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WO1991010043A1 - Power source unit - Google Patents

Power source unit Download PDF

Info

Publication number
WO1991010043A1
WO1991010043A1 PCT/FI1990/000309 FI9000309W WO9110043A1 WO 1991010043 A1 WO1991010043 A1 WO 1991010043A1 FI 9000309 W FI9000309 W FI 9000309W WO 9110043 A1 WO9110043 A1 WO 9110043A1
Authority
WO
WIPO (PCT)
Prior art keywords
generators
power source
source unit
frame
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FI1990/000309
Other languages
French (fr)
Inventor
Matti Lahtinen
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.)
Graf & Lahtinen AG
Original Assignee
Graf & Lahtinen AG
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 Graf & Lahtinen AG filed Critical Graf & Lahtinen AG
Publication of WO1991010043A1 publication Critical patent/WO1991010043A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01B23/10—Adaptations for driving, or combinations with, electric generators

Definitions

  • the present invention relates to a power source unit as defined in the introductory part of claim 1.
  • DE-publication 3403025 presents a tractor provided with additional assemblies and with a shaft rotated by the trac ⁇ tor engine, the end of said shaft being provided with two V-belt pulleys.' By means of V-belts running along triangu ⁇ lar paths, one of the pylleys engages a welding generator and a pump while the other engages an air compressor and an a.c. generator.
  • DE-publication 2820053 presents an apparatus for the output of energy from a tractor.
  • the apparatus comprises a hydrau ⁇ lic pump placed on the tractor and connected to its engine, a hydraulic motor connected via hydraulic hoses to the pump, and an energy output shaft rotated by the hydraulic motor.
  • the object of the present invention is to achieve, a sepa ⁇ rate, movable power source unit which can be connected to an external hydraulic system, e.g. that of a tractor.
  • the features characteristic of the power source unit of the invention are presented in the claims.
  • the power source unit of the invention is small-sized and efficient.
  • Fig. 1a presents the power source unit of the invention as seen from the end.
  • Fig. 1b presents the power source unit in section A - A.
  • Fig. 2 presents a generator connection.
  • Fig. 3 presents another generator connection.
  • Fig. 4 presents another embodiment of the power source unit of the invention.
  • the separate power source unit shown in Fig. 1 has a metal frame 1 having the shape of the letter A as seen from the end..
  • the sides 2, 3 of the frame form the legs of the power source unit.
  • Between the sides is an intermediate plate 4 supporting a hydraulic motor 5 attached to it by means of bolts or equivalent.
  • the hydraulic motor can be connected to an external hydraulic system via connectors 6, 7.
  • the motor shaft is provided with a pulley 8 which, by means of a polygroove flat belt 9, transmits a rotating motion to the pulleys 12, 13 of two generators 10, 11, one of which can be used as a welding generator and the other to gener ⁇ ate a mains-frequency a.c. voltage. Both generators are attached with bolts 14, 15 onto the sides of the frame.
  • Fig. 1b shows a top view of the power source unit as sectioned along line A - A.
  • Fig. 2 illustrates a generator circuit in which a rectifier 20 and 21 is connected to the output terminals of the stator of each generator.
  • the first rectifier 20 is connected e.g. as a welding rectifier and the other is used for charging an automobile battery or other d.c. load with a voltage of 12 or 24 V.
  • the first stator winding consists of three star-connected coils L n , L 2 and L 3 forming a three-phase winding. Magnetization is effected by the first magnetizing winding L- * .
  • the output terminals P-i , P_» and P of the first stator winding are connected to the input of rectifier 20.
  • the rectifier consists of a diode bridge Di - D ⁇ which full-wave rectifies the three-phase voltage to produce a d.c. voltage at the rectifier output terminals Ps_- and P 9 _». Magnetization is performed by supplying a d.c. current to the terminals P__ «. and P_» b of the magnetizing winding. If the rectifier is used to feed an inverter, the magnetizing current can be taken from the d.c. circuit supplying the inverter.
  • the second stator winding which may be identical to or different from the first one, consists of three star-con ⁇ nected coils LB, 1-6 and 7 forming a three-phase winding. Magnetization is effected by the second magnetizing winding La.
  • the output terminals P s , P 6 and P-. of the second stator winding are connected to the input of rectifier 21.
  • the rectifier consists of a diode bridge D 7 - D ⁇ 2 which full- wave rectifies the three-phase voltage to produce a d.c. voltage at the output terminals P.o_- and P ⁇ o__ of the rectifier.
  • Magnetization is performed by supplying a d.c. current to the terminals P ⁇ «_ and P ⁇ __ of the magnetizing winding.
  • Fig. 3 presents a generator circuit in which only one of the generators has a rectifier 20 connected to its output terminals.
  • the rectifier is used to feed the d.c. load of an automobile and to charge the battery, or it is used as a welding rectifier.
  • an a.c. voltage is avail ⁇ able at the terminals P 5 , Pe and P 7 of the other stator winding. This voltage can be used to feed an a.c. load directly.
  • the hydraulic motor and the generators are placed in a triangular arrangement in a metal frame 22 so that the frame forms the end flange of the assembly.
  • the frame has protruding legs 23a, 23b by which it can be attached to a base e.g. by means of bolts.
  • the shafts of the generators and hydraulic motor pass through the frame and are provided with pulleys 26 - 28 forming a triangular pattern.
  • a cogged belt 25 connects the pulleys 26 and 27 of the motor and one of the generators while another cogged belt 24 connects the pulleys 26 and 28 of the motor and the other generator.
  • the connections of the motor and the generators can be imple ⁇ mented as explained above.
  • the generator shafts are provide with fans 29 and 30.

Landscapes

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

Abstract

A power source unit comprising a hydraulic motor and two generators so connected by at least one belt (24, 25) that the centres of the pulleys of the motor and generators form a triangle or a straight line. The unit has a common metal frame (22), to which each of the devices mentioned is attached by its end, the frame having a lower part (23a, 23b) constituting the legs of the unit.

Description

POWER SOURCE UNIT
The present invention relates to a power source unit as defined in the introductory part of claim 1.
DE-publication 3403025 presents a tractor provided with additional assemblies and with a shaft rotated by the trac¬ tor engine, the end of said shaft being provided with two V-belt pulleys.' By means of V-belts running along triangu¬ lar paths, one of the pylleys engages a welding generator and a pump while the other engages an air compressor and an a.c. generator.
DE-publication 2820053 presents an apparatus for the output of energy from a tractor. The apparatus comprises a hydrau¬ lic pump placed on the tractor and connected to its engine, a hydraulic motor connected via hydraulic hoses to the pump, and an energy output shaft rotated by the hydraulic motor.
The object of the present invention is to achieve, a sepa¬ rate, movable power source unit which can be connected to an external hydraulic system, e.g. that of a tractor. The features characteristic of the power source unit of the invention are presented in the claims. The power source unit of the invention is small-sized and efficient.
In the following, the invention is described in detail by the aid of an example by referring to the attached draw¬ ings, in which
Fig. 1a presents the power source unit of the invention as seen from the end.
Fig. 1b presents the power source unit in section A - A.
Fig. 2 presents a generator connection. Fig. 3 presents another generator connection.
Fig. 4 presents another embodiment of the power source unit of the invention.
The separate power source unit shown in Fig. 1 has a metal frame 1 having the shape of the letter A as seen from the end.. The sides 2, 3 of the frame form the legs of the power source unit. Between the sides is an intermediate plate 4 supporting a hydraulic motor 5 attached to it by means of bolts or equivalent. The hydraulic motor can be connected to an external hydraulic system via connectors 6, 7. The motor shaft is provided with a pulley 8 which, by means of a polygroove flat belt 9, transmits a rotating motion to the pulleys 12, 13 of two generators 10, 11, one of which can be used as a welding generator and the other to gener¬ ate a mains-frequency a.c. voltage. Both generators are attached with bolts 14, 15 onto the sides of the frame. The upper end of the generator 10 on the right is attached to a fixing plate 16 at the crest of the frame by means of a threaded bar 17 of variable length, permitting the genera¬ tor to be rotated about its lower supporting bolt to adjust the belt tension. The upper end of the other generator is attached to the fixing plate by means of a bar 18. The belt forms a downward-pointing isosceles triangle. The unit can be covered with a plastic cover 19 or equivalent. Fig. 1b shows a top view of the power source unit as sectioned along line A - A.
Fig. 2 illustrates a generator circuit in which a rectifier 20 and 21 is connected to the output terminals of the stator of each generator. The first rectifier 20 is connected e.g. as a welding rectifier and the other is used for charging an automobile battery or other d.c. load with a voltage of 12 or 24 V. The first stator winding consists of three star-connected coils Ln , L2 and L3 forming a three-phase winding. Magnetization is effected by the first magnetizing winding L-*. The output terminals P-i , P_» and P of the first stator winding are connected to the input of rectifier 20. The rectifier consists of a diode bridge Di - Dβ which full-wave rectifies the three-phase voltage to produce a d.c. voltage at the rectifier output terminals Ps_- and P9_». Magnetization is performed by supplying a d.c. current to the terminals P__«. and P_»b of the magnetizing winding. If the rectifier is used to feed an inverter, the magnetizing current can be taken from the d.c. circuit supplying the inverter.
The second stator winding, which may be identical to or different from the first one, consists of three star-con¬ nected coils LB, 1-6 and 7 forming a three-phase winding. Magnetization is effected by the second magnetizing winding La. The output terminals Ps, P6 and P-. of the second stator winding are connected to the input of rectifier 21. The rectifier consists of a diode bridge D7 - Dη 2 which full- wave rectifies the three-phase voltage to produce a d.c. voltage at the output terminals P.o_- and Pιo__ of the rectifier. Magnetization is performed by supplying a d.c. current to the terminals Pβ«_ and Pβ__ of the magnetizing winding.
Fig. 3 presents a generator circuit in which only one of the generators has a rectifier 20 connected to its output terminals. The rectifier is used to feed the d.c. load of an automobile and to charge the battery, or it is used as a welding rectifier. In this case, an a.c. voltage is avail¬ able at the terminals P5, Pe and P7 of the other stator winding. This voltage can be used to feed an a.c. load directly.
In the power source unit illustrated by Fig. 4, the hydraulic motor and the generators are placed in a triangular arrangement in a metal frame 22 so that the frame forms the end flange of the assembly. The frame has protruding legs 23a, 23b by which it can be attached to a base e.g. by means of bolts. The shafts of the generators and hydraulic motor pass through the frame and are provided with pulleys 26 - 28 forming a triangular pattern. A cogged belt 25 connects the pulleys 26 and 27 of the motor and one of the generators while another cogged belt 24 connects the pulleys 26 and 28 of the motor and the other generator. The connections of the motor and the generators can be imple¬ mented as explained above. In addition, the generator shafts are provide with fans 29 and 30.
It is obvious to a person skilled in the art that different embodiments or the invention are not restricted to the examples presented above, but that they may instead be varied in the scope of the following claims.

Claims

1. Power source unit comprising a hydraulic motor (5) and two generators (10,11) so connected by at least one belt (9;24,25) that the centres of the pulleys (8,12,13;26-28) of the motor and generators form a triangle or a straight line, c h a r a c t e r i z e d in that the unit has a common metal frame (22), to which each of the devices mentioned is attached by its end, said frame being provided with a part (23a,23b) constituting the legs of the unit.
2. Power source unit comprising a hydraulic motor (5) and two generators (10,11) so connected by at least one belt (9;24,25) thai the centres of the pulleys (8,12,13;26-28) of the motor and generators form a triangle or a straight line, c h a r a c t e r i z e d in that the motor (5) and generators (10,11) are mounted on a frame (1 ) having the shape of the letter A as seen from the end, the sides (2,3) of said frame serving as legs of the power source unit, in such manner that one of said devices (5,10,11) is placed on an intermediate support (4) between the sides and the other two on the sides, and that the hydraulic motor is provided with a connection (6,7) permitting it to be connected to an external hydraulic system.
3. Power source unit according to claim 2, c h a r a c ¬ t e r i z e d in that at least one of the devices placed on the sides is so mounted on the frame that, to allow adjustment of belt tension, the distance of its pulley from the other pulleys can be varied.
4. Power source unit according to claim 3, c h a r a c ¬ t e r i z e d in that the device is attached to a fixing plate (16) or equivalent at the top of the frame by means of a bar (17) of variable length, and at its lower end by means of an attachment (14) permitting rotation, e.g. a bolt.
5. Generator unit according to any one of claims 1 - 4, in which at least one of the generators is an a.c. generator, c h a r a c t e r i z e d in that at least one of the generators is provided with a rectifier (20,21) connected to it.
6. Generator unit according to any one of claims 1 - 5, c h a r a c t e r i z e d in that the triangle is of an essentially isosceles form.
PCT/FI1990/000309 1989-12-22 1990-12-20 Power source unit Ceased WO1991010043A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI896225 1989-12-22
FI896225A FI896225L (en) 1989-12-22 1989-12-22 POWER SUPPLY UNIT.

Publications (1)

Publication Number Publication Date
WO1991010043A1 true WO1991010043A1 (en) 1991-07-11

Family

ID=8529584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1990/000309 Ceased WO1991010043A1 (en) 1989-12-22 1990-12-20 Power source unit

Country Status (3)

Country Link
AU (1) AU6960091A (en)
FI (1) FI896225L (en)
WO (1) WO1991010043A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2361756C1 (en) * 2008-01-28 2009-07-20 Усеня Василий Владимирович Method of mounting "musat" welding apparatus on vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820053A1 (en) * 1977-05-07 1978-11-16 Ferranti Ltd DEVICE FOR TAKING AN ENERGY FROM A TRACTOR
DE3403025C2 (en) * 1983-10-31 1986-10-02 Automaten AG, Alpnach Work vehicle with additional units
EP0280420A1 (en) * 1987-02-04 1988-08-31 B.A. BODENHEIMER & CO. INC. Housing for an electrical generator unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820053A1 (en) * 1977-05-07 1978-11-16 Ferranti Ltd DEVICE FOR TAKING AN ENERGY FROM A TRACTOR
DE3403025C2 (en) * 1983-10-31 1986-10-02 Automaten AG, Alpnach Work vehicle with additional units
EP0280420A1 (en) * 1987-02-04 1988-08-31 B.A. BODENHEIMER & CO. INC. Housing for an electrical generator unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2361756C1 (en) * 2008-01-28 2009-07-20 Усеня Василий Владимирович Method of mounting "musat" welding apparatus on vehicle

Also Published As

Publication number Publication date
FI896225A7 (en) 1991-06-23
FI896225A0 (en) 1989-12-22
FI896225L (en) 1991-06-23
AU6960091A (en) 1991-07-24

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