CN213623068U

CN213623068U - Flat AGV drive unit hoisting device

Info

Publication number: CN213623068U
Application number: CN202022108140.4U
Authority: CN
Inventors: 陆远萍; 吴清江; 石勇; 雷光; 程振轩
Original assignee: Dongfeng Special Equipment Technology Co ltd
Current assignee: Dongfeng Special Equipment Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-07-06
Anticipated expiration: 2030-09-23

Abstract

The utility model belongs to the technical field of unmanned handling tool, concretely relates to plate AGV drive unit hoisting device. Including promoting the piece, the ejector pad, the lead screw nut structure of being connected with the ejector pad, linear guide structure, operating handle, it is an arc inclined plane to promote the piece, and fixed mounting lets the lead screw rotatory through rotating operating handle on the ejector pad, drives the ejector pad and is linear motion along the guide rail, and follow-up promotes the piece and takes place relative movement after waiting to promote the movable end of drive unit, treats that to promote the movable end of drive unit and removes to the inclined plane top from the inclined plane bottom, accomplishes the promotion process. The lifting mode enlarges the lifting stroke, so that the lifting process is smoother, and the movable end of the driving unit to be lifted can stay on the inclined surface to keep a lifting locking state. The device is small and exquisite, saves space, does not influence flat AGV's the area that can bear, is particularly useful for the short flat AGV of storage trade.

Description

Flat AGV drive unit hoisting device

Technical Field

The utility model belongs to the technical field of unmanned handling tool, a plate AGV drive unit hoisting device is specifically disclosed.

Background

An Automated Guided Vehicle (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, and is a transport Vehicle that does not require a driver in industrial applications. At present, the frictional resistance that receives the drive unit drive wheel when AGV outage removes is great, makes AGV remove the difficulty, and AGV's drive wheel ground connection simultaneously, driving motor reverse charging causes the driver to damage, can dispose drive unit hoisting device for this reason, makes drive unit can break away from ground, makes AGV ability normal removal, can not cause any influence to the driver.

The existing drive unit lifting device is arranged above the drive unit, and a lifting speed reduction motor is arranged to be vertical to the running direction of the AGV body, and a lifting point is arranged on a central shaft of the drive unit. Therefore, the conventional automatic lifting device is limited by height space, power torque of a speed reduction motor and width space of a vehicle body, and the conventional lifting device cannot be used for lifting the driving unit on a flat-plate AGV (the height of the vehicle body is less than 230 mm).

On a flat-plate type AGV (the height of a vehicle body is less than 230mm), if the driving wheels are required to be lifted off the ground, the lifting gap is very small, the two driving wheels are difficult to frequently perform reliable, accurate and impact-free lifting and descending actions in the small gap, and how to realize action limiting and self-locking after positioning is also a difficulty in designing the lifting device.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem listed in the background art, the utility model provides a flat AGV drive unit hoisting device, concrete technical scheme is as follows:

the utility model provides a plate AGV drive unit hoisting device, includes promotion piece, ejector pad, screw nut structure, linear guide structure includes linear guide and gliding slider above that, the lead screw axis of screw nut structure with linear guide structure's guide rail central line is parallel, the ejector pad respectively with the nut of screw nut structure with slider fixed connection, be fixed with the promotion piece on the ejector pad, the promotion piece includes wedge-shaped promotion structure.

The pushing block can linearly move along with the nut along the axial direction of the screw rod, when the wedge-shaped lifting structure is contacted with the movable end of the driving unit to be lifted, the contact height of the wedge-shaped part is gradually increased, so that the movable end of the driving unit to be lifted moves from the bottom of the inclined plane to the top of the inclined plane, and the lifting process is completed.

The design enlarges the stroke of the moving part in the lifting process through the inclined plane, cannot generate impact and collision caused by sudden rising and falling, is favorable for realizing self-locking and limiting, and has small size without occupying the storage space on the flat plate.

The screw nut structure can be driven by an electric driving structure or a manual driving structure.

Preferably, wedge-shaped lifting structure includes the promotion portion that contact site, contact site extend, the contact site includes the arc end, and the arc end is connected with the bottom surface, and the arc end extends the promotion portion that forms the wedge inclined plane, contact site and promotion portion upper surface junction smooth transition.

Therefore, when the lifting block is contacted with the movable end of the driving unit and moves relatively, the moving direction of the movable end of the driving unit to be lifted can be changed smoothly.

Preferably, the lifting block further comprises a connecting portion, the connecting portion is provided with a connecting hole, and the connecting hole is connected with the pushing block through threads. The disassembly and the assembly are convenient through threaded connection.

Preferably, the connecting part is arranged on the extending section of the lifting part and smoothly transits at the junction with the upper surface of the lifting part. The rear part of the connecting part is arranged, and the structure of the front part is not influenced.

Preferably, the screw nut structure is a trapezoidal screw nut transmission mechanism.

Preferably, the screw nut structure further comprises a support seat, and the support seat comprises a screw support side support and a screw fixing side support; the lead screw of the lead screw nut structure is connected with the supporting seat, and one end of the lead screw penetrates out of the lead screw fixing side supporting seat. The penetrating end is connected with the driving structure.

Preferably, one end of the screw rod is connected with a manual driving structure. The manual driving structure is adopted to realize convenient disassembly and assembly, and when the device is not used, the manual driving structure can be disassembled.

Preferably, the linear guide rail structure is provided with a limiting block.

In order to avoid part collision caused by an operator exceeding a set stroke when the handle is rotated, the linear guide rail structure is provided with a limit position which can limit the range of the push block moving along the linear guide rail.

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

the utility model discloses a motion realizes the promotion of the vertical direction of drive wheel that is correlated with it at the removal of inclined plane direction, and the promotion process is more steady, and is more reliable in auto-lock and spacing aspect, and the device is small and exquisite, saves space, does not influence plate AGV's bearing area.

Drawings

FIG. 1 is a three-dimensional structure diagram of a lifting device of a flat AGV driving unit according to an embodiment of the present invention;

fig. 2 shows a schematic view of a lifting block structure in an embodiment of the present invention;

FIG. 3 is a schematic view of the push block according to the embodiment of the present invention;

in the figure: 1-a lifting block; 1.1-connecting hole; 1.2-contact; 1.3 connecting part; 2-pushing a block; 2.1-left side of the push block; 2.2, the right side of the push block; 2.3-the front side of the push block; 3-screw nut structure; 3.1-trapezoidal lead screw; 3.2-trapezoidal nut; 3.3-the screw rod supports the side support; 3.4-fixing the side support by the screw rod; 4-a linear guide rail structure; 4.1-a slide block; 4.2-guide rail; 4.3-rear limiting plate; 4.4 front limiting plate; 4.5-fixed seat; 5-operating a handle;

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described below with reference to the accompanying drawings and specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. All other embodiments obtained by a person skilled in the art based on this embodiment without any creative effort belong to the protection scope of the present invention.

Referring to fig. 1, the lifting device of the flat-plate type AGV driving unit comprises a lifting block 1, a pushing block 2, a screw nut structure 3 connected with the pushing block, a linear guide rail structure 4 and an operating handle 5.

Promote piece 1 and include and constitute wedge-shaped promotion structure and connecting portion 1.3 by contact site 1.2 and the promotion portion that extends, contact site 1.2 includes the arc end, and the arc end is connected with the bottom surface, and the arc end extends the promotion portion that forms the wedge inclined plane, and contact site 1.2 and promotion portion upper surface intersection smooth transition, connecting portion 1.3 have seted up connecting hole 1.1, locate promotion portion outwards to extend the section, with promotion portion upper surface intersection smooth transition. Therefore, when the movable end on the driving unit is contacted with the lifting block 1, the movable end can smoothly move from the contact part 1.2 to the upper surface of the connecting part 1.3; the connecting hole 1.1 is connected with the push block through threads, so that the push block is convenient to disassemble and assemble, and the upper surface of the connecting part 1.3 is ensured to be horizontal during installation. Therefore, when the movable end of the driving unit is positioned on the upper surface of the connecting part 1.3, the driving wheel of the lifted driving unit can be always kept in a state of being separated from the ground, and the self-locking function is achieved.

The left side 2.1 of the push block is connected with the lifting block 1 through a connecting hole 1.1, the right side 2.2 of the push block is connected with a sliding block 4.1 of the linear guide rail structure 4, and the front side 2.3 of the push block is connected with a trapezoidal nut 3.2 in the screw nut structure.

The screw nut structure 3 comprises a trapezoidal screw 3.1, a trapezoidal nut 3.2, a screw support side support 3.3 and a screw fixing side support 3.4. The trapezoidal nut 3.2 is connected with the push block 2; the trapezoidal screw rod 3.1 is horizontally arranged on the screw rod supporting side support 3.3 and the screw rod fixing side support 3.4. The screw rod supporting side support 3.3 and the screw rod fixing side support 3.4 are respectively installed on two sides of the AGV body, and the trapezoidal nut 3.2 can rotate back and forth on the trapezoidal screw rod 3.1.

The linear guide rail 4 structurally comprises a sliding block 4.1, a guide rail 4.2, a rear limiting plate 4.3, a front limiting plate 4.4 and a fixed seat 4.5. The slide 4.1 is connected with the push block 2 through a hole. The guide rail 4.2 ensures that the motion direction of the push block 2 on the trapezoidal screw rod 3.1 is a straight line, and prevents the reliability of the lifting of the driving wheel from being influenced by the rotation between the push block 2 and the trapezoidal nut 3.2. The front limiting plate 4.4 and the rear limiting plate 4.3 are used for limiting the moving distance of the push block and preventing the push block from colliding with other parts during moving. The fixing seat 4.5 is used for installing the linear guide rail 4.2 on the AGV body.

The end of one end of the trapezoidal screw rod 3.1 extending out of the fixed side support 3.4 is processed into a prism with a square section, the operating handle 5 is a rocker, and one end of the operating handle is fixed with a sleeve which can be sleeved with the square prism. When the driving unit 6 of the AGV needs to be lifted, the sleeve end of the operating handle 5 can be sleeved on the prism, the operating handle 5 is shaken to drive the trapezoidal screw rod 3.1 to rotate in a labor-saving manner, so that the trapezoidal nut 3.2 is driven to move back and forth, and the lifting block 1 moves in the front and back direction. When the lifting block 1 moves forward to be tangent to the movable end of the driving unit, the movable end moves to the upper surface of the connecting part 1.3 from the contact part 1.2, so that the driving unit is driven to realize lifting.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat AGV drive unit hoisting device, includes promotion piece, ejector pad, screw nut structure, linear guide structure includes linear guide and the gliding slider above that, the lead screw axis of screw nut structure with the guide rail central line of linear guide structure is parallel, characterized in that: the push block is fixedly connected with the nut of the screw nut structure and the sliding block respectively, a lifting block is fixed on the push block, and the lifting block comprises a wedge-shaped lifting structure.

2. A flat AGV drive unit lift according to claim 1 wherein: wedge-shaped lifting structure includes the promotion portion that contact site, contact site extend, the contact site includes the arc end, and the arc end is connected with the bottom surface, and the arc end extends the promotion portion that forms wedge inclined plane, contact site and promotion portion upper surface junction smooth transition.

3. A flat AGV drive unit lift according to claim 1 or 2 wherein: the lifting block further comprises a connecting portion, the connecting portion is provided with a connecting hole, and the connecting hole is connected with the pushing block through threads.

4. A flat AGV drive unit lift according to claim 3 wherein: the connecting part is arranged on the extending section of the lifting part and smoothly transits at the junction of the connecting part and the upper surface of the lifting part.

5. A flat AGV drive unit lift according to claim 1 wherein: the lead screw nut structure is a trapezoidal lead screw nut transmission mechanism.

6. A flat AGV drive unit lift according to claim 1 wherein: the screw nut structure further comprises a supporting seat, and the supporting seat comprises a screw supporting side supporting seat and a screw fixing side supporting seat; the lead screw of the lead screw nut structure is connected with the supporting seat, and one end of the lead screw penetrates out of the lead screw fixing side supporting seat.

7. A flat AGV drive unit lift according to claim 1 or 6 wherein one end of said lead screw is connected to a manual drive mechanism.

8. A flat AGV drive unit lift according to claim 1 wherein: and a limiting block is arranged on the linear guide rail structure.