CN113494454A

CN113494454A - Vane rotary compressor

Info

Publication number: CN113494454A
Application number: CN202110791268.1A
Authority: CN
Inventors: 李炳强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-10-12
Anticipated expiration: 2041-07-13

Abstract

The invention discloses a vane rotary compressor, which comprises a shell assembly, a rotating shaft part and a rotating mechanism, wherein the shell assembly is provided with a rotating cavity, a main input channel and a main output channel, the rotating shaft part is rotationally connected with the shell assembly and is eccentrically arranged relative to the rotating cavity, the rotating mechanism comprises a rotating seat and at least one group of vane sets, the rotating seat is connected with the rotating shaft part and is positioned in the rotating cavity, the rotating seat is provided with a first pressure conveying channel, each group of vane sets comprises a first rotating vane and a second rotating vane which are connected with the rotating seat and can be opened and closed in a relative rotation manner, and both can be abutted against the wall surface of the rotary cavity under the action of the fluid pressure in the first pressure delivery channel, so that the same group of rotary vanes can separate a compression cavity in the rotary cavity, the compression cavity has an expansion state and a compression state, and the main input channel and the main output channel can be respectively communicated with the compression cavity in the expansion state and the compression state. The invention has simple and reasonable structure, can ensure the stable and reliable butting of the rotating blades and improve the use reliability.

Description

Vane rotary compressor

Technical Field

The invention relates to the technical field of compressors, in particular to a blade-rotating compressor.

Background

The existing compressor types are various, such as a piston compressor, a screw compressor, a scroll compressor, a rotary compressor, and the like, and for the existing rotary compressor, a rotating shaft of the existing rotary compressor is generally eccentrically arranged relative to a rotating cavity, the rotating mechanism is arranged in the rotating cavity and connected with the rotating shaft, the rotating mechanism comprises a plurality of rotating blades, each rotating blade is abutted against the wall surface of the rotating cavity through an elastic member such as a spring or a torsional spring, so as to divide the rotating cavity into compression cavities with different sizes, the rotating mechanism is driven by the rotating shaft to eccentrically rotate, so that each compression cavity divided by each rotating blade generates volume change, and further fluid is sucked, compressed and discharged. The structure of the rotary compressor has at least the following disadvantages: 1. the elastic part has a certain service life, and elastic failure can be generated after the elastic part is used for a long time, so that the service life of the compressor is influenced, and regular maintenance is needed; 2. the arrangement of the elastic piece leads the connection structure of the swing mechanism to be complicated and the assembly and disassembly to be troublesome; 3. the butt structure between the rotary vane and the wall surface of the rotary cavity is simple, the butt is carried out by the elastic force of the elastic piece, a gap is possibly generated, fluid leakage of each compression cavity is caused, and the compressor is difficult to achieve a large compression ratio.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the present invention provides a vane rotary compressor, which has a simple and rational structure, can stably and reliably abut against a rotating blade, and can improve the use reliability and the service life of the compressor by inputting a fluid into a first pressure input passage and abutting the first rotating blade and a second rotating blade against a wall surface of a rotating cavity under the action of the fluid pressure.

The vane rotary compressor according to the embodiment of the invention comprises a shell assembly, a rotating shaft member and a rotating mechanism, wherein the shell assembly is provided with a rotating cavity, a main input channel for fluid to enter and a main output channel for fluid to discharge, the rotating shaft member is rotatably connected to the shell assembly, the rotating shaft member is eccentrically arranged relative to the rotating cavity, the rotating mechanism comprises a rotating seat and at least one set of rotating vane set, the rotating seat is connected to the rotating shaft member and is positioned in the rotating cavity, each set of rotating vane set comprises a first rotating vane and a second rotating vane, the first rotating vane and the second rotating vane are rotatably connected to the rotating seat and can be opened and closed relatively, the rotating seat is provided with a first pressure transmission channel for fluid to enter, and the first rotating vane and the second rotating vane can abut against the wall surface of the rotating cavity under the action of fluid pressure in the first pressure transmission channel, so that the first and second rotating blades in the same set of the rotating blades can divide a compression chamber in the rotating chamber, the compression chamber having an expanded state and a compressed state, the main input passage being communicable with the compression chamber in the expanded state, and the main output passage being communicable with the compression chamber in the compressed state.

According to the blade rotary compressor provided by the embodiment of the invention, the following beneficial effects are at least achieved: when the rotary compressor is used, the rotary shaft part eccentrically rotates relative to the rotary cavity and drives the rotary blade group on the rotary shaft part to rotate through the rotary seat, fluid is input into the first pressure input channel, the first rotary blade and the second rotary blade are abutted to the wall surface of the rotary cavity under the action of fluid pressure, the first rotary blade and the second rotary blade can relatively rotate and open in the rotating process due to the eccentric rotation of the rotary shaft part, the volume of the compression cavity is increased in the process that the first rotary blade and the second rotary blade relatively rotate and open, the volume of the compression cavity is in an expansion state, the volume of the compression cavity is reduced in the process that the first rotary blade and the second rotary blade relatively rotate and close, the rotary shaft part is in a compression state, the rotary shaft part drives the rotary mechanism to rotate in the rotary cavity, the compression cavity is alternately changed between the expansion state and the compression state, the compression cavity is communicated with the main input channel when the compression cavity is in the expansion state, and the fluid is sucked into the compression cavity from the main input channel, when the compression cavity is in a compression state, the compression cavity is communicated with the main output channel, and fluid is compressed and discharged from the compression cavity through the main output channel, so that the effective work of the compressor is realized. The invention has simple and reasonable structure, and the first rotating blade and the second rotating blade are abutted against the wall surface of the rotating cavity under the action of the fluid pressure in the first pressure conveying channel, so that the abutting of the rotating blades is stable and reliable, and the service reliability and the service life of the compressor are improved.

According to some embodiments of the invention, a first abutting member is rotatably connected to an end of the first rotating blade, a second abutting member is rotatably connected to an end of the second rotating blade, the first rotating blade abuts against the wall surface of the turning cavity through the first abutting member, an abutting surface of the first abutting member is matched with the wall surface of the turning cavity, the second rotating blade abuts against the wall surface of the turning cavity through the second abutting member, and an abutting surface of the second abutting member is matched with the wall surface of the turning cavity.

According to some embodiments of the invention, each of the first rotating blade and the second rotating blade is provided with a second pressure delivery channel, the first pressure delivery channel is communicated with the second pressure delivery channel, and each of the first abutting piece and the second abutting piece can rotate to abut against the wall surface of the rotating cavity under the action of the fluid pressure in the corresponding second pressure delivery channel.

According to some embodiments of the invention, a first pressure chamber is formed between the wall surface of the rotary seat and the wall surface of the first rotating blade, a second pressure chamber is formed between the wall surface of the rotary seat and the wall surface of the second rotating blade, the first pressure delivery channel is respectively communicated with the first pressure chamber and the second pressure chamber, a third pressure chamber is formed between the wall surface of the first rotating blade and the wall surface of the first abutting member, a fourth pressure chamber is formed between the wall surface of the second rotating blade and the wall surface of the second abutting member, the third pressure chamber and the fourth pressure chamber are respectively communicated with the corresponding second pressure delivery channel, the first pressure chamber is expandable to enable the first rotating blade to rotate, the second pressure chamber is expandable to enable the second rotating blade to rotate, the third pressure chamber can expand to can drive the first butt piece rotate to with the wall butt of gyration chamber, the fourth pressure chamber can expand to can drive the second butt piece rotate to with the wall butt of gyration chamber.

According to some embodiments of the present invention, a first connecting shaft is disposed on the first rotating blade, the first abutting member and the first rotating blade are rotatably connected through the first connecting shaft, a first bearing is sleeved on the first connecting shaft, a second connecting shaft is disposed on the second rotating blade, the second abutting member and the second rotating blade are rotatably connected through the second connecting shaft, a second bearing is sleeved on the second connecting shaft, and an outer side of the first bearing and an outer side of the second bearing can both abut against a wall surface of the rotation cavity, so that both the first bearing and the second bearing can roll along the wall surface of the rotation cavity.

According to some embodiments of the present invention, the sets of rotating blades are provided with at least two sets and are uniformly spaced along a circumferential direction of the rotary base, and in two adjacent sets of the sets, the first rotating blade of one set and the second rotating blade of the other set can divide an auxiliary cavity in the rotary cavity, the auxiliary cavity and the compression cavity are alternately distributed along the circumferential direction of the rotary base, and the auxiliary cavity has an expansion state and a compression state.

According to some embodiments of the invention, a third abutting member is rotatably connected to the first rotating blade, a fourth abutting member is rotatably connected to the second rotating blade, a first scraping blade is arranged on the third abutting member, a second scraping blade is arranged on the fourth abutting member, the first scraping blade and the second scraping blade are both located in the auxiliary cavity, a second pressure delivery channel is arranged on each of the first rotating blade and the second rotating blade, the first pressure delivery channel is communicated with the second pressure delivery channel, and the third abutting member and the fourth abutting member are both capable of rotating under the action of fluid pressure in the corresponding second pressure delivery channels, so that the first scraping blade and the second scraping blade can be abutted against the wall surface of the rotary cavity.

According to some embodiments of the invention, the housing assembly is further provided with an auxiliary input channel for fluid to enter and an auxiliary output channel for fluid to exit, the auxiliary input channel is communicated with the auxiliary chamber and is provided with a first one-way valve structure, the first pressure delivery channel is communicated with the auxiliary chamber and is provided with a second one-way valve structure, the auxiliary output channel is communicated with the first pressure delivery channel, the first one-way valve structure enables communication between the auxiliary input channel and the auxiliary chamber in an expanded state and enables communication between the auxiliary input channel and the auxiliary chamber in a compressed state, and the second one-way valve structure enables communication between the first pressure delivery channel and the auxiliary chamber in a compressed state and enables communication between the first pressure delivery channel and the auxiliary chamber in an expanded state.

According to some embodiments of the present invention, the housing assembly further includes a first lubrication chamber and a second lubrication chamber, the rotating shaft is connected to a third bearing and a fourth bearing on two sides of the rotating mechanism, the third bearing is located in the first lubrication chamber, the fourth bearing is located in the second lubrication chamber, the first lubrication chamber is communicated with the auxiliary input channel, and the second lubrication chamber is communicated with the first pressure input channel.

According to some embodiments of the present invention, the housing assembly is provided with an accommodating cavity, the housing assembly includes an inner cylinder sleeve, the inner cylinder sleeve is movably disposed in the accommodating cavity, the rotation cavity is disposed on the inner cylinder sleeve, the inner cylinder sleeve divides the accommodating cavity into a first balance cavity and a second balance cavity, the second balance cavity is communicated with the main output channel, the first balance cavity can apply a preset acting force to the inner cylinder sleeve, and the inner cylinder sleeve can move relative to the accommodating cavity to change an eccentric position of the rotating shaft member in the rotation cavity.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a vane rotary compressor according to an embodiment of the present invention;

FIG. 2 is an exploded view of the vane compressor of FIG. 1;

FIG. 3 is an exploded view of the vane compressor of FIG. 2 from another perspective;

FIG. 4 is one of the schematic cross-sectional views of the vane compressor of FIG. 1;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a second schematic cross-sectional view of the vane compressor of FIG. 1;

FIG. 7 is a third schematic cross-sectional view of the vane compressor of FIG. 1;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is a schematic cross-sectional view of the swing mechanism of FIG. 7 in another condition;

FIG. 10 is an enlarged view of portion C of FIG. 9;

FIG. 11 is a schematic structural diagram of the slewing mechanism in FIG. 7;

fig. 12 is a schematic sectional view of a vane rotary compressor according to another embodiment of the present invention.

Reference numerals:

the rotary compressor comprises a shell assembly 100, a rotary cavity 101, a compression cavity 101a, an auxiliary cavity 101b, a main input channel 102, a main output channel 103, an auxiliary input channel 104, an auxiliary output channel 105, a first lubricating cavity 106, a second lubricating cavity 107, a containing cavity 108, a first balance cavity 108a, a second balance cavity 108b, an elastic part 110, an inner cylinder sleeve 120, a first shell 130, a first annular groove 131, a second shell 140, a connecting passage 141, an outer cylinder sleeve 150, a second annular groove 151 and an adjusting part 160;

the rotary shaft part 200, the first channel 201, the second channel 202, the first one-way valve structure 210, the first stop-go ball 211, the second stop-go ball 212, the second one-way valve structure 220, the third stop-go ball 221, the fourth stop-go ball 222, the third bearing 230 and the fourth bearing 240;

a rotary seat 300, a first pressure input channel 301, a third channel 302 and a fourth channel 303;

the rotary blade group 400, the second pressure transmission channel 401, the first pressure chamber 402, the second pressure chamber 403, the third pressure chamber 404, the fourth pressure chamber 405, the fifth pressure chamber 406, the sixth pressure chamber 407, the first rotating blade 410, the first abutting member 411, the first connecting shaft 412, the first bearing 413, the second rotating blade 420, the second abutting member 421, the second connecting shaft 422, the second bearing 423, the third abutting member 430, the first scraping blade 431, the fourth abutting member 440, and the second scraping blade 441.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that if an orientation description is referred to, for example, the directions of orientation or positional relationship indicated as up, down, etc. are based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if several, more than, less than, more than, above, below, or within words appear, several means are one or more, several means are two or more, more than, less than, more than, etc. are understood as not including the number, and more than, less than, within, etc. are understood as including the number.

If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, 6 and 7, a vane rotary compressor includes a casing assembly 100, a rotary shaft 200 and a rotary mechanism, the casing assembly 100 is provided with a rotary cavity 101, a main input channel 102 for fluid to enter and a main output channel 103 for fluid to discharge, the rotary shaft 200 is rotatably connected to the casing assembly 100, the rotary shaft 200 is eccentrically arranged with respect to the rotary cavity 101, the rotary mechanism includes a rotary base 300 and at least one set of rotary vane sets 400, the rotary base 300 is connected to the rotary shaft 200 and located in the rotary cavity 101, each set of rotary vane sets 400 includes a first rotary vane 410 and a second rotary vane 420, the first rotary vane 410 and the second rotary vane 420 are rotatably connected to the rotary base 300 and can be opened and closed with respect to each other, the rotary base 300 is provided with a first pressure input channel 301 for fluid to enter, the first rotary vane 410 and the second rotary vane 420 can be abutted against the wall surface of the rotary cavity 101 under the action of fluid pressure in the first pressure input channel 301, so that the first rotating blades 410 and the second rotating blades 420 in the same set of the rotating blade group 400 can partition the compression chamber 101a in the rotating chamber 101, the compression chamber 101a has an expanded state and a compressed state, the main input passage 102 can communicate with the compression chamber 101a in the expanded state, and the main output passage 103 can communicate with the compression chamber 101a in the compressed state.

It can be understood that, as shown in fig. 6, 7, 8 and 10, in use, the rotating shaft member 200 rotates eccentrically relative to the rotating cavity 101 and drives the rotating blade set 400 thereon to rotate through the rotating seat 300, and the first rotating blade 410 and the second rotating blade 420 abut against the wall surface of the rotating cavity 101 under the action of the fluid pressure by inputting the fluid into the first pressure input channel 301, so that the first rotating blade 410 and the second rotating blade 420 in the same set of rotating blade set 400 can separate the compression cavity 101a in the rotating cavity 101; due to the eccentric rotation of the rotating shaft 200, the first rotating blade 410 and the second rotating blade 420 can rotate relatively to open and close during the rotation, referring to fig. 7 and 9, during the relative rotation and opening of the first rotating blade 410 and the second rotating blade 420, the volume of the compression cavity 101a is increased and is in an expansion state, during the relative rotation and closing of the first rotating blade 410 and the second rotating blade 420, the volume of the compression cavity 101a is decreased and is in a compression state, the rotating shaft 200 drives the revolving mechanism to revolve in the revolving cavity 101, so that the compression cavity 101a changes alternately between the expansion state and the compression state, when the compression cavity 101a is in the expansion state, the compression cavity is communicated with the main input channel 102, the fluid is sucked into the compression cavity 101a from the main input channel 102, when the compression cavity 101a is in the compression state, the compression cavity 101a is communicated with the main output channel 103, the fluid is compressed and discharged from the compression cavity 101a through the main output channel 103, the effective work of the compressor is realized. The structure of the invention is simple and reasonable, the first rotating blade 410 and the second rotating blade 420 are abutted against the wall surface of the rotary cavity 101 under the action of the fluid pressure in the first pressure transmission channel 301, the abutment of the rotating blades is stable and reliable, and the use reliability and the service life of the compressor are improved.

In practical applications, the specific structures of the housing assembly 100, the shaft member 200, the swing mechanism, etc. can be set according to practical needs, and will not be described in detail herein, and will be described in detail below.

In some embodiments, a first abutting member 411 is rotatably connected to an end of the first rotating blade 410, a second abutting member 421 is rotatably connected to an end of the second rotating blade 420, the first rotating blade 410 abuts against the wall surface of the rotation cavity 101 through the first abutting member 411, an abutting surface of the first abutting member 411 is matched with the wall surface of the rotation cavity 101, the second rotating blade 420 abuts against the wall surface of the rotation cavity 101 through the second abutting member 421, and an abutting surface of the second abutting member 421 is matched with the wall surface of the rotation cavity 101.

It can be understood that, as shown in fig. 7, 8, 10 and 11, the first abutting member 411 is rotatably connected to an end of the first rotating blade 410, the second abutting member 421 is rotatably connected to an end of the second rotating blade 420, the first rotating blade 410 abuts against a wall surface of the rotating cavity 101 through the first abutting member 411, the second rotating blade 420 abuts against a wall surface of the rotating cavity 101 through the second abutting member 421, so that the first rotating blade 410 and the second rotating blade 420 in the same set of blade groups 400 separate the compressing cavity 101a in the rotating cavity 101, the abutting surface of the first abutting member 411 and the abutting surface of the second abutting member 421 are both adapted to the wall surface of the rotating cavity 101, so that the end of the first rotating blade 410 and the end of the second rotating blade 420 can achieve a good abutting and separating effect, the reliability of the abutting is improved, the possibility of fluid leakage from the compressing cavity 101a due to the generation of the gap is reduced, and the sealing effect of the compressing cavity 101a is improved, is convenient for use.

In practical applications, the ends of the first rotating blade 410 and the second rotating blade 420 may be rotatably connected with rolling columns, so that when the first rotating blade 410 and the second rotating blade 420 abut against and rotate relative to the wall surface of the rotation cavity 101, the rotation of the first rotating blade 410 and the second rotating blade 420 may be relatively smooth, and the specific structures of the first abutting member 411 and the second abutting member 421 may be set according to practical needs, which is not limited herein.

In some embodiments, each of the first rotating blade 410 and the second rotating blade 420 is provided with a second pressure conveying channel 401, the first pressure conveying channel 301 is communicated with the second pressure conveying channel 401, and each of the first abutting piece 411 and the second abutting piece 421 can rotate to abut against the wall surface of the rotating cavity 101 under the action of the fluid pressure in the corresponding second pressure conveying channel 401.

It can be understood that, as shown in fig. 8 and 9, the second pressure delivery channel 401 is disposed on each of the first rotating blade 410 and the second rotating blade 420, when in use, the fluid in the first pressure delivery channel 301 is input into the second pressure delivery channel 401, and under the action of the fluid pressure in the corresponding second pressure delivery channel 401, the first abutting piece 411 and the second abutting piece 421 can both rotate to abut against the wall surface of the rotating cavity 101, so as to achieve a better abutting effect, further improve the reliability of the abutting, and achieve a better separation effect. In practical applications, the specific structures of the first pressure delivery channel 301 and the second pressure delivery channel 401 can be set according to actual needs, as long as the requirements of enabling the first rotating blade 410 and the second rotating blade 420 to rotate and enabling the ends thereof to abut against the wall surface of the rotating cavity 101 and the requirements of enabling the first abutting member 411 and the second abutting member 421 to rotate and to abut against the wall surface of the rotating cavity 101 can be satisfied, and the description will be specifically given below.

In some embodiments, a first pressure chamber 402 is formed between the wall surface of the rotary base 300 and the wall surface of the first rotary blade 410, a second pressure chamber 403 is formed between the wall surface of the rotary base 300 and the wall surface of the second rotary blade 420, the first pressure delivery passage 301 is respectively communicated with the first pressure chamber 402 and the second pressure chamber 403, a third pressure chamber 404 is formed between the wall surface of the first rotary blade 410 and the wall surface of the first abutting member 411, a fourth pressure chamber 405 is formed between the wall surface of the second rotary blade 420 and the wall surface of the second abutting member 421, the third pressure chamber 404 and the fourth pressure chamber 405 are respectively communicated with the corresponding second pressure delivery passage 401, the first pressure chamber 402 can be expanded to drive the first rotary blade 410 to rotate, the second pressure chamber 403 can be expanded to drive the second rotary blade 420 to rotate, the third pressure chamber 404 can be expanded to drive the first abutting member 411 to rotate to abut against the wall surface of the rotary chamber 101, the fourth pressure chamber 405 is expandable to enable the second abutment 421 to be urged into abutment with the wall surface of the turn chamber 101.

It can be understood that, as shown in fig. 8 and 10, a first pressure chamber 402 is formed between the wall surface of the rotary base 300 and the wall surface of the first rotating blade 410 in a matching manner, a second pressure chamber 403 is formed between the wall surface of the rotary base 300 and the wall surface of the second rotating blade 420 in a matching manner, a third pressure chamber 404 is formed between the wall surface of the first rotating blade 410 and the wall surface of the first abutting member 411 in a matching manner, and a fourth pressure chamber 405 is formed between the wall surface of the second rotating blade 420 and the wall surface of the second abutting member 421 in a matching manner, when the fluid pressure in the first pressure delivery passage 301 is increased, the pressure in the first pressure chamber 402 and the second pressure chamber 403 is increased, so that the fluid can expand and act on the corresponding first rotating blade 410 and second rotating blade 420 to cause the fluid to rotate, and the fluid in the first pressure delivery passage 301 passes through the corresponding second pressure delivery passage 401 and enters the third pressure chamber 404 and the fourth pressure chamber 404 and the fluid in the corresponding second pressure passage 401 The chamber 405, and likewise the third pressure chamber 404 and the fourth pressure chamber 405, expands and forces the corresponding first and

second abutments

411 and 421 so that they rotate into abutment with the wall surface of the turnaround chamber 101. The structure is simple, the connecting structure of the swing mechanism can be simplified, the assembly or disassembly of the swing mechanism is convenient, and the use is convenient.

In practical application, besides the above structure, a telescopic rod structure may also be provided, the first pressure conveying channel 301 and the second pressure conveying channel 401 are provided in corresponding telescopic rods, and the telescopic rods are pushed and retracted by fluid pressure to rotate the corresponding rotating blades or abutting members.

In some embodiments, a first connecting shaft 412 is disposed on the first rotating blade 410, the first abutting member 411 and the first rotating blade 410 are rotatably connected through the first connecting shaft 412, a first bearing 413 is sleeved on the first connecting shaft 412, a second connecting shaft 422 is disposed on the second rotating blade 420, the second abutting member 421 and the second rotating blade 420 are rotatably connected through the second connecting shaft 422, a second bearing 423 is sleeved on the second connecting shaft 422, and both an outer side of the first bearing 413 and an outer side of the second bearing 423 can abut against a wall surface of the rotation cavity 101, so that the first bearing 413 and the second bearing 423 can roll along the wall surface of the rotation cavity 101.

As shown in fig. 8, 10 and 11, when the first rotating blade 410 and the second rotating blade 420 rotate along the wall surface of the rotating cavity 101, the first abutting member 411 and the second abutting member 421 both abut against the wall surface of the rotating cavity 101 and move along the wall surface, and the outer side of the first bearing 413 and the outer side of the second bearing 423 both abut against the wall surface of the rotating cavity 101, so that both can roll along the wall surface of the rotating cavity 101, so that the rotation of the first rotating blade 410 and the second rotating blade 420 can be relatively smooth, the rotating mechanism can be applied to a high rotating speed, the wear can be reduced, and the first connecting shaft 412 and the second connecting shaft 422 can be applied with a good force effect, the radial shear force can be reduced, and the service life can be prolonged. In practical applications, the specific structures of the first bearing 413 and the second bearing 423 can be set according to practical application needs, and those skilled in the art should understand that the specific structures can be set accordingly.

In some embodiments, the sets of rotating blades 400 are provided with at least two sets and are uniformly spaced along the circumferential direction of the rotary base 300, and in two adjacent sets of rotating blades 400, the first rotating blade 410 of one set of rotating blades 400 and the second rotating blade 420 of the other set of rotating blades 400 can divide the auxiliary chamber 101b in the rotary chamber 101, the auxiliary chamber 101b and the compression chamber 101a are alternately distributed along the circumferential direction of the rotary base 300, and the auxiliary chamber 101b has an expansion state and a compression state.

It can be understood that, as shown in fig. 7 and 11, two sets of rotating blades 400 are provided and symmetrically disposed on both sides of the rotating base 300, referring to fig. 11, the first rotating blade 410 and the second rotating blade 420 positioned on the left side of the rotating base 300 form one set of rotating blades 400, the first rotating blade 410 and the second rotating blade 420 positioned on the right side of the rotating base 300 form another set of rotating blades 400, referring to fig. 7, the first rotating blade 410 and the second rotating blade 420 in the same set of rotating blades 400 separate a compression cavity 101a in the rotating cavity 101, in two adjacent sets of rotating blades 400, the first rotating blades 410 of one group of the rotating blade sets 400 and the second rotating blades 420 of the other group of the rotating blade sets 400 can separate an auxiliary cavity 101b in the rotating cavity 101, the two groups of the rotating blade sets 400 correspondingly separate four cavities, namely two compression cavities 101a and two auxiliary cavities 101b, in the rotating cavity 101, and the auxiliary cavities 101b and the compression cavities 101a are alternately distributed along the circumferential direction of the rotating base 300; in the process of rotating the swing mechanism shown in fig. 7 in the clockwise direction to the state shown in fig. 9 in conjunction with fig. 7 and 9, the compression pockets 101a at the left side in fig. 7 are gradually compressed, and discharges the fluid through the main output passage 103, the lower auxiliary chamber 101b is also gradually compressed, the right compression chamber 101a in fig. 7 is gradually expanded, and sucks fluid through the main input passage 102, the upper auxiliary chamber 101b is also gradually expanded, and, in use, the auxiliary chamber 101b may serve as a chamber for partitioning between the adjacent compression chambers 101a, which can be filled with cooling liquid or lubricating liquid or the like to realize the flow of the cooling liquid or lubricating liquid by the expansion and compression thereof to realize the cooling and lubricating effect, when the fluid compressed by the compression chamber 101a is gas, the auxiliary chamber 101b is filled with liquid to perform a certain sealing function to separate the compression chamber 101a, thereby improving the reliability of compression.

In practical applications, the rotary vane sets 400 may be further configured into three, four or more sets, and the specific structure of the rotary base 300 may be changed according to the specific configuration of the rotary vane sets 400, which will be understood by those skilled in the art.

In some embodiments, a third abutting member 430 is rotatably connected to the first rotating blade 410, a fourth abutting member 440 is rotatably connected to the second rotating blade 420, a first scraping blade 431 is disposed on the third abutting member 430, a second scraping blade 441 is disposed on the fourth abutting member 440, the first scraping blade 431 and the second scraping blade 441 are both located in the auxiliary cavity 101b, a second pressure delivery channel 401 is disposed on each of the first rotating blade 410 and the second rotating blade 420, the first pressure delivery channel 301 is communicated with the second pressure delivery channel 401, and the third abutting member 430 and the fourth abutting member 440 can rotate under the action of fluid pressure in the corresponding second pressure delivery channel 401, so that the first scraping blade 431 and the second scraping blade 441 can both abut against the wall surface of the rotating cavity 101.

As shown in fig. 7, 8, 10 and 11, the first rotating blade 410 is connected with the third abutting member 430 in a rotating manner, the second rotating blade 420 is connected with the fourth abutting member 440 in a rotating manner, the wall surface of the first rotating blade 410 and the wall surface of the third abutting member 430 are formed with the fifth pressure chamber 406 in a matching manner, the wall surface of the second rotating blade 420 and the wall surface of the fourth abutting member 440 are formed with the sixth pressure chamber 407 in a matching manner, and when in use, the fluid in the second pressure delivery passage 401 of the corresponding rotor blade enters the fifth pressure chamber 406 and the sixth pressure chamber 407, when the fluid pressure in the second pressure delivery passage 401 increases, the intra-cavity pressures of the fifth pressure cavity 406 and the sixth pressure cavity 407 increase, so that it can expand and exert a force on the corresponding third 430 and fourth 440 abutment members, causing them to rotate, so that both the first blade 431 and the second blade 441 can abut against the wall surface of the rotation chamber 101. By arranging the first scraping blade 431 and the second scraping blade 441 in the auxiliary cavity 101b, on one hand, fluid, especially liquid, in the auxiliary cavity 101b can be conveniently compressed by scraping the first scraping blade 431 and the second scraping blade 441 along the wall surface of the rotary cavity 101; on the other hand, the first scraping blade 431 and the second scraping blade 441 can increase the blocking between the fluid in the auxiliary cavity 101b and the first abutting part 411 and the second abutting part 421, improve the separation sealing performance between the auxiliary cavity 101b and the pressure cavity, and simultaneously enable the first abutting part 411 and the second abutting part 421 to be better stressed and convenient to use. In practical applications, the specific structures of the third abutting part 430 and the fourth abutting part 440 can be set according to practical usage requirements, and are not described herein again.

