CN219567430U - Lifting device and transport vehicle thereof - Google Patents

Abstract

The utility model discloses a lifting device and a carrying vehicle thereof, which comprise a plurality of groups of scissor fork mechanisms which are arranged in parallel and have synchronous movement, wherein the lower ends of the scissor fork mechanisms are connected with a vehicle body and are connected with a power device, and the upper ends of the scissor fork mechanisms are connected with a rotating platform with a self-rotation function so as to drive the rotating platform to lift; wherein: each group of scissors fork mechanism comprises a first connecting rod and a second connecting rod, the middle parts of the first connecting rod and the second connecting rod are mutually hinged, one end of the first connecting rod is hinged with the vehicle body, the other end of the first connecting rod is hinged with a first sliding block, the first sliding block is arranged on a first sliding rail at the bottom of the rotary platform in a sliding connection mode, and one end of the second connecting rod is connected with a driving rod. According to the utility model, the scissor fork mechanisms formed by the connecting rods are arranged between the vehicle body and the rotating platform, and the linked scissor fork mechanisms synchronously move under the action of the screw rod device, so that the rotating platform at the upper part is driven to lift finally, the scissor fork structure can realize expansion and contraction, and the device has the advantages of small and stable structure.

Description

Lifting device and transport vehicle thereof

Technical Field

The utility model relates to the technical field of transportation vehicle equipment, in particular to a lifting device and a transportation vehicle thereof.

Background

Chinese patent publication No.: CN215798309U discloses an AGV lifting mechanism and an AGV trolley with the same. AGV lifting mechanism includes: the lifting piece is provided with a strip hole; the output end of the driving piece is provided with a transmission shaft in a matched manner, the transmission shaft is fixedly provided with a follower, the follower and the transmission shaft are eccentrically arranged, and the follower is in butt fit with part of the inner wall of the strip hole; one end of the guiding expansion piece is fixedly installed with the lifting piece, and the expansion direction of the guiding expansion piece is perpendicular to the length direction of the strip hole. However, the following drawbacks still exist in the actual use process: the device drives the eccentric wheels to rotate through the chain wheels and the chains, and realizes the lifting of the tray at the upper part under the action of the strip holes, so that the driving device has complex structure, high abrasion and poor stability.

Disclosure of Invention

The present utility model is directed to a lifting device and a vehicle for carrying the same, which solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the lifting device comprises a plurality of groups of scissor fork mechanisms which are arranged in parallel and have synchronous movement, wherein the lower ends of the scissor fork mechanisms are connected with a vehicle body and are connected with a power device, and the upper ends of the scissor fork mechanisms are connected with a rotating platform with a self-rotation function so as to drive the rotating platform to lift;

wherein: each group of scissors fork mechanism comprises a first connecting rod and a second connecting rod, the middle parts of the first connecting rod and the second connecting rod are mutually hinged, one end of the first connecting rod is hinged with a vehicle body, the other end of the first connecting rod is hinged with a first sliding block, the first sliding block is slidably connected with a first sliding rail arranged at the bottom of a rotary platform, one end of the second connecting rod is connected with a driving rod, the driving rod is connected with a power device so that the second connecting rods synchronously move, a second sliding block is arranged on the driving rod, the second sliding block is slidably arranged on a second sliding rail arranged on the vehicle body, and the other end of the second connecting rod is hinged with the rotary platform.

Preferably, the power device comprises a screw rod arranged on the vehicle body through a mounting seat, a screw rod nut is arranged on the screw rod, the screw rod nut is connected with the driving rod in a clamping mode through a connecting seat, one end of the screw rod is connected with a power output end of the first speed reducer, and the power input end of the first speed reducer is connected with the first motor.

Preferably, the first speed reducer is a 90-degree angle reversing speed reducer.

Preferably, each connecting point of the first connecting rod and the second connecting rod is provided with a connecting piece, the connecting piece comprises an ear plate pin shaft arranged in the connecting hole, a sliding bearing is sleeved on the ear plate pin shaft, and the end part of the ear plate pin shaft is provided with a copper ring.

Preferably, the automatic lifting device further comprises a limiting device, wherein the limiting device comprises a balance seat vertically arranged on the vehicle body, a third sliding rail is arranged on the balance seat in the vertical direction, a third sliding block is arranged on the third sliding rail in a sliding mode, and the third sliding block is connected with a connecting block connected with the bottom of the rotary platform.

Preferably, a second motor is arranged at the bottom of the rotary platform and is connected with the input end of a second speed reducer, the output end of the second speed reducer is meshed with a large gear ring on the rotary support to drive the rotary support to rotate, and a tray is arranged on the rotary support.

The utility model also provides a carrying vehicle which comprises the lifting device.

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

according to the utility model, the scissor fork mechanisms formed by the connecting rods are arranged between the vehicle body and the rotating platform, and are linked to synchronously move under the action of the screw rod device, so that the rotating platform at the upper part is driven to lift finally, the scissor fork structure can stretch out and draw back, the structure is compact and stable, and meanwhile, the screw rod transmission has the characteristics of high transmission efficiency, small friction loss, high transmission precision, stable operation and capability of providing large moment.

Drawings

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

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic view of a scissors fork mechanism of the present utility model;

FIG. 4 is a schematic diagram of a power plant of the present utility model;

FIG. 5 is a cross-sectional view taken in the direction F-F of FIG. 4;

FIG. 6 is a schematic view of a limiting device according to the present utility model;

FIG. 7 is a schematic view of a connector structure according to the present utility model;

FIG. 8 is a schematic diagram of a front structure of a rotary platform according to the present utility model;

FIG. 9 is a schematic view of the bottom surface structure of the rotary platform according to the present utility model;

FIG. 10 is a schematic view of the elevator apparatus of the present utility model installed on an AGV;

in the figure: the device comprises a vehicle body 1, a scissors fork mechanism 2, a first connecting rod 21, a second connecting rod 22, a first sliding block 23, a first sliding rail 24, a driving rod 25, a second sliding block 26, a second sliding rail 27, a power device 3, a mounting seat 31, a lead screw 32, a lead screw nut 33, a connecting seat 34, a first speed reducer 35, a first motor 36, a rotary platform 4, a second motor 41, a second speed reducer 42, a rotary support 43, a connecting piece 5, a lug plate pin shaft 51, a sliding bearing 52, a copper ring 53, a limiting device 6, a balance seat 61, a third sliding rail 62, a third sliding block 63, a connecting block 64 and a tray 7.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-10, the present utility model provides a technical solution:

the utility model provides a elevating gear, includes that the multiunit that sets up side by side has synchronous motion's scissors fork mechanism 2, scissors fork mechanism 2 lower extreme and automobile body 1 swing joint to be connected with power device 3, its upper end swing joint has rotation platform 4 of rotation function, in order to realize driving rotation platform 4 to lift, in the technical scheme of this embodiment: the scissors fork mechanism 2 is symmetrically provided with two groups, and the scissors fork mechanism 2 can realize expansion and contraction and has the advantages of small and stable structure;

wherein: each group of scissor fork mechanism 2 comprises a first connecting rod 21 and a second connecting rod 22, the middle parts of the first connecting rod 21 and the second connecting rod 22 are mutually hinged, the first connecting rod 21 is of a hollow structure formed by splicing two connecting plates, and the second connecting rod 22 passes through the hollow structure of the first connecting rod 21 and is hinged through a connecting piece 5; the lower end of the first connecting rod 21 is hinged with the vehicle body 1 through a connecting plate, the upper end of the first connecting rod is hinged with a first sliding block 23, the first sliding block 23 is slidably connected with a first sliding rail 24 positioned at the bottom of the rotary platform 4, one end of the second connecting rod 22 is connected with a driving rod 25, the driving rod 25 is connected with the power device 3 so as to enable the second connecting rods 22 at two sides to synchronously move, two ends of the driving rod 25 are provided with second sliding blocks 26, the second sliding blocks 26 are slidably arranged on a second sliding rail 27 on the vehicle body 1, and the other end of the second connecting rod 22 is hinged with the rotary platform 4;

the power device 3 is arranged between the two groups of scissor fork mechanisms 2 and is positioned at the lower part of the rotary platform 4, and the arrangement has the advantages that: the space is fully utilized, so that the structure of the whole device is more compact; the power device 3 comprises a screw rod 32 arranged on the vehicle body 1 through two groups of mounting seats 31, a screw rod nut 33 is fixedly arranged on the screw rod 32, the screw rod nut 33 is connected with the driving rod 25 through a connecting seat 34, a clamping groove is formed in the connecting seat 34, the connecting seat 34 is clamped in the middle of the driving rod 25 through the clamping groove, one end of the screw rod 32 is connected with a power output end of a first speed reducer 35, a power input end of the first speed reducer 35 is connected with a first motor 36, and the first speed reducer 35 is arranged on the vehicle body 1 through the connecting seat; the first motor 36 drives the first speed reducer 35 to rotate, the first speed reducer 35 links the screw rod 32 to rotate, and then the linked screw rod nut 33 reciprocates along the direction of the screw rod 32, and under the action of the driving rod 25, the scissor fork mechanisms 2 on two sides are driven to move, and finally the rotating platform 4 on the upper part is driven to lift; the screw rod transmission has the characteristics of high transmission efficiency, small friction loss, high transmission precision, stable operation and capability of providing large torque; the first speed reducer 35 adopts a 90-degree angle reversing speed reducer, and the motor is arranged below the rotary platform 4 and close to the central hole by adopting the 90-degree angle reversing speed reducer, so that the space of the part is fully utilized, the heat dissipation effect of the motor is faster, and the maintenance is facilitated;

the connecting piece 5 is arranged on each connecting point of the first connecting rod 21 and the second connecting rod 22, the connecting piece 5 comprises an ear plate pin shaft 51 arranged in the connecting hole, a sliding bearing 52 is sleeved on the ear plate pin shaft 51, and a copper ring 53 is arranged at the end part of the ear plate pin shaft 51; the arrangement of the connecting piece 5 can reduce the abrasion of the connecting point and prolong the service life of each part;

because of the eccentricity and placement deviation of the goods, uneven load distribution on the tray 7 can be caused, or jolt caused by uneven load distribution of the tray 7 can be caused due to acceleration and deceleration and uneven road surface, the sliding bearing 52 in the connecting piece 5 is increased to bear larger axial force, so that friction force is increased, abrasion is increased, and stability is reduced; therefore, the technical scheme of the utility model also comprises a limiting device 6, wherein the limiting device 6 comprises a balance seat 61 vertically arranged on the vehicle body 1, two groups of third slide rails 62 are symmetrically arranged on the balance seat 61 in the vertical direction, a third slide block 63 is arranged on the third slide rail 62 in a sliding manner, and the third slide block 63 is connected with a connecting block 64 connected with the bottom of the rotary platform 4;

the bottom of the rotary platform 4 is provided with a second motor 41, the second motor 41 is connected with the input end of a second speed reducer 42, the output end of the second speed reducer 42 is meshed with a large gear ring on the rotary support 43 to drive the rotary support 43 to rotate, and the rotary support 43 is provided with a tray 7.

The utility model also provides a carrying vehicle, in particular to an AGV, which comprises the lifting device.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A lifting device, characterized in that: the automatic lifting device comprises a plurality of groups of scissor fork mechanisms (2) which are arranged in parallel and have synchronous movement, wherein the lower ends of the scissor fork mechanisms (2) are connected with a vehicle body (1) and are connected with a power device (3), and the upper ends of the scissor fork mechanisms are connected with a rotating platform (4) with a self-rotation function so as to drive the rotating platform (4) to lift;

wherein: each group of scissors fork mechanism (2) comprises a first connecting rod (21) and a second connecting rod (22) which are mutually hinged in the middle, one end of the first connecting rod (21) is hinged with a vehicle body (1), the other end of the first connecting rod is hinged with a first sliding block (23), the first sliding block (23) is slidably connected with a first sliding rail (24) arranged at the bottom of a rotary platform (4), one end of the second connecting rod (22) is connected with a driving rod (25), the driving rod (25) is connected with a power device (3) so that each second connecting rod (22) synchronously moves, a second sliding block (26) is arranged on the driving rod (25), and the other end of the second connecting rod (22) is hinged with the rotary platform (4).

2. A lifting device according to claim 1, wherein: the power device (3) comprises a screw rod (32) arranged on the vehicle body (1) through a mounting seat (31), a screw rod nut (33) is arranged on the screw rod (32), the screw rod nut (33) is connected with a driving rod (25) in a clamping mode through a connecting seat (34), one end of the screw rod (32) is connected with a power output end of a first speed reducer (35), and the power input end of the first speed reducer (35) is connected with a first motor (36).

3. A lifting device according to claim 2, wherein: the first speed reducer (35) is a 90-degree angle reversing speed reducer.

4. A lifting device according to claim 1, wherein: the connecting piece (5) is arranged on each connecting point of the first connecting rod (21) and the second connecting rod (22), the connecting piece (5) comprises an ear plate pin shaft (51) arranged in a connecting hole, a sliding bearing (52) is sleeved on the ear plate pin shaft (51), and a copper ring (53) is arranged at the end part of the ear plate pin shaft (51).

5. A lifting device according to any one of claims 1-4, wherein: still include stop device (6), stop device (6) are including vertical balancing seat (61) of setting on automobile body (1), be provided with third slide rail (62) on balancing seat (61) vertical direction, it is provided with third slider (63) to slide on third slide rail (62), connecting block (64) that third slider (63) are connected with rotary platform (4) bottom.

6. A lifting device according to claim 5, wherein: the bottom of the rotary platform (4) is provided with a second motor (41), the second motor (41) is connected with the input end of a second speed reducer (42), the output end of the second speed reducer (42) is meshed with a large gear ring on a rotary support (43) to drive the rotary support (43) to rotate, and a tray (7) is arranged on the rotary support (43).

7. A carrier vehicle, characterized in that: a lifting device comprising the device of any one of claims 1-6.