CN111173888A - Flywheel device for torque limiting protection of vehicle - Google Patents
Flywheel device for torque limiting protection of vehicle Download PDFInfo
- Publication number
- CN111173888A CN111173888A CN202010028805.2A CN202010028805A CN111173888A CN 111173888 A CN111173888 A CN 111173888A CN 202010028805 A CN202010028805 A CN 202010028805A CN 111173888 A CN111173888 A CN 111173888A
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- China
- Prior art keywords
- friction
- flywheel device
- mass block
- mass
- connecting element
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 5
- 230000013011 mating Effects 0.000 claims abstract description 3
- 229910000639 Spring steel Inorganic materials 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/06—Gearings designed to allow relative movement between supports thereof without ill effects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
- F16H2035/103—Arrangements or devices for absorbing overload or preventing damage by overload with drive interruption by structural failure of overload preventing means, e.g. using shear pins
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
本发明公开一种车辆用扭矩限制保护的飞轮装置，一连接元件与两侧的质量块配合连接，第一质量块与连接元件之间增设装配压力元件，第二质量块与连接元件之间增设装配摩擦元件，当第一质量块与第二质量块发生相对旋转，压力元件提供力值，摩擦元件提供阻尼副，第二质量块分别与压力元件及摩擦元件的配合面产生摩擦力矩，该两个摩擦力矩之和为飞轮装置的极限传递扭矩。本发明的优点是限制过载扭矩输出，保护传动系统部件。
The invention discloses a flywheel device for vehicle torque limit protection. A connecting element is cooperatively connected with the mass blocks on both sides, an assembly pressure element is added between the first mass block and the connecting element, and an assembly pressure element is added between the second mass block and the connecting element. Assembling the friction element, when the first mass block and the second mass block rotate relative to each other, the pressure element provides the force value, the friction element provides the damping pair, and the second mass block generates friction torque with the mating surfaces of the pressure element and the friction element, respectively. The sum of the friction torques is the limit transmission torque of the flywheel device. The advantage of the present invention is to limit overload torque output and protect transmission system components.
Description
Technical Field
The present invention relates to a flywheel drive device, and more particularly to a flywheel drive device with torque limiting protection for a vehicle.
Background
Fig. 1 shows a schematic diagram of a conventional power transmission system, and a flywheel belongs to a component at the output end of an engine in a vehicle power assembly system, is the first key component for connecting the engine and a transmission system of a gearbox, has large inertia, and can play a role in reducing the vibration of the engine in a rotating process. In conventional vehicle design and manufacture, the flywheel is not required to have the function of limiting torque output in general by providing a clutch or other release mechanism to control the power output and interruption of the vehicle.
With the development of hybrid vehicles, the degree of automation of the vehicle is increasing, and the function of a conventional clutch, which is originally used to manually control power interruption to shift gears in a transmission, is eliminated, so that many manufacturers do not have to provide a conventional clutch component between the powertrain connecting the engine and the electric motor. However, the fact that no conventional clutch components are provided has proven to cause driveline component failure in the pre-development period of the main engine plant due to overload problems, which means that the limitations on torque output and protective requirements on driveline components are not reduced by the transition of the powertrain from a conventional internal combustion engine to a hybrid powertrain.
Conventional drive train components have therefore not been able to accommodate this demand, and it has become necessary to modify existing drive train components to accommodate the demands of new versions of hybrid drive trains. Under the background, in combination with the functional background that the traditional clutch is not applicable any more, the flywheel is used as the first vibration damping part for connecting the power system and the transmission system, and the functions of limiting torque output and protecting the transmission system are realized by modification by using the large inertia and the part manufacturing characteristics, so that the overload protection function of the clutch in a vehicle system is directly replaced. This is where the application needs to be focused on.
Disclosure of Invention
The invention aims to provide a flywheel device for torque limiting protection for a vehicle, which can limit torque output and protect a transmission system.
In order to solve the technical problems, the invention provides a flywheel device for torque limiting protection for a vehicle, wherein a connecting element is connected with mass blocks on two sides in a matching mode, a pressure element is additionally arranged between a first mass block and the connecting element, a friction element is additionally arranged between a second mass block and the connecting element, when the first mass block and the second mass block rotate relatively, the pressure element provides a force value, the friction element provides a damping pair, the second mass block respectively generates friction torque with the matching surfaces of the pressure element and the friction element, and the sum of the two friction torques is the limit transmission torque of the flywheel device. When the power system outputs torque, the torque is transmitted to the flywheel through the crankshaft of the engine, if the output torque exceeds the limit transmission torque of the flywheel, slipping is generated, and the torque transmitted to a subsequent transmission part does not exceed the limit transmission torque of the flywheel, so that the transmission system is protected.
One end of the pressure element is axially positioned through the connecting element, and the other end of the pressure element is matched and fixed with the first mass block.
One end of the friction element is axially positioned through the connecting element, and the other end of the friction element is matched and fixed with the second mass block.
The pressure element is one or more, the pressure element is a spring steel sheet which is formed by punching and has elasticity, the shape of the pressure element is circular, the outside of the pressure element is provided with teeth, or the inside of the pressure element is provided with teeth, or both the inside and the outside of the pressure element are provided with teeth, the pressure element has the characteristic of small force value attenuation, and different force values are generated due to different pressing heights.
The friction elements are one or more of annular structures with a plurality of ventilation grooves, and are internally toothed, externally toothed or both internally and externally toothed. The friction element is a high temperature resistant and wear resistant composite material. Debris is expelled from the ventilation slots in the direction of rotation as the material wears.
The connecting element is one or more, and the connecting element is a machined or stamped metal part which positions the pressure element and the friction element in the axial and radial directions.
The flywheel device is assembled in a riveting connection mode or a threaded connection mode.
The invention has the following advantages:
1) the invention realizes the necessary function of vehicle torque limitation without the layout of the traditional clutch, and protects the failure probability of transmission system parts under the overload torque working condition;
2) according to the limited space requirement of the power transmission system component, the torque limiting device is integrated in the flywheel, so that space is reserved for hybrid power systems such as a motor and the like, and the space and the cost of the whole vehicle development are reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic illustration of a present conventional drivetrain system;
FIG. 2 is a schematic representation of a powertrain system (exemplified by a hybrid powertrain system) in which the present invention is implemented;
FIG. 3 is a schematic view of the flywheel apparatus of the present invention assembled to a damper;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is a schematic view of a flywheel apparatus according to the present invention;
description of the figures
1-mass a; 2-a pressure element;
3-pin A; 4-a connecting element;
5-a friction element; 6-mass B;
7-pin B; 8-a shock absorber;
9-a conventional flywheel; 10-a flywheel;
11-a clutch; 12-a shift gear;
13-a differential; 14-a wheel;
15-an engine; 16-motor.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
FIG. 2 is a schematic representation of a powertrain system embodying the present invention; FIG. 3 is a schematic view of the flywheel apparatus of the present invention assembled to a damper; fig. 4 is an exploded view of fig. 3.
As shown in fig. 2-5, the present invention provides a flywheel device for torque limiting protection of a vehicle, wherein a connecting element 4 is connected with mass blocks a1 and B6 at two sides in a matching way, a pressure element 2 is additionally arranged between the mass block a1 and the connecting element 4, and a friction element 5 is additionally arranged between the mass block B6 and the connecting element 4. The masses A1, B6, the pressure element 4 and the friction element 5 form a stable frame structure through riveting and positioning of the connecting elements 4. The mass a1 is fixed to the connecting member 4 such that the mass B6 slides relative to the connecting member 4 when subjected to a certain rotational moment. Fig. 5 shows a structural schematic diagram of the present invention from the perspective of the direction of the transmission, when the mass a1 and the mass B6 rotate relatively, the pressure element 2 provides a force value, the friction element 5 provides a damping pair, and the mass B6 generates friction torques with the mating surfaces of the pressure element 2 and the friction element 5, respectively, the sum of the two friction torques is the ultimate transfer torque of the flywheel device. When the power system outputs torque, the torque is transmitted to the flywheel through the crankshaft of the engine, if the output torque exceeds the limit transmission torque of the flywheel, slipping is generated, and the torque transmitted to a subsequent transmission part does not exceed the limit transmission torque of the flywheel, so that the transmission system is protected.
One end of the pressure element 2 is axially positioned by the connecting element 4, and the other end is fixed in cooperation with the mass A1.
One end of the friction element 5 is axially positioned by the connecting element 4, and the other end is fixed in cooperation with the mass B6.
The pressure element 2 is riveted by the connecting element 4, a certain working space is reserved, in the range of the working space, the pressure element 2 has certain pressure, the pressure is transmitted to the friction element 5 through the matched mass block B6, and at the moment, the friction element 5 can bear certain static friction moment.
The pressure element 2 is one or more than one pressure element, the pressure element 2 is a stamped elastic spring steel sheet, the shape of the spring steel sheet is circular, the outer part of the spring steel sheet is provided with teeth, or the inner part of the spring steel sheet is provided with teeth, or both the inner part and the outer part of the spring steel sheet are provided with teeth, the pressure element has the characteristic of small force value attenuation, and different force values are generated due to different pressing heights.
The friction elements 5 are one or more of annular structures with a plurality of ventilation grooves, and are internally toothed, externally toothed or both internally and externally toothed. The friction element 5 is a high temperature and wear resistant composite material. Debris is expelled from the ventilation slots in the direction of rotation as the material wears.
The connecting element 4 is one or more, and the connecting element 4 is a machined or stamped metal part that positions the pressure element 2 and the friction element 5 in the axial and radial directions.
The flywheel device is assembled in a riveting connection mode or a threaded connection mode.
In the assembly process of the device, in order to ensure the positioning accuracy, a pin A3 and a pin B7 are designed. Wherein: the pin A3 plays a temporary auxiliary positioning role in the assembly process, positioning holes are arranged at the same radial and angle positions of the outer circles in the mass A1 and the mass B6, the pin A3 is installed in the assembly process, and the pin A3 is removed through an auxiliary clamp after the installation is finished. The pin B7 plays a permanent positioning role in assembly, positioning holes are formed in the positions of the mass B6 and the outer circle of the shock absorber 8 in the same radial and angle positions, and the pin B7 is installed through an auxiliary tool in final assembly.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028805.2A CN111173888A (en) | 2020-01-11 | 2020-01-11 | Flywheel device for torque limiting protection of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028805.2A CN111173888A (en) | 2020-01-11 | 2020-01-11 | Flywheel device for torque limiting protection of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111173888A true CN111173888A (en) | 2020-05-19 |
Family
ID=70654657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010028805.2A Withdrawn CN111173888A (en) | 2020-01-11 | 2020-01-11 | Flywheel device for torque limiting protection of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111173888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879452A (en) * | 2021-02-09 | 2021-06-01 | 华域动力总成部件系统(上海)有限公司 | Multi-piece torque limiter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19729679A1 (en) * | 1997-07-11 | 1999-01-14 | Mannesmann Sachs Ag | Flywheel arrangement especially for vehicles, with primary and secondary mass |
| US20020046916A1 (en) * | 2000-10-25 | 2002-04-25 | Mannesmann Sachs Ag | Torsion damping mechanism with auxiliary mass |
| CN201714904U (en) * | 2009-09-15 | 2011-01-19 | 浙江吉利控股集团有限公司 | Bidirectional inequal moment damping device for hybrid power transmission system |
| CN102454720A (en) * | 2010-11-05 | 2012-05-16 | 爱信化工株式会社 | Torque limiter |
| KR20120128488A (en) * | 2011-05-17 | 2012-11-27 | 현대자동차주식회사 | Dual mass flywheel |
| US20150362025A1 (en) * | 2014-06-11 | 2015-12-17 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Hybrid automotive transmission arrangement |
| CN105422733A (en) * | 2015-12-16 | 2016-03-23 | 湖南三一路面机械有限公司 | Torsion damper and engineering vehicle |
| CN211737877U (en) * | 2020-01-11 | 2020-10-23 | 华域动力总成部件系统(上海)有限公司 | Flywheel device for torque limiting protection of vehicle |
-
2020
- 2020-01-11 CN CN202010028805.2A patent/CN111173888A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19729679A1 (en) * | 1997-07-11 | 1999-01-14 | Mannesmann Sachs Ag | Flywheel arrangement especially for vehicles, with primary and secondary mass |
| US20020046916A1 (en) * | 2000-10-25 | 2002-04-25 | Mannesmann Sachs Ag | Torsion damping mechanism with auxiliary mass |
| CN201714904U (en) * | 2009-09-15 | 2011-01-19 | 浙江吉利控股集团有限公司 | Bidirectional inequal moment damping device for hybrid power transmission system |
| CN102454720A (en) * | 2010-11-05 | 2012-05-16 | 爱信化工株式会社 | Torque limiter |
| KR20120128488A (en) * | 2011-05-17 | 2012-11-27 | 현대자동차주식회사 | Dual mass flywheel |
| US20150362025A1 (en) * | 2014-06-11 | 2015-12-17 | Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg | Hybrid automotive transmission arrangement |
| CN105422733A (en) * | 2015-12-16 | 2016-03-23 | 湖南三一路面机械有限公司 | Torsion damper and engineering vehicle |
| CN211737877U (en) * | 2020-01-11 | 2020-10-23 | 华域动力总成部件系统(上海)有限公司 | Flywheel device for torque limiting protection of vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879452A (en) * | 2021-02-09 | 2021-06-01 | 华域动力总成部件系统(上海)有限公司 | Multi-piece torque limiter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200519 |
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| WW01 | Invention patent application withdrawn after publication |