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Analysis of the reasons for the inflexibility of the grab arm in the use of the wood grabber

2022-03-07 13:55:26
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The flexibility and precision of the two arms of the wood grabber are not high, which is directly related to the hydraulic components and hydraulic valves used in the wood grabber.

Friends who understand hydraulic systems may understand faster. Different hydraulic components and hydraulic valves have different effects on the wood grabber. Good accessories will inevitably strengthen the various movements of the equipment, otherwise it will affect the flexibility of the whole machine.

The wood grabber adopts hydraulic drive for clamping and handling operations, and is generally suitable for mountain areas, forest farms and other places. There are many wood grabbers, all of which are modified according to long-term professional needs. After the transformation, the adaptability of cargo loading and unloading is stronger, the efficiency is greatly improved, and the stability will also provide a stronger guarantee.

Mechanical use is composed of multiple systems, and problems in one part will affect the overall operating efficiency.

The following investigation and analysis are carried out for the failure phenomenon of the unsteady grasping of the wood grabber:

After finding faulty parts, do not replace new parts easily, because some parts are not damaged and can be used after cleaning; some have repair value and can be reused after repair. Therefore, when troubleshooting, be careful not to rush replacement, and fully consider whether the root cause of the failure is really eliminated by replacement.

Check whether the hydraulic oil level meets the standard, whether the filter element is blocked, and whether the oil grade meets the requirements. If it does not meet the requirements, it should be resolved first. Then, observe whether the oil temperature is too high during operation. If it is too high, check the hydraulic oil cooling system to find the cause and eliminate it. Measure the working pressure of the weak part of the work and compare it with the standard value.

Apart from troubleshooting the cause and replacing parts, all parts of the system are considered, even the fuel tank will have metal debris. If not cleaned, the machine will be damaged again. Therefore, before replacing the hydraulic system, oil tank and filter element, the oil and filter element must be cleaned.

Also be very careful when choosing the various accessories for the wood grabber. Take the boom crane manual valve as an example. Manual valves are mostly dedicated multi-way valves. The flow rate of the multi-way valve is 60L/min, and the liquid flow channel is 8 ways. The valve is equipped with a superimposed overload protection valve on part of the circuit to avoid damage to the hydraulic oil pipe and hydraulic cylinder and mechanical failure due to equipment overload during operation. The hydraulic valve of the wood grabber is small in size, light in weight, small in valve core clearance, and excellent in valve core material, which ensures the smooth operation of the hydraulic system. Low operating intensity, reduced internal unloading, reliable pressure holding and long service life.

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