CN215813293U

CN215813293U - A connect holder for partial discharge test

Info

Publication number: CN215813293U
Application number: CN202120820298.6U
Authority: CN
Inventors: 赵远; 张二龙; 田龙刚; 周梓菲; 韩俊豪
Original assignee: Datang Boiler Pressure Vessel Examination Center Co Ltd; East China Electric Power Test Institute of China Datang Corp Science and Technology Research Institute Co Ltd
Current assignee: Datang Boiler Pressure Vessel Examination Center Co Ltd; East China Electric Power Test Institute of China Datang Corp Science and Technology Research Institute Co Ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2022-02-11
Anticipated expiration: 2031-04-19

Abstract

The utility model provides a connector holder for a partial discharge experiment, which comprises a clamping ring, wherein a plurality of contacts are uniformly arranged on the clamping ring along the circumferential direction, the contacts are arranged along the radial direction of the clamping ring, the connectors can be placed in the clamping ring, and the contacts can synchronously move along the radial direction. The joint clamp for the partial discharge experiment provided by the utility model has the advantages that: the radial movement clamping fixed joint through the contact can adapt to joints of different specifications, a nut of the voltage transformer does not need to be disassembled during installation, use is convenient, point discharge and partial discharge are not easy to generate, and the influence on an experimental result is small.

Description

A connect holder for partial discharge test

Technical Field

The utility model relates to the technical field of partial discharge tests, in particular to a connector holder for a partial discharge test.

Background

When a partial discharge test is performed on the voltage transformer, a test clamp or an insertion sheet is required to clamp and fix a side connector of the voltage transformer, the test clamp is generally designed to be of a sawtooth structure in order to increase friction force, and point discharge is easy to generate; the insert is generally manufactured by a stamping process, so that fine burrs which are difficult to observe exist on the edge of the insert, partial discharge is easy to generate, and the problems can influence the result of a partial discharge experiment. There are clamps that change to use among the prior art, can with the fine cooperation of voltage transformer's joint in order to fix, but these clamps can only be suitable for the joint of specific dimensions specification, need unscrew voltage transformer's a contact nut moreover when the installation, the condition such as nut not screwed up or damaged probably appears.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamp holder suitable for joints with different specifications.

The utility model solves the technical problems through the following technical scheme: the utility model provides a joint holder for partial discharge experiment, includes the grip ring, the grip ring evenly is provided with a plurality of contacts along circumference, the radial setting of contact edge grip ring, the joint can be placed in the grip ring, the contact can be in step along radial motion.

The utility model clamps the fixed joint through the radial movement of the contact, can adapt to joints with different specifications, does not need to disassemble a primary nut of the voltage transformer during installation, is convenient to use, is not easy to generate point discharge and partial discharge phenomena, and has small influence on experimental results.

Preferably, the clamping ring comprises a circular base, a plurality of fixed blocks are arranged on the surface of the base along the circumferential direction, and a radial channel for limiting the movement path of the contact is clamped between the adjacent fixed blocks.

Preferably, the clamping ring further comprises an annular linkage plate, the fixed block is located between the linkage plate and the base, and the linkage plate can rotate to drive the contact to stretch and retract along the radial direction.

Preferably, a linkage rod is arranged on the contact, a plurality of spiral guide rails are arranged on the linkage plate along the circumferential direction, the linkage rod is limited in the guide rails, and the path of the guide rails is gradually close to the inner side of the annular area of the linkage plate from the outer edge of the linkage plate.

Preferably, a driving button is arranged on one surface of the linkage plate, which faces away from the base.

Preferably, the driving button is provided with a screw hole penetrating through the linkage plate, and a limit bolt is screwed in the screw hole.

Preferably, the end part of the linkage rod is provided with a limiting cap, and the linkage plate is limited between the fixed block and the limiting cap.

Preferably, the corners of the surface of the fixed block are rounded.

Preferably, at least one end of the contact, which is in contact with the connector, is provided with an arc top.

Preferably, the clamping ring is uniformly provided with 6 contacts along the circumferential direction.

The joint clamp for the partial discharge experiment provided by the utility model has the advantages that: the radial movement clamping fixed joint through the contact can adapt to joints of different specifications, a nut of the voltage transformer does not need to be disassembled during installation, use is convenient, point discharge and partial discharge are not easy to generate, and the influence on an experimental result is small. The synchronous movement of the contact is realized through the cooperation of the linkage rod and the track, the control is convenient, the movement track of the contact is limited through the fixing block, the linkage plate on the upper layer is supported, the end parts of all the parts are in arc transition, and the point discharge is prevented.

Drawings

Fig. 1 is a schematic diagram of a joint holder for partial discharge experiments provided by an embodiment of the present invention;

fig. 2 is a schematic view of a base of a connector holder for partial discharge experiments according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a linkage plate of a joint clamper for partial discharge experiment according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a contact of a connector holder for partial discharge experiments according to an embodiment of the present invention;

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below in detail and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the present embodiment provides a connector holder for a partial discharge test, which includes a clamping ring 1, where the clamping ring 1 is uniformly provided with a plurality of contacts 2 along a circumferential direction, the contacts 2 are arranged along a radial direction of the clamping ring 1, a connector 3 can be placed in the clamping ring 1, and the plurality of contacts 2 can move along the radial direction synchronously, so that the plurality of contacts 2 push against the connector 3, thereby clamping and fixing the connector 3.

Radial motion centre gripping fixed joint 3 that this embodiment passes through contact 2 can adapt to the joint of different specifications, need not dismantle voltage transformer's nut moreover during the installation, and convenient to use is difficult to produce point discharge and partial discharge phenomenon, and is less to the influence of experimental result.

With reference to fig. 1, 2 and 3, the clamping ring 1 includes a base 4 in a circular ring shape, a plurality of fixing blocks 41 are circumferentially disposed on a surface of the base 4, a radial channel for limiting a movement path of the contact 2 is clamped between adjacent fixing blocks 41, and the contact 2 slides and extends along the radial channel to fix the connector 3. The clamping ring 1 further comprises an annular linkage plate 5, the fixed block 41 is located between the linkage plate 5 and the base 4, and the linkage plate 5 can rotate to drive the contact to stretch and retract along the radial direction.

With reference to fig. 3 and 4, a linkage rod 21 is arranged on the contact 2, a plurality of spiral guide rails 51 are arranged on the linkage plate 5 along the circumferential direction, the linkage rod 21 is limited in the guide rails 51, the path of the guide rails 51 is gradually close to the inner side of the annular area of the linkage plate 5 from the outer edge of the linkage plate 5, and when the contact is used, the linkage rods 21 are respectively limited in the guide rails 51, so that the linkage rod 21 can change the fixed position in the guide rails 51 by rotating the linkage plate 5, the contact 2 can move in a radial telescopic manner relative to the linkage plate 5, and the synchronous telescopic movement of the plurality of contacts 2 can be ensured, and the use is convenient.

The end part of the linkage rod 21 is also provided with a limiting cap 22, the linkage plate 5 is limited between the fixing hole 41 and the limiting cap 22 after being matched with the linkage rod 21, the linkage rod 21 can be detachably connected with the contact 2, and the linkage rod 21 is installed after the contact 2 is connected with the clamping ring 1.

Referring to fig. 3, a driving knob 52 is disposed on a surface of the linkage plate 5 facing away from the base 4, and the linkage plate 5 is rotated by manually controlling the driving knob 52 or connecting the driving knob 52 by using other devices, so as to control the extension length of the contact 2 and lock the position of the contact 2 by fixing the position of the driving knob 52.

In a preferred embodiment, the driving knob 52 is provided with a screw hole (not shown) penetrating through the linkage plate 5, the screw hole is provided with an internal thread, a limiting screw (not shown) is screwed in the screw hole, and the limiting screw abuts against the fixing block 41 by screwing a limiting bolt, so that the linkage plate 5 can be fixed and prevented from rotating, and the state of the linkage plate 5 can be conveniently controlled.

In order to avoid the point discharge field, in this embodiment, the corners of the surface of the fixing block 41 are all set to be rounded, and at least one surface of the contact 2 contacting with the connector 3 is set to be an arc top, and preferably, both ends of the contact are set to be arc tops. The contacts 3 are generally hexagonal in configuration, so that 6 contacts 2 are provided, each side of the contacts 3 being pressed against a respective one, and the same applies to circular contacts.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A connect holder for partial discharge experiment which characterized in that: including the grip ring, the grip ring evenly is provided with a plurality of contacts along circumference, the contact sets up along the radial of grip ring, and the joint can be placed in the grip ring, the contact can be along radial motion in step.

2. The joint holder for partial discharge experiments according to claim 1, wherein: the clamping ring comprises a base in a ring shape, a plurality of fixed blocks are arranged on the surface of the base along the circumferential direction, and radial channels for limiting the motion path of the contact are clamped between the adjacent fixed blocks.

3. A connector holder for partial discharge testing according to claim 2, wherein: the clamping ring further comprises an annular linkage plate, the fixing block is located between the linkage plate and the base, and the linkage plate can rotate to drive the contact to stretch and retract along the radial direction.

4. A connector holder for partial discharge testing according to claim 3, wherein: the linkage device is characterized in that a linkage rod is arranged on the contact, a plurality of spiral guide rails are arranged on the linkage plate along the circumferential direction, the linkage rod is limited in the guide rails, and the path of the guide rails is gradually close to the inner side of the annular area of the linkage plate from the outer edge of the linkage plate.

5. The joint holder for partial discharge experiments according to claim 4, wherein: and a driving knob is arranged on one side of the linkage plate, which faces away from the base.

6. The joint holder for partial discharge experiments according to claim 5, wherein: the driving button is provided with a screw hole penetrating through the linkage plate, and a limiting bolt is screwed in the screw hole.

7. The joint holder for partial discharge experiments according to claim 4, wherein: the end part of the linkage rod is provided with a limiting cap, and the linkage plate is limited between the fixed block and the limiting cap.

8. The connector holder for partial discharge experiments according to claim 2, characterized in that: and corners of the surface of the fixed block are all set to be round corners.

9. A connector holder for partial discharge testing according to claim 1, wherein: and at least one end of the contact, which is in contact with the connector, is arranged to be an arc top.

10. The joint holder for partial discharge experiments according to claim 1, wherein: the clamping ring is evenly provided with 6 contacts along the circumference.