SU558123A1 - Hydromechanical transmission - Google Patents

Description

I

The invention relates to the field of power engineering, engaged in the production of mechanical gear.

A hydromechanical transmission comprising a hydrotransformer consisting of a pumping wheel connected kinematically to an engine, a turbine wheel connected to the gearbox input shaft, a reactor mounted on the housing, a mechanical transmission (1) is known.

A disadvantage of the known transmission is the impossibility of blocking the torque converter with simultaneous selection of air conditioning, which complicates the design of the hydromechanical transmission.

Also known is a hydromechanical transmission comprising a lockable transformer, including pumping and turbine wheels, associated respectively with coaxial drive and driven shafts, a reactor, a mechanical transmission with a power take-off shaft (2).

The disadvantages of this device are the complexity of the design for locking the torque converter, as well as the impossibility of simultaneously using an independent power take-off mode.

To simplify the lock-up of the torque converter and provide an independent power take-off mode with the locked and synchronous power take-off mode when the torque converter is unlocked, the driving and driven shafts are hollow, the power take-off shaft is installed inside these shafts with the possibility of axial displacement1, and on it)) 1101 the surfaces and on the internal surfaces of the driving and driven shafts are made splines for their mutual interaction.

FIG. 1 shows the described transmission with an unlocked torque converter; in fig. 2 - the same, with unlocked hydro-transformer and independent power take-off mode; in fig. 3 is the same as a blocked torque converter and an independent power take-off mode; in FIG. 4 - the same with unlocked torque converter and synchronous power take-off.

The hydromechanical transmission contains a lockable torque converter, including a pump wheel 1, kinematically connected to the engine via a drive shaft 2, which has slots 3, a turbine wheel 4 connected by a driven shaft 5, having clamps 6, to the gearbox input shaft (not shown) . The reactor 7 is fixed on the body .8. Leading 2 and driven 5 shafts are hollow and power take-off shaft 9 is mounted

inside these shafts and also has slots 10 and I, separated by a groove for engaging with slots 3 and 6.

The proposed hydromechanical transmission works as follows.

When the power shaft 9 is positioned as shown in FIG. 2, its splines 10 are engaged with the slots 3 of the drive shaft 2, thereby providing an independent power take-off mode at the unlocked torque converter.

Upon further movement of the shaft 9, as shown in FIG. 3, its slits 10 remain in the markup with the clips 3 of the drive shaft 2 n, in addition, the second slits 11 of the shaft 9 are also in enceleration with the clips 6 of the driven shaft 5. The torque converter is blocked and at the same time an independent power take-off mode.

FIG. 4, the position of the power take-off shaft 9 is such that when only one of its slots 10 are in engagement with the slots 6 of the driven shaft 5. With this position of the shaft 9, the transformer is unlocked, and a simultaneous power take-off is simultaneously provided.

Form m} l and invented and

A hydromechanical transmission containing a lockable torque converter, including pumping and turbine wheels, associated respectively with coaxial drive and driven shafts, a reactor, a mechanical transmission with a drive shaft, characterized in that

power take-off during the operation of the torque converter, the drive and driven shafts are made with holes; the power shaft selection shaft is installed inside the said shafts with the possibility of axial shifting, and on its outer surface and on the inner surfaces of the drive shaft and the driven shafts are made for their interaction.

Data of information used during the examination of exertize:

1.Patent of France AB 2150054, cl. In 60K 17/00, 1973.

2. Authors with the USSR Hch 158496, M. Kl.2 V 60K 17/10, 1963.

Fig

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