Disc type motor rotor structure
Through the split sheath structure and bolt fixation, the problem of difficult assembly and poor stability of the rotor structure of the disc motor is solved, and a more uniform stress and higher strength effect is achieved.
Patent Information
- Application Number
- CN202422580338.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-24
AI Technical Summary
The sheath of the existing disc motor rotor structure is an integral ring structure, with high assembly difficulty, high accuracy requirements, and poor stability during high-speed rotation.
A split sheath structure is adopted, and a ring is composed of multiple arcuate segments. Each arcuate segment has a counter hole corresponding to the threaded hole of the support part, and is fixed by bolts. The arcuate segment adopts a bevel structure to combine with each other to enhance stability.
It achieves more uniform stress and higher strength, simplifies the assembly process, and ensures accuracy and stability.
Smart Images
Figure CN223297427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor rotors, in particular to a disc-type motor rotor structure. Background Art
[0002] Disc motors feature small size and light weight, high power density, and a short axial dimension, making them suitable for most thin-profile installations. Disc motor rotors typically consist of a rotor disc, magnets, and a sheath, which wraps around the rotor disc. Existing sheaths are monolithic ring-shaped and secured to the rotor disc using a sleeve-type assembly method. This assembly method is difficult, requires high precision, and offers limited stability when the rotor disc is heated and rotates at high speeds. Utility Model Content
[0003] The purpose of the utility model is to provide a disc motor rotor structure to address the defects and shortcomings of the prior art.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a disc motor rotor structure, including a rotor disc, and its innovation lies in: the rotor disc includes a base and multiple support parts, the support parts are arranged in a ring array with the base as the center, threaded holes are provided on the end faces of the support parts, and magnetic steel mounting grooves are provided between the support parts. Magnets are placed in the magnetic steel mounting grooves, and a sheath is provided on the outside of the rotor disc. The sheath is a split structure, consisting of a circular ring composed of multiple arc segments, and a countersunk hole is provided on the outside of each arc segment, and the countersunk hole corresponds to the threaded hole of the support part and is fixed with bolts.
[0005] Furthermore, the left and right sides of the arc segment are inclined structures, and when the arc segments are assembled and installed together, the arc segments are obliquely stacked into a ring.
[0006] After adopting the above structure, the beneficial effects of the utility model are:
[0007] The utility model provides a sheath with a split structure and fixes it with bolts, so the force is more uniform, the strength is better, and the assembly is simpler. The split sheath can be cut obliquely into multiple small sections after processing the overall circular sheath, which is convenient for processing and can ensure accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural diagram of the utility model;
[0009] Figure 2 This is a schematic diagram of the structure of the utility model after disassembly.
[0010] Description of reference numerals:
[0011] 1 rotor disk, 11 base, 12 support portion, 13 magnetic steel mounting groove, 14 threaded hole, 2 sleeve, 21 arc segment, 22 countersunk hole. DETAILED DESCRIPTION
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0014] See Figure 1-2 A disc-type motor rotor structure includes a rotor disk 1. The rotor disk 1 includes a base 11 and a plurality of support parts 12. The support parts 12 are arranged in a circular array with the base 11 as the center. Threaded holes 14 are provided on the end faces of the support parts 11. Magnet mounting grooves 13 are provided between the support parts 11. Magnets are placed in the magnet mounting grooves 13. A sleeve 2 is provided on the outside of the rotor disk 1. The sleeve 2 is a split structure, consisting of a circular ring composed of a plurality of arc segments 21. A countersunk hole 22 is provided on the outside of each arc segment 21. The countersunk hole 22 corresponds to the threaded hole 14 of the support part and is fixed with bolts. Specifically, the sleeve 2 is composed of a plurality of arc segments 21, and the threaded holes and the countersunk holes correspond to each other. The sleeve 2 is fixed with bolts, which makes the force more uniform and the strength better. The split sleeve can be cut obliquely into a plurality of small segments after processing the integral circular sleeve, which is convenient for processing and can ensure accuracy.
[0015] In this embodiment, the left and right sides of the arc segment 21 are inclined structures. When the arc segments are assembled and installed, the arc segments are stacked obliquely to form a ring. The inclined structure allows them to be stacked and pressed against each other during assembly, thereby further improving stability.
[0016] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims
1. A disc motor rotor structure, comprising a rotor disc, characterized in that: The rotor disk includes a base and multiple support parts. The support parts are arranged in a ring array with the base as the center. Threaded holes are provided on the end faces of the support parts. Magnet mounting grooves are provided between the support parts. Magnets are placed in the magnet mounting grooves. A sleeve is provided on the outside of the rotor disk. The sleeve is a split structure, consisting of a circular ring composed of multiple arc segments, and a countersunk hole is provided on the outside of each arc segment. The countersunk hole corresponds to the threaded hole of the support part and is fixed with bolts.
2. The disc motor rotor structure according to claim 1, characterized in that: The left and right sides of the arc segment are inclined structures. When the arc segments are assembled and installed, the arc segments are obliquely stacked into a ring.