CN218335469U - Motor rotor and tool for solving dynamic balance of rotor - Google Patents

Abstract

The utility model provides an electric motor rotor, including the rotor iron-clad, the terminal surface and the face of cylinder of rotor iron-clad are as an organic whole, and the shaft hole has been seted up at the terminal surface center of rotor iron-clad, and the shaft hole is used for the tight fit with motor shaft pressure equipment. Simultaneously, the tool for solving the dynamic balance of the rotor comprises a tool base and a tool movable seat, wherein the tool base is fixedly arranged, a motor shaft is fixed on the tool base, the tool movable seat is connected with the tool base through a guide structure and an elastic buffering structure, a through hole corresponding to the motor shaft is formed in the tool movable seat, and the outer diameter of an upper punching column is matched with the inner diameter of an iron shell of the rotor. The utility model discloses can make rotor iron-clad one-time stamping forming, still will add the material axle sleeve after the cancellation shaping, a large amount of process time and material cost have been saved to processing skill electric spark welded step to accelerated the production ageing and saved a large amount of costs, and can solve with the frock that corresponds, guarantee product strength and equilibrium problem.

Description

Motor rotor and tool for solving dynamic balance of rotor

Technical Field

The utility model relates to an electric motor rotor technical field, in particular to electric motor rotor and solve rotor dynamic balance's frock.

Background

The motor rotor is the part of the motor that rotates. The motor rotor is divided into an inner rotor rotation mode and an outer rotor rotation mode, wherein the inner rotor rotation mode is that a core body in the middle of the motor is a rotating body, and torque (referring to a motor) is output or energy is input (referring to a generator); the outer rotor rotation mode is that the motor outer body is used as a rotating body, and different modes are convenient for application in various occasions. Fig. 2 shows that the common motor iron shell in the market at present has the advantages that the iron shell cannot deform when being tightly fitted and pressed with a shaft, the situation that the dynamic balance of the manufactured motor is poor and the like cannot be caused, and the defect that the shaft sleeve is arranged in the middle of the iron shell, so that an electric spark riveting procedure needs to be added when the iron shell is produced, the production time consumption is long, the number cannot follow orders, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel rotor iron shell to the not enough that exists among the above-mentioned background art, having saved rotor cost and production ageing, and use new frock to solve the pressure equipment in the aspect of the technology and warp the scheduling problem.

In order to achieve the purpose, the utility model provides an electric motor rotor, including the rotor iron-clad, the terminal surface and the face of cylinder of rotor iron-clad are as an organic whole, the shaft hole has been seted up at the terminal surface center of rotor iron-clad, the shaft hole is used for with motor shaft pressure equipment tight fit.

Furthermore, the end face and the cylindrical surface of the rotor iron shell are made of steel plates with the thickness of 1 mm.

The utility model also provides a solve rotor dynamic balance's frock is applied to as before electric motor rotor, including last frock subassembly and lower frock subassembly, the frock subassembly includes frock base and frock sliding seat down, the fixed setting of frock base, the last fixed of frock base the motor shaft, the frock sliding seat with frock base passes through guide structure and elastic buffer structural connection, set up on the frock sliding seat with the perforation that the motor shaft corresponds, go up the frock subassembly including being cylindrical punching press post, punching press post's external diameter with the internal diameter phase-match of rotor iron-clad.

Furthermore, the guide structure is a guide post, the bottom end of the guide post is fixedly connected with the tool base, a guide hole is formed in the tool movable seat, and the guide post is inserted in the guide hole.

Furthermore, the elastic buffer structure is a spring, the spring is sleeved in the guide post, the top end of the spring is connected with the tool movable seat, and the bottom end of the spring is connected with the tool base.

Further, the tool base and the tool movable seat are both circular.

Further, the bottom of punching press post includes first punching press portion and second punching press portion, first punching press portion with the setting is cut to second punching press portion, first punching press portion with the outer loop of rotor iron-clad terminal surface corresponds, second punching press portion with the shaft hole of rotor iron-clad terminal surface corresponds.

