CN207988954U - A kind of Chisel bit for the blade that conveniently changes the outfit - Google Patents
A kind of Chisel bit for the blade that conveniently changes the outfit Download PDFInfo
- Publication number
- CN207988954U CN207988954U CN201721391529.6U CN201721391529U CN207988954U CN 207988954 U CN207988954 U CN 207988954U CN 201721391529 U CN201721391529 U CN 201721391529U CN 207988954 U CN207988954 U CN 207988954U
- Authority
- CN
- China
- Prior art keywords
- blade
- bit
- blind hole
- outfit
- dovetail groove
- 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
Links
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- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model discloses a kind of Chisel bits for the blade that conveniently changes the outfit, including dill bit（1）, connecting sleeve of drill shank（2）And blade（11）, in dill bit（1）End offer dovetail groove（6）, in dovetail groove（6）One end be equipped with and dill bit（2）The baffle plate being linked together（7）, blind hole is offered at the slot bottom of the other end（8）, in blind hole（8）It is interior to be equipped with spring（9）, in spring（9）End be equipped with can be fully inserted into blind hole（8）Straight pin（10）, in the blade（11）Bottom be connected with installation pedestal（12）, the installation pedestal（12）With dovetail groove（6）Cooperation clamping, far from baffle plate（7）The installation pedestal of one end（12）On offer U-shaped breach（13）, straight pin（10）Upper end be inserted into the U-shaped breach（13）It is interior.The utility model effectively prevents causing scrapping for entire bore bit because of the breakage of alloy blade, reduces use cost.
Description
Technical field
The utility model is related to a kind of Chisel bits for the blade that conveniently changes the outfit, and belong to rock drilling drilling equipment technical field.
Background technology
Bore bit is the part of direct Drilling rock in drill rod, is mounted in drill steel front end rotary percussion drill by driving rock drilling hole
Cutter, bore bit common at present have Chisel bit, cross bore bit and spherical tooth drill bit.In the prior art, Chisel bit
It is to open up a groove in the end of dill bit, then alloy blade is welded in "-" type groove, when in use, alloy knife
Sword is easy to scrap because breakage occurs, and in turn resulting in entire bore bit scraps, and use cost is caused to increase.In order to avoid because of alloy knife
Sword is damaged and entire bore bit is caused to scrap, and providing a kind of Chisel bit for the blade that conveniently changes the outfit just seems particularly necessary.
Invention content
The technical problems to be solved in the utility model is to provide a kind of Chisel bit for the blade that conveniently changes the outfit, avoid because
The breakage of alloy blade and cause entire bore bit to scrap, with overcome the deficiencies in the prior art.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of "-" type pricker for the blade that conveniently changes the outfit
Head, it includes dill bit, connecting sleeve of drill shank and blade, and the dill bit is connected as one with connecting sleeve of drill shank, in dill bit
The both sides in section are equipped with symmetrical cutting face and dregs guiding groove, are equipped with to go out with what hollow connecting sleeve of drill shank was connected in dregs guiding groove
Water hole offers dovetail groove in the end of dill bit, the baffle plate being linked together with dill bit is equipped in one end of dovetail groove, separately
Blind hole is offered at the slot bottom of one end, spring is equipped in blind hole, the circle that can be fully inserted into blind hole is equipped in the end of spring
Pin is connected with installation pedestal in the bottom of the blade, and the installation pedestal is clamped with dovetail groove cooperation, far from baffle plate
U-shaped breach is offered in the installation pedestal of one end, the upper end of straight pin is inserted into the U-shaped breach.
The Chisel bit of the above-mentioned blade that conveniently changes the outfit is that the blade is equipped with to coincide with curved surface where cutting face
Cutting end face.
The Chisel bit of the above-mentioned blade that conveniently changes the outfit is that the arcwall face of the U-shaped breach is partly coated on straight pin
On cylindrical surface.
The Chisel bit of the above-mentioned blade that conveniently changes the outfit is, is clearance fit between the straight pin and blind hole.
The Chisel bit of the above-mentioned blade that conveniently changes the outfit is, is interference fit between the installation pedestal and dovetail groove.
Compared with the prior art, the utility model has the beneficial effects that：
The utility model opens up dovetail groove in the end of dill bit, in the affixed installation pedestal in the bottom of blade, makes installation base
Seat is clamped with dovetail groove cooperation, then the position-limiting action by the way that baffle plate and straight pin at dovetail groove both ends is arranged, you can is ensured
Blade is securely connected on dill bit, meanwhile, by the way that straight pin is completely forced into blind hole, you can realize suitable from dill bit
The purpose of profit dismounting blade；Blade is avoided in this way with dill bit welding forming in one, so as to avoid because of alloy blade
Breakage and cause scrapping for entire bore bit, reduce use cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the dill bit of the utility model.
Fig. 3 is the structural schematic diagram of the blade of the utility model.
Specific implementation mode
Embodiment 1, as shown in Fig. 1, the utility model is related to a kind of blade that conveniently changes the outfit Chisel bit, it
Including dill bit 1, connecting sleeve of drill shank 2 and blade 11, the dill bit 1 is connected as one with connecting sleeve of drill shank 2, in dill bit 1
The both sides of middle section are equipped with symmetrical cutting face 3 and dregs guiding groove 4, are equipped in dregs guiding groove 4 and are connected with hollow connecting sleeve of drill shank 2
Logical apopore 5 offers dovetail groove 6 in the end of dill bit 1, is equipped in one end of dovetail groove 6 and is linked together with dill bit 2
Baffle plate 7, offer blind hole 8 at the slot bottom of the other end, spring 9 be equipped in blind hole 8, being equipped in the end of spring 9 can
It is fully inserted into the straight pin 10 of blind hole 8, installation pedestal 12, the installation pedestal 12 and swallow are connected in the bottom of the blade 11
The cooperation clamping of stern notch 6, the blade 11 is equipped with the cutting end face 14 to coincide with 3 place curved surface of cutting face, far from backstop
U-shaped breach 13 is offered in the installation pedestal 12 of 7 one end of plate, the upper end of straight pin 10 is inserted into the U-shaped breach 13, the U-shaped
The arcwall face of notch 13 is partly coated on the cylindrical surface of straight pin 10.In addition, matching for gap between the straight pin 10 and blind hole 8
It closes；It is interference fit between the installation pedestal 12 and dovetail groove 6.
Blade 11 is assembled to having main steps that for dill bit 1：Straight pin 10 is completely forced into blind hole 8 first, is then made
12 inlay card of installation pedestal of blade 11 enters in the dovetail groove 6 on dill bit 1, and last straight pin 10 is returned to U-shaped breach 13.From pricker
Dismounting blade 11 has main steps that on head body 1：Straight pin 10 is completely forced into blind hole 8 first, then uses jack unit
The installation pedestal 12 of blade 11 is set to skid off the dovetail groove 6 on dill bit 1.
Claims (4)
1. a kind of Chisel bit for the blade that conveniently changes the outfit, it includes dill bit（1）, connecting sleeve of drill shank（2）And blade（11）, institute
State dill bit（1）With connecting sleeve of drill shank（2）It is connected as one, in dill bit（1）The both sides of middle section are equipped with symmetrical cutting face
（3）And dregs guiding groove（4）, in dregs guiding groove（4）It is interior to be equipped with and hollow connecting sleeve of drill shank（2）The apopore being connected（5）, feature
It is：In dill bit（1）End offer dovetail groove（6）, in dovetail groove（6）One end be equipped with and dill bit（1）It is linked as one
The baffle plate of body（7）, blind hole is offered at the slot bottom of the other end（8）, in blind hole（8）It is interior to be equipped with spring（9）, in spring（9）'s
End, which is equipped with, can be fully inserted into blind hole（8）Straight pin（10）, in the blade（11）Bottom be connected with installation pedestal
（12）, the installation pedestal（12）With dovetail groove（6）Cooperation clamping, far from baffle plate（7）The installation pedestal of one end（12）On
Offer U-shaped breach（13）, straight pin（10）Upper end be inserted into the U-shaped breach（13）It is interior, and the U-shaped breach（13）Arc
Shape face is partly coated on straight pin（10）Cylindrical surface on.
2. the Chisel bit of the blade according to claim 1 that conveniently changes the outfit, it is characterised in that：The blade（11）On set
Have and cutting face（3）The cutting end face that place curved surface coincides（14）.
3. the Chisel bit of the blade according to claim 1 that conveniently changes the outfit, it is characterised in that：The straight pin（10）With
Blind hole（8）Between be clearance fit.
4. the Chisel bit of the blade according to claim 1 that conveniently changes the outfit, it is characterised in that：The installation pedestal（12）
With dovetail groove（6）Between for interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721391529.6U CN207988954U (en) | 2017-10-26 | 2017-10-26 | A kind of Chisel bit for the blade that conveniently changes the outfit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721391529.6U CN207988954U (en) | 2017-10-26 | 2017-10-26 | A kind of Chisel bit for the blade that conveniently changes the outfit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207988954U true CN207988954U (en) | 2018-10-19 |
Family
ID=63804424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721391529.6U Expired - Fee Related CN207988954U (en) | 2017-10-26 | 2017-10-26 | A kind of Chisel bit for the blade that conveniently changes the outfit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207988954U (en) |
-
2017
- 2017-10-26 CN CN201721391529.6U patent/CN207988954U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20191026 |