CN210442305U

CN210442305U - Avoidance device for drill rod magnetic leakage flaw detector

Info

Publication number: CN210442305U
Application number: CN201921191130.2U
Authority: CN
Inventors: 吴春学; 吴国标; 赵齐兵; 杨善利
Original assignee: Anqing Anke Fine Mechanics Co ltd
Current assignee: Anqing Anke Fine Mechanics Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-05-01
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a drilling rod magnetic leakage flaw detector is with dodging device relates to magnetic leakage flaw detector technical field, does not possess the device of dodging for the clamping mechanism who solves current drilling rod magnetic leakage flaw detector, the problem that blocks easily when meetting substandard steel pipe irregular position. Including the fly leaf, the fixed handle is installed to the top of fly leaf, the support is installed to the below of fly leaf, and the support is provided with two, the inside of support is provided with dodges the chamber, two install tight pulley between the support, the inside of tight pulley is provided with the connecting rod, and the both ends of connecting rod all run through and extend to dodge the inside in chamber, the bearing is all installed at the both ends of connecting rod, the top of bearing is installed and is dodged the spring, the one side of dodging the chamber is provided with the observation window, the opposite side of dodging the chamber is provided with the spout.

Description

Avoidance device for drill rod magnetic leakage flaw detector

Technical Field

The utility model relates to a magnetic leakage flaw detector technical field specifically is a device is dodged to drilling rod magnetic leakage flaw detector machine.

Background

The magnetic particle inspection method can detect small defects which are exposed on the surface and cannot be directly observed by naked eyes or by means of a magnifying glass, and can also detect near-surface defects which are not exposed on the surface and are buried below the surface by a few millimeters. The flaw detection principle is that when the ferromagnetic steel pipe is magnetized fully, the magnetic lines of force in the pipe wall are blocked by the defects on the surface or near the surface of the ferromagnetic steel pipe, the magnetic lines of force at the defects are distorted, and a part of the magnetic lines of force leak out of the inner surface and the outer surface of the ferromagnetic steel pipe to form a leakage magnetic field. 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. When the leakage magnetic field is picked up by the detecting element which is positioned on the surface of the steel pipe and moves relative to the steel pipe and is converted into a defect electric signal, a signal reflecting the defect can be obtained through the probe, so that the defect is judged and processed, and the flaw detection sensitivity is reduced along with the increase of the wall thickness from the outer surface to the inner surface of the steel pipe with the outer surface of the steel pipe as the highest. In order to ensure that the steel pipe can smoothly advance during detection, a clamping mechanism is usually adopted to keep the running stability of the steel pipe.

However, the clamping mechanism of the existing drill rod magnetic flux leakage flaw detector is not provided with an avoidance device, and is easy to clamp when the defective steel pipe is in an irregular position; therefore, the existing requirements are not met, and the avoidance device for the drill rod magnetic leakage flaw detector is provided for the existing requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device is dodged with to drilling rod magnetic leakage defectoscope to the clamping mechanism of the current drilling rod magnetic leakage defectoscope who proposes in solving above-mentioned background does not possess and dodges the device, the problem of blocking easily when meetting substandard product steel pipe irregular position.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drilling rod magnetic leakage flaw detector is with dodging device, includes the fly leaf, the fixed handle is installed to the top of fly leaf, the support is installed to the below of fly leaf, and the support is provided with two, the inside of support is provided with dodges the chamber, two install the tight wheel of clamp between the support, the inside of tight wheel of clamp is provided with the connecting rod, and the both ends of connecting rod all run through and extend to the inside of dodging the chamber, the bearing is all installed at the both ends of connecting rod, the top of bearing is installed and is dodged the spring, the one side of dodging the chamber is provided with the observation window, the opposite side of.

Preferably, spring fixing seats are installed at two ends of the avoiding spring, and the two ends of the avoiding spring are respectively and fixedly connected with the bearing and the inner wall of the avoiding cavity through the spring fixing seats.

Preferably, the inside of dodging the spring is provided with the ejector pin, and the one end and the spring fixing base fixed connection of ejector pin.

Preferably, a transparent cover plate is arranged on the outer wall of the observation window, a hinge mechanism is arranged at one end of the transparent cover plate, the transparent cover plate is rotatably connected with the outer wall of the support through the hinge mechanism, and a buckle is arranged at the other end of the transparent cover plate.

Preferably, the inside of the bearing is provided with twelve balls, and the balls are fixedly connected with the bearing through the retainer.

Preferably, the outer wall of the clamping wheel is provided with a rubber sleeve, and the rubber sleeve is in interference fit with the clamping wheel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a spring is dodged in the setting, there is partial wastrel because of the steel pipe that magnetic leakage flaw detector detected, there is irregular arch on the outer wall, when steel pipe bulge is through the pinch roller, dodge the spring and can drive the pinch roller shrink, make the steel pipe can pass through smoothly, avoid the phenomenon of card pipe to take place, be provided with the ejector pin in dodging the spring, the ejector pin can guide to dodge the spring and dodge to the vertical direction, and can play the effect of support when dodging the spring and surpassing its extrusion bearing capacity, avoid excessive deformation can't reset, the life of spring has effectively been prolonged.

2. Through set up transparent cover on the support, and transparent cover is the folding type, and transparent cover can externally observe the working condition of dodging the spring, and when support internals need overhaul, directly the apron that turns up can go on, need not to dismantle whole support, and is convenient high-efficient.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic side view of the avoidance device of the present invention;

FIG. 3 is a schematic view of a partial structure of the bearing of the present invention;

in the figure: 1. a movable plate; 2. a fixed handle; 3. a support; 4. a pinch wheel; 5. a rubber sleeve; 6. an avoidance cavity; 7. a chute; 8. an observation window; 9. a connecting rod; 10. a transparent cover plate; 11. buckling; 12. A hinge mechanism; 13. a bearing; 131. a holder; 132. a ball bearing; 14. an avoidance spring; 15. a top rod; 16. spring fixing seat.

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: the utility model provides a drilling rod magnetic leakage flaw detector is with dodging device, including fly leaf 1, fixed handle 2 is installed to the top of fly leaf 1, fixed handle 2 can be connected with pneumatic telescoping device, drive the lift of fly leaf 1, support 3 is installed to the below of fly leaf 1, and support 3 is provided with two, the inside of support 3 is provided with dodges chamber 6, install pinch roller 4 between two supports 3, the inside of pinch roller 4 is provided with connecting rod 9, and the both ends of connecting rod 9 all run through and extend to dodge the inside in chamber 6, bearing 13 is all installed at the both ends of connecting rod 9, bearing 13's top is installed and is dodged spring 14, the one side of dodging chamber 6 is provided with observation window 8, the opposite side of dodging chamber 6 is provided with spout 7, spout 7 makes pinch roller 4 can carry out the.

Further, spring fixing seats 16 are installed at two ends of the avoidance spring 14, the two ends of the avoidance spring 14 are respectively fixedly connected with the bearing 13 and the inner wall of the avoidance cavity 6 through the spring fixing seats 16, and if irregular protrusions exist on the surface of the steel pipe, the avoidance spring 14 can drive the clamping wheel 4 to contract so that the steel pipe can pass through smoothly in the process that the clamping wheel 4 clamps the steel pipe.

Furthermore, an ejector rod 15 is arranged inside the avoiding spring 14, one end of the ejector rod 15 is fixedly connected with the spring fixing seat 16, the ejector rod 15 can guide the avoiding spring 14 to avoid in the vertical direction, and the avoiding spring 14 can play a supporting role when exceeding the extrusion bearing force of the avoiding spring, so that the avoiding spring 14 is prevented from excessively deforming and cannot be reset.

Further, be provided with transparent cover plate 10 on the outer wall of observation window 8, the one end of transparent cover plate 10 is provided with hinge mechanism 12, and transparent cover plate 10 rotates with 3 outer walls of support through hinge mechanism 12 to be connected, and the other end of transparent cover plate 10 is provided with buckle 11, and transparent cover plate 10 can externally observe dodge spring 14 behavior, and can overhaul 3 internals of support fast through the mode of turning over the apron.

Further, the inside of bearing 13 is provided with ball 132, and ball 132 is provided with twelve, and ball 132 passes through holder 131 and bearing 13 fixed connection, and bearing 13 makes when pinch roller 4 on connecting rod 9 contacts with the steel pipe, can advance along with the steel pipe and carry out corresponding rotation, avoids both hard contacts, blocks the steel pipe, and ball 132 inside bearing 13 can effectively improve its and connecting rod 9's gyration precision.

Further, be provided with gum cover 5 on the outer wall of pinch roller 4, and gum cover 5 and pinch roller 4 interference fit, the gum cover 5 of 4 outer walls of pinch roller can guarantee that the steel pipe operation is reliable, and is steady, and the noise is little, can not appear skidding and the phenomenon of card pipe.

The working principle is as follows: when the magnetic leakage flaw detector is used, the fixed handle 2 on the movable plate 1 is connected with the pneumatic telescopic device to drive the movable plate 1 to move up and down, when a steel pipe of the magnetic leakage flaw detector runs below the movable plate 1, the pneumatic telescopic device can drive the movable plate 1 to descend, so that the clamping wheel 4 below the movable plate 1 is in close contact with the outer wall of the steel pipe, the stability of the steel pipe during transportation is improved, the rubber sleeve 5 on the outer wall of the clamping wheel 4 can reduce noise generated during the running of the steel pipe and avoid slipping, due to the fact that partial defective products exist in the steel pipe detected by the magnetic leakage flaw detector, irregular protrusions exist on the outer wall, the avoidance spring 14 is installed above the bearing 13 of the clamping wheel 4, when the protrusion of the pipe wall passes through, the avoidance spring 14 can drive the clamping wheel 4 to stretch and retract, the steel pipe can pass through smoothly, the observation window 8 is arranged on the support 3 on which the, and the outer wall of the observation window 8 is provided with a folding transparent cover plate 10, and the internal parts of the bracket 3 can be quickly overhauled in a mode of folding the cover plate.

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

1. The utility model provides a drilling rod magnetic leakage flaw detector is with dodging device, includes fly leaf (1), its characterized in that: fixed handle (2) are installed to the top of fly leaf (1), support (3) are installed to the below of fly leaf (1), and support (3) are provided with two, the inside of support (3) is provided with dodges chamber (6), two install pinch roller (4) between support (3), the inside of pinch roller (4) is provided with connecting rod (9), and the both ends of connecting rod (9) all run through and extend to the inside of dodging chamber (6), bearing (13) are all installed at the both ends of connecting rod (9), spring (14) are dodged to the top of bearing (13) is installed to the top of dodging, the one side of dodging chamber (6) is provided with observation window (8), the opposite side of dodging chamber (6) is provided with spout (7).

2. The avoidance device for the drill rod magnetic leakage flaw detector according to claim 1, characterized in that: spring fixing seats (16) are installed at two ends of the avoidance spring (14), and two ends of the avoidance spring (14) are fixedly connected with the bearing (13) and the inner wall of the avoidance cavity (6) through the spring fixing seats (16) respectively.

3. The avoidance device for the drill rod magnetic leakage flaw detector according to claim 2, wherein: an ejector rod (15) is arranged inside the avoiding spring (14), and one end of the ejector rod (15) is fixedly connected with the spring fixing seat (16).

4. The avoidance device for the drill rod magnetic leakage flaw detector according to claim 1, characterized in that: be provided with transparent cover (10) on the outer wall of observation window (8), the one end of transparent cover (10) is provided with hinge mechanism (12), and transparent cover (10) rotate with support (3) outer wall through hinge mechanism (12) and be connected, the other end of transparent cover (10) is provided with buckle (11).

5. The avoidance device for the drill rod magnetic leakage flaw detector according to claim 1, characterized in that: the inside of bearing (13) is provided with ball (132), and ball (132) are provided with twelve, ball (132) pass through holder (131) and bearing (13) fixed connection.

6. The avoidance device for the drill rod magnetic leakage flaw detector according to claim 1, characterized in that: the outer wall of the clamping wheel (4) is provided with a rubber sleeve (5), and the rubber sleeve (5) is in interference fit with the clamping wheel (4).