Aerial cable deployment spanner

Abstract

The application discloses a kind of exhibition and place ground wire crossing device, it is related to crossing frame technical field, including the mounting seat for connecting crane boom top, mounting seat is fixedly connected with middle frame, the top of middle frame is hinged with bearing seat, bearing seat is rotatably connected with the frame of supporting wire on through rotary bearing, first drive mechanism is arranged on middle frame, and bearing seat is rotatably arranged on the second drive mechanism for driving frame of supporting wire to adjust azimuth, second drive mechanism includes rotary gear, drive gear, drive motor and self-locking transmission structure.The application can accurately adjust the pitch angle of frame of supporting wire, and flexibly adjust the azimuth of frame of supporting wire, realize 360 ° omnidirectional adjustment, ensure that frame of supporting wire accurately aligns ground wire exhibition path, self-locking transmission structure can avoid that frame of supporting wire is rotated when stringing process is subjected to heavy load, guarantee the stability of frame of supporting wire.

Description

Technical Field

[0001] This invention relates to the field of crossing frame technology, specifically to a device for deploying ground wires for crossing. Background Technology

[0002] In the construction of power lines, conductor and ground wire laying is one of the core procedures, and its quality and efficiency directly affect the construction progress and subsequent operational stability of the power lines. With the continuous improvement of power networks, power line construction scenarios are becoming increasingly complex. Conductor and ground wire laying often requires crossing obstacles such as highways, railways, rivers, existing power lines, and buildings. If the conductor or ground wire becomes detached, worn, or shifted during the crossing process, it can not only cause construction to stall but also damage surrounding obstacles, trigger safety accidents, and even cause existing power lines to trip and lose power, resulting in huge economic losses and safety hazards.

[0003] Currently, the crossing operations during conductor and ground wire deployment mainly employ methods such as erecting crossing frames and using cranes to suspend simple wire support devices. Among these methods, erecting crossing frames requires a significant investment of manpower, resources, and time, resulting in long construction periods and high costs. Furthermore, when crossing busy traffic sections such as highways and railways or complex terrain, the erection is difficult, has low safety, and can also disrupt surrounding traffic.

[0004] Existing simple cable support devices suspended by cranes are mostly simple in structure, relying solely on the crane boom to adjust the elevation angle of the cable support device and the crane's own slewing mechanism to adjust the orientation of the cable support device. This has obvious limitations: in some scenarios, due to the influence of streetlights, trees, buildings, etc., coupled with the large size of the crane, it is inconvenient and time-consuming to adjust the elevation angle and orientation of the cable support device through the crane's own structure, and there are significant safety hazards. Furthermore, the cable support position of the cable support device changes significantly, affecting the stress and structural stability of the cable support device. Summary of the Invention

[0005] The purpose of this invention is to provide a device for deploying ground wires to cross over, so as to solve the problem that the simple wire-supporting device suspended by the crane in the prior art is inconvenient to adjust the elevation angle and orientation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ground wire deployment and crossing device, comprising a mounting base for connecting to the top of a crane boom, a middle frame fixedly connected to the mounting base, a bearing seat hinged to the top of the middle frame, and a wire support frame rotatably connected to the bearing seat via a slewing bearing; a first drive mechanism is provided on the middle frame to drive the bearing seat to rotate and adjust the pitch angle thereon, and a second drive mechanism is provided on the bearing seat to drive the wire support frame to rotate and adjust its orientation thereon.

[0007] Furthermore, the first drive mechanism includes a screw jack, the base of which is fixedly mounted on the middle frame, and the lifting end of which is rotatably connected to a swing arm via a fisheye bearing, the other end of which is rotatably connected to a bearing seat.

[0008] Furthermore, the second drive mechanism includes a rotary gear, a drive gear, a drive motor, and a self-locking transmission structure. The rotary gear is fixedly connected to the rotating shaft of the cable support frame. The drive motor is fixedly mounted on a bracket on the bearing seat. The drive gear is coaxially fixedly connected to the output shaft of the drive motor. The drive gear transmits rotational power to the rotary gear through the self-locking transmission structure.

[0009] Furthermore, the self-locking transmission structure includes a rotating frame rotatably connected to the bearing seat and coaxial with the drive gear, a sliding plate slidably connected to the support, a rack fixedly connected to the sliding plate and meshing with the drive gear, and a locking member slidably connected to the sliding plate along the axial direction of the rotary gear. The locking member is slidably engaged with the "∧"-shaped guide groove on the sliding plate through a sliding column. The teeth on both sides of the rack are movable teeth, and the two movable teeth are elastically slidably connected to the strip body. A sliding rod is slidably connected to the rack or the sliding plate. One end of the sliding rod is eccentrically rotatably connected to the rotating frame. Two transmission gears distributed on both sides of the drive gear and meshing with the rotary gear are rotatably connected to the rotating frame. When either transmission gear meshes with the drive gear, the locking member disengages and unlocks the rotary gear.

[0010] Furthermore, a slide rail is fixedly connected to one side of the rack, and the two movable teeth are slidably connected to the slide rail by sliders. A compression spring is sleeved on the slide rail, and each end of the compression spring abuts against a movable tooth slider.

[0011] Furthermore, the locking element includes an elastic telescopic rod, the top of which is fixedly connected with a locking tooth capable of engaging with the tooth groove of the rotary gear.

[0012] Furthermore, the rotational connection position between the slide rod and the rotating frame is located on the vertical line of the line connecting the two transmission gears.

[0013] Furthermore, multiple bearing rubber rollers are rotatably connected to the wire support frame, and each bearing rubber roller is flatly spliced ​​together to form a long rubber roller. Two vertically placed side blocking rubber rollers are also provided on the wire support frame, with the two side blocking rubber rollers distributed at both ends of the long rubber roller.

[0014] Furthermore, the wire support frame is provided with two inclined guide rods, which are distributed in an inverted V-shape and each connects to the top of a side guard roller.

[0015] Furthermore, the support frame is provided with two crossbeams perpendicular to the long rubber roller, the two crossbeams are distributed at both ends of the rubber roller and multiple cables are connected between them.

[0016] In the above technical solution, the present invention provides a conductor and ground wire laying and crossing device, which is installed on the top of the crane boom via a mounting base. A first drive mechanism drives the bearing seat to rotate, which can precisely adjust the pitch angle of the conductor and ground wire support frame. A second drive mechanism drives the conductor and ground wire support frame to rotate, which can flexibly adjust the orientation of the conductor and ground wire support frame, achieving 360° all-round adjustment and ensuring that the conductor and ground wire support frame is accurately aligned with the conductor and ground wire laying path. The self-locking transmission structure can prevent the conductor and ground wire support frame from rotating under heavy load during the laying process, ensuring the stability of the conductor and ground wire support frame, while not affecting the drive motor's active drive of the conductor and ground wire support frame to rotate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention. Figure I ; Figure 2 A schematic diagram of the overall structure provided for an embodiment of the present invention. Figure II ; Figure 3 This is a schematic diagram of the structure of the wire support frame provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure between the middle frame and the bearing seat provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the self-locking transmission structure provided in the embodiment of the present invention when locked. Figure I ; Figure 6 This is a schematic diagram of the self-locking transmission structure provided in the embodiment of the present invention when locked. Figure II ; Figure 7 This is a top view of the self-locking transmission structure provided in an embodiment of the present invention when locked. Figure 8 This is a schematic diagram of the connection structure between the rotating frame and the sliding rod provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the connection structure between the rack and the slide plate provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the connection structure between the rack and the drive gear provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the connection structure of the skateboard, bracket, and locking member provided in an embodiment of the present invention. Figure I ; Figure 12This is a schematic diagram of the connection structure of the skateboard, bracket, and locking member provided in an embodiment of the present invention. Figure II ; Figure 13 This is a schematic diagram of the self-locking transmission structure provided in an embodiment of the present invention when it is unlocked and the driving gear rotates forward. Figure 14 This is a schematic diagram of the self-locking transmission structure provided in this embodiment of the invention when it is unlocked and the drive gear is reversed.

[0019] Explanation of reference numerals in the attached figures: 1. Mounting base; 2. Middle frame; 3. Bearing seat; 31. Bracket; 4. Slewing bearing; 5. Cable support frame; 51. Bearing roller; 52. Side roller; 53. Guide rod; 54. Crossbeam; 6. Screw jack; 7. Swing rod; 8. Self-locking transmission structure; 81. Rotating frame; 82. Transmission gear; 83. Slide plate; 831. Guide groove; 84. Rack; 841. Movable gear; 842. Slide rail; 843. Through groove; 844. Compression spring; 85. Slide rod; 86. Elastic telescopic rod; 87. Slider; 88. Clamping tooth; 89. Slide column; 9. Slewing gear; 10. Drive motor; 11. Drive gear; 12. Electrical box. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figures 1-14This invention provides a grounding wire deployment and crossing device, comprising a mounting base 1 for fixed connection to the top of a crane boom. A middle frame 2 is fixedly connected to the mounting base 1, and a bearing seat 3 is hinged to the top of the middle frame 2. A wire support frame 5 is rotatably connected to the bearing seat 3 via a slewing bearing 4. Multiple carrying rollers 51 are rotatably connected to the wire support frame 5. These rollers are horizontally arranged and can be spliced ​​together to form a long roller. Adjacent carrying rollers 51 are arranged side-by-side at the same height, with some roller bodies overlapping. Two vertically positioned side-blocking rollers 52 are also provided on the wire support frame 5, distributed at both ends of the long roller. When the wire support frame 5 carries multiple grounding wires, each grounding wire can be distributed onto different carrying rollers 51. Therefore, when a grounding wire being pulled drives the corresponding carrying roller 51 to rotate, it will not drive other carrying rollers 51 to rotate, avoiding sliding friction between the carrying rollers 51 and the grounding wires not yet being pulled, thus preventing damage to the grounding wires. The side-blocking rollers 52 prevent the grounding wire from falling off from both ends of the long roller. The cable support frame 5 has two inclined guide rods 53 arranged in an inverted V-shape, each connecting to the top of one of the side-blocking rollers 52. These guide rods 53 facilitate the guidance of the grounding wire onto the long roller. The cable support frame 5 has two crossbeams 54 perpendicular to the long roller, located at both ends of the roller and connected by multiple cables. This supports the grounding wire passing before and after the carrying roller 51, preventing excessive bending and damage to the grounding wire as it passes the carrying roller 51.

[0022] A first drive mechanism is provided on the middle frame 2, on which a drive bearing seat 3 rotates to adjust the pitch angle. Preferably, the first drive mechanism includes a screw jack 6, the base of which is fixedly mounted on the middle frame 2, and its lifting end is rotatably connected to a rocker arm 7 via a fisheye bearing. The other end of the rocker arm 7 is rotatably connected to the bearing seat 3. The screw jack 6 can be replaced by an electric push rod or a cylinder.

[0023] A second drive mechanism is provided on the bearing housing 3 to drive the cable support frame 5 to rotate and adjust its position. An electrical box 12 is provided on the middle frame 2 to supply power to the first and second drive mechanisms. As a preferred embodiment, the second drive mechanism includes a rotary gear 9, a drive gear 11, a drive motor 10, and a self-locking transmission structure 8. The rotary gear 9 is fixedly connected to the shaft of the cable support frame 5. The drive motor 10 is fixedly mounted on a bracket 31 on the bearing housing 3. The drive gear 11 is coaxially fixedly connected to the output shaft of the drive motor 10. The drive gear 11 transmits rotational power to the rotary gear 9 through the self-locking transmission structure 8, causing the rotary gear 9 to rotate, thereby driving the cable support frame 5 to rotate and adjust its position.

[0024] The self-locking transmission structure 8 has the function of transmitting the power of the drive gear 11 to the rotary gear 9 when the drive motor 10 starts, and also has the function of locking the rotary gear 9 when the drive motor 10 is turned off. This allows the drive motor 10 to be either a regular motor without a self-locking function or a motor with a self-locking function. However, when the cable support frame 5 is subjected to a large deflection load, it is difficult for the self-locking structure of the drive motor 10 alone to lock the cable support frame 5. The self-locking transmission structure 8 can solve this problem.

[0025] The self-locking transmission structure 8 includes components such as a rotating frame 81, a sliding plate 83, a rack 84, a sliding rod 85, and a locking element. The rotating frame 81 is rotatably connected to the bearing seat 3 and is coaxial with the drive gear 11, that is, the collar on the rotating frame is rotatably fitted onto the rotating shaft of the bearing seat 3. Two transmission gears 82 are rotatably connected to the rotating frame 81. The two transmission gears 82 are distributed on both sides of the drive gear 11 and both mesh with the rotary gear 9.

[0026] The slide plate 83 is slidably connected to the bracket 31 via a sliding edge and a sliding groove. The rack 84 is fixedly connected to the slide plate 83 and can mesh with the drive gear 11. The teeth on both sides of the rack 84 are movable teeth 841, each slidably connected to a strip-shaped body. Specifically, a slide rail 842 is fixedly connected to one side of the rack 84. The two movable teeth 841 are slidably connected to the slide rail 842 via sliders 87. A compression spring 844 is fitted on the slide rail 842, with each end of the spring abutting against a slider 87 of a movable tooth 841. Two through slots 843 are formed on the strip-shaped body, corresponding one-to-one with the two movable teeth 841. The sliders 87 on the two movable teeth 841 pass through the corresponding through slots 843, which limit the travel of the movable teeth 841. The minimum distance between the movable tooth 841 and the nearest fixed tooth on the rack 84 is one tooth pitch, and the maximum distance is two tooth pitches.

[0027] The slide rod 85 is slidably connected to the rack 84 or the slide plate 83. One end of the slide rod 85 is eccentrically rotatably connected to the rotating frame 81. The rotatable connection position between the slide rod 85 and the rotating frame 81 is located on the vertical line of the line connecting the two transmission gears 82. The sliding direction of the slide rod 85 and the sliding direction of the slide plate 83 are horizontally perpendicular to each other.

[0028] The locking element is slidably connected to the slide plate 83 along the axial direction of the drive gear 11. The locking element includes an elastic telescopic rod 86, which includes an outer rod and an inner rod that slide against each other. A compression spring is provided between the outer rod and the inner rod. When the compression spring releases its elastic force, it drives the inner rod to extend out of the outer rod. The outer rod and the slide plate 83 are slidably connected along the axial direction of the rotary gear 9. The top of the inner rod is fixedly connected with a locking tooth 88 that can engage with the tooth groove of the rotary gear 9. Preferably, there are multiple locking teeth 88, each of which is arc-shaped and distributed on the arc plate, and can engage with multiple tooth grooves of the rotary gear 9. Specifically, the locking element slides with a sliding post 89 on the outer rod and a "∧"-shaped guide groove 831 on the slide plate 83. The "∧"-shaped guide groove 831 includes two inclined grooves connected at the top. When the sliding post 89 is located at the center of the guide groove 831, the locking element is raised to its highest position, and the locking tooth 88 engages with the tooth of the rotary gear 9. When either transmission gear 82 engages with the drive gear 11, the locking element disengages to unlock the rotary gear 9. When neither transmission gear 82 engages with the drive gear 11, the locking element locks the rotary gear 9.

[0029] During non-adjustment periods, the self-locking transmission structure 8 of the cable support frame 5 is in a locked state with the rotary gear 9 locked. The drive gear 11 is located in the middle of the rack 84 (fixed tooth segment) and also on the perpendicular bisector of the line connecting the two transmission gears 82. The two movable teeth 841 of the rack 84 are separated under the elastic force of the compression spring 844. The sliding pin 89 on the locking component is located in the middle of the guide groove 831. The locking tooth 88 is in a high position and engages with the tooth groove of the rotary gear 9 to achieve the effect of locking the rotary gear 9. Figures 5-7 As shown.

[0030] In this locked state, when the drive motor 10 drives the drive gear 11 to rotate forward ( Figure 7(Clockwise direction from the perspective) The drive gear 11 meshes with the rack 84, causing the rack 84 to move to the left. On one hand, the rack 84 causes the slide plate 83 to move to the left. The slide plate 83 slides with the sliding post 89 on the locking member through the right inclined groove of the guide groove 831, causing the height of the locking member to decrease. On the other hand, the rack 84 causes the slide rod 85 to move to the left. The slide rod 85 causes the rotating frame 81 to rotate clockwise, causing the transmission gear 82 on the right side of the drive gear 11 to revolve clockwise around the rotary gear 9 and approach the drive gear 11. When the right transmission gear 82 meshes with the drive gear 11, the locking member has already descended to the point where the locking tooth 88 disengages from the tooth groove of the rotary gear 9, thereby releasing the locking member from locking the rotary gear 9. The drive gear 11 The right-hand drive gear 82 drives the rotary gear 9 to rotate clockwise to adjust the position of the cable support frame 5. At this time, the teeth of the drive gear 11 abut against the movable tooth 841 located to the right of the rack 84, and overcome the elastic force of the compression spring 844 to squeeze the movable tooth 841 towards the fixed tooth. When the right-hand movable tooth 841 and the nearest fixed tooth are at a tooth pitch, the drive gear 11 rotates and disengages from the right-hand movable tooth 841. Then, under the elastic force of the compression spring 844, the right-hand movable tooth 841 immediately moves to the right away from the fixed tooth, but is squeezed back close to the fixed tooth by the next tooth of the drive gear 11. This process repeats, thereby achieving the effect of continuously driving the rotary gear 9 to rotate clockwise. Figure 13 As shown.

[0031] When the cable support frame 5 is in position, the drive motor 10 drives the drive gear 11 to reverse the preset angle. Once the drive gear 11 reverses, the teeth of the drive gear 11 will abut against the left side of the movable tooth 841 that is pushed open by the compressed spring 844 and drive the rack 84 to move to the right. The teeth of the drive gear 11 will successively mesh with the fixed teeth of the rack 84 and continue to drive the rack 84 to move to the right until the drive gear 11 is in the middle of the rack 84 (fixed tooth segment). During the rightward movement of rack 84, on the one hand, rack 84 drives slide bar 85 to move to the right, slide bar 85 drives rotating frame 81 to rotate counterclockwise, causing right-side transmission gear 82 to revolve counterclockwise around rotary gear 9 and disengage from drive gear 11. Drive gear 11 no longer drives rotary gear 9 to rotate through transmission gear 82. On the other hand, rack 84 drives slide plate 83 to move to the right. Slide plate 83 slides with slide post 89 on locking member through right-side inclined groove of guide groove 831, causing locking member to rise in height. Locking tooth 88 engages with tooth groove of rotary gear 9, thereby relocking rotary gear 9. If, during the rising of the locking component, the locking tooth 88 is blocked by the teeth of the rotary gear 9 and cannot immediately engage with the tooth groove of the rotary gear 9, the outer rod of the elastic telescopic rod 86 will continue to be raised, the inner rod will be pressed into the outer rod, and the compression spring will be further compressed and stored. That is, the elastic telescopic rod 86 will be compressed and shortened. This situation is not a problem because once the cable support frame 5 and the rotary gear 9 deflect, the spring force will be released at the moment when the locking tooth 88 aligns with the tooth groove of the rotary gear 9, causing the inner rod and the locking tooth 88 to rise, and the locking tooth 88 to engage with the tooth groove of the rotary gear 9, thereby locking the rotary gear 9.

[0032] When the drive motor 10 drives the drive gear 11 to reverse, the rack 84, slide plate 83, and slide rod 85 move to the right. The slide plate 83 engages with the slide column 89 through the inclined groove on the left side of the guide groove 831, causing the locking element to descend and releasing the rotary gear 9 from its lock. At the same time, the slide rod 85 drives the rotating frame 81 to rotate counterclockwise, causing the left transmission gear 82 to revolve around the rotary gear 9 until it meshes with the drive gear 11. Thus, the drive gear 11 drives the rotary gear 9 to continuously reverse through the left transmission gear 82. Figure 14 As shown. After the cable support frame 5 is adjusted to the correct position, the self-locking transmission structure 8 can be returned to the locked state.

[0033] This invention is mounted on the top of the crane boom via a mounting base 1. A first drive mechanism drives the bearing seat 3 to rotate, precisely adjusting the pitch angle of the cable support frame 5. A second drive mechanism drives the cable support frame 5 to rotate, flexibly adjusting its orientation to achieve 360° omnidirectional adjustment, ensuring the cable support frame 5 is precisely aligned with the conductor laying path. The self-locking transmission structure 8 prevents the cable support frame 5 from rotating under heavy loads during cable laying, ensuring its stability. Simultaneously, the drive motor 10 actively drives the cable support frame 5 to adjust its orientation by rotating it forward and backward.

[0034] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for deploying ground wires, characterized in that, It includes a mounting base for connecting to the top of the crane boom, a middle frame is fixedly connected to the mounting base, a bearing seat is hinged to the top of the middle frame, and a cable support frame is rotatably connected to the bearing seat via a slewing bearing. The middle frame is equipped with a first drive mechanism that drives the bearing housing to rotate and adjust the pitch angle, and the bearing housing is equipped with a second drive mechanism that drives the cable support frame to rotate and adjust the orientation.

2. The device for deploying ground wires according to claim 1, characterized in that, The first drive mechanism includes a screw jack, the base of which is fixedly mounted on the middle frame, and the lifting end of which is rotatably connected to a swing arm via a fisheye bearing. The other end of the swing arm is rotatably connected to a bearing seat.

3. The device for deploying ground wires according to claim 1, characterized in that, The second drive mechanism includes a rotary gear, a drive gear, a drive motor, and a self-locking transmission structure. The rotary gear is fixedly connected to the rotating shaft of the cable support frame. The drive motor is fixedly mounted on a bracket on a bearing seat. The drive gear is coaxially fixedly connected to the output shaft of the drive motor. The drive gear transmits rotational power to the rotary gear through the self-locking transmission structure.

4. The device for deploying ground wires according to claim 3, characterized in that, The self-locking transmission structure includes a rotating frame rotatably connected to a bearing seat and coaxial with the drive gear, a sliding plate slidably connected to a support, a rack fixedly connected to the sliding plate and meshing with the drive gear, and a locking member slidably connected to the sliding plate along the axial direction of the rotary gear. The locking member is slidably engaged with the "∧"-shaped guide groove on the sliding plate via a sliding pin. The teeth on both sides of the rack are movable teeth, and the two movable teeth are elastically slidably connected to the strip body. A sliding rod is slidably connected to the rack or the sliding plate, and one end of the sliding rod is eccentrically rotatably connected to the rotating frame. Two transmission gears distributed on both sides of the drive gear and meshing with the rotary gear are rotatably connected to the rotating frame. When either transmission gear meshes with the drive gear, the locking member disengages and unlocks the rotary gear.

5. A device for deploying ground wires according to claim 4, characterized in that, A slide rail is fixedly connected to one side of the rack. The two movable teeth are slidably connected to the slide rail by sliders. A compression spring is sleeved on the slide rail, and each end of the compression spring abuts against a movable tooth slider.

6. A device for deploying ground wires according to claim 4, characterized in that, The locking element includes an elastic telescopic rod, the top of which is fixedly connected with a locking tooth that can engage with the tooth groove of the rotary gear.

7. A device for deploying ground wires according to claim 4, characterized in that, The rotatable connection between the slide bar and the rotating frame is located on the vertical line of the line connecting the two transmission gears.

8. A device for deploying ground wires according to claim 1, characterized in that, Multiple bearing rubber rollers are rotatably connected to the support frame. Each bearing rubber roller is laid flat and spliced ​​together to form a long rubber roller. Two vertically placed side blocking rubber rollers are also provided on the support frame, with the two side blocking rubber rollers distributed at both ends of the long rubber roller.

9. A device for deploying ground wires according to claim 8, characterized in that, The wire support frame is provided with two inclined guide rods, which are distributed in an inverted V-shape and each connects to the top of a side guard roller.

10. A device for deploying ground wires according to claim 8, characterized in that, The support frame is provided with two crossbeams perpendicular to the long rubber roller. The two crossbeams are distributed at both ends of the rubber roller and are connected by multiple cables.

Images