CN209335840U - Drill bit assembly and drilling tool - Google Patents
Drill bit assembly and drilling tool Download PDFInfo
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- CN209335840U CN209335840U CN201821258045.9U CN201821258045U CN209335840U CN 209335840 U CN209335840 U CN 209335840U CN 201821258045 U CN201821258045 U CN 201821258045U CN 209335840 U CN209335840 U CN 209335840U
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- drill bit
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- drilling rod
- fixed hub
- bit assembly
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Abstract
The utility model provides a kind of drill bit assembly and drilling tool, drill bit assembly includes drilling rod, shield and fixed hub, one end of drilling rod is equipped with drill bit, shield is equipped with the through-hole passed through for drilling rod, fixed hub is fixedly installed in through-holes, drilling rod is threaded through in fixed hub, and drilling rod can rotate in fixed hub.When being drilled using the drill bit assembly of the utility model, shield can keep apart the clast that drill hole sprays, to ensure that the personal safety of staff, simultaneously because without having to worry about the splashing of clast, staff can also be more wholwe-hearted carry out bore operation, to improve the accuracy of drilling.
Description
Technical field
The utility model relates to hardware tool technology more particularly to a kind of drill bit assemblies and drilling tool.
Background technique
Drilling tool is the common a kind of tool of people's daily life, either in construction and decoration, industrial campus and family
Relatively broad application is all had in life.The working principle of drilling tool is to be driven under the drive of driving mechanism by transmission mechanism
Drilling bit high-speed rotation, to make drill bit scraping material surface, processes hole on the surface of object.
In oil/gas well production scene, it is often necessary to direction board be arranged to play the work of prompting, warning in some specific positions
With.Direction board is arranged on wall sometimes, generally requires to drill on wall by tools such as impact drills at this time, then pass through again
Swell fixture is inserted into the hole drilled out, to realize the fixation of direction board.
During drilling, drill bit is constantly sprayed from bore operation face with the clast generated between the walls, or even spray
It splashes on the body of operator or on the face, seriously affects the safety of operator and the accuracy of operation.
Utility model content
In order to overcome the drawbacks described above under the prior art, the purpose of this utility model is to provide a kind of drill bit assembly and brills
Tool, the drill bit assembly of the present embodiment can effectively prevent injury of the clast to operator in boring procedure, improve drilling
Accuracy.
The utility model provides a kind of drill bit assembly, including drilling rod, shield and fixed hub, and one end of the drilling rod is set
There is drill bit, the shield is equipped with the through-hole passed through for the drilling rod, and the fixed hub is fixedly installed in the through hole,
The drilling rod is threaded through in the fixed hub, and the drilling rod can rotate in the fixed hub.
Drill bit assembly as described above, optionally, the shield is in planar.
Drill bit assembly as described above is optionally formed with accommodating chamber, the opening court of the accommodating chamber in the shield
To the drill bit.
Drill bit assembly as described above, optionally, the shield include vertical backboard and are arranged in the vertical backboard
The horizontal supporting plate at both ends, the through-hole are arranged on the vertical backboard, two horizontal supporting plates and the vertical back
Plate surrounds the accommodating chamber jointly.
Drill bit assembly as described above, optionally, one section of the length that the fixed hub is located in the accommodating chamber are small
In the length being open equal to the through-hole to the accommodating chamber.
Drill bit assembly as described above, optionally, the shield are transparent shield.
Drill bit assembly as described above, optionally, the axis of the fixed hub are overlapped with the center line of the shield.
Drill bit assembly as described above, optionally, be additionally provided between the fixed hub and the drilling rod sliding bearing and
Rolling bearing.
Drill bit assembly as described above, optionally, the outside of the fixed hub are also arranged with flexible axle sleeve, described solid
Dead axle is put on equipped with mounting base, and one end of the elastic shaft sleeve is fixed in the mounting base, the other end of the elastic shaft sleeve
It supports on the drill bit.
The utility model also provides a kind of drilling tool, including shell, is equipped with driving device and transmission device, institute in the shell
The output end for stating driving device is connected with the transmission device, and the transmission device is equipped with clamping part, is equipped in the clamping part
As above any drill bit assembly.
Drill bit assembly and drilling tool provided by the utility model, drill bit assembly include drilling rod, shield and fixed hub, drilling rod
One end be equipped with drill bit, shield is equipped with the through-hole that passes through for drilling rod, and fixed hub is fixedly installed in through-holes, and drilling rod is worn
In fixed hub, and drilling rod can rotate in fixed hub.When being drilled using the drill bit assembly of the utility model, prevent
Shield can keep apart the clast that drill hole sprays, to ensure that the personal safety of staff, simultaneously because without load
The splashing of heart-broken bits, the carry out bore operation that staff can also be more wholwe-hearted, to improve the accuracy of drilling.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure diagram for the drill bit assembly that an embodiment of the present invention provides；
Fig. 2 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；
Fig. 3 is the structure diagram for the drill bit assembly that the utility model another embodiment provides；
Fig. 4 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；
Fig. 5 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；
Fig. 6 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides.
Appended drawing reference:
100- drilling rod；110- drill bit；
200- shield；The vertical backboard of 210-；
220- horizontal supporting plate；300- fixed hub；
310- mounting base；400- elastic shaft sleeve.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.In the absence of conflict, following implementation
Feature in example and embodiment can be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
It is connected directly, the mutual of connection inside two elements or two elements can also be can be indirectly connected through an intermediary
Interactively.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this as the case may be
Concrete meaning in type.
It should be noted that term " first ", " second " are only used for facilitating description different in the description of the present invention,
Component, be not understood to indicate or imply ordinal relation, relative importance or implicitly indicate indicated technical characteristic
Quantity." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.
Drilling tool is the common a kind of tool of people's daily life, either in construction and decoration, industrial campus and family
Relatively broad application is all had in life.The working principle of drilling tool is to be driven under the drive of driving mechanism by transmission mechanism
Drilling bit high-speed rotation, to make drill bit scraping material surface, processes hole on the surface of object.
In oil/gas well production scene, it is often necessary to direction board be arranged to play the work of prompting, warning in some specific positions
With.Direction board is arranged on wall sometimes, generally requires to drill on wall by tools such as impact drills at this time, then pass through again
Swell fixture is inserted into the hole drilled out, to realize the fixation of direction board.
During drilling, drill bit is constantly sprayed from bore operation face with the clast generated between the walls, or even spray
It splashes on the body of operator or on the face, seriously affects the safety of operator and the accuracy of operation.
In order to overcome the drawbacks described above under the prior art, the purpose of this utility model is to provide a kind of drill bit assembly and brills
Tool, the drill bit assembly of the present embodiment can effectively prevent injury of the clast to operator in boring procedure, improve drilling
Accuracy.
It is described below in conjunction with the detailed content to the utility model of attached drawing, so that those skilled in the art can
The more detailed content for understanding the utility model.
Embodiment one
Fig. 1 is the structure diagram for the drill bit assembly that an embodiment of the present invention provides；Please refer to Fig. 1.The present embodiment mentions
For a kind of drill bit assembly, including drilling rod 100, shield 200 and fixed hub 300, one end of drilling rod 100 is equipped with drill bit 110, prevents
Shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes, and drilling rod 100 is threaded through solid
In dead axle set 300, and drilling rod 100 can rotate in fixed hub 300.
Specifically, the drilling rod 100 in the present embodiment can select the form of any suitable in the prior art, drilling rod 100
One end is equipped with drill bit 110, and the other end of drilling rod 100 is free end, for being attached with drilling tool.
The material that any suitable in the prior art can be selected in shield 200 in the present embodiment is made, for example, shield 200
Plastics or metal can be selected, the shape of shield 200, which also can according to need, to be configured, in an optional embodiment
In, shield 200 is in planar, and the area of shield 200 is much larger than the sectional area of drilling rod 100, preferably to protect work
Personnel prevent clast when drilling from splashing to staff.
Further, shield 200 can be transparent shield, in order to which process of the staff to drilling is seen
It examines, understands the state of drilling.
In the present embodiment, in fixed hub 300 and to bore convenient for the relative motion between drilling rod 100 and fixed hub 300
It is additionally provided with sliding bearing and rolling bearing between bar 100, by the setting of sliding bearing and rolling bearing, can reduce fixing axle
Frictional resistance between set 300 and drilling rod 100, improves the flexibility of drill bit.
Drill bit assembly provided in this embodiment includes drilling rod 100, shield 200 and fixed hub 300, and the one of drilling rod 100
End is equipped with drill bit 110, and shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes,
Drilling rod 100 is threaded through in fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.Utilize the drill bit of embodiment
When component is drilled, shield 200 can keep apart the clast that drill hole sprays, to ensure that the person of staff
Safety, simultaneously because without having to worry about the splashing of clast, the carry out bore operation that staff can also be more wholwe-hearted, to improve
The accuracy of drilling.
Embodiment two
Fig. 2 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；Referring to figure 2..The present embodiment
A kind of drill bit assembly, including drilling rod 100, shield 200 and fixed hub 300 are provided, one end of drilling rod 100 is equipped with drill bit 110,
Shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes, and drilling rod 100 is threaded through
In fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.
Specifically, the drilling rod 100 in the present embodiment can select the form of any suitable in the prior art, drilling rod 100
One end is equipped with drill bit 110, and the other end of drilling rod 100 is free end, for being attached with drilling tool.
The material that any suitable in the prior art can be selected in shield 200 in the present embodiment is made, for example, shield 200
Plastics or metal can be selected, the shape of shield 200, which also can according to need, to be configured, in an optional embodiment
In, shield 200 is in planar, and the area of shield 200 is much larger than the sectional area of drilling rod 100, preferably to protect work
Personnel prevent clast when drilling from splashing to staff.
In the present embodiment, the axis of fixed hub 300 is overlapped with the center line of shield 200, is carrying out drilling work in this way
When industry, since the axis of fixed hub 300 is overlapped with the center line of shield 200, such drilling rod 100 is just threaded through shield
200 center position is stopped so that the clast for ejecting drill hole is more uniform by shield 200；And
And because the axis of fixed hub 300 is overlapped with the center line of shield 200, auxiliary can also be played to the positioning of drilling in this way
Effect, drilling when be more conducive to position.
Further, shield 200 can be transparent shield, in order to which process of the staff to drilling is seen
It examines, understands the state of drilling.
In the present embodiment, in fixed hub 300 and to bore convenient for the relative motion between drilling rod 100 and fixed hub 300
It is additionally provided with sliding bearing and rolling bearing between bar 100, by the setting of sliding bearing and rolling bearing, can reduce fixing axle
Frictional resistance between set 300 and drilling rod 100, improves the flexibility of drill bit.
Drill bit assembly provided in this embodiment includes drilling rod 100, shield 200 and fixed hub 300, and the one of drilling rod 100
End is equipped with drill bit 110, and shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes,
Drilling rod 100 is threaded through in fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.Utilize the drill bit of embodiment
When component is drilled, shield 200 can keep apart the clast that drill hole sprays, to ensure that the person of staff
Safety, simultaneously because without having to worry about the splashing of clast, the carry out bore operation that staff can also be more wholwe-hearted, to improve
The accuracy of drilling.
Embodiment three
Fig. 3 is the structure diagram for the drill bit assembly that the utility model another embodiment provides；Referring to figure 3..The present embodiment
A kind of drill bit assembly, including drilling rod 100, shield 200 and fixed hub 300 are provided, one end of drilling rod 100 is equipped with drill bit 110,
Shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes, and drilling rod 100 is threaded through
In fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.
Specifically, the drilling rod 100 in the present embodiment can select the form of any suitable in the prior art, drilling rod 100
One end is equipped with drill bit 110, and the other end of drilling rod 100 is free end, for being attached with drilling tool.
The material that any suitable in the prior art can be selected in shield 200 in the present embodiment is made, for example, shield 200
Plastics or metal can be selected, the shape of shield 200, which also can according to need, to be configured, in an optional embodiment
In, shield 200 can be in arbitrary shape, and the area of shield 200 is much larger than the sectional area of drilling rod 100, preferably to protect
Staff prevents clast when drilling from splashing to staff.Accommodating chamber is formed in shield 200, accommodating chamber
Towards drill bit 110, the open side for carrying out 200 accommodating chamber of shield when bore operation can prevent toward to work surface opening
The back side of 200 accommodating chamber of shield can be toward staff, and the clast that such drill hole splash comes out will be by shield 200
Stopped, and taken in the accommodating chamber of shield 200, avoided damaging operator or interfering, also ensure simultaneously
The neat and tidy of operation field；Electrostatic when drilling can also be isolated in accommodating chamber, improve the safety of production.
In the present embodiment, the axis of fixed hub 300 is overlapped with the center line of shield 200, is carrying out drilling work in this way
When industry, since the axis of fixed hub 300 is overlapped with the center line of shield 200, such drilling rod 100 is just threaded through shield
200 center position is stopped so that the clast for ejecting drill hole is more uniform by shield 200；And
And because the axis of fixed hub 300 is overlapped with the center line of shield 200, auxiliary can also be played to the positioning of drilling in this way
Effect, drilling when be more conducive to position.
