Single-wheel vertical steering wheel

Abstract

The utility model relates to the technical field of AGV steering wheels, and discloses a single-wheel vertical steering wheel which comprises an installation disc, an outer gear ring, a single-wheel box body, an installation shell and a driving mechanism, the outer gear ring is rotatably inserted into the installation disc, the upper end of the single-wheel box body is fixedly arranged on the bottom face of the outer gear ring, a driving wheel is arranged at the lower end of the single-wheel box body, and the driving mechanism is arranged in the single-wheel box body. The installation shell covers the installation disc and wraps the outer gear ring, a sealing cavity is formed among the installation shell, the installation disc and the single-wheel box body, a transmission motor and a steering motor are vertically arranged on the top of the installation shell, the transmission motor is connected with the driving mechanism through a gear transmission mechanism, an output shaft of the steering motor is connected with a steering gear, and the steering gear is connected with the installation shell. The steering gear is meshed with the outer gear ring, and the gear transmission mechanism and the steering gear are both arranged in the sealing cavity. The steering gear and the transmission gear are prevented from being exposed, sufficient lubrication of the gear is guaranteed, the situation that grease overflows and drips on the road surface to cause walking slipping is avoided, and 360-degree unlimited steering is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV steering wheels, in particular to a single-wheel vertical steering wheel. Background Art

[0002] Currently, single-wheel vertical steering wheels are a common design for AGV steering wheels. However, existing single-wheel vertical steering wheels have exposed steering gears, which not only lacks adequate lubrication, affecting transmission, but also easily drips grease onto the ground, causing the drive unit to slip and contaminating the floor, making them unsuitable for use in the food and medical industries. Furthermore, existing single-wheel vertical steering wheels cannot achieve 360° unrestricted steering. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a single-wheel vertical steering wheel, which avoids the steering and transmission gears from being exposed, ensures sufficient lubrication of the gears, prevents grease from overflowing and dripping on the road surface causing slipping when walking, and realizes 360° unlimited steering.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A single-wheel vertical steering wheel comprises a mounting plate, an outer gear ring, a single-wheel housing, a mounting shell and a driving mechanism, wherein the outer gear ring is rotatably inserted into the mounting plate, the upper end of the single-wheel housing is fixedly arranged on the bottom surface of the outer gear ring, the lower end of the single-wheel housing is provided with a driving wheel, the driving mechanism is arranged inside the single-wheel housing and connected to the driving wheel, the mounting shell cover is arranged on the mounting plate and covers the outer gear ring therein, a sealed cavity is formed between the mounting shell, the mounting plate and the single-wheel housing, a transmission motor and a steering motor are vertically provided on the top of the mounting shell, the transmission motor is connected to the driving mechanism through a gear transmission mechanism, the output shaft of the steering motor is connected to a steering gear, the steering gear is meshed with the outer gear ring, and the gear transmission mechanism and the steering gear are both arranged in the sealed cavity.

[0006] Preferably, the gear transmission mechanism includes a passive gear rotatably plugged into the single-wheel housing, a transmission shaft is plugged into the passive gear, the lower end of the transmission shaft is connected to a first driving gear, and the first driving gear is connected to the driving mechanism;

[0007] A driving gear is provided on the output shaft of the transmission motor, and the driving gear is meshed with the driven gear.

[0008] Preferably, the driving mechanism includes a driving shaft, the upper end of the driving shaft is provided with a second driving gear meshing with the first driving gear, the lower end of the driving shaft is provided with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is connected to the driving wheel.

[0009] Preferably, the single-wheel box includes a connecting portion and a main body, the connecting portion is connected to the outer gear ring, and the lower end of the main body is connected to the driving wheel.

[0010] Preferably, a mounting hole is provided in the middle of the connecting portion, a bearing is provided in the mounting hole, and the drive shaft is inserted into the inner ring of the bearing.

[0011] Preferably, the output end of the steering motor is connected to a reducer, and the steering gear is installed at the output end of the reducer.

[0012] Preferably, the mounting shell is provided with an oil plug communicating with the sealing cavity.

[0013] Preferably, the driving wheel includes a hub and a rim, and the rim is arranged on the outside of the hub.

[0014] Preferably, an encoder for detecting the rotation angle is provided on the output shaft of the steering motor or the steering gear.

[0015] Compared to the prior art, the single-wheel vertical steering wheel of the present invention has the following advantages: by placing the mounting shell cover on the mounting plate and enclosing the outer ring gear therein, a sealed chamber is formed between the mounting shell, the mounting plate, and the single-wheel housing. The gear transmission mechanism and steering gear are both located within the sealed chamber, thereby preventing the steering and transmission gears from being exposed, ensuring adequate lubrication of the gears and preventing grease from spilling onto the road surface and causing slipping. Furthermore, the steering of the driving wheel is achieved by meshing the steering gear with the outer ring gear. Since the outer ring gear can achieve 360° rotation, 360° unlimited steering of the steering wheel is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the single-wheel vertical steering wheel of the present utility model.

[0017] Figure 2 This is a structural schematic diagram of the single-wheel vertical steering wheel of the utility model without the mounting shell.

[0018] Figure 3 It is a cross-sectional view of the single-wheel vertical steering wheel of the present invention.

[0019] Figure 4 This is a connection diagram of the drive mechanism and the drive wheel of the single-wheel vertical steering wheel of the present invention.

[0020] Figure 5 This is a schematic structural diagram of the driving mechanism of the single-wheel vertical steering wheel of the present invention.

[0021] Among them: 1-mounting plate, 2-outer gear ring, 3-single wheel housing, 31-connecting part, 32-main body, 4-driving mechanism, 41-first bevel gear, 42-second bevel gear, 43-second driving gear, 5-driving wheel, 6-mounting shell, 7-transmission motor, 8-steering motor, 9-gear transmission mechanism, 91-passive gear, 92-transmission shaft, 93-driving gear, 94-first driving gear, 10-steering gear, 20-oil plug. DETAILED DESCRIPTION

[0022] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] like Figure 1-2 As shown, a single-wheel vertical steering wheel according to a preferred embodiment of the present invention includes a mounting plate 1, an outer gear ring 2, a single-wheel housing 3, a mounting shell 6 and a drive mechanism 4. The bottom surface of the mounting plate 1 is connected to the AGV body. The outer gear ring 2 is rotatably plugged into the mounting plate 1. The mounting plate 1 is annular, and the outer gear ring 2 can rotate around the center line of the mounting plate 1. The upper end of the single-wheel housing 3 is fixed to the bottom surface of the outer gear ring 2. The lower end of the single-wheel housing is provided with a driving wheel. The driving mechanism is provided inside the single-wheel housing and is connected to the driving wheel. The driving wheel 5 includes a hub and a rim. The rim is provided on the outside of the hub.

[0024] The mounting shell 6 is covered on the mounting plate 1 and covers the outer gear ring 2 therein. A sealed cavity is formed between the mounting shell 6, the mounting plate 1 and the single-wheel box 3. A transmission motor 7 and a steering motor 8 are vertically provided on the top of the mounting shell 6. The transmission motor 7 is connected to the drive mechanism 4 through a gear transmission mechanism 9. The output shaft of the steering motor 8 is connected to a steering gear 10. The steering gear 10 is engaged with the outer gear ring 2. The gear transmission mechanism 9 and the steering gear 10 are both arranged in the sealed cavity.

[0025] The single-wheel vertical steering wheel based on the above-mentioned technical features is constructed by placing a mounting shell 6 on a mounting plate 1, enclosing the outer ring gear 2 therein. A sealed chamber is formed between the mounting shell 6, the mounting plate 1, and the single-wheel housing 3. The gear transmission mechanism 9 and the steering gear 10 are both located within the sealed chamber. This prevents the steering and transmission gears from being exposed, ensuring adequate lubrication of the gears and preventing grease from spilling onto the road and causing slipping. Simultaneously, the steering of the drive wheel 5 is achieved by meshing the steering gear 10 with the outer ring gear 2. Since the outer ring gear 2 can achieve 360° rotation, the steering wheel achieves 360° unlimited steering.

[0026] like Figure 3 、 5 As shown, in this embodiment, the gear transmission mechanism 9 includes a passive gear 91 rotatably connected to the single-wheel housing 3. A transmission shaft 92 is connected to the passive gear 91. The lower end of the transmission shaft 92 is connected to a first drive gear 94, which is connected to the drive mechanism 4. The output shaft of the transmission motor 7 is provided with a driving gear 93, which meshes with the passive gear 91. The drive mechanism 4 includes a drive shaft, the upper end of which is provided with a second drive gear 43 meshing with the first drive gear 94, and the lower end of the drive shaft is provided with a first bevel gear 41, which meshes with a second bevel gear 42, which is connected to the drive wheel 5. The transmission motor 7 rotates, driving the driving gear 93 to drive the driven gear 91, and the driven gear 91 drives the transmission shaft 92. The transmission shaft 92 drives the second driving gear 43, and the second driving gear 43 drives the driving shaft. The driving shaft drives the first bevel gear 41 to drive the second bevel gear 42. The second bevel gear 42 is connected to the driving wheel 5 via a rotating shaft to drive the driving wheel 5 to rotate.

[0027] like Figure 4 As shown, the single-wheel housing 3 includes a connecting portion 31 and a main portion 32. The connecting portion 31 is connected to the outer gear ring 2, and the lower end of the main portion 32 is connected to the drive wheel 5. A mounting hole is provided in the middle of the connecting portion 31, which contains a bearing. The drive shaft is inserted into the inner ring of the bearing, thereby enabling the driven gear 91 to drive the transmission shaft 92 to rotate.

[0028] In this embodiment, the output end of the steering motor 8 is connected to a reducer, and the steering gear 10 is mounted on the output end of the reducer to ensure the output speed of the steering motor 8. At the same time, to facilitate detection of the rotation angle, an encoder for detecting the rotation angle is provided on the output shaft of the steering motor 8 or on the steering gear 10.

[0029] In this embodiment, an oil plug 20 communicating with the sealing cavity is provided on the mounting shell 6 to facilitate adding lubricating oil into the sealing cavity. The oil plug 20 is preferably a hexagonal oil plug.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A single-wheel vertical steering wheel, characterized by: The gear train is constructed by rotating the wheels in a direction of rotating the wheels, and the rotation of the steering wheel is controlled by the control wheel to move the steering column upwards to move the vehicle body toward the control wheel. The gear train is constructed by rotating the wheels in a direction of rotating the wheels, and the rotation of the steering wheel is controlled by the control wheel.

2. The single-wheel vertical steering wheel according to claim 1, characterized in that: The gear transmission mechanism includes a passive gear rotatably plugged into the single-wheel housing, a transmission shaft plugged into the passive gear, a lower end of the transmission shaft connected to a first driving gear, and the first driving gear connected to the driving mechanism; A driving gear is provided on the output shaft of the transmission motor, and the driving gear is meshed with the driven gear.

3. The single-wheel vertical steering wheel according to claim 2, characterized in that: The driving mechanism includes a driving shaft, the upper end of the driving shaft is provided with a second driving gear meshing with the first driving gear, the lower end of the driving shaft is provided with a first bevel gear, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is connected to the driving wheel.

4. The single-wheel vertical steering wheel according to claim 3, characterized in that: The single-wheel box includes a connecting portion and a main body, the connecting portion is connected to the outer gear ring, and the lower end of the main body is connected to the driving wheel.

5. The single-wheel vertical steering wheel according to claim 4, characterized in that: A mounting hole is provided in the middle of the connecting portion, a bearing is provided in the mounting hole, and the driving shaft is plugged into the inner ring of the bearing.

6. The single-wheel vertical steering wheel according to any one of claims 1 to 5, characterized in that: The output end of the steering motor is connected to a reducer, and the steering gear is installed at the output end of the reducer.

7. The single-wheel vertical steering wheel according to any one of claims 1 to 5, characterized in that: The mounting shell is provided with an oil plug which is in communication with the sealing cavity.

8. The single-wheel vertical steering wheel according to any one of claims 1 to 5, characterized in that: The driving wheel includes a hub and a rim, and the rim is arranged on the outer side of the hub.

9. The single-wheel vertical steering wheel according to any one of claims 1 to 5, characterized in that: An encoder for detecting a rotation angle is provided on the output shaft of the steering motor or the steering gear.

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