CN106024435B - A kind of off circuit tap changer convenient for transferring the files - Google Patents
A kind of off circuit tap changer convenient for transferring the files Download PDFInfo
- Publication number
- CN106024435B CN106024435B CN201610556289.4A CN201610556289A CN106024435B CN 106024435 B CN106024435 B CN 106024435B CN 201610556289 A CN201610556289 A CN 201610556289A CN 106024435 B CN106024435 B CN 106024435B
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- China
- Prior art keywords
- contact
- supporter
- static contact
- static
- transferring
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Links
- 230000003068 static effect Effects 0.000 claims abstract description 52
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 230000005284 excitation Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/56—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The present invention proposes a kind of off circuit tap changer convenient for transferring the files, including static contact support and the main shaft for being threaded onto static contact support, the top attended operation mechanism of main shaft, lower part connects elastic moving contact, corresponding elasticity moving contact is circumferentially with static contact on static contact support, elastic moving contact correspondence is connected across between two adjacent static contacts and is in close contact, elastic moving contact includes annular dynamic contact and supporter, supporter is connected with main shaft, annular dynamic contact is set in supporter, the inner peripheral surface and supporter phase configuration of annular dynamic contact, outer peripheral surface and static contact phase configuration.Contact stabilization of the present invention, high reliablity, gear shift are light.
Description
Technical field
The invention belongs to the technical field of tap switch more particularly to a kind of off circuit tap changers convenient for transferring the files.
Background technique
Existing off circuit tap changer contact includes fixed contact and the moving contact that is connected across between two adjacent fixed contacts, fixed to touch
Head mostly uses cylindric fixed contact, and moving contact relatively mostly uses annular dynamic contact, annular dynamic contact under spring force with determine touching
Head reliable contacts.Annular dynamic contact overcomes the pressure of spring along column under the moment loading of main shaft and supporter when converting gear
Shape stationary contact head surface is run from side to the other side of fixed contact, completes shift process.The annular dynamic contact has structure simple,
The features such as operating handle is strong, registration.But the size cantilever of the radial bullet pin front end of the structure of contact terminal is excessive, rear end and branch
The bearing of gripping member cooperation is undersized, and the ratio of the cooperation section and cantilever segment that lead to radial bullet pin is too small, and operational torque is excessive, holds
Cause to switch the case where torque increases or even turns motionless (not self shrinking) when easily causing annular dynamic contact stroke excessive.Especially big electricity
It flows and the switch of multiphase combination is more difficult to realize when dielectric level is higher between static contact, limit the application of the structure of contact terminal
System.
Summary of the invention
It is opened the technical problem to be solved by the invention is to solve the above problems providing a kind of no excitation tap
It closes, effectively reduces the rotating torque operated when moving contact shift, lightly complete the tap conversion of switch.
The technical proposal adopted by the invention to solve the above technical problems is that: it is a kind of to be opened convenient for what is transferred the files without excitation tap
It closes, including static contact support and the main shaft for being threaded onto static contact support, the top attended operation mechanism of the main shaft, lower part connection
Moving contact component, static contact support are provided at circumferentially spaced static contact, moving contact component is corresponding be connected across two adjacent static contacts it
Between and be in close contact, the moving contact component includes cyclic spring moving contact and supporter, and the supporter is connected with main shaft, institute
State cyclic spring moving contact and be set in supporter, the inner peripheral surface and supporter phase configuration of cyclic spring moving contact, outer peripheral surface with it is quiet
Contact phase configuration, which is characterized in that the cyclic spring moving contact includes the annular dynamic contact being set on supporter, in ring
It is installed on radial bullet pin between shape moving contact and supporter, is opened up on the supporting section and supporter of the radial bullet pin rear end
Sliding pin hole phase configuration, the free segment end of radial bullet pin front end and the inner peripheral surface phase configuration of annular dynamic contact, the supporting section with
The length ratio of the free segment is greater than or equal to 1 at shelves (non-shift).
According to the above scheme, the radial bullet pin includes sliding pin and spring, and the middle leading portion outer wall of sliding pin is circumferentially arranged with
One stage portion, the both ends of the spring offset with the first step portion and the supporter outboard end respectively；Radial bullet pin front end
Free segment end install the inner peripheral surface phase configuration of idler wheel and annular dynamic contact.
According to the above scheme, the sliding pin hole is externally provided with flange and supporter outboard end forms second step portion, the spring
Its outer both ends of flange are set in offset with the first step portion and second step portion respectively.
According to the above scheme, the supporter outboard end is equipped with the ring spring bore concentric with sliding pin hole, the spring two
End offsets with the first step portion and the spring base hole bottom respectively.
According to the above scheme, the front end two sides that the supporter corresponds to annular dynamic contact inner peripheral surface are equipped with wing group of evagination
Block, the wing shifting block and annular dynamic contact inner peripheral surface phase configuration, and the wire length of the two sides external contact of wing shifting block is less than
The internal diameter of annular dynamic contact is the 9/10~6/10 of annular dynamic contact internal diameter.
According to the above scheme, the static contact support is the dish type support of setting symmetrical above and below, static contact upper and lower ends and institute
Dish type support is stated to be connected.
According to the above scheme, the static contact support is insulating cylinder, and static contact is circumferentially fixed on the inner wall of the insulating cylinder
On.
According to the above scheme, the static contact is column static contact.
According to the above scheme, single-phase switch structure, moving contact and static contact are constituted when the moving contact and static contact are one group
When being two groups or three groups constitute multiphase construction of switch, the multiphase construction of switch include axially be spaced apart along the main shaft it is more
Group moving contact further includes the multiple groups static contact being axially distributed along the insulating cylinder, and multiple groups moving contact is staggeredly installed up and down, and mutually
Insulation.
According to the above scheme, the ratio of the supporting section and the free segment is 1.2~2.0.
The beneficial effects of the present invention are: a kind of off circuit tap changer convenient for transferring the files is provided, by setting on supporter
Second step portion and spring base hole are set, the jib-length of radial bullet pin is reduced, increases supporting section and the support of radial bullet pin rear end
The length of fit in the sliding pin hole opened up on part increases the length ratio of supporting section and free end, and then when reduction moving contact shift
The rotating torque of operation avoids occurring to cause when annular dynamic contact stroke is excessive to switch torque and increase even to turn motionless (not self shrinking)
The case where, lightly complete the tap conversion of switch.The wing setting set ahead can be such that said effect is further strengthened.In this way
It is not only convenient for gear shift operation, the reliability of switch tap conversion is improved, enhances the contact performance of contact, and decrease
The abrasion of dynamic/static contact extends the service life of switch.
Detailed description of the invention
Fig. 1 is the cross-sectional view of first embodiment of the invention.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the cross-sectional view of second embodiment of the invention.
Fig. 4 is the cross-sectional view of third embodiment of the invention.
Fig. 5 is the B-B view of Fig. 4.
Wherein: 1. dish type supports, 2. main shafts, 3. operating mechanisms, 4. column static contacts, 5. annular dynamic contacts, 6. idler wheels, 7.
First step portion, 8. sliding pins, 9. wing shifting blocks, 10. springs, 11. insulating cylinders, 12. supporters, 13. second step portions, 14. bullets
Spring abutment hole.
Specific embodiment
For a better understanding of the invention, the invention will be further described with reference to the accompanying drawings and examples.
One embodiment of the present of invention is as shown in Figs. 1-2, be one single-phase five grades without excitation magnet drum-shape switch, including stationary contact
Head support and be threaded onto the main shaft 2 of static contact support, static contact support is the dish type support 1 of setting symmetrical above and below, main shaft it is upper
Attended operation mechanism, portion 3, lower part connect moving contact component, and static contact support is provided at circumferentially spaced static contact, and static contact is column
Shape static contact 4, moving contact component correspondence are connected across between two adjacent static contacts and are in close contact, and moving contact component includes annular elastomeric
Property moving contact and supporter 12, supporter are connected with main shaft, and cyclic spring moving contact is set in supporter, cyclic spring moving contact
Inner peripheral surface and supporter phase configuration, outer peripheral surface and static contact phase configuration.
Cyclic spring moving contact includes the annular dynamic contact 5 being set on supporter, annular dynamic contact and supporter it
Between be installed on radial bullet pin, the sliding pin hole phase configuration opened up on the supporting section and supporter of radial bullet pin rear end, before radial bullet pin
For the free segment at end by the inner peripheral surface phase configuration of idler wheel 6 and annular dynamic contact, the ratio of supporting section and free segment is 1.2~2.0.
Radial bullet pin includes sliding pin 8 and spring 10, and the middle leading portion outer wall of sliding pin is circumferentially arranged with first step portion 7, spring
Both ends offset with first step portion and supporter outboard end respectively.
Sliding pin hole is externally provided with flange and supporter outboard end and forms second step portion 13, both ends of the spring respectively with first step
Portion and second step portion offset.
Supporter outboard end be equipped with the spring eye 14 concentric with sliding pin hole, both ends of the spring respectively with first step portion and spring
Hole bottom offsets (see Fig. 3).
Supporter correspond to annular dynamic contact inner peripheral surface front end two sides be equipped with evagination wing shifting block 9, wing shifting block with
Annular dynamic contact inner peripheral surface phase configuration, and the wire length of the two sides external contact of wing shifting block is less than the internal diameter of annular dynamic contact,
It is the 9/10~6/10 of annular dynamic contact internal diameter, by the way that the wing shifting block of evagination is arranged in supporter two sides, when switching gear shift
Annular dynamic contact is formed torque by outer static contact and the collective effect of wing shifting block inside, pushes annular dynamic contact to pre-
Fixed side direction rotation, due to the change of impetus, such boosting will effectively reduce the rotating torque operated when contact is shifted gears,
When switching current is larger, chord length increase makes moving contact go deep into stationary contact when dielectric level is high between the quantity of moving contact is more or static contact
When excessive between head, the light effect of switch gear-change operation torque is especially apparent.
One embodiment of the present of invention is five grades of a three-phase ganged without excitation magnet drum-shape switch, stationary contact as illustrated in figures 4-5
Head support is insulating cylinder 11, and static contact is circumferentially fixed on the inner wall of insulating cylinder, and column static contact is circumferential along insulating cylinder inner wall
Six, and axially spaced three groups of laying are installed in interval, constitute five grades of three-phase；Dynamic touching corresponding to column static contact, on main shaft
Head is also installed on three groups, and three groups of moving contacts are staggeredly installed up and down, and mutually insulated, and every group of moving contact corresponds to a phase static contact,
Every phase moving contact is made of 2~3 annular dynamic contacts arranged side by side.Other structures are identical as upper one embodiment.
When main shaft is under the action of operating mechanism, moving contact is rotated synchronously, and realizes synchronous voltage regulation function, exhausted when embodiment
When edge body is the form of cage type or tubular that insulating bar or insulating cylinder form, that is, constitute cage type or tubular off circuit tap changer.
The tap switch of structure of the invention can be installed vertically, and horizontal can also install, and structure is simple, easy to operate, contact stablize, can
It leans on.
Claims (7)
1. a kind of off circuit tap changer convenient for transferring the files, including static contact support and the main shaft for being threaded onto static contact support, institute
The top attended operation mechanism of main shaft is stated, lower part connects moving contact component, and static contact support is provided at circumferentially spaced static contact, moves
Contact assembly correspondence is connected across between two adjacent static contacts and is in close contact, and the moving contact component includes cyclic spring moving contact
And supporter, the supporter are connected with main shaft, the cyclic spring moving contact is set in supporter, cyclic spring moving contact
Inner peripheral surface and supporter phase configuration, outer peripheral surface and static contact phase configuration, which is characterized in that the cyclic spring moving contact includes
The annular dynamic contact being set on supporter is installed on radial bullet pin, the radial direction between annular dynamic contact and supporter
The sliding pin hole phase configuration opened up on the supporting section and supporter of bullet pin rear end, the free segment end of radial bullet pin front end and annular are dynamic
The length ratio of the inner peripheral surface phase configuration of contact, the supporting section and the free segment is greater than or equal to 1, and radial bullet pin includes sliding pin
And spring, for the middle leading portion outer wall of sliding pin circumferentially arranged with first step portion, idler wheel is installed in the free segment end of radial bullet pin front end
With the inner peripheral surface phase configuration of annular dynamic contact, supporter outboard end and sliding pin hole peripheral hardware flange form second step portion or supporter
Outboard end is equipped with the ring spring bore concentric with sliding pin hole, and the spring pocket is loaded on its outer both ends of flange respectively with described first
Stage portion and second step portion offset or both ends of the spring offsets with the first step portion and the spring base hole bottom respectively.
2. a kind of off circuit tap changer convenient for transferring the files according to claim 1, which is characterized in that the supporter pair
The wing shifting block of evagination, the wing shifting block and annular dynamic contact inner circumferential should be equipped in the front end two sides of annular dynamic contact inner peripheral surface
Face phase configuration, and the wire length of the two sides external contact of wing shifting block is less than the internal diameter of annular dynamic contact, is in annular dynamic contact
The 9/10~6/10 of diameter.
3. a kind of off circuit tap changer convenient for transferring the files according to claim 2, which is characterized in that the static contact branch
Seat is the dish type support of setting symmetrical above and below, and static contact upper and lower ends are connected with the dish type support.
4. a kind of off circuit tap changer convenient for transferring the files according to claim 2, which is characterized in that the static contact branch
Seat is insulating cylinder, and static contact is circumferentially fixed on the inner wall of the insulating cylinder.
5. a kind of off circuit tap changer convenient for transferring the files according to claim 3 or 4, which is characterized in that the stationary contact
Head is column static contact.
6. a kind of off circuit tap changer convenient for transferring the files according to claim 3 or 4, which is characterized in that the dynamic touching
Head and static contact constitute single-phase switch structure when being one group, composition multiphase switch is tied when moving contact and static contact are two groups or three groups
Structure, the multiphase construction of switch include the multiple groups moving contact being axially spaced apart along the main shaft, further include along the static contact
The multiple groups static contact that support is axially distributed, multiple groups moving contact is staggeredly installed up and down, and mutually insulated.
7. a kind of off circuit tap changer convenient for transferring the files according to claim 1, which is characterized in that the supporting section with
The ratio of the free segment is 1.2~2.0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556289.4A CN106024435B (en) | 2016-07-14 | 2016-07-14 | A kind of off circuit tap changer convenient for transferring the files |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610556289.4A CN106024435B (en) | 2016-07-14 | 2016-07-14 | A kind of off circuit tap changer convenient for transferring the files |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106024435A CN106024435A (en) | 2016-10-12 |
| CN106024435B true CN106024435B (en) | 2019-07-23 |
Family
ID=57119048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610556289.4A Active CN106024435B (en) | 2016-07-14 | 2016-07-14 | A kind of off circuit tap changer convenient for transferring the files |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106024435B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146396A2 (en) * | 1983-12-15 | 1985-06-26 | Mitsubishi Denki Kabushiki Kaisha | Change-over switch for an on-load tap changer |
| JPS60236204A (en) * | 1984-04-30 | 1985-11-25 | マシーネンフアブリーク、ラインハウゼン、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング | On-load tap selector of regulating transformer |
| CN201000835Y (en) * | 2007-01-16 | 2008-01-02 | 上海华明电力设备制造有限公司 | Contact structure of excitation-free tap switch |
| CN101364483A (en) * | 2008-09-25 | 2009-02-11 | 武汉泰普变压器开关有限公司 | Contact tip construction of non-excited tapping switch |
| CN101477885A (en) * | 2008-09-25 | 2009-07-08 | 武汉泰普变压器开关有限公司 | Non-exciting shunting switch convenient for shifting |
| CN206098177U (en) * | 2016-07-14 | 2017-04-12 | 武汉泰普变压器开关有限公司 | Off circuit tap changer convenient to transfer files |
-
2016
- 2016-07-14 CN CN201610556289.4A patent/CN106024435B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0146396A2 (en) * | 1983-12-15 | 1985-06-26 | Mitsubishi Denki Kabushiki Kaisha | Change-over switch for an on-load tap changer |
| JPS60236204A (en) * | 1984-04-30 | 1985-11-25 | マシーネンフアブリーク、ラインハウゼン、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング | On-load tap selector of regulating transformer |
| CN201000835Y (en) * | 2007-01-16 | 2008-01-02 | 上海华明电力设备制造有限公司 | Contact structure of excitation-free tap switch |
| CN101364483A (en) * | 2008-09-25 | 2009-02-11 | 武汉泰普变压器开关有限公司 | Contact tip construction of non-excited tapping switch |
| CN101477885A (en) * | 2008-09-25 | 2009-07-08 | 武汉泰普变压器开关有限公司 | Non-exciting shunting switch convenient for shifting |
| CN206098177U (en) * | 2016-07-14 | 2017-04-12 | 武汉泰普变压器开关有限公司 | Off circuit tap changer convenient to transfer files |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106024435A (en) | 2016-10-12 |
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