CN214092262U

CN214092262U - Vacuum pump driven by permanent magnet variable frequency motor

Info

Publication number: CN214092262U
Application number: CN202023184450.0U
Authority: CN
Inventors: 谭波
Original assignee: Linhai Tan Vacuum Equipment Co ltd
Current assignee: Linhai Tan Vacuum Equipment Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-31
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses an adopt permanent magnet variable frequency motor driven vacuum pump, including pump case body, left diaphragm cavity, right diaphragm cavity and eccentric cover subassembly, permanent magnet variable frequency motor, the subassembly that admits air, the subassembly of giving vent to anger, eccentric cover subassembly includes that elasticity rises and tightly overlaps, left swing arm, right swing arm, eccentric cover, is provided with the eccentric shaft on the eccentric cover, be provided with the eccentric orfice on the eccentric shaft, left swing arm is connected with the subassembly cooperation of admitting air, and right swing arm is connected with the subassembly cooperation of giving vent to anger, and permanent magnet variable frequency motor's output shaft rises through elasticity and tightly overlaps and the setting of pegging graft with the eccentric orfice. The utility model has the advantages of reasonable design, connect admit air subassembly and the subassembly of giving vent to anger through the swing arm to being the rotary type through the bearing and connecting, elasticity rises to set up the synchronous rotation of eccentric cover of drive of tight cover, and then drives the rotation of swing arm, realizes admitting air and the process of giving vent to anger, and the permanent magnet variable frequency motor who adopts simultaneously provides drive power, and it is good to reach the radiating effect, long service life, the purpose of the energy saving.

Description

Vacuum pump driven by permanent magnet variable frequency motor

Technical Field

The utility model belongs to the technical field of the vacuum pump, concretely relates to adopt permanent magnet variable frequency motor driven vacuum pump.

Background

The vacuum pump is a device or equipment for obtaining vacuum by pumping a pumped container by using a mechanical, physical or chemical method, generally speaking, the vacuum pump is a device for improving, generating and maintaining vacuum in a certain closed space by using various methods, and according to the working principle of the vacuum pump, the vacuum pump can be basically divided into two types, namely a gas capture pump and a gas transmission pump, and is widely applied to industries such as metallurgy, chemical engineering, food, electronic coating and the like. Along with the development of science and technology, the problem that the existing vacuum pump driven by a common motor is poor in heat dissipation effect and mechanical strength mostly exists, so that the vacuum pump which can effectively save energy and is good in heat dissipation effect is very necessary to design.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide an adopt permanent magnetism inverter motor driven vacuum pump.

The utility model discloses a following technical scheme realizes:

the vacuum pump driven by the permanent magnet variable frequency motor is characterized by comprising a pump shell, a left diaphragm cavity, a right diaphragm cavity, an eccentric sleeve assembly and a permanent magnet variable frequency motor, wherein the left diaphragm cavity, the right diaphragm cavity and the eccentric sleeve assembly are integrated in the pump shell, the permanent magnet variable frequency motor is arranged on one side of the pump shell, an air inlet assembly is arranged in the left diaphragm cavity, an air outlet assembly is arranged in the right diaphragm cavity, the eccentric sleeve assembly comprises an elastic tensioning sleeve, a left swing arm, a right swing arm and an eccentric sleeve, an eccentric shaft is arranged on the eccentric sleeve, an eccentric hole is formed in the eccentric shaft, the left swing arm is connected with the air inlet assembly in a matched mode, the right swing arm is connected with the air outlet assembly in a matched mode, and an output shaft of the permanent magnet variable frequency motor is connected with the eccentric hole in an inserting mode through the elastic tensioning sleeve.

Further, the subassembly that admits air includes the left side apron, admit air dish, left valve block, left cavity, the left diaphragm subassembly that set gradually from outside to inside, left side diaphragm subassembly is connected with left swing arm, the subassembly of giving vent to anger includes the right side apron, the dish of giving vent to anger, right valve block, right cavity, the right diaphragm subassembly that sets gradually from outside to inside, right diaphragm subassembly is connected with right swing arm.

Furthermore, the left diaphragm assembly and the right diaphragm assembly respectively comprise a diaphragm clamping disc, a diaphragm supporting disc, an adjusting gasket and a gasket, wherein a convex part for the diaphragm to be sleeved in is arranged on the diaphragm clamping disc, and the gaskets are fixedly connected with the corresponding left swing arm or the corresponding right swing arm through screws.

Furthermore, O-shaped sealing rings are arranged between the left valve plate and the air inlet disc and between the right valve plate and the air outlet disc.

Furthermore, the left cover plate is provided with an air inlet hole communicated with the air inlet disc at a position corresponding to the air inlet disc, and the right cover plate is provided with an air outlet hole communicated with the air outlet disc at a position corresponding to the air outlet disc.

Furthermore, the left swing arm and the right swing arm are both sleeved on the eccentric shaft through bearings, and a spacer is further arranged between the left swing arm and the right swing arm.

Furthermore, an inner concave ring is arranged on an output shaft of the permanent magnet variable frequency motor, and an elastic tensioning sleeve is sleeved on the inner concave ring.

Further, a motor shell is sleeved on the permanent magnet variable frequency motor and connected with the pump shell through screws.

The utility model has the advantages of reasonable design, connect admit air subassembly and the subassembly of giving vent to anger through the swing arm to being the rotary type through the bearing and connecting, elasticity rises to set up the synchronous rotation of eccentric cover of drive of tight cover, and then drives the rotation of swing arm, realizes admitting air and the process of giving vent to anger, and the permanent magnet variable frequency motor who adopts simultaneously provides drive power, and it is good to reach the radiating effect, long service life, the purpose of the energy saving.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a view of the coupling structure with the pump housing removed;

in the figure, 1-pump shell, 2-left diaphragm cavity, 3-right diaphragm cavity, 4-permanent magnet variable frequency motor, 5-elastic tensioning sleeve, 6-left swing arm, 7-right swing arm, 8-eccentric sleeve, 9-eccentric shaft, 10-eccentric hole, 12-left cover plate, 13-air inlet plate, 14-left valve plate, 15-left cavity, 16-right cover plate, 17-air outlet plate, 18-right valve plate, 19-right cavity, 20-diaphragm clamping plate, 21-diaphragm, 22-diaphragm supporting plate, 23-adjusting gasket, 24-gasket, 25-O type sealing ring, 26-air inlet hole, 27-air outlet hole, 28-bearing, 29-spacer sleeve and 30-motor shell.

Detailed Description

The technical solution of the present invention is described in detail and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work are included in the protection scope of the present invention based on the embodiments of the present invention.

As shown in fig. 1-2, the utility model relates to an adopt permanent magnet variable frequency motor driven vacuum pump, including the pump casing, the left diaphragm cavity of integration in the pump casing, right diaphragm cavity and eccentric cover subassembly, set up the permanent magnet variable frequency motor in pump casing one side, the subassembly of admitting air has been put to left diaphragm cavity, the subassembly of giving vent to anger has been put to right diaphragm cavity, eccentric cover subassembly is used for driving the subassembly of admitting air and the subassembly action of giving vent to anger, thereby realize admitting air and the circulation of giving vent to anger, the last cover of permanent magnet variable frequency motor is equipped with motor casing, motor casing passes through screw connection with.

Continuing to refer to fig. 1, eccentric cover subassembly includes that elasticity rises tight cover, left swing arm, right swing arm, eccentric cover, be provided with the eccentric shaft on the eccentric cover, be provided with the eccentric hole on the eccentric shaft, left swing arm and right swing arm all cup joint the setting on the eccentric shaft through the bearing, still be provided with the spacer between left swing arm and the right swing arm, left swing arm is connected with the subassembly cooperation of admitting air, right swing arm is connected with the subassembly cooperation of giving vent to anger, be provided with the indent ring on inverter motor's the output shaft, cup joint on the indent ring and be provided with elasticity and rise tight cover, permanent magnet inverter motor's output shaft rises tight cover and eccentric hole grafting setting through elasticity.

Continuing to refer to fig. 1, the air inlet assembly comprises a left cover plate, an air inlet disc, a left valve plate, a left cavity and a left diaphragm assembly which are sequentially arranged from outside to inside, the left diaphragm assembly is connected with the left swing arm, the air outlet assembly comprises a right cover plate, an air outlet disc, a right valve plate, a right cavity and a right diaphragm assembly which are sequentially arranged from outside to inside, and the right diaphragm assembly is connected with the right swing arm. The left cover plate is provided with a communicated air inlet hole at a position corresponding to the air inlet disc, and the right cover plate is provided with a communicated air outlet hole at a position corresponding to the air outlet disc. The left diaphragm assembly and the right diaphragm assembly respectively comprise a diaphragm clamping disc, a diaphragm supporting disc, an adjusting gasket and a gasket, wherein a convex part for the diaphragm to be sleeved in is arranged on the diaphragm clamping disc, and the gaskets are fixedly connected with the corresponding left swing arm or the corresponding right swing arm through screws. In order to improve the air tightness, O-shaped sealing rings are arranged between the left valve block and the air inlet disc and between the right valve block and the air outlet disc.

The utility model discloses theory of operation, at this vacuum pump during operation, inverter motor's output pole drives eccentric cover and rotates, and then drives left swing arm and right swing arm and be the opposite direction rotation to the action of subassembly and the subassembly of giving vent to anger is admitted air in the drive, realizes admitting air and the action of giving vent to anger.

Claims

1. A vacuum pump driven by a permanent magnet variable frequency motor is characterized by comprising a pump shell (1), a left diaphragm chamber (2) and a right diaphragm chamber (3) which are integrated in the pump shell (1), an eccentric sleeve assembly and a permanent magnet variable frequency motor (4) arranged on one side of the pump shell (1), an air inlet component is arranged in the left diaphragm chamber (2), an air outlet component is arranged in the right diaphragm chamber (3), the eccentric sleeve component comprises an elastic tensioning sleeve (5), a left swing arm (6), a right swing arm (7) and an eccentric sleeve (8), an eccentric shaft (9) is arranged on the eccentric sleeve (8), an eccentric hole (10) is arranged on the eccentric shaft (9), the left swing arm (6) is connected with the air inlet component in a matching way, the right swing arm (7) is connected with the air outlet component in a matching way, the output shaft of the permanent magnet variable frequency motor (4) is inserted into the eccentric hole (10) through the elastic tensioning sleeve (5).

2. The vacuum pump driven by the permanent magnet variable frequency motor according to claim 1, wherein the air inlet assembly comprises a left cover plate (12), an air inlet disc (13), a left valve plate (14), a left cavity (15) and a left diaphragm assembly which are sequentially arranged from outside to inside, the left diaphragm assembly is connected with the left swing arm (6), the air outlet assembly comprises a right cover plate (16), an air outlet disc (17), a right valve plate (18), a right cavity (19) and a right diaphragm assembly which are sequentially arranged from outside to inside, and the right diaphragm assembly is connected with the right swing arm (7).

3. The vacuum pump driven by the permanent magnet variable frequency motor according to claim 2, wherein each of the left and right diaphragm assemblies comprises a diaphragm clamping disk (20), a diaphragm (21), a diaphragm supporting disk (22), an adjusting gasket (23) and a gasket (24), the diaphragm clamping disk (20) is provided with a convex portion for the diaphragm (21) to be sleeved in, and the gasket (24) is fixedly connected with the corresponding left swing arm (6) or right swing arm (7) through screws.

4. The vacuum pump driven by the permanent magnet variable frequency motor according to claim 2, wherein O-shaped sealing rings (25) are arranged between the left valve plate (14) and the air inlet disc (13) and between the right valve plate (18) and the air outlet disc (17).

5. The vacuum pump driven by the permanent magnet variable frequency motor is characterized in that a communicated air inlet hole (26) is formed in the position, corresponding to the air inlet disc (13), of the left cover plate (12), and a communicated air outlet hole (27) is formed in the position, corresponding to the air outlet disc (17), of the right cover plate (16).

6. The vacuum pump driven by the permanent magnet variable frequency motor is characterized in that the left swing arm (6) and the right swing arm (7) are sleeved on the eccentric shaft (9) through bearings (28), and a spacer bush (29) is further arranged between the left swing arm (6) and the right swing arm (7).

7. The vacuum pump driven by the permanent magnet variable frequency motor according to claim 1, wherein an output shaft of the permanent magnet variable frequency motor (4) is provided with an inner concave ring, and the inner concave ring is sleeved with an elastic tensioning sleeve (5).

8. A vacuum pump driven by a pm inverter motor as claimed in claim 1, wherein said pm inverter motor (4) is sleeved with a motor housing (30), said motor housing (30) is connected with the pump housing (1) by screws.