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CN-121990067-A - Elastic crawler belt

CN121990067ACN 121990067 ACN121990067 ACN 121990067ACN-121990067-A

Abstract

The invention discloses an elastic crawler belt, which is characterized in that a core gold is buried in a crawler belt body made of elastic materials at equal intervals, a pair of first roller rolling channels arranged along the rotation direction of the crawler belt are arranged on two sides of the width direction of the crawler belt on the inner side of the crawler belt, and a pair of second roller rolling channels arranged along the rotation direction of the crawler belt are arranged on the inner side of the width direction of the crawler belt, wherein the core gold comprises a pair of first rolling parts corresponding to the first roller rolling channels, the first rolling parts are composed of a pair of side edge parts along the rotation direction of the crawler belt and a pair of inclined edge parts obliquely arranged relative to the rotation direction of the crawler belt and form a substantially diamond shape in plan view, and the inclined edge parts on one side core gold side and the inclined edge parts on the other side core gold are arranged in a state of being partially overlapped in the rotation direction of the crawler belt and are oppositely arranged at a preset interval between adjacent core gold. The advantage is that noise and vibration can be further reduced and riding comfort is improved.

Inventors

  • Cui Rongzai

Assignees

  • 杰尼士产业株式会社

Dates

Publication Date
20260508
Application Date
20260325
Priority Date
20260220

Claims (6)

  1. 1. An elastic crawler, comprising: A crawler body (11) made of an elastic material, and core wires (12) embedded in the crawler body (11) at equal intervals in the crawler rotation direction; Wherein a pair of first roller rolling tracks (14) arranged along the track revolution direction are arranged on both sides of the track width direction on the inner side of the track, and a pair of second roller rolling tracks (15) arranged along the track revolution direction are arranged on the inner side of the track width direction of the pair of first roller rolling tracks (14); the core (12) includes a pair of first rolling portions (24) arranged on both sides in the track width direction corresponding to the first roller rolling path (14); The first rolling portion (24) is constituted by a pair of side edge portions (24 a,24 b) arranged in a track turning direction and a pair of inclined edge portions (24 c,24 d) arranged obliquely with respect to the track turning direction, and is formed into a substantially diamond shape in plan view; Between the adjacent core wires (12), the inclined edge portion (24 c) of the first rolling portion (24) on one side of the core wire (12) and the inclined edge portion (24 d) of the first rolling portion (24) on the other side of the core wire (12) are in a partially overlapped state in the track revolution direction and are disposed opposite to each other with a predetermined interval therebetween.
  2. 2. The elastic crawler of claim 1, wherein: Each of the core wires (12) includes a pair of second rolling portions (28) arranged on both sides in a track width direction in correspondence with the second roller rolling path (15); The second rolling portion (28) is constituted by a pair of side edge portions (28 a,28 b) arranged in the track turning direction and a pair of inclined edge portions (28 c,28 d) arranged obliquely with respect to the track turning direction, and forms a substantially diamond shape in plan view; Between the adjacent core wires (12), the inclined edge portion (28 c) of the second rolling portion (28) on one side of the core wire (12) and the inclined edge portion (28 d) of the second rolling portion (28) on the other side of the core wire (12) are in a partially overlapped state in the track revolution direction and are disposed opposite to each other with a predetermined interval therebetween.
  3. 3. The elastic crawler of claim 2, wherein: in the first rolling part (24) and the second rolling part (28) adjacent to each other in the track width direction, the inclined edge parts (24 c,28 c) and (24 d,28 d) are inclined in the same direction.
  4. 4. The elastic crawler of claim 2, wherein: in the first rolling part (24) and the second rolling part (28) adjacent to each other in the track width direction, the inclined edge parts (24 c,28 c) and (24 d,28 d) are inclined in opposite directions.
  5. 5. The elastic crawler of any of claims 1 to 4, wherein: The core wires (12) are provided with lateral displacement preventing protrusions (25, 26) on both sides in the track width direction, the lateral displacement preventing protrusions (25, 26) protruding to both sides in the track rotation direction and preventing lateral displacement from each other in the track width direction by partially overlapping in the track rotation direction between the adjacent core wires (12); the lateral displacement preventing projections (25, 26) are arranged corresponding to the first rolling portions (24) and on the ground contact surface side thereof.
  6. 6. The elastic crawler of claim 5, wherein: the first rolling parts (24) between adjacent core wires (12) have a larger pitch in the track width direction than the pitch in the track width direction of the lateral displacement preventing projections (25, 26) between adjacent core wires (12).

Description

Elastic crawler belt Technical Field The present invention relates to an elastic crawler belt for a crawler belt device such as a construction machine. Background An elastic crawler for a crawler apparatus has a structure in which a plurality of cores are embedded at equal intervals in a crawler rotation direction inside a crawler body made of an elastic material such as rubber. In this type of elastic crawler, lateral displacement preventing protrusions protruding toward both sides in the crawler turning direction are provided on both sides in the crawler width direction of the core, and when a lateral external force is applied during turning or traveling on a slope, the lateral displacement preventing protrusions of adjacent two cores are engaged with each other in the crawler width direction to prevent lateral displacement between the cores, and at the same time, the upper surfaces of the lateral displacement preventing protrusions are used as rolling portions, so that the roller can roll continuously on the rolling portions of the cores when the crawler body turns (refer to patent document 1: japanese patent No. 7002595). In the elastic crawler described in patent document 1, the rolling portion of each core is constituted by a central portion of a rectangular shape in plan view, and first and second protruding portions protruding from the central portion to both sides in the crawler turning direction, and lateral displacement preventing protrusions having substantially the same shape are formed on the ground contact surface sides of the first and second protruding portions. The first protruding part and the second protruding part protrude with a substantially constant width along the track rotation direction and are arranged at a position which is staggered with each other along the track width direction, and the first protruding part on one side core and the second protruding part on the other side core are mutually close to each other along the track width direction between adjacent cores and are partially overlapped along the track rotation direction. When the roller rolls on the inner side of the elastic crawler, the contact portion between the roller and the elastic crawler is linear in the crawler width direction (hereinafter referred to as a roller contact line), and moves on the inner side of the elastic crawler in the crawler turning direction. In the above-described conventional elastic crawler, since the first protruding portion and the second protruding portion between the adjacent core wires are arranged to partially overlap in the crawler turning direction, the roller contact line can be moved on the rolling portion without interruption, so that stable running can be realized. However, in the conventional elastic crawler belt, there is a portion where the length of the roller contact line changes sharply, and thus there is still room for improvement in terms of riding comfort, noise, vibration, and the like. Disclosure of Invention The invention aims to provide an elastic crawler belt which can further reduce noise and vibration and improve riding comfort. The technical scheme adopted for solving the technical problems is as follows: The invention provides an elastic crawler, which comprises a crawler body made of elastic materials and a core gold buried in the crawler body at equal intervals in a crawler rotation direction, wherein a pair of first roller rolling channels arranged along the crawler rotation direction are arranged on two sides of the crawler width direction of the inner side of the crawler, and a pair of second roller rolling channels arranged along the crawler rotation direction are arranged on the inner side of the crawler width direction of the pair of first roller rolling channels, the core gold comprises a pair of first rolling parts arranged on two sides of the crawler width direction corresponding to the first roller rolling channels, the first rolling parts are composed of a pair of side edge parts arranged along the crawler rotation direction and a pair of inclined edge parts obliquely arranged relative to the crawler rotation direction, and form a roughly diamond shape in a plane view, and the inclined edge parts of the first rolling parts on one side of the core gold and the inclined edge parts of the first rolling parts on the other side of the core gold are in a state of partial overlapping in the crawler rotation direction and are arranged at a preset opposite interval between the adjacent core gold. Further, each of the core wires may include a pair of second rolling portions disposed on both sides in a track width direction corresponding to the second roller rolling path, the second rolling portions being constituted by a pair of side edge portions disposed in a track turning direction and a pair of inclined edge portions disposed obliquely with respect to the track turning direction and forming a substantially diamond shape in plan view, and the inclined e