CN212917737U - Rotary wing type hole expanding drilling tool - Google Patents
Rotary wing type hole expanding drilling tool Download PDFInfo
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- CN212917737U CN212917737U CN202021505540.2U CN202021505540U CN212917737U CN 212917737 U CN212917737 U CN 212917737U CN 202021505540 U CN202021505540 U CN 202021505540U CN 212917737 U CN212917737 U CN 212917737U
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Abstract
A rotary wing type hole expanding drilling tool comprises a rod stabilizer and a rotary wing, wherein the rotary wing is arranged on the rod stabilizer through a locking system, the locking system comprises a transverse pin, a split pin and an elastic cylindrical pin, a main pin hole is radially distributed on the rod stabilizer, the rotor wing is arranged on the rod stabilizer through a transverse pin and a split pin which are arranged in the main pin hole, the rod stabilizer is also provided with an auxiliary pin hole which is communicated with the main pin hole, the auxiliary pin hole and the main pin hole are positioned on the same plane and communicated with the pin hole on the split pin, the elastic cylindrical pin locks the split pin through the close fit of the auxiliary pin hole and the pin hole of the split pin, the device realizes secondary locking on the original basis, and the original surfacing fixing mode is replaced by adopting the mode, and the elastic cylindrical pin can be detached after being installed, so that the probability of falling of the rotor wing is reduced on the one hand, and the rotor wing is convenient to replace on the other hand.
Description
Technical Field
The utility model relates to a rotor type reaming drilling tool.
Background
The existing rotor drilling tool customer can carry out surfacing anti-drop at the split pin position in order to prevent the rotor from dropping in use, and although the rotor can be prevented from dropping actually by adopting the mode, the locking accessory can only be damaged when the rotor needs to be replaced, and the locking position can be easily damaged when the locking accessory is broken, so that the rod stabilizer is damaged, and the construction cost is greatly improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art not enough and provide a simple to operate, change easy, effectively reduce the rotor probability of droing, save the cost, improve the rotary wing formula reaming drilling tool of availability factor.
The utility model discloses a following embodiment realizes:
the utility model provides a rotor formula reaming drilling tool, includes stabilizer bar ware and rotor, the rotor passes through locking system to be installed on the stabilizer bar ware, locking system includes horizontal pin, split pin and elasticity cylindric lock, radially laid the king pin hole on the stabilizer bar ware, the rotor is installed on the stabilizer bar ware through horizontal pin and the split pin of installing in the king pin hole, still be equipped with the vice pinhole with the king pin hole intercommunication on the stabilizer bar ware, vice pinhole and king pin hole be in the coplanar and with pinhole intercommunication on the split pin, the elasticity cylindric lock is through the pinhole tight fit of vice pinhole and split pin with the split pin and locks the split pin. Adopt above-mentioned structure, set up an auxiliary pinhole on the stabilizer bar ware, through the cotter pin in the fixed swizzle hole of the elasticity cylindric lock in the auxiliary pinhole, realizing the secondary locking on original basis like this, adopted this kind of mode to replace original build-up welding fixed mode, can dismantle after the installation of elasticity cylindric lock moreover to reduce the probability that the rotor drops on the one hand, on the other hand is convenient for the change to the rotor.
In this embodiment, the stabilizer is provided with a mounting hole for mounting the rotor along the axial direction, the stabilizer is communicated with the mounting hole along a main pinhole arranged along the radial direction, a pin slot corresponding to the main pinhole is arranged at the tail end of the rotor, and a transverse pin and a split pin are arranged in the main pinhole and the pin slot to mount the rotor on the stabilizer.
In this embodiment, the secondary pin holes are smaller than the primary pin holes.
In this embodiment, the auxiliary pin holes are arranged perpendicular to the main pin holes.
In this embodiment, the outer diameter of the elastic cylindrical pin is 1mm smaller than the inner diameter of the auxiliary pin hole, and the outer diameter of the elastic cylindrical pin is 1mm larger than the pin hole in the cotter pin.
In the present embodiment, the pin hole of the cotter is 1/4 of the cotter diameter.
In the embodiment, the opening of the auxiliary pin hole is positioned in the rotation direction of the drilling tool, so that the pressure of sand, gravel and soil can act as a function of resisting the elastic cylindrical pin in the rotation process of the drilling tool.
In conclusion, this device adds vice pinhole on the steady pole ware, and vice pinhole position and split pin are on the coplanar, and the size of vice pinhole and the pinhole size phase-match of split pin, and elasticity cylindric lock is 1mm bigger than vice pinhole, and elasticity cylindric lock is through special heat treatment, and the performance is good, can recycle to easy the dismantlement. The split size of split pin and elasticity cylindric lock is through strict processing, and locking performance is good, realizes the secondary locking on original basis through above-mentioned structure, adopts this kind of mode to replace original build-up welding fixed mode, can dismantle after the installation of elasticity cylindric lock moreover to reduce the probability that the rotor drops on the one hand, on the other hand is convenient for the change to the rotor.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a cross-sectional view of the present invention at B-B.
In the attached drawing, 1, a rotor wing, 2, a rod stabilizer, 3, a transverse pin, 4, a split pin, 5 and an elastic cylindrical pin.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, a rotary wing type hole expanding drilling tool comprises a stabilizer 2 and a rotary wing 1, wherein the rotary wing 1 is arranged on the stabilizer 2 through a locking system, the locking system comprises a transverse pin 3, a cotter pin 4 and an elastic cylindrical pin 5, the rod stabilizer 2 is provided with an installation hole for installing the rotor wing 1 along the axial direction, the main pin holes are distributed on the rod stabilizer 2 along the radial direction, the main pin holes distributed on the rod stabilizer 2 along the radial direction are communicated with the mounting hole part, the tail end of the rotor wing 1 is provided with a pin slot corresponding to the main pin hole, the transverse pin 3 and the split pin 4 are arranged in the main pin hole and the pin slot to install the rotor wing 1 on the stabilizer 2, the rod stabilizer 2 is also provided with an auxiliary pin hole communicated with the main pin hole, the auxiliary pin hole and the split pin 4 are positioned on the same plane and communicated with a pin hole on the split pin 4, and the elastic cylindrical pin 5 is arranged in the auxiliary pin hole to lock the split pin 4. Adopt above-mentioned structure, set up an auxiliary pinhole on stabilizer 2, through cotter 4 in the 5 fixed king pin holes of elasticity cylindric lock in the auxiliary pinhole, realizing the secondary locking on original basis like this, adopt this kind of mode to replace original build-up welding fixed mode, can dismantle after 5 installations of elasticity cylindric lock moreover to reduce the probability that rotor 1 drops on the one hand, on the other hand is convenient for the change to rotor 1.
In this embodiment, the auxiliary pin hole is smaller than the main pin hole, the auxiliary pin hole is arranged perpendicular to the main pin hole, the outer diameter of the elastic cylindrical pin 5 is 1mm smaller than the inner diameter of the auxiliary pin hole, the outer diameter of the elastic cylindrical pin is 1mm larger than the pin hole on the split pin, the pin hole on the split pin is 1/4 of the diameter of the split pin, and the opening of the auxiliary pin hole is in the rotation direction of the drilling tool.
The above description is only for the description of the specific embodiments of the present invention, and the scope of the present invention should not be limited thereto. All equivalent changes and modifications made according to the claims and the content of the specification of the present invention are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a rotor formula reaming drilling tool, includes stabilizer bar ware and rotor, the rotor passes through locking system and installs on the stabilizer bar ware its characterized in that: the locking system comprises a transverse pin, a split pin and an elastic cylindrical pin, a main pin hole is radially distributed on the rod stabilizer, the rotor wing is arranged on the rod stabilizer through the transverse pin and the split pin which are arranged in the main pin hole, an auxiliary pin hole communicated with the main pin hole is further arranged on the rod stabilizer, the auxiliary pin hole and the main pin hole are in the same plane and are communicated with a pin hole in the split pin, and the elastic cylindrical pin is tightly matched with the pin hole of the split pin through the auxiliary pin hole to lock the split pin.
2. The rotary-wing reamer tool of claim 1, wherein: the stabilizer is provided with a mounting hole for mounting the rotor wing along the axial direction, the stabilizer is communicated with the mounting hole along a main pin hole arranged along the radial direction, a pin groove corresponding to the main pin hole is arranged on the tail end of the rotor wing, and a cross pin and a split pin are arranged in the main pin hole and the pin groove to mount the rotor wing on the stabilizer.
3. The rotary-wing reamer tool of claim 1, wherein: the auxiliary pin hole is smaller than the main pin hole.
4. The rotary-wing reamer tool of claim 1, wherein: and the auxiliary pin holes and the main pin holes are vertically distributed.
5. The rotary-wing reamer tool of claim 1, wherein: the outer diameter of the elastic cylindrical pin is smaller than the inner diameter of the auxiliary pin hole, and the outer diameter of the elastic cylindrical pin is larger than the pin hole in the split pin.
6. The rotary-wing reamer tool of claim 1, wherein: the pin hole on the cotter pin is 1/4 of the cotter pin diameter.
7. The rotary-wing reamer tool of claim 1, wherein: the opening of the auxiliary pin hole is positioned in the rotating direction of the drilling tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021505540.2U CN212917737U (en) | 2020-07-27 | 2020-07-27 | Rotary wing type hole expanding drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021505540.2U CN212917737U (en) | 2020-07-27 | 2020-07-27 | Rotary wing type hole expanding drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212917737U true CN212917737U (en) | 2021-04-09 |
Family
ID=75332337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021505540.2U Active CN212917737U (en) | 2020-07-27 | 2020-07-27 | Rotary wing type hole expanding drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212917737U (en) |
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2020
- 2020-07-27 CN CN202021505540.2U patent/CN212917737U/en active Active
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