CN208467339U - A kind of electric drill of borehole stability - Google Patents
A kind of electric drill of borehole stability Download PDFInfo
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- CN208467339U CN208467339U CN201821048002.8U CN201821048002U CN208467339U CN 208467339 U CN208467339 U CN 208467339U CN 201821048002 U CN201821048002 U CN 201821048002U CN 208467339 U CN208467339 U CN 208467339U
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- electric drill
- drive shaft
- limit
- shell
- limiting slot
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Abstract
The utility model relates to a kind of electric drills of borehole stability, including electric drill shell, driving motor is equipped in electric drill shell, the end of driving motor is equipped with drive shaft, anti-jumping radial direction position-limit mechanism is arranged in drive shaft, anti-jumping radial direction position-limit mechanism includes fixed multiple turning sets on the driving shaft, the circumferential surface of turning set is equipped with limit disk, the outside of turning set is equipped with limit sleeve, limit sleeve is fixed on electric drill shell, the inside circumference of limit sleeve is equipped with round limiting slot, limit sleeve is set in the outside of turning set, limit disk is extend into round limiting slot to be cooperated with round limiting slot, multiple turning sets in drive shaft, it limits disk and limit sleeve and drive shaft is concentric, after electric drill starting, drive shaft drives multiple turning sets to rotate together, by the cooperation of turning set upper limit disk and round limiting slot to driving shaft run-out Range carries out accurate restriction, and when drive shaft is too long, limit sleeve ensure that the stability of drive shaft turns, ensure that borehole accuracy.
Description
Technical field
The utility model relates to field of power tools, especially a kind of electric drill of borehole stability.
Background technique
Electric drill is the drilling machine that power is done using electricity.It is the conventional products in electric tool, and have the call
Electric tool class product.Annual production and marketing quantity accounts for the 35% of Chinese electric tool, and electric drill working principle is electromagnetic rotation or electricity
The rotor of the reciprocating small capacity motor of magnetic does magnetic field intercepts acting operating, drives apparatus for work, band by transmission mechanism
The power that moving gear increases drill bit preferably pierces object, present electric drill is when in use to make drill bit scraping material surface
It is easy to there is a problem of that drill bit rotation occurs that circular runout amplitude is big, and result caused in this way is exactly that boring aperture is excessive, in addition
Because circular runout causes biggish damage to drill bit, drill bit circular runout is primarily due to the drive shaft mistake being connected to motor
Not enough, present patent application is further improved problem above for long and radial limit.
Summary of the invention
Purpose of the utility model is to solve defects of the existing technology, provide a kind of electric drill of borehole stability.
To achieve the goals above, the technical solution adopted in the utility model is:
A kind of electric drill of borehole stability, including electric drill shell, electric drill shell is interior to be equipped with driving motor, the end of driving motor
Equipped with drive shaft, the end of drive shaft connects the fast connection mechanism of drill bit, and the bottom of electric drill shell is equipped with to be electrically connected with driving motor
Battery pack, anti-jumping radial direction position-limit mechanism is arranged in the drive shaft, and anti-jumping radial direction position-limit mechanism includes being fixed on drive shaft
On multiple turning sets, the circumferential surface of turning set is equipped with limit disk, and the outside of turning set is equipped with limit sleeve, and limit sleeve is fixed on
On electric drill shell, the inside circumference of limit sleeve is equipped with round limiting slot, and limit sleeve is set in the outside of turning set, limits disk
It extend into round limiting slot and cooperates with round limiting slot.
A kind of electric drill of above-mentioned borehole stability, what the fast connection mechanism of drill bit was threadedly coupled with the electric drill shell end
Protective shell, protective shell inside are fixed with bearing, and bearing connects fast joint, is equipped with the installing port connecting with drill bit inside fast joint,
The bottom position that fast joint is internally located at installing port is equipped with magnetic patch, and the end of fast joint is fixed with connector sleeve, connector sleeve and institute
State the end thread connection of drive shaft.
A kind of electric drill of above-mentioned borehole stability, the section of the installing port are in hexagon, installing port and drill bit end
Hexagonal fixing head is coupled.
A kind of electric drill of above-mentioned borehole stability, multiple turning sets in drive shaft limit disk and limit sleeve and drive
Moving axis is concentric.
A kind of electric drill of above-mentioned borehole stability, multiple turning sets are equidistantly arranged on the driving shaft.
A kind of electric drill of above-mentioned borehole stability, electric drill shell are equipped with the button of control driving motor opening and closing.
The utility model has the following beneficial effects: being arranged anti-jumping radial direction position-limit mechanism, anti-jumping in the drive shaft of the electric drill
Radial position-limit mechanism includes fixed multiple turning sets on the driving shaft, and the circumferential surface of turning set is equipped with limit disk, turning set
Outside be equipped with limit sleeve, limit sleeve is fixed on electric drill shell, and the inside circumference of limit sleeve is equipped with round limiting slot, limit
It is set in the outside of turning set, limit disk is extend into round limiting slot to be cooperated with round limiting slot, more in drive shaft
A turning set, limits disk and limit sleeve and drive shaft is concentric, and after electric drill starting, drive shaft drives multiple turning sets to turn together
It is dynamic, accurate restriction is carried out to driving shaft run-out range by the cooperation of turning set upper limit disk and round limiting slot,
The problem of when drive shaft is too long, limit sleeve ensure that the stability of drive shaft turns, and circular runout is not present, ensure that drilling
Precision prevents drill bit impaired.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the connection schematic diagram of the utility model drive shaft and anti-jumping radial direction position-limit mechanism；
Fig. 3 is the cooperation schematic diagram of the utility model limit sleeve and turning set；
Fig. 4 is the schematic diagram of the fast connection mechanism of the utility model drill bit.
Specific embodiment
As shown in Figures 1 to 4, a kind of electric drill of borehole stability, including electric drill shell 1, electric drill shell 1 is interior to be equipped with driving electricity
Machine 2, the end of driving motor 2 are equipped with drive shaft 3, and the end of drive shaft 3 connects the fast connection mechanism of drill bit, the bottom of electric drill shell 1
Equipped with the battery pack 4 being electrically connected with driving motor 2, anti-jumping radial direction position-limit mechanism is arranged in drive shaft 3, anti-jumping radially limits
Mechanism includes the multiple turning sets 5 being fixed in drive shaft 3, and the circumferential surface of turning set 5, which is equipped with, limits disk 6, outside turning set 5
Side is equipped with limit sleeve 7, and limit sleeve 7 is fixed on electric drill shell 1, and the inside circumference of limit sleeve 7 is equipped with round limiting slot 8, limit
Position set 7 is set in the outside of turning set 5, and limit disk 6 is extend into round limiting slot 8 to be cooperated with round limiting slot 8.
Further, the protective shell 9 that the fast connection mechanism of drill bit is connect with 1 end thread of electric drill shell is fixed on the inside of protective shell 9
Bearing 10, bearing 10 connect fast joint 11, the installing port 12 connecting with drill bit, position in fast joint 11 are equipped with inside fast joint 11
Be equipped with magnetic patch 13 in the bottom position of installing port 12, the end of fast joint 11 is fixed with connector sleeve 14, connector sleeve 14 with it is described
The end thread of drive shaft 3 connects.
Wherein, the section of installing port 12 is in hexagon, and installing port 12 and the hexagonal fixing head of drill bit end are coupled, and is bored
The hexagonal fixing head of cephalic par is adsorbed after extending into installing port 12 by magnetic patch 13, and drill bit is driven together with fast joint 11
Axis 3 drives rotation together to drill.The entire fast connection mechanism of drill bit is fixed on 1 end of electric drill shell by the way of being threadedly coupled
Portion if fast joint 11 is impaired, can replace the fast connection mechanism of new drill bit, which is also this during drilling
One innovative point of patent.
Multiple turning sets 5 in drive shaft 3, limit disk 6 and limit sleeve 7 and drive shaft 3 is concentric, multiple turning sets 5
It equidistantly arranges in drive shaft 3, electric drill shell 1 is equipped with the button 15 that control driving motor 2 opens and closes.
