Cylinder structure and horizontal rotor compressor

Abstract

The application discloses a cylinder structure and a horizontal rotor compressor. The cylinder body of the cylinder structure is provided with a cylinder cavity, a vane groove and a suction passage. The peripheral wall of the cylinder cavity is provided with an exhaust port. The vane groove comprises a first end close to the cylinder cavity. The suction passage is arranged in a spaced manner with the vane groove. A through hole is arranged on the inner wall of the first end of the vane groove and is arranged on the side away from the suction passage along the circumference of the cylinder body. The through hole is communicated with the first end of the vane groove. The through hole extends along the axial direction and penetrates through the cylinder body. A communication groove is arranged to communicate the through hole and the exhaust port. A spring hole is communicated with the vane groove and extends along the axial direction of the cylinder body. The projection of the first end of the vane groove and the projection of the spring hole do not coincide. The lubrication effect of the high-pressure side of the vane groove is improved, the wear of the vane and the high-pressure side of the vane groove is reduced, and the service life of the cylinder body is prolonged. The compression jam and the fatigue damage of the valve plate caused by the exhaust liquid are reduced. The exhaust noise is reduced.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more particularly to a cylinder structure and a horizontal rotary compressor. Background Technology

[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas; it is the heart of a refrigeration system. Among them, horizontal rotary compressors have advantages such as low center of gravity and small installation space, and are widely used in refrigerators, freezers, and vehicle air conditioning systems.

[0003] Currently, after long-term operation, the wear of the blade slots near the cylinder chamber of horizontal rotary compressors is severe, at least 30% to 50% higher than other parts of the blade slots. The wear is particularly severe on the high-pressure side of the blade slots (the end of the blade slots away from the intake passage). This is because the blade slots are subjected to high pressure in this area, which makes oil supply difficult. In addition, when the horizontal rotary compressor is running, the compressed refrigerant gas is discharged through the exhaust valve. During this process, the valve plate in the exhaust valve impacts the baffle, which causes exhaust noise. Summary of the Invention

[0004] The purpose of this invention is to provide a cylinder structure and a horizontal rotor compressor to solve the problems of severe high-pressure side wear of the blade slots, difficulty in oil supply, and exhaust noise caused by valve plate impacting the baffle in existing cylinder structures.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A cylinder structure comprising:

[0007] A cylinder body has a cylinder chamber extending along the axial direction of the cylinder body, a vane groove extending radially along the cylinder body and communicating with the cylinder chamber, and an intake passage extending radially along the cylinder body and communicating with the cylinder chamber. A piston is rotatably disposed in the cylinder chamber. An exhaust port is provided on the peripheral wall of the cylinder chamber. A vane is movably disposed in the vane groove. The vane groove includes a first end near the cylinder chamber and a second end away from the cylinder chamber. Along the circumference of the cylinder body, the vane groove and the intake passage are spaced apart. The end of the intake passage away from the cylinder chamber is used to install an intake pipe.

[0008] A through hole is formed on the inner wall of the first end of the blade groove and is located on the side away from the intake channel along the circumference of the cylinder body. The through hole is connected to the first end of the blade groove and extends along the axial direction of the cylinder body and penetrates the cylinder body.

[0009] A communication groove is communicated with the through hole at one end and communicated with the exhaust port at the other end, and the extension direction of the communication groove is arranged at an acute angle with the extension direction of the vane groove;

[0010] A spring hole is opened in the cylinder body along the radial direction of the cylinder body and communicated with the vane groove, and the projection of the first end of the vane groove along the axial direction of the cylinder body does not coincide with the projection of the spring hole.

[0011] As a preferred scheme of the above-mentioned cylinder structure, the through hole is a tapered hole, and the large end of the tapered hole is communicated with one end of the communication groove.

[0012] As a preferred scheme of the above-mentioned cylinder structure, the taper angle of the tapered hole is α, and the range of the α is greater than 0° and less than 45°.

[0013] As a preferred scheme of the above-mentioned cylinder structure, the included angle between the extension direction of the communication groove and the extension direction of the vane groove is β, and the range of the β is greater than 0° and less than 90°.

[0014] As a preferred scheme of the above-mentioned cylinder structure, along the axial direction of the cylinder body, the one end of the through hole and the projection shape of the area surrounded by one side of the vane groove where the through hole is located are in the shape of an arc.

[0015] As a preferred scheme of the above-mentioned cylinder structure, the central angle of the arc is θ, and the range of the θ is 90° to 270°.

[0016] As a preferred scheme of the above-mentioned cylinder structure, the θ is preferably 180°.

[0017] A horizontal rotor compressor includes a shell, and a motor, a piston, a crankshaft, a first cylinder end cover, a second cylinder end cover, a vane and a spring arranged inside the shell, and further includes the above-mentioned cylinder structure, along the axial direction of the cylinder body, the first cylinder end cover and the second cylinder end cover are detachably installed at both ends of the cylinder body, the first cylinder end cover and the second cylinder end cover can close both ends of the through hole, the first cylinder end cover and the second cylinder end cover are both provided with shaft holes, the crankshaft is arranged in the two shaft holes and the piston and is in transmission connection with the output end of the motor, the spring is arranged in the spring hole, and one end of the spring abuts against the vane, and the other end abuts against the inner wall of the shell.

[0018] As the preferred solution of the horizontal rotary compressor, the cylinder body is provided with a first fixed hole extending along the axial direction of the cylinder body along the circumferential direction of the cylinder body, the first cylinder end cover and the second cylinder end cover are both provided with a second fixed hole matched with the first fixed hole, and the first cylinder end cover, the cylinder body and the second cylinder end cover are detachably connected by the first fixed hole and the second fixed hole through a fastener.

[0019] The present application has the following advantages:

[0020] The present application provides a cylinder structure, which comprises a cylinder body, a through hole, a communication groove and a spring hole. The cylinder body is provided with a cylinder chamber extending along the axial direction of the cylinder body, a vane slot extending along the radial direction of the cylinder body and communicating with the cylinder chamber, and a suction passage extending along the radial direction of the cylinder body and communicating with the cylinder chamber. A piston is rotatably arranged in the cylinder chamber, and a discharge port is arranged in the circumferential wall of the cylinder chamber. A vane is movably arranged in the vane slot, and the vane slot comprises a first end close to the cylinder chamber and a second end away from the cylinder chamber. The vane slot and the suction passage are arranged at intervals along the circumferential direction of the cylinder body, and the end of the suction passage away from the cylinder chamber is used for mounting a suction pipe. The through hole is arranged on the inner wall of the first end of the vane slot and on the side away from the suction passage along the circumferential direction of the cylinder body. The through hole communicates with the first end of the vane slot and extends along the axial direction of the cylinder body and penetrates the cylinder body. One end of the communication groove communicates with the through hole, and the other end communicates with the discharge port. The extension direction of the communication groove is arranged at an acute angle with the extension direction of the vane slot. The spring hole is arranged in the cylinder body along the radial direction of the cylinder body and communicates with the vane slot. The projection of the first end of the vane slot and the projection of the spring hole do not coincide along the axial direction of the cylinder body. In detail, the through hole and the communication groove correspond to an oil storage structure. When there is too much oil in the cylinder body, it can be stored in the through hole and the communication groove. Since the through hole communicates with the high-pressure side of the vane slot and penetrates the cylinder body, the contact area of the oil in the through hole and the vane is ensured. Therefore, the oil in the through hole and the communication groove can fully lubricate the high-pressure side of the vane and the vane slot, thereby effectively reducing the wear of the high-pressure side of the vane and the vane slot. Further, when there is excess liquid refrigerant in the cylinder body, it can also be stored in the through hole, thereby reducing the exhaust liquid valve plate condition, thereby avoiding compression jamming and valve plate fatigue damage. In addition, the compressed refrigerant gas can enter the through hole through the discharge port and the communication groove. In this process, since the through hole adopts a conical structure, the reflection of sound waves in the through hole is increased, thereby playing a sound reduction effect of reducing exhaust noise.

