Supporting structure, shaft system structure and compressor

Abstract

The utility model provides a supporting structure, a shaft system structure and a compressor. The supporting structure comprises a fixing part which is fixedly arranged on one side of the rotor; the rotating assembly is rotatably arranged relative to the fixed part according to a preset rotating shaft; the rotating assembly comprises a rotating piece and a connecting piece which are connected with each other, the rotating piece is connected with the fixing piece, and the connecting piece is used for being fixedly connected with the rotor to support the rotor. According to the technical scheme, the technical problem that in the prior art, the deflection of a shaft system is increased in the operation process of a compressor can be solved.

Description

Technical Field

[0001] This utility model relates to the field of support structure technology, specifically to a support structure, shaft system structure and compressor. Background Technology

[0002] Currently, the support of the compressor's shaft system mainly relies on the upper and lower bearings at both ends.

[0003] However, in the actual operating environment of a vertical rotary compressor, due to uneven stress, the shaft system is prone to significant deflection or misalignment, especially at high speeds. Excessive shaft deflection can cause radial displacement of the crankshaft, potentially leading to unintended contact between the rotor and stator, thus exacerbating wear on internal components of the shaft system. Furthermore, shaft misalignment during operation can result in uneven pressure distribution on the contact surfaces between the crankshaft and the upper bearing, leading to excessive wear. This wear gradually disrupts the balance of the shaft system, affecting the smooth operation of the compressor and ultimately potentially causing performance degradation or failure. Utility Model Content

[0004] The main objective of this invention is to provide a support structure, shaft system structure, and compressor to solve the technical problem of increased shaft deflection during compressor operation in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a support structure is provided for supporting the rotor of a compressor, the support structure comprising:

[0006] The fixing component is fixedly installed on one side of the rotor;

[0007] A rotating assembly is rotatably arranged relative to a fixed member according to a preset rotating shaft. The rotating assembly includes a rotating member and a connecting member that are connected to each other. The rotating member is connected to the fixed member, and the connecting member is used to fix it to the rotor to support the rotor.

[0008] Furthermore, the fixing member has a ring-shaped structure and is used to be sleeved on the crankshaft of the compressor and spaced apart from the crankshaft. The fixing member has an inner ring surface and an outer ring surface that are arranged opposite to each other; wherein:

[0009] The rotating component has a ring-shaped structure and is sleeved on the fixed component. The rotating assembly also includes a rolling component, which is rotatably disposed between the fixed component and the rotating component; or...

[0010] The rotating component is a block structure, connected to the outer ring surface, and is movably arranged along the circumferential extension direction of the outer ring surface.

[0011] Furthermore, the connector is a rod-shaped structure, with one end used to connect to the rotor and the other end connected to the rotating component.

[0012] Furthermore, the fastener is a circular ring structure, and there are multiple connectors, which are spaced apart along the circumferential direction of the fastener.

[0013] Furthermore, there are multiple rotating parts, and multiple rotating parts and multiple connecting parts are arranged in a one-to-one correspondence.

[0014] Furthermore, there is one rotating component, and multiple connecting components are fixedly mounted on the rotating component.

[0015] Furthermore, the rotating component is provided with a connecting hole that extends through the rotating component along its height direction, and the other end of the connecting component is used to be inserted into the connecting hole; and / or,

[0016] The other end of the connector is threadedly connected to the rotating part; and / or,

[0017] The connector includes a main body and a limiting part. The limiting part is connected to the end of the main body. The main body extends along the height direction of the rotating part and is used to be inserted into the rotor and penetrate the rotor. The outer edge of the limiting part protrudes from the outer edge of the main body to form a limiting surface at the connection between the limiting part and the main body. The limiting surface is used to abut against the rotor.

[0018] According to another aspect of the present invention, a shaft system structure is provided, including the aforementioned support structure.

[0019] Furthermore, the shaft system structure includes an upper bearing and a rotor, with the upper bearing located below the rotor; wherein, a fixing member of the support structure is sleeved on the end of the upper bearing near the rotor; and / or,

[0020] The shaft system includes a rotor, on which a mounting hole is provided that extends along the height direction of the rotor and penetrates the rotor, and the connecting parts of the support structure are inserted into the mounting hole.

[0021] According to another aspect of the present invention, a compressor is provided, including the shaft system structure described above.

[0022] By employing a design that combines fixed components with rotatable rotating parts, this support structure effectively limits the radial and axial displacement of the rotor during compressor operation, thereby significantly improving shaft system stability and reducing mechanical damage caused by excessive shaft deflection. The fixed connection between the connecting parts and the rotor, and the rotatable fit between the rotating and fixed parts, disperse the stress generated by unbalanced forces during high-speed rotor operation, thus maintaining rotor operational stability and reducing the deflection variation of the compressor shaft system, effectively extending the overall service life of the compressor. Furthermore, the optimized support structure design reduces rotor rubbing, avoiding the resulting additional resistance, thereby improving compressor operating efficiency and energy conversion efficiency, and reducing energy consumption. Therefore, this invention solves the technical problem of increased shaft deflection during compressor operation in existing technologies. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0024] Figure 1 A top view of the fixing member and rotating assembly of the support structure provided according to Embodiment 1 of the present invention is shown;

[0025] Figure 2 A schematic diagram of the shaft system structure provided according to Embodiment 2 of the present invention is shown;

[0026] Figure 3 A cross-sectional structural schematic diagram of the shaft system provided according to Embodiment 2 of the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 1. Fixing component; 11. Inner annular surface; 12. Outer annular surface; 2. Rotating assembly; 21. Rotating component; 211. Connecting hole; 22. Connecting component; 221. Main body; 222. Limiting part; 2221. Limiting surface; 23. Rolling component; 24. Cage; 3. Upper bearing; 4. Rotor; 41. Mounting hole; 5. Crankshaft. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 3As shown, Embodiment 1 of this utility model provides a support structure for supporting the rotor 4 of a compressor. The support structure includes a fixing member 1 and a rotating assembly 2. The fixing member 1 is fixedly disposed on one side of the rotor 4. The rotating assembly 2 is rotatably disposed relative to the fixing member 1 according to a preset rotating shaft; the rotating assembly 2 includes a rotating member 21 and a connecting member 22 connected to each other. The rotating member 21 is connected to the fixing member 1, and the connecting member 22 is used to fixably connect to the rotor 4 to support the rotor 4.

[0031] The support structure provided in Embodiment 1 of this utility model, through the design of combining the fixed component 1 with the rotatable rotating component 2, effectively limits the radial and axial displacement of the rotor 4 during compressor operation, thereby significantly improving the stability of the shaft system and reducing mechanical damage caused by excessive shaft deflection. The fixed connection between the connecting component 22 and the rotor 4, and the rotatable engagement between the rotating component 21 and the fixed component 1, can disperse the stress generated by the unbalanced force when the rotor 4 is running at high speed, thereby maintaining the stable operation of the rotor 4, reducing the deflection change of the compressor shaft system, and effectively extending the overall service life of the compressor. In this way, the optimized support structure design can reduce the occurrence of rotor 4 rubbing phenomenon, avoid the additional resistance generated therefrom, thereby improving the operating efficiency and energy conversion efficiency of the compressor and reducing energy consumption. Therefore, the support structure provided in this embodiment can solve the technical problem of increased shaft deflection during compressor operation in the prior art.

[0032] Specifically, the preset rotating shaft is the central shaft of the crankshaft 5 of the compressor, and the preset rotating shaft extends along the length of the crankshaft 5. By adopting this structural setting, defining the preset rotating shaft as the central shaft of the crankshaft 5 and extending it along the length of the crankshaft 5, it can be ensured that the rotating component 2 of the support structure can maintain accurate alignment with the crankshaft 5 in any position, thereby avoiding the rotor 4 imbalance problem caused by shaft offset and improving the smoothness and efficiency of compressor operation.

[0033] Specifically, the fixing component 1 is fixedly positioned on the side of the rotor 4 near the upper bearing 3 of the compressor. This structural arrangement, with the fixing component 1 positioned on the side of the rotor 4 near the upper bearing 3, optimizes the layout of the support structure, allowing the rotor 4 to receive more direct lateral support during operation. This reduces the vibration amplitude of the shaft system during high-speed rotation, thereby improving the stability of the rotor 4 and reducing component wear caused by vibration. Simultaneously, it avoids increasing the overall height of the compressor.

[0034] Specifically, the fixed component 1 and the rotor 4 are spaced apart. This structural arrangement reduces the direct transmission of vibration, avoids unnecessary energy loss and noise, and improves the overall operating efficiency of the compressor and the comfort of the working environment.

[0035] Specifically, the fixing member 1 is an annular structure, used to be sleeved on the crankshaft 5 of the compressor and spaced apart from the crankshaft 5. The fixing member 1 has an inner annular surface 11 and an outer annular surface 12 arranged opposite to each other. The rotating member 21 is also an annular structure, sleeved on the fixing member 1. The rotating assembly 2 further includes a rolling member 23, which is rotatably disposed between the fixing member 1 and the rotating member 21. This structural arrangement, using an annular fixing member 1 sleeved on the crankshaft 5 and spaced apart from it, provides more uniform support for the shaft system, reducing shaft misalignment and vibration caused by localized stress concentration. This structure helps improve the shaft stability of the compressor under high load or high speed operating conditions. The spaced arrangement of the fixing member 1 and the crankshaft 5 avoids interference between the support structure and the crankshaft 5, ensuring the normal operation of the crankshaft 5.

[0036] Specifically, a rolling bearing structure is formed between the fixed member 1 and the rotating assembly 2, where the fixed member 1 corresponds to the inner ring of the bearing and the rotating member 21 corresponds to the outer ring of the bearing. The rotating assembly 2 also includes a cage 24, which is located between the fixed member 1 and the rotating member 21. The rolling members 23 are disposed on the cage 24. The cage 24 is used to keep adjacent rolling members 23 apart from each other, thereby ensuring that the rolling members 23 can rotate freely inside the bearing without contacting or getting stuck. The cage 24 is typically made of metal (such as brass, stainless steel, or light alloy) or engineering plastic.

[0037] Specifically, the fixing member 1 has a ring-shaped structure and is fitted onto the crankshaft 5 of the compressor at a distance from it. The fixing member 1 has an inner ring surface 11 and an outer ring surface 12 that are arranged opposite to each other. The rotating member 21 has a block-shaped structure and is connected to the outer ring surface 12. The rotating member 21 is movably arranged along the circumferential extension direction of the outer ring surface 12. This structural arrangement, with its ring-shaped fixing member 1 design, provides a larger contact area and a more uniform load distribution compared to fixing members 1 of other shapes. This significantly enhances the rigidity and torsional resistance of the entire support structure, ensuring stable operation of the compressor under high load conditions. The circumferential movability of the rotating member 21 along the outer ring surface 12 facilitates the movement of the connecting member 22 along the outer ring surface 12, allowing the connecting member 22 to rotate with the rotor 4. This limits the positional deviation of the rotor 4, maintains the stable operation of the rotor 4, and effectively extends the overall service life of the compressor.

[0038] Specifically, the rotating component 21 is detachably mounted on the fixed component 1. This allows for convenient replacement or adjustment of the rotating component 21 during compressor maintenance or performance upgrades without completely disassembling the entire shaft support structure. This simplifies the maintenance process, reduces maintenance costs, and improves equipment availability and reliability.

[0039] Specifically, the connector 22 is detachably mounted on the rotating component 21. This allows for easy replacement or adjustment of the connector 22 during compressor maintenance or performance upgrades without completely disassembling the entire shaft support structure. This simplifies the maintenance process, reduces maintenance costs, and improves equipment availability and reliability.

[0040] Specifically, the connector 22 is a rod-shaped structure, with one end connected to the rotor 4 and the other end connected to the rotating component 21. This structural design ensures a direct and stable connection between the rotor 4 and the rotating component 21. The rod-shaped connector 22 provides sufficient support while maintaining a simple connection, avoiding the additional weight and assembly difficulties that complex structures might bring, and improving the overall stability and energy transfer efficiency of the support structure.

[0041] In an embodiment not shown, the connector 22 is telescopically oriented. This telescopic design allows the support structure to automatically adjust its length according to changes in the internal load of the compressor or external conditions (such as thermal expansion and contraction due to temperature changes). This helps maintain the centered position of the rotor 4, ensuring the alignment accuracy of the shaft system and maintaining good operational stability even under dynamic or unsteady conditions.

[0042] In one embodiment, the fixing member 1 is a circular ring structure, and there are multiple connecting members 22, which are spaced apart along the circumferential direction of the fixing member 1. Specifically, the multiple connecting members 22 are evenly spaced along the circumferential direction of the fixing member 1. This structural arrangement, through the circumferential distribution of the multiple connecting members 22, achieves uniform distribution of the load on the rotor 4, reducing stress and deformation caused by localized load concentration. Simultaneously, the multi-point connection enhances the rigidity of the overall structure, helping to maintain the dynamic balance of the rotor 4 during compressor operation, further reducing vibration and noise levels, and improving the compressor's operating efficiency and user experience.

[0043] In an embodiment not shown, there are multiple rotating members 21, and each rotating member 21 is correspondingly arranged with multiple connecting members 22. This structural arrangement means that the shaft system is fixed by multiple independent support points, enhancing the stability and reliability of the entire system. The multi-point distributed support not only distributes the weight and axial force of the rotor 4 more evenly, but also effectively reduces the risk of overall structural instability caused by single-point failure, improving the compressor's operational safety under extreme conditions.

[0044] In one embodiment, there is one rotating member 21, and multiple connecting members 22 are fixedly mounted on the rotating member 21. This combination of a single rotating member and multiple connecting members simplifies the complexity of the support structure, reduces the number of parts and assembly points, thereby lowering manufacturing costs and assembly difficulty. Simultaneously, this design helps optimize the force transmission path, reduces energy loss, and improves compressor efficiency.

[0045] Specifically, the rotating component 21 is provided with a connecting hole 211 extending through the rotating component 21 along its height direction, and the other end of the connecting component 22 is inserted into the connecting hole 211. This structural arrangement ensures a stable connection between the connecting component 22 and the rotating component 21. By providing the connecting hole 211 on the rotating component 21, the other end of the connecting component 22 can be inserted to different depths, thereby allowing for adjustment of the relative position and connection strength between the connecting component 22 and the rotating component 21 to a certain extent. This design provides the ability to fine-tune the geometric relationship between the rotor 4 and other components of the shaft system during installation or maintenance to adapt to different compressor design requirements and optimize system performance.

[0046] Specifically, the other end of the connector 22 is threadedly connected to the rotating component 21. This structural arrangement, utilizing the self-locking and adjustability of the threaded connection, ensures precise alignment and a secure connection between the connector 22 and the rotating component 21. This connection method allows for fine-tuning of the insertion depth of the connector 22 during assembly to accommodate different installation requirements, while the tight fit of the threads effectively prevents loosening or disengagement, ensuring the reliability and safety of the system.

[0047] Specifically, the connector 22 includes a main body 221 and a limiting part 222. The limiting part 222 is connected to the end of the main body 221. The main body 221 extends along the height direction of the rotating member 21 and is inserted into and passes through the rotor 4. The outer edge of the limiting part 222 protrudes from the outer edge of the main body 221 to form a limiting surface 2221 at the connection between the limiting part 222 and the main body 221. The limiting surface 2221 abuts against the rotor 4. With this structural design, the limiting part 222 not only provides support but also effectively limits the axial displacement of the rotor 4, preventing excessive axial vibration of the rotor 4 from affecting the stable operation of the shaft system. Furthermore, the different functional division between the main body 221 and the limiting part 222 achieves structural optimization and cost control.

[0048] Specifically, the rotating component 21 has a connecting hole 211 extending through it along its height. The other end of the connecting component 22 is inserted into the connecting hole 211. The outer wall of the connecting component 22 has an outer helical structure, and the inner wall of the connecting hole 211 has an inner helical structure; the outer and inner helical structures are helically connected. This not only ensures a stable connection between the connecting component 22 and the rotating component 21 but also allows for adjustment of the insertion depth of the connecting component 22 within a certain range to accommodate different compressor design parameters or rotor sizes. The helical structure achieves a balance between connection strength and adjustment flexibility, contributing to optimized dynamic performance and long-term operational reliability of the shaft system.

[0049] Specifically, the rotating member 21 is provided with a connecting hole 211 that extends through the rotating member 21 along its height direction. The connecting member 22 includes a main body 221 and a limiting part 222. The limiting part 222 is connected to the end of the main body 221. The main body 221 extends along the height direction of the rotating member 21 and is inserted into the connecting hole 211. The main body 221 is used to be inserted into and through the rotor 4. The outer edge of the limiting part 222 protrudes from the outer edge of the main body 221 to form a limiting surface 2221 at the connection between the limiting part 222 and the main body 221. The limiting surface 2221 is used to abut against the rotor 4. With this structural arrangement, the combination of the limiting part 222 and the main body 221, and the abutment of the limiting surface 2221 against the rotor 4, provide precise axial positioning and support, limit the axial displacement of the rotor 4, and improve the overall stability of the shaft system. By inserting the main body 221 of the connector 22 into the connecting hole 211 of the rotating member 21, the connection structure is simplified while ensuring the strength and reliability of the connection. This design allows the connector 22 to be inserted or removed relatively easily, facilitating the disassembly and reinstallation of the shaft assembly during production assembly or maintenance.

[0050] Specifically, the rotating member 21 is provided with a connecting hole 211 that penetrates the rotating member 21 along its height direction. The connecting member 22 includes a main body 221 and a limiting part 222. The limiting part 222 is connected to the end of the main body 221. The main body 221 extends along the height direction of the rotating member 21 and is inserted into the connecting hole 211. The main body 221 is used to be inserted into and penetrate the rotor 4. The outer edge of the limiting part 222 protrudes from the outer edge of the main body 221 to form a limiting surface 2221 at the connection between the limiting part 222 and the main body 221. The limiting surface 2221 is used to abut against the rotor 4. The outer wall of the connecting member 22 is provided with an outer spiral structure, and the inner wall of the connecting hole 211 is provided with an inner spiral structure. The outer spiral structure and the inner spiral structure are spirally connected. With this structural design, the main body 221 of the connector 22 can be adjusted along the length of the connecting hole 211 via a threaded connection, thereby fine-tuning the relative position of the rotor 4 with other components of the shaft system to adapt to different compressor design requirements and optimize system performance. The threaded connection provides a robust mechanical bond while allowing for adjustment of the connection tightness within a certain range, which is crucial for maintaining precise alignment of the shaft system during compressor operation. Threaded connections offer higher structural rigidity than other forms of connection (such as sliding or snap-fit ​​connections), helping to reduce vibration and deformation of the shaft system during operation, thus improving the compressor's durability and long-term operational reliability.

[0051] like Figure 2 and Figure 3 As shown, Embodiment 2 of this utility model provides a shaft system structure, which includes the support structure provided in the above embodiments.

[0052] The shaft system structure provided in Embodiment 2 of this utility model, through the design of combining the fixed component 1 with the rotatable rotating component 2, effectively limits the radial and axial displacement of the rotor 4 during compressor operation, thereby significantly improving the stability of the shaft system and reducing mechanical damage caused by excessive shaft deflection. The fixed connection between the connecting component 22 and the rotor 4, and the rotatable engagement between the rotating component 21 and the fixed component 1, can disperse the stress generated by the unbalanced force when the rotor 4 is running at high speed, thereby maintaining the stable operation of the rotor 4, reducing the deflection change of the shaft system structure, and effectively extending the overall service life of the compressor. In this way, the optimized support structure design can reduce the occurrence of rotor swivel, avoid the additional resistance generated therefrom, thereby improving the operating efficiency and energy conversion efficiency of the compressor and reducing energy consumption. Therefore, the shaft system structure provided in this embodiment can solve the technical problem of increased shaft deflection during compressor operation in the prior art.

[0053] Specifically, the shaft system structure includes an upper bearing 3 and a rotor 4, with the upper bearing 3 located below the rotor 4. A fixing member 1 of the support structure is fitted onto the end of the upper bearing 3 closest to the rotor 4. This precise alignment of the fixing member 1 with the upper bearing 3 ensures accurate alignment between the shaft system components, which is crucial for the smooth operation and efficiency of the compressor.

[0054] Specifically, the fixing part 1 is interference-fitted or welded to the shaft diameter of the upper bearing 3. In this way, the fitting connection (interference fit or welding) between the fixing part 1 and the upper bearing 3 provides a high-strength connection, preventing displacement or loosening caused by vibration or external force during compressor operation, and ensuring long-term operational reliability.

[0055] Specifically, the shaft system includes a rotor 4, which has a mounting hole 41 extending along its height and penetrating through it. A connecting member 22 of the support structure is inserted into the mounting hole 41. This structural arrangement, with the connecting member 22 directly inserted into the mounting hole 41 of the rotor 4, achieves a direct force transmission path between the support structure and the rotor 4, improving force transmission efficiency and response speed. This direct connection method restricts the displacement of the rotor 4 in the height direction, helping to maintain the operational stability of the rotor 4 and reducing additional wear or damage to the shaft system caused by rotor 4 vibration. Furthermore, the insertion connection between the connecting member 22 and the rotor 4 is relatively simple, facilitating quick assembly and disassembly during maintenance or replacement of the rotor 4, reducing maintenance costs and downtime.

[0056] In one embodiment, the shaft system structure includes an upper bearing 3 and a rotor 4, with the upper bearing 3 located below the rotor 4. A fixing member 1 of the support structure is fitted onto the end of the upper bearing 3 near the rotor 4. The rotor 4 has a mounting hole 41 extending along its height and penetrating the rotor 4, and a connecting member 22 of the support structure is inserted into the mounting hole 41. This structural arrangement allows the shaft support structure to work more closely with the upper bearing 3 and rotor 4 of the compressor, forming a highly integrated and compact system. The stable connection between the fixing member 1 and the upper bearing 3, coupled with the precise assembly of the connecting member 22 and the rotor 4, jointly improves the stability of the shaft system during operation, reduces potential risks caused by component displacement or loosening, and enhances the reliability of the entire compressor system.

[0057] Specifically, the connector 22 is threaded into the mounting hole 41. This structural arrangement, utilizing the self-locking and adjustable nature of the threaded connection, ensures precise alignment and a secure connection between the connector 22 and the rotor 4. This connection method allows for fine-tuning of the insertion depth of the connector 22 during assembly to accommodate different installation requirements, while the tight fit of the threads effectively prevents loosening or disengagement, ensuring the reliability and safety of the system.

[0058] Embodiment 3 of this utility model provides a compressor, which includes the shaft system structure provided in the above embodiments.

[0059] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects: During the operation of the compressor, the rotation of the rotor 4 drives the rotation of the shaft system, and at the same time, the outer ring of the bearing is rotated synchronously through the long screws. Simultaneously, the mounting screws between the outer ring of the bearing and the rotor 4 can also limit the bending of the shaft system or the deviation of the shaft center trajectory, thereby avoiding excessive shaft deflection that could cause motor rubbing or excessive wear between the crankshaft 5 and the inner hole of the flange, thus improving the quality of the compressor.

[0060] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0061] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0062] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0063] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0064] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0065] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A support structure for supporting the rotor of a compressor, characterized in that, The support structure includes: A fixing member (1) is fixedly disposed on one side of the rotor; Rotating assembly (2) is rotatably arranged relative to the fixed member (1) according to a preset rotating axis; the rotating assembly (2) includes a rotating member (21) and a connecting member (22) connected to each other, the rotating member (21) is connected to the fixed member (1), and the connecting member (22) is used to fixally connect to the rotor to support the rotor.

2. The support structure according to claim 1, characterized in that, The fixing member (1) has a ring-shaped structure and is used to be sleeved on the crankshaft of the compressor and spaced apart from the crankshaft. The fixing member (1) has an inner ring surface (11) and an outer ring surface (12) that are arranged opposite to each other; wherein: The rotating component (21) has a ring-shaped structure and is sleeved on the fixed component (1). The rotating assembly (2) also includes a rolling component (23), which is rotatably disposed between the fixed component (1) and the rotating component (21); or, The rotating component (21) is a block structure. The rotating component (21) is connected to the outer ring surface (12). The rotating component (21) is movably arranged along the circumferential extension direction of the outer ring surface (12).

3. The support structure according to claim 1, characterized in that, The connector (22) is a rod-shaped structure. One end of the connector (22) is used to connect to the rotor, and the other end is connected to the rotating member (21).

4. The support structure according to claim 3, characterized in that, The fixing member (1) is a ring structure, and there are multiple connecting members (22), which are spaced apart along the circumferential direction of the fixing member (1).

5. The support structure according to claim 4, characterized in that, There are multiple rotating parts (21), and the multiple rotating parts (21) and the multiple connecting parts (22) are arranged in a one-to-one correspondence.

6. The support structure according to claim 4, characterized in that, There is one rotating component (21), and multiple connecting components (22) are fixedly mounted on the rotating component (21).

7. The support structure according to claim 3, characterized in that, The rotating member (21) is provided with a connecting hole (211) extending through the rotating member (21) along its height direction, and the other end of the connecting member (22) is used to be inserted into the connecting hole (211); and / or, The other end of the connector (22) is threadedly connected to the rotating member (21); and / or, The connector (22) includes a main body (221) and a limiting part (222). The limiting part (222) is connected to the end of the main body (221). The main body (221) extends along the height direction of the rotating member (21) and is used to be inserted into the rotor and penetrate the rotor. The outer edge of the limiting part (222) protrudes from the outer edge of the main body (221) to form a limiting surface (2221) at the connection between the limiting part (222) and the main body (221). The limiting surface (2221) is used to abut against the rotor.

8. A shaft system structure, characterized in that, Includes the support structure as described in any one of claims 1 to 7.

9. The shaft system structure according to claim 8, characterized in that, The shaft system includes an upper bearing (3) and a rotor (4), the upper bearing (3) being located below the rotor (4); wherein, the fixing member (1) of the support structure is sleeved on the end of the upper bearing (3) near the rotor (4); and / or, The shaft system includes a rotor (4), and the rotor (4) is provided with a mounting hole (41) extending along the height direction of the rotor (4) and penetrating the rotor (4). The connecting member (22) of the support structure is inserted into the mounting hole (41).

10. A compressor, characterized in that, Includes the shaft system structure described in claim 8 or 9.

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