WO2019029059A1 - Control method for automatically adjusting nominal traction point height of locomotive - Google Patents

Control method for automatically adjusting nominal traction point height of locomotive Download PDF

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Publication number
WO2019029059A1
WO2019029059A1 PCT/CN2017/113545 CN2017113545W WO2019029059A1 WO 2019029059 A1 WO2019029059 A1 WO 2019029059A1 CN 2017113545 W CN2017113545 W CN 2017113545W WO 2019029059 A1 WO2019029059 A1 WO 2019029059A1
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Prior art keywords
locomotive
value
height
nominal
relationship
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PCT/CN2017/113545
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French (fr)
Chinese (zh)
Inventor
王威
曹富智
柳占宇
刘霞
代兴军
付莹
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中车大连机车车辆有限公司
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Priority to AU2017391886A priority Critical patent/AU2017391886B2/en
Priority to NZ749171A priority patent/NZ749171B2/en
Publication of WO2019029059A1 publication Critical patent/WO2019029059A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/15—Vehicle, aircraft or watercraft design

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  • the invention relates to the technical field of locomotive wheel adhesion, in particular to a method for automatically adjusting the nominal traction point height of a locomotive.
  • the locomotive connects the bogie and the vehicle body through the tow bar for power transmission.
  • the height of the intersection of the locomotive towbar extension line and the bogie centerline is the nominal towing point height of the locomotive.
  • the nominal towing point height the higher the locomotive adhesion utilization rate, and the empty wheel idling is not easy to occur.
  • the height a of the intersection of the locomotive drawbar extension line and the bogie centerline is the nominal towing point height of the locomotive.
  • the rubber sleeves at both ends of the tow bar are respectively connected with the vehicle body and the bogie. After the mechanical connection is installed, the traction angle cannot be adjusted. As the wheel wears, the height of the nominal towing point of the locomotive changes continuously, which is not conducive to the adhesion of the locomotive, and thus the wheels are idling.
  • the invention provides a control method for automatically adjusting the nominal towing point height of a locomotive.
  • the wheel diameter and control device automatically adjusts the control method of the drawbar angle.
  • the control method steps are as follows:
  • the beneficial effect of the invention is: by automatically detecting the relationship value S between the nominal height initial value M of the drawbar and the wheel diameter D, calculating whether the current wheel diameter d conforms to the relationship value curve S, and adjusting the frame traction seat expansion device to raise or lower the traction
  • the rod enables the nominal height of the locomotive towbar to match the wheel-rail adhesion in real time. Improve the locomotive adhesion utilization and reduce the idling of the locomotive wheels.
  • Figure 1 shows the installation structure of the locomotive drawbar.
  • FIG. 3 is a flow chart of a method for automatically adjusting the nominal towing point height of a locomotive according to the present invention.
  • the locomotive control system of the present invention detects the current wheel diameter of the locomotive by detecting parameters such as the traveling speed of the locomotive and the speed of the traction motor, and determines the nominal height value of the towing rod, and is towed by adjusting the frame.
  • the telescopic device raises or lowers the towbar so that the nominal height of the locomotive towbar matches the wheel-rail adhesion in real time.
  • control method for automatically adjusting the nominal traction point height of the locomotive the control method steps are as follows:

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

A control method for automatically adjusting a nominal traction point height of a locomotive. The relationship value curve S between a locomotive wheel diameter D, a telescopic height H of a traction base and a nominal height initial value M of a traction rod is set to be H=MD; after having detected a current diameter d of the wheel of the locomotive, a system compares same with the relationship value curve S and automatically adjusts the telescopic value h of the traction base, so as to enable the current nominal height of a traction rod to coincide with value M in the set curve, improving the adhesion utilization rate of the locomotive, and reducing locomotive wheel spin.

