Self-propelling crusher
US7318463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Jun 30, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C21/026
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A self-propelled crushing machine comprises a crushing device 20; a hydraulic drive system including a crushing device hydraulic motor 21 for driving the crushing device 20, a first hydraulic pump 62 for driving the crushing device hydraulic motor 21, and an engine 61 for driving the first hydraulic pump 62; a pressure sensor 151 for detecting a load condition of the crushing device 20; and a controller 84″ for executing control to increase a revolution speed of the engine 61 in accordance with a detected signal from the pressure sensor 151. Accordingly, even when a heavy load is imposed on the crushing device, a reduction of crushing efficiency can be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.