CN108581069B - Processing equipment and process for removing decarburized layer and cracks on inner wall of drill rod - Google Patents
Processing equipment and process for removing decarburized layer and cracks on inner wall of drill rod Download PDFInfo
- Publication number
- CN108581069B CN108581069B CN201810715731.2A CN201810715731A CN108581069B CN 108581069 B CN108581069 B CN 108581069B CN 201810715731 A CN201810715731 A CN 201810715731A CN 108581069 B CN108581069 B CN 108581069B
- Authority
- CN
- China
- Prior art keywords
- drill rod
- cutter
- fixed
- cracks
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- 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
- B23Q5/28—Electric drives
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling And Boring (AREA)
Abstract
The invention provides a processing device for removing a decarburized layer and cracks on the inner wall of a drill rod, which comprises: the fixing device comprises a rack and two baffles fixed in the rack; the power device comprises a motor and a horizontal screw rod lifter which are connected with each other; the tensioning device comprises a lifting ring nut, a spring and a lifting ring screw which are all horizontally arranged and are sequentially connected; the rotating device comprises a sleeve, a sliding block and a fastener, the sleeve is rotatably fixed in one baffle, the drill rod penetrates through the sleeve and is fixed by the two baffles, the side wall of the sleeve is provided with a slotted hole with three included angles of 120 degrees, and the sliding block can slidably clamp the slotted hole; the cutter comprises a cutter bar and three blades, wherein the blades are fixed on the cutter bar and are uniformly distributed on a spiral line coaxial with the cutter bar, the included angle between every two adjacent blades is 120 degrees, and the axial distance between the two blades at two ends is equal to the length of the drill rod. The invention has the beneficial effects that: the processing efficiency is improved, the anti-fatigue capability of the drill rod is improved, and the service life of the drill rod is prolonged.
Description
Technical Field
The invention relates to the field of machining, in particular to machining equipment and a machining process for removing decarburized layers and cracks on the inner wall of a drill rod.
Background
As a drilling tool in mine excavation, a drill rod is a main consumable part of a rock drilling rig for performing a rock drilling operation. Due to the complex working conditions and stress conditions, the requirements on the service performance and quality of the drill rod are more and more strict. At present, the production of drill rods includes hot piercing hot drawing, hot piercing hot rolling, drilling cored hot rolling, hot piercing hot rolling cold rolling and other methods. In the production process, the heat treatment of a hot piercing method and a drilling method can cause a certain decarburization phenomenon, the thickness of a decarburized layer is about 1 mm, and the decarburized layer belongs to loose substances and is easy to generate fatigue failure; the rolling process can cause the inner hole of the drill rod to be not round, and the inner hole is wrinkled, so that the stress concentration and the crack phenomenon are caused, and the service life of the drill rod is shortened. The bore hole is the location where the drill rod is most susceptible to fatigue failure.
Aiming at the problems of decarburization and corrugation of the inner hole of the drill rod, related researchers insert an alloy capillary into the inner hole of the drill rod to form composite hollow steel so as to achieve the purposes of strengthening the inner hole and prolonging the service life. In addition, there are also related research institutes which utilize different chemical compositions of steel with different phase change types, and use high-strength steel as the lining of hollow steel to make the hardness of the inner wall of the drill rod higher than that of the rod body.
The two methods are both lining new materials to strengthen the inner wall of the drill rod, and the service life of the drill rod is prolonged. The method plays a remarkable role to a certain extent, but only prolongs the crack source incubation period of the bore of the drill rod in principle, and basically does not fundamentally remove the decarburized layer and the cracks, and the decarburized layer and the cracks still continue to cause the fatigue fracture of the bore of the drill rod. At present, relevant researchers utilize gun drill drilling to remove decarburized layer and crackle, but the efficiency of gun drill drilling mode is low, and the difficult production demand that satisfies.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a processing device and a processing technology for removing decarburized layers and cracks on the inner wall of a drill rod.
An embodiment of the present invention provides a processing apparatus for removing a decarburized layer and cracks on an inner wall of a drill rod, including:
the fixing device comprises a rack and two baffles, wherein fixing holes are formed in the baffles, the two baffles are vertically fixed on the rack, and the two fixing holes are oppositely formed;
the power device comprises a lead screw lifter and a motor which are connected with each other, and the lead screw lifter is horizontally arranged and fixed at the left end of the rack;
the tensioning device comprises a lifting ring nut, a spring and a lifting ring screw which are all horizontally arranged and are sequentially connected, and the lifting ring screw is fixed at the right end of the rack;
the rotating device comprises a sleeve, a sliding block and a fastener, wherein the sleeve is rotatably arranged in a fixing hole of one baffle, a drill rod passes through the sleeve and a fixing hole on the other baffle and then is fixed, the sleeve rotates to drive the drill rod to rotate, the side wall of the sleeve is provided with three slotted holes, an included angle between every two adjacent slotted holes is 120 degrees, one end of the sliding block is clamped into one slotted hole, and the sliding block can slide along the opening direction of the slotted hole and is fixed on the baffle through the fastener;
the cutter comprises a cutter bar and three blades, wherein the cutter bar is a spring steel cylinder, all the blades are fixed on the side wall of the cutter bar, the blades are uniformly distributed on a spiral line coaxial with the cutter bar, the included angle between every two adjacent blades is 120 degrees, the axial distance between the two blades at two ends on the cutter bar is equal to the length of the drill rod, one end of the cutter bar is connected with the lead screw lifter, and the other end of the cutter bar penetrates through an inner hole of the drill rod and is connected with the lifting ring nut.
Further, an input shaft of the screw rod lifter is connected with a coupler, the coupler is connected with the motor, and an output shaft of the screw rod lifter is connected with the cutter bar.
Furthermore, a sliding groove is formed in the baffle along the opening direction of the groove hole, the sliding groove and the groove hole are connected into a whole, and the sliding block is fixed on the sliding groove along the sliding groove through the fastening piece.
Furthermore, the blades are of a long strip structure with an arched longitudinal section and a sawtooth-shaped cross section, all the blades are parallel to the cutter bar, and the maximum radius of the blades is 0.7-1.25 mm larger than the radius of the inner hole of the drill rod.
Furthermore, the two baffles are a fixed baffle and a movable baffle, the fixed baffle is fixedly connected with the rack, the sleeve is inserted into a fixed hole of the fixed baffle, and the movable baffle is detachably fixed on the rack.
The embodiment of the invention also provides a process for removing the decarburized layer and the cracks on the inner wall of the drill rod, which adopts the processing equipment for removing the decarburized layer and the cracks on the inner wall of the drill rod and comprises the following steps:
s1, a drill rod penetrates through a sleeve on one baffle and a fixing hole on the other baffle to be fixed;
s2, controlling the screw rod lifter to adjust the position of the cutter, so that a rightmost blade of the cutter is aligned with an inner hole of a right port of the drill rod;
s3, the motor rotates forwards, the cutter feeds leftwards, and the feed amount is the distance between two adjacent blades of the cutter;
s4, the motor rotates reversely, the cutter retracts rightwards, and the retracting amount is the distance between every two adjacent blades of the cutter;
s5, rotating the sleeve clockwise or anticlockwise to enable the drill rod to rotate 120 degrees, and repeating the steps S3 and S4;
s6, repeating the step S5 to finish cutting.
Further, S7 repeats S5 a plurality of times to complete the cutting.
Further, the feeding speed of the cutter during feeding is 1.2-6 m/min.
Furthermore, the retraction speed of the cutter during retraction is 3-9 m/min.
Further, the rotating speed of the motor is 1200-2800 rad/min.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the invention relates to a processing device for removing decarburized layers and cracks on the inner walls of drill rods, wherein a fixing device stably clamps the drill rods, a power device accurately controls the cutter feeding amount and the cutter retracting amount, and a rotating device accurately controls the rotating angle of the drill rods.
Drawings
FIG. 1 is a front view of a machining apparatus for removing a decarburized layer and cracks from the inner wall of a drill rod according to the present invention;
FIG. 2 is a top view of a processing apparatus for removing a decarburized layer and cracks from the inner wall of a drill rod according to the present invention;
FIG. 3 is a front view of the cutter 110 of FIG. 1 in accordance with the present invention;
FIG. 4 is a left side view of the cutter 110 of FIG. 1 in accordance with the present invention;
FIG. 5 isbase:Sub>A cross-sectional view A-A of the cutter 110 of FIG. 3 in accordance with the present invention;
FIG. 6 is a schematic view of the securing apparatus 140 of FIG. 1 in accordance with the present invention;
FIG. 7 is a schematic view of the rotary device 160 of FIG. 1 in accordance with the present invention;
FIG. 8 is a schematic view of the position of the tool 110 and the drill rod 100 prior to the feeding of the present invention;
fig. 9 is a schematic view showing the positional relationship between the cutter 110 and the drill rod 100 after the cutting operation according to the present invention.
In the figure: 100-drill rod, 110-cutter, 111-cutter bar, 112-first blade, 113-second blade, 114-third blade, 120-frame, 130-power device, 131-lead screw lifter, 132-motor, 133-coupler, 134-flange, 140-fixing device, 141-baffle, 142-sleeve, 150-tensioning device, 151-lifting ring nut, 152-spring, 153-lifting ring screw, 160-rotating device, 161-slide block, 162-screw, 163 slotted hole and 164 chute.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 2, an embodiment of the present invention provides a processing apparatus for removing a decarburized layer and cracks on an inner wall of a drill rod 100 having an inner diameter of 6 to 8mm and a length of more than 1m, the processing apparatus including:
the fixing device 140 shown in fig. 6 comprises a frame 120 and two baffles 141, wherein the two baffles 141 are a fixed baffle and a movable baffle, the fixed baffle is welded on the frame, a threaded hole is formed in the lower end of the fixed baffle, the fixed baffle can slide on the frame 120 on the right side of the fixed baffle and can be fixed on the frame through a positioning bolt, and fixing holes are formed in the middle parts of the two baffles and are oppositely arranged;
the power device 130 comprises a screw rod lifter 131, a motor 132 and a coupler 133, the screw rod lifter 131 is preferably a worm screw rod lifter horizontally arranged and fixed at the left end of the rack 120, the motor 132 is preferably a three-phase asynchronous motor, an input shaft of the screw rod lifter 131 is connected with the coupler 133, the coupler 133 is connected with the motor 132, and an output shaft of the screw rod lifter 131 is in threaded connection with a flange 134 and is fastened through a connecting bolt;
the tensioning device 150 comprises a lifting eye nut 151, a spring 152 and a lifting eye screw 153 which are all horizontally arranged and are sequentially connected, the lifting eye screw 153 is fixed at the right end of the rack 120, and two ends of the spring 152 are respectively in threaded connection with the lifting eye nut 151 and the lifting eye screw 153;
the rotating device 160 shown in fig. 7 includes two sleeves 142, a sliding block 161 and a fastener, in this embodiment, the fastener selects two screws 162, the two sleeves 142 are respectively rotatably disposed in the fixing holes of the two baffles 141, the drill rod 100 is fixed after passing through the two sleeves 142, the sleeves 142 on the fixing baffles rotate to drive the drill rod 100 to rotate, the side walls of the sleeves 142 on the fixing baffles are provided with three slots 163, an included angle between two adjacent slots 163 is 120 °, the middle portion of the sliding block 161 is provided with a horizontal sliding slot 164, the two screws 162 are both inserted into the sliding slot 164 to fix the sliding block 161 on the fixing baffles, the two screws 162 are loosened to release the sliding block 161, the sliding block 161 blocks one slot 163 or releases the slot 163, the drill rod 100 rotates 120 ° synchronously with the sleeve 142 every time the sleeve 142 on the fixing baffles rotates 120 °, and the slot 163 blocked by the sliding block 161 is replaced;
the cutter 110 shown in fig. 3 to 5 includes a cutter bar 111 and three blades, the three blades include a first blade 112, a second blade 113, and a third blade 114 from left to right in sequence, the three blades and a cutter bar portion therebetween form a cutter body, the length of the cutter body is greater than or equal to the length of the drill rod 100, in this embodiment, an axial distance between the first blade 112 and the third blade 114 at two ends of the cutter bar 111 is equal to the length of the drill rod 100, the cutter bar 111 is a spring steel cylinder and can be bent appropriately, all the blades are fixed on a side wall of the cutter bar 111 and are uniformly distributed on a spiral line coaxial with the cutter bar 111, an included angle between two adjacent blades is 120 °, two ends of the cutter bar 111 are provided with external threads, one end of the cutter bar 111 is in threaded connection with the flange 134 and is locked by a nut, and the other end of the cutter bar 111 passes through an inner hole of the drill rod 100 and is in threaded connection with the suspension ring nut 151.
In this embodiment, the blades are long-strip-shaped structures with arched longitudinal sections and saw-tooth cross sections, all the blades are parallel to the tool bar 111, and the maximum radius of the blades is 0.7-1.25 mm larger than the radius of the inner hole of the drill rod 100.
Referring to fig. 8 and 9, an embodiment of the present invention further provides a process for removing a decarburized layer and cracks on an inner wall of a drill rod, which uses the above-mentioned processing apparatus for removing the decarburized layer and cracks on the inner wall of the drill rod, and includes the following steps:
s1, the left end of a drill rod 100 penetrates through a sleeve 142 on the fixed baffle to be clamped, and the movable baffle is adjusted to a proper position and is fixed on the rack 120 through a positioning bolt;
s2, controlling the lead screw lifter 130 to adjust the position of the cutter 110, so that the third blade 114 is aligned with the inner hole of the right end opening of the drill rod 100, and the first blade 112 and the second blade 113 are positioned in the inner hole of the drill rod 100;
s3, the motor 132 rotates forwards, the cutter 110 feeds leftwards, the feed amount is the distance between two adjacent blades of the cutter 110, the feed speed during feeding is 1.2-6 m/min, the three blades simultaneously cut the inner wall of the drill rod 100 for the first time, at the moment, the third blade 114 and the second blade 113 move to the position of the second blade 113 and the position of the first blade 112 before feeding respectively, and the first blade 112 extends out of the left port of the drill rod 100;
s4, the motor 132 rotates reversely, the cutter 110 retracts rightwards, the retracting amount is the distance between two adjacent blades of the cutter 110, the retracting speed during retracting is 3-9 m/min, the first retracting is finished, and the three blades all retract to the initial positions in the S2;
s5, rotating the sleeve 142 on the fixed baffle clockwise or anticlockwise to enable the drill rod 100 to rotate 120 degrees, and repeating the step S3 to finish secondary feeding and the step S4 to finish secondary retracting;
s6, repeating the step S5, namely, continuing to rotate the drill rod 100 according to the rotating direction in the step S5, and then carrying out third feeding and third retracting, wherein decarburized layers and cracks of the inner hole of the drill rod 100 are completely removed.
When the thickness of the decarburized layer and the cracks on the inner wall of the drill rod 100 is too large or the inner wall of the drill rod 100 is not smooth enough, the step S5 can be repeated for a plurality of times until the requirements are met.
In this embodiment, the motor 132 is preferably set to a rotational speed of 1200 to 2800rad/min.
In this document, the terms front, back, upper, lower and the like in the drawings are used for the sake of clarity and convenience only for the components are located in the drawings and the positions of the components relative to each other. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (8)
1. A processing equipment for removing decarburized layers and cracks on the inner walls of drill rods is characterized by comprising:
the fixing device comprises a rack and two baffles, wherein fixing holes are formed in the baffles, the two baffles are vertically fixed on the rack, and the two fixing holes are oppositely formed;
the power device comprises a lead screw lifter and a motor which are connected with each other, and the lead screw lifter is horizontally arranged and fixed at the left end of the rack;
the tensioning device comprises a lifting ring nut, a spring and a lifting ring screw which are all horizontally arranged and are sequentially connected, and the lifting ring screw is fixed at the right end of the rack;
the rotating device comprises a sleeve, a sliding block and a fastener, wherein the sleeve is rotatably arranged in a fixing hole of one baffle, a drill rod passes through the sleeve and a fixing hole on the other baffle and then is fixed, the sleeve rotates to drive the drill rod to rotate, the side wall of the sleeve is provided with three slotted holes, an included angle between every two adjacent slotted holes is 120 degrees, one end of the sliding block is clamped into one slotted hole, and the sliding block can slide along the opening direction of the slotted hole and is fixed on the baffle through the fastener;
the cutter comprises a cutter bar and three blades, wherein the cutter bar is a spring steel cylinder, all the blades are fixed on the side wall of the cutter bar and are uniformly distributed on a spiral line coaxial with the cutter bar, the included angle between every two adjacent blades is 120 degrees, the axial distance between the two blades at two ends of the cutter bar is equal to the length of the drill rod, one end of the cutter bar is connected with the lead screw lifter, and the other end of the cutter bar penetrates through the inner hole of the drill rod and is connected with the lifting ring nut; the input shaft of the screw rod lifter is connected with a coupler, the coupler is connected with the motor, and the output shaft of the screw rod lifter is connected with the cutter bar; the baffle is provided with a sliding groove along the opening direction of the slotted hole, the sliding groove and the slotted hole are connected into a whole, and the sliding block is fixed on the sliding groove along the sliding groove through the fastener.
2. The machining apparatus for removing a decarburized layer and cracks from the inner wall of a drill rod according to claim 1, wherein: the blade is a long strip structure with an arched longitudinal section and a sawtooth cross section, all the blades are parallel to the cutter bar, and the maximum radius of the blades is 0.7-1.25 mm larger than the radius of the inner hole of the drill rod.
3. The machining apparatus for removing a decarburized layer and cracks from the inner wall of a drill rod according to claim 1, wherein: the two baffles are fixed baffles and movable baffles, the fixed baffles are fixedly connected with the rack, the sleeve is inserted into a fixed hole of each fixed baffle, and the movable baffles are detachably fixed on the rack.
4. A process for removing a decarburized layer and cracks on the inner wall of a drill rod, which comprises the steps of using the apparatus for removing a decarburized layer and cracks on the inner wall of a drill rod according to any one of claims 1 to 3:
s1, a drill rod penetrates through a sleeve on one baffle and a fixing hole on the other baffle to be fixed;
s2, controlling the screw rod lifter to adjust the position of the cutter, so that a rightmost blade of the cutter is aligned with an inner hole of a right port of the drill rod;
s3, the motor rotates forwards, the cutter feeds leftwards, and the feed amount is the distance between two adjacent blades of the cutter;
s4, the motor rotates reversely, the cutter retracts rightwards, and the retracting amount is the distance between every two adjacent blades of the cutter;
s5, rotating the sleeve clockwise or anticlockwise to enable the drill rod to rotate 120 degrees, and repeating the steps S3 and S4;
s6, repeating the step S5 to finish cutting.
5. The process for removing a decarburized layer and cracks from the inner wall of a drill rod according to claim 4, further comprising: and S7, repeating the step S5 for multiple times to finish cutting.
6. The process for removing a decarburized layer and cracks from the inner wall of a drill rod according to claim 4, wherein: the feeding speed of the cutter during feeding is 1.2-6 m/min.
7. The process for removing the decarburized layer and cracks on the inner wall of the drill rod according to claim 4, wherein: the retraction speed of the cutter during retraction is 3-9 m/min.
8. The process for removing a decarburized layer and cracks from the inner wall of a drill rod according to claim 4, wherein: the rotating speed of the motor is 1200-2800 rad/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715731.2A CN108581069B (en) | 2018-06-29 | 2018-06-29 | Processing equipment and process for removing decarburized layer and cracks on inner wall of drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715731.2A CN108581069B (en) | 2018-06-29 | 2018-06-29 | Processing equipment and process for removing decarburized layer and cracks on inner wall of drill rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108581069A CN108581069A (en) | 2018-09-28 |
| CN108581069B true CN108581069B (en) | 2023-01-03 |
Family
ID=63635458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810715731.2A Active CN108581069B (en) | 2018-06-29 | 2018-06-29 | Processing equipment and process for removing decarburized layer and cracks on inner wall of drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108581069B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115488275B (en) * | 2022-09-23 | 2023-11-21 | 山东凿岩钎具有限公司 | Rock drilling rod processing equipment and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011841B (en) * | 1953-06-05 | 1957-07-11 | Mannesmann Ag | Device for the removal of the inner burrs in longitudinally welded pipes |
| EP0039985A1 (en) * | 1980-05-12 | 1981-11-18 | British Gas Corporation | Cutting tool |
| CN201394677Y (en) * | 2009-04-06 | 2010-02-03 | 潍坊亿斯特管业科技有限公司 | Cleaner for inner wall list edges of EMT pipes |
| CN205395140U (en) * | 2016-02-02 | 2016-07-27 | 天津君诚金利管业有限责任公司 | A layer remove device is moulded to steel pipe lining |
| CN106475727A (en) * | 2016-12-23 | 2017-03-08 | 济南迈科管道科技股份有限公司 | A kind of ERW inner burr doctoring apparatus |
| CN107237612A (en) * | 2017-06-02 | 2017-10-10 | 中国地质科学院勘探技术研究所 | A kind of rope coring drill pipe inwall mudcake cleaning plant |
| CN206702317U (en) * | 2017-04-26 | 2017-12-05 | 霍山县龙鑫金属制品有限公司 | A kind of draw-off gear for being used to go pore burr removing |
| CN107695382A (en) * | 2017-10-10 | 2018-02-16 | 中国地质大学（武汉） | Remove the decarburized layer of heavy drill shank inwall and the process equipment and method of crackle |
| CN208408748U (en) * | 2018-06-29 | 2019-01-22 | 中国地质大学（武汉） | A kind of process equipment removing drill steel inner wall decarburized layer and crackle |
-
2018
- 2018-06-29 CN CN201810715731.2A patent/CN108581069B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1011841B (en) * | 1953-06-05 | 1957-07-11 | Mannesmann Ag | Device for the removal of the inner burrs in longitudinally welded pipes |
| EP0039985A1 (en) * | 1980-05-12 | 1981-11-18 | British Gas Corporation | Cutting tool |
| CN201394677Y (en) * | 2009-04-06 | 2010-02-03 | 潍坊亿斯特管业科技有限公司 | Cleaner for inner wall list edges of EMT pipes |
| CN205395140U (en) * | 2016-02-02 | 2016-07-27 | 天津君诚金利管业有限责任公司 | A layer remove device is moulded to steel pipe lining |
| CN106475727A (en) * | 2016-12-23 | 2017-03-08 | 济南迈科管道科技股份有限公司 | A kind of ERW inner burr doctoring apparatus |
| CN206702317U (en) * | 2017-04-26 | 2017-12-05 | 霍山县龙鑫金属制品有限公司 | A kind of draw-off gear for being used to go pore burr removing |
| CN107237612A (en) * | 2017-06-02 | 2017-10-10 | 中国地质科学院勘探技术研究所 | A kind of rope coring drill pipe inwall mudcake cleaning plant |
| CN107695382A (en) * | 2017-10-10 | 2018-02-16 | 中国地质大学（武汉） | Remove the decarburized layer of heavy drill shank inwall and the process equipment and method of crackle |
| CN208408748U (en) * | 2018-06-29 | 2019-01-22 | 中国地质大学（武汉） | A kind of process equipment removing drill steel inner wall decarburized layer and crackle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108581069A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202199796U (en) | Novel cylinder barrel boring machine tool | |
| CN101413576B (en) | Method for machining and assembling chevron gear | |
| CN207695787U (en) | Full-automatic die head threading machine | |
| EP2279819B1 (en) | Device for mechanically machining tubular or rod-shaped workpieces | |
| CN201900335U (en) | Inner and outer circle chamfering machine | |
| CN108581069B (en) | Processing equipment and process for removing decarburized layer and cracks on inner wall of drill rod | |
| WO2010022552A1 (en) | Method and device for forming thread on reinforcing rod end | |
| KR101415513B1 (en) | A orbital type pipe cutting/beveling machine for the cutting tool can be freely controlled in rotation plate | |
| CN103920916B (en) | Cutting edge milling device inside and outside diagonal cutting pliers | |
| CN103551596A (en) | Turning unit with inside support fixture used for clamping metal tubes with various specifications | |
| CN208408748U (en) | A kind of process equipment removing drill steel inner wall decarburized layer and crackle | |
| CN105171422B (en) | Insulating tension clamp automatic processing device | |
| CN203426297U (en) | Clamp used for bending pipe | |
| CN108620909A (en) | A kind of steel pipe cutting tool platform | |
| CN210281453U (en) | Follow-on long brill tail screw bores tail processingequipment | |
| CN210068020U (en) | Drilling machine with drill rod centralizing function | |
| KR20150108075A (en) | A powertrain for the outside into rotation plate and a orbital type pipe cutting/beveling machine for the cutting tool can be freely controlled in rotation plate using thereof | |
| CN210024788U (en) | Bearing raceway grinding machine | |
| CN201931114U (en) | Automatic borer of lathe tailstock | |
| CN205765117U (en) | A kind of chain sheet clamping apparatus and there is the chain sheet process equipment of this device | |
| KR20170039342A (en) | Barrel broaching machine | |
| CN105196390B (en) | Wooden barrel processing machine is used in wasp cultivation | |
| CN210848423U (en) | Boring machine | |
| CN103406466B (en) | Pipe bending clamp | |
| CN215431687U (en) | Drill bit of adjustable drill bit size |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |