CN201884374U - Wheeled crane and hydraulic oil radiating system thereof - Google Patents
Wheeled crane and hydraulic oil radiating system thereof Download PDFInfo
- Publication number
- CN201884374U CN201884374U CN2010206558659U CN201020655865U CN201884374U CN 201884374 U CN201884374 U CN 201884374U CN 2010206558659 U CN2010206558659 U CN 2010206558659U CN 201020655865 U CN201020655865 U CN 201020655865U CN 201884374 U CN201884374 U CN 201884374U
- Authority
- CN
- China
- Prior art keywords
- hydraulic oil
- radiator
- temperature
- radiation system
- component
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a wheeled crane and a hydraulic oil radiating system thereof. The radiating system comprises a radiator, a power component, a detecting component, a control component and an actuating component, wherein the power component drives the radiator, the detecting component detects the temperature of hydraulic oil, the control component transmits a control signal according to a temperature signal, the actuating component controls the power component to work or stop, a signal receiving end of the control component is connected with a signal transmitting end of the detecting component, and a signal receiving end of the actuating component is connected with a signal transmitting end of the control component. By the aid of cooperation of the detecting component, the control component and the actuating component, the radiator can be automatically started or stopped, so that the temperature of the hydraulic oil always keeps in a preset temperature range, possibility of over high temperature is reduced, the service lives of hydraulic elements of the system are prolonged, and the best radiating effect of the radiating system is realized. Simultaneously, work of operators can be reduced by means of automatically controlling start or stop of the radiator, and dependence on manual operation in terms of safety of the system is reduced, and safety and reliability of the system are improved.
Description
Technical field
The utility model relates to engineering machinery heat radiation field, particularly relates to a kind of hydraulic oil radiation system that is used for wheeled crane.In addition, the utility model also relates to a kind of wheeled crane that comprises above-mentioned hydraulic oil radiation system.
Background technique
The hydraulic oil radiation system is one of chief component of crane hydraulic system, its role is to give the high hydraulic oil of temperature to lower the temperature, thereby make the temperature of hydraulic oil be in the optimum state, thereby improve the working efficiency of hydraulic system, guarantee the hoist proper functioning.
Conventional hydraulic oil radiation system mainly is made up of radiator, and the unlatching of radiator has two kinds of automatically controlled and oily controls, and difference is to provide the motor of driving force to be respectively electric notor and oil motor.The work of traditional heat-dissipating device all is manually by control knob control, during the complete machine operation, the work that operator can directly control radiator by button with stop.
Because the demand speed of each executive component of hoist is different, cause hydraulic system to have throttling and spill losses inevitably, thereby make wheeled crane in the frequent operation process, can produce a lot of heats, the too high meeting of the temperature of hydraulic oil causes hoist variety of issue to occur, for example hydraulic element can leakage of oil, seal element can accelerated ageing, the pump/motor volumetric efficiency can reduce etc., and serious caused complete machine can not be worked.
At present, the control of the hydraulic oil radiation system of domestic wheeled crane all is the control of simple switch, the enabling and stop to be controlled by operator of hydraulic oil radiation system.Though manual control hydraulic oil radiation system can solve the too high problem of oil temperature within the specific limits, can not at utmost bring into play the function of hydraulic oil radiation system, and also there are a lot of problems in current hydraulic oil radiation system:
1) radiator is by manual control, when operator forget the switch of opening radiation system, the temperature of hydraulic oil can raise along with the work of executive component, when the temperature superelevation, can have a strong impact on causing the working life of system's hydraulic element, directly make engine misses when serious, make the hoist cisco unity malfunction;
2) owing to the radiator manual control, operator can only can not realize the best heat sinking function of radiation system with feeling to open radiator;
3) the existing system oil return all needs through radiator, and radiator will provide a bigger back pressure to system, and some element can not in time normally be played a role, and reduces the reliability of system.For example the oil return of hoist brake need be passed through hydraulic oil radiator, the existence of radiator just provides a back pressure to break, back pressure is crossed conference and is caused break braking not exclusively, thereby can occur continuing the phenomenon of slip when causing the hoisting system lift heavy to stop.
Therefore, how making the hydraulic oil heat radiation effectively, improve the working efficiency of the hydraulic system of wheeled crane, improve the safety reliability of radiation system, is the present technical issues that need to address of those skilled in the art.
The model utility content
The purpose of this utility model provides a kind of hydraulic oil radiation system that is used for wheeled crane, and this radiation system can effectively improve the safety reliability of hydraulic oil heat radiation, prolongs the working life of hydraulic system element, improves the heat sinking function of radiation system.Another purpose of the present utility model provides a kind of wheeled crane that comprises above-mentioned hydraulic oil radiation system.
For realizing above-mentioned model utility purpose, the utility model provides a kind of wheeled crane hydraulic oil radiation system, the power unit that comprises radiator, the described radiator of driving, also comprise the detection part that detects hydraulic fluid temperature, send the controlling component of control signal according to temperature signal, and the power unit of controlling described power unit work or stopping; The signal that the signal receiving end of described controlling component connects described detection part sends end, and the signal that the signal receiving end of described power unit connects described controlling component sends end.
Preferably, also comprise the bypass valve in parallel with described radiator, the hydraulic oil outlet of described radiator and the hydraulic oil outlet of described bypass valve all are communicated with fuel tank; Described controlling component is controlled the main road at described radiator place and the branch road circulation at described bypass valve place, and another person closes.
Preferably, comprise also and the hoist brake of described radiator tandem that when described hoist brake was not worked, described controlling component was controlled described branch road circulation, described main road is closed.
Preferably, described bypass valve specifically comprises two-position three way magnetic valve and the cartridge valve of connecting with described two-position three way magnetic valve.
Preferably, described power unit is specially oily horse-controlling and reaches, and described power unit is specially the solenoid valve that the described oily horse-controlling of control reaches.
Preferably, described solenoid valve is specially two-position two-way solenoid valve.
Preferably, described detection part is specially temperature transducer.
Preferably, also comprise kinetic pump and the relief valve in parallel with described kinetic pump.
The utility model also provides a kind of wheeled crane, comprises as above-mentioned each described hydraulic oil radiation system.
The hydraulic oil radiation system that provides of the present utility model is used for the hydraulic system heat radiation of wheeled crane.This hydraulic oil radiation system comprises radiator and drives the power unit of radiator, unlike the prior art be, also comprise the detection part that detects hydraulic fluid temperature in the hydraulic oil radiation system provided by the utility model, send the controlling component of control signal according to temperature signal, and the power unit of controlling described power unit work or stopping; The signal that the signal receiving end of described controlling component connects described detection part sends end, and the signal that the signal receiving end of described power unit connects described controlling component sends end.During hydraulic work system, detection part can detect the temperature of hydraulic oil at any time, and temperature signal is flowed to controlling component, and controlling component is controlled power unit work according to control strategy or stopped.When the temperature of hydraulic oil is higher than preset temperature, the work of control power unit, then radiator work is dispelled the heat to hydraulic oil, and hydraulic fluid temperature is reduced; When the temperature of hydraulic oil was lower than preset temperature, the control power unit stopped, and radiator is not worked, and the temperature of hydraulic oil no longer reduces.Cooperating by detection part, controlling component and power unit, can start or stop radiator automatically, realize automatically hydraulic system being dispelled the heat, hydraulic oil is remained in the default temperature range, reduce the possibility of temperature superelevation, prolong the working life of system's hydraulic element simultaneously, the best heat sinking function of performance radiation system.
Simultaneously, control radiator automatically and start or stop the work that can reduce operator, and reduce security of system, improve the safety reliability of system for manually-operated dependence.
A kind of preferred embodiment in, hydraulic oil radiation system provided by the utility model also comprises the bypass valve in parallel with described radiator, the hydraulic oil of outlet of the hydraulic oil of described radiator and described bypass valve exports and all is communicated with described fuel tank; Described controlling component is controlled the main road at described radiator place and the branch road circulation at described bypass valve place, and another person closes.When hydraulic fluid temperature is higher than described preset temperature, control the main road circulation at described radiator place, the branch road at described bypass valve place is closed; When hydraulic fluid temperature is lower than described preset temperature, control described branch road circulation, described main road is closed.Be the temperature of hydraulic oil when being higher than preset temperature, hydraulic oil passes through from radiator, and radiator carries out radiating and cooling to hydraulic oil; When the temperature of hydraulic oil is lower than preset temperature, when not needing that hydraulic oil carried out radiating and cooling, hydraulic oil is got back to fuel tank from bypass valve.Bypass valve can be effectively oil return fast, effectively reduce the back pressure that hydraulic oil forms in system, help each hydraulic element and normally play a role, improve the working efficiency and the reliability of hydraulic system.
In another preferred embodiment, hydraulic oil radiation system provided by the utility model also comprises the hoist brake with described radiator tandem, when described hoist brake is not worked, control described branch road circulation, described main road is closed, be that hydraulic oil is through the bypass valve oil return, without radiator.Like this, the efficient oil return of bypass valve can effectively reduce the back pressure of hoist brake, realizes the braking fully of hoist brake, continues the phenomenon of downslide when effectively avoiding the elevator braking, improves the reliability of system.
On the basis that above-mentioned hydraulic oil radiation system is provided, the utility model also provides a kind of wheeled crane that comprises above-mentioned hydraulic oil radiation system; Because the hydraulic oil radiation system has above-mentioned technique effect, the wheeled crane with this hydraulic oil radiation system also has the corresponding techniques effect.
Description of drawings
Fig. 1 provides the schematic diagram of a kind of embodiment of wheeled crane hydraulic oil radiation system for the utility model;
Fig. 2 is in the fundamental diagram of closed condition for a kind of embodiment of bypass valve that the utility model provides;
Fig. 3 is in the fundamental diagram of opening state for bypass valve shown in Figure 2;
Fig. 4 provides the control flow chart of first kind of embodiment of hydraulic oil radiation system for the utility model;
Fig. 5 provides the control flow chart of second kind of embodiment of hydraulic oil radiation system for the utility model.
Embodiment
Core of the present utility model provides a kind of hydraulic oil radiation system that is used for wheeled crane, and this radiation system can effectively improve the safety reliability of hydraulic oil heat radiation, prolongs the working life of hydraulic system element, improves the heat sinking function of radiation system.Another core of the present utility model provides a kind of wheeled crane that comprises above-mentioned hydraulic oil radiation system.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 provides the schematic diagram of a kind of embodiment of wheeled crane hydraulic oil radiation system for the utility model.
The hydraulic oil radiation system that provides of the present utility model is used for the hydraulic system heat radiation of wheeled crane.This hydraulic oil radiation system comprises radiator 1 and drives the power unit of radiator 1, unlike the prior art be, also comprise the detection part 2 that detects hydraulic fluid temperature in the hydraulic oil radiation system provided by the utility model, send the controlling component of control signal according to temperature signal, and control power unit work or the power unit that stops; The signal of the signal receiving end joint detection parts of controlling component sends end, and the signal of the signal receiving end connection control unit of power unit sends end.During hydraulic work system, detection part 2 can detect the temperature of hydraulic oil at any time, and temperature signal is flowed to controlling component, and controlling component forms control signal according to control strategy, control power unit work or stop.
When the temperature t 1 of hydraulic oil is higher than preset temperature t2, the work of control power unit, then radiator 1 work is dispelled the heat to hydraulic oil, and hydraulic fluid temperature is reduced; When the temperature of hydraulic oil was lower than preset temperature t2, the control power unit stopped, and radiator 1 is not worked, and the temperature of hydraulic oil no longer reduces.Cooperating by detection part 2, controlling component and power unit, can start or stop radiator 1 automatically, realize automatically hydraulic system being dispelled the heat, hydraulic oil is remained in the default temperature range, reduce the possibility of temperature superelevation, prolong the working life of system's hydraulic element simultaneously, the best heat sinking function of performance radiation system.
Simultaneously, control radiator 1 automatically and start or stop the work that can reduce operator, and reduce security of system, improve the safety reliability of system for manually-operated dependence.
In a kind of concrete mode of execution, power unit can reach 3 for oily horse-controlling, and power unit can reach 3 solenoid valve 4 for controlling oily horse-controlling.Reach 3 with kinetic pump 5 oily horse-controllings in parallel in hydraulic system, utilize the oily horse-controlling of solenoid valve 4 control to reach 3 work again or stop, this is simple for structure, can reduce the cost of hydraulic oil radiation system.Obviously, power unit also can be an electronically controlled motor, and the break-make by control electric power also can realize electronically controlled motor work or stops, and so also can satisfy needs of the present utility model.
Particularly, above-mentioned solenoid valve 4 can be two-position two-way solenoid valve.Open or close owing to only need the oily horse-controlling of control to reach 3, therefore, two-position two-way solenoid valve just can satisfy needs of the present utility model, with the cost of further reduction hydraulic oil radiation system.
Further, above-mentioned detection part 2 can be temperature transducer.Temperature transducer can detect the temperature t 1 of hydraulic oil intuitively, satisfies requirement of the present utility model.The simultaneous temperature sensor is a kind of component commonly used, is easy to buy, and helps reducing purchase cost.Simultaneously, as shown in Figure 1, temperature transducer detects is hydraulic fluid temperature in the fuel tank, weigh the temperature levels of hydraulic oil in the whole hydraulic system by the temperature of hydraulic oil in the fuel tank, obviously, temperature transducer also can detect the temperature of other position in the hydraulic system, weighs the temperature levels of hydraulic oil in the whole hydraulic system by the hydraulic fluid temperature of other position.
In a kind of concrete mode of execution, hydraulic oil radiation system provided by the utility model also comprises the relief valve 6 in parallel with kinetic pump 5.Kinetic pump 5 is used to provide the power source of hydraulic system, and relief valve 6 is used for the pressure surge of absorption liquid pressing system, and the hydraulic oil outlet pressure of keeping kinetic pump 5 is constant, improves the stability of hydraulic system.
In further technological scheme, hydraulic oil radiation system provided by the utility model also comprises the bypass valve 7 in parallel with radiator 1, and the hydraulic oil outlet of radiator 1 and the hydraulic oil of bypass valve 7 export and all is communicated with fuel tank; When hydraulic fluid temperature is higher than preset temperature t2, the main road circulation at control radiator 1 place, the branch road at bypass valve 7 places is closed; When hydraulic fluid temperature is lower than preset temperature t2, the circulation of control branch road, main road is closed.Be the temperature t 1 of hydraulic oil when being higher than preset temperature t2, hydraulic oil passes through from radiator 1, and bypass valve 7 is not worked, solenoid valve 4 electric, oily horse-controlling reaches 3 work, 1 pair of hydraulic oil of radiator carries out radiating and cooling; When the temperature t 1 of hydraulic oil is lower than preset temperature t2, when not needing that hydraulic oil carried out radiating and cooling, hydraulic oil is got back to fuel tank from bypass valve 7, and this moment, solenoid valve 4 must not electricity, and oily horse-controlling reaches and stops, and radiator 1 is not worked.Bypass valve 7 can be effectively oil return fast, effectively reduce the back pressure that hydraulic oil forms in system, help each hydraulic element and normally play a role, improve the working efficiency and the reliability of hydraulic system.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is in the fundamental diagram of closed condition for a kind of embodiment of bypass valve that the utility model provides; Fig. 3 is in the fundamental diagram of opening state for bypass valve shown in Figure 2.
In a kind of concrete mode of execution, bypass valve 7 specifically comprises two-position three way magnetic valve 71 and the cartridge valve 72 of connecting with two-position three way magnetic valve 71.Wherein the first hydraulic fluid port A of two-position three way magnetic valve 71, the second hydraulic fluid port B and the 3rd hydraulic fluid port C are located in first, and the 4th hydraulic fluid port D, the 5th hydraulic fluid port E and the 6th hydraulic fluid port F are located in second.
When first of two-position three way magnetic valve 71 connecting, the first hydraulic fluid port A is communicated with oil sump, and the M hydraulic fluid port and the P hydraulic fluid port of the second hydraulic fluid port B and the 3rd hydraulic fluid port C conducting cartridge valve make the spool of cartridge valve 72 can not compress the spring of cartridge valve 72, can not open the N hydraulic fluid port of cartridge valve 72, this moment, bypass valve cut out.
When second of two-position three way magnetic valve 71 connecting, the 5th hydraulic fluid port E and the 6th hydraulic fluid port F are communicated with the P hydraulic fluid port of oil sump and cartridge valve 72, the oil return of hydraulic system connects the M hydraulic fluid port of the 4th interface D and cartridge valve, make the pressure of the pressure of M hydraulic fluid port much larger than the P hydraulic fluid port, promote the spool pressure spring, open the N hydraulic fluid port of cartridge valve 72, bypass valve 72 unlatchings this moment, the oil return of hydraulic system is got back to fuel tank through M hydraulic fluid port and N hydraulic fluid port successively.
The flow of cartridge valve 72 is bigger, can satisfy the oil require that adds of hydraulic system, improves the control efficiency of hydraulic system.Obviously, bypass valve 7 can be realized by other control valve, two-position four-way solenoid valve etc. for example, and still, two-position three way magnetic valve can be taken into account Economy and practicability, helps reducing the cost of hydraulic pressure radiation system.
A kind of preferred embodiment in, the hoist brake 8 in the hydraulic system of wheeled crane is connected with radiator 1, and hoist brake 8 is not when working, the circulation of control branch road, main road is closed, promptly hydraulic oil is through bypass valve 7 oil returns, without radiator 1.Like this, bypass valve 7 efficient oil returns can effectively reduce the back pressure of hoist brake 8, realize the braking fully of hoist brake 8, continue the phenomenon of downslide when effectively avoiding the elevator braking, improve the reliability of system.
Particularly, as shown in Figure 1, hoist brake 8 is connected with hand-operated direction valve 9, handle 91 displacements near switch or displacement switch detection hand-operated direction valve 9 can be set in system, when handle 91 is in meta, show that operator have stopped the operation of elevator, control the two-position two-way solenoid valve dead electricity this moment, bypass valve 7 gets electric, guarantees hydraulic oil without radiator 1, and flows back to fuel tank by bypass valve 7.
Please refer to Fig. 4, Fig. 4 provides the control flow chart of first kind of embodiment of hydraulic oil radiation system for the utility model.
In first kind of concrete mode of execution, hydraulic oil cooling control method provided by the present invention can may further comprise the steps realizes control automatically:
The temperature t 1 of S11, detection hydraulic oil;
S12, receive the temperature signal of hydraulic oil, with preset temperature t2 relatively, and send control command according to comparative result, temperature t 1 is changeed step S131 during greater than preset temperature t2, temperature t 1 is changeed step S 132 during less than preset temperature t2;
S131, reception control command, 1 work of control radiator;
S132, reception control command, control radiator 1 is not worked.
When the temperature t 1 of hydraulic oil was higher than preset temperature t2,1 work of control radiator was dispelled the heat to hydraulic oil, and hydraulic fluid temperature is reduced; When the temperature t 1 of hydraulic oil was lower than preset temperature t2, control radiator 1 was not worked, and hydraulic fluid temperature no longer reduces.By starting or stoping radiator 1 automatically, realize automatically hydraulic system being dispelled the heat, hydraulic oil is remained in the default temperature range, reduce the possibility of temperature superelevation, prolong the working life of system's hydraulic element simultaneously, the best heat sinking function of performance radiation system.Simultaneously, control radiator 1 automatically and start or stop the work that can reduce operator, and reduce security of system, improve the safety reliability of system for manually-operated dependence.
Please refer to Fig. 5, Fig. 5 provides the control flow chart of second kind of embodiment of hydraulic oil radiation system for the utility model.
In second kind of concrete mode of execution, hydraulic oil radiation system provided by the utility model can be realized automatic control according to the following steps:
Whether the handle of S21, detection hand control valve is in meta, if not, turns to step S22, if turn to step 25;
Utilization is near the handle 91 of switch or displacement switch detection hand control valve 9, if handle 91 is in meta, then elevator is in braking state, hoist brake 8 locking elevators; If handle 91 is not at meta, then elevator is in running order, and hoist brake 8 is decontroled elevator.