Description

自动调节机车名义牵引点高度的控制方法Method for automatically adjusting the nominal traction point height of a locomotive 技术领域Technical field
本发明涉及机车车轮黏着力技术领域，具体涉及一种自动调节机车名义牵引点高度的控制方法。The invention relates to the technical field of locomotive wheel adhesion, in particular to a method for automatically adjusting the nominal traction point height of a locomotive.
背景技术Background technique
机车通过牵引杆连接转向架与车体,进行动力的传递。机车牵引杆延长线与转向架中心线相交点高度为机车名义牵引点高度，通常，名义牵引点高度越低，机车黏着利用率越高，不容易发生空车轮空转。The locomotive connects the bogie and the vehicle body through the tow bar for power transmission. The height of the intersection of the locomotive towbar extension line and the bogie centerline is the nominal towing point height of the locomotive. Generally, the lower the nominal towing point height, the higher the locomotive adhesion utilization rate, and the empty wheel idling is not easy to occur.
如图1所示，机车牵引杆延长线与转向架中心线相交点高度a为机车名义牵引点高度。牵引杆两端橡胶套分别与车体和转向架连接，该机械连接安装后不能调整牵引角度，随着车轮磨耗，机车名义牵引点高度不断变化，不利于机车黏着发挥，进而导致车轮空转。As shown in Figure 1, the height a of the intersection of the locomotive drawbar extension line and the bogie centerline is the nominal towing point height of the locomotive. The rubber sleeves at both ends of the tow bar are respectively connected with the vehicle body and the bogie. After the mechanical connection is installed, the traction angle cannot be adjusted. As the wheel wears, the height of the nominal towing point of the locomotive changes continuously, which is not conducive to the adhesion of the locomotive, and thus the wheels are idling.
发明内容Summary of the invention
本发明提供一种自动调节机车名义牵引点高度的控制方法,针对机车车轮在运用过程中磨耗造成轮径不断变化，机车名义牵引点高度不能始终处于最佳位置的问题，提出一种可自动检测轮径并控制装置自动调整牵引杆角度的控制方法。The invention provides a control method for automatically adjusting the nominal towing point height of a locomotive. The problem that the wheel diameter is constantly changing due to the wear of the locomotive wheel during the operation process, and the nominal traction point height of the locomotive cannot always be in the optimal position, and an automatic detection is proposed. The wheel diameter and control device automatically adjusts the control method of the drawbar angle.
本发明所采用的技术方案是自动调节机车名义牵引点高度的控制方法，设定机车车轮直径D、牵引座伸缩高度H与牵引杆名义高度初始值M关系值曲线S为H＝MD，当检测机车当前机车车轮直径d后，系统与关系值曲线S对比，自动调整牵引座伸缩值h，使当前牵引杆名义高度与设定曲线M值重合，其控制方法步骤如下：The technical scheme adopted by the invention is a method for automatically adjusting the height of the nominal traction point of the locomotive, and setting the relationship between the diameter D of the locomotive wheel, the height H of the traction seat and the initial value of the nominal height of the tow bar M is H=MD, when detecting After the current locomotive wheel diameter d of the locomotive, the system compares with the relationship value curve S, and automatically adjusts the retractable value h of the traction yoke so that the nominal height of the current drawbar coincides with the set curve M value. The control method steps are as follows:
1.1，开始；1.1, start;
1.2，设定牵引杆名义高度初始值M；1.2, setting the nominal height of the drawbar initial value M;
1.3，设定M值与机车车轮直径D的关系曲线S；1.3, setting the relationship between the M value and the diameter D of the locomotive wheel;
1.4，检测机车电机转速n；1.4, detecting the motor speed of the locomotive n;
1.5，计算机车当前车轮直径d；1.5, the current wheel diameter d of the computer car;
1.6，判断d值是否符合关系曲线S，是则返回步骤1.4，否则进入1.7；1.6, determine whether the d value meets the relationship curve S, if yes, return to step 1.4, otherwise enter 1.7;
1.7，构架牵引座伸缩装置动作。1.7, frame traction seat expansion device action.
