Lubricating oil supply device and rotating machine including the same

Abstract

The present disclosure provides a lubricating oil supply device and a rotating machine, the lubricating oil supply device comprising: an upper plate; a first angle plate and a second angle plate, the first angle plate and the second angle plate extending downward from the upper plate; and a gasket, the gasket being arranged below the first angle plate and the second angle plate, and the gasket defining a first hole allowing the lubricating oil to flow in; characterized in that the lubricating oil supply device further comprises a throttle, the throttle being connected to the upper plate above the upper plate and defining a second hole allowing the lubricating oil to flow out, the throttle being configured to limit the flow of the lubricating oil flowing through the second hole. The lubricating oil supply device according to the present disclosure can prevent excessive oil supply when the rotating shaft rotates at a high speed while ensuring the lubrication demand when the rotating shaft rotates at a low speed, thereby improving the performance of the rotating machine.

Description

Technical Field

[0001] The present disclosure relates to a lubricating oil supply device and a rotating machine including the lubricating oil supply device. Background Art

[0002] The contents in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] The compressor generally includes a housing, a compression mechanism contained in the housing, a rotating shaft for driving the compression mechanism, etc. Generally, the compressor needs to use a lubricant (hereinafter referred to as lubricating oil or oil) to achieve lubrication, sealing and cooling of the compressor components (such as bearings, compression mechanism, etc.). When the compressor is running, the rotating shaft rotates under the action of the motor to drive the compression mechanism to compress the working fluid. At the same time, the lubricating oil is supplied to various components of the compressor through the lubricating oil supply channel of the rotating shaft.

[0004] With the development of frequency conversion technology, the speed of the compressor can be changed according to the actual situation. However, when the rotating shaft of the compressor is rotating at a high speed, the oil supply may be too high. Excessive lubricating oil will not only cause waste of lubricating oil but also may cause the efficiency of the heat exchanger to decrease, thus affecting the operation and performance of the compressor system. On the other hand, when the rotating shaft of the compressor is rotating at a low speed, the components may be overheated and worn due to insufficient lubricating oil supply, thereby reducing the performance of the compressor.

[0005] Therefore, there is still a need to provide a lubricating oil supply device that can solve the above problems. Summary of the invention

[0006] One object of one or more embodiments of the present disclosure is to provide a lubricating oil supply device that can both ensure the lubrication requirements of the rotating shaft when it rotates at a low speed and prevent excessive oil supply when the rotating shaft rotates at a high speed, thereby improving the performance of the rotating machinery.

[0007] According to one aspect of the present disclosure, a lubricating oil supply device is provided, comprising: an upper plate; a first angle plate and a second angle plate, the first angle plate and the second angle plate extending downward from the upper plate; and a gasket, the gasket being arranged below the first angle plate and the second angle plate, and the gasket defining a first hole allowing lubricating oil to flow in; characterized in that the lubricating oil supply device also includes a throttling member, the throttling member is connected to the upper plate above the upper plate and defines a second hole allowing lubricating oil to flow out, the throttling member being configured to limit the flow rate of lubricating oil flowing through the second hole.

[0008] According to one aspect of the present disclosure, the throttle member includes a throttle plate having an annular body and a connecting portion connecting the throttle plate to the upper plate, and the throttle plate defines the second hole.

[0009] According to one aspect of the present disclosure, the throttle member includes first and second throttle plates facing each other and first and second connecting portions connecting the first and second throttle plates to the upper plate, respectively, and the first and second throttle plates define the second hole therebetween.

[0010] According to one aspect of the present disclosure, positions of the first throttle plate and the second throttle plate in the longitudinal direction of the lubricating oil supply device are staggered with each other.

[0011] According to one aspect of the present disclosure, the first angle plate and the second angle plate extend from the upper plate in different directions so that the first angle plate and the second angle plate form a forked structure, and at least one of the first angle plate and the second angle plate is connected to the gasket at an end opposite to the end extending from the upper plate.

[0012] According to another aspect of the present disclosure, a rotating machine is provided, which includes a rotating shaft having a lubricating oil supply channel and a lubricating oil supply device arranged in the lubricating oil supply channel, the lubricating oil supply channel is arranged along the axial direction of the rotating shaft and has a first axial end and a second axial end, the lubricating oil flows in a direction from the first axial end toward the second axial end, and the lubricating oil supply device includes: an upper plate; a first angle plate and a second angle plate, the first angle plate and the second angle plate extending from the upper plate toward the first axial end; a washer, the washer is arranged closer to the first axial end than the first angle plate and the second angle plate, and the washer defines a first hole allowing lubricating oil to flow in, characterized in that the lubricating oil supply device also includes a throttling member, the throttling member is arranged closer to the second axial end than the upper plate, the throttling member covers at least a portion of the lubricating oil supply channel and defines a second hole allowing lubricating oil to flow out.

[0013] According to another aspect of the present disclosure, the throttle member is disposed separately from the upper plate, and the throttle member is fixed inside the lubricating oil supply passage.

[0014] According to another aspect of the present disclosure, the throttling member is composed of an annular body, or the throttling member includes a third angle plate and a fourth angle plate extending from the base toward the second axial end and a throttling plate defining the second hole, the throttling plate is arranged to be closer to the second axial end than the third angle plate and the fourth angle plate, and the third angle plate and the fourth angle plate extend in different directions to form a forked structure.

[0015] According to another aspect of the present disclosure, an area of ​​the second hole is 0.3 to 0.7 times an area of ​​the lubricating oil supply passage.

[0016] According to another aspect of the present disclosure, an outer peripheral wall of the throttle member contacts an inner wall of the lubricating oil supply passage.

[0017] According to another aspect of the present disclosure, the first angle plate and the second angle plate extend from the upper plate in different directions so that the first angle plate and the second angle plate form a forked structure, and at least one of the first angle plate and the second angle plate is connected to the gasket at an end opposite to the end extending from the upper plate.

[0018] According to another aspect of the present disclosure, the lubricating oil supply device is disposed in the lubricating oil supply passage close to the first axial end.

[0019] According to another aspect of the present disclosure, the rotary machine is a variable frequency scroll compressor and a rotating shaft of the scroll compressor is used to drive a compression mechanism of the scroll compressor.

[0020] The lubricating oil supply device according to the present disclosure can ensure the lubrication requirement of the rotating shaft when it rotates at a low speed while preventing excessive oil supply when the rotating shaft rotates at a high speed, thereby improving the performance of the rotating machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The features and advantages of one or more embodiments of the present disclosure will become more easily understood through the following description with reference to the accompanying drawings. The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure in any way. The drawings are not drawn to scale, and some features may be enlarged or reduced to show details of specific components. In the drawings:

[0022] Figure 1 is a cross-sectional view schematically showing a scroll compressor to which a lubricating oil supply device according to a comparative example is applied;

[0023] Figure 2 for Figure 1 A partial enlarged cross-sectional view of the bottom structure;

[0024] Figure 3a and Figure 3b schematically illustrates a lubricating oil supply device according to a comparative example;

[0025] Figure 4 A partial cross-sectional view schematically showing a scroll compressor to which a lubricating oil supply device according to a first embodiment of the present disclosure is applied;

[0026] Figure 5a-5c Schematically shows a lubricating oil supply device according to a first embodiment of the present disclosure;

[0027] Figure 6 The oil supply amount variation curves of the scroll compressor to which the lubricating oil supply device according to the comparative example is applied and the scroll compressor to which the lubricating oil supply device according to the first embodiment of the present disclosure is applied under different rotating shaft speed conditions are shown.

[0028] Figure 7 A partial cross-sectional view schematically showing a scroll compressor to which a lubricating oil supply device according to a second embodiment of the present disclosure is applied;

[0029] Figure 8a-8c schematically shows a lubricating oil supply device according to a second embodiment of the present disclosure;

[0030] Fig. 9 A partial cross-sectional view schematically showing a scroll compressor to which a lubricating oil supply device according to a third embodiment of the present disclosure is applied; and

[0031] Fig.10 The present invention is a partial cross-sectional view schematically showing a scroll compressor to which a lubricating oil supply device according to a fourth embodiment of the present disclosure is applied. DETAILED DESCRIPTION

[0032] The following description of the various embodiments of the present disclosure is merely exemplary and is by no means a limitation of the present disclosure and its application or usage. The same reference numerals are used to represent the same components in the various drawings, so the construction of the same components will not be described repeatedly.

[0033] First, refer to Figure 1 Describe the general construction of a scroll compressor. Figure 1 As shown, the scroll compressor 1 includes a housing 10. More specifically, the housing 10 may be composed of a substantially cylindrical body 12, a top cover 14 disposed at one end of the body 12, and a bottom cover 16 disposed at the other end of the body 12. A partition 20 is disposed between the top cover 14 and the body 12, and the partition 20 divides the internal space of the housing 10 into a high-pressure side and a low-pressure side, wherein the space between the partition 20 and the top cover 14 forms the high-pressure side, and the space defined by the partition 20, the body 12, and the bottom cover 16 forms the low-pressure side. A lubricating oil pool is disposed at the lower portion of the housing 10.

[0034] The housing 10 contains a compression mechanism 30 and a driving mechanism 40. Figure 1 In the example shown, the compression mechanism 30 includes a fixed scroll component 32 and a movable scroll component 34 that mesh with each other. The drive mechanism 40 includes a motor 50 and a rotating shaft 60. The motor 50 includes a stator and a rotor. The stator is fixedly connected to the housing 10. The rotor is fixedly connected to the rotating shaft 60 and rotates in the stator. When the compressor is running, the rotating shaft 60 rotates to drive the compression mechanism 30 to compress the working fluid. At the same time, lubricating oil is supplied to the fixed scroll component 32, the movable scroll component 34, and compressor components such as bearings through the lubricating oil supply channels 62 and 64 inside the rotating shaft 60. The first axial end ( Figure 1 The lower end in the middle) is arranged in the lubricating oil pool, and the second axial end ( Figure 1 The lubricating oil supply passage 62 is concentric with the rotating shaft 60 and the second lubricating oil supply passage 64 is radially offset relative to the first lubricating oil supply passage.

[0035] The rotating shaft 60 is supported at the upper end by a main bearing seat and at the lower end by a lower bearing seat 70. The main bearing seat and the lower bearing seat 70 are fixedly connected to the housing 10 by appropriate means. The eccentric crank pin 72 of the rotating shaft 60 is inserted into the movable scroll component 34 to rotationally drive the movable scroll component 34.

[0036] Reference Figure 2 A lubricating oil supply device 80 may be provided in the first lubricating oil supply passage 62. Figure 3a and 3b Specifically, the lubricating oil supply device 80 includes an upper plate 82, a first angle plate 84, a second angle plate 86, and a gasket 88. The first angle plate 84 and the second angle plate 86 extend downward from the upper plate 82 and fork in different directions, so that the first angle plate 84 and the second angle plate 86 form a relative fork-shaped structure. The gasket 88 is disposed below the first angle plate 84 and the second angle plate 86, and the gasket 88 is formed into a generally annular body having a through hole 89 in the center. The first angle plate 84 and the second angle plate 86 may be disposed at the end opposite to the end extending from the upper plate 82 (i.e., Figure 2 , connected to the gasket 88 at the lower end thereof.

