High-integration candle type suspension corner module

Abstract

The invention discloses a high-integration candle type suspension angle module which comprises a driving system, a power transmission system, a power transmission system, a power transmission system, a power transmission system and a power transmission 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 a hydro-pneumatic spring, the hydro-pneumatic spring is installed on one side of the support, an up-down telescopic structure is arranged on the outer side of the hydro-pneumatic spring, and the lower end of the up-down telescopic structure 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 high-integration candle type suspension angle module is compact in structure, the integration level, the modularization level and the flexible expansion capacity of a whole vehicle can be improved, and the trafficability of the whole vehicle can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle equipment, and in particular to a highly integrated candle-type suspension 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 highly integrated candle-type suspension corner module that can optimize the vehicle layout and improve the space utilization of the vehicle is a problem that needs to be solved urgently. Summary of the invention

[0004] The object of the present invention is to provide a highly integrated candle-type suspension angle module, which has a compact structure and can improve the integration, modularization level and flexible expansion capability of the entire vehicle, and can improve the passability of the entire vehicle.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a highly integrated candle-type suspension 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 drive system and the steering system, the suspension system includes a bracket and an oil-gas spring, the oil-gas spring is installed on one side of the bracket, an upper and lower telescopic structure is arranged on the outer side of the oil-gas spring, and the lower end of the upper and lower telescopic structure is connected to the drive 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 highly integrated candle-type suspension angle module, wherein the upper and lower telescopic structures include an upper guide cylinder and a lower guide cylinder which are sleeved together and can slide up and down relatively, and the upper end of the upper guide cylinder and the lower end of the lower guide cylinder are respectively connected to the bracket and the drive system.

[0010] The present invention provides a highly integrated candle-type suspension angle module, which also includes a rotation limiting structure, wherein the rotation limiting structure includes an upper connecting swing arm and a lower connecting swing arm, wherein one end of the upper connecting swing arm is rotatably connected to the lower connecting swing arm, the other end of the upper connecting swing arm is rotatably connected to the side wall of the upper guide cylinder, and the other end of the lower connecting swing arm is rotatably connected to the drive system.

[0011] The present invention provides a highly integrated candle-type suspension angle module, wherein the upper side portion of the upper guide cylinder is clamped together with the side wall of the bracket through a concave-convex structure, and the upper end of the upper guide cylinder is connected to the side wall of the bracket through a clamp and a plurality of bolts.

[0012] The present invention provides a highly integrated candle-type suspension angle module, wherein the driving system adopts an electric wheel, the electric wheel is installed in the rim of the wheel, the outer side of the electric wheel is detachably connected to the spoke plate of the rim, and the lower end of the lower guide cylinder is connected to the steering knuckle of the electric wheel.

[0013] The present invention discloses a highly integrated candle-type suspension angle module, wherein the electric steering gear adopts a kingpin steering type electric steering gear, and the steering kingpin of the electric steering gear is located directly above the wheel center of the wheel.

[0014] The present invention provides a highly integrated candle-type suspension 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, the support sleeve and the support column are rotatably connected together through a tapered roller bearing, and the electric steering gear is connected to the top of the support sleeve.

[0015] The present invention provides a highly integrated candle-type suspension angle module, wherein the lower end of the electric steering gear is provided with an external tapered output shaft, the upper end of the support column is provided with an internal tapered 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 steering of the wheels.

[0016] The present invention provides a highly integrated candle-type suspension 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.

[0017] The present invention provides a highly integrated candle-type suspension angle module, wherein the upper surface of the bracket body is provided with pipeline holes.

[0018] The present invention provides a highly integrated candle-type suspension 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.

[0019] After adopting the above scheme, 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. 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

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a highly integrated candle-type suspension angle module of the present invention;

[0021] Figure 2 It is a side view structural schematic diagram of an embodiment of a highly integrated candle-type suspension angle module of the present invention;

[0022] Figure 3 is a cross-sectional structural schematic diagram of a steering system of the present invention;

[0023] Figure 4 is a schematic diagram of the upper three-dimensional structure of the suspension system of the present invention;

[0024] Figure 5 is a schematic diagram of a cross-sectional structure of an upper part of a suspension system of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional connection structure between the suspension system of the present invention and the driving system.

[0026] Number Description:

[0027] 1-wheel 2-electric wheel

[0028] 3- Rim 4- Bracket

[0029] 5-Hydro-gas spring 6-Bracket body

[0030] 7-Support column 8-Upper guide cylinder

[0031] 9-lower guide cylinder 10-upper connecting swing arm

[0032] 11-Lower connecting arm 12-Upper connecting seat

[0033] 13-steering knuckle 14-lower connecting seat

[0034] 15-flange 16-protrusion

[0035] 17-Step hole 18-Holding hoop

[0036] 19-Pipeline hole 20-Support sleeve assembly

[0037] 21-Electric steering gear 23-Support sleeve

[0038] 24-Tapered roller bearing 25-Locking nut

[0039] 26- output shaft 27- open slot DETAILED DESCRIPTION

[0040] 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.

[0041] The structure of a highly integrated candle-type suspension angle module of the present invention is described below in conjunction with specific embodiments.

[0042] like Figure 1 , Figure 2 The three-dimensional structural schematic diagram and the side structural schematic diagram of an embodiment of a highly integrated candle-type suspension corner module 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.

[0043] 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.

[0044] 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 based on a single oil-gas spring. It includes a bracket 4 and an oil-gas spring 5. The bracket 4 of this embodiment includes an inverted L-shaped bracket body 6 and a vertical support column 7 arranged on the upper surface of the bracket body 6. The bracket body 6 and the support column 7 of this embodiment are processed as a whole to form the bracket 4. Figure 1 , Figure 2 and Figure 6 As shown, the oil-gas spring 5 of the present invention is added with an upper and lower telescopic structure compared with the conventional oil-gas spring. The upper and lower telescopic structure of this embodiment includes an upper guide cylinder 8 and a lower guide cylinder 9, which are sleeved together in an upper and lower manner and can slide up and down relative to each other to realize the up and down jumping of the wheel 1. The oil-gas spring 5 is installed in the inner cavity of the upper guide cylinder 8 and the lower guide cylinder 9, and is located at the inner upper part of the steering knuckle 13 of the electric wheel 2. The upper and lower telescopic structure plays a guiding and bearing role for the oil-gas spring 5.

[0045] The upper guide cylinder 8 and the lower guide cylinder 9 are limited in relative rotational movement by a rotation-limiting structure. The rotation-limiting structure of this embodiment includes an upper connecting swing arm 10 and a lower connecting swing arm 11. An upper connecting seat 12 is provided on the side wall of the upper guide cylinder 8, one end of the upper connecting swing arm 10 is rotatably connected to the upper connecting seat 12 through a pin shaft, and the other end of the upper connecting swing arm 10 is rotatably connected to one end of the lower connecting swing arm 11 through a pin shaft. A lower connecting seat 14 is provided on the side wall of the steering knuckle 13 of the electric wheel 2, and the other end of the lower connecting swing arm 11 is rotatably connected to the lower connecting seat 14 through a pin shaft.

[0046] The lower end of the lower guide cylinder 9 and the upper end of the steering knuckle 13 are respectively provided with flanges 15 , and the lower guide cylinder 9 and the steering knuckle 13 are connected together by connecting the two flanges 15 through a plurality of bolts and nuts.

[0047] The upper side of the upper guide cylinder 8 is connected to the side wall of the bracket body 6 through a concave-convex structure. Figure 5 As shown, in this embodiment, a protrusion 16 extends outward from the upper right wall of the upper guide cylinder 8, and a stepped hole 17 is provided on the upper left wall of the bracket body 6. The protrusion 16 is inserted into the stepped hole 17 and abuts against the stepped surface of the stepped hole 17. The connection between the two not only plays a role in the installation and positioning of the oil-gas spring 5 and the bracket body 6, but also can bear vertical, longitudinal and lateral loads. The upper end of the upper guide cylinder 8 is fixedly mounted on the side of the bracket body 6, and the oil-gas spring 5 is connected to the bracket 4 through the upper guide cylinder 8. Figure 4 As shown, in this embodiment, the upper end of the upper guide cylinder 8 is detachably connected to the side wall of the bracket body 6 through a clamp 18 and a plurality of bolts and nuts.

[0048] A pipeline hole 19 is provided on the upper surface of the bracket body 6, and the pipeline hole 19 is used to lead the three-phase line, the rotating line and the cooling water pipe of the electric wheel 2 out from the electric wheel 2, go up along the edge of the bracket body 6, pass through the pipeline hole 19, and then be fixed to the frame or the crossbeam. The bracket 4 is connected to the frame or the crossbeam by multiple bolts.

[0049] The steering system adopts a distributed wire-controlled steering solution. The steering system includes a support sleeve assembly 20 rotatably mounted on the upper surface of the bracket body 6 and an electric steering gear 21 mounted on the support sleeve assembly 20. The electric steering gear 21 adopts a kingpin steering type electric steering gear, and the electric steering gear 21 is arranged above the center of the wheel 1, which 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 21 is located directly above the wheel center of the wheel 1 to ensure that the swept area is minimized when the wheel 1 rotates at the same angle. After the three-phase line, rotating line, and cooling water pipe of the above-mentioned electric wheel 2 pass through the pipeline hole 19, they are fixed to the frame or beam directly above the center of the steering kingpin to ensure that the length of the pipeline remains unchanged when the wheel is turned.

[0050] refer to Figure 3 As shown, the support sleeve assembly 20 includes a support sleeve 23, which is mounted on the outer surface of the support column 7 of the bracket 4, and the bottom of the electric steering gear 21 is mounted on the upper surface of the support sleeve 23 by bolts. A tapered roller bearing 24 is arranged between the support sleeve 23 and the support column 7. In this embodiment, a pair of tapered roller bearings 24 are arranged, so that the support sleeve assembly 20 and the bracket 4 are rotatably connected together. On the one hand, the tapered roller bearing 24 is used to bear the vertical load when the wheel 1 bounces, the lateral load when turning, and the longitudinal load during acceleration / braking; on the other hand, it can realize the overall steering movement of the corner module. A locking nut 25 for fixing the bracket 4 and the tapered roller bearing 24 is arranged on the upper part of the support column 7, and the locking nut 25 is located above the tapered roller bearing 24. The lower end of the electric steering gear 21 is provided with an external conical output shaft 26, and the upper end of the support column 7 is provided with an internal conical opening groove 27. The output shaft 26 is meshed with the opening groove 27, and the steering torque is output to the bracket 4 through the electric steering gear 21, thereby realizing the steering of the wheel 1.

[0051] 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.

[0052] 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 side of the wheel 1, so that the inner side of the frame longitudinal beam becomes a complete space, which is more conducive to the layout of large-sized 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.

[0053] 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 highly integrated candle-type suspension 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 drive system and the steering system, the suspension system includes a bracket and an oil-gas spring, the oil-gas spring is installed on one side of the bracket, an upper and lower telescopic structure is arranged on the outer side of the oil-gas spring, and the lower end of the upper and lower telescopic structure is connected to the drive 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 highly integrated candle-type suspension angle module as claimed in claim 1, characterized in that: The up-and-down telescopic structure comprises an upper guide cylinder and a lower guide cylinder which are sleeved together and can slide up and down relatively. The upper end of the upper guide cylinder and the lower end of the lower guide cylinder are connected to the bracket and the driving system respectively.

3. A highly integrated candle type suspension angle module as claimed in claim 2, characterized in that: It also includes a rotation limiting structure, which includes an upper connecting swing arm and a lower connecting swing arm, wherein the upper connecting swing arm is rotatably connected to one end of the lower connecting swing arm, the other end of the upper connecting swing arm is rotatably connected to the side wall of the upper guide cylinder, and the other end of the lower connecting swing arm is rotatably connected to the driving system.

4. A highly integrated candle-type suspension angle module as claimed in claim 2, characterized in that: The upper side portion of the upper guide cylinder is clamped with the side wall of the bracket through a concave-convex structure, and the upper end of the upper guide cylinder is connected with the side wall of the bracket through a clamp and a plurality of bolts.

5. The highly integrated candle-type suspension angle module according to claim 1, characterized in that: The driving system adopts an electric wheel, which is installed in the rim of the wheel, and its outer side is detachably connected to the spoke plate of the rim, and the lower end of the lower guide cylinder is connected to the steering knuckle of the electric wheel.

6. The highly integrated candle-type suspension 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.

7. The highly integrated candle-type suspension 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, the support sleeve and the support column are rotatably connected together through a tapered roller bearing, and the electric steering gear is connected to the top of the support sleeve.

8. The highly integrated candle-type suspension angle module according to claim 7, 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.

9. The highly integrated candle-type suspension 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.

10. The highly integrated candle-type suspension angle module according to claim 7, characterized in that: The upper surface of the bracket body is provided with a pipeline hole.

11. The highly integrated candle-type suspension 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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