JP3245499B2 - Combine frame structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine frame structure.

[0002]

Conventionally, as a frame structure of combine, for example, as disclosed in JP-A-3-19615, pair forming a along the longitudinal direction to constitute a part of the body frame elongated the front and rear direction frame, and a fixed track frame vertically movable linking the movable track frame by lifting the link arms in the crawler traveling apparatus, the structure connected through the connecting member in a state that had Hedata apart vertically Things are known.

[0003]

By the way, in the above-mentioned conventional structure, the fixed track frame of the pair of right and left crawler traveling devices and the front-rearward frame are connected by a connecting member to form a frame in an arch shape in a front view. With this configuration, the fixed track frame and the pivotal link of the lifting link arm are arranged laterally outwardly displaced from the front-rearward frame . For this reason, in the crawler traveling device, a gap is formed between the edge of the crawler belt in the width direction of the crawler belt and the front- rearward frame. etc. that still is better in the fuselage of the crawler belt edge portion and a front and rear-facing-off
The sludge falls from the gap between the frame and the sludge, and the sludge and the like grows on the pivot portion of the lifting link arm and the fixed track frame, and the sludge grows as the sludge drops repeatedly. Thus, there is a problem that the swing of the arm is adversely affected, and the fixed track frame and the like are soiled. The present invention has been made in view of the above circumstances, and is intended to prevent a mud or the like from a crawler traveling device from adhering to a track frame or the like connected to a front-rear frame and to reduce the weight of a combine. The purpose is to provide a frame structure.

[0004]

SUMMARY OF THE INVENTION A frame structure of a combine according to the present invention is a machine frame equipped with a threshing device.
Is supported by a pair of left and right crawler traveling devices,
Track frame of crawler traveling device, link device
Supported on the body frame via the supporting mechanism provided,
The support mechanism can be swung up and down around the horizontal axis along the left and right direction
And a pair of front and rear link arms configured in
A linking part is provided at one end of the link arm having the horizontal axis.
And a fixed frame pivoted through
The other end of the descending link arm is pivoted to the track frame
The aircraft frame, a pair of left and right
And the left and right front-to-back frames
Constituted by a lateral frame along come YokoMuko, fixed off
Position the upper end of the frame under the forward-facing frame of the fuselage frame.
It is characterized in that it is connected in a state of directly abutting on the surface . The operation and effect of this characteristic configuration are as follows.

[0005]

[Action] That is, a pair of right and left front and rear elongate in the longitudinal direction
The upper surface of the fixed frame, which is elongated in the front-rear direction, is connected directly to the lower surface of the orientation frame in a state where the upper surface of the fixed frame is directly abutted. Since it is provided, the pivoting portion of the elevating link arm and the fixed frame will be provided in a state where it is hardly displaced in the left-right direction with respect to the front-rear frame , whereby the right and left crawler traveling devices are The crawler belt is disposed closer to the front-rear frame than before, so that the crawler belt can be configured such that there is almost no gap between the edge of the crawler belt and the front-rear frame . Further, a connecting member for connecting the conventional front-rear frame and the fixed track frame is not required.

[0006]

Therefore, according to the present invention, the crawler belt can be configured such that there is almost no gap between the edge of the crawler belt and the front-rearward frame , so that the crawler belt adheres to the crawler belt during traveling on a field or the like. and that the mud and the like fall from between the person in the aircraft I edge portion and the front and rear direction frame of the crawler belt is prevented, the front and rear direction frame, the fixed frame, and, pivot supports of the lifting link arm viewed by being disposed in substantially the same location in order to could be as mud does not get on the pivot supports of the fixed frame and the lifting link arms, or fixed frame or the like soiled with mud, the operation of the lift link arm It is possible to suppress the problem that the mud or the like has an adverse effect, and to obtain the advantage that the frame structure can be reduced in weight because there is no connecting member conventionally used.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a combine. This combine was supported by a pair of left and right crawler traveling devices 1 and 1.
The machine frame 2 is equipped with a pre-cutting processing unit 3, a threshing device 4, a grain tank 5, a boarding operation unit 6, and the like.

[0008] Then, as shown in FIG. 5, the body frame
Reference numeral 2 denotes four long front-rear frames 2A, 2A, 2B, 2B which are arranged side by side at predetermined intervals on the left and right and are arranged in a state of being arranged at predetermined intervals on the left and right. The longitudinal frames 2A, 2A, 2B, 2B are connected to each other by forming a long frame 2C along the horizontal direction.
連結 and so on. It should be noted that only the fuselage frame 2 at the right front portion of the fuselage where the boarding operation section 6 and the like are disposed is configured to extend forward. Immediately after the front extending shape, mounting seats 8 on which the engine 7 is mounted are distributed to the front, rear, left and right four places and are disposed on the horizontal frames 2C, 2C. These horizontal frames 2
Among the C and 2C, the rearward frame 2C is extended between a pair of right and left front-rear frames 2A, 2A at the center, and is erected between the extended end and the front-rear frames 2A, 2A . The plate body 9 is erected and connected to the horizontal frame 2D. A horizontal side portion of the plate body 9 and an end horizontal side portion of the rearward frame 2C are connected to a pressure oil supply / discharge hose 11 from the control valve 10 at a position below the riding operation section 6.
It is set at the location of ‥. The pressure oil supply / discharge hose 11 # is connected to the crawler traveling devices 1, 1 as shown in FIG.
Are connected to hydraulic cylinders 12 for raising and lowering.

