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introduction：one、The necessity of frequency conversion transformation of rotary shaft flow fan used in mine For a long time，Coal mines are affected by complex production conditions and environment，In the selection of mining equipment, the model with relatively large power is used，Full motor operation，The phenomenon of large horse-drawn carts is very common，Energy consumption is very serious。How to take technological progress and technological innovation as the guide，Reduce the production cost of enterprises，Improving labor productivity is an urgent task for coal production enterprises。 The main ventilator is one of the four main equipments in coal mine，Ventilate as mine master，It every day24The hours go on and on，Its the whole mine“Breath
2015-03-24 Reading quantity 2929
introduction：Working principle： Vacuum drying is the drying of dry materials under vacuum conditions by heating。It uses a vacuum pump to pump air and moisture to form a vacuum state in the working room，The drying speed is accelerated。 Scope of application： Suitable for medicine、Chemical engineering、food、corpuscle、Drying of heat-sensitive materials in Chinese medicine and other industries。 peculiarity： It can obtain higher drying rate at lower temperature，Full utilization of heat； Low temperature drying or drying of heat-sensitive materials； Can dry materials containing solvents and need to recover solvents； It can be disinfected before drying，Anything impure during the drying process
2015-03-24 Reading quantity 2803
introduction：INAbearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Use material rust treatment and protection measures In order to make the deep groove ball bearing parts after quenching and tempering surface residual large compressive stress，An atmosphere of carburizing or nitriding can be used during quenching heating，Perform short periods of surface carburizing or nitriding。Austenite actually contains carbon when this steel is heated during quenching
2015-03-24 Reading quantity 1575
introduction：1、Operation technique First, we need to check the surrounding situation。Rotating operation time，Against surrounding obstacles、You have to know the terrain，Safe operation；Operational hour，Check the front and rear direction of the track，Avoid tipping or striking；Try not to face the final drive in the direction of excavation，Otherwise, it is easy to damage the walking motor or hose；Operational hour，Make sure the left and right tracks are in full contact with the ground，Improve the dynamic stability of the whole machine。 2、Effective mining method When the bucket cylinder and connecting rod、The bucket cylinder and bucket rod are mutually formed90Degree hour，Maximum digging power；Bucket teeth and ground hold30Degree angular hour，Optimum digging power
2015-03-24 Reading quantity 1496
introduction：abrasive grinding Heavy grinding abrasive abrasive,abrasive absence absent，absence accesssory attachments accommodate Adapt to accordingly therefore,consequently,accordingly accuracy precision,accuracy actuate Put into operation(machine),actuate adequate plenty adhesive Binding agent adjacent adjacent adopt adopt a
2015-03-24 Reading quantity 2952
introduction：Abstract：This article from the optimization component design、Smelting、Deterioration treatment、Process control measures such as casting and heat treatment are started，The production process of high chromium troostite mill as cast was introduced，The optimum matching of each process parameter was achieved through production test，It provides a strong theoretical support for producing high quality cast high chromium troostite mill ball。 keyword：Optimization process control of high chromium troostite mill ball Chromium greater than11%The chromium series of white cast iron becomes high chromium cast iron，martensiteCr15High chromium cast iron is a typical wear-resistant cast iron widely used at home and abroad，Used to make grinding balls、The liner
2015-03-24 Reading quantity 2929
introduction： The shaft breaking problem of reducer output publisher：admin Release time：2009-10-19 read：1366time Reducer common installation problems--Reducer output is too small caused by broken shaft problem Except because the output end of the reducer assembly concentricity is not good，And cause the reducer to break the shaft outside，If the output shaft of the reducer is broken，There are several reasons for this。 First of all，Wrong choice
2015-03-24 Reading quantity 2947
introduction：1、Electric erosion IKOUnidirectional bearing[bearing:bearing（“Bearing”，Japanese person“Axial receptor”）It is a part that holds and reduces the friction coefficient of load during mechanical transmission。Can also be said，When other parts move relative to each other on the shaft，A device used to reduce the coefficient of friction during power transmission and to keep the center of the shaft fixed。]Electrical erosion is caused by electrical leakage from a motor or appliance，Electric sparks are generated between bearing friction surfaces，Cause spot marks on the friction surface，The characteristic is that the damage occurs repeatedly on the hard journal surface； 2、Fluid erosion IKOUnidirectional shaft
2015-03-24 Reading quantity 1474
introduction：Solid Edge® The first17The company continues to deliver innovative new ideas to customers in various markets，Help them achieve“Management based design（Design with Insight）”，To achieve lower costs，Get products to market faster，The purpose of saving time and making the product look more attractive。The end result is，UseSolid EdgeOur customers have increased their sales in their respective markets。 Companies with design requirements have taken advantage of itSolid EdgeSome innovative technology，
2015-03-24 Reading quantity 2896
introduction：After loading and adjusting，Can automatically complete the work cycle according to certain procedures，A lathe that repeatedly processes a batch of workpieces。Lathes that can automatically complete the work cycle except for loading and unloading parts are called semi-automatic lathes。Automatic lathe can reduce the manual labor intensity of workers，Reduce auxiliary time，Multiple machine tools can be supervised by one person，Higher productivity。 By number of spindle，Automatic lathes are divided into single-axis and multi-axis two categories。The former mainly has a uniaxial longitudinal cutting、Single axis turret and single axis crosscut3Species type;The latter mainly has two kinds of sequential operation and parallel operation，And according to the configuration of the spindle there are vertical and horizontal points。The machine tool generally adopts CAM and block automatic control
2015-03-24 Reading quantity 2794
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