JP3128692B2 - Threshing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing machine, such as a combine, for threshing cereal stalks that have been cut at a cutting section.

[0002]

2. Description of the Related Art Conventionally, as shown in JP-A-61-12213, a handle cylinder upper cover and a clamping rod are rotatable upward about a horizontal axis provided on the opposite side of a feed chain on one side of a threshing unit. There is a technology to install it.

[0003]

According to the above prior art, when the maintenance of the inside of the threshing unit is performed, the feed chain is rotated downward and opened to the lower side of the threshing unit, so that it is not necessary to remove the feed chain. , Maintenance inspection of the handling cylinder or
Must make such exchange of receiving network from the feed chain upper space, the there is troublesome to the operator to work close to the feed chain over the threshing unit, back to the original position to lift the feed chain at the end of work It is necessary to lift the heavy feed chain, and there is a problem that the feed chain falls by its own weight due to damage to the fixed part.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a threshing machine in which a handle cylinder upper cover and a clamping rod are rotatably mounted upward about a horizontal axis provided on the opposite side of the feed chain on one side of the threshing unit. , The feed chain and handle cylinder side cover are attached so that they can rotate freely about the vertical axis, and the handle cylinder is installed inside.
The handling cylinder side cover which forms the handling room to
Is opened and closed in the vertical axis Rutotomoni, the vertical axis outboard projecting the other side of the bearing member for fixing the one side to the threshing unit side is provided, before inboard threshing body nearer the feed chain
The feed chain is rotated horizontally to open the side of the threshing section, so there is no burden of lowering and raising the feed chain as in the past, and the feed chain is placed on the side of the threshing section. together to obtain lightly performed than the conventional operation of separating or joining, as in the conventional no troublesome to perform such receiving network switching to the feed chain across, is regulated by the feed chain operator action at threshing portion side portion The rotation of the upper cover of the handle around the horizontal axis opposite to the feed chain and the horizontal rotation of the feed chain and the side cover of the handle allow the feed chain mounting side and Can be greatly opened, and the feed chain and the light
Is the working area on the threshing side by rotating the handle side cover integrally?
Easily move in the al away direction obtained, resulting aims to facilitate the simplification of improving workability and handling operations, such as desorption and replacement or cleaning of the threshing drum or receiving network, also secure the vertical axis thresher side cover side in the so obtained aim the resultant was linked to insert or remove the vertical direction relative to the bearing member, to facilitate such detachment operability improvement of the feed chain and thresher side cover further threshing unit side
Of the horizontal projecting a feed Cheng machine inside of the bearing member
By disposing the vertical axis , the separation distance between the feed chain at the open position and the side of the threshing section can be easily secured, and the horizontal projection of the bearing member allows the vertical axis mounting position to be limited to the high rigidity position of the threshing section without being limited. It can be easily supported.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an explanatory side view of a feed chain portion, FIG. 2 is an overall side view of a combine, and FIG. 3 is a plan view of the same, where (1) is a track frame on which a traveling crawler (2) is mounted, and (3) Is a machine frame installed on the truck frame (1), (4) is a threshing unit in which a feed chain (5) is stretched to the left and a handling drum (6) and a processing drum (7) are built in, (8). ) Is a mowing section provided with a cutting blade and a grain culm transport mechanism, (9) is a straw processing section that faces the end of a straw chain (10), (11) is a driver's seat (12) and an operation section (1).
A driver's cab provided with 3), an engine section (14) provided at the rear right side of the machine chassis (3) and an engine (15) provided therein;
A grain tank (16) is disposed in front of the engine unit (14) to store grains from the threshing unit (4), and (17) takes out grains in the grain tank (16) to the outside. It is a discharge auger and is configured to perform continuous harvesting and threshing work.

As shown in FIGS. 4 to 6, an upper wall cover (18) of the threshing unit (4) is provided so as to be openable upward, and the feed chain (5) is opened to the left of the threshing unit (4). The support rod (2) is provided on the support (19) of the cover (18) via a frame (20).
1) is connected and supported, and the base end of the cover (18) is supported on a fixed bracket (22) on the threshing body side via a fulcrum shaft (23) so as to be openable and closable. In addition, (24) is a clamping rod cover which covers the outside of the clamping rod (21), and (25) is a lock member for closing and holding the cover (18).

A drive sprocket (26), which is a front rotating body, is provided at the front end of the lower chain rail (27), and is provided at the rear ends of the lower and upper chain rails (27) and (28). And a driven sprocket (30) as a rear rotating body, and a feed chain (5) is stretched over each of the sprockets (26) and (30). ) And the pivot plate (2)
9) An upper and lower horizontal pivot shaft (33) (3) is attached to a lower pivot plate (32) which is connected and fixed downward via a column (31).
4) are fixedly mounted, and the feed chain (5) is supported on the fixing brackets (35) and (36) on the threshing body side via the fulcrum shafts (33) and (34) so as to be openable to the side. are doing.

Further, the handle rail side cover (38) which presses the lower end to the outer end (37a) of the crimping net (37) under the handle cylinder (6) is attached to the chain rail (27).
(28) via a mounting frame (39) (40) and a tension roller (41) and a sprocket (42) of the feed chain (5) via a guide plate (42a). (27), when the feed chain (5) is opened to the side, the side cover (38), the tension roller (41), and the sprocket (42) are integrally rotated sideways. I have.

When the feed chain (5) is closed, the locking pin (43) of the front plate (38a) of the side cover (38) is connected to the lock plate (4) on the threshing front plate (44).
5), the lock plate (45) is held on the front side plate (44) via the support shaft (46), the stopper pin (47) and the spring (48), and the side cover ( 38) When the pin (43) is closed, the pin (43) abuts on a guide lever (49) fixed to the lock plate (45),
The lock plate (45) is pushed downward against the spring (48), and the pin (43) engages with the pin engagement groove (50) of the lock plate (45), and the side cover (38) and the feeder The chain (5) is configured to be fixedly held in the closed position.

A drive case (51) fixed to the main body of the threshing unit (4) is provided with a drive shaft (52) for driving the feed chain (5).
2) is connected to an input shaft (53) via a gear (54), and is connected to a sprocket shaft (55) of the drive sprocket (26) via a limit clutch (56). Are connected and connected to each other to form a drive transmission system using the clutch claws of the limit clutch (56), thereby reducing the number of parts and improving durability as compared with the conventional pin connection system, and transporting the grain hulls for threshing. A feed chain (5) is provided so as to be openable to the side of the threshing unit (4), and the feed chain (5) is rotatable about a horizontal rotation fulcrum shaft (33) (34) which is a vertical axis. And a drive shaft (52) which is a drive unit on the machine side.
A sprocket shaft (55), which is a transmission connection portion detachably connected to the shaft, is provided on a side remote from the horizontal rotation fulcrum shafts (33) and (34).

Further, the fulcrum shafts (33) and (34) supporting the rear end side of the feed chain (5) are located at a position rearward from the sprocket shaft (57) of the driven sprocket (30) by a dimension (t), It is arranged closer to the threshing body side than the feed chain (5), and when the feed chain (5) is opened, a pivot plate (29) which is the rearmost end of the chain (5).
(32) is designed to prevent the interference between the threshing body and the feed chain (5) while minimizing the amount of entry into the threshing body side of (32) and keeping the overall width of the machine right and left within certain dimensions. In a structure in which a feed chain (5) for transporting grain culm is provided to be openable to the side of the threshing unit (4), a horizontal rotation fulcrum shaft (33) of the feed chain (5) opening to the side of the threshing unit (4). (34) is provided at a position further outward than the sprocket shaft (57) of the sprocket (30) supporting the end of the feed chain (5) and closer to the threshing body than the feed chain (5). .

As is apparent from the above description, the upper wall cover (the upper cover) serving as the upper cover of the handling cylinder is provided around the fulcrum shaft (23) which is the horizontal axis provided on the side opposite to the feed chain (5) on one side of the threshing unit (4). 18) and a threshing machine in which the clamping rod (21) is rotatably mounted on the upper side, the feed chain (5) and the handle cylinder side cover (30) around the horizontal rotation fulcrum shafts (33) and (34) which are the vertical axes. pivotally mounted 38) in the horizontal direction, handling
The handling room in which the torso (6) is installed is a crimp net (3
7) The handle barrel side cover (38) formed together with
(33) (34) around the opened and closed operation Rutotomoni, threshing section (4) fixed bracket (35) is a bearing member for fixing the one side on the side face the horizontal pivot fulcrum outboard projecting the other side of (36) A shaft (33) (34) is provided , and the feed chain is provided .
The vertical axis (33) closer to the threshing body inside the machine than (5)
(34) Ru is disposed. And feed chain (5)
Is rotated horizontally to open the side of the threshing unit (4),
There is no burden of lowering and raising the feed chain (5) as in the related art, and the operation of separating or joining the feed chain (5) to the side of the threshing unit (4) can be performed lighter than in the conventional case. There is no need to replace the crimping net (37) over the feed chain (5), and it is possible to eliminate the problem that the action of the worker on the side of the threshing unit (4) is restricted by the feed chain (5). The threshing unit (4) is formed by the upward rotation of the upper wall cover (18) about the fulcrum shaft (23) on the side opposite to (5) and the horizontal rotation of the feed chain (5) and the handle side cover (38). The both sides and the upper part of the feed chain (5) are largely opened, and the vertical axis (33) (34) is used as a fulcrum.
Feed chain (5) and handle side cover lightly in the direction
Rotate (38) together to move away from the work area on the threshing side
The crimping net (3) or crimping net (3)
7) To improve the workability such as attachment and detachment and replacement or cleaning, to simplify the handling operation, and to make the horizontal rotation fulcrum shaft (3
3) The (34) can be fixed to the handle cylinder side cover (38) side so as to be vertically detachably connectable to the fixing brackets (35) and (36), and the feed chain and the handle cylinder side cover (38) can be connected. ), And the fixing brackets (35) (3) on the side of the threshing unit (4).
Horizontal projecting the feed chain 6) (5) the longitudinal axis of the inboard
(33) (34) The distance between the feed chain (5) at the open position and the side of the threshing unit (4) can be ensured by the arrangement , and the horizontal rotation fulcrum is provided by the horizontal projection of the fixed brackets (35) and (36). The shafts (33) and (34) are configured such that they can be supported at a high rigidity position of the threshing unit (4) without any limitation on the mounting position.

This embodiment is constructed as described above, and the rotating fulcrum shafts (33) and (34) for supporting the feed chain (5) in an openable manner are connected to the sprocket shaft (30) of the driven sprocket (30). Since the feed chain (5) is disposed closer to the threshing body side than the feed chain (5) at a position rearward from the feed chain (5) by the dimension (t), the pivot mounting plate (29) ( 32) The margin of entry into the threshing body side at the rear end is minimized, and the safety without any inconvenience such as interference in a state where the entire body width is suppressed to a certain size without extending the feed chain (5) to the outside of the threshing body. Opening work can be performed.

When the feed chain (5) is pivotally opened, the chain rails (27) and (2) are wound with the feed chain (5) wound around the driving sprocket (26).
8), the feed chain (5) can be easily opened and the work efficiency is excellent, and when the feed chain (5) is opened, the handle cylinder side cover (38) is opened. ) Is also drawn out at the same time, and threshing section (4)
The side surface is in an open state, so that inspection and maintenance of the handling room and replacement work of the crimp net (37) can be conveniently performed.

[0015]

As is apparent from the above embodiments, the present invention provides a handle cylinder upper cover (1) around a horizontal axis (23) provided on the side opposite to the feed chain (5) on one side of the threshing unit (4).
8) In a threshing machine in which the pinching rod (21) is rotatably mounted upward, the feed chain (5) and the handle side cover (38) are turned in the horizontal direction around the longitudinal axes (33) and (34). It is installed movably and receives the handling room where the handling cylinder (6) is installed inside.
(37) The handle barrel side cover (38) formed together with
Vertical axis (33) (34) around the Rutotomoni is opened and closed, the threshing section (4) bearing member for fixing the one side on the side surface (35)
(36) The longitudinal axis (33) (34)
And a threshing book on the inboard side of the feed chain (5)
Since the vertical axes (33) and (34) are disposed closer to the body , the feed chain (5) is rotated in the horizontal direction to open the side of the threshing unit (4). There is no burden of lowering and raising (5), and the operation of separating or joining the feed chain (5) to the side of the threshing unit (4) can be performed lighter than before, and the feed chain ( 5) over to the receiving network (3
7) There is no trouble in performing replacement or the like, and it is possible to eliminate the problem that the behavior of the worker on the side of the threshing unit (4) is restricted by the feed chain (5). The feed chain (5) of the threshing unit (4) is rotated by the upward rotation of the handle cylinder upper cover (18) about the horizontal axis (23) and the horizontal rotation of the feed chain (5) and the handle cylinder side cover (38). Both the mounting side and upper part can be widely opened, and the vertical axis (33) (34) can be used as a fulcrum in the horizontal direction.
And the feed chain (5) and the handle cylinder side cover (38)
Rotate together to move away from the work area on the threshing side.
Can move easily, thresher (6) or the simplification of improving workability and handling operations, such as desorption and replacing or cleaning the receiving network (37) can easily be achieved, also the vertical axis (33) (3
4) can be fixed to the handle cylinder side cover (38) side and can be vertically detachably connected to the bearing members (35) and (36), so that the feed chain and the handle cylinder side cover (38) can be connected.
It is possible to easily improve the operation of attaching and detaching the bearings, and furthermore , the horizontal projection of the bearing members (35) and (36) on the side of the threshing unit (4) and the feed chain (5) to the inside of the machine. Vertical axis (3
3) By disposing the (34) , a separation distance between the feed chain (5) at the open position and the side surface of the threshing unit (4) can be easily ensured, and the vertical projection ( 33) (34) It is possible to easily support the threshing unit (4) at the high rigidity position without limiting the mounting position.

[Brief description of the drawings]

FIG. 1 is an explanatory side view of a feed chain unit.

FIG. 2 is an overall side view of the combine.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory sectional view of a threshing unit.

FIG. 5 is an explanatory plan view of a feed chain unit.

FIG. 6 is a partial explanatory view of the same.

[Explanation of symbols]

(4) Threshing section (5) Feed chain (6) Handle cylinder (18) Upper side wall cover (handle cylinder upper cover) (21) Clamping rod (23) Support shaft (horizontal axis) (33) (34) Horizontal rotation Moving fulcrum shaft (vertical axis) (35) (36) Fixed bracket (bearing member) (37) Crimp net (receiving net) (38) Handle body side cover

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-12213 (JP, A) JP-A 52-17746 (JP, U) JP-A 55-75219 (JP, U) JP-A Sho 56- 111633 (JP, U) Actually open sho 59-193231 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01F 12/00-12/10

Claims (1)

(57) [Claims] An upper cover (18) and a clamping rod (21) are pivoted upward about a horizontal axis (23) provided on the side opposite to the feed chain (5) on one side of the threshing unit (4). In the threshing machine that can be freely mounted, the feed chain (5) and the handle cylinder side cover (38) are rotatably mounted in the horizontal direction about the longitudinal axes (33) and (34), and the handle cylinder (6) is provided inside.
The handling cylinder side cover forming a handling room with a receiving net (37)
(38) a longitudinal axis (33) (34) Rutotomoni is opened and closed around, the threshing section (4) bearing members (35) to fix the one side on the side surface the longitudinal axis outboard projecting the other side of (36) (33)
(34), which is more in-flight than the feed chain (5).
A threshing machine characterized in that the vertical axes (33) and (34) are arranged near a side threshing body .