CN214055119U - Rotor assembly dismounting device - Google Patents
Rotor assembly dismounting device Download PDFInfo
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- CN214055119U CN214055119U CN202023143063.2U CN202023143063U CN214055119U CN 214055119 U CN214055119 U CN 214055119U CN 202023143063 U CN202023143063 U CN 202023143063U CN 214055119 U CN214055119 U CN 214055119U
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- rotor assembly
- commutator
- dismounting device
- plate
- extrusion
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Abstract
The utility model discloses a rotor subassembly dismounting device, including backup pad, bearing sleeve and extrusion subassembly, under the initial condition, the commutator is solid the cover at the dabber of rotor subassembly. When the assembly and disassembly are carried out, the support plate is sleeved between the commutator and the rotor assembly, and the support plate is abutted against the end face of the commutator; then the rotor assembly provided with the supporting plate is inserted into the bearing sleeve until the step surface of the bearing sleeve is abutted against the supporting plate; and finally, starting the extrusion assembly, extruding the core shaft of the rotor assembly along the axial direction of the rotor assembly by the extrusion assembly, keeping the commutator fixed due to the support of the support plate, and separating the core shaft from the commutator when the core shaft moves for a certain distance relative to the commutator, so that the rotor assembly and the commutator are disassembled, the disassembly and the assembly are convenient, and the commutator cannot be damaged.
Description
Technical Field
The utility model relates to a micromotor technical field, in particular to rotor subassembly dismounting device.
Background
The micro motor has the advantages of large moment, light weight, small volume, constant running speed and the like, and is commonly used in a control system to realize detection, calculation, amplification, execution or conversion and the like of an electric signal or used for transmitting mechanical load. The rotor assembly of the micromotor comprises a rotor assembly and a commutator, then an enameled wire is wound, after the micromotor is electrified, the rotor assembly rotates at a high speed under the action of electromagnetic force, and then the poles of the micromotor are changed through the commutator, so that the micromotor keeps continuous motion in the same direction.
However, the commutator is fixedly sleeved on the mandrel of the rotor assembly, and the commutator can be detached from the mandrel only by applying a large acting force, so that the disassembly difficulty is large and the disassembly is inconvenient. In addition, the commutator has higher precision and high price, and the difficulty in dismounting is further increased by using overlarge external force to pull out the commutator and destroy the structure of the commutator.
In summary, how to conveniently disassemble the rotor assembly and the commutator without damaging the commutator is a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a rotor subassembly dismounting device inserts the bearing sleeve and makes the backup pad offset with the step face of bearing sleeve to the rotor subassembly that will be equipped with the backup pad, recycles the dabber of extrusion subassembly along the axial extrusion rotor subassembly of rotor subassembly, breaks away from the commutator until the dabber, can realize conveniently dismantling rotor subassembly and commutator under the prerequisite of not destroying the commutator.
The specific scheme is as follows:
the utility model provides a rotor subassembly dismounting device, include:
the supporting plate is arranged between the commutator and the rotor assembly and is abutted against the end face of the commutator;
the end part of the bearing sleeve is provided with a step surface, and when the rotor assembly is inserted into the bearing sleeve, the supporting plate is abutted against the step surface;
the supporting plate is arranged on the step surface and then extrudes the core shaft of the rotor assembly along the axial direction of the rotor assembly until the core shaft is separated from the extrusion assembly of the commutator.
Preferably, the pressing assembly comprises:
extruding the rod;
the guide sleeve is used for guiding the extrusion rod to extrude the mandrel along the axial direction;
and the extrusion driving piece is used for driving the extrusion rod to move along the guide hole of the guide sleeve.
Preferably, the outer diameter of the extrusion rod is smaller than the outer diameter of the mandrel.
Preferably, the end of the bearing sleeve is provided with a limiting groove for limiting the position of the guide sleeve so that the extrusion rod is coaxial with the mandrel.
Preferably, the limiting groove is a tapered groove.
Preferably, the support plate comprises a left support plate and a right support plate which are oppositely arranged.
Preferably, the end face of the commutator is provided with a butting groove, and the left support plate and the right support plate are respectively and correspondingly provided with a left butting plate and a right butting plate which are butted against the butting groove.