Further, shield 200 can be transparent shield, in order to which process of the staff to drilling is seen
It examines, understands the state of drilling.
In the present embodiment, in fixed hub 300 and to bore convenient for the relative motion between drilling rod 100 and fixed hub 300
It is additionally provided with sliding bearing and rolling bearing between bar 100, by the setting of sliding bearing and rolling bearing, can reduce fixing axle
Frictional resistance between set 300 and drilling rod 100, improves the flexibility of drill bit.
Drill bit assembly provided in this embodiment includes drilling rod 100, shield 200 and fixed hub 300, and the one of drilling rod 100
End is equipped with drill bit 110, and shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes,
Drilling rod 100 is threaded through in fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.Utilize the drill bit of embodiment
When component is drilled, shield 200 can keep apart the clast that drill hole sprays, to ensure that the person of staff
Safety, simultaneously because without having to worry about the splashing of clast, the carry out bore operation that staff can also be more wholwe-hearted, to improve
The accuracy of drilling.
Example IV
Fig. 4 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；Referring to figure 4..The present embodiment
A kind of drill bit assembly, including drilling rod 100, shield 200 and fixed hub 300 are provided, one end of drilling rod 100 is equipped with drill bit 110,
Shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes, and drilling rod 100 is threaded through
In fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.
Specifically, the drilling rod 100 in the present embodiment can select the form of any suitable in the prior art, drilling rod 100
One end is equipped with drill bit 110, and the other end of drilling rod 100 is free end, for being attached with drilling tool.
The material that any suitable in the prior art can be selected in shield 200 in the present embodiment is made, for example, shield 200
Plastics or metal can be selected, the shape of shield 200, which also can according to need, to be configured, in an optional embodiment
In, shield 200 can be in arbitrary shape, and the area of shield 200 is much larger than the sectional area of drilling rod 100, preferably to protect
Staff prevents clast when drilling from splashing to staff.Accommodating chamber is formed in shield 200, accommodating chamber
Towards drill bit 110, the open side for carrying out 200 accommodating chamber of shield when bore operation can prevent toward to work surface opening
The back side of 200 accommodating chamber of shield can be toward staff, and the clast that such drill hole splash comes out will be by shield 200
Stopped, and taken in the accommodating chamber of shield 200, avoided damaging operator or interfering, also ensure simultaneously
The neat and tidy of operation field；Electrostatic when drilling can also be isolated in accommodating chamber, improve the safety of production.
Further, the shield 200 of the present embodiment includes vertical backboard 210 and vertical 210 both ends of backboard is arranged in
Horizontal supporting plate 220, through-hole are arranged on vertical backboard 210, and two horizontal supporting plates 220 and vertical backboard 210 surround jointly
Accommodating chamber.
In the present embodiment, the axis of fixed hub 300 is overlapped with the center line of shield 200, is carrying out drilling work in this way
When industry, since the axis of fixed hub 300 is overlapped with the center line of shield 200, such drilling rod 100 is just threaded through shield
200 center position is stopped so that the clast for ejecting drill hole is more uniform by shield 200；And
And because the axis of fixed hub 300 is overlapped with the center line of shield 200, auxiliary can also be played to the positioning of drilling in this way
Effect, drilling when be more conducive to position.
Further, shield 200 can be transparent shield, in order to which process of the staff to drilling is seen
It examines, understands the state of drilling.
In the present embodiment, in fixed hub 300 and to bore convenient for the relative motion between drilling rod 100 and fixed hub 300
It is additionally provided with sliding bearing and rolling bearing between bar 100, by the setting of sliding bearing and rolling bearing, can reduce fixing axle
Frictional resistance between set 300 and drilling rod 100, improves the flexibility of drill bit.
Drill bit assembly provided in this embodiment includes drilling rod 100, shield 200 and fixed hub 300, and the one of drilling rod 100
End is equipped with drill bit 110, and shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes,
Drilling rod 100 is threaded through in fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.Utilize the drill bit of embodiment
When component is drilled, shield 200 can keep apart the clast that drill hole sprays, to ensure that the person of staff
Safety, simultaneously because without having to worry about the splashing of clast, the carry out bore operation that staff can also be more wholwe-hearted, to improve
The accuracy of drilling.
Embodiment five
Fig. 5 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；Referring to figure 5..The present embodiment
A kind of drill bit assembly, including drilling rod 100, shield 200 and fixed hub 300 are provided, one end of drilling rod 100 is equipped with drill bit 110,
Shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes, and drilling rod 100 is threaded through
In fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.
Specifically, the drilling rod 100 in the present embodiment can select the form of any suitable in the prior art, drilling rod 100
One end is equipped with drill bit 110, and the other end of drilling rod 100 is free end, for being attached with drilling tool.
The material that any suitable in the prior art can be selected in shield 200 in the present embodiment is made, for example, shield 200
Plastics or metal can be selected, the shape of shield 200, which also can according to need, to be configured, in an optional embodiment
In, shield 200 can be in arbitrary shape, and the area of shield 200 is much larger than the sectional area of drilling rod 100, preferably to protect
Staff prevents clast when drilling from splashing to staff.Accommodating chamber is formed in shield 200, accommodating chamber
Towards drill bit 110, the open side for carrying out 200 accommodating chamber of shield when bore operation can prevent toward to work surface opening
The back side of 200 accommodating chamber of shield can be toward staff, and the clast that such drill hole splash comes out will be by shield 200
Stopped, and taken in the accommodating chamber of shield 200, avoided damaging operator or interfering, also ensure simultaneously
The neat and tidy of operation field；Electrostatic when drilling can also be isolated in accommodating chamber, improve the safety of production.
Further, the shield 200 of the present embodiment includes vertical backboard 210 and vertical 210 both ends of backboard is arranged in
Horizontal supporting plate 220, through-hole are arranged on vertical backboard 210, and two horizontal supporting plates 220 and vertical backboard 210 surround jointly
Accommodating chamber.
Further, fixed hub 300 is located at one section of length in accommodating chamber less than or equal to through-hole in the present embodiment
The length being open to accommodating chamber, can make drill bit 110 that can not stretch out shield 200, when shield 200 is covered in operation in this way
When on face, fixed hub 300 and to there are also certain distance, avoid fixed hub 300 to anti-between work surface
The influence of the sealing covering of shield 200, can also stablize drilling rod 100, improve the stability of drilling.
In the present embodiment, the axis of fixed hub 300 is overlapped with the center line of shield 200, is carrying out drilling work in this way
When industry, since the axis of fixed hub 300 is overlapped with the center line of shield 200, such drilling rod 100 is just threaded through shield
200 center position is stopped so that the clast for ejecting drill hole is more uniform by shield 200.
Further, shield 200 can be transparent shield, in order to which process of the staff to drilling is seen
It examines, understands the state of drilling.
In the present embodiment, in fixed hub 300 and to bore convenient for the relative motion between drilling rod 100 and fixed hub 300
It is additionally provided with sliding bearing and rolling bearing between bar 100, by the setting of sliding bearing and rolling bearing, can reduce fixing axle
Frictional resistance between set 300 and drilling rod 100, improves the flexibility of drill bit.
Drill bit assembly provided in this embodiment includes drilling rod 100, shield 200 and fixed hub 300, and the one of drilling rod 100
End is equipped with drill bit 110, and shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes,
Drilling rod 100 is threaded through in fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.Utilize the drill bit of embodiment
When component is drilled, shield 200 can keep apart the clast that drill hole sprays, to ensure that the person of staff
Safety, simultaneously because without having to worry about the splashing of clast, the carry out bore operation that staff can also be more wholwe-hearted, to improve
The accuracy of drilling.
Embodiment six
Fig. 6 is the structure diagram for the drill bit assembly that another embodiment of the utility model provides；Please refer to Fig. 6.The present embodiment
A kind of drill bit assembly is provided, the drill bit assembly of the present embodiment is in the outside of fixed hub 300 on the basis of above-described embodiment five
It is also arranged with elastic shaft sleeve 400, fixed hub 300 is equipped with mounting base 310, and one end of elastic shaft sleeve 400 is fixed on mounting base
On 310, the other end of elastic shaft sleeve 400 is supported on drill bit 110.It may be implemented by 400 one side of elastic shaft sleeve to drilling rod
Drill bit 110 on 100 implements thrust, reduces the risk of drill rod breaking, and clast is outside when on the other hand can also alleviate drilling
The velocity of discharge, to guarantee safety.Elastic shaft sleeve 400 can select spring or bellows etc..
Drill bit assembly provided in this embodiment includes drilling rod 100, shield 200 and fixed hub 300, and the one of drilling rod 100
End is equipped with drill bit 110, and shield 200 is equipped with the through-hole passed through for drilling rod 100, and fixed hub 300 is fixedly installed in through-holes,
Drilling rod 100 is threaded through in fixed hub 300, and drilling rod 100 can rotate in fixed hub 300.Utilize the drill bit of embodiment
When component is drilled, shield 200 can keep apart the clast that drill hole sprays, to ensure that the person of staff
Safety, simultaneously because without having to worry about the splashing of clast, the carry out bore operation that staff can also be more wholwe-hearted, to improve
The accuracy of drilling.
Embodiment seven
The present embodiment provides a kind of drilling tool, including shell, it is equipped with driving device and transmission device in shell, driving device
Output end is connected with transmission device, and transmission device is equipped with clamping part, is equipped with drill bit described in any embodiment as above in clamping part
Component.
Drilling tool provided in this embodiment, drill bit assembly include drilling rod, shield and fixed hub, and one end of drilling rod is equipped with
Drill bit, shield are equipped with the through-hole passed through for drilling rod, and fixed hub is fixedly installed in through-holes, and drilling rod is threaded through fixed hub
It is interior, and drilling rod can rotate in fixed hub.When being drilled using the drill bit assembly of the present embodiment, shield can will be bored
The clast sprayed at hole is kept apart, thus ensure that the personal safety of staff, simultaneously because without having to worry about the splashing of clast,
Staff can also be more wholwe-hearted carry out bore operation, to improve the accuracy of drilling.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of drill bit assembly, which is characterized in that including drilling rod, shield and fixed hub, one end of the drilling rod, which is equipped with, is bored
Head, the shield are equipped with the through-hole passed through for the drilling rod, and the fixed hub fixed setting is in the through hole, described
Drilling rod is threaded through in the fixed hub, and the drilling rod can rotate in the fixed hub.
2. drill bit assembly according to claim 1, which is characterized in that the shield is in planar.
3. drill bit assembly according to claim 1, which is characterized in that be formed with accommodating chamber, the receipts in the shield
The opening of cavity is towards the drill bit.
4. drill bit assembly according to claim 3, which is characterized in that the shield includes vertical backboard and is arranged in institute
State the horizontal supporting plate at vertical backboard both ends, the through-hole is arranged on the vertical backboard, two horizontal supporting plates and
The vertical backboard surrounds the accommodating chamber jointly.
5. drill bit assembly according to claim 4, which is characterized in that the fixed hub is located at one in the accommodating chamber
The length of section is less than or equal to the length that the through-hole is open to the accommodating chamber.
6. any drill bit assembly in -5 according to claim 1, which is characterized in that the shield is transparent shield.
7. any drill bit assembly in -5 according to claim 1, which is characterized in that the axis of the fixed hub with it is described
The center line of shield is overlapped.
8. any drill bit assembly in -5 according to claim 1, which is characterized in that the fixed hub and the drilling rod it
Between be additionally provided with sliding bearing and rolling bearing.
9. any drill bit assembly in -5 according to claim 1, which is characterized in that the outside of the fixed hub is also arranged
Flexible axle sleeve, the fixed hub are equipped with mounting base, and one end of the elastic shaft sleeve is fixed in the mounting base, described
The other end of elastic shaft sleeve is supported on the drill bit.
10. a kind of drilling tool, which is characterized in that including shell, driving device and transmission device, the driving are equipped in the shell
The output end of device is connected with the transmission device, and the transmission device is equipped with clamping part, is equipped with such as right in the clamping part
It is required that any drill bit assembly in 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821258045.9U CN209335840U (en) | 2018-08-06 | 2018-08-06 | Drill bit assembly and drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821258045.9U CN209335840U (en) | 2018-08-06 | 2018-08-06 | Drill bit assembly and drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209335840U true CN209335840U (en) | 2019-09-03 |
Family
ID=67743596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821258045.9U Active CN209335840U (en) | 2018-08-06 | 2018-08-06 | Drill bit assembly and drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209335840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802745A (en) * | 2018-08-06 | 2020-02-18 | 中国石油天然气股份有限公司 | Drill bit assembly and drilling tool |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802745A (en) * | 2018-08-06 | 2020-02-18 | 中国石油天然气股份有限公司 | Drill bit assembly and drilling tool |
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