CN107120319A - A kind of building machinery energy reclaiming method based on cantilever position - Google Patents
A kind of building machinery energy reclaiming method based on cantilever position Download PDFInfo
- Publication number
- CN107120319A CN107120319A CN201710298398.5A CN201710298398A CN107120319A CN 107120319 A CN107120319 A CN 107120319A CN 201710298398 A CN201710298398 A CN 201710298398A CN 107120319 A CN107120319 A CN 107120319A
- Authority
- CN
- China
- Prior art keywords
- cantilever
- valve
- pressure
- stress state
- potential energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/14—Energy-recuperation means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/857—Monitoring of fluid pressure systems
Abstract
A kind of building machinery energy reclaiming method based on cantilever position, strain gauge is provided with cantilever, control unit of the strain gauge into the control system of the building machinery sends the stress state value measured, the stress state value of predetermined value is prestored in the control system, to demarcate Light Condition and load condition；Including：Cantilever potential energy recovery valve, hydraulic system main control valve, hydraulic accumulator, pressure-reducing valve；Described control unit is received after the stress state value, compared with the predetermined value, then load condition result is judged according to comparative result, according to the operational order of operation handle, when operational order sends the signal of cantilever decline, according to the load condition judged, the signal of the whether controlled work of the pressure-reducing valve is sent.
Description
The present invention is application number：2016103164394, the applying date：2016.05.12, denomination of invention：A kind of building machinery
Energy-recuperation system and energy reclaiming method divisional application.
Technical field
The present invention relates to a kind of building machinery, more particularly to a kind of building machinery energy regenerating side based on cantilever position
Method.
Background technology
It is extensive in the prior art in order to avoid the unnecessary waste of energy because workload is very big in building machinery
Energy-recuperation system has been used, hydraulic accumulator or battery etc. is utilized.
Such as Chinese invention patent CN10230586A discloses a kind of hydraulic means for balancing torque output of combustion engine,
Hydraulic pump, accumulator etc. are protected, pressure sensor is housed on accumulator, the production of hydraulic system is caused by the switching of check valve
Raw pilot pressure signal.
And for example the PCT international applications of German application enter National Phase in China, and the Chinese invention that mandate has been obtained at present is special
Sharp CN102812218B, it discloses a kind of hydraulic fan drive, is connected with pressure pipeline using hydraulic accumulator, is used for
Scattered drive device, is widely used in the fields such as building machinery, agricultural machinery and forest machines.
But above-mentioned technology is not directed to the energy time that building machinery makes a distinction under high load condition and Light Condition
Debit's formula.
Because in operation, hydraulic system is worked using high drive apparatus for work, due to cantilever, dipper, scraper bowl and work
Weight when making is all very big, when discharging service weight, has substantial amounts of overflow energy to need recovery in hydraulic system.Existing system
In usually using reversal valve control hydraulic system in pressure increase or reduction.But in operation process, cantilever is from the state of holding high
When putting down, because weight is very big, pressure when pressure now in hydraulic system and idle running is visibly different, it is therefore desirable to right
The working condition when idling conditions and load condition after service weight is discharged makes a distinction.
The content of the invention
Based on this, the technical problem to be solved of the present invention is：A kind of energy regenerating side of building machinery is provided
Method.
