A test method based on cable synchronization test device

Abstract

The invention discloses a test method based on a cable synchronous test device, and the test method includes: S1, installing a test group on a plurality of parallel cables, and keeping a central test unit stationary; S2, controlling each potential energy storage unit to release potential energy in sequence in a manner of dispersing from the center to both sides, and driving the corresponding edge test unit to slide to both sides of the cable, so as to realize the synchronous installation of the test device on a plurality of parallel cables; due to the effect of the traction rope, each correspondingly connected edge test unit moves synchronously on the parallel cables and reaches a designated position; S3, according to the current direction of the cable, the cable is detected in sequence through the central test unit and the edge test unit according to time. A detection command is sent to the central test unit or the edge test unit in the current direction through a communication module and timing is started, until all edge test units perform signal acquisition and timing, so as to realize simultaneous detection on different cables and reduce the detection error.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and in particular to a testing method based on a cable synchronous testing device. Background Art

[0002] With the rapid development of urban power grids, the number of cable lines put into operation is increasing rapidly, and the operating status of cables directly affects the safety of the power system. In order to ensure the safety of power transmission by cables, it is necessary to perform intermittent testing of power signals on the cable transmission routes.

[0003] The existing power detection devices have the following problems: 1. The power detection devices need to be installed manually and cannot automatically move to the designated position for detection; 2. They generally adopt a standing or hanging structure, which makes the structure unstable and difficult to cope with harsh environments. 3. Synchronous detection cannot be achieved, and the error is large.

[0004] Therefore, it is necessary to improve the power detection device in the prior art to solve the above problems. Summary of the invention

[0005] The invention overcomes the shortcomings of the prior art and provides a testing method based on a cable synchronization testing device.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a test method based on a cable synchronization test device, characterized in that the test device is composed of a plurality of test groups and a traction rope connecting adjacent test groups to form a closed polygonal structure;

[0007] Each of the test groups comprises: a central test unit, a plurality of edge test units arranged on both sides of the central test unit, and potential energy storage units corresponding to the edge test units one by one; the central test unit, the edge test units and the potential energy storage units are all slidably connected to the cable;

[0008] The test method comprises the following steps:

[0009] S1. Install the test group on several parallel cables and keep the central test unit stationary;

[0010] S2. Control each potential energy storage unit to release potential energy in turn in a dispersed manner from the center to both sides, and drive the corresponding edge test unit to slide to both sides of the cable; due to the action of the traction rope, each correspondingly connected edge test unit moves synchronously on the parallel cable and reaches the designated position;

[0011] S3. According to the current direction of the cable, the cable is tested in sequence through the central test unit and the edge test unit according to time.

[0012] In a preferred embodiment of the present invention, the center test unit and the edge test unit both include: a sliding structure, and a detection structure arranged below the sliding structure; the sliding structure includes: a sliding shell, a sliding wheel rotatably connected to the sliding shell, and a brake disc coaxially connected to the sliding wheel; the sliding wheel is slidably connected to the cable.

[0013] In a preferred embodiment of the present invention, the detection structure includes: a detection shell, a mutual inductor, a processor, an analog-to-digital conversion module, a storage module, a communication module and a timing module arranged inside the detection shell; the mutual inductor is connected to the processor, the analog-to-digital conversion module and the communication module in sequence, and the analog-to-digital conversion module is connected to the storage module.

[0014] In a preferred embodiment of the present invention, in S3, a detection command is sent to a central test unit or an edge test unit in the current direction through a communication module and timing is started until all edge test units perform signal acquisition and timing.

[0015] In a preferred embodiment of the present invention, a brake caliper is arranged on the circumference of the brake disc.

[0016] In a preferred embodiment of the present invention, the bottoms of the central test unit and the edge test unit are connected with counterweight blocks via a counterweight chain.

[0017] In a preferred embodiment of the present invention, a micro-adjustment structure is provided at the bottom of the detection structure of the edge testing unit, and the micro-adjustment structure includes: a gas tank, a pressurizing member connected to the gas tank, and a plurality of output pipes connected to the pressurizing member; the output pipes are symmetrically arranged and parallel to the length direction of the cable.

[0018] In a preferred embodiment of the present invention, the potential energy storage unit includes: an elastic member, a control member for controlling the compression length of the elastic member, and an output rod connected to the elastic member, wherein the output rod is connected to the corresponding edge test unit.

[0019] In a preferred embodiment of the present invention, the compression length of the elastic member decreases from the position of the central testing unit to both sides.

[0020] In a preferred embodiment of the present invention, the central test unit or the edge test unit of each test group is connected by the traction rope.

[0021] The present invention solves the defects existing in the background technology and has the following beneficial effects:

[0022] (1) The present invention provides a testing method for a cable synchronous testing device, wherein the potential energy of a potential energy storage unit is released so that the testing device gradually decomposes to both sides and automatically moves to a designated testing position; combined with a traction rope, the testing device can be synchronously installed or arranged on a plurality of parallel cables in a distribution network.

[0023] (2) The present invention reduces the gradient of potential energy storage or release and improves stability by dispersing the energy from the center to both sides. Counterweight blocks are arranged at the bottom of the central test unit and the edge test unit to balance the test unit and increase the contact between the cable and the sliding wheel, thereby further improving the stability of the device.

[0024] (3) The present invention detects several parallel cables at the same time according to the current direction of the cables, and sends a detection command to the central test unit or edge test unit in the current direction through the communication module and starts timing until all edge test units perform signal acquisition and timing, thereby realizing simultaneous detection on different cables and reducing detection errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a cable synchronization test device according to a preferred embodiment of the present invention;

[0027] Figure 2 is a schematic diagram of the three-dimensional structure of a test group according to a preferred embodiment of the present invention;

[0028] Figure 3 is a schematic diagram of the arrangement of the central test unit and the edge test unit of a preferred embodiment of the present invention;

[0029] Figure 4 is a schematic diagram of the three-dimensional structure of an edge testing unit according to a preferred embodiment of the present invention;

[0030] In the figure: 1. Cable synchronization test device; 2. Test group; 21. Center test unit; 22. Edge test unit; 23. Sliding structure; 231. Sliding shell; 232. Sliding wheel; 233. Brake disc; 234. Brake caliper; 24. Detection structure; 25. Potential energy storage unit; 251. Output rod; 26. Micro-adjustment structure; 261. Gas tank; 262. Pressurizing member; 263. Output pipeline; 3. Towing rope. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0035] like Figure 1 As shown, a three-dimensional structural schematic diagram of a cable synchronization testing device 1 in the present invention is shown.

[0036] The cable synchronization test device 1 is composed of a plurality of test groups 2 and a traction rope 3 connecting adjacent test groups 2, forming a closed polygonal structure, which improves the stability of the cable synchronization test device 1. The cable synchronization test device 1 in the present invention is suitable for multiple parallel cables. The parallel cables here refer to: a plurality of parallel cables between each bundle of power grids between iron towers, and the heights of each position of the parallel cables are kept consistent, and there is no situation where the two ends are high and the middle is low.

[0037] like Figure 2 , which shows a schematic diagram of the three-dimensional structure of the test group 2 in the present invention. In the present invention, each test group 2 includes: a central test unit 21, a plurality of edge test units 22 arranged on both sides of the central test unit 21, and potential energy storage units 25 corresponding to the edge test units 22 one by one; the central test unit 21, the edge test unit 22 and the potential energy storage unit 25 are all slidably connected to the cable.

[0038] The present invention provides a testing method based on a cable synchronization testing device 1, comprising the following steps:

[0039] S1, install the test group 2 on a plurality of parallel cables and keep the central test unit 21 stationary;

[0040] S2, in a manner of dispersing from the center to both sides, control each potential energy storage unit 25 to release potential energy in turn, and drive the corresponding edge test unit 22 to slide to both sides of the cable; due to the action of the traction rope 3, each correspondingly connected edge test unit 22 moves synchronously on the parallel cables and reaches the designated position;

[0041] S3. According to the current direction of the cable, the cable is tested in sequence through the central test unit 21 and the edge test unit 22 according to time.

[0042] like Figure 3 As shown in FIG. 1 , a schematic diagram of the arrangement of the central test unit 21 and the edge test unit 22 in the present invention is shown. Figure 4 As shown, a schematic diagram of the three-dimensional structure of the edge test unit 22 in the present invention is shown. The center test unit 21 and the edge test unit 22 of the present invention both include: a sliding structure 23, and a detection structure 24 arranged below the sliding structure 23; the sliding structure 23 includes: a sliding shell 231, a sliding wheel 232 rotatably connected to the sliding shell 231, and a brake disc 233 coaxially connected to the sliding wheel 232; the sliding wheel 232 is slidably connected to the cable. A brake caliper 234 is arranged circumferentially of the brake disc 233. The surface of the sliding wheel 232 is provided with a groove that matches the surface of the cable, and the depth of the groove is not less than the diameter of the cable, so as to ensure the balance or stability of the sliding wheel 232 when rotating.

[0043] The detection structure 24 includes: a detection housing, a mutual inductor, a processor, an analog-to-digital conversion module, a storage module, a communication module and a timing module arranged inside the detection housing; the mutual inductor is connected to the processor, the analog-to-digital conversion module and the communication module in sequence, and the analog-to-digital conversion module is connected to the storage module. In S3, a detection command is sent to the central test unit 21 or the edge test unit 22 in the current direction through the communication module and timing is started until all edge test units 22 perform signal acquisition and timing, thereby realizing simultaneous detection on different cables and reducing detection errors.

[0044] The bottoms of the central test unit 21 and the edge test unit 22 of the present invention are connected with counterweight blocks via counterweight chains.

[0045] The bottom of the detection structure 24 of the edge test unit 22 of the present invention is provided with a fine adjustment structure 26, which includes: a gas tank 261, a pressurizing member 262 connected to the gas tank 261, and a plurality of output pipes 263 connected to the pressurizing member 262. The output pipes 263 are arranged symmetrically and parallel to the length direction of the cable.

[0046] When the edge test unit 22 is stationary and is not at a designated position, the output pipe 263 is driven to spray pressurized gas, so that the edge test unit 22 moves on the cable, thereby accurately adjusting the distribution distance of the edge test unit 22 on the cable.

[0047] The potential energy storage unit 25 includes: a housing, an elastic member disposed inside the housing, a control member for controlling the compression length of the elastic member, and an output rod 251 connected to the elastic member, wherein the output rod 251 is connected to the corresponding edge test unit 22. The compression length of the elastic member decreases from the position of the central test unit 21 to both sides, so that the degree of potential energy release from the position of the central test unit 21 to the potential energy storage units 25 on both sides decreases, ensuring that each edge test unit 22 can be dispersed to both ends of the cable in turn.

[0048] In the present invention, the control member is connected to the output rod 251, and the output rod 251 is indirectly connected to the elastic member. The control member preferably includes: a main rod, a guide rod slidably connected to the main rod, and a connecting rod connected to the main rod. The main rod includes an abutment portion and a telescopic portion, both of which are cylindrical structures, the abutment portion is larger than the telescopic portion, and the telescopic portion is a hollow structure. The guide rod is a solid structure and is fixedly connected to the shell. The central axis of the main rod and the guide rod coincide. The two ends of the elastic member are respectively connected to the ends of the abutment portion and the guide rod. The inner diameter of the telescopic portion is larger than the outer diameter of the guide rod, and the main rod can move along the length direction of the guide rod. Preferably, a plurality of pulleys are arranged on the inner wall of the telescopic portion, and a slide groove cooperating with the pulley is arranged on the surface of the guide rod. The pulley drives the telescopic portion to move along the length direction of the guide rod, thereby driving the compression or extension of the potential energy storage unit 25, thereby realizing the storage or release of the potential energy of the potential energy storage unit 25. In the present invention, the displacement of the positioning device caused by the release of potential energy depends on the length of the potential energy storage unit 25 between the abutment portion and the shell and the rigidity of the potential energy storage unit 25 itself. Those skilled in the art can advantageously select the rigidity of the potential energy storage unit 25 and adjust its length according to the actual required displacement magnitude.

[0049] The elastic member in the present invention is preferably a microspring.

[0050] The central test unit 21 or the edge test unit 22 of each test group 2 is connected by a traction rope 3. The edge test units 22 connected by the traction rope 3 slide synchronously on the cable, avoiding the rollover of a single edge test unit 22 and improving the stability of the edge test unit 22.

[0051] Based on the above, when the present invention is used, it includes the following steps:

[0052] S1, install the test group 2 on a plurality of parallel cables and keep the central test unit 21 stationary;

[0053] S2. Control the compression length of the elastic member in the potential energy storage unit 25 in a dispersed manner from the center to both sides, and increase it in sequence from the center to both sides; at the same time, release the potential energy in sequence from the center to both sides, so that a plurality of edge test units 22 are separated in sequence; due to the action of the traction rope 3, each correspondingly connected edge test unit 22 moves synchronously on the parallel cable and reaches a designated position; after the edge test unit 22 is stationary, the output pipe 263 is driven to spray pressurized gas, so that the edge test unit 22 moves on the cable, thereby accurately adjusting the distribution distance of the edge test unit 22 on the cable;

[0054] S3. Start detection from one end of the cable according to the current direction of the cable, send a detection command to the central test unit 21 or edge test unit 22 in the current direction through the communication module and start timing until all edge test units 22 perform signal acquisition and timing, thereby achieving simultaneous detection on different cables and reducing detection errors.

[0055] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A testing method based on a cable synchronization testing device, It is characterized in that The testing device is composed of a plurality of testing groups and a traction rope connecting adjacent testing groups, forming a closed polygonal structure; Each of the test groups comprises: a central test unit, a plurality of edge test units arranged on both sides of the central test unit, and potential energy storage units corresponding to the edge test units one by one; the central test unit, the edge test units and the potential energy storage units are all slidably connected to the cable; The test method comprises the following steps: S1. Install the test group on several parallel cables and keep the central test unit stationary; S2. Control each potential energy storage unit to release potential energy in turn in a dispersed manner from the center to both sides, and drive the corresponding edge test unit to slide to both sides of the cable; due to the action of the traction rope, each correspondingly connected edge test unit moves synchronously on the parallel cable and reaches the designated position; S3. According to the current direction of the cable, the cable is tested in sequence through the central test unit and the edge test unit according to time.

2. A test method based on a cable synchronization test device according to claim 1, Features: The central test unit and the edge test unit both include: a sliding structure, and a detection structure arranged below the sliding structure; the sliding structure includes: a sliding shell, a sliding wheel rotatably connected to the sliding shell, and a brake disc coaxially connected to the sliding wheel; the sliding wheel is slidably connected to the cable.

3. A test method based on a cable synchronization test device according to claim 2, Features: The detection structure includes: a detection shell, a mutual inductor, a processor, an analog-to-digital conversion module, a storage module, a communication module and a timing module arranged inside the detection shell; the mutual inductor is connected to the processor, the analog-to-digital conversion module and the communication module in sequence, and the analog-to-digital conversion module is connected to the storage module.

4. A testing method based on a cable synchronization testing device according to claim 3, Features: In S3, a detection command is sent to the central test unit or the edge test unit in the current direction through the communication module and timing is started until all edge test units perform signal acquisition and timing.

5. A testing method based on a cable synchronization testing device according to claim 2, Features: A brake caliper is arranged on the circumference of the brake disc.

6. A testing method based on a cable synchronization testing device according to claim 1, Features: The bottoms of the central test unit and the edge test unit are connected with counterweight blocks through counterweight chains.

7. A testing method based on a cable synchronization testing device according to claim 2, Features: A fine-adjustment structure is provided at the bottom of the detection structure of the edge test unit, and the fine-adjustment structure includes: a gas tank, a pressurizing member connected to the gas tank, and a plurality of output pipes connected to the pressurizing member; the output pipes are arranged symmetrically and parallel to the length direction of the cable.

8. A testing method based on a cable synchronization testing device according to claim 1, Features: The potential energy storage unit includes: an elastic member, a control member for controlling the compression length of the elastic member, and an output rod connected to the elastic member, wherein the output rod is connected to the corresponding edge testing unit.

9. A testing method based on a cable synchronization testing device according to claim 8, Features: The compression length of the elastic member decreases from the position of the central test unit to both sides.

10. A testing method based on a cable synchronization testing device according to claim 1, Features: The central test unit or the edge test unit of each test group is connected by the traction rope.

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