CN208168811U - A kind of seamless drilling pipe - Google Patents
A kind of seamless drilling pipe Download PDFInfo
- Publication number
- CN208168811U CN208168811U CN201820415024.7U CN201820415024U CN208168811U CN 208168811 U CN208168811 U CN 208168811U CN 201820415024 U CN201820415024 U CN 201820415024U CN 208168811 U CN208168811 U CN 208168811U
- Authority
- CN
- China
- Prior art keywords
- tube body
- clamping block
- drill bit
- drilling pipe
- torsional spring
- 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
Abstract
The utility model relates to seamless tubular goods technical fields, specifically related to a kind of seamless drilling pipe, including tube body, external screw thread is equipped with outside the tube body, the tube body end outer wall annular array is provided with several grooves, the clamping block to match with groove is hinged in several grooves, the clamping block is connected with the torsional spring for driving it to rotate to outside groove, and the clamping block is externally provided with screw thread corresponding with tube body.When tube body is connect with drill bit thread, clamping block compresses torsional spring and is located in groove, simultaneously under the rebound effect of torsional spring, clamping block and drill bit inner wall push against, the connection effect for strengthening tube body and drill bit, when the screw thread between drill bit and tube body is worn, torsional spring drives clamping block to push against in drill bit inner wall, the being completely embedded property for improving tube body and drill bit extends the service life of tube body.
Description
Technical field
The utility model relates to seamless tubular goods technical fields, more specifically, it relates to a kind of seamless drilling pipe.
Background technique
With the intensification step by step of coal mining depth, for the supporting demand for meeting deep mining, anchor pole is towards high-intensitive, high
Pretightning force, strength supporting direction develop.Anchor pole at this stage such as mostly uses at strong thread steel type resin anchor, the anchor rod body
For helicitic texture, fastener use can be directly connected to, but due to its screw thread cross section be it is trapezoidal, cause anchor pole in use process
In it is big with stirring resistance of the resin anchoring agent in whipping process, thus increase anchor pole push-in country rock hole bottom difficulty.
Existing Authorization Notice No. provides a kind of anchor rod body for the Chinese patent of CN204140105U, including columned
Matrix, is formed with cross rib extend spirally, raised on the matrix side, and the cross section of the cross rib is arc-shaped.Using this
Anchor rod body can effectively reduce stirring resistance of the anchor pole in use with resin anchoring agent in whipping process, thus
Reduce the thrust of anchor pole push-in country rock hole bottom.
But in the use process of tube body, often need to connect tube body and the installation of drill bit or connector screw thread, on tube body
Different drill bits is often needed replacing, after long-time use, the connection between drill bit and tube body is also easy to produce abrasion, causes to be not connected firmly
Gu influencing its use.
Utility model content
The purpose of this utility model is to provide a kind of seamless drilling pipes, have the company for improving tube body and drill bit and connector
The advantages of connecing compactness.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of seamless drilling pipe, packet
Tube body is included, is equipped with external screw thread outside the tube body, the tube body is provided with several grooves close to end outer wall annular array, several
The clamping block to match with groove is hinged in the groove, the clamping block is connected with the torsional spring for driving it to rotate to outside groove,
The clamping block is externally provided with screw thread corresponding with tube body.
By using above-mentioned technical proposal, when tube body is connect with drill bit thread, clamping block compresses torsional spring and is located at groove
It is interior, while under the rebound effect of torsional spring, clamping block and drill bit inner wall push against, the connection effect of tube body and drill bit is strengthened,
When the screw thread between drill bit and tube body is worn, torsional spring drives clamping block to push against in drill bit inner wall, improves tube body and drill bit
Being completely embedded property, extend the service life of tube body.
Further, the tube body end is threaded with casing, and described sleeve pipe is set in outside clamping block.
By using above-mentioned technical proposal, casing is set in outside clamping block, prevents clamping block from colliding with and abrasion occurs and falls
The case where falling.
Further, the tube body end is equipped with towards the inclined-plane outside tube body.
By using above-mentioned technical proposal, the inclined-plane of tube body end facilitates the threaded connection of tube body and drill bit.
Further, it is coated with high rigidity layer outside the tube body, the high rigidity layer is externally provided with abrasion resistant layer.
By using above-mentioned technical proposal, high rigidity layer enhances the hardness of tube body, and steel is enable to bear bigger pressure,
And preventing tube body from bending, abrasion resistant layer slows down the abrasion of tube body, improves the service life of tube body.
Further, the high rigidity layer is TaC layers.
By using above-mentioned technical proposal, TaC layers enhance the hardness of tube body, and tube body can be prevented to be corroded, moreover it is possible to anti-
The heat that the tube body only to run at high speed generates damages tube body.
Further, the abrasion resistant layer is AlFeCoCrNi high-entropy alloy layer.
By using above-mentioned technical proposal, AlFeCoCrNi high-entropy alloy layer will form fine and close oxygen when generating abrasion
Change film, tube body is prevented to be corroded.
Further, the tube body uses Q345 steel.
By using above-mentioned technical proposal, Q345 is low-alloy high-tensile structural steel, can be drilled in hard material, and its
With wear resisting and corrosion resistance, the tube body made of Q345 steel is applicable to various working environments.
Further, the abrasion resistant layer, which is cladded with, is coated with epoxy coating.
By using above-mentioned technical proposal, epoxy coating has good corrosion resistance and moisture resistance, in the transport and storage of tube body
During depositing, epoxy coating can protect tube body not corroded by moisture and corrosive medium.
In conclusion the utility model has the advantages that：
1. being hinged with the clamping to match with groove in groove by being provided with several grooves in tube body end outer wall annular array
Block, clamping block are connected with the torsional spring for driving it to rotate to outside groove, and clamping block is externally provided with screw thread corresponding with tube body, in torsional spring
Rebound effect under, clamping block and drill bit inner wall push against, and strengthen the connection effect of tube body and drill bit；
2. by being threaded with casing in tube body end, and described sleeve pipe is set in outside clamping block, casing is set in
Outside clamping block, preventing clamping block from colliding with, there is a situation where wear and fall.
Detailed description of the invention
Fig. 1 is a kind of overall structure stereogram of seamless drilling pipe；
Fig. 2 is a kind of partial enlargement diagram of seamless drilling pipe；
Fig. 3 is the attachment structure schematic diagram of a kind of seamless drilling pipe and casing；
Fig. 4 is a kind of sectional view of seamless drilling pipe.
In figure：1, tube body；11, high rigidity layer；12, abrasion resistant layer；13, epoxy coating；2, groove；3, clamping block；4, it turns round
Spring；5, casing.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment：
A kind of seamless drilling pipe is equipped with external screw thread outside tube body 1, tube body 1 is close to end as shown in Figure 1, including tube body 1
Outer wall annular array is provided with several grooves 2, and the clamping block 3 to match with groove 2, clamping block 3 and groove 2 are hinged in groove 2
Hinged end is located at groove 2 far from 1 end side of tube body, and clamping block 3 is connected with the torsional spring 4 for driving it to rotate to outside groove 2, torsional spring
4 are set on articulated shaft, and one end is connected to 3 inner wall of clamping block, the other end is connected to 2 inner wall of groove.3 outer wall of clamping block is set
There is the screw thread to match with 1 outer wall of tube body, so that clamping block 3 compresses torsional spring 4 and is located at recessed when tube body 1 is connect with drill bit thread
In slot 2, while under the rebound effect of torsional spring 4, clamping block 3 and drill bit inner wall are pushed against, and strengthen the connection of tube body 1 Yu drill bit
Effect.When the screw thread between drill bit and tube body 1 is worn, torsional spring 4 drives clamping block 3 to push against in drill bit inner wall, improves pipe
The being completely embedded property of body 1 and drill bit extends the service life of tube body 1.1 end of tube body is equipped with towards the inclined-plane outside tube body 1,
The inclined-plane of 1 end of tube body facilitates the threaded connection of tube body 1 Yu drill bit.
As shown in Figures 2 and 3, clamping block 3 is worn during the transport of tube body 1 and storage in order to prevent, tube body 1
External screw-thread is connected with casing 5, and casing 5 is set in outside clamping block 3, prevents clamping block 3 from colliding with and abrasion occurs and falls
Situation, casing 5 is recyclable to be reused.
As shown in Figure 1, tube body 1 is made of Q345 steel, Q345 is low-alloy high-tensile structural steel, can be in hard material
Drilling, to be suitable for various working environments.Meanwhile Q345 has wear-resisting and anti-corrosion performance, to slow down the mill of tube body 1
Damage, and prevent tube body 1 to be corroded under harsh physicochemical environment, and then extend the service life of tube body 1.
As shown in figure 4, being coated with high rigidity layer 11 outside tube body 1, high rigidity layer 11 is TaC layers, and TaC layers enhance tube body 1
Hardness enables tube body 1 to bear bigger pressure, and prevents tube body 1 from bending.Meanwhile TaC layers have anti-oxidant, high-melting-point, good
The excellent physical and chemical properties such as resistant to chemical etching and thermal shock resistance properties.Tube body 1 is disliked in physico chemical factors such as salt-soda soil, mines
When working in bad situation, TaC layers can not only prevent tube body 1 to be corroded, moreover it is possible to the heat pair for preventing the tube body 1 to run at high speed from generating
Tube body 1 damages.
As shown in figure 4, being also covered with abrasion resistant layer 12 outside high rigidity layer 11, abrasion resistant layer 12 is AlFeCoCrNi high-entropy alloy
Layer, when generating abrasion, with the increase of load in friction process, wear mechanism gradually becomes oxidative wear by abrasive wear
And adhesive wear, and generated on 1 surface of tube body and be rich in Al3+、Ni2+、Cr3+ dense oxidation film, to prevent tube body 1 rotten
Erosion.
As shown in figure 4, abrasion resistant layer 12 is cladded with epoxy coating 13, epoxy coating 13 has good corrosion resistance and moisture-proof
Property, during the transport of tube body 1 and storage, epoxy coating 13 can protect tube body 1 not corroded by moisture and corrosive medium.
Working principle：Several grooves 2 are provided in 1 end outer wall annular array of tube body, are hinged in groove 2 and 2 phase of groove
The clamping block 3 matched, clamping block 3 are connected with the torsional spring 4 for driving it to rotate to outside groove 2, and clamping block 3 is externally provided with opposite with tube body 1
The screw thread answered, under the rebound effect of torsional spring 4, clamping block 3 and drill bit inner wall are pushed against, and strengthen the connection of tube body 1 Yu drill bit
Effect.In addition, torsional spring 4 drives clamping block 3 to push against in drill bit inner wall when the screw thread between drill bit and tube body 1 is worn, improve
The being completely embedded property of tube body 1 and drill bit, extends the service life of tube body 1.High rigidity layer 11, high rigidity are coated with outside tube body 1
Layer 11 is externally provided with abrasion resistant layer 12, and high rigidity layer 11 enhances the hardness of tube body 1, so that steel is born bigger pressure, and prevent
Only tube body 1 is bent, and abrasion resistant layer 12 slows down the abrasion of tube body 1, improves the service life of tube body 1.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of seamless drilling pipe, including tube body（1）, the tube body（1）Outside is equipped with external screw thread, it is characterised in that：The tube body
（1）Several grooves are provided with close to end outer wall annular array（2）, several grooves（2）It is inside hinged with and groove（2）Match
Clamping block（3）, the clamping block（3）It is connected with and drives it to groove（2）The torsional spring of outer rotation（4）, the clamping block（3）Outside
It is equipped with and tube body（1）Corresponding screw thread.
2. a kind of seamless drilling pipe according to claim 1, it is characterised in that：The tube body（1）End thread is connected with set
Pipe（5）, and described sleeve pipe（5）It is set in clamping block（3）It is external.
3. a kind of seamless drilling pipe according to claim 1, it is characterised in that：The tube body（1）End is equipped with towards tube body
（1）External inclined-plane.
4. a kind of seamless drilling pipe according to claim 2, it is characterised in that：The tube body（1）It is coated with high rigidity layer outside
（11）, the high rigidity layer（11）It is externally provided with abrasion resistant layer（12）.
5. a kind of seamless drilling pipe according to claim 4, it is characterised in that：The high rigidity layer（11）It is TaC layers.
6. a kind of seamless drilling pipe according to claim 4, it is characterised in that：The abrasion resistant layer（12）For AlFeCoCrNi
High-entropy alloy layer.
7. a kind of seamless drilling pipe according to claim 1 to 6, it is characterised in that：The tube body（1）Using
Q345 steel.
8. a kind of seamless drilling pipe according to claim 4, it is characterised in that：The abrasion resistant layer（12）It is cladded with and is coated with ring
Oxygen coating（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820415024.7U CN208168811U (en) | 2018-03-24 | 2018-03-24 | A kind of seamless drilling pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820415024.7U CN208168811U (en) | 2018-03-24 | 2018-03-24 | A kind of seamless drilling pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208168811U true CN208168811U (en) | 2018-11-30 |
Family
ID=64374096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820415024.7U Expired - Fee Related CN208168811U (en) | 2018-03-24 | 2018-03-24 | A kind of seamless drilling pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208168811U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878924A (en) * | 2021-01-27 | 2021-06-01 | 南通洪源地质工程材料有限公司 | Large-diameter seamless drill pipe and machining process thereof |
-
2018
- 2018-03-24 CN CN201820415024.7U patent/CN208168811U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112878924A (en) * | 2021-01-27 | 2021-06-01 | 南通洪源地质工程材料有限公司 | Large-diameter seamless drill pipe and machining process thereof |
| CN112878924B (en) * | 2021-01-27 | 2024-04-02 | 南通洪源地质工程材料有限公司 | Large-diameter seamless drill pipe and processing technology thereof |
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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: 20181130 |