专利摘要:
A hydromechanical transmission including an input shaft, an axial piston hydraulic pump assembly associated with the shaft to be driven thereby, a pivotal swash plate operatively associated with the pump for selectively varying the displacement thereof, an axial piston hydraulic motor assembly coaxial with the pump, and a floating valve plate disposed between and engaging the pump and motor. A sun gear is carried by the motor, while a ring gear is carried by the pump. A rotatable output carrier is coaxial with the shaft and carries at least one planet gear engaged with both the sun and ring gears. The output of the transmission is taken from the carrier.
公开号:SU912057A3
申请号:SU772520153
申请日:1977-09-09
公开日:1982-03-07
发明作者:Б.Сагден Кеннет
申请人:Сандстрэнд Корпорейшн (Фирма);
IPC主号:
专利说明:

(5Y HYDRAULIC DRIVE
The invention relates to hydraulic engineering and can be used in hydraulic transmissions of transport machines, aircraft, general-purpose machines.
A hydraulic drive is known that contains an axial-piston pump with a movable swashplate and a rotating cylinder block and an axial piston motor mounted coaxially to it, connected by a common distribution disk mounted between the cylinder blocks of the pump and the motor, gear, and output shaft D: I.15
A disadvantage of the known device is the separation of the transmission channels of the Power - hydraulic and mechanical, which leads to a low efficiency of the device.
The purpose of the invention is to increase the efficiency of the drive
This goal is achieved by the fact that a gear wheel with internal clutch is installed on the cylinder block.
The pump's shot, sun gear with external gearing - on the engine block, and the planetary gear mounted on the output shaft, made in the form of a hollow cylinder, covering the engine block.
The distribution disc is provided with a hollow shank for supplying the working fluid to the disc.
In addition, a distribution disk is installed between the cylinder blocks of the motor and the pump with the possibility of axial and radial displacements.
The drawing shows the drive section. ;
Water: contains axial piston pump 1 with movable inclined washer 2 and rotating cylinder block 3 connected to the drive shaft, and axial piston motor 5 mounted coaxially to it and connected with a distribution disk 6 installed with axially and radial displacements between blocks 3 and 7 of the cylinders of pump 1 and
3912
motor 5. The distribution disk 6 is made with a hollow shank 8 for supplying the working fluid to the disk 6. Gear gear 9 is formed by a gear wheel 10 with internal gearing mounted on the block 3 of the pump 1 cylinders, sun gear 11 with external gearing, ycja nozzle on the motor cylinder block 7 of the motor .5 and the planetary gear 12 behind the fixed output shaft 13, removed in the form of a hollow cylinder k, covering the block 7 of the cylinder of the motor 5.
During operation, a drive with a constant speed on the output shaft 13 a speed sensor (not shown) controls the change in position of the inclined washer 2, and thereby adjusts the performance of pump 1. The number of turns of the motor 5 is determined by the volume of fluid supplied to it by the pump 1 at each time point, and the speed of rotation of the wheel 10 and the sun gear 11 changes as well as the resultant speed of rotation of the planetary gear 12, which ensures a constant number of revolutions of the shaft 13 at the drive output.
The cylinder blocks 3 and 7 rotate in the same direction, albeit at different speeds, and the transmitted hydraulic torque is summed with the torque transmitted mechanically.
The proposed version allows the Drive to be made more compact, more in weight, which is due to. its higher power density and efficiency, the implementation of planetary transmission allows for better power separation
four
between the channels of hydraulic and mechanical transmission.
权利要求:
Claims (3)
[1]
1. Hydraulic drive containing axial-piston pump with movable inclined washer and rotating cylinder block and axial-piston motor mounted coaxially to it, connected by common distribution disk installed between cylinder blocks of pump and motor, and gear drive, and output shaft differing from that, in order to increase the efficiency of the drive, the gear wheel with internal gearing is installed on the cylinder block of the pump, sun gear with external gearing - on the cylinder block of motor ra,
and the planetary gear is fixed on the output shaft, made in the form of a hollow cylinder, covering the cylinder block of the motor.
[2]
2. The actuator according to claim 1, wherein the distribution disc is made with a hollow shank for supplying the working fluid to the disc.
[3]
3. Drive on PP. 1 and 2, which is based on the fact that the distribution of the Telny disk is installed between the cylinder blocks of the motor and the pump with the possibility of axial and separate displacements.
Sources of information taken into account during the examination 1. Vashta TN, Volumetric pumps and hydraulic motors of hydraulic systems. M., Mashinostroenie, 197, p. kS7, fig. 192.
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同族专利:
公开号 | 公开日
GB1537730A|1979-01-04|
IL52647A|1980-06-30|
US4046029A|1977-09-06|
JPS5334056A|1978-03-30|
IL52647D0|1977-10-31|
DE2726804A1|1978-03-16|
FR2364379B1|1984-10-12|
FR2364379A1|1978-04-07|
CA1065166A|1979-10-30|
引用文献:
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
US05/722,233|US4046029A|1976-09-10|1976-09-10|Hydromechanical transmission|
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