High-frequency valveless pump on the basis of intelligent material

Abstract

The invention belongs to a hydraulic pump manufacturing technology, and relates to the improvement on the working principle of a traditional hydraulic pump. The new type pump mainly comprises an intelligent material driving magnifying mechanism, a metal diaphragm vibration boosting mechanism, an oil absorption circuit and an oil drain non-return circuit. The intelligent material driving magnifying mechanism performs amplitude amplification on the high frequency vibration energy outputted by intelligent material through an arc type flexible hinge, and drives the metal diaphragm vibration boosting mechanism, the middle part of a circular metal diaphragm in forced vibration generates a ring-shaped transverse wave diffusing outwards, the upper and lower surfaces of the metal diaphragm and theupper and lower dish-shaped surfaces of a pump cavity form two groups of closed chambers moving outwards, the closed chambers forces oil continuously from a low pressure cavity to a high pressure cavity, thus realizing oil pumping. When a traditional reciprocating pump pumps oil in each vibration cycle, a hydraulic valve changes the direction of the oil circuits, resulting the bottleneck that working frequency can not be too high, if the structure is employed, the bottleneck can be avoided, the high frequency characteristic of the intelligent material can be fully applied to the manufacture field of hydraulic pumps.

Description

technical field

[0001] The invention belongs to the hydraulic pump manufacturing technology and relates to the improvement of the traditional hydraulic pump principle. Background technique

[0002] Hydraulic pumps are widely used in engineering machinery, hoisting and transportation, metallurgy, aerospace, ships, biology, medicine and other fields. With the emergence of smart materials, especially piezoelectric ceramics and giant magnetostrictive materials, and their performance gradually Improvement. In recent decades, many kinds of hydraulic pumps based on intelligent materials have been studied at home and abroad. At present, this hydraulic pump has certain applications in many fields, but due to the small flow rate of the existing pumps, its application is not widespread. . The reason is that the existing hydraulic pumps based on smart materials are all manufactured on the principle of reciprocating pumps. They use the expansion and contraction or vibration of smart mat...

Examples

Embodiment Construction

[0009] The present invention will be described in further detail below.

[0010] The hardware of the hydraulic pump mainly includes: an intelligent material drive amplification mechanism, a metal diaphragm vibration booster mechanism, an oil suction circuit, and an oil discharge non-return oil circuit.

[0011] The intelligent material drives the amplifying mechanism, which uses intelligent materials to convert electrical energy into mechanical vibration energy, and amplifies and outputs the mechanical displacement; the metal diaphragm vibration booster mechanism uses the vibration of the metal diaphragm to generate annular shear waves, realizing the transformation from the low pressure cavity to the The function mechanism of pumping oil in the high-pressure chamber; the oil suction circuit, which connects the oil suction port and the low-pressure chamber, and ensures the equal pressure of the upper and lower low-pressure chambers; the oil discharge non-return oil circuit, conn...

technical field

[0001] The invention belongs to the hydraulic pump manufacturing technology and relates to the improvement of the traditional hydraulic pump principle. Background technique

[0002] Hydraulic pumps are widely used in engineering machinery, hoisting and transportation, metallurgy, aerospace, ships, biology, medicine and other fields. With the emergence of smart materials, especially piezoelectric ceramics and giant magnetostrictive materials, and their performance gradually Improvement. In recent decades, many kinds of hydraulic pumps based on intelligent materials have been studied at home and abroad. At present, this hydraulic pump has certain applications in many fields, but due to the small flow rate of the existing pumps, its application is not widespread. . The reason is that the existing hydraulic pumps based on smart materials are all manufactured on the principle of reciprocating pumps. They use the expansion and contraction or vibration of smart mat...

Examples

Embodiment Construction

[0009] The present invention will be described in further detail below.

[0010] The hardware of the hydraulic pump mainly includes: an intelligent material drive amplification mechanism, a metal diaphragm vibration booster mechanism, an oil suction circuit, and an oil discharge non-return oil circuit.

[0011] The intelligent material drives the amplifying mechanism, which uses intelligent materials to convert electrical energy into mechanical vibration energy, and amplifies and outputs the mechanical displacement; the metal diaphragm vibration booster mechanism uses the vibration of the metal diaphragm to generate annular shear waves, realizing the transformation from the low pressure cavity to the The function mechanism of pumping oil in the high-pressure chamber; the oil suction circuit, which connects the oil suction port and the low-pressure chamber, and ensures the equal pressure of the upper and lower low-pressure chambers; the oil discharge non-return oil circuit, conn...

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