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    • 7. 发明授权
    • Bead width adjusting apparatus for tire uniformity machines
    • 用于轮胎均匀机的胎圈宽度调节装置
    • US5719331A
    • 1998-02-17
    • US638583
    • 1996-04-29
    • Richard L. Delmoro
    • Richard L. Delmoro
    • B29D30/08G01M17/02E01C23/00
    • G01M17/021
    • A tire uniformity machine includes a chucking apparatus (8) that accommodates tires (13) of varying bead width spacings. The chucking apparatus (8) includes a lower chuck assembly (10) positioned below a upper chuck assembly (12). The lower chuck assembly (10) includes an inner spindle apparatus (20) that is rotatably received within an outer spindle apparatus (22). The inner (20) and outer (22) spindle apparatus are carried by the piston rods (38 and 54) of a dual piston cylinder (52). An elongate nose cone (26) of the inner spindle apparatus (20) is carried by the inner piston rod (38), while the outer spindle apparatus (22) is carried by the outer piston rod (54). The dual piston cylinder (52) is operable to independently raise and lower the inner (38) and outer (54) piston rods. The operation of the dual piston cylinder (52) is controlled by a low pressure valve (110), a high pressure valve (112) and a servo valve (114). These valves are, in turn, controlled by a programmable logic controller (104) that follows a sequencing program and instructions from and electric control unit (100). During operation, a position sensor (120) constantly obtains the position of the chucking apparatus (8) and directs this information to the programmable logic controller (104). The programmable logic controller (104) accepts the position information and directs the dual piston cylinder (52) to locate the chucking apparatus (8) at a given position depending on the bead width spacings of the tire (13) to be tested.
    • 轮胎均匀机包括容纳具有变化的胎圈宽度间隔的轮胎(13)的夹紧装置(8)。 夹持装置(8)包括位于上夹盘组件(12)下方的下卡盘组件(10)。 下卡盘组件(10)包括可旋转地容纳在外主轴装置(22)内的内心轴装置(20)。 内(20)和外(22)主轴装置由双活塞气缸(52)的活塞杆(38和54)承载。 内主轴装置(20)的细长鼻锥(26)由内活塞杆(38)承载,而外主轴装置(22)由外活塞杆(54)承载。 双活塞气缸(52)可操作以独立地升高和降低内(38)和外(54)活塞杆。 双活塞气缸(52)的操作由低压阀(110),高压阀(112)和伺服阀(114)控制。 这些阀又由可编程逻辑控制器(104)控制,该可编程逻辑控制器(104)遵循排序程序和来自和电控单元(100)的指令。 在操作期间,位置传感器(120)不断地获得夹持装置(8)的位置并将该信息引导到可编程逻辑控制器(104)。 可编程逻辑控制器(104)接受位置信息并引导双活塞气缸(52)根据待测轮胎(13)的胎圈宽度间隔将夹紧装置(8)定位在给定位置。