A cylinder assembly, compressor pump body, rotary compressor and air conditioner

Abstract

The utility model belongs to the technical field of rotor compressor, disclose a cylinder subassembly, compressor pump body, rotor compressor and air conditioner, including cylinder body, the cylinder wall of cylinder body is provided with the spring hole and the knife mark hole along the radial direction on slide vane groove, slide vane groove includes the first groove section and the second groove section that link in order; The starting point of first groove section is the inner wall of working chamber of cylinder body, and the endpoint of first groove section is the hole bottom tip portion of spring hole; The starting point of second groove section is the hole bottom tip portion of spring hole, and the endpoint of second groove section is the through part of slide vane groove and knife mark hole; The second groove section is wedge groove, and the big end of second groove section is through with knife mark hole, and the small end of second groove wall is through with first groove section; The utility model can avoid the movement track of slide vane at the cross line of the groove wall of slide vane groove and the interpenetration of spring hole, eliminates the abnormal wear of slide vane, and then improves the performance of compressor, and reduces the noise generation of compressor operation process, improves the overall adaptability and overall service life of compressor.

Description

Technical Field

[0001] This utility model belongs to the field of rotary compressor technology, and specifically relates to a cylinder assembly, compressor pump body, rotary compressor and air conditioner. Background Technology

[0002] Rotary compressors are a common type of compression equipment widely used in many fields such as refrigeration and air conditioning. As the core component, the stability and reliability of its performance directly affect the overall operation of the compressor. During the operation of the rotary compressor core, the vanes reciprocate along the vane groove and achieve the gas compression process through cooperation with the rotor.

[0003] However, since spring holes are usually required on both sides of the vane slot to provide elastic support for the vane, burrs inevitably occur at the intersection of the vane slot wall and the spring hole during mass production due to limitations in processing technology and tool precision. During the reciprocating motion of the vane, its side surface will frequently come into contact with and rub against the burrs in the vane slot. Abnormal friction will lead to abnormal wear on the side surface of the vane, causing the clearance between the vane and the vane slot to gradually increase. This will increase the amount of gas leakage inside the compressor, reducing the compressor's compression efficiency and performance. In addition, the changes in friction caused by abnormal wear and the presence of wear particles will cause abnormal noise during compressor operation, affecting the normal operating environment of the equipment and potentially damaging other related components, thus shortening the overall service life of the compressor. Utility Model Content

[0004] In view of the technical problems existing in the prior art, this utility model provides a cylinder assembly, a compressor pump body, a rotary compressor and an air conditioner, to solve the technical problem that burrs are inevitably generated at the intersection of the groove wall of the vane groove and the spring hole due to the limitations of processing technology and tool precision, resulting in abnormal wear on the side of the vane.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a cylinder assembly, including a cylinder body, wherein a sliding vane groove, a spring hole and a cutter hole are provided radially on the cylinder wall of the cylinder body; The sliding groove includes a first groove segment and a second groove segment connected in sequence; The starting point of the first groove segment is the inner wall of the working chamber of the cylinder body, and the ending point of the first groove segment is the tip of the bottom of the spring hole. The starting point of the second groove segment is the tip of the bottom of the spring hole, and the ending point of the second groove segment is the part where the sliding plate groove and the drain hole pass through. The second groove is a wedge-shaped groove, with the large end of the second groove communicating with the drain hole and the small end of the second groove wall communicating with the first groove.

[0006] Furthermore, the first groove segment is a straight groove.

[0007] Furthermore, the distance L1 between the large end wall of the second groove segment and the groove wall of the first groove segment is not less than 0.05 mm.

[0008] This utility model also provides a cylinder assembly, including a cylinder body, wherein a sliding vane groove, a spring hole and a cutter hole are provided radially on the cylinder wall of the cylinder body; The sliding groove includes a first groove segment and a second groove segment connected in sequence; The starting point of the first groove segment is the inner wall of the working chamber of the cylinder body, and the ending point of the first groove segment is the tip of the bottom of the spring hole. The starting point of the second groove segment is the tip of the bottom of the spring hole, and the ending point of the second groove segment is the part where the sliding plate groove and the drain hole pass through. The connection between the wall of the second groove segment and the wall of the first groove segment forms a stepped structure.

[0009] Furthermore, both the first and second groove segments are straight grooves, and the width of the second groove segment is greater than the width of the first groove segment.

[0010] Furthermore, the distance L2 between the wall of the second groove segment and the wall of the first groove segment is not less than 0.05 mm.

[0011] Furthermore, it also includes a slider and an elastic element; the slider is disposed in the slider groove, and the elastic element is disposed in the spring hole; wherein, the elastic element is disposed in abutment with the slider.

[0012] This utility model also provides a compressor pump body, including the aforementioned cylinder assembly.

[0013] This utility model also provides a rotary compressor, including the compressor pump body.

[0014] This utility model also provides an air conditioner, including the aforementioned rotary compressor.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The cylinder assembly provided by this utility model, by designing the second groove section as a wedge-shaped groove or designing the connection between the second groove section and the first groove section as a stepped structure, ensures that the intersection line between the groove wall of the vane groove and the spring hole avoids the movement trajectory of the vane, eliminating abnormal wear of the vane, thereby improving the performance of the compressor, reducing the noise generated during the operation of the compressor, and improving the overall adaptability and service life of the compressor; the structure is simple, requires no change to the existing processing technology, is easy to manufacture, and is suitable for cylinder structures made of cast iron or powder metallurgy materials.

[0016] The compressor pump body, rotary compressor, and air conditioner provided by this utility model possess all the advantages of the aforementioned cylinder assembly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial structural schematic diagram of the cylinder assembly provided in Example 1; Figure 2 This is a partial structural schematic diagram of the cylinder assembly provided in Example 2.

[0019] Among them, 1 is the cylinder body; 11 is the sliding vane groove; 12 is the spring hole; 13 is the knife hole; 111 is the first groove section; 112 is the second groove section; 113 is the stepped structure; 121 is the bottom tip of the hole. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] This utility model provides a cylinder assembly, including a cylinder body 1. The cylinder body 1 has a radially arranged sliding vane groove 11, a spring hole 12, and a cutter hole 13 on its cylinder wall. The sliding vane groove 11 includes a first groove segment 111 and a second groove segment 112 connected sequentially. The starting point of the first groove segment 111 is the inner wall of the working chamber of the cylinder body 1, and the ending point of the first groove segment 111 is the pointed bottom 121 of the spring hole 12. The starting point of the second groove segment 112 is the pointed bottom 121 of the spring hole 12, and the ending point of the second groove segment 112 is the point where the sliding vane groove 11 and the cutter hole 13 communicate. The second groove segment 112 is a wedge-shaped groove, with its larger end communicating with the cutter hole 13, and its smaller end communicating with the first groove segment 111.

[0022] Optionally, a stepped structure 113 is formed at the connection between the wall of the second groove segment 112 and the wall of the first groove segment 111.

[0023] In the above embodiments, by designing the slide groove to include a first groove segment and a second groove segment connected in sequence, and designing the second groove segment as a wedge-shaped groove, or forming a stepped structure at the connection between the second groove segment and the groove wall of the first groove segment, the movement trajectory of the slide avoids the intersection line between the spring hole and the side of the slide groove; specifically, the first groove segment extends from the inner wall of the working chamber of the cylinder body to the bottom tip of the spring hole, and the second groove segment extends from the bottom tip of the spring hole to the connection point between the slide groove and the drain hole, and the second groove segment is wedge-shaped, with the large end communicating with the drain hole and the small end communicating with the first groove segment, so that the slide no longer interacts with the existing groove during movement. The contact point at the intersection of the burrs effectively prevents abnormal wear on the side of the vane caused by burrs, extending the service life of the vane and reducing the risk of compressor failure due to vane wear. Furthermore, eliminating abnormal vane wear ensures a good fit between the vane and the cylinder, enabling the compressor to operate stably and efficiently, maintaining a normal compression ratio and discharge volume, thereby improving compressor performance, efficiency, and reliability. In addition, eliminating abnormal vane wear reduces abnormal friction between the vane and the cylinder, lowering the noise generated during compressor operation.

[0024] The following detailed description, using specific embodiments, further explains the coal mill outlet temperature protection device for thermal power plants provided by this utility model: Example 1 As attached Figure 1 As shown, this embodiment 1 provides a cylinder assembly, including a cylinder body 1; the cylinder body 1 has a working chamber and a sliding vane groove 11 communicating with the working chamber; a sliding vane is provided in the sliding vane groove, and the sliding vane is used to maintain contact with a roller or piston provided in the working chamber so as to reciprocate along the sliding vane groove.

[0025] Specifically, the sliding vane groove 11 is disposed on the cylinder wall of the cylinder body 1, one end of the sliding vane groove 11 is in communication with the inner wall of the working chamber; the other end of the sliding vane groove 11 extends radially toward the outer wall of the cylinder body 1.

[0026] A spring hole 12 is also provided on the cylinder wall of the cylinder body 1. The spring hole 12 is formed in the vane groove 11 and extends radially along the cylinder body 1. An elastic element is provided in the spring hole 12. One end of the elastic element abuts against the inner wall of the compressor housing and the other end abuts against the vane. The elastic element is used to apply a clamping force to the vane so that the vane keeps in contact with the roller or piston.

[0027] The cylinder body 1 is also provided with a milling hole 13 on its cylinder wall. The milling hole 13 is located on the outer wall surface of the cylinder body 1, that is, on the side away from the working chamber. The milling hole 13 communicates with the extension end of the sliding vane groove 11. The milling hole 13 is used to realize the milling of the sliding vane groove 11, and the diameter of the milling hole 13 is larger than the width of the sliding vane groove 11.

[0028] In this embodiment 1, the sliding vane groove 11 includes a first groove segment 111 and a second groove segment 112 connected in sequence; wherein, the first groove segment 111 is disposed on the side closer to the working cavity, and the second groove segment 112 is disposed on the side away from the working cavity; specifically, the starting point of the first groove segment 111 is the inner wall of the working cavity of the cylinder body 1, and the ending point of the first groove segment 111 is the bottom tip 121 of the spring hole 12; the starting point of the second groove segment 112 is the bottom tip 121 of the spring hole 12, and the ending point of the second groove segment 112 is the through part of the sliding vane groove 11 and the drain hole 13.

[0029] The first groove segment 111 is a straight groove; specifically, the first groove segment 111 has a first groove wall and a second groove wall that are opposite each other and are arranged parallel to each other.

[0030] The second groove segment 112 is a wedge-shaped groove. The larger end of the second groove segment 112 communicates with the drain hole 13, and the smaller end of the second groove wall 112 communicates with the first groove segment 111. Specifically, the second groove segment 112 has a third groove wall and a fourth groove wall that are opposite each other and form a wedge-shaped structure. Near the drain hole 13, the distance between the third groove wall and the fourth groove wall matches the diameter of the drain hole 13. Near the first groove segment 112, the distance between the third groove wall and the fourth groove wall is equal to the distance between the first groove wall and the second groove wall in the first groove segment 111. Preferably, the distance L1 between the larger end groove wall of the second groove segment 112 and the groove wall of the first groove segment 111 is not less than 0.05 mm.

[0031] When the compressor is working, the vane groove 11 is designed as a first groove segment 111 and a second groove segment 112 connected in sequence. The first groove segment 111 starts from the inner wall of the working chamber of the cylinder body 1 and extends to the tip of the bottom of the spring hole 12, ensuring that the vane can smoothly enter the vane groove 11 from the inner wall of the working chamber in the initial stage and smoothly transition to the second groove segment 112. The second groove segment 112 is designed as a wedge-shaped groove, with the large end of the wedge-shaped groove communicating with the knife hole 13 and the small end communicating with the first groove segment 111. The wedge-shaped structure design causes the vane to gradually move away from the intersection line of the spring hole 12 and the groove wall of the vane groove during the movement. Specifically, when the vane enters the second groove segment 112 from the first groove segment 111, the movement trajectory of the vane will shift away from the intersection line due to the gradually widening wedge structure of the second groove segment 112, ensuring that the vane will not come into contact with the burrs at the intersection line during the movement, thereby avoiding abnormal wear.

[0032] Example 2 As attached Figure 2 As shown, this embodiment 2 provides a cylinder assembly, including a cylinder body 1; the cylinder body 1 has a working chamber and a sliding vane groove 11 communicating with the working chamber; a sliding vane is provided in the sliding vane groove, and the sliding vane is used to maintain contact with a roller or piston provided in the working chamber so as to reciprocate along the sliding vane groove.

[0033] Specifically, the sliding vane groove 11 is disposed on the cylinder wall of the cylinder body 1, one end of the sliding vane groove 11 is in communication with the inner wall of the working chamber; the other end of the sliding vane groove 11 extends radially toward the outer wall of the cylinder body 1.

[0034] A spring hole 12 is also provided on the cylinder wall of the cylinder body 1. The spring hole 12 is formed in the vane groove 11 and extends radially along the cylinder body 1. An elastic element is provided in the spring hole 12. One end of the elastic element abuts against the inner wall of the compressor housing and the other end abuts against the vane. The elastic element is used to apply a clamping force to the vane so that the vane keeps in contact with the roller or piston.

[0035] The cylinder body 1 is also provided with a milling hole 13 on its cylinder wall. The milling hole 13 is located on the outer wall surface of the cylinder body 1, that is, on the side away from the working chamber. The milling hole 13 communicates with the extension end of the sliding vane groove 11. The milling hole 13 is used to realize the milling of the sliding vane groove 11, and the diameter of the milling hole 13 is larger than the width of the sliding vane groove 11.

[0036] In this embodiment 1, the sliding vane groove 11 includes a first groove segment 111 and a second groove segment 112 connected in sequence; wherein, the first groove segment 111 is disposed on the side closer to the working cavity, and the second groove segment 112 is disposed on the side away from the working cavity; specifically, the starting point of the first groove segment 111 is the inner wall of the working cavity of the cylinder body 1, and the ending point of the first groove segment 111 is the bottom tip 121 of the spring hole 12; the starting point of the second groove segment 112 is the bottom tip 121 of the spring hole 12, and the ending point of the second groove segment 112 is the through part of the sliding vane groove 11 and the drain hole 13.

[0037] Both the first groove segment 111 and the second groove segment 112 are straight grooves. The groove wall of the second groove segment 112 and the groove wall of the first groove segment 111 form a stepped structure 113 at the connection. The groove width of the second groove segment 112 is greater than the groove width of the first groove segment 111. Preferably, the distance L2 between the groove wall of the second groove segment 112 and the groove wall of the first groove segment 111 is not less than 0.05mm.

[0038] Specifically, the first groove segment 111 has a first groove wall and a second groove wall that are opposite each other and are arranged parallel to each other; the second groove segment 112 has a third groove wall and a fourth groove wall that are opposite each other and are parallel to each other; wherein, the distance between the first groove wall and the second groove wall is greater than the distance between the third groove wall and the fourth groove wall; one side of the step structure 113 is connected to the first groove wall or the second groove wall, and the other side of the step structure 113 is connected to the third groove wall or the fourth groove wall.

[0039] When the compressor is working, the vane groove 11 is designed as a first groove segment 111 and a second groove segment 112 connected in sequence. The first groove segment 111 starts from the inner wall of the working chamber of the cylinder body 1 and extends to the tip of the bottom of the spring hole 12, ensuring that the vane can smoothly enter the vane groove 11 from the inner wall of the working chamber in the initial stage and smoothly transition to the second groove segment 112. Both the first groove segment 111 and the second groove segment 112 are designed as straight grooves, and the groove width of the second groove segment 112 is greater than that of the first groove segment 111. The groove width of 11 ensures that the slider moves away from the intersection line between the spring hole 12 and the groove wall of the slider groove during movement. Specifically, when the slider enters the second groove section 112 from the first groove section 111, since the groove width of the second groove section 112 is greater than the groove width of the first groove section 111, the movement trajectory of the slider will shift away from the intersection line between the spring hole 12 and the groove wall of the slider groove. This ensures that the slider will not come into contact with the burrs at the intersection line during movement, thereby avoiding abnormal wear.

[0040] Example 3 This embodiment 3 provides a compressor pump body, which includes a main bearing, a secondary bearing, a rotor piston, a crankshaft, and a cylinder assembly.

[0041] The main bearing and the auxiliary bearing are respectively disposed on both sides of the cylinder assembly, and the cylinder assembly adopts the cylinder assembly described in Embodiment 1 or Embodiment 2 above; the rotor piston is disposed inside the cylinder; the auxiliary bearing is fitted with the short shaft diameter of the crankshaft, the main bearing is fitted with the long shaft diameter of the crankshaft, and the rotor piston is fitted with the eccentric shaft diameter of the crankshaft; wherein, the short shaft diameter, eccentric shaft diameter, and long shaft diameter of the crankshaft are connected in sequence.

[0042] It should be noted that the assembly principle and process between the cylinder assembly and the main bearing, auxiliary bearing, rotor piston, and crankshaft are similar to those of existing compressor pump bodies, and will not be repeated here.

[0043] Example 4 This embodiment 4 provides a rotary compressor, including a pump body, a drive motor and a housing; the pump body adopts the compressor pump body described in embodiment 3 above.

[0044] Example 5 This embodiment 5 provides an air conditioner, including a compressor; the compressor is a rotary compressor as described in embodiment 4 above.

[0045] The cylinder assembly described in this utility model designs the vane groove as a first groove segment and a second groove segment connected in sequence. The second groove segment is designed as a wedge-shaped groove or the groove wall of the second groove segment is connected to the groove wall of the first groove segment to form a stepped structure. This allows the vane movement trajectory to avoid the intersection of the spring hole and the vane side. This effectively prevents abnormal wear on the vane side caused by burrs at the intersection of the vane groove side and the spring hole, thus avoiding performance degradation and abnormal noise of the compressor due to abnormal wear. This improves compressor performance, reduces noise, and enhances the overall adaptability of the compressor.

[0046] In this invention, the contour of the sliding groove is processed by broaching, which broaches the tip of the bottom of the spring hole to the part where the sliding groove and the drain hole pass through into a wedge-shaped groove structure, or forms a stepped structure with the first groove section. The processing is simple, the structure is simple, and the production line does not need any changes.

[0047] The above embodiments are merely one of the implementation methods to achieve the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions and other implementation methods that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model.

Claims

1. A cylinder assembly, characterized in that, Includes a cylinder body (1), on which a sliding vane groove (11), a spring hole (12) and a drain hole (13) are provided radially on the cylinder wall. The sliding groove (11) includes a first groove segment (111) and a second groove segment (112) connected in sequence. The starting point of the first groove segment (111) is the inner wall of the working chamber of the cylinder body (1), and the ending point of the first groove segment (111) is the tip (121) of the bottom of the spring hole (12). The starting point of the second groove segment (112) is the tip (121) of the bottom of the spring hole (12), and the ending point of the second groove segment (112) is the through part of the sliding plate groove (11) and the drain hole (13); The second groove segment (112) is a wedge-shaped groove. The large end of the second groove segment (112) is connected to the drain hole (13), and the small end of the second groove wall (112) is connected to the first groove segment (11).

2. A cylinder assembly according to claim 1, characterized in that, The first groove segment (111) is a straight groove.

3. A cylinder assembly according to claim 1, characterized in that, The distance L1 between the large end wall of the second groove segment (112) and the groove wall of the first groove segment (111) is not less than 0.05mm.

4. A cylinder assembly, characterized in that, Includes a cylinder body (1), on which a sliding vane groove (11), a spring hole (12) and a drain hole (13) are provided radially on the cylinder wall. The sliding groove (11) includes a first groove segment (111) and a second groove segment (112) connected in sequence. The starting point of the first groove segment (111) is the inner wall of the working chamber of the cylinder body (1), and the ending point of the first groove segment (111) is the tip (121) of the bottom of the spring hole (12). The starting point of the second groove segment (112) is the tip (121) of the bottom of the spring hole (12), and the ending point of the second groove segment (112) is the through part of the sliding plate groove (11) and the drain hole (13); The groove wall of the second groove segment (112) forms a stepped structure (113) at the connection between it and the groove wall of the first groove segment (111).

5. A cylinder assembly according to claim 4, characterized in that, Both the first groove segment (111) and the second groove segment (112) are straight grooves, and the groove width of the second groove segment (112) is greater than the groove width of the first groove segment (111).

6. A cylinder assembly according to claim 5, characterized in that, The distance L2 between the wall of the second groove segment (112) and the wall of the first groove segment (111) is not less than 0.05 mm.

7. A cylinder assembly according to any one of claims 1-6, characterized in that, It also includes a slider and an elastic element; the slider is disposed in the slider groove (11), and the elastic element is disposed in the spring hole (12); wherein the elastic element is disposed in contact with the slider.

8. A compressor pump body, characterized in that, Includes the cylinder assembly as described in any one of claims 1-7.

9. A rotary compressor, characterized in that, Includes the compressor pump body as described in claim 8.

10. An air conditioner, characterized in that, Including the rotary compressor as described in claim 9.

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