Electric sanding structure of mining electric locomotive

By designing an electric sand-spreading structure for mining locomotives, and utilizing an explosion-proof motor and a multi-link structure to achieve electric sand spreading, the problem of poor adaptability of existing sand-spreading structures in underground coal mines has been solved, thus improving safety and reliability.

CN223791485UActive Publication Date: 2026-01-13ANHUI ZHONGCHE RUIDA ELECTRIC CO LTD
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Patent Information

Application Number
CN202520064344.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-13
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

The existing sand spreading structure is difficult to adapt to the complex working conditions in underground coal mines, cannot meet the requirements for safety and stability, and reduces the safety, reliability and convenience of the sand spreading device.

Method used

An electric sand-spreading structure for a mining locomotive was designed, including an explosion-proof motor, transmission components, tie rods, a rear sand box, a long tie rod, a front sand box, and connecting components. The electric sand-spreading of the locomotive is achieved through a multi-link structure, which is suitable for underground coal mine working conditions.

Benefits of technology

It improves the safety, reliability, and convenience of the sand spreading device, meeting the safety and stability requirements of underground coal mine transportation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223791485U_ABST
Patent Text Reader

Abstract

The utility model provides an electric sanding structure of a mining electric locomotive. The electric sanding structure comprises an explosive-proof motor; the transmission assembly is connected to the output end of the flame-proof motor; the connecting assembly is arranged on the outer side face of the transmission assembly; the sleeve is arranged on one side of the connecting assembly, a pull rod is arranged at one end of the sleeve, shoulder screws are arranged on the inner side face of the pull rod and the inner side face of the sleeve, and one end of each shoulder screw is in threaded connection with the interior of the side face of the connecting assembly. According to the electric sanding structure of the mining electric locomotive, the explosion-proof motor, the transmission assembly, the pull rod, the rear sand box, the long pull rod, the front sand box, the connecting assembly and the like are matched with one another, so that when the electric sanding structure is used, the electric sanding structure can well adapt to underground working conditions of a coal mine, meet the safety and stability requirements and meet the requirements of the mining electric locomotive; and the safety, the reliability and the convenience of the sanding device are improved.
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Description

Technical Field

[0001] This utility model relates to the field of mining electric locomotives, and in particular to an electric sand-spreading structure for mining electric locomotives. Background Technology

[0002] Mining locomotives are mainly used for long-distance transportation in underground transport tunnels and on the surface. Equivalent to an electric locomotive in railway transportation, they pull trains consisting of mine cars or personnel cars on tracks to transport coal, ore, materials, equipment, and personnel.

[0003] During the operation of mining locomotives, due to the complex underground environment, the track surface may have accumulated water, oil, dust, or moss. These substances reduce the friction between the wheels and the track, causing the wheels to slip easily. The sand-spreading structure can spread sand particles between the wheels and the track. The sand particles can fill the tiny gaps between the wheels and the track, increasing the roughness of the contact surface, just like laying a layer of sandpaper on a smooth ground. This effectively increases the friction, ensuring that the locomotive can start, accelerate, and climb slopes smoothly.

[0004] However, the transportation environment in coal mines is characterized by uneven road surfaces and a compact internal structure of locomotives, which places higher demands on the electrification of sand-spreading structures. Existing sand-spreading structures are difficult to adapt to the working conditions in coal mines, cannot meet the requirements for safety and stability, and reduce the safety, reliability, and convenience of sand-spreading devices.

[0005] Therefore, it is necessary to provide an electric sand-spreading structure for mining locomotives to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides an electric sand-spreading structure for mining locomotives, which solves the problem that sand-spreading structures are difficult to adapt to underground coal mine working conditions, cannot meet safety and stability requirements, and reduce the safety, reliability, and convenience of sand-spreading devices.

[0007] To solve the above-mentioned technical problems, this utility model provides an electric sand-spreading structure for a mining locomotive, comprising:

[0008] Explosion-proof motor;

[0009] A transmission assembly connected to the output end of the explosion-proof motor;

[0010] A connecting component, wherein the connecting component is disposed on the outer side of the transmission component;

[0011] A sleeve is disposed on one side of the connecting assembly. A pull rod is provided at one end of the sleeve. Shoulder screws are provided on the inner sides of both the pull rod and the sleeve. One end of the shoulder screw is threaded into the inside of the side of the connecting assembly.

[0012] A long pull rod is rotatably connected to one end of the pull rod. A rear sand box is rotatably connected to the bottom of one end of the long pull rod, and a front sand box is rotatably connected to the bottom of the other end of the long pull rod.

[0013] Preferably, both the rear sand box and the front sand box are provided in twos.

[0014] Preferably, a first support plate is fixedly installed at the bottom of the rear sand box, and a second support plate is fixedly installed at the bottom of the front sand box.

[0015] Preferably, a mounting bracket is fixedly installed on the side of the explosion-proof motor.

[0016] Preferably, the transmission assembly includes a connecting rod, a threaded rod, a limiting plate, and a nut; the connecting assembly includes a rocker arm and a sliding groove; the connecting rod is fixedly installed at the output end of the explosion-proof motor; the threaded rod is fixedly installed at one end of the connecting rod; the limiting plates are respectively fixedly installed on both sides of the threaded rod; the nut is threadedly connected to the outer side of the threaded rod; the rocker arm is sleeved on the outer side of the threaded rod; and the sliding grooves are respectively formed on both sides of the inner side of the rocker arm.

[0017] Preferably, the limiting plate is slidably connected to the inner side of the groove.

[0018] Preferably, one side of the nut abuts against one side of the rocker arm.

[0019] Compared with related technologies, the electric sand-spreading structure for mining locomotives provided by this utility model has the following beneficial effects:

[0020] This utility model provides an electric sand-spreading structure for mining locomotives. Through the cooperation of explosion-proof motor, transmission components, tie rod, rear sand box, long tie rod, front sand box and connecting components, it can be well adapted to the working conditions in coal mines, meet the requirements of safety and stability, meet the needs of mining locomotives, and improve the safety, reliability and convenience of sand-spreading devices. Attached Figure Description

[0021] Figure 1 A schematic diagram of the first embodiment of an electric sand-spreading structure for a mining locomotive provided by this utility model;

[0022] Figure 2 for Figure 1 The enlarged schematic diagram of part A shown below;

[0023] Figure 3 This is a schematic diagram of the second embodiment of the electric sand-spreading structure for a mining locomotive provided by this utility model.

[0024] The following are the labels in the diagram: 1. Explosion-proof motor, 2. Transmission assembly, 3. Sleeve, 4. Shoulder screw, 5. Tie rod, 6. Rear sand box, 7. First support plate, 8. Long tie rod, 9. Front sand box, 10. Second support plate, 11. Mounting bracket, 12. Connecting assembly, 21. Transmission rod, 22. Threaded rod, 23. Limiting plate, 24. Nut, 121. Rocker arm, 122. Slide groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 ,in, Figure 1 A schematic diagram of the first embodiment of an electric sand-spreading structure for a mining locomotive provided by this utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A is shown. A mining locomotive electric sand-spreading structure includes: an explosion-proof motor 1;

[0028] Transmission assembly 2, which is connected to the output end of the explosion-proof motor 1;

[0029] Connecting component 12, the connecting component 12 being disposed on the outer side of the transmission component 2;

[0030] Sleeve 3 is disposed on one side of the connecting assembly 12. A pull rod 5 is provided at one end of the sleeve 3. Shoulder screws 4 are provided on the inner side of both the pull rod 5 and the sleeve 3. One end of the shoulder screws 4 is threaded to the inside of the side of the connecting assembly 12.

[0031] A long pull rod 8 is rotatably connected to one end of the pull rod 5. The bottom of one end of the long pull rod 8 is rotatably connected to a rear sand box 6, and the bottom of the other end of the long pull rod 8 is rotatably connected to a front sand box 9.

[0032] Both the rear sand box 6 and the front sand box 9 are provided in twos.

[0033] The bottom of the rear sand box 6 is fixedly installed with a first support plate 7, and the bottom of the front sand box 9 is fixedly installed with a second support plate 10.

[0034] The explosion-proof motor 1 is fixedly mounted on the side of a mounting bracket 11.

[0035] In view of the compact spatial structure and harsh working environment of mining electric locomotives, this utility model utilizes the output shaft of the explosion-proof motor 1 to drive the transmission assembly 2 and the tie rod 5 to form a multi-link reciprocating motion. The tie rod 5 drives the rear sand box 6 to reciprocate, and the rear sand box 6 drives the front sand box 9 to reciprocate synchronously through the long tie rod 8. Through the reciprocating swing of the rear sand box 6 and the front sand box 9, the electric sand spreading of the electric locomotive is realized.

[0036] The explosion-proof motor 1 and the transmission assembly 2 are connected and fixed by anti-loosening nuts. The explosion-proof motor 1 and the transmission assembly 2 have conical surfaces with patterns, and the fit is tight and firm.

[0037] The transmission assembly 2 and the pull rod 5 are connected by the shoulder screw 4. The transmission assembly 2 and the pull rod 5 are raised by the sleeve 3 to avoid interference with the motor output shaft. It is easy to install and moves smoothly.

[0038] After the transmission component 2 and the pull rod 5 are combined, the sand box 6 forms a multi-link structure, which realizes the reciprocating swing action required for the sand spreading action. Its shape and size are designed according to the forming requirements to ensure the correct position of the sand box outlet.

[0039] The working principle of the electric sand-spreading structure for a mining locomotive provided by this utility model is as follows:

[0040] When in use, the explosion-proof motor 1 drives the transmission component 2 to rotate, which in turn drives the connecting component 12 to rotate. The connecting component 12 then transmits power through the sleeve 3 and the shoulder screw 4, thereby driving the pull rod 5 to move left and right. The pull rod 5 then drives the long pull rod 8 to move left and right, which in turn drives the front sand box 9 and the rear sand box 6 to swing, thus performing the sand spreading operation.

[0041] Compared with related technologies, the electric sand-spreading structure for mining locomotives provided by this utility model has the following beneficial effects:

[0042] The explosion-proof motor 1, transmission assembly 2, tie rod 5, rear sand box 6, long tie rod 8, front sand box 9, and connecting assembly 12 work together to adapt well to the working conditions in coal mines, meet the requirements for safety and stability, meet the needs of mining locomotives, and improve the safety, reliability, and convenience of the sand spreading device.

[0043] Second Embodiment

[0044] Please refer to the following: Figure 3 Based on the electric sand-spreading structure for a mining locomotive provided in the first embodiment of this application, the second embodiment of this application proposes another electric sand-spreading structure for a mining locomotive. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0045] Specifically, the second embodiment of this application provides a different type of electric sand-spreading structure for a mining locomotive. In this structure, the transmission assembly 2 includes a connecting rod 21, a threaded rod 22, a limiting plate 23, and a nut 24. The connecting assembly 12 includes a rocker arm 121 and a sliding groove 122. The connecting rod 21 is fixedly installed at the output end of the explosion-proof motor 1. The threaded rod 22 is fixedly installed at one end of the connecting rod 21. The limiting plates 23 are fixedly installed on both sides of the threaded rod 22. The nut 24 is threadedly connected to the outer side of the threaded rod 22. The rocker arm 121 is sleeved on the outer side of the threaded rod 22. The sliding grooves 122 are respectively opened on both sides of the inner side of the rocker arm 121.

[0046] The limiting plate 23 is slidably connected to the inner side of the slide groove 122.

[0047] One side of the nut 24 abuts against one side of the rocker arm 121.

[0048] The working principle of the electric sand-spreading structure for a mining locomotive provided by this utility model is as follows:

[0049] When installing the transmission assembly 2 and the connecting assembly 12, the user places the rocker arm 121 on the outer side of the threaded rod 22, thereby locking the limiting plate 23 into the inner side of the slide groove 122 to limit the rocker arm 121. Then, the nut 24 is threaded onto the outer side of the threaded rod 22, so that one side of the nut 24 abuts against the side of the rocker arm 121, thereby installing the rocker arm 121 and the transmission rod 21.

[0050] Compared with related technologies, the electric sand-spreading structure for mining locomotives provided by this utility model has the following beneficial effects:

[0051] The rocker arm 121 is installed by the interlocking structure of transmission rod 21, threaded rod 22, limiting plate 23, nut 24, rocker arm 121 and slide groove 122. When in use, the rocker arm 121 is simply sleeved on the outer side of the threaded rod 22, and then the nut 24 is threaded onto the outer side of the threaded rod 22, so that the nut 24 abuts the rocker arm 121 against one end of the transmission rod 21. The operation is convenient and quick.

[0052] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A mining locomotive electric sand-spreading structure, characterized in that, include: Explosion-proof motor; A transmission assembly connected to the output end of the explosion-proof motor; A connecting component, wherein the connecting component is disposed on the outer side of the transmission component; A sleeve is disposed on one side of the connecting assembly. A pull rod is provided at one end of the sleeve. Shoulder screws are provided on the inner sides of both the pull rod and the sleeve. One end of the shoulder screw is threaded into the inside of the side of the connecting assembly. A long pull rod is rotatably connected to one end of the pull rod. A rear sand box is rotatably connected to the bottom of one end of the long pull rod, and a front sand box is rotatably connected to the bottom of the other end of the long pull rod.

2. The electric sand-spreading structure for a mining locomotive according to claim 1, characterized in that, Both the rear sand box and the front sand box are provided in twos.

3. The electric sand-spreading structure for a mining locomotive according to claim 1, characterized in that, A first support plate is fixedly installed at the bottom of the rear sand box, and a second support plate is fixedly installed at the bottom of the front sand box.

4. The electric sand-spreading structure for a mining locomotive according to claim 1, characterized in that, The explosion-proof motor is fixedly mounted on a mounting bracket on its side.

5. The electric sand-spreading structure for a mining locomotive according to claim 1, characterized in that, The transmission assembly includes a connecting rod, a threaded rod, a limiting plate, and a nut. The connecting assembly includes a rocker arm and a sliding groove. The connecting rod is fixedly installed at the output end of the explosion-proof motor. The threaded rod is fixedly installed at one end of the connecting rod. The limiting plates are respectively fixedly installed on both sides of the threaded rod. The nut is threadedly connected to the outer side of the threaded rod. The rocker arm is sleeved on the outer side of the threaded rod. The sliding grooves are respectively opened on both sides of the inner side of the rocker arm.

6. The electric sand-spreading structure for a mining locomotive according to claim 5, characterized in that, The limiting plate is slidably connected to the inner side of the groove.

7. The electric sand-spreading structure for a mining locomotive according to claim 6, characterized in that, One side of the nut abuts against one side of the rocker arm.