Damping differential wheel

Abstract

The utility model discloses a damping differential wheel which comprises a bottom frame, a first differential wheel body and a second differential wheel body are arranged on the two sides of the bottom frame respectively, a first driving mechanism used for driving the first differential wheel body to rotate and a second driving mechanism used for driving the second differential wheel body to rotate are arranged on the bottom frame, and the damping differential wheel further comprises a bearing plate. A first differential wheel and a second differential wheel are arranged on the base frame, a bearing plate is arranged on the base frame, a rotation driving mechanism used for driving the bearing plate to rotate is arranged at the bottom of the bearing plate, and the damping frame is arranged between the rotation driving mechanism and the base frame. And meanwhile, through the arrangement of the damping frame in the structure, 360-degree elastic damping of the bearing plate can be achieved, and then the stability of the trolley in the advancing process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of AGV trolleys, in particular to a shock-absorbing differential wheel. Background Art

[0002] Currently in the field of AGV carts, differential wheels are needed to achieve the turning of AGV carts. However, since AGV carts carry heavy objects, if bumps occur during movement or turning, it will easily cause the heavy objects on the cart to fall, thus posing a safety hazard. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a shock-absorbing differential wheel, which can reduce the bumps that occur during the movement of the rear AGV trolley, thereby ensuring its stability.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a shock-absorbing differential wheel, including a base frame, a first differential wheel and a second differential wheel are respectively arranged on both sides of the base frame, a first driving mechanism for driving the first differential wheel to rotate and a second driving mechanism for driving the second differential wheel to rotate are respectively arranged on the base frame, and also includes a supporting plate, a rotating driving mechanism for driving the supporting plate to rotate is arranged at the bottom of the supporting plate, and also includes a shock-absorbing frame arranged between the rotating driving mechanism and the base frame.

[0005] Furthermore, the shock-absorbing frame includes an upper mounting plate connected to the rotation drive mechanism and a lower mounting plate connected to the base frame, a plurality of elastic mechanisms are arranged between the upper mounting plate and the lower mounting plate, the first bearing frame and the second bearing frame are respectively installed on the corresponding two side edges of the lower mounting plate, the third bearing frame is arranged on the adjacent side of the first bearing frame, and the fourth bearing frame is arranged on the adjacent side of the second bearing frame, the third bearing frame and the fourth bearing frame are arranged opposite to each other, the third bearing frame and the fourth bearing frame are respectively fixedly connected to the lower surface of the upper mounting plate, and also include a connecting frame, the four side faces of the connecting frame are respectively provided with connecting columns, and the connecting columns on the four side faces are respectively rotatably connected to the first bearing frame, the second bearing frame, the third bearing frame and the fourth bearing frame through bearings.

[0006] Furthermore, the first bearing frame, the second bearing frame, the third bearing frame and the fourth bearing frame are both provided with elastic mechanisms at equal distances therefrom, and the distances between each elastic mechanism and the center of the shock absorber frame are equal.

[0007] Furthermore, the elastic structure includes an upper mounting column fixedly connected to the upper mounting plate and a lower mounting column fixedly connected to the lower mounting plate, a distance is set between the upper mounting column and the lower mounting column, and also includes a spring sleeved on the upper mounting column and the lower mounting column, the upper end of the spring abuts against the upper mounting plate, and the lower end of the spring abuts against the lower mounting plate.

[0008] Furthermore, the first driving mechanism and the second driving mechanism include a driving motor and a reducer connected to the output end of the motor;

[0009] The reducer includes a gear box, wherein a first gear rod, a second gear rod, a third gear rod and a fourth gear rod are respectively provided in the gear box, the first gear rod is an input rod, the fourth gear rod is an output rod, the first gear rod is provided with a first gear, the second gear rod is provided with a second gear meshing with the first gear, the second gear rod is also provided with a third gear, the third gear rod is provided with a fourth gear meshing with the third gear, the third gear rod is also provided with a fifth gear, and the fourth gear rod is provided with a sixth gear meshing with the fifth gear;

[0010] The first gear, the second gear, the fifth gear and the sixth gear are located in the same plane, and the third gear and the fourth gear are located in the same plane.

[0011] Furthermore, the rotary drive mechanism includes a gear plate fixed on the shock absorber frame, the gear plate is connected to the supporting plate through a rotary bearing, a rotary drive motor is provided on the supporting plate, a drive gear is provided on the driving end of the rotary drive motor, and the drive gear is engaged with the gear plate.

[0012] The beneficial effects of the present invention are as follows: in this structure, the first drive mechanism and the second drive mechanism are arranged to realize differential control of the first differential wheel and the second differential wheel, thereby realizing the stability of the trolley in turning; at the same time, in this structure, the shock-absorbing frame is arranged to realize 360-degree elastic shock absorption of the bearing plate, thereby ensuring the stability of the trolley during travel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the shock-absorbing differential wheel according to an embodiment of the present application.

[0014] Figure 2 This is a top view of the structure of the damping differential wheel according to an embodiment of the present application.

[0015] Figure 3 Schematic diagram of the structure of the shock-absorbing frame of the shock-absorbing differential wheel according to an embodiment of the present application.

[0016] Figure 4 This is a schematic diagram of the reducer structure of the shock-absorbing differential wheel according to an embodiment of the present application.

[0017] Marked in the figure are: chassis 1, first differential wheel 2, second differential wheel 3, first drive mechanism 4, second drive mechanism 5, bearing plate 6, shock absorber frame 7, upper mounting plate 71, lower mounting plate 72, first bearing frame 73, third bearing frame 74, bearing 75, connecting column 76, connecting frame 77, upper mounting column 781, lower mounting column 782, spring 783, gear box 8, first gear rod 801, second gear rod 802, third gear rod 803, fourth gear rod 804, first gear 805, second gear 806, third gear 807, fourth gear 808, fifth gear 809, sixth gear 810, gear plate 9, rotary bearing 10, rotary drive motor 11, and drive gear 12. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, an embodiment of the present application discloses a shock-absorbing differential wheel, including a base frame 1, a first differential wheel 2 and a second differential wheel 3 are respectively provided on both sides of the base frame 1, a first driving mechanism 4 for driving the first differential wheel 2 to rotate and a second driving mechanism 5 for driving the second differential wheel 3 to rotate are respectively provided on the base frame 1, and further includes a supporting plate 6, a rotating driving mechanism for driving the supporting plate 6 to perform rotational motion is provided at the bottom of the supporting plate 6, and further includes a shock-absorbing frame 7 arranged between the rotating driving mechanism and the base frame 1.

[0020] Specifically, the supporting plate 6 in this structure is used to support the body of the trolley. When the trolley is in the process of turning, the first drive mechanism 4 and the second drive mechanism 5 respectively drive the first differential wheel 2 and the second differential wheel 3 to rotate, so that the speeds of the first differential wheel 2 and the second differential wheel 3 are different, so that the trolley can turn smoothly. When the road is unstable, due to the setting of the shock absorber frame 7, the shock absorbing effect of the supporting plate 6 can be achieved, thereby ensuring the stability of the trolley during travel. At the same time, when it is necessary to drive the supporting plate 6 to turn, the rotating drive mechanism drives the supporting plate 6 to rotate, which can drive the trolley body installed on the supporting plate 6 to rotate.

[0021] In this structure, the first drive mechanism 4 and the second drive mechanism 5 are provided to realize differential control of the first differential wheel 2 and the second differential wheel 3, thereby achieving the stability of the trolley in turning. At the same time, in this structure, the shock-absorbing frame 7 is provided to achieve 360-degree elastic shock absorption of the load-bearing plate 6, thereby ensuring the stability of the trolley during travel.

[0022] In this embodiment, the shock absorber frame 7 includes an upper mounting plate 71 connected to the rotation drive mechanism and a lower mounting plate 72 connected to the base frame 1, and a plurality of elastic mechanisms are arranged between the upper mounting plate 71 and the lower mounting plate 72, and the corresponding two sides of the lower mounting plate 72 are respectively installed with a first bearing frame 73 and a second bearing frame, a third bearing frame 74 is provided on an adjacent side of the first bearing frame 73, and a fourth bearing frame is provided on an adjacent side of the second bearing frame, the third bearing frame 74 and the fourth bearing frame are arranged opposite to each other, and the third bearing frame 74 and the fourth bearing frame are respectively fixedly connected to the lower surface of the upper mounting plate 71, and further include a connecting frame 77, and the four side surfaces of the connecting frame 77 are respectively provided with connecting columns 76, and the connecting columns 76 on the four side surfaces are respectively rotatably connected to the first bearing frame 73, the second bearing frame, the third bearing frame 74 and the fourth bearing frame through bearings 75.

[0023] Specifically, in the above structure, when the first differential wheel 2 and the second differential wheel 3 travel on an uneven road, the multiple elastic mechanisms will contract to ensure the balance of the bearing plate 6.

[0024] The above-mentioned mechanism is provided with four bearing frames, which are respectively arranged on the upper mounting plate 71 and the lower mounting plate 72 in pairs, and the connecting frame 77 is rotatably connected to the four bearing frames, so that the upper mounting plate 71 can rotate relative to the lower mounting plate 72 along the X-axis and Y-axis directions at the same time. At the same time, in conjunction with the setting of multiple elastic mechanisms, the upper mounting plate 71 can achieve all-round movement relative to the lower mounting plate 72, thereby ensuring the shock absorption effect of the shock absorber frame 7.

[0025] In this embodiment, the elastic mechanisms are provided on both sides of the first bearing frame 73 , the second bearing frame, the third bearing frame 74 and the fourth bearing frame at equal distances therefrom, and the distances between each elastic mechanism and the center of the shock absorber frame 7 are equal.

[0026] It should be explained that in the above structure, elastic mechanisms are respectively provided on both sides of the first bearing frame 73, and the distance between the two elastic mechanisms and the first bearing frame 73 is equal, for example, the distance is A; elastic mechanisms are respectively provided on both sides of the second bearing frame, and the distance between the two elastic mechanisms and the second bearing frame is equal, also A; elastic mechanisms are respectively provided on both sides of the third bearing frame 74, and the distance between the two elastic mechanisms and the third bearing frame 74 is equal, also A; elastic mechanisms are respectively provided on both sides of the fourth bearing frame, and the distance between the two elastic mechanisms and the fourth bearing frame is equal, also A, and the distance between each elastic mechanism and the center point of the shock absorber frame 7 is also equal.

[0027] Specifically, the arrangement of the above structure can ensure that the forces on the upper mounting plate 71 and the lower mounting plate 72 are uniform, so that the shock-absorbing frame 7 can achieve a better shock-absorbing effect.

[0028] In this embodiment, the elastic structure includes an upper mounting column 781 fixedly connected to the upper mounting plate 71 and a lower mounting column 782 fixedly connected to the lower mounting plate 72, and a distance is set between the upper mounting column 781 and the lower mounting column 782. It also includes a spring 783 mounted on the upper mounting column 781 and the lower mounting column 782, and the upper end of the spring 783 abuts against the upper mounting plate 71, and the lower end of the spring 783 abuts against the lower mounting plate 72.

[0029] In this structure, by setting the upper mounting column 781, the lower mounting column 782 and the spring 783, the relative displacement of the upper mounting plate 71 and the lower mounting plate 72 can be achieved, thereby achieving the elastic deformation of the upper mounting plate 71 and the lower mounting plate 72, thereby ensuring the shock absorption effect of the shock absorption frame 7.

[0030] In this embodiment, the first driving mechanism 4 and the second driving mechanism 5 include a driving motor and a reducer connected to the output end of the motor;

[0031] The reducer includes a gear box 8, in which a first gear rod 801, a second gear rod 802, a third gear rod 803 and a fourth gear rod 804 are respectively provided. The first gear rod 801 is an input rod, and the fourth gear rod 804 is an output rod. The first gear rod 801 is provided with a first gear 805, the second gear rod 802 is provided with a second gear 806 meshing with the first gear 805, the second gear rod 802 is further provided with a third gear 807, the third gear rod 803 is provided with a fourth gear 808 meshing with the third gear 807, the third gear rod 803 is further provided with a fifth gear 809, and the fourth gear rod 804 is provided with a sixth gear 810 meshing with the fifth gear 809;

[0032] The first gear 805 , the second gear 806 , the fifth gear 809 and the sixth gear 810 are located in the same plane, and the third gear 807 and the fourth gear 808 are located in the same plane.

[0033] Specifically, the reducer in this structure is installed on the side of the base frame 1, and the output torque of the motor is increased through multiple gear transmissions. At the same time, when designing this structure, the first gear 805, the second gear 806, the fifth gear 809 and the sixth gear 810 are located in the same plane, and the third gear 807 and the fourth gear 808 are located in the same plane, thereby ensuring the output torque while reducing the volume of the gearbox 8.

[0034] In this embodiment, the rotary drive mechanism includes a gear plate 9 fixed on the shock absorber frame 7, the gear plate 9 is connected to the carrier plate 6 through a rotary bearing 10, a rotary drive motor 11 is provided on the carrier plate 6, and a drive gear 12 is provided on the driving end of the rotary drive motor 11, and the drive gear 12 is meshed with the gear plate 9.

[0035] Specifically, when the supporting plate 6 needs to be driven to rotate, the rotary drive motor 11 drives the drive gear 12 to rotate. Since the drive gear 12 is engaged with the gear plate 9, the supporting plate 6 rotates relative to the shock absorber frame 7, so that the trolley can realize the in-situ rotation function.

[0036] The above-mentioned rotary drive structure is ingeniously designed, and while ensuring the rotation function, it will not interfere with other mechanisms.

[0037] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Shock-absorbing differential wheel, characterized by: The invention comprises a chassis (1), a first differential wheel (2) and a second differential wheel (3) are respectively provided on both sides of the chassis (1), a first driving mechanism (4) for driving the first differential wheel (2) to rotate and a second driving mechanism (5) for driving the second differential wheel (3) to rotate are respectively provided on the chassis (1), a supporting plate (6), a rotation driving mechanism for driving the supporting plate (6) to rotate is provided at the bottom of the supporting plate (6), and a shock-absorbing frame (7) is provided between the rotation driving mechanism and the chassis (1).

2. The damping differential wheel according to claim 1, characterized in that: The shock-absorbing frame (7) includes an upper mounting plate (71) connected to the rotation drive mechanism and a lower mounting plate (72) connected to the bottom frame (1), a plurality of elastic mechanisms are provided between the upper mounting plate (71) and the lower mounting plate (72), a first bearing frame (73) and a second bearing frame are respectively installed on the corresponding two sides of the lower mounting plate (72), a third bearing frame (74) is provided on an adjacent side of the first bearing frame (73), and a fourth bearing frame is provided on an adjacent side of the second bearing frame, the third bearing frame (74) and the fourth bearing frame are arranged opposite to each other, the third bearing frame (74) and the fourth bearing frame are respectively fixedly connected to the lower surface of the upper mounting plate (71), and further includes a connecting frame (77), the four side surfaces of the connecting frame (77) are respectively provided with connecting columns (76), and the connecting columns (76) on the four side surfaces are respectively rotatably connected to the first bearing frame (73), the second bearing frame, the third bearing frame (74) and the fourth bearing frame through bearings (75).

3. The damping differential wheel according to claim 2, wherein: The first bearing frame (73), the second bearing frame, the third bearing frame (74) and the fourth bearing frame are all provided with elastic mechanisms at equal distances therefrom, and the distances between each elastic mechanism and the center of the shock-absorbing frame (7) are equal.

4. The damping differential wheel according to claim 2, wherein: The elastic mechanism comprises an upper mounting column (781) fixedly connected to the upper mounting plate (71) and a lower mounting column (782) fixedly connected to the lower mounting plate (72), wherein a spacing is provided between the upper mounting column (781) and the lower mounting column (782), and further comprises a spring (783) sleeved on the upper mounting column (781) and the lower mounting column (782), wherein the upper end of the spring (783) abuts against the upper mounting plate (71), and the lower end of the spring (783) abuts against the lower mounting plate (72).

5. The damping differential wheel according to claim 1, characterized in that: The first driving mechanism (4) and the second driving mechanism (5) include a driving motor and a reducer connected to the output end of the motor; The reducer comprises a gear box (8), wherein a first gear rod (801), a second gear rod (802), a third gear rod (803) and a fourth gear rod (804) are respectively provided in the gear box (8), wherein the first gear rod (801) is an input rod and the fourth gear rod (804) is an output rod, wherein the first gear rod (801) is provided with a first gear (805), the second gear rod (802) is provided with a second gear (806) meshing with the first gear (805), the second gear rod (802) is further provided with a third gear (807), the third gear rod (803) is provided with a fourth gear (808) meshing with the third gear (807), the third gear rod (803) is further provided with a fifth gear (809), and the fourth gear rod (804) is provided with a sixth gear (810) meshing with the fifth gear (809); The first gear (805), the second gear (806), the fifth gear (809) and the sixth gear (810) are located in the same plane, and the third gear (807) and the fourth gear (808) are located in the same plane.

6. The damping differential wheel according to claim 1, wherein: The rotary drive mechanism comprises a gear plate (9) fixed on a shock-absorbing frame (7); the gear plate (9) is connected to a carrier plate (6) via a rotary bearing (10); a rotary drive motor (11) is provided on the carrier plate (6); a drive gear (12) is provided on a driving end of the rotary drive motor (11); and the drive gear (12) is meshed with the gear plate (9).

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