CN211981688U

CN211981688U - Permanent magnet submersible motor assembly platform

Info

Publication number: CN211981688U
Application number: CN202020848880.9U
Authority: CN
Inventors: 谢青松
Original assignee: HUBEI SEEPOMOTOR SCIENCE AND Tech CO Ltd
Current assignee: HUBEI SEEPOMOTOR SCIENCE AND Tech CO Ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-11-20
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a latent oily motor assembly platform of permanent magnetism, include supporting platform, help smooth structure and pull drive assembly, supporting platform is to extending along preceding back for settle and treat the assembly stator, help smooth structure include along around to movable mounting in supporting platform's slider structure, slider structure's upper end forms the holding surface, is used for the support to treat the assembly rotor, it includes along the front and back haulage rope to the activity to pull drive assembly, the haulage rope is used for passing treat the inner chamber of assembly stator to pull and treat assembly rotor movable mounting to treat in the inner chamber of commentaries on classics assembly stator. The slider structure is under the effect of pulling force, follows the rotor synchronous slip who treats the assembly to guarantee to treat that the assembly rotor is placed indeformable, in the installation with no friction takes place between the slider structure, so set up, make the steady inner chamber of packing into to treating the assembly stator of treating the assembly rotor, the atress is even, and the direction is accurate.

Description

Permanent magnet submersible motor assembly platform

Technical Field

The utility model relates to a permanent-magnet machine technical field, in particular to latent oily motor assembly platform of permanent magnetism.

Background

The permanent magnet submersible motor is a type of permanent magnet motor, and is a low-speed permanent magnet synchronous motor which works underground and is coaxially connected with a screw pump through a protector and a connector to directly drive the screw pump. The assembly process of the stator and the rotor of the permanent magnet submersible motor in the current market refers to the assembly process of the stator and the rotor of the traditional induction asynchronous submersible motor, but the permanent magnet motor is different from the traditional induction asynchronous submersible motor in that the motor rotor is a permanent magnet, the rotor has strong electromagnetic attraction, the speed is slow by adopting the traditional mode, the assembly efficiency is low, the labor amount of personnel is large, the assembly quality has high requirement on the skill of the personnel, the alignment of the stator and the rotor is completely mastered by the level of the personnel, the quality influence of human factors is large, and the quality consistency is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a latent oily motor assembly platform of permanent magnetism aims at solving and improves motor stator and rotor assembly precision, efficiency and reduction personnel work load.

In order to achieve the above object, the utility model provides a latent oily motor assembly platform of permanent magnetism, include:

the supporting platform extends in the front-back direction and is used for placing a stator to be assembled;

the sliding assisting structure comprises a sliding block structure movably arranged on the supporting platform along the front-back direction, and the upper end of the sliding block structure forms a supporting surface for supporting the rotor to be assembled; and the number of the first and second groups,

and the traction driving assembly comprises a traction rope which moves in the front-back direction, and the traction rope is used for penetrating through the inner cavity of the stator to be assembled and dragging the rotor to be assembled to be movably installed in the inner cavity of the stator to be rotationally assembled.

Optionally, a linear guide rail extending in the front-back direction is arranged on the supporting platform;

the sliding block structure comprises a sliding block which is slidably arranged on the linear guide rail, and the upper end surface of the sliding block forms the supporting surface.

Optionally, the permanent magnet submersible motor assembly platform further comprises a positioning and fixing structure arranged on the supporting platform, the positioning and fixing structure comprises a plurality of supporting blocks fixedly arranged on the supporting platform, far away from the side end of the sliding block structure, and arranged at intervals along the front direction and the back direction, and the supporting blocks are used for jointly supporting the stator to be assembled.

Optionally, the positioning and fixing structure further includes a plurality of pressing blocks, the plurality of pressing blocks correspond to the plurality of supporting blocks one to one, and the plurality of pressing blocks are correspondingly arranged above the plurality of supporting blocks and used for pressing the stator to be assembled.

