A fully lubricated automobile compressor shoe
Patent Information
- Application Number
- CN202522631363.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-12-11
AI Technical Summary
[0003]然而，现有滑履在润滑设计上存在明显不足：一方面，多数滑履采用一体化结构，内部未设置专门的储油与导油通道，仅依赖压缩机内自然扩散的油雾润滑，油雾难以在摩擦面形成持续稳定的油膜，尤其在压缩机启停、高负荷运转等工况下，易出现局部缺油导致干摩擦，加剧滑履与配合部件的磨损；另一方面，部分滑履虽设有简单储油结构，但缺乏引导润滑油均匀分布的设计，润滑油易在重力作用下集中于局部区域，无法覆盖全部摩擦面；此外，一体化结构的滑履若局部磨损，需整体更换，增加了维修成本，因此，针对以上现状，迫切需要开发一种采用半球型壳体与圆形平板可拆卸连接，搭配密封圈密封，磨损后可单独更换部件节省物料；壳体设储油腔、螺旋导油槽、蜂窝状微凹坑及挡油环，结合进油孔与出油孔形成完整油路，借助滑履摆动产生的离心力让润滑油均匀分布并储存，高效形成稳定油膜，润滑效果更好，显著延长滑履的使用寿命的可充分润滑的汽车压缩机滑履，以克服当前实际应用中的不足，满足当前的需求
[0009]本实用新型的有益效果是：该可充分润滑的汽车压缩机滑履，使用时，将半球型壳体与压缩机活塞球坑接合，将圆形平板与压缩机的斜盘平面相接触传递动力，压缩机主轴旋转带动斜盘上下摆动，通过滑履推动活塞作往复运动，滑履结构运动的过程中，压缩机内的润滑油雾从进油孔进入到储油腔内再从出油孔进入螺旋导油槽内，在半球型壳体在压缩机内随着随压缩机斜盘滑动和相对活塞球坑小角度摆动时，摆动时螺旋导油槽产生离心力，使得润滑油沿着螺旋导油槽流动充分分布到半球型壳体的外壁上，通过蜂窝状微凹坑可以对半球型壳体表面的润滑油进行储存，形成润滑油膜，提升润滑效果，所述半球型壳体的下端固定有向上凸起的挡油环，通过挡油环可以将半球型壳体上向下滑落的润滑油；另外，当半球型壳体或圆形平板任意一个出现磨损影响运行时，可以将其单独拆卸更换，节省物料。综上所述，本实用新型采用半球型壳体与圆形平板可拆卸连接，搭配密封圈密封，磨损后可单独更换部件节省物料；壳体设储油腔、螺旋导油槽、蜂窝状微凹坑及挡油环，结合进油孔与出油孔形成完整油路，借助滑履摆动产生的离心力让润滑油均匀分布并储存，高效形成稳定油膜，润滑效果更好，显著延长滑履的使用寿命。
Smart Images
Figure CN224885749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive compressor technology, and in particular to a fully lubricated automotive compressor slide. Background Technology
[0002] The automotive air conditioning compressor is the core power component that maintains the cooling function of the vehicle's air conditioning system. It compresses the refrigerant into a high-temperature, high-pressure gas, propelling the refrigerant through a heat exchange cycle within the system, ultimately cooling the vehicle's interior. Swashplate compressors, due to their compact structure and flexible displacement adjustment, are widely used in various passenger and commercial vehicles. The sliding shoe, as a key transmission and load-bearing component of the swashplate compressor, plays a crucial role in connecting the swashplate and piston. When the compressor's main shaft drives the swashplate to rotate, the circular plate at one end of the sliding shoe slides against the swashplate plane, while the hemispherical housing at the other end embeds itself in the piston's ball pit. Through its own sliding with the swashplate and its small-angle oscillation relative to the piston's ball pit, it converts the rotational motion of the swashplate into the reciprocating linear motion of the piston, thus completing the refrigerant intake and compression process. During this process, the hemispherical housing of the sliding shoe and the piston's ball pit, as well as the circular plate and the swashplate plane, are all under high-frequency, high-load sliding friction. Stable and sufficient lubrication is crucial to ensuring normal operation and preventing wear and failure.
[0003] However, existing sliding tracks have significant shortcomings in their lubrication design: Firstly, most sliding tracks adopt an integrated structure without dedicated oil storage and guiding channels, relying solely on naturally diffused oil mist within the compressor for lubrication. This oil mist struggles to form a continuous and stable oil film on the friction surfaces, especially during compressor start-up and shutdown, and high-load operation, easily leading to localized oil shortages and dry friction, thus exacerbating wear on the sliding track and mating components. Secondly, while some sliding tracks have simple oil storage structures, they lack designs to guide the even distribution of lubricating oil. The lubricating oil tends to concentrate in localized areas under gravity, failing to cover the entire friction surface. Furthermore, the integrated structure of sliding tracks... If localized wear occurs, the entire unit needs to be replaced, increasing maintenance costs. Therefore, in view of the above situation, there is an urgent need to develop a fully lubricated automotive compressor slide that uses a hemispherical shell and a circular flat plate for detachable connection, with a sealing ring for sealing. After wear, the parts can be replaced individually, saving materials. The shell is equipped with an oil storage chamber, spiral oil guide grooves, honeycomb micro-dimples, and an oil retaining ring. Combined with the oil inlet and outlet holes, it forms a complete oil circuit. By using the centrifugal force generated by the sliding shoe's swing, the lubricating oil is evenly distributed and stored, efficiently forming a stable oil film, resulting in better lubrication and significantly extending the service life of the slide. This design overcomes the shortcomings in current practical applications and meets current needs. Utility Model Content
[0004] The purpose of this invention is to provide a fully lubricated automotive compressor slide to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fully lubricated automotive compressor slide includes a slide structure, countersunk screws, and a sealing ring. The slide structure includes a hemispherical shell and a circular plate. The hemispherical shell and the circular plate are detachably fixed together by multiple countersunk screws. A sealing ring is installed between the hemispherical shell and the circular plate. An oil storage chamber is provided inside the hemispherical shell. Multiple honeycomb-shaped micro-pits are provided on the outer surface of the hemispherical shell. A spiral oil guide groove is provided on the outer wall of the hemispherical shell. An oil inlet and an oil outlet are provided on the hemispherical shell and communicate with the oil storage chamber. The oil inlet is located at the starting end of the spiral oil guide groove, and the oil outlet is located above the oil inlet and communicates with the spiral oil guide groove. An upwardly protruding oil retaining ring is fixed to the lower end of the hemispherical shell.
[0006] Preferably, both the hemispherical shell and the circular plate are made of high-carbon chromium bearing steel, and the outer sides of both the hemispherical shell and the circular plate are coated with a layer of polytetrafluoroethylene.
[0007] Preferably, the bottom of the hemispherical shell is provided with a first groove for installing the sealing ring, and the circular plate is provided with a second groove for installing the sealing ring.
[0008] Preferably, the honeycomb-shaped micro-pits have a diameter of 80 μm and a depth of 15 μm.
[0009] The beneficial effects of this utility model are as follows: When in use, the hemispherical housing engages with the piston crater of the compressor, and the circular plate contacts the swashplate of the compressor to transmit power. The rotation of the compressor main shaft drives the swashplate to swing up and down, and the sliding shoe pushes the piston in reciprocating motion. During the movement of the sliding shoe structure, the lubricating oil mist inside the compressor enters the oil storage chamber from the oil inlet and then enters the spiral oil guide groove from the oil outlet. As the hemispherical housing slides with the compressor swashplate and swings at a small angle relative to the piston crater, the spiral oil guide groove generates centrifugal force, causing the lubricating oil to flow along the spiral oil guide groove and be fully distributed on the outer wall of the hemispherical housing. The honeycomb-shaped micro-pits can store the lubricating oil on the surface of the hemispherical housing, forming a lubricating oil film and improving the lubrication effect. An upwardly protruding oil baffle ring is fixed at the lower end of the hemispherical housing, which can block the lubricating oil that slides down the hemispherical housing. Furthermore, when either the hemispherical housing or the circular plate becomes worn and affects operation, it can be disassembled and replaced individually, saving materials. In summary, this utility model adopts a hemispherical shell and a circular flat plate that can be detachably connected and sealed with a sealing ring. After wear, the parts can be replaced individually to save materials. The shell is equipped with an oil storage chamber, a spiral oil guide groove, a honeycomb micro-dimples and an oil retaining ring. Combined with the oil inlet and oil outlet, it forms a complete oil circuit. With the help of the centrifugal force generated by the sliding shoe swing, the lubricating oil is evenly distributed and stored, forming a stable oil film efficiently, resulting in better lubrication and significantly extending the service life of the sliding shoe. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0011] Figure 2 This is an internal sectional view of the present invention.
[0012] Figure 3 This is a schematic diagram of the disassembled state of this utility model.
[0013] Figure 4 This is a partial structural schematic diagram of the present invention.
[0014] Legend: 1. Sliding track structure; 11. Hemispherical shell; 111. Oil baffle ring; 112. Spiral oil guide groove; 113. Oil inlet hole; 114. Oil outlet hole; 115. Honeycomb micro-pits; 116. Oil storage chamber; 117. First slot; 12. Circular plate; 2. Countersunk screw; 121. Second slot; 3. Sealing ring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0016] Specific implementation examples are given below.
[0017] See Figures 1-4 In this embodiment of the present invention, a fully lubricated automotive compressor slide includes a slide structure 1, countersunk screws 2, and a sealing ring 3. The slide structure 1 includes a hemispherical shell 11 and a circular plate 12. The hemispherical shell 11 and the circular plate 12 are detachably fixed together by a plurality of countersunk screws 2. A sealing ring 3 is installed between the hemispherical shell 11 and the circular plate 12. The sealing effect between the hemispherical shell 11 and the circular plate 12 is improved by the arrangement of the sealing ring 3.
[0018] The hemispherical housing 11 is used to engage with the piston ball pit of the compressor. The rotation of the main shaft drives the swashplate to swing up and down, and the sliding shoe pushes the piston to reciprocate. The circular plate 12 is used to contact the swashplate plane of the compressor to transmit power.
[0019] Both the hemispherical shell 11 and the circular plate 12 are made of high-carbon chromium bearing steel, which gives them excellent wear resistance, high contact fatigue strength, and the ability to withstand large impact loads. The outer sides of both the hemispherical shell 11 and the circular plate 12 are coated with a layer of polytetrafluoroethylene (PTFE). The extremely low coefficient of friction of PTFE gives the hemispherical shell 11 and the circular plate 12 excellent self-lubricating effect, which greatly reduces the sliding resistance between them and the mating parts, reduces frictional loss during movement, effectively avoids jamming or wear caused by dry friction, and significantly extends the service life of the sliding track and the corresponding equipment.
[0020] The hemispherical shell 11 has an oil storage cavity 116 inside. Multiple honeycomb-shaped micro-pits 115 are formed on the outer surface of the hemispherical shell 11, each with a diameter of 80 μm and a depth of 15 μm. These micro-pits store lubricating oil on the surface of the hemispherical shell 11. A spiral oil guide groove 112 is formed on the outer wall of the hemispherical shell 11. The hemispherical shell 11 has an oil inlet 113 and an oil outlet 114 connected to the oil storage cavity 116. The oil inlet 113 is located at the starting end of the spiral oil guide groove 112, and the oil outlet 114 is located above the oil inlet 113 and connected to the spiral oil guide groove 112. In use… The lubricating oil mist inside the compressor enters the oil storage chamber 116 through the oil inlet 113 and then enters the spiral oil guide groove 112 through the oil outlet 114. When the hemispherical shell 11 slides with the compressor swashplate and swings at a small angle relative to the piston ball pit inside the compressor, the spiral oil guide groove 112 generates centrifugal force during the swing, which causes the lubricating oil to flow along the spiral oil guide groove 112 and be fully distributed on the outer wall of the hemispherical shell 11. The honeycomb-shaped micro-pits 115 can store the lubricating oil on the surface of the hemispherical shell 11, forming a lubricating oil film and improving the lubrication effect. The lower end of the hemispherical shell 11 is fixed with an upwardly protruding oil baffle ring 111, which can block the lubricating oil that slides down the hemispherical shell 11.
[0021] The bottom of the hemispherical shell 11 is provided with a first slot 117 for installing the sealing ring 3, and the circular plate 12 is provided with a second slot 121 for installing the sealing ring 3.
[0022] Working principle: This fully lubricated automotive compressor slide mechanism engages the hemispherical housing 11 with the compressor piston crater during use, and the circular flat plate 12 contacts the swashplate plane of the compressor to transmit power. The rotation of the compressor main shaft drives the swashplate to swing up and down, which in turn pushes the piston to reciprocate through the slide mechanism. During the movement of the slide mechanism 1, the lubricating oil mist inside the compressor enters the oil storage chamber 116 from the oil inlet 113 and then enters the spiral oil guide groove 112 from the oil outlet 114. As the hemispherical housing 11 slides with the compressor swashplate and swings at a small angle relative to the piston crater inside the compressor, the spiral oil guide groove 112 is activated during the swing. The spiral oil guide groove 112 generates centrifugal force, causing the lubricating oil to flow along the spiral oil guide groove 112 and be fully distributed on the outer wall of the hemispherical shell 11. The honeycomb micro-pits 115 can store the lubricating oil on the surface of the hemispherical shell 11, forming a lubricating oil film and improving the lubrication effect. The lower end of the hemispherical shell 11 is fixed with an upwardly protruding oil baffle ring 111, which can block the lubricating oil that slides down the hemispherical shell 11. In addition, when either the hemispherical shell 11 or the circular plate 12 is worn and affects operation, it can be disassembled and replaced individually, saving materials.
[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fully lubricated automotive compressor slide, characterized in that, The system includes a sliding track structure (1), countersunk screws (2), and a sealing ring (3). The sliding track structure (1) includes a hemispherical shell (11) and a circular plate (12). The hemispherical shell (11) and the circular plate (12) are detachably fixed together by multiple countersunk screws (2). A sealing ring (3) is installed between the hemispherical shell (11) and the circular plate (12). An oil storage chamber (116) is provided inside the hemispherical shell (11). Multiple honeycomb-shaped micro-pits are provided on the outer surface of the hemispherical shell (11). 115), a spiral oil guide groove (112) is provided on the outer wall of the hemispherical shell (11), and an oil inlet hole (113) and an oil outlet hole (114) connected to the oil storage chamber (116) are provided on the hemispherical shell (11). The oil inlet hole (113) is located at the starting end of the spiral oil guide groove (112), and the oil outlet hole (114) is located above the oil inlet hole (113) and connected to the spiral oil guide groove (112). An upwardly protruding oil baffle ring (111) is fixed at the lower end of the hemispherical shell (11).
2. The fully lubricated automotive compressor slipper according to claim 1, characterized in that, Both the hemispherical shell (11) and the circular plate (12) are made of high carbon chromium bearing steel, and the outer sides of both the hemispherical shell (11) and the circular plate (12) are coated with a layer of polytetrafluoroethylene.
3. The fully lubricated automotive compressor slide according to claim 1, characterized in that, The bottom of the hemispherical shell (11) is provided with a first slot (117) for installing the sealing ring (3), and the circular plate (12) is provided with a second slot (121) for installing the sealing ring (3).
4. The fully lubricated automotive compressor slide according to claim 1, characterized in that, The honeycomb-shaped micro-pits (115) have a diameter of 80 μm and a depth of 15 μm.