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The second generation pumping technology of concrete delivery pumps: fully hydraulic controlled reversing technology

The second generation pumping technology of concrete delivery pumps: fully hydraulic controlled reversing technology

The first generation of pumping technology: electric control commutation technology, PLC control solenoid valve commutation to achieve alternating commutation of pumping and S-pipe distribution. The biggest drawback is that the machine assembly is simple and the production cost is low, but the electrical control is complex, with high failure rates and maintenance costs, which can easily delay the project progress. The second generation pumping technology: hydraulic reversing technology, completely relying on the changes in hydraulic signals of the main cylinder and distribution small cylinder to achieve action reversing.

26

2023

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04

Causes and Preventive Measures of Air Erosion in Hydraulic Cylinders of Engineering Equipment

Causes and Preventive Measures of Air Erosion in Hydraulic Cylinders of Engineering Equipment

The factors affecting cavitation are that when the surface of hydraulic cylinder parts moves relative to hydraulic oil, the gas dissolved in the hydraulic oil is prone to precipitate and form bubbles. After these bubbles flow to the high-pressure zone, they rupture, and the high-temperature and high-pressure micro jet and impact force generated in an instant repeatedly act on the surface of hydraulic cylinder parts, causing cavitation on the surface of the parts. The conditions for the occurrence of hydraulic cylinder cavitation are related to the hydraulic system structure, hydraulic cylinder component materials, hydraulic oil quality, manufacturing and maintenance, and other aspects.The factors affecting cavitation are that when the surface of hydraulic cylinder parts moves relative to hydraulic oil, the gas dissolved in the hydraulic oil is prone to precipitate and form bubbles. After these bubbles flow to the high-pressure zone, they rupture, and the high-temperature and high-pressure micro jet and impact force generated in an instant repeatedly act on the surface of hydraulic cylinder parts, causing cavitation on the surface of the parts. The conditions for the occurrence of hydraulic cylinder cavitation are related to the hydraulic system structure, hydraulic cylinder component materials, hydraulic oil quality, manufacturing and maintenance, and other aspects.

26

2023

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04

Maintenance and upkeep methods for hydraulic cylinder failure

Maintenance and upkeep methods for hydraulic cylinder failure

Protect the outer surface of the piston rod to prevent damage to the sealing element caused by bumps and scratches. Regularly clean the dust seal of the oil cylinder and the exposed piston rod to prevent dirt that is difficult to clean from sticking to the surface of the piston rod from entering the oil cylinder and damaging the piston, cylinder barrel, or sealing element.

26

2023

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04

Classification and Application of Hydraulic Cylinders

Classification and Application of Hydraulic Cylinders

Hydraulic cylinders, also known as hydraulic cylinders, can be mainly divided into five categories: double acting double piston rod hydraulic cylinders, single acting plunger hydraulic cylinders, telescopic hydraulic cylinders, plunger hydraulic cylinders, and rack piston hydraulic cylinders. The first four types of hydraulic cylinders all achieve linear reciprocating motion, outputting thrust and speed; The rack piston hydraulic cylinder achieves swing motion, outputting torque and angular velocity.

30

2023

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05

Causes of hydraulic cylinder operation failure

Causes of hydraulic cylinder operation failure

Analysis of the causes of hydraulic cylinder operation failure by the manufacturer? The hydraulic cylinder is a functional component of the hydraulic system, and the occurrence of its operating problems is not only related to the hydraulic cylinder itself, but also to the entire system. Therefore, when cleaning up the operating problems of the hydraulic cylinder, it is necessary to carefully investigate the symptoms of the problem, choose logical reasoning and force one by one method, carefully analyze the cause of the problem from the outside to the inside, and then determine the cleaning method to prevent blind disassembly and unloading. Among the many causes of hydraulic cylinder operation problems, improper equipment, operation, and protection are the reasons for their formation. This type of problem will not be discussed here. This article only provides a systematic analysis of the common typical operating problem - poor hydraulic cylinder operation.

30

2023

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05

Three key points for using engineering hydraulic cylinders

Three key points for using engineering hydraulic cylinders

The packaging and transportation of hydraulic cylinders are a very important part of the hydraulic transmission system, mainly responsible for organizing the work of the main engine. Therefore, strict packaging must be carried out, and the transportation process must be very cautious. Whether it is packaging or transportation, it is necessary to do a good job in dust prevention. Measures for shock absorption and moisture prevention.

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2023

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