CN114233227A - Sealing device for core drill - Google Patents
Sealing device for core drill Download PDFInfo
- Publication number
- CN114233227A CN114233227A CN202210170691.4A CN202210170691A CN114233227A CN 114233227 A CN114233227 A CN 114233227A CN 202210170691 A CN202210170691 A CN 202210170691A CN 114233227 A CN114233227 A CN 114233227A
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- CN
- China
- Prior art keywords
- slide
- hole
- sliding
- pressing structure
- drill
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/10—Formed core retaining or severing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/08—Coating, freezing, consolidating cores; Recovering uncontaminated cores or cores at formation pressure
Abstract
The invention discloses a sealing device of a core drill, belonging to the technical field of mining mechanical equipment. This a core drill sealing device includes: the ball valve mechanism comprises a valve sleeve and a valve core, the valve sleeve is arranged in the drill cylinder, the valve sleeve is of a tubular structure, the valve core is arranged in a pipe hole of the valve sleeve, the pipe hole of the valve sleeve is communicated with a central through hole of the drill bit and the sampling cylinder, and a plunger is further arranged in the pipe hole of the valve sleeve; the trigger mechanism comprises a pressing structure, an energy storage spring and a sliding block, wherein the pressing structure is arranged at one end, far away from the drill bit, of the sampling cylinder, the pressing structure is connected with the energy storage spring, one end of the energy storage spring is connected with the sliding block, the sliding block is arranged in the drilling cylinder, and the sliding block is connected with the valve core. The sealing device of the core drill tool can completely cut off the ore sample when the ore layer is sampled, so that the problems of incomplete sampling and the like caused by uneven sections of the ore sample during cutting of the ore sample can be solved.
Description
Technical Field
The invention relates to the technical field of mining mechanical equipment, in particular to a sealing device of a core drill.
Background
In the evaluation of deposits and the calculation of reserves, the solution of problems related to geology, mining, dressing and metallurgy, the comprehensive utilization of mineral products and the like, the sampling of the deposits is required. The mineral sampling refers to that a certain amount of samples are collected from ore bodies, surrounding rocks, mines and the like according to a certain specification or requirement, and the quality of the mineral and the physicochemical properties of the ore are researched by the methods of processing, analysis, test, identification and the like so as to provide data basis for later mineral mining. When the seam is sampled, a corresponding core drill is needed. When the seam sampling is carried out, the integrity of the mine sample has great influence on the analysis, test and identification of the later-period sample, and therefore, when the seam sampling is carried out, the integrity of the mine sample needs to be ensured.
The existing core drill tool generally comprises a drill barrel, a drill bit and a sampling barrel, when the core drill tool is used for sampling an ore layer, the drill barrel is driven by a drilling machine to rotate, the drill bit is driven by the rotating drill barrel to rotate, the drill bit is utilized to drill, a through hole in the drill bit is communicated with the sampling barrel arranged in the drill barrel, and along with the feeding of the whole core drill tool, an ore sample enters the sampling barrel from the through hole of the drill bit and is collected, so that the sampling is completed. However, the existing core drill is difficult to completely intercept the ore sample during sampling, and the problem of incomplete sampling and the like is easily caused by uneven cross section of the ore sample during interception.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a sealing device of a core drill, which can completely cut off an ore sample when the ore layer is sampled, so that the problems of incomplete sampling and the like caused by uneven sections of the ore sample during cutting can be solved.
The invention provides a sealing device of a core drill, which comprises:
the ball valve mechanism comprises a valve sleeve and a valve core, the valve sleeve is arranged in the drill cylinder, the valve sleeve is of a tubular structure, the valve core is arranged in a pipe hole of the valve sleeve, the pipe hole of the valve sleeve is communicated with a central through hole of the drill bit and the sampling cylinder, and a plunger is further arranged in the pipe hole of the valve sleeve;
the trigger mechanism comprises a pressing structure, an energy storage spring and a sliding block, wherein the pressing structure is arranged at one end, far away from the drill bit, of the sampling cylinder, the pressing structure is connected with the energy storage spring, one end of the energy storage spring is connected with the sliding block, the sliding block is arranged in the drilling cylinder, and the sliding block is connected with the valve core.
