Stretching machine base of air-cooled permanent magnet all-in-one machine

Abstract

The utility model discloses a stretching machine base of an air-cooled permanent magnet all-in-one machine, and relates to the field of motor equipment, in particular to the stretching machine base of the air-cooled permanent magnet all-in-one machine, which comprises a cylinder, radiating ribs and a mounting boss which are integrally stretched and formed, the side faces, away from the axis of the cylinder, of the installation bosses are installation base faces. At least three connecting parts used for being fixed to an external machine shell are arranged on the installation base face, a concave hanging ring assembly installation groove is formed in the installation base face, the stretching machine base of the air-cooled permanent magnet all-in-one machine adopts an integrated stretching forming technology, heat in a cylinder can be conveniently guided out, the temperature control requirement can be conveniently met through air-cooled heat dissipation, and the stretching machine base is suitable for being used for the air-cooled permanent magnet all-in-one machine. And meanwhile, the motor base has the advantage of convenience in size adjustment due to integral stretch forming, and solves the problems that a traditional motor base is heavy in weight and poor in heat dissipation capability and a mold needs to be changed to adapt to market size customization diversity.

Description

Technical Field

[0001] The utility model relates to the technical field of motor equipment, and more specifically to a stretching machine base of an air-cooled permanent magnet integrated machine. Background Art

[0002] At present, most of the permanent magnet integrated machines on the market have cast iron or cast aluminum bases, which are cast and produced using standard molds. Their sizes cannot be changed after the base mold is finalized, otherwise the relevant molds need to be changed. With the increasing demand for customized permanent magnet integrated machines, more and more customers have put forward higher requirements for the overall size and weight of permanent magnet integrated machines, such as smaller overall size and lighter weight. At the same time, the heat dissipation of existing motors is divided into liquid cooling and air cooling. The liquid cooling system has a complex structure, high maintenance and use costs, which is not conducive to the miniaturization, lightweight and cost reduction of the motor, while air cooling mainly relies on the thermal conductivity of the material itself. When traditional cast iron and cast aluminum parts are used to make small motors, their heat dissipation capacity is reduced due to their own material performance limitations. Therefore, how to provide a motor base that can reduce weight, ensure that the heat dissipation performance meets the standards, and can also adapt to the market size customization diversity is a problem that technicians in this field need to solve urgently. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a stretching machine base for an air-cooled permanent magnet integrated machine, which adopts an integrated stretching forming process to facilitate the heat extraction inside the cylinder and to meet the temperature control requirements through air cooling. At the same time, it has the advantage of integrated stretching forming that is easy to adjust the size, solving the problems of the traditional machine base being heavy, poor heat dissipation capacity and the need to change the mold to adapt to the diversity of market size customization.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A stretching machine base of an air-cooled permanent magnet integrated machine, comprising a cylinder, a heat dissipation rib and a mounting boss formed by stretching in one piece, wherein the heat dissipation rib and the mounting boss are located on the outer circumference of the cylinder;

[0006] There is at least one group of mounting bosses, and the side of the mounting bosses away from the axis of the cylinder is a mounting base surface;

[0007] The installation base surface is provided with at least three connection parts for fixing with an external housing, and a recessed hanging ring assembly installation groove is provided in the installation base surface.

[0008] Preferably, the heat dissipation ribs are arranged in a circular array, and at least three groups of end cover brackets are arranged at intervals inside, and end covers fixing holes for fixing the end covers are arranged at the ends of the end cover brackets, and the end cover brackets are integrally stretched and formed with the cylinder.

[0009] Preferably, the plane where the heat dissipation ribs are located is cross-shaped, and at least three groups of end cover brackets are arranged at intervals inside the heat dissipation ribs, end cover fixing holes are arranged at the ends of the end cover brackets, and the end cover brackets are integrally stretched and formed with the cylinder.

[0010] Preferably, the mounting bosses include at least two groups of mounting platforms that are arranged in parallel and independent of each other, and through grooves penetrating along the axis of the cylinder are provided between the mounting platforms, and the mounting base surfaces of the mounting platforms in the same mounting boss are coplanar.

[0011] Preferably, the mounting bosses include two groups of mounting bosses, and a group of end cover ledges or a plurality of groups of heat dissipation ribs are arranged between the two groups of mounting bosses.

[0012] Preferably, the mounting base surface of each group of the mounting platforms is provided with base fixing holes and lifting ring assembly fixing holes.

[0013] Preferably, the depth of the mounting groove of the lifting ring assembly is less than the height of the mounting boss.

[0014] Preferably, a set screw hole is provided at the bottom of the installation groove of the lifting ring assembly, and the set screw hole penetrates the cylinder wall along the radial direction of the cylinder.

[0015] Preferably, a lifting ring assembly is embedded in the lifting ring assembly installation groove, and the lifting ring assembly includes a lifting ring that can be folded and hidden in the lifting ring assembly installation groove.

[0016] Preferably, the lifting ring assembly also includes a lifting ring mounting seat embedded in the lifting ring assembly mounting groove, and the lifting ring mounting seat is connected to the lifting ring assembly fixing hole through bolts; the lifting ring is an eccentric lifting ring and is rotatably mounted with the lifting ring mounting seat.

[0017] The stretching machine base of the air-cooled permanent magnet integrated machine provided by the utility model has at least the following beneficial effects compared with the prior art:

[0018] 1. The machine base is made by one-piece stretching process, which reduces the weld between the cylinder and the heat dissipation ribs, making the heat conduction resistance smaller, effectively solving the problem of poor heat dissipation performance inside the motor. The air cooling design can effectively simplify the internal structure and reduce the weight of the motor;

[0019] 2. The one-piece stretch forming process can be used to produce machine bases of different lengths using the same mold. It only needs to be cut according to the customized size. It is suitable for the market's demand for diversified customized sizes and effectively reduces the cost of replacing molds.

[0020] 3. The design of the mounting boss formed by integral stretching on the outside of the cylinder is adopted to facilitate the processing of the mounting base surface and improve the installation accuracy of the machine base and the external casing. At the same time, a mounting groove for the lifting ring assembly is opened in the mounting boss, and the lifting ring assembly is embedded in the mounting boss, which can reduce the overall size of the equipment after assembly and reduce the overall space occupied by the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a specific structure provided by the utility model;

[0023] Figure 2 This is a structural schematic diagram of the base mounting lifting ring assembly provided by the utility model;

[0024] Figure 3 It is a cross-sectional view of the machine base mounting lifting ring assembly provided by the utility model.

[0025] In the figure: 1-cylinder; 101-stop; 2-heat dissipation rib; 3-end cover bracket; 301-end cover fixing hole; 4-mounting boss; 401-lifting ring assembly mounting groove; 402-fastening screw hole; 403-machine base fixing hole; 404-lifting ring assembly fixing hole; 5-lifting ring assembly; 501-lifting ring; 502-lifting ring mounting base. 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 in 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.

[0027] The core of the utility model is to provide a stretching machine base for an air-cooled permanent magnet integrated machine. It adopts an integrated stretching forming process to facilitate the heat extraction inside the machine base. At the same time, it adopts an integrated stretching forming process to be able to perform precise cutting of the axial length according to customer customized size requirements. Compared with the traditional casting machine base, it effectively reduces the cost of mold replacement and improves production efficiency.

[0028] Please refer to Figure 1-Figure 3 , Figure 1It is a stretching machine base of an air-cooled permanent magnet integrated machine, comprising a cylinder 1, a heat dissipation rib 2 and a mounting boss 4 formed by integral stretching, wherein the heat dissipation rib 2 and the mounting boss 4 are located on the outer periphery of the cylinder 1;

[0029] There is at least one group of mounting bosses 4, and the side of the mounting bosses 4 away from the axis of the cylinder 1 is the mounting base surface;

[0030] At least three connection parts for fixing with the external housing are arranged on the installation base surface, and a recessed hanging ring assembly installation groove 401 is arranged in the installation base surface.

