CN205154027U - Roll slide -bar and hold tricone drill bit with lifting force - Google Patents
Roll slide -bar and hold tricone drill bit with lifting force Download PDFInfo
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- CN205154027U CN205154027U CN201521020518.8U CN201521020518U CN205154027U CN 205154027 U CN205154027 U CN 205154027U CN 201521020518 U CN201521020518 U CN 201521020518U CN 205154027 U CN205154027 U CN 205154027U
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- gear wheel
- bearing body
- bearing
- bit
- insert
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Abstract
The utility model relates to a roll slide -bar and hold tricone drill bit with lifting force, the gear wheel holds and supports on the bit leg through rolling the slide -bar, rolls that slide -bar contracting contains the bit leg bearing body and rather than the mating gear wheel bearing body, insert gear wheel thrust piece among the end face slot of the gear wheel bearing body, insert bit leg thrust piece among the end face slot of bit leg bearing body, two thrust pieces contact, the first step position and insert in the internal sliding sleeve cooperation of gear wheel bearing of bit leg bearing body, second step position is equipped with the interior concave circular arc groove that is used for holding the steel ball, and the gear wheel bearing body is equipped with the space layout steel ball of the evagination arc groove that is used for holding the steel ball, formation, third step position and rather than arranging the roller in the annular raceway between the relative gear wheel bearing body, the bit leg bearing body has arc groove and build -up welding wear -resistant material layer with the cooperation position processing of sliding sleeve, and the cooperation position still mills a tangent plane, and the tangent plane becomes the oil storage space with the hole shape of face of sliding sleeve. The simple installation bears the weight of the reinforce, the dead phenomenon of bearing card can not appear.
Description
Technical field
The utility model relates to a kind of tricone bit of mining, particularly relates to a kind of skid bearing tricone bit with lifting force.
Background technology
At present, the main failure forms of the boring tricone bit in mine is bearing failure, and bearing life determines the application life of drill bit to a certain extent.The improvement of bearing, be the core of tricone bit design research and development, be also bottleneck always.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, provides a kind of skid bearing tricone bit with lifting force.
The purpose of this utility model is achieved through the following technical solutions:
There is the skid bearing tricone bit of lifting force, comprise gear wheel and bit leg, feature is: described gear wheel is supported on bit leg by skid bearing, described skid bearing comprises teeth palm bearing body and the gear wheel bearing body with its pairing, the end face of described gear wheel bearing body is provided with the groove for insert gear wheel thrust block of evagination, insert gear wheel thrust block in groove, the end face of described teeth palm bearing body is provided with the groove for insert bit leg thrust block of indent, insert bit leg thrust block in groove, bit leg thrust block contacts with gear wheel thrust block;
Described teeth palm bearing body is vertically in staircase structural model, matches with the sliding sleeve of insert in gear wheel bearing body in its first step position; Its second step position is provided with the indent arc groove for holding steel ball, and corresponding thereto, gear wheel bearing body is provided with the evagination arc groove for holding steel ball, and steel ball is arranged in the space that two arc grooves are formed; Be provided with ring raceway between its 3rd stepped portions and gear wheel bearing body corresponding thereto, in raceway, arrange roller;
The matching part of described teeth palm bearing body and sliding sleeve is processed with arc groove, and arc groove heap is welded with wear-resistant material layer, and in addition, matching part also mills out tangent plane, and the inner hole surface of tangent plane and sliding sleeve forms oil storage space.
Further, the above-mentioned skid bearing tricone bit with lifting force, wherein, the Excircle machining of described sliding sleeve has guide angle, and accordingly, the gear wheel bearing body region for insert sliding sleeve is also processed with guide angle.
Further, the above-mentioned skid bearing tricone bit with lifting force, wherein, described guide angle is 20 °.
Further, the above-mentioned skid bearing tricone bit with lifting force, wherein, the angle of described arc groove is 135 °.
Further, the above-mentioned skid bearing tricone bit with lifting force, wherein, described tangent plane has two, symmetrical in 40 °.
Again further, the above-mentioned skid bearing tricone bit with lifting force, wherein, described sliding sleeve is by colding pressing mode insert on gear wheel bearing body.
Again further, the above-mentioned skid bearing tricone bit with lifting force, wherein, described gear wheel thrust block is by colding pressing mode insert in the end face groove of gear wheel bearing body.
Again further, the above-mentioned skid bearing tricone bit with lifting force, wherein, described bit leg thrust block is by colding pressing mode insert in the end face groove of teeth palm bearing body.
Again further, the above-mentioned skid bearing tricone bit with lifting force, wherein, the end face of the gear wheel thrust block coordinated with gear wheel bearing body is provided with cannelure, insert copper alloy ring in cannelure.
Again further, the above-mentioned skid bearing tricone bit with lifting force, wherein, described bit leg thrust block is provided with central through hole vertically, is radially provided with air drain.
Substantive distinguishing features and the progress of technical solutions of the utility model are mainly reflected in:
1. the utility model design uniqueness, novel structure, bit leg thrust block contacts with gear wheel thrust block, provides the axial carrying of bearing; Roller is installed between gear wheel bearing body and teeth palm bearing body, and sliding sleeve to be installed on gear wheel bearing body and to coordinate with teeth palm bearing body, jointly provides the radial direction of bearing to carry, and extends the application life of bearing; By installing steel ball, locking gear wheel, makes gear wheel come off;
2. the matching part of teeth palm bearing body and sliding sleeve is processed with arc groove, welding high-abrasive material; And mill out two tangent planes, form oil storage space, for storing lubricant grease, bearing is in the process of work, and grease rotates together along with gear wheel, and then forms oil film, reduces the friction factor of bearing, reduces heating, extends bearing life;
3. skid bearing cone bit simple installation, bearing capacity is strong, there will not be bearing stuck phenomenon; Result of use is good, compares traditional slide bearing bit, and the life-span improves more than 30%, remarkable in economical benefits.
Accompanying drawing explanation
Fig. 1: the structural representation of the utility model tricone bit;
Fig. 2: the structural representation of the utility model skid bearing;
Fig. 3: the structural representation of gear wheel bearing body;
Fig. 4: the structural representation of teeth palm bearing body;
Fig. 5: the cross section structure schematic diagram of gear wheel thrust block;
Fig. 6: the schematic top plan view of gear wheel thrust block;
Fig. 7: the cross section structure schematic diagram of bit leg thrust block;
Fig. 8: the schematic top plan view of bit leg thrust block;
Fig. 9: the structural representation of the matching part of teeth palm bearing body and sliding sleeve;
The A-A cross-sectional schematic of Figure 10: Fig. 2;
Figure 11: the cross section structure schematic diagram of sliding sleeve.
Detailed description of the invention
As shown in Figure 1, have the skid bearing tricone bit of lifting force, comprise gear wheel 2 and bit leg 1, gear wheel 2 is supported on bit leg 1 by skid bearing.
As Fig. 2, skid bearing comprises teeth palm bearing body 6 and the gear wheel bearing body 3 with its pairing, as Fig. 3, the end face of gear wheel bearing body 3 is provided with the groove for insert gear wheel thrust block of evagination, and gear wheel thrust block 4 is by colding pressing mode insert in the end face groove of gear wheel bearing body 3; As Fig. 4, the end face of teeth palm bearing body 6 is provided with the groove for insert bit leg thrust block of indent, and bit leg thrust block 7 is by colding pressing mode insert in the end face groove of teeth palm bearing body 6, and bit leg thrust block 7 contacts with gear wheel thrust block 4.Two thrust block contacts, provide the axial carrying of bearing.
Teeth palm bearing body 6 is vertically in staircase structural model, matches with the sliding sleeve 10 of insert in gear wheel bearing body in its first step position (pilot pin); Its second step position (middle axle journal) is provided with the indent arc groove for holding steel ball, and corresponding thereto, gear wheel bearing body is provided with the evagination arc groove for holding steel ball, and steel ball 11 is arranged in the space that two arc grooves are formed; Be provided with ring raceway between its 3rd stepped portions (large axle journal) and gear wheel bearing body corresponding thereto, in raceway, arrange roller 12.
As Fig. 5, Fig. 6, the end face of the gear wheel thrust block coordinated with gear wheel bearing body is provided with cannelure, insert copper alloy ring 5 in cannelure.
As Fig. 7, Fig. 8, bit leg thrust block is provided with central through hole 8 vertically, is radially provided with air drain 9.
As Fig. 9, Figure 10, the matching part (pilot pin) of teeth palm bearing body and sliding sleeve is processed with arc groove 13, and the angle of arc groove is 135 °, and arc groove 13 heap is welded with wear-resistant material layer, increases the abrasion resistance of bearing.In addition, matching part also mills out tangent plane 14, and tangent plane 14 has two, symmetrical in 40 °, tangent plane 14 forms oil storage space B, for bearing provides lubricant grease with the inner hole surface of sliding sleeve 10, make to form lubricating oil film between teeth palm bearing body 6 and sliding sleeve 10, improve anti-wear performance.
As Figure 11, the Excircle machining of sliding sleeve 10 has guide angle C, and accordingly, the gear wheel bearing body region for insert sliding sleeve is also processed with guide angle, and guide angle is 20 °.Like this, coordinate between guide angle, make to slide over when colding pressing self-align, process of press in is more smooth.Sliding sleeve 10, by colding pressing mode insert on gear wheel bearing body 3, carries in order to the radial direction improving bearing.
During embody rule, bit leg thrust block 7 contacts with gear wheel thrust block 4, provides the axial carrying of bearing.Roller 12 is installed between gear wheel bearing body 3 and teeth palm bearing body 6, and sliding sleeve 10 to be installed on gear wheel bearing body 3 and to coordinate with teeth palm bearing body 6, jointly provides the radial direction of bearing to carry, and extends the application life of bearing.By installing steel ball 11, locking gear wheel, makes gear wheel come off.
The matching part of teeth palm bearing body and sliding sleeve is processed with arc groove 13, welding high-abrasive material; And mill out two tangent planes 14, form oil storage space, for storing lubricant grease.Bearing is in the process of work, and grease rotates together along with gear wheel, and then forms oil film, reduces the friction factor of bearing, reduces heating, extends bearing life.
The utility model skid bearing cone bit simple installation, bearing capacity is strong, there will not be bearing stuck phenomenon.Field trial result of use is good, compares traditional slide bearing bit, and the life-span improves more than 30%, remarkable in economical benefits.
It is to be understood that: the above is only preferred embodiment of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. there is the skid bearing tricone bit of lifting force, comprise gear wheel and bit leg, it is characterized in that: described gear wheel is supported on bit leg by skid bearing, described skid bearing comprises teeth palm bearing body and the gear wheel bearing body with its pairing, the end face of described gear wheel bearing body is provided with the groove for insert gear wheel thrust block of evagination, insert gear wheel thrust block in groove, the end face of described teeth palm bearing body is provided with the groove for insert bit leg thrust block of indent, insert bit leg thrust block in groove, bit leg thrust block contacts with gear wheel thrust block;
Described teeth palm bearing body is vertically in staircase structural model, matches with the sliding sleeve of insert in gear wheel bearing body in its first step position; Its second step position is provided with the indent arc groove for holding steel ball, and corresponding thereto, gear wheel bearing body is provided with the evagination arc groove for holding steel ball, and steel ball is arranged in the space that two arc grooves are formed; Be provided with ring raceway between its 3rd stepped portions and gear wheel bearing body corresponding thereto, in raceway, arrange roller;
The matching part of described teeth palm bearing body and sliding sleeve is processed with arc groove, and arc groove heap is welded with wear-resistant material layer, and in addition, matching part also mills out tangent plane, and the inner hole surface of tangent plane and sliding sleeve forms oil storage space.
2. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: the Excircle machining of described sliding sleeve has guide angle, and accordingly, the gear wheel bearing body region for insert sliding sleeve is also processed with guide angle.
3. the skid bearing tricone bit with lifting force according to claim 2, is characterized in that: described guide angle is 20 °.
4. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: the angle of described arc groove is 135 °.
5. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: described tangent plane has two, symmetrical in 40 °.
6. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: described sliding sleeve is by colding pressing mode insert on gear wheel bearing body.
7. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: described gear wheel thrust block is by colding pressing mode insert in the end face groove of gear wheel bearing body.
8. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: described bit leg thrust block is by colding pressing mode insert in the end face groove of teeth palm bearing body.
9. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: the end face of the gear wheel thrust block coordinated with gear wheel bearing body is provided with cannelure, insert copper alloy ring in cannelure.
10. the skid bearing tricone bit with lifting force according to claim 1, is characterized in that: described bit leg thrust block is provided with central through hole vertically, is radially provided with air drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020518.8U CN205154027U (en) | 2015-12-10 | 2015-12-10 | Roll slide -bar and hold tricone drill bit with lifting force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020518.8U CN205154027U (en) | 2015-12-10 | 2015-12-10 | Roll slide -bar and hold tricone drill bit with lifting force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154027U true CN205154027U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020518.8U Active CN205154027U (en) | 2015-12-10 | 2015-12-10 | Roll slide -bar and hold tricone drill bit with lifting force |
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| CN (1) | CN205154027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332656A (en) * | 2015-12-10 | 2016-02-17 | 苏州新锐合金工具股份有限公司 | Sliding-rolling bearing tri-cone rock bit with lifting force |
-
2015
- 2015-12-10 CN CN201521020518.8U patent/CN205154027U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332656A (en) * | 2015-12-10 | 2016-02-17 | 苏州新锐合金工具股份有限公司 | Sliding-rolling bearing tri-cone rock bit with lifting force |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |