The invention discloses a built-in oil pipe type oil cylinder module for a transport vehicle wheel train, a wheel train unit and a transport vehicle. The built-in oil pipe type oil cylinder module for the transport vehicle wheel train comprises a piston rod, a cylinder barrel and an outer cylinder sleeve; the piston rod is nested in the cylinder barrel; an oil pipe 1 and an oil pipe 2 are arranged in the piston rod; the oil pipe 1 communicates with a rodless cavity in the cylinder barrel; the oil pipe 2 communicates with a rod cavity in the cylinder barrel; the piston rod and the cylinder barrel do not rotate relatively; the cylinder barrel is sleeved with the outer cylinder sleeve; and the outer cylinder sleeve and the cylinder barrel freely rotate relative to each other. The built-in oil pipes are adopted; when the piston rod ascends and descends, the two oil pipes do not displace relative to the piston rod, so that the situation that an external oil pipe is continuously bent when the piston rod ascends and descends is avoided; and when the outer cylinder sleeve rotates relative to the cylinder barrel, the built-in oil pipes do not rotate relative to the cylinder barrel, so that the situation that the external oil pipe is continuously wound and twisted during steering is avoided, the service life of the oil pipes is prolonged, reliability is good; and the application range is wide.
本发明公开了一种运输车轮系用内置油管式油缸模组、轮系单元和运输车,其中,运输车轮系用内置油管式油缸模组包括活塞杆、缸筒和外缸套;所述活塞杆嵌套在所述缸筒内,所述活塞杆内部设置油管一和油管二,所述油管一与所述缸筒内无杆腔连通,所述油管二与所述缸筒内有杆腔连通,所述活塞杆与所述缸筒不发生相对转动;所述外缸套套装在所述缸筒外且外缸套和缸筒相对自由转动。本发明采用了内置油管,活塞杆升降时,两根油管相对于活塞杆不存在位移,避免外置油管在活塞杆升降时不断弯折,当外缸套在相对于缸筒旋转,内置油管也不会相对缸筒旋转,避免外置油管在转向时不断缠绕、扭动,油管寿命提高,可靠性好,适用范围广。
Built-in oil pipe type oil cylinder module for transport vehicle wheel train, wheel train unit and transport vehicle
运输车轮系用内置油管式油缸模组、轮系单元和运输车
2021-06-15
Patent
Elektronische Ressource
Chinesisch
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