CN213450251U - Roller bit palm piece and drilling machine - Google Patents
Roller bit palm piece and drilling machine Download PDFInfo
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- CN213450251U CN213450251U CN202022129991.7U CN202022129991U CN213450251U CN 213450251 U CN213450251 U CN 213450251U CN 202022129991 U CN202022129991 U CN 202022129991U CN 213450251 U CN213450251 U CN 213450251U
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Abstract
The utility model discloses a roller bit palm piece and rig belongs to drilling tunnelling technical field. The cone blade includes: the bearing comprises a cone, a bit leg, a first journal, a second journal, a first bushing and a second bushing; the first end of the first journal is fixedly connected with the bit leg, and the second end of the first journal is fixedly connected with the first end of the second journal; a first cavity and a second cavity are formed in the roller cone, and the first cavity is communicated with the second cavity; the first bushing is fixedly arranged in the first cavity, and the first journal is arranged in the first bushing; the second bushing is fixedly disposed within the second cavity, and the second journal is disposed within the second bushing. The utility model discloses roller bit palm piece and rig can avoid slide bearing to sting the inefficacy, improves life.
Description
Technical Field
The utility model relates to a drilling tunnelling technical field, in particular to roller bit palm piece and rig.
Background
The engineering cone palm piece is widely used for drilling and driving of various engineering such as bridges, buildings and the like, and mainly comprises a cone palm, a cone and various small parts. Two pairs of sliding bearings are formed between the cone big and small tracks and the cone leg big and small tracks, so that the cone can rotate around the cone leg shaft neck, and the balls have a locking effect. When the engineering roller bit revolves along with a rotary drilling rig or a barrel drill with axial pressure, the roller bit also rotates around a roller bit shaft neck, and hard alloy teeth on the roller bit break rock stratum to tunnel.
However, the sliding friction pair in the prior art has poor seizure resistance, is easy to generate heat and cause seizure failure, and affects the service life.
SUMMERY OF THE UTILITY MODEL
The utility model provides a roller cone palm piece and rig has solved or the part has solved that the vice anti interlock nature of sliding friction is poor among the prior art, generates heat easily and bites the inefficacy, influences life's technical problem.
In order to solve the technical problem, the utility model provides a roller bit includes: the bearing comprises a cone, a bit leg, a first journal, a second journal, a first bushing and a second bushing; the first end of the first journal is fixedly connected with the bit leg, and the second end of the first journal is fixedly connected with the first end of the second journal; a first cavity and a second cavity are formed in the roller cone, and the first cavity is communicated with the second cavity; the first bushing is fixedly arranged in the first cavity, and the first journal is arranged in the first bushing; the second bushing is fixedly disposed within the second cavity, and the second journal is disposed within the second bushing.
Further, the second end of the first journal is fixedly connected with the first end of the second journal through a connecting block.
Further, a third cavity is formed in the roller cone and is arranged between the first cavity and the second cavity, and the third cavity is communicated with the first cavity and the second cavity; the connecting block is arranged in the third cavity.
Furthermore, a plurality of first semicircular grooves are formed in the circumferential surface of the connecting block; a plurality of second semicircular grooves are formed in the inner wall of the third cavity, and the plurality of first semicircular grooves correspond to the plurality of second semicircular grooves one to one; the first semicircular groove and the corresponding second semicircular groove form a circular groove; and a steel ball is arranged in the circular groove.
Furthermore, the tooth palm is provided with a plug pin hole; the plug pin hole is communicated with the circular groove.
Further, the diameter of the first journal is larger than the diameter of the second journal; the diameter of the first cavity is larger than the diameter of the second cavity.
Further, lubricating grease is arranged in the first cavity and the second cavity.
Further, a sealing ring is fixedly arranged between the first shaft neck and the bit leg.
Furthermore, a plurality of hard alloy teeth are fixedly arranged on the outer wall of the cone.
The application also provides a drilling machine which comprises the cone palm sheet.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the first end and the bit leg fixed connection of first axle journal, the second end of first axle journal and the first end fixed connection of second axle journal, first cavity and second cavity have been seted up in the gear wheel, first cavity and second cavity intercommunication, first bush is fixed to be set up in first cavity, first axle journal sets up in first bush, the second bush is fixed to be set up in the second cavity, the second axle journal sets up in the second bush, so, first axle journal forms the friction pair with first bush, the second axle journal forms the friction pair with the second bush, can avoid slide bearing to seize the inefficacy, improve life.
Drawings
Fig. 1 is a schematic structural diagram of a cone palm piece according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, an embodiment of the present invention provides a roller cone blade including: cone 1, bit leg 2, first journal 3, second journal 4, first bushing 5, and second bushing 6.
The first end of the first journal 3 is fixedly connected with the bit leg 2, and the second end of the first journal 3 is fixedly connected with the first end of the second journal 4.
A first cavity and a second cavity are formed in the cone 1, and the first cavity is communicated with the second cavity.
A first bushing 5 is fixedly arranged in the first cavity and the first journal 3 is arranged in the first bushing 5.
A second bushing 6 is fixedly disposed within the second cavity and the second journal 4 is disposed within the second bushing 6.
This application embodiment is because first end and the bit leg 2 fixed connection of first axle journal 3, the second end of first axle journal 3 and the first end fixed connection of second axle journal 4, first cavity and second cavity have been seted up in the gear wheel 1, first cavity and second cavity intercommunication, first bush 5 is fixed to be set up in first cavity, first axle journal 3 sets up in first bush, second bush 6 is fixed to be set up in the second cavity, second axle journal 4 sets up in the second bush, therefore, first axle journal 3 forms the friction pair with first bush 5, second axle journal 4 forms the friction pair with second bush 6, can avoid slide bearing to die the inefficacy, life is prolonged.
The material of the cone 1 and the bit leg 2 is low-carbon alloy steel, the material of the first bushing 5 and the material of the second bushing 6 are tool steel, the seizure resistance between the tool steel and the low-carbon alloy steel is good, and the phenomena that the sliding friction pair is poor in seizure resistance and heating seizure failure occurs are further avoided.
Specifically, the second end of the first journal 3 is fixedly connected with the first end of the second journal 4 by a connecting block 7. In the present embodiment, the first journal 3, the connecting block 7, and the second journal 4 may be integrally formed.
A third cavity is formed in the cone 1, the third cavity is arranged between the first cavity and the second cavity, and the third cavity is communicated with the first cavity and the second cavity.
The connecting block 7 is arranged in the third cavity.
A plurality of first semicircular grooves are formed in the circumferential surface of the connecting block 7.
A plurality of second semicircular grooves are formed in the inner wall of the third cavity, and the plurality of first semicircular grooves correspond to the plurality of second semicircular grooves one to one.
The first semicircular groove and the corresponding second semicircular groove form a circular groove.
A steel ball 8 is arranged in the circular groove.
A plug pin hole is formed on the bit leg 2; the plug pin hole is communicated with the circular groove.
When the second journal 4 enters the second bushing 6 and the first journal 3 enters the first bushing 5, the first semicircular groove and the corresponding second semicircular groove form a circular groove, the steel ball 8 enters the circular groove through the plug pin hole, the connecting block 7 is locked in the third cavity through the steel ball 8, the actions of the first journal 3 and the second journal 4 are not interfered, the first journal 3 is prevented from being separated from the first bushing 5, and the second journal 4 is prevented from being separated from the second bushing 6.
Specifically, the diameter of the first journal 3 is larger than the diameter of the second journal 4; the diameter of the first cavity is larger than that of the second cavity, the outer diameter of the first bushing 5 is matched with that of the first cavity, the inner diameter of the first bushing 5 is matched with that of the first journal 3, the outer diameter of the second bushing 6 is matched with that of the second cavity, and the inner diameter of the second bushing 6 is matched with that of the second journal 4, so that the first journal 3 can move smoothly in the first bushing 5, and the second journal 4 can move smoothly in the second bushing 6.
Specifically, lubricating grease is arranged in the first cavity and the second cavity, so that the first shaft neck 3 can move smoothly in the first bush 5, and the second shaft neck 4 can move smoothly in the second bush 6.
A sealing ring 9 is fixedly arranged between the first journal 3 and the bit leg 2, so that lubricating grease leakage is avoided.
The outer wall of the cone 1 is fixedly provided with a plurality of hard alloy teeth 10, the cone 1 rotates around the first journal 3 and the second journal 4, and the hard alloy teeth 10 on the cone 1 crush rock strata to complete drilling and tunneling work.
The utility model also provides a rig, this rig have adopted the cone palm piece in above-mentioned embodiment, and the concrete structure of this cone palm piece refers to above-mentioned embodiment, because this cone palm piece has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A cone leg comprising: the bearing comprises a cone, a bit leg, a first journal, a second journal, a first bushing and a second bushing;
the first end of the first journal is fixedly connected with the bit leg, and the second end of the first journal is fixedly connected with the first end of the second journal;
a first cavity and a second cavity are formed in the roller cone, and the first cavity is communicated with the second cavity;
the first bushing is fixedly arranged in the first cavity, and the first journal is arranged in the first bushing;
the second bushing is fixedly disposed within the second cavity, and the second journal is disposed within the second bushing.
2. The cone leg segment of claim 1, wherein:
the second end of the first journal is fixedly connected with the first end of the second journal through a connecting block.
3. The cone leg segment of claim 2, wherein:
a third cavity is formed in the roller cone, the third cavity is arranged between the first cavity and the second cavity, and the third cavity is communicated with the first cavity and the second cavity;
the connecting block is arranged in the third cavity.
4. The cone leg segment of claim 3, wherein:
the circumferential surface of the connecting block is provided with a plurality of first semicircular grooves;
a plurality of second semicircular grooves are formed in the inner wall of the third cavity, and the plurality of first semicircular grooves correspond to the plurality of second semicircular grooves one to one;
the first semicircular groove and the corresponding second semicircular groove form a circular groove;
and a steel ball is arranged in the circular groove.
5. The cone leg segment of claim 4, wherein:
the tooth palm is provided with a plug pin hole;
the plug pin hole is communicated with the circular groove.
6. The cone leg segment of claim 1, wherein:
the diameter of the first journal is greater than the diameter of the second journal;
the diameter of the first cavity is larger than the diameter of the second cavity.
7. The cone leg segment of claim 1, wherein:
lubricating grease is arranged in the first cavity and the second cavity.
8. The cone leg segment of claim 7, wherein:
and a sealing ring is fixedly arranged between the first shaft neck and the bit leg.
9. The cone leg segment of claim 1, wherein:
and a plurality of hard alloy teeth are fixedly arranged on the outer wall of the cone.
10. A drill comprising a cone palm according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022129991.7U CN213450251U (en) | 2020-09-24 | 2020-09-24 | Roller bit palm piece and drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022129991.7U CN213450251U (en) | 2020-09-24 | 2020-09-24 | Roller bit palm piece and drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213450251U true CN213450251U (en) | 2021-06-15 |
Family
ID=76326322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022129991.7U Active CN213450251U (en) | 2020-09-24 | 2020-09-24 | Roller bit palm piece and drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213450251U (en) |
-
2020
- 2020-09-24 CN CN202022129991.7U patent/CN213450251U/en active Active
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