Maintenance lifting platform car walking mechanism
By designing the walking mechanism of the maintenance lifting platform car and using the transmission components to achieve fine-tuning and driving of the rear wheels, the existing maintenance platform car is solved and the maintenance efficiency is improved.
Patent Information
- Application Number
- CN202422363747.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing maintenance platform vehicles are inefficient when adjusting their position, making it difficult to quickly transport to the designated location, resulting in inefficient maintenance.
A driving mechanism for maintenance and lifting platform vehicles is designed, including a transmission assembly for the bottom frame, front and rear wheels and driving the rear wheels. The transmission assembly realizes fine-tuning and driving the rear wheels through chains, differentials, gear sets and handwheels, improving the accuracy and efficiency of position adjustment.
With the handwheel and transmission components driving the rear wheels, maintenance personnel can quickly fine-tune the position of the maintenance platform vehicle, significantly improve maintenance efficiency and reduce time consumption in position adjustment.
Smart Images
Figure CN223047198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lifting equipment, in particular to a traveling mechanism of a maintenance lifting platform vehicle. Background Art
[0002] Maintenance platform vehicles are used for aircraft maintenance at airports. Currently, general maintenance platform vehicles have lifting and traveling functions. The maintenance platform vehicle is towed by a tractor for traveling, and the maintenance platform vehicle itself does not have a driving mechanism. It is difficult to transport the maintenance platform vehicle to a designated position by relying on a trailer, and more time is often spent on position adjustment, resulting in low maintenance efficiency. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a traveling mechanism of a maintenance lifting platform vehicle, which has high stability and can improve efficiency.
[0004] To solve the above technical problem, the technical solution of the utility model is: a traveling mechanism of a maintenance lifting platform vehicle, including a bottom frame, front wheels arranged on both sides of the front part of the bottom frame, rear wheels arranged on both sides of the rear part of the bottom frame, and a transmission assembly for driving the rear wheels. The transmission assembly includes a wheel axle connecting the two rear wheels, a first transmission rod arranged parallel to the wheel axle, a second transmission rod perpendicular to the first transmission rod, and a third transmission rod arranged above the first transmission rod and perpendicular to the second transmission rod. The first transmission rod and the wheel axle are driven by a chain, the lower end of the second transmission rod and the first transmission rod are driven by a differential, one end of the third transmission rod and the upper end of the second transmission rod are driven by a gear set, and a handwheel is arranged at the other end of the third transmission rod. Principle of the utility model: The utility model has traveling and lifting functions and is used for aircraft maintenance and repair. After the trailer transports the maintenance lifting platform vehicle to a designated position through a towing rod, maintenance personnel drive the rear wheels to finely adjust the position through the handwheel and the transmission assembly, and maintenance personnel can achieve the most ideal effect through this function, improving the maintenance efficiency.
[0005] As an improvement, a towing rod is arranged at the front end of the bottom frame, and the towing rod is installed on the bottom frame through a hinge seat.
[0006] As an improvement, the towing rod drives a brake rod to rotate through a fourth transmission rod, and brakes for braking the rear wheels are arranged at both ends of the brake rod.
[0007] As an improvement, the wheel axle is installed on the bottom frame through a bearing seat, the first transmission rod is installed on the bottom frame through a bearing seat, the second transmission rod is installed on a bracket through a bearing seat, the third transmission rod is installed on the bracket through a bearing seat, the gear set is composed of two meshing crown gears, and the third transmission rod outputs power through a clutch.
[0008] The beneficial effects brought by the utility model compared with the prior art are:
[0009] After the trailer transports the maintenance lift platform vehicle to the designated position through the towing bar, the maintenance personnel drive the rear wheels to finely adjust the position through the handwheel and the transmission component. Through this function, the maintenance personnel can achieve the most ideal effect and improve the maintenance efficiency. Brief Description of the Drawings
[0010] Figure 1 It is a three-dimensional view of the maintenance lift platform vehicle.
[0011] Figure 2 It is a side view of the maintenance lift platform vehicle. Specific Embodiment
[0012] The present utility model will be further described below in conjunction with the drawings in the specification.
[0013] A maintenance lift platform vehicle includes a lift platform ladder and a traveling mechanism for driving the lift platform ladder to travel.
[0014] As Figure 1 , 2 shown, the lift platform ladder includes a bottom frame 1, a first-layer platform 4 provided above one side of the bottom frame 1, a second-layer platform 5 provided above the other side of the bottom frame 1, and a third-layer platform 7 provided above the first-layer platform 4; the third-layer platform 7 is higher than the second-layer platform 5, the second-layer platform 5 is higher than the first-layer platform 4, a first-layer staircase 3 is provided between the bottom frame 1 and the first-layer platform 4, a second-layer staircase 19 is provided between the first-layer platform 4 and the second-layer platform 5, and a third-layer staircase 6 is provided between the second-layer platform 5 and the third-layer platform 7. The bottom frame 1 is rectangular and is welded by a number of square pipes intersecting vertically and horizontally. A support 2 is provided on the bottom frame 1, the first-layer platform 4 and the second-layer platform 5 are fixed on the support 2, and the bottom of the third-layer platform 7 is fixed on the support 2 through a lifting mechanism 8. The lifting mechanism is a scissor-type hydraulic lifting mechanism with a short stroke, which is used to finely adjust the height of the third-layer platform 7; a control box for controlling the lifting mechanism 8 is provided on the third-layer platform 7, and the maintenance personnel standing on the third-layer platform 7 can control the height of the lifting mechanism 8 through the control box. The third-layer staircase 6 includes a number of staircase boards and two parallel support rods provided on both sides of the staircase boards. The two ends of the staircase boards are respectively hinged to the two support rods, one end of the support rods is hinged to the second-layer platform 5, and the other end of the support rods is hinged to the third-layer platform 7. The third-layer staircase 6 can adaptively deform with the change of the height of the third-layer platform 7. A towing bar 20 is provided at the front end of the bottom frame 1, and the towing bar 20 is installed on the bottom frame 1 through a hinge seat. The towing bar 20 can be turned up and down. When the towing bar 20 is in a horizontal state, it is in a traveling mode, and the towing vehicle drags the maintenance lift platform vehicle to travel through the towing bar 20. When the towing bar 20 is in a vertical state, it is in a braking mode, and the maintenance lift platform vehicle is in a braking state.
