Traction machine capable of detecting traction force of tail rope

Abstract

The invention is applicable to the related technical field of draggers, and provides a dragger capable of detecting the traction force of a tail rope, comprising: a frame, both ends of the frame are provided with support legs, and the frame is provided with a drum assembly and a driving assembly for driving the drum assembly to work; the traction force adjusting mechanism is located on one side of the winding drum assembly and comprises a driving base and a supporting frame installed on the driving base in a sliding mode, the driving base is arranged on the rack, and an electric guide rail used for driving the supporting frame to move horizontally is arranged in the driving base; the supporting frame is at least provided with a traction force adjusting assembly; through the arrangement of the traction force adjusting mechanism, the problems that in the using process of an existing traction machine, traction force adjustment cannot be conducted in real time, a safety protection structure is lacked, a cable cannot be locked in an emergency situation, and certain potential safety hazards exist are solved.

Description

A traction machine that can detect the traction force of the tail rope Technical Field

[0001] This invention relates to the technical field of traction machines, specifically a traction machine capable of detecting the traction force of the tail rope. Background Technology

[0002] In the construction of high-voltage transmission lines, the traction machine is the core equipment for stringing lines, and its performance directly affects construction efficiency, safety, and project quality.

[0003] Currently, existing traction machines cannot adjust the tail rope traction force in real time during use and lack safety protection structures, making it impossible to lock the cable in emergencies, posing certain safety hazards. Therefore, there is an urgent need to provide a traction machine that can detect the tail rope traction force to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide a traction machine that can detect the traction force of the tail rope, thereby solving the problems mentioned in the background art.

[0005] This invention is implemented as follows: a traction machine capable of detecting the traction force of a tail rope includes: a frame, with support legs at both ends of the frame, and a drum assembly and a drive assembly for driving the drum assembly on the frame; a traction force adjustment mechanism located on one side of the drum assembly, the traction force adjustment mechanism including a drive base and a support frame slidably mounted on the drive base, the drive base being mounted on the frame, and an electric guide rail for driving the support frame to move horizontally within the drive base, the support frame having at least one set of traction force adjustment components; the traction force adjustment components including a lifting frame mounted on the support frame, a rotating shaft rotatably mounted on the lifting frame, and a traction roller fixed on the rotating shaft, a traction force detection unit being provided at the contact position between the traction roller and the cable, and a locking unit being provided on the traction roller.

[0006] As a further aspect of the present invention: the lifting frame is slidably mounted on the support frame, and the top of the support frame is provided with a telescopic cylinder for driving the lifting frame to rise and fall.

[0007] As a further aspect of the present invention: the traction force detection unit includes a pressure strain gauge traction force sensor for acquiring contact pressure.

[0008] As a further aspect of the present invention: the traction adjustment assembly further includes a second drive unit for driving the rotating shaft to rotate, and the second drive unit is designed with a brake assembly.

[0009] As a further embodiment of the present invention: the traction force adjustment assembly further includes a rotating ring rotatably mounted on the traction roller. Two sets of rotating rings are symmetrically arranged. One set of rotating rings has a pressing column slidably mounted on it, and a telescopic cylinder II for pushing the pressing column is provided inside the rotating ring. The other set of rotating rings has a groove for accommodating the pressing column. During operation, the pressing column on the side closer to the drum assembly is located at the top of the traction roller, and the pressing column on the side farther from the drum assembly is located at the bottom of the traction roller.

[0010] As a further embodiment of the present invention: an external gear ring is fixedly installed on one of the rotating rings, the external gear ring is meshed with a gear, and a drive unit is provided on the lifting frame for driving the gear to rotate, and a brake assembly is designed inside the drive unit.

[0011] As a further aspect of the present invention: the locking unit includes: a locking module, wherein multiple sets of the locking modules are arranged in a circumferential array within the rotating ring; and a driving component for driving the locking modules to operate.

[0012] As a further embodiment of the present invention: the locking module includes: a pressing block slidably installed in the traction roller, the pressing block having a compression chamber, and a piston plate slidably installed in the compression chamber; a circular hole opened in the pressing block, the circular hole communicating with the compression chamber through a guide groove opened in the pressing block; a linkage rod slidably installed in the pressing block, one end of the linkage rod being fixedly connected to the piston plate, and the other end of the linkage rod being fixedly installed with a pressing plate; and a spring for elastically supporting the piston plate, the spring being located in the compression chamber.

[0013] As a further embodiment of the present invention: the driving component includes: an internal gear ring rotatably mounted inside the traction roller, the internal gear ring being fixedly connected to a rotating ring; a support plate one fixedly mounted inside the traction roller, a threaded rod rotatably mounted on the support plate one, the end of the threaded rod extending into a circular hole of a pressing block, and an internal thread for threaded connection with the threaded rod being provided on the side of the circular hole near the support plate one; a support plate two fixedly mounted inside the traction roller, a rotating tube rotatably mounted on the support plate two, and a gear two meshing with the internal gear ring fixedly mounted on the rotating tube; and a control component for realizing the linkage between the rotating tube and the threaded rod.

[0014] As a further aspect of the present invention: the threaded rod is further provided with an air guide hole, and a sealing plug connected to the end of the threaded rod is slidably installed in the circular hole; a guide tube is fixedly installed on the lifting frame, and an air guide ring is fixedly installed at the end of the guide tube; multiple sets of air guide covers are slidably installed in the air guide ring, and the air guide covers are provided with through holes slidably connected to the connecting pipe; the control component includes: a support base, which is fixedly installed on the rotating pipe, and multiple sets of support bases are provided; a guide rod slidably installed on the support base, a linkage frame is fixedly installed at the end of the guide rod 1, and a spring 2 for elastically supporting the linkage frame is sleeved on the guide rod 1; and a control pipe, which is fixedly installed on the linkage frame. The system includes a threaded rod with a groove corresponding to the control tube, a control tube with a guide hole communicating with the air guide hole, a connecting tube for connecting the guide hole, a push plate for moving the linkage frame fixedly installed on the connecting tube, a control tube connected to the connecting tube via an expansion tube, and a fixed frame fixedly installed inside the control tube; wherein the inner diameter of the control tube is smaller than the inner diameter of the expansion tube; a guide rod two slidably installed on the fixed frame, one end of the guide rod two having a circular baffle, and the other end of the guide rod two having a sealing plate for sealing the control tube fixedly installed; and a spring three for elastically supporting the circular baffle, the spring three being sleeved on the guide rod two.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: a pressure strain gauge traction force sensor is set at the contact position between the traction roller and the cable. By collecting the contact pressure signal and combining it with the mechanical model derived from parameters such as drum diameter and wire wrap angle, the actual traction force value of the cable can be accurately obtained after signal conditioning and algorithm compensation correction, providing reliable data support for traction force adjustment.

[0016] The dual adjustment structure, which uses an electric guide rail to move the support frame horizontally and a telescopic cylinder to drive the lifting frame to rise and fall, can flexibly adjust the horizontal distance and height difference between the two sets of traction force adjustment components. This changes the cable routing angle and tension, ensuring that the cable is always within the optimal traction force range. This effectively avoids problems such as cable breakage due to excessive traction force and cable loosening due to insufficient traction force.

[0017] The drive unit drives the gear to rotate, which in turn drives the external gear ring and the rotating ring to rotate. This causes the pressing posts on the two sets of rotating rings to move towards each other, pressing the cable into an inverted S-shaped structure, thus achieving initial locking of the cable and preventing it from slipping out.

[0018] The locking unit further enhances the fixing effect on the basis of primary locking by combining pneumatic linkage and mechanical transmission. The external air source supplies air to the control tube through the conduit and air guide ring, which drives the linkage frame to move and link the control tube with the threaded rod. The internal gear ring drives the gear two and the rotating tube to rotate, which in turn drives the threaded rod to rotate and push the pressing block to slide outward, clamping the cable between the pressing block and the traction roller. Continuous air supply can push the piston plate to move down, which drives the pressing plate to further press the cable, achieving full locking of the cable and dealing with emergencies such as cable loosening, preventing the cable from separating from the reel assembly.

[0019] Both drive unit one and drive unit two have built-in brake components, which can achieve self-locking of the mechanism in the stopped state to prevent the traction roller or rotating ring from rotating accidentally and ensure the stability of the equipment after it stops.

[0020] The traction adjustment mechanism adopts a modular design, with two sets of traction adjustment components working together with a specific cable routing path (the cable enters from below the traction adjustment mechanism away from the drum assembly and exits from above the traction adjustment mechanism close to the drum assembly). The layout is compact and the adjustment efficiency is high, which can adapt to the traction control requirements of different cable specifications.

[0021] The locking modules adopt a circumferential array layout, and only the locking modules corresponding to the air guide hoods connected to the conduit participate in the work, ensuring that the locking force is concentrated on the contact area between the cable and the traction roller, resulting in precise and efficient locking. The sealing plug effectively prevents gas leakage and ensures the stability of the air pressure drive. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 is a front view of the present invention; Figure 2 is a structural schematic diagram of the traction adjustment mechanism in the present invention; Figure 3 is a bottom view of Figure 2; Figure 4 is a structural schematic diagram of the traction adjustment assembly in the present invention; Figure 5 is a left view of Figure 4; Figure 6 is a structural schematic diagram of the locking unit in the present invention; Figure 7 is a rear view of Figure 6; Figure 8 is a structural schematic diagram of Figure 7 after concealing the conduit and air guide ring; Figure 9 is a structural schematic diagram of the locking module in the present invention; Figure 10 is a schematic diagram of the internal structure of the pressing block in the present invention; Figure 11 is a bottom view of Figure 10; Figure 12 is a rear view of Figure 9; Figure 13 is a structural schematic diagram of Figure 12 after concealing the control component; Figure 14 is a structural schematic diagram of the control component in the present invention; Figure 15 is a schematic diagram of the internal structure at point A in Figure 14.

[0024] In the attached diagram: 1-Frame, 2-Drive assembly, 3-Drum assembly, 4-Support leg, 5-Drive base, 6-Support frame, 7-Rotating shaft, 8-Lifting frame, 9-Drive unit one, 10-Telescopic cylinder one, 11-Rotating ring, 12-External gear ring, 13-Traction roller, 14-Pressing column, 15-Drive unit two, 16-Guide pipe, 17-Pressing block, 18-Air guide ring, 19-Gear one, 20-Internal gear ring, 21-Support plate one, 22-Support plate two, 23-Air guide hood, 24- - Gear 2, 25- Rotary tube, 26- Linkage block, 27- Linkage frame, 28- Threaded rod, 29- Sealing plug, 30- Air guide hole, 31- Flow guide groove, 32- Compression chamber, 33- Piston plate, 34- Pressing plate, 35- Linkage rod, 36- Spring 1, 37- Support seat, 38- Control tube, 39- Guide rod 1, 40- Spring 2, 41- Push plate, 42- Connecting tube, 43- Expansion tube, 44- Sealing plate, 45- Fixing frame, 46- Spring 3, 47- Guide rod 2. Detailed Implementation

[0025] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] The present invention will be further explained below with reference to specific embodiments.

[0029] Please refer to Figures 1-15. An embodiment of the present invention provides a traction machine capable of detecting the traction force of a tail rope, comprising: a frame 1, with support legs 4 at both ends of the frame 1, and a drum assembly 3 and a drive assembly 2 for driving the drum assembly 3 on the frame 1; a traction force adjustment mechanism located on one side of the drum assembly 3, the traction force adjustment mechanism including a drive base 5 and a support frame 6 slidably mounted on the drive base 5, the drive base 5 being disposed on the frame 1, and an electric guide rail for driving the support frame 6 to move horizontally within the drive base 5, the support frame 6 being provided with at least one set of traction force adjustment components; the traction force adjustment components including a lifting frame 8 disposed on the support frame 6, a rotating shaft 7 rotatably mounted on the lifting frame 8, and a traction roller 13 fixed on the rotating shaft 7, a traction force detection unit being disposed at the contact position between the traction roller 13 and the cable, and a locking unit being disposed on the traction roller 13.

[0030] The lifting frame 8 is slidably mounted on the support frame 6, and the top of the support frame 6 is provided with a telescopic cylinder 10 for driving the lifting frame 8 to rise and fall.

[0031] In embodiments of the present invention, the traction force adjustment mechanism is preferably two sets, and the path of the cable passing through the two sets of traction force adjustment mechanisms is shown by the arrow in Figure 1. The cable enters from below the traction force adjustment mechanism away from the end of the drum assembly 3 and above the traction force adjustment mechanism near the side of the drum assembly 3, and finally enters the drum assembly 3. The traction force detection unit realizes real-time detection of the cable traction force. The telescopic cylinder 10 drives the lifting frame 8 to move up and down, which can create a height difference between the two sets of traction force adjustment components, making it easy to adjust the traction force of the cable and keep the cable within the optimal traction force range. With the setting of the locking unit, the cable can be locked onto the traction roller 13 in time when the cable becomes loose or other emergencies occur, preventing the cable from separating from the drum assembly 3 and improving the safety performance of the traction machine. Compared with the prior art, the present invention avoids the problems of existing traction machines not being able to adjust the traction force in real time during use and lacking a safety protection structure, which makes it impossible to lock the cable in an emergency and poses certain safety hazards.

[0032] The traction force detection unit includes a pressure strain gauge traction force sensor for acquiring contact pressure. The contact pressure is acquired by the pressure strain gauge traction force sensor, then signal-conditioned and converted, and algorithmically compensated to obtain traction force data. The cable exerts vertical pressure on the drum contact surface of the drum assembly 3. This pressure and the conductor traction force satisfy a fixed mechanical relationship (derived from parameters such as drum diameter and conductor wrap angle). The sensor captures this pressure signal, and the actual conductor traction force value can be obtained by conversion: the conductor traction force F acts on the drum contact point, generating pressure P; the sensor converts the pressure P into an electrical signal (such as resistance change); combined with a preset mechanical model (F=k×P, k is a calibration coefficient), the traction force value is calculated.

[0033] In one embodiment of the present invention, referring to Figures 1-15, the traction force adjustment assembly further includes a second drive unit 15 for driving the rotating shaft 7 to rotate. The second drive unit 15 is designed with a brake assembly, enabling self-locking in the stopped state. The traction force adjustment assembly also includes a rotating ring 11 rotatably mounted on the traction roller 13. Two sets of rotating rings 11 are symmetrically arranged. A pressing column 14 is slidably mounted on one set of rotating rings 11, and a telescopic cylinder 2 for pushing the pressing column 14 to move is provided within the rotating ring 11. A set of rotating rings 11 has grooves for accommodating pressing columns 14. During operation, the pressing column 14 on the side closer to the drum assembly 3 is located at the top of the traction roller 13, and the pressing column 14 on the side away from the drum assembly 3 is located at the bottom of the traction roller 13. An external toothed ring 12 is also fixedly installed on one of the rotating rings 11. The external toothed ring 12 is meshed with a gear 19, and the lifting frame 8 is provided with a drive unit 9 for driving the gear 19 to rotate. The drive unit 9 is designed with a brake assembly, which can achieve self-locking in the stopped state.

[0034] In this embodiment, both the drive unit 9 and the drive unit 15 can adopt existing publicly available technologies. The drive unit 9 drives the gear 19 to rotate, which in turn drives the external gear ring 12 to rotate. The external gear ring 12 drives the rotating ring 11 to rotate. The rotating ring 11 drives the pressing post 14 to press onto the cable, thereby locking the cable. The rotating ring 11 near the drum assembly 3 rotates clockwise, while the other set of rotating rings 11 rotates counterclockwise, causing the two sets of pressing posts 14 to move simultaneously toward the middle of the two sets of rotating rings 11. This presses the cable between the two sets of rotating rings 11 into an inverted S-shaped structure, improving the locking effect.

[0035] In one embodiment of the present invention, please refer to Figures 1-15. The locking unit includes: a locking module, wherein multiple locking modules are arranged in a circumferential array within the rotating ring 11; and a driving component for driving the locking module to work. The locking module includes: a pressing block 17 slidably mounted within the traction roller 13, the pressing block 17 having a compression chamber 32, and a piston plate 33 slidably mounted within the compression chamber 32; a circular hole opened within the pressing block 17, the circular hole communicating with the compression chamber 32 via a guide groove 31 opened within the pressing block 17; a linkage rod 35 slidably mounted within the pressing block 17, one end of the linkage rod 35 being fixedly connected to the piston plate 33, and the other end of the linkage rod 35 being fixedly mounted with a pressing plate 34; for controlling the movement of the locking module. A spring 36 provides elastic support to the stopper plate 33, and the spring 36 is located inside the compression chamber 32; the driving component includes: an internal gear ring 20 rotatably mounted inside the traction roller 13, the internal gear ring 20 being fixedly connected to the rotating ring 11; a support plate 21 fixedly mounted inside the traction roller 13, on which a threaded rod 28 is rotatably mounted, and the end of the threaded rod 28 extends into the circular hole of the pressing block 17, the circular hole having an internal thread that is threadedly connected to the threaded rod 28 on the side near the support plate 21; and a support plate 22 fixedly mounted inside the traction roller 13, on which a rotating tube 25 is rotatably mounted, and on the rotating tube 25 a gear 24 that meshes with the internal gear ring 20; used to realize the rotating tube 25. A control component that is linked to the threaded rod 28; the threaded rod 28 is also provided with an air guide hole 30, and a sealing plug 29 connected to the end of the threaded rod 28 is slidably installed in the circular hole; a guide tube 16 is fixedly installed on the lifting frame 8, and an air guide ring 18 is fixedly installed at the end of the guide tube 16; multiple sets of air guide covers 23 are slidably installed in the air guide ring 18 (wherein, the air guide cover 23 can slide around the circular trajectory of the air guide ring 18 in the air guide ring 18), and a through hole is provided on the air guide cover 23 that is slidably connected to the connecting pipe 42; the control component includes: a support base 37, the support base 37 is fixedly installed on the rotating pipe 25, and multiple sets of support bases 37 are provided; a guide rod 39 is slidably installed on the support base 37, the... A linkage frame 27 is fixedly installed at the end of the guide rod 39, and a spring 40 for elastically supporting the linkage frame 27 is sleeved on the guide rod 39; a control tube 38 is fixedly installed on the linkage frame 27, and a groove corresponding to the control tube 38 is opened on the threaded rod 28, and a guide hole communicating with the air guide hole 30 is opened on the control tube 38; a connecting pipe 42 for connecting the guide hole is fixedly installed on the connecting pipe 42, and a push plate 41 for pushing the linkage frame 27 to move is fixedly installed on the connecting pipe 42; the control tube 38 is connected to the connecting pipe 42 through an expansion pipe 43, and a fixing frame 45 is also fixedly installed inside the control tube 38; wherein, the inner diameter of the control tube 38 is smaller than the inner diameter of the expansion pipe 43;A guide rod 47 is slidably mounted on the fixed frame 45. One end of the guide rod 47 is provided with a circular baffle, and the other end of the guide rod 47 is fixedly mounted with a sealing plate 44 for sealing the control tube 38; and a spring 46 is provided for elastic support of the circular baffle, the spring 46 being sleeved on the guide rod 47.

[0036] In this embodiment, during use, when the conduit 16 is connected to an external air source and locking is required, the external gear ring 12 drives the rotating ring 11 to rotate, and the conduit 16 vents into the air guide ring 18. Under the blocking action of the sealing plate 44, the push plate 41 is pushed to move towards the control tube 38. The push plate 41 can then push the linkage frame 27 to move, allowing the control tube 38 to be inserted into the groove of the threaded rod 28, so that the rotating tube 25 is linked with the threaded rod 28. When the rotating ring 11 drives the internal gear ring 20 to rotate, the internal gear ring 20 will drive the rotating tube 25 to rotate using the gear 24. The rotating tube 25 will drive the threaded rod 28 to rotate, thereby causing the pressing block 17 to slide outward, so that the pressing block 17 presses onto the cable, and the cable is clamped between the pressing block 17 and the traction roller 13. After the pressing block 17 moves into place, the cable continues to move. As air continues to circulate within the guide ring 18, the sealing plate 44, under air pressure, pulls the guide rod 47 to move. When the sealing plate 44 enters the expansion tube 43, the gas will enter the push plate 41 from the gap between the sealing plate 44 and the expansion tube 43, and then enter the air guide hole 30 through the connecting pipe 42 and the control pipe 38. Finally, it will enter the compression chamber 32 through the guide groove 31, pushing the piston plate 33 downward. This causes the linkage rod 35 to drive the pressing plate 34 to move with the piston plate 33, so that the pressing plate 34 presses onto the cable, achieving full locking. The sealing plug 29 can prevent gas from leaking outward from the connection between the threaded rod 28 and the internal thread. Only the air guide cover 23, which is connected to the guide tube 16, will guide the gas into the control tube 38. The guide tube 16 is located at the connection between the traction roller 13 and the cable, which facilitates the operation of the locking module located near the connection.

[0037] In summary, the working principle of this invention is as follows: the cable enters from below the traction force adjustment mechanism at the end away from the drum assembly 3, above the traction force adjustment mechanism on the side closer to the drum assembly 3, and finally enters the drum assembly 3. The traction force detection unit enables real-time detection of the cable traction force. The telescopic cylinder 10, by driving the lifting frame 8 to move up and down, creates a height difference between the two sets of traction force adjustment components, facilitating the adjustment of the cable traction force and ensuring the cable is within the optimal traction force range. The locking unit can promptly lock the cable onto the traction roller 13 in case of sudden situations such as cable loosening, preventing the cable from separating from the drum assembly 3 and improving the safety performance of the traction machine. The specific details of the traction force adjustment mechanism... The working steps are as follows: Drive unit 9 drives gear 19 to rotate, which in turn drives external gear ring 12 to rotate. External gear ring 12 then drives rotating ring 11 to rotate. Rotating ring 11 drives pressing pin 14 to press onto the cable, thus locking the cable. The rotating ring 11 near the drum assembly 3 rotates clockwise, while the other set of rotating rings 11 rotates counterclockwise, causing both sets of pressing pins 14 to move simultaneously towards the center of the two sets of rotating rings 11. This presses the cable between the two sets of rotating rings 11 into an inverted S-shape, improving the locking effect. The conduit 16 is connected to an external air source. When locking is required, external gear ring 12 drives rotating ring 11 to rotate, and conduit 16 vents air into the air guide ring 18. Under the blocking action of the sealing plate 44, the push plate 41 will be pushed to move towards the control tube 38. The push plate 41 can then push the linkage frame 27 to move, allowing the control tube 38 to be inserted into the groove of the threaded rod 28, so that the rotating tube 25 is linked with the threaded rod 28. When the rotating ring 11 drives the internal gear ring 20 to rotate, the internal gear ring 20 will drive the rotating tube 25 to rotate through the gear 24. The rotating tube 25 will drive the threaded rod 28 to rotate, thereby driving the pressing block 17 to slide outward, so that the pressing block 17 presses onto the cable, and the cable is clamped between the pressing block 17 and the traction roller 13. After the pressing block 17 moves into place, air continues to be vented into the air guide ring 18. Under the action of air pressure, the sealing plate 44 pulls the guide rod 47 to move. After the blocking plate 44 enters the expansion tube 43, the gas will enter the push plate 41 through the gap between the blocking plate 44 and the expansion tube 43, and then enter the air guide hole 30 through the connecting pipe 42 and the control pipe 38. Finally, it will enter the compression chamber 32 through the guide groove 31, pushing the piston plate 33 to move down. This causes the linkage rod 35 to drive the pressing plate 34 to move with the piston plate 33, so that the pressing plate 34 presses onto the cable to achieve full locking. The blocking plate 29 can prevent gas from leaking out from the connection between the threaded rod 28 and the internal thread. Only the air guide cover 23 connected to the guide tube 16 will guide the gas into the control tube 38. The guide tube 16 is located at the connection between the traction roller 13 and the cable, which facilitates the operation of the locking module located near the connection.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A traction machine capable of detecting the traction force of a tail rope, comprising a frame (1), wherein both ends of the frame (1) are provided with support legs (4), and a drum assembly (3) and a drive assembly (2) for driving the drum assembly (3) are provided on the frame (1), characterized in that, It also includes: a traction force adjustment mechanism located on one side of the drum assembly (3), the traction force adjustment mechanism including a drive base (5) and a support frame (6) slidably mounted on the drive base (5), the drive base (5) is set on the frame (1), and an electric guide rail for driving the support frame (6) to move is provided inside the drive base (5), and at least one set of traction force adjustment components is provided on the support frame (6); the traction force adjustment component includes a lifting frame (8) set on the support frame (6), a rotating shaft (7) is rotatably mounted on the lifting frame (8), and a traction roller (13) is fixed on the rotating shaft (7), a traction force detection unit is provided at the contact position between the traction roller (13) and the cable, and a locking unit is also provided on the traction roller (13).

2. The traction machine capable of detecting traction force according to claim 1, characterized in that, The lifting frame (8) is slidably mounted on the support frame (6), and the top of the support frame (6) is provided with a telescopic cylinder (10) for driving the lifting frame (8) to rise and fall.

3. The traction machine capable of detecting traction force according to claim 1, characterized in that, The traction force detection unit includes a pressure strain gauge traction force sensor for acquiring contact pressure.

4. The traction machine capable of detecting traction force according to claim 1, characterized in that, The traction adjustment assembly also includes a second drive unit (15) for driving the rotating shaft (7) to rotate, and the second drive unit (15) is designed with a brake assembly.

5. The traction machine capable of detecting traction force according to claim 4, characterized in that, The traction force adjustment assembly also includes a rotating ring (11) rotatably mounted on the traction roller (13). The rotating ring (11) is symmetrically arranged in two sets. One set of rotating rings (11) has a pressing column (14) slidably mounted on it, and the rotating ring (11) is provided with a telescopic cylinder for pushing the pressing column (14) to move. The other set of rotating rings (11) has a groove for accommodating the pressing column (14). During operation, the pressing column (14) on the side closer to the drum assembly (3) is located at the top of the traction roller (13), and the pressing column (14) on the side away from the drum assembly (3) is located at the bottom of the traction roller (13).

6. The traction machine capable of detecting traction force according to claim 5, characterized in that, One of the rotating rings (11) is also fixedly installed with an external gear ring (12), which is meshed with a gear (19), and the lifting frame (8) is provided with a drive unit (9) for driving the gear (19) to rotate, and the drive unit (9) is designed with a brake assembly.

7. The traction machine capable of detecting traction force according to claim 1, characterized in that, The locking unit includes: a locking module, which has multiple sets arranged in a circumferential array within the rotating ring (11); and a driving component for driving the locking module to work.

8. The traction machine capable of detecting traction force according to claim 7, characterized in that, The locking module includes: a pressing block (17) slidably installed in the traction roller (13), the pressing block (17) having a compression chamber (32) and a piston plate (33) slidably installed in the compression chamber (32); a circular hole opened in the pressing block (17), the circular hole and the compression chamber (32) being connected through a guide groove (31) opened in the pressing block (17); a linkage rod (35) slidably installed in the pressing block (17), one end of the linkage rod (35) being fixedly connected to the piston plate (33), and the other end of the linkage rod (35) being fixedly installed with a pressing plate (34); and a spring (36) for elastically supporting the piston plate (33), the spring (36) being located in the compression chamber (32).

9. The traction machine capable of detecting traction force according to claim 8, characterized in that, The driving component includes: an internal gear ring (20) rotatably mounted in the traction roller (13), the internal gear ring (20) being fixedly connected to the rotating ring (11); a support plate one (21) fixedly mounted in the traction roller (13), a threaded rod (28) being rotatably mounted on the support plate one (21), and the end of the threaded rod (28) extending into the circular hole of the pressing block (17), and an internal thread connected to the threaded rod (28) being provided on the side of the circular hole near the support plate one (21); a support plate two (22) fixedly mounted in the traction roller (13), a rotating tube (25) being rotatably mounted on the support plate two (22), and a gear two (24) meshing with the internal gear ring (20) being fixedly mounted on the rotating tube (25); and a control component for realizing the linkage between the rotating tube (25) and the threaded rod (28).

10. The traction machine capable of detecting traction force according to claim 9, characterized in that, The threaded rod (28) is also provided with an air guide hole (30), and a sealing plug (29) connected to the end of the threaded rod (28) is slidably installed in the circular hole. A guide tube (16) is fixedly installed on the lifting frame (8), and an air guide ring (18) is fixedly installed at the end of the guide tube (16). Multiple sets of air guide covers (23) are slidably installed in the air guide ring (18), and a through hole is provided on the air guide cover (23) to be slidably connected to the connecting pipe (42). The control component includes: a support base. (37), the support base (37) is fixedly installed on the rotating tube (25), and the support base (37) is provided with multiple sets; a guide rod (39) is slidably installed on the support base (37), the end of the guide rod (39) is fixedly installed with a linkage frame (27), and a spring (40) for elastically supporting the linkage frame (27) is sleeved on the guide rod (39); a control tube (38), the control tube (38) is fixedly installed on the linkage frame (27), and the thread is The rod (28) has a groove corresponding to the control tube (38), and the control tube (38) has a guide hole that communicates with the air guide hole (30); a connecting tube (42) for connecting the guide hole, and a push plate (41) for pushing the linkage frame (27) to move is fixedly installed on the connecting tube (42); the control tube (38) is connected to the connecting tube (42) through an expansion tube (43), and a fixing frame is also fixedly installed inside the control tube (38). (45); wherein, the inner diameter of the control tube (38) is smaller than the inner diameter of the expansion tube (43); a guide rod two (47) is slidably installed on the fixed frame (45), one end of the guide rod two (47) is provided with a circular baffle, and the other end of the guide rod two (47) is fixedly installed with a sealing plate (44) for sealing the control tube (38); and a spring three (46) for elastically supporting the circular baffle, the spring three (46) is sleeved on the guide rod two (47).

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