Preferably, the left abutting plate and the right abutting plate are both in a semicircular arc shape.
Preferably, the length of the central hole of the bearing sleeve is larger than that of the mandrel.
Preferably, the inner diameter of the central bore is greater than the outer diameter of the rotor assembly.
Compared with the prior art, the utility model provides a rotor subassembly dismounting device, including backup pad, bearing sleeve and extrusion subassembly, under the initial condition, the commutator is cover admittedly at the dabber of rotor subassembly. When the assembly and disassembly are carried out, the support plate is sleeved between the commutator and the rotor assembly, and the support plate is abutted against the end face of the commutator; then the rotor assembly provided with the supporting plate is inserted into the bearing sleeve until the step surface of the bearing sleeve is abutted against the supporting plate; and finally, starting the extrusion assembly, extruding the core shaft of the rotor assembly along the axial direction of the rotor assembly by the extrusion assembly, keeping the commutator fixed due to the support of the support plate, and separating the core shaft from the commutator when the core shaft moves for a certain distance relative to the commutator, so that the rotor assembly and the commutator are disassembled, the disassembly and the assembly are convenient, and the commutator cannot be damaged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a structural diagram of a rotor assembly dismounting device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an assembled view of the rotor assembly, mandrel, support plate and commutator of FIG. 1;
FIG. 4 is an assembled view of the spindle, left support plate, and commutator of FIG. 1;
figure 5 is a cross-sectional view of the carrying case of figure 1.
The reference numbers are as follows:
the commutator 1, the rotor assembly 2, the mandrel 3, the support plate 4, the bearing sleeve 5 and the extrusion assembly 6;
an abutting groove 11;
a left plate 41 and a right plate 42;
a left abutting plate 411;
a right butt plate 421;
a central hole 50, a step surface 51 and a limit groove 52;
an extrusion rod 61, a guide sleeve 62 and an extrusion head 63.
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 work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 5, fig. 1 is a structural diagram of a rotor assembly dismounting device according to an embodiment of the present invention; FIG. 2 is a cross-sectional view of FIG. 1; FIG. 3 is an assembled view of the rotor assembly, mandrel, support plate and commutator of FIG. 1; FIG. 4 is an assembled view of the spindle, left support plate, and commutator of FIG. 1; figure 5 is a cross-sectional view of the carrying case of figure 1.
The embodiment of the utility model discloses rotor subassembly dismounting device, including backup pad 4, bearing sleeve 5 and extrusion components 6.
The support plate 4 is arranged between the commutator 1 and the rotor assembly 2, the support plate 4 is abutted against the end face of the commutator 1, so that when the extrusion assembly 6 extrudes the rotor assembly 2, the commutator 1 can be radially kept still under the support of the support plate 4, the commutator 1 is jacked up, and conditions are provided for the commutator 1 to be separated from the rotor assembly 2.
The end of the bearing sleeve 5 is provided with a step surface 51. The bearing sleeve 5 has a central hole 50 in the center, the central hole 50 is used for inserting the rotor assembly 2, and a step surface 51 is specifically arranged at the end of the central hole 50. The depth of the step surface 51 is determined by the mounting position of the commutator 1 on the spindle 3 of the rotor assembly 2, and is not particularly limited.
In the initial state, the commutator 1 is fixedly sleeved on the mandrel 3 of the rotor assembly 2. When the commutator 1 is disassembled and assembled, the support plate 4 is sleeved between the commutator 1 and the rotor assembly 2, and the support plate 4 is abutted against the end face of the commutator 1; then the rotor assembly 2 assembly with the support plate 4 is inserted into the central hole 50 of the bearing sleeve 5 until the step surface 51 of the bearing sleeve 5 is abutted against the support plate 4, and the step surface 51 plays a supporting role; finally, start extrusion subassembly 6, extrusion subassembly 6 extrudees dabber 3 of rotor subassembly 2 along the axial of rotor subassembly 2, and commutator 1 keeps stationary because of the support of backup pad 4, and when dabber 3 moved a distance for commutator 1, dabber 3 throw off commutator 1 to dismantle rotor subassembly 2 and commutator 1, the dismouting is more convenient and can not destroy commutator 1.
