WO2021088474A1 - 滑片、泵体组件、压缩机和空调器 - Google Patents

滑片、泵体组件、压缩机和空调器 Download PDF

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Publication number
WO2021088474A1
WO2021088474A1 PCT/CN2020/111242 CN2020111242W WO2021088474A1 WO 2021088474 A1 WO2021088474 A1 WO 2021088474A1 CN 2020111242 W CN2020111242 W CN 2020111242W WO 2021088474 A1 WO2021088474 A1 WO 2021088474A1
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WIPO (PCT)
Prior art keywords
sliding
insert
inserts
groove
piece
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PCT/CN2020/111242
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English (en)
French (fr)
Inventor
胡余生
魏会军
徐嘉
任丽萍
杨森
赵旭敏
彭慧明
杜忠诚
邹鹏
樊峰刚
张洪玮
Original Assignee
珠海格力节能环保制冷技术研究中心有限公司
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Publication of WO2021088474A1 publication Critical patent/WO2021088474A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/40—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member
    • F04C18/44—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member with vanes hinged to the inner member

Definitions

  • the present disclosure relates to the technical field of compressors, in particular to a sliding vane, a pump body assembly, a compressor and an air conditioner.
  • the operating frequency range is becoming wider and the working conditions are becoming more and more complex and changeable, and problems such as insufficient low-frequency cooling capacity, liquid circulation, and poor reliability of high-frequency high-pressure difference are prone to occur.
  • the main reason is that in the low frequency or liquid condition of the traditional rotor compressor, the sliding vane is prone to follow-up problems and detachment, which leads to leakage and abnormal noise; under high frequency and high pressure difference conditions, the sliding vane is The cantilever structure makes the sliding plate heavy, which is prone to wear problems.
  • the technique known to the inventor improves the way the sliding piece receives force by adding inserts on the sliding piece.
  • the insert in the technique known to the inventor wraps the entire head of the sliding piece inside. , Not only lead to complex overall structure of the insert, and inconvenient processing, but also to consider the matching relationship with the roller, resulting in a relatively limited overall structure of the insert, and the design structure is not flexible enough, resulting in a decrease in the working performance of the sliding piece.
  • the technical problem to be solved by the present disclosure is to provide a sliding vane, a pump body assembly, a compressor, and an air conditioner, which can reduce the processing difficulty of inserts, improve the design flexibility of the sliding vane head structure, and can choose suitable ones according to needs.
  • the matching structure improves the working performance of the sliding plate.
  • the present disclosure provides a sliding plate including a sliding plate body, the sliding plate body includes a first sliding surface and a second sliding surface arranged in parallel, and inserts are respectively provided on the first sliding surface and the second sliding surface , The inserts on the first sliding surface and the inserts on the second sliding surface are arranged on both sides of the sliding piece head of the sliding piece body, and are separated by the sliding piece head.
  • the insert includes a fitting surface that is attached to the slide body and a second arc surface located on the side of the insert away from the slide body, and the two second arc surfaces are located on the same cylindrical surface.
  • the insert further includes a side connecting surface, which is connected between the fitting surface and the second arc surface and extends along the length direction of the insert.
  • first sliding surface and the second sliding surface are provided with embedding grooves, and the inserts are embedded in the embedding grooves.
  • the head of the sliding blade body includes a first arc surface, and the first arc surface is located inside the cylindrical surface where the second arc surface is located; or, the first arc surface and the second arc surface are located on the same cylindrical surface.
  • the length of the insert is less than or equal to the height of the slide body.
  • the insert and the insert are integrally formed with the slide body.
  • a pump body assembly including a sliding plate, a cylinder, and a roller.
  • the sliding plate is the aforementioned sliding plate.
  • the cylinder includes a sliding groove
  • the roller includes a rolling groove
  • one end of the sliding plate is slidably arranged on the sliding plate.
  • one end of the sliding plate with the insert block is movably arranged in the rolling groove, and the outer peripheral surface of the insert block is attached to the groove wall of the rolling groove.
  • the second arc surface is matched with the inner circumferential surface of the rolling groove.
  • the head of the sliding piece includes a first curved surface, and when the length of the insert is less than the height of the sliding piece body, the first curved surface is in sealing contact with the groove wall of the rolling groove.
  • the head of the sliding blade includes a first arc surface, and when the length of the insert is equal to the height of the sliding blade body, the first arc surface is in sealing contact with the groove wall of the rolling groove, or, the first arc surface is in contact with the groove wall of the rolling groove. Spaces are formed between the groove walls of the rolling groove.
  • the roller is provided with a pressure guiding hole along the radial direction, one end of the pressure guiding hole is connected with the rolling groove, and the other end of the pressure guiding hole is connected with the inner cavity of the roller.
  • a compressor including the above-mentioned sliding vane or the above-mentioned pump body assembly.
  • an air conditioner including the above-mentioned sliding plate or the above-mentioned pump body assembly.
  • the sliding plate provided by the present disclosure includes a sliding plate body.
  • the sliding plate body includes a first sliding surface and a second sliding surface arranged in parallel.
  • the first sliding surface and the second sliding surface are respectively provided with inserts and are located on the first sliding surface
  • the upper inserts and the inserts on the second sliding surface are arranged on both sides of the sliding piece head of the sliding piece body and separated by the sliding piece head.
  • the two sides of the slide body are respectively provided with inserts, and the inserts are separated by the head of the slide, so that the insert and the head of the slide form a split structure, which can design the insert structure more flexibly and conveniently, and make the inserts
  • the design of the block will not be affected by the structure of the slider head, and at the same time, the flexibility of the slider head design is improved, making the overall structure design of the slider more flexible, and different inserts can be selected according to the matching relationship with the roller
  • the combined structure with the head of the sliding piece can realize the best sliding piece structure design and improve the overall working performance of the sliding piece.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a sliding piece body of a sliding piece according to an embodiment of the disclosure
  • FIG. 2 is a schematic diagram of a three-dimensional structure of an insert of a sliding sheet according to an embodiment of the disclosure
  • FIG. 3 is a schematic diagram of a three-dimensional structure of a sliding sheet according to an embodiment of the disclosure.
  • FIG. 4 is a first dimensional structure diagram of the sliding piece body of the sliding piece according to the embodiment of the disclosure.
  • FIG. 5 is a second dimensional structure diagram of the sliding piece body of the sliding piece according to the embodiment of the disclosure.
  • Fig. 6 is a dimensional structure diagram of an insert of a sliding sheet according to an embodiment of the disclosure.
  • FIG. 7 is a schematic diagram of a three-dimensional structure of a roller according to an embodiment of the disclosure.
  • Fig. 8 is a dimensional structure diagram of a roller according to an embodiment of the disclosure.
  • FIG. 9 is a three-dimensional assembly structure diagram of the sliding plate and the roller of the first embodiment of the disclosure.
  • FIG. 10 is an assembly structure diagram of the sliding plate and the roller according to the first embodiment of the disclosure.
  • FIG. 11 is a three-dimensional assembly structure diagram of the sliding plate and the roller according to the second embodiment of the disclosure.
  • Fig. 12 is an assembly structure diagram of a sliding plate and a roller according to a second embodiment of the disclosure.
  • Fig. 13 is a schematic structural diagram of a pump body assembly according to an embodiment of the disclosure.
  • the sliding plate includes a sliding plate body 1, and the sliding plate body 1 includes a first sliding surface and a second sliding surface arranged in parallel, the first sliding surface and the second sliding surface
  • the sliding surfaces are respectively provided with inserts 2, and the inserts 2 on the first sliding surface and the inserts 2 on the second sliding surface are arranged on both sides of the sliding piece head of the sliding piece body 1, and are The slider heads are separated.
  • the slide body 1 is provided with inserts 2 on both sides, and the inserts 2 are separated by the slide head of the slide body 1, so that the inserts 2 and the slide head form a split structure, which can be more flexible
  • the insert structure is conveniently designed so that the design of insert 2 will not be affected by the structure of the slider head, and the flexibility of the slider head design is also improved, making the overall structure design of the slider more flexible.
  • Different combinations of inserts and slider heads are selected for the matching relationship of the rollers, which can achieve the best slider structure design and improve the overall working performance of the slider.
  • the insert 4 passes through the through hole 3, after the insert 2 and the insert 4 are fixed as a whole, it is equivalent to forming a pin structure with the slide body 1, so the insert 2 and the insert 4 are basically unable to move relative to the slide body 1 after they are installed on the slide body 1, and the structure is more stable and reliable compared to the insert structure embedded on the outside of the slide body 1. There will be no occurrence of the phenomenon that the insert 2 is forced to fall off the slide body 1 during the working process.
  • the insert block 2 includes a fitting surface that is adhered to the sliding plate body 1 and a second arc surface 6 located on the side of the insert block 2 away from the sliding plate body 1, and the two second arc surfaces 6 are located on the same cylindrical surface.
  • the structure of the two second curved surfaces 6 matches the structure of the rolling groove 11 on the roller 9, so that it can form a close fit with the rolling groove 11, and combine the sliding vane and the roller line in the traditional rotor compressor.
  • the structural form of the seal is changed to the arc seal in the present disclosure, thereby effectively blocking the line leakage passage between the sliding plate and the roller 9, eliminating leakage, and solving the problem of poor low-frequency cooling capacity.
  • the insert 2 can be used to limit the movement of the slide, thereby effectively solving the problem of the followability of the slide. Ensure the stable operation of the compressor under liquid working conditions and light working conditions.
  • the insert 2 further includes a side connecting surface, which is connected between the fitting surface and the second arc surface 6 and extends along the length direction of the insert 2.
  • a side connecting surface By increasing the side connecting surface, the vertical surface of the insert 2 can be increased, thereby reducing the processing or molding difficulty of the insert 2, improving the molding efficiency and reducing the molding cost.
  • the insert 2 can be used to support the sliding of the sliding piece in the rolling groove 11, so that the sliding piece is changed from cantilever support to support at both ends, which improves The force of the sliding vane solves the problem of compressor wear under high frequency and high pressure difference.
  • the first sliding surface and the second sliding surface are provided with embedding grooves 7, and the inserting block 2 is embedded in the embedding groove 7.
  • the inserting groove 7 By adding the inserting groove 7, it is convenient to install and fix the insert 2 on the slide body 1, and at the same time, the position of the insert 2 on the slide body 1 can be effectively restricted through the inserting groove 7, and the groove of the inserting groove 7 can be used.
  • the wall forms a stop to the insert 2 so that the force of the insert 2 during the movement of the sliding piece is more dispersed, and it is not easy to be damaged due to the concentrated force.
  • the two sliding sides of the slide body 1 are symmetrically provided with embedding grooves 7 for inserting the inserts 2.
