JPS62151179U

JPS62151179U -

Info

Publication number: JPS62151179U
Application number: JP4055286U
Authority: JP
Priority date: 1986-03-19
Filing date: 1986-03-19
Publication date: 1987-09-25

Description

[Brief explanation of the drawing]

第１図および第２図は本考案の実施例に係り、
第１図はステアリング用油圧回路を示す回路図、
第２図は第１図中のステアリング角検出器を前、
後フレーム間に設けた状態を示す要部詳細図、第
３図ないし第６図は従来技術に係り、第３図はホ
イールローダを示す全体図、第４図は第３図に示
すホイールローダの要部詳細図、第５図は第４図
に示すホイールローダをステアリングエンドまで
ステアリングした状態で示す要部詳細図、第６図
はステアリング用油圧回路を示す回路図である。１……ホイールローダ、２……前フレーム、３
……後フレーム、４……センターピン、８……ス
テアリングシリンダ、１０……ステアリング用ポ
ンプ、１１，２５……タンク、１３……ステアリ
ング弁、１４……油圧モータ、１５……回動軸、
２１……流量制御弁、２２……ステアリング角検
出器、２２Ｂ……プツシユロツド、２４……パイ
ロツト圧供給回路。 1 and 2 relate to an embodiment of the present invention,
Figure 1 is a circuit diagram showing the steering hydraulic circuit.
Figure 2 shows the front of the steering angle detector in Figure 1.
3 to 6 are related to the prior art, FIG. 3 is an overall view showing the wheel loader, and FIG. 4 is a detailed view of the wheel loader shown in FIG. 3. 5 is a detailed view of the main parts showing the wheel loader shown in FIG. 4 in a state where the wheel loader is steered to the steering end, and FIG. 6 is a circuit diagram showing the steering hydraulic circuit. 1...Wheel loader, 2...Front frame, 3
... Rear frame, 4 ... Center pin, 8 ... Steering cylinder, 10 ... Steering pump, 11, 25 ... Tank, 13 ... Steering valve, 14 ... Hydraulic motor, 15 ... Rotating shaft,
21...Flow rate control valve, 22...Steering angle detector, 22B...Push rod, 24...Pilot pressure supply circuit.

Claims

[Scope of utility model registration request]

A wheel loader comprising a steering pump, a steering cylinder that performs steering using pressure oil from the pump, and a steering valve that supplies pressure oil from the pump to the steering cylinder according to the amount of operation of a steering operation means. In the hydraulic circuit for steering, the flow rate of pressure oil is reduced between the steering pump and the steering valve when the steering is performed near the steering end, and the flow rate of the pressure oil is increased when steering to the neutral side from this state. A hydraulic circuit for a wheel loader characterized by being provided with a flow control valve.