GB2382387A - Hydraulically braked differential connected to a power-take-off shaft - Google Patents

Hydraulically braked differential connected to a power-take-off shaft Download PDF

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Publication number
GB2382387A
GB2382387A GB0127965A GB0127965A GB2382387A GB 2382387 A GB2382387 A GB 2382387A GB 0127965 A GB0127965 A GB 0127965A GB 0127965 A GB0127965 A GB 0127965A GB 2382387 A GB2382387 A GB 2382387A
Authority
GB
United Kingdom
Prior art keywords
tractor
differential
power
shaft
bar
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.)
Withdrawn
Application number
GB0127965A
Other versions
GB0127965D0 (en
Inventor
Joseph Carroll
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB0127965A priority Critical patent/GB2382387A/en
Publication of GB0127965D0 publication Critical patent/GB0127965D0/en
Publication of GB2382387A publication Critical patent/GB2382387A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/20—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing in which the differential movement is limited
    • 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
    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/721—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously
    • F16H3/722—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously with a fluid throttle

Abstract

A trailed powered agricultural/forestry implement, eg a fertilizer spreader, is connected to a tractor via a reciprocating draw-bar 8 and has wheels coupled to axles which are driven by a differential 4. A power-take-off shaft transmits power from the tractor to the differential 4 which is purposely allowed to slip so that motion is transferred to an oil pump 7 that performs as a brake when resistence in an oil flow circuit 9 is increased by a hydraulic valve operated by push/pull forces exerted upon reciprocating draw-bar 8. Due to the braking effect the once slipping differential 4 transmits a proportioned amount of power to prop shaft 2 and, via the axles, rotates the wheels. This arrangement eliminates jack knife under cornering since wheel speeds between trailer and tractor are matched and it may be used with any type of tractor. Drive between prop shaft 2 and differential 4 may be disconnected by a clutch mechanism 5.

Description

<Desc/Clms Page number 1>
Description Variable speed P. T. O driven axle (s).
This invention relates to trailed agricultural equipment such as fertilizer spreaders, trailers etc, which incorporate power driven axles (s) to increase traction and minimize damage to soil or crops.
One drawback with the currently available equipment is that one machine is usually paired with one particular tractor as the gear ratio between the two is critical. This reduces tractor choice and ability to use oversized tyre's as the increased rolling radius will most definitely result in a change to a once paired wheel speeds.
The other drawback is jack-knifing. This will occur as a result of sharp turns, due to the angle of the draw-bar and its forward pushing force.
This invention overcomes these problems by using a variable speed type transmission with-in the implement. This allows any wheel speeds to be matched to that of the tractor with-in the P. T. O. shaft's maximum revolutions per minute, (eg 0-10 mph max). This makes tractor and alternative wheel sizes to be chosen with ease.
The risk of jack-knife is eliminated due to its ability copy wheel speeds while controlling amount of forward driving force required.
Essential features Huge increase in traction/less damage to soil and crops.
Ability to turn sharp safe from jack-knife.
Useable with any tractor.
Enabling use of smaller tractors that usually lack both ballast and traction.
<Desc/Clms Page number 2>
Description to accompany drawing) FIG 1 shows a plan view of draw-bar, transmission, prop-shaft and axle/wheels assembly.
The current invention (FIG 1) shows an axle/draw-bar configuration found in that of agriculture or forestry with the addition of a p. to driven variable speed transmission and drive to wheels.
The tractor power take-off shaft 1 is connected to the input shaft 6, by means of a quick release power drive shaft (not shown). This rotates a differential 4 found within the transmission case 3 The rotating differential 4 is purposely allowed to slip transferring all motion into an adjacently connected oil pump 7. This performs as a brake due to a result of increasing resistance to the oil flow 9 by means of a hydraulic valve, operated by push/pull force exerted upon the reciprocating draw-bar 8. Due to the characteristics of the differential 4, any speed decrease in the oil pump 7 is automatically diverted to the driving axle 10 via the prop shaft 2. Drive between prop shaft 2 and transmission 3 can be disconnected for road use by means of a simple clutch mechanism 5.

Claims (3)

  1. Claims 1. A trailed implement of agricultural/forestry type, incorporating p. t. o driven wheels using variable speed type transmission containing a differential and hydraulic brake, producing additional traction with identical wheel speeds to towing vehicle
  2. 2. A trailed implement as claimed in claim 1 where auxiliary wheel speed is controlled using draw bar push/pull force, eliminating jack knife under cornering
  3. 3. A trailed implement as claimed in claim 1 & 2 for use with any tractor type vehicle . ype incorporating power take-off.
GB0127965A 2001-11-22 2001-11-22 Hydraulically braked differential connected to a power-take-off shaft Withdrawn GB2382387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0127965A GB2382387A (en) 2001-11-22 2001-11-22 Hydraulically braked differential connected to a power-take-off shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0127965A GB2382387A (en) 2001-11-22 2001-11-22 Hydraulically braked differential connected to a power-take-off shaft

Publications (2)

Publication Number Publication Date
GB0127965D0 GB0127965D0 (en) 2002-01-16
GB2382387A true GB2382387A (en) 2003-05-28

Family

ID=9926224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0127965A Withdrawn GB2382387A (en) 2001-11-22 2001-11-22 Hydraulically braked differential connected to a power-take-off shaft

Country Status (1)

Country Link
GB (1) GB2382387A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8246502B2 (en) 2007-04-26 2012-08-21 Antony Richard Esplin Continuous variable transmission assembly
CN103332110A (en) * 2013-07-04 2013-10-02 四川川龙拖拉机制造有限公司 Independent hydraulic power output device of tractor
CN105235506A (en) * 2015-11-04 2016-01-13 四川川龙拖拉机制造有限公司 Trailer power output device and tractor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572352A1 (en) * 1984-10-30 1986-05-02 Bucher Guyer Ag Masch Tractor with powered trailer
GB2297068A (en) * 1995-01-17 1996-07-24 Transpread International Limit Drive for the wheels of a trailer
EP0825362A2 (en) * 1996-08-22 1998-02-25 Unisia Jecs Corporation Traction distributing devices for motor vehicles
US6048286A (en) * 1998-06-13 2000-04-11 Perry; Forbes G D B Bleed closures for hydraulically limited slip differentials
US20010009879A1 (en) * 2000-01-20 2001-07-26 Unisia Jecs Corporation Traction distributing apparatus for motor vehicle
JP2001270463A (en) * 2001-02-02 2001-10-02 Iseki & Co Ltd Travel transmission device for mobile farming machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572352A1 (en) * 1984-10-30 1986-05-02 Bucher Guyer Ag Masch Tractor with powered trailer
GB2297068A (en) * 1995-01-17 1996-07-24 Transpread International Limit Drive for the wheels of a trailer
EP0825362A2 (en) * 1996-08-22 1998-02-25 Unisia Jecs Corporation Traction distributing devices for motor vehicles
US6048286A (en) * 1998-06-13 2000-04-11 Perry; Forbes G D B Bleed closures for hydraulically limited slip differentials
US20010009879A1 (en) * 2000-01-20 2001-07-26 Unisia Jecs Corporation Traction distributing apparatus for motor vehicle
JP2001270463A (en) * 2001-02-02 2001-10-02 Iseki & Co Ltd Travel transmission device for mobile farming machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI Abstract Accession No. 88-233704/25 & SU 1369977 A (BELORUSSIAN POLY) 30.01.88 (see abstract). *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8246502B2 (en) 2007-04-26 2012-08-21 Antony Richard Esplin Continuous variable transmission assembly
CN103332110A (en) * 2013-07-04 2013-10-02 四川川龙拖拉机制造有限公司 Independent hydraulic power output device of tractor
CN105235506A (en) * 2015-11-04 2016-01-13 四川川龙拖拉机制造有限公司 Trailer power output device and tractor

Also Published As

Publication number Publication date
GB0127965D0 (en) 2002-01-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)