JPS61141363U

JPS61141363U -

Info

Publication number: JPS61141363U
Application number: JP2370385U
Authority: JP
Priority date: 1985-02-21
Filing date: 1985-02-21
Publication date: 1986-09-01

Description

[Brief explanation of the drawing]

図は本考案の実施例を示し、第１図イはカウン
タウエイト取外し準備状態、ロは同取外し途中、
ハは同取外し完了状態をそれぞれ示す一部断面側
面図、第２図は第１図イ状態、第３図は同ハ状態
のそれぞれ部分拡大側面図である。Ａ…ベースマシン、Ａ_２…上部旋回体、１…旋
回体フレーム、２…作業装置、２１…ブーム、２
２…アーム、２３…バケツト、３…カウンタウエ
イト、４…ウエイト脱着用のフレーム、５…第１
シーブ、６…リンク、７…第２シーブ、８…第１
ロープ、９…第２ロープ。 The figures show an embodiment of the present invention, in which Figure 1A shows a state in which the counterweight is being prepared for removal, and Figure 1B shows a state in which the counterweight is being removed.
FIG. 2 is a partially enlarged side view of the state shown in FIG. 1A, and FIG. 3 is a partially enlarged side view of the state shown in FIG. A... Base machine, A ₂ ... Upper revolving structure, 1... Revolving structure frame, 2... Working device, 21... Boom, 2
2...Arm, 23...Bucket, 3...Counterweight, 4...Frame for attaching and removing weights, 5...First
Sheave, 6...Link, 7...Second sheave, 8...First
Rope, 9...Second rope.

Claims

[Scope of utility model registration request]

At the front of the revolving body frame of the base machine, there is a boom that can freely rotate up and down, an arm that is attached to the tip of the boom so that it can rotate back and forth, and a bucket that is attached to the tip of the arm so that it can rotate back and forth. In a hydraulic excavator, a working device is provided, and a counterweight is removably provided at the rear end of the revolving body frame. a frame for removing and removing a weight, a first sheave whose position remains unchanged provided on the frame at the upper position of the counterweight, and a link pivotally connected to the frame so as to be rotatable in the front and rear directions with an intermediate portion as a fulcrum. and a second sheave provided at one end of the link at a lower position of the first sheave, and a first rope connecting the boom of the working device and the counterweight via both the first and second sheaves. and a second rope connecting the arm of the working device and the other end of the link, the counterweight is moved up and down by the up-and-down rotation of the boom, and the above-mentioned rope is moved up and down based on the back and forth rotation of the arm. A counterweight attachment/detachment device for a hydraulic excavator, characterized in that the counterweight can be moved back and forth by the back and forth rotation of a link and a second sheave.