CN220806725U - Large-scale AC motor slip ring, DC motor commutator on-site trolley bus grinding device - Google Patents

Abstract

The utility model relates to the field of large motor maintenance, in particular to a large alternating current motor slip ring and direct current motor commutator field trolley bus grinding device which comprises a support base, wherein a multidirectional moving assembly can be detachably arranged above the support base, a first insulation module is detachably arranged between the multidirectional moving assembly and the support base, a supporting table capable of sliding left and right is arranged at the top end of the multidirectional moving assembly, a machining assembly is detachably arranged above the supporting table, the machining assembly comprises a turning module and a grinding module, and a second insulation module is detachably arranged between the machining assembly and the supporting table; the on-site trolley-bus grinding device for the large-scale alternating-current motor slip ring and the direct-current motor commutator can carry out on-site on-line trolley grinding processing on the large-scale motor, and the trolley grinding device is insulated, so that the commutator and the slip ring are not grounded during electrified turning and grinding, harmful electric sparks and noise are not generated at maintenance positions, and the cutting concentricity of the commutator and the slip ring is ensured.

Description

Large-scale AC motor slip ring, DC motor commutator on-site trolley bus grinding device

Technical Field

The utility model relates to the field of maintenance of large motors, in particular to a field trolley bus grinding device for a slip ring of a large alternating current motor and a commutator of a direct current motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the law of electromagnetic induction. Its main function is to generate driving torque as power source for electric appliances or various machines.

In the long-term running process of a large motor, the commutator or the slip ring is always ignited due to the reasons of abrasion of the slip ring, overload of the motor, improper maintenance and the like, and when the ignition is serious, the surface of the commutator or the slip ring is possibly burnt, so that scars on the surface of the commutator or the slip ring cannot keep running, and turning and grinding treatment must be carried out on the commutator and the slip ring.

When the commutator and the slip ring of the large motor are scared and need to be maintained, the prior art is realized by adopting a rotor overhauling mode, but the rotor weighing tens of tons is disassembled and transported to a maintenance factory for maintenance, the maintenance is very troublesome and difficult, huge manpower and material resources are consumed, and the production progress is possibly seriously delayed, so that the commutator and the slip ring on the rotor are electrified cut and ground after the equipment condition and the construction period are generally considered, and the short circuit mode is generally adopted during cutting or grinding. Because of the charged turning and grinding, the contact position can generate electric sparks and huge sounds during maintenance, and a certain danger can be generated for the staff, so that the staff generates great psychological pressure, and the concentricity of cutting cannot be ensured during cutting or grinding, therefore, how to overcome the technical problems and defects in the prior art becomes a problem to be solved.

Disclosure of utility model

The utility model aims to overcome the defects described in the background art, thereby realizing a field live belt electric grinding device for a large-sized alternating current motor slip ring and a direct current motor commutator, which can carry out field online turning and grinding processing on the large-sized motor, and carry out insulation treatment on the turning and grinding device, so that the commutator and the slip ring are not grounded during live turning and grinding, harmful electric sparks and noise are not generated at maintenance positions, and the cutting concentricity of the commutator and the slip ring can be ensured.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a large-scale AC motor slip ring, DC motor commutator field take the electric car and grind the device, including supporting the base. The multi-directional moving assembly is detachably arranged above the supporting base, and a first insulation module is detachably arranged between the multi-directional moving assembly and the supporting base. The top end of the multidirectional moving assembly is provided with a supporting table capable of sliding left and right. The upper part of the supporting table can be detachably provided with a machining assembly, and the machining assembly comprises a turning module and a grinding module. And a second insulation module is detachably arranged between the processing assembly and the supporting table.

In the large-scale AC motor slip ring and DC motor commutator field trolley bus grinding device, the first insulation module and the second insulation module comprise insulation plates, insulation sleeves and insulation pads. The insulating plates are respectively positioned between the multidirectional moving assembly and the supporting base and between the processing assembly and the supporting table. The insulating sleeve and the insulating pad are sleeved on the bolt penetrating through the insulating plate. Through the earthing of the insulation module disconnecting device, electric sparks and sounds are avoided during turning and grinding, psychological pressure is not caused to staff, and therefore concentricity of the commutator after cutting and slip ring grinding is guaranteed.

In the large-scale AC motor slip ring and DC motor commutator field trolley bus grinding device, the insulating pad is divided into an upper pad and a lower pad, and the upper pad and the lower pad are respectively arranged at two ends of the bolt.

In the on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor, the multidirectional moving assembly comprises a fixed frame which is in threaded arrangement with the supporting base. The insulating board is located between mount and the support base. The middle part at mount top slides back and forth and is provided with the longitudinal movement board, the inside of longitudinal movement board is provided with the first lead screw subassembly that controls its back and forth slip on the mount. The top end of the longitudinal moving plate is provided with a transverse moving plate in a sliding manner, and a second screw rod assembly for controlling the transverse moving plate to slide back and forth on the longitudinal moving plate is arranged in the transverse moving plate. And the first screw rod assembly and the second screw rod assembly are fixedly provided with hand wheels. The first screw rod assembly and the second screw rod assembly can be controlled through the hand wheel, and meanwhile, the second screw rod assembly can be independently driven through a motor arranged on the side part of the hand wheel.

In the on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor, backing plates are arranged between the fixing frame and the longitudinal moving plate and between the longitudinal moving plate and the transverse moving plate. The side parts of the fixing frame and the side parts of the longitudinal moving plates are respectively provided with an adjusting screw rod in a threaded manner, and the adjusting screw rods are abutted against the base plates. And limiting the longitudinal moving plate and the transverse moving plate through the adjusting screw and the base plate.

In the on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor, the turning module comprises a feed amount adjusting structure which is detachably arranged at the top end of the supporting table, and a cutter rest is rotatably arranged at the top end of the feed amount adjusting structure.

In the large-scale AC motor slip ring and DC motor commutator field trolley bus grinding device, the feed amount adjusting structure comprises a first fixed plate, a first adjusting plate and a third screw rod assembly. The first fixed plate is in threaded connection with the supporting table, and the insulating plate is located between the first fixed plate and the supporting table. The third screw rod assembly controls the first adjusting plate to slide back and forth at the top end of the first fixing plate. And a hand wheel is fixedly arranged on the third screw rod assembly and drives the third screw rod assembly to work.

In the large-scale AC motor slip ring and DC motor commutator field trolley bus grinding device, the grinding module comprises a position adjusting structure which is detachably arranged at the top end of the supporting table. The top of position control structure can be dismantled and is provided with the braced frame, the fixed limiting plate that is provided with in top of braced frame, the lateral part of limiting plate is fixed with the support column. The motor is fixedly arranged on the other side of the limiting plate, and a grinding tool is detachably arranged at the output end of the motor. And a baffle corresponding to the position of the grinding tool is fixedly arranged on the supporting frame at the side part of the limiting plate.

In the on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor, the position adjusting structure comprises a second fixing plate which is in threaded arrangement with the supporting table. The middle part at second fixed plate top slides back and forth and is provided with the second regulating plate, the inside of second regulating plate is provided with the fourth lead screw subassembly that controls its back and forth slip on the second fixed plate. And a hand wheel is fixedly arranged on the fourth screw rod assembly and drives the fourth screw rod assembly to work. The top of second regulating plate slides about and is provided with the third regulating plate, the inside of third regulating plate is provided with the fifth lead screw subassembly that controls its back-and-forth slip on the second regulating plate. And a hand wheel is fixedly arranged on the fifth screw rod assembly, and the hand wheel drives the fifth screw rod assembly to work. The top end of the third adjusting plate is provided with a movable table capable of sliding left and right.

The on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor has the beneficial effects that:

1. The utility model relates to a large-scale AC motor slip ring and DC motor commutator field live-belt electric car grinding device, which is provided with a first insulation module and a second insulation module, and is used for insulating a turning and grinding device, so that a cutter is not grounded during live turning and grinding of the commutator and the slip ring, electric spark and sound can not be generated at a maintenance contact position, and meanwhile, workers can not be damaged by electrifying, so that no psychological pressure is generated during turning of the workers, and concentricity of the commutator after cutting and slip ring grinding is ensured.

2. The on-site trolley bus grinding device for the large-scale alternating current motor slip ring and the direct current motor commutator is provided with the multidirectional moving assembly, so that the cutter can be moved in multiple directions, and the cutter can be moved to the position of the commutator by personnel conveniently.

3. The on-site trolley bus grinding device for the large-scale alternating current motor slip ring and the direct current motor commutator is provided with the feed amount adjusting structure and the tool rest table, so that the position of a tool can be fixed and adjusted, the feed amount of the commutator is changed, the whole commutator is cut, and the concentricity of the commutator is further ensured.

4. The on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor is provided with the position adjusting structure, the motor and the grinding tool, and the position and depth of the slip ring can be changed by adjusting the position of the grinding tool, so that the commutator is maintained and processed, and the concentricity of the commutator is ensured.

5. The on-site trolley bus grinding device for the slip ring of the large alternating current motor and the commutator of the direct current motor can perform on-site on-line trolley grinding processing on the large motor, avoid long-time production stopping of a production line caused by detaching a rotor from the motor for maintenance, greatly save time cost and maintenance cost, and can be directly installed for production restoration after maintenance treatment on the rotor on site, thereby ensuring production progress.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a turning module of a large AC motor slip ring and DC motor commutator field belt electric car grinding device;

FIG. 2 is a schematic view of a grinding module structure of a large AC motor slip ring and DC motor commutator field belt electric car grinding device;

FIG. 3 is a schematic diagram of the position adjusting structure of the on-site trolley bus grinding device of the slip ring of the large AC motor and the commutator of the DC motor;

FIG. 4 is a schematic diagram of the explosion structure of the holder and backing plate of the on-site trolley mill device for the slip ring of the large AC motor and the commutator of the DC motor;

Fig. 5 is a schematic diagram of an exploded construction of a first insulation module of a large ac motor slip ring, dc motor commutator field belt electric vehicle grinding apparatus of the present utility model.

In the figure: 1. a support base;

2. A multi-directional movement assembly; 21. a fixing frame; 22. a longitudinally moving plate; 23. a first lead screw assembly; 24. a lateral moving plate; 25. a second lead screw assembly;

3. a first insulating module; 6. a second insulating module; 31. an insulating plate; 32. an insulating sleeve;

33. An insulating pad; 331. a gasket is arranged on the upper part; 332. a lower gasket;

4. A support table;

5. Processing the assembly; 51. turning a module; 511. a feed amount adjusting structure; 5111. a first fixing plate; 5112. a first adjustment plate; 5113. a third lead screw assembly;

512. A tool rest;

52. a grinding module; 521. a position adjustment structure; 5211. a second fixing plate; 5212. a second adjusting plate; 5213. a fourth lead screw assembly; 5214. a third adjusting plate; 5215. a fifth lead screw assembly; 5216. a mobile station;

522. A support frame; 523. a limiting plate; 524. a support column; 525. a motor; 526. grinding tool; 527. a baffle;

7. A backing plate; 8. and adjusting the screw.

Detailed Description

The large-sized AC motor slip ring and DC motor commutator field trolley bus grinding device of the utility model is described in more detail below by specific embodiments with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the on-site live car grinding device for the slip ring and the direct current motor commutator of the large alternating current motor can carry out on-site online car grinding processing on the large motor, and the car grinding device is subjected to insulation processing, so that the commutator and the slip ring are not grounded during live turning and grinding, electric sparks and sounds are not generated at maintenance positions, and the cutting concentricity of the commutator and the slip ring can be ensured. In the present embodiment, a support base 1 is included. The multidirectional moving assembly 2 is detachably arranged above the supporting base 1. The multidirectional movement assembly 2 comprises a fixing frame 21 in threaded arrangement with the support base 1. The middle part at the top end of the fixing frame 21 is provided with a longitudinal moving plate 22 in a sliding way back and forth, the fixing frame 21 is provided with a dovetail groove, and the longitudinal moving plate 22 is in sliding connection with the fixing frame 21 through the dovetail groove. The inside of the longitudinally moving plate 22 is provided with a first screw assembly 23 for controlling the longitudinal sliding thereof on the fixed frame 21. The first screw assembly 23 is a conventional screw assembly, and the specific structure and design thereof will not be described again.

The top end of the longitudinal moving plate 22 is provided with a transverse moving plate 24 in a left-right sliding manner, the top end of the longitudinal moving plate 22 is provided with a dovetail groove, and the transverse moving plate 24 is in sliding connection with the longitudinal moving plate 22 through the dovetail groove. The inside of the traverse plate 24 is provided with a second screw assembly 25 for controlling the forward and backward sliding thereof on the longitudinal movement plate 22. The second screw assembly 25 is a conventional screw assembly, and the specific structure and design thereof will not be described again. And a hand wheel is fixedly arranged on each of the first screw rod assembly 23 and the second screw rod assembly 25. The first screw rod assembly 23 and the second screw rod assembly 25 can be controlled through a hand wheel, and meanwhile, the second screw rod assembly 25 can be independently driven through a motor 525 arranged on the side part of the hand wheel. When the device is in use, the device is moved to a station by a crane, and then the position of the longitudinally moving plate 22 is adjusted by rotating a hand wheel. The device can then be adjusted to the appropriate position by controlling the movement of the traverse plate 24 over the longitudinal movement plate 22 by means of a hand wheel or motor 525.

The base plate 7 is arranged between the fixed frame 21 and the longitudinal moving plate 22 and between the longitudinal moving plate 22 and the transverse moving plate 24. The side parts of the fixing frame 21 and the side parts of the longitudinal moving plate 22 are respectively provided with an adjusting screw rod 8 in a threaded manner, and the adjusting screw rods are abutted against the base plate 7. The longitudinal moving plate 22 and the transverse moving plate 24 are limited by the adjusting screw 8 and the backing plate 7. After the positions of the longitudinal moving plate 22 and the transverse moving plate 24 are adjusted, the base plate 7 is used for extruding and limiting the longitudinal moving plate 22 and the transverse moving plate 24 by rotating the adjusting screw 8, so that the positions of the longitudinal moving plate 22 and the transverse moving plate 24 are fixed.

In order to change the position and feed of the tool. Referring to fig. 1, 4 and 5, in the present embodiment, the top end of the multidirectional movement assembly 2 is provided with a support table 4 that can slide left and right. The top end of the lateral moving plate 24 is provided with a plurality of T-shaped grooves, and the supporting table 4 and the lateral moving plate 24 are slidably arranged and move and limit along the T-shaped grooves through bolts. A machining assembly 5 is detachably arranged above the support table 4, and the machining assembly 5 comprises a turning module 51. The turning module 51 includes a feed amount adjustment structure 511 detachably provided to the top end of the support table 4. The feed amount adjustment structure 511 includes a first fixing plate 5111, a first adjustment plate 5112, and a third screw assembly 5113. The top of the supporting table 4 is fixedly provided with a round table, and the first fixing plate 5111 is in threaded connection with the round table. The top end of the first fixing plate 5111 is provided with a dovetail groove, and the first adjusting plate 5112 is slidably disposed with the first fixing plate 5111 through the dovetail groove. The third screw assembly 5113 controls the first adjustment plate 5112 to slide back and forth on the top end of the first fixing plate 5111. A hand wheel is fixedly arranged on the third screw rod assembly 5113, and the hand wheel drives the third screw rod assembly 5113 to work. The third screw assembly 5113 is a conventional screw assembly, and the specific structure and design thereof will not be described again. The top end of the feed amount adjusting structure 511 is rotatably provided with a tool rest 512. The tool rest table 512 is a conventional on-lathe tool rest table 512. The tool rest table 512 is provided with a handle.

When turning of the commutator is required, the turning module 51 is first mounted on the circular table. Then, after the positions of the longitudinally movable plate 22 and the laterally movable plate 24 are adjusted, the bolts between the support table 4 and the laterally movable plate 24 are loosened. The support table 4 is moved to a proper position, and then the bolts are re-screwed to limit the support table 4. At this time, the position of the first regulation plate 5112 can be changed by the hand wheel so that the cutter approaches the commutator. The angle of the tool rest 512 can then be changed by the handle to bring the tool into contact with the rotating commutator, thereby cutting the commutator.

In order to insulate the cutter, electric sparks are avoided between the cutter and the commutator. In the present embodiment, referring to fig. 1, 4 and 5, a first insulation module 3 is detachably disposed between the multi-directional moving assembly 2 and the support base 1. A second insulation module 6 is detachably arranged between the feed amount adjusting structure 511 and the supporting table 4. The first insulation module 3 and the second insulation module 6 each comprise an insulation plate 31, an insulation sleeve 32 and an insulation pad 33. The insulating plates 31 are respectively positioned between the multidirectional moving assembly 2 and the supporting base 1 and between the processing assembly 5 and the supporting table 4. The insulating plate 31 is located between the fixing frame 21 and the supporting base 1. The insulating plate 31 is also located between the first fixing plate 5111 and the support table 4. The insulating sleeve 32 and the insulating pad 33 are sleeved on the bolts penetrating through the insulating plate 31. The insulating pad 33 is divided into an upper pad 331 and a lower pad 332, and the upper pad 331 and the lower pad 332 are respectively disposed at both end portions of the bolt.

When the device is assembled, the insulating plate 31 is placed between the fixing frame 21 and the support base 1 and between the first fixing plate 5111 and the support table 4, and the insulating sleeve 32 and the insulating pad 33 are sleeved on the bolts passing through the insulating plate 31, so that when the commutator is cut, the circuit connection between the fixing frame 21 and the support base 1 and between the first fixing plate 5111 and the support table 4 is disconnected. So that the current from the commutator to the tool cannot form a loop, and the tool is not grounded. When the commutator is cut, electric sparks and sounds cannot be generated at the contact position of the cutter and the commutator, meanwhile, the cutter cannot be electrified to cause injury to staff, so that no psychological pressure is generated when the staff turns, and the cutting concentricity of the commutator is ensured.

To change the position of the abrasive article 526. Referring to fig. 2 and 3, in this embodiment, the machining assembly 5 includes a grinding module 52. The grinding module 52 comprises a position adjusting structure 521 detachably arranged at the top end of the supporting table 4. The position adjusting structure 521 includes a second fixing plate 5211 screwed to the support table 4, and the insulating plate 31 is located between the second fixing plate 5211 and the circular table. The middle part of the top end of the second fixing plate 5211 is provided with a second adjusting plate 5212 in a sliding manner. The second fixing plate 5211 is provided with a dovetail groove, and the second adjusting plate 5212 is slidably connected with the second fixing plate 5211 through the dovetail groove. The second adjusting plate 5212 is provided with a fourth screw assembly 5213 for controlling the second adjusting plate 5211 to slide back and forth, and the fourth screw assembly 5213 is a conventional screw assembly, and the specific structure and design thereof will not be described again. A hand wheel is fixedly arranged on the fourth screw rod assembly 5213. The fourth screw assembly 5213 can be controlled by a hand wheel, and the top end of the second adjusting plate 5212 is provided with a third adjusting plate 5214 in a left-right sliding manner. The second adjusting plate 5212 is provided with a dovetail groove, and the third adjusting plate 5214 is slidably connected with the second adjusting plate 5212 through the dovetail groove. The third adjusting plate 5214 is internally provided with a fifth screw assembly 5215 for controlling the third adjusting plate 5214 to slide back and forth on the second adjusting plate 5212, and the fifth screw assembly 5215 is a conventional screw assembly, and the specific structure and design thereof will not be described again. A hand wheel is fixedly arranged on the fifth screw rod assembly 5215. The fifth screw assembly 5215 can be controlled by a hand wheel, and a movable table 5216 capable of sliding left and right is provided at the top end of the third adjusting plate 5214. The top end of the third adjusting plate 5214 is provided with a plurality of T-shaped grooves, and the moving table 5216 and the third adjusting plate 5214 are slidably arranged and move and limit along the T-shaped grooves through bolts.

When it is desired to grind the slip ring, the grinding module 52 is mounted on the table by bolts. At this time, an insulating plate 31 is disposed between the second fixing plate 5211 and the circular truncated cone, an insulating sleeve 32 and an insulating pad 33 are sleeved on the bolt, and an insulating plate 31 is also disposed between the upper spacer 331 and the second fixing plate 5211. The bolt between the third regulator plate 5214 and the mobile station 5216 is then loosened. The mobile station 5216 is moved into position and then the bolts are re-tightened to stop the mobile station 5216. The positions of the second and third adjustment plates 5212, 5214 are then adjusted by the hand wheel to bring the grinding module 52 into proximity with the slip ring.

Referring to fig. 2 and 3, in the present embodiment, a top end of the position adjusting structure 521 is detachably provided with a support frame 522. A limiting plate 523 is fixedly arranged at the top end of the supporting frame 522. The side of the limiting plate 523 is fixed with a supporting column 524, and the other side of the limiting plate 523 is fixedly provided with a motor 525. The output end of the motor 525 is detachably provided with a grinding tool 526. The baffle 527 corresponding to the position of the grinding tool 526 is fixedly arranged on the support frame 522 at the side part of the limit plate 523.

When the position is adjusted such that the grinder 526 will be in contact with the slip ring, the motor 525 is turned on, causing the grinder 526 to operate. The slip ring is then ground by adjusting the position of the grinder 526 via the support column 524 or the hand wheel. After finishing the grinding, the wire may be wound around the support column 524 for storage.

The utility model relates to a use method of a large-scale direct-current motor 525 slip ring and commutator field trolley bus grinding device, which comprises the following steps: first, when cutting the diverter, the turning module 51 is mounted on the circular table. At this time, the insulating plate 31 is interposed between the fixing frame 21 and the support base 1 and between the first fixing plate 5111 and the support table 4. And the insulating sleeve 32 and the insulating pad 33 are sleeved on the bolts penetrating through the insulating plate 31. The circuit connection between the fixing frame 21 and the support base 1 and between the first fixing plate 5111 and the support table 4 is disconnected. So that the current transferred to the tool by the commutator cannot form a loop, and the tool is not grounded. The device is then moved to a station by the crane, and the hand wheel is then rotated to adjust the position of the longitudinally moving plate 22. The laterally moving plate 24 is now controlled to move over the longitudinally moving plate 22 by a hand wheel or motor 525. After the tool carrier has been moved into position, the longitudinal movement plate 22 and the transverse movement plate 24 are secured in a limited manner by the adjusting screw 8 pressing the shim plate 7. The support table 4 is then manually adjusted in position on the laterally moving plate 24 by bolts, and is fixed by bolts after being moved to a proper position. The first regulation plate 5112 can be changed in position by a hand wheel to change the position of the tool rest 512, the tool tip is close to the commutator, and then the tool tip is contacted with the commutator by a handle to cut the commutator. At the moment, a loop cannot be formed between the cutter and the commutator, electric sparks and sounds cannot be generated at the contact position of the cutter and the commutator, meanwhile, the cutter cannot be electrified to cause injury to staff, so that no psychological pressure is generated during turning of the staff, and concentricity of the commutator after cutting is ensured.

During specific operation, the motor end cover is firstly taken down, the brush frame at the upper half part is also taken down, and the brush frame at the lower half part moves backwards by 90 degrees, so that a turning space is reserved.

A simple lathe bed frame with automatic feed is arranged on the right side of the commutator, the lathe bed frame is adjusted to correct balance by taking the axis of a motor as a reference, and then the commutator is corrected by taking a shaft neck as a reference. The deflection degree is required to be 0.01mm, and the ellipticity is required to be within 0.07 mm.

And testing the magnetic field center line by using an induction method, and finding out the neutral line position of the electric brush.

And sealing the lifting piece part of the commutator by using a paperboard so as to prevent copper powder generated by turning from entering the root part of the lifting piece.

A group of short-circuit brushes are arranged at the top ends of the commutating blades short-circuited at the tip of the turning tool. The tip is aligned with the neutral position of the first set of brushes on the mechanical center line of the commutator.

The cutting parameters are as follows: cutting speed is 2-2.5 m/s (diameter of commutator is 1.6 m); the cutting rotating speed is 20-30 r/min; when in rough cutting, the cutting amount is 0.2mm; when the semen is used, the cutting tool is 0.1mm.

When turning is started, the turning procedure: test turning excitation voltage 50V, excitation current 280A, armature voltage 130V, armature current 200A and rotating speed 13r/min. The turning condition is good, and no spark exists. Thus deciding the formal turning.

The first cutter of the formal turning has excitation voltage of 50V, excitation current of 280A, armature voltage of 150V, armature current of 200A, rotating speed of 14-15 r/min, cutting depth of 0.2mm, feed amount of 4mm/min and finishing turning by 2 h.

And after the second turning tool is used for blowing the commutator by compressed air, the second turning is carried out. At this time, the armature voltage is 160V, the armature current is 200A, the excitation is unchanged, the rotating speed is 15r/min, the cutting depth is 0.18mm, and the feeding amount is 4mm/min, so that the situation is good.

The armature voltage, current and excitation mode of the formal turning third tool are the same as before. The cutting depth is 0.18mm, and the feeding amount is 2.2mm/min. Finally, the cutting depth of finish turning is 0.1mm, and the feed amount is still 2.2mm/min. The rotation speed is 16r/min. After the mica of the commutator is subjected to lower engraving, chamfering and cleaning, the resistance between the commutator segments is tested and is the same as that before turning. And finally, polishing the surface of the commutator again, wherein the rotating speed is 20r/min, the rotating speed is 4h, and the roughness meets the requirements. The turned commutator works well.

When it is desired to grind the slip ring, the grinding module 52 is mounted on the table. At this time, an insulating sheet is installed between the second fixing plate 5211 and the circular truncated cone, and is fixed by bolts sleeved with the insulating sleeve 32 and the insulating pad 33. The device is then moved to the slip ring, and the position of the grinder 526 is then adjusted by the hand wheel, in the same manner as when turning the commutator. And then the motor 525 is turned on to enable the grinding tool 526 to grind the slip ring, and at the moment, no electric spark and no sound are generated at the contact position between the grinding tool 526 and the slip ring because a loop cannot be formed between the grinding tool 526 and the slip ring. Meanwhile, the grinding tool 526 is not electrified to cause injury to staff, so that the staff has no psychological pressure during grinding, and concentricity of the slip ring after grinding is ensured.

In specific operation, the tool rest and the supporting plate of the common lathe are used for disassembly and placement on the temporary iron frame with the insulating plate. The iron is fixed to the side of the slip ring.

And the height and the angle of the turning tool are adjusted. The turning tool is a YW-type hard gold knife or a YT15 knife head. The height and angle of the turning tool are matched with the machining position of the collecting ring.

And (3) moving the turning tool of the knife rest back and forth for several times along the axial direction by using a crank, and checking whether the turning tool is uniform with the surfaces of the three collecting rings.

The motor is idled.

At this time, the lathe tool is contacted with the current collecting surface, and the lathe tool is firstly moved along the axial direction, and the cutting tool is taken by about 0.5mm, so that the purpose is to firstly turn the part of the severely uneven concave-convex pit on the next part, and at the same time, the lathe tool is also used for trial run alignment.

And after no problem, turning is repeated along the axial direction until burn points and pits on the surface of the collecting ring are thoroughly removed.

And then wrapping the flat file with No. 0 abrasive cloth for fine grinding, turning over the abrasive cloth, wrapping the shoulder file with the coarse cloth on the back surface of the abrasive cloth, and polishing the surface of the collecting ring for 1-2 times.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The use of the terms "a" and "an" and similar referents in the description and claims of the utility model are not necessarily to scale. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

While the exemplary embodiments of the present utility model have been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that many changes and modifications can be made to the specific embodiments described above without departing from the spirit of the utility model, and that many combinations of technical features and structures can be made without departing from the scope of the utility model.

Claims (9)

1. A large-scale AC motor sliding ring, DC motor commutator on-site take the electric car to grind the device, its characterized in that: including supporting base (1), the top of supporting base (1) can be dismantled and be provided with multidirectional removal subassembly (2), can dismantle between multidirectional removal subassembly (2) and supporting base (1) and be provided with first insulation module (3), but the top of multidirectional removal subassembly (2) is provided with left and right sides gliding brace table (4), the top of brace table (4) can be dismantled and be provided with processing subassembly (5), processing subassembly (5) include turning module (51) and grinding module (52), can dismantle between processing subassembly (5) and brace table (4) and be provided with second insulation module (6).

2. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 1, characterized in that: the first insulation module (3) and the second insulation module (6) comprise insulation plates (31), insulation sleeves (32) and insulation pads (33), the insulation plates (31) are respectively located between the multidirectional moving assembly (2) and the supporting base (1) and between the machining assembly (5) and the supporting table (4), and the insulation sleeves (32) and the insulation pads (33) are respectively sleeved on bolts penetrating through the insulation plates (31).

3. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 2, characterized in that: the insulating pad (33) is divided into an upper gasket (331) and a lower gasket (332), and the upper gasket (331) and the lower gasket (332) are respectively arranged at two ends of the bolt.

4. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 1, characterized in that: the multidirectional moving assembly (2) comprises a fixing frame (21) which is in threaded arrangement with a supporting base (1), a longitudinal moving plate (22) is arranged in the middle of the top end of the fixing frame (21) in a back-and-forth sliding manner, a first screw rod assembly (23) which controls the longitudinal moving plate (22) to slide back-and-forth on the fixing frame (21) is arranged in the longitudinal moving plate (22), a transverse moving plate (24) is arranged in the top end of the longitudinal moving plate (22) in a left-and-right sliding manner, and a second screw rod assembly (25) which controls the longitudinal moving plate (22) to slide back-and-forth is arranged in the transverse moving plate (24).

5. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 4, characterized in that: backing plates (7) are arranged between the fixing frame (21) and the longitudinal moving plate (22) and between the longitudinal moving plate (22) and the transverse moving plate (24), and adjusting screws (8) abutted to the backing plates (7) are arranged on the side portions of the fixing frame (21) and the side portions of the longitudinal moving plate (22) in a threaded mode.

6. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 1, characterized in that: the turning module (51) comprises a feed amount adjusting structure (511) which is detachably arranged at the top end of the supporting table (4), and a tool rest table (512) is rotatably arranged at the top end of the feed amount adjusting structure (511).

7. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 6, characterized in that: the feed amount adjusting structure (511) comprises a first fixing plate (5111), a first adjusting plate (5112) and a third screw rod assembly (5113), wherein the first fixing plate (5111) is in threaded connection with the supporting table (4), and the third screw rod assembly (5113) controls the first adjusting plate (5112) to slide back and forth at the top end of the first fixing plate (5111).

8. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 1, characterized in that: the grinding module (52) comprises a position adjusting structure (521) which is detachably arranged at the top end of a supporting table (4), a supporting frame (522) is detachably arranged at the top end of the position adjusting structure (521), a limiting plate (523) is fixedly arranged at the top end of the supporting frame (522), a supporting column (524) is fixedly arranged on the side part of the limiting plate (523), a motor (525) is fixedly arranged on the other side of the limiting plate (523), a grinding tool (526) is detachably arranged at the output end of the motor (525), and a baffle (527) corresponding to the position of the grinding tool (526) is fixedly arranged on the supporting frame (522) at the side part of the limiting plate (523).

9. The large ac motor slip ring, dc motor commutator field belt electric vehicle grinding device of claim 8, characterized in that: the position adjusting structure (521) comprises a second fixed plate (5211) which is in threaded arrangement with the supporting table (4), a second adjusting plate (5212) is arranged on the middle part of the top end of the second fixed plate (5211) in a back-and-forth sliding manner, a fourth screw rod assembly (5213) which controls the second fixed plate (5211) to slide back-and-forth is arranged in the second adjusting plate (5212), a third adjusting plate (5214) is arranged on the top end of the second adjusting plate (5212) in a left-and-right sliding manner, a fifth screw rod assembly (5215) which controls the third adjusting plate (5214) to slide back-and-forth on the second adjusting plate (5212) is arranged in the third adjusting plate (5214), and a movable table (5216) which can slide left-and-right is arranged on the top end of the third adjusting plate (5214).