A high-efficiency and safe shaft hoist

Abstract

This invention discloses a high-efficiency and safe vertical shaft hoist, belonging to the field of crane equipment technology. It includes a gantry frame with a 3-ton trolley slidably connected to it. The output end of the 3-ton trolley is connected to a connecting mechanism, and a personnel cage is connected to the connecting mechanism. The connecting mechanism includes a fixed frame connected to the personnel cage. Both the front and rear ends of the fixed frame are equipped with two sets of staggered fixed pulleys that cooperate with the wire rope of the 3-ton trolley. Each set of fixed pulleys includes a pair of symmetrically arranged fixed pulleys rotatably connected to the fixed frame. The fixed frame is equipped with a lubrication device for lubricating the wire rope. This invention effectively solves the problem of high operating risks for personnel cages in deep and large vertical shafts in existing vertical shaft hoists, enabling safe operation at lifting heights of up to 400 meters.

Description

Technical Field

[0001] This invention relates to the field of crane equipment technology, and in particular to a high-efficiency and safe vertical shaft hoist. Background Technology

[0002] Vertical shaft hoists, as core vertical transportation equipment, are widely used in industrial production (factory and warehouse material transportation), resource extraction (mine and tunnel ore hoisting), engineering construction (building and bridge material transportation), and special scenarios (museums, elevator alternatives). Their standard system consists of a gantry support structure, a power trolley, a personnel cage, and a wire rope-pulley transmission system, with lifting control achieved through pulley blocks.

[0003] However, simply using multiple steel wire ropes and fixed pulleys to lift the personnel hoisting cage makes the lifting and lowering of the personnel hoisting cage extremely risky and poses a great threat to the lives of construction workers. Corresponding safety protection measures must be taken to ensure the safe operation of the hoisting cage. Especially in high-altitude, low-temperature areas, and when the lifting height is 400 meters, the setting of safety protection measures on the personnel hoisting cage is even more important.

[0004] In addition, to prevent wear on the wire rope, it needs to be lubricated regularly. However, with existing trolleys, lubrication requires climbing the gantry and applying lubricant to the surface of the wire rope, which cannot cover the entire circumference. Manual lubrication only applies lubricant to one side of the wire rope, failing to effectively reach the side near the drum. This results in poor lubrication, affecting the wire rope's lubrication, making it prone to wear, and shortening its service life. Furthermore, manual operation is time-consuming, labor-intensive, and carries the risk of working at height. Summary of the Invention

[0005] The purpose of this invention is to provide a water tightness test for a large-span arc gate to solve the problem of high operating risks of existing vertical shaft hoisting cages in deep and large vertical shafts, and to achieve safe operation at a lifting height of 400 meters.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency and safe vertical shaft hoist includes a gantry frame with a 3t trolley slidably connected to it. The output end of the 3t trolley is connected to a connecting mechanism, and a personnel cage is connected to the connecting mechanism. The connecting mechanism includes a fixed frame connected to the personnel cage. The front and rear ends of the fixed frame are provided with two sets of staggered fixed pulleys that cooperate with the wire rope of the 3t trolley. Each set of fixed pulleys includes a pair of symmetrically arranged fixed pulleys that are rotatably connected to the fixed frame. The fixed frame is provided with a lubrication device for lubricating the wire rope.

[0007] Preferably, the gantry is equipped with a trolley traveling mechanism and a control room; the gantry is also equipped with a 10t trolley, and the output end of the 10t trolley is connected to a hook.

[0008] Preferably, the lubrication device includes two sets of lubrication groups corresponding to the two sets of fixed pulley groups respectively. Each set of lubrication groups includes a pair of lubrication structures slidably connected to the fixed frame. The lubrication structure includes a sliding cavity slidably connected to the fixed frame. The fixed frame is provided with an oil circuit assembly for supplying lubricating oil to the sliding cavity. A rotating frame is rotatably connected to the sliding cavity. A brush frame is detachably connected to the rotating frame. An opening is provided on one side of the sliding cavity, the rotating frame, and the brush frame. The brush frame is provided with an oiling brush corresponding to the wire rope.

[0009] Preferably, a pair of bidirectional cranks corresponding to the two sets of lubrication groups are rotatably connected to the fixed frame, and the center of the bidirectional cranks is rotatably connected to the fixed frame; both ends of the pair of bidirectional cranks are rotatably connected to connecting rods, and the connecting rods are rotatably connected to the corresponding sliding cavities; a slide rail is fixedly connected to the fixed frame, and a slider that slides along the slide rail is fixedly connected to the sliding cavity.

[0010] Preferably, an opening and closing motor is fixedly connected to the fixed frame, and an input bevel gear set is fixedly connected to the output end of the opening and closing motor; the output end of the input bevel gear set is connected to a pair of output bevel gear sets, and the output ends of the pair of output bevel gear sets are respectively fixedly connected to a pair of bidirectional cranks.

[0011] Preferably, the oil circuit assembly includes a pair of lubricating oil tanks mounted on a fixed frame, and a pair of refueling pumps corresponding to the pair of lubricating oil tanks are fixedly connected to the fixed frame; each of the pair of refueling pumps is connected to an oil delivery pipeline, and the pair of oil delivery pipelines are respectively connected to the four sliding chambers.

[0012] Preferably, a drive motor is fixedly connected to the sliding cavity, and a drive bevel gear set is fixedly connected to the output end of the drive motor; both output ends of the drive bevel gear set are connected to a steering bevel gear set, and the output ends of a pair of steering bevel gear sets are connected to a driven bevel gear set; the output ends of a pair of driven bevel gear sets are fixedly connected to a drive wheel, and a sector-shaped gear ring that meshes with the drive wheel is fixedly connected to the rotating frame.

[0013] Preferably, the rotating frame has multiple oil storage tanks evenly distributed along its circumference, and the rotating frame is also provided with an oil inlet that cooperates with the oil storage tanks; both the rotating frame and the brush frame are provided with connecting holes, and the lubricating oil in the oil storage tanks flows to the lubrication brush through the connecting holes.

[0014] Preferably, a splined shaft is fixedly connected to the brush holder, and a splined groove that mates with the splined shaft is provided on the rotating frame; a mounting ear plate is fixedly connected to the rotating frame, and a fixing ear plate corresponding to the mounting ear plate is fixedly connected to the brush holder; a fixing bolt corresponding to the fixing ear plate is provided on the mounting ear plate, and a fixing nut is screwed onto the fixing bolt.

[0015] Preferably, a guide plate corresponding to the opening of the sliding cavity is rotatably connected to the sliding cavity, and a drive frame corresponding to the guide plate is fixedly connected to the fixed frame; a drive rod is fixedly connected to the guide plate, a roller is rotatably connected to the drive rod, and a drive groove is provided on the drive frame to cooperate with the roller to drive the drive rod to rotate; the drive groove includes an inclined rotating groove that cooperates with the roller to drive the drive rod to rotate, and horizontal grooves are fixedly connected to both ends of the rotating groove.

[0016] The present invention discloses a high-efficiency and safe vertical shaft hoisting machine with the following beneficial effects.

[0017] In use, this invention utilizes four sets of fixed pulleys and four sets of wire ropes to lift and raise the personnel cage. The redundant design of the wire ropes, along with the synchronous winching design of the 3t trolley 5's double drums via a pair of meshing open gears, ensures the synchronization of the redundant wire ropes. Even if one wire rope breaks, the remaining wire rope on the broken side can still lift the personnel cage, maintaining its stability and improving its safety.

[0018] In use, this invention lubricates the wire ropes between the two sets of fixed pulleys through two sets of lubrication groups, that is, lubricates the four wire ropes through two pairs of lubrication structures. Specifically, the oil circuit structure continuously provides lubricating oil to the sliding cavity, causing the rotating frame to drive the brush frame to rotate continuously, so that the lubricating oil flows to the oiling brush on the brush frame. The brush frame then evenly coats the wire ropes with lubricating oil through the oiling brush, thereby improving the lubrication effect of the wire ropes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connecting mechanism in this invention; Figure 3 This is a schematic diagram of the lubrication device in this invention; Figure 4 This is a first isometric view of the mating state of the lubrication structure, opening and closing structure, and other structures in this invention. Figure 5 This is a second isometric view of the mating state of the lubrication structure, opening and closing structure, and other structures in this invention. Figure 6 This is a schematic diagram of the lubrication structure in this invention; Figure 7This is a schematic diagram showing the assembly state of the guide plate, drive frame, drive rod, drive groove, and other structures in this invention. Figure 8 This is a schematic diagram of the internal structure of the sliding cavity in this invention; Figure 9 This is a cross-sectional view of the internal structure of the sliding cavity in this invention; Figure 10 This is a schematic diagram showing the assembly state of the brush holder, oiling brush, and connecting hole in this invention.

