JPH0312625Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a body frame of an agricultural working machine.

Conventional technology The frame of an agricultural machine such as a combine harvester equipped with a crawler running device is structurally important, not only from the viewpoint of strength, stability, safety standards, etc. of the machine body, but also from the viewpoint of ease of mounting the crawler and ease of removing mud puddles, etc. It is preferable to have a layout that takes maintenance aspects into account. Conventionally, the position of the frame is shifted in the width direction of the aircraft in order to prevent the aircraft frame from directly facing the crawler in a lap shape. are often seen.

Problems that the invention aims to solve However, in many large aircraft, the distance between crawler ruts is made as wide as possible from the standpoint of aircraft stability, even if the cruising performance deteriorates to some extent. For this reason, the crawler and the aircraft frame inevitably overlap in position,
Coupled with the fact that the fuselage frame is sized so that it gets clogged in front or behind the crawler, viscous mud mixed with mud, straw, etc. carried by the crawler while traveling in wet fields can become clogged between the crawler and the fuselage frame. The mud may accumulate and adversely affect wet field driving performance, or it may gradually push up onto the aircraft frame and damage various functional parts, such as parts under the engine, electrical parts under the driver's seat, and the fuel tank. Problems that caused damage to parts, etc. often occurred.

Means for Solving the Problems Therefore, the present invention provides an agricultural working machine in which a part of the body frame is wrapped above the crawler traveling device. is provided over approximately the longitudinal length of the crawler so that the surface facing the crawler is a uniform plane, and at least the front side of the plate body in the direction of movement of the aircraft is an upwardly inclined surface from the vicinity directly above the axle of the drive wheel to the end side. This is an attempt to solve the above problem by configuring it so that

Function During wet field work, mud mixed with mud, straw, etc. is carried around by the crawler and tends to get stuck between the machine frame and the crawler. However, the plate body allows the bottom surface of the machine frame to be smooth without any unevenness, and it can easily fit into the crawler. On the other hand, since the flat surface is more closely spaced, the mud carried by the crawler is not pushed up onto the body frame, but is smoothly conveyed in the direction of rotation of the crawler while being sandwiched between the plate and the crawler. Furthermore, by configuring at least the front side of the plate body in the machine traveling direction to be an upwardly sloping surface from the vicinity directly above the axle of the drive wheel to the machine frame end side, the space between the machine frame and the crawler above the end of the crawler is increased. Since there is a flexible groove that gradually expands toward the end of the fuselage frame, mud etc. carried by the crawler can easily escape from the end of the fuselage frame. Clogging with mud etc. is prevented as much as possible.

Embodiment 1 is a fuselage frame of a combine harvester, in which a threshing unit A is mounted on one side of the fuselage frame 1 in the direction of movement of the machine, and a driver's seat 2 is mounted on the front and an engine 3 is mounted on the other side, respectively. Driver seat 2 and engine 3
A grain tank 4 is arranged between them. Although not shown in the figure, engine-related parts and the like are located below the engine 3, and electrical-related parts and the like are located below the driver's seat 2 and are either exposed above the fuselage frame 1 or partially recessed within the fuselage frame 1. They are installed and placed in the same position. 5 is a pre-processing section, and 6 is a post-processing device such as a cutter.

A is a crawler traveling device, and a frame (traveling frame) 7 of the traveling device A is integrally connected to the body frame 1 by a pair of left and right connecting rods (not shown) at the front and rear, respectively. 8 is a drive wheel, 9 is an idler wheel, and a plurality of rolling wheels 10 are supported between these two wheels 8 and 9, and between these wheels there is a wide rubber endless body (a crawler) having a lug 11a on the outer periphery. )11 is hung over the crawler traveling device A, which is suitable for traveling in wet fields.
is configured. As shown in FIGS. 3 to 5, the idler wheel 9 is configured to be able to freely tilt within the range of a vertically long elongated hole 13a provided in the bracket 13. When a strong lateral pressure is applied to the idler wheel 9 through the core claw protrusion 11b of the crawler 11, such as when the crawler 11 runs over a ridge or the like, the idler wheel 9 tilts following the direction of the lateral pressure. In order to
Coupled with the fact that b is provided at a constant pitch,
It is designed to smoothly engage the inclined idler wheel 9 and prevent the crawler from coming off. 8a is an axle of the drive wheel 8, 9a is an axle of the idler wheel 9, and 9b is a crawler tension adjustment device.

By the way, at least one of the front side and the rear side of the surface of the body frame 1 facing the crawler 11 in the direction of movement of the body is an upwardly inclined surface a from the vicinity directly above the axles 8a, 9a of the driving wheels 8 or idler wheels 9 to the end side. It is configured to be. The illustrated one has an inclined surface a extending slightly inward from the virtual vertical lines ₁ and ₂ of each axle 8a and 9a toward the front end or the rear end, respectively.
This inclined surface a allows the driving wheel 8 to
A flexible loop b whose vertical distance gradually increases is formed between the crawler 11 and the body frame 1 in the vicinity of each axle 8a, 9a of the idler wheel 9. Reference numeral 12 denotes a plate such as a steel plate attached to the lower surface of the fuselage frame 1 facing the crawler 11, and the plate 12 has approximately the same width as the crawler 11 and extends over approximately the longitudinal length of the crawler 11. This board 1
2, the lower surface of the fuselage frame 1 has no irregularities and is a uniform flat surface that is closer to the crawler 11. Also, since the plate body 12 serves as a cover to prevent mud, etc. from being pushed up, the mud carried around by the crawler 11 can be This prevents dirt, straw, etc. from staying on the frame 1 or pushing up above the frame 1, and combined with the scraper action of the lug 11a, the mud, etc. is smoothly moved from front to back and from back to front. transportation is now being excluded.

In the above configuration, when working in a field, especially in a wet field, straw waste, etc. trampled by the crawler 11 is carried around by the crawler 11 together with mud, and tends to become entangled in various parts of the aircraft. The muddy soil, etc., is sandwiched between the crawler 11 and the plate 12 attached to the lower surface of the aircraft frame 1.
It is smoothly conveyed in the rotation direction of 1. At this time, the plate body 12 prevents mud and other dirt from being lifted up toward the fuselage frame 1 side and from accumulating on the uneven parts of the frame 1, so that the engine-related parts located below the engine 3 and the engine-related parts below the driver's seat 2 are prevented. There is no possibility of damaging or damaging electrical components and other functional components. In addition, a driving wheel 8 and an idler wheel 9
A flexible slot b is formed between the body frame 1 and the crawler 11 from directly above the wheels 8a, 9a to the end of the body frame, so that the crawler 1
The mud, etc. carried around by 1 will easily escape through this flexible slot b, and therefore, mud, etc. will not get clogged at the end of the frame, unlike conventional products where the end of the fuselage frame is clogged at the end. There is no. Even if mud or the like gets stuck between the fuselage frame 1 and the crawler 11, the dirt that gets stuck when moving forward can be removed by going backwards, and the stuff that gets stuck when going backwards can be easily removed by moving forward. Clogging is prevented as much as possible. Further, since a large gap can be provided between the body frame 1 and the drive wheels 8 and idle wheels 9, the crawler 11 can be attached and detached extremely easily.

Effects of the Invention As described above, the present invention provides an agricultural working machine in which a part of the body frame is wrapped above the crawler traveling device, and a plate body having approximately the same width as the crawler is installed on the side of the body frame facing the crawler. The plate body is provided over approximately the longitudinal length of the plate body, so that the surface facing the crawler is a uniform plane, and at least the front side of the plate body in the direction of movement of the aircraft has an upwardly inclined surface from the vicinity directly above the axle of the drive wheel to the end side. With this structure, the plate body acts as a mud cover that prevents mud from rising up, preventing mud and straw carried by the crawlers from accumulating on the fuselage frame.
This prevents troubles such as damage to various parts such as engine parts and electrical parts caused by being gradually pushed upwards of the aircraft frame, and mud, etc. carried around by the crawler is discharged at the end of the plate body. As a result, clogging with mud or the like between the body frame and the crawler can be prevented as much as possible, and wet field running performance can always be maintained well, and the crawler can be easily attached and detached.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of a combine equipped with the present invention, Fig. 2 is a side view of the main parts, Fig. 3 is an enlarged side view showing the support structure of the idler wheel, and Fig. 4 is the C--C in Fig. 3. The sectional view taken along the line C and FIG. 5 are explanatory views of the action of the idler wheel. In the figure, 1 is the fuselage frame, 8 is the drive wheel, 9 is the idler wheel, 8a, 9a are the axles, 11 is the crawler, 12
is a plate body, A is a crawler traveling device, and a is an upwardly inclined surface.

Claims (1)

[Scope of utility model registration request] In an agricultural working machine in which a part of the body frame is wrapped above the crawler traveling device, a plate body having approximately the same width as the crawler is provided on the side of the body frame opposite to the crawler over approximately the longitudinal length of the crawler, and the crawler is combined with the crawler. An agricultural working machine characterized in that the facing surfaces of the plate body are uniform planes, and at least the front side of the plate body in the direction of movement of the machine body is configured to have an upwardly inclined surface from the vicinity directly above the axle of the drive wheel to the end side. fuselage frame.