Lifting platform for overhaul of bullet train bogie

Abstract

The utility model discloses a motor car bogie overhaul lifting platform, which belongs to the field of motor car overhaul and comprises a lifting platform arranged in a trench and a lifting component arranged below the lifting platform. A moving assembly used for moving the lifting table is arranged between the lower portion of the lifting assembly and the trench. The moving assembly comprises a bottom plate, two second sliding blocks are symmetrically and fixedly connected to the bottom end of the bottom plate, and the bottoms of the second sliding blocks are slidably sleeved with second guide rails fixedly connected with the bottom wall of the trench. The two sides of the bottom end of the bottom plate are each provided with a locking assembly used for fixing the bottom plate in a trench. The lifting platform can be moved to the position below the bullet train bogie through the moving assembly, the position of the lifting platform can be finely adjusted according to the parking place of the bullet train bogie, the adaptability of the lifting platform and the bullet train bogie is improved, and the practicability of the device is improved; the locking screw rod is used for ascending and descending on the bottom plate, so that the bottom plate can be conveniently fixed in the trench, and meanwhile, the bottom plate can be conveniently moved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicle maintenance, in particular to a motor vehicle bogie maintenance lifting platform. Background Art

[0002] With the construction of railway network, EMUs have become the preferred means of transportation for people to travel long distances, and EMUs are also taking on more and more heavy transportation tasks. Therefore, in order to ensure the safety of operation, regular and comprehensive maintenance of EMUs is of utmost importance. At present, the maintenance of EMUs usually involves driving the EMUs into the maintenance station and lifting the EMUs with a car crane so as to inspect the EMU body and bogies.

[0003] Upon investigation, the Chinese utility model patent with the publication number CN220684529U discloses a vehicle-lifting device for a motor vehicle. When the motor vehicle is overhauled, a corresponding number of bogie lifting devices are set according to the vehicle model to be overhauled, and the bogie lifting device is moved to a corresponding position in the trench by a first moving mechanism, and then the bogie is connected to the first lifting mechanism, and the bogie and the car body are lifted away from the ground by the first lifting mechanism. After lifting, it is convenient for workers to disassemble the bogie and the car body. After the bogie is separated from the car body, a corresponding number of mobile vehicle-lifting devices are set on both sides of the car body according to the vehicle model, and the mobile vehicle-lifting device is moved to a corresponding position by a second moving mechanism, and the second lifting mechanism is connected to the car body and supports the car body. At this time, the first supporting mechanism can only drive the bogie to descend, and the maintenance personnel can move the bogie lifting device and the bogie along the trench to a dedicated maintenance site, which is convenient for the maintenance personnel to overhaul the car body and the bogie. However, it is known through searching that there will be a certain deviation in the parking location of the EMU each time. Since the steering lifting device is fixed inside the ditch, it is impossible to fine-tune the position of the steering lifting device according to the parking location of the EMU, resulting in uneven bearing force on the steering lifting device, which can easily cause deformation of the steering lifting device.

[0004] Therefore, the utility model provides a motor vehicle bogie maintenance lifting platform to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a motor vehicle bogie maintenance lifting platform, aiming to solve the problem proposed in the background technology that the existing steering lifting device is fixed inside a trench, the position of the steering lifting device cannot be fine-tuned according to the parking location of the motor vehicle, resulting in uneven bearing force on the steering lifting device, which is easy to cause deformation of the steering lifting device, and the like.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a motor vehicle bogie maintenance lifting platform, comprising a lifting platform arranged in a trench and a lifting assembly arranged below the lifting platform;

[0009] A moving assembly for moving the lifting platform is arranged between the lower part of the lifting assembly and the trench; the moving assembly comprises a bottom plate, the bottom end of which is symmetrically and fixedly connected to two second sliders, the bottom of which is slidably sleeved with a second guide rail fixedly connected to the bottom wall of the trench; the lifting platform can be moved to the lower part of the motor vehicle bogie by means of the moving assembly, and the position of the lifting platform can be fine-tuned according to the parking location of the motor vehicle bogie, thereby improving the compatibility of the lifting platform with the motor vehicle bogie and improving the practicality of the device;

[0010] Both sides of the bottom end of the bottom plate are provided with locking components for fixing the bottom plate in the trench; the locking screws are used to move up and down on the bottom plate, thereby conveniently fixing the bottom plate in the trench and also conveniently moving the bottom plate.

[0011] Preferably, the locking assembly comprises a locking screw threadedly inserted on the base plate, and the top end of the locking screw is fixedly connected to a second hand wheel.

[0012] Preferably, the bottom of the locking screw is conical.

[0013] Preferably, the lifting assembly includes hinged plates symmetrically arranged between the lifting platform and the base plate and hinged to each other, both ends of the hinged plates are hinged with first sliders, and the opposite sides of the two first sliders are slidably sleeved with first guide rails fixedly connected to the opposite end of the lifting platform and the base plate, and a driving member for driving the hinged plates hinged to each other to perform hinged motion is provided on the base plate.

[0014] Preferably, the driving member comprises a double-headed hydraulic cylinder fixedly mounted on the base plate, a synchronization plate is fixedly connected between two first sliding blocks located in the same plane and on the same side, and the output end of the double-headed hydraulic cylinder is fixedly connected to the synchronization plate.

[0015] Preferably, positioning components are provided at both ends of the lifting platform, and the positioning components include a threaded sleeve, an adjusting screw is threadedly inserted on the threaded sleeve, the top end of the adjusting screw is rotatably connected to a U-shaped clamping plate, and the bottom end of the adjusting screw is fixedly connected to a first hand wheel; the present application utilizes the positioning component to position and lock the lifting platform and the EMU bogie, thereby avoiding displacement between the lifting platform and the EMU bogie when impacted by external force.

[0016] Preferably, in order to improve the compatibility of the positioning assembly with the EMU bogie, a guide groove for sliding the threaded sleeve is provided on the lifting platform, and both ends of the outer wall of the threaded sleeve are fixedly connected with a fixing ring in contact with the end face of the lifting platform.

[0017] (III) Beneficial effects

[0018] The present application utilizes a moving component to move the lifting platform to the bottom of the EMU bogie, and can fine-tune the position of the lifting platform according to the parking location of the EMU rotating frame, thereby improving the compatibility of the lifting platform and the EMU bogie and improving the practicality of the device; the locking screw is used to perform lifting and lowering movements on the base plate, thereby facilitating the fixing of the base plate in the trench and facilitating the movement of the base plate.

[0019] The present application utilizes a positioning assembly to position and lock the lifting platform and the motor vehicle bogie, thereby preventing displacement between the lifting platform and the motor vehicle bogie when impacted by external forces. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a motor vehicle bogie maintenance lifting platform;

[0021] Figure 2 It is a schematic diagram of the connection structure between the lifting component and the lifting platform and the moving component;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the lifting platform;

[0023] Figure 4 It is a schematic diagram of the connection structure between the base plate and the locking assembly;

[0024] Figure 5 It is a schematic diagram of the lifting component structure.

[0025] In the figure:

[0026] 1. Trench; 2. Lifting platform; 3. Positioning assembly; 31. Threaded sleeve; 32. Fixing ring; 33. U-shaped clamping plate; 34. First hand wheel; 35. Adjusting screw; 36. Guide slide; 4. Lifting assembly; 41. Articulated plate; 42. First slider; 43. First guide rail; 44. Synchronous plate; 45. Double-head hydraulic cylinder; 5. Moving assembly; 51. Bottom plate; 52. Second slider; 53. Second guide rail; 6. Locking assembly; 61. Locking screw; 62. Second hand wheel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides a motor vehicle bogie maintenance lifting platform, such as Figure 1-5 As shown, the lifting platform includes a lifting platform 2 arranged in a trench 1 and a lifting assembly 4 arranged below the lifting platform 2;

[0029] A moving assembly 5 for moving the lifting platform 2 is arranged between the lower part of the lifting assembly 4 and the trench 1; the moving assembly 5 comprises a bottom plate 51, and two second sliders 52 are symmetrically and fixedly connected to the bottom end of the bottom plate 51, and the bottom sliding sleeve of the second slider 52 is slidably sleeved with a second guide rail 53 fixedly connected to the bottom wall of the trench 1; the moving assembly 5 can be used to move the lifting platform 2 to the lower part of the EMU bogie, and the position of the lifting platform 2 can be fine-tuned according to the parking location of the EMU rotating frame, thereby improving the adaptability of the lifting platform 2 and the EMU bogie and improving the practicability of the device.

[0030] In order to fix the moving assembly 5 inside the trench 1, locking assemblies 6 for fixing the bottom plate 51 in the trench 1 are provided on both sides of the bottom end of the bottom plate 51; the locking assembly 6 includes a locking screw 61 threadedly inserted on the bottom plate 51, and a second hand wheel 62 is fixedly connected to the top of the locking screw 61; the locking screw 61 is lifted and lowered on the bottom plate 51, thereby facilitating the fixing of the bottom plate 51 in the trench 1 and facilitating the movement of the bottom plate 51;

[0031] When in use, first move the position of the lifting platform 2 according to the parking position of the EMU. When moving, push the lifting platform 2, and the lifting platform 2 drives the bottom plate 51 to move through the lifting component 4. The bottom plate 51 drives the second slider 52 to slide along the second guide rail 53 until the lifting platform 2 moves to the bottom of the EMU bogie and stops. At this time, the lifting platform 2 is adjusted to the bottom of the EMU bogie through the lifting component 4, and then the position of the lifting platform 2 is fine-tuned through the moving component 5 until the lifting platform 2 moves to a position suitable for supporting the EMU bogie and stops. At this time, hold the second hand wheel 62, and then rotate the second hand wheel 62 clockwise to drive the locking screw 61 to rotate, and then make the bottom end of the locking screw 61 tightly contact the bottom wall of the ditch 1 and stop. At this time, the position of the lifting platform 2 is fixed.

[0032] Furthermore, the bottom of the locking screw 61 is in a cone shape.

[0033] Specifically, the lifting assembly 4 includes a hinged plate 41 symmetrically arranged between the lifting platform 2 and the base plate 51 and hinged to each other, and first sliders 42 are hinged at both ends of the hinged plate 41, and the opposite sides of the two first sliders 42 are slidably sleeved with a first guide rail 43 fixedly connected to the opposite end of the lifting platform 2 and the base plate 51, and a driving member for driving the hinged plates 41 hinged to each other for hinged movement is provided on the base plate 51; the driving member includes a double-headed hydraulic cylinder 45 fixedly mounted on the base plate 51, and a synchronous plate 44 is fixedly connected between the two first sliders 42 located in the same plane and on the same side, and the output end of the double-headed hydraulic cylinder 45 is fixedly connected to the synchronous plate 44; when in use, the two synchronous plates 44 are driven to move in opposite directions by the output ends at both ends of the double-headed hydraulic cylinder 45, and the synchronous plate 44 drives the first slider 42 to slide along the first guide rail 43, thereby causing the hinged plate 41 to hinge and move, so that the lifting platform 2 rises.

[0034] Furthermore, positioning components 3 are provided at both ends of the lifting platform 2, and the positioning components 3 include a threaded sleeve 31, and an adjusting screw 35 is threadedly inserted on the threaded sleeve 31. The top end of the adjusting screw 35 is rotatably connected to a U-shaped clamping plate 33, and the bottom end of the adjusting screw 35 is fixedly connected to a first hand wheel 34. The positioning components 3 can be used to position and lock the lifting platform 2 and the motor vehicle bogie to avoid displacement between the lifting platform 2 and the motor vehicle bogie when they are impacted by external forces.

[0035] When in use, first hold the first hand wheel 34, then rotate the first hand wheel 34 clockwise to drive the adjusting screw 35 to rotate, and then make the U-shaped clamping plate 33 clamped on the corresponding position of the motor vehicle bogie to complete the locking of the lifting platform 2 and the motor vehicle bogie.

[0036] Furthermore, in order to improve the compatibility of the positioning assembly 3 and the EMU bogie, a guide groove 36 for the threaded sleeve 31 to slide is provided on the lifting platform 2, and both ends of the outer wall of the threaded sleeve 31 are fixedly connected with a fixing ring 32 in contact with the end face of the lifting platform 2. The position of the positioning assembly 3 can be fine-tuned through the guide groove 36, thereby further improving the compatibility of the lifting platform 2 and the EMU bogie.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lifting platform for inspecting and repairing a motor vehicle bogie, comprising a lifting platform (2) arranged in a trench (1) and a lifting assembly (4) arranged below the lifting platform (2); Features: A moving assembly (5) for moving the lifting platform (2) is provided between the bottom of the lifting assembly (4) and the trench (1); The moving assembly (5) comprises a bottom plate (51), the bottom end of the bottom plate (51) is symmetrically fixedly connected to two second sliders (52), and the bottom of the second slider (52) is slidably sleeved with a second guide rail (53) fixedly connected to the bottom wall of the trench (1); Locking components (6) for fixing the bottom plate (51) in the trench (1) are provided on both sides of the bottom end of the bottom plate (51).

2. The motor vehicle bogie maintenance lifting platform according to claim 1 is characterized in that: The locking assembly (6) comprises a locking screw (61) threadedly inserted on the bottom plate (51), and the top end of the locking screw (61) is fixedly connected to a second hand wheel (62).

3. The motor vehicle bogie maintenance lifting platform according to claim 2 is characterized in that: The bottom of the locking screw (61) is in a cone shape.

4. The motor vehicle bogie maintenance lifting platform according to claim 1 is characterized in that: The lifting assembly (4) comprises hinged plates (41) symmetrically arranged between the lifting platform (2) and the bottom plate (51) and hinged to each other, both ends of the hinged plates (41) are hinged with first sliders (42), and opposite sides of the two first sliders (42) are slidably sleeved with first guide rails (43) fixedly connected to the opposite ends of the lifting platform (2) and the bottom plate (51), and a driving member for driving the hinged plates (41) to perform hinged motion is arranged on the bottom plate (51).

5. The motor vehicle bogie maintenance lifting platform according to claim 4 is characterized in that: The driving member comprises a double-headed hydraulic cylinder (45) fixedly mounted on a bottom plate (51), a synchronizing plate (44) fixedly connected between two first sliding blocks (42) located in the same plane and on the same side, and an output end of the double-headed hydraulic cylinder (45) is fixedly connected to the synchronizing plate (44).

6. The motor vehicle bogie maintenance lifting platform according to claim 1 is characterized in that: Both ends of the lifting platform (2) are provided with positioning components (3), and the positioning components (3) include a threaded sleeve (31), an adjusting screw (35) is threadedly inserted on the threaded sleeve (31), the top end of the adjusting screw (35) is rotatably connected to a U-shaped clamping plate (33), and the bottom end of the adjusting screw (35) is fixedly connected to a first hand wheel (34).

7. The motor vehicle bogie maintenance lifting platform according to claim 6 is characterized in that: The lifting platform (2) is provided with a guide groove (36) for the threaded sleeve (31) to slide, and both ends of the outer wall of the threaded sleeve (31) are fixedly connected with a fixing ring (32) in contact with the end surface of the lifting platform (2).

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