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Structure and Working Principle of Hydraulic Breaker

Release time:2021-12-07      Number of views :1061


Structure and Working principle

Model: 45/53/68/75/85/100 /140/140A/155/165/165F/175 (Inward value type)

微信图片_20211207103008.png

1) Cylinder 

This contains the moving piston which strikes the tool. The seals for both ends of the piston are also located in the cylinder. The seals for the upper end of the piston are located in a removable seal retainer while the seals for the lower end of the piston are located in proves machined directly into the cylinder.


2) Piston 

The piston transfers impact power to the tool, generated by hydraulic power. 


3) Seal retainer 

The seal retainer has oil seals to seal Nitrogen(N2) gas in back head, and to prevent hydraulic oil leakage. 


4) Valve 

The valve controls reciprocates piston action with hydraulic fluid distribution. 5) Front head assembly This retains the tools, using the tool pins. By removing these pins, the tool can be changed.


6) Ring Bush 

This guides the tool, Ring Bush limits the uppermost position of the tool. It is consumable parts, which should be checked for wear limits. If needed, they should be replaced. 


7) Tool 

This transfers piston impact power to the objects. We recommend that various tool shapes according to working circumstance. 


8) Rod Pin 

This is installed on the front head, and prevents the tool from coming off. 


9) Back head assembly 

This contains the cushion chamber charged with Nitrogen(N2) gas that is compressed during upward strokes of the piston, and serves to provide maximum absorption recoil, efficiency storing this energy for the next blow. 


10) Through bolts 

These are used to assemble the front head, the cylinder and the back head. They have to be constantly tightened to specified torque. Inspect the bolts for loosening, and retighten them weekly


Model: 135/ 150 (Outward value type)

微信图片_20211207110900.png


1) Cylinder assembly 

This contains the moving piston which strikes the tool. The seals for both ends of the piston are also located in the cylinder. The seals for the upper end of the piston are located in a removable seal retainer while the seals for the lower end of the piston are located in proves machined directly into the cylinder. 


2) Piston 

The piston transfers impact power to the tool, generated by hydraulic power. 


3) Seal retainer 

The seal retainer has oil seals to seal Nitrogen(N2) gas in back head, and to prevent hydraulic oil leakage. 


4) Valve housing 

This guided the main valve movement. 


5) Valve 

The valve controls reciprocates piston action with hydraulic fluid distribution. 


6) Valve adjuster 

When the base machine supplies insufficiently hydraulic oil to hydraulic breakerthis valve adjuster can obtain the rated working pressure by reducing number of blows, and in the reverse, when excessive oil flow from base machine, the increasing number of blows, by this valve adjuster, can keep the rated working pressure. 


7) Cylinder adjuster 

Turn the setting screw clockwise to decrease rate of hydraulic breaker, counterclockwise to increase blows rate of hydraulic breaker. 


8) Accumulator assembly 

The accumulator is a gas charged storage device designed to hold a reserve quantity of hydraulic fluid under pressure. In a hydraulic circuit, minor variations or lags in pump output that might otherwise cause unsteady or irregular operation are made up from the supply of pressurized oil in the accumulator. Accumulator is solidly constructed to resist high operating pressure.


9) Front head assembly 

This retains the tools, using the tool pins. By removing these pins, the tool can be changed. 


10) Ring Bush 

This guides the tool, Ring Bush limits the uppermost position of the tool. It is consumable parts, which should be checked for wear limits. If needed, they should be replaced. 


11) Tool 

This transfers piston impact power to the objects. We recommend that various tool shapes according to working circumstance. 


12) Rod Pin 

This is installed on the front head, and prevents the tool from coming off. 


13) Back head assembly 

This contains the cushion chamber charged with Nitrogen(N2) gas that is compressed during upward strokes of the piston, and serves to provide maximum absorption recoil, efficiency storing this energy for the next blow. 


14) Through bolts 

These are used to assemble the front head, the cylinder and the back head. They have to be constantly tightened to specified torque. Inspect the bolts for loosening, and retighten them weekly


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