Roller Compressor and Refrigeration Equipment

Abstract

The embodiment of the present application belongs to the technical field of compressor engineering, and particularly relates to a roller compressor and a refrigeration device. Among them, the roller compressor includes: a compression cylinder, the compression cylinder is provided with an accommodation space, and the compression cylinder is provided with an input port, an output port and a chute; a first bearing device, the first bearing device is provided with an oil passage; a crankshaft, the crankshaft is provided with an eccentric shaft section, and the eccentric shaft section is located in the accommodation space; a roller, the roller is sleeved on the eccentric shaft section; a slider assembly, the slider assembly includes a slider, the slider is slidably assembled in the chute, the slider extends into the accommodation space and cooperates with the side wall of the roller to isolate the input port and the output port, and the surface of the slider facing the first bearing device contacts the corresponding surface of the first bearing device; a muffler housing, a through hole is opened at the bottom of the oil groove of the muffler housing. Applying the technical solution solves the problems of how to reduce the frictional wear of the slider in the roller compressor and how to prevent the high-pressure gaseous refrigerant in the compression chamber from leaking into the low-pressure chamber.

Description

Technical Field

[0001] This application belongs to the technical field of compressor engineering, and particularly relates to a roller compressor and a refrigeration device. Background Art

[0002] The existing roller compressor includes a cylinder, rollers, a slider and a crankshaft. The cylinder is provided with a chute, an air inlet and an air outlet located on both sides of the chute. The slider is reciprocally slidably arranged in the chute. The rollers are arranged in the cylinder cavity. The rollers can eccentrically rotate under the drive of the crankshaft. The cylinder cavity is jointly defined by the rollers and the slider to form an air inlet cavity and a compression cavity. The gas in the compression cavity is output through the air outlet.

[0003] In the prior art, when the roller compressor is working, the slider reciprocates in the chute of the cylinder, and there will be friction between the upper and lower end surfaces of the slider and the upper and lower surfaces of the compression cavity. During the operation of the roller compressor, the lubrication between the lower end surface of the slider and the corresponding surface can ensure sufficient lubrication effect due to the relatively high oil level at the bottom of the compressor. However, the oil cannot be supplied sufficiently to the upper end surface of the slider, resulting in poor lubrication effect between the upper end surface of the slider and the corresponding surface, and increased friction and wear. In addition, during the operation of the roller compressor, when the power of the compressor increases, there is less lubricating oil between the upper end surface of the slider and the upper surface of the compression cavity, and the oil film thickness decreases, increasing the leakage between the upper end surface of the slider and the upper surface of the compression cavity, that is, causing high-pressure gas to leak into the low-pressure cavity, resulting in a decrease in volumetric efficiency, a decrease in refrigerating capacity, and a reduction in the efficiency of the compressor. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a roller compressor and a refrigeration device, aiming to solve the problems of how to reduce the friction and wear of the slider in the roller compressor and how to prevent the high-pressure gaseous refrigerant in the compression cavity from leaking into the low-pressure cavity, thereby improving the efficiency of the roller compressor.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is: a roller compressor, comprising: a compression cylinder, the compression cylinder is provided with a receiving space, the side wall of the compression cylinder is provided with an input port, an output port and a slide groove connected with the receiving space, and the slide groove is located between the input port and the output port; a first bearing device, the first bearing device is fixedly installed on the compression cylinder, the first bearing device is provided with an oil channel, and the oil channel is connected with the slide groove; a crankshaft, the crankshaft is assembled on the first bearing device, the crankshaft is provided with an eccentric shaft section, and the eccentric shaft section is located in the receiving space; a roller, the roller is sleeved on the eccentric shaft section, the eccentric shaft section drives the roller to rotate cyclically in the direction from the input port to the output port, and the side wall surface of the roller is in cyclic contact with the inner wall surface of the receiving space; a slider assembly, the slider assembly includes a slider, the slider is slidably assembled in the slide groove, the slider extends into the receiving space and cooperates with the side wall of the roller to isolate the input port and the output port, and the surface of the slider facing the first bearing device is in contact with the corresponding surface of the first bearing device; a muffler housing, The muffler housing is fixedly mounted on the first bearing device to form a muffler chamber, the muffler chamber is connected to the output port, the muffler housing is provided with an oil tank for storing oil, a through hole is opened at the bottom of the oil tank, and the through hole is connected to the oil channel.

[0006] Optionally, an oil storage groove is provided on the surface of the first bearing device facing the slider, the oil storage groove is connected to the oil channel, the circumferential side wall of the oil storage groove is closed, and the circumferential edge area of ​​the oil storage groove completely covers the slider.

[0007] Optionally, the oil storage groove is a long strip groove, and the length extension direction of the oil storage groove is consistent with the reciprocating sliding direction of the slider.

[0008] Optionally, the oil passage is a vertical oil passage, the axis direction of the oil passage is parallel to the extension direction of the crankshaft, and the oil passage is opposite to the slide groove; or, the oil passage is an inclined oil passage, the axis direction of the oil passage is at an angle to the extension direction of the crankshaft.

[0009] Optionally, the muffler housing is provided with an extension portion surrounding the muffler cavity, the storage space of the extension portion is communicated with the muffler cavity, and the wall surface of the storage space of the extension portion is used to guide the oil separated from the oil and gas to the oil tank.

[0010] Optionally, the storage space of the extension portion is an annular bowl groove surrounding the muffler cavity, and the oil groove is the bottom of the annular bowl groove.

[0011] Optionally, the roller compressor also includes a second bearing device, which is fixedly mounted on the side of the compression cylinder facing away from the first bearing device, the end of the crankshaft passing through the accommodating space is assembled on the second bearing device, and the surface of the slider facing away from the first bearing device is in contact with the corresponding surface of the second bearing device.

[0012] Optionally, the slider assembly further includes a force application structure, which is assembled in the chute. The force application structure is used to apply a force to the slider to make it abut against the roller, so that the slider abuts against the side wall of the roller.

[0013] Optionally, the force application structure includes a compression spring. The extending direction of the compression spring is consistent with the reciprocating sliding direction of the slider. One end of the compression spring abuts against the slider, and the other end abuts against the wall of the chute.

[0014] Optionally, the force application structure includes a first electromagnetic module and a second electromagnetic module. The first electromagnetic module is installed on the wall of the chute, and the second electromagnetic module is fixedly connected to the slider. The first electromagnetic module and the second electromagnetic module are opposite and spaced apart, and the connection direction between the two is consistent with the reciprocating sliding direction of the slider. Moreover, the opposite magnetic poles between the first electromagnetic module and the second electromagnetic module are of the same sex.

[0015] According to another aspect of the embodiments of the present application, a refrigeration device is provided. Specifically, the refrigeration device includes the aforementioned roller compressor.

[0016] The embodiments of the present application at least have the following beneficial effects:

[0017] Applying the roller compressor provided by the embodiments of the present invention to a refrigeration device to compress gaseous refrigerant. During the process of the crankshaft driving the roller to rotate, the gaseous refrigerant is sucked into the accommodation space from the input port, and then is compressed by the roller. The compressed gaseous refrigerant is output from the output port. During the process of the crankshaft driving the roller to rotate, the slider reciprocates in the chute, and the oil in the oil sump flows into the oil passage through the through hole under the action of gravity and enters between the corresponding surfaces of the slider and the first bearing device, so that sufficient oil can be supplemented between the corresponding surfaces of the slider and the first bearing device, thereby achieving a good lubrication effect between the two and reducing the friction and wear between the corresponding surfaces of the slider and the first bearing device. Moreover, the corresponding surfaces of the slider and the first bearing device are filled with oil, so that good sealing is achieved between the two through the oil, thereby preventing leakage between the corresponding surfaces of the slider and the first bearing device, that is, preventing the high-pressure gaseous refrigerant in the compression chamber from leaking to the low-pressure chamber, ensuring the stability of the volumetric efficiency of the roller compressor, and further ensuring the compression efficiency of the roller compressor. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the internal structure of the roller compressor according to an embodiment of the present invention;

[0020] Figure 2 is Figure 1 a cross-sectional view taken along the A-A direction in

[0021] Figure 3 is Figure 2 an enlarged view of part B in

[0022] Figure 4 It is the front view of the silencer housing of the roller compressor according to an embodiment of the present invention;

[0023] Figure 5 is Figure 4 the top view of the silencer housing shown in

[0024] Figure 6 is Figure 5 a cross-sectional view taken along the C-C direction in

[0025] Figure 7 is Figure 6 an enlarged view of part D in

[0026] Figure 8 It is the front view of the first bearing device of the roller compressor according to an embodiment of the present invention;

