Adjustable press-fitting tire for assembling small motor

Abstract

The utility model discloses an adjustable press-fitting tire for assembling a small motor, and belongs to the technical field of motor assembling. The device comprises a base, a circular sleeve body and a lifting assembly, the base comprises the circular sleeve body, and one end of the circular sleeve body is sealed; the supporting sleeve is arranged in the circular sleeve body in a surrounding manner, one end of the supporting sleeve extends to the outside of the circular sleeve body to form a press-fitting part, and the other end of the supporting sleeve is relatively closed to form a closed end; the lifting assembly comprises a stud and a limiting unit, the end of the stud is fixedly connected with the circular sleeve body and is coaxial with the central axis of the circular sleeve body, the closed end of the supporting sleeve is in threaded connection with the stud, and the supporting sleeve can be spirally fed; the limiting unit is arranged between the supporting sleeve and the circular sleeve body so as to prevent the supporting sleeve from rotating relatively. According to the utility model, the in-shell depth of the press-fitting tire can be adjusted, and one press-fitting tire can be used for assembling motors with different in-shell size requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of motor assembly, in particular to an adjustable pressure mounting tire for small motor assembly. Background Art

[0002] When assembling motor components, the stator core, stator winding and other components inside the motor must be installed into the motor housing. In particular, the stator core is generally pressed into the motor housing using a press tire.

[0003] However, depending on the motor design, the depth of the stator core inserted into the shell will also be different. Due to the diversity of the motor shell entry sizes, a large number of press-fit tires need to be produced according to different shell entry sizes, resulting in a large number of press-fit tires, taking up a large space, and being inconvenient to find. Utility Model Content

[0004] In view of this, it is necessary to provide an adjustable press-fit tire for assembling a small motor, so as to solve the problem that the insertion depth of the existing press-fit tire is fixed and the demand for different press-fit tires is large.

[0005] The utility model provides a pressure-adjustable tire for assembling a small motor, comprising:

[0006] A base, the base comprising a circular sleeve, one end of the circular sleeve being sealed;

[0007] A support sleeve is enclosed and disposed within the circular sleeve, one end of the support sleeve extends to the outside of the circular sleeve to form a press-fit portion, and the other end of the support sleeve is relatively closed to form a closed end;

[0008] A lifting assembly includes a stud and a limiting unit. The end of the stud is fixedly connected to the circular sleeve and is coaxially arranged with the central axis of the circular sleeve. The closed end of the support sleeve is threadedly connected to the stud, and the support sleeve can be spirally fed. The limiting unit is arranged between the support sleeve and the circular sleeve to prevent the support sleeve from rotating relative to each other.

[0009] Furthermore, a plurality of grooves adapted to the stator are formed at the end of the press-fitting portion, and the plurality of grooves are equidistantly arranged around the central axis of the support sleeve.

[0010] Furthermore, the limiting unit includes a screw hole and a screw-on component opened on the supporting sleeve. The screw-on component is threadedly connected to the screw hole, and an end portion of the screw-on component abuts against the circular sleeve through the supporting sleeve.

[0011] Furthermore, the limiting unit also includes a reinforcement ring, which is enclosed and arranged inside the supporting sleeve. The reinforcement ring is integrally connected to the supporting sleeve, and the screw hole is opened on the reinforcement ring.

[0012] Furthermore, a closing plate is provided at the closed end, the closing plate is integrally connected to the supporting sleeve, and a threaded cylinder that cooperates with the stud is provided on the closing plate.

[0013] Furthermore, a plurality of hollow holes are arranged at intervals on the closed plate body, and the plurality of hollow holes are arranged at equal distances relative to the central axis of the closed plate body.

[0014] Furthermore, the support sleeve is provided with a length scale, and the length scale is arranged along the axial direction of the support sleeve.

[0015] Furthermore, the end of the circular sleeve away from the sealing opening is provided with a platform for abutting against the outer shell.