The present invention provides a kind of energy-recuperation system of building machinery, and strain gauge is provided with cantilever, described to answer
Control unit of the force snesor into the control system of the building machinery sends the stress state value measured, the control system
The stress state value of predetermined value is prestored in system, to demarcate Light Condition and load condition；Characterized in that, the energy
Recovery system includes：Cantilever potential energy recovery valve, first port and the hydraulic system main control valve of the cantilever potential energy recovery valve are connected
Logical, the second port of the cantilever potential energy recovery valve and the entrance of hydraulic accumulator are connected, the cantilever potential energy recovery valve
3rd port is connected with the oil cylinder of the cantilever without rod pressure chamber；The cantilever potential energy recovery valve and the hydraulic accumulator
Pressure-reducing valve, the rodless cavity UNICOM of the pressure-reducing valve and the cantilever tank are provided with the hydraulic circuit being connected；The control is single
Member is received after the stress state value, is compared with the predetermined value, then judges load condition result according to comparative result,
According to the operational order of operation handle, when operational order sends the signal of cantilever decline, according to the load condition judged, hair
Go out the signal of the whether controlled work of the pressure-reducing valve；The energy reclaiming method of the building machinery comprises the following steps：
When the stress state value that the strain gauge of the cantilever is measured is more than or equal to predetermined value, the control list
Member judges that cantilever is in load condition, according to the operational order of the operation handle, when sending the signal that the cantilever declines,
According to the load condition judged, control signal is sent to the cantilever potential energy recovery valve so that the controlled work of pressure-reducing valve；
When the stress state value that the strain gauge of the cantilever is measured is less than predetermined value, described control unit judges the cantilever
In Light Condition, according to the operational order of the operation handle, when sending the signal that the cantilever declines, according to having judged
Light Condition, send control signal to the cantilever potential energy recovery valve so that the pressure-reducing valve does not work.
Beneficial effects of the present invention are：
1. the cantilever position that will can be distinguished under load and Light Condition, so that the hydraulic oil of different pressures is stored in into storage
In energy device.
2. it can avoid, when the stress state value that single sensor is exported is in and is equal to predetermined value, determining whether load
The difficulty of state, also reduces the possibility of erroneous judgement.
Brief description of the drawings
Fig. 1 is the structural representation of energy-recuperation system
Fig. 2 is the structural representation of the cantilever potential energy recovery valve shown in Fig. 1.
Embodiment
The present invention is further described with reference to specific embodiment, but does not limit the invention to these tools
Body embodiment.One skilled in the art would recognize that present invention encompasses potentially included in Claims scope
All alternatives, improvement project and equivalents.
Embodiment 1
Strain gauge is set on cantilever 10, the stress state measured is sent to control unit in real time at work,
The stress state value of predetermined value is prestored in the control system of building machinery, to demarcate Light Condition and load condition, control
Unit processed is compared after receiving the stress state value of measurement with the predetermined value of storage, then according to multilevel iudge load condition,
According to the operational order of operation handle, when operational order sends the signal of cantilever decline, according to the load condition judged, hair
Go out the signal of the whether controlled work of pressure-reducing valve 59.
The first port of cantilever potential energy recovery valve 52 is connected with hydraulic system main control valve 50, and cantilever potential energy recovery valve 52 makes
With solenoid directional control valve or pilot operated directional control valve, the second port and the entrance of hydraulic accumulator 60 of cantilever potential energy recovery valve 52 are connected
It is logical, the 3rd port of cantilever potential energy recovery valve 52 and being connected without rod pressure chamber for the oil cylinder 55 of cantilever 10.
Pressure-reducing valve 59, pressure-reducing valve 59 are provided with the hydraulic circuit that cantilever potential energy recovery valve 52 is connected with hydraulic accumulator 60
With the rodless cavity UNICOM of cantilever tank 55, when cantilever stress sensor (not shown) measure stress be more than or equal to predetermined value
When (such as Light Condition threshold value), control unit judges that cantilever is in load condition, according to the operational order of operation handle, works as operation
When instruction sends the signal of cantilever decline, according to the load condition judged, control signal 56 is sent to cantilever potential energy recovery valve
52 so that the controlled work of pressure-reducing valve 59, pressure-reducing valve produces pressure compensation effect so that pass through pressure-reducing valve 59 to hydraulic accumulator 60
Flow of pressurized keep relative stability, so as to keep relatively high pressure in the oil cylinder 55 of cantilever 10.
When the stress that cantilever stress sensor (not shown) is measured is less than predetermined value (such as Light Condition threshold value), control
Unit judges cantilever is in Light Condition, according to the operational order of operation handle, when operational order sends the signal of cantilever decline
When, according to the Light Condition judged, control signal 56 is sent to cantilever potential energy recovery valve 52 so that pressure-reducing valve 59 does not work,
So that the oil cylinder 55 of cantilever 10 keeps less pressure.
Hydraulic accumulator 60 is connected with Energy release control valve 53, controlled unit control, and hydraulic pressure is discharged when needed
Energy feed flow press pump 62 in accumulator 60 is used.
Thus, above-mentioned technical proposal can will distinguish the cantilever position under load and Light Condition, so that by different pressures
Hydraulic oil be stored in accumulator.
Embodiment 2
Further, at least two strain gauges are set at position neighbouring on cantilever 10, wherein described at least two
The predetermined distance in one, the direction interval along cantilever Longitudinal extending of individual strain gauge.
At work, at least two strain gauge sends the stress state measured to control unit in real time, builds
The stress state value of predetermined value is prestored in the control system for building machinery, to demarcate Light Condition and different load shapes
State, control unit is compared after receiving the stress state value of measurement with the predetermined value of storage, is then loaded according to multilevel iudge
State, according to the operational order of operation handle, when operational order sends the signal of cantilever decline, according to the load shape judged
State, sends the signal of the whether controlled work of pressure-reducing valve 59.
It is different that the predetermined value wherein stored in the controls, which corresponds at least two strain gauge,.Tool
For body, the first predetermined value that first strain gauge is stored in the controls is more than second strain gauge
The second predetermined value stored in the controls.When control unit judges that the stress state value of the first strain gauge is big simultaneously
In or equal to the first predetermined value, while the stress state value of the second strain gauge is more than or equal to the second predetermined value
When, it is judged as load condition.
In this way, can avoid, when the stress state value that single sensor is exported is in and is equal to predetermined value, determining whether
The difficulty of load condition, also reduces the possibility of erroneous judgement.
Above-mentioned specific embodiment is simply schematically illustrated to present invention, and the limitation to present invention is not represented.
It may occur to persons skilled in the art that, concrete structure can have many versions in the present invention, but it uses technology
The technical characteristics of scheme and the present invention are same or similar, all should be covered by the scope of the present invention.
Claims (1)
1. a kind of building machinery energy reclaiming method based on cantilever position, for the energy-recuperation system of building machinery, outstanding
Strain gauge is provided with arm, control unit of the strain gauge into the control system of the building machinery, which is sent, to be surveyed
The stress state value of predetermined value is prestored in the stress state value measured, the control system, with demarcate Light Condition and
Load condition；Characterized in that, the energy-recuperation system includes：
Cantilever potential energy recovery valve, first port and the hydraulic system main control valve of the cantilever potential energy recovery valve are connected, described outstanding
The second port of arm potential energy recovery valve and the entrance of hydraulic accumulator are connected, the 3rd port of the cantilever potential energy recovery valve with
The oil cylinder of the cantilever is connected without rod pressure chamber；
Pressure-reducing valve, the pressure-reducing valve are provided with the hydraulic circuit that the cantilever potential energy recovery valve is connected with the hydraulic accumulator
With the rodless cavity UNICOM of the cantilever tank；
Described control unit is received after the stress state value, is compared with the predetermined value, is then sentenced according to comparative result
Disconnected load condition result, according to the operational order of operation handle, when operational order sends the signal of cantilever decline, according to having sentenced
Disconnected load condition, sends the signal of the whether controlled work of the pressure-reducing valve；
The energy reclaiming method includes：
When the stress state value that the strain gauge of the cantilever is measured is more than or equal to predetermined value, described control unit is sentenced
Disconnected cantilever is in load condition, according to the operational order of the operation handle, when sending the signal that the cantilever declines, according to
The load condition judged, sends control signal to the cantilever potential energy recovery valve so that the controlled work of pressure-reducing valve；
When the stress state value that the strain gauge of the cantilever is measured is less than predetermined value, described control unit judges described
Cantilever is in Light Condition, according to the operational order of the operation handle, when sending the signal that the cantilever declines, according to
The Light Condition of judgement, sends control signal to the cantilever potential energy recovery valve so that the pressure-reducing valve does not work,
The strain gauge is at least two strain gauges, and pre- along one, the direction interval of the cantilever Longitudinal extending
Fixed distance is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298398.5A CN107120319A (en) | 2016-05-12 | 2016-05-12 | A kind of building machinery energy reclaiming method based on cantilever position |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710298398.5A CN107120319A (en) | 2016-05-12 | 2016-05-12 | A kind of building machinery energy reclaiming method based on cantilever position |
| CN201610316439.4A CN105805058B (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system of building machinery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316439.4A Division CN105805058B (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system of building machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107120319A true CN107120319A (en) | 2017-09-01 |
Family
ID=56456770
Family Applications (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710300340.XA Withdrawn CN107013508A (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system of the building machinery based on cantilever position |
| CN201710299621.8A Withdrawn CN106939908A (en) | 2016-05-12 | 2016-05-12 | Building machinery energy reclaiming method |
| CN201710298397.0A Withdrawn CN106939907A (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system for building machinery |
| CN201710298396.6A Withdrawn CN107013507A (en) | 2016-05-12 | 2016-05-12 | A kind of energy reclaiming method of building machinery |
| CN201710298398.5A Withdrawn CN107120319A (en) | 2016-05-12 | 2016-05-12 | A kind of building machinery energy reclaiming method based on cantilever position |
| CN201610316439.4A Active CN105805058B (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system of building machinery |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710300340.XA Withdrawn CN107013508A (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system of the building machinery based on cantilever position |
| CN201710299621.8A Withdrawn CN106939908A (en) | 2016-05-12 | 2016-05-12 | Building machinery energy reclaiming method |
| CN201710298397.0A Withdrawn CN106939907A (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system for building machinery |
| CN201710298396.6A Withdrawn CN107013507A (en) | 2016-05-12 | 2016-05-12 | A kind of energy reclaiming method of building machinery |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316439.4A Active CN105805058B (en) | 2016-05-12 | 2016-05-12 | A kind of energy-recuperation system of building machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (6) | CN107013508A (en) |
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2016
- 2016-05-12 CN CN201710300340.XA patent/CN107013508A/en not_active Withdrawn
- 2016-05-12 CN CN201710299621.8A patent/CN106939908A/en not_active Withdrawn
- 2016-05-12 CN CN201710298397.0A patent/CN106939907A/en not_active Withdrawn
- 2016-05-12 CN CN201710298396.6A patent/CN107013507A/en not_active Withdrawn
- 2016-05-12 CN CN201710298398.5A patent/CN107120319A/en not_active Withdrawn
- 2016-05-12 CN CN201610316439.4A patent/CN105805058B/en active Active
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| JP2007239894A (en) * | 2006-03-09 | 2007-09-20 | Kayaba Ind Co Ltd | Energy conversion system |
| CN202251264U (en) * | 2011-10-08 | 2012-05-30 | 山河智能装备股份有限公司 | Potential energy recycling device for hydraulic excavator |
| JP2013091953A (en) * | 2011-10-25 | 2013-05-16 | Nobuyuki Sugimura | Auxiliary mechanism for engine starting of construction machinery |
| CN103470544A (en) * | 2013-09-16 | 2013-12-25 | 愚公机械股份有限公司 | Energy-saving hoisting system of hydraulic crane |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106939908A (en) | 2017-07-11 |
| CN107013508A (en) | 2017-08-04 |
| CN105805058B (en) | 2017-10-10 |
| CN107013507A (en) | 2017-08-04 |
| CN106939907A (en) | 2017-07-11 |
| CN105805058A (en) | 2016-07-27 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170901 |
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