IMPROVED OPERATION LEVER FOR LEFT AND RIGHT SLIDING WING OF SNOW REMOVAL BLADE THAT IS WORKING ATTACHMENT OF WHEEL LOADER, AND HYDRAULIC CIRCUIT FOR SAME

摘要

To solve the following problems: the increase in the number of hydraulic circuits for the operation of wheel loader snow removal attachments; the necessity of increasing the number of levers to control the hydraulic circuits; and safety issues such as slow attachment operation and the like.SOLUTION: In the present invention, a general purpose snow removal blade used for a snow removal attachment has three to four valve operating main valves and six newly added circuit switching valves. The number of operation levers for the three to four valves is reduced from three to two levers by operating each of two hydraulic cylinders to move a total of four hydraulic cylinders.SELECTED DRAWING: Figure 1