JPS60448U

JPS60448U - Telescopic hydraulic excavator boom

Info

Publication number: JPS60448U
Application number: JP8636183U
Authority: JP
Inventors: 古賀　与四雄
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-06-08
Filing date: 1983-06-08
Publication date: 1985-01-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１因は、従来のパワーシャベルの概要を示す正面図、
第２図は、同じく作業範囲を示す正面図、第３図は、こ
の考案のショベルブームの概略を示す一部断面正面図、
第４図は、同じ（ショベルブームを最大に延伸した状態
の概略を示す一部断面正面図、第５図は、第３図の■−
■線断面の概略を示す拡大説明図、第６図は、第３図の
ＶＩ−ＶＩ線断面の概略を示す拡大説明図、第７図は、
同じく■−■線断面により移動式ガイドを示す拡大説明
図、第８図は、油圧経路を示す説明断面図、第９図は、
他の実施例の輪体筒型状ブーム組合せの説明図である。Ａ・・・アーム、Ｙ・・・油圧ショベルブーム、ｂ・・
・パケット、１・・・Ｎｏ、ｌブーム、２・・・Ｎ００
２ブーム、３・・・Ｎｏ、　　３ブーム、４・・・ブー
ム伸縮シリンダ、４ｒ・・・ロッド、５・・・パケット
シリンダ、８ａ、８ｂ・・・ワイヤー張力調整具、９ａ
、　　９ｂ・・・ワイヤーロープ、１０・・・前部滑車
、１１・・・後部滑車、１４ａ。１４ｂ、１４Ｃ・・・油圧ホース、１６・・・油圧チュ
ーブ。The first reason is the front view showing the outline of a conventional power shovel.
FIG. 2 is a front view showing the working range, and FIG. 3 is a partially sectional front view schematically showing the shovel boom of this invention.
Figure 4 is the same (partially cross-sectional front view schematically showing the shovel boom in its fully extended state, and Figure 5 is the same as that shown in Figure 3).
■An enlarged explanatory diagram showing the outline of the line cross section, Fig. 6 is an enlarged explanatory diagram showing the outline of the VI-VI line cross section of Fig. 3, and Fig. 7 is an enlarged explanatory diagram showing the outline of the line cross section in Fig.
Similarly, an enlarged explanatory view showing the movable guide according to the section line ■-■, FIG. 8 is an explanatory cross-sectional view showing the hydraulic path, and FIG.
FIG. 7 is an explanatory diagram of a wheel-tube-shaped boom combination according to another embodiment. A... Arm, Y... Hydraulic excavator boom, b...
・Packet, 1...No, l boom, 2...N00
2 boom, 3...No, 3 boom, 4...boom telescopic cylinder, 4r...rod, 5...packet cylinder, 8a, 8b...wire tension adjuster, 9a
, 9b...wire rope, 10...front pulley, 11...rear pulley, 14a. 14b, 14C...Hydraulic hose, 16...Hydraulic tube.

Claims

[Claims for Utility Model Registration] No. 1 hydraulic excavator booms installed on the arm of a power excavator can be slid against each other from the outside. No, 2. Formed into a three-layer cylindrical shape with No. 3 and N
The rod of the boom telescopic cylinder rotatably attached to the 001 boom is connected to the front end of the No. 2 boom, and a front pulley is also equipped, and the rear end is equipped with a rear pulley.
On the other hand, the wire rope from the wire tension adjuster attached to the telescopic cylinder was folded back at the front end of the No. 3 boom and passed through the rear pulley, and the other wire rope was also passed through the front pulley to the No. 3 boom. Fold back at the rear end and connect both to the inner rear end of the NO63 boom.Furthermore, a packet cylinder is rotatably attached to the upper inner front end, and a packet rotated by the cylinder is attached to the lower front end, and the required hydraulic pressure is applied. A telescoping hydraulic excavator boom characterized by being configured with piping.