CN212556587U - Deviation correcting device for AGV trolley - Google Patents

Abstract

The utility model relates to an intelligent robot field specifically discloses a deviation correcting device for AGV dolly, including link, support, mounting panel, connecting axle and hoist mechanism, the support both sides are equipped with the drive division of drive wheel and drive wheel, the connecting axle pass the link and with link sliding connection, connecting axle lower extreme and leg joint, connecting axle upper end and the cam rigid coupling of rectifying. Adopt the device can rectify when the drive wheel to the AGV dolly lifts, prevent that the drive wheel from damaging, prolong its life.

Description

Deviation correcting device for AGV trolley

Technical Field

The utility model relates to an intelligent robot field, concretely relates to deviation correcting device for AGV dolly.

Background

The AGV is a transport vehicle equipped with an electromagnetic or optical automatic navigation device, capable of traveling along a predetermined navigation route, having safety protection and various transfer functions, and does not require a carrier of a driver in industrial use, and uses a rechargeable battery as a power source. The AGV can generally control its traveling path and behavior through a computer, or establish its traveling path by using an electromagnetic rail, which is attached to the floor, and the automated guided vehicle moves and behaves according to the information brought by the electromagnetic rail. Although the AGV trolley can save labor cost, the existing driving device can only drive the trolley to move along the rail, when the AGV trolley needs maintenance, the AGV trolley is difficult to push to a corresponding position for maintenance, and a driving wheel can be lifted upwards at present, but the driving wheel is easy to deviate in the lifting process, so that the service life is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a deviation correcting device for AGV dolly adopts the device can rectify when the drive wheel to the AGV dolly lifts, prevents that the drive wheel from damaging, prolongs its life.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a deviation correcting device for AGV dolly, includes link, support, mounting panel, connecting axle and hoist mechanism, the support both sides are equipped with the drive division of drive wheel and drive wheel, the connecting axle pass the link and with link sliding connection, connecting axle lower extreme and leg joint, connecting axle upper end and the cam rigid coupling of rectifying.

Further, still include the axle sleeve, the axle sleeve is established in the connecting axle outside and with link sliding fit.

Furthermore, the lifting mechanism comprises a motor and a cam, a cam bearing is arranged at the eccentric position of the cam, and the cam bearing is abutted to the deviation rectifying cam.

Furthermore, the device also comprises a spring, and two ends of the spring are respectively connected with the bracket and the mounting plate.

Further, the drive part comprises a brushless motor, the brushless motor is fixedly connected with the support, and further the drive part further comprises a housing, and the housing is arranged on the outer side of the brushless motor and fixedly connected with the support.

The principle and the beneficial effects of the technical scheme are as follows: when the lifting mechanism is used, the lifting mechanism can drive the support to move upwards through the connecting shaft, namely, the driving wheel and the driving part are driven to move upwards, and the driving wheel is separated from the ground. When the AGV car needs to be driven, the lifting mechanism operates reversely, so that the driving wheel is directly driven to descend until the driving wheel is contacted with the ground. In the whole process, the deviation rectifying cam and the shaft sleeve can play a role in rectifying deviation, and the service life of the driving wheel is prevented from being influenced by radial deviation in the ascending or descending process.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a housing 3, a brushless motor 4, an end cover 5, a bearing support ring 6, a bearing 7, a bearing upper seat 8, a driving wheel 9, a main shaft 10, a spring 11, a mounting plate 12, a motor 13, a flat key 17, a cam 19, a cam bearing 20, a nut 23, a deviation rectification cam 24, a shaft sleeve 25, a bearing lower seat 28 and a connecting shaft 30.

The embodiment is basically as shown in the attached figure 1: a deviation correcting device for an AGV robot comprises two driving wheels 9, a mounting plate 12, a connecting frame, a bracket and a driving part; the mounting plate 12 is fixedly connected with the connecting frame in a welding mode, mounting holes are formed in the mounting plate 12, and bolts penetrate through the mounting holes and fixedly connect the mounting plate 12 with the AGV robot to achieve connection of the device and the AGV robot. The connecting frame is in sliding fit with the bracket, the bracket is fixedly connected with the driving part, and the connecting mode is bolt or screw connection. Two drive wheels 9 are respectively located the support both sides and with support normal running fit, and two drive wheels 9 are rotated by the drive division drive. Specifically, the driving portion in this embodiment is a brushless motor 4, and the embodiment further includes a driving shaft, and the brushless motor 4 is fixedly connected to the bracket through a bolt. The output shaft of brushless motor 4 passes through the shaft coupling and is connected with drive shaft one end, and the drive shaft other end is connected with drive wheel 9, connects through main shaft 10 between two brushless motor 4. The main shaft 10 is fixed on the upper bearing seat 8 and the lower bearing seat 28 through the bearings 7, the bearing support rings 6 and the end covers 5 at two ends, and the upper bearing seat 8 and the lower bearing seat 28 are connected together through screws. The connecting shaft 30 is arranged on the shaft sleeve 25 and fixedly connected with the shaft sleeve 25 through a nut 23, the shaft end of the connecting shaft 30 is fixed through a limiting ring, and the shaft sleeve 25 is fixed on the mounting plate 12 through a screw. The motor protection device further comprises a motor housing 3, wherein the motor housing 3 covers the brushless motor 4 and is connected with the support through screws so as to protect the brushless motor 4.

