CN114166484A - Mechanical performance test bench for circuit breaker operating mechanism - Google Patents
Mechanical performance test bench for circuit breaker operating mechanism Download PDFInfo
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- CN114166484A CN114166484A CN202111339753.1A CN202111339753A CN114166484A CN 114166484 A CN114166484 A CN 114166484A CN 202111339753 A CN202111339753 A CN 202111339753A CN 114166484 A CN114166484 A CN 114166484A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 78
- 238000011056 performance test Methods 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000010891 electric arc Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 10
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention provides a mechanical performance test bench for a circuit breaker operating mechanism, which comprises a single-arm tension test machine; the single-arm tension tester comprises an operation console, a fixed bracket and a testing mechanism; the fixed bracket is arranged on the operation console; the testing mechanism is movably arranged on the fixed support and is connected with the operation console. The invention also comprises a movable conveying frame which is used for assisting the breaker operating mechanism to be easily and conveniently placed in the single-arm tension testing machine and adjusting the direction. The invention can realize the slow opening and closing action of the circuit breaker operating mechanism, stop at the designated position to facilitate the process maintenance, record the force-stroke curve of the opening and closing energy storage spring to judge the fatigue condition of the spring, and prevent the circuit breaker body from exploding due to arc discharge fault caused by too low opening and closing speed.
Description
Technical Field
The invention relates to the field of circuit breaker testing, in particular to a mechanical performance test board for a circuit breaker operating mechanism.
Background
In the class A maintenance of the circuit breaker operating mechanism, the circuit breaker switching-on and switching-off part, the energy storage part, the buffer part and each transmission part need to be disassembled to the minimum part, and the circuit breaker operating mechanism is cleaned and then re-installed, however, the circuit breaker operating mechanism cannot be directly connected with the circuit breaker body to test after being re-installed, and whether the mechanical performance of the operating mechanism A after maintenance meets the requirements cannot be judged.
The circuit breaker operating device divides closing movement speed very fast, and whole motion cycle is about 50ms, and the direct clear each part cooperation condition in seeing out the motion process of naked eye can not, therefore the maintainer very urgent need circuit breaker can divide slowly and close to stop at the assigned position, make things convenient for the process to overhaul.
The power of the circuit breaker operating mechanism comes from the opening and closing energy storage spring, the fatigue of the energy storage spring can cause the opening and closing speed to be too slow, the arc discharge fault is caused, and the circuit breaker body explodes, so that whether the opening and closing energy storage spring of the circuit breaker meets the working requirements or not is an important content in daily regular inspection, and the detection method and the technical standard market do not exist.
The utility model discloses a chinese patent number is 200320103377.7's utility model provides a device is shut slowly to circuit breaker, and the device only can be through the mode of reduction gear transmission, will divide closing force to diminish to the realization is shut slowly and is stopped midway, nevertheless can't test energy storage spring's power and the relation of stroke, and the device only is applicable to specific circuit breaker model, and consequently the applicable face is narrower.
Disclosure of Invention
In order to solve the problems, the invention provides a mechanical performance test bench for a circuit breaker operating mechanism, which comprises a single-arm tension test machine; the single-arm tension tester comprises an operation console, a fixed bracket and a testing mechanism; the fixed bracket is arranged on the operation console; the testing mechanism is movably arranged on the fixed support and is connected with the operation console. The invention also comprises a movable conveying frame which is used for assisting the breaker operating mechanism to be easily and conveniently placed in the single-arm tension testing machine and adjusting the direction. The invention can realize the slow opening and closing action of the circuit breaker operating mechanism, stop at the designated position to facilitate the process maintenance, record the force-stroke curve of the opening and closing energy storage spring to judge the fatigue condition of the spring, and prevent the circuit breaker body from exploding due to arc discharge fault caused by too low opening and closing speed.
The technical scheme adopted by the invention is as follows:
a mechanical performance test board for a circuit breaker operating mechanism comprises a single-arm tension test machine; the single-arm tension tester comprises an operation console, a fixed bracket and a testing mechanism; the fixed bracket is arranged on the operation console; the testing mechanism is movably arranged on the fixed support and is connected with the operation console.
Furthermore, the fixed support adopts a door-shaped structure; the upright columns on the two sides of the fixed bracket are respectively provided with a transmission mechanism; the transmission mechanism is respectively connected with the testing mechanism and the operating console.
Furthermore, the testing mechanism comprises a control cross rod, a tension sensor and a connecting rod; the control cross rod is movably arranged on the fixed bracket; the tension sensor is arranged below the middle of the control cross rod and connected with the operation console to upload detection data; the upper end of the connecting rod is movably connected with the tension sensor.
Furthermore, the testing mechanism also comprises a transmission crank arm; one end of the transmission crank arm is movably connected with the lower end of the connecting rod.
Furthermore, the transmission connecting lever adopts an L structure, and the corner part adopts a fillet structure for transition.
Further, the device also comprises a movable conveying frame.
Further, one side surface of the movable conveying frame is an inclined surface; and a conveying roller is arranged on the inclined surface so as to convey the circuit breaker operating mechanism from the bottom to the top.
Further, the height of the movable conveying frame is the same as that of the operation console.
Drawings
Fig. 1 is a schematic view of a structure of a mechanical performance test bench of a circuit breaker operating mechanism.
Description of reference numerals: 1-operation console, 2-fixed support, 3-testing mechanism, 31-control cross bar, 32-tension sensor, 33-connecting rod, 34-transmission crank arm, 4-movable transmission frame, 41-transmission roller and 5-breaker operation mechanism.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Example one
As shown in fig. 1, the mechanical performance test bench for the circuit breaker operating mechanism comprises a single-arm tension test machine and a movable transmission frame 4; the movable conveying frame 4 is used for assisting in lifting the circuit breaker operating mechanism 5 onto a single-arm tension testing machine and adjusting the position of the circuit breaker operating mechanism, and the single-arm tension testing machine is used for testing the mechanical performance of the circuit breaker operating mechanism 5, recording and reading the numerical values of force and stroke in the motion process in real time and outputting a force-stroke curve.
In specific implementation, the single-arm tension tester comprises an operation console 1, a fixed support 2 and a testing mechanism 3; the fixed support 2 is vertically and fixedly arranged on the operation console 1; the testing mechanism 3 is movably arranged on the fixed support 2 and is connected with the operation console 1. When the mechanical performance test is carried out, the circuit breaker operating mechanism 5 is placed on the operating console 1, the testing mechanism 3 is controlled to move and pull the opening and closing energy storage spring of the circuit breaker operating mechanism 5 upwards, the testing mechanism 3 detects the pulled tension value and transmits the pull force value to the operating console 1, and the operating console 1 outputs a force-stroke curve according to the moving distance and the tension force.
In specific implementation, in order to balance and stabilize the stress in the whole test process, the fixed support 2 adopts a door-shaped structure; the upright columns on the two sides of the fixed support 2 are respectively provided with a transmission mechanism with adjustable speed and detectable transmission distance; the transmission mechanism is connected with the testing mechanism 3 to drive the testing mechanism 3 to ascend or descend, and the ascending or descending distance is fed back to the operation console 1.
In a specific implementation, the testing mechanism 3 comprises a control cross bar 31, a tension sensor 32 and a connecting rod 33; two ends of the control cross rod 31 are movably arranged on the transmission mechanisms on the upright columns at two sides of the fixed support 2; the tension sensor 32 is arranged below the middle of the control cross rod 31 and is connected with the operation console 1 to upload detection data; the upper end of the connecting rod 33 is movably connected with the tension sensor 32, and the lower end of the connecting rod is connected with the opening and closing energy storage spring of the circuit breaker operating mechanism 5. In the test process, the control cross rod 31 is driven by the transmission mechanism to move upwards, the opening and closing energy storage spring of the circuit breaker operating mechanism 5 is pulled through the tension sensor 32 and the connecting rod 33, and the tension sensor 32 detects corresponding tension and feeds the tension back to the operating console 1.
In a specific implementation, the testing mechanism 3 further comprises a transmission crank arm 34 for testing the horizontal movement type circuit breaker operating mechanism 5. During testing, one end of the transmission connecting lever 34 is movably connected with the lower end of the connecting rod 33, the other end of the transmission connecting lever is movably connected with the horizontal motion type circuit breaker operating mechanism 5 on the movable conveying frame 4, and in the upward motion process of the control cross rod 31, the horizontal motion type circuit breaker operating mechanism 5 is vertically placed by changing the transverse placement through the azimuth rotation of the transmission connecting lever 34, so that the testing is facilitated.
In specific implementation, the transmission crank arm 34 adopts an L-shaped structure, and a corner part is subjected to fillet transition treatment to prevent stress concentration.
In a specific implementation, one side surface of the movable conveying frame 4 is an inclined surface; the inclined plane is provided with a conveying roller 41 so as to convey the circuit breaker operating mechanism 5 to the top from the bottom, and the circuit breaker operating mechanism 5 can be easily and conveniently placed on the operating control console 1 of the single-arm tension testing machine. Accordingly, the height of the mobile transfer frame 4 is the same as that of the operation console 1 for safety and reliability in operation.
The invention provides a mechanical performance test bench for a circuit breaker operating mechanism, which comprises a single-arm tension test machine; the single-arm tension tester comprises an operation console, a fixed bracket and a testing mechanism; the fixed bracket is arranged on the operation console; the testing mechanism is movably arranged on the fixed support and is connected with the operation console. When the mechanical performance test is carried out, the circuit breaker operating mechanism is placed on the operating console, the testing mechanism is controlled to move and pull the opening and closing energy storage spring of the circuit breaker operating mechanism upwards at the same time, the testing mechanism detects the pulled tension value and transmits the pull force value to the operating console at the same time, and the operating console outputs a force-stroke curve according to the moving distance and the tension force; the invention also comprises a movable conveying frame which is used for assisting the breaker operating mechanism to be easily and conveniently placed in the single-arm tension testing machine and adjusting the direction. The invention can realize the slow opening and closing action of the circuit breaker operating mechanism, stop at the designated position to facilitate the process maintenance, record the force-stroke curve of the opening and closing energy storage spring to judge the fatigue condition of the spring, and prevent the circuit breaker body from exploding due to arc discharge fault caused by too low opening and closing speed. In addition, the invention is also suitable for the operating mechanisms of the vertical movement type and the horizontal movement type circuit breakers, and has wider application range.
In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (8)
1. A mechanical performance test bench for a circuit breaker operating mechanism is characterized by comprising a single-arm tension test machine; the single-arm tension tester comprises an operation control console (1), a fixed support (2) and a testing mechanism (3); the fixed support (2) is arranged on the operation console (1); the testing mechanism (3) is movably arranged on the fixed support (2) and is connected with the operation console (1).
2. The mechanical performance test bench of an operating mechanism of a circuit breaker according to claim 1, characterized in that the fixed bracket (2) adopts a door-shaped structure; the upright columns on the two sides of the fixed support (2) are respectively provided with a transmission mechanism; the transmission mechanism is respectively connected with the testing mechanism (3) and the operation console (1).
3. The mechanical performance test bench of circuit breaker operating mechanism according to claim 1, characterized in that said test mechanism (3) comprises a control crossbar (31), a tension sensor (32) and a connecting rod (33); the control cross rod (31) is movably arranged on the fixed bracket (2); the tension sensor (32) is arranged below the middle of the control cross rod (31) and connected with the operation console (1) to upload detection data; the upper end of the connecting rod (33) is movably connected with the tension sensor (32).
4. The test bench of claim 3, characterized in that said test mechanism (3) further comprises a transmission crank arm (34); one end of the transmission crank arm (34) is movably connected with the lower end of the connecting rod (33).
5. The mechanical performance test bench of an operating mechanism of a circuit breaker according to claim 4, characterized in that the transmission crank arm (34) adopts an L-shaped structure and adopts a round corner structure for transition at the corner.
