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<table border="0" cellpadding="3" cellspacing="1" width="100%" class="forumline"> <tr> <th class="thCornerL" width="22%" height="26">Autor</th> <th class="thCornerR">Wiadomość</th> </tr> <tr> <td width="22%" align="left" valign="top" class="row1"><span class="name"><a name=""></a><b>defgf24uw</b></span></td> <td class="row1" height="28" valign="top"><table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><img src="http://picsrv.fora.pl/subSilver/images/icon_minipost.gif" width="12" height="9" alt="Post" title="Post" border="0" /><span class="postdetails">Wysłany: Pią 10:49, 12 Lis 2010<span class="gen"> </span> Temat postu: ghd stijltang Rotating power head hole drill Calcu</span></td> </tr> <tr> <td colspan="2"><hr /></td> </tr> <tr> <td colspan="2"><span class="postbody">Rotating power head hole drill Calculation and Analysis <br /> <br /> <br />1.5.2 Analysis of output characteristics of rotary power head commonly used in the present prime mover rotation power head has two electric motors and wind the motor, motor cover moving performance, energy saving, low noise, should be preferred; wind motor safety, and a good starting performance, for fat blasting and other specific occasions. Step Motor 2.1 AC cock body hidden speed asynchronous output characteristics curve of the mechanical properties of herpes motivated by the stability and instability in operation phase of operation of phase A BC composition. The characteristics of hard segment AB, that moment when the external resistance increases or decreases, the decrease or increase the motor speed changes little, which makes the process of drilling rigs in operation, can change the speed remained stable, and always be better performance venues and operations to match the rock. However, only one rated speed electric ridiculed,<a href="http://www.ghdstijltang.net" target="_blank" class="postlink">ghd stijltang</a>, only with food to match a characteristic of the rock, the starting torque M is small, easy to burn ring motor, by water moisture may damage insulation and should be overcome. 2.2 The deceleration of the output characteristics of the wind motor to the current broad application of the saddle the wind vane motor, for example, as shown in curve such as 3, M changes in a straight line curve is similar to the soft curves, with the change of external torque, speed and output power variation large, normal operation, the constant speed and rated torque M is ¨ big speed and big torque taken half the maximum output power. Tin rig reasonable speed and torque by external conditions determine the nature of stone, there are certain laws, and turned back by the wind motor output characteristic curve itself bound, soft features, due to wind and horse prince Yu Wu election leaves 3 This curve, wind deceleration of the output characteristics of the motor is difficult to match with the drilling operation,<a href="http://www.ghddeutschlands.com" target="_blank" class="postlink">ghd deutschland</a>, which is its limitations. 4 Zhang Haitao hole drill pigsty transfer parameter calculation and characteristics of power head off, but sub-Vane motor starting torque, which can load start, and the rotor inertia, and smaller leaves, soon after starting to full speed,<a href="http://www.uggbootssaler.org" target="_blank" class="postlink">ugg boots sale</a>, positive and negative exchange easy, unloading and processing of drill pipe sticking benefit can automatically overload protection, explosion-proof, good, easy maintenance,<a href="http://www.uggsbootsireland.net" target="_blank" class="postlink">ugg boots ireland</a>, which is its advantage. 3. The main requirements of the gear box gear box being subjected to loads as large, open and close frequently, such as poor working conditions of two-way operation, therefore, in addition to meet the conditions of strength and stiffness and fatigue life enough, the other performance requirements as well; (1) load capacity, smooth transmission; (2) waterproof and dustproof, sealing performance} (3) compact, small size; (4) easy to install and maintain. 4 Conclusion The above analysis, obtained rotating power head submersible drilling rig the basic requirements and related calculations, based on the design and selection of the specific circumstances of different performance parameters of the power machine and the gear box to ensure that the hole drilling rigs and reasonable efficiency and service life. PARAMETERCALCULAT10NANDCHARACTERANALYSIS0FPOWERROTARYHEADFORDTHRIGZhangHa ~ ao (ChangehaInstituteofMiffingResearch) ABSTRACTCurrently, theDTHrigsLlkqegenerallyapercussionrotarypenetrationsys-temtogeneratetherotaingtorquethatproducesashearingactionforbreakingrock ・ Theauthoranalyse ~ thecompositionofrotaryunitofDTHrig. thedrivecharacteristicsoftwopowerunitsandthebasicrequirementsforgearcase, andprovidesthetheorybasisfortherelativeparameterdesignandselectionofDTHrig. KEYWORDSDTHrig, Powerrotaryhead,<a href="http://www.uggsbotas.com" target="_blank" class="postlink">ugg botas</a>, Parametercalculation, Characteristics, Analysis / technology and management in this area provide a comprehensive and systematic reference since the publication album stream is left to ask who the small number of those who need to come forward with the publication to contact the share of each price of land per book (including postage). ,, Address: Lushan South Road, Changsha, Hunan, 236, \ More articles related to topics： <br /> <br /> <br /> <a href="http://www.belkdepartx.fora.pl/belk-department-store,1/ghd-haargl-228-tter-medgaz-challenge-has-begun-_58,942.html#952" target="_blank" class="postlink">ghd haarglätter MedGaz challenge has begun _58</a> <br /> <br /> <a href="http://www.zring.fora.pl/forum-testowe,1/ghd-styler-vacuum-belt-filter-press-_696,1017.html#1031" target="_blank" class="postlink">ghd styler Vacuum Belt Filter Press _696</a> <br /> <br /> <a href="http://www.warezy.biz/viewtopic.php?p=280849#280849" target="_blank" class="postlink">ugg stiefel A heuristic algorithm for the problem</a></span></td> </tr> </table></td> </tr> <tr> <td colspan="2" height="1" class="spaceRow"><img src="http://picsrv.fora.pl/subSilver/images/spacer.gif" alt="" width="1" height="1" /></td> </tr> </table>
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