CN203931927U - A kind of drive unit of on load tap changer - Google Patents
A kind of drive unit of on load tap changer Download PDFInfo
- Publication number
- CN203931927U CN203931927U CN201420208469.XU CN201420208469U CN203931927U CN 203931927 U CN203931927 U CN 203931927U CN 201420208469 U CN201420208469 U CN 201420208469U CN 203931927 U CN203931927 U CN 203931927U
- Authority
- CN
- China
- Prior art keywords
- drive unit
- switch shaft
- vacuum tube
- joystick
- cam disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011810 insulating material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
A drive unit on load tap changer, described on load tap changer comprises axle, be located at cam disc on this axle and the vacuum tube installing ring with described cam disc concentric; Described installing ring outer is provided with the vacuum tube mounting groove that is parallel to described axle, in described mounting groove, be provided with vacuum tube, described drive unit comprise the switch shaft that is axially connected with described vacuum tube and with described switch shaft radially joystick connected vertically, roll in one end of described radially joystick on described cam disc, described switch shaft is made up of steel material, and described cam disc is made up of insulating material; This drive unit intensity is high, resistance to wears, and the time in useful life is long.
Description
Technical field
The utility model relates to a kind of drive unit, specifically relates to a kind of drive unit of on load tap changer.
Background technology
On load tap changer is a kind ofly to provide the switching device of constant voltage when the load variations for transformer, its general principle is exactly in the situation that ensureing not interrupt load electric current, realize the switching between tap in Transformer Winding, thereby change the number of turn of winding, be the voltage ratio of transformer, finally realize the object of pressure regulation; Vacuum on-load operation switch is mainly realized arc extinction by vacuum tube, makes the scaling loss corrosion of contact in vacuum tube can drop to bottom line.Two vacuum tubes of the vacuum on-load operation switch series connection using are at present fixed on vacuum tube mounting panel, central rotating shaft drives cam disc to rotate, cam disc passes to motion on the roller moving near its edge, roller is moved on the protruding track of cam disc, thereby by radial bars, switch shaft is moved up and down, change vacuum tube open and-shut mode, cam disc in existing equipment, track, roller, radial bars is all that metal material is made, in order to solve on load tap changer inter-stage or alternate Insulation Problems, switch shaft is set to insulating material, but the properties of materials of insulating material own, make intensity and the anti-abrasion-resistance of switch shaft lower, in the process of diverter switch due to the effect of power, can cause for a long time insulated switch shaft distortion (kidney-shaped), the thread abrasion of insulated switch axle causes the problems such as inserts comes off, and this vacuum on-load operation switch is in the time regulating vacuum tube clearance between open contacts, can only regulate by mobile fixing vacuum tube the distance of opening of contact, not easy to operate.
Utility model content
The purpose of this utility model is to provide a kind of drive unit of on load tap changer, and this drive unit intensity is high, resistance to wears, and the time in useful life is long.
Concrete scheme of the present utility model is: a kind of drive unit of on load tap changer, and described on load tap changer comprises axle, be located at cam disc on this axle and the vacuum tube installing ring with described cam disc concentric; Described installing ring outer is provided with the vacuum tube mounting groove that is parallel to described axle, in described mounting groove, be provided with vacuum tube, described drive unit comprise the switch shaft that is axially connected with described vacuum tube and with described switch shaft radially joystick connected vertically, roll in one end of described radially joystick on described cam disc, described switch shaft is made up of steel material, and described cam disc is made up of insulating material.
Adopt technique scheme, technique effect of the present utility model has:
1, the application adopts insulating material to make cam disc, and the metal material pressure injection of making protruding track, in insulation cam disc, has been ensured on load tap changer inter-stage or alternate Insulation Problems.
2, the application adopts metal material carbon steel to be processed into the axis body that two ends are screw threads switch shaft, has strengthened the wear-resistant intensity that undermines of switch shaft, has extended the useful life of on load tap changer.
3, the application switch shaft with radially between joystick, be provided with and be connected base, the screwed hole in this connection base is threaded with switch shaft, in the time regulating vacuum tube clearance between open contacts, rotary switch axle, the distance bottom by-pass cock axle and screwed hole.
4, the application is hexagonal projection cylinder by being provided with cross section in the middle part of switch shaft, is convenient to rotary switch axle, regulates vacuum tube clearance between open contacts.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model vacuum tube drive unit.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of drive unit of on load tap changer, described on load tap changer comprises axle, be located at cam disc 3 on this axle and the vacuum tube installing ring with described cam disc 3 concentrics, described installing ring outer is provided with the vacuum tube mounting groove that is parallel to described axle, in described mounting groove, be provided with vacuum tube 7, described drive unit comprise the switch shaft 1 that is axially connected with described vacuum tube 7 and with described switch shaft 1 radially joystick 2 connected vertically, between described switch shaft 1 and described radially joystick 2, be provided with and be connected base 4, the lower end of switch shaft 1 be connected base 4 and be threaded, described connection base 4 has screwed hole with one end that switch shaft 1 is connected, the lower end of switch shaft 1 can move up and down in screwed hole, the other end end that connects base 4 is fixed on the base plate of ring-type, this annular base plate is set on cam disc 3, but do not contact with the outer of cam disc 3, connect the other end and described vertical connection of radially joystick 2 of base 4, radially joystick 2 is hinged with the other end that is connected base 4 by pivot pin, joystick 2 radially close on a side of cam disc 3 by pivot pin with to be fixed on base on base plate hinged, make radially joystick 2 pass through the upper and lower displacement of two pivot pin control switch axles 1, on the circumference of the upper plane of described cam disc 3, be provided with at least one protruding track 5, one end of described joystick 2 is provided with roller 10, described roller 10 can roll on protruding track 5, when axle 9 rotates, drive cam disc 3 to rotate, roller 10, in protruding track 5 scroll-up/down, makes to move up and down with the switch shaft 1 that radially joystick 2 other ends are connected, and realizes the open and close of controlling vacuum tube, the amplitude moving up and down at protruding track 5 in order to increase roller, between described protruding track, be provided with can holding portion described in groove or the through hole 6 of roller.
Switch shaft 1 in the application is made up of steel material, be preferably C45, cam disc 3 is made up of insulating material, and this design has solved on load tap changer inter-stage or alternate Insulation Problems, strengthen again intensity and the wear resistence of switch shaft 1, extended on load tap changer useful life.
The application is provided with cross section and is hexagonal projection cylinder 8 at the middle part of described switch shaft 1, be convenient to rotary switch axle 1, control switch axle 1 and be connected the distance of base 4 screwed holes bottoms, thus regulate the distance of opening of vacuum tube contact.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any amendment of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. a drive unit on load tap changer, described on load tap changer comprises axle (9), be located at cam disc (3) on this axle and the vacuum tube installing ring with described cam disc (3) concentric; Described installing ring outer is provided with the vacuum tube mounting groove that is parallel to described axle, in described mounting groove, be provided with vacuum tube (7), it is characterized in that, described drive unit comprise the switch shaft (1) that is axially connected with described vacuum tube (7) and with described switch shaft (1) radially joystick connected vertically (2), roll described cam disc (3) is upper in one end of described radially joystick (2).
2. drive unit as claimed in claim 1, it is characterized in that, between described switch shaft (1) and described radially joystick (2), be provided with and be connected base (4), one end of described connection base (4) has the screwed hole being threaded with described switch shaft (1), its other end and vertical connection of described radially joystick (2).
3. drive unit as claimed in claim 1, it is characterized in that, on the circumference of the upper plane of described cam disc (3), being provided with at least one protruding track (5), rolls described protruding track (5) is upper in one end of described joystick (2).
4. drive unit as claimed in claim 1, is characterized in that, the end of described radially joystick (2) is provided with roller (10).
5. drive unit as claimed in claim 3, is characterized in that, between described protruding track, be provided with can holding portion roller groove or through hole (6).
6. drive unit as claimed in claim 1, is characterized in that, described switch shaft (1) middle part is provided with cross section and is hexagonal projection cylinder (8).
7. drive unit as claimed in claim 1, is characterized in that, described switch shaft (1) is C45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208469.XU CN203931927U (en) | 2014-04-25 | 2014-04-25 | A kind of drive unit of on load tap changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208469.XU CN203931927U (en) | 2014-04-25 | 2014-04-25 | A kind of drive unit of on load tap changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931927U true CN203931927U (en) | 2014-11-05 |
Family
ID=51827698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420208469.XU Expired - Lifetime CN203931927U (en) | 2014-04-25 | 2014-04-25 | A kind of drive unit of on load tap changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956296A (en) * | 2014-04-25 | 2014-07-30 | 国家电网公司 | Driving device for controlling vacuum tubes of vacuum on-load tap-changer |
| CN107369590A (en) * | 2017-08-30 | 2017-11-21 | 山东泰开电力设备有限公司 | Double-track cam structure applied to load ratio bridging switch |
-
2014
- 2014-04-25 CN CN201420208469.XU patent/CN203931927U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956296A (en) * | 2014-04-25 | 2014-07-30 | 国家电网公司 | Driving device for controlling vacuum tubes of vacuum on-load tap-changer |
| CN103956296B (en) * | 2014-04-25 | 2016-08-24 | 国家电网公司 | A kind of driving means for controlling vacuum on-load operation switch vacuum tube |
| CN107369590A (en) * | 2017-08-30 | 2017-11-21 | 山东泰开电力设备有限公司 | Double-track cam structure applied to load ratio bridging switch |
| CN107369590B (en) * | 2017-08-30 | 2019-07-09 | 山东泰开电力设备有限公司 | Double-track cam structure applied to load ratio bridging switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |