Cable fault detection device and detection method thereof

Abstract

The invention discloses a cable fault detection device and method, and belongs to the technical field of detection, and the device comprises a rack and a frame body, and also comprises a fixed detection mechanism which is used for carrying out the fixed detection of a section of cable; the driving mechanism is used for driving the fixed detection mechanisms to clamp the cable so as to detect the cable or driving the two groups of fixed detection mechanisms to perform linear motion in opposite motion directions so as to perform stretching stress and distortion stretching stress detection on the reconnected cable; wherein the fixed detection mechanism comprises a semi-circular ring clamping piece A, a semi-circular ring clamping piece B, a pin shaft and a supporting block, and further comprises a limiting assembly used for limiting the opening of the semi-circular ring clamping piece A and the opening of the semi-circular ring clamping piece B; the detection assembly is used for clamping the cable and promoting the clamped cable to be twisted; according to the invention, power-on fault detection can be carried out on the cable, and drawing force and distortion drawing force experiments can be carried out on the repaired cable.

Description

Technical Field

[0001] The present invention belongs to the field of detection technology, and in particular relates to a cable fault detection device and a detection method thereof. Background Art

[0002] The existing cable fault detection device mainly consists of a power cable fault tester and a wire clamping device (wire clamp) for detecting the wire, and the wire clamp is connected to the power cable fault tester through a connecting wire (wire).

[0003] The Chinese patent with the announcement number CN115078919B proposes a power grid fault detection device, including a bottom plate, both sides of which are fixedly connected with a temporary fixing mechanism for determining the detection range, and a detection mechanism that can perform continuous detection within the range determined by the temporary fixing mechanism is provided at one end of the top of the bottom plate, and the cross-section of the bottom plate is U-shaped. The invention provides a temporary fixing mechanism, so that when the device is detecting a certain section of cable, the device can be directly fixed on the outside of the cable for detection, without the need to hold the device in hand all the time, which saves time and effort and makes the detection process safer and more reliable;

[0004] The detection mechanism provided in the above-mentioned power grid fault detection device can automatically detect a certain section of cable. There is no need to manually disassemble and assemble the detection mechanism and the cable and reposition them repeatedly, so as to complete the comprehensive detection of the section of cable. The operation is simple and convenient, and can effectively improve the convenience and detection efficiency of cable fault detection. However, for the cable that is reconnected after the detection is completed, due to its own weight, it will form a parabola to droop. Furthermore, if the cable is twisted during laying, it is more likely to cause the cable connection to break. Now a fault detection device that can detect the cable under tensile force and twisting tensile force is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cable fault detection device and a detection method thereof, which solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A cable fault detection device, comprising a rack and a frame, wherein the frame is fixedly connected below the rack, a cover plate is detachably mounted on the frame, and further comprising:

[0007] The fixed detection mechanism has two groups and is symmetrically mounted on the frame, and is used for fixed detection of a section of cable;

[0008] A driving mechanism, mounted on the frame, is used to drive the fixed detection mechanism to clamp the cable for detection or drive two sets of fixed detection mechanisms to perform linear motion in opposite directions to perform tensile stress and twisting tensile stress detection on the reconnected cable;

[0009] The fixed detection mechanism includes a semicircular ring clamping member A, a semicircular ring clamping member B, a pin shaft and a support block, wherein the semicircular ring clamping member B is hinged on the semicircular ring clamping member A through the pin shaft, the semicircular ring clamping member B is fixedly connected to the pin shaft, the pin shaft is connected to the push rod A in the driving mechanism, and the two ends of the support block are respectively fixedly connected with sliding rods that limit sliding with the semicircular ring clamping member A and the semicircular ring clamping member B; and further includes:

[0010] A limiting assembly, mounted on the support block, for limiting the openings of the semicircular ring clamp A and the semicircular ring clamp B;

[0011] The detection component is correspondingly mounted on the semicircular clamping piece A and the semicircular clamping piece B, and is used to clamp the cable and cause the clamped cable to be twisted.

[0012] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0013] Further technical solution: the support block is a trapezoidal slider and its two side edges correspond to the lower side edges of the semicircular clamp A and the semicircular clamp B, and the pin shaft is equipped with a torsion spring for enabling the semicircular clamp A and the semicircular clamp B to reset themselves.

[0014] Further technical solution: The limit assembly includes an insert block, a Y-shaped push plate, a push plate A and a slot, the insert block is fixedly connected to the Y-shaped push plate, the Y-shaped push plate slides in cooperation with a limit slot provided on the support block, the push plate A is fixedly connected to the upper end of the Y-shaped push plate, the insert block cooperates with a slot provided at the lower part of the semicircular ring clamp A, and a through hole is provided on the support block for inserting a limit rod.

[0015] Further technical solution: the detection component includes a semicircular gear, a motor, a flat gear, a detection copper pole block, a pressure block and a mounting slot. The semicircular gear is slidably matched with the mounting slot provided on the semicircular ring clamp B. A floating component is arranged between the inner step of the semicircular gear and the inner wall of the mounting slot to enable the semicircular gear to have a floating space in the horizontal direction. The motor is detachably mounted on the semicircular ring clamp A and a flat gear meshing with the semicircular gear is fixedly connected to its output shaft. The detection copper pole block and two pressure blocks are equidistantly mounted on the semicircular gear. The detection copper pole block and the pressure block are both provided with a linear motion part B fixedly connected to the semicircular gear.