本发明的有益效果是：通过自动检测牵引杆名义高度初始值M与轮径D的关系值曲线S，计算当前轮径d是否符合关系值曲线S，调节构架牵引座伸缩装置抬高或降低牵引杆，使机车牵引杆名义高度与轮轨黏着实时匹配。提高机车黏着利用率，降低机车车轮空转。 The beneficial effect of the invention is: by automatically detecting the relationship value S between the nominal height initial value M of the drawbar and the wheel diameter D, calculating whether the current wheel diameter d conforms to the relationship value curve S, and adjusting the frame traction seat expansion device to raise or lower the traction The rod enables the nominal height of the locomotive towbar to match the wheel-rail adhesion in real time. Improve the locomotive adhesion utilization and reduce the idling of the locomotive wheels.
附图说明DRAWINGS
图1为机车牵引杆安装结构图。Figure 1 shows the installation structure of the locomotive drawbar.
图2为牵引杆名义高度初始值M与轮径D的关系曲线S。2 is a graph S of the nominal height initial value M of the drawbar and the wheel diameter D.
图3为本发明自动调节机车名义牵引点高度的控制方法流程图。FIG. 3 is a flow chart of a method for automatically adjusting the nominal towing point height of a locomotive according to the present invention.
具体实施方式Detailed ways
现结合附图1至附图3对发明做进一步的说明，本发明的机车控制系统检测机车行驶速度、牵引电机转速等参数计算出机车当前轮径，判断牵引杆名义高度数值，通过调节构架牵引座伸缩装置抬高或降低牵引杆，使机车牵引杆名义高度与轮轨黏着实时匹配。The invention will be further described with reference to FIG. 1 to FIG. 3. The locomotive control system of the present invention detects the current wheel diameter of the locomotive by detecting parameters such as the traveling speed of the locomotive and the speed of the traction motor, and determines the nominal height value of the towing rod, and is towed by adjusting the frame. The telescopic device raises or lowers the towbar so that the nominal height of the locomotive towbar matches the wheel-rail adhesion in real time.
设定机车车轮直径D、牵引座伸缩高度H与牵引杆名义高度初始值M关系值曲线S如图2所示，当检测机车当前机车车轮直径d后，系统与关系值曲线S对比，自动调整牵引座伸缩值h，使当前牵引杆名义高度与设定曲线M值重合。Set the relationship between the diameter D of the locomotive wheel, the telescopic height H of the traction seat and the initial value of the nominal height of the tow bar. As shown in Fig. 2, when the current wheel diameter d of the locomotive is detected, the system is automatically adjusted with the relationship value curve S. The retractable value h of the traction seat is such that the nominal height of the current drawbar coincides with the set value M value.
关系值曲线S线可以归纳为H＝MD.因为在实际运用过程中,当轮径d值在变化时,系统根据对应关系调整h的高度,由于机车车下部件限界是一个范围,故该S直线的正比例关系在一定范围内允许有一定的偏差,这样的结果是在实际运用中,反而提升了系统工作的可靠性。The S-line of the relationship value curve can be summarized as H=MD. Because in the actual operation process, when the wheel diameter d value is changing, the system adjusts the height of h according to the corresponding relationship. Since the limit of the lower part of the locomotive is a range, the S The positive proportional relationship of the straight line allows a certain deviation within a certain range. The result is that in practical use, the reliability of the system work is improved.
自动调节机车名义牵引点高度的控制方法，其控制方法步骤如下：The control method for automatically adjusting the nominal traction point height of the locomotive, the control method steps are as follows:
1.1，开始；1.1, start;
1.2，设定牵引杆名义高度初始值M；1.2, setting the nominal height of the drawbar initial value M;
1.3，设定M值与机车车轮直径D的关系曲线S；1.3, setting the relationship between the M value and the diameter D of the locomotive wheel;
1.4，检测机车电机转速n；1.4, detecting the motor speed of the locomotive n;
1.5，计算机车当前车轮直径d；1.5, the current wheel diameter d of the computer car;
1.6，判断d值是否符合关系曲线S，是则返回步骤1.4，否则进入1.7；1.6, determine whether the d value meets the relationship curve S, if yes, return to step 1.4, otherwise enter 1.7;
1.7，构架牵引座伸缩装置动作；结束。 1.7, frame traction seat expansion device action; end.

Claims (1)

  1. 自动调节机车名义牵引点高度的控制方法，其特征在于：设定机车车轮直径D、牵引座伸缩高度H与牵引杆名义高度初始值M关系值曲线S为H＝MD，当检测机车当前机车车轮直径d后，系统与关系值曲线S对比，自动调整牵引座伸缩值h，使当前牵引杆名义高度与设定曲线M值重合，其控制方法步骤如下：The method for automatically adjusting the nominal traction point height of the locomotive is characterized in that: setting the locomotive wheel diameter D, the traction seat expansion height H and the tow bar nominal height initial value M relationship value curve S is H=MD, when detecting the locomotive current locomotive wheel After the diameter d, the system compares with the relationship value curve S, and automatically adjusts the retractable value h of the traction seat so that the nominal height of the current drawbar coincides with the set curve M value. The control method steps are as follows:
    1.1，开始；1.1, start;
    1.2，设定牵引杆名义高度初始值M；1.2, setting the nominal height of the drawbar initial value M;
    1.3，设定M值与机车车轮直径D的关系曲线S；1.3, setting the relationship between the M value and the diameter D of the locomotive wheel;
    1.4，检测机车电机转速n；1.4, detecting the motor speed of the locomotive n;
    1.5，计算机车当前车轮直径d；1.5, the current wheel diameter d of the computer car;
    1.6，判断d值是否符合关系曲线S，是则返回步骤1.4，否则进入1.7；1.6, determine whether the d value meets the relationship curve S, if yes, return to step 1.4, otherwise enter 1.7;
    1.7，构架牵引座伸缩装置动作。 1.7, frame traction seat expansion device action.
PCT/CN2017/113545 2017-08-08 2017-11-29 Control method for automatically adjusting nominal traction point height of locomotive WO2019029059A1 (en)

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Application Number Priority Date Filing Date Title
AU2017391886A AU2017391886B2 (en) 2017-08-08 2017-11-29 Locomotive nominal drawing point height automatic adjustment control method
NZ749171A NZ749171B2 (en) 2017-08-08 2017-11-29 Control method for automatically adjusting nominal traction point height of locomotive

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CN201710668927.6A CN107650929A (en) 2017-08-08 2017-08-08 Automatically adjust the control method of locomotive name drawbar height
CN2017106689276 2017-08-08

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WO2001068430A2 (en) * 2000-03-15 2001-09-20 Neerman Consulting Passenger transport vehicle
EP1449736A1 (en) * 2003-02-19 2004-08-25 Elisabeth Layritz GmbH Reduced height locomotive

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CH624897A5 (en) * 1977-11-30 1981-08-31 Schweizerische Lokomotiv
CH638731A5 (en) * 1979-07-11 1983-10-14 Schweizerische Lokomotiv RAIL VEHICLE.
CN100484816C (en) * 2006-11-20 2009-05-06 南车株洲电力机车有限公司 Composition type draw gear of locomotive
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CN102756739A (en) * 2012-07-24 2012-10-31 南车资阳机车有限公司 B0+B0 shaft-type locomotive bogie
WO2014107861A1 (en) * 2013-01-10 2014-07-17 中国北车集团大同电力机车有限责任公司 Locomotive traction device, locomotive bogie and railway locomotive
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2093782U (en) * 1991-06-04 1992-01-22 陕西省岐山县机械厂 Traction coupling for trailers
WO2001068430A2 (en) * 2000-03-15 2001-09-20 Neerman Consulting Passenger transport vehicle
EP1449736A1 (en) * 2003-02-19 2004-08-25 Elisabeth Layritz GmbH Reduced height locomotive

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CN107650929A (en) 2018-02-02
NZ749171A (en) 2021-11-26
AU2017391886B2 (en) 2019-08-01
AU2017391886A1 (en) 2019-02-28

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