Cantilever crane bracket device of overhead working truck
By designing a high-altitude work arm bracket device including a bracket body, a support slider and a stop, the safety risk of the arm bracket extending independently under a negative angle state is solved, effective support and blocking are achieved, and driving safety is improved.
Patent Information
- Application Number
- CN202421645233.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-12
AI Technical Summary
When the existing high-altitude work boom frame is placed on the bracket at a negative angle, it is prone to extend outward slowly due to the mechanism's own weight force or the tail swing of the driving turn, resulting in driving safety risks.
A boom bracket device including a bracket body, a support slider and a stopper is designed. The bracket body is provided with a bend plate and a support slider to support the telescopic arm body, and the stopper is prevented from moving the boom stop in the direction away from the working vehicle.
The support slider contacts the body surface of the telescopic arm to form friction force, which inhibits the self-extending of the arm frame; the stopper contacts the arm frame stop line to avoid damage to the bracket and bottom structure, effectively improving driving safety.
Smart Images
Figure CN222821154U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aerial work vehicles, in particular to an aerial work vehicle arm bracket device. Background Art
[0002] The boom of a telescopic boom aerial work vehicle adopts multi-section synchronous telescopic, with one boom section driven by a telescopic cylinder, and the other boom sections driven by chains or wire ropes to achieve synchronous telescopic. When the equipment is in the retracted state, the boom will be placed on the bracket at a negative angle. The existing bracket only supports the boom and has no control and fixing function. When the oil temperature difference in the telescopic cylinder is large, it is easy to form a vacuum negative pressure difference in the cylinder cavity. When the cylinder seal wears and leaks, the placed boom will automatically extend outward slowly due to the self-weight force of the mechanism or when turning and swinging, which brings safety risks to driving. Summary of the invention
[0003] The utility model aims to provide a boom bracket device for an aerial work vehicle, which prevents the boom of a telescopic boom type aerial vehicle from being placed on the bracket in a negative angle state, causing safety risks to driving due to the deadweight force of the mechanism or the boom extending slowly and autonomously when turning and swinging the tail during driving.
[0004] The technical solution of the utility model is a boom bracket device for an aerial work vehicle, comprising a bracket body, a supporting slider and a stop block, wherein the upper end of the bracket body is a bending plate, the bending plate is in a "U" shape, and the two wings of the bending plate are bending parts; a supporting slider is arranged on the bending part to lift the first telescopic arm body; the side of the bracket body close to the work vehicle is a back flat plate; a stop block is arranged on the back flat plate to prevent the first telescopic arm body stop block fixed at the lower end of the first telescopic arm body from moving in the direction away from the work vehicle.
[0005] Furthermore, the inclination angle of the bending plate is set to be consistent with the inclination angle of the first telescopic arm when it is placed in the retracted state.
[0006] Furthermore, the bending angles of the bending portions of the two wings of the bending plate are the same as the bending angles at the contact points between the first telescopic arm body and the bending portions, and the supporting sliding block is in contact with the bottom surface of the first telescopic arm body.
[0007] Furthermore, the number of supporting sliding blocks is set to two, which are symmetrically arranged on both sides of the width direction of the first telescopic arm body.
[0008] Furthermore, the stop block is in linear contact with the first telescopic arm stop block.
[0009] The beneficial effects of the utility model include a support device for an aerial work vehicle boom, a support slider is arranged on the bracket body to form a support surface for supporting the telescopic arm body; a stop block is arranged on the side of the bracket body close to the work vehicle, and the stop block prevents the first telescopic arm body stop block from moving away from the work vehicle. The bending plate inclination angle setting, the two wing bending parts bending angle setting, and the two symmetrical settings of the support slider make the support slider contact the first telescopic arm body surface, generate friction, and inhibit the telescopic arm body from extending autonomously. The stop block is in line contact with the first telescopic arm body stop block, which can avoid damage to the bracket and the bottom structure when the boom is lifted. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model.
[0011] Figure 2 This is a schematic diagram of the bracket body structure of the utility model.
[0012] Figure 3 This is a schematic diagram of the utility model in use.
[0013] Among them, 101, the bracket body, 102, the supporting slider, 103, the stop block, 104, the bending plate, 105, the back flat plate, 106, the bending part, 200, the vehicle body, 300, the telescopic arm body, 301, the first telescopic arm body stop block, 302, the first telescopic arm body. DETAILED DESCRIPTION
[0014] The following is a detailed description of the technical solution, technical problems solved and technical effects achieved by the present utility model with reference to the accompanying drawings. The specific embodiments described herein are only used to illustrate and explain the present utility model, and do not limit the present utility model.
[0015] like Figure 1 , Figure 2 , Figure 3 As shown, a boom bracket device for an aerial work vehicle includes a bracket body 101, a supporting slider 102 and a stop block 103. The bracket body 101 is detachably arranged on the vehicle body 200. A bending plate 104 is arranged on the upper end of the bracket body 101. The bending plate 104 is in a "U" shape. Bending portions 106 are arranged on both wings of the bending plate 104. The supporting slider 102 is detachably arranged on the bending portion 106 of the bending plate 104. The supporting slider 102 forms a supporting surface for obliquely supporting the first telescopic arm body 302 upward; a stop block 103 is arranged on a back flat plate 105 on one side of the bracket body 101 close to the work vehicle, which is used to contact with the first telescopic arm body stop block 301 for stopping.
[0016] Further optimization settings:
[0017] The tilt angle of the bending plate 104 is set to be consistent with the tilt angle of the first telescopic arm 302 when it is placed in the retracted state, and the contact surface between the supporting slider 102 and the first telescopic arm 302 is maximized.
[0018] The bending angles of the two wing bending parts of the bending plate are the same as the bending angles at the contact points of the first telescopic arm body, and the support slider 102 forms a surface contact with the first telescopic arm body 302. The surface contact is the contact between the support slider 102 and the first telescopic arm body 302, and the contact area is a surface.
[0019] There are two supporting sliders 102, which are symmetrically distributed on both sides of the first telescopic arm 302 in the width direction. The supporting sliders 102 have a large contact area with the first telescopic arm 302, and the first telescopic arm 302 is clamped and controlled to prevent it from deflecting.
[0020] The telescopic slider 102 forms a surface contact with the first telescopic arm 302, which not only supports the telescopic arm, but also limits the left and right shaking of the arm during driving. In addition, the support slider 102 contacts the first telescopic arm 302 to form friction resistance, thereby inhibiting the first telescopic arm 302 from extending autonomously.
[0021] The stopper 103 is in line contact with the first telescopic arm body stopper 301, and the line contact is the contact between the stopper 103 and the first telescopic arm body stopper 301, and the contact area is a line. It can prevent the first telescopic arm body stopper 301 from moving away from the working vehicle, and can also prevent the operator from directly lifting the telescopic arm body, causing the stopper 103 to contact and interfere with the first telescopic arm body stopper 301, resulting in damage to the bracket and the bottom structure.
[0022] In the present invention, the supporting slide block 102 is made of nylon material to prevent the telescopic arm from bumping against the telescopic arm due to road bumps during driving.
[0023] In the present invention, the bracket body 101 is made of metal, and the position of the bracket body 101 is adjusted according to the telescopic arm body 300, and the distance between the stop block 103 and the first telescopic arm body stop block 301 is controlled to limit the autonomous extension length of the telescopic arm body 300. The stop block 103 is welded to the bracket body 101 with metal material, or assembled to the bracket body 101 with non-metal material.
[0024] The above are only some embodiments of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A boom bracket device for an aerial work vehicle, characterized in that: The invention comprises a bracket body (101), a supporting slider (102) and a stop block (103); the upper end of the bracket body (101) is a bending plate (104), the bending plate (104) is in a "U" shape, and the two wings of the bending plate (104) are bending parts (106); a supporting slider (102) is arranged on the bending part (106) to support the first telescopic arm body (302); the side of the bracket body (101) close to the working vehicle is a back plate (105); the back plate (105) is provided with a stop block (103) to prevent the first telescopic arm body stop block (301) fixed to the lower end of the first telescopic arm body (302) from moving in a direction away from the working vehicle.
2. The boom bracket device of an aerial work vehicle according to claim 1, characterized in that: The inclination angle of the bending plate (104) is set to be consistent with the inclination angle of the first telescopic arm (302) when it is placed in the retracted state.
3. The boom bracket device of an aerial work vehicle according to claim 1, characterized in that: The bending angles of the two-wing bending portions (106) of the bending plate (104) are the same as the bending angles at the contact points between the first telescopic arm body (302) and the bending portions (106), and the supporting sliding block (102) is in contact with the bottom surface of the first telescopic arm body (302).
4. The boom bracket device of an aerial work vehicle according to claim 1, characterized in that: The supporting sliding blocks (102) are provided in two numbers and are symmetrically arranged on both sides of the first telescopic arm (302) in the width direction.
5. The boom bracket device of an aerial work vehicle according to claim 1, characterized in that: The stop block (103) is in line contact with the first telescopic arm body stop block (301).
6. The boom bracket device for an aerial work vehicle according to claim 1, characterized in that: The supporting sliding block (102) is made of nylon material.
7. The boom bracket device for an aerial work vehicle according to claim 1, characterized in that: The bracket body (101) is made of metal.