JPH04118888U - Running noise reduction device for endless track tracks - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the running noise of tracked tracks for tracked vehicles. [Structure] A steel wire 10a is embedded in the gap between the track plate 4 and the bush 3, and an arc-shaped recess 10b that wraps around about 1/3 of the outer diameter of the bush 3, and a convex part 10c that engages between the teeth of the sprocket. A rubber helt 10 provided with this is continuously installed in an endless manner over the entire circumference inside the crawler track. Therefore, when the link plates 2a and 2b bend and wrap around the drive wheel 6,
The convex portion 10c provided on the rubber belt 10 enters between the teeth 6a of the sprocket of the drive wheel 6, is compressed and becomes a resistance, and the link plates 2a, 2b and the bush 3 come into gentle contact with the drive wheel 6 to prevent a collision. It is possible to prevent impact noise from occurring. Note that the rubber belt 10 may be a rubber belt 11 having a steel plate 11a embedded therein.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to the reduction of running noise of tracked tracks installed on tracked vehicles. It is.

0002

[Conventional technology]

Figures 4(A) and 4(B) show endless track crawlers in the prior art, with two opposing tracks. Link plates 2a and 2b, and bushes that fit into the ends of the two link plates 2a and 2b. 3 to the adjacent link plates 2c and 2d using pin 1 to construct link assembly 2. In addition, track plates 4 are mounted on the end surfaces of the link plates 2a, 2b, 2c, and 2d, respectively. Furthermore, a large number of these are connected in an endless manner to constitute the endless track track 5.

0003 As shown in Fig. 5, this type of track has link plates 2a and 2b on which track plates 4 are attached to a bush. It has a structure in which the drive wheel 6 and the idler wheel 7 are connected in an endless manner via a pin 3 and a pin 1. It is wound around and rolled by a drive wheel 6. However, in this structure, each link 2 are simply pivotally connected by pin 1, so links 2 can freely swing together. Therefore, the wrapping around the idler wheel 7 and the engagement with the driving wheel 6 are not smooth, and the ring The wheel 2 interferes and collides with the driving wheel 6 and the idler wheel 7, generating noise. As a countermeasure, follow Various ideas have been tried since then. (For example, Utility Model Publication No. 53-90343)

0004

[Problem that the idea aims to solve]

The noise generated from the tracked tracks when a tracked vehicle runs is caused by the above. Furthermore, the interference collision causes separation of the collision parts of the drive wheel and the idler wheel. Countermeasures have been devised, but although the structure is simple, it requires many parts and man-hours to implement. There are important issues to be addressed.

[0005]

[Means to solve the problem]

Two opposing link plates and bushings fitted to both ends of the two link plates. The link assembly consisting of A tracked vehicle constructed by connecting a large number of link plates in an endless manner and installing track plates on the end surfaces of the link plates. In a dual-use endless track track, a bush sandwiched between two link plates and a link plate. A rubber belt with an elastic body embedded inside is placed inside the track in the gap between the track and the track attached to the end surface. It is installed continuously in an endless manner all around the side.

[0006]

[Effect]

When the link plate bends and wraps around the idler wheel, the link joint has an elastic body inside. The elasticity of the embedded rubber belt resists the link plate from falling toward the idler wheel and gradually To prevent the link plate from hitting each part by bending and wrapping around the idler wheel. I can do it. Also, when the link plate bends and wraps around the drive wheel, a The convex part enters between the teeth of the drive wheel sprocket, is compressed, and creates resistance against the link plate and It is possible to prevent collision between the bush and the drive wheel and prevent impact noise from occurring.

[0007]

【Example】

One embodiment of the present invention will be described with reference to FIGS. 1(A), 1(B), and 1(C). A rubber belt 8 with a steel wire 8a embedded in the gap between the shoes 3 is placed around the entire inner circumference of the crawler track. They are installed continuously in an endless manner. Therefore, the link plates 2a and 2b bend against the idler wheel 7. When bending and wrapping, the joint of link 2 is a rubber bell with an elastic body 8a embedded inside. The elasticity of the plate 8 resists the link plates 2a and 2b from falling toward the idler wheels, and gradually It bends and wraps around the idler wheel 7, thus preventing the link plates 2a and 2b from hitting each part. can do. The rubber belt 8 is a rubber belt with a steel plate 9a embedded inside. It may also be set to 9.

[0008] The second embodiment of the present invention will be described with reference to FIGS. 2(A), 2(B), and 2(C). Insert a steel wire 10a into the gap between the bushes 3, and then insert a steel wire 10a into the gap between the bushes 3, about 1/3 of the outer diameter of the bushes 3. An arc-shaped recess 10b that wraps around the entire area, and a protrusion 10 that engages between the teeth of the sprocket. A rubber belt 10 provided with c is continuously installed in an endless manner all around the inside of the crawler track. ing. Therefore, when the link plates 2a and 2b bend and wrap around the drive wheel 6, the rubber The convex portion 10c provided on the belt 10 enters between the teeth 6a of the sprocket of the drive wheel 6, causing pressure The link plates 2a, 2b, the bush 3, and the drive wheel 6 become loose. It is possible to prevent a collision by contacting the object and prevent the generation of impact noise. Note that the rubber belt 10 may be a rubber belt 11 with a steel plate 11a embedded therein.

[0009] FIG. 3 shows an embodiment according to claim 3 of the present invention, in which shoes are attached to the end face of the link 2. There is nothing on both sides A and B of the inside surface of the plate 4 (the surface that does not contact the ground) parallel to the direction of vehicle travel. A large number of wire ropes 12 and steel wires 13 are bundled over all the tracks forming the limited track track. The elastic body is installed using a plate 14 and bolts 15.

0010

[Effect of the idea]

The above configuration prevents noise generation and separation of the collision parts of the drive wheels and idle wheels. It is possible to provide a tracked track.

[Brief explanation of drawings]

FIG. 1 is a diagram of a rubber belt according to claim 1 of the present invention and a crawler track equipped with the rubber belt.

FIG. 2 is a view of the rubber belt according to claim 2 of the present invention and the crawler belt on which the rubber belt is attached.

FIG. 3 is a view of the wire rope according to claim 3 of the present invention being attached to a crawler track.

FIG. 4 is a partial cross-sectional view of a crawler track according to the prior art.

FIG. 5 is a diagram in which a large number of links in FIG. 4 are connected and installed between a driving wheel and an idler wheel to form an endless track track.

[Explanation of symbols]

1 pin 2 links 3 Bush 4 Tracks 5 Tracks 6 Drive wheel 7 Idler wheel 8 Rubber belt 9 Rubber belt 10 rubber belt 11 rubber belt 12 wire 13 steel wire 14 plates 15 volts

Claims (3)

[Scope of utility model registration request] Claim 1: A link assembly consisting of two opposing link plates and a bush sandwiched between both ends of the two link plates is assembled by a pin inserted through the two link plates and the bush. In a tracked crawler for a tracked vehicle that is pivotally connected in an endless manner and is configured with a track plate attached to the end face of the link plate, a bush sandwiched between two link plates and a bush attached to the end face of the link plate. A running noise reduction device for a track crawler, characterized in that an elastic belt having an elastic body embedded therein is continuously installed all around the inside of the crawler in a gap between the crawler and the crawler. 2. According to claim 1, the elastic belt having an elastic body embedded therein further includes an arc-shaped recess that wraps around an outer diameter portion of the bush over about 1/3 of the outer diameter of the bush; A running noise reduction device for an endless track crawler, characterized in that an elastic belt having a convex portion that engages between the teeth of a sprocket is continuously installed over the entire inner circumference of the crawler. [Claim 3] On both sides parallel to the vehicle traveling direction of the inside surface that does not contact the ground of the track plate attached to the end surface of the link plate,
A running noise reduction device for a track crawler, characterized in that an elastic body is continuously installed in an endless manner over all the tracks forming the track track.