Vibration energy recovering device

A vibration energy recovery and receiving device technology, applied in the direction of machines/engines, mechanical power generating mechanisms, mechanical equipment, etc., can solve the problems of low energy recovery efficiency, achieve low cost, improve vibration reduction characteristics, and wide application range Effect

Inactive Publication Date: 2015-03-04
HUNAN UNIV
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AI-Extracted Technical Summary

Problems solved by technology

It makes the motor rotor rotate forward and reverse c...
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Method used

[0055] Generators (224, 244) or hydraulic motors (222, 242) can be connected to flywheels to improve smooth running.
[0056] The transmission device connecting the ...
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Abstract

The invention discloses a vibration energy recovering device. The vibration energy recovering device comprises a vibration receiving device and an energy feedback device, wherein the vibration receiving device can be a damper or a hydraulic cylinder; the energy feedback device comprises a hydraulic loop, a one-way valve system and a hydraulic motor; two main branches of the hydraulic loop are connected with different cavities of the vibration receiving device respectively; two parallel hydraulic branches are connected in series with one-way valves and hydraulic motors respectively; the one-way valves are arranged oppositely in order that the two branches only generate opposite fluid flow in a single direction. According to the working principle, a piston assembly rod of the vibration receiving device (1) is used for receiving external vibration; the piston assembly rod and a cylinder block perform generate relative movement; pressure is generated in the cylinder, and hydraulic oil flows into the energy feedback device (2); when a second cavity (14) is compressed, a first one-way valve (220) is switched on, and a first hydraulic motor (222) works; when a second cavity (10) is compressed, a second one-way valve (240) is switched on, and a second hydraulic motor (242) works. The vibration energy recovering device is simple in structure, and has high reliability; energy of movement in two directions during vibration can be efficiently recovered, and a damping effect is achieved.

Application Domain

Machines/enginesMechanical power devices

Technology Topic

Energy feedbackCylinder block +4

Image

  • Vibration energy recovering device
  • Vibration energy recovering device
  • Vibration energy recovering device

Examples

  • Experimental program(1)

Example Embodiment

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples.
[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0027] refer to figure 1 , the embodiment of the present invention includes:
[0028] A vibration energy recovery device, comprising: a first check valve (220) on a first branch (22) of a hydraulic circuit, a first hydraulic motor (222), a first generator (224); a second branch of the hydraulic circuit The second one-way valve (240), the second hydraulic motor (242), and the second generator (244) on the road (24); the vibration receiving device (1) is a shock absorber; the first cavity (10) is There is no rod cavity, and the second cavity (14) is a rod cavity.
[0029] The part of the energy feeding device (2) can be arranged with piping outside the vibration receiving device (1), and can also be integrated inside the vibration receiving device (1). Its main function is to ensure that the direction of the liquid flow on the first branch (22) and the second branch (24) maintains one direction and does not reverse, and the first hydraulic motor (222) and the second hydraulic motor (242) rotate in one direction. ) to respectively drive the first generator (224) and the second generator (244) to generate electricity, and the installation sequence of the check valves (220, 240) and hydraulic motors (222, 242) on each branch is not limited. The principle is that when the rod cavity (14) of the shock absorber (1) is compressed, the first one-way valve (220) on the first branch (22) conducts, and the first hydraulic motor (222) works to drive the first hydraulic motor (222). A generator (224) generates electricity; when the rodless cavity (10) of the shock absorber (1) is compressed, the second check valve (240) on the second branch (24) is conducted, and the second hydraulic motor (242 ) work to drive the second generator (244) to generate electricity.
[0030] In this embodiment, the relative motion of the shock absorber cylinder and the piston group caused by the vibration is converted into the oil flow in the hydraulic circuit, which is converted into a single-direction hydraulic flow on the first and second branches to drive the respective hydraulic motors to rotate. The hydraulic motors drive their respective generators to generate electricity, thereby converting vibration mechanical energy into electrical energy.
[0031] Compared with other similar devices, this embodiment has the following advantages:
[0032] In this embodiment, the motion energy in both directions during the vibration process is recovered and utilized, and the energy recovery efficiency is improved.
[0033] The hydraulic motor in this embodiment does not have the phenomenon of continuous positive and negative rotation, which improves the efficiency of energy recovery.
[0034] In this embodiment, the damping force can be generated by relying on the counter electromotive force generated by the generator.
[0035] The working process of this embodiment is:
[0036] When vibrating, the piston group (12) and the shock absorber cylinder produce relative motion, the rod cavity (14) is compressed, the pressure in the cavity increases, the pressure in the rodless cavity (10) decreases, and the first branch of the hydraulic circuit ( 22) The upper first one-way valve (220) is turned on, the second one-way valve (240) on the second branch of the hydraulic circuit (24) is closed, the first hydraulic motor (222) works, and the motion is transmitted to the The first generator (224) generates electricity; the rodless chamber (10) of the shock absorber (1) is compressed, the pressure in the chamber increases, and the pressure in the rod chamber (14) decreases, and the second branch of the hydraulic circuit (24 ) on the second one-way valve (240) conducts, the first one-way valve (220) on the first branch of the hydraulic circuit (22) closes, the second hydraulic motor (242) works, and the rotational motion is transmitted to the The second generator (244) generates electricity.
[0037] refer to figure 2 , the embodiment of the present invention includes:
[0038] with reference figure 1 The corresponding embodiment of the invention is similar.
[0039] with reference figure 1 Compared with the corresponding embodiment of the invention, the difference is that the transmission mechanism transmits the rotational motion of the output shafts of the two hydraulic motors (222, 242) to the same generator (224).
[0040] with reference figure 1 Compared with the corresponding invention embodiment, the advantage is:
[0041] This embodiment reduces the number of generators, simplifies the structure, saves space and reduces costs.
[0042] In this embodiment, the generator can be continuously driven by the hydraulic motor (222, 242) when vibrating in two directions, and the operation is more stable.
[0043] refer to image 3 , the embodiment of the present invention includes:
[0044] with reference figure 1 The corresponding embodiment of the invention is similar.
[0045] with reference figure 1 Compared with the embodiment of the invention, the shock absorber is replaced by a hydraulic cylinder.
[0046] with reference figure 1Compared with the embodiment of the invention, the first accumulator (221) is installed on the first branch (22), and the second accumulator (241) is installed on the second branch (24). The installation sequence of the check valve (220, 240), the hydraulic motor (222, 242), and the accumulator (221, 241) is not limited.
[0047] with reference figure 1 Compared with the corresponding embodiment of the invention, it is convenient to fill a certain pressure liquid in the hydraulic circuit.
[0048] with reference figure 1 Compared with the corresponding embodiments of the invention, the accumulators (221, 241) can help buffer the oscillation of the internal fluid, make the hydraulic motors (224, 244) rotate more stably, and improve energy recovery efficiency.
[0049] The accumulators (221, 241) can be in various forms, for example, a diaphragm type or a piston spring type can be selected.
[0050] refer to Figure 4 , the embodiment of the present invention includes:
[0051] with reference image 3 The corresponding embodiment of the invention is similar.
[0052] with reference image 3 Compared with the corresponding embodiment of the invention, the third accumulator (260) is arranged in the second trunk path (26) of the hydraulic circuit, and the number of the accumulator is only one.
[0053] with reference image 3 Compared with the corresponding embodiment of the invention, the advantages are similar, and in addition, because one energy accumulator is reduced, it is more convenient for space arrangement and lowers the cost.
[0054] In addition, the above embodiments can also be improved to have the following characteristics:
[0055] The generator (224, 244) or the hydraulic motor (222, 242) can be connected to the flywheel to improve the running stability.
[0056] The transmission device connecting the generator (224, 244) and the hydraulic motor (222, 242) can be provided with a flywheel and a ratchet mechanism to improve the smooth operation of the generator.
[0057] The components other than the vibration receiving device (1) can be installed outside the vibration receiving device (1), and can also be integrated and installed inside the vibration receiving device (1), such as being partly or completely integrated inside the vibration receiving device (1), forming The damping force of the separate shock absorber is provided by the reaction force of the counter electromotive force generated by the generator, and a damping valve can also be installed additionally.
[0058] Both ends of the hydraulic circuit main road (20, 26) can be connected to cavities of different vibration receiving devices (1), and can also be connected to rodless cavities and rod cavities of the same vibration receiving device (1).
[0059] The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.

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