CN215728660U - Testing device for insulation service life of motor - Google Patents

Abstract

The utility model discloses a testing device for the insulation service life of a motor, which comprises a main body, a transformer and a motor box, wherein the bottom wall inside the motor box is provided with a motor, the output end of the motor is provided with a rotating shaft, one end of the rotating shaft is provided with a second gear, the top of a slideway is provided with a sliding block, the top of the sliding block is provided with a striking rod, the top of the sliding block is provided with a connecting column, the bottom of the connecting rod is provided with a rack, and the top of a fixing plate is provided with a copper sheet. The alarm device is provided with the motor and the copper sheet to give an alarm, when the temperature of the insulating cylinder is higher, the motor drives the second gear to rotate through the rotating shaft, the rack drives the sliding block and the impact rod to move forwards through the connecting rod and impact the copper sheet, the impact sound is emitted to give an alarm, the motor rotates reversely, the impact rod is far away from the copper sheet, the operation is repeated, the impact rod continuously impacts the copper sheet, the insulating cylinder is reminded to be higher in temperature, the test is required to be stopped for cooling, and the temperature alarm function is realized.

Description

Testing device for insulation service life of motor

Technical Field

The utility model relates to the technical field of testing devices, in particular to a testing device for the insulation service life of a motor.

Background

The testing device for the insulation service life of the motor is a device for predicting the service life of an insulation layer of the motor in a voltage breakdown mode, the voltage breakdown test is mainly used for the breakdown strength and the withstand voltage time of an insulation material under direct current voltage or alternating current voltage, and the service life of the insulation layer of the motor determines the service life of the motor to a certain extent, so that the testing device for the insulation service life of the motor is required to be frequently used for carrying out relevant prejudgment.

The existing testing device has the following defects:

1. most of the existing testing devices are not provided with a component for temperature alarm of the insulating layer of the conducting rod, when the conducting rod is electrified for a long time, heat can be generated to raise the temperature of the insulating layer of the conducting rod, at the moment, the testing needs to be stopped, the temperature is reduced, otherwise, the insulating effect of the insulating layer is influenced, and even electric leakage is caused;

2. most of the power-off assemblies installed in the conventional testing device cannot automatically recover to the original state, and after power failure, a worker is required to restore the power-off assemblies to the original state.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a testing device for the insulation service life of a motor, which aims to solve the problem that the device cannot automatically recover without a temperature alarm component and a power-off component in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a testing device for the insulation service life of a motor comprises a main body, a transformer and a motor box, wherein the transformer is installed on the outer wall of the main body, and the motor box is installed at the top of the main body;

the infrared thermometer is characterized in that a motor is mounted on the bottom wall inside the motor box, a rotating shaft is mounted at the output end of the motor, a second gear is mounted at one end of the rotating shaft, a slide way is mounted at the top of the main body, a slide block is mounted at the top of the slide way, a striking rod is mounted at the top of the slide block, a connecting column is mounted at the bottom of the slide block, one end of the connecting column extends into the slide way, a rack is mounted at the bottom of the connecting rod and meshed with the second gear, a fixing plate is mounted at the top of the main body and located on the front side of the slide way, a copper sheet is mounted at the top of the fixing plate, an infrared thermometer is mounted on the inner wall of the main body, and the infrared thermometer is electrically connected with the motor through a lead;

the front of the main body is provided with an operating table.

Preferably, two sets of backup pads are installed to the inside diapire of main part, the mounting panel is installed at the top of main part, the motor is installed at the top of mounting panel, the insulating cylinder is installed to the inside roof of main part, the outer wall of mounting panel runs through and installs the second bolt, the bearing is installed to the output of motor, first lead screw is installed to the output of bearing, the gear box is installed at the top of main part, the outage case is installed at the top of main part, and the outage case is located between motor box and the gear box, the outer wall of gear box runs through and installs the second lead screw, and the one end of second lead screw extends into the inside of outage case, leading electrical pillar is installed to the one end of second lead screw, first gear is installed to the outer wall of second lead screw, and first gear and first lead screw meshing, first conducting rod is installed through at the top of outage case, and the bottom of first conducting rod is connected with the top of leading electrical pillar.

Preferably, a vibration damping mount is installed at the bottom of the main body.

Preferably, the outer wall of the transformer is provided with a rear knob.

Preferably, the top of operation panel installs the display screen, and the controller is installed at the top of operation panel, and the controller is located one side of display screen.

Preferably, the grip block is installed to the outer wall of backup pad, and the motor is installed to the inner wall of grip block and is insulated, and the carriage release lever is installed at the top of grip block, and the bottom of carriage release lever extends into the inside of grip block, and the movable plate is installed at the top of carriage release lever, and the outer wall of carriage release lever encircles and installs the spring, and the stripper plate is installed to the bottom of carriage release lever, and the bottom of stripper plate is connected with the top that the motor is insulated.

Preferably, the second conducting rod is installed to the inner wall of insulating cylinder, and the top of second conducting rod is connected with the bottom of leading electrical pillar, needle electrode is installed to the bottom of second conducting rod, and needle electrode's bottom runs through the bottom of insulating cylinder, the block rubber is installed to the inside diapire of main part, and the block rubber is located between two sets of backup pads, the plate electrode is installed at the top of block rubber, the connector lug is installed in the front of plate electrode, the universal meter is installed to the inside diapire of main part, and the universal meter is located the front of block rubber, universal meter and motor and plate electrode all pass through wire electric connection, the time-recorder is installed to the inside diapire of main part, and the time-recorder is located one side of universal meter, the time-recorder passes through wire electric connection with the universal meter.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model gives an alarm by installing a motor and a copper sheet, when an infrared thermometer detects that the temperature of an insulating cylinder is higher, the motor is started, the motor drives a rotating shaft to rotate anticlockwise, the rotating shaft drives a second gear to rotate anticlockwise, the second gear converts the rotating motion of the second gear into the linear motion of a rack, the rack drives a connecting rod to move forwards, the connecting rod drives a sliding block to move forwards along a slideway, the sliding block drives an impact rod to move forwards, the impact rod impacts the copper sheet to give an alarm, the motor drives the rotating shaft to rotate clockwise, the rotating shaft drives the second gear to rotate clockwise, the rack drives the connecting rod to move backwards, the connecting rod drives the sliding block to move backwards along the slideway, the sliding block drives the impact rod to move backwards, the impact rod is separated from the copper sheet, the impact rod does back and forth movement, the copper sheet is continuously impacted to give an alarm, and the temperature of the insulating cylinder is reminded to be higher for workers, the test is required to be stopped, and the temperature is reduced, so that the temperature alarming function is realized;

2. the universal meter is provided with the motor, the first gear, the first screw rod, the second screw rod and the conductive column to cut off and electrify, when an insulating layer of the motor is broken down, the universal meter detects current and starts the motor, the motor drives the first screw rod to rotate rapidly through the bearing, the first screw rod drives the first gear to rotate rapidly, the first gear converts the rotation motion of the first gear into the linear motion of the second screw rod, the second screw rod drives the conductive column to move rapidly, the conductive column breaking block is connected with the first conductive rod and the second conductive rod to achieve power cut-off, when the universal meter does not detect current, the motor rotates in the opposite direction, the second screw rod brings the conductive column back to the original position, and the conductive column breaking block is reconnected with the first conductive rod and the second conductive rod to achieve the functions of automatic power cut-off and electrifying.

Drawings

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

FIG. 2 is a schematic perspective view of a clamping plate according to the present invention;

FIG. 3 is a schematic plan view of the clamping plate of the present invention;

FIG. 4 is a schematic view of a motor of the present invention;

FIG. 5 is a schematic view of a portion of the gearbox of the present invention;

fig. 6 is a schematic view of a motor of the present invention.

In the figure: 1. a main body; 101. a damping mount; 2. a transformer; 201. a knob; 3. an operation table; 301. a display screen; 302. a controller; 4. a support plate; 401. a clamping plate; 402. a travel bar; 403. a spring; 404. a pressing plate; 5. a motor; 501. mounting a plate; 502. a bearing; 503. a first lead screw; 504. a gear case; 505. a second lead screw; 506. a first gear; 507. a conductive post; 508. a first conductive rod; 6. an insulating cylinder; 601. a second conductive rod; 602. a needle electrode; 603. a rubber block; 604. an electrode plate; 605. a universal meter; 606. a timer; 7. a motor case; 701. a motor; 702. a rotating shaft; 703. a second gear; 704. a slideway; 705. a striker bar; 706. a rack; 707. a fixing plate; 708. a copper sheet; 709. an infrared thermometer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, an embodiment of the present invention is shown: a testing device for the insulation service life of a motor comprises a main body 1, a transformer 2 and a motor box 7, wherein the transformer 2 is installed on the outer wall of the main body 1, the main body 1 provides an installation position for the transformer 2, the voltage applied to a needle electrode 602 can be changed through the transformer 2, the motor box 7 is installed at the top of the main body 1, and the motor box 7 provides an installation position for a motor 701;

a motor 701 is arranged on the bottom wall of the interior of the motor box 7, a rotating shaft 702 is arranged at the output end of the motor 701, a second gear 703 is arranged at one end of the rotating shaft 702, a slide way 704 is arranged at the top of the main body 1, a slide block is arranged at the top of the slide way 704, a striking rod 705 is arranged at the top of the slide block, a connecting column is arranged at the bottom of the slide block, one end of the connecting column extends into the slide way 704, a rack 706 is arranged at the bottom of the connecting column, the rack 706 is meshed with the second gear 703, a fixing plate 707 is arranged at the top of the main body 1, the fixing plate 707 is positioned on the front surface of the slide way 704, a copper sheet 708 is arranged at the top of the fixing plate 707, an infrared thermometer 709 is arranged on the inner wall of the main body 1, the infrared thermometer 709 is electrically connected with the motor 701 through a lead, when the infrared thermometer 709 detects that the temperature of the insulating cylinder 6 is high, the motor 701 is started, and the rotating shaft 702 is driven to rotate anticlockwise, the rotating shaft 702 drives the second gear 703 to rotate anticlockwise, the second gear 703 converts the rotation of the second gear into the linear motion of the rack 706, the rack 706 drives the connecting rod to move forwards, the connecting rod drives the sliding block to move forwards along the sliding way 704, the sliding block drives the impact rod 705 to move forwards, the impact rod 705 impacts the copper sheet 708 and gives an alarm, similarly, the motor 701 drives the rotating shaft 702 to rotate clockwise, the rotating shaft 702 drives the second gear 703 to rotate clockwise, the rack 706 drives the connecting rod to move backwards, the connecting rod drives the sliding block to move backwards along the sliding way 704, the sliding block drives the impact rod 705 to move backwards, the impact rod 705 is separated from the copper sheet 708, the impact rod 705 does back and forth movement and continuously impacts the copper sheet 708 to give an alarm, the worker is reminded that the temperature of the insulating cylinder 6 is high, the test needs to be stopped, the temperature is reduced, the temperature alarm function is realized, and the fixing plate 707 fixes the copper sheet 708;

the front of the main body 1 is provided with an operation table 3, and the operation table 3 supports the display screen 301 and the controller 302 at the top to realize a supporting function.

Further, two sets of support plates 4 are mounted on the bottom wall of the inside of the main body 1, a mounting plate 501 is mounted on the top of the main body 1, a motor 5 is mounted on the top of the mounting plate 501, an insulating cylinder 6 is mounted on the top wall of the inside of the main body 1, a second bolt is mounted on the outer wall of the mounting plate 501 in a penetrating manner, a bearing 502 is mounted on the output end of the motor 5, a first lead screw 503 is mounted on the output end of the bearing 502, a gear box 504 is mounted on the top of the main body 1, a power-off box is mounted on the top of the main body 1 and located between the motor box 7 and the gear box 504, a second lead screw 505 is mounted on the outer wall of the gear box 504 in a penetrating manner, one end of the second lead screw 505 extends into the power-off box, a conductive post 507 is mounted on one end of the second lead screw 505, a first gear 506 is mounted on the outer wall of the second lead screw 505 and is engaged with the first lead screw 503, a first conductive rod 508 is mounted on the top of the power-off box in a penetrating manner, when the insulating layer of the motor is broken down, the multimeter 605 detects current and starts the motor 5, the motor 5 drives the first lead screw 503 to rotate quickly through the bearing 502, the first lead screw 503 drives the first gear 506 to rotate quickly, the first gear 506 converts the rotation motion of the first gear into the linear motion of the second lead screw 505, the second lead screw 505 drives the conductive post 507 to move quickly, the conductive post 507 broken block is connected with the first conductive post 508 and the second conductive post 601, power failure is realized, when the multimeter 605 does not detect current, the motor 5 rotates in the opposite direction, the second lead screw 505 brings the conductive post 507 back to the original position, and the conductive post 507 broken block is reconnected with the first conductive post 508 and the second conductive post 601, so that the functions of automatic power failure and power on are realized.

Further, a damper base 101 is installed at the bottom of the main body 1, and the damper base 101 plays a role of damping the device and can buffer an external force applied to the device.

Further, the rear knob 201 is installed on the outer wall of the transformer 2, and the ratio of the number of turns of the coil at the input end to the number of turns of the coil at the output end of the transformer 2 can be changed through the knob 201, so that the voltage applied to the needle electrode 602 is changed.

Further, a display screen 301 is installed on the top of the operating platform 3, a controller 302 is installed on the top of the operating platform 3, the controller 302 is located on one side of the display screen 301, experimental data can be visually observed through the display screen 301, and the motor 701 and the motor 5 can be controlled to be turned on and turned off through the controller 302.

Further, a clamping plate 401 is installed on the outer wall of the supporting plate 4, a motor insulator is installed on the inner wall of the clamping plate 401, a moving rod 402 is installed on the top of the clamping plate 401, the bottom of the moving rod 402 extends into the clamping plate 401, the moving plate is arranged at the top of the moving rod 402, the spring 403 is arranged around the outer wall of the moving rod 402, the extrusion plate 404 is arranged at the bottom of the moving rod 402, the bottom of the extrusion plate 404 is connected with the top of the motor insulator, when the motor insulating layer is clamped and fixed, the moving rod 402 is pulled upwards through the moving plate, the moving rod 402 drives the extrusion plate 404 to move upwards, the extrusion plate 404 extrudes the spring 403 upwards, the motor insulating layer is placed inside the clamping plate 401, the moving plate is loosened, the spring 403 pulls the moving rod 402 downwards, the moving rod 402 drives the extrusion plate 404 to move downwards, and the extrusion plate 404 extrudes the motor insulating layer downwards, so that the function of clamping the motor insulating layer is realized.

Further, a second conducting rod 601 is installed on the inner wall of the insulating cylinder 6, the top of the second conducting rod 601 is connected with the bottom of the conducting column 507, a needle electrode 602 is installed at the bottom of the second conducting rod 601, the bottom of the needle electrode 602 penetrates through the bottom of the insulating cylinder 6, a rubber block 603 is installed on the inner bottom wall of the main body 1, the rubber block 603 is located between the two sets of supporting plates 4, an electrode plate 604 is installed on the top of the rubber block 603, a connector lug is installed on the front surface of the electrode plate 604, a multimeter 605 is installed on the inner bottom wall of the main body 1, the multimeter 605 is located on the front surface of the rubber block 603, the multimeter 605 is electrically connected with the motor 5 and the electrode plate 604 through conducting wires, a timer 606 is installed on the inner bottom wall of the main body 1, the timer 606 is located on one side of the multimeter 605, the timer 606 is electrically connected with the multimeter 605 through conducting wires, when the service life of the insulating layer of the motor is tested, timer 606 opens, second conducting rod 601 gives needle electrode 602 with voltage transfer, the voltage of transformer 2 increase transmission, realize the operation of stepping up, needle electrode 602 carries out voltage accumulation, reach the breakdown voltage value, produce breakdown current, the electric current punctures motor insulation and reaches electrode plate 604, universal meter 605 detects the electric current, timer 606 stops the timing, obtain motor insulation's life, insulating cylinder 6 plays insulating effect to second conducting rod 601, avoid producing the electric leakage, rubber block 603 supports electrode plate 604, realize support function, the connector lug plays the effect of making things convenient for the wire to connect.

The working principle is that firstly, when the infrared thermometer 709 detects that the temperature of the insulating cylinder 6 is high, the motor 701 is started, the motor 701 drives the rotating shaft 702 to rotate anticlockwise, the rotating shaft 702 drives the second gear 703 to rotate anticlockwise, the second gear 703 converts the rotation of the second gear 703 into the linear motion of the rack 706, the rack 706 drives the connecting rod to move forwards, the connecting rod drives the sliding block to move forwards along the slideway 704, the sliding block drives the impact rod 705 to move forwards, the impact rod 705 impacts the copper sheet 708 to give an alarm, similarly, the motor 701 drives the rotating shaft 702 to rotate clockwise, the rotating shaft 702 drives the second gear 703 to rotate clockwise, the rack 706 drives the connecting rod to move backwards, the connecting rod drives the sliding block to move backwards along the slideway 704, the sliding block drives the impact rod 705 to move backwards, the impact rod 705 is separated from the copper sheet 708, the impact rod 705 to move backwards and forwards, and backwards, the copper sheet 708 is continuously impacted, the method is characterized in that a worker is reminded that the temperature of an insulating cylinder 6 is high, the test needs to be stopped, the temperature is reduced, and the temperature alarm function is achieved, then, when an insulating layer of a motor is broken down, a universal meter 605 detects current and starts the motor 5, the motor 5 drives a first lead screw 503 to rotate rapidly through a bearing 502, the first lead screw 503 drives a first gear 506 to rotate rapidly, the first gear 506 converts rotation motion of the first lead screw 506 into linear motion of a second lead screw 505, the second lead screw 505 drives a conductive column 507 to move rapidly, the conductive column 507 is connected with a first conductive rod 508 and a second conductive rod 601, power failure is achieved, when the universal meter 605 does not detect current, the motor 5 rotates in the opposite direction, the second lead screw 505 brings the conductive column 507 back to the original position, and the conductive column 507 is reconnected with the first conductive rod 508 and the second conductive rod 601, and the functions of automatic power failure and power on are achieved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a testing arrangement of motor insulation life, includes main part (1), transformer (2) and motor box (7), its characterized in that: a transformer (2) is installed on the outer wall of the main body (1), and a motor box (7) is installed at the top of the main body (1);

the motor (701) is installed on the bottom wall of the interior of the motor box (7), a rotating shaft (702) is installed at the output end of the motor (701), a second gear (703) is installed at one end of the rotating shaft (702), a slide way (704) is installed at the top of the main body (1), a slide block is installed at the top of the slide way (704), a striking rod (705) is installed at the top of the slide block, a connecting column is installed at the bottom of the slide block, one end of the connecting column extends into the interior of the slide way (704), a rack (706) is installed at the bottom of the connecting rod, the rack (706) is meshed with the second gear (703), a fixing plate (707) is installed at the top of the main body (1), the fixing plate (707) is located on the front face of the slide way (704), a copper sheet (708) is installed at the top of the fixing plate (707), and an infrared thermometer (709) is installed on the inner wall of the main body (1), the infrared thermometer (709) is electrically connected with the motor (701) through a lead;

the front surface of the main body (1) is provided with an operating table (3).

2. The motor insulation service life testing device according to claim 1, characterized in that: two groups of supporting plates (4) are installed on the bottom wall inside the main body (1), a mounting plate (501) is installed on the top of the main body (1), a motor (5) is installed on the top of the mounting plate (501), an insulating cylinder (6) is installed on the top wall inside the main body (1), a second bolt is installed on the outer wall of the mounting plate (501) in a penetrating mode, a bearing (502) is installed at the output end of the motor (5), a first lead screw (503) is installed at the output end of the bearing (502), a gear box (504) is installed on the top of the main body (1), a power-off box is installed on the top of the main body (1), the power-off box is located between a motor box (7) and the gear box (504), a second lead screw (505) is installed on the outer wall of the gear box (504) in a penetrating mode, one end of the second lead screw (505) extends into the power-off box, a conductive column (507) is installed at one end of the second lead screw (505), a first gear (506) is installed on the outer wall of the second lead screw (505), and the first gear (506) is meshed with the first screw rod (503), the top of the power-off box is provided with a first conducting rod (508) in a penetrating way, and the bottom of the first conducting rod (508) is connected with the top of the conducting column (507).

3. The motor insulation service life testing device according to claim 1, characterized in that: a damping base (101) is installed at the bottom of the main body (1).

4. The motor insulation service life testing device according to claim 1, characterized in that: and a rear knob (201) is arranged on the outer wall of the transformer (2).

5. The motor insulation service life testing device according to claim 1, characterized in that: display screen (301) is installed at the top of operation panel (3), and controller (302) are located one side of display screen (301).

6. The motor insulation service life testing device according to claim 2, characterized in that: clamping plate (401) is installed to the outer wall of backup pad (4), the motor is installed to the inner wall of clamping plate (401) and is insulated, carriage release lever (402) is installed at the top of clamping plate (401), and the bottom of carriage release lever (402) extends into the inside of clamping plate (401), the movable plate is installed at the top of carriage release lever (402), spring (403) are installed around the outer wall of carriage release lever (402), stripper plate (404) is installed to the bottom of carriage release lever (402), and the bottom of stripper plate (404) is connected with the top of motor insulation.

7. The motor insulation service life testing device according to claim 2, characterized in that: a second conductive rod (601) is installed on the inner wall of the insulating cylinder (6), the top of the second conductive rod (601) is connected with the bottom of the conductive column (507), a needle electrode (602) is installed at the bottom of the second conductive rod (601), the bottom of the needle electrode (602) penetrates through the bottom of the insulating cylinder (6), a rubber block (603) is installed on the inner bottom wall of the main body (1), the rubber block (603) is located between the two groups of supporting plates (4), an electrode plate (604) is installed at the top of the rubber block (603), a connector lug is installed on the front surface of the electrode plate (604), a universal meter (605) is installed on the inner bottom wall of the main body (1), the universal meter (605) is located on the front surface of the rubber block (603), the universal meter (605) is electrically connected with the motor (5) and the electrode plate (604) through wires, and a timer (606) is installed on the inner bottom wall of the main body (1), and the timer (606) is positioned at one side of the multimeter (605), and the timer (606) is electrically connected with the multimeter (605) through a lead.

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