CN214396316U - Constant-force damping system for automobile - Google Patents
Constant-force damping system for automobile Download PDFInfo
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- CN214396316U CN214396316U CN202120516260.XU CN202120516260U CN214396316U CN 214396316 U CN214396316 U CN 214396316U CN 202120516260 U CN202120516260 U CN 202120516260U CN 214396316 U CN214396316 U CN 214396316U
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Abstract
An automobile constant force damping system comprises a bearing hydraulic cylinder, a gas-liquid converter, a gas accumulator and a return spring; the bearing hydraulic cylinder is vertically arranged, a piston rod faces downwards and is connected with the wheel, and a cylinder barrel of the bearing hydraulic cylinder is connected with the vehicle body; the rod cavity of the bearing hydraulic cylinder is communicated with the atmosphere, the reset spring is positioned in the rod cavity of the bearing hydraulic cylinder and sleeved on the piston rod, one end of the reset spring is connected to the piston, and the other end of the reset spring is connected to the cylinder barrel; hydraulic oil is filled in the rodless cavity of the bearing hydraulic cylinder, the rodless cavity of the bearing hydraulic cylinder is communicated with a hydraulic control port of the gas-liquid converter through a pipeline, and the pneumatic control port of the gas-liquid converter is communicated with a gas accumulator through a pipeline; an oil pressure sensor is arranged on a pipeline between the rodless cavity of the bearing hydraulic cylinder and the hydraulic control port of the gas-liquid converter; the automobile constant force damping system is provided with four sets, and one set is arranged between each of four wheels of the automobile and the automobile body; the rodless cavities of the hydraulic bearing cylinders in the four sets of automobile constant-force damping systems are uniformly connected to the automobile chassis leveling hydraulic control subsystem.
Description
Technical Field
The utility model belongs to the technical field of the automobile shock attenuation, especially, relate to an automobile constant force shock mitigation system.
Background
In the driving process of the automobile, in order to ensure comfort, safety and stability, a suspension system for shock absorption is arranged between an automobile body and wheels of the automobile, particularly, when the automobile body and the wheels encounter rough roads, relative motion in the vertical direction can be generated between the automobile body and the wheels, a shock absorber in the suspension system can be continuously extruded at the moment, oil of the shock absorber flows through damping holes in a reciprocating mode, therefore, internal friction among oil molecules is converted into damping force for shock absorption, vibration energy of the automobile is converted into heat energy to be dissipated, and the shock absorption effect of the automobile is finally achieved.
Although the conventional suspension system can effectively convert hard impact into soft impact by virtue of the shock absorber to realize shock absorption, the vehicle body can be obviously fluctuated, namely, bumpy when the wheel suddenly encounters a depression or a bump in the shock absorption process. The main reasons are as follows: when the wheel suddenly meets the depression, the suspension system suddenly extends to cause the reduction of the supporting force, the vehicle body quickly sinks due to the reduction of the supporting force of the suspension system, when the wheel suddenly meets the bump, the suspension system suddenly compresses to cause the enhancement of the supporting force, the vehicle body quickly throws upwards due to the enhancement of the supporting force of the suspension system, the continuous alternation of the sinking and the throwing of the vehicle body seriously affects the riding comfort, the kinetic energy in the running of the vehicle is also converted into a large amount of damping heat energy of the suspension system to be consumed, the fuel consumption is increased, the loss of the vehicle speed is generated, and the service life of the vehicle is reduced due to the bumping.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a car constant force shock mitigation system, car are when passing through rugged road surface, can make suspension's holding power maintain invariable basically, and the maximum jolt of elimination car improves the life who takes travelling comfort and car, compares with traditional suspension, need not consume the damping heat, consequently can effectively reduce the oil consumption, can not produce the speed of a motor vehicle loss moreover.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an automobile constant force damping system comprises a bearing hydraulic cylinder, a gas-liquid converter, a gas accumulator and a return spring; the bearing hydraulic cylinder is vertically arranged, a piston rod of the bearing hydraulic cylinder is downwards connected with the wheel, and a cylinder barrel of the bearing hydraulic cylinder is connected with the vehicle body; the rod cavity of the bearing hydraulic cylinder is communicated with the atmosphere, the reset spring is positioned in the rod cavity of the bearing hydraulic cylinder and sleeved on the piston rod, one end of the reset spring is connected to the piston, and the other end of the reset spring is connected to the cylinder barrel; the rodless cavity of the bearing hydraulic cylinder is filled with hydraulic oil, the rodless cavity of the bearing hydraulic cylinder is communicated with a hydraulic control port of the gas-liquid converter through a pipeline, and a pneumatic control port of the gas-liquid converter is communicated with the gas accumulator through a pipeline.
And a displacement sensor is connected between the piston and the cylinder barrel of the bearing hydraulic cylinder.
And an oil pressure sensor is arranged on a pipeline between the rodless cavity of the bearing hydraulic cylinder and the hydraulic control port of the gas-liquid converter.
The four automobile constant force damping systems are provided with four sets, one set of automobile constant force damping system is respectively arranged between four wheels of an automobile and an automobile body, and rodless cavities of hydraulic bearing cylinders in the four sets of automobile constant force damping systems are uniformly connected into an automobile body chassis leveling hydraulic control subsystem.
The hydraulic control subsystem for leveling the chassis of the vehicle body comprises an oil tank, an oil absorption filter, a hydraulic pump, a one-way valve, an overflow valve, a normally closed electromagnetic valve and a five-way servo valve; an oil inlet of the oil absorption filter is communicated with an oil tank, an oil outlet of the oil absorption filter is communicated with an oil inlet of a hydraulic pump, an oil outlet of the hydraulic pump is communicated with an oil inlet of a one-way valve, an oil outlet of the one-way valve is output in three paths, the first path is communicated with an oil inlet of a five-path five-way servo valve, the second path is communicated with an oil inlet of an overflow valve, and the third path is communicated with an oil inlet of a normally closed solenoid valve; the oil outlet of the overflow valve is communicated with the oil tank; an oil outlet of the normally closed electromagnetic valve is communicated with the oil tank, and a throttle valve is arranged on a pipeline between an oil inlet of the normally closed electromagnetic valve and an oil outlet of the one-way valve; the hydraulic pump adopts a motor as a power source; four oil outlets of the five-way and five-way servo valve are respectively communicated with rodless cavities of bearing hydraulic cylinders in four sets of automobile constant-force damping systems through pipelines.
The utility model has the advantages that:
the utility model discloses a car constant force shock mitigation system, car are when passing through rugged road surface, can make suspension's holding power maintain invariable basically, and the jolt of at utmost elimination car improves the life who takes travelling comfort and car, compares with traditional suspension, need not consume the damping heat, consequently can effectively reduce the oil consumption, can not produce the speed of a motor vehicle loss moreover.
Drawings
Fig. 1 is a schematic structural view of an automobile constant force damping system of the present invention;
in the figure, 1-bearing hydraulic cylinder, 2-gas-liquid converter, 3-gas accumulator, 4-reset spring, 5-oil tank, 6-oil suction filter, 7-hydraulic pump, 8-one-way valve, 9-overflow valve, 10-normally closed electromagnetic valve, 11-five-way servo valve, 12-throttle valve, 13-motor.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an automobile constant force damping system comprises a bearing hydraulic cylinder 1, a gas-liquid converter 2, a gas accumulator 3 and a return spring 4; the bearing hydraulic cylinder 1 is vertically arranged, a piston rod of the bearing hydraulic cylinder 1 faces downwards to be connected with a wheel, and a cylinder barrel of the bearing hydraulic cylinder 1 is connected with a vehicle body; the rod cavity of the bearing hydraulic cylinder 1 is communicated with the atmosphere, the reset spring 4 is positioned in the rod cavity of the bearing hydraulic cylinder 1 and sleeved on the piston rod, one end of the reset spring 4 is connected to the piston, and the other end of the reset spring 4 is connected to the cylinder barrel; hydraulic oil is filled in the rodless cavity of the bearing hydraulic cylinder 1, the rodless cavity of the bearing hydraulic cylinder 1 is communicated with the hydraulic control port of the gas-liquid converter 2 through a pipeline, and the pneumatic control port of the gas-liquid converter 2 is communicated with the gas accumulator 3 through a pipeline.
