WO2017181825A1 - 球形压缩机 - Google Patents

球形压缩机 Download PDF

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Publication number
WO2017181825A1
WO2017181825A1 PCT/CN2017/078509 CN2017078509W WO2017181825A1 WO 2017181825 A1 WO2017181825 A1 WO 2017181825A1 CN 2017078509 W CN2017078509 W CN 2017078509W WO 2017181825 A1 WO2017181825 A1 WO 2017181825A1
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WO
WIPO (PCT)
Prior art keywords
piston
shaft
turntable
hole
spherical
Prior art date
Application number
PCT/CN2017/078509
Other languages
English (en)
French (fr)
Inventor
王陆一
李正平
Original Assignee
西安正安环境技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610243847.1A external-priority patent/CN105756932B/zh
Priority claimed from CN201620333567.5U external-priority patent/CN205559282U/zh
Application filed by 西安正安环境技术有限公司 filed Critical 西安正安环境技术有限公司
Priority to ES17785310T priority Critical patent/ES2901014T3/es
Priority to EP17785310.8A priority patent/EP3447293B1/en
Priority to JP2019506772A priority patent/JP6753030B2/ja
Publication of WO2017181825A1 publication Critical patent/WO2017181825A1/zh
Priority to US16/166,098 priority patent/US10774834B2/en

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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
    • F04C21/00—Oscillating-piston pumps specially adapted for elastic fluids
    • F04C21/005—Oscillating-piston pumps specially adapted for elastic fluids the piston oscillating in the space, e.g. around a fixed point
    • 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
    • F04C18/48—Rotary-piston pumps with non-parallel axes of movement of co-operating members
    • 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
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
    • 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
    • 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
    • F04C2240/80—Other components

Definitions

  • the invention patent relates to a spherical compressor.
  • the spherical compressor is a new type of variable-capacity mechanism newly invented in recent years. Its advantages are no inlet/exhaust valve, less moving parts, less vibration, high mechanical efficiency, reliable sealing, etc.
  • the application research and development has been continuously developed and improved, and has obtained a number of patents, such as patent number 03114505.1 (patent name is "a variable-capacity mechanism for compressors"), 200610104569.8 (patent name is "can A spherical compressor that realizes multi-stage compression”), 201010264211.8 (patent name is "an automatic compensation mechanism for hinge seals for spherical compressors"); spherical compressors can be widely used in gas compressors, refrigerators and refrigeration Various types of power machinery based on spherical compressors are being industrialized in various fields such as air-conditioning compressors and pump machinery.
  • a guide sleeve is arranged on the pin seat, and a concave slide channel is arranged on the spherical surface of the cylinder block or the lower spherical surface of the cylinder block.
  • the concave slide track is distributed during the rotation of the turntable, and the guide sleeve is disposed under the corresponding spherical surface of the cylinder block or the cylinder block.
  • the concave slide requires high precision to ensure a good fit between the guide sleeve and the concave slide, and a cooling mechanism is required to prevent the guide sleeve from being engaged during the movement of the anti-seize mechanism.
  • the concave slide friction generates heat, which increases manufacturing and running costs.
  • the object of the present invention is to design a new type of spherical compressor, redesigning the original spherical compressor so that the spherical compressor becomes a dead point-free mechanism in structure.
  • the technical solution of the present invention is a spherical compressor, which comprises:
  • a cylinder body having a hemispherical inner cavity, and a rotary shaft hole penetrating through the cylinder is disposed on the cylinder body;
  • a cylinder head having a hemispherical inner cavity, the cylinder head being combined with the cylinder to form a spherical inner cavity at the cylinder head
  • the inner spherical surface is provided with an intake passage, an exhaust passage and a piston shaft hole, and the intake passage and the exhaust passage on the cylinder cover are respectively arranged in an annular space perpendicular to the axis of the piston shaft hole, the intake passage and the exhaust passage Connected to the air inlet and exhaust holes outside the cylinder on the cylinder head;
  • a piston having a spherical top surface, two angled sides, and a piston pin seat at a lower portion of the two sides, the spherical top surface of the piston having the same spherical center as the spherical inner cavity and forming a sealing dynamic fit;
  • the piston pin seat has a semi-cylindrical structure, the central portion of the semi-cylindrical has a groove, and a piston pin hole is formed in a central axis of the semi-cylinder;
  • a piston shaft is protruded in the center of the spherical top surface of the piston, and the axis of the piston shaft passes through The center of the spherical top surface of the piston;
  • a turntable having a turntable pin holder corresponding to the piston pin seat at an upper portion thereof; an outer peripheral surface between the upper portion and the lower end surface of the turntable is a turntable spherical surface, and the turntable spherical surface has the same spherical center and close to the spherical inner cavity
  • the spherical inner cavity forms a sealing dynamic fit;
  • the two ends of the turntable pin seat are semi-cylindrical grooves, and the middle part is a convex semi-cylindrical body;
  • a semi-cylindrical pin hole is arranged on a central axis of the semi-cylindrical; at the lower end center of the turntable Projecting a turntable shaft, the turntable shaft passing through the spherical center of the turntable;
  • the center pin is inserted into the pin hole formed by the matching of the turntable pin seat and the piston pin seat to form a cylindrical hinge, and a sealing dynamic fit is formed between the mating faces of the cylindrical hinge;
  • the axis of the piston shaft hole and the shaft hole of the rotary disk pass through the center of the spherical inner cavity, the angle between the axis of the piston shaft hole and the shaft hole of the rotary disk is ⁇ ; and is selected between the piston shaft and the piston shaft hole or the turntable
  • a sliding groove swinging mechanism is arranged at one of the shaft and the rotary shaft hole, and a sliding groove swinging mechanism between the piston shaft and the piston shaft hole causes the piston to swing along the axis of the sliding groove relative to the piston shaft hole, and the turntable shaft and the turntable
  • the chute swinging mechanism between the shaft holes oscillates the turntable along the axis of the chute relative to the shaft hole of the turntable, and the amplitude of the swing is 2 ⁇ ; the driving turntable shaft rotates, and the piston and the turntable swing relative to each other around the center pin, and the upper end surface of the turntable Forming a V1 working chamber and a V2 working chamber with alternating volumes between the two sides of the piston and the s
  • a cylindrical rotating sleeve is arranged in the piston shaft hole on the cylinder head, and the outer cylinder of the rotating sleeve is coaxial with the piston shaft hole, and the rotating sleeve can rotate around the axis of the piston shaft hole, and an edge is arranged on the end surface of the rotating sleeve a rotating sleeve chute in the direction of the center pin of the center pin, the two sides of the rotating sleeve chute are symmetrically disposed on both sides of the plane of the axis of the center pin and the axis of the piston shaft hole; a sliding shoe is fixedly disposed at the end of the piston shaft The shoe is placed in the sleeve sliding slot, and the two sides of the sliding shoe are attached to the two sides of the rotating sleeve sliding slot to form a dynamic fit along the two sides of the rotating sleeve sliding groove, and the rotating sleeve sliding groove and the piston shaft on the rotating sleeve
  • the upper sliding shoe forms
  • the end of the piston shaft is provided with a piston shaft pin hole.
  • a sliding shaft hole of the sliding shoe and a sliding pin hole for matching with the pin hole of the piston shaft are arranged.
  • the piston shaft passes through the piston shaft hole and communicates with the spherical inner cavity.
  • the fixing pin is inserted into the pin hole formed by the matching pin hole of the sliding shoe and the pin hole of the piston shaft, so that the sliding shoe is fixed at the end of the piston shaft, and the two sides of the sliding shoe are flat planes, sliding The two sides of the shoe are respectively matched with the two sides of the rotating sleeve to form a dynamic fit;
  • the turntable shaft extends out of the cylinder and is connected with the power mechanism as a power input end of the compressor;
  • a spindle is connected to the lower end of the cylinder through a spindle bracket, and the upper end of the spindle is placed in the shaft hole of the rotary disk.
  • the outer cylinder of the upper end of the spindle is coaxial with the shaft hole of the rotary disk, and the spindle rotates around the shaft hole of the rotary disk, and is disposed on the upper end surface of the spindle.
  • a spindle chute along the axis of the center pin the two sides of the main shaft chute are symmetrically disposed on both sides of the plane of the axis of the center pin and the axis of the shaft of the turntable;
  • a sliding shoe is fixedly disposed at the end of the turntable shaft, the sliding shoe Placed in the spindle chute, the two sides of the shoe are attached to the two sides of the main shaft chute and slide along the two sides of the main shaft chute to form a dynamic fit.
  • the main shaft chute on the main shaft and the sliding shoe on the turntable shaft form a chute swing. mechanism
  • the lower end of the main shaft is connected to the power mechanism
  • the end of the turntable shaft is provided with a turntable pin hole.
  • a slide shaft hole and a shoe pin hole matched with the pin hole of the turntable are arranged.
  • the turntable shaft passes through the shaft hole of the turntable and communicates with the spherical inner cavity.
  • the fixing pin is inserted into the pin hole formed by the pin hole of the shoe and the pin hole of the turntable to fix the shoe to the end of the turntable shaft, and the two sides of the shoe are flat planes, sliding
  • the two sides of the shoe are respectively matched with the two sides of the main shaft chute to form a dynamic fit;
  • the piston shaft hole on the cylinder head penetrates outside the cylinder, and the piston shaft extends from the piston shaft hole and is connected with the power mechanism as a power input end of the compressor;
  • the piston comprises a piston insert
  • the piston insert is a thick and thin fan-shaped block structure on both sides, which is embedded in the central groove of the piston pin seat of the piston, and the cylindrical surface shape and the turntable protrusion of the piston insert
  • the semi-cylindrical shape is adapted to form a sealing dynamic fit
  • the top surface of the piston insert projection is an outer cylindrical surface adapted to the bottom surface of the piston pin seat groove of the piston, and the two sides of the piston insert are flat with both sides of the piston
  • the two end faces of the piston insert form a sealing dynamic fit with the two side walls of the central portion of the piston pin seat.
  • the spherical compressor described in this patent is a dead pointless mechanism
  • the spherical compressor described in this patent has a simple structure, a small number of parts, and requires low processing precision;
  • Figure 1 is a schematic view showing the structure of a first embodiment of the present invention
  • Figure 2 A-A cross-sectional view of Figure 1;
  • Figure 3 a cross-sectional view taken along line B-B of Figure 2;
  • Figure 4 is a schematic view showing the structure of a cylinder head according to a first embodiment of the present invention
  • Figure 5 cross-sectional view taken along line C-C of Figure 4.
  • Figure 6 is a cross-sectional view taken along line D-D of Figure 4.
  • Figure 7 is a schematic view showing the structure of a cylinder body according to a first embodiment of the present invention.
  • Figure 8 is a cross-sectional view taken along line E-E of Figure 7;
  • Figure 9 Schematic diagram of the structure of the rotating sleeve
  • Figure 10 Schematic diagram of the structure of the shoe
  • Figure 11 is a schematic view showing the structure of a piston of a first embodiment of the present invention.
  • Figure 12 is a schematic view showing the structure of a turntable according to a first embodiment of the present invention.
  • Figure 13 Schematic diagram of the piston insert structure
  • Figure 14 is a schematic view showing the structure of a second embodiment of the present invention.
  • Figure 15 is a cross-sectional view taken along line G-G of Figure 14;
  • Figure 16 is a cross-sectional view taken along line F-F of Figure 14;
  • Figure 17 is a schematic view showing the structure of a piston of a second embodiment of the present invention.
  • Figure 18 is a schematic view showing the structure of a turntable according to a second embodiment of the present invention.
  • Figure 19 is a schematic view showing the structure of a spindle of a second embodiment of the present invention.
  • Figure 20 is a schematic view showing the structure of a cylinder head according to a second embodiment of the present invention.
  • Figure 21 a cross-sectional view taken along line H-H of Figure 20;
  • Figure 22 is a cross-sectional view taken along line I-I of Figure 20;
  • Figure 23 is a schematic view showing the structure of a cylinder block of a second embodiment of the present invention.
  • FIG. 13 are diagrams showing a first embodiment of the present patent.
  • the spherical compressor of the present patent includes a cylinder head 1, a cylinder block 2, a piston 3, and a center pin 4.
  • the turntable 5, etc., the cylinder block 2 and the cylinder head 1 have a hemispherical inner cavity, and the cylinder block 2 and the cylinder head 1 are fixedly connected by screws to form a casing of a spherical compressor having a spherical inner cavity; on the inner spherical surface of the cylinder head 1
  • An intake passage 103, an exhaust passage 104 and a piston shaft hole 105 are provided;
  • the cylinder 2 is provided with a rotary shaft hole 201 penetrating the outside of the cylinder, one side of the rotary shaft hole 201 is connected to the spherical inner chamber, and the other side is
  • a bearing housing hole is provided, the bearing housing hole is coaxial with the rotary shaft hole 201; the axis
  • the piston 3 has a spherical top surface, two angled side surfaces, and a piston pin seat at the lower side of the two sides.
  • the spherical spherical top surface of the piston and the spherical cavity formed by the cylinder block 2 and the cylinder head 1 are formed.
  • the piston pin seat has a semi-cylindrical structure with a through-going piston pin hole 302 on the central axis of the semi-cylindrical; an open position is provided on the piston pin seat at the lower portion of the piston 3,
  • a fan-shaped cavity is formed on the piston pin seat of the piston 3.
  • the opening of the piston 3 is located in the middle of the piston pin seat and is perpendicular to the axis of the piston pin hole 302 of the piston pin seat.
  • the opening width of the piston 3 and the turntable pin seat The width of the semi-cylindrical body is adapted; the turntable 5 has a turntable pin holder corresponding to the piston pin seat at the upper portion thereof, and the outer peripheral surface between the upper portion and the lower end surface of the turntable 5 is a turntable spherical surface, the turntable spherical surface and the spherical inner portion
  • the cavity has the same spherical core and close to the spherical cavity to form a sealing dynamic fit;
  • the two ends of the turntable pin seat are semi-cylindrical grooves, the middle part is a convex semi-cylindrical, and a turntable pin is arranged at the center of the semi-cylindrical Hole 502; centered at the lower end of the turntable 5
  • the rotary shaft 301 is inserted into the rotary shaft hole 201 of the cylinder 2 and the cylinder 2 Forming a rotating pair;
  • the center pin 4 is inserted into the pin hole formed by the matching of the turntable pin seat and the piston pin seat to form a cylindrical hinge, and a sealing dynamic fit is formed between the mating faces of the cylindrical hinge, and the piston 3 and the turntable 5 pass through the column
  • the surface hinge forms a sealed dynamic connection, and a sealed dynamic fit is formed between the two ends of the cylindrical hinge and the spherical inner cavity;
  • the piston shaft hole 105 on the cylinder head 1 communicates with the spherical inner cavity of the cylinder head 1 through a through hole.
  • the radial dimension of the through hole is smaller than the diameter of the piston shaft hole 105, and a circular positioning surface is formed at the lower end of the piston shaft hole 105.
  • a cylindrical sleeve 6 is disposed on the piston shaft hole 105 of the cylinder head 1, and the sleeve 6 is placed in the piston shaft hole 105.
  • the end surface of the sleeve 6 is fitted with the annular positioning surface, and the outer cylinder and the piston of the sleeve 6 are assembled.
  • the shaft hole 105 is coaxial, and the rotating sleeve 6 is rotatable about the axis of the piston shaft hole 105.
  • a rotating sleeve chute 601 which is slidable along the axial direction of the center pin 4 is disposed on the end surface of the rotating sleeve 6; Both sides of the chute 601 serve as sliding working faces symmetrically disposed on both sides of the plane of the center pin 4 and the plane of the axis of the piston shaft hole 105 on the cylinder head 1; the shoe shaft hole is provided at the center of the shoe 14 141, as shown in FIG.
  • the two sides of the shoe 14 are flat planes, and a piston shaft pin hole 303 is disposed at an end of the piston shaft 301, and a shoe pin hole 142 is disposed at a corresponding position of the shoe 14, the piston.
  • the shoe 14 is fixed to the end of the piston shaft 301 by the fixing pin 10; the two sides of the shoe 14 are respectively opposite to the sleeve sliding groove 601
  • the side panels are slid along the two sides of the sleeve sliding groove 601 to form a dynamic fit; the two sides of the shoe 14 are parallel to the axis of the piston shaft hole 105 and the plane of the axis of the center pin 4; the sleeve on the sleeve 6
  • the sliding groove 601 and the sliding shoe 14 on the piston shaft 301 form a sliding groove swinging mechanism;
  • the rotating shaft hole 501 of the rotating shaft 501 inserted into the cylinder 2 forms a rotating pair with the cylinder 2; the driving rotary shaft 501 rotates, and the rotating plate 5 passes through the cylinder
  • the hinge drives the piston 3 to move, the movement of the piston 3 is the rotation about the axis of the piston shaft hole 105 and the relative turntable
  • the piston 3 is swung about the axis of the center pin 4 with respect to the turntable 5, and a V1 working chamber 1001 and a V2 working chamber are formed between the upper end surface of the turntable 5, the two side faces of the piston 3 and the spherical inner cavity.
  • 1002; the intake passage 103 and the exhaust passage 104 on the cylinder head 1 are respectively disposed in an annular space perpendicular to the axis of the piston shaft hole 105, and the intake passage 103 and the exhaust passage 104 are respectively connected to two on the cylinder head 1.
  • the outer cylinder intake hole 101 and the exhaust hole 102 are connected; the intake and exhaust control is realized by the rotation of the piston 3, and the corresponding working chamber and the intake passage 103 or exhaust gas are required when each working chamber requires exhaust or intake air.
  • Channel 104 is connected.
  • the turntable shaft 501 extends out of the cylinder 2 and is connected to the power mechanism as a power input end of the compressor; the inner side of the portion of the turntable shaft 501 and the turntable shaft hole 201 on the cylinder 2 A sealing ring 7 is arranged, and a bearing 8 is arranged at the end of the fitting portion; the power mechanism drives the rotating shaft 501 to rotate, and the volumes of the V1 working chamber 1001 and the V2 working chamber 1002 alternately change, and the V1 working chambers 1001 and V2 in Fig. 2 work.
  • the chamber 1002 is in the limit state, and the V1 working chamber 1001 is in a state after the completion of the intake of the spherical compressor.
  • the V1 working chamber 1001 shows the state theoretical volume being the largest, and the V2 working chamber 1002 is the lower after the exhausting.
  • the turntable shaft 501 drives the turntable 5 to rotate one turn around the axis of the piston shaft hole 105 every time, and the piston 3 swings once along the axis of the piston shaft hole 105 on the cylinder head 1 along both sides of the turn sleeve chute 601.
  • the angle of the swing is 2 ⁇ ; since the piston 3 swings once about the axis of the center pin 4 with respect to the turntable 5, a complete inhalation or compression exhaust process occurs in each of the V1 working chamber 1001 and the V2 working chamber 1002.
  • a sealing plug 11 is disposed at the end of the piston shaft hole 105 of the cylinder head 1, and an internal thread is disposed on the inner hole of the outer end of the piston shaft hole 105.
  • the sealing plug 11 is provided with an external thread matched thereto, and the sealing plug is provided.
  • the head 11 is threaded at the end of the piston shaft hole 105 so that the compressed medium and the lubricating oil do not leak from the piston shaft hole 105.
  • a piston insert 304 is provided at the fan-shaped cavity at the opening of the piston 3, and the piston insert 304 matches the opening size of the piston 3, and the piston insert
  • the top surface of the piston is adapted to the top surface of the piston 3, and the two sides of the piston insert 304 are adapted to the two sides of the piston 3.
  • the two end faces of the piston insert 304 are adapted to the two sides of the piston 3 opening, and the piston is set.
  • the lower end of the block 304 is an arc that is coaxial with the piston pin hole 302 at the lower end of the piston 3 and has the same radius.
  • the top surface and the two end faces of the piston insert 304 and the top surface and the two sides of the piston 3 are matched to each other.
  • the plane is easy to process, which is beneficial to improve the processing precision and the matching precision after combination.
  • the rotating surface may be various forms such as a spherical surface, a cylindrical surface, a tapered surface, etc., and the inner spherical surface of the cylinder 2 is also deformed into a rotating surface adapted to the rotating surface of the turntable 5, the piston pin seat,
  • the end faces of the cylindrical hinges formed by the center pin 4 and the turntable pin seat are attached to the inner surface of the cylinder block 2 to form a sealing dynamic fit during the movement of the piston 3 and the turntable 4; for this purpose, the turntable and the cylinder block
  • the deformation scheme is also protected by this patent, and the technical solution after the above deformation treatment also falls within the protection scope of the present invention.
  • the spherical compressor according to the embodiment includes a cylinder head 1, a cylinder block 2, a piston 3, a center pin 4, a turntable 5, and the like, and the cylinder block 2 and the cylinder head 1 have a hemisphere.
  • the inner cavity, the cylinder 2 and the cylinder head 1 are combined by screw to form a casing of a spherical compressor having a spherical inner cavity;
  • the inner spherical surface of the cylinder head 1 is provided with an intake passage 103, an exhaust passage 104 and a piston a shaft hole 105;
  • a rotary shaft hole 201 passing through the outside of the cylinder is disposed on the cylinder 2, and the rotary shaft hole 201 on the cylinder 2 communicates with the spherical inner cavity of the cylinder 2 through a through hole, and the radial size of the through hole is smaller than
  • the diameter of the rotary shaft hole 201 forms an annular positioning surface at the upper end of the rotary shaft hole 201;
  • the axis of the piston shaft hole 105 and the rotary shaft hole 201 pass through the center of the spherical inner cavity, the piston shaft hole 105 and the rotary shaft hole
  • the axis angle of 201 is ⁇ ; the intake passage
  • the outer surface of the cylinder head 1 is further provided with an air inlet hole 101 and an air outlet hole 102, the air inlet hole 101 is in communication with the air inlet passage 103, and the air outlet hole 102 is connected to the exhaust passage 104;
  • the piston 3 has a spherical top surface, two angled side faces, and piston pin seats at the lower portions of the two sides, and the spherical inner surface of the piston and the spherical cavity formed by the cylinder block 2 and the cylinder head 1 Having the same center of the ball and forming a sealed dynamic fit;
  • the piston pin seat has a semi-cylindrical structure with a through-hole piston pin hole 302 in the axial direction of the semi-cylindrical; an open position is provided on the piston pin seat at the lower portion of the piston 3,
  • a fan-shaped cavity is formed on the piston pin seat of the piston 3.
  • the opening of the piston 3 is located in the middle of the piston pin seat and is perpendicular to the axis of the piston pin hole 302 of the piston pin seat.
  • the opening width of the piston 3 and the turntable pin seat The width of the semi-cylindrical body is adapted; the turntable 5 has a turntable pin holder corresponding to the piston pin seat at the upper portion thereof, and the outer peripheral surface between the upper portion and the lower end surface of the turntable 5 is a turntable spherical surface, the turntable spherical surface and the spherical inner portion
  • the cavity has the same spherical core and close to the spherical cavity to form a sealing dynamic fit; the two ends of the turntable pin seat are semi-cylindrical grooves, the middle part is a convex semi-cylindrical, and a turntable pin is arranged at the center of the semi-cylindrical Hole 502; set at the lower end of the turntable 5
  • a spindle 12 is connected to the lower end of the cylinder block 2 through a spindle bracket 13.
  • the spindle bracket 13 is fixedly connected to the lower end of the cylinder block 2 by screws to provide support for the rotation of the spindle 12; the upper end of the spindle 12 is placed in the spindle shaft hole 201, and the spindle
  • the outer cylinder of the upper end of 12 is coaxial with the shaft hole 201 of the rotary disk.
  • the main shaft 12 is rotatable about the shaft hole 201 of the rotary disk.
  • a spindle chute 121 is arranged along the axial direction of the center pin 4, and both sides of the main shaft chute 121 are provided.
  • both sides of the shoe 14 are flat planes, and a turntable shaft pin hole 503 is disposed at an end of the turntable shaft 501.
