EP3746637B1 - Moteur à palettes - Google Patents

Moteur à palettes Download PDF

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Publication number
EP3746637B1
EP3746637B1 EP19704559.4A EP19704559A EP3746637B1 EP 3746637 B1 EP3746637 B1 EP 3746637B1 EP 19704559 A EP19704559 A EP 19704559A EP 3746637 B1 EP3746637 B1 EP 3746637B1
Authority
EP
European Patent Office
Prior art keywords
lubricant
vane
vane motor
rotor body
lubricant reservoir
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.)
Active
Application number
EP19704559.4A
Other languages
German (de)
English (en)
Other versions
EP3746637A1 (fr
Inventor
Ewald Sawitzki
Simon Brose
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.)
J D Neuhaus Holding & Co KG GmbH
Original Assignee
J D Neuhaus Holding & Co KG GmbH
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 J D Neuhaus Holding & Co KG GmbH filed Critical J D Neuhaus Holding & Co KG GmbH
Priority to SI201930160T priority Critical patent/SI3746637T1/sl
Priority to PL19704559T priority patent/PL3746637T3/pl
Publication of EP3746637A1 publication Critical patent/EP3746637A1/fr
Application granted granted Critical
Publication of EP3746637B1 publication Critical patent/EP3746637B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F01C1/3441—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F01C1/3442—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
    • F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/04—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C18/3442—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the inlet and outlet opening
    • 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
    • F04C29/02—Lubrication; Lubricant separation
    • F04C29/023—Lubricant distribution through a hollow driving shaft
    • 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
    • F04C2210/00—Fluid
    • F04C2210/10—Fluid working
    • F04C2210/1005—Air
    • 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
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Definitions

  • the invention relates to a vane motor with a rotor body driven by compressed air with vane gaps for radially movable vanes and with a rotor shaft for rotatably mounting the rotor body with respect to a motor bushing.
  • the invention also relates to a method for lubricating such a vane motor.
  • Vane motors are known in various configurations from the prior art and are used for a wide variety of applications, for example as a pneumatic motor for a hoist.
  • a rotor body In such a vane motor, a rotor body is arranged eccentrically in a motor bushing. In the rotor body there are longitudinal slots, the lamella gaps, in which the lamellae are slidably arranged.
  • the operating fluid or gas supplied to the vane motor for example compressed air, is passed into chambers formed between the vanes. The compressed air then drives the motor so that the rotor body begins to rotate in the motor sleeve.
  • the lamellas can be pressed outwards by springs and with increasing speed under the effect of centrifugal force, so that they fit tightly against the motor socket and thus form the chambers.
  • vane motor During operation, the vane motor must be lubricated, in particular due to the frictional contact of the lamellas with the inner wall of the motor bushing.
  • vane motors For this purpose, several methods and corresponding designs of vane motors are known from the prior art.
  • a first method provides for adding oil or another lubricant to the operating fluid, in particular the operating compressed air, so that this oil is distributed throughout the vane motor and ensures continuous and uniform lubrication.
  • the operating compressed air is initially oil must be added and this must then either be subsequently removed or recovered or the used operating compressed air must be disposed of in such a way that the added oil that has remained in the operating compressed air does not get into the environment or the environment. Both of these have the consequence that operation is only possible with complex and expensive systems, the oil consumption and therefore also the operating costs are high and leakage of oil into the environment is unavoidable to a certain extent.
  • the pamphlet U.S. 3,084,677 A discloses a fluid-operated vane motor with a rotor rotatable within a housing, in the center of which a hollow axle is arranged.
  • the rotor is formed from at least four rotor segments, between which rotor gaps are arranged, each of which accommodates a longitudinally displaceable lamella.
  • the hollow axis is arranged eccentrically in the cylindrical housing.
  • the vane motor is operated by means of the steam supplied through a fluid inlet. In order to lubricate the lamellae and also to cool them at the same time, they are supplied with a lubricant from a lubricant source not shown in the figures.
  • the exemplary embodiment discloses that oil as a lubricant is supplied to the hollow axle through an inlet pipe and is distributed to the individual lamellar gaps by means of oil shafts in the interior of the rotor. The oil is then passed through the vane motor and discharged from the vane motor through an outlet pipe also located in the area of the hollow axle.
  • a pneumatic motor is already known in which a rotor driven by compressed air rotates in a cylindrical motor sleeve.
  • the Rotor are used to hold a lubricant and connecting tracks are provided for the transport of the lubricant from the cavities into the motor sleeve, the cavities are filled once with the assembly of the pneumatic motor with lubricant, which is for the entire service life or the period between two Maintenance is sufficient.
  • the pneumatic motor in particular under adverse operating conditions such as great heat and heavy load, has to be regularly and completely dismantled for maintenance, in which case the cavities can then be refilled with lubricant.
  • the vane motor according to the invention has a rotor body driven by an operating fluid, in particular compressed air, with lamella gaps for radially movable lamellae and a rotor shaft for the rotatable mounting of the rotor body relative to a motor bushing.
  • an operating fluid in particular compressed air
  • the rotor shaft is formed as a hollow shaft with a first lubricant reservoir inside, the first lubricant reservoir having a lubricant filler opening accessible from the outside of the vane motor and the first lubricant reservoir being arranged by means of at least one radial lubricant bore with at least one further, in a section of the rotor body between two lamellar gaps Lubricant reservoir and / or is connected to an outlet opening arranged in one of the lamellar gaps for supplying lubricant into the lamellar gap, the first lubricant reservoir being provided for receiving and storing lubricant and being formed in such a way that no continuous supply of lubricant takes place during operation of the lamellar motor .
  • the invention relates to a method for lubricating a vane motor, in particular a vane motor according to the invention, wherein first a lubricant press is connected to a lubricating nipple arranged on a rotor shaft of the vane motor and accessible from the outside of the vane motor, and then a lubricant is added to at least a first one arranged in the rotor shaft , a lubricant reservoir provided for receiving and storing lubricant and preferably also into further lubricant reservoirs connected to the first lubricant reservoir via radial lubricant bores in a rotor body of the vane motor.
  • the lubricant press is then detached from the lubricating nipple and the vane motor is put into operation, with the rotation of the rotor body and the rotor shaft dispensing the lubricant from the at least one lubricant reservoir through at least one outlet opening onto the surface of the rotor body and / or into a lamella gap of the rotor body, no continuous supply of lubricant taking place during the operation of the vane motor.
  • the design of the vane motor according to the invention and the method according to the invention enable the vane motor to be lubricated in a simple manner when it is ready for operation, i.e. the vane motor does not have to be dismantled for this purpose. On the one hand, this enables particularly long and low-wear operation and, on the other hand, ensures that downtimes due to the maintenance required to lubricate the engine components are reduced to a minimum. Furthermore, the invention enables the vane motor to be operated with oil-free compressed air and with a particularly low consumption of lubricant, as a result of which the operating costs are kept low and the environment is protected.
  • the vane motor is preferably an expansion motor, in particular a gas expansion motor. Furthermore, the vane motor is preferably provided for driving a hoist and in particular a chain of a hoist. In this case, however, the vane motor can not only be a pneumatic motor, but in principle also be operated by means of a liquid, that is to say hydraulically.
  • the rotor body When the vane motor is in operation, the rotor body rotates in a cylindrical motor bushing and is arranged eccentrically.
  • the rotor body is preferably rotated together with the rotor shaft and / or around the central longitudinal axis of the rotor shaft.
  • the rotor body has lamella gaps, a lamella being arranged in each lamella gap, which is displaced radially around the rotor shaft during rotation of the rotor body and / or slides on the motor bushing, thereby forming a closed chamber.
  • the rotor body and the rotor shaft can in principle be formed from any material and have any shape.
  • the rotor body is preferably arranged non-rotatably on the rotor shaft, and particularly preferably the rotor shaft and the rotor body are formed in one piece and / or are connected to one another in a materially bonded manner.
  • the rotor shaft is designed as a hollow shaft and has a lubricant reservoir inside for receiving a lubricant, in particular a lubricating grease.
  • the hollow shaft is hollow over at least part of its length, particularly preferably over its entire length, or has a recess which is provided for receiving a lubricant.
  • the lubricant reservoir is preferably formed rotationally symmetrical to the axis of rotation of the rotor shaft and / or has a central longitudinal axis which lies in the axis of rotation of the rotor shaft.
  • the first lubricant reservoir is very particularly preferably formed by a cylindrical bore arranged centrally within the rotor shaft.
  • the rotor shaft can initially have any diameter and the lubricant reservoir can have any volume.
  • the volume of the first and / or any further lubricant reservoir is preferably between 0.1 cm 3 and 500 cm 3 , particularly preferably between 0.5 cm 3 and 50 cm 3 and very particularly preferably between 1 cm 3 and 5 cm 3 .
  • Each further lubricant reservoir is also preferably cylindrical and particularly preferably formed by a cylindrical bore.
  • the vane motor has a lubricant filling opening which is accessible from the outside and through which lubricant can be filled at least into the first lubricant reservoir.
  • accessible from the outside means that the lubricant filler opening is accessible to a user must be achievable without having to dismantle essential components of the vane motor.
  • the lubricant filler opening is preferably arranged on the vane motor in such a way that it is located on a surface of the vane motor when it is ready for operation. In this case, however, in the case of a vane motor installed in a hoist, the lubricant filler opening can be covered and / or closed in order to prevent damage or contamination.
  • a removable cover is preferably arranged on a hoist in front of the lubricant filler opening.
  • the cover is also preferably removable in a simple manner, in particular latched and / or fixed in a detachable manner by means of a few screws.
  • a radial lubricant bore connects the first lubricant reservoir in the rotor shaft with at least one further lubricant reservoir in the rotor body.
  • the first lubricant reservoir is preferably connected to each further lubricant reservoir by means of precisely one radial lubricant bore.
  • a radial lubricant bore can initially be formed as desired and thereby have any desired cross-section.
  • the radial lubricant bore is preferably formed by a bore with a round cross section and / or a constant diameter.
  • a radial lubricant bore does not have to run exclusively in the radial direction in relation to the axis of rotation of the rotor body or to the rotor shaft, but can also contain only one radial component.
  • the lubricant bore can, for example, also run diagonally through the rotor body and / or the rotor shaft, at least in sections.
  • each lubricant bore has a straight course and very particularly preferably two lubricant bores each run along a common linear course on opposite sides of the axis of rotation of the rotor body. Furthermore, the central longitudinal axis of all lubricant bores preferably intersects the axis of rotation of the rotor body or the rotor shaft.
  • the outlet opening according to the invention of the lubricant reservoir into the lamella gap can initially be arranged as desired on or in the lamella gap and have any shape.
  • the outlet opening basically connects one Surface of the lamella gap with the interior of at least one lubricant reservoir.
  • the outlet opening is preferably formed by a round bore, which particularly preferably has a constant diameter along the entire length.
  • a central longitudinal axis of the outlet opening preferably runs at right angles to a surface of the lamella gap.
  • the outlet opening is particularly preferably arranged in a surface of the lamella gap facing the rotor shaft, in particular the bottom of the lamella gap in relation to the direction of movement of the lamella in the lamella gap.
  • a further lubricant reservoir is arranged in at least one section of the rotor body between two lamellar gaps, the further lubricant reservoir having at least one outlet opening for lubricant on a surface of the rotor body, whereby on the one hand the lubricant volume that can be accommodated and stored in the vane motor is more advantageous Way is increased and, on the other hand, a particularly good and comprehensive lubrication of the rotor body and the lamellae can be achieved.
  • Each of the further lubricant reservoirs preferably extends over the full length of the rotor body, in particular in the direction of the rotor shaft or the axis of rotation of the rotor body.
