CN219241839U - Enlarged end anchoring type anchor rod drill bit - Google Patents
Enlarged end anchoring type anchor rod drill bit Download PDFInfo
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- CN219241839U CN219241839U CN202223234848.XU CN202223234848U CN219241839U CN 219241839 U CN219241839 U CN 219241839U CN 202223234848 U CN202223234848 U CN 202223234848U CN 219241839 U CN219241839 U CN 219241839U
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- 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
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Abstract
The utility model discloses an enlarged end anchoring type anchor rod drill bit, which relates to the technical field of enlarged end anchoring type anchor rod drill bits and comprises a square steel pipe I and a reaming unit; the lower end of the outer side of the square steel pipe I is welded with a round steel plate I, the lower side of the inner side of the square steel pipe I is connected with a square steel pipe II in a sliding manner along the up-down direction, and the lower end of the outer side of the square steel pipe II is welded with a round steel plate II; the reaming unit comprises square steel plates, steel plate blades, first bolts and high-hardness alloy steel plate drilling teeth, sixteen square steel plates are arranged, two square steel plates are arranged as a pair, the steel plate blades forming a calabash-shaped structure are driven to rotate through rotation of the first square steel pipes, then the high-hardness alloy steel plate drilling teeth on the outer sides of the steel plate blades are driven to rotate, reaming of the inner ends of the inner sides of the drilling holes is achieved through rotation of the high-hardness alloy steel plate drilling teeth, then an anchor rod with an enlarged end is formed after concrete is injected through pressing, and further clamping of the anchor rod is achieved through better rock mass.
Description
Technical Field
The utility model relates to the technical field of enlarged end anchored type anchor rod drill bits, in particular to an enlarged end anchored type anchor rod drill bit.
Background
In various foundation construction projects, anchor rods are often adopted to reinforce rock bodies, counter force for counteracting overturning is applied to overhanging members in overhanging supporting structures, anti-floating counter force is applied to structures such as basements and the like, and the counter force is applied mainly by virtue of friction force generated by stabilizing rock bodies on anchor rod bond wrapping and gravity in the vertical direction;
because the conventional anchor rod is arranged in the rock mass in a cylindrical shape with the same diameter, the rock mass cannot clamp the anchor rod under the action of the pulling resistance to apply counter force, and the clamping action on the anchor rod cannot be well realized through the rock mass, therefore, the anchor rod drill bit with the expanded end part is provided.
Disclosure of Invention
The utility model aims to overcome the existing defects, and provides an expanded end anchoring type anchor rod drill bit, wherein a steel plate blade forming a calabash-shaped structure is driven to rotate by the rotation of a square steel pipe I, so that high-hardness alloy steel plate drilling teeth on the outer side of the steel plate blade are driven to rotate, the reaming effect on the inner end of the inner side of a drilled hole is realized by the rotation of the high-hardness alloy steel plate drilling teeth, then an anchoring anchor rod with an expanded end is formed after concrete is injected by pressing, further the clamping effect on the anchor rod is better realized by a rock body, and the problems in the background art can be effectively solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an enlarged end anchored type anchor rod drill bit comprises a square steel pipe I and a reaming unit;
square steel pipe one: the lower end of the outer side is welded with a round steel plate I, the lower side of the inner part of the square steel tube I is connected with a square steel tube II in a sliding manner along the up-down direction, and the lower end of the outer side of the square steel tube II is welded with a round steel plate II;
reaming unit: the steel plate drilling machine comprises square steel plates, steel plate blades, bolts I and high-hardness alloy steel plate drilling teeth, wherein sixteen square steel plates are arranged, two square steel plates are arranged in a pair, four pairs of square steel plates are uniformly arranged on the outer side of the lower end of a round steel plate I along the circumferential direction, four pairs of square steel plates are uniformly arranged on the outer side of the upper end of a round steel plate II along the circumferential direction, eight steel plate blades are arranged on the steel plate blades, twelve bolts I are arranged, the upper ends of the four steel plate blades are respectively movably connected with the inner sides of the four pairs of upper end square steel plates through one bolt I, the lower ends of the four steel plate blades are respectively movably connected with the inner sides of the four pairs of lower end square steel plates through one bolt I, the connecting total length of the two steel plate blades corresponding up and down in each pair is smaller than the length of a square steel tube II, and the outer sides of each steel plate blade are respectively uniformly provided with at least three high-hardness alloy steel plate drilling teeth along the up and down directions.
The supporting function to round steel plate one is realized through square steel pipe one to realize the supporting function to four pairs of square steel plates that round steel plate one lower extreme outside set up, under the inside downside of square steel pipe one along the effect of upper and lower direction sliding connection has square steel pipe two, can make the regulation effect of realizing the distance between round steel plate one's lower extreme and round steel plate two's the upper end, make the swing joint between the inboard of four pairs of steel plates of upper end four steel plate blade and corresponding through four bolt one, make swing joint between the inboard of four steel plate blade of lower extreme and corresponding four pairs of steel plate through four bolt one, then make swing joint between the inboard of two steel plate blade of each pair of corresponding respectively from top to bottom through four bolt one, put into the inside back of drilling with the whole reaming device of rig, press the rig to the inboard of drilling through external force, under the blocking effect of the inboard inner of drilling, make round steel plate two be close to round steel plate one under the effect of square steel pipe two, and then make the inner of each pair of corresponding upper and lower steel plate blade one form swing joint under the inboard of bending action, the steel plate anchor rod one, the tip is formed to the steel plate is rotated through the steel plate, the outside of the high-hardness of the steel plate, and then realize the tip is rotated through the anchor rod, the steel plate is rotated to the anchor, the outside is realized, the tip is rotated through the steel plate, the high-boring hardness, and the steel plate hole is rotated, and the hole steel plate hole hardness is further is formed.
Further, the reaming unit further comprises a round steel plate III, the round steel plate III is welded at the middle part of the outer side of the square steel tube II, and the outer side of the round steel plate III is connected with the inner side of the corresponding steel plate blade in a matched mode.
The steel plate blade is limited to bend inwards through the round steel plate II, and further the reaming is better guaranteed.
Further, the blocking unit comprises a lower bowl-shaped square steel column, an upper semicircular round steel column and a round steel plate IV, the lower bowl-shaped square steel column is welded at the upper end of the inner side of the square steel tube II, a round hole is formed in the middle of the round steel plate II, the upper semicircular round steel column is connected with the inner side of the round hole in a rotating mode, the outer side of the upper end of the upper semicircular round steel column is connected with the inner side of the lower end of the lower bowl-shaped square steel column in a rotating mode, the round steel plate IV is welded at the lower end of the upper semicircular round steel column, and the outer lower end of the round steel plate IV is connected with the inner side of a drilled hole in a matching mode.
The drill bit is prevented from further drilling depth by the round steel plate four, counterforce is provided for drill bit expansion, and rotation resistance is reduced under the cooperation effect between the inner side of the lower end of the lower bowl-shaped square steel column and the outer side of the upper end of the upper semicircular round steel column.
Further, the blocking unit further comprises a round steel plate five, the round steel plate five is welded at the lower end of the outer side of the upper semicircular round steel column, and the lower end of the outer side of the round steel plate five is rotationally connected with the upper side of a round steel plate two welded at the lower end of the square steel tube two.
The semicircular steel column at the upper end is firmly connected to the inner side of the square steel pipe II through the circular steel plate V, so that the phenomenon that the semicircular steel column at the upper end falls off when the drilling machine is lifted is prevented.
Further, the drilling machine comprises a hole drilling machine drill rod and a bolt II, wherein the upper end of the inner side of the square steel tube I is connected with the lower end of the outer side of the hole drilling machine drill rod in a matched mode, and the upper end of the square steel tube I is fixedly connected with the lower end of the hole drilling machine drill rod through the bolt II.
The lower end of the drill rod of the hole forming drill is firmly connected with the upper end of the inner side of the square steel pipe I through the bolt II, and the hole forming drill is convenient to detach.
Compared with the prior art, the utility model has the beneficial effects that: the enlarged end anchored rock bolt drill bit has the following advantages:
1. the blocking unit is arranged on the anchor rod drill bit with the expanded end, the drill bit is prevented from further drilling through the round steel plate IV, counterforces are provided for drill bit expansion, and the rotation resistance is reduced under the cooperation effect between the inner side of the lower end of the bowl-shaped square steel column at the lower end and the outer side of the upper end of the semicircular round steel column at the upper end;
2. the enlarged end anchoring type anchor rod drill bit is provided with a reaming unit, after the whole reaming device of a drilling machine is placed in a drilled hole, the drilling machine is pressed towards the inner side of the drilled hole through external force, so that the inner ends of each pair of two steel plate blades corresponding to each other up and down are outwards bent under the action of a first bolt to form a gourd-shaped reaming structure, and the external drilling machine drives a square steel pipe I to rotate;
3. the steel plate blade forming the calabash-shaped structure is driven to rotate through the rotation of the square steel pipe I, then the high-hardness alloy steel plate drill tooth outside the steel plate blade is driven to rotate, the reaming effect on the inner end inside a drilled hole is achieved through the rotation of the high-hardness alloy steel plate drill tooth, then an anchoring anchor rod with an enlarged end is formed after concrete is injected through pressing, and further the clamping effect on the anchor rod is achieved through a rock body.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the front side middle section structure of the present utility model;
FIG. 3 is a schematic view of the structure of the present utility model shown in FIG. 2 at a partially enlarged scale;
FIG. 4 is a schematic cross-sectional view of the structure of FIG. 2 at 1-1 in accordance with the present utility model.
In the figure: the steel pipe comprises a first square steel pipe, a second round steel plate, a first 3 square steel pipe, a second 4 round steel plate, a 5 reaming unit, a first 51 square steel plate, a 52 steel plate blade, a first 53 bolt, a first 54 high-hardness alloy steel plate drilling tooth, a third 55 round steel plate, a 6 blocking unit, a lower end bowl-shaped square steel column 61, a semicircular round steel column 62 at the upper end, a fourth 63 round steel plate, a fifth 64 round steel plate, a drill rod of a 7 pore-forming drill and a second 8 bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present embodiment provides a technical solution: an enlarged end anchored type anchor rod drill bit comprises a square steel pipe I1 and a reaming unit 5;
square steel pipe 1: the lower end of the outer side is welded with a round steel plate I2, the lower side of the inner part of the square steel tube I1 is connected with a square steel tube II 3 in a sliding manner along the up-down direction, and the lower end of the outer side of the square steel tube II 3 is welded with a round steel plate II 4;
reaming unit 5: the steel plate drilling device comprises square steel plates 51, steel plate blades 52, bolts one 53 and high-hardness alloy steel plate drilling teeth 54, sixteen square steel plates 51 are arranged, four square steel plates 51 are uniformly arranged on the outer sides of the lower ends of a round steel plate one 2 along the circumferential direction, eight steel plate blades 52 are uniformly arranged on the outer sides of the upper ends of a round steel plate two 4 along the circumferential direction, twelve bolts one 53 are arranged, the upper ends of the four steel plate blades 52 are respectively movably connected with the inner sides of the four upper end square steel plates 51 through bolts one 53, the lower ends of the four steel plate blades 52 are respectively movably connected with the inner sides of the four lower end square steel plates 51 through bolts one 53, the inner sides of the two steel plate blades 52 corresponding to the four pairs respectively are respectively movably connected through bolts one 53, the total length of connection of the two steel plate blades 52 corresponding to the upper and lower sides of each pair is smaller than the length of a square steel tube two 3, and the outer sides of each steel plate blade 52 are respectively uniformly provided with at least three high-hardness alloy steel plate drilling teeth 54 along the upper and lower directions.
The supporting action to round steel plate one 2 is realized through square steel pipe one 1 to realize the supporting action to four pairs of square steel plate 51 that round steel plate one 2 lower extreme outside set up, under the effect that square steel pipe two 3 is had to inside downside along upper and lower direction sliding connection of square steel pipe one 1, can make the regulation effect of realizing the distance between the lower extreme of round steel plate one 2 and the upper end of round steel plate two 4, make the upper end of four steel sheet blades 52 of upper end and the inboard of four pairs of square steel plate 51 of correspondence between swing joint through four bolt one 53, make the lower extreme of four steel sheet blades 52 of lower extreme and the inboard of four pairs of square steel plate 51 of correspondence through four bolt one 53, then make swing joint between the inboard of two steel sheet blades 52 of every pair of correspondence from top to bottom through four bolt one 53, after putting into the inside of drilling with the whole reaming device of rig, through the inboard pressing the rig of drilling, under the effect of the inboard inner end of round steel plate two, make round steel plate two 4 under the effect of square steel pipe two 3 make the upper end four steel sheet blades 52 be close to the inboard 2 respectively, make the tip be close to the steel plate one and make the anchor rod and form the anchor rod to rotate the effect of the steel plate one and then form the anchor rod and turn down, the hole-shaped steel plate is formed by the anchor tooth is turned down, the anchor hole is formed and the anchor is high to the anchor, the hole is formed and the anchor is turned down, and the steel plate is then is turned down, the steel plate is turned and is further to the steel plate is turned and is turned to the steel and is turned to the steel, the steel plate is then 52, the steel and is further has a hole and is a hole.
The reaming unit 5 further comprises a round steel plate III 55, the round steel plate III 55 is welded in the middle of the outer side of the square steel tube II 3, and the outer side of the round steel plate III 55 is connected with the inner side of the corresponding steel plate blade 52 in a matched mode.
The steel plate blades 52 are limited to bend inwards through the round steel plates II 4, and further the reaming is better guaranteed.
The blocking unit 6 comprises a lower bowl-shaped square steel column 61, an upper semicircular round steel column 62 and a round steel plate IV 63, wherein the lower bowl-shaped square steel column 61 is welded at the upper end of the inner side of the square steel tube II 3, a round hole is formed in the middle of the round steel plate II 4, the upper semicircular round steel column 62 is rotatably connected to the inner side of the round hole, the outer side of the upper end of the upper semicircular round steel column 62 is rotatably connected with the inner side of the lower end of the lower bowl-shaped square steel column 61, the round steel plate IV 63 is welded at the lower end of the upper semicircular round steel column 62, and the outer lower end of the round steel plate IV 63 is matched and connected with the inner side of a drilled hole.
The drill bit is prevented from further drilling by the round steel plate IV 63, a counterforce is provided for expanding the drill bit, and the rotation resistance is reduced under the cooperation between the inner side of the lower end of the lower bowl-shaped square steel column 61 and the outer side of the upper end of the upper semicircular steel column 62.
The blocking unit 6 further comprises a round steel plate five 64, the round steel plate five 64 is welded at the lower end of the outer side of the upper semicircular round steel column 62, and the lower end of the outer side of the round steel plate five 64 is rotationally connected with the upper side of the round steel plate two 4 welded at the lower end of the square steel tube two 3.
The upper semicircular steel column 62 is firmly connected to the inner side of the square steel pipe II 3 through the round steel plate V64, so that the phenomenon that the upper semicircular steel column 62 falls off when the drilling machine is lifted is prevented.
The drilling machine further comprises a hole drilling machine drill rod 7 and a bolt II 8, wherein the upper end of the inner side of the square steel tube I1 is connected with the lower end of the outer side of the hole drilling machine drill rod 7 in a matched mode, and the upper end of the square steel tube I1 is fixedly connected with the lower end of the hole drilling machine drill rod 7 through the bolt II 8.
The lower end of the drilling rod 7 of the hole-forming drilling machine and the upper end of the inner side of the square steel pipe I1 are firmly connected and conveniently detached through the bolt II 8.
The working principle of the enlarged end anchoring type anchor rod drill bit provided by the utility model is as follows:
after the whole reaming device of the drilling machine is placed into a drilled hole, the drilling machine is pressed to the inner side of the drilled hole through external force, under the blocking action of the inner end of the inner side of the drilled hole, the round steel plate II 4 is made to approach the round steel plate I2 under the action of the square steel pipe II 3, the inner ends of two steel plate blades 52 corresponding to each pair of steel plate blades in the up-down mode are outwards bent under the action of a bolt I53 to form a calabash-shaped reaming structure, the square steel pipe I1 is driven to rotate through the external drilling machine, the steel plate blades 52 forming the calabash-shaped structure are driven to rotate through the rotation of the square steel pipe I1, the high-hardness alloy steel plate drilling teeth 54 on the outer side of the steel plate blades 52 are driven to rotate, the reaming action on the inner end of the inner side of the drilled hole is achieved through the rotation of the high-hardness alloy steel plate drilling teeth 54, then an anchor rod with an enlarged end is formed after concrete is injected through pressing, and the anchor rod is better achieved through a rock body.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (5)
1. An enlarged end anchored rock bolt drill bit, characterized by: comprises a square steel pipe I (1), a blocking unit (6) and a reaming unit (5);
square steel pipe one (1): the lower end of the outer side is welded with a round steel plate I (2), the lower side of the inner part of the square steel tube I (1) is connected with a square steel tube II (3) in a sliding manner along the up-down direction, and the lower end of the outer side of the square steel tube II (3) is welded with a round steel plate II (4);
reaming unit (5): the steel plate drilling device comprises square steel plates (51), steel plate blades (52), bolts I (53) and high-hardness alloy steel plate drilling teeth (54), sixteen square steel plates (51) are arranged, two square steel plates (51) are arranged in a pair, four pairs of square steel plates (51) are uniformly arranged on the outer sides of the lower ends of round steel plates I (2) along the circumferential direction, four pairs of square steel plates (51) are uniformly arranged on the outer sides of the upper ends of round steel plates II (4) along the circumferential direction, eight steel plate blades (52) are arranged, twelve bolts I (53) are arranged, wherein the upper ends of four steel plate blades (52) are respectively movably connected with the inner sides of the four pairs of square steel plates (51) through bolts I (53), the lower ends of the other four steel plate blades (52) are respectively movably connected with the inner sides of the four pairs of square steel plates (51) along the circumferential direction, the length of each pair of upper and lower steel plates II of steel plates is not smaller than that of steel plates (52) is uniformly arranged on the outer sides of the three steel plates (52) along the length of each pair of steel plates I (53).
2. An enlarged end anchored rock drill bit as claimed in claim 1, wherein: the reaming unit (5) further comprises a round steel plate III (55), the round steel plate III (55) is welded in the middle of the outer side of the square steel tube II (3), and the outer side of the round steel plate III (55) is connected with the inner side of the corresponding steel plate blade (52) in a matched mode.
3. An enlarged end anchored rock drill bit as claimed in claim 1, wherein: the blocking unit (6) comprises a lower-end bowl-shaped square steel column (61), an upper-end semicircular round steel column (62) and a round steel plate IV (63), the lower-end bowl-shaped square steel column (61) is welded at the upper end of the inner side of the square steel tube II (3), a round hole is formed in the middle of the round steel plate II (4), the upper-end semicircular round steel column (62) is rotatably connected to the inner side of the round hole, the outer side of the upper-end semicircular round steel column (62) is rotatably connected with the inner side of the lower end of the lower-end bowl-shaped square steel column (61), the round steel plate IV (63) is welded at the lower end of the upper-end semicircular round steel column (62), and the outer lower end of the round steel plate IV (63) is cooperatively connected with the inner side of a drill hole.
4. An enlarged end anchored rock bolt bit according to claim 3, wherein: the blocking unit (6) further comprises a round steel plate five (64), the round steel plate five (64) is welded at the lower end of the outer side of the upper semicircular round steel column (62), and the lower end of the outer side of the round steel plate five (64) is rotationally connected with the upper side of a round steel plate two (4) welded at the lower end of the square steel tube two (3).
5. An enlarged end anchored rock drill bit as claimed in claim 1, wherein: the drilling machine is characterized by further comprising a hole-forming drilling machine drill rod (7) and a bolt II (8), wherein the upper end of the inner side of the square steel tube I (1) is connected with the lower end of the outer side of the hole-forming drilling machine drill rod (7) in a matched mode, and the upper end of the square steel tube I (1) is fixedly connected with the lower end of the hole-forming drilling machine drill rod (7) through the bolt II (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223234848.XU CN219241839U (en) | 2022-12-05 | 2022-12-05 | Enlarged end anchoring type anchor rod drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223234848.XU CN219241839U (en) | 2022-12-05 | 2022-12-05 | Enlarged end anchoring type anchor rod drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN219241839U true CN219241839U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202223234848.XU Active CN219241839U (en) | 2022-12-05 | 2022-12-05 | Enlarged end anchoring type anchor rod drill bit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107344A (en) * | 2019-06-12 | 2019-08-09 | 河南城建学院 | The electrodeless expanding type gas drainage hole drilling of one kind makes cave device and method |
-
2022
- 2022-12-05 CN CN202223234848.XU patent/CN219241839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107344A (en) * | 2019-06-12 | 2019-08-09 | 河南城建学院 | The electrodeless expanding type gas drainage hole drilling of one kind makes cave device and method |
| CN110107344B (en) * | 2019-06-12 | 2024-04-05 | 河南城建学院 | Electrodeless expanding type gas extraction hole drilling and hole making device and method |
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