Movable tension-adjustable ground climbing pay-off mechanism

Abstract

The utility model relates to the field of wire passive pay-off, in particular to a movable tension-adjustable ground climbing pay-off mechanism which comprises a pay-off assembly, the pay-off assembly comprises a rack and a pay-off barrel arranged on the rack, a wire is wound on the pay-off barrel, one end of the wire extends to a wiring end of equipment, two rotating rollers are rotatably mounted on the rack, and the two rotating rollers are rotatably mounted on the rack. The two rotating rollers are symmetrically distributed on the two sides of the pay-off barrel in the radial direction of the pay-off barrel, the pay-off barrel is placed on the two rotating rollers in a lap joint mode and achieves transmission through friction force, and at least one rotating roller is connected with a brake. Through cooperative arrangement of the rotating roller and the brake, in the pay-off process, the brake can adjust the friction force between the rotating roller and the end plate, so that the tension during wire pay-off is adjusted, and compared with a traditional belt friction braking mode, the braking torque is quantified, and monitoring is easy.

Description

Technical Field

[0001] The present application relates to the technical field of passive wire pay-off, and in particular to a mobile, tension-adjustable ground-climbing pay-off mechanism. Background Art

[0002] The pay-off rack is a commonly used auxiliary equipment when laying wires. In order to reduce the occupied space, the wires are wound on the pay-off drum when idle. During construction, the pay-off drum with the wires wound on it needs to be transferred to the working area, and a pulling force is applied to one end of the wire. The friction between the wire and the pay-off drum drives the pay-off drum to rotate, thereby realizing passive wire laying.

[0003] The problem with the related technology is that most of the current wire-releasing devices are not flexible and often have pulling problems, resulting in uneven wire pulling force during actual use, or the wire is pulled out excessively and rubs against other parts of the equipment. Secondly, the size of the equipment itself is limited. When paying out wires over long distances, the wires are prone to swinging left and right, causing the position of the wire and the connection end of the equipment to constantly change. Utility Model Content

[0004] In order to facilitate the adjustment of wire tension during the wire pay-off process and reduce the impact of wire deviation during long-distance wire pay-off, the present application provides a mobile, tension-adjustable ground-climbing wire pay-off mechanism.

[0005] The present application provides a mobile, tension-adjustable ground-climbing wire-laying mechanism that adopts the following technical solution:

[0006] A mobile, tension-adjustable, ground-climbing wire-paying mechanism comprises a wire-paying assembly, wherein the wire-paying assembly comprises a frame and a wire-paying drum arranged on the frame, a wire is wound around the wire-paying drum and one end extends to a connection terminal of the device, two rotating rollers are rotatably mounted on the frame, the two rotating rollers are symmetrically distributed on both sides of the wire-paying drum along the radial direction of the wire-paying drum, the wire-paying drum is placed on the two rotating rollers and transmission is achieved through friction, and at least one of the rotating rollers is connected to a brake.

[0007] By adopting the above technical solution, the pay-off drum is placed on the rotating roller. During the pay-off process, the wire is pulled by the pulling force to drive the pay-off drum to rotate, and the friction between the pay-off drum and the rotating roller drives the rotating roller to rotate. The brake can adjust the friction between the pay-off drum and the rotating roller, thereby realizing the adjustment of the tension during the pay-off process.

[0008] Optionally, it also includes a yaw assembly, which is arranged on the path where the wire extends to the wiring terminal of the equipment, and the yaw assembly includes an eccentric rotating seat, to which a bracket is fixedly connected, and a rotating guide wheel is rotatably mounted on the bracket, and a guide groove cooperating with the wire is formed on the rotating guide wheel, and the rotating axis of the eccentric rotating seat is arranged on the side of the rotating guide wheel away from the wire-releasing assembly.

[0009] By adopting the above technical solution, during the long-distance pay-off process, the position of the wire unwound on the pay-off drum will swing left and right. During the swinging of the wire, the part that bypasses the rotating guide wheel will drive the eccentric rotating seat to rotate around its rotating axis, so that the wire between the pay-off assembly and the yaw assembly remains yawed, while the position of the wire extending from the yaw assembly remains unchanged.

[0010] Optionally, a rotatable wire passing guide wheel is also installed on the eccentric rotating seat, the rotation axis of the wire passing guide wheel is parallel to the rotation axis of the rotating guide wheel, and the wire passing guide wheel is arranged on one side below the rotating guide wheel.

[0011] By adopting the above technical solution, the lower end of the wire passing through the rotating guide wheel bypasses the rotating guide wheel, so that the wire below does not touch the rotating guide wheel, thereby avoiding scratching of the wire during the deflection of the rotating guide wheel and causing wire wear.

[0012] Optionally, the pay-off reel includes a cylinder body and end plates arranged at both ends of the cylinder body, the outer diameters of the two end plates are the same and larger than the outer diameter of the cylinder body, and the outer circumferential surfaces of the end plates are in contact with the outer circumferential surface of the rotating roller.

[0013] By adopting the above technical solution, the rotating roller provides support for the end plate connected to it, so that the wire reel can be placed on the rotating roller. When the wire is pulled to drive the drum to rotate, the end plate rotates with the drum. When the end plate rotates, the rotating roller is driven to rotate through friction.

[0014] Optionally, both ends of the outer circumference of the rotating roller are provided with limiting plates, and the portions of the two end plates in contact with the outer circumference of the rotating roller are located between the two limiting plates.

[0015] By adopting the above technical solution, the limiting plate is used to limit the range of axial movement of the pay-off drum along the rotating roller, so that the pay-off drum is always kept on the rotating roller.

[0016] Optionally, a roller shaft is connected inside the rotating roller, and the roller shaft is rotatably mounted on the frame through a bearing. The brake is detachably mounted on one side of the frame, and one end of the roller shaft extends toward the brake and cooperates with the brake.

[0017] By adopting the above technical solution, the brake cooperates with the roller shaft to limit the rotation of the roller shaft, thereby limiting the rotation of the rotating roller.

[0018] Optionally, opposite waist-shaped holes are provided on both side surfaces of the frame, the waist-shaped holes extend in a horizontal direction, and both ends of the roller shaft extend into adjacent waist-shaped holes respectively.

[0019] By adopting the above technical solution, the setting of the waist-shaped hole allows the position of the roller on the frame to be adjusted horizontally, that is, the distance between the two rotating rollers can be adjusted, thereby providing support for pay-off reels of different sizes.

[0020] Optionally, the brake is a hysteresis brake or a magnetic powder brake.

[0021] By adopting the above technical solution, the setting of the hysteresis brake or the magnetic powder brake has the function of adjustable braking torque, and the specific adjustment of the tension can be achieved by adjusting the input voltage, and the digital quantitative control is easy to monitor.

[0022] Optionally, a plurality of brake casters are installed at the lower end of the frame, and the plurality of brake casters are evenly distributed around the frame.

[0023] By adopting the above technical solution, the setting of the brake caster allows the line-laying assembly to be moved anywhere in a flat working environment, increasing the utilization rate of the equipment. In addition, when performing the line-laying work, the caster can be locked by braking to keep the equipment fixed.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Through the coordinated setting of the rotating roller and the brake, during the wire pay-off process, the brake can adjust the friction between the rotating roller and the end plate, thereby adjusting the tension of the wire during pay-off. Compared with the traditional belt friction braking method, the braking torque can be quantified and easy to monitor;

[0026] 2. Through the setting of the deflection assembly, the wire led out from the pay-off assembly bypasses the rotating guide wheel and the wire-passing guide wheel. As the position of the wire unwound on the pay-off drum changes, part of the wire between the pay-off assembly and the deflection assembly will deflect left and right. The wire drives the rotating guide wheel and the eccentric rotating seat to rotate, so that the rotating guide wheel deflects left and right with the wire, while the position of the part of the wire passing the rotating guide wheel does not change much, ensuring the stability of the pay-off process. The setting of the wire-passing guide wheel reduces the friction between the wire and the rotating guide wheel, thereby protecting the wire well. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram of the structure explosion of the wire-paying assembly according to an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the main structure of the embodiment of the present application from the front.

[0030] Figure 4 It is a schematic diagram of the main side structure of an embodiment of the present application.

[0031] Figure numerals: 1. frame; 2. wire reel; 21. cylinder body; 22. end plate; 3. eccentric rotating seat; 4. bracket; 5. rotating guide wheel; 6. guide groove; 7. wire guide wheel; 8. rotating roller; 9. brake; 10. roller shaft; 11. waist-shaped hole; 12. brake caster; 13. limit plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The present application embodiment discloses a mobile, tension-adjustable ground-climbing wire-laying mechanism. Figure 1 A mobile, tension-adjustable, ground-climbing wire-paying mechanism comprises a wire-paying assembly and a deflection assembly. The wire is led out from the wire-paying assembly, passes through the deflection assembly and extends to the wire inlet end of the equipment. The deflection assembly is used to control the partial position of the wire close to the wire inlet end of the equipment when the wire is paid out over a long distance.

[0034] Reference Figure 1 and Figure 2 The wire-releasing assembly includes a frame 1 arranged on a working base surface, and a plurality of brake casters 12 are installed on one side of the frame 1 close to the base surface, so that the frame 1 can be flexibly moved on the working base surface, and the brake casters 12 can be locked when the wire-releasing action is performed to fix the position of the frame 1.

[0035] A chamber that passes upward is formed in the middle of the frame 1, and seat-type bearings are installed on both sides of the chamber in the width direction. There are four seat-type bearings, and the four seat-type bearings form a group of two. A roller shaft 10 is installed between the two seat-type bearings in the same group. The roller shaft 10 extends along the width direction of the chamber. A rotating roller 8 is sleeved on the outside of the roller shaft 10. The rotating roller 8 and the roller shaft 10 can rotate synchronously, thereby forming a structure in which two rotating rollers 8 in the same plane are rotatably installed in the chamber.

[0036] The pay-off assembly also includes a pay-off drum 2 placed on two rotating rollers 8. The pay-off drum 2 includes a cylinder 21 for winding the wire, and end plates 22 arranged at both ends of the cylinder 21 and fixedly connected to the cylinder 21. The cylinder 21 and the end plates 22 are coaxially arranged and the outer diameter of the end plates 22 is larger than the outer diameter of the cylinder 21. The center axis of the pay-off drum 2 is parallel to the center axis of the rotating roller 8. The above-mentioned pay-off drum 2 is placed on the rotating roller 8 in the following manner: the outer peripheral surface of the end plate 22 is in contact with the outer peripheral surface of the rotating roller 8. When the wire wound on the cylinder 21 is unwound, the staff applies a pulling force to the end of the wire leading out of the cylinder 21. After the wire is subjected to the pulling force, it acts on the cylinder 21, causing the cylinder 21 to rotate to perform the pay-off action.

[0037] During the rotation of the cylinder 21, the end plate 22 rotates synchronously with the cylinder 21, and the friction between the end plate 22 and the rotating roller 8 can drive the rotating roller 8 to rotate. Furthermore, a brake 9 is installed on one side of the frame 1, and the brake 9 cooperates with at least one of the rotating rollers 8 to limit the rotation of the rotating roller 8. When the rotating roller 8 is restricted from rotating, the friction between it and the end plate 22 of the pay-off drum 2 becomes larger, thereby adjusting the wire tension during the pay-off process. It should be noted that in order to prevent the pay-off drum 2 from detaching from the rotating roller 8, limit plates 13 are also provided at both ends of the rotating roller 8.

[0038] Specifically, a hole is opened on the frame 1, and the roller shaft 10 inserted in the rotating roller 8 extends through the hole toward the direction close to the brake 9. The brake 9 cooperates with the roller shaft 10 to achieve the control of the rotating roller 8. Preferably, the brake 9 is a hysteresis brake 9 or a magnetic powder brake 9. The specific structure and braking principle of the hysteresis brake 9 or the magnetic powder brake 9 are common knowledge and are not described here. It should be noted that the device should also be equipped with a controller for controlling the current input to the magnetic powder brake 9 or the hysteresis brake 9. The controller is provided with a display panel, which can display tension-related parameters that vary with the input current.

[0039] Preferably, the hole body opened on the frame 1 is a waist-shaped hole 11, which extends horizontally along the length direction of the frame 1. There are four waist-shaped holes 11, which correspond to the two ends of the two rotating rollers 8 one by one. The four seat-shaped bearings are installed at the waist-shaped holes 11, and the roller shaft 10 matched with each seat-shaped bearing extends into the waist-shaped holes 11. According to the change of the size of the pay-off drum 2, the installation position of the seat-shaped bearing at the waist-shaped hole 11 can be adjusted, thereby adjusting the distance between the two rotating rollers 8 to meet the support needs of pay-off drums 2 of different sizes.

[0040] Reference Figure 3The deflection assembly is arranged on the side of the pay-off assembly close to the terminal of the device, and includes an eccentric rotating seat 3. The eccentric rotating seat 3 has a horizontal support plate and an eccentric shaft connected to the support plate. The extension direction of the eccentric shaft is perpendicular to the plane where the support plate is located, so that the support plate can rotate in the horizontal plane. The deflection assembly also includes a bracket 4 arranged on the eccentric rotating seat 3. The bracket 4 has two support rods. A rotating guide wheel 5 is rotatably installed between the two support rods. The wire material led out from the pay-off assembly passes around the bottom of the rotating guide wheel 5 and extends upward. Preferably, a guide groove 6 adapted to the wire material is provided on the rotating guide wheel 5.

[0041] With the above structure, during the long-distance pay-off of the wire, as the pay-off drum 2 rotates, the pay-off position of the wire on the drum body 21 changes laterally, so the wire between the pay-off assembly and the deflection assembly will deflect left and right. When a pulling force is applied to the wire, the left and right deflection of the wire can drive the eccentric rotating seat 3 to rotate accordingly.

[0042] It should be noted that the eccentric shaft connected to the support plate should be arranged on the side of the rotating guide wheel 5 away from the wire-paying assembly, that is, when the rotating guide wheel 5 swings with the eccentric rotating seat 3, the swing amplitude of the side of the rotating guide wheel 5 close to the eccentric shaft is extremely small, so that the position of the part of the wire that extends to the terminal of the equipment after bypassing the rotating guide wheel 5 will not change significantly, thereby improving the stability of the wire during wire pay-off.

[0043] Further, see Figure 4 A wire passing guide wheel 7 is also installed on the eccentric rotating seat 3. The central axis of the wire passing guide wheel 7 is parallel to the central axis of the rotating guide wheel 5. The wire passing guide wheel 7 is arranged on one side below the rotating guide wheel 5. When the wire passes through the deflection assembly, part of the wire bypasses from under the wire passing guide wheel 7, so that a gap is left between the wire passing through the rotating guide wheel 5 and the rotating guide wheel 5, which can avoid repeated friction with the wire during the deflection of the rotating guide wheel 5, causing the problem of wire wear.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mobile, tension-adjustable, ground-climbing wire-paying mechanism, comprising a wire-paying assembly, wherein the wire-paying assembly comprises a frame (1) and a wire-paying drum (2) disposed on the frame (1), wherein a wire is wound around the wire-paying drum (2) and one end of the wire extends toward a wiring terminal of the device, wherein: Two rotating rollers (8) are rotatably mounted on the frame (1); the two rotating rollers (8) are symmetrically distributed on both sides of the pay-off drum (2) along the radial direction of the pay-off drum (2); the pay-off drum (2) is placed on the two rotating rollers (8) and transmission is achieved through friction; at least one of the rotating rollers (8) is connected to a brake (9).

2. The mobile tension-adjustable ground-climbing wire-paying mechanism according to claim 1, characterized in that: The device also includes a deflection assembly, which is arranged on a path where the wire extends to a terminal of the device, and includes an eccentric rotating seat (3), to which a bracket (4) is fixedly connected, and a rotating guide wheel (5) is rotatably mounted on the bracket (4), and a guide groove (6) is formed on the rotating guide wheel (5) for matching with the wire, and a rotating shaft of the eccentric rotating seat (3) is arranged on a side of the rotating guide wheel (5) away from the wire-releasing assembly.

3. The mobile ground-climbing wire-paying mechanism with adjustable tension according to claim 2 is characterized by: A rotatable wire guide wheel (7) is also mounted on the eccentric rotating seat (3); the rotation axis of the wire guide wheel (7) is parallel to the rotation axis of the rotating guide wheel (5); and the wire guide wheel (7) is arranged on one side below the rotating guide wheel (5).

4. The mobile ground-climbing wire-paying mechanism with adjustable tension according to claim 1, characterized in that: The pay-off reel (2) comprises a cylinder body (21) and end plates (22) arranged at both ends of the cylinder body (21); the outer diameters of the two end plates (22) are the same and larger than the outer diameter of the cylinder body (21); and the outer circumferential surfaces of the end plates (22) are in contact with the outer circumferential surface of the rotating roller (8).

5. The mobile ground-climbing wire-paying mechanism with adjustable tension according to claim 4 is characterized by: Limiting plates (13) are provided at both ends of the outer circumference of the rotating roller (8), and the portions of the two end plates (22) that are in contact with the outer circumference of the rotating roller (8) are located between the two limiting plates (13).

6. The mobile ground-climbing wire-paying mechanism with adjustable tension according to claim 1, characterized in that: A roller shaft (10) is connected inside the rotating roller (8), and the roller shaft (10) is rotatably mounted on the frame (1) via a bearing. The brake (9) is detachably mounted on one side of the frame (1), and one end of the roller shaft (10) extends toward the brake (9) and cooperates with the brake (9).

7. The mobile tension-adjustable ground-climbing wire-paying mechanism according to claim 6, characterized in that: Opposite waist-shaped holes (11) are provided on both side surfaces of the frame (1), the waist-shaped holes (11) extend in a horizontal direction, and the two ends of the roller shaft (10) extend into adjacent waist-shaped holes (11) respectively.

8. The mobile ground-climbing wire-paying mechanism with adjustable tension according to claim 1, characterized in that: The brake (9) is a hysteresis brake or a magnetic powder brake.

9. The mobile ground-climbing wire-paying mechanism with adjustable tension according to claim 1, characterized in that: A plurality of brake casters (12) are installed at the lower end of the frame (1), and the plurality of brake casters (12) are evenly distributed around the frame (1).

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