[0016] Further technical solution: the floating assembly includes an annular baffle and an elastic telescopic column, the annular baffle is attached to the outside of the semicircular gear, and the elastic telescopic column fixedly connected to the annular baffle is fixedly connected to the inner wall of the installation slot.

[0017] Further technical solution: the driving mechanism includes a limit rod, a cylinder, a limit push rod, a sliding cavity A, a push rod A, a piston column A and a sliding cavity B, the limit rod is fixedly connected to the limit push rod, the limit push rod slides with the sliding cavity A provided on the cylinder, the cylinder slides with the slide groove provided on the frame, the push rod A slides with the sliding cavity B provided on the frame, one end of the push rod A is fixedly connected to the piston column A, the other end of the push rod A is fixedly connected to the pin shaft, and the piston column A divides the sliding cavity B into cavity A and cavity B; and also includes:

[0018] The driving assembly is installed on the frame and is used to drive the piston column A to push the push rod A to perform linear motion or drive the cylinder column to perform linear motion along the length direction of the slide groove and maintain the position of the cylinder column.

[0019] Further technical solution: The driving assembly includes a push plate B, a hydraulic cylinder, a linear motion part A, a piston column B, a push rod B, an elastic part and a three-way solenoid valve. The push plate B is fixedly connected to the cylinder column, the hydraulic cylinder is fixedly connected to the frame, one end of the push rod B is fixedly connected to the push plate B, the other end of the push rod B extending into the hydraulic cylinder is fixedly connected to the piston column B slidably arranged in the hydraulic cylinder, the piston column B divides the internal cavity C of the hydraulic cylinder into cavity D and cavity E, the three-way solenoid valve is embedded and installed at the bottom of the hydraulic cylinder and is connected to cavity E, the The hydraulic cylinder is provided with an oil outlet A, an oil outlet B, an oil inlet A and an oil inlet B. The oil inlet A is connected with the oil outlet B through an oil pipe A, the oil outlet A is connected with an oil inlet passage opened on the frame through an oil pipe B, the oil inlet B is connected with an oil outlet passage opened on the frame through an oil pipe C, the oil pipe A and the oil pipe B are respectively connected with two oil outlet ends of the three-way solenoid valve, the elastic member is sleeved on the push rod B and its two ends are respectively fixedly connected with the push plate B and the hydraulic cylinder, and the two ends of the linear motion member A are respectively fixedly connected with the push plate B and the hydraulic cylinder.

[0020] Further technical solution: a handshake is symmetrically installed on the frame, and a pressure sensor for detecting the tensile force or torsional tensile force of the cable is installed between the push rod A and the pin.

[0021] Further technical solution: Handshakes are symmetrically installed on the frame, and the handshakes are located directly below the column.

[0022] A cable fault detection method, using the above cable fault detection device, comprises the following steps:

[0023] S1. Under the action of the torsion spring, the semicircular clamp A and the semicircular clamp B are in an open state. At this time, the limit rod is inserted into the through hole provided on the support block, and the three-way solenoid valve is opened to make the oil pipe A unblocked. At this time, the linear motion part A is started to pull the push plate B to push the push rod B to drive the piston column B to slide in the cavity C, and the oil in the cavity E is introduced into the cavity D. At this time, the push plate B pulls the limit rod to drive the support block to move linearly until the semicircular clamp A and the semicircular clamp B are closed, and the pressure sensor B located between the semicircular clamp A and the semicircular clamp B detects that the extrusion pressure between the two is within the extrusion pressure threshold;

[0024] S2, after the semicircular clamping member A and the semicircular clamping member B are completely closed, the push plate A is pushed to drive the Y-shaped push plate to slide along the limit groove, so that the plug block is inserted into the slot, and the semicircular clamping member A and the semicircular clamping member B are limited. At this time, the limit rod is reset and separated from the support block, that is, the semicircular clamping member A and the semicircular clamping member B are transformed from the open state to the closed state. After the semicircular clamping member A and the semicircular clamping member B are closed, the two semicircular gears are also closed. At this time, the linear motion member B is started to cause the detection copper pole block and the pressure block to move centripetally, and the cable is clamped for detection processing;

[0025] S3, after the detection is completed, the linear moving part A is reset, and the three-way solenoid valve is controlled to make the oil pipe B and the oil pipe C unobstructed, and the linear moving part A is started again, so that the piston column B slides in the cavity C, and the oil in the cavity E is introduced into the cavity A through the pipeline oil pipe B, and then the piston column A is pushed along the sliding cavity B to perform linear movement. The sliding cavity B pushes the push rod A to drive the pin to perform linear movement, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, that is, the two fixed detection mechanisms are prompted to perform linear movement in opposite directions, and a tensile test is performed on the cable or the reconnected cable, and its tensile force information is obtained through the pressure sensor A. If the tensile force information obtained is within the tensile force threshold, the cable can still work normally, which indicates that the cable is qualified in the tensile test. At this time, the two fixed detection mechanisms are reset;

[0026] S4. Start the motor to push the flat gear to rotate, and the flat gear pushes the semicircular gear to rotate, thereby realizing the twisting of the cable. The twisting angle is detected by the angle sensor installed on the semicircular gear. After the rotation angle of the semicircular gear reaches the preset angle threshold, start the linear motion part A to make the piston column B slide in the cavity C, and make the oil in the cavity E be introduced into the cavity A through the pipeline oil pipe B, thereby pushing the piston column A to move linearly along the sliding cavity B. The sliding cavity B pushes the push rod A to drive the pin to move linearly, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, so that the two fixed detection mechanisms perform linear motion in opposite directions, so as to realize the twisting and stretching test of the cable, and detect its twisting and stretching force information through the pressure sensor A. If the obtained twisting and stretching force information is within the twisting and stretching force threshold, the cable can still work, which indicates that the cable is qualified in the twisting and stretching force test, that is, the cable is of qualified quality and does not need to be reconnected.

[0027] The present invention provides a cable fault detection device and a detection method thereof, which have the following beneficial effects compared with the prior art:

[0028] 1. In the present invention, the driving mechanism can drive the fixed detection mechanism to clamp and limit the cable, and then cooperate with the cable fault detector to detect the cable fault. At the same time, the detection components in the two groups of fixed detection mechanisms can not only cooperate with each other to clamp the cable but also drive the clamped cable to twist. Under the condition that the driving mechanism can drive the two groups of fixed detection mechanisms to perform linear motion in opposite directions, the fixed detection mechanism and the driving mechanism cooperate to complete the tensile test of the cable and the verification of the conductivity under the twisting tensile test conditions, thereby realizing the quality verification of the connection or the section of cable after the cable fault is repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 3 It is an overall schematic diagram of the fixed detection mechanism of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the limiting component of the present invention.

[0033] Figure 5 It is a schematic diagram of the structure of the detection component of the present invention.

[0034] Figure 6 It is a structural schematic diagram of the floating assembly of the present invention.

[0035] Figure 7It is a partial structural schematic diagram of the driving mechanism of the present invention.

[0036] Figure 8 For the present invention Figure 2 A-section structure enlarged schematic diagram.

[0037] In the figure: 1, frame; 2, frame; 3, cover plate; 4, fixed detection mechanism; 401, semicircular ring clamping piece A; 402, semicircular ring clamping piece B; 403, pin shaft; 404, support block; 4041, slide bar; 4042, limit slot; 405, limit assembly; 4051, plug block; 4052, Y-shaped push plate; 4053, push plate A; 4054, slot; 406, detection assembly; 4061, semicircular gear; 4062, motor; 4063, flat gear; 4064, detection copper pole block; 4065, pressing block; 4066, installation slot; 4067, floating assembly; 4 0671, annular baffle; 40672, elastic telescopic column; 5, driving mechanism; 501, limit rod; 502, cylinder column; 503, limit push column; 504, sliding cavity A; 505, push rod A; 506, piston column A; 507, sliding cavity B; 508, oil inlet channel; 509, oil outlet channel; 510, push plate B; 511, hydraulic cylinder; 512, linear motion part A; 513, piston column B; 514, push rod B; 515, elastic part; 516, three-way solenoid valve; 517, oil outlet A; 518, oil outlet B; 519, oil inlet A; 520, oil inlet B; 6, handshake. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0040] Example 1

[0041] See also Figures 1 to 8 , provided in one embodiment of the present invention, is a cable fault detection device, comprising a rack 1 and a frame 2, wherein the frame 2 is fixedly connected below the rack 1, and a cover plate 3 is detachably mounted on the frame 2, and further comprising:

[0042] The fixed detection mechanism 4 is provided with two groups and is symmetrically mounted on the frame 1, and is used for fixed detection of a section of cable;

[0043] The driving mechanism 5 is installed on the frame 2 and is used to drive the fixed detection mechanism 4 to clamp the cable for detection or drive two groups of fixed detection mechanisms 4 to perform linear motion in opposite directions to perform tensile stress and twisting tensile stress detection on the reconnected cable;

[0044] The fixed detection mechanism 4 includes a semicircular clamping member A401, a semicircular clamping member B402, a pin 403 and a support block 404. The semicircular clamping member B402 is hinged on the semicircular clamping member A401 through the pin 403. The semicircular clamping member B402 is fixedly connected to the pin 403. The pin 403 is connected to the push rod A505 in the driving mechanism 5. The two ends of the support block 404 are respectively fixed. A slide bar 4041 is connected to the semicircular clamp A401 and the semicircular clamp B402 for limited sliding. The support block 404 is a trapezoidal slider and its two sides correspond to the lower sides of the semicircular clamp A401 and the semicircular clamp B402. A torsion spring (not shown in the figure) is installed on the pin 403 to enable the semicircular clamp A401 and the semicircular clamp B402 to reset themselves. It also includes:

[0045] The limiting assembly 405 is installed on the supporting block 404 and is used to limit the openings of the semicircular clamping member A401 and the semicircular clamping member B402;

