WO1993009358A1

WO1993009358A1 - Shaft coupling

Info

Publication number: WO1993009358A1
Application number: PCT/JP1992/000436
Authority: WO
Inventors: Sadatomo Kuribayashi
Original assignee: Kay Seven Co., Ltd.
Priority date: 1991-11-08
Filing date: 1992-04-08
Publication date: 1993-05-13
Also published as: KR930703547A; AU1582592A; CA2085112A1

Abstract

A shaft coupling characterized in that a metal driving shaft side mounting member (6) is mounted on the outer circumferential surface of an end portion (2) of a driving shaft, that the mounting member has a pair of sliding external surfaces (10) parallel the X-Z plane, that a metal driving shaft side mounting member (8) is mounted on the outer circumferential surface of an end portion (4) of a follower shaft, that the mounting member has a pair of sliding external surfaces (12) parallel to the Y-Z plane, and that a plastic rotational force transmitting member (14) is disposed which has on the driving side a pair of first sliding internal surfaces (16) slidable relative to the pair of sliding external surfaces (10), on the follower side a pair of second sliding internal surfaces (18) slidable relative to the pair of sliding external surfaces (12), and a wall (20) interposed therebetween so as to abut against both the driving shaft side mounting member (6) and follower shaft side mounting member (8). This shaft coupling makes it possible not only to accommodate eccentricity, deflection angle and movement in a thrust direction between the driving shaft side and follower shaft side so as to transmit a rotational force smoothly and with a small loss but also to simplify the construction, assembling and maintenance.

Description

Akira Shaft [Technical field]

The present invention relates to a shaft coupling, and more particularly to a shaft coupling that can satisfactorily deal with eccentricity, declination, and thrust movement between a driving shaft side and a driven shaft side, and has a simple structure and assembly.

[Background Art] Fine 1

In various types of torque transmission mechanisms, the ends of two rotating shafts are connected by joints. For example, the output rotation shaft of the motor and the input rotation shaft of the pump are connected by a joint. In this case, it takes much labor to carefully install the motor and the pump so that the output rotary shaft of the motor and the input rotary shaft of the pump are sufficiently aligned. In addition, even if such an arrangement is carefully installed, some eccentricity and eccentricity remain between both rotating shafts, and furthermore, motors and pumps generate vibration during operation. Therefore, in order to absorb these in a joint portion, a flexible joint using a flexible member such as a panel or rubber has been conventionally used. An Oldham coupling is used as a joint that can cope with eccentricity, eccentricity, and thrust movement.

In such a shaft coupling, an appropriate mounting member is attached to each of the driving shaft end portion and the driven shaft end portion, and the driving shaft side mounting member and the driven shaft side mounting member are connected by an appropriate mechanism. It is common.

[Disclosure of the Invention]

INDUSTRIAL APPLICABILITY The present invention can satisfactorily deal with eccentricity, eccentricity, and thrust direction movement between the driving shaft side and the driven shaft side, has a simple structure and assembly, and can reduce the size of the rotational force transmission mechanism. The purpose is to provide a shaft coupling with a new structure.

Another object of the present invention is to provide a shaft coupling having the above-described novel structure, capable of smoothly transmitting a rotational force, and being easy to maintain.

It is a further object of the present invention to provide a shaft coupling to which a mounting member can be attached without machining a shaft end into a special shape.

According to the present invention,

An end of the driving shaft and an end of the driven shaft are disposed to face each other, and a driving shaft side mounting member is mounted on an outer peripheral surface of the driving shaft end, and the driving shaft side mounting member is mounted on the driving shaft side mounting member. A drive shaft side slide member having a pair of slide surfaces parallel to the surface in the first direction passing through the center is provided.

A driven shaft-side mounting member is mounted on the outer peripheral surface of the driven shaft end, and the driven shaft-side mounting member has a pair of slide surfaces parallel to a surface in the second direction passing through the center of rotation of the driven shaft. And a driven shaft side slide member having

A rotational force transmitting member is disposed radially outward of the driving shaft side mounting member and the driven shaft side mounting member, and the rotational force transmitting member is a slide that forms a pair with the driving shaft side mounting member. The first slide surface, which forms a pair slidable in a plane parallel to the first direction surface, and the slide surface, which forms a pair of the driven shaft side mounting member, with respect to the slide surface in the second direction. And a second slide surface forming a pair slidable in a plane parallel to the shaft coupling.

Is provided.

In the present invention, the rotational force transmitting member is preferably cylindrical.

In one aspect of the present invention, the rotational force transmitting member is provided between the first slide surface and the second slide surface in the axial direction so as to protrude inward so as to be orthogonal to the axial direction. In addition, a wall is provided which can be in contact with the driving shaft end and Z or the driving shaft side mounting member and the driven shaft end and the knob or the driven shaft mounting member.

In another aspect of the present invention, at least the sliding surface of the driving shaft side mounting member and at least the sliding surface of the driven shaft side mounting member are made of metal, and the rotational force transmission is performed. At least the first slide surface and the second slide surface are made of plastic.

In still another aspect of the present invention, the driving shaft-side mounting member has a substantially rectangular parallelepiped shape and also serves as a driving shaft-side slide member, and two outer peripheral surfaces at opposing positions thereof correspond to the slide surface. The driven-shaft-side mounting member has a substantially rectangular parallelepiped shape and also serves as the driven-shaft-side slide member, and two outer peripheral surfaces at opposing positions thereof are slide surfaces. In still another aspect of the present invention, the driving shaft-side mounting member is detachably mounted on the driving shaft end, and the driven shaft-side mounting member is detachably mounted on the driven shaft end. Installed.

In the present invention, the mounting of the driving shaft side mounting member to the outer peripheral surface of the driving shaft end portion and the mounting of the driven shaft side mounting member to the outer peripheral surface of the driven shaft end portion are each performed by a cylinder at the shaft end portion. This can be done by tightening the mounting member to the outer peripheral surface of the shape.

In the present invention, the outer peripheral surface of the driving shaft end and the outer peripheral surface of the driven shaft end respectively include a driving shaft side stopper and a driven shaft side for regulating the axial position of the rotational force transmitting member. Stopper can be attached detachably.

Further, as an aspect of the present invention, the driving shaft side slide member is detachably attached to the driving shaft side attachment member, and the driven shaft side slide member is attached to the driven shaft side mounting member. Some are removably attached to members.

In the present invention, the drive shaft side slide member and the driven shaft side slide member can be provided with a removable exchange plate on a slide surface. Here, there is a mode in which the rotation force transmitting member is made of metal and the replacement plate is made of plastic.

In one aspect of the present invention, the driving shaft side slide is provided. The member extends further to the driven side than the driven side end surface of the driving shaft side mounting member, and the driven shaft side slide member is further driven side than the driven side end surface of the driven shaft side mounting member. It extends to.

In another aspect of the present invention, the driving shaft side slide member extends only radially from the driving shaft side mounting member, and the driven shaft side slide member extends from the driven shaft side mounting member. It extends only in the radial direction.

In the present invention, the driving shaft side mounting member and the Z or the driving shaft side for regulating the axial position of the rotating force transmitting member are respectively provided on the driving side end surface and the driven side end surface of the rotating force transmitting member. A member for contact with the slide member and the above-mentioned driven shaft side attachment member and / or a member for contact with the driven shaft side slide member can be detachably attached.

In the present invention, it is preferable that the first direction is orthogonal to the second direction.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a shaft coupling according to the present invention, and FIG. 2 is a longitudinal sectional view of an assembled state thereof. FIG. 3 is a schematic explanatory view showing an example of a torque transmitting mechanism to which the shaft coupling of the present embodiment is applied.

FIG. 4 and FIG. 5 are views showing a modification of the first embodiment.

FIG. 6 is an exploded view showing a second embodiment of the shaft coupling according to the present invention. FIG. 7 is a perspective sectional view, FIG. 7 is a longitudinal sectional view of the assembled state, and FIG. 8 is a view of the shaft coupling of the present embodiment viewed from the driving side.

FIG. 9 is an exploded perspective view showing a third embodiment of a shaft coupling according to the present invention. FIG. 10 is a longitudinal sectional view of an assembled state of the shaft coupling. FIG. FIG.

FIG. 12 is an exploded perspective view showing a fourth embodiment of a shaft coupling according to the present invention, FIG. 13 is a longitudinal sectional view of an assembled state thereof, and FIG. 14 is a sectional view taken along line AA of FIG. .

FIG. 15 is an exploded perspective view showing a fifth embodiment of the shaft coupling according to the present invention, FIG. 16 is a longitudinal sectional view of an assembled state thereof, and FIG. 17 is a BB sectional view thereof. .

FIG. 18 is an exploded perspective view showing a sixth embodiment of the shaft coupling according to the present invention, and FIG. 19 is a perspective view of an assembled state thereof.

FIG. 20 is an exploded perspective view showing a seventh embodiment of the shaft coupling according to the present invention.

FIG. 21 is an exploded perspective view showing an eighth embodiment of the shaft coupling according to the present invention.

[Best Mode for Carrying Out the Invention]

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view showing a first embodiment of a shaft coupling according to the present invention, and FIG. 2 is a longitudinal sectional view of an assembled state thereof. You.

In these figures, 2 is the end of the cylindrical driving shaft, and 2 and are the rotation center of the driving shaft. 4 is a cylindrical driven shaft end, and 4 'is a driven shaft rotation center. The driving shaft end 2 and the driven shaft end 4 face each other and are arranged so that the rotation centers 2 ′ and 4 ′ coincide with each other in the Z direction.

A metal driving shaft side attachment member 6 is mounted on the outer peripheral surface of the driving shaft end 2. The mounting member has a through hole in the Z direction, and the inner surface of the through hole is adapted to the outer peripheral surface of the driving shaft end. A key or a spline may be used to mount the mounting member 6, or the cylindrical outer peripheral surface of the driving shaft end 2 may be processed or press-fitted after processing. You can do that too. The driving shaft-side mounting member 6 has a substantially rectangular parallelepiped shape, and its outer peripheral surface includes a pair of planes parallel to the X-Z plane and a pair of planes parallel to the YZ plane. Of these planes, a pair of planes parallel to the X-Z plane is defined as a slide outer surface 10 and the distance between them is L.

Similarly, a driven shaft side mounting member 8 made of metal is mounted on the outer peripheral surface of the driven shaft end 4. The mounting member has a through hole in the Z direction, and the inner surface of the through hole is adapted to the outer peripheral surface of the driven shaft end. A key or a spline may be used to attach the attachment member 8, or the cylindrical outer peripheral surface of the driven shaft end 4 may or may not be machined. It can also be mounted by press fitting. The driven shaft side mounting member 8 has a substantially rectangular parallelepiped shape, and its outer peripheral surface includes a pair of planes parallel to the XZ plane and a pair of planes parallel to the YZ plane. Of these planes, a pair of planes parallel to the YZ plane are referred to as slide outer surfaces 12, and the distance between them is L.

As described above, in this embodiment, the driving shaft side mounting member also serves as the driving shaft side slide member, and the driven shaft side mounting member also serves as the driven shaft side sliding member.

Reference numeral 14 denotes a rotational force transmitting member. The rotational force transmitting member 14 is located so as to cover both the driving shaft side mounting member 6 and the driven shaft side mounting member 8 in a radially outward direction, and one of the axially extending portions (on the driving side). Part) is in contact with the driving shaft side mounting member 6, and the other part (the driven side part) is in contact with the driven shaft side mounting member 8. That is, the rotational force transmitting member 14 is cylindrical in the Z direction, and has a pair of planes 16 and YZ planes parallel to the X-Z plane on the driving shaft side and the driven shaft side on its inner surface. A pair of planes 18 are formed in parallel with each other, and a wall 20 in the XY plane is formed protruding inward at the center in the Z direction. In a portion on the driving side of the wall 20, a pair of planes 16 parallel to the X-Z plane are a first sliding inner surface slidable with the sliding outer surface 10 of the driving shaft side mounting member. And their spacing is In a portion on the driven side from the wall 20, a pair of planes 18 parallel to the YZ plane are formed on the driven shaft side mounting member. The second slide inner surface is slidable with the outer slide surface 12, and the distance between them is L.

The torque transmitting member 14 is made of a plastic material. The plastic material has a suitable sliding property with respect to the metal material of the driving shaft side mounting member 6 and the driven shaft side mounting member 8, for example, iron, and has a suitable strength. Further, a synthetic resin having an appropriate flexibility, for example, a polyacetal resin or a polyamide resin can be used. The plastic torque transmitting member 14 has self-lubricating properties, and has a slide outer surface 10 of the driving shaft side mounting member 6 and a slide outer surface of the driven shaft side mounting member 8. Continues lubrication in contact with 1 2.

As shown in FIG. 2, the wall 20 of the rotational force transmitting member 14 has a thickness T, and a distance T ₂ (> T,) between the driving shaft end 2 and the driven shaft end 4. Are arranged opposite to each other. The range of movement of the rotational force transmitting member in the Z direction is limited by the wall 20 abutting on the driving shaft side mounting member 6 and the driven shaft side mounting member 8, whereby the rotational force transmitting member 14 and the driving shaft are restricted. The engagement with the side mounting member 6 and the driven shaft side mounting member 8 is maintained. The length of the rotational force transmitting member 14 in the Z direction is T.

Thus, in the present embodiment, the rotational force transmitting member 14 is configured such that the first slide inner surface 16 on the driving side slides in the X direction with respect to the slide outer surface 10 of the mounting member on the driving shaft side. Sliding movement in Z direction and rotation about Y direction As a result, the second slide inner surface 18 on the driven side can be moved relative to the driving shaft side mounting member 6, and the sliding movement in the Y direction and the Z direction can be performed with respect to the slide outer surface 12 on the driven shaft side mounting member. By performing the sliding movement and the rotation about the X direction, the sliding movement relative to the driven shaft-side mounting member 8 can be achieved. In this embodiment, when the driving shaft end 2 rotates, the rotational force is transmitted from the driving shaft side mounting member 6 to the driven shaft side mounting member 8 via the rotational force transmitting member 14, and the driven shaft end 2 is rotated. 4 is rotated. If eccentricity, eccentricity, or thrust movement occurs between the driving shaft end 2 and the driven shaft end 4, the relative movement between the rotating force transmitting member 14 and the driving shaft side mounting member 6 as described above. The relative movement between the moving and rotational force transmitting member 14 and the driven shaft side mounting member 8 can cope well. Interval T ₂ of the between the driving shaft side mounting member 6 and the driven shaft side mounting member 8, the eccentric, declination or thrust bets movement of the expected size, and the wall 2 0 as appropriate according to the thickness You only have to decide. The same applies to the distance between a pair of outer surfaces of the outer peripheral surfaces of the driving shaft side mounting member 6 and the driven shaft side mounting member 8 other than the slide outer surface.

The shaft coupling of the present embodiment as described above can be easily manufactured by assembling the constituent members as shown in FIG.

In the present embodiment, the driving shaft side mounting member 6 is mounted on the outer peripheral surface of the driving shaft end 2, and the driven shaft side mounting member 8 is mounted on the outer peripheral surface of the driven shaft end 4. sufficiently small spacing T ₂ of the between the driving shaft end 2 and the driven shaft end 4 And the length T of the torque transmitting member 14 in the Z direction can be shortened, so that the axial length of the entire torque transmitting mechanism can be reduced. Miniaturization is possible.

In addition, according to the present embodiment, the wall 20 not only serves to limit the movement of the rotational force transmitting member 14 in the Z direction and keep it in a predetermined position, but also to reduce the strength of the rotational force transmitting member. It has also helped to improve.

In this embodiment, since the torque transmitting member 14 has a moderate flexibility, it is possible to suppress the transmission of vibration between the driving shaft side and the driven shaft side, and further to transmit the torque in the case of a sudden load change or the like. Can be changed smoothly.

Further, in this embodiment, since the torque transmitting member 14 exhibits self-lubricating properties in sliding contact with the driving shaft side mounting member 6 and the driven shaft side mounting member 8, it is necessary to use a lubricating oil. And maintenance is easy.

FIG. 3 is a schematic explanatory view showing an example of a torque transmitting mechanism to which the shaft coupling of the present embodiment is applied. The end of the output rotary shaft of the motor M is the driving shaft end 2 of the shaft coupling C of the present invention, and the end of the input rotary shaft of the pump P as the driven device is the driven shaft end of the shaft coupling C of the present invention. It is part 4.

At the time of connection by the shaft coupling C, the mounting member 6 is fixed to the output rotary shaft end 2 of the motor M, and the mounting member and the torque transmitting member 14 are adapted to each other. The member and the mounting member 8 are matched, and the pump P is attached to the mounting member. Adjust and fix while rotating the input rotary shaft end 4 to the predetermined position in the axial direction. At this time, it is not necessary to strictly remove the eccentricity of the driving shaft end 2 and the driven shaft end 4, remove the eccentricity, and set the position in the thrust direction.For example, the eccentricity is 1 mm, the eccentricity is 1 degree and Even if the thrust direction position error is 1 mm.

To release the connection by the shaft coupling C, the reverse operation to the above connection may be performed.

4 and 5 are views showing a modification of the first embodiment. FIG. 4 is a view as seen from the driving side, and FIG. 5 is a view as seen from the driven side.

In this modified example, the distance between a pair of outer peripheral surfaces parallel to the YZ plane of the driving shaft side mounting member 6 is also equal to the distance between a pair of slide outer surfaces 10 parallel to the X—Z plane. It is said that. The distance between a pair of outer peripheral surfaces parallel to the X-Z plane of the driven shaft side mounting member 8 is also set to L similarly to the distance between a pair of slide outer surfaces 12 parallel to the YZ plane. . In the torque transmitting member 14, the space between the pair of first slide inner surfaces 16 orthogonal to the pair of first slide inner surfaces 16 is larger than L at the portion on the driving side of the wall 20 (L + α). ), And in the portion following the wall 20, the distance between a pair of inner surfaces orthogonal to the pair of second slide inner surfaces 18 is set to be larger than L (L + α). .

-In the embodiment shown in Fig. 1 and Fig. 2, the torque transmission member 14 is attached to the driving shaft side attachment member 6 and the driven shaft side When adapting the mounting member 8, it was necessary to consider the directionality so that the outer surfaces of the slides of these mounting members were orthogonal to each other. In this modification, however, the first rotation force transmitting member Since a predetermined direction is set between the inner surface of the slide and the inner surface of the second slide, and two pairs of outer peripheral surfaces are equivalent for the driving shaft side mounting member 6 and the driven shaft side mounting member 8, respectively. It is not necessary to consider the directionality when matching the driving shaft side mounting member 6 and the driven shaft side mounting member 8 to the torque transmitting member 14.

FIG. 6 is an exploded perspective view showing a second embodiment of the shaft coupling according to the present invention, FIG. 7 is a longitudinal sectional view of an assembled state thereof, and FIG. This is a view from the side. In these drawings, members having the same functions as those in FIGS. 1 to 5 are denoted by the same reference numerals.

In this embodiment, the driving shaft-side mounting member 6 has a substantially cylindrical shape, and three projections (driving shaft-side slide members) 7 are provided on the outer peripheral surface thereof so as to protrude in opposite directions in the Y direction. Have been. Each projection 7 is formed with a pair of slide outer surfaces 10 parallel to the YZ plane. Similarly, the driven shaft side mounting member 8 has a substantially cylindrical shape, and its outer peripheral surface is provided with three projections (driven shaft side slide members) 9 which can protrude in opposite directions in the X direction. I have. Each projection 9 is formed with a pair of slide outer surfaces 12 parallel to the XZ plane. The inner surface of the cylindrical torque transmitting member 14 has two types of grooves 13, 1, 1, 1 extending in the Z direction at a portion driven by the wall 20 and a portion driven by the wall 20. 5 are formed. Three grooves 13 are formed at positions facing each other in the Y direction, and each groove 13 has a pair of first slide inner surfaces 16 parallel to the YZ plane. Similarly, three grooves 15 are formed at positions facing each other in the X direction, and each groove 15 has a pair of second slide inner surfaces 18 parallel to the X—Z plane. I have.

In the portion on the driving side of the wall 20, the protrusion 7 of the mounting member on the driving shaft side is housed in the groove 13, and the slide outer surface 10 and the first slide inner surface 16 slide. Contact as possible. On the other hand, in the portion on the driven side from the wall 20, the protrusion 9 of the driven shaft side mounting member is housed in the groove 15, and the slide outer surface 12 and the second slide inner surface 18 are formed. Are slidably in contact.

The function of the shaft coupling of this embodiment is basically the same as that of the shaft coupling of the first embodiment.

FIG. 9 is an exploded perspective view showing a third embodiment of the shaft coupling according to the present invention, FIG. 10 is a longitudinal sectional view of an assembled state thereof, and FIG. It is the figure seen from the side. In these drawings, members having the same functions as those in FIGS. 1 to 8 are denoted by the same reference numerals.

In this embodiment, the driving shaft side mounting member 6 is flat on the Y-Z plane. An in-plane slit is formed, and a portion adjacent to the slit is tightened by a bolt, whereby the driving shaft end 2 of the mounting member is formed. Has been fixed. Similarly, the driven shaft side mounting member 8 has a slit formed in a plane parallel to the X-Z plane, and a portion adjacent to the slit is tightened by a bolt. As a result, the attachment member is fixed to the driven shaft end 4.

In this embodiment, a groove (drive shaft side slide member) 7a is formed in the drive shaft side mounting member 6, and a pair of slide inner surfaces 10a is formed in each groove 7a. I have. Also, a groove (a driven shaft side slide member) 9a is formed in the driven shaft side mounting member 8, and a pair of slide inner surfaces 12a is formed in each groove 9a. On the other hand, on the inner surface of the torque transmitting member 14, a projection 13 a is formed at a portion on the driving side from the wall 20, and each projection 13 a is a pair parallel to the X—Z plane. The first slide has an outer surface 16a. Similarly, a projection 15a is formed on the inner surface of the rotational force transmitting member 14 at a portion following the wall 20 on the driven side, and each projection 15a is parallel to the Y-Z plane. It has a pair of second slide outer surfaces 18a.

The projection 13a is housed in the groove 7a of the mounting member on the driving shaft side at a portion on the driving side from the wall 20, and the slide inner surface 10a and the first slide outer surface are provided. 16a is in slidable contact. On the other hand, driven by wall 20 On the side part, the projection 15a is housed in the groove 9a of the mounting member on the driven shaft side, so that the slide inner surface 12a and the first slide outer surface 18a can slide. Touching.

The function of the shaft coupling of this embodiment is basically the same as that of the shaft coupling of the first embodiment and the second embodiment. Further, in this embodiment, the mounting members 6 and 8 are fixed to the driving shaft end 2 and the driven shaft end 4 by tightening at the time of assembling. It is not necessary to adjust the angle (angle) and the phase of the driven shaft end 4. In addition, the driving shaft end 2 and the driven shaft end 4 do not require any special addition to the outer peripheral surface, and may have a cylindrical shape.

FIG. 12 is an exploded perspective view showing a fourth embodiment of the shaft coupling according to the present invention, FIG. 13 is a longitudinal sectional view showing an assembled state thereof, and FIG. FIG. In these figures, members having the same functions as those in FIGS. 1 to 11 are denoted by the same reference numerals.

A metal driving shaft side mounting member 6 is mounted on the outer peripheral surface of the driving shaft end 2. The mounting member has a through hole in the Z direction, and the inner surface of the through hole is adapted to the outer peripheral surface of the driving shaft end. As shown in the drawing, a slit in a plane parallel to the Y-Z plane is formed in the mounting member 6 so as to reach the through hole from the outside, and the slit is formed in the slit. By fastening the adjacent part in the X direction through the bolt 110, the attachment member 6 is attached. You. The outer peripheral surface of the driving shaft side mounting member 6 is composed of a pair of planes parallel to the XZ plane and a pair of planes parallel to the YZ plane. Of these planes, a pair of planes parallel to the X-Z plane is defined as a slide outer surface 107, and the distance between them is L.

Similarly, a driven shaft side mounting member 8 made of metal is mounted on the outer peripheral surface of the driven shaft end 4. The mounting member has a through hole in the Z direction, and the inner surface of the through hole is adapted to the outer peripheral surface of the driven shaft end. As shown in the drawing, the mounting member 8 is formed with a slit in a plane parallel to the X-Z plane so as to reach the through hole from the outside, and this slit is formed. The mounting member 8 is attached by tightening a portion adjacent to the bracket in the Y direction through the bolt 112. The outer peripheral surface of the driven shaft side mounting member 8 includes a pair of planes parallel to the XZ plane and a pair of planes parallel to the YZ plane. Of these planes, a pair of planes parallel to the Y-Z plane is defined as a slide outer surface 109, and the distance between them is L.

As described above, in the present embodiment, similarly to the first embodiment, the driving shaft side mounting member also serves as the driving shaft side sliding member, and the driven shaft side mounting member serves as the driven shaft side sliding member. Also serves as.

The rotative transmission member 14 made of blast is located so as to cover both the driving shaft side mounting member 6 and the driven shaft side mounting member 8 in the radial direction outside, and one of the axially The part is in contact with the driving shaft side mounting member 6 and the other part is in contact with the driven shaft side mounting member 8. That is, the rotational force transmitting member 14 is cylindrical in the Z direction, and its inner surface is formed of a pair of planes parallel to the X-Z plane and a pair of planes parallel to the YZ plane. A pair of planes parallel to the X-Z plane are a first slide outer surface 115a slidable with the slide outer surface 7 of the driving shaft side mounting member, and the distance between them is . A pair of planes parallel to the Y-Z plane is a second slide outer surface 115b that can slide with the slide outer surface 9 of the above-mentioned driven shaft side mounting member, and the interval between them is L.

As shown in FIG. 13, the driving shaft end 2 and the driven shaft end 4 are opposed to each other with a space T ′ therebetween. The interval T ′ may be appropriately determined according to the magnitude of the expected eccentricity, declination, or thrust movement. Rubber stops 1 16 and 1 18 are detachably attached to the driving shaft end 2 and the driven shaft end 4, respectively. The position in the Z direction of 4 is regulated to maintain the engagement with the driving shaft side mounting member 6 and the driven shaft side mounting member 8.

The shaft coupling of the present embodiment as described above can be easily manufactured by assembling the constituent members as shown in FIG. In particular, during this assembly, the mounting members 6 and 8 are fixed to the driving shaft end 2 and the driven shaft end 4 by tightening, so that the phase (rotation angle) of the driving shaft end 2 and the driven Shaft end There is no need to adjust the phase of part 4 to. In addition, the driving shaft end 2 and the driven shaft end 4 do not require any special processing, and may have a cylindrical shape. During disassembly, one of the stoppers 116 and 118 is moved in the Z direction so as to move away from the rotational force transmitting member 14 and the rotational force transmitting member 1 is moved in that direction. 4. After moving, the thickness of the driving shaft side mounting member 6 and the driven shaft side mounting member 8 (dimension in the Z direction) so that one of the driving shaft end 2 and the driven shaft end 4 is kept away from the other. The distance between the driving shaft end 2 and the driven shaft end 4 is slightly widened by moving the driven shaft by a distance substantially equivalent to the distance between the driving shaft end 2 and the driven shaft end 4. The mounting member 8 can be removed.

The function of the shaft coupling of this embodiment is basically the same as that of the first embodiment.

FIG. 15 is an exploded perspective view showing a fifth embodiment of the shaft coupling according to the present invention, FIG. 16 is a longitudinal sectional view of an assembled state thereof, and FIG. It is sectional drawing. In these drawings, members having the same functions as those in FIGS. 1 to 14 are denoted by the same reference numerals.

This embodiment is different from the fourth embodiment only in the direction of the slit of the driving shaft side mounting member 6 and the direction of the slit of the driven shaft side mounting member 8. The same operation and effect as those of the embodiment are obtained.

FIG. 18 is an exploded perspective view showing a sixth embodiment of the shaft coupling according to the present invention, and FIG. 19 is a perspective view of an assembled state thereof. You. In these drawings, members having the same functions as those in FIGS. 1 to 17 are denoted by the same reference numerals.

A metal driving shaft side mounting member 6 is mounted on the outer peripheral surface of the driving shaft end 2. This attachment is performed by a key connection, a spline connection, or other appropriate means such as press-fitting, so that the driven-side end face of the mounting member 6 is located on substantially the same plane as the driven-side end face of the driving shaft end 2. Is set. On the outer peripheral surface of the mounting member 6, two drive shaft side slide members 2110a and 210b are integrally formed at symmetrical positions with respect to the drive shaft rotation center 2 '. These slide members 210a and 210b extend further to the driven side than the driven-side end surface of the driving shaft-side mounting member 6, and each of the slide members forms a pair parallel to the YZ plane. Has an outer surface. An exchange plate 211 is detachably attached to the outer surfaces of these slides. The exchange plate is exchanged for a new exchange plate after exhaustion.

Similarly, a driven shaft side mounting member 8 made of metal is mounted on the outer peripheral surface of the driven shaft end 4. This attachment is performed by a key connection, a spline connection, or other appropriate means such as press-fitting, so that the driving-side end surface of the mounting member 8 is substantially flush with the driving-side end surface of the driven shaft end 4. Is set to. On the outer peripheral surface of the mounting member 8, two driven shaft side slide members 21a and 21b are integrally formed at symmetrical positions with respect to the driven shaft rotation center 4 '. These sly The sliding members 2 1 2 a and 2 1 2 b extend further to the driving side than the driving side end surface of the driven shaft side hub 8, and each of the sliding outer surfaces forms a pair parallel to the X—Z plane. Having. A replacement plate 211 is detachably attached to the outer surface of these slides. The exchange plate is exchanged for a new exchange plate after exhaustion.

The rotating force transmitting member 14 includes the driving shaft side mounting member 6 and the driven shaft side mounting member 8, the driving shaft side slide members 210a and 210b, and the driven shaft side sliding member. They are located so as to cover them outside in the radial direction of 2 12 a and 2 12 b. The rotational force transmitting member 14 has a cylindrical shape in the Z direction, and has two first slide grooves 2 16 a, having a pair of first slide inner surfaces parallel to the Y—Z surface on its inner surface. Two second slide grooves 2 18 a and 2 18 b having a pair of second slide inner surfaces parallel to the X-Z plane are formed. The slide inner surfaces of the first slide grooves 2 16 a and 2 16 b are the replacement plates 2 11 1 and Y — Z plane of the drive shaft side slide members 2 10 a and 2 10 b, respectively. Similarly, the slide inner surfaces of the second slide grooves 2 18 a and 2 18 b are respectively connected to the driven shaft side slide members 2 1 2 a and 2 1 2 b. The exchange plate 2 1 1 can slide in the X-Z plane. Note that the torque transmission member 14 and other dimensions are set so that these slides are possible.

The drive-side end face of the torque transmission member 14 is in contact with the drive-side The member 220 is detachably mounted by screwing, and similarly, the driven contact member 222 is attached to and detached from the driven end surface of the rotational force transmitting member 14 by screwing. Mounted as possible. These contact members 220 and 222 transmit torque by contact with the driving end surface of the driving shaft mounting member 6 and the driven end surface of the driven shaft mounting member 8, respectively. Restrict the axial position of member 14. Of course, the distance between these abutting members 220 and 222 is determined by the maximum distance that can be predicted between the driving-side end face of the driving-shaft-side mounting member 6 and the driven-side end face of the driven-shaft-side mounting member 8. Is set too large.

As the exchange plate 211, a relatively soft metal such as bronze may be used, or an oil-impregnated alloy or a plastic material may be used to obtain self-lubricating properties. As the plastic material, a synthetic resin having an appropriate sliding property with respect to the metal material of the rotational force transmitting member 14, for example, iron, an appropriate strength, and an appropriate flexibility is used. Polyacetal resin or polyamide resin can be used.

Thus, in the present embodiment, the rotational force transmitting member 14 is formed such that the first slide grooves 2 16 a and 2 16 b correspond to the driving shaft side slide members 2 10 a and 2 10 b. By performing a slide movement in the Y direction, a slide movement in the Z direction, and a rotation about the X direction relative to the exchange plate 2 1 1, the slide plate can move relative to the mounting member 6 on the driving shaft side. 2nd slide groove 2 18 a, 2 18 b is the slide member in the X direction, the slide movement in the Z direction, and the Y direction with respect to the exchange plate 2 11 of the driven shaft side slide member 2 1 2 a and 2 1 2 b. The rotation about the center enables the relative movement with respect to the driven shaft side mounting member 8.

The shaft coupling of the present embodiment as described above can be easily manufactured by assembling the constituent members as shown in FIG. Then, when replacing the exchange plate 2 11, one of the driving side contact member 220 and the driven side contact member 222 is removed, and the rotational force transmitting member 14 is changed to Z. After moving in the direction, it can be performed immediately.

In the present embodiment, when the exchange plate 211 is made of a plastic material, the exchange plate 211 has an appropriate flexibility, so that the vibration transmission between the driving shaft side and the driven shaft side is reduced. The lubricating oil can be suppressed, and the torque transmission can be changed smoothly in the case of a sudden load change, etc., and the self-lubricating property is exhibited in sliding contact with the torque transmitting member 14. There is no need to use a, and maintenance is easy.

In this embodiment, the driving shaft side slide members 210a and 210b extend further from the driven end surface of the driving shaft side mounting member 6 to the driven side. Since the slide members 2 1 2 a and 2 1 2 b extend further to the driving side than the driving side end surface of the driven shaft side mounting member 8, the contact area with the torque transmitting member 14 is large. However, the load per unit area is small and wear is small. The function of the shaft coupling of this embodiment is basically the same as that of the ^second embodiment.

FIG. 20 is an exploded perspective view showing a seventh embodiment of the shaft coupling according to the present invention. In these drawings, members having the same functions as those in FIGS. 1 to 19 are denoted by the same reference numerals.

In this embodiment, four driven shaft side slide members 2 10 a-1, 2 10 a-2, 2 10 b-1, 2 10 b-2 and four driven shaft side slide members 2 1 2 a — 1, 2 1 2 a-2, 2 1 2 b — 1, 2 1 2 b — 2 are formed, and in response to this, the four first Slide grooves 2 16 a-1, 2 16 a-2, 2 16 b-1, 21 Sb-2 and 4 second slide grooves 2 18 a-1, 2 18 a- It differs from the sixth embodiment only in that 2, 2 18 b — 1 and 2 2 8 b — 2 are formed. This embodiment has the same operation and effect as the sixth embodiment, and further has a larger contact area between the driving shaft side slide member and the driven shaft side slide member and the rotational force transmitting member 14. Thus, a larger rotating force can be transmitted.

FIG. 21 is an exploded perspective view showing an eighth embodiment of the shaft coupling according to the present invention. In these drawings, members having the same functions as those in FIGS. 1 to 20 are denoted by the same reference numerals.

In the present embodiment, the driving shaft side slide members 210a and 210b and the driven shaft side slide members 211a and 212b are formed by screws. It is attached to the driving shaft side mounting member 6 and the driven shaft side mounting member 8 by the stopper, that no replacement plate is mounted on these slide members, and that the driving shaft side slide member is attached. 210a, 210b and the driven shaft side slide members 2122a, 212b extend only radially from the driving shaft side mounting member 6 and the driven shaft side mounting member, respectively. Only the above is different from the sixth embodiment. This embodiment has the same operation and effect as the sixth embodiment, and furthermore, the driving shaft side slide member does not extend from the driven side end surface of the driving shaft side mounting member to the driven side, so that the driven shaft Since the side slide member does not extend to the driving side from the driving side end surface of the driven shaft side mounting member, the engagement between the sliding member and the rotational force transmitting member 14 is released. There is a point that the part 2 and the driven shaft end 4 can be independently rotated.

