CN2415151Y - Steel tooth cutting structure of cone bit - Google Patents
Steel tooth cutting structure of cone bit Download PDFInfo
- Publication number
- CN2415151Y CN2415151Y CN 99245245 CN99245245U CN2415151Y CN 2415151 Y CN2415151 Y CN 2415151Y CN 99245245 CN99245245 CN 99245245 CN 99245245 U CN99245245 U CN 99245245U CN 2415151 Y CN2415151 Y CN 2415151Y
- Authority
- CN
- China
- Prior art keywords
- tooth
- steel
- hard alloy
- alloy blocks
- cutting structure
- 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 - Lifetime
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Abstract
The utility model relates to a steel tooth cutting structure of a cone bit, which is mainly composed of hard alloy blocks and steel teeth. The steel tooth cutting structure of a cone bit is characterized in that the tooth surfaces of the steel teeth are welded with the hard alloy blocks, and the hard alloy blocks and the steel teeth are connected in the welding mode. The hard alloy blocks which have main cutting functions are more compact than build-up welding layers in the prior art. The defects of easy erosion, easy spalling, etc. of the deposit welding layer in the prior art are overcome. The steel tooth cutting structure of a cone bit has good erosion resistant performance and abrasion resistant performance and is a novel cutting structure of a steel tooth cone bit. The utility model is also suitable for a mixed cone bit which comprises steel teeth and inlaid teeth.
Description
The utility model relates to a kind of rock bit that is used for oil, natural gas, mining.
At present, no matter be domestic or external rock bit manufacturer, the tooth-face strengthening method of steel tooth bit is to be to carry out built-up welding at the flank of tooth to handle with wear resistance electrode, attrition resistant materials in the welding rod is uniformly distributed in the overlay cladding, steel tooth bit mainly relies on this layer wearing layer and cuts the stratum when underground work.Because the erosion effect of shaft bottom mud, the bonding in the overlay cladding be mutually very easily by erosion, and attrition resistant materials (tungsten carbide or diamond particles) lost rely on and come off, the life-span of tooth is reduced, thereby cause the life-span of whole drill bit to descend.Owing to apply not of uniform size the causing of profile of tooth of postwelding, cause actual profile of tooth and design tooth profile inconsistent, the intended purposes in the time of can not reaching product design, and cause stock-removing efficiency to reduce easily.
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of steel tooth cutting structure of rock bit to be provided, thereby improves the application life of rock bit, improves the stock-removing efficiency of drill bit, reaches the requirement of product design.
The utility model is to be achieved by following technical proposals:
Steel tooth cutting structure described in the utility model mainly is made up of steel-tooth and hard alloy blocks, is welded with hard alloy blocks on the flank of tooth of steel-tooth.Mode by soldering between hard alloy blocks and the steel-tooth is connected.Hard alloy blocks can be connected with any one or several in main cutting face, assisted machining face and the tooth top of the flank of tooth.And hard alloy blocks is consistent with the shape size of the corresponding flank of tooth.
Compared with prior art, the utlity model has following beneficial effect:
After the utility model is implemented,, therefore can improve the abrasion-resistance and the mar proof of the gear wheel flank of tooth effectively because it is finer and close than overlay cladding of the prior art to play the hard alloy blocks of main shear action, thus the application life of improving drill bit; And steel-tooth is in the course of the work along with the wearing and tearing of steel-tooth matrix material, and steel-tooth can be more and more sharp-pointed, and therefore this structure can reach the requirement of product design, can improve bit cutting efficient again.
Be illustrated below in conjunction with drawings and Examples.
Fig. 1 is a steel-tooth main cutting face soldering hard alloy blocks;
Fig. 2 is steel-tooth main cutting face and the assisted machining face soldering hard alloy blocks relative with main cutting face;
Fig. 3 is each face soldering hard alloy blocks of steel-tooth.
In the accompanying drawing: 1, hard alloy blocks; 2, steel-tooth; 3, main cutting face;
4,5,6, assisted machining face; 7, tooth top
Embodiment 1: at first will fix by anchor clamps with the shape of steel-tooth main cutting face 3 hard alloy blocks 1 of the same size, steel-tooth 2, and carry out soldering again.So just can be on the main cutting face 3 of steel-tooth soldering lastblock hard alloy blocks 1.This hard alloy blocks 1 is finer and close than overlay cladding of the prior art, therefore can improve the abrasion-resistance and the mar proof of the gear wheel flank of tooth effectively, thus the application life of improving drill bit; Again because hard alloy blocks 1 is consistent with the profile of tooth of steel-tooth 2, and steel-tooth is in the course of the work along with the wearing and tearing of steel-tooth matrix material, and steel-tooth can be more and more sharp-pointed, so this structure can reach the requirement of product design, can improve bit cutting efficient again.Embodiment 2: at first will be, fix by anchor clamps with steel-tooth 2 with the shape of steel-tooth main cutting face 3, assisted machining face 6 hard alloy blocks 1 of the same size, carry out soldering again.So just can be on the main cutting face 3 of steel-tooth and assisted machining face 6 soldering lastblock hard alloy blocks 1.This hard alloy blocks 1 is finer and close than overlay cladding of the prior art, therefore can improve the abrasion-resistance and the mar proof of the gear wheel flank of tooth effectively, thus the application life of improving drill bit; Because hard alloy blocks 1 is consistent with the profile of tooth of steel-tooth 2, therefore this structure can satisfy the requirement of product design well again.Embodiment 3: at first will fix by anchor clamps with the shape hard alloy blocks 1 of the same size of each face 3,4,5,6,7 of steel-tooth, steel-tooth 2, and carry out soldering again.So just can be on the flank of tooth of steel-tooth soldering lastblock hard alloy blocks 1.This hard alloy blocks 1 is finer and close than overlay cladding of the prior art, therefore can improve the abrasion-resistance and the mar proof of the gear wheel flank of tooth effectively, thus the application life of improving drill bit; Because hard alloy blocks 1 is consistent with the profile of tooth of steel-tooth 2, therefore this structure can satisfy the requirement of product design well again.
Claims (4)
1, a kind of steel tooth cutting structure of rock bit mainly is made up of steel-tooth (2) and hard alloy blocks (1), it is characterized in that being welded with on the flank of tooth of steel-tooth (2) hard alloy blocks (1).
2, steel tooth cutting structure according to claim 1 is characterized in that: the mode by soldering between hard alloy blocks (1) and the steel-tooth (2) is connected.
3, steel tooth cutting structure according to claim 1 is characterized in that: the flank of tooth comprises main cutting face (3), assisted machining face (4) (5) (6) and tooth top (7), and hard alloy blocks can be connected with any one or several of the flank of tooth.
4, steel tooth cutting structure according to claim 3 is characterized in that: hard alloy blocks is consistent with the shape size of the corresponding flank of tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99245245 CN2415151Y (en) | 1999-11-04 | 1999-11-04 | Steel tooth cutting structure of cone bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99245245 CN2415151Y (en) | 1999-11-04 | 1999-11-04 | Steel tooth cutting structure of cone bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2415151Y true CN2415151Y (en) | 2001-01-17 |
Family
ID=34031186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99245245 Expired - Lifetime CN2415151Y (en) | 1999-11-04 | 1999-11-04 | Steel tooth cutting structure of cone bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2415151Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117967202A (en) * | 2024-03-29 | 2024-05-03 | 西南石油大学 | Tricone steel inlaid hybrid drill bit |
-
1999
- 1999-11-04 CN CN 99245245 patent/CN2415151Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117967202A (en) * | 2024-03-29 | 2024-05-03 | 西南石油大学 | Tricone steel inlaid hybrid drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |