Title:
METHOD AND DEVICE FOR CONTROLLING IMPACT ENERGY OF ROCK DRILLING SYSTEM ACCORDING TO PROPULSIVE FORCE
Document Type and Number:
WIPO Patent Application WO/2015/067131
Kind Code:
A1
Abstract:
A method for controlling impact energy of a rock drilling system according to the propulsive force, the method comprising the following steps: S1, if the propulsive force is less than or equal to a set lower limit A1, then the impact energy remains at a set lower limit B1; S2, if the propulsive force is greater than the set lower limit A1 and less than a set upper limit A2, then the impact energy has positive linear change from the lower limit B1 as the propulsive force changes; S3, if the propulsive force is greater than or equal to the set upper limit A2, then the impact energy reaches and remains at a set upper limit B2. Also disclosed is a device implementing the method. The method and device for controlling impact energy of a rock drilling system according to propulsive force cause the impact energy to change linearly in the range from a lower limit to an upper limit, thus effectively protecting a rock drill.
Inventors:
TONG SHENGEN (CN)
WANG QIANG (CN)
JIAO DEYI (CN)
WANG QIANG (CN)
JIAO DEYI (CN)
Application Number:
PCT/CN2014/089624
Publication Date:
May 14, 2015
Filing Date:
October 28, 2014
Export Citation:
Assignee:
ATLAS COPCO NANJING CONSTRUCTION AND MINING EQUIPMENT LTD (CN)
International Classes:
E21B7/00; E21B44/00
Foreign References:
| CN1950586A | 2007-04-18 | |||
| CN102498261A | 2012-06-13 | |||
| CN203570200U | 2014-04-30 | |||
| CN103556943A | 2014-02-05 | |||
| CN102561936A | 2012-07-11 | |||
| CN202788599U | 2013-03-13 | |||
| US5348106A | 1994-09-20 |
Attorney, Agent or Firm:
KINGSOUND & PARTNERS (CN)
北京金信知识产权代理有限公司 (CN)
北京金信知识产权代理有限公司 (CN)
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