(1) plane angle
Plane angle refers to being on the horizontal plane. The acute angle or right angle between the blade and the longitudinal axis of the bulldozer.
Bulldozers can be divided into fixed shovel bulldozers and mobile shovel bulldozers according to whether the plane angle of the shovel can be changed.
The plane angle of fixed shovel bulldozer is 90 degrees and fixed, so its operation stability is good.
The blade plane angle of mobile shovel bulldozer can be adjusted within a certain range. When the shovel blade is adjusted to a certain angle to the left or right in the horizontal plane, lateral soil unloading can be realized, which is called oblique shovel. Oblique shovel is used to level the site, build half-dug and half-filled subgrade or carry out other soil cutting operations in the slope area. When the shovel is at right angles to the longitudinal axis of the bulldozer, it is called a front shovel, which is generally used. Therefore, the mobile shovel bulldozer can adapt to the terrain changes and construction requirements, and has been widely used.
(2) Angle of inclination
The inclination angle refers to the acute angle between the blade and the ground in the vertical plane. A shovel is called a side shovel after it tilts at a certain angle in the vertical plane. Side shovels are mainly used for shaping the arch subgrade of roads, digging side ditches of roads or loosening the soil in hard soil.
(3) shovel angle
The shovel angle refers to the acute angle between the shovel and the ground when the shovel is supported on the ground. Changing the shovel angle can change the cutting resistance of the shovel, adapt to different grades of soil and improve work efficiency. When shoveling grade I soil, the shovel angle should be increased, and when shoveling grade II and III soil, the shovel angle should be reduced.