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CN-224233413-U - Rotor with tolerance ring

CN224233413UCN 224233413 UCN224233413 UCN 224233413UCN-224233413-U

Abstract

The utility model provides a rotor with a tolerance ring, and belongs to the technical field of water pump manufacturing. The novel rotor solves the problems that the joint gap between the existing rotor and the bearing seat is easy to thermally expand and damage and the like. The rotor with the tolerance ring comprises a rotor body and a bearing seat, wherein a tolerance ring assembly is arranged between a rotor pump body and the bearing seat. The utility model has the advantages of good thermal expansion resistance and the like.

Inventors

  • CHEN DIANJUN
  • ZHANG JUNJIE
  • JIANG CHENG
  • CHEN YIWEN
  • WU PEIXIANG

Assignees

  • 浙江泰福泵业股份有限公司

Dates

Publication Date
20260512
Application Date
20250305

Claims (6)

  1. 1. A rotor with a tolerance ring, characterized by comprising a rotor body (1) and a bearing housing (2), between which rotor body and bearing housing (2) a tolerance ring assembly (3) is arranged.
  2. 2. A rotor with tolerance ring according to claim 1, characterized in that the tolerance ring assembly (3) comprises two support rings (4) and a side wall (5), the side wall (5) being used for connecting the two support rings (4).
  3. 3. A rotor with a tolerance ring according to claim 2, characterized in that the side wall (5) is wave-shaped.
  4. 4. A rotor with a tolerance ring according to claim 3, characterized in that the side wall (5) comprises a plurality of alternating peaks (6) and valleys (7), the peaks (6) and valleys (7) extending in the axial direction of the side wall (5).
  5. 5. A rotor with a tolerance ring according to claim 4, characterized in that a transition section (8) is provided between the peaks (6) and the valleys (7).
  6. 6. A rotor with tolerance ring according to claim 5, characterized in that the peaks (6), transitions (8), valleys (7) are integrally connected.

Description

Rotor with tolerance ring Technical Field The utility model belongs to the technical field of water pump manufacturing, and particularly relates to a rotor with a tolerance ring. Background In the production process of the motor, in order to ensure the fit between the bearing seat and the rotor, a gap is reserved between the bearing seat and the rotor, and meanwhile, in order to take thermal expansion into consideration, the bearing can generate heat in the working process, so that the temperature of the bearing and the shaft is increased and expanded. The reserved gap can prevent the bearing from being blocked or damaged due to thermal expansion, the accurate gap process is required to be ensured to be higher, certain difficulty is brought to manufacture of factories, the running accuracy of a rotor is reduced due to the fact that the gap is larger, vibration is increased, energy loss is caused, bearing abrasion is aggravated, service life is influenced, poor lubrication is caused due to the fact that the gap is too small, a large amount of heat is generated, thermal damage of the bearing is easily caused, the lubricant is difficult to form an effective oil film on the friction surface due to the fact that the gap is too large, heat dissipation is poor, and the risk of thermal damage is also caused. Disclosure of utility model The object of the present utility model is to address the above-mentioned problems with the prior art and to provide a rotor with a tolerance ring. The rotor with the tolerance ring comprises a rotor body and a bearing seat, wherein a tolerance ring assembly is arranged between the rotor body and the bearing seat. The working principle of the utility model is that the tolerance ring assembly is arranged between the bearing seat and the rotor output shaft, the manufacturing process difficulty is reduced through the tolerance ring assembly, and meanwhile, when the tolerance ring is heated and expanded, the bearing and the rotor output shaft are not influenced, and the thermal damage is prevented. In the rotor with tolerance ring described above, the tolerance ring assembly includes two support rings and a sidewall for connecting the two support rings. In the rotor with tolerance ring described above, the sidewall is wave shaped. In the rotor with tolerance ring described above, the sidewall includes a plurality of alternating peaks and valleys extending in an axial direction of the sidewall. In the rotor with tolerance ring described above, a transition section is provided between the peaks and valleys. In the rotor with the tolerance ring, the wave crest, the transition section and the wave trough are integrally connected. Compared with the prior art, the utility model has the advantage of good thermal expansion resistance. Drawings Fig. 1 is a schematic structural view of the present utility model. Fig. 2 is a schematic cross-sectional structure of the present utility model. FIG. 3 is a schematic representation of the construction of a tolerance ring of the present utility model. FIG. 4 is a schematic cross-sectional view of a tolerance ring assembly of the present utility model. In the figure, 1, a rotor body, 2, a bearing seat, 3, a tolerance ring assembly, 4, a support ring, 5, a side wall, 6, a crest, 7, a trough, 8 and a transition section. Detailed Description The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments. As shown in fig. 1-4, the rotor with the tolerance ring comprises a rotor body and a bearing seat, wherein a tolerance ring assembly is arranged between the rotor body and the bearing seat. Further, the tolerance ring assembly includes two support rings and a sidewall, the sidewall being configured to connect the two support rings, the two support rings simultaneously acting as a seal to reduce the ingress of foreign particulate dust into the rotor. Further, the side wall is wave-shaped, and comprises a plurality of alternating wave crests and wave troughs, and the wave crests and wave troughs extend along the axial direction of the side wall, so that an expansion space is formed inside the side wall, the cost is saved, and the side wall can be deformed into different sizes and shapes during assembly. Further, a transition section is arranged between the wave crest and the wave trough, so that the fatigue life can be prolonged, and the thermal compensation capability can be enhanced. Further, the wave crest, the transition section and the wave trough are integrally connected, so that the overall structural performance of the side wall is improved, and the installation steps are simplified. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modificatio