CN114799993B - Main shaft subsection secondary feeding mechanism of tapping machine - Google Patents
Main shaft subsection secondary feeding mechanism of tapping machine Download PDFInfo
- Publication number
- CN114799993B CN114799993B CN202210643914.4A CN202210643914A CN114799993B CN 114799993 B CN114799993 B CN 114799993B CN 202210643914 A CN202210643914 A CN 202210643914A CN 114799993 B CN114799993 B CN 114799993B
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- driving
- main shaft
- primary feeding
- feeding
- primary
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/32—Feeding working-spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/013—Control or regulation of feed movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a main shaft subsection secondary feeding mechanism of a tapping machine, which comprises a main shaft driving mechanism, a secondary feeding external screw mandrel sleeve, a hollow main shaft, a primary feeding internal screw tube and a primary feeding driving mechanism, wherein the secondary feeding external screw mandrel sleeve is assembled at a shaft hole at the upper end of the main shaft driving mechanism, a hollow driving shaft is arranged in the main shaft driving mechanism, the upper end of the driving shaft coaxially stretches into the secondary feeding external screw mandrel sleeve, the main shaft coaxially penetrates through the driving shaft, the primary feeding internal screw tube is coaxially arranged with the driving shaft, the primary feeding driving mechanism is connected with the upper end of the primary feeding internal screw tube, the upper end of the main shaft stretches into the primary feeding internal screw tube and is rotationally connected with the primary feeding internal screw tube, a key groove is axially arranged on the inner wall of the upper end of the driving shaft, a key block matched with the key groove is axially arranged on the main shaft, and the primary feeding driving mechanism is used for driving the primary feeding internal screw tube to move up and down and rotate. The advantages are that: the cutting feed speed and the feed amount of the barrel knife can be effectively controlled.
Description
Technical Field
The invention relates to the field of tapping machine equipment, in particular to a main shaft subsection secondary feeding mechanism of a tapping machine, which is suitable for normal maintenance and reconstruction of various medium pipelines such as crude oil, finished oil, chemical media, natural gas and the like and emergency repair (such as pressurized emergency repair, replacement of corroded pipe sections, additional installation of devices, separate transmission reconstruction and the like) of sudden accidents.
Background
The tapping machine is widely used abroad at present, is a safe, environment-friendly, economical and efficient in-service pipeline maintenance and repair technology, is suitable for normal maintenance and repair of various medium pipelines such as crude oil, finished oil, chemical media, natural gas and the like and emergency repair (such as operations of pressurized rush repair, replacement of corroded pipe sections, additional installation devices, split transportation reconstruction and the like), and is generally of a primary feeding structure, and is characterized in that the feeding speed of a drill bit is generally high, the feeding amount is high, the feeding speed and the feeding amount are difficult to control and adjust, and accidents such as damage to a barrel cutter, cutter punching, cutter clamping, main shaft deflection, main shaft damage and the like are easy to occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing a main shaft subsection secondary feeding mechanism of a tapping machine, which effectively overcomes the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
the utility model provides a tapping machine main shaft segmentation second grade feed mechanism, including main shaft actuating mechanism, the second grade feeds the external screw thread lead screw sleeve, hollow main shaft, the one-level feeds the internal screw thread pipe, one-level feeds actuating mechanism, the vertical assembly of above-mentioned second grade feeds the external screw thread lead screw sleeve in the shaft hole department of main shaft actuating mechanism upper end, be equipped with hollow drive shaft in the above-mentioned main shaft actuating mechanism, the coaxial in-line of above-mentioned drive shaft upper end stretches into the two-level feeds the external screw thread lead screw sleeve, the coaxial drive shaft that passes of above-mentioned main shaft, the coaxial setting of above-mentioned one-level feeds the internal screw thread pipe and the above-mentioned drive shaft, the upper end of above-mentioned one-level feeds actuating mechanism and is connected with the upper end of one-level feeding the internal screw thread pipe, the upper end of above-mentioned main shaft stretches into the internal screw thread pipe inside, and with the inside swivelling connection of above-mentioned one-level feeding internal screw thread pipe, the upper end inner wall along the axial is equipped with the keyway, the above-mentioned main shaft is last along the axial be equipped with the key piece that is matchd with above-mentioned keyway, the above-mentioned one-level feeds the internal screw thread pipe and rotates about, and drive one-level feeding actuating mechanism is used for driving the above-level feeding the internal screw thread pipe and drives one-level and precess to rotate, above-level feeding internal screw thread pipe and drive spindle and above-level feeding external screw thread to rotate to drive the external screw thread piece and vice thread piece and above-level screw thread outside or vice thread spindle and vice thread, and thread spindle.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the spindle drive mechanism further comprises a protective sleeve, wherein the protective sleeve is vertically assembled at the upper end of the spindle drive mechanism and sleeved outside the secondary feeding external thread screw rod sleeve.
Further, the upper end of the main shaft is rotatably connected with the primary feeding internal thread pipe through a bearing.
Further, the device further comprises a mounting frame, wherein the mounting frame is assembled at the upper end of the main shaft driving mechanism, and the primary feeding driving mechanism is assembled at the upper end of the mounting frame.
Further, the primary feeding driving mechanism comprises a screw rod and a driving seat, wherein the screw rod is vertically fixed at the upper end of the mounting frame, the lower end of the screw rod coaxially stretches into the main shaft, a screw hole matched with the screw rod is formed in the middle of the driving seat, and the driving seat is screwed on the screw rod and is fixedly connected with the upper end of the primary feeding internal thread pipe.
Further, a driving device for driving the driving seat to rotate is arranged at the upper end of the driving seat.
Further, the driving device is a hand wheel.
Further, the mounting frame comprises a mounting plate and a plurality of support rods, wherein the mounting plate is horizontally arranged above the spindle driving mechanism, the support rods are vertically arranged and uniformly spaced around the primary feeding internal thread pipe, the upper ends of the support rods are fixedly connected with the lower ends of the mounting plate, and the lower ends of the support rods are fixedly connected with the upper ends of the spindle driving mechanism.
Further, the outer surface of the primary feeding internally threaded pipe is provided with a positioning structure for indicating the screwing depth of the primary feeding internally threaded pipe.
Further, the positioning structure is a sleeve sleeved and fixed outside the primary feeding internal thread pipe.
The beneficial effects of the invention are as follows: the barrel knife of the tapping machine is fed in a grading manner through the two-stage feeding structure, so that the cutting feeding speed and feeding quantity of the barrel knife can be effectively controlled, and phenomena such as damage to the barrel knife, knife punching, knife clamping, main shaft deviation, main shaft damage and the like can be avoided, and accidents are reduced.
Drawings
Fig. 1 is a structural cross-sectional view of a spindle segment secondary feed mechanism of a tapping machine of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a spindle drive mechanism; 2. a secondary feed external thread screw sleeve; 3. a main shaft; 4. a first stage feeding internal thread pipe; 5. a primary feed drive mechanism; 6. a mounting frame; 11. a drive shaft; 31. a key block; 32. a bearing; 41. a positioning structure; 51. a screw rod; 52. a driving seat; 61. a mounting plate; 62. and (5) supporting the rod.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Examples: as shown in fig. 1, the spindle subsection secondary feeding mechanism of the tapping machine of this embodiment comprises a spindle driving mechanism 1, a secondary feeding external screw mandrel sleeve 2, a hollow spindle 3, a primary feeding internal screw tube 4 and a primary feeding driving mechanism 5, wherein the secondary feeding external screw mandrel sleeve 2 is vertically assembled at the shaft hole of the upper end of the spindle driving mechanism 1, a hollow driving shaft 11 is arranged in the spindle driving mechanism 1, the upper end of the driving shaft 11 coaxially extends into the secondary feeding external screw mandrel sleeve 2, the spindle 3 coaxially penetrates through the driving shaft 11, the primary feeding internal screw tube 4 is coaxially arranged with the driving shaft 11, the primary feeding driving mechanism 5 is connected with the upper end of the primary feeding internal screw tube 4, the upper end of the spindle 3 extends into the primary feeding internal screw tube 4 and is rotationally connected with the inside of the primary feeding internal screw tube 4, a key groove 31 matched with the key groove is axially arranged on the spindle 3 along the axial direction, the primary feeding driving mechanism 5 is used for driving the key groove 5 to be separated from the primary feeding internal screw tube 4 by the key groove and the key groove 3, and simultaneously rotationally drives the primary feeding driving block 31 to be rotationally separated from the spindle 4 to the outer wall of the spindle driving mechanism 1.
In this embodiment, the spindle driving mechanism 1 belongs to a conventional structure of a tapping machine, specifically, the tapping machine comprises a box body and a transmission structure arranged in the box body, the transmission structure comprises a motor, a worm, a turbine and the driving shaft 11, the turbine is coaxially fixed on the driving shaft 11, the worm is meshed with the turbine, the motor drives the worm to rotate, thereby driving the driving shaft 11 to rotate, and the driving shaft 11 drives the spindle 3 and a barrel knife connected with the lower end of the spindle 3 to rotate for tapping, and the specific operation process is as follows:
the primary feeding driving mechanism 5 drives the primary feeding internal thread pipe 4 and the main shaft 3 to move downwards for feeding, in the feeding process, the primary feeding driving mechanism 5 drives the primary feeding internal thread pipe 4 to rotate, as the main shaft 3 is in rotary connection with the primary feeding internal thread pipe 4, the main shaft 3 drives idle strokes of the cylindrical cutter and the like to move downwards (the main shaft 3 does not rotate), until a key block 31 on the main shaft 3 is embedded into a key groove on the inner wall of the upper end of the driving shaft 11, and the primary feeding internal thread pipe 4 is synchronous, and the primary feeding internal thread pipe 4 is screwed downwards to be screwed on the secondary feeding external thread screw sleeve 2, in this state, the main shaft 11 can be driven to rotate in the rotating process of the driving shaft 11 (the key block 31 and the key groove are embedded to enable the key block 31 and the key groove to rotate in a linkage mode), meanwhile, the primary feeding driving mechanism 5 continues to drive the primary feeding internal thread pipe 4 to rotate downwards along the secondary feeding external thread screw sleeve 2, so as to drive the main shaft 3 and a cylindrical cutter and the like at the lower end to rotate downwards for opening.
As a preferred embodiment, the spindle drive further comprises a protective sleeve (denoted by a in the figure), wherein the protective sleeve is vertically assembled at the upper end of the spindle drive mechanism 1 and sleeved outside the secondary feed external screw mandrel sleeve 2.
In the above embodiment, the design of the protective sleeve can protect the secondary feed external screw thread sleeve 2, prevent external dust and the like from contacting and remaining on the surface threads of the secondary feed external screw thread sleeve 2, thereby influencing the precession feeding of the primary feed internal screw thread tube 4, and simultaneously, can also prevent the external misoperation from expanding the secondary feed external screw thread sleeve 2.
As a preferred embodiment, the upper end of the main shaft 3 is rotatably connected to the primary feed female screw 4 through a bearing 32.
In the above embodiment, the main shaft 3 is assembled and connected with the primary feeding internally threaded tube 4 by adopting the bearing 32, and the two can realize relatively stable relative rotation movement.
As a preferred embodiment, the apparatus further comprises a mounting frame 6, wherein the mounting frame 6 is mounted on an upper end of the spindle driving mechanism 1, and the primary feed driving mechanism 5 is mounted on an upper end of the mounting frame 6.
In the above embodiment, the design of the mounting frame 6 facilitates the assembly of the primary feed driving mechanism 5, so that the primary feed driving mechanism 5 and the whole tapping device are designed as a whole, and the structure is more compact, and is easy to operate and transport.
As a preferred embodiment, the primary feed driving mechanism 5 includes a screw rod 51 and a driving seat 52, the screw rod 51 is vertically fixed at the upper end of the mounting frame 6, the lower end of the screw rod 51 coaxially extends into the spindle 3, a screw hole adapted to the screw rod 51 is provided in the middle of the driving seat 52, and the driving seat 52 is screwed on the screw rod 51 and is fixedly connected to the upper end of the primary feed internal thread pipe 4.
In the above embodiment, in the process that the spindle 3 is in primary feeding, the driving seat 52 is screwed downwards relative to the screw rod 51, so as to drive the primary feeding internal thread tube 4 to screw, and two-stage rotation is realized through the cooperation linkage of the screw rod 51 and the secondary feeding external thread screw rod sleeve 2 with the primary feeding internal thread tube 4 respectively, so that the overall structural design is reasonable, the defect that the primary feeding needs longer primary feeding internal thread tube 4 in the traditional design is overcome, and the equipment cost is reduced.
As a preferred embodiment, the upper end of the driving seat 52 is provided with a driving device for driving the driving seat to rotate.
In the above embodiment, the driving seat 52 is provided with the driving means for easily driving it to rotate.
In this embodiment, the driving device may be a conventional hand wheel, and the manual operation drives the primary feeding of the spindle 3.
As a preferred embodiment, the mounting frame 6 includes a mounting plate 61 and a plurality of support rods 62, the mounting plate 61 is horizontally disposed above the spindle driving mechanism 1, the plurality of support rods 62 are vertically disposed and uniformly spaced around the primary feed internally threaded tube 4, the upper ends of the support rods 62 are fixedly connected to the lower ends of the mounting plate 61, and the lower ends thereof are fixedly connected to the upper ends of the spindle driving mechanism 1.
In the above embodiment, the mounting frame 6 adopts a hollow frame structure, wherein a plurality of support rods 62 are connected to the upper end of the spindle driving mechanism 1 to provide support for the mounting plate 61, that is, to provide assembly support for the primary feeding driving mechanism 5, and the structural design is simple and relatively stable.
Generally, a connecting seat is assembled in the middle of the mounting plate 61, and the upper end of the screw 51 is fixed to the connecting seat.
As a preferred embodiment, the outer surface of the primary feed internally threaded tube 4 is provided with a locating structure 41 for indicating the depth of its advancement.
In the above embodiment, the positioning structure 41 is designed to clearly show the screwing amount of the first-stage feeding internal thread tube 4 relative to the second-stage feeding external thread screw sleeve 2 in the second-stage feeding process, and particularly in the case of providing a protective sleeve, the positioning structure 41 can intuitively display the feeding depth condition of the first-stage feeding internal thread tube 4 relative to the protective sleeve, so that the operator can easily grasp the drilling depth of the opening.
As a preferred embodiment, the positioning structure 41 is a sleeve fixed to the outside of the primary feed internally threaded tube 4.
In the above embodiment, the positioning structure 41 is a sleeve member, which is sleeved and fixed outside the primary feeding internal threaded tube 4, and the color of the sleeve member should be obviously different from that of the protective sleeve, so as to achieve a better indication effect.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The utility model provides a tapping machine main shaft segmentation second grade feed mechanism which characterized in that: the device comprises a main shaft driving mechanism (1), a secondary feeding external screw mandrel sleeve (2), a hollow main shaft (3), a primary feeding internal screw tube (4) and a primary feeding driving mechanism (5), wherein the secondary feeding external screw mandrel sleeve (2) is vertically assembled at a shaft hole at the upper end of the main shaft driving mechanism (1), a hollow driving shaft (11) is arranged in the main shaft driving mechanism (1), the upper end of the driving shaft (11) coaxially stretches into the secondary feeding external screw mandrel sleeve (2), the main shaft (3) coaxially penetrates through the driving shaft (11), the primary feeding internal screw tube (4) is coaxially arranged with the driving shaft (11), the primary feeding driving mechanism (5) is connected with the upper end of the primary feeding internal screw tube (4), the upper end of the main shaft (3) stretches into the interior of the primary feeding internal screw tube (4) and is rotationally connected with the interior of the primary feeding internal screw tube (4), the inner wall of the upper end of the driving shaft (11) is axially provided with a key groove, the main shaft (3) is axially matched with the primary feeding internal screw tube (4) in a rotating mode, the primary feeding internal screw tube (4) is rotationally matched with the primary feeding internal screw tube (31) or the primary feeding internal screw tube (4), simultaneously, the key block (31) which drives the main shaft (3) to move downwards is embedded with the key groove, or moves upwards until the key block (31) is separated from the key groove, and the main shaft driving mechanism (1) is used for driving the driving shaft (11) to rotate.
2. The tapping machine spindle segment secondary feed mechanism as set forth in claim 1 wherein: the spindle drive mechanism further comprises a protection sleeve, wherein the protection sleeve is vertically assembled at the upper end of the spindle drive mechanism (1) and sleeved outside the secondary feeding external thread screw rod sleeve (2).
3. The tapping machine spindle segment secondary feed mechanism as set forth in claim 1 wherein: the upper end of the main shaft (3) is rotatably connected with the primary feeding internal thread pipe (4) through a bearing (32).
4. The tapping machine spindle segment secondary feed mechanism as set forth in claim 1 wherein: the novel spindle drive mechanism further comprises a mounting frame (6), the mounting frame (6) is assembled at the upper end of the spindle drive mechanism (1), and the primary feed drive mechanism (5) is assembled at the upper end of the mounting frame (6).
5. The tapping machine spindle segment secondary feed mechanism as set forth in claim 4 wherein: the primary feeding driving mechanism (5) comprises a screw rod (51) and a driving seat (52), the screw rod (51) is vertically fixed at the upper end of the mounting frame (6), the lower end of the screw rod (51) coaxially stretches into the main shaft (3), a screw hole matched with the screw rod (51) is formed in the middle of the driving seat (52), and the driving seat (52) is screwed on the screw rod (51) and fixedly connected with the upper end of the primary feeding internal thread tube (4).
6. The tapping machine spindle segment secondary feed mechanism as set forth in claim 5 wherein: the upper end of the driving seat (52) is provided with a driving device for driving the driving seat to rotate.
7. The tapping machine spindle segment secondary feed mechanism as set forth in claim 6 wherein: the driving device is a hand wheel.
8. The tapping machine spindle segment secondary feed mechanism as set forth in claim 4 wherein: the mounting frame (6) comprises a mounting plate (61) and a plurality of supporting rods (62), wherein the mounting plate (61) is horizontally arranged above the spindle driving mechanism (1), the supporting rods (62) are vertically arranged and uniformly spaced around the primary feeding internal thread pipe (4), the upper ends of the supporting rods (62) are fixedly connected with the lower ends of the mounting plate (61), and the lower ends of the supporting rods are fixedly connected with the upper ends of the spindle driving mechanism (1).
9. A tapping machine spindle segment secondary feed mechanism as in any one of claims 1-8, wherein: the outer surface of the primary feeding internally threaded pipe (4) is provided with a positioning structure (41) for indicating the screwing depth of the primary feeding internally threaded pipe.
10. The tapping machine spindle segment secondary feed mechanism as set forth in claim 9 wherein: the positioning structure (41) is a sleeve sleeved and fixed outside the primary feeding internal thread pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210643914.4A CN114799993B (en) | 2022-06-08 | 2022-06-08 | Main shaft subsection secondary feeding mechanism of tapping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210643914.4A CN114799993B (en) | 2022-06-08 | 2022-06-08 | Main shaft subsection secondary feeding mechanism of tapping machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114799993A CN114799993A (en) | 2022-07-29 |
| CN114799993B true CN114799993B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210643914.4A Active CN114799993B (en) | 2022-06-08 | 2022-06-08 | Main shaft subsection secondary feeding mechanism of tapping machine |
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| Country | Link |
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| CN (1) | CN114799993B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08168909A (en) * | 1994-12-15 | 1996-07-02 | Cosmo Koki Co Ltd | Boring machine |
| CN201214157Y (en) * | 2008-07-11 | 2009-04-01 | 康中禄 | Manual feeding type multifunctional tapping machine |
| CN201833022U (en) * | 2010-07-19 | 2011-05-18 | 刘英爵 | Electric tapping machine |
| CN102626882A (en) * | 2012-04-26 | 2012-08-08 | 中国石油天然气集团公司 | Pipeline pressure perforating machine |
| CN109202131A (en) * | 2018-11-15 | 2019-01-15 | 哈尔滨跃进管道工程设备有限公司 | Hydraulic pipeline drilling machine |
| CN212793184U (en) * | 2020-07-17 | 2021-03-26 | 天津市先锋管道工程机械有限公司 | Novel manual trompil is bored |
| CN113334122A (en) * | 2021-07-01 | 2021-09-03 | 王鹏程 | Tapping machine main shaft segmentation second grade feeding structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU126644U8 (en) * | 2012-12-13 | 2014-04-20 | Открытое акционерное общество "Магистральные нефтепроводы "Дружба" (ОАО "МН "Дружба") | DEVICE FOR CUTTING HOLES IN A PIPELINE UNDER PRESSURE |
-
2022
- 2022-06-08 CN CN202210643914.4A patent/CN114799993B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08168909A (en) * | 1994-12-15 | 1996-07-02 | Cosmo Koki Co Ltd | Boring machine |
| CN201214157Y (en) * | 2008-07-11 | 2009-04-01 | 康中禄 | Manual feeding type multifunctional tapping machine |
| CN201833022U (en) * | 2010-07-19 | 2011-05-18 | 刘英爵 | Electric tapping machine |
| CN102626882A (en) * | 2012-04-26 | 2012-08-08 | 中国石油天然气集团公司 | Pipeline pressure perforating machine |
| CN109202131A (en) * | 2018-11-15 | 2019-01-15 | 哈尔滨跃进管道工程设备有限公司 | Hydraulic pipeline drilling machine |
| CN212793184U (en) * | 2020-07-17 | 2021-03-26 | 天津市先锋管道工程机械有限公司 | Novel manual trompil is bored |
| CN113334122A (en) * | 2021-07-01 | 2021-09-03 | 王鹏程 | Tapping machine main shaft segmentation second grade feeding structure |
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| Publication number | Publication date |
|---|---|
| CN114799993A (en) | 2022-07-29 |
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