Double-block type sleeper profile detection system and detection method

Abstract

The invention discloses a double-block type sleeper appearance detection system and method, and relates to the technical field of sleeper detection.The double-block type sleeper appearance detection system comprises a point pasting device, a detection device, a code spraying device, a conveying belt and a control cabinet, and the point pasting device is used for pasting mark points on the surface of a sleeper; the detection device comprises a frame, a moving assembly and detection equipment, a detection area is defined by the frame, the moving assembly is movably connected to the top of the frame, the detection equipment comprises a connecting assembly and two scanners, and the two scanners are connected to the moving assembly through the connecting assembly and can be driven by the moving assembly to jointly move in the detection area. The two scanners are used for scanning the sleeper pasted with the mark points together; a code spraying area is formed in the code spraying device, and the code spraying device is used for spraying codes on the sleepers in the code spraying area. The two scanning models are obtained and are mutually fitted, so that the two scanning models are mutually verified, and the detection precision is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of sleeper detection, and in particular to a double-block sleeper shape detection system and detection method. Background Art

[0002] In railway construction, the double-block sleeper is an important prefabricated component. It is composed of two half-block concrete sleepers connected by connectors to support the track and disperse the pressure when the train passes. In the production process of double-block sleepers, the accuracy of the external dimensions is crucial to ensure railway safety and extend the service life. Therefore, external dimension detection has become an indispensable part of the production process.

[0003] In the traditional production process of double-block sleepers, the shape detection mainly relies on manual work, which is not only inefficient, but also difficult to ensure the accuracy and consistency of the detection results. With the development of technology, automated scanning equipment has gradually been introduced into the shape detection of double-block sleepers. Scanning equipment usually uses 3D laser scanning technology, which can automatically obtain the 3D point cloud data of the sleeper, and analyze and process it through software to realize the detection of the shape and size of the sleeper.

[0004] However, when the existing shape detection platform performs shape detection on double-block sleepers, the scanning equipment has errors in the scanning model due to viewing angle limitations or insufficient accuracy, and cannot fully and accurately reflect the actual shape of the sleeper, resulting in low detection accuracy. Summary of the invention

[0005] The main purpose of the present invention is to propose a dual-block sleeper shape detection system and detection method, aiming to solve the technical problem in the prior art that when the shape detection platform performs shape detection on the dual-block sleeper, the scanning equipment has errors in the scanning model and the detection accuracy is low due to the viewing angle limitation or insufficient accuracy.

[0006] To achieve the above-mentioned purpose, the dual-block sleeper shape detection system proposed in the present invention includes a point sticking device, a detection device, a coding device, a conveyor belt and a control cabinet, wherein a point sticking area is formed in the point sticking device, and the point sticking device is used to stick marking points on the surface of the sleeper in the point sticking area; the detection device includes a frame, a moving assembly and a detection device, the frame encloses a detection area, the moving assembly is movably connected to the top of the frame, the detection device includes a connecting component and two scanners, both of the two scanners are connected to the moving assembly through the connecting component, and can move together in the detection area under the drive of the moving assembly, and the two scanners are used to jointly scan a sleeper with the marking points stuck on it; a coding area is formed in the coding device, and the coding device is used to code the sleeper in the coding area; the conveyor belt is used to transport the sleeper through the point sticking area, the detection area and the coding area in sequence; the control cabinet is communicatively connected to the conveyor belt, the point sticking device, the moving assembly, each of the scanners and the coding device.

[0007] In one embodiment, the point sticking device includes a point sticking device and a driving member, wherein the driving member is used to drive the point sticking device to move in a direction close to or away from the sleeper, and the point sticking device is used to stick the marking point on the surface of the sleeper when approaching the sleeper.

[0008] In one embodiment, the moving assembly includes a moving beam and a telescopic column, the moving beam extends along a second horizontal direction, and two ends of the moving beam are slidably connected to two sides of the frame along the second horizontal direction, and the moving beam can slide along a first horizontal direction; the second horizontal direction and the first horizontal direction are perpendicular to each other; the telescopic column is slidably connected to the moving beam, and the lower end of the telescopic column can be telescoped vertically, and the connecting component is connected to the lower end of the telescopic column.

[0009] In one embodiment, two first slide rails are respectively installed on both sides of the top of the frame along the second horizontal direction, each of the first slide rails extends along the first horizontal direction, and each of the first slide rails is provided with a first slider that slides with the corresponding first slide rail, and the two ends of the movable beam are respectively connected to the two first sliders.

[0010] In one embodiment, a second slide rail is installed on the top of the movable beam, the second slide rail extends along the second horizontal direction, a second slider slidably matched with the second slide rail is provided on the second slide rail, and the upper end of the telescopic column is connected to the second slider.

[0011] In one embodiment, the telescopic column includes a cylinder and a column, the upper end of the cylinder is connected to the second slider, the column is telescopically matched with the lower end of the cylinder, and the connecting assembly is connected to the lower end of the column.

[0012] In one embodiment, the connecting component includes a connecting beam, a connecting shaft, a rotating shaft and a connecting plate, the two ends of the connecting beam are connected between the two scanners, the rotating shaft passes through the middle of the connecting beam along the first horizontal direction, and the connecting beam can rotate around the rotating shaft to drive the two scanners to rotate synchronously; the connecting shaft and the rotating shaft are arranged with an upper and lower interval, the connecting shaft passes through the lower end of the column along the first horizontal direction, and the connecting plate is connected between the connecting shaft and the rotating shaft.

[0013] In one embodiment, the number of the connecting plates is two, and the end of the connecting shaft and the end of the rotating shaft located on the same side are connected via one of the connecting plates.

[0014] In one embodiment, the dual-block sleeper shape detection system further includes a position sensor, and the position sensor is used to detect the position of the sleeper.

[0015] The present invention also provides a double-block sleeper shape detection method, which is applied with the above-mentioned double-block sleeper shape detection system.

[0016] The double-block sleeper shape detection system and detection method proposed by the present invention place the sleeper on a conveyor belt, and control the conveyor belt through a control cabinet to sequentially transport the sleeper to a point sticking device, a detection device and a coding device. The control cabinet can control the point sticking device to stick marking points on the surface of the sleeper, and control the detection device to detect the shape of the sleeper. The control cabinet also controls the coding device to perform coding processing on sleepers with qualified shapes, thereby realizing the automatic detection and coding of the sleeper shape. When the detection device performs shape detection on the sleeper, the detection device is driven to move in the detection area through the mobile assembly, so that the detection device can move to a preset position for detection. When the detection device detects the sleeper, two scanners are used to scan the same sleeper together, and two scanning data are obtained respectively. The control cabinet obtains two scanning models according to the two scanning data, and fits the two scanning models to obtain the final scanning model, so as to detect the shape of the sleeper. By fitting the two scanning models obtained by the two scanners with each other, the two scanning models are mutually verified, the reliability of the scanning model is improved, and the final scanning model is more in line with the actual situation of the sleeper, which greatly improves the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of an embodiment of a detection device in a dual-block sleeper shape detection platform provided by the present invention;

[0019] Figure 2 A partial structural schematic diagram of an embodiment of a detection device in a dual-block sleeper shape detection platform provided by the present invention;

[0020] Figure 3 A schematic structural diagram of an embodiment of a detection device in a dual-block sleeper shape detection platform provided by the present invention.

[0021] Description of Figure Numbers:

[0022] 10. Frame; 11. First slide rail; 12. First slider; 13. Second slide rail; 14. Second slider; 20. Conveyor belt; 30. Moving assembly; 31. Moving beam; 32. Telescopic column; 321. Cylinder; 322. Column; 40. Detection equipment; 41. Connecting assembly; 411. Connecting beam; 412. Connecting shaft; 413. Rotating shaft; 414. Connecting plate; 42. Scanner; 100. Sleeper.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] In the present invention, the descriptions of directions such as "up", "down", "front", "back", "left", and "right" are as follows: Figure 1 The directions shown are for reference only and are used to explain the Figure 1 The relative position relationship between the components in the shown posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] When the existing shape detection platform performs shape detection on double-block sleepers, the scanning equipment has errors in the scanning model due to viewing angle limitations or insufficient accuracy. It cannot fully and accurately reflect the actual shape of the sleeper and the detection accuracy is low.

[0029] The present invention proposes a double-block sleeper shape detection system, including a point sticking device, a detection device, a coding device, a conveyor belt 20 and a control cabinet. The point sticking device forms a point sticking area, and the point sticking device is used to stick marking points on the surface of the sleeper 100 in the point sticking area; the detection device includes a frame 10, a moving assembly 30 and a detection device 40, the frame 10 encloses the detection area, the moving assembly 30 is movably connected to the top of the frame 10, and the detection device 40 includes a connecting component 41 and two scanners 42, and the two scanners 42 are both connected It is connected to the mobile assembly 30 through a connecting component 41, and can move together in the detection area driven by the mobile assembly 30. The two scanners 42 are used to jointly scan a sleeper 100 with a marking point attached; a coding area is formed in the coding device, and the coding device is used to code the sleeper 100 in the coding area; the conveyor belt 20 is used to transport the sleeper 100 through the dot-sticking area, the detection area and the coding area in sequence; the control cabinet is communicatively connected to the conveyor belt, the dot-sticking device, the mobile assembly 30, each scanner 42 and the coding device.

[0030] When the double-block sleeper shape detection system proposed in the present invention performs shape detection on the sleeper 100, the sleeper 100 is placed on the conveyor belt 20 and passes through the point-sticking area and the detection area in sequence. The point-sticking device is used to stick marking points on the surface of the sleeper 100 in the point-sticking area, so as to provide an accurate reference for the subsequent detection device, so that the detection device can accurately identify the surface features of the sleeper 100 to detect the shape of the sleeper 100; the control cabinet can determine whether the shape of the sleeper 100 is qualified according to the detection result of the detection device. If qualified, the control cabinet controls the conveyor belt 20 to transport the sleeper 100 to the coding area, and controls the coding device to code the sleeper 100 in the coding area; if unqualified, the coding device does not code the surface of the sleeper 100, thereby realizing automatic detection and coding processing of the shape of the sleeper 100, and by observing whether there is coding on the surface of the sleeper 100, it is possible to quickly know whether the shape of the sleeper 100 is qualified.

[0031] See also Figure 1 , Figure 1 The figure is a schematic diagram of the structure of the detection device in the dual-block sleeper shape detection system proposed in the present invention. When the detection device detects the sleepers 100 in the detection area, the moving assembly 30 drives the two scanners 42 to move together in the detection area through the connecting assembly 41, so that the two scanners 42 move to the preset position, so as to scan the sleepers 100 on the conveyor belt 20 in sequence from the preset position. The two scanners 42 scan the same sleeper 100 respectively, and obtain two scanning data respectively. The control cabinet establishes two scanning models according to the two scanning data respectively, and then obtains the final scanning model by fitting the two scanning models, so as to realize the shape detection of the sleeper 100.

[0032] The double-block sleeper shape detection system proposed in the present invention places the sleeper 100 on the conveyor belt 20, and controls the conveyor belt 20 through the control cabinet to sequentially transport the sleeper 100 to the point sticking device, the detection device and the coding device. The control cabinet can control the point sticking device to stick the marking points on the surface of the sleeper 100, and control the detection device to detect the shape of the sleeper 100. The control cabinet also controls the coding device to perform coding processing on the sleeper 100 with qualified shape, thereby realizing the automatic detection and coding of the shape of the sleeper 100. When the detection device performs shape detection on the sleeper 100, the moving assembly 30 drives the detection device 40 to move in the detection area, so that the detection device 40 can move to a preset position for detection. When the detection device 40 detects the sleeper 100, two scanners 42 are used to jointly scan the same sleeper 100, and two scanning data are obtained respectively. The control cabinet obtains two scanning models according to the two scanning data, and fits the two scanning models to obtain the final scanning model, so as to detect the shape of the sleeper 100. By fitting the two scanning models obtained by the two scanners 42 to each other, the two scanning models are mutually verified, thereby improving the reliability of the scanning models, making the final scanning model more consistent with the actual situation of the sleeper 100, and greatly improving the detection accuracy.

[0033] In one embodiment, the point sticking device includes a point sticking device and a driving member, wherein the driving member is used to drive the point sticking device to move in a direction close to or away from the sleeper 100, and the point sticking device is used to stick marking points on the surface of the sleeper 100 when approaching the sleeper 100.

[0034] It can be explained that when the driving member drives the dot sticker to gradually approach the sleeper 100 until it contacts the surface of the sleeper 100, the dot sticker can stick multiple marking points on the surface of the sleeper 100, and the multiple marking points are arranged at intervals, so that the multiple marking points can be used as reference points of the scanner 42, which is convenient for accurately scanning the shape of the sleeper 100. In one embodiment, the dot sticker is a dot sticker in the prior art, and the driving member is a cylinder in the prior art.

[0035] In one embodiment, the moving assembly 30 includes a moving beam 31 and a telescopic column 32, the moving beam 31 extends along the second horizontal direction, and the two ends of the moving beam 31 are slidably connected to the two sides of the frame 10 along the second horizontal direction, and the moving beam 31 can slide along the first horizontal direction; the second horizontal direction and the first horizontal direction are perpendicular to each other; the telescopic column 32 is slidably connected to the moving beam 31, and the lower end of the telescopic column 32 can be telescoped vertically, and the connecting component 41 is connected to the lower end of the telescopic column 32.

[0036] Please continue reading Figure 1 , Figure 1 The front-to-back direction in is the first horizontal direction. Figure 1 The left and right direction in is the second horizontal direction. Figure 1The up and down directions in the figure are the longitudinal directions. The detection device 40 is connected to the lower end of the telescopic column 32 through the connecting assembly 41. The moving beam 31 extends along the second horizontal direction, and its two ends are slidably connected to the two sides of the frame 10, so that the moving beam 31 can slide along the first horizontal direction, thereby driving the detection device 40 connected thereto to move forward and backward in the detection area; the telescopic column 32 is slidably connected to the moving beam 31, so that the telescopic column 32 can drive the detection device 40 to move left and right; the lower end of the telescopic column 32 can be telescoped vertically, so that the detection device 40 can move up and down. Through the mutual cooperation of the moving beam 31 and the telescopic column 32, the detection device 40 can be moved in multiple directions in the detection area to detect the sleeper 100 from a preset position. The design of the moving assembly 30 realizes the precise positioning and flexible movement of the detection device 40 through the combination of the moving beam 31 and the telescopic column 32.

[0037] In one embodiment, two first slide rails 11 are respectively installed on both sides of the top of the frame 10 along the second horizontal direction, each first slide rail 11 extends along the first horizontal direction, and each first slide rail 11 is provided with a first slider 12 that slides with the corresponding first slide rail 11, and the two ends of the moving beam 31 are respectively connected to the two first sliders 12.

[0038] See also Figure 2 , Figure 2 A schematic diagram of the partial structure of an embodiment of the detection device in the double-block sleeper shape detection platform provided by the present invention; each first slide rail 11 extends along the first horizontal direction, and each first slide rail 11 is provided with a first slider 12 that slides with the corresponding first slide rail 11, and each first slide rail 11 provides guidance for the corresponding first slide rail 11, so that each first slide rail 11 can move along the first horizontal direction. The two ends of the moving beam 31 are respectively connected to the two first sliders 12, and the two first sliders 12 slide synchronously to realize the movement of the moving beam 31 along the first horizontal direction, and drive the detection device 40 connected thereto to move back and forth in the detection area. Through the cooperation of the first slide rail 11 and the first slider 12, the moving beam 31 can achieve precise positioning in the detection area, ensuring that the detection device 40 can effectively detect the sleeper 100.

[0039] In one embodiment, a second slide rail 13 is installed on the top of the moving beam 31, and the second slide rail 13 extends along the second horizontal direction. A second slider 14 is provided on the second slide rail 13 and slidably cooperates with the second slide rail 13. The upper end of the telescopic column 32 is connected to the second slider 14.

[0040] Furthermore, a second slide rail 13 is installed on the top of the moving beam 31, and the slide rail extends along the second horizontal direction to provide guidance for the movement of the telescopic column 32. A second slider 14 is provided on the second slide rail 13 to slide with the second slide rail 13, so that the telescopic column 32 can slide smoothly on the second slide rail 13, thereby realizing movement along the second horizontal direction. The upper end of the telescopic column 32 is connected to the second slider 14. Such a structural design enables the telescopic column 32 to freely extend and retract on the second slide rail 13, driving the detection device 40 connected thereto to move left and right along the second horizontal direction, further enhancing the flexibility and adaptability of the detection device 40.

[0041] In one embodiment, the telescopic column 32 includes a cylinder 321 and a column 322 , the upper end of the cylinder 321 is connected to the second slider 14 , the column 322 is telescopically matched with the lower end of the cylinder 321 , and the connecting assembly 41 is connected to the lower end of the column 322 .

[0042] Please continue reading Figure 2 The upper end of the cylinder 321 is connected to the second slide block 14, so that the cylinder 321 can slide along the direction of the second slide rail 13, thereby driving the column 322 and the detection device 40 to move in the second horizontal direction. The column 322 is connected to the lower end of the cylinder 321 by telescopic cooperation, and the column 322 can be telescoped in the cylinder 321 to adjust the height and position of the detection device 40. Through the telescopic cooperation of the cylinder 321 and the column 322, the telescopic column 32 can quickly adjust the height of the detection device 40 in different detection scenarios to adapt to sleepers 100 of different sizes, thereby improving the flexibility of the detection device 40.

[0043] In one embodiment, the connecting component 41 includes a connecting beam 411, a connecting shaft 412, a rotating shaft 413 and a connecting plate 414. The two ends of the connecting beam 411 are connected between the two scanners 42. The rotating shaft 413 passes through the middle of the connecting beam 411 along the first horizontal direction. The connecting beam 411 can rotate around the rotating shaft 413 to drive the two scanners 42 to rotate synchronously. The connecting shaft 412 and the rotating shaft 413 are arranged at intervals up and down. The connecting shaft 412 passes through the lower end of the column 322 along the first horizontal direction, and the connecting plate 414 is connected between the connecting shaft 412 and the rotating shaft 413.

[0044] See also Figure 3 , Figure 3The schematic diagram of the structure of an embodiment of the detection device 40 in the double-block sleeper shape detection platform provided by the present invention. The two ends of the connecting beam 411 are connected between the two scanners 42 to connect the two scanners 42 into one body, and the rotating shaft 413 is arranged in the middle of the connecting beam 411 along the first horizontal direction, and the connecting beam 411 can rotate around the rotating shaft 413, so that the two scanners 42 can rotate synchronously, ensuring that the scanner 42 can perform a full range of scanning on the sleeper 100 from different angles during the detection process. The rotation ability of the connecting beam 411 enhances the flexibility of the system, so that the detection device 40 can adapt to more detection scenarios.

[0045] In one embodiment, the number of the connecting plates 414 is two, and the end of the connecting shaft 412 and the end of the rotating shaft 413 located on the same side are connected through a connecting plate 414 .

[0046] Furthermore, the end of the connecting shaft 412 and the end of the rotating shaft 413 on the same side are connected by a connecting plate 414, and the other connecting plate 414 is connected to the corresponding end on the other side, so that the two connecting plates 414 are respectively located at the two ends of the connecting shaft 412 and the rotating shaft 413 to provide stable support for the connecting shaft 412 and the rotating shaft 413, so that the force distribution between the connecting shaft 412 and the rotating shaft 413 is more uniform, thereby improving the stability and durability of the entire connecting assembly 41.

[0047] In one embodiment, the dual-block sleeper shape detection system further includes a position sensor, and the position sensor is used to detect the position of the sleeper 100 .

[0048] It can be explained that the position sensor is used to detect the position of each sleeper 100 on the conveyor belt 20, so as to control the conveying speed of the conveyor belt 20 according to the position of the sleeper 100, and correspondingly control the point sticking device, the detection device and the coding device to process the sleeper 100. When the detection device detects the sleeper 100, the position of the sleeper 100 in the detection area is accurately obtained by the position sensor, so that the detection device 40 is always in the best detection position, so as to perform a comprehensive detection of the sleeper 100, effectively improving the efficiency and accuracy of the detection, reducing the need for manual operation, and also reducing the possibility of operation errors.

[0049] The present invention also proposes a method for detecting the appearance of a double-block sleeper. The method for detecting the appearance of a double-block sleeper applies the above-mentioned double-block sleeper appearance detection system. The specific structure of the double-block sleeper appearance detection system refers to the above-mentioned embodiment. Since the present method for detecting the appearance of a double-block sleeper adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0050] Among them, the double-block sleeper shape detection method proposed in the present invention utilizes a double-block sleeper shape detection system to detect the shape of the sleeper 100, by placing the sleeper 100 on the conveyor belt 20 and passing through the point-sticking area and the detection area in turn, the point-sticking device is used to stick marking points on the surface of the sleeper 100 in the point-sticking area, so as to provide an accurate reference for the subsequent detection device, so that the detection device can accurately identify the surface features of the sleeper 100 to detect the shape of the sleeper 100; the control cabinet can judge whether the shape of the sleeper 100 is qualified according to the detection result of the detection device. If qualified, the control cabinet controls the conveyor belt 20 to transport the sleeper 100 to the coding area, so that the coding device sprays the sleeper 100 in the coding area; if unqualified, the coding device does not spray the surface of the sleeper 100, thereby realizing the automatic shape detection and coding processing of the sleeper 100, and by observing whether there is a coding on the surface of the sleeper 100, it is possible to quickly obtain whether the shape of the sleeper 100 meets the requirements.

[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A double-block sleeper shape detection system, characterized in that: include: A point sticking device, wherein a point sticking area is formed in the point sticking device, and the point sticking device is used to stick marking points on the sleeper surface in the point sticking area; A detection device, the detection device comprising a frame, a mobile assembly and a detection device, the frame encloses a detection area, the mobile assembly is movably connected to the top of the frame, the detection device comprises a connecting component and two scanners, both of the two scanners are connected to the mobile assembly through the connecting component, and can move together in the detection area under the drive of the mobile assembly, and the two scanners are used to jointly scan a sleeper with the marking point attached thereto; A coding device, wherein a coding area is formed in the coding device, and the coding device is used to code the sleepers in the coding area; A conveyor belt, the conveyor belt is used to transport the sleeper through the point-sticking area, the detection area and the coding area in sequence; A control cabinet is communicatively connected to the conveyor belt, the dot sticking device, the moving assembly, each of the scanners and the coding device.

2. The dual-block sleeper shape detection system according to claim 1, characterized in that: The point sticking device includes a point sticking device and a driving member, wherein the driving member is used to drive the point sticking device to move in a direction close to or away from the sleeper, and the point sticking device is used to stick the marking point on the surface of the sleeper when approaching the sleeper.

3. The dual-block sleeper shape detection system according to claim 1, characterized in that: The moving assembly includes a moving beam and a telescopic column, the moving beam extends along a second horizontal direction, and two ends of the moving beam are slidably connected to two sides of the frame along the second horizontal direction, and the moving beam can slide along a first horizontal direction; the second horizontal direction and the first horizontal direction are perpendicular to each other; the telescopic column is slidably connected to the moving beam, and the lower end of the telescopic column can be telescoped vertically, and the connecting component is connected to the lower end of the telescopic column.

4. The dual-block sleeper shape detection system according to claim 3, characterized in that: Two first slide rails are respectively installed on both sides of the top of the frame along the second horizontal direction, each of the first slide rails extends along the first horizontal direction, and each of the first slide rails is provided with a first slider that slides with the corresponding first slide rail, and the two ends of the moving beam are respectively connected to the two first sliders.

5. The dual-block sleeper shape detection system according to claim 4, characterized in that: A second slide rail is installed on the top of the moving beam. The second slide rail extends along the second horizontal direction. A second slider slidably matched with the second slide rail is arranged on the second slide rail. The upper end of the telescopic column is connected to the second slider.

6. The dual-block sleeper shape detection system according to claim 5, characterized in that: The telescopic column comprises a cylinder and a column, the upper end of the cylinder is connected to the second sliding block, the column is telescopically matched with the lower end of the cylinder, and the connecting assembly is connected to the lower end of the column.

7. The dual-block sleeper shape detection system according to claim 6, characterized in that: The connecting assembly includes a connecting beam, a connecting shaft, a rotating shaft and a connecting plate, the two ends of the connecting beam are connected between the two scanners, the rotating shaft passes through the middle of the connecting beam along the first horizontal direction, and the connecting beam can rotate around the rotating shaft to drive the two scanners to rotate synchronously; the connecting shaft and the rotating shaft are arranged with an upper and lower interval, the connecting shaft passes through the lower end of the column along the first horizontal direction, and the connecting plate is connected between the connecting shaft and the rotating shaft.

8. The dual-block sleeper shape detection system according to claim 7, characterized in that: The number of the connecting plates is two, and the end of the connecting shaft and the end of the rotating shaft located on the same side are connected through one of the connecting plates.

9. The dual-block sleeper shape detection system according to any one of claims 1 to 8, characterized in that: The dual-block sleeper shape detection system further comprises a position sensor, and the position sensor is used to detect the position of the sleeper.

10. A method for detecting the shape of a double-block sleeper, characterized in that: A dual-block sleeper shape detection system as described in any one of claims 1 to 9 is used.

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