The invention discloses a supporting wheel structure and a tool trolley. The supporting wheel structure comprises a wheel frame, a screw rod, a swing frame, a first supporting wheel and a second supporting wheel. One end of the wheel frame is used for being connected with a trolley body. The other end of the wheel frame is hinged to the middle portion of the swing frame. The end, close to the trolley body, of the swing frame is in threaded connection with the lower end of the screw rod. The end, away from the trolley body, of the swing frame is hinged to the second supporting wheel. The upperend of the screw rod penetrates through the wheel frame. A limiting nut abutting against the upper end face of the wheel frame is fixed to the upper end of the screw rod. The first supporting wheel ishinged to a conversion frame through a first wheel shaft. The upper end of the conversion frame is detachably and fixedly connected with the swing frame through a rotating shaft arranged vertically.The first supporting wheel is arranged between the screw rod and a hinge point of the middle portion of the swing frame. Therefore, the rotatable function of one supporting wheel is added, rotation ofthe supporting wheels of the whole trolley under the condition of loading is achieved through a screw pair, and switching from longitudinal walking to transverse walking is achieved, so that a largerturning space is not needed.
本发明公开了一种支重轮结构及工具车,支重轮结构包括轮架、螺杆、摆动架、第一支重轮和第二支重轮,轮架的一端用于与车体相连,轮架的另一端与摆动架的中部铰接;摆动架靠近车体的一端与螺杆的下端螺纹连接,摆动架远离车体的一端与第二支重轮铰接,螺杆的上端穿过轮架,且螺杆的上端固定有与轮架的上端面抵接的限位螺母;第一支重轮通过第一轮轴与一转换架铰接,转换架的上端通过一竖向布置的旋转轴与摆动架可拆卸固连,第一支重轮设于螺杆与所述摆动架中部的铰接点之间。由此,通过增加一个支重轮可旋转的功能,并通过螺旋副实现整车在带载情况下的支重轮旋转,实现纵向行走到横向行走的切换,从而不需要较大的转弯空间。
Supporting wheel structure and tool trolley
一种支重轮结构及工具车
01.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
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