CN102360980A - Three-working-position isolation switch - Google Patents
Three-working-position isolation switch Download PDFInfo
- Publication number
- CN102360980A CN102360980A CN201110296686XA CN201110296686A CN102360980A CN 102360980 A CN102360980 A CN 102360980A CN 201110296686X A CN201110296686X A CN 201110296686XA CN 201110296686 A CN201110296686 A CN 201110296686A CN 102360980 A CN102360980 A CN 102360980A
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- cutting blade
- aeration tank
- bolt
- fixed contact
- power transmission
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a three-working-position isolation switch used in a flame-proof electric appliance product controlled by an automatic complete equipment control system in a coal mine industry. The switch is a frameless vertical installation structure which is parallel to a bus. A main conductor is a copper knife shape structure. According to the invention, a manually operation mechanism is employed to carry out operation transmission, the operation mechanism is provided with locking devices at connection, isolation and grounding positions, positioning is carried out at each corresponding working position, and connection, isolation and grounding functions of the isolation switch are realized.
Description
Technical field
The present invention relates to be used for the flame proof electric equipment products that the colliery industry receives the control of automation complete set of equipments control system, the particularly employed tri-station isolating switch of these flame proof electric equipment products.
Background technology
Isolating switch is used for flame-proof mine malleation high-voltage feedback power device, as the usefulness of the connection of high pressure inlet wire bus, isolation, feeder equipment ground connection.It need have following three POF: isolating switch is connected (combined floodgate), feeder equipment is connected with bus receives; Isolating switch is isolated (separating brake), feeder equipment is broken off with bus separate; Isolating switch ground connection (earth terminal combined floodgate) is not having under the situation of load feeder equipment, earth terminal combined floodgate reliable ground, assurance feed dress load side safety and maintenance personal's safety.
Existing isolating switch is two station isolating switches, realizes combined floodgate, separating brake (isolation) by isolating switch, is grounded (earth terminal combined floodgate) by earthed switch, and isolating switch and earthed switch are operated respectively.Isolating switch is a tower structure, and mounting means is that level is installed, and current-carrying part is the knife-edge structure, connects with bus.Isolating switch is made up of fixed frame, leading electronic blade, power transmission shaft, insulated tension pole porcelain vase, fixed contact, porcelain insulator, transmission crank arm.The porcelain insulator of isolating switch porcelain vase when the impact that receives external force is broken easily; The dielectric strength of porcelain insulator is reduced greatly; Have a strong impact on the electric property of isolating switch, isolating switch can only use in the usefulness of air insualtion high voltage electric equipment as the isolation of power supply in addition.
Summary of the invention
To the above-mentioned shortcoming of existing isolating switch, the applicant improves through research, and a kind of tri-station isolating switch is provided.
Technical scheme of the present invention is following:
A kind of tri-station isolating switch; Comprise the power transmission shaft that is vertically mounted in the aeration tank; Bearing pedestal is installed in said power transmission shaft lower end and fixing with the aeration tank bottom, and the power transmission shaft upper end joins through axle sleeve and connecting axle and fixes with straight pin, and the rotating shaft dynamic seal is installed in said connecting axle upper end and fixes with aeration tank top; Connecting axle stretches out the back and is connected with transmission crank arm from aeration tank top, said transmission crank arm is connected the back and is connected with operating mechanism with shackle rod; Also comprise the static contact and insulation spare that is installed on the aeration tank inwall; The cutting blade bearing is installed on the said static contact and insulation spare, and first cutting blade, second cutting blade and driver plate are installed on the both sides and the centre of said cutting blade bearing respectively through the 3rd screw bolt and nut; Said first cutting blade and second cutting blade are connected with driver plate through second screw bolt and nut, and said first cutting blade and second cutting blade interconnect through first screw bolt and nut; Said first bolt is with first lining outward, and said second bolt is with second lining outward; Said first cutting blade and second cutting blade outside are equipped with spring pressuring plate and butterfly spring; Also comprise insulated tension pole, the two ends of said insulated tension pole are equipped with the binding of first pull bar and second pull bar links, and on the connecting lever that said first pull bar binding is installed in power transmission shaft is connected, said second pull bar links and is connected with driver plate; Also comprise fixed contact, said fixed contact is fixed on the main busbar; Also comprise the earth terminal fixed contact, said earth terminal fixed contact is fixed on the ground connection fixed contact and props up on the part.
Useful technique effect of the present invention is:
One, the present invention and aeration tank organically combine, and the electric product as receiving electricity combined floodgate, separating brake (isolation), ground connection (earth terminal combined floodgate) plays the function with three service positions.
Two, compare with existing isolating switch, realize on same power transmission shaft combined floodgate of the present invention, separating brake (isolation), three service positions of ground connection (earth terminal combined floodgate), easy to operate.
Three, the present invention adopts dynamic sealing technology to power transmission shaft, makes power transmission shaft keep when rotating that gas does not leak in the aeration tank.
Four, the conduction contact part of fixed contact and earth terminal fixed contact is designed to fillet, to eliminate the uneven situation of most advanced and sophisticated electric field.
Five, insulated tension pole adopts organic material, can guarantee electric insulation intensity, cracky not under the impact that receives external force.
Description of drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a vertical view of the present invention.
Fig. 3 is "on" position figure of the present invention.
Fig. 4 is gate-dividing state figure of the present invention.
Fig. 5 is ground state figure of the present invention.
Embodiment
Further specify below in conjunction with the accompanying drawing specific embodiments of the invention.
As shown in Figure 1, the present invention is installed in the aeration tank 32, comprises the power transmission shaft 4 that is vertically mounted in the aeration tank 32.Power transmission shaft 4 lower ends are equipped with bearing pedestal 23, and bearing pedestal 23 usefulness nuts are fixed on aeration tank 32 bottoms.Power transmission shaft 4 upper ends join with axle sleeve 6 and connecting axle 3, and with straight pin 7 fixed conveyor axles 4 and connecting axle 3.Rotating shaft dynamic seal 2 is assemblied in connecting axle 3 upper ends, and rotating shaft dynamic seal 2 usefulness nuts are fixed on aeration tank 32 tops.Bearing pedestal 23 and rotating shaft dynamic seal 2 make power transmission shaft 4 keep when rotating that gas does not leak in the aeration tank.Connecting axle 3 stretches out the back and is connected with transmission crank arm 1 and fixes with straight pin from aeration tank 32 tops, transmission crank arm 1 is connected back attended operation mechanism, the operation of realization operating mechanism with shackle rod 30.
As shown in Figure 1, static contact and insulation spare 29 (having three groups in the present embodiment) is installed on the inwall of aeration tank 32, and cutting blade bearing 24 is installed on the static contact and insulation spare 29 and uses bolt.First cutting blade 10, second cutting blade 18 and driver plate 13 usefulness the 3rd bolt 21 and nut are installed on the both sides and the centre of cutting blade bearing 24 respectively.First cutting blade 10 and second cutting blade 18 are connected with driver plate 13 with nut through second bolt 12, and first cutting blade 10 and second cutting blade 18 interconnect with nut 17 through first bolt 16.First bolt, 16 outer first lining, 5, the second bolts, 12 outer second linings 11 that are with that are with.Spring pressuring plate 9 is installed on first cutting blade 10 and second cutting blade, 18 outsides with butterfly spring 22, guarantees first cutting blade 10 and second cutting blade 18 contact pressure in working order.Wherein first cutting blade 10 and second cutting blade 18 are copper.
As shown in Figure 2, fixed contact 8 usefulness bolts 14 are fixed on the main busbar 15, and earth terminal fixed contact 27 usefulness bolts 14 ' are fixed on the ground connection fixed contact and prop up on the part 28.The conduction contact part of fixed contact 8 and earth terminal fixed contact 27 is designed to fillet, to eliminate the uneven situation of most advanced and sophisticated electric field.
As shown in Figure 2, insulated tension pole 26 is an organic material, can guarantee electric insulation intensity, cracky not under the impact that receives external force.The two ends of insulated tension pole 26 are equipped with first pull bar and link 20 and second pull bar and link 20 ', the first pull bar and link 20 and second pull bar binding 20 ' and be fixed on the insulated tension pole 26 with nut 25.The other end of first pull bar binding 20 is assemblied in straight pin 19 on the connecting lever 31 that is connected with power transmission shaft 4 (sees the isolating switch of first group of perspective among Fig. 1); The other end of second pull bar binding 20 is assemblied on the driver plate 13 with straight pin 19 '; Be combined into complete isolating switch, reach three station duties and leave the function of closing combined floodgate, isolation, ground connection.
The present invention is frameless phase with vertical installation; With bus at parallel position; Main electric conductor is copper knife-edge structure, and the present invention adopts manual-operating mechanism to operate transmission, and operating mechanism is provided with locking device in connection (Fig. 3), isolation (Fig. 4), three service positions of ground connection (Fig. 5); The present invention is positioned in each corresponding service position, reach the function of isolating switch connection, isolation, ground connection.
Above-described only is preferred implementation of the present invention, the invention is not restricted to above embodiment.Be appreciated that other improvement and variation that those skilled in the art directly derive or associate under the prerequisite that does not break away from basic design of the present invention, all should think to be included within protection scope of the present invention.
Claims (3)
1. tri-station isolating switch; It is characterized in that: comprise the power transmission shaft (4) that is vertically mounted in the aeration tank (32); Bearing pedestal (23) is installed in said power transmission shaft (4) lower end and fixing with aeration tank (32) bottom; Power transmission shaft (4) upper end joins through axle sleeve (6) and connecting axle (3) and is fixing with straight pin (7); Rotating shaft dynamic seal (2) is installed in said connecting axle (3) upper end and fixes with aeration tank (32) top, and connecting axle (3) stretches out the back and is connected with transmission crank arm (1) from aeration tank (32) top, and said transmission crank arm (1) is connected the back and is connected with operating mechanism with shackle rod (30);
Also comprise the static contact and insulation spare (29) that is installed on aeration tank (32) inwall; Cutting blade bearing (24) is installed on the said static contact and insulation spare (29), and first cutting blade (10), second cutting blade (18) and driver plate (13) are installed on the both sides and the centre of said cutting blade bearing (24) respectively through the 3rd bolt (21) and nut; Said first cutting blade (10) and second cutting blade (18) are connected with driver plate (13) with nut through second bolt (12), and said first cutting blade (10) and second cutting blade (18) interconnect through first bolt (16) and nut (17); Outer first lining (5) that is with of said first bolt (16), outer second lining (11) that is with of said second bolt (12); Said first cutting blade (10) and second cutting blade (18) outside are equipped with spring pressuring plate (9) and butterfly spring (22);
Also comprise insulated tension pole (26); The two ends of said insulated tension pole (26) are equipped with first pull bar and link (20) and second pull bar binding (20 '); Said first pull bar links (20) and is installed on the connecting lever (31) that is connected with power transmission shaft (4), and said second pull bar links (20) and is connected with driver plate (13);
Also comprise fixed contact (8), said fixed contact (8) is fixed on the main busbar (15); Also comprise earth terminal fixed contact (27), said earth terminal fixed contact (27) is fixed on the ground connection fixed contact and props up on the part (28).
2. according to the said tri-station isolating switch of claim 1, it is characterized in that: said first cutting blade (10) and second cutting blade (18) are for copper.
3. according to the said tri-station isolating switch of claim 1, it is characterized in that: said insulated tension pole (26) is an organic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110296686XA CN102360980B (en) | 2011-09-30 | 2011-09-30 | Three-working-position isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110296686XA CN102360980B (en) | 2011-09-30 | 2011-09-30 | Three-working-position isolation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102360980A true CN102360980A (en) | 2012-02-22 |
| CN102360980B CN102360980B (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110296686XA Active CN102360980B (en) | 2011-09-30 | 2011-09-30 | Three-working-position isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102360980B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810825A (en) * | 2012-07-31 | 2012-12-05 | 金杰实业集团有限公司 | Gas insulating ring-network cabinet using SF6 gas as insulating and arc-extinguishing medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008301586A (en) * | 2007-05-30 | 2008-12-11 | Japan Ae Power Systems Corp | Phase modifying equipment with switch for electric power systems |
| CN201270388Y (en) * | 2008-08-01 | 2009-07-08 | 丹阳信德电气设备有限公司 | 10kV SF6 full insulation full sealing compact loop network switch device |
| CN201527924U (en) * | 2009-09-15 | 2010-07-14 | 杨巍 | Power outdoor single-pole isolating switch |
| CN201656328U (en) * | 2010-04-26 | 2010-11-24 | 常州市申宏电力设备有限公司 | Dynamic sealing structure of air charging cabinet |
| CN202258972U (en) * | 2011-09-30 | 2012-05-30 | 无锡中科电气设备有限公司 | Three-post disconnecting switch |
-
2011
- 2011-09-30 CN CN201110296686XA patent/CN102360980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008301586A (en) * | 2007-05-30 | 2008-12-11 | Japan Ae Power Systems Corp | Phase modifying equipment with switch for electric power systems |
| CN201270388Y (en) * | 2008-08-01 | 2009-07-08 | 丹阳信德电气设备有限公司 | 10kV SF6 full insulation full sealing compact loop network switch device |
| CN201527924U (en) * | 2009-09-15 | 2010-07-14 | 杨巍 | Power outdoor single-pole isolating switch |
| CN201656328U (en) * | 2010-04-26 | 2010-11-24 | 常州市申宏电力设备有限公司 | Dynamic sealing structure of air charging cabinet |
| CN202258972U (en) * | 2011-09-30 | 2012-05-30 | 无锡中科电气设备有限公司 | Three-post disconnecting switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810825A (en) * | 2012-07-31 | 2012-12-05 | 金杰实业集团有限公司 | Gas insulating ring-network cabinet using SF6 gas as insulating and arc-extinguishing medium |
| CN102810825B (en) * | 2012-07-31 | 2014-07-23 | 金杰实业集团有限公司 | Gas insulating ring-network cabinet using SF6 gas as insulating and arc-extinguishing medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102360980B (en) | 2013-12-04 |
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