CN203118805U - Improved circuit breaker energy storage crank mechanism - Google Patents
Improved circuit breaker energy storage crank mechanism Download PDFInfo
- Publication number
- CN203118805U CN203118805U CN 201320151469 CN201320151469U CN203118805U CN 203118805 U CN203118805 U CN 203118805U CN 201320151469 CN201320151469 CN 201320151469 CN 201320151469 U CN201320151469 U CN 201320151469U CN 203118805 U CN203118805 U CN 203118805U
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- CN
- China
- Prior art keywords
- bearing
- crank
- support rod
- inner sleeve
- extension spring
- 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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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses an improved circuit breaker energy storage crank mechanism, which comprises a main shaft, a crank, a support rod and an extension spring, wherein one end of the main shaft is connected with the crank, the crank is connected with one end of the support rod, the other end of the support rod is connected with a bearing inner sleeve, a bearing outer sleeve is matched outside the bearing inner sleeve, the bearing inner sleeve and the bearing outer sleeve are movably connected in a spherical surface, the lower end of the bearing outer sleeve is fixedly connected with a screw rod, and the screw rod is connected with the extension spring. When storing energy, the main shaft and the crank rotate, the extension spring is driven to extent through the support rod, the bearing outer sleeve and the screw rod, and stores energy, the support rod still can bend under the pulling force of the extension spring, because the bearing inner sleeve and the bearing outer sleeve can rotate in an angle range at random, the force is uniform, and the damage phenomenon of an inner shaft sleeve can not be produced even though the support rod bends.
Description
Technical field
The utility model relates to a kind of circuit breaker, especially a kind of medium voltage breaker energy storage crank mechanism.
Background technology
Circuit breaker is main electric control appliance, its service behaviour has influence on the safe operation of electric power system, the energy storage crank mechanism is used for the preceding energy storage of breaker closing, its crucial force part is spring hanging plate, spring hanging plate is connected with pole by sliding bearing, spring hanging plate in the sliding bearing rotation simultaneously, give sliding bearing the pulling force along the spring shrinkage direction, pole is cantilever beam structure, crooked under the pulling force effect, prop up rod axis and spring hanging plate shrinkage direction out of plumb, spring hanging plate can cause extremely inhomogeneous pressure at sliding bearing, and local friction increases, except giving manpower or motor increase burden, also can reduce sliding bearing life, often occur sliding bearing local deformation in the use, the phenomenon of damaging.
Summary of the invention
At the deficiencies in the prior art part, the utility model aims to provide a kind of improved circuit breaker energy storage crank mechanism, guarantee stressed evenly, improve useful life.
For solving the problems of the technologies described above, the technical solution adopted in the utility model: a kind of improved circuit breaker energy storage crank mechanism, comprise main shaft, crank, pole, extension spring, main shaft one end connects with crank, and crank connects with pole one end, overlaps in pole other end coupling bearing, at the external bearing outside that is combined with of bearing inner sleeve, bearing inner sleeve is that the sphere activity connects with bearing outside, the screw rod that is fixedly connected in the bearing outside lower end, and screw rod and extension spring connect.
During energy storage, main shaft, crank rotation, drive spring and stretch by pole, bearing outside, screw rod, storage power, under spring tension, pole still can be crooked, because bearing inner sleeve and bearing outside can rotate arbitrarily in the certain angle scope, and stressed evenly, so even a rod bending, also the damage phenomenon of the internal axle sleeve that can not cause because of the local pressure inequality.
Because the displacement that bearing inner sleeve and bearing outside produce in can compensation work can effectively solve the problem that sliding bearing of the prior art damages, energy storage is required great effort.
