SU137417A1 - Portable valve lapping tool - Google Patents

Description

Portable fixtures FOR lapping k.aapanov, in which the electric motor, through a gear transmission with a crank, communicates a swinging movement to a lever with a gear sector to transmit a reciprocating motion to a cylinder using a cam clutch to communicate the latest axial reciprocating motion, is known

The proposed portable device for lapping the valves, in contrast to the known devices used for aia, provides ideal spindle advance in one direction during its reciprocating movement.

This distinctive feature makes it possible to make a portable device for grinding valves more compact and convenient to operate compared with the known devices.

This is achieved by the fact that the finger of the crank of the iris is made up of two stages, and the lever is provided with a slot on the pole, each side wall of which is in contact with a separate step of the crank pin.

D. THYA is secured by the case, geniuses at the place of work can be used electromagnet.

The drawing shows the pattern of an insulated circuit of the insulated device.

The fixture is driven by an electric motor 1, which, through a gear train 2, 3 with a pair of crank 4, rotates the lever 5 with gear sector 6.

The toothed sector 6, in turn, communicates a reciprocating rotational movement by a shnipdel 7 connected to gear 8, the teeth of which are in engagement with the teeth of sector 6 of the lever 5 3 137417

The axial reciprocating movement of the spindle 7, which requires machining valve 9, is carried out with the help of a cuff coupling 10.

The cam sleeve 10 is driven by the swinging lever 5 by means of fingers, 12, the free ends of which are passed through the corresponding hole 5 13, 14) 5.

Four-pin finger; 1nen two-step: a larger diamegra in the lower and a smaller diameter in the upper part.

The lever 5 at the end opposite to the gear sector 5 has a groove, each side wall of which, in operation, is a co-ax with a separate step of the finger of crank 4, due to which the deflection of the lever 5 in one direction is more difficult than in the other. This circumstance ensures the operation of the spindle 7 in advance in one direction, and in its reciprocating rotational motion.

Fixing the device at the work site is carried out using an electromagnet.

G1 p e d m et and z o b e te n u

1. A portable valve lapping device in which an electric motor drives a crank motion through a gear train with a crank to give a reciprocating movement to a section using a cam clutch to communicate to the latter axial reciprocating motion, , in order to ensure advancement of the spider 1 in one direction, with its reciprocating rotational movement, the finger of the curved wheel is made in two steps, and the lever is equipped with a end cutter, azhda side wall which is in contact with a separate stunenyu naltsa krivoschipa.

2. Use to fix the device at the place of operation of the electromagnet.