CN104924020A - Thread root part cold rolling device of petroleum drilling tool - Google Patents
Thread root part cold rolling device of petroleum drilling tool Download PDFInfo
- Publication number
- CN104924020A CN104924020A CN201510396210.1A CN201510396210A CN104924020A CN 104924020 A CN104924020 A CN 104924020A CN 201510396210 A CN201510396210 A CN 201510396210A CN 104924020 A CN104924020 A CN 104924020A
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- CN
- China
- Prior art keywords
- rolling device
- cold rolling
- slide block
- petroleum drilling
- drilling tools
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
- B23P9/02—Treating or finishing by applying pressure, e.g. knurling
Abstract
The invention discloses a thread root part cold rolling device of a petroleum drilling tool. The thread root part cold rolling device comprises a fixing frame, a wheel seat, a pressing rod, a force exertion mechanism, a sliding block and a pressure adjusting handle. The fixing frame is hinged to one end of the pressing rod, and the other end of the pressing rod is hinged to a hook, wherein a weighing weight is hung on the hook. The middle end of the pressing rod is hinged to the force exertion mechanism which is movably connected with the sliding block, and the sliding block and the wheel seat on the sliding block can slide along a sliding rail of the fixing frame. Pressure adjustment is conducted on the sliding block through the pressure adjusting handle on the outer side of the sliding rail of the fixing frame, and the fixing frame is provided with a clamping block for fixing the device to a machine tool cutter rest. The angle of a crank of the force exertion mechanism is changed slightly by rotating the pressure adjusting handle and pushing or pulling the sliding block, rolling pressure is adjusted at will, and a wheel can conduct rolling on a thread root part. Compared with a rolling device driven by a hydraulic device, the thread root part cold rolling device is simple in structure, even in force exertion and capable of saving energy. The roughness of the thread root part processed by the device becomes smaller, rigidity is improved, the organization structure of a hardened layer is uniform, the anti-fatigue performance is obviously improved, and the service life of the petroleum drilling tool is prolonged by 2 or more times.
Description
Technical field
The present invention relates to a kind of rolling tools, be specifically related to a kind of cold rolling device for screw threads of petroleum drilling tools root.
Background technology
At present, in oil, natural gas drilling process, the impact of alternate loads such as " tension-compression-torsions " is constantly born due to oil drilling tools, screw threads of petroleum drilling tools root concentrates larger stress, easily forms fatigue crack source, causes screw thread seriously to bond and unloads not open button and lost efficacy, serious meeting generation screw thread phenomenon of rupture, not only cause drilling tool to scrap, also have a strong impact on drilling progress, cause certain economic loss.Analyze after testing, find, in screw thread process process, because thread root rigidity layer is not enough, to cause thread damage.
Summary of the invention
The present invention, for overcoming the deficiencies in the prior art, provides a kind of screw threads of petroleum drilling tools root cold rolling device, according to oil drilling tools product form of thread, select the roller mount, the roller that match, double thread root carries out finish rolling hardening, increases rigidity layer thickness, improves its fatigue resistance.
Technical scheme of the present invention is achieved in that
This screw threads of petroleum drilling tools root cold rolling device, comprises fixed mount, roller mount, depression bar, force application mechanism, slide block and adjusting pressuring handle, and weighs counterweight and hook.Described fixed mount and described depression bar one end chain connection, the depression bar other end and the described hook chain connection being hung with counterweight, depression bar middle-end and described force application mechanism chain connection, force application mechanism is flexibly connected described slide block, slide block and the roller mount on it can be slided along the slideway of described fixed mount, slide block carries out pressure regulation by the adjusting pressuring handle outside fixed mount slideway, described fixed mount is provided with the grip block be fixed on by this rolling device on lathe cutter saddle.
Below the relevant technologies means in some preferred versions:
Described force application mechanism is connecting rod crank mechanism, and connecting rod crank mechanism comprises the connecting rod, crank and the push rod that connect successively, push rod and described slide block chain connection.
Described fixed mount comprises groove and epipleural, lower side panel, and the side plate up and down that groove and outer surface thereof are fixed forms the closed slideway of described slide block.
Described adjusting pressuring handle is threaded with screw set by described slide block.
Described slide block bottom is connected with the electronic sensor for measuring pressure.
The tapered shaft-like of described roller mount, axle head is fixed with the circular roller of roll extrusion.
Further, described roller select >=tool steel of 58HRC hardness makes.
Described grip block is the rectangle boss meeting lathe tool specification, is placed in the rear side of described fixed mount.
In operation, when hanging counterweight on the hook of depression bar one end, depression bar produces pressure, by the interaction of the connecting rod of force application mechanism, crank and push rod, drives the slide block be flexibly connected with push rod to move.Set by slide block bottom, pressure sensor shows pressure reading thereupon, and namely force application mechanism is delivered to the roll extrusion power on roller by slide block and roller mount.Depending on the adjusting pressuring handle outside actual demand adjustable fixed mount, promote or pull slide block to make degree in crank angle fine motion, regulating roll extrusion power, the thread root of pair of rollers oil drilling tools can be made under the pressure set to implement finish rolling hardening.
The invention has the beneficial effects as follows: this screw threads of petroleum drilling tools root cold rolling device, by force application mechanism, the weight transfer of upper for hook counterweight is shown pressure reading to electronic sensor, by rotating adjusting pressuring handle, promote or pull slide block to make degree in crank angle fine motion, free adjustment roll extrusion power, makes pair of rollers thread root implement roll extrusion.Compared with the rolling device driven with hydraulic means, structure is simple, uniform force application, economize energy.The thread root roughness of this device process diminishes, hardness increases, and hardened layer uniform texture, anti-fatigue performance significantly strengthens, and oil drilling tools improves more than 2 times service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is the right view of Fig. 2.
Detailed description of the invention
Embodiments of the invention are introduced further below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the embodiment of this screw threads of petroleum drilling tools root cold rolling device, comprises counterweight 1, hook 2, bearing pin 3, depression bar 4, connecting rod 5, grip block 6, crank 7, push rod 8, slide block 9, fixed mount 10, electronic sensor 11, hex bolts 12, roller mount 13, adjusting pressuring handle 14, roller 15 and nut 16.
Depression bar 4 one end is flexibly connected the hook 2 being hung with counterweight 1, and the other end is flexibly connected with the pressing plate 1-1 of fixed mount 10 upper end, and middle-end is flexibly connected connecting rod 5, crank 7 and push rod 8 successively.The force application mechanism force that counterweight 1, hook 2, bearing pin 3 and depression bar 4 are consisted of connecting rod 5, crank 7, push rod 8, all active nodes are connected by bearing pin 3, and power passes to slide block 9 the most at last.
As shown in Figure 3, fixed mount 10 is quadra structures, and master plate 1-3 is the steel plate that one piece of milling becomes groove, comprises plane, lower plane and trailing flank, and epipleural 1-2, lower side panel 1-4 are all connected by hex bolts 1-5 with master plate 1-3; Epipleural 1-2, master plate 1-3 and side plate 1-4 form a closed slideway, facilitate slide block 9 to move left and right along slideway.
Grip block 6 is the rectangle boss meeting lathe tool specification, is positioned at the rear side of fixed mount 10 master plate 1-3, to be fixed on the knife rest of gas thread or other lathe.
Slide block 9 is made up of the steel plate of a band concave surface, and the concave surface center of slide block 9 is flexibly connected by bearing pin 3 with push rod 8, and the outerplanar hex bolts 12 of opposed concave is fixedly connected with roller mount 13, and roller 15 adopts nut 16 fixing and locking in the front end of roller mount 13; Adjusting pressuring handle 14 is flexibly connected with the fixed head of fixed mount 10 right flank, described fixed head adopts hex bolts 12 to fix, adjusting pressuring handle 14 afterbody is threaded with the inner bolt hole on slide block 9, by rotary handle 14, can promote or pull slide block 9 to horizontally slip along the slideway in fixed mount 10 master plate 1-3, epipleural 1-2 and lower side panel 1-4 together with roller mount 13.
Described slide block 9 left surface bottom is connected with electronic sensor 11.When hook 2 hangs counterweight 1, depression bar 4 produces pressure, by connecting rod 5, crank 7, push rod 8 and slide block 9, make pressure sensor 11 shows pressure reading, rotate adjusting pressuring handle 14, promote or pull slide block 9 to slide along the slideway of fixed mount 10, making the fine motion of crank 7 angle, regulate roll extrusion power, the thread root of roller 15 pairs of oil drilling tools can be made under the pressure set to implement finish rolling hardening.
By reference to the accompanying drawings the preferred embodiment of the present invention is explained in detail above; but the present invention is not limited to above-mentioned preferred embodiment; all make in essential scope of the present invention change, remodeling, interpolation or replacement, all should belong to protection scope of the present invention.
Claims (8)
1. a screw threads of petroleum drilling tools root cold rolling device, is characterized in that: it comprises fixed mount, roller mount, depression bar, force application mechanism, slide block and adjusting pressuring handle, and weighs counterweight and hook; Described fixed mount and described depression bar one end chain connection, the depression bar other end and the described hook chain connection being hung with counterweight, depression bar middle-end and described force application mechanism chain connection, force application mechanism connects described slide block, slide block and the roller mount on it can be slided along the slideway of described fixed mount, slide block carries out pressure regulation by the adjusting pressuring handle outside fixed mount slideway, described fixed mount is provided with the grip block be fixed on by this rolling device on lathe cutter saddle.
2. screw threads of petroleum drilling tools root cold rolling device according to claim 1, it is characterized in that: described force application mechanism is connecting crank mechanism, connecting crank mechanism comprises the connecting rod, crank and the push rod that connect successively, push rod and described slide block chain connection.
3. screw threads of petroleum drilling tools root cold rolling device according to claim 1 and 2, it is characterized in that: described fixed mount comprises groove and epipleural, lower side panel, the side plate up and down that groove and outer surface thereof are fixed forms the closed slideway of described slide block.
4. screw threads of petroleum drilling tools root cold rolling device according to claim 1 and 2, is characterized in that: described adjusting pressuring handle is threaded with screw set by described slide block.
5. screw threads of petroleum drilling tools root cold rolling device according to claim 1, is characterized in that: described slide block bottom is connected with the electronic sensor for measuring pressure.
6. screw threads of petroleum drilling tools root cold rolling device according to claim 1, it is characterized in that: the tapered shaft-like of described roller mount, axle head is fixed with the circular roller of roll extrusion.
7. screw threads of petroleum drilling tools root cold rolling device according to claim 6, is characterized in that: and described roller selects >=and the tool steel of 58HRC hardness makes.
8. screw threads of petroleum drilling tools root cold rolling device according to claim 1, is characterized in that: described grip block is the rectangle boss meeting lathe tool specification, is placed in the rear side of described fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396210.1A CN104924020B (en) | 2015-07-08 | 2015-07-08 | A kind of screw threads of petroleum drilling tools root cold breakdown pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396210.1A CN104924020B (en) | 2015-07-08 | 2015-07-08 | A kind of screw threads of petroleum drilling tools root cold breakdown pressure device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104924020A true CN104924020A (en) | 2015-09-23 |
| CN104924020B CN104924020B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510396210.1A Active CN104924020B (en) | 2015-07-08 | 2015-07-08 | A kind of screw threads of petroleum drilling tools root cold breakdown pressure device |
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| Country | Link |
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| CN (1) | CN104924020B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201105367Y (en) * | 2007-08-17 | 2008-08-27 | 冯美斌 | Suspension type crankshaft fillet rolling machine tool |
| CN201295802Y (en) * | 2008-11-12 | 2009-08-26 | 江阴德玛斯特钻具有限公司 | Drilling rod joint screw thread cold rolling device |
| CN202240358U (en) * | 2011-08-18 | 2012-05-30 | 四川德诺特机器制造有限公司 | Embossing machine |
| CN103212941A (en) * | 2013-04-28 | 2013-07-24 | 江苏曙光石油钻采设备有限公司 | Hydraulic type external thread cold rolling device |
| CN204818605U (en) * | 2015-07-08 | 2015-12-02 | 河南神龙石油钻具有限公司 | Cold rolling press device of oil drilling tool screw root |
-
2015
- 2015-07-08 CN CN201510396210.1A patent/CN104924020B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201105367Y (en) * | 2007-08-17 | 2008-08-27 | 冯美斌 | Suspension type crankshaft fillet rolling machine tool |
| CN201295802Y (en) * | 2008-11-12 | 2009-08-26 | 江阴德玛斯特钻具有限公司 | Drilling rod joint screw thread cold rolling device |
| CN202240358U (en) * | 2011-08-18 | 2012-05-30 | 四川德诺特机器制造有限公司 | Embossing machine |
| CN103212941A (en) * | 2013-04-28 | 2013-07-24 | 江苏曙光石油钻采设备有限公司 | Hydraulic type external thread cold rolling device |
| CN204818605U (en) * | 2015-07-08 | 2015-12-02 | 河南神龙石油钻具有限公司 | Cold rolling press device of oil drilling tool screw root |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104924020B (en) | 2017-03-01 |
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Inventor after: Zhang Qingming Inventor after: He Weiguo Inventor after: Zhao Hongxing Inventor after: Niu Zhanbo Inventor after: Yang Pan Inventor after: Liu Hao Inventor after: Xu Yanchao Inventor before: Zhang Qingming Inventor before: He Weiguo Inventor before: Zhao Hongxing Inventor before: Niu Zhanbo Inventor before: Yang Pan Inventor before: Liu Hao Inventor before: Xu Yanzhao |
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