CN104929184A - Oil pressure system of excavator - Google Patents
Oil pressure system of excavator Download PDFInfo
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- CN104929184A CN104929184A CN201510305018.7A CN201510305018A CN104929184A CN 104929184 A CN104929184 A CN 104929184A CN 201510305018 A CN201510305018 A CN 201510305018A CN 104929184 A CN104929184 A CN 104929184A
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- oil pressure
- oil
- flow valve
- oil hydraulic
- excavator
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Abstract
The invention provides an oil pressure system of an excavator. A controller is electrically connected with pressure sensors and flow valves; a one-to-one correspondence relation of the flow valves and an oil pressure cylinders is prestored in the controller; at the same time, the controller further receives preset oil pressure values of oil pressure pumps to be set from an upper computer; the controller receives real-time oil pressure values from the pressure sensors, and calculates differences between the real-time oil pressure values and the preset oil pressure values, and adjustment values of the flow valves according to the differences and the one-to-one correspondence relation of the flow valves and the oil pressure cylinders; and the controller transmits adjustment commands to the flow valves according to the adjustment values. The oil pressure system is simple in structure, monitors the oil pressure values in the oil pressure cylinders in real time, and automatically controls the flow valves, so that the oil pressure system operates stably.
Description
Technical field
The invention belongs to oil hydraulic system field, particularly a kind of excavator oil hydraulic system.
Background technology
Acting as of hydraulic system increases active force by changing pressure.A complete hydraulic system is made up of five parts, i.e. dynamical element, executive component, control element, auxiliary element and hydraulic oil.In routine use process, the hydraulic system of excavator is oil hydraulic system, and oil hydraulic system there will be oil pressure shakiness or is difficult to regulate in real time and affect normal activity in production, or due to long use, fuel tank occurs that temperature is too high and affects the adjustment of pressure.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above and/or defect, and the advantage will illustrated at least is below provided.
In order to realize these objects of the present invention and other advantage, the invention provides a kind of excavator oil hydraulic system, it comprises:
Fuel tank, it has an import and at least one outlet, the external oil circuit of each described outlet, each described oil circuit is disposed with oil pressure pump and oil hydraulic cylinder, a flow valve is also provided with between described oil pressure pump and described oil hydraulic cylinder, the flow of oil in oil circuit can be regulated at any time, thus regulate the oil pressure in oil hydraulic cylinder;
Pressure sensor, itself and described oil pressure pump one_to_one corresponding, and for detecting the actual hydraulic data in described oil pressure pump, and described actual hydraulic data is sent to controller;
Described controller, it is electrically connected with described pressure sensor and described flow valve, and in described controller, be previously stored with the one-to-one relationship of described flow valve and described oil hydraulic cylinder, simultaneously, described controller also accepts host computer and sends the predetermined oil pressure value waiting to set oil pressure pump, described controller receives the actual hydraulic data that described pressure sensor is sent, and the difference calculated between described actual hydraulic data and described predetermined oil pressure value, and according to described difference, and the one-to-one relationship of described flow valve and described oil hydraulic cylinder calculates the regulated value of described flow valve, described controller sends regulating command according to described regulated value to described flow valve.
Preferably, in described excavator oil hydraulic system, described pressure sensor detects continuously or interval 3s-5s detects the actual hydraulic data of described oil pressure pump, can carry out Real-Time Monitoring to actual hydraulic data.
Preferably, in described excavator oil hydraulic system, a two ends also flow valve for subsequent use in parallel of each described flow valve, affects the operation of whole system when can prevent flow valve from damaging.
Preferably, in described excavator oil hydraulic system, the lateral wall of described fuel tank goes back spiral winding and has heat dissipation pipe, and described heat dissipation pipe comprises a water inlet and a delivery port, described water inlet is lower than described delivery port, and described water inlet is connected by a heat-exchanger rig at described fuel tank with described delivery port, temperature adjustment can be carried out to fuel tank outward, and then ensure that the accuracy that oil pressure regulates.
Preferably, in described excavator oil hydraulic system,
Described fuel tank lateral wall is also provided with the pockets for holding described heat-exchanger rig;
Described heat-exchanger rig comprises the cold water supply case that the Recovery of the hot water case that is communicated with described delivery port is communicated with described water inlet and the cooling water pipe be connected between described Recovery of the hot water case and described cold water supply case.
Preferably, in described excavator oil hydraulic system, described heat dissipation pipe is arranged at intervals with extension diameter section and undergauge section, can area of dissipation be increased.
Preferably, in described excavator oil hydraulic system, described heat dissipation pipe surface is also provided with multiple spherical protuberances increases area of dissipation.
Preferably, in described excavator oil hydraulic system, the below of described fuel tank is also provided with multiple parallel radiating fin, each described radiating fin also offers multiple thermal vias, adds a lot of heat dissipation channel.
The invention provides a kind of excavator oil hydraulic system, it comprises: fuel tank, and it has an import and at least one outlet, the external oil circuit of each described outlet, each described oil circuit is disposed with oil pressure pump and oil hydraulic cylinder, between described oil pressure pump and described oil hydraulic cylinder, is also provided with a flow valve, pressure sensor, itself and described oil pressure pump one_to_one corresponding, and for detecting the actual hydraulic data in described oil pressure pump, and described actual hydraulic data is sent to controller, described controller, it is electrically connected with described pressure sensor and described flow valve, and in described controller, be previously stored with the one-to-one relationship of described flow valve and described oil hydraulic cylinder, simultaneously, described controller also accepts host computer and sends the predetermined oil pressure value waiting to set oil pressure pump, described controller receives the actual hydraulic data that described pressure sensor is sent, and the difference calculated between described actual hydraulic data and described predetermined oil pressure value, and according to described difference, and the one-to-one relationship of described flow valve and described oil hydraulic cylinder calculates the regulated value of described flow valve, described controller sends regulating command according to described regulated value to described flow valve.Oil hydraulic system structure of the present invention is simple, and the oil pressure value in real-time monitors oil cylinder pressure, and flow valve is controlled automatically, make oil hydraulic system smooth operation.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, can implement according to this with reference to manual word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
Embodiment one
The invention provides a kind of excavator oil hydraulic system, it comprises:
Fuel tank, it has an import and at least one outlet, the external oil circuit of each described outlet, each described oil circuit is disposed with oil pressure pump and oil hydraulic cylinder, a flow valve is also provided with between described oil pressure pump and described oil hydraulic cylinder, the flow of oil in oil circuit can be regulated at any time, thus regulate the oil pressure in oil hydraulic cylinder;
Pressure sensor, itself and described oil pressure pump one_to_one corresponding, and for detecting the actual hydraulic data in described oil pressure pump, and described actual hydraulic data is sent to controller;
Described controller, it is electrically connected with described pressure sensor and described flow valve, and in described controller, be previously stored with the one-to-one relationship of described flow valve and described oil hydraulic cylinder, simultaneously, described controller also accepts host computer and sends the predetermined oil pressure value waiting to set oil pressure pump, described controller receives the actual hydraulic data that described pressure sensor is sent, and the difference calculated between described actual hydraulic data and described predetermined oil pressure value, and according to described difference, and the one-to-one relationship of described flow valve and described oil hydraulic cylinder calculates the regulated value of described flow valve, described controller sends regulating command according to described regulated value to described flow valve.
In described excavator oil hydraulic system, described pressure sensor interval 3s-5s detects the actual hydraulic data of described oil pressure pump, can carry out Real-Time Monitoring to actual hydraulic data.
In described excavator oil hydraulic system, a two ends also flow valve for subsequent use in parallel of each described flow valve, affects the operation of whole system when can prevent flow valve from damaging.
In described excavator oil hydraulic system, the lateral wall of described fuel tank goes back spiral winding and has heat dissipation pipe, and described heat dissipation pipe comprises a water inlet and a delivery port, described water inlet is lower than described delivery port, and described water inlet is connected by a heat-exchanger rig at described fuel tank with described delivery port, temperature adjustment can be carried out to fuel tank outward.
In described excavator oil hydraulic system,
Described fuel tank lateral wall is also provided with the pockets for holding described heat-exchanger rig;
Described heat-exchanger rig comprises the cold water supply case that the Recovery of the hot water case that is communicated with described delivery port is communicated with described water inlet and the cooling water pipe be connected between described Recovery of the hot water case and described cold water supply case.
In described excavator oil hydraulic system, described heat dissipation pipe is arranged at intervals with extension diameter section and undergauge section.
In described excavator oil hydraulic system, described heat dissipation pipe surface is also provided with multiple spherical protuberances.
In described excavator oil hydraulic system, the below of described fuel tank is also provided with multiple parallel radiating fin, and each described radiating fin also offers multiple thermal vias.
Embodiment two
The invention provides a kind of excavator oil hydraulic system, it comprises:
Fuel tank, it has an import and at least one outlet, the external oil circuit of each described outlet, each described oil circuit is disposed with oil pressure pump and oil hydraulic cylinder, a flow valve is also provided with between described oil pressure pump and described oil hydraulic cylinder, the flow of oil in oil circuit can be regulated at any time, thus regulate the oil pressure in oil hydraulic cylinder;
Pressure sensor, itself and described oil pressure pump one_to_one corresponding, and for detecting the actual hydraulic data in described oil pressure pump, and described actual hydraulic data is sent to controller;
Described controller, it is electrically connected with described pressure sensor and described flow valve, and in described controller, be previously stored with the one-to-one relationship of described flow valve and described oil hydraulic cylinder, simultaneously, described controller also accepts host computer and sends the predetermined oil pressure value waiting to set oil pressure pump, described controller receives the actual hydraulic data that described pressure sensor is sent, and the difference calculated between described actual hydraulic data and described predetermined oil pressure value, and according to described difference, and the one-to-one relationship of described flow valve and described oil hydraulic cylinder calculates the regulated value of described flow valve, described controller sends regulating command according to described regulated value to described flow valve.
In described excavator oil hydraulic system, described pressure sensor detects the actual hydraulic data of described oil pressure pump continuously, can carry out Real-Time Monitoring to actual hydraulic data.
In described excavator oil hydraulic system, a two ends also flow valve for subsequent use in parallel of each described flow valve, affects the operation of whole system when can prevent flow valve from damaging.
In described excavator oil hydraulic system, the lateral wall of described fuel tank goes back spiral winding and has heat dissipation pipe, and described heat dissipation pipe comprises a water inlet and a delivery port, described water inlet is lower than described delivery port, and described water inlet is connected by a heat-exchanger rig at described fuel tank with described delivery port, temperature adjustment can be carried out to fuel tank outward.
In described excavator oil hydraulic system,
Described fuel tank lateral wall is also provided with the pockets for holding described heat-exchanger rig;
Described heat-exchanger rig comprises the cold water supply case that the Recovery of the hot water case that is communicated with described delivery port is communicated with described water inlet and the cooling water pipe be connected between described Recovery of the hot water case and described cold water supply case.
In described excavator oil hydraulic system, described heat dissipation pipe is arranged at intervals with extension diameter section and undergauge section.
In described excavator oil hydraulic system, described heat dissipation pipe surface is also provided with multiple spherical protuberances.
In described excavator oil hydraulic system, the below of described fuel tank is also provided with multiple parallel radiating fin, and each described radiating fin also offers multiple thermal vias.
The invention provides a kind of excavator oil hydraulic system, it comprises: fuel tank, and it has an import and at least one outlet, the external oil circuit of each described outlet, each described oil circuit is disposed with oil pressure pump and oil hydraulic cylinder, between described oil pressure pump and described oil hydraulic cylinder, is also provided with a flow valve, pressure sensor, itself and described oil pressure pump one_to_one corresponding, and for detecting the actual hydraulic data in described oil pressure pump, and described actual hydraulic data is sent to controller, described controller, it is electrically connected with described pressure sensor and described flow valve, and in described controller, be previously stored with the one-to-one relationship of described flow valve and described oil hydraulic cylinder, simultaneously, described controller also accepts host computer and sends the predetermined oil pressure value waiting to set oil pressure pump, described controller receives the actual hydraulic data that described pressure sensor is sent, and the difference calculated between described actual hydraulic data and described predetermined oil pressure value, and according to described difference, and the one-to-one relationship of described flow valve and described oil hydraulic cylinder calculates the regulated value of described flow valve, described controller sends regulating command according to described regulated value to described flow valve.Oil hydraulic system structure of the present invention is simple, and the oil pressure value in real-time monitors oil cylinder pressure, and flow valve is controlled automatically, make oil hydraulic system smooth operation.Here the number of devices illustrated and treatment scale are used to simplify explanation of the present invention.Application of the present invention, modifications and variations be will be readily apparent to persons skilled in the art.
Although embodiment of the present invention are open as above, it is not restricted to listed in manual and embodiment utilization.It can be applied to various applicable the field of the invention completely.For those skilled in the art, can easily realize other amendment.Therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details.
Claims (8)
1. an excavator oil hydraulic system, is characterized in that, comprising:
Fuel tank, it has an import and at least one outlet, and the external oil circuit of each described outlet, each described oil circuit is disposed with oil pressure pump and oil hydraulic cylinder, is also provided with a flow valve between described oil pressure pump and described oil hydraulic cylinder;
Pressure sensor, itself and described oil pressure pump one_to_one corresponding, and for detecting the actual hydraulic data in described oil pressure pump, and described actual hydraulic data is sent to controller;
Described controller, it is electrically connected with described pressure sensor and described flow valve, and in described controller, be previously stored with the one-to-one relationship of described flow valve and described oil hydraulic cylinder, simultaneously, described controller also accepts host computer and sends the predetermined oil pressure value waiting to set oil pressure pump, described controller receives the actual hydraulic data that described pressure sensor is sent, and the difference calculated between described actual hydraulic data and described predetermined oil pressure value, and according to described difference, and the one-to-one relationship of described flow valve and described oil hydraulic cylinder calculates the regulated value of described flow valve, described controller sends regulating command according to described regulated value to described flow valve.
2. excavator oil hydraulic system as claimed in claim 1, is characterized in that, described pressure sensor detects continuously or interval 3s-5s detects the actual hydraulic data of described oil pressure pump.
3. excavator oil hydraulic system as claimed in claim 1, is characterized in that, a two ends also flow valve for subsequent use in parallel of each described flow valve.
4. excavator oil hydraulic system as claimed in claim 1, it is characterized in that, the lateral wall of described fuel tank goes back spiral winding and has heat dissipation pipe, and described heat dissipation pipe comprises a water inlet and a delivery port, described water inlet is lower than described delivery port, and described water inlet is connected by a heat-exchanger rig outward at described fuel tank with described delivery port.
5. excavator oil hydraulic system as claimed in claim 4, is characterized in that,
Described fuel tank lateral wall is also provided with the pockets for holding described heat-exchanger rig;
Described heat-exchanger rig comprises the cold water supply case that the Recovery of the hot water case that is communicated with described delivery port is communicated with described water inlet and the cooling water pipe be connected between described Recovery of the hot water case and described cold water supply case.
6. excavator oil hydraulic system as claimed in claim 5, is characterized in that, described heat dissipation pipe is arranged at intervals with extension diameter section and undergauge section.
7. as the excavator oil hydraulic system that claim 5 is stated, it is characterized in that, described heat dissipation pipe surface is also provided with multiple spherical protuberances.
8. as the excavator oil hydraulic system that claim 4 is stated, it is characterized in that, the below of described fuel tank is also provided with multiple parallel radiating fin, and each described radiating fin also offers multiple thermal vias.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305018.7A CN104929184A (en) | 2015-06-07 | 2015-06-07 | Oil pressure system of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510305018.7A CN104929184A (en) | 2015-06-07 | 2015-06-07 | Oil pressure system of excavator |
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| Publication Number | Publication Date |
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| CN104929184A true CN104929184A (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510305018.7A Pending CN104929184A (en) | 2015-06-07 | 2015-06-07 | Oil pressure system of excavator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047303A (en) * | 1996-07-31 | 1998-02-17 | Toshiba Mach Co Ltd | Closed center type hydraulic circuit |
| CN201501718U (en) * | 2009-10-13 | 2010-06-09 | 浙江恒达富士电梯有限公司 | Hydraulic elevator oil temperature control device |
| CN201934087U (en) * | 2010-11-23 | 2011-08-17 | 长沙中联重工科技发展股份有限公司 | Driving control device for rotary drilling rig and rotary drilling rig |
| CN102251546A (en) * | 2011-06-14 | 2011-11-23 | 三一重机有限公司 | Control method for reducing oil consumption of excavator engine |
| CN203670013U (en) * | 2014-02-07 | 2014-06-25 | 赵国林 | Oil pressure driven engine |
| CN104379846A (en) * | 2012-05-29 | 2015-02-25 | 现代重工业株式会社 | Pressure-control-type independent flow control hydraulic system for excavator |
-
2015
- 2015-06-07 CN CN201510305018.7A patent/CN104929184A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047303A (en) * | 1996-07-31 | 1998-02-17 | Toshiba Mach Co Ltd | Closed center type hydraulic circuit |
| CN201501718U (en) * | 2009-10-13 | 2010-06-09 | 浙江恒达富士电梯有限公司 | Hydraulic elevator oil temperature control device |
| CN201934087U (en) * | 2010-11-23 | 2011-08-17 | 长沙中联重工科技发展股份有限公司 | Driving control device for rotary drilling rig and rotary drilling rig |
| CN102251546A (en) * | 2011-06-14 | 2011-11-23 | 三一重机有限公司 | Control method for reducing oil consumption of excavator engine |
| CN104379846A (en) * | 2012-05-29 | 2015-02-25 | 现代重工业株式会社 | Pressure-control-type independent flow control hydraulic system for excavator |
| CN203670013U (en) * | 2014-02-07 | 2014-06-25 | 赵国林 | Oil pressure driven engine |
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Application publication date: 20150923 |
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