High-rotating-speed motor structure
By first correcting the coaxiality of the rotor and the stator in the high-speed motor structure and then installing the bearing, the problem of difficult coaxiality of the traditional motor during installation is solved, and a higher service life and simpler Assembly process.
Patent Information
- Application Number
- CN202420893379.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-27
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-27
AI Technical Summary
During the installation process, the coaxiality of the stator and rotor is difficult to achieve, resulting in easy damage to the bearings and affecting the service life of the motor.
A high-speed motor structure is adopted, the rotor and stator are first assembled and the coaxiality is corrected, and then loaded into the bearing. The structure includes a stator, rotor, end cap and bearing, and self-correction is achieved through mounting holes and steps on the front and rear end caps.
The assembly process is simplified, high-precision coaxial correction of the stator and rotor is achieved, the bearing is protected, and the service life of the motor is extended.
Smart Images
Figure CN222441446U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a high-speed motor structure. Background Art
[0002] The traditional motor installation method is to first assemble the bearings at both ends on the rotor and then assemble them with the stator. Since the rotor surface has an extremely strong magnetic field, positioning is difficult. During the assembly process, the coaxiality of the stator and rotor cannot meet the requirements of high-speed motors. The bearings are easily damaged when used in this environment, which in turn affects the service life of the motor. The new installation method first assembles the rotor and stator, corrects the coaxiality, and then installs the bearings, which improves the coaxiality of the stator and rotor and protects the service life of the bearings. Utility Model Content
[0003] The utility model proposes a high-speed motor structure, comprising a stator, a rotor, an end cover and a bearing, wherein the end cover is provided with a front end cover and a rear end cover, the rotor is arranged at the center of the stator, the front end cover is provided with a front mounting hole, the rear end cover is provided with a rear mounting hole, the center lines of the front mounting hole and the rear mounting hole overlap, the rotor is respectively mounted on the front mounting hole and the rear mounting hole, a small gap is provided between the rear mounting hole and the rotor, and the entrance end of the rear mounting hole is provided with a chamfer.
[0004] In one or more embodiments, a front mounting enclosure extending toward the stator is provided on an outer edge of the front end cover, and a front mounting step is provided at the front end of the stator, and the front mounting step cooperates with the front mounting enclosure.
[0005] In one or more embodiments, a rear installation enclosure extending toward the stator is provided on an outer edge of the rear end cover, and a rear installation step is provided at the rear end of the stator, and the rear installation step cooperates with the rear installation enclosure.
[0006] In one or more embodiments, a mounting cavity is provided on the front end cover, a front double bearing is provided on the mounting cavity, and the front double bearing is sleeved on the front shaft of the rotor.
[0007] In one or more embodiments, an installation space is provided on the rear end cover, a rear double bearing is provided on the installation space, and the rear double bearing is sleeved on the rear shaft of the rotor.
[0008] The beneficial effects of the utility model are as follows: 1. The assembly process is simple and easy to understand, and no additional tooling calibration and coordination is required;
[0009] 2. The coaxiality of the stator and rotor is self-corrected during the assembly process;
[0010] 3. Protect bearings and extend bearing life;
[0011] It can effectively improve the coaxiality of the stator and the rotor, and does not require tooling correction and matching, and can be widely used in various permanent magnet rotor motors. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the high-speed motor structure. DETAILED DESCRIPTION
[0013] The present application scheme is further described as follows in conjunction with the accompanying drawings:
[0014] See attached Figure 1 A high-speed motor structure includes a stator 1, a rotor 2, an end cover and a bearing, wherein the end cover is provided with a front end cover 3 and a rear end cover 4, the rotor 2 is arranged at the center of the stator 1, the front end cover 3 is provided with a front mounting hole 31, the rear end cover 4 is provided with a rear mounting hole 41, the center lines of the front mounting hole 31 and the rear mounting hole 41 overlap, the rotor 2 is respectively mounted on the front mounting hole 31 and the rear mounting hole 41, a small gap 42 is provided between the rear mounting hole 41 and the rotor 2, and a chamfer 43 is provided at the entrance end of the rear mounting hole 41.
[0015] Preferably, the bearings include a front double bearing 5 and a rear double bearing 6 .
[0016] Furthermore, a front mounting enclosure 32 extending toward the stator 1 is provided on the outer edge of the front end cover 3 , and a front mounting step 11 is provided at the front end of the stator 1 , and the front mounting step 11 cooperates with the front mounting enclosure 32 .
[0017] Furthermore, a rear installation enclosure 44 extending toward the stator 1 is provided on the outer edge of the rear end cover 4 , and a rear installation step 12 is provided at the rear end of the stator 1 , and the rear installation step 12 cooperates with the rear installation enclosure 44 .
[0018] Furthermore, a mounting cavity is provided on the front end cover 3 , a front double bearing 5 is provided on the mounting cavity, and the front double bearing 5 is sleeved on the front shaft of the rotor 2 .
[0019] Furthermore, an installation space is provided on the rear end cover 4, a rear double bearing 6 is provided on the installation space, and the rear double bearing 6 is sleeved on the rear shaft of the rotor.
[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0025] The above-mentioned preferred implementation modes should be regarded as illustrative examples of the implementation modes of the present application scheme. Any technical deductions, replacements, improvements, etc. that are identical or similar to the present application scheme or made based on this scheme should be regarded as within the scope of protection of this patent.
Claims
1. A high speed motor structure, characterized in that: The invention comprises a stator, a rotor, an end cover and a bearing, wherein the end cover is provided with a front end cover and a rear end cover, the rotor is arranged at the center of the stator, the front end cover is provided with a front mounting hole, the rear end cover is provided with a rear mounting hole, the center lines of the front mounting hole and the rear mounting hole overlap, the rotor is respectively mounted on the front mounting hole and the rear mounting hole, a small gap is provided between the rear mounting hole and the rotor, and the entrance end of the rear mounting hole is provided with a chamfer.
2. The high speed motor structure according to claim 1, characterized in that: A front mounting enclosure extending toward the stator is arranged on the outer edge of the front end cover, and a front mounting step is arranged at the front end of the stator, and the front mounting step cooperates with the front mounting enclosure.
3. The high speed motor structure according to claim 1 or 2, characterized in that: A rear installation enclosure extending toward the stator is arranged on the outer edge of the rear end cover, and a rear installation step is arranged at the rear end of the stator, and the rear installation step cooperates with the rear installation enclosure.
4. The high speed motor structure according to claim 1, characterized in that: The front end cover is provided with a mounting cavity, the mounting cavity is provided with a front double bearing, and the front double bearing is sleeved on the front shaft of the rotor.
5. The high speed motor structure according to claim 1, characterized in that: The rear end cover is provided with an installation space, the installation space is provided with a rear double bearing, and the rear double bearing is sleeved on the rear shaft of the rotor.