CN204851071U - Colliery ventilation is pricked both wings and is expanded subdrilling head - Google Patents
Colliery ventilation is pricked both wings and is expanded subdrilling head Download PDFInfo
- Publication number
- CN204851071U CN204851071U CN201520622060.7U CN201520622060U CN204851071U CN 204851071 U CN204851071 U CN 204851071U CN 201520622060 U CN201520622060 U CN 201520622060U CN 204851071 U CN204851071 U CN 204851071U
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- CN
- China
- Prior art keywords
- wing
- auger spindle
- main auger
- connecting portion
- outer wing
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the drill bit, especially, relate to colliery ventilation is pricked both wings and is expanded subdrilling head, including main auger spindle, one side of main auger spindle is equipped with first outer wing, first inner wing, and the opposite side is equipped with second outer wing, second inner wing, the side of first outer wing is equipped with first spacing boss, be equipped with first pick in the first spacing boss, the side of second outer wing is equipped with the spacing boss of second, be equipped with the second pick in the spacing boss of second, the side of first inner wing is equipped with first center post, be equipped with first bearing on the first center post, the side of second inner wing is equipped with the second center post, be equipped with the second bearing on the second center post, the other both sides of main auger spindle all are equipped with the reinforcing plate, be equipped with the strengthening rib on the reinforcing plate, the top of reinforcing plate is equipped with connecting portion, the bottom of reinforcing plate is equipped with down connecting portion, upward connecting portion, lower connecting portion pass through the bolt fastening on main auger spindle.
Description
Technical field
The utility model belongs to bit technique field, particularly relates to coalmine ventilation and pricks both wings bottom expanding drill.
Background technology
Bottom expanding drill refers to the drill bit of expanded bore pile of constructing in rotary drilling, is generally made up of the expansion end wing, pressure frame, connecting rod, base and bearing pin.Expand the end wing and have both wings, three wings or four wings, under drilling tool Gravitative Loads, make when rig turns round the wing at the bottom of expansion open gradually, cut hole wall and carry out at the bottom of expansion.At present, bottom expanding drill is extensively extended to various Grouting Pile Engineering of Drilling Hole, therefore carries out technically inquiring into very important meaning to the preparation of construction of bottom expanding drill and conventional plain construction technology.During construction, select different drill bit according to different soil, geological conditions by following regulation: short spiral drill, be applicable to the cohesive soil of more than groundwater table, silt, banket, medium closely knit above sand, weathered rock formation.Rock core augers, is applicable to gravelly soil, medium-hard rock and weathered rock formation.Rock core rotary bucket, is applicable to weathered rock formation and has the rock of crackle.The both wings bottom expanding drill of current practical application, both wings only have pick carry out cutting and excavate, the rubble produced after digging can produce resistance along the space of both wings to excavating equipment, and implementation result is not good.
Summary of the invention
The utility model provides and coalmine ventilation pricks both wings bottom expanding drills, to solve the rubble that proposes in above-mentioned background technology to produce resistance problem to excavating equipment.
The technical problem that the utility model solves realizes by the following technical solutions: the utility model provides and coalmine ventilation pricks both wings bottom expanding drill, it is characterized in that: comprise main auger spindle, the side of described main auger spindle is provided with the first outer wing, first inner wing, opposite side is provided with the second outer wing, second inner wing, the side of described first outer wing is provided with the first positive stop lug boss, the first pick is provided with in described first positive stop lug boss, the side of described second outer wing is provided with the second positive stop lug boss, the second pick is provided with in described second positive stop lug boss, the side of described first inner wing is provided with the first central post, described first central post is provided with clutch shaft bearing, the side of described second inner wing is provided with the second central post, described second central post is provided with the second bearing, the other both sides of described main auger spindle are equipped with stiffener, described stiffener is provided with reinforcing rib, the top of described stiffener is provided with connecting portion, the bottom of described stiffener is provided with lower connecting portion, described upper connecting portion, lower connecting portion is bolted on main auger spindle, the bottom of described main auger spindle is connected with overhead gage, junction plate is provided with between described overhead gage and main auger spindle, yielding rubber post is provided with below described overhead gage, lower baffle plate is provided with below described yielding rubber post, adpting flange is provided with below described lower baffle plate, the top of described main auger spindle is provided with digging wheel, mining head is provided with above described digging wheel.
Described first outer wing, the second outer wing are symmetrical arranged.
Described first inner wing, the second inner wing are symmetrical arranged.
The beneficial effects of the utility model are: the technical program increases by two inner wings by the inside of two outer wings, and bearing is set on inner wing, effectively can reduce the rubble after cutting to the impact of excavating equipment, the normal use of guarantee equipment, extend application life, implementation result is ideal, and the rubber column of bottom can play the effect of damping, and the stiffener of both sides can play the protective action to inner wing, outer wing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: the main auger spindle of 1-, 2-first outer wing, 3-first inner wing, 4-second outer wing, 5-second inner wing, 6-first positive stop lug boss, 7-first pick, 8-second positive stop lug boss, 9-second pick, 10-first central post, 11-clutch shaft bearing, 12-second central post, 13-second bearing, 14-stiffener, 15-reinforcing rib, the upper connecting portion of 16-, connecting portion under 17-, 18-bolt, 19-digging wheel, 20-mining head, 21-overhead gage, 22-junction plate, 23-yielding rubber post, 24-lower baffle plate, 25-adpting flange.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
The present embodiment comprises main auger spindle 1, the side of main auger spindle 1 is provided with the first outer wing 2, first inner wing 3, opposite side is provided with the second outer wing 4, second inner wing 5, the side of the first outer wing 2 is provided with the first positive stop lug boss 6, the first pick 7 is provided with in first positive stop lug boss 6, the side of the second outer wing 4 is provided with the second positive stop lug boss 8, the second pick 9 is provided with in second positive stop lug boss 8, the side of the first inner wing 3 is provided with the first central post 10, first central post 10 is provided with clutch shaft bearing 11, the side of the second inner wing 5 is provided with the second central post 12, second central post 12 is provided with the second bearing 13, the other both sides of main auger spindle 1 are equipped with stiffener 14, stiffener 14 is provided with reinforcing rib 15, the top of stiffener 14 is provided with connecting portion 16, the bottom of stiffener 14 is provided with lower connecting portion 17, upper connecting portion 16, lower connecting portion 17 is fixed on main auger spindle 1 by bolt 18, the bottom of main auger spindle 1 is connected with overhead gage 21, junction plate 22 is provided with between overhead gage 21 and main auger spindle 1, yielding rubber post 23 is provided with below overhead gage 21, lower baffle plate 24 is provided with below yielding rubber post 23, adpting flange 25 is provided with below lower baffle plate 24, the top of main auger spindle 1 is provided with digging wheel 19, digging wheel 19 is provided with mining head 20 above.
First outer wing 2, second outer wing 4 is symmetrical arranged.
First inner wing 3, second inner wing 5 is symmetrical arranged.
Utilize technical scheme described in the utility model, or those skilled in the art being under the inspiration of technical solutions of the utility model, designing similar technical scheme, and reach above-mentioned technique effect, is all fall into protection domain of the present utility model.
Claims (3)
1. coalmine ventilation pricks both wings bottom expanding drill, it is characterized in that: comprise main auger spindle, the side of described main auger spindle is provided with the first outer wing, first inner wing, opposite side is provided with the second outer wing, second inner wing, the side of described first outer wing is provided with the first positive stop lug boss, the first pick is provided with in described first positive stop lug boss, the side of described second outer wing is provided with the second positive stop lug boss, the second pick is provided with in described second positive stop lug boss, the side of described first inner wing is provided with the first central post, described first central post is provided with clutch shaft bearing, the side of described second inner wing is provided with the second central post, described second central post is provided with the second bearing, the other both sides of described main auger spindle are equipped with stiffener, described stiffener is provided with reinforcing rib, the top of described stiffener is provided with connecting portion, the bottom of described stiffener is provided with lower connecting portion, described upper connecting portion, lower connecting portion is bolted on main auger spindle, the bottom of described main auger spindle is connected with overhead gage, junction plate is provided with between described overhead gage and main auger spindle, yielding rubber post is provided with below described overhead gage, lower baffle plate is provided with below described yielding rubber post, adpting flange is provided with below described lower baffle plate, the top of described main auger spindle is provided with digging wheel, mining head is provided with above described digging wheel.
2. coalmine ventilation according to claim 1 pricks both wings bottom expanding drill, it is characterized in that: described first outer wing, the second outer wing are symmetrical arranged.
3. coalmine ventilation according to claim 1 pricks both wings bottom expanding drill, it is characterized in that: described first inner wing, the second inner wing are symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622060.7U CN204851071U (en) | 2015-08-18 | 2015-08-18 | Colliery ventilation is pricked both wings and is expanded subdrilling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520622060.7U CN204851071U (en) | 2015-08-18 | 2015-08-18 | Colliery ventilation is pricked both wings and is expanded subdrilling head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851071U true CN204851071U (en) | 2015-12-09 |
Family
ID=54741629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520622060.7U Expired - Fee Related CN204851071U (en) | 2015-08-18 | 2015-08-18 | Colliery ventilation is pricked both wings and is expanded subdrilling head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851071U (en) |
-
2015
- 2015-08-18 CN CN201520622060.7U patent/CN204851071U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |