CN216331301U

CN216331301U - Hydraulic regulation and control linkage system for suspension system

Info

Publication number: CN216331301U
Application number: CN202123244913.2U
Authority: CN
Inventors: 刘焕营
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-19
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to a hydraulic regulation linkage system of a suspension system, which comprises an upper cross arm, a lower cross arm and a hydraulic regulation linkage system, wherein the two ends of the upper cross arm are respectively hinged to a frame upright post and the upper end of an axle; the telescopic device drives the quadrilateral suspension to deform through telescoping, so that the postures of the wheels and the frame are adjusted. The utility model makes the ground-grasping gesture of two wheels form a splay shape by the length of the lower cross arm being larger than the length of the upper cross arm, when the ground-grasping gesture of two wheels approaches to the H shape from the splay shape, the distance of the ground-grasping point of two tires is kept unchanged, the abrasion caused by the rigid sideslip of the tires due to the change of the wheel track is prevented, and simultaneously, the suspension linkage of two sides is realized by the arrangement of the hydraulic push rod, the first hydraulic pipe, the second hydraulic pipe and the buffer tank, thereby preventing the vehicle body from tilting.

Description

Hydraulic regulation and control linkage system for suspension system

Technical Field

The utility model relates to the field of transportation vehicle structures, in particular to a suspension system of a transportation vehicle, and particularly relates to a hydraulic regulation linkage system of a vehicle suspension system.

Background

The suspension systems of the existing mechanical transport vehicles are basically divided into two categories, one is a non-independent suspension system, and the other is an independent suspension system. The non-independent suspension wheels are arranged at two ends of an integral axle, and when one side of the wheel jumps, the other side of the wheel correspondingly jumps, so that the whole vehicle body vibrates or inclines; the independent suspension axle is divided into two sections, each wheel is independently installed below the frame through a spiral spring, when the wheel on one side jumps, the wheel on the other side is not affected, and the wheels on the two sides can independently move. Although independent suspensions improve the stability and comfort of the vehicle compared to non-independent suspensions, the effect is not optimal, especially in the aspect of the stability of the balance of the vehicle body, improvement is still necessary, and the traditional improvement mode has the problem that the wheel track changes along with the change of the vehicle running, so that the rigid sideslip of the wheel causes the abrasion of the tire to be increased.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model combines the characteristics of a non-independent suspension system and an independent suspension system, and leads wheels at two sides to form linkage on the basis of independent suspension, thereby constructing the non-independent suspension system, greatly reducing the vehicle body side inclination caused by road conditions under the working condition of straight running of the vehicle and the vehicle side overturning caused by the reverse moment of centrifugal force generated when the vehicle turns, simultaneously reducing the tire abrasion, and improving the riding comfort and the stability and the safety of goods transportation.

The utility model is realized by the following technical scheme, the hydraulic regulation linkage system of the suspension system comprises an upper cross arm, two ends of which are respectively hinged on a frame upright post and the upper end of an axle, and a lower cross arm, two ends of which are respectively hinged on the frame upright post and the lower end of the axle, wherein the length of the lower cross arm is greater than that of the upper cross arm, and the upper cross arm, the frame upright post, the lower cross arm and the axle sequentially form a quadrilateral suspension; the telescopic device drives the quadrilateral suspension to deform through telescoping, so that the postures of the wheels and the frame are adjusted.

When the utility model is used, the length of the lower cross arm is larger than that of the upper cross arm, so that the ground gripping postures of the two wheels are splayed, when the ground gripping postures of the two wheels approach to an H shape from the splayed shape, the ground gripping point distance of the two wheels is kept unchanged, the abrasion caused by the rigid sideslip of the tires due to the change of the wheel track is prevented, and meanwhile, the telescopic device is arranged to telescopically drive the quadrilateral suspension to deform, so that the postures of the wheels and the frame are adjusted, thereby preventing the vehicle body from rolling due to the road condition under the straight running working condition of the vehicle and preventing the vehicle from rolling over due to the reverse moment of centrifugal force generated when the vehicle turns, and improving the riding comfort and the stability and the safety of goods transportation.

Preferably, the telescopic device is diagonally arranged between the frame upright post and the axle, the upper end of the telescopic device is hinged with the upper end of the frame upright post, and the lower end of the telescopic device is hinged with the lower end of the axle.

Preferably, the telescopic device is a hydraulic push rod.

This preferred scheme is through the setting of hydraulic pressure push rod, convenient operation and use.

Preferably, the hydraulic push rod is communicated with first hydraulic pipes, the two first hydraulic pipes are communicated through second hydraulic pipes, and the second hydraulic pipes are communicated with the buffer tank through fourth hydraulic pipes.

This preferred scheme is in the use, and when the left side road surface is higher than the right side road surface, the left side wheel risees for the right side wheel, and on the left side, under the action of gravity of automobile body and load, the quadrangle hangs and takes place deformation, and the wheel camber, frame left side height reduces. The quadrilateral suspension on the left side deforms, the hydraulic push rod on the left side is extruded, a hydraulic medium is pushed out and injected into the buffer tank, and the buffer tank plays a role in damping;

hydraulic medium from the left hydraulic push rod is injected into the right hydraulic push rod through the first hydraulic pipe, the right hydraulic push rod extends, the right quadrilateral suspension deforms, the wheel posture is driven to incline inwards, and the right side of the frame rises;

the left wheel is outwards inclined, the right wheel is inwards inclined, the left side of the frame is lowered and the right side of the frame is raised, so that the frame is kept parallel to the ground level line, the side inclination of the vehicle body is reduced, and the riding comfort and the stability and the safety of goods transportation are improved.

Preferably, the second hydraulic pipe is also communicated with the first hydraulic cylinder through a fifth hydraulic pipe.

When the optimal scheme is used, the first hydraulic cylinder works to reduce pipeline pressure, hydraulic media flow back to the first hydraulic cylinder from the hydraulic push rods on the two sides through the second hydraulic pipe and the first hydraulic pipe, the push rods on the two sides retract to force the quadrilateral suspension to deform, and the postures of the two wheels are regulated and controlled to trend to be H-shaped from a splayed shape. The vehicle has the advantages that the vehicle body posture can be conveniently adjusted, and the running stability of the vehicle is further improved.

Preferably, the second hydraulic pipe is provided with two electromagnetic valves, the fifth hydraulic pipe and the fourth hydraulic pipe are located between the two electromagnetic valves, the two first hydraulic pipes are communicated through a third hydraulic pipe which is connected with the second hydraulic pipe in parallel, and the third hydraulic pipe is communicated with a second hydraulic cylinder.

When the optimal scheme is used, the vehicle turns right to generate centrifugal force, the centrifugal force is sensed by a centrifugal force sensor, when the centrifugal force is larger than a set threshold value, a sensor signal is uploaded to an upper computer, the upper computer sends out an instruction, two normally open stop electromagnetic valves are stopped, and a second hydraulic cylinder is instructed to work at the same time, so that a hydraulic medium is pushed to be injected into a hydraulic push rod on the left side, the hydraulic push rod on the left side extends, and the vehicle frame rises; on the right side, the hydraulic medium of the hydraulic push rod flows back to the right cavity of the second hydraulic cylinder, the hydraulic push rod retracts, the right side of the frame is lowered, the left side wheels tilt inwards, the right side wheels tilt outwards, the left side of the frame is high and the right side of the frame is low, so that the reverse moment of centrifugal force is partially or completely offset, the side turning of the vehicle caused by the centrifugal force is prevented, and the riding comfort and the stability and the safety of goods transportation are improved.

The utility model has the beneficial effects that: the length of the lower cross arm is larger than that of the upper cross arm, so that the ground grabbing postures of the two wheels are splayed, when the ground grabbing postures of the two wheels approach to the H shape from the splay, the ground grabbing distance of the two tires is kept unchanged, abrasion caused by rigid sideslip of the tires due to wheel track change is prevented, and meanwhile, the telescopic device is arranged to telescopically drive the quadrilateral suspension to deform, so that the postures of the wheels and the frame are adjusted, the vehicle body heeling caused by road conditions under the condition of straight-line running of the vehicle is prevented, the vehicle rollover caused by the anti-falling moment of centrifugal force generated during vehicle turning is prevented, and the riding comfort and the stability and the safety of goods transportation are improved.

Drawings

FIG. 1 is a schematic structural view of the present invention in example 1;

FIG. 2 is a schematic view showing a state of use of the structure of the present invention in embodiment 1;

FIG. 3 is a schematic structural view of the present invention in example 2;

FIG. 4 is a schematic structural view of the present invention in example 3;

fig. 5 is a schematic diagram of the structure of the present invention in a right-turning state in embodiment 3.

Shown in the figure:

1. the hydraulic control device comprises a wheel, 2, a stand column, 3, an axle, 4, an upper cross arm, 5, a lower cross arm, 6, a cross beam, 7, a hydraulic push rod, 8, a second hydraulic pipe, 9, a buffer tank, 10, a first hydraulic cylinder, 11, an electromagnetic valve, 12 and a second hydraulic cylinder.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

Example 1:

referring to fig. 1-2, the present embodiment includes a frame, a hydraulic push rod 7, and two wheels 1 symmetrically disposed about the frame, the frame includes a cross member 6, and two upright posts 2 fixedly connected to the top surface of the cross member 6.

The upright post 2 is hinged with lower cross arms 5 positioned on the outer side of the frame, the two lower cross arms are symmetrically arranged relative to the frame, and one end of each lower cross arm 5 far away from the upright post 2 is hinged with an axle 3 connected with the wheel 1.

The upright post 2 is also hinged with an upper cross arm 4 positioned above a lower cross arm 5, one end of the upper cross arm 4 far away from the frame is also hinged on the axle 3, the length of the lower cross arm is larger than that of the upper cross arm, and the upper cross arm 4, the axle 3, the lower cross arm 5 and the side surface of the frame form a quadrilateral suspension. The side surface of the frame is the upright post 2.

Go up xarm 4 and articulate through first articulated shaft and stand 2, lower xarm 5 is articulated through second articulated shaft and axletree 3, and hydraulic rod 7 is located the frame outside, and hydraulic rod 7 and last xarm 4 are all articulated through first articulated shaft and stand 2, and hydraulic rod 7 and lower xarm 5 are all articulated through second articulated shaft and axletree 3. Because the length of the lower cross arm 5 is larger than that of the upper cross arm 4, the two wheels 1 are arranged in a splayed shape.

Of course, the upper end of the hydraulic push rod 7 may be hinged to the upper cross arm 4 at a different hinge point with respect to the upright 2, and the lower end of the hydraulic push rod 7 may be hinged to the lower cross arm 5 at a different hinge point with respect to the axle 3.

The hydraulic push rod 7 is communicated with first hydraulic pipes, the two first hydraulic pipes are communicated with each other through a second hydraulic pipe 8, the second hydraulic pipes are communicated with the opening of the buffer tank through fourth hydraulic pipes, and the buffer tank plays a role in damping.

When the vehicle is used, the two wheels 1 are in splayed ground gripping in a no-load free state, and after a payload is loaded, the quadrilateral suspension deforms, so that the inward inclination of the two wheels 1 is not obvious any more and approaches to an H shape.

When the vehicle runs, the left road surface is higher than the right road surface, the left wheels are lifted relative to the right wheels, and on the left side, under the gravity action of the vehicle body and the load, the left quadrilateral suspension is deformed, and the height of the left side of the frame cross beam 6 is reduced. The left quadrilateral suspension deforms, the left hydraulic push rod 7 is extruded, hydraulic medium is pushed out and injected into the buffer tank 9, and the buffer tank plays a role in damping.

The hydraulic medium from the left hydraulic push rod 7 is injected into the right hydraulic push rod 7 through the second hydraulic pipe, the right hydraulic push rod extends, the right suspension quadrangle deforms, the wheels 1 are driven to tilt inwards, and the right side of the frame cross beam 6 rises.

The left part of the frame is lowered and the right part of the frame is raised, so that the frame is kept parallel to the ground level line, the side inclination of the vehicle body is reduced, and the riding comfort and the stability and the safety of goods transportation are improved. The self-balancing device has the advantages of simple structure, convenience in installation and strong self-balancing capability.

Example 2:

referring to fig. 3, the embodiment is different from embodiment 1 in that the second hydraulic pipe is further communicated with the first hydraulic cylinder through a fifth hydraulic pipe, a liquid inlet and a liquid outlet of the first hydraulic cylinder are the same through-hole, and the through-hole is communicated with the fifth hydraulic pipe.

When the hydraulic wheel suspension device is used, when the first hydraulic cylinder 10 is pressurized, hydraulic media are respectively injected into the two hydraulic push rods 7, the push rods are pushed out, the quadrilateral suspension is deformed, and the posture of the wheel 1 tends to be splayed; when the first hydraulic cylinder 10 is depressurized, hydraulic medium flows back to the hydraulic cylinder through the two hydraulic push rods 7, the push rods retract, the quadrilateral suspension deforms, and the posture of the wheel tends to be H-shaped. When the posture of the wheel is splayed, the distance between the frame cross beam 6 and the ground is small, and when the posture of the wheel is H-shaped, the distance between the frame cross beam 6 and the ground is large, so that the distance between the frame 6 and the ground can be adjusted by adjusting the pressure of the first hydraulic cylinder 10.

The beneficial effects are that: the regulation and control of the wheel 1 and the posture of the vehicle body are greatly facilitated, and the embodiment 2 is superior to the embodiment 1 because the pressure of the embodiment 1 cannot be regulated at any time and needs to be operated on the ground, which is inconvenient.

Example 3:

referring to fig. 4-5, this embodiment is different from embodiment 2 in that two solenoid valves are provided on the second hydraulic pipe, the fifth hydraulic pipe and the fourth hydraulic pipe are located between the two solenoid valves, the two first hydraulic pipes are further communicated through a third hydraulic pipe arranged in parallel with the second hydraulic pipe, the third hydraulic pipe is communicated with a second hydraulic cylinder, the second hydraulic cylinder is arranged in series on the third hydraulic pipe, and a liquid inlet and a liquid outlet of the second hydraulic cylinder are both communicated with the third hydraulic pipe.

When the vehicle-mounted centrifugal force sensor is used, a vehicle turns right, for example, the vehicle-mounted centrifugal force sensor senses centrifugal force, when the centrifugal force is larger than a set threshold value, a signal is uploaded to an upper computer, the upper computer sends out an instruction, the two electromagnetic valves 11 are stopped, the second hydraulic cylinder 12 is instructed to be started at the same time, the piston moves leftwards, hydraulic medium is injected into the left hydraulic push rod 7, the left hydraulic push rod extends, and the left side of the frame cross beam 6 rises; on the right side, the hydraulic medium of the hydraulic push rod 7 flows back to the right chamber of the second hydraulic cylinder 12, the hydraulic push rod retracts, the right side of the frame cross beam 6 is lowered, the frame cross beam 6 is forced to incline, the counter-falling moment of centrifugal force is partially or completely counteracted, the vehicle rollover caused by the centrifugal force is prevented, and the riding comfort and the stability and the safety of goods transportation are improved.

In particular, fig. 1-5 are only schematic diagrams, wherein the hydraulic pipe is a hose, and the hydraulic pipe, the solenoid valve, the buffer tank, the first hydraulic cylinder and the second hydraulic cylinder can be placed according to the space practical situation of the frame.

Claims

1. The utility model provides a suspension is hydraulic pressure regulation and control linked system which characterized in that: the four-wheel suspension mechanism comprises an upper cross arm (4) and a lower cross arm (5), wherein two ends of the upper cross arm (4) are respectively hinged to a frame upright (2) and an axle (3), the lower cross arm (5) is positioned below the upper cross arm (4), two ends of the lower cross arm are respectively hinged to the frame upright (2) and the axle (3), the length of the lower cross arm (5) is greater than that of the upper cross arm (4), and the upper cross arm, the frame upright, the lower cross arm and the axle sequentially form a quadrilateral suspension; the telescopic device drives the quadrilateral suspension to deform through telescoping, so that the posture of the frame (6) is adjusted.

2. The suspension hydraulic regulatory linkage system of claim 1, wherein: the telescopic device is obliquely arranged between the frame upright post (2) and the axle (3) in a diagonal manner, the upper end of the telescopic device is hinged with the upper end of the frame upright post (2), and the lower end of the telescopic device is hinged with the lower end of the axle (3).

3. The suspension hydraulic regulatory linkage system of claim 2, wherein: the telescopic device is a hydraulic push rod.

4. The suspension hydraulic regulatory linkage system of claim 3, wherein: the hydraulic push rod (7) is communicated with first hydraulic pipes, the two first hydraulic pipes are communicated with each other through second hydraulic pipes (8), and the second hydraulic pipes (8) are communicated with the buffer tank (9) through fourth hydraulic pipes.

5. The suspension hydraulic regulatory linkage system of claim 4, wherein: the second hydraulic pipe (8) is also communicated with the first hydraulic cylinder (10) through a fifth hydraulic pipe.

6. The suspension hydraulic regulatory linkage system of claim 5, wherein: be equipped with two solenoid valves (11) on second hydraulic pressure pipe (8), fifth hydraulic pressure pipe and fourth hydraulic pressure pipe are located between two solenoid valves (11), and two first hydraulic pressure pipes are still through the third hydraulic pressure pipe intercommunication with the parallelly connected setting of second hydraulic pressure pipe (8), and the intercommunication has second pneumatic cylinder (12) on the third hydraulic pressure pipe.