[0015] As Figure 1 ,2 As shown in the figure, the walking mechanism includes front wheels 9 provided on both sides of the front part of the bottom frame 1, rear wheels 16 provided on both sides of the rear part of the bottom frame 1, and a transmission assembly for driving the rear wheels 16. The transmission assembly includes a wheel axle 17 connecting the two rear wheels 16, a first transmission rod 13 arranged parallel to the wheel axle 17, a second transmission rod 12 perpendicular to the first transmission rod 13, and a third transmission rod 11 arranged above the first transmission rod 13 and perpendicular to the second transmission rod 12; a chain 15 is used for transmission between the first transmission rod 13 and the wheel axle 17, a differential 14 is used for transmission between the lower end of the second transmission rod 12 and the first transmission rod 13, a gear set is used for transmission between one end of the third transmission rod 11 and the upper end of the second transmission rod 12, and a handwheel 10 is provided at the other end of the third transmission rod 11; the wheel axle 17 is installed on the bottom frame 1 through a bearing seat, the first transmission rod 13 is installed on the bottom frame 1 through a bearing seat, the second transmission rod 12 is installed on the bracket 2 through a bearing seat, the third transmission rod 11 is installed on the bracket 2 through a bearing seat, the gear set is composed of two meshing crown gears, and the third transmission rod 11 outputs power through a clutch. When the maintenance lift truck is in normal walking state, the clutch separates the handwheel 10. When it is necessary to finely adjust the position of the maintenance lift truck, the handwheel 10 drives the rear wheels 16 through the transmission assembly. The towing rod 20 is connected to the brake rod 18 through a fourth transmission rod, both ends of the brake rod 18 are connected to the brake 21, and the brake 21 is used for braking the rear wheels 16. When the towing rod 20 is turned upwards, it drives the fourth transmission rod to drive the brake rod 18 to rotate.
[0016] The maintenance lift truck is also provided with a lighting device, a safety insurance and alarm device, and a power supply device. The power supply device includes a storage battery and a solar panel to meet the needs of night operations. The maintenance lift truck is transported to the designated aircraft maintenance location, the braking device is started, after determining the safe positions around the maintenance area, and the safety insurance and alarm device is turned on.
[0017] Principle of the utility model: The utility model has a walking function and a lifting function and is used for the maintenance and repair of aircraft; after the maintenance lift truck is transported to the designated position and stops, maintenance personnel can go up to the third layer platform 7 through the first layer platform 4, the second layer platform 5 and the stairs. The maintenance personnel can operate the lifting mechanism 8 on the third layer platform 7 to lift the third layer platform 7 to adapt to the maintenance position. Through this function, the maintenance personnel can achieve the most ideal effect and improve the maintenance efficiency.
Claims
1. A traveling mechanism for a maintenance lifting platform vehicle, characterized in that: The invention comprises a bottom frame, front wheels arranged on both sides of the front part of the bottom frame, rear wheels arranged on both sides of the rear part of the bottom frame and a transmission assembly for driving the rear wheels, wherein the transmission assembly comprises a wheel axle connecting the two rear wheels, a first transmission rod arranged parallel to the wheel axle, a second transmission rod perpendicular to the first transmission rod and a third transmission rod arranged above the first transmission rod and perpendicular to the second transmission rod, the first transmission rod and the wheel axle are driven by a chain, the lower end of the second transmission rod and the first transmission rod are driven by a differential, one end of the third transmission rod and the upper end of the second transmission rod are driven by a gear set, and the other end of the third transmission rod is provided with a hand wheel.
2. The traveling mechanism of a maintenance lifting platform vehicle according to claim 1, characterized in that: A traction rod is provided at the front end of the bottom frame, and the traction rod is installed on the bottom frame through a hinge seat.
3. The traveling mechanism of a maintenance lifting platform vehicle according to claim 2 is characterized in that: The traction rod drives the brake rod to rotate through the fourth transmission rod, and brakes for braking the rear wheels are arranged at both ends of the brake rod.
4. The traveling mechanism of a maintenance lifting platform vehicle according to claim 1, characterized in that: The wheel axle is mounted on the bottom frame through a bearing seat, the first transmission rod is mounted on the bottom frame through a bearing seat, the second transmission rod is mounted on the bracket through a bearing seat, the third transmission rod is mounted on the bracket through a bearing seat, the gear set consists of two mutually meshing crown gears, and the third transmission rod outputs power through a clutch.