A vehicle underframe apparatus changing device

Abstract

The application discloses a vehicle chassis equipment replacement device, and relates to the technical field of vehicle maintenance equipment, which comprises a replacement tool and a traction mechanism for moving the replacement tool, wherein the replacement tool is divided into a three-layer structure, and the three-layer structure comprises, from inside to outside, a floating bearing platform for bearing parts, an intermediate bearing frame for mounting the floating bearing platform and driving the horizontal movement of the floating bearing platform, and an outer bearing frame for supporting the whole replacement tool; the replacement tool provided by the application can satisfy the four-way action of lifting, horizontal and longitudinal translation and deflection of the equipment placed on the floating bearing platform through the setting of two sets of driving units for controlling the horizontal and longitudinal translation respectively, the cooperation of the screw lifting mechanism and the gear deflection mechanism, and provides great convenience for the installation and positioning of the large-volume and heavy vehicle bottom equipment, and can greatly reduce the operation difficulty and improve the operation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle maintenance equipment, in particular to a vehicle underframe equipment replacement device. BACKGROUND

[0002] With the development of railway transportation, especially the popularity of high-speed rail, bullet train and urban rail train, a large number of passenger trains are facing the regular maintenance and replacement cycle of on-board equipment. At present, the replacement operation of underframe equipment can only be completed under the condition of lifting the train, which causes the lifting machine station to be time-consuming and heavy task, and the maintenance time of the vehicle cannot be guaranteed, which may seriously affect the arrangement of railway transportation.

[0003] In the existing replacement operation of underframe equipment without lifting the train, the replacement parts are generally loaded and transferred by loading transfer cars. The height of the common loading transfer car basically exceeds the minimum ground clearance of the passenger train underframe, so it cannot directly transport the equipment to be replaced to the replacement position of the underframe, and manual secondary handling is required. Moreover, the loading surface of the existing loading transfer car cannot realize the actions of lifting, transverse moving, longitudinal moving and horizontal deflection at the same time, and cannot meet the accurate alignment of each installation hole during the disassembly and installation of large and heavy equipment. SUMMARY

[0004] The purpose of the present application is to provide a vehicle underframe equipment replacement device to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] A vehicle underframe equipment replacement device, comprising a replacement tool and a traction mechanism for moving the replacement tool, the replacement tool is divided into three layers from inside to outside, including a floating bearing platform, an intermediate bearing frame and an outer bearing frame in turn, the outer bearing frame is connected with the traction mechanism for installing and supporting the whole replacement tool, the intermediate bearing frame is arranged inside the outer bearing frame for installing the floating bearing platform and driving it to move horizontally, and the floating bearing platform is used for bearing the disassembled and replaced parts.

[0007] The inner wall of the intermediate carrier frame is connected with the intermediate carrier frame through several cross sliding frames, the cross sliding frame comprises a transverse linear guide rail and a longitudinal linear guide rail, the transverse linear guide rail and the longitudinal linear guide rail are arranged perpendicular to each other and are slidingly assembled, the transverse linear guide rail is fixedly connected with the outer carrier frame, and the longitudinal linear guide rail is slidingly arranged at the top of the transverse linear guide rail and is fixedly connected with the intermediate carrier frame; a driving mechanism for driving the intermediate carrier frame to move horizontally is arranged at the top of the outer carrier frame, the driving mechanism comprises two driving units, the two driving units are respectively arranged at the two side edges adjacent to the outer carrier frame, the two driving units are respectively used for driving the floating carrier platform to move in the transverse direction and the longitudinal direction, and are respectively referred to as a longitudinal driving unit and a transverse driving unit, the driving direction of the longitudinal driving unit is consistent with the sliding direction of the longitudinal linear guide rail, and the driving direction of the transverse driving unit is consistent with the sliding direction of the longitudinal linear guide rail; the driving unit comprises a translation servo motor, a ball screw pair is fixedly connected to the output end of the translation servo motor, and a linear guide rail pair is rotatably connected to one end of the ball screw pair; one side of the linear guide rail pair is fixedly connected with the intermediate carrier frame.

