CN218055344U

CN218055344U - Steering wheel and AGV dolly

Info

Publication number: CN218055344U
Application number: CN202220817529.2U
Authority: CN
Inventors: 宋波
Original assignee: Chongqing Linhao Industrial Technology Co ltd
Current assignee: Chongqing Linhao Industrial Technology Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-12-16
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a steering wheel for AGV dolly. The steering wheel for the AGV comprises a positioning seat, a steering mechanism and a traveling mechanism; the walking mechanism is connected to the positioning seat, and the steering mechanism is in transmission connection with the positioning seat so as to drive the positioning seat to rotate; the travelling mechanism comprises a coating piece, a roller, a first motor for driving the roller to rotate and two groups of transmission pieces, the roller is connected below the positioning seat, the two groups of transmission pieces are arranged above the roller and are arranged at intervals, so that the connecting line of the rotation center of the roller and the rotation centers of the two groups of transmission pieces is in an isosceles triangle shape; the transmission piece can rotate relative to the positioning seat; the cladding piece is respectively around locating the periphery of gyro wheel and two sets of driving medium to can accompany the removal synchronous rotation of gyro wheel. Therefore, the problem that the AGV trolley in the prior art is poor in climbing capability and narrow in application range is solved.

Description

Steering wheel and AGV dolly

Technical Field

The utility model relates to a material turnover technical field specifically relates to a steering wheel and AGV dolly.

Background

In the manufacturing industry and the transportation industry, materials or goods often need to be circulated, and in order to improve the goods flow efficiency, the appearance of an AGV trolley is born. AGV is an abbreviation for Automated Guided Vehicle, i.e., "Automated Guided Vehicle". An AGV is a transport vehicle equipped with an electromagnetic or optical automatic guide device, which can travel along a predetermined guide path and has safety protection and various transfer functions. The AGV dolly can improve goods flow efficiency effectively, can arrange the delivery more effectively, and then reduces the difficult problem of inside production processing, has practiced thrift the cost of labor.

However, when the current AGV is running, especially when encountering a landing, the gravity center is unstable and climbing is difficult, so that the requirements on the flatness and the smoothness of the ground are high. Therefore, it is difficult to exert its advantage in the case where, for example, an elevator is entered or exited or a road surface has small steps.

Therefore, a more reasonable technical scheme needs to be provided to solve the current technical problem in order to solve the problems that the AGV in the prior art has poor climbing capability and a narrow application range.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a helm and AGV dolly to solve among the prior art AGV dolly climbing ability poor and application scope constrictive problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a steering wheel for an AGV trolley, which comprises a positioning seat, a steering mechanism and a traveling mechanism; the walking mechanism is connected with the positioning seat, and the steering mechanism is in transmission connection with the positioning seat so as to drive the positioning seat to rotate;

the travelling mechanism comprises a coating piece, a roller, a first motor and two groups of transmission pieces, wherein the first motor is used for driving the roller to rotate, the roller is connected below the positioning seat, the two groups of transmission pieces are arranged above the roller and are arranged at intervals, so that the connecting line of the rotation center of the roller and the rotation centers of the two groups of transmission pieces is in an isosceles triangle shape; the transmission piece can rotate relative to the positioning seat;

the coating pieces are respectively wound on the peripheries of the roller and the two sets of transmission pieces so as to synchronously rotate along with the movement of the roller.

In a possible embodiment, the steering mechanism includes a second motor, a first gear, and a toothed disc, a rotating shaft of the second motor is coaxially connected to the first gear, the first gear is engaged with the toothed disc, and the toothed disc is connected to the positioning seat, so that when the second motor rotates, the toothed disc can drive the positioning seat to rotate.

In a possible embodiment, the steering mechanism further includes a second gear, the second gear is formed into a structure matched with the fluted disc, is connected to the positioning seat and is arranged at a distance relative to the first gear, and the second gear is meshed with the fluted disc.

In one possible embodiment, the covering is configured as a track or a rubber belt.

In a possible embodiment, the steering wheel further comprises a speed detection mechanism, an angle detection mechanism and a controller, wherein the speed detection mechanism is used for detecting the current running speed of the running mechanism, and the angle detection mechanism is used for detecting the current deflection angle of the running mechanism; the controller is respectively in communication connection with the speed detection mechanism and the angle detection mechanism so as to control the travelling mechanism and the steering mechanism to execute corresponding actions according to the received information.

In a possible embodiment, the speed detection mechanism comprises a speed encoder or a speed sensor and the angle detection mechanism comprises a rotary encoder or an angle sensor.

In one possible embodiment, the controller is configured as any one of a PLC logic controller, a central processing unit, a digital signal processor, an application specific integrated circuit, and a field programmable gate array.

The AGV trolley comprises a trolley body, wherein the steering wheels are arranged on the trolley body.

Through the technical scheme, when the first motor acts, power can be transmitted to the roller, so that the roller moves. Based on the triangle structure that driving medium and gyro wheel formed for the gyro wheel can raise whole running gear's effect position when removing, promptly, makes the wrapper first use the halfpace, and along with the removal of wrapper afterwards, whole steering wheel can steadily climb for the halfpace, makes the effect position remove the bottom to the rolling member gradually. Therefore, the climbing capability and the adaptability of the steering wheel to the driving environment are improved, and the steering wheel has better flexibility and adaptability.

Drawings

Fig. 1 is a schematic perspective view of a steering wheel for an AGV provided by the present invention at a viewing angle;

FIG. 2 is a schematic perspective view of a steering wheel for an AGV according to another aspect of the present invention;

FIG. 3 is a schematic perspective view of a steering wheel for an AGV according to another aspect of the present invention;

FIG. 4 is a schematic diagram of a top view of a steering wheel for an AGV according to the present invention;

fig. 5 is a schematic view of the steering wheel of the AGV according to the present invention.

Description of the reference numerals

1-a positioning seat, 2-a steering mechanism, 21-a second motor, 22-a first gear, 23-a fluted disc, 24-a second gear, 3-a travelling mechanism, 31-a cladding piece, 32-a first motor, 4-a speed detection mechanism and 5-an angle detection mechanism.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

According to a first aspect of the present disclosure, a steering wheel for an AGV is provided.

Referring to fig. 1 to 5, the steering wheel for the AGV includes a positioning seat 1, a steering mechanism 2 and a traveling mechanism 3; the traveling mechanism 3 is connected to the positioning seat 1, and the steering mechanism 2 is in transmission connection with the positioning seat 1 so as to drive the positioning seat 1 to rotate.

The travelling mechanism 3 comprises a coating part 31, a roller, a first motor 32 for driving the roller to rotate and two groups of transmission parts, wherein the roller is connected below the positioning seat 1, the two groups of transmission parts are arranged above the roller and are arranged at intervals, so that a connecting line of the rotation center of the roller and the rotation centers of the two groups of transmission parts is in an isosceles triangle shape; the transmission piece can rotate relative to the positioning seat 1. The wrapping members 31 are respectively wound around the peripheries of the roller and the two sets of transmission members so as to synchronously rotate along with the movement of the roller.

Through the above technical solution, when the first motor 32 is operated, the power can be transmitted to the roller (not shown in the figure), so that the roller moves. Based on the triangle structure that driving medium and gyro wheel formed for the gyro wheel can raise whole running gear 3's action position when removing, promptly, makes cladding piece 31 act the halfpace earlier, and along with the removal of cladding piece 31, whole helm can steadily climb for the halfpace afterwards, makes the action position remove to the bottom of rolling member gradually. Therefore, the climbing capability and the adaptability of the steering wheel to the driving environment are improved, and the steering wheel has better flexibility and adaptability.

