Electric polishing device for stator of canned motor pump

Abstract

The utility model discloses an electric polishing device for a stator of a canned motor pump, and relates to the technical field of stator polishing. The electric pump stator polishing device comprises an electric pump stator, a supporting workbench, a placement limiting assembly and a polishing assembly, the placement limiting assembly is fixedly installed on the upper surface of the supporting workbench and comprises a driving wheel arranged in a rotating mode and a slidable limiting plate, and the polishing assembly is fixedly installed on the upper surface of the supporting workbench. The grinding assembly comprises a tail groove sliding table and an L-shaped transmission column, one end of the L-shaped transmission column is fixedly connected with a connecting bent plate in sliding fit with the upper surface of the tail groove sliding table, and a grinding wheel is fixedly installed on one side face of the connecting bent plate. The position of the electric pump stator is limited through horizontal sliding of the limiting plate, the L-shaped transmission column drives the grinding wheel to horizontally move to be close to the electric pump stator, the tail groove sliding table drives the grinding wheel to axially move to conduct overall grinding during grinding, automatic grinding is achieved, labor intensity is reduced, and meanwhile the grinding degree of all parts is kept consistent.

Description

Technical Field

[0001] The utility model belongs to the technical field of stator grinding, in particular to an electric grinding device for a canned motor pump stator. Background Art

[0002] The stator of an electric pump is the core component of the electric pump. Its function is to generate a magnetic field to drive the rotation of the motor. The stator is usually made of silicon steel sheets or Permalloy. During the manufacturing, transportation and use of the stator, some impurities may adhere to the surface. The rust, oxide scale, paint and other impurities on the surface of the stator can be removed by grinding the stator to make its surface smooth and flat, so as to improve the performance and service life of the electric pump.

[0003] For canned motor pumps, the outer circle of the stator needs to be polished after varnishing. The traditional polishing method is usually to manually use auxiliary tools to remove excess paint nodules through reciprocating linear motion. As the stability of the manually applied force changes, the paint nodules are scraped poorly after the stator is varnished, the residue is not completely removed, and the surface is uneven, which affects the coaxiality accuracy requirements after the casing is assembled. To this end, we provide a canned motor pump stator electric polishing device to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to provide an electric grinding device for a shielded electric pump stator, which solves the problem of time-consuming and labor-intensive manual grinding and uneven grinding degree in the above-mentioned background technology through the specific structural design of the electric pump stator, the supporting workbench, the placement of the limit assembly and the grinding assembly.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an electric grinding device for a shielded electric pump stator, comprising an electric pump stator, a supporting workbench, a placement limit assembly and a grinding assembly, wherein the placement limit assembly is fixedly mounted on the upper surface of the supporting workbench, the placement limit assembly comprises a plurality of rotatably arranged driving wheels and a slidable limit plate, the limit plate slides and is tightly attached to a side surface of the electric pump stator, and the peripheral side surface of the driving wheel is adapted to the electric pump stator; the grinding assembly is fixedly mounted on the upper surface of the supporting workbench, the grinding assembly comprises an axially movable tail slot slide and a horizontally reciprocating L-shaped transmission column, one end of the L-shaped transmission column is fixedly connected to a connecting bent plate that is slidably matched with the upper surface of the tail slot slide, a grinding wheel is fixedly mounted on one side of the connecting bent plate, the horizontal movement of the connecting bent plate drives the grinding wheel to move synchronously, and the grinding wheel contacts the electric pump stator for grinding.

[0007] The utility model is further configured as follows: the placement limit assembly also includes a placement table fixedly connected to the upper surface of the supporting workbench, the surface of the placement table is provided with a placement cavity, and the inner wall of the placement cavity is symmetrically provided with adjustment transmission grooves; the driving wheel is rotatably arranged inside an adjustment transmission groove through a first rotating shaft, and a plurality of driven wheels are rotatably arranged inside another adjustment transmission groove through a second rotating shaft, and the peripheral side surfaces of the driven wheels are adapted to the stator of the electric pump; a driving motor is fixedly installed on one side of the placement table, and the output shaft of the driving motor is fixedly connected to the first rotating shaft.

[0008] The utility model is further configured such that the limit plate is slidably arranged inside the placement cavity, and a return spring is fixedly connected between the limit plate and the inner wall of the placement table, a positioning groove is opened on one side of the placement table, and the positioning groove has an inclined slide groove at one end connected to a circular groove.

[0009] The utility model is further configured such that the grinding assembly also includes a linear guide rail fixedly connected to the upper surface of the supporting workbench and a motor slide rail fixedly connected to the upper surface of the supporting workbench, and the tail groove slide is arranged between the linear guide rail and the motor slide rail; a telescopic rod is fixedly connected to a side of the tail groove slide close to the placing table, and a positioning block is fixed at one end of the telescopic rod and slidably cooperates with the positioning groove, and an adjustment spring is fixedly connected between the positioning block and the tail groove slide.

[0010] The utility model is further configured as follows: a transmission cavity is opened inside the tail groove slide, a U-shaped support plate is fixedly connected inside the transmission cavity, a first eccentric gear is rotatably connected to one side of the U-shaped support plate, and a U-shaped transmission plate is slidably arranged inside the U-shaped support plate; a second eccentric gear meshing with the first eccentric gear is rotatably connected between the two opposite side surfaces of the U-shaped transmission plate, and a driving device fixedly connected to the eccentric part of the first eccentric gear is fixedly installed on the upper surface of the placement table.

[0011] The upper surface of the placement table is fixedly connected to a guide groove which is opened on the upper surface of the placement table and communicates with the transmission cavity. The L-shaped transmission column is slidably matched with the U-shaped support plate. The other end of the L-shaped transmission column passes through the U-shaped support plate and is fixedly connected to the U-shaped transmission plate.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model sets a placement limit assembly, pulls the limit plate, and the reset spring is compressed. After the electric pump stator is placed inside the placement cavity, the limit plate is released, and the position of the electric pump stator is limited by the limit plate, thereby preventing the electric pump stator from moving during grinding and affecting the grinding effect. At the same time, the driving wheel rotates during grinding to drive the electric pump stator to rotate, thereby making the electric pump stator contact with the grinding wheel at any position during grinding, so as to keep the grinding degree of each part uniform.

[0014] 2. The utility model sets a grinding component. During grinding, the tail groove slide drives the grinding wheel to move synchronously close to the electric pump stator, so that the grinding wheel fits the peripheral side of the electric pump stator. During the grinding process, the tail groove slide drives the grinding wheel to move axially, thereby realizing automatic grinding of the electric pump stator, reducing the labor intensity of grinding and improving grinding efficiency.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 The figure is a schematic diagram of the structure of an electric grinding device for a canned motor pump stator.

[0018] Figure 2 It is a schematic diagram of the practical structure of the coordination between the limit assembly and the stator of the electric pump in the utility model.

[0019] Figure 3 It is a schematic diagram of the longitudinal cross-sectional structure of the positioning assembly in the utility model.

[0020] Figure 4 It is a structural schematic diagram of the grinding component in the utility model.

[0021] Figure 5 for Figure 4 Schematic diagram of the locally enlarged structure of A in the middle.

[0022] Figure 6 It is a schematic diagram of the transverse cross-sectional structure of the grinding component part structure in the utility model.

[0023] Figure 7 for Figure 6 Schematic diagram of the partially enlarged structure of B.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1-electric pump stator, 2-support workbench, 3-placement limit assembly, 301-driving wheel, 302-limiting plate, 303-placing table, 304-adjusting transmission groove, 305-driven wheel, 306-driving motor, 307-reset spring, 308-positioning groove, 4-grinding assembly, 401-tail groove slide, 402-L-shaped transmission column, 403-connecting bent plate, 404-grinding wheel, 405-linear guide rail, 406-motor slide rail, 407-telescopic rod, 408-positioning groove, 409-adjusting spring, 410-U-shaped support plate, 411-first eccentric gear, 412-U-shaped transmission plate, 413-second eccentric gear, 414-guide slide. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0028] See also Figure 1-7 The utility model is an electric grinding device for a shielded electric pump stator, comprising an electric pump stator 1, a supporting workbench 2, a placement limit component 3 and a grinding component 4.

[0029] Specifically, the placement limit assembly 3 is fixedly installed on the upper surface of the support workbench 2, and the placement limit assembly 3 includes a plurality of rotatable driving wheels 301 and a slidable limit plate 302. The limit plate 302 slides and is tightly attached to one side of the electric pump stator 1, thereby limiting the position of the electric pump stator 1. The side surface of the driving wheel 301 is adapted to the electric pump stator 1. The rotation of the driving wheel 301 drives the electric pump stator 1 to rotate synchronously, which is convenient for grinding various parts of the electric pump stator 1. The grinding assembly 4 is fixedly installed on the upper surface of the support workbench 2, and the grinding assembly 4 includes an axially movable The tail slot slide 401 and an L-shaped transmission column 402 that can move horizontally back and forth, one end of the L-shaped transmission column 402 is fixedly connected to a connecting bent plate 403 that slides with the upper surface of the tail slot slide 401, and the connecting bent plate 403 is driven to move horizontally synchronously through the L-shaped transmission column 402, and a grinding wheel 404 is fixedly installed on one side of the connecting bent plate 403. The horizontal movement of the connecting bent plate 403 drives the grinding wheel 404 to move synchronously, and the connecting bent plate 403 drives the grinding wheel 404 to move horizontally toward the electric pump stator 1, and the grinding wheel 404 contacts the electric pump stator 1 for grinding.

[0030] The operation process of this embodiment is: manually push the limit plate 302 to move the electric pump stator 1 to place it inside the limit assembly 3. After releasing the limit plate 302, the limit plate 302 moves in the opposite direction to fit the side of the electric pump stator 1, thereby achieving position limitation of the electric pump stator 1.

[0031] The L-shaped transmission column 402 is then used to move horizontally to drive the connecting bent plate 403 to slide horizontally along the upper surface of the tail slot slide 401, and continuously approach the electric pump stator 1. When the grinding wheel 404 is in contact with the side surface of the electric pump stator 1, the grinding wheel 404 is started to grind the electric pump stator 1. At the same time, the driving wheel 301 rotates to drive the electric pump stator 1 to rotate while grinding, and the tail slot slide 401 drives the grinding wheel 404 to move along the axial direction of the electric pump stator 1, so as to realize the grinding of the entire electric pump stator 1, and the grinding degree of each part is uniform. Specific embodiment 2

[0033] See also Figure 1-7 On the basis of the specific embodiment 1, the placement limit component 3 also includes a placement table 303 fixedly connected to the upper surface of the supporting workbench 2, the placement table 303 is lower than the other side near the grinding component 4, a placement cavity is opened on the surface of the placement table 303, the electric pump stator 1 is placed inside the placement cavity, and the inner wall of the placement cavity is symmetrically opened with adjustment transmission grooves 304; the driving wheel 301 is rotatably arranged in an adjustment transmission groove 304 through a first rotating shaft, the driving wheel 301 rotates to drive the electric pump stator 1 to rotate, and a plurality of driven wheels 305 are rotated in another adjustment transmission groove 304 through a second rotating shaft, and the side surfaces of the driven wheels 305 are adapted to the electric pump stator 1. After the electric pump stator 1 is placed in the placement cavity, the side surfaces of the electric pump stator 1 are in contact with the driving wheel 301 and the side surfaces of the driven wheels 305, and the rotation of the electric pump stator 1 drives the driven wheels 305 to rotate, so as to keep the electric pump stator 1 rotating stably.

[0034] Specifically, a driving motor 306 is fixedly installed on one side of the placement table 303, and the output shaft of the driving motor 306 is fixedly connected to the first rotating shaft. The driving motor 306 is used to drive the first rotating shaft to rotate, so that the driving wheel 301 rotates synchronously, and the limit plate 302 is slidably arranged inside the placement cavity. A through hole that is compatible with the driving wheel 301 and the driven wheel 305 is opened on the surface of the limit plate 302, and a reset spring 307 is fixedly connected between the limit plate 302 and the inner wall of the placement table 303.

[0035] The operation process of this embodiment is: when it is necessary to limit the position of the electric pump stator 1, manually push the limit plate 302, the reset spring 307 is compressed, and the electric pump stator 1 is placed inside the placement cavity, and the limit plate 302 is released. Under the elastic recovery of the reset spring 307, the limit plate 302 slides in the opposite direction and fits against one side of the electric pump stator 1 to limit the position of the electric pump stator 1. After grinding, push the limit plate 302 to take out the electric pump stator 1.

[0036] During the grinding process, the driving motor 306 is started so that the first rotating shaft drives the driving wheel 301 to rotate, and the electric pump stator 1 is driven to rotate during the rotation of the driving wheel 301, and the driven wheel 305 rotates synchronously, so as to keep the electric pump stator 1 rotating stably during the grinding process, and all parts can contact with the grinding wheel 404. Specific embodiment three

[0038] See also Figure 1-7 On the basis of the specific embodiment 1 and the specific embodiment 2, a positioning groove 308 is opened on one side of the placement table 303, and the positioning groove 308 has an inclined slide groove at one end and a circular groove connected to each other.

