CA1111663A - Pickup of a farm machine - Google Patents
Pickup of a farm machineInfo
- Publication number
- CA1111663A CA1111663A CA344,348A CA344348A CA1111663A CA 1111663 A CA1111663 A CA 1111663A CA 344348 A CA344348 A CA 344348A CA 1111663 A CA1111663 A CA 1111663A
- Authority
- CA
- Canada
- Prior art keywords
- pickup
- frame
- side members
- crossbar
- farm machine
- 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
Links
Landscapes
- Harvesting Machines For Root Crops (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
In a pick-up of a farm machine, the crossbar of the frame which interconnects the frame side members is sectional, while its components are hinge-interconnected at a joint thereof so as to swivel with respect to each other round the cross longitudinal axis. The pick-up is useful in cutting down harvesting lossess concerned with the picking of various farm crops, especially in the case of complicated field contours.
In a pick-up of a farm machine, the crossbar of the frame which interconnects the frame side members is sectional, while its components are hinge-interconnected at a joint thereof so as to swivel with respect to each other round the cross longitudinal axis. The pick-up is useful in cutting down harvesting lossess concerned with the picking of various farm crops, especially in the case of complicated field contours.
Description
The present invention relates to pickups of farm machines useful in picking up from the ground various farm - crops that have been previously mown and swathed.
A number of pickup types are currently used in farm practice, including rotary rake pickups rigidly fixed on the farm machine. Inasmuch as the pickup is held in fron-t of the machine, the following of the field contours by the implement is not possible since the gauging members (i.e. runner shoes and wheels) of the machine are situated behind the pickpup. Thus, such pickups have found widespread application only with grass harvesters, wherein the effective swath width is small, and the above-discussed disadvantage inherent in the pickups of this type does not therefore affect substantially the quality of harvesting.
Rotarv rake pickups having an intermediate member, viz., a conveyor secured on a frame common with the pickup itself and adapted to transfer the picked up mass to the receptacle of the farm machine is also known. The frame o:E such a pickup is hinged to the machine which provides for good longitudinal following of the field contours. However, such pickups have found but restricted application due to the complicated construction thereof.
Most extensive application for picking grain crops have heretofore been gained by conveyer-type pickups. The pickups of such type are shaped as a conveyer whose shafts are mounted in the frame side members on hinged bearing supports. To impart rigidity to the entire construction in the plane passing through the axes of the conveyor shafts the frame side members are interlinked through a crossbar which is rigidly fixed on the frame side members. The crossbar may be made of both closed rolled section such as piping, or open ones ~` such as channels. In the former case i.e., with closed sections, ,``
~æ
~ .
the frame struc-ture features very high rigidity which precludes - transverse following o~ the field con-tours, i.e., a possibility of individual movement of the side members in a ver-tical plane.
In the latter case, i.e., with open sections, a certain possibility is pr~vided for the side members to move individual~y in a vertical plane and hence to follow transversely the field contours, this being due to low twisting rigidity of the channels ` and by virtue of the crossbar twisting within the elastic strain limits.
A disadvantage inherent in the pickups with the cross-bar made of open rolled sections resides in a very narrow range of transverse following of the field contours due to restricted elastic strain limits. Another disadvantage of said pickups is the presence of reverse loads applied to the frame components i.e., crossbar, side members, and crossbar-to-side members joints, said loads being liable to cause fatigue cracks in the material of the frame components and their premature failure.
The present invention reduces harvesting losses concerned with picking up the crops being harvested, due to improved transverse following of the field contours by the pickup.
The present invention also rules out reverse loads upon the frame components, resulting from strain experienced by the frame crossbar, and to extend the service elastic life of the frame components thereby.
~` According to the present invention there is provided a pickup of frame machine, comprisin~ a frame formed ~rom side members interconnected by a crossbar; a conveyer hingedly mounted in said side members and haviny a plurality of shafts; said conveyer beiny hingedly mounted on said farm machine; said crossbar comprsiing at least two sections which sections are hingedly interconnec-ted at a joint so as to turn :
. .
~ -3~
I
with respect to each other abou-t the lonyitudinal axis of the crossbar.
Thus, according to the present invention a pickup of a farm machine comprising a conveyer hinged-mounted on said machine and having the shafts thereof hinged to the frame side members which are interlinked through a sectional crossbar, the components of said crossbar being hinge-interconnected at a ]oint so as to swivel with respect to each other round the crossbar longitudinal axis, The essence of the invention consists in the following. When the transverse field contours varies the pickup support wheeis locked-in with the side members of the conveyer frame change their position with respect to the farm machine that is, one of the wheels rises or descends, one of the wheels rises, while the other wheel descends. Angular displacement of the wheels about the point of hitch of the conveyer to the machine is followed by the frame side members. Unrestricted motion of the side members and of the frame components coupled thereto is provided for due to a hinge joint located at the place of interconnection of said components and allowing said components to swivel with respect to each other round the crossbar longitudinal axis. Ability of the crossbar components to swivel round the longitudinal axis thereof does not adversely affect the rigidity of the pickup frame in the plane ` passing through the axes of the shafts thereof.
As a result the transverse following of the field contours by the pickup is improved which reduces harvesting losses concerned with the picking process. In addition, such `-~` a constructional arrangement of the pic]cup rules out any reverse loads upon the pickup frame components while following - the field contours, which adds to the service durability of ~ said frame and makes it possible to render the strength require-.~
~ ~ -4-.~
" I
ments imposed upon said components less strict.
The present invention will be further illustrated by way of the accompanying drawings, in which:-Fig. 1 is a front elevation of a pickup according toone embodiment of the present invention shown on the field where a transverse right-hand slope occurs; and Fig. 2 is a plan view of the pickup showing a section taken in the plane passing through the longitudinal axes of the shafts and of the frame crossbar.
Referring to the drawings, an endless conveyer belt 1, carrying pickup fingers, passes around shafts 2 and 3 secured to side members 4 and S of a frame 6 on hinged-mounted bearing supports 7. The frame crossbar interconnecting the side members comprises two pieces 8 and 9 which form a joint 10.
The pickup is hitched to a farm machine (a grain combine in this particular case) through brackets 11, wherein the journals of the shaft 3 rest on hinge-mounted bearing supports 12. The front portion of the pickup rests upon the surface of the field through wheels 13 rigidly fixed on the ~0 frame side members 4 and 5.
- In operation the farm machine -travels along the windrow of the crop being picked up in such a way that said windrow fall within the side members 4 and 5 of the pickup ~rame, and that the wheels rest upon the field surface. The pickup fingers of the conveyer belt 1 lift the windrow and transfer it to the receptacle (not shown) of the farm machine.
When the pickup rides over the field area featuring a transverse slope the pickup support wheels 13 change their position with respect to the farm machine so that the frame side members 4 and 5 swivel with respect to each other ` simultaneously with the wheels, thus allowing the shaft 2 to retain its parallelism to the field surface.
.
~ 5-The present invention is instrumelltal in cutting down harvesting losses concerned with the picking process, adding to the service life of the pickup and can find efficient application for picking a variety of farm crops, especia,ly in the case of complicated field contours.
"'';-:
' ~ .
A number of pickup types are currently used in farm practice, including rotary rake pickups rigidly fixed on the farm machine. Inasmuch as the pickup is held in fron-t of the machine, the following of the field contours by the implement is not possible since the gauging members (i.e. runner shoes and wheels) of the machine are situated behind the pickpup. Thus, such pickups have found widespread application only with grass harvesters, wherein the effective swath width is small, and the above-discussed disadvantage inherent in the pickups of this type does not therefore affect substantially the quality of harvesting.
Rotarv rake pickups having an intermediate member, viz., a conveyor secured on a frame common with the pickup itself and adapted to transfer the picked up mass to the receptacle of the farm machine is also known. The frame o:E such a pickup is hinged to the machine which provides for good longitudinal following of the field contours. However, such pickups have found but restricted application due to the complicated construction thereof.
Most extensive application for picking grain crops have heretofore been gained by conveyer-type pickups. The pickups of such type are shaped as a conveyer whose shafts are mounted in the frame side members on hinged bearing supports. To impart rigidity to the entire construction in the plane passing through the axes of the conveyor shafts the frame side members are interlinked through a crossbar which is rigidly fixed on the frame side members. The crossbar may be made of both closed rolled section such as piping, or open ones ~` such as channels. In the former case i.e., with closed sections, ,``
~æ
~ .
the frame struc-ture features very high rigidity which precludes - transverse following o~ the field con-tours, i.e., a possibility of individual movement of the side members in a ver-tical plane.
In the latter case, i.e., with open sections, a certain possibility is pr~vided for the side members to move individual~y in a vertical plane and hence to follow transversely the field contours, this being due to low twisting rigidity of the channels ` and by virtue of the crossbar twisting within the elastic strain limits.
A disadvantage inherent in the pickups with the cross-bar made of open rolled sections resides in a very narrow range of transverse following of the field contours due to restricted elastic strain limits. Another disadvantage of said pickups is the presence of reverse loads applied to the frame components i.e., crossbar, side members, and crossbar-to-side members joints, said loads being liable to cause fatigue cracks in the material of the frame components and their premature failure.