  • the further lubricant reservoir is likewise preferably arranged parallel to the first lubricant reservoir in the rotor shaft.
  • the further lubricant reservoir of the rotor body and in particular each further lubricant reservoir is preferably formed by a cylindrical bore and particularly preferably has the same diameter and / or the same internal volume as the first lubricant reservoir in the rotor shaft.
  • the at least one outlet opening from the further lubricant reservoir can initially be formed as desired.
  • the outlet opening is preferably formed by a bore which runs at least parallel to and particularly preferably along the central longitudinal axis of the further lubricant reservoir.
  • a further lubricant reservoir preferably has several, in particular two, outlet openings, the distance between the outlet openings and the axis of rotation of the rotor body or the rotor shaft being particularly preferably the same. Very particularly preferably, all outlet openings of further lubricant reservoirs each have the same distance from the Rotor shaft on.
  • An advantageous embodiment of the vane motor according to the invention provides that the outlet opening of the further lubricant reservoir is arranged on at least one end face of the rotor body and particularly preferably one outlet opening on each of the two end faces of the rotor body, in particular in the axial direction to the rotor shaft, whereby a This prevents lubricant from being thrown out during operation and at the same time ensures uniform lubrication of the vane motor.
  • the further lubricant reservoir preferably has no opening and in particular no outlet opening in the radial direction.
  • a production bore can be closed in any way, for example by arranging a plug or other component in the bore, by filling in a hardening substance, in particular an adhesive, or by welding.
  • the end face of the rotor body is understood to mean, in particular, the side of the rotor body in the axial direction of the axis of rotation.
  • the at least one and preferably all of the outlet openings of the further lubricant reservoir are closed with a sintered material or a membrane material through which the lubricant can pass, the sintered material or the membrane material advantageously, on the one hand, providing a slow and even release of lubricant or a diffusion of grease contained in the lubricant and, on the other hand, enables a pressure difference between the lubricant reservoir and the exterior of the rotor body or the inside of the motor, so that even with several outlet openings of a lubricant reservoir and in particular a system of several interconnected lubricant reservoirs, none Pressure short circuit occurs within the lubricant reservoir or reservoirs, which makes it difficult or even prevents the lubricant from escaping.
  • the sintered material can in principle be formed from any material, in particular metallic or ceramic, as long as it is suitable for allowing the lubricant or a component of the lubricant, for example an oil contained in the lubricating grease, to pass through.
  • a membrane can be used, which can also be formed from any metallic, inorganic or organic material, for example from plastic, whereby the membrane must also have permeability for the lubricant or a component thereof.
  • the sintered material or the membrane are preferably pressed into the outlet opening, fixed therein in a form-fitting manner or connected to it in a materially bonded manner.
  • the outlet opening provided with the sintered material or the membrane furthermore preferably has the same diameter as the respective lubricant reservoir.
  • the sintered material or the membrane particularly preferably extends over the entire cross section of the lubricant reservoir.
  • At least two further lubricant reservoirs are arranged in the rotor body opposite one another in relation to the rotor shaft or a rotation axis of the rotor body, whereby an unbalance of the rotor body can be avoided in a simple manner.
  • a further lubricant reservoir is particularly preferably arranged in each section of the rotor body between two lamellar gaps, and very particularly preferably each further lubricant reservoir in the rotor body has a further lubricant reservoir opposite in relation to the rotor shaft.
  • vane motor in which exactly a single radial lubricant bore is connected to a single outlet opening arranged in one of the vane gaps for supplying lubricant into the vane gap, whereby a pressure short circuit, in particular in the first lubricant reservoir, can be prevented in a simple manner.
  • a design can, however, have any number of further radial lubricant bores, which are connected to at least one, preferably in each case with a further lubricant reservoir.
  • the first lubricant reservoir extends over the entire length of the rotor shaft in the axial direction, the first lubricant reservoir being closed at one end, in particular by a closure or plug, and having the lubricant filler opening at the other end.
  • a lubricating nipple rotating with the rotor shaft for filling the lubricant reservoir or reservoirs is preferably arranged at the lubricant filler opening.
