Teaching equipment : Hydraulic machine of maintenance - Knife crusher

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Hydraulic machine of maintenance - Knife crusher

DESCRIPTION

The hydraulic knife crusher is an hydraulic machine making it possible to carry out the maintenance of fast and slow rotating system hydraulic and to manage the associated safety measures

Support for activities of adjustments, diagnosis and replacement of failing hydraulic components, improvement of the system

Machine being able to be used only or joined with the mixer/mixing MMH 102

The machine is delivered supplements, instrumented, with technical file and manual teaching.

Teaching equipment : Hydraulic machine of maintenance - Knife crusher - MMH 101

Material of industrial type.

Teaching concerned: Maintenance of the industrial systems and complementary mentions in hydraulics

Technical description and activities of maintenance on crusher:

Structure
- Aluminium Frame anodized on wheels with brake section 90 * 45mm
- Structure of the system of crushing out of sheet steels/assemblies screwed
- Caracterisation supplements with protected openings coupled to security chain of the machine
- Dust-protecting Aspiration

Mechanical description of the feeding system of waste:
- 1 belt conveyer motorized lg 1000mm approximately
- rotor with teeth motorized to force the power supply of the crusher
- transmission of power on the conveyer and the rotors with multiple teeth by pinion and roller chain
- 1 hydraulic engine approximately 50 Cm3 for drive of the conveyer and the rotors

Mechanical description of the system of crushing:
- 1 hydraulic engine with drain of 7cm3
- 1 steel rotor of diameter 200mm of 260mm of width equipped with 4 knives and turning with 3000tr/min
- Guidance in rotation by ball bearings
- Swing drive by hoop of tightening making office of torque limiter/detection of slip coupled with the security chain.
- Chip disposal in a specific chute towards vat or mixer MMH 102.
- 1 Hydraulic engine

Sensors:
- Pressure gauge controller on crushing engine
- Inductive Sensors of rotation coupled to module allowing to manage null speed, the slip of the torque limiter as well as the speed of crushing

Supervision (option):
- visualization of the state of the pre-actuators
- representation by diagrammatic hydraulics and emulation of posting of the magelis
- complete piloting/started/put moving of the machine
- reading of instantaneous measurements number of revolutions

Electric structure:
- general disconnecting switch of power supply modulates standard safety PREVENTA coupled with the sensors of safety and emergency stopping of the machine.
- circuit breaker and differentials for protection
- piloting of the machine since the button manufacture located on the box
- posting number of revolutions on desk
- piloting, parameter setting and assistance with the diagnosis by standard IHM magelis
- Schneider automat with analogical chart
- piloting of control by instruction automat/velocity measurement retransmitted with the chart of regulation
- possibility of substituting this direct order by order since supervision/connection on standard connector sub D for locking on box (RS485)

Description of the hydraulic components in initial version:
- 1 power station with engine 5.5 kw
- tank of 75L with level gauge and thermometer with contact
- coupled pumps (3 and 20L/min)
- 2 solenoid valve block assemblies 4/2
- 1 solenoid valve block assembly 4/3 (for piloting 2 feel feeding system)
- 1 volumetric governor 3 ways with numerical chart of regulation
- 1 block speed for emergency braking of the rotor
- 1 filter return with clogging indicator
- 3 limitings device of pressure (100-250 bars)
- establishment cetop 3 and components cartridge

Activities for crusher
- Adjustment of the limitings device of pressure for control of the braking and acceleration times of the rotor Adjustment of volumetric governor for control of the downtimes of the machine in emergency stop
- Integration of a device of regulation of flow proportional controlled on the speed of crushing
- Integration of a block speed to allow the emergency braking of the rotor
- Replacement of distributer 4/2 by distributer 4/3 to allow the inversion of the direction of walk of the feeding system
- Analysis of operation by measurement speed and tensions of instruction and controlled (measurement on banana plugs standard doubles puit)

PEDAGOGIC APPLICATIONS

- Adjustment of the hydraulic components for obtaining the nominal conditions of walk of the machine

- Implementation of measures of the characteristics flow and pressure for activities of adjustment and diagnosis

- Modification of the hydraulic installation for improvement of the operation of the machine

- Autonomous operation or on line (with MMH 102 and 103)

UTILITIES
Electricity: 400 VAC will tetra/20A mini 50 Hz

VOLUME Of INSTALLATION
WRAPS NET (Lxlxh in mm): 2200x2000x1900/400kg

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Hydraulic machine of maintenance - Knife crusher

Didatec Technologie - ZA du Parc 42490 Fraisses - France - Tel : 33 (0)4 77 10 10 10 - Fax : 33 (0)4 77 61 56 49
E-Mail : didatec.technologie@wanadoo.fr