阅读说明：本技术 车高自动调整装置 (Automatic vehicle height adjusting device ) 是由 周乾龙 李永波 刘永 张安霞 彭杰 王新辉 许晓丹 姚青山 孙利平 张全成 古晓 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种车高自动调整装置,包括设置在车架总成上的左侧车高调整单元和右侧车高调整单元,所述左侧车高调整单元和所述右侧车高调整单元的结构相同且对称设置；驱动机构,所述驱动机构用于同步驱动所述左侧车高调整单元和右侧车高调整单元进行车身高度调整；其中,所述驱动机构为双轴电机,所述双轴电机同步驱动所述左侧车高调整单元和右侧车高调整单元。本发明实现了两侧车高同步调整,操作方便,调整效率高,可满足不同驾驶者在不同路况下的驾驶需求,且车高数据能够实时监测和显示,方便与驾驶者进行信息交互,驾驶人员无需经过专业培训也可方便完成。(The invention discloses an automatic vehicle height adjusting device which comprises a left vehicle height adjusting unit and a right vehicle height adjusting unit, wherein the left vehicle height adjusting unit and the right vehicle height adjusting unit are arranged on a vehicle frame assembly and are identical in structure and are symmetrically arranged; the driving mechanism is used for synchronously driving the left vehicle height adjusting unit and the right vehicle height adjusting unit to adjust the height of the vehicle body; the driving mechanism is a double-shaft motor, and the double-shaft motor synchronously drives the left vehicle height adjusting unit and the right vehicle height adjusting unit. The invention realizes synchronous adjustment of vehicle heights on two sides, has convenient operation and high adjustment efficiency, can meet the driving requirements of different drivers under different road conditions, can monitor and display the vehicle height data in real time, is convenient for information interaction with the drivers, and can be conveniently completed by the drivers without professional training.)

1. The automatic vehicle height regulator includes one frame assembly

The left vehicle height adjusting unit and the right vehicle height adjusting unit are identical in structure and are symmetrically arranged;

the driving mechanism is used for synchronously driving the left vehicle height adjusting unit and the right vehicle height adjusting unit to adjust the height of the vehicle body;

the driving mechanism is a double-shaft motor, and the double-shaft motor synchronously drives the left vehicle height adjusting unit and the right vehicle height adjusting unit.

2. The automatic vehicle height adjusting device according to claim 1, wherein the structure of the left/right vehicle height adjusting unit comprises

A lower swing arm assembly;

a torsion bar spring;

the front end of the torsion bar spring is connected with the lower swing arm assembly through the fixed arm;

the rear end of the torsion bar spring is hinged with the frame assembly through the adjusting arm;

a telescopic knuckle arm assembly;

the turbine speed reducing mechanism is provided with a ruler large gear and a ruler small gear which are meshed with each other, and a turbine is arranged on the ruler small gear;

the worm is arranged on a motor shaft on one side of the double-shaft motor;

the outer end of the telescopic knuckle arm assembly is hinged to the adjusting arm, the inner end of the telescopic knuckle arm assembly is rigidly connected with the ruler gear wheel, and the worm is meshed with the turbine.

3. The automatic vehicle height adjusting device according to claim 2, further comprising a vehicle height data monitoring and controlling mechanism having a sensor connecting rod, a vehicle height sensor with a sensor rocker arm, a mounting bracket, a dual-axis motor controller and a control panel;

one end of the sensor connecting rod is hinged with the lower swing arm assembly, the other end of the sensor connecting rod is hinged with the outer end of the sensor swing arm of the vehicle height sensor, and the vehicle height sensor is arranged on the vehicle frame assembly through the mounting bracket; when the height of the vehicle body changes, the sensor rocker arm is driven to rotate by the sensor connecting rod in the process of the up-and-down swing of the lower swing arm assembly, the vehicle height sensor generates a vehicle height signal, the vehicle height signal is sent to the control panel through the wire harness, and the vehicle height information is displayed on a screen of the control panel; meanwhile, a control signal is sent to the double-shaft motor controller through operating the control panel, and the double-shaft motor controller controls the double-shaft motor to rotate clockwise or anticlockwise.

4. The automatic vehicle height adjusting device according to claim 2 or 3, wherein the telescopic articulated arm assembly is provided with a telescopic articulated arm outer cylinder and a fork arm; the outer end of the telescopic knuckle arm outer cylinder is a connecting plate, the connecting plate is fixedly connected with the ruler large gear through a bolt, the inner end of the telescopic knuckle arm outer cylinder is provided with a mounting hole, a rolling spline pair is arranged in the mounting hole and consists of a spline sleeve, a spline shaft and balls, the inner end of the spline sleeve is fixed in the mounting hole through an elastic snap spring, the outer end of the spline shaft is connected with the end part of the fork arm, a return spring is sleeved on the spline shaft between the telescopic knuckle arm outer cylinder and the fork arm, and a dust cover is arranged between the telescopic knuckle arm outer cylinder outside the return spring and the fork arm; the fork arm is hinged with the adjusting arm through a rotating pin shaft.

5. The automatic vehicle height adjusting device of claim 4, wherein the rolling spline pair is a six-channel ball spline pair.

6. The automatic vehicle height adjusting device according to claim 5, wherein a noise reduction shield is provided on the yoke.

7. The automatic vehicle height adjusting device according to claim 6, wherein a noise reduction washer is disposed between the yoke and the rotating pin.

Technical Field

The invention relates to the technical field of automobiles, in particular to an automatic automobile height adjusting device.

Background

The torsion bar spring is usually used in a vehicle type of a double-wishbone independent suspension or a single-wishbone independent suspension, one end of the torsion bar spring is usually fixedly connected with an upper control arm or a lower control arm through an internal spline and an external spline, the center line of the torsion bar spring is coincident with the rotation center of the control arm fixedly connected with the torsion bar spring, the other end of the torsion bar spring is matched with an adjusting arm through the internal spline and the external spline, wheels of an automobile are excited by uneven road surfaces to jump up and down in the driving process, and the control arm swings along with the control arm, so that the torsion bar is subjected to passive reciprocating torsional deformation to absorb the impact energy of the road surfaces. Because the torsion bar spring can reserve more energy than the spiral spring, and simple structure, it is little to occupy horizontal space, arranges in a flexible way, can satisfy the adjustment of different car heights, so obtain extensive application in motorcycle types such as pick up motorcycle type and the cross-country SUV of degree of depth.

The currently common vehicle height adjusting mechanisms are the following two types:

the first mechanism mainly comprises a torsion bar spring, a worm, a bolt and a torsion arm. The front end of a torsion bar spring is connected with the upper control arm, the rear end of the torsion bar spring is connected with the torsion arm and is also connected with the worm gear structure, the torsion arm is fixedly connected with the frame through a bolt, and when the worm is rotated, the adjusting arm swings in a corresponding direction, so that the upper swing arm swings up and down, and the purpose of independently adjusting the height of a single-side vehicle is achieved; the bolt locks and fixes the adjusting arm and the frame, so that the height of the vehicle is stabilized within an adjusting value. When the vehicle height adjusting mechanism is used for adjusting the vehicle height, firstly, bolts need to be removed, the locking function of the mechanism is released, the worm is manually rotated, the rotating direction of the worm is controlled, the torsion arm is driven to swing, the torsion arm drives the control arm on the suspension to swing up and down through the torsion bar spring, and the vehicle heights on two sides are respectively adjusted manually. The mechanism has the advantages that the efficiency of adjusting the vehicle height is low, the working strength is high, the operation difficulty of adjusting the vehicle height by workers or users is increased, the vehicle heights on two sides are manually adjusted respectively, the vehicle height value cannot be monitored in real time, the vehicle height can be adjusted in place only by repeatedly adjusting and measuring the vehicle height value, and a non-professional person can hardly adjust the vehicle height value to an ideal vehicle height value quickly.

The second mechanism is mainly characterized in that the front end of a torsion bar spring is fixedly connected with an upper swing arm, the other end of the torsion bar spring is fixedly connected with a torsion arm, a piston rod of a hydraulic cylinder is rotatably connected with a frame, a hydraulic cylinder body is rotatably connected with the torsion arm, a hydraulic oil medium enters the cylinder body through a pipeline to push the piston rod to reciprocate and drive the torsion arm to reciprocate, so that the torsion bar spring is subjected to positive and negative torsion, and the purpose of automatically adjusting the height of a single-side vehicle is achieved. When the vehicle height adjusting mechanism is used for adjusting the vehicle height, the working medium pushes the piston rod to reciprocate by artificially controlling the pressure in the hydraulic pipeline, and the cylinder body pushes the torsion arm to swing clockwise and anticlockwise, so that the torsion bar spring rotates forwards and backwards, and the upper swing arm is driven to swing upwards and downwards, thereby realizing the automatic adjustment of the vehicle height. When the adjusting mechanism is used for adjusting the vehicle height, two sides of the adjusting mechanism are required to be respectively adjusted, so that the efficiency is low; in addition, the adjusting mechanism is not provided with a vehicle height monitoring device, so that a user cannot know the specific parameters of the current vehicle height in real time, and the adjusting mechanism is inconvenient to use.

Disclosure of Invention

The invention aims to provide an automatic vehicle height adjusting device which can realize synchronous adjustment of vehicle heights on two sides and can monitor and display vehicle height data in real time.

In order to achieve the purpose, the invention can adopt the following technical scheme:

the automatic vehicle height adjusting device comprises a vehicle frame assembly

The left vehicle height adjusting unit and the right vehicle height adjusting unit are identical in structure and are symmetrically arranged;

the driving mechanism is used for synchronously driving the left vehicle height adjusting unit and the right vehicle height adjusting unit to adjust the height of the vehicle body;

the driving mechanism is a double-shaft motor, and the double-shaft motor synchronously drives the left vehicle height adjusting unit and the right vehicle height adjusting unit.

The structure of the left side vehicle height adjusting unit/the right side vehicle height adjusting unit comprises

A lower swing arm assembly;

a torsion bar spring;

the front end of the torsion bar spring is connected with the lower swing arm assembly through the fixed arm;

the rear end of the torsion bar spring is hinged with the frame assembly through the adjusting arm;

a telescopic knuckle arm assembly;

the turbine speed reducing mechanism is provided with a ruler large gear and a ruler small gear which are meshed with each other, and a turbine is arranged on the ruler small gear;

the worm is arranged on a motor shaft on one side of the double-shaft motor;

the outer end of the telescopic knuckle arm assembly is hinged to the adjusting arm, the inner end of the telescopic knuckle arm assembly is rigidly connected with the ruler gear wheel, and the worm is meshed with the turbine.

The vehicle height monitoring and controlling mechanism is provided with a sensor connecting rod, a vehicle height sensor with a sensor rocker arm, a mounting bracket, a double-shaft motor controller and a control panel;

one end of the sensor connecting rod is hinged with the lower swing arm assembly, the other end of the sensor connecting rod is hinged with the outer end of the sensor swing arm of the vehicle height sensor, and the vehicle height sensor is arranged on the vehicle frame assembly through the mounting bracket; when the height of the vehicle body changes, the sensor rocker arm is driven to rotate by the sensor connecting rod in the process of the up-and-down swing of the lower swing arm assembly, the vehicle height sensor generates a vehicle height signal, the vehicle height signal is sent to the control panel through a wire harness, and the vehicle height information is displayed on a screen of the control panel; meanwhile, a control signal is sent to the double-shaft motor controller through operating the control panel, and the double-shaft motor controller controls the double-shaft motor to rotate clockwise or anticlockwise.

The telescopic knuckle arm assembly is provided with a telescopic knuckle arm outer cylinder and a fork arm; the outer end of the telescopic knuckle arm outer cylinder is a connecting plate, the connecting plate is fixedly connected with the ruler large gear through a bolt, the inner end of the telescopic knuckle arm outer cylinder is provided with a mounting hole, a rolling spline pair is arranged in the mounting hole and consists of a spline sleeve, a spline shaft and balls, the inner end of the spline sleeve is fixed in the mounting hole through an elastic snap spring, the outer end of the spline shaft is connected with the end part of the fork arm, a return spring is sleeved on the spline shaft between the telescopic knuckle arm outer cylinder and the fork arm, and a dust cover is arranged between the telescopic knuckle arm outer cylinder outside the return spring and the fork arm; the fork arm is hinged with the adjusting arm through a rotating pin shaft.

The rolling spline pair is a six-channel ball spline pair.

And a noise reduction shield is arranged on the fork arm.

And a noise reduction gasket is arranged between the fork arm and the rotating pin shaft.

According to the invention, the double-shaft motor is additionally arranged as a power source for adjusting the vehicle height and is used for controlling the double-shaft motor to positively and negatively drive, and the telescopic arm assembly is driven to vertically swing within a certain angle range under the action of the speed reducing structure of the worm turbine and the straight gear set, so that the torsion bar spring adjusting arms on two sides vertically and synchronously rotate, the vehicle height on two sides is automatically adjusted, the driving requirements of different users under different road conditions are met, and the defect of manual adjustment of the traditional vehicle height is overcome. The worm and turbine set has a large transmission ratio and a compact structure, has a reverse self-locking function, and can meet the locking requirements of different vehicles after adjustment. Meanwhile, the vehicle height sensor can monitor the current vehicle height parameter in real time, and a user can conveniently adjust the vehicle height within a certain range according to the current driving requirement.

The synchronous adjustment of the vehicle heights on the two sides is realized, the operation is convenient, the adjustment efficiency is high, the driving requirements of different drivers under different road conditions can be met, the vehicle height data can be monitored and displayed in real time, information interaction can be conveniently carried out with the drivers, and the drivers can conveniently finish the vehicle height adjustment without professional training.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic block diagram of the electrical circuitry of the vehicle height data monitoring and control mechanism of the present invention.

FIG. 3 is a cross-sectional view of the telescopic articulated arm assembly of the invention.

Fig. 4 is an exploded view of the telescopic articulated arm assembly according to the invention.

Fig. 5 is a partially enlarged view of a portion a in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1-5, the automatic vehicle height adjusting device of the present invention includes a dual-shaft motor 20, a left vehicle height adjusting unit and a right vehicle height adjusting unit, which are disposed on a frame assembly 10, wherein a right-handed worm 21 is disposed on a motor shaft at the left end of the dual-shaft motor 20, a left-handed worm 22 is disposed on a motor shaft at the right end of the dual-shaft motor 20, and the right-handed worm 21 and the left-handed worm 22 are respectively fixedly connected with the motor shaft at the same side through flat keys, so as to ensure that the worm and a motor rotor synchronously rotate to perform power input; the double-shaft motor 20 synchronously drives the left vehicle height adjusting unit and the right vehicle height adjusting unit to adjust the height of the vehicle body;

the left vehicle height adjusting unit and the right vehicle height adjusting unit are identical in structure and are symmetrically arranged; taking the left vehicle height adjusting unit as an example, the structure thereof comprises a lower swing arm assembly 30; a torsion bar spring 40; the front end of the torsion bar spring 40 is connected with the lower swing arm assembly 30 through a fixing arm 41; the rear end of the torsion bar spring 40 is hinged with the frame assembly 10 through an adjusting arm 42, the adjusting arm 42 comprises a torsion bar spring connecting piece connected with the bottom end of the torsion bar spring 40, and a fork arm connecting plate is fixedly connected to the torsion bar spring connecting piece; the yoke connecting plate is hinged with a yoke 501 of the telescopic knuckle arm assembly 50 through a rotating pin shaft 43, and the telescopic knuckle arm assembly 50 is in driving connection with the right-handed worm 21 through a turbine speed reducing mechanism;

specifically, as shown in fig. 3 and 4, the telescopic arm assembly 50 has a yoke 501 and a telescopic arm outer cylinder 502; the outer end of the telescopic knuckle arm outer cylinder 502 is provided with a connecting plate 503, the connecting plate 503 is provided with three bolt connecting holes 504 which are in threaded connection with the turbine speed reducing mechanism, the inner end of the telescopic knuckle arm outer cylinder 502 is provided with a mounting hole 505, a rolling spline pair is arranged in the mounting hole 505 and consists of a spline sleeve 506, a spline shaft 507 and balls 508, the spline shaft 507 is provided with a six-channel groove, and the balls 508 roll on the inner surfaces of the grooves of the telescopic knuckle arm outer cylinder 502 and the spline shaft 507 through the spline sleeve 506; the inner end of the spline housing 506 is fixed in the mounting hole 505 through an elastic clamp spring 509, and the elastic clamp spring 509 axially limits the spline housing 506 to prevent the spline housing 506 from slipping; the outer end of the spline shaft 507 is connected with the end part of the fork arm 501, a return spring 510 is sleeved on the spline shaft 507 between the telescopic knuckle arm outer cylinder 502 and the fork arm 501, and the return spring 510 can ensure the meshing length of the spline shaft 507 and the telescopic knuckle arm outer cylinder 502; a dust cover 511 is arranged between the telescopic knuckle outer cylinder 502 and the fork 501 outside the return spring 510, the dust cover 511 is fixed on the telescopic knuckle outer cylinder 502 and the fork 501 through two hoops 512 at two ends, the insides of the dust cover 511 are filled with lubricating oil, and the spline shaft 507 can be prevented from sliding out of the telescopic knuckle outer cylinder 502;

the yoke connecting plate is hinged with a yoke 501 of the telescopic knuckle arm assembly 50 through a rotating pin shaft 43, a cylindrical bearing is installed at an opening at the upper end of the yoke 201, an outer ring 513 of the bearing is press-riveted on the yoke 201, a noise reduction shield 514 is installed at the opening of the yoke 201, and a noise reduction gasket 515 is arranged between the rotating pin shaft 43 and the yoke 501 to prevent the generation of friction abnormal sound during working; the mechanism adopts six-channel balls for force value transmission, has small resistance and high durability, and is not easy to generate sliding noise; the adjusting arm 42 can always be ensured to be tightly attached to the rotating pin 43 under the action of the torsion moment of the torsion bar spring 40.

Specifically, the turbine reduction mechanism is provided with a ruler big gear 60 and a ruler small gear 61 which are meshed with each other, and a turbine 62 is arranged on the ruler small gear 61; the two ends of the shaft of the ruler gearwheel 60 and the ruler pinion 61 are respectively arranged on the reduction box body through bearings, the turbine 62 is meshed with the right-handed worm 21, the ruler gearwheel 60 is rigidly connected with the connecting plate 503 through three connecting bolts, and the turbine worm structure has a reverse self-locking function besides reducing and twisting, so that the adjusted vehicle height is ensured to be stable within an ideal value.

Specifically, the vehicle height data monitoring and controlling mechanism is provided with a sensor connecting rod 70, a vehicle height sensor 72 with a sensor rocker arm 71, a mounting bracket 73, a double-shaft motor controller and a control panel; one end of the sensor connecting rod 70 is hinged with the lower swing arm assembly 30, the other end of the sensor connecting rod 70 is hinged with the outer end of a sensor swing arm 71 of a vehicle height sensor 72, and the vehicle height sensor 72 is arranged on the vehicle frame assembly 10 through a mounting bracket 73; when the height of the vehicle body changes, the sensor rocker arm 71 is driven to rotate by the sensor connecting rod 70 in the process of the up-and-down swing of the lower swing arm assembly 30, the vehicle height sensor 72 generates a vehicle height signal, the vehicle height signal is sent to the control panel through a wire harness, and the vehicle height information is displayed on a screen of the control panel; meanwhile, a control signal is transmitted to the dual-axis motor controller by operating the control panel, and the dual-axis motor controller controls the dual-axis motor 20 to rotate clockwise or counterclockwise.

The function is realized:

when a user needs to adjust the vehicle height, the user can manually touch and press an adjusting button UP or DOWN on a vehicle height control panel, and the dual-shaft motor 20 is controlled by the dual-shaft motor controller MCU to rotate clockwise and counterclockwise. Because the rotation directions of the right-handed worm 21 and the left-handed worm 22 on both sides of the dual-shaft motor 20 are opposite, the worm wheel 62 can be driven to rotate in opposite directions, under the action of the worm wheel speed reducing mechanisms on both sides, the left and right telescopic knuckle arm assemblies 50 drive the adjusting arm 42 to swing clockwise and anticlockwise within +/-15 degrees, so that the torsion bar springs 40 on both sides are twisted in opposite directions, the torsion bar springs 40 drive the left and right lower swing arm assemblies 30 to swing up and down synchronously through the fixing arm 41, and finally the vehicle height can be freely adjusted within a certain range. The travel control of the vehicle height adjustment is completed through a vehicle height data monitoring and controlling mechanism. In order to ensure that the left and right spline shafts 507 cannot slide out of the telescopic arm outer cylinder 502, the vehicle height adjusting device sets a vehicle height adjusting range in advance, so that the swing of the left and right telescopic arm assemblies 50 is always within the set range value. Due to the existence of the left and right telescopic knuckle arm assembly 50, the left and right adjusting arms 42 can be ensured not to be blocked in the vertical rotating process. When the vehicle height exceeds the adjusting range, the warning lamp on the control panel flickers, and meanwhile, the double-shaft motor 20 stops working, so that the vehicle is ensured to have a safe applicable environment.

The torsion bar spring independent suspension type vehicle height automatic adjusting device can automatically adjust the vehicle height of a torsion bar spring independent suspension vehicle within a certain range, and has the characteristics of simple structure, low cost, high adjusting efficiency, convenience in operation, safety and reliability. The invention can automatically adjust the ground clearance of the vehicle, greatly improve the off-road performance of the vehicle, meet the application requirements of different users on the vehicle, reduce the ground clearance of the vehicle, optimize the running resistance of the vehicle and achieve the purposes of energy conservation and emission reduction.