A lifting device specially used for mechanical and electrical installation in coal mines

Abstract

The present invention discloses a lifting device dedicated to electromechanical installation in coal mines, belonging to the field of electromechanical installation technology; it includes a bracket and two hydraulic winches fixedly installed in the bracket, the lower side of the bracket is threadedly installed with a plurality of legs, the outer sides of the two hydraulic winches are wound and connected with steel wire ropes, the lower ends of the steel wire ropes are commonly fixedly connected with a fixing plate, and the lower side of the fixing plate is rotatably connected with a first connecting plate. Under the action of the first connecting plate, the second connecting plate and a plurality of protective ropes, the present invention completes the clamping and fixing operation of the electromechanical equipment, and the structure is simple, firm and reliable, and under the action of the rotating cylinder and the rotating rod, the actual use size of each protective rope can be adjusted, thereby completing the connection operation of electromechanical equipment of different shapes and sizes.

Description

Technical Field

[0001] The invention relates to the technical field of electromechanical installation, and in particular to a lifting device dedicated to electromechanical installation in a coal mine. Background Art

[0002] During the mining process of coal mines, various electromechanical equipment needs to be installed inside the coal mines to facilitate the subsequent mining work. During the laying of electromechanical equipment, special lifting devices need to be used for transportation. Currently, the commonly used lifting device is a winch.

[0003] The winch mainly includes a drum, a power source, a gear reducer, a ground anchor, etc. The hook and the wire rope are wound on the drum, and a certain protective rope is wound around the outside of the electromechanical equipment to be transported. Then, the hook is used to lift the protective rope and the electromechanical equipment as a whole, and the winch is started to start the corresponding lifting operation. The overall operation is simple, but in the actual working process, especially when transporting electromechanical equipment to the inside of a coal mine, it is only connected by a protective rope and a hook, and there is no protective operation for the electromechanical equipment. When some gravel falls, it is very likely to cause damage to the electromechanical equipment. In the process of lifting the electromechanical equipment, manual care is required to reduce the collision between the corners of the electromechanical equipment and the inner wall of the coal mine. In addition, in the process of lifting, due to various accidents, the actual size of the coal mine may change (not referring to the change of the coal mine, but the change of the position of the guardrail and other devices on the side wall of the coal mine), resulting in the electromechanical equipment being unable to land normally. In the process of transportation, there is no corresponding reminder device. Therefore, a lifting device dedicated to electromechanical installation in coal mines is provided. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a lifting device dedicated to coal mine mechanical and electrical installation.

[0005] The present invention adopts the following technical solutions:

[0006] A lifting device specially used for electromechanical installation in a coal mine, comprising a bracket and two hydraulic winches fixedly installed in the bracket, a plurality of legs being threadedly installed on the lower side of the bracket, a steel wire rope being wound and connected to the outer sides of the two hydraulic winches, a fixing plate being fixedly connected to the lower ends of the steel wire ropes, and a first connecting plate being rotatably connected to the lower side of the fixing plate, a plurality of first connecting rods being rotatably installed on the outer side of the first connecting plate, a fixing cylinder being fixedly connected to the outer side of the first connecting rod, a rotating cylinder being fixedly connected to the side wall of the fixing cylinder, a plurality of rotating cylinders being threadedly connected to rotating rods, a protective rope being fixedly connected to the outer side of the rotating rod, and the lower ends of the plurality of protective ropes being fixedly connected to the There is a second connecting plate, and a protection component for the electromechanical equipment is installed on the outside of the rotating cylinder. The protection component includes a second connecting rod fixedly installed on the upper side of the rotating cylinder, the outer side of the second connecting rod is slidably connected to the first connecting cylinder, a first spring is fixedly connected between the second connecting rod and the first connecting cylinder, a first protective plate is fixedly connected to the upper side of the first connecting cylinder, a connecting ring is rotatably connected to the outer side of the rotating rod, a third connecting rod is fixedly connected to the outer side of the connecting ring, a second connecting rod is slidably connected to the outer side of the third connecting rod, a second spring is fixedly connected between the second connecting cylinder and the third connecting rod, and a second protective plate is fixedly connected to the upper side of the second connecting cylinder.

[0007] Preferably, a control assembly is installed in the fixed cylinder, and the control assembly includes a fourth connecting rod fixedly installed on the lower side of the first connecting cylinder, the side wall of the fourth connecting rod is fixedly connected to a rack through a fifth connecting rod, a first threaded cylinder is rotatably connected in the fixed cylinder, a gear is fixedly connected to the outer side of the first threaded cylinder, the gear and the rack are meshed, a first threaded rod is threadedly connected in the first threaded cylinder, the first threaded rod and the fixed cylinder are slidably connected, a movable plate is fixedly connected to the outer side of the first threaded rod, the movable plate is located in the fixed cylinder, a sixth connecting rod is fixedly connected to the upper side of the movable plate, and the sixth connecting rod A circular plate is fixedly connected to the upper side of the rod, and a second threaded cylinder is rotatably connected to the side wall of the circular plate, a second threaded rod is threadedly connected to the inner side of the second threaded cylinder, the second threaded rod and the first protective plate are fixedly connected, a blocking rod is slidably connected to the outer side of the second threaded cylinder, a third spring is fixedly connected between the blocking rod and the second threaded cylinder, a rotating ring is rotatably connected to the outer side of the second threaded rod, a control cylinder is fixedly connected to the outer side of the rotating ring, a plurality of triangular plates are fixedly connected to the inner circumference of the control cylinder, a plurality of control plates are fixedly connected to the outer circumference of the control cylinder, and a torsion spring is fixedly connected between the rotating ring and the first protective plate.

[0008] Preferably, a reminder component is installed in the first connecting plate, and the reminder component includes multiple groups of arc plates fixedly installed on the outside of the first connecting plate, the side wall of the arc plate is slidably connected to the seventh connecting rod, a moving ball is fixedly connected to one side of the seventh connecting rod, the moving ball and the moving plate are abutted against each other, an extrusion plate is fixedly connected to the side of the seventh connecting rod away from the moving ball, a fourth spring is fixedly connected between the extrusion plate and the arc plate, and a button switch is fixedly connected to the side wall of the first connecting plate.

[0009] Preferably, a rubber protective pad is slidably sleeved on the outer side of the protection rope.

[0010] Preferably, anti-slip rubber pads are fixedly connected to the outer sides of the first connecting plate and the second connecting plate.

[0011] Preferably, a sliding groove is provided on the lower side of the first protective plate, a sliding rod is slidably connected in the sliding groove, and the sliding rod is fixedly connected to the second protective plate.

[0012] Preferably, the upper surfaces of the first protection plate and the second protection plate are both smooth.

[0013] The beneficial effects of the present invention are:

[0014] Firstly, under the action of the first connecting plate, the second connecting plate and the plurality of protection ropes, the clamping and fixing operation of the electromechanical equipment is completed. The structure is simple and firm and reliable. Moreover, under the action of the rotating cylinder and the rotating rod, the actual use size of each protection rope can be adjusted, thereby completing the connection operation of electromechanical equipment of different shapes and sizes.

[0015] In the process of the first connecting plate, the electromechanical device and the second connecting plate moving upward as a whole, the first protection plate and the second protection plate are located outside the electromechanical device, which can form a simple protection operation for the electromechanical device. When gravel falls, the gravel and the first protection plate or the second protection plate are against each other, and the gravel can be intercepted under the buffering effect of the first spring and the second spring, thereby reducing the possibility that the gravel directly falls outside the electromechanical device and causes damage to the electromechanical device;

[0016] When heavy gravel falls on the upper side of the first protection plate, a series of transmission structures will drive the control cylinder and the control plate to rotate, so that the gravel can be automatically discharged from the upper side of the first protection plate, thereby improving safety performance;

[0017] When there is an obstacle that affects the rise of the electromechanical equipment, the control cylinder and the control board will rotate, thereby driving the electromechanical equipment as a whole to rotate, so that the electromechanical equipment and the obstacle are staggered, and automatic adjustment can be performed, with a high degree of automation and intelligence;

[0018] When all the first protection plates are against the inner wall of the coal mine, it means that the size of the coal mine is not large enough to complete the lifting operation of the electromechanical equipment, and all the button switches are turned on, which causes the control circuit of the hydraulic winch to be disconnected and the hydraulic winch to be turned off. At this time, the corresponding staff can be alerted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a lifting device dedicated to coal mine mechanical and electrical installation proposed by the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the rotating cylinder and the rotating rod in a lifting device dedicated to the mechanical and electrical installation of a coal mine proposed by the present invention;

[0021] Figure 3 This is a cross-sectional connection diagram of a rotating cylinder and a rotating rod in a lifting device dedicated to coal mine mechanical and electrical installation proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the connection between the gear and the rack in a lifting device dedicated to the electromechanical installation of a coal mine proposed by the present invention;

[0023] Figure 5 This is a cross-sectional connection diagram of a control cylinder in a lifting device dedicated to coal mine mechanical and electrical installation proposed by the present invention;

[0024] Figure 6 A schematic diagram of the connection between a control cylinder and a second threaded cylinder in a lifting device dedicated to coal mine mechanical and electrical installation proposed by the present invention;

[0025] Figure 7 for Figure 3 A magnified view of the structure at center A;

[0026] Figure 8 The present invention is a schematic cross-sectional connection diagram of a fixed cylinder and an arc-shaped plate in a lifting device specially used for electromechanical installation in a coal mine.

[0027] In the figure: 1 bracket, 2 hydraulic winch, 3 support foot, 4 wire rope, 5 first connecting plate, 6 rotating cylinder, 7 rotating rod, 8 protection rope, 9 second connecting plate, 10 first connecting rod, 11 fixed cylinder, 12 connecting ring, 13 third connecting rod, 14 second connecting cylinder, 15 second protection plate, 16 first protection plate, 17 first connecting cylinder, 18 second connecting rod, 19 first spring, 20 second spring, 21 slide groove, 22 slide rod, 23 fourth connecting rod, 24 fifth connecting rod, 25 rack, 26 first threaded cylinder, 27 gear, 28 first threaded rod, 29 moving plate, 30 sixth connecting rod, 31 round plate, 32 second threaded rod, 33 control cylinder, 34 control plate, 35 second threaded cylinder, 36 rotating ring, 37 torsion spring, 38 triangular plate, 39 stop rod, 40 third spring, 41 moving ball, 42 arc plate, 43 seventh connecting rod, 44 fourth spring, 45 extrusion plate, 46 push button switch. DETAILED DESCRIPTION

[0028] See also Figure 1-Figure 8 , a lifting device dedicated to electromechanical installation in a coal mine, comprising a bracket 1 and two hydraulic winches 2 fixedly installed in the bracket 1, a plurality of legs 3 are threadedly installed on the lower side of the bracket 1, a steel wire rope 4 is wound and connected to the outer side of the two hydraulic winches 2, a fixed plate is fixedly connected to the lower end of the steel wire rope 4, and a first connecting plate 5 is rotatably connected to the lower side of the fixed plate, a plurality of first connecting rods 10 are rotatably installed on the outer side of the first connecting plate 5, a fixed cylinder 11 is fixedly connected to the outer side of the first connecting rod 10, a rotating cylinder 6 is fixedly connected to the side wall of the fixed cylinder 11, a plurality of rotating cylinders 6 are internally threadedly connected to rotating rods 7, a protective rope 8 is fixedly connected to the outer side of the rotating rod 7, a second connecting plate 9 is fixedly connected to the lower end of the plurality of protective ropes 8, a rubber protective pad is slidably sleeved on the outer side of the protective rope 8, an anti-slip rubber pad is fixedly connected to the outer side of the first connecting plate 5 and the second connecting plate 9, a sliding groove 21 is opened on the lower side of the first protective plate 16, a sliding rod 22 is slidably connected in the sliding groove 21, and the sliding rod 22 is fixedly connected to the second protective plate 15;

[0029] First, when it is necessary to transport the electromechanical equipment, first move the device as a whole to a suitable working position, rotate the support leg 3, complete the adjustment and fixing operation of the overall position of the bracket 1, place the electromechanical equipment to be transported on the upper side of the second connecting plate 9, rotate the rotating rod 7 until the protection rope 8, the first connecting plate 5 and the electromechanical equipment are against each other, and the protection rope 8 is in a taut state, thereby completing the installation operation of the electromechanical equipment, and then use the rope to wrap and protect it, start the hydraulic winch 2, and the hydraulic winch 2 drives the first connecting plate 5, the electromechanical equipment, and the second connecting plate 9 to move as a whole through the wire rope 4, and perform the corresponding lifting and transportation operation until the electromechanical equipment is transported to a suitable working position, and then the electromechanical equipment is unloaded. The above are all existing technologies and no unnecessary elaboration is made;

[0030] like Figure 2 , Figure 3 , a protection assembly for electromechanical equipment is installed on the outer side of the rotating cylinder 6, and the protection assembly includes a second connecting rod 18 fixedly installed on the upper side of the rotating cylinder 6, a first connecting cylinder 17 is slidably connected to the outer side of the second connecting rod 18, a first spring 19 is fixedly connected between the second connecting rod 18 and the first connecting cylinder 17, a first protection plate 16 is fixedly connected to the upper side of the first connecting cylinder 17, a connecting ring 12 is rotatably connected to the outer side of the rotating rod 7, a third connecting rod 13 is fixedly connected to the outer side of the connecting ring 12, a second connecting cylinder 14 is slidably connected to the outer side of the third connecting rod 13, a second spring 20 is fixedly connected between the second connecting cylinder 14 and the third connecting rod 13, and a second protection plate 15 is fixedly connected to the upper side of the second connecting cylinder 14;

[0031] First, when the electromechanical equipment is installed between the first connecting plate 5 and the second connecting plate 9, the rotating cylinder 6 and the rotating rod 7 should be located at the corners of the electromechanical equipment or at the more protruding parts of the electromechanical equipment as much as possible. Then, the upper surfaces of the first protective plate 16 and the second protective plate 15 are both smooth, and the upper surfaces of the first protective plate 16 and the second protective plate 15 are both high in the middle and low on both sides. That is, when gravel falls on the upper side of the first protective plate 16 or the second protective plate 15, it will slide down along the side walls of the first protective plate 16 and the second protective plate 15, and the electromechanical equipment is directly below the first protective plate 16 and the second protective plate 15. Therefore, the gravel sliding down the side wall of the first protective plate 16 or the second protective plate 15 will not collide with the electromechanical equipment. Secondly, in the process of the first connecting plate 5, the electromechanical equipment and the second connecting plate 9 moving upward as a whole, the first protective plate 16 and the second protective plate 15 are located on the outside of the electromechanical equipment, which can form a simple protection operation for the electromechanical equipment. When gravel falls, the gravel and the first protective plate 16 or the second protective plate 15 are offset against each other. Under the buffering action of the first spring 19 and the second spring 20, the gravel can be intercepted, reducing the possibility of the gravel falling directly on the outside of the electromechanical equipment and causing damage to the electromechanical equipment.

[0032] like Figure 4 , Figure 5 , Figure 6 , Figure 7A control assembly for controlling the rotation of the first connecting plate 5 is installed in the fixed cylinder 11, and the control assembly includes a fourth connecting rod 23 fixedly installed on the lower side of the first connecting cylinder 17, and the side wall of the fourth connecting rod 23 is fixedly connected to a rack 25 through a fifth connecting rod 24. A first threaded cylinder 26 is rotatably connected in the fixed cylinder 11, and a gear 27 is fixedly connected to the outer side of the first threaded cylinder 26. The gear 27 and the rack 25 are meshed. A first threaded rod 28 is threadedly connected to the first threaded cylinder 26, and the first threaded rod 28 is slidably connected to the fixed cylinder 11. A movable plate 29 is fixedly connected to the outer side of the first threaded rod 28, and the movable plate 29 is located in the fixed cylinder 11. A sixth connecting rod 30 is fixedly connected to the upper side of the movable plate 29. The sixth connecting rod 30 is fixedly connected to the sixth threaded rod 28. A circular plate 31 is fixedly connected to the upper side of the rod 30, a second threaded cylinder 35 is rotatably connected to the side wall of the circular plate 31, a second threaded rod 32 is threadedly connected to the inner side of the second threaded cylinder 35, the second threaded rod 32 is fixedly connected to the first protection plate 16, a blocking rod 39 is slidably connected to the outer side of the second threaded cylinder 35, a third spring 40 is fixedly connected between the blocking rod 39 and the second threaded cylinder 35, a rotating ring 36 is rotatably connected to the outer side of the second threaded rod 32, a control cylinder 33 is fixedly connected to the outer side of the rotating ring 36, a plurality of triangular plates 38 are fixedly connected to the inner circumference of the control cylinder 33, a plurality of control plates 34 are fixedly connected to the outer circumference of the control cylinder 33, a torsion spring 37 is fixedly connected between the rotating ring 36 and the first protection plate 16;

[0033] First, when gravel falls on the upper side of the first protective plate 16 or the second protective plate 15, the overall weight of the first protective plate 16 and the second protective plate 15 will increase, thereby causing the first protective plate 16 and the second protective plate 15 to compress the first spring 19 and the second spring 20, and the first protective plate 16 and the second protective plate 15 move relative to the fixed cylinder 11 in the direction close to the fixed cylinder 11. At the same time, the first protective plate 16 drives the fourth connecting rod 23 to move downward through the first connecting cylinder 17, and the fourth connecting rod 23 drives the rack 25 to move downward through the fifth connecting rod 24, and the rack 25 drives the first threaded cylinder 26 to rotate through the gear 27. Since the first threaded rod 28 is threadedly connected to the first threaded cylinder 26, and the first threaded rod 28 is slidably connected to the fixed cylinder 11, the rotating first threaded cylinder 26 will drive the first threaded rod 28 to move rightward relative to the fixed cylinder 11, and the first threaded rod 28 drives the movable plate 29 to move rightward. The movable plate 29 is The sixth connecting rod 30 drives the circular plate 31 and the second threaded cylinder 35 to move rightward. Since the second threaded cylinder 35 and the second threaded rod 32 are threadedly connected, and the second threaded rod 32 and the first protective plate 16 are fixedly connected, the second threaded cylinder 35 will rotate in the process of moving rightward, and the second threaded cylinder 35 drives the blocking rod 39 to rotate through the third spring 40. In this process, the blocking rod 39, the triangular plate 38, and the third spring 40 are similar to the ratchet structure in real life. When the second threaded cylinder 35 rotates due to moving rightward, the triangular plate 38 and the control cylinder 33 will be driven to rotate through the blocking rod 39, and the rotation directions of the control cylinder 33 and the second threaded cylinder 35 are the same. The control cylinder 33 drives the control plate 34 to rotate, and the control cylinder 33 stretches the torsion spring 37 to prevent the crushed stones from falling on the upper side of the first protective plate 16 and then stopping. The crushed stones can be automatically discharged from the upper side of the first protective plate 16, thereby improving the safety performance.

[0034] In the above working process, when gravel falls on the upper side of the first protective plate 16 or the second protective plate 15, the blocking rod 39 is always located between the triangular plates 38 in the control cylinder 33, that is, the blocking rod 39 can always drive the control cylinder 33 to rotate through the triangular plates 38, but when the first protective plate 16 and the inner wall of the coal mine are against each other, the coal mine will seriously hinder the first protective plate 16 from moving upward as a whole following the first connecting plate 5, and the first spring 19 and the second spring 20 are extremely compressed, which causes the moving plate 29 to move rightward as a whole. The distance is the maximum, and the blocking rod 39 moves out from between the triangular plates 38, and the control cylinder 33 loses the power of the blocking rod 39. Therefore, under the action of the torsion spring 37, the control cylinder 33 will be The control cylinder 33 and the control plate 34 rotate, and the control cylinder 33 and the control plate 34 abut against the inner wall of the coal mine, which will cause the first protective plate 16 to rotate as a whole with the first connecting plate 5 as the center, and the first protective plate 16 drives the first connecting plate 5 to rotate until the control cylinder 33 and the control plate 34 are disconnected from the side wall of the coal mine. At this time, under the action of the first spring 19 and the second spring 20, the first protective plate 16 and the second protective plate 15 return to their original positions relative to the fixed cylinder 11, and then during the rising process of the electromechanical equipment, when there are obstacles that affect the rising of the electromechanical equipment, they can rotate and stagger between the obstacles, and can be automatically adjusted, with a high degree of automation and intelligence.

[0035] like Figure 8 A reminder component is installed in the first connecting plate 5, and the reminder component includes a plurality of groups of arc plates 42 fixedly installed on the outside of the first connecting plate 5, and the plurality of groups of arc plates 42 and the fixed cylinder 11 are matched one by one, and the arc plates 42 and the fixed cylinder 11 are concentrically arranged, and a cavity is opened in the fixed cylinder 11, and an opening is opened on the outside of the cavity, and the movable plate 29 is located in the cavity, and the sixth connecting rod 30 passes through the opening, and the side wall of the arc plate 42 is slidably connected with the seventh connecting rod 43, and the seventh connecting rod 43 passes through the opening, and the moving ball 41 is fixedly connected to one side of the seventh connecting rod 43 located in the cavity, and the moving ball 41 and the moving plate 29 are against each other, and the side of the seventh connecting rod 43 away from the moving ball 41 is fixedly connected with an extrusion plate 45, and a fourth spring 44 is fixedly connected between the extrusion plate 45 and the arc plate 42, and a button switch 46 is fixedly connected to the side wall of the first connecting plate 5;

[0036] First, the button switch 46 is connected in series with the control circuit of the hydraulic winch 2 through a wire, and all the button switches 46 are in parallel with each other, and when there is no external force pressing the button switch 46, the control circuit is in a closed state (similar to a normally open switch in real life, that is, in the initial state, the circuit is in an open state), and then when gravel falls on the first protective plate 16 or the upper side of the second protective plate 15, it will cause the moving plate 29 to move to the right, and the moving plate 29 drives the moving ball 41 to move to the right, and the moving ball 41 drives the squeezing plate 45 to move to the right through the seventh connecting rod 43, but at this time the moving plate 45 The moving distance is short. Only when the first protection plate 16 abuts against the inner wall of the coal mine shaft, the moving plate 29 moves a large distance, which will cause the button switch 46 to be turned on. However, the button switches 46 are in a parallel state. Only one button switch 46 is turned on, which cannot cause the hydraulic winch 2 to be turned off. However, when all the first protection plates 16 abut against the inner wall of the coal mine shaft, it means that the size of the coal mine shaft is not enough to complete the lifting operation of the electromechanical equipment. All the button switches 46 are turned on, which causes the control circuit of the hydraulic winch 2 to be disconnected and the hydraulic winch 2 to be turned off. At this time, the corresponding staff can be reminded;

[0037] In the above working process, when the electromechanical equipment is clamped and fixed by using the fixed cylinder 11, the rotating cylinder 6, the rotating rod 7 and the protective rope 8, the fixed cylinder 11 and the first connecting rod 10 will rotate, thereby causing the fixed cylinder 11 to rotate relative to the arc plate 42, and then causing the moving plate 29 to rotate relative to the moving ball 41, but during the rotation of the moving plate 29, the moving plate 29 is always against the moving ball 41.

[0038] In the present invention, when it is necessary to transport the electromechanical equipment, first move the device as a whole to a suitable working position, rotate the support leg 3, complete the adjustment and fixing operation of the overall position of the bracket 1, place the electromechanical equipment to be transported on the upper side of the second connecting plate 9, rotate the rotating rod 7 until the protection rope 8, the first connecting plate 5 and the electromechanical equipment are against each other, and the protection rope 8 is in a taut state, thereby completing the installation operation of the electromechanical equipment, and then use the rope to wrap and protect it, start the hydraulic winch 2, and the hydraulic winch 2 drives the first connecting plate 5, the electromechanical equipment, and the second connecting plate 9 to move as a whole through the wire rope 4, and perform the corresponding lifting and transportation operation until the electromechanical equipment is transported to a suitable working position, and then the electromechanical equipment is unloaded. The above are all existing technologies and no unnecessary elaboration is made;

[0039] When gravel falls on the upper side of the first protective plate 16 or the second protective plate 15, the weight of the first protective plate 16 and the second protective plate 15 will increase, thereby causing the first protective plate 16 and the second protective plate 15 to compress the first spring 19 and the second spring 20, and the first protective plate 16 and the second protective plate 15 will move relative to the fixed cylinder 11 in the direction close to the fixed cylinder 11. At the same time, the first protective plate 16 drives the fourth connecting rod 23 to move downward through the first connecting cylinder 17, and the fourth connecting rod 23 drives the rack 25 to move downward through the fifth connecting rod 24, and the rack 25 drives the first threaded cylinder 26 to rotate through the gear 27. Since the first threaded rod 28 is threadedly connected to the first threaded cylinder 26, and the first threaded rod 28 is slidably connected to the fixed cylinder 11, the rotating first threaded cylinder 26 will drive the first threaded rod 28 to move rightward relative to the fixed cylinder 11, and the first threaded rod 28 drives the movable plate 29 to move rightward, and the movable plate 29 is connected to the sixth threaded cylinder 27. The connecting rod 30 drives the circular plate 31 and the second threaded cylinder 35 to move rightward. Since the second threaded cylinder 35 and the second threaded rod 32 are threadedly connected, and the second threaded rod 32 and the first protective plate 16 are fixedly connected, the second threaded cylinder 35 will rotate in the process of moving rightward, and the second threaded cylinder 35 drives the sliding rod 22 to rotate through the third spring 40. In this process, the sliding rod 22, the triangular plate 38, and the third spring 40 are similar to the ratchet structure in real life. When the second threaded cylinder 35 rotates due to moving rightward, the triangular plate 38 and the control cylinder 33 will be driven to rotate through the sliding rod 22, and the rotation direction of the control cylinder 33 and the second threaded cylinder 35 is the same. The control cylinder 33 drives the control plate 34 to rotate, and the control cylinder 33 stretches the torsion spring 37 to prevent the crushed stone from falling on the upper side of the first protective plate 16 and then stopping. The crushed stone can be automatically discharged from the upper side of the first protective plate 16, thereby improving the safety performance.

[0040] In the above working process, when gravel falls on the upper side of the first protective plate 16 or the second protective plate 15, the slide bar 22 is always located between the triangular plates 38 in the control cylinder 33, that is, the slide bar 22 can always drive the control cylinder 33 to rotate through the triangular plates 38, but when the first protective plate 16 and the inner wall of the coal mine are against each other, the coal mine will seriously hinder the first protective plate 16 from moving upward as a whole following the first connecting plate 5, and the first spring 19 and the second spring 20 are extremely compressed, which causes the moving plate 29 to move rightward as a whole. The distance is the maximum, and the slide bar 22 moves out from between the triangular plates 38 at this time, and the control cylinder 33 loses the power of the slide bar 22. Therefore, under the action of the torsion spring 37, the control cylinder 33 will be The control cylinder 33 and the control plate 34 rotate, and the control cylinder 33 and the control plate 34 abut against the inner wall of the coal mine, which will cause the first protection plate 16 to rotate as a whole with the first connecting plate 5 as the center, and the first protection plate 16 drives the first connecting plate 5 to rotate until the control cylinder 33 and the control plate 34 are disconnected from the side wall of the coal mine. At this time, under the action of the first spring 19 and the second spring 20, the first protection plate 16 and the second protection plate 15 return to their original positions relative to the fixed cylinder 11, and then in the process of the electromechanical equipment rising, when there is an obstacle that affects the rise of the electromechanical equipment, it can rotate and stagger with the obstacle, and can be automatically adjusted, with a high degree of automation and intelligence;

[0041] Then, when gravel falls on the upper side of the first protective plate 16 or the second protective plate 15, the movable plate 29 will move to the right, and the movable plate 29 will drive the movable ball 41 to move to the right. The movable ball 41 drives the extrusion plate 45 to move to the right through the seventh connecting rod 43, but at this time the moving distance of the extrusion plate 45 is short. Only when the first protective plate 16 and the inner wall of the coal mine are in contact, the moving distance of the movable plate 29 is large, which will cause the button switch 46 to be turned on, but the button switches 46 are in parallel, and only one button switch 46 is turned on, which cannot cause the hydraulic winch 2 to be turned off. However, when all the first protective plates 16 are in contact with the inner wall of the coal mine, it means that the size of the coal mine is not enough to complete the lifting operation of the electromechanical equipment, and all the button switches 46 are turned on, which will cause the control circuit of the hydraulic winch 2 to be disconnected, and the hydraulic winch 2 is turned off. At this time, the corresponding staff can be reminded.

Claims

1. A lifting device for coal mine mechanical and electrical installation, comprising a bracket (1) and two hydraulic winches (2) fixedly installed in the bracket (1), characterized in that: A plurality of legs (3) are threadedly mounted on the lower side of the bracket (1); a steel wire rope (4) is wound and connected to the outer sides of the two hydraulic winches (2); the lower ends of the steel wire ropes (4) are fixedly connected to a fixed plate, and the lower side of the fixed plate is rotatably connected to a first connecting plate (5); a plurality of first connecting rods (10) are rotatably mounted on the outer side of the first connecting plate (5); a fixed cylinder (11) is fixedly connected to the outer side of the first connecting rod (10); a rotating cylinder (6) is fixedly connected to the side wall of the fixed cylinder (11); a plurality of rotating cylinders (6) are internally threadedly connected to rotating rods (7); a protective rope (8) is fixedly connected to the outer side of the rotating rod (7); the lower ends of the plurality of protective ropes (8) are fixedly connected to a second connecting plate (9); and a protective component for electromechanical equipment is mounted on the outer side of the rotating cylinder (6). The protection assembly comprises a second connecting rod (18) fixedly mounted on the upper side of the rotating cylinder (6); the outer side of the second connecting rod (18) is slidably connected to the first connecting cylinder (17); a first spring (19) is fixedly connected between the second connecting rod (18) and the first connecting cylinder (17); a first protection plate (16) is fixedly connected to the upper side of the first connecting cylinder (17); a connecting ring (12) is rotatably connected to the outer side of the rotating rod (7); a third connecting rod (13) is fixedly connected to the outer side of the connecting ring (12); a second connecting cylinder (14) is slidably connected to the outer side of the third connecting rod (13); a second spring (20) is fixedly connected between the second connecting cylinder (14) and the third connecting rod (13); and a second protection plate (15) is fixedly connected to the upper side of the second connecting cylinder (14); A control assembly is installed in the fixed cylinder (11), and the control assembly includes a fourth connecting rod (23) fixedly installed on the lower side of the first connecting cylinder (17); a side wall of the fourth connecting rod (23) is fixedly connected to a rack (25) via a fifth connecting rod (24); a first threaded cylinder (26) is rotatably connected in the fixed cylinder (11); a gear (27) is fixedly connected to the outer side of the first threaded cylinder (26); the gear (27) and the rack (25) are meshed; a first threaded rod (28) is internally threadedly connected to the first threaded cylinder (26); the first threaded rod (28) and the fixed cylinder (11) are slidably connected; a movable plate (29) is fixedly connected to the outer side of the first threaded rod (28); the movable plate (29) is located in the fixed cylinder (11); a sixth connecting rod (30) is fixedly connected to the upper side of the movable plate (29); the sixth connecting rod (30) A circular plate (31) is fixedly connected to the upper side, a second threaded cylinder (35) is rotatably connected to the side wall of the circular plate (31), a second threaded rod (32) is threadedly connected to the inner side of the second threaded cylinder (35), the second threaded rod (32) and the first protection plate (16) are fixedly connected, a blocking rod (39) is slidably connected to the outer side of the second threaded cylinder (35), a third spring (40) is fixedly connected between the blocking rod (39) and the second threaded cylinder (35), a rotating ring (36) is rotatably connected to the outer side of the second threaded rod (32), a control cylinder (33) is fixedly connected to the outer side of the rotating ring (36), a plurality of triangular plates (38) are fixedly connected to the inner circumference of the control cylinder (33), a plurality of control plates (34) are fixedly connected to the outer circumference of the control cylinder (33), and a torsion spring (37) is fixedly connected between the rotating ring (36) and the first protection plate (16).

2. A lifting device dedicated to coal mine mechanical and electrical installation according to claim 1, characterized in that: A reminder component is installed in the first connecting plate (5), and the reminder component includes a plurality of groups of arc-shaped plates (42) fixedly installed on the outside of the first connecting plate (5); a seventh connecting rod (43) is slidably connected to the side wall of the arc-shaped plate (42); a moving ball (41) is fixedly connected to one side of the seventh connecting rod (43); the moving ball (41) and the moving plate (29) are in contact with each other; a pressing plate (45) is fixedly connected to the side of the seventh connecting rod (43) away from the moving ball (41); a fourth spring (44) is fixedly connected between the pressing plate (45) and the arc-shaped plate (42); and a button switch (46) is fixedly connected to the side wall of the first connecting plate (5).

3. A lifting device dedicated to coal mine mechanical and electrical installation according to claim 1, characterized in that: The outer side of the protection rope (8) is slidably sleeved with a rubber protection pad.

4. A lifting device dedicated to coal mine mechanical and electrical installation according to claim 1, characterized in that: Anti-slip rubber pads are fixedly connected to the outer sides of the first connecting plate (5) and the second connecting plate (9).

5. A lifting device dedicated to coal mine mechanical and electrical installation according to claim 4, characterized in that: A sliding groove (21) is formed on the lower side of the first protection plate (16), a sliding rod (22) is slidably connected in the sliding groove (21), and the sliding rod (22) is fixedly connected to the second protection plate (15).

6. A lifting device dedicated to coal mine mechanical and electrical installation according to claim 1, characterized in that: The upper surfaces of the first protection plate (16) and the second protection plate (15) are both smooth.

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