CN115164672A - Device and method for detecting pipe end cutting oblique length of large-diameter pipe - Google Patents
Device and method for detecting pipe end cutting oblique length of large-diameter pipe Download PDFInfo
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- CN115164672A CN115164672A CN202210800757.3A CN202210800757A CN115164672A CN 115164672 A CN115164672 A CN 115164672A CN 202210800757 A CN202210800757 A CN 202210800757A CN 115164672 A CN115164672 A CN 115164672A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
本发明涉及管材尺寸检测技术领域，特别涉及一种大口径管材管端切斜长度检测装置和检测方法，包括移动单元，其包括至少三个辊轮且转动轴线互相平行，其中一个所述辊轮配置有驱动，所述辊轮用于贴合在待检管材内外壁上并通过内外壁上的辊轮对顶夹紧在管周上；检测单元，跟随所述移动单元沿管周运动，其包括伸缩组件和测量组件，所述伸缩组件一端用于贴合待检管材端面并适应其轮廓伸缩，另一端设置所述测量组件，所述测量组件用于检测所述伸缩组件的伸缩量；本发明检测过程中可以采集沿管材端面的全部数据，较现有检测方法仅采集两个点或四个点的数据判定更全面精准，检测结果更准确。
The invention relates to the technical field of pipe size detection, in particular to a detection device and detection method for the oblique length of a large-diameter pipe end, including a moving unit, which includes at least three rollers with parallel axes of rotation, wherein one of the rollers It is equipped with a drive, the rollers are used to fit on the inner and outer walls of the pipe to be inspected, and are clamped on the circumference of the pipe by the rollers on the inner and outer walls; the detection unit follows the movement of the moving unit along the circumference of the pipe, which It includes a telescopic assembly and a measuring assembly, one end of the telescopic assembly is used to fit the end face of the pipe to be inspected and expand and contract according to its contour, and the other end is provided with the measuring assembly, and the measuring assembly is used to detect the expansion and contraction of the telescopic assembly; In the detection process of the invention, all data along the end face of the pipe can be collected, which is more comprehensive and accurate than the existing detection method only collecting data from two or four points, and the detection result is more accurate.
Description
Technical Field
The invention relates to the technical field of pipe size detection, in particular to a device and a method for detecting the pipe end cut oblique length of a large-caliber pipe.
Background
At present, the large-caliber pipe (the nominal diameter is larger than 650 mm) is widely applied, and in the installation and construction of the pipe, whether the end surface oblique cutting length of the pipe meets the standard directly influences the difficulty or success or failure of the opposite installation of the pipe.
In the prior art, a square ruler is generally adopted for measuring the end face chamfer length of a large-diameter pipe, a plumb line is generally adopted for measuring and a special platform is generally adopted for measuring. The square measurement needs a larger square, the detection convenience is poor, the measurement usually adopts two-point positions for detection, and the detection accuracy is poor; (2) The plumb line measuring method is difficult to acquire data, four points are usually detected along the circumference when the method is used, and the detected data has larger deviation with the real situation; (3) The detection method of the special platform reduces the working difficulty of detection personnel, but a large detection platform is required to be configured for the detection of the large-diameter pipe, the detection equipment cost is high, the pipe needs to be transported and hoisted to the special platform, the detection cost is greatly increased, the detection flexibility is poor, the pipe is limited by the production line production arrangement in the application, and the detection cannot be carried out at any time when the detection is temporarily required.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a device and a method for detecting the pipe end cut-off slant length of a large-diameter pipe, which can automatically move along the circumference of the pipe, have high detection precision and can detect at any time. In order to achieve the above object, the present invention is achieved by the following technical solutions:
in a first aspect, the present invention provides a large-diameter pipe end chamfer length detection device, including:
the moving unit comprises at least three rollers, the rotating axes of the rollers are mutually parallel, one roller is provided with a drive, and the rollers are attached to the inner wall and the outer wall of the pipe to be detected and clamped on the periphery of the pipe in an opposite manner through the rollers on the inner wall and the outer wall;
the detecting element follows the mobile unit is along pipe motion all around, and it includes flexible subassembly and measuring component, flexible subassembly one end is used for the laminating to wait to examine the tubular product terminal surface and adapt to its profile flexible, and the other end sets up measuring component, measuring component is used for detecting flexible subassembly's flexible volume.
As a further technical scheme, the mobile unit further comprises a first mounting seat used for mounting the roller, only one roller is attached to the inner wall or the outer wall of the pipe to be detected, and the roller is detachably connected with the first mounting seat.
As a further technical scheme, the moving unit comprises three rollers, the rollers detachably connected with the first mounting seat are driving rollers, and the other two rollers are driven rollers.
As a further technical scheme, the driving roll is used for laminating the outer wall of the pipe to be detected.
As a further technical scheme, the driving roller is in bolted connection with the first mounting seat, the first mounting seat is provided with a hole, and the distance between the driving roller and the driven roller is adjusted by adjusting the position of a bolt in the hole.
As further technical scheme, flexible subassembly is equipped with along the rolling gyro wheel of terminal surface with the one end of examining the laminating of examining the tubular product terminal surface.
As a further technical solution, the retraction assembly is provided with an elastic member for urging the retraction thereof.
As a further technical scheme, the measuring component comprises a first scale part and a second scale part, the first scale part and the second scale part form a vernier, and the first scale part moves along with the telescopic component.
As a further technical solution, the measuring assembly further comprises a displacement sensor associated with the vernier, and the displacement sensor is configured with a control system.
In a second aspect, the present invention provides a detection method according to the detection apparatus of the first aspect, comprising the steps of:
press from both sides the running roller and tightly on examining the pipe week of examining the tubular product, dispose driven running roller and rotate and drive all the other running rollers and rotate for the mobile unit drives the detecting element motion along pipe week motion in, flexible subassembly is examined the tubular product terminal surface for the adaptation and is stretched out and drawn back this moment, detects in order to obtain the length of surely inclining to flexible volume of flexible subassembly through measuring component.
The beneficial effects of the invention are as follows:
(1) The detection device provided by the embodiment of the invention clamps the moving unit on the circumference of the pipe under the matching of the rollers, and enables the moving unit to automatically move along the circumference of the pipe under the driving action, so that the intensity and difficulty of manual operation are reduced, the detection efficiency is improved, and the measurement deviation caused by human factors during manual operation is avoided.
(2) According to the invention, the plurality of rollers have certain lengths and are tightly attached to the pipe wall, so that the walking track curve of the detection device is always kept to be vertical to the pipe axis when the detection device rotates along the circumference of the pipe, and the position of the detection device relative to the length direction of the pipe is ensured to be unchanged.
(3) The telescopic assembly can be used for telescopic operation to adapt to the change of the end face of the pipe to be detected, all data along the end face of the pipe can be collected in the detection process, compared with the existing detection method which only collects data of two points or four points, the detection method is more comprehensive and accurate, and the detection result is more accurate.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to limit the invention. It will be further appreciated that the figures are for simplicity and clarity and have not necessarily been drawn to scale. The invention will now be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
FIG. 1 is a schematic axial view of a detection device according to an embodiment of the present invention;
FIG. 2 is a disassembled schematic view showing the structure of the detection device in the embodiment of the invention;
FIG. 3 shows a schematic diagram of the use of the detection device in an embodiment of the invention;
FIG. 4 shows an enlarged partial schematic view at A in FIG. 3;
FIG. 5 shows a schematic diagram of the use of the detection device in an embodiment of the invention;
fig. 6 shows a partially enlarged schematic view at B in fig. 5.
In the figure: 1. a drive roll; 2. a drive roll holder; 3. a first driven roller; 4. a first driven roller holder; 5. a second driven roller; 6. a second driven roller holder; 7. a first mounting seat; 8. a roller; 9. a roller retainer; 10. a second mounting seat; 11. a first scale part; 12. a spring; 13. a bolt; 14. a hole is formed; 15. a first through hole; 16. a second through hole; 17. a second scale portion; 18. a sliding part; 19. a spring mounting portion; 20. a pipe to be detected; 21. the end face of the pipe to be detected.
Detailed Description
The technical solutions in the exemplary embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1 and fig. 2, the present embodiment provides a large-caliber pipe end chamfer length detection device, including:
the moving unit comprises at least three rollers, the rotating axes of the rollers are parallel to each other, one roller is provided with a drive, and the rollers are attached to the inner wall and the outer wall of the pipe to be detected and clamped on the periphery of the pipe in an opposite manner through the rollers on the inner wall and the outer wall;
the detection unit follows the mobile unit and follows the pipe motion all around, and it includes flexible subassembly and measuring component, and flexible subassembly one end is used for the laminating to wait to examine the tubular product terminal surface and adapt to its profile and stretch out and draw back, and the other end sets up measuring component, and measuring component is used for detecting flexible volume of flexible subassembly.
This embodiment detection device is in order to press from both sides the mobile unit tight on pipe week under the cooperation of a plurality of running rollers to make the mobile unit along pipe week automatic movement through driven effect, reduced manual operation intensity and degree of difficulty, improved detection efficiency, human factor causes the measurement deviation when having evaded manual operation simultaneously.
Because a plurality of running rollers of the detection device have certain length and are tightly attached to the pipe wall, the walking track curve of the detection device is always kept to be perpendicular to the pipe axis when the detection device rotates along the pipe circumference (because the diameter jumping of the whole section of the pipe is smaller relative to the diameter value of the pipe, the pipe can be considered as a constant-diameter pipe), and the position of the detection device relative to the length direction of the pipe is ensured to be unchanged, namely the rotating axis of the running roller is always parallel to the axis of the pipe to be detected.
The telescopic assembly is telescopic for adapting to the change of the end face of the pipe to be detected, all data along the end face of the pipe can be collected in the detection process, and compared with the existing detection method, the detection method is more comprehensive and accurate in judgment by only collecting data of two points or four points, and the detection result is more accurate.
The moving unit comprises at least three rollers as long as clamping on the circumference of the pipe can be realized. It will be appreciated that if the inner wall of the tube is against at least one roller, then the outer wall of the tube is at least two and vice versa. In addition, the roller wheel provided with the driving device can be positioned on the inner wall or the outer wall of the pipe, and the moving unit can be driven to move. In this embodiment, the driving device is a motor, which is not shown in the figure, but may be other power devices.
In order to examine the convenient installation of detection device and examine the tubular product pipe week with the detection beginning on, the mobile unit still includes first mount pad 7 that is used for installing the running roller, only has a running roller to laminate and examine tubular product inner wall or outer wall, and this running roller can dismantle with first mount pad 7 and be connected.
In this embodiment, as shown in fig. 1 and 2, the moving unit includes three rollers, the first mounting seat 7 is detachably connected to a driving roller 1, the other two rollers are driven rollers, and the driven rollers are respectively a first driven roller 3 and a second driven roller 5. It is understood that the roll is rotated by being provided with a holder, the drive roll 1 is provided with a drive roll holder 2, the first driven roll 3 is provided with a first driven roll holder 4, and the second driven roll 5 is provided with a second driven roll holder 6. The driving roller 1 is used for being attached to the outer wall of the pipe 20 to be detected, and the first driven roller 3 and the second driven roller 5 are both used for being attached to the inner wall of the pipe 20 to be detected, as shown in fig. 3, 4, 5 and 6.
The driving roller 1, the first driven roller 3 and the second driven roller 5 are arranged in an isosceles triangle shape, the first driven roller 3 and the second driven roller 5 are fixed on the first mounting seat 7 through the holding frames, and the driving roller 1 is detachably connected with the first mounting seat 7 through the holding frames.
The first mounting seat 7 is of a plate structure and is substantially triangular.
The driving roller 1 is connected with the first mounting seat 7 through bolts, the first mounting seat 7 is provided with a hole 14, and the distance between the driving roller 1 and the driven roller is adjusted through adjusting the position of the bolt 13 in the hole 14. Specifically, the end of the drive roll holder 2 is provided with two bosses, corresponding positions on the first mounting base 7 are provided with grooves, the bosses can slide in the grooves, and the two holes 14 have a certain length, and the length direction of the holes is consistent with the sliding direction of the bosses in the grooves. The distance between the driving roller 1 and the driven roller is adjusted by adjusting the position of the bolt 13 in the hole 14, so that the purpose of matching pipes with different wall thicknesses is achieved.
The telescopic assembly is provided with a roller 8 rolling along the end face with one end attached to the end face 21 of the pipe to be detected. The roller 8 is used for attaching the end face 21 of the pipe to be detected, the roller 8 and the pipe end roll move to replace sliding movement, so that the movement resistance of the detection device relative to the vernier can be well reduced, and the condition that the vernier is blocked and cannot move when the point needle type and the pipe end contact meet a pit or a bulge in the pipe end when moving is avoided.
It will be understood that the roller 8 is provided with a cage in order to perform the rolling, and therefore the roller 8 is provided with a roller cage 9.
The main body of the telescopic assembly is a stepped shaft and a second mounting seat 10 for keeping the stepped shaft to slide, the second mounting seat 10 is of a gantry structure formed by plates, two supporting leg plates of the second mounting seat are mounted on one side of the first mounting seat 7, and rollers are arranged on the opposite side of the side.
The telescopic assembly is provided with an elastic element for promoting the telescopic assembly to retract, the elastic element is a spring 12 in the embodiment, a first through hole 15 is arranged on the first mounting seat 7, it can be understood that after the three-roller wheel is mounted around the pipe, the axle center of the first through hole 15 just corresponds to the end face of the pipe, a second through hole 16 is arranged on the right side plate (in the direction in fig. 2) of the second mounting seat 7 and is coaxial with the first through hole 15, the stepped shaft comprises a sliding part 18 and a spring mounting part 19, the diameter of the spring mounting part 19 is smaller than that of the sliding part 18, the sliding part 18 penetrates through the first through hole 15 and is in sliding fit with the first through hole 15, and the spring mounting part 19 penetrates through the second through hole 16 and is in sliding fit with the second through hole 16. The spring 12 is mounted on the spring mounting portion 19 with one end thereof abutting against the stepped end surface of the slide portion 18 and the other end thereof abutting against the right side plate of the second mounting seat 7. It will be appreciated that the spring 12 cannot pass through the first through hole 15.
The measuring component comprises a first scale part 11 and a second scale part 17 which form a vernier scale, and the first scale part 11 moves along with the telescopic component. The first scale part 11 and the second scale part 17 are provided with scales, the vernier scale in the prior art can be adopted, the working principle of the vernier scale is the same as that of a vernier caliper, and detailed description is omitted here. In addition, the measuring assembly further comprises a displacement sensor associated with the vernier, the displacement sensor being provided with a control system. The control system is provided with an automatic reading matching device and a screen, so that corresponding data and curves detected by the control system can be displayed through the screen, data visualization is realized, and test data can be printed by associating the system with a printer. How to realize detection data and data visualization of the displacement sensor and the control system thereof belongs to the prior art, and details are not repeated here.
In the initial moving state of the detection device, a proper compression amount is reserved in the spring 12, so that the situation that the first scale part 11 can be inserted into the first mounting seat 7 under the thrust of the reserved compression force of the spring 12 when the detection device moves along the circumference of a pipe and the first scale part 11 is pushed by the end face of the pipe when the detection device moves along the circumference of the pipe and the pipe end is protruded is ensured, the roller 8 pushes the first scale part 11 to be extended out relative to the first mounting seat 7, and scales are arranged on the first scale part 11 and the second scale part 17, so that the first scale part 11 is driven to move relative to the first mounting seat 7 when the pipe end is not normal in the moving process of the detection device, the value of a vernier can be read (the expansion amount of the expansion assembly is reflected by the value of the vernier), the verticality change value is further obtained, and manual reading can be carried out by the mode; in addition, a displacement sensor is arranged at the top end of the first mounting seat 7 and is associated with the vernier, and a control system is additionally arranged outside the detection device, so that when the detection device moves relative to the pipe along the circumference of the pipe, the displacement of the detection device and the displacement of the vernier relative to the first mounting seat 7 form position and end face size change data and a curve, and therefore the purpose that equipment can automatically detect the end face oblique cutting length when the detection device moves along the circumference of the pipe is achieved.
Example 2
The present embodiment provides a detection method according to the detection apparatus in embodiment 1, including the steps of:
firstly, the pipe is horizontally placed on a pipe placing bracket or a roller frame, and the end of the pipe to be measured is kept to be suspended from the bracket or the roller frame by more than or equal to 150mm when the pipe is placed.
Secondly, a first driven roller 3 and a second driven roller 5 of the detection device are arranged on the inner wall of the pipe and are attached to each other, a driving roller 1 is adjusted and installed to be locked, three roller wheels are clamped on the periphery of the pipe 20 to be detected, the rotation axes of the roller wheels are parallel to the axis of the coffin 20 to be detected, and as shown in figures 5 and 6, rollers 8 at the opposite ends of the vernier are kept to be attached to the end face of the pipe and a spring 12 is kept to have a certain pre-tightening force.
Then, dispose driven drive roll 1 and rotate and drive first driven voller 3 and second driven voller 5 and rotate for the mobile unit drives the detecting element motion when moving along the pipe week, flexible subassembly is in order to adapt to wait to examine the tubular product terminal surface and stretch out and draw back this moment, detects in order to obtain the terminal surface and surely incline length data flexible volume of flexible subassembly through measuring component.
If manual reading is carried out, the number n of measurement points along the circumference of the pipe is designed according to the diameter of the pipe, the pipe end is divided into n sections along the circumference of the pipe and marked (the measurement result obtained when the value n is larger is more accurate), the driving roller 1 is started to enable the detection device to move along the circumference of the pipe, manual reading of scale values is suspended when the detection device reaches the section until the n data are completely acquired, wherein the maximum value and the minimum value in the n data are the maximum pipe end beveling length, and if an automatic reading device is adopted for detection, the system adopts full-circumference data acquisition and forms corresponding curve data and the difference between the maximum value and the minimum value and the full-circumference average difference.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (10)
1. The utility model provides a heavy-calibre tubular product pipe end cuts oblique length detection device which characterized in that includes:
the moving unit comprises at least three rollers, the rotating axes of the rollers are parallel to each other, one of the rollers is provided with a drive, and the rollers are attached to the inner wall and the outer wall of the pipe to be detected and clamped on the periphery of the pipe in an opposite manner through the rollers on the inner wall and the outer wall;
the detecting element follows the mobile unit is along pipe motion all around, and it includes flexible subassembly and measuring component, flexible subassembly one end is used for the laminating to wait to examine the tubular product terminal surface and adapt to its profile flexible, and the other end sets up measuring component, measuring component is used for detecting flexible subassembly's flexible volume.
2. The device for detecting the tube end chamfer length of the large-caliber tube as claimed in claim 1, wherein the moving unit further comprises a first mounting seat for mounting the roller, only one roller is attached to the inner wall or the outer wall of the tube to be detected, and the roller is detachably connected with the first mounting seat.
3. The device for detecting the tube end beveling length of the large-caliber tube as claimed in claim 2, wherein the moving unit comprises three rollers, the first mounting seat is detachably connected with a driving roller, and the other two rollers are driven rollers.
4. The large-caliber pipe end chamfer length detection device according to claim 3, wherein the driving roller is used for attaching to the outer wall of the pipe to be detected.
5. The large-caliber pipe end chamfer length detection device according to claim 3, wherein the driving roller is in bolted connection with the first mounting seat, the first mounting seat is provided with a hole, and the distance between the driving roller and the driven roller is adjusted by adjusting the position of a bolt in the hole.
6. The device for detecting the pipe end chamfer length of the large-caliber pipe as claimed in claim 1, wherein a roller rolling along the end face is arranged at one end of the telescopic assembly, which is attached to the end face of the pipe to be detected.
7. The apparatus for detecting the tube end chamfer length of the large-caliber tube as claimed in claim 1, wherein the telescopic assembly is provided with an elastic member for promoting the retraction thereof.
8. The large-caliber pipe end chamfer length detection device according to claim 1, wherein the measuring component comprises a first scale part and a second scale part which form a vernier scale, and the first scale part moves along with the telescopic component.
9. The large caliber pipe end chamfer length detection device of claim 8, wherein the measuring assembly further comprises a displacement sensor associated with the vernier, the displacement sensor being provided with a control system.
10. A method for testing a device according to any of claims 1-9, comprising the steps of:
press from both sides the running roller and tightly on examining the pipe week of examining the tubular product, dispose driven running roller and rotate and drive all the other running rollers and rotate for the mobile unit drives the detecting element motion along pipe week motion in, flexible subassembly is examined the tubular product terminal surface for the adaptation and is stretched out and drawn back this moment, detects in order to obtain the length of surely inclining to flexible volume of flexible subassembly through measuring component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210800757.3A CN115164672B (en) | 2022-07-08 | 2022-07-08 | A device and method for detecting the bevel length of large-diameter pipe ends |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210800757.3A CN115164672B (en) | 2022-07-08 | 2022-07-08 | A device and method for detecting the bevel length of large-diameter pipe ends |
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| CN115164672A true CN115164672A (en) | 2022-10-11 |
| CN115164672B CN115164672B (en) | 2025-10-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118442894A (en) * | 2024-07-05 | 2024-08-06 | 四川省川河盛鑫电力工程有限公司 | Cable length measuring device |
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