CN204754813U - Special elevator for drilling horizontal hole of conventional core drilling machine - Google Patents
Special elevator for drilling horizontal hole of conventional core drilling machine Download PDFInfo
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- CN204754813U CN204754813U CN201520310420.XU CN201520310420U CN204754813U CN 204754813 U CN204754813 U CN 204754813U CN 201520310420 U CN201520310420 U CN 201520310420U CN 204754813 U CN204754813 U CN 204754813U
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- elevator
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- shaped hook
- nut
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- 238000005553 drilling Methods 0.000 title abstract description 45
- 238000003466 welding Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 206010000372 Accident at work Diseases 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of the rig instrument among the engineering machine tool, concretely relates to special elevator that is used for conventional core drill horizontal hole to bore down. The elevator is mainly composed of an open-ended cylindrical elevator body, a U-shaped hook and a nut, wherein the U-shaped hook is welded on the elevator body, a clamping groove is formed in the top of the elevator body, and the nut is welded on the clamping groove. The U-shaped hook is welded in the middle of the elevator body and is vertical to the opening surface of the cylinder body; two nuts are symmetrical about elevator body y axle, and two nuts cooperation bolts are used, drop when preventing that the elevator from pulling the drilling rod and removing. The U-shaped hook can be connected with a hoisting steel wire rope of a drilling machine on the horizontal plane, and the traction force is converted into reverse traction force through a directional pulley arranged near an orifice, so that the aim of drilling a horizontal hole into a drill rod and putting the drill rod into the hole is fulfilled. The utility model provides a difficult problem of horizontal hole drilling down.
Description
Technical field
The utility model relates to the rig technical field of tools in engineering machinery, specifically a kind of special elevator for boring under conventional core rig lateral aperture.
Background technology
Municipal engineering is laid and is passed through street, the pipeline of building or cable, and in engineering construction, the culvert in railroad crossing, highway, river or pipeline, need carry out horizontal resistance force.Horizontal drilling is according to engine request, and aperture is little of tens millimeters, large to l rice, also has to leave drilling pipe and keep path.Horizontal resistance force generally uses the rotary drill of all kinds energy horizontal drilling.
Compared with vertical drilling, lateral aperture difficulty of construction is larger.Imbody is in the following areas:
(1) gravity direction of drilling tool there occurs change with the direction of creeping into.When vertical core creeps into, the gravity direction of drilling tool is consistent with direction of drilling, and drift angle and orientation play effect of contraction; Horizontal drilling is then different, and at an angle of 90, this can make drilling tool move towards to become tiltedly naturally, thus departs from orientation of drilling for drilling tool gravity direction and drilling direction.
(2) upright opening can be accomplished to be pressurizeed by drill collar, and top rod is in tension state; And horizontal drilling can must produce the pressure of the drill by drilling rod to drill bit applying pressure by rig, this just has drill-string in compression and becomes curved problem.
(3) make a trip difficulty.When completing a footage per round trip, rig is rotated by elevator and drives wire rope to extract in rock core process, except overcoming the gravity of drilling rod, rig itself, also need to overcome the frictional force of itself and hole wall, therefore, contrast upright opening creeps into, same hole depth, lateral aperture construction needs larger horsepower, namely with low one grade of rotating speed; In going down process, need, around boring, fairlead is installed, change elevator steel cable direction of pull, need equally to overcome drilling rod, drilling tool and hole wall frictional force, and enter in boring procedure at promotion drilling rod, drilling rod often bends, and lineoutofservice signal pull is decomposed into vertical force and horizontal force, more exacerbates the burden of rig.
At engineering investigation drilling field, elevator is as the important tool of in drilling equipment utensil, be one extremely important, be used for carrying the critical component hanging drilling rod, drilling tool, its upper end is connected with rig master winch wire rope, lower end is connected with drilling rod, along with the folding and unfolding of master winch wire rope, drive the lifting of drilling rod and drill bit, transfer.At present, elevator used on the market can meet completely that the hole that has a down dip is risen, lower brill and lateral aperture trip-out needs, but bores under cannot being used for lateral aperture.Main cause is: bore under the hole that has a down dip (comprising upright opening) and rely on drilling rod self gravitation, does not need external force to descend to bore; And lateral aperture needs to overcome drilling rod, drilling tool and hole wall frictional force, therefore need to apply external force just can reach lower brill object in drilling rod.
In horizontal resistance force going down process, wire rope on hoist for driller changes the Impact direction acting on drilling rod by fairlead, namely " pulling force " becomes " thrust ", and conventional elevator applying is pulling force, how to process a special elevator for boring under lateral aperture, ensure safe and reliable, easy to operate, become the technical problem that must overcome.
Summary of the invention
The purpose of this utility model be to provide a kind of structure simple, safe and reliable, can be used in lateral aperture under the special elevator that bores.
The purpose of this utility model is achieved through the following technical solutions: a kind of special elevator for boring under conventional core rig lateral aperture, cylinder primarily of opening capable elevator body, welding U-shaped hook on the body and nut composition, the top of described elevator body is provided with draw-in groove, each welding nut on draw-in groove.
Described elevator body is enclosed within drilling rod groove, and described draw-in groove blocks drilling rod groove.
Two nut specifications on described body are consistent, and central point line is vertical with elevator body axis, and namely two nuts are symmetrical about elevator body y-axis.
Described U-shaped hook is positioned in the middle part of elevator body and perpendicular to the capable body opening surface of cylinder, U-shaped hook is connected with the rig hoisting rope through fixed pulley.
Nut screw connection bolt on described elevator body uses (nominal diameter of screw bolt and nut is identical, screw thread type is identical, pitch is equal, rotation direction consistent), can prevent elevator from drawing when drilling rod moves and come off.
Compared with prior art, the beneficial effects of the utility model are:
1. providing a kind of elevator for boring under horizontal resistance force, solving and cannot buy the difficult problem of this type of elevator for boring under lateral aperture on the market.
2. nut on the utility model is arranged, and can prevent elevator from drawing when drilling rod moves and come off, and avoids coming off the industrial accident caused because of elevator.
3. the U-shaped hook on the utility model can be connected with rig hoisting rope in the horizontal plane, and tractive force is converted into reverse tractive force by the directed pulley be arranged near aperture, thus the hole drill that is up to the standard enters the object under drilling rod in hand-hole.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is special elevator structural representation (elevation) of the present utility model.
Fig. 2 is the lateral view of Fig. 1.
In figure, 1-tubular elevator body, 2-U-shaped hook, 3,4-nut, 5,6-draw-in groove.
Detailed description of the invention
As shown in Figures 1 and 2, special elevator of the present utility model comprises elevator body 1, U-shaped hook 2, nut 3 and nut 4.The top of elevator body 1 is provided with draw-in groove 5 and draw-in groove 6.U-shaped hook 2 to be welded in the middle part of elevator body 1 and perpendicular to the capable body opening surface of cylinder; Nut 3, nut 4 are symmetrical about elevator body y-axis, nut 3 and nut 4 specification, model are identical, central point line is vertical with elevator body axis, each welding nut 3,4 on draw-in groove, nut 3,4 fitted bolt is fixed, prevent from elevator from drawing drilling rod to come off when moving, avoid coming off initiation industrial accident because of elevator.
During use, be enclosed within by elevator body 1 on drilling rod groove, draw-in groove blocks drilling rod groove, and elevator fixed by nut 3 and nut 4 fitted bolt, and U-shaped hook is connected with the rig hoisting rope through fixed pulley, and the rotation of rig elevator just can be drawn drilling rod and be entered in boring.
Claims (3)
1. the special elevator for boring under conventional core rig lateral aperture, it is characterized in that: for the special elevator that bores under conventional core rig lateral aperture primarily of the cylinder capable elevator body of opening, welding U-shaped hook on the body and nut composition, the top of described elevator body is provided with draw-in groove, and nut-welding is on draw-in groove.
2. require the described special elevator for boring under conventional core rig lateral aperture according to claim 1, it is characterized in that: described draw-in groove welds two nuts, two nut specifications are consistent, its central point line is vertical with cylinder capable elevator body axis, and two nuts are symmetrical about elevator body y-axis.
3. requiring the described special elevator for boring under conventional core rig lateral aperture according to claim 1, it is characterized in that: described U-shaped hook to be positioned in the middle part of a row elevator body and perpendicular to cylinder capable elevator body openings face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310420.XU CN204754813U (en) | 2015-05-14 | 2015-05-14 | Special elevator for drilling horizontal hole of conventional core drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520310420.XU CN204754813U (en) | 2015-05-14 | 2015-05-14 | Special elevator for drilling horizontal hole of conventional core drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204754813U true CN204754813U (en) | 2015-11-11 |
Family
ID=54469532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520310420.XU Active CN204754813U (en) | 2015-05-14 | 2015-05-14 | Special elevator for drilling horizontal hole of conventional core drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204754813U (en) |
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2015
- 2015-05-14 CN CN201520310420.XU patent/CN204754813U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |