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CN1169176A - Process for regulating the cooling system for drives of desel excavator - Google Patents

Process for regulating the cooling system for drives of desel excavator Download PDF

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Publication number
CN1169176A
CN1169176A CN96191125A CN96191125A CN1169176A CN 1169176 A CN1169176 A CN 1169176A CN 96191125 A CN96191125 A CN 96191125A CN 96191125 A CN96191125 A CN 96191125A CN 1169176 A CN1169176 A CN 1169176A
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China
Prior art keywords
fan
diesel engine
cooling system
thermostat
temperature
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Pending
Application number
CN96191125A
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Chinese (zh)
Inventor
乌韦·埃施
赖因哈德·埃明格尔
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O and K Mining GmbH
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O and K Mining GmbH
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Publication of CN1169176A publication Critical patent/CN1169176A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/044—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using hydraulic drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

本方案是一种用来调节特大功率柴油机挖掘机驱动装置冷却系统的方法，这里一个装在柴油机(1)区域的恒温器(4)在预先给定的水温时打开从柴油机(1)到一个与风扇(8)共同起作用的水冷却器(5)的通道，其中装在通道区域内的温度测量装置(11)这样地控制风扇：在一个可预先给定的、超过恒温器控制的水温的温度范围内风扇的转速在0转/分到最大转速之间的范围内调节。

This scheme is a method for regulating the cooling system of a high-power diesel engine excavator drive unit. Here, a thermostat (4) installed in the diesel engine (1) area opens a channel from the diesel engine (1) to a water cooler (5) that works in conjunction with a fan (8) at a predetermined water temperature. A temperature measuring device (11) installed in the channel area controls the fan so that the fan speed is adjusted between 0 rpm and the maximum speed within a predetermined temperature range that exceeds the water temperature controlled by the thermostat.

Description

柴油机挖掘机驱动装置冷却系统 及其调节方法Diesel engine excavator driving device cooling system and its adjustment method

本发明涉及一种用来调节特大功率柴油机挖掘机驱动装置冷却系统的方法。The invention relates to a method for adjusting the cooling system of the driving device of a super-power diesel excavator.

通常挖掘机至少由一个柴油机驱动，其中它常常也用来驱动水冷却器的风扇。作为一种选择方案存在这样的可能性：风扇通过单独的液压驱动装置操纵，其中液压泵同样由柴油机驱动。因此风扇随着当时的柴油机转速不停地旋转，其中在特大功率柴油机(＞600KW)驱动挖掘机时，功率损失达到5％。按照挖掘机规格大小的不同这里功率损失大致可能达到55至60KW。同样还有一个缺点是：由于风扇不停地跟着旋转随着转速的不同产生不可忽略的噪声。The excavator is usually driven by at least one diesel engine, which is often also used to drive the fan of the water cooler. As an alternative, it is possible to actuate the fan via a separate hydraulic drive, the hydraulic pump also being driven by the diesel engine. Therefore, the fan rotates continuously with the diesel engine speed at that time, and when the excavator is driven by a super-power diesel engine (>600KW), the power loss reaches 5%. Depending on the size of the excavator, the power loss here may roughly reach 55 to 60KW. There is also a shortcoming that the non-negligible noise is generated due to the fan constantly rotating with the difference in speed.

本发明对象的目的是：设计一种用来调节特大功率柴油机挖掘机驱动装置冷却系统的方法以及特大功率柴油机挖掘机驱动装置的冷却系统，用它一方面可以避免功率损失，另一方面降低噪声等级。The object of the present invention is to design a method for adjusting the cooling system of the drive unit of an ultra-high-power diesel excavator and the cooling system of the drive unit of an ultra-high-power diesel excavator, which can avoid power loss on the one hand and reduce noise on the other hand grade.

在一种用来调节特大功率柴油机挖掘机驱动装置冷却系统的方法中这个目的用这样的方法来达到：一个装在柴油机部位上的恒温器(Thermostat)在一个预先给定的水温时打开从柴油机到与风扇共同起作用的水冷却器的通道，其中装在通道区域内的温度测量装置这样控制风扇，在一个可以预先确定的超过恒温器调节的水温的温度范围内风扇的转速在0到一个最大转速之间的范围内调节。In a method for regulating the cooling system of the drive unit of an ultra-high-power diesel excavator, this object is achieved in such a way that a thermostat (Thermostat) installed on the diesel engine is opened at a predetermined water temperature from the diesel engine. A channel to a water cooler co-acting with a fan, wherein the temperature measuring device installed in the area of the channel controls the fan in such a way that the speed of the fan is between 0 and adjustable within a range between the maximum speeds.

按本发明方法的优良具体结构可以从从属权利要求中得到。Advantageous specific configurations of the method according to the invention can be obtained from the dependent claims.

这个目的还通过一个用于特大功率柴油机挖掘机驱动装置的冷却系统达到，它带一个恒温器调节的柴油机、一个水冷却器、一个单独驱动的风扇以及柴油机和水冷却器之间冷却介质的连接管道或软管，其中在冷却介质通道的区域设有一个温度测量装置，它通过信号线与风扇驱动装置相连。This object is also achieved by a cooling system for an ultra-high-power diesel excavator drive with a thermostat-regulated diesel engine, a water cooler, a separately driven fan and a connection of the cooling medium between the diesel engine and the water cooler Pipe or hose, in which a temperature measuring device is provided in the region of the cooling medium channel, which is connected to the fan drive via a signal line.

按本发明的冷却系统的优良具体结构可以从从属权利要求中得到。Advantageous specific configurations of the cooling system according to the invention can be derived from the dependent claims.

通过按本发明的标准达到，只有在确实需要冷空气时风扇才启动。与至今为止的运行方式相比特别在寒冷地区节约由风扇或者它的驱动装置所消耗的迄今为止的约5％的功率损失。通过现在起风扇仅仅在需要时或者低速范围内旋转降低了由整个驱动装置产生的噪音。It is achieved by the criteria of the present invention that the fan is only activated when the cooling air is really needed. Compared with the previous mode of operation, the conventional power loss of about 5% which is consumed by the fan or its drive is saved, especially in cold regions. The noise generated by the entire drive is reduced because the fan now rotates only when required or in the low speed range.

借助于在图中表示的一个实施例对本发明的内容作如下的阐述。The content of the invention is explained below with the aid of an exemplary embodiment shown in the drawing.

唯一的附图作为原理简要表示没有进一步画出来的液力挖掘机的柴油机驱动装置。可以看到一个柴油机1、一个在柴油机1内的内部冷却水回路2、一个水泵3以及一个恒温器4。借助于水泵3冷却介质一直沿着它的内部通道流动，直到到达一个预先给定的温度，例如85℃为止。恒温器4设计成这样：在到达这个温度时它开启并打开到后接水冷却器5的通道。柴油机1通过管道6、7与水冷却器5相连，使冷却介质的通道不再仅仅包括内部回路2，而且还包括管道6、7以及水冷却器5。在水冷却器5后面装有一个风扇8，在所述实施例中它通过由风扇油泵9(Lüfterpumpe)和液压马达10组成的液压系统驱动。在管道6的部分装有一个温度测量装置11，它通过电信号线12与这里仅仅标注了一下的调节器13相连，在所述实施例中它做成作为变量泵的风扇油泵9。风扇油泵9由柴油机1驱动，把液压介质送到与风扇相连的液压马达10，在这个实施例中它是一个定量马达(Konstantmotor)。这样来调节冷却系统，直到到达一个规定的水温(例如87℃)以前不通过马达10驱动风扇8，也就是该风扇不转。在水温到达85℃后恒温器4开启，并打开冷却介质通向水冷却器5的通道。只有在水温继续升高(直到87℃，它由温度测量装置11测得)时通过信号线12操纵风扇油泵9的调节器13，使它回转，此时液压介质送到风扇马达，然后它从0开始转速慢慢升高，在95℃左右水温时转速到最高。因此建立起一个8℃的温度窗口，在这个温度范围内风扇转速在0到规定的最大转速范围内调节。在水温降低时上述步骤以相反的顺序进行，也就是说，在温度为87℃时风扇转速重新降到0，风扇油泵9到液压马达10的液流中断，因为风扇油泵重新转回到它的零位。The single figure shows schematically the diesel drive of the hydraulic excavator without further drawing. A diesel engine 1 , an internal cooling water circuit 2 inside the diesel engine 1 , a water pump 3 and a thermostat 4 can be seen. With the aid of the water pump 3 the cooling medium flows along its inner channels until it reaches a predetermined temperature, for example 85° C. The thermostat 4 is designed in such a way that it opens and opens the passage to the subsequent water cooler 5 when this temperature is reached. The diesel engine 1 is connected to the water cooler 5 through pipelines 6 and 7 , so that the channel of the cooling medium no longer only includes the internal circuit 2 , but also includes the pipelines 6 and 7 and the water cooler 5 . A fan 8 is arranged downstream of the water cooler 5 , which is driven in the exemplary embodiment by a hydraulic system consisting of a fan oil pump 9 and a hydraulic motor 10 . A temperature measuring device 11 is housed in the part of the pipeline 6, which is connected to the regulator 13 which is only marked here by an electric signal line 12. In the described embodiment, it is made as the fan oil pump 9 of the variable pump. Fan oil pump 9 is driven by diesel engine 1, and hydraulic medium is sent to the hydraulic motor 10 that links to each other with fan, and it is a quantitative motor (Konstantmotor) in this embodiment. In this way, the cooling system is adjusted until the fan 8 is not driven by the motor 10 until reaching a specified water temperature (for example, 87° C.), that is, the fan does not turn. After the water temperature reaches 85° C., the thermostat 4 is opened, and the passage of the cooling medium to the water cooler 5 is opened. Only when the water temperature continues to rise (up to 87°C, it is measured by the temperature measuring device 11), the regulator 13 of the fan oil pump 9 is manipulated through the signal line 12 to make it rotate. At this time, the hydraulic medium is sent to the fan motor. 0, the speed starts to increase slowly, and the speed reaches the highest when the water temperature is around 95°C. Therefore, a temperature window of 8°C is established, within which the fan speed is adjusted from 0 to the specified maximum speed range. When the water temperature drops, the above steps are carried out in reverse order, that is to say, when the temperature is 87°C, the fan speed drops to 0 again, and the fluid flow from the fan oil pump 9 to the hydraulic motor 10 is interrupted, because the fan oil pump turns back to its zero.

Claims (6)

1.用来调节特大功率柴油机挖掘机驱动装置冷却系统的方法，这里设置在柴油机(1)部位的恒温器(4)在预先规定的水温时打开从柴油机(1)到一个与风扇共同起作用的水冷却器(5)的通道，其中一个装在通道(6)区域的温度测量装置(11)这样地控制风扇(8)，使得在一个可以预先给定的恒温器控制的水温以上的温度范围内在每分钟0转到一个最大转速之间的范围内调节风扇(8)的转速。1. The method used to adjust the cooling system of the super-high-power diesel engine excavator driving device. Here, the thermostat (4) installed at the part of the diesel engine (1) is turned on at the predetermined water temperature from the diesel engine (1) to one that works together with the fan. The channel of the water cooler (5), wherein a temperature measuring device (11) installed in the area of the channel (6) controls the fan (8) in such a way that the temperature above a preset thermostat-controlled water temperature The rotating speed of the fan (8) is adjusted in the range between 0 per minute and a maximum rotating speed within the range. 2.按权利要求1的方法，其特征在于：当水温在约80℃到85℃时恒温器(4)打开通向水冷却器(5)的通道。2. Method according to claim 1, characterized in that the thermostat (4) opens the channel to the water cooler (5) when the water temperature is about 80°C to 85°C. 3.按权利要求1和2的方法，其特征在于：温度测量装置(11)通过由柴油机(1)驱动的风扇油泵(9)的调节器(13)这样地控制风扇(8)的马达(10)，使得当水温在约84℃到88℃时马达(10)将风扇转速从0缓慢地升高，其中只有在水温到达约93℃到97℃才达到必要的最大转速。3. The method according to claims 1 and 2, characterized in that the temperature measuring device (11) controls the motor of the fan (8) via the regulator (13) of the fan oil pump (9) driven by the diesel engine (1) ( 10) Make the motor (10) slowly increase the fan speed from 0 when the water temperature is about 84°C to 88°C, wherein the necessary maximum speed is reached only when the water temperature reaches about 93°C to 97°C. 4.特大功率柴油机挖掘机驱动装置的冷却系统，带一个恒温器调节的柴油机(1)、一个水冷却器(5)，一个可以单独驱动的风扇(8)以及柴油机(1)和水冷却器(5)之间的冷却介质的连接管道或软管(6、7)，其中在冷却介质通道(6)的区域设有一个温度测量装置(11)，它通过信号线(12)与风扇驱动装置(9，10)相连。4. The cooling system of the super-power diesel engine excavator drive unit, with a thermostat-regulated diesel engine (1), a water cooler (5), a fan (8) that can be driven independently, and the diesel engine (1) and water cooler (5) The connecting pipes or hoses (6, 7) of the cooling medium, wherein a temperature measuring device (11) is provided in the area of the cooling medium channel (6), which is driven by the fan through the signal line (12) The devices (9, 10) are connected. 5.按权利要求4的冷却系统，其特征在于：温度测量装置(11)通过信号线(12)与一个由柴油机(1)驱动的，特别是液压可调的、风扇油泵(9)的调节器(13)相连。5. The cooling system according to claim 4, characterized in that the temperature measuring device (11) is connected to a diesel engine (1)-driven, especially hydraulically adjustable, fan oil pump (9) via a signal line (12). Device (13) is connected. 6.按权利要求4和5的冷却系统，其特征在于：风扇油泵(9)给一个驱动风扇(8)的、特别是做成定量马达的液压马达(10)供油。6. Cooling system according to claims 4 and 5, characterized in that the fan oil pump (9) supplies oil to a hydraulic motor (10) which drives the fan (8), in particular designed as a metering motor.
CN96191125A 1995-09-26 1996-08-12 Process for regulating the cooling system for drives of desel excavator Pending CN1169176A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19535674A DE19535674A1 (en) 1995-09-26 1995-09-26 Process for controlling the cooling device of a diesel engine excavator drive and cooling device for diesel engine excavator drives
DE19535674.8 1995-09-26

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CN1169176A true CN1169176A (en) 1997-12-31

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CN96191125A Pending CN1169176A (en) 1995-09-26 1996-08-12 Process for regulating the cooling system for drives of desel excavator

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EP (1) EP0852664A1 (en)
JP (1) JPH11511530A (en)
KR (1) KR19990064447A (en)
CN (1) CN1169176A (en)
AU (1) AU6872496A (en)
BR (1) BR9610697A (en)
CA (1) CA2232642A1 (en)
DE (1) DE19535674A1 (en)
WO (1) WO1997012131A1 (en)
ZA (1) ZA967586B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101892894A (en) * 2010-06-24 2010-11-24 上海三一科技有限公司 Hydraulically-driven diesel radiating system and method thereof
CN102947570A (en) * 2010-06-18 2013-02-27 日立建机株式会社 Work machine

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Publication number Priority date Publication date Assignee Title
DE19844526A1 (en) * 1998-09-29 2000-03-30 Behr Industrietech Gmbh & Co Drive arrangement for fan of vehicle has drive shaft of fluid friction coupling connected to hydrostatic motor connected via hydraulic lines to hydraulic pump driven by engine
DE10044607A1 (en) 2000-09-08 2002-04-04 O & K Mining Gmbh Method and device for controlling a fan drive of an internal combustion engine in construction and / or work machines
CN106195606A (en) * 2016-07-13 2016-12-07 重庆大学 The adjustable three-dimensional ribbed pipe oil cooler of a kind of oil temperature
CN111042905B (en) * 2020-01-15 2021-10-29 重庆西晶源流体技术有限公司 Vehicle fan cooling hydraulic system and control method thereof

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US4062329A (en) * 1976-07-29 1977-12-13 The United States Of America As Represented By The Secretary Of The Army Fan drive system
DE3018076A1 (en) * 1980-05-12 1981-11-19 GST Gesellschaft für Systemtechnik mbH, 4300 Essen Variable speed fan drive for engine cooling system - employing hydraulic fan motor and programmable control circuit
JPS58124017A (en) * 1982-01-19 1983-07-23 Nippon Denso Co Ltd Cooling system controller of engine
GB8614699D0 (en) * 1986-06-17 1986-07-23 Sundstrand Hydratec Ltd Engine cooling systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102947570A (en) * 2010-06-18 2013-02-27 日立建机株式会社 Work machine
US9322603B2 (en) 2010-06-18 2016-04-26 Hitachi Construction Machinery Co., Ltd. Work machine
CN101892894A (en) * 2010-06-24 2010-11-24 上海三一科技有限公司 Hydraulically-driven diesel radiating system and method thereof

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KR19990064447A (en) 1999-08-05
JPH11511530A (en) 1999-10-05
WO1997012131A1 (en) 1997-04-03
AU6872496A (en) 1997-04-17
DE19535674A1 (en) 1997-03-27
BR9610697A (en) 1999-09-21
EP0852664A1 (en) 1998-07-15
CA2232642A1 (en) 1997-04-03
ZA967586B (en) 1997-03-10

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