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Recently, Shanghai Lujiazui Financial Center, the main height of 580 meters Shanghai Center successfully capped. The "China Pump King," said the reputation of the Trinity EHV trailers again to break the record, to create a single pump vertical pumping new heights. Shanghai Center is the first high-rise over 600 meters in China with a core of 123 floors up to 580 meters. The core of the cap, for the industry has set a super high-level pumping of the classic model project, creating a...
Arc spraying repair technology of gear pump 1, the principle and characteristics of arc spraying Arc coating technology in the past 20 years in materials, equipment and applications developed rapidly, its working principle is to be two sprayed wire as a melting electrode 2, gear pump arc spraying repair process Bushing bore, sleeve outer circumference, gear shaft and pump casing uniform wear and scratches in the 0.02-0.20mm, should adopt high hardness, strong combination with the body parts,...
Recently, Wuhan Heavy Industry Casting and Forging Co., Ltd. to undertake the first 2800-horsepower fracturing pump five-cylinder piston pump crankshaft developed successfully, has been successfully shipped. The fracturing pump truck is a newly developed petroleum equipment company, the development and production of its first piece of piston pump crankshaft by Wuhan Heavy Industries, after the successful development of production, there will be orders for bulk products. On the basis of...
3 precautions when installing the gear pump in the hydraulic system: 1, the hydraulic pump shaft and motor drive shaft concentricity deviation of less than 0.1MM, the general use of flexible coupling, V belt does not allow direct drive shaft rotation, to prevent the pump shaft by the radial force is too large, the impact Pump's normal operation; 2, the direction of rotation of the hydraulic pump and inlet and outlet ports should be installed as required; 3, various types of hydraulic pump...
NYP High Viscosity Pumps Gear pumps that deliver high viscosity fluids should deliver the most flow at lower power consumption, less leakage, and greater pressure. In determining the media to be transported, it should strictly follow the provisions of the product manual, try to use the manufacturer recommended fluid medium, and pay attention to consider the system operating temperature range. When you want to use in a wide range of temperature, the viscosity of the conveying medium should be...
1, the working fluid should be kept clean. It is recommended to install a filter with a filtration precision of 80 ~ 100μm on the oil suction pipe of the pump. The oil return pipe should be equipped with an oil filter with a filtration precision of not less than 25μm and periodically cleaned according to the oil pollution or replace. 2, hydraulic gear pump into the oil side if the filter, you should ensure that the effective filter oil flow rate should be greater than twice the maximum pump...
First, the hydraulic pump failure phenomenon and analysis 1. Check the boom cylinder leakage situation. The easiest way is to raise the boom to see if there is a clear free fall. If the whereabouts of obvious removal of the fuel tank inspection, seals have been worn should be replaced; 2. Check the control valve. First clean the safety valve, check whether the spool wear, such as wear and tear should be replaced. If there is still no change after installation of safety valve, and then check the...
1, hydraulic gear pump installation, the base or bracket celebrate enough rigidity, hydraulic gear pump shaft in addition to the rotation generated by the torque, in principle, should not bear the role of other forces; the difference between the coupling shaft Axis is not greater than 0.05mm; hydraulic gear pump should be calibrated rotation direction, pay attention to the location of the oil inlet and outlet, large hole for the inlet. 2, the hydraulic system must be set safety valve, with the...
Hydraulic pump failure phenomenon and reason analysis: Hydraulic pump in the repair from the following three points to find the cause of the malfunction, and the system to improve: (1) check the boom cylinder leakage situation. The easiest way is to raise the boom to see if there is a clear free fall. If the whereabouts of obvious removal of fuel tank inspection, seals have been worn should be replaced. (2) check the control valve. First clean the safety valve, check whether the spool wear,...
Vane pump common troubleshooting - pump temperature is too high 1. Pressure is too high, too fast 2. Oil viscosity is too large 3. Tank cooling conditions are poor 4. Serious friction with the oil pan and rotor 5. Tank volume is too small 6. Blade And the inner surface of the stator wear serious 1. Adjust the pressure valve to reduce the rotation speed 2. Choose the appropriate viscosity of the oil 3. Increase the tank volume or increase the cooling device 4. Repair or replacement with oil pan...
When the excavator hydraulic pump serious wear and tear on the excavator has a fatal impact, excavators such problems must be promptly resolved. Excavator hydraulic pump repair from the following three points to find the cause of the malfunction: (1) check the boom cylinder leakage situation The easiest excavator hydraulic pump maintenance method is to boom up to see if there is a clear free fall. If the whereabouts of obvious removal of fuel tank inspection, seals have been worn should be...
The efficiency of the hydraulic system depends primarily on the volumetric efficiency of the hydraulic pump. When the volumetric efficiency drops to 72%, routine maintenance, replacement of bearings and aged seals, replacement or repair of friction pairs beyond the mating clearance are required, Be restored. 1, hydraulic pump: Straight shaft swash plate piston pump is divided into two types of self-suction oil pressure type. Most of the pressure supply type hydraulic pump with air pressure...
