CN220673484U - Cast aluminum rotor, motor and operation machine - Google Patents

Abstract

The utility model provides a cast aluminum rotor, a motor and an operation machine, and relates to the technical field of motors. The cast aluminum rotor comprises an iron core, an aluminum end ring and rotor end plates, wherein the two rotor end plates are respectively arranged at two ends of the iron core in the axial direction, the rotor end plates are integrally formed on the end face of the iron core, the aluminum end ring is arranged at the peripheral edge of one side face of the rotor end plate, which is opposite to the iron core, and the aluminum end ring is integrally formed on the side face of the rotor end plate. According to the utility model, the rotor end plate is integrally formed on the end face of the iron core, so that the rotor punching sheet at the position of the most end of the iron core is effectively prevented from being scattered, the service life of the iron core is prolonged, the aluminum end ring is integrally formed on the rotor end plate, the aluminum end ring can start the dynamic balance function, the stability of the rotor in operation is improved, namely the stability of the iron core in operation is improved, and therefore, the stability of the rotor punching sheet at the position of the most end of the iron core in operation is improved, and the occurrence of scattered situation is further effectively prevented.

Description

Cast aluminum rotor, motor and operation machine

Technical Field

The utility model relates to the technical field of motors, in particular to a cast aluminum rotor, a motor and a working machine.

Background

The rotor punching sheet is usually processed by adopting a silicon steel sheet, and a plurality of rotor punching sheets are axially stacked together to form a rotor core.

The machining precision and the matching precision of the motor rotor punching sheet have important influence on the performance and the service life of the motor. With the increase of service life, the problem of scattered sheets exists on the silicon steel sheets at the two outermost sides of an individual motor, so that the surfaces of the 1 st to 2 nd rotor sheets at the two sides of the motor rotor core are expanded outwards and cracked, noise, vibration and efficiency are increased when the motor operates, and even the motor is damaged.

Disclosure of Invention

In order to solve the above problems at least to a certain extent, in a first aspect, the present utility model provides a cast aluminum rotor, which includes an iron core, an aluminum end ring and rotor end plates, wherein the two rotor end plates are respectively disposed at two ends of the iron core along an axial direction, the rotor end plates are integrally formed on an end surface of the iron core, the aluminum end ring is disposed at a peripheral edge of a side surface of the rotor end plates, which is opposite to the iron core, and the aluminum end ring is integrally formed on a side surface of the rotor end plates.

Optionally, the rotor end plate is integrally formed on the end face of the iron core in a casting mode.

Optionally, the aluminum end ring is integrally formed on the side surface of the rotor end plate in a casting mode.

Optionally, the iron core includes ventilation frid and rotor punching, a plurality of rotor punching and a plurality of ventilation frid are along axial lamination, and a plurality of ventilation frid equidistance is located in the rotor punching.

Optionally, a plurality of cast aluminum flanging grooves are formed in the periphery of the ventilation groove plate, ventilation groove pipes are arranged on the cast aluminum flanging grooves in a stacked mode, tail portions are arranged on the ventilation groove pipes, and the tail portions extend towards the circle center direction of the ventilation groove plate along the radial direction of the ventilation groove plate.

Optionally, the ventilation groove pipe is of an integral bending forming structure.

Optionally, the ventilation groove pipe is made of a carbon steel strip through bending.

Optionally, through grooves corresponding to the punching grooves on the rotor punching sheet one by one are formed in the rotor end plate, and the size of each through groove is slightly larger than that of each punching sheet groove.

In a second aspect, the present utility model provides an electric machine comprising a cast aluminium rotor as described above.

In a third aspect, the present utility model provides a work machine comprising a motor as described above

Compared with the prior art, the utility model has the following beneficial effects:

through with rotor end plate integrated into one piece in the terminal surface of iron core, two rotor end plates are integrative with the rotor punching of iron core both ends outside respectively promptly to the effectual scattered piece condition of rotor punching of preventing iron core both ends position department appears, improved the life of iron core, just improved the life of motor yet, and, integrated into one piece has the aluminium end ring on the rotor end plate, and the aluminium end ring can start the state balancing action, has improved the stability when rotor operation, just also has improved the stability when iron core operation, so, can improve the stability when rotor punching of iron core both ends position department operates, further effectually prevented the emergence of scattered piece condition.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of a rotor end plate according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a rotor punching sheet according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a ventilation slot board according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a cast aluminum flanging groove and a ventilation groove pipe on a ventilation groove plate in an embodiment of the utility model.

Reference numerals illustrate:

1. an aluminum end ring; 2. a rotor end plate; 3. a ventilation slot plate; 31. a cast aluminum flanging groove; 32. a ventilation duct; 4. rotor punching; 100. a rotor shaft.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, descriptions of the terms "embodiment," "one embodiment," "some embodiments," "illustratively," and "one embodiment" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or implementation of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. As such, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The Z axis in the figure represents vertical, i.e. up and down, and the positive direction of the Z axis represents up and the negative direction of the Z axis represents down; the X-axis in the drawing indicates the horizontal direction and is designated as the left-right position, and the positive direction of the X-axis indicates the left side and the negative direction of the X-axis indicates the right side; it should also be noted that the foregoing Z-axis and X-axis representations are only for convenience and the purpose of simplifying the description, and are not intended to indicate or imply that the devices or elements being referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1, an embodiment of the present utility model provides a cast aluminum rotor, which includes an iron core, an aluminum end ring 1 and rotor end plates 2, wherein the two rotor end plates 2 are respectively disposed at two ends of the iron core along an axial direction, the rotor end plates 2 are integrally formed on an end surface of the iron core, the aluminum end ring 1 is disposed at a peripheral edge of a side surface of the rotor end plates 2, which is opposite to the iron core, and the aluminum end ring 1 is integrally formed on a side surface of the rotor end plates 2.

The cast aluminum rotor is produced by casting, for example, the aluminum end ring 1, the cast aluminum guide bar, the rotor punching sheet 4 and the ventilation groove plate 3 can be placed on a designed tooling die in a certain order, aluminum ingots are melted into aluminum liquid, the aluminum end ring 1, the cast aluminum guide bar, the rotor punching sheet 4 and the ventilation groove plate 3 are cast into a whole, and then sleeved on the rotor shaft 100 together to form the cast aluminum rotor.

In this embodiment, through with rotor end plate 2 integrated into one piece in the terminal surface of iron core, two rotor end plates 2 are integrative with the rotor punching 4 of iron core both ends outside respectively, thereby the effectual scattered piece condition that appears of rotor punching 4 that prevents iron core both ends position department, improved the life of iron core, just also improved the life of motor, and, integrated into one piece has aluminium end ring 1 on rotor end plate 2, aluminium end ring 1 can start the state balancing action, stability when rotor operation has been improved, just also improved the stability when iron core operation, so, can improve the stability when rotor punching 4 of iron core both ends position department operates, further effectually prevent the emergence of scattered piece condition.

Alternatively, as shown in fig. 1, the rotor end plate 2 is integrally formed on the end face of the iron core by casting, and the aluminum end ring 1 is integrally formed on the side face of the rotor end plate 2 by casting.

The rotor end plate 2 may be cut from a 4mm thick steel plate and mounted on both sides of the core.

In this embodiment, after the iron core is cast, after the iron core is cooled, aluminum liquid is continuously injected into the cavity corresponding to the casting mold, after the cooling and fixing are performed, rotor end plates 2 are formed at two ends of the iron core, after the rotor end plates 2 are cooled, aluminum liquid is continuously injected into the cavity corresponding to the casting mold, after the cooling and fixing are performed, an aluminum end ring 1 is formed at the side surface of the rotor end plates 2, and the aluminum casting process of the aluminum casting rotor is completed. The aluminum end ring 1 has three functions, namely, as an end connection of a rotor conductor, also called a short circuit ring, to connect a rotor winding, and as a simple fan, to radiate heat. As a weight stack, a dynamic balancing action is initiated.

Alternatively, as shown in fig. 3 and 4, the iron core includes a ventilation slot plate 3 and rotor sheets 4, the rotor sheets 4 and the ventilation slot plates 3 are stacked in the axial direction, and the ventilation slot plates 3 are equidistantly arranged in the rotor sheets 4.

In this embodiment, the ventilation slot plate 3 is used to segment the iron core to form a radial ventilation channel, so that the cooling medium can pass through, and the ventilation and heat dissipation purposes are achieved.

Alternatively, as shown in fig. 5, a plurality of aluminum casting flanging grooves 31 are arranged on the periphery of the ventilation groove plate 3, ventilation groove pipes 32 are arranged on the aluminum casting flanging grooves 31 in a stacked and pressed mode, tail portions are arranged on the ventilation groove pipes 32, and the tail portions extend towards the circle center direction of the ventilation groove plate 3 along the radial direction of the ventilation groove plate 3.

It should be noted that, the plurality of aluminum casting flanging grooves 31 are uniformly distributed along the surface circumference of the ventilation groove plate 3, the aluminum casting flanging grooves 31 may be integrally cast and formed, or may be formed by stamping, the ventilation groove pipe 32 has a head portion in addition to a tail portion, the head portion of the ventilation groove pipe 32 is mounted on the aluminum casting flanging groove 31 in a stacked manner, and the tail portion of the ventilation groove pipe 32 extends along the radial direction of the ventilation groove plate 3 toward the center direction of the ventilation groove plate 3.

In this embodiment, through set up a plurality of ventilation slot pipes 32 in ventilation slot board 3 circumference, not only improved the heat dispersion of iron core, still cancelled the welding process and the rotor ventilation slot piece of ventilation slot pipe 32 among the traditional structure, reduced manufacturing process, reduced material cost, easy and simple to handle, and can satisfy the operation requirement.

Alternatively, as shown in fig. 5, the ventilation slot tube 32 is an integrally bent structure, and the ventilation slot tube 32 is made of a carbon steel strip by bending.

In this embodiment, the ventilation duct 32 may be formed by bending a carbon steel strip with a thickness of 0.8-1.2mm and a width of 8-12mm, and has a long service life, corrosion resistance, and good durability and durability.

Optionally, as shown in fig. 2 and 3, the rotor end plate 2 is provided with through grooves corresponding to the punching grooves on the rotor punching sheet 4 one by one, and the size of the through grooves is slightly larger than that of the punching grooves.

In this embodiment, the one-to-one correspondence between the through slots on the rotor end plate 2 and the punching slots on the rotor punching sheet 4 means that the number of the through slots is the same as that of the punching slots, so that the through slots and the punching slots can be in one-to-one correspondence when the rotor end plate 2 is mounted on the rotor punching sheet 4 at the two ends, and the size of the through slots is designed to be slightly larger than that of the punching slots, so that burrs and burrs on the peripheral surfaces of the through slots cannot extend into the range of the punching slots, and therefore the work of the enameled wire embedded in the punching slots cannot be affected.

Another embodiment of the present utility model provides an electric machine comprising the cast aluminum rotor as above, having the same advantages as above, as having the cast aluminum rotor as above.

A further embodiment of the utility model provides a work machine comprising a motor as above, having the same advantages as above, as a result of having a motor as above.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and such changes and modifications would fall within the scope of the utility model.

Claims (10)

1. The utility model provides a cast aluminum rotor, its characterized in that includes iron core, aluminium end ring (1) and rotor end plate (2), two rotor end plate (2) are located respectively the both ends of iron core along axial direction, just rotor end plate (2) integrated into one piece in the terminal surface of iron core, aluminium end ring (1) are located rotor end plate (2) are dorsad a side periphery of iron core, just aluminium end ring (1) integrated into one piece in the side of rotor end plate (2).

2. Cast aluminum rotor according to claim 1, characterized in that the rotor end plate (2) is integrally formed to the end face of the core by casting.

3. Cast aluminum rotor according to claim 1, characterized in that the aluminum end ring (1) is integrally molded to the side of the rotor end plate (2) by casting.

4. The cast aluminum rotor as recited in claim 1 wherein the iron core comprises a plurality of ventilation slot plates (3) and rotor punching sheets (4), wherein a plurality of the rotor punching sheets (4) and the plurality of ventilation slot plates (3) are stacked in the axial direction, and wherein the plurality of ventilation slot plates (3) are equidistantly arranged in the plurality of rotor punching sheets (4).

5. The cast aluminum rotor as claimed in claim 4, wherein a plurality of cast aluminum flanging grooves (31) are formed in the periphery of the ventilation groove plate (3), ventilation groove pipes (32) are installed on the cast aluminum flanging grooves (31) in a stacked mode, and tail portions are arranged on the ventilation groove pipes (32) and extend towards the center of the ventilation groove plate (3) along the radial direction of the ventilation groove plate (3).

6. The cast aluminum rotor as recited in claim 5 wherein the vent slot tube (32) is of unitary bent-over construction.

7. The cast aluminum rotor as recited in claim 6 wherein the vent slot tube (32) is fabricated from a strip of carbon steel.

8. The cast aluminum rotor as claimed in claim 4, wherein through slots corresponding to the punching slots on the rotor punching sheet (4) are formed in the rotor end plate (2), and the size of the through slots is slightly larger than that of the punching slots.

9. An electric machine comprising the cast aluminum rotor of any one of claims 1-8.

10. A work machine comprising the electric machine of claim 9.