High-power hydraulic torque wrench generally refers to a bolt fastening tool that can output and set torque, which belongs to high pressure hydraulic tools and is widely used in equipment maintenance and installation in many heavy chemical industry fields. Hydraulic torque wrench has two kinds of drive shaft and hollow type.
Construction of high power hydraulic torque wrench:
The main body of the camshaft is a cylindrical rod with the same length as the cylinder. The upper sleeve has several cams for driving the valve. One end of the camshaft is the bearing support point, and the other end is connected to the drive wheel.
The side of the CAM is egg shaped. The purpose of its design is to ensure sufficient intake and exhaust of the cylinder, specifically, to complete the opening and closing of the valve in the shortest possible time. In addition, considering the durability of the engine and the smoothness of operation, the valve can not produce too much impact due to the acceleration and deceleration process of the opening and closing action, otherwise it will cause serious wear of the valve, increased noise or other serious consequences.
In a straight-line engine, each CAM corresponds to a valve, while a V-type or horizontally opposed engine shares a CAM for each of the two valves. However, rotor engines and valveless engines do not need cams because of their special structure.
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