[0008] The floating carrier platform comprises a platform frame, a plurality of band hooks are fixedly connected to the edge of the platform frame, a platform bearing plate is fixedly connected to the top of the platform frame, a deflection center shaft is fixedly connected to the bottom of the platform frame, and the bottom of the deflection center shaft is rotatably connected with the intermediate carrier frame; a gear deflection mechanism for driving the floating platform to rotate is arranged below the floating carrier platform, the gear deflection mechanism comprises a deflection servo motor, a deflection driving gear is fixedly connected to the output end of the deflection servo motor, a deflection driven gear is fixedly connected to one side of the platform frame, the deflection driven gear is in meshing connection with the deflection driving gear, and the thickness of the deflection driven gear is greater than that of the deflection driving gear, so that the deflection driven gear and the deflection driving gear always remain stable meshing during the overall lifting movement of the floating carrier platform.

[0009] A plurality of screw lifting mechanisms for lifting and adjusting the floating carrier platform are fixedly installed in the middle of the intermediate carrier frame, the screw lifting mechanism comprises a lifting servo motor and a plurality of trapezoidal screw pairs, the output end of the lifting servo motor is in transmission connection with the plurality of trapezoidal screw pairs through a transmission chain, the output end of each of the plurality of trapezoidal screw pairs is fixedly installed with a universal ball bearing, and the top of each of the plurality of universal center shafts is in contact with the bottom of the platform bearing plate.

[0010] As a further scheme of the present application: the traction mechanism comprises a traction plate, one side of the traction plate is bent downward and fixedly connected with the outer bearing frame, the top of the traction plate is fixedly installed with a control workbench, the bottom of the traction plate is rotatably installed with a steering traction frame, the bottom of the steering traction frame is rotatably connected with front wheels on both sides, the bottom of the outer frame is rotatably connected with rear wheels on both sides, and the two rear wheels are solid core tires.

[0011] Compared with the prior art, the beneficial effects of the present application are: the replacement tool provided by the present application can realize the four-way action of lifting, translating, and deflecting of the equipment placed on the floating bearing platform by setting two sets of driving units to control the horizontal and vertical translation of the intermediate bearing frame and the floating bearing platform, cooperating with the screw lifting mechanism and the gear deflection mechanism, and all the movement mechanisms of the device are servo-driven structures, which are stable, accurate, safe and reliable. This has a great effect on the installation and positioning of large-volume and heavy equipment, greatly reduces the difficulty of personnel operation, and improves the operation efficiency.

[0012] The device divides the replacement tool into three layers, so that the support, translation, lifting and deflection of the floating bearing platform can be set on different levels, avoiding the mutual interference of the concentrated structures, reducing the complexity and failure rate of the structure, and the separate arrangement of the mechanisms makes the function block clear, so that the manufacturing, installation and maintenance of the device are more convenient.

[0013] The load on the floating bearing platform is transmitted to the intermediate bearing frame through the top universal ball bearing of the screw rod of the screw lifting mechanism, and then evenly distributed to the outer bearing frame through the cross slide, and finally conducted to the outer bearing frame wheels, ensuring that the device has sufficient load bearing capacity for the disassembled and replaced parts. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a top view of the overall structure of the present application;

[0015] Figure 2 It is a side view of the overall structure of the present application;

[0016] Figure 3 It is a top view of the platform frame of the present application;

[0017] Figure 4 It is a side view of the floating bearing platform of the present application;

[0018] Figure 5 It is a cross-sectional view of the cross slide frame of the present application;

[0019] Figure 6 It is a cross-sectional view of the driving unit of the present application;

[0020] Figure 7 is a sectional view of the screw lifting mechanism of the present application;

[0021] Figure 8 is a sectional view of the gear deflection mechanism of the present application.

[0022] In the figure: 1, outer bearing frame; 2, intermediate bearing frame; 3, floating bearing platform; 301, platform frame; 302, platform bearing plate; 303, deflection center shaft; 4, cross slide frame; 401, longitudinal linear guide rail; 402, transverse linear guide rail; 5, drive unit; 501, translation servo motor; 502, ball screw pair; 503, linear guide rail pair; 6, screw lifting mechanism; 601, trapezoidal screw pair; 602, universal ball bearing; 603, transmission chain; 7, gear deflection mechanism; 701, deflection servo motor; 702, deflection driving gear; 703, deflection driven gear; 8, traction plate; 9, control workbench; 10, steering traction frame; 11, front wheel; 12, rear wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0024] Please refer to Figures 1-8 In the embodiments of the present application, a vehicle chassis equipment replacement device includes a replacement tool and a traction mechanism for traction of the replacement tool, the replacement tool is divided into three layers from inside to outside, and sequentially includes a floating bearing platform 3, an intermediate bearing frame 2 and an outer bearing frame 1. The outer bearing frame 1 is connected with the traction mechanism, and is used for mounting and supporting the whole replacement tool. The intermediate bearing frame 2 is arranged inside the outer bearing frame 1, and is used for mounting the floating bearing platform 3 and driving the horizontal movement of the floating bearing platform 3. The floating bearing platform 3 is used for bearing the disassembled and replaced parts. The height of the replacement tool of the present application can be designed and changed according to the actual vehicle type, so as to meet the space requirement of the equipment replacement that the equipment or parts to be replaced directly enters the vehicle bottom for operation.

[0025] The replacement tool of the device is provided with two sets of driving units 5, which respectively control the horizontal and longitudinal translation of the intermediate carrier 2 and the floating bearing platform 3 on the horizontal plane, and cooperate with the screw lifting mechanism 6 and the gear deflection mechanism 7, so that the equipment placed on the floating bearing platform 3 can realize four-way action of lifting, translation and deflection. All the movement mechanisms of the device are servo-driven structures, which are stable, accurate, safe and reliable. This has a great effect on the installation and positioning of large-volume and heavy equipment, greatly reduces the difficulty of personnel operation, and improves the operation efficiency.

[0026] The device is divided into three layers, so that the support, translation, lifting and deflection of the floating bearing platform 3 can be arranged on different levels, avoiding the mutual interference of the concentrated structure, reducing the complexity and failure rate of the structure, and the separate arrangement of the mechanisms makes the manufacturing, installation and maintenance of the device more convenient.

[0027] The inner wall of the intermediate carrier 2 is connected with the intermediate carrier 2 through a plurality of cross sliding frames 4. In this embodiment, four sets of cross sliding frames 4 are arranged between the intermediate carrier 2 and the outer carrier 1. The cross sliding frame 4 includes a horizontal linear guide rail 402 and a vertical linear guide rail 401, which are arranged perpendicular to each other and are slidingly assembled. The horizontal linear guide rail 402 is fixedly connected with the outer carrier 1, and the vertical linear guide rail 401 is slidingly arranged on the top of the horizontal linear guide rail 402 and is fixedly connected with the intermediate carrier 2. The top of the outer carrier 1 is provided with a driving mechanism for driving the horizontal movement of the intermediate carrier 2. The driving mechanism includes two driving units 5, which are respectively arranged on the two side edges adjacent to the outer carrier 1. The two driving units 5 are respectively used for driving the floating bearing platform 3 to move horizontally and vertically, and are respectively called longitudinal driving unit 5 and horizontal driving unit 5. The driving direction of the longitudinal driving unit 5 is consistent with the sliding direction of the vertical linear guide rail 401, and the driving direction of the horizontal driving unit 5 is consistent with the sliding direction of the vertical linear guide rail 401. The driving unit 5 includes a translation servo motor 501, the output end of which is fixedly connected with a ball screw pair 502, one end of the ball screw pair 502 is rotatably connected with a linear guide rail pair 503, and one side of the linear guide rail pair 503 is fixedly connected with the intermediate carrier 2.

[0028] The floating bearing platform 3 comprises a platform frame 301, a plurality of binding hook rings are fixedly connected to the edge of the platform frame 301, a platform bearing plate 302 is fixedly connected to the top of the platform frame 301, a deflection center shaft 303 is fixedly connected to the bottom of the platform frame 301, the bottom of the deflection center shaft 303 is rotationally connected to the intermediate bearing frame 2, a gear deflection mechanism 7 for driving the floating platform to rotate is arranged below the floating bearing platform 3, the gear deflection mechanism 7 comprises a deflection servo motor 701, a deflection driving gear 702 is fixedly connected to the output end of the deflection servo motor 701, a deflection driven gear 703 is fixedly connected to one side of the platform frame 301, the deflection driven gear 703 is meshingly connected with the deflection driving gear 702, and the thickness of the deflection driven gear 703 is greater than that of the deflection driving gear 702, so that the deflection driven gear 703 and the deflection driving gear 702 always remain stably meshed during the overall lifting movement of the floating bearing platform 3;

[0029] A plurality of screw lifting mechanisms 6 for lifting and adjusting the floating bearing platform 3 are fixedly installed in the middle of the intermediate bearing frame 2, the screw lifting mechanism 6 comprises a lifting servo motor and a plurality of trapezoidal screw rod pairs 601, the output end of the lifting servo motor is drivingly connected with the plurality of trapezoidal screw rod pairs 601 through a transmission chain 603, the output end of each of the plurality of trapezoidal screw rod pairs 601 is fixedly installed with a universal ball bearing 602, and the top of each of the plurality of universal center shafts is in contact with the bottom of the platform bearing plate 302;

[0030] The load on the floating bearing platform 3 is transmitted to the intermediate bearing frame 2 through the universal ball bearing 602 at the top of the screw rod of the screw lifting mechanism 6, and then the gravity is uniformly distributed to the outer bearing frame 1 through the cross slide, and finally transmitted to the wheels of the outer bearing frame 1, so that the device has sufficient load bearing capacity for the disassembled parts.

[0031] The traction mechanism comprises a traction plate 8, one side of the traction plate 8 is downwardly bent and fixedly connected with the outer bearing frame 1, a control workbench 9 is fixedly installed at the top of the traction plate 8, a steering traction frame 10 is rotationally installed at the bottom of the traction plate 8, front wheels 11 are rotationally connected to the bottom of the steering traction frame 10, rear wheels 12 are rotationally connected to the bottom of the outer frame, and the two rear wheels 12 are solid core tires, so as to facilitate walking and crossing the shallow groove of the steel rail.

[0032] The device replacement tool power is powered by a battery, equipped with a battery control system and a charging device, can be installed on the traction plate 8, powered by a battery, also makes the device suitable for outdoor operation; The action of each servo motor of the device is controlled by the control workbench 9, which can be connected or wirelessly controlled by a touch screen and a handheld control box, which is convenient for on-site operation and fine adjustment of the tool position; The whole device is pulled by an external traction type, and a traction hook is arranged on the steering traction frame 10. The traction vehicle adopts a seat type battery car, which can conveniently realize the transfer of the tool equipment, and the traction vehicle is separately charged and controlled. When needed, it is connected with the tool, and when not working, it is disconnected with the tool, which can reduce the floor space of the tool and improve the use efficiency of the traction vehicle.

[0033] In use, the whole tool is driven by a seat type electric traction vehicle, the steering traction frame 10 is connected with the electric traction vehicle, and the whole replacement tool is transferred into the vehicle bottom for operation by the electric traction vehicle;

[0034] When working, the floating bearing platform 3 bears the disassembled and replaced parts, and the parts are fixed by the binding belt and the binding belt hook when needed;

[0035] During the disassembling and replacing operation of the parts:

[0036] When the parts need to be horizontally shifted and adjusted, the translation servo motor 501 on the driving unit 5 is started, the ball screw pair 502 is driven to rotate, the linear guide pair 503 is pushed to move, and then the horizontal movement or vertical movement of the floating bearing platform 3 is pushed to realize the horizontal shift adjustment of the floating bearing platform 3 and the parts thereon;

[0037] When the parts need to be lifted and shifted, the lifting servo motor is started, the trapezoidal screw pair 601 connected with the transmission chain 603 is driven to move synchronously, and then the universal ball bearing 602 is lifted or lowered, the floating bearing platform 3 is lifted and moved, and the lifting and shifting adjustment of the floating bearing platform 3 and the parts thereon is realized;

[0038] When the parts need to be rotated and shifted, the deflection servo motor 701 drives the deflection driving gear 702 to rotate, and then drives the deflection driven gear 703 and the platform frame 301 to rotate, and then drives the floating bearing platform 3 to ascend and deflect, and realizes the lifting and shifting adjustment of the floating bearing platform 3 and the parts thereon;

[0039] After the disassembling and replacing operation of the parts in the vehicle bottom is completed, the electric traction vehicle is started, the steering traction frame 10 is pulled, and the whole replacement tool or the parts are transferred out of the vehicle bottom.

[0040] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A vehicle underframe apparatus replacement device, characterized by, The application relates to a replacement tooling device, which comprises a replacement tooling device and a traction mechanism for traction movement of the replacement tooling device, the replacement tooling device is divided into a three-layer structure, and the three-layer structure comprises, from inside to outside, a floating bearing platform (3) for bearing parts, an intermediate bearing frame (2) for mounting the floating bearing platform (3) and driving horizontal movement of the floating bearing platform (3), and an outer bearing frame (1) for supporting the whole replacement tooling device; A driving mechanism for driving the intermediate bearing frame (2) to horizontally move is arranged on the top of the outer bearing frame (1), the driving mechanism comprises two driving units (5), and the two driving units (5) are respectively used for driving the floating bearing platform (3) to move in the transverse direction and the longitudinal direction; The floating bearing platform (3) comprises a platform frame (301), the top of the platform frame (301) is fixedly connected with a platform bearing plate (302), the bottom of the platform frame (301) is rotationally connected with the intermediate bearing frame (2) through a deflection center shaft (303), a gear deflection mechanism (7) for driving the floating platform to rotate is arranged below the floating bearing platform (3), and a plurality of screw lifting mechanisms (6) for lifting adjustment of the floating bearing platform (3) are fixedly installed in the middle of the intermediate bearing frame (2); The gear deflection mechanism (7) comprises a deflection servo motor (701), the output end of the deflection servo motor (701) is fixedly connected with a deflection driving gear (702), one side of the platform frame (301) is fixedly connected with a deflection driven gear (703), the deflection driven gear (703) is in meshing connection with the deflection driving gear (702), and the thickness of the deflection driven gear (703) is greater than that of the deflection driving gear (702); The screw lifting mechanism (6) comprises a lifting servo motor and a plurality of trapezoidal screw pairs (601), the output end of the lifting servo motor is in transmission connection with the plurality of trapezoidal screw pairs (601) through a transmission chain (603), the output end of each trapezoidal screw pair (601) is fixedly installed with a universal ball bearing (602), and the top of each universal ball bearing (602) is in contact with the bottom of the platform bearing plate (302).

2. The apparatus according to claim 1, wherein The inner wall of the intermediate bearing frame (2) is connected with the outer bearing frame (1) through a plurality of cross sliding frames (4), the cross sliding frame (4) comprises a transverse straight line guide rail (402) and a longitudinal straight line guide rail (401), the transverse straight line guide rail (402) and the longitudinal straight line guide rail (401) are arranged and slidably assembled in perpendicular to each other, the transverse straight line guide rail (402) is fixedly connected with the outer bearing frame (1), and the longitudinal straight line guide rail (401) is fixedly connected with the intermediate bearing frame (2).

3. The apparatus of claim 1, wherein, The driving unit (5) comprises a translation servo motor (501), the output end of the translation servo motor (501) is fixedly connected with a ball screw pair (502), one end of the ball screw pair (502) is rotationally connected with a straight line guide rail pair (503), and one side of the straight line guide rail pair (503) is fixedly connected with the intermediate bearing frame (2).

4. The apparatus of claim 1, wherein, Said traction mechanism includes a traction plate (8), one side of the traction plate (8) is bent downward and fixedly connected with an outer bearing frame (1), a control workbench (9) is fixedly installed at the top of the traction plate (8), a steering traction frame (10) is rotatably installed at the bottom of the traction plate (8), front wheels (11) are rotatably connected at the bottom of the steering traction frame (10), rear wheels (12) are rotatably connected at the bottom of the outer bearing frame (1).

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