英语翻译两种对接装置的受力分析装有连接机构的两个模块连接在一起时,受力情况最严重的部分也是两个对接的旋转臂.一个旋转臂上
英语翻译
两种对接装置的受力分析
装有连接机构的两个模块连接在一起时,受力情况最严重的部分也是两个对接的旋转臂.一个旋转臂上既有一个连接轴,又有一个连接孔,因此,我们对竖直连接的连接机构进行受力分析.图2.10、3.9所示为两连接机构单轴孔连接示意图.
图2.10所示分别为连接轴的销、滚珠和连接孔的受力分析图,图中只画出了一个滚珠的情况,销和连接孔也都只画出了与一个滚珠作用的部分,计算时给相应的力在此基础上乘以3就可以了.设模块的重力为,连接轴中心的销的倒角为,为一个滚珠施加给销的压力,为销施加给一个滚珠的压力,有：
（2-1）
为气缸对销施加的气压力,为一个滚珠所承受的支持力,为一个滚珠施加给连接孔内壁的压力的合力,为该合力与水平轴的夹角,为连接孔内壁施加给一个滚珠的压力的合力,显然,有：
（2-2）
由力学知识,得：
（2-3）
（2-4）
（2-5）
（2-6）
联立以上方程,可得：
,（） （2-7）
由此可见,当取实际中的最大值时,取最小值,这就是所需的最小的气缸压力.实际中是固定的,所以该模块所能承受的重量是有限的.当模块的重量增大时,也随着增大,但是实际中是有界的,所以需要的也将增大,同时连接孔内壁施加给滚珠的力也将增大,而由于不变,销施加给滚珠的压力不变,这样以来,滚珠的三力平衡就发生了变化,这意味着滚珠有可能沿着销的斜面被挤出,从而使得连接孔与连接轴的锁紧机制解锁,这样以来,两个模块就断开了连接.因此,当模块重量增大或者外界干扰使连接机构承受的力增大时,该连接的可靠性将会下降.
由力学知识,得：
（3-1）
（3-2）
（3-3）
（3-4）
（3-5）
（3-6）
联立以上方程,可得：
,（） （3-7）
注意到图3.10（a）、（b）与图2.9（a）、（b）是不同的,所以式（3-4）与（2-4）也是不同的,（3-4）表明对于新的连接机构,销施加给滚珠的压力与滚珠受到的支持力的矢量和才等于滚珠给连接孔内壁施加的压力,而式（2-4）则表明二者之矢量差等于压力,这就表明新连接机构把销施加给滚珠的压力也用于平衡重力了,而旧的连接机构则恰好是用来增大分离连接的重力,这就是新旧连接机构之间的差别.对于新连接机构,当模块的重量增大时,也随着增大,但是由于有和共同来平衡,所以连接的可靠性将比原来的机构要高.
两种对接装置的受力分析
装有连接机构的两个模块连接在一起时,受力情况最严重的部分也是两个对接的旋转臂.一个旋转臂上既有一个连接轴,又有一个连接孔,因此,我们对竖直连接的连接机构进行受力分析.图2.10、3.9所示为两连接机构单轴孔连接示意图.
图2.10所示分别为连接轴的销、滚珠和连接孔的受力分析图,图中只画出了一个滚珠的情况,销和连接孔也都只画出了与一个滚珠作用的部分,计算时给相应的力在此基础上乘以3就可以了.设模块的重力为,连接轴中心的销的倒角为,为一个滚珠施加给销的压力,为销施加给一个滚珠的压力,有：
（2-1）
为气缸对销施加的气压力,为一个滚珠所承受的支持力,为一个滚珠施加给连接孔内壁的压力的合力,为该合力与水平轴的夹角,为连接孔内壁施加给一个滚珠的压力的合力,显然,有：
（2-2）
由力学知识,得：
（2-3）
（2-4）
（2-5）
（2-6）
联立以上方程,可得：
,（） （2-7）
由此可见,当取实际中的最大值时,取最小值,这就是所需的最小的气缸压力.实际中是固定的,所以该模块所能承受的重量是有限的.当模块的重量增大时,也随着增大,但是实际中是有界的,所以需要的也将增大,同时连接孔内壁施加给滚珠的力也将增大,而由于不变,销施加给滚珠的压力不变,这样以来,滚珠的三力平衡就发生了变化,这意味着滚珠有可能沿着销的斜面被挤出,从而使得连接孔与连接轴的锁紧机制解锁,这样以来,两个模块就断开了连接.因此,当模块重量增大或者外界干扰使连接机构承受的力增大时,该连接的可靠性将会下降.
由力学知识,得：
（3-1）
（3-2）
（3-3）
（3-4）
（3-5）
（3-6）
联立以上方程,可得：
,（） （3-7）
注意到图3.10（a）、（b）与图2.9（a）、（b）是不同的,所以式（3-4）与（2-4）也是不同的,（3-4）表明对于新的连接机构,销施加给滚珠的压力与滚珠受到的支持力的矢量和才等于滚珠给连接孔内壁施加的压力,而式（2-4）则表明二者之矢量差等于压力,这就表明新连接机构把销施加给滚珠的压力也用于平衡重力了,而旧的连接机构则恰好是用来增大分离连接的重力,这就是新旧连接机构之间的差别.对于新连接机构,当模块的重量增大时,也随着增大,但是由于有和共同来平衡,所以连接的可靠性将比原来的机构要高.
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Two docking device stress analysis
The two modules connected institutions with together,stress the worst part is two docking rotating arm.A rotating arm as an axis,and have a connecting holes,therefore,we connect to the vertical stress analysis of mechanism of connection.Chart shown,3.9m 2.10 connection when connecting two single diagram.
As shown in figure 2.10 respectively,the axis connecting holes and the ball bearing,were only draw a ball,and connecting holes are only a part of the function with a ball,the calculation to the corresponding power based on the superior to 3.Set of modules for connecting shaft center of gravity,the sales of chamfering,as a ball,the pressure exerted to pin to pin a ball pressure imposed,are:
(2-1)
For the cylinder pressure gas pressure,the counter for a ball,which is a ball writing.i imposed connection of the inner pore pressure,combined with the horizontal axis Angle for connecting holes on wall,a ball pressure,apparently,the:
(2-2)
Knowledge of mechanics,too:
(2-3)
(2-4)
(2-5)
(2-6)
Simultaneous equations,can have more:
(2),(7) -
Thus,when taking the actual maximum and minimum value when,it is the smallest of the air pressure required.Practice is fixed,so this module can bear the weight is limited.When the weight of the module,also increases with increasing,but the reality is,so I need to increase,and connection of inner pore pressure to force will also increase the ball,but due to the constant pressure to the ball,pin,since such pressure balance of the ball,those who change,which means the ball may sell out along the bevel,making connections with the axis of the hole,locking mechanism to unlock,two module is returned.Therefore,when the module weight increases or interference to join the organization of force increases,the reliability of the connection will decrease.
Knowledge of mechanics,too:
(1) 3 -
(2) 3 -
(3-3)
(3-4),
(3-5),
(3-6)
Simultaneous equations,can have more:
(3),(7) -
Note to figure 3.10 (a),(b) and figure 2.9 (a),(b) is different,so the type (3-4) with (2-4) is different; (3-4) for new connection,pin imposed by the pressure and ball screw writing.i vector and the ball is to connect hole wall pressure and type (2-4) shows that both the vector is pressure,it shows that the new connections to pin put the ball pressure is also used to balance the gravity and old connection was just is used to increase the gravity separation connection,this is the difference between new connection.For new connection,when the weight of the module,also increases with increasing,but due to balance and the reliability of the connection,so will the institutions to higher than the original one.
The two modules connected institutions with together,stress the worst part is two docking rotating arm.A rotating arm as an axis,and have a connecting holes,therefore,we connect to the vertical stress analysis of mechanism of connection.Chart shown,3.9m 2.10 connection when connecting two single diagram.
As shown in figure 2.10 respectively,the axis connecting holes and the ball bearing,were only draw a ball,and connecting holes are only a part of the function with a ball,the calculation to the corresponding power based on the superior to 3.Set of modules for connecting shaft center of gravity,the sales of chamfering,as a ball,the pressure exerted to pin to pin a ball pressure imposed,are:
(2-1)
For the cylinder pressure gas pressure,the counter for a ball,which is a ball writing.i imposed connection of the inner pore pressure,combined with the horizontal axis Angle for connecting holes on wall,a ball pressure,apparently,the:
(2-2)
Knowledge of mechanics,too:
(2-3)
(2-4)
(2-5)
(2-6)
Simultaneous equations,can have more:
(2),(7) -
Thus,when taking the actual maximum and minimum value when,it is the smallest of the air pressure required.Practice is fixed,so this module can bear the weight is limited.When the weight of the module,also increases with increasing,but the reality is,so I need to increase,and connection of inner pore pressure to force will also increase the ball,but due to the constant pressure to the ball,pin,since such pressure balance of the ball,those who change,which means the ball may sell out along the bevel,making connections with the axis of the hole,locking mechanism to unlock,two module is returned.Therefore,when the module weight increases or interference to join the organization of force increases,the reliability of the connection will decrease.
Knowledge of mechanics,too:
(1) 3 -
(2) 3 -
(3-3)
(3-4),
(3-5),
(3-6)
Simultaneous equations,can have more:
(3),(7) -
Note to figure 3.10 (a),(b) and figure 2.9 (a),(b) is different,so the type (3-4) with (2-4) is different; (3-4) for new connection,pin imposed by the pressure and ball screw writing.i vector and the ball is to connect hole wall pressure and type (2-4) shows that both the vector is pressure,it shows that the new connections to pin put the ball pressure is also used to balance the gravity and old connection was just is used to increase the gravity separation connection,this is the difference between new connection.For new connection,when the weight of the module,also increases with increasing,but due to balance and the reliability of the connection,so will the institutions to higher than the original one.
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