Damping type driving chassis structure suitable for mobile charging pile

Abstract

The utility model discloses a damping type driving chassis structure suitable for a mobile charging pile, which comprises a driving chassis, and the driving chassis comprises a horizontal framework, a vertical framework and a driving motor. A vertical framework is fixedly arranged at the front end of the horizontal framework, a damping mechanism is fixedly installed in the vertical framework, and the lower end face of the damping mechanism is fixedly connected with a driving motor. A plurality of rear wheel mounting brackets are welded on the rear side of the lower end of the driving chassis to mount a rear wheel assembly; and a plurality of damping wheel fixing brackets are welded on the front side of the lower end surface of the driving chassis to mount damping wheels. The damping mechanism is arranged in the driving chassis, the spring is arranged outside the driving motor in the damping mechanism, the limiting nut is arranged above the spring, and the compression pre-tightening force of the spring can be adjusted by adjusting the limiting nut, so that the obstacle crossing capacity of the whole mobile charging pile is improved; and meanwhile, hard impact of related parts of the whole mobile charging pile when encountering obstacles is relieved.

Description

Technical Field

[0001] The utility model relates to a chassis structure, in particular to a shock-absorbing drive chassis structure suitable for a mobile charging pile. Background Art

[0002] At present, most mobile charging piles on the market are applied to communities and factories, and the operating conditions are relatively flat. Due to the space limitation of the whole vehicle, most of them do not set buffer components for relatively good road surfaces under the operating conditions. This will lead to a significant reduction in the obstacle-crossing ability of the whole vehicle for long-distance and poor road surface usage environments.

[0003] Aiming at the design problems of mobile charging pile models on the previous market, when a mobile charging pile is driving and encounters a speed bump and an uneven road surface, its obstacle-crossing performance is not good, resulting in the inability to charge an electric vehicle. Summary of the Utility Model

[0004] In order to solve the deficiencies of the above technologies, the utility model provides a shock-absorbing drive chassis structure suitable for a mobile charging pile.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is a shock-absorbing drive chassis structure suitable for a mobile charging pile, including a drive chassis. The drive chassis includes a horizontal skeleton, a vertical skeleton and a drive motor; the front end of the horizontal skeleton is fixedly provided with a vertical skeleton, and a shock-absorbing mechanism is fixedly installed inside the vertical skeleton. The lower end surface of the shock-absorbing mechanism is fixedly connected to the drive motor; a plurality of rear wheel mounting brackets are welded to the rear side of the lower end of the drive chassis to install a rear wheel assembly, and a plurality of shock-absorbing wheel fixing brackets are welded to the front side of the lower end surface of the drive chassis to install shock-absorbing wheels.

[0006] The shock-absorbing mechanism includes a plurality of motor screws, a plurality of springs, a plurality of limit nuts and a horizontal fixing plate; the upper end surface of the drive motor is fixedly connected to the horizontal fixing plate, and an opening is provided on the horizontal fixing plate for the drive motor to connect to the motor screw. The other side of the motor screw connected to the drive motor is fixedly connected to the upper part of the vertical skeleton; a plurality of springs are equidistantly arranged on the upper end surface of the horizontal fixing plate, and a fixing base is welded in the middle of the vertical skeleton to fix the spring and the motor screw; a limit nut is arranged outside the motor screw to adjust the compression pre-tightening force of the spring, and the limit nut is located above the spring.

[0007] Further, an anti-corrosion layer is provided on the outside of the drive chassis.

[0008] Further, a plurality of reinforcing ribs are welded at equal distances on the front side of the horizontal skeleton to reinforce the horizontal skeleton.

[0009] Further, the horizontal skeleton includes a tail beam, a plurality of first longitudinal beams, a plurality of cross beams, and a third longitudinal beam; a plurality of first longitudinal beams and a third longitudinal beam are welded at equal intervals between the plurality of cross beams; the tail beam is welded to the rear ends of the plurality of cross beams together.

[0010] Further, the width of the third longitudinal beam is greater than the width of the first longitudinal beam.

[0011] Further, rear wheel mounting brackets and shock absorber wheel fixing brackets are welded to the bottom end faces of the plurality of cross beams.

[0012] Further, the motor screw, the spring, and the limit nut are arranged in one-to-one correspondence.

[0013] Further, the vertical skeleton includes a first column, a second column, a second longitudinal beam, a first side column, a second side column, and a top beam; the first column and the second column are symmetrically welded to the front end of the horizontal skeleton, and the second longitudinal beam is welded to the upper ends of the first column and the second column together; the first side column is welded to the inner side of the first column, and the second side column is welded to the inner side of the second column; the top beam is welded to the upper ends of the first side column and the second side column together.

[0014] Further, a wire tying sheet metal is fixedly arranged at the upper end of the second longitudinal beam to fasten the wire harness.

[0015] Further, the other side of the motor screw connected to the driving motor is fixedly connected to the second longitudinal beam; the fixed base is welded to the bottom end of the top beam.

[0016] The utility model discloses a shock-absorbing driving chassis structure applicable to a mobile charging pile. By arranging a shock-absorbing mechanism in the driving chassis, a spring is arranged outside the driving motor in the shock-absorbing mechanism, and a limit nut is arranged above the spring. By adjusting the limit nut, the compression pre-tightening force of the spring can be adjusted, enhancing the obstacle-crossing ability of the whole mobile charging pile when passing over speed bumps and uneven roads, and at the same time slowing down the hard impact of relevant components of the whole mobile charging pile when encountering obstacles, and avoiding damage to the mobile charging pile caused by the driving motor when encountering obstacles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of assembling a battery rack in an embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of assembling a battery pack in an embodiment of the utility model.

[0020] Figure 4This is an exploded view of the assembled battery pack in the embodiment of the present utility model.

[0021] Figure 5 For the present utility model Figure 3 A partial enlarged schematic view of part A.

[0022] In the figure: 1, tail beam; 2, first longitudinal beam; 3, cross beam; 4, first column; 5, second column; 6, second longitudinal beam; 7, wire bundling sheet metal; 8, first side column; 9, second side column; 10, top beam; 11, horizontal fixing plate; 12, third longitudinal beam; 13, rear wheel mounting bracket; 14, shock-absorbing wheel; 15, drive motor; 16, spring; 17, fixed base; 18, limit nut; 19, motor screw; 20, rear wheel assembly; 21, shock-absorbing wheel fixing bracket; 22, reinforcing rib. Detailed implementation manners

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0024] A shock-absorbing drive chassis structure applicable to a mobile charging pile, comprising a drive chassis, the drive chassis including a horizontal-direction skeleton, a vertical-direction skeleton and a drive motor 15; the front end of the horizontal-direction skeleton is fixedly provided with the vertical-direction skeleton, and a shock-absorbing mechanism is fixedly installed inside the vertical-direction skeleton, and the lower end surface of the shock-absorbing mechanism is fixedly connected to the drive motor 15; a plurality of rear wheel mounting brackets 13 are welded to the rear side of the lower end of the drive chassis for installing a rear wheel assembly 20, and a plurality of shock-absorbing wheel fixing brackets 21 are welded to the front side of the lower end surface of the drive chassis for installing shock-absorbing wheels 14;

[0025] The shock-absorbing mechanism includes a plurality of motor screws 19, a plurality of springs 16, a plurality of limit nuts 18 and a horizontal fixing plate 11; the upper end surface of the drive motor 15 is fixedly connected to the horizontal fixing plate 11, and an opening is formed on the horizontal fixing plate 11 for the drive motor 15 to connect to the motor screw 19, and the other side of the motor screw 19 connected to one side of the drive motor 15 is fixedly connected to the upper part of the vertical-direction skeleton; a plurality of springs 16 are equidistantly arranged on the upper end surface of the horizontal fixing plate 11, and a fixed base 17 is welded to the middle of the vertical-direction skeleton to fix the springs 16 and the motor screws 19; a limit nut 18 is arranged outside the motor screw 19 to adjust the compression pre-tightening force of the spring 16, and the limit nut 18 is located above the spring 16.

[0026] Specifically, an anti-corrosion layer is provided on the outside of the driving chassis. A number of reinforcing ribs 22 are welded at equal intervals on the front side of the horizontal skeleton for strengthening the horizontal skeleton. The horizontal skeleton includes a tail beam 1, a number of first longitudinal beams 2, a number of cross beams 3 and a third longitudinal beam 12; a number of first longitudinal beams 2 and a third longitudinal beam 12 are welded at equal intervals between the number of cross beams 3; the rear ends of the number of cross beams 3 are jointly welded with the tail beam 1. The width of the third longitudinal beam 12 is greater than the width of the first longitudinal beam 2. The bottom ends of the number of cross beams 3 are all welded with rear wheel mounting brackets 13 and shock-absorbing wheel fixing brackets 21. The motor screw 19, the spring 16 and the limit nut 18 are arranged in one-to-one correspondence. The vertical skeleton includes a first upright column 4, a second upright column 5, a second longitudinal beam 6, a first side upright column 8, a second side upright column 9 and a top beam 10; the first upright column 4 and the second upright column 5 are symmetrically welded to the front end of the horizontal skeleton, and the upper ends of the first upright column 4 and the second upright column 5 are jointly welded with the second longitudinal beam 6; the first side upright column 8 is welded inside the first upright column 4, and the second side upright column 9 is welded inside the second upright column 5; the upper ends of the first side upright column 8 and the second side upright column 9 are jointly welded with the top beam 10. A wire-binding sheet metal 7 is fixedly arranged at the upper end of the second longitudinal beam 6 to fasten the wire harness. The motor screw 19 is connected to the other side of one side of the driving motor 15 and is fixedly connected to the second longitudinal beam 6 on the other side; the fixed base 17 is welded to the bottom end of the top beam 10.

[0027] This embodiment provides the specific connection method and usage process of the structure of a shock-absorbing driving chassis applicable to a mobile charging pile; as Figure 1 shown in the overall structure diagram of a shock-absorbing driving chassis structure applicable to a mobile charging pile, a shock-absorbing driving chassis applicable to a mobile charging pile includes a driving chassis, and the driving chassis includes a horizontal skeleton, a vertical skeleton and a driving motor 15; the vertical skeleton is fixedly arranged at the front end of the horizontal skeleton, a shock-absorbing mechanism is fixedly installed inside the vertical skeleton, and the lower end surface of the shock-absorbing mechanism is fixedly connected to the driving motor 15; two rear wheel mounting brackets 13 are welded at the rear side of the lower end surface of the driving chassis for installing a rear wheel assembly 20, and two shock-absorbing wheel fixing brackets 21 are welded at the front side of the lower end surface of the driving chassis for installing shock-absorbing wheels 14. An anti-corrosion layer is provided on the outside of the driving chassis.

[0028] Two reinforcing ribs 22 are symmetrically welded on the front side of the horizontal skeleton for strengthening the horizontal skeleton; the horizontal skeleton includes a tail beam 1, two first longitudinal beams 2, two cross beams 3 and a third longitudinal beam 12; two first longitudinal beams 2 and a third longitudinal beam 12 are respectively welded at equal intervals between the two cross beams 3, and the width of the third longitudinal beam 12 is greater than the width of the first longitudinal beam 2; the rear ends of the two cross beams 3 are welded with the tail beam 1; the bottom ends of the two cross beams 3 are all welded with rear wheel mounting brackets 13 and shock-absorbing wheel fixing brackets 21.

[0029] The vertical skeleton includes two columns, a second longitudinal beam 6, two side columns, and a top beam 10; the columns include a first column 4 and a second column 5, and the side columns include a first side column 8 and a second side column 9; the upper ends of the two columns are fixedly provided with the second longitudinal beam 6, and a wire tying sheet metal 7 is fixedly provided at the upper end of the second longitudinal beam 6; the side columns are welded on the opposite surfaces of the two columns, and the upper ends of the two side columns are fixedly provided with the top beam 10.

[0030] The shock absorption mechanism includes two motor screws 19, two springs 16, two limit nuts 18, and a horizontal fixing plate 11; the upper end surface of the driving motor 15 is fixedly connected to the horizontal fixing plate 11, and an opening is provided on the horizontal fixing plate 11 for the driving motor 15 to connect to the motor screw 19. The motor screw 19 is connected to the driving motor 15 and the other side of the driving motor 15 is connected to the second longitudinal beam 6; two springs 16 are symmetrically welded on the upper end surface of the horizontal fixing plate 11, and a fixed base 17 is fixedly provided at the bottom end of the top beam 10 to fix the springs 16 and the motor screws 19. A limit nut 18 is provided outside the motor screw 19 to adjust the compression pre-tightening force of the spring 16, and the limit nut 18 is located above the spring 16.

[0031] Usage process: According to the original charging and discharging of the whole mobile charging pile and the spatial dimensions of the whole mobile charging pile, two first longitudinal beams 2 and a third longitudinal beam 12 are arranged between the two cross beams 3, and a tail beam 1 is fixedly provided at the rear ends of the two cross beams 3. Electric welding is carried out on the corresponding holes through a tooling to initially form a horizontal skeleton structure; to ensure the driving performance of the driving motor 15 during the later driving process, corresponding reinforcing ribs 22 are arranged on the front side of the horizontal skeleton structure for skeleton reinforcement; two rear wheel mounting brackets 13 are electric welded to the bottom rear end of the horizontal skeleton structure, and two shock-absorbing wheel fixing brackets 21 are electric welded to the bottom front end of the horizontal skeleton structure. Assemble the mounting skeleton of the driving motor 15. Weld a second longitudinal beam 6 to the upper ends of the two columns, weld two side columns to the inner walls of the two columns respectively, and weld a top beam 10 to the upper ends of the two side columns to form a vertical skeleton structure; weld the two columns to the front ends of the two cross beams 3 respectively to form a driving chassis structure. Since the whole mobile charging pile is located outdoors, anti-corrosion treatment is carried out on the surface of the driving chassis to ensure that the whole machine can work outdoors for a long time. After surface treatment, install the rear wheel assembly 20 to the lower end of the rear wheel mounting bracket 13, install the shock-absorbing wheel 14 to the lower end of the shock-absorbing wheel fixing bracket 21, and install the driving motor 15 into the mounting skeleton of the driving motor 15.

[0032] Such as Figure 5 a shock-absorbing driving chassis structure suitable for a mobile charging pile Figure 3The upper end face of the driving motor 15 at A in the figure is welded with a horizontal fixing plate 11; a spring 16 is fixedly arranged on the upper end face of the horizontal fixing plate 11, and a motor screw 19 is arranged inside the spring 16; two fixing bases 17 are welded to the bottom of the top beam 10 to connect the motor screw 19, and two limiting nuts 18 are symmetrically arranged on the upper end face of the fixing base 17. The limiting nuts 18 are arranged outside the motor screw 19. By adjusting the limiting nuts 18, the compression pre-tightening force of the spring 16 is adjusted, ensuring that after the vehicle bears the load, both the rear wheel assembly 20 and the shock-absorbing wheel 14 at the bottom of the vehicle are in contact with the ground, thereby increasing the pressure of the vehicle on the ground.

[0033] The driving motor 15, the rear wheel assembly 20 and the shock-absorbing wheel 14 are installed on the welded driving chassis structure through bolt assemblies to form the assembly of the driving chassis. The battery rack is installed on the fixing holes of the battery cluster frame corresponding to the welded skeleton of the driving chassis through bolt assemblies. One side of the battery pack is subjected to slot-hole fitting with the fixing holes corresponding to the installation slots of the battery rack, as Figure 2 shown in the structural schematic diagram of assembling the battery rack in an embodiment of a shock-absorbing driving chassis structure applicable to a mobile charging pile, and is fixedly installed through a bolt fastening assembly, as Figure 3 shown in the structural schematic diagram of assembling the battery pack in an embodiment of a shock-absorbing driving chassis structure applicable to a mobile charging pile. The other side of the battery pack is limited and fixed with the U-shaped folding plate on the battery rack to improve the installation efficiency of the battery pack. One side of the upper charging pile is subjected to slot-hole fitting with the fixing holes corresponding to the installation slots of the battery rack, and is fixedly installed through a bolt fastening assembly. A U-shaped folding plate is arranged outside the battery rack, and the other side of the upper charging pile is fixed and limited with the U-shaped folding plate on the battery rack. By adding a spring 16 to the driving motor 15, when the mobile charging pile vehicle passes over a speed bump and an uneven road surface, the obstacle-crossing ability of the mobile charging pile vehicle is improved, and at the same time, the hard impact of relevant components of the mobile charging pile vehicle when encountering an obstacle is slowed down, avoiding damage to the motor caused by the mobile charging pile vehicle itself when the motor encounters an obstacle.

[0034] Such as Figure 4 shown in the explosion diagram of assembling the battery pack in an embodiment of a shock-absorbing driving chassis structure applicable to a mobile charging pile, the component fixing plate is installed on the corresponding installation holes of the battery cluster frame through bolt assemblies, and components such as the control module device, namely the DC battery module, fuse, contactor, encoder, steering motor, driving motor 15 controller and discharge resistor are bolt-installed on the component fixing plate and are connected through the wire harnesses between relevant components. A wire-binding sheet metal 7 is arranged at the upper end of the second longitudinal beam 6 to fasten the wire harness, thereby forming the connection and use between various components of the vehicle.

[0035] A charging pile cable winding disc is welded to the rear end of the battery rack, which is convenient for storing the cable when the charging pile is not in use.

[0036] The above embodiments are not a limitation on the present utility model, nor is the present utility model limited to the above examples. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model also fall within the protection scope of the present utility model.

Claims

1. A shock-absorbing driving chassis structure suitable for a mobile charging pile, comprising a driving chassis, characterized in that: The driving chassis comprises a horizontal frame, a vertical frame and a driving motor (15); the vertical frame is fixedly arranged at the front end of the horizontal frame, a shock absorbing mechanism is fixedly installed inside the vertical frame, and the lower end surface of the shock absorbing mechanism is fixedly connected to the driving motor (15); a plurality of rear wheel mounting brackets (13) are welded to the rear side of the lower end of the driving chassis to mount a rear wheel assembly (20), and a plurality of shock absorbing wheel fixing brackets (21) are welded to the front side of the lower end of the driving chassis to mount a shock absorbing wheel (14); The shock absorbing mechanism comprises a plurality of motor screws (19), a plurality of springs (16), a plurality of limit nuts (18) and a horizontal fixing plate (11); the upper end surface of the driving motor (15) is fixedly connected to the horizontal fixing plate (11); an opening is provided on the horizontal fixing plate (11) for the driving motor (15) to be connected to the motor screw (19); the motor screw (19) is connected to one side of the driving motor (15) and the other side is fixedly connected to the upper part of the vertical direction frame; a plurality of springs (16) are arranged at equal distances on the upper end surface of the horizontal fixing plate (11); a fixing base (17) is welded in the middle of the vertical direction frame to fix the spring (16) and the motor screw (19); a limit nut (18) is arranged outside the motor screw (19) to adjust the compression preload of the spring (16); the limit nut (18) is located above the spring (16).

2. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 1 is characterized in that: An anti-corrosion layer is arranged on the outside of the driving chassis.

3. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 1 is characterized in that: A plurality of reinforcing ribs (22) are welded at equal distances on the front side of the horizontal skeleton to reinforce the horizontal skeleton.

4. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 1 is characterized in that: The horizontal skeleton comprises a tail beam (1), a plurality of first longitudinal beams (2), a plurality of cross beams (3) and a third longitudinal beam (12); a plurality of first longitudinal beams (2) and a plurality of third longitudinal beams (12) are welded at equal distances between the plurality of cross beams (3); and the tail beam (1) is welded to the rear ends of the plurality of cross beams (3).

5. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 4 is characterized in that: The width of the third longitudinal beam (12) is greater than the width of the first longitudinal beam (2).

6. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 4 is characterized in that: The bottom end surfaces of a plurality of the cross beams (3) are welded with a rear wheel mounting bracket (13) and a shock-absorbing wheel fixing bracket (21).

7. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 1 is characterized in that: The motor screw rod (19), the spring (16) and the limiting nut (18) are arranged in a one-to-one correspondence.

8. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 1 is characterized in that: The vertical direction skeleton comprises a first column (4), a second column (5), a second longitudinal beam (6), a first side column (8), a second side column (9) and a top beam (10); the first column (4) and the second column (5) are symmetrically welded to the front end of the horizontal direction skeleton, and the upper end of the first column (4) and the upper end of the second column (5) are welded to the second longitudinal beam (6); the first side column (8) is welded to the inner side of the first column (4), and the second side column (9) is welded to the inner side of the second column (5); the upper end of the first side column (8) and the upper end of the second side column (9) are welded to the top beam (10).

9. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 8 is characterized in that: A wire binding sheet metal (7) is fixedly provided on the upper end of the second longitudinal beam (6) to fasten the wire harness.

10. The shock-absorbing driving chassis structure suitable for a mobile charging pile according to claim 8, characterized in that: The motor screw (19) is connected to one side of the driving motor (15) and the other side is fixedly connected to the second longitudinal beam (6); the fixed base (17) is welded to the bottom end of the top beam (10).

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