CN201570391U - Driver of switch equipment stroke switch contact point - Google Patents
Driver of switch equipment stroke switch contact point Download PDFInfo
- Publication number
- CN201570391U CN201570391U CN2009202243110U CN200920224311U CN201570391U CN 201570391 U CN201570391 U CN 201570391U CN 2009202243110 U CN2009202243110 U CN 2009202243110U CN 200920224311 U CN200920224311 U CN 200920224311U CN 201570391 U CN201570391 U CN 201570391U
- Authority
- CN
- China
- Prior art keywords
- contact
- involute
- switch
- travel switch
- cam
- 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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- Mechanisms For Operating Contacts (AREA)
Abstract
The utility model discloses a driver of a switch equipment stroke switch contact point, which belongs to an involute cam (6), wherein the cam (6) is provided with an involute outline surface. The involute cam (6) drives a contact of a stroke switch at a uniform speed through the involute outline surface during the rotation so that the contact acts. Only when a rotating shaft acts a certain angle, the contact of the stroke switch can reliably act, and the fault that the contact can not be effectively closed can not occur, and in addition, even when the rotation angle of the rotating shaft is enlarged, the phenomenon of press damage of the stroke switch like a tubular crank arm transmission can not occur.
Description
Technical field
The utility model relates to the contact drive unit of a kind of switchgear travel switch in the electrical power distribution system.
Background technology
In the power transmission and distribution product, some switchgears (as primary cut-out, high voltage load switch, high voltage isolator, earthed switch etc.) need the installing travel switch, the contact of travel switch is closed or disconnection under the driving of switchgear connecting lever plate, being used for providing signal for switchgear outside or a distant place, is to be in to close a floodgate or the operating state of separating brake with display switch equipment.On these switchgears, what drive the travel switch contact all is a tabular connecting lever, and this connecting lever rotates under the drive of rotating shaft on the switch, is pressing the contact of travel switch to make its action during rotation, connecting lever back rotates, and leaves promptly that the contact of travel switch resets behind the travel switch.Yet this is by the structure of tabular connecting lever rotation transmission, and such problem often occurs: because the variation of rotating shaft output angle, the connecting lever rotation is not in place, and the contact of travel switch fails to move or connecting lever rotates through the position, damages travel switch by pressure.
The utility model content
The utility model is to provide a kind of and guarantees that contact can effectively closed switchgear travel switch contact drive unit.
The technical solution of the utility model is: a kind of switchgear travel switch contact drive unit, be characterised in that this drive unit is an involute cam, and cam has the involute contour face.
Involute cam rotates under the drive of rotating shaft, and involute cam at the uniform velocity drives the contact of travel switch by its involute contour face, makes the contact action.Need only rotating shaft action certain angle like this, the contact of travel switch is the energy action message just, the effectively fault of closure of contact can not occur, even the change of rotating shaft rotational angle is big in addition, also can not damage travel switch by pressure.
Description of drawings
Fig. 1 drives the preceding structural representation of connecting lever plate action for existing switchgear travel switch;
Fig. 2 is for having the structural representation after the switchgear travel switch drives the action of connecting lever plate now;
Fig. 3 is the structural representation before the utility model switchgear travel switch contact drive unit embodiment moves;
Fig. 4 is the structural representation after the utility model switchgear travel switch contact drive unit embodiment action.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, switch framework 2, tabular connecting lever 3, rotating shaft 4, hold-down screw 5, travel switch 6, involute cam
As shown in Figure 3, Figure 4, the utility model switchgear travel switch contact drive unit is an involute cam 6, and cam 6 has the involute contour face.
During real work, involute cam 6 rotates with rotating shaft 3, involute cam 6 promotes travel switch 5 by its involute shape contoured surface, makes the contact action of travel switch 5, rotating shaft 3 reverse rotations, the contact of travel switch 5 resets, need only rotating shaft 3 action certain angles like this, the contact of travel switch is the energy action message just, the effectively fault of closure of contact can not occur, even the rotating shaft rotational angle becomes big in addition, can not damage travel switch by pressure yet.
Claims (1)
1. switchgear travel switch contact drive unit, it is characterized in that: this drive unit is an involute cam (6), and cam (6) has the involute contour face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202243110U CN201570391U (en) | 2009-10-22 | 2009-10-22 | Driver of switch equipment stroke switch contact point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202243110U CN201570391U (en) | 2009-10-22 | 2009-10-22 | Driver of switch equipment stroke switch contact point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570391U true CN201570391U (en) | 2010-09-01 |
Family
ID=42662691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202243110U Expired - Fee Related CN201570391U (en) | 2009-10-22 | 2009-10-22 | Driver of switch equipment stroke switch contact point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142328A (en) * | 2010-12-27 | 2011-08-03 | 刘盖中 | Logic conversion switch |
-
2009
- 2009-10-22 CN CN2009202243110U patent/CN201570391U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142328A (en) * | 2010-12-27 | 2011-08-03 | 刘盖中 | Logic conversion switch |
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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: 20100901 Termination date: 20161022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |