The basic structure of the fixed rack floating gear transmission is to fix the rack on the trolley, and the gear is suspended on the rack, thereby eliminating some easily damaged components such as the guide frame. The structure and working principle of the newly designed floating gear transmission The fixed rack floating gear transmission structure is a new type of transmission mechanism designed and designed by us. It was successfully applied to the steel pipe sawing process of Tianjin Daqiu Zhuang Steel Pipe Production Co., Ltd. for the first time in early 1994. And since the end of 1995, it has been dozens in China. 45-165mm electro-hydraulic CNC flying saw with different specifications. The results show that the transmission mechanism is simple in structure, reliable in operation, stable in operation, convenient in installation and maintenance, and can be well adapted to the working requirements of the flying saw machine. The gear impact angular acceleration can be used to semi-quantitatively describe the magnitude of the disc drive noise.
The rack is fixed on the trolley by bolts and positioning blocks, and can drive the trolley to run together. The gear is installed in the floating gear seat, and the positioning of the gear shaft and the running direction of the rack is performed by the positioning seat, but the upper and lower sides are not limited, and the eccentric positioning shaft suspends it on the rack seat, and the eccentric positioning shaft can be adjusted. The gear and the rack get a proper meshing clearance. During operation, the rack does not move relative to other components. Only the suspension roller of the suspension gear carrier performs continuous pure rolling on it, so the movement is smooth and the transmission is reliable. When the position of the cart and the bed changes due to processing, installation, or wear, the gap between the gear and the rack does not change. When the gear (rack) wears the flank to change the gap, the ideal meshing clearance can still be obtained by adjusting the eccentric positioning shaft.
Check Valve is usually used for stopping back flow of medium.
The maximum permissible leakage of the check valve with non-metal elastic seals is zero, and that of the check valve with meal seals is 0.1xDNmm3/s. Therefore, QC passed valves with metal seals possibly have slight leakage. Hence, in the applications where check valves must not have any leakage, non-return valves with soft seals should be used.
Nominal pressure of Brass Check Valve is 1.6MPa and medium temperature for metal seal is -20℃~150℃, and medium temperature for non-metal seal is -20℃~100℃. When the non-return valve is used for saturated steam, the pressure of the saturated steam should be≤0.6MPa.
Check Valve
Check Valve,Brass Check Valve,Spring Check Valve,Water Check Valve
Ningbo Jiekelong Precision Manufacturing Co., Ltd. , http://www.jklvalve.com