Optionally, the sliding block structure includes a sliding block slidably mounted to the supporting platform along the front-back direction, and a movable block slidably mounted to the upper end of the sliding block along the front-back direction, and the upper end face of the movable block forms the supporting surface.

Optionally, the plurality of sliding block structures are arranged at intervals in the front-back direction.

Optionally, the traction drive assembly further comprises a winch;

the traction rope is wound on a roller of the winch.

Optionally, the permanent magnet submersible motor assembly platform further comprises a guide block, wherein the guide block is used for being in threaded connection with the side end, facing the stator, of the rotor to be assembled;

the traction rope is used for penetrating through an inner cavity of the stator to be matched and fixedly connected with the guide block.

Optionally, the rear end of the supporting platform is used for placing a stator to be assembled;

the permanent magnet submersible motor assembly platform further comprises a stop block fixedly installed on the supporting platform, and the stop block is used for being arranged at the rear end of the stator to be assembled so as to fix the stator to be assembled.

the assembly platform of the permanent magnet submersible motor further comprises an assembly positioning plate movably mounted to the supporting platform in the front-back direction, and the assembly positioning plate is located at the rear end of the supporting platform and used for limiting the assembly position of the rotor to be assembled relative to the stator to be assembled.

The utility model provides an among the technical scheme, the stator fixed mounting who will treat the assembly extremely on the supporting platform, through the pulling the haulage rope drives the rotor orientation that treats the assembly and treats the stator direction removal of assembly, slider structure follows the rotor synchronous slip that treats the assembly under the effect of pulling force to the assurance is treated the assembly rotor and is placed indeformable, in the installation with friction does not take place between the slider structure, so sets up for treat the steady inner chamber of packing into to treating the assembly stator of assembly rotor, the atress is even, and the direction is accurate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a permanent magnet submersible motor assembly platform provided by the present invention;

FIG. 2 is an enlarged schematic view of detail A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

fig. 4 is an enlarged schematic view of a portion C in fig. 1.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

With the rapid development of rare earth permanent magnet materials at home and abroad, the technical maturity of a permanent magnet motor is promoted, and the permanent magnet motor can be rapidly popularized and applied in various industries, can realize high performance which is difficult to achieve by a common electromagnetic motor, has become the mainstream trend of motor research and motor product development, and is widely applied to various fields of aviation, aerospace, equipment manufacturing, petrochemical industry and daily life.

The external dimension and the internal structure of the submersible motor are influenced by the working environment of the submersible motor and are of a slender structure, the stator of the permanent magnet submersible motor is of a slender cylindrical structure, a silicon steel sheet of the stator and a silicon copper sheet adopted by a magnetism isolating section are laminated into a shell according to a corresponding rule, and the shell plays a role in supporting a stator iron core; the rotor is divided into a plurality of sections. The stator silicon-copper segment is provided with a rotor section, the stator silicon-copper segment is provided with a centering bearing, the rotor section is connected with the centering bearing in series through a slender rotating shaft, and the centering bearing at the positions of the stator and the rotor sections avoids the occurrence of the condition of uneven air gaps caused by the slender motor.

This type of permanent magnet machine is mainly assembled to guarantee the following points: the assembly process ensures that the interior of the motor stator is clean and free of impurities, particularly scrap iron; the stator and the rotor are prevented from deforming due to the action of external force as much as possible in the assembling process; the righting bearing is damaged in the assembling process; the rotor magnetic steel cannot cause the defects of crushing and the like due to the bending deformation of the rotating shaft.

The assembly process of the stator and the rotor of the permanent magnet submersible motor in the current market refers to the assembly process of the stator and the rotor of the traditional induction type asynchronous submersible motor, and is as follows: pass motor stator with elongated lead screw, connect on motor rotor axle head screw, draw in the stator inside with the rotor through the rotatory lead screw of hand mode, because asynchronous machine rotor does not have the magnetism nature, generally place on equilateral angle steel, adopt angle steel V type both sides location, the stator adopts on the fixed movable support of 2 fulcrums location, during the assembly, through moving movable support lift adjustment stator and rotor core concentricity, the adjustment is accomplished, pass stator core with the lead screw and be connected with the rotor axle head, the screw rod adopts hand mode to draw in the stator core inside with the rotor. But permanent-magnet machine is different from asynchronous oily motor of diving of traditional induction type difference lies in that the motor rotor is the permanent magnet, and the rotor has very strong electromagnetic attraction, adopts traditional mode then easily to form following problem: the stator and the rotor are positioned and separated, the reference is not uniform, the concentricity tolerance of the stator and the rotor is large, and the centering is automatically performed by forcibly pulling the rotor during assembly, so that the centering bearing is damaged or scratched; the motor is forcibly pulled in, cutting scrap iron appears in the stator, and the cutting scrap iron cannot be cleaned out, so that the motor running bearing is abraded and loses efficacy; the screw rod is adopted to pull in by hand, the speed is low, the assembly efficiency is low, and the labor amount of personnel is large; the suction force is generated on the V-shaped iron in the dragging process of the rotor, so that the surface of a centering bearing on the rotor is easily scratched and a main shaft is easily deformed; the lead screw is at rotatory pulling force process, and the screw tooth wearing and tearing are fast, and the lead screw life cycle is short, and the wearing and tearing produce iron fillings and probably get into the stator, cause the inside unclean of stator, influence the motor operation. The assembly quality has high skill requirements on staffs, the alignment of the stator and the rotor is completely mastered by the level of the staffs, human factors have great influence on the quality, and the quality consistency is poor.

The utility model provides a latent oily motor mounting platform of permanent magnetism, figure 1 to figure 4 do the utility model provides a latent oily motor mounting platform's of permanent magnetism embodiment.

Referring to fig. 1 to 4, the permanent magnet submersible motor assembly platform 100 includes a support platform 1, a sliding assisting structure and a traction driving assembly, the support platform 1 extends in a front-back direction and is used for placing a stator to be assembled, the sliding assisting structure includes a slider structure movably mounted on the support platform 1 in the front-back direction, a support surface is formed at the upper end of the slider structure and is used for supporting a rotor to be assembled, the traction driving assembly includes a traction rope 31 movable in the front-back direction, and the traction rope 31 is used for penetrating through an inner cavity of the stator to be assembled and for pulling the rotor to be assembled to be movably mounted in the inner cavity of the stator to be assembled.

The utility model provides an among the technical scheme, the stator fixed mounting who will treat the assembly extremely on supporting platform 1, through the pulling haulage rope 31, the drive treats that the rotor orientation of assembly treats the stator direction removal of assembly, slider structure is under the effect of pulling force, follows the rotor synchronous slip who treats the assembly to the assurance is treated the assembly rotor and is placed indeformable, in the installation with do not take place the friction between the slider structure, so sets up, makes and treats the steady inner chamber of packing into to treating the assembly stator of assembly rotor, and the atress is even, and the direction is accurate.

Further, in order to realize the sliding state of the slider structure, a linear guide rail 11 extending in the front-back direction is arranged on the supporting platform 1; the sliding block structure comprises a sliding block 211 which is slidably mounted on the linear guide rail 11, and the upper end surface of the sliding block 211 forms the supporting surface. Meanwhile, the stator to be assembled is correspondingly fixed on the other side of the linear slide rail, the linear guide rail 11 enables the stator to be assembled and the rotor to be assembled to have a unified positioning standard, the requirement of linearity tolerance during assembly is guaranteed, the rotor to be assembled in the assembly process is accurate in guiding and uniform in stress.

Specifically, the utility model discloses do not restrict and wait to assemble the stator and be in fixed mode on the supporting platform 1, in an embodiment, please refer to fig. 2, permanent magnetism submersible motor assembly platform 100 is still including locating location fixed knot on the supporting platform 1 constructs, location fixed knot constructs including fixed mounting in supporting platform 1 keeps away from slider structure's side, and along a plurality of supporting shoes 12 that the front and back set up to the interval, it is a plurality of the supporting shoe 12 is used for supporting jointly and waits to assemble the stator. The stator and the rotor of the permanent magnet submersible motor are longer than those of other motors, and the stator and the rotor are matched with each other through the supporting blocks 12, so that the stator to be assembled is guaranteed to be stably installed, and the assembling effect is guaranteed.

