Coaxial mounting mechanism for motor end cover

Abstract

The utility model relates to the technical field of motors, in particular to a motor end cover coaxial mounting mechanism, which comprises a main base, a first end cover, a second end cover, a coaxial positioning element and a motor module, the main base is provided with a placement cavity, the motor module is arranged in the placement cavity, the motor module is provided with an output shaft, and the output shaft is provided with a coaxial positioning element. The two ends of the output shaft are rotationally connected with the first end cover and the second end cover correspondingly. A coaxial through hole is formed in the main base, a first coaxial positioning hole is formed in the first end cover, a second coaxial positioning hole is formed in the second end cover, and the coaxial positioning element sequentially penetrates through the first coaxial positioning hole, the coaxial through hole and the second coaxial positioning hole; the main base, the first end cover and the second end cover are connected through the coaxial positioning elements, so that the coaxiality and the stability of the whole mechanism are further enhanced. The coaxial positioning element sequentially penetrates through the first coaxial positioning hole, the coaxial through hole and the second coaxial positioning hole, and accurate alignment and fixation among the three components are achieved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a coaxial mounting mechanism for motor end caps. Background Technology

[0002] Electric motors, as devices that convert electrical energy into mechanical energy (or vice versa), play a vital role in modern industry and daily life. From a professional perspective, electric motors primarily operate based on the principle of electromagnetic induction, and their core components typically include a stator, rotor, and electromagnetic windings. In an electric motor, the stator, as the stationary part, is usually equipped with electromagnetic windings to generate a rotating magnetic field. The rotor, as the rotating part, rotates due to the force exerted by the rotating magnetic field through electromagnetic induction, thereby converting electrical energy into mechanical energy. Furthermore, electric motors come in various types to adapt to different application scenarios. For example, DC motors and AC motors differ in structure and operating principle, and are respectively suitable for applications requiring stable speed and wide speed range.

[0003] In existing motor structures, end caps need to be installed at both ends of the motor housing. However, it is difficult to guarantee the coaxiality of the end cap centers, which affects the motor's accuracy, and consequently, its lifespan. Therefore, a new design is needed to address the coaxiality issues in existing motor mounting structures. Utility Model Content

[0004] To address the aforementioned issues, this utility model employs a coaxial positioning element to connect the main base, the first end cover, and the second end cover, further enhancing the coaxiality and stability of the entire mechanism. The coaxial positioning element passes sequentially through the first coaxial positioning hole, the coaxial through hole, and the second coaxial positioning hole, achieving precise alignment and fixation between the three components in this coaxial motor end cover mounting mechanism.

[0005] The technical solution adopted by this utility model is: a coaxial mounting mechanism for motor end caps, including a main base, a first end cap, a second end cap, a coaxial positioning element, and a motor module. The main base is provided with a mounting cavity, and the motor module is disposed in the mounting cavity. The motor module is provided with an output shaft, and the two ends of the output shaft are rotatably connected to the first end cap and the second end cap, respectively. The main base is provided with a coaxial through hole, the first end cap is provided with a first coaxial positioning hole, and the second end cap is provided with a second coaxial positioning hole. The coaxial positioning element passes through the first coaxial positioning hole, the coaxial through hole, and the second coaxial positioning hole in sequence, so that the main base is connected to the first end cap and the second end cap.

[0006] A further improvement to the above scheme is that multiple coaxial through holes are provided, and the multiple coaxial through holes are evenly distributed in a circumferential direction on the outer periphery of the mounting cavity. The number of the first coaxial positioning hole and the second coaxial positioning hole is the same as the number of coaxial through holes.

[0007] A further improvement to the above scheme is that positioning slots are provided on both sides of the coaxial through hole, and positioning pins are provided on both sides of the second end cover located in the second coaxial positioning hole. The positioning pins are used to cooperate with the positioning slots so that the second end cover cooperates with one end of the main base.

[0008] A further improvement to the above solution is that a first ear plate is provided on one side of the first end cover, and a second ear plate is provided on one side of the second end cover. The first ear plate and the second ear plate are opposite to each other. An assembly positioning shaft is provided on the first ear plate, and the assembly positioning shaft is used to connect the first ear plate and the second ear plate.

[0009] A further improvement to the above solution is that the first end cover is provided with a first rotating shaft fixing part, the first rotating shaft fixing part is provided with a first bearing, and the first bearing is used to connect the output shaft.

[0010] A further improvement to the above solution is that the first end cap is provided with a first locking hole, one end of the first locking hole is connected to a first coaxial positioning hole, and a first locking element is provided on the first locking hole. The first locking element is used to lock and fix the coaxial positioning element.

[0011] A further improvement to the above solution is that the second end cover is provided with a second rotating shaft fixing part, the second rotating shaft fixing part is provided with a second bearing, and the second bearing is used to connect the output shaft.

[0012] A further improvement to the above scheme is that the end of the second coaxial positioning hole is provided with a built-in positioning hole, and one end of the coaxial positioning element is provided with a built-in positioning end, which is disposed on the built-in positioning hole.

[0013] A further improvement to the above solution is that a first mounting and fixing part is provided on one side of the first end cap, and the first mounting and fixing part is provided with a first mounting and fixing groove; a second mounting and fixing part is provided on one side of the second end cap, and the second mounting and fixing part is provided with a second mounting and fixing groove; the bottom surfaces of the first mounting and fixing part and the second mounting and fixing part are flush.

[0014] A further improvement to the above scheme is that the first end cover is provided with a first positioning assembly groove, and the second end cover is provided with a second positioning assembly groove. The first positioning assembly groove and the second positioning assembly groove are respectively used to install the two ends of the main base.

[0015] The beneficial effects of this utility model are:

[0016] Compared to existing motor end cover mounting structures, this invention provides a stable and precise mounting environment for the motor module through a mounting cavity in the main base. This design not only ensures the accuracy of the motor module's position during installation but also effectively prevents vibration and noise problems caused by improper installation. The presence of the mounting cavity minimizes interference between the motor module and its surrounding environment, thereby improving the motor's operating efficiency and stability. Secondly, the output shaft of the motor module is rotatably connected to the first and second end covers at both ends, respectively, achieving stable support and rotation of the motor output shaft. The first and second end covers not only protect the internal structure of the motor but also ensure the coaxiality and stability of the output shaft during rotation through precise machining and fit. Furthermore, the main base, the first end cover, and the second end cover are connected by coaxial positioning elements, further enhancing the coaxiality and stability of the entire mechanism. The coaxial positioning elements pass sequentially through the first coaxial positioning hole, the coaxial through hole, and the second coaxial positioning hole, achieving precise alignment and fixation between the three components. This connection method not only simplifies the assembly process but also greatly improves assembly accuracy and efficiency. At the same time, due to the presence of coaxial positioning elements, even under high load or long-term operation, it can effectively prevent the loss of coaxiality caused by loosening or deformation of components. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the coaxial mounting mechanism for the motor end cover of this utility model;

[0018] Figure 2 for Figure 1 Exploded view of the coaxial mounting mechanism of the motor end cover;

[0019] Figure 3 for Figure 1 Front view of the coaxial mounting mechanism for the motor end cover;

[0020] Figure 4 for Figure 3 Sectional view of AA;

[0021] Figure 5 for Figure 3 A cross-sectional view of BB.

