Explosion-proof motor for mining auxiliary transport vehicle

Abstract

The utility model relates to the technical field of motors, and discloses an explosion-proof motor for a mining auxiliary transport vehicle, which comprises a shell, a fixed block is fixedly connected in the shell, a motor is fixedly connected in the fixed block, an output shaft is fixedly connected to the output end of the motor, and a motor shaft is fixedly connected to the output end of the motor. And the outer wall of the output shaft is rotatably connected to the interior of the shell, a first bearing is fixedly connected to the interior of the motor, the outer wall of the output shaft is rotatably connected to the inner wall of the first bearing, and a first connecting block is fixedly connected to the interior of the shell. According to the utility model, through the connection relation between the first bearing and the output shaft, the motor does not generate friction during operation, the motor is cooled through the fan, and the motor does not shake during operation through the springback characteristic of the spring, so that the beneficial effects of explosion suppression, buffering and heat dissipation are achieved; the problem that the motor shakes during operation to maintain the stability of the motor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a flameproof electric motor for a mining auxiliary transport vehicle. Background Art

[0002] Mining auxiliary transport vehicles are special vehicles used in underground mining environments such as coal mines, mainly for transporting personnel, equipment and materials. These vehicles usually need to work in narrow, humid and dusty environments, and these environments may contain flammable and explosive gases or dust, such as methane (gas) and coal dust. The design and material selection of flameproof motors can prevent electrical sparks or high-temperature surfaces from causing explosions of flammable gases or dust in the external environment.

[0003] The working principle of the flameproof electric motor used in traditional mining auxiliary transportation vehicles is similar to that of general electric motors, but it has a special design and structure to adapt to explosive environments. The motor is connected to the power supply to start the motor operation. When the current passes through the motor coil, a rotating magnetic field is generated. The rotating magnetic field interacts with the permanent magnet or coil inside the motor to generate torque, causing the motor rotor to start rotating. The rotor rotation is transmitted to the vehicle's transmission system through the output shaft, thereby driving the vehicle to move. The casing of the flameproof electric motor is designed to withstand the pressure generated by the internal explosion and prevent sparks or high temperatures from causing explosions in the external environment.

[0004] The flameproof motors used in the above-mentioned conventional mining auxiliary transport vehicles may not have the best heat dissipation performance as open motors due to the sealed design of the casing, which may cause the motor to overheat after working for a long time. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a flameproof motor for mining auxiliary transport vehicles, which aims to improve the shaking generated when the motor is running, maintain the stability of the motor and allow a certain relative movement to adapt to different working conditions and the problem that the heat generated when the motor is running cannot be dissipated.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flameproof electric motor for a mining auxiliary transport vehicle comprises a shell, a fixed block is fixedly connected to the interior of the shell, a motor is fixedly connected to the interior of the fixed block, an output shaft is fixedly connected to the output end of the motor, the outer wall of the output shaft is rotatably connected to the interior of the shell, a first bearing is fixedly connected to the interior of the motor, the outer wall of the output shaft is rotatably connected to the inner wall of the first bearing, a first connecting block is fixedly connected to the interior of the shell, a second connecting block is fixedly connected to the outer wall of the fixed block, a spring is provided on the outer wall of the first connecting block, one end of the spring is fixedly connected to the interior of the second connecting block, the outer wall of the second connecting block is slidably connected to the interior of the first connecting block, a fan is fixedly connected to the interior of the shell, and a rotating assembly is provided on the outer wall of the output shaft.

[0007] Furthermore, the rotating assembly comprises a circular ring, an outer wall of the circular ring is fixedly connected to one end of the output shaft, and a rotating block is fixedly connected to the outer wall of the circular ring.

[0008] Furthermore, a first connecting plate is rotatably connected inside the rotating block, one end of the first connecting plate is rotatably connected to a second connecting plate, and a handle is rotatably connected inside the shell.

[0009] Furthermore, one end of the second connecting plate is rotatably connected to a coupling block, and an outer wall of the coupling block is rotatably connected to a second bearing.

[0010] Furthermore, the outer wall of the second bearing is fixedly connected to the inside of the fixing frame, and the outer wall of the fixing frame is fixedly connected with a sliding block.

[0011] Furthermore, a connecting shaft is fixedly connected inside the coupling block, and one end of the connecting shaft is fixedly connected to a first driving disk.

[0012] Furthermore, a driving belt is fixedly connected to the interior of the first driving disk, and a second driving disk is fixedly connected to the inner wall of the driving belt.

[0013] Furthermore, the interior of the slider is slidably connected to a slide rail, the outer wall of the slider is fixedly connected to a rack, one end of the handle is fixedly connected to a gear, and the rack is meshed with the gear.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the connection relationship between the first bearing and the output shaft prevents the motor from generating friction during operation, the fan dissipates heat from the motor, and the rebound characteristics of the spring prevent the motor from shaking during operation, thereby achieving the beneficial effects of explosion-proofing, buffering and heat dissipation, solving the problem of generating shaking during motor operation, maintaining the stability of the motor, and possibly allowing a certain relative movement to adapt to different working conditions.