The present invention reduces harvesting losses concerned with picking up the crops being harvested, due to improved transverse following of the field contours by the pickup.
The present invention also rules out reverse loads upon the frame components, resulting from strain experienced by the frame crossbar, and to extend the service elastic life of the frame components thereby.
~` According to the present invention there is provided a pickup of frame machine, comprisin~ a frame formed ~rom side members interconnected by a crossbar; a conveyer hingedly mounted in said side members and haviny a plurality of shafts; said conveyer beiny hingedly mounted on said farm machine; said crossbar comprsiing at least two sections which sections are hingedly interconnec-ted at a joint so as to turn :
. .
~ -3~
I
with respect to each other abou-t the lonyitudinal axis of the crossbar.
Thus, according to the present invention a pickup of a farm machine comprising a conveyer hinged-mounted on said machine and having the shafts thereof hinged to the frame side members which are interlinked through a sectional crossbar, the components of said crossbar being hinge-interconnected at a ]oint so as to swivel with respect to each other round the crossbar longitudinal axis, The essence of the invention consists in the following. When the transverse field contours varies the pickup support wheeis locked-in with the side members of the conveyer frame change their position with respect to the farm machine that is, one of the wheels rises or descends, one of the wheels rises, while the other wheel descends. Angular displacement of the wheels about the point of hitch of the conveyer to the machine is followed by the frame side members. Unrestricted motion of the side members and of the frame components coupled thereto is provided for due to a hinge joint located at the place of interconnection of said components and allowing said components to swivel with respect to each other round the crossbar longitudinal axis. Ability of the crossbar components to swivel round the longitudinal axis thereof does not adversely affect the rigidity of the pickup frame in the plane ` passing through the axes of the shafts thereof.
As a result the transverse following of the field contours by the pickup is improved which reduces harvesting losses concerned with the picking process. In addition, such `-~` a constructional arrangement of the pic]cup rules out any reverse loads upon the pickup frame components while following - the field contours, which adds to the service durability of ~ said frame and makes it possible to render the strength require-.~
~ ~ -4-.~
" I
ments imposed upon said components less strict.
The present invention will be further illustrated by way of the accompanying drawings, in which:-Fig. 1 is a front elevation of a pickup according toone embodiment of the present invention shown on the field where a transverse right-hand slope occurs; and Fig. 2 is a plan view of the pickup showing a section taken in the plane passing through the longitudinal axes of the shafts and of the frame crossbar.
Referring to the drawings, an endless conveyer belt 1, carrying pickup fingers, passes around shafts 2 and 3 secured to side members 4 and S of a frame 6 on hinged-mounted bearing supports 7. The frame crossbar interconnecting the side members comprises two pieces 8 and 9 which form a joint 10.
The pickup is hitched to a farm machine (a grain combine in this particular case) through brackets 11, wherein the journals of the shaft 3 rest on hinge-mounted bearing supports 12. The front portion of the pickup rests upon the surface of the field through wheels 13 rigidly fixed on the ~0 frame side members 4 and 5.
- In operation the farm machine -travels along the windrow of the crop being picked up in such a way that said windrow fall within the side members 4 and 5 of the pickup ~rame, and that the wheels rest upon the field surface. The pickup fingers of the conveyer belt 1 lift the windrow and transfer it to the receptacle (not shown) of the farm machine.
When the pickup rides over the field area featuring a transverse slope the pickup support wheels 13 change their position with respect to the farm machine so that the frame side members 4 and 5 swivel with respect to each other ` simultaneously with the wheels, thus allowing the shaft 2 to retain its parallelism to the field surface.
.
~ 5-The present invention is instrumelltal in cutting down harvesting losses concerned with the picking process, adding to the service life of the pickup and can find efficient application for picking a variety of farm crops, especia,ly in the case of complicated field contours.
"'';-:
' ~ .
Claims
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A pickup of farm machine, comprising a frame formed from side members interconnected by a crossbar; a conveyer hingedly mounted in said side members and having a plurality of shafts; said conveyer being hingedly mounted on said farm machine; said crossbar comprising at least two sections which sections are hingedly interconnected at a joint so as to turn with respect to each other about the longitudinal axis of the cross-bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA344,348A CA1111663A (en) | 1980-01-24 | 1980-01-24 | Pickup of a farm machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA344,348A CA1111663A (en) | 1980-01-24 | 1980-01-24 | Pickup of a farm machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1111663A true CA1111663A (en) | 1981-11-03 |
Family
ID=4116105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA344,348A Expired CA1111663A (en) | 1980-01-24 | 1980-01-24 | Pickup of a farm machine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1111663A (en) |
-
1980
- 1980-01-24 CA CA344,348A patent/CA1111663A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |