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CN-224214357-U - Large-diameter high-precision rotor

CN224214357UCN 224214357 UCN224214357 UCN 224214357UCN-224214357-U

Abstract

The utility model discloses a large-diameter high-precision rotor, which comprises an outer rotor, an inner rotor, teeth, sliding plates and rotating shafts, wherein the inner rotor is arranged in the outer rotor, the four corners of the inner rotor are respectively provided with one tooth, the two ends of each tooth are respectively provided with one sliding plate, the teeth are connected to the inner rotor through the sliding plates, each tooth is connected with the rotating shaft, the rotating shaft is contacted with the outer rotor, and when the inner rotor rotates, the springs can push out the teeth outwards, so that the rotating shafts on the teeth are always contacted with the outer rotor.

Inventors

  • WEI GANG
  • Lv Jialong

Assignees

  • 南京金牛机械制造股份有限公司

Dates

Publication Date
20260508
Application Date
20250526

Claims (8)

  1. 1. The large-diameter high-precision rotor comprises an outer rotor (1) and an inner rotor (2) and is characterized by further comprising teeth (3), sliding plates (4) and rotating shafts (5), wherein the inner rotor (2) is arranged in the outer rotor (1), one tooth (3) is arranged at each of four corners of the inner rotor (2), one sliding plate (4) is arranged at each of two ends of each tooth (3), the teeth (3) are connected to the inner rotor (2) through the sliding plates (4), the rotating shafts (5) are connected to each tooth (3), and the rotating shafts (5) are in contact with the outer rotor (1).
  2. 2. The large-diameter high-precision rotor as claimed in claim 1, wherein the inner rotor (2) is provided with a guide groove (6) at the position of the sliding plate (4).
  3. 3. A large-diameter high-precision rotor as claimed in claim 2, wherein the top end of the sliding plate (4) is connected with the teeth (3), and the bottom end of the sliding plate (4) is connected inside the guide groove (6).
  4. 4. A large-diameter high-precision rotor according to claim 3, characterized in that two clamping blocks (7) are connected to the side wall of the sliding plate (4).
  5. 5. The large-diameter high-precision rotor as claimed in claim 4, wherein the inner rotor (2) is provided with clamping grooves (8) at the positions of the clamping blocks (7).
  6. 6. A large-diameter high-precision rotor according to claim 3, wherein three sets of rotating shafts (5) are arranged above the teeth (3), and the three sets of rotating shafts (5) are arranged along the width direction of the teeth (3).
  7. 7. A large diameter high precision rotor according to claim 1, characterized in that two springs (9) are provided in the middle of the two sets of sliding plates (4).
  8. 8. A large diameter high precision rotor as claimed in claim 7, characterized in that both ends of the two springs (9) are connected with the teeth (3) and the inner rotor (2), respectively.

Description

Large-diameter high-precision rotor Technical Field The utility model relates to the technical field of oil pumps, in particular to a large-diameter high-precision rotor. Background The inside of the existing oil pump rotor comprises an inner rotor and an outer rotor, when the oil pump rotor works, teeth on the inner rotor and the outer rotor can be in direct contact, and when the oil pump rotor is used for a long time, the teeth of the inner rotor and the outer rotor are easy to wear. Disclosure of utility model The utility model aims to overcome the defect that teeth on an inner rotor and an outer rotor are easy to wear when the oil pump rotor in the prior art is used for a long time because the teeth on the inner rotor and the outer rotor are in direct contact when the oil pump rotor works. The utility model provides a major diameter high accuracy rotor, includes external rotor and internal rotor, still includes tooth, sliding plate and pivot, the internal rotor sets up in the inside of external rotor, and the four corners position of internal rotor all is equipped with a tooth, and the both ends of every tooth all are equipped with a sliding plate, and the tooth passes through the sliding plate to be connected on the internal rotor, all is connected with the pivot on every tooth, and pivot and external rotor contact. In the technical scheme of the utility model, teeth are arranged on the periphery of the inner rotor, each tooth is rotationally connected with three groups of rotating shafts, and the rotating shafts are rotationally connected to the teeth, so that when the inner rotor and the outer rotor rotate, the rotating shafts can rotate against friction between the outer rotor and the teeth, thereby counteracting friction force between the teeth and the outer rotor, avoiding abrasion of the teeth, and solving the defect that the teeth of the inner rotor and the outer rotor are easy to wear when the oil pump rotor in the technical background is in operation, and the teeth of the inner rotor and the outer rotor are in direct contact when in long-time use. According to the technical scheme, the inner rotor is provided with the guide groove at the position of the sliding plate, and the guide groove can guide the sliding plate when the teeth and the sliding plate slide outwards. According to the technical scheme, the top end of the sliding plate is connected with the teeth, the bottom end of the sliding plate is connected in the guide groove, and when the sliding plate slides in the height direction of the guide groove, the lower end of the sliding plate ensures that the sliding plate cannot deviate from the guide groove, so that the teeth cannot be thrown outwards due to centrifugal force when the inner rotor rotates. According to the technical scheme, two clamping blocks are connected to the side wall of the sliding plate, the clamping blocks are arranged in the clamping grooves in a sliding mode, and one side of each clamping groove guide groove is used for guaranteeing that the sliding plate and teeth cannot be thrown out transversely when the inner rotor rotates. According to the technical scheme, the clamping groove is formed in the position, located on the clamping block, of the inner rotor, the clamping block is arranged in the clamping groove in a sliding mode, and one side of the clamping groove guide groove is used for guaranteeing that the sliding plate and the teeth cannot be thrown out transversely when the inner rotor rotates. According to the technical scheme, three groups of rotating shafts are arranged above the teeth, and are arranged in the width direction of the teeth, and the rotating shafts rotate in the process of moving the teeth from tooth sockets of the outer rotor to tooth tops and moving the teeth from the tooth tops of the outer rotor to the tooth sockets, so that friction between the teeth and the outer rotor is counteracted, and abrasion of the teeth is reduced. According to the technical scheme, two springs are arranged at the middle positions of the two groups of sliding plates, and when the teeth move towards the direction of the inner rotor, the springs are compressed and store force, so that the teeth can be ejected outwards by the springs when the teeth move to the tooth groove position of the outer rotor. According to the technical scheme, the two ends of the two springs are respectively abutted against the teeth and the inner rotor, and when the teeth move into tooth grooves between two adjacent teeth of the outer rotor, the springs can push out the teeth outwards until the rotating shaft of the teeth is connected with the tooth grooves of the outer rotor, so that the rotating shaft is always in line contact with the outer rotor. Compared with the prior art, the utility model has the following beneficial effects: When the inner rotor rotates, the rotating shaft rotates due to friction of the outer rotor, so that friction force between teeth and the outer rotor is c