CN208758683U - Steel rail stepped conical drill bit - Google Patents
Steel rail stepped conical drill bit Download PDFInfo
- Publication number
- CN208758683U CN208758683U CN201820707639.7U CN201820707639U CN208758683U CN 208758683 U CN208758683 U CN 208758683U CN 201820707639 U CN201820707639 U CN 201820707639U CN 208758683 U CN208758683 U CN 208758683U
- Authority
- CN
- China
- Prior art keywords
- cone
- drill bit
- rear end
- bit
- drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 229910000831 Steel Inorganic materials 0.000 title description 2
- 239000010959 steel Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000005553 drilling Methods 0.000 claims description 22
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 10
- 239000000284 extract Substances 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a conical drill of rail ladder, include: the straight shank bores the body, straight shank bores body front end welding straight shank drill bit, straight shank bores body rear end and is equipped with cone one and cone two, two diameters of cone are greater than cone one, straight shank bores the body with cone one cone two formula structures as an organic whole, two rear end joint of cone bore the tail groove, it is equipped with the apopore to bore the tail groove, it is equipped with the drill bit recess to bore tail groove rear end, drill bit recess rear end plane fretwork drill bit water filling hole, the drill bit water filling hole runs through the drill bit recess with it communicates with each other to bore the tail groove. The utility model has the advantages that: structural design is reasonable, convenient to use, and the pin of being convenient for is fixed, and the rainwater is also difficult for the infiltration, also extracts relatively easily when the pin is pulled out in the maintenance, has both guaranteed safety, has also reduced cost of maintenance.
Description
Technical field
The utility model relates to the utility model relates to one kind exclusively in construction of railways, maintenance, when giving the drilling of the rail
A kind of drill bit used, and in particular to rail ladder circle taper bit.
Background technique
The drill bit for construction of railways, maintenance is mostly straight shank drill in the prior art, and the size at drill bit front and rear portion is all
Equally, railway is in construction, maintenance at present, the straight shank drill drilling all used, and the pin of railway connecting line is cone,
Very laborious when fixing pin, in railway maintenance, pin is difficult to extract again.
The hole bored at present using straight shank drill, and rail connecting line pin when with straight shank drill size, is used in cone
The middle part size of rail connecting line pin, the hole front drilled out is just and pin is not closely connected, is not connected firmly, around there is gap,
Rainwater can penetrate into the inside when raining, over time can rust corrosion, the rear portion in hole is since pin diameter is big, rail pin rear portion
As riveting is the same on rail, when pin is replaced in maintenance afterwards, rail pin is difficult to take out.It takes a lot of time and generation
Valence could take out, and such as be chosen pin with hydraulic extractor, and hydraulic extractor price is high, weight weight, and it is also inconvenient to carry, and have more
The hydraulic extractor of pin do not take not come out yet.
Utility model content
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of rail ladder circle taper bit, solution
The hole drilled out in the prior art of having determined is fixation that straight hole is not easy tapered dowel, and the technology that replacement pin difficulty is taken out when maintenance
Problem.
In order to achieve the above object, the technical solution adopted in the utility model are as follows:
A kind of rail ladder circle taper bit, comprising: staight shank drill body, the staight shank drill body head weld straight shank drill, institute
Staight shank drill body rear end is stated equipped with cone one and cone two, two diameter of cone is greater than the cone one, described straight
Handle drill body is an integral structure with the cone one, the cone two, and two rear end of cone is clamped drilling tail slot, described
Drilling tail slot is equipped with apopore, and drilling tail slot rear end is equipped with bit grooves, the bit grooves back plan hollow out drill bit water filling
Hole, the drill bit water injection hole are communicated through the bit grooves with the drilling tail slot.
To the utility model further description, the staight shank drill body, the cone one and two diameter of cone
Respectively 13.1mm, 13.2mm and 13.3mm.
To the utility model further description, the apopore circular row passes through institute in the drilling tail slot, the apopore
Drilling tail slot is stated to communicate with the drill bit water injection hole.
To the utility model further description, the staight shank drill body and the cone one, the cone two are spiral shell
Revolve shape.
To the utility model further description, the straight shank drill is also helical form.
Compared with prior art, the advantages of the utility model: it is reasonable in design, it is easy to use, due to drill bit front straight
Diameter is small, and rearward diameter is big, and the hole drilled out is just conical, convenient for the fixation of pin, such as when replacing pin, because hole is at circular cone
Shape is also convenient for pin to take out, since the material of pin is softer than steel rail material, the hole drilled out with ladder circle taper bit,
Front and back diameter is all smaller than pin, and all very closely securely, rainwater is also not easy to penetrate into, when pin is chosen in maintenance for entire pin and rail
Also it is easier to extract, both ensure that safety, also reduce maintenance cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Appended drawing reference: 1, straight shank drill；2, staight shank drill body；3, cone one；4, cone two；5, drilling tail slot；6, drill bit
Groove；7, drill bit water injection hole；8, apopore.
Specific embodiment
Below in conjunction with attached drawing, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, fall within the protection scope of the utility model.
Embodiment 1, as shown in Figure 1:
A kind of rail ladder circle taper bit, comprising: straight shank drill 1, staight shank are welded in staight shank drill body 2,2 front end of staight shank drill body
2 rear end of drill body is equipped with cone 1 and cone 24, and 24 diameter of cone is greater than cone 1, staight shank drill body 2 and circular cone
Body 1, cone 24 are an integral structure, and 24 rear end of cone is clamped drilling tail slot 5, and drilling tail slot 5 is equipped with apopore 8, drilling tail
5 rear end of slot is equipped with bit grooves 6, and 6 back plan hollow out drill bit water injection hole 7 of bit grooves, it is recessed that drill bit water injection hole 7 runs through drill bit
Slot 6 is communicated with drilling tail slot 5.
A kind of optimal technical scheme of the present embodiment, staight shank drill body 2, cone 1 and 24 diameter of cone are distinguished
13.1mm, 13.2mm and 13.3mm.
A kind of optimal technical scheme of the present embodiment, 8 circular row of apopore in drilling tail slot 5, apopore 8 by drilling tail slot 5 with
Drill bit water injection hole 7 communicates.
A kind of optimal technical scheme of the present embodiment, staight shank drill body 2 and cone 1, cone 24 are helical form.
A kind of optimal technical scheme of the present embodiment, straight shank drill 1 are also helical form.
In the present embodiment, start to drill by 1 straight shank drill, when drilling, staight shank drill body 2 and cone 1, cone
24 diameter is sequentially increased, and is then filled the water inwards by drill bit water injection hole 7, and water flow is flowed out by apopore 8, reduces drill bit heat
Staight shank drill body 2 and bit grooves 6 are closely linked by degree, drilling tail slot 5, it is therefore prevented that broken drill, the hole drilled out at this time are in
Ladder cone shape.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of rail ladder circle taper bit, comprising: staight shank drill body (2), which is characterized in that staight shank drill body (2) front end
It welds straight shank drill (1), staight shank drill body (2) rear end is equipped with cone one (3) and cone two (4), the cone two
(4) diameter is greater than the cone one (3), and the staight shank drill body (2) is with the cone one (3), the cone two (4)
Integral structure, cone two (4) rear end are clamped drilling tail slot (5), and the drilling tail slot (5) is equipped with apopore (8), the brill
Stern notch (5) rear end is equipped with bit grooves (6), bit grooves (6) the back plan hollow out drill bit water injection hole (7), the drill bit
Water injection hole (7) is communicated through the bit grooves (6) with the drilling tail slot (5).
2. a kind of rail ladder circle taper bit according to claim 1, which is characterized in that the staight shank drill body (2), institute
Stating cone one (3) and cone two (4) diameter is respectively 13.1mm, 13.2mm and 13.3mm.
3. a kind of rail ladder circle taper bit according to claim 1, which is characterized in that apopore (8) circular row
In the drilling tail slot (5), the apopore (8) is communicated by the drilling tail slot (5) with the drill bit water injection hole (7).
4. a kind of rail ladder circle taper bit according to claim 1, which is characterized in that the staight shank drill body (2) with
The cone one (3), the cone two (4) are helical form.
5. a kind of rail ladder circle taper bit according to claim 4, which is characterized in that the straight shank drill (1)
For helical form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820707639.7U CN208758683U (en) | 2018-05-14 | 2018-05-14 | Steel rail stepped conical drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820707639.7U CN208758683U (en) | 2018-05-14 | 2018-05-14 | Steel rail stepped conical drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208758683U true CN208758683U (en) | 2019-04-19 |
Family
ID=66126810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820707639.7U Active CN208758683U (en) | 2018-05-14 | 2018-05-14 | Steel rail stepped conical drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208758683U (en) |
-
2018
- 2018-05-14 CN CN201820707639.7U patent/CN208758683U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |