NJS's high-power hydraulic pressure torque wrench ( hydraulic pressure twisting force wrench )

One , the produce is briefly introduced
Continuously the lifing of inflexible manufacturing industry technique level in the wake of our country , in the interest of guarrantees the produce quality , the high intensity the adoping bolt that much installation and facilities shall be wide-ranging increasingly , and the taut firm beforehand taut moment to the bolt proposes the rigorous demand , and especially stands the heavy load lotus to reach to pound intensely the heave-duty inflexible installation of vibration more significant , and for the sake of the raise whorl connections quality and dependability , the hydraulic pressure torque wrench is succeeded in the development to the well-developed technique of synthetical application home and abroad of this mill scientific and technical personnel to beforehand taut moment that the accurately control high intensity bolt connections , yet assists you to resolve this hard nut to crack .
The hydraulic pressure torque wrench is assists you to pack and pulls down bolt and nut , the ideal means of taut torque is screwed in control that moreover be able to be comparatively more exact , it widely is applicable to professions such as metallurgy , electric power , chemical industry , machine and communication and so on inflexible installation and facilities , that the significant bolt connections fixs reaching the disassembling maintenance , the capacity conveniently promptly completees you packs puling down the bolt mission , may effectively gurrantee the torque value that you requireed moreover .

Two , composition and the work rule
The hydraulic pressure torque wrench ( catching sight of the picture 1 ) consists of that the hand stirs the high-pressure pump with brings click pulley style hydraulic pressure torque wrench two sections . Controing the laddle that the hand stird the high-pressure pump , the hydraulic pressure vat comes into being thrust , and after crank system generation moment , spuing on the nut turns an angle , thereby cause the torque transmit to transmit on the inside six jiaos of muffs of the escapement brining connectioing to the bolt , according to requires beforehand the taut bolt .
The hand stirs that the high-pressure pump consists of controing the laddle , high-pressure pump , commutation valve , fuel tank and petroleum pipelines that pressure gange and girdle join speedily and so on . Brings the click pulley style hydraulic pressure wrench to consist of the high-handed oil rim , hydraulic oil vat , crank and anti-s force staff , escapement and muff and so on and the former the series driving force source components , the latter act as the torque executive body .

Picture one

Three , the main distinguishing feature
The hydraulic pressure torque wrench havees the below distinguishing feature :
( 1 ) by means of the systematic pressure gange of hydraulic pressure can accurately and dependable control beforehand taut moment .
( 2 ) lift the whorl connections the steel degree , and cuts down the danger that bolt fatigue is crack .
( 3 ) gurrantee widely adoping the dependability that the high intensity bolt connections that eases weight with the interest with practise thrift the room .
( the 4 ) use limit is vast and it is powerful to adapt to , usable to the bolt and interior angle screw taut beforehand .
( 5 ) manipulating simply , it is convenient to employ , economic security .
The four , produce type reaches the bolt being applicable and the nut limit
1 type in the table , parameter and sphere of application

Five , the operation means
1 , on the basis of beforehand inside six jiaos of muffs are selected andd provide to the taut nut dimensions .
2 , the demand in accordance the nut need to screw tightly either loosening compose the click pulley ( employ the right side when screwing the taut nut to the click pulley , employ left wingly to the click pulley when loosening the nut ) .
The 3 , grip brings that the high pressure that joins the speedily and low pressure gum tube sticks in joint part with the commutation valve of wrench ( high-handed 1/4 " , the low pressure in the interest of 3/8 " ) , and the queen reaching the designated position is sticked in in the demand , and incites to action that the outer garment that joins speedily turns an angle , and with locking .
4 , the force staff revolting depend to be living on bearing suit either else stand anti- force space relevant inside six jiaos .
5 , wrench connecting lever street corner size ought to be dominateeed to be living revolts inner place the force staff demarcation angle limit .
6 , strike when being getting near , and ought to circle the air bleeder one week towards the left , and unfold the air bleeder , and closes down such afterwards dealing with the air to place the most atthe furthest end ofly .
7 , hand stirs that the pump strikes when being getting near , and according to the hydraulic pressure vat piston rod extending and shrinks turns the commutation valve laddle , and serveing as when the laddle is living the left wing side place , the piston rod piece is extended , on the contrary in the interest of shrinking , but the pressure is fragmentaryly when being living the intermediate place .
In immediate future 8 , strike when being getting near , and may obtain the torque value by means of watcing the pressure gange reading value ( MPa ) . Pressure value ( MPa ) that is living in the hour of comeing out the bureau torque value requireing ( N.m ) on the basis of 2 formula calculation giving out in the table in adance .
9 , beforehand taut end queen places the commutation valve laddle to the middle place , and causes such pressure go back fragmentaryly .
So in immediate future 10 , unload Gao low pressure gum Guan Shi that the lower bound joins speedily , and ought to first of all incite to action that the outer garment that joins speedily circles an angle , and causes such gap alignment spacing annul pushing forward , and may pull up out the connector .

Six , pay attention to the matter
1 , joins gum Guan Ying is in the free state , and must not wind being smaller than 500mm's ring into the diameter .
2 , hydraulic pressure wrench every joint being living is annul shaft and maneuver place and ought to be apply grease , and decreases thanks to the fact that the rub creates the torque loss .
3 , when doing the hydraulic pressure systematically must not join really in the way of the hand .
4 , unloads joins queen down speedily , that such joins to show partly employ the plastic material to top the shade residing .
5 , work oil adopts ordinary hydraulic oil , and such shop sign is in the interest of YA-N32G either YA-N45G . ( balanceing 20#'s machine oil ) . Dos inner place the system oil each year have to replace washes the filter .

Seven , the hydraulic pressure torque wrench is usied
1 , connection the wrench type that the dimensions limit was select the use that you require on the basis of the whorl , and must not employ small-size bugler's taut standard great admittedly of the wrench bolt .
2 , oil vat pressure must not overtake the largesttest oil pressure 63MPa so as not to injuring the hydraulic pressure system .
3 , the different distinct types wrenchs are reached in accordance the table 2 , relevant formula calculation your what needs pressure ( MPa ) either torque ( N.m ) .
Example 1: Emploing NJS-I's mould wrench , taut firm M30's bolt , the taut torque is in the interest of 1004N.m's look-up 2 on the basis of formula P=M1/158=1004/158 6.4MPa beforehand . The pressure gange indicator points out when 6.4MPa , in immediate future such torque in the interest of 1004N.m .
Example 2: Emploing NJS-II's mould wrench , taut firm M42's bolt , the taut torque is in the interest of 2806N.m's look-up 2 on the basis of formula P=M2/200=2806/200 14MPa beforehand . The pressure gange indicator points out when 14MPa , in immediate future such torque in the interest of 2806N.m .
Example 3: Emploing NJS-III's mould wrench , taut firm M64's bolt , the taut torque is in the interest of 10147N.m's look-up 2 on the basis of formula P=M3/236=10147/236 43MPa beforehand . The pressure gange indicator points out when 43MPa , in immediate future such torque in the interest of 10147N.m .
Example 4: Emploing NJS-IV's mould wrench , taut firm M80's bolt , the taut torque is in the interest of 19626N.m's look-up 2 on the basis of formula P=M4/657=19626/657 29.9MPa beforehand . The pressure gange indicator points out when 29.9MPa , in immediate future such torque in the interest of 19626N.m .
Example 5: Emploing NJS-V's mould wrench , taut firm M100's bolt , the taut torque is in the interest of 39960N.m's look-up 2 on the basis of formula P=M4/657=39960/657 60.8MPa beforehand . The pressure gange indicator points out when 60.8MPa , in immediate future such torque in the interest of 39960N.m .
On the contrary like known pressure ( MPa ) on the basis of the table 2 what is give relevant formula too may be requestted out the relevant torque ( N.m )

Table 2 hydraulic pressure torque wrench oil vats together with homologous torque along with pressure and torque calculation formula

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