New energy electric cross-country racing bicycle

Abstract

The utility model belongs to the technical field of off-road vehicles, and particularly relates to a new energy electric off-road racing vehicle. The utility model provides a new energy electric cross-country racing car which comprises a racing car body, the racing car body comprises a chassis, a protective frame, a driving system, a transmission system, a damping system, a control system, a braking system and other mechanisms needed by conventional cross-country racing cars, a power battery assembly is arranged on the chassis, and the protective frame is arranged on the chassis. The power battery assembly is arranged at the rear position of the chassis, the power battery assembly is obliquely arranged, and the power battery assembly is obliquely arranged backwards. According to the utility model, the possibility that the power battery assembly is impacted and collided is avoided; the tension degree of the chain can be quickly adjusted according to the use condition; the device adapts to drivers with different heights; misoperation of the accelerator and the brake under complex bumpy road conditions is avoided; and front and rear braking force distribution can be quickly adjusted, and the device is more suitable for cross-country racing cars.

Description

Technical Field

[0001] This utility model belongs to the field of off-road vehicle technology, specifically referring to a new energy electric off-road rally car. Background Technology

[0002] Off-road rallying is a long-distance off-road vehicle competition. Off-road rally cars are vehicles used to participate in off-road rallying. Due to the long distances and poor road and environmental conditions of the races, the performance and quality of the cars are put to a high test.

[0003] Current racing cars are mainly driven by internal combustion engines, but internal combustion engines have low transmission efficiency, which reduces the performance of the vehicles. Therefore, new energy electric off-road rally cars are now being used. By using batteries with higher energy density and improving battery technology, not only is the range of the vehicles guaranteed, but the power output of electric off-road rally cars has also been significantly improved. By optimizing the combination of motor and battery, a stronger torque output has been achieved to adapt to complex off-road conditions.

[0004] However, the power batteries of current electric rally cars are all located under the chassis. When facing complex roads and environments, the batteries are prone to collisions, which in turn affects safety. Utility Model Content

[0005] In response to the above situation and to overcome the shortcomings of the existing technology, this utility model provides a new energy electric off-road rally car, which solves the problem that existing race car batteries are prone to collisions and thus cause safety issues. In addition, the race car's structure and handling are more adjustable, making it more suitable for off-road rally racing.

[0006] The technical solution adopted by this utility model is as follows: This utility model provides a new energy electric off-road rally car, including: a car body, the car body including a chassis, a protective frame, a drive system, a transmission system, a shock absorption system, a control system, a braking system, and other mechanisms required for conventional off-road rally cars. The chassis is equipped with a power battery assembly, which is located at the rear of the chassis. The power battery assembly is tilted and tilted backward. Traditionally, the battery is located on the chassis, which is prone to collision during driving, posing a great safety risk to the vehicle and personnel. By tilting the battery assembly backward, the probability of collision is reduced. In special circumstances, when the battery is hit by an object, the tilt of the battery guides the object and ejects it, reducing the impact force on the battery itself. At the same time, this design also avoids placing the battery close to the upper part of the vehicle, ensuring the design requirements of low center of gravity and high handling of the vehicle.

[0007] Further, to ensure stable power transmission and further improve the driving force of the vehicle, the transmission system of the racing car body adopts a chain transmission two-stage speed reduction design, and the transmission system comprises a driving motor, an intermediate shaft and a differential. Small sprockets are arranged on the driving motor and the output shaft. Large sprockets are arranged on the intermediate shaft. The small sprocket of the driving motor output shaft and the large sprocket of the intermediate shaft are connected by a chain.

[0008] The intermediate shaft is provided with a small sprocket, and the differential is connected with a large sprocket. The small sprocket of the intermediate shaft and the large sprocket of the differential are connected by a chain.

[0009] The power transmission route is: the small sprocket of the driving motor output shaft drives the large sprocket of the intermediate shaft, and then the small sprocket of the intermediate shaft drives the large sprocket on the differential housing, and finally the power is transmitted to the two driving wheels.

