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trunnion cylinder Sold to Portugal

Release time:2023-11-13 11:19:24 Hits:107 Current position: Home > News

This article mainly introduces:

Portugal hydraulic cylinder,trunnion cylinder manufacturer,trunnion cylinder

Portugal trunnion cylinder

(Portugal trunnion cylinder,produced by Hengyu Group)

trunnion cylinder are widely used in Portugal,because of clever hydraulic energy conversion,simple structure and reliable operation,excellent temperature resistance.So our company has designed trunnion cylinder for customers from Portugal.

Introduction to trunnion cylinder:

The repair method of trunnion cylinder wear: 1. Metal repair material is applied to the scratched surface; The first layer should be thin, uniform and fully covered with the scratched surface to ensure the best adhesion between the material and the metal surface, and then apply the material to the entire repair site and press repeatedly to ensure that the material is filled and reaches the required thickness, so that it is slightly higher than the surface of the guide rail; 2, the material at 24℃ to fully achieve the performance of 24 hours, in order to save time, can be through the tungsten halogen lamp to increase the temperature, the temperature rises 11℃, the curing time will be reduced by half, the best curing temperature 70℃; 3. After the material is cured, use a fine grinding stone or a scraper to repair and smooth the material higher than the surface of the guide rail, and the construction is completed.

The commonly used buffer structure of the trunnion cylinder is composed of a piston boss and a trunnion cylinder head groove. When the piston moves close to the trunnion cylinder head, it gradually enters the groove, and the oil in the groove is extruded through the gap between the boss and the groove, which increases the oil return resistance, produces the braking effect and realizes the buffer. Generally, a buffer mechanism should be used when the pressure is above 10MP.

Do not regularly check the damage of the chrome layer of the trunnion cylinder: completely extend the trunnion cylinder and carefully check whether there is any surface damage such as injury, strain, welding slag, such as the surface damage position, in the trunnion cylinder block < 20cm, and the damage depth < 5mm, should be repaired in time to prevent long-term damage to the trunnion cylinder seal. Welding slag is strictly prohibited on the surface of the trunnion cylinder.

trunnion cylinder is the most important part of construction machinery, the traditional processing method is: broaching trunnion cylinder block - fine boring trunnion cylinder block - grinding trunnion cylinder block. The rolling method is: broaching trunnion cylinder block - fine boring trunnion cylinder block - rolling trunnion cylinder block, the process is 3 parts, but the time is compared: grinding 1 meter of the trunnion cylinder block is about 1-2 days, rolling 1 meter of the trunnion cylinder block is about 10-30 minutes. Input comparison: grinding machine or quilting machine (tens of thousands - millions), rolling knife (ten thousand - tens of thousands). After rolling, the surface roughness of the hole decreases from RA3.2-6.3 μm before rolling to Ra0.4 ~ 0.8μm, the surface hardness of the hole increases by about 30%, and the fatigue strength of the inner surface of the trunnion cylinder increases by 25%. If the trunnion cylinder life is only considered, it is increased by 2 to 3 times, and the boring and rolling process is 3 times more efficient than the grinding process In particular, if you want to make high-quality trunnion cylinders, you must take the rolling production process. After the trunnion cylinder is rolled, there is no sharp tiny edge on the surface, and long-term motion friction will not damage the seal ring or seal, which is particularly important in the hydraulic industry.

Answers to some questions about trunnion cylinder:

When the superimposed hydraulic control valve is added to the bottom of a solenoid valve and a double directional throttle valve, why does the cylinder shock on the return trip?
The stack hydraulic control check valve must be added above the stack one-way throttle valve.

What is the reason why the hydraulic cylinder is not good at lifting?
There may be several situations 1, whether the slow one is worn 2, whether there is air in the slow cylinder 3, if the two cylinders are supplied by the same oil port, whether the slow joint is blocked (some processing residue will reach a certain oil port under a certain coincidence condition, This situation will not happen if it is not necessarily good before) 4, the oil seal in the slow cylinder leaks, causing the feed oil to leak from the return oil end. Point 4 is most likely because it is invisible and a technical failure. If it is a dual oil feed (separate oil feed), it is also necessary to check the oil supply system and the oil return system (valve type).

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