CN211978752U - Clamping mechanism for drill rod magnetic leakage flaw detector - Google Patents
Clamping mechanism for drill rod magnetic leakage flaw detector Download PDFInfo
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- CN211978752U CN211978752U CN201921190876.1U CN201921190876U CN211978752U CN 211978752 U CN211978752 U CN 211978752U CN 201921190876 U CN201921190876 U CN 201921190876U CN 211978752 U CN211978752 U CN 211978752U
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- clamping
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- rod
- flaw detector
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Abstract
The utility model discloses a clamping mechanism for drilling rod magnetic leakage flaw detector relates to the clamping device field of magnetic leakage flaw detector, can produce more sliding friction's problem with being detected the drilling rod for the clamping mechanism who solves magnetic leakage flaw detector. The utility model comprises a transmission seat, a clamping device and a driving mechanism, wherein the transmission seat comprises a base and a frame body, the clamping device is arranged on the upper part of the frame body, the driving mechanism is arranged on the upper end of the base, and the upper part of the frame body is provided with a first cross rod and a second cross rod; the clamping device comprises a transmission part and a clamping part, wherein the transmission part comprises a motor, a driving gear, a shaft, a driven gear, a cam, a guide rod, a lifting plate and a return spring, and the clamping part comprises a damping spring, a clamping wheel carrier and a bull's eye universal wheel. The utility model discloses use the bull's eye universal wheel of complete driven as the pinch roller, will be surveyed sliding friction between drilling rod and the clamping mechanism and fall to minimum, can effectively reduce energy loss and equipment and drilling rod damage.
Description
Technical Field
The utility model relates to a clamping device field of magnetic leakage flaw detector specifically is a clamping mechanism for drilling rod magnetic leakage flaw detector.
Background
And an electromagnetic detection method for detecting the leakage magnetic field by using a detection element to find the defects, namely leakage magnetic flaw detection. The drill rod is a steel pipe with threads at the end, when the ferromagnetic drill rod is fully magnetized, magnetic lines of force in the pipe wall are blocked by defects on the surface or near the surface of the ferromagnetic drill rod, the magnetic lines of force on the defects are distorted, and a part of the magnetic lines of force are leaked out of the inner surface and the outer surface of the drill rod to form a leakage magnetic field. When the leakage magnetic field is picked up by the detecting element which is positioned on the surface of the drill rod and moves relative to the drill rod, and is converted into a defect electric signal, a signal reflecting the defect can be obtained through the probe, and therefore the defect is judged and processed.
The magnetic leakage flaw detector body generally comprises a feeding part, a discharging part, a plurality of transmission seats distributed at intervals, a magnetizer, a host machine with a magnetic leakage probe arranged inside, a demagnetizer and a control room.
At present, clamping mechanism is all installed on transmission seat, namely, the upper portion of driving device, to avoid being detected the drilling rod and bounce or offset from top to bottom, influence testing process and testing result, for example, publication number is CN202735305U, the utility model patent of name "oil jacket pipe magnetic leakage defectoscope" just contains the clamping roller that a slant set up among the utility model patent, but the clamping roller that this kind of slant set up exists can produce more sliding friction's problem with being detected the drilling rod, and the reason that this kind of sliding friction produced lies in the rotation of drilling rod and the compound direction of motion that the direction of advance constitutes and the inclination of clamping roller must have the error angle, this kind of error angle can only reduce, can't stop, consequently, urgent need a drilling rod magnetic leakage defectoscope in the market and solve these problems with clamping mechanism.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a clamping mechanism for drilling rod magnetic leakage flaw detector to the clamping mechanism of the magnetic leakage flaw detector who provides in solving above-mentioned background art can produce more sliding friction's problem with being detected the drilling rod.
In order to achieve the above object, the utility model provides a following technical scheme: a clamping mechanism for a drill rod magnetic flux leakage flaw detector comprises a transmission seat, a clamping device and a driving mechanism, wherein the transmission seat comprises a base and a frame body, the clamping device is arranged at the upper part of the frame body, the driving mechanism is arranged at the upper end of the base, and a first cross rod and a second cross rod are arranged at the upper part of the frame body; the clamping device comprises a transmission part and a clamping part, wherein the transmission part comprises a motor, a driving gear, a shaft, a driven gear, a cam, a guide rod, a lifting plate and a return spring, and the clamping part comprises a damping spring, a clamping wheel carrier and a bull's eye universal wheel.
Preferably, the support body comprises the roof on top and the curb plate of both sides, motor fixed mounting is in the upper end of the roof of support body, the middle part of roof is provided with the opening, the driving gear is connected with the transmission shaft transmission of motor, the latter half of driving gear passes the opening, horizontal pole one and horizontal pole two are located the below of the lower extreme of driving gear, the both ends of horizontal pole one and the both ends of horizontal pole two are respectively with two curb plate perpendicular and fixed connection, horizontal pole one and horizontal pole two are parallel and equal height, horizontal pole one all sets up porosely with the middle part of the just right one side of horizontal pole two, the both ends of axle respectively with horizontal pole one with horizontal pole two on hole swing joint, the center of driven gear and cam respectively with axle fixed connection, driven.
Preferably, the lifting plate is arranged below the first cross rod and the second cross rod, guide rods perpendicular to the lifting plate are arranged at four corners of the upper end of the lifting plate respectively, the two guide rods penetrate through the cross rods and are connected with the first cross rod in a sliding mode, the other two guide rods penetrate through the second cross rod and are connected with the second cross rod in a sliding mode, a reset spring is arranged on the periphery of each guide rod, the lower end of the reset spring is fixedly connected with the lifting plate, the upper end of the reset spring close to the first cross rod is fixedly connected with the first cross rod, and the upper end of the reset spring close to the second cross rod is fixedly connected with the second cross.
Preferably, a clamping wheel carrier is arranged below the lifting plate, a plurality of damping springs are arranged between the lifting plate and the clamping wheel carrier, the upper ends of the damping springs are fixedly connected with the lifting plate, the lower ends of the damping springs are fixedly connected with the clamping wheel carrier, and the clamping wheel carrier is positioned right above the driving mechanism.
Preferably, the lower ends of the two sides of the clamping wheel frame are respectively provided with a bull's eye universal wheel, the fixing part of the bull's eye universal wheel is fixedly connected with the clamping wheel frame, and the ball port of the bull's eye universal wheel inclines towards the driving mechanism.
Preferably, when the lifting plate is located at the lowest point of the movement stroke, the extension line of the shaft axis of the ball opening of the bull's eye universal wheel is intersected with the shaft axis of the drill rod to be tested.
Compared with the prior art, the beneficial effects of the utility model are that:
this clamping mechanism for drilling rod magnetic leakage flaw detector has used the bull's eye universal wheel as the pinch roller, and the bull's eye universal wheel is completely driven, no matter compound to any direction of the compound motion of radial rotation and the axial forward of survey drilling rod, the bull's eye universal wheel all can move in its compound motion direction, thereby will be surveyed the sliding friction between drilling rod and the clamping mechanism and reduced to the minimum, the clamping mechanism of having solved the magnetic leakage flaw detector can produce more sliding friction's problem with being detected the drilling rod, this clamping mechanism for drilling rod magnetic leakage flaw detector can effectively reduce the damage of energy loss and equipment and drilling rod, the operating mass that the magnetic leakage was detected a flaw has been improved, the life of magnetic leakage flaw detector has been prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the present invention mounted on the transmission base in an operating state;
fig. 3 is a partial cross-sectional view of the side viewing angle of fig. 2.
In the figure: 10. a transmission seat; 11. a base; 12. a frame body; 13. a first cross bar; 14. a second cross bar; 20. a clamping device; 21. a motor; 22. a driving gear; 23. a driven gear; 24. a cam; 25. a shaft; 26. a guide bar; 27. a lifting plate; 2701. a return spring; 28. a damping spring; 29. clamping the wheel carrier; 30. a bull's eye universal wheel; 4. a drive mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: a clamping mechanism for a drill rod magnetic leakage flaw detector comprises a transmission seat 10, a clamping device 20 and a driving mechanism 4, wherein the transmission seat 10 comprises a base 11 and a frame body 12, the clamping device 20 is arranged at the upper part of the frame body 12, the driving mechanism 4 is arranged at the upper end of the base 11, and a first cross rod 13 and a second cross rod 14 are arranged at the upper part of the frame body 12; the clamping device 20 comprises a transmission part and a clamping part, wherein the transmission part comprises a motor 21, a driving gear 22, a shaft 25, a driven gear 23, a cam 24, a guide rod 26, a lifting plate 27 and a return spring 2701, the motor 21 is a servo motor or a stepping motor, a Siemens V90-0441AF type servo motor can be particularly used, and the clamping part comprises a damping spring 28, a clamping wheel frame 29 and a bull's eye universal wheel 30.
Further, the frame body 12 is composed of a top plate at the top end and side plates at two sides, the motor 21 is fixedly installed at the upper end of the top plate of the frame body 12, an opening is formed in the middle of the top plate, the driving gear 22 is in transmission connection with a transmission shaft of the motor 21, the lower half portion of the driving gear 22 penetrates through the opening, the first cross rod 13 and the second cross rod 14 are located below the lower end of the driving gear 22, two ends of the first cross rod 13 and two ends of the second cross rod 14 are respectively perpendicular to and fixedly connected with the two side plates, the first cross rod 13 and the second cross rod 14 are parallel and equal in height, a hole is formed in the middle of one side, opposite to the first cross rod 13 and the second cross rod, the movable connection can be realized by a bearing, the centers of the driven gear 23 and the cam 24 are respectively fixedly connected with a shaft 25, such as welding or spline, and the driven gear 23 is in transmission connection with the driving gear 22.
Further, a lifting plate 27 is arranged below the first cross bar 13 and the second cross bar 14, four corners of the upper end of the lifting plate 27 are respectively provided with a guide rod 26 perpendicular to the lifting plate 27, wherein two guide rods 26 penetrate through the first cross bar 13 and are in sliding connection with the first cross bar 13, the other two guide rods 26 penetrate through the second cross bar 14 and are in sliding connection with the second cross bar 14, a return spring 2701 is arranged on the periphery of each guide rod 26, the lower end of the return spring 2701 is fixedly connected with the lifting plate 27, the upper end of the return spring 2701 close to the first cross bar 13 is fixedly connected with the first cross bar 13, and the upper end of the return spring 2701 close to the second cross bar 14 is fixedly connected with the second cross bar 14.
Further, a clamping wheel carrier 29 is arranged below the lifting plate 27, a plurality of damping springs 28 are arranged between the lifting plate 27 and the clamping wheel carrier 29, for example, one damping spring 28 is arranged at each of 4 corners, or six damping springs 28 are distributed according to six vertexes of an inscribed regular hexagon of a circle with the center of the lifting plate 27 as a center, 20 damping springs 28 can also be densely arranged in a rectangular array of 4X5, the upper ends of the damping springs 28 are fixedly connected with the lifting plate 27, the lower ends of the damping springs 28 are fixedly connected with the clamping wheel carrier 29, and the clamping wheel carrier 29 is positioned right above the driving mechanism 4.
Further, the lower ends of the two sides of the clamping wheel frame 29 are respectively provided with a bull's eye universal wheel 30, the fixed part of the bull's eye universal wheel 30 is fixedly connected with the clamping wheel frame 29, and the ball port of the bull's eye universal wheel 30 inclines towards the driving mechanism 4; the bull-eye universal wheel 30 is of a type common in the market, has various sizes and models, can be selected to a proper size, and preferably has a ball diameter of 50 mm.
Further, when the lifting plate 27 is located at the lowest point of the movement stroke, the extension line of the shaft axis of the ball port of the bull's eye universal wheel 30 intersects with the shaft axis of the drill rod to be measured.
The working principle is as follows: when the drill rod testing device is used, the driving mechanism 4 operates, the motor 21 does not operate, the lifting plate 27 is located at the highest point of the movement stroke, when a tested drill rod passes through the transmission seat 10, the tested drill rod is driven by the driving mechanism 4 to rotate in the radial direction and move in a single direction along the axial direction, the motor 21 operates, the driving gear 22 drives the driven gear 23 to rotate, the driven gear 23 drives the shaft 25 and drives the cam 24 to rotate, when the lifting plate 27 is located at the lowest point of the movement stroke, the motor 21 stops, the two bull-eye universal wheels 30 press the tested drill rod to realize clamping, the balls of the bull-eye universal wheels 30 move in the composite movement direction under the driving of the tested drill rod to generate rolling friction which is much smaller than sliding friction, when the tested drill rod leaves the transmission seat 10, the motor 21 operates, the lifting plate 27 is driven to the highest point of the movement stroke.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a clamping mechanism for drilling rod magnetic leakage flaw detector, includes driving seat (10), clamping device (20) and actuating mechanism (4), and driving seat (10) include base (11) and support body (12), and clamping device (20) set up in the upper portion of support body (12), and actuating mechanism (4) set up in the upper end of base (11), its characterized in that: a first cross bar (13) and a second cross bar (14) are arranged at the upper part of the frame body (12); the clamping device (20) comprises a transmission part and a clamping part, wherein the transmission part comprises a motor (21), a driving gear (22), a shaft (25), a driven gear (23), a cam (24), a guide rod (26), a lifting plate (27) and a return spring (2701), and the clamping part comprises a damping spring (28), a clamping wheel frame (29) and a bull's eye universal wheel (30).
2. The clamping mechanism for the drill rod flux leakage flaw detector of claim 1, characterized in that: the rack body (12) is composed of a top plate at the top end and side plates at two sides, a motor (21) is fixedly arranged at the upper end of the top plate of the rack body (12), an opening is formed in the middle of the top plate, a driving gear (22) is in transmission connection with a transmission shaft of the motor (21), the lower half portion of the driving gear (22) penetrates through the opening, a first cross rod (13) and a second cross rod (14) are located below the lower end of the driving gear (22), two ends of the first cross rod (13) and two ends of the second cross rod (14) are respectively perpendicular to and fixedly connected with the two side plates, the first cross rod (13) and the second cross rod (14) are parallel and equal in height, holes are formed in the middle of one side, right opposite to the first cross rod (13) and the second cross rod (14), two ends of a shaft (25) are respectively movably connected with the holes in the first cross rod (13) and the second cross rod, the driven gear (23) is in transmission connection with the driving gear (22).
3. The clamping mechanism for the drill rod flux leakage flaw detector of claim 2, characterized in that: lifting plates (27) are arranged below the first cross rod (13) and the second cross rod (14), four corners of the upper end of each lifting plate (27) are respectively provided with a guide rod (26) perpendicular to the lifting plates (27), two guide rods (26) penetrate through the first cross rod (13) and are in sliding connection with the first cross rod (13), the other two guide rods (26) penetrate through the second cross rod (14) and are in sliding connection with the second cross rod (14), a reset spring (2701) is arranged on the periphery of each guide rod (26), the lower end of each reset spring (2701) is fixedly connected with the lifting plates (27), the upper end of each reset spring (2701) close to the first cross rod (13) is fixedly connected with the first cross rod (13), and the upper end of each reset spring (2701) close to the second cross rod (14) is fixedly connected with the second cross rod (14).
4. The clamping mechanism for the drill rod flux leakage flaw detector of claim 3, characterized in that: a clamping wheel carrier (29) is arranged below the lifting plate (27), a plurality of damping springs (28) are arranged between the lifting plate (27) and the clamping wheel carrier (29), the upper ends of the damping springs (28) are fixedly connected with the lifting plate (27), the lower ends of the damping springs (28) are fixedly connected with the clamping wheel carrier (29), and the clamping wheel carrier (29) is positioned right above the driving mechanism (4).
5. The clamping mechanism for the drill rod flux leakage flaw detector of any one of claims 1 to 4, wherein: the lower ends of two sides of the clamping wheel frame (29) are respectively provided with a bull's eye universal wheel (30), the fixing part of the bull's eye universal wheel (30) is fixedly connected with the clamping wheel frame (29), and the ball port of the bull's eye universal wheel (30) inclines towards the driving mechanism (4).
6. The clamping mechanism for the drill rod flux leakage flaw detector of claim 5, wherein: when the lifting plate (27) is positioned at the lowest point of the motion stroke, the extension line of the shaft axis of the ball opening of the bull eye universal wheel (30) is intersected with the shaft axis of the drill rod to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921190876.1U CN211978752U (en) | 2019-07-26 | 2019-07-26 | Clamping mechanism for drill rod magnetic leakage flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921190876.1U CN211978752U (en) | 2019-07-26 | 2019-07-26 | Clamping mechanism for drill rod magnetic leakage flaw detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211978752U true CN211978752U (en) | 2020-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921190876.1U Expired - Fee Related CN211978752U (en) | 2019-07-26 | 2019-07-26 | Clamping mechanism for drill rod magnetic leakage flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211978752U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514537A (en) * | 2021-09-02 | 2021-10-19 | 安庆市安科精机有限责任公司 | Sucker rod magnetic flux leakage flaw detector and use method thereof |
| CN114199909A (en) * | 2021-11-15 | 2022-03-18 | 深圳市兴安科检测技术有限公司 | Pipeline outer wall flaw detection device and application method thereof |
-
2019
- 2019-07-26 CN CN201921190876.1U patent/CN211978752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514537A (en) * | 2021-09-02 | 2021-10-19 | 安庆市安科精机有限责任公司 | Sucker rod magnetic flux leakage flaw detector and use method thereof |
| CN114199909A (en) * | 2021-11-15 | 2022-03-18 | 深圳市兴安科检测技术有限公司 | Pipeline outer wall flaw detection device and application method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 Termination date: 20210726 |