CN219194303U

CN219194303U - Rotation stopping device for cantilever type vehicle assembly suspension arm

Info

Publication number: CN219194303U
Application number: CN202223585153.6U
Authority: CN
Inventors: 张香春; 张严
Original assignee: Jiangsu Songke Electric Vehicle Technology Co ltd
Current assignee: Jiangsu Songke Electric Vehicle Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-16
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a rotation stopping device of a cantilever type vehicle assembly suspension arm, which comprises a cantilever and an upright post; the upper end of the upright post is rotatably provided with a rotary post through a bearing, and the root of the cantilever is fixed at the upper end of the rotary post; the bottom of the rotary column is provided with a rotary stopping groove, a rotary stopping head is arranged in the rotary stopping groove coaxially, and the rotary stopping column further comprises an elastic part which elastically pushes the rotary stopping head upwards, so that a rotary stopping surface outside the rotary stopping head tightly pushes the inner wall of the rotary stopping groove, and the rotary column is restrained from rotating; when the cantilever needs to rotate around the upright post, the rotation stopping head is pulled downwards by the traction rope to overcome the elasticity of the spring and move downwards, so that the rotation stopping head is separated from the rotation stopping groove, and the rotation stopping state is released; and then the cantilever can be controlled to rotate around the upright post only by controlling the output of the rotary driving motor.

Description

Rotation stopping device for cantilever type vehicle assembly suspension arm

Technical Field

The utility model belongs to the field of workshop hoisting.

Background

The device for temporarily hoisting and assembling in the vehicle assembly shop generally adopts a cantilever type suspension arm, and in order to improve the operation flexibility of the cantilever type suspension arm, the cantilever is designed to be a structure capable of rotating around an upright post, so that the device not only has a basic hoisting function, but also has the function of translating and transferring a hoisted workpiece or an assembly structure;

although the structure of the cantilever capable of rotating around the upright column improves the flexibility, the stability is reduced, especially in the non-transferring process, so that it is necessary to design a structure capable of effectively inhibiting the cantilever from rotating around the upright column when the cantilever is required to enter a stable state.

Disclosure of Invention

The utility model aims to: in order to overcome the defects in the prior art, the utility model provides a rotation stopping device for a cantilever type vehicle assembly suspension arm, which can play a role in inhibiting the rotation movement of the suspension arm around an upright post.

The technical scheme is as follows: in order to achieve the above purpose, the rotation stopping device of the cantilever type vehicle assembly suspension arm comprises a cantilever and a stand column; the upper end of the upright post is rotatably provided with a rotary post through a bearing, and the root of the cantilever is fixed at the upper end of the rotary post; the bottom of the rotary column is provided with a rotation stopping groove, a rotation stopping head is arranged in the rotation stopping groove in a coaxial way, and the rotary column further comprises an elastic part which elastically pushes the rotation stopping head upwards, so that a rotation stopping surface outside the rotation stopping head tightly pushes the inner wall of the rotation stopping groove, and the rotation of the rotary column is restrained.

Further, the rotation stopping groove is a conical groove with a thin upper part and a thick lower part; the rotation stopping head is a conical annular wall which is matched with the rotation stopping groove.

Further, the anti-rotation device also comprises a traction rope which can actively draw the anti-rotation head downwards, and the anti-rotation head is separated from the anti-rotation groove after the traction rope draws the anti-rotation head downwards.

Further, a fixed platform is fixed on the inner wall of the cylinder body of the upright post; a lifting ring is arranged above the fixed platform and is fixedly connected with the lower end of the rotation stopping head; the elastic part comprises a spring between the lifting ring and the fixed platform; the spring exerts an upward elastic pressing force on the lifting ring.

Further, a pair of downwardly extending guide posts are fixedly connected to the lifting ring, and each guide post movably penetrates through a guide hole on the fixed platform.

Further, a rope winding drum is arranged in the drum body of the upright post, the lower end of the traction rope is fixed on the rope winding drum, and the active rotation of the rope winding drum enables the lower end of the traction rope to be wound on the rope winding drum.

The beneficial effects are that: when the cantilever does not need to rotate around the upright post, the outer cone rotation stopping surface of the rotation stopping head is tightly pressed against the inner wall of the rotation stopping groove under the elastic pressing force of the spring; the static friction force between the outer cone rotation stopping surface of the rotation stopping head and the inner wall of the rotation stopping groove prevents the relative rotation between the rotation stopping head and the rotary column, and the rotation stopping head cannot rotate, so that the rotation of the rotary column is restrained;

when the cantilever needs to rotate around the upright post, the rotation stopping head is pulled downwards by the traction rope to overcome the elasticity of the spring and move downwards, so that the rotation stopping head is separated from the rotation stopping groove, and the rotation stopping state is released; and then the cantilever can be controlled to rotate around the upright post only by controlling the output of the rotary driving motor.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the device;

FIG. 2 is an enlarged schematic view of the portion 20 of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a schematic view of the disassembly based on fig. 3.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

The cantilever-type vehicle shown in fig. 1 to 4 is equipped with a rotation stopping device of a boom, as shown in fig. 1 and 2; the electric hoist comprises a cantilever 17 and an upright post 7, wherein an electric hoist can be mounted on the cantilever 17 and is used for hoisting vehicle parts or assembly structures in an assembly workshop; the inner wall of the upper end of the upright post 7 is rotatably provided with a rotary post 16 through a bearing 14, and the cantilever root 17.1 of the cantilever 17 is fixed at the upper end of the rotary post 16; in order to realize the rotation and electromotive of the cantilever 17 around the upright post 7, as shown in fig. 3, a rotary gear 1 is integrally arranged on a rotary post 16 in a coaxial way, a rotary driving motor 4 is fixedly arranged on one side of the upright post 7, an output end of the rotary driving motor 4 is in driving connection with an output gear 2, and the output gear 2 is meshed with the rotary gear 1; when the cantilever 17 is required to rotate around the upright post 7, only the output of the rotary driving motor 4 needs to be controlled.

The core structure of this scheme is as follows:

the bottom of the rotary column 16 is provided with a rotary stopping groove 15, a rotary stopping head 19 is coaxially arranged in the rotary stopping groove 15, and the rotary stopping column further comprises an elastic component which elastically pushes the rotary stopping head 19 upwards, so that a rotary stopping surface outside the rotary stopping head 19 tightly pushes the inner wall of the rotary stopping groove 15, and the rotary column 16 is restrained from rotating by static friction; in order to enhance the anti-rotation effect of the friction force, in a specific structure, as shown in fig. 3 and 4, the anti-rotation groove 15 is a conical groove with a thin upper part and a thick lower part; the rotation stop 19 is a conical annular wall corresponding to the rotation stop groove 15.

The upright post 7 is a cylinder; the upright post 7 is a cylinder inner wall and is fixedly provided with an annular fixed platform 6; a lifting ring 3 is arranged on the upper coaxial center of the fixed platform 6, and the lifting ring 3 is fixedly connected to the lower end of the rotation stopping head 19; the elastic part comprises a spring 13 between the lifting ring 3 and the fixed platform 6; the spring 13 forms upward elastic pushing force on the lifting ring 3, so that the outer conical rotation stopping surface of the rotation stopping head 19 is tightly attached to the inner wall of the rotation stopping groove 15; a pair of downwardly extending guide posts 8 are fixedly connected to the lifting ring 3, and each guide post 8 movably passes through the guide hole 5 on the fixed platform 6, so that the rotation stop head 19 cannot rotate but can move up and down.

The traction rope 12 can actively pull the rotation stopping head 19 downwards, the upper end of the traction rope 12 is fixedly connected with the top wall 18 of the rotation stopping head 19, and after the traction rope 12 pulls the rotation stopping head 19 downwards, the rotation stopping head 19 is separated from the rotation stopping groove 15; a rope winding drum 11 is arranged in the drum body of the upright post 7, the lower end of a traction rope 12 is fixed on the rope winding drum 11, the lower end of the traction rope 12 is wound on the rope winding drum 11 by the active rotation of the rope winding drum 11, so that the traction rope 12 is tightened, a rope winding drum driving motor 10 is fixedly arranged in the drum body of the upright post 7 through a bracket 9, and the rope winding drum driving motor 10 can drive the rope winding drum 11 to rotate.

When the cantilever 17 does not need to rotate around the column 7, in order to avoid the cantilever 17 from shaking, the cantilever 17 needs to enter a stable state, so that the rotation of the rotary column 16 is restrained, and the following operations are performed:

the rope drum driving motor 10 is controlled to be powered off, the rope drum 11 does not output torque, and the traction rope 12 enters a loose state; at this time, under the elastic pushing force of the spring 13, the outer conical rotation stopping surface of the rotation stopping head 19 is tightly pushed against and attached to the inner wall of the rotation stopping groove 15; the static friction force between the outer cone rotation stopping surface of the rotation stopping head 19 and the inner wall of the rotation stopping groove 15 prevents the relative rotation between the rotation stopping head 19 and the rotation column 16, and the rotation stopping head 19 cannot rotate, so that the rotation of the rotation column 16 is restrained; in order to enhance the anti-rotation effect, the outer cone anti-rotation surface of the anti-rotation head 19 can be provided with an anti-slip surface made of anti-slip materials or provided with a certain anti-slip pattern and other structures; this can also be achieved by increasing the spring force of the spring 13.

When the cantilever 17 needs to rotate around the upright post 7, the rotation stopping state needs to be released, and the specific operation is as follows:

the rope drum driving motor 10 is controlled to drive the rope drum 11, so that the active forced rotation of the rope drum 11 enables the lower end of the traction rope 12 to be wound on the rope drum 11, thereby tightening the traction rope 12 and gradually shortening the traction rope, further enabling the rotation stopping head 19 to downwards displace against the elasticity of the spring 13 under the downward pulling of the traction rope 12, and enabling the rotation stopping head 19 to be separated from the rotation stopping groove 15, and releasing the rotation stopping state; the cantilever 17 is then controlled to rotate about the upright 7 by controlling the output of the rotary drive motor 4.

The foregoing is only a preferred embodiment of the utility model, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims

1. The utility model provides a cantilever type vehicle assembly davit's rotation stopping device which characterized in that: comprises a cantilever (17) and a column (7); the upper end of the upright post (7) is rotatably provided with a rotary post (16) through a bearing (14), and the cantilever root (17.1) of the cantilever (17) is fixed at the upper end of the rotary post (16); the bottom of the rotary column (16) is provided with a rotary stopping groove (15), a rotary stopping head (19) is arranged in the rotary stopping groove (15) coaxially, and the rotary stopping column further comprises an elastic component which elastically presses the rotary stopping head (19) upwards, so that a rotary stopping surface outside the rotary stopping head (19) tightly presses the inner wall of the rotary stopping groove (15), and the rotary column (16) is restrained from rotating.

2. The boom-mounted vehicle attachment boom rotation stopping device of claim 1, wherein: the rotation stopping groove (15) is a conical groove with a thin upper part and a thick lower part; the rotation stopping head (19) is a conical annular wall which is matched with the rotation stopping groove (15).

3. The anti-rotation device of a boom-mounted vehicle mounting boom of claim 2, wherein: the anti-rotation device also comprises a traction rope (12) which can actively pull the anti-rotation head (19) downwards, and after the traction rope (12) pulls the anti-rotation head (19) downwards, the anti-rotation head (19) is separated from the anti-rotation groove (15).

4. A rotation stopping device for a boom-mounted vehicle mounting boom as defined in claim 3, wherein: a fixed platform (6) is fixed on the inner wall of the cylinder body of the upright post (7); a lifting ring (3) is arranged above the fixed platform (6), and the lifting ring (3) is fixedly connected with the lower end of the rotation stopping head (19); the elastic part comprises a spring (13) between the lifting ring (3) and the fixed platform (6); the spring (13) forms upward elastic pressing force on the lifting ring (3).

5. The boom-mounted vehicle attachment boom rotation stopping device of claim 4, wherein: a pair of downward extending guide posts (8) are fixedly connected to the lifting ring (3), and each guide post (8) movably penetrates through a guide hole (5) on the fixed platform (6).

6. The boom-mounted vehicle attachment boom rotation stopping device of claim 4, wherein: a rope winding drum (11) is arranged in the drum body of the upright post (7), the lower end of the traction rope (12) is fixed on the rope winding drum (11), and the lower end of the traction rope (12) is wound on the rope winding drum (11) by the active rotation of the rope winding drum (11).