[0027] Figure 9 is Figure 8 the bottom view of the first bearing device shown in

[0028] Figure 10 is Figure 9 an enlarged view of part E in

[0029] Figure 11 is Figure 9 a cross-sectional view taken along the F-F direction in

[0030] Among them, each reference numeral in the figure:

[0031] 10, compression cylinder; 11, accommodation space; 12, input port; 13, chute; 14, valve plate; 20, first bearing device; 21, oil passage; 22, oil storage tank; 30, crankshaft; 31, eccentric shaft section; 40, roller; 50, slider assembly; 51, slider; 52, force application structure; 60, silencer housing; 61, oil groove; 62, storage space; 63, through hole; 64, silencing cavity; 65, extension part; 66, shell outlet; 70, second bearing device. Detailed implementation manners

[0032] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the embodiments of the present application, and should not be construed as limiting the embodiments of the present application.

[0033] In the description of the embodiments of the present application, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying 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 embodiments of the present application.

[0034] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0036] As Figures 1 to 11As shown in the figure, the roller compressor provided by the embodiment of the present invention includes a compression cylinder 10, a first bearing device 20, a crankshaft 30, a roller 40, a slider assembly 50 and a muffler housing 60. The compression cylinder 10 is provided with a receiving space 11. An input port 12, an output port and a chute 13 communicating with the receiving space 11 are formed in the side wall of the compression cylinder 10. The chute 13 is located between the input port 12 and the output port. The first bearing device 20 is fixedly installed on the compression cylinder 10. The first bearing device 20 is provided with an oil passage 21, and the oil passage 21 communicates with the chute 13. The crankshaft 30 is assembled in the first bearing device 20. The crankshaft 30 is provided with an eccentric shaft section 31, and the eccentric shaft section 31 is located in the receiving space 11. The roller 40 is sleeved on the eccentric shaft section 31. The eccentric shaft section 31 drives the roller 40 to rotate cyclically in the direction from the input port 12 to the output port, and the side wall surface of the roller 40 is in cyclic contact with the inner wall surface of the receiving space 11. The slider assembly 50 includes a slider 51. The slider 51 is slidably assembled in the chute 13. The slider 51 extends into the receiving space 11 and cooperates with the side wall of the roller 40 to isolate the input port 12 and the output port. Thus, the receiving space 11 is divided into a suction chamber and a compression chamber (the suction chamber communicates with the input port 12, and the compression chamber communicates with the output port) by the roller 40 and the slider 51. Moreover, the surface of the slider 51 facing the first bearing device 20 is in contact with the corresponding surface of the first bearing device 20. The muffler housing 60 is fixedly installed on the first bearing device 20 to form a muffler chamber 64. The muffler chamber 64 communicates with the output port. And a valve plate 14 is installed on the first bearing device 20 to prevent the high-pressure gas in the muffler chamber 64 from flowing back into the compression chamber. That is to say, the valve plate 14 is a one-way valve, and the air flow path can only be from the compression chamber to the muffler chamber 64. The muffler housing 60 is provided with an oil sump 61 for storing oil. A through hole 63 is formed in the bottom of the oil sump 61, and the through hole 63 communicates with the oil passage 21.

[0037] Apply the roller compressor provided by the embodiment of the present invention in a refrigeration device to compress gaseous refrigerant. During the process of the crankshaft 30 driving the roller 40 to rotate, the gaseous refrigerant is sucked into the accommodation space 11 from the input port 12, and then compressed by the roller 40. The compressed gaseous refrigerant is output from the output port to the sound deadening cavity 64 to achieve noise reduction. During the process of the crankshaft 30 driving the roller 40 to rotate, the slider 51 reciprocates and slides in the chute 13. Under the action of gravity, the oil in the oil sump 61 flows into the oil passage 21 through the through hole 63 and enters between the corresponding surfaces of the slider 51 and the first bearing device 20, so that sufficient oil can be supplemented between the corresponding surfaces of the slider 51 and the first bearing device, thereby achieving a good lubrication effect between the two and reducing the friction and wear between the corresponding surfaces of the slider 51 and the first bearing device 20. Moreover, the corresponding surfaces of the slider 51 and the first bearing device 20 are filled with oil, enabling good sealing between the two through the oil, thereby preventing leakage between the corresponding surfaces of the slider 51 and the first bearing device 20, that is, preventing the high-pressure gaseous refrigerant in the compression chamber from leaking to the low-pressure chamber, ensuring the stability of the volumetric efficiency of the roller compressor, and further ensuring the compression efficiency of the roller compressor.

[0038] In the embodiment of the present invention, the oil passage 21 is a vertical oil passage. The oil passage 21 directly leads from the through hole 63 of the oil sump 61 to the chute 13. The axial direction of the hole of the oil passage 21 is parallel to the extending direction of the crankshaft 30, and the oil passage 21 faces the chute 13, so that the path of the oil passage 21 is the shortest.

[0039] In a feasible embodiment, the oil passage 21 can also be an inclined oil passage. The axial direction of the hole of the oil passage 21 forms an acute angle with the extending direction of the crankshaft 30, that is, the oil passage 21 is drilled obliquely with respect to the extending direction of the crankshaft 30. Or, the oil passage 21 can also be a curved oil passage. In this application, the oil passage 21 only needs to meet the following conditions: both ends of the oil passage 21 are respectively communicated with the oil sump 61 and the chute 13, so that the oil in the oil sump 61 can flow to the upper end surface of the slider 51. Whether it is a straight oil passage, a curved oil passage, or an oil passage of other shapes, it can be applied, so it is not limited here.

[0040] Such as Figure 3 、 Figures 9 to 11As shown, an oil storage groove 22 is provided on the surface of the first bearing device 20 facing the slider 51. The oil storage groove 22 communicates with the oil passage 21. The coverage area of the oil storage groove 22 is larger than the cross-sectional area of the outlet of the oil passage 21. The oil storage groove 22 covers the slider 51, so that the upper surface of the slider 51 can contact the oil fluid in a larger range. That is, the length of the slider 51 is greater than the length of the oil storage groove 22, and the width of the slider 51 is also greater than the width of the oil storage groove 22. During the reciprocating sliding of the slider 51 in the sliding groove 13, the oil storage groove 22 always covers the slider 51. The oil fluid flowing in from the oil passage 21 fills the oil storage groove 22, so that the oil fluid can bring the oil fluid between the corresponding surfaces of the slider 51 and the first bearing device 20 during the sliding process of the slider 51. This can not only achieve a good lubrication effect, but also achieve a good sealing performance between the oil fluid and the corresponding surfaces of the slider 51 and the first bearing device 20, effectively preventing leakage.

[0041] In the embodiment of the present invention, the oil storage groove 22 is a long strip-shaped groove, as Figure 10 shown. Actually, the contour shape of the oil storage groove 22 in this embodiment is a kidney shape. Moreover, the length extension direction of the oil storage groove 22 is consistent with the reciprocating sliding direction of the slider 51. The oil fluid fills the oil storage groove 22, so that the oil fluid can bring the oil fluid between the corresponding surfaces of the slider 51 and the first bearing device 20 during the sliding process of the slider 51. This can not only achieve a good lubrication effect, but also achieve a good sealing performance between the oil fluid and the corresponding surfaces of the slider 51 and the first bearing device 20, effectively preventing leakage.

[0042] The silencer housing 60 is provided with an extension portion 65 surrounding the silencing cavity 64. The storage space 62 of the extension portion 65 communicates with the silencing cavity 64 through a housing outlet 66. After the silencer housing 60 is installed, the housing outlet 66 is located directly above the valve plate 14, as Figure 2 and Figure 5As shown, after the compressed gaseous refrigerant in the compression chamber flows from the output port to the silencing chamber 64 for noise reduction, the gaseous refrigerant continues to flow vertically upward from the housing outlet 66, and the upward-flowing gaseous refrigerant will collide with the bottom wall surface of other components of the compressor directly above the silencer housing 60 (such as the bottom wall surface of the motor frame), so that the gaseous refrigerant is blocked and changes direction to blow to the extension portion 65 or the blocked gaseous refrigerant generates a cyclone and flows to the extension portion 65 to contact its wall surface. Since the gaseous refrigerant carries atomized oil droplets, when the gaseous refrigerant contacts the bottom wall surface of other components of the compressor and the wall surface of the storage space 62 of the extension portion 65, the oil adheres to the wall surface. When enough oil has accumulated, the oil will flow to the oil sump 61 under the action of gravity. That is to say, the wall surface of the storage space 62 of the extension portion 65 is used to guide the oil separated from the oil and gas to the oil sump 61. And, in the embodiment of the present application, the storage space 62 of the extension portion 65 is an annular bowl-shaped groove surrounding the silencing chamber 64, and the oil sump 61 is the bottom of the annular bowl-shaped groove.

[0043] As Figure 1 and Figure 2 shown, the roller compressor further includes a second bearing device 70, and the second bearing device 70 is fixedly installed on the side of the compression cylinder 10 away from the first bearing device 20. In the embodiment of the present invention, the first bearing device 20, the compression cylinder 10, the slider 51, and the second bearing device 70 form a working chamber, and the roller 40 divides the working chamber into a suction chamber (the suction chamber is communicated with the input port 12) and a compression chamber (the compression chamber is communicated with the output port) during operation. The end of the crankshaft 30 passing through the accommodation space 11 is assembled to the second bearing device 70, and the surface of the slider 51 away from the first bearing device 20 contacts the corresponding surface of the second bearing device 70.

[0044] As Figure 2 and Figure 3 shown, the slider assembly 50 further includes a force application structure 52, and the force application structure 52 is assembled in the chute 13. The force application structure 52 is used to apply a force to the slider 51 to make it abut against the roller 40, so that the slider 51 always abuts against the side wall of the roller 40. In this way, during the rolling process of the roller 40, the accommodation space 11 is divided into a suction chamber and a compression chamber by the roller 40 and the slider 51. Specifically, in the embodiment of the present invention, the force application structure 52 includes a compression spring, and the extension direction of the compression spring is the same as the reciprocating sliding direction of the slider 51. One end of the compression spring abuts against the slider 51, and the other end abuts against the wall of the chute 13. During the operation of the roller 40, when the roller 40 performs a compression stroke, the roller 40 pushes the slider 51 to slide to compress the compression spring. Then, when the roller 40 enters the suction stroke, the elastic force of the compression spring acts on the slider 51, so that the slider 51 always abuts against the side wall surface of the roller 40.

[0045] In another feasible embodiment, the force application structure 52 includes a first electromagnetic module (not shown) and a second electromagnetic module (not shown). The first electromagnetic module is mounted on the groove wall of the sliding groove 13, and the second electromagnetic module is fixedly connected to the slider 51. The first electromagnetic module and the second electromagnetic module are opposite and spaced apart, and the connection direction between the two is the same as the reciprocating sliding direction of the slider 51. Moreover, the opposite magnetic poles between the first electromagnetic module and the second electromagnetic module are of the same polarity. That is, the principle of repulsion between like poles of the first electromagnetic module and the second electromagnetic module is adopted, so that a repulsive force is generated between the first electromagnetic module and the second electromagnetic module. During the operation of the roller 40, when the roller 40 executes the compression stroke, the roller 40 pushes the slider 51 to slide to shorten the distance between the first electromagnetic module and the second electromagnetic module. At this time, the repulsive force between the first electromagnetic module and the second electromagnetic module continuously increases. Then, when the roller 40 enters the suction stroke, the slider 51 is subjected to the repulsive force of the first electromagnetic module on the second electromagnetic module, so that the slider 51 always abuts against the side wall surface of the roller 40.

[0046] According to another aspect of the embodiments of the present invention, a refrigeration device (not shown) is provided. Specifically, the refrigeration device includes the roller compressor as described above.

[0047] Applying the roller compressor provided by the embodiments of the present invention in a refrigeration device to compress gaseous refrigerant. During the process of the crankshaft 30 driving the roller 40 to operate, the gaseous refrigerant is sucked into the accommodation space 11 from the input port 12, and then is compressed by the roller 40. The compressed gaseous refrigerant is output from the output port. During the process of the crankshaft 30 driving the roller 40 to operate, the slider 51 reciprocates and slides in the sliding groove 13. The oil in the oil sump 61 flows into the oil passage 21 through the through hole 63 under the action of gravity and enters between the corresponding surfaces of the slider 51 and the first bearing device 20, so that sufficient oil can be supplemented between the corresponding surfaces of the slider 51 and the first bearing device, thereby achieving a good lubrication effect between the two and reducing the friction and wear between the corresponding surfaces of the slider 51 and the first bearing device 20. Moreover, the corresponding surfaces of the slider 51 and the first bearing device 20 are filled with oil, so that good sealing is achieved between the two through the oil, thereby preventing leakage between the corresponding surfaces of the slider 51 and the first bearing device 20, ensuring the stability of the volumetric efficiency of the roller compressor, and further ensuring the compression efficiency of the roller compressor.

[0048] The above are only the preferred embodiments of the embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the present application.

Claims

1. A roller compressor, characterized in that, include: A compression cylinder, wherein the compression cylinder is provided with a receiving space, and a side wall of the compression cylinder is provided with an input port, an output port and a slide groove which are connected with the receiving space, and the slide groove is located between the input port and the output port; A first bearing device, the first bearing device is fixedly mounted on the compression cylinder, the first bearing device is provided with an oil passage, and the oil passage is communicated with the slide groove; A crankshaft, the crankshaft is assembled on the first bearing device, the crankshaft is provided with an eccentric shaft section, and the eccentric shaft section is located in the accommodating space; The roller is sleeved on the eccentric shaft section, and the eccentric shaft section drives the roller to cyclically rotate in the direction from the input port to the output port, and the side wall surface of the roller is in cyclic contact with the inner wall surface of the accommodating space; A slider assembly, the slider assembly includes a slider, the slider is slidably assembled in the slide groove, the slider extends into the accommodating space and cooperates with the side wall of the roller to isolate the input port and the output port, and the surface of the slider facing the first bearing device contacts the corresponding surface of the first bearing device; A muffler housing, the muffler housing is fixedly mounted on the first bearing device to form a muffler chamber, the muffler chamber is connected to the output port, the muffler housing is provided with an oil groove for containing oil, a through hole is opened at the bottom of the oil groove, and the through hole is connected to the oil channel; An oil storage groove is provided on the surface of the first bearing device facing the slider, the oil storage groove is connected to the oil passage, the circumferential side wall of the oil storage groove is closed, and the circumferential edge area of ​​the oil storage groove completely covers the slider; The oil in the oil tank flows into the oil channel through the through hole under the action of gravity and fills the oil storage tank, so that sufficient oil can be replenished between the sliding block and the corresponding surface of the first bearing device.

2. The roller compressor according to claim 1, characterized in that, The oil storage tank is a long strip-shaped tank, and the length extension direction of the oil storage tank is consistent with the reciprocating sliding direction of the slider.

3. The roller compressor according to claim 1, characterized in that, The oil channel is a vertical oil channel, the hole axis direction of the oil channel is parallel to the extension direction of the crankshaft, and the oil channel is opposite to the slide groove; Alternatively, the oil passage is an inclined oil passage, and the direction of the hole axis of the oil passage forms an angle with the extension direction of the crankshaft.

4. The roller compressor according to any one of claims 1-3, characterized in that, The muffler shell is provided with an extension part surrounding the muffler cavity, the storage space of the extension part is communicated with the muffler cavity, and the wall surface of the storage space of the extension part is used for guiding the oil separated from the oil and gas to the oil tank.

5. The roller compressor according to claim 4, characterized in that, The storage space of the extension part is an annular bowl groove surrounding the muffler cavity, and the oil groove is the groove bottom of the annular bowl groove.

6. The roller compressor according to claim 1, characterized in that, The roller compressor also includes a second bearing device, which is fixedly mounted on the side of the compression cylinder away from the first bearing device. The end of the crankshaft that passes through the accommodating space is assembled on the second bearing device, and the surface of the slider away from the first bearing device is in contact with the corresponding surface of the second bearing device.

7. The roller compressor according to claim 1, characterized in that, The slider assembly also includes a force-applying structure, which is assembled in the slide groove and is used to apply a force to the slider to make it press against the roller, so that the slider presses against the side wall of the roller.

8. The roller compressor according to claim 6, characterized in that, The force-applying structure includes a compression spring, the extension direction of the compression spring is consistent with the reciprocating sliding direction of the slider, one end of the compression spring abuts against the slider, and the other end abuts against the groove wall of the slide groove; Alternatively, the force application structure includes a first electromagnetic module and a second electromagnetic module. The first electromagnetic module is installed on the groove wall of the chute, and the second electromagnetic module is fixedly connected to the slider. The first electromagnetic module and the second electromagnetic module are opposite and spaced apart, and the direction of the line connecting the two is the same as the reciprocating sliding direction of the slider. Moreover, the opposite magnetic poles between the first electromagnetic module and the second electromagnetic module are of the same polarity.

9. A refrigeration device, characterized in that, Comprising a roller compressor according to any one of claims 1-8.

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