Automatic control device for hydraulic logging winch drum
By designing an automated control device for contacting the friction plate and the friction cylinder on the hydraulic logging winch drum, the problem of wire rope breakage caused by excessive drum rotation speed is solved, and the rapid braking and safe braking effects are achieved.
Patent Information
- Application Number
- CN202510481704.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2025-07-11
AI Technical Summary
When the roller of the hydraulic logging winch rotates fast, it is easy to cause the wire rope to break, posing a safety hazard.
An automatic control device for hydraulic logging winch drum is designed, including a base, a fixing plate, a shaft, a roller body, a friction cylinder, a brake unit and other components. The brake effect is achieved through the contact between the friction plate and the friction cylinder, and the stability plate and the limit plate are combined to enhance the brake effect.
It effectively avoids the breakage of the wire rope when the drum body is too fast, improves safety, and ensures the stable operation of the equipment.
Smart Images
Figure CN120288668A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of logging winches, and in particular to an automatic control device for a hydraulic logging winch drum. Background Technique
[0002] A hydraulic logging winch is a professional device used for oil and gas logging operations. It is mainly used to lower and lift logging instruments (such as cables, sensors, probes, etc.) into the wellbore for data collection. It uses a hydraulic system as the power source, has high load capacity, stability and reliability, and is suitable for various complex downhole environments.
[0003] When using a hydraulic logging winch, a drum for winding the wire rope is installed on the winch. When winding and unwinding the wire rope, the rotation of the drum is controlled by a hydraulic motor. An output shaft is installed on the drum, and a speed sensor is arranged at the shaft end of the output shaft to facilitate monitoring of the rotation speed of the drum and the speed of the hydraulic motor for the drum. When the speed of the drum is fast and the winch device is not stopped in time, it may cause the wire rope to fall off or break, resulting in a safety accident, and the safety is not high. Summary of the Invention
[0004] In view of the deficiencies of the prior art, the present invention provides an automatic control device for a hydraulic logging winch drum, which solves the problem that the rotation speed of the winch is fast and the wire rope is easily broken.
[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic control device for a hydraulic logging winch drum, including a base. Two fixing plates are fixedly connected to the upper side of the base. A rotating shaft is arranged between the two fixing plates. A drum main body is fixedly connected to the outer side of the rotating shaft. A hydraulic motor is fixedly connected to the outer side of one of the fixing plates. Mounting plates are fixedly connected to both the left and right sides of the base. A speed sensor and a friction cylinder are fixedly connected to the outer side of the left end of the rotating shaft. Rotating rings are fixedly connected to the outer sides of both the left and right ends of the friction cylinder. Multiple stabilizing blocks are fixedly connected to the outer side of the rotating ring. A braking unit for braking the drum main body is arranged on the upper side of the base. The braking unit includes two mounting frames. Both mounting frames are arranged on the upper side of the base. A contact component that contacts the friction cylinder is arranged on the outer side of the mounting frame. A mounting block is fixedly connected to the lower side of the mounting frame.
[0006] Preferably, the contact component includes a first moving plate. The first moving plate is arranged on the front and rear sides of the mounting frame. One side of the first moving plates on the front and rear sides passes through the outer side of the mounting frame and is fixedly connected to a fixed box. A moving piece is fixedly connected to the side of the fixed box close to the friction cylinder. A friction piece is arranged on the side of the moving piece close to the friction cylinder. Side plates are fixedly connected to the other sides of the first moving plates on the front and rear sides.
[0007] Preferably, connection blocks are fixedly connected to the outer sides of the side plates on both the front and rear sides. A control rod is rotatably connected to the upper side of the mounting frame. The upper end of the control rod is fixedly connected to a turntable. Two top plates are fixedly connected to the outer side of the turntable. Two inclined plates three are rotatably connected to the upper sides of the two top plates. The inclined plate three is rotatably connected to the connection block. A gear is fixedly connected to the outer side of the control rod. A chute is formed on the upper side of the mounting frame. A slider is slidably connected to the inner side of the chute. An electric push rod is fixedly connected between the slider and the mounting frame. A toothed plate meshing with the gear is fixedly connected to the upper side of the slider.
[0008] Preferably, a moving rod is fixedly connected to the outer side of the friction plate. One end of the moving rod passes through the moving piece and is located inside the fixed box. A pressing plate is fixedly connected to one end of the moving rod. A spring is fixedly connected between the pressing plate and the fixed box. A guide rail is fixedly connected to the inner side of the fixed box. Two guide blocks are slidably connected to the outer side of the guide rail. The two guide blocks are symmetrically distributed. Square plates are fixedly connected to the outer sides of the two guide blocks. A stabilizing plate is fixedly connected to the side of the square plate close to the rotating ring. Inclined plates one are rotatably connected to the outer sides of the two square plates. A rotating block one is rotatably connected to the outer side of the inclined plate one. A side block is fixedly connected to the outer side of the rotating block one. A telescopic rod is fixedly connected between the side block and the fixed box. Rotating blocks two are fixedly connected to the outer sides of the two side blocks. An inclined plate two is rotatably connected to the outer side of the rotating block two. A rotating block three is rotatably connected to the outer side of the inclined plate two. The rotating block three is fixedly connected to the pressing plate.
[0009] Preferably, the stabilizing plate is slidably connected to the fixed box, and the moving rod is slidably connected to both the moving piece and the fixed box.
[0010] Preferably, limit discs are fixedly connected to both the left and right sides of the drum body. A fixed ring is fixedly connected to the outer side of the limit disc. A plurality of card slots are formed on the outer side of the fixed ring. A strengthening component is arranged on the side of the contact component close to the limit disc. The strengthening component includes two stabilizing rods. Both of the two stabilizing rods are arranged on the outer side of the mounting frame. A moving plate two is fixedly connected to one end of the two stabilizing rods close to the limit disc. An arc-shaped plate is fixedly connected to one side of the moving plate two. A contact plate and a clamping block are fixedly connected to the outer side of the arc-shaped plate. A rotating block four is fixedly connected to the other side of the moving plate two. A control plate is rotatably connected to the outer side of the rotating block four. A connecting rod is rotatably connected to the outer side of the moving plate one. The connecting rod is fixedly connected to the control plate.
[0011] Preferably, the number of the contact plates is two, the number of the clamping blocks is multiple, the clamping blocks are adapted to the card slots, the contact plate is arranged in an arc-shaped structure, and the stabilizing rod is slidably connected to the mounting frame.
[0012] Beneficial effects The present invention provides a hydraulic well logging winch drum automatic control device. Compared with the prior art, it has the following beneficial effects: (1) For this hydraulic well logging winch drum automatic control device, by providing a base, a fixing plate, a rotating shaft, a drum body, a friction cylinder, a mounting frame, a first moving rod, a friction plate, a moving piece and a control rod, when the speed of the drum body is fast, it is convenient for the friction plate to contact the friction cylinder, so as to quickly brake the drum body, avoid the steel wire rope on the drum body from breaking and causing accidents.
[0013] (2) For this hydraulic well logging winch drum automatic control device, by providing a fixed box, a moving rod, a spring, a pressing plate, a guide rail, a guide block and a stabilizing plate, when the friction plate contacts the friction cylinder, it is convenient to control the two stabilizing plates to move away from each other, which is convenient for the stabilizing plate to cooperate with the stabilizing block, and is convenient to brake the drum body again to increase the braking speed.
[0014] (3) For this hydraulic well logging winch drum automatic control device, by providing a contact plate, a clamping block, a control plate, a stabilizing rod and a second moving plate, when the contact piece brakes the drum body, it is convenient for the contact plate and the clamping block to limit the position of the limiting disc on the drum body again, which is convenient for the braking operation. Description of the Drawings
[0015] Figure 1 is the overall three-dimensional structure diagram of the present invention; Figure 2 is the partial three-dimensional structure diagram of the drum body in the present invention; Figure 3 is the three-dimensional structure diagram of the braking unit in the present invention; Figure 4 is Figure 3 the enlarged view of part A in; Figure 5 is the partial three-dimensional structure diagram of the contact component in the present invention; Figure 6 is the partial sectional three-dimensional structure diagram of the contact component in the present invention; Figure 7 is Figure 6 the enlarged view of part B in; Figure 8 is the sectional three-dimensional structure diagram of the contact part from another perspective in the present invention; Figure 9 is the three-dimensional structure diagram of the arc plate in the present invention.
[0016] In the figure: 1, base; 2, mounting plate; 3, fixing plate; 4, rotating shaft; 5, hydraulic motor; 6, speed sensor; 7, drum body; 8, brake unit; 9, limit disc; 10, fixing ring; 11, card slot; 12, friction cylinder; 13, rotating ring; 14, stabilizing block; 801, mounting frame; 802, mounting block; 803, contact assembly; 804, strengthening assembly; 8031, moving piece; 8032, friction piece; 8033, fixing box; 8034, first moving plate; 8035, guide rail; 8036, guide block; 8037, square plate; 8038, stabilizing plate; 8039, first inclined plate; 80310, first rotating block; 80311, side block; 80312, telescopic rod; 80313, second rotating block; 80314, second inclined plate; 80315, moving rod; 80316, abutting plate; 80317, spring; 80318, side plate; 80319, control rod; 80320, turntable; 80321, top plate; 80322, third inclined plate; 80323, connecting block; 80324, gear; 80325, toothed plate; 80326, chute; 80327, slider; 80328, electric push rod; 80329, third rotating block; 8041, stabilizing rod; 8042, second moving plate; 8043, arc plate; 8044, fourth rotating block; 8045, control board; 8046, connecting rod; 8047, contact board; 8048, clamping block. Specific implementation manner
[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0018] Embodiment 1 Please refer to Figure 1 - Figure 7, the present invention provides a technical solution: a hydraulic logging winch drum automatic control device, including a base 1, two fixing plates 3 are fixedly connected to the upper side of the base 1, a rotating shaft 4 is arranged between the two fixing plates 3, a drum main body 7 is fixedly connected to the outer side of the rotating shaft 4, a hydraulic motor 5 is fixedly connected to the outer side of one fixing plate 3, mounting plates 2 are fixedly connected to both the left and right sides of the base 1, a speed sensor 6 and a friction cylinder 12 are fixedly connected to the outer side of the left end of the rotating shaft 4, rotating rings 13 are fixedly connected to both the left and right ends of the friction cylinder 12, a plurality of stabilizing blocks 14 are fixedly connected to the outer side of the rotating ring 13, a braking unit 8 for braking the drum main body 7 is arranged on the upper side of the base 1, the braking unit 8 includes two mounting frames 801, both the two mounting frames 801 are arranged on the upper side of the base 1, a contact component 803 in contact with the friction cylinder 12 is arranged on the outer side of the mounting frame 801, a mounting block 802 is fixedly connected to the lower side of the mounting frame 801, a bolt is arranged between the mounting block 802 and the mounting frame 801, which is convenient for disassembling the mounting frame 801 and facilitating later maintenance. The speed sensor 6 monitors the rotation speed of the drum main body 7. When the monitored speed is abnormal (too fast), the drum main body 7 is quickly braked through the braking unit 8 to avoid accidents.
[0019] The contact component 803 includes a first moving plate 8034, the first moving plate 8034 is arranged on the front and rear sides of the mounting frame 801, one side of the first moving plates 8034 on the front and rear sides passes through the outer side of the mounting frame 801 and is fixedly connected to a fixed box 8033, a moving piece 8031 is fixedly connected to the side of the fixed box 8033 close to the friction cylinder 12, a friction piece 8032 is arranged on the side of the moving piece 8031 close to the friction cylinder 12, the other sides of the first moving plates 8034 on the front and rear sides are fixedly connected to side plates 80318, connecting blocks 80323 are fixedly connected to the outer sides of the side plates 80318 on the front and rear sides, a control rod 80319 is rotatably connected to the upper side of the mounting frame 801, a turntable 80320 is fixedly connected to the upper end of the control rod 80319, two top plates 80321 are fixedly connected to the outer side of the turntable 80320, a third inclined plate 80322 is rotatably connected to the upper sides of the two top plates 80321, the third inclined plate 80322 is rotatably connected to the connecting block 80323, a gear 80324 is fixedly connected to the outer side of the control rod 80319, a chute 80326 is opened on the upper side of the mounting frame 801, a slider 80327 is slidably connected to the inner side of the chute 80326, an electric push rod 80328 is fixedly connected between the slider 80327 and the mounting frame 801, and a toothed plate 80325 meshed with the gear 80324 is fixedly connected to the upper side of the slider 80327.
[0020] When the speed is abnormal, control the electric push rod 80328 to drive the slider 80327 to move. The slider 80327 drives the toothed plate 80325 to move. The toothed plate 80325 drives the gear 80324 to rotate. The gear 80324 drives the control rod 80319 to rotate the rod. The control rod 80319 drives the turntable 80320 to rotate. The turntable 80320 drives the top plate 80321 to rotate. The top plate 80321 drives the inclined plate three 80322 to rotate. Due to the parallel structure of the two inclined plates three 80322, the inclined plate three 80322 drives the side plates 80318 on the connecting block 80323 to move. The front and rear side plates 80318 approach each other. The side plate 80318 drives the moving plate one 8034 to move. The moving plate one 8034 drives the fixed box 8033 to move. The fixed box 8033 drives the moving piece 8031 to move. The moving piece 8031 drives the friction piece 8032 to move, making the front and rear friction pieces 8032 approach the friction cylinder 12 and bringing the friction piece 8032 into contact with the friction cylinder 12. Under the action of friction, the rotating shaft 4 on the friction cylinder 12 is braked, facilitating the rapid braking of the drum body 7 and avoiding safety accidents.
[0021] A moving rod 80315 is fixedly connected to the outer side of the friction plate 8032. One end of the moving rod 80315 passes through the moving piece 8031 and is located inside the fixed box 8033. A pressing plate 80316 is fixedly connected to one end of the moving rod 80315. A spring 80317 is fixedly connected between the pressing plate 80316 and the fixed box 8033. A guide rail 8035 is fixedly connected to the inner side of the fixed box 8033. Two guide blocks 8036 are slidably connected to the outer side of the guide rail 8035. The two guide blocks 8036 are symmetrically distributed. Square plates 8037 are fixedly connected to the outer sides of the two guide blocks 8036. A stabilizing plate 8038 is fixedly connected to the side of the square plate 8037 close to the rotating ring 13. One-way inclined plates 8039 are rotatably connected to the outer sides of the two square plates 8037. A rotating block one 80310 is rotatably connected to the outer side of the one-way inclined plate 8039. A side block 80311 is fixedly connected to the outer side of the rotating block one 80310. A telescopic rod 80312 is fixedly connected between the side block 80311 and the fixed box 8033. Rotating blocks two 80313 are fixedly connected to the outer sides of the two side blocks 80311. A two-way inclined plate 80314 is rotatably connected to the outer side of the rotating block two 80313. A rotating block three 80329 is rotatably connected to the outer side of the two-way inclined plate 80314. The rotating block three 80329 is fixedly connected to the pressing plate 80316. The stabilizing plate 8038 is slidably connected to the fixed box 8033. The moving rod 80315 is slidably connected to both the moving piece 8031 and the fixed box 8033. When the friction plate 8032 contacts the friction cylinder 12, the friction plate 8032 drives the moving rod 80315 to move. The moving rod 80315 drives the pressing plate 80316 to move. The pressing plate 80316 drives the two-way inclined plate 80314 to rotate. Due to the symmetric arrangement of the two two-way inclined plates 80314, the two-way inclined plate 80314 drives the side block 80311 to move. The two side blocks 80311 approach each other. The side block 80311 drives the one-way inclined plate 8039 to rotate. The two one-way inclined plates 8039 are symmetrically structured. The one-way inclined plate 8039 drives the square plate 8037 to move, causing the stabilizing plates 8038 on the two square plates 8037 to move towards the stabilizing blocks 14, so that the stabilizing plate 8038 moves between the two stabilizing blocks 14, facilitating the braking operation of the drum main body 7 again and enabling quick braking.
