CN210164436U - Novel mechanical rotary reaming device - Google Patents
Novel mechanical rotary reaming device Download PDFInfo
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- CN210164436U CN210164436U CN201920933564.9U CN201920933564U CN210164436U CN 210164436 U CN210164436 U CN 210164436U CN 201920933564 U CN201920933564 U CN 201920933564U CN 210164436 U CN210164436 U CN 210164436U
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- 238000005553 drilling Methods 0.000 claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 239000003245 coal Substances 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 15
- 239000011435 rock Substances 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model discloses a novel rotatory reaming of machinery device, including trompil drilling rod and reaming drilling rod and guard hole drilling rod, the trompil drilling rod is horizontal shaft-like part and the inside limbers that link up the trompil drilling rod along long being equipped with of trompil drilling rod, the trompil drilling rod right-hand member is round platform form delivery port, it is protruding that the delivery port left part is equipped with the three-layer drilling rod from the right side to a left side in proper order, trompil drilling rod limbers left end is equipped with the internal thread, trompil drilling rod left part is equipped with the reaming drilling rod, the reaming drilling rod right-hand member is equipped with the external screw thread, reaming drilling rod external screw thread left part is equipped with the reaming of three-layer along reaming drilling rod circumference arrangement from the right side to a left side in proper order and is protruding. The utility model has the advantages that: not only has the hole protecting function, but also can effectively reduce the rotation resistance of the drill rod and reduce the loss of the drilling machine.
Description
Technical Field
The utility model belongs to the technical field of soft coal petrography drilling, concretely relates to novel rotatory reaming of machinery device.
Background
At present, soft coal rock drilling construction is a well-known worldwide problem, in the drilling construction process, due to the fact that the strength of a soft coal rock body is low, the deformation of a hole wall is large, the local instability and damage of the hole wall are prone to occur, drill cuttings are prone to being accumulated in a drill hole and causing the drill hole to be blocked, and drilling construction is difficult to conduct.
The problem of soft coal rock drilling difficult problem is solved, the development of "equipment outside the hole" should not only be noted, also the research of "equipment in the hole" such as the drilling rod, drill bit should be noted simultaneously, there is a double-casing drilling tool used for soft coal seam drilling at present, but this drilling tool has two aspects problem: on one hand, the drilling machine is large in corollary equipment, needs a large drilling field, is difficult to adapt to underground conditions, is relatively complex in drilling process and low in drilling efficiency, and on the other hand, when drilling is carried out in a soft coal rock area, the deformation of the drilled hole is large, the outer pipe serving as a hole protection effect is completely contacted with the wall of the drilled hole, the friction resistance is large, and in the drilling process, the phenomena of drill sticking and drill breaking are frequent, so that the drilling depth is shallow, and the drilling efficiency is low.
Therefore, the conventional double-casing drilling tool is not suitable for the soft coal rock area with complicated geological conditions, and a novel drilling tool is urgently needed to be developed.
Disclosure of Invention
The utility model provides a novel rotatory reaming of machinery device not only has the hole protecting function, can effectively reduce the rotating resistance of drilling rod moreover, reduces the rig loss.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a novel mechanical rotary reaming device comprises a perforated drill rod, a reaming drill rod and a hole protection drill rod, wherein the perforated drill rod is a horizontal and transverse rod-shaped part, a water through hole penetrating through the perforated drill rod is formed in the inner portion of the perforated drill rod along the length direction, the rightmost end of the perforated drill rod is a truncated cone-shaped water outlet, the diameter of the left portion of the water outlet is larger than that of the right portion of the perforated drill rod, three layers of drill rod protrusions are sequentially arranged on the left portion of the water outlet from right to left, the protrusion structure of each layer of drill rod is similar in shape, the protrusion of each layer of drill rod is sequentially increased from right to left, the diameter of the outermost ring of each layer of protrusion is uniformly distributed with 4 protrusions along the circumferential direction of the perforated drill rod, the protrusions spirally protrude outwards in an anticlockwise direction from the surface of the perforated; the left part of the trepanning drill rod is provided with a reaming drill rod, the reaming drill rod is a rod-shaped part horizontally and transversely arranged, a water through hole penetrating through the reaming drill rod is arranged in the reaming drill rod along the length direction, the rightmost end of the reaming drill rod is provided with an external thread, the external thread at the right end of the reaming drill rod is matched and fixedly connected with the internal thread of the trepanning drill rod, the left part of the external thread of the reaming drill rod is sequentially provided with three layers of reaming bulges arranged along the circumferential direction of the reaming drill rod from right to left, the shape of each layer of the reaming bulges is similar to that of the; the left part of the hole protection drill rod is provided with a hole protection drill rod, the hole protection drill rod is a circular pipeline which is horizontally and transversely arranged and is internally provided with a water through hole along the length, the right end of the hole protection drill rod is provided with a rightward cylindrical protrusion, the cylindrical protrusion is provided with an external thread, the external thread of the hole protection drill rod and the internal thread of the hole protection drill rod are matched and fixedly connected with each other, the left end of the water through hole of the hole protection drill rod is provided with an internal thread, and the internal thread of the; the diameter of the outer ring of the reaming bulge at the leftmost end is slightly larger than that of the hole-protecting drill rod.
Furthermore, the right side of the protrusion is a backward inclined front face, the left side of the protrusion is a forward inclined rear face, the angle formed by the rear face of the drill rod protrusion of the first layer and the front face of the drill rod protrusion of the second layer is X4=100 degrees, and the like, the angle formed by the rear face of each layer of protrusion and the front face of the protrusion of the next layer is X3=100 degrees, X2=70 degrees, X1=70 degrees, the connecting position of the rear face of each layer of protrusion and the front face of the protrusion of the next layer is a connecting arc, and the connecting arc is in natural; the top end of each projection is a cutting arc, the radian of 4 cutting arcs of each projection is equal, the radian of the cutting arc of the projection of the leftmost layer of the drill rod is R1=8, and the radian of each cutting arc is R2=8, R3=8, R4=3, R5=3 and R6=3 in sequence; the lower part of the projection is a straight surface, the straight surface is perpendicular to the normal direction of the corresponding drill rod, the upper part of the projection is an arc surface, the center line of the corresponding drill rod is respectively deviated to the left, the right, the upper and the lower by a certain amount to be used as a circle center, then circles are drawn by the four circle centers by a certain radius, the part of the four circles, which is cut by the four straight surfaces, is the arc surface of the projection, the circle center offset of the projection of the leftmost layer of the drill rod of the perforated drill rod is LI =3.3mm, the diameter of the circle is RI =21mm, the diameter of the outermost circle of the projection of the formed drill rod is phi I =40mm, the circle center offset of each layer of the projection is LH =4.1mm, LG =8mm, LE =8mm, LF =12.4mm, LD =17.7mm, the diameter of the circle drawn by each layer of the projection is RH =26mm, RG =34mm, RE =34mm, RF =43mm and RD =53mm, the diameter of the outermost circle center offset of the, Φ D =80 mm; the diameter of the hole-protecting drill rod is 60mm, and the diameter of the water through hole is 20 mm.
Furthermore, the central lines of the hole drilling rod, the hole expanding drilling rod and the hole protecting drilling rod are all located on the same straight line, and the diameter of the water through hole of the hole drilling rod, the diameter of the water through hole of the hole expanding drilling rod and the diameter of the water through hole of the hole protecting drilling rod are the same and the positions of the water through holes are corresponding.
Furthermore, the diameter of the leftmost outer ring of the drill rod protrusion is the same as that of the rightmost outer ring of the reaming protrusion, and the left end and the right end of the whole outer diameter are large and small and are conical after the drill rod with the hole is fixedly connected with the reaming drill rod.
Furthermore, the positions of the drill rod protrusions on each layer of the drill rod on the drill rod with the holes correspond to each other, the drill rod protrusions on each layer are in smooth transition connection, the top points of the drill rod protrusions are in contact with the soft coal rocks, and other parts of the drill rod protrusions are not in contact with the soft coal rocks.
Furthermore, a plurality of hole-protecting drill rods with the same structure can be sequentially spliced with the hole-protecting drill rod external threads through the hole-protecting drill rod internal threads, and the length of the whole drill rod is lengthened.
Compared with the prior art, the beneficial effects of the utility model are that:
in the utility model, three layers of drill rod protrusions are sequentially arranged at the left part of the water outlet from right to left, the structure shape of each layer of drill rod protrusion is similar, the diameter of the outermost ring of each layer of protrusion increases from right to left, 4 protrusions are uniformly distributed on the protrusion of each layer of drill rod along the circumferential direction of the hole drilling rod, the protrusion spirally protrudes outwards in a counterclockwise direction from the surface of the hole drilling rod as a starting point, the size of the root of the protrusion is large, the size gradually decreases upwards until the top of the protrusion decreases to a sharp point, three layers of reaming protrusions arranged along the circumferential direction of the reaming drill rod are sequentially arranged at the left part of the external thread of the reaming drill rod from right to left, the shape of the reaming protrusion structure is similar to that of the drill rod protrusion structure, the height of each layer of protrusion increases from right to left, the common drill rod is that the sharp cutting edge is all contacted, the drill rod is changed into a plurality of raised points to be in contact with the soft coal rock, so that the resistance of the drill rod is reduced, a protection is provided for a drilling machine, the service life of the drill rod is prolonged, the diameter of the outer ring of each layer of the raised points is gradually increased, the left end and the right end of the whole outer diameter are large and small after the drill rod with the hole is fixedly connected with the reaming drill rod and are in a conical shape, the conical drill rod can gradually widen the diameter of the hole, the resistance of drilling is further reduced, meanwhile, the surface area of the drill rod is increased by the plurality of the raised points, and the larger the surface area is, the stronger the;
in the utility model, the left end of the water hole of the reaming drill rod is provided with an internal thread, the left part of the reaming drill rod is provided with a hole protection drill rod, the hole protection drill rod is a circular pipeline which is horizontally and transversely arranged and is internally provided with a water hole along the length, the right end of the hole protection drill rod is provided with a right cylindrical bulge and an external thread on the cylindrical bulge, the external thread of the hole protection drill rod and the internal thread of the reaming drill rod are mutually matched and fixedly connected, the left end of the water hole of the hole protection drill rod is provided with an internal thread, and the internal thread; protruding outer lane diameter of leftmost end reaming is slightly greater than pilot hole drilling rod diameter, the diameter ratio reaming drilling rod of pilot hole drilling rod is slightly littleer, do not cause the injury to the deep pore wall and promote the drilling rod other parts simultaneously rotatory and advance, when the unstability destruction takes place for the pore wall, the pilot hole drilling rod can prop up whole deep hole inner space, can not let the deep hole large tracts of land collapse and lead to the drilling rod whole to bury unable work, there is the pilot hole function, when the length of drilling rod is not enough, splice a plurality of pilot hole drilling rods in proper order, can lengthen drilling rod overall length, and the operation is simple.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the completed assembly of the drill pipe of FIG. 1 with the reamer and the hole protector;
FIG. 3 is a general cross-sectional view of the drill pipe of FIG. 1 with the reamer and the hole protector;
figure 4 is a partial cross-sectional view of the utility model of figure 1;
FIG. 5 is a cross-sectional view taken at view I-I of FIG. 4;
FIG. 6 is a cross-sectional view taken at angle H-H of FIG. 4;
FIG. 7 is a cross-sectional view taken at a view angle G-G of FIG. 4;
FIG. 8 is a cross-sectional view taken at E-E of FIG. 4;
FIG. 9 is a cross-sectional view taken at angle F-F of FIG. 4;
fig. 10 is a cross-sectional view taken from a perspective D-D of fig. 4.
In the figure, 1, a drill pipe is drilled, 2, a reaming drill pipe, 3, a hole protecting drill pipe, 4, a water outlet, 5, a drill pipe protrusion, 6, a reaming protrusion, 7, a water through hole, 8, a protrusion, 9, an arc surface, 10, a straight surface, 11, a front surface, 12, a back surface, 13, a cutting arc and 14, a connecting arc.
Detailed Description
Example (b): as shown in the figures 1 and 2, respectively, as shown in fig. 3, the drill rod comprises a perforated drill rod 1, a reaming drill rod 2 and a hole protection drill rod 3, wherein the perforated drill rod 1 is a horizontal and transverse rod-shaped part, a water through hole 7 penetrating through the perforated drill rod 1 is formed in the perforated drill rod 1 along the length, the rightmost end of the perforated drill rod 1 is a truncated cone-shaped water outlet 4, the diameter of the left part of the water outlet 4 is larger than that of the right part of the perforated drill rod 1, three layers of drill rod protrusions 5 are sequentially arranged on the left part of the water outlet 4 from right to left, the structural shape of each layer of drill rod protrusion 5 is similar, the diameter of each layer of protrusion 8 from right to left is sequentially increased, 4 protrusions 8 are uniformly distributed on each layer of drill rod protrusions 5 along the circumferential direction of the perforated drill rod 1, the protrusions 8 spirally protrude outwards in an anticlockwise direction from the surface of the perforated drill rod 1 as a starting point, the; the left part of the drill rod 1 is provided with a reaming drill rod 2, the reaming drill rod 2 is a rod-shaped part horizontally and transversely arranged, a water through hole 7 penetrating through the reaming drill rod 2 is formed in the inner edge of the reaming drill rod 2 along a long direction, the rightmost end of the reaming drill rod 2 is provided with an external thread, the external thread at the right end of the reaming drill rod 2 is matched and fixedly connected with the internal thread of the drill rod 1, the left part of the external thread of the reaming drill rod 2 is sequentially provided with three layers of reaming bulges 6 arranged along the circumferential direction of the reaming drill rod 2 from right to left, the structures of the reaming bulges 6 are similar to the structure shape of the drill rod bulges 5, the heights; a hole protection drill rod 3 is arranged at the left part of the hole expansion drill rod 2, the hole protection drill rod 3 is a circular pipeline which is horizontally and transversely arranged and is internally provided with a water through hole 7 along the length, a right cylindrical protrusion is arranged at the right end of the hole protection drill rod 3, external threads are arranged on the cylindrical protrusion, the external threads of the hole protection drill rod 3 and the internal threads of the hole expansion drill rod 2 are matched and fixedly connected with each other, internal threads are arranged at the left end of the water through hole 7 of the hole protection drill rod 3, and the internal threads of the hole protection drill rod; the diameter of the outer ring of the leftmost reaming bulge 6 is slightly larger than that of the hole-protecting drill rod 3.
The right side of each protrusion 8 is a backward inclined front face 11, the left side of each protrusion 8 is a forward inclined rear face 12, the angle formed by the rear face 12 of the drill rod protrusion 5 of the first layer and the front face 11 of the drill rod protrusion 5 of the second layer is X4=100 degrees, and the like, the angle formed by the rear face 12 of each protrusion 8 of each layer and the front face 11 of the protrusion 8 of the next layer is X3=100 degrees, X2=70 degrees and X1=70 degrees, the connecting point of the rear face 12 of each protrusion 8 of each layer and the front face 11 of the protrusion 8 of the next layer is a connecting arc 14, and the connecting arc; the top end of each protrusion 8 is provided with a cutting arc 13, the radian of 4 cutting arcs 13 of each layer of protrusion 8 is equal, the radian of the cutting arc 13 of the leftmost layer of drill rod protrusion 5 is R1=8, and in the same way, the radian of each layer of cutting arc 13 is R2=8, R3=8, R4=3, R5=3 and R6=3 in sequence; the lower part of the projection 8 is a straight surface 10, the straight surface 10 is perpendicular to the normal direction of the corresponding drill rod, the upper part of the projection 8 is an arc surface 9, the center line of the corresponding drill rod is respectively deviated leftwards, rightwards, upwards and downwards by a certain amount to serve as the center of a circle, then the four centers of the circle are drawn into a circle with a certain radius, the part of the four circles, which is cut by the four straight surfaces 10, is the arc surface 9 of the projection 8, the center deviation amount of the leftmost layer of the drill rod projection 5 of the drill rod 1 is LI =3.3mm, the diameter of the circle is RI =21mm, the outermost circle diameter of the projection 5 of the drill rod is phi I =40mm, the center deviation amount of each layer of the projection 8 is LH =4.1mm, LG =8mm, LE =8mm, LF =12.4mm, LD =17.7mm, the drawing circle diameter of each layer of the projection 8 is RH =26mm, RG =34mm, RE =34mm, RF =43mm, RD =53mm, Φ G =60mm, Φ E =60mm, Φ F =70mm, Φ D =80 mm; the diameter of the hole-protecting drill rod 3 is 60mm, and the diameter of the water through hole 7 is 20 mm.
The center lines of the drill rod 1 with the hole, the reaming drill rod 2 and the hole protection drill rod 3 are located on the same straight line, the water through hole 7 of the drill rod 1 with the hole 7 of the reaming drill rod 2 and the water through hole 7 of the drill rod 3 with the hole are the same in diameter and corresponding in position, the diameter of the leftmost outer ring of the drill rod protrusion 5 is the same as that of the rightmost outer ring of the reaming protrusion 6, the left end of the whole outer diameter of the drill rod 1 fixedly connected with the reaming drill rod 2 is large and the right end of the whole outer diameter is small, the drill rod 1 with the hole is conical, the positions of the drill rod protrusions 5 on each layer of the drill rod 1 correspond to each other, smooth transitional connection is formed between the drill rod protrusions 5 on each layer of the drill rod, the top points of the drill rod protrusions 5 are in contact with soft coal rocks, other parts are not in contact with the.
The working process is as follows: the method comprises the steps of sequentially connecting a hole drilling rod 1, a hole expanding drilling rod 2 and a hole protecting drilling rod 3 through threads, fixedly connecting the hole protecting drilling rod 3 with a corresponding drilling machine through internal threads of the hole protecting drilling rod 3, starting the drilling machine, injecting water into a water through hole 7 by the drilling machine, simultaneously driving the hole protecting drilling rod 3 to rotate, drilling a shallow hole on soft coal rock in advance by using a common drill bit, contacting the front end of the hole drilling rod 1 with the shallow hole, automatically aligning a conical structure of the hole drilling rod 1 with the shallow hole, crushing the soft coal rock by a rotary drilling rod bulge 5 to gradually form a deep hole, continuously spraying water at the right end of a water outlet 4 to convey the crushed soft coal rock from a gap between the bulge 8 and the bulge 8 to the outside the hole, simultaneously cooling the continuously rotary drilling rod by the sprayed water, continuously drilling the hole drilling rod 1 continuously drilling towards the deep part of the soft coal rock, enabling the hole expanding drilling rod 2 to enter the deep hole, in the guard aperture drilling rod 3 also got into the deep hole, the diameter ratio reaming drilling rod 2 of guard aperture drilling rod 3 is slightly littleer, does not cause the injury to promote simultaneously the drilling rod other parts rotatory and advance to the deep hole wall, when the unstability destruction takes place for the pore wall, whole deep hole inner space can be supported to guard aperture drilling rod 3, can not let the deep hole large tracts of land collapse lead to the drilling rod to whole burying unable work, when the length of drilling rod is not enough, splice a plurality of guard aperture drilling rods 3 in proper order, can lengthen the whole length of drilling rod.
Claims (6)
1. The utility model provides a novel rotatory reaming of machinery device which characterized in that: the drill rod drilling machine comprises a perforated drill rod (1), a hole expanding drill rod (2) and a hole protecting drill rod (3), wherein the perforated drill rod (1) is a horizontal and transverse rod-shaped part, a water through hole (7) penetrating through the perforated drill rod (1) is formed in the perforated drill rod (1) along the length, the rightmost end of the perforated drill rod (1) is a circular truncated cone-shaped water outlet (4), the diameter of the left part of the water outlet (4) is larger than that of the right part of the perforated drill rod, three layers of drill rod protrusions (5) are sequentially arranged in the left part of the water outlet (4) from right to left, the structural shapes of the drill rod protrusions (5) of each layer are similar, the diameters of the protrusions (8) of each layer are sequentially increased from right to left, 4 protrusions (8) are uniformly distributed in the circumferential direction of the perforated drill rod (1) in each layer of drill rod protrusions (5), the protrusions (8) are spirally protruded from the surface of the perforated drill rod (1) as, the left end of a water through hole (7) of the hole drilling rod (1) is provided with an internal thread; the left part of the drill rod (1) is provided with a reaming drill rod (2), the reaming drill rod (2) is a rod-shaped part horizontally and transversely arranged, a water through hole (7) penetrating through the reaming drill rod (2) is formed in the reaming drill rod (2) along the length of the inner part of the rod-shaped part, the rightmost end of the reaming drill rod (2) is provided with an external thread, the external thread at the right end of the reaming drill rod (2) is matched and fixedly connected with the internal thread of the drill rod (1), the left part of the external thread of the reaming drill rod (2) is sequentially provided with three layers of reaming bulges (6) arranged along the circumferential direction of the reaming drill rod (2) from right to left, the structures of the reaming bulges (6) are similar to the structure shape of the drill rod bulges (5), the heights of; a hole protection drill rod (3) is arranged at the left part of the hole expansion drill rod (2), the hole protection drill rod (3) is a circular pipeline which is horizontally and transversely arranged and is internally provided with a water through hole (7) along the length, a right cylindrical bulge is arranged at the right end of the hole protection drill rod (3), an external thread is arranged on the cylindrical bulge, the external thread of the hole protection drill rod (3) is matched and fixedly connected with the internal thread of the hole expansion drill rod (2), an internal thread is arranged at the left end of the water through hole (7) of the hole protection drill rod (3), and the internal thread of the hole protection drill rod (3) is matched with the external; the diameter of the outer ring of the leftmost reaming bulge (6) is slightly larger than that of the hole-protecting drill rod (3).
2. The novel mechanical rotary reaming device according to claim 1, characterized in that: the right side of the protrusion (8) is a backward inclined front face (11), the left side of the protrusion (8) is a forward inclined rear face (12), the angle formed by the rear face (12) of the first layer of drill rod protrusion (5) and the front face (11) of the second layer of drill rod protrusion (5) is X4=100 degrees, and the like, the angle formed by the rear face (12) of each layer of protrusion (8) and the front face (11) of the next layer of protrusion (8) is X3=100 degrees, X2=70 degrees, X1=70 degrees, the connecting part of the rear face (12) of each layer of protrusion (8) and the front face (11) of the next layer of protrusion (8) is a connecting arc (14), and the connecting arc (14) is in natural transition; the top end of each protrusion (8) is provided with a cutting arc (13), the radian of 4 cutting arcs (13) of each layer of protrusion (8) is equal, the radian of the cutting arc (13) of the leftmost layer of drill rod protrusion (5) is R1=8, and the radians of each layer of cutting arc (13) are R2=8, R3=8, R4=3, R5=3 and R6=3 in sequence; the lower part of the protrusion (8) is a straight surface (10), the straight surface (10) is perpendicular to the normal direction of the corresponding drill rod, the upper part of the protrusion (8) is an arc surface (9), the center line of the corresponding drill rod respectively deviates to the left, the right, the upper and the lower by a certain amount to serve as a circle center, then a circle is drawn through the four circle centers by a certain radius, the part of the four circles intercepted by the four straight surfaces (10) is the arc surface (9) of the protrusion (8), the circle center deviation of the leftmost layer of drill rod protrusion (5) of the perforated drill rod (1) is LI =3.3mm, the circle diameter is RI =21mm, the diameter of the outermost circle of the drill rod protrusion (5) is phi I =40mm, and by analogy, the circle center deviation of each layer of protrusion (8) is LH =4.1mm, LE =8mm, LF =12.4mm, LD =17.7mm, and the circle diameter of each layer of protrusion (8) is RH =26mm, RG =34mm, RE =34mm, RF =43, RD =53mm, the diameter of the outermost circle of the drill rod protrusion (5) is phi H =50mm, phi G =60mm, phi E =60mm, phi F =70mm and phi D =80mm in sequence; the diameter of the hole-protecting drill rod (3) is 60mm, and the diameter of the water through hole (7) is 20 mm.
3. The novel mechanical rotary reaming device according to claim 1, characterized in that: the central lines of the hole drilling rod (1), the reaming drilling rod (2) and the hole protection drilling rod (3) are all located on the same straight line, and the diameter of the water through hole (7) of the hole drilling rod (1), the diameter of the water through hole (7) of the reaming drilling rod (2) and the diameter of the water through hole (7) of the hole protection drilling rod (3) are the same and the positions of the water through holes are corresponding.
4. The novel mechanical rotary reaming device according to claim 1, characterized in that: the diameter of the leftmost outer ring of the drill rod protrusion (5) is the same as that of the rightmost outer ring of the reaming protrusion (6), and the left end and the right end of the whole outer diameter of the drilling rod (1) are large and small and are conical after the drilling rod (1) and the reaming drilling rod (2) are fixedly connected.
5. The novel mechanical rotary reaming device according to claim 1, characterized in that: the positions of the drill rod protrusions (5) on each layer of the drill rod (1) are corresponding to each other, the drill rod protrusions (5) on each layer are in smooth transition connection, the top points of the drill rod protrusions (5) are in contact with soft coal rocks, and other parts of the drill rod protrusions are not in contact with the soft coal rocks.
6. The novel mechanical rotary reaming device according to claim 1, characterized in that: a plurality of hole-protecting drill rods (3) with the same structure can be sequentially spliced with the external threads of the hole-protecting drill rods (3) through the internal threads of the hole-protecting drill rods (3), so that the length of the whole drill rod is lengthened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920933564.9U CN210164436U (en) | 2019-06-20 | 2019-06-20 | Novel mechanical rotary reaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920933564.9U CN210164436U (en) | 2019-06-20 | 2019-06-20 | Novel mechanical rotary reaming device |
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| Publication Number | Publication Date |
|---|---|
| CN210164436U true CN210164436U (en) | 2020-03-20 |
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ID=70170408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920933564.9U Withdrawn - After Issue CN210164436U (en) | 2019-06-20 | 2019-06-20 | Novel mechanical rotary reaming device |
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| Country | Link |
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| CN (1) | CN210164436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094167A (en) * | 2019-06-20 | 2019-08-06 | 吕梁学院 | A kind of novel mechanical rotation Counterboring apparatus |
-
2019
- 2019-06-20 CN CN201920933564.9U patent/CN210164436U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094167A (en) * | 2019-06-20 | 2019-08-06 | 吕梁学院 | A kind of novel mechanical rotation Counterboring apparatus |
| CN110094167B (en) * | 2019-06-20 | 2024-02-09 | 吕梁学院 | Novel mechanical rotary reaming device |
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