Insulating material performance detection device for electronic electric energy

Abstract

The invention provides an insulating material performance detection device for electronic and electric energy, which comprises a working table, a test shell is fixed on the working table, and a test assembly is arranged in the test shell; the clamping assembly is arranged in the circulating shell, the circulating shell is fixed to the workbench and communicates with an inner cavity of the testing shell through a connecting pipe, the clamping assembly comprises a clamping piece used for clamping a cable to be detected, and the two sides of the clamping piece are fixed to the two ends of a circulating traction rope respectively; the circulating traction rope sequentially bypasses the four guide wheels in the circulating shell to form a closed loop, the output end of the motor is fixed to the center of one guide wheel, and the circulating traction rope drives the clamping piece to move in the circulating shell, the connecting pipe and the testing shell in a closed loop state. Through the inner electrode part capable of changing the size of the contact surface of the electrode conductor and the outer electrode part capable of being self-fixed, cables of different sizes can be conveniently tested, the pretreatment assembly can form a spiral cutting groove in an insulating layer on the surface of the cable, the insulating layer of the cable can be stripped at a time, and convenience is provided for subsequent testing.

Description

Technical Field

[0001] The invention relates to the field of insulating material detection, in particular to an insulating material performance detection device for electronic electric energy. Background Art

[0002] The dielectric strength test is a key insulation material performance test method used to evaluate the breakdown voltage and tolerance of materials under the action of electric fields. The main purpose of the cable dielectric strength test is to determine the breakdown voltage of the cable insulation layer when a high voltage is applied, and to evaluate its insulation performance and safety. This test helps to find potential defects in the cable insulation layer and ensure its reliable operation ability when used for electronic power under high voltage conditions.

[0003] Generally speaking, coaxial cylindrical electrodes are used to test the dielectric strength of cables. Before testing, the outer sheath and insulation layer of the cable need to be stripped off to expose the conductor inside the cable. The inner electrode is connected to the conductor, the outer electrode is connected to the insulation layer of the cable, and then power is turned on for testing.

[0004] Traditional detection and testing equipment does not have the ability to strip the cable, or in other words, traditional cable stripping equipment must first make a circular cut and then cut again along the axis of the cable before stripping, which is a relatively cumbersome step.

[0005] At the same time, traditional coaxial electrodes are not convenient for dielectric strength testing of cables.

[0006] Therefore, in order to solve the above problems, an insulating material performance detection device for electronic power is provided. Summary of the invention

[0007] In order to solve the problem that the traditional coaxial electrode is not convenient for the dielectric strength test of the cable, the present invention provides an insulating material performance detection device for electronic power.

[0008] The present invention solves the above technical problems through the following technical solutions:

[0009] The present invention provides an insulating material performance detection device for electronic power, comprising a workbench, a test shell is fixed on the workbench, and a test assembly is arranged inside the test shell;

[0010] A clamping assembly, wherein the clamping assembly is arranged inside a circulation shell, the circulation shell is fixed on a workbench and communicated with an inner cavity of a test shell through a connecting pipe, the clamping assembly comprises a clamping member for clamping a cable to be tested, two ends of a circulation traction rope are respectively fixed on both sides of the clamping member, the circulation traction rope is passed around four guide wheels in the circulation shell in sequence to form a closed loop, an output end of a motor is fixed at the center of one of the guide wheels, and the circulation traction rope drives the clamping member to move in a closed loop state inside the circulation shell, the connecting pipe and the test shell;

[0011] A pre-processing component, wherein the pre-processing component is arranged on a connecting tube through which the cable moves, and a stripping portion in the pre-processing component forms a spiral cutting groove on the insulation layer of the cable;

[0012] The test assembly includes an electrode assembly, and the electrode assembly includes an inner electrode portion that can change the size of the contact surface of the electrode conductor and an outer electrode portion that can be self-fixed;

[0013] The connecting tube is provided with a plurality of guide limit parts, and the guide limit parts are composed of two symmetrically arranged guide parts, the two guide parts clamp the passing cable, and the two ends of the cable are clamped by the guide parts and the clamping assembly.

[0014] In the technical solution, the pretreatment assembly includes a pretreatment shell, the pretreatment shell is connected to the connecting pipe, the peeling part is arranged in the inner cavity of the pretreatment shell, the peeling part includes a bearing ring, and two symmetrically arranged cutting parts are fixed inside the bearing ring;

[0015] Furthermore, a rotating ring is sleeved and fixed on the outer side of the annular surface of the carrying ring, and a guide ring is wrapped on the surface of the rotating ring. The guide ring is fixed to the inner wall of the pretreatment shell through a connecting rod. An annular rack is fixed at the edge of the carrying ring, and a driving gear is meshed and connected to the annular rack. The driving gear is fixed to the output end of the driving motor, and the driving motor is fixed to the connecting rod.

[0016] Furthermore, the cutting part includes a lifting rod that can be extended or shortened, a fixing frame is fixed on the free end of the lifting rod, a rotatable stripping tool is installed on the fixing frame, and the stripping tool is connected to the output end of the motor, the motor is fixed on the fixing frame, and the stripping tool is inclined toward one side of the radial direction of the cable.

[0017] Furthermore, an auxiliary stripping part is provided on one side of the cutting part, and the auxiliary stripping part includes a support tube, one end of the support tube is fixed on the carrying ring, and the other end of the support tube is connected to the stripping nozzle, and the stripping nozzle is located on one side of the peeling tool. The support tube is connected to an external air pump through an air guide tube.

[0018] Furthermore, it also includes a cleaning part, which is arranged on a side of the pretreatment shell that is closer to the test shell than the peeling part. The cleaning part includes an air guide ring and a cleaning nozzle. The air guide ring is fixed on the inner wall of the pretreatment shell, and a plurality of cleaning nozzles arranged to be inclined downward are fixed on the annular surface of the air guide ring on the side close to the peeling part.

[0019] In the technical solution, guide components are arranged on both sides of the test component, and the guide components include two symmetrically arranged mounting plates, and a plurality of guide limit parts are arranged between the two mounting plates, and the guide parts constituting the guide limit parts are fixed on the mounting plates.

[0020] Furthermore, the test assembly further comprises an adjusting assembly for adjusting the position of the electrode assembly, the adjusting assembly drives the electrode assembly to move toward one side of the center of the test shell and axially along the connecting tube, and the bottom of the adjusting assembly is connected to a carrier for mounting the electrode assembly;

[0021] Furthermore, the supporting frame includes two horizontal plates and two vertical plates, the two horizontal plates are connected by two symmetrically distributed vertical plates, a slidable mounting frame is installed on the horizontal plate at the bottom, an inner electrode part and an outer electrode part are arranged on the mounting frame, and the outer electrode part is located outside the inner electrode part.

[0022] Further, the outer electrode portion includes two symmetrically arranged mounting rods, the mounting rods are fixed on the mounting frame, the ends of the mounting rods are provided with cavities distributed along the axial direction thereof, the surfaces of the mounting rods are fixed with guide vertical tubes arranged perpendicular thereto, the inner cavity of the guide vertical tubes and the cavity are interconnected to form a transmission cavity of an "L"-shaped structure, one end of a moving vertical rod is slidably connected in the inner cavity of the guide vertical tube, a conductive arc plate constituting a conductive part of the outer electrode portion is fixed on the ends of the moving vertical rods, and one end of a trigger rod is slidably connected in the cavity;

[0023] A flexible transmission part with a length compensation function, the flexible transmission part is arranged in the transmission cavity, and the two ends of the flexible transmission part are respectively connected to the trigger rod and the moving vertical rod;

[0024] The free ends of the two trigger rods can overlap with the extension rods on the two mounting plates in the guide assembly during the movement of the mounting frame. The extension rods are fixed to the side of the mounting plate on the guide assembly located on the right side of the test assembly.

[0025] Furthermore, the soft transmission part includes a plurality of transmission balls rolling inside the transmission cavity, the transmission balls are in contact with the inner wall of the transmission cavity, and the two transmission balls located in the middle are connected by a transmission telescopic rod with a length compensation function, and the transmission telescopic rod and the transmission balls connected thereto are rotationally connected.

[0026] Further, the adjustment assembly includes two bearing rods, the two bearing rods are connected to each other through a connecting plate, a first slider is fixed to the top of the bearing rod, the first slider is slidably connected to a first guide rail, the first guide rail is fixed to the top side wall of the inner cavity of the test shell, one end of a first driving rod arranged in a horizontal direction is fixed at the center of the connecting plate, and the other end of the first driving rod is fixed to the inner wall of the test shell;

[0027] The bottoms of the two bearing rods are fixed to the movable plate, the bottom side wall of the movable plate is fixed with a second slider, the second slider is slidably connected to the second guide rail, and the second guide rail is fixed to the bearing frame;

[0028] A second driving rod, the second driving rod is arranged in a horizontal direction, one end of the second driving rod is connected to the moving plate, and the other end of the second driving rod is connected to the bearing frame;

[0029] The first driving rod and the second driving rod are perpendicular to each other, and the first driving rod and the second driving rod can be extended and retracted autonomously.

[0030] Furthermore, the guide part includes a rotatable clamping wheel, a ring-shaped guide cavity is provided on the annular surface of the clamping wheel, the clamping wheel is connected to a fixed rod with a telescopic function, and a limit spring is sleeved on the fixed rod.

[0031] Furthermore, the clamping member includes a bullet-shaped clamping portion, a three-jaw chuck is fixed to the tail end of the clamping portion, one end of a synchronization rope is connected to the top and bottom of the clamping portion, the other end of the synchronization rope is connected to a connecting portion with a conical structure, the center of the tail end of the connecting portion and the center of the head end of the clamping portion are respectively connected to two ends of a circulating traction rope, and corresponding positions on the vertical plate and the carrier frame are provided with reserved grooves, which are used to move the detection component to the location to be detected on the cable.

[0032] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0033] The positive and progressive effects of the present invention are:

[0034] The inner electrode part that can change the size of the electrode conductor contact surface and the self-fixing outer electrode part facilitate testing of cables of different sizes. The deformed coaxial electrode can better test the dielectric strength of the cable insulation material.

[0035] The pretreatment component can form a spiral cutting groove on the insulation layer on the surface of the cable, which can strip the insulation layer of the cable at one time, providing convenience for subsequent testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the external structure of the present invention as a whole;

[0037] Figure 2 It is a schematic diagram of the overall internal structure of the present invention;

[0038] Figure 3 This is a schematic diagram of the internal structure of the test shell during cable testing of the present invention;

[0039] Figure 4 This is a schematic diagram of the internal structure of the test shell of the present invention;

[0040] Figure 5 This is a schematic diagram of the internal structure of the pretreatment shell of the present invention;

[0041] Figure 6 It is a schematic diagram of the structure of the peeling part of the present invention;

[0042] Figure 7 This is a schematic diagram of the position relationship between the cutting groove and the cutting tool of the present invention;

[0043] Figure 8 This is a schematic diagram of the cutting groove structure of the present invention;

[0044] Fig. 9 is a schematic diagram of an electrode assembly of the present invention;

[0045] Fig.10 For the present invention Fig. 9 A local enlarged structural schematic diagram;

[0046] Fig.11 For the present invention Fig. 9 A schematic diagram of the local enlarged structure at B;

[0047] Fig.12 This is a schematic diagram of the auxiliary connection structure of the present invention;

[0048] Fig.13 It is a schematic diagram of the side structure of the auxiliary connecting part of the present invention;

[0049] Fig.14 It is a three-dimensional schematic diagram of the clamping assembly of the present invention;

[0050] Fig.15 It is a schematic diagram of the planar structure of the clamping assembly of the present invention;

[0051] Fig.16 This is a schematic diagram of the reserved slot structure of the present invention;

[0052] Fig.17 It is a schematic diagram of the structure of the guide part of the present invention;

[0053] Fig.18 It is a schematic diagram of the structure of the clamping wheel of the present invention.

[0054] Description of Reference Numerals

[0055] 1. Workbench;

[0056] 2. Test shell;

[0057] 3. Circulation shell; 31. Right mounting shell; 32. Conducting shell; 33. Left mounting shell; 34. Guide wheel;

[0058] 4. Connecting pipe; 41. Loading shell;

[0059] 5. Pretreatment assembly; 51. Pretreatment shell; 52. Stripping unit; 521. Carrying ring; 522. Rotating ring; 523. Guide ring; 524. Driving motor; 525. Driving gear; 526. Driven annular rack; 527. Lifting rod; 527a. Fixing frame; 527b. Stripping cutter; 528. Air guide tube; 529. Support tube; 529a. Stripping nozzle; 53. Cleaning unit; 531. Air guide ring; 532. Cleaning nozzle;

[0060] 6. Adjustment assembly; 61. Bearing rod; 62. First slider; 63. First guide rail; 64. Connecting plate; 65. Moving plate; 66. Second slider; 67. Second guide rail; 68. Second driving rod; 69. First driving rod;

[0061] 7. Electrode assembly; 71. Carrying frame; 711. Horizontal plate; 712. Vertical plate; 72. Reserved slot; 73. Mounting frame; 74. Inner electrode part; 741. Placement plate; 742. Main telescopic rod; 743. Conductive plate; 744. Conductive ring; 744a. Support folding plate; 744b. Conductive ring; 745. Secondary telescopic rod; 75. Outer electrode part; 751. Mounting rod; 752. Trigger rod; 753. Transmission cavity; 754. Guide vertical tube; 755. Moving vertical rod; 756. Conductive arc plate; 757. Transmission ball; 758. Transmission telescopic rod; 759. Extension rod;

[0062] 8. Clamping assembly; 81. Clamping part; 82. Three-jaw chuck; 83. Connecting part; 84. Synchronous rope; 85. Circular traction rope;

[0063] 9. Guide assembly; 91. Mounting plate; 92. Guide portion; 921. Clamping wheel; 921a. Guide cavity; 922. Fixing rod; 923. Limit spring;

[0064] I. Cable; I1. Cutting groove. DETAILED DESCRIPTION

[0065] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0066] like Figure 1 and Figure 2 As shown, the insulating material performance testing device for electronic power includes a workbench 1, a test shell 2 is fixed on the workbench 1, and a test component is arranged inside the test shell 2. The dielectric strength test is performed by the test component, thereby testing the performance of the insulating material on the cable 1;

[0067] A clamping assembly 8, wherein the clamping assembly 8 is arranged inside the circulation shell 3, the circulation shell 3 is fixed on the workbench 1 and is connected with the inner cavity of the test shell 2 through the connecting tube 4, the clamping assembly 8 includes a clamping member for clamping the cable I to be tested, and the two ends of the circulation traction rope 85 are respectively fixed on both sides of the clamping member, and the circulation traction rope 85 is passed around the four guide wheels 34 in the circulation shell 3 in turn to form a closed loop, wherein the output end of the motor is fixed at the center of one of the guide wheels 34, and the motor is fixed inside the circulation shell 3, and the annular surface of the guide wheel 34 is recessed inward to form an annular groove, and the setting of the annular groove facilitates the clamping member to pass through the guide wheel 34, and the circulation traction rope 85 drives the clamping member to move in a closed loop state inside the circulation shell 3, the connecting tube 4 and the test shell 2, thereby driving the cable I to move, and the circulation traction rope 85 is in a tensioned state;

[0068] The end of the connecting tube 4 is provided with an open loading shell 41, through which the cable I to be tested is placed on the three-jaw chuck 82;

[0069] A pre-treatment component 5, wherein the pre-treatment component 5 is arranged on the connecting tube 4 through which the cable 1 moves, and the stripping portion 52 in the pre-treatment component 5 forms a spiral cutting groove on the insulation layer of the cable 1;

[0070] The test assembly includes an electrode assembly 7, and the electrode assembly 7 includes an inner electrode portion 74 that can change the size of the contact surface of the electrode conductor and an outer electrode portion 75 that can be self-fixed;

[0071] The connecting tube 4 is provided with a plurality of guide limit portions, which are composed of two symmetrically arranged guide portions 92. The two guide portions 92 clamp the passing cable I. The two ends of the cable I are clamped by the guide portions 92 and the clamping assembly 8. The guide portions 92 are arranged vertically.

[0072] The inner electrode part 74 that can change the size of the electrode conductor contact surface and the self-fixing outer electrode part 75 facilitate testing of cables I of different sizes. The pretreatment component 5 can form a spiral cutting groove on the insulating layer on the surface of the cable I, and can strip the insulating layer of the cable I at one time, providing convenience for subsequent testing.

[0073] Embodiment 1

[0074] As one of the embodiments in this application, Figure 5 As shown, the pretreatment assembly 5 includes a pretreatment shell 51, the pretreatment shell 51 is located between the feed shell and the test shell 2, the pretreatment shell 51 is connected to the connecting pipe 4, the peeling part 52 is arranged in the inner cavity of the pretreatment shell 51, the peeling part 52 includes a carrying ring 521, and two symmetrically arranged cutting parts are fixed inside the carrying ring 521;

[0075] A self-rotating ring 522 is sleeved and fixed on the outer side of the annular surface of the carrying ring 521, and a guide ring 523 is wrapped on the surface of the self-rotating ring 522. The guide ring 523 is fixed to the inner wall of the pretreatment shell 51 through a connecting rod. An annular rack is fixed at the edge of the carrying ring 521, and the annular rack and the carrying ring 521 are coaxially arranged. A driving gear 525 is meshed and connected to the annular rack. The driving gear 525 is a bevel gear. The driving gear 525 is fixed to the output end of the driving motor 524, and the driving motor 524 is fixed to the connecting rod.

[0076] The driving motor 524 drives the driving gear 525 to rotate. During the rotation, the driving gear 525 drives the annular rack meshing with it to rotate. At this time, the supporting ring 521 connected to the annular rack also rotates synchronously, thereby driving the two cutting parts to rotate, forming a spiral cutting groove on the surface of the moving cable I. The spiral cutting groove on the surface of the cable I can simultaneously destroy the insulating layer on the surface of the cable I in the radial and axial directions of the cable I, and can strip the insulating layer of the cable I at one time, thereby exposing the conductor inside the cable I, which is convenient for subsequent testing.

[0077] The cutting part includes a lifting rod 527 that can be extended or shortened. The lifting rod 527 is one of an electric push rod or a hydraulic rod. A fixing frame 527a is fixed to the free end of the lifting rod 527. A rotatable stripping tool 527b is installed on the fixing frame 527a. The stripping tool 527b is connected to the output end of the motor. The motor drives the stripping tool 527b to rotate to achieve cutting of the insulation layer of the cable I. The motor is fixed on the fixing frame 527a. Figure 7 As shown, the stripping tool 527b is tilted toward one side of the radial direction of the cable I, and the connection method between the fixing bracket 527a and the motor is the existing technology and is not shown in the figure.

[0078] In this embodiment, when the cable I moves to one side of the cutting portion under the drive of the clamping member, the clamping member stops moving, and the lifting rod 527 extends to drive the rotating stripping tool 527b to move toward one side of the cable I until the stripping tool 527b cuts through the insulating layer on the surface of the cable I, and then starts the driving motor 524 to make the two cutting parts perform at least one circular cutting motion on the cable I to achieve circular cutting. Subsequently, the clamping member continues to drive the cable I to move toward one side of the test shell 2, thereby forming a spiral cutting groove on the surface of the cable I, until the cable I completely passes through the cutting portion, and the stripped end of the cable I is the end to be tested.

[0079] The peeling tool 527b is a circular cutting saw blade.

[0080] An auxiliary stripping part is also provided on one side of the cutting part. There are two auxiliary stripping parts, which are respectively arranged on one side of the two cutting parts. The auxiliary stripping part includes a support tube 529. One end of the support tube 529 is fixed on the supporting ring 521. The other end of the support tube 529 is connected to the stripping nozzle 529a. The stripping nozzle 529a is located on one side of the peeling tool 527b. The support tube 529 is connected to an external air pump through an air guide tube 528.

[0081] The air pump connected to the air duct 528 can preferably be a hot air pump, that is, the wind in the air duct 528 is hot air, and the hot air is sprayed to the cut part of the cable I through the stripping nozzle 529a to blow off the insulation layer on the surface of the cable I.

[0082] The pretreatment shell 51 further includes a cleaning portion 53, which is arranged on a side of the pretreatment shell 51 closer to the test shell 2 than the peeling portion 52. The cleaning portion 53 includes an air guide ring 531 and a cleaning nozzle 532. The air guide ring 531 is concentrically arranged with the carrying ring 521. The air guide ring 531 is fixed on the inner wall of the pretreatment shell 51. A plurality of cleaning nozzles 532 arranged to be tilted downward are fixed on the annular surface of the air guide ring 531 on the side close to the peeling portion 52. The air guide ring 531 is connected to an external air pump through a pipeline, and a discharge pipe is connected to the bottom of the pretreatment shell 51.

[0083] The cut insulation layer is blown to the discharge pipe by the high-pressure airflow ejected from the cleaning nozzle 532 .

[0084] Embodiment 2

[0085] As one of the embodiments in the present application, guide assemblies 9 are provided on both sides of the test assembly, and the guide assemblies 9 include two symmetrically arranged mounting plates 91, the mounting plates 91 are arranged in a horizontal direction, and a plurality of guide limiting portions are arranged between the two mounting plates 91, and the guide portions 92 constituting the guide limiting portions are fixed on the mounting plates 91, and the symmetry planes of the two mounting plates 91 coincide with the trajectory passed by the clamping assembly 8, that is, the circulating traction rope 85 passes through the symmetry planes.

[0086] The cable I can be tensioned by the guide assembly 9 to achieve fixation of the cable I.

[0087] The test assembly further includes an adjustment assembly 6 for adjusting the position of the electrode assembly 7, the adjustment assembly 6 drives the electrode assembly 7 to move toward one side of the center of the test shell 2 and axially along the connecting tube 4, the bottom of the adjustment assembly 6 is connected to a carrier 71 for mounting the electrode assembly 7, that is, the adjustment assembly 6 drives the electrode assembly 7 to move axially and radially along the connecting tube 4 in the plane formed by the X-axis and the Y-axis;

[0088] The supporting frame 71 includes two horizontal plates 711 and two vertical plates 712. The two horizontal plates 711 are connected by two symmetrically distributed vertical plates 712. A slidable mounting frame 73 is installed on the horizontal plate 711 at the bottom. The mounting frame 73 is provided with an inner electrode part 74 and an outer electrode part 75. The outer electrode part 75 is located outside the inner electrode part 74.

[0089] The inner electrode part 74 is connected to the conductor of the cable I, the outer electrode part 75 is connected to the insulation layer of the cable I, and then power is applied to perform a dielectric strength test.

[0090] The present application does not make any structural innovation on other components of the dielectric strength tester, so other components of the dielectric strength tester are not shown in the present application.

[0091] Specifically, the outer electrode part 75 includes two symmetrically arranged mounting rods 751, which are arranged in the horizontal direction and fixed on the mounting frame 73. The end of the mounting rod 751 is provided with a cavity distributed along its axial direction. A guide vertical tube 754 arranged vertically thereto is fixed on the surface of the mounting rod 751. The inner cavity of the guide vertical tube 754 is connected with the cavity to form an "L"-shaped transmission cavity 753. One end of a moving vertical rod 755 is slidably connected in the inner cavity of the guide vertical tube 754. A conductive arc plate 756 constituting the conductive part of the outer electrode part 75 is fixed on the end of the moving vertical rod 755. Two symmetrical conductive arc plates 756 constitute the discharge point end of the outer electrode part 74. One end of a trigger rod 752 is slidably connected in the cavity.

[0092] A flexible transmission part with a length compensation function, the flexible transmission part is arranged in the transmission cavity 753, and the two ends of the flexible transmission part are respectively connected to the trigger rod 752 and the moving vertical rod 755;

[0093] The free ends of the two trigger rods 752 can respectively overlap with the extension rods 759 on the two mounting plates 91 in the guide assembly 9 during the movement of the mounting frame 73. The extension rods 759 are arranged in the horizontal direction and are fixed on the side of the mounting plate 91 on the guide assembly 9 located on the right side of the test assembly.

[0094] When the outer electrode part 75 moves toward the side where the cable I is located under the drive of the adjustment component 6, the trigger rod 752 first contacts the extension rod 759. During the continuous movement of the outer electrode part 75, the extension rod 759 pushes the trigger rod 752 to move. The trigger rod 752 pushes the moving vertical rod 755 with the conductive arc plate 756 to move toward one side of the cable I through the soft transmission part until it is tightly clamped on the insulation layer of the cable I.

[0095] Self-fixation of the outer electrode portion 75 is achieved.

[0096] Specifically, the soft transmission part includes a plurality of transmission balls 757 rolling inside the transmission cavity 753. The transmission balls 757 are in contact with the inner wall of the transmission cavity 753. The two transmission balls 757 located in the middle are connected by a transmission telescopic rod 758 with a length compensation function. The transmission telescopic rod 758 and the transmission balls 757 connected thereto are rotationally connected.

[0097] The transmission telescopic rod 758 is composed of two tubes with different diameters that are slidably connected to each other, and a spring is connected to the surface of the transmission telescopic rod 758. The two ends of the spring are respectively fixed on the surfaces of the two tubes. When the soft transmission part moves between the trigger rod 752 and the movable vertical rod 755, the transmission telescopic rod 758 does not pass through the corner of the transmission cavity 753.

[0098] The transmission is achieved by the movement of the transmission ball 757 in the transmission cavity 753.

[0099] The surface of the movable vertical rod 755 is sleeved with a spring, and the ability of the spring to overcome deformation in a normal state enables the movable vertical rod 755 to be located away from the testing position of the cable I, so that the cable I can enter conveniently.

[0100] Furthermore, the inner electrode part 74 includes a placement plate 741, which is fixed on the supporting frame 71. A main telescopic rod 742 is fixed at the center of the placement plate 741. The end of the main telescopic rod 742 is fixed to the center of a conductive plate 743 of a circular structure. The periphery of the conductive plate 743 is provided with a plurality of conductive rings 744 which are mutually sleeved in sequence. Two adjacent conductive rings 744 are connected to each other, and the conductive ring 744 closest to the conductive plate 743 is connected to the conductive plate 743. Two symmetrically arranged secondary telescopic rods 745 are fixed on the conductive ring 744. The secondary telescopic rods 745 are fixed on the placement plate 741. Springs are sleeved on the secondary telescopic rods 745 and the main telescopic rod 742. When the springs are in a normal state, all the conductive rings 744 and the conductive plate 743 together form a complete circular conductive block.

[0101] The inner electrode portion 74 and the outer electrode portion 75 move synchronously. When the inner electrode portion 74 moves toward one side of the cable I, the conductive plate 743 first reaches the exposed conductor of the cable I. Then, as the inner electrode portion 74 continues to move, the conductive ring 744 that is not in contact with the conductor continues to move under the continuous push of the placement plate 741, and the conductive rings 744 are separated from each other. The conductive ring 744 that continues to move does not conduct electricity in subsequent tests, that is, it does not participate in the test, thereby preventing the electrode connected to the conductor of the cable I from being too large or too small and affecting the test results.

[0102] In order to reduce the manufacturing process requirements of the inner electrode portion 74 , two or more auxiliary connection portions 83 are provided between two adjacent conductive rings 744 and between the conductive plate 743 and the corresponding conductive ring 744 .

[0103] The conductive connection through the auxiliary connection part 83 can reduce the requirements of the manufacturing process compared with the connection method between the conductive rings 744 and the conductive rings 744 through the annular contact surface.

[0104] The auxiliary connection part 83 includes a supporting folding plate 744a and a conductive ring 744b. The conductive ring 744b is arranged on the installation groove between two adjacent conductive rings 744. The installation groove is composed of an empty groove on the inner ring side wall of the outer conductive ring 744 and an empty groove on the outer ring side wall of the inner conductive ring 744, which are interconnected. The conductive ring 744b is fixed on the empty groove on the inner conductive ring 744 or the empty groove on the outer conductive ring 744. The support folding plate 744a is fixed inside the conductive ring 744b. The support folding plate 744a is elastic. The conductive ring 744b on the auxiliary connection part 83 between the conductive plate 743 and the corresponding conductive ring 744 is fixed at the empty groove on the conductive plate 743.

[0105] When two adjacent conductive rings 744 are in the same plane, the two conductive rings 744 are connected to each other through the conductive ring 744b to achieve conduction.

[0106] The conductive ring 744 b is composed of conductive sheets connected end to end, and the conductive ring 744 b is in an elliptical structure. The direction of the long axis of the elliptical conductive ring 744 b is parallel to the axial direction of the conductive ring 744 .

[0107] The conductive ring 744b is made of the same material as the electric contact on a common socket and has a certain ability to deform and restore deformation.

[0108] Embodiment 3

[0109] As one of the embodiments in the present application, the adjustment assembly 6 includes two bearing rods 61, the two bearing rods 61 are connected to each other through a connecting plate 64, a first slider 62 is fixed to the top of the bearing rod 61, the first slider 62 is slidably connected to a first guide rail 63, the first guide rail 63 is fixed to the top side wall of the inner cavity of the test shell 2, one end of a first driving rod 69 arranged in a horizontal direction is fixed at the center of the connecting plate 64, and the other end of the first driving rod 69 is fixed to the inner wall of the test shell 2;

[0110] The bottoms of the two bearing rods 61 are fixed to the moving plate 65, and the bottom side wall of the moving plate 65 is fixed with a second slider 66, and the second slider 66 is slidably connected to the second guide rail 67, and the second guide rail 67 is fixed to the bearing frame 71;

[0111] A second driving rod 68, wherein the second driving rod 68 is arranged in a horizontal direction, one end of the second driving rod 68 is connected to the moving plate 65, and the other end of the second driving rod 68 is connected to the bearing frame 71;

[0112] The first driving rod 69 and the second driving rod 68 are perpendicular to each other, and the first driving rod 69 and the second driving rod 68 can be extended and retracted autonomously.

[0113] By extending or shortening the first driving rod 69, the movable plate 65 is driven to move in a direction perpendicular to the axial direction of the cable I, so that the support frame 71 moves toward one side of the cable I, so that the test assembly on the support frame 71 is in the same straight line as the end of the cable I to be tested.

[0114] Then the second driving rod 68 extends, driving the test assembly on the supporting frame 71 to move toward one side of the cable I, that is, driving the outer electrode part 75 and the inner electrode part 74 to move toward one side of the cable I. At this time, the moving direction is the axial direction of the cable I.

[0115] The first driving rod 69 and the second driving rod 68 are hydraulic rods or electric push rods.

[0116] Embodiment 4

[0117] As one of the embodiments in the present application, the guide portion 92 includes a rotatable clamping wheel 921, and a guide cavity 921a with an annular shape is opened on the annular surface of the clamping wheel 921. The clamping wheel 921 is connected to a fixed rod 922 with a telescopic function, and a limiting spring 923 is sleeved on the fixed rod 922. The fixed rod 922 is composed of two tubes with different diameters that are slidably sleeved with each other, and the two ends of the limiting spring 923 are respectively fixed on the surfaces of the two tubes.

[0118] When the cable 1 passes through the two guide portions 92 driven by the clamping member, the spring on the fixing rod 922 is compressed and the cable 1 is clamped between the two guide portions 92.

[0119] Embodiment 5

[0120] As one of the embodiments in the present application, the clamping member includes a bullet-shaped clamping portion 81, a three-jaw chuck 82 is fixed to the tail end of the clamping portion 81, the top and bottom of the clamping portion 81 are connected to one end of a synchronization rope 84, the other end of the synchronization rope 84 is connected to a connecting portion 83 with a conical structure, the center of the tail end of the connecting portion 83 and the center of the head end of the clamping portion 81 are respectively connected to the two ends of a circulating traction rope 85, and corresponding positions on the vertical plate 712 and the carrier frame 71 are provided with reserved grooves 72, and the reserved grooves 72 are used to ensure that the detection component will not interfere with the synchronization rope 84 when it moves to the location to be detected on the cable I.

[0121] The guide wheel 34 connected to the motor rotates to drive the circulating traction rope 85 to move, thereby driving the entire clamping assembly 8 to move. Before the test, the clamping assembly 8 is moved to the loading shell 41, and one end of the cable I to be tested is clamped on the three-jaw chuck 82 of the clamping part 81. Then the guide wheel 34 drives the circulating traction rope 85 to continue to move. After the clamping part 81 passes through the guide limit part closest to it at this time, the guide limit part clamps the surface of the cable I in the process of movement, and the cable I is tensioned through the guide part 92 on the guide limit part.

[0122] The three-jaw chuck 82 is a common fixing component in the prior art, and its specific structure will not be described in detail in this application document.

[0123] In this application, if Figure 2 As shown, the clamping portion 81 moves in the clockwise direction.

[0124] All springs in test case 2 are insulating springs.

[0125] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A device for testing the performance of insulating materials for electronic power, comprising a workbench (1), on which a test shell (2) is fixed, characterized in that: A test component is arranged inside the test shell (2); A clamping assembly (8), wherein the clamping assembly (8) is arranged inside a circulation shell (3), wherein the circulation shell (3) is fixed on a workbench (1) and is connected to an inner cavity of a test shell (2) through a connecting tube (4), wherein the clamping assembly (8) comprises a clamping member for clamping a cable (I) to be tested, wherein two ends of a circulation traction rope (85) are respectively fixed on both sides of the clamping member, wherein the circulation traction rope (85) sequentially passes around four guide wheels (34) in the circulation shell (3) to form a closed loop, wherein an output end of a motor is fixed at the center of one of the guide wheels (34), and the circulation traction rope (85) drives the clamping member to move in a closed loop state inside the circulation shell (3), the connecting tube (4) and the test shell (2); A pre-treatment component (5), the pre-treatment component (5) being arranged on a connection tube (4) through which the cable (I) moves, and a stripping portion (52) in the pre-treatment component (5) forming a spiral cutting groove (I1) on the insulation layer of the cable (I); The test assembly comprises an electrode assembly (7), wherein the electrode assembly (7) comprises an inner electrode portion (74) capable of changing the size of the contact surface of the electrode conductor and an outer electrode portion (75) capable of self-fixation; The connecting tube (4) is provided with a plurality of guide limit parts, the guide limit parts being composed of two symmetrically arranged guide parts (92), the two guide parts (92) clamping the passing cable (I), and clamping the two ends of the cable (I) through the guide parts (92) and the clamping assembly (8).

2. The device for detecting the performance of insulating materials for electronic power as claimed in claim 1, characterized in that: The pretreatment assembly (5) comprises a pretreatment shell (51), the pretreatment shell (51) is connected to the connecting pipe (4), the peeling portion (52) is arranged in the inner cavity of the pretreatment shell (51), the peeling portion (52) comprises a bearing ring (521), and two symmetrically arranged cutting portions are fixed inside the bearing ring (521); A self-rotating ring (522) is sleeved and fixed on the outer side of the annular surface of the carrying ring (521), and a guide ring (523) is wrapped on the surface of the self-rotating ring (522). The guide ring (523) is fixed to the inner wall of the pretreatment shell (51) through a connecting rod. An annular rack is fixed at the edge of the carrying ring (521), and a driving gear (525) is meshed and connected to the annular rack. The driving gear (525) is fixed to the output end of the driving motor (524), and the driving motor (524) is fixed to the connecting rod.

3. The device for detecting the performance of insulating materials for electronic power as claimed in claim 2, characterized in that: The cutting part includes a lifting rod (527) that can be extended or shortened, a fixing frame (527a) is fixed on the free end of the lifting rod (527), a rotatable stripping tool (527b) is installed on the fixing frame (527a), and the stripping tool (527b) is connected to the output end of the motor, the motor is fixed on the fixing frame (527a), and the stripping tool (527b) is inclined toward one side of the radial direction of the cable (I).

4. The device for detecting the performance of insulating materials for electronic power as claimed in claim 3, characterized in that: An auxiliary stripping section is also provided on one side of the cutting section, and the auxiliary stripping section includes a support tube (529), one end of the support tube (529) is fixed on the supporting ring (521), and the other end of the support tube (529) is connected to a stripping nozzle (529a), and the stripping nozzle (529a) is located on one side of the peeling tool (527b), and the support tube (529) is connected to an external air pump through an air guide tube (528).

5. The device for detecting the performance of insulating materials for electronic power as claimed in claim 1, characterized in that: Guide assemblies (9) are provided on both sides of the test assembly. The guide assemblies (9) include two symmetrically arranged mounting plates (91). A plurality of guide limit portions are provided between the two mounting plates (91). The guide portions (92) constituting the guide limit portions are fixed on the mounting plates (91).

6. The device for detecting the performance of insulating materials for electronic power as claimed in claim 5, characterized in that: The test assembly further comprises an adjustment assembly (6) for adjusting the position of the electrode assembly (7), the adjustment assembly (6) driving the electrode assembly (7) to move toward one side of the center of the test shell (2) and to move axially along the connecting tube (4), the bottom of the adjustment assembly (6) being connected to a carrier frame (71) for mounting the electrode assembly (7); The support frame (71) comprises two transverse plates (711) and two vertical plates (712), wherein the two transverse plates (711) are connected via two symmetrically distributed vertical plates (712), and a slidable mounting frame (73) is mounted on the transverse plate (711) at the bottom, wherein an inner electrode portion (74) and an outer electrode portion (75) are arranged on the mounting frame (73), and the outer electrode portion (75) is located outside the inner electrode portion (74).

7. The device for detecting the performance of insulating materials for electronic power as claimed in claim 6, characterized in that: The outer electrode part (75) comprises two symmetrically arranged mounting rods (751), the mounting rods (751) being fixed on the mounting frame (73), the ends of the mounting rods (751) being provided with cavities distributed along the axial direction thereof, the surfaces of the mounting rods (751) being fixed with guide vertical tubes (754) arranged perpendicular thereto, the inner cavity of the guide vertical tubes (754) being connected with the cavity to form a transmission cavity (753) of an "L"-shaped structure, one end of a moving vertical rod (755) being slidably connected in the inner cavity of the guide vertical tubes (754), a conductive arc plate (756) constituting the conductive part of the outer electrode part (75) being fixed on the ends of the moving vertical rods (755), and one end of a trigger rod (752) being slidably connected in the cavity; A flexible transmission part with a length compensation function, the flexible transmission part is arranged in the transmission cavity (753), and two ends of the flexible transmission part are respectively connected to the trigger rod (752) and the movable vertical rod (755); The free ends of the two trigger rods (752) can respectively overlap with the extension rods (759) on the two mounting plates (91) in the guide assembly (9) during the movement of the mounting frame (73), and the extension rods (759) are fixed on the side of the mounting plate (91) on the guide assembly (9) located on the right side of the test assembly.

8. The device for detecting the performance of insulating materials for electronic power as claimed in claim 7, characterized in that: The flexible transmission part comprises a plurality of transmission balls (757) rolling inside the transmission cavity (753), wherein the transmission balls (757) are in contact with the inner wall of the transmission cavity (753), and two transmission balls (757) located in the middle are connected via a transmission telescopic rod (758) with a length compensation function, and the transmission telescopic rod (758) and the transmission balls (757) connected thereto are rotationally connected.

9. The device for detecting the performance of insulating materials for electronic power as claimed in claim 6, characterized in that: The inner electrode part (74) comprises a placement plate (741), wherein the placement plate (741) is fixed on the support frame (71), a main telescopic rod (742) is fixed at the center of the placement plate (741), the end of the main telescopic rod (742) is fixed to the center of a conductive plate (743) of a circular structure, a plurality of conductive rings (744) which are sleeved with each other are sequentially arranged on the periphery of the conductive plate (743), two adjacent conductive rings (744) are connected with each other, and the conductive ring (744) which is closest to the conductive plate (743) is connected with the conductive plate (743), two symmetrically arranged secondary telescopic rods (745) are fixed on the conductive ring (744), the secondary telescopic rods (745) are fixed on the placement plate (741), and springs are sleeved on the secondary telescopic rods (745) and the main telescopic rod (742), and when the springs are in a normal state, all the conductive rings (744) and the conductive plate (743) together form a complete circular conductive block.

10. The device for detecting the performance of insulating materials for electronic power as claimed in claim 1, characterized in that: The clamping member comprises a clamping portion (81) in the shape of a bullet, a three-jaw chuck (82) is fixed at the rear end of the clamping portion (81), one end of a synchronization rope (84) is connected to the top and bottom of the clamping portion (81), the other end of the synchronization rope (84) is connected to a connecting portion (83) in the shape of a cone, the center of the rear end of the connecting portion (83) and the center of the head end of the clamping portion (81) are respectively connected to two ends of a circulating traction rope (85), and corresponding positions on the vertical plate (712) and the carrier frame (71) are provided with reserved grooves (72), and the reserved grooves (72) are used for the detection component to move to the position to be detected of the cable (I).

Images