CN110045254A - A kind of multistation insulating bar segmented pressure test device - Google Patents

Abstract

The invention discloses a multi-station insulation rod segmented withstand voltage test device. A plurality of ground electrode seats are arranged on the base, and the support rods of the base are used to fix a voltage equalizing ring, and the voltage equalizing ring is connected with a high-voltage power supply. A test platform is arranged between the pressure rings, and a plurality of high-voltage output electrodes corresponding to the plurality of ground electrode seats on the base are arranged on the test platform, and a leakage current collection device is arranged on each of the high-voltage output electrodes, and each Corresponding to one of the ground electrode bases, the test platform and the pressure equalizing ring are electrically connected through a high-voltage line, and a plurality of insulating rods to be tested can be installed at the same time. Segmented withstand voltage test or withstand voltage test of different lengths, the test data of each insulation rod to be tested is collected through each leakage current acquisition device. The device has a simple structure, can measure multiple insulation rods to be tested at the same time, and can achieve different Measurement of highly insulated rods.

Description

A multi-station insulation rod segmented withstand voltage test device

technical field

The invention belongs to the field of electric equipment detection, in particular to a multi-station insulation rod segmented withstand voltage test device.

Background technique

The insulating rod is a necessary safety tool for the operation and maintenance of the power system. According to DL/T1746-2015 "Provisional Test Regulations for Electrical Safety Tools and Appliances", the insulating rod is a cycle every 1 year. sex trials to test its safety and effectiveness. In the power frequency withstand voltage test, the distance between the two pressure electrodes should be set according to the specified requirements. Since the insulating rod is a tool used in large quantities, the amount of testing once a year is very large. The existing insulating rod testing equipment fixes the pressure electrodes at both ends of the insulating rod. If the length of the withstand voltage test of the insulating rod needs to be changed, it must be Re-fixing the pressurized electrodes on each insulating rod is inefficient and cannot meet the withstand voltage test of a large number of insulating rods.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention proposes a multi-position insulating rod segmented withstand voltage test device, which can perform segmental withstand voltage tests or different length withstand voltage tests on a large number of insulating rods at one time.

In order to achieve the above object, the present invention adopts the following technical solutions to solve it.

A multi-station insulation rod segmented withstand voltage test device, comprising a base and a test platform, a plurality of ground electrode bases are arranged on the base, a support rod is vertically arranged on the base, and a pressure equalizing ring is arranged on the upper end of the support rod. The pressure ring is connected with the high voltage power supply;

The test platform is installed between the base and the pressure equalizing ring through a lifting device. The test platform is provided with a plurality of high-voltage output electrodes corresponding to the plurality of ground electrode seats on the base, and each high-voltage output electrode is provided with a leakage current a collection device, the test platform is electrically connected with the voltage equalizing ring;

The base is provided with a grounding rod hinged with one end of the base, and the grounding rod can rotate relative to the base to be in contact with the pressure equalizing ring.

Further, the ground electrode base is provided with an embracing clip for supporting the insulating rod to be tested.

Further, electric foam is arranged on the side of the encircling clip in contact with the insulating rod to be tested.

Further, the embracing clip adopts two symmetrically arranged clamping rods, both ends of the clamping rods are rotatably mounted on the base, and a torsion spring is provided at the rotational connection between the clamping rod and the base.

Further, a swing control device is arranged between the lower end of the grounding rod and the base.

Further, the swing control device has a connecting rod and a swing motor, the main shaft of the swing motor is connected with a crank, the end of the crank is hinged with one end of the connecting rod, and the other end of the connecting rod is hinged on the ground rod.

Further, the lifting device includes a lead screw vertically arranged on the base, two ends of the lead screw are respectively rotatably connected with the base and the pressure equalizing ring, the base is provided with a driving motor for driving the lead screw to rotate, and the test platform is threadedly matched with the lead screw. transmission.

Further, two parallel lead screws are arranged on the base, and the two lead screws are both threaded with the test platform for transmission, and the lower ends of the two lead screws are provided with a synchronous pulley. Belt drive.

Further, the pressure equalizing ring is provided with a horizontal frame, the horizontal frame is fixedly connected with the upper end of the support rod, and the upper end of the lead screw is rotatably connected to the horizontal frame.

Further, a length scale is marked on the support rod, a pointer is provided on the test platform, and the pointer points to the length scale on the support rod.

Compared with the prior art, the present invention has the following beneficial technical effects:

The invention is a multi-station insulation rod segmented withstand voltage test device. By setting a base, a test platform and a grounding rod; a plurality of grounding electrode seats are arranged on the base, and a pressure equalizing ring is fixed by the support rod of the base, and the voltage equalizing The ring is connected with a high-voltage power supply, a test platform is set between the base and the pressure equalizing ring, a plurality of high-voltage output electrodes corresponding to the multiple ground electrode seats on the base are set on the test platform, and each high-voltage output electrode is set A leakage current collection device, each of the high-voltage output electrodes is corresponding to one of the ground electrode bases, and the test platform and the voltage equalizing ring are electrically connected through a high-voltage line, which can simultaneously install a plurality of insulating rods to be tested, The test platform is driven downward by the lifting device, which can realize the segmented withstand voltage test of the insulating rod or the withstand voltage test of different lengths. The test data of each insulating rod to be tested is collected through each leakage current acquisition device. The device has a simple structure. , easy to use, can measure a plurality of insulating rods to be tested at the same time, and can realize the measurement of insulating rods of different heights.

Before the withstand voltage test of the insulating rod, first drive the grounding rod to swing inward through the swing control device, so that the upper end of the grounding rod is in contact with the pressure equalizing ring, and then vertically fix multiple insulating rods on the grounding electrode holder, and then The test platform is driven downward by the lifting device, so that the upper ends of all insulating rods are in contact with the corresponding high-voltage output electrodes on the test platform, and then the upper ends of the grounding rods are kept away from the pressure equalizing ring to ensure that the grounding electrode seat and the high-voltage output electrode are connected during installation. The voltage is balanced between the two to ensure the safety of installation. Finally, the high-voltage power is connected to the voltage equalizing ring, and the leakage current collection device on the test platform is used to monitor whether there is leakage current on each insulating rod, which is safe and reliable.

Further, an embracing clip is arranged on the grounding electrode base to realize the fixed installation of insulating rods of different specifications and types. After the embracing clip is energized, the embracing clip can hold the lower end of the insulating rod tightly so that it is in good contact with the grounding motor base.

The multi-position insulating rod segment withstand voltage test device of the present invention can test a large number of insulating rods at one time, is more convenient to install and disassemble the insulating rods, and can adjust the withstand voltage test length of the insulating rods at any time.

Further, the lifting and lowering of the test platform is controlled simultaneously by two lead screws to ensure the stability of the lifting platform.

Further, the support rod is marked with a length scale, and the test platform is provided with a pointer, which is convenient for precise adjustment of different heights, and it is convenient for the experimenter to determine the withstand voltage test length of the insulating rod.

Description of drawings

Fig. 1 is the forward structure schematic diagram of the present invention;

FIG. 2 is a schematic side view of the structure of FIG. 1 .

In the figure: 1. base; 101, ground electrode seat; 102, encircling clip; 2, support rod; 3, equalizing ring; 301, horizontal frame; 4, test platform; 401, high voltage output electrode; 5, ground rod; 6. Lead screw; 7. Drive motor; 8. Synchronous pulley; 9. Synchronous transmission belt; 10. Connecting rod; 11. Swing motor; 12. Pointer.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is described in further detail:

In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Referring to FIGS. 1 and 2, a multi-position insulating rod segmented withstand voltage test device includes a base 1, a test platform 4 and a grounding rod 5; the base 1 is provided with a plurality of grounding electrode bases 101, 1 is vertically arranged with a support rod 2, the upper end of the support rod 2 is connected with a pressure equalizing ring 3, and the pressure equalizing ring 3 is connected with a high-voltage power supply; the test platform 4 is arranged between the base 1 and the pressure equalizing ring 3, and the base 1 is provided with a lifting device for controlling the lifting and lowering of the test platform 4. The test platform 4 is provided with a plurality of high-voltage output electrodes 401 corresponding to the plurality of ground electrode holders 101 on the base 1, and each high-voltage output electrode 401 is provided with a plurality of high-voltage output electrodes 401. There is a leakage current collecting device, and each high-voltage output electrode 401 corresponds to a grounding electrode base 101 , and the test platform 4 and the voltage equalizing ring 3 are electrically connected through a high-voltage line; the lower end of the grounding rod 5 is hinged to one end of the base 1 , the upper end of the grounding rod 5 can be in contact with the outside of the pressure equalizing ring 3 , and a swing device is provided between the lower end of the grounding rod 5 and the base 1 . An embracing clip 102 is arranged on the ground electrode holder 101 , and electric foam is arranged on the inner side of the encircling clip 102 .

In the above embodiment, the base 1 and the test platform 4 are both in the shape of a cuboid, the two ends of the test platform 4 along the length direction are connected to the lifting device, and the plurality of ground electrode holders 101 are symmetrically arranged on both sides of the base 1. Correspondingly, many The high-voltage output electrodes 401 are symmetrically arranged on both sides of the test platform 4 . Before the withstand voltage test of the insulating rod, first drive the grounding rod 5 to swing inward through the swing control device, so that the upper end of the grounding rod 5 is in contact with the pressure equalizing ring 3, and then vertically fix the plurality of insulating rods on the grounding electrode holder. 101, and then drive the test platform 4 to move downward through the lifting device, so that the upper ends of all insulating rods are in contact with the corresponding high-voltage output electrodes 401 on the test platform 4, and then the upper ends of the grounding rods 5 are kept away from the pressure equalizing ring 3, and finally go to The voltage equalizing ring 3 is connected to the high-voltage power, and the leakage current collecting device on the test platform 4 is used to monitor whether there is leakage current on each insulating rod, and judge whether the insulating rod is qualified. Since the test platform 4 can move up and down, it is also possible to perform a segmented withstand voltage test or a withstand voltage test of different lengths on the insulating rod. In order to ensure the safety of the test personnel, a separate experimental console will be set up from the test device, and the leakage current acquisition device can transmit the test data to the experimental console through infrared signals. Different specifications and types of insulating rods have different thicknesses. In order to make the lower end of the insulating rods and the grounding electrode base 101 in close contact with different specifications and types, an embracing clip 102 can be set on the grounding electrode base 101, and the embracing clip 102 can be adapted to different thicknesses. After the encircling clip 102 is energized, the encircling clip 102 can hold the lower end of the insulating pole tightly, so that it is in good contact with the grounded motor base. The multi-position insulating rod segment withstand voltage test device of the present invention can test a large number of insulating rods at one time, is more convenient to install and disassemble the insulating rods, and can adjust the withstand voltage test length of the insulating rods at any time.

Referring to FIG. 1 , according to an embodiment of the present invention, the lifting device includes: two lead screws 6 and a drive motor 7 , and the two lead screws 6 are respectively rotatably assembled on the base 1 and the pressure equalizing ring 3, the test platform 4 is threadedly matched with two of the lead screws 6, the lower ends of each of the lead screws 6 are respectively provided with a synchronous pulley 8, and a synchronous pulley is sleeved between the two synchronous pulleys 8. A transmission belt 9, the main shaft of the drive motor 7 is connected with the lower end of one of the lead screws 6, and the two lead screws are synchronously driven to make the test platform rise and fall smoothly.

In the above embodiment, after the driving motor 7 is powered on, it can directly drive one lead screw 6 to rotate through the main shaft. When the two lead screws 6 rotate synchronously in situ, the test platform 4 that is threadedly matched with the two lead screws 6 rises or falls in the vertical direction driven by the threads on the lead screws 6, so as to adjust The vertical height of the test platform 4 .

1 and 2 , according to an embodiment of the present invention, a horizontal frame 301 is provided on the pressure equalizing ring 3 , and the horizontal frame 301 is fixedly connected with the upper end of the support rod 2 . The upper end is axially rotatably connected to the horizontal frame 301 .

In the above embodiment, the horizontal frame 301 is fixedly connected to the inner side of the pressure equalizing ring 3, the upper end of the support rod 2 is fixedly connected to the horizontal frame 301, and a bearing is provided between the upper end of the lead screw 6 and the horizontal frame 301, and the lead screw 6 can be Rotate in place relative to the horizontal frame 301 .

1, according to an embodiment of the present invention, the swing control device includes: a connecting rod 10 and a swing motor 11, a crank is connected to the main shaft of the swing motor 11, and the end of the crank is connected to the connection One end of the rod 10 is hinged, and the other end of the connecting rod 10 is hinged on the grounding rod 5. The motor can swing freely when the motor is not powered on. The grounding rod 5 is inclined to the outside under its own gravity, and the motor is connected to the main shaft. The crank is connected with the grounding rod 5 through the connecting rod 10, so that the upper end of the grounding rod 5 is suspended and separated from the pressure equalizing ring 3. When the motor is powered on, the motor drives the grounding rod 5 through the crank and the connecting rod 10. The inner side swings so that the upper end of the grounding rod 5 is in contact with the pressure equalizing ring 3, so that the equalizing ring 3 is directly grounded.

Referring to FIG. 1 , according to an embodiment of the present invention, the support rod 2 is marked with a length scale, and the test platform 4 is provided with a pointer 12 .

In the above embodiment, when the test platform 4 is moved along the lead screw 6 by the lifting device, the pointer 12 indicates the length scale on the support rod 2, which is convenient for the experimenter to determine the withstand voltage test length of the insulating rod.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (10)

1. A multi-position insulating rod segmented withstand voltage test device, characterized in that it comprises a base (1) and a test platform (4), the base (1) is provided with a plurality of ground electrode holders (101), the base ( 1) A support rod (2) is vertically arranged thereon, a pressure equalization ring (3) is arranged on the upper end of the support rod (2), and the pressure equalization ring (3) is connected with the high-voltage power supply; The test platform (4) is installed between the base (1) and the pressure equalizing ring (3) through a lifting device, and the test platform (4) is provided with a plurality of ground electrode seats (101) connected to the base (1). ) corresponding high-voltage output electrodes (401), each high-voltage output electrode (401) is provided with a leakage current acquisition device, and the test platform (4) is electrically connected with the voltage equalizing ring (3); The base (1) is provided with a grounding rod (5) hinged with one end of the base (1), and the grounding rod (5) can rotate relative to the base (1) to contact the pressure equalizing ring (3). 2 . The multi-station insulating rod segmented withstand voltage test device according to claim 1 , wherein the ground electrode seat ( 101 ) is provided with an embracing clip ( 102 ) for holding the insulating rod to be tested. 3 . 3 . The multi-station insulating rod segmented withstand voltage test device according to claim 2 , characterized in that, electric foam is provided on the side of the encircling clip ( 102 ) in contact with the insulating rod to be tested. 4 . 4. The multi-station insulating rod segmented withstand voltage test device according to claim 2 or 3, wherein the embracing clamp (102) adopts two symmetrically arranged clamping rods, and both ends of the clamping rods are rotated and installed On the base (1), a torsion spring is provided at the rotational connection between the clamping rod and the base (1). 5 . The multi-position insulating rod segmented withstand voltage test device according to claim 1 , wherein a swing control device is provided between the lower end of the ground rod ( 5 ) and the base ( 1 ). 6 . 6. The multi-position insulating rod segmented withstand voltage test device according to claim 5, wherein the swing control device connecting rod (10) and the swing motor (11) are connected with a main shaft of the swing motor (11). A crank, the end of the crank is hinged with one end of the connecting rod (10), and the other end of the connecting rod (10) is hinged on the ground rod (5). 7. The multi-position insulating rod segmented withstand voltage test device according to claim 1, wherein the lifting device comprises a lead screw (6) vertically arranged on the base (1), and two parts of the lead screw (6) are arranged vertically. The ends are respectively rotatably connected with the base (1) and the pressure equalizing ring (3). The base (1) is provided with a drive motor (7) for driving the lead screw (6) to rotate, and the test platform (4) is connected to the lead screw (6). Threaded drive. 8. The multi-position insulating rod segmented withstand voltage test device according to claim 7, wherein the base (1) is provided with two parallel lead screws (6), the two lead screws (6) Both of them cooperate with the test platform (4) for threaded transmission, the lower ends of the two lead screws (6) are provided with a synchronous pulley (8), and the two synchronous pulleys (8) are driven by a synchronous transmission belt (9). 9 . The multi-station insulating rod segmented withstand voltage test device according to claim 7 , wherein the pressure equalizing ring (3) is provided with a horizontal frame (301), the horizontal frame (301) and the support rod (2). ) is fixedly connected, and the upper end of the lead screw (6) is rotatably connected to the horizontal frame (301). 10. The multi-position insulating rod segmented withstand voltage test device according to claim 1, wherein the support rod (2) is marked with a length scale, and the test platform (4) is provided with a pointer (12), the pointer (12) Point to the length scale on the support rod (2).