CN213235449U

CN213235449U - Screw assembly of dry screw vacuum pump

Info

Publication number: CN213235449U
Application number: CN202021421081.XU
Authority: CN
Inventors: 刘欢
Original assignee: Tianjin Yanuo Chemical Equipment Co ltd
Current assignee: Tianjin Yanuo Chemical Equipment Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-05-18
Anticipated expiration: 2030-07-16

Abstract

The utility model belongs to the screw rod subassembly field, especially, screw rod subassembly of dry-type screw vacuum pump, include the axis of rotation and be located the epaxial screw rod body of rotation, two mounting panels are installed to the axis of rotation, and the screw rod body is located between two mounting panels, the equal fixed mounting in both sides of screw rod body has the fixed plate, and the fixed plate is mutually adapted with the mounting panel that corresponds, the top fixed mounting of fixed plate has the L shaped plate, and the L shaped plate is mutually adapted with the fixed plate that corresponds, sliding sleeve is equipped with the movable plate that two symmetries set up in the axis of rotation, the fixed slot has been seted up at the top of movable plate, set up threaded hole on the L shaped plate, threaded hole installs fixing bolt, and fixing bolt and the fixed slot looks. The utility model relates to a rationally, simple structure, convenient operation is convenient for carry out the dismouting to the screw rod body to be convenient for change and maintain the screw rod body.

Description

Screw assembly of dry screw vacuum pump

Technical Field

The utility model relates to a screw rod subassembly technical field especially relates to a dry-type screw vacuum pump's screw rod subassembly.

Background

Dry-type screw vacuum pump is the very high science and technology product of technical content, mainly be applied to the vacuum process of high purity, the vacuum degree is high, inside at the vacuum pump is provided with screw assembly, the vacuum pump mainly carries out work through screw assembly, the in-process of work, screw assembly rotates in the inside of vacuum pump, when the device live time is longer, some wearing and tearing can appear in screw assembly's surface, some screw assembly installations that have now are more troublesome, make screw assembly maintain with change when more troublesome, therefore we have proposed a dry-type screw vacuum pump's screw assembly and are used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and having the screw rod subassembly installation among the prior art more troublesome for relatively more troublesome shortcoming when screw rod subassembly maintains and changes, and the screw rod subassembly of a dry-type screw vacuum pump who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a screw assembly of a dry screw vacuum pump comprises a rotating shaft and a screw body positioned on the rotating shaft, wherein the rotating shaft is provided with two mounting plates, the screw body is positioned between the two mounting plates, both sides of the screw body are fixedly provided with fixed plates which are matched with the corresponding mounting plates, the top of each fixed plate is fixedly provided with an L-shaped plate which is matched with the corresponding fixed plate, the rotating shaft is sleeved with two symmetrically arranged movable plates in a sliding manner, the top of each movable plate is provided with a fixed groove, each L-shaped plate is provided with a threaded hole, a fixed bolt is arranged in the threaded hole and is matched with the corresponding fixed groove, the top of each two mounting plates close to each other is provided with an open placing groove, one sides of the two fixed plates, far away from each other, are fixedly provided with placing seats which are matched with the corresponding, two pin grooves that the symmetry set up are all seted up to one side that the seat was kept away from each other of placing, set up the first hole that two symmetries set up on one side inner wall of placing groove, and sliding mounting has the pin rod in the first hole, and the one end fixed mounting of pin rod is on the movable plate that corresponds, and pin rod and the pin groove looks adaptation that corresponds.

Preferably, the limiting grooves are formed in the inner wall of the top of the first hole and the inner wall of the bottom of the first hole, the limiting seats are fixedly mounted at the tops and the bottoms of the pin rods, the limiting seats are connected with the corresponding limiting grooves in a sliding mode, and the pin rods can be limited through the limiting seats and the limiting grooves.

Preferably, one end of a return spring is fixedly mounted on the inner wall of one side of the limiting groove, the other end of the return spring is fixedly mounted on the corresponding limiting seat, and the limiting seat can reciprocate through the return spring.

Preferably, the top end of the fixing bolt extends to the upper side of the L-shaped plate and is fixedly provided with a knob, and a protective sleeve is fixedly sleeved on the knob.

Preferably, the moving plate is provided with a sliding hole, and the rotating shaft is connected with the corresponding sliding hole in a sliding manner.

In the utility model, when the screw rod body is replaced, firstly, the movable plates are moved in the reverse direction in a way that the two movable plates are away from each other, so that the movable plates can drive the pin rods to move, the pin rods are accommodated in the first holes, the pin rods can drive the limiting seats to move and the reset springs are compressed, then the screw rod body is placed above the two mounting plates, so that the placing seats are matched with the corresponding placing grooves, the screw rod body is moved downwards, the placing seats can be clamped into the corresponding placing grooves, the limiting seats can be reset under the elastic force action of the reset springs by loosening the movable plates, the limiting seats can drive the pin rods to reset and be clamped into the corresponding pin grooves, and the screw rod body can be preliminarily fixed;

can drive the movable plate when the pin rod resets and reset, make fixing bolt's position corresponding with the fixed slot position this moment, through rotating fixing bolt, under the effect of screw hole, can make fixing bolt rotate on one side and remove, fixing bolt's removal can block into in the fixed slot that corresponds to can strengthen the fixing to the screw rod body.

The utility model relates to a rationally, simple structure, convenient operation is convenient for carry out the dismouting to the screw rod body to be convenient for change and maintain the screw rod body.

Drawings

Fig. 1 is a schematic structural diagram of a screw assembly of a dry screw vacuum pump according to the present invention;

fig. 2 is a schematic structural view of a part a of a screw assembly of a dry screw vacuum pump according to the present invention;

fig. 3 is a schematic structural diagram of a part B of a screw assembly of a dry screw vacuum pump according to the present invention.

In the figure: 1. a rotating shaft; 2. a screw body; 3. mounting a plate; 4. a fixing plate; 5. an L-shaped plate; 6. a placement groove; 7. a placing seat; 8. moving the plate; 9. fixing grooves; 10. a threaded hole; 11. fixing the bolt; 12. a pin slot; 13. a first hole; 14. a pin rod; 15. a limiting groove; 16. a limiting seat; 17. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a screw assembly of a dry screw vacuum pump comprises a rotating shaft 1 and a screw body 2 located on the rotating shaft 1, wherein the rotating shaft 1 is provided with two mounting plates 3, the screw body 2 is located between the two mounting plates 3, both sides of the screw body 2 are fixedly provided with a fixed plate 4, the fixed plate 4 is matched with the corresponding mounting plate 3, the top of the fixed plate 4 is fixedly provided with an L-shaped plate 5, the L-shaped plate 5 is matched with the corresponding fixed plate 4, the rotating shaft 1 is slidably sleeved with two symmetrically arranged moving plates 8, the top of the moving plate 8 is provided with a fixed groove 9, the L-shaped plate 5 is provided with a threaded hole 10, the threaded hole 10 is internally provided with a fixed bolt 11, the fixed bolt 11 is matched with the corresponding fixed groove 9, the top of one side, close to each other, of the two mounting plates 3 is an open placing groove 6, and placing seat 7 and corresponding placing groove 6 looks adaptation, two round pin grooves 12 that the symmetry set up have all been seted up to the one side that two placing seats 7 kept away from each other, set up the first hole 13 that two symmetries set up on the inner wall of one side of placing groove 6, and slidable mounting has pin rod 14 in the first hole 13, and the one end fixed mounting of pin rod 14 is on corresponding movable plate 8, and pin rod 14 and corresponding round pin groove 12 looks adaptation.

The utility model discloses in, spacing groove 15 has all been seted up on the top inner wall of first hole 13 and on the inner wall of bottom, and the top and the equal fixed mounting in bottom of pin rod 14 have spacing seat 16, and spacing seat 16 and the 15 sliding connection of spacing groove that correspond can carry on spacingly to pin rod 14 through spacing seat 16 and spacing groove 15.

The utility model discloses in, fixed mounting has reset spring 17's one end on one side inner wall of spacing groove 15, and reset spring 17's other end fixed mounting can make spacing seat 16 reciprocate through reset spring 17 on the spacing seat 16 that corresponds.

The utility model discloses in, fixing bolt 11's top extends to the top of L shaped plate 5 and fixed mounting has the knob, and fixed cover is equipped with the lag on the knob.

The utility model discloses in, set up the slip hole on the movable plate 8, and axis of rotation 1 and the slip hole sliding connection who corresponds.

In the utility model, when replacing the screw body 2, firstly, the moving plate 8 is moved in the reverse direction in which the two moving plates 8 are far away from each other, so that the moving plate 8 can drive the pin 14 to move, so that the pin 14 is accommodated in the first hole 13, the movement of the pin 14 can drive the limiting seat 16 to move and the reset spring 17 to compress, then the screw body 2 is placed above the two mounting plates 3, so that the placing seat 7 is matched with the corresponding placing groove 6, the screw body 2 is moved downwards, the placing seat 7 can be clamped into the corresponding placing groove 6, the limiting seat 16 can be reset under the elastic force of the reset spring 17 by loosening the moving plate 8, the limiting seat 16 can drive the pin 14 to reset and be clamped into the corresponding pin groove 12, the screw body 2 can be preliminarily fixed, when the pin 14 resets, the moving plate 8 can be driven to reset, at this time, the position of the fixing bolt 11 corresponds to the position of the fixing groove 9, and by rotating the fixing bolt 11, the fixing bolt 11 can be moved while being rotated by the screw hole 10, and the movement of the fixing bolt 11 can be engaged into the corresponding fixing groove 9, so that the fixing of the screw body 2 can be enhanced.

Claims

1. The utility model provides a screw rod subassembly of dry-type screw vacuum pump, including axis of rotation (1) and screw rod body (2) that are located axis of rotation (1), a serial communication port, two mounting panel (3) are installed to axis of rotation (1), and screw rod body (2) are located between two mounting panel (3), the equal fixed mounting in both sides of screw rod body (2) has fixed plate (4), and fixed plate (4) and corresponding mounting panel (3) looks adaptation, the top fixed mounting of fixed plate (4) has L shaped plate (5), and L shaped plate (5) and corresponding fixed plate (4) looks adaptation, sliding sleeve is equipped with movable plate (8) of two symmetry settings on axis of rotation (1), fixed slot (9) have been seted up at the top of movable plate (8), threaded hole (10) have been seted up on L shaped plate (5), fixing bolt (11) have been installed to threaded hole (, and fixing bolt (11) and fixed slot (9) looks adaptation that corresponds, two mounting panels (3) are close to the equal top in one side each other and are open-ended standing groove (6), the equal fixed mounting in one side of keeping away from each other of two fixed plates (4) has and places seat (7), and place seat (7) and standing groove (6) looks adaptation that corresponds, two round pin grooves (12) that the symmetry set up are all seted up to one side that places seat (7) and keep away from each other, set up first hole (13) that two symmetries set up on the one side inner wall of standing groove (6), slidable mounting has round pin pole (14) in first hole (13), the one end fixed mounting of round pin pole (14) is on movable plate (8) that correspond, and round pin pole (14) and corresponding round pin groove (12) looks adaptation.

2. The screw assembly of a dry screw vacuum pump according to claim 1, wherein the top inner wall and the bottom inner wall of the first hole (13) are both provided with a limiting groove (15), the top and the bottom of the pin rod (14) are both fixedly provided with a limiting seat (16), and the limiting seat (16) is slidably connected with the corresponding limiting groove (15).

3. Screw assembly of a dry screw vacuum pump according to claim 2, characterized in that one end of the return spring (17) is fixedly mounted on one side of the inner wall of the limiting groove (15), and the other end of the return spring (17) is fixedly mounted on the corresponding limiting seat (16).

4. Screw assembly of a dry screw vacuum pump according to claim 1, characterized in that the top of the fixing bolt (11) extends above the L-shaped plate (5) and is fixedly provided with a knob, and the knob is fixedly provided with a protective sleeve.

5. Screw assembly of a dry screw vacuum pump according to claim 1, characterized in that the moving plate (8) is provided with sliding holes and the rotating shaft (1) is slidably connected with the corresponding sliding holes.