The drive shaft 3 of the electric drill, which is equipped with, is arranged anti-jumping radial direction position-limit mechanism, and anti-jumping radial direction position-limit mechanism includes solid
The multiple turning sets 5 being scheduled in drive shaft 3, the circumferential surface of turning set 5 are equipped with limit disk 6, and the outside of turning set 5 is equipped with limit
Set 7, limit sleeve 7 is fixed on electric drill shell 1, and the inside circumference of limit sleeve 7 is equipped with round limiting slot 8, and limit sleeve 7 is set in
The outside of turning set 5, limit disk 6 is extend into round limiting slot 8 to be cooperated with round limiting slot 8, multiple turns in drive shaft 3
Dynamic set 5, limits disk 6 and limit sleeve 7 and drive shaft 3 is concentric, and after electric drill starting, drive shaft 3 drives multiple turning sets 5 together
Rotation carries out the circular runout range of drive shaft 3 by the cooperation of 5 upper limit disk 6 of turning set and round limiting slot 8 accurate
The problem of restriction, when drive shaft 3 is too long, limit sleeve 7 ensure that the stability that drive shaft 3 rotates, and circular runout is not present, protects
Borehole accuracy has been demonstrate,proved, has prevented drill bit impaired.
Further, bearing can be set in round limiting slot 8, the outer ring of bearing is fixed in round limiting slot 8, rotation
Set 5 can be fixedly connected directly through bearing with the inner ring of bearing, and after electric drill starting, drive shaft 3 drives multiple turning sets 5 together
Rotation, is rotated together by turning set 5 with the inner ring of dynamic bearing, the outer ring of bearing is fixed on the round limiting slot 8 of limit sleeve 7
Interior, since multiple turning sets 5 and limit sleeve 7 and drive shaft 3 are concentric, when drive shaft 3 rotates, limit sleeve 7 is to 5 He of turning set
The radial limit of drive shaft 3, the problem of ensure that the stability that drive shaft 3 rotates, circular runout is not present.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (6)
1. a kind of electric drill of borehole stability, including electric drill shell, electric drill shell is interior to be equipped with driving motor, and the end of driving motor is set
There is drive shaft, the end of drive shaft connects the fast connection mechanism of drill bit, and the bottom of electric drill shell is equipped with the electricity being electrically connected with driving motor
Chi Bao, which is characterized in that anti-jumping radial direction position-limit mechanism is arranged in the drive shaft, anti-jumping radial direction position-limit mechanism includes fixing
Multiple turning sets on the driving shaft, the circumferential surface of turning set are equipped with limit disk, and the outside of turning set is equipped with limit sleeve, limit
Set is fixed on electric drill shell, and the inside circumference of limit sleeve is equipped with round limiting slot, and limit sleeve is set in the outside of turning set,
Limit disk is extend into round limiting slot to be cooperated with round limiting slot.
2. a kind of electric drill of borehole stability according to claim 1, which is characterized in that the fast connection mechanism of drill bit with it is described
The protective shell that electric drill shell end is threadedly coupled, protective shell inside are fixed with bearing, and bearing connects fast joint, sets inside fast joint
There is the installing port connecting with drill bit, the bottom position that fast joint is internally located at installing port is equipped with magnetic patch, and the end of fast joint is solid
Surely there is connector sleeve, connector sleeve is connect with the end thread of the drive shaft.
3. a kind of electric drill of borehole stability according to claim 2, which is characterized in that the section of the installing port is in hexagonal
Shape, installing port and the hexagonal fixing head of drill bit end are coupled.
4. a kind of electric drill of borehole stability according to claim 1, which is characterized in that multiple turning sets in drive shaft,
It limits disk and limit sleeve and drive shaft is concentric.
5. a kind of electric drill of borehole stability according to claim 1, which is characterized in that multiple turning sets are on the driving shaft etc.
Spacing arrangement.
6. a kind of electric drill of borehole stability according to claim 1, which is characterized in that electric drill shell is equipped with control driving
The button of motor opening and closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048002.8U CN208467339U (en) | 2018-07-04 | 2018-07-04 | A kind of electric drill of borehole stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048002.8U CN208467339U (en) | 2018-07-04 | 2018-07-04 | A kind of electric drill of borehole stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208467339U true CN208467339U (en) | 2019-02-05 |
Family
ID=65212738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821048002.8U Active CN208467339U (en) | 2018-07-04 | 2018-07-04 | A kind of electric drill of borehole stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208467339U (en) |
-
2018
- 2018-07-04 CN CN201821048002.8U patent/CN208467339U/en active Active
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