CN111236836A

CN111236836A - Drilling and reaming integrated device for constant-resistance large-deformation anchor rod

Info

Publication number: CN111236836A
Application number: CN202010055184.7A
Authority: CN
Inventors: 许永震; 孙晓明; 任超; 张付军; 袁俊超; 赵伟平; 李继存; 颉沛; 郭波; 张勇
Original assignee: Gansu Changda Highway Co ltd; China University of Mining and Technology Beijing CUMTB
Current assignee: Gansu Changda Highway Co ltd; China University of Mining and Technology Beijing CUMTB
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-06-05

Abstract

The utility model relates to a drill bit technical field especially relates to a drilling reaming integrated device of constant resistance large deformation stock. The drilling and reaming integrated device for the constant-resistance large-deformation anchor rod comprises a plurality of drill bits, wherein the plurality of drill bits are distributed along a straight line; each drill bit comprises a rod part and a head part; the head part is arranged on the end surface of the rod part; the rod part of one drill bit is detachably connected with the head part of the other drill bit, and the central axes of the rod parts are overlapped; the diameter of each head increases in a straight line. This drilling reaming integrated device of constant resistance large deformation stock can once only accomplish drilling and reaming, and the work progress is comparatively simple, and can guarantee that the axis of drilling section and reaming section coincides mutually, and then improves the machining precision.

Description

Drilling and reaming integrated device for constant-resistance large-deformation anchor rod

Technical Field

The utility model relates to a drill bit technical field especially relates to a drilling reaming integrated device of constant resistance large deformation stock.

Background

The constant-resistance large-deformation anchor rod and the constant-resistance large-deformation anchor cable are used as the most common geotechnical engineering anchoring structures and are widely applied to the engineering fields of geotechnical engineering, tunnel engineering, mining engineering and the like. Because the sleeves of the constant-resistance large-deformation anchor rods and the constant-resistance large-deformation anchor cables are usually in a step shape, correspondingly, step holes need to be processed on rocks so as to be capable of installing the sleeves.

At present, the machining process of the stepped hole is generally divided into two steps: firstly, a small hole is processed by a drilling bit, and then a hole expanding bit is used for expanding the hole of the small hole, so that a large hole is processed. On one hand, the construction process is more complex, and the construction time is longer; on the other hand, the reaming bit is difficult to accurately position, so that the axes of the large hole and the small hole are difficult to coincide.

The above information disclosed in the background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute prior art that is known to a person of ordinary skill in the art.

Disclosure of Invention

An object of the present disclosure is to provide a drilling and reaming integrated device for a constant-resistance large-deformation anchor rod, which can complete the drilling and reaming of a stepped hole at a time, and has a simple construction process, and can ensure that the axes of a drilling section and a reaming section coincide with each other, thereby improving the processing precision.

In order to achieve the purpose, the technical scheme adopted by the disclosure is as follows:

according to an aspect of the present disclosure, a drilling and reaming integrated device for a constant-resistance large-deformation anchor rod is provided for processing a stepped hole, the drilling and reaming integrated device includes:

a plurality of drill bits distributed along a straight line;

each drill comprises a rod part and a head part, and the head part is arranged on the end surface of the rod part; the rod part of one drill bit is detachably connected to the head part of the other drill bit, the central axes of the rod parts are overlapped, and the diameters of the head parts are sequentially increased along the straight line.

In an exemplary embodiment of the present disclosure, the number of the drill bits is two, and the two drill bits are a drill and a reamer respectively;

the drill bit comprises a first rod part and a first head part; one end of the first rod part is provided with a first clamping part, and the other end of the first rod part is provided with the first head part;

the reamer comprises a second rod part and a second head part; one end of the second rod part is provided with a connecting part, and the connecting part can be connected to the drilling machine; the other end of the second rod part is provided with the second head part, the second head part is provided with a second clamping part, the second clamping part can be clamped with the first clamping part, and the diameter of the second head part is larger than that of the first head part;

when the second clamping part is clamped with the first clamping part, the central axis of the second rod part is superposed with the central axis of the first rod part.

In an exemplary embodiment of the present disclosure, one of the first engaging portion and the second engaging portion includes an internally threaded hole, and the other includes an externally threaded rod that is fitted with the internally threaded hole.

In an exemplary embodiment of the present disclosure, the first engaging portion includes the externally threaded rod, and the second engaging portion includes the internally threaded hole.

In an exemplary embodiment of the present disclosure, the drilling and reaming integrated device further includes:

the connecting rod has first end and second end, first end can threaded connection in the external screw thread pole, the second end can threaded connection in the internal thread hole.

In an exemplary embodiment of the present disclosure, the number of the connection rods is plural.

In an exemplary embodiment of the present disclosure, the drilling tool has a first liquid injection hole therethrough, the first liquid injection hole extending in an axial direction of the first rod portion;

the reamer is provided with a second liquid injection hole which is communicated with the reamer, and the second liquid injection hole extends along the axial direction of the second rod part;

the connecting rod is provided with a third liquid injection hole which is communicated, one end of the third liquid injection hole is communicated with the first liquid injection hole, and the other end of the third liquid injection hole is communicated with the second liquid injection hole.

In an exemplary embodiment of the present disclosure, a central axis of the first liquid injection hole coincides with a central axis of the first rod part;

the axis in hole and the axis in second pole portion coincide mutually are annotated to the second, the one end in hole is annotated to the second link up in second pole portion, the other end intercommunication internal thread hole.

In an exemplary embodiment of the present disclosure, the first head includes a blade and a slice;

the number of the blades is multiple, and the blades are rotationally symmetrical around the central axis of the first rod part;

the number of the slices is multiple, and the multiple slices are arranged at the edge position of each first blade.

In an exemplary embodiment of the present disclosure, the second head portion includes a base, a seat, and a bit;

the base is arranged at one end, far away from the connecting part, of the second rod part, and the base is provided with the internal thread hole;

the cutter seats are uniformly arranged at the edge of the base along the circumferential direction and form a plurality of chip discharge grooves;

the quantity of tool bit is a plurality of, and is a plurality of the tool bit is located each the border position of blade holder.

In the drilling and reaming integrated device for the constant-resistance large-deformation anchor rod in the embodiment of the disclosure, in the processing process of the primary stepped hole, firstly, a drill bit with a smaller head diameter is contacted with a piece to be drilled and gradually penetrates into the piece to be drilled, and then a drilling section (small hole section) can be gradually processed; then, the drill with the larger diameter of the head part is also contacted with the piece to be punched and gradually goes deep into the piece to be punched, and the reaming section (the large hole section) can be gradually processed.

That is to say, this drilling reaming integrated device can once only process out the aperture section and the macropore section of one-level shoulder hole, and the work progress is comparatively simple. In addition, because the central axes of the rod parts are overlapped, correspondingly, the central axes of the processed small hole section and the processed large hole section are also overlapped, and therefore the processing precision of the stepped hole is improved.

Of course, the processing procedure of the second-level stepped hole, the third-level stepped hole or the stepped holes of more levels is the same as or different from the processing procedure of the first-level stepped hole, and is not described herein again.

To sum up, this drilling reaming integrated device can once only accomplish the drilling and the reaming of shoulder hole, and the work progress is comparatively simple, and can guarantee that the axis of drilling section and reaming section coincides mutually, and then improves the machining precision.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic view of a drilling and reaming integrated device for a constant-resistance large-deformation anchor rod according to an embodiment of the disclosure.

Fig. 2 is a schematic view of the assembly of a drill, reamer and connecting rod according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of a drill according to an embodiment of the present disclosure.

Fig. 4 is a schematic view of a reamer under a viewing angle according to an embodiment of the present disclosure.

Fig. 5 is a schematic view of another reamer from a perspective of an embodiment of the present disclosure.

FIG. 6 is a schematic structural view of a connecting rod according to an embodiment of the present disclosure.

In the figure: 1000. drilling a hole by a drilling machine; 1. a drill bit; 10. a rod portion; 11. a head portion; 2. drilling; 20. a first rod portion; 200. a first engaging portion; 21. a first head portion; 211. a blade; 212. slicing; 22. a first liquid injection hole; 3. reaming; 30. a second rod portion; 300. a connecting portion; 31. a second head; 310. a second engaging portion; 311. a base; 312. a tool apron; 313. a cutter head; 314. a chip groove; 32. a second liquid injection hole; 4. a connecting rod; 41. a first end; 42. a second end; 43. and a third liquid injection hole.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the embodiments of the disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the primary technical ideas of the disclosure.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is turned upside down, the "up" component will become the "down" component. Other relative terms, such as "high," "low," "top," "bottom," "left," "right," and the like are also intended to have similar meanings.

When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure. The terms "a," "an," "the," and the like are used to denote the presence of one or more elements/components/parts; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc. The terms "first" and "second", etc. are used merely as labels, and are not limiting on the number of their objects.

The embodiment of the present disclosure provides a drilling and reaming integrated device for a constant-resistance large-deformation anchor rod, which is used for processing a first-stage, a second-stage, a third-stage or more stepped holes, and is not limited herein.

As shown in fig. 1, the integrated drilling and reaming device may include a plurality of drill bits 1, the plurality of drill bits 1 being distributed along a straight line, wherein:

each drill bit 1 may comprise a shank 10 and a head 11; the head 11 can be arranged on the end surface of the rod part 10; the rod part 10 of one drill bit 1 is detachably connected with the head part 11 of the other drill bit 1, and the central axes of the rod parts 10 are overlapped; the diameter of each head 11 increases in a straight line in turn and will not be described in detail here.

In the course of working of one-level shoulder hole, the quantity of drill bit 1 can be two, and specific course of working is: firstly, a drill bit 1 with a smaller diameter of a head part 11 is contacted with a piece to be punched and gradually penetrates into the piece to be punched, and a drilling section (small hole section) can be gradually processed; then, the drill bit 1 with the larger diameter of the head 11 is also contacted with the piece to be punched and gradually penetrates into the piece to be punched, and the reaming section (large hole section) can be gradually machined.

That is to say, this drilling reaming integrated device can once only process out the aperture section and the macropore section of one-level shoulder hole, and the work progress is comparatively simple, moreover, because the axis of two pole portions 10 coincides mutually, correspondingly, the axis of aperture section and macropore section also coincides mutually to the machining precision of one-level shoulder hole has been improved.

Of course, the machining process of the second-level stepped hole, the third-level stepped hole or more stepped holes needs to select a corresponding number of drill bits 1, and the specific machining process is the same as or different from the machining process of the first-level stepped hole, and is not described herein again.

To sum up, this drilling reaming integrated device of constant resistance large deformation stock can once only accomplish drilling and reaming process, and the work progress is comparatively simple, and can guarantee that the axis of drilling section and reaming section coincides mutually, and then improves the machining precision.

When the integrated drilling and reaming device is used for processing a primary stepped hole, as shown in fig. 2, the integrated drilling and reaming device may include two drill bits 1, and the two drill bits 1 may be a drill bit 2 and a reamer bit 3, respectively.

The components of the drill 2 and the reamer 3 provided in the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings:

as shown in fig. 3, the drill 2 may include a first shaft portion 20 and a first head portion 21, one end of the first shaft portion 20 may be provided with a first engaging portion 200, and the first head portion 21 may be provided at an end surface of the other end of the first shaft portion 20.

For example, the first head 21 may include blades 211 and slices 212, wherein:

the blades 211 are used to fix the plurality of blades 211, and the plurality of blades 211 may be rotationally symmetric around the central axis of the first rod 20, and accordingly, the plurality of blades 212 may also be equal to the number of blades 211, so that each blade 212 may be disposed at an edge position of each blade 211, thereby implementing a drilling function of the drill 2.

Of course, the first head 21 may have other structures to perform the drilling function, and is not limited in particular.

As shown in fig. 4 and 5, the reamer 3 may comprise a second stem portion 30 and a second head portion 31, wherein:

one end of the second rod 30 may be provided with a connection portion 300, the connection portion 300 may be capable of being connected to the hole drilling machine 1000, the connection portion 300 may be a prismatic structure or other structures, and may be stably connected to the hole drilling machine 1000, which is not limited herein; the second head 31 may be provided on an end surface of the other end of the second shaft 30, and the diameter of the second head 31 is larger than that of the first head 21.

For example, the second head 31 may include a base 311, a holder 312, and a cutting head 313, wherein:

the base 311 may be cylindrical or frustum-shaped, and the base 311 may be disposed at an end of the second rod 30 away from the connecting portion 300; the number of the tool holders 312 can be multiple, the tool holders 312 are uniformly arranged at the edge of the base 311 along the circumferential direction, and a plurality of chip discharge grooves 314 are formed to discharge waste chips in the hole expanding process; the number of the cutting heads 313 is plural, and a plurality of cutting heads 313 can be arranged at the edge position of each tool apron 312.

Of course, the second head 31 may have other structures, and may perform a hole expanding function, and is not particularly limited herein.

It should be noted that the second head 31 may be provided with a second engaging portion 310, the second engaging portion 310 may be engaged with the first engaging portion 200, and when the second engaging portion 310 is engaged with the first engaging portion 200, the central axis of the second rod 30 and the central axis of the first rod 20 are overlapped.

Thus, in the process of machining the stepped hole (primary), first, the first head 21 contacts the piece to be drilled and gradually penetrates into the piece to be drilled, so that a drilling section (small hole section) is machined; subsequently, the second head 31 also contacts the member to be punched and gradually goes deep into the member to be punched, thereby machining a reaming section (large hole section).

That is, the drill 2 and the reamer 3 which are spliced together by the first engaging portion 200 and the second engaging portion 310 can process the first-stage stepped hole at one time, and the construction process is simple. Moreover, because the central axis of the second rod part 30 coincides with the central axis of the first rod part 20, correspondingly, the central axes of the processed small hole section and the processed large hole section also coincide, and further the processing precision of the stepped hole is improved.

For example, one of the first engaging portion 200 and the second engaging portion 310 may include an internal threaded hole, and the other may include an external threaded rod matching with the internal threaded hole.

Preferably, the first engaging portion 200 may include an externally threaded rod, that is, the first engaging portion 200 may be an external thread on the first rod portion 20; the second engaging portion 310 may include an internal threaded hole, that is, the second engaging portion 310 may be an internal threaded hole on the second head 31.

Of course, one of the first engaging portion 200 and the second engaging portion 310 may also include a groove, and the other may also include a protrusion matching with the groove, which is not limited herein.

As shown in fig. 2, the drilling and reaming integrated device for a constant-resistance large-deformation rock bolt of the embodiment of the present disclosure may further include a connecting rod 4 for connecting the drilling drill 2 and the reaming drill 3 to increase the depth of the small hole section.

As shown in fig. 6, the connecting rod 4 may have a first end 41 and a second end 42, wherein:

the first end 41 can be screwed to the drill 2, i.e.: first end 41 may have an internally threaded bore that is threadably coupled to first stem portion 20; the second end 42 can be screwed to the reamer 3, i.e.: the second end 42 is an externally threaded rod that can be threaded onto the second head 31.

It should be noted that the number of the connecting rods 4 can be plural, and the specific number can be adjusted according to the depth of the small hole segment, which is not described in detail herein.

In addition, in order to ensure the smooth drilling work, water or other liquid can be introduced into the drilling drill 2 and the expanding drill 3, so as to achieve the purposes of cooling and dust removal.

Specifically, the drill 2 may have a first pour hole 22 therethrough, and the first pour hole 22 may extend in the axial direction of the first stem portion 20; the reamer 3 may have a second pour hole 32 therethrough, and the second pour hole 32 may extend in the axial direction of the second stem portion 30; the connecting rod 4 may have a third pour hole 43 therethrough, and the third pour hole 43 may extend in the axial direction of the connecting rod 4.

When the drill 2, the reamer 3, and the connecting rod 4 are connected in this order, one end of the third pour hole 43 can communicate with the first pour hole 22, and the other end can communicate with the second pour hole 32.

Thus, water or other liquid flowing out of the hole drilling machine 1000 can flow to the drill 2 through the reamer 3 and the connecting rod 4, flow out of the end of the drill 2, and finally flow to the reamer 3 along the hole being processed, thereby cooling the drill 2 and the reamer 3 and playing a role of dust removal.

It should be noted that the central axis of the first liquid injecting hole 22 and the central axis of the first rod 20 may coincide, that is, the first liquid injecting hole 22 is located at the center of the first rod 20, so as to avoid the offset of the first rod 20 during the operation, thereby ensuring the machining accuracy of the drill 2.

Of course, the central axis of the second pour hole 32 and the central axis of the second rod portion 30 may also coincide, and will not be described herein again.

It is to be understood that the disclosure is not limited in its application to the details of construction and the arrangements of the components set forth in the specification. The present disclosure is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications are within the scope of the present disclosure. It should be understood that the disclosure disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present disclosure. The embodiments described in this specification illustrate the best mode known for carrying out the disclosure and will enable those skilled in the art to utilize the disclosure.

Claims

1. The utility model provides a drilling reaming integrated device of constant resistance large deformation stock for processing shoulder hole, its characterized in that, drilling reaming integrated device includes:

a plurality of drill bits distributed along a straight line;

2. The integrated drilling and reaming device according to claim 1, wherein the number of the drill bits is two, and the two drill bits are a drill bit and a reamer respectively;

the reamer comprises a second rod part and a second head part; one end of the second rod part is provided with a connecting part which can be connected to a drilling machine; the other end of the second rod part is provided with the second head part, the second head part is provided with a second clamping part, the second clamping part can be clamped with the first clamping part, and the diameter of the second head part is larger than that of the first head part;

3. The drilling and reaming integrated device according to claim 2, wherein one of the first and second engaging portions comprises an internally threaded bore and the other comprises an externally threaded rod that mates with the internally threaded bore.

4. The drilling and reaming integrated device of claim 3, wherein the first engaging portion comprises the externally threaded rod and the second engaging portion comprises the internally threaded bore.

5. The integrated drill and reamer apparatus of claim 4 further comprising:

6. The drilling and reaming integrated device according to claim 5, wherein the number of the connecting rods is multiple.

7. The integrated drilling and reaming device according to claim 6, wherein the drill bit is provided with a first liquid injection hole which extends along the axial direction of the first rod part;

8. The drilling and reaming integrated device according to claim 7, wherein the central axis of the first liquid injection hole and the central axis of the first rod part coincide;

9. The drilling and reaming integrated apparatus of claim 2, wherein the first head comprises blades and slices;

10. The integrated drilling and reaming device of claim 3, wherein the second head comprises a base, a seat and a head;