CN204704306U - Built-in sliding-vane motor formula energy-recovery shock absorber - Google Patents

Abstract

The utility model relates to a built-in blade motor type energy recovery shock absorber. It is mainly composed of a damping cylinder, a piston, a motion conversion mechanism and a generator. The damping cylinder includes a cylinder body and a hollow piston rod; the piston is composed of a vane motor and upper and lower sealing plates, and the piston is built into the cylinder body, which divides the cylinder body into an upper oil chamber and a lower oil chamber. When the vehicle is running, when the uneven road makes the vehicle vibrate, the pressure of the upper and lower oil chambers is not equal, and there is a pressure difference. When the oil in the high-pressure chamber flows to the low-pressure chamber through the piston, it will push the vane motor in the piston to rotate, and the motion conversion mechanism will The two-way rotation of the vane motor is converted into one-way rotation, which drives the generator to generate electricity, and recovers the vibration energy in the form of electrical energy. The utility model has a simple structure, can effectively recover the vibration energy of the automobile, and reduces the fuel consumption of the automobile.

Description

Built-in vane motor type energy recovery shock absorber

technical field

The invention relates to an energy recovery shock absorber with a built-in vane motor, in particular, it can recover the energy generated by the vibration during the running of the vehicle when it is applied to the vehicle.

Background technique

At present, the shock absorber commonly used in automobiles is to force the hydraulic oil in the cylinder to pass through the one-way valve on the piston. The thermal energy of the liquid is dissipated into the atmosphere to achieve the purpose of damping vibration. If this part of energy can be effectively recycled, it can reduce the energy consumption of automobiles and achieve the purpose of saving energy. Existing energy recovery type shock absorbers have various forms, but there are also certain deficiencies.

Such as the Chinese patent of publication number CN101985965A has applied for a kind of automobile energy regenerative shock absorber, and this regenerative shock absorber comprises upper and lower two working cylinders, is provided with a generator and a set of planetary gears in the upper working cylinder, one-way The transmission mechanism composed of the clutch is equipped with a motion conversion mechanism in the lower working cylinder. The motion conversion mechanism is a ball screw pair, which converts the linear motion caused by the vibration of the automobile suspension into a rotary motion, and through the clutch direction in the transmission mechanism. The opposite one-way clutch converts up and down motion into rotational motion in the same direction, and converts energy into electrical energy through a generator for utilization. However, the disadvantage of this energy recovery system is that the system responds slowly to high-frequency vibrations and has a low lifespan.

As described in Chinese patent CN203784182U, a linear motor is applied to the shock absorber, and a linear motor is integrated on the shell of the double-tube shock absorber by using the principle of relative linear motion between the piston rod and the shock absorber cylinder. While reducing vibration through traditional shock absorbers, linear motors can be used to provide power or recover the vibration energy of the suspension to achieve the purpose of energy recovery. However, this linear motor type energy recovery system has a large leakage flux and low energy feeding efficiency.

For example, the publication number is CN101749353A patent application hydraulic electric energy feed type shock absorber, this invention includes a hydraulic circuit, a working chamber and a piston, the working chamber is divided into two parts: The energy generating cavity is connected to the external generator through the transmission shaft, the accumulator is located in the energy storing generating cavity, and the hydraulic circuit has a plurality of one-way valves to form a hydraulic rectifying bridge. The oil in the oil chamber on the pressure-increased side flows through the hydraulic rectifier bridge and hydraulic motor, and then enters the oil chamber on the other side. The oil drives the motor to always rotate in the same direction, and the vibration mechanical energy is converted into electrical energy for storage to achieve energy saving. However, the structure of this invention has a low energy utilization rate due to the adoption of a plurality of one-way valves to form a hydraulic rectifying bridge. In addition, the piston spring type accumulator used will lose its effect when the interior is filled with hydraulic oil.

Contents of the invention

The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art above, the present invention proposes a built-in vane motor type energy recovery shock absorber, which converts the vibration mechanical energy recovery into electric energy by a simple electromechanical means, so as to achieve Make the energy recovery shock absorber closer to the purpose of practical application.

The technical scheme adopted by the present invention is:

A built-in vane motor type energy recovery shock absorber, which is composed of a damping cylinder, a piston, a motion conversion mechanism and a generator; the damping cylinder includes a cylinder body and a hollow piston rod; the piston is located in the cylinder body, and the cylinder body It is divided into an upper oil chamber and a lower oil chamber; the two ends of the output shaft of the vane motor in the piston are installed on the hollow piston rod by bearings, and connected with the motion conversion mechanism through a coupling; the motion conversion mechanism is connected with the generator.

The piston is composed of a vane motor, an upper sealing plate and a lower sealing plate.

The vane motor is a double-acting vane motor.

The upper sealing plate and the lower sealing plate respectively have two waist-shaped windows in the working area corresponding to the vane motor.

When the vehicle is running on uneven roads, the wheels vibrate the cylinder body up and down along the axis of the hollow piston rod relative to the vehicle body through the suspension. , to push the vane motor in the piston to rotate, and the output shaft of the vane motor is installed on the hollow piston rod with bearings. The bidirectional rotation of the vane motor is converted into one-way rotation through the motion conversion mechanism, which drives the generator to generate electricity, and can efficiently convert vibration energy. into electrical energy storage.

Description of drawings

Fig. 1 is the structural representation of the present invention.

Figure 2 is a schematic diagram of the cross-sectional structure of the piston.

Figure 3 is a top view of the upper sealing plate.

Figure 4 is a top view of the lower sealing plate.

In the figure: 1. Cylinder block; 2. Lower sealing plate; 3. Vane motor; 4. Upper sealing plate; 5. Hollow piston rod; 6. Output shaft; 7. Guide seat; 8. Coupling; 9. Movement Conversion mechanism; 10. Generator; 11. Upper mounting ring; 12. Bearing; 13. Floating piston; 14. Air bag; 15. Lower mounting ring; 16. Waist window of upper sealing plate; 17. Waist window of lower sealing plate .

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1 of the specification, a built-in vane motor type energy recovery shock absorber is mainly composed of a damping cylinder, a piston, a transmission mechanism, a motion conversion mechanism and a generator. The damping cylinder includes a cylinder body (1) and a hollow piston rod (5); the piston is composed of a built-in double-acting vane motor (3), a lower sealing plate (2), an upper sealing plate (4), and an upper sealing plate ( 4) Two upper sealing plate waist-shaped windows (16) are processed in the working area corresponding to the vane motor, and the lower sealing plate (2) is processed with two lower sealing plate waist-shaped windows (17) in the working area corresponding to the vane motor; The transmission mechanism consists of an output shaft (6), a bearing (12) and a coupling (8).

The piston is located in the cylinder body (1), which divides the cylinder body (1) into an upper oil chamber and a lower oil chamber, and the two ends of the output shaft (6) of the vane motor (3) in the piston are installed on the hollow piston rod with bearings (12). (5) is connected with the motion conversion mechanism (9) through the coupling (8), and the motion conversion mechanism (9) is connected with the generator (10).

During the compression stroke, the wheel moves closer to the vehicle body, the cylinder body (1) moves upward along the axis of the hollow piston rod (5) under the guidance of the guide seat (7), the shock absorber is compressed, and the oiling of the cylinder body (1) The pressure in the lower oil chamber decreases, the pressure in the lower oil chamber increases, and a pressure difference is formed between the upper and lower oil chambers; the hydraulic oil enters the vane motor (3) in the piston through the waist window (17) of the lower sealing plate, and flows from the waist window (17) of the upper sealing plate 16) Outflow, because the hydraulic oil acts on the vane motor (3) and there is a pressure difference between the two ends of the vane, so the hydraulic oil pushes the vane motor (3) to rotate clockwise from the top view, and the output shaft (6) rotates with the vane motor (3) , the motion conversion mechanism (9) is driven to rotate through the coupling (8), and the motion conversion mechanism (9) drives the generator (10) to rotate to generate electricity, and the vibration energy is recovered in the form of electric energy.

Since the volume of the hollow piston rod (5) changes when entering and exiting, during the compression stroke, the hollow piston rod (5) occupies the volume of the upper oil chamber, and the increased volume of the upper oil chamber is smaller than the decreased volume of the lower oil chamber, and the hydraulic oil pushes the floating The piston (13) moves down to compress the air bag (14), automatically compensating for the volume occupied by the hollow piston rod (5).

During the extension stroke, the wheel is far away from the vehicle body, the cylinder (1) moves downward along the axis of the hollow piston rod (5), the shock absorber is stretched, the pressure of the upper oil chamber of the cylinder (1) increases, and the pressure of the lower oil chamber decreases , the upper and lower oil chambers form a pressure difference; the hydraulic oil enters the vane motor (3) in the piston through the waist-shaped window (16) of the upper sealing plate, and flows out from the waist-shaped window (17) of the lower sealing plate, and the hydraulic oil pushes the vane motor ( 3) Rotate counterclockwise according to the top view, the output shaft (6) rotates with the blade motor (3), drives the generator (10) to rotate and generate electricity through the coupling (8) and the motion conversion mechanism (9), and recovers the vibration energy.

Similarly, due to the existence of the hollow piston rod (5), the hydraulic oil flowing from the upper oil chamber during the stretching stroke is not enough to fill the increased volume of the lower oil chamber, and the air bag (14) pushes the floating piston (13) to move upward to automatically replenish.

The motion conversion mechanism (9) converts the two-way rotation of the vane motor (3) into the same direction of rotation through the installation of one-way bearings and gear systems in opposite directions, and increases the speed to the point where the generator has high power generation efficiency. Speed zone, improve the recycling rate of vibration energy.

Claims (4)

1. a built-in sliding-vane motor formula energy-recovery shock absorber, is characterized in that: be made up of cushion cylinder, piston, movement conversion mechanism and generator; Cushion cylinder comprises cylinder body (1) and hollow piston rod (5); Piston is arranged in cylinder body (1), and cylinder body (1) is divided into upper oil cavitie and lower oil cavitie; Output shaft (6) two ends of the sliding-vane motor (3) in piston utilize bearing (12) to be arranged on hollow piston rod (5), are connected with movement conversion mechanism (9) by coupling (8); Movement conversion mechanism (9) is connected with generator (10).

2. built-in sliding-vane motor formula energy-recovery shock absorber according to claim 1, is characterized in that: described piston is made up of sliding-vane motor (3), upper sealing panel (4) and lower seal plate (2).

3. built-in sliding-vane motor formula energy-recovery shock absorber according to claim 2, is characterized in that: described sliding-vane motor (3) adopts double-action sliding-vane motor.

4. built-in sliding-vane motor formula energy-recovery shock absorber according to claim 2, is characterized in that: upper sealing panel (4) and lower seal plate (2) respectively have two kidney-shaped windows in the working area of corresponding sliding-vane motor.