This article mainly introduces:
Slovakia hydraulic cylinder,rack cylinder manufacturer,rack cylinder
(Slovakia rack cylinder,produced by Hengyu Hydraulic Co., Ltd）
rack cylinder are widely used in Slovakia，because of long service life，smooth movement，high work efficiency.So our company has designed rack cylinder for customers from Slovakia.
The rack cylinder should be vented: when the rack cylinder is installed or parked for a long time to work again, the air will penetrate into the rack cylinder and the pipeline system. In order to prevent the abnormal phenomenon of crawling, noise and heating of the actuator, the air in the rack cylinder and the system should be discharged. In order to facilitate the removal of air deposited in the rack cylinder, the oil is best entered and discharged from the highest point of the rack cylinder. rack cylinders that require higher motion stability are often equipped with exhaust plugs at both ends. Before working, unscrew the exhaust plug to make the piston go back and forth several times without load in the whole stroke, and the air can be discharged through the exhaust plug. After the air is drained, tighten the exhaust plug before working.
Factors that should be considered when selecting the oil seal in the rack cylinder: some specific factors should be taken into account when selecting the oil seal in the rack cylinder, so as to have correct consideration and get accurate results, and then avoid wrong selection. The factors and aspects that should be taken into account are eight: rack cylinder diameter, piston rod diameter, piston rod and piston groove size, rack cylinder working pressure, rack cylinder movement speed, hydraulic system oil temperature and rack cylinder working environment.
rack cylinder installation precautions: Before installing the rack cylinder into the system, the parameters on the rack cylinder label should be compared with the parameters when ordering. The base of the rack cylinder must have sufficient stiffness, otherwise the rack cylinder will bend upward into a bow when pressurized, so that the piston rod will bend.
When the long-stroke rack cylinder rotates horizontally, the piston rod bends due to its own weight, causing the guide sleeve and piston to produce biased load, resulting in rack cylinder head seal damage, oil leakage, and piston sleep in the rack cylinder. The following measures can be taken: increase the piston plan to adjust the piston outer circle and process it into a convex drum, so that the piston can self-position, improve the force situation, and reduce and avoid pulling the rack cylinder; The piston and the piston rod are connected with a spherical joint.
What is the problem that the cylinder stroke is not in place?
1. Mechanical cause: the piston rod bends; If there is a synchronous cylinder, the stroke of the two cylinders may be different. 2. Hydraulic reason: the system back pressure is too large; The actuator load increases while the system pressure decreases. The electric is not sent, the reversing valve is not reset or stuck, the oil is too dirty, there is gas in the system, the external inertia load is too large, and the cylinder stroke is not in place.
Why manual forklift oil cylinder can not lift up?
Manual hydraulic forklift truck often can not be pressed up, there are several reasons: for manual hydraulic truck: 1) There is no hydraulic oil 2) the purity of the oil is not enough 3) the adjusting bolt is too close or the adjusting screw is too tight, so that the valve is always open, 4) there is an air in the hydraulic cylinder. Method: 1) Refueling 2) Oil change 3) air discharge. For manual hydraulic stacker, also called manual lift car 1) Less than the amount of oil 2) impurities in the hydraulic oil, so that the check valve can not be closed. Method 1) Add enough hydraulic oil 2) Remove the cylinder, screw off the bottom plate, remove the impurities in the bottom plate.
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