Double-block type sleeper appearance detection platform and double-block type sleeper production line

By adopting the design of mobile assembly and dual scanner in the dual-block sleeper shape detection platform, the problems of limited viewing angle and insufficient accuracy of scanning equipment are solved, and high-precision sleeper shape detection is achieved.

CN223354545UActive Publication Date: 2025-09-19CHINA RAILWAY 11TH BUREAU GRP CORP LTD +2
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Patent Information

Application Number
CN202422657732.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-19
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

When existing scanning equipment performs shape inspection on double-block sleepers, due to viewing angle limitations or insufficient precision, errors occur in the scanning model and the inspection accuracy is low.

Method used

A dual-block sleeper shape detection platform is used, including a frame, conveyor belt, mobile assembly and detection equipment. The mobile assembly drives two scanners to move within the detection area, obtaining two sets of scanning data respectively. The final scanning model is obtained through fitting to improve detection accuracy.

Benefits of technology

By fitting the scanner's double scanning data, the detection accuracy is improved, making the final scanning model more consistent with the actual situation of the sleeper, greatly improving the accuracy and efficiency of detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-block type sleeper appearance detection platform and a double-block type sleeper production line, and relates to the technical field of sleeper production, the double-block type sleeper appearance detection platform comprises a frame, a conveyor belt, a moving assembly and a detection device, the frame encloses to form a detection area; the conveying belt is arranged in the detection area and used for conveying sleepers in the first horizontal direction; the moving assembly is movably connected to the top of the frame; the detection equipment comprises a connecting assembly and two scanners, the two scanners are connected to the moving assembly through the connecting assembly, can be driven by the moving assembly to move together in the detection area, and are distributed in a spaced mode in the second horizontal direction; the second horizontal direction is perpendicular to the first horizontal direction; the two scanners are used for scanning the same sleeper on the transmission belt together. The same sleeper is scanned through the two scanners, and the two scanning models are mutually fitted to obtain the final scanning model, so that the detection precision is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of sleeper production, in particular to a double-block sleeper shape detection platform and a double-block sleeper production line. Background Art

[0002] In railway construction, bi-block sleepers are crucial prefabricated components. Composed of two concrete sleeper halves joined together by connectors, they support the track and distribute the pressure of passing trains. During bi-block sleeper production, dimensional accuracy is crucial to ensuring railway safety and extending service life. Therefore, dimensional inspection is an integral part of the production process.

[0003] During the traditional production of twin-block sleepers, shape inspection relies primarily on manual labor. This method is not only inefficient but also difficult to ensure the accuracy and consistency of the test results. With technological advancements, automated scanning equipment has gradually been introduced for the shape inspection of twin-block sleepers. These devices typically utilize 3D laser scanning technology, automatically acquiring 3D point cloud data of the sleeper and analyzing and processing it through software to verify the sleeper's overall dimensions.

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

[0005] The main purpose of the utility model is to propose a double-block sleeper shape detection platform and a double-block sleeper production line, aiming to solve the technical problem in the existing technology that when scanning equipment performs shape detection on double-block sleepers, the scanning equipment is limited by viewing angle or insufficient accuracy, resulting in errors in the scanning model and low detection accuracy.

[0006] To achieve the above-mentioned purpose, the double-block sleeper shape detection platform proposed in the utility model includes a frame, a conveyor belt, a mobile assembly and a detection device, wherein the frame encloses a detection area; the conveyor belt is arranged in the detection area, and the transmission belt is used to transport the sleeper along a first horizontal direction; the mobile assembly is movably connected to the top of the frame; the detection device includes a connecting component and two scanners, both of which 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 spaced apart along the second horizontal direction; the second horizontal direction and the first horizontal direction are perpendicular to each other; the two scanners are used to jointly scan the same sleeper on the transmission belt.

[0007] In one embodiment, the moving assembly includes a moving beam and a telescopic column, the moving beam extends along the second horizontal direction, and the two ends of the moving beam are slidably connected to the two sides of the frame along the second horizontal direction, and the moving beam can slide along the first horizontal direction; 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.

[0008] 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 first slide rail extends along the first horizontal direction, and each first slide rail 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.

[0009] 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 is provided on the second slide rail and slides with the second slide rail, and the upper end of the telescopic column is connected to the second slider.

[0010] 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.

[0011] In one embodiment, 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 at intervals above and below, 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.

[0012] 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.

[0013] In one embodiment, the connecting assembly further includes a driving member, and the driving member is used to drive the connecting beam to rotate around the rotating shaft.

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

[0015] The utility model also provides a double-block sleeper production line, which comprises the above-mentioned double-block sleeper appearance detection platform.

[0016] The dual-block sleeper appearance detection platform and dual-block sleeper production line proposed in the present invention use a mobile assembly to drive the detection equipment to move within the detection area, so that the detection equipment can move to a preset position and detect the sleepers on the conveyor belt. When the detection equipment detects the sleepers, two scanners are used to scan the same sleeper together, and two sets of scanning data are obtained respectively. The control cabinet of the dual-block sleeper production line can obtain two scanning models based on the two sets of scanning data, and then fit the two scanning models to obtain the final scanning model, thereby realizing the detection of the sleeper's appearance. By fitting the two scanning models obtained by the two scanners to each other, the two scanning models are mutually verified, the reliability of the scanning model is improved, the final scanning model is made to be more in line with the actual situation of the sleeper, and the detection accuracy is greatly improved. In addition, when the conveyor belt transports multiple sleepers through the detection area, the two scanners can quickly and continuously detect the sleepers. The conveying process of the conveyor belt and the detection process of the detection equipment are carried out simultaneously, effectively improving the detection efficiency. 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0018] Figure 1 This is a structural diagram of an embodiment of a dual-block sleeper shape detection platform provided by the present utility model;

[0019] Figure 2 This is a partial structural diagram of an embodiment of a dual-block sleeper shape detection platform provided by the present utility model;

[0020] Figure 3 This is a structural schematic diagram of an embodiment of the detection equipment of the double-block sleeper shape detection platform provided by the utility model.

[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 embodiments described 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 making creative efforts shall fall 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 indications 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 for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. 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 mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0027] In this utility model, 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 positional relationship between the components in the shown posture. If the specific posture changes, the directional indication will also change accordingly.

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

[0029] The utility model proposes a double-block rail sleeper shape detection platform, including a frame 10, a conveyor belt 20, a moving assembly 30 and a detection device 40, the frame 10 encloses a detection area; the conveyor belt 20 is arranged in the detection area, and the transmission belt is used to transport the rail sleeper 100 along a first horizontal direction; the moving assembly 30 is movably connected to the top of the frame 10; the detection device 40 includes a connecting component 41 and two scanners 42, the two scanners 42 are both connected to the moving assembly 30 through the connecting component 41, and can move together in the detection area under the drive of the moving assembly 30, the two scanners 42 are spaced apart along the second horizontal direction; the second horizontal direction and the first horizontal direction are perpendicular to each other; the two scanners 42 are used to jointly scan the same rail sleeper 100 on the transmission belt.

[0030] See also Figure 1 , Figure 1 The front-to-back direction in is the first horizontal direction. Figure 1 The left and right directions in are the second horizontal directions. Figure 1 The vertical direction is the longitudinal direction. A conveyor belt 20 is disposed within the inspection area and is used to transport the sleepers 100 along a first horizontal direction, ensuring that the sleepers 100 continuously pass through the inspection area. A moving assembly 30 is movably connected to the top of the frame 10. An inspection device 40 is connected to the moving assembly 30 and extends into the inspection area, enabling the inspection device 40 to perform external appearance inspections on the sleepers 100 on the conveyor belt.

[0031] The dual-block sleeper shape detection platform proposed in the present invention is applied to a dual-block sleeper production line, which also includes a control cabinet and a coding platform. When the dual-block sleeper shape detection platform of the present invention detects the shape of the sleepers 100, multiple sleepers 100 are moved along the first horizontal direction under the conveyor belt 20. At the same time, the moving assembly 30 drives the two scanners 42 to move together within the detection area through the connecting component 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 sets of scanning data respectively. It can be understood that the control cabinet of the dual-block sleeper production line can obtain two scanning models based on the two sets of scanning data, and then obtain the final scanning model by fitting the two scanning models, so as to realize the shape detection of the sleepers 100.

[0032] The dual-block sleeper shape inspection platform proposed in the present invention uses a moving assembly 30 to drive an inspection device 40 within an inspection area, enabling the inspection device 40 to move to a preset position and inspect the sleepers 100 on the conveyor belt 20. When inspecting a sleeper 100, the inspection device 40 uses two scanners 42 to scan the same sleeper 100, obtaining two sets of scan data. The control cabinet of the dual-block sleeper production line then generates two scan models based on the two sets of scan data. These two scan models are then fitted to obtain a final scan model, enabling the inspection of the sleeper 100 shape. By fitting the two scan models obtained by the two scanners 42, the two scan models are mutually verified, improving the reliability of the scan models and ensuring that the final scan model is more consistent with the actual conditions of the sleeper 100, significantly enhancing inspection accuracy. Furthermore, when the conveyor belt 20 transports multiple sleepers 100 through the inspection area, the two scanners 42 can rapidly and continuously inspect the sleepers 100. The conveying process of the conveyor belt 20 and the inspection process of the inspection device 40 are performed simultaneously, effectively improving inspection efficiency.

[0033] 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 telescopic column 32 is slidably connected to the moving beam 31, and the lower end of the telescopic column 32 can be telescoped vertically. The connecting component 41 is connected to the lower end of the telescopic column 32.

[0034] As can be understood, the detection device 40 is connected to the lower end of the telescopic column 32 via a connecting assembly 41. The movable beam 31 extends along the second horizontal direction, with its ends slidably connected to the sides of the frame 10, allowing the movable beam 31 to slide along the first horizontal direction, thereby driving the detection device 40 connected thereto to move forward and backward within the detection area. The telescopic column 32 is slidably connected to the movable beam 31, allowing it to drive the detection device 40 to move left and right. The lower end of the telescopic column 32 can be vertically extended and retracted, allowing the detection device 40 to move up and down. The interaction between the movable beam 31 and the telescopic column 32 enables the detection device 40 to move in multiple directions within the detection area, thereby inspecting the sleeper 100 from a preset position. The design of the movable assembly 30, through the combination of the movable beam 31 and the telescopic column 32, achieves precise positioning and flexible movement of the detection device 40.

[0035] 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 movable beam 31 are respectively connected to the two first sliders 12.

[0036] See also Figure 2 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. 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 movable beam 31 are respectively connected to the two first sliders 12. The two first sliders 12 slide synchronously, so that the movable beam 31 moves along the first horizontal direction and drives the detection device 40 connected thereto to move back and forth within the detection area. Through the cooperation of the first slide rail 11 and the first slider 12, the movable beam 31 can achieve precise positioning within the detection area, ensuring that the detection device 40 can effectively detect the sleeper 100.

[0037] 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 slides with the second slide rail 13. The upper end of the telescopic column 32 is connected to the second slider 14.

[0038] Furthermore, a second rail 13 is mounted on the top of the movable beam 31. This rail extends along the second horizontal direction and provides guidance for the movement of the telescopic column 32. A second slider 14 is provided on the second rail 13, which slidably engages with the second rail 13, enabling the telescopic column 32 to slide smoothly on the second rail 13, thereby achieving movement along the second horizontal direction. The upper end of the telescopic column 32 is connected to the second slider 14. This structural design allows the telescopic column 32 to freely extend and retract on the second 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.

[0039] 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 . The connecting assembly 41 is connected to the lower end of the column 322 .

[0040] Please continue reading Figure 2 The upper end of the cylinder 321 is connected to the second slide block 14, allowing the cylinder 321 to slide along 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 a telescopic fit. The column 322 can be extended and retracted within the cylinder 321 to adjust the height and position of the detection device 40. Through the telescopic fit 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 accommodate sleepers 100 of different sizes, thereby improving the flexibility of the detection device 40.

[0041] 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 above and below, and the connecting shaft 412 passes through the lower end of the column 322 along the first horizontal direction. The connecting plate 414 is connected between the connecting shaft 412 and the rotating shaft 413.

[0042] See also Figure 3 The two ends of the connecting beam 411 are connected between the two scanners 42 to connect the two scanners 42 into one body. The rotating shaft 413 is provided in the middle of the connecting beam 411 along the first horizontal direction. The connecting beam 411 can rotate about the rotating shaft 413, so that the two scanners 42 can rotate synchronously, ensuring that the scanners 42 can perform a full range of scanning of the sleeper 100 from different angles during the inspection process. The rotating ability of the connecting beam 411 enhances the flexibility of the system, allowing the inspection device 40 to adapt to a variety of inspection scenarios.

[0043] In one embodiment, there are two connecting plates 414 , and the end of the connecting shaft 412 and the end of the rotating shaft 413 on the same side are connected via a connecting plate 414 .

[0044] 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.

[0045] In one embodiment, the connecting assembly 41 further includes a driving member, which is used to drive the connecting beam 411 to rotate around the rotating shaft 413 .

[0046] It can be understood that the driving member drives the connecting beam 411 to rotate around the rotating shaft 413, so that the connecting beam 411 can be automatically rotated, thereby enabling the scanning angle of the scanner 42 to be automatically adjusted, facilitating precise control of the rotation angle of the scanner 42 and improving detection efficiency and detection accuracy.

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

[0048] It can be explained that the integration of the position sensor allows the detection platform to automatically adjust the position of the detection device 40 to adapt to the sleepers 100 in different positions, ensuring that the detection device 40 is always in the optimal detection position to perform a comprehensive detection of the sleepers 100, effectively improving the efficiency and accuracy of the detection, reducing the need for manual operation, and also reducing the possibility of operational errors.

[0049] The present utility model also proposes a double-block sleeper production line, which includes a control cabinet, a coding platform and the above-mentioned double-block sleeper appearance detection platform. The specific structure of the double-block sleeper appearance detection platform refers to the above-mentioned embodiment. Since the present double-block sleeper production line adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0050] After the sleepers 100 are cast and formed, the dual-block sleeper production line uses a dual-block sleeper shape detection platform to inspect the shape of the sleepers 100. When the detection equipment 40 inspects the sleepers 100, two scanners 42 jointly scan the same sleeper 100 and obtain two sets of scan data. The control cabinet then obtains two scan models based on the two sets of scan data, and then fits the two scan models to obtain a final scan model, thereby inspecting the shape of the sleepers 100. After the sleepers 100 pass the shape inspection, the control cabinet controls the coding platform to inkjet the sleepers 100. By fitting the two scan models obtained by the two scanners 42, the two scan models are mutually verified, improving the reliability of the scan models, making the final scan model more consistent with the actual conditions of the sleepers 100, and significantly improving inspection accuracy.

[0051] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A double-block sleeper shape detection platform, characterized in that: include: a frame, wherein the frame encloses a detection area; a conveyor belt, the conveyor belt being arranged in the detection area and being used for conveying the sleeper along a first horizontal direction; a moving assembly movably connected to the top of the frame; A detection device, comprising a connecting component and two scanners, wherein the two scanners are connected to the moving assembly via the connecting component and can move together within the detection area driven by the moving assembly, the two scanners are spaced apart along a second horizontal direction; the second horizontal direction and the first horizontal direction are perpendicular to each other; the two scanners are used to jointly scan the same rail sleeper on the conveyor belt.

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

3. The dual-block sleeper shape detection platform according to claim 2, 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 first slide rail extends along the first horizontal direction, and each first slide rail 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.

4. The dual-block sleeper shape detection platform according to claim 3, characterized in that: 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 that slides with the second slide rail is provided on the second slide rail. The upper end of the telescopic column is connected to the second slider.

5. The dual-block sleeper shape detection platform according to claim 4, characterized in that: 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.

6. The dual-block sleeper shape detection platform according to claim 5, 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. 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 at intervals above and below. 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.

7. The dual-block sleeper shape detection platform according to claim 6, characterized in that: There are two connecting plates, 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.

8. The dual-block sleeper shape detection platform according to claim 6, characterized in that: The connecting assembly further includes a driving member, which is used to drive the connecting beam to rotate around the rotating shaft.

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

10. A double-block sleeper production line, characterized in that: It comprises a dual-block sleeper shape detection platform as claimed in any one of claims 1 to 9.