  • the sides of the embedding grooves 7 are two parallel planes, the distance between the two planes is L1, and the two planes define The width of the embedding groove 7 is L1, the distance between the bottom planes of the two embedding grooves 7 is L2, and a vacancy is provided at the tail part of the sliding plate body 1 away from the embedding groove 7, which can reduce the mass of the sliding plate body 1.
  • the minimum distance from the bottom to the head of the slide body 1 is L3. In order to ensure sealing, L3 needs to meet the following conditions:
  • e is the eccentricity of the rotor compressor
  • 2e is the maximum stroke of the sliding vane
  • ⁇ is the minimum sealing distance required to ensure the sealing of the sliding vane side and the cylinder sliding vane groove, generally 3 ⁇ 5mm, as shown in Figure 4 and Figure 5. .
  • the radius of the second arc of the insert 2 is r, the width of the bonding surface is L5, the maximum distance from the second arc to the bonding surface is L4, and the two side connecting surfaces and the second arc can be rounded Transition connection, thereby reducing local contact stress.
  • the head of the sliding vane body 1 includes a first arc surface 5, which is located inside the cylinder where the second arc surface 6 is located; or, the first arc surface 5 and the second arc surface 6 are located on the same cylinder surface.
  • the structure of the first arc surface 5 is affected by the structure of the insert 2 and needs to be matched with the structure of the insert 2 to realize the sealing cooperation with the rolling groove 11.
  • the length of the insert 2 is less than or equal to the height of the slide body 1.
  • the length of the insert 2 is the length of the slide body 1 in the height direction.
  • the insert 2 and the insert 4 are integrally formed with the slide body 1.
  • the material of the insert 2 can be a metal material or a ceramic material.
  • a wear-reducing and wear-resistant coating is added to the arc surface to reduce the friction coefficient, increase the wear resistance of the component, and improve reliability.
  • the insert 2 uses an engineering plastic part, and the engineering plastic insert is directly combined with the sliding piece to form a part, that is, the engineering plastic is directly attached to the sliding piece to form an insert shape.
  • the slide body 1 is also provided with a through hole 3 extending from the first sliding surface to the second sliding surface.
  • the inserts 2 on the first sliding surface and the second sliding surface are fixed in the through hole 3 by inserts 4
  • the slide body 1 is on.
  • the thickness of the slide body 1 is the distance between the two first sliding surfaces, and the height of the slide body 1 is the height in the axial direction.
  • the slide body 1 is provided with an insert 2 on the sliding surface on the side where the roller 9 is in rolling engagement, and the insert 2 is fixed on the slide body 1 through the insert 4 in the through hole 3 on the slide body 1 Not only can the insert 2 block the leakage between the sliding plate and the roller 9 to solve the problem of large leakage, but also can change the way the sliding plate is stressed and reduce the wear of the sliding plate. Since the insert 2 and the slide body 1 are fixedly connected by the insert 4 located in the through hole 3, the connection structure between the insert 2 and the slide body 1 can be ensured by the insert 4, and the insert 2 can be effectively strengthened.
  • the adhesion force on the sliding plate body 1 prevents the insert 2 from sliding off the sliding plate body 1 during the working process of the sliding plate, and improves the working reliability of the sliding plate.
  • the pump body assembly includes a sliding plate, a cylinder 8 and a roller 9.
  • the sliding plate is the aforementioned sliding plate
  • the cylinder 8 includes a sliding groove 10
  • the roller 9 includes In the rolling groove 11, one end of the sliding piece is slidably arranged in the sliding groove 10, one end of the sliding piece is movably arranged in the rolling groove 11, and the outer peripheral surface of the insert 2 is attached to the groove wall of the rolling groove 11.
  • the main structure of the roller is a hollow cylindrical structure, with an inner diameter of R1 and an outer diameter of R2; the end surface is close to the outer circle with a cylindrical notch, namely the rolling groove 11, the radius of the rolling groove 11, and the distance from the axis center of the rolling groove 11 to the roller axis It is L; the rolling groove 11 and the outer surface of the roller are provided with an arc chamfer r.
  • the dimensions of the roller groove 11 meet the following requirements at the same time:
  • the second arc surface 6 matches the inner circumferential surface of the rolling groove 11, which can more effectively ensure the surface sealing effect between the second arc surface 6 and the rolling groove 11.
  • the slider head When the slider head includes a first arc surface 5 and the length of the insert 2 is less than the height of the slider body 1, the first arc surface 5 and the groove wall of the rolling groove 11 are sealed and attached.
  • the insert 2 When the length of the insert 2 is less than the height of the slide body 1, at this time, the insert 2 cannot form a seal between the two ends in the length direction and the roller 9, so the slide body 1 is needed to realize the slide and the roller.
  • the seal between the sub 9 prevents the space on both sides of the sliding plate from communicating.
  • the sliding plate body 1 is sealed with flanges or partitions in the height direction, it is only necessary to ensure the sealing between the sliding plate body and the groove wall of the rolling groove 11, and the sliding plate body can be used. 1 Realize the sealing fit between the sliding vane and the roller 9, which can prevent the high-pressure cavity and the low-pressure cavity on both sides of the sliding vane from being connected.
  • the diameter of the first arc surface 5 of the head of the slide body 1 is the same as the diameter of the rolling groove 11, which can ensure that the first arc surface 5 of the slide body 1 and the groove wall of the rolling groove 11 are the same. Sealing and fitting between, forming a sealing surface. As shown in Figure 9 and Figure 10.
  • the slider head includes a first arc surface 5, and when the length of the insert 2 is equal to the height of the slider body 1, the first arc surface 5 and the groove wall of the rolling groove 11 are sealed and fit, or, the first arc surface 5 and Spaces are formed between the groove walls of the rolling groove 11.
  • the two ends of the insert 2 in the length direction can be sealed between the flange or the partition, and the rolling surface can be formed between the roller 9 Therefore, it is not necessary to use the sliding plate body 1 to realize the sealing between the sliding plate and the roller 9 to prevent the space on both sides of the sliding plate from communicating.
  • the first arc surface 5 of the sliding vane body 1 can be in sealing contact with the groove wall of the rolling groove 11, or can be spaced apart from the groove wall of the rolling groove 11, which will not affect the high and low pressure of the sliding vane on both sides. The isolation effect between the cavities.
  • a predetermined interval is formed between the first arc surface 5 of the sliding blade body 1 and the groove wall of the rolling groove 11, so as to avoid the first arc surface 5 of the sliding blade body 1 and the groove wall of the rolling groove 11 Contact, effectively reducing the contact area between the sliding plate and the rolling groove 11, reducing frictional power consumption. As shown in Figure 11 and Figure 12.
  • the roller 9 is provided with a pressure guiding hole 12 along the radial direction, one end of the pressure guiding hole 12 is communicated with the rolling groove 11, and the other end of the pressure guiding hole 12 is communicated with the inner cavity of the roller 9.
  • shell pressure can be introduced at the head of the slide, which offsets the shell pressure at the tail of the slide, reduces the load along the direction of the slide, and improves the reliability of the slide. .
  • the insert 2 is matched with the slide body 1 and is formed into a single body by means of injection molding or the like.
  • the head of the sliding blade is matched with the rolling groove 11 of the roller 9, that is, the outer arc surface of the insert 2 is installed in cooperation with the arc surface of the rolling groove 11 of the roller, and the head of the sliding blade is fitted with the groove wall of the rolling groove 11 of the roller. No contact; the tail of the slide is matched with the chute 10.
  • the low-pressure cavity and high-pressure cavity inside the pump body are sealed with the arc surface of the rolling groove 11 of the roller through the outer arc surface of the insert 2, which is a surface-to-surface fit, which blocks the leakage between the sliding vane and the roller 9
  • the channel eliminates leakage and solves the problem of low-frequency cold capacity difference; the head of the sliding vane only rotates relative to the roller 9, which solves the problem of the followability of the sliding vane, and can ensure the stable operation of the compressor under liquid conditions and light conditions. ;
  • the head and tail of the sliding vane are supported by the roller 9 and the sliding groove 10 respectively.
  • the sliding vane is changed from cantilever support to support at both ends, which improves the force of the sliding vane and solves the problem of compressor wear under high frequency and high pressure difference; due to the rollers
  • the rolling groove 11 indirectly introduces high pressure, which cancels out the high pressure at the tail of the sliding vane. There is no gas force caused by the gas pressure difference along the reciprocating direction of the sliding vane. The reciprocating movement of the sliding vane only needs to overcome the frictional force. Contact with the rolling groove 11 of the roller can effectively reduce the contact surface and reduce the power consumption.
  • the compressor includes the above-mentioned sliding vane, or the above-mentioned pump body assembly.
  • an air conditioner includes the above-mentioned sliding vane, or the above-mentioned pump body assembly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

一种滑片、泵体组件、压缩机和空调器。滑片包括滑片本体(1)，滑片本体(1)包括平行设置的第一滑动面和第二滑动面，第一滑动面和第二滑动面上分别设置有镶块(2)，位于第一滑动面上的镶块(2)和位于第二滑动面上的镶块(2)设置在滑片本体(1)的滑片头部两侧，并被滑片头部隔开。能够降低镶块的加工难度，提高滑片头部结构的设计灵活度。

Description

滑片、泵体组件、压缩机和空调器
相关申请
本公开要求2019年11月04日申请的，申请号为201911067208.4，名称为“滑片、泵体组件、压缩机和空调器”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本公开涉及压缩机技术领域，具体涉及一种滑片、泵体组件、压缩机和空调器。
背景技术
随着转子式压缩机应用范围的不断拓宽，运行频率范围越来越宽，工况越来越复杂多变，容易出现低频冷量不足，带液循环，高频高压差可靠性差等问题，其主要原因为，传统转子式压缩机在低频或带液情况下，滑片容易出现跟随性问题而产生脱离，从而导致泄漏及异常音出现；在高频和高压差工况下，因滑片为悬臂结构，使得滑片负荷重，从而容易出现磨损问题。
为了改善此状况，发明人所知的技术中通过在滑片上增加镶块的方式来改善滑片的受力方式，然而发明人所知的技术中的镶块将滑片头部整个包裹在内，不仅导致镶块的整体结构较复杂，加工不便，而且要考虑与滚子的配合关系，导致镶块的整体结构较为受限，设计结构不够灵活，导致滑片的工作性能降低。
发明内容
因此，本公开要解决的技术问题在于提供一种滑片、泵体组件、压缩机和空调器，能够降低镶块的加工难度，提高滑片头部结构的设计灵活度，可以根据需要选择合适的配合结构，提高滑片的工作性能。
为了解决上述问题，本公开提供一种滑片，包括滑片本体，滑片本体包括平行设置的第一滑动面和第二滑动面，第一滑动面和第二滑动面上分别设置有镶块，位于第一滑动面上的镶块和位于第二滑动面上的镶块设置在滑片本体的滑片头部两侧，并被滑片头部隔开。
在一个实施例中，镶块包括与滑片本体贴合的贴合面和位于镶块远离滑片本体一侧的第二弧面，两个第二弧面位于同一柱面上。
在一个实施例中，镶块还包括侧连接面，侧连接面连接在贴合面和第二弧面之间，并 沿镶块的长度方向延伸。
在一个实施例中，第一滑动面和第二滑动面上设置有嵌槽，镶块嵌设在嵌槽内。
在一个实施例中，滑片本体的头部包括第一弧面，第一弧面位于第二弧面所在的柱面内侧；或，第一弧面和第二弧面位于同一柱面上。
在一个实施例中，镶块的长度小于或等于滑片本体的高度。
在一个实施例中，镶块和镶件与滑片本体成型为一体。
根据本公开的另一方面，提供了泵体组件，包括滑片、气缸和滚子，滑片为上述的滑片，气缸包括滑槽，滚子包括滚动槽，滑片的一端滑动设置在滑槽内，滑片设置镶块的一端活动设置在滚动槽内，镶块的外周面与滚动槽的槽壁贴合。
在一个实施例中，镶块包括第二弧面时，第二弧面与滚动槽的内周面相适配。
在一个实施例中，滑片头部包括第一弧面，且镶块的长度小于滑片本体的高度时，第一弧面与滚动槽的槽壁密封贴合。
在一个实施例中，滑片头部包括第一弧面，且镶块的长度等于滑片本体的高度时，第一弧面与滚动槽的槽壁密封贴合，或，第一弧面与滚动槽的槽壁之间形成间隔。
在一个实施例中，滚子上沿径向设置有引压孔，引压孔的一端与滚动槽连通，引压孔的另一端与滚子的内腔连通。
根据本公开的另一方面，提供了一种压缩机，包括上述的滑片，或上述的泵体组件。
根据本公开的另一方面，提供了一种空调器，包括上述的滑片，或上述的泵体组件。
本公开提供的滑片，包括滑片本体，滑片本体包括平行设置的第一滑动面和第二滑动面，第一滑动面和第二滑动面上分别设置有镶块，位于第一滑动面上的镶块和位于第二滑动面上的镶块设置在滑片本体的滑片头部两侧，并被滑片头部隔开。该滑片本体的两侧分别设置有镶块，且镶块由滑片头部间隔开，因此使得镶块和滑片头部形成分体式结构，可以更加灵活方便地设计镶块结构，使得镶块的设计不会受到滑片头部结构的影响，同时也提高了滑片头部设计的灵活性，使得滑片的整体结构设计更加灵活，可以根据与滚子的配合关系选择不同的镶块和滑片头部组合结构，能够实现最佳的滑片结构设计，提高滑片的整体工作性能。
附图说明
图1为本公开实施例的滑片的滑片本体的立体结构示意图；
图2为本公开实施例的滑片的镶块的立体结构示意图；
图3为本公开实施例的滑片的立体结构示意图；
图4为本公开实施例的滑片的滑片本体的第一尺寸结构图；
图5为本公开实施例的滑片的滑片本体的第二尺寸结构图；
图6为本公开实施例的滑片的镶块的尺寸结构图；
图7为本公开实施例的滚子的立体结构示意图；
图8为本公开实施例的滚子的尺寸结构图；
图9为本公开第一实施例的滑片和滚子的立体装配结构图；
图10为本公开第一实施例的滑片和滚子的装配结构图；
图11为本公开第二实施例的滑片和滚子的立体装配结构图；
图12为本公开第二实施例的滑片和滚子的装配结构图；
图13为本公开实施例的泵体组件的结构示意图。
附图标记表示为：
1、滑片本体；2、镶块；3、通孔；4、镶件；5、第一弧面；6、第二弧面；7、嵌槽；8、气缸；9、滚子；10、滑槽；11、滚动槽；12、引压孔。
具体实施方式
结合参见图1至图13所示，根据本公开的实施例，滑片包括滑片本体1，滑片本体1包括平行设置的第一滑动面和第二滑动面，第一滑动面和第二滑动面上分别设置有镶块2，位于所述第一滑动面上的镶块2和位于第二滑动面上的镶块2设置在滑片本体1的滑片头部两侧，并被所述滑片头部隔开。
该滑片本体1的两侧分别设置有镶块2，且镶块2由滑片本体1的滑片头部间隔开，因此使得镶块2和滑片头部形成分体式结构，可以更加灵活方便地设计镶块结构，使得镶块2的设计不会受到滑片头部结构的影响，同时也提高了滑片头部设计的灵活性，使得滑片的整体结构设计更加灵活，可以根据与滚子的配合关系选择不同的镶块和滑片头部组合结构，能够实现最佳的滑片结构设计，提高滑片的整体工作性能。
在本实施例中，由于镶件4是从通孔3中穿过，因此镶块2与镶件4固定为一体之后，相当于与滑片本体1之间形成了插销式结构，因此镶块2与镶件4在安装在滑片本体1上之后是基本上无法相对于滑片本体1发生相对运动的，相对于镶嵌在滑片本体1外侧的镶块结构而言，结构更加稳定可靠，不会发生镶块2在工作过程中受力而从滑片本体1上脱落的现象。
镶块2包括与滑片本体1贴合的贴合面和位于镶块2远离滑片本体1一侧的第二弧面6，两个第二弧面6位于同一柱面上。两个第二弧面6的结构与滚子9上的滚动槽11的结 构相匹配，因此能够与滚动槽11之间形成贴合配合，将传统的转子压缩机中的滑片与滚子线密封的结构形式改变为本公开中的弧面密封，从而有效阻断了滑片与滚子9之间的线泄漏通道，消除了泄漏，解决了低频冷量差的问题。
此外，在其中一个实施例中，通过镶块2与滚子9的滚动槽11之间滚动配合，因此能够利用镶块2对滑片的运动形成限制，从而有效解决滑片跟随性问题，可以保证带液工况以及轻工况下压缩机的稳定运行。
在其中一个实施例中，镶块2还包括侧连接面，侧连接面连接在贴合面和第二弧面6之间，并沿镶块2的长度方向延伸。通过增加侧连接面，可以增加镶块2的立面，从而降低镶块2的加工或者成型难度，提高成型效率，降低成型成本。
由于镶块2与滚动槽11的侧壁之间贴合配合，因此能够利用镶块2对滑片在滚动槽11内的滚动形成支撑，使得滑片由悬臂支撑变为了两端支撑，改善了滑片的受力，解决了高频和高压差下压缩机的磨损问题。
在一个实施例中，第一滑动面和第二滑动面上设置有嵌槽7，镶块2嵌设在嵌槽7内。通过增加嵌槽7，可以方便镶块2在滑片本体1上的安装固定，同时能够通过嵌槽7对镶块2在滑片本体1上的位置形成有效限位，利用嵌槽7的槽壁对镶块2形成止挡，使得镶块2在滑片运动过程中的受力更加分散，不易由于受力集中而发生损坏。
在本实施例中，滑片本体1的两个滑动侧面上对称开设有嵌入镶块2的嵌槽7，嵌槽7侧面为两个平行平面，两个平面间距为L1，两个平面限定了嵌槽7的宽度L1，两个嵌槽7的底部平面之间的距离为L2，在滑片本体1的远离嵌槽7的尾部设置有空缺，可以减小滑片本体1的质量，空缺的底部到滑片本体1头部的最小距离为L3，为了保证密封，L3需要满足以下条件：
L3≥2e+△
e为转子压缩机的偏心量，2e即为滑片最大行程，△为保证滑片侧面与气缸滑片槽密封所需要的最小密封距，一般取3～5mm，如图4和图5所示。
镶块2的第二弧面半径为r，贴合面宽度为L5，第二弧面到贴合面的最大距离为L4，其中两个侧连接面与第二弧面之间可以为圆角过渡连接，从而减小局部接触应力。
滑片本体1的头部包括第一弧面5，第一弧面5位于第二弧面6所在的柱面内侧；或，第一弧面5和第二弧面6位于同一柱面上。第一弧面5的结构设置受镶块2的结构影响，需要与镶块2的结构配合，实现与滚动槽11之间的密封配合。
在其中一个实施例中，镶块2的长度小于或等于滑片本体1的高度。
在其中一个实施例中，镶块2的长度为滑片本体1的高度方向上的长度。
在一个实施例中，镶块2和镶件4与滑片本体1成型为一体。镶块2的材料可以为金属材料或者陶瓷材料，同时圆弧面添加减磨耐磨涂层，减小摩擦系数，增大构件耐磨性，提高可靠性。
在其中一个实施例中，镶块2使用工程塑料件，工程塑料镶块直接与滑片组合为一个零件，即在滑片上直接附着工程塑料成型为镶块形状。
滑片本体1上还设置有从第一滑动面延伸至第二滑动面的通孔3，第一滑动面和第二滑动面上的镶块2通过位于通孔3内的镶件4固定在滑片本体1上。在本实施例中，滑片本体1的厚度为两个第一滑动面之间的距离，滑片本体1的高度为轴向方向上的高度。
该滑片本体1在与滚子9滚动配合侧的滑动面上设置镶块2，并使得镶块2通过位于滑片本体1上的通孔3内的镶件4固定在滑片本体1上，不仅可以通过镶块2阻断滑片和滚子9之间的泄漏，解决泄漏量较大的问题，而且能够改变滑片受力方式，降低滑片磨损。由于镶块2与滑片本体1之间通过位于通孔3内的镶件4固定连接，因此能够通过镶件4保证镶块2与滑片本体1之间的连接结构，有效增强镶块2在滑片本体1上的附着力，避免镶块2在滑片工作过程中从滑片本体1上滑落，提高滑片工作的可靠性。
结合参见图7至图13所示，根据本公开的实施例，泵体组件包括滑片、气缸8和滚子9，滑片为上述的滑片，气缸8包括滑槽10，滚子9包括滚动槽11，滑片的一端滑动设置在滑槽10内，滑片设置镶块2的一端活动设置在滚动槽11内，镶块2的外周面与滚动槽11的槽壁贴合。
滚子主体结构为空心柱体结构，内径R1，外径R2；端面靠近外圆侧开设圆柱形缺口，即滚动槽11，滚动槽11半径R，滚动槽11轴心到滚子轴心的距离为L；滚动槽11与滚子外圆面设置圆弧倒角r。滚子滚动槽11的尺寸同时满足以下要求：
L+R>R2；L-R>R1。
镶块2包括第二弧面6时，第二弧面6与滚动槽11的内周面相适配，能够更加有效地保证第二弧面6与滚动槽11之间的面密封效果。
滑片头部包括第一弧面5，且镶块2的长度小于滑片本体1的高度时，第一弧面5与滚动槽11的槽壁密封贴合。
当镶块2的长度小于滑片本体1的高度时，此时镶块2无法在长度方向的两端与滚子9之间形成密封，因此需要借助于滑片本体1来实现滑片与滚子9之间的密封，防止滑片两侧的空间连通。此种情况下，由于滑片本体1在高度方向上是与法兰或者隔板等密封的，因此，只需要保证滑片本体与滚动槽11的槽壁之间密封，就可以利用滑片本体1实现滑片与滚子9之间的密封配合，能够避免滑片两侧的高压腔和低压腔连通。此时，在一个实施 例中，滑片本体1头部第一弧面5的直径与滚动槽11的直径相同，可以保证滑片本体1的第一弧面5与滚动槽11的槽壁之间密封贴合，形成密封面。如图9和图10所示。
滑片头部包括第一弧面5，且镶块2的长度等于滑片本体1的高度时，第一弧面5与滚动槽11的槽壁密封贴合，或，第一弧面5与滚动槽11的槽壁之间形成间隔。
当镶块2的长度等于滑片本体1的高度时，此时镶块2在长度方向的两端能够与法兰或者隔板之间实现密封，在滚动面处能够与滚子9之间形成密封，因此不需要借助于滑片本体1来实现滑片与滚子9之间的密封，防止滑片两侧的空间连通。此种情况下，滑片本体1的第一弧面5可以与滚动槽11的槽壁密封接触，也可以与滚动槽11的槽壁间隔设置，均不会影响滑片对于两侧的高低压腔之间的隔离效果。在一个实施例中，滑片本体1的第一弧面5与滚动槽11的槽壁之间形成预设间隔，从而能够避免滑片本体1的第一弧面5与滚动槽11的槽壁接触，有效减小滑片与滚动槽11的接触面积，降低摩擦功耗。如图11和图12所示。
在一个实施例中，滚子9上沿径向设置有引压孔12，引压孔12的一端与滚动槽11连通，引压孔12的另一端与滚子9的内腔连通。
通过在滚子9的径向上增加引压孔12，能够在滑片头部引入壳体压力，抵消滑片尾部的壳体压力，减小沿滑片运动方向的载荷，提高滑片运动可靠性。
泵体组件的装配过程如下：
镶块2与滑片本体1配合，利用注塑等方式成型为一体。滑片头部与滚子9的滚动槽11配合，即镶块2的外圆弧面与滚子滚动槽11的圆弧面配合安装，而滑片头部与滚子滚动槽11的槽壁不接触；滑片尾部与滑槽10配合。为了保证镶块2相对于滑片本体1无相对运动，同时滚子9相对镶块2旋转运动，三种零件需要满足以下条件：
2*L4+L2＝2R
R＝r
L5＝L1
装配后，泵体内部低压腔、高压腔通过镶块2的外圆弧面与滚子的滚动槽11的圆弧面密封，属于面面配合，阻断了滑片与滚子9间的泄漏通道，消除了泄漏，解决了低频冷量差的问题；滑片头部仅相对滚子9旋转运动，解决滑片的跟随性问题，可保证带液工况，轻工况下压缩机稳定运行；滑片头尾分别由滚子9、滑槽10支撑，滑片由悬臂支撑变为了两端支撑，改善了滑片的受力，解决了高频和高压差下压缩机磨损问题；由于滚子的滚动槽11间接引入高压，与滑片尾部高压相互抵消，沿着滑片往复运动方向无气体压差带来的气体力，滑片往复运动仅需要克服摩擦力，此时滑片头部无需与滚子的滚动槽11接触，可 有效减小接触面，降低功耗。
根据本公开的实施例，压缩机包括上述的滑片，或上述的泵体组件。
根据本公开的实施例，空调器包括上述的滑片，或上述的泵体组件。
本领域的技术人员容易理解的是，在不冲突的前提下，上述各有利方式可以自由地组合、叠加。
以上仅为本公开的较佳实施例而已，并不用以限制本公开，凡在本公开的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本公开的保护范围之内。以上仅是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开技术原理的前提下，还可以做出若干改进和变型，这些改进和变型也应视为本公开的保护范围。

Claims (15)

  1. 一种滑片，其特征在于，包括滑片本体(1)，所述滑片本体(1)包括平行设置的第一滑动面和第二滑动面，所述第一滑动面和所述第二滑动面上分别设置有镶块(2)，位于所述第一滑动面上的所述镶块(2)和位于所述第二滑动面上的镶块(2)设置在所述滑片本体(1)的滑片头部两侧，并被所述滑片头部隔开。
  2. 根据权利要求1所述的滑片，其特征在于，所述镶块(2)包括与所述滑片本体(1)贴合的贴合面和位于所述镶块(2)远离所述滑片本体(1)一侧的第二弧面(6)，两个所述第二弧面(6)位于同一柱面上。
  3. 根据权利要求2所述的滑片，其特征在于，所述镶块(2)还包括侧连接面，所述侧连接面连接在所述贴合面和所述第二弧面(6)之间，并沿所述镶块(2)的长度方向延伸。
  4. 根据权利要求1所述的滑片，其特征在于，所述第一滑动面和所述第二滑动面上设置有嵌槽(7)，所述镶块(2)嵌设在所述嵌槽(7)内。
  5. 根据权利要求2所述的滑片，其特征在于，所述滑片本体(1)的头部包括第一弧面(5)，所述第一弧面(5)位于所述第二弧面(6)所在的柱面内侧；或，所述第一弧面(5)和所述第二弧面(6)位于同一柱面上。
  6. 根据权利要求1所述的滑片，其特征在于，所述镶块(2)的长度小于或等于所述滑片本体(1)的高度。
  7. 根据权利要求1所述的滑片，其特征在于，所述镶块(2)和所述镶件(4)与所述滑片本体(1)成型为一体。
  8. 根据权利要求1至7中任一项所述的泵体组件，其特征在于，所述滑片本体(1)上还设置有从所述第一滑动面延伸至所述第二滑动面的通孔(3)，所述第一滑动面和所述第二滑动面上的镶块(2)通过位于所述通孔(3)内的镶件(4)固定在所述滑片本体(1)上。
  9. 一种泵体组件，其特征在于，包括滑片、气缸(8)和滚子(9)，所述滑片包括滑片本体(1)，所述滑片本体(1)包括平行设置的第一滑动面和第二滑动面，所述第一滑动面和所述第二滑动面上分别设置有镶块(2)，位于所述第一滑动面上的所述镶块(2)和位于所述第二滑动面上的镶块(2)设置在所述滑片本体(1)的滑片头部两侧，并被所述滑片头部隔开，所述气缸(8)包括滑槽(10)，所述滚子(9)包括滚动槽(11)，所述滑片的一端滑动设置在所述滑槽(10)内，所述滑片设置镶块(2)的一端活动设置在所述滚动槽(11)内，所述镶块(2)的外周面与所述滚动槽(11)的槽壁贴合。
  10. 根据权利要求9所述的泵体组件，其特征在于，所述镶块(2)包括第二弧面(6) 时，所述第二弧面(6)与所述滚动槽(11)的内周面相适配。
  11. 根据权利要求9所述的泵体组件，其特征在于，所述滑片头部包括第一弧面(5)，且所述镶块(2)的长度小于所述滑片本体(1)的高度时，所述第一弧面(5)与所述滚动槽(11)的槽壁密封贴合。
  12. 根据权利要求9所述的泵体组件，其特征在于，所述滑片头部包括第一弧面(5)，且所述镶块(2)的长度等于所述滑片本体(1)的高度时，所述第一弧面(5)与所述滚动槽(11)的槽壁密封贴合，或，所述第一弧面(5)与所述滚动槽(11)的槽壁之间形成间隔。
  13. 根据权利要求9至12中任一项所述的泵体组件，其特征在于，所述滚子(9)上沿径向设置有引压孔(12)，所述引压孔(12)的一端与所述滚动槽(11)连通，所述引压孔(12)的另一端与所述滚子(9)的内腔连通。
  14. 一种压缩机，其特征在于，包括滑片或泵体组件，所述滑片包括滑片本体(1)，所述滑片本体(1)包括平行设置的第一滑动面和第二滑动面，所述第一滑动面和所述第二滑动面上分别设置有镶块(2)，位于所述第一滑动面上的所述镶块(2)和位于所述第二滑动面上的镶块(2)设置在所述滑片本体(1)的滑片头部两侧，并被所述滑片头部隔开；
    所述泵体组件包括滑片、气缸(8)和滚子(9)，所述滑片包括滑片本体(1)，所述滑片本体(1)包括平行设置的第一滑动面和第二滑动面，所述第一滑动面和所述第二滑动面上分别设置有镶块(2)，位于所述第一滑动面上的所述镶块(2)和位于所述第二滑动面上的镶块(2)设置在所述滑片本体(1)的滑片头部两侧，并被所述滑片头部隔开，所述气缸(8)包括滑槽(10)，所述滚子(9)包括滚动槽(11)，所述滑片的一端滑动设置在所述滑槽(10)内，所述滑片设置镶块(2)的一端活动设置在所述滚动槽(11)内，所述镶块(2)的外周面与所述滚动槽(11)的槽壁贴合。
  15. 一种空调器，其特征在于，包括滑片或泵体组件，所述滑片包括滑片本体(1)，所述滑片本体(1)包括平行设置的第一滑动面和第二滑动面，所述第一滑动面和所述第二滑动面上分别设置有镶块(2)，位于所述第一滑动面上的所述镶块(2)和位于所述第二滑动面上的镶块(2)设置在所述滑片本体(1)的滑片头部两侧，并被所述滑片头部隔开；
    所述泵体组件包括滑片、气缸(8)和滚子(9)，所述滑片包括滑片本体(1)，所述滑片本体(1)包括平行设置的第一滑动面和第二滑动面，所述第一滑动面和所述第二滑动面上分别设置有镶块(2)，位于所述第一滑动面上的所述镶块(2)和位于所述第二 滑动面上的镶块(2)设置在所述滑片本体(1)的滑片头部两侧，并被所述滑片头部隔开，所述气缸(8)包括滑槽(10)，所述滚子(9)包括滚动槽(11)，所述滑片的一端滑动设置在所述滑槽(10)内，所述滑片设置镶块(2)的一端活动设置在所述滚动槽(11)内，所述镶块(2)的外周面与所述滚动槽(11)的槽壁贴合。
PCT/CN2020/111242 2019-11-04 2020-08-26 滑片、泵体组件、压缩机和空调器 WO2021088474A1 (zh)

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