As shown in FIGS. 2 and 3, each of the pair of left and right front-facing frames 2A, 2A is made of a square pipe, and is provided on the lower surface of each front-back frame 2A, 2A in the front-back direction. The long fixed frames 13 made of square pipes are welded and connected along the upper surfaces thereof in a state where the upper surfaces thereof are directly abutted. Then, each fixed frame 13, 1
3 and the track frame 1 of the crawler traveling devices 1 and 1
A pair of front and rear link arms 1 extending between 4 and 14
5 and 15 are installed. Link arm 15 for each lift
Are pivotally attached to the track frame 14 and the fixed frame 13 so as to be relatively swingable around the horizontal axes P1 and P2. Fixed frame 1 of link arm 15 for lifting
A description will be given of the pivoting portion 16 with respect to the upper link 3.
7 is integrally fixed, and a cylindrical boss 18 for internally fitting the pin 17 in the direction of the horizontal axis P2 is attached to the fixed frame 13.
Is held at the position of the lower surface. The cylindrical boss 18 is fixed by welding to a pair of left and right support plates 19, 19 fixed to the left and right side surfaces of the fixed frame 13. An operation arm 24 integrally fixed to the inner end of the inside of the body of the pin 17 fitted in the cylinder boss 18 provided at the rear is provided on the cylinder rod 12a of the hydraulic cylinder 12 described above.
It is pivotably mounted around the horizontal axis P3. Both ends of the operation rod 25 are pivotally mounted over the operation arm 24 and the operation arm 24 integrally fixed to the inside of the body of the pin 17 fitted inside the cylindrical boss 18 provided in the front. The operation arms 24, 24, the operation rod 25, the pins 17, 17, the elevating link arm 15,
The fixed link 13, the track frame 14, and the fixed frame 13 constitute a quadruple link mechanism. Therefore, the hydraulic cylinder 12
Is driven to expand and contract to move the lifting link arm 15 about the horizontal axis P2, thereby the fixed frame 1
The relative position between the track frame 3 and the track frame 14 can be changed in the perspective direction, that is, in the height direction. As shown in FIG. 2, the rear end of the fixed frame 13 has a portion that extends rearward from the pivotal attachment portion 16 of the link arm 15 for raising and lowering the rear girdle. But forward and backward
Since the frame 2A is supported, reinforcement is provided as compared with the frame without the rear extending portion 13a, and the durability of the front-facing frame 2A is increased. The fixed frame 13 and the lifting link arm 1
5 constitutes a support mechanism having a link mechanism.

[0010] As shown in FIG.
At the front ends of the supporting plates 19, 19, which support the horn, a laterally angled pipe 20 is connected so as to extend outward, and at the end of the laterally angled pipe 20, the crawler belt 1A of the crawler traveling device 1 is attached. A support member 22 for supporting a shaft of a carrier roller 21 for restricting the carrier roller 21 from being slackened downward is connected by bolt connection. Since the support member 22 is bolted to the horizontal square pipe 20, it is detachable, and when the crawler belt 1A is attached and detached, the carrier roller 21 is removed.
The position change range of the tension ring 23 can be reduced, and the labor for changing the position and attaching and detaching the crawler belt 1A can be reduced.

[Alternative Embodiment] In the above embodiment, the structure of the pivotal linking portion of the lifting link arm with respect to the fixed frame is such that the pin of the lifting link arm is fitted inside the cylindrical boss fixed to the fixed frame. However, the pin provided on the fixed frame may be internally fitted into the cylindrical boss provided on the elevating link arm.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a combine.

FIG. 2 is a side view showing a crawler traveling device, a body frame, and the like.

FIG. 3 is a longitudinal sectional front view showing a crawler traveling device, a body frame, and a link arm for elevating;

FIG. 4 is a longitudinal sectional front view showing a carrier roller and its mounting structure.

FIG. 5 is a plan view showing a part of a frame structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Crawler running device 2A Front-back direction frame 13 Fixed frame 14 Track frame 15 Elevating link arm

Claims (1)

(57) [Claims] 1. An airframe for mounting a threshing device (4)
(2) is replaced by a pair of left and right crawler traveling devices (1), (1)
And the crawler traveling device (1),
Link track frames (14) and (14) of (1)
Frame via a support mechanism with a
(2), and the support mechanism is moved around a horizontal axis (P2) along the left-right direction.
A pair of front and rear link arms that are vertically swingable
(15), (15) and the link arm (1
5) and (15) on one end side provided with the horizontal axis core (P2).
The fixed frame (1) pivoted via the pivot (16)
3) and (13), and the lifting phosphorus
Arm (15), the other end of the
Frames (14), (14), and the body frame (2) is attached to a pair of left and right
Front and rear frames (2A) and (2A)
To connect the rearward frames (2A) and (2A) sideways
It has a horizontal frame (2C) and (2C).
And the upper end faces of the fixed frames (13), (13)
Front and rear frame (2A) of the body frame (2),
(2A) and directly connected to the lower surface
Frame structure of that combined.