Hydraulic breakers, commonly used as attachments for heavy machinery like excavators, are primarily used for breaking up rocks and concrete. Based on the search results, the classification and selection methods for hydraulic breakers are as follows:
1. Classification:
- By Operation Mode: Divided into handheld and machine-mounted types.
- By Working Principle: Divided into fully hydraulic, hydraulic-pneumatic combined, and nitrogen explosion types.
- By Valve Structure: Divided into built-in valve and external valve types.
- Other Classification Methods: Such as by feedback method into stroke feedback and pressure feedback types; by noise level into low-noise and standard types; by shell shape into triangular and tower shapes; by shell structure into clamp plate and box frame types.
2. Selection Methods:
- Consider the Weight and Bucket Volume of the Excavator: Ensure that the weight of the breaker matches the excavator to avoid tipping or affecting efficiency.
- Consider the Working Flow and Pressure of the Breaker: Ensure it matches the output flow of the excavator's auxiliary valve to avoid generating excessive heat or reducing the lifespan of components.
- Consider the Structural Design of the Breaker Mount: Such as triangular, right-angle, and silent types, choose the type suitable for the working conditions.
- Choose the Suitable Model Based on the Working Environment and Needs: For example, thicker or harder materials may require a breaker with a larger chisel diameter and higher striking frequency.
- Consider the Maintenance and Cost of the Breaker: Breakers without accumulators have a simple structure, fewer faults, easier maintenance, and lower costs.
When choosing the right hydraulic breaker, it is also necessary to consider factors such as the source of impact energy, the stroke of the piston and cylinder, material, and manufacturing process to ensure that the performance of the breaker meets the needs of specific working conditions.