CN107154318B - A kind of protection circuit of spring operating mechanism one-way clutch and guard method - Google Patents
A kind of protection circuit of spring operating mechanism one-way clutch and guard method Download PDFInfo
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- CN107154318B CN107154318B CN201710385693.4A CN201710385693A CN107154318B CN 107154318 B CN107154318 B CN 107154318B CN 201710385693 A CN201710385693 A CN 201710385693A CN 107154318 B CN107154318 B CN 107154318B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3005—Charging means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/54—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts
- H01H3/58—Mechanisms for coupling or uncoupling operating parts, driving mechanisms, or contacts using friction, toothed, or other mechanical clutch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
- H01H2003/266—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor having control circuits for motor operating switches, e.g. controlling the opening or closing speed of the contacts
Abstract
The present invention discloses protection circuit and the guard method of a kind of breaker spring operating mechanism one-way clutch; pass through the design to control circuit; reduce the revolving speed and the revolving speed relative difference before energy storage axle reversion that motor operation is transmitted to energy storage axle; mitigate abrasion of the roller of clutch to Internal and external cycle; realize the protection to one-way clutch; the service life for extending mechanism, improves the reliability of spring operating mechanism, ensures the reliability service of electric system.
Description
[technical field]
The present invention relates to breaker spring operating mechanism technical field, in particular to a kind of breaker spring operating mechanism is used
The protection circuit of one-way clutch and guard method.
[background technique]
As one of breaker driving mechanism, structure mainly includes storage transmission system, closes a floodgate and move spring operating mechanism
Power and transmission system, energy storage keep combined floodgate tripping system, closing a floodgate keeps separating brake tripping system, separating brake dynamical system and auxiliary system
Deng six big systems, operating principle, which is motor, gives switching-in spring energy storage by storage transmission system, fills at the end of energy storage through clutch
The reliable separation for realizing energy storage axle and transmission system is set, and keeps combined floodgate tripping system to carry out switching-in spring energy guarantor by energy storage
It holds；When breaker needs to carry out feed motion, energy storage keeps combined floodgate tripping system under the action of external force or electromagnetic force, carries out
Trip action, the switching-in spring energy release of energy storage, on the one hand realizes the closing operation of breaker, on the other hand gives tripping spring
Energy storage is carried out, and keeps separating brake tripping system to keep the closing position of breaker by closing a floodgate, while dividing energy storage
Lock spring carries out energy holding；When breaker needs to carry out separating brake movement, closes a floodgate and keep separating brake tripping system in external force or electricity
Under the action of magnetic force, trip action is carried out, the sub-switching operation of breaker is realized in the tripping spring energy release of energy storage.
When spring operating mechanism states energy storage, combined floodgate and separating brake movement in realization, it is required to corresponding control protection electric circuit
The components for realizing above-mentioned movement are controlled and protected.Energy storage control and protection circuit include following component: contactor,
Electrothermal relay, the time relay, auxiliary relay, travel switch and resistance etc., wiring diagram is general as shown in Figure 1, its movement is former
Reason is all contact closures of control circuit, and after being powered up, contactor coil is powered, and contactor normally opened contact closure is electronic
Machine starts to act, and drives switching-in spring to carry out energy storage by transmission system, realizes energy storage axle by arrangement of clutch after energy storage
With the clutch of transmission system, and the movement of travel switch contact realizes that energy storage control circuit is cut-off, and then motor circuit is disconnected
Electricity, stopping movement.In the process, if motor circuit occurs, electric current is excessive or too long (the i.e. energy storage of circuit conduction time
Overlong time), electrothermal relay or time relay movement are realized that motor circuit is cut-off, are protected to motor；It closes a floodgate back
Road includes following component: electromagnet, travel switch, auxiliary switch etc., and wiring diagram is general as shown in Figure 1, its operating principle is
Control circuit is all to open contact closure, and after being powered up, electromagnet coil power, electromagnet frizzen movement drives energy storage to protect
Hold the tripping of combined floodgate tripping system, the release of switching-in spring energy；Sub-gate circuit includes following component: electromagnet, auxiliary switch etc.,
Wiring diagram is general as shown in Figure 1, its operating principle, which is that control circuit is all, opens contact closure, after being powered up, electromagnetism iron wire
Circle is powered, and the movement of electromagnet frizzen, which drives to close a floodgate, keeps the tripping of separating brake tripping system, the release of tripping spring energy.