[0022] Embodiment 2 As Figure 8 、 Figure 9As shown in the figure, limiting discs 9 are fixedly connected to both the left and right sides of the drum body 7. A fixing ring 10 is fixedly connected to the outer side of the limiting disc 9. A plurality of card slots 11 are provided on the outer side of the fixing ring 10. A reinforcing component 804 is arranged on the side of the contact component 803 close to the limiting disc 9. The reinforcing component 804 includes two stabilizing rods 8041. Both of the two stabilizing rods 8041 are arranged on the outer side of the mounting frame 801. A second moving plate 8042 is fixedly connected to one end of the two stabilizing rods 8041 close to the limiting disc 9. An arc-shaped plate 8043 is fixedly connected to one side of the second moving plate 8042. A contact plate 8047 and a clamping block 8048 are fixedly connected to the outer side of the arc-shaped plate 8043. A fourth rotating block 8044 is fixedly connected to the other side of the second moving plate 8042. A control plate 8045 is rotatably connected to the outer side of the fourth rotating block 8044. A connecting rod 8046 is rotatably connected to the outer side of the first moving plate 8034. The connecting rod 8046 is fixedly connected to the control plate 8045. The number of the contact plates 8047 is two, and the number of the clamping blocks 8048 is multiple. The clamping blocks 8048 are adapted to the card slots 11. The contact plate 8047 is arranged in an arc-shaped structure. The stabilizing rod 8041 is slidably connected to the mounting frame 801. When the friction plate 8032 approaches the friction cylinder 12, the first moving plate 8034 moves. The first moving plate 8034 drives the connecting rod 8046 to move. The connecting rod 8046 drives the control plate 8045 to rotate. The control plate 8045 drives the arc-shaped plate 8043 on the second moving plate 8042 to approach the fixing ring 10, so that the second moving plate 8042 drives the contact plate 8047 on the arc-shaped plate 8043 to move. At this time, the drum body 7 drives the limiting disc 9 to rotate, and the limiting disc 9 drives the fixing ring 10 to rotate, so that the contact plate 8047 contacts the fixing ring 10. At the same time, the clamping block 8048 is inserted into the inner side of the card slot 11, which is convenient for assisting the braking of the drum body 7 and increasing the braking effect.
[0023] Working principle: During use, the staff first start the hydraulic motor 5 to drive the drum body 7 on the rotating shaft 4 to rotate. When the rotation speed of the drum body 7 is too fast, the electric push rod 80328 is controlled to drive the slider 80327 to move. Under the action of the toothed plate 80325, gear 80324, control rod 80319, turntable 80320, top plate 80321, inclined plate three 80322 and side plate 80318, the friction plates 8032 on the front and rear sides are brought closer to the friction cylinder 12, which facilitates the initial braking of the drum body 7. At the same time, the friction plates 8032 drive the abutting plate 80316, inclined plate two 80314, side block 80311, inclined plate one 8039, guide block 8036 and square plate 8037, and the stabilizing plates 8038 on both sides are controlled to move away from each other, which facilitates the adaptation of the stabilizing plates 8038 to the stabilizing blocks 14 and facilitates the secondary braking of the drum body 7. At the same time, the moving plate one 8034 drives the control plate 8045 to rotate, so that the arc plate 8043 on the moving plate two 8042 moves. Through the contact plate 8047, clamping block 8048, fixed ring 10 and card slot 11, the drum body 7 is quickly braked to avoid the fracture of the steel wire rope.
[0024] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.
[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An automatic control device for a hydraulic logging winch drum, comprising a base (1), two fixing plates (3) are fixedly connected to the upper side of the base (1), a rotating shaft (4) is arranged between the two fixing plates (3), a drum main body (7) is fixedly connected to the outer side of the rotating shaft (4), a hydraulic motor (5) is fixedly connected to the outer side of one of the fixing plates (3), mounting plates (2) are fixedly connected to both the left and right sides of the base (1), and it is characterized in that: A speed sensor (6) and a friction cylinder (12) are fixedly connected to the outer side of the left end of the rotating shaft (4). Rotating rings (13) are fixedly connected to the outer sides of the left and right ends of the friction cylinder (12). A plurality of stabilizing blocks (14) are fixedly connected to the outer sides of the rotating rings (13). A braking unit (8) for braking the roller main body (7) is arranged on the upper side of the base (1). The braking unit (8) includes two mounting frames (801). Both of the two mounting frames (801) are arranged on the upper side of the base (1). A contact assembly (803) that contacts the friction cylinder (12) is arranged on the outer side of the mounting frame (801). A mounting block (802) is fixedly connected to the lower side of the mounting frame (801).
2. The automatic control device for the hydraulic well logging winch drum according to claim 1, wherein: The contact assembly (803) includes a first moving plate (8034). The first moving plate (8034) is arranged on the front and rear sides of the mounting frame (801). One side of the first moving plates (8034) on the front and rear sides penetrates through the outer side of the mounting frame (801) and is fixedly connected to a fixed box (8033). A moving piece (8031) is fixedly connected to the side of the fixed box (8033) close to the friction cylinder (12). A friction piece (8032) is arranged on the side of the moving piece (8031) close to the friction cylinder (12). Side plates (80318) are fixedly connected to the other sides of the first moving plates (8034) on the front and rear sides.
3. The automatic control device for the hydraulic logging winch drum according to claim 2, characterized in that: Connecting blocks (80323) are fixedly connected to the outer sides of the side plates (80318) on the front and rear sides. A control rod (80319) is rotatably connected to the upper side of the mounting frame (801). A turntable (80320) is fixedly connected to the upper end of the control rod (80319). Two top plates (80321) are fixedly connected to the outer side of the turntable (80320). An inclined plate three (80322) is rotatably connected to the upper sides of the two top plates (80321). The inclined plate three (80322) is rotatably connected to the connecting block (80323). A gear (80324) is fixedly connected to the outer side of the control rod (80319). A chute (80326) is formed in the upper side of the mounting frame (801). A slider (80327) is slidably connected to the inner side of the chute (80326). An electric push rod (80328) is fixedly connected between the slider (80327) and the mounting frame (801). A rack (80325) that meshes with the gear (80324) is fixedly connected to the upper side of the slider (80327).
4. The automated control device for the hydraulic logging winch drum according to claim 2, characterized in that: A moving rod (80315) is fixedly connected to the outer side of the friction plate (8032). One end of the moving rod (80315) passes through the moving plate (8031) and is located inside the fixed box (8033). A pressing plate (80316) is fixedly connected to one end of the moving rod (80315). A spring (80317) is fixedly connected between the pressing plate (80316) and the fixed box (8033). A guide rail (8035) is fixedly connected to the inside of the fixed box (8033). Two guide blocks (8036) are slidably connected to the outer side of the guide rail (8035). The two guide blocks (8036) are symmetrically distributed. Square plates (8037) are fixedly connected to the outer sides of the two guide blocks (8036). A stabilizing plate (8038) is fixedly connected to the side of the square plate (8037) close to the rotating ring (13). Oblique plates one (8039) are rotatably connected to the outer sides of the two square plates (8037). A rotating block one (80310) is rotatably connected to the outer side of the oblique plate one (8039). A side block (80311) is fixedly connected to the outer side of the rotating block one (80310). A telescopic rod (80312) is fixedly connected between the side block (80311) and the fixed box (8033). Rotating blocks two (80313) are fixedly connected to the outer sides of the two side blocks (80311). An oblique plate two (80314) is rotatably connected to the outer side of the rotating block two (80313). A rotating block three (80329) is rotatably connected to the outer side of the oblique plate two (80314). The rotating block three (80329) is fixedly connected to the pressing plate (80316).
5. An automatic control device for a hydraulic logging winch drum according to claim 4, characterized in that: The stabilizing plate (8038) is slidably connected to the fixed box (8033), and the moving rod (80315) is slidably connected to both the moving plate (8031) and the fixed box (8033).
6. The automatic control device for the hydraulic logging winch drum according to claim 2, wherein: Limit discs (9) are fixedly connected to both the left and right sides of the roller body (7). A fixed ring (10) is fixedly connected to the outer side of the limit disc (9). A plurality of card slots (11) are formed in the outer side of the fixed ring (10). A strengthening component (804) is arranged on the side of the contact component (803) close to the limit disc (9). The strengthening component (804) includes two stabilizing rods (8041). The two stabilizing rods (8041) are both arranged on the outer side of the mounting frame (801). A moving plate two (8042) is fixedly connected to one end of the two stabilizing rods (8041) close to the limit disc (9). An arc plate (8043) is fixedly connected to one side of the moving plate two (8042). A contact plate (8047) and a clamping block (8048) are fixedly connected to the outer side of the arc plate (8043). A rotating block four (8044) is fixedly connected to the other side of the moving plate two (8042). A control plate (8045) is rotatably connected to the outer side of the rotating block four (8044). A connecting rod (8046) is rotatably connected to the outer side of the moving plate one (8034). The connecting rod (8046) is fixedly connected to the control plate (8045).
7. An automatic control device for a hydraulic logging winch drum according to claim 6, characterized in that: The number of the contact plates (8047) is set to two, the number of the clamping blocks (8048) is set to a plurality, the clamping blocks (8048) are adapted to the clamping grooves (11), the contact plates (8047) are arranged in an arc structure, and the stabilizing rods (8041) are slidably connected to the mounting brackets (801).