CN217717981U - Vacuum interrupter withstand voltage test frock - Google Patents
Vacuum interrupter withstand voltage test frock Download PDFInfo
- Publication number
- CN217717981U CN217717981U CN202221261920.5U CN202221261920U CN217717981U CN 217717981 U CN217717981 U CN 217717981U CN 202221261920 U CN202221261920 U CN 202221261920U CN 217717981 U CN217717981 U CN 217717981U
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- China
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- moving contact
- vacuum interrupter
- pull head
- shaped support
- fork
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Abstract
The utility model relates to a vacuum interrupter withstand voltage test frock, including vacuum interrupter, the static contact is equipped with to vacuum interrupter bottom, and the static contact bottom is equipped with the connecting axle that stretches out downwards, and the moving contact is equipped with to vacuum interrupter's upper end, and the moving contact upper end is equipped with the sliding shaft, sliding shaft and vacuum interrupter roof sliding connection, and vacuum interrupter's top is equipped with the thread bush, and the outside threaded connection of thread bush has the adjusting collar, and the middle part of adjusting collar top cap is equipped with the through-hole, and through-hole department is equipped with a pull head, the pull head with the moving contact top is connected, and the pull head outer wall is equipped with operating device, and operating device includes the Y-shaped support, and two yokes of Y-shaped support are connected through the round pin hub rotation with the outer wall of pull head, are equipped with the cam board on the yoke, thereby the cam board contacts with the roof of adjusting collar, thereby the operation Y-shaped support drives the cam board rotation and realizes driving moving contact and static contact separation, the utility model discloses simplify the experiment, reduced the test cost.
Description
Technical Field
The utility model relates to a vacuum interrupter withstand voltage test technical field specifically is a vacuum interrupter withstand voltage test frock.
Background
At present, vacuum circuit breakers used in power systems at home and abroad are various in equipment, vacuum arc-extinguishing chambers are widely used, a mode of assembling poles and then performing a power frequency voltage-withstand test is adopted for the voltage-withstand test of the vacuum arc-extinguishing chambers, namely, a timely and effective test method for the arc-extinguishing chambers is omitted, and the assembled poles are scrapped if the power frequency voltage-withstand test is unqualified, so that loss is caused.
Disclosure of Invention
The utility model discloses a main objective is in order to solve current vacuum interrupter and carry out utmost point post assembly after just can do the withstand voltage test frequently, causes the problem of loss, provides a vacuum interrupter withstand voltage test frock, realizes testing vacuum interrupter alone, reduction test cost.
The utility model has the following concrete scheme: a static contact is mounted at the bottom of the vacuum arc extinguish chamber, a connecting shaft extending downwards is arranged at the bottom end of the static contact, a moving contact is mounted at the upper end of the vacuum arc extinguish chamber, a sliding shaft is arranged at the upper end of the moving contact and is slidably connected with a top plate of the vacuum arc extinguish chamber, a threaded sleeve is arranged at the top end of the vacuum arc extinguish chamber, an adjusting sleeve is in threaded connection with the outer portion of the threaded sleeve, a through hole is formed in the middle of a top cover of the adjusting sleeve, a pull head is mounted at the through hole and is connected with the top end of the moving contact, an operating mechanism is mounted on the outer wall of the pull head and comprises a forked support, two fork arms of the forked support are rotatably connected with the outer wall of the pull head through a pin shaft, a cam plate is arranged on each fork arm and is in contact with the top plate of the adjusting sleeve, and the forked support is operated to drive the cam plate to rotate so as to drive the moving contact to be separated from the static contact.
The pull head middle part is equipped with the step hole, is equipped with countersunk head bolt in the step hole, and countersunk head bolt the inner is connected with the moving contact.
Be equipped with the wiring hole on the Y-shaped support, the wiring hole is used for connecting the high-voltage cable.
The utility model discloses a theory of operation as follows: before the test, the fork-shaped support is pressed downwards to rotate 90 degrees, so that the movable contact and the fixed contact are separated to be in a brake-off state, then the vacuum arc-extinguishing chamber in the brake-off state is placed on a ground insulation workbench, the power frequency voltage-withstand voltage booster is connected to a wiring hole of the vacuum arc-extinguishing chamber from the output end of the power frequency voltage-withstand voltage booster, after the wiring is checked to be correct, personnel withdraw and close a test field, an operator operates the test console to electrify the test console to boost the power frequency voltage-withstand voltage booster to perform a power frequency voltage-withstand test, and after the test is finished, the equipment voltage-reduction outage personnel enter the field to perform the test and finish the ending work.
Compared with the prior art, the utility model has the following advantages: the power frequency withstand voltage test is carried out on the vacuum arc extinguish chamber independently, the pole is not required to be assembled and then tested, the test cost is reduced, and the test efficiency is improved.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a schematic diagram of the closing state of the present invention;
fig. 3 is a schematic view of the opening state of the present invention;
fig. 4 is a schematic diagram of the test state of the present invention;
in the figure: the device comprises a vacuum arc extinguish chamber 1, a thread bushing 2, an adjusting bushing 3, a fork-shaped support 4, a countersunk bolt 5, a pull head 6, a fixed contact 7, a movable contact 8, a sliding shaft 9, a connecting shaft 10, a wiring hole 11, a cam plate 12, an insulating butt-joint workbench 13 and a power frequency withstand voltage tester 14.
Detailed Description
Referring to fig. 1-4, the pressure test tool for the vacuum arc extinguish chamber in the embodiment includes a vacuum arc extinguish chamber 1, a fixed contact 7 is installed at the bottom of the vacuum arc extinguish chamber 1, a connecting shaft 10 extending downward is installed at the bottom end of the fixed contact 7, a moving contact 8 is installed at the upper end of the vacuum arc extinguish chamber 1, a sliding shaft 9 is installed at the upper end of the moving contact 8, the sliding shaft 9 is slidably connected with a top plate of the vacuum arc extinguish chamber 1, a threaded sleeve 2 is installed at the top end of the vacuum arc extinguish chamber 1, an adjusting sleeve 3 is connected to the outer portion of the threaded sleeve 2 in a threaded manner, a through hole is formed in the middle of a top cover of the adjusting sleeve 3, a pull head 6 is installed at the through hole, the pull head 6 is connected with the top end of the moving contact 8, an operating mechanism is installed on the outer wall of the pull head 6, the operating mechanism includes a fork-shaped support 4, two fork arms of the fork-shaped support 4 are rotatably connected with the outer wall of the pull head 6 through a pin shaft, a cam plate 12 is arranged on the fork arm, the cam plate 12 is in contact with the top plate of the adjusting sleeve 3, and the fork-shaped support 4 is operated to rotate 90 degrees so as to drive the fixed contact, and thus the moving contact can drive the moving contact 7 to separate the moving contact 8 from the moving contact 7.
In the embodiment, a step hole is formed in the middle of the pull head 6, a countersunk head bolt 5 is arranged in the step hole, and the inner end of the countersunk head bolt 5 is connected with the moving contact 8.
In this embodiment, the fork-shaped bracket 4 is provided with a wiring hole 11, and the wiring hole 11 is used for connecting a high-voltage cable.
During testing, the vacuum arc-extinguishing chamber 1 in a brake-separating state is placed on the ground insulation workbench 13, and an outlet wire of the power frequency withstand voltage testing machine 14 is connected with the wiring hole 11.
Claims (3)
1. The utility model provides a vacuum interrupter withstand voltage test frock, includes vacuum interrupter, characterized by: the bottom of the vacuum arc extinguish chamber is provided with a static contact, the bottom end of the static contact is provided with a connecting shaft extending downwards, the upper end of the vacuum arc extinguish chamber is provided with a moving contact, the upper end of the moving contact is provided with a sliding shaft, the sliding shaft is in sliding connection with a top plate of the vacuum arc extinguish chamber, the top end of the vacuum arc extinguish chamber is provided with a threaded sleeve, the outer portion of the threaded sleeve is in threaded connection with an adjusting sleeve, the middle of a top cover of the adjusting sleeve is provided with a through hole, a pull head is arranged in the through hole and connected with the top end of the moving contact, the outer wall of the pull head is provided with an operating mechanism, the operating mechanism comprises a fork-shaped support, two fork arms of the fork-shaped support are in rotating connection with the outer wall of the pull head through a pin shaft, a cam plate is arranged on each fork arm and contacts with the top plate of the adjusting sleeve, and the fork-shaped support is operated to drive the cam plate to rotate so that the moving contact with the static contact is driven.
2. The vacuum arc-extinguishing chamber pressure-resistant test tool according to claim 1, characterized in that: the middle part of the pull head is provided with a step hole, a countersunk head bolt is arranged in the step hole, and the inner end of the countersunk head bolt is connected with the moving contact.
3. The vacuum arc extinguish chamber pressure test tool according to claim 1, which is characterized in that: and the fork-shaped support is provided with a wiring hole, and the wiring hole is used for connecting a high-voltage cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221261920.5U CN217717981U (en) | 2022-05-25 | 2022-05-25 | Vacuum interrupter withstand voltage test frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221261920.5U CN217717981U (en) | 2022-05-25 | 2022-05-25 | Vacuum interrupter withstand voltage test frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217717981U true CN217717981U (en) | 2022-11-01 |
Family
ID=83797426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221261920.5U Active CN217717981U (en) | 2022-05-25 | 2022-05-25 | Vacuum interrupter withstand voltage test frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217717981U (en) |
-
2022
- 2022-05-25 CN CN202221261920.5U patent/CN217717981U/en active Active
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