Installation steps and debugging points of connecting rod lock
I. Introduction
With the development of society and the progress of science and technology, all kinds of mechanical equipment are widely used, and as one of the important components of mechanical transmission system, connecting rod lock plays an important role in practical application. This paper aims to introduce the installation steps and debugging points of connecting rod lock in detail.
Second, the connecting rod lock overview
Connecting rod lock is a device that connects two or more parts and makes them move synchronously, which is often used in engines, compressors and other equipment. It usually consists of piston rod, crankshaft pin and connecting rod. Among them, the connecting rod is the core part of the connecting rod lock, which bears great alternating stress and converts the reciprocating linear motion of the piston rod into the rotary motion of the crankshaft pin.
Third, the installation steps
1. Determine the assembly position: Determine the assembly position of the connecting rod lock on the machine body according to the drawing requirements.
2. Cleaning all parts: use gasoline or kerosene to clean all parts to be installed, remove dirt and burrs, and prevent impurities from entering the mechanism and affecting normal work.
3. Check the quality of the mating surface: it is required that the contact is good and there is no obvious concave-convex phenomenon, otherwise it should be polished and leveled before assembly;
4. Install the connecting rod big head cover: firstly, put the small head cover on the crosshead slider, and then tighten and fix the big head cover in the right direction; Be careful not to loosen the bolts to avoid damaging the parts.
5. Combination crank: align the assembled connecting rod assembly with the end hole of the crankshaft and slowly insert it until it is completely in place; If it is found that there is a stuck phenomenon, the reason should be found in time to eliminate it, so as to avoid accidents caused by forced pushing.
Four, debugging points
1. Adjustment of clearance of connecting rod big head:
① Use special tools to measure whether the clearance value between the big head and the crankshaft neck meets the standard requirements;
(2) If it is too large, appropriately increase the thickness of gasket to a suitable range;
③ and vice versa.
2. Piston stroke correction:
After starting the machine for a period of time, check the position deviation of the upper and lower dead center of the piston. If it exceeds the allowable error range, it needs to be disassembled again for correction.
3. Dynamic balance detection: The vibration condition of the whole unit is tested by special instruments, and it can be put into operation only after reaching the specified accuracy level.
V. Summary
Correct and reasonable installation of connecting rod lock can not only ensure stable and reliable product quality, but also effectively prolong service life and reduce maintenance cost. I hope that the majority of employees can fully realize the significance of this work, and strictly follow the relevant norms to implement each link of the operation process to jointly promote the technological progress and development of the industry!
Rec. Prods.
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