矿井提升机在工作过程中,减速或停车所需要的制动力是随着提升容器在井筒中的位置和提升速度不同而变化的。为了解决这一问题,Fullerton,Hodqart and Barclay ltd公司设计出一种新型制动系绕。它通过行程和速度传感器,对提升容器在并筒中的位置和运动速度进行监视,随之发出电气讯号和机械讯号以使制动系统产生相应的制动力。双卷筒提升机的新型制动系统如附图所示。它的传感系统有两部份:第一部分包括推杆1、凸轮2、通过减速器4与卷筒3相联,用以反映提升容器在井筒中的位置。第二部分包括推杆5、凸轮6,通 Mine hoist in the course of work, deceleration or parking brake force required to promote the container in the wellbore position and lift speed varies. To solve this problem, Fullerton, Hodqart and Barclay ltd designed a new braking system around. It uses stroke and speed sensors to monitor the position and speed of the container in the drum and send out electrical signals and mechanical signals to make the braking system generate the appropriate braking force. The new brake system of double drum hoist is shown in the attached figure. Its sensing system has two parts: the first part consists of the push rod 1 and the cam 2, which is connected with the drum 3 through the gear reducer 4 to reflect the position of the lifting vessel in the well bore. The second part includes putter 5, cam 6, through