SU379422A1 - Self-propelled chiller machine - Google Patents

Description

one

FIELD: transport engineering.

A creeper of a self-propelled machine, such as a tractor, contains primary, intermediate and secondary shafts with mounted gears and a coupling for alternately coupling the secondary shaft to the primary shaft and the intermediate shaft of the creeper.

The purpose of the invention is to reduce the force for shutting down the creeper.

To do this, on the intermediate shaft of the proposed creeper the sleeve is fixed with a collar made in the form of a pair of radial cams arranged symmetrically with respect to the axis of the sleeve, and the gear of the last stage creeper is freely mounted on the sleeve, which is made with two end lugs interacting with the sleeve cams.

FIG. 1 shows the kinematic scheme of the described creeper reducer; in fig. 2 - gear with sleeve; in fig. 3 - gear, side view.

The creeper contains a primary shaft / on which the gear 2 gear 3 is located. The gear 2 to 4 is mounted on the intermediate shaft 5. The gear 4 communicates with the gear 6, located on the additional shaft 7.

On the shaft 5 is fixed sleeve 8 with the collar. It consists of radial cams P located symmetrically to the axis of the hub 8. On the hub 8, a gear W is freely mounted, on which the end protrusions of the P. H. Gear 10 is connected with a coupling 12 serving for alternately coupling the output shaft to the primary shaft and the intermediate shaft creeper. Gears 13 and 14 are located on the additional shaft 7 and are associated with gear 15 mounted on the additional shaft 16.

The creeper works as follows.

When the creeper is switched on, power flow is transmitted from the gearbox to the primary shaft / through pairs of gears 3, 2, 13, 14 and 15, additional shaft 16, a pair of gears 4 and 6, intermediate shaft 5 and sleeve 8. Lastly, rotate as one the whole with the shaft 5, leads its cams 9 gear 10 for the projections and.

To turn off the creeper, turn off the clutch, stop the car and turn off the reverse for a few seconds. At the same time, the creeper shafts rotate in the opposite direction and the cams 9 of the sleeve 8 move away from the protrusions // of the gear 10. As a result, the residual moment is removed for a few seconds, i.e.

at a time until the meeting of opposite surfaces of the cams and protrusions. This period of time is ample for moving the homing lever to the off position.

If the machine is reversing with a creeper, then turn it off for a few seconds to turn it on.

Subject invention

The creeper of a self-propelled machine, such as a tractor, contains the primary one.

intermediate and secondary shafts with gears mounted on them and a coupling for alternately coupling the secondary shaft to the primary shaft and the intermediate shaft of the crawler, characterized in that, in order to reduce the force to turn off the creeper, a sleeve with a collar is attached to its intermediate shaft, made as a pair of radial cams arranged symmetrically with respect to the axis of the hub, and on the hub the gear of the last stage of the creeper, which is made with two end lugs, is freely mounted yuschimi cams sleeve.

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W

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FIG. 2

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