CN203325732U - Side plate for main shaft of circuit breaker operating mechanism - Google Patents
Side plate for main shaft of circuit breaker operating mechanism Download PDFInfo
- Publication number
- CN203325732U CN203325732U CN2013203003479U CN201320300347U CN203325732U CN 203325732 U CN203325732 U CN 203325732U CN 2013203003479 U CN2013203003479 U CN 2013203003479U CN 201320300347 U CN201320300347 U CN 201320300347U CN 203325732 U CN203325732 U CN 203325732U
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- CN
- China
- Prior art keywords
- side plate
- main shaft
- circuit breaker
- plate body
- operating mechanism
- 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 - Lifetime
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Abstract
A side plate for a main shaft of a circuit breaker operating mechanism comprises a side plate body which is provided with a slot used for being connected with the main shaft. The slot includes an opening part and an arc-shaped bottom part, wherein the opening part is formed by two parallel straight edges, the arc-shaped bottom part is connected with the opening part through two bevel edges, and the two bevel edges form tangent edges tangent to the main shaft of the operating mechanism. The side plate further comprises a least two reinforcing plates, the reinforcing plates are symmetrically connected to the two sides of the side plate body and are provided with slots structurally identical to the slot of the side plate body, and all the slots overlap and are connected into a thickened integrated body. The side plate of the utility model is positioned only through upper and lower contact points thereof, friction is significantly reduced, and the service life of the mechanism is improved. As the reinforcing plates are added, the thickness of the contact surface is increased, the strength of the contact surface is enhanced, and the side plate can be prevented from deformation.
Description
Technical field
The utility model relates to electric component, relates in particular to a kind of side plate for the circuit breaker operation mechanism main shaft.
Background technology
Operating mechanism is the important drive disk assembly of circuit breaker, possesses circuit breaker and can carry out normal energy storage closing, sub-switching operation function.The operating mechanism energy storage, release spring potential energy after energy through linkage and finally pass to the contact system of body by main shaft, general main shaft and inter-agencyly be arranged on side plate by bearing shell, main shaft revolute pair, again by the revolute pair parts such as support spindle mounted on body, as shown in Figure 1.The lateral plate structure of prior art as shown in Figure 2, comprises side plate body 1, is provided with the semicircle slotted eye 11 for main shaft, sliding and be connected on side plate body 1.The problem that this lateral plate structure and mounting means exist is, the contact-making surface between side plate body 1 and main shaft 2 is too large, and frictional force is large, and contact-making surface is too thin, and side plate is yielding.
The utility model content
The purpose of this utility model, the problem existed in order to solve above-mentioned prior art exactly, provide a kind of side plate for the circuit breaker operation mechanism main shaft.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of side plate for the circuit breaker operation mechanism main shaft, comprise the side plate body, and be provided with the slotted eye for being connected with main shaft on the side plate body; Described slotted eye comprises peristome and the curved bottom be comprised of two parallel straight flanges, between curved bottom and peristome, by two hypotenuses, is connected, and two hypotenuses form the trimmings tangent with mechanism's main shaft; Also comprise at least two stiffeners, each stiffener symmetry is connected to the both sides of described side plate body and has and the identical slotted eye of described slotted hole structure, the overlapping integral body that is linked to be thickening of each slotted eye.
The width of described peristome is greater than the diameter of mechanism's main shaft.
Described stiffener is four.
Between described stiffener and side plate body, by rivet, be connected.
The utility model, owing to having adopted above technical scheme, has following advantage and disadvantage:
1, side plate of the present utility model can unidirectional being installed on mechanism's main shaft.
2, side plate of the present utility model is located by upper and lower two contact points of side plate, has significantly reduced frictional force, has improved mechanism useful life.
3, side plate of the present utility model has been thickeied the thickness of contact-making surface, has strengthened the intensity of contact-making surface, can prevent the side plate distortion.
The accompanying drawing explanation
Fig. 1 is the confined state schematic diagram of prior art circuit breaker operation mechanism main shaft and side plate;
Fig. 2 is the structural representation of prior art side plate;
Fig. 3 is the structural representation of the side plate body in the utility model;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the structural representation of the stiffener in the utility model;
Fig. 6 is side plate installation diagram of the present utility model;
Fig. 7 is the installation diagram of side plate of the present utility model and main shaft;
Fig. 8 is the assembly state diagram that side plate of the present utility model is installed on mechanism.
Embodiment
Referring to Fig. 3, coordinate referring to Fig. 4, Fig. 5, Fig. 6, the side plate for the circuit breaker operation mechanism main shaft of the present utility model, comprise side plate body 3, is provided with the slotted eye 4 for being connected with main shaft on the side plate body; This slotted eye 4 comprises peristome and the curved bottom 43 be comprised of two parallel straight flanges 41,42, between curved bottom and peristome, by two hypotenuses 44,45, is connected, and two hypotenuses form the trimmings tangent with mechanism's main shaft; Also comprise four stiffeners 5, each stiffener symmetry is connected to the both sides of described side plate body and has and the identical slotted eye of described slotted hole structure, the overlapping integral body that is linked to be thickening of each slotted eye.Between each stiffener 5 and side plate body 3, by rivet 6 riveted joints, be connected.
The width of the peristome in the utility model is greater than the diameter of mechanism's main shaft, when side plate when the mechanism main shaft is connected, only have upper and lower two point of contact a, b (coordinating referring to Fig. 7) to contact, when work, the rotation of main shaft makes side plate that upper and lower two point of contacts and main shaft generation rolling friction only be arranged, frictional force when energy reducing mechanism main shaft rotates, improved transmission efficiency.4 stiffeners have been strengthened the intensity of contact-making surface, particularly in large specification circuit breaker, while requiring operating mechanism to export larger power, improving transmission efficiency has a significant effect, can increase the end pressure of contact system, reduce temperature rise, improve short time withstand current disjunction index etc.
Fig. 8 is the assembly state diagram that side plate of the present utility model is installed on mechanism.
Claims (4)
1. the side plate for the circuit breaker operation mechanism main shaft, comprise the side plate body, is provided with the slotted eye for being connected with main shaft on the side plate body; It is characterized in that: described slotted eye comprises peristome and the curved bottom be comprised of two parallel straight flanges, between curved bottom and peristome, by two hypotenuses, is connected, and two hypotenuses form the trimmings tangent with mechanism's main shaft; Also comprise at least two stiffeners, each stiffener symmetry is connected to the both sides of described side plate body and has and the identical slotted eye of described slotted hole structure, the overlapping integral body that is linked to be thickening of each slotted eye.
2. the side plate for the circuit breaker operation mechanism main shaft according to claim 1, it is characterized in that: the width of described peristome is greater than the diameter of mechanism's main shaft.
3. the side plate for the circuit breaker operation mechanism main shaft according to claim 1, it is characterized in that: described stiffener is four.
4. the side plate for the circuit breaker operation mechanism main shaft according to claim 1 is characterized in that: between described stiffener and side plate body, by rivet, be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203003479U CN203325732U (en) | 2013-05-28 | 2013-05-28 | Side plate for main shaft of circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203003479U CN203325732U (en) | 2013-05-28 | 2013-05-28 | Side plate for main shaft of circuit breaker operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325732U true CN203325732U (en) | 2013-12-04 |
Family
ID=49665044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203003479U Expired - Lifetime CN203325732U (en) | 2013-05-28 | 2013-05-28 | Side plate for main shaft of circuit breaker operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481896A (en) * | 2016-06-07 | 2017-12-15 | 上海电器股份有限公司人民电器厂 | A kind of circuit breaker operation mechanism fixing device |
-
2013
- 2013-05-28 CN CN2013203003479U patent/CN203325732U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481896A (en) * | 2016-06-07 | 2017-12-15 | 上海电器股份有限公司人民电器厂 | A kind of circuit breaker operation mechanism fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term |