This article mainly introduces:

Denmark hydraulic cylinder,shearing machine cylinder manufacturer,shearing machine cylinder

(Denmark shearing machine cylinder,produced by Hengyu Hydraulic Co., Ltd）

shearing machine cylinder are widely used in Denmark，because of smooth movement，high work efficiency，excellent fatigue and impact resistance.So our company has designed shearing machine cylinder for customers from Denmark.

Introduction to shearing machine cylinder:

The shearing machine cylinder is mainly composed of body, piston, piston rod, shearing machine cylinder head, shearing machine cylinder bottom, piston rod head and related auxiliary devices. The piston divides the shearing machine cylinder into two chambers, and moves reciprocally in the shearing machine 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 shearing machine cylinder head, due to the existence of the gap, it is easy to produce external leakage phenomenon, and the dust can enter the shearing machine 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 shearing machine 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 shearing machine cylinder bottom and the shearing machine cylinder head is serious, so the buffer deceleration should be set at both ends of the shearing machine cylinder The working medium of the shearing machine cylinder: because it works at room temperature, the ordinary oil-type hydraulic oil can be selected; shearing machine 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 shearing machine cylinder: The buffer structure of the shearing machine cylinder is to prevent the piston from colliding with the shearing machine cylinder head at the end of the stroke.

Improve the service life of the shearing machine cylinder: it is necessary to maintain the normal clearance of the combined surface of the hydraulic components. When manufacturing or repairing the main parts of the shearing machine cylinder (such as the shearing machine cylinder block, piston rod, etc.), the assembly should be carried out in accordance with the tolerance lower limit of the assembly size, which can well reduce the occurrence of cavitation. If cavitation has occurred in the hydraulic components, only metallographic sandpaper polishing technology can be used to remove cavitation pitting and surface carbon deposits, and general fine sandpaper must not be used for polishing After the shearing machine cylinder is repaired, the hydraulic system should run smoothly for a certain period of time so that the hydraulic oil in the hydraulic system can be fully circulated; If necessary, the shearing machine cylinder inlet pipe (or return pipe) can be disassembled. Make the hydraulic oil overflow to achieve the effect of single shearing machine cylinder exhaust.

The shearing machine cylinder should be used as far as possible to avoid the transverse force, sometimes the piston rod to bear the transverse load is too large, especially do not force or pull the shearing machine cylinder, bite. Elimination method: When installing the shearing machine cylinder, ensure that the axis position of the shearing machine cylinder is consistent with the direction of movement; Make the load borne by the shearing machine cylinder as far as possible through the shearing machine cylinder axis, to avoid the phenomenon of eccentricity.

The method of sleeve shearing machine cylinder to improve the processing quality: there is a big gap in the service life of post-plating polishing and post-plating polishing, especially in mass production. Strictly clean the flying edge and burr of mechanical components, especially the edge of the sealing groove, and the tiny metal burr, strictly clean before assembly. The surface fatigue strength and stress corrosion resistance of the shearing machine cylinder can be significantly improved by rolling in the finishing of the inner holes of the shearing machine cylinder. The roughness of the surface of the friction pair is generally controlled between Ra0.4 and 0.8.

Answers to some questions about shearing machine cylinder:

Is there a way to make the cylinder stop pushing when it hits something hard during the process of pushing?
The simplest solution is to press the stop switch, this switch has a mechanical type, touch the object on the action or send a stop signal, through the operation of the motor control cylinder; There is also an induction switch, that is, when the hydraulic cylinder expands to the range of the induction switch can sense the signal, it sends a signal to let the motor act, resulting in the corresponding action of the cylinder.

Is rubber or polyurethane better for V-ring of hydraulic cylinder?
The hydraulic cylinder V-type seal ring is better with polyurethane, and chlorine rubber is used for various chemicals and high temperatures, especially when there are wear-resistant requirements, polyurethane rubber is needed. But the price of polyurethane rubber is much more expensive than the price of rubber. However, the V-ring material is most commonly used in nitrile and neoprene rubber, and natural rubber is used for sealing water and air. Butyl rubber is used for non-combustible hydraulic fluids and phosphate ester hydraulic fluids. The advantage is that the price is cheaper than the polyurethane material, and the disadvantage is that it is not wear-resistant and the anti-aging property is relatively poor.