EP3187733A1 - Hydraulic positive displacement machine - Google Patents

Hydraulic positive displacement machine Download PDF

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Publication number
EP3187733A1
EP3187733A1 EP15003680.4A EP15003680A EP3187733A1 EP 3187733 A1 EP3187733 A1 EP 3187733A1 EP 15003680 A EP15003680 A EP 15003680A EP 3187733 A1 EP3187733 A1 EP 3187733A1
Authority
EP
European Patent Office
Prior art keywords
neck
machine
compensation
manifold
channel
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.)
Withdrawn
Application number
EP15003680.4A
Other languages
German (de)
French (fr)
Inventor
Pawel Sliwinski
Piotr Patrosz
Kazimierz Poznanski
Piotr Ruda
Andrzej Gocek
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.)
Fama Spolka Z Ograniczona Odpowiedzialnoscia
Original Assignee
Fama Spolka Z Ograniczona Odpowiedzialnoscia
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Publication date
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Priority to EP15003680.4A priority Critical patent/EP3187733A1/en
Publication of EP3187733A1 publication Critical patent/EP3187733A1/en
Withdrawn legal-status Critical Current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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons

Definitions

  • the subject of the invention is a hydraulic positive displacement machine with reverse kinematics designed to work as a hydraulic motor or a hydraulic pump.
  • the displacement machine of the planetary cam type known from Patent Description PL 185724 , with axial clearance compensation designed for motor or pump operation in which the working medium is liquid, particularly liquid with low viscosity.
  • the positive displacement machine is of a plate design and the essence of the invention lies in the fact that the plate elements of the machine are axial and integrated with screws located in an axis of eight humps convex to the inside.
  • the intermediate plates closing the machine's working chambers at the front contain supply channels and channels distributing the working liquid.
  • the supply channels are also connected to the compensation surface volumes located on the external sides of the intermediate plates. This is the reason why the inner front surfaces of the intermediate plates are pressed to the front surfaces of the moving satellites and the rotor interacting with them by the force of pressure of the working fluid reaching the compensation surface volume.
  • the positive displacement pump with equipment for a hydraulic drive known from the description of Invention Patent Application P. 381396 , which finds application particularly in the drives of motor vehicles with an all-wheel drive, without using the differential mechanism of the gearbox, clutch and brakes.
  • the pump consists of a casing made of two hemispheres joined by screws.
  • the piston in the form of a flat disc, mounted in the pitch line, interacts with a flat semicircular gate, slide placed on the bearings in the clearance of the driver mounted in the drive shaft.
  • a tiltable block with bearings with a piston is terminated by a control rod. Suction and pressure ports come out of the working chambers.
  • the pump and motor assembly is encased with an open working medium system with recesses in the casing, liquid pipes and a liquid tank open to atmospheric pressure.
  • the positive displacement pump known from the description of Invention Patent Application P.381617 or a hydraulic motor with a steady and fluid shift of performance which finds application particularly in the drives of motor vehicles, without using the traditional differential mechanism, gearbox, clutch and brakes.
  • the casing is made of two hemispheres with a rotary joint.
  • the drive shafts with drivers, with slide mounted identical hemispherical hinged gates, are set on the hemispheres of the casing at an acute angle with respect to the cylinder pitch plane. Suction and pressure ports are led out of the working chambers.
  • the pump's performance is controlled by a lever fitted to the rotary hemisphere of the casing.
  • the pump and motor assembly requires that an open working liquid system is installed.
  • the satellite working mechanism of a hydraulic displacement machine comprising a rotor (WR) formed on a circle with radius R1, teeth and curvature (OB) matching the satellite teeth (ST) contour which is characteristic in that the rotor (WR) humps in tip areas are formed from arcs with a radius in the range ⁇ 0.14 R1; 1.0 R1>.
  • the contour of satellite teeth (ST) in the contact area is an involute line which passes into an arc line with radius R6 in the base area, and then, into an arc line with radius R7, and then passes into an arc line with radius R6 which passes into an involute line in the contact area.
  • the line passes into an arc line with radius R6, and then, into an arc line with radius R7, and then passes into an arc line with radius R6.
  • the tooth root height is at most equal to the tooth head height.
  • the contour of satellite teeth (ST) in the contact area is an involute line where the involute line in the base area passes into an arc line with radius R8, and then, in the contact area, passes into an involute line which in the tip area passes into an arc line with radius R8.
  • the essence of the invention is a hydraulic positive displacement machine with reverse kinematics consisting of a housing with a neck and a working mechanism constituting a planet set on the neck, a curvature with satellites placed between the planet and the curvature and it has bearings and collector channels characterised by having a rotating housing relative to the neck which is favourably immobile.
  • the rotating housing is set on bearings directly or indirectly through the front manifold on the neck.
  • the bearings are set on a part of the neck or the front manifold from the side of and close to the port fixing the positive displacement machine.
  • the favourably rotating housing has a permanently embedded curvature.
  • the neck has at least one longitudinal channel that is connected to at least one radial channel distributing liquid in the manifold permanently embedded circumferentially on it.
  • the manifold has adjustable dislocation along the neck axis which is limited by a nut with a ring, a lock pin and a lock ring.
  • the radial channel is connected to the compensation pockets via the compensation pocket channel.
  • the number of compensation chambers is not greater than the number of compensation channels connecting liquid distribution channels with the working chambers.
  • the compensation pocket area is at the height of the working chamber.
  • As least one inflow/outflow channel is connected to the compensation pockets in the neck or in the front manifold.
  • the invention finds application in drives of e.g. hoists, belt conveyors, road wheels of vehicles. It finds application in the drives of a positive displacement machine with a rotating hydraulic motor casing with a rotating casing and it will help design such drives without additional couplers, coupling gears and bearing assemblies.
  • the invention may have the features of a winch drum, a conveyor belt roller or a vehicle drive wheel.
  • the invention simplifies the design of the device in which it is used.
  • the positive displacement machine has compensation pockets, the task of which is to limit the axial clearance of elements of the working mechanism (curvature and satellites) when the machine is under load, which will result in reducing leaks in the working mechanism and enhance the machine's performance.
  • Fig. 1 shows an axial section of the positive displacement machine with a front manifold
  • Fig. 2 shows an axial section of the positive displacement machine without a front manifold
  • Fig. 3 shows the cross section A-A from Fig. 1 with separated compensation pockets
  • Fig. 4 shows the cross section B-B and C-C from Fig.1
  • Fig. 5 shows the cross-sections B-B and C-C from Fig.1 with the circumferential compensation pocket.
  • the hydraulic displacement machine with reverse kinematics consists of rotating housing 1 relative to neck 2 which is set on bearings 9. Bearings 9 are set on a part of neck 2 on the side of and close to manifold 23 fixing the positive displacement machine.
  • Rotating housing 1 has permanently embedded curvature 4.
  • Neck 2 has at least one longitudinal channel 17 that is connected to at least one radial channel 19 distributing liquid in manifold 6 permanently embedded circumferentially on neck 2.
  • Manifold 3 has adjustable dislocation along the axis of neck 2 which is limited by nut 10 with ring 11 and lock pin 12 and lock ring 13.
  • Radial channel 19 which distributes liquid is connected to compensation pocket 21 by pocket compensation channel 20. Compensation pocket field 21 is at the height of working chamber 25. In neck 2 it has one inflow/outflow channel 18 connected to compensation pockets 21.
  • the hydraulic displacement machine with reverse kinematics consists of rotating housing 1 relative to immobile neck 2 which is set on bearings 9. Bearings 9 are set on a part of front manifold 24 from the side of and close to port 23 fixing the positive displacement machine.
  • Rotating housing 1 has permanently embedded curvature 4.
  • Neck 2 has at least two longitudinal channels 17 that are connected to two radial channels 19 distributing liquid in manifold 6 permanently embedded circumferentially on neck 2.
  • Manifold 6 has adjustable dislocation along the axis of neck 2 which is limited by nut 10 with ring 11 and lock pin 12 and lock ring 13.
  • Radial channel 19 which distributes liquid is connected to compensation pocket 21 via compensation pocket channel 20.
  • the number of compensation pockets 21 is equal to the number of compensation channels 20 connecting liquid distribution channels 19 with working chambers 25. Compensation pocket field 21 is at the height of working chamber 25.
  • In front manifold 24 it has one inflow/outflow channel 18 connected to compensation pockets 21.

Abstract

A hydraulic positive displacement machine with reverse kinematics consisting of a housing with a neck and a working mechanism constituting a planet set on the neck, a curvature with satellites placed between the planet and the curvature and it has bearings, a collector and channels characterised in that it has rotating housing /1/ relative to neck /2/.

Description

  • The subject of the invention is a hydraulic positive displacement machine with reverse kinematics designed to work as a hydraulic motor or a hydraulic pump.
  • The displacement machine of the planetary cam type, known from Patent Description PL 185724 , with axial clearance compensation designed for motor or pump operation in which the working medium is liquid, particularly liquid with low viscosity. The positive displacement machine is of a plate design and the essence of the invention lies in the fact that the plate elements of the machine are axial and integrated with screws located in an axis of eight humps convex to the inside. In addition, the intermediate plates closing the machine's working chambers at the front contain supply channels and channels distributing the working liquid. The supply channels are also connected to the compensation surface volumes located on the external sides of the intermediate plates. This is the reason why the inner front surfaces of the intermediate plates are pressed to the front surfaces of the moving satellites and the rotor interacting with them by the force of pressure of the working fluid reaching the compensation surface volume.
  • The positive displacement pump with equipment for a hydraulic drive, known from the description of Invention Patent Application P. 381396 , which finds application particularly in the drives of motor vehicles with an all-wheel drive, without using the differential mechanism of the gearbox, clutch and brakes. The pump consists of a casing made of two hemispheres joined by screws. The piston in the form of a flat disc, mounted in the pitch line, interacts with a flat semicircular gate, slide placed on the bearings in the clearance of the driver mounted in the drive shaft. A tiltable block with bearings with a piston is terminated by a control rod. Suction and pressure ports come out of the working chambers. The pump and motor assembly is encased with an open working medium system with recesses in the casing, liquid pipes and a liquid tank open to atmospheric pressure.
  • The positive displacement pump known from the description of Invention Patent Application P.381617 or a hydraulic motor with a steady and fluid shift of performance which finds application particularly in the drives of motor vehicles, without using the traditional differential mechanism, gearbox, clutch and brakes. The casing is made of two hemispheres with a rotary joint. The drive shafts with drivers, with slide mounted identical hemispherical hinged gates, are set on the hemispheres of the casing at an acute angle with respect to the cylinder pitch plane. Suction and pressure ports are led out of the working chambers. The pump's performance is controlled by a lever fitted to the rotary hemisphere of the casing. The pump and motor assembly requires that an open working liquid system is installed.
  • The satellite working mechanism of a hydraulic displacement machine, known from Patent Description PL 218888 , comprising a rotor (WR) formed on a circle with radius R1, teeth and curvature (OB) matching the satellite teeth (ST) contour which is characteristic in that the rotor (WR) humps in tip areas are formed from arcs with a radius in the range <0.14 R1; 1.0 R1>. The minimum and maximum values of indentations and convexities are within the Wmin. ≤0; 0.30 R1> and Umax ≤ =0; 0.30
  • R1> ranges, respectively. The contour of satellite teeth (ST) in the contact area is an involute line which passes into an arc line with radius R6 in the base area, and then, into an arc line with radius R7, and then passes into an arc line with radius R6 which passes into an involute line in the contact area. In the tip area the line passes into an arc line with radius R6, and then, into an arc line with radius R7, and then passes into an arc line with radius R6. The tooth root height is at most equal to the tooth head height. In another invention the contour of satellite teeth (ST) in the contact area is an involute line where the involute line in the base area passes into an arc line with radius R8, and then, in the contact area, passes into an involute line which in the tip area passes into an arc line with radius R8.
  • The essence of the invention is a hydraulic positive displacement machine with reverse kinematics consisting of a housing with a neck and a working mechanism constituting a planet set on the neck, a curvature with satellites placed between the planet and the curvature and it has bearings and collector channels characterised by having a rotating housing relative to the neck which is favourably immobile. The rotating housing is set on bearings directly or indirectly through the front manifold on the neck. The bearings are set on a part of the neck or the front manifold from the side of and close to the port fixing the positive displacement machine. The favourably rotating housing has a permanently embedded curvature. The neck has at least one longitudinal channel that is connected to at least one radial channel distributing liquid in the manifold permanently embedded circumferentially on it. The manifold has adjustable dislocation along the neck axis which is limited by a nut with a ring, a lock pin and a lock ring. The radial channel is connected to the compensation pockets via the compensation pocket channel. The number of compensation chambers is not greater than the number of compensation channels connecting liquid distribution channels with the working chambers. The compensation pocket area is at the height of the working chamber. As least one inflow/outflow channel is connected to the compensation pockets in the neck or in the front manifold.
  • The invention finds application in drives of e.g. hoists, belt conveyors, road wheels of vehicles. It finds application in the drives of a positive displacement machine with a rotating hydraulic motor casing with a rotating casing and it will help design such drives without additional couplers, coupling gears and bearing assemblies. The invention may have the features of a winch drum, a conveyor belt roller or a vehicle drive wheel. The invention simplifies the design of the device in which it is used. According to the invention the positive displacement machine has compensation pockets, the task of which is to limit the axial clearance of elements of the working mechanism (curvature and satellites) when the machine is under load, which will result in reducing leaks in the working mechanism and enhance the machine's performance.
  • The subject of the invention is shown in the figures where Fig. 1 shows an axial section of the positive displacement machine with a front manifold; Fig. 2 shows an axial section of the positive displacement machine without a front manifold; Fig. 3 shows the cross section A-A from Fig. 1 with separated compensation pockets; Fig. 4 shows the cross section B-B and C-C from Fig.1; Fig. 5 shows the cross-sections B-B and C-C from Fig.1 with the circumferential compensation pocket.
    • Embodiment Example I
  • In this Embodiment Example, the hydraulic displacement machine with reverse kinematics consists of rotating housing 1 relative to neck 2 which is set on bearings 9. Bearings 9 are set on a part of neck 2 on the side of and close to manifold 23 fixing the positive displacement machine. Rotating housing 1 has permanently embedded curvature 4. Neck 2 has at least one longitudinal channel 17 that is connected to at least one radial channel 19 distributing liquid in manifold 6 permanently embedded circumferentially on neck 2. Manifold 3 has adjustable dislocation along the axis of neck 2 which is limited by nut 10 with ring 11 and lock pin 12 and lock ring 13. Radial channel 19 which distributes liquid is connected to compensation pocket 21 by pocket compensation channel 20. Compensation pocket field 21 is at the height of working chamber 25. In neck 2 it has one inflow/outflow channel 18 connected to compensation pockets 21.
    • Embodiment Example II
  • In this Embodiment Example, the hydraulic displacement machine with reverse kinematics consists of rotating housing 1 relative to immobile neck 2 which is set on bearings 9. Bearings 9 are set on a part of front manifold 24 from the side of and close to port 23 fixing the positive displacement machine. Rotating housing 1 has permanently embedded curvature 4. Neck 2 has at least two longitudinal channels 17 that are connected to two radial channels 19 distributing liquid in manifold 6 permanently embedded circumferentially on neck 2. Manifold 6 has adjustable dislocation along the axis of neck 2 which is limited by nut 10 with ring 11 and lock pin 12 and lock ring 13. Radial channel 19 which distributes liquid is connected to compensation pocket 21 via compensation pocket channel 20. The number of compensation pockets 21 is equal to the number of compensation channels 20 connecting liquid distribution channels 19 with working chambers 25. Compensation pocket field 21 is at the height of working chamber 25. In front manifold 24 it has one inflow/outflow channel 18 connected to compensation pockets 21.

Claims (12)

  1. A hydraulic positive displacement machine with reverse kinematics consisting of a housing with a neck and a working mechanism comprising a planet set on the neck, a curvature with satellites placed between the planet and the curvature and it has bearings, a collector and channels, characterized in that it has rotating housing /1/ relative to neck /2/.
  2. According to Claim 1, the machine is characterized in that rotating housing /1/ is set rotationally respective to neck /2/.
  3. According to Claim 1 the machine is characterized in that rotating housing /1/ is set on bearings /9/ directly or indirectly through front manifold /24/ on neck /2/.
  4. According to Claim 3 the machine is characterized in that bearings /9/ are set on a part of neck /2/ or front manifold /24/ from the side and close to port /23/ fixing the positive displacement machine.
  5. According to Claim 1, the machine is characterized in that rotating housing /1/ has permanently embedded curvature /4/.
  6. According to Claim 1, the machine is characterized in that neck /2/ has at least one longitudinal channel /17/.
  7. According to Claim 6 the machine is characterized in that longitudinal channel /17/ is connected to at least one radial channel /19/ distributing liquid in manifold /6/ permanently circumferentially embedded on neck /2/.
  8. According to Claim 7 the machine is characterized in that manifold /6/ has adjustable dislocation along the axis of neck /2/ which is limited by nut /10/ with ring /11/ and lock pin /12/ and lock ring /13/.
  9. According to Claim 7 the machine is characterized in that radial channel /19/ which distributes liquid is connected to compensation pockets /21/ via compensation pocket channel /20/.
  10. According to Claim 9 the machine is characterized in that the number of compensation pockets /21/ is not greater than the number of compensation pocket channels /20/ connecting liquid distribution channels /19/ to working chambers /25/.
  11. According to Claim 10 distributing compensation pocket field /21/ is at the height of working chamber /25/.
  12. According to Claim 1 the machine is characterized in that in neck /2/ or in front manifold /24/ it has at least one inflow/outflow channel /18/ connected to compensation pockets /21/.
EP15003680.4A 2015-12-29 2015-12-29 Hydraulic positive displacement machine Withdrawn EP3187733A1 (en)

Priority Applications (1)

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EP15003680.4A EP3187733A1 (en) 2015-12-29 2015-12-29 Hydraulic positive displacement machine

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Application Number Priority Date Filing Date Title
EP15003680.4A EP3187733A1 (en) 2015-12-29 2015-12-29 Hydraulic positive displacement machine

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EP3187733A1 true EP3187733A1 (en) 2017-07-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019147148A1 (en) * 2018-01-24 2019-08-01 Politechnika Gdańska Satellite hydraulic motor
EP4191020A1 (en) * 2021-12-01 2023-06-07 Politechnika Gdanska Satellite pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123012A (en) * 1964-03-03 Hydraulic gear apparatus
PL218888A3 (en) 1979-10-10 1981-05-08 Kozielsk Fab Mas Kofam
US4484870A (en) * 1982-01-04 1984-11-27 Zaporozhsky Konstruktorskotekhnologichesky Institut Selskokhozyaistvennoc o Mashinostroenia Planetary hydraulic motor with irregularly arranged valving parts
EP1077522A1 (en) * 1999-08-10 2001-02-21 The Swatch Group Management Services AG Drive apparatus comprising a liquid-cooled electric motor and a planetary gear
PL185724B1 (en) 1997-07-31 2003-07-31 Bohdan Sieniawski Planetary cam type displacement machine with axial play taking up feature, in particular that used as a hydraulic motor of high specific absorbing capacity
PL381396A1 (en) 2006-12-27 2008-07-07 Czesław Bieliński Positive-displacement pump with fittingd for hydraulic drive
DE102008034391A1 (en) * 2008-07-23 2010-01-28 Spitznas Maschinenfabrik Gmbh Hydraulic drive for use in mining region, has pressure controlled axial clearance compensation mechanisms such as guide plate, pressure plate, housing cover, screw and ball, compensating clearance of drive shaft

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123012A (en) * 1964-03-03 Hydraulic gear apparatus
PL218888A3 (en) 1979-10-10 1981-05-08 Kozielsk Fab Mas Kofam
US4484870A (en) * 1982-01-04 1984-11-27 Zaporozhsky Konstruktorskotekhnologichesky Institut Selskokhozyaistvennoc o Mashinostroenia Planetary hydraulic motor with irregularly arranged valving parts
PL185724B1 (en) 1997-07-31 2003-07-31 Bohdan Sieniawski Planetary cam type displacement machine with axial play taking up feature, in particular that used as a hydraulic motor of high specific absorbing capacity
EP1077522A1 (en) * 1999-08-10 2001-02-21 The Swatch Group Management Services AG Drive apparatus comprising a liquid-cooled electric motor and a planetary gear
PL381396A1 (en) 2006-12-27 2008-07-07 Czesław Bieliński Positive-displacement pump with fittingd for hydraulic drive
DE102008034391A1 (en) * 2008-07-23 2010-01-28 Spitznas Maschinenfabrik Gmbh Hydraulic drive for use in mining region, has pressure controlled axial clearance compensation mechanisms such as guide plate, pressure plate, housing cover, screw and ball, compensating clearance of drive shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019147148A1 (en) * 2018-01-24 2019-08-01 Politechnika Gdańska Satellite hydraulic motor
EP4191020A1 (en) * 2021-12-01 2023-06-07 Politechnika Gdanska Satellite pump

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