CN211423201U - Range-extending type electric automobile coupling - Google Patents
Range-extending type electric automobile coupling Download PDFInfo
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- CN211423201U CN211423201U CN201922111193.9U CN201922111193U CN211423201U CN 211423201 U CN211423201 U CN 211423201U CN 201922111193 U CN201922111193 U CN 201922111193U CN 211423201 U CN211423201 U CN 211423201U
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Abstract
The utility model discloses an increase form electric automobile shaft coupling mainly includes second grade main damping system and one-level idle damping system, wherein idle damping system mainly include damping disc, outer dish hub, interior flower building dish hub and inner spring, center through the spline between inner spline dish hub and the outer dish hub, but can rotate certain angle relatively, the inner spring inlays the special-shaped inslot of inner spline dish hub and outer dish hub, through damping disc, position circle A, position circle B, belleville spring II, the riveting of spacing pin for belleville spring I, inner spline dish hub and outer dish hub take place to rotate relatively and extrude the inner spring, produce idle damping torque. The utility model has the advantages that: the utility model discloses make full use of the spare part of traditional car, realized more easily under current industry system, alleviated traditional car and to the costly defect of electric automobile transition, had the realistic meaning to promoting the range extending electric automobile industry, had very big market prospect.
Description
Technical Field
The utility model relates to a key spare part field of car mainly is an increase form electric automobile shaft coupling.
Background
The global petroleum resource is increasingly exhausted, the environment is increasingly worsened, and the green development concept that 'green water green mountain is the Jinshan Yinshan' proposed by the country is adopted, the traditional fuel oil automobile becomes a historical product, and the new energy automobile becomes a necessary trend for the development of the new-era traffic field. Under the support of national policies and capital of governments at all levels, the domestic new energy automobile industry makes great progress at present, but the power battery of the pure electric automobile has low energy density and short service life of the battery, so that the driving range is short, and the battery is the biggest bottleneck of the development of the current pure electric automobile. The driving mileage of the pure electric vehicle cannot meet the actual requirement of people, and under the condition, the range-extended electric vehicle can eliminate the anxiety of people on mileage insufficiency, becomes a choice for breaking through the mileage requirement of the new energy vehicle, and better meets the current actual requirement.
The range extender system is adopted by the range extender electric vehicle to improve the driving range, and the range extender, as a vehicle-mounted power supply system, is a core component of the range extender electric vehicle and generally consists of an engine and a generator. As one of the electric vehicles, noise and vibration are very important evaluation indexes. In recent years, with the increasingly strict requirements of national laws and regulations on the NVH performance of electric vehicles and the increasingly high requirements of customers on the riding comfort of the whole vehicles, the development and the application of vibration reduction and noise reduction in range extenders are very critical, and therefore, what connection mode is adopted to connect an engine and a generator becomes a critical step. The connection mode that adopts at present adopts the elastic coupling structure to connect, and its axial dimension of this connection mode is great has taken up more spaces, and has increased its manufacturing cost to the higher installation process requirement of location, and need to match corresponding elastic coupling to different power, is difficult to obtain the popularization in the market.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide an increase form electric automobile shaft coupling, produce the torsion shaft coupling that can adapt to different power and increase the different operating modes of journey ware system, play the damping and fall the effect of making an uproar and realize the standardization, the universalization of essential element.
The purpose of the utility model is accomplished through following technical scheme. An extended range type electric automobile coupling mainly comprises a secondary main damping system and a primary idle damping system, wherein the idle damping system mainly comprises a damping disc, an outer disc hub, an inner spline hub and an inner spring, the inner spline hub and the outer disc hub are centered through splines and can rotate a certain angle relatively, the inner spring is embedded into special-shaped grooves of the inner spline hub and the outer disc hub, the damping disc, a positioning ring A, a positioning ring B, a disc spring II and a disc spring I are riveted through a limiting pin, and the inner spline hub and the outer disc hub rotate relatively to extrude the inner spring to generate idle damping torque; when the inner spline hub and the outer spline hub relatively rotate to the limit positions, the side faces of the matching splines of the inner spline hub and the outer spline hub are in contact, and the clutch enters the working state of the main vibration reduction system; the main vibration damping system mainly comprises a driven disc, a vibration damping spring A, a vibration damping spring B, a gasket, a positioning ring A, a positioning ring B, a positioning ring C, a disk spring II, a disk spring I, an outer disk hub and a limit nail, wherein the driven disc and the vibration damping disc are riveted into a whole through a bearing pin and the outer disk hub, windows for installing the main vibration damping spring are uniformly distributed on the vibration damping disc in a relative rotation manner, a plurality of groups of windows are correspondingly arranged on the driven disc, the outer disk hub is provided with corresponding spring notches, a first-stage vibration damping spring A is arranged in a plurality of large windows and notches, a second-stage vibration damping spring C is arranged in a plurality of small windows and small notches, when the main vibration damping system works, the first-stage vibration damping spring A arranged in the large windows is compressed, and when the outer disk hub and the vibration damping disc rotate at a certain angle relatively, the side edge of the small notch of the outer disk hub begins to contact with the, all damping springs work together.
A certain gap exists between the inner spline hub and the outer hub to play the roles of automatic compensation and centering.
And a damping spring B is sleeved in the damping spring A and used for increasing the rigidity and the torque of the damping spring A.
The utility model has the advantages that: the utility model discloses make full use of the spare part of traditional car, realized more easily under current industry system, alleviated traditional car and to the costly defect of electric automobile transition, had the realistic meaning to promoting the range extending electric automobile industry, had very big market prospect. The torsional coupling is adopted to connect the engine and the generator, and the torsional coupling connection scheme has the advantages of compact structure, high strength, long service life and easiness in realization, and more importantly, can adapt to range extender systems with different powers and can effectively play a role in vibration reduction and noise reduction.
1. The device can adapt to different power range extender systems and torsion couplers under different working conditions;
2. by adopting the structure, the standardization and the generalization of main parts are easy to realize;
3. and a three-level vibration damping structure is adopted, so that better buffering and vibration damping effects are achieved.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the P-P of fig. 1 according to the present invention.
Fig. 3 is a schematic structural diagram of the idle damping system of the present invention.
Description of reference numerals: damping disc 1, position circle A2, outer hub 3, interior flower building hub 4, inner spring 5, position circle B6, belleville spring II7, belleville spring I8, driven plate 9, damping spring A10, damping spring B11, packing ring 12, stop pin 13, main damping system 14, idle speed damping system 15, position circle C16, damping spring C17.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
as shown in the figure, the extended-range electric automobile coupling mainly comprises a secondary main damping system 14 and a primary idle damping system 15, wherein the idle damping system mainly comprises a damping disc 1, an outer disc hub 3, an inner spline hub 4 and an inner spring 5, wherein the damping disc 1, a positioning ring 2, the outer disc hub 3, the positioning ring and the like are all universal parts; the external shape of the internally splined hub 4 is also of standard dimensions, and the dimensions of the internal splines can be adjusted accordingly according to the dimensions of the input shaft of the gearbox.
In order to realize idle vibration reduction, the inner spline hub 4 and the outer hub 3 are centered through splines, but can rotate a certain angle relatively, the inner spring 5 is embedded into a special-shaped groove of the inner spline hub 4 and the outer hub 3, the inner spline hub 4 and the outer hub 3 are riveted through a limiting pin by the vibration reduction disc 1, a positioning ring A2, a positioning ring B6, a disc spring II7 and a disc spring I8, the inner spline hub 4 and the outer hub 3 rotate relatively to extrude the inner spring 5, and idle vibration reduction torque is generated so as to meet the requirement of the conventional range extender system on idle vibration reduction. A certain gap exists between the inner spline hub 4 and the outer hub 3 to play the roles of automatic compensation and centering. When the inner spline hub 4 and the outer hub 8 rotate relatively to the limit position, the matching spline sides of the inner spline hub and the outer spline hub are in contact, and the clutch enters the working state of the main damping system.
The main damping system 14 mainly comprises a driven disc 9, a damping disc 1, a damping spring A10, a damping spring B11, a washer 12, a positioning ring A2, a positioning ring B6, a positioning ring C16, a disc spring II7, a disc spring I8, an outer disc hub 3 and a limit nail 13, wherein the damping disc 1, the washer 12, the positioning ring, the outer disc hub 3, the limit nail 13 and the like are all universal parts; the main damping spring also has various standardized designs, namely the same external dimension, but different diameters and effective turns of the steel wire, and certainly different rigidity.
In order to realize secondary main vibration reduction, the driven disc 9 and the vibration reduction disc 1 are riveted with the outer disc hub 3 into a whole through a bearing pin, 4 groups of windows for installing main vibration reduction springs are uniformly distributed on the vibration reduction disc 1 in a relative rotation mode of the outer disc hub 3, 4 groups of windows are correspondingly arranged on the driven disc 9, the outer disc hub 3 is provided with corresponding spring notches, one-level vibration reduction springs A10 (one-level main vibration reduction springs) are installed in a plurality of large windows (notches), and a secondary vibration reduction spring C17 (secondary main vibration reduction spring) is installed in 4 small windows (notches). When the main damping system works, firstly, the primary damping spring A10 arranged on 4 large windows is compressed, when the outer hub 3 and the damping disc 1 rotate for a certain angle relatively, the side edge of the small notch of the outer hub 3 starts to contact with the secondary damping spring C17, and all the damping springs work together. The damping spring A10 is sleeved with the damping spring B11 for increasing the rigidity and the torque of the damping spring A10 so as to increase the rigidity and the torque of the damping spring A, and impact in the power transmission process of the torsion coupler is effectively buffered, so that the NVH performance and the durability and reliability of the range extender system are improved. In the relative rotation process of the outer hub 3 and the damping disc 1, due to the action of the disc spring, the damping washer, the driven disc and the damping disc generate certain friction damping torque for damping vibration.
The rigidity of the main damping system and the magnitude of the main damping moment are mainly determined by the rigidity and the ultimate load of the main damping spring, and the design basis is the matching requirement of the range extender system. Through system matching, the rigidity and the number of the springs are reasonably and effectively selected, so that the torsion coupling achieves the torsion damping effect, and the NVH performance of the range extender system is improved.
The main contents of the utility model are: based on the parts of the traditional automobile, a method of structural optimization and autonomous design is adopted to adapt to range extenders with different powers. On one hand, the axial size and the weight of the torsional coupling are reduced as much as possible in the limited space of the range extender system, and meanwhile, the main structure of the torsional coupling is kept stable, the main parts are universal, and sufficient installation space is reserved for elastic elements with different mechanical properties; on the other hand, on the premise that a torsional vibration damping system of the torsional coupling assembly is not changed, requirements of range extenders with different powers on torsional rigidity, idle vibration damping moment and maximum vibration damping moment can be met by replacing different mounting connecting plates, so that vibration and noise of the range extender system are greatly improved, and the problem that the yield of single variety cannot reach economic batch due to the fact that the traditional elastic couplings need to be matched one by one is avoided; high cost of production and management of various products.
The utility model discloses the torsional coupling assembly who uses, its main damping moment of torsion coverage is 50 ~ 700N.m, and idle damping moment of torsion is 0-50N.m, can adapt to the present overwhelming majority and increase journey ware system.
The utility model discloses a concrete design thinking is: the torsional coupling assembly has three-stage damping function, wherein the three-stage damping function comprises first-stage idling damping and second-stage main damping, a large torsional angle is adopted, and the total damping angle can reach more than 14 degrees, so that the requirement of the extended range electric automobile on comfort is met; the inside split type structure of dish hub that adopts of torsional coupling, when two axes have relative skew, can play the effect of automatic compensation, aligning. By adopting the structure, the effects of buffering and vibration reduction can be achieved, the shaft is prevented from generating torsional deformation and fracture due to instantaneous torsional stress, impact load and alternating load can be borne, and the NVH performance and the durability and reliability of the range extender system are improved.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (3)
1. The utility model provides an increase form electric automobile shaft coupling which characterized in that: the idle speed vibration reduction system mainly comprises a secondary main vibration reduction system (14) and a primary idle speed vibration reduction system (15), wherein the idle speed vibration reduction system mainly comprises a vibration reduction disc (1), an outer disc hub (3), an inner spline disc hub (4) and an inner spring (5), the inner spline disc hub (4) and the outer disc hub (3) are centered through splines and can rotate a certain angle relatively, the inner spring (5) is embedded into special-shaped grooves of the inner spline disc hub (4) and the outer disc hub (3), the inner spring (1), a positioning ring A (2), a positioning ring B (6), a disc spring II (7) and a disc spring I (8) are riveted through a limiting pin, and the inner spline disc hub (4) and the outer disc hub (3) rotate relatively to extrude the inner spring (5) to generate idle speed vibration reduction torque; when the inner spline hub (4) and the outer spline hub (3) rotate relatively to the limit position, the side faces of the matching splines of the inner spline hub and the outer spline hub are in contact, and the clutch enters the working state of the main damping system; the main damping system (14) mainly comprises a driven plate (9), a damping plate (1), a damping spring A (10), a damping spring B (11), a positioning ring A (2), a positioning ring B (6), a positioning ring C (16), a disc spring II (7), a disc spring I (8), an outer disc hub (3) and a limit nail (13), wherein the driven plate (9) and the damping plate (1) are riveted into a whole with the outer disc hub (3) through a bearing pin, windows for installing the main damping spring are uniformly distributed on the damping plate (1) in a relative rotation mode of the outer disc hub (3), a plurality of groups of windows are formed on the driven plate (9), the outer disc hub (3) is provided with corresponding spring notches, the first-level damping springs A (10) are installed in a plurality of large windows and the notches, the second-level damping springs C (17) are installed in a plurality of small windows and the small notches, and when the main damping system works, the first-level springs A (10) installed in the large windows are compressed, when the outer hub (3) and the damping disc (1) rotate for a certain angle relatively, the side edge of the small notch of the outer hub (3) starts to contact with a second-stage damping spring C (17), and all the damping springs work together.
2. The extended range electric vehicle coupling of claim 1, wherein: a certain gap exists between the inner spline hub (4) and the outer spline hub (3) to play the roles of automatic compensation and centering.
3. The extended range electric vehicle coupling of claim 1, wherein: and a damping spring B (11) is sleeved in the damping spring A (10) and used for increasing the rigidity and the torque of the damping spring A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111193.9U CN211423201U (en) | 2019-11-30 | 2019-11-30 | Range-extending type electric automobile coupling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922111193.9U CN211423201U (en) | 2019-11-30 | 2019-11-30 | Range-extending type electric automobile coupling |
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| CN211423201U true CN211423201U (en) | 2020-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066519A (en) * | 2023-04-06 | 2023-05-05 | 浙江铁流离合器股份有限公司 | Torsion limiting vibration damper with variable damping four-stage vibration damping |
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2019
- 2019-11-30 CN CN201922111193.9U patent/CN211423201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066519A (en) * | 2023-04-06 | 2023-05-05 | 浙江铁流离合器股份有限公司 | Torsion limiting vibration damper with variable damping four-stage vibration damping |
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