The temperature t 1 of S22, detection hydraulic oil;
S23, receive the temperature signal of hydraulic oil, with preset temperature t2 relatively, and send control command according to comparative result, temperature t 1 is changeed step S241 during greater than preset temperature t2, temperature t 1 is changeed step S242 during less than preset temperature t2;
S241, receive control command, control radiator 1 place main road is opened, and the branch road at bypass valve 7 places in parallel with radiator 1 closes, promptly hydraulic oil through radiator 1 without bypass valve 7, radiator 1 work, bypass valve 7 is not worked;
S242, reception control command, the main road at control radiator 1 place closes, and the branch road at bypass valve 7 places is opened, and promptly without radiator 1, do not work by radiator 1 through bypass valve 7 for hydraulic oil, bypass valve 7 work.
When elevator in running order, then wheeled crane in running order in, hydraulic oil heats up in the hydraulic system, has the risk of overtemperature.Detect the temperature t 1 of hydraulic oil by temperature transducer, and temperature signal is flowed to controlling component, t2 compares with preset temperature, when the temperature of hydraulic oil is higher than preset temperature t2,1 work of control radiator is dispelled the heat to hydraulic oil, and hydraulic fluid temperature is reduced; When the temperature t 1 of hydraulic oil was lower than preset temperature t2, control radiator 1 was not worked, and hydraulic fluid temperature no longer reduces.By starting or stoping radiator 1 automatically, realize automatically hydraulic system being dispelled the heat, hydraulic oil is remained in the default temperature range, reduce the possibility of temperature superelevation, prolong the working life of system's hydraulic element simultaneously, the best heat sinking function of performance radiation system.Simultaneously, control radiator 1 automatically and start or stop the work that can reduce operator, and reduce security of system, improve the safety reliability of system for manually-operated dependence.
S25, control main road close, and branch road is opened, and promptly control hydraulic oil process bypass valve 7 without radiator 1, and radiator 1 is not worked, bypass valve 7 work.
When elevator is in braking state, this moment, wheeled crane quit work, and the main road at control radiator 1 place is closed, and the branch road at bypass valve 7 places is opened, and hydraulic oil flows back to fuel tank through bypass valve 7.Like this, radiator 1 can not form back pressure in system, can not influence the braking effect of hoist brake 8, has improved the reliability of elevator braking.
Except above-mentioned hydraulic oil radiation system, the utility model also provides a kind of wheeled crane that comprises above-mentioned hydraulic oil radiation system, and the structure of these other each several parts of wheeled crane please refer to prior art, and this paper repeats no more.
More than wheeled crane provided by the utility model and hydraulic oil radiation system thereof are described in detail.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. wheeled crane hydraulic oil radiation system, the power unit that comprises radiator, the described radiator of driving, it is characterized in that, also comprise the detection part that detects hydraulic fluid temperature, send the controlling component of control signal according to temperature signal, and the power unit of controlling described power unit work or stopping; The signal that the signal receiving end of described controlling component connects described detection part sends end, and the signal that the signal receiving end of described power unit connects described controlling component sends end.
2. wheeled crane hydraulic oil radiation system according to claim 1 is characterized in that, also comprises the bypass valve in parallel with described radiator, and the hydraulic oil outlet of described radiator and the hydraulic oil outlet of described bypass valve all are communicated with fuel tank; Described controlling component is controlled the main road at described radiator place and the branch road circulation at described bypass valve place, and another person closes.
3. wheeled crane hydraulic oil radiation system according to claim 2 is characterized in that, comprises also and the hoist brake of described radiator tandem that when described hoist brake was not worked, described controlling component was controlled described branch road circulation, and described main road is closed.
4. wheeled crane hydraulic oil radiation system according to claim 2 is characterized in that described bypass valve specifically comprises two-position three way magnetic valve and the cartridge valve of connecting with described two-position three way magnetic valve.
5. according to each described wheeled crane hydraulic oil radiation system of claim 1 to 4, it is characterized in that described power unit is specially oily horse-controlling and reaches, described power unit is specially the solenoid valve that the described oily horse-controlling of control reaches.
6. wheeled crane hydraulic oil radiation system according to claim 5 is characterized in that described solenoid valve is specially two-position two-way solenoid valve.
7. wheeled crane hydraulic oil radiation system according to claim 5 is characterized in that described detection part is specially temperature transducer.
8. wheeled crane hydraulic oil radiation system according to claim 5 is characterized in that, also comprises kinetic pump and the relief valve in parallel with described kinetic pump.
9. a wheeled crane is characterized in that, comprises as each described hydraulic oil radiation system of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206558659U CN201884374U (en) | 2010-12-10 | 2010-12-10 | Wheeled crane and hydraulic oil radiating system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206558659U CN201884374U (en) | 2010-12-10 | 2010-12-10 | Wheeled crane and hydraulic oil radiating system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884374U true CN201884374U (en) | 2011-06-29 |
Family
ID=44181914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206558659U Expired - Lifetime CN201884374U (en) | 2010-12-10 | 2010-12-10 | Wheeled crane and hydraulic oil radiating system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884374U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011769A (en) * | 2010-12-10 | 2011-04-13 | 徐州重型机械有限公司 | Wheeled crane and hydraulic oil cooling system and control method thereof |
| CN102416940A (en) * | 2011-10-14 | 2012-04-18 | 三一重工股份有限公司 | Hydraulic control system and engineering machine |
| CN102705285A (en) * | 2012-05-21 | 2012-10-03 | 南通安捷机械有限公司 | Novel oil passage |
| CN103233927A (en) * | 2013-05-09 | 2013-08-07 | 中联重科股份有限公司 | Hydraulic control system of hydraulic tower crane and hydraulic tower crane |
-
2010
- 2010-12-10 CN CN2010206558659U patent/CN201884374U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011769A (en) * | 2010-12-10 | 2011-04-13 | 徐州重型机械有限公司 | Wheeled crane and hydraulic oil cooling system and control method thereof |
| CN102416940A (en) * | 2011-10-14 | 2012-04-18 | 三一重工股份有限公司 | Hydraulic control system and engineering machine |
| CN102705285A (en) * | 2012-05-21 | 2012-10-03 | 南通安捷机械有限公司 | Novel oil passage |
| CN102705285B (en) * | 2012-05-21 | 2015-08-05 | 南通安捷机械有限公司 | A kind of novel oilway |
| CN103233927A (en) * | 2013-05-09 | 2013-08-07 | 中联重科股份有限公司 | Hydraulic control system of hydraulic tower crane and hydraulic tower crane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102011769B (en) | Wheeled crane and hydraulic oil cooling system and control method thereof | |
| CN101734565B (en) | Crane and winch control system thereof | |
| CN201771496U (en) | Hydraulic tracting system for shearer driven by load sensitive pump | |
| CN102229328B (en) | Vehicle mechanical energy-saving hydraulic system with multi-pump confluence | |
| CN201321358Y (en) | Crane hoist control system and crane | |
| RU2603811C2 (en) | Recuperative generator system for electric loader | |
| CN201884374U (en) | Wheeled crane and hydraulic oil radiating system thereof | |
| CN101709725B (en) | Downhole anti-explosion hoisting machine hydraulic control system adopting multi-pump combination technique | |
| CN2892805Y (en) | Motor rotational speed memory hoisting braker control device | |
| CN103628512B (en) | Excavator swing arm platform revolution hydraulic control method | |
| CN200974743Y (en) | Energy-saving tower machine hydraulic stepless change control system | |
| CN106088208B (en) | Excavator turns round hydraulic control system | |
| CN102021927A (en) | Rotary oil supply loop for hydraulic excavator | |
| CN205838429U (en) | Hydraulic disc type braking deivce for winch | |
| CN102030265A (en) | Crane hydraulic system for load sensitive ship | |
| CN108408617B (en) | Hydraulic wringing mill | |
| CN112594240B (en) | Hydraulic system of working device, control method and electric loader | |
| CN200978188Y (en) | Engine negative torsional moment controlling device in enclosed hydraulic circuit crane | |
| CN109026867A (en) | The energy-saving hydraulic system of large-tonnage storage battery forktruck | |
| CN205742335U (en) | A kind of Electric Control System of Electric Shovel based on CAN | |
| CN102734353B (en) | Brake hydraulic station, brake device, lifting device and engineering machine | |
| CN108953309B (en) | Energy recovery and recycling hydraulic system | |
| CN204590151U (en) | The new-type movable arm potential energy recovery system of ultra-large type hydraulic crawler excavator | |
| CN202829411U (en) | Control system of freely-descending mechanism of hoisting machinery | |
| CN203594061U (en) | Rotation hydraulic control device of excavator movable arm platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20141210 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110629 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |