JPH0263286U

JPH0263286U -

Info

Publication number: JPH0263286U
Application number: JP14370988U
Authority: JP
Priority date: 1988-11-02
Filing date: 1988-11-02
Publication date: 1990-05-11

Description

[Brief explanation of drawings]

第１図は本考案の一実施例としてのアイドラホ
イールの支持構造を示す断面図、第２図はその緩
衝装置を示す分解斜視図、第３図〜第６図は緩衝
装置のそれぞれ異なつた実施例を示す断面図、第
７図ａ，ｂは油圧シヨベルの揺動を示す説明図、
第８図はその車体揺動現象を示す図、第９図ａは
アイドラホイールの前後方向の支持構造を示す平
面図、第９図ｂは同側面図、第１０図は第９図ｂ
のＸ―Ｘ線断面図である。１……アイドラホイール、２……角ベアリング
、８……下側横支持部材、７……上側横支持部材
、１０……緩衝装置、１１……突部、１５……受
部、１９……小孔、２０……隙間、２１……アイ
ドラサポート部。 Fig. 1 is a sectional view showing an idler wheel support structure as an embodiment of the present invention, Fig. 2 is an exploded perspective view showing the shock absorbing device, and Figs. 3 to 6 show different implementations of the shock absorbing device. A sectional view showing an example, FIGS. 7a and 7b are explanatory views showing the swinging of a hydraulic excavator,
Fig. 8 is a diagram showing the vehicle body rocking phenomenon, Fig. 9a is a plan view showing the longitudinal support structure of the idler wheel, Fig. 9b is a side view of the same, Fig. 10 is Fig. 9b
FIG. DESCRIPTION OF SYMBOLS 1...Idler wheel, 2...Square bearing, 8...Lower side support member, 7...Upper side support member, 10...Buffer device, 11...Protrusion, 15...Receiving part, 19... Small hole, 20... gap, 21... idler support part.

Claims

[Claims for Utility Model Registration] (1) Between a bearing member that bears both ends of the rotating shaft of the idler wheel and at least one support member of a pair of upper and lower support members that support the upper and lower surfaces of the bearing member. An idler wheel support structure for a crawler type undercarriage device, characterized by interposing a buffer device to buffer movement from the bottom to the top. (2) The shock absorber consists of a shock absorber provided between at least one of the upper surface or the lower surface of the bearing member and a support member facing the upper surface or the lower surface, and the shock absorber comprises a piston-shaped projection. , a cylindrical receiving part into which the protruding part fits and is substantially fluid-tight, and a small hole or gap that gradually releases the fluid pressurized within the receiving part by the pushing of the protruding part. The idler wheel support device for a crawler type undercarriage device according to claim 1, characterized in that: (3) The shock absorber includes a shock absorber provided between at least one of the upper surface or the lower surface of the bearing member and a support member facing the upper surface or the lower surface, and the shock absorber includes a protrusion and The crawler type suspension device according to claim 1, further comprising a receiving part having a spring compressible by the protruding part, and the spring of the receiving part is compressed and buffered by pressurization of the protruding part. idler wheel support device. (4) Claim 2 characterized in that a shock absorbing device is disposed vertically facing each other between the upper and lower surfaces of the bearing member and the support member facing the upper and lower surfaces.
Or an idler wheel support device for a crawler suspension device according to claim 3.