1. Structure of working device of hydraulic excavator: This patent relates to a structural system for controlling the work of oil hammer on hydraulic excavator, including pressure oil circuit and oil return oil circuit. It also includes the structure of pressure sensor and position sensor, which is used to protect and detect the additional oil hammer before loading.
2. Speed control method for hydraulic hammer of excavator: This patent describes a speed control method for hydraulic hammer of excavator, which controls digging and hitting by controlling the speed of hydraulic hammer moving up and down.
3. Structure of excavator bucket working device and excavator oil hammer: This patent describes the structure of excavator bucket working device and oil hammer, which can reduce oil consumption, shorten working cycle and labor intensity, and achieve better working efficiency and performance.
Some common patent forms of excavator oil hammer, of course, with the continuous development of technology and market, more innovative and practical patent forms may appear in the future.