Low-cost motor casing structure with built-in mounting hole

Abstract

The utility model discloses a low-cost motor casing structure with built-in mounting holes, which comprises a casing, one end of the casing is provided with a plurality of notches, one end of the casing is integrally provided with a plurality of bent separation blades, the bent separation blades and the notches are arranged at an opening at one end of the casing in a staggered manner, and the inner sides of the bent separation blades are fixedly clamped with bearing flanges. The inner wall of the bearing flange is rotationally connected with an output shaft, the output shaft penetrates through one end of the machine shell, a bearing seat is fixed to one end of the machine shell, a mounting bearing is arranged on the inner wall of the bearing seat, the output shaft is arranged on the inner wall of the mounting bearing, a plurality of rivet fixing holes are formed in one end of the machine shell, and mounting supports are fixed to the inner walls of the rivet fixing holes through self-plugging rivets. According to the utility model, the casing is fixed with the mounting bracket by using the self-plugging rivets through the rivet-pulling fixing holes, so that the internal axial length of the motor can be effectively saved, meanwhile, the motor fixing holes do not need to be arranged on the bearing flange, and the stability of the motor during operation can be improved.

Description

Technical Field

[0001] This utility model relates to the field of motor installation technology, and in particular to a low-cost motor housing structure with built-in mounting holes. Background Technology

[0002] To facilitate motor installation, mounting holes and corresponding mounting plates are usually placed on the outer wall of the motor housing. However, this design will occupy some of the motor installation space. In fields such as automobiles where installation space is relatively tight, it is necessary to minimize the installation space occupied by the motor.

[0003] Therefore, existing motors will have corresponding internal mounting holes on the outer wall. Currently, the internal mounting holes are usually set on the bearing flange. When the motor is running, the bearing flange needs to withstand the bending moment of the motor. Therefore, there are high requirements for the connection strength between the bearing flange and the housing, which can easily lead to unstable operation.

[0004] Meanwhile, the mounting holes built into the motor are generally required to be threaded holes, which will occupy a certain amount of the motor's internal axial length, and there is a risk of metal debris falling into the motor when installing bolts. In addition, the housing with threaded holes is only suitable for forming methods such as aluminum casting and machine tool processing, which results in high housing manufacturing and processing costs.

[0005] Therefore, there is an urgent need for a low-cost motor housing structure that only requires opening holes in the housing, does not occupy axial space, and allows the housing to be manufactured using a deep drawing process with lower component costs, and has built-in mounting holes. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-cost motor housing structure with built-in mounting holes.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A low-cost motor housing structure with built-in mounting holes includes a housing, one end of which has multiple notches, and one end of which is integrally formed with multiple bent baffles. The bent baffles and notches are staggered at the opening at one end of the housing, and a bearing flange is clamped and fixed inside the bent baffles.

[0009] As a further improvement of this utility model: the inner wall of the bearing flange is rotatably connected to an output shaft, which passes through one end of the housing.

[0010] As a further embodiment of this utility model: a bearing seat is fixed at one end of the housing, a mounting bearing is provided on the inner wall of the bearing seat, and the output shaft is disposed on the inner wall of the mounting bearing.

[0011] As a further improvement of this utility model: one end of the housing has multiple rivet fixing holes, and the inner wall of the rivet fixing holes is fixed with a mounting bracket by a pull rivet.

[0012] As a further improvement of this utility model, a connecting block is fixed to the outer wall of the mounting bracket.

[0013] As a further improvement of this utility model: multiple reinforcing blocks are fixed to the inner wall of the housing, and a wear-resistant ring is fixed to one side of the riveting fixing hole.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The housing structure only requires multiple riveting holes on one side of the housing, without occupying extra axial space on the outside. Simultaneously, the housing can be manufactured using a lower-cost deep drawing process, saving on motor manufacturing costs. Furthermore, due to the shorter coaxiality chain from the output shaft to the bearing housing, the output shaft can achieve standard output concentricity with the housing, resulting in smoother motor output. As the direct interface for motor installation, the housing bears the weight of the motor's stator and rotor. Therefore, as an integrated structure, the housing can better withstand the bending moment caused by cantilevered motor installation. The housing is fixed using blind rivets and mounting brackets through the riveting holes, effectively saving internal axial length of the motor. Additionally, the motor mounting holes do not need to be located on the bearing flange, improving the stability of motor operation.

[0016] 2. Since the entire housing is fixed to one side of the mounting bracket by riveting holes and blind rivets, the axial and radial forces on the bending baffle are very small. Therefore, a low-cost riveting method can be selected to fix the housing. At the same time, a notch is formed by extruding the opening at one end of the housing. Then, the bending baffles formed on both sides of the notch are extruded, bent and fixed to one side of the bearing flange, thereby clamping and fixing the bearing flange to the inner wall of the housing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of a low-cost motor housing structure with built-in mounting holes proposed in this utility model.

[0018] Figure 2 This is a cross-sectional view of a low-cost motor housing structure with built-in mounting holes proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of a core-pulling rivet structure for a low-cost motor housing structure with built-in mounting holes proposed in this utility model.

[0020] Figure 4 This is a side view of a low-cost motor housing structure with built-in mounting holes proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of Embodiment 2 of a low-cost motor housing structure with built-in mounting holes proposed in this utility model.

[0022] In the diagram: 1-housing, 2-bearing seat, 3-riveting fixing hole, 4-notch, 5-output shaft, 6-pull rivet, 7-mounting bracket, 8-mounting bearing, 9-connecting block, 10-bending baffle, 11-bearing flange, 13-wear ring, 14-reinforcing block. Detailed Implementation

[0023] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0024] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0025] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0026] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0027] Example 1

[0028] A low-cost motor housing structure with built-in mounting holes, such as Figure 1-5 As shown, it includes a housing 1, with multiple notches 4 at one end of the housing 1, and multiple bent baffles 10 integrally formed at one end of the housing 1. The bent baffles 10 and the notches 4 are alternately arranged at the opening at one end of the housing 1, and a bearing flange 11 is clamped and fixed inside the bent baffles 10.

[0029] The inner wall of the bearing flange 11 is rotatably connected to the output shaft 5, which passes through one end of the housing 1;

[0030] One end of the housing 1 is fixed with a bearing seat 2, and an installation bearing 8 is provided on the inner wall of the bearing seat 2. The output shaft 5 is located on the inner wall of the installation bearing 8.

[0031] The housing 1 has multiple riveting holes 3 at one end, and the inner wall of the riveting holes 3 is fixed with a mounting bracket 7 by a pull rivet 6.

[0032] A connecting block 9 is fixed to the outer wall of the mounting bracket 7.

[0033] In this embodiment, only multiple riveting fixing holes 3 need to be opened on one side of the housing 1, without occupying extra axial space on the outside. At the same time, the housing can be manufactured using a deep drawing process with lower part costs, saving motor manufacturing costs. Also, since the coaxiality dimensional chain from the output shaft 5 to the bearing seat 2 is relatively short, the output shaft 5 can achieve standard output concentricity with the housing 1, making the motor output more stable. The housing 1 serves as the direct interface for motor installation. Since the weight of the motor's stator and rotor is basically borne by the housing 1, the housing 1, as an integral structure, can better withstand the bending moment brought about by the cantilever installation of the motor. At the same time, the housing 1 is fixed by using blind rivets 6 and mounting brackets 7 through the riveting fixing holes 3, which can effectively save the internal axial length of the motor. Furthermore, there is no need to set the motor fixing holes on the bending baffle 10, which can improve the stability of the motor during operation.

