The simple introduction of principle of switch of transfer case of vehicle of 1 concrete pump
Undertake transforming on batholith of carring capacity car and concrete pump vehicle is become, it is how to contain on chassis motion and dynamical gearing, pump sends and device of dasher, cloth and other a few auxiliary unit. The motivation of concrete pump car conveys the motivation of engine through dynamical transfer case hydraulic pump group or rear, hydraulic pump drives a piston to drive concrete pump job. Use the cloth lever on pump car and duct next, carry concrete certain height and distance. The engine of concrete pump car besides travel of drive pump car, also use drive pump to send orgnaization, agitate orgnaization and cloth orgnaization to wait for equipment.
Concrete pump car the motivation of each equipment originates car engine. When concrete pump lathe work is made, the motivation of car engine sends transfer case through gear-box, repass delivers each hydraulic pump or chassis rear after transfer case switch. Give out switch to send to pump when the driver when the instruction, pneumatic electromagnetism a powerful person controls the air cylinder on transfer case to drive batch of fork, dial fork to drive detached gear switch to send the position to pump again, cut off the motivation that leads to rear at the same time, make the car is in the condition that be stationed in a car. Conversely, switch arrives travel position.
2 breakdown phenomenon and breakdown are analysed
My company has a Pucimaisite mechanical (Shanghai) the BSF36.09 pump car that the company produces, it is after end of building site construction, when preparing stop work for the day, the hydraulic pressure system that produced complete car suddenly does not have the breakdown of pressure entirely, the output power that feels transfer case is be expert at sail locally, when the driver gives out switch to send the position the statement to pump, see termination of the lever that dial fork can retractile, but the detached gear inside transfer case does not leave travel position namely, accordingly this gear also won't switch sends the position to pump. Although had called in brachial lever, 3 foot already mentioned, but foot has not called in thoroughly. The most headachy problem is, complete bearing is in the foot before still having on the ground, the car weight that there is 1/4 left and right sides above is measured, the gravity that is close to 10t is pressed on this foot. If do not solve this problem, although pump car can travel, also cannot open a firm from building site.
The processing of problem of foot of 3 pump car
Analyse principle of system of hydraulic pressure of pump car foot, the crock of every foot hydraulic pressure that discovers pump car brings protection of a powerful person of two-way apply the brake, although tear open next vitta that offer oil, the hydraulic pressure oil in also cannot not having oil cylinder lever antrum is given off, and a powerful person of two-way apply the brake is received oily mouth is entered to go up without lever antrum in hydraulic pressure crock, cannot ravel below the circumstance that does not tear open a powerful person of next two-way apply the brake, close not to answer foot. Think way on a powerful person of two-way apply the brake only, if the graph is shown 1 times,the principle of system of foot hydraulic pressure of pump car pursues.
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