After the completion of closing operation, spring operating mechanism carries out stored energy operation immediately, is next time to switching-in spring compressed energy-storage
Closing operation is prepared, and wishes that energy storage axle is unidirectionally revolved always under the drive of switching-in spring and motor in the process
Turn, in order to prevent switching-in spring energy discharge when energy storage axle because impact caused by high speed rotation be transmitted to storage transmission system and
To motor, transmission system and motor are damaged, needed in energy storage axle or the installation one on its previous stage transmission shaft
One-way clutch realizes that energy storage axle and storage transmission system and motor are detached from, protects energy storage when the release of switching-in spring energy
Transmission system and motor are from impact failure；Breaker carries out closing operation in order to prevent simultaneously, motor circuit power-off
In the case of, switching-in spring releases energy latter end energy storage axle due to the effect of switching-in spring precompression, can transport to the opposite direction of direction of rotation
Dynamic (as shown in Fig. 6 dotted arrow direction), vibrates energy storage axle in equilbrium position, needs in energy storage axle or in its previous stage
One anti-reverse one-way clutch is installed again on transmission shaft, realizes the holding positioning that energy storage axle reversely rotates, switching-in spring is every
Primary energy is discharged, anti-reverse one-way clutch can all work.The switching-in spring release can after carry out stored energy operation immediately
Process started slowly if motor energization is later, and energy storage axle is it is possible that reversion, and motor operation is transmitted to energy storage at this time
The revolving speed relative difference of revolving speed and the energy storage axle reversion of axis can be very big, and the roller of one-way clutch will generate Internal and external cycle larger
Impact wear.In general, the operation lifetime of spring operating mechanism is required at 10,000 times or more, this impact wear accumulation effect
It will become serious after Ying Liu 7,000 times, one-way clutch may fail, thus to the reliability of spring operating mechanism
It substantially reduces, can not meet the operation lifetime requirement of spring operating mechanism.To solve the above-mentioned problems, general existing technical side
Method is the torque for increasing one-way clutch, certainly will will increase the size of one-way clutch, and then increase agency cost.
[summary of the invention]
The purpose of the present invention is to solve the above-mentioned problems, provides a kind of breaker spring operating mechanism one-way clutch
The guard method of device, by the design to control circuit, reduce motor operation be transmitted to energy storage axle revolving speed and energy storage axle it is anti-
Revolving speed relative difference before turning mitigates abrasion of the roller to Internal and external cycle of clutch, realizes the protection to one-way clutch, extends
The service life of mechanism improves the reliability of spring operating mechanism, ensures the reliability service of electric system.
A kind of protection circuit of spring operating mechanism one-way clutch, including motor circuit, Motor Control circuit
And protective loop and closing circuit and sub-gate circuit, wherein Motor Control circuit includes: normally-closed contact travel switch, connects
The contact sets of a pair of of normally-closed contact of tentaculum coil and auxiliary relay, above-mentioned component or component are at series circuit, the string
The parallel circuit being made of resistance R1 and auxiliary switch normally-closed contact group is further in series on connection circuit.
The resistance value of resistance R1 is equal to or more than the resistance value of contactor coil.
The angle range of auxiliary switch normally-closed contact group is 0~15 °.
The low level-one of supply voltage in the rated voltage ratio Motor Control circuit of the contactor.
The time relay, time relay contact linkage control contactor coil are connected on the contactor coil.
Motor circuit includes three groups of main contacts of contactor, electrothermal relay and motor, above-mentioned component or component
Contact sets connect at series circuit in both ends of power, wherein one end of motor is sequentially connected two groups of masters of electrothermal relay and contactor
One end of power supply is connected to behind contact, the other end of motor is sequentially connected another electrothermal relay and contactor remaining one
The other end of power supply is connected to after a main contacts.
The motor protection circuit includes the time relay, auxiliary relay, electrothermal relay and resistance, wherein when
Between the contact of relay, additional relay contacts and electrothermal relay form parallel circuit, formed with auxiliary relay and resistance
The coil of parallel circuit and auxiliary relay forms series circuit together；Motor Control series circuit and motor protection
Series circuit is simultaneously connected in DC power supply both ends, and contactor coil is connected to the time relay in parallel with additional relay contacts
On device.
Closing circuit includes closing coil, auxiliary switch normally-closed contact group and normally opened contact travel switch, above-mentioned component
Contact and the closing contact of console or control system form series circuit；Sub-gate circuit includes opening coil and auxiliary switch
The separating brake contact sets of normally opened contact group, the contact of above-mentioned component and console or control system are at series circuit；It closes a floodgate and connects
Circuit and separating brake series circuit composition parallel circuit connect in both ends of power.
The normally opened contact travel switch and normally-closed contact travel switch is connected in the energy storage axle of spring operating mechanism,
After spring energy-storage, while controlling normally opened contact travel switch and the movement of normally-closed contact travel switch；The auxiliary is opened
It closes normally opened contact group and auxiliary switch normally-closed contact group is connected on spring operating mechanism output shaft, spring operating mechanism output shaft
Control the movement of auxiliary switch normally opened contact group and auxiliary switch normally-closed contact group.
A kind of guard method of spring operating mechanism one-way clutch, when spring operating mechanism be connected to close a floodgate order open
When initiating is made, normally-closed contact travel switch contact connect, but in electromotor control circuit auxiliary switch normally-closed contact group a pair
Contact does not disconnect also, at this point, main noddle on contactor quick pick-up under the big suction of coil, realizes the fast of motor circuit
Quick access is logical；With the further rotation of energy storage axle, auxiliary switch normally-closed contact is disconnected, and resistance R1 and contactor coil are common at this time
The voltage of power supply is undertaken, the voltage applied on contactor meets the pick-up voltage of contactor main contacts, and main contacts keeps being attracted shape
State, realizes the lasting energization of motor circuit, and the time that motor is powered guarantees that motor is transmitted to the revolving speed of gear shaft Z5 and chases after
By the inertia revolving speed of upper energy storage axle.
Compared with prior art, the present invention at least has the advantages that the present invention goes here and there in Motor Control circuit
It is associated with the parallel circuit being made of resistance R1 and auxiliary switch normally-closed contact group, in this way, when spring operating mechanism is being connected to combined floodgate
When order starts movement, normally-closed contact travel switch contact is connected, but auxiliary switch normally-closed contact group in electromotor control circuit
A pair of contact do not disconnect also, at this point, the voltage applied on contactor coil be greater than contactor coil specified pick-up voltage, connect
Tentaculum main contact quick pick-up under the big suction of coil, realizes the quick-make of motor circuit, with energy storage axle
Further rotation, auxiliary switch normally-closed contact disconnect, and resistance R1 and contactor coil become series relationship at this time, resistance R1 and connect
The voltage of tentaculum coil shared power supply, the voltage applied on contactor coil reduce, and meet the actuation of contactor main contacts
Voltage, main contacts keep attracting state, realize the lasting energization of motor circuit, to realize the protection to clutch.
[Detailed description of the invention]
Fig. 1 is schematic diagram before control and protection circuits improvement according to the present invention；
Fig. 2 is schematic diagram after control and protection circuits improvement according to the present invention；
Fig. 3 is spring operating mechanism storage transmission system schematic cross-sectional view of the invention；
Fig. 4 is spring operating mechanism storage transmission system section view partial enlarged view of the invention；
Fig. 5 is schematic diagram after spring operating mechanism switching-in spring energy storage of the invention；
Fig. 6 is that spring operating mechanism switching-in spring of the invention releases schematic diagram after energy；
Description of symbols:
In Fig. 1, Fig. 2, mark number word and alphabetical meaning as follows:
DC2K. direct current power source voltage 2K；52a. auxiliary switch normally opened contact group；52b. auxiliary switch normally-closed contact group；
52C. closing coil；52T. opening coil；SP1. normally opened contact travel switch；SP4. normally-closed contact travel switch；R1. resistance；
R2. resistance；K88. contactor；K49. electrothermal relay；K49X. auxiliary relay；The 48T. time relay；M. motor；C1~
C4. conducting wire label；D1~D3. conducting wire label；G1~G5. conducting wire label；W1~W7. conducting wire label；52BN1. conducting wire label；
52BP1. conducting wire label；NC. normally-closed contact；NO. normally opened contact；Arabic numerals are component contact label itself.
In Fig. 3, Fig. 4, Fig. 5, Fig. 6, label numerical significance is as follows:
1. gear wheel；2. energy storage axle；3. gear shaft Z5；4, bearing；5. gear shaft Z3；6. gear；7. motor；8. bracket；
9. gear Z4；10a. one-way clutch a；10b. one-way clutch b；11. retainer；12. cam；13. hanging spring connecting lever；14. hanging
Spring pin；15. switching-in spring pull rod；16. switching-in spring；17. spacer pin；18 clutch cams.
[specific embodiment]
The purpose of the present invention is to solve the above-mentioned problems, provides a kind of breaker spring operating mechanism one-way clutch
The protection circuit of device and guard method reduce the revolving speed that motor operation is transmitted to energy storage axle by the design to control circuit
Revolving speed relative difference with before energy storage axle reversion, mitigates abrasion of the roller to Internal and external cycle of clutch, realizes to one-way clutch
Protection, extend the service life of mechanism, improve the reliability of spring operating mechanism, ensure the reliability service of electric system.
Control circuit of the present invention does the above design, based on operating principle be: switching-in spring energy release after, motor control
Normally-closed contact travel switch contact closure in major loop processed, auxiliary switch normally-closed contact also in on-state, connect at this time at this time
Tentaculum coil institute's making alive is control circuit supply voltage, since the voltage rating of contactor coil is lower than control circuit power supply electricity
The suction of pressure, contactor coil is directly proportional to alive square of the institute in coil both ends, and probe of contactor is made in the big suction of coil
With lower quick pick-up, the quick-make of motor circuit is realized；When auxiliary switch normally-closed contact release after, increased resistance with connect
Tentaculum coil becomes series circuit, and increased resistance is equal to or slightly greater than the resistance value of contactor coil, at this time contactor line
The voltage at circle both ends is equal to or slightly less than voltage rating, i.e. contacts of contactor meets pick-up voltage, and contact keeps attracting state, real
The lasting electrification of existing motor circuit.
Control circuit of the present invention does the above design, it is therefore an objective to improve the initial voltage of contactor coil in control circuit, increase
The suction that big contactor coil generates shortens the actuation time that main noddle on contactor is attracted, to make motor quick acting, band
Dynamic energy storage axle continues stored energy operation after the completion of combined floodgate；It is to pass through storage transmission system that motor, which carries out quick acting,
Movement is transmitted to the outer ring of clutch, energy storage axle is communicated rotational motion to by clutch roller again, makes clutch outer
Movement and the movement velocity relative difference of energy storage axle are maintained at smaller value as far as possible, even if on the revolving speed " chasing " of clutch outer simultaneously
Slightly larger than the revolving speed of energy storage axle, can thus mitigate clutch roller significantly to the impact wear of Internal and external cycle, realize to unidirectionally from
The protection of clutch improves the reliability level of mechanism.
With reference to the accompanying drawing and specific embodiment is described in further details a specific embodiment of the invention etc..
As shown in Figure 1, the general control circuit of the various movements of spring operating mechanism includes: Motor Control and protects back
Road, motor circuit, closing circuit and sub-gate circuit.
Electromotor control circuit of the invention include: normally-closed contact travel switch SP4, contactor K88 coil and auxiliary after
The contact sets of a pair of of normally-closed contact of electric appliance K49X, above-mentioned component or component are at series circuit, the series circuit enterprising one
Step is in series with the parallel circuit being made of one group of normally-closed contact of resistance R1 and auxiliary switch normally-closed contact group 52b, such as Fig. 2 institute
Show.The resistance value of resistance R1 should be equal to or slightly greater than the resistance value of contactor K88 coil.The effect of auxiliary switch normally-closed contact group 52b
0~15 ° of angular range.When contactor K88 type selecting, if electromotor control circuit supply voltage is direct current 2K, contactor K88
Voltage rating is selected as its rated voltage ratio control circuit supply voltage low level-one when K, i.e. contactor K88 type selecting.
Motor protection circuit includes: time relay 48T, auxiliary relay K49X, electrothermal relay K49 and resistance R2,
Wherein, the contact of time relay 48T, the normally opened contact of auxiliary relay K49X and electrothermal relay K49 form parallel circuit, so
The coil with the auxiliary relay K49X and resistance R2 parallel circuit formed and auxiliary relay K49X forms series connection together afterwards
Circuit.Electromotor control circuit is in parallel with motor protecting circuit to be followed by DC power supply both ends, and time relay 48T
Contact linkage control contactor K88 coil.
Motor circuit includes: the three groups of main contacts, electrothermal relay K49 and motor M of contactor K88, above-mentioned component
Or the contact sets of component connect at series circuit in both ends of power.Wherein, one end of motor M is sequentially connected electrothermal relay K49
With the one end for being connected to power supply after two groups of main contacts of contactor K88, the other end of motor M is sequentially connected another hot relay
The other end of power supply is connected to after the remaining main contacts of device K49 and contactor K88.
Closing circuit includes: closing coil 52C, auxiliary switch normally-closed contact group 52b and normally opened contact travel switch SP1,
The contact of above-mentioned component and console or the closing contact of control system form series circuit；Sub-gate circuit includes: separating brake line
Enclose 52T and auxiliary switch normally opened contact group 52a, the separating brake contact sets of the contact of above-mentioned component and console or control system
At series circuit；Combined floodgate series circuit and separating brake series circuit composition parallel circuit connect in both ends of power.
Spring operating mechanism is in original state, and when electromotor control circuit is powered, motor circuit is connected, motor M
Electrification starts movement and storage transmission system is driven to give switching-in spring 16 energy storage, and after energy storage, storage transmission system passes through connecting rod
Mechanism forces the normally-closed contact contact travel switch SP4 to disconnect, so that electromotor control circuit disconnects, motor M stopping movement, and together
When, storage transmission system forces the contact normally opened contact travel switch SP1 in closing circuit to be connected by link mechanism, grasps for spring
The feed motion of motivation structure is ready.If electric current is excessive in motor circuit in thermal energy storage process, the contact of electrothermal relay
97, throughput time is too long in 98 closures or motor circuit, and the contact 67,68 of the time relay is closed, and protective loop is equal
It can turn on, the electrification of auxiliary relay K49X coil, concatenated auxiliary relay K49X normally-closed contact is disconnected in electromotor control circuit
It opens, disconnects electromotor control circuit, the protection to motor M and spring operating mechanism is realized in motor M stopping movement.
When spring operating mechanism is received from the combined floodgate order of console or control system, closing circuit is connected, and is closed a floodgate
Coil 52C electrification, switching electromagnet frizzen drive energy storage that combined floodgate tripping system is kept to carry out trip action, realize breaker
Closing operation, while the normally-closed contact contact travel switch SP4 connect, motor M drive storage transmission system start to combined floodgate
16 energy storage of spring is prepared for closing operation next time, and spring operating mechanism output shaft is controlled by link mechanism and assisted
It switchs normally-closed contact group to open, auxiliary switch normally opened contact group closure；When spring operating mechanism is received from console or control
When the separating brake order of system, sub-gate circuit is connected, and opening coil 52T electrification, tripping electromagnet frizzen drives holding point of closing a floodgate
Lock tripping system carries out trip action, realizes the sub-switching operation of breaker, while spring operating mechanism output shaft passes through connecting rod machine
Structure controls auxiliary switch normally-closed contact group closure, and auxiliary switch normally opened contact group is opened.
As shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, by taking a kind of spring operating mechanism as an example, detailed description is set using control circuit
It counts to change the snap action characteristic of component, realizes the thought protected to one-way clutch.
As shown in figure 3, band moving gear (6) and gear shaft Z3 (5) are rotated, gear shaft Z3 (5) band after motor (7) is powered
Moving gear Z4 (9) rotation, gear Z4 (9) are rotated by one-way clutch a (10a) band movable gear shaft Z5 (3), gear shaft Z5 (3)
Gear wheel (1) and energy storage axle (2) rotation are driven, energy storage axle (2) is by hanging spring connecting lever (13), hanging bolt (14) and switching-in spring
Pull rod (15) gives switching-in spring (16) energy storage.
In thermal energy storage process, the rotation direction of each axis is as shown in Figure 5.Clutch cam after the completion of energy storage, in gear wheel (1)
(18) it works, is detached from gear shaft Z5 (3) and gear wheel (1) and energy storage axle (2), i.e. storage transmission system and energy storage axle (2)
It is detached from, while electromotor control circuit disconnects, powers off motor (7), stopping movement, switching-in spring (16) keeps closing in energy storage
Energy holding is carried out under the action of lock tripping system, is ready for the closing operation of breaker.
Spring operating mechanism carries out closing operation, as shown in fig. 6, after console or control system issue and close a floodgate order,
Energy storage keep combined floodgate tripping system carry out trip action, compression switching-in spring (16) energy release, drive energy storage axle (2) along
Energy storage direction (direction as shown in Fig. 6 solid arrow) rotates, and gear wheel (1) band movable gear shaft Z5 (3) in energy storage axle (2) turns
Dynamic, due to the presence of one-way clutch a (10a), gear shaft Z5 (3) and gear Z4 (9) are in clutch state, energy storage axle (2)
Elliptical gear is not delivered to motor (7) side, plays a protective role to the other axis and motor (7) of transmission system；Work as combined floodgate
Spring (16) energy is discharged into maximum, i.e., when switching-in spring (16) is elongated to maximum value, due to the effect of inertia of movement, energy storage axle
(2) it continues to rotate, switching-in spring (16) is compressed, until making zero stopping of energy storage axle (2) revolving speed, at this time energy storage axle (2) meeting
In the case where the switching-in spring (16) of compression drives, reversed (direction as shown in Fig. 6 dotted arrow) rotation, gear shaft Z5 (3) are carried out
It reversed (direction as shown in Fig. 6 dotted arrow) can be rotated in the case where gear wheel (1) drives, until one-way clutch b (10b) is acted as
With holding gear shaft Z5 (3) reversely rotates and stops.
Above-mentioned closing operation is directed to the case where power cut-off after motor (7) energy storage, electronic in practical implementation
Machine (7) power supply is always maintained at energization and spring operating mechanism has executed closing operation and carried out energy storage immediately, for next closing operation
It prepares, one-way clutch protection thought of the invention is illustrated as follows in conjunction with Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6.
The core of one-way clutch protection thought of the invention is to inhibit energy storage axle (2) to invert and reduce motor (7) turn
Revolving speed relative difference before the dynamic revolving speed for being transmitted to energy storage axle (2) and energy storage axle (2) reversion, i.e. realization motor (7) rotation pass
It is delivered on the revolving speed " chasing " of energy storage axle (2) and is slightly larger than the inertia revolving speed of energy storage axle (2), to mitigate one-way clutch a
Impact wear of the roller of (10a) to inner ring (gear shaft Z5 (3)) and outer ring (inner hole of gear Z4 (9)).
Start to act as shown in Fig. 2, spring operating mechanism is connected to combined floodgate order, by cam clearance and auxiliary switch contact angle
Degree influences, when the normally-closed contact travel switch contact (SP4) is connected, auxiliary switch normally-closed contact group in electromotor control circuit
The a pair of contact of (52b) does not disconnect also, and voltage rating is 2K for contactor (K88) the coil both ends institute making alive of K, due to contact
The suction of device (K88) coil and coil alive square of directly proportional, big suction of the main noddle on contactor in coil at this time in both ends
Power acts on lower quick pick-up, realizes the quick-make of motor circuit；With the further rotation of energy storage axle (2), auxiliary switch
Normally-closed contact (52b) disconnects, and resistance (R1) and contactor (K88) coil become series circuit, and resistance (R1) resistance value is equal to or slightly
Voltage greater than the resistance value of contactor (K88) coil, therefore contactor (K88) coil both ends is equal to or slightly less than voltage rating, full
Sufficient contactor (K88) main contacts pick-up voltage, main contacts keep attracting state, realize the lasting energization of motor circuit.It is electronic
The energization of machine circuit is more early, and the rotation that motor (7) is transmitted to gear shaft Z5 (3) is more early, on easier " chasing " and slightly larger
In the inertia revolving speed of energy storage axle (2), reduce one-way clutch a (10a) inner ring (gear shaft Z5 (3)) and outer ring (gear Z4 (9)
Inner hole) relative rotation speed difference, mitigate one-way clutch a (10a) roller to inner ring (gear shaft Z5 (3)) and outer ring (tooth
Take turns the inner hole of Z4 (9)) impact wear, protection one-way clutch a (10a) is unlikely to fail, and extends one-way clutch a
(10a) operation lifetime, improves the reliability level of mechanism.
In conclusion compared with the existing technology, the invention has the following advantages that
1) realize the protection to one-way clutch using the acting characteristic of component in control circuit, can effectively solve from
Clutch roller realizes the protection to one-way clutch, improves the reliability level of mechanism to the impact wear of Internal and external cycle.
2) the snap action characteristic for changing component by design control circuit, realizes the think of protected to one-way clutch
Think, not only can solve because torque increase causes clutch size to need corresponding the drawbacks of increasing, implementation mechanism reliable in action
The compactedness of premise flowering structure, and can be with the cost of reducing mechanism.
3) this thought can also apply in other mechanical structures for having similar demand, by device first in control circuit
The adjustment of part parameter (such as: resistance value, voltage rating etc.) with change the snap action characteristic of component fast realize it is different pre-
Phase effect.
The specific embodiment of one-way clutch guard method of the present invention, but the present invention are illustrated by specific embodiment above
It is not limited to this embodiment, can also be the other embodiments comprising feature of the present invention, such as:
In embodiment, electromotor control circuit supply voltage is direct current 2K, and contactor (K88) voltage rating is selected as K, but
Can be supply voltage is direct current K, and contactor (K88) voltage rating is selected as its specified electricity when K/2, i.e. contactor (K88) type selecting
The low level-one of pressure ratio control circuit supply voltage；According to expected test result, the ginseng of resistance (R1) and contactor (K88) is adjusted
Number realizes the purpose of protection one-time mechanical part.
Claims (9)
1. a kind of protection circuit of spring operating mechanism one-way clutch, it is characterised in that: including motor circuit, motor
Control loop and protective loop and closing circuit and sub-gate circuit, in which:
Motor Control circuit includes: normally-closed contact travel switch (SP4), contactor (K88) coil and auxiliary relay
(K49X) a pair of of normally-closed contact；Normally-closed contact travel switch (SP4), contactor (K88) coil and auxiliary relay (K49X)
A pair of of normally-closed contact form series circuit, be further in series with by resistance R1 and auxiliary switch normally-closed contact on the series circuit
The parallel circuit of group (52b) composition；
Motor circuit includes three groups of main contacts of contactor (K88), electrothermal relay (K49) and motor (M), contactor (K88)
Three groups of main contacts, electrothermal relay (K49) and motor (M) form series circuit, connect in both ends of power, wherein motor (M)
One end is sequentially connected one end that power supply is connected to after two groups of main contacts of electrothermal relay (K49) and contactor (K88), motor (M)
The other end be sequentially connected another electrothermal relay (K49) and the remaining main contacts of contactor (K88) after be connected to electricity
The other end in source.
2. a kind of protection circuit of spring operating mechanism one-way clutch according to claim 1, it is characterised in that: electricity
The resistance value for hindering R1 is equal to or more than the resistance value of contactor (K88) coil.
3. a kind of protection circuit of spring operating mechanism one-way clutch according to claim 1, it is characterised in that: auxiliary
The angle range for helping switch normally-closed contact group (52b) is 0~15 °.
4. a kind of protection circuit of spring operating mechanism one-way clutch according to claim 1, it is characterised in that: institute
The supply voltage for stating the rated voltage ratio Motor Control circuit of contactor (K88) is low.
5. a kind of protection circuit of spring operating mechanism one-way clutch according to claim 1, it is characterised in that: institute
It states and is connected with the time relay (48T) on contactor (K88) coil, the contact the time relay (48T) linkage control contactor
(K88) coil.
6. a kind of protection circuit of spring operating mechanism one-way clutch according to any one of claim 1 to 5,
Be characterized in that: the motor protection circuit includes the time relay (48T), auxiliary relay (K49X), electrothermal relay
(K49) and resistance R2, wherein the time relay (48T), the auxiliary relay contact (K49X) and electrothermal relay (K49) contact
Parallel circuit is formed, with the parallel circuit and auxiliary relay (K49X) of auxiliary relay (K49X) and resistance R2 composition
Coil forms series circuit together；Motor Control series circuit and motor protection series circuit are simultaneously connected in DC power supply two
End, and contactor (K88) coil be connected to the time relay (48T) of auxiliary relay (K49X) contact shunt on.
7. a kind of protection circuit of spring operating mechanism one-way clutch according to any one of claim 1 to 5,
Be characterized in that: closing circuit includes closing coil (52C), auxiliary switch normally-closed contact group (52b) and normally opened contact travel switch
(SP1)；Closing coil (52C), the contact of auxiliary switch normally-closed contact group (52b) and normally opened contact travel switch (SP1) and control
Platform processed or the closing contact of control system form series circuit；Sub-gate circuit includes that opening coil (52T) and auxiliary switch are normally opened
Contact sets (52a)；The contact of opening coil (52T) and auxiliary switch normally opened contact group (52a) and console or control system
Separating brake contact sets are at series circuit；Combined floodgate series circuit and separating brake series circuit composition parallel circuit connect in both ends of power.
