Mine truck electric accessory mounting structure and mine truck

Abstract

The utility model relates to the field of vehicles which are mainly used for freight and are convenient to load, collect or unload after being modified, in particular to an electric accessory mounting structure of a mine truck and the mine truck. The mine truck electric accessory installation structure comprises an electric accessory and an installation support, the electric accessory comprises an electric driving device and a pump installed at one end of the electric driving device, a switching supporting table is arranged on the installation support, and the switching supporting table and the electric driving device are fixedly connected to form a rigid body as a whole. The multiple sets of damping assemblies are distributed between the switching supporting table and the mounting support to share vibration of the electric accessories together, so that the situation that a single damping assembly is damaged due to concentrated stress is prevented. By more reasonably arranging the number of the damping assemblies and the position distribution of the damping assemblies, the vibration of the electric accessory is shared by the multiple sets of damping assemblies so as to prevent the single damping assembly from being damaged due to concentrated stress; therefore, the problem of low operation efficiency of the mine truck caused by short service life of the shock pad of the electric accessory of the existing mine truck can be solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicles mainly used for freight transportation and vehicles modified for easy loading, collection or unloading, and in particular to an electrical accessory installation structure for mining trucks and mining trucks. Background Technology

[0002] With the accelerated development of green mine construction, mining equipment is steadily moving towards electrification and larger sizes. Currently, electric mining trucks generally have tonnages of 90 tons, 105 tons, 130 tons, 180 tons, and even over 200 tons. For example, the specification of the invention patent application with publication number CN118833128A and publication date of October 25, 2024, discloses a wide-body dump truck with direct drive by a high-voltage motor. This dump truck includes a non-powered chassis, a power supply system, a drive system, a thermal management system, an auxiliary electrical system, a hydraulic system, and a body and control system. The power supply system is connected to the drive system and electrical accessories, such as an electric air compressor and an electric steering pump, through a controller. The electric air compressor provides compressed air for the normal operation of the vehicle, and the electric steering pump provides the hydraulic energy required for steering assistance, playing an indispensable role in ensuring the normal operation of the vehicle.

[0003] As the tonnage of mining trucks continues to increase, the power and displacement of their compatible electrical accessories are also rising accordingly. For example, the rated power of air compressors has reached 5KW and the displacement has reached over 480L / min, while the maximum power of steering oil pumps has reached 40KW and the displacement has reached over 100L / min. This results in a significant increase in vibration intensity and noise. Coupled with the harsh working conditions of mining trucks, such as long operating hours and high vibration intensity, traditional installation methods for vibration damping pads often lead to high vibration and noise levels and short service life. In practice, some mining areas have vibration damping pads with a service life of less than two months, greatly reducing the operating efficiency of mining trucks. Utility Model Content

[0004] The purpose of this utility model is to provide an installation structure for electrical accessories of mining trucks, so as to solve the problem of low operating efficiency of mining trucks caused by the short service life of shock-absorbing pads in existing electrical accessories.

[0005] Meanwhile, the purpose of this utility model is also to provide a mining vehicle that uses the above-mentioned electrical accessory mounting structure.

[0006] To solve the above problems, the present invention provides a mining truck electrical accessory installation structure with the following technical solution: The mining truck electrical accessory installation structure includes an electrical accessory and a mounting bracket. The electrical accessory includes an electric drive device and a pump installed at one axial end of the electric drive device. A transition support platform is provided on the mounting bracket. The transition support platform is fixedly connected to the electric drive device to form a rigid body. Multiple sets of shock-absorbing components are distributed between the transition support platform and the mounting bracket to share the vibration of the electrical accessory, preventing damage to individual shock-absorbing components due to concentrated force.

[0007] Furthermore, one end of the adapter support extends below the pump, and the shock-absorbing assembly is provided at that end.

[0008] Furthermore, the damping components are disposed on both radial sides of the electrical accessory and are spaced apart along the axial direction of the electrical accessory.

[0009] Furthermore, the adapter support platform and the mounting bracket are connected by connecting bolts, and each of the shock-absorbing components includes upper and lower shock-absorbing pads located on the upper and lower sides of the adapter support platform, with the upper and lower shock-absorbing pads fitted onto the corresponding connecting bolts.

[0010] Furthermore, the transition support platform is a plate-type support platform.

[0011] Beneficial Effects: The technical solution of the mining truck electrical accessory installation structure of this utility model is an improved invention. Specifically, by setting a transition support platform between the mounting bracket and the electrical accessory in the mining truck electrical accessory installation structure, and connecting the transition support platform to the electric drive device to form a rigid body, the arrangement position of the shock absorber components is no longer restricted by the connection points on the electric drive device. Therefore, the number and position distribution of the shock absorber components can be arranged more rationally. By having multiple sets of shock absorber components share the vibration of the electrical accessory, the damage of a single shock absorber component due to concentrated force can be prevented. This solves the problem of low operating efficiency of mining trucks caused by the short service life of the shock absorber pads in existing mining truck electrical accessories.

[0012] The mining car of this utility model adopts the following technical solution:

[0013] A mining vehicle includes a vehicle body, electrical accessories, and a mounting bracket for mounting the electrical accessories. The electrical accessories include an electric drive device and a pump mounted on one axial end of the electric drive device. A transition support platform is provided on the mounting bracket. The transition support platform is fixedly connected to the electric drive device to form a rigid body. Multiple sets of shock-absorbing components are distributed between the transition support platform and the mounting bracket to share the vibration of the electrical accessories and prevent individual shock-absorbing components from being damaged due to concentrated force.

[0014] Furthermore, one end of the adapter support extends below the pump, and the shock-absorbing assembly is provided at that end.

[0015] Furthermore, the damping components are disposed on both radial sides of the electrical accessory and are spaced apart along the axial direction of the electrical accessory.

[0016] Furthermore, the adapter support platform and the mounting bracket are connected by bolts, and each of the shock-absorbing components includes upper and lower shock-absorbing pads located on the upper and lower sides of the adapter support platform.

[0017] Furthermore, the transition support platform is a plate-type support platform.

[0018] Beneficial Effects: The technical solution of this utility model for a mining truck is an improved invention. Specifically, the mining truck has a transition support platform between its electrical accessories and the mounting brackets of the electrical accessories. After connecting the transition support platform to the electric drive device of the electrical accessories to form a rigid body, the arrangement of the shock-absorbing components is no longer limited by the connection points on the electric drive device. Therefore, the number and position distribution of the shock-absorbing components can be arranged more rationally. By having multiple sets of shock-absorbing components share the vibration of the electrical accessories, the vibration of a single shock-absorbing component is prevented from being damaged due to concentrated force. This solves the problem of low operating efficiency of mining trucks caused by the short service life of the shock-absorbing pads of existing mining truck electrical accessories. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the existing electrical accessory installation structure for mining trucks;

[0020] Figure 2 This is a schematic diagram of the installation structure of the electrical accessories for mining vehicles according to this utility model.

[0021] Figure 3 This is a structural diagram of a type of transition support platform;

[0022] Figure 4 This is a schematic diagram of another structure of the transition support platform;

[0023] Figure 5 This is a schematic diagram of the third type of transition support platform.

[0024] Figure 1 In the middle: 101, electric drive unit; 102, pump; 103, mounting bracket; 104, shock absorber.

[0025] Figure 2-5 In the middle: 1. Electrical accessories; 2. Adapter support platform; 21. Through hole; 3. Mounting bracket; 4. Vibration damping components; 41. Upper vibration damping pad; 42. Lower vibration damping pad; 5. Fasteners; 51. Bolt; 52. Nut; 6. Washer. Detailed Implementation

[0026] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0027] Mining truck electrical accessories are generally characterized by their large size and heavy weight. These accessories include power steering accessories and air supply accessories. Both have similar structures, including an electric drive unit 101 and a pump 102. In the power steering accessory, the electric drive unit 101 is an electric steering motor, and the pump 102 is an oil pump; in the air supply accessory, the electric drive unit 101 is an air compressor, and the pump 102 is an air pump. As a typical installation method, such as... Figure 1 As shown, the pump 102 of the electric accessory is integrated into one axial end of the electric drive unit 101. Its housing is directly fixed to the housing of the electric drive unit 101, using the housing of the electric drive unit 101 as the mounting base, and is generally in a suspended state. The electric drive unit 101 is fixedly connected to the corresponding mounting bracket 103 through the connection hole provided on its base. A shock-absorbing pad 104 is provided at the fixed position of the base and the mounting bracket 103 to dampen the vibration of the electric accessory during operation. However, in actual use, the shock-absorbing pad 104 often suffers damage. In some application scenarios, the lifespan of the shock-absorbing pad 104 is only about two months. Each replacement of the shock-absorbing pad 104 means the mine truck stops operating, which greatly reduces the operating efficiency of the mine truck.

[0028] After repeated research and summarization to address the above problems, it was found that the main vibration source of the electrical accessories is located at the pump 102. Since the pump 102 is suspended, the suspension of the pump 102 causes the electrical accessories to form a lever-like structure. The resulting vibrations continuously impact the shock-absorbing pad 104 between the electric drive device 101 and the mounting bracket 103, leading to damage to the shock-absorbing pad 104 and significant operating noise. Based on these research findings, this invention proposes a technical solution for the installation structure of electrical accessories for mining trucks and for mining trucks, based on the fundamental inventive concept of "redesigning the number and location of shock-absorbing structures so that each structure can bear the force evenly, share the vibration impact, and increase the overall area of ​​action on the electrical accessories, thus weakening the lever effect."

[0029] Based on the above inventive concept, the basic implementation method of the mining truck electrical accessory installation structure of this utility model is as follows:

[0030] The electric accessory mounting structure of the mining truck includes an electric accessory 1 and a mounting bracket 3. The electric accessory 1 includes an electric drive device and a pump installed at one axial end of the electric drive device. The mounting bracket 3 is provided with a transition support platform 2. The transition support platform 2 is fixedly connected to the electric drive device to form a rigid body. Multiple sets of shock-absorbing components 4 are distributed between the transition support platform 2 and the mounting bracket 3 to share the vibration of the electric accessory and prevent individual shock-absorbing components 4 from being damaged due to concentrated force.

[0031] Specifically, please refer to Figure 2 The electrical accessory mounting structure for mining trucks of this utility model includes a transfer support platform 2, a mounting bracket 3, multiple shock-absorbing components 4, and multiple fasteners 5. An electrical accessory 1 is fixedly mounted on one side of the transfer support platform 2, forming a rigidly connected whole with the electrical accessory 1 and the transfer support platform 2, for example, by fasteners such as bolts and screws. The side of the transfer support platform 2 facing away from the electrical accessory 1 is fixedly connected to the mounting bracket 3 via multiple shock-absorbing components 4 and multiple fasteners 5. The mounting bracket 3 is used to mount the electrical accessory 1 to the vehicle frame or is part of the vehicle frame.

[0032] The mounting bracket 3 and the adapter support platform 2 are provided with multiple sets of damping points corresponding to their vertical positions. Each damping point on both the mounting bracket 3 and the adapter support platform 2 has a through hole 21 for the passage of the fastener 5. Each damping component 4 includes an upper damping pad 41 and a lower damping pad 42. The fastener 5 includes a bolt 51 and a nut 52. The bolt 51 passes sequentially through the adapter support platform 2, the upper damping pad 41, the mounting bracket 3, and the lower damping pad 42. Specifically, the nut 51 and the nut 52 respectively abut against and press against the lower damping pad 42 and the adapter support platform 2. In this embodiment, as a preferred example, the damping component 4 is made of wear-resistant, high- and low-temperature resistant, and elastic materials such as rubber, silicone, and polyurethane, capable of adapting to extreme conditions. Figure 1 As shown, in some cases, the damping assembly 4 may also include a washer 6. There may be one washer, which is disposed between the upper damping pad 541 and the transition support platform; there may also be two washeres, which are disposed between the upper damping pad 41 and the transition support platform 2 and between the lower damping pad 42 and the transition support platform 2, respectively.

[0033] The structure of the adapter support platform 2 should be suitable for increasing and / or rearranging the damping points, facilitating adjustments to the number and distribution of damping components 4 between the electrical accessory 1 and the mounting bracket 3 as needed. This ensures that each damping component is subjected to uniform force and provides axial support for the electrical accessory (support direction is vertical). For example, the adapter support platform 2 can have 4, 6, 8, or 9 through holes 21, or the number of through holes 21 can be set as needed.

[0034] In a preferred embodiment, the damping components are disposed on both radial sides of the electrical accessory and spaced apart along the axial direction of the electrical accessory. For example, through holes 21 are evenly formed near the edge of the transition support platform 2 to ensure that each damping component 4 is subjected to uniform force while the transition support platform 2 provides stable support for the electrical accessory 1.

[0035] Based on the above embodiments, as a preferred embodiment, such as... Figure 3 As shown, the adapter support platform 2 is a plate-shaped structure, forming a plate-type support platform. This structure facilitates processing and provides comprehensive protection for the bottom of the electrical accessory 1. However, in some other embodiments, such as... Figure 4-5 As shown, the adapter support platform 2 is a frame structure, which makes the adapter support platform 2 lighter. When using this structure, the corners of the adapter support platform 2 can be chamfered.

[0036] The shape of the mounting bracket 3 should be such that it does not interfere with the installation of the adapter support 2 and the electrical accessory 1. For example, it can be two long strip structures with inverted U-shaped cross sections. The long strip structures have a transverse connecting surface and two longitudinal surfaces on both sides of the transverse connecting surface. A notch is provided at the edge of one of the longitudinal surfaces of the mounting bracket 3.

[0037] The number of mounting brackets 3 can be set to 2 or 3 sub-modules as needed. Each mounting bracket 3 has 2 to 4 sets of through holes depending on the vehicle size and shock absorption requirements. The length of each mounting bracket 3 can be adjusted as needed. The number of mounting brackets 3 should ensure that they can achieve the distribution of shock absorption points corresponding to the adapter support platform 2, and at the same time, the mounting brackets 3 can securely connect the electrical accessories 1 to the vehicle frame.

