CN201521250U - Rotary drilling bit for rotary drilling rig - Google Patents
Rotary drilling bit for rotary drilling rig Download PDFInfo
- Publication number
- CN201521250U CN201521250U CN2009202390321U CN200920239032U CN201521250U CN 201521250 U CN201521250 U CN 201521250U CN 2009202390321 U CN2009202390321 U CN 2009202390321U CN 200920239032 U CN200920239032 U CN 200920239032U CN 201521250 U CN201521250 U CN 201521250U
- Authority
- CN
- China
- Prior art keywords
- rotary drilling
- cutter
- cutter hub
- tooth
- bit
- 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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- Earth Drilling (AREA)
Abstract
The utility model discloses a rotary drilling bit for a rotary drilling rig, which belongs to a cutter. The rotary drilling bit structurally comprises a cutter shoulder portion, a cutter handle portion, a opening sleeve clamping spring and a hard alloy head portion, a step is arranged at the cutter handle portion on the upper portion of the opening sleeve clamping spring, an elastic gasket is arranged on the outer periphery of the step, a clearance is formed between the elastic gasket and the cutter handle portion, the cutter shoulder portion is provided with a plurality of ribs, and the ribs are higher than the cutter shoulder portion. Compared with the prior art, the rotary drilling bit for a rotary drilling rig has the advantages of long service life, fine rock crushing effect, fast drilling speed, protecting a bit base and the like, thereby having fine popularization and application value.
Description
Technical field
The utility model relates to a kind of cutter, is that a kind of rotary drilling rig digs tooth with revolving.
Background technology
At present, the structure that digs tooth that revolves of domestic widely used rotary drilling rig is the open sleeve jump ring to be snapped in revolve in the jump ring groove that digs tooth, will dig tooth pressure with revolving of jump ring then and go into to be welded in advance in the toothholder of drill bit of augers or other shape.Drill bit is to rotate to move downward under the drive of rig in soil; be contained in silt that the pick in the toothholder is easy to be rotated and enter stuck can not the rotation behind the toothholder; cause the head single face of pick to be ground off rapidly, the protection in tooth storehouse is very fast takes off from body because of the part loses to make alloy in the tooth storehouse.And because of a large amount of silts rub in the outside and endoporus at toothholder, the toothholder endoporus is become greatly, very quick-wearing attenuation of outside makes the weakened of toothholder and scraps very soon, makes rig not have cutting power at last.Tooth and toothholder are dug in revolving of having to exert more to renew, and increase use cost.
The utility model content
Technical assignment of the present utility model is to provide a kind of rotary drilling rig to dig tooth with revolving at above-mentioned deficiency of the prior art, this kind revolves to dig to have had when tooth uses in rotary drilling rig to avoid revolving and digs tooth and enter behind the toothholder stuck, the wearing and tearing of toothholder have been avoided, revolve that to dig the tooth rock breaking efficiency good, rate of penetration is fast, increases to revolve the application life of digging tooth and toothholder.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises cutter hub shoulder, cutter hub shank, open sleeve jump ring and carbide alloy head, cutter hub shank on open sleeve jump ring top is provided with a step, described step outer periphery is equipped with elastomeric pad, described elastomeric pad and cutter hub shank leave the space, described cutter hub shoulder is provided with many muscle ribs, and described muscle rib is higher than the cutter hub shoulder.
A kind of rotary drilling rig of the present utility model digs tooth and compares with prior art with revolving, has following outstanding beneficial effect: after having increased elastomeric pad, avoided revolving and dug tooth and enter behind the toothholder stuck, when running into the hard rock stratum, can cushion impact simultaneously to the carbide alloy head, that protection carbide alloy head is difficult for is broken, can also block silt enters the toothholder endoporus and prevents that the toothholder outside is by broken sandstone wearing and tearing attenuation, increased the application life of toothholder, make many muscle ribs revolving the cutter hub shoulder that digs tooth, muscle rib and revolve that to dig the serrated knife body be forging forming, not an easy fracture; The active force that the rock stratum produces when utilizing rig to drive the drill bit rotary cutting acts on the muscle rib and makes to revolve and dig tooth and be forced to do the rotation circular motion; prevent from like this to revolve and dig tooth denticle eccentric wear; improved greatly and revolved the application life of digging the tooth denticle; protect carbide alloy head difficult drop-off simultaneously, revolve the drilling efficiency and the life-span of digging tooth thereby improve.
Description of drawings
Accompanying drawing 1 is that a kind of rotary drilling rig is with revolving the structural representation that digs tooth;
Description of reference numerals: 1, cutter hub shoulder, 2, elastomeric pad, 3, the open sleeve jump ring, 4, the cutter hub shank, 5, toothholder, 6, the carbide alloy head, 7, the muscle rib, 8, step.
The specific embodiment
Dig tooth and explain below doing with revolving with reference to 1 pair of a kind of rotary drilling rig of the present utility model of Figure of description.
A kind of rotary drilling rig of the present utility model digs tooth with revolving; its structure comprises cutter hub shoulder 1; cutter hub shank 4; open sleeve jump ring 3 and carbide alloy head 6; cutter hub shank 4 on open sleeve jump ring 3 tops is provided with a step 8; described step 8 outer periphery are equipped with elastomeric pad 2; elastomeric pad 2 covers on toothholder 5; can block silt at toothholder 5 inner orifice places enters and prevents that toothholder 5 outsides from directly being worn and torn by rubble; effectively toothholder 5 is protected; described elastomeric pad 2 leaves the space with cutter hub shank 4; when running into the hard rock stratum, can cushion the impact of rock simultaneously to carbide alloy head 6; protection carbide alloy head 6 is difficult for broken; revolve the application life of digging tooth thereby improve greatly; described cutter hub shoulder 1 is provided with many muscle ribs 7; described muscle rib 7 is higher than the cutter hub shoulder; muscle rib 7 is forging forming, not an easy fracture with cutter hub shoulder 1.
The active force that the rock stratum produces during the drill bit rotary cutting under rig drives acts on muscle rib 7 and makes to revolve and dig tooth and be forced to do the rotation circular motion; the protection cutter hub is not by eccentric wear; thereby protection carbide alloy head 6 difficult drop-offs have improved greatly and have revolved the application life of digging tooth, have improved drilling efficiency.
Except that the described technical characterictic of manual, be the known technology of those skilled in the art.
Claims (1)
1. a rotary drilling rig digs tooth with revolving, comprise cutter hub shoulder, cutter hub shank, open sleeve jump ring and carbide alloy head, it is characterized in that: the cutter hub shank on open sleeve jump ring top is provided with a step, described step outer periphery is equipped with elastomeric pad, described cutter hub shoulder is provided with many muscle ribs, and described muscle rib is higher than the cutter hub shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202390321U CN201521250U (en) | 2009-09-28 | 2009-09-28 | Rotary drilling bit for rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202390321U CN201521250U (en) | 2009-09-28 | 2009-09-28 | Rotary drilling bit for rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521250U true CN201521250U (en) | 2010-07-07 |
Family
ID=42507426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202390321U Expired - Fee Related CN201521250U (en) | 2009-09-28 | 2009-09-28 | Rotary drilling bit for rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521250U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604488A (en) * | 2016-03-12 | 2016-05-25 | 中天建设集团有限公司 | Cutting pick type drill bit |
| CN108412428A (en) * | 2018-04-03 | 2018-08-17 | 浏阳湘德机械制造厂 | A kind of rotary digging tooth of Spiral digging machine |
| CN112943277A (en) * | 2021-03-19 | 2021-06-11 | 苏燕 | Novel rotary digging tooth of shield machine |
-
2009
- 2009-09-28 CN CN2009202390321U patent/CN201521250U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604488A (en) * | 2016-03-12 | 2016-05-25 | 中天建设集团有限公司 | Cutting pick type drill bit |
| CN108412428A (en) * | 2018-04-03 | 2018-08-17 | 浏阳湘德机械制造厂 | A kind of rotary digging tooth of Spiral digging machine |
| CN112943277A (en) * | 2021-03-19 | 2021-06-11 | 苏燕 | Novel rotary digging tooth of shield machine |
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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: 20100707 Termination date: 20180928 |