A general-purpose motor rotor support structure

Abstract

The utility model relates to motor technical field, this general motor rotor support structure, this support structure is used to install motor's rotor, stator and axle core, and the support structure includes casing, upper cover, lower cover, gasket, two bearings and screw, the upper cover and lower cover are arranged at the front end and rear end of casing respectively, two bearings are arranged in the upper cover and lower cover, are connected with axle core, the gasket is arranged at the bottom of lower bearing, and is placed in the lower cover, and the screw is fixed from the upper cover and is arranged in the rear cover. This general motor rotor support structure can satisfy the use demand of brushless motor and carbon brush motor, when needing to use brushless motor, installs the brushless stator rotor in this motor support structure, when needing to use carbon brush motor, installs the carbon brush stator rotor in this motor support structure, guarantees that can switch flexibly according to the demand of customer.

Description

Technical Field

[0001] This utility model relates to the field of DC motor technology, and in particular to a general-purpose motor rotor support structure. Background Technology

[0002] The motor rotor bracket is a structure used to mount and support the rotor and stator. Because the rotor and stator structures of brushed motors and brushless motors differ, the motor bracket structures used in their production design differ. For example, when customers are dissatisfied with the performance, functionality, and lifespan of brushed motors, they require brushless motors to meet their needs. However, with the same external dimensions, the following problems may arise:

[0003] 1. Performance cannot meet customer needs;

[0004] 2. The complexity of the materials will increase labor costs and material preparation costs;

[0005] 3. Incompatibility between the stator / rotor and the machine housing can lead to low production efficiency and increased defect rate;

[0006] Therefore, there is an urgent need for a universal motor rotor support structure to solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to provide a universal motor rotor support structure to solve the technical problem that the motor supports of existing brushless motors and carbon brush motors are not interchangeable.

[0008] This utility model discloses a general-purpose motor rotor support structure for mounting the rotor, stator, and shaft of a motor. The support structure includes a housing, an upper cover, a lower cover, a gasket, two bearings, and screws. The upper cover and lower cover are respectively located at the front and rear ends of the housing. The two bearings are located inside the upper and lower covers and connected to the shaft. The gasket is located at the bottom of the lower bearing and placed inside the lower cover. The screws pass through the upper cover and are fixed inside the rear cover.

[0009] Preferably, the inner side of the lower cover is provided with a groove for mounting gaskets and bearings, and the two sides are provided with screw holes for connecting screws.

[0010] Preferably, the gasket is a corrugated gasket.

[0011] Preferably, the stator has a through hole for the screw to pass through, and the screw has an external thread on its lower outer wall surface.

[0012] Preferably, the shaft is connected to two bearings via two retaining rings.

[0013] Preferably, the top cover and the gearbox housing are an integral structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This general-purpose motor rotor support structure mainly includes a housing, an upper cover, a lower cover, gaskets, two bearings, and screws. The upper and lower covers are respectively located at the front and rear ends of the housing. The two bearings are respectively located inside the upper and lower covers and connected to the shaft core. The gaskets are located at the bottom of the bearings on the lower cover, serving to dampen shocks and protect the shaft core, while also preventing impact from damaging the motor. The screws are all-in-one screws, which, during installation, pass through the upper cover into the stator and then into the lower cover to secure the upper and lower covers, thus providing a fastening function.

[0016] This universal motor rotor support structure can meet the needs of both brushless and brushed motors. When a brushless motor is required, the brushless stator and rotor can be installed in the motor support structure; when a brushed motor is required, the brushed stator and rotor can be installed in the motor support structure, ensuring flexible switching according to customer needs. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of the split structure of an embodiment of a general-purpose motor rotor support structure for a brushless motor according to this utility model;

[0019] Figure 2 This is a front view schematic diagram of an embodiment of a general-purpose motor rotor support structure according to this utility model;

[0020] Figure 3 yes Figure 2 Cross-sectional view of AA;

[0021] Figure 4 This is a front view schematic diagram of another embodiment of the general-purpose motor rotor support structure of this utility model for carbon brush motor;

[0022] Figure 5 yes Figure 4 Cross-sectional view of BB.

[0023] In the diagram: 1. Housing; 2. Top cover; 3. Bottom cover; 4. Gasket; 5. Bearing; 6. Screw; 61. External thread; 7. Rotor; 8. Stator; 9. Shaft core; 91. Snap ring groove; 10. Groove; 11. Screw hole; 12. Through hole; 13. Snap ring; 14. Gearbox housing. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] like Figure 1-5 As shown, this utility model discloses a general-purpose motor rotor 7 support structure. This support structure is used to install the motor rotor 7, stator 8, and shaft core 9. The support structure includes a housing 1, an upper cover 2, a lower cover 3, a gasket 4, two bearings 5, and a screw 6. The upper cover 2 and the lower cover 3 are respectively located at the front and rear ends of the housing 1. The two bearings 5 ​​are located inside the upper cover 2 and the lower cover 3 and are connected to the shaft core 9. The gasket 4 is located at the bottom of the lower bearing 5 and is placed inside the lower cover 3. The screw 6 passes through the upper cover 2 and is fixed inside the rear cover.

[0026] This utility model provides a universal motor rotor support structure that can meet the needs of both brushless motors and brushed motors. When a brushless motor is required, the brushless stator and rotor can be installed in the motor support structure; when a brushed motor is required, the brushed stator and rotor can be installed in the motor support structure, ensuring flexible switching according to customer needs.

[0027] Specifically, the bracket structure mainly includes a housing 1, an upper cover 2, a lower cover 3, a gasket 4, two bearings 5, and screws 6. The upper cover 2 and the lower cover 3 are respectively located at the front and rear ends of the housing 1. The two bearings 5 ​​are respectively located inside the upper cover 2 and the lower cover 3 and connected to the shaft core 9. During use, the stator 8 generates a rotating magnetic field, and the rotor 7 converts the input electrical energy into mechanical energy to drive the shaft core 9 to rotate. The gasket 4 is located at the bottom of the bearing 5 on the lower cover 3, which plays a role in shock absorption and buffering, protecting the shaft core 9, and at the same time avoiding impact forces that could damage the motor. The screws 6 are all-machine screws. During installation, they pass through the upper cover 2 into the stator 8 and then into the lower cover 3 to fix the upper and lower covers 3, thus providing a fastening function.

[0028] In a preferred embodiment, refer to Figure 1-5 The lower cover 3 of the universal motor rotor 7 support structure has grooves 10 on the inner side for mounting gaskets 4 and bearings 5, and screw holes 11 on both sides for connecting screws 6. The gaskets 4 are corrugated gaskets. The stator 8 has through holes 12 for screws 6 to pass through, and the lower outer wall of the screws 6 has external threads. The shaft core 9 is connected to the two bearings 5 ​​by two retaining rings 13. The upper cover 2 and the gearbox housing 14 are an integral structure.

[0029] Specifically, the inner side of the lower cover 3 is provided with a groove 10 for mounting the gasket 4 and the bearing 5. The end of the shaft core 9 is connected to the bearing 5 to ensure that the shaft core 9 and the bearing 5 are not misaligned after installation, thus playing a limiting role. By providing a screw hole 11 on the lower cover 3 for the lower end of the screw 6 to pass through, it is ensured that the screw 6 can fix the upper cover 2 and the lower cover 3, which is convenient for installation and disassembly. The upper part of the screw 6 is a smooth surface, and the lower part is a threaded surface. During installation, the lower threaded surface is screwed into the screw hole 11. A retaining ring 13 is provided at the connection position between the shaft core 9 and the bearing 5. The retaining ring 13 is locked in the annular groove 91 of the shaft core 9 and is connected to the inner ring of the bearing 5, thus limiting the installation position of the bearing 5. The upper cover 2 and the gearbox housing 14 are set as an integral structure. The upper cover 2 is located below the gearbox housing 14. During installation, the upper end of the shaft core 9 inside the motor is inserted into the gearbox, driving the gears and output shaft inside the gearbox to rotate, thus achieving the effect of speed reduction transmission.

[0030] The motor rotor 7 support structure of this utility model also has the following characteristics:

[0031] 1. This structure allows for flexible switching between brushless and brushed motors without altering the motor's external dimensions, based on customer needs.

[0032] 2. By simply changing the mechanism of the stator and rotor 7 parts of the motor, the characteristics of the motor can be changed, which enhances the versatility of the motor and the consistency of its appearance. Since only the internal stator and rotor 7 need to be changed, and the external dimensions are common components, the consistency of the external dimensions is guaranteed.

[0033] 3. In terms of motor materials, the cost of material preparation has been reduced, the consistency of materials has been enhanced, and the complicated material classification has been reduced. The consistency of materials is reflected in the fact that the characteristics of the motor's carbon brushes and brushless motors can be changed simply by changing the stator and rotor 7 of the carbon brushes and brushless motors.

[0034] 4. This bracket structure also enables the versatility of the motor.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A general-purpose motor rotor support structure, used for mounting the rotor, stator, and shaft of a motor, characterized in that: The bracket structure includes a housing, an upper cover, a lower cover, a gasket, two bearings, and screws. The upper cover and the lower cover are respectively located at the front and rear ends of the housing. The two bearings are located inside the upper cover and the lower cover and are connected to the shaft core. The gasket is located at the bottom of the lower bearing and is placed inside the lower cover. The screw passes through the upper cover and is fixed inside the rear cover.

2. The general-purpose motor rotor support structure as described in claim 1, characterized in that, The inner side of the lower cover is provided with grooves for mounting gaskets and bearings, and the two sides are provided with screw holes for connecting screws.

3. The general-purpose motor rotor support structure as described in claim 1, characterized in that, The gasket is a corrugated gasket.

4. The general-purpose motor rotor support structure as described in claim 1, characterized in that, The stator has a through hole for the screw to pass through, and the screw has an external thread on its lower outer wall surface.

5. The general-purpose motor rotor support structure as described in claim 1, characterized in that, The shaft core is connected to two bearings via two retaining rings.

6. The general-purpose motor rotor support structure as described in claim 1, characterized in that, The top cover and the gearbox housing are an integral structure.

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