CN113884840A

CN113884840A - Insulation performance detection device for high-voltage motor

Info

Publication number: CN113884840A
Application number: CN202111298276.9A
Authority: CN
Inventors: 朱国斌
Original assignee: Jiaxing Nanyang Polytechnic Institute
Current assignee: Jiaxing Nanyang Polytechnic Institute
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-01-04

Abstract

The utility model discloses an insulation performance detection device for a high-voltage motor, which comprises a bottom plate, a movable plate high-voltage motor, a megger, a rubber sucker and a ferromagnetic surrounding frame, wherein the movable plate is installed at the top of the bottom plate, the high-voltage motor is installed at the top of the movable plate, and the megger is installed at the top of the bottom plate; a ferromagnetic enclosure frame is arranged at the top of the bottom plate; four groups of rubber suction cups which are arranged in a square mode are installed at the top of the megger, supporting columns are installed at the top of the rubber suction cups, and square plates are installed at the top of the supporting columns. The device can capture data of the dial of the megger through the recorder, then carry out backup storage, has the function of fixing and preventing movement when the motor to be tested on the movable plate is placed, can carry out space transformation between the motor and the megger, ensures that the spaces between the motors with different sizes and the megger can be in the effective length range of the measuring flexible wire, can isolate the magnetic field when the device is used for detection, and avoids the influence of the magnetic field of an external part on the detection result.

Description

Insulation performance detection device for high-voltage motor

Technical Field

The utility model relates to the technical field of high-voltage motors, in particular to an insulation performance detection device for a high-voltage motor.

Background

The high-voltage motor is a motor with the rated voltage of more than 1000V, has the advantages of high power and strong impact bearing capacity, but the high-voltage motor needs to be subjected to a series of detection before being put into use and can be normally put into use after passing through the high-voltage motor, wherein an insulation performance detection device needs to be adopted to carry out insulation detection on the high-voltage motor, the insulation of the high-voltage motor is mainly divided into two types, namely insulation of a winding to the ground and insulation of winding phases, and a part of a megger needs to be used in the test process.

The existing insulation performance detection device has the following defects:

1. the comparison document CN108594138A discloses an insulating property detection device for a charge pal, which comprises a workbench, a detection pen and a second protective layer, wherein the top of the workbench is connected with a support frame, a movable groove is fixed on the inner side of the support frame, a movable disc is arranged in the movable groove, a cross rod is connected to the inner wall of the movable disc close to the central axis of the support frame, a clamping groove is fixed in the cross rod, the detection pen is arranged on the inner side of the clamping groove close to the central axis of the workbench, a telescopic rod is connected to the inner wall of the top end of the support frame, a first fixing plate is arranged at the bottom of the telescopic rod, a first bolt is screwed on the outer side of the first fixing plate, and a first limiting block is arranged at the bottom end of the first fixing plate, so that the utility model has the beneficial effects that: according to the utility model, through the arrangement of the detection pen, the second fixing plate, the second limiting plate and the second bolt, under the action of the detection pen, the insulation performance detection work can be simultaneously carried out on two sides of the outer wall of the power bank, and the working efficiency of the device is improved. However, the device cannot automatically record images of data detected each time, and if a worker does not record data in the detection process, no data backup exists in the detection, so that no data reference exists in the later data comparison;

2. the comparison document CN112798913A discloses a detection device and a detection method for an insulating layer of a motor coil, which comprises a voltage resistance tester and a detection head, wherein the voltage resistance tester is provided with a high-voltage output end and a grounding end, and the high-voltage output end is used for being connected with a wire head part of a coil to be detected through a lead; the detection head is an insulating part, a spiral groove is formed in the detection head, a bare conductor is arranged in the spiral groove, a gap is formed between the bare conductor and a detection part of the coil to be detected, and the grounding end is directly or indirectly connected with the head of the bare conductor of the detection head. The motor coil insulating layer detection device can be used for detecting a motor stator coil and a motor rotor coil, and has more comprehensive functions; whether the insulating layer of coil is damaged can directly perceived through reading the leakage current numerical value that detects on the withstand voltage tester, compares with the scheme through observing the electric spark among the prior art, and it is higher to detect the accuracy, and the efficiency that detects is higher. However, when the device is used for detecting the motor, the motor cannot be fixed at a set position, and the motor is easy to deviate under mistaken collision in the detection process, so that the validity of detection data is influenced;

3. reference CN212031646U discloses an insulating detection device of high-voltage motor, "including ferromagnetic upper cover, a pedestal, ferromagnetic shell and megger, the top of base is fixed with the ferromagnetic shell, the inside of ferromagnetic shell is fixed with the megger, the ferromagnetic shell upper portion of megger top is rotated and is connected with the ferromagnetic upper cover, be fixed with first bubble spirit level on the base of ferromagnetic shell front end, the base top of first bubble spirit level front side is fixed with the second bubble spirit level, it has the slipmat to bond on the base of second bubble spirit level front end, the bottom four corners threaded connection of base has adjusting bolt. The utility model solves the problems that the level can not be ensured and the measuring machine can not be ensured not to be interfered by an external magnetic field when the insulation degree of the motor is measured by arranging the adjusting bolt, the megger, the base, the first bubble level meter, the second bubble level meter, the ferromagnetic shell and the ferromagnetic upper cover. However, the distance between the motor and the megger cannot be adjusted in the device, and when the size of the measured motor is small, the distance between the motor and the megger may not be in the effective range of the measuring flexible wire;

4. reference CN211348425U discloses an insulation detection device for a high-voltage motor, which includes an insulation detector, a data processor, and is characterized in that: the insulation detector and the data processor are respectively arranged in two mutually independent insulation shells, the two insulation shells are internally provided with an electromagnetic coil and a data transmission element respectively, the data transmission element comprises an electromagnetic coil or an infrared tube or a laser tube and the like, the detection input end of the insulation detector is connected to the star point of three high-voltage resistors, and the other ends of the three high-voltage resistors are respectively connected with the inlet wires of three stator windings of the motor. The high-voltage motor insulation detection device provided by the utility model realizes the isolation of a high-voltage loop and a secondary loop, and ensures the safety of equipment and personnel. However, when the device is used for detecting the insulation performance of the high-voltage motor, an external magnetic field cannot be isolated, and the accuracy of a detection result may be affected by the external magnetic field.

Disclosure of Invention

The present invention is directed to an insulation performance detection device for a high-voltage motor, which solves the above-mentioned problems in the related art.

In order to achieve the purpose, the utility model provides the following technical scheme: the insulation performance detection device for the high-voltage motor comprises a bottom plate, a movable plate high-voltage motor, a megger, a rubber sucker and a ferromagnetic surrounding frame, wherein the movable plate is installed at the top of the bottom plate, the high-voltage motor is installed at the top of the movable plate, the megger is installed at the top of the bottom plate, and the megger is located on one side of the movable plate;

the top of the bottom plate is provided with a ferromagnetic surrounding frame, and the movable plate and the megger are both positioned in a surrounding space of the ferromagnetic surrounding frame;

four groups of rubber suction cups that are square arrangement are installed at the top of megger, the support column is installed at rubber suction cup's top, square board is installed at the top of support column, the top of square board is run through and is installed the block board, the recorder is installed to the bottom of block board, the alarm is installed at the top of square board.

Preferably, the both sides outer wall of movable plate all is provided with the adjustment tank, support folded plate and restriction bounding wall are all installed to the both sides outer wall of movable plate, and the bottom of restriction bounding wall and the bottom laminating of supporting the folded plate, the combined plate is installed to the diapire of support folded plate, and the inside of restriction bounding wall is extended to the top of combined plate.

Preferably, a fastening screw penetrates through the outer wall of one side of the composite board, an expansion circular plate is installed at one end of the fastening screw, and the outer wall of the expansion circular plate is attached to the inner wall of the adjusting groove.

Preferably, the top of movable plate is installed two sets of L types that are diagonal arrangement and is supported the clamp plate, and is two sets of the L type supports one side outer wall of clamp plate and all installs the sleeve, the gomphosis plectane is installed to telescopic inner wall, one side outer wall of combined plate runs through and installs the screw thread post, and the screw thread post is located the top of restriction bounding wall, the one end of screw thread post is laminated with one side outer wall of gomphosis plectane.

Preferably, the top of bottom plate is provided with the shifting chute that arranges around two sets of, the gomphosis strip that arranges around two sets of is installed to the bottom of shifting chute, and the outer wall of gomphosis strip and the inner wall laminating of shifting chute, the fixed block is installed to the diapire of shifting chute, and the fixed block is located the gomphosis strip and keeps away from one side of megger, the top of fixed block is run through and is installed the locking nail.

Preferably, one side outer wall that the gomphosis strip is close to the fixed block is provided with the notch, the thread bush is installed to one side inner wall of notch, the fixed block is close to one side outer wall of gomphosis strip and installs electric putter, the screw is installed to electric putter's one end, and the outer wall of screw and the inner wall laminating of thread bush.

Preferably, the top of bottom plate is provided with the recess, and the recess is located the place ahead of movable plate, ferromagnetic roof is installed through the hinge at the top that ferromagnetic enclosed the frame, perspective window is installed at the top of ferromagnetic roof, ferromagnetic front bezel is installed through the hinge in the front of ferromagnetic roof.

Preferably, the type frame returns is installed at the top of bottom plate, and returns the outer wall laminating of the inner wall of type frame and megger, the megger is close to one side outer wall of high-voltage motor and installs the terminal, the measurement patchcord is installed to the one end of terminal, the rocking handle is installed to the opposite side outer wall of megger, and the one end of rocking handle extends the inside that ferromagnetic encloses the frame.

Preferably, the working steps of the insulation performance detection device are as follows:

s1, a worker applies upward pulling force and backward pushing force to the ferromagnetic front plate at the same time, the pulling force and the pushing force can be transmitted to the ferromagnetic top plate, then the ferromagnetic front plate and the ferromagnetic top plate can be gradually separated from the front surface and the top of the ferromagnetic surrounding frame, and at the moment, the inner space of the ferromagnetic surrounding frame can be exposed;

s2, a worker places a high-voltage motor to be detected at the top of the movable plate, then respectively rotates nuts mounted on the outer surfaces of the two groups of fastening screws, so that the fit between the expansion circular plate and the adjusting groove is loosened, then respectively applies backward and forward driving forces to the two groups of L-shaped pressing plates, at the moment, the comprehensive plate can move on the bottom wall of the supporting folded plate until the inner walls of the bent parts of the two groups of L-shaped pressing plates are respectively fit with the front and the back of the high-voltage motor, namely stopping applying the driving forces, and then tightly rotates the nuts;

s3, the threaded column is connected with the comprehensive plate in a threaded embedding manner, a worker applies a rotating force in a set direction to the threaded column to enable one end of the threaded column to gradually move towards the position where the high-voltage motor is located, then a pushing force is generated on the L-shaped abutting pressing plate to enable the inner wall of the bending position of the L-shaped abutting pressing plate to be attached to the outer wall of the high-voltage motor, and at the moment, the high-voltage motor can be fixed to the top of the moving plate;

s4, starting two groups of electric push rods by a worker through an external controller, and then promoting the electric push rods to perform outward extension or inward contraction operation so as to generate a pushing force and a pulling force towards or away from the megger for the two groups of embedded strips, and stopping the operation of the electric push rods until the distance between the high-voltage motor and the megger reaches a state of proper measurement flexible wire connection;

s5, removing the wiring of the outer surface of the high-voltage motor to be tested by a worker, performing temporary grounding discharge operation on related elements in the device to ensure the safety of the human body and the megger and the accuracy of measurement results, then checking whether the megger is damaged, if the megger is damaged, replacing the megger, otherwise, connecting one group of measurement flexible wires on the megger with the outer surface of the high-voltage motor to be tested, connecting the other group of measurement flexible wires with one end of a winding, then closing the ferromagnetic top plate and the ferromagnetic front plate to enable the whole body formed by the ferromagnetic top plate, the ferromagnetic front plate and the ferromagnetic surrounding frame to form an inclusion relation with each component on the bottom plate so as to shield a magnetic field outside the device in the process of detecting the insulation performance, then pressing the top of the ferromagnetic top plate by the left hand of the worker, applying rotating force to the rocking handle by the right hand, wherein the rotating speed is about 120r/min, and when the reading on the dial inside the megger is stable, the pointed numerical value is the insulation resistance value to the ground of the measured object;

s6, when the device runs, the recorder is started, numerical value change inside the dial plate in the megger is recorded through the recorder, meanwhile, the change image is transmitted to external recording equipment, and when the recorder catches that the numerical value in the dial plate below is in an uninsulated range, the alarm which is electrically connected with the recorder can be started to quickly remind a worker that the high-voltage motor which is being detected does not have insulating performance.

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

1. when the megger is installed and started, the recorder is started, the change of the numerical value inside the dial plate in the megger is recorded through the recorder, and meanwhile, the change image is transmitted to external recording equipment to record the detection result and the data generated in the detection process, so that the recorder can be used as a data backup and can be used when a worker does not record the data;

2. according to the utility model, the positions of the L-shaped pressing plates on the movable plate can be adjusted, so that the inner walls of the concave parts of one group of the L-shaped pressing plates can be respectively attached to the front side and one side outer wall of the high-voltage motor to be detected, the inner walls of the concave parts of the other group of the L-shaped pressing plates are attached to the back side and the other side outer wall of the high-voltage motor to be detected, then the positions of the L-shaped pressing plates on the movable plate are fixed, at the moment, the high-voltage motor can be fixed at the top of the movable plate, and the phenomenon that the high-voltage motor moves on the movable plate due to collision when detection is carried out is avoided, and then the connection between the high-voltage motor and the measuring flexible wires is influenced;

3. according to the utility model, after the high-voltage motor to be tested at the top of the movable plate is placed, the electric push rod can be correspondingly started to enable the high-voltage motor to be extended outwards or contracted inwards, and then the driving force or the pulling force is correspondingly transmitted to the embedded strips to enable the movable plate to drive the high-voltage motor to change the distance between the high-voltage motor and the megger, so that the distance is within the effective length range of the measuring flexible wire, the device is suitable for the high-voltage motors with different sizes, the application range is increased, and the electric push rod is detachable between the embedded strips, and the electric push rod is convenient to overhaul or replace;

4. when the device is used for detecting the insulation performance of the high-voltage motor, a closed state needs to be formed between the ferromagnetic top plate and the ferromagnetic front plate as well as the ferromagnetic enclosure frame to enclose the megger and the high-voltage motor in the space, and the ferromagnetic enclosure frame, the ferromagnetic front plate and the ferromagnetic enclosure frame are all made of rigid materials.

Drawings

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

FIG. 2 is a schematic view of the mounting structure of the square plate, the engaging plate and the recorder according to the present invention;

FIG. 3 is a schematic view of an installation structure of the L-shaped pressing plate, the sleeve and the engaging circular plate according to the present invention;

FIG. 4 is a schematic view of the mounting structure of the moving plate, the limiting coaming and the composite plate according to the present invention;

FIG. 5 is a schematic view of the installation structure of the engagement strip, the threaded sleeve and the threaded member according to the present invention;

FIG. 6 is a schematic view of the mounting structure of the moving plate, the engaging strip and the electric push rod according to the present invention;

FIG. 7 is a schematic view of the installation structure of the ferromagnetic enclosure frame, the ferromagnetic top plate and the ferromagnetic front plate according to the present invention;

FIG. 8 is a schematic view of the mounting structure of the megger, the terminal and the rocking handle of the present invention.

In the figure: 1. a base plate; 2. moving the plate; 3. a high voltage motor; 4. shaking the meter; 5. a rubber suction cup; 6. a ferromagnetic enclosure frame; 7. a support pillar; 8. a square plate; 9. a clamping plate; 10. a recorder; 11. an alarm; 12. an adjustment groove; 13. supporting the folded plate; 14. limiting the coaming; 15. a composite board; 16. fastening screws; 17. an L-shaped pressing plate; 18. a sleeve; 19. fitting the circular plate; 20. a threaded post; 21. a moving groove; 22. a tabling strip; 23. a fixed block; 24. a notch; 25. a threaded sleeve; 26. an electric push rod; 27. a threaded member; 28. a groove; 29. a ferromagnetic top plate; 30. a perspective window; 31. a ferromagnetic front plate; 32. a back-shaped frame; 33. a binding post; 34. measuring the flexible wire; 35. a rocking handle.

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.

The first embodiment is as follows:

as shown in fig. 1 and 2, an insulation performance detection device for a high-voltage motor comprises a bottom plate 1, a moving plate 2, a high-voltage motor 3, a megger 4, a rubber sucker 5 and a ferromagnetic surrounding frame 6, wherein the moving plate 2 is installed at the top of the bottom plate 1, the high-voltage motor 3 is installed at the top of the moving plate 2, the megger 4 is installed at the top of the bottom plate 1, and the megger 4 is located on one side of the moving plate 2;

specifically, bottom plate 1 can provide comparatively steady place for each part at its top, movable plate 2 can provide suitable place for placing of high voltage motor 3, and the rubber pad is installed at its top, the coefficient of friction at 2 tops of movable plate has been increased, make it possess antiskid nature, high voltage motor 3 is rated voltage motor more than 1000V, it possesses power big, bear the advantage that the shock-absorbing capacity is strong, megger 4 adopts the hand generator power supply mostly, it mainly used examines electrical equipment, domestic appliance or electric circuit are to ground and alternate insulation resistance, with the assurance these equipment, electrical apparatus and circuit work are at normal condition, avoid taking place accidents such as electric shock casualties and equipment damage.

A ferromagnetic surrounding frame 6 is arranged at the top of the bottom plate 1, and the moving plate 2 and the megger 4 are both positioned in a surrounding space of the ferromagnetic surrounding frame 6;

specifically, the ferromagnetic enclosure frame 6 is made of a rigid material, and when the ferromagnetic enclosure frame is not influenced by an external magnetic field, the resultant magnetic moment generated by the molecular current inside the ferromagnetic enclosure frame is macroscopically zero, and then the effect of isolating the external magnetic field can be achieved.

Four groups of rubber suction cups 5 which are arranged in a square mode are installed at the top of the megger 4, a supporting column 7 is installed at the top of each rubber suction cup 5, a square plate 8 is installed at the top of each supporting column 7, a clamping plate 9 is installed at the top of each square plate 8 in a penetrating mode, a recorder 10 is installed at the bottom of each clamping plate 9, and an alarm 11 is installed at the top of each square plate 8.

Specifically, the rubber sucker 5 is made of rubber materials into a bowl-shaped or conical product, the exhaust air can be adsorbed on the surface of a flat object, the device can drive the whole body formed by four groups of rubber suckers 5, four groups of supporting columns 7 and square plates 8 to be attached to the surface of the megger 4, the stability of the whole body formed by the four groups of supporting columns 7 and square plates 8 placed on the megger 4 can be avoided to a certain extent, a circular groove is arranged at the top of the square plate 8 and can be used for installing a clamping plate 9 and a recorder 10, when the megger 4 is started in the device, the recorder 10 is started at the same time, the numerical value inside the megger 4 is recorded through the recorder, meanwhile, the change image is transmitted to an external recording device for recording the detection result and the data generated in the detection process, when the recorder 10 catches that the numerical value in the lower megger is in an uninsulated range, the alarm 11 electrically connected with the high-voltage motor can be started to quickly remind a worker that the high-voltage motor 3 which is being detected does not have the insulation performance.

Example two:

as shown in fig. 3 and 4, the two side outer walls of the moving plate 2 are provided with adjusting grooves 12, the two side outer walls of the moving plate 2 are provided with a supporting folded plate 13 and a limiting enclosing plate 14, the bottom of the limiting enclosing plate 14 is attached to the bottom of the supporting folded plate 13, the bottom wall of the supporting folded plate 13 is provided with a comprehensive plate 15, and the top of the comprehensive plate 15 extends out of the inside of the limiting enclosing plate 14.

A fastening screw 16 is installed on one outer wall of the integrated plate 15, an expansion circular plate is installed at one end of the fastening screw 16, and the outer wall of the expansion circular plate is attached to the inner wall of the adjustment groove 12.

Two sets of L-shaped pressing plates 17 which are arranged diagonally are mounted at the top of the moving plate 2, sleeves 18 are mounted on the outer walls of one sides of the two sets of L-shaped pressing plates 17, an embedded circular plate 19 is mounted on the inner wall of each sleeve 18, a threaded column 20 penetrates through the outer wall of one side of the comprehensive plate 15 and is mounted on the outer wall of one side of the comprehensive plate 20, the threaded column 20 is located above the limiting enclosing plate 14, and one end of the threaded column 20 is attached to the outer wall of one side of the embedded circular plate 19.

Specifically, the adjusting groove 12 is arranged to facilitate the fastening screw 16 to move back and forth inside the adjusting groove under the application of an external force, so as to adjust the contact position between the comprehensive plate 15, the L-shaped pressing plate 17 and the moving plate 2, the support folded plate 13 can provide a supporting force for the comprehensive plate 15, so as to limit the inner wall of the recessed part of the enclosing plate 14 to be attached to the outer wall of the comprehensive plate 15, so as to avoid the falling phenomenon of the comprehensive plate 15 vertically placed above the support folded plate 13, the comprehensive plate 15 can be used to increase the connection between the fastening screw 16 and the threaded column 20, when the fastening screw 16 drives the comprehensive plate 15 to move back and forth under the application of the external force, the threaded column 20 can synchronously drive the embedded circular plate 19, the sleeve 18 and the L-shaped pressing plate 17 to move forward or backward, and then facilitate the front wall of the recessed part of one group of L-shaped pressing plates 17 and the rear wall of the recessed part of the other group of L-shaped pressing plates 17 to be attached to the front and back of the high-voltage motor 3 to be measured respectively, be in the non-fixed gomphosis state between gomphosis plectane 19 and the sleeve 18, when exerting the rotational force of setting for the direction to screw thread post 20, gomphosis plectane 19 can rotate in the inside of sleeve 18, can make the one end of screw thread post 20 move towards high-voltage motor 3 place gradually simultaneously, later support the pressure plate 17 to the L type and produce the motive force, make its department of bending inner wall and the laminating of high-voltage motor 3's outer wall, can be fixed in the top of movable plate 2 with high-voltage motor 3 this moment, avoid when examining, this device receives the collision and leads to high-voltage motor 3 to appear moving phenomenon on movable plate 2, then influence and measure being connected between the patchcord 34.

Example three:

as shown in fig. 5 and 6, two sets of moving grooves 21 arranged in front and back are arranged at the top of the bottom plate 1, two sets of tabling strips 22 arranged in front and back are installed at the bottom of the moving grooves 21, the outer walls of the tabling strips 22 are attached to the inner walls of the moving grooves 21, a fixing block 23 is installed on the bottom wall of the moving grooves 21, the fixing block 23 is located on one side, away from the megger 4, of the tabling strips 22, and locking nails are installed at the tops of the fixing blocks 23 in a penetrating mode.

The outer wall of one side that gomphosis strip 22 is close to fixed block 23 is provided with notch 24, and threaded bush 25 is installed to one side inner wall of notch 24, and electric putter 26 is installed to one side outer wall that fixed block 23 is close to gomphosis strip 22, and screw 27 is installed to electric putter 26's one end, and the outer wall of screw 27 and the inner wall laminating of threaded bush 25.

Specifically, the diameter of the notch 24 is the same as that of the electric push rod 26, when the outer wall of one side of the tabling strip 22 is attached to the outer wall of one side of the fixed block 23, the outer wall of the electric push rod 26 after contraction can be attached to the inner wall of the notch 24, the internal thread of the thread sleeve 25 and the external thread of the thread member 27 can be mutually embedded, and then the assembly and disassembly of the two are facilitated, when the moving plate 2 is assembled, the electric push rod 26 can be inserted into the notch 24 in advance, so that the thread member 27 is aligned with the thread sleeve 25, then the electric push rod 26 is applied with a rotating force to urge the outer wall of the thread member 27 to be attached to the internal of the thread sleeve 25, then the moving plate 2 can be placed on one side of the moving groove 21, the tabling strip 22 and the moving groove 21 are on the same horizontal line with the moving plate, then an urging force toward the position of the dial indicator 4 is applied to the moving plate 2, so that the tabling strip 22 and the fixed block 23 extend into the moving groove 21, when the outer wall of one side of the fixed block 23 far away from the megger 4 and the outer wall of the moving groove 21 are on the same vertical surface, the locking nail can be installed at the top of the fixed block 23, the bottom of the locking nail is enabled to extend into the bottom plate of the moving groove 21, the installation position between the fixed block 23 and the moving plate 2 can be fixed, after the placement of the high-voltage motor 3 to be tested at the top of the moving plate 2 is completed, the electric push rod 26 can be correspondingly started, the high-voltage motor is enabled to extend outwards or shrink inwards, then the embedded strip 22 is correspondingly transmitted with a pushing force or a pulling force, the moving plate 2 is enabled to drive the high-voltage motor 3 to change the distance between the high-voltage motor and the megger 4, and the distance is enabled to be within the effective length range of the measuring flexible wire 34.

Example four:

as shown in fig. 7 and 8, a groove 28 is provided at the top of the bottom plate 1, the groove 28 is located in front of the moving plate 2, a ferromagnetic top plate 29 is mounted at the top of the ferromagnetic enclosure frame 6 through a hinge, a transparent window 30 is mounted at the top of the ferromagnetic top plate 29, and a ferromagnetic front plate 31 is mounted at the front of the ferromagnetic top plate 29 through a hinge.

It is specific, the setting of recess 28, it extends to its inside to be convenient for vertical ferromagnetic front bezel 31 bottom of placing, then avoid ferromagnetic front bezel 31's bottom to appear the phenomenon of skidding forward, make vertical plate of placing change the tilt state into, influence the isolated effect in magnetic field, perspective window 30 adopts transparent glass to make, can make things convenient for the staff to look over and enclose frame 6 by ferromagnetic, ferromagnetic roof 29 and ferromagnetic front bezel 31 enclose the inside situation in space that closes formation, when this device is carrying out insulating properties to high voltage motor 3 and detecting time measuring, it forms the closed condition to need ferromagnetic roof 29 and ferromagnetic front bezel 31 and ferromagnetic to enclose between the frame 6, be used for enclosing table 4 and high voltage motor 3 and close inside its space, avoid detecting time measuring carrying out insulating properties, the magnetic field of external component causes the interference to the detection, influence the testing result.

The top of bottom plate 1 is installed back type frame 32, and returns the outer wall laminating of type frame 32 and megger 4, and megger 4 is close to one side outer wall of high voltage motor 3 and is installed terminal 33, and measurement patchcord 34 is installed to the one end of terminal 33, and rocking handle 35 is installed to the opposite side outer wall of megger 4, and the one end of rocking handle 35 extends the inside that ferromagnetic encloses frame 6.

Specifically, the installation of type frame 32 returns can be used to restrict the position of megger 4, avoids carrying out insulating properties monitoring time, and megger 4 appears the skew phenomenon under the mistake is bumped, influences the monitoring result, and terminal 33 is used for the installation to measure patchcord 34, measures patchcord 34 and is used for being connected with measured high-voltage motor 3, and rocking handle 35 can make things convenient for the inside motor of manual rotation megger 4 for the motor reaches rated revolution.

Specifically, the working steps of the insulation performance detection device are as follows:

s1, a worker applies upward pulling force and backward pushing force to the ferromagnetic front plate 31 at the same time, the pulling force and the pushing force can be transmitted to the ferromagnetic top plate 29, then the ferromagnetic front plate 31 and the ferromagnetic top plate 29 can be gradually separated from the front surface and the top of the ferromagnetic enclosing frame 6, and at the moment, the inner space of the ferromagnetic enclosing frame 6 can be exposed;

s2, a worker places the high-voltage motor 3 to be detected at the top of the movable plate 2, then respectively rotates the nuts arranged on the outer surfaces of the two groups of fastening screws 16, so that the joint between the expansion circular plate and the adjusting groove 12 is loosened, then respectively applies backward and forward driving forces to the two groups of L-shaped abutting plates 17, at the moment, the comprehensive plate 15 can move on the bottom wall of the supporting folded plate 13 until the inner walls of the bent parts of the two groups of L-shaped abutting plates 17 are respectively jointed with the front and the back of the high-voltage motor 3, namely stopping applying the driving forces, and then turning and tightening the nuts;

s3, the threaded column 20 is connected with the comprehensive plate 15 in a threaded embedding manner, a worker applies a rotating force in a set direction to the threaded column 20 to enable one end of the threaded column 20 to gradually move towards the position where the high-voltage motor 3 is located, then a pushing force is generated on the L-shaped pressing plate 17 to enable the inner wall of the bent position of the L-shaped pressing plate to be attached to the outer wall of the high-voltage motor 3, and at the moment, the high-voltage motor 3 can be fixed to the top of the movable plate 2;

s4, the worker starts the two groups of electric push rods 26 through an external controller, and then the electric push rods 26 are enabled to extend outwards or contract inwards to generate pushing force and pulling force towards or away from the megger 4 to the two groups of embedded strips 22, and the operation of the electric push rods 26 is stopped until the distance between the high-voltage motor 3 and the megger 4 reaches a state of connection of a proper measuring flexible wire 34;

s5, a worker removes the wiring on the outer surface of the high-voltage motor 3 to be tested, then relevant elements in the device are subjected to temporary grounding discharge operation to ensure the safety of the human body and the megger 4 and the accuracy of measurement results, then whether the megger 4 is damaged is checked, if the megger 4 is damaged, the megger 4 is replaced, otherwise, one group of measurement flexible wires 34 on the megger 4 are connected with the outer surface of the high-voltage motor 3 to be tested, the other group of measurement flexible wires 34 are connected with one end of a winding, then the ferromagnetic top plate 29 and the ferromagnetic front plate 31 are closed to enable the whole body formed by combining the ferromagnetic top plate 29, the ferromagnetic front plate 31 and the ferromagnetic surrounding frame 6 to form inclusion relation with each component on the bottom plate 1 so as to shield the magnetic field outside the device in the process of detecting the insulating property, then the worker presses the top of the ferromagnetic top plate 29 with the left hand and applies rotating force to the rocking handle 35 with the right hand, and the rotating speed is about 120r/min, when the reading on the internal dial of the megger 4 is stable, the pointed numerical value is the insulation resistance value to the ground of the object to be measured;

s6, when the device runs, the recorder 10 is started, numerical value changes inside the surface plate in the megger 4 are recorded through the recorder 10, meanwhile, the changed images are transmitted to external recording equipment, and when the recorder 10 catches that the numerical value in the surface plate below is in an uninsulated range, the alarm 11 electrically connected with the recorder can be started to quickly remind a worker that the high-voltage motor 3 which is being detected does not have insulation performance.

The working principle is as follows: the worker places the high-voltage motor 3 above the moving plate 2 and then applies backward and forward driving forces to the two sets of L-shaped pressing plates 17 respectively, at this time, the composite plate 15 can move on the bottom wall of the supporting folded plate 13 until the inner walls of the bent parts of the two sets of L-shaped pressing plates 17 are attached to the front and the back of the high-voltage motor 3 respectively, namely, the driving force is stopped being applied, then the nut is tightened, then the worker applies a rotating force in a set direction to the threaded column 20, so that one end of the threaded column 20 can be gradually moved towards the position where the high-voltage motor 3 is located, then the L-shaped pressing plates 17 are generated with driving forces to enable the inner walls of the bent parts to be attached to the outer wall of the high-voltage motor 3, at this time, the high-voltage motor 3 can be fixed on the top of the moving plate 2, at this time, the electric push rod 26 can be started to enable the high-voltage rod to extend outwards or contract inwards, so as to generate driving forces and pulling forces towards or far away from the position of the megger 4 to the two sets of the embedded strips 22, then the worker prepares the preparation, connects the measuring flexible wire 34 with the high-voltage motor 3, then closes the ferromagnetic top plate 29 and the ferromagnetic front plate 31, and enables the whole body formed by the ferromagnetic top plate 29, the ferromagnetic front plate 31 and the ferromagnetic surrounding frame 6 to form an inclusion relation with each component on the bottom plate 1, so as to shield the magnetic field outside the device in the process of detecting the insulation performance, then the worker presses the top of the ferromagnetic top plate 29 with the left hand, and applies rotating force to the crank 35 with the right hand at the rotating speed of about 120r/min, and when the reading on the dial inside the megger 4 is stable, the pointed value is the ground insulation resistance value of the object to be measured.

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

1. The utility model provides an insulating properties detection device that high voltage motor used, includes that bottom plate (1), movable plate (2) high voltage motor (3), megger (4), rubber suction cup (5) and ferromagnetism enclose frame (6), its characterized in that: the top of the bottom plate (1) is provided with a movable plate (2), the top of the movable plate (2) is provided with a high-voltage motor (3), the top of the bottom plate (1) is provided with a megger (4), and the megger (4) is positioned on one side of the movable plate (2);

the top of the bottom plate (1) is provided with a ferromagnetic surrounding frame (6), and the moving plate (2) and the megger (4) are both positioned in a surrounding space of the ferromagnetic surrounding frame (6);

four groups of rubber suction cups (5) that are square arrangement are installed at the top of megger (4), support column (7) are installed at the top of rubber suction cup (5), square board (8) are installed at the top of support column (7), the top of square board (8) is run through and is installed block board (9), recorder (10) are installed to the bottom of block board (9), alarm (11) are installed at the top of square board (8).

2. The insulation performance detection device for a high-voltage motor according to claim 1, characterized in that: the utility model discloses a limit fence, including movable plate (2), supporting folded plate (13) and restriction bounding wall (14), the both sides outer wall of movable plate (2) all is provided with adjustment tank (12), the both sides outer wall of movable plate (2) all installs supporting folded plate (13) and restriction bounding wall (14), and the bottom of restriction bounding wall (14) and the bottom laminating of supporting folded plate (13), comprehensive board (15) are installed to the diapire of supporting folded plate (13), and the inside of restriction bounding wall (14) is extended at the top of comprehensive board (15).

3. The insulation performance detection device for a high-voltage motor according to claim 2, characterized in that: the outer wall of one side of combined plywood (15) runs through and installs fastening screw (16), the extension plectane is installed to the one end of fastening screw (16), and the outer wall of extension plectane and the inner wall laminating of adjustment tank (12).

4. The insulation performance detection device for a high-voltage motor according to claim 1, characterized in that: two sets of L types that are the diagonal arrangement are installed at the top of movable plate (2) and are supported clamp plate (17), and are two sets of the L type supports one side outer wall of clamp plate (17) and all installs sleeve (18), gomphosis plectane (19) are installed to the inner wall of sleeve (18), one side outer wall of combined plywood (15) runs through and installs screw thread post (20), and screw thread post (20) are located the top of restriction bounding wall (14), the one end of screw thread post (20) is laminated with one side outer wall of gomphosis plectane (19).

5. The insulation performance detection device for a high-voltage motor according to claim 1, characterized in that: the top of bottom plate (1) is provided with shifting chute (21) that two sets of front and back were arranged, the bottom of shifting chute (21) is installed two sets of gomphosis strip (22) of arranging around, and the outer wall of gomphosis strip (22) and the inner wall laminating of shifting chute (21), fixed block (23) are installed to the diapire of shifting chute (21), and fixed block (23) are located one side that megger (4) were kept away from in gomphosis strip (22), the top of fixed block (23) is run through and is installed the locking nail.

6. The insulation performance detection device for a high-voltage motor according to claim 5, characterized in that: the utility model discloses a thread bush, including gomphosis strip (22), one side outer wall that gomphosis strip (22) are close to fixed block (23) is provided with notch (24), thread bush (25) are installed to one side inner wall of notch (24), one side outer wall that fixed block (23) are close to gomphosis strip (22) installs electric putter (26), screw (27) are installed to the one end of electric putter (26), and the outer wall of screw (27) and the inner wall laminating of thread bush (25).

7. The insulation performance detection device for a high-voltage motor according to claim 1, characterized in that: the top of bottom plate (1) is provided with recess (28), and recess (28) are located the place ahead of movable plate (2), ferromagnetic roof (29) are installed through the hinge at the top that ferromagnetic encloses frame (6), perspective window (30) are installed at the top of ferromagnetic roof (29), ferromagnetic front bezel (31) are installed through the hinge in the front of ferromagnetic roof (29).

8. The insulation performance detection device for a high-voltage motor according to claim 1, characterized in that: the utility model discloses a high-voltage motor, including bottom plate (1), the top of bottom plate (1) is installed back type frame (32), and returns the outer wall laminating of the inner wall of type frame (32) and megger (4), megger (4) are close to one side outer wall of high-voltage motor (3) and install terminal (33), measurement patchcord (34) are installed to the one end of terminal (33), rocking handle (35) are installed to the opposite side outer wall of megger (4), and the one end of rocking handle (35) extends the inside that ferromagnetic encloses frame (6).

9. The insulation performance detection device for a high-voltage motor according to any one of claims 1 to 8, characterized by operating as follows:

s1, a worker applies upward pulling force and backward pushing force to a ferromagnetic front plate (31) at the same time, the pulling force and the pushing force can be transmitted to a ferromagnetic top plate (29), then the ferromagnetic front plate (31) and the ferromagnetic top plate (29) can be gradually separated from the front surface and the top of a ferromagnetic enclosing frame (6) to be in contact, and at the moment, the internal space of the ferromagnetic enclosing frame (6) can be exposed;

s2, a worker places the high-voltage motor (3) to be detected at the top of the movable plate (2), then nuts installed on the outer surfaces of the two groups of fastening screws (16) are rotated respectively, so that the joint between the expansion circular plate and the adjusting groove (12) is loosened, then backward and forward driving forces are applied to the two groups of L-shaped pressing plates (17) respectively, at the moment, the comprehensive plate (15) can move on the bottom wall of the supporting folded plate (13), until the inner walls of the bent parts of the two groups of L-shaped pressing plates (17) are respectively jointed with the front side and the back side of the high-voltage motor (3), namely, the driving force is stopped being applied, and then the nuts are tightened;

s3, the threaded column (20) is connected with the comprehensive plate (15) in a threaded embedding manner, a worker applies a rotating force in a set direction to the threaded column (20), so that one end of the threaded column (20) can gradually move towards the position where the high-voltage motor (3) is located, then a pushing force is generated on the L-shaped abutting plate (17), the inner wall of the bent position of the L-shaped abutting plate is enabled to be attached to the outer wall of the high-voltage motor (3), and the high-voltage motor (3) can be fixed to the top of the movable plate (2);

s4, a worker starts the two groups of electric push rods (26) through an external controller, then the electric push rods (26) are prompted to extend outwards or contract inwards, so that pushing force and pulling force towards or away from the megger (4) are generated on the two groups of embedded strips (22), and the electric push rods (26) stop running until the distance between the high-voltage motor (3) and the megger (4) reaches a state of being connected with a proper measuring flexible wire (34);

s5, removing the wiring on the outer surface of the high-voltage motor (3) to be detected by an operator, then carrying out temporary grounding discharge operation on related elements in the device to ensure the safety of the human body and the megger (4) and the accuracy of the measurement result, then checking whether the megger (4) is damaged, if the megger (4) is damaged, replacing the megger (4), otherwise, connecting one group of measurement flexible wires (34) on the megger (4) with the outer surface of the high-voltage motor (3) to be detected, connecting the other group of measurement flexible wires (34) with one end of a winding, then closing the ferromagnetic top plate (29) and the ferromagnetic front plate (31), and promoting the ferromagnetic top plate (29), the ferromagnetic front plate (31) and the ferromagnetic surrounding frame (6) to form an inclusion relation with each component on the bottom plate (1) to shield a magnetic field outside the device in the process of detecting the insulating property, and then pressing the top of the ferromagnetic top plate (29) by the left hand of the operator, the right hand applies rotating force to the rocking handle (35), the rotating speed is about 120r/min, and when the reading on the internal dial of the rocking meter (4) is stable, the pointed numerical value is the insulation resistance value to the ground of the object to be measured;

s6, when the device runs, the recorder (10) is started, numerical value changes inside the surface disc in the megger (4) are recorded through the recorder, the changed images are transmitted to external recording equipment, and when the recorder (10) captures that numerical values in the surface disc below are in an uninsulated range, the alarm (11) electrically connected with the recorder can be started to quickly remind a worker that the high-voltage motor (3) which is detecting does not have insulating performance.