In the present invention, one of the slide member and the rotational force transmitting member may be made of metal and the other may be made of plastic, both may be made of metal, or both may be made of plastic. It may be made of lacquer.

[Industrial applicability]

As described above, according to the present invention, eccentricity, declination and movement in the thrust direction between the driving shaft side and the driven shaft side can be satisfactorily dealt with, and torque can be transmitted smoothly and with low loss. Thus, a shaft coupling is provided which is simple in structure, assembly and maintenance. The shaft coupling of the present invention can be manufactured from a small diameter (for example, about 20 mm in diameter) to a large diameter (for example, about 600 mm in diameter), and is used in various torque transmission mechanisms. be able to.

Claims

-2 1-Scope of billing

1. The end of the driving shaft and the end of the driven shaft are opposed to each other,

5 A driving shaft-side mounting member is mounted on the outer peripheral surface of the end of the driving shaft, and the driving shaft-side mounting member has a pair of slides parallel to a surface in the first direction passing through the center of rotation of the driving shaft. A drive shaft side slide member with a sliding surface is provided.

The driven shaft side mounting member is mounted on the outer peripheral surface of the driven shaft end.

The driven shaft side mounting member is provided with a driven shaft side slide member having a pair of slide surfaces parallel to a surface in the second direction passing through the driven shaft rotation center. Yes,

A rotational force transmitting member is disposed radially outward of the driving shaft side mounting member and the driven shaft side mounting member.

1 5 The force transmission member is a pair of the first slide surface and the driven shaft that are slidable in a plane parallel to the surface in the first direction. And a second slide surface forming a pair slidable in a plane parallel to the surface in the second direction with respect to a slide surface forming a pair of the mounting members.

A shaft coupling characterized by 2D.

2. The shaft coupling according to claim 1, wherein the torque transmitting member is cylindrical.

3. The rotational force transmitting member is disposed between the first slide surface and the second slide surface in the axial direction.

'2 5 2. The shaft coupling according to claim 1, wherein the shaft coupling has a wall capable of abutting on the driving shaft-side mounting member and the driven shaft end and the driven shaft-side mounting member.

4. At least the sliding surface of the driving shaft side mounting member and the at least sliding surface of the driven shaft side mounting member are made of metal, and at least the first sliding surface and The shaft coupling according to claim 1, wherein the second slide surface is made of plastic.

5. The driving shaft side mounting member has a substantially rectangular parallelepiped shape and also serves as the driving shaft side sliding member, and the two outer peripheral surfaces at opposing positions thereof are slide surfaces. 2. The shaft coupling according to claim 1, wherein the shaft coupling has a substantially rectangular parallelepiped shape, and also serves as a driven shaft side slide member, and two outer peripheral surfaces at opposing positions thereof are slide surfaces.

6. The driving shaft side attachment member is detachably attached to the driving shaft end, and the driven shaft side attachment member is detachably attached to the driven shaft end. Shaft coupling according to item 1.

7. The mounting of the driving shaft side mounting member to the outer peripheral surface of the driving shaft end and the mounting of the driven shaft side mounting member to the outer peripheral surface of the driven shaft end are both cylindrical outer circumferences of the shaft end. 7. The shaft coupling according to claim 6, wherein said shaft coupling is formed by tightening a mounting member to a surface.

8. The axial position of the torque transmitting member is located on the outer peripheral surface of the driving shaft end and the outer peripheral surface of the driven shaft end, respectively. The drive shaft side stopper and the driven shaft side stopper for restricting the rotation are detachably mounted.

Shaft coupling according to item 1.

9. The drive shaft side slide member is detachably attached to the drive shaft side attachment member, and the driven shaft side slide member is detachably attached to the driven shaft side attachment member. The shaft coupling according to claim 1, wherein

10. The shaft coupling according to claim 1, wherein the drive shaft side slide member and the driven shaft side slide member have detachable exchange plates mounted on the slide surface. .

11. The shaft coupling according to claim 10, wherein the torque transmitting member is made of metal, and the replacement plate is made of plastic.

12. The drive shaft side slide member extends further to the driven side than the driven side end surface of the drive shaft side mounting member, and the driven shaft side slide member is connected to the driven shaft side mounting portion. The shaft coupling according to claim 1, wherein the shaft extension further extends toward the driving side than the end face on the driving side of the material.

13. The drive shaft side slide member extends only radially from the drive shaft side mounting member, and the driven shaft side slide member extends only radially from the driven shaft side mount member. The shaft coupling according to claim 1, which is extended.

1 4. Driving side end face and driven side of the torque transmission member On the end faces, the driving shaft side mounting member for regulating the axial position of the rotational force transmitting member and the member for contact with the driving shaft side slide member or the driving shaft side sliding member and the driven shaft side mounting are respectively provided. 2. The shaft coupling according to claim 1, wherein a member and a member or a member for contacting the driven shaft side slide member are detachably attached.

15. The shaft coupling according to claim 1, wherein the first direction and the second direction are orthogonal to each other.