CN215860064U - Hydraulic core-taking drill bit - Google Patents
Hydraulic core-taking drill bit Download PDFInfo
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- CN215860064U CN215860064U CN202122390289.0U CN202122390289U CN215860064U CN 215860064 U CN215860064 U CN 215860064U CN 202122390289 U CN202122390289 U CN 202122390289U CN 215860064 U CN215860064 U CN 215860064U
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Abstract
The utility model relates to the technical field of pneumatic down-the-hole hammers, in particular to a hydraulic core bit, which comprises: the device comprises a square sleeve, a cylinder and a splitter; an accommodating cavity is formed in the cylinder body along the axis direction of the cylinder body, an opening communicated with the accommodating cavity is formed in the bottom of the cylinder body, and the cylinder body is connected with the square sleeve; the splitter is arranged on the side wall of the cylinder body and comprises a splitter top column, and the splitter top column can stretch along the radial direction of the accommodating cavity. In the hydraulic pressure core bit that this application provided, the splitter includes the splitter fore-set, the splitter fore-set can be followed hold radial flexible in chamber, can push up disconnected core fast through the splitter fore-set, and it is efficient to get the core.
Description
Technical Field
The utility model relates to the technical field of pneumatic down-the-hole hammers, in particular to a hydraulic core bit.
Background
The rotary drilling rig is a construction machine widely applied to rock and soil construction at home and abroad for pore-forming operation, and is difficult to drill on a relatively hard bedrock stratum, a large drift layer and a hard permafrost layer directly by using a spiral drill bit or a rotary drill bit. The barrel drill is a special drilling tool, a circular ring crushing zone is formed after drilling through cutting of a circular groove, a core is received into the barrel drill bit by bit during drilling of the barrel drill, the drill bit is hit to the top of the barrel drill bit according to experience to start to lift the drill bit, the drill bit cannot be hit all the time, and the core needs to be cut off and taken out.
The existing coring technology mainly applies larger torque to a rock core through a drill bit, the drill bit can twist off the rock core by continuously rotating forwards and backwards, and a pile hole is taken out. When the self weight of the drilling machine is light and the torque is small, the core cannot be twisted off frequently, so that the core needs to be broken into small blocks to be taken out, and the coring efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
One of the technical problems to be solved by the utility model is as follows: the problem that the coring efficiency of the existing coring technology is low.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a hydraulic core bit, including:
the square sleeve is sleeved on the upper portion of the square sleeve,
the square sleeve is connected with the cylinder body;
the splitter is arranged on the side wall of the cylinder body and comprises a splitter top column, and the splitter top column can stretch along the radial direction of the accommodating cavity.
According to one embodiment of the utility model, the number of the splitter top posts is multiple, and the splitter top posts are respectively positioned at two sides of the side wall of the cylinder body.
According to one embodiment of the utility model, the splitter comprises a splitter body, the splitter top column is telescopically arranged on the splitter body along the radial direction of the accommodating cavity, and the splitter body is arranged on the side wall of the cylinder body.
According to one embodiment of the utility model, an oil storage cavity is arranged in the splitter body, and the splitter top column stretches and retracts through oil inlet and outlet of the oil storage cavity.
According to one embodiment of the utility model, the splitter body is respectively provided with a splitter oil inlet and a splitter oil outlet which are communicated with the oil storage cavity.
According to one embodiment of the utility model, the hydraulic core drill further comprises a mounting piece arranged on the side wall of the cylinder body, the splitter comprises a splitter ear plate connected with the splitter body, and the splitter ear plate is connected with the mounting piece.
According to one embodiment of the utility model, a plurality of splitter ear plates are arranged, and are uniformly distributed along the axial direction of the splitter body.
According to one embodiment of the utility model, a plurality of splitter ejector columns are arranged along the axial direction of the splitter body, and are uniformly distributed along the axial direction of the splitter body.
According to one embodiment of the utility model, the side wall of the cylinder comprises a cylinder inner side plate and a cylinder outer side plate sleeved outside the cylinder inner side plate, and the splitter is arranged on the cylinder inner side plate and the cylinder outer side plate.
According to one embodiment of the utility model, a gap is left between the drum inner side plate and the drum outer side plate.
The utility model has the beneficial effects that: in the hydraulic core drill bit provided by the application, an accommodating cavity is formed in the cylinder body along the axis direction of the cylinder body, an opening communicated with the accommodating cavity is formed in the bottom of the cylinder body, and the cylinder body is connected with the square sleeve; the splitter set up in on the lateral wall of barrel, the splitter includes the splitter fore-set, the splitter fore-set can be followed hold radial flexible of chamber, can push up disconnected core fast through the splitter fore-set, and it is efficient to get the core.
Drawings
The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:
FIG. 1 is a perspective view of a hydraulic core drill bit provided herein;
FIG. 2 is a schematic diagram of a splitter in a hydraulic coring bit as provided herein;
FIG. 3 is a longitudinal cross-sectional view of the bedrock formation of FIG. 1;
FIG. 4 is a transverse cross-sectional view of the bedrock formation of FIG. 1.
The reference numbers are as follows:
1-square sleeve; 2-a cylinder body; 3-a splitter; 4-a core; 5-pile hole wall; 21-inner side plate of the cylinder; 22-cylinder outer side plate; 31-splitter top post; 32-a splitter oil inlet; 33-splitter oil outlet; 34-splitter ear plate.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
As shown in fig. 1 to 4, the present invention provides a hydraulic core bit including: a square sleeve 1, a cylinder 2 and a splitter 3; an accommodating cavity is formed in the cylinder body 2 along the axial direction of the cylinder body, an opening communicated with the accommodating cavity is formed in the bottom of the cylinder body 2, and the cylinder body 2 is connected with the square sleeve 1; the splitter 3 is arranged on the side wall of the cylinder body 2, the splitter 3 comprises a splitter top column 31, and the splitter top column 31 can stretch along the radial direction of the accommodating cavity.
Specifically, the square sleeve 1 is used for being connected with a drill rod of a rotary drilling rig, the splitter 3 is installed on the side wall of the barrel 2, the splitter top column 31 clamps the core 4, and the core 4 is lifted out of a pile hole through the drill rod to complete coring.
According to an embodiment of the present invention, the number of the splitter top pillars 31 is multiple, and the splitter top pillars 31 are respectively located at two sides of the sidewall of the cylinder 2. The splitting devices 3 on two sides can extend into the accommodating cavity and the outside of the accommodating cavity respectively.
Specifically, a plurality of splitter jacks 31 face the core 4 and the pile hole wall 5, respectively, and the center line of the splitter jacks 31 coincides with the diameter of the pile hole. The outer splitter top column 31 takes the pile hole wall 5 as a fulcrum, and the inner splitter top column 31 breaks the rock core 4. The outer splitter jacks 31 are then retracted and the inner splitter jacks 31 remain clamped to the core 4.
According to an embodiment of the present invention, the splitter 3 includes a splitter 3 body, the splitter top column 31 is telescopically arranged on the splitter 3 body along the radial direction of the accommodating cavity, and the splitter 3 body is arranged on the side wall of the cylinder 2.
Specifically, the body of the splitter 3 is telescopically arranged on the body of the splitter 3 so as to jack and clamp the core 4. The side wall of the cylinder body 2 is provided with a mounting hole communicated with the containing cavity, and the splitter 3 is arranged in the mounting hole.
According to one embodiment of the present invention, an oil storage chamber is provided in the splitter 3, and the splitter top column 31 is extended and retracted by oil entering and exiting from the oil storage chamber.
Specifically, the splitter top column 31 stretches along the splitter 3 body through the oil inlet and outlet of the oil storage cavity.
According to an embodiment of the present invention, the splitter 3 body is respectively provided with a splitter oil inlet 32 and a splitter oil outlet 33 which are communicated with the oil storage chamber.
Specifically, an oil inlet and an oil outlet are arranged at the top of the splitter 3 body, oil is fed into the oil outlet through the oil inlet, and the splitter top column 31 is convenient to stretch along the splitter 3 body.
According to an embodiment of the utility model, the hydraulic core bit further comprises a mounting member arranged on the side wall of the cylinder body 2, the splitter 3 comprises a splitter ear plate 34 connected with the body of the splitter 3, and the splitter ear plate 34 is connected with the mounting member.
Particularly, the splitter 3 body is connected with the mounting piece through the splitter ear plate 34, so that the splitter 3 body can be mounted more stably. Can be provided with the mounting groove on the installed part, 3 bodies of splitter are located the mounting groove, and splitter fore-set 31 and mounting groove are avoided, and the splitter fore-set 31 of being convenient for is flexible to holding the intracavity.
A plurality of splitters 3 may be provided on the mounting member, the number of splitters 3 being different according to the diameter and height of the different cores 4, the smaller the diameter of the core 4, the fewer the number of splitters 3 required.
According to one embodiment of the present invention, a plurality of the splitter ear plates 34 are provided, and a plurality of the splitter ear plates 34 are uniformly distributed along the axial direction of the splitter 3 body.
Specifically, the splitter ear plates 34 are connected to the mounting member by bolts.
According to an embodiment of the present invention, a plurality of splitter top columns 31 are arranged along the axial direction of the splitter 3 body, and a plurality of splitter top columns 31 are uniformly distributed along the axial direction of the splitter 3 body.
In particular, the number of splitter jacks 31 varies from core 4 diameter to core 4 diameter and height.
According to one embodiment of the present invention, the side wall of the cylinder 2 includes a cylinder inner side plate 21 and a cylinder outer side plate 22 sleeved outside the cylinder inner side plate 21, and the splitter 3 is disposed on the cylinder inner side plate 21 and the cylinder outer side plate 22.
Specifically, providing the drum inner side plate 21 and the drum outer side plate 22 can increase the stability of the drum 2.
According to one embodiment of the utility model, a gap is left between the cylinder inner plate 21 and the cylinder outer plate 22.
When the hydraulic pressure coring bit that this application provided uses, before coring bit does not get into the cutting annular, splitter fore-set 31 is in the state of withdrawing, after coring bit transfers the stake hole position of coring, the oil pressure increases, and hydraulic oil enters into splitter 3 through splitter oil inlet 32, and splitter fore-set 31 stretches out, and splitter fore-set 31 in the outside uses stake hole wall 5 as the fulcrum, and inboard splitter fore-set 31 pushes up disconnected rock core 4. The outer splitter post 31 is then retracted and the inner splitter post 31 remains clamped to the core 4. And the core 4 is lifted out of the pile hole through the drill rod to complete the coring operation.
In summary, in the hydraulic core drill provided by the present application, an accommodating cavity is disposed in the cylinder 2 along the axial direction thereof, an opening communicated with the accommodating cavity is disposed at the bottom of the cylinder 2, and the cylinder 2 is connected with the square sleeve 1; the splitter 3 set up in on the lateral wall of barrel 2, splitter 3 includes splitter fore-set 31, splitter fore-set 31 can be followed hold radial flexible of chamber, can push up disconnected core 4 fast through splitter fore-set 31, and it is efficient to get the core.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A hydraulic coring bit, comprising:
the square sleeve is sleeved on the upper portion of the square sleeve,
the square sleeve is connected with the cylinder body;
the splitter is arranged on the side wall of the cylinder body and comprises a splitter top column, and the splitter top column can stretch along the radial direction of the accommodating cavity.
2. The hydraulic core bit as set forth in claim 1, wherein: the splitter jacks are multiple in number and are respectively located on two sides of the side wall of the cylinder body.
3. The hydraulic core bit as set forth in claim 1, wherein: the splitter comprises a splitter body, the top column of the splitter is arranged on the splitter body in a radially telescopic manner along the containing cavity, and the splitter body is arranged on the side wall of the cylinder body.
4. The hydraulic core bit as set forth in claim 3, wherein: the splitter is internally provided with an oil storage cavity, and the splitter top column stretches out and draws back through oil inlet and oil outlet of the oil storage cavity.
5. The hydraulic core bit as set forth in claim 4, wherein: and the splitter body is respectively provided with a splitter oil inlet and a splitter oil outlet which are communicated with the oil storage cavity.
6. The hydraulic core bit as set forth in claim 3, wherein: the hydraulic coring bit further comprises a mounting piece arranged on the side wall of the cylinder body, the splitter comprises a splitter ear plate connected with the splitter body, and the splitter ear plate is connected with the mounting piece.
7. The hydraulic core bit as set forth in claim 6, wherein: the splitter ear plate is provided with a plurality of, and is a plurality of the splitter ear plate is followed splitter body axis direction equipartition.
8. The hydraulic core bit as set forth in claim 3, wherein: and a plurality of splitter jacks are arranged along the axis direction of the splitter body and uniformly distributed along the axis direction of the splitter body.
9. The hydraulic core bit as set forth in claim 1, wherein: the side wall of the cylinder body comprises a cylinder body inner side plate and a cylinder body outer side plate sleeved outside the cylinder body inner side plate, and the splitter is arranged on the cylinder body inner side plate and the cylinder body outer side plate.
10. The hydraulic core bit as set forth in claim 9, wherein: a gap is reserved between the inner side plate of the cylinder and the outer side plate of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122390289.0U CN215860064U (en) | 2021-09-30 | 2021-09-30 | Hydraulic core-taking drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122390289.0U CN215860064U (en) | 2021-09-30 | 2021-09-30 | Hydraulic core-taking drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215860064U true CN215860064U (en) | 2022-02-18 |
Family
ID=80262022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122390289.0U Active CN215860064U (en) | 2021-09-30 | 2021-09-30 | Hydraulic core-taking drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215860064U (en) |
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2021
- 2021-09-30 CN CN202122390289.0U patent/CN215860064U/en active Active
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