Clamping mechanism of cable penetrating device

Abstract

The invention discloses a clamping mechanism of a cable penetrating device, and relates to the technical field of power construction equipment, the clamping mechanism comprises an outer shell and a control module, the right side of the inner wall of the outer shell is rotatably connected with a first gear ring through a bearing, and the inner wall of the outer shell is rotatably connected with an inner shell through a bearing; the device comprises an inner shell, the outer wall of the inner shell is fixedly connected with a first gear ring, the outer wall of the first gear ring is engaged with the outer wall of the first gear ring, the inner wall of the inner shell is fixedly connected with a mounting frame, and the front side of the mounting frame is slidably connected with a sliding pile. The control module controls the second motor to drive the threaded rod to adjust the position of the sliding pile, so that the cutter is close to the cable core as much as possible and does not damage the cable core when cutting the filling layer, and the self-adaptive adjustment of the cutter entering distance is realized; the device has the characteristics of high practicability and high-precision automatic processing of a cable semi-conductive layer and a main insulating layer.

Description

Technical Field

[0001] This invention relates to the field of power construction equipment technology, specifically a clamping mechanism for a cable penetration device. Background Technology

[0002] Currently, during the manufacturing, laying, and maintenance of large-section high-voltage cables, the semiconducting shield (referred to as the semiconducting layer) and main insulation layer of the cable need to be precisely removed and processed for termination, joint fabrication, or insulation testing. Existing methods for processing the semiconducting layer and insulation layer mostly rely on manual operation, typically using handheld cutting knives, circumferential cutters, or peeling tools in steps. This process is not only labor-intensive, but also makes it difficult to maintain consistent cutting depth, entry position, and cutting angle, easily causing scratches or uneven cutting of the insulation layer, affecting the cable's insulation performance and service life.

[0003] A Chinese patent with publication number CN113594978A discloses a cable end chamfering tool. The positioning component of this device can accurately locate the position where the cable needs to be chamfered, making it simpler and easier to determine the chamfering position. However, this type of semi-automatic stripping tool generally has the following problems: First, it has poor adaptability, requiring the replacement of cutters or clamps for cables with different outer diameters, and cannot achieve automatic adaptation; second, it lacks cable core position detection and dynamic cutter entry control functions, making it difficult to accurately control the cutting depth when approaching the conductor core; third, the cutter height and cutting distance need to be manually adjusted, resulting in low cutter changing efficiency and easy errors; fourth, when processing cables in a bent or coiled state, the relative position of the cutter and the cable core changes significantly, and the existing device cannot adjust the cutter position in real time according to the cable curvature, which can easily cause cutting deviation or damage to the cable core.

[0004] Therefore, there is an urgent need for a cable penetration device clamping and cutting mechanism that can automatically adapt to cables of different outer diameters, has cable core position detection and dynamic tool entry adjustment, can identify tool type and automatically match height, and can perform real-time position compensation for bent cables, so as to achieve high-precision automated processing of cable semiconducting layer and main insulation layer, reduce manual intervention, and improve processing quality and efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a clamping mechanism for a cable penetration device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a clamping mechanism for a cable penetration device, comprising a housing and a control module, wherein a first gear is rotatably connected to the right side of the inner wall of the housing via a bearing, an inner shell is rotatably connected to the inner wall of the housing via a bearing, a first toothed ring is fixedly connected to the outer wall of the inner shell, the outer wall of the first toothed ring meshes with the outer wall of the first gear, a mounting bracket is fixedly connected to the inner wall of the inner shell, a sliding post is slidably connected to the front side of the mounting bracket, an insert block is fixedly connected to the upper inner side of the sliding post via bolts, a cutting blade is fixedly connected to the outer wall of the insert block, and a handle is fixedly connected to the rear side of the inner shell;

[0007] An adjustment mechanism is provided on the rear side of the inner shell. The adjustment mechanism includes a rotating component and an eddy current detection module on the rotating component. The eddy current detection module is used to measure the position of the cable core.

[0008] The mounting frame has an internal support mechanism, which includes a transmission assembly and rollers on the transmission assembly. The rollers are used to contact the outer wall of cables with different outer diameters to support the device.

[0009] According to the above technical solution, the outer shell has a transmission hole on the front side of the first gear, and the front end of the first gear has a transmission groove. The inner shell and the mounting bracket can rotate relative to the outer shell, and the sliding pile can slide up and down relative to the mounting bracket. The mounting bracket has a through-hole in the middle.

[0010] According to the above technical solution, the support mechanism includes a third motor, which is electrically connected to the control module. The third motor is fixedly connected to the rear side of the outer wall of the inner shell. The output end of the third motor passes through the inner shell and extends to the middle of the mounting frame. A second gear is fixedly connected to the outer wall of the output end of the third motor. A spring is fixedly connected to the outer wall of the mounting frame. A bracket is fixedly connected to the other end of the spring. A third toothed ring is threadedly connected to the outer wall of the bracket. The outer wall of the third toothed ring meshes with the outer wall of the second gear. One side of the bracket passes through the mounting frame and extends into the middle circular hole of the mounting frame. The bracket is rotatably connected to a roller and a threaded wheel on one side of the middle of the mounting frame, respectively, through bearings.

[0011] According to the above technical solution, the outer wall of the bracket and the inner wall of the third toothed ring are inclined, and the height of the front side of the outer wall of the bracket is higher than the height of the rear side of the outer wall of the bracket.

[0012] According to the above technical solution, the mounting frame is provided with three sets of support mechanisms, and the outer wall of the threaded wheel is provided with threaded protrusions.

[0013] According to the above technical solution, the adjustment mechanism includes a first motor, which is electrically connected to the control module. The first motor is fixedly connected to the outer wall of the rear side of the inner shell. A transmission rod is fixedly connected to the output end of the first motor. A rotating cylinder is rotatably connected to the rear side of the inner shell through a bearing. A second toothed ring is fixedly connected to the outer wall of the rotating cylinder. The rotating cylinder is connected to the first motor through the second toothed ring and the rotating cylinder. An eddy current detection module is fixedly connected to the inner wall of the rotating cylinder. A second motor is fixedly connected to the front side of the outer wall of the mounting bracket. Both the eddy current detection module and the second motor are electrically connected to the control module. A threaded rod is fixedly connected to the output end of the second motor. The outer wall of the threaded rod is threadedly connected to the inner wall of the sliding pile.

[0014] According to the above technical solution, an encoding piece is fixedly connected to one side of the outer wall of the insert block, and a detection head is fixedly connected to the outer wall of the sliding pile on one side of the encoding piece.

[0015] According to the above technical solution, three laser ranging modules are fixedly connected to the lower inner wall of the mounting frame. The three laser ranging modules are arranged sequentially from front to back. An angle detection module is provided on the lower side of each laser ranging module. The outer wall of the angle detection module is fixedly connected to the inner wall of the mounting frame. Both the laser ranging module and the angle detection module are electrically connected to the control module.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting a third motor, a second gear, a bracket, a third toothed ring, and a roller, can drive the second gear to rotate under the drive of the third motor, thereby causing the third toothed ring, which is threadedly engaged with the bracket, to move axially along the inclined outer wall, so that the bracket pushes the roller to radially clamp the outer wall of the cable, realizing adaptive clamping of cables with different outer diameters, and ensuring reliable clamping after the control module monitors that the torque meets the standard, thereby improving the versatility and clamping accuracy of the device.

[0017] By incorporating a first motor, a transmission rod, a rotating drum, an eddy current detection module, a second motor, and a threaded rod, the eddy current detection module can rotate around the cable under the drive of the first motor to detect the position of the cable core and transmit the data to the control module. The control module then controls the second motor to drive the threaded rod to adjust the position of the sliding block, ensuring that the cutter is as close as possible to the cable core when cutting the filler layer without damaging it. This achieves adaptive adjustment of the cutter entry distance, improving cutting accuracy and safety.

[0018] By setting up a detection head and an encoding chip, the detection head can identify the tool type when different tools are installed and feed the feedback to the control module. The control module then automatically controls the second motor to adjust the position of the slide block according to the preset tool height, thereby reducing manual adjustment steps and improving tool changing efficiency and height matching accuracy.

[0019] By incorporating a laser ranging module and an angle detection module, the distance between the cable's outer wall and the laser ranging module, as well as the rotation angle of the mounting frame, can be detected in real time during the rotation of the mounting frame driven by the inner shell. Based on different ranging points, the bending curvature and offset direction of the cable are calculated. The control module then dynamically adjusts the position of the second motor-driven sliding pile accordingly, ensuring that the cutter maintains a safe distance from the cable core when cutting the curved section, thereby guaranteeing cutting accuracy and preventing damage to the cable core. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the inner shell structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the mounting bracket of the present invention;

[0025] Figure 5 This is a schematic diagram of the sliding pile structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the support mechanism structure of the present invention;

[0027] In the diagram: 1. Outer shell; 2. First gear; 3. Inner shell; 4. Mounting bracket; 5. Sliding stake; 6. Insert block; 7. Cutting blade; 8. Adjustment mechanism; 9. Handle; 10. Support mechanism; 11. First gear ring; 12. Laser ranging module; 13. Angle detection module; 801. First motor; 802. Transmission rod; 803. Rotary drum; 804. Second gear ring; 805. Eddy current detection module; 806. Second motor; 807. Threaded rod; 808. Detection head; 809. Encoding chip; 101. Third motor; 102. Second gear; 103. Spring; 104. Bracket; 105. Third gear ring; 106. Roller; 107. Threaded wheel. Detailed Implementation

[0028] 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.

[0029] Example 1: Please refer to Figure 1-6 The present invention provides a technical solution: a clamping mechanism for a cable penetration device, comprising a housing 1 and a control module. A first gear 2 is rotatably connected to the right side of the inner wall of the housing 1 via a bearing. An inner housing 3 is rotatably connected to the inner wall of the housing 1 via a bearing. A first toothed ring 11 is fixedly connected to the outer wall of the inner housing 3. The outer wall of the first toothed ring 11 meshes with the outer wall of the first gear 2. A mounting bracket 4 is fixedly connected to the inner wall of the inner housing 3. A sliding post 5 is slidably connected to the front side of the mounting bracket 4. An insert block 6 is fixedly connected to the upper inner side of the sliding post 5 via bolts. A cutting blade 7 is fixedly connected to the outer wall of the insert block 6. A handle 9 is fixedly connected to the rear side of the inner housing 3.

[0030] The mounting frame 4 has an internal support mechanism 10, which includes a transmission assembly and rollers 106 on the transmission assembly. The rollers 106 are used to contact the outer walls of cables with different outer diameters to support the device. The outer shell 1 has a transmission hole on the front side of the first gear 2, and the front end of the first gear 2 has a transmission groove. The inner shell 3 and the mounting frame 4 can rotate relative to the outer shell 1. The sliding pile 5 can slide up and down relative to the mounting frame 4. The mounting frame 4 has a through-hole in the middle. The support mechanism 10 includes a third motor 101, which is electrically connected to the control module. The outer wall of the third motor 101 is fixedly connected to the rear side of the outer wall of the inner shell 3. The output end of the third motor 101 extends through the inner shell 3 and the mounting frame 4 to the middle of the mounting frame 4. A second gear 102 is fixedly connected to the outer wall of the mounting frame 4. A spring 103 is fixedly connected to the outer wall of the mounting frame 4. A bracket 104 is fixedly connected to the other end of the spring 103. A third toothed ring 105 is threadedly connected to the outer wall of the bracket 104. The outer wall of the third toothed ring 105 meshes with the outer wall of the second gear 102. One side of the bracket 104 extends through the mounting frame 4 to the inside of the central circular hole of the mounting frame 4. The bracket 104 is located on one side of the central part of the mounting frame 4 and is rotatably connected to the roller 106 and the threaded wheel 107 through bearings. The outer wall of the bracket 104 and the inner wall of the third toothed ring 105 are inclined. The height of the front side of the outer wall of the bracket 104 is higher than the height of the rear side of the outer wall of the bracket 104. Three sets of support mechanisms 10 are provided on the mounting frame 4. The outer wall of the threaded wheel 107 is provided with threaded protrusions.

[0031] When this device is used, the surface ring cutter, the filling layer cutter, and the chamfering cutter are fixed on three sliding piles 5 respectively. They are installed inside the sliding piles 5 according to the progress of the work. The mounting frame 4 is sleeved on the outside of the cable and connected to the outside of the first gear 2 through an external power output device. The sliding piles 5 are adjusted to a suitable height. During this process, the third motor 101 drives the second gear 102 to rotate, which in turn drives the third gear ring 105 to rotate. Since the inner wall of the third gear ring 105 is threadedly connected to the outer wall of the bracket 104, the third gear ring 105 will move forward during the rotation. At this time, since the outer wall of the bracket 104 is an inclined structure and the lower side of the bracket 104 is elastically supported by the spring 103, the three brackets 104 will move towards the side closer to the round hole on the mounting frame 4, so that the three rollers 106 contact the outer wall of the cable. During this process, the control module detects the torque of the third motor 101. When the torque of the third motor 101 reaches the standard, it indicates that the rollers 106 are in close contact with the outer wall of the cable.

[0032] Then, the external power output device drives the first gear 2 and the first gear ring 11 to rotate, which causes the inner shell 3 to drive the cutting blade 7 to rotate, thereby sequentially completing the cutting of the filler layer and insulation layer of the cable and subsequent chamfering operations.

[0033] This device can automatically adapt to cables of different outer diameters to complete the cutting operation.

[0034] Example 2: Please refer to Figure 1-6 Based on Embodiment 1, the present invention provides a technical solution: an adjustment mechanism 8 is provided on the rear side of the inner shell 3. The adjustment mechanism 8 includes a rotating component and an eddy current detection module 805 on the rotating component. The eddy current detection module 805 is used to measure the position of the cable core. The adjustment mechanism 8 includes a first motor 801, which is electrically connected to a control module. The outer wall of the first motor 801 is fixedly connected to the rear outer wall of the inner shell 3. A transmission rod 802 is fixedly connected to the output end of the first motor 801. The rear side of the inner shell 3 rotates through a bearing. A rotating drum 803 is connected, and a second toothed ring 804 is fixedly connected to the outer wall of the rotating drum 803. The rotating drum 803 is connected to the first motor 801 through the second toothed ring 804 and the rotating drum 803. An eddy current detection module 805 is fixedly connected to the inner wall of the rotating drum 803. A second motor 806 is fixedly connected to the front side of the outer wall of the mounting bracket 4. Both the eddy current detection module 805 and the second motor 806 are electrically connected to the control module. A threaded rod 807 is fixedly connected to the output end of the second motor 806. The outer wall of the threaded rod 807 is threadedly connected to the inner wall of the sliding pile 5.

[0035] When cutting the straightened cable, after the device is fitted onto the outside of the cable, the control module first starts the first motor 801 to drive the transmission rod 802 to rotate. This causes the transmission rod 802 to drive the second toothed ring 804 and the rotating drum 803 to complete a 360-degree rotation. During this process, the eddy current detection module 805 rotates around the outside of the cable to detect the distance between the cable core and the eddy current detection module 805, and transmits the measured distance to the control module. The control module adjusts the second motor 806 according to the position of the cable core, so that the second motor 806 drives the threaded rod 807 to rotate and adjust the position of the sliding pile 5. This allows the cutting blade 7 to cut the filler layer as close to the cable core as possible and avoid damage to the cable core. The cutting blade can also adjust the cutting distance according to the thickness of the filler layer, thus completing adaptive cutting.

[0036] Example 3: Please refer to Figure 1-6 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: an encoding piece 809 is fixedly connected to one side of the outer wall of the insert block 6, and a detection head 808 is fixedly connected to the outer wall of the sliding pile 5 on one side of the encoding piece 809;

[0037] During the application of this device, since the height and cutting distance of different cutters are different, coding pieces 809 are set on the inserts 6 on the underside of different cutters. After the inserts 6 are inserted into the slide block 5, the detection head 808 can identify the cutter type by itself, so that the control module controls the second motor 806 to adjust the height of the slide block 5 according to the preset cutter height, which facilitates subsequent operation and reduces the steps of manual adjustment.

[0038] Example 4: Please refer to Figure 1-6 Based on Embodiments 1, 2 and 3, the present invention provides a technical solution: three laser ranging modules 12 are fixedly connected to the lower inner wall of the mounting frame 4, the three laser ranging modules 12 are arranged sequentially from front to back, and an angle detection module 13 is provided on the lower side of the laser ranging module 12. The outer wall of the angle detection module 13 is fixedly connected to the inner wall of the mounting frame 4, and both the laser ranging module 12 and the angle detection module 13 are electrically connected to the control module.

[0039] When the device cuts cables with large curvatures, the inner shell 3 drives the mounting bracket 4 to rotate synchronously during the cutting process. Furthermore, the three laser ranging modules 12 measure the distance from the cable's outer wall in real time. Since the distance between the curved cable's outer wall and the three laser ranging modules 12 differs, and the cables are often coiled and have relatively uniform curvature, the arc of the cable's bend can be calculated from the distance between the three laser ranging modules 12 and the cable's outer wall. During the rotation of the inner shell 3, the angle detection module 13 detects the rotation angle relative to the mounting bracket 4. When the laser ranging modules 12 rotate relative to the curved cable, the laser ranging module located in the middle... The distance between module 12 and the outer wall of the cable changes periodically, with a maximum and a minimum distance, and the two positions appear symmetrically. The control module records the angle when the curved outer wall of the cable is at its maximum distance from the laser ranging module 12 located in the middle, and the angle when it is at its minimum distance. The cable offset distance can be obtained by calculating the curvature, and the cable bending direction and distance can be obtained. Thus, when cutting the cable, the control module can dynamically adjust the second motor 806, so that the second motor 806 adjusts the position of the slide block 5 in real time. When it is far away from the cable, it pushes the cutting blade 7 closer to the cable core, and when it is close to the cable, it drives the cutting blade 7 away from the cable core.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A clamping mechanism for a cable penetration device, comprising a housing (1) and a control module, characterized in that: The right side of the inner wall of the outer shell (1) is rotatably connected to the first gear (2) via a bearing. The inner wall of the outer shell (1) is rotatably connected to the inner shell (3) via a bearing. The outer wall of the inner shell (3) is fixedly connected to the first toothed ring (11). The outer wall of the first toothed ring (11) meshes with the outer wall of the first gear (2). The inner wall of the inner shell (3) is fixedly connected to the mounting bracket (4). The front side of the mounting bracket (4) is slidably connected to the sliding post (5). The upper side of the inner side of the sliding post (5) is fixedly connected to the insert block (6) via bolts. The outer wall of the insert block (6) is fixedly connected to the cutting blade (7). The rear side of the inner shell (3) is fixedly connected to the handle (9). An adjustment mechanism (8) is provided on the rear side of the inner shell (3). The adjustment mechanism (8) includes a rotating component and an eddy current detection module (805) on the rotating component. The eddy current detection module (805) is used to measure the position of the cable core. The mounting bracket (4) is provided with a support mechanism (10), which includes a transmission component and rollers (106) on the transmission component. The rollers (106) are used to contact the outer wall of cables with different outer diameters to support the device.

2. The clamping mechanism of the cable penetration device according to claim 1, characterized in that: The outer shell (1) has a transmission hole on the front side of the first gear (2), and the front end of the first gear (2) has a transmission groove. The inner shell (3) and the mounting bracket (4) can rotate relative to the outer shell (1). The sliding pile (5) can slide up and down relative to the mounting bracket (4). The mounting bracket (4) has a through hole in the middle.

3. The clamping mechanism of the cable penetration device according to claim 1, characterized in that: The support mechanism (10) includes a third motor (101), which is electrically connected to the control module. The outer wall of the third motor (101) is fixedly connected to the rear side of the outer wall of the inner shell (3). The output end of the third motor (101) extends through the inner shell (3) and the mounting bracket (4) to the middle of the mounting bracket (4). A second gear (102) is fixedly connected to the outer wall of the output end of the third motor (101), and a spring (103) is fixedly connected to the outer wall of the mounting bracket (4). The other end of the spring (103) is fixedly connected to a bracket (104). The outer wall of the bracket (104) is threadedly connected to a third toothed ring (105). The outer wall of the third toothed ring (105) meshes with the outer wall of the second gear (102). One side of the bracket (104) extends through the mounting frame (4) to the inside of the central circular hole of the mounting frame (4). The bracket (104) is located on one side of the central part of the mounting frame (4) and is rotatably connected to the roller (106) and the threaded wheel (107) respectively through bearings.

4. The clamping mechanism of the cable penetration device according to claim 3, characterized in that: The outer wall of the bracket (104) and the inner wall of the third toothed ring (105) are inclined, and the height of the front side of the outer wall of the bracket (104) is higher than the height of the rear side of the outer wall of the bracket (104).

5. The clamping mechanism of the cable penetration device according to claim 3, characterized in that: The mounting bracket (4) is provided with three sets of support mechanisms (10), and the outer wall of the threaded wheel (107) is provided with threaded protrusions.

6. The clamping mechanism of the cable penetration device according to claim 1, characterized in that: The adjusting mechanism (8) includes a first motor (801), which is electrically connected to the control module. The outer wall of the first motor (801) is fixedly connected to the rear outer wall of the inner shell (3). A transmission rod (802) is fixedly connected to the output end of the first motor (801). A rotating cylinder (803) is rotatably connected to the rear side of the inner shell (3) via a bearing. A second gear ring (804) is fixedly connected to the outer wall of the rotating cylinder (803). The rotating cylinder (803) is connected to the second gear ring (804) via the second gear ring (802). 04) The rotating drum (803) is connected to the first motor (801) for transmission. The inner wall of the rotating drum (803) is fixedly connected to the eddy current detection module (805). The front side of the outer wall of the mounting bracket (4) is fixedly connected to the second motor (806). The eddy current detection module (805) and the second motor (806) are both electrically connected to the control module. The output end of the second motor (806) is fixedly connected to the threaded rod (807). The outer wall of the threaded rod (807) is threadedly connected to the inner wall of the sliding pile (5).

7. The clamping mechanism of the cable penetration device according to claim 6, characterized in that: A coding piece (809) is fixedly connected to one side of the outer wall of the insert (6), and a detection head (808) is fixedly connected to the outer wall of the sliding pile (5) on the side of the coding piece (809).

8. The clamping mechanism of the cable penetration device according to claim 1, characterized in that: Three laser ranging modules (12) are fixedly connected to the lower inner wall of the mounting bracket (4). The three laser ranging modules (12) are arranged in sequence from front to back. An angle detection module (13) is provided on the lower side of the laser ranging module (12). The outer wall of the angle detection module (13) is fixedly connected to the inner wall of the mounting bracket (4). Both the laser ranging module (12) and the angle detection module (13) are electrically connected to the control module.

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