  • a shoe pin hole 142 is disposed at a corresponding position of the shoe 14; after the through hole of the disk shaft 501 passing through the disk shaft hole 201 and the spherical inner cavity, the end of the disk shaft 501 is inserted into the shoe shaft hole 141, and the fixing pin is fixed. 10 is inserted into the turntable pin hole 503 and the shoe pin hole 142 to form a fixed pin hole, The fixed pin 10 fixes the shoe 14 to the end of the turntable shaft 501; the shoe 14 is placed in the spindle chute 121 at the end of the main shaft 12, and both sides of the shoe 14 are attached to both sides of the main shaft chute 121. The two sides of the main shaft chute 121 slide to form a dynamic fit, and the main shaft chute 121 on the main shaft 12 and the sliding shoe 14 on the rotating shaft 501 form a chute swinging mechanism;
  • the lower end of the main shaft 12 extends from the shaft hole of the main shaft bracket 13 and is connected to the power mechanism.
  • the main shaft 12 drives the rotary shaft 501 to rotate through the two side surfaces of the main shaft chute 121.
  • the turntable 5 drives the piston 3 through the cylindrical hinge, and the piston 3
  • the movement is a rotation about the axis of the piston shaft hole 105.
  • the movement of the turntable 5 is a rotation about the axis of the rotary shaft hole 201 and the swing of the piston 3 about the center pin 4, while the turntable 5 passes the shoe 14 along the main shaft chute 121.
  • the function of the chute swinging mechanism is to provide the turntable 5 with a degree of freedom of swinging along both sides of the main shaft chute 121.
  • the turntable 5 is swung around the center pin 4 with respect to the piston 3, and the V1 working chamber 1001 and the V2 working chamber 1002 having alternating volumes are formed between the upper end surface of the turntable 5, the two sides of the piston 3 and the spherical inner cavity;
  • the intake passage 103 and the exhaust passage 104 on the cylinder head 1 are respectively disposed in an annular space perpendicular to the axis of the piston shaft hole 105, and the intake passage 103 and the exhaust passage 104 are respectively connected to the two communicating cylinders on the cylinder head 1
  • the air inlet hole 101 and the air outlet hole 102 are connected; the intake and exhaust control is realized by the rotation of the piston 3, and the corresponding working chamber and the intake passage 103 or the exhaust passage 104 are required when each working chamber requires exhaust or intake air. Connected.
  • the power mechanism drives the main shaft 12 to rotate, and the main shaft 12 rotates the rotary shaft 501 through the two sides of the main shaft chute 121, and the volume of the V1 working chamber 1001 and the V2 working chamber 1002 constantly changes.
  • the V1 working chamber 1001 and the V2 working chamber 1002 are In the limit state, the V1 studio 1001 is in the state after the completion of the intake of the spherical compressor, so the V1 studio in the figure In the figure 1001, the state theoretical volume is the largest, and the V2 working chamber 1002 is in the state in which the intake is started in the next cycle after the end of the exhaust. Therefore, the V2 working chamber 1002 in the figure shows that the state theoretical volume is zero.
  • the turntable shaft 501 drives the turntable 5 to rotate once a week, and the piston 3 rotates about the axis of the piston shaft hole 105.
  • the turntable 5 swings once along the axis of the rotary shaft hole 201 on the cylinder 2 along both sides of the main shaft chute 121, and swings.
  • the angle is 2 ⁇ ; since the turntable 5 swings once about the axis of the center pin 4 with respect to the piston 3, the V1 working chamber 1001 and the V2 working chamber 1002 each undergo a complete inhalation or compression exhaust process.
  • a needle bearing is disposed at a portion of the upper end portion of the main shaft 12 that engages with the rotary shaft hole 201 of the cylinder block 2; a sealing ring 7 is disposed at an inner side of the mating portion of the main shaft 12 and the main shaft bracket 13, and the end portion of the mating portion is provided with
  • the bearing 8 is provided with a piston bushing 9 at a portion where the piston shaft 301 is engaged with the piston shaft hole 105 on the cylinder head 1.
  • the piston shaft hole 105 on the cylinder head 1 penetrates outside the cylinder, and the piston shaft 301 protrudes from the piston shaft hole 105 on the cylinder head 1 and is connected with the power mechanism as a power input end of the compressor. Power can be input from the piston shaft.
  • a piston insert 304 is provided at the fan-shaped cavity at the opening of the piston 3, and the piston insert 304 matches the opening size of the piston 3, and the piston insert
  • the top surface of the piston is adapted to the top surface of the piston 3, and the two sides of the piston insert 304 are adapted to the two sides of the piston 3.
  • the two end faces of the piston insert 304 are adapted to the two sides of the piston 3 opening, and the piston is set.
  • the lower end of the block 304 is an arc that is coaxial with the piston pin hole 302 at the lower end of the piston 3 and has the same radius.
  • the top surface and the two end faces of the piston insert 304 and the top surface and the two sides of the piston 3 are matched to each other.
  • the plane is easy to process, which is beneficial to improve the processing precision and the matching precision after combination.
  • This patent selects a chute swing mechanism between the piston shaft 301 and the piston shaft bore 105 or between the dial shaft 501 and the dial shaft hole 201; in the first embodiment, the piston shaft 301 and the piston shaft
  • the chute swinging mechanism between the holes 105 causes the piston 3 to swing along the axis of the piston shaft hole 105 along both sides of the swivel chute 601, so that the piston 3 gains freedom along the axial direction of the center pin 4; in the second implementation
  • the chute swinging mechanism between the dial shaft 501 and the dial shaft hole 201 causes the turntable 5 to swing along the axis of the spindle shaft hole 201 along both sides of the spindle chute 121, so that the turntable 5 obtains the axis direction along the center pin 4.
  • the degree of freedom is the degree of freedom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

一种球形压缩机，缸体(2)与缸盖(1)组合形成球形内腔，选取在活塞轴(301)与活塞轴孔(105)之间或者转盘轴(501)与转盘轴孔(201)之间的其中一处设置滑槽摆动机构，驱动转盘轴(501)转动，使活塞(3)沿活塞轴(301)与活塞轴孔(105)之间的滑槽摆动机构的滑槽相对于活塞轴孔(105)的轴线摆动，或者使转盘(5)沿转盘轴(501)与转盘轴孔(201)之间的滑槽摆动机构的滑槽相对于转盘轴孔(201)的轴线摆动，从而在球形内腔中形成容积交替变化的V1工作室(1001)和V2工作室(1002)；这种压缩机零件数量少、机构运动无死点、运行效率高。

Description

球形压缩机 技术领域
本发明专利涉及一种球形压缩机。
背景技术
球形压缩机是近年来新发明的一种全新结构的变容式机构，其优点是无进/排气阀、运动件少、振动小、机械效率高、密封可靠等，球形压缩机在近年来的应用研发中得到了不断地发展和完善，并取得了多项专利，如专利号是03114505.1(专利名称是“一种用于压缩机的变容式机构”)、200610104569.8(专利名称是“能实现多级压缩的球形压缩机”)、201010264211.8(专利名称是“一种用于球形压缩机的铰链密封自动补偿机构”)的中国专利；球形压缩机可广泛应用于气体压缩机、冰箱及制冷空调压缩机、泵类机械等各种领域，以球形压缩机为基础的各种动力机械正在进行产业化之中。
由于现有球形压缩机活塞的旋转是通过偏心主轴提供动力，当主轴旋转到转盘轴线与活塞轴线重合时，主轴作用在转盘上的合力与活塞和转盘的轴线垂直相交，使活塞绕活塞轴线旋转的扭矩为零，无法使活塞旋转，从而导致机构卡滞，这是机构的运动死点。专利号是201410100390.X、专利名称是“一种球形压缩机转子防卡死机构”的中国专利就是为解决球形压缩机死点位置卡死问题而发明的，具体是在转盘轴上增加销座，销座上设置有导向套，在缸体座球面或者缸体下球面上设置凹形滑道，凹形滑道分布在转盘转动过程中导向套在所对应的缸体座球面或者缸体下球面的滑动轨迹上；当转盘自转的扭矩为零的瞬间，主轴驱动转盘时,导向套与凹形滑道产生的接触力仍可以使转盘继续保持运动，从而使转盘不易卡滞，从根本上解决了球形压缩机机构运动的死点问题，但是，凹形滑道需要高精度才能保证导向套与凹形滑道良好的配合，而且防卡死机构运动过程中需要设置冷却机构防止导向套与凹形滑道摩擦产生发热，增加了制造和运行成本。
发明内容
本发明的目的就是设计一种新型的球形压缩机，对原有的球形压缩机进行重新设计，使球形压缩机在结构上成为无死点机构。
本发明的技术方案是，球形压缩机，它包括：
缸体，该缸体具有半球形内腔，在缸体上设置有贯通缸外的转盘轴孔；
缸盖，该缸盖具有半球形内腔，该缸盖与所述缸体组合在一起形成球形内腔，在该缸盖 的内球面上设置有进气通道、排气通道及活塞轴孔，缸盖上的进气通道和排气通道分别布置在垂直于活塞轴孔轴线的环形空间内，进气通道和排气通道分别与缸盖上连通缸外的进气孔和排气孔连通；
活塞，该活塞具有球形顶面、两个成一定角度的侧面和在两侧面下部的活塞销座，所述活塞球形顶面与所述球形内腔具有相同的球心并形成密封动配合；所述活塞销座为半圆柱结构，半圆柱的中部有凹槽，在半圆柱的中心轴线上设置有贯通的活塞销孔；在活塞的球形顶面中央凸出一活塞轴，活塞轴的轴线通过活塞球形顶面的球心；
转盘，该转盘具有在其上部与活塞销座相对应的转盘销座；该转盘上部和下端面之间的外周面为转盘球面，转盘球面与所述球形内腔具有相同的球心并紧贴球形内腔形成密封动配合；所述转盘销座的两端为半圆柱凹槽，中部为凸起的半圆柱，在半圆柱的中心轴线上设置有贯通的转盘销孔；在转盘的下端中心凸出一转盘轴，转盘轴通过转盘球面的球心；
中心销，该中心销插入所述转盘销座和活塞销座相配所形成的销孔中形成柱面铰链，柱面铰链的各配合面之间形成密封动配合；
其中，所述活塞轴孔和转盘轴孔的轴线都通过所述球形内腔的球心，活塞轴孔和转盘轴孔的轴线夹角为α；选取在活塞轴与活塞轴孔之间或者转盘轴与转盘轴孔之间的其中一处设置滑槽摆动机构，在活塞轴与活塞轴孔之间的滑槽摆动机构使活塞沿滑槽相对于活塞轴孔的轴线摆动，在转盘轴与转盘轴孔之间的滑槽摆动机构使转盘沿滑槽相对于转盘轴孔的轴线摆动，摆动的幅度为2α；驱动转盘轴转动，活塞和转盘绕中心销相对摆动，在所述转盘的上端面、所述活塞的两侧面与所述球形内腔之间形成容积交替变化的V1工作室和V2工作室；
进一步的，在缸盖上的活塞轴孔内设置一圆柱形转套，转套的外圆柱与活塞轴孔同轴，转套可绕活塞轴孔的轴线旋转，在转套的端面设置一沿中心销轴线方向的转套滑槽，转套滑槽的两侧面对称设置在中心销的轴线和活塞轴孔的轴线所在的平面的两侧；在活塞轴的端部固定设置一滑靴，滑靴置于转套滑槽中，滑靴的两侧面与所述转套滑槽的两侧面贴合并沿转套滑槽的两侧面滑动形成动配合，转套上的转套滑槽和活塞轴上的滑靴形成滑槽摆动机构；转盘轴插入缸体上的转盘轴孔与缸体形成旋转副；在缸盖上活塞轴孔的端部设置一密封堵头；
活塞轴的端部设置有活塞轴销孔，在滑靴的中心设置有滑靴轴孔及与活塞轴销孔相配的滑靴销孔，活塞轴穿过活塞轴孔与球形内腔连通的过孔后插入滑靴轴孔中，固定销插入滑靴销孔和活塞轴销孔相配构成的销孔中使滑靴固定在活塞轴的端部，滑靴的两侧面为相互平形的平面，滑靴两侧面分别与转套滑槽的两侧面贴合形成动配合；
转盘轴伸出缸体外与动力机构连接作为压缩机的动力输入端；
进一步的，在缸体的下端通过主轴支架连接一主轴，主轴的上端置于转盘轴孔内，主轴上端的外圆柱与转盘轴孔同轴，主轴绕转盘轴孔旋转，在主轴上端面上设置一沿中心销轴线方向的主轴滑槽，主轴滑槽的两侧面对称设置在中心销的轴线和转盘轴孔的轴线所在平面的两侧；在转盘轴的端部固定设置一滑靴，滑靴置于主轴滑槽中，滑靴的两侧面与主轴滑槽的两侧面贴合并沿主轴滑槽的两侧面滑动形成动配合，主轴上的主轴滑槽和转盘轴上的滑靴形成滑槽摆动机构；
主轴的下端与动力机构连接；
转盘轴的端部设置有转盘轴销孔，在滑靴的中心设置有滑靴轴孔及与转盘轴销孔相配的滑靴销孔，转盘轴穿过转盘轴孔与球形内腔连通的过孔后插入滑靴轴孔中，固定销插入滑靴销孔和转盘轴销孔相配构成的销孔中使滑靴固定在转盘轴的端部，滑靴的两侧面为相互平形的平面，滑靴两侧面分别与主轴滑槽的两侧面贴合形成动配合；
缸盖上的活塞轴孔贯通缸外，活塞轴从活塞轴孔伸出后与动力机构连接作为压缩机的动力输入端；
进一步的，所述活塞上包含一活塞镶块，活塞镶块为两侧厚中间薄的扇形块结构，镶嵌在活塞的活塞销座中部凹槽中，活塞镶块内圆柱面形状与转盘凸起的半圆柱面形状相适配形成密封动配合，活塞镶块凸起的顶面为与活塞的活塞销座凹槽底面相适配的外圆柱面，活塞镶块的两侧面与活塞两侧面平齐，活塞镶块的两端面与活塞销座中部凹槽的两侧壁形成密封动配合。
本发明的优点是：
1、本专利所述球形压缩机为无死点机构；
2、本专利所述球形压缩机的结构简单，零件数量少，要求加工精度低；
3、没有过死点机构摩擦发热所带来的功耗损失，不需要设置专门的冷却机构；
4、可广泛用于制冷压缩机、空调压缩机、空压机、泵类机械。
附图说明
图1：本发明第一个实施例结构示意图；
图2：图1中A-A剖视图；
图3：图2中B-B剖视图；
图4：本发明第一个实施例缸盖结构示意图；
图5：图4中C-C剖视图；
图6：图4中D-D剖视图；
图7：本发明第一个实施例缸体结构示意图；
图8：图7中E-E剖视图；
图9：转套结构示意图；
图10：滑靴结构示意图；
图11：本发明第一个实施例活塞结构示意图；
图12：本发明第一个实施例转盘结构示意图；
图13：活塞镶块结构示意图；
图14：本发明第二个实施例结构示意图；
图15：图14中G-G剖视图；
图16：图14中F-F剖视图；
图17：本发明第二个实施例活塞结构示意图；
图18：本发明第二个实施例转盘结构示意图；
图19：本发明第二个实施例主轴结构示意图；
图20：本发明第二个实施例缸盖结构示意图；
图21：图20中H-H剖视图；
图22：图20中I-I剖视图；
图23：本发明第二个实施例缸体结构示意图；
图中：1-缸盖；2-缸体；3-活塞；4-中心销；5-转盘；6-转套；7-密封圈；8-轴承；9-活塞轴套；10-固定销；11-密封堵头；12-主轴；13-主轴支架；14-滑靴；15-滚针轴承；
101-进气孔；102-排气孔；103-进气通道；104-排气通道；105-活塞轴孔；201-转盘轴孔；301-活塞轴；302-活塞销孔；303-活塞轴销孔；304-活塞镶块；501-转盘轴；502-转盘销孔；503-转盘轴销孔；601-转套滑槽；141-滑靴轴孔；142-滑靴销孔；121-主轴滑槽；
1001-V1工作室；1002-V2工作室。
具体实施方式
一、第一个实施例：
图1到图13所示为本专利第一个实施例附图，如图1到图8所示，本专利所述的球形压缩机包括缸盖1、缸体2、活塞3、中心销4、转盘5等，缸体2和缸盖1具有半球形内腔，缸体2和缸盖1通过螺钉固定连接形成具有球形内腔的球形压缩机的机壳；在缸盖1的内球面上设置有进气通道103、排气通道104和活塞轴孔105；在缸体2上设置有贯通缸外的转盘轴孔201，转盘轴孔201的一侧与球形内腔接通，另一侧设置有轴承座孔，轴承座孔与转盘轴孔201同轴；活塞轴孔105和转盘轴孔201的轴线都通过所述球形内腔的球心，活塞轴孔 105和转盘轴孔201的轴线夹角为α；缸盖1上的进气通道103和排气通道104设置在内球面上垂直于活塞轴孔105轴线的环形空间内，缸盖1的外表面上还设置有进气孔101和排气孔102，进气孔101与进气通道103连通，排气孔102与排气通道接通；
如图9到图12所示，活塞3具有球形顶面、两个成一定角度的侧面和在两侧面下部的活塞销座，活塞球形顶面与缸体2和缸盖1形成的球形内腔具有相同的球心并形成密封动配合；所述活塞销座为半圆柱结构，在半圆柱的中心轴线上有贯通的活塞销孔302；在活塞3下部的活塞销座上设置一开档，从而在活塞3的活塞销座上形成一扇形空腔，该活塞3的开档位于活塞销座中间并与活塞销座的活塞销孔302的轴线垂直，活塞3的开档宽度与转盘销座的半圆柱体的宽度相适配；转盘5具有在其上部与活塞销座相对应的转盘销座，在转盘5上部和下端面之间的外周面为转盘球面，转盘球面与所述球形内腔具有相同的球心并紧贴球形内腔形成密封动配合；所述转盘销座的两端为半圆柱凹槽，中部为凸起的半圆柱，在半圆柱的中心设置有贯通的转盘销孔502；在转盘5的下端中心固定设置有与缸体2上转盘轴孔201相配的转盘轴501，在活塞3的球形顶面中央固定设置有活塞轴301；转盘轴501插入缸体2上的转盘轴孔201与缸体2形成旋转副；中心销4插入所述转盘销座和活塞销座相配所形成的销孔中形成柱面铰链，柱面铰链的各配合面之间形成密封动配合，活塞3与转盘5通过柱面铰链形成密封动连接，柱面铰链的两端与球形内腔之间形成密封动配合；
缸盖1上的活塞轴孔105与缸盖1的球形内腔通过一过孔连通，过孔的径向尺寸小于活塞轴孔105直径，在活塞轴孔105的下端形成一圆环定位面，在缸盖1上的活塞轴孔105设置一圆柱形转套6，转套6置于活塞轴孔105中，转套6的端面与圆环定位面贴合，转套6的外圆柱与活塞轴孔105同轴，转套6可绕活塞轴孔105的轴线旋转，如图9所示，在转套6的端面设置一可沿中心销4轴线方向滑动的转套滑槽601；转套滑槽601的两侧面作为滑动工作面，对称设置在中心销4的轴线和缸盖1上的活塞轴孔105的轴线所在的平面的两侧；在滑靴14的中心设置有滑靴轴孔141，如图10所示，滑靴14的两侧面为相互平形的平面，在活塞轴301的端部设置有活塞轴销孔303，在滑靴14的相应位置设置滑靴销孔142，活塞轴301穿过活塞轴孔301与球形内腔连通的过孔后，活塞轴301的端部插入滑靴轴孔141中，固定销10插入活塞轴销孔303和滑靴销孔142形成固定销孔中，通过固定销10把滑靴14固定在活塞轴301的端部；滑靴14两侧面分别与转套滑槽601的两侧面贴合并沿转套滑槽601的两侧面滑动形成动配合；所述滑靴14的两侧面与活塞轴孔105的轴线和中心销4的轴线所在的平面平行；转套6上的转套滑槽601和活塞轴301上的滑靴14形成滑槽摆动机构；转盘轴501插入缸体2上的转盘轴孔501与缸体2形成旋转副；驱动转盘轴501旋转，转盘5通过柱面铰链带动活塞3运动，活塞3的运动是绕活塞轴孔105的轴线的转动以及相对转盘5 绕中心销4的摆动；同时，活塞3通过活塞轴301端部的滑靴14沿转套6上的转套滑槽601的两侧面相对缸盖1上的活塞轴孔301的轴线摆动，摆动的幅度为2α；转套滑槽601的两侧面在中心销4的轴线方向的长度要足够长，保证滑靴14的摆动不受干涉。本实施例中，滑槽摆动机构的作用是给活塞3提供一个沿转套滑槽601两侧面摆动的自由度。
活塞3绕中心销4的轴线相对转盘5摆动，在所述转盘5的上端面、所述活塞3的两侧面与所述球形内腔之间形成容积交替变化的V1工作室1001和V2工作室1002；缸盖1上的进气通道103和排气通道104分别布置在垂直于活塞轴孔105轴线的环形空间内，进气通道103和排气通道104分别与缸盖1上的两个连通缸外进气孔101和排气孔102接通；通过活塞3的转动来实现进排气控制，在各工作室需要排气或进气时，相应的工作室与进气通道103或者排气通道104连通。
如图3所示，本实施例中，转盘轴501伸出缸体2外与动力机构连接作为压缩机的动力输入端；在转盘轴501与缸体2上的转盘轴孔201配合的部分内侧设置有密封圈7，在配合部分的端部设置有轴承8；动力机构带动转盘轴501旋转，V1工作室1001和V2工作室1002的容积不断交替变化，图2中V1工作室1001和V2工作室1002是极限状态下的情况，V1工作室1001为球形压缩机进气完成后的状态，所以图中V1工作室1001图示状态理论容积为最大，V2工作室1002为排气结束后的下一周期开始进气的状态，图中V2工作室1002图示状态理论容积为零。转盘轴501带动转盘5每旋转一周，活塞3绕活塞轴孔105的轴线旋转一周，同时，活塞3沿转套滑槽601的两侧面相对于缸盖1上的活塞轴孔105的轴线摆动一次，摆动的角度为2α；由于活塞3相对转盘5绕中心销4的轴线摆动一次，V1工作室1001和V2工作室1002各发生一次完整的吸气或者压缩排气过程。
在缸盖1上活塞轴孔105的端部设置一密封堵头11，在活塞轴孔105的外端部内孔上设置一内螺纹，密封堵头11设置有与之相配的外螺纹，密封堵头11通过螺纹封堵在活塞轴孔105的端部，使压缩介质、润滑油不会从活塞轴孔105泄露。
为了提高活塞3的加工工艺性，如图13所示，在活塞3的开档处的扇形空腔处设置一活塞镶块304，活塞镶块304与活塞3的开档尺寸相配，活塞镶块304的顶面与活塞3开档的顶面相适应，活塞镶块304的两侧面与活塞3的两侧面相适应，活塞镶块304的两端面与活塞3开档的两侧面相适应，活塞镶块304的下端是与活塞3下端活塞销孔302同轴而且半径相同的圆弧，把活塞镶块304的顶面、两端面与活塞3的开档的顶面、两侧面设置成相互匹配的平面方便加工，有利于提高加工精度和组合后的配合精度。
在本实施例的启发下，本领域专业技术人员不需要创造性劳动即可对转盘5和缸体2作 下述变形处理，同样可以达到本专利的技术效果：由于转盘5的运动是绕缸体2上转盘轴孔201的轴线的转动，所以转盘球面可以变形为绕缸体2上的转盘轴孔201的轴线的多种形式的回转面，回转面可以是球面、圆柱面、锥面等各种形式，缸体2的内球面也变形为与转盘5的回转面相适应的回转面，活塞销座、中心销4和转盘销座所形成的柱面铰链的两端的端面与缸体2的内表面相贴合并在活塞3和转盘4运动过程中始终形成密封动配合；为此，上述转盘和缸体的变形方案也受本专利保护，凡采用上述变形处理后的技术方案也落入本发明的保护范围。
二、第二个实施例：
图14到图23所示为本专利第二个实施例附图，本实施例中的中心销4、活塞镶块304、滑靴14与上述第一个实施例中的结构相同，如图14到图16、图20到图23所示，本实施例所述的球形压缩机包括缸盖1、缸体2、活塞3、中心销4、转盘5等，缸体2和缸盖1具有半球形内腔，缸体2和缸盖1组合通过螺钉固定连接形成具有球形内腔的球形压缩机的机壳；在缸盖1的内球面上设置有进气通道103、排气通道104和活塞轴孔105；在缸体2上设置有贯通缸外的转盘轴孔201，缸体2上的转盘轴孔201与缸体2的球形内腔通过一过孔连通，过孔的径向尺寸小于转盘轴孔201直径，在转盘轴孔201的上端形成一圆环定位面；活塞轴孔105和转盘轴孔201的轴线都通过所述球形内腔的球心，活塞轴孔105和转盘轴孔201的轴线夹角为α；缸盖1上的进气通道103和排气通道104设置内球面上垂直于活塞轴孔105轴线的环形空间内，缸盖1的外表面上还设置有进气孔101和排气孔102，进气孔101与进气通道103连通，排气孔102与排气通道104接通；
如图17到图19所示，活塞3具有球形顶面、两个成一定角度的侧面和在两侧面下部的活塞销座，活塞球形顶面与缸体2和缸盖1形成的球形内腔具有相同的球心并形成密封动配合；所述活塞销座为半圆柱结构，在半圆柱的轴线方向上有贯通的活塞销孔302；在活塞3下部的活塞销座上设置一开档，从而在活塞3的活塞销座上形成一扇形空腔，该活塞3的开档位于活塞销座中间并与活塞销座的活塞销孔302的轴线垂直，活塞3的开档宽度与转盘销座的半圆柱体的宽度相适配；转盘5具有在其上部与活塞销座相对应的转盘销座，在转盘5上部和下端面之间的外周面为转盘球面，转盘球面与所述球形内腔具有相同的球心并紧贴球形内腔形成密封动配合；所述转盘销座的两端为半圆柱凹槽，中部为凸起的半圆柱，在半圆柱的中心设置有贯通的转盘销孔502；在转盘5的下端设置有转盘轴501，在转盘轴501上设置有转盘轴销孔503；在活塞3的球形顶面中央凸出一与缸盖1上活塞轴孔105相配的活塞轴301，活塞轴301插入缸盖1上的活塞轴孔105与缸盖1形成旋转副；中心销4插入所述转盘销座和活塞销座相配所形成的销孔中形成柱面铰链，柱面铰链的各配合面之间形成密封 动配合，活塞3与转盘5通过柱面铰链形成密封动连接，柱面铰链的两端与球形内腔之间形成密封动配合；
在缸体2的下端通过主轴支架13连接一主轴12，主轴支架13通过螺钉与缸体2的下端固定连接，为主轴12的旋转提供支撑；主轴12的上端置于转盘轴孔201内，主轴12上端的外圆柱与转盘轴孔201同轴，主轴12可绕转盘轴孔201旋转，在主轴12的上端面设置一沿中心销4轴线方向的主轴滑槽121，主轴滑槽121的两侧面作为滑动工作面，对称设置在中心销4的轴线和缸体2上转盘轴孔201的轴线所在的平面两侧；与第一个实施例中滑靴14的结构相同，在滑靴14的中心设置有滑靴轴孔141，如图10、图15、图16及图18所示，滑靴14的两侧面为相互平形的平面，在转盘轴501的端部设置有转盘轴销孔503，在滑靴14的相应位置设置滑靴销孔142；转盘轴501的穿过转盘轴孔201与球形内腔连通的过孔后，转盘轴501的端部插入滑靴轴孔141中，固定销10插入转盘轴销孔503和滑靴销孔142形成固定销孔中，通过固定销10把滑靴14固定在转盘轴501的端部；滑靴14置于主轴12端部的主轴滑槽121中，滑靴14的两侧面与主轴滑槽121的两侧面贴合并沿主轴滑槽121的两侧面滑动形成动配合，主轴12上的主轴滑槽121和转盘轴501上的滑靴14形成滑槽摆动机构；
主轴12的下端从主轴支架13的轴孔伸出后与动力机构连接，主轴12通过主轴滑槽121的两个侧面驱动转盘轴501旋转，转盘5通过柱面铰链带动活塞3运动，活塞3的运动是绕活塞轴孔105的轴线的转动，转盘5的运动是绕转盘轴孔201的轴线的转动以及相对活塞3绕中心销4的摆动，同时，转盘5通过滑靴14沿主轴滑槽121的两侧面相对缸体2上的转盘轴孔201的轴线摆动，摆动的角度为2α；主轴滑槽121的两侧面在中心销4的轴线方向的长度要足够长，保证滑靴14的摆动不受干涉。本实施例中，滑槽摆动机构的作用是给转盘5提供一个沿主轴滑槽121两侧面摆动的自由度。
转盘5绕中心销4相对活塞3摆动，在所述转盘5的上端面、所述活塞3的两侧面与所述球形内腔之间形成容积交替变化的V1工作室1001和V2工作室1002；缸盖1上的进气通道103和排气通道104分别布置在垂直于活塞轴孔105轴线的环形空间内，进气通道103和排气通道104分别与缸盖1上的两个连通缸外进气孔101和排气孔102接通；通过活塞3的转动来实现进排气控制，在各工作室需要排气或进气时，相应的工作室与进气通道103或者排气通道104连通。
动力机构带动主轴12旋转，主轴12通过主轴滑槽121的两侧面带动转盘轴501旋转，V1工作室1001和V2工作室1002的容积不断变化，图15中V1工作室1001和V2工作室1002是极限状态下的情况，V1工作室1001为球形压缩机进气完成后的状态，所以图中V1工作室 1001图示状态理论容积为最大，V2工作室1002为排气结束后的下一周期开始进气的状态，所以图中V2工作室1002图示状态理论容积为零。转盘轴501带动转盘5每旋转一周，活塞3绕活塞轴孔105的轴线旋转一周，同时，转盘5沿主轴滑槽121的两侧面以缸体2上的转盘轴孔201的轴线摆动一次，摆动的角度为2α；由于转盘5相对活塞3绕中心销4的轴线摆动一次，V1工作室1001和V2工作室1002即各发生一次完整的吸气或者压缩排气过程。
在主轴12上端圆柱部分与缸体2上的转盘轴孔201配合的部分设置有滚针轴承；在主轴12与主轴支架13配合部分的内侧设置有密封圈7，在配合部分的端部设置有轴承8；在活塞轴301与缸盖1上的活塞轴孔105配合的部分设置有活塞轴套9。
作为本实施例的应用延伸，缸盖1上的活塞轴孔105贯通缸外，活塞轴301从缸盖1上的活塞轴孔105伸出后与动力机构连接作为压缩机的动力输入端，也可以从活塞轴输入动力。
为了提高活塞3的加工工艺性，如图14所示，在活塞3的开档处的扇形空腔处设置一活塞镶块304，活塞镶块304与活塞3的开档尺寸相配，活塞镶块304的顶面与活塞3开档的顶面相适应，活塞镶块304的两侧面与活塞3的两侧面相适应，活塞镶块304的两端面与活塞3开档的两侧面相适应，活塞镶块304的下端是与活塞3下端活塞销孔302同轴而且半径相同的圆弧，把活塞镶块304的顶面、两端面与活塞3的开档的顶面、两侧面设置成相互匹配的平面方便加工，有利于提高加工精度和组合后的配合精度。
在本实施例的启发下，本领域专业技术人员不需要创造性劳动即可对活塞3和缸盖1作下述变形处理，同样可以达到本专利的技术效果：由于活塞3的运动是绕缸盖1上活塞轴孔105的轴线的转动，所以活塞3的球形顶面可以变形为绕缸盖1上的活塞轴孔105轴线的多种形式的回转面，回转面可以是球面、圆柱面、锥面等各种形式，缸盖1的内球面也变形为与活塞3的回转面相适应的回转面，活塞销座、中心销4和转盘销座所形成的柱面铰链的两端的端面与缸盖1的内球面相贴合并在活塞3和转盘4运动过程中始终形成密封动配合；为此，上述活塞3和缸盖1的变形方案也受本专利保护，凡采用上述变形处理后的技术方案也落入本发明的保护范围。
本专利选取在活塞轴301与活塞轴孔105之间或者转盘轴501与转盘轴孔201之间的其中一处设置滑槽摆动机构；在第一个实施例中，在活塞轴301与活塞轴孔105之间的滑槽摆动机构使活塞3沿转套滑槽601的两侧面相对活塞轴孔105的轴线摆动，使活塞3获得沿中心销4的轴线方向的自由度；在第二个实施例中，在转盘轴501与转盘轴孔201之间的滑槽摆动机构使转盘5沿主轴滑槽121的两侧面相对转盘轴孔201的轴线摆动，使转盘5获得沿中心销4的轴线方向的自由度。

Claims (9)

  1. 球形压缩机，它包括：
    缸体(2)，该缸体(2)具有半球形内腔，在缸体(2)上设置有贯通缸外的转盘轴孔(201)；
    缸盖(1)，该缸盖(1)具有半球形内腔，该缸盖(1)与缸体(2)组合在一起形成球形内腔，在该缸盖(1)的内球面上设置有进气通道(103)、排气通道(104)及活塞轴孔(105)，缸盖(1)上的进气通道(103)和排气通道(104)分别布置在垂直于活塞轴孔(105)轴线的环形空间内，进气通道(103)和排气通道(104)分别与缸盖(1)上连通缸外的进气孔(101)和排气孔(102)连通；
    活塞(3)，该活塞(3)具有球形顶面、两个成一定角度的侧面和在两侧面下部的活塞销座，活塞(3)的球形顶面与所述球形内腔具有相同的球心并形成密封动配合；所述活塞销座为半圆柱结构，半圆柱的中部有凹槽，在半圆柱的中心轴线上设置有贯通的活塞销孔(302)；在活塞(3)的球形顶面中央凸出一活塞轴(301)，活塞轴(301)的轴线通过活塞(3)的球形顶面的球心；
    转盘(5)，该转盘(5)具有在其上部与活塞销座相对应的转盘销座；该转盘(5)上部和下端面之间的外周面为转盘球面，转盘球面与所述球形内腔具有相同的球心并紧贴球形内腔形成密封动配合；所述转盘销座的两端为半圆柱凹槽，中部为凸起的半圆柱，在半圆柱的中心轴线上设置有贯通的转盘销孔(502)；在转盘(5)的下端中心凸出一转盘轴(501)，转盘轴(501)通过转盘球面的球心；
    中心销(4)，该中心销(4)插入所述转盘销座和活塞销座相配所形成的销孔中形成柱面铰链，柱面铰链的各配合面之间形成密封动配合；
    其中，活塞轴孔(105)和转盘轴孔(201)的轴线都通过所述球形内腔的球心，活塞轴孔(105)和转盘轴孔(201)的轴线夹角为α；选取在活塞轴(301)与活塞轴孔(105)之间或者转盘轴(501)与转盘轴孔(201)之间的其中一处设置滑槽摆动机构，在活塞轴(301)与活塞轴孔(105)之间的滑槽摆动机构使活塞(3)沿滑槽相对于活塞轴孔(105)的轴线摆动，在转盘轴(501)与转盘轴孔(201)之间的滑槽摆动机构使转盘(5)沿滑槽相对于转盘轴孔(201)的轴线摆动，摆动的角度为2α；驱动转盘轴(501)转动，活塞(3)和转盘(5)绕中心销(4)相对摆动，在所述转盘(5)的上端面、所述活塞(3)的两侧面与所述球形内腔之间形成容积交替变化的V1工作室(1001)和V2工作室(1002)。
  2. 根据权利要求1所述的球形压缩机，其特征是：在缸盖(1)上的活塞轴孔(105)内设置一圆柱形转套(6)，转套(6)的外圆柱与活塞轴孔(105)同轴，转套(6)可绕活塞轴孔(105)的轴线旋转，在转套(6)的端面设置一沿中心销(4)轴线方向的转套滑槽(601)，转套滑 槽(601)的两侧面对称设置在中心销(4)的轴线和活塞轴孔(105)的轴线所在的平面的两侧；在活塞轴(301)的端部固定设置一滑靴(14)，滑靴(14)置于转套滑槽(601)中，滑靴(14)的两侧面与转套滑槽(601)的两侧面贴合并沿转套滑槽(601)的两侧面滑动形成动配合，转套(6)上的转套滑槽(601)和活塞轴(501)上的滑靴(14)形成滑槽摆动机构；转盘轴(501)插入缸体(2)上的转盘轴孔(201)与缸体(2)形成旋转副；在缸盖(1)上活塞轴孔(105)的端部设置一密封堵头(11)。
  3. 根据权利要求2所述的球形压缩机，其特征是：活塞轴(301)的端部设置有活塞轴销孔(303)，在滑靴(14)的中心设置有滑靴轴孔(141)及与活塞轴销孔(303)相配的滑靴销孔(142)，活塞轴(301)穿过活塞轴孔(105)与球形内腔连通的过孔后插入滑靴轴孔(141)中，固定销(10)插入滑靴销孔(142)和活塞轴销孔(303)相配构成的销孔中使滑靴(14)固定在活塞轴(301)的端部，滑靴(14)的两侧面为相互平形的平面，滑靴(14)两侧面分别与转套滑槽(601)的两侧面贴合形成动配合。
  4. 根据权利要求2或3所述的球形压缩机，其特征是：转盘轴(501)伸出缸体(2)外与动力机构连接。
  5. 根据权利要求1所述的球形压缩机，其特征是：在缸体(2)的下端通过主轴支架(13)连接一主轴(12)，主轴(12)的上端置于转盘轴孔(201)内，主轴(12)上端的外圆柱与转盘轴孔(201)同轴，主轴(12)绕转盘轴孔(201)旋转；在主轴(12)上端面上设置一沿中心销(4)轴线方向的主轴滑槽(121)，主轴滑槽(121)的两侧面对称设置在转盘轴孔(201)的轴线和中心销(4)的轴线所在平面的两侧；在转盘轴(501)的端部固定设置一滑靴(14)，滑靴(14)置于主轴滑槽(121)中，滑靴(14)的两侧面与主轴滑槽(121)的两侧面贴合并沿主轴滑槽(121)的两侧面滑动形成动配合，主轴(12)上的主轴滑槽(121)和转盘轴(501)端部的滑靴(14)形成滑槽摆动机构。
  6. 根据权利要求5所述的球形压缩机，其特征是：主轴(12)的下端与动力机构连接。
  7. 根据权利要求5所述的球形压缩机，其特征是：转盘轴(501)的端部设置有转盘轴销孔(503)，在滑靴(14)的中心设置有滑靴轴孔(141)及与转盘轴销孔(503)相配的滑靴销孔(142)，转盘轴(501)穿过转盘轴孔(201)与球形内腔连通的过孔后插入滑靴轴孔(141)中，固定销(10)插入滑靴销孔(142)和转盘轴销孔(503)相配构成的销孔中使滑靴(14)固定在转盘轴(501)的端部，滑靴(14)的两侧面为相互平形的平面，滑靴(14)两侧面分别与主轴滑槽(121)的两侧面贴合形成动配合。
  8. 根据权利要求5或7所述的球形压缩机，其特征是：缸盖(1)上的活塞轴孔(105)贯通 缸外，活塞轴(501)从活塞轴孔(105)伸出后与动力机构连接。
  9. 根据权利要求1、2、3、5或7所述的球形压缩机，其特征是：所述活塞(3)上包含一活塞镶块(304)，活塞镶块(304)为两侧厚中间薄的扇形块结构，镶嵌在活塞(3)的活塞销座中部凹槽中，活塞镶块(304)内圆柱面形状与转盘(5)凸起的半圆柱面形状相适配形成密封动配合，活塞镶块(304)凸起的顶面为与活塞(3)的活塞销座凹槽底面相适配的外圆柱面，活塞镶块(304)的两侧面与活塞(3)两侧面平齐，活塞镶块(304)的两端面与活塞销座中部凹槽的两侧壁形成密封动配合。
PCT/CN2017/078509 2016-04-20 2017-03-29 球形压缩机 WO2017181825A1 (zh)

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