Limiting assembly of drill jumbo cab lifting structure
By designing an L-shaped limit block on the drilling rig cab lifting device to contact the roller, the problem of lack of limit in traditional devices is solved, safety and stability are improved, costs are reduced and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202422603589.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-10-28
AI Technical Summary
The cab lifting device of a traditional drilling rig lacks a limit device when it descends to the extreme position, resulting in excessive compression of mechanical components, increasing the risk of failure and affecting the safety and durability of the equipment.
An L-shaped limit block is designed to contact the roller under the scissor lift device and is fixed to the frame by welding. An anti-slip layer is provided on the surface of the limit block to improve stability and limit the movement of the lift device.
Effectively save space, reduce manufacturing and maintenance costs, improve safety and stability, extend equipment service life, and ensure long-term stable operation of the equipment.
Smart Images
Figure CN223457022U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engineering vehicle cab lifting device technical field especially relates to a kind of limit components of jumbo cab lifting structure. BACKGROUND
[0002] Jumbo is a kind of heavy machinery equipment used in mine or construction site, mainly used for rock drilling and chisel. It is usually equipped with powerful drilling device and scissor lifting system, so that cab can be lifted between different heights as needed, improve the vision and operation efficiency of operator. The equipment also has stable chassis and flexible moving system to cope with various complex terrains and working conditions.
[0003] Jumbo cab lifting structure usually includes a scissor lifting device, which is driven by hydraulic system, can make cab lift in vertical direction.
[0004] Traditional cab lifting device lacks limiting device when descending to limit position, which can cause excessive compression or damage mechanical parts, and this defect can increase the risk of failure, affect the safety and durability of equipment. SUMMARY
[0005] In order to make up for the above shortcomings, the utility model provides a kind of limit components of jumbo cab lifting structure, to improve the problem that the lifting device in prior art lacks limiting device when descending to limit position, which can cause excessive compression or damage mechanical parts, and this defect can increase the risk of failure, affect the safety and durability of equipment.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of limit components of jumbo cab lifting structure, including frame, the top of the frame is provided with scissor lifting device, the top of the frame is provided with limiting block, the limiting block is in contact with the roller below scissor lifting device, the limiting block is L type.
[0007] Further, one end of the limiting block outside is in contact with the roller below scissor lifting device, and one end of the limiting block inside is in contact with the top of the frame.
[0008] Further, the scissor lifting device includes a plurality of scissor arms, and the scissor arms drive the cab lifting through the hydraulic system.
[0009] Further, the connecting mode of the limiting block and the frame is welding.
[0010] Further, the top of the scissor lifting device is provided with cab.
[0011] Further, the surface of the limiting block is provided with an anti-skid layer for improving stability when contacting the roller.
[0012] The utility model has the advantages of the following:
[0013] 1. The limiting block design can effectively save space, and due to the simple structure, the welding and installation process is relatively easy, thereby reducing the manufacturing and maintenance costs.
[0014] 2. The limiting block restricts the movement of the lifting device through surface-to-surface contact, which can significantly improve its safety and stability. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A perspective view of a limiting assembly of a jumbo cab lifting structure is provided.
[0016] Figure 2 For Figure 1 A zoomed-in view of the middle A;
[0017] Figure 3 A limiting block structure diagram of a limiting assembly of a jumbo cab lifting structure is provided.
[0018] LEGEND:
[0019] 1. Cab; 2. Scissor lifting device; 3. Limiting block; 4. Frame. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0021] Refer to Figure 1 , Figure 2 and Figure 3The utility model provides a kind of embodiment of a rock drilling jumbo cab lifting structure's limiting component, including frame 4, the top of frame 4 is provided with scissor lifting device 2, the top of frame 4 is provided with limiting block 3, limiting block 3 is contacted with the roller below scissor lifting device 2, limiting block 3 is L type, the outside of one end of limiting block 3 is contacted with the roller below scissor lifting device 2, the inside of one end of limiting block 3 is contacted with the top of frame 4.
[0022] Limiting block 3 is welded with frame 4 by welding form, when scissor mechanism is in the limit position of falling, roller is contacted with limiting block 3 surface, reach the purpose of limiting, the design of limiting block 3 can effectively save space, and because structure is simple, welding and installation process are relatively easy, to reduce manufacturing and maintenance cost, the L type structure design of limiting block 3 makes it can effectively prevent scissor lifting device 2 from exceeding predetermined lifting range during lifting.
[0023] Refer to Figure 1 、 Figure 2 And Figure 3 , scissor lifting device 2 includes multiple scissor arms, scissor arms are driven cab 1 lifting by hydraulic system, the connecting mode of limiting block 3 and frame 4 is welding, the top of scissor lifting device 2 is provided with cab 1, the surface of limiting block 3 is equipped with antiskid layer, and the antiskid layer is used to improve stability when being contacted with roller.
[0024] Scissor lifting device 2 is lifted cab 1 by hydraulic system, limiting block 3 is fixed on frame 4 by welding, limiting block 3 surface is provided with antiskid layer, and the antiskid layer is used to improve stability when being contacted with roller.
[0025] Working principle: limiting block 3 is welded with frame 4 by welding form, when scissor lifting device 2 is in the limit position of falling, roller is contacted with limiting block 3 surface, reach the purpose of limiting, the design of limiting block 3 can effectively save space, and because structure is simple, welding and installation process are relatively easy, to reduce manufacturing and maintenance cost, in addition, the convenient assembly and replacement characteristics of limiting block 3 make that later structural maintenance is more efficient, ensure that equipment long-term stable operation, limiting block 3 is limited scissor lifting device 2 movement by surface and surface contact, this design can significantly improve its security and stability. Because the contact surface of limiting block 3 is larger, this contact mode can effectively disperse the pressure exerted on limiting block 3, reduce local stress concentration, to improve overall stability, help to improve the security of equipment and prolong service life.
[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A limiting assembly of a jumbo cab lifting structure, comprising a frame (4), characterized in that: The top of the frame (4) is provided with a scissor lifting device (2), the top of the frame (4) is provided with a limiting block (3), the limiting block (3) is in contact with the rollers below the scissor lifting device (2), and the limiting block (3) is L-shaped; One end of the limiting block (3) is in contact with the rollers below the scissor lifting device (2) on the outer side, and the other end of the limiting block (3) is in contact with the top of the frame (4) on the inner side; The surface of the limiting block (3) is provided with an anti-skid layer, and the anti-skid layer is used to improve the stability when contacting with the rollers.
2. The position-limiting assembly of the drill jumbo cabin lifting structure according to claim 1, characterized in that: The scissor lifting device (2) comprises a plurality of scissor arms, and the scissor arms drive the cab (1) to lift through a hydraulic system.
3. The position-limiting assembly of the drill jumbo cabin lifting structure according to claim 1, characterized in that: The connecting mode of the limiting block (3) and the frame (4) is welding.
4. The position-limiting assembly of the drill jumbo cabin lifting structure according to claim 1, characterized in that: The top of the scissor lifting device (2) is provided with a cab (1).