CN202833441U - Automatic control system of temperature of hydraulic oil and engineering machinery - Google Patents
Automatic control system of temperature of hydraulic oil and engineering machinery Download PDFInfo
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- CN202833441U CN202833441U CN 201220493383 CN201220493383U CN202833441U CN 202833441 U CN202833441 U CN 202833441U CN 201220493383 CN201220493383 CN 201220493383 CN 201220493383 U CN201220493383 U CN 201220493383U CN 202833441 U CN202833441 U CN 202833441U
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Abstract
The utility model provides an automatic control system of the temperature of hydraulic oil. The automatic control system of the temperature of the hydraulic oil is used for controlling the temperature of the hydraulic oil in a hydraulic system and comprises a heating device, a radiating device and a temperature control device. The heating device is arranged on the lower portion inside an oil tank of the hydraulic system and used for heating the hydraulic oil in the oil tank. The radiating device is arranged at a pipeline of the hydraulic system and dissipates heat of the hydraulic oil of the hydraulic system. The temperature control device is connected with control ends of the heating device and the radiating device, arranged at the oil tank of the hydraulic system and used for detecting the temperature of the hydraulic oil in the oil tank. When the temperature exceeds or equals the first pre-set temperature, the radiating device is controlled to work and dissipates heat out of the hydraulic oil in the oil tank. When the temperature is lower than or equals the second pre-set temperature, the heating device is controlled to work and heat the hydraulic oil in the oil tank. The utility model further discloses engineering machinery. Based on the automatic control system of the temperature of hydraulic oil and the engineering machinery, the temperature of the hydraulic oil can be automatically controlled in case that the temperature of the hydraulic oil is excessively high or excessively low.
Description
Technical field
The utility model relates to the hydraulics field, in particular to a kind of hydraulic oil temperature automatic control system and the engineering machinery that comprises this system.
Background technique
The hydraulic system sink of rotary drilling rig is that system starts working at present, and hydraulic oil cooling system is namely worked, and hydraulic system can cause the startability variation when low-temperature range is worked.Hydraulic oil temperature generally should be controlled in 30 ℃ of-50 ℃ of scopes, and Gao Buying is higher than 70 ℃, minimumly should not be lower than 15 ℃, too high or too lowly all can cause certain destruction to hydraulic system.Only analysis of hydraulic oil overheat has been taked certain measure in the correlation technique, can not spend low situation to the hydraulic oil temperature that cold climate causes and process.
Therefore, need a kind of hydraulic oil temperature control technique, can automatically control according to the temperature of hydraulic oil, prevent that analysis of hydraulic oil overheat or temperature are excessively low.
The model utility content
For the problems referred to above, the purpose of this utility model provides a kind of hydraulic oil temperature automatic control system, can automatically control according to the temperature of hydraulic oil, prevents that analysis of hydraulic oil overheat or temperature are excessively low.
In view of this, the utility model proposes a kind of hydraulic oil temperature automatic control system, comprising: heater, be arranged on the bottom of the fuel tank internal of described hydraulic system, the hydraulic oil of described fuel tank internal is heated; Radiator is arranged on the pipeline place of described hydraulic system, and the hydraulic oil of described hydraulic system is dispelled the heat; And temperature controlling device, be connected to the control end of described heater and described radiator, be arranged on the fuel tank place of described hydraulic system, detect the temperature of hydraulic oil in the described fuel tank, when described temperature is greater than or equal to the first preset temperature, control described radiator work, hydraulic oil to described fuel tank internal dispels the heat, when described temperature is less than or equal to the second preset temperature, control described heater work, the hydraulic oil of described fuel tank internal is heated.
In this technological scheme, the hydraulic oil temperature automatic control system is provided with heater, can the hydraulic oil in the hydraulic system be heated.When hydraulic system was worked in cold climate, the temperature of hydraulic oil can be with the ambient temperature step-down, and this moment, heater can start automatically according to oil temperature, and the heating fluid force feed prevents that hydraulic oil temperature from spending the low hydraulic system startability variation that causes.Heater is installed in the position that the Hydraulic System Oil lower box part leaves the bottom surface a little, deep fat floating after the heating, and cold oil is dirty, produces convection current, makes the fluid thermally equivalent.
Preferably, described temperature controlling device specifically comprises: the first temperature detect switch (TDS), be connected to control end and the power supply of described radiator, and when described temperature is greater than or equal to the first preset temperature, control described radiator work; The second temperature detect switch (TDS) is connected to described heater and power supply, when described temperature is less than or equal to the second preset temperature, controls described heater work.
In this technological scheme, by two temperature detect switch (TDS)s difference control heaters and radiator, oil temperature is remained in certain scope.For example, the first preset temperature is set to 50 ℃, and when oil temperature is greater than or equal to 50 ℃, the first temperature detect switch (TDS) disconnects, and starts radiator and dispels the heat, and the first temperature detect switch (TDS) was opened when oil temperature dropped to below 50 ℃, closed radiator; The second preset temperature is set to 15 ℃, and the second temperature detect switch (TDS) is opened when oil temperature is less than or equal to 15 ℃, starts heater and heats, and the second temperature detect switch (TDS) cut out when oil temperature was raised to 15 ℃, closed heater.The temperature of hydraulic oil is remained between 15 ℃ to 50 ℃.
Preferably, described radiator comprises the fan by fluid motor-driven, and the control end of described radiator comprises control valve, and described control valve is arranged on the oil circuit between described oil hydraulic motor and the hydraulic oil source, is used for the through and off of this oil circuit of control.
In this technological scheme, by the fan cooling of fluid motor-driven.Control valve can be by electric or electric and hydraulic element combination control.
Preferably, described control valve comprises selector valve: when described selector valve was positioned at the first valve position, hydraulic oil source was communicated with described oil hydraulic motor by the first actuator port of described selector valve; When described selector valve was positioned at the second valve position, described hydraulic oil source was connected to fuel tank by the second actuator port of described selector valve.
In this technological scheme, can directly flow back to fuel tank through oil hydraulic motor or without oil hydraulic motor by oil circuit control by selector valve, control easily the radiator opening and closing.
Preferably, described selector valve is electro-hydraulic reversing valve.In this technological scheme, use electro-hydraulic reversing valve directly to be electrically connected with the first temperature detect switch (TDS), by the first temperature detect switch (TDS) electrical control, because the flow that general electrically-controlled valve is supported is less, can't satisfy the hydraulic system of large flow in a lot of situations, and hydraulicchange-over valve can be supported the hydraulic system of large flow, is applicable to the larger situation of hydraulic fluid flow rate.
Preferably, described control valve comprises hydraulicchange-over valve and solenoid valve, described oil hydraulic motor is connected to the described hydraulic oil source of described hydraulic system through described hydraulicchange-over valve, wherein: when described hydraulicchange-over valve was positioned at the first valve position, described hydraulic oil source was communicated with described oil hydraulic motor by the first actuator port of described hydraulicchange-over valve; When described hydraulicchange-over valve was positioned at the second valve position, described hydraulic oil source was connected to fuel tank by the second actuator port of described hydraulicchange-over valve; Described solenoid valve is connected to described hydraulicchange-over valve and guide's oil circuit, and guide oil promotes the spool of described hydraulicchange-over valve through described solenoid valve; Described the first temperature detect switch (TDS) is connected to described solenoid valve, control described solenoid valve conducting, close.
In this technological scheme, solenoid valve and hydraulicchange-over valve are used in conjunction with the effect that can play by the first temperature detect switch (TDS) electrical control.Because the flow that general electrically-controlled valve is supported is less, can't satisfy the hydraulic system of large flow in a lot of situations, and hydraulicchange-over valve can be supported the hydraulic system of large flow, is applicable to the larger situation of hydraulic fluid flow rate.
Preferably, other element in described oil hydraulic motor and the described hydraulic system uses common return line; And described hydraulic oil temperature automatic control system can also comprise one-way valve, is arranged on the oil circuit between described oil hydraulic motor and the described return line.
In this technological scheme, one-way valve the running that the hydraulic oil adverse current that can prevent return line affects oil hydraulic motor is set.
Preferably, described oil hydraulic motor is arranged on the working connection of described hydraulic system.
In this technological scheme, oil hydraulic motor is arranged on the hydraulic work system oil circuit, and needn't design independent oil circuit, can optimize the pipe-line layout of hydraulic system.
The utility model also provides a kind of engineering machinery, comprises each described hydraulic oil temperature automatic control system in the technique scheme, and for example described engineering machinery can be rotary drilling rig.
By technique scheme, the hydraulic oil temperature control system can be controlled automatically according to the temperature of hydraulic oil, prevents that analysis of hydraulic oil overheat or temperature are excessively low.
Description of drawings
Fig. 1 shows the schematic diagram according to an embodiment's of the present utility model hydraulic oil temperature automatic control system;
Fig. 2 shows the schematic diagram according to another embodiment's of the present utility model hydraulic oil temperature automatic control system.
Component names and the corresponding relation between the reference character among Fig. 1 and Fig. 2 are:
1 heater; 2 radiators; 3 electro-hydraulic reversing valves; 4 hydraulicchange-over valves; 5 solenoid valves; 6 fuel tanks; 7 hydraulic oil sources; 8 one-way valves; 21 oil hydraulic motors.
Embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not subjected to the restriction of following public specific embodiment.
Below in conjunction with drawings and Examples the utility model is described further.Need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
Fig. 1 shows the schematic diagram according to an embodiment's of the present utility model hydraulic oil temperature automatic control system.
As shown in Figure 1, comprise according to embodiment's of the present utility model hydraulic oil temperature automatic control system: heater 1, be arranged on the bottom of fuel tank 6 inside of hydraulic system, the hydraulic oil of fuel tank 6 inside is heated; Radiator 2 is arranged on the pipeline place of hydraulic system, and the hydraulic oil of hydraulic system is dispelled the heat; And temperature controlling device, be connected to the control end of heater and radiator, be arranged on fuel tank 6 places of hydraulic system, detect the temperature of fuel tank 6 interior hydraulic oil, when temperature is greater than or equal to the first preset temperature, 2 work of control radiator, hydraulic oil to fuel tank 6 inside dispels the heat, when temperature was less than or equal to the second preset temperature, control heater 1 work was heated the hydraulic oil of fuel tank 6 inside.
In this technological scheme, the hydraulic oil temperature automatic control system is provided with heater 1, can the hydraulic oil in the hydraulic system be heated.When hydraulic system was worked in cold climate, the temperature of hydraulic oil can be with the ambient temperature step-down, and this moment, heater 1 can start automatically according to oil temperature, and the heating fluid force feed prevents that hydraulic oil temperature from spending the low hydraulic system startability variation that causes.Heater 1 is installed in the position that hydraulic reservoir 6 bottoms are left the bottom surface a little, deep fat floating after the heating, and cold oil is dirty, produces convection current, makes the fluid thermally equivalent.
Preferably, temperature controlling device specifically comprises: the first temperature detect switch (TDS), be connected to control end and the power supply of radiator 2, and when temperature is greater than or equal to the first preset temperature, 2 work of control radiator; The second temperature detect switch (TDS) is connected to heater 1 and power supply, when temperature is less than or equal to the second preset temperature, and control heater 1 work.
In this technological scheme, by two temperature detect switch (TDS)s difference control heaters 1 and radiator 2, oil temperature is remained in certain scope.For example, the first preset temperature is set to 50 ℃, and when oil temperature is greater than or equal to 50 ℃, the first temperature detect switch (TDS) disconnects, and starts radiator 2 and dispels the heat, and the first temperature detect switch (TDS) was opened when oil temperature dropped to below 50 ℃, closed radiator 2; The second preset temperature is set to 15 ℃, and the second temperature detect switch (TDS) is opened when oil temperature is less than or equal to 15 ℃, starts heater 1 and heats, and the second temperature detect switch (TDS) cut out when oil temperature was raised to 15 ℃, closed heater 1.The temperature of hydraulic oil is remained between 15 ℃ to 50 ℃.
Preferably, radiator 2 comprises the fan that is driven by oil hydraulic motor 21, and the control end of radiator 2 comprises control valve, and control valve is arranged on the oil circuit between oil hydraulic motor 21 and the hydraulic oil source 7, is used for controlling the through and off of this oil circuit.
In this technological scheme, by the fan cooling of oil hydraulic motor 21 drivings.Control valve can be by electric or electric and hydraulic element combination control.
In this embodiment, adopt electro-hydraulic reversing valve 3 as control valve.When electro-hydraulic reversing valve 3 was positioned at the first valve position, hydraulic oil source 7 was communicated with oil hydraulic motor by the first actuator port of electro-hydraulic reversing valve 3; When electro-hydraulic reversing valve 3 was positioned at the second valve position, hydraulic oil source 7 was connected to fuel tank 6 by the second actuator port of electro-hydraulic reversing valve 3.Can directly flow back to fuel tank 6 through oil hydraulic motor 21 or without oil hydraulic motor 21 by oil circuit control by electro-hydraulic reversing valve 3, control easily radiator 2 opening and closing, and, use electro-hydraulic reversing valve 3 directly to be electrically connected with the first temperature detect switch (TDS), by the first temperature detect switch (TDS) electrical control.
Preferably, oil hydraulic motor 21 return line common with other element use in the hydraulic system; And the hydraulic oil temperature automatic control system also comprises one-way valve 8, is arranged on the oil circuit between oil hydraulic motor 21 and the return line.
Preferably, oil hydraulic motor 21 is arranged on the working connection of hydraulic system.
In this technological scheme, oil hydraulic motor 21 is arranged on the hydraulic work system oil circuit, and needn't design independent oil circuit, can optimize the pipe-line layout of hydraulic system.
Fig. 2 shows the schematic diagram according to another embodiment's of the present utility model hydraulic oil temperature automatic control system.
As shown in Figure 2, comprise according to another embodiment's of the present utility model hydraulic oil temperature automatic control system: heater 1, be arranged on the bottom of fuel tank 6 inside of hydraulic system, the hydraulic oil of fuel tank 6 inside is heated; Radiator 2 is arranged on the pipeline place of hydraulic system, and the hydraulic oil of hydraulic system is dispelled the heat; And temperature controlling device, be connected to the control end of heater and radiator, be arranged on fuel tank 6 places of hydraulic system, detect the temperature of fuel tank 6 interior hydraulic oil, when temperature is greater than or equal to the first preset temperature, 2 work of control radiator, hydraulic oil to fuel tank 6 inside dispels the heat, when temperature was less than or equal to the second preset temperature, control heater 1 work was heated the hydraulic oil of fuel tank 6 inside.
In this technological scheme, the hydraulic oil temperature automatic control system is provided with heater 1, can the hydraulic oil in the hydraulic system be heated.When hydraulic system was worked in cold climate, the temperature of hydraulic oil can be with the ambient temperature step-down, and this moment, heater 1 can start automatically according to oil temperature, and the heating fluid force feed prevents that hydraulic oil temperature from spending the low hydraulic system startability variation that causes.Heater 1 is installed in the position that hydraulic reservoir 6 bottoms are left the bottom surface a little, deep fat floating after the heating, and cold oil is dirty, produces convection current, makes the fluid thermally equivalent.
Preferably, temperature controlling device specifically comprises: the first temperature detect switch (TDS), be connected to control end and the power supply of radiator 2, and when temperature is greater than or equal to the first preset temperature, 2 work of control radiator; The second temperature detect switch (TDS) is connected to heater 1 and power supply, when temperature is less than or equal to the second preset temperature, and control heater 1 work.
In this technological scheme, by two temperature detect switch (TDS)s difference control heaters 1 and radiator 2, oil temperature is remained in certain scope.For example, the first preset temperature is set to 50 ℃, and when oil temperature is greater than or equal to 50 ℃, the first temperature detect switch (TDS) disconnects, and starts radiator 2 and dispels the heat, and the first temperature detect switch (TDS) was opened when oil temperature dropped to below 50 ℃, closed radiator 2; The second preset temperature is set to 15 ℃, and the second temperature detect switch (TDS) is opened when oil temperature is less than or equal to 15 ℃, starts heater 1 and heats, and the second temperature detect switch (TDS) cut out when oil temperature was raised to 15 ℃, closed heater 1.The temperature of hydraulic oil is remained between 15 ℃ to 50 ℃.
Preferably, radiator 2 comprises the fan that is driven by oil hydraulic motor 21, and the control end of radiator 2 comprises control valve, and control valve is arranged on the oil circuit between oil hydraulic motor 21 and the hydraulic oil source 7, is used for controlling the through and off of this oil circuit.
In this technological scheme, by the fan cooling of oil hydraulic motor 21 drivings.Control valve can be by electric or electric and hydraulic element combination control.
In this embodiment, by hydraulicchange-over valve 4 and solenoid valve 5 composition control valves.Oil hydraulic motor 21 is connected to the hydraulic oil source 7 of hydraulic system through hydraulicchange-over valve 4, wherein: when hydraulicchange-over valve 4 was positioned at the first valve position, hydraulic oil source 7 was communicated with oil hydraulic motor 21 by the first actuator port of hydraulicchange-over valve 4; When hydraulicchange-over valve 4 was positioned at the second valve position, hydraulic oil source 7 was connected to fuel tank 6 by the second actuator port of hydraulicchange-over valve 4; Solenoid valve 5 is connected to hydraulicchange-over valve 4 and guide's oil circuit, and guide oil promotes the spool of hydraulicchange-over valve 4 through solenoid valve 5; The first temperature detect switch (TDS) is connected to solenoid valve 5, control solenoid valve 5 conducting, close.
In this technological scheme, solenoid valve 5 and hydraulicchange-over valve 4 are used in conjunction with the effect that can play by the first temperature detect switch (TDS) electrical control.Because the flow that general electrically-controlled valve is supported is less, can't satisfy the hydraulic system of large flow in a lot of situations, and hydraulicchange-over valve 4 can be supported the hydraulic system of large flow, is applicable to the larger situation of hydraulic fluid flow rate.
Preferably, oil hydraulic motor 21 return line common with other element use in the hydraulic system; And the hydraulic oil temperature automatic control system also comprises one-way valve 8, is arranged on the oil circuit between oil hydraulic motor 21 and the return line.
Preferably, oil hydraulic motor 21 is arranged on the working connection of hydraulic system.
In this technological scheme, oil hydraulic motor 21 is arranged on the hydraulic work system oil circuit, and needn't design independent oil circuit, can optimize the pipe-line layout of hydraulic system.
Each described hydraulic oil temperature automatic control system in the technique scheme is installed on the engineering machinery, can consists of the embodiment according to engineering machinery of the present utility model, for example this project machinery can be rotary drilling rig.
To sum up, according to the utility model, can automatically control according to the temperature of hydraulic oil, prevent that analysis of hydraulic oil overheat or temperature are excessively low.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. hydraulic oil temperature automatic control system is used for the temperature of hydraulic oil in the control hydraulic system, it is characterized in that, comprising:
Heater (1) is arranged on the inner bottom of fuel tank (6) of described hydraulic system, and the hydraulic oil inner to described fuel tank (6) heats;
Radiator (2) is arranged on the pipeline place of described hydraulic system, and the hydraulic oil of described hydraulic system is dispelled the heat; And
Temperature controlling device, be connected to the control end of described heater (1) and described radiator (2), the fuel tank (6) that is arranged on described hydraulic system is located, detect the temperature of the interior hydraulic oil of described fuel tank (6), when described temperature is greater than or equal to the first preset temperature, control described radiator (2) work, the hydraulic oil inner to described fuel tank (6) dispels the heat, when described temperature is less than or equal to the second preset temperature, control described heater (1) work, the hydraulic oil inner to described fuel tank (6) heats.
2. hydraulic oil temperature automatic control system according to claim 1 is characterized in that, described temperature controlling device specifically comprises:
The first temperature detect switch (TDS) is connected to control end and the power supply of described radiator (2), when described temperature is greater than or equal to the first preset temperature, controls described radiator (2) work;
The second temperature detect switch (TDS) is connected to described heater (1) and power supply, when described temperature is less than or equal to the second preset temperature, controls described heater (1) work.
3. hydraulic oil temperature automatic control system according to claim 2, it is characterized in that, described radiator (2) comprises the fan that is driven by oil hydraulic motor (21), the control end of described radiator (2) comprises control valve, described control valve is arranged on the oil circuit between described oil hydraulic motor (21) and the hydraulic oil source (7), is used for the through and off of this oil circuit of control.
4. hydraulic oil temperature automatic control system according to claim 3 is characterized in that, described control valve comprises selector valve:
When described selector valve was positioned at the first valve position, hydraulic oil source (7) was communicated with described oil hydraulic motor (21) by the first actuator port of described selector valve;
When described selector valve was positioned at the second valve position, described hydraulic oil source (7) was connected to fuel tank (6) by the second actuator port of described selector valve.
5. hydraulic oil temperature automatic control system according to claim 4 is characterized in that, described selector valve is electro-hydraulic reversing valve (3).
6. hydraulic oil temperature automatic control system according to claim 4, it is characterized in that, described control valve comprises hydraulicchange-over valve (4) and solenoid valve (5), described oil hydraulic motor (21) is connected to the described hydraulic oil source (7) of described hydraulic system through described hydraulicchange-over valve (4), wherein:
When described hydraulicchange-over valve (4) when being positioned at the first valve position, described hydraulic oil source (7) is communicated with described oil hydraulic motor (21) by the first actuator port of described hydraulicchange-over valve (4); When described hydraulicchange-over valve (4) when being positioned at the second valve position, described hydraulic oil source (7) is connected to fuel tank (6) by the second actuator port of described hydraulicchange-over valve (4); Described solenoid valve (5) is connected to described hydraulicchange-over valve (4) and guide's oil circuit, and guide oil promotes the spool of described hydraulicchange-over valve (4) through described solenoid valve (5); Described the first temperature detect switch (TDS) is connected to described solenoid valve (5), control described solenoid valve (5) conducting, close.
7. each described hydraulic oil temperature automatic control system in 6 according to claim 3 is characterized in that, described oil hydraulic motor (21) uses common return line with other element in the described hydraulic system; And
Described hydraulic oil temperature automatic control system also comprises one-way valve (8), is arranged on the oil circuit between described oil hydraulic motor (21) and the described return line.
8. each described hydraulic oil temperature automatic control system in 6 according to claim 3 is characterized in that, described oil hydraulic motor (21) is arranged on the working connection of described hydraulic system.
9. an engineering machinery is characterized in that, comprises each described hydraulic oil temperature automatic control system in the claim 1 to 8.
10. engineering machinery according to claim 9 is characterized in that, described engineering machinery is rotary drilling rig.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493383 CN202833441U (en) | 2012-09-25 | 2012-09-25 | Automatic control system of temperature of hydraulic oil and engineering machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493383 CN202833441U (en) | 2012-09-25 | 2012-09-25 | Automatic control system of temperature of hydraulic oil and engineering machinery |
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| CN202833441U true CN202833441U (en) | 2013-03-27 |
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| CN 201220493383 Expired - Fee Related CN202833441U (en) | 2012-09-25 | 2012-09-25 | Automatic control system of temperature of hydraulic oil and engineering machinery |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267043A (en) * | 2013-06-07 | 2013-08-28 | 宁波创力液压机械制造有限公司 | Integrated automatic alarm device of hydraulic system |
| CN103398050A (en) * | 2013-08-12 | 2013-11-20 | 上海中联重科桩工机械有限公司 | Hydraulic oil temperature control system and rotary drilling rig and engineering machine respectively comprising same |
| CN103398049A (en) * | 2013-07-23 | 2013-11-20 | 浙江法拿克机械科技有限公司 | Hydraulic oil temperature control system |
| CN103677018A (en) * | 2013-12-13 | 2014-03-26 | 中联重科股份有限公司 | Mineral oil heating control method, control device and control system |
| CN104074844A (en) * | 2014-07-02 | 2014-10-01 | 北京机械设备研究所 | Debuggable movable hydraulic oil source |
| 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 |
| CN106678093A (en) * | 2017-03-13 | 2017-05-17 | 上海兰石重工机械有限公司 | Temperature control hydraulic system for top drive drilling rig |
| CN111536087A (en) * | 2020-04-30 | 2020-08-14 | 中铁工程机械研究设计院有限公司 | Hydraulic oil temperature control system and control method |
| CN114382752A (en) * | 2022-01-12 | 2022-04-22 | 浙江三一装备有限公司 | Hydraulic control system and control method for working machine and working machine |
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2012
- 2012-09-25 CN CN 201220493383 patent/CN202833441U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267043B (en) * | 2013-06-07 | 2015-06-10 | 宁波创力液压机械制造有限公司 | Integrated automatic alarm device of hydraulic system |
| CN103267043A (en) * | 2013-06-07 | 2013-08-28 | 宁波创力液压机械制造有限公司 | Integrated automatic alarm device of hydraulic system |
| CN103398049A (en) * | 2013-07-23 | 2013-11-20 | 浙江法拿克机械科技有限公司 | Hydraulic oil temperature control system |
| CN103398049B (en) * | 2013-07-23 | 2016-10-19 | 浙江法拿克机械科技有限公司 | A kind of hydraulic oil temperature control system |
| CN103398050A (en) * | 2013-08-12 | 2013-11-20 | 上海中联重科桩工机械有限公司 | Hydraulic oil temperature control system and rotary drilling rig and engineering machine respectively comprising same |
| CN103677018A (en) * | 2013-12-13 | 2014-03-26 | 中联重科股份有限公司 | Mineral oil heating control method, control device and control system |
| CN104074844B (en) * | 2014-07-02 | 2016-03-30 | 北京机械设备研究所 | A kind of debugging mobile hydraulic oil source |
| CN104074844A (en) * | 2014-07-02 | 2014-10-01 | 北京机械设备研究所 | Debuggable movable hydraulic oil source |
| 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 |
| CN106678093A (en) * | 2017-03-13 | 2017-05-17 | 上海兰石重工机械有限公司 | Temperature control hydraulic system for top drive drilling rig |
| CN106678093B (en) * | 2017-03-13 | 2018-05-01 | 上海兰石重工机械有限公司 | Top drive drilling temperature controlling hydraulically system |
| CN111536087A (en) * | 2020-04-30 | 2020-08-14 | 中铁工程机械研究设计院有限公司 | Hydraulic oil temperature control system and control method |
| CN114382752A (en) * | 2022-01-12 | 2022-04-22 | 浙江三一装备有限公司 | Hydraulic control system and control method for working machine and working machine |
| WO2023134125A1 (en) * | 2022-01-12 | 2023-07-20 | 浙江三一装备有限公司 | Work machine hydraulic control system, control method and work machine |
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