  • the grease nipple is arranged to be accessible from the outside of the vane motor.
  • the lubricating nipple is particularly preferably screwed into one end of the rotor shaft in the area of the first lubricant reservoir.
  • the lubricating nipple is also preferably arranged axially to the rotor shaft and / or runs precisely through the axis of rotation of the rotor shaft.
  • a particularly preferred embodiment of the vane motor is designed in such a way that the lubrication can be activated by compressed air, wherein the compressed air for operating the vane motor can be used to press lubricant out of at least one lubricant reservoir. It is particularly preferred that the amount of lubricant to be pressed out can be regulated via the applied pressure of the compressed air. Alternatively, a separate compressed air supply can also be provided for activating or regulating the lubrication.
  • One possibility of such a compressed air activation is to connect a compressed air inlet to at least one of the compressed air reservoirs in such a way that air can be pressed in and pressure can thereby be exerted on the lubricant contained in the lubricant reservoir.
  • At least one lubricant reservoir can have a disk or a corresponding piston which can be displaced along the length of the lubricant reservoir and which can be acted upon with compressed air from one side so that the other side can pass the pressure on to the lubricant located in the lubricant reservoir.
  • the lubrication can also be activated by compressed air, in which there is an external lubricant reservoir next to the hoist, which is connected to the lubricant filler opening, in particular via a hose to the lubricating nipple on the rotor shaft.
  • an external lubricant reservoir next to the hoist, which is connected to the lubricant filler opening, in particular via a hose to the lubricating nipple on the rotor shaft.
  • a lubricant in particular grease
  • the size of the external lubricant reservoir can be chosen at will.
  • the further lubricant reservoir is provided for receiving and storing lubricant, so that lubricant does not have to be continuously supplied during operation of the vane motor and preferably long-term operation, particularly preferably over more than 10 operating hours and very particularly preferred more than 100 operating hours without supplying a lubricant to one of the lubricant reservoirs.
  • the lubricant reservoir and particularly preferably the entire vane motor is formed in such a way that, in the operating state, there is no connection between the at least one lubricant reservoir and an external lubricant supply.
  • the vane motor is at the same time preferably designed in such a way that lubricant can be introduced into at least one of the lubricant reservoirs particularly easily and quickly during a break in operation.
  • a load on a chain K can be raised and lowered.
  • the hoist H has a vane motor 1 and other components behind a motor cover M.
  • the vane motor 1 has means for lubricating the motor components without the vane motor 1 having to be dismantled.
  • the vane motor 1 has a rotor body 2 that is rotatably arranged within a motor bushing 11. In order to enable the rotor body 2 to rotate, it is formed in one piece with a rotor shaft 4 which is arranged eccentrically in the cylindrical motor bushing 11. A bearing L is arranged at both ends of the rotor shaft 4 between the rotor shaft 4 and a motor housing or a part of the motor bushing 11. Furthermore, several lamellae are each guided in lamella gaps 3 of the rotor body 2 in such a way that they form a closed chamber between a surface 21 of the rotor body 2 and the motor sleeve 11, the volume of this chamber increasing when the rotor body 2 rotates due to the eccentric arrangement in the Motor socket 11 changed.
  • the rotor shaft 4 is formed as a hollow shaft which is closed on one side by means of a sealing plug 10.
  • the grease nipple 61 is arranged with a lubricant filler opening 6 (see FIG Fig. 2 ).
  • the volume in the interior of the rotor shaft 4 thus forms a first lubricant reservoir 5 for receiving and storing a lubricating grease.
  • the volume of the first lubricant reservoir 5 is 3590 mm 3 .
  • a radial bore is provided which opens into one of the lamella gaps 3 and serves as an outlet opening 8 for lubricant into the lamella gap 3 (see FIG Fig. 3 ).
  • the lubricant escaping into this vane gap 3 is quickly distributed, so that the lamellae in the other vane gaps 3 are also lubricated.
