Liftable driving change gear device

Abstract

The utility model relates to the technical field of electric automobile front end battery replacement, and discloses a liftable change gear device which comprises a longitudinal fixing plate and a transverse fixing plate. A longitudinal fixing plate is arranged at the lower part of the transverse fixing plate; the bottom of the telescopic device penetrates through the transverse fixing plate and is connected with the longitudinal fixing plate, and the telescopic device drives the longitudinal fixing plate to do lifting motion so that the longitudinal fixing plate and the transverse fixing plate can get close to each other and get away from each other. Rollers rotating along the transverse shafts are arranged on the inner side surfaces of the longitudinal fixing plates; a plurality of bearing rods are further arranged on the transverse fixing plate in a penetrating mode, the lower ends of the bearing rods are connected with the longitudinal fixing plate, and limiting assemblies are arranged on the bearing rods and used for preventing the bearing rods from being separated from the transverse fixing plate; the rolling wheels at the bottom of the vehicle head can be driven to ascend and descend and stretch out and draw back to the vehicle bottom to be away from the ground, normal running of the vehicle is prevented from being hindered by the rolling wheels, and faults caused by grounding are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of front-end battery replacement of electric vehicles, and more specifically to a liftable driving hanging wheel device. Background Art

[0002] The battery replacement mode of electric vehicles is a form of providing electric energy to electric vehicles by replacing the power batteries of electric vehicles. The battery replacement mode mainly realizes the convenient replacement of electric vehicle batteries through battery replacement stations or battery replacement cabinets, and can monitor the battery replacement equipment and the operating status of the battery in real time during the battery replacement process. As battery replacement technology has evolved from commercial vehicle battery replacement to passenger vehicle battery replacement, from manual battery replacement to automatic battery replacement, and from full box battery replacement to sub-box battery replacement, battery replacement technology and battery replacement products have become more and more mature, and the market acceptance has also increased.

[0003] Due to the demand for safety, the front-end battery replacement technology of electric vehicles needs to install the battery compartment at the bottom of the vehicle at the rear. This causes the exit of the battery compartment to be a certain distance away from the front of the vehicle, so it is necessary to install a device to assist the battery in and out at the bottom of the front of the vehicle, such as a hanging wheel. However, after installing a hanging wheel at the bottom of the front of the vehicle, the chassis of the front of the vehicle will be too low, which will hinder the driving safety of the vehicle. If the front end of the vehicle touches the bottom or collides, the hanging wheel will be damaged and cannot assist the battery in and out normally, but will have a blocking effect. Utility Model Content

[0004] In view of this, the utility model provides a liftable driving hanging wheel device, which can drive the hanging wheel at the bottom of the front of the vehicle to rise and fall. On the one hand, when working, the hanging wheel can be controlled to descend, thereby assisting the battery to enter and exit from under the vehicle and provide driving power. On the other hand, when not working, the hanging wheel can be controlled to rise and stay away from the ground to avoid the hanging wheel hindering the normal driving of the vehicle.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a liftable driving hanging wheel device, comprising: a longitudinal fixing plate and a transverse fixing plate;

[0006] The upper part of the transverse fixing plate is provided with a telescopic device, and the lower part is provided with the longitudinal fixing plate;

[0007] The bottom of the telescopic device passes through the transverse fixing plate and is connected to the longitudinal fixing plate. The telescopic device drives the longitudinal fixing plate to move up and down so that the longitudinal fixing plate and the transverse fixing plate move closer to and away from each other.

[0008] The inner side surface of the longitudinal fixing plate is provided with a roller rotating along the horizontal axis;

[0009] A plurality of load-bearing rods are also provided through the transverse fixing plate, the lower ends of the load-bearing rods are connected to the longitudinal fixing plate, and a limiting assembly is provided on the load-bearing rods, and the limiting assembly is used to prevent the load-bearing rods from being separated from the transverse fixing plate.

[0010] Furthermore, the transverse fixing plate is provided with a plurality of through holes penetrating the upper and lower surfaces, and the lower end of the load-bearing rod passes through the through holes and is connected to the top end of the longitudinal fixing plate.

[0011] Furthermore, the limiting assembly is a limiting block, and the limiting block is arranged at the upper end of the load-bearing rod.

[0012] Furthermore, a roller driving device for driving the roller to rotate is fixedly connected to the outer side surface of the longitudinal fixing plate via a support frame.

[0013] Furthermore, the roller driving device is a stepping motor.

[0014] It can be seen from the above technical solution that, compared with the prior art, the liftable driving roller device disclosed by the utility model can drive the rollers at the bottom of the vehicle front to rise and fall. By telescoping, the rollers can be telescoped to the bottom of the vehicle, away from the ground, thereby reducing malfunctions caused by touching the bottom. Specifically, when working, the rollers can be controlled to descend, thereby assisting the battery to enter and exit from under the vehicle. When not working, the rollers can be controlled to rise, away from the ground, thereby preventing the rollers from obstructing the normal driving of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the installation position of the liftable driving hanging wheel device of the utility model.

[0017] Figure 2 For the utility model Figure 1 Enlarged view of part A.

[0018] Figure 3 It is a schematic structural diagram of the liftable driving hanging wheel device of the utility model.

[0019] Figure 4 This is a schematic structural diagram of the liftable driving hanging wheel device of the utility model from another perspective.

[0020] In the figure, there are a transverse fixing plate 1, a longitudinal fixing plate 2, a load-bearing rod 21, a limit block 212, a roller 22, a support frame 23, a roller driving device 24, a telescopic device 3, and a hydraulic cylinder 31. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Please refer to the attached Figure 1-4 , is a liftable driving hanging wheel device disclosed by the utility model.

[0023] The utility model provides a liftable driving hanging wheel device, which comprises: a transverse fixing plate 1, a longitudinal fixing plate 2, a load-bearing rod 21, a limit block 212, and a telescopic device 3.

[0024] A telescopic device 3 is provided on the upper part of the transverse fixed plate 1, and a longitudinal fixed plate 2 is provided on the lower part. The bottom of the telescopic device 3 passes through the transverse fixed plate 1 and is connected to the longitudinal fixed plate 2. The telescopic device 3 drives the longitudinal fixed plate 2 to move up and down so that the longitudinal fixed plate 2 and the transverse fixed plate 1 are moved closer to and away from each other; the inner side surface of the longitudinal fixed plate 2 is provided with a roller 22 rotating along the horizontal axis; a plurality of load-bearing rods 21 are also penetrated on the transverse fixed plate 1, and the lower ends of the load-bearing rods 21 are connected to the longitudinal fixed plate 2. A limiting component is provided on the load-bearing rod 21 to prevent the load-bearing rod 21 from detaching from the transverse fixed plate 1.

[0025] It should be noted that the transverse fixing plate 1 is provided with a plurality of through holes penetrating the upper and lower surfaces. The lower end of the load-bearing rod 21 is passed through the through hole and then connected to the top of the longitudinal fixing plate 2. The limiting component is specifically a limiting block 212. The limiting block 212 is provided at the upper end of the load-bearing rod 21 to prevent the upper end of the load-bearing rod 21 from detaching from the transverse fixing plate 1.

[0026] It should be noted that, as another embodiment, the limiting assembly can also be a horizontal pin shaft, and a plurality of such pin shafts are arranged on the side of the load-bearing rod 21 to limit the height of the longitudinal fixed plate 2 at different stages of descent and prevent the upper end of the load-bearing rod 21 from detaching from the transverse fixed plate 1.

[0027] The longitudinal fixing plate 2 is telescopically connected to the bottom surface of the transverse fixing plate 1 through a load-bearing rod 21, and a roller 22 rotating along a transverse axis is provided on the inner side of the longitudinal fixing plate 2, and a roller driving device 24 for driving the roller 22 to rotate bidirectionally is fixedly connected to the outer side of the longitudinal fixing plate 2 through a support frame 23. Preferably, the roller driving device 24 is a stepping motor.

[0028] A telescopic device 3 is provided on the top of the longitudinal fixing plate 2 and passes through the upper and lower sides of the transverse fixing plate 1. The telescopic device 3 drives the longitudinal fixing plate 2 to move up and down so that the longitudinal fixing plate 2 and the transverse fixing plate 1 are moved closer to and away from each other.

[0029] Preferably, the telescopic device 3 is an electric push rod or other device capable of driving the longitudinal fixing plate 2 to move up and down, and is used to telescopically control the lifting and lowering movement of the longitudinal fixing plate 2.

[0030] Preferably, the telescopic device 3 is two telescopic rods sleeved with each other, and a hydraulic cylinder 31 is provided at the top of the telescopic device 3 for controlling the telescopic device 3 to extend and retract to drive the longitudinal fixing plate 2 to achieve lifting movement.

[0031] When in use, two liftable driving wheel devices are symmetrically arranged on the left and right sides of the front end of the bottom of the vehicle to form a group of battery transportation devices. In order to make the battery have a better stability effect during transportation, multiple groups can be arranged in sequence along the front-rear axis direction of the car, wherein the telescopic device 3 and the transverse fixed plate 1 are fixed to the bottom of the vehicle, and the hydraulic cylinder 31 is used to drive the telescopic device 3 to push the longitudinal fixed plate 2 down, and the longitudinal fixed plate 2 drives the load-bearing rod 21, the roller 22 and the roller driving device 24 to descend together. When the limit assembly abuts against the upper surface of the transverse fixed plate 1, the longitudinal fixed plate 2 stops moving. At this time, the positions of the longitudinal fixed plate 2 and the transverse fixed plate 1 are relatively fixed. At this time, the battery can enter the area between the roller 22 of the multiple groups of symmetrical liftable driving wheel devices and the lower surface of the transverse fixed plate 1, and the load-bearing rod 21 is used to bear the weight of the battery, and the telescopic device 2 does not bear the weight. Then, according to the in-and-out direction of the battery, a control unit (such as a PLC) is set to control the roller driving device 24 to control the rotation direction of the roller 22 to assist the battery in and out movement. When use is completed, the hydraulic cylinder 31 is used to drive the telescopic device 3 to pull the longitudinal fixed plate 2 up, and the longitudinal fixed plate 2 drives the load-bearing rod 21, the roller 22 and the roller driving device 24 to rise together. When the upper end of the assembly fixed plate 2 abuts against the lower surface of the transverse fixed plate 1, the longitudinal fixed plate 2 stops moving. At this time, the positions of the longitudinal fixed plate 2 and the transverse fixed plate 1 are relatively fixed, completing the contraction of the roller 22, so that the roller 22 is away from the ground, reducing the failure caused by bottoming out.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A lifting and lowering driving hanging wheel device, characterized in that: include: A longitudinal fixing plate (2) and a transverse fixing plate (1); The upper part of the transverse fixing plate (1) is provided with a telescopic device (3), and the lower part is provided with the longitudinal fixing plate (2); The bottom of the telescopic device (3) passes through the transverse fixing plate (1) and is connected to the longitudinal fixing plate (2). The telescopic device (3) drives the longitudinal fixing plate (2) to move up and down so that the longitudinal fixing plate (2) and the transverse fixing plate (1) move closer to and farther from each other. The inner side surface of the longitudinal fixing plate (2) is provided with a roller (22) rotating along a horizontal axis; A plurality of load-bearing rods (21) are also provided through the transverse fixing plate (1), the lower ends of the load-bearing rods (21) are connected to the longitudinal fixing plate (2), and a limiting assembly is provided on the load-bearing rods (21), the limiting assembly being used to prevent the load-bearing rods (21) from detaching from the transverse fixing plate (1).

2. A liftable driving hanging wheel device according to claim 1, characterized in that: The transverse fixing plate (1) is provided with a plurality of through holes penetrating the upper and lower surfaces, and the lower end of the load-bearing rod (21) passes through the through holes and is connected to the top end of the longitudinal fixing plate (2).

3. The liftable driving hanging wheel device according to claim 1, characterized in that: The limiting assembly is a limiting block (212), and the limiting block (212) is arranged at the upper end of the load-bearing rod (21).

4. The liftable driving pulley device according to claim 1, characterized in that: The outer side surface of the longitudinal fixing plate (2) is fixedly connected to a roller driving device (24) for driving the roller (22) to rotate via a support frame (23).

5. The liftable driving hanging wheel device according to claim 4, characterized in that: The roller driving device (24) is a stepping motor.

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