JPS6143666Y2 - - Google Patents

Description

[Detailed Description of the Invention] The disclosed technology belongs to the technical field of attaching auxiliary lugs to the crawlers of agricultural machinery such as combines to improve resistance to wet fields.

This invention relates to a crawler of an agricultural machine such as a combine harvester, which is equipped with a removable auxiliary lug to improve the wet field performance of the machine. A pair of auxiliary lugs are fitted into the receiver having a pair of fitting grooves embedded in the part through the fitting grooves, and are fixed integrally with the crawler using a fixing plate. This relates to the auxiliary lug structure of agricultural machinery.

As is well known, as shown in Fig. 1, an agricultural machine such as a combine harvester 1 has a preprocessing section 2 at the front, an operating section 3 and a threshing section 4 at the middle, and a binding section 5 at the rear at the bases on both sides of the machine. Some of them are mounted on each crawler 6.

Conventionally, the crawler 6 of agricultural machinery such as the combine harvester 1 is generally designed for running in dry fields, and the lugs protruding around the crawler 6 are designed for running in wet fields, particularly in extremely wet fields. However, the problem was that it was not easy to drive.

Therefore, there was also the inconvenience that the rolling operation could not be carried out sufficiently, resulting in a decrease in working efficiency.

To deal with this, it is possible to increase the number of lugs surrounding the crawler 6 and make them taller and longer, but this will lose its versatility for dry fields, and furthermore, the lugs may crack or wear out when running on the road. In addition, there are disadvantages such as increased vibration of the aircraft.

In addition, various structures have been developed in which separate auxiliary lugs are attached to the crawler, but conventional auxiliary lugs are fastened and fixed in contact with the flat surface of the crawler, which may damage the crawler surface or cause fatigue. There was a problem that this could occur.

The purpose of this invention is to eliminate the above-mentioned problems by fitting and fixing the auxiliary lug into a receiver buried in the crawler, in view of the problems of the auxiliary lug structure of agricultural machinery based on the above-mentioned conventional technology. The purpose is to provide an excellent auxiliary lug structure that eliminates oil and problems.

The structure of this invention in accordance with the above purpose is to make the surface of the crawler smooth when working in dry fields, and to fix it by inserting auxiliary lugs from the side of the crawler when working in wet fields. The main idea is to improve the wet field performance and to make the auxiliary lug removable when switching between dry field and wet field work.

Next, an example of this invention will be described in the second embodiment with reference to FIG.
The explanation will be as follows based on the drawings below.

6 is a crawler and a combine harvester 1 as an agricultural machine
It is stretched between a driving wheel 7 and a driven wheel 8 at the base of the wheel, and is guided by rolling wheels 9, 9, . . . .

As shown in FIG. 2, a core metal 10 is embedded in the crawler 6 as in the conventional crawler 6, and holes 11 are bored in the front and rear of the core metal 10.

Reference numeral 12 denotes an auxiliary lug structure, which constitutes the gist of this invention, and the crawler 6 has the core metals 10, 10
A receiver 15 is opened at both ends in between, has a fitting groove 13, and has a screw hole 14 on the outer surface. A pair of opposing fitting grooves 13 are embedded in the opening so that they can fit together.

On the other hand, auxiliary lugs 17, 1, which are also a pair of opposing lugs,
Reference numeral 7' denotes a fitting part 18 inserted into the fitting groove 13 and protrusions 19, 19' exposed and protruding from the crawler 6.
Further, the protrusion 19 of the auxiliary lug 17 extends in the width direction of the crawler 6, and has a convex engagement portion 20 at the extended end; A concave portion 21 is provided at the end of the lug 17 opposite to the convex engaging portion 20 of the lug 17.

A pair of fixing plates 23 of the same type having perforated portions 22 facing the screw holes 14 of the receiving plate 15 on both sides of the crawler 6 press the ends of the lugs 17, 17 against the receiving plate 15. It can be fixed.

In the above configuration, in order to run the combine harvester 1 in wet fields, the auxiliary lugs 17 and
17' are fitted oppositely from the side of the crawler 6,
The convex engaging portion 20 of the auxiliary lug 17 and the auxiliary lug 17'
The auxiliary lug 1 is reliably placed inside the crawler 6 by fitting the concave portions of the auxiliary lug 1 into one body and pressing the fixing plate 23 into contact with the receiving plate 15 via a screw or the like.
7, 17' are fixed.

When the combine harvester 1 is put into operation, the auxiliary lugs 17, 17' grip the tiller, and as a result, the travel is ensured and the combine harvester 1 performs the desired work.

Then, the auxiliary lugs 17, 17' fit into the receivers 15 buried in the crawler 6, and the fixing plate 2
Since it is pressed with 3, it may loosen during harvesting,
It will never come off.

In addition, when driving on dry fields or on roads, the auxiliary lugs 17, 17' are removed, and the rubber members 24, which have the same shape as the fitting portions 18 of the lugs 17, 17', as shown in FIG. By filling the fitting groove 13 in the fitting groove 13 and covering it with the fixing plate 23, the fitting groove 13 is
This can prevent mud, gravel, etc. from getting into the tank.

Furthermore, as shown in FIGS. 4 and 5, the auxiliary lug 1
By making the protrusions 19 and 19' of 7 and 17' into overhang-shaped protrusions 25, the tips 26 of the overhang-type protrusions 25 can be rotated by the rotation of the crawler 6 against the wet plowing plate. Near the ground contact, the plow becomes vertical and the resistance to digging into the tiller is reduced, making it easier to dig into the tiller and making the wet field run even smoother.

Furthermore, when the overhang-shaped protrusion 25 is attached to the crawler 6, the traveling performance between dry fields and wet fields is improved.

On the other hand, a traveling rudder 27 that bites into the tillage pan as shown in FIG. 6 is attached to the rear of the machine body, and side clutches 29R, 29L are connected through a main frame 28 of the combine harvester 1.
By connecting the actuator to the actuator via springs 30, 30', the turning performance in wet fields is further improved.

It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments; for example, a screw or the like may be inserted through the end of one of the protrusions of a pair of lugs and fastened to the other protrusion. Various embodiments are possible, such as making the core metal and the receiving metal integral, or making a pair of opposing receiving metal pieces integral.

As described above, according to this invention, in the auxiliary lug structure of agricultural machinery, the support metal is embedded between the core metals of the crawler, so the crawler is reinforced, and furthermore, the crawler is prevented from twisting due to the running reaction force of the auxiliary lug. Excellent effects can be achieved.

Further, since the receiving plate has the fitting groove, there is an advantage that the receiving plate is lightweight.

Furthermore, since a pair of holders are embedded on both sides of the crawler, there is an advantage that a pair of auxiliary lugs can be inserted facing each other from either side of the crawler. Since the auxiliary lug is fitted and fixed through the gold fitting groove, the auxiliary lug is guided by the fitting groove and can be easily fitted, and there is also the advantage that the auxiliary lug can be easily attached and detached.

Furthermore, by attaching the auxiliary lug to the crawler, the performance against wet fields is definitely improved, and as a result, the running is reliable and the turning performance is also improved, which has the excellent effect of making it possible to perform harvesting work effectively. be done.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention,
Figure 1 is a schematic illustration of a combine harvester equipped with a rudder;
Figure 2 is a perspective view of the auxiliary lug structure, Figure 3 is a perspective view of the supplementary member, Figure 4 is a side view of the lug, Figure 5 is a perspective view of Figure 4, and Figure 6 is the rudder. FIG. 6... Crawler, 17, 17'... Auxiliary lug,
12...Auxiliary lug structure, 10...Core metal, 13...
Fitting groove, 15...receptacle.

Claims (1)

[Scope of utility model registration request] In an auxiliary lug structure for an agricultural machine consisting of a crawler attached to a machine body and a lug that can be detachably attached to the crawler, a pair of receivers each having a fitting groove are buried between the core metals of the crawler on both sides. An auxiliary lug structure for agricultural machinery, characterized in that a pair of auxiliary lugs can be fitted and fixed to each of the receivers through the fitting grooves.