Release time：2023-11-12 15:29:29 Hits： Current position: Home > News
This article mainly introduces:
Tanzania hydraulic cylinder,hydraulic support cylinder manufacturer,hydraulic support cylinder
(Tanzania hydraulic support cylinder,produced by Hengyu Hydraulic Co., Ltd）
hydraulic support cylinder are widely used in Tanzania，because of excellent temperature resistance，clever hydraulic energy conversion，simple structure and reliable operation.So our company has designed hydraulic support cylinder for customers from Tanzania.
If the hydraulic support cylinder is sliding or crawling (stop and go), check whether there is any astringency inside the hydraulic support cylinder. The internal parts of the hydraulic support cylinder are improperly assembled, the parts are deformed, worn or the shape and position tolerance is excessive, and the action resistance is too large, so that the piston speed of the hydraulic support cylinder changes with the different stroke position, and there is slip or crawl. Most of the reasons are due to poor assembly quality of parts, surface scars or sintered iron filings, so that the resistance increases, the speed decreases. For example, the piston is different from the piston rod or the piston rod is bent, the hydraulic support cylinder or the piston rod is offset from the mounting position of the guide rail, and the sealing ring is too tight or too loose. The solution is to repair or adjust, replace damaged parts and remove iron filings. At the same time, check whether the lubrication is good or whether the hydraulic support cylinder bore processing is out of whack. Because the piston and hydraulic support cylinder, guide rail and piston rod are relative If the hydraulic support cylinder is crawling seriously, check whether air has entered the hydraulic system. Air compression or expansion can cause the piston to slip or crawl. The exclusion measures are to check the hydraulic pump, set up a special exhaust device, and quickly operate the exhaust several times in the full stroke. Check the seals at the same time, because the quality of the seals is directly related to slippage or crawling. When the O-ring is used under low pressure, compared with the U-ring, it is easy to slip or crawl because of the higher surface pressure and the larger difference between static and static friction resistance. The surface pressure of the U-shaped sealing ring increases with the increase of pressure, although the sealing effect is correspondingly improved, but the difference between static and static friction resistance is also larger, the internal pressure increases, affecting the rubber elasticity, due to the increase in the contact resistance of the lip, the sealing ring will tip over and the lip elongation, and it is also easy to cause slip or crawling hydraulic support cylinder weight composition and calculation. The weight of the hydraulic support cylinder is composed of the hydraulic support cylinder diameter, the outer diameter and weight of the hydraulic support cylinder, the rod diameter, and the weight of the accessories, so in calculation, it is to add all these together to get the specific value. However, if there are special circumstances, it may be calculated separately. This work can be carried out by yourself, but it can also be carried out by professionals, so that mistakes can be avoided.
When the hydraulic support cylinder is installed, the piston and the hydraulic support cylinder head and other parts have large mass, large size and large inertia, even if there is a lifting equipment auxiliary installation, because the specified clearance is small, no matter how hard it will be put into, therefore, the end of the piston or the hydraulic support cylinder head boss is easy to cause scars when it hits the inner surface of the hydraulic support cylinder wall. The solution to this problem: for a large number of small products, the use of autocratic assembly oriented tools during installation; For heavy, thick and large large and medium-sized hydraulic support cylinders, only careful and careful operation can be avoided.
hydraulic support cylinder buffer valve inspection and maintenance: For the valve buffer hydraulic support cylinder, the focus should be on checking the wear of the buffer valve spool and seat. Once it is found that the amount of wear increases and the seal fails, it should be replaced. It can also be repaired by using abrasive spool and seat matching grinding method.
The meaning of the hydraulic support cylinder model marked by the hydraulic support cylinder manufacturer: for example, 160/100-1150, its meaning: from a professional point of view, 160 refers to the hydraulic support cylinder diameter, which is 160mm, and the 100 behind refers to the rod diameter, which is 100mm. The 1150 refers to the hydraulic support cylinder stroke, which is 1150mm. Therefore, on this point, we should have a correct understanding and can not make mistakes.
PLC+ inverter + motor + pump + solenoid valve + cylinder combination, can control the accuracy of cylinder position?
In the case of extremely high accuracy requirements, you can not, please consider a few problems: 1, hydraulic oil can be compressed, it is elastic like a spring. Therefore, in the general hydraulic servo system, the valve control is far more accurate than the pump control. Because the valve can be installed very close to the hydraulic cylinder, or even installed on the hydraulic cylinder, but the pump must go through the tubing and then into the hydraulic cylinder, there is a long distance, which greatly reduces the rigidity of the system and increases the difficulty of control. 2, the quantitative pump is first of all leaking, and there is 10%-20% flow pulsation. Secondly, and more unfortunately, the leakage of the pump is related to the pressure and is non-linear.
How big is the 100t cylinder pump and how big is the motor?
Load is calculated at 15 tons, stroke is calculated at 100 (both take the maximum) 15 tons = 15,000 kg, 15,000/210 bar (21 mpa) =71.42 square centimeters (cylinder area) 71.42/3,14 In the root *2=90,5 the inner diameter of the cylinder can be taken 100 mm. Travel 100 cm, that is, one meter, assuming 10, seconds a back and forth, then it is six times a minute, six meters per minute, then the required flow is,71,42*600 cm (6 meters) =42840 mm =42.84 liters/minute 42.84*21/60=14.9 kilowatts can choose 1450 RPM 4-stage motor 15KW.
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