CN208950496U - Drill bit and rotary drilling rig - Google Patents
Drill bit and rotary drilling rig Download PDFInfo
- Publication number
- CN208950496U CN208950496U CN201821852804.4U CN201821852804U CN208950496U CN 208950496 U CN208950496 U CN 208950496U CN 201821852804 U CN201821852804 U CN 201821852804U CN 208950496 U CN208950496 U CN 208950496U
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- drill bit
- body part
- connector
- enlarged portion
- tooth
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- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 35
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
The utility model relates to rotary drilling rig equipment technical field more particularly to a kind of drill bits and rotary drilling rig.Drill bit includes body part, head and enlarged portion；Wherein, body part is used to cooperate with drilling rod, and head is connected to the bottom end of body part, and enlarged portion is connected to the side of body part；Head is provided with directed downwardly first and bores tooth, and the radius on head is less than the radius of the inner tube wall of casing；Enlarged portion can opposing body portion expand outwardly and to contract, enlarged portion is provided with the second brill tooth, and enlarged portion second brill tooth in expansion is arranged outwardly, and second bores the outermost end of tooth at a distance from the central axis of body part equal to the radius size of the outer tube wall of casing；When enlarged portion is shunk, the second outermost end for boring tooth is less than the radius of the inner tube wall of casing at a distance from the central axis of body part.Rotary drill digging machine includes above-mentioned drill bit.Drill bit and rotary drill digging machine provided by the utility model, cost is relatively low, and structure is simple, convenient for operation.
Description
Technical field
The utility model relates to rotary drilling rig equipment technical field more particularly to a kind of drill bits and rotary drilling rig.
Background technique
In the work progress of many stake holes, due to Geological Reasons or construction requirement, lower casing is needed to construct.
Currently, being typically all to pressurize plus turn round for casing to be pressed into soil on casing first with lower casing device, then again
It is constructed in casing using drill bit, soil taking hole forming, a whole set of structure is more complex, inconvenient；Lower casing device is rotary drilling rig
Apolegamy, needs extra purchase, therefore, increase equipment cost.
To sum up, how to overcome the drawbacks described above of existing rotary drilling rig is that those skilled in the art's technology urgently to be resolved is asked
Topic.
Utility model content
The purpose of this utility model is to provide a kind of drill bit and rotation digging machines, to alleviate rotary drilling rig in the prior art
Existing structure is complicated, inconvenient and at high cost technical problem.
Drill bit provided by the utility model, including body part, head and enlarged portion.
Wherein, the body part is used to cooperate with drilling rod, and the head is connected to the bottom end of the body part, the expansion
Portion is connected to the side of the body part；The head is provided with directed downwardly first and bores tooth, and the radius on the head is less than shield
The radius of the inner tube wall of cylinder.
The enlarged portion can the relatively described body part expand outwardly and to contract, the enlarged portion is provided with the second brill
Tooth, the enlarged portion expansion when described in second brill tooth be arranged outwardly, and it is described second bore tooth outermost end and the body part
Central axis distance be equal to casing outer tube wall radius size；When the enlarged portion is shunk, described second bores tooth most
Outer end is at a distance from the central axis of the body part less than the radius of the inner tube wall of casing.
Preferably, as an embodiment, the body part includes upper body portion and lower body portion, the upper body
Portion can the relatively described lower body portion move up and down, the head is mounted on the bottom end in the lower body portion.
The enlarged portion includes the first connector and the second connector, and first connector and the upper body portion are cut with scissors
It connects, second connector and the lower body portion are hinged, and first connector and second connector are hinged, described
Second brill tooth is mounted on first connector or second connector.
Preferably, as an embodiment, first connector is to be formed by the first bar portion and the second bar portion
Angular structure, one end of first bar portion and second connector are hinged, and the other end and the upper body portion are hinged, described
Second brill tooth is mounted in second bar portion.
Preferably, as an embodiment, the angle of first bar portion and second bar portion is greater than 90 degree.
Preferably, as an embodiment, second connector is rod-like structure, and second connector
End and first bar portion are hinged.
Preferably, as an embodiment, it is provided with spring between the upper body portion and the lower body portion, and
The spring is in nature when the enlarged portion is shunk, and the spring is compressed when the enlarged portion is expanded.
Preferably, as an embodiment, aperture blind hole directed downwardly, the spring are offered in the upper body portion
One end extend into the blind hole, the other end is connect with the lower body portion.
Preferably, as an embodiment, there are two the enlarged portions, and two enlarged portions are symmetricly set on
The two sides of the body part.
Preferably, as an embodiment, it is described second brill tooth have it is multiple, and it is multiple it is described second bore tooth by upper and
It is lower to be arranged in the enlarged portion.
Correspondingly, the utility model additionally provides a kind of rotary press, including above-mentioned drill bit, and it further include rotary drill rod, institute
The body part for stating drill bit is mounted on the bottom end of the rotary drill rod.
Compared with the prior art, the advantages of the utility model are:
First brill tooth of drill bit provided by the utility model, head is able to carry out drilling, and enlarged portion is in opposing body portion
When expanding outwardly, the second brill tooth can expand the hole that the first brill tooth is bored.
In use, first covering casing in the top of the enlarged portion of drill bit, then enlarged portion opposing body portion is expanded outwardly,
Start to drill；During drilling, the first of head bores the lesser hole of the first drilling bore hole diameter of tooth meeting, and the second of enlarged portion bores tooth meeting
After the hole that first brill tooth drills out is expanded to size needed for casing, so that casing is able to enter the hole that the second brill tooth drills out, with
Going deep into for drill bit, casing also can and then be deep into hole；When drill bit needs are extracted out from hole, by enlarged portion opposing body portion
To contract, so that the in enlarged portion second outermost end for boring tooth is less than the interior of casing at a distance from the central axis of body part
The radius size of barrel, because head radius again smaller than casing inner tube wall radius size, therefore, drill bit can be along casing
It is extracted out from the inside of casing.
Therefore, drill bit provided by the utility model can be realized during boring extracting soil, casing be put into hole,
And can be extracted out from casing, that is, it does not need to be equipped with lower casing device, reduce costs, simplify structure, operate simpler.
Rotary drilling rig provided by the utility model has the advantages that all of above-mentioned drill bit because including above-mentioned drill bit, at
This is lower, and structure is simple, convenient for operation.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is positive structure diagram of the drill bit provided by the embodiment of the utility model when enlarged portion is shunk；
Fig. 2 is positive structure diagram of the drill bit provided by the embodiment of the utility model when enlarged portion is expanded.
Icon: the head 1-；The first connector of 2-；The second connector of 3-；4- first bores tooth；5- second bores tooth；6-
Upper body portion；7- lower body portion；8- spring；
The first bar portion of 21-；The second bar portion of 22-；
61- blind hole.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "vertical", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this reality
It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first " and " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1 and Fig. 2, the present embodiment one provides a kind of drill bit, including body part, head 1 and enlarged portion.
Wherein, the body part is used to cooperate with drilling rod, and the head 1 is connected to the bottom end of the body part, the expansion
The portion of opening is connected to the side of the body part；The head 1 is provided with directed downwardly first and bores tooth 4, and the radius on the head 1 is small
In the radius of the inner tube wall of casing.
The enlarged portion can the relatively described body part expand outwardly and to contract, the enlarged portion is provided with the second brill
Tooth 5, the enlarged portion expansion when described in second brill tooth 5 be arranged outwardly, and it is described second bore tooth 5 outermost end and the ontology
The distance of the central axis in portion is equal to the radius size of the outer tube wall of casing；When the enlarged portion is shunk, described second bores tooth 5
Outermost end is at a distance from the central axis of the body part less than the radius of the inner tube wall of casing.
First brill tooth 4 of the drill bit that the present embodiment one provides, head 1 is able to carry out drilling, and enlarged portion is in opposing body
When portion expands outwardly, the second brill tooth 5 can expand the hole that the first brill tooth 4 is bored.
In use, first covering casing in the top of the enlarged portion of drill bit, then enlarged portion opposing body portion is expanded outwardly,
Start to drill；During drilling, the first of head 1 bores the lesser hole of the first drilling bore hole diameter of the meeting of tooth 4, and the second of enlarged portion bores tooth
After the hole that first brill tooth 4 drills out can be expanded to size needed for casing by 5, so that casing is able to enter what the second brill tooth 5 drilled out
Hole, with going deep into for drill bit, casing also can be and then deep into hole；It is when drill bit needs are extracted out from hole, enlarged portion is opposite
Body part is to contract, so that the outermost end of the second brill tooth 5 in enlarged portion is less than at a distance from the central axis of body part
The radius size of the inner tube wall of casing, because head 1 radius again smaller than casing inner tube wall radius size, therefore, drill bit energy
It is enough to be extracted out along casing from the inside of casing.
Therefore, the drill bit that the present embodiment one provides, can be realized during boring extracting soil, casing is put into hole,
And can be extracted out from casing, that is, it does not need to be equipped with lower casing device, reduce costs, simplify structure, operate simpler.
Embodiment two
Referring to Fig. 1 and Fig. 2, the present embodiment two provides a kind of drill bit, while also using the brill in above-described embodiment one
The technical pattern relationship of head；Such as: the present embodiment two provides a kind of drill bit, including body part, head 1 and enlarged portion；Wherein,
The body part is used to cooperate with drilling rod, and the head 1 is connected to the bottom end of the body part, and the enlarged portion is connected to described
The side of body part；The head 1 is provided with directed downwardly first and bores tooth 4, and the radius on the head 1 is less than the inner tube wall of casing
Radius；The enlarged portion can the relatively described body part expand outwardly and to contract, the enlarged portion is provided with the second brill
Tooth 5, the enlarged portion expansion when described in second brill tooth 5 be arranged outwardly, and it is described second bore tooth 5 outermost end and the ontology
The distance of the central axis in portion is equal to the radius size of the outer tube wall of casing；When the enlarged portion is shunk, described second bores tooth 5
Outermost end is at a distance from the central axis of the body part less than the radius of the inner tube wall of casing.
The drill bit that the present embodiment two provides is identical as the primary structure of drill bit in embodiment one；But the present embodiment
Two drill bits provided have further related to specific structure design.The present embodiment two is unlike above-described embodiment one: the present embodiment
Drill bit in two has more specific structure features to specific structure；Such as: some technical characteristics are increased, and to this
The specific structure of body portion and enlarged portion has carried out further restriction.
The specific structure and technical effect of technical solution in relation to the present embodiment two are as follows:
It is specifically provided with upper body portion 6 and lower body portion 7 in the structure of body part, and head 1 is mounted on lower body
Upper body portion 6 is configured to opposite lower body portion 7 and moved up and down by the bottom end in portion 7；Include in the specific structure of enlarged portion
There are the first connector 2 and the second connector 3, the second brill tooth 5 is mounted on the first connector 2 or the second connector 3, by first
Connector 2 and upper body portion 6 are hinged, and the second connector 3 and lower body portion 7 is hinged, and the first connector 2 is connect with second
Part 3 is hinged.
When enlarged portion needs to expand, upper body portion 6 can be pressed down, so that upper body portion 6 is downwards with respect to lower body portion 7
It is mobile, drive the first connector 2 second connector 3 opposite with the hinge joint in upper body portion 6 and the hinge joint in lower body portion 7 downward
It is mobile, thus, so that the central axis in 3 opposing body portion of the first connector 2 and the second connector is swung out, and then drive the
Two brill teeth 5 are displaced outwardly relative to the central axis of body part, and whole process need to only press upper body portion 6, and in drill bit
During drilling, originally need to give brill first downward power, it is very easy without additionally increasing other external force.
When enlarged portion is in expansion state, the second outer end for boring tooth 5 can should incite somebody to action as far as possible on a vertical line, therefore
First connector 2 is set as the angular structure formed by the first bar portion 21 and the second bar portion 22, and by one end of the first bar portion 21
Hinged with the second connector 3, the other end and upper body portion 6 are hinged, and the second brill tooth 5 is mounted in the second bar portion 22, so that the
Two brill teeth 5 can be set as consistent size, convenient for improving the structural stability of enlarged portion, and it is easy to process.
Further, the angle of the first bar portion 21 and the second bar portion 22 can be set greater than 90 degree, is connected with reducing first
The stress of fitting 2 and the second connector 3 suffered by second bores during tooth 5 drills, prolongs the service life.
Particularly, the second connector 3 can be set to rod-like structure, and by the end of the second connector 3 and the first bar portion
21 is hinged, reduces the use of material.
Preferably, spring 8 can be set between upper body portion 6 and lower body portion 7, and spring 8 is shunk in enlarged portion
When be in nature, compressed in enlarged portion expansion, thus, when drill bit needs to take out, load pressure in upper body portion 6
Power meeting nature is eliminated, at this point, the spring 8 in compressive state can give 6 one, upper body portion upward elastic force, assists upper body portion
6 opposite lower body portions 7 move up, and in order to which enlarged portion returns to contraction state, guarantee that drill bit can be extracted out smoothly out of casing.
Specifically, aperture blind hole 61 directed downwardly can be opened up in upper body portion 6, and one end of spring 8 is extend into blind hole 61
In, the other end is connect with lower body portion 7, blind hole 61 is capable of the deformation direction of limited spring 8, and prevent spring 8 towards lateral deformation,
And the bottom hole of blind hole 61 can when enlarged portion needs to expand pressuring spring 8 make spring 8 compression deformation occurs.
Preferably, enlarged portion can be set to two, and two enlarged portions are symmetricly set on to the two sides of body part, with
Second in enlarged portion bores tooth 5 during reaming, improves the stress balance degree of drill bit, reduces what drill bit shook in casing
Amplitude, and the central axis in the hole processed can be enabled to be better maintained on same straight line.
In specific structure, can by second in enlarged portion bore tooth 5 be set as multiple, and will it is multiple second brill teeth 5 by upper and
It is lower to be arranged in enlarged portion, to improve the smoothness for the hole wall that the second brill tooth 5 processes.
Embodiment three
Correspondingly, referring to Fig. 1 and Fig. 2, the present embodiment three provides a kind of rotary drilling rig comprising in above-described embodiment two
The drill bit (specific structure of the drill bit no longer repeats one by one) being related to also while including rotary drill rod, the body part of the drill bit
It is mounted on the bottom end of the rotary drill rod.
The rotary drilling rig that the present embodiment three provides, has above-described embodiment because including the drill bit in above-described embodiment two
All advantages of drill bit in one, cost is relatively low, and structure is simple, convenient for operation.
In conclusion the utility model embodiment discloses a kind of drill bit and rotary drilling rig, which overcome traditional rotary diggings
Many technological deficiencies of drilling machine.Drill bit and rotary drilling rig provided by the embodiment of the utility model, cost is relatively low, and structure is simple, just
In operation.
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.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is practical new in this
Within the scope of type and form different embodiments.For example, in claims above, embodiment claimed
It is one of any can in any combination mode come using.The information disclosed in the background technology section is intended only to deepen
Understanding to the general background technology of the utility model, and be not construed as recognizing or implying in any form that the information is constituted
The prior art known to those skilled in the art.In addition, it will be appreciated by those of skill in the art that although described herein
Some embodiments include certain features included in other embodiments rather than other feature, but the spy of different embodiments
The combination of sign means within the scope of the utility model and forms different embodiments.For example, in right above
In claim, embodiment claimed it is one of any can in any combination mode come using.It is disclosed in the back
The information of scape technology segment is merely intended to deepen the understanding to the general background technology of the utility model, and is not construed as holding
Recognize or implies that the information constitutes the prior art known to those skilled in the art in any form.
Claims (10)
1. a kind of drill bit, which is characterized in that including body part, head and enlarged portion；
Wherein, the body part is used to cooperate with drilling rod, and the head is connected to the bottom end of the body part, and the enlarged portion connects
It connects in the side of the body part；The head is provided with directed downwardly first and bores tooth, and the radius on the head is less than casing
The radius of inner tube wall；
The enlarged portion can the relatively described body part expand outwardly and to contract, the enlarged portion is provided with the second brill tooth,
The enlarged portion expansion when described in second brill tooth be arranged outwardly, and it is described second bore tooth outermost end and the body part in
The distance of mandrel line is equal to the radius size of the outer tube wall of casing；When the enlarged portion is shunk, described second bores the outermost end of tooth
With the radius for the inner tube wall for being less than casing at a distance from the central axis of the body part.
2. drill bit according to claim 1, which is characterized in that the body part includes upper body portion and lower body portion, institute
State upper body portion can the relatively described lower body portion move up and down, the head is mounted on the bottom end in the lower body portion；
The enlarged portion includes the first connector and the second connector, and first connector and the upper body portion are hinged, institute
It states the second connector and the lower body portion is hinged, and first connector and second connector are hinged, described second
Tooth is bored to be mounted on first connector or second connector.
3. drill bit according to claim 2, which is characterized in that first connector is by the first bar portion and the second bar portion
The angular structure of formation, one end of first bar portion and second connector are hinged, and the other end and the upper body portion are cut with scissors
It connects, the second brill tooth is mounted in second bar portion.
4. drill bit according to claim 3, which is characterized in that the angle of first bar portion and second bar portion is greater than
90 degree.
5. drill bit according to claim 3, which is characterized in that second connector is rod-like structure, and described second
The end of connector and first bar portion are hinged.
6. according to the described in any item drill bits of claim 2-5, which is characterized in that the upper body portion and the lower body portion
Between be provided with spring, and the spring is in nature when the enlarged portion is shunk, and the spring expands in the enlarged portion
It is compressed when opening.
7. drill bit according to claim 6, which is characterized in that aperture blind hole directed downwardly is offered in the upper body portion,
One end of the spring is extend into the blind hole, and the other end is connect with the lower body portion.
8. drill bit according to claim 1-5, which is characterized in that there are two the enlarged portions, and described in two
Enlarged portion is symmetricly set on the two sides of the body part.
9. drill bit according to claim 1-5, which is characterized in that the second brill tooth has multiple, and multiple institutes
The second brill tooth is stated from top to bottom to be arranged in the enlarged portion.
10. a kind of rotary drilling rig, which is characterized in that further include rotation including such as described in any item drill bits of claim 1-9
Drilling rod, the body part of the drill bit are mounted on the bottom end of the rotary drill rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821852804.4U CN208950496U (en) | 2018-11-09 | 2018-11-09 | Drill bit and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821852804.4U CN208950496U (en) | 2018-11-09 | 2018-11-09 | Drill bit and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950496U true CN208950496U (en) | 2019-06-07 |
Family
ID=66744504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821852804.4U Active CN208950496U (en) | 2018-11-09 | 2018-11-09 | Drill bit and rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950496U (en) |
-
2018
- 2018-11-09 CN CN201821852804.4U patent/CN208950496U/en active Active
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