Foldable driving change gear device

Abstract

The utility model relates to the technical field of electric automobile front end battery replacement, and discloses a foldable driving change gear device which comprises a transverse supporting plate and a longitudinal supporting plate, a supporting block is arranged at the bottom of the transverse supporting plate, and the longitudinal supporting plate is hinged to the supporting block. Rollers are arranged on the longitudinal supporting plates; hinge shafts are coaxially arranged at the upper ends of the two opposite side faces of the longitudinal supporting plate and used for being hinged to the supporting blocks. A folding motor is arranged on the bottom face of the transverse supporting plate, the hinge shaft is fixedly connected to an output shaft of the folding motor in the axial direction, and the folding motor drives the hinge shaft to rotate so that the longitudinal supporting plate can rotate around the hinge shaft in the direction close to the transverse supporting plate. The idler wheels can not only bear load and provide power to assist the battery in entering and exiting the battery bin, but also can be folded, and deformation damage caused by bottom touching collision is 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 foldable 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 foldable driving hanging wheel device, the roller can not only bear weight and provide power to assist the battery to enter and exit the battery compartment, but also can be folded to reduce deformation damage caused by bottoming out collision.

[0005] To achieve the above-mentioned purpose, the utility model provides a foldable driving hanging wheel device, comprising a transverse support plate and a longitudinal support plate, wherein a support block is arranged at the bottom of the transverse support plate, and the longitudinal support plate is hinged to the support block;

[0006] The longitudinal support plate is provided with rollers;

[0007] The upper ends of two opposite sides of the longitudinal support plate are coaxially provided with hinge shafts for hinge connection with the support block;

[0008] A folding motor is provided on the bottom surface of the transverse support plate, and the hinge shaft is fixedly connected to the output shaft of the folding motor along the axial direction. The folding motor drives the hinge shaft to rotate so that the longitudinal support plate rotates around the hinge shaft in a direction close to the transverse support plate.

[0009] Furthermore, a roller driving device for driving the roller to rotate is provided on the longitudinal support plate.

[0010] Furthermore, the hinge shaft is arranged at the upper ends of the inner and outer opposite sides of the longitudinal support plate.

[0011] Furthermore, the hinge shaft is arranged at the upper ends of the front and rear opposite sides of the longitudinal support plate.

[0012] Furthermore, the upper and lower surfaces of the transverse support plate are provided with through holes, the through holes are adapted to the shape of the roller, and after the longitudinal support plate is folded toward the direction close to the transverse support plate, the roller is located in the through holes.

[0013] Furthermore, the folding motor is fixedly connected to the bottom surface of the transverse supporting plate through a first fixing plate.

[0014] Furthermore, the roller driving device is fixedly connected to the outer side surface of the longitudinal supporting plate through a second fixing plate.

[0015] It can be seen from the above technical solution that compared with the prior art, the foldable driving hanging wheel device disclosed by the utility model can drive the rollers at the bottom of the front of the vehicle to fold, and can rotate the longitudinal support plate to fold the rollers to the bottom of the vehicle, away from the ground, thereby reducing faults caused by touching the bottom. Specifically, when working, the longitudinal support plate rotates to a vertically expanded state, and the rotation of the rollers assists the battery to enter and exit from the bottom of the vehicle. The roller driving device can also provide driving power. When not working, the rollers can be controlled to fold and keep them away from the ground, thereby preventing the rollers from hindering the normal driving of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the roller unfolding state of the first embodiment of the foldable driving hanging wheel device of the utility model.

[0018] Figure 2 This is a schematic diagram of the roller folding state of the first embodiment of the foldable driving hanging wheel device of the utility model.

[0019] Figure 3 This is a schematic diagram of the roller unfolding state of the second embodiment of the foldable driving hanging wheel device of the utility model.

[0020] Figure 4 This is a schematic diagram of the roller folding state of the second embodiment of the foldable driving hanging wheel device of the utility model.

[0021] Figure 5 This is a schematic diagram from another perspective of the foldable driving hanging wheel device of the second embodiment of the utility model in the folded roller state.

[0022] In the figure, there are a transverse support plate 1 , a folding motor 11 , a first fixing plate 13 , a longitudinal support plate 2 , a roller 21 , a roller driving device 22 , a second fixing plate 23 , a hinge shaft 24 , and a support block 3 . DETAILED DESCRIPTION

[0023] 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.

[0024] Please see attached Figure 1-3 , is a foldable driving hanging wheel device disclosed by the utility model.

[0025] The foldable driving hanging wheel device provided by the utility model comprises: a transverse support plate 1, a folding motor 11, a first fixing plate 13, a longitudinal support plate 2, a roller 21, a roller driving device 22, a second fixing plate 23, a hinge shaft 24, and a support block 3.

[0026] Embodiment 1:

[0027] A folding motor 11 and a support block 3 are fixedly connected to the bottom surface of the transverse support plate 1. The folding motor 11 is fixedly connected to the bottom surface of the transverse support plate 1 through a first fixed plate 13. The lower end of the support block 3 is hinged to the longitudinal support plate 2. The upper ends of the two opposite side surfaces of the longitudinal support plate 2 are coaxially provided with hinge shafts 24. A notch is provided at the lower end of the support block 3. A rotation groove matching the hinge shaft 24 is opened on the two opposite surfaces inside the notch. The hinge shaft 24 is sleeved in the rotation groove to realize the hinge connection of the longitudinal support plate and the support block. A roller 21 is provided on the inner side of the longitudinal support plate 2, and a roller driving device 22 for driving the roller 21 to rotate in both directions is provided on the outer side thereof. The roller driving device 22 is fixedly connected to the outer side surface of the longitudinal support plate 2 through a second fixed plate 23. The hinge shaft 24 is axially fixedly connected to the output shaft of the folding motor 11. The hinge shaft 24 is axially fixedly connected to the output shaft of the folding motor 11. The folding motor 11 drives the hinge shaft 24 to rotate so that the longitudinal support plate 2 rotates around the hinge shaft 24 in the direction close to and away from the transverse support plate 1. Preferably, the folding motor 11 and the roller driving device 22 are stepping motors, which can accurately control the rotation direction and angle of the hinge shaft 11 and the roller 21.

[0028] It should be noted that the hinge shaft 24 is arranged at the upper ends of the inner and outer opposite sides of the longitudinal support plate 2. In the present embodiment, when the folding motor 11 works to make the longitudinal support plate 2 rotate around the hinge shaft 24 toward the direction close to the transverse support plate 1, it is longitudinal folding, that is, the folding direction of the roller is the front and rear folding parallel to the running direction of the vehicle, and the folding motor 11 drives the hinge shaft 24 to rotate, thereby driving the longitudinal support plate 2 to fold; when the folding motor 11 works to make the longitudinal support plate 2 rotate around the hinge shaft 24 toward the direction away from the transverse support plate 1, it is an unfolding process, that is, the folding direction of the roller is the front and rear folding parallel to the running direction of the vehicle, and the folding motor 11 drives the hinge shaft 24 to rotate, thereby driving the longitudinal support plate 2 to unfold; at the same time, a control unit (such as a PLC) can be set to control the driving direction of the folding motor 11 and the roller driving device 22, thereby controlling the folding and unfolding of the roller 21, as well as the rotation direction of the roller 21, to realize the transportation of the auxiliary battery in different directions.

[0029] Embodiment 2:

[0030] See also Figure 4-5 The bottom surface of the transverse support plate 1 is fixedly connected with a folding motor 11 and a support block 3. The folding motor 11 is fixedly connected to the bottom surface of the transverse support plate 1 through a first fixed plate 13. The lower end of the support block 3 is hinged with a longitudinal support plate 2. The upper ends of the two opposite sides of the longitudinal support plate 2 are coaxially provided with a hinge shaft 24. A notch is provided at the lower end of the support block 3. A rotation groove matching the hinge shaft 24 is opened on the two opposite surfaces inside the notch. The hinge shaft 24 is sleeved in the rotation groove to realize the hinge connection between the longitudinal support plate and the support block. A roller 21 is provided on the inner side of the longitudinal support plate 2, and a roller driving device 22 for driving the roller 21 to rotate in both directions is provided on the outer side thereof. The roller driving device 22 is fixedly connected to the outer side surface of the longitudinal support plate 2 through a second fixed plate 23. The hinge shaft 24 is axially fixedly connected to the output shaft of the folding motor 11. The hinge shaft 24 is axially fixedly connected to the output shaft of the folding motor 11. The folding motor 11 drives the hinge shaft 24 to rotate so that the longitudinal support plate 2 rotates around the hinge shaft 24 in the direction close to and away from the transverse support plate 1. Preferably, the folding motor 11 and the roller driving device 22 are stepping motors, which can accurately control the rotation direction and angle of the hinge shaft 11 and the roller 21.

[0031] It should be noted that the hinge shaft 24 is arranged at the upper ends of the front and rear opposite sides of the longitudinal support plate 2, and a through hole is provided on the upper and lower sides of the transverse support plate 1, and the through hole is adapted to the shape of the roller (21), and after the longitudinal support plate 2 is folded in a direction close to the transverse support plate 1, the roller 21 is located in the through hole. Preferably, the diameter of the through hole is slightly larger than the diameter of the cross section of the roller 21 after folding, so that the roller 21 can be better accommodated in the through hole.

[0032] In this embodiment, when the folding motor 11 works to make the longitudinal support plate 2 rotate around the hinge shaft 24 toward the direction close to the transverse support plate 1, it is transverse folding, that is, the folding direction of the roller is left and right folding perpendicular to the vehicle running direction, and the folding motor 11 drives the hinge shaft 24 to rotate, thereby driving the longitudinal support plate 2 to fold; when the folding motor 11 works to make the longitudinal support plate 2 rotate around the hinge shaft 24 toward the direction away from the transverse support plate 1, it is an unfolding process, that is, the folding direction of the roller is front and back folding parallel to the vehicle running direction, and the folding motor 11 drives the hinge shaft 24 to rotate, thereby driving the longitudinal support plate 2 to unfold; at the same time, a control unit (such as a PLC) can be set to control the driving direction of the folding motor 11 and the roller driving device 22, thereby controlling the folding and unfolding of the roller 21, as well as the rotation direction of the roller 21, to realize the transportation of the auxiliary battery in different directions.

[0033] On the basis of the above two embodiments, when the utility model is in use, two foldable driving hanging 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 transverse support plate is fixed to the bottom of the vehicle, and the longitudinal support plate 2 is unfolded to a vertical state by the folding motor 11. At this time, the battery can enter the middle area of ​​a group of battery transportation devices, and the left and right ends of the battery are accommodated in the area between the roller 21 and the bottom surface of the transverse support plate 1. At this time, the battery can be transported on the roller 21 in the front and rear directions. Preferably, the roller drive device can also be used to provide power to assist the rotation of the roller, so that the battery can be transported more conveniently; when the transportation is completed, the longitudinal support plate 2 is rotated to a folded state by the folding motor 11, so that the roller 21 is away from the ground to prevent the roller 21 from hindering the normal driving of the vehicle.

[0034] It should be noted that in actual use, different folding methods (vertical folding, horizontal folding) can be selected as needed and combined in any way to achieve better application effects.

[0035] 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 foldable driving hanging wheel device, characterized in that: include: A transverse support plate (1) and a longitudinal support plate (2), wherein a support block (3) is provided at the bottom of the transverse support plate (1), and the longitudinal support plate (2) is hinged to the support block (3); The longitudinal support plate (2) is provided with a roller (21); The upper ends of two opposite sides of the longitudinal support plate (2) are coaxially provided with hinge shafts (24) for being hingedly connected to the support block (3); A folding motor (11) is provided on the bottom surface of the transverse support plate (1); the hinge shaft (24) is fixedly connected to the output shaft of the folding motor (11) along the axial direction; the folding motor (11) drives the hinge shaft (24) to rotate so that the longitudinal support plate (2) rotates around the hinge shaft (24) in a direction close to the transverse support plate (1).

2. A foldable driving hanging wheel device according to claim 1, characterized in that: The longitudinal support plate (2) is provided with a roller driving device (22) for driving the roller (21) to rotate.

3. A foldable driving hanging wheel device according to claim 1, characterized in that: The hinge shaft (24) is arranged at the upper end portions of the inner and outer opposite sides of the longitudinal support plate (2).

4. A foldable driving hanging wheel device according to claim 1, characterized in that: The hinge shaft (24) is arranged at the upper end portions of the front and rear opposite sides of the longitudinal support plate (2).

5. A foldable driving hanging wheel device according to claim 4, characterized in that: The upper and lower surfaces of the transverse support plate (1) are provided with through holes, the through holes being adapted to the shape of the roller (21), and after the longitudinal support plate (2) is folded in a direction close to the transverse support plate (1), the roller (21) is located in the through holes.

6. A foldable driving hanging wheel device according to claim 1, characterized in that: The folding motor (11) is fixedly connected to the bottom surface of the transverse supporting plate (1) via a first fixing plate (13).

7. A foldable driving hanging wheel device according to claim 2, characterized in that: The roller drive device (22) is fixedly connected to the outer side surface of the longitudinal support plate (2) via a second fixing plate (23).

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