Cable traction device

Abstract

The invention relates to the technical field of cable traction, in particular to a cable traction device. The traction device comprises a marking mechanism used for making a preset mark on the outer wall of the cable and used for collecting appearance shape, position and time data of the preset mark; the device comprises a detection mechanism for detecting a cable image at a corresponding position of the detection mechanism, a control module for detecting whether a predetermined mark deviates in a traction process so as to judge whether the cable is twisted, and a correction mechanism for rotating the cable along the reverse direction of the torque force of the cable so as to adjust the cable to be straight from torsion. According to the invention, the torsion condition of the cable can be detected in time, the torsion force which is not easy to observe is converted into a visual predetermined mark, the agility and accuracy of capturing the torsion condition are improved, the torsion angle is automatically corrected in real time, and the cable is prevented from being distorted and deformed.

Description

Technical Field

[0001] This invention relates to the field of cable traction technology, specifically a cable traction device. Background Technology

[0002] The cable pulling device consists of several parts, including an unwinding device, a cable conveyor, a pressure traction machine, and a winding device. Both the cable conveyor and the pressure traction machine provide the traction force to propel the cable forward. During pulling, one end of the cable is fitted with a pulling net and secured, while the pulling rope at the other end of the net is connected to the pressure traction machine for pulling.

[0003] During cable laying, an unwinding device is installed at one end of the laying line to unwind the coiled cable, and a pressure traction machine is installed at the other end of the laying line. When transporting long-distance, large-diameter, or heavy-load cables, insufficient traction can lead to transmission interruptions or uneven speeds. Therefore, several cable conveyors are placed in the middle of the laying line to apply forward traction to the cable and compensate for insufficient traction.

[0004] The cable conveyor includes two symmetrically arranged tracks. The start, stop, rotation speed, and direction of the two tracks are controlled by an internal power mechanism. Supports are provided at both the inlet and outlet ends of the cable conveyor. The support includes a column and two rollers rotatably mounted on the column. The traction rope and cable pass through the two rollers of the same support, which provides support and limit for the rollers. The height of the rollers on the column can be adjusted.

[0005] In existing technologies, very high control precision is required to keep the conveying speed and start-up time of several cable conveyors consistent. Even a slight error can cause the conveying speed of the cable conveyors to be inconsistent, which can lead to cable twisting. Twisting can cause difficulties in the cable conveyor and cable breakage. Existing equipment cannot detect and correct cable twisting in a timely manner. Summary of the Invention

[0006] The purpose of this invention is to provide a cable traction device to solve the problems raised in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cable traction device for applying traction force to a cable along a cable traction route, comprising: The conveyor body consists of several units distributed along the traction route; A marking mechanism, located at one end of the first conveyor body, is used to make predetermined marks on the outer wall of the cable; The detection mechanism, located at the input end of each of the conveyor bodies, is used to collect data on the shape, position, and time of the appearance of predetermined marks, as well as corresponding cable images; A calibration mechanism, located between each of the detection mechanisms and the conveyor body, is used to rotate the cable in the opposite direction of the cable twist, so that the cable is adjusted from twist to straight. The cable passes in a straight line at the same height through the detection mechanism, marking mechanism one, and correction mechanism located at the end of the conveyor body, and then passes between the two tracks on both sides of the conveyor body and marking mechanism two. The control module, located on each conveyor body, is connected to the detection and correction mechanisms. It receives data collected by the detection mechanism, compares the data with predetermined markers, determines whether the loop cable has twisted during the traction process and the specific direction and angle of the twist, and controls the correction mechanism to perform correction based on the determination.

[0008] Furthermore, both the marking mechanism and the correction mechanism include a translation component, an active component, a support ring, a telescopic component, and a driven component. The translation component is used to drive the support ring and the active component on it to move closer to or away from the conveyor body. The driven component is coaxially rotatably disposed within the support ring. The active component controls the start, stop, and rotation direction of the driven component. The telescopic component is located on the driven component, and its driving end moves along the radial direction of the support ring.

[0009] Furthermore, the marking mechanism also includes a support block and a marking pen. The support block fixes the support ring. The telescopic component includes a first telescopic component located on the support block, and a second and a third telescopic component located on the driven component. The central axes of the second and third telescopic components are collinear and pass through the center of the support ring. The marking pen includes a first marking pen located at the driving end of the first telescopic component, a second marking pen located at the driving end of the second telescopic component, and a third marking pen located at the driving end of the third telescopic component, used to control the distance between the marking pen and the cable.

[0010] Furthermore, the detection mechanism includes an annular through-hole frame and several color fiber optic sensors. The several color fiber optic sensors are arranged in a circular array on the annular through-hole frame, and the detection paths of the several color fiber optic sensors are converged, with the convergence center being the center of the annular through-hole frame. An image acquisition device is also provided on the annular through-hole frame.

[0011] Furthermore, the calibration mechanism also includes a clamping block, and the telescopic member also includes a telescopic member four located on the calibration mechanism. The clamping block is located at the driving end of the telescopic member four and is used to clamp and fix the cable, and drive the cable to twist synchronously when the driven member rotates.

[0012] Furthermore, the telescopic component is an electric push rod.

[0013] Furthermore, the marking mechanism also includes a support assembly corresponding to the number of conveyor bodies. The support assembly includes two support members, one of which is located on the side of the detection mechanism away from the conveyor body, and the other support member is located at the output end of the conveyor body. The support includes a column, a roller, and bolts. Several adjustment holes are vertically distributed on the column. The bolts pass through the adjustment holes and are threaded to the end of the roller to adjust the height of the cable.

[0014] Furthermore, the translation component includes a carriage and a track. The carriage moves along the track towards or away from the conveyor body. A rack is provided on the inner wall of the track. A second motor and a gear transmission assembly are provided on the carriage. The output shaft of the second motor is connected to the rack through the gear transmission assembly.

[0015] Furthermore, the driving component includes a third motor and a first spur gear. The third motor is located on the slide, and the output shaft of the third motor is connected to the first spur gear, which controls the driven component.

[0016] Furthermore, the driven member includes an inner ring and a second spur gear. The inner ring is rotatably mounted on the support ring, and the second spur gear is sleeved at the upper edge of the support ring. The second spur gear meshes with the first spur gear. The telescopic member passes through the inner ring, and the telescopic path is along the radius of the inner ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The traction device employed in this invention includes a marking mechanism for making predetermined marks on the outer wall of the cable, for collecting data on the shape, position, and time of the predetermined marks, and for detecting the corresponding cable image at the detection mechanism. It also includes a control module for detecting whether the predetermined marks shift during traction, thereby determining whether the cable is twisted, and a correction mechanism for rotating the cable in the opposite direction of the cable's torque force, thus straightening the cable from twisted to straight. This invention can detect cable twisting in a timely manner, transforming the difficult-to-observe torsional force into a visually apparent predetermined mark, improving the agility and accuracy of torsion detection, and automatically correcting the torsion angle in real time to prevent cable distortion. Attached Figure Description

[0018] Figure 1 This is an overall diagram of the present invention; Figure 2 This is a front view of the marking mechanism in this invention; Figure 3 This is a rear view of the marking mechanism in this invention; Figure 4 This is a top view of the marking mechanism in this invention; Figure 5This is a perspective view of the telescopic component four in this invention; Figure 6 This is a schematic diagram showing the torsion levels corresponding to the marked simulation diagrams in this invention; In the diagram: 1. Conveyor body; 2. Track; 3. Translation component; 4. Driving component; 5. Support ring; 6. Driven component; 12. Support block; 121. Telescopic component one; 122. Telescopic component two; 123. Telescopic component three; 124. Marking pen one; 125. Marking pen two; 126. Marking pen three; 131. Annular through-hole bracket; 132. Color fiber optic sensor; 141. Clamping block; 142. Telescopic component four; 15. Support component three; 151. Column; 152. Roller body; 153. Bolt; 31. Carriage; 32. Track; 33. Rack; 34. Motor II; 35. Gear transmission assembly; 41. Motor Three; 42. Circular Gear One; 61. Inner ring; 62. Circular gear II. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0020] See Figures 1-6 .

[0021] This invention provides a cable pulling device for applying a pulling force to a cable along a cable pulling route, comprising: The conveyor body 1 is provided with several of them and distributed along the traction route; A marking mechanism, located at one end of the first conveyor body 1, is used to make predetermined marks on the outer wall of the cable; The detection mechanism, located at the input end of each of the conveyor bodies 1, is used to collect data on the shape, position, and time of the appearance of predetermined marks, as well as cable images at the corresponding locations. A calibration mechanism, located between each of the detection mechanisms and the conveyor body 1, is used to rotate the cable in the opposite direction of the cable twist, so that the cable is adjusted from twist to straight. refer to Figure 1The cable passes in a straight line through the detection mechanism, marking mechanism one, and correction mechanism located at the end of the conveyor body 1 at the same height, and then passes between the two side tracks 2 of the conveyor body 1 and marking mechanism two; marking mechanism one is located at the inlet end of the conveyor body 1, and marking mechanism two is located at the outlet end of the conveyor body 1.

[0022] The control module, located on each conveyor body 1, is connected to the detection mechanism and the correction mechanism. It receives data collected by the detection mechanism, compares the data with predetermined marks, determines whether the loop cable has twisted during the traction process and the specific twisting direction and angle, and controls the correction mechanism to perform correction based on the determination.

[0023] Both the marking mechanism and the correction mechanism include a translation component 3, an active component 4, a support ring 5, a telescopic component, and a driven component 6. The translation component 3 is used to drive the support ring 5 and the active component 4 on it to move closer to or away from the conveyor body 1. The driven component 6 is coaxially rotatably disposed inside the support ring 5. The active component 4 controls the start, stop, and rotation direction of the driven component 6. The telescopic component is located on the driven component 6, and its driving end moves along the radial direction of the support ring 5.

[0024] In one embodiment, the cable is pulled from the unwinding mechanism to the winding mechanism. Starting from the unwinding mechanism, a marking mechanism and a detection mechanism are sequentially provided at the inlet end of the first conveyor along the inlet direction; a detection mechanism and a correction mechanism are provided at the inlet end of the subsequent several conveyors along the inlet direction.

[0025] The marking mechanism further includes a support block 12 and a marking pen. The support block 12 fixes the support ring 5. The telescopic component includes a first telescopic component 121 located on the support block 12, and a second telescopic component 122 and a third telescopic component 123 located on the driven component 6. The central axes of the second telescopic component 122 and the third telescopic component 123 are collinear and pass through the center of the support ring 5. The marking pen includes a first marking pen 124 located at the driving end of the first telescopic component 121, a second marking pen 125 located at the driving end of the second telescopic component 122, and a third marking pen 126 located at the driving end of the third telescopic component 123, which are used to control the distance between the marking pen and the cable.

[0026] The detection mechanism includes an annular through-hole frame 131 and several color fiber optic sensors 132. The color fiber optic sensors 132 are arranged in a circular array on the annular through-hole frame 131, and their detection paths converge, with the center of convergence being the center of the annular through-hole frame 131. An image acquisition device is also provided on the annular through-hole frame 131. The color fiber optic sensors 132 are existing technology; their principle is to identify colors by detecting the spectral characteristics of an object's reflection or transmission, such as wavelength and intensity. For example, integrating red, green, and blue RGB filters can output the light intensity values ​​of each channel, and the color is calculated through an algorithm; therefore, no detailed description is provided. The calibration mechanism also includes a clamping block 141, and the telescopic component also includes a telescopic component four 142 located on the calibration mechanism. The clamping block 141 is located at the driving end of the telescopic component four 142 and is used to clamp and fix the cable, causing the cable to twist synchronously when the driven component 6 rotates.

[0027] Furthermore, the telescopic component is an electric push rod.

[0028] Furthermore, the marking mechanism also includes a support assembly corresponding to the number of conveyor bodies 1. The support assembly includes two support members, one of which is located on the side of the detection mechanism away from the conveyor body 1, and the other support member is located at the output end of the conveyor body 1. The support component includes a column 151, a roller 152, and bolts 153. The column 151 has several vertically distributed adjustment holes. The bolts 153 pass through the adjustment holes and are threadedly connected to the end of the roller 152 for adjusting the cable height. The support component primarily serves to support, limit, and compress the cable.

[0029] Furthermore, the translation component 3 includes a slide 31 and a track 32. The slide 31 moves along the track 32 towards or away from the conveyor body 1. The inner wall of the track 32 is provided with a rack 33. The slide 31 is provided with a second motor 34 and a gear transmission group 35. The output shaft of the second motor 34 is connected to the rack 33 through the gear transmission group 35.

[0030] Furthermore, the driving component 4 includes a motor 41 and a spur gear 42. The motor 41 is located on the slide 31, and the output shaft of the motor 41 is connected to the spur gear 42. The spur gear 42 controls the driven component 6.

[0031] Furthermore, the driven member 6 includes an inner ring 61 and a second spur gear 62. The inner ring 61 is rotatably mounted on the support ring 5, and the second spur gear 62 is sleeved at the upper edge of the support ring 5. The second spur gear 62 meshes with the first spur gear 42. The telescopic member passes through the inner ring 61, and the telescopic path is along the radius of the inner ring 61.

[0032] In use, the unwinding mechanism releases the cable, fixing one end of the traction net sleeve to the cable. The other end of the traction net sleeve is equipped with a traction rope, which passes through the vertical support member 315, marking mechanism, detection mechanism, correction mechanism, vertical support member 1, the conveying space between the tracks 2, and vertical support member 2 on the first conveyor body 1; finally, after passing through the pressure traction machine, it is fixed to the winding mechanism. The specific traction steps are as follows: Step S1: Vertical support component 1 and vertical support component 2 are respectively provided at both ends of the conveyor body 1. Adjust the height of the roller 152 in the lower position on vertical support component 1, vertical support component 2 and vertical support component 3 15 so that the distance from the highest point of the roller 152 to the center of the support ring 5 is equal to the radius of the cable. Then adjust the roller 152 in the higher position so that the upper and lower rollers 152 of one support component are in contact with the outer wall of the cable. The crawler 2 on both sides drives the traction rope forward, and the traction rope pulls the cable forward. Step S2: When the cable reaches the marking mechanism, the telescopic component 121 extends and drives the marking pen 124 to stick to the outer wall of the cable. As the cable moves forward, a yellow mark a is left on the top of the cable. The telescopic component 121 retracts and drives the marking pen 124 away from the cable to reset. When the cable reaches the support ring 5, the marking mechanism operates: the translation component of the marking mechanism moves, and the slide 31 moves along the track 32 towards the first conveyor body 1, with the same speed and direction as the cable at the conveyor body 1; simultaneously, the telescopic components 122 and 123 extend, and the motor 41 rotates; the output shaft of the motor 41 drives the first gear 42 to rotate, and the first gear 42 meshes with the second gear 62, driving the inner ring 61 to rotate. The inner ring 61 drives the telescopic components 122, 123, 125, and 126 to rotate synchronously, so that the second pen 125 draws an arc-shaped blue mark b on one side of the cable's outer wall, and the third pen 126 draws an arc-shaped red mark c on the other side of the cable's outer wall, until the telescopic components 122 and 123 rotate half a circle along the track on the support ring and obtain the predetermined mark, then the telescopic components 121, 122, and 123 retract and reset, and the motor 41 resets.

