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.