[0016] Furthermore, a weight-reducing groove is provided on one side of the circular sleeve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The utility model provides an adjustable pressure-fitting tire for assembling a small motor, which is provided with a lifting assembly, the lifting assembly including a stud and a limit unit, the end of the stud is fixedly connected to the circular sleeve, the stud and the central axis of the circular sleeve are coaxially arranged, the end of the support sleeve away from the pressing part is relatively closed to form a closed end, the closed end of the support sleeve is threadedly connected to the stud, and the support sleeve can be fed relative to the stud by rotating the support sleeve, thereby changing the extension distance of the pressing part, thereby adjusting the shell insertion depth of the press-fitting tire, expanding the application range of the press-fitting tire, and a single adjustable pressure-fitting tire can replace multiple fixed press-fitting tires, reducing the number of press-fitting tires, saving storage space, and eliminating the need to search for the press-fitting tires.

[0019] (2) The utility model provides an adjustable press-fit tire for assembling a small motor, which is provided with a limiting unit. The limiting unit is provided between the supporting sleeve and the circular sleeve. The limiting unit can lock the supporting sleeve and the circular sleeve, thereby preventing the supporting sleeve from rotating relative to each other, keeping the size of the press-fit portion of the supporting sleeve fixed after adjustment, and preventing the supporting sleeve from loosening or deflecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the support sleeve in the utility model Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the structure of the support sleeve in the utility model Figure 2 ;

[0024] Figure 4 It is a structural diagram of the base in the utility model;

[0025] In the figure, 100, base; 110, circular sleeve; 120, platform; 130, weight reduction groove;

[0026] 200, support sleeve; 210, groove; 220, closing plate; 221, hollow hole; 230, threaded cylinder; 240, length scale;

[0027] 300, lifting assembly; 310, stud; 320, limiting unit; 321, screw hole; 322, screw-on part; 333, reinforcement ring. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0029] In this embodiment, an adjustable press-fitting tire for assembling a small motor is provided, which is provided with a circular sleeve 110 and a support sleeve 200 that are nested with each other. The support sleeve 200 can be rotated and fed using a stud 310, so as to adjust the depth of the press-fitting tire into the shell. A single press-fitting tire can be used to assemble motors with different shell entry size requirements.

[0030] See also Figures 1 to 4 In this embodiment, a small motor assembly with an adjustable pressure tire includes a base 100, a circular sleeve 110 and a lifting assembly 300. The base 100 includes the circular sleeve 110, and one end of the circular sleeve 110 is sealed to form a space for accommodating a support sleeve 200.

[0031] The support sleeve 200 is enclosed in the circular sleeve 110, and a certain gap is maintained between the support sleeve 200 and the circular sleeve 110. One end of the support sleeve 200 extends to the outside of the circular sleeve 110 to form a press-fitting portion, which can press the stator core into the motor housing.

[0032] The lifting assembly 300 includes a stud 310 and a limiting unit 320. The end of the stud 310 is fixedly connected to the circular sleeve 110. The stud 310 is coaxially arranged with the central axis of the circular sleeve 110. The end of the support sleeve 200 away from the pressing part is relatively closed to form a closed end. The closed end of the support sleeve 200 is threadedly connected to the stud 310. By rotating the support sleeve 200, the support sleeve 200 can be fed relative to the stud 310, changing the extension distance of the pressing part, thereby adjusting the depth of the press-fitting tire into the shell, expanding the application range of the press-fitting tire. A single adjustable press-fitting tire can replace multiple fixed press-fitting tires, reducing the number of press-fitting tires, saving storage space, and eliminating the need to search for press-fitting tires.

[0033] The limiting unit 320 is arranged between the support sleeve 200 and the circular sleeve 110. The limiting unit 320 can lock the support sleeve 200 and the circular sleeve 110, hinder the relative rotation of the support sleeve 200, keep the size of the press-fitting part of the support sleeve 200 fixed after adjustment, and prevent the support sleeve 200 from loosening or deflecting.

[0034] In some embodiments, see Figure 1 and Figure 2 The end of the press-fitting portion is provided with multiple grooves 210 adapted to the stator. These grooves 210 mate with the stator core, better securing and positioning the stator core during press-fitting, preventing it from tilting or shifting. The multiple grooves 210 are evenly spaced, ensuring uniform force on the stator core during press-fitting, improving press-fitting accuracy and stability. The even distribution of grooves 210 reduces stress concentration on the stator core, extending its service life.

[0035] In some embodiments, see Figure 1 、 Figure 2 and Figure 4 The limiting unit 320 includes a screw hole 321 and a screw-on component 322 opened on the support sleeve 200. The screw-on component 322 is a bolt or a screw. By abutting the end of the screw-on component 322 against the circular sleeve 110, the support sleeve 200 can be effectively prevented from relative rotation during the fixing process, thereby ensuring the stability of the support sleeve 200.

[0036] During the specific implementation process, after the support sleeve 200 is adjusted to a suitable position, it is quickly locked by the screw-on member 322, which reduces the time for adjustment and fixing and improves work efficiency.

[0037] There are at least two screw-on connectors 322, equidistant from the central axis of the support sleeve 200. The equidistant arrangement of at least two screw-on connectors 322 provides multi-point fixation, enhancing the stability of the support sleeve 200 during press-fitting and preventing tilting or instability associated with single-point fixation. The equidistant arrangement of the screw-on connectors 322 evenly distributes pressure, ensuring uniform force on the support sleeve 200 throughout the press-fitting process and reducing the effects of eccentric forces and uneven pressure on the device.

[0038] The multiple equidistantly arranged rotating parts 322 work together to greatly improve the torsion resistance of the device, ensuring that the support sleeve 200 does not undergo torsional deformation during the adjustment process.

[0039] In some embodiments, see Figure 2 and Figure 3 The limiting unit 320 also includes a reinforcement ring 333, which is enclosed within the support sleeve 200 and integrally connected to the support sleeve 200. This significantly increases the overall structural strength and rigidity of the support sleeve 200, preventing deformation of the support sleeve 200 under load. The presence of the reinforcement ring 333 enhances the support sleeve 200's resistance to bending and torsion, making it more stable and reliable during the press-fitting process.

[0040] The screw hole 321 is formed on the reinforcing ring 333 , which provides a stronger and more stable foundation for the screw hole 321 , making the screw connector 322 more firmly fixed and preventing the screw hole 321 from loosening or the screw connector 322 from failing due to insufficient material strength.

[0041] In some embodiments, a closing plate 220 is provided at the closed end. This is integrally connected to the support sleeve 200, increasing the overall strength and rigidity of the assembly, ensuring that the structure does not loosen or deform during stress and operation. Furthermore, the closing plate 220 and support sleeve 200 can jointly withstand pressure when subjected to stress, enhancing overall stability and durability.

[0042] The closing plate 220 is provided with a threaded barrel 230 that mates with the stud 310. This arrangement allows the support sleeve 200 to perform a stable spiral feed motion. The threaded barrel 230 provides a precise and robust threaded connection, enhancing stability and precision during adjustment. The provision of the threaded barrel 230 prevents loosening and slipping between the stud 310 and the support sleeve 200 during adjustment, ensuring precise adjustment.

[0043] In the specific implementation process, the threaded barrel 230 is a cylindrical body, the end of the cylindrical body is integrally connected to the closed plate body 220 and communicated with the outside world, and the interior of the cylindrical body is provided with a thread adapted to the threaded barrel 230 .

[0044] In some embodiments, see Figure 3 The closing plate 220 is provided with a plurality of hollow holes 221 at intervals. These holes 221 effectively reduce the weight of the entire support sleeve 200, reducing the overall weight of the device and improving operational convenience and flexibility. The lighter weight makes the device easier to operate and adjust manually, reducing the operator's labor intensity and improving work efficiency.

[0045] Multiple hollow holes 221 are equidistantly positioned relative to the central axis of the closed plate 220, effectively dispersing stress on the closed plate 220, preventing stress concentration and reducing the risk of structural fatigue and fracture. By rationally designing the shape and position of the hollow holes 221, the rigidity of the closed plate 220 can be maintained or enhanced while reducing weight, ensuring that it resists deformation under stress.

[0046] In some embodiments, the support sleeve 200 is provided with a length scale 240, which is arranged along the axial direction of the support sleeve 200. The length scale 240 provides an intuitive reading interface, allowing the operator to clearly see the current position of the support sleeve 200, thereby precisely adjusting the height of the support sleeve 200 and adjusting the housing insertion size. During specific implementation, the operator can accurately adjust the support sleeve 200 to the desired position through the scale indication, ensuring that the depth of the stator core inserted into the motor housing meets the design requirements. This can adapt to a variety of different motor design requirements and enhance the versatility and adaptability of the device.

[0047] In practice, the end of the circular sleeve 110, away from the seal, is provided with a platform 120 for contact with the motor housing. Platform 120 can directly contact the motor housing, and the portion of the support sleeve 200 that extends beyond platform 120 serves as the press-fit portion. Platform 120 serves as a positional reference for the length scale 240, allowing the extended length of the support sleeve 200 to be read, representing the actual insertion depth into the housing.

[0048] In some embodiments, a weight-reducing groove 130 is provided on one side of the circular sleeve 110. The provision of the weight-reducing groove 130 can reduce the weight of the circular sleeve 110, improve the convenience and flexibility of operation, facilitate manual operation and adjustment by operators, and reduce labor intensity. Furthermore, the weight-reducing groove 130 can also provide a fulcrum for machines and manual labor, facilitating the lifting and movement of the circular sleeve 110.

[0049] Workflow: First, determine the shell size of a certain type of motor. Then, loosen the screw-on connector 322 to make the support sleeve 200 relatively loose, drive the circular sleeve 110 to rotate and feed relative to the stud 310, so that the reading of the length scale 240 is consistent with the shell size, and tighten the screw-on connector 322. Finally, install the press-fit tire on the corresponding equipment, and press the stator core, stator winding and other components into the motor housing. By changing the extension distance of the press-fit part, the shell entry depth of the press-fit tire can be adjusted, which expands the scope of application of the press-fit tire. A single adjustable press-fit tire can replace multiple fixed press-fit tires, reducing the number of press-fit tires, saving storage space, and eliminating the need to search for press-fit tires.

[0050] The above description is only a preferred specific implementation of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the present invention.

Claims

1. A small motor assembly with adjustable pressure tire, characterized in that: include: A base, the base comprising a circular sleeve, one end of which is sealed; A support sleeve is enclosed and disposed within the circular sleeve, one end of the support sleeve extends to the outside of the circular sleeve to form a press-fit portion, and the other end of the support sleeve is relatively closed to form a closed end; A lifting assembly includes a stud and a limiting unit. The end of the stud is fixedly connected to the circular sleeve and is coaxially arranged with the central axis of the circular sleeve. The closed end of the support sleeve is threadedly connected to the stud, and the support sleeve can be spirally fed. The limiting unit is arranged between the support sleeve and the circular sleeve to prevent the support sleeve from rotating relative to each other.

2. The adjustable pressure tire for assembling a small motor according to claim 1, characterized in that: The end of the press-fitting portion is provided with a plurality of grooves adapted to the stator, and the plurality of grooves are equidistantly arranged around the central axis of the supporting sleeve.

3. The pressure-adjustable tire for assembling a small motor according to claim 1, characterized in that: The limiting unit includes a screw hole and a screw-on component formed on the supporting sleeve. The screw-on component is threadedly connected to the screw hole. An end portion of the screw-on component abuts against the circular sleeve through the supporting sleeve.

4. The pressure-adjustable tire for assembling a small motor according to claim 3, characterized in that: The limiting unit further includes a reinforcement ring, which is enclosed and arranged inside the supporting sleeve. The reinforcement ring is integrally connected to the supporting sleeve, and the screw hole is opened on the reinforcement ring.

5. The pressure-adjustable tire for assembling a small motor according to claim 1, characterized in that: A closing plate is provided at the closed end, the closing plate is integrally connected with the supporting sleeve, and a threaded cylinder matched with the stud is provided on the closing plate.

6. The pressure-adjustable tire for assembling a small motor according to claim 5, characterized in that: A plurality of hollow holes are arranged at intervals on the closed plate body, and the plurality of hollow holes are arranged equidistantly relative to the central axis of the closed plate body.

7. The pressure-adjustable tire for assembling a small motor according to claim 1, characterized in that: The support sleeve is provided with a length scale, and the length scale is arranged along the axial direction of the support sleeve.

8. The pressure-adjustable tire for assembling a small motor according to claim 1, characterized in that: One end of the circular sleeve away from the sealing opening is provided with a platform for abutting against the outer shell.

9. The pressure-adjustable tire for assembling a small motor according to claim 1, characterized in that: A weight-reducing groove is provided on one side of the circular sleeve.

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