[0046] The detection component 406 is correspondingly mounted on the semicircular clamping member A401 and the semicircular clamping member B402, and is used to clamp the cable and cause the clamped cable to be twisted;

[0047] Among them, the limiting component 405 includes an insert block 4051, a Y-shaped push plate 4052, a push plate A4053 and a slot 4054, the insert block 4051 is fixedly connected to the Y-shaped push plate 4052, the Y-shaped push plate 4052 is slidably matched with the limiting groove 4042 provided on the support block 404, the push plate A4053 is fixedly connected to the upper end of the Y-shaped push plate 4052, the insert block 4051 is used in conjunction with the slot 4054 provided at the lower part of the semicircular clamp A401, the support block 404 is provided with a through hole (not marked in the figure) for inserting the limiting rod 501, under the action of the torsion spring, the semicircular clamp A401 and the semicircular clamp B402 are in an open state, at this time, the limiting rod 501 is inserted The semicircular clamping member A401 and the semicircular clamping member B402 are inserted into the through hole formed on the support block 404. Under the action of the driving mechanism 5, the limiting rod 501 drives the support block 404 to perform linear movement in the vertical direction, that is, the semicircular clamping member A401 and the semicircular clamping member B402 are forced to close. After the semicircular clamping member A401 and the semicircular clamping member B402 are completely closed, the push plate A4053 is pushed to drive the Y-shaped push plate 4052 to slide along the limiting groove 4042, so that the insert block 4051 is inserted into the slot 4054, and the semicircular clamping member A401 and the semicircular clamping member B402 are limited. At this time, the limiting rod 501 is reset and separated from the support block 404, that is, the semicircular clamping member A401 and the semicircular clamping member B402 are transformed from the open state to the closed state.

[0048] Wherein, the detection component 406 includes a semicircular gear 4061, a motor 4062, a flat gear 4063, a detection copper pole block 4064, a pressing block 4065 and a mounting slot 4066, the semicircular gear 4061 is slidably matched with the mounting slot 4066 provided on the semicircular ring clamp B402, a floating component 4067 is arranged between the inner step of the semicircular gear 4061 and the inner wall of the mounting slot 4066 to enable the semicircular gear 4061 to have a floating space in the horizontal direction, the motor 4062 is detachably mounted on the semicircular ring clamp A401 and a flat gear 4063 meshing with the semicircular gear 4061 is fixedly connected to its output shaft, the detection copper pole block 4064 and two pressing blocks 4065 are equidistantly mounted on the semicircular gear 4061, and the detection copper pole block 4064 and the pressing block 4065 are both provided with a flat gear meshing with the semicircular gear 4061 61, the floating assembly 4067 includes an annular baffle 40671 and an elastic telescopic column 40672, the annular baffle 40671 is attached to the outer side of the semicircular gear 4061, the elastic telescopic column 40672 fixedly connected to the annular baffle 40671 is fixedly connected to the inner wall of the mounting slot 4066, after the semicircular clamping piece A401 and the semicircular clamping piece B402 are closed, the two semicircular gears 4061 are also closed, at this time, the linear moving piece B is started to prompt the detection copper pole block 4064 and the pressing block 4065 to move centripetally, and the cable is clamped for detection and processing. After the detection is completed, if the cable has a fault, after reconnection, the technician can start the motor 4062 to drive the flat gear 4063 to rotate, and the flat gear 4063 drives the semicircular gear 4061 to rotate, thereby realizing the twisting processing of the cable;

[0049] The driving mechanism 5 includes a limit rod 501, a cylinder 502, a limit push column 503, a sliding cavity A504, a push rod A505, a piston column A506 and a sliding cavity B507. The limit rod 501 is fixedly connected to the limit push column 503. The limit push column 503 slides with the sliding cavity A504 provided on the cylinder 502. The cylinder 502 slides with a slide groove (not shown) provided on the frame 1. The push rod A505 slides with the sliding cavity B507 provided on the frame 1. One end of the push rod A505 is fixedly connected to the piston column A506. The other end of the push rod A505 is fixedly connected to the pin 403. The piston column A506 divides the sliding cavity B507 into a cavity A and a cavity B. The driving mechanism 5 also includes:

[0050] A driving assembly, mounted on the frame 2, is used to drive the piston column A506 to push the push rod A505 to perform linear motion or to drive the cylinder column 502 to perform linear motion along the length direction of the slide slot and maintain the position of the cylinder column 502;

