Skid-steer loader working device

Abstract

The invention discloses a skid-steer loader working device which comprises a movable arm, a rocker arm, a connecting rod and a movable arm cylinder, wherein the upper end and the lower end of the rocker arm are respectively articulated with the upper side of a carriage frame and the rear end of the movable arm in two points A and B, both ends of the connecting rod are respectively articulated with the middle part of the movable arm and the upper side of the carriage frame in two points C and D, and the upper end and the lower end of the movable arm cylinder are respectively articulated with the lower side of the carriage frame and the middle part of the movable arm in two points E and F; the distances H1 and H2 between the points A and C and the bottom edge of the carriage frame are greater than three fourths of the height H of the carriage frame, and the distance H3 between the point E and the bottom edge of the carriage frame is less than one fourth of the height H of the carriage frame. When a piston rod of the movable arm cylinder stretches out and pushes the movable arm to rotate and lift around the point B through the hinge point F, the hinge point F rotates around the pointE counterclockwise, the point B rotates around the point A counterclockwise, the point D rotates around the point C clockwise, and thus, the movable arm is driven to lift a bucket. The skid-steer loader working device has compact and reasonable structure, the movement track of the movable arm is smooth and has no inflection point, the unloading distance is great, the working device moves smoothly, and materials are not easy to scatter everywhere.

Description

technical field [0001] The invention relates to a working device of a loader, in particular to a working device for lifting a bucket of a skid steer loader, and belongs to the technical field of engineering machinery. Background technique [0002] The skid steer loader is a small and compact loader. Its unloading height and unloading distance are very important technical parameters reflecting the performance of the skid steer loader. The unloading distance refers to when the bucket is at the lowest point and when it is lifted to The horizontal distance of the highest point relative to the direction of the vehicle body. The existing skid steer loader working device adopts that the rear end of the boom is directly hinged with the vehicle frame, and the two ends of the boom cylinder are respectively hinged with the vehicle frame and the proper position in the middle of the boom. When working, under the action of the extension force of the piston rod of the boom cylinder, the m...

AI Technical Summary

Problems solved by technology

[0003] The Chinese utility model patent with the authorized announcement number CN 2687076Y discloses a skid steer loader working device that can increase the unloading height and unloading distance, but there is an inflection point in the upper part of the movement track of the boom of the working device, which causes the working device to move unsmoothly , the material is easy to scatter

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