What are the common wrong operations of the crushing hammer?

[DIG-DOG]

As one of the most common accessories in construction machinery, hydraulic crushing hammer has been widely used in mining, railway, highway, municipal and other work occasions. As we all know, the hydraulic crushing hammer in the daily work are "hard bones" working environment poor conditions, grasp the correct crushing hammer use method, not only can improve work efficiency, but also greatly extend the service life, reduce the frequency of failure. Today, summed up a few points of the correct operation of the hammer, here to share with you.

First, the selection of crushing hammer
We first start with the selection of the crushing hammer, under normal circumstances, the main consideration of the user's choice of crushing hammer is the matching of the working weight of the hammer and the carrying machine. Here Xiaobian reminds you that the selection of the crushing hammer should not only match the working weight, but also pay attention to the output flow and pressure matching problem of the standby valve of the hydraulic hammer.

Generally speaking, the flow of the hydraulic hammer determines its work efficiency (that is, the number of impacts per minute, the flow is proportional to the number of impacts), if the load bearing machine flow and working pressure is greater than the needs of the hydraulic hammer, the relief valve needs to undertake heavy shunt unloading work. When the hammer is working under ultra-high pressure, it will cause pipe rupture, local overheating of hydraulic oil, and cause serious wear of the reversing valve, which seriously affects the service life of the hydraulic components.

Second, the use of crushing hammer
1. Check the appearance of the crushing hammer before operation
Check the gap between the drill rod and its bushing and see if hydraulic oil is leaking out. Once the hydraulic oil leakage of the hammer is found, the damaged seal ring should be replaced immediately. Check whether the bolts are loose or fall off, and tighten or replace them if necessary.

2. Lubrication before/during crushing hammer operation
The crushing hammer should be lubricated before operation and within 2-3 hours of continuous operation. When hitting the butter, the hammer should be placed vertically, the fiber rod should be compacted, and it should not be suspended, so as to avoid the butter entering the hydraulic system. It should be noted that the butter injection should not be too much, too much will stick to the piston, and the butter is easy to enter the hydraulic system when working again.
3, crushing operation to use the appropriate breakdown force

Crushing operation should use the appropriate breakdown force. If the breakdown force is insufficient, the hammer energy of the piston will not be effective in crushing the stone, so that the reaction force of the hammer force will be transmitted to the hammer body and the bearing machine of the hammer, thus damaging these parts. If the breakdown force is too large, the machine may suddenly tilt at the gravel moment, and the crushing hammer will hit the stone violently, which will also cause damage to the crushing hammer. Therefore, during the crushing hammer operation, we should always pay attention to the breakdown force of the crushing hammer.

4. The crusher should maintain a 90° Angle with the material during operation
When crushing operation, the crushing hammer should be kept perpendicular to the material, and the drill rod should press the broken object tightly. If the hammer direction is inclined, the steel is easy to slip off during the hammer operation, which may cause the steel and piston to break or stick. Therefore, when performing crushing operations, the breakdown point should be selected to ensure that the crushing hammer and the material maintain a 90° Angle during the operation.

5, the crushing hammer in the crushing operation at a maximum of 30 seconds
Hydraulic hammer in the crushing operation, do not hit at the same point, when at the same point to hit more than 30 seconds and failed to break the target, please change the selected point to try again. When breaking particularly hard objects, start at the edges first. Repeated strikes at the same point will cause excessive loss of the drill rod and overheating of the hydraulic oil.

6, do not use the breaking hammer steel as a pry bar
When crushing operation, do not use the crushing hammer to move/pry the stone, which is easy to cause the breaking of the crushing hammer steel and damage to the support. When the steel is inserted in the stone, the excavator should not walk or swing the big arm!

7. It is strictly forbidden to hit empty when the crushing hammer is working
When the crushing hammer is working, please confirm the compaction object first. After the broken object is crushed, the hammering should be stopped immediately. Empty punching will cause the oil temperature to rise, the bolt will loosen or break, and even the crushing hammer carrier will be adversely affected.

8. It is strictly prohibited to use a crushing hammer for lifting operations
Crushing hammer In daily work, do not use the crushing hammer for lifting operations, this operation will cause damage to the hammer rod and support.

In SUMMARY:
The daily work of the crushing hammer is hard work, and a little carelessness will cause significant damage to it. If the crushing hammer can be used correctly, it can greatly extend its life. I hope that reading this article can help you!

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