Preferably, the trigger mechanism further comprises a stop ring and a slide rod, the stop ring is connected with the drill cylinder, one end of the sliding rod is fixedly connected with the baffle ring, the other end of the sliding rod is provided with a first sliding hole, the pressing structure is connected with the first sliding hole in a sliding way, a compression spring is further arranged in the first sliding hole, the compression spring is abutted against the pressing structure, the sliding block is provided with a second sliding hole, the sliding block is connected with the sliding rod in a sliding way through the second sliding hole, a first groove is arranged in the second sliding hole, a ball is arranged in the first groove and used for limiting the sliding of the sliding block relative to the sliding rod, a second groove is arranged on the side wall of the pressing structure, a third sliding hole is arranged on the side wall of the second sliding hole, one end of the third sliding hole is communicated with the first groove, the other end of the third sliding hole is communicated with the second groove, the energy storage spring is arranged between the retaining ring and the sliding block and is abutted to the retaining ring.
Preferably, a sliding sleeve is arranged between the sliding block and the valve core, one end of the sliding sleeve is abutted to the sliding block, a rack is arranged at the other end of the sliding sleeve, a gear is arranged on the valve core, and the rack is in tooth connection with the gear.
Preferably, one end of the sliding rod, which is close to the pressing structure, is fixedly connected with a stop block, and the stop block is used for limiting the sliding of the sliding block.
Preferably, the stopper is provided with a fourth sliding hole, and the pressing structure is slidably connected with the fourth sliding hole.
Preferably, the pressing structure includes a thimble and a contact pin, the thimble is slidably connected to the first sliding hole, the second groove is disposed on the side wall of the thimble, the contact pin is connected to the thimble, the contact pin is slidably connected to the fourth sliding hole, and the thimble is configured to limit the sliding of the contact pin relative to the fourth sliding hole.
Compared with the prior art, the invention has the beneficial effects that: the sealing device of the core drill tool can completely cut off the ore sample when the ore layer is sampled, so that the problems of incomplete sampling and the like caused by uneven sections of the ore sample during cutting of the ore sample can be solved. The trigger mechanism of the device is of a mechanical structure, and the reliability of the trigger mechanism can be ensured. Through setting up rack and gear, the slider promotes the sliding sleeve motion, utilizes rack and gear drive, can transmit great moment of torsion to prevent that the case from being blocked by the ore sample. Through setting up the dog, utilize the dog restriction slider to slide, can prevent that the slider from breaking away from the slide bar, guarantee the normal operating of whole device. Through setting up the fourth slide opening, utilize the guide effect of fourth slide opening, can prevent to press the structure and be pinned and block when being extruded, press the structure. The thimble and the contact pin of the pressing structure are arranged to be of a split structure, so that the whole pressing structure can be prevented from being separated from the first sliding hole, and the normal operation of the whole device is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the ball valve mechanism of the present invention;
FIG. 3 is a schematic structural diagram of the trigger mechanism of the present invention;
fig. 4 is a schematic view of the assembly structure of the ball valve mechanism and the sliding sleeve of the invention.
Description of reference numerals:
101. the mechanical hand-operated drill comprises a valve sleeve, 102, a valve core, 103, a sampling cylinder, 104, a drill bit, 105, a plunger, 106, a pressing structure, 107, an energy storage spring, 108, a slide block, 109, a drill cylinder, 201, a retaining ring, 202, a slide rod, 203, a first slide hole, 204, a compression spring, 205, a ball, 206, a second groove, 207, a third slide hole, 208, a second slide hole, 209, a first groove, 301, a slide sleeve, 302, a rack, 303, a gear, a 4 stop, 401, a fourth slide hole, 501, an ejector pin, 502 and a contact pin.
Detailed Description
Detailed description of the preferred embodimentsthe following detailed description of the present invention will be given with reference to the accompanying drawings 1-4, but it should be understood that the scope of the present invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1:
as shown in fig. 1-3, the present invention provides a sealing device for a core drill, comprising: the sampling device comprises a ball valve mechanism and a trigger mechanism, wherein the ball valve mechanism comprises a valve sleeve 101 and a valve core 102, the valve sleeve 101 is arranged in a drill barrel 109, the valve sleeve 101 is of a tubular structure, the valve core 102 is arranged in a pipe hole of the valve sleeve 101, the pipe hole of the valve sleeve 101 is communicated with a central through hole of a drill bit 104 and a sampling barrel 103, and a plunger 105 is further arranged in the pipe hole of the valve sleeve 101; the trigger mechanism comprises a pressing structure 106, an energy storage spring 107 and a slide block 108, wherein the pressing structure 106 is arranged at one end, far away from the drill bit 104, of the sampling barrel 103, the pressing structure 106 is connected with the energy storage spring 107, one end of the energy storage spring 107 is connected with the slide block 108, the slide block 108 is arranged in the drill barrel 109, and the slide block 108 is connected with the valve core 102.
The working principle of example 1 is now briefly described:
when the ore bed is sampled, the drill cylinder 109 is driven by a drilling machine to rotate, when the drill cylinder 109 feeds into the ore bed, the ore sample in the central through hole in the drill bit 104 pushes the plunger 105 to move into the drill cylinder 109, and the ore sample enters the sampling pipe through the hole of the valve ball valve core 102. Along with the continuous feeding of the drill cylinder 109, the mineral sample touches and extrudes the pressing structure 106 which is positioned at one end of the sampling cylinder 103 far away from the drill bit 104, the pressing mechanism releases the energy storage spring 107 connected with the pressing structure, the energy storage spring 107 releases the elastic force, the elastic force pushes the sliding block 108 to slide, the sliding block 108 pushes the valve core 102 connected with the sliding block to rotate, the rotating valve core 102 is used for carrying out the mineral sample stage, so that the whole sampling cylinder 103 is closed, the mineral sample in the sampling cylinder 103 is completely intercepted, and the problems of incomplete sampling and the like caused by uneven section of the mineral sample during the interception can be prevented.
The sealing device of the core drill tool can completely cut off the ore sample when the ore layer is sampled, so that the problems of incomplete sampling and the like caused by uneven sections of the ore sample during cutting of the ore sample can be solved.
Example 2:
in addition to embodiment 1, in order to ensure the reliability of the trigger mechanism.
As shown in fig. 1 and 3, the trigger mechanism further includes a stop ring 201 and a slide rod 202, the stop ring 201 is connected to the drill barrel 109, one end of the slide rod 202 is fixedly connected to the stop ring 201, the other end of the slide rod 202 is provided with a first slide hole 203, the pressing structure 106 is slidably connected to the first slide hole 203, a compression spring 204 is further disposed in the first slide hole 203, the compression spring 204 abuts against the pressing structure 106, the slider 108 is provided with a second slide hole 208, the slider 108 is slidably connected to the slide rod 202 through the second slide hole 208, a first groove 209 is disposed in the second slide hole 208, a ball 205 is disposed in the first groove 209, the ball 205 is used for limiting the slider 108 to slide relative to the slide rod 202, a second groove 206 is disposed on a side wall of the pressing structure 106, a third slide hole 207 is disposed on a side wall of the second slide hole 208, one end of the third slide hole 207 is communicated with the first groove 209, and the other end of the third slide hole 207 is communicated with the second groove 206, the energy storage spring 107 is arranged between the retaining ring 201 and the sliding block 108, and the energy storage spring 107 is abutted to the retaining ring 201.
After the pressing structure 106 is contacted with the mineral sample, the mineral sample presses the pressing structure 106, the pressing structure 106 slides towards the inside of the first sliding block 108, the compression spring 204 is pressed by the pressing structure 106 until the first groove 209 on the second sliding hole 208 is communicated with the third sliding hole 207 and the second groove 206, at this time, the ball 205 used for limiting the sliding of the sliding block 108 relative to the sliding rod 202 slides from the first groove 209 to the second groove 206, at this time, the motion limitation of the sliding block 108 is released, the elastic force of the energy storage spring 107 is released, the spring pushes the sliding block 108 to slide on the sliding rod 202, the sliding block 108 drives the valve core 102 to rotate, so that the mineral sample is cut off and the sampling cylinder 103 is sealed, the mechanical structure is used as a trigger mechanism, and the reliability of the trigger mechanism can be ensured.
