bulldozer blades can be divided into fixed type and rotary type according to the installation position. The characteristics are as follows:

　　fixed

　　The longitudinal axis of the bulldozer and the bulldozer is fixed at a right angle, also known as the straight shovel. It has two structural forms, one is mainly composed of push beam, support arm, roll cylinder, diagonal support arm, and blade body. When the blade is loaded by the side, it must be transmitted to the main engine through the push beam. The diagonal support arms increase the combined rigidity of the push beam. Another fixed working device suitable for high-horsepower high-drive bulldozers is used The diagonal support is replaced by the diagonal support arm. When the fixed bulldozer is activated, the blade rotates around the longitudinal centerline of the vehicle body to achieve the purpose of adjusting the roll angle. When the roll cylinder is the longest, adjust the other The threaded support arm on one side makes it the shortest. At this time, the blade can reach the maximum roll angle. At present, in order to increase the roll height and meet the requirements of working conditions, some users only adjust the roll cylinder to achieve the maximum. Roll angle, ignoring the adjustment of the threaded arm on the other side.

　　rotary

　　The bulldozer blade can rotate an angle in the horizontal plane is called a rotary blade, also known as a movable type or an angle shovel type. Its structure is mainly composed of an arch-shaped frame arm assembly and a blade body. Because the blade is installed in On a rotatable hinge point, the hinge point is located at the center of the blade. Therefore, adjust the hinge point position of the left and right blade arms and the arch frame so that one side is before the hinge point and the other side is behind the hinge point. The blade can be rotated by an angle in the horizontal plane. When one side is at the frontmost position of the hinge point and the other side is at the last position of the hinge point, the maximum rotation angle can be obtained. It can also be adjusted by adjusting the threaded arm to make it one The side stretches and the other side shortens, so as to achieve the purpose of adjusting the roll angle.