WO2020155923A1 - 一种转子式压缩组件、压缩机与空调设备 - Google Patents

一种转子式压缩组件、压缩机与空调设备 Download PDF

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Publication number
WO2020155923A1
WO2020155923A1 PCT/CN2019/127248 CN2019127248W WO2020155923A1 WO 2020155923 A1 WO2020155923 A1 WO 2020155923A1 CN 2019127248 W CN2019127248 W CN 2019127248W WO 2020155923 A1 WO2020155923 A1 WO 2020155923A1
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Prior art keywords
groove
cylinder
piston
manufacturing
sliding
Prior art date
Application number
PCT/CN2019/127248
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English (en)
French (fr)
Chinese (zh)
Inventor
庄希平
林国富
郑贺
Original Assignee
宁波甬微集团有限公司
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Publication date
Application filed by 宁波甬微集团有限公司 filed Critical 宁波甬微集团有限公司
Priority to KR1020217021873A priority Critical patent/KR102489151B1/ko
Priority to JP2021539456A priority patent/JP2022518158A/ja
Publication of WO2020155923A1 publication Critical patent/WO2020155923A1/zh

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Classifications

    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
    • 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
    • F04C2240/00—Components
    • F04C2240/10—Stators
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/104—Micromachining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/20—Manufacture essentially without removing material
    • F05B2230/26—Manufacture essentially without removing material by rolling

Definitions

  • the invention belongs to the technical field of compressors, and specifically relates to a sliding vane assembly, a rotor-type compression assembly, a compressor, and air conditioning equipment.
  • Rotary compressors are widely used due to their high efficiency, compact structure, small size and light weight, such as the interior of household air conditioners.
  • Compression components are an important part of a rotary compressor.
  • Compression components mainly include cylinders, pistons, sliding vanes and crankshafts.
  • the piston is located inside the cylinder and is sleeved on the crankshaft along the axial direction of the crankshaft.
  • the cylinder is provided with a spring hole and a sliding vane groove, and a spring is arranged in the spring hole.
  • the sliding vane is placed in the sliding vane groove and the shape is adapted to the sliding vane groove. The end of the sliding vane can compress the spring and the sliding vane can be in the sliding vane groove. Move in the radial direction of the cylinder.
  • the head of the sliding vane When the compression mechanism is working, the head of the sliding vane is always in close contact with the piston under the force of the spring at the tail end to form a dynamic seal.
  • the inside of the cylinder is divided into a suction cavity and a compression cavity. Driven by the crankshaft, the suction and The process of compression and exhaust.
  • the existing cylinders are all irregular in shape, and the cross section perpendicular to the axial direction is a circular ring part plus a convex part, and the axial direction refers to a direction parallel to the axial direction of the crankshaft.
  • the compressor cylinder 3 includes a circular ring portion and a convex portion 5.
  • the sliding plate 1, the piston 2 and the eccentric portion of the crankshaft are accommodated in the circular ring, and the convex portion 5 is used to set a spring hole 7. With spring 6.
  • This kind of compression component has the following problems:
  • a spring hole needs to be provided on the cylinder, and a convex part must be added to accommodate the spring and the spring hole structure. Not only increases the amount of raw materials used, but also increases the processing procedures, which complicates the processing technology and increases the production cost and processing difficulty of the cylinder;
  • the outer peripheral wall of the piston is provided with an axially penetrating groove.
  • the sliding plate has a head end and a tail end. The shape of the head end matches the groove. It is oscillatingly fitted in the groove to form a hinged connection between the sliding piece and the piston.
  • the cross-sectional shape of the sliding vane disclosed in the Chinese patent document with the application number CN89202761.4 is a composite of a rectangular and a round head end.
  • a circular hole that matches the shape of the cylindrical head end of the sliding vane is provided on the piston.
  • the shape of the cylinder has not changed, but it is still a ring part plus a convex part, and the shape is irregular, which does not solve the current problems of material waste and complex processing procedures;
  • the present invention provides a sliding vane assembly including a sliding vane, characterized in that the sliding vane assembly further includes a connecting piece for connecting the sliding vane and the piston;
  • One end of the sliding plate is provided with a second groove axially penetrating in a direction parallel to the axial direction of the piston;
  • the other end of the sliding plate is matched with the sliding plate guide groove provided on the cylinder, and can move along the radial direction of the cylinder in the sliding plate guide groove;
  • One end of the connecting piece is provided with a second protrusion adapted to the second groove, and the second protrusion is fitted into the second groove so that the connecting piece and the sliding The pieces can be connected swingably;
  • the other end of the connecting piece is provided with a first protrusion that matches the first groove axially through the outer peripheral wall of the piston, and the first protrusion can be fitted into the first groove to make
  • the connecting member is swingably connected with the piston.
  • the cross section of the first groove is an open first arc.
  • the width of the opening is smaller than the diameter of the first arc.
  • the cross section of the second groove is an open second arc.
  • the width of the opening is smaller than the diameter of the second arc.
  • the present invention also provides a rotor-type compression assembly comprising the above-mentioned sliding vane assembly, which further includes a cylinder and a piston.
  • the cylinder is provided with a sliding vane guide groove, and the sliding vane is placed in the sliding vane guide groove and can be edged in the sliding vane guide groove.
  • the radial movement of the cylinder; the outer circumferential wall of the piston is provided with an axially penetrating first groove, the first groove is matched with the first protrusion on the connecting piece, and the first protrusion can be fitted In the first groove, so that the connecting member and the piston are swingably connected.
  • the axial direction refers to a direction parallel to the axial direction of the crankshaft.
  • the cylinder has a circular ring shape along a cross section perpendicular to the axial direction.
  • the cylinder is also provided with a hole communicating with the outside of the cylinder, which can be used to suck in or discharge gas from the cylinder, or to inject liquid into the cylinder.
  • the present invention also provides a method for preparing the compression assembly, which includes the following steps:
  • the method further includes inserting the first protrusion of the connecting piece into the first groove in the axial direction, inserting the second protrusion of the connecting piece into the second groove, and inserting the sliding piece into the sliding piece guide groove.
  • the manufacturing process of the cylinder is not limited.
  • the cylinder is manufactured by using a pipe, such as a steel pipe or a cast pipe.
  • the method for manufacturing the cylinder includes the following steps:
  • step (2) Carry out rough machining on the pipe obtained in step (1) to process a structural unit on the cylinder, the structural unit including sliding vane grooves, suction holes and other structures;
  • the manufacturing method of the cylinder includes the following steps:
  • step (2) Performing rough machining on the cylinder blank obtained in step (1) to process structural units on the cylinder, the structural units including sliding vane grooves, suction holes and other structures;
  • the manufacturing process of the connecting member is not limited. As a preference, it is formed by precision cold drawing or precision cold drawing, which specifically includes the following steps:
  • the cut surface is ground.
  • the manufacturing process of the piston is not limited. As a manufacturing process, the piston body is first manufactured, and then the first groove is manufactured on the piston body. In this manufacturing process, the method of manufacturing the first groove is not limited, and preferably includes the following steps:
  • Drilling Drilling a hole near the outer circumference of the piston body, and the hole penetrates the piston body in the axial direction;
  • the manufacturing process of the sliding sheet is not limited.
  • the slide body is first manufactured, and then a second groove is formed on the slide body.
  • the method for manufacturing the second groove is not limited.
  • the method for preparing the needle roller groove in patent document CN103953547A can be used, which specifically includes the following steps:
  • Drilling Drill a hole at one end of the slide body, and the hole penetrates the slide body in the axial direction;
  • step (3) Cutting: cutting the hole obtained in step (2), the cutting line direction is parallel to the axial direction, and a part of the hole is cut to obtain the sliding sheet with the second groove.
  • the step of inserting the first protrusion of the connector into the first groove in the axial direction, and inserting the second protrusion of the connector into the second groove is preferably, the step of inserting the first protrusion of the connector into the first groove in the axial direction, and inserting the second protrusion of the connector into the second groove.
  • the present invention has the following advantages:
  • the cross-section of the cylinder is circular and has a regular shape, which can further reduce the manufacturing cost and manufacturing difficulty.
  • the pipes can be used to produce the required cylinders through cutting, slotting, punching and other processes, thus greatly reducing the production cost of the cylinder, simplifying the production process, and enabling large-scale production;
  • the sliding plate and the piston are connected together by a connecting piece, rather than by the action of the spring force. Therefore, on the one hand, when the compression assembly works, no additional energy is needed to overcome the spring force, and energy loss is avoided. , Thereby greatly improving the energy conversion rate of the compression assembly; on the other hand, there is no need to set spring holes and springs in the cylinder, which greatly reduces the thickness of the cylinder and reduces the manufacturing cost and difficulty of the cylinder;
  • a connecting piece is arranged between the sliding plate and the piston to realize the articulation form.
  • the sliding piece, the piston and the connecting piece are independent of each other.
  • the two ends of the connecting piece are convex parts.
  • the sliding piece and the piston are respectively provided with grooves along the axial direction.
  • the sliding piece , The piston and the connecting piece form a combined component, which makes the sliding plate and the piston form an articulation.
  • the piston is driven by an eccentric crankshaft in the cylinder to make a circular motion. Under the action of the connecting piece, the sliding plate is driven to move back and forth.
  • the sliding plate, the piston and the connecting member are independent of each other, and can be independently manufactured, and the process is simple.
  • the connecting piece can be processed and formed by cold drawing or cold drawing, which greatly simplifies the process and can be produced in batches.
  • Pistons and sliding vanes can make full use of the existing manufacturing process and be manufactured according to actual structural requirements and accuracy requirements.
  • the piston body and the sliding plate body can be produced first, and then the piston with the first groove is obtained by drilling, reaming, honing and grinding, and the belt is obtained by drilling, reaming, honing and cutting. Slider with second groove.
  • the sliding plate since the spring setting is eliminated, the sliding plate does not need to be equipped with a specially designed tail groove structure to cooperate with the spring compression, which simplifies the processing technology; at the same time, the length of the sliding plate can be reduced correspondingly, saving materials, Reduce production costs.
  • the compression assembly of the present invention has a simple structure, a simple manufacturing process, can reduce production costs, can be produced in a large-scale and precise manner, can improve energy conversion efficiency, can be used in a rotor compressor, and has a wide range of application prospects in air conditioning equipment .
  • Fig. 1 is a schematic diagram of the structure of an existing compression assembly.
  • Fig. 2 is a schematic diagram of the structure of the compression assembly in embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of the structure of the combined part formed by the sliding plate, the piston and the connecting piece in FIG. 2.
  • Fig. 4 is a schematic diagram of the structure of each part of the combined component of Fig. 3.
  • Fig. 5 is an enlarged view of the piston in Fig. 2.
  • Fig. 6 is an enlarged view of the sliding plate in Fig. 2.
  • Figure 7 is a schematic diagram of the manufacturing process of the piston in Example 1 of the present invention.
  • Fig. 8 is a schematic diagram of drilling a hole on the sliding plate body in Embodiment 1 of the present invention.
  • Fig. 9 is a cross-sectional structure diagram of the sliding plate body in Fig. 8 and a cross-sectional structure diagram of the sliding plate obtained after cutting.
  • Fig. 10 is a schematic cross-sectional view of the die hole in Example 1 of the present invention, and a schematic view of the axial side view of the obtained connector.
  • Figure 11 is a schematic diagram of the manufacturing process of the cylinder in Example 1 of the present invention.
  • the rotor compression assembly includes a sliding vane 1, a piston 2 and a cylinder 3.
  • the cylinder 3 has a circular ring shape along the section perpendicular to the axial direction.
  • the cylinder 3 is provided with a sliding vane guide groove, namely the sliding vane groove 8.
  • the sliding vane 1 is placed in the sliding vane groove and can move in the axial direction in the sliding vane groove.
  • the cylinder is also provided with a hole 9 communicating with the outside of the cylinder, which can be used to suck in or discharge gas from the cylinder, or to inject liquid into the cylinder.
  • the piston 2 is inside the cylinder 3 and is sleeved on the crankshaft along the axial direction of the crankshaft.
  • the sliding plate 1, the piston 2 and the connecting piece 3 form a combined component.
  • the outer peripheral wall of the piston 2 is provided with a first groove 11 which penetrates in the axial direction.
  • One end of the sliding sheet 1 is provided with a second groove 12 extending axially therethrough.
  • Both ends of the connecting member 10 are respectively provided with protrusions, that is, one end of the connecting member is provided with a first protrusion 13 and the other end is provided with a second protrusion 14.
  • the sliding vane 1 and the piston 2 form a dynamic seal through the connecting piece 3, which divides the inside of the cylinder into a suction cavity and a compression cavity. Driven by the crankshaft, the process of suction, compression and exhaust is completed.
  • the shape of the first protrusion 13 matches the first groove 11 and is swayably fitted in the first groove.
  • the shape of the second protrusion 14 matches the second groove 12, and is swayably fitted in the second groove.
  • the cross section of the first groove 11 is an open first arc 15, and the width of the opening portion 16 is smaller than the diameter of the first arc 15.
  • the cross section of the second groove 12 is an open second arc 17, and the width of the opening portion 18 is smaller than the diameter of the second arc 17.
  • the production of the compression component includes the following processes:
  • the piston body 20 is made, and then a first groove is made on the piston body, as follows:
  • Drilling As shown in Figure a in Figure 7, drill a hole at a position close to the outer circumference of the piston body 20, and the hole 21 penetrates the piston body 20 in the axial direction;
  • the slide body 19 is made, and then a second groove is made at one end of the slide body 19, as follows:
  • Drilling As shown in Fig. 8, a hole 22 is drilled along one end of the sliding plate body 19, and the hole 22 penetrates the sliding plate body 19 in the axial direction;
  • the connecting parts are processed and formed by precision cold drawing or precision cold drawing at one time, as follows:
  • the steel pipe 24 is used, and the steel pipe is cut in the axial direction to the height of the cylinder 3;
  • step (1) The steel pipe cut in step (1) is rough-processed, and the sliding blade groove is processed by a broaching machine, and then punched to obtain the sliding blade groove 8 and the hole 9 structure;
  • step (3) Finishing the rough-machined part obtained in step (2) to obtain the cylinder 3.
  • the structure of the rotor-type compression assembly is the same as that of embodiment 1, and its preparation process is basically the same as that of embodiment 1, except that the preparation process of cylinder 3 is as follows:

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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)
PCT/CN2019/127248 2019-01-31 2019-12-21 一种转子式压缩组件、压缩机与空调设备 WO2020155923A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020217021873A KR102489151B1 (ko) 2019-01-31 2019-12-21 로터형 압축 어셈블리의 제작 방법
JP2021539456A JP2022518158A (ja) 2019-01-31 2019-12-21 ロータリーコンプレッションアセンブリ、コンプレッサー及び空調設備

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910100517.0A CN109667758A (zh) 2019-01-31 2019-01-31 一种转子式压缩组件、压缩机与空调设备
CN201910100517.0 2019-01-31

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WO2020155923A1 true WO2020155923A1 (zh) 2020-08-06

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JP (1) JP2022518158A (ko)
KR (1) KR102489151B1 (ko)
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CN109667758A (zh) * 2019-01-31 2019-04-23 宁波甬微集团有限公司 一种转子式压缩组件、压缩机与空调设备

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