WO2015168965A1 - Electromagnetic eddy-current damping speed-limiting device for preventing engine run-away accident - Google Patents
Electromagnetic eddy-current damping speed-limiting device for preventing engine run-away accident Download PDFInfo
- Publication number
- WO2015168965A1 WO2015168965A1 PCT/CN2014/077884 CN2014077884W WO2015168965A1 WO 2015168965 A1 WO2015168965 A1 WO 2015168965A1 CN 2014077884 W CN2014077884 W CN 2014077884W WO 2015168965 A1 WO2015168965 A1 WO 2015168965A1
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- WIPO (PCT)
- Prior art keywords
- limiting device
- speed limiting
- main shaft
- stator
- damping speed
- Prior art date
Links
- 238000013016 damping Methods 0.000 title claims abstract description 43
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 239000010703 silicon Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 27
- 230000005284 excitation Effects 0.000 claims description 22
- 239000003921 oil Substances 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the present invention relates to the field of marine engine main engine technology, and more particularly to an engine prevention system.
- Electromagnetic eddy current damping speed limit device for flying accidents. BACKGROUND OF THE INVENTION At present, there are several types of accidents for preventing a ship from flying in the world. 1.
- the method of adjusting the amount of oil supply When the ship encounters a sudden drop in the load of the main engine (the propeller is broken, the propeller is broken, and the large propeller causes the ship's propeller to be emptied) ⁇ Use the main oil pump governor to reduce the fuel supply and prevent the accident of the host vehicle, but the method is unstable and reliable.
- automatic oil cut method When the main engine speed exceeds 15% of the rated speed, the oil line valve will automatically close to prevent the main engine accident from further worsening.
- the disadvantage is that the speeding accident has occurred at this time, and the pipeline still has a small amount after the oil line valve is closed. The oil is available. 3. Artificial oil cut-off method. When a speeding accident occurs, the on-duty personnel manually cut off the oil circuit. The disadvantage is that the speeding accident has occurred and the reaction speed is slow. All of the above methods can achieve certain effects, but for various reasons, the flying accident of the ship's main engine often occurs, so the accident is a problem in the industry. Summary of the invention
- the problem to be solved by the present invention is to provide an electromagnetic eddy current damping speed limiting device for preventing an accident of an engine flying to overcome the defects that are prone to occur in the prior art and which are difficult to avoid.
- the present invention provides an electromagnetic eddy current damping speed limiting device for preventing an engine flying accident, comprising a load main shaft, a power supply host, a main engine output shaft, and a damping speed limiting device main shaft, for detecting the damping limit.
- the deceleration device comprises a casing, two stators, a rotor and an excitation coil, the stator, the rotor and the excitation coil are installed in the casing, and the two stators are respectively installed On both sides of the rotor, the excitation wire is fixed on the stator, the stator and the rotor have a gap, and the rotor is fixedly mounted coaxially with the main shaft of the damping speed limit device;
- the detector is disposed on a side of the main shaft of the damp
- the speed limiting device further includes two water-cooling sealing covers, the water-cooling sealing cover is fixed on the inner wall of the stator, and the water-cooling sealing cover cooperates with the stator to form a water-cooled seal for cooling the speed reducing device.
- the water-cooled sealing cover In the chamber, one end of the water-cooled sealed chamber is connected to the water-cooled water inlet, and the other end is connected to the water-cooled water outlet.
- the speed limiting device further includes two oil-cooling sealing covers, the oil-cooling sealing cover is fixed on the outer wall of the stator, and the oil-cooling sealing cover is matched with the stator to form cooling for the deceleration device.
- the oil-cooled sealed chamber has one end connected to the oil-cooled water inlet and the other end connected to the oil-cooled water outlet.
- the inner wall of the stator is provided with a plurality of heat conducting ribs, the heat conducting rib and the water
- the cold seal chamber corresponds.
- housing and the stator are fixed by screws.
- the electromagnetic eddy current damping speed limiting device for preventing an engine flying accident of the invention has a simple structure, and the eddy current electromagnetic damping loading method is used to control the speed of the main engine to be too fast, so as to prevent the occurrence of an accident of the main engine of the ship, and the effect is remarkable.
- FIG. 1 is a schematic structural view of an electromagnetic eddy current damping speed limiting device for preventing an engine flying accident according to the present invention
- Figure 2 is a partial enlarged view of A in Figure 1;
- Fig. 3 is a structural schematic view of a stator in an electromagnetic eddy current damping speed limiting device for preventing an accident of an engine.
- 1 is the load spindle
- 2 is the main engine
- 3 is the main engine output shaft
- 4 is the damping speed limit device main shaft
- 5 is the detector
- 6 is the casing
- 7 is the stator
- 8 is the rotor
- 9 is the excitation coil
- 10 is oil-cooled sealing cover
- 11 is water-cooled water inlet
- 12 is oil-cooled water inlet
- 13 is water-cooled water outlet
- 14 oil-cooled water outlet
- 15 is water-cooled sealing cover
- 16 is water-cooled sealing chamber
- 17 is oil-cooled sealing Room
- 18 is the thermal conductive rib
- 19 is the automatic control device
- 20 is the controllable rectification device
- 21 is the manual controller.
- an electromagnetic eddy current damping speed limiting device for preventing an engine flying accident of the present invention includes a load spindle 1, a power supply host 2, a main engine output shaft 3, a damping speed limiting device main shaft 4, a detector 5 for detecting the rotation speed of the main shaft 4 of the damping speed limiting device and a speed reducing device for decelerating the main shaft 4 of the damping speed limiting device; the speed reducing device is mounted on the main shaft 4 of the damping speed limiting device in cooperation with a bearing
- the left end of the main shaft 4 of the damping speed limiting device is connected to the load main shaft 1, and the right end is connected with the main output shaft 3
- the right end of the main engine output shaft 3 is connected to the main machine 2; the left end of the load main shaft 1 is externally connected to the impeller of the ship;
- the deceleration device comprises a casing 6, two stators 7, a rotor 8 and an excitation wire ⁇ 9, The stator 7, the rotor 8 and
- the speed limiting device further includes two water-cooling sealing covers 15, which are fixed on the inner wall of the stator 7, and the water-cooling sealing cover 15 cooperates with the stator 7 to form A water-cooling sealed chamber 16 for cooling the deceleration device, the water-cooling sealed chamber 16 end is in communication with the water-cooled water inlet 11 and the other end is in communication with the water-cooled water outlet 13.
- the electromagnetic eddy current brake generates a large amount of heat when dampering the host of the high-powered ship, mainly the excitation wire ⁇ 9 and the stator 7, so the present invention is provided with the water-cooling sealing cover 15 to take away the heat above the stator 7 more quickly. , so that the electromagnetic eddy current brake can reduce the damping of the ship's main engine.
- the speed limiting device further includes two oil-cooling sealing covers 10, the oil-cooling sealing cover 10 is fixed on an outer wall of the stator 7, and the oil-cooling sealing cover 10 is matched with the stator 7.
- An oil-cooled sealed chamber 17 for cooling the decelerating device is formed, the oil-cooled sealed chamber 17-end is in communication with the oil-cooled water inlet 12, and the other end is in communication with the oil-cooled water outlet 14.
- the electromagnetic eddy current brake generates a large amount of heat when dampering the host of the high-powered ship, mainly the excitation wire ⁇ 9 and the stator 7, so the present invention is provided with the oil-cooled sealing cover 17 to quickly push the excitation wire ⁇ 9 The heat is taken away, so that the electromagnetic eddy current brake can dampen the deceleration of the ship's main engine.
- the inner wall of the stator 7 is provided with a plurality of heat conducting ribs 18, and the heat conducting ribs 18 correspond to the water-cooling sealing chamber 16.
- the speed limiting device also includes a control circuit including an automatic control device
- the silicon-controlled rectifier device 20 When the speed data of the detector 5 is greater than the manually set maximum speed or acceleration, its output gives a signal to the thyristor rectifier 20,
- the silicon-controlled rectifier device 20 is in an operating state;
- the manual controller 21 is connected to the thyristor rectifier device 20, and the manual controller 21 manually controls the thyristor rectifier device 20 when the manual
- the automatic control device 19 automatically fails, and according to the manual control operation, outputs a signal to the thyristor rectifier device 20 to operate and adjust the magnitude of the output DC current;
- the silicon rectifying device 20 is connected to the excitation line ⁇ 9, and the thyristor rectifying device 20 is composed of a rectifier transformer and a thyristor half-controlled bridge rectifier
- the thyristor rectifying device 20 is configured to change the AC voltage supplied by the alternator or the AC grid into an adjustable DC voltage, and to apply a DC current to the excitation line ⁇ 9, and according to the automatic control device 19
- the working principle of the present invention is: when the engine 2 rotational speed reaches the upper limit value during the running of the ship, the detector 5 detects the signal, and the automatic control device 19 inputs the direct current to the thyristor rectifier device 20, and the thyristor rectifier device 20 After receiving the DC power supply of the automatic control device 19, the rectifier is amplified by the thyristor rectifying device 20, and then the current is input to the excitation line ⁇ 9. Thereafter, the rotor 8 and the stator 7 generate eddy current electromagnetic, so that the rotor 8 and the damper speed limiting device main shaft 4 At the same time, damping is generated to limit the host 2 to continue to accelerate, preventing the ship host from flying.
- the automatic control device 19 stops supplying the DC power to the thyristor rectifying device 20, and the thyristor rectifying device 20 stops the excitation line ⁇ 9.
- the rotor 8 and the stator 7 disappear electromagnetically, and the main engine 2 of the ship operates normally.
- the electromagnetic eddy current damping speed limiting device for preventing an engine flying accident of the invention has a simple structure, and the eddy current electromagnetic damping loading method is used to control the speed of the main engine to be too fast, so as to prevent the accident of the main engine flying accident of the ship.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Eletrric Generators (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Disclosed is an electromagnetic eddy-current damping speed-limiting device for preventing an engine run-away accident, comprising a load main shaft (1), a main engine (2) for providing power, a main engine output shaft (3), a damping speed-limiting device main shaft (4), a detector (5) for detecting a rotation speed of the damping speed-limiting device main shaft (4), a speed reducing device for reducing the speed of the damping speed-limiting device main shaft (4), and a control circuit, wherein the speed reducing device and a bearing are matched to be installed on the damping speed-limiting device main shaft (4); the left end of the damping speed-limiting device main shaft (4) is connected to the load main shaft (1) and the right end thereof is connected to the main engine output shaft (3), and the right end of the main engine output shaft (3) is connected to the main engine (2); the left end of the load main shaft (1) is externally connected to an impeller of a ship; the speed reducing device comprises a housing (6), two stators (7), a rotor (8) and exciting coils (9); and the control circuit comprises an automatic control apparatus (19), a silicon-controlled rectifying apparatus (20) and a manual controller. The speed-limiting device has a simple structure and can prevent a run-away accident of the main engine of the ship.
Description
防止发动机飞车事故的电磁涡流阻尼限速装置 技术领域 本发明涉及船舶发动机主机技术领域，尤其涉及一种防止发动机 说 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of marine engine main engine technology, and more particularly to an engine prevention system.
飞车事故的电磁涡流阻尼限速装置。 背景技术 目前世界上防止船舶主机飞车事故， 有以下几种： 1、 供油量调 节法： 船舶航行时碰到主机负载骤减（推进器断轴、 掉螺旋桨、 大风 浪引起船舶螺旋桨放空）时釆用主机油泵调速器减少供油量， 防止主 机飞车事故的发生， 但是方法不稳定可靠。 2书、 自动断油法： 当主机 转速超过额定转速的 15%时油路阀门自动关闭， 防止主机飞车事故进 一步恶化， 缺点是此时飞车事故已经发生， 油路阀门关闭后管路仍有 少量的油料可供。 3、 人工断油法， 当飞车事故发生， 由值班人员人 工切断油路， 缺点是飞车事故已发生， 反应速度慢。 以上几种方法都 能达到一定的效果， 但因种种原因， 船舶主机的飞车事故常有发生， 所以该事故是业界的一种难题。 发明内容 Electromagnetic eddy current damping speed limit device for flying accidents. BACKGROUND OF THE INVENTION At present, there are several types of accidents for preventing a ship from flying in the world. 1. The method of adjusting the amount of oil supply: When the ship encounters a sudden drop in the load of the main engine (the propeller is broken, the propeller is broken, and the large propeller causes the ship's propeller to be emptied)主机Use the main oil pump governor to reduce the fuel supply and prevent the accident of the host vehicle, but the method is unstable and reliable. 2 book, automatic oil cut method: When the main engine speed exceeds 15% of the rated speed, the oil line valve will automatically close to prevent the main engine accident from further worsening. The disadvantage is that the speeding accident has occurred at this time, and the pipeline still has a small amount after the oil line valve is closed. The oil is available. 3. Artificial oil cut-off method. When a speeding accident occurs, the on-duty personnel manually cut off the oil circuit. The disadvantage is that the speeding accident has occurred and the reaction speed is slow. All of the above methods can achieve certain effects, but for various reasons, the flying accident of the ship's main engine often occurs, so the accident is a problem in the industry. Summary of the invention
(一） 要解决的技术问题 (1) Technical problems to be solved
本发明要解决的问题是提供一种防止发动机飞车事故的电磁涡 流阻尼限速装置， 以克服现有技术中飞车事故易发生， 且难以避免的 缺陷。 SUMMARY OF THE INVENTION The problem to be solved by the present invention is to provide an electromagnetic eddy current damping speed limiting device for preventing an accident of an engine flying to overcome the defects that are prone to occur in the prior art and which are difficult to avoid.
(二）技术方案 (2) Technical plan
为解决所述技术问题，本发明提供一种防止发动机飞车事故的电 磁涡流阻尼限速装置，包括负载主轴、提供动力的主机、主机输出轴、 阻尼限速装置主轴、用于检测所述阻尼限速装置主轴转速的检测器和 用于给所述阻尼限速装置主轴减速的减速装置；所述减速装置与轴承
配合安装在所述阻尼限速装置主轴上；所述阻尼限速装置主轴左端与 所述负载主轴连接， 右端与所述主机输出轴连接， 所述主机输出轴右 端与所述主机连接； 所述负载主轴的左端外接船舶的叶轮； 所述减速 装置包括壳体、 两个定子、 转子和激励线圏， 所述定子、 转子和激励 线圏安装在所述壳体内， 两个所述定子分别安装在所述转子的两侧， 所述激励线圏固定在所述定子上，所述定子和所述转子有一定距离的 间隙， 所述转子与所述阻尼限速装置主轴同轴固定安装； 所述检测器 设置在所述阻尼限速装置主轴一侧； 限速装置还包括一个控制电路， 所述控制电路包括自动控制装置、 可控硅整流装置和手动控制器；所 述自动控制装置与所述检测器连接，所述自动控制装置用于处理来自 所述检测器检测到所述阻尼限速装置主轴的转速或者加速度与设定 最高转速或者加速度进行对比；所述手动控制器与所述可控硅整流装 置连接， 所述手动控制器用人工的方式控制所述可控硅整流装置；所 述可控硅整流装置与所述激励线圏连接，所述可控硅整流装置用于将 交流发电机或交流电网供给的交流电压变成可调直流电压，给所述激 磁线圏通可调直流电流，并根据所述自动控制装置或者所述手动控制 器的信号进行工作和通以直流电流大小；所述检测器通过所述自动控 制装置、 可控硅整流装置与所述激励线圏连接。 In order to solve the technical problem, the present invention provides an electromagnetic eddy current damping speed limiting device for preventing an engine flying accident, comprising a load main shaft, a power supply host, a main engine output shaft, and a damping speed limiting device main shaft, for detecting the damping limit. a detector for the spindle speed of the speed device and a speed reducing device for decelerating the spindle of the damping speed limit device; the speed reducing device and the bearing Cooperating with the main shaft of the damper speed limiting device; the left end of the damper speed limiting device is connected to the load main shaft, the right end is connected to the main output shaft, and the right end of the main output shaft is connected with the main body; The left end of the load spindle is externally connected to the impeller of the ship; the deceleration device comprises a casing, two stators, a rotor and an excitation coil, the stator, the rotor and the excitation coil are installed in the casing, and the two stators are respectively installed On both sides of the rotor, the excitation wire is fixed on the stator, the stator and the rotor have a gap, and the rotor is fixedly mounted coaxially with the main shaft of the damping speed limit device; The detector is disposed on a side of the main shaft of the damping speed limiting device; the speed limiting device further includes a control circuit, the control circuit includes an automatic control device, a thyristor rectifier device, and a manual controller; the automatic control device and the device Detector connection, the automatic control device is configured to process the rotational speed or acceleration from the detector to detect the spindle of the damper speed limiting device Comparing the maximum speed or acceleration; the manual controller is connected to the thyristor rectifier, the manual controller manually controls the thyristor rectifier; the thyristor rectifier and the Exciting a wire 圏 connection, the thyristor rectifying device is configured to change an alternating current voltage supplied by the alternator or the alternating current grid into an adjustable direct current voltage, and the adjustable exciting current is passed to the exciting line, and according to the automatic control The signal of the device or the manual controller is operated and passed through a direct current current; the detector is connected to the excitation coil by the automatic control device and the thyristor rectifier.
进一步， 所述限速装置还包括两个水冷密封盖， 所述水冷密封盖 固定在所述定子内壁上，所述水冷密封盖与所述定子配合形成用于给 所述减速装置冷却的水冷密封室，所述水冷密封室一端与水冷进水口 连通， 另一端与水冷出水口连通。 Further, the speed limiting device further includes two water-cooling sealing covers, the water-cooling sealing cover is fixed on the inner wall of the stator, and the water-cooling sealing cover cooperates with the stator to form a water-cooled seal for cooling the speed reducing device. In the chamber, one end of the water-cooled sealed chamber is connected to the water-cooled water inlet, and the other end is connected to the water-cooled water outlet.
进一步， 所述限速装置还包括两个油冷密封盖， 所述油冷密封盖 固定在所述定子外壁上，所述油冷密封盖与所述定子配合形成用于给 所述减速装置冷却的油冷密封室，所述油冷密封室一端与油冷进水口 连通， 另一端与油冷出水口连通。 Further, the speed limiting device further includes two oil-cooling sealing covers, the oil-cooling sealing cover is fixed on the outer wall of the stator, and the oil-cooling sealing cover is matched with the stator to form cooling for the deceleration device. The oil-cooled sealed chamber has one end connected to the oil-cooled water inlet and the other end connected to the oil-cooled water outlet.
进一步， 所述定子内壁设置有若干导热筋， 所述导热筋与所述水
冷密封室相对应。 Further, the inner wall of the stator is provided with a plurality of heat conducting ribs, the heat conducting rib and the water The cold seal chamber corresponds.
进一步， 所述壳体与所述定子用螺钉固定。 Further, the housing and the stator are fixed by screws.
(三）有益效果 (3) Beneficial effects
本发明的防止发动机飞车事故的电磁涡流阻尼限速装置，结构简 单， 用涡流电磁阻尼加载法控制主机的转速过快， 达到防止船舶主机 飞车事故的发生， 效果显著。 The electromagnetic eddy current damping speed limiting device for preventing an engine flying accident of the invention has a simple structure, and the eddy current electromagnetic damping loading method is used to control the speed of the main engine to be too fast, so as to prevent the occurrence of an accident of the main engine of the ship, and the effect is remarkable.
附图说明 DRAWINGS
图 1为本发明一种防止发动机飞车事故的电磁涡流阻尼限速装 置的结构示意图； 1 is a schematic structural view of an electromagnetic eddy current damping speed limiting device for preventing an engine flying accident according to the present invention;
图 2为图 1中 A的局部放大图； Figure 2 is a partial enlarged view of A in Figure 1;
图 3为本发明一种防止发动机飞车事故的电磁涡流阻尼限速装 置中定子的结构示意图。 Fig. 3 is a structural schematic view of a stator in an electromagnetic eddy current damping speed limiting device for preventing an accident of an engine.
图中， 1为负载主轴， 2为主机， 3为主机输出轴， 4为阻尼限速 装置主轴， 5为检测器， 6为壳体， 7为定子， 8为转子， 9为激励线 圏， 10为油冷密封盖， 11为水冷进水口， 12为油冷进水口， 13为水 冷出水口， 14为油冷出水口， 15为水冷密封盖， 16为水冷密封室， 17为油冷密封室， 18为导热筋， 19为自动控制装置， 20为可控整流 装置， 21为手动控制器。 In the figure, 1 is the load spindle, 2 is the main engine, 3 is the main engine output shaft, 4 is the damping speed limit device main shaft, 5 is the detector, 6 is the casing, 7 is the stator, 8 is the rotor, 9 is the excitation coil, 10 is oil-cooled sealing cover, 11 is water-cooled water inlet, 12 is oil-cooled water inlet, 13 is water-cooled water outlet, 14 is oil-cooled water outlet, 15 is water-cooled sealing cover, 16 is water-cooled sealing chamber, 17 is oil-cooled sealing Room, 18 is the thermal conductive rib, 19 is the automatic control device, 20 is the controllable rectification device, and 21 is the manual controller.
具体实施方式 detailed description
下面结合附图和实施例，对本发明的具体实施方式作进一步详细 描述。 以下实施例用于说明本发明， 但不用来限制本发明的范围。 The specific embodiments of the present invention are further described in detail below with reference to the drawings and embodiments. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
如图 1至图 3所示，本发明的一种防止发动机飞车事故的电磁涡 流阻尼限速装置， 包括负载主轴 1、 提供动力的主机 2、 主机输出轴 3、 阻尼限速装置主轴 4、 用于检测所述阻尼限速装置主轴 4转速的 检测器 5和用于给所述阻尼限速装置主轴 4减速的减速装置；所述减 速装置与轴承配合安装在所述阻尼限速装置主轴 4上；所述阻尼限速 装置主轴 4左端与所述负载主轴 1连接，右端与所述主机输出轴 3连
接， 所述主机输出轴 3右端与所述主机 2连接； 所述负载主轴 1的左 端外接船舶的叶轮； 所述减速装置包括壳体 6、 两个定子 7、 转子 8 和激励线圏 9 , 所述定子 7、 转子 8和激励线圏 9安装在所述壳体 6 内， 两个所述定子 7分别安装在所述转子 8的两侧， 所述激励线圏 9 固定在所述定子 7上， 所述定子 7和所述转子 8有一定距离的间隙， 所述转子 8与所述阻尼限速装置主轴 4同轴固定安装； 所述检测器 5 设置在所述阻尼限速装置主轴 4一侧，所述检测器 5通过自动控制装 置 19、 可控硅整流装置 20与所述激励线圏 9连接。 所述壳体 6与所 述定子 7用螺钉固定。 As shown in FIG. 1 to FIG. 3, an electromagnetic eddy current damping speed limiting device for preventing an engine flying accident of the present invention includes a load spindle 1, a power supply host 2, a main engine output shaft 3, a damping speed limiting device main shaft 4, a detector 5 for detecting the rotation speed of the main shaft 4 of the damping speed limiting device and a speed reducing device for decelerating the main shaft 4 of the damping speed limiting device; the speed reducing device is mounted on the main shaft 4 of the damping speed limiting device in cooperation with a bearing The left end of the main shaft 4 of the damping speed limiting device is connected to the load main shaft 1, and the right end is connected with the main output shaft 3 The right end of the main engine output shaft 3 is connected to the main machine 2; the left end of the load main shaft 1 is externally connected to the impeller of the ship; the deceleration device comprises a casing 6, two stators 7, a rotor 8 and an excitation wire 圏9, The stator 7, the rotor 8 and the excitation coil 9 are mounted in the housing 6, two stators 7 are respectively mounted on both sides of the rotor 8, and the excitation coil 9 is fixed to the stator 7 The stator 7 and the rotor 8 have a certain distance of clearance, and the rotor 8 is coaxially fixedly mounted with the damper speed limiting device main shaft 4; the detector 5 is disposed on the damper speed limiting device main shaft 4 On one side, the detector 5 is connected to the excitation coil 9 by an automatic control device 19 and a thyristor rectifier 20. The housing 6 and the stator 7 are screwed.
如图 2所示， 所述限速装置还包括两个水冷密封盖 15 , 所述水 冷密封盖 15固定在所述定子 7内壁上，所述水冷密封盖 15与所述定 子 7配合形成用于给所述减速装置冷却的水冷密封室 16 , 所述水冷 密封室 16—端与水冷进水口 11连通，另一端与水冷出水口 13连通。 电磁涡流剎车在阻尼大功率船舶主机时会产生大量的热量，主要是激 励线圏 9和定子 7 , 所以本发明设置有所述水冷密封盖 15能更快的 把定子 7上面的热量带走， 以便电磁涡流剎车对船舶主机进行阻尼减 速的工作。 As shown in FIG. 2, the speed limiting device further includes two water-cooling sealing covers 15, which are fixed on the inner wall of the stator 7, and the water-cooling sealing cover 15 cooperates with the stator 7 to form A water-cooling sealed chamber 16 for cooling the deceleration device, the water-cooling sealed chamber 16 end is in communication with the water-cooled water inlet 11 and the other end is in communication with the water-cooled water outlet 13. The electromagnetic eddy current brake generates a large amount of heat when dampering the host of the high-powered ship, mainly the excitation wire 圏9 and the stator 7, so the present invention is provided with the water-cooling sealing cover 15 to take away the heat above the stator 7 more quickly. , so that the electromagnetic eddy current brake can reduce the damping of the ship's main engine.
如图 2所示， 所述限速装置还包括两个油冷密封盖 10 , 所述油 冷密封盖 10固定在所述定子 7外壁上，所述油冷密封盖 10与所述定 子 7配合形成用于给所述减速装置冷却的油冷密封室 17 , 所述油冷 密封室 17—端与油冷进水口 12连通，另一端与油冷出水口 14连通。 电磁涡流剎车在阻尼大功率船舶主机时会产生大量的热量，主要是激 励线圏 9和定子 7 , 所以本发明设置有所述油冷密封盖 17能更快的 把激励线圏 9上面的热量带走， 以便电磁涡流剎车对船舶主机进行阻 尼减速的工作。 As shown in FIG. 2, the speed limiting device further includes two oil-cooling sealing covers 10, the oil-cooling sealing cover 10 is fixed on an outer wall of the stator 7, and the oil-cooling sealing cover 10 is matched with the stator 7. An oil-cooled sealed chamber 17 for cooling the decelerating device is formed, the oil-cooled sealed chamber 17-end is in communication with the oil-cooled water inlet 12, and the other end is in communication with the oil-cooled water outlet 14. The electromagnetic eddy current brake generates a large amount of heat when dampering the host of the high-powered ship, mainly the excitation wire 圏9 and the stator 7, so the present invention is provided with the oil-cooled sealing cover 17 to quickly push the excitation wire 圏9 The heat is taken away, so that the electromagnetic eddy current brake can dampen the deceleration of the ship's main engine.
如图 3所示， 所述定子 7内壁设置有若干导热筋 18 , 所述导热 筋 18与所述水冷密封室 16相对应。
限速装置还包括一个控制电路，所述控制电路包括自动控制装置As shown in FIG. 3, the inner wall of the stator 7 is provided with a plurality of heat conducting ribs 18, and the heat conducting ribs 18 correspond to the water-cooling sealing chamber 16. The speed limiting device also includes a control circuit including an automatic control device
19、 可控硅整流装置 20和手动控制器 21 ; 所述自动控制装置 19与 所述检测器 5连接， 所述自动控制装置 19用于处理来自检测器 5检 测到所述阻尼限速装置主轴 4的转速或者加速度与设定最高转速或 者加速度进行对比， 当检测器 5的转速数据大于人工设定最高限制转 速或者加速度时， 它的输出给出信号传给可控硅整流装置 20 , 使可 控硅整流装置 20处于工作状态；所述手动控制器 21与所述可控硅整 流装置 20连接，所述手动控制器 21用人工的方式控制所述可控硅整 流装置 20, 当所述手动控制器 21人工介入启动时， 所述自动控制装 置 19自动失灵， 并根据人工控制操作， 输出信号给所述可控硅整流 装置 20 , 使其工作和调节输出直流电流的大小； 所述可控硅整流装 置 20与所述激励线圏 9连接，所述可控硅整流装置 20由整流变压器 和可控硅半控桥式整流电路组成， 所述可控硅整流装置 20用于将交 流发电机或交流电网供给的交流电压变成可调直流电压，给激磁线圏 9通可调直流电流， 并根据自动控制装置 19或者手动控制器 21的信 号进行工作和通以直流电流大小。 19. The thyristor rectifying device 20 and the manual controller 21; the automatic control device 19 is connected to the detector 5, and the automatic control device 19 is configured to process the spindle from the detector 5 detecting the damper speed limiting device The speed or acceleration of 4 is compared with the set maximum speed or acceleration. When the speed data of the detector 5 is greater than the manually set maximum speed or acceleration, its output gives a signal to the thyristor rectifier 20, The silicon-controlled rectifier device 20 is in an operating state; the manual controller 21 is connected to the thyristor rectifier device 20, and the manual controller 21 manually controls the thyristor rectifier device 20 when the manual When the controller 21 is manually engaged, the automatic control device 19 automatically fails, and according to the manual control operation, outputs a signal to the thyristor rectifier device 20 to operate and adjust the magnitude of the output DC current; The silicon rectifying device 20 is connected to the excitation line 圏9, and the thyristor rectifying device 20 is composed of a rectifier transformer and a thyristor half-controlled bridge rectifier The thyristor rectifying device 20 is configured to change the AC voltage supplied by the alternator or the AC grid into an adjustable DC voltage, and to apply a DC current to the excitation line 圏9, and according to the automatic control device 19 or manually The signal of controller 21 operates and is sized with a direct current.
本发明的工作原理是：在船舶行驶过程中发动机的主机 2转速达 到上限值时， 检测器 5检测到信号， 自动控制装置 19向可控硅整流 装置 20输入直流电， 可控硅整流装置 20接收到自动控制装置 19的 直流电源后经可控硅整流装置 20的整流放大后向激励线圏 9输入电 流， 之后， 转子 8和定子 7产生涡流电磁， 使转子 8和阻尼限速装置 主轴 4同时产生阻尼， 限制主机 2继续加速， 防止船舶主机发生飞车 现象。 The working principle of the present invention is: when the engine 2 rotational speed reaches the upper limit value during the running of the ship, the detector 5 detects the signal, and the automatic control device 19 inputs the direct current to the thyristor rectifier device 20, and the thyristor rectifier device 20 After receiving the DC power supply of the automatic control device 19, the rectifier is amplified by the thyristor rectifying device 20, and then the current is input to the excitation line 圏9. Thereafter, the rotor 8 and the stator 7 generate eddy current electromagnetic, so that the rotor 8 and the damper speed limiting device main shaft 4 At the same time, damping is generated to limit the host 2 to continue to accelerate, preventing the ship host from flying.
当检测器 5接收到船舶的主机 2转速低于设定下限转速的信号时， 自动控制装置 19停止向可控硅整流装置 20输直流电源，同时可控硅整 流装置 20停止向激励线圏 9输送电流， 转子 8和定子 7电磁消失， 船舶 的主机 2正常运行。
本发明的防止发动机飞车事故的电磁涡流阻尼限速装置，结构简 单， 用涡流电磁阻尼加载法控制主机的转速过快， 达到防止船舶主机 飞车事故的发生。 When the detector 5 receives the signal that the speed of the main engine 2 of the ship is lower than the set lower limit rotation speed, the automatic control device 19 stops supplying the DC power to the thyristor rectifying device 20, and the thyristor rectifying device 20 stops the excitation line 圏9. When the current is delivered, the rotor 8 and the stator 7 disappear electromagnetically, and the main engine 2 of the ship operates normally. The electromagnetic eddy current damping speed limiting device for preventing an engine flying accident of the invention has a simple structure, and the eddy current electromagnetic damping loading method is used to control the speed of the main engine to be too fast, so as to prevent the accident of the main engine flying accident of the ship.
综上所述， 上述实施方式并非是本发明的限制性实施方式， 凡本 领域的技术人员在本发明的实质内容的基础上所进行的修饰或者等 效变形， 均在本发明的技术范畴。
In view of the above, the above-described embodiments are not intended to be limiting embodiments of the present invention, and modifications or equivalent modifications made by those skilled in the art based on the substance of the present invention are within the technical scope of the present invention.
Claims
1、 一种防止发动机飞车事故的电磁涡流阻尼限速装置， 其特征 在于： 包括负载主轴 （1)、 提供动力的主机（2)、 主机输出轴（3)、 阻尼限速装置主轴 （4)、 用于检测所述阻尼限速装置主轴（4) 转速 的检测器（ 5 )和用于给所述阻尼限速装置主轴（ 4 )减速的减速装置； 所述减速装置与轴承配合安装在所述阻尼限速装置主轴 （4) 上； 所 述阻尼限速装置主轴（4)左端与所述负载主轴（1 )连接， 右端与所 述主机输出轴（3)连接， 所述主机输出轴（3)右端与所述主机（2) 连接； 所述负载主轴（1 ) 的左端外接船舶的叶轮； 所述减速装置包 括壳体（6)、 两个定子（7)、 转子（8) 和激励线圏 （9), 所述定子 (7)、 转子（8) 和激励线圏 （9)安装在所述壳体（6) 内， 两个所 述定子（7)分别安装在所述转子（8) 的两侧， 所述激励线圏 （9) 固定在所述定子（7) 上， 所述定子（7) 和所述转子（8) 有一定距 离的间隙， 所述转子（8)与所述阻尼限速装置主轴（4)同轴固定安 装； 所述检测器（5)设置在所述阻尼限速装置主轴（4)一侧； 限速 装置还包括一个控制电路， 所述控制电路包括自动控制装置（19)、 可控硅整流装置（ 20 )和手动控制器（ 21 ); 所述自动控制装置（ 19 ) 与所述检测器（5)连接， 所述自动控制装置（19)用于处理来自所 述检测器（5)检测到所述阻尼限速装置主轴（4)的转速或者加速度 与设定最高转速或者加速度进行对比； 所述手动控制器（21 )与所述 可控硅整流装置（20)连接， 所述手动控制器（21 )用人工的方式控 制所述可控硅整流装置（20); 所述可控硅整流装置（20) 与所述激 励线圏 （9)连接， 所述可控硅整流装置（20)用于将交流发电机或 交流电网供给的交流电压变成可调直流电压， 给所述激磁线圏 （9) 通可调直流电流， 并根据所述自动控制装置（19)或者所述手动控制 器（21 ) 的信号进行工作和通以直流电流大小； 所述检测器（5) 通 过所述自动控制装置（19)、 可控硅整流装置（20) 与所述激励线圏
(9)连接。 1. An electromagnetic eddy current damping speed limiting device to prevent engine overrun accidents, characterized by: including a load spindle (1), a main engine that provides power (2), a main engine output shaft (3), and a damping speed limiting device spindle (4) , a detector (5) for detecting the rotation speed of the main shaft (4) of the damping speed limiting device and a deceleration device for decelerating the main shaft (4) of the damping speed limiting device; the deceleration device is installed in conjunction with a bearing. On the main shaft (4) of the damping speed limiting device; the left end of the main shaft (4) of the damping speed limiting device is connected to the load main shaft (1), and the right end is connected to the main engine output shaft (3), and the main engine output shaft (3) 3) The right end is connected to the main engine (2); the left end of the load main shaft (1) is externally connected to the impeller of the ship; the reduction device includes a housing (6), two stators (7), a rotor (8) and an excitation The coil (9), the stator (7), the rotor (8) and the excitation coil (9) are installed in the housing (6), and the two stators (7) are respectively installed in the rotor ( On both sides of 8), the excitation coil (9) is fixed on the stator (7), there is a certain distance between the stator (7) and the rotor (8), and the rotor (8) and The main shaft (4) of the damping speed limiting device is coaxially fixedly installed; the detector (5) is arranged on one side of the main shaft (4) of the damping speed limiting device; the speed limiting device also includes a control circuit, and the control circuit It includes an automatic control device (19), a silicon controlled rectifier device (20) and a manual controller (21); the automatic control device (19) is connected to the detector (5), and the automatic control device (19) Used to compare the rotation speed or acceleration of the main shaft (4) of the damping speed limiting device detected by the detector (5) with the set maximum rotation speed or acceleration; the manual controller (21) and the controllable speed limiter The silicon rectifier device (20) is connected, and the manual controller (21) manually controls the silicon controlled rectifier device (20); the silicon controlled rectifier device (20) is connected to the excitation coil (9 ) connection, the thyristor rectifier device (20) is used to convert the AC voltage supplied by the alternator or AC power grid into an adjustable DC voltage, and pass an adjustable DC current to the excitation coil (9), and according to The signal from the automatic control device (19) or the manual controller (21) operates and passes the DC current; the detector (5) passes through the automatic control device (19) and the silicon controlled rectifier device (20) with the excitation coil (9)Connect.
2、 根据权利要求 1所述的防止发动机飞车事故的电磁涡流阻尼 限速装置， 其特征在于： 所述限速装置还包括两个水冷密封盖（15), 所述水冷密封盖（15) 固定在所述定子（7) 内壁上， 所述水冷密封 盖（15) 与所述定子（7) 配合形成用于给所述减速装置冷却的水冷 密封室（16), 所述水冷密封室（16)—端与水冷进水口 （11)连通， 另一端与水冷出水口 （13)连通。 2. The electromagnetic eddy current damping speed limiting device for preventing engine overrun accidents according to claim 1, characterized in that: the speed limiting device further includes two water-cooled sealing covers (15), and the water-cooled sealing covers (15) are fixed On the inner wall of the stator (7), the water-cooling sealing cover (15) cooperates with the stator (7) to form a water-cooling sealing chamber (16) for cooling the deceleration device. The water-cooling sealing chamber (16) ) - one end is connected to the water-cooling water inlet (11), and the other end is connected to the water-cooling water outlet (13).
3、 根据权利要求 1所述的防止发动机飞车事故的电磁涡流阻尼 限速装置， 其特征在于： 所述限速装置还包括两个油冷密封盖（10), 所述油冷密封盖（10) 固定在所述定子（7) 外壁上， 所述油冷密封 盖（10) 与所述定子（7) 配合形成用于给所述减速装置冷却的油冷 密封室（17), 所述油冷密封室 （17)—端与油冷进水口 （12)连通， 另一端与油冷出水口 （14)连通。 3. The electromagnetic eddy current damping speed limiting device for preventing engine overrun accidents according to claim 1, characterized in that: the speed limiting device further includes two oil-cooling sealing covers (10), and the oil-cooling sealing cover (10) ) is fixed on the outer wall of the stator (7), and the oil-cooling sealing cover (10) cooperates with the stator (7) to form an oil-cooling sealing chamber (17) for cooling the deceleration device. One end of the cold seal chamber (17) is connected with the oil cooling water inlet (12), and the other end is connected with the oil cooling water outlet (14).
4、 根据权利要求 2所述的防止发动机飞车事故的电磁涡流阻尼 限速装置， 其特征在于： 所述定子（7)内壁设置有若干导热筋（18), 所述导热筋 （18) 与所述水冷密封室 （16)相对应。 4. The electromagnetic eddy current damping speed limiting device for preventing engine overrun accidents according to claim 2, characterized in that: the inner wall of the stator (7) is provided with a number of heat-conducting ribs (18), and the heat-conducting ribs (18) are connected to the The water-cooled sealed chamber (16) corresponds.
5、 根据权利要求 1至 4任一项所述的防止发动机飞车事故的电 磁涡流阻尼限速装置， 其特征在于： 所述壳体（6) 与所述定子（7) 用螺钉固定。
5. The electromagnetic eddy current damping speed limiting device for preventing engine overrun accidents according to any one of claims 1 to 4, characterized in that: the housing (6) and the stator (7) are fixed with screws.
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| CN201410186072.XA CN103967608B (en) | 2014-05-05 | 2014-05-05 | Prevent the electromagnetic eddy speed-limiting damping device of engine mounted longitudinally racing accident |
| CN201410186072.X | 2014-05-05 |
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| WO2015168965A1 true WO2015168965A1 (en) | 2015-11-12 |
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| CN103683645B (en) * | 2013-12-16 | 2016-06-15 | 陕西通运专用汽车集团有限公司 | Electric eddy current brake for heavy mining truck |
-
2014
- 2014-05-05 CN CN201410186072.XA patent/CN103967608B/en not_active Expired - Fee Related
- 2014-05-20 WO PCT/CN2014/077884 patent/WO2015168965A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5874843A (en) * | 1981-10-28 | 1983-05-06 | Hino Motors Ltd | Overrun preventor for engine |
| CN1210202A (en) * | 1998-07-29 | 1999-03-10 | 大连机车车辆厂 | Method and device for controlling runaway of diesel engine |
| US7693642B2 (en) * | 2006-10-06 | 2010-04-06 | Deere & Company | Anti-overspeed system for vehicle and associated method |
| CN202007708U (en) * | 2011-02-01 | 2011-10-12 | 潍柴动力股份有限公司 | Runaway protection equipment and system for diesel engine |
| CN102678351A (en) * | 2012-05-14 | 2012-09-19 | 西华大学 | Intelligent diesel engine runaway protector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103967608B (en) | 2016-08-24 |
| CN103967608A (en) | 2014-08-06 |
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