Do these points well to extend the life of the excavator crushing hammer.

Nov 8th,2024 393 Views

Today, we introduce the daily care and maintenance of the crushing hammer for reference only.

Good maintenance can increase the life of the excavator, when the excavator is equipped with a crushing hammer, whether it is the crushing hammer itself or the excavator should pay attention to maintenance. The following aspects are more important.

The power source of the crushing hammer is the pressure oil from the hydraulic pump of the excavator, which drives the pressure oil into the crusher and releases the energy through the nitrogen chamber, pushing the piston down rapidly to achieve the strike.

Hammer maintenance

1. Check appearance

Check whether the bolts are loose; Whether the connecting pin is excessively worn: check whether the gap between the drill rod and its bushing is normal. In use, the butter should be regularly quantified and correctly beaten to prevent excessive wear and tear of wearing parts and extend their life.

Step 2 Lubricate

The lubrication points of the working device shall be lubricated before operation and after 2 days of each continuous operation. Correct position of filling butter: the drill rod is inserted vertically into the ground and pressed to the end, otherwise the butter enters the percussion chamber and is brought into the cylinder by the piston to mix with the hydraulic oil, causing "black oil". Add butter to guide sleeve and liner sleeve. Try not to stick the butter to the piston.

Step 3: Work

When the hammer is working, it should prevent empty hitting (which will cause the body, shell, big arm impact, leading to its failure), oblique hitting, it should be perpendicular to the hit object, otherwise the piston in the cylinder is not linear movement, resulting in scratches on the piston and cylinder.

4. Hydraulic oil

2000 hours to replace hydraulic oil, 500 hours to replace hydraulic return oil filter.

Precautions for the use of crushing hammer

The correct operation can improve the working efficiency of the crushing hammer and extend the service life of the crushing hammer. The operation precautions are as follows

1. Do not hit continuously, the drill rod and piston are easy to wear, and the hydraulic oil temperature is easy to be too high. Each strike is best controlled within 30 seconds, the longest is not more than 1 minute, a rock that can not be broken, to replace its striking position;

2. The beaten object that is not easy to break should be broken and stripped from the edge to the inside point by point;

3. Before working in water, it is necessary to be equipped with air pressure piping, and it is necessary to check whether the hydraulic oil is white;

4. Prevent the upper and lower dead point operation of the oil cylinder of the big arm of the excavator to avoid the failure of the oil cylinder;

5. Keep a certain distance between the guide sleeve and the object to avoid dust entering the inside of the crushing hammer;

6. Avoid burns, do not touch the drill rod after crushing operation;

7. Often check the floating amount of the drill rod, too large, to check the drill rod and its clearance;

8. In the crushing operation, it is necessary to check the jitter amplitude of the hose frequently. If the hose jitter is severe, stop the operation immediately and detect the high and low nitrogen pressure.

Storage of crushing hammer

1. When the crushing hammer is taken off the excavator for storage, in order to prevent rain from entering, the side of the rear cylinder body should be raised. It is best to store in a room with low humidity. If the hammer is not used for a long time, improper storage will lead to piston rust and oil leakage. When disassembling, the hydraulic system is immediately closed with a plug to prevent foreign matter from entering the hydraulic system.

2. Release nitrogen for long-term storage. Piston rust prevention measures: push all the effective stroke parts of the piston exposed into the cylinder body.

Steps:

Release the rear cylinder nitrogen;

Push the piston inwards with the ejector rod;

Apply anti-rust oil.

3. After removing the drill rod, often check the wear condition of the wearing parts in the lower cylinder body; And check the piston, drill rod hitting surface, drill rod, thrust ring seal cone.

Sum up

In summary, the crushing hammer is properly maintained, and the crushing operation is not so terrible, everything lies in the usual maintenance and maintenance.

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