CN202767886U - Nozzle holder with changeable nozzle core for roller bit - Google Patents
Nozzle holder with changeable nozzle core for roller bit Download PDFInfo
- Publication number
- CN202767886U CN202767886U CN 201220361669 CN201220361669U CN202767886U CN 202767886 U CN202767886 U CN 202767886U CN 201220361669 CN201220361669 CN 201220361669 CN 201220361669 U CN201220361669 U CN 201220361669U CN 202767886 U CN202767886 U CN 202767886U
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- CN
- China
- Prior art keywords
- nozzle
- core
- nozzle holder
- hole
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a nozzle holder with a changeable nozzle core for a roller bit. The nozzle holder is used in the roller bit and comprises a drill bit body which is provided with jet holes. The jet holes comprise a large hole and a small hole. The small hole is used for dreg discharging. The large hole is provided with the nozzle holder. A clamping spring groove is arranged on the side wall of the nozzle holder along the periphery direction. The clamping spring groove is matched with a spring clamping ring. The nozzle core is arranged inside the nozzle holder and is fixed through the spring clamping ring. According to the nozzle holder with the changeable nozzle core for the roller bit, the dreg discharging hole is not overlapped with the mounting position of a nozzle, blocking is not easy, the nozzle holder and the nozzle core are formed independently, when the nozzle needs to be changed, only the nozzle core needs to be dismantled, assembling and disassembling are convenient, operation is easy, the wastage of the nozzle is low, and service life is long.
Description
Technical field
The utility model relates to a kind of mining nozzle carrier, particularly a kind of nozzle carrier for rock bit interchangeable nozzles core.
Background technology
Mine boring will be used mining cone bit mostly, and the compressed air deslagging that this kind drill bit all adopts the rig air compressor machine to provide namely uses enough air quantity with the rock slag delivery port of bottom, big gun hole.The mine is different with the rig model, and corresponding each rig air compressor machine blast is also different.Because the mud hole diameter of all drill bits all is unified, in the situation that the mud hole diameter is fixing, the rig that blast is little, pressure of bailing air is inadequate, can't be with bottom, big gun hole rock slag delivery port, the rig that blast is large, mud hole occurs and suppress the wind phenomenon, easily cause the rig air compressor machine to damage.Therefore drill bit is shorter average life.And the nozzle of drill bit and nozzle carrier are one-body molded in the prior art, will dismantle together with nozzle carrier when need changing, install also inconvenient, cause indulge in man-hour etc. stagnant.
The utility model content
For the problem that prior art exists, the utility model aims to provide a kind of residue-discharge convenience, changes nozzle easily and the nozzle carrier that is used for rock bit interchangeable nozzles core of long service life.
Be achieved through the following technical solutions:
The utility model provides a kind of nozzle carrier for rock bit interchangeable nozzles core, be used for rock bit, comprise drill body, described drill body is provided with spray-hole, and described spray-hole is comprised of macropore and aperture, described aperture is used for deslagging, on the described macropore nozzle carrier is installed, is provided with in the circumferential direction of the circle jump-ring slot on the sidewall of described nozzle carrier, described jump-ring slot and spring arch clasp are supporting, nozzle core is installed in the described nozzle carrier, and fixes with described spring arch clasp.
Staggering in described nozzle carrier mud hole and nozzle installation site for rock bit interchangeable nozzles core of the present utility model, is difficult for stopping up; Nozzle carrier and the moulding of nozzle core independence when needing to change nozzle, only need to get final product the nozzle core dismounting, and installation and removal are convenient, and are simple to operate, and the loss of nozzle is little, long service life.
Description of drawings
Fig. 1 is the structural representation of a kind of nozzle carrier for rock bit interchangeable nozzles core that the utility model proposes;
Fig. 2 is the structural representation of nozzle carrier among Fig. 1;
Fig. 3 is the structural representation of nozzle core among Fig. 1.
The drawing reference numeral explanation
1 drill body
2 nozzles
3 nozzle carriers
4 nozzle cores
The specific embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment:
Please refer to Fig. 1, Fig. 2 and Fig. 3, a kind of nozzle carrier for rock bit interchangeable nozzles core that provides for the utility model, be used for rock bit, comprise drill body 1 and nozzle 2, described nozzle comprises nozzle carrier 3 and nozzle core 4, described drill body is provided with spray-hole (not shown), described spray-hole is comprised of macropore and aperture, described aperture is used for deslagging, nozzle carrier 4 is installed on the described macropore, is provided with in the circumferential direction of the circle jump-ring slot (not shown) on the sidewall of described nozzle carrier 4, described jump-ring slot and spring arch clasp (not shown) are supporting, described nozzle core 4 is installed in 3 li of described nozzle carriers, and fixes with described spring arch clasp.
Staggering in described nozzle carrier mud hole and nozzle installation site for rock bit interchangeable nozzles core of the present utility model, is difficult for stopping up; Nozzle carrier 3 and nozzle core 4 independent moulding when needing to change nozzle, only need to get final product the nozzle core dismounting, and installation and removal are convenient, and are simple to operate, and the loss of nozzle is little, long service life.
The above has carried out exemplary description to the utility model by reference to the accompanying drawings; obvious realization of the present utility model is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solutions of the utility model to carry out; or without improving design of the present utility model and technical scheme are directly applied to other occasion, all in protection domain of the present utility model.
Claims (1)
1. nozzle carrier that is used for rock bit interchangeable nozzles core, be used for rock bit, comprise drill body, it is characterized in that, described drill body is provided with spray-hole, described spray-hole is comprised of macropore and aperture, and described aperture is used for deslagging, on the described macropore nozzle carrier is installed, be provided with in the circumferential direction of the circle jump-ring slot on the sidewall of described nozzle carrier, described jump-ring slot and spring arch clasp are supporting, and nozzle core is installed in the described nozzle carrier, and fix with described spring arch clasp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361669 CN202767886U (en) | 2012-07-25 | 2012-07-25 | Nozzle holder with changeable nozzle core for roller bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220361669 CN202767886U (en) | 2012-07-25 | 2012-07-25 | Nozzle holder with changeable nozzle core for roller bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202767886U true CN202767886U (en) | 2013-03-06 |
Family
ID=47774469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220361669 Expired - Fee Related CN202767886U (en) | 2012-07-25 | 2012-07-25 | Nozzle holder with changeable nozzle core for roller bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202767886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020062741A1 (en) * | 2018-09-26 | 2020-04-02 | 西南石油大学 | Efficient composite drill bit suitable for deep well stratum difficult to drill |
-
2012
- 2012-07-25 CN CN 201220361669 patent/CN202767886U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020062741A1 (en) * | 2018-09-26 | 2020-04-02 | 西南石油大学 | Efficient composite drill bit suitable for deep well stratum difficult to drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20170725 |