Resistance regulation braking device and using method thereof

Abstract

The present invention relates to a resistance regulation braking device and a using method thereof. A stationary shaft, a wire grip, and a rotary mandrel assembly are mounted on a frame. A rotary sleeve is mounted at an upper end of the stationary shaft. A driving member is arranged between the rotary sleeve and the mandrel. An elastic slider is arranged on the stationary shaft, and is located below the rotary sleeve. A lower magnetic part is arranged on the elastic slider. An upper magnetic part arranged opposite to the lower magnetic part is arranged on the rotary sleeve. The device is not only wide in resistance regulation range, but also high in resistance regulation precision, and has various resistance regulation means.

1 . A resistance regulation braking device, comprising a frame, a wire grip, and a rotary mandrel assembly, the wire grip and the rotary mandrel assembly being mounted on the frame, wherein a stationary shaft is arranged on the frame and is arranged parallel to a mandrel in the rotary mandrel assembly; a rotary sleeve is mounted at an upper end of the stationary shaft; a driving member is arranged between the rotary sleeve and the mandrel; when the mandrel rotates, the driving member is configured to drive the rotary sleeve to rotate around the stationary shaft; an elastic slider is arranged on a shaft body of the stationary shaft, and the elastic slider is located below the rotary sleeve; a lower magnetic part is arranged on the elastic slider; an upper magnetic part arranged opposite to the lower magnetic part is arranged on the rotary sleeve; when pulled by the wire grip, the elastic slider is configured to drive the lower magnetic part to move downwards, and an elastic body in the elastic slider is compressed; and a limiting barrier is arranged on the stationary shaft and is located between the rotary sleeve and the elastic slider. 
     
     
         2 . The resistance regulation braking device according to  claim 1 , wherein the upper magnetic part is an annular plate and the annular plate is a magnetic metal plate, and the lower magnetic part is an annular mounting plate and the annular mounting plate is made of a magnet; or
 the upper magnetic part is the annular plate and the annular plate is made of the magnet, and the lower magnetic part is the annular mounting plate and the annular mounting plate is the magnetic metal plate; or   the upper magnetic part is the annular plate and the annular plate is made of the magnet, and the lower magnetic part is the annular mounting plate and the annular mounting plate is made of the magnet.   
     
     
         3 . The resistance regulation braking device according to  claim 2 , wherein a non-magnetic metal plate is mounted on a lower end surface of the annular plate, or
 the non-magnetic metal plate is mounted on an upper end surface of the annular mounting plate.   
     
     
         4 . (canceled) 
     
     
         5 . The resistance regulation braking device according to  claim 1 , wherein the rotary sleeve comprises a second flywheel and two bearings; the second flywheel is mounted at the upper end of the stationary shaft through the two bearings; the upper magnetic part is fixedly mounted at a lower end of the second flywheel; and when the second flywheel rotates, the upper magnetic part rotates along with the second flywheel around the stationary shaft. 
     
     
         6 . The resistance regulation braking device according to  claim 1 , wherein the elastic slider comprises a linear bearing and the elastic body, a through hole of the linear bearing is in a shape of “ ” and a diameter of a narrow hole portion in the through hole in the shape of “ ” matches with a diameter of the stationary shaft, and a diameter of a wide hole portion in the through hole in the shape of “ ” matches with an outer diameter of the elastic body, and an inner hole diameter of the elastic body matches with the diameter of the stationary shaft; the linear bearing and the elastic body are respectively sleeved on the stationary shaft and the elastic body is located below the linear bearing; a lower end surface of the elastic body contacts with an upper end surface of a bottom plate of the frame, and an upper end surface of the elastic body contacts with a top surface of the wide hole portion, and at this time, the elastic body supports the linear bearing in a vertical direction; and the lower magnetic part is arranged at an upper end of the linear bearing. 
     
     
         7 . The resistance regulation braking device according to  claim 6 , wherein a guy wire fixator is arranged on an outer side surface of the linear bearing, and a stopper is arranged on the bottom plate of the frame and is located right below the guy wire fixator. 
     
     
         8 . (canceled) 
     
     
         9 . The resistance regulation braking device according to  claim 1 , wherein the driving member comprises a first flywheel and a conveyor belt; the first flywheel is fixedly mounted at an upper end of the mandrel and is in driving connection to a second flywheel in the rotary sleeve through the conveyor belt; and a diameter of the second flywheel is less than a diameter of the first flywheel. 
     
     
         10 . A method of using a resistance regulation braking device, involving a rotary knob and a controller, comprising the following steps: rotating, by a user, the rotary knob to give an instruction to the controller; controlling, by the controller, a wire grip to work according to the instruction; and controlling, by the controller, a motor in the wire grip to further wind or unwind a guy wire, wherein when the guy wire is further wound, a linear bearing in an elastic slider moves downwards along a stationary shaft under an action of a tensile force of the guy wire, and at this time, the linear bearing drives a lower magnetic part to move downwards to achieve a resistance reducing operation, at a same time, an elastic body in the elastic slider is compressed; and when the guy wire is further unwound, the linear bearing in the elastic slider moves upwards along the stationary shaft under an action of a restoring force of the elastic body, and at this time, the linear bearing drives the lower magnetic part to move upwards to achieve a resistance increasing operation, wherein a limiting barrier is arranged on the stationary shaft and is located between a rotary sleeve and the elastic slider to prevent contact adsorption of the lower magnetic part or an upper magnetic part.