CN210290140U

CN210290140U - Eccentric impeller rotor of water circulation vacuum pump

Info

Publication number: CN210290140U
Application number: CN201921230987.0U
Authority: CN
Inventors: 刘冬冬
Original assignee: Anhui Zhonghuan Testing Co Ltd
Current assignee: Anhui Zhonghuan Testing Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-04-10
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses an eccentric impeller rotor of a water circulation vacuum pump, which comprises a pump body, a rotor and a double-shaft synchronous motor, wherein the upper surface and the lower surface of an inner cavity of the pump body are provided with arc-shaped surfaces in different directions, the rotor consists of two groups of elastic cam columns which are parallel from top to bottom and have consistent structures, the outer ring surface of each elastic cam column is circumferentially and alternately distributed with a plurality of arc-shaped grooves and arc-shaped convex surfaces, and the curvatures of the arc-shaped grooves and the arc-shaped convex surfaces; the upper elastic cam column and the lower elastic cam column are mutually attached, the arc-shaped convex surface of the upper elastic cam column is in sliding fit with the arc-shaped groove of the lower elastic cam column, and the arc-shaped convex surfaces of the upper elastic cam column and the lower elastic cam column are in sliding fit with the different-direction arc surfaces above and below the inner cavity of the pump body; the outer section of the elastic cam column is distributed with a plurality of V-shaped blades corresponding to the axis of the section, and the blades at two sides of the V-shaped blade are of curved arc structures; the utility model discloses form two sets of adsorption affinity in intake pipe mouth department, make it have better vacuum effect of inhaling to the rotor of elasticity cam post has effectively increased the life of the pump body.

Description

Eccentric impeller rotor of water circulation vacuum pump

Technical Field

The utility model relates to a vacuum pump especially relates to a water circulating vacuum pump's eccentric impeller rotor.

Background

The circulating water vacuum pump is also called a water ring vacuum pump, and is a vacuum pumping pump. The eccentric impeller rotor is loaded in the pump casing, and the blades are forward-bent when the impeller rotates. The working water forms a water ring which swirls along the pump housing under the action of centrifugal force. Because of the eccentric position of the impeller, the water ring moves relatively to the blades, so that the space volume between two adjacent blades is changed periodically, for example, the water ring moves in a radial reciprocating mode in a liquid 'piston' blade grid. For example, when the vane on the right side of the figure rotates from the upper right to the lower, the water piston "between each two vanes is centrifugally pushed outwards, so that the volume of the space gradually increases from small to large, and reaches the maximum at the lowest part. Thereby sucking the gas from the axial suction port 4. When the blades rotate from the lowest direction to the left upper direction, the water piston moves relatively to the axis direction, and the space between the two blades gradually decreases from large to small, so that the sucked gas is gradually compressed. And is discharged through the exhaust port 6. The volume wheels are changed repeatedly with the stable rotation of the impeller, so that the air suction and exhaust processes are continued.

However, in the process of rotation of the prior rotor, only one suction force can be formed at the inlet, the vacuum can be sucked only at a higher rotating speed, the friction between the rotor and the pump is large, the abrasion is high, and the service life of the pump body is obviously shortened.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a water circulating vacuum pump's eccentric impeller rotor can solve the defect that the existing vacuum pump needs high-speed rotor just can inhale the vacuum.

In order to solve the technical problem, the utility model provides a following technical scheme: an eccentric impeller rotor of a water circulation vacuum pump comprises a pump body, a rotor arranged in an inner cavity of the pump body and a double-shaft synchronous motor which is positioned outside the pump body and is in transmission connection with the rotor, wherein the upper surface and the lower surface of the inner cavity of the pump body are provided with arc-shaped surfaces in different directions; the upper elastic cam column and the lower elastic cam column are mutually attached, the arc-shaped convex surface of the upper elastic cam column is in sliding fit with the arc-shaped groove of the lower elastic cam column, and the arc-shaped convex surface of the upper elastic cam column and the lower elastic cam column are in sliding fit with the incongruous arc-shaped surfaces above and below the inner cavity of the pump body; the outer section of the elastic cam column is distributed with a plurality of V-shaped blades corresponding to the axis of the section, and the blades at two sides of the V-shaped blade are of a bent arc structure.

As a preferred technical scheme of the utility model, pump body shell top surface is provided with the mouth of pipe and the mouth of pipe of giving vent to anger of admitting air, a pump body inner chamber wall is provided with inlet port and venthole, the mouth of pipe of admitting air passes through inlet port intercommunication pump body inner chamber, the mouth of pipe of giving vent to anger passes through venthole intercommunication pump body inner chamber.

As a preferred technical scheme of the utility model, pump body shell both sides face is water filling port and outlet respectively, just water filling port and outlet all communicate with pump body inner chamber.

As an optimized technical scheme of the utility model, all assemble water flow switch on water filling port and the outlet.

As an optimized technical scheme of the utility model, elasticity cam post is the rubber material.

As an optimal technical scheme of the utility model, biax synchronous machine and the pump body are on the bottom plate, elasticity cam post is connected in biax synchronous machine's dual output shaft drive.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is: the utility model has the advantages that the rotor of the water circulation vacuum pump forms the motion characteristic of synchronous turning through the elastic cam columns which are parallel up and down, so that two groups of adsorption force are formed at the air inlet pipe opening, and then the suction force is generated, so that the water circulation vacuum pump has better vacuum absorption effect; and the rotor of the elastic cam column reduces the abrasion of the pump body, and effectively prolongs the service life of the pump body.

Drawings

FIG. 1 is a schematic view of the mounting structure of the rotor and the pump body of the present invention;

FIG. 2 is a schematic view of the present invention;

wherein: 1. a pump body; 2. a double-shaft synchronous motor; 3. a rotor; 11. an air inlet pipe orifice; 12. an air outlet pipe orifice; 13. an air inlet; 14. an air outlet; 15. a water injection port; 16. a water outlet; 31. an elastic cam post; 33. an arc-shaped groove; 34. an arc convex surface; 35. a V-shaped blade.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Embodiment 1, please refer to fig. 1-2, the utility model provides an eccentric impeller rotor of water circulation vacuum pump, including the pump body 1, set up in the rotor 3 of the pump body 1 inner chamber and lie in the pump body 1 outside and the transmission connects the biax synchronous machine 2 of rotor 3, the upper and lower surfaces of the pump body 1 inner chamber are the arcwall face of incorgruous, the rotor 3 is by two sets of parallel and consistent elastic cam posts 31 of structure from top to bottom, the outer annular surface of elastic cam post 31 is along the annular crisscross distribution a plurality of arc recesses 33 and arc convex surfaces 34, arc recess 33 and arc convex surface 34 camber are equal; the upper elastic cam column 31 and the lower elastic cam column 31 are mutually attached, the arc convex surface 34 of the upper elastic cam column 31 is in sliding fit with the arc groove 33 of the lower elastic cam column 31, and the arc convex surfaces 34 of the upper elastic cam column 31 and the lower elastic cam column 31 are in sliding fit with the different-direction arc surfaces above and below the inner cavity of the pump body 1; the outer section of the elastic cam column 31 is distributed with a plurality of V-shaped blades 35 corresponding to the axis of the section, and the blades at the two sides of the V shape of the V-shaped blades 35 are of a curved arc structure.

The top surface of the shell of the pump body 1 is provided with an air inlet pipe orifice 11 and an air outlet pipe orifice 12, one wall surface of the inner cavity of the pump body 1 is provided with an air inlet hole 13 and an air outlet hole 14, the air inlet pipe orifice 11 is communicated with the inner cavity of the pump body 1 through the air inlet hole 13, the air outlet pipe orifice 12 is communicated with the inner cavity of the pump body 1 through the air outlet hole 14, when the rotor, the liquid water in the inner cavity of the pump body 1 is driven to change periodically, so that the inner cavity of the pump body 1 forms a motion state similar to the property of a piston, so as to form periodic compression and adsorption to air in the pump body 1, the air inlet pipe orifice 11 is communicated with the equipment to be vacuumized through a pipe fitting, after the double-shaft synchronous motor 2 is started, the double-shaft synchronous motor 2 drives the elastic cam column 31 to rotate in the pump body 1, and air of equipment to be vacuumized is discharged from the air inlet pipe orifice 11, the connecting pipe fitting, the air inlet hole 12, the air outlet pipe orifice 13 and the air outlet hole 14 in sequence, so that the vacuum absorption of the connecting equipment is realized; the two side surfaces of the shell of the pump body 1 are respectively provided with a water filling port 15 and a water discharging port 16, the water filling port 15 and the water discharging port 16 are both communicated with the inner cavity of the pump body 1, water flow switches are respectively assembled on the water filling port 15 and the water discharging port 16, and the water filling port 15 and the water discharging port 16 are used for filling and discharging liquid water in the pump body 1; the elastic cam columns 31 are made of rubber, the two groups of elastic cam columns 31 have better sliding performance due to the elastic cam columns 31 made of rubber, and better resilience performance is also achieved between every two adjacent elastic cam columns 31, so that poor operation of the elastic cam columns 31 due to rusting, corrosion or extrusion is avoided, and the operation of the elastic cam columns 31 is ensured; the double-shaft synchronous motor 2 and the pump body 1 are both arranged on the bottom plate, the double output shafts of the double-shaft synchronous motor 2 are in transmission connection with the elastic cam columns 31, and in the embodiment, the double-shaft synchronous motor 2 can be assembled by adopting two groups of motors and connected with the same control switch or the same power supply to achieve the double-shaft synchronous effect.

The specific principle is as follows: when the vacuum pump is used, the double-shaft synchronous motor 2 is started, the double-shaft synchronous motor 2 drives the two groups of elastic cam columns 31 which are parallel up and down in the pump body 1 to rotate through the two output shafts, and the two groups of rotors 3 which synchronously rotate reversely generate suction (vacuum degree) at the air inlet pipe orifice 11 in the rotating process, so that air in equipment to be vacuumized is sucked, and compared with a common vacuum pump, the vacuum pump can realize vacuum suction at a lower rotating speed; specifically, due to the cam structure with the same annular distance distribution, the elastic cam column 31 enables the seal cavity formed between the arc-shaped groove 33 and the pump body 1 to be changed from small to large and then from large to small, so that a periodically-changed self-suction effect similar to a piston is formed, and air of equipment to be sucked is absorbed; by using the elastic cam post 31 made of rubber, the rotor 3 is reduced

And the friction between the pump body 1 reduces the abrasion and prolongs the service life of the pump body 1.

The utility model has the advantages that the rotor of the water circulation vacuum pump forms the motion characteristic of synchronous turning through the elastic cam columns which are parallel up and down, so that two groups of adsorption force are formed at the air inlet pipe opening, and then the suction force is generated, so that the water circulation vacuum pump has better vacuum absorption effect; and the rotor of the elastic cam column reduces the abrasion of the pump body, and effectively prolongs the service life of the pump body.

In the present invention, unless otherwise explicitly specified or limited, a first feature is "on" a second feature "

Or "under" may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a water circulating vacuum pump's eccentric impeller rotor, includes the pump body (1), sets up in rotor (3) of the inner chamber of the pump body (1) and is located the outer biax synchronous machine (2) of connecting rotor (3) of transmission of the pump body (1), its characterized in that: the upper surface and the lower surface of the inner cavity of the pump body (1) are arc surfaces in different directions, the rotor (3) is composed of two groups of elastic cam columns (31) which are parallel up and down and have the same structure, a plurality of arc grooves (33) and arc convex surfaces (34) are distributed on the outer ring surface of each elastic cam column (31) in a staggered mode along the circumferential direction, and the curvatures of the arc grooves (33) and the arc convex surfaces (34) are equal; the upper elastic cam column (31) and the lower elastic cam column (31) are mutually attached, the arc-shaped convex surface (34) of the upper elastic cam column (31) is in sliding fit with the arc-shaped groove (33) of the lower elastic cam column (31), and the arc-shaped convex surface (34) of the upper elastic cam column (31) and the lower elastic cam column (31) are in sliding fit with the heterodromous arc surfaces above and below the inner cavity of the pump body (1); the outer section of the elastic cam column (31) is distributed with a plurality of V-shaped blades (35) corresponding to the axis of the section, and the blades at two sides of the V-shaped blade (35) are of a bent arc structure.

2. The eccentric impeller rotor of a water circulating vacuum pump as claimed in claim 1, wherein: the pump body (1) shell top surface is provided with inlet pipe mouth (11) and outlet pipe mouth (12), a pump body (1) inner chamber wall is provided with inlet port (13) and venthole (14), inlet pipe mouth (11) are through inlet port (13) intercommunication pump body (1) inner chamber, outlet pipe mouth (12) are through venthole (14) intercommunication pump body (1) inner chamber.

3. The eccentric impeller rotor of a water circulating vacuum pump as claimed in claim 1, wherein: two side surfaces of the shell of the pump body (1) are respectively provided with a water filling port (15) and a water outlet (16), and the water filling port (15) and the water outlet (16) are communicated with the inner cavity of the pump body (1).

4. The eccentric impeller rotor of a water circulating vacuum pump according to claim 3, wherein: and water flow switches are respectively arranged on the water filling port (15) and the water discharging port (16).

5. The eccentric impeller rotor of a water circulating vacuum pump as claimed in claim 1, wherein: the elastic cam column (31) is made of rubber.

6. The eccentric impeller rotor of a water circulating vacuum pump as claimed in claim 1, wherein: the double-shaft synchronous motor (2) and the pump body (1) are both arranged on the bottom plate, and the double output shafts of the double-shaft synchronous motor (2) are in transmission connection with the elastic cam columns (31).