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Inside machines work process, from the CAM device driver turn, piston type fuel injection pump to system for ruthless oil. Hydraulic system in accordance with the maximum allowed by crushing force crusher hydraulic regulator conditioning nut set, when oil pressure rises, oil pressure adjusting device of plunger spring compression right shift, driving the piston type fuel injection pump piston counter-clockwise, shorten the piston effective vacation to slow up the quantity of oil, limit system injection pressure rise; Conversely, hydraulic system low, boost the volume of oil, steer clear of the hydraulic system of down, hydraulic system inside the initial set keep hydraulic pressure. (1) an average work during normal working, crusher thrust board in focus on the role cylinder pressure below hydraulic cylinder thrust, action in limit position about the board, usually do not produce mobile, thrust broken material; normal crusher (2) overload protection when jaw crusher cavity broken in the crushing object, the broken force increases, this time around jaw crusher thrust board within the cylinder role work pressure is more than the hydraulic cylinder offers the thrust, for ruthless oil cylinder cavity hydraulic transient rise, throttle valve valve movement helps make the movement, the machine (hydraulic cylinder) oil leakage, limit thrust board thrust (this is the biggest force) and largest broken protect the equipment; Frequent occasions in overload, jaw crusher adopts hydraulic overload protection has obvious superiority, the power can be as follows: (1) safe, reliable, sensitive reaction reliability for protection device is fairly important. The hydraulic protection system in order that the device operation, even when could be the system failure as well as the action can't action, accumulator with buffer role, could make the thrust board in overload, and with the right shift when pressure relay realize power, alarm; (2) might be adjusted in line with the different occasions overload load by adjusting device conditioning nut adjust overload load; (3) after overload protection, automatic may be reliable out fault, faster reset to revive normal production, don't need to replace parts, both economic and time; (4) facilitate computer operation and control, all to easy to realize and fracture process automation. (3) the broken out fault things in the crushing cavity, due to work cylinder can offer the utmost limit, the pistons thrust right shift retract, correspondingly crusher row ore enlarges, as well as the mouth with the jaw broken motor gear, the broken gradually downward motion and also the final thing in the ore discharge, automatic eliminate broken mouth cavity inside the broken objects. If broken in to the cavity in the output of the 'broken things products' is unqualified, can remove the auxiliary devices; (4) automatic recovery every time a broken things out, the piston in automatic after covering position, as the separated, action valve in effect about the instantaneous cavity pressure not make valve core recovery limit position on to never discharge system the oil; Concurrently, piston type fuel injection pump in oil pressure beneath the action of adjusting device towards the largest quantity of oil pump to function oil, before work system cylinder piston moves left to limit position. To date, crusher resume normal work condition. Jaw crusher hydraulic overload protection device hydraulic principle used through the hydraulic adjusting device adjust piston kind of fuel oil pump trip, based on effective hydraulic system trace quantity of oil leakage automatic regulation size oil, work cylinder injection with bolts restrictions limit elongation, overcome the job of hydraulic system dynamic jaw of hydraulic pulse, facilitate row ore mouth regulation. jaw crusher: http://www.crusher-machine.com/1.html ball mill: http://www.hxjq-crusher.com/20.html Cement mill: http://www.hxjq-crusher.com/61.html
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