CN106323530B - Device for testing opening and closing bite force of circuit breaker - Google Patents
Device for testing opening and closing bite force of circuit breaker Download PDFInfo
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- CN106323530B CN106323530B CN201610997378.2A CN201610997378A CN106323530B CN 106323530 B CN106323530 B CN 106323530B CN 201610997378 A CN201610997378 A CN 201610997378A CN 106323530 B CN106323530 B CN 106323530B
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- disc spring
- connector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a device for testing the closing and opening bite force of a breaker, which comprises a fixed frame, a disc spring reset assembly, a transmission shaft, a first connector and a second connector, wherein the disc spring reset assembly comprises a hinge seat, a disc spring mounting column and a fixed shaft, the hinge seat is fixedly arranged on the fixed frame, one end of the disc spring mounting column is movably connected with the hinge seat, the other end of the disc spring mounting column is sleeved on the fixed shaft and is fixedly connected with the fixed shaft, the disc spring is sleeved on the fixed shaft and is arranged in the disc spring mounting column, the lower end of the fixed shaft is connected with the first connector, the first connector is connected with the transmission shaft, the transmission shaft is arranged on the fixed frame, and the second connector is connected with the transmission shaft. The device for testing the opening and closing biting force of the circuit breaker can realize the detection of the biting force by being connected with the circuit breaker, thereby playing a role in monitoring the size of the biting force and meeting the requirement of the biting force.
Description
Technical Field
The invention relates to the field of circuit breakers, in particular to a device for testing the opening and closing bite force of a circuit breaker.
Background
The circuit breaker refers to a switching device capable of closing, carrying and opening/closing a current under a normal circuit condition and capable of closing, carrying and opening/closing a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.
In the three-station circuit breaker in the prior art, the requirements of acting forces between a blade and an upper baffle and between the blade and a lower baffle are different when people are used for switching on and switching off, so that a technician is difficult to determine the requirements, and the requirements cannot be well met, so that cost is likely to be wasted.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the invention provides a device for testing the opening and closing biting force of a circuit breaker, which aims to solve the problems that the acting force requirements of a blade and an upper baffle and a lower baffle are different when a breaker is closed and opened and the requirements are difficult to determine by a technician.
The technical scheme adopted by the invention for solving the technical problems is as follows: a device for testing the closing and opening bite force of a circuit breaker comprises a fixing frame, a disc spring reset assembly, a transmission shaft, a first connector and a second connector, wherein the disc spring reset assembly comprises a hinge seat, a disc spring mounting column and a fixing shaft, the hinge seat is fixedly arranged on the fixing frame, one end of the disc spring mounting column is movably connected with the hinge seat, the other end of the disc spring mounting column is sleeved on the fixing shaft and is fixedly connected with the fixing shaft, the disc spring is sleeved on the fixing shaft and is arranged in the disc spring mounting column, the lower end of the fixing shaft is connected with the first connector, the first connector is connected with the transmission shaft, the transmission shaft is arranged on the fixing frame, and the second connector is connected with the transmission shaft;
preferably, the lower portion of the hinge seat is provided with two limiting plates, a first through hole is formed in each limiting plate, a hinged end is arranged on the upper portion of each disc spring mounting column, a second through hole is formed in each hinged end, each hinged end is arranged between the two limiting plates, and the first through hole is connected with the second through hole through a first pin shaft.
Preferably, the disc spring mounting column further comprises a hollow main body, the upper end of the hollow main body is fixedly connected with the hinged end, and the vertical movable distance of the first pin shaft relative to the hinged end is equal to the distance from the hollow main body to the bottom of the hinge seat.
Preferably, a first cavity and a second cavity are arranged in the hollow main body, the first cavity is used for arranging the fixing shaft sleeved with the disc spring, and the second cavity is communicated with the first cavity.
Preferably, the first connector is provided with a third through hole and a spline hole, the lower end of the fixed shaft is provided with a fourth through hole, the third through hole is connected with the fourth through hole through a second pin shaft, the transmission shaft is provided with a spline shaft section, and the spline hole is connected with the spline shaft section in a matched mode.
Preferably, the second connector includes a fixed end and a free end connected with the circuit breaker transmission device, the fixed end with free end fixed connection, the fixed end with the transmission shaft is connected.
The device for testing the opening and closing biting force of the circuit breaker has the advantages that the device can be connected with the circuit breaker to detect the biting force, so that the function of monitoring the size of the biting force is achieved, and the requirement of the biting force is met.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the device for testing the opening and closing biting force of the circuit breaker.
Fig. 2 is a schematic structural view of a preferred embodiment of the disc spring return assembly of the present invention.
Fig. 3 is a schematic structural view of a preferred embodiment of the first connector of the present invention.
FIG. 4 is a schematic structural view of a preferred embodiment of the hinge base of the present invention.
In the figure, 1, a fixing frame, 2, a second connector, 3, a transmission shaft, 4, a disc spring resetting component, 5, a first connector, 40, a first pin shaft, 41, a second through hole, 42, a hollow main body, 43, a first cavity, 44, a fixing shaft, 45, a hinge seat, 46, a hinge end, 47, a second cavity, 48, a disc spring, 49, a fourth through hole, 451, a limiting plate, 452, a first through hole, a1, a spline hole, a2 and a third through hole are arranged.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 and 2, the present invention provides a device for testing engaging and disengaging brake snap force of a circuit breaker, comprising a fixed frame 1, a disc spring reset assembly 4, a transmission shaft 3, a first connector 5 and a second connector 2, wherein the disc spring reset assembly 4 comprises a hinge base 45, a disc spring 48, a disc spring mounting post and a fixed shaft 44, the hinge base 45 is fixedly arranged on the fixed frame 1, one end of the disc spring mounting post is movably connected with the hinge base 45, the other end is sleeved on the fixed shaft 44 and is fixedly connected with the fixed shaft 44, the disc spring 48 is sleeved on the fixed shaft 44 and is arranged inside the disc spring mounting post, the lower end of the fixed shaft 44 is connected with the first connector 5, the first connector 5 is connected with the transmission shaft 3, the transmission shaft 3 is arranged on the fixed frame 1, the second connector 2 is connected with the transmission shaft 3, the disc spring reset assemblies 4 are three in total and are respectively fixedly connected on the fixed frame 1 and the transmission shaft 3, after the second connector 2 is connected to the three-position circuit breaker. The breaker works to drive the second connector 2, the transmission shaft 3, the first connector 5 and the fixed shaft 44 to move in sequence, and the disc spring 48 is compressed. The number of disc springs 48 is 25, the fixed shaft 44 is in a free state for force measurement in the disc spring resetting assembly 4, when the disc spring is compressed for 3mm, the pressure measured on the spring force measuring machine is 2400 +/-200N, 1 detection is carried out after 4000 times of testing, the disc springs 48 are replaced if the requirement is not met, in the whole process, the disc springs 48 guarantee the closing counter force required by the breaker, the disc spring mounting columns can guarantee resetting through the opening springs on the breaker, and in the testing process, if the breaker is directly from the closing state to the grounding state, the breaker is unqualified.
As shown in fig. 4, two limiting plates 451 are disposed on the lower portion of the hinge seat 45, a first through hole 452 is disposed on the limiting plates 451, a hinge end 46 is disposed on the upper portion of the disc spring mounting post, a second through hole 41 is disposed on the hinge end 46, the hinge end 46 is disposed between the two limiting plates 451, and the first through hole 452 is connected to the second through hole 41 through a first pin 40.
The disc spring mounting column further comprises a hollow main body 42, the upper end of the hollow main body 42 is fixedly connected with a hinge end 46, and the vertical moving distance of the first pin shaft 40 relative to the hinge end 46 is equal to the distance from the hollow main body 42 to the bottom of the hinge seat 45.
The hollow main body 42 is internally provided with a first cavity 43 and a second cavity 47, the first cavity 43 is used for arranging a fixed shaft 44 on which a disc spring 48 is sleeved, and the second cavity 47 is communicated with the first cavity 43. This design provides sufficient compression space for the disc spring 48 and sufficient damping space.
As shown in fig. 3, the first connector 5 is provided with a third through hole a2 and a spline hole a1, the lower end of the fixed shaft 44 is provided with a fourth through hole 49, the third through hole a2 and the fourth through hole 49 are connected by a second pin shaft, the transmission shaft 3 is provided with a spline shaft section, and the spline hole a1 is in matched connection with the spline shaft section.
The second connector 2 comprises a fixed end and a free end connected with the circuit breaker transmission equipment, the fixed end is fixedly connected with the free end, and the fixed end is connected with the transmission shaft 3. This kind of design through the design of spline hole a1 cooperation spline shaft section, can realize fine fixed effect, and the free end of second connector 2 is connected with the rotation center of the blade in the circuit breaker, realizes interlock control.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a device for testing circuit breaker divide-shut brake bite power which characterized in that: comprises a fixed frame (1), a disc spring reset component (4), a transmission shaft (3), a first connector (5) and a second connector (2), wherein the disc spring reset component (4) comprises a hinge seat (45), a disc spring (48), a disc spring mounting column and a fixed shaft (44), the hinge seat (45) is fixedly arranged on the fixed frame (1), one end of the disc spring mounting column is movably connected with the hinge seat (45), the other end of the disc spring mounting column is sleeved on the fixed shaft (44) and is fixedly connected with the fixed shaft (44), the disc spring (48) is sleeved on the fixed shaft (44) and is arranged in the disc spring mounting column, the lower end of the fixed shaft (44) is connected with the first connector (5), the first connector (5) is connected with the transmission shaft (3), the transmission shaft (3) is arranged on the fixed frame (1), the second connector (2) is coupled with the transmission shaft (3);
hinge seat (45) lower part is equipped with two limiting plate (451), first through-hole (452) have been seted up on limiting plate (451), the upper portion of dish spring erection column is equipped with articulated end (46), second through-hole (41) have been seted up on articulated end (46), articulated end (46) set up between two limiting plate (451) and first through-hole (452) with second through-hole (41) are connected through first round pin axle (40).
2. The apparatus for testing circuit breaker opening and closing bite force of claim 1, wherein: the disc spring mounting column further comprises a hollow main body (42), the upper end of the hollow main body (42) is fixedly connected with the hinged end (46), and the vertical moving distance of the first pin shaft (40) relative to the hinged end (46) is equal to the distance from the hollow main body (42) to the bottom of the hinge seat (45).
3. The apparatus for testing circuit breaker opening and closing bite force according to claim 2, wherein: the disc spring fixing device is characterized in that a first cavity (43) and a second cavity (47) are arranged inside the hollow main body (42), the first cavity (43) is used for arranging the fixing shaft (44) which is provided with the disc spring (48) in a sleeved mode, and the second cavity (47) is communicated with the first cavity (43).
4. The apparatus for testing circuit breaker opening and closing bite force according to claim 3, wherein: be equipped with third through-hole (a 2) and splined hole (a 1) on first connector (5), the lower extreme of fixed axle (44) is equipped with fourth through-hole (49), third through-hole (a 2) with fourth through-hole (49) are through second round pin hub connection, be equipped with the spline shaft section on transmission shaft (3), splined hole (a 1) with spline shaft section accordant connection.
5. The apparatus for testing circuit breaker opening and closing bite force according to claim 4, wherein: the second connector (2) comprises a fixed end and a free end connected with the circuit breaker transmission equipment, the fixed end is fixedly connected with the free end, and the fixed end is connected with the transmission shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997378.2A CN106323530B (en) | 2016-11-11 | 2016-11-11 | Device for testing opening and closing bite force of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997378.2A CN106323530B (en) | 2016-11-11 | 2016-11-11 | Device for testing opening and closing bite force of circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106323530A CN106323530A (en) | 2017-01-11 |
| CN106323530B true CN106323530B (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997378.2A Active CN106323530B (en) | 2016-11-11 | 2016-11-11 | Device for testing opening and closing bite force of circuit breaker |
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| CN (1) | CN106323530B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108692852B (en) * | 2018-08-10 | 2023-11-03 | 无锡铭方科技有限公司 | ACB (active ingredient) testing mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100517539C (en) * | 2006-12-31 | 2009-07-22 | 中国西电电气股份有限公司 | Hydraulic pressure disc spring energy storing device for high-voltage breaker |
| GB0820415D0 (en) * | 2008-11-07 | 2008-12-17 | Ea Tech Ltd | Improvements in or relating to industrial circuit breakers (MCB) |
| KR101068757B1 (en) * | 2009-12-31 | 2011-09-28 | 엘에스산전 주식회사 | Plug interlock device for vacuum circuit breaker |
| CN203132747U (en) * | 2012-12-21 | 2013-08-14 | 常州森源力拓开关有限公司 | Online measurement device of contact pressure of circuit breaker contact |
| JP6121254B2 (en) * | 2013-06-14 | 2017-04-26 | 丸善工業株式会社 | Impact strength judgment device |
| CN105845518A (en) * | 2016-05-27 | 2016-08-10 | 宁波耐森电气科技有限公司 | Structure of symmetrically arranging breaking springs on transmission shaft of circuit breaker switch |
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