JPH04292273A - Elastic crawler with rigid shoe - Google Patents

Abstract

PURPOSE:To reduce the noise in the crawler of a crawler vehicle, usable even in a rock-bed place, making a shoe piece interchangeable and simplify its structure for inexpensiveness in price. CONSTITUTION:Both recess parts 5 and 7 holding a rubber belt 10 between them are installed in both right and left blades between a plate 1, having a mesh-engaging part 2 with a drive sprocket, and an iron shoe 6 usable even on a rock-bed place, and a wavy groove 8 is installed on the surface in the longitudinal direction. A wavy groove 11 congruent with the groove 8 is formed both surfaces of the rubber belt 10, while this rubber belt 10 is interposed between the plate 1 and the shoe 6, and these grooves 8 and 11 are fitted together for setting, thereby clamping them by a bolt 16 and a nut 17. Structure is simple and cost is inexpensive and, what is more, a shoe piece is easily detachable. An interval of adjacent mesh-engaging parts 2 is equal to one tooth pitch of the drive sprocket, through which knock noise is reduced and any other noise at time of running is abated as well.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to tracks for tracked vehicles.
In particular, the present invention relates to a crawler track composed of an elastic belt and a rigid shoe.

0002

2. Description of the Related Art FIG. 31 is a side view of a running device for a tracked vehicle such as a bulldozer, in which a guide wheel 81 and a starting wheel 82 are attached to both ends of a track frame 83, and an upward wheel is mounted on the upper surface. A wheel 84 is attached to the lower surface, and a lower roller 85 is attached to the lower surface. A crawler belt 86 having a shoe 87 is wrapped around each of these wheels and meshes with a starting wheel 82, and the driving wheel 82 transmits power to drive the vehicle. FIG. 32 is a perspective view of a conventional iron crawler track 90, in which a number of links 91 each having a tread surface 92 of a rolling wheel are pivotally connected in an endless manner via a pin 93 and a bush 94 that engages with a starting wheel 82. , each link 9
1 and a shoe 95 is fastened with a bolt 96. FIG. 33 is a perspective view of a conventional rubber crawler, and FIG. 34 is a front sectional view of the rubber crawler. The lower side of the plate 110, which has a meshing engagement portion 101 with the starting wheel 82, a guide 102 for preventing the rolling wheel from slipping off, and a rolling rail surface 103 of the lower rolling wheel, maintains strength in the strip direction. For this purpose, a plurality of core wires 106 are provided. Plate 110 and core wire 1
Rubber 107 is integrally vulcanized and molded to 06, and together with the rubber belt 104, forms an annular rubber track. In both types, the meshing engagement portion meshes with the driving wheel 82 every two teeth. That is, the pitch of the two teeth of the driving wheel is equal to one pitch of the crawler belt.

0003

[Problems to be solved by the invention] As mentioned above, iron crawlers have a long lifespan, and they do not crack or crack even on rocky ground.
There is no risk of damage, and the shoe can be replaced separately, but
It has the disadvantages of high undercarriage noise, a complex structure, and a large number of parts. Rubber tracks have the advantages of low running noise, no damage to paved roads, and simple structure, but the wear life of the shoes is short, and the shoes are easily damaged on rocky ground, making them unusable, and the rubber belt and shoes are integrally molded. Because there is
There is a problem that the shoe itself cannot be replaced.

[0004] The present invention has been made in view of the above-mentioned problems, and has low noise, long shoe life, can be used on rocky ground, can replace the shoe alone, has a simple structure, and is inexpensive. The purpose is to provide a cheap elastic crawler track with a rigid shoe.

[Means for solving the problem] In order to achieve the above objectives,
In the first aspect of the elastic crawler track with a rigid shoe according to the present invention, the crawler track of a tracked vehicle includes an annular belt made of an elastic body, and the belt is fixed to the belt at equal intervals in parallel, and the driving force from the starting wheel is grounded. In the second invention, the member includes a plate receiving the driving force from the starting wheel and a shoe serving as the ground contacting part, The plate and the shoe are arranged as a pair in parallel at equal intervals, and the belt is clamped by the plate and the shoe, and in a third aspect of the invention, core metals are buried in parallel at equal intervals. The belt is characterized in that the shoe, which is the member, is fastened with bolts, and in a fourth aspect of the present invention, the belt and the shoe, which are parallel and equally spaced, are embedded in the belt and the shoe that receives the driving force from the starting wheel. , the shoe, which is the member, is fastened with a bolt, and in a fifth invention, the member is a plate receiving a driving force from a starting wheel;
The shoe is a grounding portion, and the belt, in which cored metals are embedded in parallel at equal intervals, is sandwiched between the plate and the shoe, and fastened with bolts.

