CN111270722A - Circulating heat dissipation drill rod and operation method thereof - Google Patents
Circulating heat dissipation drill rod and operation method thereof Download PDFInfo
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- CN111270722A CN111270722A CN202010130543.0A CN202010130543A CN111270722A CN 111270722 A CN111270722 A CN 111270722A CN 202010130543 A CN202010130543 A CN 202010130543A CN 111270722 A CN111270722 A CN 111270722A
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- liquid
- pipe
- drill rod
- inlet pipe
- liquid inlet
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
Abstract
The invention discloses a circulating heat dissipation drill rod and an operation method thereof, wherein the circulating heat dissipation drill rod comprises the following steps: step 1: the mounting end of the drill rod body is fixedly connected with the impact head through threads; step 2: the liquid inlet pipe A, the liquid inlet pipe B and the liquid inlet pipe C are respectively connected with the cooling liquid conveying main pipe through rotary sealing rings; the liquid outlet pipe A, the liquid outlet pipe B and the liquid outlet pipe C are respectively connected with a liquid discharge pipe through rotary sealing rings; and step 3: the liquid inlet pipe A, the liquid inlet pipe B and the liquid inlet pipe C are respectively filled with cooling liquid, and the pressure difference value of the cooling liquid among the liquid inlet pipe A, the liquid inlet pipe C and the liquid inlet pipe B is 1200 pa. The invention solves the problem that the metallographic structure of the drill rod body changes and prolongs the service life of the drill rod.
Description
Technical Field
The invention belongs to the technical field of drilling tools, and relates to a circulating heat dissipation drill rod and an operation method thereof.
Background
In the process of traffic and urban and rural construction, when hard rock strata or boulders are encountered, as the excavator cannot directly excavate, the excavator is required to firstly carry out crushing operation on the rock strata or boulders by using the drill rod; after the drill rod is operated for a long time, the heat generated by the impact of hard stones cannot be timely dissipated, so that the metallographic structure of the drill rod changes, the drill rod fails, and the drill rod is also a main cause of wear of the drill rod in engineering.
Disclosure of Invention
In order to solve the technical problem, the invention provides a circulating heat dissipation drill rod
The invention also provides an operation method of the circulating heat dissipation drill rod.
The invention is realized by the following technical scheme.
The invention provides a circulating heat dissipation drill rod, which comprises: the drill rod body is provided with a circular blind hole in the center;
the flow guide core is arranged in the round blind hole of the drill rod body in an interference fit manner, a plurality of through grooves are symmetrically arranged along the axial direction in the circumferential direction of the flow guide core, the tail ends of the through grooves which are symmetrical in pairs are communicated with each other,
a plurality of liquid through pipes are tightly matched on the contact end surface of the flow guide core and the drill rod body, and each liquid through pipe is communicated with the through groove; after the outside of the drill rod body generates heat with the stone friction, lead to the liquid pipe that has cooling liquid, lead to the coolant liquid through-flow on the logical groove of one side of water conservancy diversion core, the coolant liquid after the heat absorption flows through the liquid pipe from the logical groove of opposite side and discharges, just so can realize the cooling to the drill rod body, has solved the metallographic structure of the drill rod body and has changed, has improved the life of borer.
The drill rod body comprises a middle cylindrical end, a mounting end and a punching end; the circular blind hole of the flow guide core is at least flush with the root of the punching end of the drill rod body; because when the circular stifled hole of water conservancy diversion core stretched into the deformation end of the drill rod body, can make the intensity of the drill rod body weaken, lead to the drill rod body to become invalid easily.
The number of the through grooves on the flow guide core can be six, the six through grooves are symmetrically communicated in three groups through the flow guide groove A, the flow guide groove B and the flow guide groove C, and the flow guide core with the six symmetrical through grooves can uniformly disperse the force borne by the hollow drill rod body, so that the strength of the hollow drill rod body is ensured; the liquid passing pipe comprises a liquid inlet pipe A, a liquid inlet pipe B, a liquid inlet pipe C, a liquid outlet pipe A, a liquid outlet pipe B and a liquid outlet pipe C, and the liquid inlet pipe A, the liquid inlet pipe B, the liquid inlet pipe C, the liquid outlet pipe A, the liquid outlet pipe B and the liquid outlet pipe C are in one-to-one correspondence and are hermetically communicated with the through groove ports on the flow guide core; the cooling liquid is introduced from the liquid inlet pipe A, the liquid inlet pipe B and the liquid inlet pipe C and then absorbs heat on the drill rod body through the through flow groove A, the through flow groove B and the through flow groove C, and then is discharged from the liquid outlet pipe A, the liquid outlet pipe B and the liquid outlet pipe C.
The middle positions of the through-flow grooves A, the through-flow grooves B and the through-flow grooves C are spaced from each other, so that the heat of the cooling liquid flowing through the three through grooves is prevented from mixing, and the cooling performance of the drill rod body is improved.
The flow guide core is circular; the radius of the through groove is too small, liquid backflow is caused when a hammer stone returns to the drill rod body, and the strength of the drill rod body is insufficient due to the fact that the radius of the through groove is too large; the circular radius of the through groove is the same as the inner radius of the liquid through pipe, so that smooth and unblocked liquid is ensured.
The liquid inlet pipe A, the liquid inlet pipe B and the liquid inlet pipe C are respectively distributed on the flow guide core in close proximity to the liquid outlet pipe A, the liquid outlet pipe B and the liquid outlet pipe C in a staggered mode, and heat accumulation caused by liquid outlet at one side of the through groove in the flow guide core is avoided, so that the structure metallographic phase of the flow guide core and the drill rod body is changed.
The drill rod body is provided with six half-thread blind holes; the flow guide core is provided with six half-thread blind holes which form a full-circle thread blind hole and are hermetically connected with the thread end of the liquid through pipe, so that the flow guide core is convenient to detach while realizing the hermetic connection.
The flow guide core is provided with a positioning groove; the drill rod body is provided with a groove corresponding to the positioning groove; the installation positioning block is arranged in the positioning groove in an inclined surface mode; because the diversion core and the drill rod body are installed in an interference fit mode, the half-thread blind hole of the diversion core is required to be superposed with the half-thread blind hole of the drill rod body, and after the diversion core is installed, the installation positioning block is required to be used for ensuring that the half-thread blind holes are superposed to form a full circle.
The middle part of the diversion core is provided with an installation thread blind hole, and when the diversion core is rotated, the diversion core can be rotated by using a bolt, so that the diversion core is completely positioned and installed.
An operation method of a circulating heat dissipation drill rod uses the circulating heat dissipation drill rod, wherein the operation method comprises the following steps:
step 1: the mounting end of the drill rod body is fixedly connected with the impact head through threads;
step 2: the liquid inlet pipe A, the liquid inlet pipe B and the liquid inlet pipe C are respectively connected with the cooling liquid conveying main pipe through rotary sealing rings; the liquid outlet pipe A, the liquid outlet pipe B and the liquid outlet pipe C are respectively connected with a liquid discharge pipe through rotary sealing rings;
and step 3: the liquid inlet pipe A, the liquid inlet pipe B and the liquid inlet pipe C are respectively filled with cooling liquid, and the pressure difference value of the cooling liquid among the liquid inlet pipe A, the liquid inlet pipe C and the liquid inlet pipe B is 1200 pa.
The invention has the beneficial effects that: the change of the metallographic structure of the drill rod body is solved, and the service life of the drill rod is prolonged.
Drawings
FIG. 1 is a perspective schematic view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of the connection between the wick and the liquid tube of the present invention;
fig. 5 is a schematic view 2 of the matching connection of the diversion core and the liquid through pipe.
In the figure: 1-a drill rod body; 2-a flow guide core; 21-through-flow groove A; 22-through-flow groove B; 23-through-flow channel C; 3-liquid pipe; 31-liquid inlet pipe A; 32-liquid inlet pipe B; 33-liquid inlet pipe C; 34-a liquid outlet pipe A; 35-liquid outlet pipe B; 36-liquid outlet pipe C; 4, mounting a positioning block; 5-impact head 5.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-5.
