Single-motor double-wheel high-bearing-capacity steering wheel

Abstract

The utility model relates to the technical field of bearing steering wheels, in particular to a single-motor double-wheel high-bearing steering wheel which comprises a driving wheel, a driven wheel is installed on one side of the driving wheel in parallel, a walking motor is arranged on one side of the driving wheel and one side of the driven wheel, and the driving wheel and the driven wheel are connected with the outer wall of the walking motor in a sleeved mode. The outer walls of the driving wheel and the driven wheel are connected with bearings in a sleeving mode and located on the periphery of the outer wall of the walking motor, a reduction gearbox is fixedly installed on the inner wall, close to the driving wheel, of the walking motor and located on one side of the driving wheel, a wheel support is fixedly installed at the top end of the walking motor, and the inner wall of the wheel support is rotationally connected with a hinge assembly. The outer wall of the hinge assembly is fixedly sleeved with a steering mounting plate, and the steering mounting plate is located at the top end of the wheel support. The driving wheel and the driven wheel are matched with each other, so that the torsion of the steering wheel during walking or steering can be reduced, a motor with small torque can be conveniently selected, and the supporting capacity of the wheel bracket can be conveniently improved by arranging the two wheels.

Description

Technical Field

[0001] The utility model relates to the technical field of load-bearing steering wheels, in particular to a high-load-bearing steering wheel with a single motor and two wheels. Background Art

[0002] AGV is an "Automated Guided Vehicle," commonly known as an "Unmanned Transport Vehicle." It is a heavy-duty transport vehicle equipped with an electromagnetic or optical automatic guidance device that can travel along a pre-set guide path and has safety protection and various transfer functions. In industrial transportation, AGVs are widely used because they rely on batteries as their power source and do not require a driver. Especially in flexible manufacturing systems and automated warehousing systems, AGVs have become an effective tool for automatic logistics transportation.

[0003] The bottom of the AGV is generally equipped with a steering wheel to facilitate the AGV to move in multiple directions. However, the wheel bracket on the existing steering wheel is a 7-shaped structure. The wheel bracket cannot withstand large bending moments and is prone to breakage. In addition, wheel steering requires a large torque, which requires the steering wheel to be equipped with a large motor with high power. This leads to excessively high costs for the steering wheel and reduces the ground clearance of the motor, making it impossible for the AGV to travel on sloped roads.

[0004] Therefore, it is necessary to propose a high-load-bearing steering wheel with a single motor and two wheels to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-load-bearing steering wheel with a single motor and two wheels. By cooperating with the driving wheel and the driven wheel, the torque of the steering wheel during walking or turning can be reduced, thereby facilitating the selection of a motor with a small torque. By setting up two wheels, the supporting capacity of the wheel bracket can be improved to solve the problem in the prior art that the wheel bracket on the steering wheel is a 7-shaped structure, the wheel bracket cannot withstand a large bending moment and is prone to breakage, and the steering of the wheel requires a large torque, thereby requiring the steering wheel to be equipped with a large motor with a large power, which leads to excessively high cost of the steering wheel and reduces the ground clearance of the motor, making it impossible for the AGV car to travel on a sloping road.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-load-bearing steering wheel with a single motor and two wheels, including a driving wheel, a driven wheel is installed parallel to one side of the driving wheel, a traveling motor is provided on one side of the driving wheel and the driven wheel, and the driving wheel, the driven wheel and the outer wall of the traveling motor are sleeved.

[0007] Preferably, the outer walls of the driving wheel and the driven wheel are sleeved with bearings and are located around the outer wall of the travel motor. A reduction gearbox is installed and fixed on the inner wall of the travel motor close to the driving wheel and is located on one side of the driving wheel. A wheel bracket is installed and fixed on the top of the travel motor.

[0008] Preferably, the inner wall of the wheel bracket is rotatably connected to a hinge assembly, the outer wall of the hinge assembly is sleeved and fixed with a steering mounting plate, and is located at the top of the wheel bracket, a steering motor is installed and fixed at the bottom end of one side of the steering mounting plate, the top end of the steering motor is rotatably connected to a steering gear, and passes through the top end of the steering mounting plate, the top end of the steering mounting plate is rotatably connected to a slewing bearing, and is located above the center of the steering mounting plate, and is meshed with the steering gear.

[0009] Preferably, the driving wheel and the driven wheel are rotatably connected to both sides of the outer wall of the travel motor through bearings, and a mounting groove matching the reduction gearbox is provided inside the travel motor.

[0010] Preferably, the shape of the wheel bracket is changed from a 7-shaped structure to a vertical plate structure, and has a certain thickness and good load-bearing performance. The surface of the wheel bracket is provided with a connection groove that matches the hinge assembly.

[0011] Preferably, the steering gear and the slewing bearing are engaged with each other via tooth grooves, and the inner shaft of the slewing bearing is connected and installed with the steering mounting plate via bolts.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] 1. By providing a driving wheel and a driven wheel, it is convenient for both wheels to touch the ground at the same time, and the pressure is transmitted to the bearing. The bearing gradually transmits the pressure to the housing of the travel motor. When the pressure is transmitted to the wheel bracket, the pressure is dispersed through the housing of the travel motor, so that the wheel bracket can bear less pressure. At the same time, the wheel bracket is shaped as a vertical plate and has a certain thickness, which makes it easy to improve the load-bearing capacity of the wheel bracket itself and facilitate the processing of the wheel bracket. The pressure is then transmitted from the wheel bracket to the steering mounting plate through the hinge assembly, and finally to the AGV trolley, which can improve the load-bearing capacity of the wheel bracket and facilitate the processing of the wheel bracket.

[0014] 2. By starting the steering motor, the steering motor drives the steering gear on the steering mounting plate to rotate, so that the steering gear drives the slewing bearing to rotate. The inner shaft of the slewing bearing is connected and installed with the steering mounting plate, so that the slewing bearing rotates and drives the steering mounting plate to rotate, thereby making the steering mounting plate drive the travel motor through the hinge assembly and the wheel bracket. The driving wheel and the driven wheel sleeved on the outer wall of the travel motor rotate, so that the two wheels rotate on the ground through rolling friction, thereby reducing the torque required for steering, making it easier for the steering wheel to use a motor with a smaller torque to meet the steering of the steering wheel, thereby increasing the ground clearance of the motor, allowing the AGV car to travel on a road with a certain slope, and improving the car's obstacle crossing ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0018] Figure 3 This is a side structural diagram of the present utility model;

[0019] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0020] Description of reference numerals:

[0021] 1. Driving wheel; 2. Driven wheel; 3. Bearing; 4. Reducer; 5. Travel motor; 6. Wheel bracket; 7. Articulated assembly; 8. Steering mounting plate; 9. Steering motor; 10. Steering gear; 11. Slewing bearing. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] The utility model provides Figure 1-4 The single-motor, dual-wheel, high-load steering wheel shown includes a driving wheel 1, a driven wheel 2 is installed parallel to one side of the driving wheel 1, a traveling motor 5 is provided on one side of the driving wheel 1 and the driven wheel 2, and the driving wheel 1, the driven wheel 2 and the outer wall of the traveling motor 5 are sleeved, and the driving wheel 1 and the driven wheel 2 cooperate with each other to reduce the torque of the steering wheel when traveling or turning, thereby facilitating the selection of a small-torque motor. By setting up two wheels, the supporting capacity of the wheel bracket 6 is improved.

[0024] Refer to the instruction manual Figure 1-4 The outer walls of the driving wheel 1 and the driven wheel 2 are sleeved with bearings 3, and are located around the outer wall of the travel motor 5. The travel motor 5 is fixed with a reduction gearbox 4 near the inner wall of the driving wheel 1, and is located on one side of the driving wheel 1. The top of the travel motor 5 is fixed with a wheel bracket 6. The travel motor 5 and the reduction gearbox 4 cooperate with each other to facilitate the travel motor 5 to drive the driving wheel 1 and the driven wheel 2 to rotate stably.

[0025] Refer to the instruction manual Figure 1-4The inner wall of the wheel bracket 6 is rotatably connected with a hinge assembly 7, and the outer wall of the hinge assembly 7 is sleeved and fixed with a steering mounting plate 8, and is located at the top of the wheel bracket 6. A steering motor 9 is installed and fixed at the bottom end of one side of the steering mounting plate 8. The top of the steering motor 9 is rotatably connected with a steering gear 10, and passes through the top of the steering mounting plate 8. The top of the steering mounting plate 8 is rotatably connected with a slewing bearing 11, and is located above the center of the steering mounting plate 8, and is meshed with the steering gear 10. The slewing bearing 11 is meshed with the steering gear 10, which facilitates the rotation of the slewing bearing 11 on the steering mounting plate 8.

[0026] Refer to the instruction manual Figure 1-4 The driving wheel 1 and the driven wheel 2 are rotatably connected to the outer wall of the travel motor 5 through bearings 3. The interior of the travel motor 5 is provided with a mounting groove that matches the reduction gearbox 4. The driving wheel 1 and the driven wheel 2 are rotatably connected to the outer wall of the travel motor 5 through bearings 3, so that the travel motor 5 can rotate and drive the driving wheel 1 and the driven wheel 2 to rotate through the bearings 3.

[0027] Refer to the instruction manual Figure 1-4 The shape of the wheel bracket 6 is changed from a 7-shaped structure to a vertical plate structure, and has a certain thickness, with good load-bearing performance. The surface of the wheel bracket 6 is provided with a connecting groove that matches the hinge assembly 7. By changing the shape of the wheel bracket 6 from a 7-shaped structure to a vertical plate structure, and having a certain thickness, it is convenient to improve the load-bearing capacity of the wheel bracket 6 and facilitate the processing of the wheel bracket 6.

[0028] Refer to the instruction manual Figure 1-4 The steering gear 10 and the slewing bearing 11 are engaged with each other through the tooth grooves. The inner shaft of the slewing bearing 11 is connected and installed with the steering mounting plate 8 by bolts. The steering gear 10 and the slewing bearing 11 are engaged with each other, so that the steering motor 9 drives the steering gear 10 to rotate and drives the slewing bearing 11 to rotate.

[0029] This utility works as follows:

[0030] Refer to the instruction manual Figure 1-4 By providing a driving wheel 1 and a driven wheel 2, it is convenient for both wheels to touch the ground at the same time, and transmit the pressure to the bearing 3. The bearing 3 gradually transmits the pressure to the housing of the travel motor 5, so that when the pressure is transmitted to the wheel bracket 6, the pressure of the housing of the travel motor 5 is dispersed, so that the wheel bracket 6 can be subjected to less pressure. At the same time, the wheel bracket 6 is shaped as a vertical plate and has a certain thickness, which is convenient for improving the load-bearing capacity of the wheel bracket 6 itself and facilitating the processing of the wheel bracket 6. The pressure is then transmitted from the wheel bracket 6 to the steering mounting plate 8 through the hinge assembly 7, and finally transmitted to the AGV trolley, which can improve the load-bearing capacity of the wheel bracket 6 and facilitate the processing of the wheel bracket 6.

[0031] Refer to the instruction manual Figure 1-4By starting the steering motor 9, the steering motor 9 drives the steering gear 10 on the steering mounting plate 8 to rotate, so that the steering gear 10 drives the slewing bearing 11 to rotate, and the inner shaft of the slewing bearing 11 is connected and installed with the steering mounting plate 8, so that the slewing bearing 11 rotates and drives the steering mounting plate 8 to rotate, thereby making the steering mounting plate 8 drive the travel motor 5 to rotate through the hinge assembly 7 and the wheel bracket 6, and the driving wheel 1 and the driven wheel 2 sleeved on the outer wall of the travel motor 5 rotate, so that the two wheels rotate on the ground by rolling friction, thereby reducing the torque required for steering, making it easier for the steering wheel to use a motor with a smaller torque to meet the steering of the steering wheel, which can increase the ground clearance of the motor, so that the AGV can travel on a road with a certain slope, and improve the obstacle crossing ability of the vehicle.

[0032] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-load-bearing steering wheel with a single motor and two wheels, comprising a driving wheel (1), characterized in that: A driven wheel (2) is mounted in parallel on one side of the driving wheel (1), a travel motor (5) is provided on one side of the driving wheel (1) and the driven wheel (2), and the driving wheel (1), the driven wheel (2) and the travel motor (5) are sleeved on their outer walls.

2. The high-load-bearing steering wheel with a single motor and two wheels according to claim 1, characterized in that: The outer walls of the driving wheel (1) and the driven wheel (2) are sleeve-connected with bearings (3) and are located around the outer wall of the travel motor (5). A reduction box (4) is fixedly mounted on the inner wall of the travel motor (5) close to the driving wheel (1) and is located on one side of the driving wheel (1). A wheel bracket (6) is fixedly mounted on the top of the travel motor (5).

3. The high-load-bearing steering wheel with a single motor and two wheels according to claim 2, characterized in that: The inner wall of the wheel bracket (6) is rotatably connected to a hinge assembly (7), the outer wall of the hinge assembly (7) is sleeved and fixed with a steering mounting plate (8) and is located at the top end of the wheel bracket (6), a steering motor (9) is fixedly mounted at the bottom end of one side of the steering mounting plate (8), the top end of the steering motor (9) is rotatably connected to a steering gear (10) and passes through the top end of the steering mounting plate (8), the top end of the steering mounting plate (8) is rotatably connected to a slewing bearing (11), is located above the center of the steering mounting plate (8), and is meshed with the steering gear (10).

4. The high-load-bearing steering wheel with a single motor and two wheels according to claim 2, characterized in that: The driving wheel (1) and the driven wheel (2) are rotatably connected to both sides of the outer wall of the travel motor (5) through bearings (3); and a mounting groove matching the reduction box (4) is provided inside the travel motor (5).

5. The high-load-bearing steering wheel with a single motor and two wheels according to claim 3, characterized in that: The shape of the wheel bracket (6) is changed from a 7-shaped structure to a vertical plate structure, and has a certain thickness and good load-bearing performance. A connection groove matching the hinge assembly (7) is provided on the surface of the wheel bracket (6).

6. The high-load-bearing steering wheel with a single motor and two wheels according to claim 3, characterized in that: The steering gear (10) and the slewing bearing (11) are meshed with each other via tooth grooves, and the inner shaft of the slewing bearing (11) is connected and mounted to the steering mounting plate (8) via bolts.

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