The invention provides a steel wire rope pre-tightening device and a crane. The steel wire rope pre-tightening device comprises a rack, two chain transmission devices and a driving device, wherein thetwo chain transmission devices are arranged on the rack side by side; each chain transmission device comprises a transmission chain, a chain driving wheel and a chain driven wheel; the transmission chain is arranged on the chain driving wheel and the chain driven wheel in a sleeving manner; the chain driving wheel and the chain driven wheel are rotatably arranged on the rack; and the two transmission chains are used for tightly holding a steel wire rope passing between the two chain transmission devices. When the steel wire rope is retracted, the steel wire rope can drive the two transmissionchains to drive synchronously; the driving device is arranged on the rack and is used for applying reverse moment of force to each chain driving wheel, so that each transmission chain generates pre-tightening force, the direction of which is opposite to the transmission direction of the transmission chain. The steel wire rope pre-tightening device can provide pre-tightening force when the steel wire rope is retracted, improves the quality of rope arrangement, and prolongs the service life of the steel wire rope.
本申请提供一种钢丝绳预紧装置以及起重机,该钢丝绳预紧装置包括机架、两个链条传动装置以及驱动装置,两个链条传动装置并列设置在机架上,每个链条传动装置包括传动链条、链条驱动轮以及链条从动轮,传动链条套设在链条驱动轮与链条从动轮上,链条驱动轮以及链条从动轮转动设置在机架上;两个传动链条用于抱紧从两个链条传动装置之间穿过的钢丝绳,当钢丝绳收绳时,钢丝绳可带动两个传动链条同步传动;驱动装置设置在机架上,用于向每个链条驱动轮上施加反向力矩,以使每个传动链条上产生方向与传动链条的传动方向相反的预紧力。该钢丝绳预紧装置能够提供在钢丝绳收绳时提供预紧力,提高排绳质量,延长钢丝绳使用寿命。
Steel wire rope pre-tightening device and crane
一种钢丝绳预紧装置以及起重机
2020-10-30
Patent
Electronic Resource
Chinese
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