Combined type post insulator testing device

Abstract

The utility model belongs to the technical field of post insulator performance detection, and particularly relates to a combined post insulator test device, which comprises a tensile machine, an isolation box and a controller, the tensile machine is vertically arranged in the tensile box, the tensile box is arranged at the top of the isolation box, and the connection position of the tensile box and the isolation box is adjustable; the isolation box is of a closed structure, a vertical hinged door is arranged on the isolation box, and a post insulator mounting plate is arranged in the isolation box; a tension bar of the tensile machine penetrates through the top plate of the isolation box and is opposite to the fracture position of the post insulator, a rope tying hole is formed in the end of the tension bar, and a double-ring steel wire rope is connected to the rope tying hole. The beneficial effects of the utility model are that the device is universal for detection of a plurality of post insulators; clamping and dismounting of the post insulator can be rapidly completed, the device is suitable for strength detection of batch post insulators, and the detection efficiency is improved; the upper unit and the lower unit are separated through the steel mesh plate, the safety is good, and the safety risk that the post insulator overloads, is broken and flies out to hurt people can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of performance detection of post insulator, especially relates to a combined post insulator testing device. BACKGROUND

[0002] The post insulator is a kind of special insulating control, can play an important role in overhead transmission line, usually made of silica gel or ceramic, just called post insulator.Post insulator plays two basic roles in overhead transmission line, i.e.supporting wire and preventing current from returning to ground, and the two roles must be guaranteed, and post insulator should not fail due to flashover breakdown caused by changes in environmental and electrical load conditions, otherwise post insulator will lose its function, and damage the service life and operation of the whole line.

[0003] With the construction of China's UHV AC and DC lines and the continuous improvement of mechanical strength requirements, the problem of pure porcelain insulator is becoming more and more prominent, especially in UHV DC converter station, mainly in the following aspects: ① external insulation problem, for UHV DC, pure porcelain insulator requires a large creepage distance and structure, and too high post insulator is difficult to achieve strong bending and seismic resistance. ② Anti-seismic problem. High-voltage equipment with porcelain insulator as insulating component is called porcelain high-voltage equipment, and the anti-seismic problem of this kind of equipment has always been difficult to solve well. ③ Manufacturing quality problem. Porcelain insulator is very difficult to manufacture due to its complex process, equipment conditions and raw material quality problems.

[0004] The Chinese invention patent with application number 201310035935.9 discloses a method for detecting mechanical life influencing factors of post porcelain insulator, comprising the following steps: step 1, determining the mechanical performance measurement index of post porcelain insulator and the life influencing factors to be quantitatively evaluated; step 2: for each influencing factor, select the level range, and generate the factor level execution table; step 3: select the orthogonal table that can examine each level of the above factors, and determine the orthogonal test step; step 4: perform the related test according to the test conditions required by each test number in turn, and record the test data; step 5: analyze the test data, determine the optimal factor combination and the primary and secondary order of each influencing factor, and judge whether the effect of each factor on the index is significant; step 6: construct the mechanical life multi-influencing factor quantitative evaluation model of post porcelain insulator according to the test results. The document does not mention the specific structure of the post insulator detection test device. UTILITY MODEL CONTENTS

[0005] The utility model discloses a combined support insulator testing device which overcomes the shortcomings of the prior art, adopts an upper unit combined with a lower unit, the upper unit is a tension unit, the lower unit is an isolation unit, the length of the lower unit is adapted to the length of the support insulator, the clamping and dismounting of the support insulator can be quickly completed, the combined support insulator testing device is suitable for strength detection of batch support insulators, and the detection efficiency is improved.

[0006] To achieve the above object, the utility model discloses the following technical scheme:

[0007] The combined support insulator testing device comprises a tension machine, an isolation box and a controller, the tension machine is vertically arranged in a tension box, the tension box is arranged at the top of the isolation box, and the connection position of the tension box and the isolation box is adjustable.

[0008] Further, the lower portion of the support insulator is provided with a bogie, one end of the steel wire rope is connected to the breaking neck of the support insulator, and the other end of the steel wire rope is connected to the rope hole at the end of the tension rod through the bogie.

[0009] Further, the tension machine is an electric push rod, and the model number is FDR110-S600.

[0010] Further, the applicable specification of the support insulator is a bending torque of 4-30kN.

[0011] Further, the model number of the controller is TS-176.

[0012] Further, the flat opening door is provided with a tensioning lock.