The above technical scheme of the utility model has following beneficial effect:

the utility model provides an electric motor rotor and frock scheme can make rotor iron-clad one-time stamping forming, still will add the material axle sleeve after the cancellation shaping, and a large amount of process time and material cost have been saved to processing technology electric spark welded step to accelerated the production ageing and saved a large amount of costs, and can solve with the frock that corresponds, guarantee product strength and balance degree problem.

Other advantageous effects of the present invention will be described in detail in the following detailed description.

Drawings

FIG. 1 is a schematic view of the structure of the rotor iron shell of the present invention;

FIG. 2 is a schematic view of a prior art rotor iron shell structure;

FIG. 3 is a schematic view of the structure of the tool of the present invention;

fig. 4 is a schematic view of the bottom structure of the stamping column of the present invention.

[ description of reference ]

1-rotor iron shell; 2-end face; 3-a cylindrical surface; 4-shaft hole; 5-motor shaft; 6-shaft sleeve; 7-a tool base; 8-a tool movable seat; 9-punching the column; 10-a guide post; 11-a spring; 12-a first punch; 13-second punch.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. 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. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, e.g. as a locking connection, a detachable connection or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the embodiment of the utility model provides an electric motor rotor, including rotor iron-clad 1, wherein, the terminal surface 2 and the face of cylinder 3 of rotor iron-clad 1 are as an organic whole, and shaft hole 4 has been seted up at the terminal surface center of rotor iron-clad 1, and shaft hole 4 is used for 5 pressure equipment tight suits with the motor shaft.

In a preferred embodiment, the end face and the cylindrical surface 3 of the rotor iron shell 1 are made of SECC steel plates with the thickness of 1mm, and are processed in an integrated molding mode.

Compare in prior art (fig. 2) the scheme that 1 terminal surface center of rotor iron-clad set up axle sleeve 6, its consumption that needs to increase axle sleeve 6 to and increase one electric spark riveting process and lead to that production time consumes defects such as long, the cost is high on the side, the rotor iron-clad 1 that this embodiment provided can one time press fitting, saves the cost of axle sleeve 6 and the cost of electric spark welding processing between axle sleeve 6 and the rotor iron-clad 1, promotes production efficiency.

Because rotor iron-clad 1 does not set up axle sleeve 6, need rely on the mode of direct punching press to make motor shaft 5 and 1 pressure equipment of rotor iron-clad, can lead to rotor iron-clad 1 to warp and influence rotor dynamic balance, based on this, this embodiment still provides a frock of solving rotor dynamic balance.

Meanwhile, as shown in fig. 3, the tool specifically comprises an upper tool assembly and a lower tool assembly. Wherein, lower tool assembly includes tool holder 7 and tool movable seat 8, and tool holder 7 is fixed to be set up, supports promptly on the workstation, fixes motor shaft 5 on the tool holder 7. The tool movable seat 8 is connected with the tool base 7 through a guide structure and an elastic buffer structure, so that the tool movable seat 8 can elastically lift relative to the tool base 7. The tool movable seat 8 is provided with a through hole corresponding to the motor shaft 5 and used for the motor shaft 5 to pass through during press mounting. Go up the frock subassembly including being cylindrical punching press post 9, the external diameter of punching press post 9 and the internal diameter phase-match of rotor iron-clad 1, therefore get into rotor iron-clad 1 and direct and the terminal surface contact of rotor iron-clad 1 when the punching press, make 1 terminal surface of rotor iron-clad and the contact of frock sliding seat 8 and drive frock sliding seat 8 decline, reduce rotor iron-clad 1 deformation under the elastic buffer effect when accomplishing the punching press, the problem of processing back electric motor rotor dynamic balance has been solved well.

In this embodiment, guide structure is guide post 10, and the bottom and the frock base 7 fixed connection of guide post 10 have seted up the guiding hole on the frock sliding seat 8, and guide post 10 is inserted and is located in the guiding hole, leads the lift of frock sliding seat 8, makes frock sliding seat 8 more steady at the in-process of 1 punching press operation of rotor iron-clad, rocks the phenomenon and reduces and alleviate the deformation of rotor iron-clad 1.

Simultaneously, elastic buffer structure is spring 11, and in the guide post 10 was located to spring 11 direct cover in this embodiment, spring 11's top was connected with frock sliding seat 8, and spring 11's bottom is connected with frock base 7, and the preferred mode that all adopts the contact in both ends, it is more convenient to install and dismantle, and can guarantee the elastic buffer effect to frock sliding seat 8.

As the preferred embodiment, in this embodiment, the tooling base 7 and the tooling sliding seat 8 are both circular, that is, the tooling base and the tooling sliding seat are consistent with the end surface of the rotor iron shell 1, so that the overall tooling is more compact during stamping, and the lifting of the tooling sliding seat 8 and the like can be further stable.

Meanwhile, as shown in fig. 4, as a further improvement, in this embodiment, the bottom end of the stamping column 9 includes a first stamping part 12 and a second stamping part 13, the first stamping part 12 and the second stamping part 13 are arranged in a cutting manner, specifically, the first stamping part 12 is a cylindrical surface of the stamping column 9, the second stamping part 13 is a core column in the middle of the stamping column 9, and a avoiding hole corresponding to the motor shaft 5 is also formed in the bottom end of the second stamping part 13.

Therefore, the first punched portion 12 corresponds to the outer ring of the end face of the rotor iron shell 1, and the second punched portion 13 corresponds to the shaft hole 4 of the end face of the rotor iron shell 1, so that punching forces can be generated near the two positions respectively during punching, and the whole rotor iron shell 1 cannot be in end face contact, thereby reducing the contact area with the end face of the rotor iron shell 1, further reducing stress and preventing the rotor iron shell 1 from deforming.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. The motor rotor comprises a rotor iron shell and is characterized in that the end face of the rotor iron shell and a cylindrical surface are integrated, a shaft hole is formed in the center of the end face of the rotor iron shell, and the shaft hole is used for being tightly matched with a motor shaft in a press-fitting mode.

2. An electric machine rotor according to claim 1, characterised in that the end faces and cylindrical faces of the rotor iron shell are made of steel plates 1mm thick.

3. A tool for solving the dynamic balance of a rotor is applied to the motor rotor as claimed in any one of claims 1-2, and is characterized by comprising an upper tool assembly and a lower tool assembly, wherein the lower tool assembly comprises a tool base and a tool movable seat, the tool base is fixedly arranged, the motor shaft is fixedly arranged on the tool base, the tool movable seat is connected with the tool base through a guide structure and an elastic buffer structure, a through hole corresponding to the motor shaft is formed in the tool movable seat, the upper tool assembly comprises a columnar stamping column, and the outer diameter of the stamping column is matched with the inner diameter of a rotor iron shell.

4. The tool for solving the dynamic balance problem of the rotor according to claim 3, wherein the guide structure is a guide post, the bottom end of the guide post is fixedly connected with the tool base, a guide hole is formed in the tool movable seat, and the guide post is inserted into the guide hole.

5. The tool for solving the dynamic balance problem of the rotor according to claim 4, wherein the elastic buffering structure is a spring, the spring is sleeved in the guide post, the top end of the spring is connected with the tool movable seat, and the bottom end of the spring is connected with the tool base.

6. The tool for solving the dynamic balance problem of the rotor according to claim 3, wherein the tool base and the tool movable seat are both circular.

7. The tool for solving the dynamic balance problem of the rotor according to claim 3, wherein the bottom end of the stamping column comprises a first stamping portion and a second stamping portion, the first stamping portion and the second stamping portion are arranged in a cutting mode, the first stamping portion corresponds to an outer ring of the end face of the rotor iron shell, and the second stamping portion corresponds to a shaft hole of the end face of the rotor iron shell.

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