CN113153169B - Energy-absorbing, damping and impact-preventing supporting device suitable for collapse of broken surrounding rock drilling - Google Patents
Energy-absorbing, damping and impact-preventing supporting device suitable for collapse of broken surrounding rock drilling Download PDFInfo
- Publication number
- CN113153169B CN113153169B CN202110551476.4A CN202110551476A CN113153169B CN 113153169 B CN113153169 B CN 113153169B CN 202110551476 A CN202110551476 A CN 202110551476A CN 113153169 B CN113153169 B CN 113153169B
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- Prior art keywords
- pressure
- bearing
- absorbing
- energy
- sliding
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Classifications
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- 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
- E21B12/00—Accessories for drilling tools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
An energy-absorbing, damping and impact-preventing support device suitable for the collapse of a broken surrounding rock drilling hole comprises a pressure-bearing slide bar, a pressure-bearing slide sleeve, a pressure-bearing spring, an energy-absorbing sleeve, a tray, a nut, a pressure-bearing support bar, a pressure-bearing slide block, a slide rail and a pressure-bearing support plate; the head end energy-absorbing sleeve, a plurality of sliding sleeve groups formed by pressure-bearing sliding sleeves, the tail end energy-absorbing sleeve, the tray and the nut are sleeved on the pressure-bearing sliding rod in sequence; the three bearing support plates are uniformly distributed along the circumferential direction of the bearing slide bars, the slide rails are arranged on the inner surface of the bearing support plates and are parallel to the bearing slide bars, the bearing slide blocks are slidingly connected to the slide rails, the inner ends of the bearing support rods are connected to the hinge lug connecting ends of the bearing slide sleeves through hinge lug seats, the outer ends of the bearing support rods are hinged to the bearing slide blocks, and the outer surfaces of the hinge lug connecting ends of the bearing slide sleeves are uniformly distributed with three hinge lug seats along the circumferential direction; the sliding sleeve group consists of two pressure-bearing sliding sleeves, the spring inserting ends of the two pressure-bearing sliding sleeves in the same sliding sleeve group are opposite, and the pressure-bearing spring is positioned between the spring inserting ends of the two pressure-bearing sliding sleeves.
Description
Technical Field
The invention belongs to the technical field of mining, and particularly relates to an energy-absorbing, shock-absorbing and impact-preventing support device suitable for broken surrounding rock drilling collapse.
Background
Rock burst is a complex mine dynamic disaster, and by perforating a coal rock mass with a risk of impact, the stress around the drill hole can be reduced, so that the risk of rock burst is reduced. The broken surrounding rock presents a block system structure state, and in the broken surrounding rock, the movement of a soft medium between blocks presents the dynamic characteristic of low-frequency large displacement, so that the pressure relief of drilling becomes an important means for preventing rock burst. And the collapse and blockage of the drilling holes can seriously affect the pressure relief effect, and the stable and safe mining work of the roadway is threatened. The effective drilling support can improve the utilization rate of drilling and the safety of mining work. Therefore, in order to avoid rock burst disasters caused by the dynamic phenomenon of breaking surrounding rock structure coal rocks, the innovation of the drilling collapse prevention technology is particularly important to solve the problem of the drilling collapse caused by the working environment of the mine. However, the existing drilling collapse prevention device is difficult to adapt to the phenomenon of drilling collapse caused by uncoordinated deformation generated by disturbance of broken surrounding rock in all directions.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides an energy-absorbing, damping and anti-impact supporting device suitable for the collapse of a broken surrounding rock drill hole, which is developed especially for the phenomenon of drill hole collapse caused by uncoordinated deformation generated by disturbance of the broken surrounding rock in all directions, and has excellent energy-absorbing, damping and anti-impact supporting effects.
In order to achieve the above purpose, the present invention adopts the following technical scheme: an energy-absorbing, damping and impact-preventing support device suitable for the collapse of a broken surrounding rock drilling hole comprises a pressure-bearing slide bar, a pressure-bearing slide sleeve, a pressure-bearing spring, an energy-absorbing sleeve, a tray, a nut, a pressure-bearing support bar, a pressure-bearing slide block, a slide rail and a pressure-bearing support plate; the head end of the pressure-bearing slide bar is provided with a slide bar stop block, the outer surface of the tail end rod body of the pressure-bearing slide bar is provided with external threads, and the nut is connected to the tail end rod body of the pressure-bearing slide bar through threads; the number of the energy-absorbing sleeves is two, the first energy-absorbing sleeve is sleeved on the pressure-bearing slide bar and is adjacent to the slide bar stop block, the second energy-absorbing sleeve is sleeved on the pressure-bearing slide bar and is adjacent to the nut, and the tray is sleeved on the pressure-bearing slide bar and is positioned between the nut and the second energy-absorbing sleeve; the number of the pressure-bearing sliding sleeves is several, the pressure-bearing sliding sleeves are sleeved on the pressure-bearing sliding rods between the head and the tail energy-absorbing sleeves, and the pressure-bearing sliding sleeves have linear movement degrees of freedom on the pressure-bearing sliding rods; the pressure-bearing sliding sleeves are divided into a hinge lug connecting end and a spring inserting end, the two pressure-bearing sliding sleeves are combined into a sliding sleeve group, the spring inserting ends of the two pressure-bearing sliding sleeves in the same sliding sleeve group are opposite, and a pressure-bearing spring is arranged between the spring inserting ends of the two pressure-bearing sliding sleeves and sleeved on the pressure-bearing sliding rod; three hinge lug seats are fixedly arranged on the outer surface of the hinge lug connecting end of the pressure-bearing sliding sleeve, are uniformly distributed along the circumferential direction of the pressure-bearing sliding sleeve, are hinged with the inner end of one pressure-bearing supporting rod, and are hinged with one pressure-bearing sliding block at the outer end of each pressure-bearing supporting rod; the number of the pressure-bearing support plates is three, the three pressure-bearing support plates are uniformly distributed along the circumferential direction of the pressure-bearing slide bar, the inner surface of each pressure-bearing support plate is provided with a slide rail, the slide rail is parallel to the pressure-bearing slide bar, and the head end of the slide rail is provided with a slide rail stop block; each pressure-bearing sliding block is connected to the corresponding sliding rail, and the pressure-bearing sliding blocks have linear movement freedom degrees on the sliding rails.
On the same sliding sleeve group, all pressure-bearing supporting rods are obliquely arranged towards one side of the spring inserting end of the pressure-bearing sliding sleeve, and between adjacent sliding sleeve groups, two adjacent pressure-bearing sliding blocks are propped against each other to be contacted together.
And pressure-bearing support rods are not required to be arranged on the pressure-bearing sliding sleeves adjacent to the head and tail energy-absorbing sleeves.
And the three pressure-bearing support plates are buckled together to form a complete cylindrical support cylinder.
The invention has the beneficial effects that:
the energy-absorbing, damping and impact-preventing support device suitable for the collapse of the broken surrounding rock drilling holes is developed particularly for the phenomenon of drilling collapse caused by uncoordinated deformation generated by the disturbance of the broken surrounding rock in all directions, and has excellent energy-absorbing, damping and impact-preventing support effect.
