CN105113378A - Road construction device capable of stably ascending and descending - Google Patents

Abstract

The invention discloses a road construction device capable of stably ascending and descending. The road construction device is used for polishing local bulges on pavements during road construction. The road construction device comprises an outer casing (8), a motor (9) and a polishing-head driving rod part (6) driven by the motor (9), wherein the motor (9) is in axial slidable power connection with a splined hole in a driving sleeve part (61) of the polishing-head driving rod part (6) through a splined rod (91) fixedly connected with the motor (9); the driving sleeve part (61) of the polishing-head driving rod part (6) is fixedly connected with a polishing-head mounting rod part (62) of the polishing-head driving rod part (6) through a gradually contracted connection part (612).

Description

A road construction device with stable lifting

technical field

The present application relates to the field of construction machinery, in particular to a stable lifting road construction device.

Background technique

In some construction sites, such as road construction, etc., local leveling of the subgrade surface is often required, for example, some local protrusions caused by construction defects need to be polished.

The flatness result of this grinding has a great influence on the quality of subsequent pavement surface construction, for example, occasions with high requirements for the levelness of the road surface, such as expressways, have particularly high requirements for such levelness. At the same time, because the amount of material removed in this local grinding is often not very large, traditional grinding machines are often not suitable due to factors such as equipment costs.

Contents of the invention

The purpose of the present invention is to provide a stable lifting road construction device, which can overcome the above-mentioned defects in the prior art.

A stable lifting road construction device according to the present invention is used for grinding local protrusions on the construction road surface during road construction, comprising an external housing, a motor and a grinding head driving rod part driven by the motor, wherein , the motor is axially slidably power-coupled with the spline hole in the drive sleeve portion of the grinding head drive rod component through a fixedly coupled spline rod, and the drive sleeve portion of the grinding head drive rod component Through the tapered connection part, it is fixedly connected with the grinding head installation rod part of the grinding head driving rod part, the grinding head is detachably installed on the grinding head installation rod part, and the outer peripheral surface of the driving sleeve part is provided with a shaft The extension key is used to cooperate with the axis extending keyway on the inner peripheral wall of the cylinder of the externally threaded sleeve part, and the right end of the cylinder of the externally threaded sleeve part is integrally provided with an end ring for It is detachably fixedly connected with the shoulder portion of the driving sleeve portion by a fastener, and the inside of the outer casing is provided with a protrusion extending inwardly in the radial direction so as to be held by the outer casing. The enclosed cavity is divided into a left inner cavity and a right open cavity, and the inner hole in the protrusion cooperates with the cylindrical part of the internally threaded sleeve part through the form of an axially extending key and keyway, and the inner hole The end of the cylindrical part of the threaded sleeve part is integrally provided with the end flange part to be detachably fixedly connected with the ring table part on the right side of the protrusion through a fastener, wherein , the outer diameter of the end flange part is smaller than the inner diameter of the open cavity at the right part, the inner hole diameter of the end ring is larger than the outer contour diameter of the grinding head installation rod part, thus, the The internally threaded sleeve part and the externally threaded sleeve part can be disassembled and can be moved out together through the open cavity at the right part; a semi-cylindrical shield is fixed above the right end of the external housing to form accommodating the The accommodating space of the grinding head, the upper side of the outer casing is provided with a level device for displaying the level, the left end of the outer casing and the right end of the shield are respectively fixedly provided with a height-adjusting leg device, and the The height-adjusting leg device includes a leg housing, a height-adjusting motor fixedly arranged in the inner cavity of the leg housing, a height-adjusting screw fixedly connected to the rotor of the height-adjusting motor, and an inner screw threadedly engaged with the height-adjusting screw. Threaded leg rod, the inner hole of the internally threaded leg rod is provided with an internal thread, and the outer peripheral surface is provided with a key or keyway structure for slidingly fitting with the inner cavity of the leg shell, and the lower end of the internally threaded leg rod Disc-shaped feet are provided for sitting on the construction road surface; the left end of the grinding head driving rod part is provided with a limit protrusion, the left end of the left inner cavity is provided with a left shrapnel, and the right end of the left inner cavity is provided with a right shrapnel , a left limit switch is installed between the left shrapnel and the fixing plate for fixing the motor, a right limit switch is installed between the right shrapnel and the protruding part; the height adjustment motor and the An anti-vibration sheet for reducing the vibration generated when the height adjustment motor is running is installed between the leg shells, so that the adjustment of the horizontal position is more accurate.

Through the present invention, due to the use of threaded right pressure and simultaneous or synchronous rotation generated when the motor is driven to rotate, the grinding head can be driven to perform synchronous grinding rotation and left and right translation, and only one motor is used. The amount of grinding reduces equipment costs. At the same time, it is easy to replace the related parts of the threaded pair, and the threaded pair can be replaced at any time according to different grinding materials and grinding requirements, so as to adjust the right pressing speed; on this basis, the end of the external threaded sleeve is set. The diameter of the internal hole is larger than the diameter of the mounting rod of the grinding head so that it can be moved out and removed to the right without interference from the mounting rod (only the grinding head and the sealing cover need to be removed). At the same time, this setting can increase the size of the threaded pair Diameter, increase the reaction force bearing surface during grinding and optionally increase the thread lead or reduce the thread lead angle. At the same time, the diameter of the flange at the right end where the internally threaded sleeve is provided is smaller than the diameter of the inner hole of the casing, which can ensure the smooth removal of the internally threaded sleeve. Thus, the externally threaded sleeve and the internally threaded sleeve can be removed as a whole while keeping fit, which is convenient for disassembly and maintenance. The flexibility of the equipment is increased. And setting the leg member that can use the motor to automatically adjust the height, together with the use of a level, can quickly adjust the level of the entire equipment on site according to the actual plane profile of the road surface, so that the adjustment is accurate and the processing plane after grinding can be guaranteed during grinding. Spend. The limit switch is also used to control the forward and reverse rotation of the motor to realize intelligence. The whole equipment is reliable in operation and stable in structure, which can reduce the overall cost of digging holes.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the stable lifting road construction device of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with FIG. 1 .

A stable lifting road construction device according to an embodiment, used for grinding local protrusions on the construction road surface during road construction, including an external housing 8, a motor 9, and a grinding head drive rod driven by the motor 9 Part 6, wherein the motor 9 is axially and slidably power-coupled with the spline hole in the drive sleeve part 61 of the grinding head drive rod part 6 through a fixedly coupled spline rod 91, the grinding The driving sleeve part 61 of the head driving rod part 6 is fixedly connected with the grinding head installation rod part 62 of the grinding head driving rod part 6 through the tapered connection part 612, and the grinding head installation rod part 62 is detachably installed with a grinding head. Head 620, the outer peripheral surface of the driving sleeve part 61 is provided with an axially extending key for cooperating with the axially extending key groove on the inner peripheral wall of the barrel 71 of the externally threaded sleeve part 7, the externally threaded sleeve The right end of the barrel 71 of the component 7 is integrally provided with an end ring 72 for detachably fixed connection with the shoulder 611 of the driving sleeve 61 through fasteners. The inside of the body 8 is provided with a protruding portion 81 extending inward in the radial direction so as to divide the cavity surrounded by the outer shell 8 into a left inner cavity 83 and a right open cavity 82, the protruding portion The inner hole in 81 cooperates with the cylindrical part 51 of the internally threaded sleeve part 5 through the form of an axially extending key and keyway, and the end part of the cylindrical part 51 of the internally threaded sleeve part 5 is integrally formed There is an end flange portion 52 to be detachably fixedly connected to the ring table portion on the right side of the protruding portion 81 through fasteners, wherein the outer diameter of the end flange portion 52 is smaller than the The inner diameter of the right open cavity 82, the inner hole diameter of the end ring 72 is greater than the outer diameter of the grinding head installation rod 62, thus, the inner threaded sleeve part 5 and the outer The threaded sleeve part 7 can be disassembled and can be moved out together through the open cavity 82 on the right; the upper right end of the outer housing 8 is fixedly provided with a semi-cylindrical shield 80 to form a pocket for accommodating the grinding head 620. The accommodating space 84, the upper side of the outer casing 8 is provided with a level device 3 for displaying levelness, the left end of the outer casing 8 and the right end of the shield 80 are respectively fixedly provided with a height-adjusting leg device 4, The height-adjusting leg device 4 includes a leg housing 43, a height-adjusting motor 41 fixedly arranged in the inner cavity of the leg housing 43, a height-adjusting screw 42 fixedly connected to the rotor of the height-adjusting motor 41, and a height-adjusting screw rod 42 connected to the height-adjusting motor 41. The internally threaded leg rod 44 threaded with the height adjusting screw rod 42, the inner hole of the internally threaded leg rod 44 is provided with internal thread, and the outer peripheral surface is provided with a key for slidingly fitting with the inner cavity of the leg housing 43 or The structure of the keyway, the lower end of the internal thread leg rod 44 is provided with a disc-shaped foot 441 in order to sit on the construction road surface; the left end of the grinding head drive rod part 6 is provided with a limit projection 610, and the left inner cavity The left end of 83 is provided with a left elastic piece 31, and the right end of the left inner cavity 83 is provided with a right elastic piece 32, and the left elastic piece 31 is used for fixing A left limit switch 33 is installed between the fixed plates 98 of the motor 9, a right limit switch 34 is installed between the right elastic piece 32 and the protruding part 81, and the grinding head drives the rod part 6 to the left. During operation, after the limit protrusion 610 is in contact with the left elastic piece 31, after the left elastic piece 31 presses the left limit switch 33, the motor 9 runs in reverse, and the grinding head drives the rod part 6 to the right movement, when the limit protrusion 610 is in contact with the right elastic piece 32, the right elastic piece 32 presses the right limit switch 34, the motor 9 runs in reverse, and the grinding head drives the rod part 6 to Left movement, with this cycle, can make the grinding head 620 grind the ground back and forth in the accommodating space 84; Between the height adjustment motor 41 and the leg housing 43, a device for lowering the height adjustment motor 41 is installed. The anti-vibration sheet 40 of the generated vibration makes the lifting more stable and the adjustment of the horizontal position more accurate.

Optionally, a detachable sealing plate 821 is provided on the right side of the open right cavity 82 .

Through the above methods, those skilled in the art can make various changes according to the working modes within the scope of the present invention.

Claims (2)

1. A stable lifting road construction device, used for grinding local protrusions on the construction road surface during road construction, including an external housing (8), a motor (9) and a motor driven by the motor (9) The grinding head driving rod part (6), wherein, the motor (9) is connected to the spline in the driving sleeve part (61) of the grinding head driving rod part (6) through a fixedly coupled spline rod (91). Keyhole and axially slidable power connection, the driving sleeve part (61) of the grinding head driving rod part (6) is connected with the grinding head of the grinding head driving rod part (6) through the tapered connection part (612). The installation rod (62) is fixedly connected, the grinding head (620) is detachably installed on the grinding head installation rod (62), and the outer peripheral surface of the driving sleeve (61) is provided with an axial extension key To cooperate with the axis extending keyway on the inner peripheral wall of the cylinder (71) of the externally threaded sleeve part (7), the right end of the cylinder (71) of the externally threaded sleeve part (7) is integrated An end ring (72) is molded to be detachably fixedly connected to the shoulder portion (611) of the drive sleeve portion (61) by means of fasteners, and the interior of the outer housing (8) A protrusion (81) extending inward in the radial direction is provided to divide the cavity surrounded by the outer shell (8) into a left inner cavity (83) and a right open cavity (82), so The inner hole in the protruding part (81) cooperates with the cylindrical part (51) of the internally threaded sleeve part (5) through the form of an axially extending key and keyway, and the internally threaded sleeve part (5) The end of the cylindrical part (51) is integrally formed with the end flange part (52) for detachable connection with the ring table part on the right side of the protruding part (81) through fasteners. fixed connection, wherein the outer diameter of the end flange portion (52) is smaller than the inner diameter of the right open cavity (82), and the inner diameter of the end ring (72) is larger than the grinding head The diameter of the outer contour of the mounting rod (62), whereby the internally threaded sleeve part (5) and the externally threaded sleeve part (7) can be disassembled and can be move out together; the upper right end of the outer casing (8) is fixedly provided with a semi-cylindrical shield (80) to form an accommodating space (84) for accommodating the grinding head (620), the outer casing ( 8) is provided with a spirit level device (3) for displaying the levelness, and the left end of the outer casing (8) and the right end of the shield (80) are respectively fixedly provided with a height-adjusting leg device (4), The height-adjusting leg device (4) includes a leg housing (43), a height-adjusting motor (41) fixedly arranged in the inner cavity of the leg housing (43), and a rotor of the height-adjusting motor (41) A fixedly connected height adjustment screw (42) and an internally threaded leg (44) threaded with the height adjustment screw (42), the inner hole of the internally threaded leg (44) is provided with internal threads, and the outer peripheral surface Provided for sliding fit with the lumen of the leg housing (43) The structure of the combined key or keyway, the lower end of the internal thread leg rod (44) is provided with a disc-shaped foot (441) for sitting on the construction road surface; the left end of the grinding head driving rod part (6) is provided with a limited protruding (610), the left end of the left inner cavity (83) is provided with a left shrapnel (31), the right end of the left inner cavity (83) is provided with a right shrapnel (32), and the left shrapnel (31) and the A left limit switch (33) is installed between the fixing plate (98) fixing the motor (9), and a right limit switch is installed between the right shrapnel (32) and the protrusion (81) (34); a shockproof plate (40) for reducing the vibration generated by the height adjustment motor (41) during operation is installed between the height adjustment motor (41) and the leg housing (43), so that Adjust the horizontal position more precisely. 2. The stable lifting road construction device according to claim 1, wherein a detachable sealing plate (821) is provided on the right side of the open cavity (82) on the right.