JPS5910527U

JPS5910527U - Hydraulic clutch hydraulic regulator

Info

Publication number: JPS5910527U
Application number: JP10435782U
Authority: JP
Inventors: 田中　隆茂; 中嶋　貞和; 武男加藤; 苅田　広
Original assignee: ヤンマーディーゼル株式会社
Priority date: 1982-07-12
Filing date: 1982-07-12
Publication date: 1984-01-23

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図は本考案の実施例１における油圧調節装置の全体
系統図、第２図は第１図の要部拡大断面図、第３図、第
４図、第５図及び第６図は第２図の流量調整弁の作用を
示す一連の拡大断面図、第７図は第３図の逃し流量制御
バルブの拡大断面図、第８図は従来例と本考案との比較
における油圧と時間との関係線図、第９図は本考案の実
施例２における油圧調節装置の要部断面図、第１０図は
第９図のり、レー回路図、第１１図は本考案の実施例３
における油圧調節装置の要部断面図、第１２図−は第１
１図のリレー回路図である。１・・・油圧ポンプ、３Ａ、　　３Ｂ・・・摩擦板、５
・・・低圧調圧弁、６・・・油圧供給路、１７・・・流
量調整弁、１８・・・前・後進切換レバー、１９・・・
バネ、２０・・・嵌入時作動１ストン、２１・・・逃し
流量制御バルブ、２２・・・空洞部、２３・・・シーリ
ング部、２９−・・リレー回路、３０・・・電磁弁、３
２・・・回路センサ、３３・・・リレー回路、３９・・
・絞り弁装置。Fig. 1 is an overall system diagram of a hydraulic control device according to Embodiment 1 of the present invention, Fig. 2 is an enlarged sectional view of the main parts of Fig. 1, and Figs. 3, 4, 5, and 6 are Figure 2 is a series of enlarged cross-sectional views showing the action of the flow rate control valve, Figure 7 is an enlarged cross-sectional view of the relief flow control valve shown in Figure 3, and Figure 8 is a diagram showing the relationship between oil pressure and time in a comparison between the conventional example and the present invention. FIG. 9 is a cross-sectional view of the main parts of the hydraulic adjustment device in Embodiment 2 of the present invention, FIG. 10 is a circuit diagram of FIG. 9, and FIG. 11 is Embodiment 3 of the present invention.
12- is a cross-sectional view of the main part of the hydraulic adjustment device in Fig. 1.
FIG. 1 is a relay circuit diagram of FIG. 1...Hydraulic pump, 3A, 3B...Friction plate, 5
...Low pressure regulating valve, 6...Hydraulic pressure supply path, 17...Flow rate regulating valve, 18...Forward/reverse switching lever, 19...
Spring, 20... 1 stone activated when inserted, 21... Relief flow rate control valve, 22... Cavity, 23... Sealing part, 29-... Relay circuit, 30... Solenoid valve, 3
2...Circuit sensor, 33...Relay circuit, 39...
- Throttle valve device.

Claims

[Scope of utility model registration request]

In the hydraulic pressure supply path leading from the hydraulic pump driven by the engine to the hydraulic clutch, when the pressure is low, the relief area of the drain port is changed to keep the hydraulic pressure in the hydraulic supply path below a certain pressure (1), and when the pressure exceeds the certain pressure, the above-mentioned In addition to providing a low pressure regulating valve with a fully open relief area, when a hydraulic crack occurs in the engine, the relief flow rate of hydraulic oil from the low pressure regulating valve is temporarily throttled, and the hydraulic pressure applied to the hydraulic clutch is increased. A hydraulic pressure adjustment device for a hydraulic clutch, characterized in that a hydraulic pressure adjustment device is provided.