CN207637702U - A kind of breaker over-travel spring adjustment mechanism - Google Patents
A kind of breaker over-travel spring adjustment mechanism Download PDFInfo
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- CN207637702U CN207637702U CN201721607119.0U CN201721607119U CN207637702U CN 207637702 U CN207637702 U CN 207637702U CN 201721607119 U CN201721607119 U CN 201721607119U CN 207637702 U CN207637702 U CN 207637702U
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- excess
- stroke
- spring
- stroke spring
- spring adjustment
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Abstract
The utility model discloses a kind of breaker over-travel spring adjustment mechanisms, are set between the upper insulator (2) and lower insulator (12) of breaker, further include excess of stroke spring adjustment mechanism；The excess of stroke spring adjustment mechanism is installed in the inner cavity of lower insulator (12), including six roots of sensation excess of stroke spring (4), spacer sleeve (6) and excess of stroke spring adjustment seat (8)；Spacer sleeve (6) is installed on return spring holder (5) lower end, and excess of stroke spring adjustment seat (8) is installed on spacer sleeve (6)；Excess of stroke spring (4) is assemblied in six circumferentially uniformly distributed chambers of excess of stroke spring adjustment seat (8), and the adjusting bolt (9) for adjusting excess of stroke spring (4) decrement is equipped between excess of stroke spring (4) and excess of stroke spring adjustment seat (8)；Excess of stroke spring adjustment seat (8) lower end connection insulation push rod (11).Applied to breaker, excess of stroke amount of spring compression can be adjusted flexibly according to breaker trip curve, so as to adjust contact precompression, ensure the larger precompression of contact, while reducing the contact bounce time, promote breaker overall performance.
Description
Technical field
The utility model is related to mechanotronics field more particularly to a kind of breaker over-travel spring adjustment mechanisms.
Background technology
Electric locomotive or motor-car are fitted with vacuum circuit breaker, and vacuum circuit breaker, which is realized to be closed by electropneumatic, cut-offs work(
Can, when breaker is closed to electricity, Electronic control compressed air valve is opened, and cylinder piston is pushed up by air force,
And then insulation push rod is pushed to move upwards, while the resetting spring being mounted between push rod and vacuum packet is compressed, until sound is touched
Head is closed, and excess of stroke spring starts to compress at this time, contact pressure enhancing, up to piston motion to limit point, breaker unitary closed
It completes；When vacuum circuit breaker needs to disconnect, power-off late gate is opened, cylinder pressure release, and resetting spring and excess of stroke spring restore, according to
Insulation push rod and piston reverses direction movement are pushed by elastic potential energy, until piston contact cylinder bottom, at this time dynamic/static contact disconnection, break
Road device, which disconnects, to be completed.Excess of stroke amount of spring compression determines that main contact is closed the precompression of moment, and precompression is too small, then main contact closes
It is long to close bounce time, is easy to cause arcing scaling loss or even adhesion；Precompression is excessive, and excess of stroke spring flexible is lacked when contact closure
It presses, piston rebound is easy to cause after rigid collision.
Invention content
The purpose of this utility model is to provide a kind of breaker over-travel spring adjustment mechanism, is applied to breaker, Ke Yigen
Excess of stroke amount of spring compression is adjusted flexibly according to breaker trip curve, so as to adjust contact precompression, ensures the larger precompression of contact,
Reduce the contact bounce time simultaneously, promotes breaker overall performance.
The purpose of this utility model is achieved through the following technical solutions：
A kind of breaker over-travel spring adjustment mechanism is set between the upper insulator 2 and lower insulator 12 of breaker, including：
Vacuum tube 1, resetting spring 3, return spring holder 5, spacer sleeve 6, the vacuum tube 1 are cast in inside insulator 2, reset bullet
Spring abutment 5 is installed on 2 lower section of insulator and is linked and packed by resetting spring 3 and vacuum tube 1；Further include that excess of stroke spring adjusts machine
Structure；
The excess of stroke spring adjustment mechanism is installed in the inner cavity of lower insulator 12, including six roots of sensation excess of stroke spring 4, interval
Set 6 and excess of stroke spring adjustment seat 8；Spacer sleeve 6 is installed on 5 lower end of return spring holder, and excess of stroke spring adjustment seat 8 is installed on spacer sleeve
On 6；Excess of stroke spring 4 is assemblied in six circumferentially uniformly distributed chambers of excess of stroke spring adjustment seat 8, and excess of stroke spring 4 and excess of stroke bullet
The adjusting bolt 9 for adjusting 4 decrement of excess of stroke spring is equipped between spring adjustment seat 8；
8 lower end of the excess of stroke spring adjustment seat connection insulation push rod 11.
9 front end of adjusting bolt is equipped with support steel disc 10.
The excess of stroke spring adjustment seat 8 is installed on by dormant bolt 7 on spacer sleeve 6.
A kind of breaker, including above-mentioned breaker over-travel spring adjustment mechanism.
A kind of open circuit that the utility model embodiment provides it can be seen from above-mentioned technical solution provided by the utility model
Device excess of stroke spring adjustment mechanism is applied to breaker, excess of stroke amount of spring compression can be adjusted flexibly according to breaker trip curve,
So as to adjust contact precompression, ensure the larger precompression of contact, while reducing the contact bounce time, promotes breaker globality
Energy.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art for, without creative efforts, can also be according to these attached drawings
Obtain other accompanying drawings.
Fig. 1 is the structural schematic diagram for the breaker over-travel spring adjustment mechanism that the utility model embodiment provides；
Fig. 2 is 8 knot of excess of stroke spring adjustment seat for the breaker over-travel spring adjustment mechanism that the utility model embodiment provides
Structure schematic diagram.
Specific implementation mode
With reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, belongs to the scope of protection of the utility model.
The utility model embodiment is described in further detail below in conjunction with attached drawing.
Embodiment one
As shown in Figure 1, a kind of breaker over-travel spring adjustment mechanism, is set to the upper insulator 2 of breaker and lower insulator
Between 12, including：Vacuum tube 1, resetting spring 3, return spring holder 5, spacer sleeve 6, the vacuum tube 1 are cast in insulator 2
Inside, return spring holder 5 are installed on 2 lower section of insulator and are linked and packed by resetting spring 3 and vacuum tube 1；Resetting spring 3 has
The six roots of sensation is uniformly arranged.It further include excess of stroke spring adjustment mechanism in its structure.
The excess of stroke spring adjustment mechanism is installed in the inner cavity of lower insulator 12, including six roots of sensation excess of stroke spring 4, interval
Set 6 and excess of stroke spring adjustment seat 8；Spacer sleeve 6 is installed on 5 lower end of return spring holder, and excess of stroke spring adjustment seat 8 is installed on spacer sleeve
On 6；Specifically, the excess of stroke spring adjustment seat 8 is installed on by dormant bolt 7 on spacer sleeve 6.Excess of stroke spring 4 is assemblied in
In six circumferentially uniformly distributed chambers of excess of stroke spring adjustment seat 8, and it is equipped with and adjusts between excess of stroke spring 4 and excess of stroke spring adjustment seat 8
The adjusting bolt 9 of 4 decrement of excess of stroke spring；Specific 9 front end of adjusting bolt is equipped with support steel disc 10.The excess of stroke
8 lower end of spring adjustment seat connection insulation push rod 11,8 bottom threaded end outstanding of specific excess of stroke spring adjustment seat are pushed away with insulation
Bar 11 is connected through a screw thread.
Can be with the decrement of regulating part excess of stroke spring 4 by part adjusting bolt 9, and then adjusting is applied to part vacuum tube 1 and moves
Precompression on contact, precompression is too small, then main contact closure bounce time is long, is easy to cause arcing scaling loss or even adhesion；In advance
Pressure is excessive, and excess of stroke spring flexible pressure is lacked when contact closure, piston rebound, the utility model are easy to cause after rigid collision
While ensureing larger precompression, the contact bounce time is effectively reduced, breaker is promoted and integrally cut-offs closing performance.
Sleeve mechanism can realize that breaker is cut-off and the interior assembly of the chamber of closure function excess of stroke spring adjustment mechanism 6 is super
Journey spring 4, each 4 bottom of excess of stroke spring, which is equipped with, adjusts steel disc 10 and adjusting bolt 9, and spiral shell is adjusted by tightening or unscrewing
Bolt 9 can adjust 4 decrement of excess of stroke spring, to adjust main circuit breaker contact precompression.Assembling structure simple and compact is easy to real
It is existing.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
Subject to the scope of protection of the claims.
Claims (3)
1. a kind of breaker over-travel spring adjustment mechanism is set between the upper insulator (2) and lower insulator (12) of breaker, packet
It includes：Vacuum tube (1), resetting spring (3), return spring holder (5), spacer sleeve (6), the vacuum tube (1) are cast in insulation
Sub (2) are internal, and return spring holder (5) is installed below insulator (2) and connect dress with vacuum tube (1) by resetting spring (3)
Match；It is characterized in that, further including excess of stroke spring adjustment mechanism；
The excess of stroke spring adjustment mechanism is installed in the inner cavity of lower insulator (12), including six roots of sensation excess of stroke spring (4), interval
Cover (6) and excess of stroke spring adjustment seat (8)；Spacer sleeve (6) is installed on return spring holder (5) lower end, excess of stroke spring adjustment seat (8) peace
Loaded on spacer sleeve (6)；Excess of stroke spring (4) is assemblied in six circumferentially uniformly distributed chambers of excess of stroke spring adjustment seat (8), and super
The adjusting bolt (9) for adjusting excess of stroke spring (4) decrement is equipped between journey spring (4) and excess of stroke spring adjustment seat (8)；
Excess of stroke spring adjustment seat (8) lower end connection insulation push rod (11).
2. breaker over-travel spring adjustment mechanism according to claim 1, which is characterized in that the adjusting bolt (9)
Front end is equipped with support steel disc (10).
3. breaker over-travel spring adjustment mechanism according to claim 1 or 2, which is characterized in that the excess of stroke spring
Adjustment seat (8) is installed on by dormant bolt (7) on spacer sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607119.0U CN207637702U (en) | 2017-11-27 | 2017-11-27 | A kind of breaker over-travel spring adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607119.0U CN207637702U (en) | 2017-11-27 | 2017-11-27 | A kind of breaker over-travel spring adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207637702U true CN207637702U (en) | 2018-07-20 |
Family
ID=62854387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721607119.0U Active CN207637702U (en) | 2017-11-27 | 2017-11-27 | A kind of breaker over-travel spring adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207637702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114429881A (en) * | 2021-12-21 | 2022-05-03 | 平高集团有限公司 | Vacuum circuit breaker |
-
2017
- 2017-11-27 CN CN201721607119.0U patent/CN207637702U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114429881A (en) * | 2021-12-21 | 2022-05-03 | 平高集团有限公司 | Vacuum circuit breaker |
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