360-degree advancing type flat car

Abstract

The utility model relates to the technical field of flatcars, and provides a 360-degree advancing type flatcar which comprises a movable frame, two driving wheel sets are symmetrically arranged below a mounting plate, and sliding wheels are arranged at the four corners of the lower portion of the mounting plate. A driving device used for driving the mounting plate to rotate by 360 degrees is arranged between the mounting plate and the movable frame, and a storage battery is arranged on the movable frame. The driving device can drive the driving wheel set on the mounting plate to rotate by 360 degrees, after the mounting plate rotates by 90 degrees, the driving wheel set on the movable frame moves transversely in the process that the longitudinal movement of the flatcar is converted into the transverse movement, and on the contrary, the longitudinal movement of the flatcar is converted into the transverse movement of the flatcar.

Description

Technical Field

[0001] This utility model relates to the field of flatbed cart technology, and in particular to a 360-degree traveling flatbed cart. Background Technology

[0002] Currently, flatcars are mainly used to transport large or heavy goods such as steel, timber, automobiles, and machinery. They can also be used with the aid of containers to transport other goods. Flatcars can also meet national defense needs by loading various military equipment. Flatcars equipped with movable side panels can also be used to transport bulk goods such as ore, sand, and slag.

[0003] An active positioning structure for an electric flatbed cart, disclosed in patent publication CN221498003U, includes an electric flatbed cart. A receiving plate is fixedly connected to the top of the electric flatbed cart, and a base plate is fixedly connected to the top of the receiving plate. A fixing structure is provided on one side of the top of the base plate. The fixing structure includes a fixing plate fixedly connected to the electric flatbed cart. Two irregular gears are rotatably connected to the top of the fixing plate, and the two irregular gears mesh with each other. A motor is mounted on the top of one of the irregular gears, and the output shaft of the motor is fixedly connected to the irregular gear. A transmission plate is fixedly connected to the surface of the irregular gear. This flatbed cart, through its fixing structure, can accommodate items of different widths and can accurately and safely fix items of varying widths onto the cart's loading platform. However, when the flatbed cart needs to switch from lateral to longitudinal movement, the front wheels need to deflect in an arc to achieve this change. In situations where there is insufficient space, this can easily prevent the flatbed cart from switching between lateral and longitudinal directions. Utility Model Content

[0004] The purpose of this invention is to provide a 360-degree traveling flatcar that can freely switch between horizontal and vertical directions while the car is in place.

[0005] The present invention adopts the following technical solution: a 360-degree traveling flatcar, including a movable frame, two symmetrically arranged drive wheel sets below the mounting plate, sliding wheels at the four corners below the mounting plate, a drive device for driving the mounting plate to rotate 360 ​​degrees between the mounting plate and the movable frame, and a storage battery on the movable frame.

[0006] Preferably, the driving device includes a gear disk and a power unit. The gear disk is rotatably mounted below the movable frame. The mounting plate is mounted on the gear disk and rotates synchronously with the gear disk. The power unit is disposed on the first fixed frame and located on one side of the gear disk. The power unit is used to drive the gear disk to rotate.

[0007] Preferably, the active wheel assembly includes a mounting cover fixed to the mounting plate, a drive wheel is installed inside the mounting cover, and a driver is provided on one side of each of the two mounting covers opposite to each other. The driver is electrically connected to the battery via a control circuit.

[0008] Preferably, there is a transmission gear between the output gear and the drive gear disk, the transmission gear meshes with the drive gear disk, and the protective cover has a notch, through which the output gear meshes with the transmission gear.

[0009] Preferably, the thickness of the drive gear is less than the thickness of the transmission gear.

[0010] Preferably, a first fixing frame is fixedly connected to the lower part of the movable frame by bolts, a vertically arranged first mounting shaft is fixedly connected to the first fixing frame, the mounting plate is disposed on the first fixing frame, and the transmission gear is fixed to the first fixing frame by a second mounting shaft.

[0011] Preferably, a first mounting shaft is fixedly connected to the lower part of the first fixed frame, the mounting plate is fixed to the gear plate by bolts, a sliding groove is provided on the upper side of the gear plate and is concentric with the gear plate, and two lifting devices are provided above the first fixed frame, the driving ends of the two lifting devices pass through the first fixed frame and correspond to the sliding groove.

[0012] Preferably, the slide groove has two symmetrically arranged circular grooves in its circumference. The circular grooves are formed on the gear plate and communicate with the slide groove. The drive end of the lifting device is provided with a limiting plate, which enters the slide groove through the circular grooves.

[0013] The beneficial effects of this utility model are:

[0014] 1. The drive device can drive the active wheel set on the mounting plate to achieve 360-degree rotation. After the mounting plate rotates 90 degrees, the flatcar changes from longitudinal movement to lateral movement, which in turn causes the active wheel set on the moving frame to move laterally. Conversely, the same applies when the flatcar moves from longitudinal movement to lateral movement.

[0015] 2. The lifting device separates the two drive wheels from the ground. Then, the power unit rotates the drive gear, which in turn rotates the two drive wheels on the first fixed frame to a preset angle. At the same time, the drive end of the lifting device rotates along the groove on the gear, so that the drive end of the lifting device is always connected to the gear. This ensures that the rotation of the gear is not affected when the lifting device is connected to the gear, thereby reducing the friction between the drive wheels and the ground and increasing the service life of the drive wheels. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the flatbed cart of this utility model;

[0017] Figure 2 This is a bottom-view three-dimensional structural diagram of the flatbed cart of this utility model;

[0018] Figure 3 This is a top-view three-dimensional structural diagram of the flatbed cart of this utility model;

[0019] Figure 4 This is a side view of the flatbed cart of this utility model.

[0020] Figure 5 This is a schematic diagram of the power unit of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the toothed disc of this utility model.

[0022] In the picture:

[0023] 1. Moving frame; 2. Mounting plate; 3. Sliding wheel; 4. Drive wheel assembly; 5. Power unit; 6. Gear disc; 7. Battery; 11. First fixed frame; 12. Lifter; 13. First mounting shaft; 14. Transmission gear; 15. Second mounting shaft; 31. Second fixed frame; 41. Mounting cover; 42. Drive wheel; 43. Driver; 51. Protective cover; 52. Output gear; 61. Slide groove; 62. Circular groove. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0025] like Figures 1 to 6 As shown, this utility model provides a 360-degree traveling flatbed cart, including a movable frame 1, a support plate for carrying goods on the upper part of the movable frame 1, a mounting plate 2 in the lower middle part of the movable frame 1, two symmetrically arranged drive wheel sets 4 below the mounting plate 2, sliding wheels 3 at the four corners below the mounting plate 2, the sliding wheels 3 are universal wheels, a second fixing frame 31 for mounting the sliding wheels 3 is provided below the movable frame 1, a drive device for driving the mounting plate 2 to achieve 360-degree rotation is provided between the mounting plate 2 and the movable frame 1, and a storage battery 7 is provided in the middle of one end of the movable frame 1.

[0026] The drive unit includes a gear 6 and a power unit 5. The gear 6 is rotatably mounted below the movable frame 1. The mounting plate 2 is mounted on the gear 6 and rotates synchronously with the gear 6. The power unit 5 is set on the first fixed frame 11 and located on one side of the gear 6. The power unit 5 is used to drive the gear 6 to rotate. The active wheel set 4 on the mounting plate 2 will rotate synchronously with the gear 6 to realize the overall 360-degree rotation of the movable frame 1.

[0027] The active wheel assembly 4 includes a mounting cover 41 fixed on the mounting plate 2. A drive wheel 42 is installed inside the mounting cover 41. The drive wheel 42 and the sliding wheel 3 are in contact with the ground simultaneously during use. A driver 43 is provided on one side opposite to the two mounting covers 41. The driver 43 is electrically connected to the battery 7 through a control circuit. The driver 43 is a servo motor. The output end of the driver 43 passes through the mounting cover 41 and is connected to the shaft of the drive wheel 42. A right-angle reducer is installed at the output end of the driver 43.

[0028] The power unit 5 includes a motor, which is a servo motor. The power unit 5 is electrically connected to the battery 7 through a control circuit. A right-angle reducer is installed at the output end of the power unit 5. A protective cover 51 is provided on the right-angle reducer. The protective cover 51 is fixed to the mounting plate 2 by bolts. An output gear 52 fixed to the output end of the right-angle reducer is provided inside the protective cover 51. In order to better realize the stability of the transmission between the output gear 52 and the drive gear 6, in this embodiment, there is a transmission gear 14 between the output gear 52 and the drive gear 6. The transmission gear 14 meshes with the drive gear 6. The protective cover 51 has a notch. The output gear 52 meshes with the transmission gear 14 through the notch. The thickness of the drive gear 6 is less than the thickness of the transmission gear 14 so that the drive gear 6 always meshes with the transmission gear 14 during the up and down movement.

[0029] In the above scheme, the power unit 5 drives the two drive wheels 42 on the first fixed frame 11 to rotate 360 ​​degrees through the output gear 52, transmission gear 14, and gear plate 6. The sliding wheel 3 follows the rotation of the drive wheel set 4. After the power unit 5 causes the first fixed frame 11 on the gear plate 6 to rotate 90 degrees through the output gear 52, the moving frame 1 achieves the effect of changing the flatcar from longitudinal movement to lateral movement while the position remains unchanged. Conversely, the same applies to the flatcar from longitudinal movement to lateral movement. The two drive wheel sets 4 achieve the 360-degree rotation of the entire vehicle through two drivers 43, one rotating forward and the other in reverse. Since the power unit 5 is not working, the first fixed frame 11 is fixed to the moving frame 1, thereby causing the moving frame 1 to change direction with the drive wheels 42. This achieves the effect of changing the flatcar from longitudinal movement to lateral movement while the moving frame 1 follows the change in the direction of movement of the two drive wheels 42.

[0030] like Figure 3 As shown, in order to facilitate the installation of the mounting plate 2, in this embodiment, a first fixing frame 11 is fixedly connected to the lower part of the movable frame 1 by bolts, a vertically arranged first mounting shaft 13 is fixedly connected to the first fixing frame 11, the mounting plate 2 is set on the first fixing frame 11, and the transmission gear 14 is fixed on the first fixing frame 11 by the second mounting shaft 15.

[0031] like Figure 3 , Figure 5 and Figure 6 As shown, in order to ensure that the position of the moving frame 1 remains unchanged while changing the movement direction of the two drive wheels 42 from lateral to longitudinal, in this embodiment, a first mounting shaft 13 is fixedly connected to the lower part of the first fixed frame 11. The gear disk 6 is rotatably mounted on the first mounting shaft 13 through bearings. A through hole corresponding to the first mounting shaft 13 is opened in the middle of the first fixed frame 11 to avoid the gear disk 6 being blocked by the first fixed frame 11 when it moves up and down along the first mounting shaft 13. The mounting plate 2 is fixed to the gear disk 6 with bolts. A sliding groove 61 concentrically arranged with the gear disk 6 is opened on the upper side of the gear disk 6. The cross-section of the sliding groove 61 is "convex". The slide 61 has two symmetrically arranged circular grooves 62 around its circumference. The circular grooves 62 are formed on the gear plate 6 and communicate with the slide 61. Two lifting devices 12 are arranged above the first fixed frame 11. The driving ends of the two lifting devices 12 pass through the first fixed frame 11 and correspond to the slide 61. The slide 61 is designed to prevent the driving ends of the lifting devices 12 from obstructing the gear plate 6 during rotation. The circular grooves 62 are designed to facilitate the connection between the driving ends of the lifting devices 12 and the gear plate 6. The driving ends of the lifting devices 12 are provided with a limiting plate (not shown in the figure). The diameter of the limiting plate is adapted to the diameter of the circular groove 62. The limiting plate enters the slide 61 through the circular groove 62.

[0032] In the above scheme, the lifting device 12 drives the first fixed frame 11 on the gear plate 6 to move upward through the connection between the driving end and the slide 61, and drives the two driving wheels 42 to separate from the ground. At this time, the power unit 5 drives the gear plate 6 to rotate through the output gear 52 and the transmission gear 14, so that the two driving wheels 42 on the first fixed frame 11 rotate to a preset angle. At the same time, the driving end of the lifting device 12 rotates along the slide 61 on the gear plate 6, so that the driving end of the lifting device 12 is always connected to the gear plate 6, ensuring that the rotation of the gear plate 6 is not affected when the lifting device 12 is connected to the gear plate 6, thereby reducing the friction between the driving wheel 42 and the ground and increasing the service life of the driving wheel 42.

[0033] The working principle of this utility model:

[0034] When the moving frame 1 changes from horizontal to vertical movement, the two power units 5 drive the two output gears 52 to rotate. The output gears 52 drive the first fixed frame 11 on the gear plate 6 to rotate 90 degrees through the transmission gear 14. Due to the pressure of the goods on the moving frame 1, only the two drive wheels 42 on the first fixed frame 11 rotate. Therefore, the position and direction of the moving frame 1 remain unchanged when the first fixed frame 11 rotates, thereby changing the movement direction of the moving frame 1 from horizontal to vertical.

[0035] When the direction of the moving frame 1 needs to be turned 360 degrees, the two drives 43 drive the two drive wheels 42 in opposite directions, thereby realizing the 360-degree rotation of the entire moving frame 1.

[0036] When the position and orientation of the moving frame 1 remain unchanged, as the moving direction of the moving frame 1 changes from horizontal to vertical, the first fixed frame 11 rotates (within 90 degrees). This is achieved by the lifting end of the lifting device 12 driving the first fixed frame 11 on the gear plate 6 to rise, creating a gap between the driver 43 on the first fixed frame 11 and the ground. This allows the four sliding wheels 3 on the moving frame 1 to support the moving frame 1. Subsequently, the power unit 5 drives the first fixed frame 11 on the gear plate 6 to rotate through the output gear 52 and the transmission gear 14. After the two drive wheels 42 on the first fixed frame 11 have rotated, the lifting device 12 is activated, causing the two drive wheels 42 on the first fixed frame 11 to descend and contact the ground again. This achieves the change of orientation of the drive wheel set 4 while keeping the position and orientation of the moving frame 1 unchanged, thereby reducing the friction between the drive wheels 42 and the ground and increasing the service life of the drive wheels 42.

[0037] Although the present invention / utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention / utility model should be included within the protection scope of the present invention / utility model.

Claims

1. A 360-degree traveling flatcar, comprising a movable frame, characterized in that: The mobile frame has a mounting plate at its lower center, two symmetrically arranged drive wheel sets at its lower bottom, and sliding wheels at each of the four lower corners of the mounting plate. A drive device for driving the mounting plate to rotate 360 ​​degrees is provided between the mounting plate and the mobile frame. A battery is provided on the mobile frame.

2. The 360-degree traveling flatcar according to claim 1, characterized in that: The driving device includes a gear disk and a power unit. The gear disk is rotatably mounted below the movable frame. The mounting plate is mounted on the gear disk and rotates synchronously with the gear disk. The power unit is set on the first fixed frame and located on one side of the gear disk. The power unit is used to drive the gear disk to rotate.

3. The 360-degree traveling flatcar according to claim 1, characterized in that: The active wheel assembly includes a mounting cover fixed to a mounting plate, a drive wheel installed inside the mounting cover, and a driver is provided on one side of each of the two mounting covers opposite each other. The driver is electrically connected to the battery via a control circuit.

4. The 360-degree traveling flatcar according to claim 2, characterized in that: The power unit includes a motor and is electrically connected to a battery via a control circuit. A protective cover is installed at the output end of the power unit and is fixed to a mounting plate by bolts. An output gear fixed to the output end of a right-angle reducer is provided inside the protective cover.

5. The 360-degree traveling flatcar according to claim 4, characterized in that: There is a transmission gear between the output gear and the drive gear disk, and the transmission gear meshes with the drive gear disk. The protective cover has a notch, and the output gear meshes with the transmission gear through the notch.

6. The 360-degree traveling flatcar according to claim 5, characterized in that: The thickness of the drive gear is less than the thickness of the transmission gear.

7. The 360-degree traveling flatcar according to claim 5, characterized in that: A first fixed frame is fixedly connected to the bottom of the movable frame by bolts. A vertically arranged first mounting shaft is fixedly connected to the first fixed frame. The mounting plate is disposed on the first fixed frame. The transmission gear is fixed to the first fixed frame by a second mounting shaft.

8. The 360-degree traveling flatcar according to claim 7, characterized in that: A first mounting shaft is fixedly connected to the lower part of the first fixed frame. The mounting plate is fixed to the gear plate by bolts. A sliding groove concentrically arranged with the gear plate is opened on the upper side of the gear plate. Two lifting devices are arranged above the first fixed frame. The driving ends of the two lifting devices pass through the first fixed frame and correspond to the sliding groove.

9. The 360-degree traveling flatcar according to claim 8, characterized in that: The slide has two symmetrically arranged circular grooves on its circumference. The circular grooves are opened on the gear plate and communicate with the slide. The drive end of the lifter is provided with a limiting plate, which enters the slide through the circular groove.

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