A lifting mechanism that drives the carriage to slide along the mounting plate 12 is also included in this embodiment. The lifting mechanism comprises a lifting motor 13, a speed reducer, a cam 19 and a connecting shaft 30, wherein one end of the speed reducer is connected with an output shaft of the motor 13, the other end of the speed reducer is connected with the cam 19 through a flat key 17, a cam bearing 20 is arranged at the eccentric position of the cam 19, and the cam bearing 20 is rotatably connected with the cam 19. The connecting shaft 30 penetrates through the connecting frame and is in sliding fit with the connecting frame, the lower end of the connecting shaft 30 is fixedly connected with the bracket through a bolt, the upper end of the connecting shaft 30 is provided with a deviation-correcting cam 24, and the cam bearing 20 abuts against the lower end face of the deviation-correcting cam 24. The embodiment also comprises a spring 11, and two ends of the spring 11 are respectively connected with the upper end of the bracket and the lower end of the connecting frame.

The specific implementation process is as follows: in the original state, the device is connected with the AG robot through a mounting plate 12; the driving part drives the driving wheel 9 to rotate so as to drive the AGV robot to move and work. When the AGV robot needs to be maintained, the AGV robot needs to be pushed from the working area to the maintenance area. At this time, the lifting mechanism is started, that is, the lifting motor 13 is started and drives the cam 19 to rotate through the speed reducer, and the cam bearing 20 rotates along the cam 19 because the cam bearing 20 is provided at the eccentric position of the cam 19. And because the lower end surfaces of the cam bearing 20 and the deviation correcting cam 24 are lowered, the cam bearing 20 rotates along the axis of the cam 19 to drive the deviation correcting cam 24 to move upwards and drive the connecting shaft 30 to slide upwards along the connecting frame through the deviation correcting cam 24, namely, the lifting mechanism drives the support to slide upwards along the connecting frame, so that the driving wheel 9 is separated from the ground, the spring 11 compresses and stores energy at the moment, and then the AGV robot can be driven to a required place. When it is desired to drive the AGV robot again, the lift motor 13 is rotated in the opposite direction, causing the carriage to slide downwardly under its weight and the action of the spring 11 until the drive wheel 9 contacts the ground. In the whole process, the deviation rectifying cam 24 and the shaft sleeve 25 can play a role of rectifying deviation, and the service life of the driving wheel 9 is prevented from being influenced by radial deviation in the ascending or descending process.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. The utility model provides a deviation correcting device for AGV dolly which characterized in that: including link, support, mounting panel, connecting axle and hoist mechanism, the support both sides are equipped with the drive division of drive wheel and drive wheel, the connecting axle pass the link and with link sliding connection, connecting axle lower extreme and leg joint, the connecting axle upper end with the cam rigid coupling of rectifying.

2. The deviation rectification device for an AGV cart of claim 1, wherein: the connecting shaft is characterized by further comprising a shaft sleeve, wherein the shaft sleeve is arranged on the outer side of the connecting shaft and is in sliding fit with the connecting frame.

3. The deviation rectification device for an AGV cart of claim 2, wherein: the lifting mechanism comprises a motor and a cam, wherein a cam bearing is arranged at the eccentric position of the cam, and the cam bearing is abutted to the deviation rectifying cam.

4. A deviation rectification device for an AGV cart according to claim 3, including: the spring is further included, and two ends of the spring are respectively connected with the support and the mounting plate.

5. The deviation rectification device for an AGV cart of claim 4, wherein: the driving part comprises a brushless motor, the brushless motor is fixedly connected with the bracket, and the output end of the brushless motor is connected with the driving wheel.

6. The deviation rectification device for an AGV cart of claim 5, wherein: the brushless motor is characterized by further comprising a housing, wherein the housing is arranged on the outer side of the brushless motor and fixedly connected with the support.

Images