China's belt conveyor equipment bearing industry small achievements

Belt conveyors are widely used in various industries. The line of the belt conveyor line can be selected according to the requirements of the transportation, and it is also an economical type of material transportation equipment that is indispensable for rhythmic flow operations. The bearing of the conveyor is Fixed parts in machinery. When the other parts are in relative motion with each other on the shaft, the mechanism for holding the center of the shaft and controlling the movement is called a conveyor bearing.
China is one of the first countries in the world to invent rolling bearing bearings. In ancient Chinese books, the structure of axle bearings has been documented for a long time. Judging from archaeological relics and materials, China's oldest bearings with modern rolling bearing structure prototypes appeared in Xuejiaya Village, Yongji County, Shanxi Province, from 221 to 207 BC (Qin Dynasty). Since the founding of New China, especially since the 1970s, under the strong push of reform and opening up, the conveyor bearing industry has entered a new period of high quality and rapid development. At the end of the 17th century, C. Vallo of the United Kingdom designed and manufactured conveyor ball bearings and installed them on a postal train and P. Worth of the United Kingdom obtained patents for ball bearings.
At the end of the eighteenth century, Germany's HR Hertz published a paper on the contact stress of conveyor ball bearings. Based on the achievements of Hertz, R. Stiebeck of Germany and A. Pamgren of Sweden have conducted extensive tests and contributed to the development of design theory and fatigue life calculation of conveyor rolling bearings. Subsequently, Russia's NP Petrov applied Newton's viscous law to calculate conveyor bearing friction. O. Reynolds of the United Kingdom conducted a mathematical analysis of Thor's findings and derived the Reynolds equation, which laid the foundation for the hydrodynamic lubrication theory. In the 50 years since the founding of the People's Republic of China, the bearing industry of belt conveyor equipment in China has achieved remarkable achievements.

Shutter Door Roll Forming Machine
The shutter door machine has many type of design. The austrilia type use wide raw material width, and easy to make the door. The small type of shutter door strip has nice appearance, and durable product. Besides, there are some other type of shutter door machine, like anti-wind shutter door machine and fire proof shutter door machine. The fire proof shutter door machine has the steel frame with EPS inside.
TECHNICAL SPECIFICATION
(1) 5 tons hydraulic un-coiler:
Hydraulic motor drives. One single-head structure. It has a pressing arm to prevent the coil loose.
Electric uncoiling, hydraulic motor tenses the coil inner.
The max. coil inner-diameter is 508mm.
The max. coil outter-diameter is 1200mm.
The max. width of coil is 1250mm.
The max. capacity is 5 tons.
(2) Roll-Forming M/C:
Welded steel structure base, chains transmit, motor drives it. The machine include the filming device .
The roller is designed by Germany software COPRA, and has FEA analysis, which can promise the product precision.
Material of Roller: 45#, with hard chrome coated, polishing,
Voltage:380V/50Hz
(3) Hydraulic pressing/ Cutting:
Stop to press, Stop to cut, Post cut .Cutting tool material: Cr12, pressing tool material:40Cr.
Tolerance of the cutting length ±2mm.
(4) Product Rack
It is 2 parts, 6 meters total.
Un-powered.
(5) Hydraulic System:
It offers power for the cutter.
(6) Electrical System:
It uses Siemens PLC system to control the whole line. It can measure and cut the length automatically. Frequency adjusts the speed and it has the self-control speed function.
Human-machine screen, touch screen control. The length can be set in touch screen freely and operation is simple.
The surround connecting wires adopts aviation socket or fast-speed plug.
(7) Safety barrier system
Keep the workers safe when working.

Shutter Door Roll Forming Machine

Shutter Door Roll Forming Machine,Anti-Wind Shutter Door Roll Forming Machine,Anti-Wind Shutter Door Forming Machine,Garage Door Roll Forming Machine

Botou Xianfa Roll Forming Machine Factory , http://www.rollformingmachinecn.com