Release time：2023-11-19 14:06:28 Hits： Current position: Home > News
This article mainly introduces:
Kazakhstan hydraulic cylinder,roller press hydraulic cylinder manufacturer,roller press hydraulic cylinder
(Kazakhstan roller press hydraulic cylinder,produced by Hebei Hengyu company）
roller press hydraulic cylinder are widely used in Kazakhstan，because of simple structure and reliable operation，excellent temperature resistance，no transmission clearance.So our company has designed roller press hydraulic cylinder for customers from Kazakhstan.
If the roller press hydraulic cylinder piston rod is found to be worn, it can be brushed and plated first, then ground, and finally adjust the mating accuracy of the piston rod and the guide sleeve. At this time, the guide sleeve can be properly redrilled or the guide sleeve can be re-turned. When making the above repairs, remember to replace various rubber seals in time.
When the roller press hydraulic cylinder is in use, measures should be added to prevent the intrusion of pollutants. Effective measures should be taken to control the intrusion of pollutants, such as installing high-efficiency air filters in the tank breathing holes, new oil must be filtered, etc., but also must improve the anti-pollution ability of the roller press hydraulic cylinder itself. In the seriously polluted environment, it is more important to pay attention to, such as the underground oil roller press hydraulic cylinder should use fluorine rubber (FRM) and nitrile rubber (NBR) dust ring, and the ground mechanical roller press hydraulic cylinder should use nitrile rubber dust ring; The filter device is added to the oil inlet of the roller press hydraulic cylinder of the dump truck, construction machinery, work platform and other equipment, and in order to reduce the oil inlet resistance, the flow area should be increased as much as possible, which can effectively reduce the particle pollution from the system.
The roller press hydraulic cylinder is mainly composed of body, piston, piston rod, roller press hydraulic cylinder head, roller press hydraulic cylinder bottom, piston rod head and related auxiliary devices. The piston divides the roller press hydraulic cylinder into two chambers, and moves reciprocally in the roller press hydraulic cylinder with the help of pressure oil. In order to improve its working effect, there is no sealing ring on the piston to eliminate internal leakage, where the piston rod passes through the roller press hydraulic cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the roller press hydraulic cylinder through the gap, so the sealing device and dust prevention reason are set. At the same time, in order to eliminate the influence of eccentric load on the work of the piston, all the roller press hydraulic cylinders must be provided with a considerable length of guide sleeve at the extended end of the piston rod. In addition, in the case of faster piston movement, the phenomenon of mechanical collision between the piston and the roller press hydraulic cylinder bottom and the roller press hydraulic cylinder head is serious, so the buffer deceleration should be set at both ends of the roller press hydraulic cylinder The working medium of the roller press hydraulic cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; roller press hydraulic cylinder sealing device: The use of Yx sealing ring, polyurethane (PU) and polytetrafluoroethylene (PTFE) materials combined to achieve a good sealing effect; Buffer mechanism of the roller press hydraulic cylinder: The buffer structure of the roller press hydraulic cylinder is to prevent the piston from colliding with the roller press hydraulic cylinder head at the end of the stroke.
Analysis of commonly used seals: The wear ring and slip ring commonly used on the roller press hydraulic cylinder are generally made of polytetrafluoroethylene + graphite, because pure polytetrafluoroethylene is easy to produce plastic creep, which is only suitable for low pressure and low wear resistance conditions. If the sealing ring used is a composite material formed after adding graphite filler, the performance can be effectively improved, the ability to resist plastic creep is increased by 2 to 3 times, the initial deformation caused by the load is reduced by 30 to 60% : the rigidity is increased by 2 to 3 times: the dimensional stability under heat is increased by 2 times, and the hardness is increased by l0 to 15%.
Two cylinders have a reversing control, if the load of the two cylinders is not the same, how to ensure their synchronization?
The piston rod of the cylinder is required to extend synchronization: install A shunt collector valve or synchronous motor at port A of the direction control valve, and then connect the two outlets of the shunt collector valve to the rod-free cavity of the two cylinders respectively. It is required that the outlet of the diverter collector valve is connected to the rod cavity of the two cylinders respectively when the piston rod is withdrawn in synchronization. The synchronization performance depends on the quality of the diverter valve and the leakage of the hydraulic system.
What steel pipe does hydraulic cylinder use? This problem is very general. Carbon steel pipe or ordinary seamless steel pipe are all ok, but then there are rolling, quilting, heat treatment and other steps, and the requirements are different, the wall thickness is different, the material is different. It depends on the circumstances.
Add Wechat