CN106024435A - Off-circuit tap-changer facilitating gear shifting - Google Patents
Off-circuit tap-changer facilitating gear shifting Download PDFInfo
- Publication number
- CN106024435A CN106024435A CN201610556289.4A CN201610556289A CN106024435A CN 106024435 A CN106024435 A CN 106024435A CN 201610556289 A CN201610556289 A CN 201610556289A CN 106024435 A CN106024435 A CN 106024435A
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- CN
- China
- Prior art keywords
- contact
- supporter
- static contact
- static
- files
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Classifications
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- 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
- Mechanical Operated Clutches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention provides an off-circuit tap-changer facilitating gear shifting, which comprises a static contact support and a spindle arranged in the static contact support in a penetrating mode, wherein the upper part of the spindle is connected with an operating mechanism, and the lower part is connected with an elastic moving contact; static contacts, corresponding to the elastic moving contact, are circumferentially arranged on the static contact support; the elastic moving contact is correspondingly in bridge connection onto two adjacent static contacts and are tightly contacted; the elastic moving contact comprises a ring moving contact and a supporting piece; the supporting piece is connected with the spindle; the ring moving contact sleeves the supporting piece; the inner circumferential surface of the ring moving contact and the supporting piece are configured and matched; and the outer circumferential surface and the static contact are configured and matched. The off-circuit tap-changer facilitating gear shifting has the advantages of stable contact of the contacts, high reliability and convenient gear shifting.
Description
Technical field
The invention belongs to the technical field of shunting switch, particularly relate to a kind of off circuit tap changer be easy to and transfer the files.
Background technology
Existing off circuit tap changer contact includes determining contact and being connected across the two adjacent moving contacts determined between contact, determines contact and adopts more
Determine contact with cylindric, moving contact more employing annular dynamic contact, annular dynamic contact under spring force with determine contact and can be abutted against
Touch.During conversion gear, annular dynamic contact is under the moment loading of main shaft and supporter, overcomes the pressure of spring along column static contact table
Face is run to the opposite side determining contact from side, completes shift process.This annular dynamic contact has simple in construction, and operating handle is strong,
The features such as registration.But the size cantilever of the radial direction bullet pin front end of this structure of contact terminal is excessive, what rear end coordinated with supporter props up
Holding undersized, the cooperation section causing radially bullet pin is too small with the ratio of cantilever segment, and operational torque is excessive, easily causes annular dynamic
Switch torque is caused to strengthen the situation even turning motionless (not from contracting) when contact travel is excessive.The biggest electric current and how combined
Switch dielectric level between static contact is more difficult to time higher realize, and makes the application of this structure of contact terminal be restricted.
Summary of the invention
The technical problem to be solved is the problem for above-mentioned existence, it is provided that a kind of off circuit tap changer, effectively
The rotating torque of operation when reducing moving contact gearshift, lightly completes the tap conversion of switch.
The present invention solves above-mentioned technical problem and be the technical scheme is that a kind of off circuit tap changer be easy to and transfer the files, including
Static contact bearing and the main shaft being threaded onto static contact bearing, the top attended operation mechanism of described main shaft, bottom connects moving contact group
Part, static contact bearing be provided at circumferentially spaced static contact, moving contact component correspondence is connected across between two adjacent static contacts and closely connects
Touching, described moving contact component includes that cyclic spring moving contact and supporter, described supporter are connected with main shaft, described cyclic spring
Moving contact is set in supporter, the inner peripheral surface of cyclic spring moving contact and supporter phase configuration, outer peripheral face and static contact phase configuration,
It is characterized in that, described cyclic spring moving contact includes the annular dynamic contact being set on supporter, annular dynamic contact and
Radially bullet pin it is installed between gripping member, the sliding pin hole phase configuration that the supporting section of described radial direction bullet pin rear end and supporter are offered,
The radially free segment termination of bullet pin front end and the length of the inner peripheral surface phase configuration of annular dynamic contact, described supporting section and described free segment
Than being more than or equal to 1 when shelves (non-gearshift).
By such scheme, described radial direction bullet pin includes sliding pin and spring, and the middle leading portion outer wall of sliding pin is circumferentially arranged with first step
Portion, described both ends of the spring offsets with described first step portion and described supporter outboard end respectively；The radially free segment of bullet pin front end
The inner peripheral surface phase configuration of roller and annular dynamic contact is installed in termination.
By such scheme, described sliding pin hole is externally provided with flange and forms second step portion with supporter outboard end, and described spring housing is loaded on
Flange its two ends outer offset with described first step portion and second step portion respectively.
By such scheme, described supporter outboard end is provided with the ring spring bore concentric with sliding pin hole, and described both ends of the spring is respectively
Offset with bottom described first step portion and described spring base hole.
By such scheme, described supporter is provided with the wing shifting block of evagination, institute corresponding to the both sides, front end of annular dynamic contact inner peripheral surface
State wing shifting block and annular dynamic contact inner peripheral surface phase configuration, and the wire length of the external contact of wing shifting block, both sides is dynamic less than annular tactile
The internal diameter of head, for the 9/10～6/10 of annular dynamic contact internal diameter.
By such scheme, described static contact bearing is the dish type bearing of setting symmetrical above and below, the upper and lower two ends of static contact and described dish type
Bearing is connected.
By such scheme, described static contact bearing is insulating cylinder, and static contact is circumferentially fixed on the inwall of described insulating cylinder.
By such scheme, described static contact is column static contact.
By such scheme, constituting single-phase switch structure when described moving contact and static contact are one group, moving contact and static contact are two groups
Or when three groups, constitute heterogeneous construction of switch, described heterogeneous construction of switch includes along many groups moving contact that described main shaft is the most spaced apart,
Also including the many groups static contact along described insulating cylinder axial distribution, many group moving contacts are staggered up and down to be installed, and mutually insulated.
By such scheme, described supporting section is 1.2～2.0 with the ratio of described free segment.
The invention has the beneficial effects as follows: a kind of off circuit tap changer be easy to and transfer the files is provided, by arranging second on supporter
Stage portion and spring base hole, reduce the jib-length of radially bullet pin, and the supporting section increasing radially bullet pin rear end is offered on supporter
The length of fit in sliding pin hole, strengthen the length ratio of supporting section and free end, and then the rotation of operation when reducing moving contact gearshift
Moment, it is to avoid occur annular dynamic contact stroke to cause switch torque to strengthen the situation even turning motionless (not from contracting) time excessive, light
Complete the tap conversion of switch.The wing setting set ahead can make the effect above further be strengthened.So it is not only convenient for gearshift
Operation, improves the reliability of switch tap conversion, enhances the contact performance of contact, and decrease the mill of dynamic/static contact
Damage, extend the service life of switch.
Accompanying drawing explanation
Fig. 1 is the sectional view of first embodiment of the invention.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the sectional view of second embodiment of the invention.
Fig. 4 is the sectional view of third embodiment of the invention.
Fig. 5 is the B-B view of Fig. 4.
Wherein: 1. dish type bearing, 2. main shaft, 3. operating mechanism, 4. column static contact, 5. annular dynamic contact, 6. roller, 7.
First step portion, 8. sliding pin, the most wing shifting block, 10. spring, 11. insulating cylinders, 12. supporters, 13. second step portions, 14.
Spring base hole.
Detailed description of the invention
For being more fully understood that the present invention, the invention will be further described with embodiment below in conjunction with the accompanying drawings.
One embodiment of the present of invention as shown in Figure 1-2, be one single-phase five grades without excitation magnet drum-shape switch, prop up including static contact
Seat and the main shaft 2 being threaded onto static contact bearing, static contact bearing is the dish type bearing 1 of setting symmetrical above and below, and the top of main shaft connects
Operating mechanism 3, bottom connect moving contact component, static contact bearing be provided at circumferentially spaced static contact, static contact is column stationary contact
4, moving contact component correspondence is connected across between two adjacent static contacts and is in close contact, and moving contact component includes that cyclic spring is dynamic and touches
Head and supporter 12, supporter is connected with main shaft, and cyclic spring moving contact is set in supporter, the inner circumferential of cyclic spring moving contact
Face and supporter phase configuration, outer peripheral face and static contact phase configuration.
Cyclic spring moving contact includes the annular dynamic contact 5 being set on supporter, installs between annular dynamic contact and supporter
There is a radially bullet pin, the sliding pin hole phase configuration radially offered on the supporting section of bullet pin rear end and supporter, the radially freedom of bullet pin front end
Section is 1.2～2.0 by the inner peripheral surface phase configuration of roller 6 with annular dynamic contact, supporting section with the ratio of free segment.
Radially 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, both ends of the spring
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 the
Two stage portion offset.
Supporter outboard end is provided with the spring eye 14 concentric with sliding pin hole, both ends of the spring respectively with first step portion and spring eye bottom
Offset (see Fig. 3).
Supporter is provided with the wing shifting block 9 of evagination corresponding to the both sides, front end of annular dynamic contact inner peripheral surface, and wing shifting block moves with annular
Contact inner peripheral surface phase configuration, and the wire length of the external contact of wing shifting block, both sides is less than the internal diameter of annular dynamic contact, moves for annular
The 9/10～6/10 of contact internal diameter, by arranging the wing shifting block of evagination in supporter both sides, the annular dynamic contact when switching gear shift
Act on by static contact outside with the common of interior wing shifting block, form torque, promote annular dynamic contact to turn to direction, predetermined side
Dynamic, due to the change of impetus, the rotating torque of operation when such boosting will effectively reduce contact gearshift, when switching current relatively
Greatly, the quantity of moving contact is more or between static contact, during dielectric level height, chord length increases when making moving contact go deep between static contact too much, opens
The effect closing gear-change operation torque light is especially apparent.
One embodiment of the present of invention as illustrated in figures 4-5, is that a three-phase ganged five grades props up without excitation magnet drum-shape switch, static contact
Seat is insulating cylinder 11, and static contact is circumferentially fixed on the inwall of insulating cylinder, and column static contact is along the circumferentially-spaced peace of insulating cylinder inwall
If six, and axially spaced laying three groups, constitute three-phase five grades；Corresponding to column static contact, the moving contact on main shaft is also pacified
Being provided with three groups, three groups of moving contacts interlock up and down and install, and mutually insulated, and often group moving contact is corresponding to a phase static contact, moves mutually
Contact is made up of 2～3 annular dynamic contacts arranged side by side.Other structures are identical with a upper embodiment.
When main shaft is under the effect of operating mechanism, moving contact synchronous axial system, it is achieved synchronize voltage regulation function, when the insulator of embodiment
During the form of the cage type that forms for insulating bar or insulating cylinder or tubular, i.e. constitute cage type or tubular off circuit tap changer.The present invention
The shunting switch of structure can vertical be installed, it is possible to horizontal installation, and simple in construction is easy to operate, contacts stable, reliable.
Claims (10)
1. it is easy to the off circuit tap changer transferred the files, including static contact bearing and the main shaft being threaded onto static contact bearing, described
The top attended operation mechanism of main shaft, bottom connects moving contact component, static contact bearing be provided at circumferentially spaced static contact, dynamic touch
Head assembly correspondence is connected across between two adjacent static contacts and is in close contact, and described moving contact component includes cyclic spring moving contact and props up
Gripping member, described supporter is connected with main shaft, and described cyclic spring moving contact is set in supporter, the inner circumferential of cyclic spring moving contact
Face and supporter phase configuration, outer peripheral face and static contact phase configuration, it is characterised in that described cyclic spring moving contact includes suit
Annular dynamic contact on supporter, is installed on radially bullet pin, after described radial direction bullet pin between annular dynamic contact and supporter
The sliding pin hole phase configuration offered on supporting section and the supporter of end, radially the free segment termination of bullet pin front end and annular dynamic contact is interior
Side face phase configuration, the length ratio of described supporting section and described free segment is more than or equal to 1.
A kind of off circuit tap changer being easy to transfer the files the most according to claim 1, it is characterised in that described radial direction bullet pin
Including sliding pin and spring, the middle leading portion outer wall of sliding pin is circumferentially arranged with first step portion, and described both ends of the spring is respectively with described first
Stage portion and described supporter outboard end offset；Radially the inner circumferential of roller and annular dynamic contact is installed in the free segment termination of bullet pin front end
Face phase configuration.
A kind of off circuit tap changer being easy to transfer the files the most according to claim 2, it is characterised in that outside described sliding pin hole
Be provided with flange and supporter outboard end and form second step portion, described spring housing be loaded on flange its two ends outer respectively with described First
Rank portion and second step portion offset.
A kind of off circuit tap changer being easy to transfer the files the most according to claim 2, it is characterised in that outside described supporter
Side is provided with the ring spring bore concentric with sliding pin hole, described both ends of the spring respectively with described first step portion and described spring base
Offset bottom hole.
5. according to a kind of off circuit tap changer being easy to transfer the files described in claim 3 or 4, it is characterised in that described support
Part is provided with the wing shifting block of evagination corresponding to the both sides, front end of annular dynamic contact inner peripheral surface, described wing shifting block with in annular dynamic contact
Side face phase configuration, and the wire length of the external contact of wing shifting block, both sides is less than the internal diameter of annular dynamic contact, in annular dynamic contact
The 9/10～6/10 of footpath.
A kind of off circuit tap changer being easy to transfer the files the most according to claim 5, it is characterised in that described static contact props up
Seat is the dish type bearing of setting symmetrical above and below, and the upper and lower two ends of static contact are connected with described dish type bearing.
A kind of off circuit tap changer being easy to transfer the files the most according to claim 4, it is characterised in that described static contact props up
Seat is insulating cylinder, and static contact is circumferentially fixed on the inwall of described insulating cylinder.
8. according to a kind of off circuit tap changer being easy to transfer the files described in claim 5 or 6, it is characterised in that described stationary contact
Head is column static contact.
9. according to a kind of off circuit tap changer being easy to transfer the files described in claim 5 or 6, it is characterised in that described dynamic tactile
Constituting single-phase switch structure when head and static contact are one group, moving contact and static contact are to constitute heterogeneous construction of switch when two groups or three groups,
Described heterogeneous construction of switch includes along many groups moving contact that described main shaft is the most spaced apart, also includes axially dividing along described insulating cylinder
Many groups static contact of cloth, many group moving contacts are staggered up and down to be installed, and mutually insulated.
A kind of off circuit tap changer being easy to transfer the files the most according to claim 1, it is characterised in that described supporting section with
The ratio of described 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 true CN106024435A (en) | 2016-10-12 |
| CN106024435B 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 |
|---|---|
| CN106024435B (en) | 2019-07-23 |
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