[0010] Further, the number of teeth of the large sprocket of the intermediate shaft is greater than the number of teeth of the small sprocket of the driving motor, and the number of teeth of the large sprocket of the differential is greater than the number of teeth of the small sprocket of the intermediate shaft.

[0011] Further, since the chain has a certain amount of stretching deformation during the operation of the chain transmission, the length of the chain will gradually increase, and the vibration of the chain during transmission will increase. Therefore, the position of the intermediate shaft needs to be adjusted regularly to tension the chain. A quick adjustable tensioning mechanism is connected to the intermediate shaft. The quick adjustable tensioning mechanism comprises a bearing seat, an adjusting sliding groove, an adjusting bolt and a fixing bolt. The intermediate shaft is connected with the bearing seat at both ends. The bearing seat is slidingly connected in the adjusting sliding groove. The adjusting bolt is connected to the adjusting sliding groove. The adjusting bolt is located below the bearing seat. When the adjusting bolt is screwed, the adjusting bolt lifts the bearing seat, and the position of the bearing seat is adjusted. The fixing bolt is connected to the adjusting sliding groove. When the fixing bolt is tightened, the fixing bolt fixes the bearing seat.

[0012] When the chain is loose, loosen the fixing bolt, move the bearing seat, and tighten the adjusting bolt to lift the bearing seat upward. Tighten the fixing bolt to fix the bearing seat. At this time, the intermediate shaft moves upward, and the chain is tensioned.

[0013] Further, the accelerator and brake pedals of the control system adopt a front and rear position adjustable system. The accelerator pedal and the brake pedal can be adjusted forward and backward to adapt to drivers of different heights.

[0014] Further, folding limiters are arranged on both sides of the brake pedal and the accelerator pedal. When the brake pedal and the accelerator pedal are not used, the folding limiters can avoid misoperation of the accelerator and brake under complex and bumpy road conditions, and improve driving safety.

[0015] Further, the brake system adopts a front and rear axle independent double brake circuit system, comprising two brake master cylinders and a brake force distribution mechanism, the two brake master cylinders are respectively front and rear master cylinders, and the two brake master cylinders are arranged side by side, and the two master cylinders are connected with front and rear brakes through oil paths; the brake force distribution mechanism comprises a balance bar, a U-shaped buckle, a joint bearing and a brake pedal shaft sleeve, the balance bar is connected with the brake pedal, the joint bearing is sleeved in the brake pedal shaft sleeve, fixed ring clamps are arranged on both sides of the brake pedal shaft sleeve, the balance bar passes through and is fixed on the joint bearing, the balance bar is a threaded rod, master cylinder push rods are arranged on the two brake master cylinders, the master cylinder push rods are connected with the U-shaped buckle, a connecting shaft is arranged on the U-shaped buckle, the balance bar passes through the connecting shaft of the U-shaped buckle, nuts are arranged on both sides of the balance bar, and adjustment of the balance bar is controlled by an instrument knob in the racing car body.

[0016] When different driving conditions are coped with and the front and rear axle brake force distribution ratio needs to be quickly adjusted, the driver can twist the adjustment knob on the instrument desk, the balance bar is rotated and axially moved left and right through the soft shaft, the joint bearing on the balance bar in the brake pedal shaft sleeve moves left and right together, the fulcrum position of the brake pedal connected between the left and right brake master cylinder push rods is changed, and the front and rear brake force distribution is quickly adjusted.

