Lifting and transporting device

Abstract

The invention provides a lifting transportation device, and belongs to the technical field of material transportation. The lifting and transporting device comprises a rail assembly, a moving assembly, a connecting and guiding assembly and a coal transporting assembly. The moving assembly is located in the rail assembly, and the coal conveying assembly comprises two coal conveying skip buckets; the connecting guide assembly comprises two pulling ropes and a pulley block, the two pulling ropes correspond to the two coal conveying skip buckets one to one, and each pulling rope is connected with one end of the moving assembly in the length direction and the corresponding coal conveying skip bucket in the two coal conveying skip buckets. And the pulley block is connected with the two pulling ropes in a sliding mode, and the pulley block is configured to guide the two pulling ropes, so that when the moving assembly moves, one of the two coal conveying skip buckets ascends, and the other one of the two coal conveying skip buckets descends. The transportation cost can be reduced, and meanwhile the transportation safety is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of material transportation, and in particular relates to a lifting and transportation device. Background Art

[0002] In the process of energy extraction, it is often necessary to transport underground materials to the surface, for example, in the process of coal mining.

[0003] In the related art, many underground coal mines generally use lifting and transportation devices to transport coal underground. The lifting and transportation device includes a friction lifting winch, a traction rope, and a coal bucket. The traction rope is wound around the drum of the friction lifting winch, and the traction rope is connected to the coal bucket. In order to improve the transportation efficiency, there are two coal buckets, which are counterweights to each other and are connected by a counterweight rope. When one coal bucket is filled with coal and rises, the other coal bucket is empty and descends.

[0004] However, when the lifting friction winch is lifting the coal bucket, the lifting traction rope and the drum of the friction winch are transmitted through friction. Therefore, if the traction rope slips on the drum, it will cause the traction rope to rise and fall uncontrollably, which is very dangerous. In order to increase the friction force, a friction pad made of rubber material is provided on the drum. The friction pad increases the friction between the drum and the traction rope. However, the friction pad is easy to wear and needs to be replaced frequently. Moreover, the friction pad is not only complicated to replace, but also expensive, which increases the overall transportation cost. Summary of the invention

[0005] The embodiment of the present disclosure provides a lifting and transportation device, which can reduce transportation costs and improve transportation safety. The technical solution is as follows:

[0006] The embodiment of the present disclosure provides a lifting and transportation device, which comprises a track assembly, a moving assembly, a connecting and guiding assembly and a coal transport assembly; the moving assembly can move relative to the track assembly along the length direction of the track assembly; the coal transport assembly is located on one side of the track assembly along the length direction of the track assembly, and comprises two coal transport buckets connected by a counterweight rope; the connecting and guiding assembly comprises two traction ropes and a pulley block, the two traction ropes correspond to the two coal transport buckets one by one, the two traction ropes are respectively located at the two ends of the moving direction of the moving assembly, and the two ends of each of the two traction ropes are respectively connected to the moving assembly and a coal transport bucket corresponding to the traction rope; the pulley block is slidably connected to the two traction ropes, and the pulley block is configured to: guide the two traction ropes so that when the moving assembly moves, one of the two coal transport buckets rises and the other falls.

[0007] In another implementation of the present disclosure, the moving assembly includes a moving trolley and two guide wheels; the two guide wheels are respectively located at both ends of the moving direction of the moving trolley and are respectively connected to the moving trolley for rotation, and the rotation axis of the guide wheel is perpendicular to the moving direction of the moving trolley; the two guide wheels correspond one-to-one to the two traction ropes, and one end of each of the two traction ropes away from the connected coal bucket is wound around the outside of the corresponding guide wheel, and the traction rope wound around the outside of the guide wheel spans at least half of the circumference of the guide wheel, and the end of the traction rope wound around the outside of the guide wheel is fixed.

[0008] In another embodiment of the present disclosure, the track assembly includes two racks, and the two racks are parallel to each other; the mobile cart includes two rows of drive pinions, and the two rows of drive pinions correspond one-to-one to the two racks, and each row of drive pinions in the two rows of drive pinions includes a plurality of drive pinions, and each of the plurality of drive pinions is meshed with the corresponding rack.

[0009] In another implementation of the present disclosure, the track assembly also includes two wheel rails, and the two wheel rails are parallel to the rack rail; the mobile cart also includes two rows of running wheels, and the two rows of running wheels correspond one-to-one to the two wheel rails, and each of the two rows of running wheels includes a plurality of running wheels, and at least a portion of each of the plurality of running wheels is movably located in the corresponding wheel rail.

[0010] In another implementation of the present disclosure, the lifting and transporting device also includes a telescopic assembly, the telescopic assembly including a support unit and two telescopic units, the support unit is located outside the track assembly, the two telescopic units are respectively located at both ends of the moving direction of the moving assembly and are connected to the support unit, the two telescopic units correspond one-to-one to the two traction ropes; each of the two telescopic units is located at the bottom of the corresponding traction rope and contacts the corresponding traction rope to support the traction rope, and the telescopic unit can be extended and retracted along the length direction of the track assembly as the traction rope it contacts moves.

[0011] In another implementation of the present disclosure, the support unit includes two guide rails and two groups of support arms, the two guide rails are parallel to each other and are located on one side of the track assembly along a direction perpendicular to the length direction of the track assembly, and the length direction of each of the two guide rails is the same as the length direction of the track assembly; the two groups of support arms correspond one-to-one to the two guide rails, each group of support arms in the two groups of support arms includes a plurality of support arms, and the plurality of support arms in the same group are connected to the corresponding guide rail at intervals along the length direction of the guide rail on the side of the track assembly, and the support arms intersect with the plane where the two guide rails are located.

[0012] In another embodiment of the present disclosure, the telescopic unit includes a plurality of sliding members and a plurality of hinges, wherein the plurality of sliding members are located between the two guide rails at intervals along the length direction of the guide rails, each of the plurality of sliding members is respectively connected to the two guide rails, and the sliding member contacts one of the traction ropes to support the contacted traction rope; each of the plurality of hinges is located between two adjacent sliding members and is hinged to the two adjacent sliding members to change the spacing between the two adjacent sliding members.

[0013] In another implementation of the present disclosure, the sliding member includes a sliding rod and two guide blocks; the two guide blocks are respectively connected to both ends of the sliding rod, and each of the two guide blocks is in sliding contact with one of the guide rails; the sliding rod is hinged to the adjacent hinge member near the outer wall of the guide block.

[0014] In yet another implementation of the present disclosure, the sliding member further comprises a roller, which is coaxially sleeved outside the middle portion of the sliding rod and is rotationally connected to the sliding rod, and an outer wall of the roller is in contact with the traction rope.

[0015] In yet another implementation of the present disclosure, the hinged member includes two hinged arms hinged to each other, and the two hinged arms are hinged to two adjacent sliding members respectively.

[0016] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0017] When the lifting and transporting device provided by the embodiment of the present disclosure is used for coal transportation, since the lifting and transporting device includes a track assembly, a moving assembly, a connecting guide assembly, and a coal transport assembly, and the coal transport assembly includes two coal transport buckets, the coal can be loaded through the two coal transport buckets. At the same time, since the moving assembly can move along the length direction of the track assembly relative to the track assembly, and each traction rope is respectively connected to one end of the moving assembly and a corresponding coal transport bucket, when the moving assembly moves along the track assembly, the coal transport bucket can be pulled by the two traction ropes.

[0018] Since the pulley block is slidingly connected to the two traction ropes respectively, the pulley block is configured to guide the two traction ropes so that when the moving component moves, one of the two coal buckets rises and the other falls. In this way, when the moving component moves back and forth, it can continuously lift one of the two coal buckets and lower the other at the same time, so as to transport the coal in the coal bucket from underground to the ground.

[0019] Since the above lifting and transporting device drives the coal bucket to rise or fall by moving the moving components, it is possible to avoid using a friction lifting winch to drive the coal bucket to rise or fall, thereby avoiding constant replacement of friction pads, reducing transportation costs, and simplifying the transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of a lifting and transporting device in the related art;

[0022] Figure 2 is a schematic structural diagram of a lifting and transporting device provided in an embodiment of the present disclosure;

[0023] Figure 3 yes Figure 2 Schematic diagram of the structure of the mobile component;

[0024] Figure 4 yes Figure 1 Left view of

[0025] Figure 5 yes Figure 1 A top view of

[0026] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0027] Figure 7 yes Figure 2 Structural schematic diagram of the middle support unit;

[0028] Figure 8 yes Figure 2 A schematic diagram of the structure of the upper middle part of the telescopic assembly on the middle right;

[0029] Fig. 9 yes Figure 4 Enlarged view of point B in the middle;

[0030] Fig.10 yes Figure 2 A schematic diagram of the partial structure of the telescopic component;

[0031] Fig.11 yes Fig.10 Cross-sectional view along CC direction;

[0032] Fig.12 It is a structural diagram of an articulated arm.

[0033] The symbols in the figure mean the following:

[0034] 1. Track assembly; 11. Rack rail; 12. Wheel rail;

[0035] 2. Mobile assembly; 22. Mobile trolley; 221. Support body; 2210. Cavity; 222. Driving pinion; 223. Traveling wheel; 224. Driving unit; 2241. Driving motor; 2242. Gear box; 2243. Brake; 23. Guide wheel; 231. Connector;

[0036] 3. Connecting guide assembly; 31. Traction rope; 33. Pulley block; 330. Pulley unit; 34. Connecting frame;

[0037] 4. Coal transport assembly; 41. Coal transport bucket; 40. Counterweight rope;

[0038] 5. telescopic assembly; 51. support unit; 511. guide rail; 510. guide groove; 5110. sliding surface; 512. support arm; 52. telescopic unit; 521. sliding member; 5211. first sliding member; 5212. second sliding member; 5213. third sliding member; 5001. sliding rod; 5002. guide block; 5003. roller; 5004. baffle; 522. hinge; 5220. hinged arm; 5221. wire rope; 5222. lock;

[0039] 100. Roller; 101. Guide pulley. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0041] Figure 1 It is a structural schematic diagram of a lifting and transporting device in the related art, such as Figure 1As shown, in the related art, many underground coal mines generally use friction lifting winches, traction ropes 31, and coal buckets 41 to transport coal underground. The traction rope 31 is wound around the outside of the drum 100 of the friction lifting winch, and the traction rope 31 is connected to the coal bucket 41. In order to improve the transportation efficiency, there are two coal buckets 41, and the traction rope 31 between the two coal buckets 41 crosses the drum 100, so that the two coal buckets 41 are located on both sides of the drum 100. The two coal buckets 41 are counterweights for each other. When one coal bucket 41 is filled with coal and rises, the other coal bucket 41 is empty and descends. In order to balance the weight of the traction rope 31, a counterweight rope 40 is connected to the bottom of the two coal buckets 41. In this way, the friction lifting winch only provides the driving force to drive the weight of the coal to rise.

[0042] When the lifting friction winch lifts the coal bucket, the traction rope and the drum are driven by friction. The traction rope and the drum are relatively static, that is, the linear speed of the drum surface and the linear speed of the traction rope are the same. The drum is driven by a drive motor. After the drum rotates, it drives the traction rope to rise and fall. Therefore, the lifting power of the coal bucket is completely transmitted by the friction between the traction rope and the drum. If the traction rope slips on the drum, it will cause the traction rope to rise and fall uncontrollably, which is very dangerous.

[0043] In addition, in order to increase the winding angle of the traction rope on the drum, the above transport device will be equipped with a guide pulley 101, and at the same time increase the weight of the coal bucket to make the weight difference on both sides of the drum as small as possible, thereby reducing the effective lifting friction required.

[0044] The present disclosure provides a lifting and transporting device, such as Figure 2 As shown, the lifting and transporting device includes a track component 1, a moving component 2, a connecting guide component 3 and a coal transport component 4.

[0045] The moving assembly 2 can move relative to the track assembly 1 along the length direction of the track assembly 1. The coal transport assembly 4 is located at one side of the track assembly 1 along the length direction of the track assembly 1 and includes two coal transport buckets 41 connected by a counterweight rope 40.

[0046] The connecting guide assembly 3 includes two traction ropes 31 and a pulley block 33. The two traction ropes 31 correspond to the two coal buckets 41 one by one. The two traction ropes 31 are respectively located at the two ends of the moving direction of the moving assembly 2, and the two ends of each of the two traction ropes 31 are respectively connected to the moving assembly 2 and a coal bucket 41 corresponding to the traction rope 31. The pulley block 33 is respectively connected to the two traction ropes 31 in a sliding manner. The pulley block 33 is configured to guide the two traction ropes 31 so that when the moving assembly 2 moves, one of the two coal buckets 41 is rising and the other is falling.

[0047] When the lifting and transporting device provided by the embodiment of the present disclosure is used for coal transportation, since the lifting and transporting device includes a track assembly 1, a moving assembly 2, a connecting guide assembly 3 and a coal transport assembly 4, and the coal transport assembly 4 includes two coal transport buckets 41, the coal can be loaded through the two coal transport buckets 41. At the same time, since the moving assembly 2 can move along the length direction of the track assembly 1 relative to the track assembly 1, and each traction rope 31 is respectively connected to one end of the moving assembly 2 and a corresponding coal transport bucket 41, when the moving assembly 2 moves along the track assembly 1, the coal transport bucket 41 can be pulled by the two traction ropes 31.

[0048] Since the pulley block 33 is slidingly connected to the two traction ropes 31 respectively, the pulley block 33 is configured to guide the two traction ropes 31 so that when the moving component 2 moves, one of the two coal buckets 41 rises and the other falls. In this way, when the moving component 2 moves back and forth, it can continuously lift one of the two coal buckets 41 and lower the other at the same time, so as to transport the coal in the coal bucket 41 from underground to the ground.

[0049] Since the above lifting and transporting device drives the coal bucket 41 to rise or fall by moving the moving component 2, it is possible to avoid using a friction lifting winch to drive the coal bucket 41 to rise or fall, thereby avoiding constant replacement of friction pads, reducing transportation costs, and simplifying the transportation process.

[0050] Figure 3 yes Figure 2 Schematic diagram of the structure of the mobile component, combined with Figure 3 Optionally, the moving assembly 2 includes a moving trolley 22 and two guide wheels 23. The two guide wheels 23 are respectively located at both ends of the moving direction of the moving trolley 22 and are respectively connected to the moving trolley 22 in rotation, and the rotation axis of the guide wheels 23 is perpendicular to the moving direction of the moving trolley 22. The two guide wheels 23 correspond to the two traction ropes 31 one by one, and one end of each traction rope 31 away from the connected coal bucket 41 is wound around the corresponding guide wheel 23, and the traction rope 31 wound around the guide wheel 23 spans at least half of the circumference of the guide wheel 23, and the end of the traction rope 31 wound around the guide wheel 23 is fixed.

[0051] In the disclosed embodiment, a connecting frame 34 is provided at the track assembly 1. The connecting frame 34 is fixed together with the track assembly 1 or fixed in the use site of the lifting and transporting device. One end of each traction rope 31 away from the connected coal bucket 41 is fixedly connected to the connecting frame 34 through a lock. Then each traction rope 31 is wound around the top of the corresponding guide wheel 23 along the bottom of the guide wheel 23, and is connected to the coal bucket 41 through the pulley block 33.

[0052] In the above implementation, the moving trolley 22 is used to move relative to the track assembly 1 along the length direction of the track assembly 1. The guide wheel 23 is used to be connected to the two traction ropes 31, so that while following the movement of the guide wheel 23, it can move with the corresponding traction ropes 31, so as to drive the coal bucket 41 to move up and down.

[0053] Moreover, since the traction rope 31 wrapped around the outside of the guide wheel 23 spans at least half of the circumference of the guide wheel 23, and the end of the traction rope 31 wrapped around the outside of the guide wheel 23 is fixed, the guide wheel 23 is essentially a movable pulley. In this way, guide wheels 23 are respectively provided at both ends of the moving trolley 22. The guide wheels 23 can be used to make the moving distance of the moving trolley 22 half of the moving distance of the traction rope 31, thereby reducing the moving distance of the moving trolley 22, thereby reducing the length of the track assembly 1, and greatly reducing the volume of the lifting and transportation device.

[0054] That is to say, by providing guide wheels 23 at the front and rear ends of the moving trolley 22, a two-fold rate relationship can be formed between the two traction ropes 31 and the moving trolley 22. That is, the speed of the traction rope 31 is twice that of the moving trolley 22, but the driving force required by the moving trolley 22 to drive the coal bucket 41 to rise and fall is twice the load difference of the two traction ropes 31 lifting the coal bucket 41, and the travel of the moving trolley 22 is half of the travel of the coal bucket 41.

[0055] When the moving car 22 is facing Figure 1 When the moving trolley 22 moves to the left, the traction rope 31 on the left side of the moving trolley 22 drives the connected coal bucket 41 to move downward, and at the same time, the traction rope 31 on the right side drives the connected coal bucket 41 to move upward. Figure 1 When the right side of the moving trolley 22 moves, the traction rope 31 located on the left side of the moving trolley 22 drives the connected coal transport bucket 41 to move upward, and at the same time, the traction rope 31 on the right side drives the connected coal transport bucket 41 to move downward.

[0056] For example, the net weight of the coal bucket itself is 150 tons, the rated coal loading is 150 tons, and the weight of the counterweight rope 40 within the lifting height range is 50 tons. When transporting coal, the two coal buckets 41 are counterweights to each other, and only one coal bucket 41 is in the coal loading state. Therefore, the tension of a traction rope 31 for lifting the coal bucket 41 is about 350 tons, and the tension of another traction rope 31 for lowering the coal bucket 41 is about 200 tons. The load difference between the two traction ropes 31 is 150 tons, that is, the weight of coal. However, due to the multiplier, the mobile component 2 needs to provide a driving force of 300 tons. Due to the large production capacity requirements of underground coal mines, the lifting speed of the coal bucket 41 is very fast, up to 18m / s, and the corresponding moving speed of the mobile component 2 is 9m / s (due to the multiplier), that is, the mobile component 2 needs to provide a horizontal driving force of 300 tons, and the speed is 9m / s. The lifting stroke of the coal transporting bucket 41 is 700 meters, and the corresponding stroke of the mobile trolley 22 is 350 meters.

[0057] In this embodiment, the pulley block 33 includes four pulley units 330, two of which are located at the two ends of the track assembly 1 in the length direction and fixed to the ground through a bracket. The other two pulley units 330 are located outside the wellbore and at a certain height from the ground. The two traction ropes 31 include a first traction rope 31a (located at Figure 2 The traction rope on the left side of the middle) and the second traction rope 31b (located at Figure 2 One end of the first traction rope 31a is connected to the left side of the track assembly 1, and the other end is wound around the guide wheel 23 on the left side, and passes through a pulley unit 330 on the ground and a pulley unit 330 in the air, and is connected to the top of the coal bucket 41 on the right side. One end of the second traction rope 31b is connected to the right side of the track assembly 1, and the other end is wound around the guide wheel 23 on the right side, and passes through a pulley unit 330 on the ground and a pulley unit 330 in the air, and is connected to the top of the coal bucket 41 on the left side.

[0058] In other examples, the moving component 2 can be directly configured as a moving cart without providing the guide wheels 23 , and the two traction ropes 31 can be directly connected to the front and rear ends of the moving cart.

[0059] In the disclosed embodiment, each traction rope 31 is formed by a plurality of steel cables arranged side by side. Correspondingly, each pulley unit 330 includes a plurality of pulleys corresponding to the plurality of steel cables arranged side by side. Each steel cable is located in a guide groove of a corresponding pulley.

[0060] Figure 4 yes Figure 1 The left view of Figure 4Optionally, the track assembly 1 includes two racks 11, and the two racks 11 are parallel to each other. The moving trolley 22 includes two rows of driving pinions 222, and the two rows of driving pinions 222 correspond to the two racks 11 one by one. Each row of driving pinions 222 in the two rows of driving pinions 222 includes a plurality of driving pinions 222, and each of the plurality of driving pinions 222 is meshed with the corresponding rack 11.

[0061] In the above implementation, the rack 11 is used to mesh with the driving pinion 222, so that when the driving pinion 222 rotates, the driving pinion 222 meshes with the rack 11 and can move along the rack 11, thereby moving the moving trolley 22.

[0062] Continue to see Figure 4 Optionally, the track assembly 1 further includes two wheel rails 12, and the two wheel rails 12 are parallel to the rack rail 11. The moving trolley 22 further includes two rows of running wheels 223, and the two rows of running wheels 223 correspond to the two wheel rails 12 one by one. Each row of running wheels 223 in the two rows of running wheels 223 includes a plurality of running wheels 223, and at least a portion of each running wheel 223 in the plurality of running wheels 223 is movably located in the corresponding wheel rail 12.

[0063] In the above implementation, the wheel rail 12 is used to provide a track for the movement of the running wheel 223, so that the running wheel 223 can only move along the length direction of the wheel rail 12. The running wheel 223 is arranged in the moving trolley 22, and the friction of the moving trolley 22 during movement can be reduced by the rolling of the running wheel 223 in the wheel rail 12, so that the moving trolley 22 can move more easily.

[0064] Optionally, the mobile vehicle 22 further includes a support body 221 and a driving unit 224, a plurality of driving pinions 222 and a plurality of running wheels 223 are all located at the bottom of the support body 221, and the plurality of driving pinions 222 and the plurality of running wheels 223 are all rotatably connected to the support body 221. The driving unit 224 is located in the support body 221 and is connected to the plurality of driving pinions 222 so that the driving pinions 222 rotate.

[0065] In the above implementation, the rack 11 is used to mesh with the driving pinion 222, so that when the driving pinion 222 rotates under the drive of the driving unit 224, the driving pinion 222 meshes with the rack 11 and can move along the rack 11, thereby moving with the moving vehicle 22.

[0066] The support body 221 is used to be connected to the driving pinion 222 and the driving unit 224 so as to provide a mounting base for the driving pinion 222 and the driving unit 224 .

[0067] In this embodiment, the driving unit 224 includes a plurality of driving motors 2241 , a plurality of gear boxes 2242 , and a plurality of brakes 2243 , which are arranged in a one-to-one correspondence with the driving pinions 222 .

[0068] The driving motor 2241 is connected to the input end of the corresponding gear box 2242, and the output end of the gear box 2242 is connected to the corresponding driving pinion 222. The brake 2243 is connected to the corresponding driving motor 2241.

[0069] When the moving assembly 2 needs to be moved, the brake 2243 is turned on, and each driving motor 2241 is turned on. The driving motor 2241 drives the corresponding driving pinion 222 to rotate through the corresponding gear box 2242, and the driving pinion 222 moves along the rack 11 under the meshing with the rack 11. When the moving assembly 2 needs to be braked, the driving motor 2241 can be controlled to stop, and the brake 2243 is turned on at the same time to brake the driving pinion 222.

[0070] In this embodiment, in a general underground coal mine, the net weight of the coal bucket itself is 150 tons, the rated coal loading is 150 tons, and the weight of the counterweight rope 40 within the lifting height range is 50 tons. When transporting coal, the two coal buckets 41 are counterweights for each other, and only one coal bucket 41 is in the coal loading state. Therefore, the tension of one traction rope 31 for lifting the coal bucket 41 is about 350 tons, and the tension of the other traction rope for lifting the coal bucket 41 is about 200 tons. The load difference between the two traction ropes 31 is 150 tons, which is the weight of the coal. However, due to the multiplier, the moving component 2 needs to provide a driving force of 300 tons.

[0071] Due to the large production capacity requirements of underground coal mines, the lifting speed of the coal transporting bucket 41 is very fast, which can reach up to 18m / s at most. The moving speed of the corresponding mobile assembly 2 is 9m / s (due to the magnification), that is, the mobile assembly 2 will provide a horizontal driving force of 300 tons, and the speed is 9m / s. Since the lifting stroke of the coal transporting bucket 41 is 700 meters, the stroke of the corresponding mobile assembly 2 is 350 meters. Although the guide wheel 23 reduces the stroke of the mobile trolley 22, the 350-meter-long stroke is difficult to be reliably realized by conventional drive mechanisms, and the gear rack is large due to the long stroke and the load, and the adjustable stroke is the first choice. However, due to the manufacturing process, the gear meshing speed in general engineering is low, and it is difficult to reach the meshing speed of 9m / s. Therefore, the mechanism of high-speed gear rack meshing in coal mines is very rare. However, the rack train with a speed of up to 11m / s on the railway, that is, the train that obtains high-speed motion by gear rack transmission has been successfully developed. The disclosed embodiment applies the high-speed rack and pinion meshing mechanism manufacturing of the railway industry to underground coal mines, that is, the rack rail 11, wheel rail 12, driving pinion 222 and walking wheel 223 in the railway industry are adopted to realize the high-speed and long-travel travel of the mobile component 2.

[0072] In addition, since the moving vehicle 22 needs to provide a total driving force of 300 tons, and since the driving force of each driving pinion 222 is about 25 tons, in this embodiment, there are 12 driving units 224 and 12 driving pinions 222. That is, each rack 11 has 6 driving pinions 222 meshing therewith. After calculation, its strength and lifespan meet the requirements.

[0073] The structure of the running wheels 223 is similar to that of the running wheels of a train. Three sets of running wheels are provided on each wheel track 12, for a total of six sets of running wheels. The running wheels 223 roll at high speed on the wheel track 12, driving the entire mobile trolley 22 to move horizontally. In order to improve the stability of the mobile trolley 22, each set of running wheels 223 is located between two adjacent driving pinions 222 along the length direction of the wheel track 12.

[0074] In this embodiment, the cross section and specifications of the wheel rail 12 refer to the structure of the train track. The rack rail 11 is a single-sided tooth, and the tooth surface is arranged toward the driving pinion 222. The installation of the rack rail 11 and the wheel rail 12 is similar to that of the train track. First, the foundation (including rail sleepers, sand and gravel, etc.) needs to be laid, and then connected to the foundation with movable fasteners or fasteners.

[0075] Optionally, the two rack rails 11 are located between the two wheel rails 12. In this way, the running wheels 223 are located on both sides of the support body 221 to stably support the support body 221, so that the moving trolley 22 does not shake but remains stable when moving.

[0076] In this embodiment, the bottom of the support body 221 has a cavity 2210 for accommodating the driving unit 224 .

[0077] Figure 5 yes Figure 1 A top view of Figure 5 Optionally, the lifting and transporting device also includes a telescopic assembly 5, the telescopic assembly 5 includes a support unit 51 and two telescopic units 52, the support unit 51 is located outside the track assembly 1, the two telescopic units 52 are respectively located at both ends of the moving direction of the moving assembly 2 and are connected to the support unit 51, and the two telescopic units 52 correspond one by one to the two traction ropes 31.

[0078] Each telescopic unit 52 is located at the bottom of the corresponding traction rope 31 and contacts the corresponding traction rope 31 to support the traction rope 31. The telescopic unit 52 can move along the length direction of the track assembly 1 ( Figure 2 Direction a) Extension and contraction.

[0079] In the above implementation, the telescopic assembly 5 is used to support the traction rope 31 to prevent the traction rope 31 from sagging and affecting the lifting of the coal bucket 41. Among them, the support unit 51 is used to provide an installation basis for the telescopic unit 52, and the telescopic unit 52 is used to support the corresponding traction rope 31 to prevent it from sagging.

[0080] Since the horizontal movement distance of the moving trolley 22 is long, the length of the traction rope 31 wrapped around the guide wheels 23 at both ends of the moving trolley 22 is constantly changing. When the length of the traction rope 31 is long, the traction rope 31 will sag like an electric wire due to its own gravity. The longer the length, the more serious the sag, so the middle part of the traction rope 31 needs to be supported.

[0081] Since the telescopic unit 52 can be extended and retracted along the length direction of the track assembly 1 as the contacted traction rope 31 moves, the telescopic unit 52 will not interfere with the moving trolley 22 due to the movement of the moving trolley 22, and can also support the traction rope 31 to prevent it from sagging. In other words, the telescopic unit 52 can support the traction rope 31 and can be extended and retracted along with the moving assembly 2 without hindering the operation of the moving assembly 2.

[0082] The support unit 51 mentioned above is located outside the track assembly 1, which means that the support unit 51 is located outside the two racks 11 in the track assembly 1 and outside the two wheel rails 12. In this embodiment, the two racks 11 and the two wheel rails 12 are located on the ground, and the support unit 51 is located above the track assembly 1.

[0083] Figure 6 yes Figure 5 The enlarged picture of C in the middle, combined with Figure 6 Optionally, the support unit 51 includes two guide rails 511 and a plurality of support arms 512, the two guide rails 511 are parallel to each other and are located on one side of the track assembly 1 along a direction perpendicular to the length direction of the track assembly 1, and the length direction of each of the two guide rails 511 is the same as the length direction of the track assembly 1.

[0084] The two groups of support arms 512 correspond one-to-one to the two guide rails 511. Each group of support arms 512 in the two groups of support arms 512 includes multiple support arms 512, and the multiple support arms 512 in the same group are connected to the side of the corresponding guide rail 511 facing the track assembly 1 at intervals along the length direction of the guide rail 511, and the support arms 512 intersect with the plane where the two guide rails 511 are located.

[0085] Combination Figure 6 The plane where the two guide rails 511 are located is the plane where the paper is located. The support arm 512 is located on one side of the plane where the paper is located, and the length direction of the support arm 512 is perpendicular to the paper or the support arm 512 intersects with the paper.

[0086] In the above implementation, the guide rail 511 is used to provide an installation basis for the telescopic unit 52, and the support arm 512 is used to support the guide rail 511 so that the guide rail 511 can be suspended above the track assembly 1 and off the ground.

[0087] Figure 7 yes Figure 2 Schematic diagram of the structure of the middle support unit, combined with Figure 7 In this embodiment, the support arm 512 is vertically connected to the guide rail 511, and the support arm 512 is used to support the guide rail 511. One end of the support arm 512 is welded or bolted to the guide rail 511, and the other end is fixed on the ground.

[0088] See also Figure 5 and Figure 6 Optionally, the telescopic unit 52 includes a plurality of sliding members 521 and a plurality of hinges 522. The plurality of sliding members 521 are spaced between two guide rails 511 along the length direction of the guide rails 511, and both ends of each sliding member 521 are respectively connected to the two guide rails 511, and each sliding member 521 is in contact with a traction rope 31 to support the traction rope 31 in contact.

[0089] Figure 8 yes Figure 2 The structural diagram of the upper part of the telescopic component on the right side of the middle, combined with Figure 8 Each hinged member 522 among the plurality of hinged members 522 is located between two adjacent sliding members 521 and is hinged to two adjacent sliding members 521 to change the interval between the two adjacent sliding members 521 .

[0090] In the above implementation, since a hinge 522 is set between two adjacent sliding members 521, when the moving component 2 moves and the sliding member 521 follows the movement, the hinge 522 hinged to the sliding member 521 will push the other adjacent sliding member 521 to move to form a relay, and finally retract all the sliding members 521 into a gathered state or stretch them into an elongated state.

[0091] In this embodiment, the multiple sliding members 521 include a first sliding member 5211, multiple second sliding members 5212 and a third sliding member 5213. The multiple second sliding members 5212 are located between the first sliding member 5211 and the third sliding member 5213, and the third sliding member 5213 is located between the first sliding member 5211 and the moving component 2. The first sliding member 5211 is connected to the track component 1, and the third sliding member 5213 is connected to the moving component 2. The multiple second sliding members 5212 and the third sliding member 5213 can move close to or away from the first sliding member 5211.

[0092] Since the first sliding member 5211 is connected to the track assembly 1, and the third sliding member 5213 is connected to the moving assembly 2, the first sliding member 5211 is fixed and will not move. The second sliding member 5212 and the third sliding member 5213 can move relative to the first sliding member 5211. Therefore, when the moving assembly 2 moves, the third sliding member 5213 will move synchronously with the moving assembly 2 in the same direction.

[0093] Since a hinge 522 is provided between two adjacent sliding members 521, when the third sliding member 5213 moves, the hinge 522 hinged to the third sliding member 5213 will push the adjacent second sliding member 5212 to form a relay, and finally retract all the sliding members 521 into a gathered state or stretch them into an extended state.

[0094] Combination Figure 3 In order to facilitate the connection between the third sliding member 5213 and the moving component 2, connecting members 231 are respectively provided at both ends of the moving direction of the moving component 2. The connecting member 231 is connected to the nearest guide wheel 23, and the connecting member 231 is connected to the third sliding member 5213 in the adjacent telescopic unit 52.

[0095] Combination Figure 4 Optionally, each sliding member 521 includes a sliding rod 5001 and two guide blocks 5002. The two guide blocks 5002 are respectively connected to the two ends of the sliding rod 5001 in the length direction, and each of the two guide blocks 5002 is located in a guide rail 511 and is in sliding contact with the guide rail 511. The sliding rod 5001 is hinged to the adjacent hinge member 522 near the outer wall of the guide block 5002.

[0096] In the above implementation, the sliding rod 5001 is used to support the traction rope 31 and provide a mounting base for the guide block 5002. The guide block 5002 is used to cooperate with the guide rail 511 so that the sliding member 521 can only move along the length direction of the guide rail 511.

[0097] Moreover, the guide block 5002 is used to be hinged with the hinge 522, so that two adjacent sliding members 521 can be telescopically connected together.

[0098] Combination Figure 4 For example, when the moving component 2 moves to the left, in the telescopic unit 52 located on the left, the moving component 2 drives the third sliding member 5213 to move to the left, and the guide block 5002 in the third sliding member 5213 will push the adjacent guide block 5002 to form a relay, and finally retract the left sliding member 521 to a gathered state.

[0099] At the same time, in the telescopic unit 52 on the right, the moving component 2 pulls the third sliding member 5213 on the right to move leftward. Under the relay pulling action of the hinge 522, each sliding member 521 and the corresponding guide block 5002 are pulled apart from each other, and the sliding member 521 on the right is in an extended state.

[0100] Although the distances between the sliding members 521 are not necessarily the same during the movement, the maximum distance between the sliding members 521 is also determined due to the connection of the hinge 522, so the traction rope 31 can be effectively lifted and supported to prevent sagging.

[0101] Combination Figure 4 Optionally, the sliding member 521 further includes a roller 5003 , which is coaxially sleeved outside the middle portion of the sliding rod 5001 and is rotationally connected to the sliding rod 5001 , and the outer wall of the roller 5003 is in contact with the traction rope 31 .

[0102] In the above implementation, the roller 5003 rolls relative to the sliding rod 5001 , and acts like a bearing to support the traction rope 31 , thereby reducing the friction between the traction rope 31 and the sliding member 521 .

[0103] Fig. 9 yes Figure 4 The enlarged picture of B in the middle, combined with Fig. 9 In this embodiment, each guide rail 511 has a guide groove 510 inside, and the guide groove 510 is in a long strip shape, and the length direction of the guide groove 510 is the length direction of the guide rail 511. The guide block 5002 is a rectangular block, and the guide block 5002 is connected to the end of the sliding rod 5001 through a thread. The guide block 5002 is located in the guide groove 510 and fits with the groove wall of the guide groove 510 to form a sliding friction pair.

[0104] Fig.10 yes Figure 2 Partial structural diagram of the telescopic component. Fig.11 yes Fig.10 The cross-sectional view along the CC direction, combined with Fig.10 and Fig.11 The groove wall of the guide groove 510 is provided with a sliding surface 5110 with a small friction coefficient, and the sliding surface 5110 is made of copper-based alloy material or polymer material.

[0105] Combination Fig. 9Optionally, the sliding member 521 further includes two baffles 5004, which are respectively connected to the two ends of the sliding rod 5001, and the two baffles 5004 correspond to the two guide blocks 5002. Each baffle 5004 is located on a side of the corresponding guide block 5002 facing the other guide block 5002, and is spaced from the corresponding guide block 5002. The hinge 522 is located between the guide block 5002 and the corresponding baffle 5004.

[0106] The baffle 5004 can limit the hinged portion of the hinge 522 and the sliding member 521 between the guide block 5002 and the corresponding baffle 5004, thereby preventing the hinge 522 from interfering with the traction rope in the middle.

[0107] In this embodiment, the baffle 5004 is a circular ring structure and is welded to the sliding rod 5001 .

[0108] See also Figure 8 Optionally, the hinged member 522 includes two hinged arms 5220 hinged to each other, and the two hinged arms 5220 are hinged to two adjacent sliding members 521 respectively.

[0109] In the above implementation, the hinged arm 5220 is used to hinge two adjacent sliding members 521 together.

[0110] That is, each hinge 522 includes Figure 8 As shown, at the first articulated arm (the articulated arm on the left) and the second articulated arm (the articulated arm on the right), one end of the first articulated arm is hinged to one sliding member 521 of two adjacent sliding members 521, the other end of the first articulated arm is hinged to one end of the second articulated arm, and the other end of the second articulated arm is hinged to the other sliding member 521 of the two adjacent sliding members 521.

[0111] Fig.12 It is a schematic diagram of the structure of the articulated arm, combined with Fig.12 In this embodiment, the articulated arm 5220 is a steel wire rope section, and the articulated arm 5220 includes a steel wire rope 5221 and two lock buckles 5222. The two lock buckles 5222 are respectively connected to the two ends of the steel wire rope 5221, and are respectively articulated with another articulated arm 5220 adjacent to the articulated arm 5220 and the sliding member 521.

[0112] The two lock buckles 5222 are lock buckles with a male and a female pin hole. Since the steel wire rope segment has a certain hardness, when many steel wire rope segments are contracted together, they will not be entangled with each other and cannot be separated.

[0113] The following briefly introduces the working process of the lifting and transporting device provided by the embodiment of the present disclosure:

[0114] In the initial state, the coal bucket 41 on the right is on the ground and is in a coal unloading state, and the coal bucket 41 on the left is at the bottom of the shaft and is in a coal loading state. The moving assembly 2 is at the leftmost side of the track assembly 1, and the brakes 2243 of each driving unit 224 are in a braking state.

[0115] When the coal in the right coal bucket 41 has been completely unloaded and needs to be lowered, and the coal in the left coal bucket 41 has been completely filled and needs to be lifted, the brakes 2243 in the drive unit 224 in the mobile assembly 2 are opened, the drive motor 2241 is started, and the drive pinion 222 is meshed with the rack 11 of the track assembly 1 to drive the entire mobile trolley 22 to roll to the right on the wheel rail 12. The traction rope 31 on the left side is driven to lift the left coal bucket 41 to move upward, and at the same time, the traction rope 31 on the right side lifts the right coal bucket 41 to move downward. The telescopic unit 52 on the left side gradually changes from a gathered state to an extended state, effectively lifting and supporting the traction rope 31, and the telescopic unit 52 on the right side gradually changes from an extended state to a gathered state. In the final state, the coal bucket 41 on the left side rises above the ground, and the coal bucket 41 on the right side descends into the well.

[0116] When the right coal transport bucket 41 is fully loaded with coal and the left coal transport bucket 41 is fully unloaded with coal and needs to be lifted and lowered in the next step, the moving assembly 2 only needs to move in the opposite direction (toward the left), and the specific process will not be repeated here.

[0117] In the disclosed embodiment, the mobile assembly 2 continuously performs reciprocating horizontal motion on the track assembly 1, converting the horizontal motion into the vertical lifting motion of the coal transport bucket 41, thereby realizing the rapid mining and transportation of underground coal.

