SE537481C2 - Pump device for a power take-off, power take-off for a take-off module, take-off module and a vehicle comprising a power take-off - Google Patents
Pump device for a power take-off, power take-off for a take-off module, take-off module and a vehicle comprising a power take-off Download PDFInfo
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- SE537481C2 SE537481C2 SE1351067A SE1351067A SE537481C2 SE 537481 C2 SE537481 C2 SE 537481C2 SE 1351067 A SE1351067 A SE 1351067A SE 1351067 A SE1351067 A SE 1351067A SE 537481 C2 SE537481 C2 SE 537481C2
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- pump device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
- F04C14/265—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face
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- 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
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/02—Auxiliary drives directly from an engine shaft
- B60K2025/026—Auxiliary drives directly from an engine shaft by a hydraulic transmission
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
- B60K2025/065—Auxiliary drives from the transmission power take-off the transmission being fluidic, e.g. hydraulic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/416—Cranes
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Sammandrag Uppfinningen avser en pumpanordning (22) for ett kraftuttag (16) hos ett fordon (1), innefattande ett fluidinlopp (32); ett fluidutlopp (34); en med fluidinloppet (32) och fluidutloppet (34) forbunden rotor (40), som är anordnad pa ett drivelement (20); en med rotorn (40) samverkande stator (42), som är anordnad i ett hus (18). Ett fOrskjutbart och omformningsbart omkopplingselement (54), som i ett forsta lage samverkar med rotorn (40) och statorn (42), sä att vasentligen inget fluidflode alstras av pumpanordningen (22), och i ett andra lage anligger mot statorn (42) och rotorn (40), sa att ett fluidflode alstras genom pumpanordningen (22). Uppfinningen avser ocksa ett kraftuttag (16) for en uttagsmodul (14), en uttagsmodul (14) och ett fordon (1), som innefattar ett kraftuttag (16). Summary The invention relates to a pump device (22) for a power take-off (16) of a vehicle (1), comprising a fluid inlet (32); a fluid outlet (34); a rotor (40) connected to the fluid inlet (32) and the fluid outlet (34), which is arranged on a drive element (20); a stator (42) cooperating with the rotor (40), which is arranged in a housing (18). A displaceable and reshapable switching element (54), which in a first layer cooperates with the rotor (40) and the stator (42), so that substantially no fluid flow is generated by the pump device (22), and in a second layer abuts against the stator (42) and the rotor (40), so that a fluid flow is generated through the pump device (22). The invention also relates to a power take-off (16) for a socket module (14), a socket module (14) and a vehicle (1), which comprises a power take-off (16).
Description
Pumpanordning for ett kraftuttag, kraftuttag for en uttagsmodul, uttagsmodul och ett fordon som innefattar ett kraftuttag. Pump device for a power take-off, power take-off for a socket module, socket module and a vehicle comprising a power take-off.
UPPFINNINGENS BAKGRUND OCH KAND TEKNIK Foreliggande uppfinning avser en pumpanordning for ett kraftuttag enligt ingressen till patentkravet 1, ett kraftuttag fOr en uttagsmodul enligt ingressen till patentkravet 8, en uttagsmodul enligt ingressen till patentkravet 11 och ett fordon, som innefattar ett kraftuttag enligt ingressen till patentkravet 13. BACKGROUND OF THE INVENTION AND PRIOR ART The present invention relates to a pump device for a power take-off according to the preamble of claim 1, a power take-off for a socket module according to the preamble of claim 8, an outlet module according to the preamble of claim 11 and a vehicle comprising a power take-off according to the preamble of claim 13. .
Det fOrekommer att lastbilar är utrustade med pabyggnader av olika slag. Dessa pabyggnader kan exempelvis utgoras av kranar och kompressorer. For att driva pabyggnaderna uttages kraft fran lastbilens drivlina med hjalp av ett eller flera kraftut- tag. En vanlig benamning pa dessa kraftuttag är PTO, som är en forkortning fran engelskans Power Take Off. Kraftuttagen kan anslutas till och monters pa i stort sett alla drivlinans komponenter, exempelvis pa motorn, pa vaxelladan eller mellan motorn och vaxelladan. For att driva en pabyggnad i form av en kran med hydraulcylindrar behovs trycksatt hydraulolja, varfor en uttagsmodul i form av en hydraulpump monteras i kraftuttaget. Om pabyggnaden är en kompressor monteras foretradesvis en uttagsmodul i form av en anslutningsflans i kraftuttaget till vilken anslutningsflans kompressorns ingaende axel kopplas. It happens that trucks are equipped with superstructures of various kinds. These superstructures can, for example, consist of cranes and compressors. To drive the superstructures, power is extracted from the truck's driveline with the help of one or more power take-offs. A common name for these power take-offs is PTO, which is an abbreviation of the English Power Take Off. The power take-offs can be connected to and mounted on virtually all components of the driveline, for example on the engine, on the gearbox or between the engine and the gearbox. In order to drive a superstructure in the form of a crane with hydraulic cylinders, pressurized hydraulic oil is needed, for which purpose a socket module in the form of a hydraulic pump is mounted in the power take-off. If the superstructure is a compressor, a socket module in the form of a connection flange in the power take-off is preferably mounted, to which the input shaft of the compressor flange of the compressor is connected.
Ett kraftuttag kan vara enkelt eller dubbelt och vara direkt eller vaxlade. De direkta kraftuttagen drivs direkt av fordonets drivlina och de vaxlade via en transmission for att vaxla upp varvtalet. De dubbla kraftuttagen innefattar en inbyggd transmission, som fordelar kraften till tva urtag for anslutning av uttagsmoduler. A power take-off can be single or double and be direct or shifted. The direct PTOs are driven directly by the vehicle's driveline and they shifted via a transmission to shift up the speed. The dual power take-offs include a built-in transmission, which distributes the power to two sockets for connecting socket modules.
Kraftuttagens och uttagsmodulernas rorliga komponenter är beroende av smOrjning for att fungera tillfredstallande. Olika typer av smorjsystem for kraftuttag och moduler finns. En typ av smorjsystem som forekommer är stanksmorjning dar smorjoljan, som är instangd i hus for respektive kraftuttag och uttagsmodul cirkuleras med hjalp av de i kraftuttaget och uttagsmodulen rorliga komponenterna. Vid stanksmorjning begransas smorjningseffekten av de rorliga komponenternas rotationshastighet, vilket med- 1 for att trycksmorda lager inte kan anvandas i kraftuttaget och uttagsmodulen. Vid en annan typ av forekommande smorjsystem anvands vaxelladans interna smorjsystem, varvid transmissionsolja trycksatts i vaxelladan och leds till kraftuttaget och uttagsmodulen. Nackdelen är dock att smOrjoljeflOdet och smorjoljetrycket minskar hos de komponenter som skall smorjas i vaxelladan, eftersom en del av flOdet och trycket fordelas till kraftuttaget och uttagsmodulen. The movable components of the power take-offs and take-out modules depend on lubrication to function satisfactorily. Different types of lubrication systems for power take-offs and modules are available. One type of lubrication system that occurs is stench lubrication where the lubricating oil, which is trapped in the housing for the respective power take-off and outlet module, is circulated with the aid of the components movable in the power take-off and the outlet module. In stench lubrication, the lubrication effect is limited by the rotational speed of the movable components, which means that pressure-lubricated bearings cannot be used in the power take-off and the take-out module. In another type of lubrication system, the internal lubrication system of the gearbox is used, whereby transmission oil is pressurized in the gearbox and is led to the power take-off and the outlet module. The disadvantage, however, is that the lubricating oil flow and lubricating oil pressure decrease in the components to be lubricated in the gearbox, since part of the flow and pressure is distributed to the power take-off and the take-out module.
Det finns kraftuttag som innehaller ett separat smorjsystem med en pumpanordning, som fOrser kraftuttaget och uttagsmodulen med smOrjoljeflOde och smOrjoljetryck. There are power take-offs that contain a separate lubrication system with a pump device, which supplies the power take-off and the outlet module with lubricating oil flow and lubricating oil pressure.
Dokumentet US5092736 visar en pumpanordning for ett kraftuttag, vilken pumpanordning är anordnad pa en drivaxel f6r kraftuttaget. En sadan separat pumpanordning for kraftuttaget och uttagsmodulen kraver fran drivaxeln overford energi, vilket medfor en okad bransleforbrukning hos ett fordon pa vilket kraftuttaget är monterat. The document US5092736 shows a pump device for a power take-off, which pump device is arranged on a drive shaft for the power take-off. Such a separate pump device for the power take-off and the take-out module requires overford energy from the drive shaft, which entails an increased fuel consumption of a vehicle on which the power take-off is mounted.
For det fall fordonet är forsett med ett sadant kraftuttag, men ingen uttagsmodul finns monterad pa kraftuttaget kommer bransle att forbrukas i onocian, eftersom pumpanordningen drivs och energi kravs for att punnpa smorjolja med pumpanordningen. In the event that the vehicle is equipped with such a power take-off, but no outlet module is mounted on the power take-off, fuel will be consumed in onocian, since the pump device is driven and energy is required to pump lubricating oil with the pump device.
SAMMANFATTNING AV UPPFINNINGEN Trots kanda losningar finns ett behov att vidareutveckla en pumpanordning for ett kraftuttag, som besparar bransle, som ej paverkar ordinarie oljesystem i en fordonsdrivlina, som mojliggor anvandningen av trycksmorda lager, och som medger forcerad oljekylning av kraftuttaget. SUMMARY OF THE INVENTION Despite known solutions, there is a need to further develop a pump device for a power take-off, which saves fuel, which does not affect ordinary oil systems in a vehicle driveline, which enables the use of pressure lubricated bearings, and which allows forced oil cooling of the PTO.
Syftet med fOreliggande uppfinning är saledes att tillhandahalla en pumpanordning for ett kraftuttag, som besparar bransle nar kraftuttaget inte anvands. The object of the present invention is thus to provide a pump device for a power take-off, which saves fuel when the power take-off is not used.
Ett ytterligare syfte med uppfinningen är att tillhandahalla en pumpanordning for ett kraftuttag, som ej paverkar ordinarie oljesystem i en fordonsdrivlina. A further object of the invention is to provide a pump device for a power take-off which does not affect ordinary oil systems in a vehicle driveline.
Annu ett syfte med uppfinningen är att tillhandahalla en pumpanordning for ett kraftuttag, som mojliggor anvandningen av trycksmorda lager i kraftuttaget och i en uttagsmodul, som är kopplad till kraftuttaget. 2 Annu ett syfte med uppfinningen är att tillhandahalla en pumpanordning for ett kraftuttag, som medger forcerad oljekylning av kraftuttaget. Another object of the invention is to provide a pump device for a power take-off, which enables the use of pressure-lubricated bearings in the power take-off and in a take-off module which is connected to the power take-off. Another object of the invention is to provide a pump device for a power take-off, which allows forced oil cooling of the power take-off.
Dessa syften uppnas med en pumpanordning for ett kraftuttag av det inledningsvis namnda slaget, vilken kannetecknas av de sardrag som anges i patentkravet 1. These objects are achieved with a pump device for a power take-off of the kind mentioned in the introduction, which can be characterized by the features stated in claim 1.
En sadan pumpanordning f6r ett kraftuttag kommer att bespara bransle, ej paverka ordinarie oljesystem i en fordonsdrivlina, mOjliggOra anvandningen av trycksmorda lager och medge forcerad oljekylning av kraftuttaget, eftersom oljan transporterar bort varme som utvecklas i kraftuttaget. Such a pumping device for a power take-off will save fuel, not affect ordinary oil systems in a vehicle driveline, allow the use of pressure-lubricated bearings and allow forced oil cooling of the power take-off, as the oil transports away heat generated in the power take-off.
Enligt en utforingsform är omkopplingselementet axiellt forskjutbart. Darmed kan omkopplingselementet enkelt omkopplas mellan det f6rsta och andra laget. According to one embodiment, the switching element is axially displaceable. This allows the switching element to be easily switched between the first and second layers.
Enligt en ytterligare utforingsform är omkopplingselementet en tallriksfjader, som i det forsta laget intager en kupad form och i det andra laget intager en vasentligen plan form. En tallriksfjader har en enkel konstruktion vars fornnforandring nnellan det forsta och andra laget utnyttjas. According to a further embodiment, the switching element is a disc spring, which in the first layer assumes a cupped shape and in the second layer assumes a substantially flat shape. A disc spring has a simple construction whose ancient change between the first and second layers is utilized.
Enligt annu en utforingsform är tallriksfjadern anordnad att -bras till det andra laget genom att overvinna tallriksfjaderns fjaderkraft. Tallriksfjaderns fjaderkraft kan genom materialval och form enkelt anpassas till det avsedda andarnalet. According to another embodiment, the disc spring is arranged to be broken to the second layer by overcoming the spring force of the disc spring. The spring force of the disc spring can easily be adapted to the intended breathing needle through the choice of material and shape.
Enligt annu en utforingsform bildar huset ett kraftuttag for en uttagsmodul. Husets form kan darmed anpassas fOr att samverka med formen hos uttagsmodulen. According to another embodiment, the housing forms a power take-off for a socket module. The shape of the housing can thus be adapted to cooperate with the shape of the socket module.
Enligt annu en utforingsform är drivelementet en tan en vaxellada utgaende axel. Genom att anordna kraftuttaget vid vaxelladan kan en i vaxelladan roterande kompo- nent anvandas for tillkoppling av en axel for drift av en pa kraftuttaget tillkopplad ut- tagsmodul. 3 Enligt annu en utforingsfornn innefattar drivelennentet en kopplingshylsa for anslutning av en kopplingsaxel hos en uttagsmodul. Kopplingshylsan kan enkelt utformas sa att den intager en till uttagsmodulen passande och samverkande form. According to another embodiment, the drive element is a gear shaft output shaft. By arranging the power take-off at the gearbox, a component rotating in the gearbox can be used for coupling a shaft for operation of a socket module connected to the power take-off. According to another embodiment, the drive element comprises a coupling sleeve for connecting a coupling shaft of a socket module. The coupling sleeve can easily be designed so that it assumes a shape fitting and cooperating with the socket module.
Ovan angivna syften uppnas aven med ett kraftuttag av det inledningsvis namnda slaget, vilket kannetecknas av de sardrag som anges i patentkravet 8. The objects stated above are also achieved with a power take-off of the kind mentioned in the introduction, which can be characterized by the features stated in claim 8.
Enligt en utforingsform innefattar huset axiellt riktade borrningar, som dels är utformade fOr att upptaga ett styrmedel fOr omkopplingselementet, dels fOr att bilda kana- ler for fluidflode. Genom att utforma huset med axiellt riktade borrningar kan styrme- del anordnade pa uttagsmodulen paverka omkopplingselementet, sa att det omkopplas mellan det f6rsta och andra laget. De borrningar som inte upptager ett styrmedel kommer att fungera som inlopp och utlopp for fluid mellan kraftuttaget och uttagsmodulen. According to one embodiment, the housing comprises axially directed bores, which are partly designed to receive a control means for the switching element, and partly to form channels for fluid flow. By designing the housing with axially directed bores, control means arranged on the socket module can influence the switching element, so that it is switched between the first and second layers. The bores that do not receive a guide means will act as an inlet and outlet for fluid between the power take-off and the take-out module.
Enligt en ytterligare utf6ringsform innefattar drivelementet en kopplingshylsa for anslutning av en kopplingsaxel hos uttagsmodulen. Darmed kan kopplingshylsan enkelt utformas sa att den intager en till uttagsmodulen passande och sannverkande form. According to a further embodiment, the drive element comprises a coupling sleeve for connecting a coupling shaft of the socket module. Thus, the coupling sleeve can easily be designed so that it assumes a shape fitting and authenticating to the socket module.
Ovan angivna syften uppnas aven med en uttagsmodul av det inledningsvis namnda slaget, vilket kannetecknas av de sardrag som anges i patentkravet 11. The above objects are also achieved with a socket module of the kind mentioned in the introduction, which can be characterized by the features stated in claim 11.
Enligt en utf6ringsform är styrelementet en tapp, som utbreder sig vasentligen parallellt med en kopplingsaxel has kraftuttaget. Darmed kan omkopplingselementet en- kelt omkopplas mellan det forsta och andra laget nar uttagsmodulen borttages Than respektive monteras pa kraftuttaget. According to one embodiment, the guide element is a pin which extends substantially parallel to a coupling shaft having the power take-off. This allows the switching element to be easily switched between the first and second layers when the socket module is removed or mounted on the power take-off.
Ovan angivna syften uppnas aven med ett fordon av det inledningsvis namnda slaget, vilket kannetecknas av de sardrag som anges i patentkravet 13. The above objects are also achieved with a vehicle of the kind mentioned in the introduction, which can be characterized by the features stated in claim 13.
Ytterligare fordelar med uppfinningen framgar av foljande detaljerade beskrivning. 4 KORT BESKRIVNING AV RITNINGARNA I det foljande beskrivs, sasom ett exempel, foredragna utforingsformer av uppfin- ningen med hanvisning till bifogade ritningar, pa vilka: Fig. 1 visar i en sidovy ett schematiskt visat fordon med en pumpanordning fOr ett kraftuttag enligt foreliggande uppfinning, Fig. 2 visar en tvarsnittsvy av ett schematiskt visat kraftuttag med pumpanordningen enligt foreliggande uppfinning, Fig. 3 visar en planvy kraftuttaget enligt foreliggande uppfinning, Fig. 4 visar en tvarsnittsvy utmed linjen I —Ii fig. 2, och Fig. 5 visar en tvarsnittsvy av ett schematiskt visat kraftuttag med pumpanordningen enligt fOreliggande uppfinning med en tillkopplad uttagsnnodul. Further advantages of the invention will become apparent from the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS In the following, as an example, preferred embodiments of the invention are described with reference to the accompanying drawings, in which: Fig. 1 shows in a side view a schematically shown vehicle with a pump device for a power take-off according to the present invention, Fig. 2 shows a cross-sectional view of a schematically shown power take-off with the pump device according to the present invention, Fig. 3 shows a plan view of the power take-off according to the present invention, Fig. 4 shows a cross-sectional view along the line I -I in Fig. 2, and Fig. 5 shows a cross-sectional view of a schematically shown power take-off with the pump device according to the present invention with a connected take-off nodule.
DETALJERAD BESKRIVNING AV EN FOREDRAGEN UTFORINGSFORM AV UPPFINNINGEN Fig. 1 visar en schematisk sidovy av ett fordon 1, som innefattar en drivlina 2 med en fOrbranningsmotor 4, som är kopplad till en vaxellada 6. Vaxelladan 6 är vidare kopp- lad till fordonets 1 drivhjul 8. Fordonet 1 är forsett med en kran 10 hos vilken en hyd- raulcylinder 12 är anordnad. En uttagsmodul 14 i form av en hydraulpump är anordnad for att driva hydraulcylindern 12 och darmed kranen 10. Hydraulpumpen 14 är kopplad till ett kraftuttag 16, som är anordnat vid fordonets 1 drivlina 2. Hydraulpumpen 14 är kopplad till hydraulcylindern 12 via hydraulledningar. Kraftuttaget 16 inne- fattar en pumpanordning 22 enligt foreliggande uppfinning. DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION Fig. 1 shows a schematic side view of a vehicle 1, which comprises a driveline 2 with an internal combustion engine 4, which is connected to a gearbox 6. The gearbox 6 is further coupled to the drive wheel 8 of the vehicle 1. The vehicle 1 is provided with a crane 10 in which a hydraulic cylinder 12 is arranged. An outlet module 14 in the form of a hydraulic pump is arranged to drive the hydraulic cylinder 12 and thus the crane 10. The hydraulic pump 14 is connected to a power take-off 16, which is arranged at the driveline 2 of the vehicle 1. The hydraulic pump 14 is connected to the hydraulic cylinder 12 via hydraulic lines. The power take-off 16 comprises a pump device 22 according to the present invention.
Fig. 2 visar en schematisk snittvy av ett kraftuttag 16 enligt foreliggande uppfinning. Kraftuttaget 16 innefattar ett hus 18, som atminstone delvis inrymmer ett drivelement 20 i form av en -Iran drivlinan 2 utgaende axel 20, en kopplingshylsa 24, som ar for- bunden med den utgaende axeln 20 och ett forsta lager 26, som lagrar kopplingshylsan 24 i huset 18. Huset 18 är sa ufformat att det bildar ett uttag for uttagsmodulen 14. Kraftuttaget 16 innefattar ocksa pumpanordningen 22, som drivs av den utgaende axeln 20. Den utgaende axeln 20 är avsedd att kopplas till fordonets 1 drivlina 2 (fig. 1), sa att drivlinan 2 driver och bringar pumpanordningen 22 att pumpa fluid, ex- empelvis transmissionsolja fran vaxelladan 6. For det fall kraftuttaget 16 är anordnat vid fordonets 1 vaxellada 6 kopplas den utgaende axeln 20 till en hos vaxelladan 6 roterbar axel (inte visad). Den utgaende axeln 20 är lagrad i vaxelladan 6 medelst ett andra lager 28. Kopplingshylsan 24 innefattar medel, exempelvis ett splinesfOrband 30 f6r sammankoppling med den utgaende axeln 20 och f6r anslutning av uttagsmodulen 14. Fig. 2 shows a schematic sectional view of a power take-off 16 according to the present invention. The power take-off 16 comprises a housing 18, which at least partially houses a drive element 20 in the form of a shaft 20 projecting from the drive line 2, a coupling sleeve 24, which is connected to the output shaft 20 and a first bearing 26, which stores the coupling sleeve 24. in the housing 18. The housing 18 is shaped so as to form an outlet for the outlet module 14. The power outlet 16 also comprises the pump device 22, which is driven by the output shaft 20. The output shaft 20 is intended to be connected to the driveline 2 of the vehicle 1 (Fig. 1 ), so that the driveline 2 drives and causes the pump device 22 to pump fluid, for example transmission oil from the gearbox 6. In the event that the power take-off 16 is arranged at the gearbox 6 of the vehicle 1, the output shaft 20 is coupled to a shaft rotatable (not shown) ). The output shaft 20 is mounted in the gearbox 6 by means of a second bearing 28. The coupling sleeve 24 comprises means, for example a spline connection 30 for coupling to the output shaft 20 and for connecting the socket module 14.
