How to use concrete placing boom

Concrete placing boom can not be arbitrarily long, shall be connected to a long time, in the greater than promised to work in a fixed position must be equipped with a fixed support.


When the discharge port is changed, the outlet is covered with a sack, and the concrete is prevented from falling on the ground. 
Ready concrete pouring of the signal lines and intercom, double control, columns, walls of concrete pouring in, to ensure that the lamp pump stop, stop stopped, the front concrete must advance 4S halted, lights, communication must be established a special, night construction control of concrete with flashlight required, see concrete pouring height. 
Test with rope control of concrete material outlet, and the middle arm bending demolition, run for a week in the large scope. 
Concrete pump in to take over, must check full pump tube are cleaned, the interface required by rubber gasket. Connect the concrete pump pipe shall check the bolt. 
With the cable wind rope concrete placing boom rod fixed legs, cable wind rope not too tight, the interval should be set aside concrete placing boom rod deformation. 
When the material rod is arranged on the frame, the supporting legs are compacted, and the utility model can not be used when the ground is installed on the floor. 
Placed placing boom and counterweight,concrete placing boom of the intermediate lever must arrange 200~300mm, supporting feet beneath sleeper or wood, cloth inspection machine shaft is vertical. 
The frame body which is placed in the position of the concrete placing boom rod is put in the frame, and the checking and acceptance are carried out to calculate the bearing capacity of the bearing part, the reinforcement of the double fastener and the stable condition of the foundation. 
Check whether all the bolts of concrete placing boom tightly, the rotating shaft is normal. 
The concrete placing boom is straight, whether in the case of straight do not weight. (general concrete placing boom rod into in don't weight can stand straight, due to the lifting cloth rod, common crane can not be cloth bar and counterweight hanging together, need points twice to hoisting and installation). 
The hydraulic system of distributing machine is introduced in the paper: 
(1) climbing inside the top lift hydraulic system and the main system share a pumping station, adopts imported high quality quick connector to connect between the two systems, independent of each other, optional conversion conditions (concrete placing boom / lifting), safe and reliable and effectively solve in the process of mode switching system leakage problem, and avoid the pollution to the environment. 
(2) the machine adopts open hydraulic system, the system is simple and reliable, easy to fault diagnosis and elimination. 
(3) arm for balance valve for quadratic overflow with Italian Oilcontrol imported products, can effectively ensure the boom running smoothly, avoid cylinder under external influence and pressure suddenly increased damage to boom, and enhance the safety in using. 
(4) rotary hydraulic drive, low speed and high torque hydraulic motor drive planetary gear reducer, can be used for 480 degree rotation, swing action is stable and accurate. For fabrics machine often in work high above the ground, rotary brake selects normally open, can guarantee machine concrete placing boom in the non operating state, wind free slip, not because of the wind load is too large and the destruction of the transmission mechanism and structure.