JPH10175571A - Crawler constituting part endless running device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the generation of vibration through reduction of the pad rigidity difference between elastic pad type crawler constituting parts. SOLUTION: A crawler constituting part 1 is constituted such that left and right links 2L and 2R having coupling holes 2A and 2B are provided with a track link 4 having left and right core blade parts 3L and 3R stretching in the direction of the width of a crawler and the left and right core blade parts 3L and 3R of the track link 4 are covered with an elastic pad 5. The left and right core blade parts 3L and 3R are arranged in a state that a phase is deviated longitudinally of the crawler.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler component and an infinite traveling device used for construction / civil engineering or around a foot of an agricultural machine.

[0002]

2. Description of the Related Art In general, rubber crawlers have been employed as endless traveling devices used for construction / civil engineering or around agricultural machinery. This rubber crawler is a metal core (horizontal reinforcement)
Was buried in a belt-like rubber crawler belt with an interval in the belt longitudinal direction (crawler longitudinal direction).

If a rubber crawler has a defective portion such as a chipped portion or a crack, it is troublesome to reinforce or repair the rubber crawler. Often, this wasted resources. For these reasons, attention has recently been paid to a structure in which iron crawler-type or elastic pad-type crawler components are juxtaposed in the crawler longitudinal direction and endlessly connected (connected) with hinge members such as connection pins. The elastic pad type is being spotlighted, for example, for mini backhoes because of its softness and light weight on the road surface.

[0004]

SUMMARY OF THE INVENTION In an elastic pad type crawler component and an endless traveling device in which the crawler component is connected endlessly in the longitudinal direction of the crawler, the core wing portion is embedded in the elastic pad. The difference in rigidity between the part and the part not buried was remarkable, and this became a factor of vibration, and the riding comfort was somewhat sacrificed.

On the other hand, if the core metal wings are extended in the crawler width direction with the length of the left and right links being the same as the length of the left and right links and are adhered with an elastomer material, the difference in rigidity of the elastic pads can be reduced, but this results in excessive weight. Thus, the weight reduction, which is an advantage of the elastic pad type crawler component, has been sacrificed. Therefore, an object of the present invention is to reduce the rigidity difference of an elastic pad in a crawler component of an elastic pad type and an infinite traveling device so as to reduce a vibration factor while reducing the weight. .

[0006]

SUMMARY OF THE INVENTION The present invention provides a connecting hole 2A,
A track link 4 is provided with left and right core wings 3L and 3R extending in the crawler width direction on left and right links 2L and 2R having 2B, and left and right core wings 3L and 3R of the track link 4 are provided with: A crawler component 1 on which an elastic pad 5 made of an elastomer material is adhered, and the following technical measures are taken to achieve the above-mentioned object.

That is, the crawler component 1 according to the present invention is characterized in that the left and right core metal wings 3L, 3R are provided with phases shifted in the longitudinal direction of the crawler. By adopting the configuration, the core metal wing portion 3 which is narrow with respect to the length of the left and right links 2L, 2R.
By extending the left and right sides L and 3R in the crawler width direction, the track link 4 is reduced in weight (claim 1).

Here, the track link 4 can be formed by bending the left and right links 2L, 2R and the left and right wings 3L, 3R, or by casting or forging. The left and right links 2L and 2R may be forged products, and the metal core wings 3L and 3R may be strips, bars, or the like.

Further, as means for applying the elastic pad 5,
A vulcanized bond may be used instead of an adhesive. The crawler component 1 according to the present invention is the crawler component 1 according to claim 1, wherein the elastic pad 5 includes left and right ground lugs 6L, 6R extending in the crawler width direction, and the left and right ground lugs 6L. , 6R are provided with their phases shifted in the longitudinal direction of the crawler, and the left and right metal core wings 3L, 3R are provided.
The phase is shifted in the crawler longitudinal direction from that of R. With this configuration, the difference in rigidity of the elastic pad 5 in the crawler longitudinal direction corresponds to the core metal wing portions 3L and 3R. The thickness of the pad having the ground lugs 6L and 6R is increased with respect to the pad thickness and suppressed, and the vibration factor is reduced (claim 2).

In the infinite traveling device according to the present invention, the crawler component 1 according to claim 2 is arranged in parallel in the longitudinal direction of the crawler, and the connecting holes 2A, 2B of the left and right links 2L, 2R in the crawler component 1. Are connected endlessly by a hinge member 7. With such a configuration, the book is capable of exhibiting sufficient traction force while being lightweight, and having less vibration. The machine (backhoe, combine, etc.) can be configured around the foot,
Riding comfort is improved (claim 3).

Further, a crawler component 1 according to the present invention
The left and right metal core wings 3L, 3R are provided with a plurality of spaces at intervals in the crawler longitudinal direction, and the left and right ground lugs 6L, 3L,
6R, and the ground lugs 6L, 6R are
L and 3R are provided at intervals between the left and right grounding lugs 6 while suppressing the difference in rigidity of the elastic pad 5 while being lightweight.
The pulling (driving) by the L and 6R is reliable and the twist is small (claim 4).

Further, in the infinite traveling device according to the present invention, the crawler component 1 according to claim 4 is arranged in parallel in the longitudinal direction of the crawler, and the connecting hole 2A for the left and right links 2L, 2R in the crawler component 1. , 2B to hinge member 7
Endless connection by connecting with each other, less twisting or lateral blurring in the left and right direction, less burden on the hinge member 7, and secure engagement with the sprocket teeth. (Claim 5).

Further, a crawler component 1 according to the present invention.
The elastic pad 5 is provided with a plurality of left and right ground lugs 6L, 6R extending in the crawler width direction at intervals in the crawler longitudinal direction.
3R is within the interval between the left and right ground lugs 6L, 6R or
The ground lugs 6L and 6R are provided in the space and the left and right ground lugs 6L and 6R. By adopting such a configuration, the weight of the ground lugs 6L can be reduced while suppressing vibration factors. , 6R can secure a large traction (claim 6).

Further, in the infinite traveling device according to the present invention, the crawler components 1 according to the above-mentioned claim 6 are arranged in parallel in the longitudinal direction of the crawler, and the connecting holes of the left and right links 2L, 2R in the crawler components 1 are provided. 2A and 2B are hinge members 7
It is characterized by being connected endlessly by connecting with, reducing torsion or lateral blur, lightening the load on the hinge member 7, and ensuring engagement with the sprocket teeth, A large towing was ensured, and the suspension of the machine was able to be constructed regardless of its size, small or large (claim 7).

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of a crawler component and an infinite traveling device according to the present invention will be described below with reference to the drawings. 1A, 1B and 1C show a first embodiment of a crawler component 1 according to the present invention, and FIG.
(B) shows a main part of the infinite traveling device including the part 1.

FIGS. 1A, 1B and 2C and FIG. 2A
In (B), the crawler component 1 includes connecting holes 2
A track link 4 having left and right metal core wings 3L and 3R extending in the crawler width direction is provided on left and right links 2L and 2R having A and 2B, and left and right metal core wings 3L and 3R of the track link 4 are provided. Further, an elastic pad 5 made of an elastomer material such as rubber, urethane, resin or the like is adhered.

Further, the left and right metal core wing diagrams 3L and 3R are
The elastic pads 5 are provided with right and left ground lugs 6L and 6R extending in the crawler width direction.
L and 6R are provided so as to be shifted in phase in the crawler longitudinal direction, and are shifted in phase in the crawler longitudinal direction from the left and right core metal wing portions 3L and 3R.

Further, the above-mentioned crawler component 1 is arranged in parallel in the longitudinal direction of the crawler, and the connection holes 2A, 2B of the left and right links 2L, 2R in the crawler component 1 are connected by a hinge member 7 so as to be endless. Connected to an infinite traveling device. 1 (A) (B) (C) and FIG.
In (A) and (B), the track link 4 is formed by pressing the left and right links 2L and 2R and the left and right metal core wings 3L and 3R into a pair of left and right links. Are integrated by welding or the like with a tubular track bush 8 interposed.

As a means for applying the elastic pad 5, a pair of right and left track links 4 integrated by a track bushing 8 are charged into a vulcanizing mold and the elastomer material is vulcanized and bonded. The link 4 is individually loaded into a vulcanizing mold, the elastomer material is vulcanized and bonded, and then the track bush 8 is used to integrate the left and right links 2L and 2R. good.

As for the ground lugs 6L and 6R, the front and rear inclined surfaces are formed on the flat pad body 5A by a gentle and steep inclined surface 9A.
A and 9B, which are raised substantially in a trapezoidal shape, thereby ensuring a uniform traction force in both forward and backward movements, and the left and right wing portions 3L and 3R and the left and right ground lugs 6.
The rigid pads of the left and right independent elastic pads 5 are almost equally stiffened in the left and right directions by being arranged in a positional relationship in the left and right directions with the top surfaces of the L and 6R.

One end (front end) of the left and right links 2L, 2R via the stepped portions 10L, 10R in the middle of the link length direction.
Is wide, the other end (rear end) is narrow, and a track bush 8 for engaging sprocket teeth is interposed between the narrow links, and the link end having the track bush 8 is widened. 2A and 2B, and are connected endlessly by a hinge member 7 indicated by a pin as shown in FIGS.

The left and right elastic pads 5 are independent of each other, and the left and right links 2L and 2R are formed with mud holes 11 for discharging mud, muddy water, snow and the like to the outside of the crawler. 3A, 3B, and 3C show a second embodiment of the crawler component 1 according to the present invention, which includes left and right links 2L and 2R.
Each of the mounting plates 12L and 12R formed in a narrow strip shape by shifting the phase in the crawler longitudinal direction is fixed by press molding or welding to be integrally formed.
The slightly wide core metal wings 3L and 3R are bolted to 12R.
L, 13R.
The left and right independent elastic pads 5 can be replaced by the loosening of the L and 13R, and other configurations and operations are common to those of the first embodiment described above.

The crawler component 1 of the second embodiment
2 are connected side by side in the longitudinal direction of the crawler and connected endlessly by hinge members as in FIG. FIGS. 4A and 4B show a third embodiment of the crawler component 1 according to the present invention, in which the mounting plates 12L and 12R and the right and left ground lugs 6 shown in FIGS. 3A, 3B and 3C are shown.
FIG. 4 (A) shows that L and 6R extend perpendicularly (perpendicularly) to the crawler longitudinal direction and extend in the crawler width direction.
In (B), the main body 5A of the elastic pad 5 is integrally formed on the left and right sides obliquely with respect to the longitudinal direction of the crawler, and the elastic pad 5 is formed integrally with the main body 5A.
The left and right grounding lugs 6L, 6R are formed to protrude, and the oblique grounding lugs 6L, 6R and the core metal wings 3L, 3R are extended in the width direction so as to be parallel to each other. Mud holes 14 penetrating in the thickness direction are formed in the main body 5A between the 2Rs.

In the crawler component 1 shown in FIGS. 4A and 4B, the grounding lugs 6L and 6R are so-called oblique lugs and are arranged in a staggered manner on the left and right. As shown in FIGS. 2 (A) and 2 (B), when the endless connection is made to constitute an infinite traveling device, soil, snow, etc. are discharged outward in the left-right direction while securing traction by the grounding lugs 6L, 6R. Is certain.

In the crawler component 1 shown in FIGS. 4A and 4B, components and operations common to those in FIGS. 1 and 3 are denoted by the same reference numerals.
(A) In (B), the metal core wings 3L and 3R and the lug 6
It is needless to say that L and 6R may be oblique and the main body 5A may be integrated left and right. FIG. 5 (A) (B)
FIGS. 6 (C) and 6 (A), 6 (B), and 6 (C) are fourth and fifth embodiments of the crawler component 1 according to the present invention, in which the left and right core metal wings 3L, 3R constituting the track link 4 are shown. Are provided with a plurality (two in the figure) of the left and right links 2L and 2R at intervals in the crawler longitudinal direction and are stretched in the crawler width direction (in FIG. 5, orthogonally arranged with respect to the links 2L and 2R;
In this case, the left and right ground lugs 6L, 6R provided on the elastic pad 5 in which the main body 5A is integrated right and left are within the distance between the core metal wings 3L, 3R. The front and rear inclined surfaces 9A and 9B of the ground lugs 6L and 6R in these embodiments are substantially equiangular.

The crawler component 1 in each of the fourth and fifth embodiments is connected side by side in the longitudinal direction of the crawler, and is connected endlessly by connecting the left and right links 2L, 2R with hinge members so as to form an endless traveling device. Is similar to FIG.
In addition, components and operations common to the first to third embodiments are denoted by common reference numerals. FIGS. 7 (A), 7 (B) and 8 show the sixth and seventh embodiments of the crawler component 1 according to the present invention, which extend in the crawler width direction to the link longitudinally intermediate portions of the left and right links 2L, 2R. Left and right core wings 3L,
The right and left ground lugs 6L, 6R extend in the crawler width direction in parallel with the left and right wings 3L, 3R while being arranged obliquely with respect to the link in FIG.
From the main body 5A to the front and rear of the wings 3L and 3R to position the wings 3L and 3R between the grounding lugs 6L and 6R, and to form a thin portion between the grounding lugs to form a front-rear direction of the crawler component 1. The difference in rigidity is reduced.

The crawler components 1 in the sixth and seventh embodiments are arranged side by side in the longitudinal direction of the crawler, and the left and right links 2L, 2R are connected by hinge members to be connected endlessly to constitute an endless traveling device. First, parts common to those shown in FIGS. 1 to 6 are denoted by common reference numerals. FIGS. 9A and 9B show an eighth embodiment of a crawler component 1 according to the present invention, in which a core metal wing portion 3L extends in the crawler width direction at intervals in the link longitudinal direction of the left and right links 2L and 2R. , 3R (in the figure, the right and left ground lugs 6L, 6R are independent of the front and rear corresponding to the front and rear core wings 3L, 3R, respectively). , And the intermediate core metal wings 3L, 3R are made thin without forming any lugs.

In the eighth embodiment, the front and rear rigidity of the crawler component 1 can be increased, and the ground lugs 6L, 6R
Thus, while the large traction force can be secured, the earth discharging / snow discharging performance between the front and rear ground lugs 6L and 6R can be improved. The crawler component 1 according to the eighth embodiment is also arranged side by side in the longitudinal direction of the crawler and connected endlessly to constitute an infinite traveling device, and the portions common to the portions shown in FIGS. Is indicated by a common code.

[0029]

As described above in detail, according to the present invention, the grounding lug is patterned while ensuring the basic effects such as easy replacement of the elastic pad type crawler components and softness on the road surface. Therefore, there is an advantage that a difference in rigidity can be suppressed and a vibration factor can be reduced.

[Brief description of the drawings]

1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is a plan view of a crawler component, FIG. 1B is a front view, and FIG. 1C is a side view.

2 (A) is a plan view, and FIG. 2 (B) is a side view showing a part of a connected (connected) state of the crawler components of FIG.

3A and 3B show a second embodiment of the present invention, wherein FIG. 3A is a plan view of a crawler component, FIG. 3B is a front view, and FIG. 3C is a side view.

4A and 4B show a third embodiment of the present invention, wherein FIG. 4A is a plan view of a crawler component, and FIG. 4B is a front view.

5A and 5B show a fourth embodiment of the present invention, wherein FIG. 5A is a plan view of a crawler component, FIG. 5B is a front view, and FIG. 5C is a side view.

FIG. 6 is a plan view of a crawler component according to a fifth embodiment of the present invention.

7A and 7B show a sixth embodiment of the present invention, wherein FIG. 7A is a plan view of a crawler component, and FIG. 7B is a side view.

FIG. 8 is a plan view of a crawler component according to a seventh embodiment of the present invention.

9A and 9B show an eighth embodiment of the present invention, wherein FIG. 9A is a plan view of a crawler component, and FIG. 9B is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Crawler component 2L, 2R link 3L, 3R Core wing part 4 Track link 5 Elastic pad 6L, 6R Ground lug

Claims (7)

[Claims] A track link (4) having left and right metal core wings (3L) (3R) extending in the crawler width direction on left and right links (2L) (2R) having connection holes (2A) (2B). Crawler component (1) having left and right metal core wings (3L) (3R) of the track link (4) covered with elastic pads (5) made of an elastomer material.
A crawler component, wherein the left and right core metal wings (3L) (3R) are provided with phases shifted in the crawler longitudinal direction. 2. The crawler component (1) according to claim 1,
, The elastic pad (5) is provided with left and right ground lugs (6L) and (6R) extending in the crawler width direction, and the left and right ground lugs (6L) and (6R) are provided with phases shifted in the crawler longitudinal direction. And the left and right core wings (3
L) A crawler component having a phase shifted from that of (3R) in the longitudinal direction of the crawler. 3. The crawler component (1) according to claim 2, wherein
Are arranged side by side in the longitudinal direction of the crawler, and the connection holes (2A) and (2B) of the left and right links (2L) and (2R) in the crawler component (1) are connected endlessly by a hinge member (7). Infinite traveling device characterized by doing. 4. A track link (4) having left and right metal core wings (3L) (3R) extending in the crawler width direction on left and right links (2L) (2R) having connection holes (2A) (2B). Crawler component (1) having left and right metal core wings (3L) (3R) of the track link (4) covered with elastic pads (5) made of an elastomer material.
The left and right core metal wings (3L) and (3R) are provided with a plurality of them at intervals in the crawler longitudinal direction, and the left and right elastic pads (5) extend in the crawler width direction. Ground lugs (6L) and (6R) are provided.
Is a crawler component provided at an interval between the metal core wings (3L) (3R). 5. The crawler component (1) according to claim 4,
Are arranged side by side in the longitudinal direction of the crawler, and the connection holes (2A) and (2B) of the left and right links (2L) and (2R) in the crawler component (1) are connected endlessly by a hinge member (7). Infinite traveling device characterized by doing. 6. A track link (4) having left and right metal core wings (3L) (3R) extending in the crawler width direction on left and right links (2L) (2R) having connection holes (2A) (2B). Crawler component (1) having left and right metal core wings (3L) (3R) of the track link (4) covered with elastic pads (5) made of an elastomer material.
The elastic pad (5) is provided with a plurality of left and right ground lugs (6L) and (6R) extending in the crawler width direction at intervals in the crawler longitudinal direction. 3L) and (3R) are the left and right ground lugs (6L) and (6L).
R) Within the interval or within the interval and the left and right ground lugs (6L)
(6R) The crawler component part provided inside. 7. A crawler component (1) according to claim 6,
Are arranged side by side in the longitudinal direction of the crawler, and the connecting holes (2A) (2B) of the left and right links (2L) (2R) in the crawler component (1) are connected endlessly by a hinge member (7). An infinite traveling device characterized by being connected.