6. The mechanical performance test stand of any one of claims 1 to 5, further comprising a movable conveyor rack (4).
7. The mechanical performance test bench of circuit breaker operating mechanism according to claim 6, characterized in that one side of said movable conveyor frame (4) is a slope; the inclined surface is provided with a conveying roller (41) so as to convey the circuit breaker operating mechanism (5) from the bottom to the top.
8. The test bench of claim 6, characterized in that the height of the mobile conveyor frame (4) is the same as the height of the operating console (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111339753.1A CN114166484A (en) | 2021-11-12 | 2021-11-12 | Mechanical performance test bench for circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111339753.1A CN114166484A (en) | 2021-11-12 | 2021-11-12 | Mechanical performance test bench for circuit breaker operating mechanism |
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| Publication Number | Publication Date |
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| CN114166484A true CN114166484A (en) | 2022-03-11 |
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| CN202111339753.1A Pending CN114166484A (en) | 2021-11-12 | 2021-11-12 | Mechanical performance test bench for circuit breaker operating mechanism |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202339280U (en) * | 2012-01-19 | 2012-07-18 | 康卓彬德电磁技术（苏州）有限公司 | Mechanical performance tester of opening and closing electromagnetic trip |
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| CN204556146U (en) * | 2015-04-30 | 2015-08-12 | 宁波奇乐电气集团有限公司 | The main spring device for measuring force of circuit breaker operation mechanism |
| CN105136576A (en) * | 2015-09-15 | 2015-12-09 | 芜湖赛宝信息产业技术研究院有限公司 | Spring load test system |
| CN105372051A (en) * | 2015-11-27 | 2016-03-02 | 广东电网有限责任公司电力科学研究院 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
| CN105974307A (en) * | 2016-08-01 | 2016-09-28 | 厦门理工学院 | Device and method for online monitoring comprehensive characteristics of high-voltage circuit breaker |
| CN106783303A (en) * | 2016-12-29 | 2017-05-31 | 中国西电电气股份有限公司 | A kind of high-voltage switch gear divide-shut brake acts mechanical property monitoring method and equipment |
| CN207502680U (en) * | 2017-11-27 | 2018-06-15 | 湖南长高成套电器有限公司 | A kind of breaker final inspection tests system |
| CN207689269U (en) * | 2018-01-24 | 2018-08-03 | 东莞市科锐仪器科技有限公司 | A kind of vertical measurer for pulling force |
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2021
- 2021-11-12 CN CN202111339753.1A patent/CN114166484A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202339280U (en) * | 2012-01-19 | 2012-07-18 | 康卓彬德电磁技术（苏州）有限公司 | Mechanical performance tester of opening and closing electromagnetic trip |
| CN203551262U (en) * | 2013-10-09 | 2014-04-16 | 中国西电电气股份有限公司 | Running-in testing device for spring operation mechanism of breaker |
| CN203630245U (en) * | 2013-12-11 | 2014-06-04 | 北京机床所精密机电有限公司 | Performance tester for proportion electromagnet and spring |
| CN103954446A (en) * | 2014-05-22 | 2014-07-30 | 大全集团有限公司 | Operation force-displacement curve testing device of breaker and automatic detection system thereof |
| CN204556146U (en) * | 2015-04-30 | 2015-08-12 | 宁波奇乐电气集团有限公司 | The main spring device for measuring force of circuit breaker operation mechanism |
| CN105136576A (en) * | 2015-09-15 | 2015-12-09 | 芜湖赛宝信息产业技术研究院有限公司 | Spring load test system |
| CN105372051A (en) * | 2015-11-27 | 2016-03-02 | 广东电网有限责任公司电力科学研究院 | Detection device of mechanical characteristics of linear-rotary dual-purpose breaker |
| CN105974307A (en) * | 2016-08-01 | 2016-09-28 | 厦门理工学院 | Device and method for online monitoring comprehensive characteristics of high-voltage circuit breaker |
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| CN207502680U (en) * | 2017-11-27 | 2018-06-15 | 湖南长高成套电器有限公司 | A kind of breaker final inspection tests system |
| CN207689269U (en) * | 2018-01-24 | 2018-08-03 | 东莞市科锐仪器科技有限公司 | A kind of vertical measurer for pulling force |
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Application publication date: 20220311 |