[0037] like Figure 2As shown in FIG. 1 , when the compressor is running, the lubricating oil at the lower part of the housing 10 enters the first lubricating oil supply channel 62 inside the rotating shaft 60 through the through hole 89 of the gasket 88. Since the lubricating oil supply device 80 rotates together with the rotating shaft 60, the lubricating oil flows radially from the center of the gasket 88 to the periphery of the gasket 88 under the action of centrifugal force, and thus the lubricating oil is pumped upward along the first angle plate 84 and the second angle plate 86. Subsequently, the lubricating oil continues to be pumped upward through the upper plate 82, thereby flowing to the second lubricating oil supply channel 64 and reaching the eccentric crank pin 72 (as shown in FIG. 1 ). Figure 1 After being discharged from the second end, the lubricating oil flows downward under the action of gravity and lubricates and cools the moving parts driven by various moving parts. The lubricating oil supply device 80 can effectively throw the lubricating oil upward from the lubricating oil pool at the bottom to the moving parts of the compressor, thereby increasing the oil supply.

[0038] However, as the rotation speed of the rotating shaft 60 increases, the amount of lubricating oil pumped into the interior of the rotating shaft 60 and thus pumped into the moving parts increases. Therefore, in the case where the rotating shaft 60 rotates at a high speed, the amount of oil supplied to the compressor may be too high, which not only causes a waste of lubricating oil but also may cause an excessively high oil circulation rate, which is undesirable.

[0039] In order to solve the above problems, the inventors have conceived of an improved lubricating oil supply device, which utilizes a throttling device to adjust the amount of lubricating oil supplied through the lubrication supply channel when the rotating shaft rotates, so that it can ensure that sufficient lubricating oil is supplied when the rotating shaft rotates at a low speed, and solve the problem of excessive oil supply when the rotating shaft rotates at a high speed, thereby achieving the purpose of improving the performance of the compressor.

[0040] The following is combined Figures 4 to 10 The lubricating oil supply device according to the present disclosure is described in further detail.

[0041] Figure 4 The diagram is a partial cross-sectional view schematically showing a scroll compressor to which a lubricating oil supply device according to a first embodiment of the present disclosure is applied. Figure 5a-5c The lubricating oil supply device according to the first embodiment of the present disclosure is specifically shown. Figure 5a-5c As shown, the lubricating oil supply device 100 according to the first embodiment of the present disclosure is Figure 1The lubricating oil supply device 80 according to the comparative example shown similarly includes an upper plate 82, a first angle plate 84, a second angle plate 86 and a gasket 88, and the difference is that the lubricating oil supply device 100 also includes a throttle member arranged above the upper plate 82. The throttle member includes a throttle plate 110 and a connecting portion 120. The throttle plate 110 at least partially covers the first lubricating oil supply channel 62 to limit the flow of the lubricating oil, and the throttle plate 110 defines a through hole 112 at its center that allows the lubricating oil to flow out. The connecting portion 120 connects the throttle plate 110 to the upper plate 82. Preferably, the area of ​​the through hole 112 can be 0.3 to 0.7 times the area of ​​the first lubricating oil supply channel 62, and the outer wall of the throttle plate 110 can be arranged to contact the inner wall of the first lubricating oil supply channel 62, so as to achieve a better throttling effect.

[0042] like Figure 4 As exemplarily shown in FIG. 1 , the throttle plate 110 may extend in a direction perpendicular to the flow direction of the lubricating oil.

[0043] When the rotating shaft 60 of the compressor is running at a high speed, the lubricating oil at the lower part of the housing 10 flows through the through hole 89 of the gasket 88, and then is pumped upward to the throttle plate 110 along the first angle plate 84, the second angle plate 86 and the upper plate 82. At this time, the lubricating oil supplied upward is subject to the local resistance of the throttle plate 110 covering the first lubricating oil supply channel 62, so that the upward pumping force is reduced and the amount of lubricating oil flowing through the throttle plate 110 is reduced, thereby preventing excessive lubricating oil from being supplied to the second lubricating oil supply channel 64 and reaching the second end adjacent to the eccentric crank pin. On the other hand, when the rotating shaft 60 of the compressor is running at a low speed, since the rotation speed is low at this time, the force pumped upward through the through hole 89 of the gasket 88 is small, so the lubricating oil blocked by the throttle plate 110 is relatively small. That is, in the case of low-speed rotation, the throttling effect of the throttle plate 110 is relatively small, so it can be ensured that sufficient lubricating oil is supplied to the moving parts of the compressor.

[0044] Refer to the following Figure 5c, the preparation method of the lubricating oil supply device 100 is specifically described. First, a flat integral component is formed by stamping a metal sheet, and the flat integral component includes a throttle plate 110, an upper plate 82, a first angle plate 84, a second angle plate 86, and a gasket 88. Next, the first angle plate 84 is bent in a first direction along the fold line 92 of the upper plate 82, and the second angle plate 86 is bent in an opposite second direction along the fold line 94 of the upper plate 82, thereby forming a bifurcated structure. The gasket 88 is then bent into a substantially horizontal plane. Finally, the throttle plate 110 is bent to form a certain angle with the vertical direction (i.e., the flow direction of the lubricating oil) to cover the first lubricating oil supply channel 62. The lubricating oil supply device 100 according to the first embodiment of the present disclosure can be made of a single piece of thin metal plate through a stamping process and a folding process, thereby simplifying the manufacturing process and saving material consumption.

[0045] Figure 6 Curves A and B of FIG. 1 respectively show the changes in the oil supply amount of a scroll compressor applied with the lubricating oil supply device 80 according to the comparative example and a scroll compressor applied with the lubricating oil supply device 100 according to the first embodiment of the present disclosure under different rotating shaft speeds. Figure 6 As shown, when the rotating shaft of the compressor is working at a low speed, the oil supply amount of the scroll compressor applied with the lubricating oil supply device according to the comparative example and the scroll compressor applied with the lubricating oil supply device according to the first embodiment of the present disclosure is basically the same. When the rotation speed of the rotating shaft of the compressor increases, the oil supply amount of the scroll compressor applied with the lubricating oil supply device according to the comparative example increases significantly with the increase of the rotation speed and can be as high as about 60g / s, while the oil supply amount of the scroll compressor applied with the lubricating oil supply device according to the first embodiment of the present disclosure increases at a relatively slow rate after reaching about 25g / s and the maximum oil supply amount is about 30g / s. It can be seen from this that the lubricating oil supply device according to the present disclosure can ensure the supply of sufficient lubricating oil at a low rotation speed of the rotating shaft, and significantly reduce the oil supply at a high rotation speed, thereby avoiding excessive lubricating oil from being supplied to the compressor components, thereby improving the performance of the compressor.

[0046] Reference Figure 7-8c, a lubricating oil supply device 200 according to a second embodiment of the present disclosure is provided. The lubricating oil supply device 200 includes a throttle plate, an upper plate 82, a first angle plate 84, a second angle plate 86, and a gasket 88 similar to the lubricating oil supply device 100 according to the first embodiment of the present disclosure, and the difference is that a separated first throttle plate 210 and a second throttle plate 212 are used in the lubricating oil supply device 200 to replace the integrated throttle plate 110, and the first throttle plate 210 and the second throttle plate 212 are connected to the upper plate 82 through a first connecting portion 220 and a second connecting portion 222, respectively. A through hole 214 is formed between the first throttle plate 210 and the second throttle plate 212 to allow the lubricating oil to flow out.

[0047] Reference Figure 8c , the method for preparing the lubricating oil supply device 200 is specifically described. Similar to the method for preparing the lubricating oil supply device 100 according to the first embodiment of the present disclosure, a flat integral component is first formed by stamping a metal sheet, and the flat integral component includes a first throttle plate 210 and a second throttle plate 212, an upper plate 82, a first angle plate 84 and a second angle plate 86, and a gasket 88, wherein the first throttle plate 210 and the second throttle plate 212 are respectively connected with a first connection portion 220 and a second connection portion 222. Next, the first angle plate 84 is bent in a first direction along the fold line 92 of the upper plate 82, and the second angle plate 86 is bent in a second direction opposite to the first direction along the fold line 94 of the upper plate 82, thereby forming a bifurcated structure. Then, the gasket 88 is bent into a substantially horizontal plane. Thereafter, the first connection portion 220 is bent in a second direction along the fold line 96 of the upper plate 82, and the second connection portion 222 is bent in the first direction along the fold line 98 of the upper plate 82. Finally, the first throttle plate 210 is bent in the first direction along the fold line 224 of the first connection portion 220, and the second throttle plate 212 is bent in the second direction along the fold line 226 of the second connection portion 222, so as to form a through hole 214 between the first throttle plate 210 and the second throttle plate 212. Figure 8a-8c As shown, the first throttle plate 210 and the second throttle plate 212 are staggered in the axial direction, so that the entire lubricating oil supply device can be made of a single thin metal plate. Since the lubricating oil supply device 100 according to the second embodiment of the present disclosure can be made of a single thin metal plate through a stamping process and a folding process, the manufacturing process can be simplified and material consumption can be saved. It should be noted here that although Figure 8a-8c The first throttle plate 210 and the second throttle plate 212 are shown to form square holes, but the present disclosure is not limited thereto, and circular holes, rectangular holes, or any other suitable shapes may also be formed.

[0048] Fig. 9A partial cross-sectional view of a compressor to which a lubricating oil supply device 300 according to a third embodiment of the present disclosure is applied is shown. The lubricating oil supply device 300 according to the third embodiment of the present disclosure includes a throttle plate 110, an upper plate 82, a first angle plate 84, a second angle plate 86, and a gasket 88 similar to the lubricating oil supply device 100 according to the first embodiment of the present disclosure, but the difference is that the throttle plate 110 is arranged separately from the upper plate 82 and fixed in the first lubricating oil supply passage 62. For example, the throttle plate 110 can be fixed in the first lubricating oil supply passage 62 by interference fit.

[0049] Fig.10 FIG. 4 is a partial cross-sectional view of a compressor to which the lubricating oil supply device 400 according to the fourth embodiment of the present disclosure is applied. Fig.10 As shown, the lubricating oil supply device 400 according to the fourth embodiment of the present disclosure includes two lubricating oil supply devices 80 arranged in sequence up and down. Fig.10 As shown, the upper lubricating oil supply device is inverted, specifically, the upper plate of the upper lubricating oil supply device 80 is arranged on the lower side and is therefore also referred to as a base 92, and the first angle plate and the second angle plate of the upper lubricating oil supply device 80 extend upward from the base, which are referred to as the third angle plate 94 and the fourth angle plate 96, and a gasket 98 is arranged on the upper side of the third angle plate 94 and the fourth angle plate 96. The third angle plate 94 and the fourth angle plate 96 can extend in different directions to form a bifurcated structure, and the gasket 98 can define a hole 99 that allows the lubricating oil to flow through. In the lubricating oil supply device 400 according to the fourth embodiment of the present disclosure, when the lubricating oil flows to the gasket 98 in the first lubricating oil supply channel 62, it is blocked by the gasket 98, and the force of pumping the lubricating oil upward is reduced, so that the upper lubricating oil supply device can be used as a throttling mechanism and its gasket 98 can be used as a throttling plate.

[0050] The lubricating oil supply device used in a scroll compressor is described above by way of example, but those skilled in the art should understand that the lubricating oil supply device according to the present disclosure can also be applied to other equipment having a lubricating oil supply channel, and the lubricating oil supply device according to the present disclosure is particularly suitable for various rotating machines having a rotating shaft.

[0051] Although various embodiments of the present disclosure are described in detail herein, it should be understood that the present disclosure is not limited to the specific embodiments described and shown in detail herein, and other modifications and variations can be implemented by those skilled in the art without departing from the essence and scope of the present disclosure. All these modifications and variations fall within the scope of the present disclosure. Moreover, all components described herein can be replaced by other technically equivalent components.

