SU564473A1 - Gear box - Google Patents

Description

The invention relates to transport engineering and can be used in transmissions of vehicles. Synchronizers of inertial type are known, containing a splined coupling, one of the coupling halves of which is mounted on the gearbox shaft, and the other is fixed on the gear wheel, a ring with holes interacting with a coupling half fixed on the gears; friction disks connected by pins having annular grooves interacting with the openings of the ring ij. The closest in terms of technical sushi is 10STi, and the effect that is achieved (the object, which is currently available is the gearbox, the so-called throttle shaft, the cogwheels that are free-standing on it and the synchronizer mounted on the shaft between the gears, including a sheath clutch made of two izaimodeys1-ing together with the shaft of the gearbox of concentric rings and B3d1ododejuk.) an elastic element attached to them, nodvizhnye along the shaft and interacting with gear wheels frictional, and the pins connecting them, e with splined coupling f2j. A disadvantage of the known devices is the low reliability of the device due to the increased wear of the synchronizer frictional surfaces due to uneven pressure on them. The purpose of the invention is to increase the reliability of the gearbox. In operation, this goal is achieved by the fact that a radial bore is made in the inner ring of the splined coupling, and on the inner surface of the outer ring of the splined coupling there are longitudinal grooves | on the shaft there are annular grooves, and the synchronizer is provided with a nut cracker placed in a radial hole, the input gate is into the grooves of the outer ring of the splicing sleeve and into the grooves of the gearbox shaft, FIG. 1 image of gearbox, but cross section; in fig. 2 - section A-A of FIG. 1, The gearbox contains shaft 1 and gears 2 and 3 freely mounted on it. On 1, between synchronous gears 2 and 3, there is a synchronizer, including M / inj. Niiu splined clutch, made of two in.; 1 single acting ONE with the other and with a shaft 1 concentric rings 4 and 5 and an elastic element interacting with them, which is a clamp 6, a spring 7 and an adjusting screw 8, under BIG / 1st along the shaft 1 and interacting with gear wheels 2 and 3 friction rings 9 and 10 and connecting These rings are stud 11; the pins pass through holes 12 into the outer m ishitsevoy coupling ring 5 and have recesses 13 prodachnye

A radial hole 14 is made on the inner ring 4 of the spline coupling. Longitudinal grooves 15 are made on the inner surface of the outer ring 5, and annular grooves 16 and 17 are placed on shaft 1. There is a rinse 18 in the hole 14, which is included in the grooves of the ring 5 and shaft 1. For best Mutual fixation of the rings 4 and 5 on the outer surface of the ring 4 is provided with an annular groove 19, into which the latch 6 enters. To hold the rings 9 and Yu in the neutral position, resilient element 20 installed in Kajetz 5 serves.

The box works as follows. To activate a given gear, the ring 5 is moved, moving it towards the gear 2 or 3. Together with the ring 5, the rings 9 and 1O move, held by the elastic element 20, after the contact of ring 9 or 10 with the gear wheel 2 or 3 respectively and

Ti.

compressing them under the action of the moment of friction and the difference in the angular velocities of the gears and the coupling ring 5 rotates relative to ring 4. Cracker 18, entering the groove 15 of the ring 5, enters the groove 16 or 17 of the shaft 1, the atom causes pinching of the ring 4 on the shaft 1, The interplay of the grooves 13 of the pins 11 with holes 12 in the ring 5 leads to a mutual axial displacement of the studs 11 and the ring 5,

Since the ring 9 or 10 and the pins 11 cannot move towards the wheel 2 or 3 of the gear to be switched on, the ring 5 is displaced relative to the ring 4 in the axial direction, overcoming the resistance of the latch 6,

The room is finished at the moment of cr-iij and 1 ,. Now the surfaces of the anti-fusions 11c uiijiiiiiA-p are the surface of the openings 12 of the ring 5. At this, on the surface of the wheels 2 and 3 and the rings 9 and Yu (respectively), the pressure determined by the shape of the transition surface on the pin 11 and the adjustment of the spring 7, After aligning the ugp speeds of the caster wheel 2 or 3 and shaft 1, the blocking action of the nut 18 stops, the ring 4 under the action of the lock 6 moves towards the ring 5 and connects the wheels 2 or 3 to the shaft 1, including

the most predetermined gear.

invention formula

A gearbox containing a shaft, free-wheeling gears on it and a synchronizer mounted on the shaft between the gear wheels, including a large-width clutch made of two

acting one with the other and with the shaft of the gearbox of concentric rings and the elastic element interacting with them, moving along. shaft and interacting with gears friction

rings and their connecting pins interacting with the spline coupling, characterized in that, in order to increase its reliability in operation, the radial bore is protruded in the inner ring of the cage coupling, the longitudinal grooves on the inner surface of the spline coupling annular grooves, and the synchronizer is provided with a nut cracker placed in a radial hole, the input is slm

into the grooves of the outer ring of the spline coupling and into the grooves of the gearbox shaft.

Sources of information taken into account in the examination:

1. A, A. Kurov and B, A. Kurov Car, Ma 1giz., M ,,. 1951, p, 189, FIG. 178.

2. U.S. Patent Nos. 3,36768,74– 339, 1968 4 5

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564473

A -A

FIG. 2