CN104143485A - Single-phase operating mechanism and breaker using same - Google Patents
Single-phase operating mechanism and breaker using same Download PDFInfo
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- CN104143485A CN104143485A CN201310297573.0A CN201310297573A CN104143485A CN 104143485 A CN104143485 A CN 104143485A CN 201310297573 A CN201310297573 A CN 201310297573A CN 104143485 A CN104143485 A CN 104143485A
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Abstract
The invention relates to a single-phase operating mechanism and a breaker using the same. The single-phase operating mechanism comprises a screw rod and nut mechanism which is provided with a torque input end and a linear motion output end used for mounting a corresponding movable contact, the single-phase operating mechanism further comprises at least one drive motor arranged on the periphery of the linear motion output end, and the power output shaft of the drive motor is in transmission connection with the torque input end through a transmission structure. According to the single-phase operating mechanism, the complex degree of the structure of the driven motor can be lowered.
Description
Technical field
The present invention relates to field of circuit breakers, relate in particular to a kind of single-phase operating mechanism and use the circuit breaker of this single-phase operating mechanism.
Background technology
Primary cut-out is most important switchgear in electric power system, is undertaking the dual role of control and protection circuit, and the quality of its performance is one of key factor determining electric power system safety work.And the repertoire of primary cut-out is all embodied in deciliter action of dynamic and static contact, a deciliter action for dynamic and static contact realizes by operating mechanism, operating mechanism is the important component part of circuit breaker, it is the critical component that determines circuit breaker performance, the quality of its performance directly has influence on the technical performance of circuit breaker, so the functional reliability of circuit breaker depends on the Reliability of Microprocessor of operating mechanism to a great extent.
Because the requirement of the job specification of circuit breaker own makes its operating mechanism require to complete its operating process in millisecond, and this set of system being comprised of component of machine completely goes to realize, in fact to require be very high.From fault statistics numeral international, state's inner breaker, mechanical breakdown is in the great majority, up to 70% of total failare, therefore, today at circuit breaker to high voltage, large capacity, high reliability development, in order to meet the requirement of electric power system to high reliability, be necessary to study the operating mechanism that a kind of volume is little, simple in structure and motion process is controlled, for this reason, electric motor type operating mechanism is widely used in circuit breaker gradually.The Chinese patent literature that existing electric motor type operating mechanism is CN1416585A as publication number " circuit-breaker and the equipment that uses this circuit breaker, purposes and method ", this circuit-breaker comprises that three-phase contact assembling that left and right is set up in parallel and three assemble corresponding single-phase operating mechanism with each phase contact respectively, each contact assembling includes fixed contact and moving contact, single-phase operating mechanism comprises leading screw, screw mechanism, leading screw, the leading screw of screw mechanism forms leading screw, the linearly operating output of screw mechanism, leading screw, the screw of screw mechanism forms leading screw, the torque input end of screw mechanism, each moving contact is assemblied in respectively on corresponding leading screw, single-phase operating mechanism also comprises the drive motors that clutch end is coaxially set with corresponding screw, drive motors is servomotor or the controlled swing angle electric of output angle, the rotor of drive motors is fixedly connected with corresponding screw coaxial line, in the rotor of each drive motors, all offer vertically and supply corresponding leading screw reciprocating centre bore vertically.The problem that existing this single-phase operating mechanism exists is: 1, because the rotor of drive motors is coaxially set with corresponding screw, cause to arrange in the inside of rotor and supply leading screw reciprocating centre bore vertically, this has just increased the complex structure degree of drive motors greatly, the drive motors of cash purchase can not directly be used, must could be for circuit breaker to drive motors transformation, the improvement cost of drive motors is very high, in addition, setting due to centre bore, in order to guarantee original drive motors, can also export the output torque of equal size, just must increase the radial and axial motor size of original drive motors, the physical dimension of drive motors also increases greatly, further increased the cost of manufacture of drive motors, 2, the output torque of drive motors cannot adapt to the three-phase breaker of 126Kv above, this is because the particularity of the drive motors of its use, rising along with electric pressure, the output torque of required drive motors is larger, the divide-shut brake speed of circuit breaker also needs to improve thereupon simultaneously, correspondence requires the rotating speed of drive motors also faster, so just causes the manufacturing cost of drive motors sharply to increase.
Summary of the invention
The object of the present invention is to provide a kind of single-phase operating mechanism that can reduce drive motors complex structure degree; The present invention also aims to provide a kind of circuit breaker that uses this single-phase operating mechanism.
In order to address the above problem, in the present invention, the technical scheme of single-phase operating mechanism is:
Single-phase operating mechanism, comprise leading screw, screw mechanism, leading screw, screw mechanism have torque input end and for the linearly operating output of corresponding moving contact is installed, single-phase operating mechanism also comprises that at least one tablecloth is placed in the drive motors of described linearly operating output periphery, and the power output shaft of drive motors is in transmission connection by drive mechanism and described torque input end.
The axis of movement of the power output shaft of described drive motors and described linearly operating output be arranged in parallel, and the power output shaft of drive motors is in transmission connection by cylindricality gear transmission structure and described torque input end.
Described cylindricality gear transmission structure comprises driven stud wheel and the active stud wheel of the transmission of intermeshing, driven stud wheel coaxial line is fixedly arranged on described torque input end, and described active stud wheel coaxial line is in transmission connection on the power output shaft of described drive motors.
The vertical setting of axis of movement of the power output shaft of described drive motors and described linearly operating output, the clutch end of drive motors is in transmission connection by Bevel Gear Transmission structure and described torque input end, Bevel Gear Transmission structure comprises driven wheel of differential and the drive bevel gear of the transmission of intermeshing, driven wheel of differential coaxial line is fixedly arranged on described torque input end, and described drive bevel gear coaxial line is in transmission connection on the power output shaft of described drive motors.
Described drive motors has at least two, and each drive motors is circumferentially evenly arranged around described torque input end.
In the present invention, the technical scheme of circuit breaker is:
Circuit breaker, the three-phase contact assembling that comprises operating mechanism and be set up in parallel, each phase contact assembling includes fixed contact and moving contact, operating mechanism comprises that three are assembled corresponding single-phase operating mechanism with each phase contact respectively, described single-phase operating mechanism comprises leading screw, screw mechanism, leading screw, screw mechanism has torque input end and for the linearly operating output of corresponding moving contact is installed, each single-phase operating mechanism also includes the drive motors that at least one tablecloth is placed in line correspondence action output periphery, the power output shaft of drive motors is in transmission connection with corresponding torque input end by each self-corresponding drive mechanism.
The axis of movement of the power output shaft of the drive motors in each single-phase operating mechanism and line correspondence action output be arranged in parallel, and the power output shaft of drive motors is in transmission connection by cylindricality gear transmission structure and described torque input end.
Described cylindricality gear transmission structure comprises driven stud wheel and the active stud wheel of the transmission of intermeshing, driven stud wheel coaxial line is fixedly arranged on corresponding torque input end, and described active stud wheel coaxial line is in transmission connection on the power output shaft of corresponding drive motors.
The vertical setting of axis of movement of the power output shaft of described drive motors and line correspondence action output, the clutch end of drive motors is in transmission connection with corresponding torque input end by Bevel Gear Transmission structure, Bevel Gear Transmission structure comprises driven wheel of differential and the drive bevel gear of the transmission of intermeshing, driven wheel of differential coaxial line is fixedly arranged on corresponding torque input end, and described drive bevel gear coaxial line is in transmission connection on the power output shaft of corresponding drive motors.
The drive motors of each single-phase operating mechanism all has at least two, each drive motors being circumferentially evenly arranged around corresponding torque input end in each single-phase operating mechanism.
Beneficial effect of the present invention is: drive motors is arranged in the periphery of the linearly operating output of leading screw, screw mechanism, in the rotor of drive motors, do not need to arrange for the reciprocating centre bore of linearly operating output, do not need drive motors to transform, the power output shaft of drive motors can be directly by drive mechanism to torque input end input torque, greatly reduce the complex structure degree of drive motors, reduced the cost of manufacture of drive motors; Simultaneously due to, need in the rotor of drive motors, centre bore be set, therefore also reduced the axial and radial dimension of drive motors, further reduced manufacture difficulty and the cost of manufacture of drive motors, the miniaturization that is also conducive to single-phase operating mechanism and whole circuit breaker is made.
Further, after drive motors is arranged in torque input end periphery, can be by adopting at least two low-power machines together for leading screw, screw mechanism provide power, compare by a drive motors and provide power for operating mechanism, reduced every output torque that drive motors is required, the acquisition cost sum of each small-power drive motors is significantly smaller than the acquisition cost of a high-power driving motor.
Accompanying drawing explanation
Fig. 1 is the cooperation schematic diagram of the wherein phase contact assembling in circuit breaker embodiment and corresponding single-phase operating mechanism in the present invention, and the while is also the use state diagram of an embodiment of single-phase operating mechanism in the present invention;
Fig. 2 is dynamic and static contact in Fig. 1 structural representation when closing a floodgate.
Embodiment
The embodiment of circuit breaker is as shown in Figure 1 and 2: the three-phase contact assembling that comprises operating mechanism and be set up in parallel, each phase contact assembling 1 includes fixed contact 3 and moving contact 4.Operating mechanism comprises that three are assembled corresponding single-phase operating mechanism with each phase contact respectively, the structure of three single-phase operating mechanisms is all identical, now with one of them single-phase operating mechanism, be specifically described, single-phase operating mechanism comprises the leading screw with torque input end and linearly operating output, screw mechanism, leading screw wherein, the screw of screw mechanism forms torque input end, leading screw, the leading screw 6 of screw mechanism forms linearly operating output, each moving contact is installed on respectively on corresponding leading screw, single-phase operating mechanism also comprises that wrapping wire thick stick is circumferentially evenly arranged in two drive motors 5 of leading screw periphery, each drive motors is permanent-magnet servo motor, the power output shaft of two drive motors all be arranged in parallel with the axis of movement of leading screw, two drive motors are in transmission connection with corresponding screw by drive mechanism, drive mechanism is cylindricality gear transmission structure, cylindricality gear transmission structure comprise a driven stud wheel 7 and with two of this driven stud wheel engaged transmission stud wheels 8 initiatively, driven stud wheel coaxial line is fixedly arranged on corresponding screw, each active stud wheel respectively coaxial line is in transmission connection on the power output shaft of corresponding drive motors.Circuit breaker also comprises with each drive motors control connection to control the controller 10 of each drive motors synchronization action, and in figure, part 9 represents host computers, and part 11 represents storage capacitors, and part 12 represents power supplys.
Host computer is for the parameter setting of switch and the output of status signal, for different circuit breakers, different output parameters can be set, controller is synchronized with the movement for controlling two drive motors simultaneously, and storage capacitor provides energy for motor action, and with pulse-width adjustment method, adjusts the speed of motor.During work, each moving contact in circuit breaker is by two drive motors drive actions, compare a drive motors, the required output torque of two drive motors is all reduced, greatly reduced the acquisition cost of drive motors, also avoided because manufacturing the drive motors of high parameter, and the device fabrication causing is difficult simultaneously; When prior, each drive motors is arranged in respectively the periphery of leading screw, leading screw is without being arranged in the rotor of drive motors, therefore do not need again to offer on the rotor of drive motors corresponding, for the reciprocating centre bore of leading screw, not only greatly reduce the complex structure degree of drive motors, also greatly reduce radial dimension and the axial dimension of drive motors, when further reducing drive motors cost of manufacture, the miniaturization that is also conducive to single-phase operating mechanism and circuit breaker is made simultaneously.
In other embodiment of this circuit breaker: drive mechanism can also be Bevel Gear Transmission structure, Bevel Gear Transmission structure comprises the drive bevel gear of a driven wheel of differential and two and this driven wheel of differential engaged transmission, wherein driven wheel of differential coaxial line is fixedly arranged on corresponding screw, each drive bevel gear is in transmission connection with the power output shaft coaxial line of corresponding drive motors respectively, the axis of the power output shaft of each drive motors all with vertical setting of axis of movement of leading screw; In each single-phase operating mechanism, the number of drive motors can also be selected according to actual needs, such as one, three or greater number; Torque input end in leading screw, screw mechanism can also consist of leading screw, and the linearly operating output in leading screw, screw can also consist of screw; Drive mechanism can also be sprocket wheel, chain drive structure; Drive motors can be the controlled swing angle electric of output angle, and drive motors can not be also magneto.
The embodiment of single-phase operating mechanism is as shown in Figure 1 and 2: single-phase operating mechanism described in the concrete structure of single-phase operating mechanism and above-mentioned each circuit breaker embodiment, is not described in detail in this.This single-phase operating mechanism preferably can be for open type circuit breaker, 126kv ~ 1100kv primary cut-out, and this single-phase operating mechanism can also be for the circuit breaker of the circuit breaker below 126kv or other type certainly.
Claims (10)
1. single-phase operating mechanism, comprise leading screw, screw mechanism, leading screw, screw mechanism have torque input end and for the linearly operating output of corresponding moving contact is installed, it is characterized in that: single-phase operating mechanism also comprises that at least one tablecloth is placed in the drive motors of described linearly operating output periphery, and the power output shaft of drive motors is in transmission connection by drive mechanism and described torque input end.
2. single-phase operating mechanism according to claim 1, it is characterized in that: the axis of movement of the power output shaft of described drive motors and described linearly operating output be arranged in parallel, the power output shaft of drive motors is in transmission connection by cylindricality gear transmission structure and described torque input end.
3. single-phase operating mechanism according to claim 2, it is characterized in that: described cylindricality gear transmission structure comprises driven stud wheel and the active stud wheel of the transmission of intermeshing, driven stud wheel coaxial line is fixedly arranged on described torque input end, and described active stud wheel coaxial line is in transmission connection on the power output shaft of described drive motors.
4. single-phase operating mechanism according to claim 1, it is characterized in that: the vertical setting of axis of movement of the power output shaft of described drive motors and described linearly operating output, the clutch end of drive motors is in transmission connection by Bevel Gear Transmission structure and described torque input end, Bevel Gear Transmission structure comprises driven wheel of differential and the drive bevel gear of the transmission of intermeshing, driven wheel of differential coaxial line is fixedly arranged on described torque input end, and described drive bevel gear coaxial line is in transmission connection on the power output shaft of described drive motors.
5. according to the single-phase operating mechanism described in claim 1 ~ 4 any one, it is characterized in that: described drive motors has at least two, each drive motors is circumferentially evenly arranged around described torque input end.
6. circuit breaker, the three-phase contact assembling that comprises operating mechanism and be set up in parallel, each phase contact assembling includes fixed contact and moving contact, operating mechanism comprises that three are assembled corresponding single-phase operating mechanism with each phase contact respectively, described single-phase operating mechanism comprises leading screw, screw mechanism, leading screw, screw mechanism has torque input end and for the linearly operating output of corresponding moving contact is installed, it is characterized in that: each single-phase operating mechanism also includes the drive motors that at least one tablecloth is placed in line correspondence action output periphery, the power output shaft of drive motors is in transmission connection with corresponding torque input end by each self-corresponding drive mechanism.
7. circuit breaker according to claim 6, it is characterized in that: the axis of movement of the power output shaft of the drive motors in each single-phase operating mechanism and line correspondence action output be arranged in parallel, and the power output shaft of drive motors is in transmission connection by cylindricality gear transmission structure and described torque input end.
8. circuit breaker according to claim 7, it is characterized in that: described cylindricality gear transmission structure comprises driven stud wheel and the active stud wheel of the transmission of intermeshing, driven stud wheel coaxial line is fixedly arranged on corresponding torque input end, and described active stud wheel coaxial line is in transmission connection on the power output shaft of corresponding drive motors.
9. circuit breaker according to claim 6, it is characterized in that: the vertical setting of axis of movement of the power output shaft of described drive motors and line correspondence action output, the clutch end of drive motors is in transmission connection with corresponding torque input end by Bevel Gear Transmission structure, Bevel Gear Transmission structure comprises driven wheel of differential and the drive bevel gear of the transmission of intermeshing, driven wheel of differential coaxial line is fixedly arranged on corresponding torque input end, and described drive bevel gear coaxial line is in transmission connection on the power output shaft of corresponding drive motors.
10. according to the circuit breaker described in claim 6 ~ 9 any one, it is characterized in that: the drive motors of each single-phase operating mechanism all has at least two each drive motors being circumferentially evenly arranged around corresponding torque input end in each single-phase operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297573.0A CN104143485B (en) | 2013-07-16 | 2013-07-16 | Single-phase operating mechanism and use the breaker of this single-phase operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310297573.0A CN104143485B (en) | 2013-07-16 | 2013-07-16 | Single-phase operating mechanism and use the breaker of this single-phase operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104143485A true CN104143485A (en) | 2014-11-12 |
| CN104143485B CN104143485B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310297573.0A Active CN104143485B (en) | 2013-07-16 | 2013-07-16 | Single-phase operating mechanism and use the breaker of this single-phase operating mechanism |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161651A (en) * | 1984-07-12 | 1986-01-15 | Mitsubishi Electric Corp | Switch operating mechanism |
| JPH01206534A (en) * | 1988-02-10 | 1989-08-18 | Toshiba Corp | Motor-operated device for circuit breaker |
| CN101425401A (en) * | 2007-10-29 | 2009-05-06 | 阿雷瓦T&D公司 | Electromagnetic actuator equipped with a mechanical brake of the type with a wound-coil spring |
| CN101814382A (en) * | 2010-04-13 | 2010-08-25 | 张文炎 | Energy storing part and switching-off and switching-on part combining device and method of spring operating mechanism |
-
2013
- 2013-07-16 CN CN201310297573.0A patent/CN104143485B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2161651A (en) * | 1984-07-12 | 1986-01-15 | Mitsubishi Electric Corp | Switch operating mechanism |
| JPH01206534A (en) * | 1988-02-10 | 1989-08-18 | Toshiba Corp | Motor-operated device for circuit breaker |
| CN101425401A (en) * | 2007-10-29 | 2009-05-06 | 阿雷瓦T&D公司 | Electromagnetic actuator equipped with a mechanical brake of the type with a wound-coil spring |
| CN101814382A (en) * | 2010-04-13 | 2010-08-25 | 张文炎 | Energy storing part and switching-off and switching-on part combining device and method of spring operating mechanism |
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| Publication number | Publication date |
|---|---|
| CN104143485B (en) | 2016-08-31 |
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