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CN-224214367-U - Three-rotary-vane structure rotor of rotary-vane vacuum pump

CN224214367UCN 224214367 UCN224214367 UCN 224214367UCN-224214367-U

Abstract

The utility model relates to the technical field of rotors, in particular to a rotor with a three-rotary-vane structure of a rotary-vane vacuum pump, which comprises an input shaft, wherein one end of the input shaft is fixedly connected with a rotor body, three rotary-vane grooves are formed in the surface of the rotor body, the surfaces of the three rotary-vane grooves are all connected with a rotary-vane body in a sliding manner, limit grooves are formed in the side surfaces of the rotary-vane body, three grooves are formed in the surface of the rotor body, arc-shaped limiting blocks are all connected with the surfaces of the three grooves in a sliding manner, the arc-shaped limiting blocks are all connected with the surfaces of the limit grooves in a sliding manner, one side of each arc-shaped limiting block, which is far away from each groove, is an arc surface, the surfaces of the three grooves are all fixedly connected with a fixing plate, and the inner wall of the fixing plate is connected with sliding bars in a sliding manner. The utility model solves the problem that the installation of the rotor body is complicated because the rotary vane of the rotor body is connected on the inner wall of the rotor body in a sliding way, and an operator is required to control the position of the rotary vane when installing the rotor body.

Inventors

  • CHEN PENG

Assignees

  • 浙江卓捷真空技术有限公司

Dates

Publication Date
20260508
Application Date
20250519

Claims (7)

  1. 1. The three-rotary-vane structure rotor of the rotary vane vacuum pump comprises an input shaft (1), one end of the input shaft (1) is fixedly connected with a rotor body (2), three rotary vane grooves (4) are formed in the surface of the rotor body (2), the three rotary vane grooves (4) are all connected with the rotary vane body (3) in a sliding mode, and the three-rotary-vane structure rotor is characterized in that a limit groove (6) is formed in the side face of the rotary vane body (3), three grooves (5) are formed in the surface of the rotor body (2), arc-shaped limit blocks (9) are all connected with the surfaces of the grooves (5) in a sliding mode, and one side, far away from the grooves (5), of each arc-shaped limit block (9) is an arc surface.
  2. 2. The three-rotary-vane structure rotor of the rotary-vane vacuum pump of claim 1 is characterized in that the surfaces of the three grooves (5) are fixedly connected with a fixing plate (8), the inner wall of the fixing plate (8) is slidably connected with a sliding rod (10), and the sliding rod (10) is fixedly connected with an arc-shaped limiting block (9).
  3. 3. The three-rotary-vane structure rotor of the rotary-vane vacuum pump of claim 2, wherein the surface of the sliding rod (10) is sleeved with a spring (11), and two ends of the spring (11) are fixedly connected with the fixed plate (8) and the arc-shaped limiting block (9) respectively.
  4. 4. The three-rotary-vane structure rotor of the rotary-vane vacuum pump of claim 3, wherein one end of the sliding rod (10) far away from the arc-shaped limiting block (9) is fixedly connected with a bent rod (12).
  5. 5. The three-rotary-vane structure rotor of the rotary-vane vacuum pump of claim 4, wherein the surfaces of the three grooves (5) are all connected with an adjusting arc-shaped block (13) in a sliding mode, one side, far away from the fixed plate (8), of the adjusting arc-shaped block (13) is an arc surface, the arc surface of the adjusting arc-shaped block (13) is abutted to a bent rod (12), and one side, close to the input shaft (1), of the adjusting arc-shaped block (13) is fixedly connected with a push rod (15).
  6. 6. The three-rotary-vane structure rotor of the rotary-vane vacuum pump of claim 5, wherein the surfaces of the three grooves (5) are provided with sliding grooves (7), the surfaces of the sliding grooves (7) are connected with sliding blocks (14) in a sliding manner, and the sliding blocks (14) are fixedly connected with the adjusting arc-shaped blocks (13).
  7. 7. The rotor with the three-rotary-vane structure of the rotary-vane vacuum pump of claim 1 is characterized in that three positioning grooves (16) are formed in the surface of the rotor body (2), positioning strips (17) are slidably connected to the surfaces of the three positioning grooves (16), and the positioning strips (17) are fixedly connected with the rotary-vane body (3).

Description

Three-rotary-vane structure rotor of rotary-vane vacuum pump Technical Field The utility model relates to the technical field of rotors, in particular to a rotor with a three-rotary-vane structure of a rotary-vane vacuum pump. Background The rotary vane vacuum pump is one oil sealed vacuum pump with vane and with vane inside the pump cavity and with periodically varying capacity to realize pumping effect, and may be used in metallurgical, mechanical, electronic and chemical fields. The existing related technology has the defects that in the process of installing a rotor with a three-rotary-vane structure in the prior art, as the rotary vanes are connected to the inner wall of the rotor body in a sliding way, operators are required to control the positions of the rotary vanes, so that the installation of the rotor body is complicated. Therefore, the utility model provides a three-rotary-vane structure rotor of a rotary-vane vacuum pump. Disclosure of utility model The utility model aims to solve the defect that in the prior art, as a rotor body is connected to the inner wall of the rotor body in a sliding way, an operator is required to control the position of the rotor when installing the rotor body, so that the installation of the rotor body is complex. In order to achieve the purpose, the three-rotary-vane structure rotor of the rotary-vane vacuum pump comprises an input shaft, wherein one end of the input shaft is fixedly connected with a rotor body, three rotary-vane grooves are formed in the surface of the rotor body, the surfaces of the three rotary-vane grooves are all connected with the rotary-vane body in a sliding mode, limit grooves are formed in the side faces of the rotary-vane body, three grooves are formed in the surface of the rotor body, arc-shaped limiting blocks are all connected with the surfaces of the three grooves in a sliding mode, the arc-shaped limiting blocks are connected with the surfaces of the limit grooves in a sliding mode, and one side, far away from the grooves, of each arc-shaped limiting block is an arc surface. The arc-shaped limiting block which is connected to the surface of the groove in a sliding mode can move to be close to or far away from the limiting groove on the rotary blade body, so that the limiting of the position of the rotary blade body and the limiting of the position of the rotary blade body can be achieved, and the arc-shaped limiting block can be pushed to move when the rotary blade body is installed through the cambered surface of the arc-shaped limiting block. Preferably, the surfaces of the three grooves are fixedly connected with a fixing plate, the inner wall of the fixing plate is slidably connected with a sliding rod, and the sliding rod is fixedly connected with an arc-shaped limiting block. The fixing plate can be used for installing the sliding rod, so that the position of the arc-shaped limiting block can be limited, and the arc-shaped limiting block can be ensured to move. Preferably, the surface of the sliding rod is sleeved with a spring, and two ends of the spring are fixedly connected with the fixed plate and the arc-shaped limiting block respectively. The movable limiting device has the advantages that the position of the spring can be limited through the arranged sliding rod, and stable connection between the arc-shaped limiting block and the fixed plate can be ensured through the arranged spring, and meanwhile movement of the arc-shaped limiting block is limited. Preferably, one end of the sliding rod, which is far away from the arc-shaped limiting block, is fixedly connected with a bent rod. The arc limiting block has the advantages that the sliding rod can be controlled to move through the bent rod, and therefore the position of the arc limiting block is adjusted. Preferably, the surfaces of the three grooves are all connected with an adjusting arc-shaped block in a sliding mode, one side, far away from the fixed plate, of the adjusting arc-shaped block is an arc surface, the arc surface of the adjusting arc-shaped block is abutted to the bent rod, and one side, close to the input shaft, of the adjusting arc-shaped block is fixedly connected with a push rod. The adjusting arc type block has the advantages that the adjusting arc type block can move through the arranged push rod, and accordingly the adjusting arc type block can push the bent rod to move. Preferably, the surfaces of the three grooves are provided with sliding grooves, the surfaces of the sliding grooves are connected with sliding blocks in a sliding manner, and the sliding blocks are fixedly connected with the adjusting arc-shaped blocks. The adjustable arc-shaped block has the advantages that the adjustable arc-shaped block can be stably installed through the arranged sliding groove and the sliding block, and meanwhile the position of the adjustable arc-shaped block can be guaranteed to be moved. Preferably, three positioning grooves are formed in the surface of the