CN104143485B - Single-phase operating mechanism and use the breaker of this single-phase operating mechanism - Google Patents
Single-phase operating mechanism and use the breaker of this single-phase operating mechanism Download PDFInfo
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- CN104143485B CN104143485B CN201310297573.0A CN201310297573A CN104143485B CN 104143485 B CN104143485 B CN 104143485B CN 201310297573 A CN201310297573 A CN 201310297573A CN 104143485 B CN104143485 B CN 104143485B
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Abstract
The present invention relates to single-phase operating mechanism and use the breaker of this single-phase operating mechanism, single-phase operating mechanism, including leading screw, screw mechanism, leading screw, screw mechanism have torque input end and for installing the linearly operating output of corresponding moving contact, single-phase operating mechanism also includes that at least one tablecloth is placed in the driving motor that described linearly operating output is peripheral, drives the power output shaft of motor to be in transmission connection with described torque input end by drive mechanism.The invention provides a kind of single-phase operating mechanism that can reduce and drive electric machine structure complexity.
Description
Technical field
The present invention relates to field of circuit breakers, particularly relate to a kind of single-phase operating mechanism and use the breaker of this single-phase operating mechanism.
Background technology
Primary cut-out is most important switchgear in power system, is responsible for and controls and the dual role of protection circuit, and the quality of its performance is one of key factor determining 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 is realized by operating mechanism, operating mechanism is the important component part of breaker, it it is the critical component determining breaker performance, the quality of its performance directly influences the technical performance of breaker, and therefore the functional reliability of breaker is largely dependent upon the Reliability of Microprocessor of operating mechanism.
Complete its operating process owing to the requirement of the job specification of breaker own makes its operating mechanism require in millisecond, and this set of system being made up of component of machine completely goes to realize in fact requiring to be the highest.From the point of view of the fault statistics numeral of international, state's inner breaker, mechanical breakdown is in the great majority, up to the 70% of total failare, therefore, at breaker to high voltage, Large Copacity, today of high reliability development, in order to meet the power system requirement to high reliability, it is necessary to study that a kind of volume is little, simple in construction and the controlled operating mechanism of motion process, to this end, electric motor type operating mechanism is gradually widely used in breaker.nullThe Chinese patent literature of existing electric motor type operating mechanism such as Publication No. CN1416585A " circuit-breaker and use the equipment of this breaker、Purposes and method "，This circuit-breaker includes the single-phase operating mechanisms that the three-phase contact that left and right is set up in parallel assembles and three corresponding with the assembling of each phase contact respectively，The assembling of each contact all includes static contact and moving contact，Single-phase operating mechanism includes leading screw、Screw mechanism，Leading screw、The leading screw of screw mechanism constitutes leading screw、The linearly operating output of screw mechanism，Leading screw、The screw of screw mechanism constitutes leading screw、The torque input end of screw mechanism，Each moving contact is assemblied on the leading screw of correspondence respectively，Single-phase operating mechanism also includes the driving motor that clutch end is coaxially set with corresponding screw，Driving motor is servomotor or the controlled swing angle electric of output angle，Drive the rotor connection fixing with corresponding screw coaxial line of motor，The centre bore moved axially in reciprocal fashion for corresponding leading screw is offered the most vertically in each rotor driving motor.Existing this single-phase operating mechanism there is a problem in that 1, owing to driving the rotor of motor to be coaxially set with corresponding screw, cause and the centre bore moved axially in reciprocal fashion for leading screw must be set in the inside of rotor, this just considerably increases the structure complexity driving motor, the driving motor of cash purchase can not directly use, could must be used in breaker driving motor to carry out transformation, the improvement cost driving motor is the highest, additionally, setting due to centre bore, in order to ensure that original driving motor can also export the output moment of torsion of equal size, it is necessary for increasing the motor size that original driving motor is radial and axial, the physical dimension driving motor is also greatly increased, further add the cost of manufacture driving motor；2, the output torque driving motor cannot adapt to the three-phase breaker of 126Kv above, this is because its particularity driving motor used, rising along with electric pressure, the output moment of torsion of required driving motor is the biggest, the divide-shut brake speed of breaker also needs to improve therewith simultaneously, the rotating speed that corresponding requirement drives motor is the fastest, thus causes the manufacturing cost driving motor to sharply increase.
Summary of the invention
It is an object of the invention to provide a kind of single-phase operating mechanism that can reduce and drive electric machine structure complexity；The present invention also aims to provide a kind of breaker using this single-phase operating mechanism.
In order to solve the problems referred to above, in the present invention, the technical scheme of single-phase operating mechanism is:
Single-phase operating mechanism, including leading screw, screw mechanism, leading screw, screw mechanism have torque input end and for installing the linearly operating output of corresponding moving contact, single-phase operating mechanism also includes that at least one tablecloth is placed in the driving motor that described linearly operating output is peripheral, drives the power output shaft of motor to be in transmission connection with described torque input end by drive mechanism.
The power output shaft of described driving motor be arranged in parallel with the axis of movement of described linearly operating output, drives the power output shaft of motor to be in transmission connection with described torque input end by cylindricality gear transmission structure.
Described cylindricality gear transmission structure includes the intermesh driven stud wheel of transmission and actively stud wheel, 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 driving motor.
The power output shaft of described driving motor is vertically arranged with the axis of movement of described linearly operating output, the clutch end driving motor is in transmission connection with described torque input end by Bevel Gear Transmission structure, Bevel Gear Transmission structure includes intermeshing the driven wheel of differential of transmission and drive bevel gear, 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 driving motor.
Described driving motor has at least two, and each driving motor is evenly arranged around the circumference of described torque input end.
In the present invention, the technical scheme of breaker is:
Breaker, assemble including operating mechanism and the three-phase contact being set up in parallel, the assembling of each phase contact all includes static contact and moving contact, operating mechanism includes three single-phase operating mechanisms corresponding with the assembling of each phase contact respectively, described single-phase operating mechanism includes leading screw, screw mechanism, leading screw, screw mechanism has torque input end and for installing the linearly operating output of corresponding moving contact, each single-phase operating mechanism also includes at least one tablecloth and is placed in the driving motor that line correspondence action output is peripheral, the power output shaft driving motor is in transmission connection with corresponding torque input end by each self-corresponding drive mechanism.
The power output shaft of motor that drives in each single-phase operating mechanism be arranged in parallel with the axis of movement of line correspondence action output, drives the power output shaft of motor to be in transmission connection with described torque input end by cylindricality gear transmission structure.
Described cylindricality gear transmission structure includes the intermesh driven stud wheel of transmission and actively stud wheel, 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 that correspondence drives motor.
The power output shaft of described driving motor is vertically arranged with the axis of movement of line correspondence action output, the clutch end driving motor is in transmission connection with corresponding torque input end by Bevel Gear Transmission structure, Bevel Gear Transmission structure includes intermeshing the driven wheel of differential of transmission and drive bevel gear, 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 that correspondence drives motor.
The driving motor of each single-phase operating mechanism all has at least two, and each driving motor in each single-phase operating mechanism is evenly arranged around the circumference of corresponding torque input end.
The invention have the benefit that driving motor is arranged in the periphery of the linearly operating output of leading screw, screw mechanism, drive and the rotor of motor need not arrange for the reciprocating centre bore of linearly operating output, i.e. need not driving motor to transform, the power output shaft driving motor can directly pass through drive mechanism to torque input end input torque, greatly reduce the structure complexity driving motor, reduce the cost of manufacture driving motor；Simultaneously because, need not arrange centre bore in the rotor driving motor, therefore also reducing the axially and radially size driving motor, further reduce manufacture difficulty and the cost of manufacture driving motor, the miniaturization being also beneficial to single-phase operating mechanism and whole breaker makes.
Further, after driving motor to be arranged in torque input end periphery, power can be provided for leading screw, screw mechanism together by using at least two low-power machine, compare for providing power by a driving motor for operating mechanism, reduce the output torque needed for every driving motor, the acquisition cost that each small-power drives the acquisition cost sum of motor to be significantly smaller than a high-power driving motor.
Accompanying drawing explanation
Fig. 1 is that in the present invention, the wherein phase contact in breaker embodiment assembles the cooperation schematic diagram with corresponding single-phase operating mechanism, is also the use state diagram of an embodiment of single-phase operating mechanism in the present invention simultaneously；
Fig. 2 is the structural representation when closing a floodgate of the dynamic and static contact in Fig. 1.
Detailed description of the invention
The embodiment of breaker is as shown in Figure 1 and 2: including operating mechanism and the three-phase contact assembling being set up in parallel, each phase contact assembling 1 all includes static contact 3 and moving contact 4.nullOperating mechanism includes three single-phase operating mechanisms corresponding with the assembling of each phase contact respectively，The structure of three single-phase operating mechanisms is the most identical，Now it is specifically described with one of them single-phase operating mechanism，Single-phase operating mechanism includes having torque input end and the leading screw of linearly operating output、Screw mechanism，Wherein leading screw、The screw of screw mechanism constitutes torque input end，Leading screw、The leading screw 6 of screw mechanism constitutes linearly operating output，Each moving contact is respectively arranged on corresponding leading screw，Single-phase operating mechanism also includes being evenly arranged in, around leading screw circumference, two driving motors 5 that leading screw is peripheral，Each driving motor is permanent-magnet servo motor，The power output shaft of two driving motors all axis of movements with leading screw be arranged in parallel，Two driving motors are in transmission connection with corresponding screw by drive mechanism，Drive mechanism is cylindricality gear transmission structure，Cylindricality gear transmission structure includes a driven stud wheel 7 and two active stud wheels 8 with this driven stud wheel engaged transmission，Driven stud wheel coaxial line is fixedly arranged on corresponding screw，Each actively stud wheel coaxial line respectively is in transmission connection on the power output shaft that correspondence drives motor.Breaker also includes controlling with each driving motor to be connected to control the controller 10 of each driving motor in synchrony action, and in figure, part 9 represents that host computer, part 11 represent that storage capacitor, part 12 represent power supply.
Host computer is arranged and the output of status signal for the parameter of switch, for different breakers, different output parameters can be set, controller drives motor in synchrony motion for controlling two simultaneously, and storage capacitor provides energy for motor action, and adjusts the speed of motor with pulse-width adjustment method.During work, each moving contact in breaker is by two driving motor drive actions, for comparing a driving motor, the required output torque of two driving motors is all reduced, substantially reduce the acquisition cost driving motor, it also avoid the driving motor because manufacturing high parameter simultaneously, and the device fabrication caused is difficult；Time prior, each driving motor is respectively arranged the periphery in leading screw, leading screw is without being arranged in the rotor driving motor, therefore need not drive again and offer on the rotor of motor accordingly, for the reciprocating centre bore of leading screw, not only greatly reduce the structure complexity driving motor, being greatly reduced radial dimension and the axial dimension driving motor, while reducing driving motor manufacturing cost further, the miniaturization being also beneficial to single-phase operating mechanism and breaker makes simultaneously.
In the other embodiments of this breaker: drive mechanism can also is that Bevel Gear Transmission structure, Bevel Gear Transmission structure includes 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 corresponding power output shaft coaxial line driving motor respectively, and the axis of each power output shaft driving motor all axis of movements with leading screw are vertically arranged；The number driving motor in each single-phase operating mechanism can also select according to actual needs, such as one, three or greater number；Torque input end in leading screw, screw mechanism can also be made up of leading screw, and the linearly operating output in leading screw, screw can also be made up of screw；Drive mechanism can also is that sprocket wheel, chain drive structure；Driving motor can be the swing angle electric that output angle is controlled, drives motor to may not be magneto.
The embodiment of single-phase operating mechanism is as shown in Figure 1 and 2: the concrete structure of single-phase operating mechanism and single-phase operating mechanism described in above-mentioned each breaker embodiment, is not described in detail in this.This single-phase operating mechanism preferably may be used for open type breaker, 126kv ~ 1100kv primary cut-out, and this single-phase operating mechanism can be also used for the breaker of below 126kv or other type of breaker certainly.
Claims (10)
- The most single-phase operating mechanism, including leading screw, screw mechanism, leading screw, screw mechanism have torque input end and for installing the linearly operating output of corresponding moving contact, it is characterized in that: single-phase operating mechanism also includes that at least one tablecloth is placed in the driving motor that described linearly operating output is peripheral, the power output shaft driving motor is in transmission connection with described torque input end by drive mechanism, leading screw, the screw of screw mechanism constitute torque input end, leading screw, the leading screw of screw mechanism constitute linearly operating output, and leading screw is installed for moving contact.
- Single-phase operating mechanism the most according to claim 1, it is characterized in that: the power output shaft of described driving motor be arranged in parallel with the axis of movement of described linearly operating output, drive the power output shaft of motor to be in transmission connection with described torque input end by cylindricality gear transmission structure.
- Single-phase operating mechanism the most according to claim 2, it is characterized in that: described cylindricality gear transmission structure includes the intermesh driven stud wheel of transmission and actively stud wheel, 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 driving motor.
- Single-phase operating mechanism the most according to claim 1, it is characterized in that: the power output shaft of described driving motor is vertically arranged with the axis of movement of described linearly operating output, the clutch end driving motor is in transmission connection with described torque input end by Bevel Gear Transmission structure, Bevel Gear Transmission structure includes intermeshing the driven wheel of differential of transmission and drive bevel gear, 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 driving motor.
- 5. according to the single-phase operating mechanism described in claim 1 ~ 4 any one, it is characterised in that: described driving motor has at least two, and each driving motor is evenly arranged around the circumference of described torque input end.
- 6. breaker, assemble including operating mechanism and the three-phase contact being set up in parallel, the assembling of each phase contact all includes static contact and moving contact, operating mechanism includes three single-phase operating mechanisms corresponding with the assembling of each phase contact respectively, described single-phase operating mechanism includes leading screw, screw mechanism, leading screw, screw mechanism has torque input end and for installing the linearly operating output of corresponding moving contact, it is characterized in that: each single-phase operating mechanism also includes at least one tablecloth and is placed in the driving motor that line correspondence action output is peripheral, the power output shaft driving motor is in transmission connection with corresponding torque input end by each self-corresponding drive mechanism, leading screw, the screw of screw mechanism constitutes torque input end, leading screw, the leading screw of screw mechanism constitutes linearly operating output, leading screw is installed for moving contact.
- Breaker the most according to claim 6, it is characterized in that: the power output shaft of motor that drives in each single-phase operating mechanism be arranged in parallel with the axis of movement of line correspondence action output, drives the power output shaft of motor to be in transmission connection with described torque input end by cylindricality gear transmission structure.
- Breaker the most according to claim 7, it is characterized in that: described cylindricality gear transmission structure includes the intermesh driven stud wheel of transmission and actively stud wheel, 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 that correspondence drives motor.
- Breaker the most according to claim 6, it is characterized in that: the power output shaft of described driving motor is vertically arranged with the axis of movement of line correspondence action output, the clutch end driving motor is in transmission connection with corresponding torque input end by Bevel Gear Transmission structure, Bevel Gear Transmission structure includes intermeshing the driven wheel of differential of transmission and drive bevel gear, 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 that correspondence drives motor.
- 10. according to the breaker described in claim 6 ~ 9 any one, it is characterised in that: the driving motor of each single-phase operating mechanism all has at least two, and each driving motor in each single-phase operating mechanism is evenly arranged around the circumference of corresponding torque input end.
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| 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN104143485A CN104143485A (en) | 2014-11-12 |
| CN104143485B true CN104143485B (en) | 2016-08-31 |
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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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| CN104143485A (en) | 2014-11-12 |
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