JP3478965B2 - Nipping rail support structure of nipping transport mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates is, it provoked a planted culms
And the inking unit cost, Do not gathered the reaper culms to the left and right La backward
Auxiliary transport device for transporting to
After gathering the grain culms in the center of the left and right, lying down from the standing posture
Feeding and transporting towards threshing equipment while gradually changing to
The merging / conveying section surrounded by the supply and conveying device
Towards an endless rotating chain with protrusions, the endless rotating chain
A spring-biased sandwich that holds the harvested culm between
The present invention relates to a holding rail support structure of a holding and conveying mechanism arranged to support a holding rail .

[0002]

2. Description of the Related Art Conventionally, as a holding rail supporting structure of the above-mentioned holding and conveying mechanism, for example, an actual flat plate 5-39240.
As disclosed in Japanese Patent Publication No. JP-A-2003-264, a spring receiving portion that receives a rear end of a spring that biases the holding rail toward the endless rotating chain is formed as a separate component from a rail base that supports the holding rail, and There has been a structure in which the spring receiving portion can be moved between a predetermined spring receiving position and a retracted position retracted from the predetermined spring receiving position. In this configuration, when grain culm occurs between the endless rotation chain and the holding rail,
Insert your hand through the narrow gap between the elevating devices installed at the front of the holding and transporting mechanism, and perform the fixing release operation of the fixing tool that fixes the spring receiving part to the predetermined spring receiving position on the rail base. By displacing the position of the receiving part from the spring receiving position to the retracted position, it becomes possible to weaken the biasing force of the spring on the side of the endless turning chain by the spring, and thus the endless turning chain and the holding rail. When the grain culm is clogged between the pulling devices, compared to the case where the hand is inserted through a narrow gap between the raising devices and the rail stand is removed from the fixed frame, the mowing squeezed between the endless rotation chain and the holding rail is removed. This makes it possible to remove grain culms easily and quickly.

[0003]

However, in the above-mentioned prior art, the spring receiving portion is displaced from the spring receiving position to the retracted position when a grain culm is generated between the endless rotating chain and the holding rail. By doing so, although the biasing force of the holding rail toward the endless rotating chain can be weakened, the rail base remains close to the endless rotating chain so as to face the endless rotating chain. The holding rail that has been displaced backwards toward the rail base side is still in a state of facing and adjoining the endless turning chain, so insert the hand through the narrow gap between the pulling devices to make the endless turning chain and the holding rail. When removing the harvested grain culm that was clogged between the rails, the rail base and the holding rail interfered with each other, and it became difficult to remove the grain culm.

An object of the present invention is to make it possible to remove jammed culms in a holding and conveying mechanism more easily and quickly.

[0005]

In order to achieve the above object, in the invention according to claim 1 of the present invention, a planted culm is used.
Do not gather the raising device that causes
Auxiliary transport device that transports backwards and gathers left and right
From the standing posture after gathering the harvested culms to the left and right center
Supply to the thresher while gradually changing to a sideways posture
The merging / conveying unit surrounded by the supplying and conveying device for conveying
Towards an endless rotating chain with a protrusion for transport, the endless rotation
Spring-biased to hold the harvested culm with the dynamic chain
In a holding rail supporting structure of a holding and conveying mechanism arranged to support the held holding rail, a rail base for slidably supporting the holding rail in a perspective direction in a state of facing the endless rotating chain, A pedestal that fixes and supports the rail pedestal, a holding position where the holding rail is close to the endless turning chain, and a retracting position where the holding rail is separated from the endless turning chain are provided with symmetrical side surfaces of the support base. A fixed guide member having a pair of guide surfaces for sliding contact, and a fixture for fixing the support base to the fixed guide member at the holding position by tightening in the vertical direction, and the upper end side of the support base is the rail base. Penetrate through
And the operating part of the fixture is located on the upper end of the support base.
It is configured so that it is placed in the confluent transport section in the state of being placed.
It was

[Operation] According to the invention described in claim 1, when the grain culm is clogged between the endless rotating chain and the holding rail, the fixing tool is released to hold the support base. By displacing from the position to the retracted position,
The holding rail together with the support base can be separated from the endless rotation chain together with the rail base. As a result, it is possible to easily and quickly remove the cultivated culm, which is jammed between the endless rotation chain and the holding rail, without inconvenience that the rail base or the holding rail interferes.

Further, if the holding rail together with the support base is configured to be separated from the endless rotation chain together with the rail base, the holding rail can be set to a predetermined holding posture when the support base is fixed again at the holding position. However, in the invention according to claim 1, the guide surface of the fixed guide member slides and guides the symmetrical side surface of the support base between the holding position and the retracted position. Therefore, the holding rail is displaced together with the support base between the holding position and the retracted position while maintaining a predetermined holding posture with respect to the endless rotation chain. With this, when removing the jammed culms, the support rail together with the holding rails are separated from the endless rotation chain together with the rail base, but after removing the jammed culms,
By displacing the support base from the retracted position to the holding position and performing the fixing operation of the fixture, the holding rail can be brought close to the endless rotation chain in a predetermined holding posture.

By the way, for example, a rail base is mounted on a support base.
Place it so that the operation part of the fixture is on the rail base.
If this is set, for example, bolts and nuts will be
When used, the bolt head or nut
When using a tool such as a spanner to rotate the
The hand that holds the tool when the operation part of the fixture is located on the base.
Easily contact the rail base, and as a result, hold the support base
Fixing operation or fixing solution of the fixture while it is positioned at
There is the inconvenience that it becomes difficult to perform the removal operation.
According to the invention of claim 1, the operation of the rail base and the fixture is performed.
The upper end of the support was passed through the rail base between Sakube
Since there will be a difference in height as much as
For example, even if bolts and nuts are used, the operation part
Use a tool such as a wrench to tighten the bolt head and nut
The hand holding the tool touches the rail base when rotating
As a result, the support base is placed in the holding position.
The fixing operation or the unlocking operation of the fixture with the
It will be easier to do.

[Effect] Therefore, by separating the gripping rail together with the support base from the endless rotation chain together with the rail base, it is possible to more easily and quickly remove the jammed grain culm in the gripping and conveying mechanism, and to remove the jammed grain culm. Ri Na <br/> to the clamping rail to be performed can be easily performed and quickly fixed in the support base of the support position in a state set to a predetermined clamping position after removal, addition, clogging of the clamping transport mechanism culms When removing
It is now possible to improve the operability of the fixture that is operated.
It was

In the invention according to claim 2 of the present invention,
In the invention according to claim 1 , the fixed guide member is made of a sheet metal material in which a guide groove having the pair of guide surfaces is press-molded.

[Operation] According to the second aspect of the invention, since the fixed guide member can be formed of a single sheet metal material, for example, the fixed guide member is formed with a guide surface on the base member connected to the fixed frame. The number of parts can be reduced as compared with the case where the guide members and the like are connected to each other, which facilitates the management of parts and simplifies the structure.

[Effect] Therefore, it becomes possible to more easily and quickly remove the jammed grain culm in the holding and conveying mechanism, and to facilitate the management of parts and the simplification of the configuration.

According to the invention of claim 3 of the present invention,
In the invention according to any one of claims 1 and 2 , a bolt penetrating the rail base with respect to the support base and penetrating the support base and the rail base along a sliding movement direction of the sandwiching rail. I fixed it with.

[Operation] For example, when the rail base is fixed to the support base with bolts penetrating the support base and the rail base along a direction orthogonal to the sliding movement direction of the holding rail, endless rotation is achieved. If a debris jam occurs between the chain and the holding rail, causing a pressing force that displaces the rail base along the sliding movement direction of the holding rail against the support base, the pressing force is applied to the bolt. Since it acts as a shearing force to the rail, it is necessary to adopt a bolt having a large diameter having sufficient strength to withstand the shearing force as the bolt for fixing the rail base to the support base. according to the third aspect of the invention, since the pressing force is to act as a compressive force on the bolt, as a bolt for fixing the rail base to the support base, the pressing force It is possible to adopt a small diameter in comparison with the case that acts as a shear force on the bolts.

[Effects] Therefore, the jammed grain culm in the holding and conveying mechanism can be removed more easily and quickly, and the strength characteristics of the bolt are taken into consideration to increase the manufacturing cost due to unnecessary increase in strength. Can be prevented.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire side surface of a self-removing combine. This combine has four rows of planted grain culm at the front of a traveling machine body 1 having a pair of left and right crawler type traveling devices 1A. The pretreatment unit 2 for cutting and transporting the shavings to the rear is swingably connected around the axis P1 in the left-right direction, and the threshing process is performed on the harvested culm held and conveyed by the feed chain 3A to the traveling machine body 1. In addition to the above, the threshing device 3 that performs a sorting process on the processed products after the threshing process, the grain tank 4 that stores the grains after the screening process, and the like are mounted, and thus it is configured for four-row cutting.

As shown in FIGS. 1 and 2, the preprocessing unit 2
Is a weeding tool 5 that acts on the plant base side of the planted culm to weed it, a raising device 6 that causes the planted grain culm to be weeded, and cuts the planted side of the planted culm that has been planted. A clipper type mowing device 7, an auxiliary carrying device 8 that conveys the cut planted culms (cutting culms) that have been cut back to the left and right, and a slashed culm collected to the left and right in the center of the left and right. The feeding / conveying device 9 that feeds and conveys toward the threshing device 3 while gradually changing from the standing posture to the sideways posture later, and the cutting frame 10 as a fixed frame that supports them are configured.

The auxiliary transporting device 8 includes a rotary belt mechanism 8A having four projections for locking and transporting the tips of the cut stalks to the left and right while gathering them together, and the root side of the stalks for the cut stalks. It is configured by four packers 8B that are conveyed to the rear while being gathered to the left and right. Supply transport device 9
Is a left and right locking transport mechanism 9A that locks and transports the cutting tips of the harvested grain culms transported by the auxiliary transporting device 8 toward the rear while gathering the tip side of the harvested grain culm in the left-right center, and the harvested grain culm transported by the auxiliary transporting device 8. The left and right first holding / conveying mechanisms 9B that gather and convey the rear side of the stocks to the left / right center, and the left and right first holding / conveying mechanisms 9B collect the center of the harvested culm on the left and right sides. Second holding and conveying mechanism 9C that holds and conveys the left side toward the left rear, and the threshing device 3 that receives the stock side of the harvested culm conveyed by the second holding and conveying mechanism 9C.
Auxiliary holding and conveying mechanism 9 for supplying to the feed chain 3A of
D, etc. First holding and conveying mechanism 9
B, second holding and conveying mechanism 9C, and auxiliary holding and conveying mechanism 9D
Is an endless rotating chain 11 with a protrusion and an endless rotating chain 11 supported by the mowing frame 10, respectively.
Endless rotating chain 1 so as to hold the harvested culm between
The holding rail 12 is biased to the first side by a spring, and the like. Incidentally, the second holding and conveying mechanism 9C is provided so as to be swingable around the axis P2 set on the front end side thereof, and by the swinging operation, the rear end of the auxiliary holding and conveying mechanism 9D is transferred to the grain culm. By changing the position, the handling depth of the harvested culm in the threshing device 3 can be adjusted.

As shown in FIGS. 3 to 7, in the left and right first holding and conveying mechanisms 9B, the holding rail 12 is provided with two support rods 12A extending from the side of the endless rotating chain 11 thereof. In order to be slidable in the perspective direction while facing the endless rotating chain 11, it is supported by a rail base 13 having a substantially U-shape in side view, which is provided at a front portion thereof, and two supporting rods. A spring 14 interposed between 12A and the rail base 13 holds and biases the endless rotating chain 11 side. The rail base 13 is provided on the upper end side of the support base 15 penetrating the upper surface of the rail base 13.
Rail base 13 and support base 1 along the slide movement direction of 2
Two bolts 16 penetrating 5 and those bolts 1
It is fixed by a nut 17 that is screwed onto the screw 6. The support base 15 is made of aluminum die casting formed in a substantially square pole shape, and is mounted and supported by a fixed guide member 18 welded to a support member 10A of the mowing frame 10 that supports the auxiliary transport device 8. The fixed guide member 18 is the holding rail 12
In the direction along the sliding movement direction of the holding rails 12 on each of the left and right support bases 15 over the holding position where the holding rail 12 is close to the endless turning chain 11 and the retracting position where the holding rail 12 is separated from the endless turning chain 11. Symmetrical side 15
Guide groove 1 provided with a pair of guide surfaces 18a for slidingly guiding a
8A is composed of a single sheet metal material that is press-molded, which makes it easier to manage the parts and simplify the structure as compared with the case where the fixed guide member 18 is composed of a plurality of parts. It has become. The fixture 19 for fixing the support base 15 to the fixed guide member 18 at the holding position includes two bolts 19A penetrating the support base 15 and the fixed guide member 18 in the up-down direction, and screws for the bolts 19A. A mating nut 19B is used. The bolt holes 18b for mounting the support base 15 formed in the guide groove 18A of the fixed guide member 18 are provided in the support base 1
5, the bolt 19A is formed in a long hole that allows the bolt 19A to move between the holding position and the retracted position.

With the above construction, when a grain stalk is jammed between the endless rotating chain 11 and the sandwiching rail 12 in the left and right first sandwiching and conveying mechanism 9B, the hand is pulled from the gap between the pulling devices 6 or the like. Insert it with a tool such as a spanner,
By rotating the head of the bolt 19A and the nut 19B that serve as the operating portion 19a of the fixture 19 and releasing the fixation of the support base 15 at the held position, the support base 15 is displaced from the held position to the retracted position. In addition, the holding rail 12 can be separated from the endless rotation chain 11 together with the rail base 13 in accordance with this displacement, and thus the holding rail 12 and the rail base 13 are an obstacle. It is possible to easily and quickly remove the cut culm that is jammed between the endless rotating chain 11 and the holding rail 12 with a hand that is inserted through the gap between the raising devices 6 without inviting.

The guide surface 18a of the fixed guide member 18
However, by slidingly guiding the symmetrical side surface 15a of the support base 15 between the holding position and the retracted position, the support rail 15 is held in a state where the holding rail 12 maintains a predetermined holding posture with respect to the endless rotation chain 11. Since it is displaced between the holding position and the retracted position together with it, when removing the jammed grain culms in the first left and right first holding and conveying mechanism 9B, the holding rail 12 together with the holding rail 12 is supported.
After removing the jammed grain culms while separating them from the endless rotation chain 11 together with 3, the support base 15 is displaced from the retracted position to the sandwiched position, and the bolt 19A and the nut 1
Only by fixing with 9B, the holding rail 12 can be installed and fixed in a state where the holding rail 12 is set in a predetermined holding posture and close to the endless rotating chain 11.

Moreover, the rail base 13 is different from the support base 15.
And two bolts 16 penetrating the rail base 13 and the support base 15 along the sliding movement direction of the holding rail 12,
By fixing the nuts 17 that are screwed onto the bolts 16, the rails are supported relative to the support base 15 when grain jamming occurs between the endless rotating chain 11 and the holding rails 12. Even if a pressing force that displaces the platform 13 along the sliding movement direction of the holding rail 12 acts, the pressing force acts as a compressive force on the bolt 16, so that the rail platform 13 is attached to the support platform 15.
As the bolt 16 for fixing the
The gripping rail 12 acts as a shearing force on the 6
Rail stand 1 along the direction orthogonal to the slide movement direction
3 has a small diameter as compared with the case where the support 3 and the support base 15 are penetrated, but it is possible to ensure sufficient strength to withstand the pressing force.

Further, with respect to the support base 15, the rail base 13
Is fixed with the upper end side of the support base 15 penetrating the rail base 13, and the support base 15 is fixed to the fixed guide member 1.
As the fixture 19 which is fixed at the holding position with respect to 8, the two bolts 19A which vertically penetrate the support base 15 and the fixed guide member 18 and the nut 19B which is screwed to the bolts 19A are adopted. Rail stand 13
The operation portion 19 of the fixture 19 is attached to the upper end of the support base 15 that penetrates through the
The nut 19B (or the head of the bolt 19A) that is a is positioned so that the rail base 13
Since there is a height difference between the nut 19B and the nut 19B by the amount that the upper end side of the support base 15 is penetrated by the rail base 13, the nut 19B is wrenched with a spanner between the pulling devices 6 by hand. It is possible to reduce the possibility that the hand holding the tool will come into contact with the rail base 13 when the tool 19 is rotated using a tool such as the one described above. Support base 15 for rotating operation
It is possible to easily perform the fixing operation and the fixing releasing operation at the holding position.

As shown in FIGS. 2 and 4, the holding rail 1
2 is a mowing frame 10 that supports the rotating belt mechanism 8A and the packer 8B on the left and right center sides of the auxiliary transport device 8.
In order to prevent the cutting grain culm from wrapping around the support pipe 10B, the tip end side thereof is extended to form the grain culm transport path of the auxiliary transporting device 8 toward the front end of the corresponding packer 8B. . Further, as shown in FIGS. 5 and 7, the bolt holes 15b for mounting the rail base 13 formed in the support base 15 allow the height position of the holding rail 12 with respect to the endless rotation chain 11 to be adjusted. It is formed as a vertically oriented long hole, so that the height position of the holding rail 12 with respect to the endless rotating chain 11 can be adjusted to a height position suitable for holding and conveying, regardless of some manufacturing errors or assembly errors. It can be set to.

Reference numeral 20 in FIGS. 5 and 7 is a washer for receiving the heads (or two nuts 19B) of the two bolts 19A, which are the fixtures 19, on the fixed guide member 18 side. An engaging claw 20 </ b> A is formed in a central portion of 20 so as to be bent upward so as to position the washer 20 with respect to the support base 15 and the fixed guide member 18 by being engaged with the support base 15.

[Other Embodiments] Other embodiments of the present invention will be described below.
Are listed. As a combine to which the present invention is applied
May be for five-row cutting or six-row cutting
Yes.   As the support base 15, a top plate and a bottom plate are attached to each pipe material.
Formed into a substantially square column shape by welding
Also, by welding multiple flat plate materials, it has an approximately square pillar shape.
You may make it employ | adopt the thing formed in. In addition,
The shape of the holding table 15 is similar to that of the pair of fixed guide members 18.
Of the holding rail 12 which is slidably guided by the guide surface 18a.
It has a symmetric side surface 15a along the sliding movement direction.
Various modifications are possible as long as they are used.   Fixed guide
By welding a plurality of flat plate materials as the member 18,
A pair of guides for slidingly guiding the symmetrical side surfaces 15a of the support base 15.
What is formed so as to have the surface 18a is adopted.
You may do it.   A washer 20 and a fixture 19
Weld two bolts 19A or two nuts 19B
Of the fixing operation or the fixing release operation of the fixing tool 19
At that time, the bolt 19A or the nut 19B will be stopped.
By inserting it through the gap between the pulling devices 6
A fixed guy in the holding position by operating the fixture 19.
For fixing the support base 15 to the support member 18 and releasing the fixation,
It may be made easier and faster.   
As the fixture 19, a support base 15 and a fixed guide member 18
Bolt 19A that penetrates the
A nut 19B that is screwed into the socket 19A,
IIs aSupport 15 and fixed guide member
18 is used to hold and fix
You may do it.

[Brief description of drawings]

1] Overall side view of combine

FIG. 2 is a schematic plan view of the first half of the combine showing the configuration of the pretreatment unit.

FIG. 3 is a partially cutaway side view of a main part showing a configuration of a holding rail support structure.

FIG. 4 is a plan view of a main part showing a configuration of a holding rail supporting structure.

FIG. 5 is an exploded perspective view showing a configuration of a holding rail supporting structure.

FIG. 6 is a cross-sectional plan view of essential parts showing the configuration of a holding rail supporting structure.

FIG. 7 is a vertical cross-sectional side view of a main portion showing the configuration of a holding rail support structure.

[Explanation of Codes] 3 Threshing Device 6 Lifting Device 8 Auxiliary Conveying Device 9 Supply Conveying Device 9B Holding Conveying Mechanism 10 Fixed Frame 11 Endless Rotating Chain 12 Holding Rail 13 Rail Stand 15 Support 15a Symmetrical Side 16 Bolt 18 Fixing Guide Member 18A Guide groove 18a Guide surface 19 Fixture 19a Operation part

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-9-224454 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01D 61/00 A01D 57/00

Claims (3)

(57) [Claims] 1. A raising device for causing a planted culm and a mowing device.
Auxiliary transport device that transports the culms to the rear while gathering them to the left and right
And the harvested culms collected on the left and right sides
After collecting, gradually change from the standing posture to the sideways posture.
Surrounded by a feeding and conveying device that feeds and conveys to the threshing device
The endless rotating chute with a protrusion for merging / conveying
The harvested culm to and from the endless rotating chain.
Supports a spring-loaded gripping rail to hold it.
A holding rail support structure of a holding and transporting mechanism arranged as described above, wherein the holding rail supports the holding rail slidably in a perspective direction in a state of facing the endless rotation chain,
A symmetric side surface of the support base over a support base that fixedly supports the rail base, a holding position where the holding rail is close to the endless rotating chain, and a retracting position where the holding rail is separated from the endless rotating chain. Fixed guide member with a pair of guide surfaces for sliding contact and vertical tightening
And a fixture for fixing in the support position the support table to the fixed guide member by only the upper end side of the support base is pre
Note that the rail base is penetrated, and the above-mentioned fixed
It is installed in the confluent transport section with the operation section of the fixed tool positioned.
The holding rail support structure of the holding and conveying mechanism configured as described above . 2. The holding rail support structure for a holding and conveying mechanism according to claim 1, wherein the fixed guide member is formed of a sheet metal material in which a guide groove having the pair of guide surfaces is press-molded. 3. The rail base is fixed to the support base by a bolt penetrating the support base and the rail base along a sliding movement direction of the holding rail. A holding rail support structure for the holding and conveying mechanism described.