SU296847A1 - DEVICE FOR MANAGING THE ROAD OF ROAD CUTS - Google Patents

Description

one

The invention relates to a technique for creating road bases for covering them with asphalt and concrete, and is intended to control the rotor of a road mill.

The known device for controlling the rotor of the road mill, which includes a pump, a follower valve with a rod, a support and pipelines, does not ensure the accuracy of maintaining a given thickness of the treated soil layer during the operation of the road mill.

In the described device for controlling the rotor of the road mill in order to reduce the deviation from the predetermined depth of soil treatment, the rod of the follower spool is connected by means of a lever fixed on the rotor case to the device support.

In addition, the lever can be made integral, one of the parts of which is mounted for movement relative to the other.

FIG. 1 shows the proposed device, a general view; FIG. 2 - the same hydraulic circuit.

The rotor 1 of the road mill is pivotally connected via the crank lever 2, terminating in the rotor support 5, and the transmission housing 4 to the tons 5.

ground surface. On the side wall of the floating body 6 there is a follow- ing gold piece 8 with a rod 9 in contact with the main part 10 of the composite lever, which is hinged at point A to the floating body. The end portion of the // composite arm may move along the vertical upright of the main body 10 of the composite arm and be fixed on it. The end portion 11 of the composite arm contacts the support 3 of the rotor. The main line of the hydraulic system consists of spool 12, pipelines 13 and 14, and a power cylinder 15 with a lock 16. The next valve 8 is connected to lock 16 by pipelines 17

and 18. The hydraulic system also includes spool 19, flow divider 20, pipelines 21-24, hydraulic pump 25 and tank 26.

For quickly raising or lowering the rotor of the road milling machine, use the spool

12, while the spool 19 is in the Neutral position, and the next spool 8 does not affect the operation of the power cylinder 15. The operation of the device is as follows.

When the rotor 1 of the road milling machine is in an inoperative position, i.e. lifted above the ground, the end part 11 of the composite lever is installed according to the pre-calibrated

composite arm in a position corresponding to a given depth of soil treatment, and fix it, for example, locking bolts. The end part 11 of the composite lever is not in contact with the support 3 of the rotor /. Spool 12 is set to position Neutral, and spool 19 is in position to allow movement of the working fluid through pipeline 21 to flow divider 20, and then its required amount through pipeline 22 to the next spool 8. The remaining liquid through pipeline 23 through spool 19 is drained into the tank 26. The spring loaded pin 9 acts only on the weight of the parts 10 and 11 of the composite lever, and it will let the liquid through the pipe 17 into the right-hand side of the lock 16 and the throat cavity of the power cylinder 15. The rotor starts to sink, crashes into the ground, and "floating orlus skiing 7 will be planned on the soil surface. The rotor is lowered until the support 3 comes into contact with the end part 11 of the composite lever, and the main part 10 of the composite lever presses the spring-loaded pin 9 of the next spool 8. The next slide 8 takes the position Neutral, the flow of liquid into the the power cylinder 15 and the lowering of the rotor.

When the road mill is in operation, when, for example, the rear part of the drive motor 5 is elevated, the support 3 of the rotor 1 moves upwards from the end part 11 of the composite lever, the return of the rotor 1 to the specified position will occur as described above.

If the rear part of the propulsion unit is in the cavity, the rotor support 3 / through the end part // of the composite lever by the main part 10 of the composite lever lowers the spring-loaded pin 9 to the movement of the working fluid through conduit 18 through the left side of the lock 16 to the force cavity the cylinder 16, and from the piston through the right side of the lock 16, the pipeline 17, the next slide valve 8, the pipeline 24 and the valve 19 - drain the tank.

The lift of the rotor 1 begins, which continues until the spring-loaded pin 9 is in the position "Neutral,

thus, it will overlap both cavities of the power cylinder 15. The lifting of the rotor 1 of the road mill will stop, and the depth of the treated soil layer will correspond to the given one.

Subject invention

1. Device to control the rotor of the road mill, including the pump, the following

spool with a stem, a support, pipelines, characterized in that, in order to reduce deviations from a given depth of soil treatment, the stem of the follow spool is connected by means of a rotor mounted on the body

lever with support device.

2. A software device according to claim 1, characterized in that the lever is made of composite, one of whose parts is mounted for movement relative to the other.

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