[0020] In the diagram: 1. Trolley traveling mechanism; 2. Personnel cage; 3. Connecting mechanism; 4. Gantry; 5. 3t trolley; 6. 10t trolley; 7. Control room; 8. Hook; 9. Fixed frame; 10. Fixed pulley; 11. Lubrication device; 12. Wire rope; 13. Lubricating oil tank; 14. Oil pump; 15. Oil pipeline; 16. Opening and closing motor; 17. Input bevel gear set; 18. Output bevel gear set; 19. Double-acting crank. 20. Connecting rod; 21. Sliding cavity; 22. Slide rail; 23. Drive motor; 24. Drive frame; 25. Drive groove; 26. Guide plate; 27. Oiling brush; 28. Rotating frame; 29. ​​Drive rod; 30. Brush holder; 31. Fixed ear plate; 32. Driving bevel gear; 33. Steering bevel gear; 34. Driven bevel gear; 35. Driving wheel; 36. Sector gear ring; 37. Oil reservoir; 38. Connecting hole. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] A high-efficiency and safe vertical shaft hoist, such as Figure 1-10As shown, the system includes a gantry 4, on which a 3t trolley 5 is slidably connected; the output end of the 3t trolley 5 is connected to a connecting mechanism 3, and a personnel cage 2 is connected to the connecting mechanism 3; the 3t trolley 5 is connected to the personnel cage 2 through the connecting mechanism 3, realizing the vertical lifting of the personnel cage 2; the gantry 4 is equipped with a trolley running mechanism 1, and a control room 7; the gantry 4 is also equipped with a 10t trolley 6, and the output end of the 10t trolley 6 is connected to a hook 8; heavy objects are lifted by using the 10t trolley 6 in conjunction with the hook 8.

[0024] The connecting mechanism 3 includes a fixed frame 9 connected to the manned cage 2. The front and rear ends of the fixed frame 9 are each equipped with two sets of staggered fixed pulleys that cooperate with the wire ropes 12 of the 3t trolley 5. The left side of the wire rope 12 cooperating with the fixed pulleys on the outer side of the front end of the fixed frame 9 is fixedly connected to the balance arm on the gantry 4, and the right side is connected to the first drum of the 3t trolley 5. The right side of the wire rope 12 cooperating with the fixed pulleys on the inner side of the front end of the fixed frame 9 is fixedly connected to the balance arm on the gantry 4, and the left side is connected to the second drum of the 3t trolley 5. The left side of the wire rope 12 cooperating with the fixed pulleys on the outer side of the rear end of the fixed frame 9 is fixedly connected to the balance arm on the gantry 4, and the right side is connected to the first drum of the 3t trolley 5. The right side of the wire rope 12 cooperating with the fixed pulleys on the inner side of the rear end of the fixed frame 9 is fixedly connected to the balance arm on the gantry 4, and the left side is connected to the second drum of the 3t trolley 5.

[0025] The 3t trolley 5 uses a double drum with a pair of meshing open gears to ensure synchronous hoisting. Each drum is coaxially fixed with open gears, and the two open gears mesh with each other. Each drum and the two wire ropes 12 wound around it form a rope system with the four fixed pulleys 10 of the personnel cage, resulting in two rope systems: a main rope system and a secondary rope system. The main rope system is the working rope system, and the secondary rope system is the following rope system. In the event of a failure in the main rope system, the secondary rope system can be immediately activated and can operate independently to ensure the safe lifting and lowering of the cage.

[0026] In addition, the 3t trolley 5 uses a double-drum with left and right rotation. The steel wire rope 12 wound on each drum rotates in the opposite direction to the other drum, which reduces the generation of rotational stress inside the steel wire rope 12 and ensures that the overall horizontal rotational force of the manned cage 2 is balanced and does not spin.

[0027] For ordinary manned hoisting cages, when the descent depth or lifting height exceeds 400 meters, the manned hoisting cage 2 is very prone to overall rotation and the wire rope 12 may become tangled. Once this problem occurs, the 3t trolley 5 will be unable to complete the lifting and lowering operation and the wire rope 12 will have to be cut. If not handled properly, it can easily endanger personal and property safety.

[0028] This application fully considers this usage condition during its design and adopts a new design concept: (1) Low-rotation structure steel wire rope 12 is adopted to reduce the internal rotation stress generated during the lifting process of steel wire rope 12 and avoid the influence of the rotation stress of steel wire rope 12 on the overall horizontal rotation force of the manned cage 2. When selecting steel wire rope, steel wire rope 12 is selected according to a safety factor of 14 times the safety factor.

[0029] (2) A double-drum with left and right rotation is adopted. The direction of rotation of the wire rope 12 wound on each drum is opposite to that of the other drum, which reduces the generation of rotational stress inside the wire rope 12 and ensures that the overall horizontal rotational force of the manned cage 2 is balanced and does not spin.

[0030] (3) The entire manned cage adopts a special anti-rotation design with multiple fixed pulleys 10, multiple steel wire ropes 12, and large layout size, which increases the rotation radius of the manned cage 2 and the torque that drives the manned cage 2 to rotate as a whole, and reduces the influence of external force or internal rotation stress of steel wire rope 12 on the rotation of the entire manned cage 2.

[0031] Both sets of fixed pulleys include a pair of symmetrically arranged fixed pulleys 10 that are rotatably connected to the fixed frame 9. The fixed frame 9 is provided with a lubrication device 11 for lubricating the wire rope 12. The wire rope 12 between the pair of fixed pulleys 10 is kept horizontal through the pair of fixed pulleys 10, and the horizontal wire rope 12 between the pair of fixed pulleys 10 is lubricated by the lubrication device 11.

[0032] Preferably, in this embodiment, such as Figure 3 As shown, the lubrication device 11 includes two sets of lubrication groups corresponding to two sets of fixed pulley groups respectively. Each set of lubrication groups includes a pair of lubrication structures that are slidably connected to the fixed frame 9. The lubrication structure includes a sliding cavity 21 that is slidably connected to the fixed frame 9. The fixed frame 9 is provided with an oil circuit assembly that supplies lubricating oil to the sliding cavity 21. A rotating frame 28 is rotatably connected to the sliding cavity 21. A brush holder 30 is detachably connected to the rotating frame 28. An opening is provided on one side of the sliding cavity 21, the rotating frame 28, and the brush holder 30. The brush holder 30 is provided with an oiling brush 27 that corresponds to the wire rope 12.

[0033] When lubricating the wire rope 12, the lubrication device 11 lubricates the wire rope 12 between the two sets of fixed pulleys through two sets of lubrication groups, that is, the four wire ropes 12 are lubricated through two pairs of lubrication structures. Specifically, the oil circuit structure continuously provides lubricating oil to the sliding cavity 21, causing the rotating frame 28 to drive the brush frame 30 to rotate continuously, so that the lubricating oil flows to the oiling brush 27 on the brush frame 30. The brush frame 30 evenly coats the wire rope 12 with lubricating oil through the oiling brush 27, thereby improving the lubrication effect of the wire rope 12.

[0034] Furthermore, by sliding the sliding cavity 21 along the fixed frame 9, the sliding cavity 21, the rotating frame 28, and the brush holder 30 can be separated from or engaged with the wire rope 12 through the opening. When lubrication of the wire rope 12 is required, the sliding cavity 21 slides along the fixed frame 9, and the rotating frame 28 and the brush holder 30 are arranged coaxially with the wire rope 12, so that the lubrication brush 27 on the brush holder 30 can evenly lubricate the wire rope 12. After the lubrication of the wire rope 12 is completed, the sliding cavity 21, the rotating frame 28, and the brush holder 30 are separated from the wire rope 12 through the opening to avoid damage to the lubrication brush 27 and the brush holder 30 caused by the continuous use of the wire rope 12, thereby improving the service life of the lubrication device 11.

[0035] Preferably, in this embodiment, such as Figure 3-5 As shown, a motor 16 is fixedly connected to the fixed frame 9, and an input bevel gear set 17 is fixedly connected to the output end of the motor 16. A pair of output bevel gear sets 18 are connected to the output end of the input bevel gear set 17. A bidirectional crank 19 is fixedly connected to the output end of each pair of output bevel gear sets 18. The pair of bidirectional cranks 19 correspond to two lubrication sets respectively. The center position of the bidirectional crank 19 is coaxially fixedly connected to the output end of the output bevel gear set 18. A connecting rod 20 is rotatably connected to both ends of the pair of bidirectional cranks 19. The connecting rod 20 is rotatably connected to the corresponding sliding cavity 21. A slide rail 22 is fixedly connected to the fixed frame 9, and a slider that slides along the slide rail 22 is fixedly connected to the sliding cavity 21.

[0036] The input bevel gear set 17, the output bevel gear set 18, the steering bevel gear set 33, and the driven bevel gear set 34 include an input bevel gear and an output bevel gear meshing with the input bevel gear; in addition, the driving bevel gear set 32 ​​includes a driving bevel gear 32 and a pair of driven bevel gears 34 meshing with the driving bevel gear 32. The input bevel gear and the driving bevel gear 32 are the input ends, and the output bevel gear and the pair of driven bevel gears 34 are the output ends.

[0037] like Figure 3 As shown, when the sliding cavity 21 needs to slide along the fixed frame 9 and separate from the wire rope 12, the opening and closing motor 16 is started. The opening and closing motor 16 drives a pair of output bevel gear sets 18 to rotate through the input bevel gear set 17. The pair of output bevel gear sets 18 respectively drive a pair of bidirectional cranks 19 to rotate, and the bidirectional cranks 19 drive the connecting rod 20 to rotate. The bidirectional cranks 19, the connecting rod 20, and the sliding cavity 21 form a crank-slider mechanism, so that the bidirectional cranks 19 drive the sliding cavity 21 to move through the connecting rod 20. The sliding cavity 21 slides along the slide rail 22 through the slider, thereby separating the sliding cavity 21, the rotating frame 28, and the brush holder 30 from the wire rope 12 through the opening, so as to avoid the wire rope 12 affecting the brush holder 30, the lubrication brush 27 and other structures during use, and improve the service life of the lubrication structure.

[0038] Preferably, in this embodiment, the oil circuit assembly includes a pair of lubricating oil tanks 13 mounted on a fixed frame 9, and a pair of oil pumps 14 corresponding to the pair of lubricating oil tanks 13 are fixedly connected to the fixed frame 9. Each lubricating oil tank 13 has an oil filling port with a plug. Each pair of oil pumps 14 is connected to an oil delivery pipeline 15, which is connected to four sliding cavities 21. The oil pumps 14 deliver lubricating oil from the lubricating oil tanks 13 to the sliding cavities 21 via the oil delivery pipelines 15. It should be noted that the oil delivery pipelines 15 have a length allowance and are flexible hoses to avoid interference between the sliding cavities 21 and the oil delivery pipelines 15 when the bidirectional crank 19 drives the sliding cavities 21 to move via the connecting rod 20.

[0039] Preferably, in this embodiment, such as Figure 8 and Figure 9 As shown, a drive motor 23 is fixedly connected to the sliding cavity 21, and a set of driving bevel gears 32 is fixedly connected to the output end of the drive motor 23; both output ends of the set of driving bevel gears 32 are connected to a set of steering bevel gears 33, and the output ends of a pair of steering bevel gears 33 are connected to a set of driven bevel gears 34; the output ends of a pair of driven bevel gears 34 are fixedly connected to a drive wheel 35, and a sector-shaped gear ring 36 that meshes with the drive wheel 35 is fixedly connected to the rotating frame 28.

[0040] When the rotating frame 28 needs to rotate, the drive motor 23 is started, and the drive motor 23 drives the active bevel gear 32 to rotate. The active bevel gear 32 drives the driven bevel gear 34 to rotate through a pair of steering bevel gears 33. The driven bevel gear 34 drives the pair of driving wheels 35 to rotate synchronously. The synchronous rotation of the pair of driving wheels 35 drives the sector gear ring 36 to rotate continuously. The sector gear ring 36 drives the rotating frame 28 to rotate continuously.

[0041] Preferably, in this embodiment, such as Figure 8-10 As shown, the rotating frame 28 has multiple oil storage tanks 37 evenly distributed along its circumference, and the rotating frame 28 is also provided with an oil inlet that cooperates with the oil storage tanks 37; both the rotating frame 28 and the brush holder 30 are provided with connecting holes 38, and the lubricating oil in the oil storage tanks 37 flows to the lubricating brush 27 through the connecting holes 38; when the rotating frame 28 rotates, the rotating frame 28 collects the lubricating oil in the sliding cavity 21 into the oil storage tanks 37 through the oil inlet, and during the rotation of the rotating frame 28, the lubricating oil in the oil storage tanks 37 flows to the lubricating brush 27 through the connecting holes 38.

[0042] Preferably, in this embodiment, a splined shaft is fixedly connected to the brush holder 30, and a splined groove is provided on the rotating frame 28 to cooperate with the splined shaft; the brush holder 30 and the rotating frame 28 are connected by the splined shaft and the splined groove, so that when the rotating frame 28 rotates, the brush machine is driven to rotate through the cooperation of the splined groove and the splined shaft; a mounting ear plate is fixedly connected to the rotating frame 28, and a fixing ear plate 31 corresponding to the mounting ear plate is fixedly connected to the brush holder 30; a fixing bolt corresponding to the fixing ear plate 31 is provided on the mounting ear plate, and a fixing nut is screwed onto the fixing bolt; when fixing the brush holder 30, the fixing ear plate 31 is installed on the fixing bolt of the mounting ear plate, and the fixing nut cooperates with the fixing bolt to fix the fixing ear plate 31 and the brush holder 30.

[0043] Preferably, in this embodiment, such as Figure 5-7 As shown, a guide plate 26 corresponding to the opening of the sliding cavity 21 is rotatably connected to the sliding cavity 21, and a drive frame 24 corresponding to the guide plate 26 is fixedly connected to the fixed frame 9. A drive rod 29 is fixedly connected to the guide plate 26, and a roller is rotatably connected to the drive rod 29. The drive frame 24 is provided with a drive groove 25 that cooperates with the roller to drive the drive rod 29 to rotate. The drive groove 25 includes an inclined rotating groove that cooperates with the roller to drive the drive rod 29 to rotate, and both ends of the rotating groove are provided with horizontal grooves.

[0044] As the brush holder 30 rotates with the rotating frame 28, the guide plate 26 guides the lubricating oil at the opening of the sliding cavity 21, allowing the lubricating oil to flow back to the sliding cavity 21 and the brush holder 30; Figure 5-7 As shown, the pin on the drive rod 29 engages with the horizontal groove to keep the guide plate 26 stable. When the sliding cavity 21 slides along the fixed frame 9 and separates from the wire rope 12, the sliding cavity 21 drives the pin on the drive rod 29 to slide along the horizontal groove to the rotating groove through the guide plate 26. With the engagement of the rotating groove and the pin, the drive rod 29 drives the guide plate 26 to rotate along the sliding cavity 21 to the horizontal direction, so that the guide plate 26 rotates to below the wire rope 12, and the guide plate 26 separates from the wire rope 12 along with the sliding cavity 21.

[0045] The working process of this invention is as follows: When one of the steel wire ropes 12 breaks during use, the present invention enables the hoisting and lifting of the manned cage 2 by cooperating with four sets of fixed pulleys and four sets of steel wire ropes 12; thus, the other steel wire rope 12 on the side where the steel wire rope 12 broke can still hoist the manned cage 2, maintaining the stability of the manned cage 2.

[0046] When lubrication of the wire rope 12 is required, the opening and closing motor 16 is started. The opening and closing motor 16 drives a pair of output bevel gear sets 18 to rotate through the input bevel gear set 17. The pair of output bevel gear sets 18 respectively drive a pair of bidirectional cranks 19 to rotate. The bidirectional cranks 19 drive the connecting rod 20 to rotate. The bidirectional cranks 19, the connecting rod 20, and the sliding cavity 21 form a crank-slider mechanism, so that the bidirectional cranks 19 drive the sliding cavity 21 to move through the connecting rod 20. The sliding cavity 21 slides along the slide rail 22 through the slider, thereby making the sliding cavity 21, the rotating frame 28, and the brush frame 30 coaxially arranged with the wire rope 12 through the opening.

[0047] At the same time, the sliding cavity 21 drives the pin on the drive rod 29 to slide along the horizontal groove to the rotating groove through the guide plate 26. With the cooperation of the rotating groove and the pin, the drive rod 29 drives the guide plate 26 to rotate along the sliding cavity 21 to the vertical direction, so that the guide plate 26 rotates to the side of the wire rope 12. This allows the guide plate 26 to guide the lubricating oil at the opening of the sliding cavity 21, and then allow the lubricating oil to flow back to the sliding cavity 21 and the brush holder 30.

[0048] Start the oil pump 14, which delivers the lubricating oil in the lubricating oil tank 13 to the sliding cavity 21 through the oil delivery pipeline 15; start the drive motor 23, which drives the active bevel gear 32 to rotate; the active bevel gear 32 drives the driven bevel gear 34 to rotate through a pair of steering bevel gears 33, and the driven bevel gear 34 drives the active wheel 35 to rotate synchronously, and the synchronous rotation of the active wheel 35 drives the sector gear ring 36 to rotate continuously, and the sector gear ring 36 drives the rotating frame 28 to rotate continuously.

[0049] When the rotating frame 28 rotates, it draws lubricating oil from the sliding cavity 21 into the oil reservoir 37 through the oil inlet. During the rotation of the rotating frame 28, the lubricating oil in the oil reservoir 37 flows to the lubrication brush 27 through the connecting hole 38. As the rotating frame 28 and the brush holder 30 continue to rotate, the lubricating oil is evenly coated onto the wire rope 12 through the lubrication brush 27, thereby improving the lubrication effect of the wire rope 12.

[0050] At the same time, the 3t trolley 5 is started, which drives the manned cage 2 to rise and fall through the steel wire rope. At this time, the steel wire rope passes through the fixed pulley 10 and continuously contacts the brush frame 30 and the oiling brush 27. Through the continuous rotation of the brush frame 30 and the oiling brush 27, the lubricating oil is evenly coated on all parts of the steel wire rope to achieve lubrication.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-efficiency and safe vertical shaft hoist, comprising a gantry (4), on which a 3t trolley (5) is slidably connected; the output end of the 3t trolley (5) is connected to a connecting mechanism (3), and a personnel cage (2) is connected to the connecting mechanism (3); characterized in that: The connecting mechanism (3) includes a fixed frame (9) connected to the manned cage (2). The front and rear ends of the fixed frame (9) are each provided with two sets of staggered fixed pulleys. The four sets of fixed pulleys are respectively connected to the four steel wire ropes (12) of the 3t trolley (5). Each set of fixed pulleys includes a pair of symmetrical fixed pulleys (10) that are rotatably connected to the fixed frame (9). The steel wire ropes (12) between each pair of fixed pulleys (10) form a horizontal rope segment. The fixed frame (9) is provided with a lubrication device (11), which includes two lubrication groups. Each lubrication group includes a pair of lubrication structures that are slidably connected to the fixed frame (9). The four lubrication structures respectively lubricate the horizontal rope segments of the four steel wire ropes (12). Each lubrication structure includes a sliding cavity (21). A slide rail (22) is fixedly connected to the fixed frame (9). A slider that slides along the slide rail (22) is fixedly connected to the sliding cavity (21). The fixed frame (9) is provided with an oil circuit assembly that supplies lubricating oil to the sliding cavity (21). A rotating frame (28) is rotatably connected to the sliding cavity (21), and a brush frame (30) is detachably connected to the rotating frame (28). An opening is provided on one side of the sliding cavity (21), the rotating frame (28), and the brush frame (30). An oiling brush (27) corresponding to the corresponding wire rope (12) is provided on the brush frame (30). The sliding cavity (21) slides along the slide rail (22), so that the sliding cavity (21), the rotating frame (28), and the brush frame (30) can cooperate or separate with the corresponding wire rope (12) through the opening. In the lubricated state of cooperating with the wire rope (12), the rotating frame (28) and the brush frame (30) are arranged coaxially with the horizontal rope segment, and the rotating frame (28) drives the brush frame (30) to rotate continuously. The rotating frame (28) has multiple oil storage tanks (37) evenly distributed around its circumference. The rotating frame (28) is provided with an oil inlet that cooperates with the oil storage tanks (37). Both the rotating frame (28) and the brush holder (30) are provided with connecting holes (38). When the rotating frame (28) rotates, the lubricating oil in the sliding cavity (21) is collected into the oil storage tank (37) through the oil inlet. The lubricating oil in the oil storage tank (37) flows to the oiling brush (27) through the connecting hole (38). A guide plate (26) corresponding to its opening is rotatably connected to the sliding cavity (21). A drive frame (24) corresponding to the guide plate (26) is fixedly connected to the fixed frame (9). A drive rod (29) is fixedly connected to the guide plate (26). A roller is rotatably connected to the drive rod (29). A drive groove (25) is provided on the drive frame (24) to cooperate with the roller and drive the drive rod (29) to rotate. The drive groove (25) includes an inclined rotating groove. Both ends of the rotating groove are provided with horizontal grooves. The drive groove (25) cooperates with the roller. During the process of sliding the sliding cavity (21) along the slide rail (22) to cooperate with the wire rope (12), the drive rod (29) drives the guide plate (26) to rotate to a vertical position on one side of the wire rope (12) so as to guide the lubricating oil at the opening of the sliding cavity (21) and let the lubricating oil flow back to the sliding cavity (21) and the brush holder (30). During the process of sliding the sliding cavity (21) along the slide rail (22) and separating from the wire rope (12), the drive rod (29) drives the guide plate (26) to rotate to a horizontal position below the wire rope (12) so that the guide plate (26) separates from the wire rope (12) along with the sliding cavity (21).

2. The high-efficiency and safe vertical shaft hoist according to claim 1, characterized in that: A pair of bidirectional cranks (19) corresponding to the two sets of lubrication groups are rotatably connected to the fixed frame (9). The center of the bidirectional cranks (19) is rotatably connected to the fixed frame (9). Both ends of the pair of bidirectional cranks (19) are rotatably connected to connecting rods (20), and the connecting rods (20) are rotatably connected to the corresponding sliding cavities (21).

3. The high-efficiency and safe vertical shaft hoist according to claim 2, characterized in that: An opening and closing motor (16) is fixedly connected to the fixed frame (9), and an input bevel gear set (17) is fixedly connected to the output end of the opening and closing motor (16); a pair of output bevel gear sets (18) are connected to the output end of the input bevel gear set (17), and the output ends of the pair of output bevel gear sets (18) are respectively fixedly connected to the center position of the pair of bidirectional cranks (19).

4. The high-efficiency and safe vertical shaft hoisting machine according to claim 1, characterized in that: A drive motor (23) is fixedly connected to the sliding cavity (21), and an active bevel gear set (32) is fixedly connected to the output end of the drive motor (23). Both output ends of the active bevel gear set (32) are connected to a steering bevel gear set (33), and the output ends of a pair of steering bevel gear sets (33) are connected to a driven bevel gear set (34). The output ends of a pair of driven bevel gear sets (34) are fixedly connected to a drive wheel (35), and a sector gear ring (36) that meshes with the drive wheel (35) is fixedly connected to the rotating frame (28). The pair of drive wheels (35) rotate synchronously and drive the sector gear ring (36) to rotate continuously.

5. The high-efficiency and safe vertical shaft hoist according to claim 1, characterized in that: The oil circuit assembly includes a pair of lubricating oil tanks (13) mounted on a fixed frame (9). A pair of oil pumps (14) corresponding to the pair of lubricating oil tanks (13) are fixedly connected to the fixed frame (9). Each pair of oil pumps (14) is connected to an oil delivery pipeline (15). The pair of oil delivery pipelines (15) connect the pair of oil pumps (14) to the four sliding chambers (21) to supply oil to the four sliding chambers (21). The oil delivery pipelines (15) are flexible hoses with a length allowance.

6. The high-efficiency and safe vertical shaft hoisting machine according to claim 1, characterized in that: A spline shaft is fixedly connected to the brush holder (30), and a spline groove that mates with the spline shaft is provided on the rotating frame (28); a mounting ear plate is fixedly connected to the rotating frame (28), and a fixing ear plate (31) corresponding to the mounting ear plate is fixedly connected to the brush holder (30); a fixing bolt corresponding to the fixing ear plate (31) is provided on the mounting ear plate, and a fixing nut is screwed onto the fixing bolt.

7. The high-efficiency and safe vertical shaft hoist according to claim 1, characterized in that: The gantry (4) is equipped with a trolley running mechanism (1) and a control room (7); the gantry (4) is also equipped with a 10t trolley (6), and the output end of the 10t trolley (6) is connected to a hook (8).

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