CN202633139U - Three-station isolating grounding switch with double guiding rod and connection rod transmission structure - Google Patents
Three-station isolating grounding switch with double guiding rod and connection rod transmission structure Download PDFInfo
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- CN202633139U CN202633139U CN 201220320584 CN201220320584U CN202633139U CN 202633139 U CN202633139 U CN 202633139U CN 201220320584 CN201220320584 CN 201220320584 CN 201220320584 U CN201220320584 U CN 201220320584U CN 202633139 U CN202633139 U CN 202633139U
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- grounding
- isolating
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Abstract
The utility model discloses a three-station isolating grounding switch with a double guiding rod and connection rod transmission structure, which comprises a contact base. The big head end of a transmission crank arm is fixed on a switch insulating main shaft; one end of a grounding conducting rod fits a grounding middle contact and a grounding static contact, and the other end of the grounding conducting rod is hinged with the small head end of the transmission crank arm through a grounding connection rod; and one end of an isolating conducting rod fits an isolating middle contact and an isolating static contact, and the other end of the isolating conducting rod is hinged with the small head end of the transmission crank arm. The three-station isolating grounding switch with a double guiding rod and connection rod transmission structure has the advantages of direct and simple transmission and small space required by switch installation; the isolating grounding movable and static contacts are in direct butt joint and insertion, the resistance is low, and the alignment is easy so as to ensure the touch reliability of the insertion of the movable contact; and the three-station isolating grounding switch with a double guiding rod and connection rod transmission structure integrates the advantage of the linear transmission and the swinging direct transmission of the traditional grounding switch and completely solves the defect of the traditional grounding switch.
Description
Technical field
The utility model relates to a kind of isolation earthing switch, relates in particular to a kind of pair of conducting rod connecting rod drive mechanism three station isolation earthing switch.
Background technology
Cubicle Gas-Insulated Switchgear (being called for short GIS) is that the all-closed combined High-Voltage Electrical Appliances with the SF6 insulating gas are filled in inside; Because its integrated degree high (integrating circuit breaker, isolating switch, instrument transformer, earthed switch etc.); Floor space is little; Safe and reliable, in electrical network, obtained application more and more widely.Particularly high pressure 126kV, 252kV and superhigh pressure field, Cubicle Gas-Insulated Switchgear (being called for short GIS) has occupied main status in electrical network.
GIS is high in reliability, volume is little in order fully to satisfy, the requirement of light weight and aspect such as non-maintaining; The used isolation earthing switch of GIS progressively adopts fabricated structure; Three station isolation earthing switch are products of isolating switch and earthed switch function combinations one, can make major loop be in conducting, isolation, three kinds of operating states of ground connection according to the action of operating mechanism.Isolating switch is at the zero load following deciliter circuit of ultra-high-tension power transmission line generally speaking, to reach conversion and the interruption maintenance purpose that realizes circuit, and under specific circumstances also can deciliter limited certain loads.Earthed switch is mainly used in loop ground connection.
The moving contact structure of the three station isolation earthing switch that generally use at present mainly contains the transmission of linear pattern rack-and-pinion and two kinds of versions of the direct transmission of oscillating-type with the transmission of operation rotating shaft and moving contact; The transmission of linear pattern rack-and-pinion adopts single moving contact rectilinear motion to realize three kinds of operating states of three station isolation earthing switch; Movement travel is long; Isolate the ground connection fixed contact and arrange point-blank, it is big that switch is installed required bulk.In order to satisfy the requirement of space structure, leading body all adopts the polymorphic structure aluminum casting, and rack-and-pinion transmission manufacturing, installation accuracy have relatively high expectations, thereby cost is also higher.The direct drive isolation earthing switch of oscillating-type adopts moving contact to realize three kinds of operating states of three station isolation earthing switch around operation rotating shaft rotary oscillation; Transmission is directly simple, isolates the ground connection fixed contact and can become various angles to arrange, it is little that switch is installed required bulk; But need rotate the butt joint plug owing to isolate the ground connection dynamic/static contact; If adopt circular conducting rod Mume flower contact can cause die misalignment, the contact contact is bad to cause heating, thereby influences the electric conductivity of three station isolation earthing switch.And adopt blade plug-in type contact, and then can make contact shape produce corner angle, have influence on electric field evenly to distribute, be difficult to also accomplish that electric field is even even shield member is set in addition, thereby influence the insulation property of three station isolation earthing switch.
Summary of the invention
The utility model technical problem to be solved provides a kind of pair of conducting rod connecting rod drive mechanism three station isolation earthing switch; Traditional earthed switch be can overcome and linear pattern transmission or the direct drive defective of oscillating-type adopted; Installation footprint is little, electric conductivity and good insulation preformance.
For solving the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of pair of conducting rod connecting rod drive mechanism three station isolation earthing switch; Comprise touch base, be equipped with on the touch base and isolate middle contact and the middle contact of ground connection that the switch insulation main shaft is connected with the motor operating mechanism; The isolation fixed contact is installed on the main bus bar
The stub end of transmission crank arm is fixed on the switch insulation main shaft; Ground connection conducting rod one end matches with middle contact of ground connection and ground connection fixed contact; The ground connection conducting rod other end is hinged through the little head end of ground connection connecting rod and transmission crank arm; Isolate conductive bar one end matches with the isolation fixed contact with isolating middle contact, and the little head end of the isolate conductive bar other end and transmission crank arm is hinged.
The ground connection fixed contact is connected with ground insulation.
Ground connection conducting rod and isolate conductive bar are the cylindrical conductive bar, and the middle contact of contact, ground connection fixed contact, isolation fixed contact and isolation is Mume flower contact in the middle of the ground connection.
Two conducting rod connecting rod drive mechanism three station isolation earthing switch that the utility model provides; Owing to adopted the two conducting rod connecting rod drive mechanisms of ground connection conducting rod and isolate conductive bar; Be that direct transmission is adopted moving contact to do straight line through the connecting lever operation to move and realize three kinds of operating states of three station isolation earthing switch; Transmission is directly simple, and it is little that switch is installed required bulk, and isolates the ground connection dynamic/static contact and directly dock plug; Resistance is little, be easy to aim at, and guaranteed the contact reliability that moving contact inserts; The utility model combines traditional earthed switch and adopts linear pattern transmission and the direct drive advantage of oscillating-type, has thoroughly solved the defective of its existence; Fixed contact adopts Mume flower contact, and ground connection conducting rod and isolate conductive bar adopt the cylindrical conductive bar, have guaranteed that further the conduction reliability and the Electric Field Distribution of contact is even.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the structural representation of the utility model, and this moment, the utility model was in the ground connection service position in major loop;
Fig. 2 is in the sketch map of isolating the service position in major loop for the utility model;
Fig. 3 is in the sketch map of ground connection service position in major loop for the utility model.
Embodiment
As shown in Figure 1, the utility model comprises touch base 8, is equipped with on the touch base 8 to isolate middle contact 3 and the middle contact 10 of ground connection, and the switch insulation main shaft is connected with the motor operating mechanism through kinematic link, be equipped with on the main bus bar 1 to isolate fixed contact 2,
The stub end of transmission crank arm 6 is fixed on the switch insulation main shaft; Ground connection conducting rod 9 one ends match with ground connection fixed contact 11 with the middle contact 10 of ground connection; Ground connection conducting rod 9 other ends are hinged with the little head end of transmission crank arm 6 through ground connection connecting rod 7; Isolate conductive bar 4 one ends match with isolation fixed contact 2 with isolating middle contact 3, and the little head end of isolate conductive bar 4 other ends and transmission crank arm 6 is hinged.
Ground connection fixed contact 11 is connected with ground insulation 12.
Ground connection conducting rod 9 is the cylindrical conductive bar with isolate conductive bar 4, isolates fixed contact 2, the middle contact 3 of isolation, the middle contact 10 of ground connection and ground connection fixed contact 11 and is Mume flower contact.
The course of work of the utility model is following:
1. be transformed into the isolated location from connecting the service position: the switch insulation main shaft is driven in rotation under the actuating of motor operating mechanism; Transmission crank arm 6 rotations on the switch insulation main shaft drive spacer link 5 and do curvilinear motion; Spacer link 5 drives isolate conductive bar 4 and does rectilinear motion, isolate conductive bar 4 (moving contact) is withdrawed from from the isolation fixed contact 2 that inserts get into the isolated location; Meanwhile, transmission crank arm 6 rotations drive ground connection connecting rod 7 and do curvilinear motion, and ground connection connecting rod 7 promotes ground connection conducting rod 9 and inserts the middle contact 10 of ground connection from ready position, gets into the isolated location, and the utility model is accomplished the conversion from the on-position to the isolated location.
The utility model is the intermediateness of three station isolation earthing switch of two conducting rod connecting rod drive mechanisms when the isolated location, and this state both can convert on-position rapidly into, also can be exchanged into earthing position, and the concrete course of work is as depicted in figs. 1 and 2.
2. be transformed into earthing position from the isolated location: the rotation under the motor operating mechanism drives of the transmission crank arm 6 on the switch insulation main shaft drives ground connection connecting rod 7; Ground connection connecting rod 7 promotes ground connection conducting rod 9 and does rectilinear motion insertion ground connection fixed contact 11; Meanwhile; Spacer link 5 promotes isolate conductive bar 4 from the middle contact 3 of the isolation of inserting, and gets into ready position.This moment, the utility model was accomplished landing operation, and the concrete course of work as shown in Figures 2 and 3.
Get back to isolated location-connection service position from earthing position: actuating motor operating mechanism (this moment the direction of motion and above-mentioned 1. 2. the course of work is opposite); Transmission crank arm 6 rotations on the switch insulation main shaft drive spacer link 5, and spacer link 5 promotes isolate conductive bar 4 and does rectilinear motion insertion isolation fixed contact 2.Meanwhile, ground connection connecting rod 7 drives ground connection conducting rod 9 and from ground connection fixed contact 11, extracts out, rests on the middle contact 10 of ground connection, makes isolating switch get back to the isolated location again.Transmission crank arm 6 on the switch insulation main shaft continues rotation and drives spacer link 5; Spacer link 5 promotes isolate conductive bar 4 and does the isolation fixed contact 2 on the rectilinear motion insertion main bus bar 1; Ground connection connecting rod 7 drives ground connection conducting rod 9 and in the middle of ground connection, withdraws from the contact 10, gets back to ready position.This moment, the three station isolation earthing switch of the utility model were got back to the service position of connecting major loop, and are as shown in Figure 1.
The utility model is hermetically sealed and be filled with in the GIS pot type volume of SF6 gas of certain pressure major loop is realized connection, isolation, three kinds of operating states of ground connection.
Claims (3)
1. two conducting rod connecting rod drive mechanism three station isolation earthing switch; Comprise touch base (8); Be equipped with on the touch base (8) and isolate middle contact (3) and the middle contact (10) of ground connection; The switch insulation main shaft is connected with the motor operating mechanism, is equipped with on the main bus bar (1) to isolate fixed contact (2), it is characterized in that:
The stub end of transmission crank arm (6) is fixed on the switch insulation main shaft; Ground connection conducting rod (9) one ends match with middle contact (10) of ground connection and ground connection fixed contact (11); Ground connection conducting rod (9) other end is hinged with the little head end of transmission crank arm (6) through ground connection connecting rod (7); Isolate conductive bar (4) one ends match with isolating middle contact (3) and isolation fixed contact (2), and the little head end of isolate conductive bar (4) other end and transmission crank arm (6) is hinged.
2. according to claim 1 pair of conducting rod connecting rod drive mechanism three station isolation earthing switch is characterized in that: ground connection fixed contact (11) is connected with ground insulation (12).
3. according to claim 1 and 2 pair of conducting rod connecting rod drive mechanism three station isolation earthing switch; It is characterized in that: ground connection conducting rod (9) and isolate conductive bar (4) are the cylindrical conductive bar, and contact (10), ground connection fixed contact (11), isolation fixed contact (2) and the middle contact of isolation (3) are Mume flower contact in the middle of the ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320584 CN202633139U (en) | 2012-07-04 | 2012-07-04 | Three-station isolating grounding switch with double guiding rod and connection rod transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320584 CN202633139U (en) | 2012-07-04 | 2012-07-04 | Three-station isolating grounding switch with double guiding rod and connection rod transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202633139U true CN202633139U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320584 Expired - Lifetime CN202633139U (en) | 2012-07-04 | 2012-07-04 | Three-station isolating grounding switch with double guiding rod and connection rod transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202633139U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280369A (en) * | 2013-06-19 | 2013-09-04 | 郭建厂 | Outdoor enclosed type visual intelligent isolating and grounding switch |
| CN103426677A (en) * | 2013-08-06 | 2013-12-04 | 国家电网公司 | Novel three-position driving device |
| CN103531396A (en) * | 2012-07-04 | 2014-01-22 | 乐星湖开电气（湖北）有限公司 | Three-station isolating grounding switch with double guiding rod and connection rod transmission structure |
| CN114300295A (en) * | 2021-11-25 | 2022-04-08 | 河南平高电气股份有限公司 | Earthing switch for GIS |
-
2012
- 2012-07-04 CN CN 201220320584 patent/CN202633139U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531396A (en) * | 2012-07-04 | 2014-01-22 | 乐星湖开电气（湖北）有限公司 | Three-station isolating grounding switch with double guiding rod and connection rod transmission structure |
| CN103280369A (en) * | 2013-06-19 | 2013-09-04 | 郭建厂 | Outdoor enclosed type visual intelligent isolating and grounding switch |
| CN103280369B (en) * | 2013-06-19 | 2015-12-23 | 江苏智临电气科技有限公司 | Outdoor fixed sealing type visible intelligent isolation, earthed switch |
| CN103426677A (en) * | 2013-08-06 | 2013-12-04 | 国家电网公司 | Novel three-position driving device |
| CN103426677B (en) * | 2013-08-06 | 2016-06-22 | 国家电网公司 | A kind of three position transmission devices |
| CN114300295A (en) * | 2021-11-25 | 2022-04-08 | 河南平高电气股份有限公司 | Earthing switch for GIS |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee after: HUBEI HUKAI ELECTRIC CO.,LTD. Address before: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee before: Lexing Hukai Electrical (Hubei) Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190904 Address after: 238300 Wuwei Economic Development Zone Chengdong Park, Wuhu City, Anhui Province Patentee after: Angao Electric Co.,Ltd. Address before: 443004 No. 100 Tan Tan Road, Point Military Area, Yichang, Hubei Patentee before: HUBEI HUKAI ELECTRIC CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |