Recently, Hanjiawan Coal Company 2^-2The belt bottom roller replacement device is put into use in the coal glue transport tunnel，This device improves work efficiency、Reduced labor intensity of employees，Add another “sharp weapon” m88 online sports bettingto mine safety production。

The company’s electromechanical operation team is responsible for the operation and maintenance of 6 underground belt conveyors。The tape machine has a long running time，The number of replacement rollers of the belt conveyor also increases。Especially when replacing the bottom roller，It requires the cooperation of 3 maintenance personnel to complete the replacement work，Time-consuming and laborious，Another safety hazard。To achieve high efficiency、Safely replace the bottom roller，The team organized technical backbones for multiple investigations and demonstrations，Finally independently designed this quick roller replacement device。

This device uses the "lever principle"，Select diameter 20 mm，length 1.2 meter round steel pipe，Punch a hole at one end and weld the support ear seat，Use another thick steel plate，Intermediate processing to make hook groove，Finally, polish the finished parts、m88 online sports bettingAssembly、Brush paint and brighten。When replacing the bottom roller，Separate the claws at the front end to clamp the shaft of the roller，Press the rear end hard，The front claw can clamp the shaft of the roller and remove it from the roller fixed groove，And quickly remove the roller。

“After this ‘sharp tool’ is put into use，Our maintenance staff has been reduced from the original 3 to 1，Replacement time reduced from 15 minutes to 3 minutes，It really saves time and effort，We will promote this device，Empowering the company’s safe production and increasing efficiency。" said Wang Taiping, the leader of the team。(High earthquake)