Cutting and tensioning device and method for field insulation wrapping of 35kV overhead line

Abstract

The invention discloses a cutting and tensioning device and method for field insulation wrapping of a 35kV overhead line, and the device comprises a clamping and tensioning mechanism, a cutting adjustment mechanism and an optical cable body, the clamping and tensioning mechanism comprises a bearing bottom plate, and the two sides of the top of the bearing bottom plate are fixedly connected with side supporting plates through fixing plates. The invention relates to the technical field of line cutting. According to the cutting and tensioning device and method for field insulation wrapping of the 35kV overhead line, a clamping and tensioning mechanism and a cutting and adjusting mechanism are used in a combined mode, an optical cable body can be clamped, straightened and tensioned through a tooth clamping plate due to the arrangement of the structures, and then an insulating layer of the optical cable body is rapidly cut through a second cutting knife and a first cutting knife; according to the utility model, two-side girdling and final transverse cutting are carried out, so that an insulating layer on the surface is rapidly stripped, and then the tightened optical cable body is used for installing an insulating knot, so that the operation efficiency is improved, and meanwhile, the safety is also ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of line cutting, and in particular to a cutting and tensioning device and method for on-site insulation wrapping of a 35kV overhead line. Background Art

[0002] Overhead optical cables are installed on utility poles. These cables can utilize existing overhead open-wire lines, saving construction costs and shortening the construction period. Hanging from utility poles, overhead optical cables must be adaptable to various natural environments. They are generally used for long-distance, Class II or lower lines, and are suitable for dedicated network optical cable lines or certain localized areas.

[0003] When installing existing overhead optical cables on a communication rack, they need to be connected to cables installed in other directions. This connection method requires cutting the outer insulation layer and then wrapping the connection inside the insulating shell. The insulating shell protects the optical cable joints. However, the position of the optical cable needs to be measured in advance before it is installed. Then, the insulation layer of the optical cable needs to be stripped and the insulating shell needs to be installed on site. However, the existing glass method is to directly use a circular cutter to rotate around the optical cable in a circle to cut the insulation layer, and then use the knife to cut horizontally until the insulation layer is cut. This method makes the operation too cumbersome and laborious, with low efficiency and certain risks. At the same time, whether it is cutting or the subsequent installation of the insulating shell, the optical cable is loose and bent, making the operation inconvenient. Therefore, a 35kV overhead line on-site insulation wrapping cutting and tensioning device is designed to improve work efficiency to solve such defects. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a cutting and tensioning device and method for on-site insulation wrapping of a 35kV overhead line, which solves the problem of cumbersome operation and low efficiency when installing insulation knots on-site in existing overhead optical cables.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines, including a clamping and tensioning mechanism, a cutting and adjusting mechanism and an optical cable body, the clamping and tensioning mechanism including a load-bearing base plate, both sides of the top of the load-bearing base plate are fixedly connected with side support plates through fixing plates, the cutting and adjusting mechanism is installed between the two side support plates, and the optical cable body is arranged on the top of the clamping and tensioning mechanism.

[0006] Preferably, a first guide groove is provided at the front and rear of one side of the side support plate, a guide rod is slidably installed on the inner side of the first guide groove, a threaded sleeve is fixedly connected between the left ends of the two guide rods, the inner side of the threaded sleeve is threadedly connected to the first threaded rod, and one end of the first threaded rod is rotatably connected to one side of the side support plate through a bearing member, and the opposite ends of the guide rods on both sides are fixedly connected to an arc-shaped slider.

[0007] Preferably, a rotating cylinder is rotatably connected between the two arc-shaped sliders on the same side, and a ring-shaped sliding groove for cooperating with the arc-shaped slider is provided on the surface of the rotating cylinder. A first recess extending through to the other side is provided on one side of the rotating cylinder, and the optical cable body is located on the inner side of the first recess. A cutting bottom groove connected to the first recess is provided on the bottom of the rotating cylinder, and a rectangular insertion frame is fixedly connected to the top of the rotating cylinder, and a second recess is provided on the top of the side support plate.

[0008] Preferably, the bottom of the left rotating drum is fixedly connected to a guide frame via a fixing plate, and the bottom of the right rotating drum is fixedly connected to a guide rod used in conjunction with the guide frame via a fixing plate.

[0009] Preferably, a sliding block is slidably installed on the inner side of the guide frame and is used in conjunction with the guide rod. The bottom of the sliding block is threadedly connected to a second threaded rod through an opening. The top of the second threaded rod is rotatably connected to a first cutting knife through a bearing, and the first cutting knife is located on the inner side of the cutting bottom groove.

[0010] Preferably, the top of the load-bearing base plate is fixedly connected to a dual-axis motor through a bracket, and the two output shafts of the dual-axis motor are fixedly connected to a third threaded rod through a coupling, one end of the third threaded rod passes through the side support plate and extends to one side of the side support plate, and the surface of the third threaded rod is threadedly connected to a threaded barrel, and a second guide groove is provided on one side of the side support plate, and a transverse guide rod is slidably installed on the inner side of the second guide groove, and one end of the transverse guide rod is fixedly connected to the threaded barrel.

[0011] Preferably, the top end of the threaded barrel is fixedly connected to a square frame via a fixing plate, the inner side of the square frame is rotatably connected to a fourth threaded rod via an opening, and the front and rear portions of the surface of the fourth threaded rod are both threadedly connected to toothed clamps.

[0012] Preferably, the cutting adjustment mechanism includes two flip frames, and the flip frames are located on the upper part of the load-bearing base plate. A handle is fixedly connected between the two flip frames. A hollow frame used in conjunction with the rectangular insertion frame is slidably installed on the inner side of the flip frame. A second cutting knife is slidably installed on the inner side of the hollow frame. The top of the hollow frame is threadedly connected to a fifth threaded rod through an opening, and the bottom end of the fifth threaded rod is rotatably connected to the top of the second cutting knife through a bearing.

[0013] The present invention also discloses a cutting and tensioning method for on-site insulation wrapping of a 35kV overhead line, which specifically comprises the following steps: S1. Optical cable installation: Process the optical cable body and install it to the inner side of the second notch and the first notch, and clamp and tighten it with the toothed clamping plate; S2, optical cable cutting: using the first cutting knife and the second cutting knife to cut the insulation layer; S3. Optical cable installation: Install and protect the insulating shell and the stripped optical cable body.

[0014] Beneficial effects The present invention provides a cutting and tensioning device and method for on-site insulation wrapping of 35kV overhead lines. Compared with existing technologies, it has the following advantages: (1) The cutting and tensioning device and method for on-site insulation wrapping of 35kV overhead lines, by combining the clamping and tightening mechanism and the cutting and adjusting mechanism, can use the toothed clamping plate to clamp and straighten the optical cable body, and then use the second cutting knife and the first cutting knife to quickly cut the insulation layer of the optical cable body on both sides and finally cut it horizontally, so as to quickly peel off the surface insulation layer, and then use the tightened optical cable body to install the insulation knot, which not only improves the operation efficiency but also ensures safety.

[0015] (2) The cutting and tensioning device and method for on-site insulation wrapping of 35kV overhead lines are characterized by installing a circular drum on one side of the side support plate using a guide rod and an arc-shaped slider, and using it in conjunction with a guide frame and a hollow frame. The arrangement of these structures can adjust the positions of the two circular drums by rotating the first threaded rod after the optical cable body is installed, and can also adjust the positions of the first cutting knife and the second cutting knife, thereby facilitating the cutting of the insulation layer and being suitable for cutting of different lengths, effectively improving the overall practicality and functionality of the equipment.

[0016] (3) The cutting and tensioning device and method for on-site insulation wrapping of 35kV overhead lines are characterized by installing an arc-shaped slider at one end of the guide rod and providing an annular slide groove for use with the arc-shaped slider on the surface of the circular drum, which is used in conjunction with a rectangular plug-in frame. The arrangement of these structures can utilize the docking of the hollow frame with the rectangular plug-in frame, and then utilize the docking of the arc-shaped slider with the annular slide groove to simultaneously drive the two circular drums to rotate synchronously, thereby ensuring that the two sides of the surface of the optical cable body are synchronously cut in an annular manner, making the cutting stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2Schematic diagram of the first threaded rod, arc-shaped slider and rotating drum structure of the present invention; Figure 3 A schematic diagram of the rectangular insert frame, cutting bottom groove and guide frame structure of the present invention; Figure 4 A schematic diagram of the structure of the sliding block, the second threaded rod and the first cutting blade of the present invention; Figure 5 It is a schematic diagram of the structure of the rotary drum, the annular chute and the first recess of the present invention; Figure 6 A schematic diagram of the second notch, the first guide groove and the dual-axis motor structure of the present invention; Figure 7 It is a schematic diagram of the square frame, the fourth threaded rod and the toothed clamping plate structure of the present invention; Figure 8 A schematic diagram of the cutting adjustment mechanism structure of the present invention; Figure 9 It is a schematic diagram of the hollow frame, the fifth threaded rod and the second cutting knife structure of the present invention.

[0018] In the figure: 1. Clamping and tensioning mechanism; 2. Cutting and adjusting mechanism; 3. Optical cable body; 101. Load-bearing base plate; 102. Side support plate; 103. Guide rod; 104. Threaded sleeve; 105. First threaded rod; 106. Arc-shaped slider; 107. Rotating cylinder; 108. Annular slide; 109. First notch; 110. Rectangular insert frame; 111. Cutting bottom groove; 112. Guide frame; 113. Guide insert rod; 114. Sliding block; 115. Second threaded rod; 116. First cutting blade; 117. Second notch; 118. First guide groove; 119. Dual-axis motor; 120. Third threaded rod; 121. Threaded barrel; 122. Square frame; 123. Fourth threaded rod; 124. Toothed splint; 125. Second guide groove; 126. Horizontal guide rod; 201. Flip frame; 202. Handle; 203. Hollow frame; 204. Fifth threaded rod; 205. Second cutting blade. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-9 , the present invention provides a technical solution: a cutting and tensioning device for on-site insulation wrapping of a 35kV overhead line, comprising a clamping and tensioning mechanism 1, a cutting and adjusting mechanism 2 and an optical cable body 3; Please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, showing the overall structure of the clamping and tightening mechanism 1, the clamping and tightening mechanism 1 includes a load-bearing base plate 101, both sides of the top of the load-bearing base plate 101 are fixedly connected to the side support plates 102 through a fixing plate, the cutting and adjusting mechanism 2 is installed between the two side support plates 102, the optical cable body 3 is arranged on the top of the clamping and tightening mechanism 1, the front and rear parts of one side of the side support plates 102 are provided with a first guide groove 118, the inner side of the first guide groove 118 is slidably installed with a guide rod 103, a threaded sleeve 104 is fixedly connected between the left ends of the two guide rods 103, the inner side of the threaded sleeve 104 is threadedly connected to the first threaded rod 105, and one end of the first threaded rod 105 is rotatably connected to one side of the side support plate 102 through a bearing member, and the guide rods on both sides are fixedly connected to the left ends of the two guide rods 103. The ends opposite to the rod 103 are fixedly connected with an arc-shaped slider 106, and a rotating drum 107 is rotatably connected between the two arc-shaped sliders 106 on the same side. The surface of the rotating drum 107 is provided with an annular slide groove 108 used in conjunction with the arc-shaped slider 106. There is damping between the arc-shaped slider 106 and the annular slide groove 108, so that the rotating drum 107 will not rotate easily by itself and needs to be rotated manually. One side of the rotating drum 107 is provided with a first notch 109 that runs through to the other side, and the optical cable body 3 is located on the inner side of the first notch 109. The bottom of the rotating drum 107 is provided with a cutting bottom groove 111 connected to the first notch 109. The top of the rotating drum 107 is fixedly connected to a rectangular plug-in frame 110, and the top of the side support plate 102 is fixedly connected to the top of the side support plate 102. A second notch 117 is provided on the bottom of the left circular rotating drum 107, and a guide frame 112 is fixedly connected to the bottom of the right circular rotating drum 107 through a fixed plate. A guide rod 113 used in conjunction with the guide frame 112 is fixedly connected to the bottom of the right circular rotating drum 107 through a fixed plate. A sliding block 114 used in conjunction with the guide rod 113 is slidably installed on the inner side of the guide frame 112. The bottom of the sliding block 114 is threadedly connected to a second threaded rod 115 through an opening. The top of the second threaded rod 115 is rotatably connected to a first cutting knife 116 through a bearing. The first cutting knife 116 is located on the inner side of the cutting bottom groove 111. The top of the load-bearing bottom plate 101 is fixedly connected to a dual-axis motor 119 through a bracket. The dual-axis motor 119 is a servo motor. The two output shafts of the shaft motor 119 are fixedly connected to the third threaded rod 120 through a coupling. One end of the third threaded rod 120 passes through the side support plate 102 and extends to one side of the side support plate 102. The surface of the third threaded rod 120 is threadedly connected to a threaded cylinder 121. A second guide groove 125 is provided on one side of the side support plate 102. A transverse guide rod 126 is slidably installed on the inner side of the second guide groove 125, and one end of the transverse guide rod 126 is fixedly connected to the threaded cylinder 121. The top of the threaded cylinder 121 is fixedly connected to the square frame 122 through a fixed plate. The inner side of the square frame 122 is rotatably connected to the fourth threaded rod 123 through an opening. The front and rear parts of the surface of the fourth threaded rod 123 are threadedly connected to a toothed splint 124.

[0021] Please refer to Figure 8 and Figure 9 , showing the overall structure of the cutting adjustment mechanism 2, the cutting adjustment mechanism 2 includes two flip frames 201, and the flip frame 201 is located on the upper part of the load-bearing base plate 101, and a handle 202 is fixedly connected between the two flip frames 201, and a hollow frame 203 used in conjunction with the rectangular insertion frame 110 is slidably installed on the inner side of the flip frame 201, and a second cutting knife 205 is slidably installed on the inner side of the hollow frame 203, and the top of the hollow frame 203 is threadedly connected to the fifth threaded rod 204 through an opening, and the bottom end of the fifth threaded rod 204 is rotatably connected to the top of the second cutting knife 205 through a bearing.

[0022] The present invention also discloses a cutting and tensioning method for on-site insulation wrapping of a 35kV overhead line, which specifically comprises the following steps: S1. Optical cable installation: The processed optical cable body 3 is installed on the inner sides of the second recess 117 and the first recess 109 and is clamped and tightened using the toothed clamping plate 124; S2, optical cable cutting: using the first cutting knife 116 and the second cutting knife 205 to cut the insulation layer; S3, optical cable installation: Install and protect the insulating shell and the stripped optical cable body 3.

[0023] The above-mentioned cutting and tensioning method for on-site insulation wrapping of 35kV overhead lines has the following more specific steps: S1. Installation of optical cable: Before use, measure the optical cable body 3 first and find the position where the insulating nodule needs to be installed overhead. Then place the optical cable body 3 inside the second recess 117 and the first recess 109 on the inner side of the two circular rotating cylinders 107. Then, rotate the fourth threaded rods 123 on both sides respectively. While rotating, hold the optical cable body 3 on the inner side of the toothed clamping plates 124 with your hands. After the two toothed clamping plates 124 on the same side are closed, the optical cable body 3 is fixed and clamped. After the optical cable body 3 is clamped, start the dual-axis motor 119. After the dual-axis motor 119 is started, it drives the two third threaded rods 120 to rotate. At this time, the two threaded cylinders 121 push the square frames 122 and the toothed clamping plates 124 on both sides to move back to back under the limit of the second guide groove 125 and the transverse guide rod 126. The moving toothed clamping plates 124 straighten and tighten the optical cable body 3. After the optical cable body 3 is fully tightened, turn off the dual-axis motor 119.

[0024] S2. Optical cable cutting: Rotate the first threaded rods 105 on both sides respectively to let the guide rods 103 push the circular rotating cylinders 107 on both sides to move toward or away from each other, and the guide frame 112 and the guide plug rod 113 can dock with each other for limiting guidance, so that the two circular rotating cylinders 107 are adjusted to the position to be cut, and then pick up the flip frame 201 and the handle 202 by hand, and then move the hollow frame 203 to reach the same position of the circular rotating cylinder 107, and then insert the hollow frame 203 into the inner side of the rectangular plug frame 110, and then rotate the fifth threaded rod 204 to push the second cutting knife 205 down so that the second cutting knife 205 cuts the optical cable body 3 and enters the inner side of the insulation layer, and then hold the handle 202 by hand between the arc slider 106 and The annular groove 108 is limited and drives the two circular rotating drums 107 and the second cutting knife 205 to rotate around the optical cable body 3. At this time, the second cutting knife 205 cuts both sides of the surface of the optical cable body 3, and then pulls up the handle 202 and the second cutting knife 205. Then, the second threaded rod 115 is rotated by hand to drive the first cutting knife 116 to rise until the first cutting knife 116 cuts horizontally to the optical cable body 3 and inserts into the inside of the insulation layer and stops. Then, the second threaded rod 115 is held by hand and the first cutting knife 116 is pulled horizontally to the other end under the limit of the sliding block 114. At this time, the first cutting knife 116 cuts a section of the cut optical cable body 3 horizontally from the bottom, and then the cut insulation layer is manually removed.

[0025] S3. Optical cable installation: After removing the insulating layer, cover the two insulating shells on the surface of the stripped optical cable body 3. At this time, the taut optical cable body 3 is more convenient to install. After the installation is completed, start the dual-axis motor 119 to reverse and loosen the optical cable body 3, then rotate the fourth threaded rod 123 to loosen the tooth clamp 124, and pull the optical cable body 3 to move and place the other section that needs to be cut on the top of the load-bearing base plate 101, and then perform the cutting work again.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A cutting and tensioning device for on-site insulation wrapping of a 35kV overhead line, comprising a clamping and tensioning mechanism (1), a cutting and adjusting mechanism (2) and an optical cable body (3), characterized in that: The clamping and tightening mechanism (1) comprises a load-bearing base plate (101), both sides of the top of the load-bearing base plate (101) are fixedly connected to side support plates (102) via fixing plates, the cutting and adjusting mechanism (2) is installed between the two side support plates (102), and the optical cable body (3) is arranged on the top of the clamping and tightening mechanism (1).

2. A cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines according to claim 1, characterized in that: A first guide groove (118) is provided at the front and rear of one side of the side support plate (102), a guide rod (103) is slidably mounted on the inner side of the first guide groove (118), a threaded sleeve (104) is fixedly connected between the left ends of the two guide rods (103), a first threaded rod (105) is threadedly connected to the inner side of the threaded sleeve (104), and one end of the first threaded rod (105) is rotatably connected to one side of the side support plate (102) through a bearing member, and an arc-shaped slider (106) is fixedly connected to the opposite ends of the guide rods (103) on both sides.

3. The cutting and tensioning device for on-site insulation wrapping of a 35kV overhead line according to claim 2, characterized in that: A rotating cylinder (107) is rotatably connected between the two arc-shaped sliders (106) on the same side, and an annular sliding groove (108) used in conjunction with the arc-shaped slider (106) is provided on the surface of the rotating cylinder (107). A first notch (109) extending from one side to the other side is provided on one side of the rotating cylinder (107), and the optical cable body (3) is located on the inner side of the first notch (109). A cutting bottom groove (111) communicating with the first notch (109) is provided on the bottom of the rotating cylinder (107). A rectangular insert frame (110) is fixedly connected to the top of the rotating cylinder (107), and a second notch (117) is provided on the top of the side support plate (102).

4. The cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines according to claim 3, characterized in that: The bottom of the left rotating drum (107) is fixedly connected to a guide frame (112) via a fixing plate, and the bottom of the right rotating drum (107) is fixedly connected to a guide rod (113) used in conjunction with the guide frame (112) via a fixing plate.

5. The cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines according to claim 4, characterized in that: A sliding block (114) is slidably mounted on the inner side of the guide frame (112) and is used in conjunction with the guide rod (113). The bottom of the sliding block (114) is threadedly connected to a second threaded rod (115) through an opening. The top of the second threaded rod (115) is rotatably connected to a first cutting knife (116) through a bearing. The first cutting knife (116) is located on the inner side of the cutting bottom groove (111).

6. The cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines according to claim 5, characterized in that: The top of the load-bearing base plate (101) is fixedly connected to a dual-axis motor (119) via a bracket, and both output shafts of the dual-axis motor (119) are fixedly connected to a third threaded rod (120) via a coupling, one end of the third threaded rod (120) passes through the side support plate (102) and extends to one side of the side support plate (102), and the surface of the third threaded rod (120) is threadedly connected to a threaded barrel (121), and a second guide groove (125) is provided on one side of the side support plate (102), and a transverse guide rod (126) is slidably installed on the inner side of the second guide groove (125), and one end of the transverse guide rod (126) is fixedly connected to the threaded barrel (121).

7. The cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines according to claim 6, characterized in that: The top end of the threaded barrel (121) is fixedly connected to a square frame (122) via a fixing plate. The inner side of the square frame (122) is rotatably connected to a fourth threaded rod (123) via an opening. The front and rear portions of the surface of the fourth threaded rod (123) are both threadedly connected to toothed clamps (124).

8. The cutting and tensioning device for on-site insulation wrapping of 35kV overhead lines according to claim 7, characterized in that: The cutting adjustment mechanism (2) comprises two flip frames (201), and the flip frames (201) are located on the upper part of the load-bearing base plate (101), a handle (202) is fixedly connected between the two flip frames (201), a hollow frame (203) used in conjunction with the rectangular insert frame (110) is slidably mounted on the inner side of the flip frame (201), a second cutting knife (205) is slidably mounted on the inner side of the hollow frame (203), a fifth threaded rod (204) is threadedly connected to the top of the hollow frame (203) through an opening, and the bottom end of the fifth threaded rod (204) is rotatably connected to the top of the second cutting knife (205) through a bearing member.

9. A cutting and tensioning method for on-site insulation wrapping of 35kV overhead lines, characterized by: The specific steps include: S1. Optical cable installation: Process the optical cable body (3) and install it to the inner side of the second recess (117) and the first recess (109), and clamp and tighten it using the toothed clamping plate (124); S2, optical cable cutting: using a first cutting knife (116) and a second cutting knife (205) to cut the insulation layer; S3. Optical cable installation: Install and protect the insulating shell and the stripped optical cable body (3).

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