In some embodiments, the housing assembly 100 is further provided with an auxiliary input channel 104 for fluid to enter and an auxiliary output channel 105 for fluid to exit, the auxiliary input channel 104 is communicated with the auxiliary chamber 101b and is provided with a first one-way valve structure 210, the first pressure input channel 301 is communicated with the auxiliary chamber 101b and is provided with a second one-way valve structure 220, the auxiliary output channel 105 is communicated with the first pressure input channel 301, the first one-way valve structure 210 enables communication between the auxiliary input channel 104 and the auxiliary chamber 101b in an expanded state and enables disconnection between the auxiliary input channel 104 and the auxiliary chamber 101b in a compressed state, and the second one-way valve structure 220 enables communication between the first pressure input channel 301 and the auxiliary chamber 101b in a compressed state and enables disconnection between the first pressure input channel 301 and the auxiliary chamber 101b in an expanded state.

It can be understood that, as shown in fig. 2, 3, 4 and 5, the housing assembly 100 includes a first housing 130, a second housing 140 and an outer cylinder 150, the outer cylinder 150 is located between the first housing 130 and the second housing 140, the main input channel 102 and the main output channel 103 are both disposed on the first housing 130, the first housing 130 is further provided with an auxiliary input channel 104 and an auxiliary output channel 105, the rotating shaft member 200 is provided with a first channel 201 and a second channel 202, the rotating base 300 is provided with a third channel 302 and a fourth channel 303, with reference to fig. 4, 5 and 7, the auxiliary input channel 104, the first channel 201, the third channel 302, the auxiliary cavity 101b, the fourth channel 303 and the second channel 202 are sequentially communicated, the second channel 202 is communicated with the first pressure input channel 301, the first housing 130 is provided with a first annular groove 131 on the side facing the rotating cavity 101, the outer cylinder 150 is provided with a second annular groove 151 on the side facing the rotating cavity 101, the rotary base 300 is correspondingly provided with a through hole, so that the first annular groove 131 is communicated with the second annular groove 151, the auxiliary output channel 105 is communicated with the first annular groove 131, the second channel 202 is communicated with the second annular groove 151 and is communicated with the first pressure conveying channel 301 through the second annular groove 151, and therefore the second channel 202 can be kept communicated with the first pressure conveying channel 301 and the auxiliary output channel 105 in the rotating process of the rotary base 300. The first check valve structure 210 is disposed between the first channel 201 and the third channel 302, the second check valve structure 220 is disposed between the fourth channel 303 and the second channel 202, and since the auxiliary cavity 101b is provided with two, the third channel 302 and the fourth channel 303 on the rotary seat 300 are both correspondingly provided with two, referring to fig. 4 and 5, the first check valve structure 210 correspondingly includes a first check ball 211 and a second check ball 212, the second check valve structure 220 correspondingly includes a third check ball 221 and a fourth check ball 222, the first check ball 211 is located between the first channel 201 and the upper third channel 302, the second check ball 212 is located between the first channel 201 and the lower third channel 302, the third check ball 221 is located between the second channel 202 and the upper fourth channel 303, and the fourth check ball 222 is located between the second channel 202 and the lower fourth channel 303.

In the process of turning the slewing mechanism shown in fig. 7 to the state shown in fig. 9 in the clockwise direction with reference to fig. 7 and 9, the lower auxiliary chamber 101b in fig. 7 is gradually compressed, and the upper auxiliary chamber 101b is gradually expanded, and with reference to fig. 5, the upper auxiliary chamber 101b is expanded to generate suction force to the outside, so as to attract the first check ball 211 and the third check ball 221, open the communication between the first channel 201 and the upper third channel 302, and open the communication between the second channel 202 and the upper fourth channel 303; the auxiliary cavity 101b on the lower side is compressed to generate pressure outwards, the second check ball 212 and the fourth check ball 222 are pushed to disconnect the communication between the first channel 201 and the third channel 302 on the lower side, the communication between the second channel 202 and the fourth channel 303 on the lower side is opened, so that the on-off control of the first one-way valve structure 210 between the auxiliary input channel 104 and the auxiliary cavity 101b and the on-off control of the second one-way valve structure 220 between the first pressure input channel 301 and the auxiliary cavity 101b are realized, the communication between the first pressure input channel 301 and the auxiliary cavity 101b in a compressed state is realized, the pressure fluid in the first pressure input channel 301 can be provided by the auxiliary cavity 101b in a compressed state, each abutting piece can realize a better sealing effect by utilizing higher fluid output pressure, the trouble of additionally providing the pressure fluid for the first pressure input channel 301 is avoided, and the suction and compression of the fluid in the auxiliary cavity 101b are facilitated, is convenient for use.

In practical application, the first pressure input channel 301 may also be additionally provided with a channel to input pressure fluid, so that the corresponding rotating vane can rotate under the pressure action and abut against the wall surface of the rotary cavity 101, when the fluids input by the main input channel 102 and the auxiliary input channel 104 are consistent, the main input channel 102 and the auxiliary input channel 104 can be communicated, and the main output channel 103 and the auxiliary output channel 105 can be communicated, so that the auxiliary cavity 101b can realize the same function as the compression cavity 101a, and a four-cylinder compressor is formed, and the four-cylinder compressor has a compact structure, a small volume, more sufficient mechanical utilization and larger and more continuous compression displacement; the first check valve structure 210 and the second check valve structure 220 may be set according to actual use requirements, and a check valve for fluid may be disposed between each channel to control on/off of the fluid in the auxiliary chamber 101 b.

In some embodiments, the housing assembly 100 is further provided with a first lubrication chamber 106 and a second lubrication chamber 107, the rotating shaft member 200 is connected to a third bearing 230 and a fourth bearing 240 on two sides of the rotating mechanism, respectively, the third bearing 230 is located in the first lubrication chamber 106, the fourth bearing 240 is located in the second lubrication chamber 107, the first lubrication chamber 106 is communicated with the auxiliary input channel 104, and the second lubrication chamber 107 is communicated with the first pressure input channel 301.

It will be appreciated that as shown in fig. 2, 3, 4 and 6, the first lubrication chamber 106 communicates with the auxiliary input channel 104, which is capable of lubricating the third bearing 230 by means of the liquid fluid entering the auxiliary chamber 101 b; the second lubrication cavity 107 is communicated with the second channel 202, so that the second lubrication cavity is communicated with the first pressure transmission channel 301, the fourth bearing 240 can be lubricated by liquid fluid discharged from the auxiliary cavity 101b, and the bearings on the two sides of the rotating shaft part 200 can achieve a good lubrication effect and are convenient to use. In practical applications, the specific structures of the first lubrication chamber 106 and the second lubrication chamber 107 can be set according to the selected bearing, and those skilled in the art should understand that the specific structures are not limited herein.

In some embodiments, the housing assembly 100 is provided with an accommodating cavity 108, the housing assembly 100 includes an inner cylinder liner 120, the inner cylinder liner 120 is movably disposed in the accommodating cavity 108, the rotary cavity 101 is disposed in the inner cylinder liner 120, the inner cylinder liner 120 partitions the accommodating cavity 108 into a first balance cavity 108a and a second balance cavity 108b, the second balance cavity 108b is communicated with the main output channel 103, the first balance cavity 108a can apply a preset acting force to the inner cylinder liner 120, and the inner cylinder liner 120 can move relative to the accommodating cavity 108 to change an eccentric position of the rotary shaft 200 in the rotary cavity 101.

It can be understood that, as shown in fig. 2, 3, 4 and 7, the housing assembly 100 further includes an elastic member 110, the receiving cavity 108 is disposed on the outer cylinder sleeve 150, the rotation cavity 101 is disposed on the inner cylinder sleeve 120, the inner cylinder sleeve 120 is movably disposed in the receiving cavity 108, the receiving cavity 108 is partitioned by the inner cylinder sleeve 120 to form a first balance cavity 108a and a second balance cavity 108b, the second housing 140 is provided with a corresponding connecting passage 141, the second balance cavity 108b is communicated with the main output channel 103 through the corresponding connecting passage 141, the elastic member 110 is located in the first balance cavity 108a and acts on the inner cylinder sleeve 120, the second housing 140 is connected with an adjusting member 160 through a screw, and the adjusting member 160 acts on the elastic member 110 and can move up and down through screwing to change the acting force of the elastic member 110 acting on the inner cylinder sleeve 120. When in use, the first balance cavity 108a can be communicated with the main input channel 102 through the corresponding connecting passage 141 and a relief valve is arranged to keep the pressure in the first balance cavity 108a constant, or a liquid with a constant pressure is introduced into the first balance cavity 108a, or the elastic member 110 is adjusted through the adjusting member 160, so that the first balance cavity 108a is a constant pressure cavity which can act on the inner cylinder sleeve 120 with a constant preset acting force, the acting force of the first balance cavity 108a is balanced with the output fluid pressure of the second balance cavity 108b, so that the inner cylinder sleeve 120 is stabilized between the first balance cavity 108a and the second balance cavity 108b, when the output fluid pressure changes, the inner cylinder sleeve 120 moves up and down under the mutual action of the forces of the upper balance cavity and the lower balance cavity to change the eccentric position of the rotating shaft member 200 on the rotating cavity 101, thereby changing the compression ratio and the displacement of the compression cavity 101a and the auxiliary cavity 101b, when the output fluid pressure is reduced, the inner cylinder sleeve 120 moves downwards, the eccentricity of the rotating shaft part 200 in the rotating cavity 101 is increased, the compression ratio and the discharge capacity are improved, when the output fluid pressure is increased, the inner cylinder sleeve 120 moves upwards, the eccentricity of the rotating shaft part 200 in the rotating cavity 101 is reduced, the compression ratio and the discharge capacity are reduced, and therefore the effect of stable output is achieved.

In practical applications, the specific structure of the connection path 141 can be set according to practical usage requirements, the elastic element 110 can be a spring or a spring plate, and the adjusting element 160 can also be set according to practical usage requirements, which is not described herein again.

Referring to fig. 12, in the vane compressor in the figure, two rotary mechanisms are provided to form a dual-rotor compressor, and correspondingly, the number of corresponding rotary cavities 101, channels, and the like is correspondingly increased, and in practical applications, the number of the rotary mechanisms may also be increased to form a multi-rotor compressor, and corresponding components may be changed or increased accordingly, which should be understood by those skilled in the art, and is not limited herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A vane rotary compressor comprising:

the device comprises a shell assembly (100), wherein a rotary cavity (101), a main input channel (102) for fluid to enter and a main output channel (103) for fluid to discharge are arranged on the shell assembly (100);

the rotating shaft part (200) is rotatably connected to the shell assembly (100), and the rotating shaft part (200) is eccentrically arranged relative to the rotating cavity (101);

the slewing mechanism comprises a slewing seat (300) and at least one group of rotating blade groups (400), wherein the slewing seat (300) is connected to the rotating shaft part (200) and located in the slewing cavity (101), each group of rotating blade groups (400) comprises a first rotating blade (410) and a second rotating blade (420), the first rotating blade (410) and the second rotating blade (420) are both rotationally connected to the slewing seat (300) and can be opened and closed in a relative rotation mode, a first pressure output channel (301) for a fluid to enter is arranged on the slewing seat (300), the first rotating blade (410) and the second rotating blade (420) can be abutted against the wall surface of the slewing cavity (101) under the action of fluid pressure in the first pressure output channel (301), so that the first rotating blade (410) and the second rotating blade (420) in the same group of rotating blade groups (400) can separate a compression cavity (101a) from the slewing cavity (101), the compression chamber (101a) has an expanded state and a compressed state, the main input passage (102) being communicable with the compression chamber (101a) in the expanded state, and the main output passage (103) being communicable with the compression chamber (101a) in the compressed state.

2. The vane rotary compressor as set forth in claim 1,

the end of the first rotating blade (410) is rotatably connected with a first abutting piece (411), the end of the second rotating blade (420) is rotatably connected with a second abutting piece (421), the first rotating blade (410) abuts against the wall surface of the rotating cavity (101) through the first abutting piece (411), an abutting surface of the first abutting piece (411) is matched with the wall surface of the rotating cavity (101), the second rotating blade (420) abuts against the wall surface of the rotating cavity (101) through the second abutting piece (421), and an abutting surface of the second abutting piece (421) is matched with the wall surface of the rotating cavity (101).

3. The vane rotary compressor as set forth in claim 2,

the first rotating blade (410) and the second rotating blade (420) are provided with second pressure conveying channels (401), the first pressure conveying channels (301) are communicated with the second pressure conveying channels (401), and the first abutting pieces (411) and the second abutting pieces (421) can rotate to abut against the wall surface of the rotary cavity (101) under the action of fluid pressure in the corresponding second pressure conveying channels (401).

4. The vane rotary compressor as set forth in claim 3,

a first pressure cavity (402) is formed between the wall surface of the rotary seat (300) and the wall surface of the first rotating blade (410) in a matching manner, a second pressure cavity (403) is formed between the wall surface of the rotary seat (300) and the wall surface of the second rotating blade (420) in a matching manner, the first pressure delivery channel (301) is respectively communicated with the first pressure cavity (402) and the second pressure cavity (403), a third pressure cavity (404) is formed between the wall surface of the first rotating blade (410) and the wall surface of the first abutting part (411) in a matching manner, a fourth pressure cavity (405) is formed between the wall surface of the second rotating blade (420) and the wall surface of the second abutting part (421) in a matching manner, the third pressure cavity (404) and the fourth pressure cavity (405) are respectively communicated with the corresponding second pressure delivery channels (401), and the first pressure cavity (402) can be expanded, so as to be able to drive the first rotating blade (410) to rotate, the second pressure chamber (403) is able to expand so as to be able to drive the second rotating blade (420) to rotate, the third pressure chamber (404) is able to expand so as to be able to drive the first abutting piece (411) to rotate to abut against the wall surface of the rotating chamber (101), and the fourth pressure chamber (405) is able to expand so as to be able to drive the second abutting piece (421) to rotate to abut against the wall surface of the rotating chamber (101).

5. The vane rotary compressor as set forth in claim 3,

be equipped with first connecting axle (412) on first rotation leaf (410), first butt piece (411) with rotate between the first rotation leaf (410) through first connecting axle (412) and connect, the cover is equipped with first bearing (413) on first connecting axle (412), be equipped with second connecting axle (422) on second rotation leaf (420), second butt piece (421) with pass through between second rotation leaf (420) second connecting axle (422) rotate and connect, the cover is equipped with second bearing (423) on second connecting axle (422), the outside of first bearing (413) with the outside homoenergetic butt of second bearing (423) the wall of gyration chamber (101) to make first bearing (413) with second bearing (423) homoenergetic is followed the wall of gyration chamber (101) rolls.

6. The vane rotary compressor as set forth in claim 1,

the rotor blade groups (400) are provided with at least two groups and are uniformly distributed at intervals along the circumferential direction of the rotary base (300), in two adjacent groups of the rotor blade groups (400), the first rotor blades (410) of one group of the rotor blade groups (400) and the second rotor blades (420) of the other group of the rotor blade groups (400) can divide an auxiliary cavity (101b) in the rotary cavity (101), the auxiliary cavity (101b) and the compression cavity (101a) are alternately distributed along the circumferential direction of the rotary base (300), and the auxiliary cavity (101b) has an expansion state and a compression state.

7. The vane rotary compressor as claimed in claim 6,

a third abutting piece (430) is connected to the first rotating blade (410) in a rotating manner, a fourth abutting piece (440) is connected to the second rotating blade (420) in a rotating manner, a first scraping blade (431) is arranged on the third abutting part (430), a second scraping blade (441) is arranged on the fourth abutting part (440), the first scraper blade (431) and the second scraper blade (441) are both located in the auxiliary chamber (101b), the first rotating blade (410) and the second rotating blade (420) are both provided with a second pressure transmission channel (401), the first pressure transmission channel (301) is communicated with the second pressure transmission channel (401), the third abutment member (430) and the fourth abutment member (440) are each rotatable under the action of the fluid pressure in the corresponding second pressure delivery channel (401), so that both the first scraper blade (431) and the second scraper blade (441) can be in contact with the wall surface of the rotary chamber (101).

8. The vane rotary compressor as claimed in claim 6,

still be provided with on casing subassembly (100) and supply supplementary input channel (104) that fluid got into and supply fluid exhaust supplementary output channel (105), supplementary input channel (104) with supplementary chamber (101b) intercommunication and be provided with first check valve structure (210), first defeated pressure passageway (301) with supplementary chamber (101b) intercommunication and be provided with second check valve structure (220), supplementary output channel (105) with first defeated pressure passageway (301) intercommunication, first check valve structure (210) can make supplementary input channel (104) and inflation state communicate between supplementary chamber (101b) and make supplementary input channel (104) and compression state break off the intercommunication between supplementary chamber (101b), second check valve structure (220) can make first defeated pressure passageway (301) and compression state communicate between supplementary chamber (101b) and make first defeated pressure passageway (301) and inflation state supplementary output channel (301) of inflation state The auxiliary cavities (101b) are disconnected from each other.

9. The vane rotary compressor as claimed in claim 8,

still be provided with first lubrication chamber (106) and second lubrication chamber (107) on housing assembly (100), pivot spare (200) in the both sides of rotation mechanism are connected with third bearing (230) and fourth bearing (240) respectively, third bearing (230) are located first lubrication chamber (106), fourth bearing (240) are located second lubrication chamber (107), first lubrication chamber (106) with assist input channel (104) intercommunication, second lubrication chamber (107) with first defeated pressure passageway (301) intercommunication.

10. The vane rotary compressor as set forth in claim 1,

be provided with holding chamber (108) on casing assembly (100), casing assembly (100) include interior cylinder liner (120), interior cylinder liner (120) activity set up in holding chamber (108), gyration chamber (101) set up in on interior cylinder liner (120), interior cylinder liner (120) will holding chamber (108) are separated and are formed first balanced chamber (108a) and second balanced chamber (108b), second balanced chamber (108b) with main output channel (103) intercommunication, first balanced chamber (108a) can be to interior cylinder liner (120) are acted on and are preset the effort, interior cylinder liner (120) can be relative holding chamber (108) remove to change pivot spare (200) in the eccentric position of gyration chamber (101).