[0038] Preferably, the upper damping pad 41 and the lower damping pad 42 are cylindrical, and cylindrical grooves are formed on the inner surfaces of the cylindrical upper damping pad 41 and the lower damping pad 42. The grooves are used to install steel rings, and the outer diameter of the steel rings is slightly larger than the outer diameter of the grooves, so that the steel rings can be interference-fitted onto the inner surfaces of the upper damping pad 41 and the lower damping pad 42. The steel rings provide lateral support for the upper damping pad 41 and the lower damping pad 42, preventing them from undergoing severe deformation when vibration is excessive, thereby improving the service life of the damping pads.

[0039] Based on the above embodiments, as a preferred embodiment, one end of the adapter support extends to the bottom of the pump, and the shock-absorbing component is provided at that end. In this specific embodiment, the electric accessory 1 can be an electric power steering pump or an electric air compressor. The main vibrating part of the electric power steering pump or electric air compressor is the pump head. The shock-absorbing pads near the pump head are prone to wear. Therefore, the shock-absorbing component 4 is installed near the pump head to ensure that each shock-absorbing component 4 is subjected to force as evenly as possible, thereby extending the service life of the shock-absorbing pads.

[0040] In the installation structure of the mining truck electrical accessories of this utility model, the adapter support platform 2 connects the electrical accessory 1 and the mounting bracket 3 through the shock-absorbing components 4. The structure of the adapter support platform 2 facilitates the addition of shock-absorbing points. Users can install the appropriate number and position of shock-absorbing components 4 according to the vehicle model or the type of electrical accessory. Multiple shock-absorbing components 4 are distributed on the adapter support platform 2, ensuring that each shock-absorbing component 4 is subjected to uniform force. When the electrical accessory 1 vibrates during operation, the shock-absorbing components 4 undergo elastic deformation, absorbing vibration energy and releasing elastic potential energy, reducing the risk of resonance between the electrical accessory 1 and the mounting bracket 3, and improving the shock absorption effect. Steel plates are installed inside the shock-absorbing pad to provide support, which can reduce the deformation and wear of the shock-absorbing pad, thereby extending its service life.

[0041] The following is a detailed description of the implementation method of the mining car of this utility model:

[0042] For reference Figure 2-5 The mining vehicle of this utility model includes an electrical accessory mounted on a frame. The innovation lies in the adoption of the electrical accessory mounting structure of the mining vehicle of this utility model, which will not be described in detail here.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A structure for mounting electrical accessories of a mine car, comprising an electrical accessory and a mounting bracket, the electrical accessory comprising an electrical drive device and a pump mounted at an axial end of the electrical drive device, characterized in that, The adapter support table is fixedly connected with the electric driving device to form a rigid body as a whole, and a plurality of sets of damping components are distributed between the adapter support table and the mounting bracket to share the vibration of the electric accessory to prevent damage of a single damping component due to force concentration.

2. The mining vehicle electrical accessory mounting structure of claim 1, wherein, One end of the adapter support table extends to below the pump, and the damping components are arranged at the end.

3. The electrical accessory mounting structure for a mining vehicle according to claim 1 or 2, characterized in that, The damping components are arranged on both sides of the electric accessory in the radial direction and are spaced apart in the axial direction of the electric accessory.

4. The electrical accessory mounting structure for a mining vehicle according to claim 1 or 2, characterized by, The adapter support table and the mounting bracket are connected by connecting bolts, and each damping component includes upper and lower damping pads arranged on the upper and lower sides of the adapter support table.

5. The electrical accessory mounting structure for a mining vehicle according to claim 1 or 2, characterized by, The adapter support table is a plate support table.

6. A mine truck comprising a truck body, electrical accessories and mounting brackets for mounting the electrical accessories, the electrical accessories comprising an electric drive and a pump mounted to an axial end of the electric drive, characterized in that, The adapter support table is fixedly connected with the electric driving device to form a rigid body as a whole, and a plurality of sets of damping components are distributed between the adapter support table and the mounting bracket to share the vibration of the electric accessory to prevent damage of a single damping component due to force concentration.

7. The mine car of claim 6, wherein, One end of the adapter support table extends to below the pump, and the damping components are arranged at the end.

8. The mine car of claim 6 or 7, wherein, The damping components are arranged on both sides of the electric accessory in the radial direction and are spaced apart in the axial direction of the electric accessory.

9. The mine car of claim 6 or 7, wherein, The adapter support table and the mounting bracket are connected by connecting bolts, and each damping component includes upper and lower damping pads arranged on the upper and lower sides of the adapter support table.

10. The mine car of claim 6 or 7, wherein, The adapter support table is a plate support table.

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