[0034] Since the housing 1 is fixed to one side of the mounting bracket 7 by the riveting fixing hole 3 and the pop rivet 6, the axial and radial forces on the bending baffle 10 are very small. Therefore, a low-cost riveting method can be selected to fix the housing 1. At the same time, a notch 4 is formed by pressing the opening at one end of the housing 1. Then, the bending baffle 10 formed on both sides of the notch 4 is pressed, bent and fixed to one side of the bearing flange 11, thereby clamping and fixing the bearing flange 11 to the inner wall of the housing 1.

[0035] Working principle: Multiple riveting holes 3 are opened on one side of the housing 1, which does not occupy extra axial space on the outside. At the same time, the housing can be manufactured using a deep drawing process with lower part cost. Since the coaxiality dimensional chain from the output shaft 5 to the bearing seat 2 is relatively short, the output shaft 5 can achieve standard output concentricity with the housing 1, making the motor output more stable. The housing 1 serves as the direct interface for motor installation. Since the weight of the motor's stator and rotor is basically borne by the housing 1, the housing 1, as an integrated structure, can better withstand the bending moment brought about by the cantilever installation of the motor. At the same time, the housing 1 is fixed by using blind rivets 6 and mounting brackets 7 through the riveting holes 3, which can effectively save the internal axial length of the motor and eliminate the need to set the motor fixing holes on the bending baffle 10.

[0036] A notch 4 is formed by extruding one end of the housing 1, and then the bent baffles 10 formed on both sides of the notch 4 are extruded, bent and fixed to one side of the bearing flange 11, thereby clamping and fixing the bearing flange 11 to the inner wall of the housing 1.

[0037] Example 2

[0038] A low-cost motor housing structure with built-in mounting holes, such as Figure 5 As shown, this embodiment makes the following improvements based on embodiment 1: multiple reinforcing blocks 14 are fixed to the inner wall of the housing 1, and a wear-resistant ring 13 is fixed to one side of the riveting fixing hole 3; the reinforcing blocks 14 can improve the overall structural strength of the housing 1, and the wear-resistant ring 13 set inside the riveting fixing hole 3 can improve the friction between the blind rivet 6 and the inner wall of the housing 1, and at the same time buffer the contact surface between the blind rivet 6 and the inner wall of the housing 1, thereby improving the fixing effect of the blind rivet 6 on the housing 1.

[0039] Working principle: The reinforcing block 14 can improve the overall structural strength of the internal structure of the housing 1, and the wear-resistant ring 13 set inside the riveting fixing hole 3 can improve the friction between the core-pulling rivet 6 and the inner wall of the housing 1.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-cost motor housing structure with built-in mounting holes, comprising a housing (1), characterized in that, The housing (1) has multiple notches (4) at one end, and multiple bent baffles (10) are integrally formed at one end of the housing (1). The bent baffles (10) and the notches (4) are staggered at the opening at one end of the housing (1). A bearing flange (11) is clamped and fixed inside the bent baffles (10).

2. The low-cost motor housing structure with built-in mounting holes according to claim 1, characterized in that, The inner wall of the bearing flange (11) is rotatably connected to an output shaft (5), which passes through one end of the housing (1).

3. The low-cost motor housing structure with built-in mounting holes according to claim 2, characterized in that, One end of the housing (1) is fixed with a bearing seat (2), and the inner wall of the bearing seat (2) is provided with a mounting bearing (8). The output shaft (5) is located on the inner wall of the mounting bearing (8).

4. The low-cost motor housing structure with built-in mounting holes according to claim 3, characterized in that, The housing (1) has multiple rivet fixing holes (3) at one end, and the inner wall of the rivet fixing holes (3) is fixed with a mounting bracket (7) by a pull rivet (6).

5. A low-cost motor housing structure with built-in mounting holes according to claim 4, characterized in that, The mounting bracket (7) has a connecting block (9) fixed to its outer wall.

6. The low-cost motor housing structure with built-in mounting holes according to claim 4, characterized in that, The inner wall of the housing (1) is fixed with multiple reinforcing blocks (14), and a wear-resistant ring (13) is fixed on one side of the rivet fixing hole (3).

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