CN214577717U

CN214577717U - Casing of single screw compressor

Info

Publication number: CN214577717U
Application number: CN202023308727.6U
Authority: CN
Inventors: 陈益超; 周中华
Original assignee: Haomi Power Equipment Co ltd
Current assignee: Haomi Power Equipment Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-02
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to a single screw compressor's casing, install a screw rod and two star gears in the casing, the star gear symmetry sets up the both sides at the screw rod, the casing includes integrated into one piece's screw rod chamber and two star wheel chambeies, the screw rod is installed the screw rod intracavity, every the star gear is installed at a star gear intracavity, wherein, the one end in screw rod chamber is sealed to set up the air inlet in this end, the lateral wall of one end is equipped with two exhaust holes in addition, and the outside of this lateral wall is equipped with the exhaust chamber, exhaust hole and exhaust chamber intercommunication, the bottom in exhaust chamber is equipped with the gas vent. The utility model discloses become open with the exhaust chamber design of casing, form confined cavity through the apron, the apron can make into an organic whole with the machine seal seat also can part. The casing is designed to be open, so that the casting complexity of the casing can be reduced, and the cleaning of the exhaust cavity is more convenient.

Description

Casing of single screw compressor

Technical Field

The utility model relates to a single screw compressor technical field, concretely relates to single screw compressor's casing.

Background

The single screw compressor is a meshing pair consisting of a cylindrical screw and two plane star wheels which are symmetrically arranged and is arranged in a shell. The screw groove, the inner wall of the shell (cylinder) and the star wheel tooth form a closed volume. The power is transmitted to the screw shaft, and the screw drives the star wheel to rotate. The gas enters the spiral groove from the gas suction end and is discharged through the gas discharge hole and the gas discharge cavity after being compressed. The star wheel acts as a piston of a reciprocating piston compressor, and when the star wheel teeth move relatively in the screw grooves, the closed volume is gradually reduced, and the gas is compressed.

The effect in exhaust chamber is the gas vent of discharging the aircraft nose below smoothly with two gas vents combustion gas of the inside screw rod of casing, and current single screw compressor all can set up comparatively complicated exhaust duct in the casing is inside, finally discharges compressed gas from the gas vent, and the higher problem of exhaust chamber casting process complexity cost can appear when the design in this structure.

Therefore, there is a need in the art for a single screw compressor casing that is simpler in process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure's single screw compressor's casing in order to overcome the defect that above-mentioned prior art exists.

In order to achieve the purpose of the present invention, the present application provides the following technical solutions.

In a first aspect, the application provides a single screw compressor's casing, install a screw rod and two star gears in the casing, the star gear symmetry sets up in the both sides of screw rod, its characterized in that, the casing includes integrated into one piece's screw rod chamber and two star wheel chambeies, the screw rod is installed the screw rod intracavity, every the star gear is installed at a star gear intracavity, wherein, the one end in screw rod chamber is sealed to set up the air inlet at this end, the lateral wall of one end is equipped with two exhaust holes in addition, and the outside of this lateral wall is equipped with the exhaust chamber, exhaust hole and exhaust chamber intercommunication, the bottom in exhaust chamber is equipped with the gas vent. After gas enters the shell of the single-screw compressor through the air inlet above the shell, the acting pressure of the closed volume generated by meshing the star wheel and the screw is increased, the gas reaches the side wall exhaust hole of the screw cavity and is then exhausted into the exhaust cavity, and the gas is exhausted out of the compressor head from the exhaust port below the compressor head through the exhaust cavity.

In one embodiment of the first aspect, the exhaust chamber is integrally formed and fixed with the housing.

In one embodiment of the first aspect, the outer side of the exhaust chamber is a removable cover plate. The cover plate is arranged to be detachable, and the cover plate is fixed before use, so that a closed exhaust cavity is formed, the complexity of casing casting is reduced, and the exhaust cavity is more convenient to clean.

In one embodiment of the first aspect, the end faces of the screw cavity are closed by a mechanical seal seat.

In one embodiment of the first aspect, the cover plate is integrally formed with the machine seal seat or is separate.

In one embodiment of the first aspect, where the star wheel engages the screw, the star wheel rotates in a direction from the air inlet end of the screw cavity to the end of the screw cavity where the air discharge cavity is located. The air inlet of the shell is arranged at one end of the screw cavity which is completely closed, so that the volume is gradually reduced from the air inlet end to the end of the exhaust cavity along with the meshing of the screw and the star wheel, and the air is compressed, so that the compressed air can be introduced into the exhaust cavity.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the exhaust cavity of the machine shell is designed to be open, a closed cavity is formed by the cover plate, and the cover plate and the machine seat can be manufactured into a whole or can be separated. The casing is designed to be open, so that the casting complexity of the casing can be reduced, and the cleaning of the exhaust cavity is more convenient.

Drawings

Fig. 1 is a schematic structural diagram of a single screw compressor housing of the present application.

In the attached drawing, 1 is a screw cavity, 2 is a star wheel cavity, 3 is an exhaust hole, 4 is an exhaust cavity, 5 is an exhaust port, 6 is a machine seal seat, and 7 is an air inlet.

Detailed Description

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as is understood by those of ordinary skill in the art to which the invention belongs. All numerical values recited herein as between the lowest value and the highest value are intended to mean all values between the lowest value and the highest value in increments of one unit when there is more than two units difference between the lowest value and the highest value.

In the following description of the embodiments of the present invention, it is noted that in the detailed description of the embodiments, all the features of the actual embodiments may not be described in detail in order to make the description concise and concise. Modifications and substitutions may be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the invention, and the resulting embodiments are within the scope of the invention.

Examples

The embodiments of the present invention will be described in detail below, and the embodiments are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

The single-screw compressor shell is structurally shown in figure 1, and comprises a screw cavity 1 and two star wheel cavities 2, wherein the screw cavity 1 is used for mounting a screw and a spindle thereof, the star wheel cavities 2 are arranged on the left side and the right side of the screw cavity 1 respectively, and each star wheel cavity 2 is used for mounting a star wheel and a rotating shaft thereof. In fig. 1, the front end and the rear end of the screw cavity 1 are both sealed by the mechanical seal seat 6 (the front end is not sealed in the figure, but in a sealed state in the actual use process, in the present application, the mechanical seal seat 6 refers to a whole set of parts such as the mechanical seal seat, the mechanical seal, the bearing, and the like, which is a conventional arrangement of a single screw compressor), the exhaust cavity 4 is arranged outside the front end side wall of the screw cavity 1, the rear end of the exhaust cavity 4 is integrally arranged with the housing, and the front end is sealed by a detachable cover body (the cover body is not shown in the figure, mainly for showing the internal structure and shape of the exhaust cavity 4, the cover body can be made into an integral structure with other parts). The lateral wall of 1 front end in screw chamber is equipped with two exhaust holes 3, and this exhaust hole 3 intercommunication exhaust chamber 4 and screw chamber 1, the bottom in exhaust chamber 4 sets up gas vent 5 for the discharge compressed gas. An air inlet 7 is arranged at the top of the rear end of the screw cavity 1, and the rotation direction of the star wheel is shown in figure 1, namely, the star wheel rotates from the rear end to the front end of the screw cavity 1 at the meshing part of the star wheel and the screw.

After gas enters a screw cavity 1 of the single-screw compressor through a gas inlet 7, the acting pressure of a closed volume generated by meshing of the star wheel and the screw is increased, the gas reaches an exhaust hole 3 at the front end of the screw cavity 1 and then is exhausted into an exhaust cavity 4, and then the gas is exhausted out of the shell from an exhaust port 5 at the bottom of the exhaust cavity 4.

The embodiments described above are intended to facilitate the understanding and appreciation of the application by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not limited to the embodiments herein, and those skilled in the art who have the benefit of this disclosure will appreciate that many modifications and variations are possible within the scope of the present application without departing from the scope and spirit of the present application.

Claims

1. The utility model provides a single screw compressor's casing, install a screw rod and two star gears in the casing, the star gear symmetry sets up the both sides at the screw rod, a serial communication port, the casing includes integrated into one piece's screw rod chamber and two star wheel chambeies, the screw rod is installed the screw rod intracavity, every the star gear is installed at a star gear intracavity, wherein, the one end in screw rod chamber is sealed to set up the air inlet at this end, the lateral wall of one end is equipped with two exhaust holes in addition, and the outside of this lateral wall is equipped with the exhaust chamber, exhaust hole and exhaust chamber intercommunication, the bottom in exhaust chamber is equipped with the gas vent.

2. The single screw compressor casing of claim 1, wherein the discharge chamber is integrally formed with the casing.

3. The single screw compressor casing of claim 1, wherein the outer side of the discharge chamber is a removable cover plate.

4. The casing of the single screw compressor according to claim 3, wherein both end faces of the screw chamber are closed by a machine seal housing.

5. The single screw compressor casing of claim 4, wherein the cover plate is integrally formed with the casing seat or is independently fixed thereto.

6. The casing of a single screw compressor according to claim 1, wherein the star wheel is rotated in a direction from an air inlet end of the screw chamber to an end of the screw chamber where the discharge chamber is provided, at a position where the star wheel is engaged with the screw.