| 摘要 |
<p>A vibratory screening apparatus comprises a frame having a pair of opposed screen frame sides (101), at least one screen (12a) mounted on the frame sides, and a shaft-driven vibrating mechanism (102) mounted on the frame and which comprises: a shaft (103, 104) which extend throughout the width of the apparatus between the screen frame sides (101), and has shaft ends (104) projecting outwardly of the screen frame sides (101); each shaft end (104) is mounted on a respective frame side (101) via mounting means including a respective bearing assembly (105); and each shaft end (104) carries, and/or embodies a rotatable mass which has a centre of rotation which is radially spaced from the axis (108) of the shaft (103) in order to transmit vibrational energy to the screen frame sides (101): characterised in that the shaft (103) is hollow, and each shaft end (104) comprises a stubshaft which is solid and which is secured to a respective end of the hollow shaft; and each bearing assembly (105) is mounted inboard of the respective frame side (101).</p> |