In this embodiment, the extruding assembly 6 comprises an extruding rod 61, a guide sleeve 62 and an extruding driving member, wherein a guide hole is formed in the center of the guide sleeve 62, the extruding rod 61 is arranged in the guide hole, and the inner diameter of the guide hole is in transition fit with the outer diameter of the extruding rod 61. When the extrusion driving member is started, the extrusion driving member extrudes the extrusion rod 61 along the axial direction, and the extrusion rod 61 extrudes the mandrel 3 under the guidance of the guide hole, so that the mandrel 3 is separated from the commutator 1. The guiding hole is coaxial with the mandrel 3, and the guiding sleeve 62 is coaxial with the bearing sleeve 5, so as to ensure that the extrusion rod 61 is coaxial with the mandrel 3. The extrusion driving member may be a pneumatic or hydraulic cylinder, or a hand hammer. The extrusion rod 61 is specifically a cylindrical rod. The outer peripheral surface of the guide sleeve 62 is shaped by the central hole 50 of the bearing sleeve 5 and may be cylindrical, but is not limited thereto.
In this embodiment, the extrusion drive member is provided with an extrusion head 63, and the bottom of the extrusion head 63 is flat to prevent the extrusion rod 61 from deflecting during extrusion.
In order to prevent the extrusion rod 61 from being clamped in the center of the commutator 1, the outer diameter of the extrusion rod 61 is smaller than that of the mandrel 3, and after the mandrel 3 is separated from the commutator 1, the extrusion rod 61 can be easily pulled out of the commutator 1, so that the extrusion rod 61 is prevented from damaging the commutator 1.
The end of the bearing sleeve 5 is provided with a limiting groove 52, after the supporting plate 4 is arranged on the step surface 51, the guide sleeve 62 is arranged in the limiting groove 52, the position of the guide sleeve 62 is limited by the limiting groove 52, the limiting groove 52 and the guide sleeve 62 are kept coaxial, the guide hole is aligned with the mandrel 3, the extrusion rod 61 is coaxial with the mandrel 3, and the commutator 1 is prevented from being damaged by extrusion due to the deviation of the extrusion process of the extrusion rod 61.
In order to compensate for the wear amount of the stopper groove 52, the stopper groove 52 is a tapered groove, so that the stopper groove 52 maintains a high stopper accuracy for a long time. Accordingly, the side surface of the guide sleeve 62 is a conical surface, so that the tapered surface of the stopper groove 52 is matched with the tapered surface of the guide sleeve 62. Of course, the limit groove 52 may be a cylindrical groove, and the side surface of the guide sleeve 62 is a cylindrical surface.
Consider that commutator 1 and rotor subassembly 2 the two external diameter all is greater than the external diameter of dabber 3, conveniently adorn backup pad 4 between commutator 1 and rotor subassembly 2, the utility model provides a backup pad 4 is preferred split type structure, and backup pad 4 is including relative left extension board 41 and the right extension board 42 that sets up. Considering that the central hole 50 is a circular hole, the left and right brackets 41 and 42 are both semicircular plates.
The end face of one end, facing the rotor assembly 2, of the commutator 1 is provided with a butting groove 11, the left support plate 41 is provided with a left butting plate 411, the right support plate 42 is provided with a right butting plate 421, the left butting plate 411 and the right butting plate 421 both extend along the axial direction, when the left support plate 41 is opposite to the right support plate 42, the left butting plate 411 and the right butting plate 421 are combined to form a round support sleeve, and the round support sleeve butts against the butting groove 11 of the commutator 1, so that the support plate 4 and the commutator 1 keep a certain axial distance, and the support plate 4 is prevented from crushing an outward turning hook arranged on the periphery of the commutator 1.
Considering that the mandrel 3 and the abutting groove 11 are both cylindrical, the left abutting plate 411 and the right abutting plate 421 are both semicircular, the left abutting plate 411 and the right abutting plate 421 are respectively matched with the mandrel 3, and meanwhile, the left abutting plate 411 and the right abutting plate 421 are both reliably abutted against the abutting groove 11.
To disengage the spindle 3 from the commutator 1, the central bore 50 of the bearing sleeve 5 is longer than the spindle 3, so that the central bore 50 provides sufficient space for the movement of the spindle 3. Further, the inner diameter of the central bore 50 is larger than the outer diameter of the rotor assembly 2, preventing the central bore 50 from wearing out of the rotor assembly 2.
The utility model provides a rotor subassembly dismounting device's work flow as follows:
in an initial state, the commutator 1 is fixedly sleeved on a mandrel 3 of the rotor assembly 2;
when the assembly and disassembly are carried out, the support plate 4 is sleeved between the commutator 1 and the rotor assembly 2, and the support plate 4 abuts against the end face of the commutator 1;
then the rotor assembly 2 provided with the support plate 4 is inserted into the central hole 50 of the bearing sleeve 5 until the step surface 51 of the bearing sleeve 5 is abutted against the support plate 4, and the step surface 51 supports the support plate 4;
the guide sleeve 62 in the extrusion assembly 6 is put into the bearing sleeve 5;
starting the extrusion assembly 6, extruding the extrusion driving piece to extrude the extrusion rod 61 along the axial direction, extruding the core shaft 3 of the rotor assembly 2 along the axial direction of the rotor assembly 2 at the guide hole of the guide sleeve 62 by the extrusion rod 61, and keeping the commutator 1 fixed;
when the spindle 3 moves a distance relative to the commutator 1, the spindle 3 disengages the commutator 1, disassembling the rotor assembly 2 and the commutator 1.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A rotor assembly disassembly apparatus, comprising:
the supporting plate (4) is arranged between the commutator (1) and the rotor component (2) and is abutted against the end face of the commutator (1);
the end part of the bearing sleeve (5) is provided with a step surface (51), and when the rotor assembly (2) is inserted into the bearing sleeve (5), the support plate (4) is abutted against the step surface (51);
and the extrusion assembly (6) is used for extruding the mandrel (3) of the rotor assembly (2) along the axial direction of the rotor assembly (2) after the supporting plate (4) is placed on the step surface (51) until the mandrel (3) is separated from the commutator (1).
2. The rotor assembly dismounting device according to claim 1, wherein the pressing assembly (6) comprises:
an extrusion rod (61);
a guide sleeve (62) for guiding the extrusion rod (61) to extrude the mandrel (3) along the axial direction;
and the extrusion driving piece is used for driving the extrusion rod (61) to move along the guide hole of the guide sleeve (62).
3. A rotor assembly dismounting device according to claim 2, characterized in that the outer diameter of the pressing bar (61) is smaller than the outer diameter of the spindle (3).
4. A rotor assembly dismounting device according to claim 2, characterized in that the end of the carrying sleeve (5) is provided with a limiting groove (52) for limiting the position of the guiding sleeve (62) to make the pressing rod (61) coaxial with the mandrel (3).
5. A rotor assembly dismounting device according to claim 4, characterized in that said limiting groove (52) is embodied as a tapered groove.
6. A rotor assembly dismounting device according to any one of claims 1 to 5, characterized in that the support plate (4) comprises a left fulcrum plate (41) and a right fulcrum plate (42) arranged oppositely.
7. A rotor assembly dismounting device according to claim 6, characterized in that the end face of the commutator (1) is provided with a butt groove (11), and the left support plate (41) and the right support plate (42) are respectively provided with a left butt plate (411) and a right butt plate (421) which butt against the butt groove (11).
8. The rotor assembly dismounting device according to claim 7, wherein said left abutting plate (411) and said right abutting plate (421) are both semi-circular arc shaped.
9. A rotor assembly dismounting device according to any one of claims 1 to 5, characterized in that the length of the central hole (50) of the carrying sleeve (5) is greater than the length of the spindle (3).
10. The rotor assembly dismounting device according to claim 9, wherein an inner diameter of the central hole (50) is larger than an outer diameter of the rotor assembly (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023143063.2U CN214055119U (en) | 2020-12-23 | 2020-12-23 | Rotor assembly dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023143063.2U CN214055119U (en) | 2020-12-23 | 2020-12-23 | Rotor assembly dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214055119U true CN214055119U (en) | 2021-08-27 |
Family
ID=77386636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023143063.2U Active CN214055119U (en) | 2020-12-23 | 2020-12-23 | Rotor assembly dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214055119U (en) |
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2020
- 2020-12-23 CN CN202023143063.2U patent/CN214055119U/en active Active
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