Compressor oil supply structure capable of automatically adjusting oil quantity

Abstract

The invention provides a compressor oil supply structure capable of automatically adjusting oil quantity, which belongs to the technical field of refrigeration air conditioner 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 refrigerant is prevented from being mixed with 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 invention relates to the field of refrigeration and air-conditioning compressors, and in particular to a compressor oil supply structure with automatically adjustable oil quantity. Background Art

[0002] The oil supply mechanism of the traditional refrigeration and air conditioning 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 the oil pump. Such a structure mainly has the following shortcomings: First, when the compressor is stopped, part of the liquid refrigerant will migrate back into the compressor, that is, flow in the lower cover. Excessive refrigerant will dissolve with the refrigeration oil and dilute the refrigeration oil. When the compressor is started again, the diluted refrigeration oil will be discharged from the compressor along with the refrigerant. The reduction of refrigeration oil will affect the lubrication and cooling effect of the compressor, and at the same time aggravate the wear of the sliding parts of the mechanical parts, and eventually lead to the failure of the mechanical parts. Secondly, when the compressor is running stably, the refrigeration oil in the oil pool of the lower cover should not be too much. When the compressor is running, the rotating crankshaft and the oil supply pipe will stir the oil pool, resulting in unstable oil level. At the same time, the compressor power increases, affecting the efficiency of the whole machine. In summary, it is necessary to invent an automatic adjustment mechanism that can reduce the impact of liquid refrigerant, dilute the refrigeration oil in the oil pool, and at the same time prevent the compressor from having too much oil and the oil level from being too high, and can control the oil supply of the compressor. Summary of the invention

[0003] According to the technical problem raised above, a compressor oil supply structure with automatically adjustable oil quantity is provided. The present invention combines various sub-components into a component mechanism as a whole. When the compressor is running, the internal structure needs to be lubricated with sufficient refrigeration oil. The present invention enables the oil quantity of the compressor to be controllable and supplied on demand when it is running.

[0004] The technical means adopted by the present invention are as follows:

[0005] A compressor oil supply structure with automatically adjustable oil quantity, comprising: a housing, a lower cover, an oil supply pipe, a cover body, rivet bolts, a support plate, a guide column, a return pressure spring, a floating cover plate, a crankshaft, and a secondary support:

[0006] The floating cover plate is connected by a return pressure spring and a pressure spring, the return pressure spring is mounted on the guide cylinder, the return pressure spring is mounted on the guide cylinder, and the guide cylinder and the guide cylinder are mounted on the support plate;

[0007] The support plate is connected and fixed to the cover body by rivet bolts and rivet bolts;

[0008] The cover body is arranged and installed on the compressor housing and the lower cover, the cover body is fitted with the auxiliary support, and the cover body is clearance-fitted with the crankshaft.

[0009] Further, the cover body includes an oil return port on the cover upper end plate, 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 lower end plate assembly hole, a cover rear end plate and a cover upper end plate;

[0010] The diameter of the oil supply hole on the lower end plate of the cover is D1, the inner diameter of the oil supply pipe of the compressor is D, the height of the oil supply hole on the lower end plate of the cover from the bottom surface of the lower cover is L2, and the height of the lower end surface of the oil supply pipe from the bottom surface of the lower cover is L1. To ensure reliable oil supply, the following conditions must be met:

[0011] D1≥N×D, 2L1≤L2≤6L1, where N≥1;

[0012] When the compressor is running stably, when the gravity of the refrigerant oil in the cover body is greater than the sum of the elastic force provided by the return pressure spring and the buoyancy of the refrigerant oil liquid in the lower cover oil pool, the floating cover plate can be opened, and the refrigerant oil in the cover body flows into the lower cover oil pool to ensure 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 return pressure spring and the buoyancy of the refrigerant oil liquid in the lower cover oil pool, the floating cover plate closes, and the refrigerant oil in the cover body no longer flows to the lower cover oil pool, preventing excessive refrigerant oil in the lower cover oil pool from causing oil stirring.

[0014] Furthermore, the rivet bolt is an integrally formed component, and the rivet bolt is a solid or hollow columnar structure, including an upper end portion of the rivet bolt and a lower end portion of the rivet bolt.

[0015] Furthermore, the support plate comprises an upper end plate of the support plate and a lower end plate of the support plate;

[0016] The upper end plate of the support plate is provided with a support plate upper end plate assembly hole and a support plate upper end plate oil supply hole, and a support plate upper end plate assembly hole. The lower end plate of the support 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, and a support plate lower end plate assembly hole. 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 convenience of installation and the oil supply effect of the floating cover plate, D2 ≥ D3 should be met.

[0017] Furthermore, the guide column includes an upper end portion of the guide column and a lower end portion of the guide column, and the guide column can be a single component or a combined component.

[0018] Furthermore, the return pressure spring includes an upper end portion of the return pressure spring and a lower end portion of the return pressure spring, and the return pressure spring may be a spring-like component or a metal elastic component.

[0019] Furthermore, the floating cover plate includes 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, a floating cover plate oil groove, a floating cover plate assembly hole, a floating cover plate assembly groove, and a floating cover plate oil groove.

[0020] The present invention also provides a compressor, on which the above-mentioned oil supply structure with automatically adjustable oil quantity is used.

[0021] Due to the adoption of the above technical solution, compared with the prior art, the present invention has the following advantages:

[0022] 1. The present invention provides a compressor oil supply structure with automatically adjustable oil quantity. When the compressor is running, the oil quantity in the compressor oil pool can be automatically adjusted according to actual needs through the coordinated action of the cover body, support plate, floating cover plate, return pressure spring and other components. When the gravity of the refrigerant oil in the cover body is greater than the sum of the elastic force of the return pressure spring and the buoyancy of the refrigerant oil liquid in the lower cover oil pool, the floating cover plate opens to supply oil; otherwise, it closes and stops supplying oil, effectively preventing excessive refrigerant oil from accumulating in the lower cover oil pool, avoiding excessive stirring of the refrigerant oil by the rotation of the crankshaft, thereby reducing the power consumption of the compressor and improving the energy efficiency of the whole machine.

[0023] 2. The invention provides a compressor oil supply structure with automatically adjustable oil quantity. The setting of the cover body effectively blocks the liquid refrigerant from entering the lower cover oil pool when the compressor is started and stopped, and prevents the refrigerant from mixing and diluting with the refrigeration oil. In this way, when the compressor is started again, the concentration and lubrication performance of the refrigeration oil can be ensured, the wear of the sliding parts of the mechanical parts due to lack of oil can be reduced, and the good lubrication and sealing effect of the sliding parts and sealing surfaces of the compressor can be ensured, the service life of the compressor can be extended, and the overall reliability of the compressor can be enhanced.

[0024] 3. The present invention provides a compressor oil supply structure with automatically adjustable oil quantity, wherein the rivet bolt can be a solid or hollow cylindrical structure and can be integrally formed, the support plate can be an integrally formed component or a combined component, the guide column can be a single component or a combined component, the return pressure spring can be a spring-like component or a metal elastic component, etc. This diversified design allows each component to have higher flexibility during manufacturing and installation, can adapt to the structural and performance requirements of different compressors, is convenient for wide application and promotion in the field of refrigeration and air-conditioning compressors, reduces production costs, and improves production efficiency.

[0025] Based on the above reasons, the present invention can be promoted in the technical field of regulating valves. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a schematic diagram of the assembly of a compressor oil supply structure with automatically adjustable oil quantity, a compressor housing and a lower cover according to the present invention;

[0028] Figure 2 It is a schematic diagram of a compressor oil supply structure with automatically adjustable oil quantity according to the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a cover body of a compressor oil supply structure with automatically adjustable oil quantity according to the present invention;

[0030] Figure 4 It is a schematic diagram of the rivet bolt structure of a compressor oil supply structure with automatically adjustable oil quantity according to the present invention;

[0031] Figure 5 It is a structural schematic diagram of a support plate of a compressor oil supply structure with automatically adjustable oil quantity according to the present invention;

[0032] Figure 6 It is a schematic diagram of the guide column structure of a compressor oil supply structure with automatically adjustable oil quantity according to the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of a return pressure spring of a compressor oil supply structure with automatically adjustable oil quantity according to the present invention;

[0034] Figure 8 The present invention is a schematic diagram of a floating cover plate structure of a compressor oil supply structure with automatically adjustable oil quantity.

[0035] In the figure: 10, shell; 20, lower cover; 30, oil supply pipe; 40, cover body; 41, oil return port of upper end plate of cover; 42, front end plate of cover; 43, lower end plate of cover; 44, assembly hole of lower end plate of cover; 45, oil supply hole of lower end plate of cover; 46, assembly hole of lower end plate of cover; 47, rear end plate of cover; 48, upper end plate of cover; 50, rivet bolt; 51, upper end of rivet bolt; 52, lower end of rivet bolt; 60, support plate; 601, upper end plate of support plate; 602, assembly hole of upper end plate of support plate; 603, oil supply hole of upper end plate of support plate; 604, assembly hole of upper end plate of support plate; 605, lower end plate of support plate; 606, assembly groove of lower end plate of support plate; 607, support plate Assembly hole of lower end plate; 608, oil supply hole of lower end plate of support plate; 609, assembly groove of lower end plate of support plate; 610, assembly hole of lower end plate of support plate; 70, guide column; 71, upper end portion of guide column; 72, lower end portion of guide column; 800, return pressure spring; 81, upper end portion of return pressure spring; 82, lower end portion of return pressure spring; 90, floating cover plate; 91, upper end surface of floating cover plate; 92, lower end surface of floating cover plate; 93, assembly hole of first floating cover plate; 94, assembly groove of first floating cover plate; 95, oil groove of first floating cover plate; 96, assembly hole of second floating cover plate; 97, assembly groove of second floating cover plate; 98, oil groove of second floating cover plate; 100, crankshaft; 110, auxiliary support. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0041] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0042] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0043] Example

[0044] like Figure 1 As shown, the present invention provides a schematic diagram of the assembly of a compressor oil supply structure with automatically adjustable oil quantity and a compressor housing 10, a lower cover 20, a crankshaft 100, and a secondary support 110. This example shows the schematic diagram of the assembly relationship between the housing 10, the lower cover 20, the oil supply pipe 30, the crankshaft 100, the secondary support 110 and the automatically adjustable oil supply structure. The front end plate 42 of the cover body contacts the inner surface of the housing 10 and the lower cover 20, and the cover body 40 can be connected to the housing 10 by bolts, rivets or welding. To ensure reliable oil supply, 2L1≤L2≤6L1, where L1 is the height of the lower end face of the oil supply pipe 30 from the bottom surface of the lower cover 20, and L2 is the height of the end face of the oil supply hole 45 of the lower end plate of the cover body from the bottom surface of the lower cover 20. The rear end plate 47 of the cover body contacts the secondary support 110, which can play a supporting and limiting role. The upper end plate 48 of the cover body and the crankshaft 100 are clearance-matched, which can appropriately prevent the liquid refrigerant from impacting the oil pool, and at the same time does not affect the normal function of the crankshaft 100.

[0045] like Figure 2 The automatically adjustable oil supply structure shown includes at least a cover body 40, a rivet bolt 50, a support plate 60, a guide column 70, a return pressure spring 80, and a floating cover plate 90. The adjustable oil supply structure includes one or more cover bodies 40, a support plate 60, and a floating cover plate 90, and the corresponding number of rivet bolts 50, guide columns 70, and return pressure springs 80 increases accordingly. The present invention is described using an example with one cover body 40, namely, the cover body 40, the rivet bolt 50, the support plate 60, the guide column 70, the return pressure spring 80, and the floating cover plate 90.

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

[0047] The floating cover plate 90 is installed in the support plate 60, and the opening and closing functions of the floating cover plate 90 are realized by the guide cylinder 70 and the return pressure spring 80. The upper end surface 91 of the floating cover plate contacts the lower end plate 43 of the cover body, and the two guide cylinders 70 and the return pressure spring 80 are installed between the floating cover plate 90 and the support plate 60. The upper end 701 of the guide cylinder 73 contacts the lower end plate 43 of the cover body, the first guide cylinder 73 and the floating cover plate are clearance-matched, and the lower end 72 of the guide cylinder 73 contacts the bottom of the assembly hole 607 of the lower end plate of the support plate. The upper end 81 of the return pressure spring 83 contacts the end of the floating cover plate assembly groove 904, and the lower end 82 of the return pressure spring 83 contacts the end of the assembly groove 606 of the lower end plate of the support plate. The upper end 71 of the second guide column 74 contacts the lower end plate 43 of the cover body, the second guide column 73 and the floating cover plate are clearance-matched, and the lower end 72 of the second guide column 74 contacts the bottom of the support plate lower end plate assembly hole 610. The upper end 81 of the second return spring 84 contacts the end of the second floating cover plate assembly groove 97, and the lower end 82 of the second return spring 84 contacts the end of the support plate lower end plate assembly groove 609.

[0048] The advantage of the structure is that when the weight of the refrigerant oil in the cover body 40 is greater than the sum of the elastic force provided by the return pressure spring 80 and the buoyancy of the refrigerant oil liquid in the oil pool of the lower cover 20, the floating cover plate 90 can move toward the lower cover 20 and open the lower end plate 605 of the support plate and the first floating cover plate oil groove 95. The oil supply channel formed by the lower end plate 609 of the support plate and the second floating cover plate oil groove 98 allows the refrigerant oil in the cover body 40 to flow into the oil pool of the lower cover 20 through the oil supply channel, thereby ensuring the supply of refrigerant oil; when the weight of the refrigerant oil in the cover body 40 is less than the sum of the elastic force provided by the return pressure spring 80 and the buoyancy of the refrigerant oil liquid in the oil pool of the lower cover 20, the floating cover plate 90 will move toward the cover body 40 and fit with the lower end plate 43 of the cover body to close the oil supply channel, and the refrigerant oil in the cover body 40 will no longer flow into the oil pool of the lower cover 20, thereby preventing excessive refrigerant oil in the oil pool of the lower cover 20 and preventing oil stirring and increasing power consumption.

[0049] like Figure 3As shown, the cover body 40 should include an oil return port 41 on the cover upper end plate, a cover front end plate 42, a cover lower end plate 43, a cover lower end plate assembly hole 44, a cover lower end plate oil supply hole 45, a cover lower end plate assembly hole 46, a cover rear end plate 47 and a cover upper end plate 408, wherein the cover upper end plate oil return port 41 is mainly used for the external refrigeration oil to return to the cover body 40. The shape of the cover 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 with 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 40 is provided with a cover lower end plate oil supply hole 45 at the bottom, and the diameter of the oil supply hole is designed to be D1, and its size should be D1≥N×D, N≥1 with the diameter D of the oil supply pipe 30, so that it can ensure normal oil circulation and achieve an ideal oil supply effect. The rear end plate 47 of the cover body contacts the auxiliary support 110, which can play a supporting and limiting role. The upper end plate 48 of the cover body and the crankshaft 100 are clearance-matched, which can appropriately prevent the liquid refrigerant from impacting the oil pool without affecting the normal function of the crankshaft 100.

[0050] like Figure 4 As shown, the rivet bolt 50 should include an upper end portion 51 and a lower end portion 52 of the rivet bolt, and is mainly used for connecting and fixing the cover body 40 and the support plate.

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

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

[0053] like Figure 7 As shown, the return spring 80 should include an upper end 81 and a lower end 82 of the return spring, and is mainly used to provide a rebound force for the floating cover plate 90. The return spring can be a spring-like component or a metal elastic component or assembly.

[0054] like Figure 8 As shown, the floating cover plate 90 should include a floating cover plate upper surface 91, a floating cover plate lower surface 92, a first floating cover plate assembly hole 93, a first floating cover plate assembly groove 94, a first floating cover plate oil groove 95, a second floating cover plate assembly hole 96, a second floating cover plate assembly groove 97, and a second floating cover plate oil groove 98. Among them, the floating cover plate upper surface 91 is used to seal 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 to assemble with the guide column 73, the second floating cover plate assembly hole 96 is used to assemble with the guide column 704, the first floating cover plate assembly groove 94 is used to assemble with the return pressure spring 83, the second floating cover plate assembly groove 97 is used to assemble with the return pressure spring 84, and the first floating cover plate oil groove 95 and the second floating cover plate oil groove 98 are used to form an oil flow channel with the support plate lower end plate 605 when the floating cover plate 90 is opened, and supply oil to the oil pool of the lower cover 20.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A compressor oil supply structure with automatically adjustable oil quantity, characterized in that: include: Shell, lower cover, oil supply pipe, cover body, rivet bolts, support plate, guide column, return spring, floating cover, crankshaft, auxiliary support: The floating cover plate is connected by a return pressure spring and a pressure spring, the return pressure spring is mounted on the guide cylinder, the return pressure spring is mounted on the guide cylinder, and the guide cylinder and the guide cylinder are mounted on the support plate; The support plate is connected and fixed to the cover body by rivet bolts and rivet bolts; The cover body is arranged and installed on the compressor housing and the lower cover, the cover body is fitted with the auxiliary support, and the cover body is clearance-fitted with the crankshaft.

2. A compressor oil supply structure with automatically adjustable oil quantity according to claim 1, characterized in that: The cover body includes an oil return port on the cover upper end plate, 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 lower end plate assembly hole, a cover rear end plate and a cover upper end plate; The diameter of the oil supply hole on the lower end plate of the cover is D1, the inner diameter of the oil supply pipe of the compressor is D, and the height of the oil supply hole on the lower end plate of the cover from the bottom surface of the lower cover is L 2， The height between the lower end of the oil supply pipe and the bottom of the lower cover is L1. To ensure reliable oil supply, the following conditions must be met: D1≥N×D, 2L1≤L2≤6L1, where N≥1; When the compressor is running stably, when the gravity of the refrigerant oil in the cover body is greater than the sum of the elastic force provided by the return pressure spring and the buoyancy of the refrigerant oil liquid in the lower cover oil pool, the floating cover plate can be opened, and the refrigerant oil in the cover body flows into the lower cover oil pool to ensure the supply of refrigerant oil; When the gravity of the refrigerant oil in the cover body is less than the sum of the elastic force provided by the return pressure spring and the buoyancy of the refrigerant oil liquid in the lower cover oil pool, the floating cover plate closes, and the refrigerant oil in the cover body no longer flows to the lower cover oil pool, preventing excessive refrigerant oil in the lower cover oil pool from causing oil stirring.

3. The compressor oil supply structure with automatically adjustable oil quantity according to claim 1, characterized in that: The rivet bolt is an integrally formed component, and the rivet bolt is a solid or hollow columnar structure, including an upper end portion of the rivet bolt and a lower end portion of the rivet bolt.

4. The compressor oil supply structure with automatically adjustable oil quantity according to claim 1, characterized in that: The support plate comprises an upper end plate of the support plate and a lower end plate of the support plate; The upper end plate of the support plate is provided with a support plate upper end plate assembly hole and a support plate upper end plate oil supply hole, and a support plate upper end plate assembly hole. The lower end plate of the support 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, and a support plate lower end plate assembly hole. 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 convenience of installation and the oil supply effect of the floating cover plate, D2 ≥ D3 should be met.

5. The compressor oil supply structure with automatically adjustable oil quantity according to claim 1, characterized in that: The guide column comprises an upper end portion of the guide column and a lower end portion of the guide column, and the guide column can be a single component or a combined component.

6. The compressor oil supply structure with automatically adjustable oil quantity according to claim 1, characterized in that: The return pressure spring comprises an upper end portion and a lower end portion of the return pressure spring. The return pressure spring may be a spring-like component or a metal elastic component.

7. The compressor oil supply structure with automatically adjustable oil quantity according to claim 1, characterized in that: The floating cover plate comprises an upper end surface of the floating cover plate, a lower end surface of the floating cover plate, a floating cover plate assembly hole, a floating cover plate assembly groove, a floating cover plate oil groove, a floating cover plate assembly hole, a floating cover plate assembly groove, and a floating cover plate oil groove.

8. A compressor, characterized in that: The compressor uses the oil supply structure with automatically adjustable oil quantity as described in any one of claims 1 to 7.

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