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Press manufacturers to lead the machinery industry |
Public date:2016-5-19 Hits：4189 |
Press normally by electric motors through the friction disc drives the flywheel rim and the flywheel to rotate, it has the advantages of compact structure, transmission links. So, what is the mechanical principle of the press?
Press without a fixed point and for large forging parts, can be repeatedly blow forming, can hit singles, and inch. The striking force is related to the deformation of the work piece, when the deformation is large, the striking force is small, and the deformation hour is large. But its low speed sliding block, through the block, so the work is stable, which is the mechanical principle of the press.
The lower part of the press is equipped with forging head out device. In summary, the press can be used for die forging, punching, drawing and other processes.
In some production and processing process, the form of the press is very common, however, the press in the production and operation process, due to normal wear, use or improper maintenance, it is inevitable that there will be a variety of faults. So, after the failure of the press should be how to do it?
A, bearing temperature rise too high: if the normal work of the press and even to run an empty crankshaft bearing temperature rise within a short period of time change is very big, need to consider the bearing clearance is too small, shaft Vanessa whether to enter the impurities or foreign bodies, lubrication is bad, whether in the long-term overload overload.
Second, press even red: press even is a very serious fault, it is first necessary to exclude the press control program has errors or not, check cam switch signal whether the failure, clutch friction plate whether loss caused by the clutch off, brake action failures don't brake, clutch and brake the intake and exhaust is smooth.
Three, the fuselage vibration: the body vibration is too large will bring a lot of problems, resulting in poor working environment, the service life of the machine is reduced, the precision of the forging and so on. That you need to check whether the balance of flywheel is not good to beat too large, crankshaft bearing wear serious, anchor screw is loose, tightening bolt preload enough.
If the machine fails, according to the content of further analysis, and ultimately find the root causes of the problem. Through the timely and accurate judgment of the occurrence of the fault, it can ensure the use performance of the press, and then improve the reliability, life and efficiency of equipment operation.
Hydraulic press, also known as hydraulic forming press, is a variety of metal and nonmetal materials forming processing equipment. It mainly has the frame, the hydraulic system, the cooling system, the pressure oil cylinder, the upper die and the lower die and so on. The machine frame is characterized in that the lower end of the machine frame is provided with a movable working table and a moving oil cylinder which is connected with the mobile station.
The hydraulic press installation in the house clean, dry, temperature uniformity, around no vibration, no corrosive gas effect and location shall be the location should be appropriate, convenient operation and maintenance, the installation of foundation should be solid and reliable.
When using the hydraulic pressure machine, the hydraulic oil need to be inspected and replaced regularly, otherwise the whole process of the hydraulic press has a great impact on the processing performance. |
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