A quick rope changing device for multi-rope friction mine hoist

Abstract

The present invention relates to the technical field of mine operation and transportation, and discloses a quick rope changing device for a multi-rope friction mine hoist, including a wellhead support plate, a reducer is provided at one output end of a driving motor, a rope containing drum is provided at the end of the reducer, and a multi-rope structure is provided on the rope containing drum, a wire rope conveying frame is provided on the wellhead support plate and located on one side of the rope containing drum, an auxiliary rope changing mechanism is provided in the wire rope conveying frame, and an anti-drop mechanism is provided at the bottom of the wellhead support plate. Compared with the prior art, the present invention has the advantages that by providing an auxiliary rope changing mechanism on the wire rope conveying frame, two box-type skip buckets can be assisted to be connected in turn when the steering frame moves in the arc guide groove. At this time, the staff only needs to connect the ends of the wire rope in turn, which has the beneficial effect of being quick and convenient compared with the prior art in which the wire rope needs to be manually guided through a guide wheel at one end to the other end of the rope containing drum when the wire rope is replaced.

Description

Technical Field

[0001] The invention relates to the technical field of mine operation transportation, and in particular to a quick rope changing device for a multi-rope friction mine hoist. Background Art

[0002] The multi-rope friction mine hoist mainly uses the friction between the wire rope and the friction wheel to achieve the lifting of the lifting container (such as a bucket or a cage). Multiple wire ropes are placed on the friction wheel at equal intervals. When the friction wheel rotates, the friction force drives the wire rope to move, thereby driving the lifting container to rise or fall in the shaft.

[0003] In the prior art, when replacing the rope of a multi-rope friction mine hoist, the bucket or cage is generally lifted to the wellhead and fixed. After the old rope is cut and removed, the wire rope to be replaced is lifted to a suitable position using lifting equipment such as an electric hoist. During the installation of the new wire rope, a jack is used to assist in lifting the container and fix it to connect the wire rope. After the wire rope is connected, the tension of the wire rope is adjusted using a rope tightening device.

[0004] However, in the prior art, when lifting the wire rope, it is necessary to use a lifting device to transfer the wire rope, and then manually pull the wire rope to the hoist, which is cumbersome and inefficient. In addition, the process requires coordinated operation of multiple devices, that is, multiple people are required to change the rope, which wastes manpower, and the operation of multiple devices will increase the cost of changing the rope.

[0005] In the prior art, when workers replace the wire rope, they need to disconnect the old wire rope from the lifting container and connect the new wire rope to the lifting container. However, since the lifting container is located at the wellhead of the mine, the workers cannot fully ensure their own safety when replacing the wire rope because they need to be at the wellhead. There is a risk of falling into the well, thus posing a safety hazard. Summary of the invention

[0006] In order to solve the above-mentioned problems, the present invention proposes a quick rope changing device for a multi-rope friction mine hoist.

[0007] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0008] A quick rope changing device for a multi-rope friction mine hoist, comprising a wellhead support plate, a motor base is arranged on the wellhead support plate, a driving motor 1 is arranged on the motor base, a reducer is arranged at the output end of the driving motor 1, a rope holding drum is arranged at the end of the reducer, a multi-rope structure is arranged on the rope holding drum, a main shaft support column is arranged at the end, a wire rope conveying frame located at one side of the rope holding drum is arranged on the wellhead support plate, an auxiliary rope changing mechanism is arranged in the wire rope conveying frame, and an anti-drop mechanism is arranged at the bottom of the wellhead support plate;

[0009] The wire rope conveying frame includes a frame body, a wire rope loading roller is rotatably provided on one end of the frame body, a top frame is provided on the other end, and an arc-shaped guide groove is provided at the bottom of the top frame. The auxiliary rope changing mechanism includes a steering frame located on the inner side of the top frame, connecting columns are provided at both ends of the steering frame, and the ends of the connecting columns are provided with guide sliding blocks slidably connected to the arc-shaped guide groove. A moving frame is provided in the steering frame, and a screw rod is provided in the moving frame. The external thread of the screw rod is provided with a moving frame sliding in the moving frame, and an electric telescopic rod is provided in the moving frame. A wire rope fixing plate is provided at the end of the electric telescopic rod, and a locking plate is hinged at the bottom of the wire rope fixing plate. The wire end on the wire rope loading roller is fixed by the wire rope fixing plate and the locking plate.

[0010] As an improvement, the wellhead support plate is provided with a support plate groove located directly below the rope containing drum, the multi-rope structure is located in the support plate groove, the multi-rope structure includes a plurality of lifting wire rope bodies wound around the rope containing drum, box-type skips are provided below both ends of the lifting wire rope bodies, the box-type skips are provided with a plurality of connecting rings 2, connecting ropes are connected to the connecting rings 2, the top end of the connecting rope is connected to the end of the lifting wire rope body, and a tail rope is connected between the bottoms of the two box-type skips.

[0011] As an improvement, the anti-drop mechanism includes a bottom frame located at the bottom of the wellhead support plate, and transmission rods are provided at both ends of the bottom frame. Thread groove 1 and thread groove 2 are respectively provided at both ends of the transmission rod. The thread groove 1 has an external thread with a screw block 1, and the screw block 1 is provided with a plurality of docking blocks 1. The gap size between the plurality of docking blocks 1 is larger than the diameter of the lifting wire rope. The thread groove 2 has an external thread with a screw block 2, and the screw block 2 is provided with a plurality of docking blocks 2 corresponding to the position of the docking block 1. A bevel gear 1 is provided at the two ends of the two transmission rods, and a bevel gear 2 is meshed on the bevel gear 1. A rotating rod is provided between the two bevel gears 2, and a driven gear is provided on the rotating rod. A driving gear is meshed on the driven gear, and the driving gear is driven by a driving motor 2.

[0012] As an improvement, a plurality of the docking blocks are provided with an insert rod at one end, and a plurality of the docking blocks are provided with an insert hole at both ends, and the insert rod is plugged into the insert hole.

[0013] As an improvement, a track is provided on the wellhead support plate, a slide groove is provided at the bottom of the frame body which is slidably connected to the track, a roller is provided on the slide groove which is rollingly connected to the track, and a limit block is provided at the end of the track.

[0014] As an improvement, the wire rope loading roller is composed of a number of sub-rollers with the same number as the lifting wire rope body, and the sub-rollers are wound with wire ropes. A rope guide plate 1 is provided in the frame body, and a rope guide plate 1 is provided with a number of rope guide holes 1 respectively located in the center direction of the sub-rollers. A rope guide plate 2 is provided on the side of the rope guide plate 1 away from the wire rope loading roller. A rope guide roller is provided on the turning frame, and a number of rope guide holes 2 corresponding to the position of the lifting wire rope body are provided on the rope guide plate 2. A number of rope guide grooves are provided at the bottom of the movable frame, and a number of inclined grooves are provided at the bottom of the movable frame. The wire rope is fixed in the fixed rope hole through the first guide hole, the second guide hole, the rope guide roller, the rope guide groove and the inclined groove.

[0015] As an improvement, a limit plate is provided at the end of the top frame, a traction machine is provided on the limit plate, a connecting ring is provided at both the upper and lower ends of the steering frame, a traction rope on the traction machine is connected to the upper connecting ring, an installation groove is provided at the bottom of one end of the frame, a traction machine is provided in the installation groove, and a traction machine is provided on the traction machine, and a traction rope on the traction machine is connected to the lower connecting ring.

[0016] As an improvement, the bottom thread of the locking plate is provided with wire rope fixing bolts corresponding to the positions of the plurality of fixed rope holes, the ends of the wire rope fixing bolts pass through the locking plate and are located in the fixed rope holes, and locking bolts are provided on both sides of the wire rope fixing bolts.

[0017] Beneficial effects:

[0018] 1. By arranging an auxiliary rope-changing mechanism on the wire rope conveying frame, when the turning frame moves in the arc-shaped guide groove, the two box-type buckets can be assisted to be connected in sequence. At this time, the staff only needs to connect the ends of the wire rope in sequence. Compared with the prior art in which the wire rope needs to be manually guided through one end guide wheel to the other end of the rope drum when the wire rope is replaced, it has the beneficial effect of being fast and convenient;

[0019] 2. By winding the wire rope on the wire rope loading roller and outputting it through the auxiliary rope changing mechanism, the wire rope conveying frame can be directly moved to the rope holding drum through the track during rope changing and assisted by the auxiliary rope changing mechanism. Compared with the prior art of using lifting equipment to transport wire ropes, the invention has the beneficial effect of high efficiency. In addition, the area used for rope changing operation of the invention is only within the range of the wire rope conveying frame and the rope holding drum, which has the beneficial effect of small footprint and high land utilization rate.

[0020] 3. By setting an anti-drop mechanism under the wellhead support plate, when the docking block 1 and the docking block 2 on the anti-drop mechanism are closed, the staff can step on the anti-drop mechanism to remove the old wire rope and install the new wire rope, which makes it more convenient for the staff. The closure of the docking block 1 and the docking block 2 can prevent the staff from falling into the well and causing personal safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the whole Figure 1 .

[0022] Figure 2 The present invention is a schematic diagram of the whole Figure 2 .

[0023] Figure 3 The present invention is a schematic diagram of the whole Figure 3 .

[0024] Figure 4 This is a partial schematic diagram of the present invention Figure 1 .

[0025] Figure 5 This is a partial schematic diagram of the present invention Figure 2 .

[0026] Figure 6 It is a schematic diagram of the auxiliary rope-changing mechanism of the present invention.

[0027] Figure 7 The present invention Figure 4 Partial schematic diagram A.

[0028] Figure 8 It is a schematic diagram of the anti-drop mechanism of the present invention.

[0029] Fig. 9 This is a partial schematic diagram of the present invention Figure 3 .

[0030] Fig.10 The present invention Fig. 9 Partial schematic diagram B.

[0031] As shown in the figure: 1. Wellhead support plate; 2. Driving motor 1; 3. Speed ​​reducer; 4. Rope drum; 5. Track; 6. Motor base; 7. Main shaft support column; 8. Support plate slot; 9. Limit block; 21. Wire rope conveyor frame; 211. Frame; 212. Wire rope loading roller; 213. Rope guide plate 1; 214. Rope guide hole 1; 215. Rope guide plate 2; 216. Rope guide hole 2; 217. Top frame; 218. Arc guide groove; 219. Limit plate; 220. Tractor 1; 221. Mounting groove; 222. Tractor 2; 223. Slide; 224. Roller; 31. Auxiliary rope changing mechanism; 311. Steering frame; 312. Connecting column; 313. Guide sliding block; 314. Connecting ring 1; 315. Moving frame; 316. Screw rod; 317. Moving frame; 318. Electric extension retracting rod; 319, wire rope fixing plate; 320, locking plate; 321, locking bolt; 322, wire rope fixing bolt; 323, guide rope roller; 324, guide rope groove; 325, inclined groove; 326, fixed rope hole; 41, multi-rope structure; 411, lifting wire rope body; 412, connecting rope; 413, box-type bucket; 414, connecting ring 2; 415, tail rope; 51, anti-drop mechanism ; 511, bottom frame; 512, transmission rod; 513, thread groove one; 514, thread groove two; 515, screw block one; 516, docking block one; 517, screw block two; 518, docking block two; 519, plug rod; 520, socket; 521, bevel gear one; 522, bevel gear two; 523, rotating rod; 524, driven gear; 525, driving gear; 526, drive motor two. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 As shown, a quick rope changing device for a multi-rope friction mine hoist comprises a wellhead support plate 1, a motor base 6 is arranged on the wellhead support plate 1, a driving motor 2 is arranged on the motor base 6, a reducer 3 is arranged at the output end of the driving motor 2, a rope holding drum 4 is arranged at the end of the reducer 3, a multi-rope structure 41 is arranged on the rope holding drum 4, and a main shaft support column 7 is arranged at the end, a steel wire rope conveying frame 21 located at one side of the rope holding drum 4 is arranged on the wellhead support plate 1, an auxiliary rope changing mechanism 31 is arranged in the steel wire rope conveying frame 21, and an anti-dropping mechanism 51 is arranged at the bottom of the wellhead support plate 1;

[0034] Working principle of the present invention: the wellhead support plate 1 is a steel plate placed at the mine mouth, which serves as a supporting base to ensure the stability of the lifting equipment. The motor base 6 supports the driving motor 2 and the reducer 3, and equipment such as a distribution box can be arranged inside. The driving motor 2 can drive the rope drum 4, and the reducer 3 can adjust the rotation speed of the rope drum 4. The multi-rope structure 41 is used to lift coal and other minerals. The rope drum 4 can drive the multi-rope structure 41 to reciprocate. The wire rope conveyor frame 21 can transport new wire ropes and serve as a support frame for the auxiliary rope changing mechanism 31. The anti-drop mechanism 51 can fix the lifting container and can be stepped on by the staff to ensure personal safety.

[0035] Combined with Figure 8 , Attachment Fig. 9 , Attachment Fig.10 As shown, the wellhead support plate 1 is provided with a support plate slot 8 located directly below the rope drum 4, the multi-rope structure 41 is located in the support plate slot 8, the multi-rope structure 41 includes a plurality of lifting wire rope bodies 411 wound around the rope drum 4, box-type skips 413 are provided below both ends of the lifting wire rope body 411, the box-type skips 413 are provided with a plurality of connecting rings 414, the connecting rings 414 are connected with connecting ropes 412, the top of the connecting rope 412 is connected to the end of the lifting wire rope body 411, and a tail rope 415 is connected between the bottoms of the two box-type skips 413;

[0036] The anti-drop mechanism 51 includes a bottom frame 511 located at the bottom of the wellhead support plate 1, and transmission rods 512 are arranged at both ends of the bottom frame 511. The transmission rods 512 are respectively provided with a thread groove 1 513 and a thread groove 2 514 at both ends. The thread groove 1 513 is provided with a screw block 1 515 on the external thread, and a plurality of docking blocks 1 516 are arranged on the screw block 1 515. The gap size between the plurality of docking blocks 1 516 is larger than the diameter of the lifting wire rope. The thread groove 2 514 is provided with a screw block 2 517 on the external thread, and a plurality of docking blocks 2 518 corresponding to the position of the docking block 1 516 are arranged on the screw block 2 517. The ends of the two transmission rods 512 are provided with a bevel gear 1 521, and a bevel gear 2 522 is meshed on the bevel gear 1 521. A rotating rod 523 is provided between the two bevel gears 2 522, and a driven gear 524 is provided on the rotating rod 523. A driving gear 525 is meshed on the driven gear 524, and the driving gear 525 is driven by a driving motor 2 526.

[0037] A plurality of the first docking blocks 516 are provided with an insert rod 519 at their ends, and a plurality of the second docking blocks 518 are provided with an insert hole 520 at their ends, and the insert rod 519 is inserted into the insert hole 520;

[0038] Working principle of the anti-drop mechanism 51: start the driving motor 1 2 to drive the rope drum 4 to rotate through the reducer 3 to drive the lifting wire rope body 411 to move. When the box-type skip 413 on the side away from the wire rope conveying frame 21 rises to the wellhead, start the driving motor 2 526 to rotate forward, the driving motor 2 526 drives the driving gear 525 to rotate, the driving gear 525 drives the driven gear 524 to rotate, and the driven gear 524 drives the bevel gear 2 522 and the bevel gear 1 521 to rotate through the rotating rod 523, so that the transmission rod 512 rotates, and the thread groove 1 513 and the thread groove 2 514 have opposite thread directions, that is, when the transmission rod 512 rotates, the screw block 1 515 and the screw block 2 517 make relative motion or opposite motion. When the driving motor 526 rotates forward, the screw block 515 and the screw block 517 make relative movement. When the plug rod 519 on the docking block 516 is inserted into the plug hole 520 on the docking block 518, the wellhead is in a closed state. At this time, the connecting rope 412 is located in the gap of the docking block 518, and the top of the connecting rope 412 is fixed by the wire rope clamp and is in a rope loop state. At this time, the wire rope clamp can contact the docking block 518, and the wire rope clamp is located on the docking block 518, so that the box-type bucket 413 is fixed under the docking block 518. At this time, the staff can remove the old wire hoisting rope. When the wellhead is in a closed state, the staff can step on the docking block 516 and the docking block 518, which is convenient for the staff to operate;

[0039] When disassembling, a cutting tool can be used, and the disassembled rope end is connected to the wire recovery and winding device. The wire recovery and winding device is composed of a winding roller and a drive, and can wind up the wire rope. Before winding up, the auxiliary rope changing mechanism 31 can be started to assist the staff to connect the wire rope on the auxiliary rope changing mechanism 31 with the connecting rope 412 on the fixed box-type bucket 413;

[0040] After the connection, start the driving motor 2 526 to reverse, and start the wire recovery and winding equipment and the wire rope conveying frame 21 at the same time, so as to release and reel in the new wire rope and the old wire rope at the same time. When the heights of the two box-type skips 413 are interchanged, start the driving motor 2 526 to rotate forward again to fix the box-type skip 413 on the side close to the wire rope conveying frame 21, start the auxiliary rope changing mechanism 31 to change the position and assist the staff in changing the rope. After the rope changing is completed, the rope tightening device can be used to make the tension of the replaced wire rope uniform. The rope tightening equipment generally includes a hydraulic rope tightener and a spiral rope tightener, both of which are prior art.

[0041] Combined with Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7As shown, the wire rope conveying frame 21 includes a frame body 211, one end of which is rotatably provided with a wire rope loading roller 212, and the other end is provided with a top frame 217, and the bottom of the top frame 217 is provided with an arc guide groove 218, and the auxiliary rope changing mechanism 31 includes a steering frame 311 located inside the top frame 217, and both ends of the steering frame 311 are provided with connecting columns 312, and the ends of the connecting columns 312 are provided with guide sliding blocks 313 slidably connected to the arc guide groove 218, and the auxiliary rope changing mechanism 31 includes a steering frame 311 located inside the top frame 217, and the two ... guide sliding blocks 313 slidably connected to the arc guide groove 218, and the auxiliary rope changing mechanism 31 includes a steering frame 311 located inside the top frame 217, and the two ends of the steering frame 311 are provided with connecting columns 312, and the two ends of the connecting columns 312 are provided with guide sliding blocks 313 slidably connected to the arc guide groove 218, and the auxiliary rope changing mechanism 31 includes a steering frame 311 located inside the top frame 217, and the two ends of the steering frame 311 are provided with guide sliding blocks 313 slidably connected to the arc guide groove 218, and the auxiliary rope changing mechanism 31 includes a steering frame 311 located inside the top frame 217, and the two ends of the steering frame 311 are provided with guide A moving frame 315 is provided in the steering frame 311, a screw rod 316 is provided in the moving frame 315, an external thread of the screw rod 316 is provided with a moving frame 317 sliding in the moving frame 315, an electric telescopic rod 318 is provided in the moving frame 317, a steel wire fixing plate 319 is provided at the end of the electric telescopic rod 318, a locking plate 320 is hinged at the bottom of the steel wire fixing plate 319, and the steel wire end on the steel wire loading roller 212 is fixed by the steel wire fixing plate 319 and the locking plate 320;

[0042] The wellhead support plate 1 is provided with a track 5, the bottom of the frame 211 is provided with a slide groove 223 slidably connected to the track 5, the slide groove 223 is provided with a roller 224 rollingly connected to the track 5, and the end of the track 5 is provided with a limit block 9;

[0043] The bottom of the locking plate 320 is threaded with a wire rope fixing bolt 322 corresponding to the position of the plurality of fixing rope holes 326. The end of the wire rope fixing bolt 322 passes through the locking plate 320 and is located in the fixing rope hole 326. Locking bolts 321 are provided on both sides of the wire rope fixing bolt 322.

[0044] The top frame 217 is provided with a limit plate 219 at the end thereof, a traction machine 220 is provided on the limit plate 219, a connecting ring 314 is provided at both the upper and lower ends of the steering frame 311, a traction rope on the traction machine 220 is connected to the upper connecting ring 314, a mounting groove 221 is provided at the bottom of one end of the frame 211, a traction machine 222 is provided in the mounting groove 221, and a traction rope on the traction machine 222 is connected to the lower connecting ring 314;

[0045] Working principle of the wire rope conveyor 21: When using the present invention, the roller 224 on the wire rope conveyor 21 can be moved to a predetermined position by rolling on the track 5 and fixed. After use, the present invention can be transferred to the other end of the track. The track can be designed according to the specific scenario;

[0046] When changing the rope of the box-type skip 413 far away from the side of the wire rope conveyor 21, the traction machine 1 220 is started to collect the traction rope, and the traction machine 2 222 is started to release the traction rope. At this time, the steering frame 311 moves up, and because the guide sliding block 313 on the steering frame 311 is slidably connected with the arc guide groove 218, at this time, the steering frame 311 moves along the arc guide groove 218, and when the guide sliding block 313 moves to the top of the arc guide groove 218, the traction machine 1 220 ends collecting the traction rope. During the process, the steering frame 311 will rotate 90 degrees to the side of the traction machine 1 220 when moving up, until the steering frame 311 contacts the limit plate 219. During the process, the wire rope loading roller 212 needs to start releasing the rope to cooperate with the movement of the steering frame 311;

[0047] The driving device on the start screw rod 316 drives the screw rod 316 to rotate, and the screw rod 316 drives the moving frame 317 to move to the side of the traction machine 220. After moving into place, the staff manually loosens a wire rope fixing bolt 322 to allow the internal wire rope to move. Then the end of the traction wire rope is connected to the connecting rope 412 and fixed by the wire rope clamp and in a rope loop state. Then, the remaining wire rope fixing bolts 322 are loosened in turn and connected to the connecting rope 412 one by one.

[0048] When changing the rope of the box-type skip 413 near the wire rope conveying frame 21, start the traction machine 1 220 to release the traction rope, and start the traction machine 2 222 to collect the traction rope. At this time, the steering frame 311 returns to the initial position, and the driving device on the starting screw rod 316 drives the moving frame 317 to move to the bottom of the steering frame 311. During the process, the box-type skip 413 far away from the wire rope conveying frame 21 is fixed under the docking block 2 518, so the fixed rope hole 326 is connected with the wire rope in a sliding manner. When the steering frame 311 moves into place, the driving motor 2 526 is started to make the box-type skip 413 far away from the wire rope conveying frame 21 fall.

[0049] When the height positions of the two box-type skips 413 are interchanged, the drive motor 2 526 is started again for forward rotation to fix the box-type skip 413 on the side close to the wire rope conveyor frame 21, and all the wire rope fixing bolts 322 are tightened to fix the new wire rope in the fixed rope hole 326. The staff can completely remove the old wire rope and cut the new wire rope according to the length of the tail section of the old wire rope. After cutting, the tail section of the new wire rope is connected to the connecting rope 412 one by one and fixed by a wire rope clamp and in a rope loop state. After fixing, unscrew all the wire rope fixing bolts 322 and the locking bolts 321 to disengage the new wire rope from the fixed rope hole 326. At this time, the rope tightening device is used to adjust the new wire rope.

[0050] Combined with Figure 5 , Attachment Figure 6As shown, the wire rope loading roller 212 is composed of a number of sub-rollers of the same number as the lifting wire rope body 411, and the sub-rollers are wound with wire ropes. A guide rope plate 213 is provided in the frame 211, and a number of guide rope holes 214 are provided on the guide rope plate 213, which are respectively located in the center direction of the sub-rollers. A guide rope plate 215 is provided on the side of the guide rope plate 213 away from the wire rope loading roller 212. A guide rope roller 323 is provided on the steering frame 311, and a number of guide rope holes 216 corresponding to the position of the lifting wire rope body 411 are provided on the guide rope plate 215. A number of guide rope grooves 324 are provided at the bottom of the moving frame 315, and a number of inclined grooves 325 are provided at the bottom of the moving frame 317. The wire rope is fixed in the fixed rope hole 326 through the guide rope hole 214, the guide rope hole 216, the guide rope roller 323, the guide rope groove 324 and the inclined groove 325.

[0051] Working principle of the wire rope conveying frame 21: When the wire rope loading roller 212 conveys the wire rope, the wire rope is fixed in the fixed rope hole 326 through the guide rope hole 1 214, the guide rope hole 216, the guide rope roller 323, the guide rope groove 324 and the inclined groove 325. When the wire rope needs to be replaced later, the wire rope can be reeled onto the wire rope loading roller 212 in advance. During the process, the wire rope can be directly conveyed to the guide rope hole 216 through the guide rope roller 323, and reeled onto the split roller through the guide rope hole 1 214.

[0052] The present invention provides a quick rope changing device for a multi-rope friction mine hoist. The working principle of the present invention when used for operation and transportation is as follows:

[0053] The roller 224 on the wire rope conveying frame 21 is moved to a predetermined position by rolling on the track 5 and fixed, and the driving motor 1 is started. When the box-type skip 413 on one side away from the wire rope conveying frame 21 rises to the wellhead, the anti-drop mechanism 51 is started to make the wellhead closed. At this time, the box-type skip 413 is fixed below the docking block 2 518. The staff can remove the old wire hoisting rope at this time, and start the auxiliary rope changing mechanism 31 to assist the staff to connect the wire rope on the auxiliary rope changing mechanism 31 with the connecting rope 412 on the fixed box-type skip 413;

[0054] After the connection, the wire recovery and winding equipment and the wire rope conveying frame 21 are started at the same time. When the heights of the two box-type skips 413 are interchanged, the anti-drop mechanism 51 fixes the box-type skip 413 on the side close to the wire rope conveying frame 21 again, and then the auxiliary rope changing mechanism 31 is started to change the position and assist the staff in changing the rope. After the rope changing is completed, the rope tightening device can be used to make the tension of the replaced wire rope uniform.

[0055] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A quick rope changing device for a multi-rope friction mine hoist, comprising a wellhead support plate (1), a motor base (6) being provided on the wellhead support plate (1), a drive motor 1 (2) being provided on the motor base (6), a reducer (3) being provided at the output end of the drive motor 1 (2), a rope holding drum (4) being provided at the end of the reducer (3), a multi-rope structure (41) being provided on the rope holding drum (4), and a main shaft support column (7) being provided at the end, characterized in that: The wellhead support plate (1) is provided with a wire rope conveying frame (21) located on one side of the rope holding drum (4), the wire rope conveying frame (21) is provided with an auxiliary rope changing mechanism (31), and the bottom of the wellhead support plate (1) is provided with an anti-drop mechanism (51); The wire rope conveying frame (21) comprises a frame body (211), one end of which is rotatably provided with a wire rope loading roller (212), and the other end of which is provided with a top frame (217), and the bottom of the top frame (217) is provided with an arc-shaped guide groove (218), and the auxiliary rope changing mechanism (31) comprises a steering frame (311) located inside the top frame (217), both ends of the steering frame (311) are provided with connecting columns (312), and the ends of the connecting columns (312) are provided with guide sliding blocks (313) slidably connected to the arc-shaped guide groove (218), and the steering frame (311) is provided with a guide sliding block (313) slidably connected to the arc-shaped guide groove (218). A moving frame (315) is provided in the frame (311), a screw rod (316) is provided in the moving frame (315), an external thread of the screw rod (316) is provided with a moving frame (317) that slides in the moving frame (315), an electric telescopic rod (318) is provided in the moving frame (317), a steel wire fixing plate (319) is provided at the end of the electric telescopic rod (318), a locking plate (320) is hinged at the bottom of the steel wire fixing plate (319), and the end of the steel wire on the steel wire loading roller (212) is fixed by the steel wire fixing plate (319) and the locking plate (320).

2. A quick rope changing device for a multi-rope friction mine hoist according to claim 1, characterized in that: The wellhead support plate (1) is provided with a support plate slot (8) located directly below the rope drum (4), the multi-rope structure (41) is located in the support plate slot (8), the multi-rope structure (41) comprises a plurality of lifting wire rope bodies (411) wound around the rope drum (4), box-type skips (413) are provided below both ends of the lifting wire rope bodies (411), the box-type skips (413) are provided with a plurality of connecting rings (414), the connecting rings (414) are connected with connecting ropes (412), the top end of the connecting rope (412) is connected to the end of the lifting wire rope body (411), and a tail rope (415) is connected between the bottoms of the two box-type skips (413).

3. A quick rope changing device for a multi-rope friction mine hoist according to claim 1, characterized in that: The anti-drop mechanism (51) comprises a bottom frame (511) located at the bottom of the wellhead support plate (1), a transmission rod (512) is provided at both ends of the bottom frame (511), a thread groove 1 (513) and a thread groove 2 (514) are provided at both ends of the transmission rod (512), the thread groove 1 (513) is provided with a screw block 1 (515) on the external thread, a plurality of docking blocks 1 (516) are provided on the screw block 1 (515), the gap size between the plurality of docking blocks 1 (516) is larger than the diameter of the lifting wire rope, the thread groove 2 (514) is provided with a screw block on the external thread The screw block (517) is provided with a plurality of docking blocks (518) corresponding to the positions of the docking blocks (516). The ends of the two transmission rods (512) are provided with bevel gears (521). The bevel gears (521) are meshed with bevel gears (522). A rotating rod (523) is provided between the two bevel gears (522). The rotating rod (523) is provided with a driven gear (524). The driven gears (524) are meshed with driving gears (525). The driving gears (525) are driven by driving motors (526).

4. A quick rope changing device for a multi-rope friction mine hoist according to claim 3, characterized in that: The ends of the plurality of docking blocks one (516) are each provided with an insertion rod (519), and the ends of the plurality of docking blocks two (518) are each provided with an insertion hole (520), and the insertion rod (519) is plugged into the insertion hole (520).

5. A quick rope changing device for a multi-rope friction mine hoist according to claim 1, characterized in that: A track (5) is provided on the wellhead support plate (1), a slide groove (223) slidably connected to the track (5) is provided at the bottom of the frame (211), a roller (224) rollingly connected to the track (5) is provided on the slide groove (223), and a limit block (9) is provided at the end of the track (5).

6. A quick rope changing device for a multi-rope friction mine hoist according to claim 2, characterized in that: The wire rope loading roller (212) is composed of a plurality of sub-rollers having the same number as the lifting wire rope body (411), and the sub-rollers are wound with wire ropes. A rope guide plate (213) is provided in the frame (211), and a plurality of rope guide holes (214) are provided on the rope guide plate (213) respectively located in the center direction of the sub-rollers. A rope guide plate (215) is provided on the side of the rope guide plate (213) away from the wire rope loading roller (212). The steering frame (311) is provided with a rope guide roller ( 323), a plurality of rope guide holes (216) corresponding to the positions of the lifting wire rope body (411) are provided on the rope guide plate (215), a plurality of rope guide grooves (324) are provided at the bottom of the movable frame (315), a plurality of inclined grooves (325) are provided at the bottom of the movable frame (317), and the wire rope is fixed in the fixed rope hole (326) through the rope guide hole (214), the rope guide hole (216), the rope guide roller (323), the rope guide groove (324) and the inclined groove (325).

7. A quick rope changing device for a multi-rope friction mine hoist according to claim 1, characterized in that: A limit plate (219) is provided at the end of the top frame (217), a traction machine (220) is provided on the limit plate (219), a connecting ring (314) is provided at both the upper and lower ends of the steering frame (311), a traction rope on the traction machine (220) is connected to the upper connecting ring (314), a mounting groove (221) is provided at the bottom of one end of the frame (211), a traction machine (222) is provided in the mounting groove (221), and a traction rope on the traction machine (222) is connected to the lower connecting ring (314).

8. A quick rope changing device for a multi-rope friction mine hoist according to claim 1, characterized in that: The bottom of the locking plate (320) is threadedly provided with a wire rope fixing bolt (322) corresponding to the positions of the plurality of fixing rope holes (326); the end of the wire rope fixing bolt (322) passes through the locking plate (320) and is located in the fixing rope hole (326); locking bolts (321) are provided on both sides of the wire rope fixing bolt (322).

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