| 1. | A new method of pre - tightening for king diameter coupling bolt
大直径联接螺栓预紧的一种新方法 |
| 2. | Installation of flange connecting valve is on diagram . lock down the connecting bolt after add sealing washer
安装如示意图，加密封垫后均匀锁紧联接螺栓。 |
| 3. | The transmission part cannot be hoisted and damaged . add sealed shim between the two flanges and then lock down the bolt equably
安装时传动部分不允许作吊装用，并严禁损伤。两法兰连接中间需加密封垫片，然后均匀拧紧联接螺栓。 |
| 4. | Pay attention to the flow direction of medium showed on the body . installatio of flange connecting valve is on diagram . lock down the connecting bolt after add sealing washer
安装时请注意阀体上标注（箭头）的介质流向，安装如示意图，加密封垫后均匀锁紧联接螺栓。 |
| 5. | Pay attention to the flow direction of medium showed on the body . installation of flange connecting valve is on diagram . lock down the connecting bolt after add sealing washer
安装时请注意阀体上标注（箭头）的介质流向，安装如示意图，加密封垫后均匀锁紧联接螺栓。 |
| 6. | In this paper the author describes a way of determining the residual pre - tightening force after adding elastic elements to the connecting bolt at the flange on ball mill ' s shell and therefore a formula is induced
阐迷了球磨机筒体法兰联接螺栓增加弹性元件后其剩余预紧力的确定方法，并导出了相应的计算公式。 |
| 7. | According to the analysis of the table lookup , the graph method and the simulating formula method of selecting bolt diameter without controlling pretightening force under dead load were presented in this paper
摘要通过对查表法资料进行分析，提出了静载时选择不控制预紧力的紧螺栓联接螺栓直径的图线法和模拟公式法。 |
| 8. | In order to solve it radically , making power assembly of bj1036e2f1 light truck the research object and through dynamic simulation analysis of power assembly , this thesis obtains the distribution rules of forces of the bolts linking three shells mentioned above and the relation between forces of the bolts and rotate speed of engine . after finite element mode analysis of these three shells , inherent frequency and vibration model of shell of power assembly are gained , and thus its dynamic character is realized . based on computer simulation analysis , experimental model of power assembly is acquired by vibration test and strength test of shell of power assembly , and the relation of forces of the shell and rotate speed of engine and imbalanced mass of rotate components is studied
为了从根本上解决该问题，本论文以bj1036e2f1轻卡动力总成为研究对象，通过动力总成的动力学仿真分析，找出了三壳之间联接螺栓受力的分布规律和螺栓受力与发动机转速的关系；通过三壳的有限元模态分析，得到了动力总成壳体的固有频率与振型，从而了解了动力总成壳体的动态特性；在计算机仿真分析的基础上，通过动力总成壳体的振动测试和强度测试，得出了动力总成的试验模态，并研究了壳体受力与发动机转速和旋转部件不平衡质量的关系。 |
| 9. | Using the optimum calculating method , some important technical parameters could be determined , that is , optimum supporting force , allowable deformation of rock mass , cross section area of u - shape set , pre - tight force and diameter of the bolt as well as torque to provide optimum supporting force
用这一计算方法能求出岩石恒阻支护的重要技术参数，即最优（小）恒阻支护力、围岩最大允许变形量、恒阻u型钢支架的截面积、联接螺栓的预紧力和直径及最优支护力的拧紧力矩。 |
| 10. | The paper expounds how to find out the potential safe problems and unobvious defects , such as beyond - limit deflection in fixed girders for gantry bucket wheel stacker / reclaimer , by means of completely checking fixed girders , movable beams , geometric shapes of stiff and flexible supporters , metal thickness and welding and how to solve the safe problems and remove the defects
摘要通过对门式斗轮堆取料机固定梁、活动梁、刚性支腿、挠性支腿的几何形状、金属厚度、焊缝状况、联接螺栓状况进行全面检测，发现门式斗轮堆取料机固定梁存在下挠超标的安全隐患和其他非明显缺陷，从而对堆取料机的安全状况有了全面的掌握，并根据检测结论对固定梁下挠缺陷及时进行校正消缺，避免发生设备垮塌事故，保证了堆取料机的安全稳定运行。 |
