CN215322095U

CN215322095U - Vehicle lifting device for power conversion station

Info

Publication number: CN215322095U
Application number: CN202121827274.XU
Authority: CN
Inventors: 姬全阳; 范方祝
Original assignee: Kunshan Siwopu Intelligent Equipment Co ltd
Current assignee: Kunshan Siwopu Intelligent Equipment Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-12-28
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a vehicle lifting device for a power station, which comprises a lifting platform, a base and a pair of scissor arm sets, wherein the scissor arm sets are vertically and symmetrically arranged on two sides between the lifting platform and the base; the upper end of the inner scissor fork arm is arranged on the lifting platform in a sliding manner, and the lower end of the inner scissor fork arm is arranged on the base in a rotatable manner; the upper end of the outer scissor fork arm is rotatably arranged on the lifting platform, the lower end of the outer scissor fork arm is connected with a screw rod transmission mechanism, the screw rod transmission mechanism is connected with a driving mechanism arranged on the base, and the driving mechanism can drive the screw rod transmission mechanism to work, so that the lower end of the outer scissor fork arm driven by the screw rod transmission mechanism is relatively close to or far away from the lower end of the inner scissor fork arm. According to the lifting platform, the cross angle between the outer scissor arm and the inner scissor arm is changed through the screw rod transmission mechanism, so that the lifting of the lifting platform is controlled, and the lifting and the resetting of a vehicle are further realized.

Description

Vehicle lifting device for power conversion station

Technical Field

The utility model relates to the technical field of power exchanging stations, in particular to a vehicle lifting device for a power exchanging station and the power exchanging station comprising the vehicle lifting device.

Background

With social development and technological progress, new energy automobiles are increasingly widely used, and how to provide quick and effective electricity supply for vehicles with insufficient electricity becomes a very much concerned problem for technicians.

The power supply mode of the power battery of the new energy automobile is generally divided into two modes of inserting and charging with the automobile and replacing the battery, and the current mainstream is to adopt a battery replacement scheme. The battery replacing station is a distribution facility for replacing batteries for electric vehicles, generally comprises a parking platform, and when a battery car runs to the parking platform, the battery car needs to be lifted to a proper height by a lifting device, so that the power battery suspended on a vehicle chassis is convenient to detach. The existing lifting device mostly adopts a hydraulic lifting platform, hydraulic transmission takes liquid as a working medium, leakage cannot be avoided in the relative motion of hydraulic elements, the working reliability is inferior to that of electric power and mechanical transmission, and the use and the maintenance are inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to provide a vehicle lifting device for a power conversion station, which has the characteristics of smooth lifting, safety and reliability.

In order to achieve the above object, the present invention employs the following:

a vehicle lift device for a power conversion station, comprising:

the upper end face of the lifting platform is arranged in parallel with the horizontal line;

the base is positioned below the lifting platform and is parallel to the lifting platform;

the shearing fork arm group is vertically and symmetrically arranged on two sides between the lifting platform and the base, and comprises an inner shearing fork arm and an outer shearing fork arm, and the middle parts of the inner shearing fork arm and the outer shearing fork arm are rotationally connected together through a connecting pin shaft to form a shearing fork structure; the upper end of the inner scissor fork arm is arranged on the lifting platform in a sliding manner, and the lower end of the inner scissor fork arm is arranged on the base in a rotatable manner; the upper end of the outer scissor fork arm is rotatably arranged on the lifting platform, the lower end of the outer scissor fork arm is connected with a screw rod transmission mechanism arranged on the base, the screw rod transmission mechanism is connected with a driving mechanism arranged on the base, and the driving mechanism can drive the screw rod transmission mechanism to work, so that the lower end of the outer scissor fork arm is driven by the screw rod transmission mechanism to be relatively close to or far away from the lower end of the inner scissor fork arm.

Preferably, a synchronizing bar is arranged between the lower ends of the left and right outer scissor arms.

Preferably, the screw transmission mechanism includes a ball screw, a ball nut, and a ball nut seat, the ball screw is disposed in a direction perpendicular to the synchronizing rod, the ball screw is connected to the output end of the driving mechanism, and the ball nut seat is connected to the synchronizing rod.

Preferably, the arrangement direction of the driving mechanism is parallel to the ball screw, and the output end of the driving mechanism is in transmission connection with the roller screw through a synchronous belt.

Preferably, the drive mechanism is a reduction motor.

Preferably, the lower end of the outer scissor fork arm is provided with a sliding block, the base is respectively provided with two sliding rails parallel to the ball screw, and the sliding block is arranged in the sliding rails and can slide left and right along the length direction of the sliding rails.

By adopting the technical scheme, the vehicle lifting device and the battery replacement station comprising the same have the following beneficial effects:

the cross angle between the outer scissor fork arm and the inner scissor fork arm is changed through the lead screw transmission mechanism, so that the lifting of the lifting platform is controlled, and the lifting and resetting of the vehicle are further realized. In addition, compared with a hydraulic element, the screw rod transmission mechanism has a wider application range and is easy to ensure the manufacturing precision. In the process of lifting the vehicle by the lifting device, the lower end of the outer scissor arm approaches to the lower end of the inner scissor arm, the outer scissor arm approaches to the inner scissor arm, and the lifting height of the lifting platform is higher; in the process of resetting the vehicle, the lower end of the outer shearing fork arm is gradually far away from the lower end of the inner shearing fork arm, and the farther the outer shearing fork arm is away from the inner shearing fork arm, the lower the descending height of the lifting platform is.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a vehicle lifting device for a power swapping station according to an embodiment of the utility model;

FIG. 2 is a schematic illustration of the engagement of the drive mechanism and the lead screw drive mechanism in an embodiment of the present invention;

in the figures, the various reference numbers are:

1-lifting platform, 2-base, 3-scissor fork arm group, 4-lead screw transmission mechanism, 5-driving mechanism, 6-slide block, 7-slide rail, 31-inner scissor fork arm, 32-outer scissor fork arm, 33-connecting pin shaft, 34-synchronizing rod, 41-ball screw, 42-ball nut, 43-ball nut seat and 51-synchronous belt.

Detailed Description

In order to more clearly illustrate the utility model, the utility model is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the utility model.

As shown in fig. 1 and 2, an embodiment of the present invention provides a vehicle lifting device for a power swapping station, including:

the vehicle lifting device is arranged on a parking platform of the battery replacing station to lift an electric vehicle parked on the parking platform, and the lifting platform lifts the electric vehicle to a specified height in the battery replacing process;

the base 2 is positioned below the lifting platform 1 and is parallel to the lifting platform 1, and the vehicle lifting device is connected with a parking platform of the power exchanging station through the base;

the scissor arm group 3 is vertically and symmetrically arranged on two sides between the lifting platform 1 and the base 2, the scissor arm group 3 comprises an inner scissor arm 31 and an outer scissor arm 32, and the middle parts of the inner scissor arm 31 and the outer scissor arm 32 are rotationally connected together through a connecting pin shaft 33 to form a scissor structure; the upper end of the inner scissor fork arm 31 is slidably arranged on the lifting platform 1, and the lower end is rotatably arranged on the base 2; the upper end of the outer scissor fork arm 32 is rotatably arranged on the lifting platform 1, the lower end of the outer scissor fork arm is connected with a screw rod transmission mechanism 4 arranged on the base 2, the screw rod transmission mechanism 4 is connected with a driving mechanism 5 arranged on the base 2, and the driving mechanism 5 can drive the screw rod transmission mechanism 4 to work, so that the screw rod transmission mechanism 4 drives the lower end of the outer scissor fork arm 32 to be relatively close to or far away from the lower end of the inner scissor fork arm 31.

According to the lifting platform, the cross angle between the outer scissor fork arm and the inner scissor fork arm is changed through the lead screw transmission mechanism, so that the lifting of the lifting platform is controlled, and the lifting and the resetting of a vehicle are further realized.

Specifically, in the process of lifting the vehicle, the lower end of the outer scissor arm is close to the lower end of the inner scissor arm, the outer scissor arm is closer to the inner scissor arm, and the lifting height of the lifting platform is higher; in the process of resetting the vehicle, the lower end of the outer shearing fork arm is gradually far away from the lower end of the inner shearing fork arm, and the farther the outer shearing fork arm is away from the inner shearing fork arm, the lower the descending height of the lifting platform is.

In an alternative embodiment, in order to improve the synchronization between the pair of scissor arm sets on both sides between the lifting platform and the base, and thus to ensure the stability of the lifting platform during lifting, a synchronization rod 34 is provided between the lower ends of the left and right outer scissor arms 32.

In an alternative embodiment, the screw transmission mechanism 4 includes a ball screw 41, a ball nut 42, and a ball nut holder 43, the ball screw 41 is disposed in a direction perpendicular to the synchronizing rod 34, the ball screw 41 is connected to the output end of the driving mechanism 5, and the ball nut holder 43 is connected to the synchronizing rod 34. Because the spare part among the lead screw drive mechanism is the standard part mostly, its range of application is wide, and the precision can be guaranteed, and its manufacturing accuracy is high, and transmission effect is good, consequently uses lead screw drive mechanism and can improve vehicle lifting device's stability and life greatly in this embodiment, has reduced vehicle lifting device's fault rate.

Since the parking platform of the power station is limited in space, in order to save space, the output end of the driving mechanism is not connected to the ball screw, but the arrangement direction of the driving mechanism 5 is parallel to the ball screw 41, that is, the driving mechanism 5 is arranged side by side with the ball screw 41, and the output end of the driving mechanism 5 is in transmission connection with the roller screw 41 through the synchronous belt 51.

The drive mechanism 5 in the present embodiment is a reduction motor. Of course, any other type of motor may be used as long as the motor can provide the driving force, such as a synchronous motor, a brake motor, and the like.

In an alternative embodiment, a sliding block 6 is disposed at the lower end of the outer scissor arm 32, two sliding rails 7 parallel to the ball screws 41 are disposed on the base 2, and the sliding block 6 is disposed in the sliding rails 7 and can slide left and right along the length direction of the sliding rails 7. The combination of the sliding block and the sliding rail can play a role in guiding when the outer scissor arm moves left and right.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims

1. A vehicle lift device for a power station, comprising:

2. The vehicle lifting device for a power station as recited in claim 1, wherein a synchronization rod is provided between the lower ends of the left and right outer scissor arms.

3. The vehicle lifting device for a power station as recited in claim 2, wherein the screw transmission mechanism comprises a ball screw, a ball nut, and a ball nut seat, the ball screw is arranged in a direction perpendicular to the synchronizing rod, the ball screw is connected with the output end of the driving mechanism, and the ball nut seat is connected with the synchronizing rod.

4. The vehicle lifting device for the power swapping station as claimed in claim 3, wherein the arrangement direction of the driving mechanism is parallel to that of the ball screw, and the output end of the driving mechanism is in transmission connection with the roller screw through a synchronous belt.

5. The vehicle lifting device for a swap station in accordance with claim 4, wherein the drive mechanism is a reduction motor.

6. The vehicle lifting device for the power station as claimed in claim 4, wherein a sliding block is arranged at the lower end of the outer scissor arm, two sliding rails parallel to the ball screw are respectively arranged on the base, and the sliding block is arranged in the sliding rails and can slide left and right along the length direction of the sliding rails.