SE469797B - Device for rapid positioning of a heavy trolley - Google Patents

Device for rapid positioning of a heavy trolley

Info

Publication number
SE469797B
SE469797B SE8802598A SE8802598A SE469797B SE 469797 B SE469797 B SE 469797B SE 8802598 A SE8802598 A SE 8802598A SE 8802598 A SE8802598 A SE 8802598A SE 469797 B SE469797 B SE 469797B
Authority
SE
Sweden
Prior art keywords
carriage
trolley
further member
gearwheel
attached
Prior art date
Application number
SE8802598A
Other languages
Swedish (sv)
Other versions
SE8802598D0 (en
SE8802598L (en
Inventor
L Stridsberg
Original Assignee
Mytronic Ab
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 Mytronic Ab filed Critical Mytronic Ab
Priority to SE8802598A priority Critical patent/SE469797B/en
Publication of SE8802598D0 publication Critical patent/SE8802598D0/en
Priority to AT89907843T priority patent/ATE86215T1/en
Priority to DE1989605189 priority patent/DE68905189T2/en
Priority to KR1019900700525A priority patent/KR0155348B1/en
Priority to JP1507299A priority patent/JP2726728B2/en
Priority to PCT/SE1989/000398 priority patent/WO1990000509A1/en
Priority to EP89907843A priority patent/EP0424430B1/en
Publication of SE8802598L publication Critical patent/SE8802598L/en
Priority to US07/927,790 priority patent/US5267478A/en
Publication of SE469797B publication Critical patent/SE469797B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B23Q7/1442—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices using carts carrying work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
    • B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G35/00—Mechanical conveyors not otherwise provided for
    • B65G35/06—Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

The invention relates to a device for rapid positioning of a heavy trolley 301. The trolley 301 is finely positioned by means of a fixed positioning rod, for example a gear rack 302, and an interacting rotary element, such as a gearwheel 305, which latter is driven by a motor fixed to the trolley 301. The trolley 301 is rapidly and crudely displaced by means of a further member, this further member being able to be constituted by one more gearwheel 401, which interacts with the gear rack 302 and is driven by a separate motor fixed to the trolley 301. This further member additionally supplies a certain force in the final positioning by means of the gearwheel 305, so that the play between the gearwheel 305 and the gear rack 303 is eliminated by pretensioning. Instead of a second gearwheel 401, a toothed belt or a pneumatic cylinder can be used. <IMAGE>

Description

469 797 2 Elasticiteten kan göras försumbar tack vare att motoraxeln och kugghjulet 305 är extremt mycket kraftigare och kortare än bandet 201. Kuggstângen 303 kan med mycket korta avstånd fästas i maskinens chassi (ej utritat för att ej skymma övriga element). Slirning kan inte förekomma. Tröghetsmomentet är känt och väsentligt mycket mindre än hos stora, långa kulskruvar. 469 797 2 The elasticity can be made negligible due to the fact that the motor shaft and gear 305 are extremely much stronger and shorter than the belt 201. The rack 303 can be attached to the machine chassis at very short distances (not drawn so as not to obscure other elements). Slipping cannot occur. The moment of inertia is known and significantly less than with large, long ball screws.

Problemet med denna metod är att glappet mellan kuggstâng och kugghjul inte kan elimineras annat än med dubbla, förspända kugghjul. För att fungera med de stora moment som krävs vid snabb positionering ger detta höga yttryck och snabb förslitning. Dessutom tillkommer motorns hela massa till vagnsvik- ten.The problem with this method is that the gap between the rack and the gears can only be eliminated with double, pre-tensioned gears. To work with the large torques required for fast positioning, this provides high surface pressure and fast wear. In addition, the entire mass of the engine is added to the car weight.

Problemen med ovan beskrivna, kända metoder och anordningar elimineras genom uppfinningen.The problems with known methods and devices described above are eliminated by the invention.

Uppfinningen baseras på en fast positioneringsstång och samverkande av en motor drivna roterande element fästa vid vagnen. Positioneringsstången kan i längdriktningen ha periodiskt återkommande fördjupningar och/eller upphöj- ningar och det samverkande roterande elementet har då en motsvarande utform- ning. I vissa fall kan dock en slät stång med samverkande hårt anpressade, vid vagnen roterbart fästa rullar användas. I föredragna utföringsformer är positioneringsstången en kuggstâng, t ex identisk med den i systemet enligt figur 3, alternativt en fast kulskruv med på vagnen monterad, roterande mut- ter. Kuggstången med tillhörande kugghjul erbjuder den för slutpositionering- en värdefulla stora styvheten och friheten från slirning och drift.The invention is based on a fixed positioning bar and cooperating motor-driven rotating elements attached to the carriage. The positioning rod can in the longitudinal direction have periodically recessed depressions and / or elevations and the cooperating rotating element then has a corresponding design. In some cases, however, a smooth bar with cooperating tightly pressed, rotatably attached rollers can be used. In preferred embodiments, the positioning rod is a rack, for example identical to that in the system according to Figure 3, or alternatively a fixed ball screw with a rotating nut mounted on the carriage. The rack with associated gears offers it for the final positioning - a valuable great rigidity and freedom from slipping and operation.

I uppfinningen används dock förutom ett kugghjul/kuggstâng 305/303 ytter- ligare minst ett organ för att tillföra vagnen 301 krafter i sidled. Detta organ har två uppgifter: - tillföra stora krafter för acceleration och retardation - tillföra viss kraft vid slutpositionering för att medelst förspänning eliminera glappet mellan kugghjulet 305 och stången 303.In the invention, however, in addition to a gear / rack 305/303, at least one further means is used for applying lateral forces to the carriage 301. This body has two functions: - to apply large forces for acceleration and deceleration - to apply some force at the final positioning in order to eliminate the play between the gear 305 and the rod 303 by means of prestress.

Kraven på detta extra organ är således mycket lägre än vid positione- ringssystem i allmänhet. Elasticitet är t ex oväsentligt. Kraven på mycket korta svarstider är mycket lägre.The requirements for this extra body are thus much lower than with positioning systems in general. Elasticity, for example, is insignificant. The requirements for very short response times are much lower.

Som exempel på sådana organ kan nämnas I - en tandrem som t ex 201 (kan vara relativt elastisk och därmed lätt samt ha måttlig förspänning och därmed måttlig friktion) vilken drivs av en motor, som är fastsatt vid t ex maskinens stativ, - ytterligare ett kugghjul som 305 med ytterligare en motor 304, - en pneumatisk cylinder, som har vandrande tätning och är fäst vid t ex maskinstativet, - en pneumatisk cylinder med vandrande tätning, 469 797 3 - en pneumatisk cyiinder med magnetisk koppiing genom cylinderväggen av krafter meïlan kolven och vagnen.Examples of such members are I - a timing belt which, for example, 201 (can be relatively elastic and thus light and have moderate prestress and thus moderate friction) which is driven by a motor, which is attached to, for example, the machine stand, gears as 305 with an additional motor 304, - a pneumatic cylinder, which has a traveling seal and is attached to eg the machine frame, - a pneumatic cylinder with a traveling seal, 469 797 3 - a pneumatic cylinder with magnetic coupling through the cylinder wall of forces between the piston and the cart.

I de bifogade ritningarna visar: fig. fig. fig. fig. fig. 1 ett konventioneiït skruvdrivet system med en stationär motor, 2 ett konventioneiit banddrivet system, 3 stationär kuggstång och vagnspiacerad motor, 4 ett utförande av uppfinningen, 5 hur två motorer ges skiida moment så att kugg-giappen försvinner.In the accompanying drawings: Fig. Fig. Fig. Fig. 1 shows a conventional screw driven system with a stationary motor, 2 a conventional belt driven system, 3 stationary rack and carriage spaced motor, 4 an embodiment of the invention, 5 how two motors are given separate the torque so that the gear gap disappears.

Ett utförande av uppfinningen framgår av figur 4. I uppfinningen används två kugghjul 305 och 401. Dessa två kugghjui kan ges av varandra åtminstone de1vis oberoende moment, t ex genom att drivas av två oberoende motorer. Vid snabb positionering från en position ti11 en annan komer först båda motorer- na att ge moment åt samma hå11 för att acceierera vagnen, och därefter ge moment åt samma, men motsatt hå11 för att bromsa vagnen. Hittiiïs har kugg- -giappet meiian stången 303 och kugghjuien 305/401 varit betydelseïöst.An embodiment of the invention is shown in Figure 4. In the invention, two gears 305 and 401 are used. These two gears can be given by each other at least partially independent torques, for example by being driven by two independent motors. When positioning quickly from one position to another, both motors will first give torque to the same wheel to accelerate the carriage, and then torque the same but opposite shaft to brake the carriage. Hittiiïs, the gear gap with the rod 303 and the gear hui 305/401 have been significant.

När vagnen komit nära måiet medför aiia giapp probiem; därför ges nu de båda motorerna skiïda moment så att (eniigt figur 5) kugg-giappen försvinner.When the wagon has come close to the seagull, aiia giapp brings probiem; therefore, the two motors are now given separate torque so that (according to Figure 5) the gear gap disappears.

När vagnen är nästan stiïia kan vagnen håiias “1åst" genom att båda hjuien 305 och 401 ges mindre moment men åt motsatt hå11.When the carriage is almost stiïia, the carriage can be "locked" by giving both wheels 305 and 401 less torque but on opposite sides11.

Claims (7)

469 797 Patentkrav469,797 Patent claims 1. Anordning för snabb positionering av en tung vagn (301), som är rörlig 0 längs en bana, k ä n n e t e c k n a d av att den innefattar en fast positioneringsstång (302, 303), ett med denna samverkande, av en motor (304) drivet roterande element (305), som är fäst vid vagnen (301), varvid positioneringsstången (302, 303) och detta roterande element (305) är avsedda för inställning av vagnen (301) i ett stationärt arbetsläge, ett ytterligare organ (401, 303) för förflyttning av vagnen, som är drivet av en separat motor, varvid detta ytterligare organ (401, 303) medverkar vid en snabb förflyttning av vagnen (301) fram till arbetsläget.Device for rapid positioning of a heavy carriage (301), which is movable along a path, characterized in that it comprises a fixed positioning rod (302, 303), co-operated with it, by a motor (304) rotating elements (305) attached to the carriage (301), the positioning rod (302, 303) and this rotating element (305) being intended for adjusting the carriage (301) in a stationary working position, a further member (401, 303 ) for moving the carriage, which is driven by a separate motor, this further means (401, 303) assisting in a rapid movement of the carriage (301) up to the working position. 2. Anordning enligt krav 1, k ä n n e t e c k n a d av att positione- ringsstången är en kuggstång (303) och de roterande elementet (305) är ett kugghjul.Device according to claim 1, characterized in that the positioning rod is a rack (303) and the rotating element (305) is a gear. 3. Anordning enligt krav 2, k ä n n e t e c k n a d av att det ytterligare organet (401) är ett kugghjul, som också samverkar med kuggstången (303) och är fäst vid vagnen (301).Device according to claim 2, characterized in that the further member (401) is a gear, which also cooperates with the rack (303) and is attached to the carriage (301). 4. Anordning enligt krav 1, k ä n n e t e c k n a d av att det ytterligare organet är en tandrem, som drivs av en motor, vilken är fastsatt t ex vid anordningens stativ.Device according to claim 1, characterized in that the further member is a toothed belt, which is driven by a motor, which is attached, for example, to the stand of the device. 5. Anordning enligt krav 1, k ä n n e t e c k n a d av att det ytterligare organet är en pneumatisk cylinder, som är fäst vid t ex anordningens stativ.Device according to claim 1, characterized in that the further member is a pneumatic cylinder, which is attached to, for example, the frame of the device. 6. Anordning enligt krav 1 eller 5, k ä n n e t e c k n a d av att det ytterligare organet är en pneumatisk cylinder med vandrande tätning.Device according to claim 1 or 5, characterized in that the further member is a pneumatic cylinder with a traveling seal. 7. Anordning enligt krav 1, k ä n n e t e c k n a d av att det ytterligare organet är en pneumatisk cylinder med magnetisk koppling genom cylinderväggen av krafter mellan kolven och vagnen (301).7. Device according to claim 1, characterized in that the further means is a pneumatic cylinder with magnetic coupling through the cylinder wall by forces between the piston and the carriage (301).
SE8802598A 1988-07-08 1988-07-08 Device for rapid positioning of a heavy trolley SE469797B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE8802598A SE469797B (en) 1988-07-08 1988-07-08 Device for rapid positioning of a heavy trolley
AT89907843T ATE86215T1 (en) 1988-07-08 1989-07-07 ARRANGEMENT FOR QUICK POSITIONING OF HEAVY LOADS.
DE1989605189 DE68905189T2 (en) 1988-07-08 1989-07-07 ARRANGEMENT FOR QUICK POSITIONING OF HEAVY LOADS.
KR1019900700525A KR0155348B1 (en) 1988-07-08 1989-07-07 Device for a rapid positioning of a heavy carriage
JP1507299A JP2726728B2 (en) 1988-07-08 1989-07-07 Equipment for high-speed positioning of heavy carriages
PCT/SE1989/000398 WO1990000509A1 (en) 1988-07-08 1989-07-07 A device for a rapid positioning of a heavy carriage
EP89907843A EP0424430B1 (en) 1988-07-08 1989-07-07 A device for a rapid positioning of a heavy carriage
US07/927,790 US5267478A (en) 1988-07-08 1992-08-10 Device for a rapid positioning of a heavy carriage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8802598A SE469797B (en) 1988-07-08 1988-07-08 Device for rapid positioning of a heavy trolley

Publications (3)

Publication Number Publication Date
SE8802598D0 SE8802598D0 (en) 1988-07-08
SE8802598L SE8802598L (en) 1990-01-09
SE469797B true SE469797B (en) 1993-09-13

Family

ID=20372886

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8802598A SE469797B (en) 1988-07-08 1988-07-08 Device for rapid positioning of a heavy trolley

Country Status (1)

Country Link
SE (1) SE469797B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4147938A1 (en) * 2021-09-13 2023-03-15 syskomp gehmeyr GmbH Device for moving unpowered transport trolleys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4147938A1 (en) * 2021-09-13 2023-03-15 syskomp gehmeyr GmbH Device for moving unpowered transport trolleys

Also Published As

Publication number Publication date
SE8802598D0 (en) 1988-07-08
SE8802598L (en) 1990-01-09

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