CN212690356U

CN212690356U - Roots blower case

Info

Publication number: CN212690356U
Application number: CN202021518993.9U
Authority: CN
Inventors: 张永增
Original assignee: Zhangqiu De'an Machinery Manufacturing Co ltd
Current assignee: Zhangqiu De'an Machinery Manufacturing Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-12
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a roots's fan technical field discloses a roots's fan machine case, including quick-witted case, left rotor and right rotor are through rotatable left side and the right side of installing at quick-witted incasement portion of pivot, the outside end and the quick-witted incasement wall of left rotor and right rotor paste tightly, the both sides on the long limit of left rotor and right rotor all are fixed with the brush, and the brush is a plurality of, and the inner wall of brush and quick-witted case pastes tightly, the inboard embedding of brush is in the inside fixed plastic sheath of left rotor and right rotor, and the plastic sheath embedding is in the draw-in groove of the inside setting of left rotor and right rotor. The utility model discloses a long limit both sides surface at left rotor and right rotor all is fixed with the brush, in left rotor and right rotor pivoted, can brush the lubricating oil of chassis bottom portion and coat at the quick-witted incasement wall surface, guarantees to expect good lubricated effect and sealed effect, reduces the wearing and tearing of equipment, and is comparatively practical, is fit for extensively promoting and using.

Description

Roots blower case

Technical Field

The utility model relates to a roots's fan technical field specifically is a roots's fan machine case.

Background

At present, a Roots blower belongs to a positive displacement blower, and an impeller end face and front and rear end covers of the blower. The principle is a rotary compressor which compresses and conveys gas by utilizing the relative motion of two blade-shaped rotors in a cylinder. The Roots blower is composed of casing, wall plate, belt wheel, vane wheel, inlet and outlet silencer and oil tank.

Roots's fan is in the use, and its rotor outside and quick-witted incasement wall contact, and the contact surface passes through lubricating oil contact, not only can play sealed effect, still possesses lubricated effect and reduces equipment wear, however, under the effect of gravity, lubricating oil is difficult to attached on the both sides inner wall of quick-witted case for it is not good to lubricate and seal the effect. Therefore, a roots blower case is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roots fan machine case, long limit both sides surface through at left rotor and right rotor all is fixed with the brush, in left rotor and right rotor pivoted time, can brush the lubricating oil of chassis bottom portion and coat at the quick-witted incasement wall surface, guarantees to expect good lubrication effect and sealed effect, reduces the wearing and tearing of equipment, and is comparatively practical, is fit for extensively promoting and using, has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a Roots blower case comprises a case, a left rotor and a right rotor, wherein the left rotor and the right rotor are rotatably arranged on the left side and the right side in the case through rotating shafts;

the terminal and the quick-witted incasement wall in the outside of left rotor and right rotor paste tightly, the both sides on the long limit of left rotor and right rotor all are fixed with the brush, and the brush is a plurality ofly, and the inner wall of brush and quick-witted case pastes tightly, the inboard embedding of brush is in the inside fixed plastic sheath of left rotor and right rotor, and the plastic sheath embedding is in the draw-in groove of the inside setting of left rotor and right rotor, the below middle part of machine case is connected with the outlet duct, and outlet duct and quick-witted incasement portion intercommunication.

As an optimal implementation manner of the present invention, the inner walls of the machine cases on both sides of the outlet duct are provided with arc plates, and the surfaces of the arc plates are attached to the side surfaces of the left rotor and the right rotor.

As a preferred embodiment of the present invention, the upper end middle part of the case is connected with an intake pipe, and the intake pipe communicates with the inside of the case.

As a preferred embodiment of the present invention, the arc plate and the inner portion of the bottom of the case are connected to form an integral structure.

As a preferred embodiment of the present invention, the rotating shafts of the left rotor and the right rotor are both connected to the external driving device in a transmission manner.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a roots fan machine case all is fixed with the brush through the long limit both sides surface at left rotor and right rotor, in left rotor and right rotor pivoted, can brush the lubricating oil of bottom of the case portion and coat at the quick-witted incasement wall surface, guarantees to expect good lubricated effect and sealed effect, reduces the wearing and tearing of equipment, and is comparatively practical, is fit for extensively promoting and using.

2. The utility model discloses a roots fan machine case all is provided with the arc board on the quick-witted incasement wall through making outlet duct top both sides, and the surface laminating left rotor of arc board and the side surface of right rotor, at the arc board that the below both sides set up, can avoid piling up the lubricating oil of quick-witted incasement portion below and spill from the outlet duct and cause the waste.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of the overall structure of the roots blower case of the present invention;

fig. 2 is a detailed structural schematic diagram of a position a of the roots blower case of the present invention.

In the figure: 1. a chassis; 2. a left rotor; 3. a right rotor; 4. a brush; 5. an air inlet pipe; 6. an air outlet pipe; 7. an arc plate; 8. a rotating shaft; 9. a plastic sheath; 10. a clamping groove.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the utility model discloses in provide only supply the reference with the model of electrical apparatus. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the present invention can be understood in specific situations.

Referring to fig. 1-2, the present invention provides a technical solution: a Roots blower case comprises a case 1, a left rotor 2 and a right rotor 3, wherein the left rotor 2 and the right rotor 3 are rotatably arranged on the left side and the right side in the case 1 through a rotating shaft 8;

the terminal and the 1 inner wall of quick-witted case of outside of left rotor 2 and right rotor 3 paste tightly, the both sides on the long limit of left rotor 2 and right rotor 3 all are fixed with brush 4, and brush 4 is a plurality of, and brush 4 pastes tightly with the inner wall of quick-witted case 1, the inboard embedding of brush 4 is in the inside fixed plastic sheath 9 of left rotor 2 and right rotor 3, and the plastic sheath 9 embedding is in the draw-in groove 10 of the inside setting of left rotor 2 and right rotor, the below middle part of machine case 1 is connected with outlet duct 6, and outlet duct 6 and the inside intercommunication of machine case 1.

In this embodiment (see fig. 1 and 2), the brushes 4 are fixed on the surfaces of the two sides of the long sides of the left rotor 2 and the right rotor 3, so that when the left rotor 2 and the right rotor 3 rotate, the lubricating oil at the bottom of the case 1 can be brushed and coated on the surface of the inner wall of the case 1, thereby ensuring good lubricating effect and sealing effect of the material and reducing the wear of the equipment.

Arc plates 7 are arranged on the inner walls of the case 1 on the two sides above the air outlet pipe 6, and the surfaces of the arc plates 7 are attached to the side surfaces of the left rotor 2 and the right rotor 3.

In this embodiment (see fig. 1), the arc plates 7 are disposed on the inner walls of the case 1 on the two sides above the air outlet pipe 6, the surfaces of the arc plates 7 are attached to the side surfaces of the left rotor 2 and the right rotor 3, and the arc plates 7 disposed on the two sides below the air outlet pipe can prevent the lubricating oil accumulated below the case 1 from leaking out of the air outlet pipe 6 and causing waste.

Wherein, the upper end middle part of quick-witted case 1 is connected with intake pipe 5, and intake pipe 5 and the inside intercommunication of quick-witted case 1.

In this embodiment (see fig. 1), air is introduced through the intake pipe 5.

Wherein, the arc plate 7 and the lower inner part of the case 1 are connected into an integral structure.

And the rotating shafts 8 of the left rotor 2 and the right rotor 3 are in transmission connection with external driving equipment.

It should be noted that the utility model relates to a roots blower case, which comprises a case 1, a left rotor 2, a right rotor 3, a brush 4, an air inlet pipe 5, an air outlet pipe 6, an arc plate 7, a rotating shaft 8, a plastic sleeve 9 and a clamping groove 10, wherein the components are all universal standard components or components known by technicians in the field, the structure and the principle of the components can be known by technicians in the field through technical manuals or conventional experimental methods, when the roots blower case works, partial lubricating oil is filled below the inside of the case 1, when the left rotor 2 and the right rotor 3 are driven to rotate by external driving equipment, external air can enter from the air inlet pipe 5 and be discharged from the air outlet pipe 6, the brush 4 fixed on the surfaces of the left rotor 2 and the right rotor 3 brushes the lubricating oil, and the lubricating oil is coated on the surface of the inner wall of the case 1 in the rotating process, so as to ensure the lubrication between the left rotor 2 and the inner wall of the case 1 and the, meanwhile, the sealing performance is improved, and the service life of the equipment is prolonged.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a roots's fan machine case, includes quick-witted case (1), left rotor (2) and right rotor (3), its characterized in that: the left rotor (2) and the right rotor (3) are rotatably arranged on the left side and the right side in the case (1) through a rotating shaft (8);

the outside end of left rotor (2) and right rotor (3) pastes tightly with quick-witted case (1) inner wall, the both sides on the long limit of left rotor (2) and right rotor (3) all are fixed with brush (4), and brush (4) are a plurality of, and brush (4) paste tightly with the inner wall of quick-witted case (1), the inboard embedding of brush (4) is in left rotor (2) and the inside fixed plastic sheath (9) of right rotor (3), and plastic sheath (9) embedding is in draw-in groove (10) of left rotor (2) and the inside setting of right rotor (3), the below middle part of machine case (1) is connected with outlet duct (6), and outlet duct (6) and quick-witted case (1) inside intercommunication.

2. The roots blower case according to claim 1, wherein: arc plates (7) are arranged on the inner walls of the case (1) on the two sides above the air outlet pipe (6), and the surfaces of the arc plates (7) are attached to the side surfaces of the left rotor (2) and the right rotor (3).

3. The roots blower case according to claim 1, wherein: the upper end middle part of quick-witted case (1) is connected with intake pipe (5), and intake pipe (5) and the inside intercommunication of quick-witted case (1).

4. The roots blower case according to claim 2, wherein: the arc plate (7) is connected with the inner part below the case (1) to form an integral structure.

5. The roots blower case according to claim 1, wherein: and the rotating shafts (8) of the left rotor (2) and the right rotor (3) are in transmission connection with external driving equipment.