[0033] Step S3: When the cable reaches the detection mechanism, when the predetermined mark reaches the detection mechanism, several color fiber optic sensors 132 identify the colors on their detection paths and transmit the identified data to the control module. The control module then establishes a mark simulation diagram. The simulated mark diagram generated using the detection mechanism on the first conveyor body 1 as data is used as the standard diagram. Simulated mark diagrams generated using the detection mechanisms on subsequent conveyor bodies 1 as data are used as target diagrams. Each target diagram is compared with the standard diagram, and the offset of predetermined marks in the target diagram is marked. For example, the offset in radians of the yellow mark 'a' is used as the offset. Torsion levels are classified according to the offset: 0-5 degrees is normal, 5-45 degrees is level one, 45-135 degrees is level two, and offsets above 135 degrees are level three. (Reference) Figure 5 .

[0034] The surface of the cables manufactured is not a completely smooth plane. To prevent slippage during traction, the surface of the cables leaving the factory has a uniform texture, such as evenly distributed depressions and protrusions. The image acquisition device captures cable image data at the inspection mechanism. When the cable twists at the exit, the depressions and protrusions also twist and deform. The more turns the cable makes, the greater the degree of deformation of the surface texture. Based on the direction and force of the deformation of the cable surface texture, the direction and number of turns of the cable rotation are determined. This part is an existing image acquisition and analysis system and will not be described in detail.

[0035] Step S4: If normal, do not activate the second calibration mechanism; If it is a first or second level, the calibration mechanism is activated; the telescopic component and motor 341 of the calibration mechanism operate, the telescopic component extends, the motor 341 rotates, the slide 31 slides along the track 32, the sliding direction and speed are the same as the cable at the conveyor body 1, similarly driving the inner ring 61 of the detection mechanism to rotate, the telescopic component extends and drives the clamping block 141 to fit against the outer wall of the cable, the inner ring 61 drives the telescopic component, the clamping block 141 and the cable to rotate synchronously, the rotation direction is opposite to the original cable twisting direction, and then drives the cable to change from twisting to straight; If it is level three, it means that the speed difference between the two conveyor bodies 1 is too large. There are three commands that can be issued, and the appropriate command should be selected according to the actual situation. First: Do not activate the second correction mechanism, and add a conveyor body 1 between the two conveyor bodies 1; Second: Adjust the conveying speed of the conveyor body 1 to reduce the speed difference between the two conveyor bodies 1; Third: Same as level one, activate the correction mechanism.

[0036] Step S5: The telescopic component of the calibration mechanism retracts and resets, the motor 31 rotates in the opposite direction and resets, and the slide 31 slides in the opposite direction along the track 32 and resets, so as to facilitate the next calibration.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0038] Steps 2-3 above can be repeated to make predetermined marks at intervals, thereby performing torsion detection on the same section of cable at different time periods, improving the quality of cable torsion detection and the stability of cable transportation.

[0039] It should be noted that if the embodiments of the invention involve directional indicators such as up and down, the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the figure. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more.

[0041] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. A cable traction device for applying traction force to a cable along a cable traction route, characterized in that, include: The conveyor body (1) is provided with several units distributed along the traction route; A marking mechanism, located at one end of the first conveyor body (1), is used to make a predetermined mark on the outer wall of the cable; The detection mechanism, located at the input end of each of the conveyor bodies (1), is used to collect data on the appearance shape, position and time of the predetermined mark; And the corresponding cable images; A calibration mechanism, located between each of the detection mechanisms and the conveyor body (1), is used to rotate the cable in the opposite direction of the cable twist, so that the cable is adjusted from twist to straight. The cable passes in a straight line through the detection mechanism and correction mechanism located at the end of the conveyor body (1) at the same height, and then passes through the conveyor body (1) and the marking mechanism; The control module is located on each conveyor body (1), and is connected to the detection mechanism and the correction mechanism. It receives the data collected by the detection mechanism, compares the data with the predetermined mark, determines whether the loop cable is twisted during the traction process and the specific twisting direction and angle, and controls the correction mechanism to perform correction based on the judgment.

2. The cable traction device according to claim 1, characterized in that, Both the marking mechanism and the correction mechanism include a translation component (3), an active component (4), a support ring (5), a telescopic component, and a driven component (6). The translation component (3) is used to drive the support ring (5) and the active component (4) on it to move closer to or further away from the conveyor body (1). The driven component (6) is coaxially rotatably disposed inside the support ring (5). The active component (4) controls the start, stop, and rotation direction of the driven component (6). The telescopic component is located on the driven component (6), and its driving end moves along the radial direction of the support ring (5).

3. The cable traction device according to claim 2, characterized in that, The marking mechanism also includes a support block (12) and a marking pen. The support block (12) fixes the support ring (5). The telescopic component includes a first telescopic component (121) located on the support block (12), and a second telescopic component (122) and a third telescopic component (123) located on the driven component (6). The central axes of the second telescopic component (122) and the third telescopic component (123) are collinear and pass through the center of the support ring (5). The marking pen includes a first marking pen (124) located at the driving end of the first telescopic component (121), a second marking pen (125) located at the driving end of the second telescopic component (122), and a third marking pen (126) located at the driving end of the third telescopic component (123), which are used to control the distance between the marking pen and the cable.

4. The cable traction device according to claim 1, characterized in that, The detection mechanism includes an annular through-hole frame (131) and several color fiber optic sensors (132). The several color fiber optic sensors (132) are arranged in a circular array on the annular through-hole frame (131), and the detection paths of the several color fiber optic sensors (132) are converged, with the convergence center being the center of the annular through-hole frame (131). The annular through-hole frame (131) is also equipped with an image acquisition device.

5. The cable traction device according to claim 3, characterized in that, The correction mechanism also includes a clamping block (141), and the telescopic member also includes a telescopic member four (142) located on the correction mechanism. The clamping block (141) is located at the driving end of the telescopic member four (142) and is used to clamp and fix the cable, and drive the cable to rotate synchronously when the driven member (6) rotates.

6. The cable traction device according to claim 5, characterized in that, The telescopic component is an electric push rod.

7. The cable pulling device according to any one of claims 1 to 6, characterized in that, The marking mechanism also includes a support assembly corresponding to the number of conveyor bodies (1). The support assembly includes two support members, one of which is located on the side of the detection mechanism away from the conveyor body (1), and the other support member is located at the output end of the conveyor body (1). The support includes a column (151), a roller (152), and a bolt (153). The column (151) has several vertically distributed adjustment holes. The bolt (153) passes through the adjustment holes and is threaded to the end of the roller (152) to adjust the height of the cable.

8. The cable traction device according to claim 5, characterized in that, The translation component (3) includes a slide (31) and a track (32). The slide (31) moves along the track (32) to approach or move away from the conveyor body (1). The inner wall of the track (32) is provided with a rack (33). The slide (31) is provided with a second motor (34) and a gear transmission group (35). The output shaft of the second motor (34) is connected to the rack (33) through the gear transmission group (35).

9. The cable traction device according to claim 8, characterized in that, The driving component (4) includes a motor three (41) and a spur gear one (42). The motor three (41) is located on the slide (31). The output shaft of the motor three (41) is connected to the spur gear one (42). The spur gear one (42) controls the driven component (6).

10. The cable traction device according to claim 9, characterized in that, The driven member (6) includes an inner ring (61) and a second spur gear (62). The inner ring (61) is rotatably mounted on the support ring (5). The second spur gear (62) is sleeved at the upper edge of the support ring (5). The second spur gear (62) meshes with the first spur gear (42). The telescopic member passes through the inner ring (61), and the telescopic path is along the radius of the inner ring (61).

Images