CN210487921U - Direct current aging automatic fatigue detector for high-voltage vacuum arc-extinguishing chamber - Google Patents
Direct current aging automatic fatigue detector for high-voltage vacuum arc-extinguishing chamber Download PDFInfo
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- CN210487921U CN210487921U CN201921168904.XU CN201921168904U CN210487921U CN 210487921 U CN210487921 U CN 210487921U CN 201921168904 U CN201921168904 U CN 201921168904U CN 210487921 U CN210487921 U CN 210487921U
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Abstract
The utility model discloses a high-pressure vacuum interrupter direct current smelts automatic fatigue detection machine always relates to high-voltage electrical apparatus fatigue test device, and it is relatively poor to aim at solving the mode detection effect that the complete machine detected vacuum interrupter, and inconvenient problem relatively, and its technical scheme main points are: the method comprises the following steps: a frame; the static supporting seat is fixed on the rack and provided with an installation groove, and a conductive connector is fixed in the installation groove; the upper pressing and holding mechanism comprises a limiting pressing plate which is vertically connected to the rack in a sliding mode, a through hole for the movable conducting rod of the vacuum arc extinguish chamber to penetrate through is formed in the limiting pressing plate, a testing cylinder is fixed above the limiting pressing plate, and a pushing head used for pushing the movable conducting rod of the vacuum arc extinguish chamber is fixed at the output end of the testing cylinder; the frame is also provided with a power component for driving the limiting pressure plate to lift. The utility model discloses a high-pressure vacuum interrupter direct current smelts automatic fatigue detection machine always, it can be directly do the detection to vacuum interrupter, and relative convenient high efficiency.
Description
Technical Field
The utility model relates to a high-voltage apparatus fatigue test device, more specifically say, it relates to a high-pressure vacuum interrupter direct current smelts automatic fatigue detection machine always.
Background
The failure rate of the electronic components in the use process is a function of the use time, the failure rate can sharply rise along with the time at the initial use stage and then sharply fall, the low failure rate is kept for the rest of the use time until the service life is late, and the failure rate can not rise again, namely a bathtub curve of the product failure rate. In order to check products with high failure rate in the initial stage of use, a quality control point-aging process is provided in the product process, namely, the use condition of the products is simulated, the products are allowed to work for a period of time, and the products which fail in the period are removed, so that the quality of the products leaving factory is ensured.
The vacuum arc-extinguishing chamber is a core component of the vacuum circuit breaker, and the quality of the vacuum arc-extinguishing chamber directly influences the breaking performance of the vacuum circuit breaker. In order to ensure the quality of the vacuum arc-extinguishing chamber leaving the factory, relevant manufacturers need to perform efficient fatigue detection on the vacuum arc-extinguishing chamber leaving the factory.
Past staff adopts and assembles vacuum interrupter on the vacuum switch complete machine, and then manual operation vacuum switch does the detection to vacuum interrupter, and this kind of detection mode receives vacuum switch's quality and manual operation error's interference, and influences the detection effect, consequently needs to propose a new scheme and solves this problem.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a high pressure vacuum interrupter direct current smelts automatic fatigue detection machine always, it can be directly do the detection to vacuum interrupter, and convenient high efficiency relatively.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a high pressure vacuum interrupter direct current smelts automatic fatigue detection machine always, includes:
a frame extending vertically;
the static supporting seat is fixed on the rack and provided with an installation groove in an upper opening structure, and a conductive joint for electrically connecting the static conductive rod of the vacuum arc extinguish chamber is fixed in the installation groove;
the upper pressing and holding mechanism comprises a limiting pressing plate which is vertically connected to the rack in a sliding mode, a through hole for the movable conducting rod of the vacuum arc extinguish chamber to penetrate through is formed in the limiting pressing plate, a testing cylinder is fixed above the limiting pressing plate, the output end of the testing cylinder faces downwards, and a pushing head used for pushing the movable conducting rod of the vacuum arc extinguish chamber is fixed at the end of the testing cylinder;
the frame is also provided with a power component for driving the limiting pressure plate to lift, and the upper pressure holding mechanism is positioned above the static holding seat.
By adopting the technical scheme, a worker can place the vacuum arc-extinguishing chamber on the static supporting seat, so that the static conducting rod of the vacuum arc-extinguishing chamber is inserted into the mounting groove to realize primary positioning; a subsequent worker drives the upper pressing and holding mechanism to move downwards by using the power assembly, so that the limiting pressing plate is pressed on the upper part of the shell of the vacuum arc-extinguishing chamber, the movable conducting rod penetrates out of the through hole, the testing cylinder drives the pushing head to push the movable conducting rod of the vacuum arc-extinguishing chamber to move downwards, the movable and fixed contacts in the vacuum arc-extinguishing chamber are abutted, then the movable and fixed conducting rods are respectively electrified, and the fatigue test can be carried out by repeating the steps for many times; because the vacuum arc-extinguishing chamber does not need to be assembled to the whole machine for testing, the test device is not interfered by the quality of the whole machine, the test is relatively convenient, and the test efficiency is higher.
The utility model discloses further set up to: the frame is including the end plate that is symmetry setting from top to bottom, two vertical being fixed with the stand between the end plate, the both ends of stand are fixed in two end plates respectively, the quiet seat of holding and last pressure are held the mechanism and are located between two end plates.
Through adopting the technical scheme, the utility model discloses an integrated level is higher relatively, can reduce whole volume, and convenient transport removes and puts relatively.
The utility model discloses further set up to: the vertical sliding connection lifter plate on the stand, the lower part of lifter plate is fixed with the montant, the restriction clamp plate is fixed in the lower extreme of montant, the test cylinder is fixed in the lifter plate.
Through adopting above-mentioned technical scheme, go up to press and hold the mechanism and slide through the lifter plate and connect in the mode realization of stand and slide.
The utility model discloses further set up to: the lower part of restriction clamp plate is fixed with the centre gripping subassembly, the centre gripping subassembly includes two centre gripping cylinders that are horizontal symmetry and set up, two centre gripping cylinders are located the central axis both sides of through-hole respectively, and the piston rod is along through-hole radial movement.
Through adopting above-mentioned technical scheme, after the restriction clamp plate pressed on vacuum interrupter, the staff can control the extension of centre gripping cylinder, utilizes the centre gripping cylinder to the side butt centre gripping of vacuum interrupter, prevents that vacuum interrupter from crooked and interference test effect at the test procedure.
The utility model discloses further set up to: elastic contact blocks are respectively fixed on the piston rod end of the clamping cylinder and the lower portion of the limiting pressing plate, and the abutting surfaces of the elastic contact blocks on the piston rod end of the clamping cylinder are concave surfaces.
By adopting the technical scheme, when the clamping cylinder clamps the vacuum arc-extinguishing chamber or the limiting pressing plate presses the vacuum arc-extinguishing chamber, the elastic contact block can be used for buffering, so that the clamping cylinder or the limiting pressing plate is prevented from damaging the vacuum arc-extinguishing chamber, and the using effect is better; simultaneously because the butt face of the elastic contact block of centre gripping cylinder piston rod end is the concave surface, so the centre gripping subassembly is better relatively to vacuum interrupter's clamping effect.
The utility model discloses further set up to: the pushing head is provided with a limiting groove for inserting a movable conducting rod of the vacuum arc extinguish chamber, the longitudinal section of the limiting groove is trapezoidal, and the length of the lower bottom of the trapezoid is greater than that of the upper bottom of the trapezoid.
By adopting the technical scheme, the limiting groove can be used for guiding and limiting the movable conducting rod of the vacuum arc-extinguishing chamber, so that a worker can be guided to place the vacuum arc-extinguishing chamber, and the longitudinal section of the limiting groove is trapezoidal, so that the vacuum arc-extinguishing chamber can be guided to be finely adjusted when the vacuum arc-extinguishing chamber is pressed downwards in the testing process even if the vacuum arc-extinguishing chamber is inclined to a certain extent; the longitudinal section of restriction groove is trapezoidal simultaneously, can also improve the utility model discloses an suitability.
The utility model discloses further set up to: and a buffer cushion block is fixed at the upper end of the limiting groove.
By adopting the technical scheme, the movable conducting rod of the vacuum arc extinguish chamber can be protected by the buffer cushion block, and the damage probability to the movable conducting rod in the test process is reduced.
The utility model discloses further set up to: the power assembly comprises a lifting cylinder, and a piston rod of the lifting cylinder is fixed with a pressing mechanism.
By adopting the technical scheme, the utility model discloses a lift cylinder drives and presses holding mechanism to remove.
To sum up, the utility model discloses following beneficial effect has: be provided with quiet support and hold the seat and place vacuum interrupter, be provided with and press the casing that the mechanism pushed down, held vacuum interrupter, be provided with lift cylinder and can reciprocate to promote vacuum interrupter's the conducting rod that moves and remove, make it reset, thereby the utility model discloses can directly be fatigue test to vacuum interrupter's sound conducting rod circular telegram back, owing to needn't assemble in the complete machine test, so do not receive complete machine quality interference, and efficiency of software testing is higher relatively.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic longitudinal sectional view of the upper pressing mechanism and the static supporting seat of the present invention;
fig. 3 is a schematic structural view of the upper pressing mechanism of the present invention.
In the figure: 1. a frame; 11. an end plate; 12. a column; 13. a lifting plate; 131. a vertical rod; 2. a static supporting seat; 21. mounting grooves; 22. a conductive joint; 221. a compliant spring; 3. an upper pressing mechanism; 31. a limiting pressure plate; 311. a through hole; 32. testing the cylinder; 33. a pusher head; 331. a limiting groove; 332. buffering cushion blocks; 4. a clamping assembly; 41. a clamping cylinder; 42. an elastic contact block; 5. and a lifting cylinder.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
A direct-current aging automatic fatigue detector for a high-voltage vacuum arc-extinguishing chamber refers to fig. 1 and 2 and comprises a rack 1, a static supporting and holding seat 2 fixed at the lower part of the rack 1, an upper pressing and holding mechanism 3 positioned at the upper part of the static supporting and holding seat 2 and vertically connected to the rack 1 in a sliding manner, and a power assembly used for driving the upper pressing and holding mechanism 3 to ascend and descend.
When the device is used, the static conducting rod of the vacuum arc extinguish chamber falls down on the static supporting seat 2, the power assembly drives the upper pressing and holding mechanism 3 to press the shell of the vacuum arc extinguish chamber, then the movable conducting rod and the static conducting rod of the vacuum arc extinguish chamber are respectively conducted, for example, the static conducting rod and the movable conducting rod are input with overvoltage, and then the device can be subjected to fatigue test. Because the vacuum arc-extinguishing chamber does not need to be assembled on the whole machine for testing, the vacuum arc-extinguishing chamber is not influenced by the quality of the whole machine, and the operation is relatively convenient.
Referring to fig. 1, the frame 1 includes two end plates 11 that are vertically symmetrical, a plurality of vertical columns 12 are vertically fixed between the two end plates 11, two ends of each vertical column 12 are respectively fixed to the two end plates 11, and the plurality of vertical columns 12 are uniformly distributed to form the frame-shaped frame 1. The static supporting seat 2 and the upper pressing mechanism 3 are positioned between the upper end plate 11 and the lower end plate 11.
Referring to fig. 1 and 2, a lifting plate 13 is disposed between the two end plates 11 in parallel, and the lifting plate 13 is inserted through the column 12 and slidably connected thereto. The upper pressing and holding mechanism 3 is fixed on the lifting plate 13; the power assembly comprises a lifting cylinder 5, the cylinder body of the lifting cylinder 5 is fixed on an end plate 11 positioned on the upper part, and the end of a piston rod is fixed on a lifting plate 13, so that the lifting cylinder 5 can drive the upper pressing mechanism 3 to lift.
Referring to fig. 2 and 3, the upper holding-down mechanism 3 includes a restraining platen 31; a vertical rod 131 is fixed at the lower part of the lifting plate 13, and a limiting pressure plate 31 is fixed at the lower end of the vertical rod 131; the limiting pressure plate 31 is provided with a through hole 311 for the vacuum interrupter to pass through.
A test cylinder 32 is fixed at the lower part of the lifting plate 13, the piston rod of the test cylinder 32 faces downwards and is concentric with the through hole 311, and the end part is fixed with a pushing head 33 for pushing the movable conducting rod of the vacuum arc-extinguishing chamber.
The pushing head 33 is provided with a limiting groove 331, the limiting groove 331 is of a lower opening structure, the longitudinal section of the limiting groove 331 is trapezoidal, and the length of the lower bottom of the trapezoid is greater than that of the upper bottom. When the vacuum arc-extinguishing chamber is used, the movable conducting rod of the vacuum arc-extinguishing chamber is inserted into the limiting groove 331 so as to be pushed by the limiting groove to enable the movable contact and the fixed contact inside the vacuum arc-extinguishing chamber to be contacted. The structure of the limiting groove 331 enables the pushing head 33 to adapt to more vacuum arc-extinguishing chambers with different diameters of the conducting rod, so that the applicability is stronger.
In order to prevent the pushing head 33 from damaging the movable conductive rod of the vacuum interrupter when pushing the movable conductive rod, a buffer pad 332 is disposed on the upper surface of the limiting groove 331, and the buffer pad is made of rubber, and has a vertical projection matching with the upper portion of the limiting groove 331.
When the vacuum arc-extinguishing chamber is used, the vacuum arc-extinguishing chamber falls on the static supporting seat 2, the limiting pressing plate 31 is pressed on a shell of the vacuum arc-extinguishing chamber, and the movable conducting rod extends out of the through hole.
Referring to fig. 3, in order to prevent the vacuum interrupter from skewing and interfering with the test, a clamping assembly 4 is fixed to a lower portion of the limiting pressure plate 31. The clamping assembly 4 comprises two clamping cylinders 41 which are transversely symmetrically arranged at two sides of the through hole 311, and piston rods of the clamping cylinders 41 extend and retract along the radial direction of the through hole 311.
During testing, a worker can clamp and position the vacuum arc-extinguishing chamber by using the two clamping cylinders 41 so as to prevent the vacuum arc-extinguishing chamber from being inclined to interfere with the testing process.
Referring to fig. 3, elastic contact blocks 42 made of rubber are respectively fixed at the piston rod end of the clamping cylinder 41 and the outer edge of the lower part of the through hole 311 of the limiting pressure plate 31, and the elastic contact blocks 42 can reduce the possibility that the clamping cylinder 41 and the limiting pressure plate 31 damage the vacuum arc-extinguishing chamber. The contact surface of the elastic contact block 42 at the piston rod end of the clamping cylinder 41 is further set to be a concave surface so as to make contact with the side surface of the vacuum arc-extinguishing chamber better.
Referring to fig. 1 and 2, a static supporting seat 2 is fixed on the upper part of an end plate 11 positioned at the lower part of a frame 1 through a bolt, and is provided with an installation groove 21 with an upper opening structure, and a static conducting rod of a vacuum arc-extinguishing chamber is inserted into the installation groove 21; a cylindrical conductive contact 22 is fixed to the bottom of the mounting groove 21, and the conductive contact 22 is connected to a power supply. In order to improve the applicability of the contact block 22 to accommodate static conductive rods of different lengths, a vertically extendable and retractable accommodating spring 221 may be fixed to a lower portion of the contact block 22.
The use process comprises the following steps:
1. a worker places the vacuum arc-extinguishing chamber on the static supporting seat 2 to enable the static conductive rod to abut against the conductive connector 22;
2. controlling the lifting cylinder 5 to push the upper pressing mechanism 3 to move downwards until the limiting pressing plate 31 is close to the upper part of the shell of the vacuum arc-extinguishing chamber; at the moment, the movable conducting rod of the vacuum arc-extinguishing chamber extends out of the through hole 311;
3. controlling the clamping cylinder 41 to push the elastic contact block 42 to abut against the side wall of the vacuum arc-extinguishing chamber to complete positioning and fixing;
4. controlling the testing cylinder 32 to drive the pushing head 33 to move downwards, pushing the movable conducting rod of the vacuum arc-extinguishing chamber to move downwards, enabling the movable and fixed contacts inside the vacuum arc-extinguishing chamber to be abutted, and then driving the pushing head 33 to move back by the testing cylinder 32;
5. the staff energizes the movable conducting rod of the vacuum interrupter, the conducting joint 22, for example: the vacuum arc extinguish chamber completes one-time work due to overvoltage;
6. the above operations are repeated a plurality of times until the test is completed.
To sum up, the utility model discloses can be directly do fatigue test to vacuum interrupter, and the test effect is higher relatively. For making things convenient for the staff to control the test progress, the utility model discloses a still can install the counter on the restriction clamp plate 31, the flexible circuit of the piston rod of the probe orientation test cylinder 32 of counter. In order to improve the control precision of the cylinder, a proportional valve can be configured.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a high pressure vacuum interrupter direct current smelts automatic fatigue detection machine always which characterized in that includes:
a frame (1) extending vertically;
the static supporting seat (2) is fixed on the rack (1) and is provided with an installation groove (21) with an upper opening structure, and a conductive joint (22) used for electrically connecting a static conductive rod of the vacuum arc extinguish chamber is fixed in the installation groove (21);
the upper pressing and holding mechanism (3) comprises a limiting pressing plate (31) which is vertically connected to the rack (1) in a sliding mode, a through hole (311) for the movable conducting rod of the vacuum arc extinguish chamber to penetrate through is formed in the limiting pressing plate (31), a testing cylinder (32) is fixed above the limiting pressing plate (31), the output end of the testing cylinder (32) faces downwards, and a pushing head (33) used for pushing the movable conducting rod of the vacuum arc extinguish chamber is fixed at the end of the testing cylinder;
the frame (1) is also provided with a power assembly for driving the limiting pressure plate (31) to ascend and descend, and the upper pressure holding mechanism (3) is positioned above the static holding seat (2).
2. The direct-current aging automatic fatigue detector for the high-voltage vacuum arc-extinguishing chamber according to claim 1, characterized in that: frame (1) is including end plate (11) that are symmetry setting from top to bottom, two vertical stand (12) of being fixed with between end plate (11), two end plate (11) are fixed in respectively at the both ends of stand (12), static support is held seat (2) and is pressed on and is held mechanism (3) and be located between two end plate (11).
3. The direct-current aging automatic fatigue detector for the high-voltage vacuum arc-extinguishing chamber according to claim 2, characterized in that: the vertical sliding connection lifter plate (13) on the stand (12), the lower part of lifter plate (13) is fixed with montant (131), restriction clamp plate (31) are fixed in the lower extreme of montant (131), test cylinder (32) are fixed in lifter plate (13).
4. The direct-current aging automatic fatigue detector for the high-voltage vacuum arc-extinguishing chamber according to claim 2, characterized in that: the lower part of restriction clamp plate (31) is fixed with centre gripping subassembly (4), centre gripping subassembly (4) are two centre gripping cylinders (41) that are horizontal symmetry and set up, two centre gripping cylinders (41) are located the central axis both sides of through-hole (311) respectively, and the piston rod is along through-hole (311) radial movement.
5. The automatic fatigue detector for direct-current aging of the high-voltage vacuum arc-extinguishing chamber according to claim 4, is characterized in that: elastic contact blocks (42) are respectively fixed on the piston rod end of the clamping cylinder (41) and the lower part of the limiting pressure plate (31), and the abutting surface of the elastic contact blocks (42) on the piston rod end of the clamping cylinder (41) is a concave surface.
6. The automatic fatigue detector for direct-current aging of the high-voltage vacuum arc-extinguishing chamber according to claim 3, characterized in that: the pushing head (33) is provided with a limiting groove (331) for inserting a movable conducting rod of the vacuum arc-extinguishing chamber, the longitudinal section of the limiting groove (331) is trapezoidal, and the length of the lower bottom of the trapezoid is greater than that of the upper bottom of the trapezoid.
7. The automatic fatigue detector for direct-current aging of the high-voltage vacuum arc-extinguishing chamber according to claim 6, characterized in that: and a buffer cushion block (332) is fixed at the upper end of the limiting groove (331).
8. The direct-current aging automatic fatigue detector for the high-voltage vacuum arc-extinguishing chamber according to claim 1, characterized in that: the power assembly comprises a lifting cylinder (5), and a piston rod of the lifting cylinder (5) is fixed with a pressing mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168904.XU CN210487921U (en) | 2019-07-22 | 2019-07-22 | Direct current aging automatic fatigue detector for high-voltage vacuum arc-extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921168904.XU CN210487921U (en) | 2019-07-22 | 2019-07-22 | Direct current aging automatic fatigue detector for high-voltage vacuum arc-extinguishing chamber |
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| CN210487921U true CN210487921U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921168904.XU Active CN210487921U (en) | 2019-07-22 | 2019-07-22 | Direct current aging automatic fatigue detector for high-voltage vacuum arc-extinguishing chamber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960399A (en) * | 2021-10-27 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vacuum arc-extinguishing chamber test system for transformer on-load tap-changer and method thereof |
| CN116539218A (en) * | 2023-04-25 | 2023-08-04 | 湖北大禹汉光真空电器有限公司 | Vacuum degree detection device and detection method for vacuum arc extinguishing chamber |
-
2019
- 2019-07-22 CN CN201921168904.XU patent/CN210487921U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113960399A (en) * | 2021-10-27 | 2022-01-21 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Vacuum arc-extinguishing chamber test system for transformer on-load tap-changer and method thereof |
| CN116539218A (en) * | 2023-04-25 | 2023-08-04 | 湖北大禹汉光真空电器有限公司 | Vacuum degree detection device and detection method for vacuum arc extinguishing chamber |
| CN116539218B (en) * | 2023-04-25 | 2023-12-08 | 湖北大禹汉光真空电器有限公司 | Vacuum degree detection device and detection method for vacuum arc extinguishing chamber |
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