CN223037878U - A rail ultrasonic flaw detection device - Google Patents
A rail ultrasonic flaw detection device Download PDFInfo
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- CN223037878U CN223037878U CN202422356861.5U CN202422356861U CN223037878U CN 223037878 U CN223037878 U CN 223037878U CN 202422356861 U CN202422356861 U CN 202422356861U CN 223037878 U CN223037878 U CN 223037878U
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Abstract
本实用新型涉及一种探伤装置，具体涉及一种钢轨超声波探伤装置。该探伤装置包括传送架，对称设置的传送架之间通过轨底传送机构装有下轨底检测探头；传送架的端头设置有阻挡架，传送架一侧通过轨上传送机构装有上轨底检测探头、轨腰检测探头、轨顶检测探头和轨侧检测探头。该探伤装置能通过检测探头分别对钢轨的底端下表面、底端上表面、轨腰、轨顶和轨头两侧分别进行检测，由于是针对钢轨的不同部位分别检测，能有效减小误探率，保证检测结果的准确性；同时通过轨底传送机构和轨上传送机构能带动检测探头来回多次检测，进一步降低误探率，保证检测结果准确。解决了现有探伤装置误探率高，检测结果不准确的问题。
The utility model relates to a flaw detection device, and specifically to a rail ultrasonic flaw detection device. The flaw detection device comprises a conveying frame, wherein a lower rail bottom detection probe is installed between symmetrically arranged conveying frames through a rail bottom conveying mechanism; a blocking frame is provided at the end of the conveying frame, and an upper rail bottom detection probe, a rail waist detection probe, a rail top detection probe and a rail side detection probe are installed on one side of the conveying frame through a rail conveying mechanism. The flaw detection device can detect the lower surface of the bottom end, the upper surface of the bottom end, the rail waist, the rail top and both sides of the rail head of the rail respectively through the detection probe. Since different parts of the rail are detected respectively, the false detection rate can be effectively reduced to ensure the accuracy of the detection result; at the same time, the detection probe can be driven to perform multiple back and forth detections through the rail bottom conveying mechanism and the rail conveying mechanism, thereby further reducing the false detection rate and ensuring the accuracy of the detection result. The problem of high false detection rate and inaccurate detection results of existing flaw detection devices is solved.
Description
Technical Field
The utility model relates to a flaw detector, in particular to an ultrasonic flaw detector for a steel rail.
Background
Along with the continuous increase of passenger traffic of railway systems and train speed, the quality requirements on the steel rail are higher and higher, the quality relation of the steel rail is important to the life safety and property safety, and certain surface defects and nonmetallic inclusions such as scars, surface cracks, white spots, internal cracks, microscopic cracks and the like can be generated in the smelting, rolling and heat treatment processes of the steel rail, and under the long-time loading effect of wheels, the defects can gradually lead to the reduction of the effective section of the steel rail, and finally the rail is broken, so that serious accidents are caused.
In order to ensure safety, in the existing domestic and foreign steel rail standards, all the steel rails are required to be put into use after passing the flaw detection before leaving the factory. At present, the flaw detection of the steel rail generally uses ultrasonic flaw detection, and the ultrasonic flaw detection has many advantages, such as high sensitivity, high speed, no damage to the surface of the steel rail and the like.
The patent application with the publication number of CN218584722U discloses a fixed steel rail flaw detection device, which comprises an outer frame, a detection wheel structure for carrying out flaw detection treatment on steel rails and an encoder assembly for detecting the displacement of the steel rails, wherein the detection wheel structure and the encoder assembly are arranged in the outer frame, and the detection wheel structure is arranged above the encoder assembly; the utility model sets up rail conveying mouth on both sides of the outer frame, is used for conveying the rail, the rail is transmitted in the outer frame, then use the wheel detecting structure to carry on the flaw detection operation to the rail, use the detection of the displacement of the encoder, the wheel detecting cooperates with encoder, thus confirm the position of rail damage, this device can pass and install on rail production line, the next section carries on immediately after a section of rail detection finishes, realize the automatic detection to the multi-section rail outgoing from the factory, need not the manual work to assist, the detection process is simple, raise the rail outgoing from the factory detection efficiency greatly, solve the manual detection inefficiency and tedious problem of the process.
The flaw detector can detect the outgoing steel rail, but when the flaw detector detects the outgoing steel rail through the wheel detecting structure, the flaw detector detects the outgoing steel rail downwards from the top of the steel rail, and the detection of the rail web and the rail bottom of the steel rail has higher false detection rate due to the shielding of the rail top. It is therefore necessary to redesign an ultrasonic flaw detector for a rail to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims to provide the ultrasonic flaw detection device for the steel rail, which can effectively reduce the false detection rate and improve the detection accuracy.
The technical scheme of the utility model is as follows:
The ultrasonic flaw detector for the steel rail consists of conveying frames, rail bottom conveying mechanisms, blocking frames and rail upper conveying mechanisms and is characterized in that the rail bottom conveying mechanisms are arranged between the conveying frames which are symmetrically arranged, lower rail bottom detection probes for detecting the middle of the lower surface of the bottom end of the steel rail are arranged on the rail bottom conveying mechanisms, the blocking frames are arranged at the ends of the conveying frames, the rail upper conveying mechanisms are arranged on one sides of the conveying frames, upper rail bottom detection probes for detecting the upper surface of the rail bottom end are symmetrically arranged on the rail upper conveying mechanisms, rail waist detection probes for detecting the waist of the steel rail are arranged above the upper rail bottom detection probes on one side, rail top detection probes for detecting the top of the rail head are arranged above the rail waist detection probes, and rail side detection probes for detecting the side surfaces of the rail head are respectively arranged on two sides of the rail top detection probes.
The conveying frame consists of a frame, conveying rollers and conveying motors, the conveying rollers are uniformly arranged on the frame through bearings and are connected with each other through a transmission chain, the conveying motors are arranged on one side of the middle of the frame, and the conveying motors are respectively connected with the adjacent conveying rollers above the conveying motors through driving chains.
The blocking frame consists of a baffle plate, a lifting screw rod, a lifting nut, a gear box, a lifting sliding rail and a lifting sliding seat, wherein the lifting screw rod is arranged at one end of the baffle plate and connected with the baffle plate through the lifting nut, the gear box is arranged at the bottom end of the lifting screw rod, the lifting sliding rail is arranged at the other side of the baffle plate, and the lifting sliding rail is connected with the baffle plate through the lifting sliding seat.
The rail bottom conveying mechanism and the rail upper conveying mechanism are respectively composed of a conveying sliding rail, a conveying screw rod, a screw rod motor, a conveying nut and a supporting plate, the conveying screw rod is installed above the conveying sliding rail through a bearing seat, the screw rod motor is arranged at the end of the conveying screw rod, an output shaft of the screw rod motor is fixedly connected with the conveying screw rod through a coupler, the conveying nut is installed on the conveying screw rod in a threaded mode and is movably connected with the conveying sliding rail through a conveying sliding seat, and the supporting plate is arranged on the conveying nut.
The top end of the rail bottom conveying mechanism supporting plate is fixedly connected with the lower rail bottom detecting probe, the end of the rail upper conveying mechanism supporting plate is in an inverted U shape, and the supporting plate of the rail upper conveying mechanism is fixedly connected with the upper rail bottom detecting probe, the rail waist detecting probe, the rail top detecting probe and the rail side detecting probe respectively.
Preferably, the lower rail bottom detection probe, the upper rail bottom detection probe, the rail waist detection probe, the rail top detection probe and the rail side detection probe are respectively bimorph ultrasonic probes.
The utility model has the beneficial effects that:
The ultrasonic flaw detector for the steel rail can respectively detect the lower surface of the bottom end, the upper surface of the bottom end, the rail web, the rail top and the two sides of the rail head of the steel rail through the detection probes, can effectively reduce the false detection rate and ensure the accuracy of detection results because the ultrasonic flaw detector is respectively used for detecting different parts of the steel rail, and can drive the detection probes to perform back and forth detection for a plurality of times through the rail bottom conveying mechanism and the rail upper conveying mechanism to further reduce the false detection rate and ensure the accuracy of detection results. The problem of current flaw detection device mistake detection rate high, the testing result is inaccurate is solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the transfer frame of the present utility model;
FIG. 3 is a schematic view of the structure of the blocking frame of the present utility model;
FIG. 4 is a schematic view of the structure of the rail foot detection mechanism of the present utility model;
fig. 5 is a schematic structural view of the on-rail detection mechanism of the present utility model.
In the figure, 1, a lower rail bottom detection probe, 2, an upper rail bottom detection probe, 3, a rail waist detection probe, 4, a rail top detection probe, 5, a rail side detection probe, 6, a frame, 7, a conveying roller, 8, a conveying motor, 9, a transmission chain, 10, a driving chain, 11, a baffle, 12, a lifting screw rod, 13, a lifting nut, 14, a gear box, 15, a lifting slide rail, 16, a lifting slide seat, 17, a conveying slide rail, 18, a conveying screw rod, 19, a screw rod motor, 20, a conveying nut, 21, a supporting plate, 22, a conveying slide seat, 23, a detection camera, 24 and a steel rail.
Detailed Description
The ultrasonic flaw detector for the steel rail comprises a conveying frame, a rail bottom conveying mechanism, a blocking frame and an on-rail conveying mechanism, wherein the rail bottom conveying mechanism is arranged between the conveying frames which are symmetrically arranged, a lower rail bottom detection probe 1 for detecting the middle of the lower surface of the bottom end of the steel rail is arranged on the rail bottom conveying mechanism, the blocking frame is arranged at the end of the conveying frame, the on-rail conveying mechanism is arranged on one side of the conveying frame, an upper rail bottom detection probe 2 for detecting the upper surface of the bottom end of the steel rail is symmetrically arranged on the on-rail conveying mechanism, a rail waist detection probe 3 for detecting the waist of the steel rail is arranged above the upper rail bottom detection probe 2 on one side, a rail top detection probe 4 for detecting the top of the rail head is arranged above the rail waist detection probe 3, and rail side detection probes 5 for detecting the side surfaces of the rail head are respectively arranged on two sides of the rail top detection probe 4. The conveying frame is used for conveying the steel rail through the conveying frame, so that the steel rail enters the movement range of the rail bottom conveying mechanism and the rail upper conveying mechanism, and the rail bottom conveying mechanism and the rail upper conveying mechanism can drive the detection probes to scan all positions of the steel rail, so that the steel rail can be comprehensively detected. The rail bottom conveying mechanism has the function that the rail bottom detecting probe 1 is driven by the rail bottom conveying mechanism to move at the bottom of the steel rail, so that the lower surface of the bottom end of the steel rail is comprehensively detected. The on-rail conveying mechanism has the function of respectively driving the upper rail bottom detection probe 2, the rail web detection probe 3, the rail top detection probe 4 and the rail side detection probe 5 to move along the steel rail through the on-rail conveying mechanism so as to respectively and comprehensively detect the upper surface of the bottom end of the steel rail, the rail web, the rail top and the two sides of the rail head. The lower surface of the bottom end, the upper surface of the bottom end, the rail web, the rail top and the two sides of the rail head of the steel rail can be comprehensively detected, so that the detection can be carried out on the steel rail at all positions instead of from top to bottom, the false detection rate can be effectively reduced, meanwhile, the steel rail can be comprehensively detected through the back and forth movement of the detection probe along the steel rail, the false detection rate can be further reduced, and the accuracy of the detection result is ensured. The blocking rack is used for blocking the steel rail through the blocking rack so as to limit the position of the steel rail, thereby ensuring that the steel rail can be comprehensively detected.
The conveying frame is composed of a frame 6, conveying rollers 7 and conveying motors 8, the conveying rollers 7 are uniformly arranged on the frame 6 through bearings, the conveying rollers 7 are connected with each other through a transmission chain 9, the conveying motors 8 are arranged on one side of the middle of the frame 6, and the conveying motors 8 are respectively connected with the adjacent conveying rollers 7 above the conveying motors 8 through driving chains 10.
The baffle frame is composed of a baffle plate 11, a lifting screw rod 12, a lifting nut 13, a gear box 14, a lifting sliding rail 15 and a lifting sliding seat 16, wherein the lifting screw rod 12 is arranged at one end of the baffle plate 11, the lifting screw rod 12 is connected with the baffle plate 11 through the lifting nut 13, the gear box 14 is arranged at the bottom end of the lifting screw rod 12, the lifting sliding rail 15 is arranged at the other side of the baffle plate 11, and the lifting sliding rail 15 is connected with the baffle plate 11 through the lifting sliding seat 16. The middle part of baffle 11 is provided with detects camera 23, detects camera 23 and PLC and is connected, detects the camera 23 and can detect the rail to control and block frame, rail end transport mechanism and on-rail transport mechanism action, after the rail is in place from this, control the detection to the rail. The lifting screw rod 12 can be connected with a motor through the gear box 14, and then the lifting screw rod 12 is driven to rotate through the motor and the gear box 14 in sequence, so that the baffle 11 is driven to lift through the lifting nut 13 in the rotation process of the lifting screw rod 12, the baffle 11 can block a steel rail in the detection process, the baffle 11 can ascend after the detection, the steel rail can be released, and the steel rail can be continuously conveyed forwards.
The rail bottom conveying mechanism and the rail upper conveying mechanism are respectively composed of a conveying sliding rail 17, a conveying screw rod 18, a screw rod motor 19, a conveying nut 20 and a supporting plate 21, wherein the conveying screw rod 18 is installed above the conveying sliding rail 17 through a bearing seat, the screw rod motor 19 is arranged at the end of the conveying screw rod 18, an output shaft of the screw rod motor 19 is fixedly connected with the conveying screw rod 18 through a coupler, the conveying screw rod 18 is provided with the conveying nut 20 in a threaded mode, the conveying nut 20 is movably connected with the conveying sliding rail 17 through a conveying sliding seat 22, and the supporting plate 21 is arranged on the conveying nut 20. The top end of the rail bottom conveying mechanism supporting plate 21 is fixedly connected with the lower rail bottom detecting probe 1, the end of the rail upper conveying mechanism supporting plate 21 is in an inverted U shape, and the supporting plate 21 of the rail upper conveying mechanism is fixedly connected with the upper rail bottom detecting probe 2, the rail waist detecting probe 3, the rail top detecting probe 4 and the rail side detecting probe 5 respectively. The screw motor 19 is used for driving the transmission screw 18 to rotate through the screw motor 19 and further driving the transmission nut 20 to move along the transmission screw 18, so that the lower rail bottom detection probe 1, the upper rail bottom detection probe 2, the rail web detection probe 3, the rail top detection probe 4 and the rail side detection probe 5 are respectively driven to move through the supporting plate 21 in the movement process of the transmission nut 20, and the steel rail is comprehensively detected through the lower rail bottom detection probe 1, the upper rail bottom detection probe 2, the rail web detection probe 3, the rail top detection probe 4 and the rail side detection probe 5 in the movement process. Preferably, the lower rail bottom detecting probe 1, the upper rail bottom detecting probe 2, the rail web detecting probe 3, the rail top detecting probe 4 and the rail side detecting probe 5 are respectively double-crystal ultrasonic probes.
When the ultrasonic flaw detector for the steel rail works, the steel rail is conveyed to the conveying roller 7 of the conveying frame, and the conveying motor 8 conveys the steel rail forwards through the driving chain 10, the driving chain 9 and the conveying roller 7. When the detected camera 23 detects the steel rail in the conveying process, the baffle 11 is driven to move downwards through the motor, the gear box 14, the lifting screw rod 12 and the lifting nut 13 to block the steel rail. After the steel rail is in place, a screw rod motor 19 of the rail bottom conveying mechanism and the rail upper conveying mechanism is started, the screw rod motor 19 sequentially drives a lower rail bottom detecting probe 1, an upper rail bottom detecting probe 2, a rail waist detecting probe 3, a rail top detecting probe 4 and a rail side detecting probe 5 to reciprocate along the steel rail through a conveying screw rod 18, a conveying nut 20 and a supporting plate 21, and the lower rail bottom detecting probe 1, the upper rail bottom detecting probe 3, the rail top detecting probe 4 and the rail side detecting probe 5 respectively and comprehensively detect all positions of the steel rail in the reciprocating process of the lower rail bottom detecting probe 1, the upper rail waist detecting probe 3, the rail top detecting probe 4 and the rail side detecting probe 5 along the steel rail.
The ultrasonic flaw detector for the steel rail can respectively detect the lower surface of the bottom end, the upper surface of the bottom end, the rail web, the rail top and the two sides of the rail head of the steel rail through the detection probes, can effectively reduce the false detection rate and ensure the accuracy of detection results because the ultrasonic flaw detector is respectively used for detecting different parts of the steel rail, and can drive the detection probes to perform back and forth detection for a plurality of times through the rail bottom conveying mechanism and the rail upper conveying mechanism to further reduce the false detection rate and ensure the accuracy of detection results. The problem of current flaw detection device mistake detection rate high, the testing result is inaccurate is solved.
Claims (6)
1. The ultrasonic flaw detection device for the steel rail comprises conveying frames, rail bottom conveying mechanisms, blocking frames and rail upper conveying mechanisms and is characterized in that the rail bottom conveying mechanisms are arranged between the conveying frames which are symmetrically arranged, lower rail bottom detection probes (1) for detecting the middle of the lower surface of the bottom end of the steel rail are arranged on the rail bottom conveying mechanisms, the blocking frames are arranged at the ends of the conveying frames, the rail upper conveying mechanisms are arranged on one sides of the conveying frames, upper rail bottom detection probes (2) for detecting the upper surface of the rail bottom end are symmetrically arranged on the rail upper conveying mechanisms, rail waist detection probes (3) for detecting the waist of the steel rail are arranged above the upper rail bottom detection probes (2) on one side, rail top detection probes (4) for detecting the top of a rail head are arranged above the rail waist detection probes (3), and rail side detection probes (5) for detecting the side surfaces of the rail head are respectively arranged on two sides of the rail top detection probes (4).
2. The ultrasonic flaw detection device for the steel rail is characterized in that the conveying frame is composed of a frame (6), conveying rollers (7) and conveying motors (8), the conveying rollers (7) are uniformly arranged on the frame (6) through bearings, the conveying rollers (7) are connected with each other through a transmission chain (9), the conveying motors (8) are arranged on one side of the middle of the frame (6), and the conveying motors (8) are connected with the conveying rollers (7) above the conveying motors (8) through driving chains (10).
3. The ultrasonic flaw detection device for the steel rail is characterized in that the blocking frame is composed of a baffle plate (11), a lifting screw rod (12), a lifting nut (13), a gear box (14), a lifting sliding rail (15) and a lifting sliding seat (16), the lifting screw rod (12) is arranged at one end of the baffle plate (11), the lifting screw rod (12) is connected with the baffle plate (11) through the lifting nut (13), the gear box (14) is arranged at the bottom end of the lifting screw rod (12), the lifting sliding rail (15) is arranged at the other side of the baffle plate (11), and the lifting sliding rail (15) is connected with the baffle plate (11) through the lifting sliding seat (16).
4. The ultrasonic flaw detection device for the steel rail is characterized in that the rail bottom conveying mechanism and the rail upper conveying mechanism are respectively composed of a conveying sliding rail (17), a conveying screw rod (18), a screw rod motor (19), a conveying nut (20) and a supporting plate (21), the conveying screw rod (18) is installed above the conveying sliding rail (17) through a bearing seat, the screw rod motor (19) is arranged at the end of the conveying screw rod (18), an output shaft of the screw rod motor (19) is fixedly connected with the conveying screw rod (18) through a coupler, the conveying nut (20) is installed on the conveying screw rod (18) in a threaded mode, the conveying nut (20) is movably connected with the conveying sliding rail (17) through a conveying sliding seat (22), and the supporting plate (21) is arranged on the conveying nut (20).
5. The ultrasonic flaw detection device for the steel rail is characterized in that the top end of a rail bottom conveying mechanism supporting plate (21) is fixedly connected with a lower rail bottom detection probe (1), the end of an on-rail conveying mechanism supporting plate (21) is in an inverted U shape, and the supporting plate (21) of the on-rail conveying mechanism is fixedly connected with an upper rail bottom detection probe (2), a rail waist detection probe (3), a rail top detection probe (4) and a rail side detection probe (5) respectively.
6. The ultrasonic flaw detector for steel rails according to claim 1, wherein the lower rail bottom detecting probe (1), the upper rail bottom detecting probe (2), the rail waist detecting probe (3), the rail top detecting probe (4) and the rail side detecting probe (5) are bimorph ultrasonic probes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422356861.5U CN223037878U (en) | 2024-09-26 | 2024-09-26 | A rail ultrasonic flaw detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422356861.5U CN223037878U (en) | 2024-09-26 | 2024-09-26 | A rail ultrasonic flaw detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223037878U true CN223037878U (en) | 2025-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422356861.5U Active CN223037878U (en) | 2024-09-26 | 2024-09-26 | A rail ultrasonic flaw detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223037878U (en) |
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2024
- 2024-09-26 CN CN202422356861.5U patent/CN223037878U/en active Active
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