Claims

1. A lubricating oil supply device (100, 200), include: upper board(82); A first angle plate (84) and a second angle plate (86), wherein the first angle plate and the second angle plate extend downward from the upper plate; as well as a gasket (88) disposed below the first angle plate and the second angle plate and defining a first hole (89) for allowing lubricating oil to flow in; The lubricating oil supply device is characterized in that the lubricating oil supply device also includes a throttling member (110, 210), which is connected to the upper plate above the upper plate and defines a second hole (112, 214) allowing the lubricating oil to flow out, and the throttling member is configured to limit the flow rate of the lubricating oil flowing through the second hole.

2. The lubricating oil supply device (100) according to claim 1, in, The throttle member includes a throttle plate (110) having an annular body and a connecting portion (120) connecting the throttle plate to the upper plate, the throttle plate defining the second hole.

3. The lubricating oil supply device (200) according to claim 1, in, The throttle member includes a first throttle plate (210) and a second throttle plate (212) facing each other, and a first connecting portion (220) and a second connecting portion (222) connecting the first throttle plate and the second throttle plate to the upper plate, respectively, and the first throttle plate and the second throttle plate define the second hole (214) therebetween.

4. The lubricating oil supply device (200) according to claim 3, in, The positions of the first throttle plate (210) and the second throttle plate (212) in the longitudinal direction of the lubricating oil supply device are staggered.

5. The lubricating oil supply device (100, 200) according to any one of claims 1 to 4, in, The first angle plate (84) and the second angle plate (86) extend from the upper plate in different directions so that the first angle plate and the second angle plate form a bifurcated structure, and at least one of the first angle plate and the second angle plate is connected to the gasket at an end opposite to the end extending from the upper plate.

6. A rotary machine, comprising a rotary shaft (60) having a lubricating oil supply passage (62, 64) and a lubricating oil supply device (100, 200, 300, 400) arranged in the lubricating oil supply passage, wherein the lubricating oil supply passage is arranged along the axial direction of the rotary shaft and has a first axial end and a second axial end, and the lubricating oil flows in a direction from the first axial end toward the second axial end, The lubricating oil supply device include: upper board(82); a first gusset (84) and a second gusset (86) extending from the upper plate toward the first axial end; a washer (88) disposed closer to the first axial end than the first angle plate and the second angle plate, and defining a first hole (89) for allowing lubricating oil to flow in, The lubricating oil supply device is characterized in that the lubricating oil supply device also includes a throttle member, which is arranged closer to the second axial end than the upper plate, and the throttle member covers at least a portion of the lubricating oil supply channel (62, 64) and defines a second hole (112, 214, 99) allowing the lubricating oil to flow out.

7. The rotary machine according to claim 6, in, The throttle member is arranged separately from the upper plate (82), and the throttle member is fixed inside the lubricating oil supply passage (62, 64).

8. The rotary machine according to claim 7, in, The throttling element is composed of an annular body, or, The throttling member includes a base (92), a third angle plate (94) and a fourth angle plate (96) extending from the base toward the second axial end, and a throttling plate (98) defining the second hole (99), the throttling plate being arranged closer to the second axial end than the third angle plate and the fourth angle plate, and the third angle plate and the fourth angle plate extending in different directions to form a forked structure.

9. The rotary machine according to any one of claims 6 to 8, in, The area of ​​the second hole (112, 214, 99) is 0.3 to 0.7 times the area of ​​the lubricating oil supply passage.

10. The rotary machine according to any one of claims 6 to 8, in, The outer wall of the throttle member contacts the inner wall of the lubricating oil supply passage (62, 64).

11. The rotary machine according to any one of claims 6 to 8, in, The first angle plate (84) and the second angle plate (86) extend from the upper plate in different directions so that the first angle plate and the second angle plate form a bifurcated structure, and at least one of the first angle plate and the second angle plate is connected to the gasket at an end opposite to the end extending from the upper plate.

12. The rotary machine according to any one of claims 6 to 8, in, The lubricating oil supply device is disposed in the lubricating oil supply passage near the first axial end.

13. The rotary machine according to any one of claims 6 to 8, in, The rotary machine is a variable frequency scroll compressor, and the rotating shaft (60) of the scroll compressor is used to drive the compression mechanism (30) of the scroll compressor.

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