CN-121977153-A - Hinge type multi-pipe diameter detection device

Abstract

The invention discloses a hinge type multi-pipe diameter detection device which comprises an annular frame capable of being opened and closed, a sliding seat assembly and a detection mechanism. The annular frame is formed by hinging three hinge bases (17) end to end, and can be opened and closed to be sleeved on the periphery of the pipeline. The detection mechanism is arranged on the sliding seat assembly and can move along the radial direction and the axial direction of the pipeline to drive the probe (36) to scan the outer wall of the pipeline. The variable diameter clamping mechanism is also arranged for fixing the annular rack on pipelines with different diameters. The invention has compact structure, convenient assembly and disassembly, and can adapt to various pipe diameters and realize automatic detection.

Inventors

• GE LIANG
• CHENG JIXIANG
• XIAO XIAOTING
• LI ZHIDAN
• ZHOU XIANCHENG
• TIAN GUIYUN
• ZHENG JIE
• ZHUO YONG
• ZENG WEN
• YU YATING
• ZHANG HONG
• JIANG NENGJI

Assignees

• 西南石油大学

Dates

Publication Date

20260505

Application Date

20260323

Claims (10)

1. 1. The utility model provides a hinge type multitube footpath detection device which characterized in that includes: The ring-shaped frame capable of being opened and closed is formed by hinging three arc-shaped hinge bases (17) end to end through three pins (19) and is constructed to be sleeved on the periphery of a detected pipeline, and a large gear (22) is fixed on the end face of the ring-shaped frame; The sliding seat assembly comprises a sliding base (8), wherein a pulley (25) is arranged at the bottom of the sliding base (8), and the sliding base is slidably arranged on a perforated sliding rail (23) of the annular frame through the pulley (25) and can move along the circumferential direction of a pipeline, a circumferential motor (27) is fixedly arranged on the sliding seat assembly, the output end of the circumferential motor (27) is connected with a pinion (42), and the pinion (42) is meshed with the large gear (22); The radial driving assembly is arranged on the sliding seat assembly and comprises a radial motor (3), a longitudinal beam sliding rail (5), a longitudinal beam ball screw (40) and a longitudinal beam sliding block (39), wherein the radial motor (3) drives the longitudinal beam ball screw (40) to rotate so as to drive the longitudinal beam sliding block (39) to radially move along a pipeline; The axial driving assembly is arranged on the longitudinal beam sliding block (39) and comprises an axial motor (34), a beam sliding rail (28), a beam ball screw (37) and a beam sliding block (31), wherein the axial motor (34) drives the beam ball screw (37) to rotate so as to drive the beam sliding block (31) to axially move along a pipeline; The probe mounting seat comprises a pressing sheet metal (30) and a probe sheet metal (32), and is fixed on the beam sliding block (31), and a detection surface of the probe (36) is arranged along the radial direction of the pipeline; reducing fixture, including slips (24), scale pin (7) and quick plug pin (16), scale pin (7) are installed in annular frame along radial adjustable, slips (24) set up in scale pin (7) tip to through quick plug pin (16) locking, in order to with annular frame is fixed in the pipeline periphery of different diameters.
2. 2. The hinge type multi-pipe diameter detecting device according to claim 1, wherein the three hinge bases (17) are identical in structure, and when one of the pins (19) is pulled out, the annular frame is unfolded from a closed state to an open state so as to be sleeved on the periphery of the pipe.
3. 3. The hinge type multi-path detecting device according to claim 2, wherein a ball I (11) is arranged at the bottom of each pin (19), and when the pins (19) rotate to a preset locking position, the ball I (11) is clamped into the overlapped surfaces of two adjacent hinge bases (17) to limit the relative rotation of the hinge bases (17).
4. 4. The hinge type multi-pipe diameter detection device according to claim 1, wherein the reducing clamping mechanism further comprises a T-shaped guide rail (15) and a flexible clamp assembly, the T-shaped guide rail (15) is connected with a hinge base (17) in a sliding mode through bolts, the flexible clamp assembly is fixed on the T-shaped guide rail (15), after a scale pin (7) passes through a hole of the hinge base (17) to reach a preset scale, the flexible clamp assembly is locked through a quick plug pin (16), so that a slip (24) is attached to a detected pipeline, and meanwhile the T-shaped guide rail (15) drives the flexible clamp assembly to slide and clamp the outer wall of the pipeline.
5. 5. The hinge type multi-pipe diameter detecting device according to claim 4, wherein the flexible clamp assembly comprises a flexible clamp fixing sheet metal (21), a flexible clamp base (12) and pins (18) for clamping the outer wall of the pipeline, and the pins (18) are inlaid on the flexible clamp base (12).
6. 6. The hinge type multi-path detecting device according to claim 5, wherein the pin (18) is elastically mounted on the flexible clamp base (12) through a spring, so that the pin can be attached to the rugged outer wall of the pipeline, and the pin (18) is locked through a knob on the flexible clamp base (12).
7. 7. The hinge type multi-pipe diameter detection device according to claim 5, wherein the scale pins (7), the slips (24) and the quick plug pins (16) are divided into three groups, and the outer periphery of the pipeline is clamped at 120-degree intervals along the circumferential direction.
8. 8. The hinge type multi-pipe diameter detection device according to claim 1, wherein the radial driving assembly further comprises a first longitudinal beam fixing plate (6) and a second longitudinal beam fixing plate (10), the first longitudinal beam fixing plate and the second longitudinal beam fixing plate are fixed on the longitudinal beam sliding rail (5), a longitudinal beam ball screw (40) is installed between the first longitudinal beam fixing plate (6) and the second longitudinal beam fixing plate (10), the longitudinal beam sliding rail (5) is fixed on the sliding seat assembly, and the radial motor (3) is connected with the longitudinal beam ball screw (40) through a longitudinal beam coupler (4) and is fixed on the first longitudinal beam fixing plate (6).
9. 9. The hinge type multi-path detecting device according to claim 1, wherein the axial driving assembly further comprises a beam fixing plate (35) which is installed on the beam sliding rail (28), the axial motor (34) is installed on the beam fixing plate (35) and connected with a beam ball screw (37) through a beam coupler (33), and the beam ball screw (37) and the beam sliding rail (28) are both fixed on a longitudinal beam sliding block (39).
10. 10. The hinge type multi-path detecting device according to claim 1, further comprising a controller electrically connected with the radial motor (3), the circumferential motor (27) and the axial motor (34) and used for cooperatively controlling the three motors to work cooperatively and driving the probe (36) to scan and detect along the outer wall of the pipeline.

