http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103556952-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1185cabf1f6242a8db8f810ba86993cb |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-43 |
| filingDate | 2013-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e64aa077effb10c64da401cdca9f197f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_695b9699ebf77ae42650a2c6197fa9cb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1568f374e2a51f62a4007916e8d8a748 |
| publicationDate | 2015-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103556952-B |
| titleOfInvention | Rotary-tooth drilling bit |
| abstract | The invention discloses a rotary-tooth drilling bit which comprises a connector, a basal body, blades and cutting teeth, wherein the cutting teeth are arranged on the blade surfaces of the blades, the advancing direction of the drilling bit in use is taken as the front, each blade is provided with an inner cone part, a nose part and an outer cone part in sequence from a position of each front part blade surface, which is nearly close to the center of the end surface of the front end of the basal body, to each rear part blade surface; at least one rotary tooth is arranged on the blade surface of each blade, the rotary tooth is a cutting tooth capable of rotating around the self axle wire, and the rotary tooth is mounted inside a rotary tooth hole on the blade through a rotation device. According to the rotary-tooth drilling bit, through arranging at least one rotary tooth on the blade surface of each blade, the entire circumference of the cutting end surface of the rotary tooth is enabled to participate in cutting to stratum during the stratum cutting process through the drilling bit, the use ratio of the cutting end surface of the rotary tooth is improved, the service life of the drilling bit is prolonged greatly, the depth drilling capability of a single drilling bit is enhanced remarkably, the drilling speed of the drilling bit is kept to be higher, the drilling period is shortened, and the drilling cost is reduced. |
| priorityDate | 2013-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.