A chassis structure based on an electric drive axle

Abstract

The utility model provides a kind of chassis structure based on electric drive bridge belongs to truck chassis field, including chassis frame;The bottom of both sides of chassis frame is fixedly connected with bearing plate;The top of bearing plate is fixedly connected with oil cylinder;The middle part of both sides of chassis frame is equipped with sliding slot;The middle part of sliding slot is slidably connected with limit frame;Limit frame is located at the top end of oil cylinder;The top of bearing plate is detachably installed with battery box;The side wall of chassis frame is fixedly connected with multiple pairs of convex strips;Multiple shaft poles are fixedly connected between each pair of convex strips;The middle part of shaft pole is rotatably connected with sleeve pipe;The middle part of sleeve pipe is fixedly connected with rubber sleeve;Through the above structure, battery box can be disassembled and replaced when truck power is insufficient, so as to quickly complete the supplement of vehicle power, save the time of vehicle waiting for charging consumption in charging place.

Description

Technical Field

[0001] This utility model belongs to the field of truck chassis technology, specifically a chassis structure based on an electric drive axle. Background Technology

[0002] An electric drive axle is a drive system that highly integrates key components such as an electric motor, reducer, and differential into the axle, and is widely used in the field of new energy trucks.

[0003] The chassis is the lower frame structure of a car, composed of four main systems: the drivetrain, the running gear, the steering system, and the braking system. Its core functions are to support the vehicle body, transmit power, ensure driving stability and safety, and adapt to the needs of different driving scenarios. The electric drive axle is mounted on the chassis, and the battery pack that supplies energy is also installed on the chassis. However, the existing battery packs are mounted on the chassis and are not easy to remove, so they need to be charged using a charging gun at a charging station, rather than quickly swapping batteries by replacing the battery pack, which is time-consuming. Therefore, a chassis structure based on an electric drive axle is proposed. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing battery boxes are inconvenient to disassemble when mounted on the chassis, thus requiring charging at a charging location and making it difficult to quickly swap batteries by replacing the battery box, which is time-consuming. This invention provides a chassis structure based on an electric drive axle to solve the problems mentioned in the background.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] The present invention is as follows: a chassis structure based on an electric drive axle, including a chassis frame; a bearing plate is fixedly connected to the bottom of both sides of the chassis frame; a hydraulic cylinder is fixedly connected to the top of the bearing plate; a sliding groove is opened in the middle of both sides of the chassis frame; a limit frame is slidably connected to the middle of the sliding groove; the limit frame is located at the top of the hydraulic cylinder; a battery box is detachably installed on the top of the bearing plate.

[0007] As a preferred technical solution of this utility model, the side wall of the chassis frame is fixedly connected to multiple pairs of protruding strips; multiple shafts are fixedly connected between each pair of protruding strips; a sleeve is rotatably connected to the middle of the shaft; and a rubber sleeve is fixedly connected to the middle of the sleeve.

[0008] As a preferred technical solution of this utility model, the bottom of the battery box is provided with a slot; the bottom of both sides of the slot is provided with guide grooves; a fixing frame is fixedly connected to the top of the support plate; and a guide roller is rotatably connected to the middle of the fixing frame.

[0009] As a preferred technical solution of this utility model, the side wall of the limiting frame is fixedly connected to an installation strip; a plurality of connecting blocks are detachably installed in the middle of the installation strip; and a protective curtain is fixedly connected to the bottom of the connecting blocks.

[0010] As a preferred technical solution of this utility model, the battery box has multiple ventilation slots in the middle; the bottom end of the ventilation slot is connected to the slot; and a support strip is fixedly connected to the top of the support plate.

[0011] As a preferred technical solution of this utility model, a through groove is provided in the middle of the bearing plate; an air guide plate is fixedly connected to the bottom of the bearing plate.

[0012] As a preferred technical solution of this utility model, the rubber sleeve is hollow; the inside of the rubber sleeve is filled with a sand layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The chassis structure based on an electric drive axle described in this utility model, through the setting of chassis frame, bearing plate, hydraulic cylinder, slide groove, limit frame and battery box, allows the battery box to be disassembled and replaced when the truck's power is insufficient, thereby quickly replenishing the vehicle's power and saving the time spent waiting for the vehicle to charge at the charging site.

[0015] 2. The chassis structure based on the electric drive bridge described in this utility model, through the setting of convex strips, shafts, sleeves, and rubber sleeves, can reduce the wear on the surface of the battery box during installation and reduce the occurrence of obstruction of the descent of the limit frame due to high friction. Attached Figure Description

[0016] Figure 1 A schematic diagram of the chassis structure based on the electric drive axle provided by this utility model;

[0017] Figure 2 A schematic diagram of the chute structure for the chassis structure based on the electric drive bridge provided by this utility model;

[0018] Figure 3 A schematic diagram of the limiting frame structure for the chassis structure based on the electric drive axle provided by this utility model;

[0019] Figure 4 A schematic diagram of the load-bearing plate structure of the chassis structure based on the electric drive axle provided by this utility model;

[0020] Figure 5 A schematic diagram of the rubber sleeve structure of the chassis structure based on the electric drive bridge provided by this utility model;

[0021] Figure 6 A schematic diagram of the guide roller structure of the chassis structure based on the electric drive bridge provided by this utility model.

[0022] The diagram shows: 1. Chassis frame; 12. Bearing plate; 13. Hydraulic cylinder; 14. Slide groove; 15. Limiting frame; 16. Battery box; 2. Raised strip; 21. Shaft; 22. Sleeve; 23. Rubber sleeve; 3. Slot; 31. Guide groove; 32. Fixing frame; 33. Guide roller; 4. Mounting strip; 41. Connecting block; 42. Protective curtain; 5. Ventilation groove; 51. Support strip; 6. Through groove; 61. Air guide plate; 7. Filling sand layer. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0024] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] like Figures 1-6As shown, this embodiment proposes a chassis structure based on an electric drive axle, including a chassis frame 1; bearing plates 12 are fixedly connected to the bottom of both sides of the chassis frame 1; hydraulic cylinders 13 are fixedly connected to the top of the bearing plates 12; sliding grooves 14 are provided in the middle of both sides of the chassis frame 1; a limiting frame 15 is slidably connected to the middle of the sliding groove 14; the limiting frame 15 is located at the top of the hydraulic cylinder 13; a battery box 16 is detachably installed on the top of the bearing plate 12; when installing the battery box 16, the limiting frame 15 is first lifted by extending the hydraulic cylinder 13, and then the battery box 16 is moved using a forklift or other device. The battery is placed on the support plate 12, and then the hydraulic cylinder 13 retracts to cause the limiting frame 15 to fall and fit into the middle of the battery box 16, making it difficult for the battery box 16 to move. When it is necessary to remove the battery box 16 for battery replacement, first disconnect the wires connected to the battery box 16, then operate the hydraulic cylinder 13 to raise the limiting frame 15, and then remove the battery box 16 for replacement. With the above structure, the battery box 16 can be removed and replaced when the truck's power is insufficient, thereby quickly replenishing the vehicle's power and saving the time spent waiting for charging at the charging station.

[0028] like Figures 1-5 As shown, multiple pairs of protruding strips 2 are fixedly connected to the side wall of the chassis frame 1; multiple shafts 21 are fixedly connected between each pair of protruding strips 2; a sleeve 22 is rotatably connected to the middle of the shaft 21; a rubber sleeve 23 is fixedly connected to the middle of the sleeve 22; during operation, when using forklifts or other tools to lift the battery box 16 towards the support plate 12, it is difficult to control the position of the battery box 16, and the side wall of the battery box 16 is prone to abutting against the side wall of the limiting frame 15, thus causing damage to the battery box 16 when it falls or the limiting frame 15 descends. The surface of the battery box 16 is worn. However, through the arrangement of the shaft 21, sleeve 22, and rubber sleeve 23, the side wall of the battery box 16 will only contact the rubber sleeve 23. When the battery box 16 falls onto the support plate 12, the rubber sleeve 23 and sleeve 22 will rotate due to friction, thereby reducing the wear on the surface of the battery box 16. With the above structure, the wear on the surface of the battery box 16 can be reduced during the installation of the battery box 16, and the occurrence of the limit frame 15 being blocked from descending due to large friction can be reduced.

[0029] like Figures 1-6As shown, a slot 3 is provided at the bottom of the battery box 16; guide grooves 31 are provided at the bottom of both sides of the slot 3; a fixed frame 32 is fixedly connected to the top of the support plate 12; a guide roller 33 is rotatably connected to the middle of the fixed frame 32; during operation, when the battery box 16 is moved onto the support plate 12 by a forklift or other tools and is ready to be lowered, the position of the battery box 16 may have a certain deviation. When the deviation is small, as the battery box 16 is lowered, the guide roller 33 will contact the guide groove 31 and squeeze against each other. Then the battery box 16 will be forced to move a certain distance on the steel fork of the forklift, and the guide roller 33 can be inserted into the slot 3. At this time, the position where the battery box 16 falls is positioned by the rubber sleeve 23 and the guide roller 33, so that the limiting frame 15, which is slightly larger than the battery box 16, can accurately fit the battery box 16 when it is lowered. Through the above structure, the position of the battery box 16 falling on the support plate 12 can be positioned, so that the limiting frame 15 can accurately fit the battery box 16, improving the ease of use of the device.

[0030] like Figures 1-6 As shown, an installation strip 4 is fixedly connected to the side wall of the limiting frame 15; multiple connecting blocks 41 are detachably installed in the middle of the installation strip 4; a protective curtain 42 is fixedly connected to the bottom of the connecting block 41; during operation, the multiple connecting blocks 41 can be installed or removed according to the location where the vehicle frequently travels. When the multiple connecting blocks 41 are installed on the installation strip 4, the multiple protective curtains 42 cooperate with each other to block some of the mud splashed when the vehicle is driving, making it difficult for this mud to fall onto the surface of the battery box 16. The airflow during driving can enter through the gaps between the multiple protective curtains 42 to dissipate heat from the battery box 16. When the vehicle frequently travels in areas with good road conditions, the multiple connecting blocks 41 can be removed. Through the above structure, when the vehicle frequently travels in areas with poor road conditions, multiple protective curtains 42 can be installed to block some of the splashed mud, reducing the occurrence of mud falling onto the battery box 16 and causing corrosion or solidification on the surface of the battery box 16, resulting in a significant decrease in heat dissipation.

[0031] like Figures 1-6 As shown, the battery box 16 has multiple ventilation slots 5 in the middle; the bottom of the ventilation slots 5 is connected to the slot 3; the top of the support plate 12 is fixed with a support bar 51; during operation, when the vehicle is in motion, the surrounding air will rush into the space between the multiple support bars 51 to dissipate heat from the bottom of the battery box 16, and at the same time, some air will circulate in the slot 3 and the ventilation slots 5, thereby dissipating heat from the battery packs located on both sides of the ventilation slots 5. Through the above structure, the heat exchange area between the flowing air and the surface of the battery box 16 can be increased when the vehicle is in motion, thereby improving the heat dissipation effect on the battery packs inside the battery box 16.

[0032] like Figures 1-6As shown, a through groove 6 is provided in the middle of the support plate 12; an air guide plate 61 is fixed to the bottom of the support plate 12; during operation, when the vehicle is moving, some air will be blocked and guided by the air guide plate 61. This part of the airflow will rush to the slot 3 after passing through the through groove 6, thereby increasing the air flow rate in the slot 3 and the ventilation groove 5. Through the above structure, the air flow rate in the slot 3 and the ventilation groove 5 can be increased, thereby increasing the heat dissipation speed of the battery pack inside the battery box 16.

[0033] like Figure 5 As shown, the sleeve 23 is hollow; the inside of the sleeve 23 is filled with a sand layer 7; through the above structure, when the battery box 16 comes into contact with multiple sleeves 23, the impact damage to the surface of the battery box 16 during contact is reduced by the pressure deformation of the sand layer 7.

[0034] Specifically, when using this chassis structure based on the electric drive axle: When installing the battery box 16, the hydraulic cylinder 13 extends to lift the limiting frame 15. Then, a forklift or similar device is used to move the battery box 16 onto the support plate 12. Subsequently, the hydraulic cylinder 13 retracts to lower the limiting frame 15 and place it around the middle of the battery box 16, making it difficult to move. When it is necessary to disassemble the battery box 16 for battery replacement, the wiring connected to the battery box 16 is disconnected first. Then, the hydraulic cylinder 13 is operated to raise the limiting frame 15, and the battery box 16 is then removed for replacement. When using a forklift or similar tool to lift the battery box 16 towards the support plate 12, it is difficult to position the battery box 16. The placement of the battery box 16 is controlled. The side wall of the battery box 16 can easily abut against the side wall of the limiting frame 15, causing surface wear on the battery box 16 when it falls and the limiting frame 15 descends. However, the arrangement of the shaft 21, sleeve 22, and rubber sleeve 23 ensures that the side wall of the battery box 16 only contacts the rubber sleeve 23. When the battery box 16 falls onto the support plate 12, the rubber sleeve 23 and sleeve 22 rotate due to friction, thus reducing surface wear on the battery box 16. When the battery box 16 is moved onto the support plate 12 using a forklift or other tools and is prepared for descent, the position of the battery box 16 may have a certain deviation. When the deviation is small, as the battery box 16 descends... The guide roller 33 contacts and presses against the guide groove 31, causing the battery box 16 to move a distance on the forklift's steel fork under force, allowing the guide roller 33 to sink into the slot 3. At this time, the position where the battery box 16 falls is positioned by the rubber sleeve 23 and the guide roller 33, so that the limiting frame 15, which is slightly larger than the battery box 16, can accurately fit the battery box 16 when it descends. Multiple connecting blocks 41 can be installed or removed depending on the location where the vehicle frequently travels. When multiple connecting blocks 41 are installed on the mounting strip 4, multiple protective curtains 42 work together to block some of the mud splashed during vehicle travel, making it difficult for this mud to be splashed. The air falls on the surface of the battery box 16, and the airflow during driving can enter through the gaps between the multiple protective curtains 42 to dissipate heat from the battery box 16. When the vehicle is frequently driven in areas with good road conditions, the multiple connecting blocks 41 can be removed. When the vehicle is driving, the surrounding air will rush into the space between the multiple support bars 51 to dissipate heat from the bottom of the battery box 16. At the same time, some air will circulate in the slot 3 and ventilation groove 5, thereby dissipating heat from the battery packs located on both sides of the ventilation groove 5. When the vehicle is driving, some air will be blocked and directed by the air guide plate 61. This part of the airflow will rush to the slot 3 after passing through the channel 6, thereby increasing the airflow speed in the slot 3 and ventilation groove 5.

[0035] All technical features in this embodiment can be freely combined according to actual needs.

[0036] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A chassis structure based on an electric drive axle, comprising a chassis frame (1), characterized in that, The bottom of both sides of the chassis frame (1) is fixedly connected to a bearing plate (12); the top of the bearing plate (12) is fixedly connected to a hydraulic cylinder (13); the middle of both sides of the chassis frame (1) is provided with a sliding groove (14); the middle of the sliding groove (14) is slidably connected to a limit frame (15); the limit frame (15) is located at the top of the hydraulic cylinder (13); a battery box (16) is detachably installed on the top of the bearing plate (12).

2. The chassis structure based on an electric drive axle according to claim 1, characterized in that: The side wall of the chassis frame (1) is fixed with multiple pairs of protruding strips (2); multiple shafts (21) are fixed between each pair of protruding strips (2); a sleeve (22) is rotatably connected to the middle of the shaft (21); a rubber sleeve (23) is fixed to the middle of the sleeve (22).

3. The chassis structure based on an electric drive axle according to claim 1, characterized in that: The bottom of the battery box (16) is provided with a slot (3); the bottom of both sides of the slot (3) is provided with guide grooves (31); the top of the support plate (12) is fixedly connected with a fixing frame (32); the middle of the fixing frame (32) is rotatably connected with a guide roller (33).

4. The chassis structure based on an electric drive axle according to claim 1, characterized in that: The side wall of the limiting frame (15) is fixedly connected to an installation strip (4); a plurality of connecting blocks (41) are detachably installed in the middle of the installation strip (4); a protective curtain (42) is fixedly connected to the bottom of the connecting block (41).

5. A chassis structure based on an electric drive axle according to claim 3, characterized in that: The battery box (16) has multiple ventilation slots (5) in the middle; the bottom of the ventilation slots (5) is connected to the slot (3); and a support strip (51) is fixed to the top of the support plate (12).

6. The chassis structure based on an electric drive axle according to claim 1, characterized in that: A through groove (6) is provided in the middle of the bearing plate (12); an air guide plate (61) is fixedly connected to the bottom of the bearing plate (12).

7. A chassis structure based on an electric drive axle according to claim 2, characterized in that: The rubber sleeve (23) is hollow; the inside of the rubber sleeve (23) is filled with a sand layer (7).

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