CN106837916A - A kind of actuator based on one-way hydraulic pump - Google Patents
A kind of actuator based on one-way hydraulic pump Download PDFInfo
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- CN106837916A CN106837916A CN201510881129.2A CN201510881129A CN106837916A CN 106837916 A CN106837916 A CN 106837916A CN 201510881129 A CN201510881129 A CN 201510881129A CN 106837916 A CN106837916 A CN 106837916A
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- China
- Prior art keywords
- hydraulic pump
- way hydraulic
- magnetic valve
- actuator
- pressurized strut
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Abstract
The invention belongs to technical field of hydraulic pressure, it is related to a kind of innovative design of the actuator scheme based on one-way hydraulic pump.It includes：One-way hydraulic pump, accumulator, the magnetic valve of two two-bit triplets, a pressurized strut composition.Characterized in that, actuator uses one-way hydraulic pump as driving power source.Pressurized strut [5] motion commutation and the switching of failure modalities are realized using magnetic valve [3] and [4], by controlling the on off operating mode of magnetic valve, the commutation control to pressurized strut [5] direction of motion is realized.The present invention realizes the power-by-wire actuator design based on one-way hydraulic pump, propose a kind of actuator scheme of use magnetic valve commutation, solve using one-way hydraulic pump, especially low power one-way hydraulic pump as driving power source, traditional commutation element has restriction loss.It is an advantage of the invention that：Actuator is controlled without restriction loss, simple structure.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, it is related to a kind of actuator based on one-way hydraulic pump.
Background technology
Start technology is made trend power-by-wire start direction and is developed by conventional electro-hydraulic servo, and electric hydrostatic is made
Dynamic device is a kind of typical power-by-wire actuator, using hydraulic pump as power drive source, for
One-way hydraulic pump, the inlet port and oil discharge outlet of pump are changeless, and flow pressure needs increase to change
Commutation could be realized to element, and traditional commutation element such as servo valve is a kind of throttling control valve, energy
Amount loss is big, and excessive restriction loss will cause actuator performance to be unable to reach desired value.
The content of the invention
The purpose of the present invention is：The present invention seeks to propose a kind of power of use magnetic valve commutation
Fax actuator scheme, solves to use one-way hydraulic pump, and especially low power one-way hydraulic pump is made
It is driving power source, traditional commutation element has restriction loss.
The technical scheme is that：A kind of actuator based on one-way hydraulic pump, including it is following several
Individual part：Accumulator [2], magnetic valve A [3] and magnetic valve B [4] and pressurized strut [5].Unidirectional liquid
The oil discharge outlet and inlet port of press pump [1] and magnetic valve A [3] and oil-feed and oil return with magnetic valve B [4]
It is connected, accumulator [2] is connected with the inlet port of one-way hydraulic pump [1], the control chamber of magnetic valve A [3]
Control chamber is stretched out with pressurized strut [5] to be connected, the control chamber of magnetic valve A [4] is retracted with pressurized strut [5] and controlled
Chamber processed is connected, and realizes the motion control of actuator.
It is an advantage of the invention that：Actuator is controlled without restriction loss, simple structure.
Brief description of the drawings
Fig. 1 is that actuator does fundamental diagram when stretching out motion；
Fig. 2 is fundamental diagram when actuator does retraction movement；
Fig. 3 is the fundamental diagram that actuator is in bypass state.
Wherein, 1 is one-way hydraulic pump, and 2 is accumulator, 3 be magnetic valve A, 4 be magnetic valve B,
5 is pressurized strut
Specific embodiment
The present invention is described in further detail below.Referring to Fig. 1~Fig. 3, one kind is based on unidirectional
The actuator of hydraulic pump, including following components：One-way hydraulic pump [1], accumulator [2], electricity
Magnet valve A [3] and magnetic valve B [4] and pressurized strut [5].The oil discharge outlet of one-way hydraulic pump [1] and oil suction
Mouthful be connected with magnetic valve A [3] and with the oil-feed and oil return of magnetic valve B [4], accumulator [2] with it is unidirectional
The inlet port of hydraulic pump [1] is connected, and control chamber is stretched out in control chamber and the pressurized strut [5] of magnetic valve A [3]
It is connected, the control chamber of magnetic valve A [4] is connected with pressurized strut [5] retraction control chamber, realizes actuator
Motion control.
Operation principle of the invention is：
During normal work, magnetic valve A is connected, and magnetic valve B disconnects, and chamber and list are stretched out in pressurized strut
It is connected to the oil discharge outlet (high pressure) of hydraulic pump, the retraction chamber of pressurized strut and the oil suction of one-way hydraulic pump
Mouth (low pressure) is connected, and actuator is moved to direction is stretched out, as shown in Figure 1.
Magnetic valve A disconnections, magnetic valve B connections, the retraction chamber of pressurized strut and the row of one-way hydraulic pump
Hydraulic fluid port (high pressure) is connected, inlet port (low pressure) phase for stretching out chamber and one-way hydraulic pump of pressurized strut
Even, actuator is moved to retracted orientation, as shown in Figure 2.
Magnetic valve A disconnections, magnetic valve B disconnections, the retraction chamber of pressurized strut and the row of one-way hydraulic pump
Hydraulic fluid port (high pressure) is connected, inlet port (low pressure) phase for stretching out chamber and one-way hydraulic pump of pressurized strut
Even, actuator will be in bypass state, as shown in Figure 3.
One embodiment of the present of invention, using piezoelectric pump as driving power source, piezoelectric pump it is maximum defeated
Outflow is 2L/min, and maximum output pressure is 5MPa, and actuator is realized using two magnetic valves
Motion commutation, actuator performance meets requirement.
Claims (1)
1. a kind of actuator based on one-way hydraulic pump, it includes one-way hydraulic pump [1], accumulator
[2], magnetic valve A [3] and magnetic valve B [4] and pressurized strut [5], the oil discharge outlet of one-way hydraulic pump [1]
It is connected with inlet port with the oil-feed and oil return of magnetic valve A [3] and magnetic valve B [4], accumulator [2]
Inlet port with one-way hydraulic pump [1] is connected, the control chamber of magnetic valve A [3] and magnetic valve B [4]
It is connected with pressurized strut control chamber [5] respectively, realizes that pressurized strut [5] motion drives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881129.2A CN106837916A (en) | 2015-12-03 | 2015-12-03 | A kind of actuator based on one-way hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510881129.2A CN106837916A (en) | 2015-12-03 | 2015-12-03 | A kind of actuator based on one-way hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106837916A true CN106837916A (en) | 2017-06-13 |
Family
ID=59149504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510881129.2A Pending CN106837916A (en) | 2015-12-03 | 2015-12-03 | A kind of actuator based on one-way hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106837916A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431397Y (en) * | 2000-06-22 | 2001-05-23 | 石油勘探开发科学研究院钻井工艺研究所 | Hydraulic combined valve |
| JP2004333142A (en) * | 2003-04-30 | 2004-11-25 | Shimadzu Corp | Impact tester |
| WO2009109281A1 (en) * | 2008-03-05 | 2009-09-11 | Robert Bosch Gmbh | Hydraulic power steering |
| CN101806317A (en) * | 2010-02-23 | 2010-08-18 | 华东理工大学 | Synergic control method and performer device for intelligent pump valve of biped robot |
| CN202284534U (en) * | 2011-09-26 | 2012-06-27 | 中国航空工业第六一八研究所 | Oil path structure of electro-hydrostatic actuator motor and oil pump integrated shell |
| CN202500840U (en) * | 2012-03-27 | 2012-10-24 | 九江东升科技开发有限公司 | Electrohydraulic actuating mechanism with servo proportioning valve |
-
2015
- 2015-12-03 CN CN201510881129.2A patent/CN106837916A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2431397Y (en) * | 2000-06-22 | 2001-05-23 | 石油勘探开发科学研究院钻井工艺研究所 | Hydraulic combined valve |
| JP2004333142A (en) * | 2003-04-30 | 2004-11-25 | Shimadzu Corp | Impact tester |
| WO2009109281A1 (en) * | 2008-03-05 | 2009-09-11 | Robert Bosch Gmbh | Hydraulic power steering |
| CN101806317A (en) * | 2010-02-23 | 2010-08-18 | 华东理工大学 | Synergic control method and performer device for intelligent pump valve of biped robot |
| CN202284534U (en) * | 2011-09-26 | 2012-06-27 | 中国航空工业第六一八研究所 | Oil path structure of electro-hydrostatic actuator motor and oil pump integrated shell |
| CN202500840U (en) * | 2012-03-27 | 2012-10-24 | 九江东升科技开发有限公司 | Electrohydraulic actuating mechanism with servo proportioning valve |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170613 |