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Abstract: In this paper, the shortage of test methods for power steering hydraulic pump is analyzed. A new test method is proposed. Proved by the production practice, the test method is easy to operate. The test results can truly and accurately reflect the performance of the steering hydraulic pump. Power steering hydraulic pump test equipment. Test Equipment 1. Introduction The power steering hydraulic pump is the heart of the power steering system. The performance of the power steering system...
The question raised Shenzhen City Flood Control Facilities Luo Yu pumping station is equipped with 630kW vertical pump unit 6, supporting the motor YL630-20. Unit running in flood season, non-flood season outage. Before starting, the rotor of the unit must be jacked up to fill the surface of the long-term stationary thrust bearing bush, so as to avoid burning when starting. Previous artificial top rotor, 6 units need 4 individuals took 1 hour, and a lot of manual labor; now using hydraulic top...
1, the phenomenon of failure and analysis 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...
Key words: oxygen cylinder, alternative, pressurized pump, explored 【Abstract】 Replacement of pressurized pump with oxygen cylinders for hydraulic pressure test discussion 1 Introduction Hydraulic pressure test is the heat pipe installation is necessary after a process. The traditional hydraulic test is to use a pressure test pump to fill the water after the pipeline pressure, pressure to a certain value after the test. However, the complexity of the pressurized pump to extend the hydrostatic...
Pump design mainly consider the pump material, sealing, bearings (cooling, structure, lubrication); structure, the coupling. Bearing frame. Axial force, radial force balance. Sealed form, cooled, and rinsed. High-temperature pump designed to see what is the main transport media. High temperature pump design should pay attention to several issues: 1, the structure of the application of intermediate support. 2, due to the strength of the material and the temperature, so the intensity should be...
Due to the structure of the displacement limit, it is generally considered gear pump can only be used as a constant flow hydraulic source. However, the attachment and threaded coupling valve scheme is effective in increasing its functionality, reducing system costs and increasing system reliability, and as a result, gear pump performance can approach that of costly, complex piston pumps. For example, installing a control valve directly on the pump controls the cost by eliminating piping between...
Abstract: Ethylene plant high-speed centrifugal pump , part of the serial mechanical seal, especially in the operation of naphtha pump failure appeared, high pressure medium through the machine seal, oil seal into the gear box to the top of the oil and trigger the device malfunction. The paper analyzes the operating characteristics of high-speed centrifugal pumps and the causes of equipment damage, and puts forward technical measures for prevention and improvement. 1 Sundyne high-speed...
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, and replacement or repair of friction pairs beyond the mating clearance is required Its performance has been restored. In this paper, direct-axis swash plate piston pump-based, describes its use and maintenance methods. By hydraulic pressure oil tank,...
Symptoms and causes of failure: 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...
JACK & JONES is one of Denmark's Bestseller Group's major brands. Since the advent of the brand in 1972, with its simple and pure style has attracted the eyes of the world's pursuit of fashion men, on behalf of the European fashion men's brand. Currently in the world's 18 countries and regions have set up shop image. JACK & JONES 2010 Fall Couple Jack JONES 2010 Fall Couple
CB series gear pumps are commonly used in agricultural machinery hydraulic system. After a period of gear pump performance, its performance will decline, the survey shows that the main form of gear pump damage is uniform sleeve and gear wear and scratches, the average wear is generally between 0.02-0.50mm, The depth of the mark is usually between 0.05-0.50mm. Due to agricultural time constraints, the urgent need to repair in a short time after damage, but also must take into account the service...
When hydraulic rams used in construction machinery emit excessive noise during operation, this is a harbinger of damage to the pump. Hydraulic ram pump (hereinafter referred to as pump) there are the following eight kinds of noise conditions. Hydraulic plunger pump noise analysis 1. Inherent noise pump inherent noise that pump manufacturing technology has not yet reached the required. For pump mode of operation, each revolution of the pump spindle, each pump plunger to make a suction to the oil...
Recently, Qilu Petrochemical Refinery continuous reforming plant hydrocracking high-speed pump successfully switched to the domestic two mechanical seal, after the transformation of the running in good condition. As the high-speed pump speed up to 19,000 more turn on the mechanical seal of the relatively high requirements of the pump two series of two mechanical seals have been using imported parts. The past two years, due to shortened life expectancy of imported parts, sealing leaks continue...
High Pressure Piston Pump Maintenance _ High pressure piston pump often appear in the use of various problems, to bring a lot of trouble life. Then how do we find and eliminate these failures in time? High-pressure piston pump repair _ High-pressure piston pump Frequently Asked Questions High-pressure piston pump repair - Can not start First check the power supply situation: the connection is solid; switch contact is tight; Fuse Whether it is blown; whether the three-phase power supply is equal...
First, the use of oil pump and jack required oil No. Working oil, generally No. 10 or No. 20 mechanical oil, hydraulic properties can also be similar to other similar oil, such as transformer oil. The oil poured into the tank must be filtered . Frequently used once a month filter, the tank should be cleaned regularly. The tank should generally maintain about 85% of the oil level, should be supplemented in time, the additional oil should be the same as the original pump oil. Oil temperature...
[Asia Pump Network News] High-speed vacuum pump oil is essential for vacuum pump products, Xiaobian today recommended vacuum pump for your essential products 100 high-speed vacuum pump oil vacuum pump oil. High-speed vacuum pump oil_100 vacuum pump oil Recommended high-speed vacuum pump oil_100 vacuum pump oil Recommended high-speed vacuum pump oil_100 vacuum pump oil Recommended 1: Darui Darui vacuum pump oil using natural crude oil vacuum distillation to cut the lubricating oil distillate and...
1) Use a 35L container to let out the oil in the rear axle housing while still hot. 2) If the control valve is in the raised position lift the lift cover and pad a 40 mm thick pad between the covers to force the lift arm to fall and allow the oil in the cylinder to drain from the lower end of the upright pipe. 3) Lift down the hydraulic lift cover, it is best to twist the head of the hydraulic cylinder at the wire sleeve, in order to facilitate the lift. 4) Remove the limit retainer on the...
High pressure water cleaning pump with small size, compact structure, stable and reliable transmission, etc., suitable for high pressure water jet assisted rock breaking coal, underground hydraulic prop for liquid, high pressure water jet cleaning, metallurgical descaling, powder Mo metallurgy, ship cleaning rust pump. So how can we buy a high-quality high-pressure cleaning pump? High pressure cleaning pump maintenance tips? Xiaobian share in this sub-high pressure cleaning pump selection and...
Shanghai -50 tractor hydraulic pump main control valve easy to stagger the main reason: First, the hydraulic device and transmission, rear axle shared oil, gear collision and wear debris generated by iron and other impurities easily used oil contaminated; second is the Machine allows the suspension mass of 300kg, the actual use of rotary tiller or straw machine, and then with the pressure roller, the mass is often between 400-500kg, resulting in a large pressure control valve. To reduce the...
[Asia Pump Network News] horizontal high-quality quiet centrifugal pump is the German Ville Pump Co., Ltd. using advanced hydraulic model of the domestic design and optimization of a pump, then the pump has what kind of features and uses? The following is on the German Ville Pump horizontal high quality silent centrifugal pump features and uses introduction. Germany Ville pump horizontal high quality quiet centrifugal pump features and uses 1, suction pressure ≤ 1.0Mpa, or the maximum working...
Serious wear and tear of hydraulic pump with oil pan, will make it high, low pressure chamber was breakdown. Light heat, power consumption, so that the aging seal, the oil temperature rise, shorten the life of the machine; severe cases will lead to the hydraulic system can not work. A very simple emergency repair method, although not using a dedicated high-precision surface grinder, but the repair effect is very satisfactory. Specific methods are as follows: 1 Required materials 80 mesh, 180...
Vertical high-quality mute pipe pump is a single-stage single suction pipe centrifugal pump produced by Germany Ville Pump Co., Ltd. It adopts the IS centrifugal pump performance parameters, based on the general vertical pump clever With the combination of design, then what are the characteristics and uses of the pump? With this question, the following is the introduction of the characteristics and uses of vertical high-quality quiet pipe pump Ville pump Germany. Germany Ville pump vertical...
Abstract: According to the dispersion and fuzziness of hydraulic pump fault characteristics, an information fusion fault diagnosis method based on vibration and pressure sensors is proposed. Based on the full analysis of the mechanism of the looseness of the hydraulic head, the vibration signal and the pressure signal are denoised by wavelet to effectively extract the characteristic of the ball looseness. The different types of feature parameters are fused with the feature layer, and the BP...
[Pump News Asia] to stop the pump sequence is one of the important steps in the operation of high-pressure reciprocating pump, then the high-pressure reciprocating pump in the stop pump, what order to comply with it? The following is the order of the high-pressure reciprocating pump to stop the pump. High pressure reciprocating pump stop pump sequence (1) received a hydraulic press "request shutdown" signal, immediately send back to the hydraulic press "can stop" signal; (2)...
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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.