A winch device for a crane

Abstract

The invention discloses a winch device for a crane, which belongs to the technical field of crane winches and comprises a main body module and a winch replacement module. The main body module comprises two crane rails, the outer surfaces of the two crane rails are both slidably connected with movable rail plates, a switching shaft rod is rotatably connected between the two movable rail plates, the outer surfaces of the two movable rail plates are both fixedly connected with fixed disks, and the two fixed disks are both located outside the switching shaft rod. The winch replacement module comprises a steering assembly arranged between one end of the switching shaft rod and one side of one of the movable rail plates. By arranging an installation assembly, a winch assembly, a protruding block, a steering assembly and a transmission assembly, the device can quickly complete the switching when the winch assembly has a problem and needs to be repaired and replaced, thereby avoiding serious impact on the work of the crane and further improving the fault tolerance of the machine.

Description

Technical Field

[0001] The present invention relates to the technical field of crane winches, and more particularly to a winch device for a crane. Background Art

[0002] Crane refers to a multi-action lifting machine that can lift heavy objects vertically and carry them horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. A winch is a machine with a vertically mounted cable drum that can wind up but not store ropes under power drive. A winch is usually installed on a crane. The winch is generally directly fixed to the crane frame, so as to lift heavy objects vertically within a certain range.

[0003] According to the search, the patent with patent number CN113428793B discloses a winch for a crane that is easy to replace and maintain, including a winch mounting shell, a storage shaft, a quick replacement mechanism and a winch connecting base. A limit groove is provided at the bottom of the outer wall of the winch mounting shell, and a limit block matched with the limit groove is provided at the top of the side wall of the winch connecting base. A clamping plate is fixedly provided on the outer wall of the top of the winch connecting base. The bottom of the winch mounting shell contacts the upper surface of the clamping plate, and the storage shaft is rotatably connected between the two side walls of the winch mounting shell. The quick replacement mechanism is placed below the outer wall of the winch mounting shell, and the winch connecting base is placed at the bottom of the winch mounting shell. One end of the storage shaft is fixedly connected with a conical gear disc. The winch is easy and quick to install and disassemble, which is convenient for the replacement and maintenance of the winch. At the same time, it can be braked quickly and in time in case of looseness to avoid safety hazards to the staff.

[0004] With regard to the above-mentioned related technologies, although the above-mentioned winch can achieve the effect of rapid disassembly, which is convenient for the overall replacement and maintenance of the winch, it still adopts the conventional disassembly and replacement method. During the disassembly and replacement process, the machine needs to stop and wait, and the staff needs to replace it immediately. Only after the replacement is completed can the crane continue to be used. This method will seriously affect the working efficiency of the crane when the crane is busy. At the same time, if the staff is temporarily unable to get away for timely replacement due to work reasons, the winch will not be replaced in time, which will cause the crane to be shut down for a longer time and cannot be used. For this reason, we propose a winch device for a crane. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a winch device for a crane, which adopts the following technical solution:

[0006] A winch device for a crane comprises a main body module and a winch replacement module, wherein the main body module comprises two crane rails, the outer surfaces of the two crane rails are slidably connected with movable rail plates, a switching shaft is rotatably connected between the two movable rail plates, the outer surfaces of the two movable rail plates are fixedly connected with fixed disks, and the two fixed disks are located outside the switching shaft, and the winch replacement module comprises a steering assembly arranged between one end of the switching shaft and one side of one of the movable rail plates, the outer surface of the switching shaft is fixedly connected with two steering plates, and the positions near the top and bottom of the two steering plates are arranged inside There is an installation component, a winch component is arranged between every two of the installation components, adjacent sides of the two fixed plates are fixedly connected with protrusions, and the two installation components are respectively in contact with the two protrusions, a driving component is arranged between the lower parts of the two movable rail plates, and the driving component is connected to one of the winch components, a sliding rail component is arranged between the upper parts of the two movable rail plates, and two protective covers are connected to the sliding rail component, and the two protective covers are located outside the other winch component, and a transmission component is arranged on one side of one of the movable rail plates, and the transmission component is connected to the two protective covers and the steering component.

[0007] Furthermore, the winch assembly includes two raised mounting blocks, a winch body is rotatably connected between the two raised mounting blocks, two gear rings are fixedly connected to the outer surface of the winch body, a rope is provided on the outer surface of the winch body, and a lifting hook is connected to one end of the rope.

[0008] Furthermore, the mounting assembly includes a hollow column fixedly connected to the inside of one of the steering plates near the top position, a mounting groove being opened at one end of the hollow column, one of the raised mounting blocks being movably clamped in the mounting groove, a movable column being movably inserted at the other end of the hollow column, one end of the movable column being movably connected to a ball bearing, the outer surface of the ball bearing being adapted to the raised block, and a first spring being fixedly connected between the other end of the movable column and one end of the inner wall of the hollow column.

[0009] Furthermore, the mounting assembly also includes two hollow bars fixedly connected to the outer surface of the hollow column, and the two hollow bars are movably connected inside with a card block, and the outer surface of one of the raised mounting blocks is provided with two card grooves, and the two card blocks are respectively adapted to the two card grooves, and the outer surface of the hollow column is provided with two movable grooves, and the outer surface of the movable column is hinged with two connecting rocker rods, one end of the two connecting rocker rods is respectively hinged to the two card blocks, and the two connecting rocker rods are respectively located inside the two movable grooves, and a second spring is fixedly connected between the two card blocks and the inner walls of the two hollow bars.

[0010] Furthermore, the steering assembly includes a four-way groove wheel fixedly connected to one end of a switching shaft, wherein one side of one of the movable rail plates is rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a Geneva drive wheel, the outer surface of the Geneva drive wheel is movably connected to the outer surface of the four-way groove wheel, and the outer surface of the rotating shaft is fixedly connected to a first transmission roller.

[0011] Furthermore, the driving assembly includes four first sprockets, the interiors of the two movable rail plates are rotatably connected to rotating columns, the adjacent ends of the two rotating columns are fixedly connected to connecting gears, the outer surfaces of the two rotating columns are rotatably sleeved with mounting sleeves, the two mounting sleeves are respectively fixedly connected to the adjacent sides of the two movable rail plates, the adjacent sides of the two movable rail plates are rotatably connected to connecting rotating rods, one side of one of the movable rail plates is fixedly connected to a first motor, the output shaft of the first motor is fixedly connected to one end of the connecting rotating rod, wherein two of the first sprockets are fixedly connected to the outer surface of the connecting rotating rod, wherein the other two of the first sprockets are respectively fixedly connected to the opposite ends of the two rotating columns, a first chain is drivingly connected between the outer surfaces of each two of the first sprockets, and the two connecting gears are adapted to two gear rings.

[0012] Furthermore, the transmission assembly includes a second motor fixedly connected to the upper part of one side of one of the movable rail plates, the output shaft of the second motor is fixedly connected to an incomplete gear, the upper part of one side of the movable rail plates is rotatably connected to a second transmission roller, one side of the second transmission roller is fixedly connected to a transmission gear matched with the incomplete gear, and a transmission belt is transmission-connected between the second transmission roller and the outer surface of the first transmission roller.

[0013] Furthermore, the transmission assembly also includes four transmission shafts that are rotatably connected to the upper part of one side of one of the movable rail plates, one end of the four transmission shafts is fixedly connected to a second sprocket, a second chain is transmission-connected between the outer surfaces of every two of the second sprockets, the outer surfaces of the two second chains are fixedly connected to a swing shaft, one side of the two protective covers is fixedly connected to a transmission frame, and the two swing shafts are movably connected to the inside of the two transmission frames respectively.

[0014] Furthermore, the transmission assembly also includes two linkage gears, which are fixedly connected to the other ends of two adjacent transmission shafts, and the outer surfaces of the two linkage gears are meshed with each other. A pinion is fixedly connected to one side of one of the linkage gears, and the pinion is meshed with the incomplete gear.

[0015] Furthermore, the slide rail assembly includes two hollow rails respectively fixedly connected to the upper part of adjacent sides of the two movable rail plates, a metal slide bar is slidably connected between the insides of the two hollow rails, the two protective covers are respectively fixedly connected to the bottom of the two metal slide bars, the two ends of the inner walls of the two hollow rails are fixedly connected to the second magnetic blocks, the middle parts of the inner walls of the two hollow rails are fixedly connected to the first magnetic blocks, and the two first magnetic blocks are magnetically connected to the two metal slide bars.

[0016] In summary, the present invention includes the following beneficial technical effects:

[0017] (1) The present invention arranges the mounting assembly, the winch assembly, the protruding block, the steering assembly and the transmission assembly so that the device can be quickly switched when the winch assembly has a problem and needs to be repaired or replaced, thereby avoiding serious impact on the operation of the crane and improving the fault tolerance of the machine;

[0018] (2) The present invention arranges the protruding block, the protruding mounting block, the mounting groove, the ball bearing, the clamping block and the clamping groove, so that the device can realize automatic locking and unlocking of the winch assembly without requiring excessive operation by the staff, thus simplifying the operation steps of the staff, improving the convenience of disassembly and assembly, and facilitating the use of the device;

[0019] (3) The present invention provides a protective cover, a slide rail assembly and a transmission assembly, so that the device can protect the idle spare winch assembly, thereby minimizing the impact of the environment on the spare winch assembly, thereby improving the stability of the device during use;

[0020] (4) The present invention provides a hollow rail, a first magnetic block and a second magnetic block, so that the two protective covers can be more stable when opening and closing, thereby preventing their own activities from affecting the normal operation of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a winch replacement module of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the steering assembly and the driving assembly of the present invention;

[0024] Figure 4 It is a cross-sectional structural schematic diagram of the winch assembly of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the winch assembly of the present invention;

[0026] Figure 6 For the present invention Figure 4The enlarged structural diagram at A in the middle;

[0027] Figure 7 It is a structural schematic diagram of the slide rail assembly of the present invention;

[0028] Figure 8 It is a schematic diagram of the exploded structure of the slide rail assembly and the transmission assembly of the present invention;

[0029] Fig. 9 For the present invention Figure 8 Enlarged structural diagram at B in the middle.

[0030] Description of the numbers in the figure:

[0031] 100, main body module; 110, crane track; 120, movable track plate; 130, switching shaft rod; 140, fixed plate;

[0032] 200, capstan replacement module; 210, steering assembly; 211, four-way groove wheel; 212, rotating shaft; 213, first transmission roller; 214, Geneva drive wheel; 220, steering plate; 230, mounting assembly; 231, hollow column; 232, mounting groove; 233, movable column; 234, first spring; 235, ball bearing; 236, hollow bar; 237, clamping block; 238, second spring; 239, connecting swing rod; 240, capstan assembly; 241, raised mounting block; 242, capstan body; 243, gear ring; 244, rope; 245, lifting hook; 250, driving assembly; 251, mounting sleeve; 252, rotating column; 253. Connecting gear; 254. Connecting rotating rod; 255. First sprocket; 256. First chain; 257. First motor; 260. Slide rail assembly; 261. Hollow rail; 262. Metal slide bar; 263. First magnetic block; 264. Second magnetic block; 270. Protective cover; 280. Transmission assembly; 281. Second motor; 282. Incomplete gear; 283. Second transmission roller; 284. Transmission gear; 285. Transmission belt; 286. Transmission shaft; 287. Second sprocket; 288. Second chain; 289. Swing shaft; 2810. Transmission frame; 2811. Linkage gear; 2812. Pinion; 290. Protruding block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following is combined with Figure 1-9 The present invention is described in further detail.

[0037] See also Figure 1-9 A winch device for a crane includes a main body module 100 and a winch replacement module 200. The main body module 100 includes two crane rails 110. The outer surfaces of the two crane rails 110 are slidably connected with movable rail plates 120. A switching shaft 130 is rotatably connected between the two movable rail plates 120. The outer surfaces of the two movable rail plates 120 are fixedly connected with fixed disks 140. The two fixed disks 140 are both located outside the switching shaft 130. The winch replacement module 200 includes a steering assembly 210 arranged between one end of the switching shaft 130 and one side of one of the movable rail plates 120. The outer surface of the switching shaft 130 is fixedly connected with two steering plates 220. The positions near the top and bottom of the two steering plates 220 are both provided with mounting holes. Component 230, a winch component 240 is arranged between every two installation components 230, and the adjacent sides of the two fixed plates 140 are fixedly connected with a protrusion block 290, wherein the two installation components 230 are respectively in contact with the two protrusion blocks 290, and a driving component 250 is arranged between the lower parts of the two movable rail plates 120, and the driving component 250 is connected to one of the winch components 240, and a slide rail component 260 is arranged between the upper parts of the two movable rail plates 120, and two protective covers 270 are connected to the slide rail component 260, and the two protective covers 270 are located on the outside of another one of the winch components 240, and a transmission component 280 is arranged on one side of one of the movable rail plates 120, and the transmission component 280 is connected to the two protective covers 270 and the steering component 210.

[0038] During use, the drive assembly 250 is turned on, and the drive assembly 250 will drive one of the winch assemblies 240 to rotate, thereby performing a lifting action, and the other spare winch assembly 240 will be located inside the two protective covers 270 for protection when not in use. When the winch assembly 240 in use needs to be repaired, the staff opens the transmission assembly 280, and the transmission assembly 280 will first drive the two protective covers 270 to open, and then the transmission assembly 280 drives the steering assembly 210, and the steering assembly 210 will drive the switching shaft 130 to rotate, and the switching shaft 130 will drive the two steering plates 220 to rotate. When the two steering plates 220 rotate, they will drive the winch assembly 240 located between the two protective covers 270 to rotate out and dock with the drive assembly 250, thereby So that it can continue to cooperate with the use of the crane and reduce the machine downtime. At the same time, another winch assembly 240 is separated from the drive assembly 250 and enters between the two protective covers 270. The two mounting assemblies 230 on the other winch assembly 240 will contact the two protruding blocks 290 respectively, thereby releasing the fixation of the winch assembly 240. The subsequent transmission assembly 280 will drive the two protective covers 270 to close to protect the retracted winch assembly 240. When the staff has time to replace the winch assembly 240, the transmission assembly 280 is opened in reverse to drive the two protective covers 270 to open, so that the staff can replace the corresponding winch assembly 240. After the replacement is completed, the transmission assembly 280 is controlled again to drive the two protective covers 270 to close to protect the spare winch assembly 240.

[0039] The winch assembly 240 includes two raised mounting blocks 241, between which a winch body 242 is rotatably connected, and the outer surface of the winch body 242 is fixedly connected to two gear rings 243, and the outer surface of the winch body 242 is provided with a rope 244, and one end of the rope 244 is connected to a lifting hook 245, and the mounting assembly 230 includes a hollow column 231 fixedly connected to one of the steering plates 220 near the top position, and one end of the hollow column 231 is provided with a mounting groove 232, and one of the raised mounting blocks 241 is movably snap-fitted into the interior of the mounting groove 232, and the other end of the hollow column 231 is movably plugged with a movable column 233, and one end of the movable column 233 is movably connected to a ball 235, and the outer surface of the ball 235 is adapted to the raised block 290, and the movable column 233 is movably connected to the outer surface of the ball 235. A first spring 234 is fixedly connected between the other end of 233 and one end of the inner wall of the hollow column 231. The mounting assembly 230 also includes two hollow bars 236 fixedly connected to the outer surface of the hollow column 231. The two hollow bars 236 are movably connected with blocks 237 inside. The outer surface of one of the raised mounting blocks 241 is provided with two slots, and the two blocks 237 are respectively adapted to the two slots. The outer surface of the hollow column 231 is provided with two movable slots. The outer surface of the movable column 233 is hinged with two connecting rocker rods 239. One end of the two connecting rocker rods 239 is respectively hinged to the two blocks 237. The two connecting rocker rods 239 are respectively located inside the two movable slots. A second spring 238 is fixedly connected between the two blocks 237 and the inner walls of the two hollow bars 236.

[0040] When the ball 235 is disengaged from the protruding block 290, the first spring 234 pushes the movable column 233 to move outward, and the movement of the movable column 233 drives the two connecting rocker bars 239 to pull the two blocks 237, and the two second springs 238 will also pull the two blocks 237 into the two slots, thereby locking and installing the winch assembly 240. When the ball 235 on the winch assembly 240 contacts the protruding block 290, the protruding block 290 pushes the movable column 233 to move in the opposite direction, so that the two blocks 237 are withdrawn from the slots at this time, thereby releasing the fixation of the winch assembly 240, so that the winch assembly 240 can be automatically locked and unlocked without excessive operation by the staff.

[0041] The steering assembly 210 includes a four-way groove wheel 211 fixedly connected to one end of the switching shaft 130, one side of one movable track plate 120 is rotatably connected to a rotating shaft 212, one end of the rotating shaft 212 is fixedly connected to a Geneva drive wheel 214, the outer surface of the Geneva drive wheel 214 is movably connected to the outer surface of the four-way groove wheel 211, the outer surface of the rotating shaft 212 is fixedly connected to a first transmission roller 213, the driving assembly 250 includes four first sprocket wheels 255, the interiors of the two movable track plates 120 are both rotatably connected to a rotating column 252, the adjacent ends of the two rotating columns 252 are both fixedly connected to a connecting gear 253, and the outer surfaces of the two rotating columns 252 are both rotatably sleeved with a mounting sleeve 2 51, two mounting sleeves 251 are respectively fixedly connected to adjacent surfaces of two movable rail plates 120, and adjacent surfaces of two movable rail plates 120 are rotatably connected with connecting rods 254, one side of one movable rail plate 120 is fixedly connected with a first motor 257, and the output shaft of the first motor 257 is fixedly connected with one end of the connecting rod 254, wherein two first sprocket wheels 255 are fixedly connected to the outer surface of the connecting rod 254, wherein the other two first sprocket wheels 255 are respectively fixedly connected to the opposite ends of the two rotating columns 252, and the outer surfaces of each two first sprocket wheels 255 are transmission-connected with a first chain 256, and the two connecting gears 253 are adapted to the two gear rings 243.

[0042] Turn on the second motor 281 to drive the incomplete gear 282 to rotate, so that the protective cover 270 is opened, and then the incomplete gear 282 is disengaged from the pinion 2812 and meshed with the transmission gear 284, and the transmission gear 284 drives the second transmission roller 283 to rotate the transmission belt 285, and the transmission belt 285 drives the first transmission roller 213, and the first transmission roller 213 drives the rotating shaft 212 and the Geneva drive wheel 214 to rotate, and the Geneva drive wheel 214 will rotate two times to drive the four-way groove wheel 211 to rotate 180 degrees, and the four-way groove wheel 211 drives the switching shaft 130 to rotate 180 degrees, and the switching shaft 130 will drive the two steering plates 220 to rotate, and the two steering plates 220 will rotate. When the steering plate 220 rotates, it will drive the winch assembly 240 located between the two protective covers 270 to rotate out, and the ball 235 will disengage from the protruding block 290, so that the first spring 234 will push the movable column 233 to move outward, and the movable column 233 will drive the two connecting rocker rods 239 to pull the two card blocks 237, and the two second springs 238 will also pull the two card blocks 237 into the two card slots, thereby locking the winch assembly 240, and subsequently the gear ring 243 above it will mesh and dock with the connecting gear 253, and the subsequent rotation of the connecting gear 253 can control it to perform lifting operations, so that it can continue to cooperate with the use of the crane and reduce the machine downtime.

[0043] The transmission assembly 280 includes a second motor 281 fixedly connected to the upper part of one side of one of the movable rail plates 120, the output shaft of the second motor 281 is fixedly connected to an incomplete gear 282, the upper part of one side of the movable rail plates 120 is rotatably connected to a second transmission roller 283, one side of the second transmission roller 283 is fixedly connected to a transmission gear 284 adapted to the incomplete gear 282, a transmission belt 285 is transmission-connected between the second transmission roller 283 and the outer surface of the first transmission roller 213, the transmission assembly 280 also includes four transmission shafts 286 that are rotatably connected to the upper part of one side of the movable rail plates 120, one end of the four transmission shafts 286 is fixedly connected to a second sprocket 287, the outer surfaces of every two second sprockets 287 are transmission-connected to a second chain 288, the outer surfaces of the two second chains 288 are fixedly connected to a swing shaft 289, one side of the two protective covers 270 is fixedly connected to a transmission frame 2810, and the two swing shafts 2 89 are respectively movably connected to the inside of the two transmission frames 2810, the transmission assembly 280 also includes two linkage gears 2811, the two linkage gears 2811 are fixedly connected to the other ends of two adjacent transmission shafts 286, the outer surfaces of the two linkage gears 2811 are meshed with each other, one side of one linkage gear 2811 is fixedly connected to a pinion 2812, the pinion 2812 is meshed with the incomplete gear 282, the slide rail assembly 260 includes two hollow rails 261 respectively fixedly connected to the upper part of the adjacent surface of the two movable rail plates 120, a metal slide bar 262 is slidably connected between the insides of the two hollow rails 261, the two protective covers 270 are respectively fixedly connected to the bottom of the two metal slide bars 262, the two ends of the inner walls of the two hollow rails 261 are fixedly connected to the second magnetic blocks 264, the middle parts of the inner walls of the two hollow rails 261 are fixedly connected to the first magnetic blocks 263, and the two first magnetic blocks 263 are magnetically connected to the two metal slide bars 262.

[0044] The pinion 2812 will be transmitted through the incomplete gear 282, and the pinion 2812 will drive the interlocking gear 2811 to rotate. The two interlocking gears 2811 will mesh with each other, so that the two transmission shafts 286 and the second sprocket 287 will rotate, so that the two second chains 288 will be driven to roll and drive the two swing shafts 289 away from each other. The two swing shafts 289 move inside the transmission frame 2810 and push the two protective covers 270 to open. The two protective covers 270 will drive the two metal slides 262 to separate from the first magnetic block 263 and move inside the two hollow rails 261. Subsequently, the two metal slides 262 are magnetically connected to the two second magnetic blocks 264 respectively.

[0045] The implementation principle of the embodiment of the present invention is as follows: during use, the first motor 257 is turned on, the first motor 257 will drive the connecting rod 254 to rotate, and the connecting rod 254 will drive the two rotating columns 252 to rotate through the transmission cooperation of the first sprocket 255 and the first chain 256 during the rotation, and the two rotating columns 252 will transmit the two gear rings 243 through the connecting gear 253, and the two gear rings 243 drive the winch body 242 to rotate forward or reverse, so as to realize the retraction and release of the rope 244, which is convenient for lifting operation. At this time, another spare winch assembly 240 will be located between the two protective covers 270 for protection. When the winch assembly 240 in use needs to be repaired and replaced, the staff will open it. The second motor 281 drives the incomplete gear 282 to rotate, and the incomplete gear 282 will drive the pinion 2812, and the pinion 2812 will drive the linkage gear 2811 to rotate. Through the meshing of the two linkage gears 2811, the two transmission shafts 286 and the second sprocket 287 rotate, and the two second chains 288 are driven to roll and drive the two swing shafts 289 to move away from each other. The two swing shafts 289 move inside the transmission frame 2810 and push the two protective covers 270 to open. The two protective covers 270 will drive the two metal slides 262 to separate from the first magnetic block 263 and move inside the two hollow rails 261. Subsequently, the two metal slides 262 are magnetically connected to the two second magnetic blocks 264 respectively. At this time, the incomplete The gear 282 is disengaged from the pinion 2812 and meshes with the transmission gear 284. The transmission gear 284 drives the second transmission roller 283 to rotate the transmission belt 285. The transmission belt 285 drives the first transmission roller 213. The first transmission roller 213 drives the rotating shaft 212 and the Geneva drive wheel 214 to rotate. The Geneva drive wheel 214 will rotate twice to drive the four-way groove wheel 211 to rotate 180 degrees. The four-way groove wheel 211 drives the switching shaft 130 to rotate 180 degrees. The switching shaft 130 will drive the two steering plates 220 to rotate. When the two steering plates 220 rotate, they will drive the winch assembly 240 located between the two protective covers 270 to rotate out. The ball 235 is disengaged from the protruding block 290, so that the first spring 234 pushes the movable column 233. The movable column 233 moves outward, and the two connecting rocker bars 239 pull the two card blocks 237. The two second springs 238 also pull the two card blocks 237 into the two card slots, thereby locking the winch assembly 240. Subsequently, the gear ring 243 above it engages with the connecting gear 253, so that the connecting gear 253 can rotate to control it to perform lifting operations, so that it can continue to cooperate with the use of the crane and reduce the machine downtime. At the same time, the gear ring 243 of another winch assembly 240 is separated from the connecting gear 253, and subsequently enters between the two protective covers 270. The ball 235 on the other winch assembly 240 will contact the protruding block 290, and the protruding block 290 pushes the movable column 233 to move in the opposite direction.The two clamping blocks 237 are then withdrawn from the clamping slots, thereby releasing the fixation of the winch assembly 240. Finally, the incomplete gear 282 will be connected to the pinion 2812 again for transmission, so that the two protective covers 270 will be driven in the opposite direction to close, and the two metal slide bars 262 will be reconnected to the first magnetic block 263, so that the two protective covers 270 are closed to protect the retracted winch assembly 240. When the staff has time to replace the winch assembly 240, the second motor 281 is turned on in the opposite direction to drive the two protective covers 270 to open, so that the staff can lift the corresponding winch assembly 240, and the raised mounting block 241 is withdrawn from the mounting slot 232 to complete the disassembly. After that, the new winch assembly 240 is reinstalled between the two mounting slots 232 to complete the replacement. After the replacement is completed, the second motor 281 is controlled again to drive the pinion 2812 to drive the two protective covers 270 to close to protect the spare winch assembly 240.

[0046] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A winch device for a crane, comprising a main body module (100) and a winch replacement module (200), characterized in that: The main body module (100) comprises two crane rails (110), the outer surfaces of the two crane rails (110) are slidably connected to movable rail plates (120), a switching shaft (130) is rotatably connected between the two movable rail plates (120), the outer surfaces of the two movable rail plates (120) are fixedly connected to fixed disks (140), and the two fixed disks (140) are located outside the switching shaft (130); The winch replacement module (200) comprises a steering assembly (210) arranged between one end of a switching shaft (130) and one side of one of the movable track plates (120); the outer surface of the switching shaft (130) is fixedly connected to two steering plates (220); mounting assemblies (230) are arranged near the top and bottom ends of the two steering plates (220); a winch assembly (240) is arranged between every two mounting assemblies (230); adjacent surfaces of the two fixed plates (140) are fixedly connected to protrusions (290); the two mounting assemblies (230) are respectively connected to the two protrusions (290); A driving assembly (250) is arranged between the lower parts of the two movable track plates (120), and the driving assembly (250) is connected to one of the winch assemblies (240); a sliding rail assembly (260) is arranged between the upper parts of the two movable track plates (120), and two protective covers (270) are connected to the sliding rail assembly (260), and the two protective covers (270) are located outside the other of the winch assemblies (240); a transmission assembly (280) is arranged on one side of one of the movable track plates (120), and the transmission assembly (280) is connected to the two protective covers (270) and the steering assembly (210); The winch assembly (240) comprises two raised mounting blocks (241), a winch body (242) being rotatably connected between the two raised mounting blocks (241), two gear rings (243) being fixedly connected to the outer surface of the winch body (242), a rope (244) being provided on the outer surface of the winch body (242), and a lifting hook (245) being connected to one end of the rope (244); The mounting assembly (230) comprises a hollow column (231) fixedly connected to a position near the top of one of the steering plates (220); a mounting groove (232) is provided at one end of the hollow column (231); one of the protruding mounting blocks (241) is movably clamped in the mounting groove (232); a movable column (233) is movably inserted at the other end of the hollow column (231); a ball (235) is movably connected to one end of the movable column (233); an outer surface of the ball (235) is adapted to fit the protruding block (290); and a first spring (234) is fixedly connected between the other end of the movable column (233) and one end of the inner wall of the hollow column (231); The mounting assembly (230) further comprises two hollow bars (236) both fixedly connected to the outer surface of the hollow column (231), the two hollow bars (236) are both movably connected with a clamping block (237) inside, the outer surface of one of the raised mounting blocks (241) is provided with two clamping grooves, the two clamping blocks (237) are respectively adapted to the two clamping grooves, the outer surface of the hollow column (231) is provided with two movable grooves, the outer surface of the movable column (233) is hinged with two connecting rocker rods (239), one end of the two connecting rocker rods (239) is respectively hinged with the two clamping blocks (237), the two connecting rocker rods (239) are respectively located inside the two movable grooves, and a second spring (238) is fixedly connected between the two clamping blocks (237) and the inner walls of the two hollow bars (236); The steering assembly (210) comprises a four-way groove wheel (211) fixedly connected to one end of a switching shaft (130), one side of one of the movable rail plates (120) is rotatably connected to a rotating shaft (212), one end of the rotating shaft (212) is fixedly connected to a Geneva drive wheel (214), an outer surface of the Geneva drive wheel (214) is movably connected to an outer surface of the four-way groove wheel (211), and an outer surface of the rotating shaft (212) is fixedly connected to a first transmission roller (213); The driving assembly (250) comprises four first sprocket wheels (255), the interiors of the two movable rail plates (120) are rotatably connected to a rotating column (252), the adjacent ends of the two rotating columns (252) are fixedly connected to a connecting gear (253), the outer surfaces of the two rotating columns (252) are rotatably sleeved with a mounting sleeve (251), the two mounting sleeves (251) are respectively fixedly connected to the adjacent sides of the two movable rail plates (120), the adjacent sides of the two movable rail plates (120) are rotatably connected to a connecting rotating rod (254), and one of the rotating columns (252) is fixedly connected to the adjacent sides of the two movable rail plates (120). A first motor (257) is fixedly connected to one side of the movable track plate (120), an output shaft of the first motor (257) is fixedly connected to one end of the connecting rotating rod (254), two of the first sprockets (255) are fixedly connected to the outer surface of the connecting rotating rod (254), another two of the first sprockets (255) are respectively fixedly connected to the opposite ends of the two rotating columns (252), a first chain (256) is transmission-connected between the outer surfaces of each two of the first sprockets (255), and the two connecting gears (253) are adapted to the two gear rings (243); The transmission assembly (280) comprises a second motor (281) fixedly connected to the upper part of one side of one of the movable rail plates (120); the output shaft of the second motor (281) is fixedly connected to an incomplete gear (282); the upper part of one side of one of the movable rail plates (120) is rotatably connected to a second transmission roller (283); one side of the second transmission roller (283) is fixedly connected to a transmission gear (284) matched with the incomplete gear (282); and a transmission belt (285) is transmission-connected between the second transmission roller (283) and the outer surface of the first transmission roller (213).

2. A winch device for a crane according to claim 1, characterized in that: The transmission assembly (280) further comprises four transmission shafts (286) which are rotatably connected to the upper part of one side of one of the movable rail plates (120); one end of each of the four transmission shafts (286) is fixedly connected to a second sprocket (287); a second chain (288) is transmission-connected between the outer surfaces of each two of the second sprockets (287); the outer surfaces of the two second chains (288) are fixedly connected to a swing shaft (289); one side of each of the two protective covers (270) is fixedly connected to a transmission frame (2810); and the two swing shafts (289) are movably connected to the interior of the two transmission frames (2810), respectively.

3. A winch device for a crane according to claim 2, characterized in that: The transmission assembly (280) further comprises two linkage gears (2811), the two linkage gears (2811) being fixedly connected to the other ends of two adjacent transmission shafts (286), the outer surfaces of the two linkage gears (2811) being meshed with each other, a pinion gear (2812) being fixedly connected to one side of one of the linkage gears (2811), the pinion gear (2812) being meshed with the incomplete gear (282).

4. A winch device for a crane according to claim 3, characterized in that: The slide rail assembly (260) comprises two hollow rails (261) respectively fixedly connected to the upper part of the adjacent surface of the two movable rail plates (120); a metal slide bar (262) is slidably connected between the insides of the two hollow rails (261); the two protective covers (270) are respectively fixedly connected to the bottom of the two metal slide bars (262); the two ends of the inner walls of the two hollow rails (261) are fixedly connected to the second magnetic blocks (264); the middle parts of the inner walls of the two hollow rails (261) are fixedly connected to the first magnetic blocks (263); and the two first magnetic blocks (263) are magnetically connected to the two metal slide bars (262).

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