Master pin steering type high-integration angle module

Abstract

The invention discloses a kingpin steering type high-integration-angle module which comprises a driving system, a steering system and a steering system. The driving system is installed on wheels and used for transmitting power to the wheels to drive a chassis to run. The suspension system is used for connecting the driving system and the steering system and comprises a support and an elastic damping element, the elastic damping element is installed at the lower end of the support, and the lower end of the elastic damping element is connected with the driving system; the steering system comprises a supporting sleeve assembly rotatably installed on the support and an electric steering gear installed on the supporting sleeve assembly, and steering torque is output to the support through the electric steering gear, so that steering of the wheels is achieved. The structure is compact, the modularization level of the whole vehicle can be greatly increased, the space utilization rate of the whole vehicle is increased, flexible combination and expansion can be conducted according to the loading size, weight, mass center and the like, the wheels can have the large-angle steering capacity, and the trafficability of the whole vehicle is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle equipment, and in particular to a kingpin steering type highly integrated angle module. Background Art

[0002] At present, compared with the mechanical drive chassis, the multi-axle heavy-duty electric drive chassis has added power batteries, drive motors, generators, high and low voltage distribution boxes, vehicle and system-level controllers, thermal management systems, etc. However, the electric drive chassis has many parts, complex composition, and complex connections between them, which makes it occupy a large space in the vehicle.

[0003] Therefore, how to design a kingpin steering type highly integrated angle module that can solve the above problems is an issue that needs to be solved urgently. Summary of the invention

[0004] The purpose of the present invention is to provide a kingpin steering type highly integrated angle module, which has a compact structure, can greatly increase the modularization level of the whole vehicle, improve the space utilization rate of the whole vehicle, can be flexibly combined and expanded according to the size, weight, center of mass, etc. of the upper body, can enable the wheels to have a large angle steering capability, and improve the passability of the whole vehicle.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a kingpin steering type highly integrated angle module, comprising:

[0006] Drive system: installed on the wheels, used to transmit power to the wheels and drive the chassis to move;

[0007] Suspension system: used to connect the driving system and the steering system, the suspension system comprises a bracket and an elastic damping element, the elastic damping element is mounted on the lower end of the bracket, and the lower end of the elastic damping element is connected to the driving system;

[0008] Steering system: includes a support sleeve assembly rotatably mounted on the support and an electric steering gear mounted on the support sleeve assembly, through which the steering torque is output to the support, thereby achieving the steering of the wheel.

[0009] The present invention provides a kingpin steering type highly integrated angle module, wherein the elastic damping element adopts at least one oil-gas spring, and the upper and lower ends of the oil-gas spring are respectively connected to the bracket and the driving system.

[0010] The present invention discloses a kingpin steering type highly integrated angle module, wherein the driving system adopts an electric wheel, the electric wheel is installed in the rim of the wheel, and the outer side of the electric wheel is detachably connected to the spoke plate of the rim.

[0011] The present invention provides a kingpin steering type highly integrated angle module, wherein the lower end of the oil-gas spring is mounted on the steering knuckle of the electric wheel.

[0012] The present invention discloses a kingpin-steering high-integration angle module, wherein the electric steering gear adopts a kingpin-steering electric steering gear, and the steering kingpin of the electric steering gear is located directly above the wheel center of the wheel.

[0013] The present invention provides a kingpin steering type high-integration angle module, wherein the support sleeve assembly includes a support sleeve, the bracket includes a bracket body and a support column arranged on the bracket body, the support sleeve is installed on the outer surface of the support column, and the electric steering gear is connected to the top of the support sleeve.

[0014] The present invention provides a kingpin steering type high-integration angle module, wherein a tapered roller bearing is arranged between the support sleeve and the support column.

[0015] The present invention provides a kingpin steering type high-integration angle module, wherein a locking nut for fixing the bracket and the tapered roller bearing is arranged on the upper part of the support column, and the locking nut is located above the tapered roller bearing.

[0016] The present invention discloses a kingpin steering type high-integration angle module, wherein the lower end of the electric steering gear is provided with an external conical tooth output shaft, the upper end of the support column is provided with an internal conical tooth opening groove, the output shaft is meshed with the opening groove, and the steering torque is output to the bracket through the electric steering gear to realize the steering of the wheels.

[0017] The present invention provides a kingpin steering type high-integration angle module, which also includes a braking system, including a brake disc and a brake cylinder. The brake disc and the brake cylinder are integrated in the drive system and are used to brake the wheels.

[0018] After adopting the above scheme, the kingpin steering high-integration corner module of the present invention integrates the drive system, suspension system, steering system and brake system on the wheel edge. Its structural design is compact, so that the inner side of the frame longitudinal beam becomes a complete space, which is more conducive to the layout of large-size electrical equipment and power batteries; the corner module can be flexibly combined and expanded according to the size, weight, center of mass, etc. of the upper body. It is used in a distributed modular electric drive chassis, which can greatly improve the chassis space utilization rate, improve integration, modularization and scalability, and meet the transportation needs of various upper bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a kingpin steering type highly integrated angle module of the present invention;

[0020] Figure 2 It is a side view structural schematic diagram of a kingpin steering type highly integrated angle module embodiment of the present invention;

[0021] Figure 3It is a cross-sectional structural schematic diagram of the steering system of the present invention.

[0022] Number Description:

[0023] 1-wheel 2-electric wheel

[0024] 3- Rim 4- Bracket

[0025] 5-Stand body 6-Support column

[0026] 7-Hydro-pneumatic spring 8-Steering knuckle

[0027] 9-Support sleeve assembly 10-Electric steering gear

[0028] 11-Support sleeve 12-Tapered roller bearing

[0029] 13-locking nut 14-output shaft

[0030] 15-Open slot DETAILED DESCRIPTION

[0031] The present invention is described below based on the embodiments shown in the accompanying drawings. The embodiments disclosed this time can be considered to be illustrative in all aspects and not restrictive. The scope of the present invention is not limited by the description of the following embodiments, but is only shown by the scope of the claims, and includes all modifications with the same meaning as the scope of the claims and within the scope of the claims.

[0032] The structure of a kingpin steering type highly integrated angle module of the present invention is described below in conjunction with specific embodiments.

[0033] like Figure 1 , Figure 2 The three-dimensional structural diagram and the side structural diagram of a kingpin steering high-integration angle module embodiment of the present invention are shown, including a drive system, a suspension system, a steering system and a braking system, which are used to realize the functions of driving, vibration reduction, steering and braking.

[0034] The drive system is installed on the wheel 1, and is used to convert electrical energy into mechanical energy and transmit power to the wheel 1 to drive the chassis to travel. The drive system of this embodiment uses an electric wheel 2, which is installed in the rim 3 of the wheel 1. The outer side of the electric wheel 2 is connected to the spoke plate of the rim 3 through multiple bolts and nuts.

[0035] The suspension system is used to connect the drive system and the steering system. The suspension system of this embodiment adopts a candle-type suspension structure. The suspension system includes a bracket 4 and an elastic damping element. The bracket 4 of this embodiment includes an inverted L-shaped plate-shaped bracket body 5 and a support column 6 arranged on the upper surface of the bracket body 5. The bracket body 5 and the support column 6 of this embodiment are processed as a whole to form the bracket 4. The elastic damping element of this embodiment adopts two oil-gas springs 7. The upper end of each oil-gas spring 7 is respectively connected to the lower end of the bracket body 5 by bolts, and the lower end of the oil-gas spring 7 is installed on the lower part of the steering knuckle 8 of the electric wheel 2 by bolts. The oil-gas spring 7 not only plays a role in buffering and vibration reduction, but also the outer cylinder of the oil-gas spring 7 is a guide device for the up and down jumping of the wheel 1.

[0036] The steering system adopts a distributed wire control steering solution. The steering system includes a support sleeve assembly 9 rotatably mounted on the upper surface of the bracket body 5 and an electric steering gear 10 mounted on the support sleeve assembly 9. The electric steering gear 10 adopts a kingpin steering type electric steering gear. The electric steering gear 10 is arranged above the center of the wheel 1, and can drive the corner module of the present invention to steer as a whole around its steering kingpin. The steering kingpin of the electric steering gear 10 is located directly above the wheel center of the wheel 1, ensuring that the swept area is minimized when the wheel 1 rotates at the same angle.

[0037] refer to Figure 3 As shown, the support sleeve assembly 9 includes a support sleeve 11, which is mounted on the outer surface of the support column 7 of the bracket 4, and the bottom of the electric steering gear 10 is mounted on the upper surface of the support sleeve 11 through a plurality of bolts. A tapered roller bearing 12 is arranged between the support sleeve 11 and the support column 7. In this embodiment, a pair of tapered roller bearings 12 are arranged, so that the support sleeve assembly 9 and the bracket 4 are rotatably connected together. On the one hand, the tapered roller bearing 12 is used to bear the vertical load when the wheel 1 bounces, the lateral load when turning, and the longitudinal load when accelerating / braking; on the other hand, it can realize the overall steering movement of the corner module. A locking nut 13 for fixing the bracket 4 and the tapered roller bearing 12 is arranged on the upper part of the support column 7, and the locking nut 13 is located above the tapered roller bearing 12. An outer conical output shaft 14 is provided at the lower end of the electric steering gear 10, and an inner conical opening groove 15 is provided at the upper end of the support column 7. The output shaft 14 is meshed with the opening groove 15, and the steering torque is output to the bracket 4 through the electric steering gear 10, thereby realizing the steering of the wheel 1.

[0038] The braking system adopts an electromechanical composite braking solution, including a brake disc and a brake cylinder, which are integrated in the electric wheel 2 and are used to brake the wheel 1. The service brake of the braking system adopts a hybrid working mode of electronic hydraulic wire control brake (EHB) and motor anti-drag brake. During service braking, the oil source power is transmitted to the brake cylinder in the electric wheel 2 through the hydraulic pipeline to achieve braking. The parking brake adopts a hand-operated, air-off / liquid-off energy storage spring action mode and is arranged at the wheel center on the inner side of the electric wheel 2.

[0039] The highly integrated candle-type suspension corner module of the present invention integrates the drive system, suspension system, steering system and brake system on the wheel edge of the wheel 1. Its compact structure makes the inner side of the frame longitudinal beam a complete space, which is more conducive to the layout of large-size electrical equipment and power batteries; the corner module can be flexibly combined and expanded according to the size, weight, center of mass, etc. of the upper body. It is used in a distributed modular electric drive chassis, which can greatly improve the chassis space utilization rate, improve integration, modularization and scalability, and meet the transportation needs of various upper bodies.

[0040] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope of the claims of the present invention.

Claims

1. A kingpin steering type highly integrated angle module, characterized in that: include: Drive system: installed on the wheels, used to transmit power to the wheels and drive the chassis to move; Suspension system: used to connect the driving system and the steering system, the suspension system comprises a bracket and an elastic damping element, the elastic damping element is mounted on the lower end of the bracket, and the lower end of the elastic damping element is connected to the driving system; Steering system: includes a support sleeve assembly rotatably mounted on the support and an electric steering gear mounted on the support sleeve assembly, through which the steering torque is output to the support, thereby achieving the steering of the wheel.

2. A kingpin steering high-integration angle module as claimed in claim 1, characterized in that: The elastic damping element adopts at least one oil-gas spring, and the upper and lower ends of the oil-gas spring are respectively connected to the bracket and the driving system.

3. A kingpin steering type highly integrated angle module as claimed in claim 2, characterized in that: The driving system adopts an electric wheel, which is installed in the rim of the wheel and the outer side of the electric wheel is detachably connected with the spoke plate of the rim.

4. The kingpin steering high-integration angle module according to claim 1, characterized in that: The lower end of the oil-gas spring is mounted on the steering knuckle of the electric wheel.

5. The kingpin steering high-integration angle module according to claim 1, characterized in that: The electric steering gear is a kingpin steering type electric steering gear, and the steering kingpin of the electric steering gear is located just above the wheel center of the wheel.

6. The kingpin steering high-integration angle module according to claim 1, characterized in that: The support sleeve assembly includes a support sleeve, the bracket includes a bracket body and a support column arranged on the bracket body, the support sleeve is installed on the outer surface of the support column, and the electric steering gear is connected to the upper surface of the support sleeve.

7. A kingpin steering type highly integrated angle module as claimed in claim 6, characterized in that: A tapered roller bearing is arranged between the support sleeve and the support column.

8. The kingpin steering high-integration angle module according to claim 7, characterized in that: A locking nut for fixing the bracket and the tapered roller bearing is arranged on the upper part of the support column, and the locking nut is located above the tapered roller bearing.

9. The kingpin steering high-integrated angle module according to claim 6, characterized in that: The lower end of the electric steering gear is provided with an external conical output shaft, the upper end of the support column is provided with an internal conical opening groove, the output shaft is meshed with the opening groove, and the steering torque is output to the bracket through the electric steering gear to achieve wheel steering.

10. The kingpin steering high-integration angle module according to claim 1, characterized in that: It also includes a braking system, including a brake disc and a brake cylinder, wherein the brake disc and the brake cylinder are integrated in the drive system and are used to brake the wheels.

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