A universal wheel device for a hydraulic lifting platform

Abstract

The present invention discloses a universal wheel device for a hydraulic lifting platform, which includes a positioning mechanism. An installation frame is provided at the lower part of the positioning mechanism, and a universal wheel is provided at the lower part of the installation frame. A first bevel gear is provided at the side position of the universal wheel, and the universal wheel is installed at the lower part of the installation frame through an installation shaft; a driven shaft is provided inside the positioning mechanism, a driving gear is provided at the upper end of the driven shaft, and a second bevel gear is provided at the lower end of the driven shaft. The second bevel gear meshes with the first bevel gear; a first stepping motor is provided on the positioning mechanism, a first driving shaft is provided at the lower part of the first stepping motor, and a first driving gear is provided at the lower part of the first driving shaft. The first driving gear meshes with the driving gear. The present invention can facilitate the forward or backward movement of the universal wheel device; the rotation of the synchronous wheel drives the driven shaft to rotate through the positioning part, which facilitates the control of the rotation adjustment of the universal wheel device; the flexible movement adjustment of the hydraulic lifting platform can be controlled through the universal wheel device.

Description

Technical Field

[0001] The present invention relates to a universal wheel device, and particularly to a universal wheel device for a hydraulic lifting platform. Background Art

[0002] Hydraulic lifting platforms are divided into fixed hydraulic lifting platforms, scissor hydraulic lifting platforms, mobile hydraulic lifting platforms, aluminum alloy hydraulic lifting platforms, and boarding bridge hydraulic lifting platforms; hydraulic lifting platforms are multifunctional lifting and loading and unloading mechanical equipment. Existing hydraulic lifting platforms are not convenient for flexible movement adjustment, and the operation efficiency of moving and adjusting the hydraulic lifting platform is low, and it is not convenient to realize automatic control. Summary of the Invention

[0003] The present invention mainly solves the technical problems existing in the prior art, and thus provides a universal wheel device for a hydraulic lifting platform that can facilitate the forward or backward movement of the universal wheel device; the rotation of the synchronous wheel drives the driven shaft to rotate through the positioning portion, facilitating the control of the rotation adjustment of the universal wheel device; and the flexible movement adjustment of the hydraulic lifting platform can be controlled through the universal wheel device.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] A universal wheel device for a hydraulic lifting platform includes a positioning mechanism. The lower part of the positioning mechanism is provided with a mounting frame. The lower part of the mounting frame is provided with universal wheels. A first bevel gear is arranged at the side of the universal wheels. The universal wheels are installed at the lower part of the mounting frame through a mounting shaft. A driven shaft is arranged in the positioning mechanism. The driven shaft is arranged vertically. A driving gear is arranged at the upper end of the driven shaft. A second bevel gear is arranged at the lower end of the driven shaft. The second bevel gear meshes with the first bevel gear. A first stepping motor is arranged on the positioning mechanism. A first driving shaft is arranged at the lower part of the first stepping motor. A first driving gear is arranged at the lower part of the first driving shaft. The first driving gear meshes with the driving gear. A second stepping motor is arranged on the positioning mechanism. A second driving shaft is arranged at the lower part of the second stepping motor. A second driving gear is arranged at the lower part of the second driving shaft. A synchronous wheel is arranged in the positioning mechanism. A positioning portion is arranged at the inner side of the synchronous wheel. A positioning hole is arranged at the axial position of the positioning portion. The driven shaft passes through the positioning hole of the positioning portion. A driving belt is wound between the synchronous wheel and the second driving gear.

[0006] Further, the positioning mechanism includes a positioning frame, which includes a first positioning plate and a second positioning plate. There are several docking shafts between the first positioning plate and the second positioning plate. A third positioning plate is sleeved between the middle positions of the docking shafts. There is a positioning cavity between the third positioning plate and the first positioning plate. The synchronous pulley is installed in the positioning cavity, the driven shaft is installed in the positioning cavity, and the upper part of the universal wheel is installed in the positioning cavity; The first stepping motor is installed on the second positioning plate, and the second stepping motor is installed on the third positioning plate.

[0007] Further, several positioning columns are provided on the second positioning plate, and the lower part of the first stepping motor is installed in the positioning columns.

[0008] Further, a gearbox is provided on the positioning mechanism. There is a speed-changing gear pair inside the gearbox, and the speed-changing gear pair is sleeved on the outer peripheral surface of the second driving shaft.

[0009] Further, the cross-section of the mounting frame is in a V shape.

[0010] For the universal wheel device used in the hydraulic lifting platform adopting the above technical solution, the operator can install multiple such universal wheel devices at the bottom of the hydraulic lifting platform; The first stepping motor controls the first driving gear to rotate through the first driving shaft. The rotation of the first driving gear drives the driving gear to rotate. The rotation of the driving gear drives the second bevel gear to rotate through the driven shaft. The rotation of the second bevel gear drives the first bevel gear to rotate. The rotation of the first bevel gear drives the universal wheel to rotate, so that the universal wheel device can conveniently move forward or backward; The second stepping motor controls the second driving gear to rotate through the second driving shaft. The second driving gear drives the synchronous pulley to rotate through the driving belt. The rotation of the synchronous pulley drives the driven shaft to rotate through the positioning part, which is convenient to control the rotation adjustment of the universal wheel device; Through this universal wheel device, the hydraulic lifting platform can be controlled to achieve flexible movement adjustment. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the universal wheel device for the hydraulic lifting platform of the present invention;

[0012] Figure 2 It is an exploded view of the components of the universal wheel device for the hydraulic lifting platform of the present invention;

[0013] Figure 3 It is a schematic structural diagram of the positioning mechanism of the present invention.

[0014] Legend: 1 - positioning mechanism, 2 - mounting bracket, 3 - universal wheel, 4 - first bevel gear, 5 - mounting shaft, 6 - driven shaft, 7 - driving gear, 8 - second bevel gear, 9 - first stepping motor, 10 - first driving shaft, 11 - first driving gear, 12 - second stepping motor, 13 - gearbox, 14 - second driving shaft, 15 - second driving gear, 16 - driving belt, 17 - positioning bracket, 18 - synchronous pulley, 19 - positioning part, 20 - positioning hole, 21 - first positioning plate, 22 - second positioning plate, 23 - docking shaft, 24 - third positioning plate, 25 - positioning cavity, 26 - positioning column. Detailed implementation

[0015] The present invention will be further described below in conjunction with the accompanying drawings of the specification and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0016] As Figures 1 to 3As shown in the figure, a universal wheel device for a hydraulic lifting platform includes a positioning mechanism 1. A mounting frame 2 is provided at the lower part of the positioning mechanism 1. A universal wheel 3 is provided at the lower part of the mounting frame 2. A first bevel gear 4 is provided at the side of the universal wheel 3. The universal wheel 3 is installed at the lower part of the mounting frame 2 through a mounting shaft 5. A driven shaft 6 is arranged vertically inside the positioning mechanism 1. A driving gear 7 is provided at the upper end of the driven shaft 6. A second bevel gear 8 is provided at the lower end of the driven shaft 6. The second bevel gear 8 meshes with the first bevel gear 4. A first stepping motor 9 is provided on the positioning mechanism 1. A first driving shaft 10 is provided at the lower part of the first stepping motor 9. A first driving gear 11 is provided at the lower part of the first driving shaft 10. The first driving gear 11 meshes with the driving gear 7. A second stepping motor 12 is provided on the positioning mechanism 1. A second driving shaft 14 is provided at the lower part of the second stepping motor 12. A second driving gear 15 is provided at the lower part of the second driving shaft 14. A synchronous pulley 18 is arranged inside the positioning mechanism 1. A positioning part 19 is provided at the inner side of the synchronous pulley 18. A positioning hole 20 is provided at the axial position of the positioning part 19. The driven shaft 6 passes through the positioning hole 20 of the positioning part 19. A driving belt 16 is wound between the synchronous pulley 18 and the second driving gear 15. The positioning mechanism 1 includes a positioning frame 17. The positioning frame 17 includes a first positioning plate 21 and a second positioning plate 22. A plurality of docking shafts 23 are arranged between the first positioning plate 21 and the second positioning plate 22. A third positioning plate 24 is sleeved between the middle positions of the docking shafts 23. A positioning cavity 25 is provided between the third positioning plate 24 and the first positioning plate 21. The synchronous pulley 18 is installed in the positioning cavity 25. The driven shaft 6 is installed in the positioning cavity 25. The upper part of the universal wheel 3 is installed in the positioning cavity 25. The first stepping motor 9 is installed on the second positioning plate 22. The second stepping motor 12 is installed on the third positioning plate 24. A plurality of positioning columns 26 are provided on the second positioning plate 22. The lower part of the first stepping motor 9 is installed in the positioning columns 26. A gearbox 13 is provided on the positioning mechanism 1. A speed-changing gear pair is arranged inside the gearbox 13. The speed-changing gear pair is sleeved on the outer peripheral surface of the second driving shaft 14. The cross-section of the mounting frame 2 is in a V-shaped configuration.

[0017] The universal wheel device of the present invention is used for a hydraulic lifting platform. An operator can install multiple such universal wheel devices at the bottom of the hydraulic lifting platform. The first stepping motor 9 controls the rotation of the first driving gear 11 through the first driving shaft 10. The rotation of the first driving gear 11 drives the rotation of the driving gear 7. The rotation of the driving gear 7 drives the rotation of the second bevel gear 8 through the driven shaft 6. The rotation of the second bevel gear 8 drives the rotation of the first bevel gear 4. The rotation of the first bevel gear 4 drives the rotation of the universal wheel 3, so that the universal wheel device can conveniently move forward or backward. The second stepping motor 12 controls the rotation of the second driving gear 15 through the second driving shaft 14. The second driving gear 15 drives the rotation of the synchronous pulley 18 through the driving belt 16. The rotation of the synchronous pulley 18 drives the rotation of the driven shaft 6 through the positioning part 19, facilitating the control of the rotation adjustment of the universal wheel device. Through this universal wheel device, the flexible movement adjustment of the hydraulic lifting platform can be controlled.

[0018] Among them, the positioning mechanism 1 includes a positioning frame 17. The positioning frame 17 includes a first positioning plate 21 and a second positioning plate 22. A number of docking shafts 23 are provided between the first positioning plate 21 and the second positioning plate 22. A third positioning plate 24 is sleeved between the middle positions of the docking shafts 23. A positioning cavity 25 is provided between the third positioning plate 24 and the first positioning plate 21. The synchronous pulley 18 is installed in the positioning cavity 25. The driven shaft 6 is installed in the positioning cavity 25. The upper part of the universal wheel 3 is installed in the positioning cavity 25. The first stepping motor 9 is installed on the second positioning plate 22. The second stepping motor 12 is installed on the third positioning plate 24. A number of positioning columns 26 are provided on the second positioning plate 22. The lower part of the first stepping motor 9 is installed in the positioning columns 26. Therefore, it is convenient to install the synchronous pulley 18, the driven shaft 6, the first stepping motor 9, the second stepping motor 12 and the universal wheel 3.

[0019] Among them, a gearbox 13 is provided on the positioning mechanism 1. A speed-changing gear pair is provided inside the gearbox 13. The speed-changing gear pair is sleeved on the outer peripheral surface of the second driving shaft 14. Therefore, the rotation of the second driving shaft 14 can be controlled through the gearbox 13.

[0020] The above is only the preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A universal wheel device for a hydraulic lifting platform, comprising a positioning mechanism (1). Characterized in that: A mounting frame (2) is provided at the lower part of the positioning mechanism (1), a universal wheel (3) is provided at the lower part of the mounting frame (2), a first bevel gear (4) is provided at the side position of the universal wheel (3), and the universal wheel (3) is mounted at the lower part of the mounting frame (2) through a mounting shaft (5); a driven shaft (6) is provided inside the positioning mechanism (1), the driven shaft (6) is arranged vertically, a driving gear (7) is provided at the upper end of the driven shaft (6), a second bevel gear (8) is provided at the lower end of the driven shaft (6), and the second bevel gear (8) meshes with the first bevel gear (4); a first stepping motor (9) is provided on the positioning mechanism (1), a first driving shaft (10) is provided at the lower part of the first stepping motor (9), a first driving gear (11) is provided at the lower part of the first driving shaft (10), and the first driving gear (11) meshes with the driving gear (7); a second stepping motor (12) is provided on the positioning mechanism (1), a second driving shaft (14) is provided at the lower part of the second stepping motor (12), a second driving gear (15) is provided at the lower part of the second driving shaft (14), a synchronous pulley (18) is provided inside the positioning mechanism (1), a positioning part (19) is provided at the inner side part of the synchronous pulley (18), a positioning hole (20) is provided at the axial position of the positioning part (19), the driven shaft (6) passes through the positioning hole (20) of the positioning part (19), a driving belt (16) is wound between the synchronous pulley (18) and the second driving gear (15), the positioning mechanism (1) comprises a positioning frame (17), the positioning frame (17) comprises a first positioning plate (21) and a second positioning plate (22), a plurality of docking shafts (23) are provided between the first positioning plate (21) and the second positioning plate (22), a third positioning plate (24) is sleeved between the middle positions of the docking shafts (23), a positioning cavity (25) is provided between the third positioning plate (24) and the first positioning plate (21), the synchronous pulley (18) is installed in the positioning cavity (25), the driven shaft (6) is installed in the positioning cavity (25), and the upper part of the universal wheel (3) is installed in the positioning cavity (25); the first stepping motor (9) is installed on the second positioning plate (22), the second stepping motor (12) is installed on the third positioning plate (24), a gearbox (13) is provided on the positioning mechanism (1), and a speed-changing gear pair is provided inside the gearbox (13), and the speed-changing gear pair is sleeved on the outer peripheral surface of the second driving shaft (14).

2. The universal wheel device for a hydraulic lifting platform according to claim 1, Characterized in that: A plurality of positioning columns (26) are provided on the second positioning plate (22), and the lower part of the first stepping motor (9) is installed inside the positioning columns (26).

3. The universal wheel device for a hydraulic lifting platform according to claim 1, Characterized in that: The cross section of the mounting frame (2) is in a V-shaped shape.

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