CN219224694U

CN219224694U - Small-pipe-diameter sensor fixing device

Info

Publication number: CN219224694U
Application number: CN202223608518.2U
Authority: CN
Inventors: 王志勇; 潘猛; 董子萱; 徐乐平; 田小玉
Original assignee: Tianke Terry Testing Tianjin Co ltd
Current assignee: Tianke Terry Testing Tianjin Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-20
Anticipated expiration: 2032-12-31

Abstract

The utility model discloses a small-pipe-diameter sensor fixing device, and mainly relates to the field of nondestructive detection. Including two relative symmetry setting's fan annular mounting panel, be equipped with the installation cover that is used for settling the probe between the mounting panel, be equipped with a plurality of sliding plates along its radial slip between the mounting panel, be equipped with the rack on the terminal surface of one side of sliding plate, rotatable installs the pivot on the mounting panel, install the torsional spring in the pivot and with rack-engaged gear, the rotatable pinch roller of installing of inner of sliding plate, the axial of pinch roller is parallel with the axial of mounting panel. The utility model has the beneficial effects that: the device can be quickly disassembled and moved along the circumferential direction of the steel pipe, so that the scanning operation can be easily and stably realized.

Description

Small-pipe-diameter sensor fixing device

Technical Field

The utility model relates to the field of nondestructive testing, in particular to a small-pipe-diameter sensor fixing device.

Background

The nondestructive testing method comprises ultrasonic flaw detection. The welding line ultrasonic flaw detector can detect, position, evaluate and diagnose various defects such as cracks, welding lines, air holes, sand holes, inclusions, folds and the like in the workpiece rapidly, conveniently, without damage. However, for flaw detection of the circumferential weld joint of the welded steel pipe, after the couplant is smeared, the probe is used for detecting along the direction of the weld joint. The manual operation is difficult. For the detection of the circumferential weld of the steel pipe, a conditional part of the mechanism purchases a complex robot to climb along the pipeline to assist the detection, but the cost is too high and the disassembly and assembly with the steel pipe are complex. After the installation, the detection is completed, the detection is also required to be disassembled, the operation is more troublesome and time-consuming, and the detection is not practical.

Disclosure of Invention

The utility model aims to provide a small-pipe-diameter sensor fixing device which can be quickly disassembled and moved along the circumferential direction of a steel pipe, so that scanning operation can be easily and stably realized.

The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a little pipe diameter sensor fixing device, includes two fan annular mounting panels that set up relatively symmetrically, be equipped with the installation cover that is used for settling the probe between the mounting panel, be equipped with a plurality of along its radial gliding slide between the mounting panel, be equipped with the rack on the terminal surface of one side of slide, rotatable installs the pivot on the mounting panel, install the torsional spring in the pivot and with rack-meshed gear, the rotatable pinch roller of installing of inner of slide, the axial of pinch roller is parallel with the axial of mounting panel.

Two sliding sleeves are symmetrically arranged between the mounting plates, compression bars in sliding fit with the sliding sleeves penetrate through the sliding sleeves, the number of the sliding plates is 4, the sliding plates are symmetrically arranged on two sides of the compression bars, annular grooves are formed in the middle of the gears, ropes are wound in the annular grooves, and the tail ends of the ropes are fixed at the inner ends of the compression bars.

The outer end of the compression bar is provided with a pressing block, a compression spring is sleeved outside the compression bar, and two ends of the compression spring respectively lean against between the pressing block and the sliding sleeve.

The inner end of the compression bar is positioned between the two mounting plates, a T-shaped frame is arranged at the inner end of the compression bar, hanging rods are respectively fixed at two ends of the T-shaped frame, and the tail ends of the ropes are fixed on the hanging rods of the T-shaped frame.

The mounting sleeve is provided with a mounting hole, and the axial direction of the mounting hole is radially consistent with that of the mounting plate.

One side of the mounting plate is provided with a sector notch, and the compression bar is arranged in bilateral symmetry relative to the sector notch.

The inboard of mounting panel is equipped with the spout, the both sides side of slide respectively with spout sliding fit.

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

through the gear with the torsional spring, the elastic force that makes the slide have to gather together to the mounting bracket axis direction is obtained to make a plurality of pinch rollers can gather together inwards relatively the mounting panel is coaxial, obtain the balanced centre gripping of treating the steel pipe wall of survey and oppression effect, and the rotation of pinch roller is convenient for the circumference of this device remove, holds up this device and removes along round the welding seam when so the operation, can detect.

Drawings

Fig. 1 is a schematic diagram of the present utility model.

Fig. 2 is a schematic top view of the present utility model.

Fig. 3 is a schematic diagram of embodiment 1 of the present utility model.

Fig. 4 is a schematic view of the internal structure (in-pushing rod state) of embodiment 1 of the present utility model.

Fig. 5 is a schematic view showing a partial structure of the cooperation of the pressing lever and the slide plate (in-pushing rod state) according to embodiment 1 of the present utility model.

Fig. 6 is a schematic view of the partial structure of the cooperation of the compression bar and the slide plate (unstressed state) according to embodiment 1 of the present utility model.

The reference numbers shown in the drawings:

1. a mounting plate; 2. a mounting sleeve; 3. a mounting hole; 4. a sliding sleeve; 5. a compression bar; 6. briquetting; 7. a compression spring; 8. a T-shaped frame; 9. a slide plate; 10. a rotating shaft; 11. a gear; 12. a rack; 13. an annular groove; 14. a pinch roller; 15. a chute; 16. a rope.

Detailed Description

The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the utility model, and such equivalents are intended to fall within the scope of the utility model as defined herein.

The instruments, reagents, materials, etc. used in the examples described below are conventional instruments, reagents, materials, etc. known in the art, and are commercially available. The experimental methods, detection methods, and the like in the examples described below are conventional experimental methods, detection methods, and the like that are known in the prior art unless otherwise specified.

Examples: small-pipe-diameter sensor fixing device

For the detection of the circumferential weld of the steel pipe, a conditional part of the mechanism purchases a complex robot to climb along the pipeline to assist the detection, but the cost is too high and the disassembly and assembly with the steel pipe are complex. After the installation, the detection is completed, and the detection is also required to be disassembled, so that the operation is more troublesome and time-consuming. And is not practical.

The device is designed for circumferential walking of the steel pipe, can be quickly disassembled, and can freely walk along the circumferential direction of the steel pipe, so that convenient and stable scanning operation is realized.

The main structure comprises:

two relative symmetrical fan annular mounting plates 1 that set up, one side of mounting plate 1 is equipped with fan notch, makes it form fan annular based on this fan notch, the corresponding fan radian of mounting plate 1 is more than 180 degrees, but is less than 270 degrees, can realize the centre gripping in the steel pipe both sides after the breach position card goes into the steel pipe.

Two mounting sleeves 2 are fixed between the two mounting plates 1, mounting holes 3 are correspondingly penetrated on the mounting sleeves 2 corresponding to the warp threads of the mounting plates 1, probes are fixed in the mounting holes 3, and auxiliary probes such as lining cloth, gaskets and the like can be used for fixing the probes, so that the inner end emitting surface of the probes contacts a target area coated with a coupling agent.

The two sides of the mounting plate 1 are symmetrically provided with sliding sleeves 4, the sliding sleeves 4 are symmetrically arranged relative to the sector gaps of the mounting plate 1, a compression bar 5 is slidably matched in the sliding sleeves 4, and the length direction and the sliding stroke of the compression bar 5 correspond to the radial direction of the mounting plate 1. And the axes of the two compression bars 5 are collinear based on the symmetrical sliding sleeve 4.

The outer end of the compression bar 5 is provided with a pressing block 6, so that the compression bar 5 is conveniently pressed in, and the radial expansion and contraction of the compression bar 5 relative to the mounting plate 1 are conveniently controlled.

The compression spring 7 is sleeved outside the compression rod 5, and two ends of the compression spring 7 respectively lean against between the pressing block 6 and the sliding sleeve 4, so that the compression rod 5 has elastic force far away from the mounting plate 1.

The inner end of the compression bar 5 is positioned between the two mounting plates 1, the inner end of the compression bar 5 is provided with a T-shaped frame 8, and hanging bars are respectively fixed at two ends of the T-shaped frame 8.

The two sides of the compression bar 5 are symmetrically provided with sliding plates 9, the sliding travel direction of the sliding plates 9 corresponds to the radial direction of the mounting plates 1, the width of each sliding plate 9 corresponds to the distance between the two mounting plates 1, the inner side of each mounting plate 1 is provided with a sliding groove 15, and the two side edges of each sliding plate 9 are respectively in sliding fit with the corresponding sliding grooves 15.

The two sides of the compression bar 5 are symmetrically provided with a rotating shaft 10 which is rotationally connected with the mounting plate 1, the rotating shaft 10 is positioned between the sliding plate 9 and the compression bar 5, the rotating shaft 10 is provided with a gear 11, one side end surface of the sliding plate 9, which is close to the compression bar 5, is provided with a rack 12, the rack 12 is meshed with the gear 11, the middle part of the gear 11 is provided with an annular groove 13, an I-shaped structure of a wire coil is naturally formed through the gear 11, the annular groove 13 is wound with a rope 16, and the tail end of the rope 16 is fixed on a hanging rod of the T-shaped frame 8. The torsion spring is installed on the rotating shaft 10, which can have a torsion resetting effect and automatically maintain the winding state of the rope 16.

By pressing the pressing rod 5 inwards, the T-shaped frame 8 can move inwards, the rope 16 wound in the annular groove 13 is pulled out, after the pressing block 6 is loosened, the pressing rod 5 is restored to an outwards extending state, the T-shaped frame 8 is close to the gear 11, and the rope 16 is naturally wound back into the annular groove 13.

When the rope 16 is pulled out, the gear 11 is driven to rotate towards the direction of the compression bar 5 along with the pulling of the rope 16, and the rack 12 and the sliding plate 9 are driven to slide outwards, so that the pressing block 6 is pressed, and the sliding plate 9 moves outwards.

The inner end of the sliding plate 9 is provided with a spool, the spool is rotatably provided with a pinch roller 14, and the axial direction of the pinch roller 14 is parallel to the axial direction of the mounting plate 1. Can press on the outer wall of the steel pipe and roll along with the circumferential direction of the outer wall of the steel pipe.

The use method of the device is that the probe is roughly fixed in the mounting sleeve 2,

then, the pressing block 6 is pressed inwards (pushed inwards) to enable the pressing rod 5 to retract into the mounting plate 1, the T-shaped frame 8 at the inner end of the pressing rod 5 is pulled inwards to pull out the rope 16, the sliding plate 9 is driven to move outwards to enable the pressing wheels 14 to be outwards withdrawn, after a steel pipe enters between the pressing wheels 14 at the two sides from the sector gaps, the pressing block 6 is loosened, the 4 pressing wheels 14 are clamped on the steel pipe wall coaxially inwards relative to the mounting plate 1, and the inward pressure on the steel pipe wall is kept under the action of the coil spring, so that the steel pipe can walk along the peripheral surface of the steel pipe. At the moment, the probe is accurately fixed inwards, so that the device can be held to move around the welding line for detection.

Claims

1. The utility model provides a little pipe diameter sensor fixing device, its characterized in that, including two fan annular mounting panels that set up relatively symmetrically, be equipped with the installation cover that is used for settling the probe between the mounting panel, be equipped with a plurality of sliding plates along its radial between the mounting panel, be equipped with the rack on the terminal surface of one side of sliding plate, rotatable installs the pivot on the mounting panel, install torsional spring and with rack-meshed gear in the pivot, the rotatable pinch roller of installing of inner of sliding plate, the axial of pinch roller is parallel with the axial of mounting panel.

2. The small-pipe-diameter sensor fixing device according to claim 1, wherein two sliding sleeves are symmetrically arranged between two mounting plates, compression rods in sliding fit with the sliding sleeves penetrate through the sliding sleeves, the number of the sliding plates is 4, the sliding plates are symmetrically arranged on two sides of the compression rods, annular grooves are formed in the middle of the gear, ropes are wound in the annular grooves, and the tail ends of the ropes are fixed at the inner ends of the compression rods.

3. The small-pipe-diameter sensor fixing device according to claim 2, wherein a pressing block is arranged at the outer end of the pressing rod, a compression spring is sleeved outside the pressing rod, and two ends of the compression spring respectively lean against between the pressing block and the sliding sleeve.

4. The small-pipe-diameter sensor fixing device according to claim 2, wherein the inner end of the pressure rod is located between the two mounting plates, a T-shaped frame is arranged at the inner end of the pressure rod, hanging rods are respectively fixed at two ends of the T-shaped frame, and the tail ends of the ropes are fixed on the hanging rods of the T-shaped frame.

5. The small-pipe-diameter sensor fixing device according to claim 1, wherein the mounting sleeve is provided with a mounting hole, and the axial direction of the mounting hole is radially consistent with that of the mounting plate.

6. The small-pipe-diameter sensor fixing device according to claim 2, wherein a fan-shaped notch is formed in one side of the mounting plate, and the compression rod is symmetrically arranged relative to the fan-shaped notch.

7. The small-pipe-diameter sensor fixing device according to claim 1, wherein a sliding groove is formed in the inner side of the mounting plate, and two side edges of the sliding plate are respectively in sliding fit with the sliding groove.