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Shanghai Jianping Dynamic Balancing Machine Manufacturing Co., Ltd.

Add: No.2151,Panchuan Road,Luojing Town,Baoshan District,Shanghai. China.


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Hard bearing, 2-plane, Horizontal Balancing Machine

A balancing machine for horizontally supporting a workpiece comprising: a machine bed; a first vertical stanchion mounted on said machine bed; a second vertical stanchion spaced from said first vertical stanchion and moveably mounted on said machine bed for variably positioning said second vertical stanchion in a predetermined location on said machine bed with respect to said first vertical stanchion; a first bearing assembly operatively fixed to said first vertical stanchion and a second bearing assembly operatively fixed to said second vertical stanchion, said first and second bearing assemblies each respectively including first and second bearing blocks rotatably mounted on first and second axes, said first axis of each bearing assembly angularly positioned with respect to said second axis of each bearing assembly for generally forming a V-shape, each of said bearing blocks having a planar bearing surface for contacting the workpiece, said planar bearing surfaces being generally parallel with said respective axes supporting said bearing blocks, whereby said bearing blocks independently rotate upon said axes to maintain optimum surface contact with the workpiece irrespective of vertical and horizontal misalignment of the workpiece between said first bearing assembly and said second bearing assembly; and means for rotating the workpiece as the workpiece is supported by said bearing blocks.                  

2. The balancing machine of claim 1 wherein said first vertical stanchion is moveably mounted on said machine bed for further variably positioning of said first vertical stanchion with respect to said moveable second vertical stanchion.

3. The balancing machine of claim 1 wherein said first axis of each bearing assembly is angularly disposed with respect to said second axis of each bearing assembly at an angle of between 90° and 120°. 

4. The balancing machine of claim 1 wherein said first bearing assembly is operatively connected to said first vertical stanchion through a first resilient means and said second bearing assembly is operatively connected to said second vertical stanchion through a second resilient means, whereby any vibrational forces acting on the workpiece as the workpiece is rotated which are received by said bearing surfaces of said bearing blocks will act on said first and second bearing assemblies in a responsive manner and cause said first and second bearing assemblies to vibrate without imparting any vibrational motion to said first and second vertical stanchions.

5. The balancing machine of claim 4 wherein said first resilient means is removably connected to said first bearing assembly and said first vertical stanchion and said second resilient means is removably connected to said second bearing assembly and said second vertical stanchion, whereby said first and second resilient means may be removed and replaced.                    

6. The balancing machine of claim 4 further including a first vibration transducing means fixed to said first vertical stanchion and contacting said first bearing assembly for measuring the vibrational forces acting on said first bearing assembly and a second vibration transducing means fixed to said second vertical stanchion and contacting said second bearing assembly for measuring the vibrational forces acting on said second bearing assembly.                    

7. The balancing machine of claim 6 wherein said first and second vibration transducing means each include a vibration sensing means resiliently urged into continuous communication with said respective first and second bearing assemblies for providing a continuous and accurate measurement of the vibrational forces acting on said first and second bearing assemblies.                    

8. The balancing machine of claim 1 wherein said means for rotating said workpiece includes a motor mounted on said machine bed and a belt means in communication with said motor and the workpiece, said motor driving said belt to rotate the workpiece.                    

9. The balancing machine of claim 8 further including a workpiece angle indicator means mounted on said machine bed and in communication with one end of the workpiece, said angle indicator means being axially fixed to restrain axial movement of the workpiece along the workpiece axis and rotationally and angularly adapted for following motion irregularities of the workpiece caused by vibrational forces and misalignment of the workpiece as the workpiece is rotated.      

10. The balancing machine of claim 9 wherein said angle indicator means further includes a magnetic coupling means for attaching to an end of the workpiece without impairing the rotational motion of the workpiece.                    

11. The balancing machine of claim 10 wherein said angle indicator means includes disc means positioned to rotate in conjunction with the workpiece, said disc having a first face circumferentially marked for providing an operator of said balancing machine with workpiece positional reference information, said disc further having a second face opposed to said first face, said second face having means to generate rotary encoder information for transmission to an encoder sensing means for analyzing amounts and locations of rotational imbalance of the workpiece and for providing rotational speed information of the workpiece.                    

12. A balancing machine for horizontally supporting a workpiece comprising: a machine bed; a first bearing means mounted on said machine bed; a second bearing means spaced from said first bearing means and moveably mounted on said machine bed, said first and second bearing means supporting the workpiece; means for rotating the workpiece as the workpiece is supported on said first and second bearing means; means for measuring any vibrational forces acting on the workpiece as the workpiece is rotated; and a workpiece angle indicator means mounted on said machine bed and in communication with the workpiece independent from said rotating means, said angle indicator means being fixed to restrain axial movement of the workpiece along the workpiece axis and rotationally and angularly adapted for following any motion irregularities of the workpiece caused by vibration forces and misalignment of the workpiece as the workpiece is rotated by said rotating means, said angle indicator means further including a magnetic coupling means for attaching to an end of the workpiece without impairing the rotational motion of the workpiece.