A GIS circuit breaker energy storage spring fatigue test mechanism
Patent Information
- Application Number
- CN202522468607.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-21
AI Technical Summary
针对现有技术的不足，本实用新型克服上述背景技术中在对GIS断路器的储能弹簧进行疲劳测试测试时，现有技术对GIS断路器的储能弹簧安装较为繁琐，增加了试验操作劳动强度的问题
（1）在对GIS断路器的储能弹簧进行安装时，只需要将GIS断路器的储能弹簧放入到让位孔中，再通过调节升降板和伸缩柱，并通过限位杆对GIS断路器的储能弹簧顶部进行限位，操作简单，降低疲劳试验的操作劳动强度。
Smart Images
Figure CN224921410U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fatigue testing technology for energy storage springs of GIS circuit breakers, and specifically to a fatigue testing mechanism for energy storage springs of GIS circuit breakers. Background Technology
[0002] In GIS (Gas Insulated Metal Enclosed Switchgear), circuit breakers need to perform opening (disconnecting the circuit) or closing (connecting the circuit) operations at extremely high speeds (typically within tens of milliseconds). To provide this enormous, instantaneous mechanical energy, an energy storage mechanism is required. The energy storage spring is the core component of this mechanism.
[0003] In simple terms, the energy storage spring of a GIS circuit breaker is a mechanical component that stores a huge amount of elastic potential energy after being compressed or stretched. When operation is required, it releases the energy instantly to drive the moving contact of the circuit breaker to complete the opening / closing action.
[0004] When conducting fatigue tests on the energy storage springs of GIS circuit breakers, the existing technology for installing the energy storage springs of GIS circuit breakers is quite cumbersome, increasing the labor intensity of the test operation. To address this, we propose a fatigue testing mechanism for the energy storage springs of GIS circuit breakers. Utility Model Content
[0005] (a) Technical problems to be solved In view of the shortcomings of the prior art, the present invention overcomes the problem that the installation of the energy storage spring of the GIS circuit breaker is cumbersome and increases the labor intensity of the test operation when conducting fatigue tests on the energy storage spring of the GIS circuit breaker.
[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: A fatigue testing mechanism for energy storage springs of GIS circuit breakers, comprising: The test platform is a platform with counterweights; The GIS circuit breaker energy storage spring mounting assembly is installed at the top center of the test base. The GIS circuit breaker energy storage spring mounting assembly is used to install the energy storage spring of the GIS circuit breaker to be tested. The drive assembly is fixedly installed on the top of the test base, and the drive assembly cyclically drives the GIS circuit breaker energy storage spring mounting assembly.
[0007] Further defining the above technical solution, a hydraulic cylinder is fixedly installed at the center of the inner cavity of the test base, and the top telescopic end of the hydraulic cylinder passes through the top center of the test base. The GIS circuit breaker energy storage spring mounting assembly is fixedly installed on the top of the hydraulic cylinder.
[0008] Further defining the above technical solution, the GIS circuit breaker energy storage spring mounting assembly includes a base plate, which is fixedly installed on the top of the hydraulic cylinder. Limiting posts are fixedly installed at the four corners of the base plate, and a limiting groove is fixedly installed at the center of the top of the base plate. A telescopic post is fixedly installed at the center of the inner cavity of the limiting groove. A limiting through hole is opened on the outer circumference of the top telescopic end of the telescopic post, and the limiting through hole penetrates the top telescopic end of the telescopic post.
[0009] Further defining the above technical solution, a lifting plate is movably installed on the top of the base plate, and the four corners of the lifting plate are movably sleeved on four sets of limiting posts. A clearance hole is opened at the center of the top of the lifting plate, and an installation through hole is opened in the middle of the front side wall of the lifting plate, which is connected to the clearance hole. A threaded hole is opened on the rear side of the inner circumferential side wall of the clearance hole. A limiting rod is movably inserted into the front side of the installation through hole. Lower pressure plates are symmetrically fixedly installed on the left and right sides of the top of the lifting plate, and a drive groove is opened on the top of the lower pressure plate.
[0010] Further defining the above technical solution, the central axes of the mounting through hole, the limiting through hole, and the threaded hole are on a straight line, and the outer diameters of the mounting through hole, the limiting through hole, and the threaded hole are matched with the limiting rod. The end of the limiting rod that is close to the lifting plate is provided with an external thread that matches the threaded hole.
[0011] Further defining the above technical solution, the drive assembly includes a right bracket fixedly installed on the right side of the top of the test base and a left bracket fixedly installed on the left side of the top of the test base. A drive motor is fixedly installed on the right side of the right bracket, and a rotating shaft is fixedly installed on the left power output end of the drive motor. The rotating shaft passes through the right bracket, and the left end of the rotating shaft is rotatably connected to the left bracket. Two sets of drive cams are fixedly sleeved on the outer circumference of the rotating shaft, and the drive cams cooperate with the drive grooves.
[0012] As a further limitation of the above technical solution, a rotating handle is fixedly installed at the end of the limit rod away from the lifting plate.
[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides a fatigue testing mechanism for the energy storage spring of a GIS circuit breaker, which has the following beneficial effects: (1) When installing the energy storage spring of the GIS circuit breaker, simply put the energy storage spring of the GIS circuit breaker into the clearance hole, and then adjust the lifting plate and telescopic column, and limit the top of the energy storage spring of the GIS circuit breaker by the limit rod. The operation is simple and reduces the labor intensity of fatigue test.
[0014] (2) By lifting the GIS circuit breaker energy storage spring mounting assembly with a hydraulic cylinder, the height of the base plate from the rotating shaft can be adjusted, thereby increasing the downward pressure distance of the drive cam on the GIS circuit breaker energy storage spring. This adjustment can be made according to the needs of fatigue testing to better adapt to the fatigue test of the GIS circuit breaker energy storage spring. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the energy storage spring mounting assembly and drive assembly of the present invention when the GIS circuit breaker is not installed. Figure 3 This is a schematic diagram of the energy storage spring mounting assembly of the GIS circuit breaker according to this utility model; Figure 4 This is a schematic diagram of the top structure of the base plate of this utility model.
[0017] The components include: 1. Test base; 101. Hydraulic cylinder; 2. GIS circuit breaker energy storage spring mounting assembly; 201. Base plate; 202. Limiting post; 203. Limiting groove; 204. Telescopic post; 205. Limiting through hole; 206. Lifting plate; 207. Clearance hole; 208. Mounting through hole; 209. Threaded hole; 210. Limiting rod; 211. Lower pressure plate; 212. Drive groove; 3. Drive assembly; 301. Right bracket; 301. Left bracket; 303. Drive motor; 304. Rotating shaft; 305. Drive cam. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.
[0019] Example 1: This example provides a fatigue testing mechanism for the energy storage spring of a GIS circuit breaker, such as... Figure 1 , 3 As shown in Figure 4, the existing technology for fatigue testing of the energy storage spring of GIS circuit breaker is relatively complicated to install, which increases the labor intensity of the test operation. The test base 1 is a base with counterweight. The GIS circuit breaker energy storage spring mounting assembly 2 is installed at the top center of the test base 1. The GIS circuit breaker energy storage spring mounting assembly 2 is used to install the energy storage spring of the GIS circuit breaker to be tested. The GIS circuit breaker energy storage spring mounting assembly 2 includes a base plate 201, which is fixedly installed on the top of the hydraulic cylinder 101. Limiting posts 202 are fixedly installed at the four corners of the base plate 201. A limiting groove 203 is fixedly installed at the top center of the base plate 201. A telescopic post 204 is fixedly installed at the center of the inner cavity of the limiting groove 203. A limiting through hole 205 is opened on the outer circumference of the top telescopic end of the telescopic post 204, and the limiting through hole 205 penetrates the top telescopic end of the telescopic post 204. A lifting plate 206 is movably installed on the top of the base plate 201, and the four corners of the lifting plate 206 are movably sleeved on four sets of limiting posts 202. A clearance hole 207 is opened at the center of the top of the lifting plate 206, and an installation through hole 208 is opened in the middle of the front side wall of the lifting plate 206. The installation through hole 208 is connected to the clearance hole 207. A threaded hole 209 is opened on the rear side of the inner circumferential side wall of the clearance hole 207. A limiting rod 210 is movably inserted into the front side of the installation through hole 208. A lower pressure plate 211 is symmetrically fixedly installed on the left and right sides of the top of the lifting plate 206. A drive groove 212 is opened on the top of the lower pressure plate 211. The central axes of the mounting through hole 208, the limiting through hole 205, and the threaded hole 209 are on a straight line, and the outer diameters of the mounting through hole 208, the limiting through hole 205, and the threaded hole 209 are matched with the limiting rod 210. The end of the limiting rod 210 that is close to the lifting plate 206 is provided with an external thread that matches the threaded hole 209. The drive assembly 3 includes a right bracket 301 fixedly installed on the right side of the top of the test base 1 and a left bracket 302 fixedly installed on the left side of the top of the test base 1. A drive motor 303 is fixedly installed on the right side of the right bracket 301. A rotating shaft 304 is fixedly installed on the left power output end of the drive motor 303. The rotating shaft 304 passes through the right bracket 301 and is rotatably connected to the left bracket 302. The rotating shaft 304 is rotatably connected to the right bracket 301 and to the left bracket 302 through bearings. Two sets of parallel drive cams 305 are fixedly sleeved on the outer circumference of the rotating shaft 304 and the drive cams 305 cooperate with the drive groove 212. A rotating handle is fixedly installed at the end of the limit rod 210 away from the lifting plate 206; Drive component 3 is fixedly installed on the top of test base 1, and drive component 3 cyclically drives GIS circuit breaker energy storage spring mounting component 2.
[0020] Based on the above features, the working principle of this utility model is as follows: During fatigue testing, the limiting rod 210 is pulled out, opening the clearance hole 207. The energy storage spring of the GIS circuit breaker is then placed into the clearance hole 207 until the bottom of the energy storage spring enters the limiting groove 203, and the energy storage spring is sleeved on the outer circumference of the telescopic column 204. Then, the lifting plate 206 and the telescopic column 204 are manually adjusted until the lifting plate 206 reaches the top of the energy storage spring of the GIS circuit breaker. Finally, the limiting rod 210 is inserted, penetrating the limiting through hole 205, until the limiting rod 210 is screwed in. The installation is stable in the threaded hole 209. The top of the energy storage spring of the GIS circuit breaker is limited by the limit rod 210, and the bottom is limited by the base plate 201. The telescopic column 204 can ensure that the energy storage spring of the GIS circuit breaker can move vertically along the telescopic column 204. Thus, when installing the energy storage spring of the GIS circuit breaker, it is only necessary to put the energy storage spring of the GIS circuit breaker into the clearance hole 207, and then adjust the lifting plate 206 and the telescopic column 204, and limit the top of the energy storage spring of the GIS circuit breaker by the limit rod 210. The operation is simple and reduces the labor intensity of fatigue testing.
[0021] The drive assembly 3 then operates, specifically the drive motor 303 on the right side of the right bracket 301, which causes the rotating shaft 304 to drive the two sets of drive cams 305 to rotate. Due to the irregular arc structure of the drive cam 305, the outer side of the drive cam 305 changes with the lower pressure plate 211, causing the drive cam 305 to cyclically squeeze and relax the lifting plate 206 during rotation. This causes the lifting plate 206 to rise and fall along the limit post 202, and the limit rod 210 cyclically presses down and relaxes the energy storage spring of the GIS circuit breaker to achieve fatigue testing.
[0022] The drive groove 212 on the top of the lower pressure plate 211 cooperates with the drive cam 305 to limit the drive cam 305 and ensure the rotational stability of the drive cam 305. Furthermore, by having two sets of drive cams 305 simultaneously push against the lower pressure plate 211, the lifting plate 206 can be subjected to more even force, which in turn makes the energy storage spring of the GIS circuit breaker subjected to more even force.
[0023] Example 2: Figure 1 , 2As shown, this embodiment is based on the above implementation, and the technical problem solved by this embodiment compared with the above embodiment 1 is: how to adjust the range of compression of the GIS circuit breaker energy storage spring. The difference from the above embodiment is that: a hydraulic cylinder 101 is fixedly installed at the center of the inner cavity of the test base 1, and the top extension end of the hydraulic cylinder 101 passes through the top center of the test base 1. The GIS circuit breaker energy storage spring mounting assembly 2 is fixedly installed on the top of the hydraulic cylinder 101.
[0024] Based on the above features, the working principle of this utility model is as follows: the hydraulic cylinder 101 lifts the GIS circuit breaker energy storage spring mounting assembly 2, which can adjust the height of the base plate 201 from the rotating shaft 304, thereby increasing the downward pressure distance of the drive cam 305 on the GIS circuit breaker energy storage spring. This adjustment is made according to the needs of fatigue testing, and better adapts to the fatigue test of the GIS circuit breaker energy storage spring.
[0025] The above description is a further detailed explanation of the present invention in conjunction with specific preferred embodiments, which is intended to enable those skilled in the art to understand and apply the present invention. However, it should not be assumed that the specific implementation of the present invention is limited to these descriptions.
Claims
1. A fatigue testing mechanism for energy storage springs of GIS circuit breakers, characterized in that, include The test platform is a platform with counterweights; The GIS circuit breaker energy storage spring mounting assembly is installed at the top center of the test base. The GIS circuit breaker energy storage spring mounting assembly is used to install the energy storage spring of the GIS circuit breaker to be tested. The drive assembly is fixedly installed on the top of the test base and cyclically drives the GIS circuit breaker energy storage spring mounting assembly.
2. The fatigue testing mechanism for the energy storage spring of a GIS circuit breaker according to claim 1, characterized in that, A hydraulic cylinder is fixedly installed at the center of the inner cavity of the test base, and the top telescopic end of the hydraulic cylinder passes through the top center of the test base. The GIS circuit breaker energy storage spring mounting assembly is fixedly installed on the top of the hydraulic cylinder.
3. The fatigue testing mechanism for the energy storage spring of a GIS circuit breaker according to claim 2, characterized in that, The GIS circuit breaker energy storage spring mounting assembly includes a base plate, which is fixedly installed on the top of the hydraulic cylinder. Limiting posts are fixedly installed at the four corners of the base plate, and a limiting groove is fixedly installed at the center of the top of the base plate. A telescopic post is fixedly installed at the center of the inner cavity of the limiting groove. A limiting through hole is opened on the outer circumference of the top telescopic end of the telescopic post, and the limiting through hole penetrates the top telescopic end of the telescopic post.
4. The fatigue testing mechanism for the energy storage spring of a GIS circuit breaker according to claim 3, characterized in that, A lifting plate is movably installed on the top of the base plate, and the four corners of the lifting plate are movably sleeved on four sets of limit posts. A clearance hole is opened through the lifting plate at the center of the top of the lifting plate. An installation through hole is opened in the middle of the front side wall of the lifting plate, and the installation through hole is connected to the clearance hole. A threaded hole is opened on the rear side of the inner circumferential side wall of the clearance hole. A limit rod is movably inserted into the front side of the installation through hole. Lower pressure plates are symmetrically fixedly installed on the left and right sides of the top of the lifting plate, and a drive groove is opened on the top of the lower pressure plate.
5. The fatigue testing mechanism for the energy storage spring of a GIS circuit breaker according to claim 4, characterized in that, The central axes of the mounting through hole, the limiting through hole, and the threaded hole are on a straight line, and the outer diameters of the mounting through hole, the limiting through hole, and the threaded hole are matched with the limiting rod. The end of the limiting rod that is close to the lifting plate is provided with an external thread that matches the threaded hole.
6. The fatigue testing mechanism for the energy storage spring of a GIS circuit breaker according to claim 5, characterized in that, The drive assembly includes a right bracket fixedly installed on the right side of the top of the test base and a left bracket fixedly installed on the left side of the top of the test base. A drive motor is fixedly installed on the right side of the right bracket, and a rotating shaft is fixedly installed on the left power output end of the drive motor. The rotating shaft passes through the right bracket, and the left end of the rotating shaft is rotatably connected to the left bracket. Two sets of drive cams are fixedly sleeved on the outer circumference of the rotating shaft, and the drive cams cooperate with the drive grooves.
7. The fatigue testing mechanism for the energy storage spring of a GIS circuit breaker according to claim 5, characterized in that, A rotating handle is fixedly installed at the end of the limit rod away from the lifting plate.