Isolation sphere gap device for transverse direct current superposition impact test system

Abstract

The utility model relates to the technical field of electrical test equipment, in particular to an isolation sphere gap device for a transverse direct current superposition impact test system. According to the technical scheme, the device comprises a base, a fixed platform, a movable platform, a supporting device and a driving device, the fixed platform and the movable platform are both arranged on the base and are both connected with an ignition ball through the supporting device, the driving device is arranged on the base, and the driving device is arranged on the base. The driving device is used for driving the movable platform to move so as to adjust the distance between the two ignition balls. The driving device drives the movable platform to move, so that the movable platform moves, the distance between the supporting device and the ignition ball is further adjusted, the ignition distance is controlled, the breakdown distance is more conveniently tested, and compared with a traditional vertical testing device, the testing device is small in occupied area and easier to control.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical test equipment technical field especially relates to the isolation ball gap device for horizontal type direct current superimposed impact test system. BACKGROUND

[0002] The direct current superimposed impact test device is a kind of equipment for testing the insulation performance and the ability to withstand transient overvoltage of electrical equipment.This device simulates the transient overvoltage situation that may be encountered in actual operation by applying a stable direct current voltage to the tested equipment and superimposing an impact voltage with specific parameters (such as amplitude, waveform, etc.).

[0003] During the test, the isolation ball gap device is usually used for testing, and the isolation ball gap device of the current direct current superimposed impact test system is usually vertical, which occupies a large area and is not conducive to adjusting the spacing between the ignition balls. UTILITY MODEL CONTENT

[0004] In view of the problems in the background art, the utility model provides a horizontal type direct current superimposed impact test device which can conveniently control the spacing between ignition balls and reduce the occupied area.

[0005] The technical scheme of the utility model: the isolation ball gap device for horizontal type direct current superimposed impact test system, including base, fixed platform, movable platform, support device and drive device, the fixed platform and the movable platform are arranged on the base, the fixed platform and the movable platform are connected with ignition ball through the support device respectively, the drive device is arranged on the base, and the drive device is used to drive the movable platform to move, so as to adjust the spacing between two ignition balls.

[0006] Preferably, the support device includes a flange seat, a support cylinder and a transition connector, the flange seat is used to connect with the fixed platform or the movable platform, the support cylinder is installed on the top of the flange seat and is coaxially arranged with the flange seat, and the transition connector is installed on the top of the support cylinder and is used to connect with the ignition ball.

[0007] Preferably, the drive device includes a reduction motor, a ball screw and a ball nut, the reduction motor is fixed on the base, one end of the ball screw is fixed on the output end of the reduction motor through a shaft coupling, the ball nut is matched with the ball screw, and the ball screw is embedded in the movable platform.

[0008] Preferably, the movable platform is provided with rollers on both sides, and the movable platform can walk along the driving direction of the drive device through the rollers.

[0009] Preferably, at least one set of guide structures is arranged on the base, and the movable platform moves along the guide structures when the driving device drives the movable platform to move.

[0010] Preferably, the guide structures comprise two guide rod fixing seats fixed to the surface of the base, and a guide rod penetrating through the movable platform is arranged between the two guide rod fixing seats.

[0011] Preferably, the fixed platform is fixed to the surface of the base.

[0012] Preferably, the base is provided with lockable moving devices at the bottom.

[0013] Preferably, the ignition ball is provided with a pressure equalizing ring.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model discloses a driving device drives the movable platform to move, so that the movable platform moves, further adjusts the interval between the support device and the ignition ball, and further controls the ignition distance, and more conveniently tests the breakdown distance, and compared with the traditional vertical type test device, the land area is small and is easier to control. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the three-dimensional structure schematic view of the horizontal type direct current superimposed impact test device in the embodiment of the utility model;

[0017] Fig. 2 It is the front view of the horizontal type direct current superimposed impact test device in the embodiment of the utility model;

[0018] Fig. 3 It is the plan view of the horizontal type direct current superimposed impact test device in the embodiment of the utility model.

[0019] The figure sign: 1 is base;2 is fixed platform;3 is flange seat;4 is support cylinder;5 is ignition ball;6 is pressure equalizing ring;7 is transition connecting piece;8 is guide rod;9 is ball screw;10 is guide rod fixing seat;11 is ball screw fixing seat;12 is shaft coupling;13 is speed reducer motor;14 is movable platform;15 is gyro wheel;16 is guide nylon cover;17 is ball nut. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0021] In the description of the utility model, it needs to explain, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal" "internal", "external", "front", "back" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model.

[0022] As Figs. 1 to 3 Indicated, the utility model discloses a horizontal direct current superimposed impact test system with isolation ball gap device, including base 1, fixed platform 2, movable platform 14, support device and drive arrangement, and fixed platform 2 and movable platform 14 are all set up on base 1, and fixed platform 2 and movable platform 14 are all connected with ignition ball 5 through support device respectively, and drive arrangement is set up on base 1, and drive arrangement is used to drive movable platform 14 to move, to adjust the interval between two ignition balls 5.

[0023] In the scheme, movable platform 14 is moved by drive arrangement, so that movable platform 14 moves, and the interval between support device and ignition ball 5 is further adjusted, and then ignition distance is controlled, and breakdown distance is more conveniently tested, and compared with traditional vertical test device, the floor area is small and more easily controlled.

[0024] In the embodiment, support device includes flange seat 3, support cylinder 4 and transition connecting piece 7, flange seat 3 is used for being connected with fixed platform 2 or movable platform 14, support cylinder 4 is installed at the top of flange seat 3 and is coaxially arranged with flange seat 3, and transition connecting piece 7 is installed at the top of support cylinder 4 and is used for being connected with ignition ball 5.

[0025] First, it needs to be explained that fixed platform 2 is fixed on the surface of base 1 to fix one of ignition ball 5, flange seat 3 is fixed on fixed platform 2 or movable platform 14 by fastener, for example, nut, support cylinder 4 is used to support ignition ball 5 and make ignition ball 5 at a certain height, and transition connecting piece 7 is used to connect ignition ball 5 and support cylinder 4. Since movable platform 14 is movable, the interval between ignition ball 5 can be adjusted at a certain height. It needs to be further explained that equalizing ring 6 is arranged on ignition ball 5. In high-voltage test equipment, especially near high-voltage terminal, local discharge or uneven electric field distribution may be caused due to electric field concentration, and equalizing ring 6 is designed to improve electric field distribution.

[0026] Further, the driving device comprises a speed reducer 13, a ball screw 9 and a ball nut 17. The speed reducer 13 is fixed on the base 1. One end of the ball screw 9 is fixed on the output end of the speed reducer 13 through a coupling 12. A ball screw mounting seat 11 is arranged on the base 1. The other end of the ball screw 9 is mounted on the ball screw mounting seat 11. The ball nut 17 cooperates with the ball screw 9. The ball screw 9 is embedded in the movable platform 14.

[0027] Specifically, the speed reducer 13 drives the ball screw 9 to rotate under the action of the coupling 12, so as to move the movable platform 14 along the driving direction of the driving device through cooperation with the ball nut 17, thereby realizing the movement of the movable platform 14 and adjusting the distance between the spark balls 5. It should be noted that, since the high-voltage breakdown needs to be far away, the control device of the driving device can be arranged far away, such as in a control room, to ensure the safety of the test.

[0028] Further, the movable platform 14 is provided with a roller 15 on both sides. The movable platform 14 can move along the driving direction of the driving device through the roller 15. Since the movable platform 14 and the base 1 are in a relatively movable state, the movement of the movable platform 14 is smoother and the resistance during movement is reduced through the driving device driving the movable platform 14 to move.

[0029] Further, the base 1 is provided with at least one set of guide structure. When the driving device drives the movable platform 14 to move, the movable platform 14 moves along the guide structure. Through the guide structure, the movable platform 14 moves along the direction of the guide structure during movement and moves more stably.

[0030] Specifically, the guide structure comprises two guide rod fixing seats 10 fixed on the surface of the base 1. The two guide rod fixing seats 10 are provided with a guide rod 8 penetrating the movable platform 14.

[0031] During movement, the movable platform 14 moves along the guide rod 8, so that the fixed platform 2 and the movable platform 14 move closer to each other. In this embodiment, a guide nylon sleeve 16 is arranged in the movable platform 14. The guide rod 8 penetrates the guide nylon sleeve 16, so that the movable platform 14 can move through the guide nylon sleeve 16. As an optional embodiment, the bottom of the base 1 is provided with a lockable moving device, so that the test device can be conveniently moved and fixed.

[0032] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection", "arrangement" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, can be directly connected, also can be indirectly connected through the intermediate medium.

[0033] The above specific embodiments are only one or several preferred embodiments of the utility model, and based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An isolation ball gap device for a horizontal DC superimposed impact test system, characterized in that: The application relates to a device for adjusting the distance between two ignition balls, which comprises a base, a fixed platform, a movable platform, a supporting device and a driving device, wherein the fixed platform and the movable platform are arranged on the base, the fixed platform and the movable platform are respectively connected with the ignition balls through the supporting device, the driving device is arranged on the base, and the driving device is used for driving the movable platform to move so as to adjust the distance between the two ignition balls.

2. The isolated sphere gap device for a crosswise DC superimposed impulse test system according to claim 1, characterized in that The supporting device comprises a flange seat, a supporting cylinder and a transition connecting piece, the flange seat is used for being connected with the fixed platform or the movable platform, the supporting cylinder is arranged on the top of the flange seat and coaxially arranged with the flange seat, and the transition connecting piece is arranged on the top of the supporting cylinder and used for being connected with the ignition ball.

3. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 1, characterized in that The driving device comprises a speed reducer, a ball screw and a ball nut, the speed reducer is fixed on the base, one end of the ball screw is fixed on the output end of the speed reducer through a shaft coupling, the ball nut is matched with the ball screw, and the ball screw is embedded in the movable platform.

4. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 3, characterized in that Rollers are arranged on the two sides of the movable platform, and the movable platform can move along the driving direction of the driving device through the rollers.

5. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 3, characterized in that At least one set of guide structures is arranged on the base, and the movable platform moves along the guide structures when the driving device drives the movable platform to move.

6. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 5, characterized in that The guide structures comprise two guide rod fixing seats fixed on the surface of the base, and guide rods penetrating through the movable platform are arranged between the two guide rod fixing seats.

7. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 1, characterized in that The fixed platform is fixed on the surface of the base.

8. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 1, characterized in that The base is provided with lockable moving devices at the bottom.

9. The isolated sphere gap apparatus for use in a crosswise DC superimposed impulse test system according to claim 1, characterized in that The ignition ball is provided with an equalizing ring.

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