CN219429640U

CN219429640U - High-load lifting mechanism

Info

Publication number: CN219429640U
Application number: CN202320212844.7U
Authority: CN
Inventors: 袁佳涵; 邓虎
Original assignee: Shanghai Aoyue Intelligent Technology Co ltd
Current assignee: Shanghai Aoyue Intelligent Technology Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-07-28
Anticipated expiration: 2033-02-15

Abstract

The utility model discloses a high-load lifting mechanism which comprises a lifting platform, a fixed base, a screw nut component and a gear motor, wherein a mounting disc is arranged at the bottom of the lifting platform, a corner power bevel gear a is connected with the end part of a motor shaft of the gear motor in a transmission manner, a corner power bevel gear b is connected with the top part of the corner power bevel gear a in a transmission manner, a power output gear is connected with the top end part of the corner power bevel gear b, and a slewing bearing gear disc is arranged at the center of the surface of the mounting disc. The automatic lifting device can be installed on various AGVs, is integrated and integrally arranged, has compact lifting structure, solves the problem of structural clamping caused by uneven stress, improves structural stability and service life, has the characteristics of high load and low power, is realized by utilizing a speed reducer and screw rod parts, ensures that the AGVs lift cargoes easily by low power, adopts standard component combined transmission, ensures production precision errors and production cost, increases transmission torque by utilizing three groups of screw rod lifting transmission, and improves lifting efficiency.

Description

High-load lifting mechanism

Technical Field

The utility model relates to the field of AGV trolley lifting, in particular to a high-load lifting mechanism.

Background

AGV dolly is because compact structure, and degree of automation is high, and the use cost is low, is extensively used for modernization assembly line workshop. The requirements of various assembly lines on the functions of the AGVs are different, so that the internal structures and the external shapes of the AGVs are different; the AGVs are used for transporting products, and can be matched with lifting devices so as to be convenient for transporting the products more efficiently, and as the AGVs are always in a moving state, the AGVs are required to maintain high stability;

the elevator in a conventional AGV has the following disadvantages:

1. the lifting disc is easy to be blocked when the load of the lifting disc is uneven, and the service life is influenced;

2. the complex machining precision of parts is high, and the production cost is high;

3. the transmission lifting torque is lower, and the lifting efficiency is low;

from this scheme provides a new high load elevating system, assembles the oscilaltion effect in realizing the product transportation on the AGV dolly, solves above-mentioned problem.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a high-load lifting mechanism.

The utility model provides the following technical scheme:

the utility model provides a high-load lifting mechanism which comprises a lifting platform, a fixed base, a screw nut component and a gear motor, wherein the bottom of the lifting platform is provided with a mounting disc, the mounting disc is of a triangular plate structure with a central round hole, the gear motor is fixed on the bottom surface of the mounting disc, the end part of a motor shaft of the gear motor is in transmission connection with a corner power umbrella wheel a, the top part of the corner power umbrella wheel a is in transmission connection with a corner power umbrella wheel b, the top end part of the corner power umbrella wheel b is connected with a power output gear, and a slewing bearing gear disc is arranged in the center of the surface of the mounting disc;

the number of the screw-nut assemblies is three, the three screw-nut assemblies are respectively distributed at three corner ends of the fixed base, screw transmission gears are arranged at the top ends of the screw-nut assemblies, and the slewing bearing gear disc, the screw transmission gears and the power output gears are all positioned on the same horizontal plane between the lifting platform and the mounting disc interlayer.

As a preferable technical scheme of the utility model, the screw rod transmission gear and the power output gear are both positioned at the outer side of the slewing bearing gear disc, the speed reducing motor drives the power output gear to rotate through the corner power bevel gear a and the corner power bevel gear b, the power output gear is in transmission connection with the slewing bearing gear disc, the slewing bearing gear disc is in transmission connection with the three screw rod transmission gears at the outer side, and the three screw rod transmission gears are driven to rotate under the rotation action of the slewing bearing gear disc, so that the screw rod screw assembly is controlled to drive the lifting platform to lift up and down.

As a preferable technical scheme of the utility model, the bottom surface of the mounting plate is also provided with a limit sensor, the limit sensor is positioned at one side of the corner power umbrella wheel a, and an electric connecting wire on the limit sensor penetrates through the fixed base and is connected with an external electric controller device.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model has the advantages that the integral structure can be arranged on various AGVs, the structure is integrated and integrally arranged, the torque of the speed reducing motor acts on the corner power bevel wheel a and the corner power bevel wheel b to drive the power output gear, then the power output gear drives the slewing bearing gear disc to uniformly distribute the torque to the three screw drive gears, thereby driving the three groups of screw nut assemblies to realize the up-down lifting effect of the lifting platform, ensuring the compact installation of the lifting structure, solving the structure clamping problem caused by uneven stress, improving the structural stability and prolonging the service life, and the structure has the characteristics of high load and low power, is realized by utilizing the speed reducer and screw parts, ensures the AGVs to lift cargoes easily by adopting standard part combined transmission, ensures the production precision error and the production cost, and utilizes the three groups of screw lifting transmission to increase the transmission torque and improve the lifting efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a block diagram of the present utility model;

FIG. 2 is a view in the A-A direction of FIG. 1;

FIG. 3 is another perspective side view of FIG. 1;

FIG. 4 is a top view of FIG. 1;

in the figure: 1. a lifting platform; 2. a slewing bearing gear plate; 3. a screw rod transmission gear; 4. a power take-off gear; 5. a feed screw nut assembly; 6. a corner power umbrella wheel a; 7. a fixed base; 8. a speed reducing motor; 9. a limit sensor; 10. a mounting plate; 11. and a corner power umbrella wheel b.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model. Wherein like reference numerals refer to like elements throughout.

Further, if detailed description of the known art is not necessary to illustrate the features of the present utility model, it will be omitted. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

Example 1

1-4, the utility model provides a high-load lifting mechanism, which comprises a lifting platform 1, a fixed base 7, a screw nut component 5 and a gear motor 8, wherein the bottom of the lifting platform 1 is provided with a mounting plate 10, the mounting plate 10 is of a triangular plate structure with a central round hole, the gear motor 8 is fixed on the bottom surface of the mounting plate 10, the end part of a motor shaft of the gear motor 8 is in transmission connection with a corner power umbrella wheel a6, the top part of the corner power umbrella wheel a6 is in transmission connection with a corner power umbrella wheel b11, the top end part of the corner power umbrella wheel b11 is connected with a power output gear 4, and the center of the surface of the mounting plate 10 is provided with a slewing bearing gear disc 2;

the number of the screw nut assemblies 5 is three, the three screw nut assemblies 5 are respectively distributed at three corner ends of the fixed base 7, the screw transmission gear 3 is arranged at the top end of the screw nut assemblies 5, and the slewing bearing gear disc 2, the screw transmission gear 3 and the power output gear 4 are all positioned on the same horizontal plane between the lifting platform 1 and the interlayer of the mounting disc 10.

The screw rod transmission gear 3 and the power output gear 4 are both positioned on the outer side of the slewing bearing gear disc 2, the speed reducing motor 8 drives the power output gear 4 to rotate through the corner power bevel gear a6 and the corner power bevel gear b11, the power output gear 4 is in transmission connection with the slewing bearing gear disc 2, the slewing bearing gear disc 2 is in transmission connection with the three screw rod transmission gears 3 on the outer side, and the three screw rod transmission gears 3 are driven to rotate under the rotation action of the slewing bearing gear disc 2, so that the screw rod screw assembly 5 is controlled to drive the lifting platform 1 to lift up and down.

The bottom surface of the mounting plate 10 is also provided with a limit sensor 9, the limit sensor 9 is positioned at one side of the corner power umbrella wheel a6, and an electric connecting wire on the limit sensor 9 penetrates through the fixed base 7 and then is connected with an external electric controller device.

In the device, the screw rod of the screw rod nut component 5 is of a trapezoid structure.

Further, the working principle of the device is as follows:

in the structure, a speed reducing motor 8 works, the end part of a motor shaft of the speed reducing motor drives a corner power bevel gear a6 to rotate, then the corner power bevel gear a6 drives a corner power bevel gear b11 to rotate, the corner power bevel gear b11 drives a power output gear 4 to rotate, the power output gear 4 drives a slewing bearing gear disc 2 to rotate, then the slewing bearing gear disc 2 drives three peripheral screw drive gears 3 to move, and the screw drive gears 3 drive three groups of screw nut assemblies 5 to move up and down, so that the up-and-down lifting effect of a lifting platform 1 is realized;

the lifting platform 1 and the mounting plate 10 are fixedly connected through a plurality of fixed columns, and the mounting plate 10 and the gear motor 8 follow each other to realize up-and-down lifting movement in the up-and-down lifting process of the lifting platform 1;

the bottom surface of the mounting plate 10 is also provided with a limit sensor 9, the limit sensor 9 is positioned at one side of the corner power umbrella wheel a6, an electric connecting wire on the limit sensor 9 penetrates through the fixed base 7 and then is connected with an external electric controller device, the external electric controller is used for receiving data of the limit sensor 9, and after the lifting platform 1 moves up and down, the limit sensor 9 follows to realize up and down lifting detection of limit height.

The utility model has the advantages that the integral structure can be arranged on various AGVs, the structure is integrated and integrally arranged, the torque of the speed reducing motor 8 acts on the corner power bevel gear a6 and the corner power bevel gear b11 to drive the power output gear 4, then the power output gear 4 drives the slewing bearing gear disc 2 to uniformly distribute the torque to the three screw rod driving gears 3, thereby driving the three screw rod nut assemblies 5 to realize the up-down lifting effect of the lifting platform 1, ensuring the compact installation of the lifting structure, solving the structure clamping problem caused by uneven stress, improving the structural stability and the service life, and the structure has the characteristics of high load and low power, and is realized by utilizing the speed reducer and screw rod parts, so that the AGV lifts cargoes easily.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The high-load lifting mechanism is characterized by comprising a lifting platform (1), a fixed base (7), a screw nut component (5) and a gear motor (8), wherein a mounting disc (10) is arranged at the bottom of the lifting platform (1), the mounting disc (10) is of a triangular plate structure with a central round hole, the gear motor (8) is fixed on the bottom surface of the mounting disc (10), a corner power umbrella wheel a (6) is connected with the end part of a motor shaft of the gear motor (8) in a transmission manner, a corner power umbrella wheel b (11) is connected with the top part of the corner power umbrella wheel a (6) in a transmission manner, a power output gear (4) is connected with the top end part of the corner power umbrella wheel b (11), and a slewing bearing gear disc (2) is arranged at the central position of the surface of the mounting disc (10);

the number of the screw nut assemblies (5) is three, the three screw nut assemblies (5) are respectively distributed at three corner ends of the fixed base (7), a screw transmission gear (3) is arranged at the top end of the screw nut assembly (5), and the slewing bearing gear disc (2), the screw transmission gear (3) and the power output gear (4) are all located on the same horizontal plane between the lifting platform (1) and the interlayer of the mounting disc (10).

2. The high-load lifting mechanism according to claim 1, wherein the screw transmission gear (3) and the power output gear (4) are both positioned at the outer side of the slewing bearing gear disc (2), the speed reducing motor (8) drives the power output gear (4) to rotate through the corner power bevel gear a (6) and the corner power bevel gear b (11), the power output gear (4) is in transmission connection with the slewing bearing gear disc (2), the slewing bearing gear disc (2) is in transmission connection with the three screw transmission gears (3) at the outer side, and the three screw transmission gears (3) are driven to rotate under the rotation action of the slewing bearing gear disc (2), so that the screw nut assembly (5) is controlled to drive the lifting platform (1) to lift up and down.

3. The high-load lifting mechanism according to claim 1, wherein a limit sensor (9) is further installed on the bottom surface of the installation disc (10), the limit sensor (9) is located on one side of the corner power umbrella wheel a (6), and an electric connecting wire on the limit sensor (9) penetrates through the fixed base (7) and then is connected with an external electric controller device.