GB1131314A - Improvements in arrangements providing power-transmission means for use alternatively with conventional driving power-transmission means in tractors - Google Patents

Improvements in arrangements providing power-transmission means for use alternatively with conventional driving power-transmission means in tractors

Info

Publication number
GB1131314A
GB1131314A GB4626566A GB4626566A GB1131314A GB 1131314 A GB1131314 A GB 1131314A GB 4626566 A GB4626566 A GB 4626566A GB 4626566 A GB4626566 A GB 4626566A GB 1131314 A GB1131314 A GB 1131314A
Authority
GB
United Kingdom
Prior art keywords
tractor
pump
motor
transmission means
valve
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.)
Expired
Application number
GB4626566A
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.)
Valmet Oy
Original Assignee
Valmet Oy
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 Valmet Oy filed Critical Valmet Oy
Publication of GB1131314A publication Critical patent/GB1131314A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40523—Flow control characterised by the type of flow control means or valve with flow dividers
    • F15B2211/4053—Flow control characterised by the type of flow control means or valve with flow dividers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/78—Control of multiple output members
    • F15B2211/781—Control of multiple output members one or more output members having priority

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)

Abstract

1,131,314. Tractor driving gear. VALMET OY. 17 Oct., 1966 [7 Feb., 1966], No. 46265/66. Heading B7H. [Also in Division F2] An arrangement providing hydro-mechanical drive for use alternatively with conventional mechanical drive in a tractor comprises an hydraulic motor 3 energized by a pump 2 driven by the tractor engine, and a selector element 15 slidable, by control linkage, not shown, between alternative drive positions, viz.: (a) in which it connects the hydraulic motor via a reduction gear train 9, 11, 12, 16 to the input shaft 14 of the conventional change speed gear-box 13 for tractor speeds substantially less than normal, and (b) in which it connects the engine, via the conventional main clutch 18, directly to the input shaft 14 for normal tractor speeds. The selector element 15 is rotationally fast with but axially slidable on the input shaft 14 and comprises the externally toothed gear-wheel 16 engageable with the pinion 12 of the reduction gear train and an internally toothed clutch member 17 engageable with a clutch member 20 fast with the output shaft from the main clutch 18. The pump 2 may be the conventional pump of a tractor hydraulic lifting equipment and/or power take-off. In Fig. 3 (not shown), a known proportional flow distributer valve (22) directs a proportion of the oil from the pump 2 to the motor 3, the remaining oil being directed to the hydraulic lifting equipment of the tractor, this arrangement providing for simultaneous use of the motor 3 and the lifting equipment. The oil to the motor 3 is controlled by a threeposition four-way valve (25) for Forward, Reverse or Neutral. A pressure relief valve (30) preceding the valve (25) limits hydraulic motor torque to protect the gear-box 13 and the tractor tyres.
GB4626566A 1966-02-07 1966-10-17 Improvements in arrangements providing power-transmission means for use alternatively with conventional driving power-transmission means in tractors Expired GB1131314A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI29966A FI43388B (en) 1966-02-07 1966-02-07

Publications (1)

Publication Number Publication Date
GB1131314A true GB1131314A (en) 1968-10-23

Family

ID=8503908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4626566A Expired GB1131314A (en) 1966-02-07 1966-10-17 Improvements in arrangements providing power-transmission means for use alternatively with conventional driving power-transmission means in tractors

Country Status (4)

Country Link
AT (1) AT271214B (en)
DK (1) DK126577B (en)
FI (1) FI43388B (en)
GB (1) GB1131314A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005416A1 (en) * 1987-12-02 1989-06-15 Teunis Burggraaff Hydraulic drive for reduced speed of tractors
FR2686296A3 (en) * 1992-01-16 1993-07-23 Conception Commercialisation Mat Civil engineering or similar works vehicle including a tool associated with the towing vehicle
US9464580B2 (en) 2014-01-02 2016-10-11 Caterpillar Paving Products Inc. Torque limit control

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097732A1 (en) * 1982-06-26 1984-01-11 Martin Beilhack Maschinenfabrik und Hammerwerk GmbH Vehicle for a heavy implement that may be mounted
CN116892545B (en) * 2023-09-11 2024-05-31 临工重机股份有限公司 Control system of aerial work platform and aerial work platform

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005416A1 (en) * 1987-12-02 1989-06-15 Teunis Burggraaff Hydraulic drive for reduced speed of tractors
FR2686296A3 (en) * 1992-01-16 1993-07-23 Conception Commercialisation Mat Civil engineering or similar works vehicle including a tool associated with the towing vehicle
US9464580B2 (en) 2014-01-02 2016-10-11 Caterpillar Paving Products Inc. Torque limit control

Also Published As

Publication number Publication date
AT271214B (en) 1969-05-27
DK126577B (en) 1973-07-30
FI43388B (en) 1970-11-30

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