CN201780938U - High-capacity universal circuit breaker operating mechanism - Google Patents
High-capacity universal circuit breaker operating mechanism Download PDFInfo
- Publication number
- CN201780938U CN201780938U CN201020296208XU CN201020296208U CN201780938U CN 201780938 U CN201780938 U CN 201780938U CN 201020296208X U CN201020296208X U CN 201020296208XU CN 201020296208 U CN201020296208 U CN 201020296208U CN 201780938 U CN201780938 U CN 201780938U
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- CN
- China
- Prior art keywords
- circuit breaker
- rotating shaft
- contact
- operating mechanism
- rotary shaft
- 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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Abstract
A high-capacity universal circuit breaker operating mechanism comprises a rotary shaft, a main mechanism and two sets of auxiliary mechanisms, wherein the rotary shaft is rotatably installed on a circuit breaker base, the main mechanism and the auxiliary mechanisms are fixedly connected with the rotary shaft, the main mechanism is arranged in the center of the rotary shaft, and the two auxiliary mechanism sets are arranged in bilateral symmetry centering on the main mechanism. The high-capacity universal circuit breaker operating mechanism is symmetrical in structure, low in rotary shaft deformation after being stressed during switching on, fine in contact over-travel terminal pressure and contact synchronism, fine in contact face reliability and small in mechanism resilient force.
Description
Technical field
The utility model belongs to big capacity omnipotent breaker field, relates in particular to a kind of big capacity omnipotent breaker operating mechanism.
Background technology
Along with China's net capacity constantly increases, the capacity of low-tension transformer also improves constantly, particularly the demand of 4000 ~ 6300A circuit breaker is increasing to big capacity omnipotent breaker, in order to guarantee fail safe, reliability, the continuity for distribution, requires also more and more higher to circuit breaker.
Existing big capacity omnipotent breaker (4000 ~ 6300A), all be to be spliced with two 3200A pedestals, product structure is asymmetric, operating mechanism can only be installed on the pedestal on the right, mechanism's rotating shaft is just extended to the left side from the right, adds an auxiliary body, and it is asymmetric to form structure, its shortcoming is: circuit breaker suffered active force of mechanism's rotating shaft under "on" position is partial to left end from right-hand member, is just transmitted to the left side by main machine frame the right.Because the rotating shaft distance is longer, active force is asymmetric, cause the rotating shaft distortion big, the contact over travel, the contact terminate pressure that produce circuit breaker all are to reduce gradually from right to left, the contact synchronism is inconsistent, and contact-making surface is unreliable, and temperature rise is higher in the time of can making circuit breaker work, thereby influence the complete machine performance of circuit breaker, make electrical network bring potential safety hazard for distribution.
Summary of the invention
Asymmetric in order to overcome the operating mechanism structure that has big capacity omnipotent breaker existence now, be subjected to during combined floodgate behind the active force that the rotating shaft distortion is big, contact over travel, contact terminate pressure, inconsistent, the insecure deficiency of contact-making surface of contact synchronism, the utility model provides a kind of symmetrical configuration, be subjected to when closing a floodgate that rotating shaft distortion behind the active force is little, contact over travel, contact terminate pressure, the contact synchronism is good, contact reliability is good big capacity omnipotent breaker operating mechanism.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of big capacity omnipotent breaker operating mechanism, comprise rotating shaft, main machine frame and auxiliary body, described rotating shaft is installed in rotation on the circuit breaker pedestal, described main machine frame is fixedlyed connected with rotating shaft with auxiliary body, described main machine frame is positioned at the center position of rotating shaft, there are two covers in described auxiliary body, and two cover auxiliary bodies are that the center is symmetrical set with the main machine frame.
