CN203562336U - High voltage grounding switch two step motion transmission mechanism - Google Patents
High voltage grounding switch two step motion transmission mechanism Download PDFInfo
- Publication number
- CN203562336U CN203562336U CN201320707383.7U CN201320707383U CN203562336U CN 203562336 U CN203562336 U CN 203562336U CN 201320707383 U CN201320707383 U CN 201320707383U CN 203562336 U CN203562336 U CN 203562336U
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- arm
- transmission mechanism
- high voltage
- ground connection
- rocking arm
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- Expired - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a high voltage grounding switch two step motion transmission mechanism. The mechanism is characterized in that a bottom end of a grounding conduction pipe is provided with a rocking arm; the rocking arm is connected with one end of a transmission arm and one end of a link arm respectively through a shaft pin respectively; the other end of the transmission arm and the other end of the rocking arm are connected to a pedestal through a main shaft and a countershaft respectively. Therefore, a four-connecting-rod structure is formed. Through using a principle that the four-connecting-rod structure can change a motion speed and a track, a process that a grounding conduction pipe carries out arc rotation firstly and then carries out rectilinear movement can be completed in one step.
Description
Technical field
The utility model relates to a kind of appliance switch part, particularly a kind of high voltage ground switch two-step action transmission mechanism.
Background technology
The manner of execution that earthed switch divides, closes a floodgate is divided into two kinds substantially: (first making process does camber line and rotate for a step action combined floodgate formula (moving contact is directly beated in, and static contact seat is interior to close a floodgate) and two-step action combined floodgate formula, move linearly, moving contact inserts in static contact seat and closes a floodgate again).At present, 252kV and above large current grounding switch still adopt two-step action close a floodgate traditional structure, the feed motion principle of this structure is: close a floodgate be initially transmission mechanism hold ground connection contact tube upwards do camber line rotate; Ground connection contact tube is to rely on notch to be thereon pressed in by the elastic force of jump ring with transmission mechanism, to do camber line in the card frame of mechanism to rotate.When ground connection contact tube rotates about 80 °, it arrives static contact seat and is stoped and can not be rotated further by static contact seat, but now transmission mechanism is also being rotated further, the rotating torque acting on ground connection contact tube increases suddenly, when the rotating torque of transmission mechanism is enough to overcome contact tube from gravity and jump ring elastic force, transmission mechanism just promote ground connection contact tube go out card frame stop start along the direction of ground connection contact tube, do forward rectilinear motion, and the moving contact that promotes ground connection contact tube end enters in static contact seat along the guiding on fingertip surface, complete feed motion.The problem that this structure exists is: when camber line changes rectilinear movement into, must be to make rotating torque be greater than jump ring elastic force after camber line rotation is stopped, rely on guiding could continue to move linearly.As contact tube in camber line rotation process, stopped unexpectedly, or because jump ring lost efficacy while elastic force being weakened contact tube can not be pressed in card frame, transmission mechanism just can not, by the track execution of expecting, cause earthed switch to close a floodgate unsuccessfully.
Summary of the invention
The purpose of this utility model is to provide the high voltage ground switch two-step action transmission mechanism of a kind of features simple structure, reliable in action.
Technical solution of the present utility model is: a kind of high voltage ground switch two-step action transmission mechanism, comprise ground connection contact tube, pedestal, the bottom that it is characterized in that ground connection contact tube is provided with rocking arm, the end of this rocking arm is connected with one end of transmission arm and link arm respectively by pivot pin, and the other end of transmission arm and rocking arm is connected on pedestal by main shaft and countershaft respectively.
Between described link arm and pedestal, be provided with torque spring.
The top of described ground connection contact tube is provided with moving contact.
Between rocking arm of the present utility model, transmission arm, link arm and pedestal, by pivot pin and rotating shaft, connect as one, formed a kind of quadric chain, utilize quadric chain can change the principle of movement velocity and track, realized ground connection contact tube and first done camber line and rotate a step of doing again rectilinear movement this process and complete.
The utility model relies on the conversion of self-movement locus, thereby just can realize without any need for the guiding of external force and static contact seat, first camber line rotates, rectilinear movement completes earthed switch combined floodgate again, and it is simple in structure, moves safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the present embodiment has provided a transmission mechanism that the independent structure of ground connection contact tube is housed.During three utmost point interlocks, can the transmission mechanism of three independent structures be interconnected by interpolar link rod.What the present embodiment provided is the ground connection contact tube schematic diagram in open position and closing position respectively, the bottom that wherein top is provided with the ground connection contact tube 2 of moving contact 1 is provided with rocking arm 3; rocking arm end is connected with one end of transmission arm 6 and link arm 7 respectively with pivot pin 5 by pivot pin 4, and the other end of transmission arm and link arm is connected on pedestal 10 by main shaft 8 and countershaft 9 respectively.Rocking arm, transmission arm, link arm and pedestal have connected and composed a four-bar linkage structure by two pivot pins and two rotating shafts.
In addition, on link arm and pedestal, be provided with the torque spring 11 for energy storage.
When operating mechanism is applied to transmission arm by main shaft by moment and drives link arm to rotate along clockwise direction together with rocking arm; the ground connection contact tube on rocking arm also rotates along with doing along clockwise direction together camber line; this process torque spring releases energy, to reduce operating physical force.When ground connection contact tube turns to while approaching static contact seat, under the effect of link arm, start to do the contact that rectilinear movement upwards promotion be arranged on ground connection contact tube end and enter in static contact seat 12, complete the feed motion of earthed switch.In contrast, torque spring is storage power under the effect of ground connection contact tube gravity for separating brake process.
Structure of the present utility model is not limited to above-described embodiment.
Claims (3)
1. a high voltage ground switch two-step action transmission mechanism, comprise ground connection contact tube, pedestal, the bottom that it is characterized in that ground connection contact tube is provided with rocking arm, the end of this rocking arm is connected with one end of transmission arm and link arm respectively by pivot pin, and the other end of transmission arm and rocking arm is connected on pedestal by main shaft and countershaft respectively.
2. according to the high voltage ground switch two-step action transmission mechanism described in claim 1, it is characterized in that being provided with torque spring between link arm and pedestal.
3. according to the high voltage ground switch two-step action transmission mechanism described in claim 1, it is characterized in that the top of ground connection contact tube is provided with moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707383.7U CN203562336U (en) | 2013-11-11 | 2013-11-11 | High voltage grounding switch two step motion transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320707383.7U CN203562336U (en) | 2013-11-11 | 2013-11-11 | High voltage grounding switch two step motion transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203562336U true CN203562336U (en) | 2014-04-23 |
Family
ID=50512038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320707383.7U Expired - Fee Related CN203562336U (en) | 2013-11-11 | 2013-11-11 | High voltage grounding switch two step motion transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203562336U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560024A (en) * | 2013-11-11 | 2014-02-05 | 大连高压开关电器有限公司 | High-voltage grounding switch two-step action transmission mechanism |
-
2013
- 2013-11-11 CN CN201320707383.7U patent/CN203562336U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560024A (en) * | 2013-11-11 | 2014-02-05 | 大连高压开关电器有限公司 | High-voltage grounding switch two-step action transmission mechanism |
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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: 20140423 Termination date: 20191111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |