A partition assembly, a pump body assembly and a compressor

Abstract

The present disclosure provides a partition assembly, a pump body assembly and a compressor. The partition assembly is disposed between a first cylinder and a second cylinder. The partition assembly includes a partition body, a limiting member and a floating member. The floating member can be limited by the limiting member and the partition body. The limiting member and the floating member are respectively located at the same axial end of the partition body. The axial side of the floating member opposite to the partition body is the first axial side, and the axial side of the limiting member opposite to the partition body is the second axial side. The first axial side can extend out of the second axial side, and the first axial side can be driven to cause the floating member to generate axial movement, radial movement and / or rotation. According to the present disclosure, when the roller is inclined, the partition can also be inclined to reduce the contact stress between the roller and the partition and reduce wear. Moreover, when the contact force is too large, the partition can also rotate, thereby further reducing the friction between the roller and the partition.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and particularly to a partition assembly, a pump body assembly and a compressor. Background Art

[0002] In a conventional double-cylinder compressor, when the compressor pump body is in gear, once the lower cylinder and the lower roller are determined, the clearance between the upper end surface of the lower roller and the lower end surface of the partition is determined. If this clearance is too large, leakage will increase; if it is too small, friction will be severe, increasing the friction power consumption. At the same time, the roller and the eccentric part of the crankshaft are in clearance fit. During actual operation of the roller, tilting will occur. Once the roller tilts, the clearance between the roller and the partition will be uneven, that is, the clearance on one side will increase and the clearance on the other side will decrease. The side with the increased clearance will increase leakage, and on the side with the small clearance, it is possible that the roller directly contacts the partition, increasing the contact stress between the partition and the roller, increasing wear, increasing power consumption, and reducing the reliability of the compressor.

[0003] Currently, common variable displacement compressors adopt the high-pressure variable displacement method. When the compressor operates in a single cylinder, the lower cylinder is in a low-pressure state and the outside is in a high-pressure state. The high-pressure gas will leak into the lower cylinder through the clearance between the roller and the partition, affecting the energy efficiency during single-cylinder operation of the compressor. Therefore, for a variable displacement compressor, during single-cylinder operation, the lower cylinder is at low pressure. Compared with a conventional double-cylinder roller compressor, the size of the clearance between the roller and the partition will more directly affect the energy efficiency during single-cylinder operation of the variable displacement compressor. Therefore, for a variable displacement compressor, one of the effective means to improve the energy efficiency during single-cylinder operation is to reduce the clearance between the roller and the partition and reduce leakage. However, if the clearance is too small, when the roller tilts or undergoes thermal expansion, the roller is likely to contact the partition, increasing the friction power consumption and at the same time affecting the reliability of the compressor and reducing the service life of the compressor.

[0004] Due to the technical problems in compressors with more than two cylinders in the prior art, such as large clearance between the roller and the partition resulting in poor sealing performance and large leakage, and small clearance between the roller and the partition resulting in large friction power consumption and large contact stress between the partition and the roller, the present disclosure has studied and designed a partition assembly, a pump body assembly and a compressor. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present disclosure is to overcome the defects in compressors with more than two cylinders in the prior art, where when the clearance between the roller and the partition is too small, or the roller tilts or undergoes thermal deformation, it will result in large friction power consumption and large contact stress between the partition and the roller, thereby providing a partition assembly, a pump body assembly and a compressor.

[0006] To solve the above problems, the present disclosure provides a partition assembly, wherein:

[0007] The partition assembly is arranged between the first cylinder and the second cylinder. The partition assembly includes a partition main body, a limiting member, and a floating member. The floating member can be limited by the limiting member and the partition main body. The limiting member and the floating member are respectively located at the same axial end of the partition main body. The axial side of the floating member opposite to the partition main body is the first axial side, and the axial side of the limiting member opposite to the partition main body is the second axial side. The first axial side can extend out of the second axial side, and the first axial side can be driven to cause the floating member to perform axial movement, radial movement, and / or rotation.

[0008] In some embodiments, the limiting member is fixedly connected to the partition main body. The floating member can be radially limited by the limiting member, and one axial end of the floating member can be axially limited by the limiting member, and the other axial end of the floating member can be axially limited by the partition main body.

[0009] In some embodiments, the floating member is located radially inside the limiting member.

[0010] In some embodiments, the partition main body is in the shape of an annular plate. The floating member includes a floating main body and a clamping protrusion. The floating member is also in the shape of an annular plate. The clamping protrusion is connected to the outer periphery of the floating main body in the radial direction and extends radially outward. The limiting member further includes a limiting main body and a groove. The limiting main body is also in the shape of an annular plate. The groove extends radially outward from the inner periphery of the limiting main body in the radial direction. The clamping protrusion can be clamped in the groove to axially limit and radially limit the floating member through the limiting member.

[0011] In some embodiments, the clamping protrusion is located at the axial end of the floating member that is in contact with the partition main body, and the groove is located at the axial end of the limiting member that is in contact with the partition main body; and / or,

[0012] The inner diameter of the partition main body is equal to the inner diameter of the floating member; the outer diameter of the partition main body is equal to the outer diameter of the limiting member.

[0013] In some embodiments, the outer diameter of the clamping protrusion is smaller than the outer diameter of the limiting member, and the inner diameter of the limiting main body is larger than the inner diameter of the floating main body.

[0014] In some embodiments, the outer diameter of the clamping protrusion is D2, the inner diameter of the limiting main body is D1, and the relationship between D2 and D1 satisfies: L0 = (D2 - D1) / 2 > 1 mm.

[0015] In some embodiments, the outer diameter of the clamping protrusion is D2, the aperture of the groove is D3, L = (D3 - D2) / 2, and L > 0;

[0016] The axial height of the clamping protrusion is H1, the axial height of the groove is H2, and the axial gap between the partition body and the floating member is H, where H = H2 - H1 > 0;

[0017] The inner diameter of the limiting body is D1, the outer diameter of the floating body is D, and L1 = (D1 - D) / 2 > 0.

[0018] The present disclosure also provides a pump body assembly, which includes the partition assembly described in any one of the preceding items, and includes a first cylinder, a second cylinder, a first roller, a second roller, and a crankshaft. The first roller is disposed in the first cylinder, the second roller is disposed in the second cylinder, and the partition assembly is located between the first cylinder and the second cylinder;

[0019] The first shaft side of the floating member can be in contact with the first cylinder, the first roller can move to be in contact with the floating member, and the floating member can be axially moved, radially moved, and / or rotated by the action of the first roller.

[0020] In some embodiments, the axial gap between the partition body and the floating member is H, and the axial gap between the first roller and the first cylinder is δ. H and δ satisfy: 0.5δ < H ≤ 1.5δ.

[0021] In some embodiments, when the floating member further includes a floating body and a clamping protrusion, and the limiting member further includes a limiting body and a groove:

[0022] The outer diameter of the clamping protrusion is D2, the aperture diameter of the groove is D3, L = (D3 - D2) / 2, the radial gap between the first roller and the crankshaft is L2, and L and L2 satisfy: L ≤ 1.5L2.

[0023] In some embodiments, when the floating member further includes a floating body and a clamping protrusion, and the limiting member further includes a limiting body and a groove:

[0024] The outer diameter of the clamping protrusion is D2, the aperture diameter of the groove is D3, L = (D3 - D2) / 2, the radial gap between the first roller and the crankshaft is L2, and the radial gap between the floating body and the limiting body is L1. L1, L, and L2 satisfy: L ≤ L1 ≤ 1.5L2.

[0025] In some embodiments, when the floating member further includes a floating body: the axial end face of the floating body is in contact with the axial end face of the first cylinder, the outer diameter of the floating body is D, and the inner diameter of the first cylinder is D0. D and D0 satisfy: D > D0.

[0026] The present disclosure also provides a compressor, which includes the pump body assembly described in any one of the preceding items.

[0027] The partition assembly, pump body assembly and compressor provided by the present disclosure have the following beneficial effects:

[0028] The present disclosure provides a partition assembly between the first cylinder and the second cylinder. The partition assembly includes a partition main body, a limiting member and a floating member. The partition main body is used to support and limit the limiting member and the floating member. The limiting member is used to limit the floating member, and the floating member can generate axial movement, radial movement and / or rotation under the action of the first roller. The axial clearance between the partition and the roller can be adjusted. When the roller tilts, the partition can also tilt, reducing the contact stress between the roller and the partition, reducing wear, and when the contact force is too large, the partition can also rotate, thereby further reducing the friction between the roller and the partition. When the axial clearance between the roller and the partition is too small and the pump body has poor suction, the friction pair heats up seriously, the thermal deformation of the roller increases, and the roller contacts the partition directly. In a conventional compressor, at this time, the friction force between the roller and the partition increases, and the wear is serious, affecting the reliability of the compressor. However, due to the present invention, the partition can move up and down, thereby avoiding the increase in the contact force between the roller and the partition due to thermal deformation, reducing wear and reducing power consumption.

[0029] Therefore, the axial clearance between the roller and the partition of the present disclosure is set to be smaller without increasing the friction power consumption between the partition and the roller; when the roller tilts or the roller undergoes thermal deformation, the contact stress between the roller and the partition can be effectively reduced, and the wear can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a cross-sectional view of the partition assembly of the present disclosure;

[0031] Figure 2a is Figure 1 a partial enlarged view of part A in

[0032] Figure 2b is Figure 1 a partial enlarged view of part B in

[0033] Figure 3 is a cross-sectional view of the pump body assembly of the present disclosure;

[0034] Figure 4a is Figure 3 a partial enlarged view of part D in

[0035] Figure 4b is Figure 3 a partial enlarged view of part F in

[0036] Figure 5 is an exploded structural view of the partition assembly of the present disclosure;

[0037] Figure 6 is a schematic structural diagram of the roller in a conventional state in the prior art;

[0038] Figure 7 is a schematic structural diagram of the roller in an inclined state in the prior art;

[0039] Figure 8 is a schematic structural diagram of the roller of the present disclosure in an inclined state.

[0040] The reference numerals are shown as:

[0041] 1, crankshaft; 2, upper flange; 3, second roller; 4, second cylinder; 5, partition assembly; 6, first roller; 7, first cylinder; 8, lower flange; 9, lower cover plate; 10, partition main body; 11, limiting member; 111, limiting main body; 112, groove; 12, floating member; 121, floating main body; 122, clamping protrusion. Detailed implementation manners

[0042] As Figures 1-8 shown, the present disclosure provides a partition assembly, wherein:

[0043] The partition assembly is arranged between the first cylinder 7 and the second cylinder 4. The partition assembly includes a partition main body 10, a limiting member 11 and a floating member 12. The floating member 12 can be limited by the limiting member 11 and the partition main body 10. The limiting member 11 and the floating member 12 are respectively located at the same axial end of the partition main body 10. The axial side of the floating member 12 opposite to the partition main body 10 is the first axial side, and the axial side of the limiting member 11 opposite to the partition main body 10 is the second axial side. The first axial side can extend out of the second axial side, and the first axial side can be driven to cause the floating member to generate axial movement, radial movement and / or rotation.

[0044] The present disclosure provides a partition assembly between a first cylinder and a second cylinder. The partition assembly includes a partition main body, a limiting member, and a floating member. The partition main body is used to support and limit the limiting member and the floating member. The limiting member is used to limit the floating member. The floating member can be axially moved, radially moved, and / or rotated under the action of a first roller. The axial clearance between the partition and the roller is adjustable. When the roller is tilted, the partition can also be tilted, reducing the contact stress between the roller and the partition, reducing wear. And when the contact force is too large, the partition can also rotate, thereby further reducing the friction between the roller and the partition. When the axial clearance between the roller and the partition is too small, when the pump body has poor air intake, the friction pair generates serious heat, the thermal deformation of the roller increases, and the roller is in direct contact with the partition. In a conventional compressor, at this time, the frictional force between the roller and the partition increases, and the wear is serious, affecting the reliability of the compressor. However, due to the present invention, the partition can move up and down, thus avoiding the increase in the contact force between the roller and the partition due to thermal deformation, reducing wear, and reducing power consumption.

[0045] The movement of the floating member depends on the state of the roller. If the roller is tilted or the roller undergoes thermal expansion and when the roller is tilted or thermally expanded to contact the floating member, due to the floating member having a certain degree of freedom, it will be lifted by the roller. At this time, the contact force between the roller and the partition will decrease.

[0046] 1. Refer to Figures 1-8 , the present invention provides a pump body assembly, which includes a crankshaft 1, an upper flange 2, a second roller 3, a second cylinder 4, a first roller 6, a first cylinder 7, a lower flange 8, a lower cover plate 9, and a partition assembly 5. The main difference between this pump body assembly and a conventional compressor pump body assembly lies in a combined partition (partition assembly 5), which is assembled between the upper and lower cylinders and divides the upper and lower cylinders into independent cavities. This combined partition assembly 5 is composed of a partition plate (partition main body 10), a limiting member 11, and a floating member 12. The partition plate (partition main body 10) is fixedly connected to the limiting member 11, and the floating member 12 is installed between the two. The floating member 12 has a clearance fit with the other two components and can move up and down, left and right, and can also rotate.

[0047] 2. The axial clearance H between the partition plate (partition main body 10) and the floating member 12 and the axial clearance δ between the lower roller and the lower cylinder satisfy: 0.5δ < H ≤ 1.5δ.

[0048] 3. The upper end face diameter D2 of the floating member 12 and the upper aperture diameter D3 of the limiting member 11, L = 1 / 2(D3 - D2), where L and the radial clearance L2 between the lower roller and the crankshaft satisfy: L ≤ 1.5L2.

[0049] 4. The radial clearance L1 between the lower part of the floating member 12 and the lower part of the limiting member 11 satisfies: L ≤ L1 ≤ 1.5L2.

[0050] 5. The lower end face of the floating member 12 is in contact with the upper end face of the lower cylinder. The diameter D of the lower end face of the floating member 12 and the inner diameter D0 of the lower cylinder satisfy: D > D0, which can reduce the leakage between the floating member and the cylinder end face and enhance the sealing performance.

[0051] 6. The diameter D2 of the upper end face of the floating member 12 and the inner diameter D1 of the lower part of the limiting member 11 satisfy:

[0052] 12(D2 - D1) > 1 mm, which can ensure the sufficient length of the clamping protrusion of the floating member and ensure its structural strength.

[0053] In some embodiments, the limiting member 11 is fixedly connected to the partition body 10. The floating member 12 can be radially limited by the limiting member 11, and one axial end of the floating member 12 can be axially limited by the limiting member 11, and the other axial end of the floating member 12 can be axially limited by the partition body 10. The fixed connection of the limiting member of the present disclosure to the partition body can form a complete whole. The limiting member can radially position the floating member and axially limit one end of the floating member, while the partition body can axially limit the other axial end of the floating member, so that the floating member will not escape from the space defined by the partition body and the limiting member when moving in the axial direction and the radial direction, ensuring the effective stress unloading effect on the cylinder roller, reducing the stress of the roller, and reducing friction.

[0054] In some embodiments, the floating member 12 is connected and arranged on the radial inner side of the limiting member 11. By arranging the floating member and the limiting member at the same axial end of the partition body, the present disclosure can utilize the partition body to limit the other axial end of the floating member and utilize the limiting member to limit the floating member in the radial direction.

[0055] In some embodiments, the partition main body 10 is in the shape of an annular plate. The floating member 12 further includes a floating main body 121 and a clamping protrusion 122. The floating member 12 is also in the shape of an annular plate. The clamping protrusion 122 is connected to the outer periphery of the floating main body 121 in the radial direction and extends radially outward. The limiting member 11 further includes a limiting main body 111 and a groove 112. The limiting main body 111 is also in the shape of an annular plate. The groove 112 extends radially outward from the inner periphery of the limiting main body 111 in the radial direction. The clamping protrusion 122 can be clamped in the groove 112 to axially limit and radially limit the floating member 12 through the limiting member 11. This is a further preferred structural form of the partition assembly of the present disclosure. The central hole of the partition main body in the shape of an annular plate can accommodate the crankshaft to pass through. The floating member includes a clamping protrusion and a floating main body. The clamping protrusion can be effectively inserted into the groove of the limiting member to form a radial limiting effect on the floating member. The clamping protrusion and the groove can also play an axial limiting role on the floating member. The central hole of the floating member can also accommodate the crankshaft to pass through.

[0056] Further, the floating member is preferably an elastic structure, and is axially clamped into the groove inside it from one axial side of the limiting member, thereby completing the assembly of the floating member.

[0057] In some embodiments, the clamping protrusion 122 is located at one axial end of the floating member 12 that is in contact with the partition main body 10, and the groove 112 is located at one axial end of the limiting member 11 that is in contact with the partition main body 10; and / or,

[0058] The inner diameter of the partition main body 10 is equal to the inner diameter of the floating member 12; the outer diameter of the partition main body 10 is equal to the outer diameter of the limiting member 11.

[0059] The present disclosure utilizes the clamping protrusion located at one axial end of the floating member that is in contact with the partition main body, so that the clamping protrusion is formed inside the floating member in the axial direction, and the groove is formed inside the limiting member in the axial direction, thereby enabling the groove to play a limiting role on the clamping protrusion in the axial direction; the inner periphery of the partition main body in the radial direction is preferably aligned with the inner periphery of the floating member in the radial direction to accommodate the smooth passage of the crankshaft; the outer periphery of the partition main body in the radial direction is preferably aligned with the outer periphery of the limiting member in the radial direction, which can enable the two to form an integral and complete structure.

[0060] In some embodiments, the outer diameter of the snap projection 122 is smaller than the outer diameter of the limiting member 11, and the inner diameter of the limiting main body 111 is larger than the inner diameter of the floating main body 121. In the present disclosure, the outer diameter of the snap projection 122 < the outer diameter of the limiting member 11 can ensure that the snap projection does not extend radially outside the limiting member, thereby effectively ensuring that the limiting member can play a role in limiting the radial direction of the snap projection; the inner diameter of the limiting main body 111 > the inner diameter of the floating main body 121 can ensure that the limiting main body does not exceed the inner diameter of the floating main body, so as to ensure that the floating member can be snapped into the groove and can be effectively removed through the floating main body inside the limiting main body, facilitating the installation and disassembly.

[0061] In some embodiments, the outer diameter of the snap projection 122 is D2, the inner diameter of the limiting main body 111 is D1, and L0 = (D2 - D1) / 2 > 1 mm is satisfied between D2 and D1.

[0062] To ensure the strength of the protruding part of the floating member 12, it is necessary to satisfy: L0 = 12(D2 - D1) > 1 mm.

[0063] In some embodiments, the outer diameter of the snap projection 122 is D2, the aperture diameter of the groove 112 is D3, L = 1 / 2(D3 - D2), and L > 0;

[0064] The axial height of the snap projection 122 is H1, the axial height of the groove 112 is H2, and the axial gap between the partition main body 10 and the floating member 12 is H, H = H2 - H1 > 0;

[0065] The inner diameter of the limiting main body 111 is D1, the outer diameter of the floating main body 121 is D, and L1 = 1 / 2(D1 - D) > 0.

[0066] The above-mentioned dimensional range can ensure clearance fit, so that the floating member 12 can move up and down, left and right, and can also rotate. When the roller is tilted and contacts the partition assembly 5, the floating member 12 can move upward and can tilt along with the roller, which can greatly reduce the contact stress when the roller is tilted and contacts the partition, reduce friction and wear, reduce power consumption. At the same time, the floating member 12 can also rotate, which can reduce the relative speed between the roller and the floating member 12, and can further reduce the friction power consumption and improve the service life of the compressor. The lower end surface of the floating member 12 is matched with the upper end surface of the lower cylinder 7, and the two end surfaces are in contact. The diameter of the lower end surface of the floating member 12 is larger than the inner diameter of the lower cylinder, that is, ΦD is larger than the inner diameter of the lower cylinder.

[0067] When the variable displacement compressor operates with a single cylinder, the upper end face of the floating part is high-pressure gas, and the lower end face is low-pressure gas. Moreover, due to the action of gravity on the floating part, the lower end face of the floating part will fit with the upper end face of the lower cylinder, ensuring end face sealing and reducing leakage.

[0068] The large diameter is to prevent leakage. Because if the diameter is smaller than the inner diameter of the lower cylinder, as shown in the figure, at this time, the leakage channel formed by the fitting clearance is directly connected to the lower cylinder, which will cause the high-pressure gas to leak more smoothly into the lower cylinder. If the diameter is larger than the inner diameter of the lower cylinder, an end face seal will be formed between the floating part and the upper end face of the lower cylinder, more effectively reducing leakage.

[0069] The present disclosure also provides a pump body assembly, which includes the partition assembly 5 described in any one of the preceding items, and includes a first cylinder 7, a second cylinder 4, a first roller 6, a second roller 3, and a crankshaft 1. The first roller 6 is sleeved in the first cylinder 7, the second roller 3 is sleeved in the second cylinder 4, and the partition assembly 5 is located between the first cylinder 7 and the second cylinder 4;

[0070] The first shaft side of the floating part 12 can be connected to the first cylinder 7, the first roller 6 can move to be connected to the floating part 12, and the floating part 12 can be axially moved, radially moved, and / or rotated under the action of the first roller 6.

[0071] In some embodiments, the axial gap between the partition main body 10 and the floating part 12 is H, and the axial gap between the first roller 6 and the first cylinder 7 is δ. H and δ satisfy: 0.5δ < H ≤ 1.5δ.

[0072] Since the floating part 12 has a clearance fit with the other two components, the high-pressure gas will leak through the fitting clearance between the floating part 12 and the other two components. The fitting clearance needs to meet certain conditions. The range of this clearance is mainly to ensure that when the roller has the maximum inclination or thermal expansion, the floating part can still have a certain degree of freedom under such circumstances. At the same time, it is also to minimize the excessive clearance (leakage channel) between the floating part and the partition flat plate, resulting in high-pressure gas entering the lower cylinder.

[0073] In some embodiments, when the floating part 12 further includes a floating main body 121 and a clamping protrusion 122, and the limiting part 11 further includes a limiting main body 111 and a groove 112:

[0074] The outer diameter of the clamping protrusion 122 is D2, the aperture diameter of the groove 112 is D3, L = 1 / 2(D3 - D2), the radial clearance between the first roller 6 and the crankshaft 1 is L2, and L and L2 satisfy: L ≤ 1.5L2. This clearance range can meet the requirement that when the roller undergoes maximum inclination or thermal expansion, the floating member can still have a certain degree of freedom under such circumstances. At the same time, it is also to minimize the excessive clearance (leakage channel) between the floating member and the partition plate flat, which may cause high-pressure gas to enter the lower cylinder.

[0075] In some embodiments, when the floating member 12 further includes a floating main body 121 and a clamping protrusion 122, and the limiting member 11 further includes a limiting main body 111 and a groove 112:

[0076] The outer diameter of the clamping protrusion 122 is D2, the aperture diameter of the groove 112 is D3, L = 1 / 2(D3 - D2), the radial clearance between the first roller 6 and the crankshaft 1 is L2, and the radial clearance between the floating main body 121 and the limiting main body 111 is L1. L1, L, and L2 satisfy: L ≤ L1 ≤ 1.5L2. This clearance range can also meet the requirement that when the roller undergoes maximum inclination or thermal expansion, the floating member can still have a certain degree of freedom under such circumstances. At the same time, it is also to minimize the excessive clearance (leakage channel) between the floating member and the partition plate flat, which may cause high-pressure gas to enter the lower cylinder.

[0077] In some embodiments, when the floating member 12 further includes a floating main body 121: The axial end face of the floating main body 121 is in contact with the axial end face of the first cylinder 7. The outer diameter of the floating main body 121 is D, and the inner diameter of the first cylinder 7 is D0. D and D0 satisfy: D > D0.

[0078] When the variable displacement compressor operates with a single cylinder, the upper end face of the floating member is high-pressure gas, and the lower end face is low-pressure gas. Due to the action of gravity on the floating member, the lower end face of the floating member will be in contact with the upper end face of the lower cylinder, ensuring end face sealing and reducing leakage. The large diameter is to prevent leakage. Because if the diameter is smaller than the inner diameter of the lower cylinder, as shown in the figure, at this time, the leakage channel formed by the mating clearance is directly connected to the lower cylinder, which will cause the high-pressure gas to leak more smoothly into the lower cylinder. If the diameter is larger than the inner diameter of the lower cylinder, an end face seal will be formed between the floating member and the upper end face of the lower cylinder, more effectively reducing leakage.

[0079] The present disclosure also provides a compressor, which includes the pump body assembly described in any one of the preceding items.

[0080] The above are only the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present disclosure shall be included within the protection scope of the present disclosure. The above is only the preferred implementation manner of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present disclosure, several improvements and variations can still be made, and these improvements and variations should also be regarded as within the protection scope of the present disclosure.

Claims

1. A partition assembly, characterized in that: The partition assembly is arranged between a first cylinder (7) and a second cylinder (4). The partition assembly includes a partition main body (10), a limiting member (11) and a floating member (12). The floating member (12) can be limited by the limiting member (11) and the partition main body (10). The limiting member (11) and the floating member (12) are respectively located at the same axial end of the partition main body (10). The axial side of the floating member (12) opposite to the partition main body (10) is the first axial side, and the axial side of the limiting member (11) opposite to the partition main body (10) is the second axial side. The first axial side can extend out of the second axial side, and the first axial side can be driven to cause the floating member to generate axial movement, radial movement and / or rotation; The limiting member (11) is fixedly connected to the partition main body (10). The partition main body (10) is in a circular ring plate structure. The floating member (12) includes a floating main body (121) and a clamping protrusion (122). The floating member (12) is also in a circular ring plate structure. The clamping protrusion (122) is connected to the outer periphery of the floating main body (121) in the radial direction and extends radially outward. The limiting member (11) further includes a limiting main body (111) and a groove (112). The limiting main body (111) is also in a circular ring plate structure. The groove (112) extends radially outward from the inner periphery of the limiting main body (111) in the radial direction; the clamping protrusion (122) can be clamped in the groove (112) to axially limit and radially limit the floating member (12) through the limiting member (11).

2. The partition assembly according to claim 1, characterized in that: The floating member (12) is located radially inside the limiting member (11).

3. The partition assembly according to claim 1, characterized in that: The clamping protrusion (122) is located at the axial end of the floating member (12) connected to the partition main body (10), and the groove (112) is located at the axial end of the limiting member (11) connected to the partition main body (10); and / or, The inner diameter of the partition main body (10) is equal to the inner diameter of the floating member (12); the outer diameter of the partition main body (10) is equal to the outer diameter of the limiting member (11).

4. The partition assembly according to claim 1, characterized in that: The outer diameter of the clamping protrusion (122) is smaller than the outer diameter of the limiting member (11), and the inner diameter of the limiting main body (111) is larger than the inner diameter of the floating main body (121).

5. The partition assembly according to any one of claims 1-4, characterized in that: The outer diameter of the clamping protrusion (122) is D2, the inner diameter of the limiting main body (111) is D1, and the following is satisfied between D2 and D1: L0 = (D2 - D1) / 2 > 1 mm.

6. The partition assembly according to any one of claims 1-4, characterized in that: The outer diameter of the clamping projection (122) is D2, the aperture diameter of the groove (112) is D3, L = (D3 - D2) / 2, and L > 0; The axial height of the clamping projection (122) is H1, the axial height of the groove (112) is H2, and the axial clearance between the partition body (10) and the floating member (12) is H, H = H2 - H1 > 0; The inner diameter of the limiting body (111) is D1, the outer diameter of the floating body (121) is D, L1 = (D1 - D) / 2 > 0.

7. A pump body assembly, characterized in that: Comprising the partition assembly (5) according to any one of claims 1 - 6, including a first cylinder (7), a second cylinder (4), a first roller (6), a second roller (3), and a crankshaft (1), the first roller (6) is disposed in the first cylinder (7), the second roller (3) is disposed in the second cylinder (4), and the partition assembly (5) is located between the first cylinder (7) and the second cylinder (4); The first shaft side of the floating member (12) can be in contact with the first cylinder (7), the first roller (6) can move to be in contact with the floating member (12), and the floating member (12) can be axially moved, radially moved, and / or rotated under the action of the first roller (6).

8. The pump body assembly according to claim 7, wherein: The axial clearance between the partition body (10) and the floating member (12) is H, the axial clearance between the first roller (6) and the first cylinder (7) is δ, and the relationship between H and δ satisfies: 0.5δ < H ≤ 1.5δ.

9. The pump body assembly according to claim 7, wherein: When the floating member (12) further includes a floating body (121) and a clamping projection (122), and the limiting member (11) further includes a limiting body (111) and a groove (112): The outer diameter of the clamping projection (122) is D2, the aperture diameter of the groove (112) is D3, L = (D3 - D2) / 2, the radial clearance between the first roller (6) and the crankshaft (1) is L2, and the relationship between L and L2 satisfies: L ≤ 1.5L2.

10. The pump body assembly according to claim 7, wherein: When the floating member (12) further includes a floating body (121) and a clamping projection (122), and the limiting member (11) further includes a limiting body (111) and a groove (112): The outer diameter of the clamping projection (122) is D2, the aperture diameter of the groove (112) is D3, L = (D3 - D2) / 2, the radial clearance between the first roller (6) and the crankshaft (1) is L2, the radial clearance between the floating body (121) and the limiting body (111) is L1, and the relationship between L1, L, and L2 satisfies: L ≤ L1 ≤ 1.5L2.

11. The pump body assembly according to claim 7, wherein: When the floating member (12) further includes a floating body (121): the axial end face of the floating body (121) is in contact with the axial end face of the first cylinder (7), the outer diameter of the floating body (121) is D, the inner diameter of the first cylinder (7) is D0, and D and D0 satisfy: D > D0.

12. A compressor, characterized in that: Comprising the pump body assembly according to any one of claims 7-11.

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