introduction:doulun duiquliaoji Bucket wheel stacker and reclaimer bucket wheel staker-reclaimer Use bucket-wheel to take material continuously,A rail-mounted loading and unloading machine that continuously piles material with an on-board belt conveyor。It is a bulk material(Bulk material)Special machinery in the storage yard,It is evolved on the basis of the bucket wheel excavator,Can be unloaded with car(The ship)machine、Belt conveyor、ship(car)Unit into storage yard transportation mechanized system,The production capacity can be reached per hour1More than ten thousand tons。The operation of bucket-wheel stacker and reclaimer has strong regularity,Easy automation
2015-04-12 Reading quantity 2876
introduction:Overrunning clutch Use the tooth engagement﹑Ratchet wheel -The engagement or roller of a pawl﹑A clutch that transmits movement or torque in one direction。A roller overrunning clutch is commonly used(See picture Roller overrunning clutch )﹐It consists of an inner ring﹑roller﹑Outer ring﹑Spring and top pin, etc。Generally, the inner ring is an active part﹐The outer ring is a follower。When the inner ring is turned counterclockwise﹐The roller is wedged tight to turn the outer ring﹐Clutch engagement﹔When the inner ring rotates clockwise﹐Roll back into the wide slot﹐The outer ring does not move﹐Clutch disengagement。If the outer ring is driven by another system and the inner ring rotates in the same direction﹐When the outer ring speed is lower than the inner ring speed﹐
2015-04-12 Reading quantity 2782
introduction:qianyinlian Drag chain drag chain An important component used in certain conveyors to transmit traction and movement。The traction chain is fitted with a working member(strickle、lath、hopper、Slide frame and steps, etc),Used to transport material or personnel on a conveyor line。The pitch of the traction chain is generally large,Low operating speed。Traction chain can be divided into ring type according to different structure、slice、Detachable and special traction chains。 The ring traction chain is made of welded circular steel chain rings,There is usually a special open link every few standard links(
2015-04-12 Reading quantity 2772
introduction:Practice has proved that the life of the reducer using mechanical oil is shorter than that using medium load industrial gear oil reducer1~2About times,In addition, the use of obsolete low-grade oil is a waste of resources,It can be seen that,The oil selection of the reducer is very important,As things stand,Should be used uniformlyGB5903—86The specified sulfur and phosphorus type medium load industrial gear oil is better,The oil is basically the same as the internationally renowned high-quality gear oil,Under compression、anti-emulsification、Viscosity-temperature characteristic、Oxidation resistance and other properties fully meet the needs of metallurgical enterprises equipment reducer use,For low-speed and heavy-duty reducers, enterprises with conditions can also be appropriately added
2015-04-12 Reading quantity 2973
introduction:yehuan yasuoji Liquid ring compressor liquid ring compressor Rotation of the impeller in the cylinder,The volume of the crescent cavity formed by the liquid ring attached to the inner wall of the cylinder and the impeller changes,To compress and transport gas to the rotary compressor liquid ring compressor exhaust pressure is lower0.2Mpa is called liquid ring blower。 figure[Liquid ring compressor schematic diagram]The principle of liquid ring compressor,The impeller is eccentrically arranged in the cylinder,And introduce a certain amount of water or other liquid into the cylinder。impeller(rotor)When rotating and reaching a certain speed,
2015-04-12 Reading quantity 2808
introduction: Laser heated surface quenching is a high energy laser beam scanning the workpiece surface,The workpiece surface is quickly heated to the critical point of the steel,Self-cooling quenching is realized by the heat conduction of the workpiece matrix,Achieve surface phase change hardening。 Laser heating surface quenching heating speed is extremely fast(105~106℃/s),So the superheat is high,Large driving force of phase transformation,The number of Austenitic nuclei increased dramatically,Diffusion homogenization is too late to proceed,The inhomogeneity of carbon and alloy concentration in Austenite increased,The microscopic regions with similar carbon content in austenite become smaller,Follow the quick cold(104℃/s)Mean no
2015-04-12 Reading quantity 1427
introduction:82:What is air cooling? a:After the flame is partially heated,The workpiece cools naturally in the air。 83:What is water cooling? a:The heated part of the metal is forced to cool with water,Let it cool quickly,Reduce heat transfer to the back,Widening the temperature difference between front and back,And improve the molding effect。 84:What are the characteristics of explosive forming? a:The mold structure can be simplified;Can be processed in complex shapes,Rigid molds are difficult to process hollow parts;Low resilience,High precision,Of good quality;The processing speed is fast;No stamping equipment is required。 85:What is a corner joint?
2015-04-12 Reading quantity 2855
introduction:tangxiao boring boring The prefabricated hole on the workpiece is enlarged to a certain size with a rotating single-edge boring tool,To achieve the required precision and surface roughness of the cutting processing。Boring is generally done in a boring machine、Machining centers and combined machine tools are carried out,Mainly used for processing boxes、Cylindrical holes in workpieces such as supports and frames(See picture[Diagram for boring cylindrical holes])、Threaded hole、Hole inside groove and end face;When using special accessories,The inner and outer spheres can also be processed、taper。The boring accuracy of steel materials is generally up toIT9~7,Surface roughness isR2.5~0.16micron。
2015-04-12 Reading quantity 2722
introduction: Under repair assemblyNSKbearing[NSKbearing:Seiko Co., LTD(NSK LTD.)Be established in1916years,It is the first manufacturer to design and produce bearings in Japan。NSKThe function of the bearing fit is to makeNSKThe stationary ring and rotating ring of the bearing are respectively the stationary part of the installation part(Usually a bearing seat)And rotating part(Usually an axis)Solidify together,Thus, the basic tasks of transferring the load in the rotating state and defining the position of the moving system relative to the stationary system are realized。]when,First record the bearing appearance,Confirm the residual amount of smoothing agent,After sampling,Bearing cleaning。Cleaning agent wide
2015-04-12 Reading quantity 1432
introduction: What are the control methods of electromagnetic clutch Electromagnetic clutch、The basic control circuit of the brake is DC power supply,simpleon/offInitial brake loop system,Then use the button start control relay to make its contact open or closed to control the loop。It can also be used with the control mode of the high speed control loop and the control mode of the discharge loop,Due to the use of different characteristics,Electromagnetic clutch、The brake circuit is also controlled differently。The above is a simple introduction to the electromagnetic clutch、Circuit control of brake
2015-04-12 Reading quantity 2863