SU1288241A1 - Machine for regenerating and compacting asphalt-concrete pavings - Google Patents

Abstract

The invention relates to the field of road engineering, namely to machines for the regeneration of asphalt concrete pavements. The purpose of the invention is to increase the productivity and evenness of the pavement. Machine for re-. generating and compacting asphalt concrete pavements of roads contains a self-propelled chassis 1, a receiving hopper with an inclined feeder 4, a horizontal feeder 5, a gas system 15 for heating the old coating, sealing the working member 14 of the floating type, hydraulic actuator 2 and 3, and the working member 14. includes a sectional milling cutter or passive ripper, auger and mixer. The mixer is rigidly connected to the sections of the blade 9. Each hydraulic actuator of the three sections of the screw cutter and hydraulic actuator 2 strokes are equipped with pressure sensors. The working body 14 is equipped with level sensors. The pressure sensors are connected to the hydraulic control valves for controlling the hydraulic cylinders for raising the working element 14. The pressure sensor in the hydraulic actuator 2 of the stroke is connected to the hydraulic distributors. 3 il. (L Yu 00 00 y and / V //) L / 3 t

Description

one

The invention relates to road machinery, namely, machines for the recovery of asphalt concrete pavements,

The purpose of the invention is to improve the performance and flatness of the coating.

Fig. 1 shows a machine for regenerating and compacting asphalt concrete pavements, side view; Fig 2 is a sample of a working tool; on fig.Z - diagram of the drive stroke, auger cutter and attachment of the cracking working body.

The machine consists of a wheeled 12882412

hydraulic cylinders control dividers 27; Ski 30 is used as an external base;

When the machine chassis is working, it is installed on the working lane. The hacking tool working screw screw cutter 6 (or the passive cultivator 7 and screw 6) together with the blade 9 are adjusted to the working mode.

 О Gas equipment 15 is started up, and the old coating is heated, the receiving hopper with an inclined feeder 4 is loaded with a fresh mixture, the feeder 4 is turned on, the undercarriage chassis 1 with the hydraulic horizontal feeder 5, the mixer 11, the water 2 turns and the drive 3 is working rear auger 13; The drives 2 of the equipment are activated, on which

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mounted hopper with an inclined feeder 4, horizontal feeder 5, cracking the working body in the form of auger cutter 6 (or passive ripper 7) with a screw 8 and a blade 9

mounted on beam 10, and mixer 1I, rigidly mounted on 25 of the same beam 10.

The screw cutter 6 is movably mounted relative to the beam 10 by means of hydraulic cylinders embedded in the rails 12. The back screw 13 and the working machine, a floating type gas generator 15, are also installed on the chassis 1, the gas system 15 for heating the old asphalt concrete pavement,

The hydraulic actuator 2 strokes are made according to the scheme pump 16 - motor 17, the drive 3 of the milling cutter 6 is made sectional also according to the scheme pump 18 - motor J9 and through chain drives 20,. The beam 10 of the attachment of the working body is installed using two hydraulic cylinders 21, enclosed in rails 22,

There are level sensors 23 with probes 24 mounted on the frame of the machine 25 through a screw mechanism 26 when using it as a base or on a beam 10 when using an external base (losh, wire, etc.).

The hydraulic cylinders 21 of the linkage are controlled by electrohydraulic distributors 27, 50 electrically connected with the corresponding level sensors 23, Pressure sensors 28 are electrically connected to the hydraulic system of the drive 2 stroke

stroke, 3 working equipment and auger screw in an automatic mode; this automatically lowers the working body, auger milling 6 (or passive loosening l 7), blade 9, mixer P until the probe 23 is set to sensor 23 in the neutral position ,

When the working stroke of the screw-milling machine 6 ryh lit the heated layer of asphalt concrete and delivers this :. the material along the blade 9 into the mixer 11, into which the horizontal concrete feeder 5 is simultaneously fed fresh asphalt mixture, B the mixer 11 mixes the old mixture with the new one, feeds the mixed material to the rear screw 13, distributes the mixture across the width of the coating and seals it with a sealing tool 14 floating

type i

When overloading one of the sections

The screw cutter 6 triggers the corresponding pressure sensor 29 and sends a signal to the electro-electrodistributor electromagnet 27, including the hydraulic cylinder 21 to lift, by lifting 45 one side of the cracking tool. When both sections of the auger milling cutter 6 are overloaded, the entire working body (ball 10) is broken open. The rise is carried out before the load is reduced to the norm, while another pressure sensor 29 triggers, sending a signal to the same electromagnet electrodistributor 27, de-energizing it, the hydraulic cylinder 21

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associated with electro-hydrodistributing - is stopped. When overloading by 27, In the hydraulic system of the drive 3 of the inlet 3 of the movement mechanism of the milling cutter machine 6, sensors 29 are installed and one of the pressure sensors 28 (in each of the sections) is electrified, which simultaneously sends signals that are electro-hydraulically distributed Electromagnets of the same name

82412

hydraulic cylinders control dividers 27; Ski 30 is used as an external base;

When the machine chassis is working, it is installed on the working lane. The hacking tool working screw screw cutter 6 (or the passive cultivator 7 and screw 6) together with the blade 9 are adjusted to the working mode.

 О Gas equipment 15 is started up, and the old coating is heated, the receiving hopper with an inclined feeder 4 is loaded with a fresh mixture, the feeder 4, the horizontal feeder 5, the mixer 11, the rear screw 13 are turned on, the drives 2 are turned on

 umbrella feeder 5, mixer 11, rear auger 13, drives 2 are activated

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ABOUT

eg

50

stroke, 3 working equipment and auger cutter in automatic mode, the lowering of the working body under breaking - screw cutter 6 (or passive ripper 7), blade 9, mixer P is automatically performed until the probe 24 of the sensor 23 is set to the neutral position,

When the working stroke of the screw cutter 6 loosens the heated layer of asphalt concrete and delivers this :. the material along the blade 9 into the mixer 11, into which the horizontal concrete feeder 5 is simultaneously fed fresh asphalt mixture, B the mixer 11 mixes the old mixture with the new one, feeds the mixed material to the rear screw 13, distributes the mixture across the width of the coating and seals it with a sealing tool 14 floating

type i

When overloading one of the sections

The screw cutter 6 triggers the corresponding pressure sensor 29 and sends a signal to the electro-electrodistributor electromagnet 27, including the hydraulic cylinder 21 to lift, by lifting 45 one side of the cracking tool. When both sections of the screw-milling cutter 6 are overloaded, the entire working body (bar 10) is cracked. The rise is carried out to reduce the load to normal, while another pressure sensor 29 triggers, sending a signal to the same electromagnet electrodistributor 27, de-energizing it, the hydraulic cylinder 21

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the hydrodistributors 27, causing the rise of the cracking working organ; on (beams 10) with the help of a hydraulic cylinder

 ditch 21..

Lifting is also carried out before the load is reduced to a norm, which is registered by another pressure sensor 28, de-energizing the same electromagnets (hydraulic cylinders 21 are stopped).

When lifting the cracking device (beam 10), the probes 24 of the level sensors 23 are shifted to a position that provides a signal to electromagnets electrohydraulic distributors 27, commanding the lowering of the hydraulic cylinders 21 of the beam 10, and this signal passes only in the absence of signals from pressure sensors 28 and 29 on the rise. The hacking working body is constantly striving, thanks to the level 23 sensors, to be set to a predetermined level. When spontaneous lowering of the organ of cracking, the same sensors 23 ensure its lifting to a predetermined position through the same mechanisms.

This eliminates the stops of the screw cutter 6 and the mechanism for moving the machine, which, in turn, eliminates the breakage of the cutter incisors (the cutter is stopped and the movement mechanism is turned on) and the presence of waves on the coating due to uneven compaction during changes in speed and stops the machine.

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five

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Claims (1)

Invention Formula A machine for regenerating and compacting asphalt concrete pavements, containing a self-propelled chassis, a hopper with an inclined feeder, a horizontal feeder, a gas heating system for an old coating, a floating-type sealing body and a hydraulic actuator for breaking the old coating and mixing the new material with the old suspended in a vertical plane by means of guides and hydraulic cylinders controlled by hydraulic distributors from the hydraulic system of the machine, including a sectional screw-fre y. or a passive ripper and a screw that is adjustable in height, and a mixer that is rigidly connected to the dump sections, in order to improve the performance and flatness of the coating, each hydraulic actuator of the screw cutter sections and the hydraulic actuator are equipped with pressure sensors, a working body for cracking the old coating — level sensors located on both sides of the machine, the pressure sensors in the hydraulic drive of the screw-milling sections tuned to the working range in terms of torque, and level sensors adjusted to the specified depths milling, associated with the control Hydrodistributor E lifting cylinders corresponds to the working body, and a pressure sensor in the hydraulic drive stroke, tuned to the operating range of the traction effort associated with hydro- Yedelev ate ra spun mi. /// jijlfT BfM; JO 1y //// /// /// /// /// -У77 / 18 . LL - TGZ M /// / 7 / /// STR Vu.d VNIIPI Order 7775/25 Circulation 488 Random polygons pr-tie, Uzhgorod, st. Project, 4 Eij M / 7 / /// STR Subscription