Automatic measuring machine for railway passenger car axle box

Abstract

This utility model discloses an automatic measuring machine for railway passenger car wheel axle boxes, belonging to the field of railway passenger car wheel axle box technology. It includes a frame and a measuring mechanism, which is installed at the left end of a horizontal moving support. The measuring mechanism includes a first mounting plate and a second mounting plate, both with diameter measuring components on their left end faces. A control cabinet controls the activation of a horizontal moving cylinder. The activation of the cylinder, through its output end, moves the horizontal moving support along the length of a horizontal moving guide rail. This movement causes the measuring mechanism to move closer to the axle box, transmitting an electrical signal to the control cabinet. The control cabinet then controls the horizontal moving cylinder to close. The diameter measuring components on the first and second mounting plates measure the inner diameter at both ends of the axle box, the depth measuring component measures the depth of the axle box, and two cross-sectional measuring components measure the cross-sectional height at both ends of the axle box. The measurement data is then transmitted to a data detection system.

Description

Technical Field

[0001] This utility model relates to the field of railway passenger car wheel axle box technology, and more specifically, to an automatic measuring machine for railway passenger car wheel axle boxes. Background Technology

[0002] In the field of railway passenger car wheel axle maintenance, the measurement and inspection of wheelset axle boxes is a crucial process for ensuring wheel axle performance and railway operation safety. According to the railway passenger car wheel axle maintenance process, high-precision measurements are required for several key components of the wheelset axle box, including two depth values ​​in the symmetrical direction, two horizontal and vertical values ​​at a cross-section 20-40mm below the end face, and two horizontal and vertical values ​​at a cross-section 20-40mm above the bottom of the hole. Both depth and diameter accuracy must reach ±0.01mm, and the measurement data must be uploaded to a KMS database for management.

[0003] However, in existing technologies, this measurement work is mainly done manually by staff: staff need to manually record data while measuring, then input the data into the computer one by one, and then upload it to the KMS system. This method has many shortcomings: firstly, the manual measurement, recording and input process is cumbersome, inefficient, and consumes a lot of manpower and time; secondly, manual operation is prone to errors, which may lead to inaccurate data, thereby affecting the judgment of the axle box status and posing a hidden danger to the safe operation of railway passenger cars.

[0004] In view of this, the present invention is proposed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic measuring machine for railway passenger car wheel axle boxes, so as to realize the automation, high precision and intelligent data transmission of existing axle box measurement, improve the existing cumbersome manual operation process, and improve maintenance efficiency and data reliability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An automatic measuring machine for railway passenger car wheel axle boxes includes: The frame is equipped with a horizontal moving guide rail, and a horizontal moving support is installed on the horizontal moving guide rail. The horizontal moving support moves along the horizontal moving guide rail via a horizontal moving cylinder. A control cabinet is also installed on the frame. The measuring mechanism is installed on the left end of the horizontal moving support. The measuring mechanism includes a first mounting plate and a second mounting plate. Both the left end faces of the first and second mounting plates are provided with diameter measuring components. The left end of the first mounting plate is also provided with a depth measuring component. The second mounting plate is also provided with a diameter measuring sensor and a depth measuring sensor. The diameter measuring sensor and the depth measuring sensor are respectively connected to the control cabinet via electrical signals. Both the left end faces of the first and second mounting plates are provided with cross-section measuring components.

[0007] Furthermore, the diameter measuring assembly includes multiple diameter measuring probes, which are evenly arranged along the circumference of the first mounting plate / second mounting plate, and each diameter measuring probe is connected to a probe delivery and take-up mechanism; A diameter measuring probe take-up and release shaft is provided between the first mounting plate and the second mounting plate. A diameter measuring probe take-up and release cylinder is provided at the right end of the second mounting plate. The output end of the diameter measuring probe take-up and release cylinder is fixedly connected to the diameter measuring probe take-up and release shaft. The diameter measuring probe take-up and release shaft is hinged to the probe take-up and release mechanism.

[0008] Furthermore, multiple guide sleeves are evenly arranged along the circumference of the right end of the first mounting plate, and multiple guide posts that cooperate with the multiple guide sleeves are evenly arranged along the circumference of the left end of the second mounting plate. The guide posts extend into the corresponding guide sleeves, and a stroke adjustment spring is fitted between the guide post and the left end face of the second mounting plate.

[0009] Furthermore, a depth measuring ruler is vertically installed on the left end face of the second mounting plate.

[0010] Furthermore, the depth measurement component includes a depth measurement column, which is mounted on the left end face of the first mounting plate via a mounting cylinder, and a measurement column reset spring is provided inside the mounting cylinder, while a depth positioning plate is fitted on the outer peripheral wall of the mounting cylinder.

[0011] Furthermore, the cross-section measuring component consists of two cross-section measuring rulers, which are respectively set along the vertical and horizontal directions of the left end face of the second mounting plate or the first mounting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When measuring the axle box, the axle box is first fixed on a dedicated positioning frame. Then, the horizontal moving cylinder is started by controlling the control cabinet. The start of the horizontal moving cylinder drives the horizontal moving support to move along the length of the horizontal moving guide rail through its output end. The movement of the horizontal moving support drives the entire measuring mechanism to move closer to the axle box until the measuring mechanism is fully inserted into the axle box. When the left end of the depth measuring component abuts against the left edge of the axle box, the depth measuring sensor is subjected to force and transmits an electrical signal to the control cabinet. The control cabinet then controls the horizontal moving cylinder to close. At this time, the diameter measuring components on the first and second mounting plates measure the inner diameter at both ends of the axle box, the depth measuring component measures the depth of the axle box, and the two cross-section measuring components measure the cross-sectional height at both ends of the axle box. The measurement data is transmitted to the data detection system. This eliminates the need for manual measurement and data recording by staff, reducing the labor intensity of staff, improving detection efficiency, avoiding errors caused by manual measurement, and ensuring the accuracy of the data. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the axle box structure provided in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the automatic measuring machine for railway passenger car wheel axle boxes provided in the embodiments of this application; Figure 3 A schematic diagram of the measuring mechanism of the automatic measuring machine for railway passenger car wheel axle box provided in the embodiments of this application; Figure 4 for Figure 3 The left view.

[0014] Reference numerals: 1. Shaft box; 2. Measuring point; 3. Frame; 4. Horizontal moving guide rail; 5. Horizontal moving cylinder; 6. Horizontal moving support; 7. Second mounting plate; 8. First mounting plate; 9. Depth measuring column; 10. Depth positioning plate; 11. Measuring column return spring; 12. Diameter measuring probe retraction shaft; 13. Diameter measuring probe; 14. Depth measuring ruler; 15. Guide sleeve; 16. Guide column; 17. Stroke adjusting spring; 18. Diameter measuring probe retraction cylinder; 19. Probe retraction mechanism. Detailed Implementation

[0015] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0016] See Figures 1 to 4 As shown, an automatic measuring machine for railway passenger car wheel axle boxes includes: a frame 3 and a measuring mechanism. A horizontal moving guide rail 4 is provided on the frame 3, and a horizontal moving support 6 is provided on the horizontal moving guide rail 4. The horizontal moving support 6 moves along the horizontal moving guide rail 4 via a horizontal moving cylinder 5. A control cabinet is also provided on the frame 3. The horizontal moving cylinder 5 is electrically connected to the control cabinet. The measuring mechanism is installed at the left end of the horizontal moving support 6. The measuring mechanism includes a first mounting plate 8 and a second mounting plate 7. A diameter measuring component is provided on the left end face of both the first mounting plate 8 and the second mounting plate 7. A depth measuring component is also provided on the left end face of the first mounting plate 8. A diameter measuring sensor and a depth measuring sensor are also provided on the second mounting plate 7. The diameter measuring sensor and the depth measuring sensor are electrically connected to the control cabinet. A cross-section measuring component is provided on the left end face of both the first mounting plate 8 and the second mounting plate 7.

[0017] It should be noted that the automatic measuring machine for railway passenger car wheel axle boxes provided in this application can work independently or be assembled onto a three-dimensional storage warehouse for axle boxes; the axle box 1 to be measured has multiple measuring points 2, which correspond to the diameter measuring component and the depth measuring component respectively; when measuring the axle box 1, the left end face of the second mounting plate 7 abuts against the right end face of the axle box 1.

[0018] In the above scheme, when measuring the axle box 1, the axle box 1 is first fixed on a special positioning frame. Then, the horizontal moving cylinder 5 is started by controlling the control cabinet. The start of the horizontal moving cylinder 5 drives the horizontal moving support 6 to move along the length of the horizontal moving guide rail 4 through its output end. The movement of the horizontal moving support 6 drives the entire measuring mechanism to move closer to the axle box 1 until the measuring mechanism is fully inserted into the axle box 1. When the left end of the depth measuring component abuts against the left edge of the axle box 1, the depth measuring sensor is subjected to force and transmits an electrical signal to the control cabinet. The control cabinet controls the horizontal moving cylinder 5 to close. At this time, the diameter measuring components on the first mounting plate 8 and the second mounting plate 7 measure the inner diameter of both ends of the axle box 1, the depth measuring component measures the depth of the axle box 1, and the two cross-section measuring components measure the cross-sectional height of both ends of the axle box 1. The measurement data is transmitted to the data detection system. There is no need for staff to manually measure and record data, which reduces the labor intensity of staff, improves detection efficiency, avoids errors caused by manual measurement, and ensures the accuracy of data.

[0019] See some possible implementations. Figure 3 and Figure 4 As shown, the diameter measuring assembly includes multiple diameter measuring probes 13, which are evenly arranged along the circumference of the first mounting plate 8 / second mounting plate 7. Each diameter measuring probe 13 is connected to a probe take-up and release mechanism 19. A diameter measuring probe take-up and release shaft 12 is arranged between the first mounting plate 8 and the second mounting plate 7. A diameter measuring probe take-up and release cylinder 18 is arranged at the right end of the second mounting plate 7. The diameter measuring probe take-up and release cylinder 18 is electrically connected to the control cabinet. The output end of the diameter measuring probe take-up and release cylinder 18 is fixedly connected to the diameter measuring probe take-up and release shaft 12. The diameter measuring probe take-up and release shaft 12 is hinged to the probe take-up and release mechanism 19. (The needle take-up and release mechanism 19 in this application directly adopts the prior art. This application does not describe the specific structure of the needle take-up and release mechanism 19 in detail.)

[0020] In the above scheme, when measuring the diameter of the axle box 1, the control cabinet controls the diameter measuring probe retraction cylinder 18 to start. The start of the diameter measuring probe retraction cylinder 18 drives the diameter measuring probe retraction shaft 12 to extend through its output end. The extension of the diameter measuring probe retraction shaft 12 drives the diameter measuring probe 13 to extend through the probe retraction mechanism 19 and contact the corresponding measurement point 2 on the inner wall of the axle box 1. The diameter measuring sensor transmits the extension amount of the diameter measuring probe 13 to the control cabinet to complete the diameter measurement. After the measurement is completed, the diameter measuring probe retraction cylinder 18 controls the diameter measuring probe retraction shaft 12 to retract. The retraction of the diameter measuring probe retraction shaft 12 drives the diameter measuring probe 13 to retract through the needle retraction mechanism 19.

[0021] See some possible implementations. Figure 3 As shown, multiple guide sleeves 15 are evenly arranged along the circumference of the right end of the first mounting plate 8, and multiple guide posts 16 that cooperate with the guide sleeves 15 are evenly arranged along the circumference of the left end of the second mounting plate 7. Generally, two guide sleeves 15 and guide posts 16 are arranged horizontally or vertically, with the guide post 16 partially extending into the corresponding guide sleeve 15. A stroke adjustment spring 17 is fitted between the guide post 16 and the left end face of the second mounting plate 7. A depth measuring gauge 14 is vertically arranged on the left end face of the second mounting plate 7.

[0022] In the above scheme, after the left end of the depth measuring component contacts the inner edge of the left end of the axle box 1, the horizontal moving support 6 continues to move to the left and drives the guide post 16 to extend into the guide sleeve 15, compressing the stroke adjusting spring 17 until the left end face of the second mounting plate 7 abuts against the right end face of the axle box 1. At this time, the depth measuring sensor transmits an electrical signal to the control cabinet, and the control cabinet controls the horizontal moving cylinder 5 to close. At this time, the depth measuring ruler 14 transmits the measured depth data to the control cabinet. After the measurement is completed, the horizontal moving cylinder 5 is started. The horizontal moving cylinder 5 drives the horizontal moving support 6 to move to the right, thereby driving the entire measuring mechanism to move out of the axle box 1. At this time, under the action of the stroke adjusting spring 17, the guide post 16 slowly slides out of the guide sleeve 15.

[0023] See some possible implementations. Figure 3 As shown, the depth measurement assembly includes a depth measurement column 9, which is mounted on the left end face of the first mounting plate 8 via a mounting cylinder. A measurement column reset spring 11 is provided inside the mounting cylinder, and a depth positioning plate 10 is fitted on the outer peripheral wall of the mounting cylinder.

[0024] In the above scheme, when the depth measurement is performed, as the first mounting plate 8 and the second mounting plate 7 move to the left, the depth measuring column 9 first abuts against the inner edge of the axle box 1, and then the left end face of the second mounting plate 7 abuts against the right end face of the box 1. During this process, the measuring column reset spring 11 is compressed, and the depth positioning plate 10 abuts against the other edge of the inner left end of the axle box 1.

[0025] See some possible implementations. Figure 3 As shown, the cross-section measuring component consists of two cross-section measuring rulers, which are respectively set along the vertical and horizontal directions of the left end face of the second mounting plate 7 or the first mounting plate 8, and are used to measure the cross-sectional height at both ends of the second mounting plate 7 or the first mounting plate 8.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic measuring machine for railway car wheel axle boxes, characterized in that, include: A frame (3) is provided with a horizontal moving guide rail (4), and a horizontal moving support (6) is provided on the horizontal moving guide rail (4). The horizontal moving support (6) moves along the horizontal moving guide rail (4) by a horizontal moving cylinder (5). A control cabinet is also provided on the frame (3). The measuring mechanism is installed on the left end of the horizontal moving support (6). The measuring mechanism includes a first mounting plate (8) and a second mounting plate (7). The left end face of the first mounting plate (8) and the second mounting plate (7) is provided with a diameter measuring component. The left end of the first mounting plate (8) is also provided with a depth measuring component. The second mounting plate (7) is also provided with a diameter measuring sensor and a depth measuring sensor. The diameter measuring sensor and the depth measuring sensor are respectively connected to the control cabinet by electrical signal. The left end face of the first mounting plate (8) and the second mounting plate (7) is provided with a cross-section measuring component.

2. The railway passenger car axle box automatic measuring machine according to claim 1, characterized in that, The diameter measuring assembly includes multiple diameter measuring probes (13), which are evenly arranged along the circumferential direction of the first mounting plate (8) / the second mounting plate (7), and each diameter measuring probe (13) is connected to a probe take-up and put-down mechanism (19). A diameter measuring probe retraction shaft (12) is provided between the first mounting plate (8) and the second mounting plate (7). A diameter measuring probe retraction cylinder (18) is provided at the right end of the second mounting plate (7). The output end of the diameter measuring probe retraction cylinder (18) is fixedly connected to the diameter measuring probe retraction shaft (12). The diameter measuring probe retraction shaft (12) is hinged to the probe retraction mechanism (19).

3. The automatic measuring machine for railway passenger car wheel axle boxes according to claim 2, characterized in that, The first mounting plate (8) has a plurality of guide sleeves (15) evenly arranged along its circumference on the right end, and the second mounting plate (7) has a plurality of guide posts (16) evenly arranged along its circumference on the left end, which cooperate with the plurality of guide sleeves (15). The guide posts (16) extend into the corresponding guide sleeves (15), and a stroke adjustment spring (17) is fitted between the guide posts (16) and the left end face of the second mounting plate (7).

4. The railway car wheelset axle box automatic measuring machine of claim 3 wherein, A depth measuring ruler (14) is vertically installed on the left end face of the second mounting plate (7).

5. The railway car wheelset axle box automatic measuring machine of claim 4 wherein, The depth measurement assembly includes a depth measurement column (9), which is mounted on the left end face of the first mounting plate (8) via a mounting cylinder. A measurement column reset spring (11) is provided inside the mounting cylinder, and a depth positioning plate (10) is fitted on the outer peripheral wall of the mounting cylinder.

6. The railway car wheel-axle box automatic measuring machine of claim 1 wherein, The cross-section measuring component consists of two cross-section measuring rulers, which are respectively set along the vertical and horizontal directions of the left end face of the second mounting plate (7) or the first mounting plate (8).

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