[0051] The driving assembly includes a push plate B510, a hydraulic cylinder 511, a linear motion part A512, a piston column B513, a push rod B514 and an elastic part 515. The push plate B510 is fixedly connected to the cylinder column 502, the hydraulic cylinder 511 is fixedly connected to the frame 2, one end of the push rod B514 is fixedly connected to the push plate B510, the other end of the push rod B514 extends into the hydraulic cylinder 511 and is fixedly connected to the piston column B513 slidably arranged in the hydraulic cylinder 511, the piston column B513 divides the internal cavity C of the hydraulic cylinder 511 into cavity D and cavity E, the three-way solenoid valve 516 is embedded in the bottom of the hydraulic cylinder 511 and is connected to the cavity E, and the hydraulic cylinder 511 is provided with a Oil outlet A517, oil outlet B518, oil inlet A519 and oil inlet B520, the oil inlet A519 is connected with the oil outlet B518 through the oil pipe A, the oil outlet A517 is connected with the oil inlet passage 508 opened on the frame 1 through the oil pipe B, the oil inlet B520 is connected with the oil outlet passage 509 opened on the frame 1 through the oil pipe C, the oil pipe A and the oil pipe B are respectively connected to the two oil outlet ends of the three-way solenoid valve 516, the elastic member 515 is sleeved on the push rod B514 and its two ends are respectively fixedly connected with the push plate B510 and the hydraulic cylinder 511, the two ends of the linear motion member A512 are respectively fixedly connected with the push plate B510 and the hydraulic cylinder 511, first open Start the three-way solenoid valve 516 to make the oil pipe A unblocked. At this time, the technician starts the linear motion part A512 to pull the push plate B510 to push the push rod B514 to drive the piston column B513 to slide in the cavity C, and introduce the oil in the cavity E into the cavity D. At this time, the push plate B510 pulls the limit rod 501 to drive the support block 404 to move linearly until the semi-circular clamp A401 and the semi-circular clamp B402 are closed (the pressure sensor B located between the semi-circular clamp A401 and the semi-circular clamp B402 detects that the extrusion pressure between the two is within the extrusion pressure threshold). At this time, start the limit component 405 to limit the semi-circular clamp A401 and the semi-circular clamp B402, and wait. After the detection copper pole block 4064 and the pressure block 4065 in the fixed detection component 406 squeeze and limit the cable, the linear moving part A512 is reset. At this time, the three-way solenoid valve 516 is controlled to make the oil pipes B and C unobstructed, and the linear moving part A512 is started again, so that the piston column B513 slides in the cavity C, and the oil in the cavity E is introduced into the cavity A through the pipeline oil pipe B, and then the piston column A506 is pushed along the sliding cavity B507 to perform linear movement. The sliding cavity B507 pushes the push rod A505 to drive the pin shaft 403 to perform linear movement, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, that is, the two fixed detection mechanisms 4 are prompted to perform linear movement in opposite directions.

[0052] Preferably, a pressure sensor for detecting the tensile force or torsional tensile force of the cable is installed between the push rod A505 and the pin shaft 403.

[0053] Preferably, a handshake 6 is symmetrically mounted on the frame 2 and is located directly below the cylinder 502. The purpose of this arrangement is to facilitate the technician to hold the device and to drive the device to operate after the linear moving part A fails.

[0054] In the embodiment of the present invention, under the action of the torsion spring, the semi-circular ring clamp A401 and the semi-circular ring clamp B402 are in an open state. At this time, the limit rod 501 is inserted into the through hole provided on the support block 404, and the three-way solenoid valve 516 is opened to make the oil pipe A unblocked. At this time, the technician starts the linear motion part A512 to pull the push plate B510 to push the push rod B514 to drive the piston column B513 to slide in the cavity C, and the oil in the cavity E is introduced into the cavity D. At this time, the push plate B510 pulls the limit rod 501 to drive the support block 404 to perform linear motion until the semi-circular ring clamp A401 and the semi-circular ring clamp B402 are closed (the pressure sensor B located between the semi-circular ring clamp A401 and the semi-circular ring clamp B402 detects that the pressure sensor B is between the semi-circular ring clamp A401 and the semi-circular ring clamp B402). When the extrusion pressure between the two is within the extrusion pressure threshold), after the semi-circular clamp A401 and the semi-circular clamp B402 are completely closed, the push plate A4053 is pushed to drive the Y-shaped push plate 4052 to slide along the limiting groove 4042, prompting the insert block 4051 to be inserted into the slot 4054, and the semi-circular clamp A401 and the semi-circular clamp B402 are limited. At this time, the limiting rod 501 is reset and separated from the support block 404, that is, the semi-circular clamp A401 and the semi-circular clamp B402 are transformed from the open state to the closed state. After the semi-circular clamp A401 and the semi-circular clamp B402 are closed, the two semi-circular gears 4061 are also closed. At this time, the linear motion part B is started to prompt the detection copper pole block 40 64 and the pressing block 4065 move centripetally to clamp the cable for detection. After the detection is completed, the linear motion member A512 is reset. At this time, the three-way solenoid valve 516 is controlled to make the oil pipes B and C unobstructed, and the linear motion member A512 is started again to make the piston column B513 slide in the cavity C, so that the oil in the cavity E is introduced into the cavity A through the pipeline oil pipe B, and then the piston column A506 is pushed along the sliding cavity B507 to perform linear movement. The sliding cavity B507 pushes the push rod A505 to drive the pin 403 to perform linear movement, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, that is, the two fixed detection mechanisms 4 are prompted to perform linear movement in opposite directions, and the cable or the reconnected cable is tested. A tensile test is performed, and its tensile force information is obtained through the pressure sensor A. If the tensile force information obtained is within the tensile force threshold, and the cable can still work normally, it means that the cable is of qualified quality in the tensile test. At this time, the two fixed detection mechanisms 4 are reset, and then the motor 4062 is started to drive the flat gear 4063 to rotate, and the flat gear 4063 drives the semicircular gear 4061 to rotate, so as to achieve the twisting of the cable (the twisting angle is detected by the angle sensor installed on the semicircular gear 4061). After the rotation angle of the semicircular gear 4061 reaches the preset angle threshold, the linear motion part A512 is started to drive the piston column B513 to slide in the cavity C, so as to drive the oil in the cavity E to be introduced into the cavity A through the pipeline oil pipe B.Then the piston column A506 is pushed to move linearly along the sliding cavity B507. The sliding cavity B507 pushes the push rod A505 to drive the pin 403 to move linearly. At the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, which prompts the two fixed detection mechanisms 4 to move linearly in opposite directions, that is, to achieve the twisting and stretching test of the cable, and detect its twisting and stretching force information through the pressure sensor A. If the twisting and stretching force information obtained is within the twisting and stretching force threshold, the cable can still work, which means that the cable has passed the twisting and stretching force test, that is, the cable quality is qualified and no reconnection is required.

[0055] Example 2

[0056] A cable fault detection method, using the cable fault detection device of embodiment 1, comprises the following steps:

[0057] S1. Under the action of the torsion spring, the semi-circular clamp A401 and the semi-circular clamp B402 are in an open state. At this time, the limit rod 501 is inserted into the through hole provided on the support block 404, and the three-way solenoid valve 516 is opened to make the oil pipe A unblocked. At this time, the linear motion part A512 is started to pull the push plate B510 to push the push rod B514 to drive the piston column B513 to slide in the cavity C, and the oil in the cavity E is introduced into the cavity D. At this time, the push plate B510 pulls the limit rod 501 to drive the support block 404 to perform linear movement until the semi-circular clamp A401 and the semi-circular clamp B402 are closed, and the pressure sensor B located between the semi-circular clamp A401 and the semi-circular clamp B402 detects that the extrusion pressure between the two is within the extrusion pressure threshold;

[0058] S2, after the semicircular clamp A401 and the semicircular clamp B402 are completely closed, push the push plate A4053 to drive the Y-shaped push plate 4052 to slide along the limiting groove 4042, prompting the insert block 4051 to be inserted into the slot 4054, and limit the semicircular clamp A401 and the semicircular clamp B402. At this time, the limiting rod 501 is reset and separated from the support block 404, that is, the semicircular clamp A401 and the semicircular clamp B402 are transformed from the open state to the closed state. After the semicircular clamp A401 and the semicircular clamp B402 are closed, the two semicircular gears 4061 are also closed. At this time, the linear motion part B is started to prompt the detection copper pole block 4064 and the pressure block 4065 to move centripetally to clamp the cable for detection;

[0059] S3, after the detection is completed, the linear moving part A512 is reset. At this time, the three-way solenoid valve 516 is controlled to make the oil pipes B and C unobstructed, and the linear moving part A512 is started again to make the piston column B513 slide in the cavity C, so that the oil in the cavity E is introduced into the cavity A through the pipeline oil pipe B, and then the piston column A506 is pushed along the sliding cavity B507 to perform linear movement. The sliding cavity B507 pushes the push rod A505 to drive the pin 403 to perform linear movement, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, that is, the two fixed detection mechanisms 4 are prompted to perform linear movement in opposite directions, and a tensile test is performed on the cable / reconnected cable, and its tensile force information is obtained through the pressure sensor A. If the obtained tensile force information is within the tensile force threshold, the cable can still work normally, which indicates that the cable is qualified in the tensile test. At this time, the two fixed detection mechanisms 4 are reset;

[0060] S4, start the motor 4062 to push the flat gear 4063 to rotate, and the flat gear 4063 pushes the semicircular gear 4061 to rotate, so as to achieve the twisting of the cable. The twisting angle is detected by the angle sensor installed on the semicircular gear 4061. After the rotation angle of the semicircular gear 4061 reaches the preset angle threshold, start the linear motion part A512 to make the piston column B513 slide in the cavity C, and make the oil in the cavity E be introduced into the cavity A through the pipeline oil pipe B, so as to push the piston column A506 along the sliding cavity B507 Perform linear motion, the sliding cavity B507 pushes the push rod A505 to drive the pin 403 to perform linear motion, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, that is, the two fixed detection mechanisms 4 are prompted to perform linear motion in opposite directions, that is, to achieve the torsional tensile test of the cable, and detect its torsional tensile force information through the pressure sensor A. If the obtained torsional tensile force information is within the torsional tensile force threshold, the cable can still work, which indicates that the cable has passed the torsional tensile force test, that is, the cable quality is qualified and there is no need to reconnect.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cable fault detection device, comprising a rack (1) and a frame (2), wherein the frame (2) is fixedly connected to the bottom of the rack (1), and a cover plate (3) is detachably mounted on the frame (2), characterized in that: Also includes: A fixed detection mechanism (4), which is provided with two groups and is symmetrically mounted on the frame (1) and is used for performing fixed detection on a section of cable; A driving mechanism (5) is mounted on the frame (2) and is used to drive the fixed detection mechanism (4) to clamp the cable for detection or to drive two sets of fixed detection mechanisms (4) to perform linear motion in opposite directions to perform tensile stress and twisting tensile stress detection on the reconnected cable; The fixed detection mechanism (4) comprises a semicircular ring clamping member A (401), a semicircular ring clamping member B (402), a pin (403) and a support block (404); the semicircular ring clamping member B (402) is hinged on the semicircular ring clamping member A (401) through the pin (403); the semicircular ring clamping member B (402) is fixedly connected to the pin (403); the pin (403) is connected to a push rod A (505) in the driving mechanism (5); and the two ends of the support block (404) are respectively fixedly connected to slide rods (4041) that are limitedly slidable with the semicircular ring clamping member A (401) and the semicircular ring clamping member B (402); and further comprises: A limiting assembly (405), mounted on the support block (404), for limiting the openings of the semicircular ring clamping member A (401) and the semicircular ring clamping member B (402); The detection assembly (406) is correspondingly mounted on the semicircular clamping member A (401) and the semicircular clamping member B (402), and is used to clamp the cable and cause the clamped cable to be twisted.

2. The cable fault detection device according to claim 1, characterized in that: The support block (404) is a trapezoidal slider and its two side edges correspond to the lower side edges of the semicircular clamping piece A (401) and the semicircular clamping piece B (402). The pin shaft (403) is provided with a torsion spring for enabling the semicircular clamping piece A (401) and the semicircular clamping piece B (402) to reset themselves.

3. The cable fault detection device according to claim 2, characterized in that: The limiting assembly (405) comprises an insert block (4051), a Y-shaped pushing plate (4052), a push plate A (4053) and a slot (4054); the insert block (4051) is fixedly connected to the Y-shaped pushing plate (4052); the Y-shaped pushing plate (4052) is slidably matched with a limiting slot (4042) provided on the supporting block (404); the push plate A (4053) is fixedly connected to the upper end of the Y-shaped pushing plate (4052); the insert block (4051) is used in conjunction with a slot (4054) provided at the lower part of the semicircular clamping member A (401); and a through hole for inserting a limiting rod (501) is provided on the supporting block (404).

4. The cable fault detection device according to claim 3, characterized in that: The detection assembly (406) comprises a semicircular gear (4061), a motor (4062), a flat gear (4063), a detection copper pole block (4064), a pressing block (4065) and a mounting slot (4066); the semicircular gear (4061) is slidably matched with the mounting slot (4066) provided on the semicircular ring clamping member B (402); a groove is provided between the inner side step of the semicircular gear (4061) and the inner wall of the mounting slot (4066) to enable the semicircular gear (4061) to have a horizontal floating The motor (4062) is detachably mounted on a semicircular clamping member A (401) and its output shaft is fixedly connected with a flat gear (4063) meshing with a semicircular gear (4061); the detection copper pole block (4064) and two pressure blocks (4065) are equidistantly mounted on the semicircular gear (4061); and the detection copper pole block (4064) and the pressure blocks (4065) are both mounted with a linear motion member B fixedly connected with the semicircular gear (4061).

5. The cable fault detection device according to claim 4, characterized in that: The floating assembly (4067) includes an annular baffle (40671) and an elastic telescopic column (40672), wherein the annular baffle (40671) is attached to the outer side of the semicircular gear (4061), and the elastic telescopic column (40672) fixedly connected to the annular baffle (40671) is fixedly connected to the inner wall of the mounting slot (4066).

6. The cable fault detection device according to claim 5, characterized in that: The driving mechanism (5) comprises a limit rod (501), a cylinder (502), a limit push rod (503), a sliding cavity A (504), a push rod A (505), a piston column A (506) and a sliding cavity B (507), wherein the limit rod (501) is fixedly connected to the limit push rod (503), the limit push rod (503) and the sliding cavity A (504) provided on the cylinder (502) are limitedly slidable, and the cylinder (50 2) slidingly cooperates with a slide groove provided on the frame (1), the push rod A (505) and the slide cavity B (507) provided on the frame (1) slide in a limited manner, one end of the push rod A (505) is fixedly connected to the piston column A (506), the other end of the push rod A (505) is fixedly connected to the pin (403), and the piston column A (5066) divides the slide cavity B (507) into a cavity A and a cavity B; and further comprises: The driving assembly is mounted on the frame (2) and is used to drive the piston column A (506) to push the push rod A (505) to perform linear motion or to drive the cylinder column (502) to perform linear motion along the length direction of the slide groove and maintain the position of the cylinder column (502).

7. The cable fault detection device according to claim 6, characterized in that: The driving assembly comprises a push plate B (510), a hydraulic cylinder (511), a linear motion part A (512), a piston column B (513), a push rod B (514), an elastic part (515) and a three-way solenoid valve (516); the push plate B (510) is fixedly connected to the cylinder column (502); the hydraulic cylinder (511) is fixedly connected to the frame (2); one end of the push rod B (514) is fixedly connected to the push plate B (510); the other end of the push rod B (514) extending into the hydraulic cylinder (511) is fixedly connected to the piston column B (513) slidably arranged in the hydraulic cylinder (511); the piston column B (513) divides the internal cavity C of the hydraulic cylinder (511) into cavity D and cavity E; the three-way solenoid valve (516) is embedded and installed at the bottom of the hydraulic cylinder (511) and is connected to cavity E; the hydraulic cylinder ( An oil outlet A (517), an oil outlet B (518), an oil inlet A (519) and an oil inlet B (520) are provided on the frame (1). The oil inlet A (519) is connected to the oil outlet B (518) through an oil pipe A. The oil outlet A (517) is connected to an oil inlet passage (508) provided on the frame (1) through an oil pipe B. The oil inlet B (520) is connected to an oil outlet passage (509) provided on the frame (1) through an oil pipe C. The oil pipe A and the oil pipe B are respectively connected to two oil outlet ends of a three-way solenoid valve (516). The elastic member (515) is sleeved on the push rod B (514) and its two ends are respectively fixedly connected to the push plate B (510) and the hydraulic cylinder (511). The two ends of the linear motion member A (512) are respectively fixedly connected to the push plate B (510) and the hydraulic cylinder (511).

8. The cable fault detection device according to claim 7, characterized in that: A pressure sensor for detecting the tensile force or torsional tensile force of the cable is installed between the push rod A (505) and the pin shaft (403).

9. The cable fault detection device according to claim 1, characterized in that: A handshake (6) is symmetrically mounted on the frame (2), and the handshake (6) is located directly below the column (502).

10. A cable fault detection method, using the cable fault detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Under the action of the torsion spring, the semicircular clamping member A (401) and the semicircular clamping member B (402) are in an open state. At this time, the limit rod (501) is inserted into the through hole provided on the support block (404), and the three-way solenoid valve (516) is opened to make the oil pipe A unblocked. At this time, the linear motion member A (512) is started to pull the push plate B (510) to push the push rod B (514) to drive the piston column B (513) to slide in the cavity C, and the oil in the cavity E is introduced into the cavity D. At this time, the push plate B (510) pulls the limit rod (501) to drive the support block (404) to perform linear motion until the semicircular clamping member A (401) and the semicircular clamping member B (402) are closed, and the pressure sensor B located between the semicircular clamping member A (401) and the semicircular clamping member B (402) detects that the extrusion pressure between the two is within the extrusion pressure threshold; S2, after the semicircular clamping member A (401) and the semicircular clamping member B (402) are completely closed, the push plate A (4053) is pushed to drive the Y-shaped push plate (4052) to slide along the limiting groove (4042), so that the insert block (4051) is inserted into the slot (4054), and the semicircular clamping member A (401) and the semicircular clamping member B (402) are limited. At this time, the limiting rod (501) is reset to separate from the support block (4042). 4), that is, the semicircular clamping member A (401) and the semicircular clamping member B (402) are transformed from the open state to the closed state. After the semicircular clamping member A (401) and the semicircular clamping member B (402) are closed, the two semicircular gears (4061) are also closed. At this time, the linear motion member B is started to cause the detection copper pole block (4064) and the pressing block (4065) to move centripetally, so as to clamp the cable for detection processing; S3, after the detection is completed, the linear moving part A (512) is reset, and the three-way solenoid valve (516) is controlled to make the oil pipe B and the oil pipe C unobstructed, and the linear moving part A (512) is started again, so that the piston column B (513) slides in the cavity C, and the oil in the cavity E is introduced into the cavity A through the pipeline oil pipe B, and then the piston column A (506) is pushed along the sliding cavity B (507) to perform linear movement. The sliding cavity B (507) pushes the push rod A (505) to drive the pin (403) to perform linear movement, and at the same time, the oil in the cavity B is introduced into the cavity D through the oil pipe C, that is, the two fixed detection mechanisms (4) are prompted to perform linear movement in opposite directions, and a tensile test is performed on the cable or the reconnected cable, and its tensile force information is obtained through the pressure sensor A. If the tensile force information obtained is within the tensile force threshold, the cable can still work normally, which indicates that the cable is qualified in the tensile test. At this time, the two fixed detection mechanisms (4) are reset; S4, the start motor (4062) drives the flat gear (4063) to rotate, and the flat gear (4063) drives the semicircular gear (4061) to rotate, thereby achieving the twisting of the cable. The twisting angle is detected by the angle sensor installed on the semicircular gear (4061). After the rotation angle of the semicircular gear (4061) reaches a preset angle threshold, the linear motion part A (512) is started to cause the piston column B (513) to slide in the cavity C, causing the oil in the cavity E to be introduced into the cavity A through the pipeline oil pipe B, thereby pushing the piston column A (506) along the sliding Cavity B (507) performs linear motion, and the sliding cavity B (507) pushes the push rod A (505) to drive the pin shaft (403) to perform linear motion. At the same time, the oil in cavity B is introduced into cavity D through the oil pipe C, so that the two fixed detection mechanisms (4) perform linear motion in opposite directions, thereby realizing the twisting and stretching test of the cable, and detecting its twisting and stretching force information through the pressure sensor A. If the obtained twisting and stretching force information is within the twisting and stretching force threshold, the cable can still work, indicating that the cable has passed the twisting and stretching force test, that is, the cable is of qualified quality and does not need to be reconnected.

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