http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-203248078-U
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c860c0fe21a8ff1ca8f3234bf1f60628 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B10-50 |
| filingDate | 2013-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_583a416f91ce21a87cba3ca95f177dbd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c90fc3b4966c0075f319b778c20e181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e793b16eb3f68752d20c26d55ebda3cf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bb4c5764df80bc255ae12810c493e19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67e5d8dbba3a620ac74043abd1151d1b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05de1914f5e4cba25bd914509498868b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec64dcdadc4a279c0e003638305aa8da |
| publicationDate | 2013-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-203248078-U |
| titleOfInvention | Disc insert cone bit |
| abstract | The utility model discloses a disc insert roller bit, and belongs to the technical field of drilling equipment of petroleum and gas, mine engineering, building fundamental engineering construction, geology, hydrology and the like, and particularly relates to cone bits. The disc insert cone bit comprises a bit body and at least one cone, transversely embedded teeth are embedded and fixed on the cone, the value range of the tooth crest deflection angle alpha of the transversely embedded teeth satisfies the condition that the absolute value of the alpha is larger than or equal to 70 degrees and smaller than or equal to 90 degrees, the embedding and fixing portions of the transversely embedded teeth are columns with non-circular cross sections. The disc insert roller bit proposes a novel structural style, under the structural style, the teeth act on rock in a well bottom in a rolling compaction and splitting mode, and particularly has unique advantages for drilling of hard brittle stratums and hard non-abrasive stratums, relative high rock breaking efficiency of the bit is guaranteed, the service life of bit teeth and the service life of bearings are prolonged, and the service life of the bit is further prolonged. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103132911-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103132911-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109386236-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109386236-A |
| priorityDate | 2013-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7753 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419514609 |
Total number of triples: 24.