KR100811098B1 - Shock Absorber Apparatus For Reducing Weight and Vibration Of Vehicle - Google Patents

Abstract

The present invention relates to a shock absorber device for damping the weight and vibration of a vehicle. The weight of the vehicle transmitted from the body mount of the shock absorber is applied to the frame and the power shaft of the vehicle through a plurality of pressure outlets branched from the control port. It prevents the vehicle's accessories from being damaged by speed bumps or various structures on the side of the road by using the gravity of the vehicle to prevent the vehicle from suddenly changing by ejecting and providing no additional control means. By reducing torque generation, energy efficiency can be increased, and by using the gravity load of the vehicle as part of the reaction force, a sudden height change can be performed using the gravity of the vehicle body rather than the hydraulic system.

Shock absorber, leaf spring, frame, hydraulic outlet, hydraulic passage

Description

Shock Absorber Apparatus For Reducing Weight and Vibration Of Vehicle}

1 is an exemplary view showing a conventional shock absorber.

2 is a cross-sectional view showing a shock absorber according to a preferred embodiment of the present invention.

3 is a state diagram showing a state in which a shock absorber according to a preferred embodiment of the present invention is installed in a vehicle to support a power shaft and a frame.

Figure 4a is an exploded perspective view showing a state in which the shock absorber according to the preferred embodiment of the present invention is fastened to the frame.

Figure 4b is a cross-sectional view showing a state in which the shock absorber according to the preferred embodiment of the present invention is fastened to the frame.

Figure 5a is a perspective view for explaining the principle of attenuating the weight using the reaction force of the hydraulic when the battery is loaded in the shock absorber device according to a preferred embodiment of the present invention.

Figure 5b is an enlarged cross-sectional view for explaining the principle of attenuating the weight using the reaction force of the hydraulic when the battery is loaded in the shock absorber device according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: dust shield 2: body mount

3: piston rod 4: adjuster

5: fluid 6: piston

7, 7 ': cylinder 8: stepped

10: spring 12: adjustment part

13: f2 hydraulic spout 14: f1 hydraulic spout

15: f3 hydraulic outlet 16: bumper rubber

17: U-Bolt 18: Satellite

19: hydraulic passage 2 pedestal 20: hydraulic passage 2

21: Power shaft 22: Hydraulic passage 1

23: hydraulic passage 1 support 24: leaf spring

25: hydraulic passage 3 26: hydraulic passage 3 pedestal

27: Frame 28: Shock absorber fixture

29: bolt 30: play stop

31: battery 32: hydraulic stand

33: Hydraulic pressure sensor 34: Fastening hole

35: opening 36: stepped portion

100: Shock absorber A: Shock absorber

The present invention relates to a shock absorber of a vehicle. In more detail, the shock absorber provided in the suspension of the vehicle controls the weight of the vehicle transmitted from the body mount through a plurality of pressure ejection outlets branched from the orifice. By discharging hydraulic pressure on the frame and power shaft, the gravity of the body can be used to prevent sudden changes in the vehicle's height and to attenuate the weight and vibration of the vehicle, which can reduce the load transmitted to the power shaft without having to adjust the vehicle. Shock absorber device.

  In general, a shock absorber is an important element of a suspension system of an automobile.

Here, the suspension of the vehicle means a device that connects the axle and the body frame and absorbs the vibration or shock received from the road surface while driving, thereby improving the riding comfort and safety of the vehicle.

The shock absorber, which is part of the suspension, serves to absorb the vertical vibration of the vehicle body.

In addition, the shock absorber plays a role of absorbing the vibration of the spring generated by the road surface, reducing the fatigue of the spring, and improving the riding comfort and road holding.

There are two types of shock absorbers, depending on the shape, a telescope type and a lever type.

Here, the cylindrical shock absorber is classified into oil and compressed gas types according to the operation method, structure and enclosed fluid, and the lever type shock absorber is classified into various types such as rotary wing type or piston type.

Therefore, the shock absorber is installed between the vehicle's axle and the vehicle body to absorb vibrations or shocks generated when the vehicle travels. The shock absorber is filled with gas, oil, and the like to increase damping force.

1 is an exemplary view showing a conventional shock absorber device.

As shown in FIG. 1, the shock absorber A of a conventional vehicle includes a sealer 7 having a seal formed at one side thereof, a connecting ring formed at one side thereof, and an opening 35 formed at the other side thereof. A kind of dust shield 1 and axle housings, an incompressible fluid 5 filled in the cylinder 7, and a longitudinal flow inside the cylinder 7 are possible. And a first piston 6 having an adjustment hole 4 formed to allow the fluid 5 to pass in one direction in an upward direction and a downward direction, respectively, and a separate fluid 5 in the sealing portion. The first piston 6 is formed on one side and the second piston 6 is formed to be filled and flowable in the longitudinal direction inside the cylinder 7, and a body mount 2 is provided on the other side. It consists of a piston rod 3 penetrating the opening 35.

On the other hand, the vehicle has a leaf spring device, such as a shock absorber (A), which is located between the vehicle width and the vehicle body or frame to support the load of the vehicle, thereby cushioning the passage of unevenness on the road while traction and wheel alignment between the tire and the road. Keep it.

The conventional shock absorbers (A) and leaf springs configured as described above merely transfer gravity energy of the vehicle to the frame and power shaft, and partially dampen vibrations and shocks. There is a limit.

Therefore, excessive torque is generated by the load of the vehicle body that is applied to the power shaft of the vehicle to reduce the fuel economy, as well as the vehicle body is close to the road surface due to the heavy load, there is a problem that the vehicle accessories are damaged by the speed bumps and various structures.

Therefore, in order to solve the above problems, a hydraulic actuator is used instead of the leaf spring and the shock absorber (A). However, the hydraulic actuator is a device that converts the hydraulic energy of the compressed fluid into mechanical movement. Used to press against the surface.

In addition, the role of the hydraulic actuator is that when the tire moves up and down, when turning the vehicle, or when the squat occurs in the dive and the tail, which is a phenomenon in the front of the vehicle when braking or accelerating. It works to change.

Therefore, by additionally installing a shock absorber (A) and an adjustment means such as an actuator in the vehicle to increase the weight of the vehicle to reduce the fuel efficiency, there is a problem that should be applied only to luxury cars because the adjustment means are expensive.

Therefore, in order to solve the above problems, the present invention reduces the occurrence of excessive torque applied to the power shaft by using the shock absorber and the leaf spring device, which are suspension devices of the vehicle, by using some of the reaction forces in the gravity direction of the vehicle as a reaction force. The present invention also provides a shock absorber device that attenuates the weight and vibration of a vehicle so as to prevent the height of the vehicle body from being rapidly changed due to an excessive load, thereby preventing the parts of the vehicle from being damaged by the speed bumps or various structures.

The present invention for achieving the above object is a shock absorber device that is installed on the frame between the vehicle's axle and the body to absorb and cushion the vibration or shock generated during the running of the vehicle is a shock absorber device is attached to the shock absorber and the frame of the vehicle. And gap prevention fixture.
According to a preferred embodiment of the present invention, a shock absorber is installed on a frame between an axle of a vehicle and a vehicle body to absorb and cushion vibrations or shocks generated when the vehicle travels, the cylinder having an opening formed on an upper surface and a spring fastened to an upper surface thereof; A piston provided to flow in the longitudinal direction of the cylinder to pressurize and depressurize the fluid; An adjusting part for ejecting a fluid between the piston and the opening formed in the lower part of the cylinder; A fluid filled between the adjusting part and the piston; A piston rod having an upper surface of the piston to allow the piston to flow in the longitudinal direction of the cylinder through an opening formed in an upper portion of the cylinder; A body mount fixed at one side of the piston rod to a frame of the vehicle body to transmit a load of the vehicle; The fluid filled in the control part by the load transmitted to the body mount is branched through the opening formed in the lower part of the cylinder by the pressure to connect the hydraulic passage to the f1 hydraulic outlet, f2 hydraulic outlet, f3 hydraulic outlet It can be achieved by injecting hydraulic pressure to the power shaft and the frame.
At this time, in order to fasten the shock absorber to the frame of the vehicle, a fastening hole formed in the center to pass through the fastening hole formed in the frame, and a stepped portion formed therein to support the shock absorber inserted into the fastening hole, are formed by the frame and the bolt. A shock absorber device holder having a fixed block shape; It is preferable that the shock absorber fixed to the frame is configured to prevent the play of the bolt fastened tightly to both sides so that play does not occur from side to side.
In addition, the end of the hydraulic passage connected to the f1 hydraulic outlet to the hydraulic shaft ejected from the cylinder of the shock absorber to prevent the sag of the power shaft and the weight increase, the hydraulic passage 1 pedestal formed in the leaf spring at the lower end of the shaft The hydraulic passageway f2 is connected to the hydraulic passageway f2 pedestal attached to the frame spring with one end of the hydraulic passageway 2 connected to the leaf spring, and the hydraulic passageway 3 connected to the hydraulic passageway f3 corresponds to the opposite side of the hydraulic passageway f2 pedestal. It is preferable that the reaction force hydraulic pressure generated from the weight increase of the vehicle is ejected by being engaged with the hydraulic passage f3 pedestal attached to the frame.
In addition, the shock absorber device is mounted on the battery and the hybrid vehicle, the shock absorber is inserted into the frame and the shock absorber fixture to attenuate the gravity load by the weight of the battery itself, and the hydraulic support and the upper portion of the shock absorber The battery is located on the upper surface of the hydraulic support, and the lower portion of the shock absorber is branched from the hydraulic outlet to the left and right to form hydraulic passages 1 and 2, and the cylinders are integrally formed to support the hydraulic support at the end of the hydraulic passages 1 and 2. It is preferable to dampen the weight and vibration of the vehicle, characterized in that.
In addition, the shock absorber device is preferably equipped with a plurality of shock absorber devices in accordance with the increase in the weight of the battery that can be mounted on a plurality of batteries and hybrid vehicles.
In addition, the shock absorber device is preferably attenuated weight and vibration of the vehicle, characterized in that can be installed in the cargo loading portion can have a weight increase damping effect.

Accordingly, after the shock absorber device holder according to the present invention is attached to the frame of the vehicle, the gap preventing fixtures are fixed to the upper surface of the frame so as to prevent the left and right clearances of the shock absorber device holder.

The shock absorber formed in the shock absorber device holder and inserted into the frame and the fastening hole penetrated by the shock absorber forms a plurality of ejection outlets for ejecting the hydraulic pressure from the lower portion of the cylinder, and the hydraulic pressure ejected from the ejection outlet is applied to the lower portion of the power shaft and the frame. Connect the hydraulic passages to pressurize them.

The shock absorber according to the exemplary embodiment of the present invention configured as such a device receives the gravity energy of the vehicle and ejects the hydraulic pressure to the spout. The hydraulic pressure is excessively drooped by spraying the reaction force hydraulic pressure onto the power shaft and the frame through the hydraulic passage. Preventing and protecting the shaft and frame from excessive loads or damping some weight gain.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view showing a shock absorber according to a preferred embodiment of the present invention.

The shock absorber 100 is installed on the frame 27 between the vehicle axle and the vehicle body to absorb and cushion vibrations or shocks generated when the vehicle travels. The structure forms an opening 35 at the top and bottom and a spring 10 at the upper surface. ), The piston (7), the piston (6) and the cylinder (7), which are provided to pressurize and depressurize the fluid (5) by flowing in the longitudinal direction inside the cylinder (7) Between the opening 35 formed in the lower portion of the control unit 12 for ejecting the fluid 5, the fluid 5 filled between the control unit 12 and the piston 6, and the piston 6 On the upper surface of the piston rod (3) and one side of the piston rod (3) which allows the piston (6) to flow in the longitudinal direction of the cylinder (7) through the opening (35) formed in the upper portion of the cylinder (7) The body mount (2) is fixed to the frame of the vehicle body to transmit the load of the vehicle, and the body mount (2) The fluid 5 filled in the control part 12 by the flow of the piston rod 3 by the transmitted load branches through the opening 35 formed in the lower part of the cylinder 7 by pressurization, so that the f1 hydraulic outlet port 14 is discharged. The hydraulic passages 20, 22, and 25 are connected to the f2 hydraulic spout 13 and the f3 hydraulic spout 15 to inject a force generated by the hydraulic pressure to the power shaft 21 and the frame 27. The above-described vehicle includes, for example, not only a battery and a hybrid vehicle but also a hydrogen fuel cell vehicle and a general vehicle that is driven by driving wheels.

In the present invention, the shock absorber 100 receives the weight of the vehicle from the body mount 2 from the vehicle body, and the piston rod 3 fluidly operates in the cylinder 7 to fill the control part 12 ( When 5) is pressurized, the weight is transferred to the f1 hydraulic spout 14, the f2 hydraulic spout 13, and the f3 hydraulic spout 15 through the hydraulic pressure.

That is, a large concept of the present invention is based on the energy equation and can be seen in detail by the following equation.

F and cylinder displacement = f1xΔX + f2xΔX + f3xΔX

F body weight, f1 power to the shaft and u-bolt support, f2 and f3 to the frame support, ΔX is the small displacement of each component.

Therefore, by using the body force of a specific portion as a reaction force to the power shaft 21 or the frame 27 by the energy equation to protect the power shaft that receives the torsion or vertical load from the heavy load.

In addition, by providing the reaction force by the hydraulic pressure as much as the gravity load of the vehicle body to prevent excessive sag of the power shaft 21 and maintain a constant garage at all times even when the engine stops.

In addition, the hydraulic pressure sensor 33 detects the hydraulic pressure in the hydraulic passages 2, 3 (20, 25) of the f2 hydraulic outlet 13 and the f3 hydraulic outlet 15 for the excessive weight load on the shock absorber 100. It is a structure that acts as a pressure avoidance against sudden displacement amount control and excessive force of the power shaft 21 and provides a reaction force to the frame (27).

3 is a state diagram in which a shock absorber according to a preferred embodiment of the present invention is installed in a vehicle to support a power shaft and a frame.

The shock absorber 100 according to the preferred embodiment of the present invention is inserted into the fastening hole 34 formed in the vehicle body frame 27, and the fastening hole 34 has a stepped portion therein to support the shock absorber 100. 8) is formed.

Therefore, the shock absorber 100 inserted into the frame 27 receives the pressure transmitted through the body mount 2 and the lower part of the frame 27 through the body mount 2 so as to transmit the weight of the vehicle to the upper side. (14), the hydraulic passages 1, 2, 3 (22, 20, 25) are connected so as to hydraulically eject through the f2 hydraulic outlet (13), f3 hydraulic outlet (15).

In addition, the lower side of the shock absorber 100, both sides of the leaf spring 24 is fastened to the frame 27 by the frame 18, and the bumper rubber 16 between the frame 27 of the leaf spring 24 ), The power shaft 21 and the u-bolt 17 for fixing the power shaft 21 to the leaf spring 24 is fastened.

In addition, a hydraulic passage f1 pedestal 23 supporting the u bolt 17 and the power shaft 21 is attached to the lower plate spring 24 to which the u bolt 17 is fastened, and the frame 27 is fastened. The hydraulic passage f2 pedestal 19 and the hydraulic passage f3 pedestal 26 are attached to both lower portions thereof.

Therefore, the f1 hydraulic outlet 14 branched from the cylinder 7 of the shock absorber 100 is connected to the hydraulic passage 1 (22), and the end thereof is fastened to the hydraulic passage f1 pedestal 23, and the f2 hydraulic outlet 13 is provided. Is connected to the hydraulic passage 2 (20) end is fastened to the hydraulic passage f2 pedestal (19), f3 hydraulic outlet 15 is connected to the hydraulic passage 3 (25) is fastened to the hydraulic passage f3 pedestal (26) To spray the structure.

Therefore, the weight of the vehicle transmitted through the body mount 2 is discharged to the hydraulic pressure through the f1 hydraulic outlet 14, f2 hydraulic outlet 13, f3 hydraulic outlet 15 by the pressure of the piston (6) When the hydraulic pressure f1 hydraulic ejection port 14 injects hydraulic pressure into the lower hydraulic passage 1 pedestal 23 of the leaf spring 24, the hydraulic pressure is applied to prevent excessive torque increase of the power shaft 21 due to excessive force injection. The sensor 33 opens the hydraulic passage 2 (20) and the hydraulic passage 3 (25) to transfer the reaction force by excessive hydraulic pressure to the frame (27).

4A is an exploded perspective view illustrating a state in which a shock absorber according to a preferred embodiment of the present invention is fastened to a frame, and FIG. 4B illustrates a state in which a shock absorber according to a preferred embodiment of the present invention is fastened to a frame. It is a cross section.

The shock absorber device holder 28 for fixing the shock absorber 100 according to the preferred embodiment of the present invention to the frame 27 has a rectangular block shape and a fastening hole 34 formed in the frame 27 at the center thereof. A fastening hole 34 is formed at the center of the upper surface to penetrate, and the cylinder 7 of the shock absorber 100 is supported by the excessive force while supporting the shock absorber 100 inside the formed fastening hole 34. The bolt hole is formed at the stepped portion 8 and the upper surface edge by the counter bowling operation so as to be fixed to the frame 27 so as to be prevented from falling down) and is fixed by the bolt 29.

In addition, on both sides of the shock absorber device holder 28 is fixed to the gap prevention fixture 30 is fixed to the bolt 29 on the upper surface of the frame 27 to prevent the left and right play by the operation of the shock absorber 100. .

Figure 5a is a perspective view for explaining a structure for attenuating weight by using the hydraulic reaction force when the battery is loaded in the present invention, Figure 5b is a structure for attenuating the weight using the hydraulic reaction force when the battery is loaded in the present invention It is an enlarged cross-sectional view for explanation.

The present invention is a structure that attenuates the weight by installing a plurality of shock absorber device 100 in accordance with the increase in the weight of the battery 31 that can be loaded in a vehicle loading box or mounted in a plurality of batteries and hybrid vehicles.

