Jacking device and latent jacking AGV trolley

Abstract

The utility model discloses a jacking device and a latent jacking AGV (Automatic Guided Vehicle) trolley, which comprise a chassis, a mounting base arranged in the chassis, a screw rod assembly arranged between a mounting footstock and the mounting base, a driving assembly arranged on the mounting footstock and used for driving the screw rod assembly to move, and a centering assembly arranged at the top of a jacking plate, the bearing seat is installed at the bottom of the installation top seat, the top of the outer wall of the lifting lead screw is rotationally connected with the bearing seat in a sleeved mode, the outer wall of the lead screw nut is fixedly connected with the installation base, and the outer wall of the lifting lead screw is connected with the lead screw nut in a threaded and sleeved mode. According to the utility model, the chassis, the jacking plate, the mounting top seat, the three groups of screw rod assemblies and the driving assembly are matched for use, and the driving assembly can drive the jacking plate to ascend through the three groups of screw rod assemblies, so that the cargo jacking stability of the jacking plate is improved, and when the jacking plate jacks cargos, a rocker on the centering assembly rotates towards the middle, so that the cargo jacking efficiency is improved. And efficient and accurate centering can be achieved, and the cargo butt joint precision is improved.

Description

Technical Field

[0001] The utility model relates to the field of lifting devices, in particular to a lifting device and a latent lifting AGV cart. Background Art

[0002] At present, AGV carts are commonly used in the industrial warehousing industry, mainly for transporting goods. There are two types of transportation methods: lifting type and traction type. Among them, lifting transportation means lifting the entire goods, with the cart bearing the full weight of the goods and then moving the goods away. Therefore, there are certain requirements for the lifting load-bearing capacity and the stability of the lifting platform.

[0003] Traditional lifting devices mostly use single-screw rod lifting and connecting rod lifting. The former has requirements for the size of the screw rod and the centering during installation: the greater the weight of the goods, the greater the torque on the screw rod, and poor centering is likely to cause the center of gravity to deviate and tip over. The latter has poor positioning accuracy. These two types of lifting devices cannot meet the requirements of stable load-bearing, large load-bearing capacity, and high positioning accuracy at the same time. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lifting device and a latent lifting AGV cart to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A lifting device, including a chassis, and a lifting plate is arranged on the top of the chassis;

[0006] An installation top seat is installed at the bottom of the lifting plate, an installation base is installed inside the chassis, a screw rod assembly is arranged between the installation top seat and the installation base, a driving assembly for driving the screw rod assembly to move is arranged on the installation top seat, and a centering assembly is arranged on the top of the lifting plate.

[0007] Preferably, the screw rod assembly includes:

[0008] A supporting seat, which is installed at the bottom of the installation top seat;

[0009] A lifting screw rod, the top of the outer wall of which is rotatably sleeved with the supporting seat;

[0010] A screw rod nut, the outer wall of which is fixedly connected to the installation base, and the outer wall of the lifting screw rod is threadedly sleeved with the screw rod nut.

[0011] Preferably, the driving assembly includes:

[0012] An installation bearing and a first driving gear, the first driving gear is rotatably installed on the top of the installation top seat through the installation bearing;

[0013] Connect the gear and the buckle. The connecting gear is installed at the top of the outer wall of the lifting lead screw through the buckle, and the connecting gear is meshed and connected with the first driving gear.

[0014] Preferably, a driving motor is installed at the bottom of the mounting top seat. The output end of the driving motor is drivingly connected with a second driving gear, and the second driving gear is meshed and connected with the first driving gear.

[0015] Preferably, a window matching the driving motor is opened at the top of the mounting base. A corrugated sleeve is installed between the jacking plate and the chassis, and a sealing plate cover is installed at the top of the jacking plate.

[0016] Preferably, the centering assembly includes:

[0017] A support member, which is installed inside the jacking plate;

[0018] A rocker, which is rotatably installed inside the support member;

[0019] A first roller and a second roller. The first roller is rotatably installed on one side of the top of the rocker towards the middle of the support member, and the second roller is rotatably installed on one side of the top of the rocker towards the side of the support member.

[0020] Another object of the present invention is to provide a latent lifting AGV cart, and the latent lifting AGV cart includes the above-mentioned lifting device.

[0021] The technical effects and advantages of the present invention:

[0022] The present invention utilizes the cooperation of the chassis, the jacking plate, the mounting top seat, the three lead screw assemblies and the driving assembly. The driving assembly can drive the jacking plate to rise through the three lead screw assemblies, thereby improving the stability of the jacking plate for lifting goods. Moreover, when the jacking plate lifts the goods, the rocker on the centering assembly rotates towards the middle, which can achieve efficient and accurate centering and improve the goods docking accuracy. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the internal structure of the jacking plate of the present invention in a top view.

[0025] Figure 3 It is a schematic diagram of the internal structure of the present invention in a front view.

[0026] Figure 4 It is a schematic diagram of the overall structure of the rocker of the present invention.

[0027] In the figure: 1, chassis; 2, lifting plate; 3, mounting top seat; 4, lead screw assembly; 41, lifting lead screw; 42, lead screw nut; 43, supporting seat; 5, drive assembly; 51, mounting bearing; 52, first drive gear; 53, connecting gear; 54, drive motor; 55, second drive gear; 6, centering assembly; 61, support member; 62, rocker; 63, first roller; 64, second roller; 7, corrugated sleeve; 8, mounting base; 9, sealing plate cover. Specific implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention provides a lifting device as Figures 1-4 shown, including a chassis 1. A lifting plate 2 is arranged at the top of the chassis 1. A mounting top seat 3 is installed at the bottom of the lifting plate 2. A mounting base 8 is installed inside the chassis 1. A lead screw assembly 4 is arranged between the mounting top seat 3 and the mounting base 8. A drive assembly 5 for driving the lead screw assembly 4 to move is arranged on the mounting top seat 3. The number of lead screw assemblies 4 between the mounting top seat 3 and the mounting base 8 is three groups, and the drive assembly 5 can drive the three groups of lead screw assemblies 4 to move synchronously, so that the three groups of lead screw assemblies 4 can drive the lifting plate 2 to move up and down synchronously. A centering assembly 6 is arranged at the top of the lifting plate 2. The centering assembly 6 is used in cooperation with the lifting plate 2. When the lifting plate 2 rises to support the square pipe, the centering assembly 6 can perform centering and limiting on the square pipe.

[0030] Further, the lead screw assembly 4 includes a lifting lead screw 41, a supporting seat 43, and a lead screw nut 42. The supporting seat 43 is installed at the bottom of the mounting top seat 3. The top of the outer wall of the lifting lead screw 41 is rotatably sleeved with the supporting seat 43. The outer wall of the lead screw nut 42 is fixedly connected to the mounting base 8. The outer wall of the lifting lead screw 41 is threadedly sleeved with the lead screw nut 42. Thus, when the lifting lead screw 41 rotates, the lifting lead screw 41 cooperates with the lead screw nut 42, and the lifting lead screw 41 can push the mounting top seat 3 and the lifting plate 2 to move up and down through the supporting seat 43.

[0031] Furthermore, the driving assembly 5 includes a mounting bearing 51, a first driving gear 52, a connecting gear 53 and a buckle. The first driving gear 52 is rotatably mounted on the top of the mounting top seat 3 through the mounting bearing 51. The connecting gear 53 is mounted on the top of the outer wall of the lifting screw 41 through the buckle. The three connecting gears 53 are meshed and connected with the first driving gear 52. A driving motor 54 is installed at the bottom of the mounting top seat 3. The output end of the driving motor 54 is transmission-connected with the second driving gear 55. The second driving gear 55 is meshed and connected with the first driving gear 52, so that the driving motor 54 drives the first driving gear 52 to rotate through the second driving gear 55, and the first driving gear 52 drives the three lifting screws 41 to rotate through the three connecting gears 53.

[0032] Specifically, a window matching the driving motor 54 is provided at the top of the mounting base 8, so that when the driving motor 54 drives the three lifting screws 41 to drive the lifting plate 2 and the mounting top seat 3 to move up and down, the driving motor 54 follows the mounting top seat 3 to move up and down, and the driving motor 54 can move up and down relative to the mounting base 8 through the window. A corrugated sleeve 7 is installed between the lifting plate 2 and the chassis 1. The corrugated sleeve 7 can seal the gap between the lifting plate 2 and the chassis 1 to prevent dust from entering the chassis 1 from the gap between the chassis 1 and the lifting plate 2. A sealing plate cover 9 is installed on the top of the lifting plate 2, and the sealing plate cover 9 is installed by means of internal bolts. The top of the sealing plate cover 9 is in the same plane as the top of the lifting plate 2, and by removing the sealing plate cover 9, the first driving gear 52, the connecting gear 53 and the second driving gear 55 on the top of the mounting top seat 3 can be directly inspected and repaired.

[0033] Furthermore, there are four centering components 6 on the top of the lifting plate 2, and they correspond to each other in pairs. The centering components 6 include a support member 61, a rocker 62, a first roller 63 and a second roller 64. The support member 61 is installed inside the lifting plate 2, and the rocker 62 is rotatably installed inside the support member 61. The two rockers 62 are rotatably connected to the support member 61 through an axle rod, and the two rockers 62 are symmetrically arranged. The first roller 63 is rotatably installed on the top of the rocker 62 toward the side of the middle of the support member 61, and the first roller 63 is rotatably installed on the top of the rocker 62 toward the middle of the support member 61. The second roller 64 is rotatably installed on the top of the rocker 62 toward the side of the support member 61, and the center of gravity of the rocker 62, the first roller 63 and the second roller 64 is located on the side of the shaft away from the center of the support member 61, so that when the rocker 62 is not subjected to external force, the two rockers 62 are in an unfolded state. When the lifting plate 2 lifts the square tube cargo, the bottom of the square tube squeezes the first roller 63, and the two rockers 62 rotate relative to each other, so that the two second rollers 64 on the two rockers 62 squeeze and limit the side of the square tube.

[0034] This embodiment provides a latent lifting AGV vehicle, and the latent lifting AGV vehicle includes the above-mentioned lifting device.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A lifting device, comprising a chassis (1), wherein a lifting plate (2) is arranged on the top of the chassis (1); It is characterized in that A mounting seat (3) is installed at the bottom of the lifting plate (2), a mounting base (8) is installed inside the chassis (1), a screw assembly (4) is arranged between the mounting seat (3) and the mounting base (8), a driving assembly (5) for driving the screw assembly (4) to move is arranged on the mounting seat (3), and a centering assembly (6) is arranged at the top of the lifting plate (2).

2. A lifting device according to claim 1, characterized in that: The screw rod assembly (4) comprises: A supporting seat (43), wherein the supporting seat (43) is installed at the bottom of the mounting top seat (3); A lifting screw (41), wherein the top of the outer wall of the lifting screw (41) is rotatably sleeved with a supporting seat (43); A screw nut (42), the outer wall of which is fixedly connected to the mounting base (8), and the outer wall of the lifting screw (41) is threadedly sleeved with the screw nut (42).

3. A lifting device according to claim 2, characterized in that: The driving assembly (5) comprises: A bearing (51) and a first driving gear (52) are installed, wherein the first driving gear (52) is rotatably installed on the top of the installation top seat (3) through the installation bearing (51); A connecting gear (53) and a buckle, wherein the connecting gear (53) is mounted on the top of the outer wall of the lifting screw (41) through the buckle, and the connecting gear (53) is meshedly connected with the first driving gear (52).

4. A lifting device according to claim 3, characterized in that: A driving motor (54) is installed at the bottom of the mounting top seat (3), and the output end of the driving motor (54) is transmission-connected to a second driving gear (55), and the second driving gear (55) is meshingly connected to the first driving gear (52).

5. A lifting device according to claim 4, characterized in that: A window matching the drive motor (54) is provided on the top of the mounting base (8), a corrugated sleeve (7) is installed between the jacking plate (2) and the chassis (1), and a sealing plate cover (9) is installed on the top of the jacking plate (2).

6. A lifting device according to claim 1, characterized in that: The centering assembly (6) comprises: A support member (61), wherein the support member (61) is installed inside the lifting plate (2); A rocker (62), wherein the rocker (62) is rotatably mounted inside the support member (61); A first roller (63) and a second roller (64), wherein the first roller (63) is rotatably mounted on a side of the top of the rocker (62) facing the middle of the support member (61), and the second roller (64) is rotatably mounted on a side of the top of the rocker (62) facing the side of the support member (61).

7. A hidden jacking AGV, characterized in that: The latent lifting AGV trolley includes the lifting device as described in any one of claims 1-6.

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