JPS6114035B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention further provides a reinforcing lug device that is removably attached to the crawler of a harvesting machine that carries a working part such as a combine harvester and performs harvesting work while self-propelled. The present invention relates to a device that improves resistance to wet fields, and particularly relates to a device that is attached to a core metal portion of a crawler when it is attached to the crawler.

Conventionally, self-propelled crawlers such as combine harvesters have used crawlers made of elastic materials such as hard rubber, with core metals that engage the drive wheels buried at predetermined intervals. In order to maintain running and turning performance, lugs of approximately 20 mm in height are protruded from the surface in the width direction.

However, in general, there are two types of fields, so-called dry rice fields and wet rice fields, and although the above-mentioned crawler can perform the specified harvesting work in dry rice fields, in wet rice fields, the harvester tends to sink, and among other things, In ultra-wet fields, human feet sink by as much as 20 cm, so crawler lugs with a height of about 20 mm are difficult to penetrate into the wet field soil, resulting in insufficient traction for harvesters.

As a result, in wet fields, the running speed is reduced, which reduces harvest efficiency, and the lack of buoyancy makes it difficult to adjust the cutting height, leading to variations in threshing work, etc.
Furthermore, there was a drawback in that working efficiency deteriorated due to poor turning.

To deal with this, it is possible to make the crawler lugs taller and longer, but in that case, the lug resistance will increase for dry fields, and
There are disadvantages in terms of the rotational properties of the driving wheels and driven wheels, restrictions due to the hard rubber material, and further disadvantages such as increased vibration of the machine when driving on the road.

The purpose of this invention is to take into account the problem of the wet field nature of the self-propelled crawler of a harvester based on the above-mentioned conventional technology, and to easily attach a crawler reinforcing lug device of an extremely simple structure to the self-propelled crawler in a detachable manner. By doing so, we aim to provide a product that achieves excellent effects and solves these problems.

The structure of the present invention in accordance with the above object is such that when the harvesting machine is used to work on wet paddy fields, it is possible to use a plate portion having a protruding lug, in contrast to a self-propelled crawler of a normal harvesting machine that runs on the road and works on dry paddy fields. is removably attached to the core part of the crawler, and at that time,
The engaging portions on both sides of the plate portion are engaged with and attached to the core metal portion to prevent them from falling off during operation, while the protruding lugs are used to securely grip the wet paddy soil during harvesting work, The gist of this is to make it possible to bite and run accurately, provide sufficient buoyancy, and turn reliably to efficiently carry out predetermined harvesting operations.

Next, embodiments of the present invention will be described below based on the drawings.

1 is a combine harvester as an agricultural machine, and on top of the crawler 2, from the front, there is a pre-processing section 3, an operation section 4,
A threshing unit 5 etc. is installed.

The gist of this invention lies in the crawler part 2,
The details are shown in Figure 2 and below.

The crawler 2 is made of ordinary hard rubber, and core metals 6 are embedded at predetermined intervals, and lugs 7 are also protruded from the surface thereof at predetermined intervals, and drive wheels 8, driven wheels 9,
The rollers 10 are placed in between and stretched.

A reinforcing lug device 11 is detachably attached to the core portion 6 of the crawler 2 as shown in FIG.

The reinforcing lug device 11 has engaging portions 12, 1 on both sides.
a plate portion 14 that is longer than the width of the crawler 2 and a protruding lug 15 that is higher and longer than the lug 7 of the crawler 2 that protrudes from the plate portion 14;
They are integrally molded from an appropriate elastic material such as iron, aluminum, reinforced plastic, or hard rubber.

Thus, the reinforcing lug device 11 is connected to the core metal portion 6 embedded inside the endless rubber crawler 2.
It is clamped to the surface so that it does not easily come off due to twisting of the endless rubber crawler 2 even if subjected to twisting resistance due to running torque.

A retaining pin 16 is inserted into a pinhole 17 on one side of the long engaging portion 13 and is secured by a split pin 18.

It is also possible to tighten the tip of the stop pin 16 to the crawler by using a nut or the like, or by engaging the threaded part of the return part of the engaging part.

In the above configuration, when the combine harvester 1 is run on the road or used for harvesting work in a dry field, the reinforcing lug device 11 is not installed as described later, that is, as shown in FIG. It is self-propelled with a normal crawler and performs predetermined travel or harvesting work.

When harvesting is performed in a wet paddy field or a very wet paddy field, each reinforcing lug device 11 without the fixing pin 16 inserted is moved to the crawler in order to enhance the wet paddy resistance of the crawler 2. Attach it to 2. The process is to first bring the plate part 14 into contact with the core bar 6 of the crawler 2, fully insert the long engagement part 13 into the edge of the core bar 6 of the crawler 2, and then Pull the short engaging part 12 at the other end to engage both the engaging parts 12 and 13 with the crawler 2, insert the stop pin 16 into the pinhole 17 on one side of the engaging part 13, and fix it with the split pin 18. Alternatively, the reinforcing lug device 11 is fixed between the lugs 7, 7 of the crawler 2 by screw engagement to complete the installation.

As shown in FIG. 2, the reinforcing lug device 11 is installed in the crawler 2.
The lug 15 securely grips and bites into the wet field soil, and as a result, progress is ensured, and therefore, buoyancy is provided, and the turning ability is good for effective harvesting work.

In addition, the lugs 15 of the reinforcing lugs 11 are attached to the crawler 2 at the buried portion of the core bar 6, which has relatively high rigidity, so that they cannot be removed during work.

When harvesting dry rice fields or driving on the road, remove the split pin 18 of the reinforcing lug device 11, or remove the screw nut, and pull out the stop pin 16 from the pin hole 17 of the long engagement part 13. The engaging part 13 is pushed out against the crawler 2, and the plate part 1
4 inward against the core metal part 6 of the crawler 2, remove the other short engaging part 12 from the edge of the crawler 2, and then pull the engaging part 13 to attach the reinforcing lug device 11 to the crawler 2. The vehicle is removed from the vehicle and driven in the normal, ie, condition shown in FIG.

By doing so, harvesting work etc. in dry rice fields is facilitated, and increase in vibration of the machine body and damage to the reinforcing lug device 11 when traveling on the road are prevented.

As described above, according to the present invention, a reinforcing lug device is removably attached to the core embedded part of the crawler of a harvesting machine having a normal self-propelled endless rubber crawler through the plate part, thereby making it possible to In rice fields, the lug area increases to ensure that it grips the wet field soil, and by sufficiently digging into the soil, it travels reliably, has buoyancy, and can turn well, making harvesting work more efficient. effective.

In addition, the reinforcing lug device allows strong traction in super-swampy fields, etc., because the engaging portion is clamped to the core metal portion of the crawler.

In addition, since the reinforcing lug device is attached to the surface of the core metal part buried inside the endless rubber crawler, even when traveling in wet paddy fields, even if the running torque is greater than that in dry paddy fields, the endless rubber crawler will not run endlessly. The rubber crawler increases torsional rigidity in combination with the core metal, and therefore has the advantage that the crawler is difficult to twist and there is no risk of the reinforcing lug device coming off due to large twisting.

In addition, since the structure is simple, it can be easily attached and removed, and maintenance is also easy because no breakdowns occur.

Incidentally, the above embodiment is a mode in which the installation positions of the core metal and the crawler lug are misaligned, but if the core metal and the crawler lug are in the same location,
As shown in the figure, a plate part 1 is provided with a protruding lug 15' having a recess that fits into the lug 7 of the crawler 2.
Engagement hinge parts 12', 13' are provided at both ends of 4', and the engagement hinge parts 1 are provided with screw pins 16', 16''.
2' and 13', the reinforcing lug device 11 can be similarly attached to the core metal part 6.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic explanatory diagram during dry field work, FIG. 2 is an enlarged explanatory diagram of FIG. 1 during wet field work, and FIG. 3 is a perspective view of a reinforcing lug device. 4 is an explanatory cross-sectional view of the same, and FIG. 5 is an explanatory plan view of the crawler when the reinforcing lug device is attached. 6a and 6b are explanatory diagrams of other embodiments. 3, 4, 5... Working part, 2... Endless rubber crawler, 11... Reinforcement lug device, 12, 13, 1
2', 13'...Engagement part, 14, 14'...Plate part, 15, 15'...Lug, 6... Core metal part.

Claims (1)

[Claims] 1. In a combination structure of a self-propelled endless rubber crawler equipped with a working part and a reinforcing lug device detachably attached to the crawler, the reinforcing lug device has an engaging portion for the edge of the endless rubber crawler and a reinforcing lug device that is detachably attached to the crawler. The plate part connected to the joint part and the lug protruding from the plate part are integrally formed, and furthermore, the reinforcing lug device is clamped to the surface of the core metal part buried inside the endless rubber crawler. Features a combination structure of crawler and reinforcing lug device.