For example, conventional rollers have an effective climbing radius of 110mm. And under the condition that other structures are unchanged and only the cladding piece 31 and the transmission piece are additionally arranged, the climbing radius can be increased to 230mm. Therefore, the climbing radius of the steering wheel is effectively improved, and the steering wheel has better practicability.

It should be noted that in the present application, the connection line between the rotation center of the roller and the rotation centers of the two sets of transmission members is in the shape of an isosceles triangle, which is not only beneficial to realizing reliable transmission of power, but also beneficial to improving the stability of the steering wheel in the driving process.

In one embodiment, the steering mechanism 2 includes a second motor 21, a first gear 22 and a gear plate 23, a rotating shaft of the second motor 21 is coaxially connected to the first gear 22, the first gear 22 is engaged with the gear plate 23, and the gear plate 23 is connected to the positioning socket 1, so that when the second motor 21 rotates, the gear plate 23 can drive the positioning socket 1 to rotate. Therefore, certain torque increasing and speed reducing effects can be achieved through the meshing of the first gear 22 and the toothed disc 23. Like this, can turn into slower rotational speed and great torsion with the faster rotational speed of second motor 21 and less torsion, act on positioning seat 1 steadily and reliably from this, realize the effective regulation to positioning seat 1 deflection angle to indirectly adjust the angle of gyro wheel, so that make the helm avoid the barrier, thereby remove more steadily.

Further, the steering mechanism further includes a second gear 24, the second gear 24 is formed to fit the gear plate 23, is connected to the positioning seat 1, and is spaced apart from the first gear 22, and the second gear 24 is engaged with the gear plate 23. Therefore, the stability of the fluted disc 23 in the meshing transmission process is improved, and the positioning seat 1 is indirectly driven to deflect stably.

In the present disclosure, referring to fig. 2, the first gear 22 and the second gear 24 may be configured as gears having the same number of teeth and module.

In the present disclosure, the second electric machine 21 is configured as an electric motor, whereby the adjustment of the yaw angle of the positioning socket 1 is achieved by the forward and reverse rotation of the electric motor. Of course, the second motor 21 may also be directly configured as a speed reducer, thereby further reducing the rotation speed and realizing the stepless adjustment of the deflection angle.

In one embodiment provided by the present disclosure, the wrapping member 31 is configured as a track, thereby being adapted to any suitable road surface, ensuring service performance and service life. Specifically, the present disclosure contemplates a tracked chain belt.

In another rubber transmission belt provided in the present disclosure, the friction force with the ground can be increased, so that the steering wheel can move smoothly, and the occurrence of a slip event is avoided.

In the present disclosure, the transmission member is configured as a transmission wheel (not shown), which is rotatably connected to the positioning base 1. Specifically, a clamping groove may be provided on an inner side wall of the covering member 31, so that each tooth of the transmission wheel can be clamped in the clamping groove, and the covering member 31 can transmit smoothly and reliably.

Of course, the first motor is configured as an electric motor, which is drivingly connected to the drive wheel.

In an embodiment provided by the present disclosure, the steering wheel further includes a speed detection mechanism 4, an angle detection mechanism 5 and a controller, the speed detection mechanism 4 is configured to detect a current running speed of the running mechanism 3, and the angle detection mechanism 5 is configured to detect a current deflection angle of the running mechanism 3; the controller is respectively in communication connection with the speed detection mechanism 4 and the angle detection mechanism 5 so as to control the travelling mechanism 3 and the steering mechanism 2 to execute corresponding actions according to the received information.

In this way, the driving speed and the driving angle of the driving mechanism can be detected in real time and then quickly transmitted to the controller, and the controller analyzes and processes the information according to the information to send instructions to (the first motor 32 of) the driving mechanism and the steering mechanism 2 so as to properly adjust the driving speed and the driving angle.

Wherein, speed detection mechanism 4 and angle detection mechanism 5 can be set up on positioning seat 1.

In one embodiment provided by the present disclosure, the speed detection mechanism 4 includes a speed encoder or a speed sensor, and the angle detection mechanism 5 includes a rotary encoder or an angle sensor. This allows the travel speed and the yaw angle of the travel mechanism to be effectively adjusted.

It should be noted that, in the present disclosure, the speed encoder, the speed sensor, the rotary encoder and the angle sensor are all in the prior art, and therefore, redundant description is not repeated herein.

In one embodiment provided by the present disclosure, the controller may be configured as any one of a PLC logic controller, a central processing unit, a digital signal processor, an application specific integrated circuit, and a field programmable gate array.

Specifically, in the present disclosure, the controller is configured as a central processor. While in other embodiments, the controller may also be configured as one of a digital signal processor, an application specific integrated circuit, and a field programmable gate array. Further, the controller may also be a network processor, other programmable logic device, discrete gate or transistor logic device, discrete hardware component. In this regard, those skilled in the art can flexibly configure the device according to the actual application environment.

According to the second aspect of the present disclosure, an AGV trolley is further provided, which includes a trolley body, wherein the trolley body is provided with a steering wheel of the first aspect.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

Claims

1. The steering wheel for the AGV trolley is characterized by comprising a positioning seat (1), a steering mechanism (2) and a traveling mechanism (3); the traveling mechanism (3) is connected to the positioning seat (1), and the steering mechanism (2) is in transmission connection with the positioning seat (1) so as to drive the positioning seat (1) to rotate;

the travelling mechanism (3) comprises a coating piece (31), a roller, a first motor (32) for driving the roller to rotate and two groups of transmission pieces, the roller is connected below the positioning seat (1), the two groups of transmission pieces are arranged above the roller and are arranged at intervals, so that a connecting line of the rotation center of the roller and the rotation centers of the two groups of transmission pieces is in an isosceles triangle shape; the transmission piece can rotate relative to the positioning seat (1);

the wrapping pieces (31) are respectively wound on the peripheries of the roller and the two sets of transmission pieces so as to synchronously rotate along with the movement of the roller.

2. Steering wheel for AGV carriages according to claim 1, characterized in that the steering mechanism (2) comprises a second motor (21), a first gear (22) and a toothed disc (23), the shaft of the second motor (21) being coaxially connected to the first gear (22), the first gear (22) being in mesh with the toothed disc (23), the toothed disc (23) being connected to the positioning seat (1) so that when the second motor (21) rotates, the toothed disc (23) can drive the positioning seat (1) to rotate.

3. Steering wheel for AGV carriages according to claim 2, characterised in that the steering mechanism also comprises a second gear wheel (24), the second gear wheel (24) being formed in a structure adapted to the toothed disc (23) and being connected to the positioning seat (1) and being spaced apart with respect to the first gear wheel (22), the second gear wheel (24) being engaged with the toothed disc (23).

4. Rudder wheel for AGV according to claim 1, characterised in that the cladding (31) is configured as a track or a rubber belt.

5. Steering wheel for an AGV trolley according to claim 1, characterised in that it further comprises speed detection means (4), angle detection means (5) and a controller, the speed detection means (4) being adapted to detect the current travelling speed of the travelling means (3), the angle detection means (5) being adapted to detect the current deflection angle of the travelling means (3); the controller is respectively in communication connection with the speed detection mechanism (4) and the angle detection mechanism (5) so as to control the travelling mechanism (3) and the steering mechanism (2) to execute corresponding actions according to received information.

6. Rudder wheel for AGV according to claim 5, characterized in that the speed detection means (4) comprise a speed encoder or sensor and the angle detection means (5) comprise a rotary encoder or sensor.

7. Rudder wheel for AGV carts as claimed in claim 5, wherein the controller is configured as any of a PLC logic controller, a central processor, a digital signal processor, an application specific integrated circuit and a field programmable gate array.

8. An AGV comprising a body, wherein the body is provided with a steering wheel according to any one of claims 1 to 7.