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WO1994008139A1 - Pompe/moteur hydraulique - Google Patents

Pompe/moteur hydraulique Download PDF

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Publication number
WO1994008139A1
WO1994008139A1 PCT/JP1993/001413 JP9301413W WO9408139A1 WO 1994008139 A1 WO1994008139 A1 WO 1994008139A1 JP 9301413 W JP9301413 W JP 9301413W WO 9408139 A1 WO9408139 A1 WO 9408139A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
fluid pressure
motor
fluid
housing
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP1993/001413
Other languages
English (en)
Japanese (ja)
Inventor
Toshio Okamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of WO1994008139A1 publication Critical patent/WO1994008139A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/356—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F04C2/3562—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 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 surface 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle

Definitions

  • the present invention relates to a fluid pressure pump or a fluid pressure pump motor as a fluid pressure motor, and in particular, forms a pressure receiving projection that partitions a fluid working chamber on an outer peripheral portion of a rotor housed in a rotor housing chamber of a housing; And a fluid pump z motor provided with a vane mechanism for partitioning a fluid working chamber.
  • the rotary rotor type motor / compressor described in Japanese Patent Application Laid-Open No. HEI 4-1496 is a compressor incorporating an electric motor.
  • a rotor housing chamber having a circular cross section is provided in a housing.
  • the stator of the induction motor (smaller than the inner diameter of the rotor), in which a cylindrical rotor having a smaller diameter is mounted in the rotor accommodating chamber and a plurality of induction coils are mounted in the rotor.
  • a part of the inner peripheral surface of the rotor is attracted by the magnetized coil of the stator and contacts the stator, and a part of the outer peripheral surface of the rotor is the inner peripheral surface of the rotor housing chamber.
  • a fluid working chamber is formed outside the rotor in the rotor housing chamber, and a vane mechanism for partitioning the fluid working chamber is provided in the housing, and on both sides of the vane mechanism of the housing.
  • a supply port and an outlet port are formed.
  • a rotor housing chamber 202 having a circular cross section is formed in a housing 201, and a cylindrical body eccentric with respect to its axis is formed in the rotor housing chamber 202.
  • the rotor 203 is rotatably housed integrally with the shaft member 204, and a part of the outer peripheral surface of the rotor 203 is slidably contacted with the inner peripheral surface of the rotor housing chamber 202, and
  • a fluid working chamber 205 is formed outside the rotor 203 of the rotor housing chamber 202, and a vane mechanism 206 that partitions the fluid working chamber 205 is formed in the housing 201.
  • the vane mechanism 206 mounts a movable partition member 208 in a mounting hole 207 formed in the housing 201 such that the movable partition member 208 can move forward and backward with respect to the rotor accommodating chamber 202.
  • the partition member 208 is elastically urged toward the rotor accommodating chamber 202 by a spring 209, and the supply port 210 exits on both sides of the vane mechanism 206.
  • the fluid pressure pump / motor 200 When the fluid pressure pump / motor 200 is used as a fluid pressure motor, when fluid pressure is supplied from the supply port 210 to the first working chamber 205a, the first working chamber 205a The fluid pressure acts on the rotor 203, the fluid in the second working chamber 205b is discharged from the outlet port 211, and the rotor 203 is driven to rotate clockwise.
  • the fluid pressure pump motor 200 When the fluid pressure pump motor 200 is used as a fluid pressure pump, the shaft member 204 is driven to rotate clockwise by an electric motor or the like (not shown), and the shaft member 204 is moved from the supply port 210 to the first port.
  • the rotation angle range where the pressure receiving area of the rotor receives the maximum is narrow, and the rotation angle range where the maximum torque and the maximum discharge amount are output is narrow. In other words, there is a problem that the size of the fluid pressure pump Z motor increases.
  • An object of the present invention is to make it possible to simplify the structure of a fluid pump motor having a rotor, to reduce the wear of a rotary rotor to increase its durability, and to increase the supply fluid pressure and discharge fluid pressure. In other words, it is necessary to increase the rotation angle range for outputting the maximum torque and the maximum discharge amount to increase the capacity, that is, to reduce the size. Disclosure of the invention
  • a fluid pressure pump / motor includes: a housing; a rotor housing chamber having a circular cross-section formed in the housing; a rotor housed in the rotor housing chamber so as to be rotatable around its shaft; A fluid working chamber formed in a portion outside of the rotor, and a shaft member connected to the rotor and extending out of the housing.
  • a pressure receiving projection formed on the rotor and projecting to an inner peripheral surface of the rotor accommodating chamber so as to partition the fluid working chamber;
  • a seal portion formed at an outer peripheral end portion of the pressure receiving protrusion portion and slidably contacting an inner peripheral surface of the rotor receiving hole in a surface contact manner and in a sealable manner;
  • a partition member, and a biasing hand for biasing the movable partition member toward the rotor A vane mechanism having a step and
  • the housing includes a supply port and an outlet port formed near the leading side and the trailing side of the movable partition member of the vane mechanism in the rotor rotation direction, respectively.
  • a fluid working chamber is formed on the outer peripheral side of the rotor in the rotor housing chamber, and the fluid working chamber includes a pressure receiving projection of the rotor and a movable partition member of the vane mechanism. And is divided into a supply-side fluid working chamber portion communicating with the supply port and an outlet-side fluid working chamber portion communicating with the outlet port.
  • the fluid pressure of the supply-side fluid working chamber acts on one side of the pressure receiving projection of the rotor.
  • the discharge pressure (drain pressure in the case of a hydraulic motor, and atmospheric pressure in the case of an air motor) acts on the other side of the pressure receiving projection of the rotor. It is driven to rotate by the pressure difference.
  • the pressure receiving protrusion of the rotor approaches the vane mechanism, the movable partition member retreats and the rotor passes through the vane mechanism, and the pressure receiving protrusion of the rotor returns to the supply-side fluid working chamber portion of the supply side. Due to the fluid pressure acting, the rotor will continue to rotate.
  • the rotor has at least one pressure receiving projection projecting to the inner peripheral surface of the rotor housing chamber so as to partition the fluid working chamber.
  • a seal portion is formed at the outer peripheral end of the pressure receiving protrusion so as to be in sliding contact with the inner peripheral surface of the rotor accommodating chamber so as to be able to seal, the wear resistance of the seal portion is enhanced and its durability is improved.
  • the efficiency of the fluid pressure pump motor can be increased by improving the sealing performance of the seal portion at the same time, and the supply fluid pressure and the discharge fluid pressure can be increased.
  • FIG. 1 is a cross-sectional view of a hydraulic pump motor according to an embodiment of the present invention.
  • FIG. 2 is a side view of the hydraulic pump motor of FIG.
  • Fig. 3 is a vertical cross-sectional view (cross-sectional view taken along the line 3-3 in Fig. 1) of the hydraulic pump Z motor in Fig. 1.
  • FIG. 4 is a hydraulic circuit diagram for the hydraulic motor of the hydraulic pump / motor of FIG. 1
  • FIG. 5 is a hydraulic circuit diagram of the hydraulic pump of the hydraulic pump motor of FIG. 1
  • FIG. It is a cross-sectional view of the fluid pressure pump of the first alternative embodiment
  • FIG. 7 is a longitudinal sectional view (sectional view taken along line 7-7 in FIG. 6) of the fluid pressure pump / motor shown in FIG.
  • FIG. 8 is a cross-sectional view of a fluid pressure pump motor of a first modified example.
  • FIG. 9 is a sectional view of a main part of the fluid pressure pump motor shown in FIG.
  • FIG. 10 is a sectional view of a main part of the fluid pressure pump / motor of FIG. 8,
  • FIG. 11 is a cross-sectional view of a fluid pressure pump Z motor according to a second modification
  • FIG. 12 is a hydraulic circuit diagram of the hydraulic pump / motor of the hydraulic pump / motor of FIG. 11;
  • FIG. 13 is a hydraulic circuit diagram of the hydraulic pump / motor of the hydraulic pump / motor of FIG. 11;
  • FIG. 14 is a cross-sectional view of a fluid pressure pump motor of a third modified example,
  • FIG. 15 is a cross-sectional view of the hydraulic pump Z motor unit of the second alternative embodiment
  • FIG. 16 is a vertical cross-sectional view of the unit of FIG. 15 (line 16—16 in FIG. 15).
  • FIG. 17 is a hydraulic circuit diagram for the hydraulic motor of the unit of FIG. 15;
  • FIG. 18 is a hydraulic circuit diagram for the hydraulic motor of the unit of FIG. 15;
  • FIG. 19 is a partial view of a modification of the unit of FIG. 15 corresponding to FIG.
  • FIG. 20 is a hydraulic circuit diagram for the hydraulic pump of the unit of FIG. 15;
  • FIG. 21 is a hydraulic circuit diagram for the hydraulic pump of the unit of FIG. 15;
  • FIG. 22 is a hydraulic circuit diagram of a hydraulic pump Z motor unit of a third alternative embodiment
  • FIG. 23 is a hydraulic circuit diagram of a hydraulic pump pump motor unit of a fourth alternative embodiment
  • FIG. 24 is a longitudinal sectional view of a fluid pressure pump motor according to the prior art. BEST MODE FOR CARRYING OUT THE INVENTION
  • the fluid pressure motor M includes a housing 1, a ⁇ -motor 2, an output shaft 3, a vane mechanism 4, and the like.
  • the housing 1 includes a housing main body 10 having a cylindrical rotor housing hole 5a therein, a first end plate 11 for closing a right end side of the housing main body 10, and a left end side of the housing main body 10 for closing the left end side.
  • the housing 1 is formed with a second end plate 12 and the like, and a rotor housing chamber 5 is formed in the housing 1 in which both ends of the rotor housing hole 5a are closed by the first and second end plates 11 and 12.
  • the housing 1 and the rotor 2 are made of a material such as iron, steel, stainless steel, aluminum, aluminum alloy, synthetic resin, FRP (fiber reinforced synthetic resin), or high-strength ceramic. Can also be configured.
  • the rotor 2 has a cylindrical rotor body 20 and a pressure receiving projection 21 integrally formed on the rotor body 20 so as to protrude outside the outer periphery of the rotor body 20.
  • 1 is formed in parallel with the axis X of the rotor housing 5 and the same length as the rotor main body 20, and the tip of the pressure receiving projection 21 comes into surface contact with the inner peripheral surface of the rotor housing 5.
  • sea A seal portion 22 is formed so as to be slidably contactable with each other. On both sides of the seal portion 22, a gentle curved surface gradually increasing in diameter from the outer peripheral surface of the rotor body 20 toward the seal portion 22. 23 and 23 are formed symmetrically with respect to the seal portion 22.
  • the seal portion 22 is formed to have a predetermined width (for example, a width of about 5 to 20 mm) in the circumferential direction, it has excellent sealing properties.
  • the right end surface 24 of the rotor 2 is in sliding contact with the first end plate 11, and the left end surface 25 of the mouth 2 is in sliding contact with the second end plate 12 with a small gap or little gap. It is formed as follows.
  • the output shaft 3 is for taking out the rotation of the rotor 2 to the outside of the housing 1.
  • the output shaft 3 is disposed concentrically with the axis X of the rotor housing chamber 5. It extends outside the housing 1 through the shaft hole in the center of the stator 2 and the holes in the first and second end plates 11 and 12, and the output shaft 3 is connected to the rotor 2 via a key.
  • the output shaft 3 supporting the rotor 2 is fixed to the first and second end plates 11 and 12 via bearings 32 and 33 so as to be rotatable at both ends.
  • Reference numerals 14 and 15 denote bolts for fixing the first and second end plates 11 and 12 to the housing body
  • reference numeral 13 denotes a holding plate (this can be omitted)
  • reference numeral 16 Is a bolt for fixing the holding plate 13 to the housing body 10.
  • a slit-shaped mounting hole 40 parallel to the axis X of the rotor housing chamber 5 is formed in the housing main body 10 at one side of the housing main body 10.
  • a movable partition member 41 is slidably mounted in the mounting hole 40, and the movable partition member 41 is provided with three compression members mounted between the movable partition member 41 and the spring receiving member 42.
  • the coil spring 43 elastically urges toward the rotor accommodating chamber 5, so that the seal portion 41s at the tip of the movable partition member 41 is always in sliding contact with the outer peripheral surface of the rotor 2 so as to be able to seal. is there.
  • the seal part 41 s has a width of at least about 2 to 3 mm in the circumferential direction, and is in sliding contact with the outer peripheral surface of the rotor 2 in a face-to-face manner to prevent passage of the fluid.
  • the movable partition member 41 is made of a metal material having low friction and excellent wear resistance (for example, Or brass, copper-lead alloy, aluminum alloy, etc.), but may be made of a synthetic resin material with high strength and rigidity, or a material such as FRP (textile reinforced synthetic resin) or ceramic.
  • the movable partition member 41 slides on the inner surface of the mounting hole 40 so as to be substantially sealable with a small gap.
  • the inner surface of the mounting hole 40 is hardened (nitriding, carburizing, etc.) or a small gap between the inner surface of the mounting hole 40 and the movable partition member 41 is supplied. Providing suitable lubrication means also improves the sealing performance.
  • the spring receiving member 42 is fixed to the housing main body 10 with a gasket 46 (which can be omitted) by, for example, six bolts 44. Pressurized air of a predetermined pressure is supplied to the spring accommodating chamber 47 between the movable partition member 41 and the spring receiving member 42, and the movable partition member 41 is compressed by the compressed air and three compression coil springs 43.
  • the movable partition member 41 may be configured to be elastically urged, or may be configured to elastically urge the movable partition member 41 only by pressurized air.
  • the housing main body 10 has a first passage 6 opened on the right end surface thereof formed above the mounting hole 40.
  • the housing main body 10 has a second passage 7 opened on the right end surface thereof.
  • One or a plurality of first ports 6a formed below the hole 40 and branched from the first passage 6 are opened to the rotor housing chamber 5 at a position near the upper side of the movable partition member 41, and the second passage 7
  • One or a plurality of second boats 7a branched from the opening are opened to the rotor housing chamber 5 near the lower side of the movable partition member 41.
  • a working chamber 50 formed outside the rotor 2 is divided into a first working chamber 51 and a second working chamber 52 by a movable partition member 41, and
  • the movable partition member 41 advances and retreats while sliding the seal portion 41 s at the tip of the movable partition member 41 against the outer peripheral surface of the rotor 2, so that the rotor 2 is rotatable.
  • a hydraulic or pressurized air is supplied to the first passage 6 and the second passage 7 is released to an oil tank or the atmosphere, the fluid pressure is supplied from the first port 6a to the first working chamber 51, 1 Fluid pressure in the working chamber 51 acts on the pressure receiving projection 21 of the rotor 2.
  • Second working chamber 5 2 Since the pressure of the fluid inside is the drain pressure or the atmospheric pressure, the rotor 2 has a pressure difference between the fluid pressure of the first working chamber 51 and the drain pressure or the atmospheric pressure of the second working chamber 52, and the pressure receiving protrusion 2
  • the torque equal to the product of the cross-sectional area of the rectangular shape of 1 and the distance from the axis X of the rotor 2 (the center X of the rotor chamber 5) to the pressure receiving center of the pressure receiving protrusion 21 acts on the rotor 2. Rotate in the direction of arrow A. However, when the movable partition member 41 is in contact with the curved surface 23 on the trailing side in the rotor rotation direction of the pressure receiving projection 21, the torque is somewhat reduced because the pressure receiving area is small.
  • the supply of the fluid pressure causes the first working chamber 51 to expand, and the discharge of the fluid causes the second working chamber 52 to shrink while the rotor 2 rotates, and the seal portion 22 to move the movable partition member 4.
  • the first working chamber 51 communicates with the second port ⁇ a, but the rotor 2 continues to rotate by inertia and the movable partition member 4
  • the seal portion 22 of the rotor 2 passes through the movable partition member 41 and the first port 6a
  • the fluid pressure of the first working chamber 51 acts on the pressure receiving projection 21 of the rotor 2, and By repeating in the same manner as described above, the rotor 2 rotates continuously and smoothly.
  • the first working chamber 51 has the drain pressure or the atmospheric pressure
  • the rotor 2 rotates in the direction of arrow B.
  • the first port 6a or the second port 7a on the leading side in the rotation direction of the rotor 2 with respect to the movable partition member 41 becomes a supply port for supplying fluid pressure, and the rotation of the rotor 2
  • the second port ⁇ a or the first port 6a on the directional trailing side is the outlet port for discharging fluid.
  • the seal portion 22 of the pressure receiving projection 21 is in sliding contact with the inner peripheral surface of the rotor housing chamber 5 in a surface-contact manner, the seal portion 22 has excellent sealing properties, and the seal portion 22 is hardly worn and has durability. Is improved.
  • the pressure receiving projection 21 is formed to have a narrow width covering about 1/4 of the outer peripheral portion of the rotor 2, the sealing portion 22 of the rotor 2 passes through the supply ports (6a, 7a). . Since the pressure receiving area is maximized early, the output torque is maximized early.
  • the pressure receiving projection 21 is formed as follows. It can be formed in about 1/3 of the outer circumference of the motor 2 or in a range of about 1 / 2.In this case, the rate of increase of the radius from the axis of the curved surface 23 is smaller, and The resistance acting on the rotor 2 from the partition member 41 is reduced, and the forward / backward responsiveness of the movable partition member 41 is improved.
  • the urging force for elastically urging the movable partition member 41 toward the rotor storage chamber 5 is greater than the force of the movable partition member 41 being pushed outward by the fluid pressure acting on the movable partition member 41.
  • the movable partition member 41 needs to have strength and rigidity so as not to be deformed by a fluid pressure acting on the movable partition member 41.
  • the hydraulic motor M is a hydraulic motor
  • the hydraulic circuit is as shown in FIG. 4, and the hydraulic tank 53, the hydraulic pump 54, and the electromagnetic directional valve 55 supply the hydraulic pressure to the first port 6a. Then, the rotor 2 rotates clockwise. Conversely, when hydraulic pressure is supplied to the second port 7a, the rotor 2 rotates counterclockwise.
  • the fluid pressure motor M when used as the fluid pressure pump P, an electric motor or an air motor for rotating the output ⁇ 3 is connected to the output ⁇ 3, and the output shaft 3 is driven ⁇ (3)
  • the drive shaft (3) is driven to rotate in the direction of arrow A in FIG. 3
  • the fluid before pressurization is sucked from the first port 6a through the first passage 6, and
  • the fluid pressure discharged from the 2 port 7a is supplied to the outside from the second passage 7. That is, the fluid sucked into the first working chamber 51 moves to the second working chamber 52 via the rotation of the rotor 2, and the fluid in the second working chamber 52 is added by the rotation of the rotor 2. Pressurized and discharged to the second port 7a.
  • the hydraulic circuit when the fluid pressurizing pump P is a hydraulic pump is as shown in FIG. 5, in which the electric motor 56 drives the drive shaft (3) to rotate, and the oil in the oil tank 57 is supplied to the first passage. After passing through 6, the fluid is sucked into the first port 6a, and the pressurized fluid is discharged to the second port ⁇ a and supplied to the outside from the second passage 7.
  • the housing 1A is welded to the housing main body 60 made of a cylindrical member, the first end plate 61, the second end plate 62, and the side of the housing main body 60. It is composed of a block member 63 and the like fixed at.
  • a port storage chamber 5A similar to the rotor storage chamber 5 is formed, and a rotor 2A is stored in the rotor storage chamber 5A.
  • the rotor 2A is the same as the rotor 2 and includes a rotor body 64 and a pressure receiving protrusion 65 integrally formed therewith.
  • a sealing portion 66 is provided at the tip of the pressure receiving protrusion 65. Curved surfaces 67, 67 are formed on both sides of the seal portion 66.
  • An annular seal groove 78 is formed on each of the left and right end surfaces of the rotor 2A, and an annular seal member 79 is mounted in these seal grooves 78.
  • Reference numerals 68 and 69 denote bolts and nuts connecting the first end plate 61 and the second end plate 62 with the housing body 60 interposed therebetween, and reference numeral 32A denotes a bearing.
  • the output shaft 3A is similar to the output shaft 3 and extends outside the housing 1A through the first end plate 61, the rotor 2A, and the second end plate 62, and is opposed to the rotor 2A. It is fixed so that it cannot rotate.
  • a mounting hole 70 is formed in the housing body 60 and the block member 63, and the first movable partition member 72 and the second movable partition member 73 are formed in the mounting hole 70.
  • the movable partition member 7 comprises a spring receiving member 7 4 fixed to the outer surface of the block member 6 3 with a plurality of bolts 75, and a first movable partition member 7. 2 is urged toward the rotor housing chamber 5 A by three compression coil springs 76, and the second movable partition member 73 is moved toward the rotor housing chamber 5 A by three compression coil springs 77. Being energized.
  • Reference numeral 73a denotes a cutout portion formed in the second movable partition member 73 to apply the force of the spring 76 to the first movable partition member 72
  • reference numeral 72a denotes Apply the force of the spring 7 7 to the second movable partition member 7 3
  • the notch formed in the first movable partition member 72 to be added is shown. However, the notches 72a and 73a may be omitted as necessary.
  • a first passage 6A and a second passage 7A having an oval cross section are formed in the same manner as in the previous embodiment, and a first port 6b communicating with the first passage 6A, A second port ⁇ b communicating with the second passage 7A is formed in the housing 1A.
  • the operation of the fluid pressure monitor MA is the same as that of the fluid pressure motor M, except that the movable partition member ⁇ 1 is composed of a first movable partition member 72 and a second movable partition member 73,
  • the movable seal member 7 2 s at the front end of the movable partition member 72 and the seal portion 73 s at the front end of the second movable partition member 73 are in sliding contact with the outer peripheral surface of the rotor 2 A.
  • the contact portion between the partition member 71 and the rotor 2A is double-sealed, and the sealing performance is improved, making it suitable for a hydraulic motor or the like that supplies a relatively high fluid pressure.
  • annular seal members 67 are mounted on the left and right end surfaces of the rotor 2A, it is suitable for a hydraulic motor such as a hydraulic motor that supplies a relatively high fluid pressure.
  • the fluid pressure motor M A of this embodiment can also be applied as a fluid pressure pump similarly to the fluid pressure motor M.
  • a seal 80 at the tip of the pressure receiving projection 65A of the rotor 2B is formed in the circumferential direction to have a wide width of, for example, about 10 mm or more.
  • curved surfaces 8 1, 81 which gradually increase in diameter from the peripheral surface of the rotor body 64 and reach the seal portion 80 are formed, and the shaft of the rotor 2B is formed on the seal portion 80.
  • a seal groove 82 oriented in the direction of the center is formed, and the seal groove 82 is made of synthetic rubber or synthetic resin (eg, nylon, etc.) or metal (eg, iron, brass, copper lead alloy, aluminum alloy, etc.).
  • the seal member 83 is attached, and the seal member 83 is in surface contact with the inner peripheral surface of the rotor housing chamber 5A.
  • a communication hole communicating from the curved surfaces 8 1, 8 1 to the bottom of the seal groove 82 is formed. It is also possible to employ a configuration in which the member 83 is urged by fluid pressure.
  • An annular seal groove 78 is formed on each of the left and right end surfaces of the rotor 2A, and an annular seal member 79 is attached to the seal groove 78.
  • the sealing member 85 is also mounted on the sealing groove 85 extending to the sealing groove 82.
  • the seal members 79 and 86 may be made of synthetic rubber, synthetic resin (for example, nylon, etc.) or metal, or may be a composite seal member including a plurality of parts. With the above configuration, the sealing performance can be improved.
  • a first vane mechanism 4A and a second vane mechanism 4B are provided in a housing 1A so as to be rotationally symmetric with respect to an axis X of a rotor accommodating chamber 5A.
  • the first boat 6b and the second port 7b are formed on the upper and lower sides of the first vane mechanism 4A, and the second port 7b and the first port are formed on the upper and lower sides of the second vane mechanism 4B.
  • Port 6b is formed.
  • the rotor 2C is formed with two pressure receiving portions 65, 65 every 180 degrees in the circumferential direction in a rotationally symmetric manner with respect to the axis X thereof.
  • the output torque force is about twice as large as that of the fluid pressure motor MA1, so the fluid pressure motor is downsized. it can.
  • the two pressure receiving parts 65, 65 contact the vane mechanism 4A, 4B at the same time, the output torque will decrease a little, so the two pressure receiving parts 65, 65 will be 4A, 4B, the force to provide the vane mechanism 4A, 4B non-rotationally symmetric with respect to the center X, or the two pressure receiving portions 65, 65 with respect to the axis X. It may be formed non-rotationally symmetric.
  • the hydraulic circuit when using the hydraulic motor MA 2 in Fig. 11 as a hydraulic motor is As shown in Fig.12.
  • Reference numeral 90 denotes an oil tank, 91 denotes a hydraulic pump, and 92 denotes an electromagnetic directional control valve.
  • Reference numeral 93 denotes an electric motor that rotationally drives the drive shaft 3A
  • reference numeral 94 denotes an oil tank.
  • the fluid pressure motor MA3 shown in FIG. 14 instead of the rotor 2C of the fluid pressure motor MA2 shown in FIG. 11, three pressure receiving protrusions are provided on the outer periphery of the rotor 2D every 120 degrees. 65, 65, 65 are formed.
  • the operation of the fluid pressure motor M A3 is the same as that of the fluid pressure motor MA 2. However, since each of the three pressure receiving protrusions 65, 65, 65 comes into contact with the vane mechanism 4A, 4B, the torque fluctuation force is reduced. Then, the efficiency of the fluid pressure motor M A3 increases.
  • each vane mechanism In the case of a relatively large hydraulic motor or hydraulic pump, three or more vane mechanisms and first and second ports corresponding to each vane mechanism are provided, and four or more The pressure receiving projection 65 may be formed.
  • the housing of the first fluid pressure motor Ml includes a first end plate 101, a housing main body 104A, and an intermediate plate 102A, and a cylindrical rotor housing chamber 105 in this housing.
  • A is formed, and the rotor accommodating chamber 105A accommodates a rotor 106A similar to the rotor 2 described above, and a vane mechanism 107A is provided on the side of the housing body 104A.
  • a mounting hole 109 A for mounting the movable partition member 108 A of the vane mechanism 107 A is formed in the housing body 104 A, and the first end plate 101 and the intermediate plate 1 are formed.
  • the movable partition member 108A is slidably mounted in the mounting hole 109A, and the spring 110 is moved toward the rotor accommodating chamber 105A. Being energized.
  • the panel receiving plate 1 1 1 is fixed to the housing main body 104 A with bolts 1 12.
  • the housing of the second fluid pressure motor M2 includes the intermediate plate 102A, a housing body 104B having the same structure as the housing body 104A, and an intermediate plate 102B. Have been.
  • the housing of the third fluid pressure motor M3 is composed of the intermediate plate 102B, a housing body 104 having the same structure as the housing body 104A, and a second end plate 103. Has been established. Other structures are the same as those of the first fluid pressure motor Ml, so the rotor storage chamber 105C, rotor 106C, vane mechanism 107C, mounting hole 109C, OK The description of the moving partition member 108C is omitted.
  • An output shaft 113 common to the three fluid pressure motors M 1, M 2, and M 3 includes a first end plate 101, a rotor 106 A, an intermediate plate 102 A, and a rotor 1. 06 B, the intermediate plate 102 B, the rotor 106 C, and the second end plate 103, and extends to the outside of the second end plate 103.
  • the end plates 101, 103 and the two intermediate plates 102A, 102B are rotatably supported via bearings 114, respectively, and the output shaft 113 is connected to the rotor 106A.
  • 106 B, and 106 C are connected to each other so that they cannot rotate relative to each other.
  • An example of a fluid passage formed in a housing when the three fluid pressure motors M 1, M 2, and M 3 are driven in series will be described.
  • the housing main body 104A, 104B, 104C has a first passage 12OA, 12OB, 120C located above the vane mechanism and a vane mechanism. Second passages 12 A, 12 B, and 12 C located on the lower side are formed. 1st end plate 1 0 1 shaped
  • the formed vertical hole 122 communicates with the first passageway 12OA, and the vertical hole 123A formed in the intermediate plate 102A communicates with the second passageway 122A and the first passageway 122A.
  • the vertical hole 123B formed in the intermediate plate 102B communicates with the passage 120B, and communicates with the second passage 122B and the first passage 120C.
  • the vertical hole 122 formed in the end plate 103 communicates with the second passage 122C.
  • the first passage 120 A, 120 B, 120 C is provided with a movable partition member 108 A, 108 B, 108 In the vicinity of the upper side of C, the first ports 125 A, 125 B, 125 C communicating with the rotor accommodating chambers 105 A, 105 B, 105 C, and the second passages 12 A, 1 A 2nd B, 121C is connected to the rotor housing chambers 105A, 105B, 105C in the vicinity of the lower side of the movable partition member 108A, 108B, 108C.
  • Ports 126 A, 126 B, and 126 C are formed, respectively, powerfully.
  • the fluid pressure that rotationally drives the rotor 106A of the first fluid pressure motor M1 is supplied to the second fluid pressure motor M2, and after rotating the rotor 106B, the third fluid pressure motor After being supplied to M3 and rotating the rotor 106C, it is discharged from the vertical hole 124.
  • the rotors 106A, 106B, 106C rotate in the direction of arrow A in FIG.
  • the fluid pressure is supplied from the vertical hole 124 and discharged from the vertical hole 122, the flow direction of the fluid pressure is reversed, and the rotor ⁇ 06 A, 106 B, 106 C , Rotate in the opposite direction to arrow A.
  • the three fluid pressure motors M1, M2, M3 are straightforward!
  • each fluid pressure motor When driven, the output torque of each fluid pressure motor does not increase so much because the pressure difference between the first working chamber and the second working chamber in each fluid pressure motor does not increase so much. Or, the pressure difference between the fluid pressure supplied to the 124 and the drain pressure discharged from the vertical hole 124 or 122 is increased, and the efficiency of utilizing the fluid pressure is improved.
  • the rotor 106A, 106B, 106C having the same structure, and the housing body 104 having the same structure have the same structure.
  • A, 104 B, 104 C, vane mechanism 107 A, 107 B, 107 C of the same structure can be used, and intermediate between the first end plate 101 and the second end plate 103
  • the plates 102A, 102B can be formed to have substantially the same structure.
  • the number of fluid pressure motors incorporated in the fluid pressure motor unit MU may be two or four or more. Also, the axial lengths of the plurality of fluid pressure motors can be made different.
  • the fluid pressure motor unit MU by independently forming the fluid passages in the fluid pressure motors M1, 2, and M3, it is possible to drive the individual fluid pressure motors independently. However, even in this case, the rotors 106A, 106B, and 106C rotate integrally.
  • the output torque can be switched to a plurality of steps, and the output shaft rotation speed can be set to a plurality of steps. Switching becomes possible. For example, in a hydraulic motor unit incorporating six hydraulic motors, the output torque can be switched to six stages (torque T1, T2, ⁇ T6) if the pressure of the supplied hydraulic pressure is constant. In addition, when the flow rate of the supplied fluid pressure is constant, the rotation speed can be switched to six stages (rotation speeds N1, N2, ⁇ ⁇ ⁇ N6).
  • the hydraulic motor unit MU is a hydraulic motor unit, and a hydraulic circuit when the hydraulic motor unit is driven in series is as shown in FIG. 17, for example.
  • the hydraulic circuit is provided with an oil tank 130, a hydraulic pump 131, an electromagnetic directional switching valve 132, and the like.
  • the hydraulic motor unit MU is a hydraulic motor unit, and a hydraulic circuit for driving the hydraulic motor units in parallel is as shown in FIG. 18, for example.
  • the hydraulic circuit includes an oil tank 133, a hydraulic pump 134, a solenoid directional control valve 135, and solenoid on-off valves 13 provided in the passages of the first ports 125A, 125B, and 125C, respectively.
  • the solenoid on-off valves 1336A and 1338A are opened and the solenoid on-off valve 1337A is closed.
  • the solenoid on-off valves 136A and 138A are closed and the solenoid on-off valve 137A is opened.
  • the oil in the first fluid pressure motor M1 circulates through the electromagnetic on-off valve 137A, and the rotor 106A enters an idling state.
  • a panel receiving bar 1 17 for receiving the outer end of the spring 110 is provided, The position may be switchable.
  • Each spring receiving bar 1 17 has, for example, three When the rods of the hydraulic cylinder 118 are connected to drive the fluid pressure motors M1, 2, M3, the hydraulic pump 118 sends the hydraulic pressure to the hydraulic cylinder 118 via the electromagnetic directional control valve 139. When the fluid pressure motors M1, M2, and M3 are not driven, the solenoid directional control valve 1 39 is switched to discharge the hydraulic pressure of the hydraulic cylinder 1 18 and the spring receiving bar 1 With a reversal of 17 forces, the biasing force of the spring 110 does not act on the movable partition members 108 A, 108 B, and 108 C. As a result, the rotors 106A, 106B, 106C are idle.
  • the fluid pressure motor unit MU is applicable as a fluid pressure pump unit.
  • the output shaft 113 is configured as a drive shaft (113) that is rotationally driven by an electric motor or an air motor.
  • the first boat 125A, 125B, 125C becomes a suction port for sucking the fluid before pressurization.
  • the second ports 126A, 126B, and 126C serve as discharge ports for discharging the pressurized fluid, and the first to third fluid pressure motors M1, M2, and the third to third fluids.
  • the pressure pumps are MlP, M2P, M3P.
  • the fluid pressure motor unit MU is configured as a hydraulic pump unit MUP, and a hydraulic circuit in a case where the hydraulic pump unit MUP is driven in series is, for example, as shown in FIG.
  • the drive shaft (113) is rotationally driven by an electric motor (142), and the oil supplied from the oil tank (143) is pressurized by the first fluid pressurizing pump (M1P) by the pressure P.
  • M1P first fluid pressurizing pump
  • the pressurized fluid is discharged from the third fluid pressurizing pump M 3 P.
  • the hydraulic circuit when the hydraulic pump units M UP are driven in parallel is as shown in FIG.
  • the drive shaft (113) is driven to rotate by an electric motor 144.
  • the solenoid on-off valves 146A and 147A are opened and the solenoid on-off valve 148A is closed.
  • the solenoid on-off valve 146A> 147A is closed and the solenoid on-off valve 148A is opened.
  • the oil in the first fluid pressurizing pump MILP circulates through the electromagnetic on-off valve 148A, and the rotor 106A idles.
  • the second fluid pressurizing pump M2P and the third fluid pressurizing pump M3P are driven.
  • the discharge amount of hydraulic pressure can be switched in three stages (discharge amount Q1, Q2, Q3), and the discharge pressure can be switched in three stages (discharge pressure P1, P2, P3). Can be switched. Then, assuming that Q 1> Q2> Q3 and PKP 2 ⁇ P 3, the combination of the discharge amount Q and the discharge pressure P is (Q l, P 1) (Q2, P 2), (Q3, P 3) Obviously, the discharge amount Q and the discharge pressure P is (Q l, P 1) (Q2, P 2), (Q3, P 3) Becomes
  • this hydraulic pump unit MUP is suitable, for example, as a hydraulic pump for driving a hydraulic actuator with various combinations of low load / high speed drive, medium load / medium speed drive, high load / low speed drive. It will be.
  • the configuration shown in FIG. 19 can be employed.
  • another embodiment of the fluid pressure motor unit will be described.
  • the air motor Ma and the hydraulic pump MP h are united like the fluid pressure motor unit MU, and the output shaft of the air motor Ma and the drive shaft of the hydraulic pump MP h are integrated. ⁇ It is composed of the member 150, and the air motor Ma is driven by the pressurized air supplied from the air pump 151, and the oil supplied from the oil tank 152 is pressurized by the hydraulic pump MPh and discharged. I do.
  • the hydraulic motor Mh and the small air pump MPa having a short length in the ⁇ direction are unitized in the same manner as the fluid pressure motor unit MU, and the air pump
  • the drive shaft of the MP a and the output shaft of the hydraulic motor M h are constituted by an integral shaft member 15 3, and the hydraulic motor M h is driven by the hydraulic pressure supplied from the hydraulic pump 15 4.
  • the air pump MPa is driven with the rotational driving force of the hydraulic motor M h to generate pressurized air, and the pressurizing fan is used as a vane mechanism.
  • the movable partition member 158 is urged toward the rotor 159 by the spring 157 of the spring storage chamber 156 and the pressurized air.

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

Abstract

Pompe/moteur hydraulique possédant un rotor de type rotatif, caractérisé en ce qu'une chambre abritant le rotor, de section circulaire, est formée dans un carter, en ce qu'un rotor est logé dans ladite chambre, en ce qu'une chambre hydraulique est formée à l'extérieur dudit rotor dans ladite chambre abritant ce dernier et en ce qu'un arbre conçu pour être solidaire en rotation dudit rotor fait saillie à l'extérieur dudit carter. Un épaulement de réception de pression est formé d'une pièce sur le rotor, et une partie d'étanchéité est formée sur cet épaulement, ladite partie d'étanchéité étant conçue pour être amenée en contact de surface coulissant avec la surface circonférentielle intérieure de la chambre du rotor. Un système d'aubes est prévu dans le carter, dans lequel l'élément de séparation mobile est sollicité en direction du rotor à l'aide d'un ressort, et d'autre part, dans le carter, un orifice d'alimentation et un orifice de sortie sont formés à certains endroits sur les côtés du système d'aubes. Une paire de systèmes d'aubes peut être prévue dans le carter, une pluralité d'épaulements de réception de pression peuvent être ménagés sur le rotor, et l'élément de séparation mobile de chaque système d'aubes peut être constitué d'une pluralité d'éléments. En outre, une pluralité des pompes/moteurs hydrauliques précités peuvent être disposés en série pour former une unité, et un arbre commun peut être prévu pour la pluralité de pompes/moteurs hydrauliques.
PCT/JP1993/001413 1992-09-29 1993-09-29 Pompe/moteur hydraulique Ceased WO1994008139A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28530192A JPH06108981A (ja) 1992-09-29 1992-09-29 流体圧ポンプ／モータ
JP4/285301 1992-09-29

Publications (1)

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WO1994008139A1 true WO1994008139A1 (fr) 1994-04-14

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037132A1 (fr) * 1996-03-29 1997-10-09 Xiaoying Yun Pompe rotative
WO1999058855A1 (fr) * 1998-05-08 1999-11-18 Xiaoying Yun Pompe a piston rotatif
CN101846071A (zh) * 2010-05-18 2010-09-29 常熟威玛乳品机械有限公司 粘性物料输送泵
US20150167668A1 (en) * 2012-04-26 2015-06-18 Closed Joint Stock Company "Novomet-Perm" Multistage vane pump
FR3028572A1 (fr) * 2014-11-19 2016-05-20 Renault Sa Pompe hydraulique a modules unitaires empilables pour modifier l'encombrement et la cylindree
CN106468178A (zh) * 2015-08-21 2017-03-01 姚镇 应用压动闸阀机构的转动装置、转动系统及流体机械
CN109681657A (zh) * 2017-10-18 2019-04-26 北京星油科技有限公司 闸阀、闸阀系统、转动装置及应用其的流体机械
CN110005606A (zh) * 2019-03-28 2019-07-12 云大信 一种卡槽泵装置和流量调节方法

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EP2483563A2 (fr) * 2009-09-28 2012-08-08 Tecumseh Products Company Compresseur rotatif
CN102852788B (zh) * 2012-07-16 2015-12-02 杭州玛瑟斯液压技术有限公司 一种叶片泵
DE102013101029A1 (de) * 2013-02-01 2014-08-07 Emitec Gesellschaft Für Emissionstechnologie Mbh Vorrichtung zur Bereitstellung eines flüssigen Additivs
CN104912599A (zh) * 2014-05-16 2015-09-16 摩尔动力(北京)技术股份有限公司 圆形缸多级流体机构及包括其的装置
CN107061278B (zh) * 2017-04-28 2020-11-24 广东美芝制冷设备有限公司 旋转压缩机及其滑片、滑片槽和压缩组件
CN110296076B (zh) * 2019-07-12 2020-10-16 珠海格力节能环保制冷技术研究中心有限公司 滚子组件、泵体组件、压缩机、气体压缩系统和热泵系统
CN112796989B (zh) * 2020-12-30 2022-08-23 北京星油科技有限公司 转动装置、转动系统和流体机械
CN112943601A (zh) * 2021-03-16 2021-06-11 大连绿鑫泵业有限公司 一种新型鳄口泵
CN115143109A (zh) * 2022-07-27 2022-10-04 大连奇想科技有限公司 柱面密封转子压缩机和泵及马达
WO2025041317A1 (fr) * 2023-08-23 2025-02-27 オカムラ有限会社 Machine rotative à pression de fluide

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JPS49113203U (fr) * 1973-01-25 1974-09-27
JPS5217908U (fr) * 1976-06-16 1977-02-08
JPS5390008A (en) * 1977-01-19 1978-08-08 Kato Kaken Yuugen Rotary body for use in transferring fluid material and generation of torque
JPS57203895A (en) * 1981-06-08 1982-12-14 Mitsubishi Heavy Ind Ltd Rotary compressor
JPS5914990U (ja) * 1982-07-22 1984-01-30 芝浦メカトロニクス株式会社 高粘度ポンプ

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JPS4928725A (fr) * 1972-07-14 1974-03-14
JPS49113203U (fr) * 1973-01-25 1974-09-27
JPS5217908U (fr) * 1976-06-16 1977-02-08
JPS5390008A (en) * 1977-01-19 1978-08-08 Kato Kaken Yuugen Rotary body for use in transferring fluid material and generation of torque
JPS57203895A (en) * 1981-06-08 1982-12-14 Mitsubishi Heavy Ind Ltd Rotary compressor
JPS5914990U (ja) * 1982-07-22 1984-01-30 芝浦メカトロニクス株式会社 高粘度ポンプ

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997037132A1 (fr) * 1996-03-29 1997-10-09 Xiaoying Yun Pompe rotative
WO1999058855A1 (fr) * 1998-05-08 1999-11-18 Xiaoying Yun Pompe a piston rotatif
US6468045B1 (en) 1998-05-08 2002-10-22 Xiaoying Yun Rotary piston pump
CN101846071A (zh) * 2010-05-18 2010-09-29 常熟威玛乳品机械有限公司 粘性物料输送泵
US20150167668A1 (en) * 2012-04-26 2015-06-18 Closed Joint Stock Company "Novomet-Perm" Multistage vane pump
US9297380B2 (en) * 2012-04-26 2016-03-29 Joint Stock Company “Novomet-Perm” Multistage vane pump
FR3028572A1 (fr) * 2014-11-19 2016-05-20 Renault Sa Pompe hydraulique a modules unitaires empilables pour modifier l'encombrement et la cylindree
EP3023642A1 (fr) * 2014-11-19 2016-05-25 Renault S.A.S. Pompe hydraulique a modules unitaires empilables pour modifier l'encombrement et la cylindree
CN106468178A (zh) * 2015-08-21 2017-03-01 姚镇 应用压动闸阀机构的转动装置、转动系统及流体机械
WO2017032271A1 (fr) * 2015-08-21 2017-03-02 姚镇 Appareil tournant et système tournant appliquant un mécanisme de robinet-vanne en appui, et machinerie à fluide
CN106468178B (zh) * 2015-08-21 2018-06-08 北京星旋世纪科技有限公司 应用压动闸阀机构的转动装置、转动系统及流体机械
US11111918B2 (en) 2015-08-21 2021-09-07 Beijing Rostar Technology Co. Ltd. Rotary device, rotary system, and fluid machinery, to which press-actuated gate valve mechanism is applied
CN109681657A (zh) * 2017-10-18 2019-04-26 北京星油科技有限公司 闸阀、闸阀系统、转动装置及应用其的流体机械
CN109681657B (zh) * 2017-10-18 2020-12-25 北京星油科技有限公司 转动装置及应用其的流体机械
CN110005606A (zh) * 2019-03-28 2019-07-12 云大信 一种卡槽泵装置和流量调节方法

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