JPH04133877A - Rubber crawler belt for crawler vehicle - Google Patents

Abstract

PURPOSE:To dispense with movement of introducing wheels to activating wheels side and easily mount a crawler belt on a running device by forming a rubber crawler into a beltlike link, providing hooklike metal fittings for linking on both ends, and installing a linking crawler plate mounted on the linking part. CONSTITUTION:On both ends of a beltlike link of a rubber crawler 10, hooklike metal fittings 23, 24 for linking having a plurality of bolt holes. At mounting on a vehicle body, after winding the crawler belt 10 around a running device ring-likely, the hooklike metal fittings 23, 24 are engaged with each other and together with a linking crawler plate 40 tightened with bolts 50, washers 52, and nuts 51, through spacers of steel pipe. The connecting crawler plate 40 is consituted so that a core metal having a meshingly engaging part 32 and rolling rail faces 53 is welded on the center part of one face of a base plate 41 through a seat plate 42, and on the other face of the base plate 41 a lug rubber 44 is vulcanized and molded. The rubber crawler belt 10 can be divided into two links or over four links.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rubber track for a tracked vehicle, and particularly to a rubber track suitable for construction machines such as bulldozers and hydraulic excavators that require traction force.

[Conventional technology]

Conventionally, in tracked vehicles such as bulldozers, a plurality of upper and lower rollers are provided above and below a track frame provided between a guide wheel and a starting wheel, respectively, and a track is wrapped around each of these wheels. In recent years, integral rubber tracks have been used instead of iron shoes to prevent vibration and noise from occurring. Figure 1 is a front view of the running device of a tracked vehicle equipped with rubber tracks, where 1 is a guide wheel, 2 is a starting wheel,
3 is the track 7 frame, 4 is the upper wheel, 5 is the lower wheel, 10
2 is a rubber crawler track, 20 is a rubber belt portion, and 30 is a lug portion. FIG. 9 is a perspective view of a conventional rubber crawler track, in which the rubber belt portion 20 and lug portions 30 are integrally molded into an annular shape. FIG. 10 is a cross-sectional view of the lug portion 30. On the lower side of the core metal 31, which has the meshing engagement portion 32 of the driving wheel and the rolling rail surface 33 of the rolling wheel, there are a plurality of reinforcing members in the band-like direction. wires 21 are arranged. Core bar 31 and wire 2
1 is integrally vulcanized and molded with rubber 22 to form a rubber track. The wire 21 is annularly embedded inside the rubber bell 1 part [), and the vibration and noise during cleaning are suppressed by the rubber (V type 1 and sound absorption effect f). Extremely low (d) and extremely effective (, "C").

(Problem 1 to be solved by the invention 1) However, according to the structure of 18, rubber order = s'
i;t.

Due to the annular integral skin type, there are 11 problems.
).

(1)! When attaching and removing the belt, 6. Is it necessary to move the guide wheel to the starting wheel side as shown by the dotted line A in Figure 1? It requires more oil than the installation and removal of the crawler track, so 4.2. Maf6,
When installing, if you hang the 17 inch crawler with clay...2, you will need a jig 1'L for assembly to hold the track in the shape when installed. Dedicated part for car body and assembly
W+ is required, and assembly requires a large amount of man-hours.

(2) During work, there are times when you accidentally hit a sharp rock or a steel section, and the rubber track is cut along with the 1-tear of the strength part H. In case, :f ノ,
If you replace the entire Jll belt, it will cost 11゛, a lot (・“) per month if you replace the entire Jll belt. '/-When transporting the crawler track, the load is large and the transportation cost is high11<, and many locations are required for the stopper46.1, this invention solves the above problem C'
Nasati...! It is a tracked vehicle that can be easily attached and detached due to the τ type, and can also be economically replaced when cutting tracks (11).
] fi, providing crawler tracks, 2′>ζ, and the like.

('1-Step for Solving the Problems') To achieve the above objective, -
fLM band first invention i, -In the band direction/parallel equally spaced "-1 driving transport mesh C part and the rolling surface of the rolling wheel, the core metal is buried. Arrangement [2, In the tracked vehicle's fi, crawler track (, above, -fl, ff belt is a belt-shaped series, and both ends of the I'l record series are connected in a ring. The invention is characterized by the following features: 1) a hook-shaped metal fitting with a lugs attached to the hook-shaped metal fittings; 1, which is characterized by a connected belly board Ru-・, Jl!
ing,.

[Function] According to the above structure, the rubber 1IWl band is connected to a belt-like chain and a hook-shaped metal fitting is provided at both ends for connection, and the connecting track plate attached to the connecting part of A is connected to the step ft f:, so that the running of the vehicle body is When installing a crawler track, use the conventional iron; similar to the installation of the crawler track in step 1, wrap each rolling wheel (wrap the track around the track and connect the hook-shaped metal fittings together with the connecting belly plate. The crawler belt is formed in an annular shape by the steps 5, and the vehicle body 4. A place for wrapping the crawler belt is created.

Embodiments Hereinafter, embodiments of the gono and WI bands of a tracked vehicle according to the present invention will be described with reference to the drawings.

FIG. 2 is an overall perspective view of the first example of the rubber crawler according to the present invention, and FIG. 3 is a perspective view of the crawler in the form of a belt. As shown in FIG. 3, hook-shaped metal fittings 23 and 24 for connecting a plurality of bolt holes 215 are attached to both ends of a series of band-shaped rubber a*io. When this is installed on the vehicle body, wrap it in a ring shape as shown in Fig. 1 (A-row device J), Fig. 2
Engage 4 (5, connect belly plate 40, I bolt 50, sonosha 52, J2 and chit 51 and C1- through steel pipe subedze 5:3 l, 5 and tighten 17T belt in shape S :
4 Ru.

Hereinafter, details of the structure of the connecting part 4-Explanation 4-1, Fig. 4 (
FIG. 13 is a top view of the connecting part; FIG.
This is a cross-sectional view of (,'--C in the figure). A plurality of wires 21, which are strength members in the S band-like direction, are vulcanized and molded into a body (8, formed by H, 7, 4, j),
H band 1 (hook-shaped metal fittings 23, 24i at both ends of l; l Fig. 6 ζ, '-Small-like rubber bell: ・ Inside the rubber 22 of part 20 i5 Welded to the buried wire 21 Jl ..

FIG. 1 is a cross-sectional view of the connecting belly plate 4 ( ), and the central part of one surface of the base plate 41 has a meshing engagement portion;
U: The core metal 43 that connects 3 and 74-i is inserted through the seat plate 42,
TeffI! It is worn. A lug rubber 44 is vulcanized and molded on the thin surface of the substrate 41, and is attached to the substrate 41. Multiple bolt holes 45 are provided (Zura deori, Raggot,
447: i; in the hole 4 at the same position as the bottom hole 45
6 and a counterbore hole 47 are provided. The diameter of the hole 46 is equal to the outer diameter of the spacer 53 described above. The positions of the plurality of bolt holes 45 match the bolt holes 25 of the hook-shaped fittings 23, 24.

When connecting the rubber crawler tracks 10 in a circular manner, as shown in FIG. 5, the hook-shaped fittings 23 and 24 are engaged, and the connecting track plates 40 are arranged in the connecting part as shown in FIGS. 5 and 7. The bolt holes 25 and 45 are aligned, and the bolts 50, washers 52, and nuts 51 are tightened with the spacers 53 in between.

FIG. 8 is a perspective view showing a second embodiment of the present invention, in which the rubber crawler 10 is divided into three rubber crawlers 11, 1.2° 13, and each is connected at the x, y, and z parts. It is. The division method may be two or four or more.

〔Effect of the invention〕

As described in detail above, in the present invention, the rubber crawler track is formed into a belt-like chain, and hook-shaped metal fittings are attached to both ends of the chain so that they are fastened together with the connecting track discs, so that the following effects are achieved.

(1) When attaching and detaching the vehicle body, it can be attached and detached using the same operations as conventional iron crawler tracks, so there is no need to increase the amount of movement of the guide wheels. Therefore, no dedicated oil pressure/linders are required. Further, an assembly jig for maintaining the shape of the crawler track is not required, and the number of assembly steps can be reduced.

(2) According to the second embodiment, when the rubber crawler belt is cut, it is possible to replace only the cut chain, which is extremely economical.

(3) Because it is a band-shaped ream, the seeds raised are small, making it economical to transport and stock.

[Brief explanation of the drawing]

Fig. 1 is a front view of the traveling device of a tracked vehicle, Fig. 2 is an overall perspective view of the first embodiment of the rubber track of the present invention, Fig. 3 is a perspective view of the rubber track developed into a band shape, and Fig. 4 is a perspective view of the connecting shoe, FIG. 5 is a front view of the connecting part, FIG. 6 is a sectional view taken along line B-B in FIG. 5, and FIG. 7 is a cross-sectional view taken along line C-C in FIG. 5. 8 is an overall perspective view of a second embodiment of the rubber crawler according to the present invention, FIG. 9 is an overall perspective view of a conventional rubber crawler, and FIG. 10 is a sectional view of a lug portion of a conventional rubber crawler. It is. 20...Rubber belt part 21...Wire 23.24...Hook-shaped metal fitting 40...Connection track board

Claims (2)

[Claims] (1) In a rubber crawler track for a tracked vehicle in which core metals having a meshing engagement portion of a driving wheel and a rolling rail surface of a rolling wheel are embedded in parallel at equal intervals in a belt-shaped direction, the rubber crawler track has a belt-like shape. 1. A rubber crawler track for a tracked vehicle, characterized in that the track is continuous, and has hook-shaped metal fittings at both ends of the series for connecting the series in an annular manner. (2) The rubber crawler belt for a tracked vehicle according to claim (1), further comprising a connecting track plate made of the core metal and a lug, which is attached to the connecting portion when the hook-shaped metal fittings are connected.