CN214576771U - Pile foundation expanding drill bit - Google Patents
Pile foundation expanding drill bit Download PDFInfo
- Publication number
- CN214576771U CN214576771U CN202120188303.6U CN202120188303U CN214576771U CN 214576771 U CN214576771 U CN 214576771U CN 202120188303 U CN202120188303 U CN 202120188303U CN 214576771 U CN214576771 U CN 214576771U
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- movable arm
- shovel
- pile foundation
- reamer bit
- central pipe
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Abstract
The utility model relates to an engineering technical field, concretely relates to pile foundation reamer bit, include: the shovel comprises an upper central pipe, a lower central pipe, a movable arm assembly and a shovel sheet assembly; the lower central pipe is sleeved in the upper central pipe and moves along the axial direction of the upper central pipe through a driving device; the movable arm assembly comprises a lower movable arm, one end of the lower movable arm is hinged with the upper central pipe, and the other end of the lower movable arm moves towards the direction close to the lower central pipe or moves towards the direction far away from the lower central pipe; the shovel piece assembly comprises a shovel piece, and the shovel piece is hinged with the lower movable arm. In this scheme, down the swing arm is connected with the shovel piece, drives the shovel piece and to being close to the direction of lower center tube removes, or to keeping away from the direction of lower center tube removes to carry out the reaming, only set up a drive arrangement and can reduce the fault rate and the reduce cost of reamer bit, have advantages such as convenient to use and simple structure.
Description
Technical Field
The utility model relates to an engineering technical field, concretely relates to pile foundation reamer bit.
Background
Some reaming ranges of the existing reaming bits are narrow, some counterbores can bear small torque force, the speed of the reaming effect is influenced, some reaming operations can be carried out only by being equipped with at least 4 oil cylinders, and the failure rate and the manufacturing cost of the drill bit are relatively high.
In summary, the failure rate and manufacturing cost of the existing reamer bit are relatively high.
SUMMERY OF THE UTILITY MODEL
One of the technical problems to be solved by the present invention is: the problem that the existing reamer bit has relatively high failure rate and manufacturing cost is solved.
(II) technical scheme
In order to solve the technical problem, the utility model provides a pile foundation reamer bit, include:
an upper center tube;
the lower central pipe is sleeved in the upper central pipe and moves along the axial direction of the upper central pipe through a driving device;
the movable arm assembly comprises a lower movable arm, one end of the lower movable arm is hinged with the upper central pipe, and the other end of the lower movable arm moves towards the direction close to the lower central pipe or moves towards the direction far away from the lower central pipe;
the shovel piece assembly comprises a shovel piece, and the shovel piece is hinged with the lower movable arm.
According to the utility model discloses an embodiment, pile foundation reamer bit still includes the lower pull rod, the one end of lower pull rod with the lower center tube is articulated, the other end of lower pull rod with down the swing arm is articulated.
According to the utility model discloses an embodiment, the swing arm assembly still includes the swing arm, the one end of going up the swing arm with it is articulated to go up the center tube, the other end of going up the swing arm with the shovel piece is articulated.
According to the utility model discloses an embodiment, go up the movable arm with the upper end of shovel piece is articulated, down the movable arm with the lower extreme of shovel piece is articulated.
According to the utility model discloses an embodiment, be provided with the hydro-cylinder in the center tube down, the hydro-cylinder includes cylinder body and movable rod, the cylinder body with it is fixed to go up the center tube, the movable rod with the center tube is fixed down, it passes through to go up the center tube the hydro-cylinder is followed the axis direction of center tube removes down.
According to the utility model discloses an embodiment, the shovel piece assembly still includes the forming relieved tooth, the forming relieved tooth set up in on the shovel piece.
According to the utility model discloses an embodiment, be provided with on the shovel and receive native riser, it is the circular arc board to receive native riser, the bottom of receiving native riser is provided with the bottom and receives native board.
According to the utility model discloses an embodiment, be provided with interior keybar on the outer wall of lower center tube, be provided with on the inner wall of going up the center tube with the outer keybar that interior keybar matches.
According to the utility model discloses an embodiment, pile foundation reamer bit still includes the guard shield, the guard shield set up in go up the tip of center tube.
According to the utility model discloses an embodiment, the quantity of shovel piece is a plurality of, and is a plurality of the shovel piece is followed go up the circumference equipartition of center tube.
The utility model has the advantages that: in the pile foundation reamer bit that this application provided, the center tube passes through drive arrangement and follows down the axis direction of going up the center tube removes, and lower swing arm is connected with the shovel piece, drives the shovel piece and to being close to the direction of center tube removes down, or to keeping away from the direction of center tube removes down to carry out the reaming, only set up a drive arrangement and can reduce reamer bit's fault rate and reduce cost, have advantages such as convenient to use and simple structure.
Drawings
The above and/or additional aspects and advantages 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 an external structural schematic diagram of a pile-based reamer bit provided by the present application.
The reference numbers are as follows: 1. the shovel comprises a protective cover, 2 shovel blades, 3 shovel blade pin shafts, 4 shovel teeth, 5 soil collecting vertical plates, 6 lower pull rods, 7 bottom soil collecting plates, 8 lower central pipes, 9 lower movable arms, 11 upper movable arms and 12 upper central pipes.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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, the utility model provides a pile foundation reamer bit, which comprises an upper central tube 12, a lower central tube 8, a movable arm assembly and a shovel blade assembly; the lower central tube 8 is sleeved in the upper central tube 12, and the lower central tube 8 moves along the axial direction of the upper central tube 12 through a driving device; the movable arm assembly comprises a lower movable arm 9, one end of the lower movable arm 9 is hinged with the upper central tube 12, and the other end of the lower movable arm 9 moves towards a direction close to the lower central tube 8 or moves towards a direction far away from the lower central tube 8; the shovel piece assembly comprises a shovel piece 2, and the shovel piece 2 is hinged to the lower movable arm 9.
Specifically, the lower movable arm 9 is hinged to the shovel blade 2 through the shovel blade pin shaft 3, and drives the shovel blade 2 to move in a direction close to the lower central tube 8 or in a direction away from the lower central tube 8, so that reaming is performed.
According to the utility model discloses an embodiment, pile foundation reamer bit still includes lower pull rod 6, the one end of lower pull rod 6 with lower center tube 8 is articulated, the other end of lower pull rod 6 with swing arm 9 is articulated down.
Specifically, the other end of the lower movable arm 9 can be driven by the lower pull rod 6 to move towards the direction close to the lower central tube 8 or move away from the lower central tube 8.
According to the utility model discloses an embodiment, the swing arm assembly still includes swing arm 11, the one end of going up swing arm 11 with it is articulated to go up center tube 12, the other end of going up swing arm 11 with shovel piece 2 is articulated.
Specifically, the upper movable arm 11 is arranged, so that the shovel blade 2 can move more stably, the shovel blade 2, the upper center column, the lower movable arm 9 and the upper movable arm 11 form a parallelogram structure, and the parallelogram structure acts under the action of the lower pull rod 6, so that the drill bit is expanded or stays at a certain position to perform drilling operation.
According to the utility model discloses an embodiment, go up movable arm 11 with the upper end of shovel piece 2 is articulated, down movable arm 9 with the lower extreme of shovel piece 2 is articulated.
Specifically, the upper boom 11 is provided at the upper end of the blade 2, and the lower boom 9 is provided at the lower end of the blade 2, so that the movement of the entire blade 2 can be more stabilized.
According to the utility model discloses an embodiment, be provided with the hydro-cylinder in the lower center tube 8, the hydro-cylinder includes cylinder body and movable rod, the cylinder body with it is fixed to go up center tube 12, the movable rod with center tube 8 is fixed down, it passes through to go up center tube 12 the hydro-cylinder is followed the axis direction of center tube 8 removes down.
Specifically, the cylinder body of the oil cylinder is fixed in the upper central tube 12 through a pin shaft, the movable rod can stretch along the cylinder body, and the movable rod is fixed in the lower central tube 8 through a pin shaft. Only be provided with an hydro-cylinder, need not a plurality of hydro-cylinders, practice thrift the cost, and can reduce the fault rate.
According to the utility model discloses an embodiment, blade assembly still includes relieving 4, and relieving 4 plays the reaming ability of reinforcing drill bit, has fine crushing ability to stereoplasm earth, relieving 4 set up in on the blade 2.
According to the utility model discloses an embodiment, be provided with on the shovel piece 2 and receive native riser 5, it is the circular arc board to receive native riser 5, the bottom of receiving native riser 5 is provided with bottom and receives native board 7, receives native board 7 and can temporarily deposit the ground that the reaming in-process was scraped to take these rocks soil to ground.
According to the utility model discloses an embodiment, be provided with interior keybar on the outer wall of lower center tube 8, be provided with on the inner wall of last center tube 12 with the outer keybar that interior keybar matches.
Specifically, the upper central tube 12 and the lower central tube 8 move through the inner key strips and the outer key strips, and the moving direction of the upper central tube 12 can be limited.
According to the utility model discloses an embodiment, pile foundation reamer bit still includes guard shield 1, guard shield 1 set up in go up the tip of center tube 12.
Specifically, set up guard shield 1 and can prevent that debris from falling into articulated department, cause the damage to pile foundation reamer bit.
According to the utility model discloses an embodiment, the quantity of shovel piece 2 is a plurality of, and is a plurality of shovel piece 2 is followed go up the circumference equipartition of center tube 12.
Specifically, one upper boom 11 and one lower boom 9 are provided corresponding to one blade 2.
The application provides a pile foundation reamer bit during use, pull rod 6 carries out the linkage under the up-and-down motion pulling through the built-in hydro-cylinder in center post down, thereby swing arm 9 up-and-down motion under the drive, because three shovel piece 2 is the parallelogram structure with last center post, the event is under pull rod 6's action down, three pairs of parallelogram structure simultaneous movement, thereby drive shovel piece 2 and enlarge or reduce, realize progressively opening to the biggest of drill bit, perhaps stop at a certain position wantonly, carry out the drilling operation, the hydro-cylinder passes through its action of oil pipe connection control. The cylinder body of the oil cylinder is fixed in the upper central tube 12 through a pin shaft, and the movable rod head is fixed in the lower central tube 8 through a pin shaft. The lower central tube 8 is a guide rail through the inner key strip and the outer key strip, and moves linearly in the upper central tube 12.
In conclusion, in the pile foundation reamer bit that this application provided, the center tube passes through drive arrangement and follows down the axis direction of going up the center tube removes, and lower swing arm is connected with the shovel piece, drives the shovel piece and to being close to the direction of center tube removes down, or to keeping away from the direction of center tube removes down to ream, only set up a drive arrangement and can reduce reamer bit's fault rate and reduce cost, have advantages such as convenient to use and simple structure.
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 only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning 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 preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A pile foundation reamer bit, comprising:
an upper center tube;
the lower central pipe is sleeved in the upper central pipe and moves along the axial direction of the upper central pipe through a driving device;
the movable arm assembly comprises a lower movable arm, one end of the lower movable arm is hinged with the upper central pipe, and the other end of the lower movable arm moves towards the direction close to the lower central pipe or moves towards the direction far away from the lower central pipe;
the shovel piece assembly comprises a shovel piece, and the shovel piece is hinged with the lower movable arm.
2. The pile foundation reamer bit of claim 1, wherein: the pile foundation reamer bit further comprises a lower pull rod, one end of the lower pull rod is hinged to the lower central tube, and the other end of the lower pull rod is hinged to the lower movable arm.
3. The pile foundation reamer bit of claim 1, wherein: the movable arm assembly further comprises an upper movable arm, one end of the upper movable arm is hinged to the upper central pipe, and the other end of the upper movable arm is hinged to the shovel blade.
4. The pile foundation reamer bit of claim 3, wherein: the upper movable arm is hinged with the upper end of the shovel sheet, and the lower movable arm is hinged with the lower end of the shovel sheet.
5. The pile foundation reamer bit of claim 1, wherein: the lower central tube is internally provided with an oil cylinder, the oil cylinder comprises a cylinder body and a movable rod, the cylinder body is fixed with the upper central tube, the movable rod is fixed with the lower central tube, and the upper central tube moves along the axis direction of the lower central tube through the oil cylinder.
6. The pile foundation reamer bit of claim 1, wherein: the shovel blade assembly further comprises a shovel tooth, and the shovel tooth is arranged on the shovel blade.
7. The pile foundation reamer bit of claim 1, wherein: the shovel sheet is provided with a soil collecting vertical plate which is an arc plate, and the bottom of the soil collecting vertical plate is provided with a bottom soil collecting plate.
8. The pile foundation reamer bit of claim 1, wherein: the outer wall of the lower central tube is provided with an inner key strip, and the inner wall of the upper central tube is provided with an outer key strip matched with the inner key strip.
9. The pile foundation reamer bit of claim 1, wherein: pile foundation reamer bit still includes the guard shield, the guard shield set up in the tip of going up the center tube.
10. The pile foundation reamer bit of claim 1, wherein: the quantity of shovel piece is a plurality of, and is a plurality of shovel piece is followed the circumference equipartition of last center tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120188303.6U CN214576771U (en) | 2021-01-25 | 2021-01-25 | Pile foundation expanding drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120188303.6U CN214576771U (en) | 2021-01-25 | 2021-01-25 | Pile foundation expanding drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214576771U true CN214576771U (en) | 2021-11-02 |
Family
ID=78370712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120188303.6U Active CN214576771U (en) | 2021-01-25 | 2021-01-25 | Pile foundation expanding drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214576771U (en) |
-
2021
- 2021-01-25 CN CN202120188303.6U patent/CN214576771U/en active Active
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