CN111082612A

CN111082612A - Motor rotor maintenance auxiliary device

Info

Publication number: CN111082612A
Application number: CN201911420119.3A
Authority: CN
Inventors: 彭振宇
Original assignee: Guangdong Datang International Leizhou Power Generation Co Ltd
Current assignee: Guangdong Datang International Leizhou Power Generation Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-28

Abstract

The invention relates to the technical field of motor maintenance, in particular to a motor rotor maintenance auxiliary device, which comprises: the base, set up in the support frame of base, the support frame sets up in supporting mechanism, supporting mechanism is including being used for fixed rotor so that rotor keep balance's supporting part, and the support frame is provided with the adjustment mechanism who is used for adjusting supporting part height. When the rotor is disassembled, after a part of the rotor is propped out by the dummy shaft, one end of the rotor can be fixed by the supporting mechanism, and then the height of the supporting mechanism is adjusted by the adjusting mechanism, so that the rotor is always kept in a horizontal state, the rotor is conveniently taken out of the stator, and the rotor is not easy to be inclined and blocked; when the rotor is installed, the rotor can be kept balanced through the invention, so that the disassembly and the installation are not laborious, and the speed of disassembling and installing the rotor is greatly improved.

Description

Motor rotor maintenance auxiliary device

Technical Field

The invention relates to the technical field of motor maintenance, in particular to a motor rotor maintenance auxiliary device.

Background

The motor for generating electricity mainly comprises a rotor and a stator, wherein two ends of the rotor are respectively connected with the stator through bearings, inner end covers and outer end covers are respectively arranged on the inner side and the outer side of each bearing, and the inner end covers are connected with the outer end covers through bolts. The motor needs to overhaul the rotor and the stator after using for a period of time, but, because the volume of general motor is great, the quality of rotor is heavier, and the clearance between stator and the rotor is less, when dismantling and installing the rotor, the easy unbalance of rotor takes place the dead condition of slope card, causes to dismantle and to install the rotor and expend power and speed slower.

Disclosure of Invention

The technical problem to be solved by the embodiment of the invention is that when the rotor is disassembled and assembled, the rotor is easy to lose balance and is inclined and stuck, so that the disassembling and assembling of the rotor is labor-consuming and has slower speed.

In order to solve the above technical problem, an embodiment of the present invention provides an auxiliary device for maintaining a motor rotor, which adopts the following technical solutions: the method comprises the following steps:

a base provided with a support frame;

the supporting mechanism comprises a flexible supporting belt, two ends of the supporting belt are arranged on the supporting frame, and the middle of the supporting belt is drooped down to form a supporting part for fixing the rotor so as to keep the rotor balanced;

and the adjusting mechanism is arranged on the support frame and is used for adjusting the height of the supporting part.

Further, the supporting mechanism comprises a supporting belt, the two ends of the supporting belt are arranged on the supporting frame, the supporting belt is integrally U-shaped, and the U-shaped bottom of the supporting belt is the supporting part.

Furthermore, the adjusting mechanism comprises a winch rotatably supported on the support frame and a locking assembly for controlling the winch to rotate and lock, one end of the support belt is fixed on the winch, the winch is used for retracting the support belt, and the height of the support part can be adjusted by rotating the winch.

Furthermore, the locking assembly comprises a rotating wheel fixedly arranged on the winch and a locking rod arranged on the support frame in a sliding mode, the outer side circumference of the rotating wheel is arranged on the locking teeth, and the end portion of the locking rod is in clamping fit with the locking teeth.

Furthermore, the support frame is provided with an installation hole for the support belt to pass through, a strip-shaped sliding hole is arranged on one side of the support frame, which is positioned in the installation hole, the sliding hole comprises an upper end and a lower end, and the upper end to the lower end of the sliding hole are arranged towards the direction close to the installation hole; the adjusting mechanism comprises a pressing roller which is arranged in the sliding hole in a sliding mode, the pressing roller can abut against the supporting belt tightly when the pressing roller abuts against the lower end of the sliding hole, and the supporting belt is clamped in the mounting hole.

Further, the support frame is articulated set up in the base, be provided with the first holding tank that is used for holding the support frame, be provided with the supplementary mounting that is used for fixed support frame on the support frame.

Furthermore, the auxiliary fixing piece comprises an inclined supporting rod hinged to the supporting frame, a clamping groove matched with the free end of the inclined supporting rod in a clamping mode is formed in the bottom of the first accommodating groove, and when the free end of the inclined supporting rod is clamped in the clamping groove, the supporting frame is in a vertical state; the support frame is provided with a second accommodating groove used for accommodating the inclined supporting rod.

Further, the bottom of base is provided with a plurality of universal wheels that are used for moving the base.

Further, the bottom of base articulates there is the wheel pole, the universal wheel install in the free end of wheel pole, the base is provided with and is used for holding the third holding tank of wheel pole and universal wheel.

Further, the base is detachably connected with an auxiliary support.

Compared with the prior art, the embodiment of the invention mainly has the following beneficial effects: when the rotor is disassembled, after a part of the rotor is propped out by the dummy shaft, one end of the rotor can be fixed by the supporting mechanism, and then the height of the supporting mechanism is adjusted by the adjusting mechanism, so that the rotor is always kept in a horizontal state, the rotor is conveniently taken out of the stator, and the rotor is not easy to be inclined and blocked; when the rotor is installed, the rotor can be kept balanced through the invention, so that the disassembly and the installation are not laborious, and the speed of disassembling and installing the rotor is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an auxiliary device for repairing a rotor of an electric motor according to the present invention;

FIG. 2 is a schematic view of the internal structure of the cross beam of the maintenance assisting apparatus for the rotor of the motor according to the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a schematic view of the maintenance assisting device for the rotor of the motor according to the present invention in a folded state.

Description of reference numerals: 10. a base; 11. a first accommodating groove; 12. a third accommodating groove; 131. a first wheel lever; 132. a first universal wheel; 133. a second wheel lever; 134. a second universal wheel; 14. lifting a handle; 20. A support frame; 21. a support bar; 211. a second accommodating groove; 22. a cross beam; 221. mounting holes; 222. a slide hole; 23. a diagonal brace; 30. a support band; 31. a support portion; 40. an auxiliary support; 41. a third universal wheel; 42. a chain; 50. pressing the roller; 51. a bump; 60. a winch; 61. a rotating wheel; 611. locking teeth; 62. A lock lever; 63. a sliding sleeve; 64. a connecting rod; 65. a fixed block; 66. a spring; 67. a crank handle.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the description and claims of this invention and the description of the above figures, are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and in the claims, or in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1, an auxiliary device for repairing a rotor of an electric machine includes: the rotor balancing device comprises a base 10 and a support frame 20 arranged on the base 10, wherein the support frame 20 is arranged on a support mechanism (not marked in the figure), the support mechanism comprises a support part 31 used for fixing a rotor so as to keep the rotor balanced, and the support frame 20 is provided with an adjusting mechanism (not marked in the figure) used for adjusting the height of the support part 31. When the rotor is disassembled, after a part of the rotor is propped out by the dummy shaft, one end of the rotor can be fixed by the supporting mechanism, and then the height of the supporting mechanism is adjusted by the adjusting mechanism, so that the rotor is always kept in a horizontal state, the rotor is conveniently taken out of the stator, and the rotor is not easy to be inclined and blocked; when the rotor is installed, the rotor can be kept balanced through the invention, so that the disassembly and the installation are not laborious, and the speed of disassembling and installing the rotor is greatly improved.

As shown in fig. 1 and 4, the base 10 has a U-shaped cross section, so that the weight of the base 10 can be reduced, and the base 10 can be conveniently carried with less effort. The both sides of base 10 are provided with the first holding tank 11 of two bars respectively, and support frame 20 sets up in the blind end of U style of calligraphy base 10, support frame 20 includes two bracing pieces 21 and crossbeam 22, and the bottom of two bracing pieces 21 articulates respectively in first holding tank 11, rotates bracing piece 21 and can place bracing piece 21 in first holding tank 11. Jacks are arranged at two ends of the cross beam 22 and are respectively matched with the free ends of the support rods 21 in an inserted manner, and the support mechanism and the adjusting mechanism are arranged on the cross beam 22.

During the vertical state of support frame 20, the tip lateral wall of the first holding tank 11 of one side butt of bracing piece 21, more stable when making the vertical state of support frame 20, difficult emergence is emptyd, be provided with the auxiliary fixtures who is used for fixed support frame 20 on the support frame 20. Specifically, the auxiliary fixing member includes a diagonal brace 23 hinged to the support rod 21, a slot (not shown) engaged with a free end of the diagonal brace 23 is disposed at a bottom of the first receiving slot 11, and when the free end of the diagonal brace 23 is engaged with the slot, the support frame 20 is in a vertical state. The support rod 21 is provided with a second receiving groove 211 for receiving the diagonal brace 23, and the diagonal brace 23 can be placed in the second receiving groove 211 by rotating the diagonal brace 23.

When the supporting frame 20 is folded, the cross beam 22 is firstly taken down from the supporting rod 21, then the free end of the inclined strut 23 is taken out from the clamping groove, the inclined strut 23 is folded into the second accommodating groove 211, and then the supporting rod 21 is folded and placed into the first accommodating groove 11 by rotating the supporting rod 21.

As shown in fig. 1 and 4, two third receiving grooves 12 are respectively disposed at the bottom of the base 10 and below the first receiving groove 11, and the third receiving grooves 12 are disposed on two sides of the base 10 in the length direction. One end of the third accommodating groove 12 close to the supporting frame 20 is respectively hinged with a first wheel rod 131, and a first universal wheel 132 is mounted at the free end of the first wheel rod 131; one end of the third accommodating groove 12 far away from the support frame 20 is respectively provided with a second wheel rod 133 in a hinged manner, a second universal wheel 134 is installed at the free end of the second wheel rod 133, and the first universal wheel 132 and the second universal wheel 134 can be respectively placed in the third accommodating groove 12 by folding the first wheel rod 131 and the second wheel rod 133.

Preferably, in order to improve the stability of the base 10 and avoid the support frame 20 from collapsing due to inclination when the support mechanism supports the rotor, the length of the second wheel rod 133 is greater than the length of the first wheel rod 131, where the length of the second wheel rod 133 is three times the length of the first wheel rod 131. And, first wheel pole 131 and second wheel pole 133 set up completely, and the wheel pole upwards crooked setting when open mode, compare in the straight-bar, and crooked wheel pole can reduce the focus of base 10, makes base 10 more stable. The arrangement of the first accommodating groove 11, the second accommodating groove 211 and the third accommodating groove 12 can reduce the space of the tool after folding, and the tool is convenient to carry.

In order to grip the base 10 when the method is carried, the side walls of the base 10 are provided with pull handles 14, and the pull handles 14 are positioned on the side walls of the closed end of the base 10.

As shown in fig. 1 and 2, the supporting mechanism includes a supporting band 30, two ends of the supporting band 30 are disposed on the supporting frame 20, the supporting band 30 is U-shaped as a whole, and the supporting portion 31 is at the bottom of the U-shape of the supporting band 30. Specifically, the support band 30 is soft in texture, and the end of the rotor can be sufficiently attached to the support portion 31 when placed on the support portion 31 of the support band 30, so that the rotor is not likely to roll, and the support band 30 is more stable in supporting the rotor than a hard support.

As shown in fig. 1 to 3, the mechanism comprises a slow adjustment assembly and a fast adjustment assembly, and both ends of the support band 30 are connected to the slow adjustment assembly (not shown) and the fast adjustment assembly (not shown), respectively.

In this embodiment, the slow adjusting structure includes a winch 60 rotatably supported on the cross member 22, one end of the support belt 30 is fixed to the winch 60, and the winch 60 is used for winding the support belt 30. Specifically, the cross beam 22 is hollow, the winch 60 is rotatably disposed in the cross beam 22, a through hole for the support belt 30 to pass through is clamped below the winch 60 of the cross beam 22, and the height of the support portion 31 can be adjusted by rotating the winch 60.

Preferably, in order to fix the winch 60, a locking assembly is further disposed on the cross beam 22, the locking assembly includes a rotating wheel 61 fixedly disposed on the winch 60 and a lock rod 62 slidably disposed therebetween, an outer circumference of the rotating wheel 61 is disposed on the lock tooth 611, and an end of the lock rod 62 is in snap fit with the lock tooth 611. Specifically, crossbeam 22 just is located one side of rotating wheel 61 and has set firmly sliding sleeve 63, locking lever 62 and sliding sleeve 63 sliding connection, locking lever 62 keeps away from the one end of rotating wheel 61 is connected with connecting rod 64, crossbeam 22 just is located one side that the sliding sleeve 63 kept away from rotating wheel 61 still is provided with fixed block 65, fixed block 65 be provided with connecting rod 64 sliding connection's spout, spring 66 has been cup jointed on connecting rod 64, when spring 66 was in natural state, locking lever 62's tip joint is in lock tooth 611.

In this embodiment, the rotating wheel 61 may be a ratchet wheel, the teeth around the ratchet wheel are locking teeth 611, the locking lever 62 is a pawl engaged with the ratchet wheel, the pawl is engaged with the ratchet wheel under the action of the spring 66, and has a non-return function, the ratchet wheel can only rotate in one direction, and when the supporting belt 30 fixes the rotor, the supporting belt 30 is not easily loosened. The ratchet may rotate in a clockwise direction as viewed in figure 3, and may be prevented from rotating in a counterclockwise direction by the pawl. When the ratchet wheel rotates clockwise, the support belt 30 is wound by the capstan 60; toggling the pawl disengages the pawl from the ratchet, rotating the ratchet counterclockwise and the capstan 60 releases the support band 30.

In order to rotate the ratchet wheel, a crank 67 is welded on the ratchet wheel.

As shown in fig. 1 and 2, the cross beam 22 is provided with a mounting hole 221 through which the other end of the support band 30 passes, the mounting hole 221 is vertically arranged, and the support band 30 passes through the bottom end of the mounting hole 221 and passes through the top end of the mounting hole 221. A strip-shaped sliding hole 222 is formed in one side of the mounting hole 221 of the cross beam 22, the sliding hole 222 penetrates through the front and rear side walls of the cross beam 22, the sliding hole 222 is integrally arc-shaped, the sliding hole 222 comprises an upper end and a lower end, and the upper end to the lower end of the sliding hole 222 are arranged in the direction close to the mounting hole 221. The quick adjusting assembly comprises a pressing roller 50 which is arranged in a sliding hole 222 in a sliding mode, the pressing roller 50 is a solid roller, two ends of the pressing roller 50 are provided with bumps 51 and protrude out of the sliding hole 222, and when the pressing roller 50 is slid to the lower end of the sliding hole 222, the pressing roller 50 can tightly abut against the supporting belt 30 to enable the supporting belt 30 to be clamped in the mounting hole 221. Specifically, in a natural state, the pressing roller 50 slides to the lower end of the sliding hole 222 under the action of gravity and tightly presses against the support belt 30, so as to prevent the support belt 30 from sliding; when the height of the supporting part 31 needs to be increased by winding, the supporting belt 30 on the outer side of the upper end of the mounting hole 221 can be directly pulled, the pressing roller 50 moves upwards and is far away from the supporting belt 30, and the supporting belt 30 can slide relative to the mounting hole 221; when the supporting band 30 needs to be released and the height of the supporting portion 31 is reduced, the protrusion 51 is pulled by hand, the pressing roller 50 slides upwards to make the pressing roller 50 far away from the supporting band 30, then the supporting portion 31 is pressed, and after the adjustment is completed, the pressing roller 50 slides to the lower end of the sliding hole 222 to tightly press the supporting band 30. It is very efficient to adjust the height of the support 31 with the quick adjustment assembly.

The both ends of supporting band 30 are connected through transferring the subassembly slowly and transferring the subassembly soon respectively, can highly carry out quick accurate regulation to supporting part 31 to make the rotor keep the level when loading and unloading rotor, avoid the rotor to take place the slope card dead, very big improvement the loading and unloading speed of rotor.

When the rotor is disassembled, one end of the rotor is fixed and supported by the support portion 31, after the rotor is taken out, the other end of the rotor cannot be supported, and the rotor is easy to incline, therefore, an auxiliary support 40 is further arranged on one side of the base 10 far away from the support frame 20, a third universal wheel 41 is arranged at the bottom of the auxiliary support 40, the auxiliary support 40 is connected with the base 10 through a chain 42, a hook (not shown in the figure) can be arranged on the base 10 and used for fixing the chain 42, and the auxiliary support 40 is also convenient to disassemble. The auxiliary support 40 can assist in keeping the rotor balanced, and also facilitate handling of the rotor.

The using method comprises the following steps:

when the rotor is disassembled:

firstly, ejecting a part of a rotor by using a dummy shaft;

secondly, adjusting the length of the support band 30 to make the height of the support part 31 lower than the rotor, pushing the base 10 to make the rotor pass through the support band 30;

third, the ratchet is rotated to adjust the support bands 30 such that the rotor is carried on the support bands 30;

fourthly, the dummy shaft is used to push the rotor until the rotor is separated from the stator, and at the same time, the auxiliary supporter 40 is placed on one side of the base 10, and after the rotor is separated from the stator, one end of the rotor, which is far away from the support bands 30, falls onto the auxiliary supporter 40.

Before the rotor is installed, one end of the rotor is placed on the supporting belt 30, the other end of the rotor is placed on the auxiliary support 40, and during installation:

firstly, the base 10 is moved to one side of the stator, and then one end of the rotor far away from the supporting band 30 is inserted into the stator;

secondly, when the rotor is inserted, if the inner end cover of the bearing is pushed to the release bearing by the rotor, the ratchet wheel heightening support part 31 can be rotated, so that the rotor is lifted to incline the stator, the inner end cover is hooked back to the original position by other tools and is fixed by bolts;

thirdly, after the inner end cover of the bearing is fixed, the ratchet wheel can be rotated or the pressing roller 50 can be pulled to adjust the height of the supporting part 31, so that the rotor is kept horizontal;

fourthly, inserting the rotor into the stator to complete the installation.

In summary, the following steps:

the motor rotor is balanced by adopting the supporting mechanism and the adjusting mechanism, so that the rotor is not easy to incline and block when the motor rotor is disassembled and assembled, the disassembling and the assembling are not easy, and the speed of disassembling and assembling the rotor is greatly improved; meanwhile, the folding type portable trolley can be folded, and is very convenient to move and carry.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention without limiting its scope. This invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents may be substituted for elements thereof. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.

Claims

1. The utility model provides a motor rotor maintenance auxiliary device which characterized in that: the method comprises the following steps:

a base provided with a support frame;

2. An electric machine rotor maintenance aid as claimed in claim 1, wherein: the adjusting mechanism comprises a winch which is rotatably supported on the supporting frame and a locking assembly which is used for controlling the rotation and locking of the winch, one end of the supporting belt is fixed on the winch, the winch is used for retracting the supporting belt, and the height of the supporting part can be adjusted by rotating the winch.

3. An electric machine rotor maintenance aid as claimed in claim 2, wherein: the locking assembly comprises a rotating wheel fixedly arranged on the winch and a locking rod arranged on the supporting frame in a sliding mode, the outer side circumference of the rotating wheel is arranged on the locking teeth, and the end portion of the locking rod is in clamping fit with the locking teeth.

4. An electric machine rotor maintenance aid as claimed in claim 1, wherein: the supporting frame is provided with a mounting hole for the supporting belt to pass through, a strip-shaped sliding hole is arranged on one side of the mounting hole of the supporting frame, the sliding hole comprises an upper end and a lower end, and the upper end to the lower end of the sliding hole are arranged towards the direction close to the mounting hole; the adjusting mechanism comprises a pressing roller which is arranged in the sliding hole in a sliding mode, the pressing roller can abut against the supporting belt tightly when the pressing roller abuts against the lower end of the sliding hole, and the supporting belt is clamped in the mounting hole.

5. An electric motor rotor maintenance assisting device according to any one of claims 1 to 4, characterized in that: the support frame is articulated set up in the base, be provided with the first holding tank that is used for holding the support frame, be provided with the auxiliary fixing spare that is used for fixed support frame on the support frame.

6. An electric machine rotor maintenance aid as claimed in claim 5, wherein: the auxiliary fixing piece comprises an inclined supporting rod hinged to the supporting frame, a clamping groove matched with the free end of the inclined supporting rod in a clamping mode is formed in the bottom of the first accommodating groove, and when the free end of the inclined supporting rod is clamped in the clamping groove, the supporting frame is in a vertical state; the support frame is provided with a second accommodating groove used for accommodating the inclined supporting rod.

7. An electric motor rotor maintenance assisting device according to any one of claims 1 to 4, characterized in that: the bottom of base is provided with and is used for removing a plurality of universal wheels of base.

8. An electric machine rotor maintenance aid as claimed in claim 7, wherein: the bottom of base articulates there is the wheel pole, the universal wheel install in the free end of wheel pole, the base is provided with and is used for holding the third holding tank of wheel pole and universal wheel.

9. An electric motor rotor maintenance assisting device according to any one of claims 1 to 4, characterized in that: the base is detachably connected with an auxiliary support.