CN203659953U - Air damping device for mobile energy storage power vehicle - Google Patents

Abstract

An air shock absorber for a mobile energy storage power vehicle, the device includes a liquid flow energy storage battery and more than four air shock absorbers, and the air shock absorber is installed at the bottom of the liquid flow energy storage battery of the mobile power supply vehicle ; This device preferably has four air shock absorbers, which are respectively installed at the bottom of the four corners of the liquid flow energy storage battery of the mobile power supply vehicle; during the movement and transportation of the power supply vehicle, the air shock absorbers can ensure that the liquid flow energy storage battery is stable and stable. Safe, and the four air shock absorbers make the liquid flow energy storage battery evenly stressed, and the power supply vehicle is more stable during the moving and transportation process, which solves the problem of uneven deformation of the long-term movement spring of the shock absorber, short service life, and poor shock absorption effect The problem.

Description

An air shock absorbing device for a mobile energy storage power supply vehicle

technical field

The invention relates to the field of shock absorption, in particular to the field of air shock absorption devices. the

Background technique

At present in our country, mobile power vehicles generally use rubber shock-absorbing pads for shock-absorbing protection. However, this method of shock absorption has the following disadvantages: 1. If the shock absorber is hard, the impact force borne by the deformation of the spring will be directly transmitted to the shock absorber, which will damage the shock absorber; During exercise, the force impact on the rubber pad will be uneven, resulting in uneven deformation of the spring, which greatly reduces the shock absorption effect; 3. The service life is short; 4. The floor area is large. the

A mobile energy storage power supply. The energy storage device used in the car is a liquid flow energy storage battery. The electrolyte and the electrode are two separate and independent components. When the liquid flow energy storage battery is fully charged, the positive and negative electrolytes are stored separately. in their respective reservoirs. When it needs to be transported to the load site for emergency power supply, the requirements for shock protection during transportation are much higher than those of ordinary vehicles. Therefore, in view of the shock absorption problem of this type of mobile energy storage power supply vehicle, a more advanced and reliable shock absorption method is needed. the

Air shock absorption technology is one of the more advanced automobile shock absorption technologies. The principle of air shock absorption is to use the rigidity increase of the compressed gas in the air spring, that is, as the air spring is continuously compressed, its stiffness gradually increases, and at the same time, its internal gas is compressed or stretched into the air spring. Or discharge, resulting in air shock absorbing system with nearly ideal dynamic elastic characteristics, good shock absorbing effect. the

Contents of the invention

In order to overcome the deficiencies in the prior art, the present invention provides an air shock absorbing device for a mobile energy storage power supply vehicle, which can improve the shock absorption effect and better protect the liquid flow energy storage equipment in the mobile power supply vehicle, so that Its long-term safe and reliable operation prolongs the service life of the mobile power vehicle. the

Technical scheme of the present invention is:

An air shock absorbing device for a mobile energy storage power supply vehicle, including a liquid flow energy storage battery, the device also includes more than four air shock absorbers, and the air shock absorbers are installed on the liquid flow energy storage battery of the mobile power supply vehicle The bottom; preferably air shock absorber is four, is respectively installed in the bottom of four corners of the liquid flow energy storage battery of mobile power supply vehicle. the

The air shock absorber includes an air spring with compressed air inside and a shock absorber with variable damping. One end of the shock absorber is located inside the air spring, and the two are fixed and tightly connected. The air spring includes a closed bag filled with compressed air, a stopper and a buckle, and a height adjustment valve is arranged on the outside of the shock absorber. The closed bag includes an upper cover, a capsule and a piston in the shock absorber. The capsule is filled with compressed air to form an air bag. The air bag is connected to the upper cover through a buckle. The piston is located inside the air bag. the

The air spring also includes an additional air chamber (7), and an orifice (8) is provided between the air spring and the additional air chamber (7). The air spring is a cord-reinforced rubber bladder, which is fatigue-resistant, heat-resistant, and has good dimensional stability. the

The present invention has following positive effect:

