The birth of new wireless power transmission system: 1 meter range can be efficient transmission
A recent study published in the journal Nature by the British magazine Nature says the U.S. research team made use of the principle of parity-time symmetry (PT symmetry) to create a wireless power transmission system with different distances within 1 meter Can achieve efficient power transmission. In the experiment, the LED light can be successfully charged away from the power supply. The development of wireless power transmission technology will lay the foundation for many applications in...
Proper selection and installation of punch press die is not a neglected part of punch press maintenance
The service life of CNC punch press, in addition to the reasonable mold structure, high manufacturing precision, good heat treatment effect and correct selection of the punch and punch press mold installation accuracy, the correct use, maintenance and maintenance of the mold can not be ignored. In this regard, the following points should be noted: (1) The mold should be strictly inspected before installation to remove dirt, check whether the guide sleeve and mold of the mold are well...
Hydraulic pump piston pump and jet pump working principle difference
The most widely used hydraulic pump applications are the hydraulic piston pump and hydraulic jet pump, both of which are used in oil pumping units, but the working principle is different, to understand that the hydraulic Pumps are better for your use, and you need to start by understanding how they work. Hydraulic piston pump is a hydraulically driven rodless pumping unit. It consists of ground pump group, wellhead equipment and pipeline systems, water jacket furnace, sedimentation tank and...
How to replace the shower room pulley replacement shower room pulley step
Shower wheel pulley is easy to cause certain damage due to long-term contact with water. The shower wheel pulley is broken. We do not have to rush to call the maintenance company. We must know how to replace the shower room pulley with our own strength. Then, how to replace the shower room? What about the pulley ? Follow the footsteps of Xiao Bian to learn how to change the shower room pulleys yourself and quickly. How to replace the shower room pulley replacement shower room pulley step...
The difference between single-wheel glass door pulley and two-wheel glass door pulley
Ningbo Marshine Power Technology Co., Ltd. is a large-scale design, production and sales of frameless stainless steel glass sliding door fittings, glass sliding door fittings, shower accessories, glass door handles, handle locks, glass connectors and other decorative hardware products. enterprise. A series of products are mainly 01A stainless steel glass sliding door pulley, 01A-C stainless steel glass sliding door pulley and 02A stainless steel glass sliding door pulley. The difference between...
New type of electro-hydraulic servo tensioner
With the rapid development of science and technology and the popularization of automation technology, customers are increasingly demanding materials testing machines, especially in terms of test accuracy, real-time display, and data processing. This means that our manufacturers must promptly upgrade the test machines that cannot keep pace with automation, so that they can demonstrate the most powerful functions in this high-tech era. The disadvantages of the original electro-hydraulic servo...
Super-thin hydraulic jack operating points and internal cushioning devices
As a user in the actual manipulation of ultra-thin hydraulic jack, which pivot point to pay attention? Today, Xiao Bian collects reorganization analysis for everyone. Pay attention to these pivot points so that you can use hydraulic jacks more handy. 1. Accurately place hydraulic jacks and electric hydraulic pumps, connect the electric hydraulic pump circuit, pay attention to the point: Do not connect the wrong motor circuit. 2. The hydraulic pump must be filled with hydraulic oil. The fuel...
HydraulicHand Pump
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Mooring wire rope
1) Dia:2-200mm 2)TS:1570-1960MP 3)Surface:Gal,Un-gal,stainless steel,PVC coated 4)Standard:DIN,BS,JIS,ASTM,API,ISO,GB
Wire Rope Design Requirements for Electric Hoist
1. Wire ropes for electric hoists should use wire contact wire ropes preferentially. Its structure type should conform to the rope 18×7 and rope 6×37 in GB/T8918, and its nominal tensile strength should be no less than 1570 MPa. 2. The wire rope should be arranged in order on the reel. 3. When the load is supported by multiple wire ropes, a pulley device that balances the force of each wire rope should be provided. 4. When the hook is at the lowest point of the working position, the safety ring...
Hydraulic explosion-proof hoist and hoist winch safety requirements
This standard is based on the "Coal Mine Safety Regulations", the State's relevant standards for mechanical safety and mine machinery, electrical and hydraulic products standards, and on the basis of on-site hazard analysis, for the first time to develop safety standards for hydraulic explosion-proof hoist and hoist winch products. Design, manufacture, and use impose mandatory safety requirements. This standard is proposed and managed by the National Mining Machinery Standardization Technical...
The disadvantages of hydraulic jack transmission
(1) Oil leakage and other factors in the hydraulic jack system affect the smoothness and correctness of the movement, making the hydraulic jack transmission unable to guarantee Gear ratio. (2) The hydraulic jack drive is sensitive to the change of the oil temperature. When the temperature changes, the viscosity of the liquid changes, causing the movement characteristics to change. The stability of the work is affected, so it is not appropriate to work under extreme environmental conditions. (3)...
Separate Hydraulic Jack Advantages Separate Hydraulic Jack Notes
Do you know separate hydraulic jacks? Let us take a look at the advantages and precautions of the separate hydraulic jack. I believe we will have a completely new understanding of the separate hydraulic jack. Basic working principle Designers used the Pascal principle when designing separate hydraulic jacks, so that separate hydraulic jacks can work through pressure gaps when working. Because when all parts of the liquid are in a pressure-consistent situation, if a certain pressure is exerted...
Cable slide block composition and its classification
The cable slide pulley series is a conductive form for the power supply of the crane trolley. It is composed of a walking wheel, a bracket and a pallet. The flexible cable is fixed on the pallet and the traction frame is synchronized with the cable pulley to achieve the power supply purpose of the cable. Cable pulleys are divided into middle load type, heavy load type, and light load type. Therefore, three kinds of driving wheels are ¢86, ¢73, and ¢55. The carrying capacity is ≤50-150kg. Each...
Stainless steel wire rope specifications
7*1,6*12,7*7,7*19,17*39, etc., stainless steel wire, stainless steel bar, stainless steel pipe, stainless steel plate are more expensive than the same material. The most expensive is 7*7 shares. Chemistry Component % C: ≤ 0.07 Si : ≤ 1.0 Mn : ≤ 2.0 Cr : 17.0 to 19.0 Ni : 8.0 to 11.0 Mo : Cu : Ti : S : ≤ 0.03 P : ≤ 0.035 Physical property yield strength (N/mm2) ≥ 205 Pull strength ≥ 520 Elongation (%) ≥ 40 Hardness HB ≤ 187 HRB ≤ 90 HV ≤ 200 Density 7.93 g·cm-3 Specific heat c (20 ° C) 0.502 J ·...
The difference between high-speed punch and ordinary punch
The difference between high-speed punch and ordinary punch: Scope of application: Ordinary punching machine, suitable for forming, blanking, punching, bending and other cold stamping processes, widely used in electronic components, instrumentation, toys, automobiles, tractors and other industries. High-speed punching machine is widely used in the stamping of small precision parts such as precision electronics, communication, computers, household appliances, auto parts, motor stators and rotors....
What is the difference between lever hoist and chain hoist?
The principle of labor saving of the hand chain hoist and the lever hoist is the same as that of the differential pulley; the difference is that the chain hoist is driven by a hand zipper strip, which is mostly used for vertically lifting heavy objects; the lever hoist is carried out by means of a moving handle. Drive, mostly used to move heavy objects horizontally. The principle of the hand chain hoist is: the hand-drawn chain drives the active pinion to rotate, the pinion drives the large...
Hydraulic jack additive summary in hydraulic oil
The medium used by jacks is hydraulic oil, so hydraulic oil is very important for hydraulic jacks. And because there are several kinds of additive in the oil, the following details are introduced: Hydraulic oil additives in the jack are used to improve the properties or properties of the base oil to meet the various requirements of the working medium in the application. Commonly used additives for hydraulic oils are as follows: 1. Viscosity enhancer can increase viscosity and viscosity index of...
Hoist wire rope elasticity lower scrap standards
Wire rope electric hoist wire rope to some of the very minor damage is required when all the strands in a good balance of stress, the general use of the usual test methods may not be clear. However, this damage will cause the strength of the wire rope to be greatly reduced. Therefore, any minor internal damage found should be examined and identified. Once it is determined to be damaged, the wire rope should be scrapped. Reduced elasticity of wire rope: In some cases (usually associated with the...
pulley assembly and installation precautions
1. Gasoline must be used for the last cleaning before assembly to ensure that all components are clean and dry to ensure that the mating surfaces are tight and free of oil and have sufficient friction. 2. Before installing the assembly, the hexagon socket bolts should be cleaned with gasoline and dried. Do not paint the bolts or screw holes with grease or grease to ensure that the bolts have sufficient friction self-locking ability. 3. When the three hexagon socket bolts are to be installed in...
How to use the torque wrench of Marshine The classification of the torque wrench and the torque presets
As we all know, the torque wrench is a special tool for tightly controlling the tightening torque of bolts and nuts, which consists of a controller and a tightening shaft. Dongri torque wrench is a type of torque wrench manufactured by Marshine. It is widely used in today's machinery manufacturing field. Torque wrench is an indispensable tool in measuring screw torque, breaking twisting force and fastening screws. . The following Steve lee will introduce the use of Dongri torque wrenches,...
Stainless steel wire rope concept and classification
Types and uses: There are many classification methods for stainless steel wire ropes. Different countries have different classification methods. The common ones are classified according to steel rope structure, direction, surface, use and strength. The variety of varieties reflects the diversity of uses. Classification of stainless steel wire rope a. According to the contact state of the adjacent layer of steel wire in the strand, the stainless steel wire rope can be divided into three basic...
Wheel pulley made of polyurethane elastic impact on the joint
Roller skating, also known as roller skating and roller skating, is a sport in which special shoes with rollers are used to glide on a hard court. Modern roller skating is divided into five categories: extreme roller skating, speed roller skating, pattern roller skating, leisure roller skating and freestyle roller skating. As a very popular sport, roller skating is not only the entertainment and excitement of extreme sports, but also a very important reason is that roller skating has a strong...
Crimping tool model
There are many types of crimping tools, such as small crimping pliers, ratcheting crimping pliers, aviation terminal crimping pliers, large YO terminal crimping pliers, 7.5′ European crimping pliers, 8′ ratchet Crimping pliers model, 9' ratchet crimping pliers model, AP series new generation of labor-saving crimping pliers models, FSE series ratcheting crimping pliers (European type) models, FSC series ultra-saving pliers models, FSB series mini Crimping pliers model, FSA series super-saving...