[0022] Explanation of reference numerals in the attached drawings: Main base 1, mounting cavity 11, coaxial through hole 12, positioning through groove 121, first end cover 2, first coaxial positioning hole 21, first ear plate 22, assembly positioning shaft 23, first rotating shaft fixing part 24, first bearing 241, first locking hole 25, first locking element 251, first mounting fixing part 26, first mounting fixing groove 261, first positioning assembly groove 27, second end cover 3, second coaxial positioning hole 31, positioning pin block 311, built-in positioning hole 312, second ear plate 32, second rotating shaft fixing part 33, second bearing 331, second mounting fixing part 34, second mounting fixing groove 341, second positioning assembly groove 35, coaxial positioning element 4, built-in positioning end 41, motor module 5, output shaft 51. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-5As shown, in one embodiment of this utility model, a coaxial mounting mechanism for a motor end cover is provided, including a main base 1, a first end cover 2, a second end cover 3, a coaxial positioning element 4, and a motor module 5. The main base 1 is provided with a mounting cavity 11, and the motor module 5 is disposed within the mounting cavity 11. The motor module 5 is provided with an output shaft 51, and the two ends of the output shaft 51 are rotatably connected to the first end cover 2 and the second end cover 3, respectively. The main base 1 is provided with a coaxial through hole 12, the first end cover 2 is provided with a first coaxial positioning hole 21, and the second end cover 3 is provided with a second coaxial positioning hole 31. The coaxial positioning element 4 passes through the first coaxial positioning hole 21, the coaxial through hole 12, and the second coaxial positioning hole 31 in sequence, so that the main base 1 is connected to the first end cover 2 and the second end cover 3. In this embodiment, the mounting cavity 11 provided in the main base 1 provides a stable and precise installation environment for the motor module 5. This design not only ensures the positional accuracy of the motor module 5 during installation but also effectively prevents vibration and noise problems caused by improper installation. The presence of the mounting cavity 11 minimizes interference between the motor module 5 and its surrounding environment, thereby improving the motor's operating efficiency and stability. Secondly, the output shaft 51 of the motor module 5 is rotatably connected to the first end cover 2 and the second end cover 3 at both ends, achieving stable support and rotation of the motor output shaft 51. The first end cover 2 and the second end cover 3 not only protect the internal structure of the motor but also ensure the coaxiality and stability of the output shaft 51 during rotation through precise machining and fit. Furthermore, the main base 1, the first end cover 2, and the second end cover 3 are connected by a coaxial positioning element 4, further enhancing the coaxiality and stability of the entire mechanism. The coaxial positioning element 4 passes sequentially through the first coaxial positioning hole 21, the coaxial through hole 12, and the second coaxial positioning hole 31, achieving precise alignment and fixation between the three components. This connection method not only simplifies the assembly process but also greatly improves assembly accuracy and efficiency. Simultaneously, due to the presence of the coaxial positioning element 4, even under high load or long-term operation, it effectively prevents the loss of coaxiality caused by component loosening or deformation.

[0026] Multiple coaxial through holes 12 are provided, and these holes 12 are evenly distributed circumferentially around the outer periphery of the mounting cavity 11. The number of the first coaxial positioning holes 21 and the second coaxial positioning holes 31 is the same as the number of coaxial through holes 12. In this embodiment, the even distribution of the multiple coaxial through holes 12 ensures the stability and balance of the motor end cover during installation, effectively avoiding installation deviations or damage caused by uneven force. Simultaneously, the number of the first coaxial positioning holes 21 and the second coaxial positioning holes 31 is consistent with the number of coaxial through holes 12. This design not only simplifies the installation process but also improves installation accuracy and efficiency. The corresponding arrangement of the positioning holes and through holes allows the motor end cover to be accurately coaxially positioned with the mounting mechanism, thereby ensuring the overall operational stability and performance reliability of the motor.

[0027] Positioning slots 121 are provided on both sides of the coaxial through hole 12. Positioning pins 311 are provided on both sides of the second end cover 3 located in the second coaxial positioning hole 31. The positioning pins 311 are used to engage with the positioning slots 121, so that the second end cover 3 engages with one end of the main base 1. In this embodiment, the engagement of the positioning slots 121 and the positioning pins 311 ensures the coaxiality of the second end cover 3 and one end of the main base 1 during installation, avoiding mechanical failures or performance degradation caused by installation deviations. Secondly, this structure simplifies the installation steps and improves assembly efficiency. The positioning pins 311 can be quickly and accurately inserted into the positioning slots 121 without additional adjustment or correction, thereby reducing production costs and labor intensity. Finally, it also enhances the connection stability between the motor end cover and the main base 1. The tight engagement of the positioning pins 311 and the positioning slots 121 effectively prevents the motor end cover from loosening or shifting during use, ensuring long-term stable operation of the motor.

[0028] A first ear plate 22 is provided on one side of the first end cover 2, and a second ear plate 32 is provided on one side of the second end cover 3. The first ear plate 22 and the second ear plate 32 are opposite to each other. An assembly positioning shaft 23 is provided on the first ear plate 22, which is used to connect the first ear plate 22 and the second ear plate 32. In this embodiment, the first ear plate 22 and the second ear plate 32 provided on the first end cover 2 and the second end cover 3 respectively achieve precise positioning and relative fixation between them. This design not only simplifies the installation process but also greatly improves assembly efficiency. The assembly positioning shaft 23 provided on the first ear plate 22, as a key connecting component, ensures the coaxiality between the first ear plate 22 and the second ear plate 32. This coaxial installation not only enhances the stability of the motor end cover structure but also effectively reduces vibration and noise problems caused by coaxiality deviation, thereby improving the overall operating performance of the motor.

[0029] The first end cover 2 is provided with a first rotating shaft fixing part 24, and the first rotating shaft fixing part 24 is provided with a first bearing 241, which is used to connect the output shaft 51. Specifically, the second end cover 3 is provided with a second rotating shaft fixing part 33, and the second rotating shaft fixing part 33 is provided with a second bearing 331, which is used to connect the output shaft 51. In this embodiment, the first rotating shaft fixing part 24 on the first end cover 2 achieves stable support and precise positioning of the output shaft 51 through the built-in first bearing 241. This design not only improves the smoothness of the operation of the rotating parts, but also effectively reduces frictional losses caused by axial offset. At the same time, the second rotating shaft fixing part 33 on the second end cover 3 and its built-in second bearing 331 work together with the first bearing 241 to ensure a high degree of coaxiality consistency of the output shaft 51. This double-end-cover, double-bearing layout greatly enhances the overall rigidity and structural stability of the coaxial mounting mechanism of the motor end cover, enabling the motor to maintain excellent performance even when operating at high speed or under heavy load.

[0030] The first end cap 2 is provided with a first locking hole 25, one end of which communicates with the first coaxial positioning hole 21. A first locking element 251 is provided on the first locking hole 25, which is used to lock and fix the coaxial positioning element 4. In this embodiment, by connecting one end of the first locking hole 25 with the first coaxial positioning hole 21, the precise positioning and locking of the coaxial positioning element 4 is achieved. As a key component, the first locking element 251 not only ensures the stability of the coaxial positioning element 4 during installation, but also effectively prevents loosening or displacement that may occur during motor operation, thereby greatly improving the working efficiency and operational reliability of the motor.

[0031] The second coaxial positioning hole 31 has a built-in positioning hole 312 at its end, and the coaxial positioning element 4 has a built-in positioning end 41 at one end, which is disposed on the built-in positioning hole 312. In this embodiment, the built-in positioning hole 312 at the end of the second coaxial positioning hole 31 and the built-in positioning end 41 at one end of the coaxial positioning element 4 achieve a precise and stable positioning connection. This ensures that the motor end cover can accurately align with the coaxial component during installation, avoiding assembly errors caused by positioning deviations. The tight fit between the built-in positioning end 41 and the built-in positioning hole 312 enhances the overall stability and reliability of the installation mechanism, enabling the motor to maintain stable coaxiality during operation, thereby reducing vibration and noise, and improving the motor's operating efficiency and service life.

[0032] A first mounting and fixing part 26 is provided on one side of the first end cap 2, and the first mounting and fixing part 26 is provided with a first mounting and fixing groove 261. A second mounting and fixing part 34 is provided on one side of the second end cap 3, and the second mounting and fixing part 34 is provided with a second mounting and fixing groove 341. The bottom surfaces of the first mounting and fixing part 26 and the second mounting and fixing part 34 are flush. In this embodiment, the first mounting and fixing part 26 and the first mounting and fixing groove 261 provided on one side of the first end cap 2, together with the second mounting and fixing part 34 and the second mounting and fixing groove 341 provided on one side of the second end cap 3, constitute a precise and stable fixing mechanism. This design not only ensures that the first end cap 2 and the second end cap 3 can be quickly positioned during installation, but also greatly improves the coaxiality of the installation and reduces mechanical vibration and noise caused by installation errors. In addition, the bottom surfaces of the first mounting and fixing part 26 and the second mounting and fixing part 34 are designed to be flush, and this detail further enhances the flatness and stability of the installation.

[0033] The first end cover 2 is provided with a first positioning assembly groove 27, and the second end cover 3 is provided with a second positioning assembly groove 35. The first positioning assembly groove 27 and the second positioning assembly groove 35 are respectively used to install the two ends of the main base 1. In this embodiment, the positioning assembly grooves precisely correspond to the two ends of the main base 1, ensuring that the motor end cover can achieve high coaxial positioning during installation. Specifically, this design not only simplifies the installation steps but also significantly improves the installation accuracy and stability. Guided by the positioning assembly grooves, the main base 1 can be quickly and accurately assembled into place, avoiding misalignment or shaking problems that may occur in traditional installation methods. In addition, the combined use of the first positioning assembly groove 27 and the second positioning assembly groove 35 effectively enhances the connection strength between the motor end cover and the main base 1, improving the overall structural stability.

[0034] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A coaxial mounting mechanism for a motor end cover, characterized in that: The device includes a main base, a first end cap, a second end cap, a coaxial positioning element, and a motor module. The main base has a mounting cavity, and the motor module is mounted inside the mounting cavity. The motor module has an output shaft, and the two ends of the output shaft are rotatably connected to the first end cap and the second end cap, respectively. The main base has a coaxial through hole, the first end cap has a first coaxial positioning hole, and the second end cap has a second coaxial positioning hole. The coaxial positioning element passes through the first coaxial positioning hole, the coaxial through hole, and the second coaxial positioning hole in sequence, so that the main base is connected to the first end cap and the second end cap.

2. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The coaxial through holes are provided in multiple ways, and the multiple coaxial through holes are evenly distributed in a circumferential direction on the outer periphery of the mounting cavity. The number of the first coaxial positioning holes and the second coaxial positioning holes is the same as the number of coaxial through holes.

3. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: Positioning slots are provided on both sides of the coaxial through hole. Positioning pins are provided on both sides of the second end cap located in the second coaxial positioning hole. The positioning pins are used to cooperate with the positioning slots so that the second end cap cooperates with one end of the main base.

4. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: A first ear plate is provided on one side of the first end cap, and a second ear plate is provided on one side of the second end cap. The first ear plate and the second ear plate are opposite to each other. An assembly positioning shaft is provided on the first ear plate, and the assembly positioning shaft is used to connect the first ear plate and the second ear plate.

5. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The first end cover is provided with a first rotating shaft fixing part, and the first rotating shaft fixing part is provided with a first bearing, which is used to connect the output shaft.

6. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The first end cap is provided with a first locking hole, one end of which is connected to a first coaxial positioning hole. A first locking element is provided on the first locking hole, which is used to lock and fix the coaxial positioning element.

7. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The second end cover is provided with a second rotating shaft fixing part, and the second rotating shaft fixing part is provided with a second bearing, which is used to connect the output shaft.

8. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The second coaxial positioning hole has a built-in positioning hole at one end, and the coaxial positioning element has a built-in positioning end at one end, which is located on the built-in positioning hole.

9. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The first end cap has a first mounting and fixing part on one side, and the first mounting and fixing part has a first mounting and fixing groove. The second end cap has a second mounting and fixing part on one side, and the second mounting and fixing part has a second mounting and fixing groove. The bottom surfaces of the first mounting and fixing part and the second mounting and fixing part are flush.

10. The coaxial mounting mechanism for the motor end cover according to claim 1, characterized in that: The first end cap is provided with a first positioning assembly groove, and the second end cap is provided with a second positioning assembly groove. The first positioning assembly groove and the second positioning assembly groove are respectively used to install the two ends of the main base.

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