CN211623372U - Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration - Google Patents
Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration Download PDFInfo
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- CN211623372U CN211623372U CN202020243430.7U CN202020243430U CN211623372U CN 211623372 U CN211623372 U CN 211623372U CN 202020243430 U CN202020243430 U CN 202020243430U CN 211623372 U CN211623372 U CN 211623372U
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Abstract
The utility model discloses a rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration, which comprises a bullet clip positioning assembly and a salvaging and pushing device, wherein the salvaging and pushing device comprises a joint, a catching mechanism and a pushing mechanism; the lower part of the joint is connected with a capturing mechanism and a pushing mechanism, and the pushing mechanism is positioned in the capturing mechanism; the elastic clamp positioning assembly comprises a clamping jaw, a pressing sleeve, a clamping jaw spring, a pressing cover, a clamping jaw support, a suspension ring and a pressing sleeve spring; the clamping jaw is hinged with the clamping jaw support, a gland is arranged at the upper part of the clamping jaw support, a pressing sleeve is arranged in an inner hole of the clamping jaw support, a flange is arranged in the middle of the side wall of the pressing sleeve, and the flange can be in contact with a positioning surface of the clamping jaw; a pressing sleeve spring is arranged between the pressing sleeve and the claw support. The utility model discloses can improve the centering effect of heavy-calibre horizontal drilling rope coring drilling tool in salvaging the reliability and the transportation process of recovery in retrenching the structure, reduce the demand of the heavy-calibre horizontal drilling in order to satisfy the engineering geology of the abnormal wear of drilling tool.
Description
Technical Field
The utility model relates to a rope coring drilling tool suitable for heavy-calibre horizontal engineering geological exploration.
Background
With the deep development of national strategic super engineering Chuangzang railway construction, engineering geological exploration faces new challenges. The geological conditions of the Chuanhang railway engineering are complex, the construction risk is high, and the existing equipment cannot adapt to the geological conditions at high altitude, so that the comprehensive geophysical prospecting geological forecast precision is low. And coring by horizontal drilling is a more intuitive method of geology exploration. Therefore, the research on long-distance, large-caliber, near-horizontal and high-precision drilling machines and tools is carried out, so that the geological forecast requirement of the construction of the ultra-long tunnel of the tibetan railway is met, the construction safety is ensured, and the construction efficiency is improved. The rope coring drilling technology has the advantages of high drilling efficiency, small disturbance degree on samples and the like, and is widely applied to the field of small-caliber geological exploration. However, the large-caliber long-distance near-horizontal exploration has the following main differences compared with the conventional geological exploration: conventional geological exploration typically has borehole diameters between 75mm and 150mm, with a near vertical borehole solution being the dominant borehole diameter, while large bore long distance horizontal exploration typically has borehole diameters between 300mm and 600mm, with a near horizontal borehole solution being employed. The increase of the diameter of the drill hole obviously increases the whole weight (the sum of the weight of the drill tool and the weight of the obtained core sample) of the drilling tool while increasing the number of the drilled core samples, the conventional geological exploration drilling tool usually adopts a spearhead structure to be matched with a fishing hook component in a fisher to realize the fishing and lifting of a drilling tool assembly, and the spearhead is a stress concentration point in the operation process. As the overall quality of the drill tool increases significantly, the risk of spearhead strength failure increases and the chances of potential drilling accidents increase. Compared with the vertical drilling scheme, the drilling tool is influenced by the gravity action when the nearly horizontal drilling is adopted, and the eccentric wear phenomenon of the drilling tool is easy to occur in the conveying process, so that the running resistance is increased. In addition, when the drilling tool is delivered for operation, the elastic clamping plate of the conventional drilling tool slides downwards against the inner surface of the drill rod under the action of spring force, and the abnormal abrasion is serious. In order to improve the positioning reliability of the elastic clamping plate, the spring stiffness is often required to be improved, meanwhile, the abrasion degree of the elastic clamping plate is increased, and the technical contradiction is more prominent in the process of delivering the deep hole. In fishing operation, the conventional wire line core drill usually depends on the retraction jack connected with the spearhead to move a certain distance along the axial direction, so as to realize the retraction of the ejection jack. The card receiving mode requires that enough movement clearance must be provided between the bullet card board and the bullet card stopper in the outer pipe assembly, and the bullet card board and the bullet card stopper are easy to be pushed up when drilling in a complex stratum, so that the card cannot be received smoothly, and the risk of the drill clamping accident is increased. At present, the rope core drilling tool for large-caliber near-horizontal engineering exploration mainly aims at enlarging the structure size on the premise of continuing using a conventional structure form, the advantages of a rope core drilling technology in large-caliber horizontal exploration are not fully exerted, and the working reliability and the stability are reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, convenient operation, reliability are high, the rope coring drilling tool that is applicable to heavy-calibre horizontal engineering geological exploration that leads to water can be good.
The utility model adopts the technical proposal that: the utility model provides a rope coring drilling tool suitable for horizontal engineering geological exploration of heavy-calibre, includes bullet card positioning assembly, salvages pusher, characterized by: the elastic clamp positioning assembly comprises a clamping jaw, a pressing sleeve, a clamping jaw spring, a pressing cover, a clamping jaw support, a suspension ring and a pressing sleeve spring; a plurality of through holes are formed in the jaw support, a jaw is hinged in each through hole, and the positioning surface of each jaw extends into the central hole of the jaw support; a clamping jaw spring is arranged between the clamping jaw and the clamping jaw support, a pressing cover is arranged on the clamping jaw support, a pressing sleeve is arranged in a central hole of the pressing cover, the lower part of the pressing sleeve is positioned in the clamping jaw support, a flange is arranged in the middle of the side wall of the pressing sleeve, and the flange can be in contact with a positioning surface of the clamping jaw; a pressing sleeve spring is arranged between the pressing sleeve and the jaw support, and a suspension ring is arranged at the lower part of the jaw support;
the fishing and pushing device comprises a joint, a catching mechanism and a pushing mechanism; the lower part of the joint is connected with a capturing mechanism and a pushing mechanism, and the pushing mechanism is positioned in the capturing mechanism; the lower end of the catching mechanism can catch the upper ends of the clamping jaws.
In the rope core drill suitable for the large-caliber horizontal engineering geological exploration, the bottom surface of the upper flange of the side wall of the pressing sleeve is a conical surface with a large upper part and a small lower part, and the lower part of the clamping jaw is provided with a limiting surface for limiting the rotation angle of the clamping jaw.
In the rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration, the upper end of the pushing mechanism is in threaded connection with the central hole of the joint, and the pushing mechanism is provided with the locking nut.
In the rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration, the lower part of the clamping jaw is provided with a through hole, the roller is arranged in the through hole through an elastic cylindrical pin, and the elastic cylindrical pin is parallel to the cylindrical pin.
In the rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration, a plurality of water passing grooves are uniformly distributed on the side surface of the jaw support and are arranged along a jaw support bus, and a plurality of through holes hinged with the jaws on the jaw support are uniformly distributed in the circumferential direction.
In the rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration, the water passing key grooves are uniformly distributed on the side surface of the suspension ring.
In the rope core drill suitable for large-caliber horizontal engineering geological exploration, the capturing mechanism is of a bell jar type structure, and the bottom of the capturing mechanism can be meshed with the top of the clamping jaw.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the total weight of the drilling tool is commonly born by the plurality of claws in the elastic clamp assembly when the fishing and lifting operation is carried out, so that the stress load of a single claw is reduced; compare in spearhead structural style, the utility model discloses can avoid because the too big risk that leads to spearhead intensity to become invalid of load, improve the reliability of operation process.
2) The utility model discloses a jack catch has the spearhead and the bullet cardboard location effect of conventional drilling tool concurrently, can reduce the part quantity of drilling tool assembly, makes its structure simpler, compact. In the horizontal throwing process, the roller at the lower part of the clamping jaw is in contact with the wall of the drill rod, so that the centering effect is achieved, the running resistance of the drilling tool is reduced, and the eccentric wear of the drilling tool caused by the gravity is reduced; the utility model discloses a jack catch in the bullet card assembly can be in the state of drawing in when the level is delivered thereby avoids delivering the excessive wear phenomenon of in-process, long service life.
3) The utility model discloses rely on catching mechanism of fisher to force the radial shrink of jack catch when the in-process of salvaging, compare in the form that conventional drilling tool relied on receipts cylinder axial displacement certain distance to realize bullet cardboard shrink, its shrink performance is reliable rapidly more, can avoid conventional drilling tool because play the cardboard and play the card shelves between the head lose the play and cause the risk of unable normal salvaging when complicated stratum drilling, the reliability is high, convenient operation moreover. Furthermore, the utility model discloses increased waterway system's the cyclic annular area of crossing water, the whole water performance that leads to of drilling tool is improved and is promoted.
Drawings
Fig. 1 is a sectional view of the clip positioning assembly of the present invention.
Fig. 2 is a schematic structural view of the clip positioning assembly of the present invention.
Fig. 3 is a schematic structural view of the jaw of the present invention.
Fig. 4 is a schematic structural view of the fishing pusher of the present invention.
Fig. 5 is a schematic diagram of the pushing status of the present invention.
Fig. 6 is a schematic view of the working state of the present invention.
Fig. 7 is a schematic view of the fishing state of the present invention.
In the figure: 1-a claw; 2, pressing a sleeve; 3-a jaw spring; 4-pressing the cover; 5-cylindrical pin; 6-elastic cylindrical pin; 7-a roller; 8-pressing a sleeve spring; 9-jaw support; 10-a suspension ring; 11-a puller head; 12-cylindrical pins; 13-a linker; 14-a lock nut; 15-a pushing mechanism; 16-a catching mechanism; 17-a drill rod; 18-a seat ring; 19-a cartridge chamber; 20-spring catch head; 92-water passing trough; 101-passing a water key groove; 021-positioning conical surface; 011-positioning surface; 012-limit surface.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-7, the utility model comprises a bullet clip positioning assembly and a fishing pushing device, wherein the fishing pushing device comprises a lifting head 11, a cylindrical pin 12, a joint 13, a locking nut 14, a pushing mechanism 15 and a catching mechanism 16; the lifting head 11 is hinged with the upper part of the joint 11 through a cylindrical pin 12, the lower part of the joint 11 is provided with a catching mechanism 13 and a pushing mechanism 14, the pushing mechanism 14 is positioned in the catching mechanism 13, the pushing mechanism 14 is in threaded connection with a central hole of the joint 11, and the pushing mechanism 14 is provided with a locking nut 12.
The elastic clamp positioning assembly comprises a clamping jaw 1, a pressing sleeve 2, a clamping jaw spring 3, a pressing cover 4, a roller 7, a pressing sleeve spring 8, a clamping jaw support 9 and a suspension ring 10; a plurality of water passing grooves 92 are uniformly distributed on the side surface of the jaw support 9 and are arranged along a jaw support bus. Be equipped with a plurality of through-holes 91 on the jack catch support 9, a plurality of through-holes 91 evenly arrange along the circumferencial direction, articulate a jack catch 1 through cylindric lock 5 in every through-hole 91, and the locating surface 011 of jack catch 1 stretches into in the centre bore of jack catch support. Set up jack catch spring 3 between jack catch 1 and the jack catch support 9, be equipped with gland 4 on the jack catch support 9, be provided with in the centre bore of gland 4 and press cover 2, press the lower part of cover 2 to be located jack catch support 9, the middle part of pressing the 2 lateral walls of cover is equipped with the flange, the flange can contact with jack catch 1's locating surface 011. The bottom surface of the upper flange of the side wall of the pressing sleeve 2 is a conical surface with a large upper part and a small lower part, and the lower part of the clamping jaw 1 is also provided with a limiting surface 012 for limiting the rotation angle of the clamping jaw. The lower part of the clamping jaw 1 is provided with a through hole, the roller 7 is arranged in the through hole through an elastic cylindrical pin 6, and the elastic cylindrical pin 6 is arranged in parallel to the cylindrical pin 5. A pressing sleeve spring 8 is arranged between the pressing sleeve 2 and the jaw support 9, a hanging ring 10 is arranged on the lower portion of the jaw support 9, and a plurality of water passing key grooves 101 are uniformly distributed on the side face of the hanging ring 10. The catching mechanism 16 is of a bell-jar type structure, and the bottom of the catching mechanism 16 can be meshed with the top of the clamping jaw 1.
The utility model discloses a concrete application method as follows:
the utility model discloses a rigidity top pushes away the mode (like hard tube or high strength steel strand wires) and carries out drilling tool propelling movement and recovery, at first will salvage catching mechanism 16 among the pusher and dump when carrying out the propelling movement operation, then will salvage pushing mechanism 15 among the pusher and cooperate with pressing in the bullet card assembly 2. Because the pushing mechanism 15 applies an axial force to the pressing sleeve 2, the pressing sleeve 2 overcomes the elastic force of the pressing sleeve spring 8 to generate axial movement, the conical surface 021 of the pressing sleeve 2 is in contact with the positioning surface 011 of the jaw 1, the jaw 1 is forced to rotate around the cylindrical pin 5, the upper part of the jaw 1 is in a folded state, and the lower roller 7 of the jaw 1 is in contact with the wall of the drill rod 17 in an outward stretching mode. And the salvaging and pushing device pushes the drilling tool to carry out horizontal pushing operation.
When the pushing is in place, the pushing mechanism 15 is retracted, and the pressing sleeve 2 is reset under the elastic force of the pressing sleeve spring 8. At the moment, the pressing sleeve 2 is not contacted with the jaw 1, the jaw 1 is reset and expanded under the spring force of the clamp spring 3, and the jaw 1 is clamped in the elastic clamping chamber 19 of the outer pipe assembly to carry out normal drilling operation of the drilling tool.
After the drilling operation is finished, fishing and recovering operation is carried out, firstly, the pushing mechanism 15 in the fishing and pushing device is detached, then the catching mechanism 16 is installed, after the installation is finished, the fishing and pushing device is conveyed into a central hole of the catching mechanism 13 in a rigid pushing mode (such as a hard pipe or a high-strength steel strand), so that the bell-shaped catching mechanism 16 in the fishing and pushing device covers the clamping jaw 1 in the bullet card assembly, and the top of the clamping jaw 1 is mutually meshed with the bottom of the catching mechanism 16. At the moment, the claw 1 rotates around the cylindrical pin 5 to fold the claw 1, the fishing and pushing device is pulled to lift the inner pipe assembly together from the bottom of the hole, and the fishing operation flow is completed.
Claims (7)
1. The utility model provides a rope coring drilling tool suitable for horizontal engineering geological exploration of heavy-calibre, includes bullet card positioning assembly, salvages pusher, characterized by: the elastic clamp positioning assembly comprises a clamping jaw, a pressing sleeve, a clamping jaw spring, a pressing cover, a clamping jaw support, a suspension ring and a pressing sleeve spring; a plurality of through holes are formed in the jaw support, a jaw is hinged in each through hole, and the positioning surface of each jaw extends into the central hole of the jaw support; a clamping jaw spring is arranged between the clamping jaw and the clamping jaw support, a pressing cover is arranged on the clamping jaw support, a pressing sleeve is arranged in a central hole of the pressing cover, the lower part of the pressing sleeve is positioned in the clamping jaw support, a flange is arranged in the middle of the side wall of the pressing sleeve, and the flange can be in contact with a positioning surface of the clamping jaw; a pressing sleeve spring is arranged between the pressing sleeve and the jaw support, and a suspension ring is arranged at the lower part of the jaw support;
the fishing and pushing device comprises a joint, a catching mechanism and a pushing mechanism; the lower part of the joint is connected with a capturing mechanism and a pushing mechanism, and the pushing mechanism is positioned in the capturing mechanism; the lower end of the catching mechanism can catch the upper ends of the clamping jaws.
2. A wireline coring drill suitable for use in large bore horizontal engineering geological exploration, as defined in claim 1, wherein: the bottom surface of the upper flange of the side wall of the pressing sleeve is a conical surface with a large upper part and a small lower part, and the lower part of the clamping jaw is provided with a limiting surface for limiting the rotation angle of the clamping jaw.
3. A wireline coring drill suitable for use in large bore horizontal engineering geological exploration, as defined in claim 1, wherein: the lower part of the clamping jaw is provided with a through hole, the roller is arranged in the through hole through an elastic cylindrical pin, and the elastic cylindrical pin is parallel to the cylindrical pin.
4. A wireline coring drill suitable for use in large bore horizontal engineering geological exploration, as defined in claim 1, wherein: a plurality of water passing grooves are uniformly distributed on the side face of the jaw support and are arranged along a jaw support bus, and a plurality of through holes hinged with the jaws on the jaw support are uniformly distributed along the circumferential direction.
5. A wireline coring drill suitable for use in large bore horizontal engineering geological exploration, as defined in claim 1, wherein: the side surface of the suspension ring is uniformly distributed with water passing key slots.
6. A wireline coring drill suitable for use in large bore horizontal engineering geological exploration, as defined in claim 1, wherein: the catching mechanism is of a bell-jar type structure, and the bottom of the catching mechanism can be meshed with the tops of the clamping jaws.
7. A wireline coring drill suitable for use in large bore horizontal engineering geological exploration, as defined in claim 1, wherein: the upper end of the pushing mechanism is in threaded connection with a central hole of the joint, and a locking nut is arranged on the pushing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020243430.7U CN211623372U (en) | 2020-03-03 | 2020-03-03 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020243430.7U CN211623372U (en) | 2020-03-03 | 2020-03-03 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
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| CN211623372U true CN211623372U (en) | 2020-10-02 |
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| CN202020243430.7U Active CN211623372U (en) | 2020-03-03 | 2020-03-03 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119776A (en) * | 2020-03-03 | 2020-05-08 | 湖南科技大学 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119776A (en) * | 2020-03-03 | 2020-05-08 | 湖南科技大学 | Rope coring drilling tool suitable for large-caliber horizontal engineering geological exploration |
| CN111119776B (en) * | 2020-03-03 | 2024-04-09 | 湖南科技大学 | Rope core drilling tool suitable for large-caliber horizontal engineering geological exploration |
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