CN203822761U - Hydraulic system and engineering machinery - Google Patents
Hydraulic system and engineering machinery Download PDFInfo
- Publication number
- CN203822761U CN203822761U CN201420086741.1U CN201420086741U CN203822761U CN 203822761 U CN203822761 U CN 203822761U CN 201420086741 U CN201420086741 U CN 201420086741U CN 203822761 U CN203822761 U CN 203822761U
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- hydraulic
- fluid pressure
- pressure pipe
- heating fluid
- hydraulic oil
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Abstract
The utility model discloses a hydraulic system and engineering machinery. The hydraulic system comprises a hydraulic oil tank, a hydraulic pump and an executive component; the inlet and the outlet of the hydraulic pump are respectively connected with the hydraulic oil tank and the executive component; the hydraulic system also comprises a heating water tank, a control valve and a heating hydraulic pipe; the heating hydraulic pipe is arranged in the heating water tank and is connected between the outlet of the hydraulic pump and the hydraulic oil tank; the control valve is used for controlling whether hydraulic oil output by the hydraulic pump passes through the heating hydraulic pipe or not. The hydraulic system comprises the heating hydraulic pipe and the heating water tank, and when the hydraulic oil in the hydraulic system is too low in temperature, the hydraulic oil pumped out by the hydraulic pump passes through the heating hydraulic pipe, and the heating hydraulic pipe transfers heat contained in hot water in the heating water tank to the hydraulic oil, so the aim of heating the hydraulic oil is fulfilled. Therefore, compared with the prior art, the hydraulic system has the advantage of solving the problem that the hydraulic oil difficultly flows due to too low temperature.
Description
Technical field
The utility model relates to hydraulics, is specifically related to a kind of hydraulic system; In addition, the utility model also relates to the engineering machinery with this hydraulic system.
Background technique
At present, hydraulic transmission has become the power delivery mode of most of engineering goods, especially take engineering machinery as Sheng.Hydraulic system is to realize hydraulicdriven hardware platform, and complete hydraulic system generally includes oil hydraulic pump, hydraulic oil container, valve, executive component and hydraulic pipe line, and hydraulic oil is the rely medium of transferring power of hydraulic system; During work, oil hydraulic pump is from hydraulic oil container inhalant liquid force feed, and to hydraulic oil pressurization (being pressure energy by kinetic transformation), the hydraulic oil after pressurization offers executive component with valve by the road, executive component changes into kinetic energy by the pressure energy of hydraulic oil, and then completes predetermined action.
In cold area, hydraulic oil is subject to low temperature effect, and viscosity increases, and mobility variation causes running of hydraulic power oil difficulty, affects the transmission efficiency of whole hydraulic system, when serious, may cause hydraulic system normally to work.
Therefore, how to solve hydraulic system and under low temperature condition, occur the problem of running of hydraulic power oil difficulty, be still those skilled in the art's technical problem urgently to be resolved hurrily.
Model utility content
In view of this, the utility model proposes a kind of hydraulic system, to solve the problem that occurs running of hydraulic power oil difficulty under low temperature environment.In addition, the utility model also proposes a kind of engineering machinery with this hydraulic system.
On the one hand, the utility model provides a kind of hydraulic system, comprises hydraulic oil container, oil hydraulic pump and executive component, and the import of described oil hydraulic pump, outlet are connected with described hydraulic oil container, executive component respectively; Described hydraulic system also comprises heating water chamber, control valve and heating fluid pressure pipe, described heating fluid pressure pipe is located in described heating water chamber, described heating fluid pressure pipe is connected between described hydraulic pressure delivery side of pump and hydraulic oil container, and whether described control valve passes through heating fluid pressure pipe for controlling the hydraulic oil of oil hydraulic pump output.
Further, described control valve is selector valve, and at the first predetermined state, described selector valve is communicated with described oil hydraulic pump and heating fluid pressure pipe; At the second predetermined state, described selector valve is communicated with described oil hydraulic pump and executive component.
Further, described control valve is stop valve, is arranged between oil hydraulic pump and heating fluid pressure pipe, for being communicated with or disconnecting described oil hydraulic pump and heating fluid pressure pipe; Or described stop valve is arranged between heating fluid pressure pipe and hydraulic oil container, for being communicated with or disconnecting described heating fluid pressure pipe and hydraulic oil container.
Further, described control valve also comprises stop valve, and described stop valve is located between described heating fluid pressure pipe and hydraulic oil container; Described selector valve and stop valve interlock, at the first predetermined state, described stop valve is communicated with described heating fluid pressure pipe and hydraulic oil container; At the second predetermined state, described stop valve disconnects described heating fluid pressure pipe and hydraulic oil container.
Further, described hydraulic system also comprises timer and controller, and described timer is associated with selector valve or stop valve, for recording described selector valve or stop valve lasting time when the first predetermined state; The time that described controller records according to described timer is controlled described selector valve action.
Further, described hydraulic system also comprises temperature transducer and controller, and described temperature transducer is for detecting in real time the temperature of hydraulic oil in described hydraulic oil container; The temperature that described controller detects according to described temperature transducer is controlled described selector valve action.
Further, described heating fluid pressure pipe is made by metallic material, and is " Z " type and is folded and placed in described heating water chamber.
The hydraulic system the utility model proposes is provided with heating fluid pressure pipe and heating water chamber, when hydraulic fluid temperature in hydraulic system is too low, allow the hydraulic oil that oil hydraulic pump pumps pass through heating fluid pressure pipe, the heat that heating fluid pressure pipe contains hot water in heating water chamber is passed to hydraulic oil, thereby realizes the object of heating fluid force feed.Therefore, compared with prior art, this hydraulic system can solve the too low running of hydraulic power oil difficult problem causing of temperature.
On the other hand, the utility model also proposes a kind of engineering machinery, comprises the hydraulic system of automobile chassis and above-mentioned any one, and described automobile chassis is provided with motor car engine, the heat distributing when described heating water chamber receives described motor car engine work.
Further, the outlet pipe of described motor car engine passes in described heating water chamber, or, the cooling water tank that described heating water chamber is described motor car engine.
Compared with prior art, by above-mentioned hydraulic system is set, the engineering machinery the utility model proposes can adapt to low temperature environment better, before arriving operation place, the heat distributing in the time of can utilizing motor car engine work carries out preheating to hydraulic oil, after arriving operation place, hydraulic system can be devoted oneself to work at any time, has improved working efficiency.In addition, cost is also lower.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The structural representation of the hydraulic system that Fig. 1 provides for the utility model specific embodiment;
The partial structurtes schematic diagram of the engineering machinery that Fig. 2 provides for the utility model specific embodiment;
Fig. 3 is A-A cross-sectional view in Fig. 2.
Description of reference numerals
1-oil hydraulic pump, 2-hydraulic oil container, 3-executive component, 4-hydrovalve, 5-selector valve
6-heating fluid pressure pipe, 7-heating water chamber, 8-stop valve, 9-outlet pipe
10-water intake, 11-water outlet
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the utility model can combine mutually.Below in conjunction with 1 to 3 pair of specific embodiment of the utility model of accompanying drawing, be elaborated.
For convenience of statement, the noun of locality is herein defined as follows: front view 1, and left be left, and right-hand is the right side, and top is upper, under below is.
As shown in Figure 1, the pumping system that the utility model specific embodiment proposes comprises oil hydraulic pump 1, hydraulic oil container 2, hydraulic jack 3(executive component), hydrovalve 4, selector valve 5, heating fluid pressure pipe 6, heating water chamber 7 and stop valve 8; The import of oil hydraulic pump 1 is connected with hydraulic oil container 2, and the outlet of oil hydraulic pump 1 is connected with selector valve 5; Selector valve 5 is two-position three-way valve, and two outlet connects respectively heating fluid pressure pipe 6 and hydrovalve 4, and hydrovalve 4 is for controlling the flow direction of hydraulic jack 3.During hydraulic jack 3 work, selector valve 5 is in upper, hydrovalve 4 and oil hydraulic pump 1 are communicated with, now, if hydrovalve 4 is in left position, hydraulic oil enters the left chamber of hydraulic jack 3, the motion of turning right of the piston rod of hydraulic jack 3, if hydrovalve 4 is in right position, hydraulic oil enters the right chamber of hydraulic jack 3, and the piston rod of hydraulic jack 3 is toward left movement.When ambient temperature lower, cause running of hydraulic power oil at need, selector valve 5 is placed in the next, and open stop valve 8, now, oil hydraulic pump 1 is communicated with heating fluid pressure pipe 6, heating fluid pressure pipe 6 is communicated with hydraulic oil container 2, the hydraulic oil that oil hydraulic pump 1 the pumps heating fluid pressure pipe 6 of flowing through, in heating water chamber 7, contain hot water, the heat containing in hot water is passed to hydraulic oil by the tube wall of heating fluid pressure pipe 6, and hydraulic oil is from flowing back to hydraulic oil container 2 through heating by stop valve 8, by the reciprocation cycle of certain hour, the temperature of hydraulic oil can improve.
In a further embodiment, can in this hydraulic system, timer be set, timer can be associated with selector valve 5 or stop valve 8, when selector valve 5 is positioned at the next or stop valve 8 and opens, timer starts timing, operator can rule of thumb heat reasonable time by hydraulic oil, when the time of timer record reaches appropriate time, selector valve 5 are switched to upper.
Certainly, also can detect in real time by the correct position set temperature sensor in hydraulic system the temperature of hydraulic oil, and then whether put in place according to the temperature judgement heating of hydraulic oil; During specific operation, when the temperature that can detect at temperature transducer reaches predetermined value, selector valve 5 is switched to upper.Certainly, for automatically controlling the heating process of hydraulic oil, this hydraulic system is also provided with controller, and controller is electrically connected to temperature transducer, selector valve 5, when the temperature that hydraulic oil detected when temperature transducer reaches predetermined value, controller is controlled selector valve 5 and is switched to upper.
In the above-described embodiments, the benefit that stop valve 8 is set is, selector valve 5 switch to upper after, avoid the heat that the interior hot water of heating water chamber 7 contains to be passed to again in hydraulic oil container 2.Certainly, if do not needed, reach this object, also can be omitted in other embodiments.
In addition, specific embodiment of the utility model has also proposed a kind of engineering machinery, and it comprises automobile chassis and above-mentioned hydraulic system; Automobile chassis is provided with motor car engine, and while specifically arranging, as shown in Figures 2 and 3, the outlet pipe 9 of motor car engine passes in heating water chamber 7, and the Btu utilization that motor exhaust can be taken out of like this reduces energy waste.
Certainly, also the cooling system of motor car engine can be connected with heating water chamber 7, heating water chamber 7 receives the heat that cooling system absorbs, and the heat that can utilize like this motor to produce continues heat supply to the water in heating water chamber 7.
When concrete application, may need heating water chamber 7 to be fixed on automobile chassis, for convenience of water being injected or discharging heating water chamber 7, water intake 10 can be set at its top, in its bottom, set out the mouth of a river 11.
Above-mentioned engineering machinery can be specifically concrete mixer, transit mixer or road roller etc.; Compared with prior art, by above-mentioned hydraulic system is set, this project machinery can adapt to low temperature environment better.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a hydraulic system, comprise hydraulic oil container, oil hydraulic pump and executive component, the import of described oil hydraulic pump, outlet are connected with described hydraulic oil container, executive component respectively, it is characterized in that, described hydraulic system also comprises heating water chamber, control valve and heating fluid pressure pipe, described heating fluid pressure pipe is located in described heating water chamber, and described heating fluid pressure pipe is connected between described hydraulic pressure delivery side of pump and hydraulic oil container, and whether described control valve passes through heating fluid pressure pipe for controlling the hydraulic oil of oil hydraulic pump output.
2. hydraulic system according to claim 1, is characterized in that, described control valve is selector valve, and at the first predetermined state, described selector valve is communicated with described oil hydraulic pump and heating fluid pressure pipe; At the second predetermined state, described selector valve is communicated with described oil hydraulic pump and executive component.
3. hydraulic system according to claim 1, is characterized in that, described control valve is stop valve, is arranged between oil hydraulic pump and heating fluid pressure pipe, for being communicated with or disconnecting described oil hydraulic pump and heating fluid pressure pipe; Or described stop valve is arranged between heating fluid pressure pipe and hydraulic oil container, for being communicated with or disconnecting described heating fluid pressure pipe and hydraulic oil container.
4. hydraulic system according to claim 2, is characterized in that, described control valve also comprises stop valve, and described stop valve is located between described heating fluid pressure pipe and hydraulic oil container; Described selector valve and stop valve interlock, at the first predetermined state, described stop valve is communicated with described heating fluid pressure pipe and hydraulic oil container; At the second predetermined state, described stop valve disconnects described heating fluid pressure pipe and hydraulic oil container.
5. hydraulic system according to claim 4, is characterized in that, also comprises timer and controller, and described timer is associated with selector valve or stop valve, for recording described selector valve or stop valve lasting time when the first predetermined state; The time that described controller records according to described timer is controlled described selector valve action.
6. hydraulic system according to claim 4, is characterized in that, also comprises temperature transducer and controller, and described temperature transducer is for detecting in real time the temperature of hydraulic oil in described hydraulic oil container; The temperature that described controller detects according to described temperature transducer is controlled described selector valve action.
7. according to the hydraulic system described in claim 1 to 6 any one, it is characterized in that, described heating fluid pressure pipe is made by metallic material, and is " Z " type and is folded and placed in described heating water chamber.
8. an engineering machinery, is characterized in that, comprises the hydraulic system described in automobile chassis and claim 1 to 7 any one, and described automobile chassis is provided with motor car engine, the heat distributing when described heating water chamber receives described motor car engine work.
9. engineering machinery according to claim 8, is characterized in that, the outlet pipe of described motor car engine passes in described heating water chamber, or, the cooling water tank that described heating water chamber is described motor car engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086741.1U CN203822761U (en) | 2013-12-05 | 2014-02-27 | Hydraulic system and engineering machinery |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653424.3 | 2013-12-05 | ||
| CN201310653424 | 2013-12-05 | ||
| CN201420086741.1U CN203822761U (en) | 2013-12-05 | 2014-02-27 | Hydraulic system and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822761U true CN203822761U (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420086741.1U Expired - Fee Related CN203822761U (en) | 2013-12-05 | 2014-02-27 | Hydraulic system and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822761U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405732A (en) * | 2014-11-21 | 2015-03-11 | 三一重型装备有限公司 | Bracket carrier and self-heating system for hydraulic oil tank thereof |
| CN108375727A (en) * | 2018-03-20 | 2018-08-07 | 国家电投集团河南电力有限公司技术信息中心 | A kind of gas-actuated relay calibration stand and its method of calibration |
| CN112648265A (en) * | 2021-01-05 | 2021-04-13 | 中联重科土方机械有限公司 | Heating system for hydraulic system, heating control method and excavator |
-
2014
- 2014-02-27 CN CN201420086741.1U patent/CN203822761U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405732A (en) * | 2014-11-21 | 2015-03-11 | 三一重型装备有限公司 | Bracket carrier and self-heating system for hydraulic oil tank thereof |
| CN108375727A (en) * | 2018-03-20 | 2018-08-07 | 国家电投集团河南电力有限公司技术信息中心 | A kind of gas-actuated relay calibration stand and its method of calibration |
| CN112648265A (en) * | 2021-01-05 | 2021-04-13 | 中联重科土方机械有限公司 | Heating system for hydraulic system, heating control method and excavator |
| CN112648265B (en) * | 2021-01-05 | 2023-11-21 | 中联重科土方机械有限公司 | Heating system for hydraulic system, heating control method and excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Hydraulic system and engineering machinery Effective date of registration: 20161101 Granted publication date: 20140910 Pledgee: Hunan Sany Road Machinery Co., Ltd. Pledgor: SANY Automobile Manufacturing Co., Ltd. Registration number: 2016430000041 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20170227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211126 Granted publication date: 20140910 Pledgee: HUNAN SANY ROAD MACHINERY Co.,Ltd. Pledgor: Sany Automobile Manufacturing Co.,Ltd. Registration number: 2016430000041 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |