CN-121558880-B - Rail detection device for railway construction

CN121558880BCN 121558880 BCN121558880 BCN 121558880BCN-121558880-B

Abstract

The invention relates to the technical field of railway construction and discloses a rail detection device for railway construction, which comprises a rail body to be detected, wherein grooves are formed in two sides of the rail body, a self-walking driving unit is arranged on the rail body, a revolution driving unit fixedly connected with the self-walking driving unit is further arranged on one side of the revolution driving unit, a detection shell is arranged on the top of the detection shell, an ultrasonic flaw detector is fixed on the bottom of the detection shell, a U-shaped plate is fixed on the bottom of the detection shell, a swinging piece is arranged on the bottom of the U-shaped plate, and an ultrasonic flaw detector is fixed at one end of the swinging piece.

Inventors

WANG GAO
ZHANG HUI
LI XIN
WANG BO
FENG ZHI
WANG YUAN
TANG YAN
LUO XU
TANG JUNLIN
LI QIANG
QIN BO
DENG XIAOFENG

Assignees

四川省铁证工程检测有限公司

Dates

Publication Date: 20260505
Application Date: 20260121

Claims (6)

1. A rail detection apparatus for railway construction, comprising: The rail comprises a rail body (1) to be detected, wherein grooves are formed in two sides of the rail body (1), and a self-walking driving unit (2) is arranged on the rail body (1); Characterized by further comprising: the ultrasonic flaw detector comprises a revolution driving unit (3) fixedly connected with a self-walking driving unit (2), wherein a detection shell (4) is arranged on one side of the revolution driving unit (3), an ultrasonic flaw detector (5) is fixed at the top of the detection shell (4), a U-shaped plate (6) is fixed at the bottom of the detection shell (4), a swinging piece (7) is arranged at the bottom of the U-shaped plate (6), and an ultrasonic flaw detector head (8) is fixed at one end of the swinging piece (7); an adjusting unit (9) mounted between the detection housing (4) and the revolution driving unit (3), the adjusting unit (9) being used for adjusting the distance between the ultrasonic flaw detection head (8) and the rail body (1); The revolution driving unit (3) comprises a connecting frame (10), one end of the connecting frame (10) is fixedly provided with an annular inner toothed plate (11), an annular guide rail (12) which is coaxially distributed with the annular inner toothed plate (11) is arranged on the inner side of the annular inner toothed plate, a sliding block (13) is connected onto the annular guide rail (12) in a sliding mode, a first rotating shaft (14) is connected onto the sliding block (13) in a rotating mode, one end of the first rotating shaft (14) is fixedly provided with a gear (15) which is meshed with the annular inner toothed plate (11), the other end of the first rotating shaft is fixedly connected with a first speed reducing motor (16) through a coupler, and the first speed reducing motor (16) is fixedly connected with the adjusting unit (9); The adjusting unit (9) comprises an adjusting plate (17) fixedly connected with a first gear motor (16), a second gear motor (18) is fixedly connected to the top of the adjusting plate (17), a screw rod (19) is fixedly connected to the output end of the second gear motor (18) through a coupler, both ends of the screw rod (19) are rotationally connected with the adjusting plate (17), a sliding table (20) is connected to the outer side of the screw rod (19) through threads, a linear guide rail (21) is slidingly connected to one side of the sliding table (20), the linear guide rail (21) is fixedly connected with the adjusting plate (17), one end, far away from the linear guide rail (21), of the sliding table (20) is fixedly connected with the detecting shell (4) through a fixing plate, and a first connecting plate (22) is fixedly connected to the top of the adjusting plate (17). The swinging piece (7) comprises a second rotating shaft (23) which is rotationally connected with the U-shaped plate (6), a swinging arm (24) is fixedly sleeved on the outer side of the second rotating shaft (23), a fixed frame (25) is fixedly arranged at one end of the swinging arm (24), the ultrasonic flaw detection head (8) is fixedly connected with one end of the fixed frame (25), a third gear motor (26) is fixedly connected with one end of the second rotating shaft (23) through a coupler, and the third gear motor (26) is fixedly connected with the U-shaped plate (6); the inside sliding seal who detects shell (4) is connected with piston board (27), the top of piston board (27) is fixed with piston rod (28), the top of piston rod (28) with connecting plate one (22) fixed connection, the bottom one side of detecting shell (4) is connected with air inlet nozzle (29) and air outlet nozzle (30) through the check valve respectively, the one end of air outlet nozzle (30) is fixed with hose (31), hose (31) are kept away from the one end of air outlet nozzle (30) is fixed with clean spray tube (32), clean spray tube (32) are inclined to face ultrasonic flaw detection head (8), the outside of clean spray tube (32) is fixed with connecting plate two (33), connecting plate two (33) with fixed frame (25) fixed connection.
2. The rail detection device for railway construction of claim 1, wherein the self-walking driving unit (2) comprises driving wheels (34) attached to two sides of the top of the rail body (1), driving shafts (35) are fixedly connected between the driving wheels (34), one ends of the driving shafts (35) are fixedly provided with gear motors IV (36), two sides of the driving shafts (35) are rotatably connected with driving plates (37), and the gear motors IV (36) are fixedly connected with the driving plates (37) through fixing plates.
3. A rail detection device for railway construction according to claim 2, wherein a third connecting plate (38) is fixed on one side of the driving plate (37) close to the rail body (1), a wiping block (39) is fixed on one end of the third connecting plate (38) far away from the driving plate (37), and the wiping block (39) is attached to the inner wall of the groove on the rail body (1).
4. A rail detection device for railway construction according to claim 1, wherein a limit rod (40) is fixed on one side of the adjusting plate (17) close to the annular guide rail (12), an annular limit groove (41) is formed in the outer side of the annular guide rail (12), and one end of the limit rod (40) is slidably connected in the annular limit groove (41).
5. A rail detection device for railway construction according to claim 1, wherein the swing arm (24) is provided with a through groove (42), and the through groove (42) is in a long strip shape.
6. A rail inspection apparatus for railway construction according to claim 1, wherein the ultrasonic flaw detector (8) is electrically connected with the ultrasonic flaw detector (5) through a connecting wire, and a display panel is provided on the front side of the ultrasonic flaw detector (5).

Description

Rail detection device for railway construction Technical Field The invention relates to the technical field of railway construction, in particular to a rail detection device for railway construction. Background Rolling stock is a rail transport means that uses the rotation of wheel sets to run on rails, and therefore wheel sets are the most basic of the rolling stock components. The tread of the wheel has certain strength, and when the wheel rotates on a steel rail, the shearing pressure effect generated by contact causes a small deep part of the tread to become the starting point of fatigue cracks, so that micro cracks are generated, and then the micro cracks are influenced by various load factors in operation to develop into crescent cracks or peeling cracks. At present, the prior art mainly depends on a traditional manual detection mode when detecting micro cracks on rails, workers need to walk along the rails for detection, and the method has the remarkable limitations that firstly, the labor intensity is high, the workers need to walk outdoors for a long time, particularly, the physical consumption is extremely high in long-distance rail line detection, secondly, the detection efficiency is low, the manual detection speed is limited by the walking speed and the operation proficiency of the workers, the large-scale and high-frequency detection requirements are difficult to meet, thirdly, the detection precision is unstable, the detection precision is influenced by subjective factors such as the experience level, visual fatigue and concentration of the workers, the problems of missed detection (such as unidentified micro cracks), false detection (such as misjudgment of normal abrasion as defect) and the like are easy to occur, and the reliability of detection results cannot be ensured. Disclosure of Invention The present invention aims to provide a rail detection device for railway construction, which solves the problems set forth in the background art. In order to achieve the above purpose, the present invention provides the following technical solutions: The rail detection device for railway construction comprises a rail body to be detected, a revolution driving unit fixedly connected with the self-walking driving unit, a detection shell arranged on one side of the revolution driving unit, an ultrasonic flaw detector fixed on the top of the detection shell, a U-shaped plate fixed on the bottom of the detection shell, a swinging piece arranged on the bottom of the U-shaped plate, an ultrasonic flaw detection head fixed on one end of the swinging piece, and an adjusting unit arranged between the detection shell and the revolution driving unit and used for adjusting the distance between the ultrasonic flaw detection head and the rail body. Preferably, the revolution driving unit comprises a connecting frame, one end of the connecting frame is fixedly provided with an annular inner toothed plate, an annular guide rail coaxially distributed with the annular inner toothed plate is arranged on the inner side of the annular inner toothed plate, a sliding block is connected to the annular guide rail in a sliding mode, a first rotating shaft is connected to the sliding block in a rotating mode, one end of the first rotating shaft is fixedly provided with a gear meshed with the annular inner toothed plate, the other end of the first rotating shaft is fixedly connected with a first gear motor through a coupler, and the first gear motor is fixedly connected with the adjusting unit. Preferably, the adjusting unit comprises an adjusting plate fixedly connected with a first gear motor, a second gear motor is fixedly connected to the top of the adjusting plate, a screw rod is fixedly connected to the output end of the second gear motor through a shaft coupling, both ends of the screw rod are rotationally connected with the adjusting plate, a sliding table is connected to the outer side of the screw rod in a threaded mode, a linear guide is slidably connected to one side of the sliding table, the linear guide is fixedly connected with the adjusting plate, one end, away from the linear guide, of the sliding table is fixedly connected with the detecting shell through a fixing plate, and a first connecting plate is fixedly arranged on the top of the adjusting plate. Preferably, the swinging piece comprises a second rotating shaft which is rotationally connected with the U-shaped plate, a swinging arm is fixedly sleeved on the outer side of the second rotating shaft, a fixing frame is fixed at one end of the swinging arm, the ultrasonic flaw detection head is fixedly connected with one end of the fixing frame, a third gear motor is fixedly connected with one end of the second rotating shaft through a coupler, and the third gear motor is fixedly connected with the U-shaped plate. Preferably, the inside sliding seal who detects the shell is connected with the piston board, the top of piston board is fixed with the piston rod,