CN210665933U

CN210665933U - High-voltage testing machine

Info

Publication number: CN210665933U
Application number: CN201921352737.4U
Authority: CN
Inventors: 申利
Original assignee: Shenzhen Dingertai Technology Co Ltd
Current assignee: Shenzhen Dingertai Technology Co Ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-06-02
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses a high-pressure test machine relates to high-pressure test technical field, comprises a workbench, high-pressure test machine body and testboard have been placed to the top of workstation, the positive fixed mounting of high-pressure test machine body has display screen, switch and voltage regulation knob, high-pressure connecting hole and earth connection potential hole have been seted up on the right side of high-pressure test machine body, the right side fixed mounting of high-pressure test machine body has self-locking motor. This high voltage test machine utilizes self-locking motor and gear revolve to drive rack and backup pad, can adjust the height of first test head and first probe, the second probe is fixed in the inside of testboard simultaneously, utilize the spring can effectively extrude the measured object, make the measured object fixed completely between first probe and second probe, can adjust the size of test voltage through voltage regulation knob, can adjust the height of test head according to the size of test object, the condition that current device can only detect single sample has been solved.

Description

High-voltage testing machine

Technical Field

The utility model relates to a high-voltage testing technical field specifically is a high-pressure test machine.

Background

High voltage tester, also called electrical insulation strength tester, applies a specified ac or dc high voltage between the live part and the non-live part (generally casing) of an electrical appliance to test the withstand voltage capability of the insulation material of the electrical appliance, which is in long-term operation, not only the rated operating voltage, but also the overvoltage which causes short-time higher than the rated operating voltage during operation (the overvoltage value may be several times higher than the rated operating voltage), under the action of these voltages, the internal structure of the electrically insulating material will change, and when the overvoltage reaches a certain value, the insulation of the material can be broken down, the electric appliance can not normally run, an operator can get an electric shock to endanger personal safety, and the main test indexes of the electric safety comprise alternating current/direct current withstand voltage, insulation resistance, leakage current and the like.

For general tested equipment, the withstand voltage test is to measure the leakage current value between the live wire and the enclosure, the basic rule is that the working voltage which is twice as high as the tested object and 1000V are taken as the standard voltage of the test, the test voltage of part of products is possibly higher than the specified value, according to the rule of IEC61010, the test voltage must be gradually increased to the required test voltage value (for example, 5 kV) within 5s, the test voltage value is ensured to be stably added on the tested insulator for no less than 5s, at this time, the leakage current value of the tested loop is compared with the leakage current threshold value specified by the standard, whether the insulation performance of the tested product meets the standard can be judged, after the test is finished, the test voltage must be gradually reduced to zero within the specified time, the withstand voltage tester currently found in the market adopts the GB4706 (equivalent to IEC1010) standard, and more single-item test instruments with a desk type structure are used, the requirement that a user needs multi-index comprehensive testing cannot be met, manual fixing is needed, and safety of high-voltage equipment is not enough.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a high-voltage testing machine has solved the problem of proposing in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a high-voltage testing machine comprises a workbench, a high-voltage testing machine body and a testing table are placed above the workbench, a display screen, a switch and a voltage adjusting knob are fixedly mounted on the front face of the high-voltage testing machine body, a plug is fixedly connected to the left side of the high-voltage testing machine body, a high-voltage connecting hole and a ground potential hole are formed in the right side of the high-voltage testing machine body, a self-locking motor is fixedly mounted on the workbench on the right side of the high-voltage testing machine body, a forward rotation button and a reverse rotation button are fixedly mounted in front of the self-locking motor, the self-locking motor is fixedly connected with a rotating shaft through a coupler, a gear is fixedly sleeved at one end of the rotating shaft, the gear is movably sleeved in a fixing plate through the gear, a supporting rod is fixedly connected to the, the testing device comprises a testing table, a first testing head, a second testing head, a spring, a transparent protective cover and a testing table, wherein the first testing head is fixedly connected to the lower portion of the first testing head, the second testing head is movably sleeved on the inner portion of the testing table, the second testing head is fixedly connected to the lower portion of the second testing head, the spring is movably connected to the lower portion of the second testing head, and the transparent protective cover is fixedly mounted on the outer portion of the testing.

Optionally, the workbench is stepped, and a linear position hole flush with the test bench is formed in the workbench.

Optionally, a cavity is formed in the test board, and the spring is movably sleeved in the cavity.

Optionally, the self-locking motor is provided with a brake device, and the rotating shaft is clamped when the power is cut off.

Optionally, a guide groove matched with the convex sliding block at the rear end of the rack is formed in the fixed plate.

Optionally, the first test head and the second test head are electrically connected to the high-voltage connection hole and the ground potential hole, respectively.

The utility model provides a high-pressure test machine possesses following beneficial effect:

1. this high voltage test machine, utilize auto-lock motor and gear revolve drive rack and backup pad, can adjust the height of first test head and first probe, the second probe is fixed in the inside of testboard simultaneously, utilize the spring can effectively extrude the measured object, make the measured object fix completely between first probe and second probe, and the high-voltage plug electric connection of first test head and test machine body, the second test head is connected with the ground connection plug of test machine body, can adjust the size of test voltage through the voltage control knob, and it can real-time supervision test voltage to have the display screen on the test machine body, leakage current and test time, can adjust the height of test head according to the size of test object, the condition that current device can only detect single sample has been solved.

2. This high voltage test machine, pass through the electron line with high-voltage terminal and earthing terminal and be connected with first test head and second test head, first test head and second test head are fixed respectively in the inside of bracing piece and testboard, through self-locking motor and rack and pinion height-adjusting, utilize the effect of spring and motor card stop and gravity, can carry out the joint effectively to the measured object and fix, whole test procedure as long as need the people to press the positive and negative button of self-locking motor, avoided the manual work to go to take the test stick with the hand, very big improvement staff's personal safety, and simultaneously, still be equipped with transparent safety cover in the outside of testboard, both can observe the test condition and can avoid the test product nonconforming, can avoid the measured object to be punctured by the high pressure and the danger that probably brings again.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of the test board of the structure chart 1 of the present invention;

fig. 3 is a schematic view of the gear rack adjusting mechanism of the structure diagram 1 of the present invention.

In the figure: 1. a work table; 2. a high-voltage tester body; 3. a test bench; 4. a plug; 5. a switch; 6. a display screen; 7. a voltage adjustment knob; 8. high-voltage connecting holes; 9. a ground potential hole; 10. a forward rotation button; 11. a reverse button; 12. a self-locking motor; 13. a rotating shaft; 14. a gear; 15. a rack; 16. a fixing plate; 17. a support bar; 18. a first test head; 19. a first probe; 20. a second probe; 21. a second test head; 22. a spring; 23. a transparent protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: a high-voltage testing machine comprises a workbench 1, wherein the workbench 1 is in a step shape, a linear position hole which is flush with a testing table 3 is formed in the workbench 1, a high-voltage testing machine body 2 and the testing table 3 are placed above the workbench 1, the workbench 1 is in the step shape for the transmission fit of a gear 14 and a rack 15, the whole device is effectively grounded, an insulating glove is worn for the safety of a worker during testing, the high-voltage testing machine body 2 is in the prior art and comprises a stable control processing system, a cavity is formed in the testing table 3, a spring 22 is movably sleeved in the cavity, a display screen 6, a switch 5 and a voltage adjusting knob 7 are fixedly installed on the front side of the high-voltage testing machine body 2, a plug 4 is fixedly connected to the left side of the high-voltage testing machine body 2, a high-voltage connecting hole 8 and a ground wire position hole 9 are formed in, the right side of the high-voltage testing machine body 2 is fixedly provided with a self-locking motor 12, the self-locking motor 12 is provided with a contracting brake device, a rotating shaft 13 is clamped when the power is off, the contracting brake device and the self-locking motor 12 are integrally connected and are arranged at the position of the rotating shaft 13, the contracting brake device is in a contracting state when the power is off and is loosened when the power is on, a first testing head 18 and a second testing head 21 are in the vertical direction, the first testing head can be attached to a tested object tightly by utilizing the gravity action, the contracting brake device enables a worker to accurately control the starting and stopping of the self-locking motor 12, a forward button 10 and a reverse button 11 are fixedly arranged in front of the self-locking motor 12, the self-locking motor 12 is fixedly connected with the rotating shaft 13 through a coupler, one end of the rotating shaft 13 is fixedly sleeved with a gear 14, the gear 14 is connected with a rack 15 through the gear, a support rod 17 is fixedly connected to the middle part of the right side of the rack 15, the end of the support rod 17 is fixedly connected with a first test head 18, a wire slot can be arranged in the support rod 17, a connecting wire of the first test head 18 and the high-voltage connecting hole 8 is clamped in the wire slot, and the connection can be directly connected as long as the connection is safe and reliable, a first probe 19 is fixedly connected to the lower part of the first test head 18, a second probe 20 is movably sleeved in the test board 3, a second test head 21 is fixedly connected to the lower part of the second probe 20, the first test head 18 and the second test head 21 are respectively electrically connected with the high-voltage connecting hole 8 and the grounding wire position hole 9, a spring 22 is movably connected to the lower part of the second test head 21, the grounded second test head 21 is arranged in the test board 3, the tested object can be well clamped by the elasticity of the spring 22, and the problem that the existing device is easy to fall off when, the transparent protection cover 23 is fixedly arranged outside the test board 3, when a measured object is unqualified in measurement, the measured object is possibly punctured or emits electric arcs in a high-voltage state, the transparent protection cover 23 is insulated and convenient to take and mount, and the personal safety of operators is effectively protected.

In conclusion, when the high-voltage testing machine is used for high-voltage testing, whether the equipment lines are communicated or not is checked firstly, the plug 4 is inserted, the switch 5 is opened, the voltage adjusting knob 7 is adjusted to be minimum firstly, then the forward rotation button 10 of the self-locking motor 12 is pressed, the gear 14 drives the rack 15, the supporting rod 17 and the first testing head 18 are arranged at a higher position, an object to be tested is placed in the transparent protective cover 23 of the testing table 3, the object to be tested is ensured to be contacted with the second probe 20, the spring 22 presses the second probe 20 to be tightly attached to the object to be tested, the reverse rotation button 11 of the self-locking motor 12 is pressed according to the size of the object to be tested, the first probe 19 on the first testing head 18 is tightly attached to the object to be tested, meanwhile, due to the fixing and gravity effects of the self-locking motor 12, the first probe 19 cannot fall off after being tightly attached, then the voltage adjusting knob 7 is rotated, the, the test voltage value is stably added to the tested insulator for no less than 5s, whether the audible and visual alarm gives an alarm or not is observed, relevant data on the display screen 6 is recorded, after the test is finished, the reset button can be pressed for retest, and after the test is finished, the power supply is disconnected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A high-voltage testing machine comprises a workbench (1), and is characterized in that: a high-voltage testing machine body (2) and a testing table (3) are placed above the workbench (1), a display screen (6), a switch (5) and a voltage adjusting knob (7) are fixedly installed on the front face of the high-voltage testing machine body (2), a plug (4) is fixedly connected to the left side of the high-voltage testing machine body (2), a high-voltage connecting hole (8) and a ground potential hole (9) are formed in the right side of the high-voltage testing machine body (2), a self-locking motor (12) is fixedly installed on the workbench (1) on the right side of the high-voltage testing machine body (2), a forward rotation button (10) and a reverse rotation button (11) are fixedly installed in front of the self-locking motor (12), a rotating shaft (13) is fixedly connected to the self-locking motor (12) through a coupler, a gear (14) is fixedly sleeved at one end of the rotating shaft (, the utility model discloses a test bench, including rack (15), fixed plate (16), rack (15), the right side middle part fixedly connected with bracing piece (17) of rack (15), the first test head (18) of the terminal fixedly connected with of bracing piece (17), the first probe (19) of below fixedly connected with of first test head (18), second probe (20) have been cup jointed in the inside activity of testboard (3), the below fixedly connected with second test head (21) of second probe (20), the below swing joint of second test head (21) has spring (22), the outside fixed mounting of testboard (3) has transparent protection casing (23).

2. The high voltage testing machine of claim 1, wherein: the workbench (1) is in a step shape, and a line position hole which is flush with the test bench (3) is formed in the workbench (1).

3. The high voltage testing machine of claim 1, wherein: the test bench (3) is internally provided with a cavity, and the spring (22) is movably sleeved in the cavity.

4. The high voltage testing machine of claim 1, wherein: and the self-locking motor (12) is provided with a band-type brake device, and the rotating shaft (13) is clamped when the power is off.

5. The high voltage testing machine of claim 1, wherein: the fixed plate (16) is internally provided with a guide groove matched with the convex sliding block at the rear end of the rack (15).

6. The high voltage testing machine of claim 1, wherein: the first test head (18) and the second test head (21) are respectively electrically connected with the high-voltage connecting hole (8) and the grounding potential hole (9).