Low-height lifting platform and three-dimensional parking automatic guided vehicle
Technical Field
The utility model relates to a low high lift platform and sky parking automated guided vehicle.
Background
Along with present more and more parking places adopt AGV to do short distance transportation in the field, AGV's application is wider and wider, for example AGV is when haulage vehicle, lift the platform and need stretch into vehicle bottom lifting vehicle, but because the space of vehicle bottom is very limited, and lifting mechanism's part is more complicated, it is great to occupy vertical height, consequently, how to reduce the height of lifting platform, the stationarity that simultaneously can also guarantee that AGV supports is the problem of treating to solve urgently, fork truck is current thinnest lifting mechanism among the prior art, its minimum lifting height is exactly the thickness of fork truck arm, the fork truck arm can get into under the goods that liftoff several centimetres are high and realize lifting, but fork truck is subject to fork truck arm length and structural style, can't lift the transportation to the goods of longer size.
SUMMERY OF THE UTILITY MODEL
The utility model provides an above-mentioned not enough and provide a low high lift platform and sky parking automated guided vehicle that has reduced whole lifting platform height.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solution:
the utility model provides a low-height lifting platform, includes upper mounting plate, lower platform and sets up the scissors fork formula lifting mechanism between upper mounting plate and lower platform, during initial condition, be equipped with the interval down between platform and the ground, when lifting the first stage, the upper mounting plate is as supporting platform, and scissors fork formula lifting mechanism promotes down the platform and descends and ground contact, and when lifting the second stage, the lower platform supports subaerial as supporting platform, promotes the upper mounting plate and rises.
The structure creates a way for the working mode of the lifting platform, abandons the traditional thought that the prior lifting platform takes the lower platform as a supporting platform and takes the upper platform as a movable platform to lift, and divides the lifting into two stages, wherein the upper platform is taken as the supporting platform during the first lifting stage, firstly pushes the lower platform to descend to the ground, then the lower platform is taken as the supporting platform to push the upper platform to lift to the highest height, on one hand, when the device is used for the AGV trolley, the device can further utilize the distance between the lower platform and the ground as an installation space so as to reduce the height of the whole lifting platform, on the other hand, when the first lifting stage is carried out, the lower platform is not carried in the process of moving to the ground, and the oil cylinder has a small lifting angle at the beginning of lifting, so that the force cannot be exerted, at this moment, the lifting is not carried out at the beginning, the upper-layer scissor rod and the lower-layer scissor rod are ensured to be easily separated, so that the oil cylinder can quickly form the jacking angle, the lower platform can generate power enough for pushing the upper load of the upper platform to rise after being supported to the ground, the stable jacking of the scissor lifting mechanism can be still ensured even under the condition that the jacking angle of the scissor lifting mechanism is smaller, and the support is provided for reducing the height of the whole lifting platform.
In this embodiment, the scissor lift mechanism retracts into the upper platform or the lower platform or into a groove formed in the opposing surfaces of the upper platform and the lower platform in the initial state. Therefore, the scissor type lifting mechanism cannot extend out of the lifting platform, the height of the lifting platform is occupied, and the height of the lifting platform is ensured to be low.
In this embodiment, be equipped with many sets of scissors fork lifting mechanism along length direction between upper mounting plate and the lower platform, every set of scissors fork lifting mechanism shares same upper mounting plate, and every set of scissors fork lifting mechanism is equipped with independent lower platform, goes up and down the weight of load as required, sets up many sets of scissors fork lifting mechanism, guarantees the stationarity of lifting. The preferred scheme is that two sets of scissor-type lifting mechanisms are arranged between the upper platform and the lower platform along the length direction.
In this embodiment, cut fork lifting mechanism and include upper scissors fork pole, lower floor's scissors fork pole, hydro-cylinder and swing arm, the one end of hydro-cylinder articulates on platform down, and the other end articulates in one of swing arm, the middle part of swing arm articulates on upper scissors fork pole, the other end of swing arm is the free end, the position that corresponds the swing arm free end on the platform down is fixed with the baffle, during initial state, the free end of swing arm supports on the baffle of platform down, when lifting the first stage, and the hydro-cylinder promotes the swing arm, and the swing arm is rotatory around the pin joint, and the rotatory baffle that promotes of swing arm free end supports and presses the platform down for upper mounting plate and lower platform separation, install the gyro wheel on the free end of swing arm. When the upper platform is at the lowest position, the oil cylinder is almost in a horizontal state and cannot output enough lifting force vertically upwards, and the free end of the swing rod is used as auxiliary force for pushing the lower platform to be separated from the upper platform in the first lifting stage, so that the upper platform and the lower platform are separated more reliably.
The utility model discloses another embodiment:
a three-dimensional parking automated guided vehicle comprising the low-height lifting platform of the above embodiment as a vehicle lifting mechanism of the three-dimensional parking automated guided vehicle.
In this embodiment, the upper mounting plate of low-height lift platform is as the lift platform that lifts the car, install the centre gripping arm that is used for centre gripping car wheel on the upper mounting plate, the passive walking wheel that is used for supporting the walking is installed to the upper mounting plate bottom, the platform is fixed on the bottom plate down, the bottom plate passes through the hinge and is connected with the drive platform of sky parking automated guided vehicle, the hinge makes bottom plate and drive platform can form a difference in height at the direction of height, the drive platform bottom is equipped with the initiative walking wheel, and during initial condition, the upper mounting plate supports subaerial through passive walking wheel, drive platform supports subaerial through initiative walking wheel, be equipped with the interval between bottom plate and the ground.
In this embodiment, the active road wheel is a steering wheel.
To sum up, adopt above-mentioned embodiment the utility model discloses opened up a road in addition to lift platform's working method, abandoned current lift platform regard lower platform as supporting platform, regard upper platform as the traditional thought that the activity platform lifted, and regard upper platform as supporting platform at the beginning of lifting, promote earlier that lower platform descends to ground, lower platform supports subaerial back, regard lower platform as supporting platform again, promote upper platform and lift, up to the maximum height, this lift platform application is on sky parking automated guided vehicle after, at the upper platform installation gyro wheel of scissor type lifting mechanism, connecting drive mechanism at lower platform, thereby realize lift platform's free movement, reduced the height of whole lifting platform.
Drawings
Fig. 1 is a first perspective view of the present invention.
Fig. 2 is a second perspective view of the present invention.
Fig. 3 is a schematic diagram of embodiment 3 of the present invention.
Fig. 4 is a schematic diagram of embodiment 4 of the present invention.
In the attached drawings, the device comprises an upper platform 1, an upper platform 11, a clamping arm 12, a passive travelling wheel 2, a lower platform 21, a baffle plate 3, a scissor-fork type lifting mechanism 31, an upper layer scissor rod 32, a lower layer scissor rod 33, an oil cylinder 34, a swing arm 35, a roller 4, a driving platform 41, a steering wheel 5, a bottom plate 6 and a hinge.
Detailed Description
For a better understanding of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the embodiments, however, the present invention is not limited thereto, and the protection scope of the present invention also relates to the equivalent technical means that can be conceived by those skilled in the art according to the inventive concept.
Example 1:
as shown in fig. 1 and 2, a low-height lifting platform comprises an upper platform 1, a lower platform 2 and scissor-type lifting mechanisms 3 arranged between the upper platform 1 and the lower platform 2, wherein the scissor-type lifting mechanisms 3 are contracted in a groove at the bottom of the upper platform 1 or in a groove at the top of the lower platform or in a groove formed by opposite surfaces of the upper platform and the lower platform in an initial state, two sets of scissor-type lifting mechanisms 3 are arranged between the upper platform 1 and the lower platform 2 along the length direction, each set of scissor-type lifting mechanisms 3 share the same upper platform, each set of scissor-type lifting mechanisms is provided with an independent lower platform 2, each set of scissor-type lifting mechanism 3 comprises an upper scissor-type rod 31, a lower scissor-type rod 32, an oil cylinder 33 and a swing arm 34, one end of the oil cylinder 33 is hinged on the lower platform, the other end of the oil cylinder 33 is hinged on one end of the swing arm 34, the middle part of the swing arm 34 is hinged on the, the other end of swing arm 34 is the free end, install gyro wheel 35 on the free end of swing arm, the position that corresponds the swing arm free end on platform 2 down is fixed with baffle 21, during initial state, the free end of swing arm 34 supports on platform 2's baffle 21 down, during initial state, be equipped with the interval between platform 2 and the ground down, when lifting the first stage, upper mounting plate 1 is as supporting platform, and hydro-cylinder 33 promotes swing arm 34, and swing arm 34 is rotatory around the pin joint, and the rotatory baffle 21 that promotes of swing arm 34 free end supports and presses lower mounting plate 2 down for upper mounting plate and lower mounting plate separation, and platform 2 descends and ground contact under hydro-cylinder 33 further promotes, and when lifting the second stage, lower mounting plate 2 supports subaerial as supporting platform, promotes the upper mounting plate and lifts.
When the upper platform 1 is at the lowest position, the oil cylinder is almost in a horizontal state, and cannot output enough lifting force vertically upwards. When the oil cylinder is lifted, the free end of the swing arm swings downwards around the middle shaft to push the upper-layer shear fork rod and the lower-layer shear fork rod to be separated by a small distance, and the small separation is realized, so that the oil cylinder has a small angle, and power enough for pushing the upper load of the platform to rise is generated. When the upper platform descends and approaches the lower platform, the free end of the swing arm swings reversely under the pulling of the oil cylinder, so that the upper platform and the lower platform are closer.
Example 2:
a three-dimensional parking automatic guided vehicle comprises a low-height lifting platform in the embodiment, the low-height lifting platform is used as a vehicle lifting mechanism of the three-dimensional parking automatic guided vehicle, an upper platform of the low-height lifting platform is used as a lifting platform for lifting a vehicle, a clamping arm 11 for clamping wheels of the vehicle is mounted on the upper platform 1, a driven walking wheel 12 for supporting the upper platform 1 to walk is mounted at the bottom of the upper platform 1, the driven walking wheel adopts a universal wheel in the embodiment, a lower platform 2 is fixed on a bottom plate 5, the bottom plate 5 is connected with a driving platform 4 of the three-dimensional parking automatic guided vehicle through a hinge 6, the hinge 6 enables the bottom plate and the driving platform to form a height difference in the height direction, a driving battery, a control system and the like are arranged in the driving platform 4, and a driving walking wheel for providing power through the battery is arranged at the bottom of the, in this embodiment, the active walking wheel is a steering wheel 41, and in an initial state, the upper platform 1 is supported on the ground through the passive walking wheel 12, the driving platform 4 is supported on the ground through the steering wheel 41, a space is arranged between the bottom plate 5 and the ground, and the space is formed by the action of the hinge 6.
The invention relates to a three-dimensional parking automatic guided vehicle as a transport vehicle, which is used for a three-dimensional parking facility and has the working principle that:
in the initial state, the lower platform 2 is higher than the ground by a safe distance, the clamping arm is contracted in the upper platform 1, and the whole device can freely move on the ground. The automatic guided vehicle runs to the bottom of the vehicle under the control of the sensor and the control system, the clamping arms 11 are opened, and four wheels of the vehicle are clamped off the ground through the clamping arms 11. Subsequently, when the vehicle is transported to the destination, the gripping arm 11 is released, the vehicle is placed on the ground, or the lifting of the upper platform 1 is continued to the target height. After the lifting is finished, the upper platform 1 descends until the driven travelling wheels on the upper platform 1 contact the ground. The scissor lift mechanism 3 continues to retract, causing the lower platform 2 to rise until stopped at a maximum by the catch. At the moment, the automatic guided vehicle can move freely, leaves the parking space and starts the next working cycle.
Based on the scissors mechanism, the utility model discloses can also have multiple change. In the embodiment 1 and the embodiment 2, two lifting platforms are combined in parallel, and each lifting platform is formed by connecting an upper layer of scissor rod and a lower layer of scissor rod in series. In practical application, also can adopt the combination of multiple parallelly connected and series connection, perhaps the series-parallel combination of equidirectional not, combine the utility model discloses a drive and clamping device satisfy more extensive application demand.
Example 3: as shown in fig. 3, in the lifting platform of this embodiment, two scissor rods are connected in series in front and back to form a single lifting device.
Example 4: as shown in fig. 4, the lifting platform of the present embodiment uses a single scissors mechanism to achieve the purpose of transporting and lifting the vehicle.
The terms of upper, lower, left and right are used for convenience of description, are not absolute terms, and can be adjusted in practical application without damaging the protection rights of the invention. The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.