CN218235492U

CN218235492U - Crescent exhaust cylinder and compressor

Info

Publication number: CN218235492U
Application number: CN202221446850.0U
Authority: CN
Inventors: 程剑国; 霍喜军; 伍文轩; 曾成敏; 朱伟
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2023-01-06
Anticipated expiration: 2032-06-10

Abstract

The application relates to a crescent exhaust cylinder and compressor. This crescent exhaust cylinder includes: the air inlet, the crescent exhaust port and the sliding sheet groove are all arranged on the air cylinder body; the sliding sheet groove is arranged between the air inlet and the crescent exhaust port; the crescent exhaust port comprises a first crescent exhaust port, a second crescent exhaust port and a third crescent exhaust port, and the second crescent exhaust port is positioned between the first crescent exhaust port and the third crescent exhaust port. The utility model provides a scheme through first crescent gas vent, mutually supports between second crescent gas vent and the third crescent gas vent, can effectively eliminate turn-ups and burr under the condition that does not increase exhaust angle, when reducing cylinder sliding vane groove deformation and cutter deformation wearing and tearing, enlarges exhaust cover surface, increase application range.

Description

Crescent exhaust cylinder and compressor

Technical Field

The application relates to the technical field of compressors, in particular to a crescent exhaust cylinder and a compressor.

Background

Along with the upgrading of the air conditioner energy efficiency, the requirement on the energy efficiency of the air conditioner compressor component is higher and higher, the compressor pump body is used as a core component of the compressor, the efficiency of the compressor pump body is improved, and the energy efficiency of the air conditioner can be improved. The cylinder is used as a key part of the pump body and is directly related to the efficiency of the pump body of the compressor.

The cylinder is a fine machining structural part which is used in the rolling rotor type compressor and is used for supporting a pump body part of the rolling rotor type compressor to form a high-pressure cavity and a low-pressure cavity for flowing of working media. It is a basic part that realizes the function of the compressor, bears the friction force and the constantly changing gas force of the rotating part, and is required to have higher intensity and good machining performance.

The design requirement of present cylinder is increasingly high to the exhaust angle of cylinder gas vent, and the gas vent of cylinder should be close to the slide groove as far as possible, and the purpose is for slowing down the exhaust closing time, improves pump body efficiency. The shape, size and the exhaust angle of crescent moon groove are the key factors that influence exhaust, and when exhaust crescent moon groove shape and size under the fixed condition, the exhaust angle of cylinder gas vent is less, and exhaust efficiency is higher, but the exhaust angle is less, often can have crescent moon groove and sliding vane groove to appear crossing often or the distance is little, can appear the burr in the course of working and get rid of not completely, appear collapsing and influence compressor performance to and processing deformation influences the cutter life-span greatly, reduces production efficiency's problem.

The prior domestic patent CN 113464434A discloses a structure of a double crescent slot, and specifically, the exhaust port includes a first notch and a second notch, the first notch is far away from the slide sheet slot relative to the second notch, and the second notch is close to the slide sheet slot relative to the first notch.

Therefore, the crescent exhaust air cylinder can effectively eliminate flanging and burrs, reduce deformation of the air cylinder slide sheet groove and deformation and abrasion of a cutter, enlarge an exhaust coverage area and enlarge an application range.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the correlation technique, this application provides a crescent exhaust cylinder, and this cylinder when can reduce cylinder sliding vane groove deformation and cutter deformation wearing and tearing, effectively realizes littleer exhaust angle, improves production efficiency and pump body efficiency, realizes low-cost processing and high-energy efficiency compressor.

The first aspect of the application provides a crescent exhaust cylinder, which comprises a cylinder body, a crescent exhaust port, an air inlet and a slide sheet groove, wherein the air inlet, the crescent exhaust port and the slide sheet groove are all arranged on the cylinder body;

the sliding sheet groove is arranged between the air inlet and the crescent exhaust port;

the crescent exhaust port comprises a first crescent exhaust port, a second crescent exhaust port and a third crescent exhaust port, and the second crescent exhaust port is positioned between the first crescent exhaust port and the third crescent exhaust port.

In one embodiment, the third crescent exhaust port is disposed adjacent to the slide groove with respect to the second crescent exhaust port, and one end of the third crescent exhaust port communicates with the slide groove and the other end communicates with the second crescent exhaust port.

In one embodiment, the angle β between the centerline of the first crescent exhaust opening and the centerline of the slide groove is less than or equal to 11 °;

or the included angle alpha between the central line of the third crescent exhaust port and the central line of the slide sheet groove is less than or equal to 5 degrees.

In one embodiment, the angle epsilon between the center line of the second crescent exhaust port and the center line of the slide plate groove is less than or equal to 7 deg.

In one embodiment, the slide plate groove intersects the inner circle of the cylinder at the second groove edge and the first groove edge,

the point where the first contour edge of the second crescent exhaust port intersects with the inner circle is a second crescent inner intersection point;

a distance d from the second flute edge to the second intraoral intersection point is greater than or equal to 0.3 millimeters.

In one embodiment, the outermost intersection point where the first contour edge of the second february exhaust port intersects with the cylinder end surface is a second external february intersection point;

and the distance e from the second external intersection point of the february teeth to the slide groove is more than or equal to 0.2 mm.

In one embodiment, the intersection point of the first contour edge of the third crescent exhaust port and the inner circle is the third crescent inner intersection point;

and the distance C from the third crescent inner intersection point to the first groove edge is greater than 0.

In one embodiment, the intersection point of the first profile edge of the first crescent exhaust port and the inner circle is a first crescent inner intersection point,

intersect in the first crescent to intersect distance b in the third crescent is less than flange exhaust hole diameter, the flange is located in the flange exhaust hole, the flange is located crescent exhaust cylinder is last.

The application second aspect provides a crescent exhaust cylinder, includes: the air inlet, the crescent exhaust port and the sliding sheet groove are all arranged on the air cylinder body;

the crescent exhaust port comprises a first crescent exhaust port, a second crescent exhaust port and a third crescent exhaust port;

the first crescent exhaust port is opposite to the second crescent exhaust port, and the third crescent exhaust port is far away from the slide sheet groove;

the second crescent moon exhaust port is communicated with the slide sheet groove, the first crescent moon exhaust port and the third crescent moon exhaust port respectively;

the third crescent exhaust port is communicated with the chamfer of the slide sheet groove and the first crescent exhaust port respectively;

a third aspect of the present application provides a compressor comprising any one of the crescent exhaust cylinders mentioned above.

The technical scheme provided by the application can comprise the following beneficial effects: set up a plurality of crescent vents under the condition that does not increase exhaust angle, including first crescent vent, second crescent vent and third crescent vent, first crescent vent mainly used exhausts, and the high-pressure gas of exhaust cylinder reduces the high-pressure gas and expands the influence to the compressor air suction capacity again, also can improve the reliability of compressor pump body part simultaneously.

The third crescent exhaust port can be used for removing flanges and burrs generated in the process of machining the slide sheet groove, the condition of overlarge concentrated stress caused by the flanges and the burrs is reduced, and the clearance volume cannot be increased.

And the second crescent moon exhaust port is arranged between the first crescent moon exhaust port and the second crescent moon exhaust port, and the second crescent moon exhaust port has the functions of the first crescent moon exhaust port and the third exhaust port, so that the air cylinder can be exhausted, and the function of eliminating the flanging and the burrs can be realized under the condition that the flanging and the burrs are not complete for the third crescent moon exhaust port.

This application is through first crescent gas vent, mutually supporting between second crescent gas vent and the third crescent gas vent, can effectively eliminate turn-ups and burr under the condition that does not increase exhaust angle, when reducing cylinder sliding vane groove deformation and cutter deformation wearing and tearing, and enlarge the exhaust cover surface for two crescent gas vents, increase range of application to the reliability of compressor pump body part has been guaranteed, the efficiency of the compressor pump body is promoted, the efficiency of air conditioner is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

FIG. 1 is a schematic structural diagram of a crescent exhaust cylinder shown in an embodiment of the application;

FIG. 2 is a schematic diagram of a top view structure of a crescent exhaust cylinder shown in an embodiment of the application;

FIG. 3 is an enlarged structure schematic diagram A of a crescent exhaust cylinder shown in the embodiment of the application;

FIG. 4 is an exhaust angle schematic diagram of an A amplification structure of a crescent exhaust cylinder shown in the embodiment of the application;

FIG. 5 is an enlarged structural view A of a crescent exhaust cylinder shown in the embodiment of the present application (after a slide groove is machined);

FIG. 6 is a schematic structural diagram of another implementation manner of a crescent exhaust cylinder shown in the embodiment of the application

FIG. 7 is a schematic diagram of an enlarged structure B of a crescent exhaust cylinder (after a slide groove is machined) shown in the embodiment of the application;

FIG. 8 is a schematic view illustrating the crescent exhaust port processing of the crescent exhaust cylinder according to the embodiment of the present application;

FIG. 9 is a schematic view of a first cylindrical tool machining first crescent exhaust port shown in an embodiment of the present application;

FIG. 10 is a schematic view of a second cylindrical cutter machining a second crescent exhaust port in accordance with an exemplary embodiment of the present disclosure;

fig. 11 is a schematic view of a third cylinder for machining a third crescent exhaust port according to an embodiment of the present application.

Reference numerals

1. A cylinder body; 2. a crescent exhaust port; 21. a first crescent exhaust port; 211. a first crescent inner intersection point; 22. a second February tooth exhaust port; 221. a second crescent inner intersection point; 222. a second external intersection of the february teeth; 23. a third crescent exhaust port; 231. the inner intersection point of the three crescent moon; 3. an air inlet; 4. a slide groove; 41. a first slot edge; 42. a second slot edge; 43. chamfering; l1, the central line of the first crescent exhaust port; l2, the central line of the second February tooth exhaust port; l3, the central line of the air outlet of the third crescent; l4, the center line of the slide groove.

Detailed Description

Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application have been illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Example one

The cylinder is a fine machining structural component which is used in the rolling rotor type compressor and supports a pump body component of the rolling rotor type compressor to form a high-low pressure cavity for working medium to flow. It is a basic part that realizes the function of the compressor, bears the friction force and the constantly changing gas force of the rotating part, and is required to have higher intensity and good machining performance.

The design requirement of present cylinder is increasingly high to the exhaust angle of cylinder gas vent, and the gas vent of cylinder should be close to the slide groove as far as possible, and the purpose is for slowing down the exhaust closing time, improves pump body efficiency. The shape of crescent moon groove, size and exhaust angle are the key factor that influences exhaust, and under the fixed condition of exhaust crescent moon groove shape and size, the exhaust angle of cylinder gas vent is less, and exhaust efficiency is higher, but exhaust angle is less, often can have crescent moon groove and slide groove to appear crossing or the distance is little often, can appear burr in the course of working and get rid of inexhaustibly, appear collapsing mouthful influence compressor performance to and processing deformation influences the cutter life-span greatly, reduces production efficiency's problem.

Therefore, the crescent exhaust air cylinder can effectively eliminate flanging and burrs, reduce deformation of the air cylinder slide sheet groove and deformation and abrasion of a cutter, enlarge an exhaust covering surface and enlarge the application range.

The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

FIG. 2 is a schematic diagram of a top view structure of a crescent exhaust cylinder shown in the embodiment of the application;

fig. 4 is an exhaust angle schematic diagram of an a amplifying structure of a crescent exhaust cylinder shown in the embodiment of the application.

See fig. 1, fig. 2 and fig. 4.

The crescent exhaust cylinder comprises a cylinder body 1, a crescent exhaust port 2, an air inlet 3 and a sliding sheet groove 4, wherein the air inlet 3, the crescent exhaust port 2 and the sliding sheet groove 4 are all arranged on the cylinder body 1;

the slide sheet groove 4 is arranged between the air inlet 3 and the crescent exhaust port 2;

the crescent exhaust port 2 comprises a first crescent exhaust port 21, a second crescent exhaust port 22 and a third crescent exhaust port 23; the second crescent exhaust port 22 is located between the first crescent exhaust port 21 and the third crescent exhaust port 23, the third crescent exhaust port 23 is arranged close to the slide sheet groove 4 relative to the second crescent exhaust port 22, one end of the third crescent exhaust port 23 is communicated with the slide sheet groove 4, and the other end of the third crescent exhaust port 23 is communicated with the second crescent exhaust port 22. As shown in fig. 1.

The first crescent exhaust port 21 of the embodiment of the application is mainly used for exhausting air for the cylinder, and the third crescent exhaust port 23 is used for removing flanges and burrs generated when the slide sheet groove 4 is machined, and the volume of the third crescent exhaust port is required to be as small as possible so as to reduce the clearance volume. The second crescent exhaust port 22 has the functions of the first crescent exhaust port 21 and the third exhaust port, and can exhaust air from the cylinder and eliminate flanging and burrs of the third crescent exhaust port 23.

Through the setting of third crescent gas vent 23, the exhaust effect of cylinder has further been guaranteed to second february tooth gas vent 22, makes the high-pressure gas that the high-pressure chamber in the cylinder formed can quick exhaust cylinder, and second february tooth gas vent 22 can also further eliminate the turn-ups and the burr of processing slide groove 4 in addition.

For example, the crescent exhaust cylinder can be applied to a rotary compressor, which is one of air conditioner compressors and comprises a motor part and a pump body assembly, wherein the pump body assembly comprises a cylinder, a roller positioned in a compression cavity of the cylinder, a sliding vane connected with the roller and capable of reciprocating, a crankshaft driving the roller to rotate, a flange connected with the cylinder in a sealing manner, and the like. The end face of the top end of the slip sheet is connected with the roller to divide the cylinder compression cavity into a high-pressure cavity and a low-pressure cavity, the flange is provided with exhaust holes, the exhaust holes are located on one side of the slip sheet, and gas compressed by the compressor is exhausted from the exhaust holes of the flange.

The high-pressure gas of this application embodiment is from the high-pressure chamber through crescent gas vent in the exhaust hole of follow flange promptly.

The gas inlet 3 is located in the low-pressure cavity, and the gas enters the low-pressure cavity from the gas inlet 3 and is compressed into high-pressure gas through the roller.

The slide groove 4 is a groove for the slide to contact with the roller and to reciprocate, and the specific shape of the slide groove is not limited in the embodiments of the present application. The center line L4 of the vane groove is a center line in the radial direction of the cylinder body 1.

The beneficial effects of the embodiment of the application are as follows: set up a plurality of crescent vents under the less condition of assurance exhaust angle, including first crescent vent, second crescent vent and third crescent vent, first crescent vent mainly used exhausts, and the high-pressure gas of exhaust cylinder reduces the high-pressure gas and expands the influence to the compressor air suction volume again, also can improve the reliability of compressor pump body part simultaneously.

The third crescent exhaust port can be used for removing flanges and burrs generated in the process of machining the slide sheet groove, the condition that the concentrated stress caused by the flanges and the burrs is overlarge is reduced, and the clearance volume cannot be increased.

And the second crescent moon exhaust port is arranged between the first crescent moon exhaust port and the second crescent moon exhaust port, and the second crescent moon exhaust port has the functions of the first crescent moon exhaust port and the third exhaust port, so that the air cylinder can be exhausted, and the function of eliminating the flanging and the burrs can be realized under the condition that the flanging and the burrs are not complete for the third crescent moon exhaust port. The second February tooth exhaust port further guarantees the exhaust effect of the cylinder, enables high-pressure gas formed by a high-pressure cavity in the cylinder to be discharged from the cylinder rapidly, and can further eliminate the flanging and the burr of the machined sliding sheet groove.

This application is through first crescent gas vent, and turn-ups and burr have effectively been eliminated in the mutually supporting between second crescent gas vent and the third crescent gas vent, when reducing cylinder sliding vane groove deformation and cutter deformation and wear, still enlarge exhaust cover surface, increase application range.

Example two

In order to further eliminate burrs and reduce the influence on a machining tool, the crescent exhaust cylinder is further designed.

FIG. 4 is a schematic exhaust angle diagram of an A amplifying structure of a crescent exhaust cylinder shown in the embodiment of the application;

see fig. 1, 3 and 4.

The application embodiment crescent exhaust cylinder, its characterized in that: the air cylinder body 1, the crescent exhaust port 2, the air inlet 3 and the sliding sheet groove 4 are arranged on the air cylinder body 1, and the air inlet 3, the crescent exhaust port 2 and the sliding sheet groove 4 are arranged on the air cylinder body 1;

the sliding sheet groove 4 is arranged between the air inlet 3 and the crescent exhaust port 2;

further, the first crescent exhaust port 21 is cut off by the intersection of the first cylindrical cutter and the cylinder body 1; the included angle beta between the central line L1 of the first crescent exhaust port and the central line L4 of the slide sheet groove is less than or equal to 11 degrees.

The exhaust angle of the first crescent exhaust port 21 of the present application refers to the included angle β between the center line L1 of the first crescent exhaust port and the center line L4 of the slide groove, and the center line L1 of the first crescent exhaust port is also the center line of the first cylindrical cutter, because the first crescent exhaust port 21 is obtained by cutting off the first cylindrical cutter and the cylinder body 1 in an intersecting manner.

Illustratively, the first crescent outlet 21 of the embodiment of the present application has an angle β of 11 ° or less.

The angle is 11 degrees in an exemplary mode, the angle is smaller compared with the exhaust angle in the prior art, the exhaust angle of the existing crescent exhaust port is generally 13 degrees, therefore, the angle is smaller for the first crescent exhaust angle in the application, the high-pressure gas at the tail of the exhaust port can be discharged more conveniently, the influence of the re-expansion of the high-pressure gas on the suction volume of the compressor is reduced, and meanwhile, the reliability of parts of the pump body of the compressor can be improved.

Tests prove that the pump body volumetric efficiency of the prior domestic patent CN 113464434A is 91.95%, the indicating efficiency is 87.25% and the coefficient of circulation performance COP is 2.93, while the pump body volumetric efficiency of the embodiment of the application is 92.56%, the indicating efficiency is 89.6% and the coefficient of circulation performance COP is 3.02. The test data show that the pump body volume efficiency of using this application is higher, and indicating efficiency is also higher to the performance has been promoted.

The beneficial effects of the embodiment of the application are as follows: the utility model provides a crescent gas vent includes first crescent exhaust mouth, second crescent exhaust mouth and third crescent exhaust mouth, setting through many crescent gas vents, third crescent exhaust mouth one end and second crescent exhaust mouth intercommunication, the other end and sliding piece groove intercommunication, can utilize first crescent exhaust mouth to exhaust, and process third crescent exhaust mouth between second crescent exhaust mouth and sliding piece groove, can still effectively eliminate turn-ups and burr when reducing the clearance volume, reduce the too big condition of concentrated stress because turn-ups and burr bring, and can not increase the clearance volume, thereby guarantee that the performance of the cylinder of production and compressor is qualified, improve the product percent of pass.

In addition, due to the arrangement of the air exhaust port of the third crescent, when the cutter is used for machining a sliding sheet groove of the air cylinder (generally, a broach), the problems that an acute notch exists, the broach is easy to break at the acute notch, and the influence on the cutter is great are avoided. Thereby reducing wear on the cutter.

In addition, the central line of the first crescent moon exhaust port of the application with the contained angle beta of the central line of the sliding sheet groove is less than or equal to 11 degrees, namely the exhaust angle of the first crescent moon exhaust port is less than or equal to 11 degrees, the exhaust angle is smaller than that of the prior art, the crescent moon exhaust port is high-pressure gas, the exhaust angle is small, the high-pressure gas at the tail of the cylinder can be discharged more favorably, the influence of the re-expansion of the high-pressure gas on the suction volume of the compressor is reduced, and the reliability of parts of the pump body of the compressor can be improved.

EXAMPLE III

The second embodiment introduces the multi-crescent exhaust cylinder, and the crescent exhaust port of the third embodiment is further invented and designed in the embodiment of the application, so that the crescent exhaust cylinder can improve the efficiency of the pump body, improve the energy efficiency of the compressor, reduce the deformation and abrasion of a machining cutter and improve the production efficiency.

FIG. 3 is an enlarged structural schematic diagram A of a crescent exhaust cylinder shown in the embodiment of the application;

FIG. 8 is a schematic view illustrating a crescent exhaust processing of a crescent exhaust cylinder according to an embodiment of the present application;

see fig. 3, 4, 5 and 8.

The multi-crescent exhaust cylinder comprises the structure of the third embodiment, and comprises a first crescent exhaust port 21, a second crescent exhaust port 22 and a third crescent exhaust port 23.

The exhaust angle of the first crescent exhaust port 21 in the embodiment of the present application is β, specifically, the included angle between the center line L1 of the first crescent exhaust port and the center line L4 of the slide plate groove. The first crescent exhaust port 21 is cut off by the intersection of a first cylindrical cutter and the cylinder body 1; as shown in fig. 9.

The centerline L1 of the first crescent exhaust port is also the centerline of the first cylindrical cutter, as shown in FIG. 9.

β is less than or equal to 11 °, with 11 ° being used for the purposes of this application.

The exhaust angle of the second February tooth exhaust port 22 is epsilon, and specifically is the included angle between the central line L2 of the second February tooth exhaust port and the central line L4 of the slide plate groove. The second February tooth exhaust port 22 is formed by cutting off the second cylindrical cutter and the cylinder body 1 in an intersecting manner; as shown in fig. 10.

The centerline L2 of the second crescent outlet is also the centerline of the second cylindrical cutter, as shown in fig. 10.

Epsilon is less than or equal to 7 deg., with 7 deg. being used for the present example.

The exhaust angle of the third crescent exhaust port 23 is α, specifically, the included angle between the center line L3 of the third crescent exhaust port and the center line L4 of the slide sheet groove. The third crescent exhaust port 23 is cut off by the intersection of a third cylindrical cutter and the cylinder body 1; as shown in fig. 11.

The centerline L3 of the third crescent exhaust port is also the centerline of the third cylindrical cutter, as shown in fig. 11.

α is less than or equal to 5 °, with 5 ° being exemplary used herein.

The vane groove 4 intersects the cylinder inner circle at a second groove edge 42 and a first groove edge 41, as shown in figure 2,

the machined vane groove 4 intersects with the inner circle of the cylinder at the second groove edge 42 and the first groove edge 41.

The point where the first contour edge of the second crescent exhaust port 22 intersects with the inner circle is a second crescent inner intersection point 221; the second crescent exhaust port 22 is cut by the intersection of the second cylindrical cutter and the cylinder body 1, and presents a contour edge of the second crescent exhaust port 22, the first contour edge refers to a contour edge close to the slide groove 4, and the distance d from the second groove edge 42 to the intersection point in the second crescent is greater than or equal to 0.3 mm.

The outermost intersection point where the first contour edge of the second crescent exhaust port 22 intersects with the cylinder end surface is a second crescent outer intersection point 222;

the distance e from the second external february intersection 222 to the slide groove 4 is equal to or greater than 0.2 mm.

The distance d of the embodiment of the present application is exemplarily 0.3 mm, and the distance e is exemplarily 0.2 mm.

The distance d and the distance e are too small, and the burring are easily generated, and the occurrence of the burring can be further reduced or prevented by setting the distance d and the distance e within the above range.

The intersection point of the first contour edge of the third crescent air outlet 23 and the inner circle is a third crescent inner intersection point 231; the third crescent inner intersection point 231 is an intersection point when the slide groove 4 is not machined.

The distance C from the third crescent inner intersection point 231 to the first slot edge 41 is greater than 0. This distance restriction allows the crescent exhaust port to be located on one side of the vane slot 4.

Further, an intersection point of the first contour edge of the first crescent exhaust port 21 and the inner circle is a first crescent inner intersection point 211;

nodical 231 distance b is less than flange exhaust hole diameter in nodical 211 to the third crescent in the first crescent, and the flange is located to the flange exhaust hole, and the crescent exhaust cylinder is located to the flange.

This restriction of the distance b allows the high-pressure gas exiting through the crescent outlet 2 to exit the cylinder unimpeded through the exhaust port in the flange.

The beneficial effects of the embodiment of the application are as follows: through the exhaust angle of further restriction second crescent mouth and third crescent mouth, can further holistically reduce crescent exhaust cylinder's exhaust angle, the reduction of exhaust angle, crescent exhaust mouth department is high-pressure gas, and the exhaust port angle is the hour, more is favorable to discharging the high-pressure gas of exhaust afterbody, reduces the influence of this part high-pressure gas reexpansion to the compressor air suction volume, also can improve the reliability of compressor pump body part simultaneously.

Through the restriction to distance d and distance e, distance d and distance e produce turn-ups and burr too little easily, will set up distance d and distance e and can further reduce or prevent the emergence of burr in this application within range.

The range of the distance b is designed to enable high-pressure gas exhausted through the crescent exhaust port to be exhausted out of the cylinder through the exhaust hole in the flange without obstruction.

Example four

The crescent exhaust cylinder of the embodiment of the application can realize the same function as the first embodiment.

Fig. 7 is a schematic diagram of an enlarged structure B of a crescent exhaust cylinder (after a slide groove is machined) according to an embodiment of the present application.

See fig. 6 and 7.

The air cylinder specifically comprises an air cylinder body 1, a crescent exhaust port 2, an air inlet 3 and a sliding sheet groove 4, wherein the air inlet 3, the crescent exhaust port 2 and the sliding sheet groove 4 are all arranged on the air cylinder body 1;

the crescent exhaust port 2 comprises a first crescent exhaust port 21, a second crescent exhaust port 22 and a third crescent exhaust port 23, the first crescent exhaust port 21 is opposite to the second crescent exhaust port 22, the third crescent exhaust port 23 is far away from the slide sheet groove 4, the second crescent exhaust port 22 and the third crescent exhaust port 23 are close to the slide sheet groove 4 relative to the first crescent exhaust port 21, one end of the second crescent exhaust port 22 is communicated with the slide sheet groove 4, the other end of the second crescent exhaust port 22 is communicated with the first crescent exhaust port 21, one end of the third crescent exhaust port 23 is communicated with the chamfer 43 of the slide sheet groove 4, and the other end of the third crescent exhaust port 23 is communicated with the first crescent exhaust port 21;

the included angle beta between the central line L1 of the first crescent exhaust port and the central line L4 of the slide sheet groove is less than or equal to 11 degrees. As shown in fig. 4

The first crescent exhaust port 21 of the embodiment of the present application is mainly used for exhausting the cylinder.

The third crescent exhaust port 23 of the embodiment of the application can effectively form the chamfer 43 with a special structure for processing, thereby eliminating the flanging burr.

The second crescent exhaust port 22 has the functions of the first crescent exhaust port 21 and the third exhaust port, so that the cylinder can be exhausted, and the function of eliminating the flanging and the burrs can be realized under the condition that the flanging and the burrs are not completely removed from the third crescent exhaust port 23.

The beneficial effects of the embodiment of the application are as follows: through the setting of many crescent vents, first crescent exhaust port, second crescent exhaust port and third crescent exhaust port, first crescent exhaust port mainly used exhausts, and the exhaust angle of first crescent exhaust port is beta less than or equal to 11, and the exhaust angle is little, does benefit to the high-pressure gas of exhaust cylinder afterbody, reduces the high-pressure gas and expands the influence to the compressor air suction capacity again, also can improve the reliability of compressor pump body part simultaneously.

The third crescent exhaust port can effectively form chamfering treatment of a special structure, so that flanging burrs are eliminated.

The second crescent exhaust port has the functions of the first crescent exhaust port and the third exhaust port, so that the air cylinder can be exhausted, and the function of eliminating the flanging and the burrs can be realized under the condition that the third crescent exhaust port is not completely used for eliminating the flanging and the burrs.

Further, the embodiment of the present application further provides a compressor, where the compressor includes any one of the crescent exhaust cylinders mentioned in the above embodiments, and the compressor has the beneficial effects mentioned in the above embodiments, and the description of the embodiment of the present application is not repeated.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. The utility model provides a crescent exhaust cylinder which characterized in that: the air cylinder comprises an air cylinder body (1), a crescent exhaust port (2), an air inlet (3) and a sliding sheet groove (4), wherein the air inlet (3), the crescent exhaust port (2) and the sliding sheet groove (4) are arranged on the air cylinder body (1);

the sliding sheet groove (4) is arranged between the air inlet (3) and the crescent exhaust port (2);

the crescent exhaust port (2) comprises a first crescent exhaust port (21), a second crescent exhaust port (22) and a third crescent exhaust port (23), and the second crescent exhaust port (22) is located between the first crescent exhaust port (21) and the third crescent exhaust port (23).

2. A crescent exhaust cylinder according to claim 1, wherein:

the third crescent exhaust port (23) is arranged close to the slide piece groove (4) relative to the second crescent exhaust port (22), one end of the third crescent exhaust port (23) is communicated with the slide piece groove (4), and the other end of the third crescent exhaust port is communicated with the second crescent exhaust port (22).

3. A crescent exhaust cylinder according to claim 1, wherein:

an included angle beta between the central line (L1) of the first crescent exhaust port and the central line (L4) of the slide sheet groove is smaller than or equal to 11 degrees;

or the included angle alpha between the central line (L3) of the third crescent exhaust port and the central line (L4) of the slide sheet groove is less than or equal to 5 degrees.

4. The crescent exhaust cylinder of claim 2, wherein:

an included angle epsilon between a central line (L2) of the second February tooth exhaust port and a central line (L4) of the sliding piece groove is smaller than or equal to 7 degrees.

5. The crescent exhaust cylinder of claim 2, wherein:

the slide plate groove (4) comprises a first groove edge (41) and a second groove edge (42),

the point where the first contour edge of the second crescent tooth exhaust port (22) intersects with the inner circle is a second crescent inner intersection point (221);

the distance d from the second flute edge (42) to the second internal deciduous intersection is greater than or equal to 0.3 mm.

6. A crescent exhaust cylinder according to claim 2, wherein:

the outermost intersection point of the first contour edge of the second February tooth exhaust port (22) and the cylinder end surface is a second February tooth outer intersection point (222);

the distance e from the second external February intersection point (222) to the slide plate groove (4) is greater than or equal to 0.2 mm.

7. The crescent exhaust cylinder of claim 5, wherein:

the intersection point of the first contour edge of the third crescent exhaust port (23) and the inner circle is a third crescent inner intersection point (231);

the distance C from the third crescent inner intersection point (231) to the first groove edge (41) is greater than 0.

8. A crescent exhaust cylinder according to claim 7, wherein:

the intersection point of the first outline edge of the first crescent exhaust port (21) and the inner circle is a first crescent inner intersection point (211),

intersect (211) extremely in the first crescent moon intersect (231) distance b is less than flange exhaust hole diameter in the third crescent moon, the flange is located to the flange exhaust hole, the flange is located crescent exhaust cylinder is last.

9. A crescent exhaust cylinder, comprising: the air cylinder comprises an air cylinder body (1), a crescent exhaust port (2), an air inlet (3) and a sliding sheet groove (4), wherein the air inlet (3), the crescent exhaust port (2) and the sliding sheet groove (4) are all arranged on the air cylinder body (1);

the crescent exhaust port (2) comprises a first crescent exhaust port (21), a second crescent exhaust port (22) and a third crescent exhaust port (23);

the first crescent exhaust port (21) is opposite to the second crescent exhaust port (22), and the third crescent exhaust port (23) is far away from the slide sheet groove (4);

the second crescent exhaust port (22) is communicated with the slide sheet groove (4), the first crescent exhaust port (21) and the third crescent exhaust port (23) respectively;

the third crescent exhaust port (23) is respectively communicated with the chamfer (43) of the slide sheet groove (4) and the first crescent exhaust port (21).

10. A compressor, characterized by: comprising a crescent exhaust cylinder according to any of claims 1 to 9.