Rear door bracket device of mining dump truck and mining dump truck
By designing a triangle bracket device in a mining dump truck to support and block the rear door, the fracture and wear problems caused by material pressure and weight of the rear door are solved, and the durability of the rear door structure and transportation stability are achieved.
Patent Information
- Application Number
- CN202422469482.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-10-12
AI Technical Summary
After the mining dump truck loads materials, the rear door fixed structure is prone to breakage and wear and tear due to material pressure and its own weight, which affects transportation reliability and safety.
A mining dump truck rear door bracket device is designed, including a bracket body and reinforcement plate, forming a triangular structure and installed inside the cargo box. The bracket body plays a blocking and supporting role on the rear door to reduce the stress on the rear door.
It extends the service life of the rear door fixed structure, reduces vehicle failure rate and maintenance costs, and improves transportation reliability and safety.
Smart Images
Figure CN223059109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mining dump trucks, in particular to a rear door bracket device for a mining dump truck and a mining dump truck. Background Art
[0002] As an indispensable heavy-duty transportation equipment in mining operations, the design and performance of mining dump trucks are directly related to production efficiency and operation safety. Among these vehicles, the design of the cargo box rear door is particularly crucial. It not only undertakes the important responsibility of effectively blocking materials and preventing material leakage during transportation, but also directly affects the overall stability and safety of the vehicle. To ensure the realization of this function, the firm reliability of the cargo box rear door has become the core consideration factor in the design and manufacturing process.
[0003] Specifically, the rear door fixing mechanism of mining dump trucks usually adopts a pin connection system, which consists of high-strength pins and left and right double hinges welded on the side plates of the cargo box. This design aims to provide sufficient supporting force and flexibility to meet the operation requirements of the vehicle under complex working conditions. However, with the development of the mining dump truck market towards large tonnage and high load capacity, this traditional design is facing unprecedented challenges.
[0004] When the dump truck is loaded with heavy materials, these materials will directly act on the upper part of the vehicle's rear door, generating a huge downward pressure. This pressure not only tests the strength of the rear door material, but also poses higher requirements on the connecting components between the rear door and the cargo box. Especially the left and right double hinges and their connecting arms and pins, which need to bear the double loads from the materials and the weight of the rear door itself. With the significant increase in the size and weight of the rear door, the stress conditions of these connecting components become more complex and severe, and are extremely prone to failures such as fracture and accelerated wear.
[0005] The accelerated wear of the pins will not only increase the maintenance cost, but more importantly, it will directly affect the stability and reliability of the connecting pins and hinge seats on the left and right sides. Once these key components fail, it will seriously affect the reliability of the vehicle for transporting materials, may cause the materials to accidentally leak during transportation or the rear door cannot be opened normally, thereby affecting the smoothness of unloading materials. This situation will not only reduce the transportation efficiency and increase the operation time cost, but may also have an adverse impact on the overall operation of the mining production line, ultimately affecting the company's output value and economic benefits. Summary of the Utility Model
[0006] To solve the technical problems that after the existing mining dump truck is loaded with materials, the pressure of the materials on the rear door and the weight of the rear door itself cause the fixing structure of the rear door to be prone to fracture and accelerated wear, on the one hand, the utility model provides a rear door bracket device for a mining dump truck, and on the other hand, provides a mining dump truck.
[0007] To achieve the above object, the technical solution adopted by a rear door bracket device of a mining dump truck in this application is as follows:
[0008] A rear door bracket device of a mining dump truck includes a bracket body for installing inside the cargo box of the dump truck. The bracket body includes a baffle body, and the baffle body includes a first baffle. The first baffle is connected to a second baffle, and a bracket angle is formed between the second baffle and the first baffle.
[0009] With the above structural solution, the first baffle and the second baffle form a stable triangular structure. When the mining dump truck is loaded with materials and the rear door of the cargo box is closed, the bracket body can not only block the materials, but also support the force on the rear door, reduce the force on the rear door, extend the service life of the rear door fixing structure, reduce the vehicle failure rate, and save maintenance costs. Moreover, the welding workload of this device is small, and the manufacturing and installation costs are relatively low.
[0010] As a preferred implementation of a rear door bracket device of a mining dump truck, the second baffle is connected to the top edge of the first baffle.
[0011] With the above structural solution, the baffle body is a triangular structure, which enhances the structural strength and stability of the baffle body.
[0012] As a preferred implementation of a rear door bracket device of a mining dump truck, the first baffle and the second baffle are integrally formed.
[0013] With the above structural solution, the structural strength and stability of the baffle body are enhanced.