[0118] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A lifting and transporting device, characterized in that: The lifting and transporting device comprises a track component (1), a moving component (2), a connecting and guiding component (3) and a coal transporting component (4); The moving component (2) is connected to the track component (1) and is capable of moving relative to the track component (1) along the length direction of the track component (1); The coal transport assembly (4) is located on one side of the track assembly (1) along the length direction of the track assembly (1), and comprises two coal transport buckets (41) connected by a counterweight rope (40); The connecting guide assembly (3) comprises two traction ropes (31) and a pulley block (33), the two traction ropes (31) corresponding to the two coal transport buckets (41) one by one, the two traction ropes (31) being respectively located at two ends of the moving direction of the moving assembly (2), and the two ends of each traction rope (31) of the two traction ropes (31) are respectively connected to the moving assembly (2) and one of the coal transport buckets (41) corresponding to the traction rope (31); The pulley block (33) is slidably connected to the two traction ropes (31) respectively, and the pulley block (33) is configured to guide the two traction ropes (31) so that when the moving component (2) moves, one of the two coal transport buckets (41) rises and the other falls.

2. The lifting and transporting device according to claim 1, characterized in that: The moving assembly (2) comprises a moving trolley (22) and two guide wheels (23); The two guide wheels (23) are respectively located at two ends of the moving direction of the moving trolley (22), and are respectively connected to the moving trolley (22) in rotation, and the rotation axis of the guide wheels (23) is perpendicular to the moving direction of the moving trolley (22); The two guide wheels (23) correspond to the two traction ropes (31) one by one, and one end of each traction rope (31) away from the connected coal transport bucket (41) is wound around the corresponding guide wheel (23), and the traction rope (31) wound around the guide wheel (23) spans at least half of the circumference of the guide wheel (23), and the end of the traction rope (31) wound around the guide wheel (23) is fixed.

3. The lifting and transporting device according to claim 2, characterized in that: The track assembly (1) comprises two rack rails (11), and the two rack rails (11) are parallel to each other; The moving trolley (22) comprises two rows of driving pinions (222), the two rows of driving pinions (222) corresponding one to one with the two racks (11), each row of driving pinions (222) in the two rows of driving pinions (222) comprises a plurality of driving pinions (222), and each driving pinion (222) in the plurality of driving pinions (222) is meshed with the corresponding rack (11).

4. The lifting and transporting device according to claim 3, characterized in that: The track assembly (1) further comprises two wheel rails (12), wherein the two wheel rails (12) are parallel to the rack rail (11); The mobile trolley (22) further comprises two rows of running wheels (223), the two rows of running wheels (223) corresponding one to one with the two wheel rails (12), each row of running wheels (223) in the two rows of running wheels (223) comprising a plurality of running wheels (223), at least a portion of each running wheel (223) in the plurality of running wheels (223) being movably located in the corresponding wheel rail (12).

5. The lifting and transporting device according to any one of claims 1 to 4, characterized in that: The lifting and transporting device further comprises a telescopic assembly (5), wherein the telescopic assembly (5) comprises a support unit (51) and two telescopic units (52), wherein the support unit (51) is located outside the track assembly (1), and the two telescopic units (52) are respectively located at two ends of the moving direction of the moving assembly (2) and are connected to the support unit (51), and the two telescopic units (52) correspond one to one to the two traction ropes (31); Each of the two telescopic units (52) is located at the bottom of the corresponding traction rope (31) and is in contact with the corresponding traction rope (31) to support the traction rope (31). The telescopic unit (52) can be telescoped along the length direction of the track assembly (1) as the traction rope (31) in contact moves.

6. The lifting and transporting device according to claim 5, characterized in that: The support unit (51) comprises two guide rails (511) and two groups of support arms (512); the two guide rails (511) are parallel to each other and are located on one side of the track component (1) along a direction perpendicular to the length direction of the track component (1); the length direction of each guide rail (511) of the two guide rails (511) is the same as the length direction of the track component (1); The two groups of support arms (512) correspond one to one with the two guide rails (511); each group of support arms (512) in the two groups of support arms (512) comprises a plurality of support arms (512); and the plurality of support arms (512) in the same group are connected to a side of the corresponding guide rail (511) facing the track assembly (1) at intervals along the length direction of the guide rail (511).

7. The lifting and transporting device according to claim 6, characterized in that: The telescopic unit (52) comprises a plurality of sliding members (521) and a plurality of hinge members (522). The plurality of sliding members (521) are spaced apart along the length direction of the guide rail (511) and are located between the two guide rails (511); each sliding member (521) of the plurality of sliding members (521) is respectively connected to the two guide rails (511); the sliding member (521) contacts one of the traction ropes (31) to support the traction rope (31) in contact; Each hinged member (522) among the plurality of hinged members (522) is located between two adjacent sliding members (521) and is hinged to the two adjacent sliding members (521) so as to change the distance between the two adjacent sliding members (521).

8. The lifting and transporting device according to claim 7, characterized in that: The sliding member (521) comprises a sliding rod (5001) and two guide blocks (5002); The two guide blocks (5002) are respectively connected to two ends of the sliding rod (5001), and each of the two guide blocks (5002) is in sliding contact with one of the guide rails (511); The sliding rod (5001) is hinged to the adjacent hinged member (522) near the outer wall of the guide block (5002).

9. The lifting and transporting device according to claim 8, characterized in that: The sliding member (521) further comprises a roller (5003), wherein the roller (5003) is coaxially sleeved outside the middle portion of the sliding rod (5001) and is rotationally connected to the sliding rod (5001), and an outer wall of the roller (5003) is in contact with the traction rope (31).

10. The lifting and transporting device according to claim 7, characterized in that: The hinged member (522) comprises two hinged arms (5220) hinged to each other, and the two hinged arms (5220) are respectively hinged to two adjacent sliding members (521).

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