CN203288447U - Quick grounding spring mechanism provided with disk spring buffer unit - Google Patents
Quick grounding spring mechanism provided with disk spring buffer unit Download PDFInfo
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- CN203288447U CN203288447U CN2013203280359U CN201320328035U CN203288447U CN 203288447 U CN203288447 U CN 203288447U CN 2013203280359 U CN2013203280359 U CN 2013203280359U CN 201320328035 U CN201320328035 U CN 201320328035U CN 203288447 U CN203288447 U CN 203288447U
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- buffer unit
- gear
- output shaft
- spring
- spring buffer
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Abstract
The utility model provides a quick grounding spring mechanism provided with a disk spring buffer unit and solves problems of short service lifetime, short maintenance period and environmental pollution caused by buffer oil leakage of a quick grounding switch in the prior art. The quick grounding spring mechanism provided with the disk spring buffer unit includes an electric motor, a gear pair and a buffer mechanism limited in a housing of a quick grounding switch cabinet. The technical essentials are that the buffer mechanism includes a disk spring buffer unit, an energy storage spring buffer unit, a rotary output shaft limited on the housing, a crank shaft having an end fixed on the output shaft, a worm gear fixed on the output shaft and a limit block hinged on the output shaft; a first gear of the gear pair is fixed together with a drive shaft of the electric motor concentrically, a second gear of the gear pair is fixed on a worm fitted with the worm gear and rotating together with the second gear concentrically; the energy storage spring buffer unit includes a first core rod having the bottom hinged in the housing and a crank hinged with a pin roll capable of pushing the limit block to rotate along the output shaft. The quick grounding spring mechanism provided with the disk spring buffer unit is skillful in structural design, stable, safe and reliable in operation, simple and convenient to maintain and low in maintenance cost.
Description
Technical field
The utility model relates to the high voltage switchgear field, is a kind of rapid grounding spring mechanism with dish spring buffer unit specifically.Be mainly used in the short-circuit protection of GIS.
Background technology
Development along with electrical network, totally enclosed type high-voltage combined electrical apparatus (GIS) uses more and more extensive in electrical network, for meet the user to GIS is high in reliability, volume is little, quality gently reaches the requirement of the aspect such as non-maintaining, external GIS has generally used isolating switch (DS)/earthed switch (ES) to adopt three station structures, be the DS-ES combined structure, three stations are combined floodgate-isolation-ground connection.Three-station is combined into an integral body with DS and ES, the public moving contact of DS and ES, a middle contact and an operating mechanism tri-station isolating switch make equipment overall structure simplify, size significantly diminishes, therefore can omit the electric operation interlocking between DS and ES, make the GIS operational reliability be greatly improved.Existing three-station electric operation mechanism, by controlling simultaneously isolating switch and earthed switch, is realized breaking-closing operating.
Spring mechanism will produce very large impulsive force when breaking-closing operating, and the one, high voltage switchgear is formed mechanical shock destroy, the 2nd, the contact closing rebound causes contact unstable, affects the reliably working of high speed grounding switch, even GIS is burnt when serious.Therefore, in the rapid grounding spring operating mechanism, buffer unit must be set, what use in high-voltage high-speed earthed switch spring operating mechanism at present is the oil buffering.Namely be full of buffering oil in buffer unit, but its useful life is low, easily produces leakage of oil, after oil mass reduced, the output angle of mechanism can change, and causes the overshoot of bus contact, damaged contact.After oil flow to end, the output angle of mechanism can significantly increase and seriously exceed normal range (NR) when buffering, if close this moment, closed the bus contact and can cause contact badly damaged, even scrapped.In addition, after oil bumper lost efficacy, close the bus contact can produce sizable beating while closing, and produced electric arc and caused explosion accident.Therefore, need badly existing rapid grounding spring mechanism with dish spring buffer unit is improved.
The utility model content
The purpose of this utility model is to provide a kind of rapid grounding spring mechanism with dish spring buffer unit, has solved in prior art that high speed grounding switch useful life is low, maintenance period is short, buffering oil is revealed environmental pollution problem.Its structural design is ingenious, and is stable, safe and reliable, easy maintenance, and the cost of overhaul is low, drives the rapid ground connection of high speed grounding switch during the GIS short circuit, avoids security incident.
The technical scheme that the utility model adopts is: it comprises spacing motor in high speed grounding switch cabinet housing, gear pair, buffer gear is characterized in that: described buffer gear comprises the fixing crank of dish spring buffer unit, energy-stored spring buffer unit, spacing rotating output shaft, an end and output shaft on housing, be fixed on worm gear on output shaft, be hinged on the guide vane end stop on output shaft; The first gear of gear pair is coaxial fixing with the driving shaft of motor, on the worm screw that the second gear is fixed on worm gear coordinates of gear pair, and worm screw and the second gear coaxial rotation; The energy-stored spring buffer unit comprises first core bar of bottom-hinged in housing, and the first core bar is socketed with energy-stored spring outward, and the other end of the first core bar top and crank is hinged by bearing pin, and this bearing pin promotes guide vane end stop and rotates around output shaft.
Described guide vane end stop is the polygon along the extension of output shaft direction symmetrical centered by output shaft.
Described polygon is triangle.
Described dish spring buffer unit comprises the support that is fixed in housing, vertically is fixed on sleeve pipe on support; Be socketed with reciprocating core bar in sleeve pipe in sleeve pipe, the core bar top is provided with the block for limiting boot displacement, the core bar middle part is respectively equipped with boss, limiting plate with bottom, be provided with between boss and sleeve pipe and be socketed in the outer back-moving spring of the second core bar, be provided with disk spring between limiting plate and sleeve bottom, limiting plate has the sphere contact.
The advantage that the utlity model has and positive technique effect are: adopt the two elastic force of butterfly spring and energy-stored spring to promote the output shaft rotation, rotary torsion is higher, and rotary speed is faster.Dish spring buffer core bar end is provided with block, makes casing limit on dish spring buffer core bar.Adopt the large butterfly spring impact-absorbing power of the little elastic force of volume, having substituted tradition has buffer, has avoided the output angle that causes because of leakage of oil to change, the security incident of having avoided leakage of oil to cause.Compressed energy-storage spring when back-moving spring and disk spring eject dish spring buffer core bar, compress disk spring and back-moving spring once more when energy-stored spring is upspring.Buffer structure is simple and practical, has extended the time between overhauls(TBO), and long service life has reduced production cost.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model dish buffer unit structure schematic diagram;
Structural representation when Fig. 3 is the operating mechanism separating brake;
Structural representation when Fig. 4 is the operating mechanism combined floodgate.
Sequence number explanation in figure: 1 aviation plug, 2 contactors, 3 auxiliary switches, 4 worm screws, 5 worm gears, 6 gear pairs, 7 motor, 8 first dish spring buffer units, 9 cranks, 10 output shafts, 11 guide vane end stops, 12 bearing pins, 13 first core bars, 14 energy-stored springs, 15 blocks, 16 back-moving springs, 17 supports, 18 sleeve pipes, 19 disk springs, 20 second core bars, 21 second dish spring buffer units.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1 ~ 4.Should comprise spacing contactor 2, auxiliary switch 3, motor 7 in high speed grounding switch cabinet housing with the rapid grounding spring mechanism of dish spring buffer unit, gear pair 6, the parts such as buffer gear, housing are provided with aviation plug 1 outward.Buffer gear comprises crank 9 that dish spring buffer unit (first, second dish spring buffer unit 8,21), energy-stored spring 14 buffer units, spacing rotating output shaft 10, an end and output shaft 10 on housing fix by spline, be fixed on worm gear 5 on output shaft 10, be hinged on the guide vane end stop 11 that passes through first, second dish spring buffer unit 8,21 bufferings on output shaft 10, and guide vane end stop 11 is symmetrically centered by output shaft 10 along output shaft 10 directions, to extend isosceles triangles.The first gear of gear pair 6 is coaxial fixing with the driving shaft of motor 7, and the second gear of gear pair 6 is fixed on the worm screw 4 that coordinates with worm gear 5, worm screw 4 and the second gear coaxial rotation.The energy-stored spring buffer unit comprises first core bar 13 of bottom-hinged in housing, the first outer energy-stored spring 14 that is socketed with of core bar 13, the other end of the first core bar 13 tops and crank 9 is hinged by bearing pin 12, and bearing pin 12 promotes guide vane end stop 11 around output shaft 10 rotations (clockwise or counterclockwise).Dish spring buffer unit comprises the support 17 that is fixed in housing, vertically is fixed on sleeve pipe 18 on support 17.Be socketed with in sleeve pipe 18 at interior reciprocating the second core bar 20 of sleeve pipe 18, the second core bar 20 tops are provided with the block 15 for limiting boot 18 displacements, the second core bar 20 middle parts and bottom are respectively equipped with boss, limiting plate, limiting plate has the sphere contact, be provided with between boss and sleeve pipe 18 and be socketed in the second outer back-moving spring 16 of core bar 20, be provided with disk spring 19 between limiting plate and sleeve pipe 18 bottoms.Adopt helical spring (energy-stored spring 14 and back-moving spring 16) and the large disk spring 19 impact-absorbing power of the little elastic force of volume, substitute oil bumper, avoided the output angle that causes because of leakage of oil to change, the security incident of having avoided leakage of oil to cause.
Operation principle is as follows: as shown in Figure 3, switch is in gate-dividing state.When needs closed a floodgate, auxiliary switch 2 provided reclosing command, and motor 7 rotations drive worm screw 4 rotations by gear pair 6, and the worm gear 5 that worm screw 4 drivings match with it drives output shaft 10 and rotates counterclockwise (from Fig. 3 direction).Crank 9 rotates counterclockwise and makes the first downward compressed energy-storage spring 14 of core bar 13, the first dish spring buffer unit 8 discharges elastic force simultaneously, accelerate output shaft 10 rotations, the sphere contact ejects downwards and promotes triangle guide vane end stop 11(left side) be rotated counterclockwise with output shaft 10, when crank 9 is in vertical position, energy-stored spring 14 is compressed fully.Worm gear 5 continues to be rotated counterclockwise, this moment, energy-stored spring 14 discharged elastic force, promoting guide vane end stop 11 by bearing pin 12 is rotated counterclockwise, make the contact of guide vane end stop 11 right-hand members and the second dish spring buffer unit 21, compress simultaneously disk spring and the back-moving spring of the second dish spring buffer unit 21, realize close a floodgate (position as shown in Figure 4).
When the needs separating brake, auxiliary switch 2 provides the separating brake instruction, and motor 7 rotations drive worm screw 4 rotations by gear pair 6, and the worm gear 5 that worm screw 4 drivings match with it drives output shaft 10 and clockwise rotates (from Fig. 4 direction).Crank 9 clockwise rotates and makes the first downward compressed energy-storage spring 14 of core bar 13, the second dish spring buffer unit 8 discharges elastic force simultaneously, accelerate output shaft 10 rotations, the sphere contact ejects downwards and promotes triangle guide vane end stop 11(right side) turn clockwise with output shaft 10, when crank 9 is in vertical position, energy-stored spring 14 is compressed fully.Worm gear 5 continues to turn clockwise, this moment, energy-stored spring 14 discharged elastic force, promoting guide vane end stop 11 by bearing pin 12 turns clockwise, make the contact of guide vane end stop 11 left ends and the first dish spring buffer unit 8, compress simultaneously disk spring and the back-moving spring of the first dish spring buffer unit 8, realize separating brake (position as shown in Figure 3).
Claims (4)
1. rapid grounding spring mechanism with dish spring buffer unit, it comprises spacing motor in high speed grounding switch cabinet housing, gear pair, buffer gear is characterized in that: described buffer gear comprises the fixing crank of dish spring buffer unit, energy-stored spring buffer unit, spacing rotating output shaft, an end and output shaft on housing, be fixed on worm gear on output shaft, be hinged on the guide vane end stop on output shaft; The first gear of gear pair is coaxial fixing with the driving shaft of motor, on the worm screw that the second gear is fixed on worm gear coordinates of gear pair, and worm screw and the second gear coaxial rotation; The energy-stored spring buffer unit comprises first core bar of bottom-hinged in housing, and the first core bar is socketed with energy-stored spring outward, and the other end of the first core bar top and crank is hinged by bearing pin, and this bearing pin promotes guide vane end stop and rotates around output shaft.
2. the rapid grounding spring mechanism with dish spring buffer unit according to claim 1 is characterized in that: described guide vane end stop is the symmetrical polygon that extends along the output shaft direction centered by output shaft.
3. the rapid grounding spring mechanism with dish spring buffer unit according to claim 2, it is characterized in that: described polygon is triangle.
4. the rapid grounding spring mechanism with dish spring buffer unit according to claim 1 and 2 is characterized in that: described dish spring buffer unit comprises the support that is fixed in housing, vertically is fixed on sleeve pipe on support; Be socketed with reciprocating core bar in sleeve pipe in sleeve pipe, the core bar top is provided with the block for limiting boot displacement, the core bar middle part is respectively equipped with boss, limiting plate with bottom, be provided with between boss and sleeve pipe and be socketed in the outer back-moving spring of the second core bar, be provided with disk spring between limiting plate and sleeve bottom, limiting plate has the sphere contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203280359U CN203288447U (en) | 2013-06-08 | 2013-06-08 | Quick grounding spring mechanism provided with disk spring buffer unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203280359U CN203288447U (en) | 2013-06-08 | 2013-06-08 | Quick grounding spring mechanism provided with disk spring buffer unit |
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| Publication Number | Publication Date |
|---|---|
| CN203288447U true CN203288447U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203280359U Expired - Fee Related CN203288447U (en) | 2013-06-08 | 2013-06-08 | Quick grounding spring mechanism provided with disk spring buffer unit |
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| CN (1) | CN203288447U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444440A (en) * | 2019-08-16 | 2019-11-12 | 河南省三禾电气有限公司 | A kind of pole-mounted circuit breaker |
-
2013
- 2013-06-08 CN CN2013203280359U patent/CN203288447U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444440A (en) * | 2019-08-16 | 2019-11-12 | 河南省三禾电气有限公司 | A kind of pole-mounted circuit breaker |
| CN110444440B (en) * | 2019-08-16 | 2021-06-08 | 河南省三禾电气集团有限公司 | Pole-mounted circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20190608 |