Specifically, in this embodiment, the supporting block 12 is a V-shaped block, and the V-shaped block is widely applied in the installation and positioning structure, and has a good positioning effect.

The V-shaped block can only limit the radial displacement of the stator to be assembled, but there is still a possibility of movement in the vertical direction, for this reason, in this embodiment, the positioning and fixing structure further includes a plurality of pressing blocks 13, the plurality of pressing blocks 13 correspond to the plurality of supporting blocks 12 one to one, and the plurality of pressing blocks 13 are correspondingly disposed above the plurality of supporting blocks 12, and are used for compressing the stator to be assembled. By the arrangement, the stator to be assembled is positioned in an all-directional mode, and the assembling effect is guaranteed.

Specifically, the in-process of assembly, the slider structure slides along with waiting to assemble the rotor synchronous, works as the slider structure moves to and when waiting to assemble the stator and offset, the slider structure can't continue to move, at this moment, wait to assemble the rotor with will take place the friction between the holding surface, cause the rotor damage, in view of this, please refer to fig. 3, the utility model discloses in, the slider structure include along the fore-and-aft sliding installation extremely supporting platform 1's slider 211 and along the fore-and-aft sliding installation in movable block 212 of slider 211 upper end, the up end of movable block 212 forms the holding surface. The movable block 212 is arranged between the rotor to be assembled and the sliding block 211, the friction coefficient between the rotor to be assembled and the movable block 212, the friction coefficient between the sliding block 211 and the movable block 212, and the friction coefficient between the sliding block 211 and the supporting platform 1 are set to gradually decrease, under the action of a pulling force, the pulling rope 31 drives the rotor to be assembled, the sliding block 211, and the movable block 212 to synchronously slide, when the sliding block 211 moves to abut against the side end of the stator to be assembled, the sliding block 211 stops sliding, the rotor to be assembled can still drive the movable block 212 to slide, as the contact surface between the movable block 212 and the sliding block 211 gradually decreases, the movable block 212 falls off from the sliding block 211 under the action of gravity, at the moment, a certain gap exists between the rotor to be assembled and the sliding block 211, so as to protect the rotor to be assembled from being scratched and abraded in the continuous moving process, the assembly quality is improved.

In this embodiment, the slider 211 is a linear bearing, which satisfies the requirement and is easy to purchase.

It should be noted that, in order to provide a dropping space for the movable block 212, a limit block is arranged on the support platform 1 corresponding to the slider 211, the limit block is located between the slider 211 and the stator to be assembled, and a certain distance exists between the limit block and the stator to be assembled, when the slider 211 moves to abut against the limit block, the slider 211 stops rotating, and the movable block 212 drops between the limit block and the stator to be assembled, so as to prevent the movable block 212 from failing to drop or being dropped and stuck in the assembling process.

Stator and rotor that permanent magnetism submersible motor's stator and rotor compare in other motors are all longer, in order to guarantee the supporting effect of the smooth structure of helping treats the assembly rotor, in this embodiment, the slider structure sets up a plurality ofly, and sets up along the forward and backward interval. Specifically, a reasonable number of the slider structures can be set according to the size of an actual product.

Further, in this embodiment, the traction drive assembly further includes a winch 32; the hauling rope 31 is wound on the drum of the winch 32. Because the smoothness requirement is lower for the fitting surface between stator and the rotor, can adopt hand formula hoist engine to replace traditional lead screw to pull because slight jamming appears in the frictional force great during the assembly, and the pulling of hand formula hoist engine is leaned on manpower control, and the discovery that can be timely when the jamming of assembly appears is convenient for in time inspect jamming reason, prevents to assemble the damage, has better protectiveness to stator and rotor.

In order to facilitate installation and guidance, please refer to fig. 2 again, the permanent magnet submersible motor assembly platform 100 further includes a guide block 4, the guide block 4 is used for being connected to a side end of the rotor to be assembled, which faces the stator, through a thread, and the traction rope 31 is used for passing through an inner cavity of the stator to be assembled and fixedly connecting with the guide block 4. The guide block 4 is used for installing and guiding the to-be-assembled rotor, can shape local burrs and salient points in the to-be-assembled stator, adsorbs scrap iron in the to-be-assembled stator, and ensures that the stator and the rotor are completely assembled without impurities. During assembly, the rotor to be assembled is indirectly pulled by pulling the guide block 4, and after the rotor to be assembled is in place, the guide block 4 is detached from the rotor to be assembled, so that the rotor to be assembled is assembled.

In addition, in order to prevent the stator to be assembled from tilting in the assembling process, referring to fig. 4, the rear end of the supporting platform 1 is used for placing the stator to be assembled; the permanent magnet submersible motor assembly platform 100 further comprises a stop block 5 fixedly installed on the supporting platform 1, and the stop block 5 is used for being arranged at the rear end of the stator to be assembled so as to fix the stator to be assembled. The rear end of the stator to be assembled is prevented from tilting due to the assembly tension, and the assembly effect is prevented from being influenced.

The stator and the rotor both have a requirement of an assembly size according to an actual design, in this embodiment, the rear end of the supporting platform 1 is used for placing the stator to be assembled, the permanent magnet submersible motor assembly platform 100 further includes an assembly positioning plate movably mounted to the supporting platform 1 in the front-back direction, and the assembly positioning plate is located at the rear end of the supporting platform 1 and used for limiting the assembly position of the rotor to be assembled relative to the stator to be assembled. And when the rotor spindle to be assembled reaches the position of the assembling positioning plate, stopping assembling to ensure that the assembled stator and the assembled rotor core are aligned.

Because the rotor of the permanent magnet submersible motor is a permanent magnet, the supporting platform 1 is made of non-metal materials, so that the deformation of a main shaft or the eccentric assembly caused by the single-bias magnetic force of the rotor is avoided in the assembly process. In particular, the supporting platform 1 in this embodiment is made of marble, the marble platform can meet the requirement of nonmagnetic operation, assembly is not affected by the suction force of the rotor on the platform, and the deformation of the marble platform is small, the requirement of flatness can be ensured,

the above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a latent oily motor assembly platform of permanent magnetism which characterized in that includes:

2. The permanent magnet submersible motor assembly platform of claim 1 wherein the support platform is provided with linear guide rails extending in the fore-and-aft direction;

3. The assembly platform of claim 1, further comprising a positioning and fixing structure disposed on the support platform, wherein the positioning and fixing structure comprises a plurality of support blocks fixedly mounted on a side end of the support platform away from the slider structure and spaced in a front-back direction, and the support blocks are used to jointly support the stator to be assembled.

4. The assembly platform of the permanent magnet submersible motor according to claim 3, wherein the positioning and fixing structure further comprises a plurality of pressing blocks, the plurality of pressing blocks correspond to the plurality of support blocks one to one, and the plurality of pressing blocks are correspondingly arranged above the plurality of support blocks and used for pressing the stator to be assembled.

5. The permanent magnet submersible motor mounting platform of claim 1 where the slide structure comprises a slide slidably mounted to the support platform in a fore-and-aft direction and a movable block slidably mounted to an upper end of the slide in the fore-and-aft direction, an upper end of the movable block forming the support surface.

6. The permanent magnet submersible motor assembly platform of claim 1 where the plurality of slider structures are spaced apart in the fore-and-aft direction.

7. The permanent magnet submersible motor assembly platform of claim 1 where the traction drive assembly further comprises a hoist;

the traction rope is wound on a roller of the winch.

8. The permanent magnet submersible motor assembly platform of claim 1 further comprising a guide block for threaded connection to the side end of the rotor to be assembled facing the stator;

9. The permanent magnet submersible motor assembly platform of claim 1 where the back end of the support platform is used to place the stator to be assembled;

10. The permanent magnet submersible motor assembly platform of claim 1 where the back end of the support platform is used to place the stator to be assembled;