CN102737906A - Novel insulating pull rod of circuit breaker - Google Patents
Novel insulating pull rod of circuit breaker Download PDFInfo
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- CN102737906A CN102737906A CN2012102305518A CN201210230551A CN102737906A CN 102737906 A CN102737906 A CN 102737906A CN 2012102305518 A CN2012102305518 A CN 2012102305518A CN 201210230551 A CN201210230551 A CN 201210230551A CN 102737906 A CN102737906 A CN 102737906A
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- insulated tension
- tension pole
- hole
- circuit breaker
- pull rod
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Abstract
The invention provides a novel insulating pull rod of a circuit breaker. The novel insulating pull rod comprises an insulating pull rod body, wherein the insulating pull rod body is made of POM (Polyoxymethylene) glass-reinforced plastics material, so the insulating pull rod body is lighter and has high strength and high insulating performance. Compared with axle steel, the weight of the novel insulating pull rod is reduced by over 70%; a thread part at one end of a copper sleeve is thermally shrunk and sleeved with an insulating sleeve, and then screwed with a screwed hole of the insulating pull rod body, and finally fixedly connected through screw fastening glue by means of gluing, therefore, the insulating sleeve can be completely placed and sealed in the screw hole so as to improve the insulating performance; a disc spring is sleeved into a guide blind hole at one end of the copper sleeve and is propped and pressed through a pressing shaft by means of passing through; the pressing shaft is limited into the copper sleeve to move through a plug. According to the novel insulating pull rod, the disc spring is internally arranged in the copper sleeve, therefore, the novel insulating pull has a nicer and simpler appearance; the plug can be opened through a simple tool; and the quantity of the disc spring can be increased or reduced to conveniently adjust the contact pressure value of the pressing shaft and a moving contact.
Description
Technical field
The present invention relates to railway one pole vacuum circuit-breaker control and use pull bar, particularly in light weight, insulation property are good, the novel insulated tension pole of contact pressure a kind of easily circuit breaker of adjusting.
Background technology
Railway one pole vacuum circuit-breaker uses in the China railways electrical system in a large number, and domestic a lot of producers all are directed against the one pole vacuum circuit-breaker of using in the railway system in research and development; The insulated tension pole intensity of one pole vacuum circuit-breaker is lower at present, and manufacturability is relatively poor, and the surface creepage distance is less relatively; Excess of stroke spring all is the compression spring, and vacuum bubbles is worth the contact requirement energetically, makes that the size of compression stress spring is big; And need replace the new spring of the different coefficients of stiffiness during regulating spring power; Therefore cause the wasting of resources, exposed outer being assembled on the insulated tension pole of spring adds insulating sleeve simultaneously; Be subject to such environmental effects and accelerate to wear out, cause appearance poor, mechanical performance also instability and useful life long problem.Xiamen Minghan Electric Co., Ltd. organizes R&D team's research comparative analysis both at home and abroad about the quality of this series products, selects to hang scheme most to solve the existing problem of above-mentioned one pole vacuum circuit-breaker insulated tension pole.
Summary of the invention
For solving the problem that above-mentioned one pole vacuum circuit-breaker insulated tension pole exists, that the present invention is intended to propose is easy to make, the power value is regulated is convenient, machinery and electric property is reliable, stable, the novel insulated tension pole of a kind of circuit breaker of long service life.
For reaching above-mentioned purpose; This has the novel insulated tension pole of a kind of circuit breaker of proposition; The novel insulated tension pole of a kind of circuit breaker comprises an insulated tension pole body, it is characterized in that: the insulated tension pole body that adopts POM plastic-steel material to make; The one of which end radially is provided with a pin-and-hole, and bearing pin that can be connected with the switch cubicle mechanism case and pin-and-hole are pegged graft; Be drilled with a screwed hole on its other end is axial; One copper sheathing, one end is provided with the threaded portion with the screwed hole screw fit; One insulating case thermal shrinkable sleeve is connected on the threaded portion; The copper sheathing other end is axially arranged with a guiding blind hole; One last item is with some dish springs and inserts in the guiding blind holes, and last item is provided with and the blind hole that leads is slidingly matched and with a side of the spacing bulge loop in the guiding blind hole of dish spring, the plug that bulge loop opposite side sheathed one and last item are nested and are slidingly matched; Plug is threaded with guiding blind hole peristome and cooperates, the spacing compact disc spring motion in the guiding blind hole of last item; Screw with the screwed hole on the insulated tension pole body and be connected in the threaded portion that the copper sheathing thermal shrinkable sleeve is connected to insulating case.
Evenly smear screw thread fastening glue on the insulating case that is socketed with in the copper sheathing threaded portion; Screwed hole on copper sheathing threaded portion and the insulated tension pole body is screwed; Fixing through the connection of screw threads for fastening glue glued adhesion, make insulating case built-in being sealed in the screwed hole fully, both increased insulating properties; Can avoid insulating case to be exposed to again and accelerate aging speed in the air, prolong useful life of the present invention greatly.
But described copper sheathing threaded portion end face is the sphere of a uniform electric field; Screwed hole on copper sheathing threaded portion end face and the insulated tension pole body is fitted fully; Avoiding both contact-making surface to produce floating potential causes surface discharge corrosion screwed hole and copper sheathing threaded portion and changes shape and size; Make the copper sheathing threaded portion through screwed hole to the active force of edge pull bar body on same axis, make its machine driving stable work in work, reliable.
The end diametric plane that said last item exposes plug is provided with two planes; With bayonet fittings face as the rotation last item of specific purpose tool.
The bulge loop that is slidingly matched with the guiding blind hole on the said last item directly upwards is provided with at least two square breach; Make bulge loop on the last item in the guiding blind hole during compact disc spring or during the resilience of dish spring, the guiding blind hole is through breach and atmosphere, and the sensitivity of avoiding last item in the guiding blind hole, to move reduces; The dish spring is built in the guiding blind hole and does not expose, and make this practical new and ingenious outward appearance more succinctly attractive in appearance, and it is extremely low influenced by external environmental factor, and aging speed is slow, long service life; The dish spring is built in insulated tension pole inside simultaneously, can produce the contact pressure of desirable just-off speed and assurance contact, and is convenient through increase and decrease dish spring quantity regulating power value.
Be provided with a unthreaded hole in the middle of the described plug, this unthreaded hole and last item are nested and are slidingly matched.
At least be provided with two air vent holes that communicate with the guiding blind hole on the described plug, make the guiding blind hole identical with ambient pressure through air vent hole and breach, the sensitivity of avoiding last item in the guiding blind hole, to move reduces.
Described insulated tension pole body surface is provided with 16 ring umbrella skirt constructions at least, and its external insulation surface creepage distance is more than 900 millimeters, and insulated tension pole body industrial frequency withstand voltage reaches more than the 100KV.
The invention has the beneficial effects as follows: the insulated tension pole body that adopts POM plastic-steel material to make makes that it is lighter, intensity is big, insulating properties is high, and weight of the present invention is compared with the axle steel and alleviated more than 70%; Screwed hole with the insulated tension pole body behind copper sheathing threaded one end portion thermal shrinkable sleeve one insulating case spins; Connect admittedly with line fastening glue gummed again, make insulating case built-in being sealed in the screwed hole fully, to strengthen its insulation property; And the guiding blind hole of copper sheathing one end is inserted in the dish spring; Last item passes and roof pressure dish spring, in copper sheathing, moves the last item part is spacing through plug, and the dish spring is built in and makes outward appearance of the present invention more attractive in appearance succinct in the copper sheathing; Open plug through light instrument, the contact pressure value that the quantity of increase and decrease dish spring then can be regulated last item and moving contact easily.
Description of drawings
Fig. 1 is a three-dimensional package assembly decomposing schematic representation of the present invention.
Among the figure:
10. the insulated tension pole body; 11. pin-and-hole; 12. screwed hole; 13. full skirt;
20. copper sheathing; 21. threaded portion; 211. sphere; 22. guiding blind hole; 221. peristome;
30. insulating case;
40. the dish spring;
50. last item; 51. bulge loop; 511. breach; 52. plane;
60. plug; 61. unthreaded hole; 62. air vent hole;
70. bearing pin;
80. screw thread fastening glue.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As
Fig. 1The shown novel insulated tension pole of a kind of circuit breaker comprises that one adopts POM plastic-steel material to make
Insulated tension pole body 10, insulated tension pole body 10 1 ends radially are provided with the bearing pin 70 and pin-and-hole 11 grafting that a pin-and-hole 11, can be connected with the switch cubicle mechanism case; Be drilled with a screwed hole 12 on the other end of insulated tension pole body 10 is axial; Insulated tension pole body 10 surfaces are provided with 16 ring full skirts, 13 structures at least; Full skirt 13 structures make the external insulation surface creepage distance of insulated tension pole body 10 more than 900 millimeters, and insulated tension pole body industrial frequency withstand voltage reaches more than the 100KV; One
Copper sheathing 20One end is provided with the threaded portion 21 with insulated tension pole body 10 upper screwed holes 12 screw fit; But copper sheathing 20 threaded portions 21 end faces are the sphere 211 of a uniform electric field; Copper sheathing 20 other ends are axially arranged with a guiding blind hole 22, and the peristome 221 of guiding blind hole 22 is the inner thread mouth of a hole enlargement; One
Last item 50Be with some big rigidity
Dish spring 40Insert in the guiding blind hole 22; Last item 50 is provided with and the blind hole 22 that leads is slidingly matched and with a side of the spacing bulge loops 51 in guiding blind hole 22 of dish spring 40; Upwards be provided with two square breach 511 with the bulge loop that is slidingly matched of guiding blind hole 22 51 footpaths on the last item 50, bulge loop 51 opposite sides sheathed one and last item 50 are nested and are slidingly matched
Plug 60Be provided with a unthreaded hole 61 in the middle of the plug 60; This unthreaded hole 61 is nested with last item 50 and is slidingly matched; Plug 60 is threaded with the peristome 221 of guiding blind hole 22 and cooperates; Spacing compact disc spring 40 motions in guiding blind hole 22 of last item 50, dish spring 40 is placed in the guiding blind hole 22 of copper sheathing 20, and dish spring 40 is built in the contact pressure that the more convenient quick and dish spring 40 of the pressure of insulated tension pole body 10 inside, the quantity regulating last item 50 through increase and decrease dish spring 40 can produce desirable just-off speed and assurance last item 50 and contact; To satisfy in the Railway Electric the big requirement of contact pressure that is in operation of the vacuum bubbles of circuit breaker; Plug 60 is provided with two air vent holes 62 that communicate with guiding blind hole 22, makes breach 511 and the 62 connection guiding blind holes 22 of the air vent hole on the plug 60 on the bulge loop 51, and the air pressure of avoiding last item 50 in guiding blind hole 22, to produce in the motion is passed through the movement velocity of bulge loop 51 sluggish last items 50; Influence the sensitivity of last item 50 motion in guiding blind hole 22, the end diametric plane that last item 50 exposes plug 60 is provided with two planes 52; One
Insulating case 30Thermal shrinkable sleeve is connected on copper sheathing 20 threaded portions 21, on insulating case 30, evenly smears
Screw thread fastening glue 80Screw with the screwed hole 12 on the insulated tension pole body 10 in copper sheathing 20 threaded portions 21; Screwed hole 12 on copper sheathing 20 threaded portions, 21 end faces and the insulated tension pole body 10 is fitted fully; Fixing through screw thread fastening glue 80 gummed connections, insulating case 30 is built in the screwed hole 12 on the insulated tension pole body 10 fully, accomplishes assembling of the present invention and connects.
The pin-and-hole 11 of insulated tension pole body 10 1 ends of the present invention is connected with switch cubicle mechanism case (not drawing among the figure)
Bearing pin 70It is fixing to peg graft, and last item one end that exposes plug 60 unthreaded holes 61 links to each other with the connecting lever (not drawing among the figure) of vacuum circuit-breaker moving contact side.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention, those skilled in the art are under the situation that does not break away from the spirit and scope of the present invention; Can also make various conversion or variation; Therefore, all technical schemes that are equal to also should belong to category of the present invention, are limited each claim.
Claims (8)
1. the novel insulated tension pole of circuit breaker comprises an insulated tension pole body, it is characterized in that:
The insulated tension pole body that adopts POM plastic-steel material to make, the one of which end radially is provided with a pin-and-hole, the bearing pin and pin-and-hole grafting that can be connected with the switch cubicle mechanism case; Be drilled with a screwed hole on its other end is axial;
One copper sheathing, one end is provided with the threaded portion with the screwed hole screw fit; One insulating case thermal shrinkable sleeve is connected on the threaded portion; The copper sheathing other end is axially arranged with a guiding blind hole; One last item is with some dish springs and inserts in the guiding blind holes, and last item is provided with and the blind hole that leads is slidingly matched and with a side of the spacing bulge loop in the guiding blind hole of dish spring, the plug that bulge loop opposite side sheathed one and last item are nested and are slidingly matched; Plug is threaded with guiding blind hole peristome and cooperates, the spacing compact disc spring motion in the guiding blind hole of last item;
Screw with the screwed hole on the insulated tension pole body and be connected in the threaded portion that the copper sheathing thermal shrinkable sleeve is connected to insulating case.
2. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1; It is characterized in that: evenly smear screw thread fastening glue on the insulating case that is socketed with in the copper sheathing threaded portion; Screwed hole on copper sheathing threaded portion and the insulated tension pole body is screwed, and connects fixing through the screw threads for fastening glue glued adhesion.
3. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1 is characterized in that: but described copper sheathing threaded portion end face is the sphere of a uniform electric field.
4. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1 is characterized in that: the end diametric plane that said last item exposes plug is provided with two planes.
5. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1 is characterized in that: the bulge loop that is slidingly matched with the guiding blind hole on the said last item directly upwards is provided with at least two square breach.
6. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1 is characterized in that: be provided with a unthreaded hole in the middle of the described plug, this unthreaded hole and last item are nested and are slidingly matched.
7. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1 is characterized in that: be provided with two air vent holes that communicate with the guiding blind hole on the described plug at least.
8. the novel insulated tension pole of a kind of circuit breaker as claimed in claim 1; It is characterized in that: described insulated tension pole body surface is provided with 16 ring umbrella skirt constructions at least; Its external insulation surface creepage distance is more than 900 millimeters, and insulated tension pole body industrial frequency withstand voltage reaches more than the 100KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102305518A CN102737906A (en) | 2012-07-05 | 2012-07-05 | Novel insulating pull rod of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102305518A CN102737906A (en) | 2012-07-05 | 2012-07-05 | Novel insulating pull rod of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102737906A true CN102737906A (en) | 2012-10-17 |
Family
ID=46993199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102305518A Pending CN102737906A (en) | 2012-07-05 | 2012-07-05 | Novel insulating pull rod of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102737906A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295833A (en) * | 2013-05-24 | 2013-09-11 | 沈阳华德海泰电器有限公司 | Switch-on-off transmission rod for high-voltage vacuum switch device |
| CN106548881A (en) * | 2016-10-28 | 2017-03-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of insulated tension pole structure |
| CN108648968A (en) * | 2018-07-27 | 2018-10-12 | 四川电器集团股份有限公司 | With the insulating pull rod for breaker and creep distance increasing method for increasing creep distance function |
| CN108717915A (en) * | 2018-07-27 | 2018-10-30 | 四川电器集团股份有限公司 | It is a kind of that there is the high-voltage circuitbreaker system for being applicable in altitude environment performance |
| CN108767726A (en) * | 2018-07-27 | 2018-11-06 | 四川电器集团股份有限公司 | A kind of 40.5kV switch apparatus systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006015308A1 (en) * | 2006-03-29 | 2007-10-11 | Siemens Ag | Insulating shift rod |
| CN101599388A (en) * | 2009-07-13 | 2009-12-09 | 浙江雷博司电器有限公司 | A kind of insulating pull rod for breaker |
| CN201369288Y (en) * | 2009-01-13 | 2009-12-23 | 施耐德电器工业公司 | Insulating pull rod and vacuum breaker with same |
| CN202650973U (en) * | 2012-07-05 | 2013-01-02 | 厦门明翰电气股份有限公司 | Novel insulating pull rod for breaker |
-
2012
- 2012-07-05 CN CN2012102305518A patent/CN102737906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006015308A1 (en) * | 2006-03-29 | 2007-10-11 | Siemens Ag | Insulating shift rod |
| CN201369288Y (en) * | 2009-01-13 | 2009-12-23 | 施耐德电器工业公司 | Insulating pull rod and vacuum breaker with same |
| CN101599388A (en) * | 2009-07-13 | 2009-12-09 | 浙江雷博司电器有限公司 | A kind of insulating pull rod for breaker |
| CN202650973U (en) * | 2012-07-05 | 2013-01-02 | 厦门明翰电气股份有限公司 | Novel insulating pull rod for breaker |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295833A (en) * | 2013-05-24 | 2013-09-11 | 沈阳华德海泰电器有限公司 | Switch-on-off transmission rod for high-voltage vacuum switch device |
| CN106548881A (en) * | 2016-10-28 | 2017-03-29 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of insulated tension pole structure |
| CN108648968A (en) * | 2018-07-27 | 2018-10-12 | 四川电器集团股份有限公司 | With the insulating pull rod for breaker and creep distance increasing method for increasing creep distance function |
| CN108717915A (en) * | 2018-07-27 | 2018-10-30 | 四川电器集团股份有限公司 | It is a kind of that there is the high-voltage circuitbreaker system for being applicable in altitude environment performance |
| CN108767726A (en) * | 2018-07-27 | 2018-11-06 | 四川电器集团股份有限公司 | A kind of 40.5kV switch apparatus systems |
| CN108648968B (en) * | 2018-07-27 | 2023-05-23 | 四川电器集团股份有限公司 | Circuit breaker insulation pull rod with function of increasing creepage distance and creepage distance increasing method |
| CN108717915B (en) * | 2018-07-27 | 2023-05-23 | 四川电器集团股份有限公司 | High-voltage circuit breaker system with suitable plateau environment performance |
| CN108767726B (en) * | 2018-07-27 | 2023-05-23 | 四川电器集团股份有限公司 | 40.5kV switchgear system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |