CN201322786Y - Overrun measuring tool for circuit breaker contacts - Google Patents
Overrun measuring tool for circuit breaker contacts Download PDFInfo
- Publication number
- CN201322786Y CN201322786Y CNU2008201444809U CN200820144480U CN201322786Y CN 201322786 Y CN201322786 Y CN 201322786Y CN U2008201444809 U CNU2008201444809 U CN U2008201444809U CN 200820144480 U CN200820144480 U CN 200820144480U CN 201322786 Y CN201322786 Y CN 201322786Y
- Authority
- CN
- China
- Prior art keywords
- contact
- overrun
- circuit breaker
- measuring tool
- breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model relates to an overrun measuring tool for circuit breaker contacts. The overrun measuring tool is characterized in that the tool has a staged rectangular plate with the thickness of 1-3 mm and unequal widths of the left side and the right side in the length direction, wherein the width of one side of the left side and the right side of the staged rectangular plate is the maximum distance between a moving contact and a contact bracket in case of the switching-on of a circuit breaker, and the distance of the other side is the minimum distance between the moving contact and the contact bracket in case of the switching-off of the circuit breaker. By utilizing the staged rectangular plate with unequal widths of the left side and the right side, the overrun of main contacts and sparking contacts of the circuit breaker can be measured by the unequal widths of the left side and the right side of the plate respectively, and the measurement results are the same as the results measured by the original measurement method. Moreover, the overrun measuring tool can save working hours by 80%, thereby remarkably improving the work efficiency.
Description
Technical field
The utility model belongs to a kind of testing tool of isolating switch, particularly relates to a kind of TM30-1250 of being used for and with the breaker contact overtravel measuring tool of upper shell isolating switch product.
Background technology
At present mostly be original dismounting static contact mensuration greatly, and generally need detect with measurement instruments such as slide calliper rule for TM30-1250 and with the means of the detection contact excess of stroke used in the upper shell isolating switch product.This method can also be suitable for single structure of contact terminal isolating switch, but for TM30-1250 and just very inconvenient with the multiple contact isolating switch of upper shell, this is because many its contact over travel of group structure of contact terminal isolating switch need to measure one by one usually.
Summary of the invention
The utility model provides a kind of breaker contact overtravel measuring tool for solving the technical matters that exists in the known technology.
The utility model for the technical scheme that solves the technical matters that exists in the known technology and take is: it has a thickness is the 1-3 millimeter stepped rectangular plates that do not wait of the width of the left and right sides in the longitudinal direction, maximum spacing when the width of the side in the described stepped rectangular plates left and right sides is breaker closing between moving contact and contact supporting, the minimum spacing the when width of opposite side is breaker open operation between moving contact and contact supporting.
The utility model can also adopt following technical scheme:
On described stepped rectangular plates, be fixed with the hand of being convenient to get with hand-held of holding.
Advantage and the good effect that the utlity model has are: because the stepped rectangular plates that has adopted the width of a left and right sides not wait, both can utilize the width that does not wait about this plate respectively each master of isolating switch, the arcing contact excess of stroke to be measured, measurement result is equal to the effect that records by the original measurement method.And can save for 80% man-hour, improved work efficiency greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the utility model is applied to each synoptic diagram main, the arcing contact excess of stroke of measuring contacts isolating switch.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
As shown in Figure 1, the tool palette 8 of the detection breaker contact overtravel that thickness is 2 millimeters, the upper part of plate 8 are the trapezoidal hands of holding, and the lower part of plate 8 is with trapezoidal what hold that palmistry is connected is that one one end width is H1, and other end width is the stepped rectangular plates of H2.Distance between moving contact and contact supporting during the corresponding breaker open operation of H1 wherein, distance between moving contact and contact supporting during the corresponding breaker closing of H2.
As shown in Figure 2, on the moving contact of breaker and mounting system thereof formed by support liner plate 1, coupling shaft 2, contact supporting 3, arcing contact 4, main contact 5, main contact spring 6 and arcing contact spring 7 etc., that tool palette 8 can insert when measuring is main, arcing contact 5,4 above and contact supporting 3 support and carry out contact over travel between the plane of main, arcing contact spring 6,7 and measure.
Claims (2)
1. breaker contact overtravel measuring tool, it is characterized in that: it has a thickness is the 1-3 millimeter stepped rectangular plates that do not wait of the width of the left and right sides in the longitudinal direction, maximum spacing when the width of the side in the described stepped rectangular plates left and right sides is breaker closing between moving contact and contact supporting, the minimum spacing the when width of opposite side is breaker open operation between moving contact and contact supporting.
2. breaker contact overtravel measuring tool according to claim 1 is characterized in that: be fixed with the hand of being convenient to get with hand-held of holding on described stepped rectangular plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201444809U CN201322786Y (en) | 2008-12-16 | 2008-12-16 | Overrun measuring tool for circuit breaker contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201444809U CN201322786Y (en) | 2008-12-16 | 2008-12-16 | Overrun measuring tool for circuit breaker contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322786Y true CN201322786Y (en) | 2009-10-07 |
Family
ID=41160165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201444809U Expired - Fee Related CN201322786Y (en) | 2008-12-16 | 2008-12-16 | Overrun measuring tool for circuit breaker contacts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322786Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538221A (en) * | 2014-11-17 | 2015-04-22 | 浙江天正电气股份有限公司 | Circuit breaker arc-control device and circuit breaker therewith |
-
2008
- 2008-12-16 CN CNU2008201444809U patent/CN201322786Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538221A (en) * | 2014-11-17 | 2015-04-22 | 浙江天正电气股份有限公司 | Circuit breaker arc-control device and circuit breaker therewith |
| CN104538221B (en) * | 2014-11-17 | 2017-07-07 | 浙江天正电气股份有限公司 | Arc Distinguishing Device for Circuit Breakers and it is provided with the breaker of the Arc Distinguishing Device for Circuit Breakers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20100118 |