阅读说明：本技术 一种管道内超声波信号检测裂纹装置 (Ultrasonic signal detects crackle device in pipeline ) 是由 金杭飞 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种管道内超声波信号检测裂纹装置,包括控制装置、驱动电机、传动机构、支架、轮子以及检测机构；控制装置固定在支架上且支架上固定有驱动电机,驱动电机驱动转动设置在支架上的传动机构转动；传动机构的数量为多个且对称分布在驱动电机的外围；位于轮子一侧的支架上还设置有检测机构且检测机构与控制装置电性连接。该管道内超声波信号检测裂纹装置通过设置连接轴机构,能够将轮子牢牢贴合在被测管道内壁,从而便于对不同大小管道进行测量；通过设置检测机构,能够使超声波探头牢牢贴合在被测管道内壁,检测结果更加准确。(The invention discloses a device for detecting cracks by ultrasonic signals in a pipeline, which comprises a control device, a driving motor, a transmission mechanism, a bracket, wheels and a detection mechanism, wherein the control device is connected with the driving motor; the control device is fixed on the bracket, a driving motor is fixed on the bracket, and the driving motor drives a transmission mechanism which is rotationally arranged on the bracket to rotate; the number of the transmission mechanisms is multiple and the transmission mechanisms are symmetrically distributed on the periphery of the driving motor; the bracket positioned on one side of the wheel is also provided with a detection mechanism, and the detection mechanism is electrically connected with the control device. The ultrasonic signal crack detection device in the pipeline can firmly attach the wheels to the inner wall of the pipeline to be detected by arranging the connecting shaft mechanism, so that the pipelines with different sizes can be conveniently measured; through setting up detection mechanism, can make ultrasonic transducer firmly laminate at the pipeline inner wall of being surveyed, the testing result is more accurate.)

1. The ultrasonic signal crack detection device in the pipeline is characterized by comprising a control device, a driving motor, a transmission mechanism, a bracket (2), wheels (12) and a detection mechanism; the control device is fixed on the support (2), a driving motor is fixed on the support (2), and the driving motor is electrically connected with the control device; the driving motor drives the transmission mechanism which is rotationally arranged on the bracket (2) to rotate; the number of the transmission mechanisms is multiple and the transmission mechanisms are symmetrically distributed on the periphery of the driving motor; the transmission mechanism drives the wheels (12) positioned on the outer side of the bracket (2) to rotate; the support (2) positioned on one side of the wheel (12) is also provided with a detection mechanism, and the detection mechanism is electrically connected with the control device.

2. The ultrasonic signal crack detection device in the pipeline according to claim 1, wherein the transmission mechanism comprises a first bevel gear (3), a connecting shaft mechanism, a second bevel gear (5), a third bevel gear (9), a fourth bevel gear (10) and a third rotating shaft (11); the first bevel gear (1) is fixed at the rotating end of the driving motor, and the first bevel gear (1) is positioned at the center of the bracket (2); a second bevel gear (5) is meshed with the first bevel gear (1), and a connecting shaft mechanism is fixed at one end of the second bevel gear (5); the connecting shaft mechanism is rotatably arranged on the bracket (2), and a third bevel gear (9) is fixed at the other end of the connecting shaft mechanism; a fourth bevel gear (10) is meshed with one side of the third bevel gear (9), and the fourth bevel gear (10) is fixed on a third rotating shaft (11); the third rotating shaft (11) is rotatably arranged on the bracket (2); and wheels (12) are fixed on a third rotating shaft (11) positioned on the outer side of the bracket (2).

3. The ultrasonic signal crack detection device in the pipeline according to claim 2, wherein the connecting shaft mechanism comprises a first rotating shaft (4), a telescopic rod (6), a first spring (7) and a second rotating shaft (8); the first rotating shaft (4) is rotatably arranged on the bracket (2), one end of the first rotating shaft (4) is fixed with the second bevel gear (5), and the other end of the first rotating shaft is fixed with one end of the telescopic rod (6); a second rotating shaft (8) is fixed at the other end of the telescopic rod (6), and a first spring (7) surrounds the telescopic rod (6); the second rotating shaft (8) rotates and penetrates through the support (2), and a third bevel gear (9) is fixed on one side, away from the telescopic rod (6), of the second rotating shaft (8); the third rotating shaft (11) is rotatably and slidably arranged in the bracket (2).

4. An ultrasonic in-pipe signal crack detection device as claimed in claim 3, characterized in that the wheels (12) are symmetrically arranged on both sides of the single third rotation axis (11).

5. The apparatus for detecting cracks by ultrasonic signals in pipes according to claim 1, wherein the detecting mechanism comprises a sliding groove (13), a second spring (14) and an ultrasonic probe (15); the bracket (2) is provided with a sliding groove (13), and an ultrasonic probe (15) is arranged in the sliding groove (13) in a sliding manner; the bottom of the ultrasonic probe (15) is connected with the sliding groove (13) through a second spring (14); the ultrasonic probe (15) is electrically connected with the control device; the bottom of the ultrasonic probe (15) is provided with an outward annular bulge, and the right side of the sliding groove (13) is provided with an inward annular bulge; the outer diameter of the annular bulge at the bottom of the ultrasonic probe (15) is larger than the inner diameter of the annular bulge of the sliding groove (13).

6. An ultrasonic in-pipe signal crack detection device as claimed in claim 4, characterized in that the wheel (12) comprises a support bar (17), an outer wheel (18) and a guard ring (19); a support rod (17) is symmetrically fixed on the outer side of the third rotating shaft (11); outer wheels (18) are fixed on the outer sides of the support rods (17); a protective ring (19) is fixed on the outer side of the outer wheel (18); the material of the protective ring (19) is rubber.

7. the apparatus for detecting cracks by ultrasonic signals in pipelines according to claim 5, wherein the outside of the ultrasonic probe (15) is wrapped with a protective sleeve head (16).

Technical Field

The invention relates to a crack detection device, in particular to a crack detection device for ultrasonic signals in a pipeline.

Background

The pipeline needs to be detected before being used, so that the problem that the quality of the pipeline is problematic due to cracks or cavities in the pipeline is prevented, and accidents are caused during subsequent use. Most of the existing crack or cavity detection adopts ultrasonic detection, and the ultrasonic detection is a nondestructive detection method for detecting the internal defects of the material by utilizing the acoustic performance difference of the material and the defects thereof to the reflection condition of an ultrasonic propagation waveform and the energy change of the penetration time.

The internal defects of the existing ultrasonic detection pipeline need to be detected back and forth by a manual handheld instrument, so that the detection is troublesome, and the efficiency is low.

Disclosure of Invention

The invention aims to provide a crack detection device for ultrasonic signals in a pipeline, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

A device for detecting cracks by ultrasonic signals in a pipeline comprises a control device, a driving motor, a transmission mechanism, a bracket, wheels and a detection mechanism; the control device is fixed on the bracket, a driving motor is fixed on the bracket, and the driving motor is electrically connected with the control device; the driving motor drives the transmission mechanism which is rotationally arranged on the bracket to rotate; the number of the transmission mechanisms is multiple and the transmission mechanisms are symmetrically distributed on the periphery of the driving motor; the transmission mechanism drives the wheels positioned on the outer side of the bracket to rotate; and the bracket positioned on one side of the wheel is also provided with a detection mechanism, and the detection mechanism is electrically connected with the control device.

As a further scheme of the invention: the transmission mechanism comprises a first bevel gear, a connecting shaft mechanism, a second bevel gear, a third bevel gear, a fourth bevel gear and a third rotating shaft; the first bevel gear is fixed at the rotating end of the driving motor and is positioned at the center of the bracket; a second bevel gear is meshed with the first bevel gear, and a connecting shaft mechanism is fixed at one end of the second bevel gear; the connecting shaft mechanism is rotatably arranged on the bracket, and a third bevel gear is fixed at the other end of the connecting shaft mechanism; a fourth bevel gear is meshed with one side of the third bevel gear and is fixed on a third rotating shaft; the third rotating shaft is rotatably arranged on the bracket; and wheels are fixed on the third rotating shaft positioned on the outer side of the bracket.

As a still further scheme of the invention: the connecting shaft mechanism comprises a first rotating shaft, a telescopic rod, a first spring and a second rotating shaft; the first rotating shaft is rotatably arranged on the bracket, a second bevel gear is fixed at one end of the first rotating shaft, and one end of a telescopic rod is fixed at the other end of the first rotating shaft; a second rotating shaft is fixed at the other end of the telescopic rod, and a first spring is wound on the telescopic rod; the second rotating shaft rotates and penetrates through the support, and a third bevel gear is fixed on one side, away from the telescopic rod, of the second rotating shaft; the third rotating shaft is rotatably and slidably arranged in the bracket.

As a still further scheme of the invention: and wheels are symmetrically arranged on two sides of the single third rotating shaft.

As a still further scheme of the invention: the detection mechanism comprises a sliding groove, a second spring and an ultrasonic probe; the bracket is provided with a sliding groove, and the sliding groove is internally provided with an ultrasonic probe in a sliding way; the bottom of the ultrasonic probe is connected with the sliding groove through a second spring; the ultrasonic probe is electrically connected with the control device; an outward annular bulge is arranged at the bottom of the ultrasonic probe, and an inward annular bulge is arranged on the right side of the sliding groove; the outer diameter of the annular bulge at the bottom of the ultrasonic probe is larger than the inner diameter of the annular bulge of the sliding groove.

As a still further scheme of the invention: the wheel comprises a support rod, an outer wheel and a protection ring; a support rod is symmetrically fixed on the outer side of the third rotating shaft; outer wheels are fixed on the outer sides of the support rods; a protective ring is fixed on the outer side of the outer wheel; the material of the protective ring is rubber.

As a still further scheme of the invention: the outer side of the ultrasonic probe is wrapped with a protective sleeve head.

Compared with the prior art, the invention has the beneficial effects that: by arranging the connecting shaft mechanism, the wheels can be firmly attached to the inner wall of the pipeline to be measured, so that the pipelines with different sizes can be conveniently measured; by arranging the detection mechanism, the ultrasonic probe can be firmly attached to the inner wall of the detected pipeline, and the detection result is more accurate; through setting up a plurality of drive mechanism, the device removes more stably in the pipeline that is surveyed during can.

Drawings

Fig. 1 is a schematic structural diagram of a crack detection device for ultrasonic signals in a pipeline.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic structural diagram of a wheel in the ultrasonic signal crack detection device in the pipeline.

In the figure: 1-a measured pipeline, 2-a bracket, 3-a first bevel gear, 4-a first rotating shaft, 5-a second bevel gear, 6-a telescopic rod, 7-a first spring, 8-a second rotating shaft, 9-a third bevel gear, 10-a fourth bevel gear, 11-a third rotating shaft, 12-a wheel, 13-a sliding groove, 14-a second spring, 15-an ultrasonic probe, 16-a protective sleeve head, 17-a supporting rod, 18-an outer wheel and 19-a protective ring.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to specific embodiments.