[0016] 2. In the utility model, the front and rear adjustment of the connecting shaft is achieved by turning the handle, and the output power to the equipment is achieved through the drive belt and the drive disk, thereby avoiding direct contact with the machine. Compared with the traditional method, it is beneficial to improve the service life of the motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the flameproof motor for mining auxiliary transport vehicles proposed by the utility model;

[0018] Figure 2 This is a partial structural diagram of one side of the output shaft of the flameproof motor for mining auxiliary transport vehicles proposed by the utility model;

[0019] Figure 3 This is a partial structural diagram of the first bearing side of the flameproof motor for mining auxiliary transport vehicles proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of one side of the fixing frame of the flameproof motor for the mining auxiliary transport vehicle proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of one side of the coupling block of the flameproof motor for mining auxiliary transport vehicles proposed by the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the structure of the rack side of the flameproof motor for mining auxiliary transport vehicles.

[0023] Legend:

[0024] 1. Housing; 2. Fixed block; 3. Motor; 4. Output shaft; 5. First bearing; 6. First connecting block; 7. Spring; 8. Second connecting block; 9. Fan; 10. Fixed frame; 11. Ring; 12. Rotating block; 13. First connecting plate; 14. Second connecting plate; 15. Coupling block; 16. Second bearing; 17. Connecting shaft; 18. Handle; 19. First driving disk; 20. Second driving disk; 21. Driving belt; 22. Slide rail; 23. Sliding block; 24. Gear; 25. Rack. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a flameproof motor for a mining auxiliary transport vehicle, comprising a shell 1, a fixed block 2 is fixedly connected to the inside of the shell 1, a motor 3 is fixedly connected to the inside of the fixed block 2, an output end of the motor 3 is fixedly connected to an output shaft 4, an outer wall of the output shaft 4 is rotatably connected to the inside of the shell 1, a first bearing 5 is fixedly connected to the inside of the motor 3, an outer wall of the output shaft 4 is rotatably connected to the inner wall of the first bearing 5, a first connecting block 6 is fixedly connected to the inside of the shell 1, a second connecting block 8 is fixedly connected to the outer wall of the fixed block 2, a spring 7 is provided on the outer wall of the first connecting block 6, one end of the spring 7 is fixedly connected to the inside of the second connecting block 8, an outer wall of the second connecting block 8 is slidably connected to the inside of the first connecting block 6, a fan 9 is fixedly connected to the inside of the shell 1, and a rotating component is provided on the outer wall of the output shaft 4.

[0027] Specifically, the housing 1 is used to protect the motor 3 and other components inside. The housing 1 is flameproof, which means that it can withstand possible explosions inside without breaking, thereby protecting the external environment from the explosion. By using the connection between the first bearing 5 and the output shaft 4, it can reduce friction and support the output shaft 4 so that it can rotate smoothly. The first connecting block 6, the second connecting block 8 and the spring 7 are used for shock absorption and maintaining a stable connection between components. The function of the spring 7 is to absorb vibrations, maintain the stability of the connection, and may allow a certain relative movement to adapt to different working conditions. The fan 9 can maintain the heat dissipation when the motor 3 is in working state.

[0028] Reference Figure 4 - Figure 6The rotating assembly includes a ring 11, the outer wall of the ring 11 is fixedly connected to one end of the output shaft 4, the outer wall of the ring 11 is fixedly connected to a rotating block 12, the interior of the rotating block 12 is rotatably connected to a first connecting plate 13, one end of the first connecting plate 13 is rotatably connected to a second connecting plate 14, the interior of the housing 1 is rotatably connected to a handle 18, one end of the second connecting plate 14 is rotatably connected to a coupling block 15, the outer wall of the coupling block 15 is rotatably connected to a second bearing 16, the outer wall of the second bearing 16 is fixedly connected to the interior of a fixed frame 10, the outer wall of the fixed frame 10 is fixedly connected to a slider 23, the interior of the coupling block 15 is fixedly connected to a connecting shaft 17, one end of the connecting shaft 17 is fixedly connected to a first driving disk 19, the interior of the first driving disk 19 is fixedly connected to a driving belt 21, the inner wall of the driving belt 21 is fixedly connected to a second driving disk 20, the interior of the slider 23 is slidably connected to a slide rail 22, the outer wall of the slider 23 is fixedly connected to a rack 25, one end of the handle 18 is fixedly connected to a gear 24, and the rack 25 meshes with the gear 24.

[0029] Specifically, the rotational force generated by the motor 3 is transmitted to the ring 11 through the output shaft 4, and then to the rotating block 12 and the first connecting plate 13, the second connecting plate 14, and finally to the coupling block 15 and the second bearing 16. The connecting shaft 17 and the first driving disk 19, the second driving disk 20 further transmit power through the driving belt 21. At the same time, the operation of the handle 18 can control the movement of the slider 23 on the slide rail 22 through the engagement of the gear 24 and the rack 25, so as to achieve more precise operation control. The outer wall of the second bearing 16 is fixedly connected to the inside of the fixed frame 10, supporting the rotation and movement of the coupling block 15, and achieving the purpose of adjusting the distance through the first connecting plate 13 and the second connecting plate 14.

[0030] Working principle: When it is necessary to use a flameproof electric motor for mining auxiliary transportation vehicles, first, the output shaft 4 is driven to rotate by the motor 3, and the first bearing 5 is connected and rotated between the motor 3 and the output shaft 4. The first bearing 5 can prevent the motor 3 from generating friction with the output shaft 4 when rotating, and the second connecting block 8 slides inside the first connecting block 6. The rebound characteristics of the spring 7 prevent the shaking of the motor 3 during operation from generating a large amount of friction with the housing 1, thereby reducing the friction coefficient, and the fan 9 is used to achieve the effect of heat dissipation when the motor 3 is running. The slider 23 is driven to slide above the slide rail 22 and the housing 1 by turning the handle 18, and the two second bearings 16 are used to connect the fixed frame 10 and the coupling block 15 so that the slider 23 can drive the connecting shaft 17 and the coupling block 15 to move together, and the first connecting plate 13 and the second connecting plate 14 are used to connect the ring 11 and the coupling block 15 so that the connecting shaft 17 and the coupling block 15 can be telescopically slidable, and the connecting shaft 17 is connected to the first drive disk 19 so that the first drive disk 19 drives the second drive disk 20 and the drive belt 21 to rotate.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flameproof electric motor for a mining auxiliary transport vehicle, comprising a housing (1), characterized in that: A fixed block (2) is fixedly connected to the inside of the housing (1), a motor (3) is fixedly connected to the inside of the fixed block (2), an output shaft (4) is fixedly connected to the output end of the motor (3), an outer wall of the output shaft (4) is rotatably connected to the inside of the housing (1), a first bearing (5) is fixedly connected to the inside of the motor (3), an outer wall of the output shaft (4) is rotatably connected to the inner wall of the first bearing (5), a first connecting block (6) is fixedly connected to the inside of the housing (1), a second connecting block (8) is fixedly connected to the outer wall of the fixed block (2), a spring (7) is provided on the outer wall of the first connecting block (6), one end of the spring (7) is fixedly connected to the inside of the second connecting block (8), the outer wall of the second connecting block (8) is slidably connected to the inside of the first connecting block (6), a fan (9) is fixedly connected to the inside of the housing (1), and a rotating assembly is provided on the outer wall of the output shaft (4).

2. The flameproof motor for mining auxiliary transport vehicle according to claim 1 is characterized in that: The rotating assembly comprises a circular ring (11), the outer wall of the circular ring (11) being fixedly connected to one end of the output shaft (4), and the outer wall of the circular ring (11) being fixedly connected to a rotating block (12).

3. The flameproof motor for mining auxiliary transport vehicle according to claim 2 is characterized in that: The interior of the rotating block (12) is rotatably connected to a first connecting plate (13), one end of the first connecting plate (13) is rotatably connected to a second connecting plate (14), and the interior of the housing (1) is rotatably connected to a handle (18).

4. The flameproof motor for mining auxiliary transport vehicle according to claim 3 is characterized in that: One end of the second connecting plate (14) is rotatably connected to a coupling block (15), and an outer wall of the coupling block (15) is rotatably connected to a second bearing (16).

5. The flameproof motor for mining auxiliary transport vehicle according to claim 4 is characterized in that: The outer wall of the second bearing (16) is fixedly connected to the interior of the fixing frame (10), and a sliding block (23) is fixedly connected to the outer wall of the fixing frame (10).

6. The flameproof motor for mining auxiliary transport vehicle according to claim 4 is characterized in that: A connecting shaft (17) is fixedly connected inside the coupling block (15), and one end of the connecting shaft (17) is fixedly connected to a first driving disk (19).

7. The flameproof motor for mining auxiliary transport vehicle according to claim 6 is characterized in that: A driving belt (21) is fixedly connected to the interior of the first driving disk (19), and a second driving disk (20) is fixedly connected to the inner wall of the driving belt (21).

8. The flameproof motor for mining auxiliary transport vehicle according to claim 5 is characterized in that: The interior of the slider (23) is slidably connected to a slide rail (22), the outer wall of the slider (23) is fixedly connected to a rack (25), one end of the handle (18) is fixedly connected to a gear (24), and the rack (25) is meshed with the gear (24).

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