Technical conceive of the present utility model: operating mechanism is when being assembled into complete machine, by main machine frame left-right symmetric distribution rotating shaft, by 2 auxiliary bodies rotating shaft evenly is fixed on the pedestal, again by support with the rotating shaft fixed limit, guarantee the depth of parallelism of operating mechanism, can guarantee the requirement of contact over travel, contact terminate pressure, advantages such as make the contact synchronism good, contact-making surface is big, and the contact bounce-back is little, thereby make circuit breaker improve performance greatly, avoided the defective of prior art.
The beneficial effects of the utility model mainly show: symmetrical configuration, mechanism is subjected to behind the active force that the rotating shaft distortion is little when closing a floodgate, contact over travel, contact terminate pressure, the contact synchronism is good, the contact-making surface reliability is good.Mechanism's bounce is little during separating brake.
Description of drawings
The big capacity omnipotent breaker of Fig. 1 operating mechanism structural representation.
The big capacity omnipotent breaker of Fig. 2 operating mechanism scheme of installation.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described
With reference to Fig. 1 ~ Fig. 2, a kind of big capacity omnipotent breaker operating mechanism, Fig. 1 is the operating mechanism scheme of installation, comprise main machine frame 1, auxiliary body 2 and rotating shaft 3, described rotating shaft 3 is installed in rotation on the circuit breaker pedestal, and described main machine frame 1 is installed in the center position of rotating shaft 3, i.e. circuit breaker pedestal center position, described auxiliary body 2 is symmetrical in main machine frame 1 respectively and is fixed in the circuit breaker pedestal, described rotating shaft 3 fixedly connected respectively main machine frame 1 and auxiliary body 2.
After big capacity omnipotent breaker closes a floodgate, main machine frame 1 mediates, both sides are spacing by two auxiliary bodies 2 again, the spacing switching force of support with main machine frame be uniformly distributed in rotating shaft 3 every extremely in, thereby effectively prevent rotating shaft 3 distortion, make rotating shaft have the good depth of parallelism to guarantee that every phase contact has enough excess of stroke and pressure, and the contact synchronism is consistent.When big capacity omnipotent breaker separating brake, in the contact bounce effect rotating shaft 3, spring in the auxiliary body 2 of main machine frame 1 both sides is strained rotating shaft rapidly, make its quick and synchronous reset, prevent that contact from rebounding once more, causes arc reignition, auxiliary switch is by the conversion that resets of rotating shaft 3, because reaction spring makes the rotating shaft reliable reset, the assurance auxiliary switch is reliably changed, thereby has improved the security reliability of big capacity omnipotent breaker greatly.
Claims (1)
1. one kind big capacity omnipotent breaker operating mechanism, comprise rotating shaft, main machine frame and auxiliary body, described rotating shaft is installed in rotation on the circuit breaker pedestal, described main machine frame is fixedlyed connected with rotating shaft with auxiliary body, it is characterized in that: described main machine frame is positioned at the center position of rotating shaft, there are two covers in described auxiliary body, and two cover auxiliary bodies are that the center is symmetrical set with the main machine frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020296208XU CN201780938U (en) | 2010-08-19 | 2010-08-19 | High-capacity universal circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020296208XU CN201780938U (en) | 2010-08-19 | 2010-08-19 | High-capacity universal circuit breaker operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201780938U true CN201780938U (en) | 2011-03-30 |
Family
ID=43794143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020296208XU Expired - Fee Related CN201780938U (en) | 2010-08-19 | 2010-08-19 | High-capacity universal circuit breaker operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201780938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496527A (en) * | 2011-12-26 | 2012-06-13 | 安徽鑫龙电器股份有限公司 | High-capacity circuit breaker |
-
2010
- 2010-08-19 CN CN201020296208XU patent/CN201780938U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496527A (en) * | 2011-12-26 | 2012-06-13 | 安徽鑫龙电器股份有限公司 | High-capacity circuit breaker |
| CN102496527B (en) * | 2011-12-26 | 2015-01-28 | 安徽鑫龙电器股份有限公司 | High-capacity circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20150819 |
|
| EXPY | Termination of patent right or utility model |