Konwledge Center >> The jaw crushers overload protection of hydraulic system
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The jaw crushers overload protection of hydraulic system
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Jaw crusher is now widely used crushing equipment, in all trades and professions, used in crushing various hardness, different kinds of materials, and therefore jaw crusher inevitably will appear overload phenomenon during the process of working, This requires the device itself should have good self protection system, in order to make equipment can safe operation, failure rate remained low level.
1. jaw crusher common overload protection method and its development
1) Cubits board broken method
This kind of traditional overload protection measures, simple structure and easy to manufacture.
(2) The flywheel torque-limiting protection
(3) Hydraulic protection
Developed safe and reliable hydraulic protection device instead of traditional negative protection means, maximize machine safely and stably in continuous non-submerged operation is necessary.2. hydraulic overload protection device's working principle
Jaw crusher hydraulic overload protection agency mainly by working cylinder, accumulator, piston type fuel injection pump, CAM device, hydraulic adjusting device, action valve, filter, oil tank etc.
3. Overload protection work process
Jaw crusher hydraulic overload protection device hydraulic principle: adopting hydraulic adjusting device adjust piston type fuel oil pump according to schedule, effective hydraulic system trace oil leakage quantity size automatically adjust injection fuel, work urns adopt bolt restrictions limit elongation position, overcoming the move for hydraulic system of the jaws hydraulic pulse, facilitate row ore mouth adjustment.
They hydraulic regulator conditioning nut setting, when oil pressure rises, hydraulic adjusting device in the plunger spring compression right shift, driving the piston type fuel injection pump plunger counter-clockwise, shorten the plunger effective trip to reduce note oil, restricted system hydraulic elevator. Conversely, the system hydraulic low, increase the amount of oil, prevent the system from injection of hydraulic down, hydraulic system in the initial set keep hydraulic pressure.
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