CN102024552B - Large-rotating angle quick mechanism used for on-load tap-changer - Google Patents
Large-rotating angle quick mechanism used for on-load tap-changer Download PDFInfo
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- CN102024552B CN102024552B CN200910195679A CN200910195679A CN102024552B CN 102024552 B CN102024552 B CN 102024552B CN 200910195679 A CN200910195679 A CN 200910195679A CN 200910195679 A CN200910195679 A CN 200910195679A CN 102024552 B CN102024552 B CN 102024552B
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Abstract
The invention discloses a large-rotating angle quick mechanism used for an on-load tap-changer. The mechanism comprises a base, a movement and a drive centre shaft, wherein the movement comprises an upper sliding rod, a lower sliding rod, an upper sliding box and a lower sliding box, wherein the upper sliding rod and the lower sliding rod are erected on the base; the upper sliding box and the lower sliding box are respectively arranged on the upper sliding box and the lower sliding box in a sliding way; an eccentric wheel driven by an electric mechanism drives the upper sliding box to slide so that an energy storage spring is compressed for storing energy; when the energy storage spring is released, the lower sliding box is pushed to move quickly; a hook component is provided with two hooks used for hooking the lower sliding box at different times respectively; a rack is fixed to the lower part of the lower sliding box; a gear is arranged at the shaft end, extended into the lower sliding box, of the drive centre shaft; and the gear is engaged with the rack for converting the rectilinear motion of the lower sliding box into the rotary motion of the drive centre shaft. The rotating angle of the drive centre shaft can reach any required angle, such as a 120-degree rotating angle suitable for a vacuum on-load tap-changer. The mechanism also has the advantages of low running noises, long service life and reliable operation.
Description
Technical field
The present invention relates to the on load tap changer technical field, particularly a kind of big corner quick mechanism that is used on load tap changer.
Background technology
On load tap changer is used for transformer and under loaded situation, changes the tap of connecting different windings, through changing the turn ratio of Transformer Winding, reaches the purpose that changes the transformer output voltage.Because ground is carried out in this conversion normally phase step type fast, so on load tap changer all has a mechanism that utilizes spring energy-storage and carry out rapid release.
China utility model Granted publication CN2891237 discloses a kind of " the reciprocal gunlock quick release mechanism of on load tap changer cathetus "; When on load tap changer during in the tap conversion; Drive eccentric wheel by motor-operating mechanism, promote two side slides, by slide block drive upper slide box along guide post to an end motion; And at this moment lower slide box is caught on motionlessly by the grab parts, makes the spring between the upper and lower sliding box be compressed energy storage.When upper slide box moved near terminal point, collision block rushed open the grab parts, and lower slide box is discharged, and along guide post and the equidirectional rapid movement of upper slide box, the gun of lower slide box drives the change action of straight line diverter switch to lower slide box under the effect of energy-stored spring.Perhaps referring to Fig. 1; The gun of lower slide box 1 drives the conversion that a slide block switching mechanism 3 realizes rotatablely moving through a chute 2 that is fixed on the lower slide box 1; And 4 rotations of slide block switching mechanism 3 drive center power transmission shafts are handled on load tap changer and are accomplished the tap action.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of big corner quick mechanism that is used on load tap changer, to adapt to the needs of transmission central shaft wide-angle rotation in the on load tap changer.
Technical problem to be solved by this invention can realize through following technical scheme:
A kind of big corner quick mechanism that is used on load tap changer comprises:
One base and
One is installed in the movement on the base, and
One passes said base and is supported in the transmission central shaft on the said base;
Said movement comprises:
Be set up in drop shot and upper slide bar on the said base;
Slip is arranged at the lower slide box on the said drop shot; Said lower slide box is provided with the flanging that extends to the upper slide box direction along the axial two ends of said drop shot;
Slip is arranged at the upper slide box on the said upper slide bar; One eccentric wheel by the motor drive mechanism driving, said eccentric wheel drives said upper slide box and reciprocatingly slides along said upper slide bar, and said eccentric wheel is positioned at upper slide box, and this eccentric connecting portion protrudes said upper slide box and is connected with said motor drive mechanism;
Be sheathed on energy-stored spring and two spring bases on the said upper slide bar; Said energy-stored spring is between two spring bases; Said two ends spring base is connected with upper slide box and each spring base is provided with the retaining portion of the flanging inwall that is positioned at said lower slide box; When said upper slide box moves along said upper slide bar, rely on flanging and the restriction of the retaining portion on the spring base on the said lower slide box, make the energy-stored spring compressed energy-storage; And when energy-stored spring is released, rely on flanging and the retaining portion on the spring base on the said lower slide box to promote the lower slide box rapid movement;
At least one group of grab parts that are located on the said base, said grab parts have two in order to hook the grab of said lower slide box respectively at different time, and said grab relies on the driving of said upper slide box and moves; It is characterized in that:
On described lower slide box, be installed with a tooth bar, the axle head that said transmission extension of central axis advances lower slide box is provided with gear, and the engagement of said wheel and rack converts the rectilinear motion of said lower slide box to transmission central shaft rotatablely move.
In said upper slide box, be arranged with two slide blocks on the axial direction of said upper slide bar of edge; Said two slide blocks lay respectively at the said eccentric two relative outsides; When eccentric wheel contacts with a slide block; To drive said upper slide box and move, and when eccentric wheel contacts with another slide block, will drive said upper slide box and move round about to a direction.
Consider in the actual motion that elastic force is not enough because temperature hangs down the lax of oily viscous effect and energy-stored spring, makes lower slide box can not move to new terminal location exactly, it is not in place to cause on load tap changer to switch.The present invention said eccentric wheel towards said lower slide box that the one side on off-centre be provided with a bump portion; Said drop shot axially is arranged with two corresponding collision blocks with said bump portion in said lower slide box upper edge; Before lower slide box moves to a new terminal location; Bump portion and one of them collision block bump against, and so just can additionally shift lower slide box onto new terminal location exactly through eccentric rotation.
In order to reduce noise that the bump collision of bump portion sends and the useful life that prolongs bump portion and collision block, said bump portion is a roller.
Described eccentric wheel outer ring is set with a light-duty bearing, and said light-duty bearing contacts with two slide blocks, and the sliding friction between light-duty bearing and two slide blocks is become rolling friction, to reduce noise and to prolong its useful life.
Owing to adopted technical scheme as above; It is needed arbitrarily angled that the anglec of rotation of transmission central shaft of the present invention can reach; As be applicable to 120 ° of anglecs of rotation of vacuum on-load operation switch, and the anglec of rotation of transmission central shaft can be adjusted through diameter, the number of teeth of tooth bar length, the number of teeth and gear.The present invention has also that running noises is low, and shelf life is long, reliable advantage.
Description of drawings
Fig. 1 is the annexation sketch map between lower slide box and the transmission central shaft in the existing on load tap changer gunlock quick mechanism.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is an exploded perspective sketch map of the present invention.
Fig. 4 removes the structural representation of upper slide box and base for the present invention.
Fig. 5 is the structural representation of movement of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand that below in conjunction with concrete diagram, a nearly step is set forth the present invention.
Referring to Fig. 2, Fig. 3, a kind of big corner quick mechanism that is used on load tap changer shown in Figure 2 comprises base 100, movement 200, transmission central shaft 300.In conjunction with referring to Fig. 3; Respectively be provided with limiting plate 110, a 110a who defines movement 200 range of movement at base 100 along the both sides of movement 200 directions of motion; On limiting plate 110, offer in order to two upper slide bar holes 111 of setting up two upper slide bars with in order to two drop shot holes 112 of setting up two drop shots and in order to the bumper post hole 113 of two bumper posts to be installed, the structure of the structure of limiting plate 110a and limiting plate 110 is identical.Be provided with a centre bore 120 at the center of base 100, this centre bore 120 is in order to pass and to support transmission central shaft 300.On base 100, also be provided with two jack-post covers 130, in order to two groups of grab parts to be installed.
Referring to all accompanying drawings; Limiting plate 110, the last drop shot hole 112 of 110a are passed in the two ends of two drop shots 210 of whole movement 200; Two drop shots 210 are set up on the base 100; Limiting plate 110, the last upper slide bar hole 111 of 110a are passed in the two ends of two upper slide bars 220 of same movement 200, and two upper slide bars 220 are set up on the base 100.In limiting plate 110, four last bumper post holes 113 of 110a a bumper post 230 is installed respectively; Respectively there are two bumper posts 230 lower slide box 240 direction of motion both sides, rely on four bumper posts 230 to slow down lower slide box 240 impacts and limit the terminal location of lower slide box both direction motion.
Respectively be provided with a collision block 242 at lower slide box 240 along both sides on the axial direction of drop shot 210, the effect of collision block 242 will combine eccentric description to carry out below.
At lower slide box 240 internal fixation one tooth bar 245 is arranged; Transmission central shaft 300 is supported in the centre bore 120 of base 100 through bearing 310; And extending into the axle head of lower slide box 240, transmission central shaft 300 is provided with gear 320; Gear 320 and tooth bar 245 engagements convert the rectilinear motion of lower slide box 240 to transmission central shaft 300 rotatablely move.
Two energy-stored springs 270 and 4 spring bases 280 are enclosed within on two upper slide bars 210; Wherein energy-stored spring 270 is between two ends spring base 280; The periphery of each spring base 280 is divided into three sections by diameter vertically; Wherein one section of the diameter maximum is retaining portion 281, is positioned at the inner face of 240 liang of side edgefolds 243 of lower slide box; Middle one section diameter is placed in the middle, is a slip ring 282, and the internal diameter of the semicircle spring base hole 243 on the external diameter of slip ring 282 and lower slide box 240 flangings 243 adapts; One section diameter minimum of outermost is an axle sleeve 283, and spring base hole 251 tight fits on the external diameter of axle sleeve 283 and the upper slide box 250 are enclosed within the spring base hole on the upper slide box 250 251 on the axle sleeve 283, and upper slide box 250 is slidingly mounted on the upper slide bar 210.
Consider in the actual motion; Elastic force is not enough because temperature hangs down the lax of oily viscous effect and energy-stored spring; And make lower slide box 240 can not move to new terminal location exactly, and it is not in place to cause on load tap changer to switch, and therefore off-centre is provided with a roller 263 on eccentric wheel 260 faces down sliding box 240 those one sides; Before lower slide box 240 moves to a new terminal location; Roller 263 and a wherein side impact piece 242 collisions so just can additionally be shifted lower slide box 240 onto new terminal location through the rotation of eccentric wheel 260 exactly.
Two groups of grab parts 290 are separately positioned on the base 100; And be positioned at lower slide box 240 along drop shot 210 both sides in the radial direction, each group grab parts 290 are combined by two identical grabs 291 of structure, and an end of two grabs 291 is installed on the jack-post cover 130 of base 100 through a (not shown); Each grab 291 can both be swung around axle; The hook portion of each grab 291 is hooked a flanging 243 of lower slide box 240 in inside swing process, lower slide box 240 is not moved; When the jacking block on the upper slide box 250 254 rushed open this grab 291, lower slide box 240 can be fast to a direction motion under energy-storaging spring 270 effects.In order to reduce jacking block 254 and the noise that grab 291 clashes into, also make jacking block 254 can successfully rush open grab 291, a roller 292 is installed on grab 291.
Operation principle of the present invention is: when on load tap changer need switch; Motor drive mechanism drives eccentric wheel 260 rotations; When eccentric wheel 260 contacts with a slide block 253; To drive upper slide box 250 and move to a direction along upper slide bar 210, and hook a flanging 243 of lower slide box 240 at this moment owing to a grab 291, lower slide box 240 is motionless.And in upper slide box 250 motion processes; Spring base 280 through with these slide block 253 opposite sides contracts energy-stored spring 270 to these slide block 253 1 side pressures; This moment is because flanging 243 restrictions of lower slide box 240 and these slide block 253 same side; Also do not move with the spring base 280 of these slide block 253 homonymies, energy-stored spring 270 is compressed energy storage.When upper slide box 250 moves to a position; Jacking block 254 on the upper slide box 250 rushes open the grab 291 that hooks lower slide box 240, and lower slide box 240 is released, under energy-stored spring 270 effect of releasing energy; Fast to a new terminal direction motion; Through the engagement of tooth bar 245 with gear 320, drive 300 rotations of transmission central shaft, handle on load tap changer and accomplish the tap action.After lower slide box 240 arrives this terminal location, another grab 291 will hook another flanging 243 of lower slide box 240, wait for action next time.Lower slide box 240 moves each time; 260 half turn of eccentric wheel, and when eccentric wheel 260 carries out another half-turn rotation, will be according to above-mentioned direction; Make lower slide box 240 rapid movement in the opposite direction; Through the engagement of tooth bar 245 with gear 320, drive 300 rotations of transmission central shaft, handle on load tap changer and accomplish the action of another time tap.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection range to be defined by appending claims and equivalent thereof.
Claims (5)
1. be used for the big corner quick mechanism of on load tap changer, comprise:
One base and
One is installed in the movement on the base, and
One passes said base and is supported in the transmission central shaft on the said base;
Said movement comprises:
Be set up in drop shot and upper slide bar on the said base;
Slip is arranged at the lower slide box on the said drop shot, and said lower slide box is provided with the flanging that extends to the upper slide box direction along the axial two ends of said drop shot;
Slip is arranged at the upper slide box on the said upper slide bar; One eccentric wheel by the motor drive mechanism driving, said eccentric wheel drives said upper slide box and reciprocatingly slides along said upper slide bar, and said eccentric wheel is positioned at upper slide box, and this eccentric connecting portion appears said upper slide box and is connected with said motor drive mechanism;
Be sheathed on energy-stored spring and two ends spring base on the said upper slide bar; Said energy-stored spring is between the spring base of two ends; Said two ends spring base is connected with upper slide box and each spring base is provided with the retaining portion of the flanging inwall that is positioned at said lower slide box; When said upper slide box moves along said upper slide bar, rely on flanging and the restriction of the retaining portion on the spring base on the said lower slide box, make the energy-stored spring compressed energy-storage; And when energy-stored spring is released, rely on flanging and the retaining portion on the spring base on the said lower slide box to promote the lower slide box rapid movement;
At least one group of grab parts that are located on the said base, said grab parts have two in order to hook the grab of said lower slide box respectively at different time, and said grab relies on the driving of said upper slide box and moves; It is characterized in that:
On described lower slide box, be installed with a tooth bar, the axle head that said transmission extension of central axis advances lower slide box is provided with gear, and the engagement of said wheel and rack converts the rectilinear motion of said lower slide box to transmission central shaft rotatablely move.
2. the big corner quick mechanism that is used on load tap changer as claimed in claim 1; It is characterized in that along being arranged with two slide blocks on the axial direction of said upper slide bar, said two slide blocks lay respectively at the said eccentric two relative outsides in said upper slide box; When eccentric wheel contacts with a slide block; To drive said upper slide box and move, and when eccentric wheel contacts with another slide block, will drive said upper slide box and move round about to a direction.
3. according to claim 1 or claim 2 the big corner quick mechanism that is used on load tap changer; It is characterized in that be provided with a bump portion in said eccentric wheel off-centre on that one side of said lower slide box, said drop shot axially is arranged with two corresponding collision blocks with said bump portion in said lower slide box upper edge; Before lower slide box moves to a new terminal location; Bump portion and one of them collision block bump against, and through eccentric rotation, additionally shift lower slide box onto new terminal location exactly.
4. the big corner quick mechanism that is used on load tap changer as claimed in claim 3 is characterized in that, said bump portion is a roller.
5. the big corner quick mechanism that is used on load tap changer as claimed in claim 2; It is characterized in that; Described eccentric wheel outer ring is set with a light-duty bearing, and said light-duty bearing contacts with two slide blocks, and the sliding friction between light-duty bearing and two slide blocks is become rolling friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910195679A CN102024552B (en) | 2009-09-15 | 2009-09-15 | Large-rotating angle quick mechanism used for on-load tap-changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910195679A CN102024552B (en) | 2009-09-15 | 2009-09-15 | Large-rotating angle quick mechanism used for on-load tap-changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102024552A CN102024552A (en) | 2011-04-20 |
| CN102024552B true CN102024552B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910195679A Active CN102024552B (en) | 2009-09-15 | 2009-09-15 | Large-rotating angle quick mechanism used for on-load tap-changer |
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| CN (1) | CN102024552B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448558B (en) * | 2015-12-21 | 2017-12-01 | 湖南德忠开关电气有限公司 | Spring energy storage device |
| CN105563115A (en) * | 2016-03-03 | 2016-05-11 | 浙江豪顿电气有限公司 | Mounting method for output voltage automatic regulator of transformer tapping switch |
| CN109449018B (en) * | 2018-12-23 | 2023-11-07 | 辽宁金立电力电器有限公司 | On-load tap-changer |
| CN111863474B (en) * | 2020-07-14 | 2023-03-28 | 上海华明电力设备制造有限公司 | Conversion mechanism of on-load tap-changer |
| CN112259389B (en) * | 2020-10-14 | 2023-06-20 | 上海华明电力设备制造有限公司 | Operating mechanism of unidirectional on-load tap-changer |
| CN116666149B (en) * | 2023-07-21 | 2023-12-22 | 深圳市超越电气技术有限公司 | Vacuum circuit breaker |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891237Y (en) * | 2006-02-20 | 2007-04-18 | 上海华明电力设备制造有限公司 | Linear reciprocating trigger-type quick-release mechanism in on-load tapping switch |
| CN2938366Y (en) * | 2006-07-31 | 2007-08-22 | 上海华明电力设备制造有限公司 | Switchover mechanism of on-load tap changer |
| CN201489980U (en) * | 2009-09-15 | 2010-05-26 | 上海华明电力设备制造有限公司 | Rack large-corner quick mechanism of on-load tap changer |
-
2009
- 2009-09-15 CN CN200910195679A patent/CN102024552B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2891237Y (en) * | 2006-02-20 | 2007-04-18 | 上海华明电力设备制造有限公司 | Linear reciprocating trigger-type quick-release mechanism in on-load tapping switch |
| CN2938366Y (en) * | 2006-07-31 | 2007-08-22 | 上海华明电力设备制造有限公司 | Switchover mechanism of on-load tap changer |
| CN201489980U (en) * | 2009-09-15 | 2010-05-26 | 上海华明电力设备制造有限公司 | Rack large-corner quick mechanism of on-load tap changer |
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| Publication number | Publication date |
|---|---|
| CN102024552A (en) | 2011-04-20 |
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Free format text: FORMER OWNER: SHANGHAI HUAMING HIGH-VOLTAGE ELECTRICAL R+D CO., LTD. Effective date: 20141211 |
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Effective date of registration: 20141211 Address after: 200333 Shanghai city Putuo District No. 977 in the same way Patentee after: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai Address before: 200333 Shanghai city Putuo District No. 977 in the same way Patentee before: Huaming Power Equipment Manufacturing Co., Ltd., Shanghai Patentee before: Shanghai Huaming High-Voltage Electrical R&D Co., Ltd. |