CN103144772B - Unhooking device controlled by steering engine - Google Patents

Abstract

The invention relates to an unhooking device controlled by a steering engine. The unhooking device comprises a flying ring and an unhooking mechanism, and is characterized in that the unhooking mechanism is a ball interlocking mechanism; a steering wheel is fixedly mounted on the output shaft of the steering engine, and the profile of the hub of the steering wheel drives one control central spindle in the ball interlocking mechanism in a propping manner, so that locking and unhooking to the flying ring are realized. The unhooking device not only meets the function requirements of safe hoisting and smooth release, is controlled by the steering engine, combines machinery and power, reduces assisted human, is time-saving and labor-saving, has a small size and a simple control signal, and is convenient in installation and use and reliable in unhooking.

Description

A decoupling device controlled by a steering gear

technical field

The present invention relates to a light decoupling device that can be used for parachutes, model airplanes, etc. that require automatic control, and in particular to a decoupling device controlled by a steering gear.

Background technique

The present invention relates to a light uncoupling device that can be widely used in parachutes, model airplanes, etc. that require automatic control. The special function of this device is: under the control of the steering gear, it can realize the uncoupling function under load conditions.

Traditional decoupling devices can be divided into two categories at present, one is the decoupling device that requires manual operation, this type of decoupling device requires manual hooking and unhooking, which increases manpower and reduces work efficiency. The other type is a hydraulically controlled uncoupling device. This type of uncoupling device uses a hydraulic system to control the decoupling of the hook. The greater the lifting weight, the larger the required oil cylinder, the greater the volume and quality, and the higher the cost.

Contents of the invention

The purpose of the present invention is to provide a decoupling device controlled by steering gear to solve the problems existing in the prior art, which has the advantages of automatic decoupling and rapid decoupling, and is small in size, easy to install and use, simple in control signals, and reliable in decoupling. advantage.

To achieve the above object, the idea of the present invention is: a steering wheel is installed at the output end of the steering gear. Before lifting the goods, the steering wheel is controlled by the steering gear to rotate counterclockwise to reach the far rest position. At this time, the steering wheel squeezes the control mandrel, the control mandrel moves downward, the spring is compressed, and the six holes on the hollow mandrel Balls squeeze into six holes below the hollow shaft. Half of the ball is stuck in the hole, and the other half is stuck on the ring through the arc at the upper end of the ring.

When it is necessary to unhook and release the heavy-loaded lifting ring, you only need to give the steering gear a signal to make the steering wheel on the steering gear rotate clockwise to the near rest position. In the process, under the action of the spring elastic force, the spring gradually stretches and pushes the mandrel Move upwards until no longer touching the balls, the balls move toward the hole of the hollow shaft due to external force, when the balls return to the hole of the hollow shaft, the ring without any object support will automatically loosen.

According to above-mentioned inventive concept, the present invention adopts following technical scheme:

An uncoupling device controlled by a steering gear, comprising a suspension ring and a decoupling mechanism, characterized in that the decoupling mechanism is a ball-joint decoupling mechanism; a steering wheel is fixedly installed on the output shaft of a steering gear, and the hub of the steering wheel The surface conflict drives a control mandrel in the ball-linked decoupling mechanism to realize the locking and decoupling of the suspension ring.

The ball-linked decoupling mechanism includes: a hollow shaft, 2 to 6 balls, a spring, a control mandrel and a semi-hollow column, the suspension ring is installed coaxially with the hollow shaft, and the balls move under the hollow shaft In the hole uniformly distributed in the circumferential direction, the spring is coaxial with the control mandrel, and half of the length extends into the inner hole at the lower part of the control mandrel, and the control mandrel is coaxial with the hollow shaft, and the hollow shaft and the semi-hollow column pass through three hexagonal heads Screws are connected; there is a boss at the connection end of the hollow shaft and the semi-hollow column. On this boss, it is connected with the steering gear through a round head screw. The axis of the steering gear is perpendicular to the axis of the control spindle, and the hub profile of the steering wheel is in conflict Controls the top face of the mandrel.

The hub profile of the steering wheel is formed by the hub radius according to the following changes: when the radian is δ0, the radius of the steering wheel is the smallest and unchanged, and it is near the rest position; the radian δ1 is the working section, and when the steering wheel rotates counterclockwise, its radius From small to large, it is the compression range; on the contrary, when the steering wheel rotates clockwise, its radius changes from large to small, which is the return stroke; at the arc of δ2, the radius of the steering wheel is the largest and unchanged, which is the far rest position; where δ0 and δ2 are respectively is 15-20 radians, and δ1 is 60-75 radians.

The cylindrical portion on the suspension ring is hollow, and an arc is provided at one end of the opening to coordinate with the ball.

Two-thirds of the control mandrel is hollow, and the rest is solid, and two-thirds of the spring can extend into the hollow of the control mandrel.

Compared with the prior art, the present invention has the following outstanding substantive features and significant advantages: the present invention not only solves the functional requirements of safe hoisting and smooth release, but also uses the steering gear to control the uncoupling device, combines electromechanical, reduces manpower assistance, and saves time Save effort. Moreover, it is small in size, easy to install and use, simple in control signal, and reliable in decoupling.

Description of drawings

Fig. 1 is the structural representation of the uncoupling device that steering gear control provided by the present invention

Figure 2 is the right view of Figure 1

Figure 3 is a schematic diagram of the hub profile of the steering wheel in Figure 1

Figure 4 is an expanded view of the hub profile in Figure 3

Figure 5 is a schematic diagram of the decoupling release state of the decoupling device

Detailed ways

The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment one:

Referring to Fig. 1, the decoupling device controlled by the steering gear includes a lifting ring (1) and a decoupling mechanism, which is characterized in that the decoupling mechanism is a ball coupling type decoupling mechanism; there is a steering gear (8) fixed on the output shaft A rudder wheel (7) is installed, and the hub profile of the rudder wheel (7) interferes with a control mandrel (3) in the driving ball coupling type uncoupling mechanism, so as to realize locking and uncoupling of the suspension ring (1).

Embodiment two:

Referring to Figures 1 to 5, this embodiment is basically the same as Embodiment 1, with the exceptions as follows:

The ball locking type uncoupling mechanism includes: a hollow shaft (4), 2 to 6 balls (2), a spring (10), a control mandrel (3) and a semi-hollow column (6). The lifting ring (1) and the hollow shaft (4) are coaxially installed, the balls (2) move in the circumferentially uniform holes under the hollow shaft (4), the spring (10) is coaxial with the control spindle (3), and the length Half of it extends into the inner hole of the lower part of the control mandrel (3), and the control mandrel (3) is coaxial with the hollow shaft (4), and the hollow shaft (4) and the semi-hollow column (6) pass three hexagon head screws ( 5) are connected with each other; there is a boss at the connecting end of the hollow shaft (4) and the semi-hollow column (6), on which the steering gear (8) is connected with the steering gear (8) through the round head screw (9), and the steering gear (8) The axis of the steering wheel (7) is perpendicular to the axis of the control mandrel (3), and the hub profile of the steering wheel (7) is in contact with the top surface of the control mandrel (7).

The hub profile of the steering wheel (7) is formed by the hub radius according to the following changes: when the radian is δ0, the radius of the steering wheel (7) is the smallest and unchanged, and it is near the rest position; the radian δ1 is the working section, when the steering wheel ( 7) When turning counterclockwise, its radius changes from small to large, which is the compression stroke; on the contrary, when the steering wheel (7) turns clockwise, its radius changes from large to small, which is the return stroke; when the arc is δ2, the radius of the steering wheel (7) The maximum and unchanged position is the far rest position; where δ0 and δ2 are 15-20 radians respectively, and δ1 is 60-75 radians.

The cylindrical part on the suspension ring (1) is hollow, and an arc is provided at one end of the opening to coordinate with the ball (2).

Two-thirds of the control mandrel (3) is hollow, and the rest is solid, and two-thirds of the spring (10) can extend into the hollow of the control mandrel (3).

Embodiment three:

As shown in Figure 1 and Figure 2, the uncoupling device controlled by this steering gear consists of a lifting ring (1), a hollow shaft (4), a ball (2), a spring (10), a control spindle (3), a semi-hollow column (6 ), the steering gear (8) and the steering wheel (7), the upper end of the suspension ring (1) is connected with the hollow shaft (4) through the ball (2), half of the ball (2) is stuck in the hollow shaft (4), and the other half is passed through The circular arc at the upper end of the suspension ring (1) is connected with the suspension ring (1). The hollow shaft (4) and the semi-hollow column (6) are connected by three hexagon head screws (5). The round head screw (9) is connected with the steering gear (8), two-thirds of the spring (10) is put into the control mandrel (3), and the head of the spring (10) is in contact with the hollow bottom of the hollow shaft (4) , the outer solid part of the control mandrel (3) is in contact with the steering wheel (7) on the steering gear (8).

As shown in Fig. 3 and Fig. 4, the hub profile of the steering wheel (7) is formed by changing the radius of the hub as follows: when the radian is δ0, the radius of the steering wheel (7) is the smallest and unchanged, and it is near rest position; radian δ1 is the working section, when the steering wheel (7) turns counterclockwise, its radius changes from small to large, which is the compression stroke; on the contrary, when the steering wheel (7) turns clockwise, its radius changes from large to small, which is the return stroke; in the arc δ2 , the radius of the steering wheel (7) is the largest and constant, and it is the far rest position; where δ0 and δ2 are 15 to 20 radians respectively, and δ1 is 60 to 75 radians.

As shown in Figure 1, before lifting the cargo, the steering wheel (7) is controlled by the steering gear (8) to reach the far rest position. At this time, the steering wheel (7) squeezes the center core (3), the spring (10) contracts, and the center The core (3) moves downward, extruding the six balls (2) originally on the hollow shaft (4) into the six holes below the hollow shaft (4). Half of the ball (2) is stuck in the hole, and the other half is stuck to the lifting ring (1) through the arc at the upper end of the lifting ring (1).

As shown in Figure 5, when it is necessary to unhook and release the heavy-loaded lifting ring (1), it is only necessary to give a signal to the steering gear (8) to make the steering wheel (7) on the steering gear (8) move to the near rest position, During this process, under the action of the elastic force of the spring (10), the spring gradually stretches and pushes the core (3) to move upward until it no longer touches the ball (2), and the ball (2) moves toward the hollow shaft ( 4), when the ball (2) returns to the hole of the hollow shaft (4), the lifting ring (1) without any object support will automatically loosen.

Claims (4)

1. A decoupling device controlled by a steering gear, comprising a lifting ring (1) and a decoupling mechanism, characterized in that the decoupling mechanism is a ball coupling type decoupling mechanism; there is a steering gear (8) fixed on the output shaft A steering wheel (7), the hub profile of the steering wheel (7) interferes with driving a control mandrel (3) in the ball coupling type unhook mechanism, so as to realize the locking and unhooking of the lifting ring (1); The ball locking type uncoupling mechanism includes: a hollow shaft (4), 2 to 6 balls (2), a spring (10), a control mandrel (3) and a semi-hollow column (6). The lifting ring (1) and the hollow shaft (4) are coaxially installed, the balls (2) move in the circumferentially uniform holes under the hollow shaft (4), the spring (10) is coaxial with the control spindle (3), and the length Two-thirds extend into the inner hole of the lower part of the control mandrel (3), and the control mandrel (3) is coaxial with the hollow shaft (4), and the hollow shaft (4) and the semi-hollow column (6) pass through three hexagonal head screw (5); there is a boss at the connecting end of the hollow shaft (4) and the steering gear (8) and the semi-hollow column (6) and the steering gear (8). 9) Connect the steering gear (8) with the hollow shaft (4) and the semi-hollow column (6), the axis of the steering gear (8) is perpendicular to the axis of the control spindle (3), and the hub profile of the steering wheel (7) conflicts Control the top surface of the mandrel (3). 2. The uncoupling device controlled by steering gear according to claim 1, characterized in that: the hub profile of the steering wheel (7) is formed by changing the radius of the hub as follows: when the radian δ0, the radius of the steering wheel (7) The minimum and unchanged position is the near rest position; the radian δ1 is the working section, when the steering wheel (7) turns counterclockwise, its radius changes from small to large, which is the compression range; on the contrary, when the steering wheel (7) turns clockwise, its radius The radius changes from large to small, which is the return stroke; when the radian δ2, the radius of the steering wheel (7) is the largest and unchanged, it is the far rest position; where δ0 and δ2 are 15 to 20 radians respectively, and δ1 is 60 to 75 radians. 3. The uncoupling device controlled by the steering gear according to claim 1, characterized in that: the cylindrical part on the suspension ring (1) is hollow, and there is a circle positioned at one end of the opening to cooperate with the ball (2). arc. 4. The uncoupling device controlled by steering gear according to claim 1, characterized in that: two-thirds of the control mandrel (3) is hollow, the rest is solid, and two-thirds of the spring (10) can be into the hollow of the control spindle (3).