As a preferable scheme, as shown in fig. 1 and 2, a sliding sleeve 301 is disposed between the slider 108 and the valve core 102, one end of the sliding sleeve 301 abuts against the slider 108, a rack 302 is disposed at the other end of the sliding sleeve 301, a gear 303 is disposed on the valve core 102, and the rack 302 is in gear contact with the gear 303. Through setting up rack 302 and gear 303, slider 108 promotes sliding sleeve 301 motion, and rack 302 on sliding sleeve 301 drives gear 303 and rotates to drive plug 102 and rotate, utilizes rack 302 and gear 303 transmission, can transmit great moment of torsion, thereby prevents that plug 102 from being blocked by the ore sample.
Preferably, as shown in fig. 1 and 3, a stop 4 is attached to one end of the slide bar 202 near the pressing structure 106, and the stop 4 is used for limiting the sliding of the slide block 108. Through setting up dog 4, utilize dog 4 to restrict the slider 108 and slide, can prevent that slider 108 from breaking away from slide bar 202, guarantee the normal operating of whole device.
Preferably, as shown in fig. 3, the stopper 4 is provided with a fourth sliding hole 401, and the pressing structure 106 is slidably connected to the fourth sliding hole 401. By providing the fourth slide hole 401, the pressing structure 106 can be prevented from being stuck when being pressed by the guide function of the fourth slide hole 401.
Preferably, as shown in fig. 1 and 3, the pressing structure 106 includes a thimble 501 and a contact pin 502, the thimble 501 is slidably connected to the first sliding hole 203, the second groove 206 is disposed on a sidewall of the thimble 501, the contact pin 502 is connected to the thimble 501, the contact pin 502 is slidably connected to the fourth sliding hole 401, and the thimble 501 is configured to limit sliding of the contact pin 502 relative to the fourth sliding hole 401. The thimble 501 and the contact pin 502 which are of the split structure are arranged on the pressing structure 106, so that the whole device can be conveniently detached and installed, the thimble 501 is used for limiting the sliding of the contact pin 502 relative to the fourth sliding hole 401, the whole pressing structure 106 can be prevented from being separated from the first sliding hole 203, and the normal operation of the whole device can be ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A core drill sealing device, comprising:
the ball valve mechanism comprises a valve sleeve (101) and a valve core (102), the valve sleeve (101) is arranged in a drill barrel (109), the valve sleeve (101) is of a tubular structure, the valve core (102) is arranged in a pipe hole of the valve sleeve (101), the pipe hole of the valve sleeve (101) is communicated with a central through hole of a drill bit (104) and a sampling barrel (103), and a plunger (105) is further arranged in the pipe hole of the valve sleeve (101);
the trigger mechanism comprises a pressing structure (106), an energy storage spring (107) and a sliding block (108), wherein the pressing structure (106) is arranged at one end, far away from a drill bit (104), of the sampling cylinder (103), the pressing structure (106) is connected with the energy storage spring (107), one end of the energy storage spring (107) is connected with the sliding block (108), the sliding block (108) is arranged in the drilling cylinder (109), and the sliding block (108) is connected with the valve core (102).
2. The sealing device of the core drill as claimed in claim 1, wherein the trigger mechanism further comprises a stop ring (201) and a slide rod (202), the stop ring (201) is connected with the drill barrel (109), one end of the slide rod (202) is fixedly connected with the stop ring (201), the other end of the slide rod (202) is provided with a first slide hole (203), the pressing structure (106) is slidably connected with the first slide hole (203), a compression spring (204) is further arranged in the first slide hole (203), the compression spring (204) abuts against the pressing structure (106), the slide block (108) is provided with a second slide hole (208), the slide block (108) is slidably connected with the slide rod (202) through the second slide hole (208), a first groove (209) is arranged in the second slide hole (208), a ball (205) is arranged in the first groove (209), and the ball (205) is used for limiting the slide block (108) to slide relative to the slide rod (202), pressing structure (106) lateral wall and being equipped with second recess (206), second slide opening (208) lateral wall is equipped with third slide opening (207), third slide opening (207) one end and first recess (209) intercommunication, third slide opening (207) other end and second recess (206) intercommunication, energy storage spring (107) are located keep off between ring (201) and slider (108), energy storage spring (107) with keep off ring (201) butt.
3. The sealing device of the core drill as recited in claim 1, characterized in that a sliding sleeve (301) is arranged between the sliding block (108) and the valve core (102), one end of the sliding sleeve (301) is abutted against the sliding block (108), the other end of the sliding sleeve (301) is provided with a rack (302), the valve core (102) is provided with a gear (303), and the rack (302) is in tooth connection with the gear (303).
4. The sealing device of claim 1, wherein a stop (4) is attached to the end of the sliding rod (202) adjacent to the pressing structure (106), the stop (4) being configured to limit the sliding movement of the sliding block (108).
5. Core drill sealing device according to claim 4, characterized in that said stopper (4) is provided with a fourth slide hole (401), said pressing structure (106) being slidably connected to said fourth slide hole (401).
6. The core drill sealing device according to claim 4, wherein the pressing structure (106) comprises a thimble (501) and a contact pin (502), the thimble (501) is slidably connected with the first sliding hole (203), the second groove (206) is formed in a side wall of the thimble (501), the contact pin (502) is connected with the thimble (501), the contact pin (502) is slidably connected with the fourth sliding hole (401), and the thimble (501) is used for limiting sliding of the contact pin (502) relative to the fourth sliding hole (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210170691.4A CN114233227B (en) | 2022-02-24 | 2022-02-24 | Sealing device for core drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210170691.4A CN114233227B (en) | 2022-02-24 | 2022-02-24 | Sealing device for core drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233227A true CN114233227A (en) | 2022-03-25 |
| CN114233227B CN114233227B (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210170691.4A Active CN114233227B (en) | 2022-02-24 | 2022-02-24 | Sealing device for core drill |
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| CN (1) | CN114233227B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961617A (en) * | 2022-07-29 | 2022-08-30 | 陕西太合智能钻探有限公司 | Hydrodynamic core drill |
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| CN111425165A (en) * | 2020-04-29 | 2020-07-17 | 中国石油大学(华东) | Arc closed ball valve sealing device for pressure maintaining and coring of coal bed gas |
| CN211784419U (en) * | 2020-02-27 | 2020-10-27 | 焦作煤业（集团）有限责任公司 | While-drilling fixed-point airtight sampling device |
| CN113137197A (en) * | 2021-06-03 | 2021-07-20 | 中国地质大学（北京） | High-rank coal sample coring device |
| CN113356779A (en) * | 2021-07-14 | 2021-09-07 | 西南石油大学 | Coring device and coring method |
| CN113622849A (en) * | 2021-10-14 | 2021-11-09 | 陕西太合智能钻探有限公司 | Closed core drilling tool |
| CN114016943A (en) * | 2021-11-18 | 2022-02-08 | 程贺 | Coal bed gas well rope coring drilling device |
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2022
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| US6009960A (en) * | 1998-01-27 | 2000-01-04 | Diamond Products International, Inc. | Coring tool |
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| CN109653696A (en) * | 2018-12-11 | 2019-04-19 | 广州海洋地质调查局 | The rotary coring drilling with keep up pressure device of gas hydrates |
| CN110273659A (en) * | 2019-06-28 | 2019-09-24 | 中国石油集团长城钻探工程有限公司 | A kind of self-priming confining pressure protection coring inner drum and application method |
| CN211784419U (en) * | 2020-02-27 | 2020-10-27 | 焦作煤业（集团）有限责任公司 | While-drilling fixed-point airtight sampling device |
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| CN113137197A (en) * | 2021-06-03 | 2021-07-20 | 中国地质大学（北京） | High-rank coal sample coring device |
| CN113356779A (en) * | 2021-07-14 | 2021-09-07 | 西南石油大学 | Coring device and coring method |
| CN113622849A (en) * | 2021-10-14 | 2021-11-09 | 陕西太合智能钻探有限公司 | Closed core drilling tool |
| CN114016943A (en) * | 2021-11-18 | 2022-02-08 | 程贺 | Coal bed gas well rope coring drilling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114961617A (en) * | 2022-07-29 | 2022-08-30 | 陕西太合智能钻探有限公司 | Hydrodynamic core drill |
| CN114961617B (en) * | 2022-07-29 | 2022-10-25 | 陕西太合智能钻探有限公司 | Hydrodynamic core drill |
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| Publication number | Publication date |
|---|---|
| CN114233227B (en) | 2022-05-31 |
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Denomination of invention: A sealing device for core drilling tools Effective date of registration: 20230801 Granted publication date: 20220531 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: SHAANXI TAIHE INTELLIGENT DRILLING Co.,Ltd. Registration number: Y2023980050616 |