A scroll compressor lubrication mechanism

Abstract

The present invention discloses a scroll compressor lubrication mechanism, comprising: a lubrication mechanism body, the lubrication mechanism body is fixed to the bottom of the shell of the scroll compressor, and the lubrication mechanism body is provided with a mounting hole for rotatably mounting a rotating shaft of the scroll compressor, and the lubrication mechanism body is provided with a plurality of lubricating oil flow channels; a guide pipe, the guide pipe is located in the shell, and the oil inlet end of the guide pipe is connected to the lubricating oil flow channel, the oil outlet end of the guide pipe extends upward and lubricates the parts in the shell, and the end of the lubricating oil flow channel away from the guide pipe is connected to an oil supply unit. The present invention has the advantage of high lubrication efficiency.

Description

Technical Field

[0001] The invention relates to the field of compressors, and in particular to a scroll compressor lubrication mechanism. Background Art

[0002] During the operation of the scroll compressor, most of the parts are lubricated by the lubricating oil carried by the refrigerant during the suction process. The lubrication effect is limited, and the lubrication is not sufficient under certain special speeds and working conditions. Therefore, the use of the compressor is subject to certain restrictions. In view of this, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0003] In order to solve the above technical problems, the present invention proposes a scroll compressor lubrication mechanism, which limits the rotating shaft of the scroll compressor by setting a lubrication mechanism body, and the lubricating oil guide channel in the lubricating mechanism body can transport the lubricating oil in the oil supply unit upward, so as to lubricate the upper parts. The lubricating oil drips under the action of gravity and lubricates each part. Finally, the lubricating oil returns to the oil supply unit. This technical solution has the advantage of high lubrication efficiency.

[0004] Specifically, the present invention discloses a scroll compressor lubrication mechanism, comprising:

[0005] A lubricating mechanism body, wherein the lubricating mechanism body is fixed to the bottom of the housing of the scroll compressor, and the lubricating mechanism body is provided with a mounting hole for rotatably mounting a rotating shaft of the scroll compressor, and the lubricating mechanism body is provided with a plurality of lubricating oil flow channels;

[0006] The guide pipe is located in the shell, and the oil inlet end of the guide pipe is connected to the lubricating oil flow channel. The oil outlet end of the guide pipe extends upward to lubricate the parts in the shell, and the end of the lubricating oil flow channel away from the guide pipe is connected to an oil supply unit.

[0007] Working principle: the lubricating oil in the oil supply unit flows into the guide tube through the lubricating oil flow channel of the lubricating mechanism body, and then lubricates the parts in the shell from top to bottom. Under the action of gravity, the lubricating oil finally drips back into the oil supply unit.

[0008] The rotating shaft may adopt a hollow structure, and a transverse through hole may be arranged along the radial direction of the rotating shaft, so as to facilitate the lubricating oil to be transported to various components along the rotating shaft.

[0009] Furthermore, a throttling device is installed at the oil outlet end of the guide pipe.

[0010] Preferably, the lubrication mechanism body comprises a flow diverter, in which a first through hole communicating with the flow guide pipe is provided, and a guide hole for rotatably mounting the rotating shaft is provided on the flow diverter.

[0011] Furthermore, the lubrication mechanism body also includes:

[0012] A first mounting seat, the first mounting seat is closely mounted on the lower surface of the diverter, and the first mounting seat is provided with a first rotating shaft hole for accommodating the rotating shaft;

[0013] The second mounting seat is arranged on the lower surface of the first mounting seat, and the rotating shaft is rotatably mounted in the second mounting seat.

[0014] Preferably, a first groove is provided on a side of the first mounting seat facing the diverter, a first eccentric wheel is provided in the first groove, a second rotating shaft hole is provided on the first eccentric wheel, the aperture of the second rotating shaft hole is smaller than the aperture of the first rotating shaft hole, and the rotating shaft is fixed in the second rotating shaft hole.

[0015] The preferred technical effect is that the gap between the first shaft hole and the shaft is used for the flow of lubricating oil, the first eccentric wheel rotates with the shaft, and an oil chamber for the flow of lubricating oil is formed between the first eccentric wheel and the first mounting seat, thereby improving the efficiency of the lubricating oil circulation.

[0016] Preferably, a first gasket is provided on the first groove, the first gasket is fitted on the upper surface of the first eccentric wheel, and a third rotating shaft hole is provided on the first gasket, and the aperture of the third rotating shaft hole is larger than the aperture of the second rotating shaft hole.

[0017] In this preferred embodiment, the first gasket is used to limit the position of the first eccentric wheel, the first gasket is used to form an oil chamber between the first eccentric wheel and the first mounting seat, and the gap between the first gasket and the rotating shaft is used for the circulation of lubricating oil.

[0018] Preferably, a second eccentric wheel mounting groove is provided on a side of the second mounting seat facing the first mounting seat, a second eccentric wheel is provided in the second eccentric wheel mounting groove, a fourth rotating shaft hole is provided on the second eccentric wheel, the aperture of the fourth rotating shaft hole is smaller than the aperture of the first rotating shaft hole, and the rotating shaft is rotatably fitted in the fourth rotating shaft hole.

[0019] Preferably, a second gasket is provided on a side of the second mounting seat facing the first mounting seat, the second gasket is fitted on the upper surface of the second eccentric wheel, and a fifth rotating shaft hole is provided on the second gasket, the aperture of the fifth rotating shaft hole is larger than the aperture of the second rotating shaft hole.

[0020] In this preferred embodiment, the second gasket is used to form an oil chamber between the second mounting seat and the second eccentric wheel to facilitate the flow of lubricating oil.

[0021] Furthermore, an eccentric shaft is provided at the lower end of the rotating shaft to facilitate the flow of lubricating oil at the lower end of the rotating shaft.

[0022] Preferably, a circular groove is provided on the lower surface of the first mounting seat, and a cylindrical protrusion rotatably matched with the circular groove is provided on the upper surface of the second mounting seat, and the axes of the circular groove and the cylindrical protrusion coincide with the axis of the rotating shaft.

[0023] The technical effect of this preferred embodiment is that it is easy to align the first mounting seat with the second mounting seat. During installation, the first mounting seat and the second mounting seat can be aligned without spending a long time, thereby improving assembly efficiency.

[0024] Preferably, the first mounting seat and the second mounting seat are provided with a guide channel communicating with the first through hole.

[0025] The preferred technical effect is that the first mounting seat and the second mounting seat can be respectively provided with a plurality of transverse holes or vertical holes to form a guide channel, which is mainly used to guide the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0027] Figure 1 is a schematic diagram of the structure of a lubricating mechanism body of a scroll compressor lubricating mechanism proposed in this embodiment and its positional relationship with a housing;

[0028] Figure 2 It is a schematic diagram of the local enlarged structure at A in the figure;

[0029] Figure 3 It is a schematic diagram of the decomposition of the lubrication mechanism body in this embodiment.

[0030] The reference numerals in the accompanying drawings are as follows:

[0031] 11-lubricating mechanism body; 12-rotating shaft; 13-mounting hole; 14-guide tube; 15-first through hole; 16-diverter; 17-guide hole; 18-first mounting seat; 19-first rotating shaft hole; 20-second mounting seat; 21-first groove; 22-first eccentric wheel; 23-second rotating shaft hole; 24-first gasket; 25-third rotating shaft hole; 26-second eccentric wheel mounting groove; 27-second eccentric wheel; 28-fourth rotating shaft hole; 29-second gasket; 30-fifth rotating shaft hole; 31-circular groove; 32-cylindrical protrusion; 33-throttling device. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] In order to solve the problem of low lubrication efficiency of scroll compressors in the prior art, the present application proposes a scroll compressor lubrication mechanism, such as Figures 1 to 3 As shown, including:

[0034] A lubricating mechanism body 11, wherein the lubricating mechanism body 11 is fixed to the bottom of the housing of the scroll compressor, and the lubricating mechanism body 11 is provided with a mounting hole 13 for rotatably mounting a rotating shaft 12 of the scroll compressor, and the lubricating mechanism body 11 is provided with a plurality of lubricating oil flow channels;

[0035] The guide pipe 14 is located in the shell, and the oil inlet end of the guide pipe 14 is connected to the lubricating oil flow channel. The oil outlet end of the guide pipe 14 extends upward to lubricate the parts in the shell, and the end of the lubricating oil flow channel away from the guide pipe 14 is connected to an oil supply unit.

[0036] This technical solution is mainly applicable to vertical scroll compressors. Its working principle is that the lubricating oil in the oil supply unit flows into the guide pipe 14 through the lubricating oil flow channel of the lubricating mechanism body 11, and then lubricates the parts in the shell from top to bottom. Under the action of gravity, the lubricating oil finally drips back into the oil supply unit. The oil supply unit is not shown in the attached figure.

[0037] The rotating shaft 12 may be of a hollow structure, and the rotating shaft 12 may be provided with transverse through holes in a radial direction, so as to facilitate the lubricating oil to be transported to various components along the rotating shaft 12 .

[0038] Furthermore, a throttling device 33 is installed at the oil outlet end of the flow guide pipe 14 .

[0039] As an embodiment of the present application, the lubrication mechanism body 11 includes a diverter 16 , in which a first through hole 15 communicating with the guide pipe 14 is provided, and a guide hole 17 for rotatably mounting the rotating shaft 12 is provided on the diverter 16 .

[0040] As an embodiment of the present application, the lubrication mechanism body 11 further includes:

[0041] A first mounting seat 18, wherein the first mounting seat 18 is disposed on a lower surface of the diverter 16, and a first shaft hole 19 for accommodating the shaft 12 is provided on the first mounting seat 18;

[0042] The second mounting seat 20 is disposed on the lower surface of the first mounting seat 18 , and the rotating shaft 12 is rotatably mounted in the second mounting seat 20 .

[0043] As an embodiment of the present application, a first groove 21 is provided on a side of the first mounting seat 18 facing the diverter 16, a first eccentric wheel 22 is provided in the first groove 21, a second rotating shaft hole 23 is provided on the first eccentric wheel 22, the aperture of the second rotating shaft hole 23 is smaller than the aperture of the first rotating shaft hole 19, and the rotating shaft 12 is rotatably fitted in the second rotating shaft hole 23.

[0044] The technical effect of this technical solution is: the gap between the first shaft hole 19 and the shaft 12 is used for the flow of lubricating oil, the first eccentric wheel 22 rotates with the shaft 12, and an oil chamber for the flow of lubricating oil is formed between the first eccentric wheel 22 and the first mounting seat 18, thereby improving the efficiency of the lubricating oil circulation.

[0045] As an embodiment of the present application, a first gasket 24 is provided on the first groove 21, and the first gasket 24 is fitted on the upper surface of the first eccentric wheel 22, and a third rotating shaft hole 25 is provided on the first gasket 24, and the aperture of the third rotating shaft hole 25 is larger than the aperture of the second rotating shaft hole 23.

[0046] In the present technical solution, the first gasket 24 is used to limit the first eccentric wheel 22, and the first gasket is used to form an oil cavity between the first eccentric wheel 22 and the first mounting seat 18, and the gap between the first gasket 24 and the rotating shaft 12 is used for the circulation of lubricating oil.

[0047] As an embodiment of the present application, a second eccentric wheel mounting groove 26 is provided on a side of the second mounting seat 20 facing the first mounting seat 18, a second eccentric wheel 27 is provided in the second eccentric wheel mounting groove 26, a fourth rotating shaft hole 28 is provided on the second eccentric wheel 27, the aperture of the fourth rotating shaft hole 28 is smaller than the aperture of the first rotating shaft hole 19, and the rotating shaft 12 is rotatably fitted in the fourth rotating shaft hole 28.

[0048] As an embodiment of the present application, a second gasket 29 is provided on the side of the second mounting seat 20 facing the first mounting seat 18, the second gasket 29 is fitted on the upper surface of the second eccentric wheel 27, and a fifth rotating shaft hole 30 is provided on the second gasket 29, and the aperture of the fifth rotating shaft hole 30 is larger than the aperture of the second rotating shaft hole 23.

[0049] In the present technical solution, the second gasket 29 is used to form an oil cavity between the second mounting seat 20 and the second eccentric wheel 26 to facilitate the flow of lubricating oil.

[0050] Furthermore, an eccentric shaft is provided at the lower end of the rotating shaft 12 to facilitate the flow of lubricating oil at the lower end of the rotating shaft.

[0051] As an embodiment of the present application, a circular groove 31 is provided on the lower surface of the first mounting seat 18, and a cylindrical protrusion 32 rotatably engaged with the circular groove 31 is provided on the upper surface of the second mounting seat 20, and the axes of the circular groove 31 and the cylindrical protrusion 32 coincide with the axis of the rotating shaft 12.

[0052] The technical effect of the technical solution is that it is easy to align the first mounting seat 18 and the second mounting seat 20. During installation, it does not take a long time to align the first mounting seat 18 and the second mounting seat 20, thereby improving assembly efficiency.

[0053] As an implementation manner of the present application, a flow guide channel communicating with the first through hole 15 is provided on the first mounting seat 18 and the second mounting seat 20 .

[0054] The technical effect of the present technical solution is that the first mounting seat 18 and the second mounting seat 20 can be respectively provided with a plurality of transverse holes or vertical holes to form a guide channel, which is mainly used to guide the lubricating oil.

[0055] In addition, the lubricating oil flow channel in the lubrication mechanism body 11 of the present application is not limited to the technical solutions disclosed above. Technical personnel in this field can make specific arrangements for the lubricating oil flow channel of the lubrication mechanism body 11 according to actual needs, such as correspondingly arranging transverse holes and vertical holes or inclined holes. The above corresponding modifications are all within the protection scope of the present application.

[0056] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A scroll compressor lubrication mechanism, characterized in that: include: A lubricating mechanism body (11), the lubricating mechanism body (11) being fixed to the bottom of a housing of the scroll compressor, the lubricating mechanism body (11) being provided with a mounting hole (13) for rotatably mounting a rotating shaft (12) of the scroll compressor, and the lubricating mechanism body (11) being provided with a plurality of lubricating oil flow channels extending therethrough; a flow guide pipe (14), the flow guide pipe (14) being located in the housing, and the oil inlet end of the flow guide pipe (14) being connected to the lubricating oil flow channel, the oil outlet end of the flow guide pipe (14) extending upwards and lubricating the components in the housing, and the end of the lubricating oil flow channel away from the flow guide pipe (14) being connected to an oil supply unit; The lubrication mechanism body (11) comprises a flow divider (16), the flow divider (16) is provided with a first through hole (15) communicating with the flow guide pipe (14), and the flow divider (16) is provided with a guide hole (17) for rotatably mounting the rotating shaft (12); The lubrication mechanism body (11) further comprises a first mounting seat (18), the first mounting seat (18) being arranged in close contact with the lower surface of the flow divider (16), and the first mounting seat (18) being provided with a first rotating shaft hole (19) for accommodating the rotating shaft (12); The lubrication mechanism body (11) further comprises a second mounting seat (20), the second mounting seat (20) being arranged in close contact with the lower surface of the first mounting seat (18), and the rotating shaft (12) being rotatably mounted in the second mounting seat (20); A first groove (21) is provided on a side of the first mounting seat (18) facing the diverter (16); a first eccentric wheel (22) is provided in the first groove (21); a second rotating shaft hole (23) is provided on the first eccentric wheel (22); the aperture of the second rotating shaft hole (23) is smaller than the aperture of the first rotating shaft hole (19); and the rotating shaft (12) is fixed in the second rotating shaft hole (23); A second eccentric wheel mounting groove (26) is provided on a side of the second mounting seat (20) facing the first mounting seat (18); a second eccentric wheel (27) is provided in the second eccentric wheel mounting groove (26); a fourth rotating shaft hole (28) is provided on the second eccentric wheel (27); the aperture of the fourth rotating shaft hole (28) is smaller than the aperture of the first rotating shaft hole (19); and the rotating shaft (12) is rotatably fitted in the fourth rotating shaft hole (28).

2. The scroll compressor lubrication mechanism according to claim 1, characterized in that: A throttling device (33) is installed at the oil outlet end of the flow guide pipe (14).

3. The scroll compressor lubrication mechanism according to claim 1, characterized in that: A first gasket (24) is provided on the first groove (21), the first gasket (24) is arranged in close contact with the upper surface of the first eccentric wheel (22), and a third rotating shaft hole (25) is provided on the first gasket (24), the aperture of the third rotating shaft hole (25) being larger than the aperture of the second rotating shaft hole (23).

4. The scroll compressor lubrication mechanism according to claim 1, characterized in that: A second gasket (29) is provided on a side of the second mounting seat (20) facing the first mounting seat (18); the second gasket (29) is fitted on the upper surface of the second eccentric wheel (27); and a fifth rotating shaft hole (30) is provided on the second gasket (29); the aperture of the fifth rotating shaft hole (30) is larger than the aperture of the second rotating shaft hole (23).

5. The scroll compressor lubrication mechanism according to claim 1, characterized in that: A circular groove (31) is provided on the lower surface of the first mounting seat (18), and a cylindrical protrusion (32) rotatably engaged with the circular groove (31) is provided on the upper surface of the second mounting seat (20), wherein the axes of the circular groove (31) and the cylindrical protrusion (32) coincide with the axis of the rotating shaft (12).

6. The scroll compressor lubrication mechanism according to claim 1, characterized in that: The first mounting seat (18) and the second mounting seat (20) are provided with a flow guide channel which is in communication with the first through hole (15).

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