[0013] Further, the periphery of the isolation box is enclosed by a steel wire mesh.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1) The upper unit combined with the lower unit, the upper unit is the tension unit, the lower unit is the isolation unit, the length of the lower unit is adapted to the length of the support insulator, and the combined support insulator testing device is suitable for detection of various support insulators;

[0016] 2) The clamping and dismounting of the support insulator can be quickly completed, the combined support insulator testing device is suitable for strength detection of batch support insulators, and the detection efficiency is improved;

[0017] 3) The upper unit and the lower unit are separated by the steel mesh plate, the whole device is enclosed by the steel mesh plate, the safety is good, the safety risk of the support insulator flying out due to overload and breaking can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the embodiment of the utility model.

[0019] In the drawing: 1-tension machine, 2-isolation box, 3-controller, 4-tension box, 5-pole insulator mounting plate, 6-pole insulator, 7-double ring steel wire rope, 8-truck, 9-plain door, 10-tight lock. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be described clearly and completely in connection with specific embodiments below, obviously, the described embodiments are some embodiments of the utility model, not all embodiments.

[0021] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the specific embodiments needed to be used in the description of specific embodiment or prior art will be simply introduced below, obviously, the specific embodiments in the following description are some embodiments of the utility model, and other specific embodiments can also be obtained by those skilled in the art without creative labor on the premise of the specific embodiments.

[0022] The components of the embodiments of the utility model described and shown in the specific embodiments here can be arranged and designed in numerous different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the specific embodiments is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0023] See Figure 1 , it is the structural schematic diagram of the embodiment of the utility model combined pole insulator test device, including tension machine 1, isolation box 2 and controller 3, tension machine 1 is vertically arranged in tension box 4, tension box 4 is arranged at the top of isolation box 2, and the connecting position of tension box 4 and isolation box 2 is adjustable;The isolation box 2 is of closed structure, and the pole insulator mounting plate 5 is arranged in the isolation box 2;The periphery of isolation box 2 is closed by steel wire mesh. The isolation box 2 is provided with a plain door 9, and the plain door is provided with a tight lock 10, which facilitates the mounting and dismounting of the pole insulator 6 and does not affect the protection function, and can prevent the broken objects from flying out and injuring people.

[0024] The utility model embodiment is used for the breakage of pole insulator under the upward stress, and the tension rod of tension machine 1 passes through the top plate of isolation box 2 and is opposite to the breakage position of pole insulator 6, the end of tension rod is provided with a rope hole, one end of double ring steel wire rope 7 is connected to the rope hole, the other end of double ring steel wire rope 7 is sleeved on the breakage neck of pole insulator, tension machine 1 is operated until pole insulator 6 is pulled off, and the breakage force value is recorded.

[0025] The utility model embodiment is used to the insulator of support post is forced to break down to the downward, the tension rod of tension machine 1 passes the roof of isolated box 2 and is opposite to the break position of insulator of support post 6, the tension rod end is equipped with the bolt rope hole, the bolt rope hole connects one end of double ring steel wire rope 7, the other end of double ring steel wire rope 7 is around the broken neck of insulator of support post 6 and is set on, operates tension machine 1 until insulator of support post 6 is pulled and is broken, and records the break force value.

[0026] In the above embodiment, the tension machine 1 is an electric push rod, and the model is FDR110-S600. Its function is to apply a test force to the test object. The applicable specification of the insulator of support post 6 is a bending torque of 4-30 kN. The controller 3 is a model TS-176, and its function is to automatically complete the test process according to the set test parameters.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A combined test device for post insulators, characterized in that, The device includes a tensile testing machine, an isolation box, and a controller. The tensile testing machine is vertically installed inside the tensile testing box, which is located on top of the isolation box. The connection position between the tensile testing box and the isolation box is adjustable. The isolation box is a closed structure with a swing door on top. Inside the isolation box is a mounting plate for a post insulator. The tension rod of the tensile testing machine passes through the top plate of the isolation box and is opposite to the breakage position of the post insulator. The end of the tension rod has a rope-tying hole, and a double-ring steel wire rope is connected to the rope-tying hole.

2. The combined post insulator testing device according to claim 1, characterized in that, A bogie is provided below the post insulator. One end of the wire rope is connected to the broken neck of the post insulator, and the other end of the wire rope passes around the bogie and is connected to the rope-tying hole at the end of the tension rod.

3. The combined post insulator testing device according to claim 1, characterized in that, The tensile testing machine is an electric push rod, model FDR110-S600.

4. The combined post insulator testing device according to claim 1, characterized in that, The applicable specifications for the post insulator are bending torque of 4-30kN.

5. The combined post insulator testing device according to claim 1, characterized in that, The controller is model TS-176.

6. The combined post insulator testing device according to claim 1, characterized in that, The swing door is equipped with a pull lock.

7. The combined post insulator testing device according to claim 1, characterized in that, The isolation box is surrounded by wire mesh.

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