CN109507573B - High-low temperature performance testing device for circuit breaker - Google Patents

High-low temperature performance testing device for circuit breaker Download PDF

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Publication number
CN109507573B
CN109507573B CN201810774532.9A CN201810774532A CN109507573B CN 109507573 B CN109507573 B CN 109507573B CN 201810774532 A CN201810774532 A CN 201810774532A CN 109507573 B CN109507573 B CN 109507573B
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contact
circuit breaker
contact piece
bottom plate
follow
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CN201810774532.9A
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CN109507573A (en
Inventor
李卫
李陕中
韩满亮
刘鑫
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Xi'an E Fly Avionics Science & Technology Co ltd
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Xi'an E Fly Avionics Science & Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Breakers (AREA)

Abstract

The invention belongs to a test technology and relates to a high-low temperature performance test device for a circuit breaker. It is characterized in that the device consists of a contact piece component [1], a bottom plate [2], a linear guide rail [3], a compression spring [4], a floating support block [5] and a follow-up sliding plate [6 ]. The invention is used for the rapid test of the high and low temperature performance of the circuit breaker, ten circuit breakers can be simultaneously tested by one-time clamping, the test requirement of the contact resistance of the circuit breaker is ensured by utilizing the reed made of beryllium bronze alloy and the floating installation structure, and the invention has the advantages of simple structure, convenient operation and high test efficiency.

Description

High-low temperature performance testing device for circuit breaker
Technical Field
The invention belongs to a test technology, and particularly relates to a high-low temperature performance test device for a circuit breaker.
Background
The circuit breakers are widely applied electrical products and have large demand, but the current test process is still in an original state, the independent manual wiring and assembly and disassembly of each circuit breaker are inconvenient to test, the efficiency is extremely low, the labor is seriously wasted, the test cost is high, and the production development is seriously hindered, so that an efficient and reliable circuit breaker test device is urgently needed to be developed.
Disclosure of Invention
The purpose of the invention is: the high-low temperature performance testing device for the circuit breaker is provided and used for testing the high-low temperature performance of the circuit breaker. The requirement can meet the requirement of quick assembly and disassembly of the tested breaker and reliable contact; the circuit breaker high-low temperature performance integrated test device meets the contact requirement, is convenient to operate and has a simple structure.
The technical scheme of the invention is as follows:
a high-low temperature performance testing device of a circuit breaker comprises components such as a contact piece assembly [1], a bottom plate [2], a linear guide rail [3], a compression spring [4], a floating support block [5], a follow-up sliding plate [6] and the like.
The contact piece component [1] is a structural member consisting of two spring pieces and a component base, the spring pieces are arranged on two side surfaces of the component base, two round holes are formed in the surface of the part of the spring piece arranged on the side surface of the component base, the part of the spring piece is arranged on the side surface of the base through screws, the other part of the spring piece is used for contacting a contact piece on a tested piece breaker, the bending angle of the part of the spring piece is consistent with the bending angle of the contact piece of the breaker, the maximum area contact is ensured, and the contact.
The bottom plate (2) is a rectangular steel plate with a certain thickness, the bottom plate is provided with a plurality of counter bores for mounting parts such as a linear guide rail (3), a contact piece component (1) and the like, a plurality of round holes are uniformly distributed on two sides of the edge of the bottom plate,
the linear guide rail [3] is a standard linear guide rail pair and is arranged on the bottom plate [2], and the follow-up sliding plate [6] is arranged on the guide rail [3] through a screw.
The compression spring [4] is a structural member consisting of a spring, a bolt and a positioning block, threaded holes are formed in the top surface, the front surface and the rear surface of the positioning block, the threaded holes in the front surface and the rear surface are used for installing the positioning bolt and the spring, and the threaded holes in the top surface of the positioning block are used for connecting the floating support block [5 ].
The floating support block [5] is a rectangular part, a groove with a certain depth and the same appearance as the breaker is dug from the upper surface, the breaker to be tested is arranged in the groove, the interference part between the middle parts of the edges of the two ends of the groove and the breaker is removed, a counter bore is arranged in the middle of the bottom plate of the floating support block, the floating support block is arranged on the follow-up sliding plate [6] by a counter bore screw, but the counter bore screw is not fastened, so that the floating support block [5] can swing in a small angle. The breaker contact is fully contacted with the contact on the contact component [1] so that the breaker contact is clamped into the edge turning of the contact component [1 ].
The above description is the main component of a single circuit breaker testing device. In order to improve the testing work efficiency in practical use, the integrated circuit breaker testing device consisting of a plurality of single circuit breaker testing devices is manufactured. The follow-up sliding plate of the integrated circuit breaker testing device is a whole, is driven by two cams with handles which are arranged on a bottom plate and move back and forth along a guide rail, when the cams rotate to the maximum radius, all tested circuit breakers are reliably contacted, and the handles are simultaneously locked at fixed positions. After the test is finished, the rotating handle reaches the minimum cam radius, the follow-up sliding plate retreats under the action of the compression spring and retreats from the test position.
The invention has the advantages that:
1. the circuit breaker is only required to be manually placed on the clamp, so that the high-low temperature performance integrated test device of the circuit breaker is quickly clamped, and the assembly efficiency is improved;
2. the circuit breaker is placed on the floating support block, the floating support block is connected with the follow-up sliding plate by using a countersunk screw, and the screw is not fastened, so that the floating support block can slightly swing, the position and angle deviation of a contact of the circuit breaker can be self-adapted, and a contact gap is eliminated;
3. the contact of the circuit breaker is clamped into the flanging of the contact component, so that the maximum contact area is ensured, the circuit breaker is prevented from upwarping, and the measurement accuracy is improved;
4. the floating support block has higher mechanical and insulating properties, better heat resistance and moisture resistance, and thus has good safety;
5. the contact piece is made of a high-elasticity material, the contact area of the contact piece with a tested piece is increased, and a gold plating process is adopted to prevent the contact piece from being oxidized;
6. the structure is simple, and the test result is accurate and reliable.
Drawings
Fig. 1 is a schematic view of the assembly structure of the present invention.
Fig. 2 is a partial sectional view of the present invention for the purpose of clearly showing the structural schematic of the contact assembly and the circuit breaker and the internal structure of the hold-down spring.
Fig. 3 is a top view structural view of the present invention.
Wherein, 1 is the contact subassembly, 2 is the bottom plate, 3 is linear guide, 4 is pressure spring, 5 is the tray that floats, 6 is the follow-up slide.
Fig. 4 is an assembly schematic of the present invention.
The geometric figure of the thick solid line is a handle structure, and the handle seat are fixed on the bottom plate through screws.
Detailed Description
The present invention will be described in further detail below with reference to the attached drawings.
Referring to fig. 1, 2 and 3, the clamp device of the automatic test bed of the circuit breaker comprises a contact piece assembly [1], a bottom plate [2], a linear guide rail [3], a compression spring [4], a floating support block [5], a follow-up sliding plate [6] and other components.
The contact piece component [1] is a structural member consisting of two spring pieces and a component base, the spring pieces are arranged on two side surfaces of the component base, two round holes are formed in the surface of the part of the spring piece arranged on the side surface of the component base, the part of the spring piece is arranged on the side surface of the base through screws, the other part of the spring piece is used for contacting a contact piece on a tested piece breaker, the bending angle of the part of the spring piece is consistent with the bending angle of the contact piece of the breaker, the maximum area contact is ensured, and the.
The bottom plate (2) is a rectangular steel plate with a certain thickness, the bottom plate is provided with a plurality of counter bores for mounting parts such as a linear guide rail (3), a contact piece component (1) and the like, a plurality of round holes are uniformly distributed on two sides of the edge of the bottom plate,
the linear guide rail (3) is a standard linear guide rail pair and is arranged on the bottom plate (2), and the follow-up sliding plate (6) is arranged on the guide rail (3) through a screw.
The compression spring [4] is a structural member consisting of a spring, a bolt and a positioning block, threaded holes are formed in the top surface, the front surface and the rear surface of the positioning block, the threaded holes in the front surface and the rear surface are used for installing the positioning bolt and the spring, and the threaded holes in the top surface of the positioning block are used for connecting the floating support block [5 ].
The floating supporting block [5] is a rectangular part, a groove with a certain depth and the same appearance as the breaker is dug from the upper surface, the breaker to be tested is arranged in the groove, the interference part between the middle parts of the edges of the two ends of the groove and the breaker is removed, a counter bore is arranged in the middle of the bottom plate, the floating supporting block [5] is arranged on the follow-up sliding plate [6] by a counter bore screw, but the counter bore screw is not fastened, so that the floating supporting block [5] can swing in a small angle. The breaker contact is fully contacted with the contact on the contact component [1] so that the breaker contact is clamped into the edge turning of the contact component [1 ].
The working principle of the invention is as follows:
1. after the circuit breaker is installed, the follow-up sliding plate is pushed to enable the contact piece of the circuit breaker to be clamped into the flanging of the contact piece assembly [1], the maximum contact area is guaranteed, the contact piece of the circuit breaker is prevented from upwarping, the contact between the contact piece of the circuit breaker and the contact piece assembly is reliable, and low and stable contact resistance is guaranteed.
2. The floating support block [5] and the follow-up sliding plate are installed and positioned through bolts, the floating support block is connected with the bolts through the bolts and can rotate in a small range, the contact position of a contact of the circuit breaker and the contact assembly can be adjusted, a compression spring [4] is installed in the y direction of the floating support block and the follow-up sliding plate, the contact distance between the circuit breaker and the contact assembly is adjusted, the floating support block is stirred outwards, the contact distance between the circuit breaker and the contact assembly can be increased, and the floating support block is stirred inwards, the contact distance between the circuit breaker contact and the contact assembly contact can be reduced.

Claims (4)

1. A high-low temperature performance testing device of a circuit breaker comprises a contact piece assembly (1), a bottom plate (2), a linear guide rail (3), a compression spring (4), a floating support block (5) and a follow-up sliding plate (6); it is characterized in that
The contact piece component (1) is a structural member consisting of two reeds and a component base;
the bottom plate (2) is a rectangular steel plate with a certain thickness, the bottom plate is provided with a plurality of counter bores for mounting the linear guide rail (3) and the contact piece component (1), a plurality of round holes are uniformly distributed on two sides of the edge of the bottom plate,
the linear guide rail (3) is a standard linear guide rail pair and is arranged on the bottom plate (2), and the follow-up sliding plate (6) is arranged on the guide rail (3) through a screw;
the follow-up sliding plate (6) is provided with a notch for mounting the compression spring (4), the compression spring (4) is a structural member consisting of a spring, a bolt and a positioning block, the top surface, the front surface and the rear surface of the positioning block are provided with threaded holes, the threaded holes on the front surface and the rear surface are used for mounting the positioning bolt and the spring, and the threaded hole on the top surface of the positioning block is used for connecting the floating support block (5); the floating support block (5) is a rectangular part, a groove with a certain depth and the same shape as the circuit breaker is dug from the upper surface, the circuit breaker to be tested is arranged in the groove, the interference part between the middle parts of the edges of the two ends of the groove and the circuit breaker is removed, a counter bore is arranged in the middle of a bottom plate of the floating support block, a counter bore screw penetrates through a threaded hole on the top surface of a positioning block and is arranged on the follow-up sliding plate (6), but the counter bore screw is not fastened, so that the floating support block (5) can swing at a small angle; the breaker contact is fully contacted with the contact on the contact component (1), so that the breaker contact is clamped into the flanging of the contact component (1).
2. The high and low temperature performance testing device of the circuit breaker as claimed in claim 1, wherein:
the contact piece assembly (1) is characterized in that the contact pieces are arranged on two side surfaces of an assembly base, two round holes are formed in the surface of the part of the contact piece arranged on the side surface of the assembly base, the part of the contact piece is arranged on the side surface of the base through screws, the other part of the contact piece is used for contacting the contact piece on a tested piece breaker, the bending angle of the part of the contact piece is consistent with the bending angle of the contact piece of the breaker, the maximum area contact is ensured, and the contact gap is.
3. The high and low temperature performance testing device of the circuit breaker as claimed in claim 1, wherein:
the plurality of testing devices form an integrated circuit breaker testing device, a follow-up sliding plate of the integrated circuit breaker testing device is a whole and is driven by two cams with handles, which are arranged on a bottom plate, and move back and forth along a guide rail, when the cams rotate to the maximum radius, all tested circuit breakers are reliably contacted, and the handles are simultaneously locked at fixed positions.
4. The high and low temperature performance testing device of the circuit breaker as claimed in claim 3, wherein: after the test is finished, the handle is rotated to the minimum cam radius, the follow-up sliding plate retreats under the action of the compression spring and retreats from the test position.
CN201810774532.9A 2018-07-13 2018-07-13 High-low temperature performance testing device for circuit breaker Active CN109507573B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810774532.9A CN109507573B (en) 2018-07-13 2018-07-13 High-low temperature performance testing device for circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810774532.9A CN109507573B (en) 2018-07-13 2018-07-13 High-low temperature performance testing device for circuit breaker

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CN109507573A CN109507573A (en) 2019-03-22
CN109507573B true CN109507573B (en) 2021-06-01

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1080430A (en) * 1992-04-09 1994-01-05 Abb专利有限公司 The feeler switch device of earth leakage current circuit breaker or differential current circuit breaker
CN1431744A (en) * 2003-02-11 2003-07-23 常熟开关厂 Electrical connection mechanism used in drawable type breaker
CN2852372Y (en) * 2005-05-25 2006-12-27 王光强 Ground-fault breaker with reverse wiring protection function
CN2921837Y (en) * 2006-06-22 2007-07-11 上海亿盟电气自动化技术有限公司 Large current testing clamp head for air circuit breaker
CN200956350Y (en) * 2006-10-13 2007-10-03 Tcl低压电器(无锡)有限公司 Measuring device for residual current circuit breaker
KR101082328B1 (en) * 2011-09-29 2011-11-11 (주)시그너스시스템 Motor control center using a breaker integrated with stab connectors
JP2013150375A (en) * 2012-01-17 2013-08-01 Fuji Electric Fa Components & Systems Co Ltd Insertion/ejection operation/lock mechanism of drawer-type circuit breaker
CN203310865U (en) * 2013-05-09 2013-11-27 杭州之江开关股份有限公司 Secondary jointing clamp device for circuit breaker test
CN105448608A (en) * 2015-08-13 2016-03-30 国家电网公司 Testing releasing device for circuit breaker, and circuit breaker using the same and operating mechanism
CN106199417A (en) * 2016-08-30 2016-12-07 安徽中电兴发与鑫龙科技股份有限公司 A kind of chopper performance test fixture
CN207248514U (en) * 2017-09-29 2018-04-17 镇江加勒智慧电力科技股份有限公司 A kind of pole-mounted circuit breaker mechanical property detecting tool
CN107958819A (en) * 2017-12-27 2018-04-24 伍文谦 A kind of low-voltage circuit breaker fixing device being easily installed

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1080430A (en) * 1992-04-09 1994-01-05 Abb专利有限公司 The feeler switch device of earth leakage current circuit breaker or differential current circuit breaker
CN1431744A (en) * 2003-02-11 2003-07-23 常熟开关厂 Electrical connection mechanism used in drawable type breaker
CN2852372Y (en) * 2005-05-25 2006-12-27 王光强 Ground-fault breaker with reverse wiring protection function
CN2921837Y (en) * 2006-06-22 2007-07-11 上海亿盟电气自动化技术有限公司 Large current testing clamp head for air circuit breaker
CN200956350Y (en) * 2006-10-13 2007-10-03 Tcl低压电器(无锡)有限公司 Measuring device for residual current circuit breaker
KR101082328B1 (en) * 2011-09-29 2011-11-11 (주)시그너스시스템 Motor control center using a breaker integrated with stab connectors
JP2013150375A (en) * 2012-01-17 2013-08-01 Fuji Electric Fa Components & Systems Co Ltd Insertion/ejection operation/lock mechanism of drawer-type circuit breaker
CN203310865U (en) * 2013-05-09 2013-11-27 杭州之江开关股份有限公司 Secondary jointing clamp device for circuit breaker test
CN105448608A (en) * 2015-08-13 2016-03-30 国家电网公司 Testing releasing device for circuit breaker, and circuit breaker using the same and operating mechanism
CN106199417A (en) * 2016-08-30 2016-12-07 安徽中电兴发与鑫龙科技股份有限公司 A kind of chopper performance test fixture
CN207248514U (en) * 2017-09-29 2018-04-17 镇江加勒智慧电力科技股份有限公司 A kind of pole-mounted circuit breaker mechanical property detecting tool
CN107958819A (en) * 2017-12-27 2018-04-24 伍文谦 A kind of low-voltage circuit breaker fixing device being easily installed

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