Description of drawings
Fig. 1 is prior art circuit breaker energy storage crank mechanism schematic diagram;
Fig. 2 is the utility model structural representation;
In the accompanying drawing: 1 main shaft, 2 cranks, 3 pole 4a bearing inner sleeve 4b bearing outside 4c screw rods, 5 extension springs, 6 sliding bearings, 7 spring hanging plates.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, main shaft 1 one ends connect with crank 2, crank 2 connects with pole 3 one ends, pole 3 other ends connect with sliding bearing 6, sliding bearing 6 connects with spring hanging plate 7, because pole 3 is rigid attachment with sliding bearing 6, causes sliding bearing 6 unbalance stress, entire mechanism in the course of the work, sliding bearing 6 is fragile.
As shown in Figure 2, in bearing inner sleeve 4a fit on bearing outside 4b is arranged, bearing inner sleeve 4a is that the sphere activity connects with bearing outside 4b, just bearing inner sleeve 4a can rotate within the specific limits with respect to bearing outside 4b, but the two connection is in aggregates, in the course of the work, can not produce separation; The screw rod 4c that is fixedly connected in bearing outside 4b lower end, screw rod 4c and extension spring 5 connect; Bearing inner sleeve 4a is a kind of flexible connection with pole 3, and bearing inner sleeve 4a can compensate the displacement that pole 3 deformation produce, and cover 4a contact-making surface is stressed evenly in the oscillating bearing like this, and its working life prolongs relatively.
Claims (1)
1. improved circuit breaker energy storage crank mechanism, comprise main shaft (1), crank (2), pole (3), extension spring (5), main shaft (1) one end connects with crank (2), crank (2) connects with pole (3) one ends, it is characterized in that: cover (4a) in pole (3) other end coupling bearing, at the external bearing outside (4b) that is combined with of bearing inner sleeve (4a), bearing inner sleeve (4a) connects for sphere is movable with bearing outside (4b), screw rod (4c), screw rod (4c) and extension spring (5) connection are fixedly connected in bearing outside (4b) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151469 CN203118805U (en) | 2013-03-29 | 2013-03-29 | Improved circuit breaker energy storage crank mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320151469 CN203118805U (en) | 2013-03-29 | 2013-03-29 | Improved circuit breaker energy storage crank mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118805U true CN203118805U (en) | 2013-08-07 |
Family
ID=48899127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320151469 Expired - Fee Related CN203118805U (en) | 2013-03-29 | 2013-03-29 | Improved circuit breaker energy storage crank mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021159334A1 (en) * | 2020-02-12 | 2021-08-19 | Abb Power Grids Switzerland Ag | Balance spring assembly for disconnector |
-
2013
- 2013-03-29 CN CN 201320151469 patent/CN203118805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021159334A1 (en) * | 2020-02-12 | 2021-08-19 | Abb Power Grids Switzerland Ag | Balance spring assembly for disconnector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHONGQIAN ELECTRIC GROUP CO., LTD. Free format text: FORMER NAME: GUIZHOU ZHONGQUAN ELECTRIC GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 550014, 5 North cloud North Road, 350 North Road, Guizhou, Guiyang Patentee after: ZHONGQIAN ELECTRIC GROUP Address before: 550014, 5 North cloud North Road, 350 North Road, Guizhou, Guiyang Patentee before: Guizhou Zhongquan Electric Group Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Improved circuit breaker energy storage crank mechanism Effective date of registration: 20150731 Granted publication date: 20130807 Pledgee: Guiyang City, Guizhou Qingzhen Zhongquan microfinance Limited by Share Ltd Pledgor: ZHONGQIAN ELECTRIC GROUP Registration number: 2015520000004 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Improved circuit breaker energy storage crank mechanism Effective date of registration: 20160811 Granted publication date: 20130807 Pledgee: Guiyang City, Guizhou Qingzhen Zhongquan microfinance Limited by Share Ltd Pledgor: ZHONGQIAN ELECTRIC GROUP Registration number: 2016520000007 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160726 Granted publication date: 20130807 Pledgee: Guiyang City, Guizhou Qingzhen Zhongquan microfinance Limited by Share Ltd Pledgor: ZHONGQIAN ELECTRIC GROUP Registration number: 2015520000004 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20180329 |