CN202913954U - Tooth claw of mining tricone bit - Google Patents
Tooth claw of mining tricone bit Download PDFInfo
- Publication number
- CN202913954U CN202913954U CN 201220606404 CN201220606404U CN202913954U CN 202913954 U CN202913954 U CN 202913954U CN 201220606404 CN201220606404 CN 201220606404 CN 201220606404 U CN201220606404 U CN 201220606404U CN 202913954 U CN202913954 U CN 202913954U
- Authority
- CN
- China
- Prior art keywords
- tooth
- tooth claw
- tricone bit
- mining
- 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 - Lifetime
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Abstract
The utility model belongs to the technical field of mining tricone bits, and particularly relates to a tooth claw of a mining tricone bit. The tooth claw of the mining tricone bit comprises a tooth claw body, a tooth claw shaft neck on the tooth claw body and a tooth wheel connected with the tooth claw shaft neck through a bearing set. The tooth claw of the mining tricone bit is characterized in that a positioning groove is arranged in the inner side of the tooth wheel, and a main bearing part of the bearing set is arranged in the positioning groove and is connected with the tooth claw shaft neck. According to the tooth claw of the mining tricone bit, a prior positioning groove of the shaft neck is cancelled, positioning is achieved through the main bearing part on the tooth wheel, the problem of fracture due to the fact that a prior tooth claw shaft neck is excessively thin is effectively is solved, the service life of the tricone bit is prolonged, average footage (meter) rate of the tricone bit is increased by about 5%, and operating cost of an enterprise is reduced.
Description
Technical field
The utility model belongs to the blasthole tricone rock bit technical field, especially relates to a kind of tooth pawl for blasthole tricone rock bit.
Background technology
Blasthole tricone rock bit is widely used in the exploitation on metal and nonmetal deposits mountain, is the larger a kind of drill bit kind of consumption.The tooth pawl of general tricone bit is connected connection with gear wheel be to rely on bearing assembly that gear wheel is connected with the axle journal position of tooth pawl.Base bearing spare wherein is to position by machined grooves on gear claw journal.Because the setting of gear claw journal body upper groove attenuates gear claw journal, causes insufficient strength, supporting capacity is not enough, the phenomenon that gear claw journal fractures in use often occurs, and directly affects the application life of rock bit.In order to solve this technical barrier, normally consider to increase the diameter of axle of gear claw journal, but because the rock bit intracavity space is narrow and small, do not have the space of overstriking axle journal, therefore, this problem can not get solving always.
Summary of the invention
The purpose of this utility model provides a kind of tooth pawl for blasthole tricone rock bit, can overcome the phenomenon that fractures that existing tooth pawl causes because axle journal is meticulous, prolongs the application life of tricone bit.
The purpose of this utility model realizes by following technical proposals:
Tooth pawl for blasthole tricone rock bit of the present utility model, comprise the tooth pawl, be located at the gear claw journal on this tooth pawl, the gear wheel that is connected by bearing group of gear claw journal therewith, it is characterized in that described gear wheel inboard is provided with locating slot, base bearing spare in the described bearing group is located in the described locating slot, and is connected with described gear claw journal.
Advantage of the present utility model:
The utility model is by the detent of the original axle journal of cancellation, and by on gear wheel, base bearing spare being positioned, efficiently solve the phenomenon that fractures that causes because original gear claw journal is meticulous, improved the application life of tricone bit, average bit footage (rice) rate improves about 5%, has reduced operation cost of enterprises.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the left view of the utility model Fig. 1.
The specific embodiment
Further specify the specific embodiment of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, 2, a kind of tooth pawl for blasthole tricone rock bit, comprise tooth pawl 1, be located at the gear claw journal 2 on this tooth pawl 1, the gear wheel 4 that is connected by bearing group of gear claw journal 2 therewith, it is characterized in that described gear wheel 4 inboards are provided with locating slot 5, the base bearing spare 3 in the described bearing group is located in the described locating slot 5, and is connected with described gear claw journal 2.
The utility model has been cancelled the detent of original gear claw journal 2, the inboard of changing into gear wheel 4 arranges the detent 5 of base bearing spare 3, make the weak part chap of original groove of gear claw journal 2, increased the bending resistance rupture strength of gear claw journal 2, efficiently solve because of original gear claw journal 2 meticulous phenomenons that fracture that cause, improved the application life of tricone bit, average bit footage (rice) rate improves about 5%, has reduced operation cost of enterprises.
Claims (1)
1. tooth pawl that is used for blasthole tricone rock bit, comprise the tooth pawl, be located at the gear claw journal on this tooth pawl, the gear wheel that is connected by bearing group of gear claw journal therewith, it is characterized in that described gear wheel inboard is provided with locating slot, base bearing spare in the described bearing group is located in the described locating slot, and is connected with described gear claw journal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606404 CN202913954U (en) | 2012-11-16 | 2012-11-16 | Tooth claw of mining tricone bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606404 CN202913954U (en) | 2012-11-16 | 2012-11-16 | Tooth claw of mining tricone bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202913954U true CN202913954U (en) | 2013-05-01 |
Family
ID=48162275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220606404 Expired - Lifetime CN202913954U (en) | 2012-11-16 | 2012-11-16 | Tooth claw of mining tricone bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202913954U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070329A (en) * | 2014-06-30 | 2014-10-01 | 成都高普石油工程技术有限公司 | Processing technology for claws on petroleum drilling drill bit |
| CN107237608A (en) * | 2017-06-08 | 2017-10-10 | 广汉川亿石油科技有限公司 | Can anticreep the three ratchet wheel drill bits that drive a well |
-
2012
- 2012-11-16 CN CN 201220606404 patent/CN202913954U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070329A (en) * | 2014-06-30 | 2014-10-01 | 成都高普石油工程技术有限公司 | Processing technology for claws on petroleum drilling drill bit |
| CN107237608A (en) * | 2017-06-08 | 2017-10-10 | 广汉川亿石油科技有限公司 | Can anticreep the three ratchet wheel drill bits that drive a well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: ANSTEEL GROUP MINING Co.,Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Ansteel Group Mining Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |