Withstand voltage test device for intermediate joint of high-voltage cable

Abstract

The utility model discloses a high-voltage cable intermediate joint withstand voltage test device, which is provided with a base, end seat plates are vertically arranged at the tops of two ends of the base respectively, two vertically arranged intermediate seat plates are arranged in the middle of the upper surface of the base, and a seat pier for placing an intermediate joint is also arranged between the two intermediate seat plates; a front guide polished rod and a rear guide polished rod are arranged between the two end seat plates, a left pulling plate is arranged on the left sides of the two guide polished rods in a penetrating manner, a right pulling plate is arranged on the right sides of the two guide polished rods in a penetrating manner, and cable fixing clamps are arranged on the left side and the right side of each cable hole; four sets of pulling plate oil cylinders are also arranged between the two middle seat plates and are arranged at four corners of the middle seat plates; the tool is a completely self-designed tool for the butt-joint voltage-withstanding test of the intermediate joint of the high-voltage cable, the whole equipment is simple in structural design and easy to operate, and the butt-joint operation of the intermediate joint and the cable is time-saving, labor-saving, convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage cable test equipment technical field especially a high -voltage cable intermediate joint pressure -withstand testing device. BACKGROUND

[0002] According to the requirement of the relevant national standard of power cable line, the cable accessory must do electrical pressure resistance performance test when leaving factory, especially for large high -voltage cable accessory, more is to carry out relevant test, including power frequency withstand voltage and partial discharge test, to ensure that the electrical performance reaches the standard requirement, for example, the intermediate joint component of large high -voltage cable, this component must carry out pressure test before leaving factory, can guarantee the safe use subsequently.The existing technology is very troublesome when carrying out pressure test to this size intermediate joint, needs manual adjustment position many times to be able to with the intermediate joint of two different cable butt joint stably, and because the quality of this large size cable joint is bigger, when adjusting, it is very inconvenient, time -consuming and labor -intensive, very influence operation efficiency. SUMMARY

[0003] The utility model discloses a kind of high-voltage cable intermediate joint pressure testing devices, the testing device is completely self-designed, structure is very simple, but use effect is very good.

[0004] The specific scheme of the utility model is: a kind of high-voltage cable intermediate joint pressure testing device, with base, the top of the both ends of the base is vertically arranged with end seat plate, the upper surface of base is located in the middle and is provided with two vertically arranged middle seat plates, end seat plate and middle seat plate are arranged parallel to each other and coaxially arranged through holes are formed in the same, there is a space between the two middle seat plates, seat pier for resting intermediate joint is further provided between the two middle seat plates;Two front and rear guide light poles are provided between the two end seat plates, a left pull plate is commonly worn on the left side of the two guide light poles, a right pull plate is commonly worn on the right side of the two guide light poles, cable hole is formed in the left pull plate and the right pull plate, the cable hole is coaxially arranged with the through hole, cable fixing clamp is arranged on the left and right sides of each cable hole;Four sets of pull plate oil cylinders are further arranged between the two middle seat plates, the four sets of pull plate oil cylinders are arranged at the four corner positions of middle seat plate, wherein the telescopic rods of the two sets of pull plate oil cylinders located at one diagonal line are arranged towards left and the front ends of the telescopic rods are connected with the left pull plate, the telescopic rods of the two sets of pull plate oil cylinders located at another diagonal line are arranged towards right and the front ends of the telescopic rods are connected with the right pull plate.

[0005] Further, the guide light pole in the utility model passes through two end seat plates and two middle seat plates simultaneously, and the end seat plate and the middle seat plate are both rectangular metal plates.

[0006] Further, the left pull plate and the right pull plate are both in sliding connection with the guide light rod, and the connection portions of the left pull plate and the right pull plate and the guide light rod are in contact connection through a sliding ring.

[0007] Further, the cable fixing clamp is composed of an upper clamp block and a lower clamp block, the lower clamp block is fixed with the side wall of the corresponding left pull plate or right pull plate, the upper clamp block is detachable, and the upper clamp block and the lower clamp block are locked through locking bolts.

[0008] Further, the upper surface of the seat pier is provided with a left-right through circular arc groove, and a wear-resistant and anti-skid rubber layer is arranged on the groove surface of the circular arc groove.

[0009] Further, the four sets of pull plate oil cylinders are horizontally arranged, and the front end of the telescopic rod of the pull plate oil cylinder is fixedly connected with the corresponding left pull plate or right pull plate.

[0010] The utility model discloses a kind of butt joint pressure resistance test tools for high-voltage cable intermediate joint, and the whole equipment structure is simple, easy to operate, saves time and labor for the butt joint operation of intermediate joint and cable, convenient and fast, can also realize automatic operation, with good practical use and popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the front direction structure schematic diagram of the utility model;

[0012] Fig. 2 It is the top direction structure schematic diagram of the utility model;

[0013] Fig. 3 It is the connection structure schematic diagram of left pull plate and pull plate oil cylinder in the utility model;

[0014] Fig. 4 It is the butt joint operation state schematic diagram of the utility model in intermediate joint.

[0015] In the drawing: 1-end seat plate, 2-cable fixing clamp, 3-left pull plate, 4-guide light rod, 5-base, 6-intermediate seat plate, 7-seat pier, 8-pull plate oil cylinder, 9-right pull plate, 10-circular arc groove, 11-wear-resistant and anti-skid rubber layer, 12-upper clamp block, 13-locking bolt, 14-lower clamp block, 15-high-voltage cable, 16-intermediate joint. DETAILED DESCRIPTION

[0016] The technical scheme of the utility model will be described clearly and completely in combination with the drawings of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model. In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, which is only for the convenience of describing the utility model or simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed or operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0017] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, it can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0018] Referring to Figs. 1-3 The utility model discloses a high -tension cable intermediate joint pressure -proof testing arrangement has base 5, the top of both ends of base is arranged with end seat plate 1 vertically, the upper surface of base is located in the middle and is provided with two vertical intermediate seat plates 6, and the end seat plate and the intermediate seat plate are arranged in parallel and are provided with the through hole arranged coaxially on it, and the two intermediate seat plates are spaced apart, and the two intermediate seat plate is also provided with the seat pier 7 for the intermediate joint of depositing; two end seat plates are provided with two front and rear guide light poles 4, and the left side of two guide light poles is provided with a left pull plate 3, and the right side of two guide light poles is provided with a right pull plate 9, and the left pull plate and the right pull plate are provided with cable holes, and the cable hole is arranged coaxially with the through hole, and the left and right sides of each cable hole are provided with cable fixing clamp 2; two intermediate seat plates are also provided with four sets of pull plate oil cylinders 8, and four sets of pull plate oil cylinders are arranged at the four corner positions of the intermediate seat plate, wherein the telescopic rod of two sets of pull plate oil cylinders at one diagonal line is provided to the left and the front end is connected with the left pull plate, and the telescopic rod of two sets of pull plate oil cylinders at the other diagonal line is provided to the right and the front end is connected with the right pull plate.

[0019] Further, the guide light rod in the embodiment passes through two end seat plates and two middle seat plates, and the end seat plates and the middle seat plates are rectangular metal plates. Further, the left pull plate and the right pull plate are both in sliding connection with the guide light rod, and the connection portions of the left pull plate and the right pull plate with the guide light rod are in contact connection through sliding rings. Further, the cable fixing clamp is composed of an upper clamp block 12 and a lower clamp block 14, the lower clamp block is fixed with the side wall of the corresponding left pull plate or right pull plate, the upper clamp block is detachable, and the upper clamp block and the lower clamp block are locked through a locking bolt 13. Further, the seat pier is provided with a left-right through circular arc groove 10 on the upper surface, and a wear-resistant and anti-skid rubber layer 11 is arranged on the groove surface of the circular arc groove. Further, the four sets of pull plate oil cylinders are horizontally arranged, and the front end of the telescopic rod of the pull plate oil cylinder is fixedly connected with the corresponding left pull plate or right pull plate.

[0020] The utility model discloses in actual use, it is such operation specifically:

[0021] Two high-voltage cables are respectively arranged in the cable holes on the left pull plate and the right pull plate from two directions, and after being inserted in the appropriate positions, the cable fixing clamps on the two sides are locked, then the middle joint is placed on the seat pier, and then the pull plate oil cylinders are started simultaneously, the left pull plate and the right pull plate simultaneously pull the high-voltage cable to the middle joint, the metal conductor part in the cable is inserted into the middle joint from the two sides to be connected, after being connected, the stability is kept, and high-voltage electricity is input into the cable to carry out breakdown test, and the pressure resistance of the workpiece is judged by observing the middle joint during the test and after the test.

[0022] During operation, the pull plate oil cylinders arranged reversely on the two sides simultaneously pull the high-voltage cables on the two sides to the middle, which replaces manual joint operation, is time-saving and labor-saving, and is convenient, fast, stable and reliable.

[0023] The utility model discloses a kind of completely self-designed tools for the butt joint pressure resistance test of high-voltage cable middle joint, and the whole equipment structure design is simple, easy to operate, saves time and labor for the butt joint operation of middle joint and cable, convenient and fast, can also realize automatic operation, with good practical use and popularization value.

Claims

1. A high voltage cable joint pressure test device having a base, characterised in that: The base has end plates vertically arranged at its top ends, and two intermediate plates vertically arranged in the middle of its top surface. The end plates and intermediate plates are parallel to each other and each has a coaxially arranged through hole. A gap is left between the two intermediate plates, and a support block for placing the intermediate joint is provided between them. Two guide rods are arranged between the two end plates, one in front and one behind. A left pull plate passes through the left side of both guide rods, and a right pull plate passes through the right side of both guide rods. Cable holes are provided on both the left and right pull plates. The cable holes are arranged coaxially with the through holes. Cable fixing clips are provided on both the left and right sides of each cable hole. Four sets of pull plate cylinders are also installed between the two intermediate seat plates. The four sets of pull plate cylinders are arranged at the four corners of the intermediate seat plates. The extension rods of the two sets of pull plate cylinders located on one diagonal are set to the left and their front ends are connected to the left pull plate. The extension rods of the two sets of pull plate cylinders located on the other diagonal are set to the right and their front ends are connected to the right pull plate.

2. The high-voltage cable joint pressure test device according to claim 1, characterized in that: The guide light rod passes through two end plates and two intermediate plates, both of which are rectangular metal plates.

3. The high voltage cable joint pressure test device of claim 1, wherein: Both the left and right pull plates are slidably connected to the guide light rod, and the connection between the left and right pull plates and the guide light rod is made by a slip ring.

4. The high-voltage cable joint pressure test device according to claim 1, characterized in that: The cable clamp consists of a separate upper clamping block and a lower clamping block. The lower clamping block is fixed to the side wall of the corresponding left or right pull plate, while the upper clamping block is detachable. The upper and lower clamping blocks are locked together by locking bolts.

5. The high voltage cable joint pressure test device of claim 1, wherein: The pier has a horizontally extending arc groove on its top, and a wear-resistant and non-slip rubber layer is laid on the surface of the arc groove.

6. The high voltage cable joint pressure test device of claim 1, wherein: All four sets of pull plate cylinders are arranged horizontally, and the front end of the telescopic rod of the pull plate cylinder is fixedly connected to the corresponding left or right pull plate.

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