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1. 发明专利

JPS61255288A DOUBLE SHAFT HYDRAULIC MOTOR 失效
公开(公告)号：JPS61255288A
公开(公告)日：1986-11-12
申请号：JP9618685
申请日：1985-05-07
申请人： SUMITOMO EATON KIKI KK
发明人： NAKAZAWA AKIJI
IPC分类号： B60K17/04 , F03C1/26 , F03C2/08 , F04C2/10
摘要： PURPOSE:To provide a compact double output shaft hydraulic motor by providing at both left and right sides the output shafts of the hydraulic motor of such a type as an external gear makes planet motion in an internal gear. CONSTITUTION:A ring 23 is formed on the inner periphery with internal gear teeth 22. External gear teeth 24 is provided inside the internal gear teeth, while a rotor 25 is disposed which makes planet motion. The rotation of the rotor 25 about its own axis is transmitted to left and right output shafts 29, 38 through splines 32, 37 and 35, 40 of left and right drives 33, 36 engaging the inner periphery of the rotor to rotate the left and right output shafts 29, 38 in the same direction with the same speed so that power can be generated to both left and right sides without needing any surplus power transmitting mechanism.

2. 发明专利

JPH074340A BRAKE DEVICE OF HYDRAULIC MOTOR 失效
公开(公告)号：JPH074340A
公开(公告)日：1995-01-10
申请号：JP14581493
申请日：1993-06-17
申请人： SUMITOMO EATON KIKI KK
发明人： HATTA NORIO , NAKAZAWA AKIJI
IPC分类号： F03C2/08 , F04C14/06 , F04C14/28 , F04C15/00
摘要： PURPOSE:To provide the brake device of a hydraulic motor of which the construction is simple, the cost is low, and the output shaft can be stopped by a small torque. CONSTITUTION:This brake device is provided with a Geroler assembly 17 in which an annular ring 23 and an annular rotor 24 are engaged with each other, and the axis of the ring 23 is eccentrically arranged to the axis of the rotor 24. Working oil is supplied in order into the chamber between the ring 23 and the rotor 24, the rotor 24 rotates along the internal teeth of the ring 23 and revolves around the axis of the ring 23. A drive shaft 25 is connected between the rotor 24 and an output shaft 12, and an engaging means obstructing revolution of the drive shaft 25 is provided on the end face on the rotor 24 side of the drive shaft 25. When torque is reversely transmitted from the load to the output shaft 25 so as to revolve the drive shaft, revolution of the drive shaft 25 is obstructed by the engaging means, and hence rotation of the output shaft 12 is stopped.

3. 发明专利

JPH09229021A TIMER VALVE OF MECHANICAL BRAKE DEVICE FOR HYDRAULIC MOTOR 失效
公开(公告)号：JPH09229021A
公开(公告)日：1997-09-02
申请号：JP6170696
申请日：1996-02-23
申请人： SUMITOMO EATON KIKI KK
发明人： NAKAZAWA AKIJI
IPC分类号： F16K21/14 , F15B11/00 , F15B11/08 , F15B21/10
摘要： PROBLEM TO BE SOLVED: To generate a specified delay time in order to return to operation from the release condition of a mechanical brake device for a hydraulic motor. SOLUTION: A timer valve 20 is provided in a valve main body 22, and provided with a changeover valve means constituted by a changeover valve spool 34 movable between the operation release position of a mechanical brake device 3 where a port P2 and a port P3 are communicated to each other by fluid and the mechanical brake operating position where a port P3 and a port P4 are communicated to each other by fluid. The timer valve is further provided with a changeover valve spool control means constituted of a closed cylinder chamber 58 filled with a fixed quantity of oil, and a spring pushed piston 60 reciprocatably provided in the closed cylinder chamber in relation to the spool of the changeover means and separating the closed cylinder chamber into two devided chambers. An orifice 74 is provided on the piston in the closed cylinder chamber. A delay time is essentially the function of the spring force of the spring energizing the piston and the opening size of the orifice.

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