Pumpanordningen 22 innefattar ett fluidinlopp 32 och ett fluidutlopp 34. Till fluidinloppet 32 är en slang eller rorledning 36 ansluten, som leder transmissionsolja Than vax- elladan 6. Ett lock 39 anligger mot en sida av pumpanordningen 22 genom vilket slangen eller rorledningen 36 stracker sig och är forbunden. Foretradesvis är kraftuttaget 16 forbundet med vaxelladan 6 medelst fastbultar 38. Hos pumpanordningen 22 är fluidinloppet 32 och fluidutloppet 34 forbundna med en rotor 40, sonn är anordnad pa kopplingshylsan 24. Det är ocksa mojligt att anordna rotorn 40 direkt pa den utgaende axeln 20. Pumpanordningen 22 innefattar aven en med rotorn 40 samverkande stator 42, som är sa anordnad i huset 18 att den inte är roterbar. Foretradesvis är pumpanordningen 22 utformad som en crescentpump, vilket medfor att den innefattar en medbringare 44, som drivs av rotorn 40. Rotorn 40 innefattar perifert anordnade tander 46, som är riktade radiellt utat och som vid rotation av rotorn 40 samver- kar med radiellt mat riktade tander 48 has medbringaren 44. Statom 42 uppvisar en i fOrhallande till rotorns 40 centrumaxel 50 excentrisk Oppning 52, som inrymmer medbringaren 44. Darmed kommer medbringaren 44 att rotera excentriskt kring rotorn 40, vilket skapar en pumpeffekt nar tanderna hos rotorn 40 och medbringaren 44 samverkar med varandra. Den excentriska placeringen av medbringaren 44 bildar ocksa pumpanordningens 22 fluidinlopp 32 och fluidutlopp 34. The pump device 22 comprises a fluid inlet 32 and a fluid outlet 34. To the fluid inlet 32 is connected a hose or pipe 36, which leads the transmission oil Than the gearbox 6. A lid 39 abuts against one side of the pump device 22 through which the hose or pipe 36 extends and is connected. Preferably, the power take-off 16 is connected to the gearbox 6 by means of fixed bolts 38. In the pump device 22 the fluid inlet 32 and the fluid outlet 34 are connected to a rotor 40, which is arranged on the coupling sleeve 24. It is also possible to arrange the rotor 40 directly on the output shaft 20. 22 also includes a stator 42 cooperating with the rotor 40, which is arranged in the housing 18 so that it is not rotatable. Preferably, the pump device 22 is formed as a crescent pump, which means that it comprises a driver 44, which is driven by the rotor 40. The rotor 40 comprises circumferentially arranged teeth 46, which are directed radially outwards and which upon rotation of the rotor 40 cooperate with radial food. directional teeth 48 have the driver 44. The stator 42 has an eccentric opening 52 in relation to the center axis 50 of the rotor 40, which houses the driver 44. Thus, the driver 44 will rotate eccentrically about the rotor 40, which creates a pumping effect when the teeth of the rotor 40 and the driver 44 interact with each other. The eccentric location of the driver 44 also forms the fluid inlet 32 and fluid outlet 34 of the pump device 22.
Pumpanordningen 22 innefattar ocksa ett axiellt forskjutbart och omformningsbart omkopplingselement 54, som i ett forsta lage samverkar med rotorn 40 och statorn 42, sa att vasentligen inget fluidflode alstras av pumpanordningen 22, och i ett andra 6 lage anligger mot statorn 42 och rotorn 40, sa att ett fluidflode alstras genonn pumpanordningen 22. Foretradesvis är omkopplingselementet 54 är en tallriksfjader, som i det forsta laget intager en kupad form och i det andra laget intager en vasentligen plan form. I figur 2 visas hur omkopplingselementet 54 är placerat i det f6rsta laget da inget fluidflOde eller fluidtryck kommer att byggas upp av pumpanordningen 22. The pump device 22 also comprises an axially displaceable and reshapable switching element 54, which in a first layer cooperates with the rotor 40 and the stator 42, so that substantially no fluid flow is generated by the pump device 22, and in a second layer abuts the stator 42 and the rotor 40, so that a fluid flow is generated through the pump device 22. Preferably, the switching element 54 is a disc spring, which in the first layer assumes a cupped shape and in the second layer assumes a substantially flat shape. Figure 2 shows how the switching element 54 is placed in the first layer as no fluid flow or fluid pressure will be built up by the pump device 22.
Anledningen till att inget flode och tryck byggs upp i det f6rsta laget är att rotorns 40 och med bringarens 44 samverkande tander 46, 48 inte kan skapa en definierad volym nar den sida av pumpanordningen 22 som vetter mot omkopplingselementet 54 är Open. De hos rotorn 40 och medbringaren 44 samverkande tanderna 46, 48 kommer darmed att ram sig i den volym av transmissionsolja som finns vid pumpanordningen 22 utan att alstra ett flode eller tryck genom fluidutloppet 34. Darmed kravs ingen energi i form av pumparbete hos pumpanordningen 22, vilket i sin tur medf6r att det kravs mycket lite overlord energi fran den utgaende axeln 20. Detta resulterar i en minskad bransleforbrukning hos fordonet 1 nar ingen uttagsmodul 14 finns mon- terad pa kraftuttaget 16. The reason why no flow and pressure builds up in the first layer is that the teeth 46, 48 of the rotor 40 and with the bringer 44 cannot create a defined volume when the side of the pump device 22 facing the switching element 54 is Open. The teeth 46, 48 cooperating with the rotor 40 and the carrier 44 will thus be caught in the volume of transmission oil present at the pump device 22 without generating a flow or pressure through the fluid outlet 34. Thus no energy in the form of pumping work of the pump device 22 is required. which in turn means that very little excess energy is required from the output shaft 20. This results in a reduced fuel consumption of the vehicle 1 when no outlet module 14 is mounted on the power take-off 16.
Huset 18 innefattar axiellt riktade borrningar 56, som bildar kanaler for fluidflode bade till och Than den uttagsmodul 14, som är avsedd att kopplas till kraftuttaget 16. Borrningar 56 är ocksa utformade for att upptaga ett styrelement 58 (se figur 5) for om- kopplingselementet 54, vilket skall fOrklaras narmare nedan. Borrningarna 56 har for- bindelse med i huset 18 utformade spar 60. The housing 18 includes axially directed bores 56 which form channels for fluid flow both to and from the outlet module 14 which is intended to be connected to the power take-off 16. Bores 56 are also designed to receive a guide element 58 (see Figure 5) for the switching element 54, which will be explained in more detail below. The bores 56 are connected to grooves 60 formed in the housing 18.
Fig. 3 visar en planvy av kraftuttaget 16. Det framgar hur ett flertal borrningar 56 är anordnade i husets 18 omkretsriktning. I figuren visas fyra borrningar 56, men fare eller fler an fyra borrningar 56 kan anordnas i huset 18. Foretradesvis forses den Than vaxelladan 6 (fig. 2) vanda anden av huset 18 med en fastflans (inte visad) fOr att fastsatta uttagsmodulen 14 (fig. 1). Fig. 3 shows a plan view of the power take-off 16. It can be seen how a plurality of bores 56 are arranged in the circumferential direction of the housing 18. The figure shows four bores 56, but danger or more than four bores 56 can be arranged in the housing 18. Preferably, the Than gearbox 6 (Fig. 2) is provided with the spirit of the housing 18 with a fixed flange (not shown) to secure the socket module 14 ( Fig. 1).
Fig. 4 visar en tvarsnittsvy utmed linjen I —I i fig. 2. Det framgar att pumpanordningen 22 innefattar en rotor 40, en stator 42 och en medbringare 44 och att pumpanordningen 22 är uppbyggd som en crescentpump. Det skall i detta sammanhang namnas att pumpanordningen 22 skulle kunna innefatta en annan typ av pump, exempelvis en gerotor eller en kugghjulspump. 7 Fig. 5 avser en tvarsnittsvy av kraftuttaget 16 med en tillkopplad uttagsmodul 14. Uttagsmodulen 14 innefattar en kopplingsaxel 66, som är ansluten till kopplingshylsan 24 medelst splinesfOrbandet 30. Uttagsmodulen 14 innefattar ett styrelement 58 for omkopplingselementet 54. Styrmed let 58 är foretradesvis en tapp 58, som utbreder sig vasentligen parallellt med uttagsmodulens 14 kopplingsaxel. Nar uttagsmodulen 14 anbringas pa kraftuttaget 16 infOrs en eller flera tappar 58 i borrningarna 56. Tapparna 58 kommer da att komma i kontakt med och axiellt fOrskjuta en ring 62, som anligger mot tallriksfjadern 54. Ringen 62 har en sadan form att den delvis stracker sig in i sparen 60 inuti huset 18, vilka spar 60 samverkar med borrningarna 56. Nar ringen 62 forskjuts axiellt kommer tallriksfjadern 54 att pressas mot pumpanordning- ens 22 sida och omformas, sa att tallriksfjadern 54 intager en vasentligen plan form. Tallriksfjadern 54 fors saledes till det andra laget genom att tallriksfjaderns 54 fjaderkraft overvinns. Darmed kommer tallriksfjadern 54 att anligga tatande mot pumpanordningens 22 ena sida, vilket medfor att ett flode och tryck hos transmissionsoljan kan bildas. Transmissionsolja sugs da upp fran vaxelladan 6 av pumpanordningen 22 genom slangen eller ledningen 36 och vidare genom pumpanordningens fluidinlopp 32. Darefter trycks transmissionsoljan ut genom pumpanordningens 22 fluidutlopp 34 och fOrs vidare genom en mellan tallriksfjadern 54 och kopplingshylsan 24 bildad oppning samt en mellan ringen och kopplingshylsan 24 bildad oppning. Slutligen fors transmissionsoljan vidare till sparen 60 och borrningarna 56 i huset 18 och in i ut- tagsmodulen 14. Transmissionsoljans flodesvag visas med pilar p i fig. 5. Ringen 62 och locket 39 halls pa plats i av en respektive sparring 64, sa att locket 39 blir fixerat i axiell riktning och ringens 62 axiella fOrskjutning begransas. Pumpanordningens 22 konstruktion samt sparringarnas 64, ringens 62 och lockets 39 samverkan med pumpanordningen 22 gar att den blir mycket latt att montera i huset 18 och aven en- kel att demontera vid underhall eller vid utbyte. Fig. 4 shows a cross-sectional view along the line I-I in Fig. 2. It can be seen that the pump device 22 comprises a rotor 40, a stator 42 and a driver 44 and that the pump device 22 is constructed as a crescent pump. It should be mentioned in this context that the pump device 22 could comprise another type of pump, for example a gerotor or a gear pump. Fig. 5 relates to a cross-sectional view of the power take-off 16 with a coupled-in socket module 14. The socket module 14 comprises a coupling shaft 66, which is connected to the coupling sleeve 24 by means of the spline connection 30. The socket module 14 comprises a control element 58 for the switching element 54. 58, which extends substantially parallel to the coupling axis of the socket module 14. When the socket module 14 is mounted on the power take-off 16, one or more pins 58 are inserted in the bores 56. The pins 58 will then come into contact with and axially displace a ring 62, which abuts against the disc spring 54. The ring 62 has such a shape that it partially extends into the recesses 60 inside the housing 18, which recesses 60 cooperate with the bores 56. When the ring 62 is displaced axially, the disc spring 54 will be pressed against the side of the pump device 22 and reshaped so that the disc spring 54 assumes a substantially planar shape. The disc spring 54 is thus forced to the second layer by overcoming the spring force of the disc spring 54. Thereby, the disc spring 54 will abut against one side of the pump device 22, which means that a flow and pressure of the transmission oil can be formed. Transmission oil is then sucked up from the gearbox 6 by the pump device 22 through the hose or line 36 and further through the pump inlet fluid inlet 32. Thereafter, the transmission oil is forced out through the fluid outlet 34 of the pump device 22 and passed through an opening formed between the disc spring 54 and the coupling sleeve 24 and a ring between the ring and the coupling sleeve. 24 formed opening. Finally, the transmission oil is passed on to the recess 60 and the bores 56 in the housing 18 and into the outlet module 14. The transmittance of the transmission oil is shown by arrows in Fig. 5. The ring 62 and the lid 39 are held in place by a respective sparring 64, so that the lid 39 becomes fixed in the axial direction and the axial displacement of the ring 62 is limited. The construction of the pump device 22 and the interaction of the spar rings 64, the ring 62 and the lid 39 with the pump device 22 means that it becomes very easy to mount in the housing 18 and also easy to disassemble during maintenance or replacement.
Angivna komponenter och sard rag som anges ovan kan inom ramen for uppfinningen kombineras mellan olika angivna utfOringsformer. 8 The stated components and sard rags stated above can be combined within the scope of the invention between different specified embodiments. 8
Claims (13)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1351067A SE537481C2 (en) | 2013-09-18 | 2013-09-18 | Pump device for a power take-off, power take-off for a take-off module, take-off module and a vehicle comprising a power take-off |
| PCT/SE2014/051046 WO2015041587A1 (en) | 2013-09-18 | 2014-09-11 | Pump unit for a power take-off, power take-off for a take-off module, take-off unit and a vehicle including a power take-off |
| DE112014003790.7T DE112014003790B4 (en) | 2013-09-18 | 2014-09-11 | Pump unit for a PTO, PTO for a PTO module and a vehicle with a PTO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1351067A SE537481C2 (en) | 2013-09-18 | 2013-09-18 | Pump device for a power take-off, power take-off for a take-off module, take-off module and a vehicle comprising a power take-off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1351067A1 SE1351067A1 (en) | 2015-03-19 |
| SE537481C2 true SE537481C2 (en) | 2015-05-12 |
Family
ID=52689150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1351067A SE537481C2 (en) | 2013-09-18 | 2013-09-18 | Pump device for a power take-off, power take-off for a take-off module, take-off module and a vehicle comprising a power take-off |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE112014003790B4 (en) |
| SE (1) | SE537481C2 (en) |
| WO (1) | WO2015041587A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351505A (en) * | 2015-11-19 | 2016-02-24 | 陕西法士特汽车传动集团有限责任公司 | Transmission lubricating system with through shaft power takeoff |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| YU177488A (en) * | 1987-11-17 | 1990-12-31 | Zahnradfabrik Friedrichshafen | Placing of a pump in an transporter |
| US5228355A (en) * | 1991-11-15 | 1993-07-20 | Dana Corporation | Pto unit for a transmission or the like including a lubrication system operable only when the pto is in operation |
| JP2000161248A (en) | 1998-12-01 | 2000-06-13 | Kayaba Ind Co Ltd | Hydraulic pump device |
| DE10025723A1 (en) | 2000-05-25 | 2001-11-29 | Gkn Sinter Metals Gmbh | Regulated pump |
| GB2417049B (en) | 2004-08-10 | 2009-07-01 | Gilbert Gilkes & Gordon Ltd | Improvements in or relating to self-priming pumps |
| US9097328B2 (en) * | 2010-06-24 | 2015-08-04 | Volvo Lastvagnar Ab | Transmission with a main gearbox and a power take off unit |
-
2013
- 2013-09-18 SE SE1351067A patent/SE537481C2/en not_active IP Right Cessation
-
2014
- 2014-09-11 DE DE112014003790.7T patent/DE112014003790B4/en not_active Expired - Fee Related
- 2014-09-11 WO PCT/SE2014/051046 patent/WO2015041587A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014003790T5 (en) | 2016-05-19 |
| WO2015041587A1 (en) | 2015-03-26 |
| DE112014003790B4 (en) | 2019-02-07 |
| SE1351067A1 (en) | 2015-03-19 |
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