[0021] The application improves the lubricating effect of the high-pressure side of the vane groove, reduces the abrasion between the vane and the high-pressure side of the vane groove, and prolongs the service life of the cylinder body; reduces the compression jam and the fatigue damage of the valve plate caused by the exhaust liquid impact; and reduces the exhaust noise.

[0022] The application also provides a horizontal rotor compressor, which comprises a shell, a motor, a piston, a crankshaft, a first cylinder end cover, a second cylinder end cover, a vane, a spring and the above-mentioned cylinder structure. By applying the above-mentioned cylinder structure to the horizontal rotor compressor, the lubricating effect of the high-pressure side of the vane groove is improved, the abrasion between the vane and the high-pressure side of the vane groove is reduced, and the service life of the horizontal rotor compressor can be effectively prolonged; the phenomenon of the exhaust liquid impact of the valve plate during the operation of the horizontal rotor compressor is reduced, the operating power of the compressor is reduced, the compression jam and the fatigue damage of the valve plate are avoided, and the noise during the operation of the horizontal rotor compressor is also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a cross-sectional schematic view of a cylinder structure and a horizontal rotor compressor provided by an embodiment of the application;

[0024] Figure 2 is a structural schematic view of a cylinder structure and a horizontal rotor compressor provided by an embodiment of the application;

[0025] Figure 3 is Figure 1 is an enlarged schematic view of A in FIG. 1;

[0026] Figure 4 is Figure 2 is an enlarged schematic view of B in FIG. 1;

[0027] Figure 5 is Figure 4 is another structural schematic view of the through hole in FIG. 1;

[0028] Figure 6 is Figure 4 is another structural schematic view of the through hole in FIG. 1.

[0029] In the drawings:

[0030] 1, cylinder body; 11, cylinder chamber; 12, vane groove; 13, suction passage; 14, through hole; 15, communication groove; 16, exhaust port; 17, spring hole; 18, first fixing hole;

[0031] 2, piston;

[0032] 3, vane;

[0033] 4, crankshaft;

[0034] 51, first cylinder end cover; 52, second cylinder end cover. DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be merely exemplary of the application and that the application may be practiced by other than the specifically described and illustrated embodiments. Furthermore, it should be understood that the terminology used herein is for the purpose of describing the present application and should not be regarded as limiting.

[0036] In the description of the present application, unless otherwise clearly specified and limited, the terms "connected", "connected to", "fixed", "fixedly connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "under" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the present embodiment, the terms "upper", "lower", "right", and other orientation or position relationships are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation on the present application.

[0040] As Figures 1 to 6As shown in the drawings, the embodiment of the present application provides a cylinder structure, which specifically comprises a cylinder body 1, a through hole 14, a communication groove 15 and a spring hole 17.

[0041] Specifically, as shown in the drawings, Figure 1 and Figure 2 As shown in the drawings, the cylinder body 1 is provided with a cylinder chamber 11 which is opened along the axial direction of the cylinder body 1, a vane groove 12 which extends along the radial direction of the cylinder body 1 and is communicated with the cylinder chamber 11, and an air suction passage 13 which extends along the radial direction of the cylinder body 1 and is communicated with the cylinder chamber 11, the piston 2 is rotatably arranged in the cylinder chamber 11, the peripheral wall of the cylinder chamber 11 is provided with an exhaust port 16, the vane 3 is movably arranged in the vane groove 12, the vane groove 12 comprises a first end which is close to the cylinder chamber 11 and a second end which is away from the cylinder chamber 11, the vane groove 12 and the air suction passage 13 are arranged in a spaced manner along the circumferential direction of the cylinder body 1, and the end of the air suction passage 13 which is away from the cylinder chamber 11 is used for mounting an air suction pipe; the through hole 14 is arranged on the inner wall of the first end of the vane groove 12 and is arranged on the side of the vane groove 12 which is away from the air suction passage 13 along the circumferential direction of the cylinder body 1, the through hole 14 is communicated with the first end of the vane groove 12, the through hole 14 extends along the axial direction of the cylinder body 1 and penetrates through the cylinder body 1; one end of the communication groove 15 is communicated with the through hole 14, the other end of the communication groove 15 is communicated with the exhaust port 16, and the extension direction of the communication groove 15 is arranged at an acute angle with the extension direction of the vane groove 12, the spring hole 17 is arranged on the cylinder body 1 along the radial direction of the cylinder body 1 and is communicated with the vane groove 12, and the projection of the first end of the vane groove 12 does not coincide with the projection of the spring hole 17 along the axial direction of the cylinder body 1.

[0042] In detail, in operation, as shown in the drawings, Figure 1 and Figure 2 As shown in the drawings, when there is excessive oil in the cylinder body 1, part of the oil can flow into the through hole 14 through the exhaust port 16 and the communication groove 15, at this time, the through hole 14 and the communication groove 15 correspond to an oil storage structure, since the through hole 14 is communicated with the high-pressure side of the vane groove 12 and the through hole 14 penetrates through the cylinder body 1, thus ensuring the contact area between the oil in the through hole 14 and the vane 3, therefore, the oil in the through hole 14 can sufficiently lubricate the vane 3 and the high-pressure side of the vane groove 12, thus effectively reducing the abrasion of the vane 3 and the high-pressure side of the vane groove 12; further, when there is excessive liquid refrigerant in the cylinder body 1, the liquid refrigerant can also be stored in the through hole 14, so as to reduce the exhaust liquid impact on the valve plate, thus avoiding compression jamming and fatigue damage of the valve plate; in addition, the compressed refrigerant gas can enter the through hole 14 through the exhaust port 16 and the communication groove 15, in this process, the sound wave is continuously reflected in the through hole 14, thus playing a sound reduction effect of reducing exhaust noise.

[0043] In the embodiment, the through hole 14 and the communication groove 15 are arranged to improve the lubricating effect of the high-pressure side of the blade groove 12, reduce the abrasion between the blade 3 and the high-pressure side of the blade groove 12, and prolong the service life of the cylinder body 1; reduce the compression jam and valve fatigue damage caused by the exhaust liquid hammer valve plate; and reduce the exhaust noise.

[0044] Preferably, as shown in Figure 2 and Figure 3 , the through hole 14 is a tapered hole, and the large end of the tapered hole is in communication with one end of the communication groove 15. By arranging the through hole 14 as a tapered hole, the reflection of sound waves in the through hole 14 can be increased, thereby further reducing noise. Further, the taper angle of the tapered hole is α, and α ranges from greater than 0° to less than 45°. Specifically, different angle tapered hole cylinder structures can be selected according to actual needs, for example, when the exhaust noise is large, a cylinder structure with a tapered hole with a taper angle α ranging from 30° to 45° can be selected, and when the exhaust noise is small, a cylinder structure with a tapered hole with a taper angle α ranging from 10° to 20° can be selected.

[0045] Preferably, as shown in Figure 2 and 4 , the angle between the extension direction of the communication groove 15 and the extension direction of the blade groove 12 is β, and β ranges from greater than 0° to less than 90°. In this way, the through hole 14 is arranged at the first end of the blade groove 12 and on the high-pressure side of one end of the blade groove 12.

[0046] Preferably, as shown in Figure 2 and 4 , in the axial direction of the cylinder body 1, the one end of the through hole 14 and the projection shape of the area surrounded by the one side of the blade groove 12 where the through hole 14 is located are in the shape of an arc. In this way, the shape of the through hole 14 is similar to a resonant cavity, thereby being able to increase sound wave reflection and reduce noise. Specifically, the central angle of the arc is θ, and θ ranges from 90° to 270°, and further preferably, as shown in Figure 4 , θ is 180°, at this time, the arc is a "half circle arc", the contact surface of the through hole 14 with the blade 3 is the largest, thereby being able to better play a role in lubricating the blade 3 and the blade groove 12 and reducing the abrasion between the blade 3 and the high-pressure side of the blade groove 12. Of course, θ can also have other values, for example, as shown in Figure 5 , θ is 270°, at this time, the arc is a "super arc", the through hole 14 tends to be more circular, the reflection effect of sound waves is better, and the noise reduction effect is better, but the lubricating effect is worse than when θ is 180°, and the manufacturing difficulty is high; for another example, as shown in Figure 6 , θ is 90°, at this time, the arc is a "inferior arc", the manufacturing difficulty is low, but the noise reduction effect is relatively poor.

[0047] In detail, the vane groove 12 is used to install the vane 3. The first end of the vane groove 12 is the end close to the cylinder chamber 11. Along the axial direction of the cylinder body 1, the projection of the first end of the vane groove 12 does not coincide with the projection of the spring hole 17. The second end of the vane groove 12 is the end away from the cylinder chamber 11. Along the axial direction of the cylinder body 1, the projection of the second end of the vane groove 12 is located within the projection of the spring hole 17. The second end of the vane groove 12 is connected to a through hole that penetrates the cylinder body 1 along the axial direction of the cylinder body 1. The through hole has a circular projection shape along the axial direction of the cylinder body 1. This through hole is used for machining the vane groove 12.

[0048] Preferably, the through hole 14 is formed on the inner wall of the first end of the blade groove 12, and the projection of the through hole 14 along the axial direction of the cylinder body 1 does not overlap with the projection of the spring hole 17.

[0049] like Figure 1 and Figure 2 As shown, an embodiment of the present invention also provides a horizontal rotary compressor, including a housing, and a motor, piston 2, crankshaft 4, first cylinder end cover 51, second cylinder end cover 52, vane 3, spring, and the aforementioned cylinder structure disposed inside the housing. Specifically, along the axial direction of the cylinder body 1, the first cylinder end cover 51 and the second cylinder end cover 52 are detachably installed at both ends of the cylinder body 1. The first cylinder end cover 51 and the second cylinder end cover 52 can close both ends of the through hole 14. Both the first cylinder end cover 51 and the second cylinder end cover 52 are provided with shaft holes. The crankshaft 4 passes through the two shaft holes and the piston 2 and is connected to the output end of the motor. The spring is disposed in the spring hole 17, and one end of the spring abuts against the vane 3, and the other end abuts against the inner wall of the housing. In detail, when the horizontal rotary compressor is working, the motor drives the crankshaft 4 to rotate, and the crankshaft 4 drives the piston 2 to rotate eccentrically. The gaseous refrigerant enters the cylinder chamber 11 through the suction pipe and suction channel 13 and is continuously compressed to a certain pressure. Then it is discharged through the exhaust valve of the first cylinder end cover 51. During the rotation of the piston 2, the elastic restoring force of the spring can drive the blade 3 to press against the piston 2.

[0050] By applying the above-mentioned cylinder structure to the horizontal rotary compressor, the lubrication effect of the high-pressure side of the blade 3 and blade groove 12 in the horizontal rotary compressor is improved, the wear between the high-pressure side of the blade 3 and blade groove 12 is reduced, and the service life of the horizontal rotary compressor can be effectively extended. It can also reduce the risk of liquid slugging of the valve plate during the operation of the horizontal rotary compressor, reduce the operating power of the compressor, and avoid the phenomena of compression jamming and valve plate fatigue damage. In addition, it can also reduce the noise during the operation of the horizontal rotary compressor.

[0051] Specifically, along the circumference of the cylinder body 1, the cylinder body 1 is provided with a first fixing hole 18 extending along the axial direction of the cylinder body 1, the first cylinder end cover 51 and the second cylinder end cover 52 are both provided with a second fixing hole matched with the first fixing hole 18, and the fastener is used to detachably connect the first cylinder end cover 51, the cylinder body 1 and the second cylinder end cover 52 through the first fixing hole 18 and the second fixing hole. In this way, the first cylinder end cover 51, the cylinder body 1 and the second cylinder end cover 52 are convenient to disassemble.

[0052] Obviously, the above embodiments of the present application are merely exemplary and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A cylinder structure characterized by comprising: The application relates to a cylinder body (1) provided with a cylinder cavity (11) opened along the axial direction of the cylinder body (1), a vane groove (12) extending along the radial direction of the cylinder body (1) and communicated with the cylinder cavity (11), and an air suction channel (13) extending along the radial direction of the cylinder body (1) and communicated with the cylinder cavity (11), a piston (2) rotatably arranged in the cylinder cavity (11), a wall of the cylinder cavity (11) provided with an exhaust port (16), a vane (3) movably arranged in the vane groove (12), the vane groove (12) comprising a first end close to the cylinder cavity (11) and a second end away from the cylinder cavity (11), the vane groove (12) and the air suction channel (13) being arranged in a spaced manner along the circumferential direction of the cylinder body (1), and one end of the air suction channel (13) away from the cylinder cavity (11) being used for mounting an air suction pipe. A through hole (14) is arranged in the inner wall of the first end of the vane groove (12) and on the side away from the air suction channel (13) along the circumferential direction of the cylinder body (1), the through hole (14) is communicated with the first end of the vane groove (12), and the through hole (14) extends along the axial direction of the cylinder body (1) and penetrates the cylinder body (1). A communication groove (15) is communicated with the through hole (14) at one end and communicated with the exhaust port (16) at the other end, and the extension direction of the communication groove (15) is arranged at an acute angle with the extension direction of the vane groove (12). A spring hole (17) is arranged in the cylinder body (1) along the radial direction of the cylinder body (1) and communicated with the vane groove (12), and the projection of the first end of the vane groove (12) along the axial direction of the cylinder body (1) does not coincide with the projection of the spring hole (17). The projection shape of the area surrounded by one end of the through hole (14) and one side of the vane groove (12) where the through hole (14) is located along the axial direction of the cylinder body (1) is an arc shape. The through hole (14) is a tapered hole, and the large end of the tapered hole is communicated with one end of the communication groove (15).

2. A cylinder structure according to claim 1, characterized in that The taper angle of the tapered hole is alpha, and the alpha ranges from greater than 0 degrees to less than 45 degrees.

3. A cylinder arrangement according to claim 2, characterized in that The included angle between the extension direction of the communication groove (15) and the extension direction of the vane groove (12) is beta, and the beta ranges from greater than 0 degrees to less than 90 degrees.

4. A cylinder structure according to claim 1, characterized in that The central angle of the arc shape is theta, and the theta ranges from 90 degrees to 270 degrees.

5. A cylinder structure according to claim 1, wherein The theta is 180 degrees.

6. A cylinder structure according to claim 5, wherein ​ 7. A horizontal rotary compressor comprising a housing, and a motor, the piston (2), the crankshaft (4), the first cylinder end cover (51), the second cylinder end cover (52), the vane (3) and the spring provided inside the housing, characterized in that, The cylinder structure of any one of claims 1-6, along the axial direction of the cylinder body (1), the first cylinder end cover (51) and the second cylinder end cover (52) are detachably mounted at both ends of the cylinder body (1), the first cylinder end cover (51) and the second cylinder end cover (52) can close both ends of the through hole (14), the first cylinder end cover (51) and the second cylinder end cover (52) are both provided with shaft holes, the crankshaft (4) passes through the two shaft holes and the piston (2) and is drivingly connected with the output end of the motor, the spring is arranged in the spring hole (17), and one end of the spring abuts against the vane (3) and the other end abuts against the inner wall of the shell.

8. A hermetic compressor according to claim 7, characterized in that Along the circumferential direction of the cylinder body (1), the cylinder body (1) is provided with a first fixing hole (18) extending along the axial direction of the cylinder body (1), the first cylinder end cover (51) and the second cylinder end cover (52) are both provided with a second fixing hole matched with the first fixing hole (18), and a fastener detachably connects the first cylinder end cover (51), the cylinder body (1) and the second cylinder end cover (52) through the first fixing hole (18) and the second fixing hole.

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