[0017] The beneficial effects achieved by the above structure are as follows: the new energy electric off-road rally car provided by the scheme sets an inclined battery layout for driving, avoids the possibility that the power battery assembly is impacted and collided, and has the functions of bouncing or guiding the collision object out of the bottom of the car along the inclined surface and resolving the impact force; the quick adjustable tensioning mechanism can automatically adjust the tension of the chain according to the use condition, avoids the influence of the stretching deformation of the chain caused by long-time use on the performance and safety of the equipment; the accelerator and brake pedal are designed to be adjustable in front and rear positions, suitable for drivers of different heights; the accelerator and brake pedal surfaces are designed to be folded and limited on both sides, avoiding misoperation of the accelerator and brake under complex and bumpy road conditions, and improving driving safety; the brake system adopts a front and rear axle independent double brake circuit design, and the adjustable brake force distribution mechanism is arranged to quickly adjust the front and rear brake force distribution, more suitable for off-road rally cars. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the overall structure of the scheme;

[0019] Figure 2 It is an enlarged view of A in the figure; Figure 1

[0020] Figure 3 It is a schematic view of the structure of the transmission system;

[0021] Figure 4 ​The structure schematic diagram of the quick adjustable tensioning mechanism;

[0022] Figure 5 The schematic diagram of the front and rear position adjustable system of the accelerator and brake pedal;

[0023] Figure 6 The system diagram of the independent double brake circuit of the front and rear axle;

[0024] Figure 7 The structure schematic diagram of the brake force distribution mechanism diagram.

[0025] Wherein, 1, race car body; 2, power battery assembly;3, drive motor;4, intermediate shaft;5, differential;6, bearing seat;7, adjusting sliding groove;8, adjusting bolt;9, fixing bolt;10, adjusting track;11, accelerator pedal;12, brake pedal;13, front master cylinder;14, rear master cylinder;15, front brake;16, rear brake;17, brake force distribution mechanism;18, balance bar;19, U-shaped buckle;20, knuckle bearing;21, brake pedal shaft sleeve;22, fixed ring clamp;23, master cylinder push rod;24, connecting shaft;25, nut

[0026] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application;Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "in", "out" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present application.

[0029] The utility model provides a new energy electric off-road rally car, including: the car body 1, the car body 1 includes chassis, guard frame, drive system, transmission system, damping system, control system, brake system and other conventional off-road rally car required mechanism, be equipped with power battery assembly 2 on the chassis, power battery assembly 2 is in the rear position of chassis, power battery assembly 2 is arranged obliquely, power battery assembly 2 is arranged obliquely to the back, traditional battery is arranged on the chassis, in the process of driving, it is easy to collide, and it is easy to cause the big security risk to vehicle and personnel, and the form of setting back the battery assembly obliquely, first, the probability of collision is reduced, and in special circumstances, when battery is collided by object, because of the inclination of battery, the object is bounced out, and the collision force to the battery itself is reduced, simultaneously, the design also avoids arranging the battery in the position close to the upper part of vehicle, guarantees the design demand of low gravity center of vehicle, high controllability.

[0030] Wherein, in order to ensure stable power transmission, further improve the driving force of vehicle, the transmission system of the car body 1 adopts chain transmission two-stage reduction design, and the transmission system includes drive motor 3, intermediate shaft 4 and differential 5, the drive motor 3 and output shaft are connected with small sprocket, the intermediate shaft 4 is connected with large sprocket, and the small sprocket of the output shaft of the drive motor 3 and the large sprocket of the intermediate shaft 4 are connected through a chain; in the embodiment, the total transmission ratio of chain transmission two-stage reduction is 6.67.

[0031] The intermediate shaft 4 is provided with a small sprocket, and the differential 5 is connected with a large sprocket, and the small sprocket of the intermediate shaft 4 and the large sprocket of the differential 5 are connected through a chain;

[0032] The power transmission route is that the small sprocket of the output shaft of the drive motor 3 drives the large sprocket of the intermediate shaft 4, then the small sprocket of the intermediate shaft 4 drives the large sprocket on the differential 5 shell, and finally the power is transmitted to the two drive wheels;

[0033] The number of teeth of the large sprocket of the intermediate shaft 4 is greater than that of the small sprocket on the drive motor 3, and the number of teeth of the large sprocket on the differential 5 is greater than that of the small sprocket on the intermediate shaft 4.

[0034] Because the chain has a certain amount of stretch deformation in the process of driving, the length of the chain will gradually increase, and the chain vibration will become larger in the process of driving, so the position of the intermediate shaft 4 needs to be adjusted regularly to tension the chain. The intermediate shaft 4 is connected with a quick adjustable tensioning mechanism, the quick adjustable tensioning mechanism comprises a bearing seat 6, an adjusting sliding groove 7, an adjusting bolt 8 and a fixing bolt 9, the two ends of the intermediate shaft 4 are connected with the bearing seat 6, the bearing seat 6 is slidably connected in the adjusting sliding groove 7, the adjusting bolt 8 is connected to the adjusting sliding groove 7, the adjusting bolt 8 is located below the bearing seat 6, when the adjusting bolt 8 is screwed, the adjusting bolt 8 will lift the bearing seat 6, and the position of the bearing seat 6 is adjusted, and the fixing bolt 9 is connected to the adjusting sliding groove 7, when the fixing bolt 9 is tightened, the fixing bolt 9 fixes the bearing seat 6.

[0035] When the chain is loose, the fixing bolt 9 is loosened, the bearing seat 6 can be moved, the adjusting bolt 8 is screwed upwards, the bearing seat 6 is lifted upwards, the fixing bolt 9 is tightened, and the bearing seat 6 is fixed, at this time, the intermediate shaft 4 moves upwards, and the chain is tensioned.

[0036] The accelerator pedal and brake pedal 12 of the control system adopts a front and rear position adjustable system, comprising an adjusting track 10, the accelerator pedal 11 and brake pedal 12 can be adjusted and moved on the adjusting track 10, and the adjusting track 10 is provided with a mechanism for adjusting and fixing the accelerator pedal and brake pedal 12, so as to adapt to drivers of different heights.

[0037] The brake pedal 12 and the accelerator pedal 11 are provided with folding limiters on both sides, so that when the brake pedal 12 and the accelerator pedal 11 are not used, the accelerator and brake misoperation under complex and bumpy road conditions can be avoided, and the driving safety is improved.

[0038] The brake system adopts a front and rear axle independent double brake circuit system, comprising two brake master cylinders and a brake force distribution mechanism 17, the two brake master cylinders are a front master cylinder 13 and a rear master cylinder 14, and the two brake master cylinders are arranged side by side, and the two master cylinders are connected with a front brake 15 and a rear brake 16 through an oil circuit; the brake force distribution mechanism 17 comprises a balance bar 18, a U-shaped buckle 19, a joint bearing 20 and a brake pedal shaft sleeve 21, the balance bar 18 is connected with the brake pedal 12, the joint bearing 20 is sleeved in the brake pedal shaft sleeve 21, the brake pedal shaft sleeve 21 is provided with a fixed ring clamp 22 on both sides, the balance bar 18 passes through and is fixed on the joint bearing 20, the balance bar 18 is a threaded rod, the two brake master cylinders are provided with a master cylinder push rod 23, the master cylinder push rod 23 is connected with the U-shaped buckle 19, the U-shaped buckle 19 is provided with a connecting shaft 24, the balance bar 18 passes through the connecting shaft 24 of the U-shaped buckle 19, the balance bar 18 is provided with a nut 25 on both sides, and the adjustment of the balance bar 18 is controlled by an instrument knob in the racing car body 1.

[0039] When different driving conditions are coped with and the front and rear axle braking force distribution ratio needs to be quickly adjusted, the driver can twist the adjusting knob on the instrument desk, the balance lever 18 is rotated and axially moved left and right, the joint bearing 20 on the balance lever 18 sleeved in the brake pedal shaft sleeve 21 moves left and right together, the fulcrum position of the brake pedal 12 connected between the left and right brake master cylinder push rods 23 is changed, and the front and rear braking force distribution is quickly adjusted. The utility model and its implementation mode are described above, and the description is not restrictive, and the shown in the drawings is only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if the ordinary skilled person in the art is inspired, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A new energy electric off-road rally car, characterized in that, It includes: The racing car body (1) includes chassis, guard frame, drive system, transmission system, damping system, control system, brake system, the transmission system of the racing car body (1) adopts chain transmission two-stage speed reduction design, transmission system includes drive motor (3), intermediate shaft (4) and differential (5), the drive motor (3) and output shaft are connected with small sprocket, the intermediate shaft (4) is connected with large sprocket, the small sprocket of drive motor (3) output shaft and the large sprocket of intermediate shaft (4) are connected by chain;The intermediate shaft (4) is provided with a small sprocket, the differential (5) is connected with a large sprocket, the small sprocket of intermediate shaft (4) and the large sprocket of differential (5) are connected by chain;The chassis is provided with power battery assembly (2), the power battery assembly (2) is located at the rear position of chassis, the power battery assembly (2) is inclinedly arranged, the power battery assembly (2) is inclinedly arranged towards rear.

2. The new energy electric off-road rally car according to claim 1, characterized in that: The intermediate shaft (4) is connected with quick adjustable tensioning mechanism, the quick adjustable tensioning mechanism includes bearing seat (6), adjusting sliding groove (7), adjusting bolt (8) and fixed bolt (9), the intermediate shaft (4) both ends connecting shaft (24) bearing seat (6), the bearing seat (6) is slidably connected in adjusting sliding groove (7), the adjusting bolt (8) is connected on adjusting sliding groove (7), the adjusting bolt (8) is located below bearing seat (6), when the adjusting bolt (8) is screwed, the adjusting bolt (8) lifts bearing seat (6), the fixed bolt (9) is connected on adjusting sliding groove (7), when the fixed bolt (9) is tightened, the fixed bolt (9) fixes bearing seat (6).

3. The new energy electric off-road rally car according to claim 1, characterized in that: The brake system adopts front and rear axle independent double brake circuit system, including two brake master cylinders and brake force distribution mechanism (17), two brake master cylinders are front master cylinder (13) and rear master cylinder (14) respectively, and two brake master cylinders are arranged side by side, two master cylinders are connected through oil circuit with front brake (15) and rear brake (16) respectively;The brake force distribution mechanism (17) includes balance bar (18), U-shaped buckle (19), joint bearing (20) and brake pedal shaft sleeve (21), the balance bar (18) is connected with brake pedal (12), the joint bearing (20) is sleeved in brake pedal shaft sleeve (21), the brake pedal shaft sleeve (21) is provided with fixed ring clamp (22) on both sides, the balance bar (18) passes through and is fixed on joint bearing (20), the balance bar (18) is threaded rod, two brake master cylinders are provided with master cylinder push rod (23), the master cylinder push rod (23) is connected with U-shaped buckle (19), the U-shaped buckle (19) is provided with connecting shaft (24), the balance bar (18) passes through the connecting shaft (24) of U-shaped buckle (19), the balance bar (18) is provided with nut (25) on both sides, the balance bar (18) is adjusted by the instrument knob in racing car body (1).

4. The new energy electric off-road rally car according to claim 1, characterized in that: The number of gear teeth of the large sprocket of the intermediate shaft (4) is greater than the number of gear teeth of the small sprocket of the driving motor (3), and the number of gear teeth of the large sprocket of the differential (5) is greater than the number of gear teeth of the small sprocket of the intermediate shaft (4).

5. The new energy electric off-road rally car according to claim 1, characterized in that: The accelerator and brake pedals (12) of the control system are designed to be adjustable in front and back positions.

6. The new energy electric off-road rally car according to claim 5, characterized in that: The brake pedal (12) and the accelerator pedal (11) are provided with folding limiters on both sides.

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