  • the latter In order to avoid a pressure short circuit within the lubricant reservoir 5, the latter has precisely one outlet opening 8 leading into a lamella gap 3.
  • a further lubricant reservoir 50 is arranged in each of two opposite sections 20 of the rotor body 2, which are each delimited by two successive lamellar gaps 3, the volumes of all lubricant reservoirs 5, 50 being approximately identical.
  • the volume of a further lubricant reservoir 50 be somewhat smaller and in particular be about 2700 mm 3 .
  • the two further lubricant reservoirs 50 are each connected to the first lubricant reservoir 5 in the rotor shaft 4 via a radial lubricant bore 7.
  • the lubricant bores 7 are formed as a single bore from the outside of the rotor body 2, so that one of the lubricant reservoirs 50 also has an auxiliary bore 7a, which is created when the lubricant bores 7 are drilled and is subsequently closed again with a plug (in Fig. 4 shown without stopper).
  • the two further lubricant reservoirs 50 are formed as cylindrical bores which are arranged parallel to the rotor shaft 4 and completely penetrate the rotor body 2.
  • each further lubricant reservoir 50 has an opening on each of the two end faces 22a, b of the rotor body 2.
  • a disk of sintered material 9 is arranged in a receiving area 9a at both ends of the further lubricant reservoir 50, the sintered material 9 on the one hand allowing a continuous passage of lubricant and on the other hand, a pressure difference can be maintained in the lubricant reservoir 50 with respect to the outside of the rotor body 2.
  • the lubricant escaping there first reaches an area of the vane motor 1 between the end face 22a, b of the rotor body 2 and the rotor bushing 11 and is then evenly distributed within the rotor bushing 11 during operation of the vane motor 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (12)

  1. Moteur à palettes (1) comprenant
    - un corps de rotor (2) entraîné par de l'air comprimé, avec des fentes de palettes (3) pour des palettes déplaçables radialement et
    - un arbre de rotor (4) pour le montage rotatif du corps de rotor (2) par rapport à une douille de moteur (11),
    caractérisé en ce que
    - l'arbre de rotor (4) est conçu comme un arbre creux avec un premier réservoir de lubrifiant (5) à l'intérieur, dans lequel
    - le premier réservoir de lubrifiant (5) présente un orifice de remplissage de lubrifiant (6) accessible depuis l'extérieur (À) du moteur à palettes (1) et dans lequel
    - le premier réservoir de lubrifiant (5) est relié au moyen d'au moins un perçage de lubrifiant radial (7) à un autre réservoir de lubrifiant (50) disposé dans une section (20) du corps de rotor (2) entre deux fentes de palettes (3) et/ou à un orifice de sortie (8) disposé dans l'une des fentes de palettes (3) pour l'alimentation en lubrifiant dans la fente de palette (3) et dans lequel le premier réservoir de lubrifiant (5) est prévu pour la réception et le stockage de lubrifiant et conçu de manière à n'a pas lieu une alimentation continue en lubrifiant pendant le fonctionnement du moteur à palettes (1).
  2. Moteur à palettes selon la revendication 1, caractérisé en ce que le premier réservoir de lubrifiant (5) est relié au moyen d'au moins un perçage de lubrifiant radial (7) à un autre réservoir de lubrifiant (50) disposé dans une section (20) du corps de rotor (2) entre deux fentes de palettes (3), dans lequel l'autre réservoir de lubrifiant (50) est prévu de préférence pour la réception et le stockage de lubrifiant et conçu de manière à n'a pas lieu une alimentation continue en lubrifiant pendant le fonctionnement du moteur à palettes (1).
  3. Moteur à palettes selon la revendication 1 ou 2, caractérisé en ce qu'un autre réservoir de lubrifiant (50) présentant au moins un orifice de sortie (8) pour du lubrifiant sur une surface (21) du corps de rotor (2) est disposé dans au moins une section (20) du corps de rotor (2) entre deux fentes de palettes (3).
  4. Moteur à palettes selon la revendication 2 ou 3, caractérisé en ce que l'orifice de sortie (8) de l'autre réservoir de lubrifiant (50) est disposé sur au moins un côté frontal (21), de préférence sur les deux côtés frontaux (21a, b) du corps de rotor (2).
  5. Moteur à palettes selon l'une des revendications précédentes 2 à 4, caractérisé en ce que tous les orifices de sortie (8) de l'autre réservoir de lubrifiant (50) sont fermés à l'aide d'un matériau fritté (9) ou d'un matériau de membrane, à travers lequel du lubrifiant peut se passer.
  6. Moteur à palettes selon l'une des revendications précédentes, caractérisé en ce qu'au moins deux réservoirs de lubrifiant (50a, b) sont disposés en vis-à-vis par rapport à l'arbre de rotor (4) dans le corps de rotor (2), dans lequel un réservoir de lubrifiant (50) est de préférence disposé dans chaque section (20) du corps de rotor (2) entre deux fentes de palettes (3).
  7. Moteur à palettes selon l'une des revendications précédentes, caractérisé en ce que l'un exactement des au moins un perçages de lubrifiant radiaux (7) est relié à un orifice de sortie (8) disposé dans l'une des fentes de palettes (3) pour l'alimentation en lubrifiant dans la fente de palette (3).
  8. Moteur à palettes selon l'une des revendications précédentes, caractérisé en ce que le premier réservoir de lubrifiant (5) s'étend sur toute la longueur de l'arbre de rotor (4), dans lequel le premier réservoir de lubrifiant (5) est fermé à une extrémité et présente l'orifice de remplissage de lubrifiant (6) à l'autre extrémité.
  9. Moteur à palettes selon l'une des revendications précédentes, caractérisé en ce que le premier réservoir de lubrifiant (5) est formé par un perçage cylindrique disposé de façon centrale dans l'arbre de rotor (4).
  10. Moteur à palettes selon l'une des revendications précédentes, caractérisé en ce qu'un embout à graisse (61) rotatif conjointement avec l'arbre de rotor (4) est disposé au niveau de l'orifice de remplissage de lubrifiant (6).
  11. Moteur à palettes selon l'une des revendications précédentes, caractérisé en ce que l'arbre de rotor (4) et le corps de rotor (2) sont conçus d'une seule pièce.
  12. Procédé de lubrification d'un moteur à palettes (1) selon l'une des revendications précédentes, comprenant les étapes suivantes :
    - raccordement d'une presse à lubrifiant à un embout à graisse (61) accessible depuis l'extérieur du moteur à palettes (1) et disposé sur un arbre de rotor (4) du moteur à palettes (1),
    - pressage de lubrifiant dans au moins un premier réservoir de lubrifiant (5) disposé dans l'arbre de rotor (4) et prévu pour la réception et le stockage de lubrifiant, et de préférence également dans d'autres réservoirs de lubrifiant (50) dans un corps de rotor (2) du moteur à palettes (1), reliés au premier réservoir de lubrifiant (5) respectivement par le biais d'un perçage de lubrifiant radial (7),
    - détachement de la presse à lubrifiant par rapport à l'embout à graisse (61), et
    - actionnement du moteur à palettes (1), le lubrifiant étant distribué sur la surface (21) du corps de rotor (2) et/ou dans une fente de palettes (3) du corps de rotor (2) par le biais d'au moins un orifice de sortie (8) à partir de l'au moins un réservoir de lubrifiant (5, 50) du fait de la rotation du corps de rotor (2) et de l'arbre de rotor (4), dans lequel
    - l'alimentation continue en lubrifiant n'a pas lieu pendant le fonctionnement du moteur à palettes (1).
