Accumulator as an important accessory of hydraulic hammer, its role will be paid attention by hydraulic hammer users. A high quality crusher should have a high quality accumulator. So do you know the role of the accumulator of the hydraulic hammer?

The accumulator is filled with nitrogen gas, which is used to store the remaining energy and the energy of the piston recoil when the hydraulic hydraulic hammer strikes the previous time, and release the energy at the same time during the second strike to increase the striking power, usually the accumulator is installed when the hydraulic hammer itself cannot reach the striking energy to increase the striking power of the hydraulic hammer. Therefore, small hydraulic hammers usually have no accumulator, while medium and large hydraulic hammers are equipped with accumulator. Wangyuan crusher 155 or above is equipped with accumulator, 140 models have two types with and without accumulator.

The role of the accumulator is to store the pressure oil in the hydraulic system and release it again when needed to play a buffering role.

I. Can be used as an auxiliary force source

Some hydraulic system of the executive element is intermittent action, the total working time is very short, some hydraulic system of the executive element although not intermittent action, but in a work cycle (or a stroke within) the speed difference is very large. After setting the accumulator in this kind of system, you can use a smaller power excavator crusher to reduce the power of the main drive, so that the whole hydraulic system of small size, light weight and cheap.

2.Can be used as an emergency power source

For some system requirements when the excavator hammer failure or power failure (sudden interruption of the oil supply to the actuating element), the actuating element should be intermittent to complete the necessary action. For example, for safety reasons, the piston rod of the hydraulic cylinder must be retracted into the cylinder. On such occasions, an accumulator of appropriate capacity is required as an emergency power source.

3. Supplement leakage and maintain constant pressure

For the system where the actuator does not operate for a long time and the pressure is to be kept constant, an accumulator can be used to compensate for the leakage so that the pressure is constant.

4.Absorb hydraulic shock

Due to the reversing valve suddenly reversing, hydraulic broken hammer suddenly stop, the power of the actuating element suddenly stop, and even the artificial need for emergency braking of the actuating element, etc., will make a sharp change in the flow of liquid in the pipeline, and the impact pressure (oil strike). Although the system is equipped with a safety valve, but still inevitably produce a short period of pressure increase and shock. This impact pressure, often cause the system instrumentation, hydraulic hammer accessories and sealing device failure or even damage or pipe rupture, in addition to the system will produce significant vibration. If the crusher foot valve or hydraulic cylinder impact source before the installation of the accumulator, you can absorb and moderate the impact.

5. Absorb pulsation and reduce noise

The pulsating flow of the pump will cause pressure pulsation, so that the movement of the actuating element speed is not uniform, resulting in vibration, noise, etc.. In the pump outlet in parallel with a responsive and small inertia of the accumulator, you can absorb the flow and pressure pulsation, reduce noise.

Therefore, when using the hydraulic hammer, remember to pay attention to whether to add an accumulator? The accumulators equipped with Wangyuan hydraulic hammer are all of high quality!