CN215886234U

CN215886234U - AGV lifting device

Info

Publication number: CN215886234U
Application number: CN202121959900.0U
Authority: CN
Inventors: 段克槐; 贾宏达; 佟坤
Original assignee: Huaxiao Precision Suzhou Co ltd
Current assignee: Huaxiao Precision Suzhou Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-22
Anticipated expiration: 2031-08-19

Abstract

The utility model provides an AGV lifting device, comprising: the lifting plate is arranged right above the substrate, and a spacing space is formed between the lifting plate and the substrate; the rotating shaft is rotatably arranged in the space, at least two cams are arranged on the rotating shaft at intervals, and the cams are in contact and butt joint with the lifting plate; the first driving piece is arranged in the interval space and is suitable for driving the rotating shaft to rotate through the transmission assembly; and the shear fork supports are provided with two groups positioned in the interval space and are respectively arranged on two sides of the shaft, and the shear fork supports are suitable for supporting the lifting plate to stably lift. According to the AGV lifting device, the lifting plate is lifted by the cam, the cam and the lifting plate are always in a contact state, the lifting speed is high, and the idle running of the cam is avoided; when the lifting is carried out, the scissor support guides and supports the lifting plate, so that the movement of the lifting plate is more stable; the rotating shaft, the cam, the first driving piece and the scissor support are all located in the space between the lifting plate and the base plate, the structure is compact, and the occupied space is small.

Description

AGV lifting device

Technical Field

The utility model relates to the technical field of logistics transportation, in particular to an AGV lifting device.

Background

With the rapid development of industrial automation, the degree of automation of AGVs (automatic guided vehicles) in the operation process of the AGVs by enterprises is higher and higher, and the AGVs are required to have automatic loading and unloading of goods, so that corresponding automatic lifting devices need to be designed for the AGVs.

In the prior art, a screw rod lifting structure and a screw lifting machine are generally adopted for lifting, and are matched with a linear guide rail for guiding. The screw lifting mechanism is slow in lifting speed, risks of impacting a limit stop due to electrical faults exist, and is slow in lifting speed and high in cost; and the two lifting structures occupy larger space, and have great limitation in use.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects of large occupied space and low lifting speed of an AGV lifting structure in the prior art, so that the AGV lifting device is provided.

In order to solve the above technical problem, the present invention provides an AGV lifting apparatus, including:

the lifting plate is arranged right above the substrate, and a spacing space is formed between the lifting plate and the substrate;

the rotating shaft is rotatably arranged in the interval space, at least two cams are arranged on the rotating shaft at intervals, and the cams are in contact and abutted with the lifting plate;

the first driving piece is arranged in the interval space and is suitable for driving the rotating shaft to rotate through a transmission assembly;

and the scissor supports are provided with two groups positioned in the interval space and are respectively arranged at two sides of the rotating shaft, and the scissor supports are suitable for supporting the lifting plate to lift stably.

Further, the lifter plate with be equipped with spacing subassembly between the base plate, spacing subassembly includes: the first limiting part is arranged on the base plate, and the second limiting part is arranged on the lifting plate and is suitable for being collided with the first limiting part to block.

Further, the scissors support comprises: the first connecting rod and the second connecting rod are arranged in a crossed mode, and the first connecting rod is rotatably connected with the second connecting rod;

one end of the first connecting rod is hinged to the lifting plate, and the other end of the first connecting rod is in sliding connection with the top surface of the base plate through a roller;

one end of the second connecting rod is hinged to the base plate, and the other end of the second connecting rod is connected with the bottom surface of the lifting plate in a sliding mode through a roller.

Further, the transmission assembly includes:

the driving chain wheel is rotatably arranged on the supporting seat connected with the substrate;

the driven chain wheel is coaxially arranged on the rotating shaft;

the chain is wound between the driving chain wheel and the driven chain wheel, and the driving chain wheel is suitable for driving the driven chain wheel to rotate through the chain.

Further, still include:

the detection piece is connected to the lifting plate;

the sensor is connected to the base plate in a vertically adjustable mode, the sensor is in signal connection with the first driving piece, and the sensor is used for sensing and transmitting position signals of the detecting piece.

Furthermore, the bottom surface of the lifting plate is provided with a jacking block which is opposite to the cam, and the cam is in contact and butt joint with the jacking block.

Furthermore, a heat dissipation opening is formed in the substrate, and the heat dissipation opening faces the first driving piece and the rotating shaft.

Further, still include:

the slewing bearing is arranged at the center of the top of the lifting plate;

the driving gear is arranged at the top of the lifting plate and is meshed and connected with the slewing bearing;

and the second driving piece is arranged on the lifting plate and is suitable for driving the driving gear to rotate.

The technical scheme of the utility model has the following advantages:

according to the AGV lifting device, the lifting plate is lifted by the cam, the cam and the lifting plate are always in a contact state, the lifting speed is high, and the idle running of the cam is avoided; when the lifting is carried out, the scissor support guides and supports the lifting plate, so that the movement of the lifting plate is more stable; the rotating shaft, the cam, the first driving piece and the scissor support are all located in the space between the lifting plate and the base plate, the structure is compact, and the occupied space is small.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a first schematic structural diagram of an AGV lifting device provided in the present invention.

FIG. 2 is a second schematic view of an AGV lifting apparatus according to the present invention.

FIG. 3 is a third schematic structural diagram of an AGV lifting device provided in the present invention.

Description of reference numerals:

1. a lifting plate; 2. a substrate; 3. a rotating shaft; 4. a cam; 5. a first driving member; 6. jacking blocks; 7. a support plate; 8. a bearing seat; 9. a drive sprocket; 10. a driven sprocket; 11. a chain; 12. a first link; 13. a second link; 14. a groove plate; 15. a roller; 16. a first limit piece; 17. a second limiting member; 18. a first connecting plate; 19. a second connecting plate; 20. a sensor; 21. a detection member; 22. a heat dissipation port; 23. a slewing bearing; 24. a drive gear; 25. a second driving member.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The AGV lifting device provided in this embodiment includes: lifting plate 1, base plate 2, pivot 3, cam 4, first driving piece 5 and scissors fork support.

As shown in fig. 1, the base plate 2 and the lifting plate 1 are spaced from each other vertically, and a rectangular space is formed between the base plate 2 and the lifting plate 1. Two bearing seats 8 are arranged on the top surface of the base, and the two bearing seats 8 are opposite to each other at a left-right interval; the rotating shaft 3 is rotatably connected between the two bearing seats 8, and the rotating shaft 3 is connected with two cams 4 which are arranged at left and right intervals; two jacking blocks 6 that the interval set up about having on the bottom surface of lifter plate 1, jacking block 6 with 4 one-to-one of cam, cam 4 with 6 contact butt of jacking block. A supporting plate 7 which is vertically connected is arranged on the top surface of the base plate 2, the first driving piece 5 is connected on the supporting plate 7, a driving shaft of the first driving piece 5 vertically penetrates through the supporting plate 7, and a penetrating part of the driving shaft is connected with a driving chain wheel 9; one end of the rotating shaft 3 is connected with a driven chain wheel 10, and the driven chain wheel 10 is arranged coaxially with the rotating shaft 3; the driving chain wheel 9 and the driven chain wheel 10 are wound and connected through a chain 11 to form a transmission assembly, and the first driving piece 5 drives the rotating shaft 3 to rotate through the transmission assembly, so as to drive the cam 4 to rotate and jack the lifting plate 1.

As shown in fig. 1 and 2, the front side and the rear side of the rotating shaft 3 are both provided with a scissor support, the scissor support comprises a first connecting rod 12 and a second connecting rod 13 which are arranged in a crossed manner, and the first connecting rod 12 and the second connecting rod 13 are used for supporting the lifting plate 1 to stably lift. One end of the first connecting rod 12 is hinged on the lifting plate 1, and the other end is in sliding connection with a groove plate 14 on the top surface of the base plate 2 through a roller 15; one end of the second connecting rod 13 is hinged on the base plate 2, and the other end is connected with a groove plate 14 on the bottom surface of the lifting plate 1 in a sliding manner through a roller 15. The roller 15 is a double-row angular contact ball bearing, the roller 15 is rotatably connected to the first connecting rod 12 and the second connecting rod 13, a U-shaped groove for accommodating the roller 15 is formed in the groove plate 14, and the roller 15 is slidably arranged in the U-shaped groove. A limiting assembly is arranged between the lifting plate 1 and the base plate 2 and used for vertically limiting and blocking the lifting plate 1; the limiting assembly comprises a first limiting piece 16 and a second limiting piece 17, and the first limiting piece 16 and the second limiting piece 17 are both U-shaped plates; the first limiting piece 16 is connected to the top surface of the substrate 2, and an opening of the first limiting piece 16 is arranged inward; the second limiting piece 17 is connected to the bottom surface of the lifting plate 1, and an opening of the second limiting piece 17 is arranged outwards; the side plate extending outwards from the second limiting part 17 and the side plate extending inwards from the first limiting part 16 are contacted and blocked, and mechanical limitation of the lifting plate 1 is realized.

As shown in fig. 2, the top surface of the substrate 2 has a first connecting plate 18 disposed vertically upward, and the first connecting plate 18 has two sensors 20 disposed at intervals up and down; two vertically-arranged strip holes are formed in the first connecting plate 18, the sensor 20 is connected to the first connecting plate 18 through a mounting plate, the mounting holes in the mounting plate correspond to the strip holes one to one, and the sensor 20 can be adjusted up and down along the strip holes. The bottom surface of the lifting plate 1 is provided with a second connecting plate 19 which is vertically arranged downwards, a detection piece 21 is fixed on the second connecting plate 19, and the detection piece 21 faces the sensor 20. The sensor 20 is in signal connection with the first driving member 5, and the sensor 20 is used for sensing and transmitting a position signal of the detecting member 21, so that start-stop operation of the first driving member 5 is indirectly realized.

As shown in fig. 2 and 3, a heat dissipation opening 22 is formed in the substrate 2, the heat dissipation opening 22 is disposed toward the first driving member 5 and the rotating shaft 3, and the first driving member 5 and the rotating shaft 3 can dissipate heat through the heat dissipation opening 22. A slewing bearing 23 is connected to the center of the top of the lifting plate 1, the inner ring of the slewing bearing 23 is connected with the lifting plate 1, and the outer ring of the slewing bearing 23 is provided with external teeth; the second driving member 25 is installed on the lifting plate 1, a driving shaft of the second driving member vertically penetrates through the lifting plate 1 upwards, a driving gear 24 is sleeved on an extending end of the driving shaft, and the second driving member 25 is used for driving the driving gear 24 to rotate; the driving gear 24 is engaged with the external teeth of the slewing bearing 23, and further drives the slewing bearing 23 to rotate.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. An AGV lifting apparatus comprising:

the lifting plate (1) is arranged right above the substrate (2), and a spacing space is formed between the lifting plate (1) and the substrate (2);

the rotating shaft (3) is rotatably arranged in the interval space, at least two cams (4) arranged at intervals are arranged on the rotating shaft (3), and the cams (4) are in contact and abutted with the lifting plate (1);

the first driving piece (5) is arranged in the interval space and is suitable for driving the rotating shaft (3) to rotate through a transmission assembly;

the scissors supports are provided with two groups located in the space and are respectively arranged on two sides of the rotating shaft (3), and the scissors supports are suitable for supporting the lifting plate (1) to stably lift.

2. AGV lifting device according to claim 1, characterized in that a stop assembly is provided between the lifting plate (1) and the base plate (2), which stop assembly comprises: locate first locating part (16) on base plate (2) and locate second locating part (17) of lifter plate (1), second locating part (17) be suitable for with first locating part (16) collision stops.

3. The AGV lifting apparatus of claim 1, wherein said scissors support comprises: the first connecting rod (12) and the second connecting rod (13) are arranged in a crossed mode, and the first connecting rod (12) is rotatably connected with the second connecting rod (13);

one end of the first connecting rod (12) is hinged on the lifting plate (1), and the other end of the first connecting rod is connected with the top surface of the base plate (2) in a sliding mode through a roller (15);

one end of the second connecting rod (13) is hinged to the base plate (2), and the other end of the second connecting rod is connected with the bottom surface of the lifting plate (1) in a sliding mode through a roller (15).

4. The AGV lifting apparatus of claim 1, wherein the drive assembly includes:

the driving chain wheel (9) is rotatably arranged on a supporting seat connected with the substrate (2);

the driven chain wheel (10) is coaxially arranged on the rotating shaft (3);

the chain (11) is wound between the driving chain wheel (9) and the driven chain wheel (10), and the driving chain wheel (9) is suitable for driving the driven chain wheel (10) to rotate through the chain (11).

5. The AGV lifting apparatus of claim 1 further comprising:

a detection piece (21) connected to the lifting plate (1);

the sensor (20) is connected to the base plate (2) in a vertically adjustable mode, the sensor (20) is in signal connection with the first driving piece (5), and the sensor (20) is used for sensing and transmitting a position signal of the detection piece (21).

6. AGV lifting device according to claim 1, characterised in that the lifting plate (1) has on its underside a lifting block (6) arranged opposite the cam (4), the cam (4) being in contact abutment with the lifting block (6).

7. AGV lifting device according to claim 1, characterized in that the base plate (2) is provided with a heat sink (22), the heat sink (22) being arranged towards the first drive element (5) and the spindle (3).

8. The AGV lifting apparatus of claim 1 further comprising:

the slewing bearing (23) is arranged at the center of the top of the lifting plate (1);

the driving gear (24) is arranged at the top of the lifting plate (1) and is meshed and connected with the slewing bearing (23);

and the second driving piece (25) is arranged on the lifting plate (1) and is suitable for driving the driving gear (24) to rotate.