Drawings
FIG. 1 is a perspective view of an energy absorbing, shock absorbing and impact resistant support device suitable for fracture wall rock borehole collapse of the present invention;
FIG. 2 is a cross-sectional view of an energy absorbing, shock absorbing, impact resistant support device suitable for fracture wall rock borehole collapse of the present invention;
in the figure, 1-pressure-bearing slide bar, 2-pressure-bearing slide sleeve, 3-compression spring, 4-energy-absorbing sleeve, 5-tray, 6-nut, 7-pressure-bearing support bar, 8-pressure-bearing slide block, 9-slide rail, 10-pressure-bearing support plate, 11-slide bar stop block, 12-slide rail stop block and 13-hinge lug seat.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 and 2, an energy-absorbing, damping and impact-preventing support device suitable for the collapse of a broken surrounding rock drilling hole comprises a pressure-bearing slide bar 1, a pressure-bearing slide sleeve 2, a pressure-bearing spring 3, an energy-absorbing sleeve 4, a tray 5, a nut 6, a pressure-bearing support bar 7, a pressure-bearing slide block 8, a slide rail 9 and a pressure-bearing support plate 10; the head end of the pressure-bearing slide bar 1 is provided with a slide bar stop block 11, the outer surface of the tail end rod body of the pressure-bearing slide bar 1 is provided with external threads, and the nut 6 is connected to the tail end rod body of the pressure-bearing slide bar 1 through threads; the number of the energy-absorbing sleeves 4 is two, the first energy-absorbing sleeve 4 is sleeved on the pressure-bearing slide bar 1 and is adjacent to the slide bar stop block 11, the second energy-absorbing sleeve 4 is sleeved on the pressure-bearing slide bar 1 and is adjacent to the nut 6, and the tray 5 is sleeved on the pressure-bearing slide bar 1 and is positioned between the nut 6 and the second energy-absorbing sleeve 4; the number of the pressure-bearing sliding sleeves 2 is several, the pressure-bearing sliding sleeves 2 are sleeved on the pressure-bearing sliding rods 1 between the head and tail two energy-absorbing sleeves 4, and the pressure-bearing sliding sleeves 2 have linear movement freedom degrees on the pressure-bearing sliding rods 1; the pressure-bearing sliding sleeves 2 are divided into hinge lug connecting ends and spring inserting ends, the two pressure-bearing sliding sleeves 2 are combined into a sliding sleeve group, the spring inserting ends of the two pressure-bearing sliding sleeves 2 in the same sliding sleeve group are opposite, a compression spring 3 is arranged between the spring inserting ends of the two pressure-bearing sliding sleeves 2, and the compression spring 3 is sleeved on the pressure-bearing sliding rod 1; three hinge lug seats 13 are fixedly arranged on the outer surface of the hinge lug connecting end of the pressure-bearing sliding sleeve 2, the three hinge lug seats 13 are uniformly distributed along the circumferential direction of the pressure-bearing sliding sleeve 2, each hinge lug seat 13 is hinged with the inner end of one pressure-bearing supporting rod 7, and the outer end of each pressure-bearing supporting rod 7 is hinged with one pressure-bearing sliding block 8; the number of the pressure-bearing support plates 10 is three, the three pressure-bearing support plates 10 are uniformly distributed along the circumferential direction of the pressure-bearing slide bar 1, the inner surface of each pressure-bearing support plate 10 is provided with a slide rail 9, the slide rails 9 are parallel to the pressure-bearing slide bar 1, and the head end of each slide rail 9 is provided with a slide rail stop block 12; each pressure-bearing sliding block 8 is connected to a corresponding sliding rail 9, and the pressure-bearing sliding blocks 8 have linear movement freedom degrees on the sliding rails 9.
On the same sliding sleeve group, all pressure-bearing support rods 7 are obliquely arranged towards one side of the spring inserting end of the pressure-bearing sliding sleeve 2, and between the adjacent sliding sleeve groups, two adjacent pressure-bearing sliding blocks 8 are propped against each other to be contacted together.
The pressure-bearing support rods 7 are not required to be arranged on the pressure-bearing sliding sleeve 2 adjacent to the head and tail energy-absorbing sleeves 4.
The three bearing support plates 10 are buckled together to form a complete cylindrical support cylinder.
The following describes a one-time use procedure of the present invention with reference to the accompanying drawings:
after the drilling construction is finished, the distance between the tray 5 and the slide bar stop block 11 is increased by screwing the nut 6 according to the diameter of the drilling, the distance between the pressure-bearing sliding sleeves 2 can be increased by automatic extension of the pressure-bearing springs 3, and the pressure-bearing supporting rods 7 are further caused to deflect towards the pressure-bearing slide bars 1, so that the pressure-bearing supporting plate 10 approaches to the pressure-bearing slide bars 1, the radial size of the energy-absorbing, shock-absorbing and shock-preventing supporting device is reduced, and finally the energy-absorbing, shock-absorbing and shock-preventing supporting device can be smoothly inserted into the drilling.
After the energy-absorbing, shock-absorbing and impact-preventing support device is inserted into a drilled hole, the nuts 6 are reversely screwed to reduce the distance between the tray 5 and the slide bar stop block 11, the compression springs 3 are compressed by axial pressure, and meanwhile, the distance between the pressure-bearing sliding sleeves 2 is reduced again to further cause the pressure-bearing supporting rods 7 to deflect towards the inner hole wall of the drilled hole, so that the pressure-bearing supporting plates 10 are far away from the pressure-bearing sliding rods 1 to increase the radial size of the energy-absorbing, shock-absorbing and impact-preventing support device until all three pressure-bearing supporting plates 10 are tightly supported on the inner hole wall of the drilled hole, and at this time, the installation of the energy-absorbing, shock-absorbing and impact-preventing support device is finished.
When the broken surrounding rock is disturbed to generate large displacement deformation to cause borehole collapse, load force firstly acts on the three pressure-bearing support plates 10, and extrusion force is generated on the pressure-bearing support plates 10 in the radial direction, so that the pressure-bearing support plates 10 approach the pressure-bearing slide bars 1, and as the distance between the tray 5 and the slide bar stop blocks 11 is fixed, in the process that the pressure-bearing support plates 10 approach the pressure-bearing slide bars 1, the pressure-bearing support plates 7 are caused to deflect further the pressure-bearing slide bars 1, so that the distance between the pressure-bearing slide sleeves 2 is reduced, the compression springs 3 are forced to be compressed, and at the moment, impact energy is primarily consumed by compressing the compression springs 3.
If the compression spring 3 is compressed to a limit state, the impact energy is not completely consumed, and at the moment, the two energy-absorbing sleeves 4 positioned at the head and the tail of the pressure-bearing slide bar 1 are compressed and deformed, so that the impact energy is further consumed by compressing the energy-absorbing sleeves 4, and the effects of preventing borehole collapse, absorbing shock and preventing impact are achieved.
Assuming that the compression energy consumption of the energy-absorbing sleeve 4 does not completely counteract the impact energy, the three pressure-bearing support plates 10 are finally forced to be completely closed into a complete cylindrical support cylinder under the action of the load force, and the cylindrical support cylinder can further resist the deformation of the drilling hole, so that the purpose of preventing the drilling hole from collapsing is finally achieved.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (4)
1. Energy-absorbing shock attenuation scour protection strutting arrangement suitable for broken country rock drilling is subsided, its characterized in that: the device comprises a pressure-bearing slide bar, a pressure-bearing slide sleeve, a pressure-bearing spring, an energy-absorbing sleeve, a tray, a nut, a pressure-bearing support bar, a pressure-bearing slide block, a slide rail and a pressure-bearing support plate; the head end of the pressure-bearing slide bar is provided with a slide bar stop block, the outer surface of the tail end rod body of the pressure-bearing slide bar is provided with external threads, and the nut is connected to the tail end rod body of the pressure-bearing slide bar through threads; the number of the energy-absorbing sleeves is two, the first energy-absorbing sleeve is sleeved on the pressure-bearing slide bar and is adjacent to the slide bar stop block, the second energy-absorbing sleeve is sleeved on the pressure-bearing slide bar and is adjacent to the nut, and the tray is sleeved on the pressure-bearing slide bar and is positioned between the nut and the second energy-absorbing sleeve; the number of the pressure-bearing sliding sleeves is several, the pressure-bearing sliding sleeves are sleeved on the pressure-bearing sliding rods between the head and the tail energy-absorbing sleeves, and the pressure-bearing sliding sleeves have linear movement degrees of freedom on the pressure-bearing sliding rods; the pressure-bearing sliding sleeves are divided into a hinge lug connecting end and a spring inserting end, the two pressure-bearing sliding sleeves are combined into a sliding sleeve group, the spring inserting ends of the two pressure-bearing sliding sleeves in the same sliding sleeve group are opposite, and a pressure-bearing spring is arranged between the spring inserting ends of the two pressure-bearing sliding sleeves and sleeved on the pressure-bearing sliding rod; three hinge lug seats are fixedly arranged on the outer surface of the hinge lug connecting end of the pressure-bearing sliding sleeve, are uniformly distributed along the circumferential direction of the pressure-bearing sliding sleeve, are hinged with the inner end of one pressure-bearing supporting rod, and are hinged with one pressure-bearing sliding block at the outer end of each pressure-bearing supporting rod; the number of the pressure-bearing support plates is three, the three pressure-bearing support plates are uniformly distributed along the circumferential direction of the pressure-bearing slide bar, the inner surface of each pressure-bearing support plate is provided with a slide rail, the slide rail is parallel to the pressure-bearing slide bar, and the head end of the slide rail is provided with a slide rail stop block; each pressure-bearing sliding block is connected to the corresponding sliding rail, and the pressure-bearing sliding blocks have linear movement freedom degrees on the sliding rails.
2. An energy absorbing, shock absorbing and impact resistant support device suitable for fracture wall rock borehole collapse as claimed in claim 1, wherein: on the same sliding sleeve group, all pressure-bearing supporting rods are obliquely arranged towards one side of the spring inserting end of the pressure-bearing sliding sleeve, and between adjacent sliding sleeve groups, two adjacent pressure-bearing sliding blocks are propped against each other to be contacted together.
3. An energy absorbing, shock absorbing and impact resistant support device suitable for fracture wall rock borehole collapse as claimed in claim 1, wherein: and pressure-bearing support rods are not required to be arranged on the pressure-bearing sliding sleeves adjacent to the head and tail energy-absorbing sleeves.
4. An energy absorbing, shock absorbing and impact resistant support device suitable for fracture wall rock borehole collapse as claimed in claim 1, wherein: and the three pressure-bearing support plates are buckled together to form a complete cylindrical support cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551476.4A CN113153169B (en) | 2021-05-20 | 2021-05-20 | Energy-absorbing, damping and impact-preventing supporting device suitable for collapse of broken surrounding rock drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551476.4A CN113153169B (en) | 2021-05-20 | 2021-05-20 | Energy-absorbing, damping and impact-preventing supporting device suitable for collapse of broken surrounding rock drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113153169A CN113153169A (en) | 2021-07-23 |
| CN113153169B true CN113153169B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110551476.4A Active CN113153169B (en) | 2021-05-20 | 2021-05-20 | Energy-absorbing, damping and impact-preventing supporting device suitable for collapse of broken surrounding rock drilling |
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| CN (1) | CN113153169B (en) |
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| SU750058A1 (en) * | 1978-04-10 | 1980-07-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Железнодорожного Транспорта | Drilling machine supporting and feeding device |
| KR200401983Y1 (en) * | 2005-09-03 | 2005-11-23 | 신창우 | Device for rock drilling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9187995B2 (en) * | 2012-11-08 | 2015-11-17 | Baker Hughes Incorporated | Production enhancement method for fractured wellbores |
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2021
- 2021-05-20 CN CN202110551476.4A patent/CN113153169B/en active Active
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| SU750058A1 (en) * | 1978-04-10 | 1980-07-23 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Железнодорожного Транспорта | Drilling machine supporting and feeding device |
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| CN212194317U (en) * | 2020-01-16 | 2020-12-22 | 北京北排建设有限公司 | Equipment for shaping PE double-wall corrugated pipe |
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| CN113153169A (en) | 2021-07-23 |
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