CN102169751A - Bar-shaped no-excitation tap switch with gear positioning - Google Patents
Bar-shaped no-excitation tap switch with gear positioning Download PDFInfo
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- CN102169751A CN102169751A CN 201110036685 CN201110036685A CN102169751A CN 102169751 A CN102169751 A CN 102169751A CN 201110036685 CN201110036685 CN 201110036685 CN 201110036685 A CN201110036685 A CN 201110036685A CN 102169751 A CN102169751 A CN 102169751A
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Abstract
The invention provides a bar-shaped no-excitation tap switch with gear positioning, wherein the technical problem to be solved is as follows: accidents such as burn-out of contact terminals and the like are caused because errors exist in the processing and assembling of spare parts, whether the offset of a rack bar and a moving contact terminal are in places accurately or not cannot be ensured when a handle is rotated, neither to know whether in places or not, and the operation of the moving contact terminal is easy to be not in place. The scheme of the invention is as follows: a blind hole is arranged on a bracket; a spring and a positioning ball are sequentially arranged in the blind hole from inside to outside; a positioning gear is coaxial with a drive shaft; the positioning gear is provided with wavy teeth; the positioning ball falls into the wave trough of the positioning gear and then positioned when no external force exists; and the distance between two adjacent wave troughs of the positioning gear corresponds to the contact terminal of the switch. The bar-shaped no-excitation tap switch with the gear positioning has the beneficial effects that whether the moving contact terminal is in place or not can be ensured when the handle is rotated; and in addition, the hand feeling is strong, thus the accidents such as burn-out of the contact terminals and the like caused by not-in-place operation of the moving contact terminal can be avoided.
Description
Technical field
The present invention relates to a kind of strip-like non-excitation tapping switch, is a kind of strip-like non-excitation tapping switch with gear detent mechanism specifically.
Background technology
Strip-like non-excitation tapping switch is the tap-change device of Transformer Winding, promptly the different parts in Transformer Winding is provided with shunting tap, changes the position of shunting tap, changes the number of turn of its Transformer Winding, thereby reach the pressure regulation effect that causes voltage fluctuation because of load variations, stablize line voltage.The strip-shape tap switch that uses is at present, and (referring to Fig. 1) is provided with position fixing handle 1 on top, and the handle bottom connects driving shaft 2, and driving shaft is coaxial with driven wheel 4,5 engagements of driving gear wheel and rack, and several moving contacts are arranged on the tooth bar.By rotary handle, drive driving shaft, driven wheel, tooth bar and moving contact successively, the realization moving contact is opened and is closed with different fixed contacts, changes the position of shunting tap.Because parts processing exists error and assembling to have error, can not guarantee that when rotary handle the displacement of tooth bar and moving contact accurately put in place, also can't know whether to put in place, it is not in place to occur the moving contact operation easily, causes accidents such as contact burning.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of strip-like non-excitation tapping switch that can avoid above-mentioned deficiency with gear location.
The object of the present invention is achieved like this: it comprises handle, driving shaft and support, and driving shaft is coaxial with gear shaft, and driving gear wheel and rack engagement is characterized in that: establish blind hole on support, shock mount and positioning bead successively from the inside to the outside in the blind hole; Positioning Gear is coaxial with driving shaft, and said Positioning Gear is meant this tooth undulate, and the trough place that positioning bead falls into Positioning Gear during no external force is positioned, and crest is lower than the radius of positioning bead; The distance of adjacent two troughs of Positioning Gear is corresponding with switch contact position (moving contact moves the distance between two fixed contacts).Gear of such trough definition, they are marked on the handle.When the needs diverter switch, rotary handle, driven wheel and Positioning Gear rotate simultaneously, drive tooth bar and do rectilinear motion, the crest of Positioning Gear makes in the positioning bead extrusion spring and contracts simultaneously, and after Positioning Gear continuation rotation, its crest turned over positioning bead, positioning bead slipped into trough rapidly under the effect of spring, make the driving gear drives tooth bar move corresponding position, positioning bead is locked in this trough when no external force simultaneously.
Compared with prior art, the invention has the beneficial effects as follows: guarantee that when rotary handle moving contact accurately puts in place, and feel is extremely strong, can avoids causing accidents such as contact burning because of the moving contact operation is not in place.
Description of drawings
Further specify the present invention below in conjunction with accompanying drawing.
Fig. 1 is existing strip-like non-excitation tapping switch schematic diagram.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the profile of Fig. 2 along the A-A line.
Embodiment
Referring to Fig. 2, it comprises handle 1, driving shaft 2 and support 3, and driving shaft is coaxial with 4 of driven wheels, and driving gear wheel and rack 5 engagement is established blind hole on support 3, shock mount 6 and positioning bead 7 successively from the inside to the outside in the blind hole; Positioning Gear 8 is coaxial with driving shaft 2, the said coaxial axle of Positioning Gear that is meant is rigidly connected with the driving shaft diaxon, perhaps driving shaft also is the axle of Positioning Gear, present embodiment be driving shaft simultaneously as 8 of 4 of driven wheels and Positioning Gears, and Positioning Gear 8 is descending the two to be structure as a whole at last, driven wheel 4.Referring to Fig. 3, said Positioning Gear is meant this tooth undulate, and the trough place that positioning bead falls into Positioning Gear during no external force is positioned, and crest is lower than the radius of positioning bead, and present embodiment is established seven troughs and seven crests 9 altogether; The pass by distance of adjacent two troughs of positioning bead is corresponding with switch contact position (moving contact moves the distance between two fixed contacts).Gear of such trough definition, a gear is marked on the handle 1 arbitrarily.When the needs diverter switch, rotary handle, driven wheel and Positioning Gear rotate simultaneously, drive tooth bar and do rectilinear motion, the crest of Positioning Gear makes in the positioning bead extrusion spring and contracts simultaneously, and after Positioning Gear continuation rotation, its crest turned over positioning bead, positioning bead slipped into trough rapidly under the effect of spring, make the driving gear drives tooth bar move corresponding position, positioning bead is locked in this trough when no external force simultaneously.
The difference that forms the radius of the radius of trough circular arc line and positioning bead on the Positioning Gear preferably is more or less the same, and such as within 0.5mm the time, locating effect and feel are best.
Claims (2)
1. one kind has the strip-like non-excitation tapping switch that gear is located, it comprises handle, driving shaft and support, and driving shaft is coaxial with gear shaft, the engagement of driving gear wheel and rack, it is characterized in that: on support, establish blind hole, shock mount and positioning bead successively from the inside to the outside in the blind hole; Positioning Gear is coaxial with driving shaft, and said Positioning Gear is meant this tooth undulate, and the trough place that positioning bead falls into Positioning Gear during no external force is positioned, and crest is lower than the radius of positioning bead; The distance of adjacent two troughs of Positioning Gear is corresponding with the switch contact position.
2. according to the described strip-like non-excitation tapping switch of claim 1 with gear location, it is characterized in that: said driving shaft, gear shaft and positioning tooth wheel shaft are coaxial, be meant driving shaft simultaneously as gear shaft and positioning tooth wheel shaft, and Positioning Gear is descending the two to be structure as a whole at last, driven wheel; The tooth undulate of Positioning Gear specifically is seven troughs and seven crests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100366851A CN102169751B (en) | 2011-02-12 | 2011-02-12 | Bar-shaped no-excitation tap switch with gear positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100366851A CN102169751B (en) | 2011-02-12 | 2011-02-12 | Bar-shaped no-excitation tap switch with gear positioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102169751A true CN102169751A (en) | 2011-08-31 |
| CN102169751B CN102169751B (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100366851A Active CN102169751B (en) | 2011-02-12 | 2011-02-12 | Bar-shaped no-excitation tap switch with gear positioning |
Country Status (1)
| Country | Link |
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| CN (1) | CN102169751B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957739A (en) * | 2016-07-13 | 2016-09-21 | 武汉泰普变压器开关有限公司 | Gear homing device for transformer tap-changer |
| CN107706011A (en) * | 2017-12-06 | 2018-02-16 | 宁波诗宏千禧贸易有限公司 | Shunting switch |
| CN109637857A (en) * | 2018-11-05 | 2019-04-16 | 海鸿电气有限公司 | A kind of efficient disk-type no-excitation shunting switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001006951A (en) * | 1999-06-21 | 2001-01-12 | Aichi Electric Co Ltd | Quick cut-off mechanism of selection switch in on-load tap selection apparatus |
| CN201259840Y (en) * | 2008-09-25 | 2009-06-17 | 武汉泰普变压器开关有限公司 | Contact tip construction of non-excited tapping switch |
| CN201413764Y (en) * | 2009-04-09 | 2010-02-24 | 浙江省三门腾龙电器有限公司 | Transmission device used in tapping switch of transformer |
| CN101661834A (en) * | 2009-08-26 | 2010-03-03 | 武汉泰普变压器开关有限公司 | Off circuit tap changer for transformer |
| CN201966051U (en) * | 2011-02-12 | 2011-09-07 | 辽宁金立电力电器有限公司 | Strip-type excitation-free tap switch with gear positioning |
-
2011
- 2011-02-12 CN CN2011100366851A patent/CN102169751B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001006951A (en) * | 1999-06-21 | 2001-01-12 | Aichi Electric Co Ltd | Quick cut-off mechanism of selection switch in on-load tap selection apparatus |
| CN201259840Y (en) * | 2008-09-25 | 2009-06-17 | 武汉泰普变压器开关有限公司 | Contact tip construction of non-excited tapping switch |
| CN201413764Y (en) * | 2009-04-09 | 2010-02-24 | 浙江省三门腾龙电器有限公司 | Transmission device used in tapping switch of transformer |
| CN101661834A (en) * | 2009-08-26 | 2010-03-03 | 武汉泰普变压器开关有限公司 | Off circuit tap changer for transformer |
| CN201966051U (en) * | 2011-02-12 | 2011-09-07 | 辽宁金立电力电器有限公司 | Strip-type excitation-free tap switch with gear positioning |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957739A (en) * | 2016-07-13 | 2016-09-21 | 武汉泰普变压器开关有限公司 | Gear homing device for transformer tap-changer |
| CN107706011A (en) * | 2017-12-06 | 2018-02-16 | 宁波诗宏千禧贸易有限公司 | Shunting switch |
| CN109637857A (en) * | 2018-11-05 | 2019-04-16 | 海鸿电气有限公司 | A kind of efficient disk-type no-excitation shunting switch |
| CN109637857B (en) * | 2018-11-05 | 2023-08-11 | 海鸿电气有限公司 | Efficient disk-type non-excitation tapping switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102169751B (en) | 2012-08-22 |
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