And a displacement sensor is connected between the piston and the cylinder barrel of the bearing hydraulic cylinder 1.
And an oil pressure sensor is arranged on a pipeline between the rodless cavity of the bearing hydraulic cylinder 1 and the hydraulic control port of the gas-liquid converter 2.
The automobile constant-force damping system is provided with four sets, the four wheels and the automobile body of the automobile are respectively provided with one set of automobile constant-force damping system, and the rodless cavities of the bearing hydraulic cylinders 1 in the four sets of automobile constant-force damping systems are uniformly connected into the automobile body chassis leveling hydraulic control subsystem.
The hydraulic control subsystem for leveling the chassis of the vehicle body comprises an oil tank 5, an oil absorption filter 6, a hydraulic pump 7, a one-way valve 8, an overflow valve 9, a normally closed electromagnetic valve 10 and a five-way servo valve 11; an oil inlet of the oil absorption filter 6 is communicated with the oil tank 5, an oil outlet of the oil absorption filter 6 is communicated with an oil inlet of the hydraulic pump 7, an oil outlet of the hydraulic pump 7 is communicated with an oil inlet of the one-way valve 8, an oil outlet of the one-way valve 8 is output in three paths, the first path is communicated with an oil inlet of the five-path five-way servo valve 11, the second path is communicated with an oil inlet of the overflow valve 9, and the third path is communicated with an oil inlet of the normally closed solenoid valve 10; an oil outlet of the overflow valve 9 is communicated with the oil tank 5; an oil outlet of the normally closed electromagnetic valve 10 is communicated with the oil tank 8, and a throttle valve 12 is arranged on a pipeline between an oil inlet of the normally closed electromagnetic valve 10 and an oil outlet of the one-way valve 8; the hydraulic pump 7 adopts a motor 13 as a power source; four oil outlets of the five-way and five-way servo valve 11 are respectively communicated with rodless cavities of the bearing hydraulic cylinders 1 in four sets of automobile constant-force damping systems through pipelines.
When the number of drivers and passengers in the automobile and the riding position change, the gravity center of the automobile can be changed to a certain degree, and further the chassis of the automobile is inclined to a certain degree, at the moment, the intelligent vehicle-mounted system can automatically judge the inclination degree of the chassis of the automobile, then the hydraulic pump 7 is started or the normally closed electromagnetic valve 10 is opened, hydraulic oil can be filled into the rodless cavity of the bearing hydraulic cylinder 1 through the hydraulic pump 7, the piston rod extends downwards to increase the height of the chassis at the corresponding position, in addition, the hydraulic oil in the rodless cavity of the bearing hydraulic cylinder 1 can be properly returned into the oil tank 5 through the opening of the normally closed electromagnetic valve 10, the piston rod retracts upwards to decrease the height of the chassis at the corresponding position until the chassis of the automobile is re-leveled, and the five-way servo valve 11 is adjusted back to the middle gear after the chassis is leveled.
When the automobile runs on a rugged road, in order to reduce the scraping risk of the automobile chassis and the ground, the automobile chassis can be integrally lifted so as to increase the distance between the automobile chassis and the ground, and hydraulic oil is filled into the rodless cavity of the bearing hydraulic cylinder 1 through the hydraulic pump 7, so that the piston rod extends downwards to increase the height of the automobile chassis.
In addition, when the automobile runs on a rugged road, the five-way servo valve 11 needs to be kept at a middle gear, when the wheel encounters a pit, the wheel can move downwards quickly, so that the piston rod of the bearing hydraulic cylinder 1 is driven to move downwards, hydraulic oil in a rodless cavity of the bearing hydraulic cylinder 1 can generate a pressure relief trend, at the moment, the gas accumulator 3 can release pressure and is quickly supplemented into the rodless cavity of the bearing hydraulic cylinder 1 through the gas-liquid converter 2, therefore, the pressure of the hydraulic oil in the rodless cavity of the bearing hydraulic cylinder 1 is kept relatively constant, jolt of the automobile is eliminated to the maximum extent, riding comfort is improved, and the service life of the automobile is prolonged. In a similar way, when the wheel met the suddenly and met the uplift, the wheel can be fast upwards moved, and then the piston rod that drives and bear pneumatic cylinder 1 upwards moves, the hydraulic oil that bears 1 no pole chamber of pneumatic cylinder can produce the pressure boost trend, and the pressure that bears 1 no pole intracavity of pneumatic cylinder and increase this moment can be absorbed by gas accumulator 3 through gas-liquid converter 2 fast, thereby guaranteed that the pressure that bears the hydraulic oil in 1 no pole chamber of pneumatic cylinder maintains relatively invariable, jolting of at utmost elimination car, improve the life who takes travelling comfort and car.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an automobile constant force shock mitigation system which characterized in that: the device comprises a bearing hydraulic cylinder, a gas-liquid converter, a gas accumulator and a return spring; the bearing hydraulic cylinder is vertically arranged, a piston rod of the bearing hydraulic cylinder is downwards connected with the wheel, and a cylinder barrel of the bearing hydraulic cylinder is connected with the vehicle body; the rod cavity of the bearing hydraulic cylinder is communicated with the atmosphere, the reset spring is positioned in the rod cavity of the bearing hydraulic cylinder and sleeved on the piston rod, one end of the reset spring is connected to the piston, and the other end of the reset spring is connected to the cylinder barrel; the rodless cavity of the bearing hydraulic cylinder is filled with hydraulic oil, the rodless cavity of the bearing hydraulic cylinder is communicated with a hydraulic control port of the gas-liquid converter through a pipeline, and a pneumatic control port of the gas-liquid converter is communicated with the gas accumulator through a pipeline.
2. The constant force shock absorbing system for automobiles according to claim 1, wherein: and a displacement sensor is connected between the piston and the cylinder barrel of the bearing hydraulic cylinder.
3. The constant force shock absorbing system for automobiles according to claim 1, wherein: and an oil pressure sensor is arranged on a pipeline between the rodless cavity of the bearing hydraulic cylinder and the hydraulic control port of the gas-liquid converter.
4. The constant force shock absorbing system for automobiles according to claim 1, wherein: the four constant-force damping systems of the automobile are provided with four sets of constant-force damping systems, the constant-force damping systems of the automobile are respectively arranged between four wheels of the automobile and an automobile body, and rodless cavities of hydraulic bearing cylinders in the four constant-force damping systems of the automobile are uniformly connected into a set of hydraulic control subsystem for leveling an automobile chassis.
5. The constant force shock absorbing system for automobiles according to claim 4, wherein: the hydraulic control subsystem for leveling the chassis of the vehicle body comprises an oil tank, an oil absorption filter, a hydraulic pump, a one-way valve, an overflow valve, a normally closed electromagnetic valve and a five-way servo valve; an oil inlet of the oil absorption filter is communicated with an oil tank, an oil outlet of the oil absorption filter is communicated with an oil inlet of a hydraulic pump, an oil outlet of the hydraulic pump is communicated with an oil inlet of a one-way valve, an oil outlet of the one-way valve is output in three paths, the first path is communicated with an oil inlet of a five-path five-way servo valve, the second path is communicated with an oil inlet of an overflow valve, and the third path is communicated with an oil inlet of a normally closed solenoid valve; the oil outlet of the overflow valve is communicated with the oil tank; an oil outlet of the normally closed electromagnetic valve is communicated with the oil tank, and a throttle valve is arranged on a pipeline between an oil inlet of the normally closed electromagnetic valve and an oil outlet of the one-way valve; the hydraulic pump adopts a motor as a power source; four oil outlets of the five-way and five-way servo valve are respectively communicated with rodless cavities of bearing hydraulic cylinders in four sets of automobile constant-force damping systems through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120516260.XU CN214396316U (en) | 2021-03-11 | 2021-03-11 | Constant-force damping system for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120516260.XU CN214396316U (en) | 2021-03-11 | 2021-03-11 | Constant-force damping system for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214396316U true CN214396316U (en) | 2021-10-15 |
Family
ID=78028930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120516260.XU Active CN214396316U (en) | 2021-03-11 | 2021-03-11 | Constant-force damping system for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214396316U (en) |
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2021
- 2021-03-11 CN CN202120516260.XU patent/CN214396316U/en active Active
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