1) The air spring has a relatively constant low natural vibration frequency, which can improve the driving stability of the power supply vehicle; 2) Through the height adjustment valve, the working height of the air spring can be kept constant under any load, and the spring can also be operated under the same load. The bottom has different heights, so it can further ensure the stability of the power supply vehicle during transportation; 3) The stiffness of the air spring changes with the load, so the natural frequency of the air spring remains unchanged under any load, so that the spring device has almost constant 4) Through the gas connection principle in the air spring, the balance of multi-bridge axle load and braking force can be easily realized; 5) There is a section between the air spring body and the additional air chamber The orifice can play a damping role, so that the power vehicle can run in a balanced manner on relatively bad roads; 6) The deformation characteristics of the air spring are better than that of the rubber shock absorber, see the comparison force travel curve in Figure 4-6. the

Description of drawings

Figure 1 Installation structure diagram of air shock absorber;

Figure 2 is a schematic diagram of the installation of the air shock absorber;

Fig. 3 structure diagram of air shock absorber;

Fig. 4 air spring force travel curve;

Figure 5 SL-300-12 Rubber Shock Pad Static Force Stroke Curve;

Figure 6 SL-300-12 rubber shock pad dynamic force travel curve;

In Figure 3, 1 is the upper cover, 2 is the buckle, 3 is the piston, 4 is the stopper, 5 is the height adjustment valve, 6 is the capsule, 7 is the additional air chamber, and 8 is the throttle hole;

In Figure 4, 9 is the full load state, 10 is the design state, and 11 is the no-load state;

In FIG. 5 , 12 is Area 10000 mm ² , 13 is Area 5000 mm ² , and 14 is Area 2500 mm ² .

Detailed ways

As shown in Figure 1 and Figure 2, an air shock absorber for a mobile energy storage power supply vehicle, the device includes a liquid flow energy storage battery and more than four air shock absorbers, and the air shock absorbers are installed on the mobile power supply The bottom of the liquid flow energy storage battery of the vehicle; this device preferably has four air shock absorbers, which are respectively installed at the bottom of the four corners of the liquid flow energy storage battery of the mobile power vehicle; during the mobile transportation of the power vehicle, the air shock absorbers It can ensure the stability and safety of the liquid flow energy storage battery, and the four air shock absorbers make the liquid flow energy storage battery evenly stressed, and the power supply vehicle is more stable during the moving and transportation process. the

As shown in Figure 3, the air shock absorber includes an air spring with compressed air inside and a shock absorber with variable damping. One end of the shock absorber is located inside the air spring, and the two are fixed and tightly connected. The air spring has a relatively constant low natural vibration frequency, which can improve the driving stability of the power vehicle, and the deformation characteristics of the air spring are better than that of the rubber shock absorber. It can be obtained from the comparison force travel curve charts in Figure 4, Figure 5 and Figure 6 It is known that the shock absorber is mainly used to suppress the shock when the spring rebounds after absorbing the shock and the impact from the road surface. The use of a shock absorber with variable damping makes the natural frequency low and the shock absorber has a long working life. the

The main parts of the air spring are the upper cover 1, the buckle ring 2, the piston 3 and the stopper 4, and also include the capsule 6 and the height adjustment valve 5; the upper cover 1, the piston 3 and the capsule 6 form a closed bag, and the closed bag is filled with compressed air Form the air bag; the piston 3 is a part of the shock absorber located at one end of the shock absorber, the air bag is connected to the upper cover 1 through the buckle 2, the piston 3 is located inside the air bag, and the stopper 4 is arranged at the end where the piston 3 is connected to the air bag. 4 It can buffer the instantaneous impact load of the road surface to avoid severe bumps in the vehicle. The air spring also includes an additional air chamber 7, and a throttling hole 8 is provided between the air spring and the additional air chamber 7, and the throttling hole 8 can play a damping role. The air spring is a cord-reinforced rubber bladder, which is fatigue-resistant, heat-resistant, and has good dimensional stability. the

The height control valve 5 can keep the working height of the air spring constant under any load, and can also make the spring have different heights under the same load. Therefore, the stability of the power supply vehicle during transportation can be further ensured. The air spring is a cord-reinforced rubber bladder. The cord-reinforced rubber bladder is fatigue-resistant, heat-resistant, and has good dimensional stability. Compressed gas (air pressure is 0.2-0.7MPa) is filled in the sealed air spring, and the gas is used to The compressibility of the air spring acts as a spring; through the principle of gas connection in the air spring, the balance of the axle load and braking force of the multi-axle can be easily realized, and the service life of the axle is increased; there is a device between the air spring body and the additional air chamber A throttling hole can play a damping role, so that the power car can run in a balanced way on relatively bad roads. the

The height regulating valve 5 of the airbag can control the air pressure in the bag to make the stiffness of the air spring adjustable. When the load acting on the spring increases, the air pressure increases, and the stiffness of the spring increases. Conversely, when the load decreases, the spring increases. The air pressure inside drops and the stiffness decreases. The stiffness of the air spring changes with the load, so the natural vibration frequency remains unchanged under any load, so that the spring device has almost constant performance and prolongs the life of the shock absorber. the

The coefficient of elasticity of the air spring can also be automatically adjusted as required, and the coefficient of elasticity of the spring is adjusted through the flow of air in the air bag skin cavity. On short-wave roads or high-speed cornering, part of the air in the bellows will be locked. When the bellows is pressurized, the air flow will decrease, making the spring stiffer, so as to reduce body fluctuation and improve body stability. On ordinary roads, all air can flow freely, and when the bellows are pressurized, the air flow increases, thus providing soft springs and maximum driving comfort. When driving at low speed for a long time, the spring will be softened to improve shock absorption comfort and safety. the

The air shock absorber also incorporates traditional chassis lifting technology. When driving at high speed, the height of the vehicle body is automatically lowered, thereby improving the performance of sticking to the ground, ensuring good high-speed driving stability and reducing wind resistance and fuel consumption. When passing a bumpy road at a slow speed, the chassis is automatically raised to improve passing performance. In addition, the air damping system can also automatically maintain the level of the vehicle body, regardless of no load or full load, the height of the vehicle body can be constant, so that under any load conditions, the spring travel of the damping system remains constant, so that the damping characteristics are basically the same. will not be affected. So even when fully loaded, the body is easy to control. the

Claims (7)

1. for an air damping device for mobile accumulation power supply car, comprise liquid flow energy storage battery, it is characterized in that, this device also comprises four above air bumps, and air bump is arranged on the bottom of the liquid flow energy storage battery of mobile power vehicle.

2. air damping device according to claim 1, is characterized in that, described air bump is four, is arranged on respectively the bottom, four turnings of the liquid flow energy storage battery of mobile power vehicle.

3. according to the air damping device described in claim 1 any one, it is characterized in that, described air bump comprises that inside is equipped with compressed-air actuated air spring and the variable vibration absorber of damping, and one end of vibration absorber is positioned at air spring inside, and the two fixing compact connects.

4. air damping device according to claim 3, is characterized in that, described air spring comprises and be filled with compressed-air actuated sealing capsule, backstop (4) and clasp (2), and vibration absorber outside is provided with height adjusting valve (5).

5. air damping device according to claim 4, it is characterized in that, described sealing capsule comprises upper cover (1), capsule (6) and is located at the piston (3) in vibration absorber, capsule (6) is filled with compressed air and forms air bag, air bag is connected with upper cover (1) by clasp (2), piston (3) is positioned at inside air bag, and backstop (4) is arranged on one end that piston (3) is connected with air bag.

6. air damping device according to claim 3, is characterized in that, described air spring also comprises auxiliary air reservoir (7), between air spring and auxiliary air reservoir (7), is provided with throttle orifice (8).

7. air damping device according to claim 3, is characterized in that, described air spring is the rubber bag tank that cord strengthens.

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