[0014] As a preferred implementation of a rear door bracket device of a mining dump truck, the angle of the bracket angle is less than 90°.
[0015] With the above structural solution, the bracket body can provide an upward support to the bottom of the rear door, improving the stress condition under the rear door.
[0016] As a preferred implementation of a rear door bracket device of a mining dump truck, the angle of the bracket angle is greater than or equal to 30°.
[0017] With the above structural solution, the angle of the bracket angle is relatively large, which does not affect the unloading smoothness of the dump truck.
[0018] As a preferred implementation of a rear door bracket device of a mining dump truck, the bracket body is provided with a reinforcing rib plate on the side where the second baffle and the first baffle form the bracket angle. The reinforcing rib plate is perpendicular to the first baffle and perpendicular to the second baffle.
[0019] With the above structural solution, the reinforcing rib plate can enhance the structural strength of the overall structure.
[0020] As a preferred implementation of the rear door bracket device of a mining dump truck, a plurality of reinforcing rib plates are provided, and the plurality of reinforcing rib plates are arranged in parallel along the length direction of the first baffle.
[0021] Adopting the above structural scheme can improve the structural strength of the overall structure.
[0022] The technical scheme adopted by a mining dump truck in this application is as follows:
[0023] A mining dump truck includes a cargo box, a rear door, and a rear door bracket device of a mining dump truck as described in any one of the above. The rear door bracket device of the mining dump truck is installed inside the cargo box near the rear door. The lower surface of the first baffle is connected to the inner bottom surface of the cargo box, and the bracket angle is arranged towards the rear door of the dump truck.
[0024] As a preferred implementation of a mining dump truck, the top side edge of the side of the second baffle facing the rear door abuts against the rear door.
[0025] Adopting the above structural scheme, the bracket body plays an upward supporting role on the bottom of the rear door, improving the stress condition under the rear door.
[0026] As a preferred implementation of a mining dump truck, the side edge of the first baffle facing the rear door abuts against the rear door.
[0027] The beneficial effects of the present utility model include:
[0028] 1. The welding workload of the rear door bracket device of the mining dump truck is small, and the manufacturing and installation costs are relatively low.
[0029] 2. The overall shape of the bracket body is triangular, with reliable and durable stability. The reinforcing rib plates play a supporting role on the baffle body. When the rear door of the cargo box is closed after the mining dump truck is loaded with materials, on the one hand, the bracket body plays a blocking role on the materials, which can effectively prevent material leakage and reduce the stress on the rear door; on the other hand, the bracket body plays an upward supporting role on the rear door bottom plate, improving the stress condition under the rear door; on the third hand, the bracket body can also play a buffering role when the materials impact the rear door. This application greatly reduces the stress on the rear door fixing structure from the above three aspects, thereby prolonging the service life of the rear door fixing structure, reducing the vehicle failure rate, and saving maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0031] Figure 1 This is a schematic side view of a rear door bracket device for a mining dump truck in a specific embodiment of the present utility model;
[0032] Figure 2 This is a schematic three-dimensional view of a rear door bracket device for a mining dump truck in a specific embodiment of the present utility model;
[0033] Figure 3 This is a schematic three-dimensional view of a rear door bracket device for a mining dump truck after installation in a specific embodiment of the present utility model;
[0034] Figure 4 This is a schematic side view of a rear door bracket device for a mining dump truck after installation in a specific embodiment of the present utility model.
[0035] List of components and reference numerals:
[0036] 1, cargo box; 2, rear door; 3, bracket body; 31, baffle body; 311, first baffle; 312, second baffle; 32, stiffening rib plate. Specific embodiment
[0037] To make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in this specific embodiment. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0038] This embodiment provides a mining dump truck, which includes a cargo box 1, a rear door 2, and a Figure 1-2 rear door bracket device for a mining dump truck as shown. Referring to Figure 3-4 , the rear door bracket device for a mining dump truck is installed inside the cargo box 1 near the rear door 2, and the rear door bracket device for a mining dump truck abuts against the rear door 2.
[0039] The rear door bracket device of the mining dump truck includes a bracket body 3 and a number of reinforcing rib plates 32. The bracket body 3 includes a baffle body 31. The baffle body 31 includes a first baffle 311. The lower surface of the first baffle 311 is welded to the inner bottom surface of the cargo box 1. The edge of the upper surface of the first baffle 311 is connected to a second baffle 312. The first baffle 311 and the second baffle 312 are integrally formed. A bracket angle is formed between the second baffle 312 and the first baffle 311. The bracket angle is set towards the rear door 2 of the dump truck. The angle of the bracket angle is less than 90° and greater than or equal to 30°, such as 30°, 35°, 45°, 60°, etc. The side of the first baffle 311 facing the rear door 2 abuts against the rear door 2. The top side of the side of the second baffle 312 facing the rear door 2 abuts against the rear door 2.
[0040] A number of reinforcing rib plates 32 are located on the side of the bracket body 3 where the bracket angle is formed between the second baffle 312 and the first baffle 311. The number of reinforcing rib plates 32 are arranged in parallel along the length direction of the first baffle 311. Each reinforcing rib plate 32 is perpendicular to the first baffle 311. Each reinforcing rib plate 32 is perpendicular to the second baffle 312. The side of each reinforcing rib plate 32 facing the rear door 2 abuts against the rear door 2.
[0041] The working principle of this embodiment is as follows:
[0042] After welding the baffle body 31 and a number of reinforcing rib plates 32 together, make the bracket angle face the rear door 2 of the dump truck, and perform tack welding after the rear door 2 is closed. When welding, control the gap between the first baffle 311 and the inner bottom surface of the cargo box 1, and make the side of the first baffle 311 facing the rear door 2 abut against the rear door 2, and the top side of the side of the second baffle 312 facing the rear door 2 abut against the rear door 2. The welding workload is small, and the manufacturing and installation costs are relatively low.
[0043] The overall shape of the bracket body 3 is triangular, with reliable and durable stability. The reinforcing rib plates 32 play a supporting role for the baffle body 31. When the mining dump truck is loaded with materials and the rear door 2 of the cargo box 1 is closed, on the one hand, the bracket body 3 plays a role in blocking the materials, which can effectively prevent material leakage and reduce the stress on the rear door 2; on the other hand, the bracket body 3 plays an upward supporting role for the bottom plate of the rear door 2, improving the stress condition under the rear door 2; on the third hand, the bracket body 3 can also play a buffering role when the materials impact the rear door 2. This embodiment greatly reduces the stress on the fixing structure of the rear door 2 from the above three aspects, thereby prolonging the service life of the fixing structure of the rear door 2, reducing the vehicle failure rate, and saving maintenance costs.
[0044] The bending angle of the baffle body 31 in this embodiment is large, which does not affect the smoothness of unloading of the dump truck.
[0045] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.
Claims
1. A rear door bracket device for a mining dump truck, comprising a bracket body (3), the bracket body (3) being used for installation inside the cargo box (1) of the dump truck, characterized in that, The bracket body (3) includes a baffle body (31), and the baffle body (31) includes a first baffle (311). The first baffle (311) is connected to a second baffle (312), and a bracket angle is formed between the second baffle (312) and the first baffle (311).
2. The rear door bracket device of a mining dump truck according to claim 1, characterized in that The second baffle (312) is connected to the edge of the first baffle (311).
3. The rear door bracket device of a mining dump truck according to claim 2, characterized in that, The first baffle (311) and the second baffle (312) are integrally formed.
4. The rear door bracket device of a mining dump truck according to claim 1, characterized in that, The angle of the bracket angle is less than 90°.
5. The rear door bracket device of a mining dump truck according to claim 4, characterized in that, The angle of the bracket angle is greater than or equal to 30°.
6. The rear door bracket device of a mining dump truck according to claim 1, characterized in that, On the side where the bracket angle is formed between the second baffle (312) and the first baffle (311) of the bracket body (3), there is a reinforcing rib plate (32). The reinforcing rib plate (32) is perpendicularly arranged with respect to the first baffle (311) and is perpendicularly arranged with respect to the second baffle (312).
7. The rear door bracket device of a mining dump truck according to claim 6, characterized in that, There are several reinforcing rib plates (32), and the several reinforcing rib plates (32) are arranged in parallel along the length direction of the first baffle (311).
8. A mining dump truck, characterized in that, It includes a cargo box (1), a rear door (2), and a rear door bracket device for a mining dump truck as described in any one of claims 1 - 7. The rear door bracket device for a mining dump truck is installed inside the cargo box (1) near the rear door (2). The lower surface of the first baffle (311) is connected to the inner bottom surface of the cargo box (1), and the bracket angle is arranged towards the rear door (2) of the dump truck.
9. The articulated dump truck according to claim 8, characterized in that, The top side edge of the side of the second baffle (312) facing the rear door (2) abuts against the rear door (2).
10. A mining dump truck according to claim 9, characterized in that, The side edge of the first baffle (311) facing the rear door (2) abuts against the rear door (2).