Railway freight car bogie pillow spring intelligent dismounting device

Abstract

The application discloses a railway wagon bogie pillow spring intelligent dismounting device, which comprises a main body frame and a pillow spring rotating mechanism, a pillow spring supporting mechanism, a pillow spring pushing mechanism and a translation pushing mechanism fixed to the main body frame; the pillow spring rotating mechanism is used for rotating the pillow spring; the pillow spring pushing mechanism is used for hooking the pillow spring when moving forward and pushing the pillow spring down when moving backward; the pillow spring supporting mechanism is used for supporting the pillow spring; and the translation pushing mechanism is used for adjusting the distance between the left and right telescopic components and the distance between the left and right supporting rod components. The application is suitable for dismounting various types of pillow springs and improves the bogie maintenance efficiency.

Description

Technical Field

[0001] This invention relates to railway freight car maintenance equipment, specifically to an intelligent disassembly device for railway freight car bogie sleeper springs. Background Technology

[0002] During bogie maintenance, the bolster springs in the bogie need to be removed for dimensional inspection. Traditionally, bolster spring removal during bogie maintenance is primarily done manually. This involves manually reaching inside the bogie, prying down the bolster spring, and then manually removing it and placing it on the bolster spring inspection line. This manual method is inefficient, requires prolonged manual labor, and has extremely low safety and reliability. Furthermore, existing automatic spring retrieval devices are only suitable for specific bolster spring models, limiting their applicability.

[0003] Therefore, there is a need in the art for a new pillow spring disassembly device to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent disassembly device for bogie bolster springs of railway freight cars. This device is applicable to the disassembly of various types of bolster springs, thereby improving the maintenance efficiency of bogies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A smart disassembly device for bogie pillow springs of railway freight cars, the device comprising a main frame and a pillow spring rotation mechanism, a pillow spring support mechanism, a pillow spring actuation mechanism, and a translational pushing mechanism fixed to the main frame;

[0007] The pillow spring rotating mechanism includes a left telescopic component and a right telescopic component. The front end of both the left and right telescopic components is provided with an electric roller. The left and right telescopic components are configured to rotate the pillow spring using the electric roller.

[0008] The bolster spring actuation mechanism includes a lifting assembly, a forward pushing assembly, and an actuation assembly mounted on the front end of the forward pushing assembly. The forward pushing assembly is configured to push the actuation assembly forward so that the actuation assembly can hook the bolster spring and deflect the bolster spring when retracting. The lifting assembly is used to lift the forward pushing assembly and the actuation assembly.

[0009] The pillow spring support mechanism includes a left support rod assembly and a right support rod assembly, which are located between the left telescopic assembly and the right telescopic assembly and are used to support the pillow spring.

[0010] The translational pushing mechanism includes a left pushing component and a right pushing component. The left pushing component is used to simultaneously move the right telescopic component and the right support rod component horizontally, and the right pushing component is used to simultaneously move the left telescopic component and the left support rod component horizontally, so as to adjust the distance between the left and right telescopic components and between the left and right support rod components.

[0011] Preferably, the left telescopic assembly includes a base plate, on which a first guide rail and a rack are provided that are parallel and extend in the front-rear direction. The first guide rail is provided with a first slider, and the first slider is connected to a first servo reduction motor. The output shaft of the first servo reduction motor meshes with the rack through a gear. The slider is connected to a connecting rod through a connecting plate. The connecting rod protrudes from the main frame, and the front end of the connecting rod is provided with the electric roller.

[0012] Preferably, the bottom of the base plate is provided with two second sliders extending in the left-right direction, and the main frame is provided with a second guide rail that matches the second sliders, so that the left telescopic component can move horizontally along the second guide rail.

[0013] Preferably, the right push assembly includes a translational electric cylinder, which includes a body and a piston rod. The body is fixed to the right side of the main frame, and the piston rod is connected to the base plate to provide power for the horizontal movement of the left telescopic assembly.

[0014] Preferably, the left support rod assembly includes a support rod, a fulcrum electric cylinder, an angle adjustment electric cylinder, a fulcrum slider, and a first guide member;

[0015] The support rod protrudes from the main frame, the body of the fulcrum electric cylinder is connected to the base plate, the piston rod of the fulcrum electric cylinder is rotatably connected to the support rod, the fulcrum slider is connected to the piston rod of the fulcrum electric cylinder, and the fulcrum slider is slidably connected to the first guide member, so that the fulcrum slider moves up and down along the first guide member;

[0016] The angle adjustment electric cylinder is located behind the fulcrum electric cylinder. The body of the angle adjustment electric cylinder is connected to the base plate, and the piston rod of the angle adjustment electric cylinder is rotatably connected to the support rod.

[0017] Preferably, the forward pushing assembly includes a housing and a ball screw, a spline pair, and a second servo geared motor for driving the spline pair located within the housing, with both ends of the ball screw extending out of the housing;

[0018] The actuating assembly is connected to the front end of the ball screw. The lifting assembly includes a lifting cylinder, a guide rod, and a second guide member. The body of the lifting cylinder and the second guide member are fixed to the main frame. The piston rod and the guide rod of the lifting cylinder are connected to the housing. The guide rod is slidably connected to the second guide member, so that the guide rod moves up and down along the second guide member.

[0019] The advantages of this invention are:

[0020] The present invention provides an intelligent disassembly device for bogie bolster springs of railway freight cars, which can automatically disassemble the bolster springs on the bogie and is applicable to the disassembly of various types of bolster springs, thereby improving the maintenance efficiency of bogies. Attached Figure Description

[0021] Figure 1 and Figure 2 This is a schematic diagram illustrating the usage status of the intelligent disassembly device for railway freight car bogie pillow springs of the present invention;

[0022] Figure 3 This is a top view schematic diagram of the intelligent disassembly device for railway freight car bogie pillow springs of the present invention;

[0023] Figure 4 and Figure 5 This is a three-dimensional structural schematic diagram of the intelligent disassembly device for railway freight car bogie pillow springs of the present invention;

[0024] Figure 6 This is a schematic diagram of the main framework of the present invention;

[0025] Figures 7 to 9 This is a structural schematic diagram of the left telescopic component and the left support rod component of the present invention;

[0026] Figures 10 to 12 This is a structural schematic diagram of the right telescopic component and the right support rod component of the present invention;

[0027] Figure 13 This is a three-dimensional structural schematic diagram of the pillow spring actuation mechanism of the present invention;

[0028] Figure 14 This is a cross-sectional structural schematic diagram of the pillow spring actuation mechanism of the present invention;

[0029] Figure 15 This is a schematic diagram of the structure of the toggle assembly of the present invention;

[0030] Figure 16 This is a schematic diagram of the translational pushing mechanism of the present invention. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0032] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that in the description of this invention, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The term "comprising" or any other similar term is intended to cover a non-exclusive inclusion, such that an article or device / apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those articles or devices / apparatus.

[0034] See appendix Figure 1 and Figure 2 This describes the usage state of the intelligent bogie spring dismantling device 50 for railway freight cars in this embodiment. The intelligent bogie spring dismantling device 50 provided in this embodiment is suitable for the automatic dismantling of the bogie springs 60. During use, the intelligent bogie spring dismantling device 50 is fixed to the end of the robot 70 and works together. The intelligent bogie spring dismantling device 50 and the controller robot 70 are controlled by a PLC. Laser detection is used to distinguish the positions of different bogies and each bogie spring 60. Based on the measurement data, the robot 70 is controlled to complete the spatial coordinate positioning, and the intelligent bogie spring dismantling device 50 enables the automatic dismantling of the bogie springs 60.

[0035] See appendix Figures 3 to 5This is a schematic diagram of the intelligent disassembly device for bogie pillow springs in this embodiment. The intelligent disassembly device 50 for bogie pillow springs provided in this embodiment includes a main frame 10 and a pillow spring rotation mechanism 20, a pillow spring support mechanism 30, a pillow spring actuation mechanism 40, and a translational pushing mechanism 90 fixed to the main frame 10.

[0036] See appendix Figure 6 This is a schematic diagram of the main frame structure of this embodiment. The main frame 10 is a frame structure assembled by welding metal profiles. In use, the top of the main frame 10 is mounted on the end of the control robot 70.

[0037] See appendix Figures 7 to 12 This is a schematic diagram of the structure of the pillow spring rotating mechanism and the pillow spring supporting mechanism in this embodiment. The pillow spring rotating mechanism 20 provided in this embodiment includes a left telescopic component 21 and a right telescopic component 22. The left telescopic component 21 and the right telescopic component 22 have symmetrical and identical structures. The front end of both the left telescopic component 21 and the right telescopic component 22 is provided with an electric roller 23. Taking the left telescopic component 21 as an example, the left telescopic component 21 includes a base plate 24. The base plate 24 is provided with a first guide rail 25 and a rack 26 that are parallel and extend in the front-back direction. The first guide rail 25 is provided with a first slider 27. The first slider 27 is connected to a first servo reduction motor 28. The output shaft of the first servo reduction motor 28 meshes with the rack 26 through a gear. The first slider 27 is connected to a connecting rod 80 through a connecting plate 29. The connecting rod 80 protrudes from the main frame 10, and the front end of the connecting rod 80 is provided with an electric roller 23. By driving the first servo reduction motor 28, the connecting rod 80 can be driven to move forward or backward. During this process, the first slider 27 moves along the first guide rail 25.

[0038] Both the left telescopic assembly 21 and the right telescopic assembly 22 have electric rollers 23 at their front ends on the connecting rods 80. The left and right telescopic assemblies 21 and 22 are configured to rotate the spring 60 using the electric rollers 23. When the left and right telescopic assemblies 21 and 22 extend forward, the electric rollers 23 are positioned on both sides of the spring 60, supporting its outer edge. The rotation of the electric rollers 23 drives the spring 60 through friction. The electric rollers 23 operate in a one-to-two manner, with a speed range of 350-500 rpm. It should be noted that the spring 60 has a helical structure. To facilitate the spring actuation mechanism 40 actuating the spring 60, the rotation angle of the spring 60 needs to be adjusted, for example, so that the highest point of the spring 60 corresponds to the spring actuation mechanism 40. The rotation of the spring 60 is achieved through the spring rotation mechanism 20.

[0039] See appendix Figures 13 to 15This is a schematic diagram of the pillow spring actuation mechanism in this embodiment. The pillow spring actuation mechanism 40 is installed at the top center of the main frame 10. The pillow spring actuation mechanism 40 includes a lifting assembly 41, a forward pushing assembly 42, and an actuation assembly 43 mounted on the front end of the forward pushing assembly 42. The forward pushing assembly 42 is configured to push the actuation assembly 43 forward so that the actuation assembly 43 can hook the pillow spring 60, and to deflect the pillow spring 60 when retracting. The lifting assembly 41 is used to lift the forward pushing assembly 42 and the actuation assembly 43.

[0040] The forward-moving push assembly 42 includes a housing 421 and a ball screw 422, a spline pair 423, and a second servo geared motor 424 that drives the spline pair 423, all located within the housing 421. Both ends of the ball screw 422 extend out of the housing 421. The second servo geared motor 424 drives the spline pair 423 via a synchronous belt (not shown). The actuating assembly 43 is connected to the front end of the ball screw 422. By driving the second servo geared motor 424, the ball screw 422 can be moved forward or backward, thereby causing the actuating assembly 43 to move forward or backward. The lifting assembly 41 includes a lifting cylinder 411, a guide rod 412, and a second guide member 413. The body of the lifting cylinder 411 and the second guide member 413 are fixed to the main frame 10. The piston rod of the lifting cylinder 411 and the guide rod 412 are connected to the housing 421. The guide rod 412 is slidably connected to the second guide member 413, allowing the guide rod 412 to move up and down along the second guide member 413. Thus, by controlling the lifting electric cylinder 411, the height of the ball screw 422 and the actuating assembly 43 can be adjusted to accommodate the pillow spring 60 at different heights.

[0041] The actuation assembly 43 includes a lever support 431 and a lever 432. The lever support 431 has a limiting member 433. The lever support 431 is connected to the front end of the ball screw 422. The lever 432 is rotatably connected to the lever support 431. The limiting member 433 is used to limit the lever 432. Specifically, the lever 432 can be a rod that rotates on the lever support 431 in the forward or backward direction. In normal operation, the lever 432 is vertically downward due to its own weight. When the forward pushing component 42 moves forward and the lever 432 contacts the top of the bolster spring 60, the resistance of the bolster spring 60 causes the lever 432 to rotate inward (backward), thus passing over the top of the bolster spring 60. Afterward, the lever 432 is vertically downward due to its own weight. When the forward pushing component 42 moves backward, the lever 432 can hook the top edge of the bolster spring 60. However, due to the action of the limiting member 433, the lever 432 is prevented from rotating backward, thus allowing the lever 432 to deflect the spring.

[0042] Please cooperate with the attached document. Figure 8 , Figure 9 , Figure 11 and Figure 12This is a schematic diagram of the pillow spring support mechanism in this embodiment. The pillow spring support mechanism 30 includes a left support rod assembly 31 and a right support rod assembly 32, which are located between the left telescopic assembly 21 and the right telescopic assembly 22, and are used to support the pillow spring 60. The left support rod assembly 31 and the right support rod assembly 32 have the same structure. Taking the left support rod assembly 31 as an example, the left support rod assembly 31 includes a support rod 311, a fulcrum electric cylinder 312, an angle adjustment electric cylinder 313, a fulcrum slider 314, and a first guide member 315. The support rod 311 protrudes from the main frame 10, the body of the fulcrum electric cylinder 312, and the piston rod of the fulcrum electric cylinder 312 is rotatably connected to the support rod 311. The fulcrum slider 314 is connected to the piston rod of the fulcrum electric cylinder 312 and is slidably connected to the first guide member 315, so that the fulcrum slider 314 moves up and down along the first guide member 315. The angle adjustment electric cylinder 313 is located behind the fulcrum electric cylinder 312. The body of the angle adjustment electric cylinder 313 is connected to the base plate 24, and the piston rod of the angle adjustment electric cylinder is rotatably connected to the support rod 311.

[0043] The overall height of the support rod 311 can be controlled by the lifting fulcrum electric cylinder 312. During the lifting process, the cooperation of the fulcrum slider 314 and the first guide member 315 ensures that the fulcrum electric cylinder 312 moves up and down in a straight line. The tilt angle of the support rod 311 can be controlled by the lifting angle adjustment electric cylinder 313. In this embodiment, the front end of the support rod 311 of the left support rod assembly 31 and the right support rod assembly 32 supports the pillow spring 60. When supporting the pillow spring 60, the support rod 311 is in a horizontal state. When transferring the pillow spring 60, in order to prevent the pillow spring 60 from falling, the front end of the support rod 311 needs to be tilted at a certain angle. The tilt angle of the support rod 311 can be controlled by the lifting angle adjustment electric cylinder 313.

[0044] See appendix Figure 16 This is a schematic diagram of the translational pushing mechanism of this embodiment. The translational pushing mechanism 90 includes a left pushing component 91 and a right pushing component 92. The left pushing component 91 and the right pushing component 92 have the same structure. The left pushing component 91 is used to simultaneously move the right telescopic component 22 and the right support rod component 32 horizontally, and the right pushing component 92 is used to simultaneously move the left telescopic component 21 and the left support rod component 31 horizontally, so as to adjust the distance between the left and right telescopic components 21 and 22 and between the left and right support rod components 31 and 32. That is, the left pushing component 91 can horizontally push the right telescopic component 22 and the right support rod component 32 in the left-right direction; the right pushing component 92 can horizontally push the left telescopic component 21 and the left support rod component 31 in the left-right direction.

[0045] Taking the right push assembly 92 as an example, the right push assembly 92 includes a translational electric cylinder 921, which includes a body and a piston rod. The body of the right translational electric cylinder 921 is fixed to the right side of the main frame 10, and its piston rod is connected to the base plate 24 of the left telescopic assembly 21. The bottom of the base plate 24 is provided with two second sliders 922 extending in the left and right directions. The main frame 10 is provided with a second guide rail 923 that matches the second sliders 922. By driving the translational electric cylinder 921, the left telescopic assembly 21 and the left support rod assembly 31 can move horizontally in the left and right directions along the second guide rail 923. This achieves the purpose of adjusting the distance between the left and right telescopic assemblies 21 and 22 and the distance between the left and right support rod assemblies 31 and 32. By adjusting the distance between the left and right telescopic assemblies 21 and 22, the purpose of rotating the pillow spring 60 is achieved. The purpose of supporting pillow springs 60 of different diameters is achieved through the left and right support rod assemblies 31 and 32.

[0046] In use, the distance between the left telescopic component 21 and the right telescopic component 22 is adjusted by the left push component 91 and the right push component 92, extending the left telescopic component 21 and the right telescopic component 22 forward so that the electric rollers 23 of the left telescopic component 21 and the right telescopic component 22 are located on both sides of the bolster spring 60; the distance between the left telescopic component 21 and the right telescopic component 22 is adjusted by the left push component 91 and the right push component 92 so that the electric rollers 23 of the left telescopic component 21 and the right telescopic component 22 support the outer edge of the bolster spring 60, and the electric rollers 23 are rotated to rotate the bolster spring 60 to a suitable angle using friction; the electric rollers 23 of the left telescopic component 21 and the right telescopic component 22 are appropriately released by the left push component 91 and the right push component 92; the left extension is controlled. The retracting assembly 21 and the right telescopic assembly 22 retract to their initial state; the forward movement of the control spring actuation mechanism 40 pushes the push assembly 42 forward, enabling the actuation assembly 43 to actuate the spring 60; the forward movement of the control spring actuation mechanism 40 pushes the push assembly 42 backward, actuating the spring 60; the left and right support rod assemblies 31 and 32 horizontally catch the fallen spring 60, and then the angle adjustment cylinder 313 of the spring support mechanism 30 is controlled to raise the corresponding support rod 311; finally, the robot 70 is used to transfer the intelligent disassembly device 50 for railway freight car bogie springs to the spring maintenance line. By adjusting the fulcrum cylinder 312 and the angle adjustment cylinder 313 of the spring support mechanism 30, the support rod 311 is tilted downward, placing the spring 60 on the spring maintenance line. This completes the automatic disassembly and transfer operation of the spring.

[0047] In summary, the intelligent bogie spring disassembly device provided by this invention can automatically disassemble the bogie springs, is applicable to the disassembly of various types of bogie springs, and improves the efficiency of bogie maintenance.

[0048] The above description describes the preferred embodiments of the present invention and the technical principles applied thereto. For those skilled in the art, any obvious changes such as equivalent transformations or simple substitutions based on the technical solutions of the present invention, without departing from the spirit and scope of the present invention, shall fall within the protection scope of the present invention.

Claims

1. A railway truck bogie pillow spring intelligent dismounting device, characterized in that, The device comprises a main frame, a pillow spring rotating mechanism, a pillow spring supporting mechanism, a pillow spring pushing mechanism and a pillow spring pushing mechanism fixed to the main frame. The pillow spring rotating mechanism comprises a left telescopic component and a right telescopic component, the front ends of the left telescopic component and the right telescopic component are provided with electric rollers, and the left telescopic component and the right telescopic component are arranged to rotate the pillow spring by using the electric rollers. The pillow spring pushing mechanism comprises a lifting component, a front moving pushing component and a pushing component fixed to the front end of the front moving pushing component, the front moving pushing component is arranged to push the pushing component to move forward so that the pushing component can hook the pillow spring and push the pillow spring to fall back when the pushing component moves back, and the lifting component is used to lift the front moving pushing component and the pushing component. The pillow spring supporting mechanism comprises a left supporting rod component and a right supporting rod component, the left supporting rod component and the right supporting rod component are located between the left telescopic component and the right telescopic component and are used to support the pillow spring. The pillow spring pushing mechanism comprises a left pushing component and a right pushing component, the left pushing component is used to horizontally move the right telescopic component and the right supporting rod component at the same time, the right pushing component is used to horizontally move the left telescopic component and the left supporting rod component at the same time, and the distance between the left telescopic component and the right telescopic component and the distance between the left supporting rod component and the right supporting rod component are adjusted. The left telescopic component comprises a bottom plate, The bottom of the bottom plate is provided with two second sliding blocks extending along the left-right direction, the main frame is provided with a second guide rail matched with the second sliding blocks, and the left telescopic component can move horizontally along the second guide rail. The left supporting rod component comprises a supporting rod, a branch point electric cylinder, an angle adjusting electric cylinder, a branch point sliding block and a first guide part, The body of the branch point electric cylinder is connected to the bottom plate, the piston rod of the branch point electric cylinder is rotatably connected to the supporting rod, the branch point sliding block is connected to the piston rod of the branch point electric cylinder, the branch point sliding block is slidingly connected to the first guide part, and the branch point sliding block moves up and down along the first guide part. The angle adjusting electric cylinder is located behind the branch point electric cylinder, the body of the angle adjusting electric cylinder is connected to the bottom plate, and the piston rod of the angle adjusting electric cylinder is rotatably connected to the supporting rod. The front moving pushing component comprises a shell, a ball screw, a spline pair and a second servo reduction motor driving the spline pair in the shell, and the ball screw extends out of the shell at both ends. The pushing component is connected to the front end of the ball screw, the lifting component comprises a lifting electric cylinder, a guide rod and a second guide part, the body of the lifting electric cylinder and the second guide part are fixed to the main frame, the piston rod of the lifting electric cylinder and the guide rod are connected to the shell, the guide rod is slidingly connected to the second guide part, and the guide rod moves up and down along the second guide part.

2. The intelligent dismounting device for railway truck pillow spring according to claim 1, characterized in that, The bottom plate is provided with a first guide rail and a rack extending in parallel and in the front-rear direction, the first guide rail is provided with a first sliding block, the first sliding block is connected with a first servo deceleration motor, the output shaft of the first servo deceleration motor is engaged with the rack through a gear, the sliding block is connected with a connecting rod through a connecting plate, the connecting rod protrudes from the main frame, and the front end of the connecting rod is provided with the electric roller.

3. The intelligent dismounting device for railway truck pillow spring according to claim 2, characterized in that, The right pushing and moving assembly comprises a translation electric cylinder, the translation electric cylinder comprises a body and a piston rod, the body is fixed to the right side of the main frame, and the piston rod is connected with the bottom plate to provide power for horizontal movement of the left telescopic assembly.

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