[0031] During the production process, according to the customer's customized size requirements, the machine base blank of the corresponding length is cut, the inner wall of the cylinder 1 is processed to ensure the surface quality, and then the inner walls of both ends of the cylinder 1 are processed with stoppers 101 to facilitate the fixation of the end covers at both ends to form a good sealing effect and effectively protect the internal rotor and stator. Then, the installation groove 401 of the lifting ring assembly is milled on the installation base surface to facilitate the later fixed installation of the lifting ring assembly 5 inside, ensuring that the lifting ring assembly 5 can be hidden below the installation base surface as a whole in the folded state, so as to reduce the overall appearance size of the integrated machine, such as Figure 2 shown.

[0032] At the same time, when selecting the material for the machine base, aluminum alloy is preferred, which has the advantages of low density and high thermal conductivity, helps to reduce the weight of the machine base and facilitates the heat dissipation inside the machine base.

[0033] It is worth noting that the outside of the mounting base surface is used to fix the housing of the base, and the fixing method is not limited in this embodiment, including but not limited to welding, bolt fixing, rivet riveting, etc. At the same time, the number of mounting bosses 4 is at least one group, and there are at least three non-collinear connection parts between the mounting bosses 4 and the housing, ensuring that the mounting bosses 4 and the housing have a good and stable connection relationship, such as Figure 1 As shown, two mounting bosses 4 symmetrical about the axis of the cylinder 1 are arranged outside the cylinder 1, and four connecting parts are arranged inside each group of mounting bosses 4, which effectively ensures the stable connection between the base and the casing.

[0034] At the same time, the present application does not limit the connection method between the end of the cylinder 1 and the end cap. In some embodiments, the end cap and the cylinder are fixed by direct threaded connection or by snap-fit ​​connection.

[0035] In some embodiments, the heat dissipation ribs 2 are arranged in a circular array, and at least three groups of end cover brackets 3 are arranged at intervals inside. The ends of the end cover brackets 3 are provided with end cover fixing holes 301 for fixing the end covers. The end cover brackets 3 and the cylinder 1 are integrally stretched and formed, that is, the end covers at both ends are installed on a plurality of groups of end cover brackets 3 distributed in the heat dissipation ribs 2, specifically, the bolts passing through the end covers are assembled with the end cover fixing holes 301 through threads to obtain a good positional relationship between the end covers and the base, and a stopper 101 is provided on the inner wall of the end of the cylinder 1 to further improve the coaxiality of the end covers and the cylinder 1 and the sealing performance of the contact position;

[0036] At the same time, the end cover bracket 3 is stretched integrally with the cylinder like the heat dissipation rib 2, and a gap is retained between the heat dissipation rib 2 and the end cover bracket 3 to facilitate heat dissipation on both sides of the heat dissipation rib 2, thereby ensuring that the heat generated by the rotor and stator inside the base can be discharged outward through the cylinder 1 and the heat dissipation rib 2 to achieve the heat dissipation effect.

[0037] In this embodiment, the heat dissipation ribs 2 are arranged in a circular array outside the cylinder 1, and the shape of the housing to which they are adapted is also mainly a circular housing;

[0038] In some other embodiments, the plane where the heat dissipation ribs 2 are located is cross-shaped, and at least three groups of end cover brackets 3 are arranged inside the heat dissipation ribs 2 at intervals, and end cover fixing holes 301 are arranged at the ends of the end cover brackets 3, and the end cover brackets 3 are integrally stretched and formed with the cylinder 1, such as Figure 1 As shown, in this embodiment, the heat dissipation ribs 2 are arranged in a specific direction to form a cross-shaped structure, and the maximum height of the heat dissipation ribs 2 on the same side is not higher than the end cover ledge 3 inside it. The overall cross-sectional shape is close to a rectangle, which is suitable for installation in a square-shaped casing, thereby adapting to different customer customization uses.

[0039] In some embodiments, the mounting boss 4 is designed as a whole piece, that is, the entire mounting base surface is a continuous plane. In this way, the quality of the raw materials used in the base is increased, and the mounting boss 4 has a truncation effect on the axial airflow outside the base, which will have a certain impact on the heat dissipation effect of its surface;

[0040] Therefore, in some embodiments, the mounting boss 4 includes at least two groups of mounting platforms that are arranged in parallel and independent of each other, and a through groove that passes through the axis of the cylinder 1 is provided between the mounting platforms. The mounting base surfaces of the mounting platforms in the same mounting boss 4 are coplanar. Through the arrangement of multiple mounting platforms, a mounting boss 4 is jointly formed, which effectively reduces the amount of raw materials used in the machine base and reduces the interference with the axial airflow outside the machine base, so that the axial airflow can quickly take away the heat from the surface of the machine base to achieve a rapid cooling effect.

[0041] In other embodiments, the mounting boss 4 includes two groups of mounting platforms, and a group of end cover brackets 3 or several groups of heat dissipation ribs 2 are arranged between the two groups of mounting platforms. The end cover brackets 3 and heat dissipation ribs 2 between the two mounting platforms are also regarded as part of the mounting boss 4. After the lifting ring assembly 5 is installed, it can also support the lifting ring assembly 5, further reducing the use of raw materials, reducing the weight of the machine base, and effectively increasing the working area of ​​the mounting boss 4, which can accommodate a larger lifting ring assembly 5 without increasing the interference with the axial airflow outside the machine base.

[0042] like Figure 1 As shown, the mounting base surface of each set of mounting platforms is provided with a base fixing hole 403 and a lifting ring assembly fixing hole 404 .

[0043] When assembling the machine base, first install the eye assembly 5 in the eye assembly installation groove 401, and fix the eye assembly 5 by installing bolts in the eye assembly fixing hole 404. Then, install the entire machine base into the casing, and then fix the machine base and the casing by installing bolts in the machine base fixing hole 403. After completion, the eye assembly 5 corresponds to the through hole on the surface of the casing, but the eye assembly 5 is under the plane wrapped by the casing, that is, the eye assembly 5 is embedded, which effectively reduces the size of the casing and ensures the stability of the installation of the eye assembly 5.

[0044] like Figure 3 As shown, the depth of the mounting groove 401 of the lifting ring assembly is less than the height of the mounting boss 4 .

[0045] After the installation of the lifting ring assembly 5 is completed, a gap is still retained between its bottom and the outer wall of the cylinder 1. When axial airflow passes between the two mounting platforms of the mounting boss 4, the hot air flow under the lifting ring assembly 5 can be taken away, and the entire air duct is smooth, which is conducive to heat dissipation.

[0046] like Figure 3 As shown, a set screw hole 402 is provided at the bottom of the mounting groove 401 of the lifting ring assembly, and the set screw hole 402 penetrates the cylinder wall of the cylinder 1 in the radial direction;

[0047] The stator in the base is usually installed by interference fit, but in order to ensure that it does not move axially, it needs to be fixed or limited. By adding radial set screw holes 402 on the cylinder 1 and assembling set screws, a clamping force can be applied radially to clamp the stator and prevent its axial displacement. Figure 3 As shown, setting the set screw hole 402 at the bottom of the eye assembly mounting groove 401 helps to reduce the opening of the visible surface of the machine base and facilitates hiding of the set screw.

[0048] like Figure 2As shown, a lifting ring assembly 5 is embedded in the lifting ring assembly installation groove 401, and the lifting ring assembly 5 includes a lifting ring 501 that can be folded and hidden in the lifting ring assembly installation groove 401;

[0049] In some embodiments, the lifting ring 501 is a flat lifting hook, the bottom of which is directly fixed to the machine base, and the top of which is not higher than the reference plane of the mounting boss 4, or a two-section lifting hook is used, and there is a hinge point between the rod body and the hook body, and the rod body is fixedly connected to the machine base. After the hook body rotates relative to the rod body, it can be hidden in the lifting ring assembly mounting groove 401.

[0050] In other embodiments, the lifting ring assembly 5 further includes a lifting ring mounting seat 502 embedded in the lifting ring assembly mounting groove 401, and the lifting ring mounting seat 502 is connected to the lifting ring assembly fixing hole 404 through bolts; the lifting ring 501 is an eccentric lifting ring and is rotatably mounted with the lifting ring mounting seat 502;

[0051] A rotating shaft is set at the tangent of one side of the lifting ring 501, and the rotating shaft is rotatably installed with the lifting ring mounting seat 502. When the lifting ring 501 is laid flat, it can be hidden in the lifting ring assembly mounting groove 401. When it is rotated, the lifting ring 501 is exposed outside the lifting ring assembly mounting groove 401, which is convenient for lifting.

[0052] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0053] The above is a detailed introduction to the stretching machine base of the air-cooled permanent magnet integrated machine provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A stretching machine base for an air-cooled permanent magnet integrated machine, characterized in that: It comprises a cylinder (1), a heat dissipation rib (2) and a mounting boss (4) formed by integral stretching, wherein the heat dissipation rib (2) and the mounting boss (4) are located on the outer periphery of the cylinder (1); The mounting bosses (4) are at least one group, and the side of the mounting bosses (4) away from the axis of the cylinder (1) is a mounting base surface; The installation base surface is provided with at least three connection parts for fixing with an external housing, and a recessed hanging ring assembly installation groove (401) is provided in the installation base surface.

2. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 1, characterized in that: The heat dissipation ribs (2) are arranged in a circular array, and at least three groups of end cover brackets (3) are arranged at intervals inside. Ends of the end cover brackets (3) are provided with end cover fixing holes (301) for fixing the end covers. The end cover brackets (3) are integrally formed by stretching with the cylinder (1).

3. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 1, characterized in that: The plane where the heat dissipation ribs (2) are located intersects in a cross shape, and at least three groups of end cover brackets (3) are arranged at intervals inside the heat dissipation ribs (2), and end cover fixing holes (301) are arranged at the ends of the end cover brackets (3), and the end cover brackets (3) and the cylinder (1) are integrally stretched and formed.

4. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 3, characterized in that: The mounting boss (4) comprises at least two mounting platforms which are arranged in parallel and are independent of each other, and a through groove which passes through the axis of the cylinder (1) is provided between the mounting platforms, and the mounting base surfaces of the mounting platforms within the same mounting boss (4) are coplanar.

5. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 4, characterized in that: The mounting bosses (4) include two groups of mounting bosses, and a group of end cover brackets (3) or a plurality of groups of heat dissipation ribs (2) are arranged between the two groups of mounting bosses.

6. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 4, characterized in that: The mounting base surface of each group of mounting platforms is provided with a base fixing hole (403) and a lifting ring assembly fixing hole (404).

7. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 1, characterized in that: The depth of the hanging ring assembly installation groove (401) is less than the height of the installation boss (4).

8. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 1, characterized in that: A fixing screw hole (402) is provided at the bottom of the lifting ring assembly installation groove (401), and the fixing screw hole (402) penetrates the cylinder wall of the cylinder (1) in a radial direction.

9. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 6, characterized in that: A lifting ring assembly (5) is embedded in the lifting ring assembly installation groove (401), and the lifting ring assembly (5) comprises a lifting ring (501) that can be folded and hidden in the lifting ring assembly installation groove (401).

10. The stretching machine base of the air-cooled permanent magnet integrated machine according to claim 9, characterized in that: The lifting ring assembly (5) further comprises a lifting ring mounting seat (502) embedded in the lifting ring assembly mounting groove (401), wherein the lifting ring mounting seat (502) is connected to the lifting ring assembly fixing hole (404) via bolts; the lifting ring (501) is an eccentric lifting ring and is rotatably mounted on the lifting ring mounting seat (502).

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