Alternating current motor

Abstract

The utility model discloses an AC motor, comprising a casing and a motor shaft, a bearing is arranged between the casing and the motor shaft, the front end of the casing is provided with an end cover, the casing is provided with a convex ring, the convex ring and the front end of the casing form a first annular groove, the convex ring and the rear end of the casing form a second annular groove, and the second annular groove is recessed inwards to form a limiting groove. The limiting grooves are evenly distributed in the circumferential direction of the second annular groove. The motor shell is reasonable in design, high in structural strength and high in practicability, the structural strength of the motor shell is improved through the design of the convex ring, the second annular groove and the first annular groove, the limiting groove can facilitate accurate positioning of the limiting piece, the limiting groove serves as connection and installation guiding of the motor and other components, the installation process is smoother and more accurate, and the installation efficiency is improved. The motor is prevented from deviating from other parts during installation, meanwhile, the position stability of the motor in the operation process can be ensured, the motor is prevented from moving during working, and the motor is prevented from being damaged or the performance of the motor is prevented from being influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to an AC motor. Background Art

[0002] AC motor is a machine used to realize the mutual conversion between mechanical energy and AC electric energy. Due to the tremendous development of AC power system, AC motor has become the most commonly used motor. Compared with DC motor, AC motor has no commutator, so it has simple structure, convenient manufacturing, relatively strong, and easy to make high speed, high voltage, high current, and large capacity motor. The motor in the prior art does not have a limit part, and the problem of displacement is easy to occur when the motor is connected and installed with other components, and the motor operation is unstable, which is not conducive to the actual use of users. Utility Model Content

[0003] The purpose of the utility model is to provide a technical solution for an AC motor to address the deficiencies in the prior art. The utility model has a reasonable structural design, high structural strength, and high practicality. Limiting grooves are arranged on the casing to facilitate accurate positioning and fixation of the motor and other components, prevent the motor from offsetting, avoid the motor from shaking, ensure safety in use, and at the same time increase the aesthetics of the motor.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An AC motor includes a housing and a motor shaft, a bearing is arranged between the housing and the motor shaft, an end cover is arranged at the front end of the housing, a convex ring is arranged on the housing, a first ring groove is formed between the convex ring and the front end of the housing, a second ring groove is formed between the convex ring and the rear end of the housing, the second ring groove is inwardly recessed to form a limiting groove, and the limiting grooves are evenly distributed along the circumference of the second ring groove. The design of the convex ring, the second ring groove and the first ring groove increases the structural strength of the housing, the limiting groove can facilitate the precise positioning of the limiting member, and serves as a guide for the connection and installation of the motor and other components, making the installation process smoother and more accurate, avoiding the deviation of the installation of the motor and other components, and at the same time ensuring the position stability of the motor during operation, preventing the motor from moving when working, and avoiding damage to the motor or affecting the performance of the motor.

[0006] Furthermore, a protrusion is provided on the second ring groove, and a wiring port is provided on the protrusion, which makes the wiring of the motor more convenient and flexible, simplifies the wiring process, improves work efficiency, and facilitates the maintenance of the motor and subsequent maintenance work.

[0007] Furthermore, ear plates are evenly arranged on the convex ring in the circumferential direction, and the bottom of the ear plates is smoothly inclined and transitioned with the second ring groove. The ear plates increase the structural strength and stability of the housing, reduce the deformation of the housing, and the ear plates are evenly distributed along the circumference of the convex ring to avoid stress concentration and local damage caused by uneven force. The smooth inclined transition design has a beautiful structure.

[0008] Furthermore, the ear plate is provided with an embedding groove with one end open, and a connecting hole is provided through the embedding groove. The connecting hole cooperates with fasteners such as bolts, so that the ear plate can be firmly connected to other components, and the embedding groove with one end open can facilitate the installation of fasteners and improve assembly efficiency.

[0009] Furthermore, a limit hole is provided on the motor shaft, and a latch is provided through the limit hole. The latch can be used as an additional support and fixing device to disperse the stress on the motor shaft, prevent the motor shaft from bending or deforming due to external force or vibration, and can also be used as a clamping piece to be installed with other components.

[0010] Furthermore, a convex portion is provided on the rear end of the housing, a groove is formed between the convex portion and the housing, and reinforcing ribs are evenly distributed in the circumferential direction of the groove. The groove can reduce the overall weight of the housing and achieve lightweight, and the reinforcing ribs can enhance the structural strength and stability of the housing and prevent the housing from being deformed or damaged.

[0011] Furthermore, a placement groove is provided on the rear end of the housing, and the placement groove matches the bearing. This ensures that the bearing is positioned stably and accurately, thereby preventing operating failures or performance degradation caused by improper installation. Secondly, the bearing is a key rotating component in the motor, and its stable operation is crucial to the overall performance of the motor. By matching with the placement groove, the bearing can better withstand the load and vibration during rotation, reducing performance loss caused by friction or wear.

[0012] Furthermore, an extension is provided on the front end of the housing, an inner convex portion 1 is provided on the end cover, a mounting groove 1 is formed between the inner convex portion 1 and the outer edge of the end cover, and the mounting groove 1 matches the extension. The precise positioning and installation between the housing and the end cover improves the assembly efficiency, and the inner convex portion 1 can also play a certain sealing role.

[0013] Furthermore, the end cover is provided with an inner convex part 2, and an installation groove 2 is provided in the inner part 2, and the installation groove 2 matches the bearing, so as to ensure the accurate positioning and installation of the bearing and ensure that the bearing can be stably installed in the housing.

[0014] Furthermore, the end cover is provided with an edge, a positioning hole is provided on the edge, a threaded column is provided on the housing, the positioning hole matches the threaded column, and the nut passes through the threaded column and is locked and fitted with the edge to achieve fixed installation between the end cover and the housing. It is convenient to achieve the fixation between the housing and the end cover, and the installation operation is convenient, the connection is firm, and it is convenient to inspect and repair the inside of the motor.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0016] The utility model has beautiful structure, reasonable design and high structural strength. The limit groove can facilitate the precise positioning of the limit part and serve as a guide for the limit part, making the installation process smoother and more accurate, ensuring the position stability of the motor during operation and preventing the motor from moving when working, avoiding damage to the motor or affecting the performance of the motor. The ear plate is convenient for staff to carry and increases the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the bottom structure;

[0020] Figure 3 It is a structural schematic diagram of the casing in the first embodiment;

[0021] Figure 4 for Figure 3 Schematic diagram of the bottom structure;

[0022] Figure 5 It is a schematic diagram of the structure of the end cover in the first embodiment;

[0023] Figure 6 for Figure 5 Schematic diagram of the bottom structure;

[0024] Figure 7 It is a structural schematic diagram of the second embodiment;

[0025] Figure 8 It is a schematic diagram of the structure of the end cover in the second embodiment.

[0026] In the figure: 1- housing; 2- motor shaft; 4- convex part; 5- end cover; 6- limiting groove; 7- protrusion; 8- wiring port; 9- edge; 10- positioning hole; 11- threaded column; 12- annular groove 2; 13- annular groove 1; 14- limiting through hole; 15- latch; 16- ear plate; 17- connecting hole; 18- embedded groove; 19- groove; 20- reinforcing rib; 21- extension part; 22- inner convex part 1; 23- mounting groove 1; 24- inner convex part 2; 25- mounting groove 2; 26- placement groove; 27- nut; 28- convex ring. DETAILED DESCRIPTION

[0027] like Figures 1 to 6As shown, the first embodiment of the utility model includes a housing 1 and a motor shaft 2, a bearing (not shown) is arranged between the housing 1 and the motor shaft 2, an end cover 5 is arranged at the front end of the housing 1, a convex ring 28 is arranged on the housing 1, a ring groove 13 is formed between the convex ring 28 and the front end of the housing 1, a ring groove 2 12 is formed between the convex ring 28 and the rear end of the housing 1, the ring groove 2 12 is recessed inward to form a limiting groove 6, and the limiting grooves 6 are evenly distributed along the circumference of the ring groove 2 12. The limiting groove 6 can facilitate the precise positioning of the limiting member, and as a guide for the limiting member, the installation process is smoother and more accurate, ensuring the position stability of the motor during operation, preventing the motor from moving when working, and avoiding damage to the motor or affecting the performance of the motor.

