The invention discloses a brake device of a loop chain hydraulic hoist. The brake device comprises a quantitative self-pressure-relief type single-drive flow distribution mechanism, a self-locking type hydraulic drive mechanism, a self-locking type hydraulic lifting mechanism and a hoisting bearing mechanism. The invention belongs to the technical field of hydraulic hoist braking, and particularly relates to a loop chain hydraulic hoist braking device. In order to simplify the structure, reduce the cost and optimize the control logic, a new way and a conventional design thought against electronic control are provided, and the driving hydraulic pressure is used for controlling locking and unlocking; in addition, rapid switching between two axial directions is achieved through the quantitative self-pressure-relief type single-drive flow distribution mechanism, and it is guaranteed that a set of motors which are not in a driving state can be automatically locked through a quantitative pressure relief mode in the switching process.
本发明公开了一种环链液压葫芦制动装置,包括定量自卸压式单驱配流机构、自锁式液压驱动机构、自锁式液压提升机构和吊装承载机构。本发明属于液压葫芦制动技术领域,具体是指一种环链液压葫芦制动装置;本发明为了简化结构、降低成本、优化控制逻辑,本发明另辟蹊径,一反电子控制的常规设计思路,利用驱动液压本身进行锁止和解锁的控制;不仅如此,本发明还通过定量自卸压式单驱配流机构实现了两个轴向之间的快速切换,并且通过在切换过程中定量泄压的方式,保证不在驱动状态的一组马达会自动锁止。
Brake device of loop chain hydraulic hoist
一种环链液压葫芦制动装置
2023-03-28
Patent
Electronic Resource
Chinese