EP19704559.4A 2018-02-02 2019-01-30 Moteur à palettes Active EP3746637B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201930160T SI3746637T1 (sl) 2018-02-02 2019-01-30 Lamelni motor
PL19704559T PL3746637T3 (pl) 2018-02-02 2019-01-30 Silnik lamelowy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018102393.6A DE102018102393A1 (de) 2018-02-02 2018-02-02 Lamellenmotor
PCT/EP2019/052251 WO2019149753A1 (fr) 2018-02-02 2019-01-30 Moteur à piston rotatif à palettes

Publications (2)

Publication Number Publication Date
EP3746637A1 EP3746637A1 (fr) 2020-12-09
EP3746637B1 true EP3746637B1 (fr) 2021-11-17

Family

ID=65365929

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19704559.4A Active EP3746637B1 (fr) 2018-02-02 2019-01-30 Moteur à palettes

Country Status (11)

Country Link
US (1) US11448071B2 (fr)
EP (1) EP3746637B1 (fr)
CN (1) CN111742113B (fr)
AU (1) AU2019216279B2 (fr)
CA (1) CA3089171A1 (fr)
DE (1) DE102018102393A1 (fr)
DK (1) DK3746637T3 (fr)
ES (1) ES2905170T3 (fr)
PL (1) PL3746637T3 (fr)
SI (1) SI3746637T1 (fr)
WO (1) WO2019149753A1 (fr)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125200A (en) * 1964-03-17 Pneumatic hoist
US1967034A (en) * 1930-05-19 1934-07-17 Lipman Patents Corp Motor compressor unit
FR1000099A (fr) * 1949-11-02 1952-02-07 Dispositif de lubrification automatique de moteurs pneumatiques à palettes
DE971505C (de) 1953-10-27 1959-02-05 Svenska Rotor Maskiner Ab Drehkolbenmaschine zur Kompression oder Expansion von Gasen
DE1706060U (de) 1954-02-05 1955-09-01 Hermann Wacker Vibrator mit umlaufenden unwuchten.
GB864580A (en) * 1959-08-20 1961-04-06 Dewandre Co Ltd C Improvements in or relating to rotary exhausters
US3084677A (en) * 1961-02-20 1963-04-09 Samuel S Mitchell Sliding vane type rotary steam engine
DE1538942A1 (de) 1966-08-25 1970-04-09 Allis Louis Co Wirbelstromkupplung
US3743453A (en) * 1971-07-08 1973-07-03 Borg Warner Compact rotary sliding vane compressor for an automotive air-conditioning system
US4231728A (en) * 1977-03-15 1980-11-04 Barmag Barmer Maschinenfabrik Aktiengesellschaft Rotary vane pump
US4144866A (en) * 1977-11-14 1979-03-20 Robert Hakner Internal combustion rotary engine
DE2967081D1 (en) * 1978-02-06 1984-08-09 Barmag Barmer Maschf Sliding vane pump
US4490100A (en) * 1981-12-29 1984-12-25 Diesel Kiki Co., Ltd. Rotary vane-type compressor with discharge passage in rotor
US5087180A (en) * 1990-04-19 1992-02-11 Ingersoll-Rand Company Fluid motor having reduced lubrication requirement
DE69901186T2 (de) 1998-07-17 2003-01-16 J D Neuhaus Gmbh & Co Kg Druckluftmotorschmierung
DE102009038132B4 (de) * 2009-08-12 2015-12-24 Joma-Polytec Gmbh Vakuumpumpe
CN107218082B (zh) * 2017-06-16 2019-05-03 盐城市东荣石油机械有限公司 一种具有润滑油路的叶片式气动马达

Also Published As

Publication number Publication date
AU2019216279B2 (en) 2024-05-02
DE102018102393A1 (de) 2019-08-08
CN111742113A (zh) 2020-10-02
US20210047929A1 (en) 2021-02-18
PL3746637T3 (pl) 2022-03-07
WO2019149753A1 (fr) 2019-08-08
SI3746637T1 (sl) 2022-04-29
AU2019216279A1 (en) 2020-09-24
CA3089171A1 (fr) 2019-08-08
DK3746637T3 (da) 2022-01-24
ES2905170T3 (es) 2022-04-07
EP3746637A1 (fr) 2020-12-09
US11448071B2 (en) 2022-09-20
CN111742113B (zh) 2022-08-16

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