[0028] The annular groove 12 is provided with a protrusion 7, and the protrusion 7 is provided with a wiring port 8. The stability and reliability of the wiring port 8 are ensured, and the wiring of the motor is more convenient and flexible, the wiring process is simplified, the work efficiency is improved, and the maintenance of the motor is also facilitated, which is convenient for subsequent maintenance work.

[0029] The convex ring 28 is evenly provided with ear plates 16 in the circumferential direction, and the bottom of the ear plates 16 is smoothly inclined and transitioned with the annular groove 12. The ear plates 16 increase the structural strength and stability of the housing 1, reduce the deformation of the housing 1, and the ear plates 16 are evenly distributed along the circumference of the convex ring 28 to avoid stress concentration and local damage caused by uneven force, and also help to improve the overall stability and balance of the motor and reduce noise. The ear plates 16 can also serve as the installation interface between the motor and other parts, which is convenient for the installation and positioning of the motor, and also convenient for the staff to carry.

[0030] The ear plate 16 is provided with an embedding groove 18 with one end open, and a connecting hole 17 is provided through the embedding groove 18. The connecting hole 17 cooperates with fasteners such as bolts, so that the ear plate 16 can be firmly connected with other components, ensuring the stability and reliability of the motor, and the connection method is simple and fast, with high connection strength, and the embedding groove 18 with one end open can facilitate the installation of fasteners and improve assembly efficiency.

[0031] The motor shaft 2 is provided with a limit hole 14, and a latch 15 is provided through the limit hole 14. The presence of the latch 15 also strengthens the structural strength and stability of the motor shaft 2, and can also serve as an additional support and fixing device to disperse the stress on the motor shaft 2, prevent the motor shaft 2 from bending or deforming due to external force or vibration, ensure the long-term stable operation of the motor and improve its service life, and at the same time, it can also play a certain role in limiting the end cover 5 to prevent the end cover 5 from sliding off, and can also serve as a clamping piece for installation with other components.

[0032] A convex portion 4 is provided on the rear end of the housing 1, a groove 19 is formed between the convex portion 4 and the housing 1, and reinforcing ribs 20 are evenly distributed in the circumferential direction in the groove 19. The convex portion 4 further improves the structural strength of the motor, the groove 19 can reduce the overall weight of the housing 1, achieve lightweight, facilitate the handling of the staff and better operation of the motor, the reinforcing ribs 20 can enhance the structural strength and stability of the housing 1, can prevent the housing 1 from deformation or damage, and the circumferentially evenly distributed ensures that the housing 1 is subjected to force balance in all directions.

[0033] A placement groove 26 is provided at the rear end of the housing 1, and the placement groove 26 matches the bearing. This ensures that the position of the bearing in the motor is stable and accurate, thereby preventing operating failures or performance degradation caused by improper installation. Secondly, the bearing is a key rotating component in the motor, and its stable operation is crucial to the overall performance of the motor. By matching with the placement groove 26, the bearing can better withstand the load and vibration during the rotation process, reducing performance loss caused by friction or wear.

[0034] An extension part 21 is provided on the front end of the housing 1, an inner convex part 22 is provided on the end cover 5, and a mounting groove 23 is formed between the inner convex part 22 and the outer edge of the end cover 5, and the mounting groove 23 matches the extension part 21. Through the matching between the extension part 21 and the mounting groove 23, accurate positioning and installation between the housing 1 and the end cover 5 are achieved, and the assembly efficiency is improved. At the same time, the inner convex part 22 can also play a certain sealing role, effectively preventing external impurities such as dust and moisture from entering the interior of the motor, thereby protecting the motor from damage and failure, and facilitating the use of users.

[0035] The end cover 5 is also provided with an inner convex part 24, and a second mounting groove 25 is provided in the inner convex part 24, and the second mounting groove 25 matches the bearing. The accurate positioning and installation of the bearing are ensured, and the bearing can be stably installed in the housing 1, thereby improving the running stability and reliability of the motor. In addition, the installation position of the bearing in the motor can be optimized, and the bearing's load-bearing capacity and operating efficiency can be improved.

[0036] like Figure 7 and Figure 8 As shown, it is the second embodiment of the utility model, on the basis of the first embodiment, the housing 1 and the end cover 5 are improved, the end cover 5 is provided with an edge 9, the edge 9 is provided with a positioning hole 10, the housing 1 is provided with a threaded column 11, the positioning hole 10 matches the threaded column 11, and the nut 27 passes through the threaded column 11 and is locked and fitted with the edge 9 to achieve the fixation between the end cover 5 and the housing 1. It is convenient to achieve the fixation between the housing 1 and the end cover 5, and the installation operation is convenient, the connection is firm, and it is convenient to inspect the inside of the motor.

[0037] After the motor shaft 2 and the casing 1 are initially positioned, they are installed and fixed through the end cover 5 to ensure the stable placement of the internal components of the motor. After the end cover 5 and the casing 1 are installed, the pin 15 and the limiting through hole 14 are installed to prevent the end cover 5 from falling. The installation operation is simple, time-saving and labor-saving, and the labor intensity is low.

[0038] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An AC motor, comprising: chassis; A motor shaft, wherein a bearing is provided between the housing and the motor shaft; Features: An end cover is provided at the front end of the casing, and a convex ring is provided on the casing. The convex ring and the front end of the casing form a first ring groove, and the convex ring and the rear end of the casing form a second ring groove. The second ring groove is recessed inward to form a limiting groove, and the limiting grooves are evenly distributed along the circumference of the second ring groove.

2. An AC motor according to claim 1, characterized in that: A protrusion is arranged on the second ring groove, and a wiring port is arranged on the protrusion.

3. An AC motor according to claim 1, characterized in that: Ear plates are evenly arranged on the circumference of the convex ring, and the bottom of the ear plates is smoothly inclinedly transitioned to the annular groove.

4. An AC motor according to claim 3, characterized in that: The ear plate is provided with an embedding groove with an open end, and a connecting hole is penetrated in the embedding groove.

5. The AC motor according to claim 1, characterized in that: A limit through hole is arranged on the motor shaft, and a latch is arranged in the limit through hole.

6. The AC motor according to claim 1, characterized in that: A convex portion is arranged on the rear end of the housing, a groove is formed between the convex portion and the housing, and reinforced ribs are evenly distributed in the circumference of the groove.

7. The AC motor according to claim 1, characterized in that: A placement groove is arranged on the rear end inside the housing, and the placement groove matches the bearing.

8. The AC motor according to claim 1, characterized in that: An extension portion is arranged at the front end of the housing, an inner convex portion 1 is arranged on the end cover, a mounting groove 1 is formed between the inner convex portion 1 and the outer edge of the end cover, and the mounting groove 1 matches the extension portion.

9. The AC motor according to claim 1, characterized in that: A second inner convex portion is also provided in the end cover, and a second mounting groove is provided in the second inner convex portion, and the second mounting groove matches the bearing.

10. The AC motor according to claim 1, characterized in that: The end cover is provided with an edge, a positioning hole is provided on the edge, a threaded column is provided on the casing, the positioning hole matches the threaded column, and a nut passes through the threaded column and is locked and fitted with the edge to achieve fixed installation between the end cover and the casing.

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