Compressor oil supply structure capable of automatically adjusting oil quantity

Abstract

The utility model provides a compressor oil supply structure capable of automatically adjusting oil quantity, which belongs to the technical field of refrigeration air condition compressors and comprises a shell, a lower cover, an oil supply pipe, a cover body, a rivet bolt, a support plate, a guide column body, a return pressure spring, a floating cover plate, a crankshaft and an auxiliary support. The cover body is provided with a supporting plate and a rivet bolt, and the supporting plate is provided with a floating plate, a guide column body and a back pressure spring. By means of the cover body, liquid refrigerants are prevented from being mixed and diluting refrigerant oil in the lower cover oil pool when the compressor is started and stopped, and the oil supply reliability of the compressor is guaranteed; and meanwhile, through the supporting plate and the floating cover plate arranged on the cover body, the oil quantity in an oil pool of the compressor is controlled to prevent the crankshaft from rotating to stir refrigerant oil, so that the power consumption loss is avoided, and the energy efficiency of the whole machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of refrigeration air conditioner compressor, specifically, especially, an oil amount automatic adjusting's compressor oil supply structure. BACKGROUND

[0002] The oil supply mechanism of the conventional refrigeration air conditioner compressor mainly injects the refrigeration oil into the lower cover of the compressor, and lubricates and seals the sliding parts and sealing surfaces of the compressor through the oil pipe and oil pump. Such structure mainly has the following disadvantages: first, when the compressor stops, part of the liquid refrigerant will migrate back to the compressor, i.e., flow into the lower cover. Too much refrigerant will dissolve and dilute the refrigeration oil. When the compressor starts again, the diluted refrigeration oil will be discharged from the compressor with the refrigerant, which will affect the lubrication and cooling effect of the compressor and exacerbate the wear of the sliding parts of the mechanical components, eventually leading to the failure of the mechanical components. Second, when the compressor is running stably, the refrigeration oil in the oil pool of the lower cover should not be too much. The rotating crankshaft and oil supply pipe will agitate the oil pool, causing the oil level to be unstable, and the compressor power increases, affecting the efficiency of the whole machine. In summary, there is an urgent need for an automatic adjusting mechanism that can reduce the impact of liquid refrigerant on the refrigeration oil in the oil pool, without too much oil in the compressor, and can control the oil supply of the compressor. SUMMARY

[0003] According to the above technical problems, an oil amount automatic adjusting's compressor oil supply structure is provided. The utility model combines each sub-component into a whole assembly mechanism. The internal structure of the compressor needs sufficient refrigeration oil for lubrication when running. The utility model makes the oil amount controllable when the compressor is running and supplies oil as needed.

[0004] The technical means adopted by the utility model are as follows:

[0005] An oil amount automatic adjusting's compressor oil supply structure, comprising: a shell, a lower cover, an oil supply pipe, a cover body, a rivet, a support plate, a guide column, a back pressure spring, a floating cover plate, a crankshaft, and a secondary support:

[0006] The floating cover plate is connected by the back pressure spring and the compression spring. The back pressure spring is installed on the guide column. The back pressure spring is installed on the guide column. The guide column and the guide column are installed on the support plate.

[0007] The support plate is connected and fixed with the cover body by the rivet and the rivet.

[0008] The cover body is installed on the compressor shell and the lower cover. The cover body is attached to the secondary support. The cover body and the crankshaft are gap fitted.

[0009] Further, the cover body comprises a cover body upper end plate oil return port, a cover body front end plate, a cover body lower end plate, a cover body lower end plate assembly hole, a cover body lower end plate oil supply hole, a cover body lower end plate assembly hole, a cover body rear end plate and a cover body upper end plate.

[0010] The diameter of the cover body lower end plate oil supply hole is D1, the inner diameter of the compressor oil supply pipe is D, the distance from the position of the cover body lower end plate oil supply hole to the bottom surface of the lower cover is L2, and the distance from the lower end surface of the oil supply pipe to the bottom surface of the lower cover is L1, which ensures reliable oil supply and needs to meet:

[0011] D1≥N×D, 2L1≤L2≤6L1, where N≥1;

[0012] When the gravity of the refrigerant oil in the cover body is greater than the sum of the elastic force provided by the back pressure spring and the liquid buoyancy of the refrigerant oil in the lower cover oil pool during stable operation of the compressor, the floating cover plate can be opened, and the refrigerant oil in the cover body flows into the lower cover oil pool, ensuring the supply of refrigerant oil.

[0013] When the gravity of the refrigerant oil in the cover body is less than the sum of the elastic force provided by the back pressure spring and the liquid buoyancy of the refrigerant oil in the lower cover oil pool, the floating cover plate is closed, and the refrigerant oil in the cover body no longer flows into the lower cover oil pool, preventing excessive refrigerant oil in the lower cover oil pool and causing oil stirring.

[0014] Further, the rivet is an integrally formed component, and the rivet is a solid or hollow columnar structure comprising a rivet upper end portion and a rivet lower end portion.

[0015] Further, the support plate comprises a support plate upper end plate and a support plate lower end plate.

[0016] The support plate upper end plate is provided with a support plate upper end plate assembly hole and a support plate upper end plate oil supply hole, and the support plate lower end plate is provided with a support plate lower end plate assembly hole, a support plate lower end plate assembly hole, a support plate lower end plate oil supply hole, a support plate lower end plate assembly hole, a support plate lower end plate assembly hole, and the support plate can be an integrally formed component or a combined component. The diameter of the support plate upper end plate oil supply hole is D2, and the diameter of the support plate lower end plate oil supply hole is D3. Considering the installation convenience and the oil supply effect of the floating cover plate, it should be D2≥D3.

[0017] Further, the guide column body comprises a guide column body upper end portion and a guide column body lower end portion, and the guide column body can be a single component or a combined component.

[0018] Further, the back pressure spring comprises a back pressure spring upper end portion and a back pressure spring lower end portion, and the back pressure spring can be a spring component or a metal elastic component.

[0019] Further, the floating cover plate comprises a floating cover plate upper end face, a floating cover plate lower end face, a floating cover plate assembly hole, a floating cover plate assembly slot, a floating cover plate oil groove, a floating cover plate assembly hole, a floating cover plate assembly slot, and a floating cover plate oil groove.

[0020] The utility model discloses still provide a kind of compressor, the oil supply structure of oil quantity of above-mentioned can be automatically adjusted is used on the compressor.

[0021] Due to the adoption of the above technical scheme, compared with the prior art, the utility model has the following advantages:

[0022] 1, the utility model provides a kind of compressor oil supply structure of oil quantity can be automatically adjusted, when compressor operates, by the synergistic effect of cover body, support plate, floating cover plate, back pressure spring and other components, can automatically adjust the oil quantity in the compressor oil pool according to actual demand.When the gravity of refrigeration oil in cover body is greater than the sum of the elastic force of back pressure spring and the liquid buoyancy of refrigeration oil in lower cover oil pool, the floating cover plate opens oil supply, otherwise, it stops oil supply, effectively prevents excessive refrigeration oil from gathering in lower cover oil pool, avoids excessive agitation of refrigeration oil by crankshaft rotation, thereby reduce the power consumption of compressor, improve the overall machine efficiency.

[0023] 2, the utility model provides a kind of compressor oil supply structure of oil quantity can be automatically adjusted, the setting of cover body effectively blocks liquid refrigerant into lower cover oil pool when compressor starts and stops, prevents refrigerant and refrigeration oil from mixing and diluting. In this way, when compressor is started again, the concentration and lubricating performance of refrigeration oil can be ensured, the wear of mechanical parts sliding part caused by oil shortage is reduced, the good lubrication and sealing effect of each sliding part and sealing surface of compressor are ensured, the service life of compressor is prolonged, and the overall reliability of compressor is enhanced.

[0024] 3, the utility model provides a kind of compressor oil supply structure of oil quantity can be automatically adjusted, rivet bolt can be solid or hollow columnar structure and integrally formed, support plate can be integrally formed component or combined component, guide column body can be single component or combined component, back pressure spring can be spring component or metal elastic component, etc. This diversified design makes each component have higher flexibility in manufacturing and installation, can adapt to the structure and performance requirements of different compressors, is convenient for wide application and promotion in the field of refrigeration and air conditioning compressor, reduces production cost, and improves production efficiency.

[0025] Based on the above reasons, the utility model can be popularized in the technical field of regulating valve. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of not paying creative labor.

[0027] Figure 1 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted and compressor shell, lower cover assembly schematic diagram;

[0028] Figure 2 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted schematic diagram;

[0029] Figure 3 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted cover body structure schematic diagram;

[0030] Figure 4 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted rivet structure schematic diagram;

[0031] Figure 5 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted support plate structure schematic diagram;

[0032] Figure 6 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted guide column structure schematic diagram;

[0033] Figure 7 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted back pressure spring structure schematic diagram;

[0034] Figure 8 It is a kind of compressor oil supply structure of the present application described in the oil amount can be automatically adjusted floating cover plate structure schematic diagram.

[0035] In the figure: 10, shell; 20, lower cover; 30, oil supply pipe; 40, cover body; 41, cover upper end plate oil return port; 42, cover front end plate; 43, cover lower end plate; 44, cover lower end plate assembly hole; 45, cover lower end plate oil supply hole; 46, cover lower end plate assembly hole; 47, cover rear end plate; 48, cover upper end plate; 50, rivet; 51, upper end of rivet; 52, lower end of rivet; 60, support plate; 601, upper end plate of support plate; 602, upper end plate assembly hole of support plate; 603, upper end plate oil supply hole of support plate; 604, upper end plate assembly hole of support plate; 605, lower end plate of support plate; 606, lower end plate assembly groove of support plate; 607, lower end plate assembly hole of support plate; 608, lower end plate oil supply hole of support plate; 609, lower end plate assembly groove of support plate; 610, lower end plate assembly hole of support plate; 70, guide column body; 71, upper end of guide column body; 72, lower end of guide column body; 73, first guide column body; 74, second guide column body; 80, return spring; 81, upper end of return spring; 82, lower end of return spring; 83, first return spring; 84, second return spring; 90, floating cover plate; 91, upper end face of floating cover plate; 92, lower end face of floating cover plate; 93, first floating cover plate assembly hole; 94, first floating cover plate assembly groove; 95, first floating cover plate oil groove; 96, second floating cover plate assembly hole; 97, second floating cover plate assembly groove; 98, second floating cover plate oil groove; 100, crankshaft; 110, secondary support. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0037] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present inventive subject matter. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0039] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present inventive subject matter, unless otherwise specifically stated. It is to be understood that the specific drawings shown are for purposes of the description only and in no way limit the scope of the present inventive subject matter. Also, it is to be understood that the terminology used in the description is for the purpose of describing the particular versions or embodiments only and is not intended to limit the scope of the present inventive subject matter. Techniques, methods, and apparatus known to those of ordinary skill are not discussed in detail because they would be

[0040] In the description of the present inventive subject matter, it is to be understood that the terms such as "front," "back," "inside," "outside," "right," "left," "up," "down," "top," "bottom," "vertical," "horizontal," "lateral," "longitudinal," "transverse," and "horizontal" merely describe the relative position or orientation of an object as shown in the drawings and are not intended to be limiting of the present inventive subject matter to a particular orientation or location. Terms such as "front," "back," "inside," "outside," "right," "left," "up," "down," "top," "bottom," "vertical," "horizontal," "lateral," "longitudinal," "transverse," and "horizontal" are used merely to describe the relative position or orientation of an object as shown in the drawings and are not intended to be limiting of the present inventive subject matter to a particular orientation or location.

[0041] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative descriptors used herein interpreted accordingly.

[0042] In addition, it needs to be explained that the use of the words "first", "second" and the like to define parts, only for the convenience of distinguishing the corresponding parts, as no further declaration, the above words have no special meaning, therefore can not be understood as limiting the scope of protection of the utility model.

[0043] Embodiment

[0044] As Figure 1 shown, the utility model provides a kind of oil amount automatic regulating compressor oil supply structure and compressor shell 10, lower cover 20, crankshaft 100, vice support 110 assembly schematic drawing. This example shows that shell 10, lower cover 20, oil supply pipe 30, crankshaft 100, vice support 110 and the assembly relationship schematic of automatic regulating oil supply structure, cover front end plate 42 and shell 10, lower cover 20 inner surface contact, and cover body 40 can be connected with shell 10 using bolt, rivet or welding etc., to ensure that oil supply is reliable, 2L1≤L2≤6L1, wherein L1 is the height of the lower end surface of oil supply pipe 30 from the bottom surface of lower cover 20, L2 is the height of the lower end plate oil supply hole 45 end surface from the bottom surface of lower cover 20. Cover rear end plate 47 and vice support 110 contact, can play the role of support and limit, cover upper end plate 48 and crankshaft 100 are clearance fit, can be appropriately prevented liquid refrigerant impact oil pool, while not affecting the normal function of crankshaft 100.

[0045] As Figure 2The shown automatic oil supply adjusting structure at least includes a cover body 40, a rivet 50, a support plate 60, a guide column 70, a back pressure spring 80, and a floating cover plate 90. The adjustable oil supply structure includes one or more than one cover body 40, support plate 60, floating cover plate 90, and corresponding rivet 50, guide column 70, and back pressure spring 80. The utility model is described by using the example of the cover body 40, rivet 50, support plate 60, guide column 70, back pressure spring 80, and floating cover plate 90.

[0046] The cover lower end plate 43 is in contact with the support plate upper end plate 601, the cover lower end plate assembly hole 44 is coaxially aligned with the support plate upper end plate assembly hole 602, the cover lower end plate assembly hole 46 is coaxially aligned with the support plate upper end plate assembly hole 604, and the two rivets 50 are connected. The first rivet 53 is in clearance fit with the cover lower end plate assembly hole 44 and the support plate upper end plate assembly hole 602, the upper end of the rivet 51 is in contact with the end face of the cover lower end plate assembly hole 44, the upper end of the rivet 52 is in contact with the end face of the support plate upper end plate assembly hole 602, the second rivet 54 is in clearance fit with the cover lower end plate assembly hole 46 and the support plate upper end plate assembly hole 604, the upper end of the rivet 501 is in contact with the end face of the cover lower end plate assembly hole 46, and the upper end of the rivet 52 is in contact with the end face of the support plate upper end plate assembly hole 604. The cover lower end plate 43 and the support plate upper end plate 601 can also be connected by bolts or welding.

[0047] The floating cover plate 90 is installed in the support plate 60, and the guide column 70 and the back pressure spring 80 are used to realize the opening and closing of the floating cover plate 90. The upper end face 91 of the floating cover plate is in contact with the cover lower end plate 43, and the two guide columns 70 and the back pressure spring 80 are installed between the floating cover plate 90 and the support plate 60. The upper end of the first guide column 73 is in contact with the cover lower end plate 43, the first guide column 73 is in clearance fit with the floating cover plate, and the lower end of the first guide column 73 is in contact with the bottom of the support plate lower end plate assembly hole 607. The upper end of the first back pressure spring 83 is in contact with the end of the floating cover plate assembly groove 904, and the lower end of the first back pressure spring 83 is in contact with the end of the support plate lower end plate assembly groove 606. The upper end of the second guide column 74 is in contact with the cover lower end plate 43, the second guide column 73 is in clearance fit with the floating cover plate, and the lower end of the second guide column 74 is in contact with the bottom of the support plate lower end plate assembly hole 610. The upper end of the second back pressure spring 84 is in contact with the end of the second floating cover plate assembly groove 97, and the lower end of the second back pressure spring 84 is in contact with the end of the support plate lower end plate assembly groove 609.

[0048] The advantage of the structure is that when the gravity of the frozen oil in the cover body 40 is greater than the sum of the elastic force provided by the back pressure spring 80 and the liquid buoyancy of the frozen oil in the oil pool of the lower cover 20, the floating cover plate 90 can move towards the lower cover 20 and open the oil supply channel formed by the support plate lower end plate 605 and the first floating cover plate oil groove 95, the support plate lower end plate 609 and the second floating cover plate oil groove 98, so that the frozen oil in the cover body 40 flows to the oil pool of the lower cover 20 through the oil supply channel, ensuring the supply of frozen oil; when the gravity of the frozen oil in the cover body 40 is less than the sum of the elastic force provided by the back pressure spring 80 and the liquid buoyancy of the frozen oil in the oil pool of the lower cover 20, the floating cover plate 90 will move towards the cover body 40 and be attached to the lower end plate 43 of the cover body, closing the oil supply channel, so that the frozen oil in the cover body 40 no longer flows to the oil pool of the lower cover 20, preventing the oil pool of the lower cover 20 from being too full of frozen oil and preventing the oil from being stirred to increase power consumption.

[0049] As shown in Figure 3 The cover body 40 should include a cover body upper end plate oil return port 41, a cover body front end plate 42, a cover body lower end plate 43, a cover body lower end plate assembly hole 44, a cover body lower end plate oil supply hole 45, a cover body lower end plate assembly hole 46, a cover body rear end plate 47, and a cover body upper end plate 408. The cover body upper end plate oil return port 41 is mainly used for external frozen oil to flow back to the cover body 40. The shape of the cover body front end plate 42 depends on the shape of the shell 10 and the lower cover 20, and the main purpose is to better fit the inner wall of the shell 10 and the lower cover 20, save installation space, and also increase the oil storage capacity. The cover body lower end plate oil supply hole 45 is provided at the bottom of the cover body 40, and the diameter of the oil supply hole is designed as D1, which should be D1≥N×D, N≥1, so that it can ensure normal oil circulation and achieve ideal oil supply effect. The cover body rear end plate 47 is in contact with the auxiliary support 110, which can play a supporting and limiting role, and the cover body upper end plate 48 is in clearance fit with the crankshaft 100, which can appropriately prevent liquid refrigerant from impacting the oil pool while not affecting the normal function of the crankshaft 100.

[0050] As shown in Figure 4 The rivet 50 should include a rivet upper end 51 and a rivet lower end 52, which are mainly used for the connection and fixation of the cover body 40 and the support plate.

[0051] As shown in Figure 5As shown, the support plate 60 should include the support plate upper end plate 601, the support plate upper end plate assembly hole 602, the support plate upper end plate oil supply hole 603, the support plate upper end plate assembly hole 604, the support plate lower end plate 605, the support plate lower end plate assembly groove 606, the support plate lower end plate assembly hole 607, the support plate lower end plate oil supply hole 608, the support plate lower end plate assembly groove 609, the support plate lower end plate assembly hole 610. Among them, the support plate upper end plate 601 is in surface contact with the cover body lower end plate 403, the support plate upper end plate assembly hole 602 and the support plate upper end plate assembly hole 604 are used for assembly connection with the cover body 40, the support plate lower end plate 605 is used for supporting when the floating cover plate 90 falls down, and forms an oil supply channel with it. The support plate lower end plate assembly groove 606 is used for assembly with the back pressure spring 83, and the support plate lower end plate assembly groove 609 is used for assembly with the back pressure spring 84. The support plate lower end plate assembly hole 607 is used for assembly with the guide column body 73, and the support plate lower end plate assembly hole 610 is used for assembly with the guide column body 74. The support plate upper end plate oil supply hole 603 has a diameter D2, and the support plate lower end plate oil supply hole 608 has a diameter D3. To ensure smooth oil supply, D2≥D3 should be met. The support plate can be integrally formed or combined.

[0052] As shown in Figure 6 The guide column body 70 should include the guide column body upper end 71 and the guide column body lower end 72, mainly used for the connection and fixation of the cover body 40 and the support plate. The guide column body can be a single component or a combined component.

[0053] As shown in Figure 7 The back pressure spring 80 should include the back pressure spring upper end 81 and the back pressure spring lower end 82, mainly used for providing a rebound force for the floating cover plate 90. The back pressure spring can be a spring component or a metal elastic component or assembly.

[0054] As shown in Figure 8 The floating cover plate 90 should include the floating cover plate upper end face 91, the floating cover plate lower end face 92, the first floating cover plate assembly hole 93, the first floating cover plate assembly groove 94, the first floating cover plate oil groove 95, the second floating cover plate assembly hole 96, the second floating cover plate assembly groove 97, and the second floating cover plate oil groove 98. Among them, the floating cover plate upper end face 91 is used for sealing with the cover body lower end plate 43 when the floating cover plate 90 is closed, the first floating cover plate assembly hole 93 is used for assembly with the guide column body 73, the second floating cover plate assembly hole 96 is used for assembly with the guide column body 704, the first floating cover plate assembly groove 94 is used for assembly with the back pressure spring 83, the second floating cover plate assembly groove 97 is used for assembly with the back pressure spring 84, and the first floating cover plate oil groove 95 and the second floating cover plate oil groove 98 are used for forming an oil flow channel with the support plate lower end plate 605 when the floating cover plate 90 is opened, and supplying oil to the oil pool of the downward cover 20.

[0055] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application examples.

Claims

1. A compressor oil supply structure with automatically adjustable oil quantity, characterized in that, Comprise: The shell, the lower cover, the oil supply pipe, the cover body, the rivet, the support plate, the guide column, the back pressure spring, the floating cover plate, the crankshaft, the vice support: The floating cover plate is connected through the back pressure spring and the support plate, the back pressure spring is installed on the guide column, and the guide column is installed on the support plate; The support plate is connected and fixed with the cover body through the rivet; The cover body is arranged on the compressor shell and the lower cover, the cover body is attached to the vice support, and the cover body is in gap cooperation with the crankshaft.

2. The oil supply structure of the oil amount self-adjustable compressor according to claim 1, characterized by The cover body comprises a cover upper end plate oil return port, a cover front end plate, a cover lower end plate, a cover lower end plate assembly hole, a cover lower end plate oil supply hole, a cover rear end plate and a cover upper end plate. The diameter D1 of the cover lower end plate oil supply hole, the inner diameter D of the compressor oil supply pipe, the height L2 of the cover lower end plate oil supply hole position from the lower cover bottom surface, and the height L1 of the lower end surface of the oil supply pipe from the lower cover bottom surface ensure reliable oil supply, and need to meet: D1≥N×D, 2L1≤L2≤6L1, wherein N≥1; When the compressor is in stable operation, the floating cover plate can be opened when the gravity of the refrigerant oil in the cover body is greater than the sum of the elastic force provided by the back pressure spring and the liquid buoyancy of the refrigerant oil in the lower cover oil pool, the refrigerant oil in the cover body flows to the lower cover oil pool, and the supply of the refrigerant oil is ensured; When the gravity of the refrigerant oil in the cover body is less than the sum of the elastic force provided by the back pressure spring and the liquid buoyancy of the refrigerant oil in the lower cover oil pool, the floating cover plate is closed, the refrigerant oil in the cover body no longer flows to the lower cover oil pool, and excessive refrigerant oil in the lower cover oil pool is prevented, so that oil stirring is prevented.

3. The oil supply structure of the compressor whose oil amount is automatically adjusted according to claim 1, characterized by The rivet is an integrally formed component, the rivet is a solid or hollow columnar structure, and comprises a rivet upper end portion and a rivet lower end portion.

4. The oil supply structure of the oil amount self-adjustable compressor according to claim 1, wherein The support plate comprises a support plate upper end plate and a support plate lower end plate. The support plate upper end plate is provided with a support plate upper end plate assembly hole and a support plate upper end plate oil supply hole, the support plate lower end plate is provided with a support plate lower end plate assembly hole and a support plate lower end plate oil supply hole, the support plate is an integrally formed component or a combined component, the diameter of the support plate upper end plate oil supply hole is D2, the diameter of the support plate lower end plate oil supply hole is D3, and D2≥D3 is considered in terms of installation convenience and the oil supply effect of the floating cover plate.

5. The oil supply structure of the oil amount self-adjustable compressor according to claim 1, wherein The guide column comprises a guide column upper end portion and a guide column lower end portion, and the guide column can be a single component or a combined component.

6. The oil supply structure of the oil amount self-adjustable compressor according to claim 1, wherein The back pressure spring comprises a back pressure spring upper end portion and a back pressure spring lower end portion, and the back pressure spring is a metal elastic component.

7. The oil self-adjustable compressor oil supply structure according to claim 1, wherein The floating cover plate comprises a floating cover plate upper end surface, a floating cover plate lower end surface, a floating cover plate assembly hole, a floating cover plate assembly groove and a floating cover plate oil groove.

8. A compressor characterized by, The compressor uses the oil amount automatically adjustable oil supply structure in any one of claims 1 to 7.

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