Description

Hinge type multi-pipe diameter detection device Technical Field The invention relates to the technical field of pipeline detection, in particular to a hinge type multi-pipe diameter detection device which is suitable for detecting defects of outer walls of pipelines with different diameters in the fields of industrial production, municipal construction, energy transportation and the like. Background The pipeline has wide application in the fields of industrial production, municipal construction, energy transportation and the like, and the defect detection of corrosion, crack, scratch, uneven wall thickness and the like of the outer wall is an important link for guaranteeing the quality and safe operation of the pipeline. The existing pipeline outer wall detection device has the problems of inconvenient installation, poor adaptability and the like, the integral structure is difficult to quickly sleeve on the periphery of a pipeline, the range of the adapting pipeline of most devices is narrower, the clamping stability is insufficient, more manual assistance is needed in the detection process, and the detection efficiency is required to be improved. Aiming at the problems, the invention provides the hinge type multi-pipe diameter detection device which is reasonable in structure and convenient to use. Disclosure of Invention The invention aims to solve the technical problems that the existing pipeline outer wall detection device is inconvenient to install and poor in adaptability, and is difficult to quickly sleeve the peripheries of pipelines with different diameters and perform automatic scanning detection. In order to solve the technical problems, the invention adopts the following technical scheme: A hinge type multi-tube diameter detection device comprises an annular frame capable of being opened and closed, a sliding seat assembly, a radial driving assembly, an axial driving assembly, a probe mounting seat and a reducing clamping mechanism. The openable ring-shaped frame is formed by hinging three arc hinge bases end to end through three pins and is constructed to be sleeved on the periphery of a detected pipeline, and a large gear is fixed on the end face of the ring-shaped frame through bolts so as to ensure synchronous rotation of the large gear and the ring-shaped frame. When one of the pins is pulled out, the annular rack is unfolded from a closed state to an open state so as to be quickly sleeved on the periphery of the pipeline, and the pins are reinserted after the sleeving is completed, so that the primary fixing can be completed. When the pin rotates to a preset locking position, the first ball is clamped into a preset clamping groove of the overlapping surface of two adjacent hinge bases so as to limit the relative rotation of the hinge bases and ensure the structural stability of the closed annular frame. The sliding seat assembly comprises a sliding base, two groups of pulleys are symmetrically arranged at the bottom of the sliding base, the pulleys are slidably arranged on a perforated sliding rail of the annular frame and can stably move along the circumferential direction of a pipeline, and the pulleys are locked and fixed through nuts to prevent the pulleys from falling off or shifting in the sliding process. The sliding seat assembly is fixedly provided with a circumferential motor through a bolt, the output end of the circumferential motor is connected with a pinion through a coupler, the pinion is meshed with the large gear, and the pinion is driven to rotate through the circumferential motor to drive the sliding seat assembly to move along the circumferential direction of the annular frame. The radial driving assembly is arranged on the sliding seat assembly and comprises a radial motor, a longitudinal beam sliding rail, a longitudinal beam ball screw and a longitudinal beam sliding block. The radial driving assembly further comprises a first longitudinal beam fixing plate and a second longitudinal beam fixing plate which are symmetrically fixed at two ends of the longitudinal beam sliding rail through bolts, the longitudinal beam ball screw is installed between the first longitudinal beam fixing plate and the second longitudinal beam fixing plate through bearings, smooth rotation of the longitudinal beam ball screw is guaranteed, the longitudinal beam sliding rail is fixed on the sliding base through bolts, and installation stability of the radial driving assembly is guaranteed. The radial motor is connected with a longitudinal beam ball screw through a longitudinal beam coupler, and passes through the longitudinal beam coupler through bolts and nuts to fix the radial motor and the longitudinal beam ball screw, and the radial motor is fixed on the first longitudinal beam fixing plate through bolts. The radial motor drives the longitudinal beam ball screw to rotate, and drives the longitudinal beam sliding block to move along the longitudinal beam sliding rail along the radial direc