CN218816246U - Soft rock cutting steel tooth hob - Google Patents
Soft rock cutting steel tooth hob Download PDFInfo
- Publication number
- CN218816246U CN218816246U CN202223407200.8U CN202223407200U CN218816246U CN 218816246 U CN218816246 U CN 218816246U CN 202223407200 U CN202223407200 U CN 202223407200U CN 218816246 U CN218816246 U CN 218816246U
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- tooth
- teeth
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- rows
- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 47
- 239000010959 steel Substances 0.000 title claims abstract description 47
- 239000011435 rock Substances 0.000 title claims abstract description 33
- 238000005520 cutting process Methods 0.000 title claims abstract description 20
- 239000002893 slag Substances 0.000 claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 229910001339 C alloy Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract description 10
- 239000013049 sediment Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 208000035874 Excoriation Diseases 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Earth Drilling (AREA)
Abstract
The utility model relates to a soft rock cutting steel tooth hobbing cutter, the periphery of the roller body is provided with at least two rows of tooth rows, the steel tooth on each row of tooth row is in inclined arrangement, half teeth are distributed on at least one tooth row, the teeth between the tooth row and the tooth row are in staggered distribution, the upper half teeth and the full teeth of the tooth row are alternately arranged; the tooth rows are arranged in a staggered and penetrating manner to form a self-cleaning structure, and tooth sockets among the tooth bodies in the same row, spacing grooves among the tooth rows and half-tooth reserved spaces form directional S-shaped guiding slag discharge flow passages together. The steel tooth rows are distributed in a staggered mode, half teeth and full teeth are alternately arranged, rock breaking tracks of tooth bodies are prevented from being overlapped, repeated breaking is carried out at the bottom of a well, full coverage of the bottom of the well is achieved, and the hob is guaranteed to have high mechanical drilling speed and efficiency; each groove and half tooth form the rounding off sediment runner jointly, and when the raise boring, along with the drive of drilling rod, mud, the mud bud attached to the wheel body flow fast through the effect of centrifugal force, arrange sediment runner and discharge fast through complete direction, have improved row's sediment efficiency.
Description
Technical Field
The utility model relates to a soft rock cutting steel tooth hobbing cutter belongs to anti-well hobbing cutter technical field.
Background
The raise boring machine as one important construction apparatus for ore bin, ventilating hole, pressure pipeline of hydroelectric system, cable equipment well, etc. is used widely in coal mine, metal mine, water conservancy and hydroelectric engineering, and has motor to drive hydraulic motor to drive water tap, hydraulic power to transfer torque to the drilling tool system to drive the drill rod and bit to rotate, and the hob on the guide hole bit or expanding bit to roll or slide slightly along the rock surface of well bottom under the action of drilling pressure. Meanwhile, axial pulling and pressure generated by the oil cylinder of the main engine also act on the pilot hole drill bit or the expanding drill bit through the power head and the drill rod, so that a hob of the pilot hole drill bit rolls under the action of drilling pressure to generate impact load, and hob teeth generate impact, extrusion and shearing actions on rocks to crush the rocks. The raise shaft hob is used as an important rock breaking cutter for mechanical excavation, and how to improve the rock breaking efficiency of the raise shaft hob, especially the rock breaking efficiency of the soft rock stratum hob, is important for improving the construction cost of mine equipment and hydropower stations and shortening the construction period.
To the soft rock stratum of raise boring technology, along with the increase of pore-forming diameter, broken stratum volume increases, deposits at the hole bottom, very easily forms the mud package, consequently how to improve cutting efficiency and arrange the sediment fast and become especially important, each steel tooth producer at present adopts integral type cloth tooth structure with steel tooth cloth tooth for processing convenience, promptly: all the tooth rows are distributed in the same direction side by side, all the tooth rows are seriously overlapped, the steel tooth bodies are repeatedly crushed at the bottom of a well, the efficiency is extremely low, meanwhile, the guide slag discharge is not facilitated, mud buds are attached to the surfaces of the wheel bodies and the tooth bodies for a long time, and the early-stage tooth bodies are easily worn and lose efficacy, so that the rock breaking efficiency is improved, and the guide slag discharge is facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide a soft rock cutting steel tooth hobbing cutter.
The purpose of the utility model is realized through the following technical scheme:
the soft rock cutting steel tooth hob is characterized in that: the roller comprises a roller body and a mandrel connected with the roller body into a whole, wherein at least two rows of teeth are arranged on the periphery of the roller body, steel teeth on each row of teeth are obliquely arranged, half teeth are distributed on at least one row of teeth, the teeth between the rows of teeth and the rows of teeth are distributed in a staggered manner, and the half teeth and the full teeth on the rows of teeth are alternately arranged; the teeth among the tooth rows are distributed in a staggered way; the tooth rows are arranged in a staggered and penetrating manner to form a self-cleaning structure, and tooth sockets among the tooth bodies in the same row, spacing grooves among the tooth rows and half-tooth reserved spaces form directional S-shaped guiding slag discharge flow passages together.
Furthermore, the soft rock cutting steel tooth hob is characterized in that 1 or more open U-shaped grooves are formed in the teeth of the tooth row.
Furthermore, in the above soft rock cutting steel tooth hob, the teeth of the tooth row are oblique steel teeth, and the inclination angle is 10-45 °.
Further, according to the soft rock cutting steel tooth hob, the U-shaped groove is provided with the wear-resistant welding layer, and the wear-resistant welding layer is a full-wrapping wear-resistant welding layer or a half-wrapping wear-resistant welding layer.
Further, in the above-mentioned soft rock cutting steel tooth hob, the surface of the steel tooth is provided with a wear-resistant layer, and the wear-resistant layer is a full-coating wear-resistant layer or a half-coating wear-resistant layer.
Further, in the soft rock cutting steel tooth hob, the distance delta L between the guiding slag discharge runners of adjacent tooth rows is 15-30 mm.
Furthermore, the roller body of the soft rock cutting steel tooth hob is made of low-carbon alloy steel 15MnNi4Mo, 15CrNiMo, 42CrMo or 20CrNiMo.
Compared with the prior art, the utility model have apparent advantage and beneficial effect, the concrete aspect that embodies is in following:
(1) the utility model discloses cloth tooth structural design is novel, and each steel tooth row staggered arrangement, half tooth and full tooth alternate arrangement avoid the tooth body broken rock orbit to overlap, at the repeated breakage of shaft bottom, the higher exposure height of steel tooth has not only realized the shaft bottom total coverage, can guarantee simultaneously that the hobbing cutter has higher mechanical drilling speed, has improved drilling efficiency;
(2) the tooth rows are arranged in a staggered and penetrating manner to form a self-cleaning structure, tooth grooves among the tooth bodies in the same row, spacing grooves among the tooth rows and half-tooth reserved spaces jointly form an S-shaped guiding deslagging runner with directionality, and when a reverse well drills, slurry and mud buds attached to the wheel body rapidly flow under the action of centrifugal force along with the driving of a drill rod and are finally discharged rapidly through the complete guiding deslagging runner, so that the deslagging efficiency is effectively improved, and meanwhile, the abrasion of the slurry and the mud buds to the tooth bodies is avoided;
(3) the problems that the reverse well steel tooth hob is low in rock breaking efficiency and not beneficial to guiding and deslagging, early abrasion failure of a wheel body and a gear ring is easily caused, the service life of the hob is prolonged, the construction period is shortened, and the production cost is effectively reduced are solved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
FIG. 1: the structure of the utility model is shown schematically;
FIG. 2: the structure schematic diagram of the guiding slag-discharging flow channel;
FIG. 3: schematic diagram of the angle of inclination of the oblique steel teeth;
FIG. 4: a structural schematic diagram of a full tooth;
FIG. 5: the structure of the half-tooth is shown schematically.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the directional terms and the sequence terms and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, the soft rock cutting steel tooth hob comprises a hob body 2 and a mandrel 1 connected with the hob body into a whole, wherein three rows of tooth rows are arranged on the periphery of the hob body 2, the tooth row on the outermost side of the big end is an outer row of tooth row 3, the tooth row on the innermost side is a top row of tooth row 5, the middle is an inner row of tooth row 4, the steel teeth on each row of tooth row are obliquely arranged, the teeth are oblique steel teeth, the oblique angle is 10-45 degrees, the teeth between the tooth rows are distributed in a staggered manner, and half teeth and full teeth are alternately arranged; half teeth 7 are distributed on at least one tooth row, for example, both the half teeth 7 and the full teeth 8 are arranged on the outer tooth row 3, and the surface of each tooth is provided with a wear-resistant coating layer which is a full-coating wear-resistant coating layer or a half-coating wear-resistant coating layer; the tooth rows are arranged in a staggered and penetrating mode to form a self-cleaning structure, tooth grooves among the tooth bodies in the same row, spacing grooves among the tooth rows and half-tooth reserved spaces form S-shaped guiding slag discharge runners 9 with directionality, the spacing delta L of the guiding slag discharge runners of adjacent tooth rows is 15-30 mm, the guiding slag discharge runners 9 have directionality, and the tooth rows are arranged in a staggered mode and the half-teeth with directionality and shaved off form smooth runners for guiding slag discharge.
The whole teeth 8 of the tooth row are provided with 1 or more open U-shaped grooves 6, as shown in figure 4; 1 or more open U-shaped grooves 6 are also formed on the half teeth 7, as shown in FIG. 5; and a wear-resistant welding layer is arranged on the U-shaped groove 6, and is a full-wrapped wear-resistant welding layer or a half-wrapped wear-resistant welding layer.
The material of the roller body 2 is low-carbon alloy steel 15MnNi4Mo, 15CrNiMo, 42CrMo or 20CrNiMo.
The steel teeth are in a bevel steel tooth structure form, and the bevel steel teeth and the axis of the cone form inclination angles of alpha, beta and gamma according to the raise boring directionality (clockwise rotation of a drilling machine), as shown in fig. 3, the included angle alpha between each tooth row of the bevel steel teeth and the central axis of the roller parent body is 20 degrees, beta is 20 degrees, and gamma is 20 degrees.
The steel teeth are distributed in a staggered mode, half teeth and full teeth are alternately arranged, the rock breaking tracks of tooth bodies are prevented from being overlapped, the tooth bodies are repeatedly broken at the shaft bottom, the steel teeth are high in exposure height, the shaft bottom full coverage is achieved, meanwhile, the hob is guaranteed to have high mechanical drilling speed, and the drilling efficiency is improved.
The guide slag discharging flow channel is arranged between each steel tooth row, each groove and the shaved half tooth form a smooth flow channel together, when the reverse well is drilled, slurry and mud buds attached to the wheel body flow rapidly under the action of centrifugal force along with the driving of a drill rod, and finally the slurry and mud buds are discharged rapidly through the complete guide slag discharging flow channel, so that the slag discharging efficiency is effectively improved, meanwhile, the abrasion of the slurry and mud buds to the tooth body is avoided, the service life of the hob is prolonged, the construction period is shortened, the production cost is effectively reduced, and the hob has an ideal actual use effect.
To sum up, the utility model discloses cloth tooth structural design is novel, has solved anti-well steel tooth hobbing cutter broken rock inefficiency, is unfavorable for the direction to arrange the sediment and easily leads to wheel body and ring gear early wear inefficacy scheduling problem.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
Claims (6)
1. Soft rock cutting steel tooth hobbing cutter, its characterized in that: the roller comprises a roller body (2) and a mandrel (1) connected with the roller body into a whole, wherein at least two rows of tooth rows are arranged on the periphery of the roller body (2), steel teeth on each row of tooth rows are obliquely arranged, half teeth (7) are distributed on at least one tooth row, the teeth between the tooth rows are distributed in a staggered manner, and the upper half teeth and the full teeth of the tooth rows are alternately arranged; the teeth of the tooth row are provided with 1 or more open U-shaped grooves (6); the tooth rows are arranged in a staggered and penetrating way to form a self-cleaning structure, and tooth sockets among the tooth bodies in the same row, spacing grooves among the tooth rows and half-tooth reserved spaces jointly form an S-shaped guiding slag discharge flow passage (9) with directionality.
2. The soft rock cutting steel tooth hob according to claim 1, characterized in that: the teeth of the tooth row are oblique steel teeth, and the inclination angle is 10-45 degrees.
3. The soft rock cutting steel tooth hob according to claim 1, characterized in that: the U-shaped groove (6) is provided with a wear-resistant welding layer which is a full-wrapping wear-resistant welding layer or a half-wrapping wear-resistant welding layer.
4. The soft rock cutting steel tooth hob according to claim 1, characterized in that: the surface of the steel tooth is provided with a wear-resistant welding layer which is a full-coating wear-resistant welding layer or a half-coating wear-resistant welding layer.
5. The soft rock cutting steel tooth hob according to claim 1, characterized in that: the distance delta L between the guiding slag discharge runners of the adjacent tooth rows is 15-30 mm.
6. The soft rock cutting steel tooth hob according to claim 1, characterized in that: the material of the roller body (2) is low-carbon alloy steel 15MnNi4Mo, 15CrNiMo, 42CrMo or 20CrNiMo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223407200.8U CN218816246U (en) | 2022-12-16 | 2022-12-16 | Soft rock cutting steel tooth hob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223407200.8U CN218816246U (en) | 2022-12-16 | 2022-12-16 | Soft rock cutting steel tooth hob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218816246U true CN218816246U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223407200.8U Active CN218816246U (en) | 2022-12-16 | 2022-12-16 | Soft rock cutting steel tooth hob |
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| CN (1) | CN218816246U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977545A (en) * | 2022-12-16 | 2023-04-18 | 苏州新锐合金工具股份有限公司 | Soft rock cutting steel tooth hob |
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2022
- 2022-12-16 CN CN202223407200.8U patent/CN218816246U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115977545A (en) * | 2022-12-16 | 2023-04-18 | 苏州新锐合金工具股份有限公司 | Soft rock cutting steel tooth hob |
| CN115977545B (en) * | 2022-12-16 | 2025-07-25 | 苏州新锐合金工具股份有限公司 | Soft rock cutting steel tooth hob |
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