CN2729636Y - Detector for straight degree of steel pipe end - Google Patents
Detector for straight degree of steel pipe end Download PDFInfo
- Publication number
- CN2729636Y CN2729636Y CN 200420090676 CN200420090676U CN2729636Y CN 2729636 Y CN2729636 Y CN 2729636Y CN 200420090676 CN200420090676 CN 200420090676 CN 200420090676 U CN200420090676 U CN 200420090676U CN 2729636 Y CN2729636 Y CN 2729636Y
- Authority
- CN
- China
- Prior art keywords
- pipe end
- steel pipe
- guidepost
- web joint
- hole
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract description 22
- 239000010959 steel Substances 0.000 title abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model relates to a detector for straight or concentric degree of steel pipe end that is relatively intermediated, comprising a machine frame, an action cylinder, a connecting plate, a guide post, springs, a V-shaped rack, and a displacement sensor. Wherein, the action cylinder is installed on the machine frame which is fixed on an object; the cylinder rod of the action cylinder is connected with the connecting plate whose two ends are each provided with a through hole; the guide post, whose one end is connected with the V-shaped rack and the other end is fixed by a cap nut after passing through the through hole of the connecting plate, is mounted in the through hole; springs whose two ends respectively press on the connecting plate and the V-shaped rack, are mounted on the guide post; the displacement sensor is fixedly mounted at the end of the V-shaped rack. The utility model can accurately detect the bending, deforming position and size of a steel pipe so as to raise work efficiency and reduce working intensity.
Description
(1) technical field
The utility model relates to the middle relatively linearity of steel tube end part or the pick-up unit of concentricity.
(2) background technology
The pipe end of general oil well pipe will be thickeied processing, be about to two ends overstriking under heated condition, so that the screw thread of back processing, Jia Hou steel pipe two ends diameter is with middle different like this, cause steel pipe can't carry out the end aligning when operation is aligned in the back, thereby form the region between the heart and the diaphragm district of steel pipe aligning.In order to remedy this aligning the region between the heart and the diaphragm district, increased pipe end gag press straightening operation one in the back of aligning operation, specially local straightening processing is carried out at the two ends of steel pipe, make the steel pipe total length satisfy the requirement of API linearity.But before gag press straightening, must judge diastrophic position of pipe end and size earlier, could determine the position of gag press straightening and the size of acting force.Determine that at present the method that aligning position and size adopt is artificial ocular estimate, promptly operating rotary supporting roller by operating personnel supports steel pipe and rotates, another operative employee's hand takes a chalk to be supported on the other support of pipe end, certain distance is reserved on chalk and pipe end surface, when steel pipe rotates, operating personnel keep an eye on the variable in distance of end surfaces and chalk end with eyes, when the artificial judgement increase of this distance is above standard, just use chalk at the standardized mark in pipe end surface, another operating personnel just stop the rotation, by the diastrophic size of detecting operation personnel's marker for judgment and carry out gag press straightening.This process requires high especially to artificial experience, and error in judgement is bigger, to such an extent as to after often gag press straightening occurring, the linearity of steel pipe is still seriously overproof, need carry out repeated detection, straightening processing repeatedly, and operating efficiency is low, working strength is big, and needs two operating personnel's cooperations to carry out.
(3) summary of the invention
The purpose of this utility model is to provide a kind of pipe end straightness detecting device, and it has overcome the defective that existing manually-operated is judged, can accurately detect diastrophic position of steel tube end part and size, increases work efficiency, and reduces working strength.
The utility model is achieved in that a kind of pipe end straightness detecting device, comprise frame, acting cylinder, web joint, guidepost, spring, the V-type frame, displacement transducer, acting cylinder is contained on the frame, frame is fixed on the object, the piston rod of acting cylinder connects web joint, the web joint two ends have a through hole, guidepost is housed in the through hole, guidepost one end connects the V-type frame, the guidepost other end passes through the web joint through hole by fixed by nut, be set with spring on the guidepost, both ends of the spring is pressed in respectively on web joint and the V-type frame, V-type frame end portion fixed installation displacement transducer.
Above-mentioned pipe end straightness detecting device, described displacement transducer are the digital display displacement sensor that has display screen; Acting cylinder is cylinder or oil cylinder.
The utility model is to adopt cylinder or hydraulic oil cylinder driving web joint, web joint is pressed on the V-type frame by spring, the V-type frame is pressed in the surface of steel pipe, detect the middle relatively bending deformation quantity of pipe end by the displacement transducer that is contained on the V-type frame, and show by digital display screen, whole device is installed on the frame, and frame is fixed on the object.As long as operating personnel just can go out diastrophic position of pipe end and size by the display screen control detection, thereby, realize disposable accurate quantification gag press straightening operation for the accurate location and the aligning amount of gag press straightening provides scientific basis.The utility model compared with prior art can accurately detect diastrophic position of steel tube end part and size, increases work efficiency, and reduces working strength.
(4) description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model pipe end straightness detecting device structural representation;
Fig. 2 detects synoptic diagram for the pipe end straightness detecting device.
Among the figure: 1 frame, 2 acting cylinders, 3 nuts, 4 springs, 5 web joints, 6 V-type framves, 7 guideposts, 8 displacement transducers, 9 display screens, 10 pipe end straightness detecting devices, 11 examine steel pipes, 12 support the rotation roller.
(5) embodiment
Referring to Fig. 1, a kind of pipe end straightness detecting device 10 comprises frame 1, acting cylinder 2, web joint 5, guidepost 7, spring 4, V-type frame 6, displacement transducer 8.Acting cylinder 2 is cylinder or oil cylinder, and acting cylinder 2 is installed in the middle of the frame 1, and frame 1 is a square plate, and frame 1 is fixed on the external object.The piston rod of acting cylinder 2 connects web joint 5, can drive web joint 5 and move up and down; Web joint 5 is a square plate, and the centre has threaded hole and matches with the piston rod of acting cylinder 2, and web joint 5 two ends have a manhole, and guidepost 7 is housed in the through hole.Two guideposts 7 are right cylinder, and guidepost 7 one ends connect V-type frame 6, and guidepost 7 other ends are fixing by nut 3 by web joint 5 through holes; Be set with spring 4 on the guidepost 7, spring 4 two ends are pressed in respectively on web joint 5 and the V-type frame 6.Digital display displacement transducer 8 of V-type frame 6 ends fixed installations, this digital display displacement sensor 8 has display screen 9, can demonstrate the displacement of displacement transducer 8 and the body surface that is detected.
Referring to Fig. 2, pipe end straightness detecting device 10 testing processes are, after navigating on the support rotation roller 12, the steel pipe conveying of aligning to be detected begins rotation, acting cylinder 2 work of pipe end straightness detecting device 10, drive web joint 5, V- type frame 6,8 declines such as grade of digital display displacement sensor, after V-type frame 6 touches steel pipe 11 surfaces, acting cylinder 2 still continues the segment distance that descends, along guidepost 7 compression springs 4, till the piston of acting cylinder 2 puts in place, be pressed in the more straight surface of steel pipe 11 by spring 4 pressure with V-type frame 6 this moment, digital display displacement sensor 8 is facing to the pipe end of thickening, along with the rotation of steel pipe 11, digital display displacement sensor 8 just detects constantly and demonstrates the middle relatively bending deformation quantity of steel pipe 11 pipe ends.This operation needs only operating personnel just can go out diastrophic position of steel pipe 11 pipe ends and size by display screen 9 control detection, thereby realizes disposable accurate quantification gag press straightening operation.
Claims (3)
1. pipe end straightness detecting device, it is characterized in that comprising frame, acting cylinder, web joint, guidepost, spring, V-type frame, displacement transducer, acting cylinder is contained on the frame, frame is fixed on the object, the piston rod of acting cylinder connects web joint, the web joint two ends have a through hole, guidepost is housed in the through hole, guidepost one end connects the V-type frame, the guidepost other end passes through the web joint through hole by fixed by nut, be set with spring on the guidepost, both ends of the spring is pressed in respectively on web joint and the V-type frame, V-type frame end portion fixed installation displacement transducer.
2. pipe end straightness detecting device according to claim 1 is characterized in that displacement transducer is the digital display displacement sensor that has display screen.
3. pipe end straightness detecting device according to claim 1 is characterized in that acting cylinder is cylinder or oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090676 CN2729636Y (en) | 2004-09-29 | 2004-09-29 | Detector for straight degree of steel pipe end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420090676 CN2729636Y (en) | 2004-09-29 | 2004-09-29 | Detector for straight degree of steel pipe end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2729636Y true CN2729636Y (en) | 2005-09-28 |
Family
ID=35048412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420090676 Expired - Fee Related CN2729636Y (en) | 2004-09-29 | 2004-09-29 | Detector for straight degree of steel pipe end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2729636Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769726A (en) * | 2010-02-12 | 2010-07-07 | 上海交通大学 | Welded pipe end straightness online detection device |
| CN101634549B (en) * | 2009-08-21 | 2010-09-22 | 上海交通大学 | Oil well drill rod straightness detecting device and detecting method thereof |
| CN102335682A (en) * | 2010-07-28 | 2012-02-01 | 宝山钢铁股份有限公司 | Online detecting and straightening equipment and method of straightness of pipe end of drill pipe |
| CN108278960A (en) * | 2018-03-23 | 2018-07-13 | 中国石油天然气集团公司管材研究所 | A kind of measurement method of steel tube end part straightness measuring instrument and the measuring instrument |
-
2004
- 2004-09-29 CN CN 200420090676 patent/CN2729636Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101634549B (en) * | 2009-08-21 | 2010-09-22 | 上海交通大学 | Oil well drill rod straightness detecting device and detecting method thereof |
| CN101769726A (en) * | 2010-02-12 | 2010-07-07 | 上海交通大学 | Welded pipe end straightness online detection device |
| CN102335682A (en) * | 2010-07-28 | 2012-02-01 | 宝山钢铁股份有限公司 | Online detecting and straightening equipment and method of straightness of pipe end of drill pipe |
| CN102335682B (en) * | 2010-07-28 | 2013-06-19 | 宝山钢铁股份有限公司 | Online detecting and straightening equipment and method of straightness of pipe end of drill pipe |
| CN108278960A (en) * | 2018-03-23 | 2018-07-13 | 中国石油天然气集团公司管材研究所 | A kind of measurement method of steel tube end part straightness measuring instrument and the measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050928 Termination date: 20130929 |