Rust or replace the pump oil pipeline. Should be carefully reviewed, integrated, when the CY-A 8V107ER type hydraulic pump failure. Symptomatic solution to prevent the demolition of large demolition into a new fault. Low efficiency 1 pump body fever. 1 hydraulic oil poor quality, low viscosity But not mixed. Should replace DTE25 Mobil) or HM-N68 Great Wall) hydraulic oil. 2 pump the whole plane parallel to the damage When its with the cylinder surface with a thin pull marks, ① the hydraulic...
To extend the life of hydraulic plunger pump method: The efficiency of the hydraulic system depends primarily on the volumetric efficiency of the hydraulic pump. When the volumetric efficiency drops to 72%, routine maintenance, replacement of bearings and aged seals, replacement or repair of friction pairs beyond the mating clearance are required, Be restored. 1, hydraulic pump: Straight shaft swash plate piston pump is divided into two types of self-suction oil pressure type. Most of the...
The main features of high viscosity pump are: ① radial hydraulic pressure, radial meshing force balance, so the pump life and reliability greatly improved; ② pump output displacement and flow, small flow pulsation. So that new products with higher added value and competitive advantage, in order to deal with the lack of the traditional two-gear gear pump supply a new path, can replace the existing gear pump, screw pump, etc., in the petrochemical, light industry, food High viscosity liquid...
CBF-F (10 ~ 40) Series High Pressure Gear Pump 【Use and Features】 CBF-F series of high-pressure gear pump, hydraulic system is the power components. It uses high-strength aluminum alloy shell, high bearing capacity DU bearing and floating side panels and other structures, with high pressure, wide speed range, simple structure, light weight, reliable, long service life and so on. Widely used in construction machinery, mining machinery and lifting transport machinery and other hydraulic systems....
Hydraulic pump is a hydraulic system of power components, its role is to convert the mechanical energy of the prime mover into liquid pressure energy, refers to the hydraulic system in the oil pump, which provides power to the entire hydraulic system. The structure of the hydraulic pump are generally gear pump , vane pump and piston pump . The principle of a hydraulic pump is a hydraulic element that provides pressurized fluid for a hydraulic drive and is a type of pump. Its function is to...
Concrete pump hydraulic system heating fault and troubleshooting: First, the concrete pump hydraulic system heating phenomenon hazards Concrete pump hydraulic system heating, a direct impact on the normal operation of concrete pumps, fever caused by the hazards, mainly in the following points: (1) the working fluid temperature increases, the viscosity of the working fluid decreased pump leakage increased, The actual flow of the pump has decreased; (2) the hydraulic system and components of the...
In the maintenance of the following three points to find the cause of the malfunction, and the system to improve: (1) check the boom cylinder leakage situation. The easiest way is to raise the boom to see if there is a clear free fall. If the whereabouts of obvious removal of fuel tank inspection, seals have been worn should be replaced. (2) check the control valve. First clean the safety valve , check whether the spool wear, such as wear and tear should be replaced. If the safety valve is...
The efficiency of the hydraulic system depends primarily on the volumetric efficiency of the hydraulic pump. When the volumetric efficiency drops to 72%, routine maintenance, replacement of bearings and aged seals, replacement or repair of friction pairs beyond the mating clearance are required, Be restored. A hydraulic pump oil supply form Direct-axis swash plate piston pump is divided into two types of self-suction oil pressure type. Most of the pressure supply type hydraulic pump with air...
How to lift the high-viscosity pump failure High-viscosity pump is a structure and working principle common gear pump, it is running smoothly and service life and other aspects of significantly better than the existing gear pump. The new gear pump according to "the displacement of the pump unit when the volume of the smallest" as an optimization objective, improve pump cost. The main features of high viscosity pump are: ① radial hydraulic pressure, radial meshing force balance, so the...
Hydraulic gear pump is composed of a pair of intermeshing gear, through the gear meshing and separation of the tooth rotation to form a change in the volume of oil and oil pressure. When the gear meshing, the meshing between the two teeth of the hydraulic oil due to the closure of the teeth can not be discharged to form a trapped oil phenomenon. Trapped oil will produce high pressure, side pressure on the shaft, easy to bend the shaft, premature bearing damage, but also consume the motor power....
In the maintenance of the following three points to find the cause of the malfunction, and the system to improve: (1) check the boom cylinder leakage situation. The easiest way is to raise the boom to see if there is a clear free fall. If the whereabouts of obvious removal of fuel tank inspection, seals have been worn should be replaced. (2) check the control valve. First clean the safety valve , check whether the spool wear, such as wear and tear should be replaced. If there is still no change...
The hydraulic system efficiency of a construction machine depends mainly on the volumetric efficiency of the hydraulic pump. When the volumetric efficiency drops to 72%, routine maintenance, replacement of bearings and aged seals are required. Replacement or repair of the friction pair beyond the mating clearance is required Its performance has been restored. In this paper, direct-axis swash plate piston pump-based, describes its use. 1. Hydraulic pump oil supply form Direct-axis swash plate...
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.