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grate cooling hydraulic cylinder Sold to Portugal

Release time:2023-11-12 15:28:53 Hits: Current position: Home > News

This article mainly introduces:

Portugal hydraulic cylinder,grate cooling hydraulic cylinder manufacturer,grate cooling hydraulic cylinder

Portugal grate cooling hydraulic cylinder

(Portugal grate cooling hydraulic cylinder,produced by Hengyu Hydraulic Co., Ltd)

grate cooling hydraulic cylinder are widely used in Portugal,because of long service life,smooth movement,high work efficiency.So our company has designed grate cooling hydraulic cylinder for customers from Portugal.

Introduction to grate cooling hydraulic cylinder:

How the cavitation of the grate cooling hydraulic cylinder is formed: With the gradual rise of pressure, the gas in the oil will become bubbles, when the pressure rises to a certain limit value, these bubbles will break under the action of high pressure, so that the high temperature and high pressure gas will quickly act on the surface of the parts, resulting in cavitation of the grate cooling hydraulic cylinder, resulting in corrosive damage to the parts.

When installing the grate cooling hydraulic cylinder, the axial ends of the grate cooling hydraulic cylinder cannot be fixed. Due to the effect of liquid pressure and thermal expansion in the grate cooling hydraulic cylinder, there is axial expansion. If the two ends of the grate cooling hydraulic cylinder are fixed, all parts of the grate cooling hydraulic cylinder will be deformed. When disassembling the grate cooling hydraulic cylinder, it is strictly forbidden to hammer the grate cooling hydraulic cylinder and the piston surface, such as the grate cooling hydraulic cylinder hole and the piston surface is damaged, do not allow sandpaper grinding, to use a fine oil stone carefully grinding. The clearance between the guide sleeve and the piston rod should meet the requirements.

Under normal circumstances, the grate cooling hydraulic cylinder is composed of the rear end cover, body, piston, piston rod and front end cover and other main parts. In order to prevent the working medium from leaking out of the grate cooling hydraulic cylinder or from the high pressure chamber to the low pressure chamber, a sealing device (sealing ring) is arranged between the grate cooling hydraulic cylinder and the end cover, the piston and the piston rod, the piston and the grate cooling hydraulic cylinder, the piston rod and the front end cover. A dustproof device is also provided on the outside of the front end cover. In order to prevent the piston from impacting the end cap when it moves rapidly to the end of the stroke, the end of the grate cooling hydraulic cylinder can also be provided with a buffer device. If necessary, the exhaust device should be set in order to exhaust.

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

Answers to some questions about grate cooling hydraulic cylinder:

How to repair if hydraulic shears cylinder oil leakage?
The hydraulic cylinder is generally disassembled and the sealing ring is replaced. There are generally two ways to install the ends of the hydraulic cylinder. The larger hydraulic cylinder is mostly flanged disc type, which is screwed to the middle cylinder block by several bolts, the bolts are removed, and the cylinder head is slowly pulled out. The smaller hydraulic cylinder, the cylinder block and the head itself are threaded, and the rotating end cap can be removed from the cylinder block. If you do not understand the hydraulic cylinder, it is best to ask someone to deal with it. It is easy to damage the sealing ring and internal surface during disassembly.

How to select the propulsion cylinder according to the shield attitude, cylinder stroke, shield tail clearance and other factors?
Generally, the shield machine will be equipped with the corresponding cylinder. Soil pressure balancing machine, mud water balancing machine have the corresponding cylinder, there will be no insufficient cylinder force. In the jacking process of the pipe jacking machine, there are certain requirements for the jacking force of the cylinder.

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