The invention discloses an automatic speed limiting wheel for a hand-pulled forklift, which comprises a wheel body, a wheel ditch, a spoke, a wheel sleeve and a wheel shaft. The structure of the wheel of the hand-pulled forklift is improved, an automatic speed limiting mechanism is additionally arranged in the wheel body, when the speed of the wheel of the hand-pulled forklift is too high, a centrifugal wheel is subjected to large centrifugal force, a connecting rod is separated from a magnet and rotates, the driving disc is driven to overcome the elastic force of a first spring to move leftwards, an arch-shaped frame is driven to move leftwards, an S-shaped wedge block is driven to move upwards, a driving sleeve is driven to move rightwards, the driving sleeve is meshed with teeth of a locking sleeve, and a one-way bearing is reversely locked, so that the arch-shaped frame is locked, a friction block is locked, sliding friction is generated between the friction block and the inner surface of a wheel body, and speed reduction and automatic speed limiting of the wheel body are achieved; when the forklift carries goods and passes through a downhill terrain, the running speed of the forklift cannot be increased suddenly and is always in a manually controllable range, and the safety of the hand-operated forklift in the using process is improved.

    本发明公开了一种用于手拉叉车的自动限速轮,包含轮体、轮沟、轮辐、轮套及轮轴,本发明通过对手动叉车的车轮进行结构上的改进,在轮体中增设自动限速机构,当叉车车轮速度过大时,离心轮受到较大离心力,连杆脱离磁铁,并发生转动,带动驱动盘克服第一弹簧弹力向左移动,带动弓形架左移,S形楔块上移,驱动套右移,驱动套与锁止套的齿啮合,单向轴承反向锁止,使得弓形架锁止,摩擦块锁止,摩擦块与轮体内表面产生滑动摩擦,促使轮体减速,自动限速的实现,使得叉车承载货物经过下坡的地形时,其运行速度不会陡然加快,始终处于人力可控的范围中,增加了手动叉车使用过程中的安全性。


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    Title :

    Automatic speed limiting wheel for hand-pulled forklift


    Additional title:

    一种用于手拉叉车的自动限速轮


    Publication date :

    2021-05-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS / 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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