8. a kind of protection circuit of spring operating mechanism one-way clutch according to claim 7, it is characterised in that: institute
The normally opened contact travel switch (SP1) and normally-closed contact travel switch (SP4) stated are connected to the power transmission of spring operating mechanism
In system, after spring energy-storage, while normally opened contact travel switch (SP1) and normally-closed contact travel switch (SP4) are controlled
Movement；The auxiliary switch normally opened contact group (52a) and auxiliary switch normally-closed contact group (52b) is connected to spring operating mechanism
On output shaft, spring operating mechanism output shaft controls auxiliary switch normally opened contact group (52a) and auxiliary switch normally-closed contact group
The movement of (52b).
9. a kind of guard method of spring operating mechanism one-way clutch, this method is based on one kind described in claim 7 or 8
The protection circuit of spring operating mechanism one-way clutch, it is characterised in that: when spring operating mechanism be connected to close a floodgate order open
When initiating is made, the normally-closed contact travel switch contact (SP4) is connected, but auxiliary switch normally-closed contact group in electromotor control circuit
The a pair of contact of (52b) does not disconnect also, at this point, main noddle on contactor quick pick-up under the big suction of coil, realizes electricity
The quick-make in motivation circuit；With the further rotation of energy storage axle, auxiliary switch normally-closed contact group (52b) is disconnected, electric at this time
The voltage of R1 and contactor coil shared power supply are hindered, the voltage applied on contactor meets the actuation electricity of contactor main contacts
Pressure, main contacts keep attracting state, realize the lasting energization of motor circuit, and the time that motor is powered guarantees motor transmitting
The inertia revolving speed of upper energy storage axle is chased to the revolving speed of gear shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385693.4A CN107154318B (en) | 2017-05-26 | 2017-05-26 | A kind of protection circuit of spring operating mechanism one-way clutch and guard method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385693.4A CN107154318B (en) | 2017-05-26 | 2017-05-26 | A kind of protection circuit of spring operating mechanism one-way clutch and guard method |
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| Publication Number | Publication Date |
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| CN107154318A CN107154318A (en) | 2017-09-12 |
| CN107154318B true CN107154318B (en) | 2019-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710385693.4A Active CN107154318B (en) | 2017-05-26 | 2017-05-26 | A kind of protection circuit of spring operating mechanism one-way clutch and guard method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994575B (en) * | 2017-12-23 | 2020-10-09 | 中国西电电气股份有限公司 | Secondary circuit of high-voltage circuit breaker |
| CN113113270B (en) * | 2021-04-14 | 2022-09-27 | 西安西电开关电气有限公司 | Closing keeping and opening tripping system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203325790U (en) * | 2013-06-24 | 2013-12-04 | 山东兴驰高压开关有限公司 | GIS circuit breaker |
| EP3190602A1 (en) * | 2014-09-03 | 2017-07-12 | Hitachi Industrial Equipment Systems Co., Ltd. | Electromagnetic contactor and power conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10255627A (en) * | 1997-03-12 | 1998-09-25 | Yazaki Corp | Relay drive circuit |
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2017
- 2017-05-26 CN CN201710385693.4A patent/CN107154318B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203325790U (en) * | 2013-06-24 | 2013-12-04 | 山东兴驰高压开关有限公司 | GIS circuit breaker |
| EP3190602A1 (en) * | 2014-09-03 | 2017-07-12 | Hitachi Industrial Equipment Systems Co., Ltd. | Electromagnetic contactor and power conditioner |
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| CN107154318A (en) | 2017-09-12 |
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Effective date of registration: 20221229 Address after: No.24, gazelle Valley, high tech Zone, Xi'an, Shaanxi 710077 Patentee after: XI'AN XD HIGH VOLTAGE SWITCHGEAR OPERATING MECHANISM CO.,LTD. Patentee after: CHINA XD ELECTRIC Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an province high tech Zone No. 7 Tang Xing Lu Patentee before: CHINA XD ELECTRIC Co.,Ltd. |