GB2133486A - A changeable wheel gear - Google Patents

A changeable wheel gear Download PDF

Info

Publication number
GB2133486A
GB2133486A GB08331374A GB8331374A GB2133486A GB 2133486 A GB2133486 A GB 2133486A GB 08331374 A GB08331374 A GB 08331374A GB 8331374 A GB8331374 A GB 8331374A GB 2133486 A GB2133486 A GB 2133486A
Authority
GB
United Kingdom
Prior art keywords
changeable
wheels
gear
wheel gear
toothed
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.)
Granted
Application number
GB08331374A
Other versions
GB8331374D0 (en
GB2133486B (en
Inventor
Franz Grosse-Scharmann
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.)
Amazonen Werke H Dreyer GmbH and Co
Original Assignee
Amazonen Werke H Dreyer GmbH and Co
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
Priority to DE19823243391 priority Critical patent/DE3243391C1/en
Application filed by Amazonen Werke H Dreyer GmbH and Co filed Critical Amazonen Werke H Dreyer GmbH and Co
Publication of GB8331374D0 publication Critical patent/GB8331374D0/en
Publication of GB2133486A publication Critical patent/GB2133486A/en
Application granted granted Critical
Publication of GB2133486B publication Critical patent/GB2133486B/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B71/00Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
    • A01B71/06Special adaptations of coupling means between power take-off and transmission shaft to the implement or machine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/001Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion convertible for varying the gear-ratio, e.g. for selecting one of several shafts as the input shaft

Abstract

A changeable wheel gear, more especially for an agricultural machine, including "pick-off" gear wheels 9, 10 which are accommodated in a gear housing provided with a removable inventor cover 12, said wheels being slidable on two shafts 5, 6 which extend parallel to each other. In order to facilitate the operations of exchanging and interchanging the change wheels an interchange arrangement device is attachable to each of the change toothed wheels 9, 10 the wheels being provided with screw-threaded bores 18 for this purpose. <IMAGE>

Description

SPECIFICATION A changeable wheel gear The invention relates to a changeable wheel gear, more especially for an agricultural machine including changeable toothed gear wheels which are accommodated in a gear housing provided with a removable cover; and said wheels are slidable on two shafts which extend parallel to each other.

A changeable wheel gear is disclosed in German Auslegeschrift No. 1 148792. The original rotational speed can be altered in simple manner by changinground or exchanging the changeable wheels of thins changeable wheel gear. However, it was apparent, in practice, that such gearing cannot actually be readily operated during use ofthe machine fitted with the changeable wheel gear. During operation ofthe machine, the changeable wheels become so hotthat they cannot be touched by bare hands. In addition,the changeable gear wheels are very closely surrounded by the housing and the changeable wheels are disposed a long way inside the housing, with the resultthatthe peripheral regions ofthe change wheels can hardly be reached.

The invention seeks, therefore, to provide a simple possibility wherebythe operation of exchanging and/or interchanging changeable gear wheels in transmission gears are considerablyfacilitated.

According to the present invention there is provided a changeablewheel gear including changeable tooth ed gearwheelswhich are accommodated in a gear housing provided with a removable cover and said wheels are slidable on two shafts which extend parallel to each other; and wherein an interchange arrangement device is mountable on to each ofthe changeable toothed wheels and isto be connected to the changeable toothed wheels.

As a result ofthisfeature, the changeable gear wheels can be readilyinterchangedand/orexchanged under many possible conditions. Even changeable wheels which are securely attached to their shafts can be easily and effortlessly removed from the shaft.

The invention will be described further by way of examplewith rnferencetotheaccompanying drawings, in which: Fig. lisa sectional side elevation of a changeable wheel gear; Fig 2 is a fragmentary elevational view taken along the line Il-Il in the direction ofthe arrows and illustrating the changeable wheel gear with gear cover removed; Fig. 3 is a side elevation of an interchange arrange mentdevice accordingtothe invention; Fig. 4 is also a side elevation of an alternative interchange arrangement device according to the invention; and Fig. 5 is a side elevation ofafurtheralternative interchange arrangement device according to the invention.

Atoothedwheel gearing 1 togetherwith achange- able wheel gearing 2, is securely disposed in known manner (andtherefore notshown) on theframe of an agricultural machine (also not shown) by means of the brackets 3.

Two transmission shafts 5 and 6 are disposed parallel to each other, when viewed in the travel direction in the housing 4 of the toothed wheel gearing 1 and are mounted to be rotatable therein.

The primary shaft5 protrudes forwardly from the housing 4 and is provided with a splined profile 7 for connection with a universal joint shaft (not shown).

Shaft ends 5' and 6' ofthe primary shaft 5 and the shaft 6 protrude beyond the bearing points 8 at the rear end ofthe housing 4. Two intermeshing changeable toothed wheels 9 and 10 (spur gears) are attached to the shaft ends Sand 6' and are prevented from being axially displaced by means of screws or bolts 11. The two changeabletoothedwheels 9 and 10 constitute the changeable wheel gearing 2. A cover 12 is provided to prevent dirt penetrating the changeable toothed wheels 9 and 10.

In addition, a bevel gearwheel 13 is disposed on the shaft 6 and said wheel 13 meshes with additional bevel gearwheel 14which is mounted on an intermediate shaft 15 disposed perpendiculartothe parallel shafts 5 and 6. The intermediate shaft 15 is driven bythemitregear16which isformed bythe bevel gear wheels 13 and 14and, in turn,the intermediate shaft 15 drivesthe intermediate gearing 17 which comprises a pluralitrofintermeshing spur wheels disposed beneath one another, said intermediate gearing 17 then permitting numerous types of tools and other apparatuses to be driven. It is also or alternatively possibleforthe shaft 6 to directly drive individual apparatuses.

The transmission ratio of the toothed wheel gearing 1 and, as a consequence thereof, the speed ofthe shaft 6, can be altered by interchanging the changeable toothed wheels 9 and 10 with each other or by replacing the changeable toothed wheels 9 and 10 with other change toothed wheels having a different number of matching teeth.

The changeable toothed wheels 9 and 10 have bores 18formed therein, and each bore 18 is provided with a thread. These bores permit interchange arrangement devices to be connected to the changeable toothed wheels 9 and 10.

The interchange arrangement devices may have verydifferentforms. The interchange arrangement device illustrated in Fig. 3 is in the form of a pin 20 provided with the screw th read 19. The bolt 20 can be screwed into one of the bores 18 in the changeable toothed wheels 9 and 10, respectively via the screw thread 19.

The interchange arrangement devices illustrated in Fig. 4 is in the form of a handle 21 having threaded bolt 22 which can be screwed into one of the bores 18 in the changeable toothed wheels 9 or 10, respectively.

The interchange arrangement device illustrated in Fig. 5 is intheform of a handle 23. A U-shaped sheet metal portion 24 is welded to the handle 23. Slots 26 are provided in longitudinal side 25 ofthis sheet metal portion 24 and handle 23 is screwed onto the changeable toothed wheels 9 and/or 10, respectively, by means of screws which are inserted through the slots 26 and are screwed into the bores 18.

The operations of interchanging and exchanging the changeable toothed wheels can be described as follows: Once the cover 12 has been removed, the bolts 11, the spring washer and the disc are first removed.

Subsequently, an interchange arrangement device is initially screwed into one or both bores 18. This then permits the appropriate changeable toothed wheel to be easily removed from the shaft. The interchange arrangement device also provides theforce whereby changeable toothed wheels-securely disposed on the shafts can be removed from the shaft. Once the first changeable toothed wheel has been removed from the shaft, the interchange arrangement device is unscrewed from this toothed wheel and then screwed into the bore or bores, respectively, in the other toothed wheel. This toothed wheel can now also be removed from its shaft. Conversely, the desired toothed wheels can then be repositioned on the shafts so that the desired transmission ratio is obtained. In the embodiment, it is advisable for the upper change toothed wheel to be always removed first and for such to be subsequently repositioned last.

Afterthe changeable toothed wheels have been repositioned or positioned, they are again secured by the bolts 11 together with the discs and spring washer This operation is concluded by screw connec.. againthe cover 12 in front of the aperture.

Subsequently, the gearing and machine can continue operating again.

Claims (2)

1. A changeable wheel gear including changeable toothed gearwheels (9, which are accommodated in a gear housing (2) provided with a removable cover (12); and said wheels (9,10) are slidable on two shafts (5,6) which extend parallel to each other; and wherein an interchange arrangement device (20, 21, 23) is mountable onto each of the changeable toothed wheels (9, 10) and is to be connected to the changeable toothed wheels (9, 10).
2. A changeable wheel gear as claimed in claim 1, in which the interchanging device includes tapped bores (18)formed in each ofthe changeable toothed wheels (9, 10) and bolts screwable therein.
2. A changeable wheel gear as claimed in claim 1, in which each ofthe changeable toothed wheels (9, 10) is provided with at lease one bore (18).
3. A changeable wheel gear as claimed in claim 2, in which the bores (18) are threaded bores.
4. Achangeablewheel gear as claimed in claims 1 to 3, in which the interchange arrangement devices are in the form of pins (20) which are each provided with a screw th read (19), and said interchange arrangement devices can be screwed into the threaded bores (18).
5. Achangeablewheel gearasclaimed in claims 1 to 3, in which interchange arrangement devices are in theform of handles (21, 23) and are capable of being screw-connected to the threaded bores (18).
6. Achangeablewheel gearconstructedand arranged to operate substantially as herein described with reference to and as illustrated in the accompanying drawings.
7. An interchange arrangementdevice for use in a changeable wheel gear substantially as herein describedwith referenceto Figs. 3,4or5 of the accompanying drawings.
New claims or amendments to claims filed on 15th March 1984 Superseded claims 1 and 2 New or amended ciaims:--
1. Achangeablewheel speed changegearforan agricultural machine including changeable toothed gearwheels (9,10)which are accommodated in a gear housing (2) provided with a removable cover (12), and said wheels (9, 10) are slidable onto two shafts (5, 6) in said housing which extend parallel to each other and removable therefrom by manual force; and wherein an interchanging device (20, 21, 23) is mountable onto each ofthechangeabletoothedwheels (9,10) and positively connected therewith and directly by means ofwhich device each changeable toothed wheel (9, 10) may be manually removed from its shaft for replacement.
GB08331374A 1982-11-24 1983-11-24 A changeable wheel gear Expired GB2133486B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823243391 DE3243391C1 (en) 1982-11-24 1982-11-24 Change gear, especially for farm machines

Publications (3)

Publication Number Publication Date
GB8331374D0 GB8331374D0 (en) 1984-01-04
GB2133486A true GB2133486A (en) 1984-07-25
GB2133486B GB2133486B (en) 1986-10-29

Family

ID=6178872

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08331374A Expired GB2133486B (en) 1982-11-24 1983-11-24 A changeable wheel gear

Country Status (6)

Country Link
DE (1) DE3243391C1 (en)
DK (1) DK537583A (en)
FR (1) FR2536488B1 (en)
GB (1) GB2133486B (en)
NL (1) NL8303593A (en)
SE (1) SE8306430L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678452A (en) * 1995-10-10 1997-10-21 Frazier; Robert Joseph Grinder powered device for pulling a chain

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB678652A (en) * 1951-03-28 1952-09-03 Amihud Carmi Improvements in or relating to wheel pullers
GB733345A (en) * 1952-01-24 1955-07-13 Bristol Company Drive unit for recording, controlling and like instruments
GB962938A (en) * 1962-09-28 1964-07-08 Alfred Kleinbongartz Improvements in or relating to a puller device
GB1161416A (en) * 1965-11-01 1969-08-13 Lely Nv C Van Der Improvements in or relating to Transmission Forming Part of Power-operated Agricultural Implements
GB2001000A (en) * 1977-07-14 1979-01-24 Brodie M Multi-purpose roller

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1148792B (en) * 1957-09-20 1963-05-16 Rotary Hoes Ltd Cultivator for tillage with veraenderlicher drive translation
FR1203335A (en) * 1957-09-20 1960-01-18 Rotary Hoes Ltd Mechanism of variable transmission
DE1851844U (en) * 1959-07-23 1962-05-17 Friedrich Schwarzer Gear translation by gearbox with gear-changing variable transmission ratio.
US4096617A (en) * 1977-05-26 1978-06-27 Caterpillar Tractor Co. Axle pulling means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB678652A (en) * 1951-03-28 1952-09-03 Amihud Carmi Improvements in or relating to wheel pullers
GB733345A (en) * 1952-01-24 1955-07-13 Bristol Company Drive unit for recording, controlling and like instruments
GB962938A (en) * 1962-09-28 1964-07-08 Alfred Kleinbongartz Improvements in or relating to a puller device
GB1161416A (en) * 1965-11-01 1969-08-13 Lely Nv C Van Der Improvements in or relating to Transmission Forming Part of Power-operated Agricultural Implements
GB2001000A (en) * 1977-07-14 1979-01-24 Brodie M Multi-purpose roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678452A (en) * 1995-10-10 1997-10-21 Frazier; Robert Joseph Grinder powered device for pulling a chain

Also Published As

Publication number Publication date
FR2536488B1 (en) 1986-02-07
GB2133486B (en) 1986-10-29
DK537583D0 (en) 1983-11-24
FR2536488A1 (en) 1984-05-25
SE8306430L (en) 1984-05-25
GB8331374D0 (en) 1984-01-04
DK537583A (en) 1984-05-25
DE3243391C1 (en) 1984-04-12
NL8303593A (en) 1984-06-18
SE8306430D0 (en) 1983-11-22

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PCNP Patent ceased through non-payment of renewal fee