Yangzhou Qianglin Hydraulic Machinery Co., Ltd._Cylinder

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Straight electro-hydraulic push rod

Engineering hydraulic cylinder

Modern techniques

All along, the company has continuously strengthened the technical training of employees and constantly improved production equipment.

Management standard

Safety guarantee

The company has a group of excellent managers, all staff united to create a better future!

With many years of professional technology and experience, we can provide safe and reliable products.

Strength has foundation and quality is guaranteed.

All production processes can be controlled and the quality of products can be monitored and guaranteed at any time.

The quality of the products reaches a higher level and the market share is higher.

Customer satisfaction is high and has strong market competitiveness.

Professional team to provide high quality products

The company has a clear division of labor, and has several technicians, production managers and quality inspectors.

Relying on excellent team to establish a fast feedback mechanism to meet customer needs in a short time;

Provide pre-sale and after-sale guidance for customers

The company's advantage lies in having a creative, passionate and United team.Ensure that the company can effectively improve after-sales service;

Company profile

Yangzhou Qianglin Hydraulic Machinery Co., Ltd. is located in Jiangdu Wujian Industrial Park of Yangzhou, an ancient city of Jiangsu Province. It is located between the Yangtze River and Huaihe River. Beijing-Shanghai, Shanghai-Nanjing and Ningtong Expressways run through it. Its geographical conditions are superior and its land and water transportation is convenient. Yangzhou Qianglin...

Culture

Over the years, all employees of the company insist on the road of "pioneering and...

Honor

We have obtained ISO 9001:2000 Quality System Certification Unit successively.

Application

Pioneering and enterprising, honest and trustworthy, customer first.

The company mainly produces hydraulic cylinders, hydraulic pumping stations, electro-hydraulic push rods, three-way/four-way distributors, plough unloaders, electro-hydraulic gate valves, gates, air locks and so on, which are favored by the majority of users.

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What are the reasons for the noise of the electro-hydraulic push rod?

What are the reasons for the noise of the electro-hydraulic push rod?

Abstract:

What are the reasons for the noise of the electro-hydraulic push rod? 1. The intrusion of air into the hydraulic system is the main reason for noise; 2. The relief valve is unstable. For example, the electro-hydraulic push rod manufacturer introduced that due to the improper fit between the spool valve and the valve hole, the valve core is stuck in the valve hole or moves insensitively, or the poppet valve and the valve seat are stuck by dirt, the damping hole is blocked, and the spring is blocked. Tilt or failure, resulting in system pressure fluctuations and noise; 3. Improper adjustment of the reversing valve, causing the spool of the reversing valve to move too fast, resulting in directional impact, noise and vibration; 4. Mechanical oscillation, such as slender tubing, many elbows, and no fixation. When the oil flow expires, mainly when the flow rate is large, it simply causes the pipeline to vibrate; when the rotating parts of the motor and the hydraulic pump are unbalanced, or the equipment is poorly centered during installation, or the coupling is loose, vibration and noise will occur.

How to add hydraulic oil to the electro-hydraulic push rod

Abstract:

How to add hydraulic oil to the electro-hydraulic push rod The electro-hydraulic push rod is attributed to hydraulic transmission, so it cannot do without hydraulic oil. Therefore, hydraulic oil is the working medium of the electro-hydraulic push rod. The elastic actuator is realized by controlling the forward and reverse rotation of the motor. Electro-hydraulic push rods should select different hydraulic oils according to the requirements of the operating environment. Generally, there are two trademarks of hydraulic oils: 32# and 46#. Select according to the operating pressure of the system For conventional electro-hydraulic push rods, those with the highest operating pressure below 3.5MPa or 8 MPa can choose general hydraulic oil (46# hydraulic oil). If the operating pressure of the special electro-hydraulic push rod is 10MPa or more, or the pressure fluctuates violently, use anti-wear hydraulic oil (but general hydraulic oil may also be used in medium and high pressure systems with a pressure of 8MPa-16MPa). For high-pressure systems above 16MPa, use high-grade anti-wear hydraulic oil with good abrasion resistance to reduce conflict wear. Select according to the operating environment temperature The upper limit of the operating temperature (thermal equilibrium temperature) is 60℃ or 70℃, or the electro-hydraulic push rod is around 80℃, and the lower limit is -20℃, or the temperature change is larger, and hydraulic pressure with higher viscosity index can be selected. Oil (low temperature hydraulic oil, thickened hydraulic oil, etc.). If the lower limit of operating temperature is -30℃, low temperature hydraulic oil or aviation hydraulic oil (32# hydraulic oil) should be used in severe cold area. In short, the freezing point of the hydraulic oil used must be more than 10°C lower than the temperature of the environment. It is necessary to ensure that the hydraulic oil still has the necessary low-temperature fluidity at the ambient temperature to ensure that the electro-hydraulic push rod starts at low temperatures. If the upper limit of the operating temperature exceeds 70℃ or 80℃, consider the use of fire-resistant hydraulic fluids such as phosphate esters and fatty acid esters with good thermal and chemical stability. The domestic industry commonly speaks of "South 46" and "North 32" (namely, South 46# hydraulic oil, North 32# hydraulic oil). The trademark of hydraulic oil refers to the different viscosity of the oil. How much hydraulic oil is required for the first use of the electro-hydraulic push rod? It can be seen from the composition of the electro-hydraulic push rod that the hydraulic oil is provided to the hydraulic oil pump, and the motor drives the hydraulic pump. Therefore, the first time it is used, the hydraulic oil is injected. Make it flow over the hydraulic oil pump, start the motor to drive the hydraulic pump to fill the entire cavity with hydraulic oil, and then add an appropriate amount of hydraulic oil to make the oil level higher than the oil pump. The electro-hydraulic push rod insists on not running out of oil.

Three problems in using hydraulic cylinder

Abstract:

If the hydraulic cylinder can maintain the normal working condition, then can help us to complete a lot of work tasks, and if there are some problems, it will affect the normal performance of its work, so as a user, we need to find out the specific reason in time and deal with it. Below we pass a few problems to analyze the operation of hydraulic cylinder matters needing attention. The first problem, the hydraulic oil in the hydraulic cylinder presents the problem how to do? Trust that every user friend knows, and very clear understanding of the importance of hydraulic oil for the entire system. And in the operation, if the hydraulic oil appears muddy rust color or mixed with a certain amount of water, we must cause attention. In fact, if there is such a problem, we think it is probably due to the simultaneous sealing of the problem. At this time we need to see whether there is oil in the water system, if found seal ring damage should be replaced in time. Second question, in the hydraulic system the main hydraulic cylinder Piston Rod presents the vibration question how to return a responsibility? When encountered in the operation of this problem, we need to carry out a full view, the first to see whether there is a problem of low oil level, such as the need to increase to regular oil level; Secondly, we should check whether there is air leakage in the oil suction system of the main oil pump; thirdly, we should check whether the v-shaped sealing ring of the pushing mechanism is too tight; finally, we should check whether the oil temperature of the hydraulic cylinder is too high. The final question is, what if the temperature of the hydraulic oil used in the hydraulic cylinder is too high? If the operation presents this problem, a time we are very difficult to determine the specific reasons, at this time also need to carry out a series of ability to find specific reasons. Check whether the hydraulic cylinder of the hydraulic pump is in normal load condition; check whether the main relief valve is faulty and often overflow; check whether the hydraulic oil is overheating, sticky and other issues.

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