Inspection tool for high-voltage switch circuit breaker arc contact
By designing inspection tooling for arc contacts for high-voltage switch circuit breakers, the bending problem caused by poor assembly of arc contacts is solved, and the assembly quality and operating reliability and life of circuit breakers are improved.
Patent Information
- Application Number
- CN202422426761.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-09
AI Technical Summary
In the prior art, the arc contacts of high-voltage circuit breakers are prone to bend due to poor alignment during assembly, which affects the operation and life of the circuit breaker, and lacks effective inspection tooling.
A test tool for arc contacts for high-voltage switch circuit breakers is designed, including components such as bottom plate, arc contact base, detection plate and clamp insertion. By positioning and setting the detection plate with the arc contact base, the straightness of arc contacts can be effectively checked and the assembly quality can be ensured.
It improves the assembly quality of arc contacts and ensures the operating reliability and life of the circuit breaker.
Smart Images
Figure CN223166076U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-voltage switches, and particularly to an inspection tooling for arc contacts of high-voltage switch circuit breakers. Background Technique
[0002] In a high-voltage circuit breaker, arc contacts are mainly used to bear the electric arc generated during the opening and closing of the switch. When the circuit breaker is closed, the closing speed is very fast, which will cause an impact on the arc contacts. And the arc contacts of the circuit breaker are assembled. If the centering is not good, it will cause bending, affecting the operation and service life of the circuit breaker. An inspection tooling for the arc contacts is needed. Summary of the Invention
[0003] The utility model aims to overcome the deficiencies of the prior art and provides an inspection tooling for arc contacts of high-voltage switch circuit breakers.
[0004] To achieve the above object, an inspection tooling for arc contacts of high-voltage switch circuit breakers is designed, which includes a bottom plate. An arc contact base is arranged on the bottom plate. A positioning hole is arranged above the arc contact base. A column is fixed on one side of the bottom plate. A detection plate is fixed on the side surface of the column. A top plate is fixed above the column. A through hole coaxial with the positioning hole is opened on the top plate. A clamping insert is arranged in the through hole. The lower part of the clamping insert is connected with the top of the arc contact. The bottom of the arc contact is inserted into the positioning hole.
[0005] A first pin hole is arranged above the clamping insert. A second pin hole is arranged in the middle of the clamping insert. A first plug pin is inserted into the first pin hole or the second pin hole.
[0006] A bent part is arranged at one end of the first plug pin.
[0007] A groove is opened at the lower part of the clamping insert. The top of the arc contact is embedded in the groove. Third pin holes are arranged on both sides of the groove. A connecting hole is arranged at the top of the arc contact. A second plug pin passes through the third pin holes and the connecting hole.
[0008] A first bearing is arranged between the arc contact base and the bottom plate. A first bearing cover is fixed above the bottom plate.
[0009] A second bearing is arranged in the through hole of the top plate. The clamping insert is in sliding fit with the inner hole of the second bearing. A second bearing cover is fixed above the top plate.
[0010] Compared with the prior art, the utility model can effectively inspect the straightness of the arc contact, improve the assembly quality, and ensure the operation and service life of the circuit breaker by positioning the clamping insert with the arc contact base and arranging the detection plate. Brief Description of the Drawings
[0011] Figure 1 It is a schematic diagram of the utility model.
[0012] Figure 3 It is the front view of the utility model.
[0013] Figure 2 This is a cross-sectional view of the present utility model.
[0014] Figure 4 This is a schematic diagram of the arc contact.
[0015] Figure 5 This is a schematic diagram of the first use state of the present utility model.
[0016] Figure 6 This is a schematic diagram of the second use state of the present utility model.
[0017] Figure 7 This is a schematic diagram of the first plug pin.
[0018] Figure 8 This is a schematic diagram of the second plug pin.
[0019] Refer to Figures 1 - 8 , in which, 1 is the bottom plate, 2 is the arc contact base, 2-1 is the positioning hole, 3 is the column, 4 is the detection plate, 5 is the top plate, 6 is the clamping insert, 6-1 is the first pin hole, 6-2 is the second pin hole, 6-3 is the third pin hole, 6-4 is the groove, 7 is the first bearing, 8 is the first bearing cover, 9 is the second bearing, 10 is the second bearing cover, 11 is the first plug pin, 11-1 is the bending part, 12 is the second plug pin, 13 is the arc contact, and 13-1 is the connection hole. Specific embodiments
[0020] The following further describes the present utility model with reference to the drawings.
[0021] As Figures 1 - 8 shown, an arc contact base 2 is provided on the bottom plate 1, a positioning hole 2-1 is provided above the arc contact base 2, a column 3 is fixed on one side of the bottom plate 1, a detection plate 4 is fixed on the side of the column 3, a top plate 5 is fixed above the column 3, a through hole coaxial with the positioning hole 2-1 is opened on the top plate 5, a clamping insert 6 is arranged in the through hole, the lower part of the clamping insert 6 is connected to the top of the arc contact 13, and the bottom of the arc contact 13 is inserted into the positioning hole 2-1. The bottom of the arc contact 13 is inserted into the positioning hole 2-1 for positioning, and the top is connected to the clamping insert 6. The detection plate 4 is designed and installed according to the maximum material profile allowed by the assembled arc contact 13. The clamping insert 6 rotates in the through hole and drives the arc contact 13 to rotate. If there is no interference between the detection plate 4 and the side of the arc contact 13, the inspection is qualified; if there is interference, the inspection is unqualified and the arc contact 13 needs to be corrected.
[0022] A first pin hole 6-1 is provided above the clamping insert 6, a second pin hole 6-2 is provided in the middle of the clamping insert 6, and the first plug pin 11 is inserted into the first pin hole 6-1 or the second pin hole 6-2. When the first plug pin 11 is inserted into the first pin hole 6-1, the clamping insert 6 can be driven to rotate by the first plug pin 11; when the first plug pin 11 is inserted into the second pin hole 6-2, the height of the clamping insert 6 can be limited to facilitate the installation of the arc contact 13. AsFigure 7 As shown, one end of the first bolt 11 can be provided with a bent portion 11-1, which is convenient for manually operating the insertion and extraction of the first bolt 11 and driving the clamping insert 6 to rotate.
[0023] A groove 6-4 is opened below the clamping insert 6, the top of the arc contact 13 is embedded in the groove 6-4, pin holes three 6-3 are provided on both sides of the groove 6-4, a connection hole 13-1 is provided at the top of the arc contact 13, and the second bolt 12 passes through the pin holes three 6-3 and the connection hole 13-1. The arc contact 13 is positioned by the groove 6-4 and the second bolt 12, so that the arc contact 13 and the clamping insert 6 can only rotate relative to each other around the second bolt 12, and can be completely positioned at the center of the arc contact 13 in cooperation with the positioning hole 2-1.
[0024] A first bearing 7 is provided between the arc contact base 2 and the bottom plate 1, and a first bearing cover 8 is fixed above the bottom plate 1. The first bearing 7 can make the arc contact base 2 rotate with the arc contact 13 during inspection, so that the arc contact 13 rotates more flexibly and smoothly during detection. The first bearing cover 8 is used to protect the first bearing 7, and a through hole is opened in the middle of the first bearing cover 8 so that the arc contact 13 can pass through the first bearing cover 8.
[0025] A second bearing 9 is provided in the through hole of the top plate 5, and the clamping insert 6 is in sliding fit with the inner hole of the second bearing 9. A second bearing cover 10 is fixed above the top plate 5. The second bearing 9 can make the clamping insert 6 rotate more flexibly and smoothly. The sliding fit between the clamping insert 6 and the inner hole of the second bearing 9 is convenient for the up and down movement of the clamping insert 6, and can ensure the concentricity during rotation. The second bearing cover 10 is provided with a through hole so that the clamping insert 6 can pass through the second bearing cover 10.
[0026] When the utility model is in use, first as Figure 5 shown, insert the first bolt 11 into the second pin hole 6-2, the clamping insert 6 is limited at the upper part of the top plate 5, then insert the top of the arc contact 13 into the groove 6-4, and insert the second bolt 12 into the third pin hole 6-3 and the connection hole 13-1. Then pull out the first bolt 11, as Figure 6 shown, align the bottom of the arc contact 13 and insert it into the positioning hole 2-1, then insert the first bolt 11 into the first pin hole 6-1, drive the clamping insert 6 to rotate through the first bolt 11, thereby driving the arc contact 13 to rotate. The first bearing 7 and the second bearing 9 can make the clamping insert 6 and the arc contact 13 rotate more flexibly and smoothly, and judge whether the arc contact 13 is qualified according to whether the arc contact 13 interferes with the detection plate 4.
Claims
1. An inspection tooling for the arc contacts of a high-voltage switch circuit breaker, comprising a bottom plate (1), characterized in that: An arc contact base (2) is provided on the bottom plate (1). A positioning hole (2-1) is provided above the arc contact base (2). A column (3) is fixed on one side of the bottom plate (1). A detection plate (4) is fixed on the side surface of the column (3). A top plate (5) is fixed above the column (3). The top plate (5) is provided with a through hole coaxial with the positioning hole (2-1). A clamping insert (6) is arranged in the through hole. The lower part of the clamping insert (6) is connected to the top of the arc contact (13). The bottom of the arc contact (13) is inserted into the positioning hole (2-1).
2. The inspection tooling for the arc contact of a high-voltage switch circuit breaker according to claim 1, characterized in that: A first pin hole (6-1) is provided above the clamping insert (6). A second pin hole (6-2) is provided in the middle of the clamping insert (6). A first pin (11) is inserted into the first pin hole (6-1) or the second pin hole (6-2).
3. The inspection tooling for the arc contact of a high-voltage switch circuit breaker according to claim 1, characterized in that: A groove (6-4) is provided below the clamping insert (6). The top of the arc contact (13) is embedded in the groove (6-4). Third pin holes (6-3) are provided on both sides of the groove (6-4). A connection hole (13-1) is provided on the top of the arc contact (13). A second pin (12) passes through the third pin holes (6-3) and the connection hole (13-1).
4. The inspection tooling for the arc contact of a high-voltage switch circuit breaker according to claim 1, characterized in that: A first bearing (7) is provided between the arc contact base (2) and the bottom plate (1). A first bearing cover (8) is fixed above the bottom plate (1).
5. The inspection tooling for the arc contact of a high-voltage switch circuit breaker according to claim 1, characterized in that: A second bearing (9) is provided in the through hole of the top plate (5). The clamping insert (6) is in sliding fit with the inner hole of the second bearing (9). A second bearing cover (10) is fixed above the top plate (5).