[0005]

[Operation] According to the above structure, the crawler track is composed of a belt made of an elastic body and a plate and a shoe made of a rigid body, and the belt is clamped between the plate and the shoe, or the belt and the shoe are fastened with bolts. As a result, the structure is simple and the shoe can be easily attached and detached.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the elastic track with rigid shoes according to the present invention will be described in detail below with reference to the drawings. 1 is a perspective view of the first embodiment, FIG. 2 is a plan view, FIG. 3 is a front sectional view, and FIG. 4 is a side view taken along line A-A in FIG. 2. The plate 1 has a meshing engagement portion 2 with a starting wheel, a rolling rail surface 3 of a rolling wheel, and a guide 4. Recesses 7 for holding two annular belts 10 made of elastic material are provided on both left and right wings of the shoe 6 made of a rigid body such as iron, and a wave-shaped groove 8 is provided in the front-rear direction. Similar wave-shaped grooves are also provided on the surface of the recess 5 of the plate 1 for holding the belt. belt 10
A corrugated groove 11 matching the corrugation of the plate 1 and shoe 6 is formed on both sides of the plate. The cross section of the belt 10 is as shown in FIG. 5(a), and a core wire 12 for maintaining strength is buried in the center, and biases as shown in FIG. retains the strength of
It is vulcanized and molded from rubber 14, which is an elastic body.

As shown in FIGS. 1 to 4, as shown in FIGS. 1 to 4, the belt 10 is fitted between the plate 1 and the shoe 6 in a corrugated manner, and the left and right ends are tightened with bolts 16 and nuts 17. . A pin 18 is inserted into the center part to maintain strength. The driving force for the starting wheel is from plate 1 to bolt 16 and pin 1.
8 to the shoe 6. Although force is transmitted to adjacent shoes via the belt 10, the plate 1 and the belt 10 do not slip because the corrugations fit together. Note that the pitch P of the plates in FIG. 4 is such that each tooth of the driving wheel 82 meshes with each other. This structure is made possible by using a rubber belt. A large portion of the running noise of the crawler track is the collision noise between the crawler track and the starting wheel or guide wheel that occurs when the crawler rotates, and the collision noise becomes smaller as the crawler pitch becomes smaller. Therefore, by halving the pitch P of the conventional one, noise can be significantly reduced.

FIG. 6 shows a cross-sectional view of a second plan of the belt 10, in which an iron plate 15 is placed approximately the width of the belt 10 at a position between the core wire 12 and the bias 13 to be sandwiched between each plate 1 and the shoe 6. By vulcanizing and molding the belt 10, the plate 1, and the shoe 6 together with the rubber 14, the belt 10, the plate 1, and the shoe 6 are more securely restrained.

FIGS. 7, 8, and 9 show various embodiments of uneven patterns for preventing displacement of the surface of the recessed portion 7 of the shoe 6, and FIG. A groove 20 is provided in. A similar groove is provided on the surface of the recess 5 of the plate 1, and the belt 10
Naturally, protrusions that fit these grooves are provided on the upper and lower surfaces of the groove. Thereby, a more reliable effect of preventing displacement against the force in the left and right direction applied between the plate 1 and the shoe 6 and the belt 10 is exhibited. FIGS. 8 and 9 show third and fourth designs provided for the same purpose, with (a) showing the entire shoe and (b) showing details of the pattern. Figure 8 shows protrusion 2
In FIG. 9, a triangular wave pattern 22 is provided.

FIG. 10 shows the direction of the corrugated grooves compared to the first embodiment.
A wave-shaped groove 23 is provided in the horizontal direction on the surface of the recess 5 of the plate 1 and the surface of the recess 7 of the shoe 6, and a wave-form groove 24 matching the groove 23 is provided on both sides of the belt 10.
is formed. In assembly, the belt 10 is compressed and tightened from above and below by the plate 1 and the shoe 6, and like the V-groove of a pulley in a V-belt, by increasing the apparent coefficient of friction, the force in the longitudinal direction is reduced to frictional force. It is communicated by

In FIGS. 11 and 12, the thickness T1 of the bent part is made thicker than the thickness T2 of the center part of the shoe in order to strengthen the bent part when the belt 10 wraps around the starting wheel or the guide wheel. 11 is the first plan, showing the shape of the groove in FIG. 1, and FIG. 12 is the second plan, showing the shape of the groove in FIG. 10. The groove of the shoe 6 has a convex waveform 25. The belt groove has a concave waveform 26.

FIG. 13 shows that the plate 1 has protrusions 30, 3 in order to prevent dirt from entering the tightening part of the belt 10.
1, and the shoe 6 is provided with protrusions 32 and 33. In FIG. 14, a plate 1 and a shoe 6 are bonded to a belt 10 with an adhesive, and although it is impossible to replace only the shoe, the structure is simple and inexpensive.

FIG. 15 is a plan view of the second embodiment, and FIG.
6 is a front sectional view. The shoe 35 has a meshing engagement portion 2;
A rolling rail surface 3 and a guide 4 are provided, and both wings are provided with a stepped portion 36 on which a core bar 41 of a belt 40 is mounted, and a recessed portion 37 into which a rubber 43 is fitted. The belt 40 is formed by vulcanizing and molding core metals 41 and core wires 42, which are arranged in parallel and at equal intervals, into an annular body using rubber 43. For assembly, the rubber 43 of the belt 40 is fitted into the recess 37 of the shoe 35, and the core metal 41 is tightened with bolts 16 and nuts 17. power is shoe 3
5 to the belt 40 via the bolt 16, the contact surface between the belt 40 and the shoe 35 is smooth and has no groove to prevent it from coming off.

FIG. 17 shows a first plan of the third embodiment, in which rubber belts 46 are integrally molded into a ring on both left and right wings of a plate 45 having a meshing engagement portion 2, and shoes 47 are fastened with bolts 16 and nuts 17. At the same time, tighten the bolt 48 in the center.
It is tightened by. Figure 18 shows the second plan, where shoe 4
9 is attached only by bolts 16 and nuts 17 at both ends, and the bolt at the center is omitted, simplifying the structure.

FIGS. 19 and 20 show a fourth embodiment, and FIG.
9 is a plan view, and FIG. 20 is a front sectional view. The two rubber belts attached to the left and right wings of the plate 1 are integrally vulcanized and molded with a core bar 51 over the entire width of the plate 1 using a core wire 52 and rubber 53 to form a belt 50. To assemble, place belt 50 between plate 1 and shoe 6.
are clamped and tightened with bolts 16, nuts 17 and bolts 48. In this embodiment, as in the second embodiment, the force is received by the bolt, so the contact surfaces between the plate 1, shoe 6, and belt 50 are smooth. FIG. 21 shows a second draft of the fourth embodiment, in which a pin 18 is inserted in place of the bolt 48. FIG. 22 shows a third plan, in which pawls 55 are provided on the plate 1 instead of the bolts 48 and pins 18, and are fitted into stepped portions 56 provided on the shoe 6 to firmly connect the plate 1 and the shoe 6. This is what I did. Figure 23 shows a different structure of the core metal.In order to improve the adhesive strength between the core metal and the core wire, the core metal 57
The core wire 52 is sandwiched between the upper and lower layers, and the rubber 53 is
It is vulcanized and molded. This is also applicable to other embodiments.

FIG. 24 shows a first plan of the fifth embodiment, and FIG.
The two adjacent plates of the first embodiment are made into an integrated plate 60, and the meshing engagement portion 2 is made into one piece. Since meshing is performed every two teeth of the driving wheel, the noise reduction effect is lost, but there is an advantage that the number of parts can be reduced. FIG. 25 shows a second plan of the fifth embodiment, in which a plate 63 having two meshing engagement portions 2 of the first plan is used.

FIG. 26 shows a first plan of the sixth embodiment, and FIG.
The two adjacent shoes in the second embodiment of No. 6 are made into one shoe 62, and the meshing engagement portion 2 is made into one piece. Figure 2
7 shows a second plan of the sixth embodiment, in which the meshing engagement portion 2 of the first plan
A shoe 65 having two shoes is used.

FIG. 28 shows a first plan of the seventh embodiment, and FIG.
The two shoes of the fourth embodiment of No. 0 are integrated to form a meshing engagement portion 2.
The plate 60 with one plate 60, the belt 70 with a cored metal 71 embedded therein, and the shoe 61 are connected by bolts and pins (not shown). The contact surfaces between the plate 60, shoe 61, and belt 70 are smooth as in the second embodiment. FIG. 29 shows a second plan of the seventh embodiment, in which two meshing engagement portions 2 are provided in the first plan.

FIG. 30 shows an eighth embodiment, and the fourth embodiment shown in FIG.
In the example, a waveform 11 is provided as in the first example,
The plate 1, belt 74, and shoe 6 are more securely restrained.

[0020]

Effects of the Invention As described in detail above, the present invention comprises a crawler track for a tracked vehicle consisting of a plate that receives the driving force of a starting wheel, an annular elastic belt, and a rigid shoe made of iron or the like. Since the belt and the shoe are clamped together, or the plate, the belt and the shoe, or the belt and the shoe are fastened with bolts, the following effects are achieved. (1) Since the shoe is made of a rigid body such as iron, it has a long life and can be used on rocky ground. (2) Since the shoe can be attached and detached by itself, replacement and repair are easy and economical. (3) Simple structure and low cost. (4) When the meshing engagement portion is structured so that each tooth of the driving wheel meshes with each other, running noise can be significantly reduced.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a first embodiment of an elastic track according to the present invention.

FIG. 2 is a plan view of the first embodiment.

FIG. 3 is a front sectional view of the first embodiment.

FIG. 4 is a side view of the first embodiment.

FIG. 5 is a sectional view showing a first plan of the belt configuration.

FIG. 6 is a sectional view showing a second plan of the belt configuration.

FIG. 7 is a perspective view showing various designs of patterns on the contact surface between the belt and the shoe.

FIG. 8 is a perspective view showing various designs of patterns on the contact surface between the belt and the shoe.

FIG. 9 is a perspective view showing various designs of patterns on the contact surface between the belt and the shoe.

FIG. 10 is a perspective view showing various designs of patterns on the contact surface between the belt and the shoe.

FIG. 11 is a sectional view of a first plan for reinforcing the bent portion of the belt.

FIG. 12 is a perspective view of a second plan for reinforcing the bent portion of the belt.

FIG. 13 is a cross-sectional view of the protrusion of the earth and sand provided on the plate and shoe.

FIG. 14 is an explanatory diagram when a plate and a shoe are bonded to a belt.

FIG. 15 is a plan view of the second embodiment.

FIG. 16 is a front sectional view of the second embodiment.

FIG. 17 is a front sectional view of the first plan of the third embodiment.

FIG. 18 is a front cross-sectional view of a second body according to the third embodiment.

FIG. 19 is a plan view of a first plan of the fourth embodiment.

FIG. 20 is a front sectional view of the first plan of the fourth embodiment.

FIG. 21 is a front sectional view of a second plan of the fourth embodiment.

FIG. 22 is a perspective view of a third plan of the fourth embodiment.

FIG. 23 is a front sectional view of another embodiment of the core metal.

FIG. 24 is a perspective view of a first plan of the fifth embodiment.

FIG. 25 is a perspective view of the second plan of the fifth embodiment.

FIG. 26 is a perspective view of the first plan of the sixth embodiment.

FIG. 27 is a perspective view of the second plan of the sixth embodiment.

FIG. 28 is a perspective view of the first plan of the seventh embodiment.

FIG. 29 is a perspective view of a second plan of the seventh embodiment.

FIG. 30 is a perspective view of the eighth embodiment.

FIG. 31 is a side view of the traveling device of the tracked vehicle.

FIG. 32 is a perspective view of a conventional iron crawler track.

FIG. 33 is a perspective view of a conventional rubber track.

FIG. 34 is a front sectional view of a conventional rubber track.

[Explanation of symbols]

1, 45, plate 2 meshing engagement part 6, 35, shoe 8, 11, 23, 24, 25, 26, groove 10, 40
, 50 Belt 12, 42, 52 Core wire 13 Bias 14, 43, 46, 53 Rubber 30, 31, 32, 33 Protrusion 41, 51 Core metal

Claims (5)

[Claims] Claim 1: A crawler track for a tracked vehicle, comprising an annular belt made of an elastic body, and members made of a rigid body that are fixed to the belt in parallel and at equal intervals and transmit driving force from a starting wheel to a ground contact part. An elastic crawler track with a rigid shoe. 2. The member includes a plate receiving a driving force from a starting wheel and a shoe serving as a ground contact portion, the plate and the shoe being arranged as a pair in parallel at equal intervals, and the belt The elastic crawler track with a rigid shoe according to claim 1, wherein the elastic crawler track is clamped by the plate and the shoe. 3. The elastic crawler track with a rigid shoe according to claim 1, wherein the belt, in which core metals are embedded in parallel and at equal intervals, and the shoe, which is the member, are fastened with bolts. 4. The rigid body according to claim 1, wherein the belt, in which plates receiving driving force from a driving wheel are embedded in parallel at regular intervals, and the shoe, which is the member, are fastened with bolts. Elastic tracks with shoes. 5. The member includes a plate that receives a driving force from a starting wheel and a shoe that is a grounding part, and the belt, in which cored metals are embedded in parallel and at equal intervals, is formed by the plate and the shoe. 2. The elastic crawler track with a rigid shoe according to claim 1, wherein the elastic crawler track is clamped and fastened with bolts.