The plastic handwheel is used to continuously connect the handwheel when used in the most common auxiliary handwheel of a linear actuator. It is a combination of key on the load actuator and placed in the neutral range to adjust the actuator stroke without interference from the handwheel. As the handwheel rotates, the handwheel nut (or similar facility) moves beyond the neutral range and engages the upper and lower stops. As the handwheel continues to rotate, the handwheel nut is pushed toward the stop causing the actuator stem to move in that direction. The advantage of the continuous connection structure is that in order to operate the actuator, he does not need to provide a few pieces of the disengagement clutch to disengage or disengage the plastic hand wheel, and the upper hand wheel leaves the non-neutral, which acts like a limit in this direction. Actuator. The continuous connection handwheel mounted on the actuator can be mounted either on the top or sideways (the laterally mounted continuous connection handwheel can be designed as a separate piece and then mounted on a slightly modified actuator such as a dedicated yoke By attaching the handwheel to the actuator from the outside on the cylinder casing or diaphragm casing, the main advantage of this mechanism is that the plastic handwheel can be used to lock the valve stem position, and when the valve is still in operation, the cylinder casing can be removed or Diaphragm housing.
Another long-sword used for linear actuators, your auxiliary handwheel structure is a "push-only handwheel" that is commonly used for top construction of diaphragm actuators and piston-cylinder actuators, and the basic principle is simple. As the handwheel rotates, the handwheel bar (which is threaded into the top of the actuator) descends until it contacts the piston or diaphragm and pushes them until the valve is closed or reaches the midpoint of the stroke. This retractable structure requires a spring on the opposite side of the piston and diaphragm to ensure its resistance. The handwheel can be used not only for valve closing and throttling, but also as an upper limit stop. An improved structure can be used for reversible actuators. Currently used locators are wire-wound, optical, and computer-drawn. And the computer laser type, their measurement principle is the same, only the measurement method (or the type of sensor used) and the way of data recording and transmission are different. Here are just a few important things that the four wheel aligner can measure. The measurement principle of the test item.