Automatic take-up and pay-off device for geophysical exploration

Abstract

The invention provides an automatic take-up and pay-off device for geophysical exploration, and relates to the technical field of automatic take-up and pay-off, the automatic take-up and pay-off device comprises a mounting rack, a servo motor is arranged at the bottom in the mounting rack, the output end of the servo motor is connected with a driving gear, a rotating drum is rotatably connected between the mounting racks, and a cable is wound on the surface of the rotating drum; the automatic take-up and pay-off device further comprises an automatic take-up and pay-off mechanism, the automatic take-up and pay-off mechanism comprises a first U-shaped rod, the first U-shaped rod is arranged on one side of the mounting frame, a second U-shaped rod is arranged on the other side of the mounting frame, a first cross plate is slidably connected to the first U-shaped rod, and a second cross plate is slidably connected to the second U-shaped rod. According to the automatic pay-off device for geophysical exploration, through control of the servo motor driving system, the low-efficiency operation mode of traditional manual pay-off and take-up is changed.

Description

Technical Field

[0001] This invention relates to the field of automatic wire laying and take-up, and more specifically, to an automatic wire laying and take-up device for geophysical exploration. Background Technology

[0002] Current geophysical exploration operations generally rely on manual cable laying and retrieval. This traditional method has revealed efficiency bottlenecks and excessive labor intensity in modern large-scale exploration projects. Geophysical exploration typically requires the deployment of a large number of cables and sensors over a vast exploration area. The length of a single survey line can often reach several kilometers, and the total length of the cables involved can reach hundreds of kilometers. Workers need to manually carry heavy cable reels and lay the cables segment by segment along the predetermined survey line path. The weight of each cable segment is usually between tens and hundreds of kilograms. Continuous heavy physical labor not only consumes a lot of human resources, but also places extremely high demands on the physical fitness of the workers. In complex terrain conditions, such as mountains, swamps, forests, or deserts, manual handling and laying operations are even more difficult, and the work efficiency drops sharply. The laying of a single survey line often takes several days or even weeks.

[0003] Cable winding operations also face the problem of low efficiency. Workers must follow a strict sequence and standards to retract the cable section by section to avoid tangling and damage. This process requires the cooperation of multiple people, and the work rhythm depends on the speed and coordination of manual operation. Cable tangling and crossing during the winding process affect the efficiency of subsequent operations and the service life of equipment. Due to the lack of unified winding standards and mechanized guiding mechanisms, cables are prone to tangling, knotting, or folding when winding manually. These problems not only increase the difficulty of untangling during the next winding but may also cause mechanical damage to the internal conductors of the cable. Repeated improper winding operations can lead to wear on the cable sheath, breakage of internal conductors, or poor contact, seriously affecting the signal transmission quality and even causing the entire cable to be scrapped. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention provides an automatic wire laying and retrieval device for geophysical exploration to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automatic cable reeling and laying device for geophysical exploration includes a mounting frame. A servo motor is installed at the bottom of the mounting frame, and a drive gear is connected to the output end of the servo motor. A rotating drum is rotatably connected between the mounting frames, and a cable is wound on the surface of the rotating drum. The device also includes an automatic cable reeling and laying mechanism, which includes a first U-shaped rod. The first U-shaped rod is provided on one side of the mounting frame, and a second U-shaped rod is provided on the other side. A first cross plate is slidably connected to the first U-shaped rod, and a second cross plate is slidably connected to the second U-shaped rod. Two sets of sliding rods and two sets of thin rods are provided between the first cross plate and the second cross plate.

[0006] Preferably, the outer surfaces of the two sets of thin rods are slidably connected with lead screws, the lead screws are disposed between the mounting brackets and rotatably connected to the mounting brackets, one end of the lead screw is provided with a first friction block and the other end is provided with a second friction block, the surface of the rotating drum is provided with a take-up groove, the pitch of the take-up groove is consistent with the pitch of the thread groove on the surface of the lead screw, and the cable is adapted to the take-up groove.

[0007] Preferably, a slide is fitted on the outer surface of the rotating drum, and the upper and lower ends of the slide are threaded to two sets of lead screws. Push tubes are provided on both the left and right sides of the slide, and the push tubes are slidably connected to the slide rods. The surface of the slide is provided with a cable outlet hole adapted to the cable.

[0008] Preferably, a first reversing gear is fixedly sleeved on one end of the rotating drum, and first friction gears mesh on the upper and lower sides of the first reversing gear, with the lower first friction gear meshing with the drive gear.

[0009] Preferably, a first friction ring is slidably connected to the outer surface of the first friction block, the first friction ring abuts against the inner sidewall of the first friction gear, and a first retaining ring is provided on the other side of the first friction ring.

[0010] Preferably, a first annular frame is fitted on the outer surface of the first friction ring, one end of the first annular frame is fixedly connected to the side wall of the mounting frame, and multiple sets of first elastic stops are provided inside the first annular frame. The side wall of the first retaining ring abuts against the first elastic stops, and the side wall of the first retaining ring is engaged and fixed with the side wall of the first cross plate.

[0011] Preferably, a first helical gear is fixedly sleeved on the other end of the rotating drum, a reversing gear is rotatably connected to the second U-shaped rod, and a second helical gear is rotatably connected to the surface of the rotating drum. The reversing gear meshes with the first helical gear and the second helical gear respectively.

[0012] Preferably, a second reverse gear is fixedly sleeved on the outer surface of the second helical gear, and second friction gears mesh on the upper and lower sides of the second reverse gear.

[0013] Preferably, a second friction ring is slidably connected to the outer surface of the second friction block, the second friction ring abuts against the inner sidewall of the second friction gear, and a second retaining ring is provided on the other side of the second friction ring.

[0014] Preferably, a second annular frame is fitted on the outer surface of the second friction ring, one end of the second annular frame is fixedly connected to the side wall of the mounting frame, and multiple sets of second elastic stops are provided inside the second annular frame. The side wall of the second retaining ring abuts against the second elastic stops, and the side wall of the second retaining ring is engaged and fixed with the side wall of the second cross plate.

[0015] Compared with existing technologies, this invention provides an automatic cable laying and take-up device for geophysical exploration, which has the following beneficial effects: This automatic cable laying and take-up device for geophysical exploration, through the control of a servo motor drive system, changes the inefficient operation mode of traditional manual cable laying and take-up. The servo motor has precise speed control and positioning capabilities, and can automatically adjust the cable laying and take-up speed according to the actual needs of the exploration operation, matching the speed of the vehicle. This ensures that the cable maintains appropriate tension and laying and take-up speed during vehicle movement. This speed matching function not only improves work efficiency, but also ensures the uniformity and consistency of cable laying, avoiding problems such as uneven speed and unstable tension that are common in manual operation.

[0016] The carefully designed take-up grooves on the drum surface and the consistent pitch of the threaded grooves on the screw surface enable a neat spiral winding of the cable. This threaded guiding mechanism ensures that each turn of cable is neatly arranged according to a predetermined spiral trajectory, maintaining an appropriate spacing between adjacent turns and avoiding problems such as overlap, crossing, or excessive gaps. The neat winding method maximizes the use of the drum's storage space, allowing the same volume of drum to hold more cable lengths, thus improving the equipment's load capacity and operating range. More importantly, this orderly winding method lays a good foundation for subsequent cable unwinding operations, ensuring that the cable can be released smoothly and continuously during the next unwinding, avoiding problems such as jamming, tangling, or discontinuity.

[0017] The left-right movement mechanism of the carriage enables the layered winding function of the cable. After the first layer of cable is wound up, the carriage automatically moves to the appropriate position to start the winding of the second layer. This cycle repeats, achieving orderly stacking of multiple layers of cables. The positioning design of the cable outlet ensures smooth passage of the cable during winding and unwinding, reduces frictional resistance and mechanical wear, and extends the service life of the cable. The entire winding process eliminates non-standard operations caused by human factors, ensuring that each winding meets the same quality standard, thus providing a guarantee for the long-term reliable use of the equipment.

[0018] The reversing mechanism of this device achieves automatic switching of the carriage's movement direction through the coordinated operation of friction rings, friction gears, retaining rings, and elastic stop levers. When the carriage moves to its limit position, the push tube contacts the cross plate and pushes the entire slide system to move, thereby causing the relative position of the friction rings in the friction gears to change, achieving automatic switching of the driving force. This mechanical logic control does not rely on a complex electronic control system, has reliability and environmental adaptability, and can work stably even in outdoor environments with severe electromagnetic interference or drastic temperature and humidity changes. The precise coordination of the gear system achieves accurate synchronization between the drum rotation and the carriage movement, ensuring that the cable winding speed and the carriage movement speed always maintain the best matching relationship. This synchronization is a key technical element for achieving regular winding. The application of the reversing gear enables the control of the bidirectional drive system by a single power source, simplifies the complexity of the entire transmission system, and improves the system's reliability and maintainability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic wire launching and retrieving device for geophysical exploration according to the present invention. Figure 2 This is a schematic diagram of the mounting bracket and servo motor in this invention; Figure 3 In this invention Figure 1 Schematic diagram of the cross-sectional structure; Figure 4 This is a schematic diagram of the slide bar and carriage in this invention; Figure 5 This is a schematic diagram of the structure of the first retaining ring and the first ring frame in this invention; Figure 6 In this invention Figure 5 Schematic diagram of the cross-sectional structure; Figure 7 This is an exploded structural diagram of the first retaining ring and the first annular frame in this invention; Figure 8 This is a schematic diagram of the structure of the second retaining ring and the second ring frame in this invention; Figure 9 In this invention Figure 8 Schematic diagram of the cross-sectional structure; Figure 10 This is an exploded structural diagram of the second retaining ring and the second ring frame in this invention; Figure 11 This is a schematic diagram of the lead screw and rotary drum in this invention; Figure 12 This is a schematic diagram of the lead screw and the first friction block in this invention.

[0020] In the diagram: 11. Mounting bracket; 12. Servo motor; 13. Drive gear; 14. Rotary drum; 15. Cable; 21. First U-shaped rod; 22. Second U-shaped rod; 23. First cross plate; 24. Second cross plate; 25. Slide rod; 26. Thin rod; 27. Lead screw; 28. First friction block; 29. ​​Second friction block; 210. Cable take-up groove; 211. Slide carriage; 212. Push tube; 213. Cable outlet hole; 214. First 215. Reversing gear; 216. First friction gear; 217. First friction ring; 218. First retaining ring; 219. First elastic stop lever; 220. First helical gear; 221. Reversing gear; 222. Second helical gear; 223. Second reversing gear; 224. Second friction gear; 225. Second friction ring; 226. Second retaining ring; 227. Second ring frame; 228. Second elastic stop lever. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0024] Please see Figures 1-12An automatic cable reeling and laying device for geophysical exploration includes a mounting frame 11, a servo motor 12 is provided at the bottom of the mounting frame 11, a drive gear 13 is connected to the output end of the servo motor 12, a rotating drum 14 is rotatably connected between the mounting frames 11, and a cable 15 is coiled on the surface of the rotating drum 14.It also includes an automatic wire take-up and unwinding mechanism, which includes a first U-shaped rod 21. The first U-shaped rod 21 is provided on one side of the mounting frame 11, and a second U-shaped rod 22 is provided on the other side. A first cross plate 23 is slidably connected to the first U-shaped rod 21, and a second cross plate 24 is slidably connected to the second U-shaped rod 22. Two sets of sliding rods 25 and two sets of thin rods 26 are provided between the first cross plate 23 and the second cross plate 24. A lead screw 27 is slidably connected to the outer surface of the two sets of thin rods 26. The lead screw 27 is located between the mounting frames 11 and is rotatably connected to the mounting frame 11. One end of the lead screw 27 rotatably passes through the mounting frame 11 and is provided with a first friction block 28. The other end rotatably passes through the mounting frame 11 and is provided with a second friction block 29. The surface of the rotating drum 14 is opened with The drum 14 has a take-up groove 210, the pitch of which is the same as the pitch of the thread groove on the surface of the lead screw. The cable 15 is adapted to the take-up groove 210. A slide 211 is fitted on the outer surface of the drum 14. The upper and lower ends of the slide 211 are threaded to two sets of lead screws 27. Push tubes 212 are provided on both sides of the slide 211. The push tubes 212 are slidably connected to the slide rod 25. The surface of the slide 211 has a cable outlet hole 213 adapted to the cable 15. A first reverse gear 214 is fixedly fitted on one end of the drum 14. The first reverse gear 214 has first friction gears 215 meshing on its upper and lower sides. The lower first friction gear 215 meshes with the drive gear 13. A first friction ring 216 is slidably connected to the outer surface of the first friction block 28. 6 abuts against the inner wall of the first friction gear 215. The other side of the first friction ring 216 is provided with a first retaining ring 217. The outer surface of the first friction ring 216 is fitted with a first annular frame 218. One end of the first annular frame 218 is fixedly connected to the side wall of the mounting frame 11. Multiple sets of first elastic stops 219 are provided inside the first annular frame 218. The side wall of the first retaining ring 217 abuts against the first elastic stops 219. The side wall of the first retaining ring 217 is locked and fixed to the side wall of the first cross plate 23. The other end of the rotating drum 14 is fixedly fitted with a first helical gear 220. A reversing gear 221 is rotatably connected to the second U-shaped rod 22. A second helical gear 222 is rotatably connected to the surface of the rotating drum 14. The reversing gear 221 is respectively connected to the first helical gear 220 and the second helical gear 222. 22 meshing, a second reversing gear 223 is fixedly sleeved on the outer surface of the second helical gear 222, and second friction gears 224 mesh on the upper and lower sides of the second reversing gear 223. A second friction ring 225 is slidably connected to the outer surface of the second friction block 29, and the second friction ring 225 abuts against the inner side wall of the second friction gear 224. A second retaining ring 226 is provided on the other side of the second friction ring 225. A second annular frame 227 is sleeved on the outer surface of the second friction ring 225. One end of the second annular frame 227 is fixedly connected to the side wall of the mounting frame 11. Multiple sets of second elastic stops 228 are provided inside the second annular frame 227. The side wall of the second retaining ring 226 abuts against the second elastic stops 228, and the side wall of the second retaining ring 226 is engaged and fixedly engaged with the side wall of the second cross plate 24.

[0025] This device can automatically release and retract the cable 15. The automatic release process is the reverse of the automatic retraction process. The entire device is installed on the vehicle. The servo motor 12 can match the vehicle speed to facilitate the release and retraction of the cable 15. It can also rotate in both directions to adapt to the release and retraction work. The rotating drum 14 rotates clockwise for the retraction work and counterclockwise for the release work. The automatic retraction process is mainly described below. The release process only requires the servo motor 12 to rotate in the opposite direction. The servo motor 12 is started, which drives the drive gear 13 to rotate clockwise. The drive gear 13 drives the lower first friction gear 215 to rotate counterclockwise. The first friction gear 215 then drives the first reverse gear 214 to rotate clockwise. The first reverse gear 214 drives the upper first friction gear 215 to rotate counterclockwise. The clockwise rotation of the first reverse gear 214 drives the rotating drum 14 to rotate synchronously, performing the winding action. The cable 15 is wound up to the outer surface of the rotating drum 14 through the outlet hole 213, and the cable 15 matches the winding groove 210 on the outer surface of the rotating drum 14, so the orderly and neat winding of the cable 15 is achieved. However, the cable 15 is wound up in more than one layer, so the slide 211 needs to move left and right along the slide bar 25 to wind up the cable 15 layer by layer. In the initial state, the carriage 211 is located on one side of the first cross plate 23, and the push tubes 212 on both sides of the carriage 211 abut against the side wall of the first cross plate 23, pushing the first cross plate 23 out. At this time, the first retaining ring 217 abuts against the outer side of the first elastic stop 219, and the first elastic stop 219 provides a leftward thrust to the first retaining ring 217. The first retaining ring 217 drives the first friction ring 216 to disengage from the inner side wall of the first friction gear 215. Correspondingly, the second retaining ring 226 abuts against the inner side of the second elastic stop 228, and the second elastic stop 228 also provides a leftward thrust to the second retaining ring 226. The second friction ring 225 is located inside the second friction gear 224 and against the inner side wall of the second friction gear 224. When the two friction rings come into contact, a large friction force is generated. Therefore, the rotation of the lead screw 27 is achieved by the action of the second friction gear 224. That is, when the slide 211 slides to the right, a large friction force is generated because the second friction ring 225 and the second friction gear 224 come into contact. The first friction ring 216 and the first friction gear 215 do not come into contact and therefore do not generate friction. So the slide 211 is driven by the right-side second friction gear 224. When the slide 211 moves to the left, a large friction force is generated because the first friction ring 216 and the first friction gear 215 come into contact. The second friction ring 225 and the second friction gear 224 do not come into contact and therefore do not generate friction. So the slide 211 is driven by the left-side first friction gear 215. At this time, the carriage 211 needs to slide to the right to reel in the line. The drum 14 rotates clockwise under the drive of the servo motor 12. The drum 14 drives the first helical gear 220 to rotate clockwise. The first helical gear 220 drives the reversing gear 221 to rotate. Under the action of the reversing gear 221, the second helical gear 222 rotates in the opposite direction to the first helical gear 220. The second helical gear 222 drives the second reverse gear 223 sleeved on the outside to rotate synchronously. The second reverse gear 223 then drives the second friction gears 224 on the upper and lower sides to rotate synchronously in the opposite direction. Therefore, the inner wall of the second friction gear 224 abuts against the second friction ring 225. Under the action of friction, the second friction ring 225 drives its inner side to slide. The second friction block 29 rotates synchronously, which in turn drives the two sets of lead screws 27 to rotate synchronously. The lead screws 27 drive the slide 211 to move to the right to perform the line winding operation. When the push tubes 212 on both sides of the slide 211 contact the side wall of the second cross plate 24, they push the slide rod 25 and the first cross plates 23 and second cross plates 24 on both sides to move synchronously to the right. At the same time, they drive the first retaining ring 217 and the second retaining ring 226 to move. The first retaining ring 217 and the second retaining ring 226 then drive the first friction ring 216 and the second friction ring 225 to move. When half of the first friction ring 216 and the second friction ring 225 are inside the first friction gear 215 and the second friction gear 224, the frictional force generated is the same, but this At this point, the first retaining ring 217 has moved to the inside of the first elastic stop 219, and the first elastic stop 219 exerts a rightward pushing force on the first retaining ring 217. The second retaining ring 226 has moved to the outside of the second elastic stop 228, and the second elastic stop 228 also exerts a rightward pushing force on the second retaining ring 226. At this time, the slide bar 25 can be pushed to continue moving to the right until the first friction ring 216 is fully engaged with the first friction gear 215 and the second friction ring 225 is completely disengaged from the second friction gear 224. At this time, the lead screw 27 begins to rotate under the influence of the first friction gear 215, and the slide 211 begins to move to the left to continue the next round of line winding until the push tube 212 contacts the side wall of the first cross plate 23. Pushing slide bar 25, together with first cross plate 23 and second cross plate 24, to move to the left, thereby driving first retaining ring 217 and second retaining ring 226, together with first friction ring 216 and second friction ring 225, to move synchronously until half of first friction ring 216 and second friction ring 225 are inside first friction gear 215 and second friction gear 224. First retaining ring 217 and second retaining ring 226 then switch to the other side of first elastic stop bar 219 and second elastic stop bar 228, driving slide bar 25 to continue to move to the left until first friction ring 216 is completely disengaged from first friction gear 215 and second friction ring 225 is completely embedded in second friction gear 224, realizing the reversal of the next round of slide 211.

[0026] In all the solutions mentioned above, for connections between two components, welding, bolt and nut connection, bolt or screw connection, or other known connection methods can be selected according to the actual situation. They will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here. Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies and will not be elaborated upon in this invention. Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, so their electrical connection relationships and specific circuit structures will not be elaborated here.

Claims

1. An automatic cable laying and retrieval device for geophysical exploration, comprising a mounting frame (11), characterized in that: The mounting bracket (11) is equipped with a servo motor (12) at its bottom. The output end of the servo motor (12) is connected to a drive gear (13). A rotating drum (14) is rotatably connected between the mounting brackets (11). A cable (15) is wound around the surface of the rotating drum (14). The mounting bracket (11) also includes an automatic cable winding mechanism. The automatic cable winding mechanism includes a first U-shaped rod (21). The mounting bracket (11) is equipped with a first U-shaped rod (21) on one side and a second U-shaped rod (22) on the other side. A first cross plate (23) is slidably connected to the first U-shaped rod (21). A second cross plate (24) is slidably connected to the second U-shaped rod (22). Two sets of sliding rods (25) and two sets of thin rods (26) are provided between the first cross plate (23) and the second cross plate (24).

2. The automatic wire-laying and retrieval device for geophysical exploration according to claim 1, characterized in that: Two sets of thin rods (26) are slidably connected to a lead screw (27) on their outer surfaces. The lead screw (27) is located between the mounting brackets (11) and is rotatably connected to the mounting brackets (11). One end of the lead screw (27) is provided with a first friction block (28), and the other end is provided with a second friction block (29). The surface of the rotating drum (14) is provided with a take-up groove (210). The pitch of the take-up groove (210) is consistent with the pitch of the thread groove on the surface of the lead screw. The cable (15) is adapted to the take-up groove (210).

3. The automatic wire-laying and retrieval device for geophysical exploration according to claim 2, characterized in that: The outer surface of the rotating drum (14) is fitted with a slide (211). The upper and lower ends of the slide (211) are threadedly connected to two sets of lead screws (27). The slide (211) is provided with push tubes (212) on both the left and right sides. The push tubes (212) are slidably connected to the slide rod (25). The surface of the slide (211) is provided with a wire outlet hole (213) that is compatible with the cable (15).

4. The automatic wire-laying and retrieval device for geophysical exploration according to claim 3, characterized in that: The first reverse gear (214) is fixedly sleeved on one end of the rotating drum (14). The first friction gear (215) meshes with the upper and lower sides of the first reverse gear (214). The lower side of the first friction gear (215) meshes with the drive gear (13).

5. The automatic wire-laying and retrieval device for geophysical exploration according to claim 4, characterized in that: The outer surface of the first friction block (28) is slidably connected to a first friction ring (216), the first friction ring (216) abuts against the inner wall of the first friction gear (215), and a first retaining ring (217) is provided on the other side of the first friction ring (216).

6. The automatic wire-laying and retrieval device for geophysical exploration according to claim 5, characterized in that: The outer surface of the first friction ring (216) is fitted with a first ring frame (218). One end of the first ring frame (218) is fixedly connected to the side wall of the mounting frame (11). The first ring frame (218) is provided with multiple sets of first elastic stops (219). The side wall of the first retaining ring (217) abuts against the first elastic stops (219). The side wall of the first retaining ring (217) is engaged and fixed with the side wall of the first cross plate (23).

7. The automatic wire-laying and retrieval device for geophysical exploration according to claim 6, characterized in that: The other end of the rotating drum (14) is fixedly fitted with a first helical gear (220), and a reversing gear (221) is rotatably connected to the second U-shaped rod (22). The surface of the rotating drum (14) is rotatably connected with a second helical gear (222), and the reversing gear (221) meshes with the first helical gear (220) and the second helical gear (222) respectively.

8. The automatic wire-laying and retrieval device for geophysical exploration according to claim 7, characterized in that: The second helical gear (222) is fixedly sleeved with a second reverse gear (223), and the second reverse gear (223) is meshed with a second friction gear (224) on its upper and lower sides.

9. The automatic wire-laying and retrieval device for geophysical exploration according to claim 8, characterized in that: The second friction block (29) has a second friction ring (225) slidably connected to its outer surface. The second friction ring (225) abuts against the inner wall of the second friction gear (224). The other side of the second friction ring (225) is provided with a second retaining ring (226).

10. An automatic wire-laying and retrieval device for geophysical exploration according to claim 9, characterized in that: The outer surface of the second friction ring (225) is fitted with a second ring frame (227). One end of the second ring frame (227) is fixedly connected to the side wall of the mounting frame (11). The second ring frame (227) is provided with multiple sets of second elastic stops (228). The side wall of the second retaining ring (226) abuts against the second elastic stops (228). The side wall of the second retaining ring (226) is engaged and fixed with the side wall of the second cross plate (24).

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