Basic structure and common faults of hydraulic torque wrench
High-power hydraulic torque wrench is a very important part in the piston engine. Its basic function is to control the valve opening and closing actions. In the structure, there is a camshaft, and the main body is a cylindrical rod body which is substantially the same length as the cylinder group. There are also many standard cams set on it, which can be used to drive the valve. One end of the camshaft is also the main supporting point of the bearing, and the other end is effectively connected to the driving wheel.
The side of the cam is in the form of an egg, and the main purpose of the design is to ensure that the cylinder can fully intake and exhaust. Specifically, the hydraulic torque wrench valve opens and closes as short as possible. In addition to considering engine durability and smoothness during operation, the valve must not have too much or too much impact due to the acceleration and deceleration of the opening and closing, then it will cause serious wear and tear of the valve, and the noise will greatly increase. Serious consequences.
Generally speaking, in an inline engine, one of the cams corresponds to a valve of the machine. In a V-type engine and a horizontally opposed engine, this cam is shared by every two valves. In rotor engines and valveless gas engines, there are special structures that eliminate the need for cams.
Common faults of hydraulic torque wrench
The most common failures of camshafts are abnormal sounds and fractures called abnormal wear. Before the abnormal sounds and fractures occur, there are many symptoms such as abnormal wear. The camshaft is installed at the end of the engine lubrication system, and the lubrication condition is not optimistic.
If the oil pump is used for a long time, etc., there may be situations such as insufficient oil supply pressure, and the lubricating oil passage may be blocked, which may cause the lubricant to not reach the camshaft, and the bolts on the bearing cover are tightened. When it is too large, the lubricant cannot enter the camshaft clearance, which will cause abnormal wear on the camshaft.
The introduction introduced above is the basic structure of hydraulic torque wrenches and the basic conditions of common faults. You must pay attention to them in use.
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