Mine hoist

Abstract

The utility model relates to the technical field of elevator equipment, in particular to a mine elevator. The device comprises a base, supporting frames are fixed to the two ends of the top end of the base, a main guide wheel is rotationally connected between the two supporting frames, a driving motor is fixed to one end of one supporting frame, the output end of the driving motor is fixed to the main guide wheel, and a protection box is fixed to the other end of the other supporting frame. One end of the main guide wheel penetrates through the protection box to be fixedly provided with a brake disc, and a speed limiting positioning mechanism used for braking the main guide wheel is arranged in the protection box. According to the mine hoist provided by the utility model, the brake disc is braked and limited through the speed-limiting positioning mechanism, so that the stability of an object during lifting is improved, the braking effect of the device is improved, and the probability of rapid descending of the object is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hoist equipment, in particular to a mine hoist. Background Art

[0002] Mine hoist is a large-scale lifting mechanical equipment, which is driven by an electric motor. Under the action of wire rope, it drives the container to rise and fall in the shaft to complete the transportation task. Mine hoist has gradually developed from the original water-lifting tool. Modern mine hoists have large lifting capacity, high speed and high safety. They have developed into fully automatic heavy-duty mining machinery controlled by electronic computers.

[0003] For example, the patent (CN214036526U) discloses an improved mine hoist, including a base, two support plates are symmetrically fixedly connected to the upper side of the base, a rotating shaft is provided between the two support plates, and connecting components are provided between the rotating shaft and the two support plates, one of the support plates is fixedly connected to a mounting plate, a reduction motor is fixedly connected to the mounting plate, the output shaft end of the reduction motor is fixedly connected to the rotating shaft, a main guide wheel is sleeved on the rotating shaft, and baffles are fixedly connected to both sides of the main guide wheel.

[0004] When using the above technology, it was found that the following technical problems exist in the prior art: when the prior art is in use, it is not convenient to brake the main wheel. When the torque of the driving motor is too large, idling will occur, and then the object will drive the main wheel to fall rapidly, and cause a major accident; when the main wheel drives the object to a suitable height, the prior art needs to continuously output torque to keep the main wheel stable, which causes the driving motor to consume too much life and cannot maintain the stability of the object positioning. For this reason, we design a mine hoist to provide another technical solution to the above technical problems. Utility Model Content

[0005] Based on this, it is necessary to provide a mine hoist to address the above-mentioned technical problems. When in use, the mine hoist is connected to the object through a rope. When the object drives the main wheel and the brake disc to rotate, the brake disc is braked and limited by the speed limiting positioning mechanism, which facilitates the stability of the object during lifting and the braking effect of the lifting device, greatly reducing the probability of the object falling rapidly.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A mine hoist comprises a base, support frames are fixed at both ends of the top of the base, a main driving wheel is rotatably connected between the two support frames, a drive motor is fixed at one end of one of the support frames, the output end of the drive motor is fixed to the main driving wheel, a protective box is fixed at the other end of the other support frame, a brake disc is fixed at one end of the main driving wheel through the protective box, and a speed limiting positioning mechanism for braking the main driving wheel is arranged inside the protective box.

[0008] As a preferred embodiment of the mine hoist provided by the utility model, the speed limiting positioning mechanism includes a speed limiting component and a position limiting component, a speed limiting component is arranged at the top end of the protection box, and a position limiting component is arranged at the bottom end of the protection box.

[0009] As a preferred embodiment of the mine hoist provided by the utility model, the speed limiting component includes an electric push rod, an electric push rod is fixed to the top of the protective box, a slide is fixed to the output end of the electric push rod through the protective box, both ends of the slide are slidably connected to the protective box, and main sliders are fixed to both ends of the bottom end of the slide.

[0010] As a preferred embodiment of the mine hoist provided by the utility model, limiting blocks are fixed at both ends of the inner top of the protective box, the outer side of the limiting block is slidably connected with a passive slider, the outer side of the limiting block is sleeved with a spring, and the inclined surfaces of the two main sliders close to one end are slidably connected with the inclined surfaces of the two passive sliders away from one end.

[0011] As a preferred embodiment of the mine hoist provided by the utility model, the ends of the two limit blocks that are away from each other are fixed to the protection box, and the ends of the two limit blocks that are close to each other are fixed to the passive sliding block.

[0012] As a preferred embodiment of the mine hoist provided by the utility model, the limit assembly includes a servo motor, a servo motor is fixed at one end of the protective box, the bottom end inside the protective box is rotatably connected with a forward and reverse threaded rod, the output end of the servo motor is fixed to the forward and reverse threaded rod, both ends of the forward and reverse threaded rod are threadedly connected to a limit clamp, and the bottom end of the limit clamp is slidably connected to the protective box.

[0013] As a preferred embodiment of the mine hoist provided by the utility model, the brake disc is evenly provided with limit grooves, and the two limit clamps are close to each other at one end.

[0014] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0015] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0016] The utility model provides a mine hoist, when the output torque of the driving motor is insufficient and idling occurs, the object drives the main wheel to rotate, and the main wheel cannot control the speed. The speed limiting component controls the speed of the main wheel and the brake disc by friction, and then controls the speed of the object falling, which is convenient for the safety index of the lifting device;

[0017] The output end of the servo motor drives the positive and negative threaded rods to rotate, and then the positive and negative threaded rods drive two limit clamps and a block to limit the brake disc, so as to improve the stability of the object suspension, reduce the torque load of the drive motor, and increase the service life of the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the protective box of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the speed limiting component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0023] In the figure: 1. base; 2. protection box; 3. support frame; 4. electric push rod; 5. servo motor; 6. drive motor; 7. main wheel; 8. limit clamp; 9. brake disc; 10. limit groove; 11. slide plate; 12. main slide block; 13. limit block; 14. spring; 15. passive slide block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] Embodiment 1

[0029] Reference Figure 1-Figure 4 A mine hoist comprises a base 1, both ends of the top of the base 1 are fixed with support frames 3, a main driving wheel 7 is rotatably connected between the two support frames 3, a driving motor 6 is fixed at one end of one of the support frames 3, the output end of the driving motor 6 is fixed to the main driving wheel 7, a protection box 2 is fixed at the other end of the other support frame 3, a brake disc 9 is fixed at one end of the main driving wheel 7 through the protection box 2, and limiting grooves 10 are evenly arranged inside the brake disc 9, and a speed limiting positioning mechanism for braking the main driving wheel 7 is arranged inside the protection box 2;

[0030] When in use, the object is connected with the rope. When the object drives the main wheel 7 and the brake disc 9 to rotate, the brake disc 9 is braked and limited by the speed limiting positioning mechanism, which is convenient for improving the stability of the object during lifting and lowering, improving the braking effect of the device, and greatly reducing the probability of rapid descent of the object;

[0031] The speed limiting positioning mechanism includes a speed limiting component and a position limiting component. The top end of the protection box 2 is provided with a speed limiting component, and the bottom end of the protection box 2 is provided with a position limiting component.

[0032] When the output end of the driving motor 6 and the main wheel 7 are idling, the object and the main wheel 7 start to rotate, and the main wheel 7 cannot control the speed. At this time, the speed limiting component controls the speed of the main wheel 7 and the brake disc 9 by friction, thereby controlling the falling speed of the object;

[0033] The speed limiting component includes an electric push rod 4, the top of the protection box 2 is fixed with the electric push rod 4, the output end of the electric push rod 4 passes through the protection box 2 and is fixed with a slide plate 11, both ends of the slide plate 11 are slidably connected with the protection box 2, and both ends of the bottom of the slide plate 11 are fixed with main sliders 12;

[0034] The two ends of the inner top of the protection box 2 are fixed with limit blocks 13, the outer side of the limit block 13 is slidably connected with a passive slider 15, the outer side of the limit block 13 is sleeved with a spring 14, and the inclined surfaces of the two main sliders 12 close to one end are slidably connected with the inclined surfaces of the two passive sliders 15 away from one end;

[0035] The output end of the electric push rod 4 drives the slide plate 11 and the main slide block 12 to slide toward the brake disc 9, and then the inclined surfaces of the two main slide blocks 12 drive the two passive slide blocks 15 to slide toward each other, so that the passive slide blocks 15 perform friction control on the brake disc 9;

[0036] The ends of the two limit blocks 13 that are away from each other are fixed to the protection box 2, and the ends of the two limit blocks 13 that are close to each other are fixed to the passive slider 15;

[0037] When there is no need to control the friction of the brake disc 9, the output end of the electric push rod 4 drives the slide plate 11 and the main slide block 12 to slide upward, and the inclined surface of the main slide block 12 is separated from the inclined surface of the passive slide block 15. At this time, the elasticity of the limit block 13 drives the passive slide block 15 to separate from the friction of the brake disc 9;

[0038] The limit assembly includes a servo motor 5, one end of the protective box 2 is fixed with the servo motor 5, the bottom end of the inner side of the protective box 2 is rotatably connected with a positive and negative threaded rod 16, the output end of the servo motor 5 is fixed to the positive and negative threaded rod 16, both ends of the positive and negative threaded rod 16 are threadedly connected to the limit clamping plate 8, the bottom end of the limit clamping plate 8 is slidably connected to the protective box 2, and the ends of the two limit clamping plates 8 close to each other are fixed with a clamping block, and the clamping block is clamped with the limit groove 10;

[0039] When the device needs to suspend an object at a suitable height, the output end of the servo motor 5 drives the forward and reverse threaded rods 16 to rotate, and then the forward and reverse threaded rods 16 drive the two limit clamps 8 to limit the brake disc 9 in the direction of moving away from or approaching each other, and then the clamping block is clamped with the limit clamp 8, which is convenient for improving the stability of the suspension of the device, reducing the torque load of the drive motor 6, and improving the service life of the drive motor 6.

[0040] The use process of a mine hoist provided by the utility model is as follows: when in use, it is connected to an object through a rope. When the object needs to fall, the object drives the main wheel 7 and the brake disc 9 to rotate rapidly, and the output end of the electric push rod 4 drives the slide plate 11 and the main slide block 12 to slide in the direction of the brake disc 9, and then the inclined surfaces of the two main slide blocks 12 drive the two passive slide blocks 15 to slide in a direction close to each other, so that the passive slide block 15 performs friction control on the brake disc 9 to avoid a major accident caused by the rapid fall of the object;

[0041] When the output end of the driving motor 6 drives the main guide wheel 7 to rotate, and then the main guide wheel 7 drives the object to be suspended at a suitable height, the output end of the servo motor 5 drives the positive and negative threaded rods 16 to rotate, and then the positive and negative threaded rods 16 drive the two limit clamps 8 to limit the brake disc 9 in the direction of moving away from or approaching each other, and then the clamping block is clamped with the limit clamping plate 8, which is convenient for lifting the stability of the suspension of the device, reducing the torque load of the driving motor 6, and improving the service life of the driving motor 6.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mine hoist, characterized in that: The invention comprises a base (1), support frames (3) are fixed at both ends of the top of the base (1), a main driving wheel (7) is rotatably connected between the two support frames (3), a driving motor (6) is fixed at one end of one of the support frames (3), the output end of the driving motor (6) is fixed to the main driving wheel (7), a protection box (2) is fixed at the other end of the other support frame (3), a brake disc (9) is fixed at one end of the main driving wheel (7) through the protection box (2), and a speed limiting positioning mechanism for braking the main driving wheel (7) is arranged inside the protection box (2).

2. A mine hoist according to claim 1, characterized in that: The speed limiting positioning mechanism comprises a speed limiting component and a position limiting component. The top end of the protection box (2) is provided with a speed limiting component, and the bottom end of the protection box (2) is provided with a position limiting component.

3. A mine hoist according to claim 2, characterized in that: The speed limiting component comprises an electric push rod (4), the electric push rod (4) is fixed to the top of the protection box (2), the output end of the electric push rod (4) passes through the protection box (2) and is fixed with a slide plate (11), both ends of the slide plate (11) are slidably connected to the protection box (2), and both ends of the bottom end of the slide plate (11) are fixed with main sliders (12).

4. A mine hoist according to claim 3, characterized in that: Limiting blocks (13) are fixed at both ends of the inner top of the protection box (2); a passive slider (15) is slidably connected to the outer side of the limiting block (13); a spring (14) is sleeved on the outer side of the limiting block (13); and the inclined surfaces of the two main sliders (12) close to one end are slidably connected to the inclined surfaces of the two passive sliders (15) away from one end.

5. A mine hoist according to claim 4, characterized in that: The ends of the two limit blocks (13) that are away from each other are fixed to the protection box (2), and the ends of the two limit blocks (13) that are close to each other are fixed to the passive sliding block (15).

6. A mine hoist according to claim 2, characterized in that: The limit assembly comprises a servo motor (5), one end of the protective box (2) is fixed with the servo motor (5), the bottom end of the inner side of the protective box (2) is rotatably connected with a forward and reverse threaded rod (16), the output end of the servo motor (5) is fixed to the forward and reverse threaded rod (16), both ends of the forward and reverse threaded rod (16) are threadedly connected to a limit clamp (8), and the bottom end of the limit clamp (8) is slidably connected to the protective box (2).

7. A mine hoist according to claim 6, characterized in that: Limiting grooves (10) are evenly distributed inside the brake disc (9), and a clamping block is fixed to one end of the two limiting clamping plates (8) that are close to each other, and the clamping block is clamped with the limiting groove (10).

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