[0039] Specifically, the grinding assembly 4 also includes a linear guide 405 fixedly connected to the upper surface of the supporting workbench 2 and a motor slide 406 fixedly connected to the upper surface of the supporting workbench 2. The motor slide 406 is an existing component, and the motor drives the screw to rotate to achieve horizontal movement. The tail groove slide 401 is arranged between the linear guide 405 and the motor slide 406. The tail groove slide 401 slides with the linear guide 405 and cooperates with the screw thread of the motor slide 406. The rotation of the screw drives the tail groove slide 401 to move in the axial direction; the tail groove slide 401 is fixedly connected to a telescopic rod 407 on one side close to the placement table 303, and a positioning block 408 is fixed at one end of the telescopic rod 407 and is slidably matched with the positioning groove 308. The positioning block 408 is adapted to the circular groove. When the positioning block 408 moves to the circular groove, the tail groove slide 401 stops moving to achieve positioning, and an adjustment spring 409 is fixedly connected between the positioning block 408 and the tail groove slide 401.

[0040] The operation process of this embodiment is as follows: before grinding, the initial position of the grinding assembly 4 needs to be positioned so that the grinding wheel 404 fits with the outermost peripheral side of the electric pump stator 1 at the beginning of grinding, and the motor slide rail 406 is started to drive the tail groove slide 401 to slide axially along the linear guide rail 405, and the positioning block 408 moves axially synchronously with the tail groove slide 401. When the positioning block 408 contacts the side of the placement table 303, the telescopic rod 407 and the adjusting spring 409 are compressed. When the positioning block 408 moves to the inclined slide groove of the positioning groove 308, the telescopic rod 407 and the adjusting spring 409 gradually restore their original lengths. When the positioning block 408 moves to the circular groove of the positioning groove 308, the telescopic rod 407 and the adjusting spring 409 completely restore their original lengths. Under the cooperation of the positioning block 408 and the circular groove, the movement of the tail groove slide 401 is limited. At the same time, the grinding wheel 404 and one end of the electric pump stator 1 are at the same axial phase position, thereby realizing the position positioning before grinding. Specific embodiment 4

[0042] See also Figure 1-7 On the basis of the first, second and third embodiments, a transmission cavity is opened inside the tail slot slide 401, and a U-shaped support plate 410 is fixedly connected inside the transmission cavity. A first eccentric gear 411 is rotatably connected to one side of the U-shaped support plate 410, and a U-shaped transmission plate 412 is slidably arranged inside the U-shaped support plate 410; a second eccentric gear 413 meshing with the first eccentric gear 411 is rotatably connected between the two opposite side surfaces of the U-shaped transmission plate 412, and the rotation of the first eccentric gear 411 drives the second eccentric gear 413 to rotate, and a driving device fixedly connected to the eccentric part of the first eccentric gear 411 is fixedly installed on the upper surface of the placement table 303.

[0043] Specifically, the upper surface of the placement table 303 is fixedly connected to a guide groove 414 which is opened on the upper surface of the placement table 303 and is connected to the transmission cavity. The L-shaped transmission column 402 can slide along the guide groove 414 to drive the connecting bent plate 403 to move synchronously. The L-shaped transmission column 402 is slidably matched with the U-shaped support plate 410. The other end of the L-shaped transmission column 402 passes through the U-shaped support plate 410 and is fixedly connected to the U-shaped transmission plate 412.

[0044] The operation process of this embodiment is as follows: after the positioning before grinding is completed, the driving device is started to drive the first eccentric gear 411 to rotate. Under the action of the meshing of the first eccentric gear 411 and the second eccentric gear 413, the first eccentric gear 411 rotates to drive the second eccentric gear 413 to rotate synchronously. During the rotation of the first eccentric gear 411, due to the eccentric setting, the first eccentric gear 411 rotates and simultaneously pushes the second eccentric gear 413 to move in the direction of placing the limiting component 3. At the same time, the second eccentric gear 413 is eccentrically set, so that the U-shaped transmission plate 412 drives the U-shaped transmission plate 412 to further move in the direction of placing the limiting component 3, thereby allowing the L-shaped transmission column 402 to move synchronously along the inside of the guide slide groove 414 in the direction of placing the limiting component 3, and drives the connecting bent plate 403 to move in the direction of placing the limiting component 3, until the side surface of the grinding wheel 404 is in contact with the side surface of the electric pump stator 1; when the grinding is completed, the connecting bent plate 403 moves away from the direction, thereby driving the grinding wheel 404 away from the electric pump stator 1.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0046] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electric grinding device for a canned motor pump stator, comprising an electric pump stator (1), a supporting workbench (2), a placement limit assembly (3) and a grinding assembly (4), characterized in that: The placement limiting assembly (3) is fixedly mounted on the upper surface of the supporting workbench (2), and comprises a plurality of rotatably arranged driving wheels (301) and a slidable limiting plate (302), wherein the limiting plate (302) slides and is tightly attached to a side surface of the electric pump stator (1), and the peripheral side surface of the driving wheel (301) is adapted to the electric pump stator (1); The grinding assembly (4) is fixedly mounted on the upper surface of the supporting workbench (2), and comprises an axially movable tail slot slide (401) and a horizontally reciprocating L-shaped transmission column (402), one end of the L-shaped transmission column (402) is fixedly connected to a connecting bent plate (403) that is slidably matched with the upper surface of the tail slot slide (401), and a grinding wheel (404) is fixedly mounted on one side of the connecting bent plate (403), and the horizontal movement of the connecting bent plate (403 drives the grinding wheel (404) to move synchronously, and the grinding wheel (404) contacts the stator (1) of the electric pump for grinding.

2. The electric grinding device for the stator of a canned motor pump according to claim 1 is characterized in that: The placement limiting assembly (3) further comprises a placement platform (303) fixedly connected to the upper surface of the supporting workbench (2), a placement cavity is provided on the surface of the placement platform (303), and an adjustment transmission groove (304) is symmetrically provided on the inner wall of the placement cavity.

3. The electric grinding device for the stator of a canned motor pump according to claim 2, characterized in that: The driving wheel (301) is rotatably arranged in an adjustment transmission groove (304) via a first rotating shaft, and a plurality of driven wheels (305) are rotatably arranged in another adjustment transmission groove (304) via a second rotating shaft, and the circumferential side surfaces of the driven wheels (305) are adapted to the electric pump stator (1); a driving motor (306) is fixedly installed on one side of the placement platform (303), and the output shaft of the driving motor (306) is fixedly connected to the first rotating shaft.

4. The electric grinding device for the stator of a canned motor pump according to claim 3 is characterized in that: The limiting plate (302) is slidably arranged inside the placement cavity, and a return spring (307) is fixedly connected between the limiting plate (302) and the inner wall of the placement platform (303). A positioning groove (308) is provided on one side of the placement platform (303), and the positioning groove (308) has an inclined sliding groove at one end and a circular groove connected to each other.

5. The electric grinding device for the stator of a canned motor pump according to claim 4, characterized in that: The polishing assembly (4) further comprises a linear guide rail (405) fixedly connected to the upper surface of the supporting workbench (2) and a motor slide rail (406) fixedly connected to the upper surface of the supporting workbench (2), and the tail groove slide (401) is arranged between the linear guide rail (405) and the motor slide rail (406).

6. The electric grinding device for the stator of a canned motor pump according to claim 5, characterized in that: A telescopic rod (407) is fixedly connected to one side of the tail groove slide (401) close to the placement platform (303); a positioning block (408) that is slidably matched with the positioning groove (308) is fixedly connected to one end of the telescopic rod (407); and an adjustment spring (409) is fixedly connected between the positioning block (408) and the tail groove slide (401).

7. The electric grinding device for the stator of a canned motor pump according to claim 6, characterized in that: A transmission cavity is provided inside the tail slot slide (401), a U-shaped support plate (410) is fixedly connected inside the transmission cavity, a first eccentric gear (411) is rotatably connected to one side of the U-shaped support plate (410), and a U-shaped transmission plate (412) is slidably provided inside the U-shaped support plate (410); The U-shaped transmission plate (412) is rotatably connected between two relatively side surfaces with a second eccentric gear (413) meshing with the first eccentric gear (411), and a driving device fixedly connected to the eccentric portion of the first eccentric gear (411) is fixedly mounted on the upper surface of the placement table (303).

8. The electric grinding device for the stator of a canned motor pump according to claim 7, characterized in that: The upper surface of the placement platform (303) is fixedly connected to a guide groove (414) which is opened on the upper surface of the placement platform (303) and communicates with the transmission cavity. The L-shaped transmission column (402) is slidably matched with the U-shaped support plate (410). The other end of the L-shaped transmission column (402) passes through the U-shaped support plate (410) and is fixedly connected to the U-shaped transmission plate (412).

Images