Vane, roller compressor and refrigeration apparatus
By optimizing the structural design of the vane hinge joint and controlling the ratio of the notch to the projected area, the vane machining problem was solved, and the operating performance and stability of the compressor were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI MEIZHI PRECISION MFG
- Filing Date
- 2026-04-21
- Publication Date
- 2026-06-09
AI Technical Summary
In the existing technology, it is difficult to directly process the hinge joint of the vane into a complete round head structure, and the design of the notch size lacks targeted optimization, which affects the processing feasibility and performance of the compressor.
The hinge joint designed for the sliding vane has an orthographic projection along the axial direction. The outer periphery includes a first arc segment, a third arc segment, and a transition segment. By controlling the ratio of the reference notch to the orthographic projection area, a suitable fit clearance is formed, optimizing the machining of the hinge joint and the performance of the compressor.
It improves the rotational fit characteristics of the hinge joint, reduces frictional power consumption, enhances connection reliability, improves compressor operating stability, and reduces the possibility of abnormal noise generation.
Smart Images
Figure CN122170044A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of compressor technology, and in particular to a vane and roller compressor and a refrigeration device. Background Technology
[0002] In roller compressors, the hinge joints of the vanes need to be rotatably fitted into the hinge holes of the rollers. Due to limitations in current manufacturing processes, the hinge joints cannot be directly machined into a perfectly round head structure; a notch is usually required to accommodate the assembly requirements. However, the dimensions of the notch affect the compressor's performance, and existing notch designs lack targeted optimization, making it difficult to balance manufacturing feasibility with compressor performance requirements. Summary of the Invention
[0003] The main objective of this invention is to propose a vane and roller compressor and a refrigeration device, which aims to optimize the notch size of the hinge joint, thereby balancing the feasibility of vane processing and the performance of the compressor.
[0004] To achieve the above objectives, the slider proposed in this invention comprises: Main body; and A hinge joint is provided at one end of the main body. The hinge joint has an orthographic projection along the axial direction. The outer periphery of the orthographic projection includes a first arc segment, a third arc segment, and a transition segment connecting the first arc segment and the third arc segment. Wherein, the first arc segment and the third arc segment are located on the same reference base circle, and the transition segment and the reference base circle together enclose a reference gap; The area S1 of the reference notch and the area S2 of the orthographic projection satisfy: ; The slider further includes a neck disposed between the main body and the hinge joint. The neck connects the ends of the first arc segment and the third arc segment away from the transition segment. The included angle between the two lines connecting the two ends of the transition segment to the center of the reference base circle is β. The diameter of the reference base circle is d. The minimum thickness of the neck is w. S1 and S2 satisfy: .
[0005] In one embodiment, the and stated satisfy: .
[0006] In one embodiment, d and w further satisfy: ; and / or, .
[0007] In one embodiment, the thickness directions of the transition section and the neck are parallel.
[0008] In one embodiment, the connection between the neck and the hinge joint is provided with rounded corners.
[0009] In one embodiment, the neck and the main body are connected by a connecting portion, the thickness of which gradually increases in the direction close to the main body.
[0010] In one embodiment, the connection between the connecting portion and the neck, as well as the connection between the connecting portion and the main body, are provided with rounded corners.
[0011] In one embodiment, the thickness T of the main body and the w satisfy: .
[0012] In one embodiment, the thickness of the main body portion and stated satisfy: .
[0013] In one embodiment, β satisfies: 0 < β < 45 degrees.
[0014] The present invention also proposes a roller compressor, which includes: A cylinder has a working chamber inside, and a sliding vane groove is also provided on the cylinder, which is connected to the working chamber; An eccentric crankshaft is rotatably disposed within the working cavity, and the eccentric crankshaft is provided with an eccentric portion; A roller, rotatably fitted onto the eccentric portion, the roller having a hinge hole; and The aforementioned slider is reciprocally inserted into the slider groove, and the hinge joint is rotatably disposed in the hinge hole.
[0015] In one embodiment, the hinge hole includes a rotating engagement portion and a communicating portion, the communicating portion passing through the outer periphery of the roller and communicating with the rotating engagement portion, and the hinge joint being rotatably disposed on the rotating engagement portion.
[0016] The present invention also proposes a refrigeration device, which includes the aforementioned roller compressor.
[0017] In this invention, a transition section is provided to create a notch in the hinge joint, facilitating its machining. If the area S1 of the reference notch and the area S2 of its orthographic projection satisfy a preset relationship, their ratio can be controlled within a suitable range, ensuring a suitable fit clearance between the hinge joint of the vane and the hinge hole of the roller. This fit clearance not only helps improve the rotational fit characteristics of the hinge joint, producing a lubrication-like drag-reducing effect and effectively reducing frictional power consumption, but also enhances the connection reliability between the vane and the roller, improving the stability of compressor operation. Furthermore, this design helps control the compressor's clearance volume, reducing the possibility of abnormal noise, thus ensuring the feasibility of vane machining while optimizing overall machine performance. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the structure of an embodiment of the slider provided by the present invention; Figure 2 This is a schematic cross-sectional view of an embodiment of the roller compressor provided by the present invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a partial structural schematic diagram of an embodiment of the rollers in a roller compressor provided by the present invention.
[0020] Explanation of icon numbers: 110. Cylinder; 111. Working chamber; 112. Vane groove; 120. Crankshaft; 200. Roller; 210. Hinge hole; 211. Rotating fit part; 212. Connecting part; 300, slider; 301, reference base circle; 310. Main body; 320. Hinge joint; 321. First arc segment; 322. Third arc segment; 323. Transition segment; 330. Neck; 340. Connecting part.
[0021] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0023] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0024] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.
[0025] This invention proposes a sliding plate.
[0026] Please see Figure 1 In one embodiment of the present invention, the slider 300 includes: Main body 310; and A hinge joint 320 is provided at one end of the main body 310. The hinge joint 320 has an orthographic projection along the axial direction. The outer periphery of the orthographic projection includes a first arc segment 321, a third arc segment 322, and a transition segment 323 connecting the first arc segment 321 and the third arc segment 322. Wherein, the first arc segment 321 and the third arc segment 322 are located on the same reference base circle 301, and the transition segment 323 and the reference base circle 301 together enclose a reference notch; The area of the reference gap and the area of the orthographic projection Satisfy the preset relation: .
[0027] It can be understood that the first arc segment 321 and the third arc segment 322 are different arc segments of the same reference base circle 30, and the axial direction of the hinge joint 320 is also the direction perpendicular to the radial direction of the reference base circle. The reference notch is also the arc shape AB, with points A and B being the endpoints of the first arc segment 321 and the third arc segment, respectively. The area of the orthographic projection of the hinge joint 320 is... The boundary can be the line connecting the endpoints of the first and third circular arc segments furthest from the transition segment, or it can be a position adjacent to that line. Specifically, the aforementioned ratio can be 0.1, 0.5, 1, 5, 10, 14, etc.
[0028] In the technical solution of this invention, by setting a transition section 323, a notch is formed in the hinge joint 320, thereby facilitating its processing and shaping. (Reference notch area) and the area of the orthographic projection By satisfying the preset relationship, the ratio between the two can be controlled within a suitable range, ensuring that a suitable fitting clearance is formed between the hinge joint 320 of the vane 300 and the hinge hole 210 of the roller 200. This fitting clearance not only helps improve the rotational fitting characteristics of the hinge joint 320, producing a lubrication-like drag-reducing effect and effectively reducing frictional power consumption, but also enhances the connection reliability between the vane 300 and the roller 200, improving the stability of compressor operation. In addition, this design also helps control the clearance volume of the compressor, reducing the possibility of abnormal noise, thus ensuring the feasibility of vane 300 processing while optimizing the overall machine performance.
[0029] In one embodiment, the and stated satisfy: This further enhances the rotational fit characteristics of the hinge joint 320 and the control of the compressor's clearance volume. Specifically, this ratio can be 2, 4, 6, etc. In other embodiments, this ratio can also be 0.3, 7, 8, etc.
[0030] In one embodiment, please refer to Figure 1 The slider 300 further includes a neck 330 disposed between the main body 310 and the hinge joint 320. The neck 330 connects to the end of the first arc segment 321 and the third arc segment 322 away from the transition segment 323. The transition segment 323 is configured to be straight. The included angle between the two lines connecting the two ends of the transition segment 323 to the center O of the reference base circle 301 is β. The diameter of the reference base circle 301 is d. The minimum thickness of the neck 330 is w. and stated satisfy: .
[0031] Specifically, ; Points C and D are the other endpoints of the first and third circular arc segments, respectively, and v is the length of line segment CD, where: ; ; There are also ,Will Substituting, we get: ; Therefore, we can conclude that: .
[0032] This expression can be used for dimensional control of the slider 300 during the design and manufacturing processes, thereby improving the manufacturability of the slider 300. Here, β is in degrees. It should be noted that, unless otherwise specified, in this invention, physical quantities with the same dimensions in the same expression use the same unit.
[0033] In this embodiment, the transition section 323 is configured as a straight line, which is equivalent to forming a flat section at the position of the transition section 323. This makes the structure of the hinge joint 320 relatively regular, facilitating processing and control precision, and helping to ensure the operational reliability of the compressor. In other embodiments, the transition section 323 can also be configured in other shapes, such as a single circular arc, a single elliptical arc, or a shape formed by combining multiple line segments of different types (including straight lines and arcs). Furthermore, the main body 310 and the hinge joint 320 are transitioned through the neck 330, which can avoid excessively large turning angles between adjacent structures and effectively mitigate the geometric abrupt changes between them, thereby improving the manufacturability and structural stability of the vane 300. In other embodiments, provided that manufacturing requirements are met, the main body 310 and the hinge joint 320 can also be directly connected.
[0034] In one embodiment, β satisfies: 0 < β < 45 degrees. When β is within this range, it facilitates the machining of the hinge joint 320 and also helps to form a suitable fit clearance between the hinge joint 320 of the slider 300 and the hinge hole 210 of the roller 200, thereby improving the manufacturability of the slider 300 and enhancing the rotational fit characteristics of the hinge joint 320. β can be 5 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 40 degrees, etc. In other embodiments, β can also be 45 degrees, 50 degrees, 60 degrees, etc.
[0035] Furthermore, when When β corresponds to less than 45 degrees; when When β < 35 degrees, then 14 degrees < β < 35 degrees. This further enhances the constraint on the structural dimensions of the hinge joint 320, thereby further improving the rotational fit characteristics of the hinge joint 320 and further enhancing the operating performance of the compressor.
[0036] In one embodiment, the and stated Also satisfies: It can be understood that transition segment 323 is equivalent to a chord of the reference base circle 301, and the chord length of transition segment 323 is also... In this embodiment, by controlling the ratio between the chord length of the transition section 323 and the thickness of the neck 330, the size of the reference notch can be controlled more precisely, thereby further optimizing the compressor's operating performance. This ratio can be 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, etc. In other embodiments, the ratio can also be 0.7, 0.8, etc.
[0037] In one embodiment, the This is understandable; please refer to [the relevant documentation / reference]. Figure 1 At the reference gap, the maximum distance L between the reference base circle 301 and the transition segment 323 is In this embodiment, by controlling the ratio between this distance and the thickness of the neck 330, the size of the reference notch can be controlled more precisely, thereby further optimizing the compressor's operating performance. This ratio can be 0.1, 0.5, 1, 2, 3, 4, 5, 6, etc. In other embodiments, the ratio can also be 7, 8, 9, etc.
[0038] In one embodiment, the thickness directions of the transition section 323 and the neck 330 are parallel. It should be noted that they are not absolutely parallel; they only need to remain parallel within an acceptable error range. This ensures that the first arc segment 321 and the third arc segment 322 are symmetrically distributed, which helps to further improve the rotational fit characteristics of the hinge joint 320, thereby further optimizing the compressor's operating performance. In other embodiments, the thickness directions of the transition section 323 and the neck 330 may also have an angle, the size of which can be designed according to requirements.
[0039] In one embodiment, the thickness of the main body portion 310 and stated satisfy: This embodiment controls the thickness of the main body 310. and the diameter of the hinge joint 320 The ratio between these values can improve the manufacturability and structural stability of the slider 300. Specifically, this ratio can be 0.92, 0.95, 0.98, etc. In other embodiments, the ratio can also be 0.7, 0.75, 0.8, 0.85, etc.
[0040] In one embodiment, the connection between the neck 330 and the hinge joint 320 is provided with a rounded corner to alleviate stress concentration and improve structural reliability at the connection between the neck 330 and the hinge joint 320.
[0041] In one embodiment, the neck 330 and the main body 310 are connected by a connecting portion 340, the thickness of which gradually increases in the direction close to the main body 310. Thus, the neck 330 and the main body 310 can transition through the connecting portion 340, thereby further optimizing the turning corners between adjacent structures and improving the manufacturability and structural stability of the slide 300.
[0042] In one embodiment, the connection between the connecting portion 340 and the neck 330, as well as the connection between the connecting portion 340 and the main body 310, are provided with rounded corners. This further reduces local stress concentration, improves the molding process performance of the slide 300, and enhances the durability of the slide 300.
[0043] In one embodiment, the thickness of the main body portion 310 and satisfy: This embodiment controls this ratio to ensure the neck 330 has a suitable thickness, thereby guaranteeing the structural strength of the neck 330 and the connection stability between the hinge joint 320 and the neck 330. Specifically, this ratio can be 0.45, 0.5, 0.55, 0.65, 0.7, 0.75, etc. In other embodiments, this ratio can also be 0.35, 0.4, 0.8, 0.85, etc.
[0044] This invention also proposes a roller compressor; please refer to [link / reference]. Figures 2 to 4 The roller compressor includes: The cylinder 110 has a working chamber 111 inside, and the cylinder 110 is also provided with a sliding vane groove 112, which is connected to the working chamber 111. An eccentric crankshaft 120 is rotatably disposed within the working cavity 111, and the eccentric crankshaft 120 is provided with an eccentric portion; A roller 200 is rotatably fitted onto the eccentric portion, and the roller 200 is provided with a hinge hole 210; and The aforementioned slider 300 is reciprocally inserted into the slider groove 112, and the hinge joint 320 is rotatably disposed in the hinge hole 210.
[0045] The specific structure of the sliding vane 300 is as described in the above embodiments. Since this roller compressor adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0046] In one embodiment, please refer to Figures 2 to 4 The hinge hole 210 includes a rotating fitting portion 211 and a communicating portion 212. The communicating portion 212 penetrates the outer periphery of the roller 200 and communicates with the rotating fitting portion 211. The hinge joint 320 is rotatably disposed on the rotating fitting portion 211. Thus, the fitting clearance between the hinge hole 210 and the rotating fitting portion 211 is approximately equal to the area of the reference notch. By limiting the area of the reference notch... and the area of the orthographic projection The ratio between them can reliably control the fit clearance between the rotating mating part 211 and the hinge joint 320, thereby effectively improving the rotational fit characteristics of the hinge joint 320. The inner contour of the rotating mating part 211 can be a continuous circular arc with the same curvature, its radius of curvature being slightly larger than that of the reference base circle, so that the first arc segment 321 and the third arc segment 322 fit and conform to the inner wall of the rotating mating part 211. Of course, the rotating mating part 211 can also have arc segments with different curvatures at positions opposite to the reference notch, or a polygonal contour formed by connecting multiple straight lines sequentially, as long as the selected configuration does not hinder the normal rotation of the hinge joint 320.
[0047] The present invention also proposes a refrigeration device, which also adopts all the technical solutions of all the above embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0048] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.
Claims
1. A sliding vane, used in a roller compressor, characterized in that, The slider includes: Main body; and A hinge joint is provided at one end of the main body. The hinge joint has an orthographic projection along the axial direction. The outer periphery of the orthographic projection includes a first arc segment, a third arc segment, and a transition segment connecting the first arc segment and the third arc segment. Wherein, the first arc segment and the third arc segment are located on the same reference base circle, and the reference base circle and the transition segment together enclose a reference gap; The area S1 of the reference notch and the area S2 of the orthographic projection satisfy: ; The slider further includes a neck disposed between the main body and the hinge joint. The neck connects the first arc segment and the third arc segment at the ends away from the transition segment. The transition segment is configured to be straight. The included angle between the two lines connecting the two ends of the transition segment to the center O of the reference base circle is β. The diameter of the reference base circle is d. The minimum thickness of the neck is w. S1 and S2 satisfy: 。 2. The slider as described in claim 1, characterized in that, The and stated satisfy: .
3. The slider as described in claim 1, characterized in that, The d and the w also satisfy: ; and / or, ; And / or, the thickness direction of the transition section and the neck is parallel.
4. The slider as described in claim 1, characterized in that, The connection between the neck and the hinge joint is provided with rounded corners.
5. The slider as described in claim 1, characterized in that, The neck and the main body are connected by a connecting portion, the thickness of which gradually increases in the direction close to the main body.
6. The slider as described in claim 5, characterized in that, The connection between the connecting part and the neck, as well as the connection between the connecting part and the main body, are all provided with rounded corners.
7. The slider as described in claim 1, characterized in that, The thickness T of the main body and the w satisfy: ; And / or, the thickness of the main body portion and stated satisfy: .
8. The slider as described in claim 1, characterized in that, The β satisfies: 0 < β < 45 degrees.
9. A roller compressor, characterized in that, include: A cylinder has a working chamber inside, and a sliding vane groove is also provided on the cylinder, which is connected to the working chamber; A crankshaft is rotatably disposed within the working cavity, and the crankshaft is provided with an eccentric portion; A roller, rotatably fitted onto the eccentric portion, the roller having a hinge hole; and The slider according to any one of claims 1 to 8 is reciprocally inserted into the slider groove, and the hinge joint is rotatably disposed in the hinge hole.
10. The roller compressor as described in claim 9, characterized in that, The hinge hole includes a rotating fitting part and a connecting part. The connecting part passes through the outer periphery of the roller and is connected to the rotating fitting part. The hinge joint is rotatably disposed on the rotating fitting part.
11. A refrigeration device, characterized in that, Including the roller compressor as described in claim 9 or 10.