SU562744A1 - Test bench for elastic couplings - Google Patents

Description

torque circuit without movement in the shaft space.

The drawing shows the kinematic scheme of the stand and section A-A.

The kinematic scheme of the stand contains a loading device, which has a worm gear, screw pair 2, having a CI.NTY 3 and nuts - pressure cups 4, thrust BEARINGS 5, a shaft with slits 6, along which helical helical gears 7 are displaced; in engagement with cylindrical helical gears 8, the output rooms of which using torsionosis 9 and valuable gearboxes 10 are connected with the required coupling //.

The drive of the stand consists of a V-belt transmission / 2 and an electric motor 13.

The work of the stand is as follows.

The test coupling // is installed on the spindle x, the closure of the kinematic chain of the stand. The motor 13 is turned on, which transmits the rotation to the test muff through the belt and chain drives and torsions. At the same time, manually rotating the screw of the worm gear pair /. Sets the screws 3 with the correct thread direction and nuts - pressure cups 4, which through the thrust bearing 5 transfer the axial force to the gear 7, as a result of which the latter are moved along the shaft splines 6, to the relative rotation in opposite directions of the cylindrical helical gear 8 with the same direction of inclination of the teeth. As a result, there is an “aggravation of the closed kinematic chain. The helical gears 8 are made wider than the gears 7, which makes it possible for the gear teeth of the gears 7 to coaxially with the gears of the helical gear 8 but for the entire length of the tooth during axial movement of the gears relative to the helical gear.

wheels. This loading torque and tightens the test sleeve.

Such a constructive implementation of the loading device allows the torque to be loaded by the closed circuit on the move without stopping the drive and the bgz of spacer shafting in space, facilitating operation. The proposed construction does not require the use of shafts of a loading device and other shafts of movable sleeves 1 between them, thereby simplifying the design of the test bench and improving its operation.

Formula and 3 obreti N.

Test bench for elastic couplings containing a drive, an elastic link, a system of shafts, torsion rollers that transmit motion

the tested coupling, and the loading device, about tl and h and y with and that. in order to increase the efficiency of operation by providing the coupling on the go and improving performance, the loading device is made in the form of a pair of helical helical gears with equally directed teeth and gears mounted on the shaft splines, helical inaipbi, located between gears and the worm gear interacting with them, the wheel of which is rigidly connected to the screw of the screw pair, and the chain gears installed between the output shafts and the test coupling, with the output

The shafts are connected to chain drives by torsion rollers.

Sources of information taken into account in the examination:

1, Copyright certificate of the USSR N ° 180836, cl. C 01 M 13/00, 1965.

2. USSR author's certificate N ° 265509, cl. G 01 M 13 / DO, 1969.