A compact electric rope-reversing machine special for well servicing truck

Abstract

The utility model discloses a compact special electric rope reversing machine of vehicle-mounted well repairing machine relates to rope reversing machine technical field, the utility model discloses a base and with the first support, second support and third support of base top fixed connection are equipped with start -stop mechanism between the first support and second support, be equipped with speed reduction mechanism between second support and third support, the utility model discloses a rotating shaft is set to rotate the limiting rod, and the limiting rod is removed to the limit of connecting plate, and the handle is pulled to the direction of the second pivot of connecting plate, and the connecting plate will drive the second pivot to slide in the limiting frame, and the second pivot will also drive the limiting ring to slide in the rotary drum, thereby making the second pivot and the slot on the limiting shaft separate, reaches the rotation of the rope drum can be controlled at any time, can effectively avoid the sustained movement of the rope, prevents the rope to appear slack, twisted or uneven state, keeps the effect of wellhead equipment and operating tool stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of rope rewinding machines, and in particular relates to a compact vehicle-mounted electric rope rewinding machine specifically designed for well repair rigs. Background Technology

[0002] An electric rope reel for workover rigs is a piece of equipment used in oil and gas drilling operations. It is mainly used to lift and lower drilling tools. The electric rope reel controls the tension of the rope and the lifting speed through an electric drive system and is typically used in operations near the wellhead.

[0003] Electric rope rewinding machines for workover rigs typically require a rope guide roller to guide the steel rope. If it is inconvenient to start and stop the rope guide roller at any time during the rope guiding process, the steel rope may become slack, twisted, or uneven due to the continuous movement of the rope, which will affect the stability of the wellhead operation. Therefore, we have proposed a compact vehicle-mounted electric rope rewinding machine specifically for workover rigs. Utility Model Content

[0004] The purpose of this utility model is to provide a compact electric rope rewinding machine for vehicle-mounted well workover rigs. By pulling the connecting plate with the handle, the connecting plate drives the second rotating shaft to slide within the limiting ring, thereby disengaging the second rotating shaft from the limiting shaft and solving the problem of stopping the rope guide roller at any time.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a compact vehicle-mounted electric rope rewinding machine for well repair rigs, including a base and a first bracket, a second bracket and a third bracket fixedly connected to the top of the base. A start-stop mechanism is provided between the first bracket and the second bracket, and a speed reduction mechanism is provided between the second bracket and the third bracket.

[0007] The start / stop mechanism includes a first rotating shaft rotatably connected between a first bracket and a second bracket. A large gear is fixedly connected to the end of the first rotating shaft away from the first bracket. A connecting shell is fixedly connected to the side of the second bracket away from the first bracket. The large gear is disposed inside the connecting shell. A first gear meshes with one side of the large gear. A transmission assembly is provided on the other side of the large gear. A limit shaft is fixedly connected to the side of the first gear near the first rotating shaft. A slot is provided inside the limit shaft. A second rotating shaft is inserted into the inner wall of the slot. A limit ring is fixedly connected to the outer surface of the second rotating shaft. A rotating cylinder fixedly connected to the outer surface of the connecting shell is slidably connected to the outer surface of the limit ring. A guide rope roller fixedly connected to the outer surface of the second rotating shaft is provided between the rotating cylinder and the first bracket. A limit assembly is provided at the end of the second rotating shaft away from the connecting shell.

[0008] Furthermore, the transmission assembly includes a second gear meshing on the outer surface of the large gear. The second gear is disposed inside the connecting housing. A support plate is fixedly connected to one side of the first bracket and the second bracket that are close to each other. A servo motor is fixedly connected to the outer surface of the support plate. A reducer is fixedly connected to the output shaft of the servo motor through a coupling. A third rotating shaft that is fixedly connected to the outer surface of the second gear is fixedly connected to the output end of the reducer.

[0009] Furthermore, the limiting component includes a limiting block rotatably connected to the inner wall of the second rotating shaft. A connecting plate is fixedly connected to the end of the limiting block away from the second rotating shaft. A handle is fixedly connected to the outer surface of the connecting plate. A limiting frame is fixedly connected to the side of the first bracket near the connecting plate. Two first sliding grooves matching the outer surface of the connecting plate are opened inside the limiting frame. A limiting rod is threadedly connected to the inner wall of the limiting frame. The end of the limiting rod near the second rotating shaft contacts the outer surface of the connecting plate.

[0010] Furthermore, the slot is a keyway, and the end of the second rotating shaft away from the rotating cylinder is rotatably connected to a limiting frame that is fixedly connected to the outer surface of the first bracket. A gap is provided between the guide rope roller and the limiting frame to allow the guide rope roller to move.

[0011] Furthermore, the speed reduction mechanism includes a fourth rotating shaft fixedly connected to the side of the large gear away from the first rotating shaft. The outer surface of the fourth rotating shaft is rotatably connected to the inner wall of the third bracket. A large rope drum is fixedly connected to the outer surface of the fourth rotating shaft. A cover plate is fixedly connected to the inner wall of the base. A fixed shell is fixedly connected to the inner wall of the cover plate. A slide plate is slidably connected to the inner wall of the fixed shell. Two second sliding grooves matching the outer surface of the slide plate are opened inside the fixed shell. Two top plates are rotatably connected to the bottom of the slide plate. A moving strip that is slidably connected to the inner wall of the base is rotatably connected to the end of each of the two top plates away from the slide plate. An electric push rod that is fixedly connected to the inner wall of the base is fixedly connected to the side of the moving strip away from the top plate. Two push plates are rotatably connected to the top of the slide plate. A contact strip that is slidably connected to the inner wall of the fixed shell is rotatably connected to the end of each of the two push plates away from the slide plate. A fixing component is provided on the outer surface of the contact strip.

[0012] Furthermore, the fixing assembly includes two driven bars fixedly connected to the outer surface of the contact bar. The outer surfaces of the two driven bars are slidably connected to a connecting bar fixedly connected to the outer surface of the fixing shell. The inner wall of the connecting bar is threaded with two bolts, and the outer surfaces of the two bolts are rotatably connected to the inner wall of the driven bar.

[0013] Furthermore, the connecting strip is L-shaped, and the connecting strip has internal threads that match the outer surface of the bolt.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model uses a rotating shaft to rotate the limiting rod, releasing the limiting rod from restricting the connecting plate. Then, by pulling the connecting plate away from the second rotating shaft using the handle, the connecting plate will drive the second rotating shaft to slide within the limiting frame. At the same time, the second rotating shaft will also drive the limiting ring to slide within the rotating drum, thereby disengaging the second rotating shaft from the slot on the limiting shaft. By using the second rotating shaft, which can disengage from the limiting shaft, the rotation of the guide rope drum can be controlled at any time, effectively preventing continuous movement of the rope and preventing the rope from becoming slack, twisted, or uneven, thus maintaining the stability of the wellhead equipment and working tools.

[0016] 2. This utility model incorporates a contact bar. Two electric push rods push the sliding bar towards each other, which in turn pushes the top plate. The top plate then lifts the sliding plate upwards, which in turn lifts the push plate upwards. The push plate then pushes the contact bar, causing it to contact the large rope reel. This contact between the contact bar and the large rope reel helps to slow down the reel, allowing for more accurate adjustment of the wire rope tension and preventing excessive rope tension, thus avoiding damage to the equipment or tools.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the support plate structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the servo motor structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the large gear structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the second rotating shaft structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the rotating drum structure of this utility model;

[0025] Figure 7This is a schematic diagram of the rope-guiding roller structure of this utility model;

[0026] Figure 8 This is a schematic diagram of the limiting frame structure of this utility model;

[0027] Figure 9 This is a schematic diagram of the connecting shell structure of this utility model;

[0028] Figure 10 This is a schematic diagram of the fourth rotating shaft structure of this utility model;

[0029] Figure 11 This is a schematic diagram of the fixed shell structure of this utility model;

[0030] Figure 12 This is a schematic diagram of the contact strip structure of this utility model;

[0031] Figure 13 This is a schematic diagram of the skateboard structure of this utility model;

[0032] Figure 14 This is a schematic diagram of the connecting strip structure of this utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 101. Base; 102. First bracket; 103. Second bracket; 104. Third bracket; 2. Start / stop mechanism; 201. First rotating shaft; 202. Large gear; 203. Connecting shell; 204. First gear; 205. Limiting shaft; 206. Slot; 207. Second rotating shaft; 208. Limiting ring; 209. Rotating drum; 210. Guide rope roller; 211. Limiting frame; 212. Limiting rotating block; 213. Connecting plate; 214. Handle; 215. Limiting frame; 216. First slide 217. Groove; 218. Limiting rod; 219. Support plate; 220. Servo motor; 221. Reducer; 222. Third rotating shaft; 222. Second gear; 3. Speed ​​reduction mechanism; 301. Fourth rotating shaft; 302. Large rope drum; 303. Cover plate; 304. Fixed shell; 305. Slide plate; 306. Second slide groove; 307. Top plate; 308. Moving bar; 309. Electric push rod; 310. Push plate; 311. Contact bar; 312. Driven bar; 313. Connecting bar; 314. Bolt. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-14 As shown, this utility model is a compact vehicle-mounted electric rope rewinding machine for well repair rigs, including a base 101 and a first bracket 102, a second bracket 103 and a third bracket 104 fixedly connected to the top of the base 101. A start-stop mechanism 2 is provided between the first bracket 102 and the second bracket 103, and a speed reduction mechanism 3 is provided between the second bracket 103 and the third bracket 104. The start-stop mechanism 2 can be used to start and stop the device at any time, and the speed reduction mechanism 3 can be used to assist in reducing the speed of the device to ensure the safety of the construction operation.

[0037] The start / stop mechanism 2 includes a first rotating shaft 201 rotatably connected between a first bracket 102 and a second bracket 103. A large gear 202 is fixedly connected to one end of the first rotating shaft 201 away from the first bracket 102. A connecting shell 203 is fixedly connected to one side of the second bracket 103 away from the first bracket 102. The large gear 202 is disposed inside the connecting shell 203. A first gear 204 meshes with one side of the large gear 202. The first bracket 102 and the second bracket 103 fix the position of the first rotating shaft 201, thereby fixing the position of the large gear 202 and providing support for the large gear 202.

[0038] On the other side of the large gear 202, a transmission component is provided. The first gear 204 is fixedly connected to a limiting shaft 205 on the side near the first rotating shaft 201. A slot 206 is provided inside the limiting shaft 205. A second rotating shaft 207 is inserted into the inner wall of the slot 206. The limiting shaft 205 supports the first gear 204, so that the first gear 204 can rotate stably in the connecting shell 203, ensuring that the device can perform normal transmission.

[0039] A limiting ring 208 is fixedly connected to the outer surface of the second rotating shaft 207. A rotating drum 209, which is fixedly connected to the outer surface of the connecting shell 203, is slidably connected to the outer surface of the limiting ring 208. A rope guide roller 210, which is fixedly connected to the outer surface of the second rotating shaft 207, is provided between the rotating drum 209 and the first bracket 102. A limiting component is provided at the end of the second rotating shaft 207 away from the connecting shell 203. The limiting ring 208, which can slide inside the rotating drum 209, allows the second rotating shaft 207 to move, thereby disengaging the second rotating shaft 207 from the limiting shaft 205 and stopping the rope guide roller 210 from rotating at any time.

[0040] The transmission assembly includes a second gear 222 meshing with the outer surface of the large gear 202. The second gear 222 is located inside the connecting housing 203. A support plate 218 is fixedly connected to the side of the first bracket 102 and the second bracket 103 that are close to each other. The connecting housing 203 fixes the position of the second gear 222, so that the second gear 222 can only rotate inside the connecting housing 203, ensuring that the device can transmit normally. A servo motor 219 is fixedly connected to the outer surface of the support plate 218. The output shaft of the servo motor 219 is fixedly connected to a reducer 220 through a coupling. The output end of the reducer 220 is fixedly connected to a third rotating shaft 221 that is fixedly connected to the outer surface of the second gear 222. The support plate 218 fixes the servo motor 219, preventing the servo motor 219 from rotating due to operation, and ensuring the stability of the device's transmission.

[0041] The limiting assembly includes a limiting block 212 rotatably connected to the inner wall of the second rotating shaft 207. A connecting plate 213 is fixedly connected to the end of the limiting block 212 away from the second rotating shaft 207. A handle 214 is fixedly connected to the outer surface of the connecting plate 213. A limiting frame 215 is fixedly connected to the side of the first bracket 102 closest to the connecting plate 213. The limiting block 212 prevents the connecting plate 213 from rotating when the second rotating shaft 207 rotates. The connecting plate 213 can also control the rotation of the second rotating shaft 207. 7. When pulled, the limiting frame 215 has two first sliding grooves 216 that match the outer surface of the connecting plate 213. The inner wall of the limiting frame 215 is threaded with a limiting rod 217. One end of the limiting rod 217 near the second rotating shaft 207 contacts the outer surface of the connecting plate 213. The limiting rod 217 can be tightened inside the limiting frame 215. At this time, the limiting rod 217 will contact the connecting plate 213 and fix the position of the connecting plate 213, thereby fixing the position of the second rotating shaft 207.

[0042] The slot 206 is a keyway. The end of the second rotating shaft 207 away from the rotating drum 209 is rotatably connected to a limiting frame 211 that is fixedly connected to the outer surface of the first bracket 102. There is a gap between the rope roller 210 and the limiting frame 211 for the rope roller 210 to move. The slot 206 here is set as a keyway, which on the one hand facilitates the connection between the second rotating shaft 207 and the limiting shaft 205, and on the other hand, the strength of the keyway is sufficient to support the limiting shaft 205 to drive the second rotating shaft 207 to rotate.

[0043] The speed reduction mechanism 3 includes a fourth rotating shaft 301 fixedly connected to the side of the large gear 202 away from the first rotating shaft 201. The outer surface of the fourth rotating shaft 301 is rotatably connected to the inner wall of the third bracket 104. A large rope drum 302 is fixedly connected to the outer surface of the fourth rotating shaft 301. A cover plate 303 is fixedly connected to the inner wall of the base 101. The large gear 202 will drive the fourth rotating shaft 301 to rotate, and then the fourth rotating shaft 301 will drive the large rope drum 302 to rotate, thereby enabling the device to perform the work of winding and unwinding the rope.

[0044] A fixed shell 304 is fixedly connected to the inner wall of the cover plate 303. A sliding plate 305 is slidably connected to the inner wall of the fixed shell 304. Two second sliding grooves 306 that match the outer surface of the sliding plate 305 are opened inside the fixed shell 304. Two top plates 307 are rotatably connected to the bottom of the sliding plate 305. The second sliding grooves 306 restrict the movement trajectory of the sliding plate 305 to prevent the sliding plate 305 from deviating during movement and to ensure the stability of the device.

[0045] Both top plates 307 have a movable strip 308 rotatably connected to the end of each plate away from the slide plate 305, which is slidably connected to the inner wall of the base 101. The movable strip 308 is fixedly connected to an electric push rod 309 fixedly connected to the inner wall of the base 101 on the side away from the top plate 307. Two push plates 310 are rotatably connected to the top of the slide plate 305. The end of each push plate 310 away from the slide plate 305 has a contact strip 311 rotatably connected to the inner wall of the fixed shell 304. The outer surface of the contact strip 311 is provided with a fixing component. The electric push rod 309 pushes the movable strip 308, and then the movable strip 308 causes the slide plate 305 to move upward through the top plate 307. After that, the slide plate 305 causes the contact strip 311 to move in a direction away from each other through the push plate 310.

[0046] The fixing assembly includes two driven bars 312 fixedly connected to the outer surface of the contact bar 311. The outer surfaces of the two driven bars 312 are slidably connected to a connecting bar 313 fixedly connected to the outer surface of the fixing shell 304. The inner wall of the connecting bar 313 is threaded with two bolts 314. The outer surfaces of the two bolts 314 are rotatably connected to the inner wall of the driven bar 312. When the contact bar 311 moves, it will drive the driven bar 312 to move. Then the contact bar 311 will come into contact with the large rope drum 302, and a certain friction will be generated between the contact bar 311 and the large rope drum 302 to assist the large rope drum 302 in slowing down.

[0047] The connecting bar 313 is L-shaped and has a thread inside that matches the outer surface of the bolt 314. The bolt 314 can be tightened into the connecting bar 313. At this time, the bolt 314 will also enter the driven bar 312 to fix the position of the driven bar 312.

[0048] One specific application of this embodiment is:

[0049] When staff need to use the equipment and need to guide the rope, they can start the servo motor 219. At this time, the servo motor 219 will drive the second gear 222 to rotate through the reducer 220. Then the second gear 222 will cause the large gear 202 to rotate. At this time, the large gear 202 will drive the large rope drum 302 to rotate and release the rope through the fourth rotating shaft 301. At the same time, the large gear 202 will also drive the first gear 204 to rotate. At this time, the first gear 204 will drive the second rotating shaft 207 to rotate through the slot 206 on the limit shaft 205. Then the second rotating shaft 207 will drive the rope guide drum 210 to rotate and guide the rope.

[0050] When it is necessary to stop the rotation of the guide rope roller 210, the limiting rod 217 can be rotated within the limiting frame 215. At this time, the limiting rod 217 will move away from the connecting plate 213, thereby releasing the limitation of the limiting rod 217 on the connecting plate 213. Then, the connecting plate 213 can be pulled away from the second rotating shaft 207 by the handle 214. At this time, the connecting plate 213 will drive the second rotating shaft 207 to slide within the limiting frame 211. Simultaneously, the second rotating shaft 207 will also drive the limiting ring 208 to slide within the rotating drum 209, thereby allowing the second rotating shaft to... 207 disengages from the slot 206 on the limiting shaft 205. The slot 206 here is a keyway, which facilitates the connection between the second rotating shaft 207 and the limiting shaft 205. On the other hand, the keyway is strong enough to support the limiting shaft 205 to drive the second rotating shaft 207 to rotate. At this time, the first gear 204 will no longer drive the guide rope drum 210 to rotate, so that the rotation of the guide rope drum 210 can be controlled at any time. This can effectively prevent the continuous movement of the rope and prevent the rope from becoming slack, twisted or uneven, thus maintaining the stability of the wellhead equipment and working tools.

[0051] When the rope release is complete and the large rope drum 302 needs to be stopped from rotating, the bolt 314 can be unscrewed from the connecting bar 313 to release the bolt 314 from the driven bar 312. Then, the servo motor 219 is stopped and the two electric push rods 309 are started. At this time, the two electric push rods 309 will push the moving bar 308 in the direction of moving closer to each other, and then the moving bar 308 will push the top plate 307.

[0052] Then, the top plate 307 will lift the slide plate 305 upwards, and the slide plate 305 will lift the push plate 310 upwards. Then, the push plate 310 will push the contact bar 311, causing the contact bar 311 to come into contact with the large rope drum 302. A certain frictional force is generated between the contact bar 311 and the large rope drum 302, which helps the large rope drum 302 to decelerate. This achieves the effect of assisting the large rope drum 302 to slow down, allowing for more accurate adjustment of the wire rope tension, avoiding excessive rope tension, and thus preventing damage to equipment or operating tools.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A compact electric rope-reversing machine for a well servicing truck, comprising a base (101) and a first support (102), a second support (103) and a third support (104) fixedly connected to the top of the base (101), characterized in that: A start-stop mechanism (2) is provided between the first support (102) and the second support (103), and a deceleration mechanism (3) is provided between the second support (103) and the third support (104); The start / stop mechanism (2) includes a first rotating shaft (201) rotatably connected between a first bracket (102) and a second bracket (103). A large gear (202) is fixedly connected to one end of the first rotating shaft (201) away from the first bracket (102). A connecting shell (203) is fixedly connected to one side of the second bracket (103) away from the first bracket (102). The large gear (202) is disposed inside the connecting shell (203). A first gear (204) meshes with one side of the large gear (202). A transmission assembly is provided on the other side of the large gear (202). The first gear (204) is close to the first rotating shaft (201). A limiting shaft (205) is fixedly connected to one side of the first bracket (102). A slot (206) is provided inside the limiting shaft (205). A second rotating shaft (207) is inserted into the inner wall of the slot (206). A limiting ring (208) is fixedly connected to the outer surface of the second rotating shaft (207). A rotating cylinder (209) fixedly connected to the outer surface of the connecting shell (203) is slidably connected to the outer surface of the limiting ring (208). A guide rope roller (210) fixedly connected to the outer surface of the second rotating shaft (207) is provided between the rotating cylinder (209) and the first bracket (102). A limiting component is provided at the end of the second rotating shaft (207) away from the connecting shell (203).

2. The compact vehicle-mounted electric rope rewinding machine for well workover rigs according to claim 1, characterized in that, The transmission assembly includes a second gear (222) meshing with the outer surface of a large gear (202). The second gear (222) is disposed inside the connecting housing (203). A support plate (218) is fixedly connected to the side of the first bracket (102) and the second bracket (103) that are close to each other. A servo motor (219) is fixedly connected to the outer surface of the support plate (218). A reducer (220) is fixedly connected to the output shaft of the servo motor (219) through a coupling. A third rotating shaft (221) is fixedly connected to the output end of the reducer (220) and is fixedly connected to the outer surface of the second gear (222).

3. The compact vehicle-mounted electric rope rewinding machine for well workover rigs according to claim 1, characterized in that, The limiting assembly includes a limiting block (212) rotatably connected to the inner wall of the second rotating shaft (207). A connecting plate (213) is fixedly connected to one end of the limiting block (212) away from the second rotating shaft (207). A handle (214) is fixedly connected to the outer surface of the connecting plate (213). A limiting frame (215) is fixedly connected to one side of the first bracket (102) near the connecting plate (213). Two first sliding grooves (216) matching the outer surface of the connecting plate (213) are opened inside the limiting frame (215). A limiting rod (217) is threadedly connected to the inner wall of the limiting frame (215). One end of the limiting rod (217) near the second rotating shaft (207) contacts the outer surface of the connecting plate (213).

4. The compact vehicle-mounted electric rope rewinding machine for well workover rigs according to claim 1, characterized in that, The slot (206) is a keyway. The end of the second rotating shaft (207) away from the rotating cylinder (209) is rotatably connected to a limiting frame (211) that is fixedly connected to the outer surface of the first bracket (102). A gap is provided between the rope roller (210) and the limiting frame (211) for the rope roller (210) to move.

5. A compact vehicle-mounted electric rope rewinding machine for well workover rigs according to claim 1, characterized in that, The speed reduction mechanism (3) includes a fourth rotating shaft (301) fixedly connected to the side of the large gear (202) away from the first rotating shaft (201). The outer surface of the fourth rotating shaft (301) is rotatably connected to the inner wall of the third bracket (104). A large rope drum (302) is fixedly connected to the outer surface of the fourth rotating shaft (301). A cover plate (303) is fixedly connected to the inner wall of the base (101). A fixed shell (304) is fixedly connected to the inner wall of the cover plate (303). A sliding plate (305) is slidably connected to the inner wall of the fixed shell (304). Two second sliding grooves (306) matching the outer surface of the sliding plate (305) are opened inside the fixed shell (304). (305) Two top plates (307) are rotatably connected to the bottom. The ends of the two top plates (307) away from the slide plate (305) are rotatably connected to a moving strip (308) that is slidably connected to the inner wall of the base (101). The side of the moving strip (308) away from the top plate (307) is fixedly connected to an electric push rod (309) that is fixedly connected to the inner wall of the base (101). Two push plates (310) are rotatably connected to the top of the slide plate (305). The ends of the two push plates (310) away from the slide plate (305) are rotatably connected to a contact strip (311) that is slidably connected to the inner wall of the fixed shell (304). The outer surface of the contact strip (311) is provided with a fixing component.

6. A compact vehicle-mounted electric rope rewinding machine for well workover rigs according to claim 5, characterized in that, The fixing assembly includes two driven bars (312) fixedly connected to the outer surface of the contact bar (311). The outer surfaces of the two driven bars (312) are slidably connected to a connecting bar (313) fixedly connected to the outer surface of the fixing shell (304). The inner wall of the connecting bar (313) is threaded with two bolts (314), and the outer surfaces of the two bolts (314) are rotatably connected to the inner wall of the driven bar (312).

7. A compact vehicle-mounted electric rope rewinding machine for well workover rigs according to claim 6, characterized in that, The connecting strip (313) is L-shaped, and the connecting strip (313) has a thread inside that matches the outer surface of the bolt (314).

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