The invention discloses a circulating heat dissipation drill rod, which comprises: the drill rod body 1 is provided with a circular blind hole in the center;
the diversion core 2 is arranged in a circular blind hole of the drill rod body 1 in an interference manner by 0.10-0.12 mm, a plurality of through grooves are symmetrically arranged in the circumferential direction of the diversion core 2 along the axial direction, the tail ends of the through grooves which are symmetrical in pairs are communicated with each other,
a plurality of liquid through pipes 3 are tightly matched on the contact end surface of the diversion core 2 and the drill rod body 1, and each liquid through pipe 3 is communicated with the through groove; after the outside of the drill rod body 1 generates heat with the stone friction, lead to liquid pipe 3 that has the coolant liquid, lead to the coolant liquid through-flow in the logical groove of one side of water conservancy diversion core 2, the coolant liquid after the heat absorption flows through liquid pipe 3 and discharges from the logical groove of opposite side, just so can realize the cooling to the drill rod body 1, has solved the metallographic structure of drill rod body 1 and has changed, has improved the life of borer.
The drill rod body 1 comprises a middle cylindrical end, a mounting end and a crushing end; the circular blind hole of the diversion core 2 is at least flush with the root of the punching end of the drill rod body 1; because when the circular stifled hole of water conservancy diversion core 2 stretched into the deformation end of the borer body of rod 1, can make the intensity of the borer body of rod 1 weaken, lead to the borer body of rod 1 to lose efficacy easily.
The number of the through grooves on the flow guide core 2 can be six, the six through grooves are symmetrically communicated in three groups through a flow guide groove A21, a flow guide groove B22 and a flow guide groove C23, and the flow guide core 2 with the six symmetrical through grooves can uniformly disperse the force borne by the hollow drill rod body 1, so that the strength of the hollow drill rod body 1 is ensured; the liquid through pipe 3 comprises a liquid inlet pipe A31, a liquid inlet pipe B32, a liquid inlet pipe C33, a liquid outlet pipe A34, a liquid outlet pipe B35 and a liquid outlet pipe C36, wherein the liquid inlet pipe A31, the liquid inlet pipe B32, the liquid inlet pipe C33, the liquid outlet pipe A34, the liquid outlet pipe B35 and the liquid outlet pipe C36 are in one-to-one correspondence and are hermetically communicated with the through groove ports on the flow guide core 2; after being introduced from the liquid inlet pipe A31, the liquid inlet pipe B32 and the liquid inlet pipe C33, the cooling liquid absorbs heat on the drill rod body 1 through the flow groove A21, the flow groove B22 and the flow groove C23, and then is discharged from the liquid outlet pipe A34, the liquid outlet pipe B35 and the liquid outlet pipe C36.
The middle positions of the through-flow grooves A21, the through-flow grooves B22 and the through-flow grooves C23 are spaced from each other, so that the heat of the cooling liquid flowing through the three through grooves is prevented from mixing, and the cooling performance of the drill rod body 1 is improved.
The flow guide core 2 is circular; the through groove is semicircular, the ratio of the semicircular radius of the through groove to the circular radius of the flow guide core 2 is eight to one, the radius of the through groove is too small, liquid backflow is caused when a hammer blows back on the drill rod body 1, and the strength of the drill rod body 1 is insufficient due to the fact that the radius of the through groove is too large; the circular radius of the through groove is the same as the inner radius of the liquid through pipe 3, so that smooth and smooth liquid flowing is ensured.
The liquid inlet pipe A31, the liquid inlet pipe B32 and the liquid inlet pipe C33 are respectively staggered and closely distributed on the flow guide core 2 with the liquid outlet pipe A34, the liquid outlet pipe B35 and the liquid outlet pipe C36, so that heat accumulation caused by liquid outlet at one side of a through groove on the flow guide core 2 is avoided, and the structure metallographic phase change of the flow guide core 2 and the drill rod body 1 is caused.
The drill rod body 1 is provided with six half-thread closed holes; the diversion core 2 is provided with six half-thread blind holes which form a full-circle thread blind hole with the half-thread blind hole of the drill rod body 1 and are hermetically connected with the thread end of the liquid through pipe 3, and the diversion core is convenient to detach while realizing the hermetic connection.
A positioning groove 24 is arranged on the flow guide core 2; the drill rod body 1 is provided with a groove corresponding to the positioning groove 24; the mounting and positioning device comprises a mounting and positioning block 4, wherein the inclined surface of the mounting and positioning block 4 is mounted in a positioning groove 24; because the diversion core 2 and the drill rod body 1 are installed in an interference fit mode, and a half-thread blind hole of the diversion core 2 is required to be superposed with a half-thread blind hole of the drill rod body 1, after the diversion core 2 is installed, a mounting and positioning block 4 is required to be used for ensuring that the half-thread blind holes are superposed to form a complete circle.
The middle part of the diversion core 2 is provided with an installation thread blind hole, when the diversion core 2 is rotated, the diversion core 2 can be rotated by using a bolt, and the complete positioning installation of the diversion core 2 is realized.
An operation method of a circulating heat dissipation drill rod uses the circulating heat dissipation drill rod, wherein the operation method comprises the following steps:
step 1: the mounting end of the drill rod body 1 is fixedly connected with the impact head 5 through threads;
step 2: the liquid inlet pipe A31, the liquid inlet pipe B32 and the liquid inlet pipe C33 are respectively connected with the cooling liquid conveying main pipe through rotary sealing rings; the liquid outlet pipe A34, the liquid outlet pipe B35 and the liquid outlet pipe C36 are respectively connected with a liquid outlet pipe through rotary sealing rings;
and step 3: the liquid inlet pipe A31, the liquid inlet pipe B32 and the liquid inlet pipe C33 are respectively filled with cooling liquid, and the pressure difference value of the cooling liquid among the liquid inlet pipe A31, the liquid inlet pipe C33 and the liquid inlet pipe B32 is 1200 pa.
The change of the metallographic structure of the drill rod body 1 is solved, and the service life of the drill rod is prolonged.
Claims (10)
1. A circulation heat dissipation borer, characterized by comprising: the drill rod body (1), the centre of the drill rod body (1) is provided with a circular blind hole;
the flow guide core (2) is arranged in a circular blind hole of the drill rod body (1) in an interference fit manner, a plurality of through grooves are symmetrically arranged in the circumferential direction of the flow guide core (2) along the axial direction, the tail ends of the through grooves which are symmetrical in pairs are communicated with each other,
a plurality of liquid through pipes (3) are tightly matched on the contact end surface of the diversion core (2) and the drill rod body (1), and each liquid through pipe (3) is communicated with the through groove.
2. The circulating heat dissipating drill as set forth in claim 1, wherein: the drill rod body (1) comprises a middle cylindrical end, a mounting end and a crushing end; the circular blind hole of the diversion core (2) is at least flush with the root of the punching end of the drill rod body (1).
3. The circulating heat dissipating drill as set forth in claim 1, wherein: six through grooves can be formed in the flow guide core (2), and the six through grooves are symmetrically communicated in three groups through a through groove A (21), a through groove B (22) and a through groove C (23); lead to liquid pipe (3) including feed liquor pipe A (31), feed liquor pipe B (32), feed liquor pipe C (33), drain pipe A (34), drain pipe B (35), drain pipe C (36), feed liquor pipe A (31), feed liquor pipe B (32), feed liquor pipe C (33), drain pipe A (34), drain pipe B (35), drain pipe C (36) one-to-one sealed intercommunication is at the logical groove port department on water conservancy diversion core (2).
4. The circulating radiation drill as set forth in claim 3, wherein: the middle positions of the through flow grooves A (21), B (22) and C (23) are spaced from each other.
5. The circulating radiation drill as set forth in claim 3, wherein: the flow guide core (2) is circular; the through groove is semicircular, and the ratio of the semicircular radius of the through groove to the circular radius of the flow guide core (2) is eight to one; the circular radius of the through groove is the same as the inner radius of the liquid through pipe (3), so that smooth and smooth liquid flowing is ensured.
6. The circulating heat dissipating drill as set forth in claim 1, wherein: the liquid inlet pipe A (31), the liquid inlet pipe B (32) and the liquid inlet pipe C (33) are respectively and closely distributed on the flow guide core (2) in a staggered way with the liquid outlet pipe A (34), the liquid outlet pipe B (35) and the liquid outlet pipe C (36).
7. The circulating radiation drill as set forth in claim 3, wherein: the drill rod body (1) is provided with six half-thread closed holes; the flow guide core (2) is provided with six half-thread blind holes which form a full-circle thread blind hole with the half-thread blind hole of the drill rod body (1) and are hermetically connected with the thread end of the liquid through pipe (3).
8. The circulating radiation drill as set forth in claim 3, wherein: a positioning groove (24) is arranged on the flow guide core (2); the drill rod body (1) is provided with a groove corresponding to the positioning groove (24); the device comprises an installation positioning block (4), wherein the inclined surface of the installation positioning block (4) is installed in a positioning groove (24).
9. The circulating radiation drill as set forth in claim 3, wherein: the middle part of the flow guide core (2) is provided with an installation thread blind hole.
10. A method of operating a circulating drill for heat dissipation using the circulating drill as claimed in any of claims 1 to 9, comprising the steps of: step 1: the mounting end of the drill rod body (1) is fixedly connected with the impact head (5) through threads;
step 2: the liquid inlet pipe A (31), the liquid inlet pipe B (32) and the liquid inlet pipe C (33) are respectively connected with the cooling liquid conveying main pipe through rotary sealing rings; the liquid outlet pipe A (34), the liquid outlet pipe B (35) and the liquid outlet pipe C (36) are respectively connected with a liquid outlet pipe through rotary sealing rings;
and step 3: the liquid inlet pipe A (31), the liquid inlet pipe B (32) and the liquid inlet pipe C (33) are respectively filled with cooling liquid, and the pressure difference value of the cooling liquid among the liquid inlet pipe A (31), the liquid inlet pipe C (33) and the liquid inlet pipe B (32) is 1200 pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130543.0A CN111270722A (en) | 2020-02-28 | 2020-02-28 | Circulating heat dissipation drill rod and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130543.0A CN111270722A (en) | 2020-02-28 | 2020-02-28 | Circulating heat dissipation drill rod and operation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111270722A true CN111270722A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010130543.0A Pending CN111270722A (en) | 2020-02-28 | 2020-02-28 | Circulating heat dissipation drill rod and operation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202913939U (en) * | 2012-09-16 | 2013-05-01 | 河南金宜精密磨具有限公司 | Water-circulating rock impact drill |
| CN203822309U (en) * | 2014-05-19 | 2014-09-10 | 黄河科技学院 | Drill rod and hydraulic hammer adopting same |
| CN204627428U (en) * | 2015-04-29 | 2015-09-09 | 成都大漠石油机械有限公司 | Drill bit cooling unit |
| CN206632387U (en) * | 2017-04-21 | 2017-11-14 | 宜昌长机科技有限责任公司 | Lathe tool knife bar cooling body |
| CN210023807U (en) * | 2019-06-17 | 2020-02-07 | 四川浩源机电有限责任公司 | Lathe tool with internal cooling structure |
-
2020
- 2020-02-28 CN CN202010130543.0A patent/CN111270722A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202913939U (en) * | 2012-09-16 | 2013-05-01 | 河南金宜精密磨具有限公司 | Water-circulating rock impact drill |
| CN203822309U (en) * | 2014-05-19 | 2014-09-10 | 黄河科技学院 | Drill rod and hydraulic hammer adopting same |
| CN204627428U (en) * | 2015-04-29 | 2015-09-09 | 成都大漠石油机械有限公司 | Drill bit cooling unit |
| CN206632387U (en) * | 2017-04-21 | 2017-11-14 | 宜昌长机科技有限责任公司 | Lathe tool knife bar cooling body |
| CN210023807U (en) * | 2019-06-17 | 2020-02-07 | 四川浩源机电有限责任公司 | Lathe tool with internal cooling structure |
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Application publication date: 20200612 |