The quality and purchase of bucket teeth
When we buy mechanical parts such as bucket teeth, we often worry about one thing, that is, how to buy and buy which one, and what brand. Here’s how to buy bucket teeth for you!
Air holes were found around the hot section of the dissected bucket tooth workpiece, and air holes were also found on the wall near the core cavity.
The pores in the kneading casting can be divided into split pores, invasive pores, and reverberant pores. Most of the pores and shrinkage in the casting process are accompanied by the release of gas. It is associated. If the gas content in the alloy is too high, or too much gas is invaded during the filling process of the liquid metal, the aforementioned shrinkage or pore structure will be aggravated. After analyzing the cut bucket teeth, we can see that the stomata are scattered randomly, and the pores are large, mostly spherical and spherical. It can be determined that this pore is basically an invasive pore.
A position calculating apparatus for a work machine for detecting a posture angle of the work machine having a traveling body and a rotary body mounted on the traveling body and rotatable relative to the traveling body, the posture calculating apparatus comprising: a detecting device that detects an angular velocity and acceleration of the working machine wherein the detection device is provided on the rotary body; an acceleration correcting unit that detects the acceleration detected by the detecting device at an acceleration to be detected when the detecting device is placed on a center of the rotating body by subtracting acceleration components acting on the detecting device, including a centrifugal force resulting from a centrifugal force of the detected acceleration detected by the detection device, based on a position in which the detection device is placed in the rotary body with respect to the center of the rotary body, and corrected on the basis of the angular velocity and acceleration detected by the detection device; and a posture angle calculating unit that detects a posture angle of the working machine from the acceleration corrected by the acceleration correcting unit and the angular velocity detected by the detecting device,
A posture calculating device for a work machine according to claim 1, wherein the acceleration correcting unit detects the acceleration detected by the detecting device at an acceleration to be detected when the detecting device is placed on the center of the rotating body by subtracting the acceleration components acting on the detecting device including the centrifugal acceleration , which is determined from centrifugal force from the acceleration detected by the detection device, further based on an inclination angle about an axis other than a vertical axis of a local coordinate system of the detection device, a placement angle indicating an inclination of the position in which the detection device is placed in a local coordinate system of the work machine, a distance to the detection device with respect to a vertical axis of the local coordinate system of the work machine, and corrected angular velocity about the vertical axis of the machine.
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