The shock absorber device 100 is inserted into the frame 27 and the shock absorber device holder 28 so that a hydraulic support 32 and a battery 31 or a cargo are located on an upper surface of the hydraulic support 32. The lower part of the shock absorber 100 is branched from the hydraulic outlet 14 to the left and right to form hydraulic passages 1, 2 (22, 20), and the hydraulic passages 1 and 2 end support the hydraulic support 32 at the second end. It is a structure in which the cylinder 7 'is integrally formed.

Therefore, the weight of the battery 31 or the cargo itself is transmitted through the body mount 2 to pressurize the fluid 5 filled in the piston 6 by the force generated by the hydraulic passages 1, 2 (22, 20). The cylinder 7 'attenuates the gravity load supporting the hydraulic support 32.

As described above, the present invention serves to adjust the height of the vehicle without using a separate power and protects the power shaft and the frame from excessive weight load.

In addition, since the shock absorber device increases the force on the right side and the displacement on the right side as the force on the left side increases, it actively responds to the increase in the weight of the vehicle and prevents the vehicle from tipping over from the turning and centering of the center of gravity. It can be installed in the cargo loading part to get some weight damping effect.

In addition, since the shock absorber device operates by the reaction of gravity, it uses the gravity energy of the operating energy itself, thereby maintaining a constant riding comfort even when the engine is stopped.
As described above, the present invention has been described the device and the embodiment according to its use, but it is apparent to those skilled in the art that the various uses can be extended within the technical scope of the present invention, and the expansion of such uses is substantially within the equivalent scope. As long as it has the same configuration and substantially the same structure, it will be preferred to belong to the appended claims.

Claims (6)

delete delete A cylinder having an opening formed on an upper surface thereof and having a spring fastened to an upper surface thereof; A piston provided to flow in the longitudinal direction of the cylinder to pressurize and depressurize the fluid; An adjusting part for ejecting a fluid between the piston and the opening formed in the lower part of the cylinder; A fluid filled between the adjusting part and the piston; A piston rod having an upper surface of the piston to allow the piston to flow in the longitudinal direction of the cylinder through an opening formed in an upper portion of the cylinder; A body mount fixed at one side of the piston rod to a frame of the vehicle body to transmit a load of the vehicle; The fluid filled in the control part by the load transmitted to the body mount is branched through the opening formed in the lower part of the cylinder by the pressure to connect the hydraulic passage to the f1 hydraulic outlet, f2 hydraulic outlet, f3 hydraulic outlet The shock absorber device is installed on the frame between the axle and the vehicle body so as to inject hydraulic pressure to the power shaft and the frame to absorb and cushion the vibrations and shocks generated during the running of the vehicle; The end of the hydraulic passage connected to the f1 hydraulic outlet is fastened with the hydraulic passage 1 pedestal formed on the leaf spring at the bottom of the shaft to prevent the sag of the power shaft and the vehicle and attenuate the weight increase by the hydraulic pressure ejected from the cylinder of the shock absorber. The f2 hydraulic outlet port is connected to the frame of the hydraulic passage f2 pedestal attached to the frame spring and the end of the connected hydraulic passage 2 is located on one side of the leaf spring, and the hydraulic passage 3 connected to the f3 hydraulic outlet port corresponds to the opposite side of the hydraulic passage f2 pedestal. Shock absorber device for attenuating the weight and vibration of the vehicle, characterized in that the structure is coupled to the hydraulic passage f3 pedestal attached to eject the reaction force hydraulic pressure generated from the weight increase of the vehicle, respectively. The shock absorber device according to claim 3, wherein the shock absorber device includes a shock absorber mounted on a battery and a hybrid vehicle and inserted into the frame and the shock absorber device holder to attenuate the gravity load by the weight of the battery. A hydraulic support is installed at an upper portion of the shock absorber, a battery is located at an upper surface of the hydraulic support, and a lower portion of the shock absorber is branched from the hydraulic outlet to the left and right to form hydraulic passages 1 and 2, and the hydraulic passages 1 and 2. Shock absorber device for damping the weight and vibration of the vehicle, characterized in that the cylinder is formed integrally to support the hydraulic support at the end. 5. The shock absorber according to claim 4, wherein the shock absorber device is provided with a plurality of shock absorber devices to cope with the increase in the weight of the battery which can be mounted in the battery and the hybrid vehicle. Shock absorber device. 4. The shock absorber device according to claim 3, wherein the shock absorber device is installed in the cargo load portion to have a weight increase damping effect.

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