CN115898731B - Idle speed starting and stopping automobile isolator - Google Patents
Idle speed starting and stopping automobile isolator Download PDFInfo
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- CN115898731B CN115898731B CN202310084776.5A CN202310084776A CN115898731B CN 115898731 B CN115898731 B CN 115898731B CN 202310084776 A CN202310084776 A CN 202310084776A CN 115898731 B CN115898731 B CN 115898731B
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- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- 230000001050 lubricating effect Effects 0.000 description 1
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- 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
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Abstract
本发明涉及汽车单向器领域，具体地说，涉及一种怠速启停用汽车单向器。针对现有技术中的单向器在用于怠速启停汽车时可能出现的动力传动不够稳定以及驱动齿轮与发动机飞轮之间出现啮合不够平顺甚至出现卡齿的缺陷。本发明提供一种怠速启停用汽车单向器，包括单向器主体，单向器主体包括垂直布置的输出轴和通过螺旋花键同轴设于输出轴中段的驱动轮组件，输出轴的上端通过第一单向离合器与起动电机单向传动连接，下端通过第二单向离合器同轴安装有罩盖；罩盖整体呈下小上大的环形结构；本发明中的单向器主体能够在每次的起动过程中，对于与发动机飞轮啮合过程中起到重要作用的的驱动齿轮下端倒角给予打磨。
The present invention relates to the field of automobile one-way devices, and in particular, to an automobile one-way device for idle start-stop. The one-way device in the prior art may have the defects of unstable power transmission, unsmooth meshing between the driving gear and the engine flywheel, or even stuck teeth when used for idle start-stop vehicles. The present invention provides an automobile one-way device for idle start-stop, including a one-way device body, the one-way device body includes a vertically arranged output shaft and a driving wheel assembly coaxially arranged in the middle section of the output shaft through a spiral spline, the upper end of the output shaft is connected to the starter motor through a first one-way clutch, and the lower end is coaxially installed with a cover through a second one-way clutch; the cover is an annular structure with a small bottom and a large top as a whole; the one-way device body in the present invention can grind the chamfer of the lower end of the driving gear, which plays an important role in the meshing process with the engine flywheel, during each starting process.
Description
Technical Field
The invention relates to the field of automobile isolator, in particular to an idle speed starting and stopping automobile isolator.
Background
The isolator is one of key components of the automobile starter, and has the main functions of transmitting forward torque and preventing the starter from being damaged due to the fact that the starter is driven by a generator. The isolator is a core component of an electric starter and is widely used in electric starting systems such as a car, a coach, a truck, a ship, a helicopter and the like.
According to investigation, the ratio of the running time of the automobile to the time of waiting for a red light or traffic jam is 3:1 on average in China, and even 5:2 in some cities, as more than ten million new automobiles are rushed to the pavement each year, the urban roads become more congested, so that the idle idling automobile can be expected to waste more oil and generate more toxic tail gas. Therefore, an idle start-stop system has been developed, and the working principle of the system is that when a red light or traffic jam is met, the vehicle speed is lower than 3km/h, the engine is automatically shut down, and when a driver re-steps on a clutch, an accelerator pedal or a brake is loosely lifted, the starter quickly starts the engine, and the system mainly has the following characteristics:
① Energy saving, namely eliminating idling and saving oil consumed in idling time;
② Environmental protection, namely, after the engine automatically extinguishes, the tail gas emission is zero;
③ The engine power output is improved, so that the service life of the engine is prolonged, namely, the fuel cannot be completely combusted when the automobile is idling, the fuel is a main cause of carbon deposition of the engine, the carbon deposition of the engine can burn engine oil to increase energy consumption, and the power output of the engine can be reduced.
Along with the continuous rising of the oil price, the economical efficiency of an automobile idle speed start-stop system is more obvious, the pressure of domestic traffic is increased at present, people with own vehicles only become more and more, red lights at intersections and the like become home meal, idle speed becomes habit when the red lights are on the same level, and investigation shows that a vehicle with 1.6L displacement can consume 1.12L/h in 3 minutes at idle speed, which is equivalent to the oil consumption of running for 1 km in 3 minutes, and the oil consumption brought by only one vehicle can be considered to know how many vehicles are on the whole country.
In order to adapt to the large environmental trend of energy conservation and emission reduction of automobiles, most manufacturers of automobiles in the market push out an idle speed starting and stopping system for various types of automobiles, and because the vehicles are matched with the starting and stopping system, the vehicles are likely to be frequently started, and the frequent starting of the vehicles means that the use frequency of an automobile isolator is greatly improved, so that the idle speed starting and stopping automobile isolator is required to work stably and smoothly in the frequent starting process, and has better durability so as to meet the higher requirements of frequent starting on the service life of the automobile isolator. When the existing automobile isolator is used for a vehicle matched with an idle start-stop system, the situation that the normal operation of the automobile isolator is influenced due to the fact that power transmission is not stable enough, meshing between a driving gear and a motor gear is not smooth enough and even teeth are stuck can be caused due to the fact that starting frequency is greatly improved.
Disclosure of Invention
Aiming at the defects that the power transmission of the isolator in the prior art is not stable enough and the engagement between the driving gear and the engine flywheel is not smooth enough or even the latch is generated when the isolator is used for idling start-stop automobile.
The invention provides an idling start-stop automobile isolator, which comprises an isolator main body, wherein the isolator main body comprises an output shaft and a driving wheel assembly, the output shaft is vertically arranged, the driving wheel assembly is coaxially arranged at the middle section of the output shaft through a spiral spline, the upper end of the output shaft is in unidirectional transmission connection with a starting motor through a first unidirectional clutch, and the lower end of the output shaft is coaxially provided with a cover cap through a second unidirectional clutch;
The driving wheel assembly comprises a positioning protrusion, a driving gear and a shifting fork part, wherein the positioning protrusion, the driving gear and the shifting fork part are sequentially arranged from bottom to top and are matched with an external shifting fork to drive the driving wheel assembly to move along an output shaft, a plurality of transmission teeth are uniformly formed on the positioning protrusion along the circumferential direction of the positioning protrusion, the thickness of the driving gear is larger than that of an engine flywheel, a chamfer is formed at the lower end of the driving gear, a containing groove for receiving the positioning protrusion and the lower end of the driving gear is formed at the upper side of the cover, and a grinding sheet for polishing the chamfer at the lower end of the containing groove when the driving gear drives the engine flywheel to rotate is arranged at the inner wall of the upper side of the containing groove.
In the driving process of a vehicle matched with an idle speed start-stop system, frequent starting brings higher requirements on the use stability, the work smoothness and the service life of the isolator main body, the isolator main body can polish the chamfer at the lower end of a driving gear playing an important role in the process of being meshed with an engine flywheel in each starting process, so that the driving gear can be smoothly and stably meshed with the engine flywheel, the service life of the isolator main body can be better prolonged, and the smooth running of the whole starting process is better ensured. Because the lower end of the driving gear can be automatically chamfered for polishing in each starting process, the frequency of manual polishing can be reduced, and the manual burden is further reduced.
Preferably, a receiving ring coaxially fixed to the output shaft is arranged in the accommodating groove, a positioning groove used for being matched with the positioning protrusion is formed in the middle of the receiving ring, a plurality of transmission teeth are uniformly formed on the positioning protrusion along the circumferential direction of the positioning protrusion, chamfering angles are formed on the edges of groove walls of the positioning groove, when the driving wheel assembly axially moves to the position that the positioning protrusion is matched with the positioning groove, chamfering angles at the lower end of the driving gear are polished by a grinding disc at the accommodating groove, and a retainer ring used for preventing the cover cap from falling down is arranged at the tail end below the output shaft through a clamp spring.
Preferably, a receiving ring coaxially fixed to the output shaft is arranged in the accommodating groove, a positioning groove used for being matched with the positioning protrusion is formed in the middle of the receiving ring, a plurality of transmission teeth are uniformly formed on the positioning protrusion along the circumferential direction of the positioning protrusion, chamfering angles are formed on the edges of groove walls of the positioning groove, when the driving wheel assembly axially moves to the position that the positioning protrusion is matched with the positioning groove, chamfering angles at the lower end of the driving gear are polished by a grinding disc at the accommodating groove, and a retainer ring used for preventing the cover cap from falling down is arranged at the tail end below the output shaft through a clamp spring.
Preferably, the grinding sheets are triangular grinding sheets, and the grinding sheets are uniformly distributed along the circumferential interval of the inner wall of the upper side of the accommodating groove.
The abrasive disc adopts the triangle-shaped abrasive disc to noise when driving gear chamfer and abrasive disc are polished can be reduced preferably. Meanwhile, the grinding plates are uniformly arranged along the circumferential interval of the inner wall of the upper side of the accommodating groove, so that the driving gear chamfering can be fully polished, and meanwhile, the friction between the driving gear and the grinding plates is ensured not to generate excessive acting force on the driving gear so as not to influence the normal rotation of the driving gear.
Preferably, the first one-way clutch and the second one-way clutch each have a one-way clutch body of the same structure, the one-way clutch body including a star gear assembly including a star gear housing, a cover, and a circular washer.
The inner wall of the star gear shell is provided with a plurality of one-way clutch grooves, rollers and a second spring are arranged in the one-way clutch grooves, each one-way clutch groove comprises a second spring accommodating section and a roller accommodating section, the outer ring of the section of each roller accommodating section is in a slope, and a limiting baffle is arranged between every two adjacent one-way clutch grooves.
The section outer lane of roller accommodation section is the slope form, and when the roller moved along the downhill path section of slope, the one-way clutch main part realized power transmission separation, and when the roller moved along the uphill path section of slope, the roller was blocked and realized power transmission in the roller accommodation section to synchronous transmission or transmission separation between each drive assembly can be realized preferably.
Preferably, the roller is arranged in the roller accommodating section, the second spring is arranged in the second spring accommodating section, one end of the second spring is propped against the roller, the other end of the second spring is propped against the limiting baffle, the cover covers the opening end of the accommodating groove of the star gear shell, a limiting ring groove is formed in the star gear shell, and the end part of the cover is pressed into the limiting ring groove.
Preferably, the inner wall of the star gear shell is provided with a plurality of one-way clutch grooves, a cylindrical push rod and two third springs are arranged in the one-way clutch grooves, the length of the push rod is larger than the tightening width of the springs, and the cross section of the push rod head of the push rod is larger than the cross section area of the springs.
According to the invention, the cylindrical push rod and the two third springs replace the ball and spring structures in the prior art, so that the roller can be prevented from directly striking the springs, and further the springs are protected, the length of the push rod is larger than the tightening width of the third springs, the problem that the whole one-way clutch cannot work normally due to slipping failure caused by shortening deformation of the third springs is effectively avoided, and the cross section of the push rod head of the push rod is larger than the cross section of the springs, so that the third springs are prevented from being contacted with an output shaft to generate friction damage to the springs. In addition, the first one-way clutch and the second one-way clutch can be used for selecting the one-way clutch main body with proper sizes according to practical situations in the installation process.
Drawings
FIG. 1 is a schematic view showing the structure of a body of the isolator in embodiment 1;
FIG. 2 is a schematic cross-sectional view of the body of the isolator in example 1;
FIG. 3 is a schematic view showing the structure of a cover and an output shaft in embodiment 1;
FIG. 4 is a schematic structural view of a driving wheel assembly in embodiment 1;
FIG. 5 is a schematic view showing the structure of the body of the isolator in embodiment 2;
FIG. 6 is a schematic cross-sectional view of the body of the isolator in example 2;
FIG. 7 is a schematic view showing the structure of a cover and an output shaft in embodiment 2;
FIG. 8 is a schematic structural view of a driving wheel assembly in embodiment 2;
FIG. 9 is a schematic cross-sectional view of a star gear housing of embodiment 3;
Fig. 10 is a schematic structural view of a cylindrical push rod and a third spring in embodiment 4;
Fig. 11 is another structural schematic diagram of the cylindrical push rod and the third spring in embodiment 4.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples. It is to be understood that the examples are illustrative of the present invention and are not intended to be limiting.
Example 1
Referring to fig. 1-4, the present embodiment provides an idle start-stop automobile isolator, which includes an isolator main body 100, wherein the isolator main body 100 includes an output shaft 110 vertically arranged and a driving wheel assembly 120 coaxially disposed at a middle section of the output shaft 110 through a helical spline 130, an upper end of the output shaft 110 is in unidirectional transmission connection with a starter motor through a first unidirectional clutch 140, the first unidirectional clutch 140 can preferably realize synchronous rotation between the output shaft 110 and the starter motor and prevent an engine flywheel from reversely driving the output shaft 110 to protect the starter motor, a cover 150 is coaxially mounted at a lower end of the output shaft 110 through a second unidirectional clutch 210, the cover 150 is integrally in a ring structure with a small lower part and a large upper part, the second unidirectional clutch 210 can realize unidirectional locking of the cover 150 relative to the output shaft 110, and the cover 150 cannot rotate along with the rotation of the output shaft 110.
The driving wheel assembly 120 comprises a positioning protrusion 121, a driving gear 122 and a shifting fork part 123 which are sequentially arranged from bottom to top and are matched with an external shifting fork to drive the driving wheel assembly 120 to move along the output shaft 110, a plurality of transmission teeth are uniformly formed on the positioning protrusion 121 along the circumferential direction of the positioning protrusion, the thickness of the driving gear 122 is larger than that of an engine flywheel, a chamfer is formed at the lower end of the driving gear 122, and when the driving gear 122 drives the engine flywheel to rotate, stable power transmission can be realized due to the larger thickness of the driving gear 122. Meanwhile, the chamfer at the lower end of the driving gear 122 can enable the engagement between the driving gear 122 and the engine flywheel to be smoother, so that the stable running of the whole starting process is ensured. The upper side of the cover 150 forms a receiving groove 151 for receiving the positioning protrusion 121 and the lower end of the driving gear 122, and a grinding plate 152 for chamfering the lower end of the receiving groove 151 when the driving gear 122 drives the engine flywheel to rotate is arranged on the inner wall of the upper side of the receiving groove;
A receiving ring 160 coaxially fixed to the output shaft 110 is arranged in the accommodating groove 151, a positioning groove 161 for being matched with the positioning protrusion 121 is formed in the middle of the receiving ring 160, a plurality of transmission teeth are uniformly formed on the positioning protrusion 121 along the circumferential direction of the positioning protrusion, chamfers are formed on the groove wall edges of the positioning groove 161, when the driving wheel assembly 120 moves to the position where the positioning protrusion 121 is matched with the positioning groove 161 along the axial direction, the chamfers at the lower end of the driving gear 122 are polished by the grinding disc 152 at the accommodating groove 151, and a retainer ring 230 for preventing the cover 150 from falling down is mounted at the tail end below the output shaft 110 through a clamp spring.
As can be appreciated, on the one hand, the circumferential transmission teeth of the positioning protrusions 121 can generate power transmission with the receiving ring 160 formed with the positioning grooves 161, and since the receiving ring 160 is fixed on the output shaft 110, the synchronous transmission between the positioning protrusions 121 and the receiving ring 160 can cooperate with the power transmission of the output shaft 110 to the driving wheel assembly 120 through the spline to ensure that stable synchronous rotation is kept between the driving gear 122 and the output shaft 110.
On the other hand, the two sides of the driving wheel assembly 120 in the axial direction can be respectively positioned by matching the positioning protrusion 121 and the positioning groove 161, so that the stability of the driving wheel assembly 120 in the axial direction can be better improved, and the stable positioning of the driving wheel assembly 120 in the axial direction can also effectively avoid the condition that the lower end chamfer of the driving gear 122 cannot contact with the grinding plate 152 or the transmission is influenced due to excessive contact caused by the play deviation of the driving gear 122 in the axial direction, so that the stable grinding between the lower end chamfer of the driving gear 122 and the grinding plate 152 can be better ensured.
In addition, since the thickness of the driving gear 122 is greater than that of the engine flywheel, in the starting process, when the driving gear 122 is driven by the fork to move, the middle section of the driving gear 122 is engaged with the engine flywheel, and the lower end of the driving gear 122 is only in contact with the grinding plate 152 at the cover 150 in the circumferential direction but not in contact with the engine flywheel, so that the cover 150 does not interfere with the engine flywheel, thereby not affecting the smooth and stable running of the whole starting process.
Specifically, when the vehicle starts, the fork part 123 cooperates with the external fork to drive the driving wheel assembly 120 to move axially toward the engine flywheel, and since the driving wheel assembly 120 is mounted on the output shaft 110 through the helical spline 130, the driving wheel assembly 120 slightly rotates circumferentially relative to the output shaft 110 when moving along the output shaft 110, so that the driving gear 122 in the driving wheel assembly 120 is stably engaged with the engine flywheel to drive the engine flywheel to rotate, thereby completing the vehicle starting. At the time of starting, the lower end of the drive gear 122 is first brought into contact with the engine flywheel by chamfering and complete engagement.
During driving of a vehicle that is fitted with an idle start-stop system, the drive gear 122 is frequently engaged with and disengaged from the engine aircraft due to frequent starting. Thereby easily causing uneven chamfer and affecting smooth engagement between the drive gear 122 and the engine flywheel. Compared with the prior art, the lower end of the output shaft 110 in the isolator main body 100 in the present embodiment is provided with the cover 150, and the cover 150 is kept stationary during the rotation of the driving gear 122 following the output shaft 110, so that a relative motion is formed between the chamfer at the lower end of the driving gear 122 and the grinding plate 152 at the inner wall of the upper side of the cover 150 for grinding. Specifically, during each start-up, the abrasive disc 152 is able to grind the chamfer to better maintain the flatness and smoothness of the chamfer, thereby improving the service life of the isolator main body 100.
Further, it is noted that the grinding plate 152 in the present embodiment adopts a triangular grinding plate, so that noise when the driving gear 122 is chamfered and the grinding plate 152 is ground can be preferably reduced. Meanwhile, the grinding plates 152 are uniformly arranged along the upper inner wall of the accommodating groove 151 at intervals of 30 degrees in the circumferential direction, so that the driving gear 122 is sufficiently polished, and meanwhile, the friction between the driving gear 122 and the grinding plates 152 is ensured not to generate excessive acting force on the driving gear 122 to influence the normal rotation of the driving gear 122.
Therefore, in the driving process of the vehicle matched with the idle start-stop system, frequent starting puts higher demands on the use stability, the working smoothness and the working life of the isolator main body 100, the isolator main body 100 in the embodiment can polish the chamfer at the lower end of the driving gear 122 playing an important role in the process of meshing with the engine flywheel in each starting process, so that the driving gear 122 can be smoothly and stably meshed with the engine flywheel, the service life of the isolator main body 100 can be better prolonged, and the smooth running of the whole starting process is better ensured. Because the lower end of the driving gear 122 can be automatically chamfered for polishing in each starting process, the frequency of manual polishing can be reduced, and the manual burden is further reduced.
Example 2
Referring to fig. 5 to 8, the present embodiment provides an idle start stop car isolator, which is different from embodiment 1 in that the inner wall of the upper end of the receiving groove 151 is not provided with the grinding plate 152, and when the driving wheel assembly 120 moves in the axial direction until the positioning protrusion 121 and the positioning groove 161 are engaged, the receiving groove 151 is formed with a lubrication assembly for lubricating the lower end of the driving gear 122.
The buffer ring 610 is coaxially and movably arranged at the positioning groove 161 of the bearing ring 160, the buffer ring 610 penetrates through the bearing ring 160 along the axial direction, the buffer ring 610 moves along the axial direction and the circumferential direction relative to the bearing ring 160, the outer wall of one side of the buffer ring 610 near the driving gear 122 protrudes out of the inner wall of the positioning groove 161 to form a bulge, the middle part of the positioning bulge 121 is provided with a sliding groove 1211 for sliding fit with the buffer ring 610, one side of the sliding groove 1211 near the buffer ring 610 is provided with a round angle for receiving the buffer ring 610, the buffer ring 610 abuts against the positioning bulge 121 when the positioning bulge 121 is matched with the positioning groove 161, and the outer wall of one side of the buffer ring 610 far away from the driving gear 122 abuts against the extrusion ring 620.
Specifically, when the shift fork drives the driving wheel assembly 120 to move along the output shaft 110, the positioning protrusion 121 pushes the buffer ring 610 in the axial direction, and the buffer ring 610 is movably matched with the receiving ring 160 and the sliding groove 1211 of the positioning protrusion 121 in the circumferential direction, so that when the buffer ring 610 is pushed by the positioning protrusion 121 in the axial direction, the buffer ring 610 does not form a circumferential power transmission with the positioning protrusion 121 and the receiving ring 160, and thus, the buffer ring 610, the positioning protrusion 121 and the receiving ring 160 can perform a relative circumferential movement.
The lubrication assembly comprises an annular storage bin 630 which is formed on one side of the cover 150 and is close to the extrusion ring 620 and is used for receiving the extrusion ring 620 and storing lubricating oil, oil filling openings for supplementing the lubricating oil are formed in the lower portion of the storage bin 630, oil conveying pipelines 640 from the storage bin 630 to the outer wall of the upper end of the cover 150 are uniformly distributed on the outer side of the storage bin 630 in the circumferential direction, a plurality of first springs are uniformly arranged between the lower bottom wall of the storage bin 630 and the extrusion ring 620 in the circumferential direction, when the buffer ring 610 drives the extrusion ring 620 to move towards the storage bin 630 in the axial direction, the extrusion ring 620 compresses the springs and simultaneously presses the lubricating oil in the storage bin 630 into the oil conveying pipelines 640, sealing treatment is carried out on the inner walls of the extrusion ring 620 and the storage bin 630, and sealing rings are sleeved on the peripheries of the first springs to isolate the springs from the lubricating oil.
Specifically, when the buffer ring 610 drives the extrusion ring 620 to move axially, the extrusion ring 620 compresses the first spring to form an axial pressure on the lower bottom wall of the storage bin 630, and the buffer ring 610 receives the pressure given by the positioning protrusion 121, at this time, the buffer ring 610, the extrusion ring 620 and the bottom wall of the storage bin 630, that is, the cover 150 form a stressed whole, and in the process that the positioning protrusion 121 rotates along with the output shaft 110, the whole is restricted by the second one-way clutch 210 and cannot rotate along the circumferential direction along with the rotation direction of the output shaft 110, so that the stable positions of the first spring, the storage bin 630 and the oil delivery pipeline 640 are ensured. In addition, the first spring can also preferably reduce the axial impact of the driving wheel assembly 120 during rotation, thereby improving the stability of the driving gear 122 during rotation.
When the starting process is completed, the driving wheel assembly 120 is driven by the shifting fork to move along the output shaft 110 for resetting, the positioning protrusion 121 eliminates the pressure of the buffer ring 610 in the axial direction, the pressing ring 620 eliminates the pressure of the first spring, and the compressed first spring is restored and drives the pressing ring 620 to move in the direction of moving out of the storage bin 630 and the pressure of lubricating oil is removed.
An oil seepage bin 650 is formed at one end of the oil pipeline far away from the storage bin 630, an oil seepage outlet positioned at the outer wall of the upper end of the cover 150 is arranged at the lower end of the oil seepage bin 650, an oil brush 710 for receiving exuded lubricating oil is arranged at the oil seepage outlet, the lubricating oil pressed into the oil pipeline 640 by the extrusion ring 620 and slowly seeps onto the oil brush 710 at the outer wall of the upper end of the cover 150 through the oil seepage outlet, and when the driving gear 122 rotates, the lower end of the driving gear 122 contacts with the oil brush 710 and the coating of the lubricating oil is realized on the surface of the lower end of the driving gear 122. The total volume of the oil sump 650 and the oil conduit 640 is greater than the storage volume of the oil in the oil sump.
Specifically, when the squeeze ring 620 forces the lubrication oil in the reservoir 630 into the oil delivery conduit 640, the lubrication oil enters the oil penetration cartridge 650 along each of the oil delivery conduits. It can be appreciated that, since the total volume of the oil seepage chamber 650 and the oil delivery pipeline 640 is left as compared with the oil storage chamber, the situation that the extrusion ring 620 cannot push the storage chamber 630 and even affect the axial movement of the buffer ring 610 and the positioning protrusion 121 due to insufficient volume will not occur when the extrusion ring 620 presses the lubricating oil into the oil delivery pipeline 640. Thereafter, the lubricating oil slowly infiltrates onto the brush 710 at the outer wall of the upper end of the cap 150 through the oil-bleeding outlet, and when the driving gear 122 rotates, the lower end of the driving gear 122 contacts with the brush 710 and the coating of the lubricating oil is achieved on the surface thereof. When the extrusion ring 620 exits the storage bin 630, the lubricating oil in the oil seepage bin 650 naturally flows back into the storage bin 630 through the oil pipeline 640 under the action of gravity, and when the lubricating oil is consumed until the rest is not pressed into the oil seepage bin 650, the lubricating oil can be manually replenished through the oil filling port.
Therefore, in the driving process of the vehicle matched with the idle start-stop system, frequent starting puts higher demands on the use stability, the working smoothness and the working life of the isolator main body 100, and the isolator main body 100 in the embodiment can lubricate the lower end of the driving gear 122 which is firstly contacted and meshed with the engine flywheel in each starting process, so that the driving gear 122 can be smoothly and stably meshed with the engine flywheel and realize power transmission, the service life of the isolator main body 100 can be better prolonged, and the smooth running of the whole starting process is better ensured. Since the drive gear 122 is automatically given sufficient lubrication during each start, the frequency of manual supplemental lubrication is also preferably reduced, thereby preferably reducing the manual burden.
Example 3
Referring to fig. 9, according to embodiment 1 or embodiment 2, the present embodiment provides an idle start-stop automobile one-way clutch, in this embodiment, a first one-way clutch 140 and a second one-way clutch 210 each have a one-way clutch body with the same structure, the one-way clutch body includes a star gear assembly, the star gear assembly includes a star gear housing, a cover 220 and a round washer, the cover 220 can preferably improve the installation stability of the one-way clutch body, the inner wall of the star gear housing is provided with a plurality of one-way clutch grooves 1010, rollers 1030 and second springs 1020 are arranged in the one-way clutch grooves 1010, the one-way clutch grooves 1010 are accommodated by the second springs 1020 and the rollers 1030, the outer ring of the section of each roller 1030 accommodated in the section is a slope, and a limit stop is arranged between two adjacent one-way clutch grooves 1010;
The roller 1030 is placed in the roller 1030 accommodating section, the second spring 1020 is located in the second spring 1020 accommodating section, one end of the second spring 1020 abuts against the roller 1030, the other end abuts against the limiting baffle, the cover 220 is arranged at the opening end of the accommodating groove of the star gear shell, a limiting ring groove is formed in the star gear shell, and the end portion of the cover 150 is pressed into the limiting ring groove.
It will be appreciated that the cross-sectional outer race of the receiving section of the roller 1030 is ramp-shaped, the one-way clutch body effects a power transfer split as the roller 1030 moves along the downhill section of the ramp, and the roller 1030 snaps and effects a power transfer within the receiving section of the roller 1030 as the roller 1030 moves along the uphill section of the ramp, thereby enabling a preferably synchronous or split transmission between the various transmission components.
In this embodiment, when the first one-way clutch 140 is installed, the roller 1030 moves along the uphill section in the accommodating section of the roller 1030 when the output shaft 110 is driven to rotate synchronously by the starter motor, so that the starter motor can be ensured to be stably driven to rotate by the starter motor, and the output shaft 110 cannot reversely drive the starter motor to rotate, thereby protecting the starter motor. When the second one-way clutch 210 is installed, the roller 1030 moves along the downhill section in the accommodating section of the roller 1030 when the output shaft 110 is driven by the starting motor to rotate, so that the power transmission separation between the output shaft 110 and the cover 150 can be ensured, the output shaft 110 can not drive the cover 150 to synchronously rotate, and the relative movement between the grinding plate 152 and the driving gear 122 in the accommodating groove 151 of the cover 150 can be ensured to grind. Further, the first one-way clutch 140 and the second one-way clutch may be selected to have a corresponding suitable size of one-way clutch body according to actual conditions during installation.
Example 4
Referring to fig. 10 to 11, based on embodiment 1 or embodiment 2, the present embodiment provides an idle start stop car one-way device, which is different from embodiment 1 in that the first one-way clutch 140 and the second one-way clutch 210 in the present embodiment each have a one-way clutch body including a star gear assembly including a star gear housing, a cover 220, and a circular pad, wherein a plurality of one-way clutch grooves 1010 are provided in an inner wall of the star gear housing, a cylindrical push rod 1110 and two third springs 1120 are provided in the one-way clutch grooves 1010, and the push rod length is greater than the spring tightening width, and the push rod head cross section of the push rod is greater than the cross section area of the springs.
Specifically, compared with the prior art, the present embodiment uses the cylindrical push rod 1110 and two third springs 1120 to replace the ball and spring structures in the prior art, so as to avoid the direct impact of the roller 1030 on the springs and protect the springs, and the length of the push rod is longer than the tightening width of the third springs 1120, so that the problem that the whole one-way clutch cannot work normally due to slip failure caused by shortening deformation of the third springs 1120 is effectively avoided, and the cross section of the push rod head of the push rod is larger than the cross section area of the springs, so that the third springs 1120 are prevented from contacting the output shaft 110 to generate friction damage to the springs. Further, the first one-way clutch 140 and the second one-way clutch 210 may select a corresponding one-way clutch body of an appropriate size according to actual circumstances during installation.
It is to be understood that, based on one or several embodiments provided in the present application, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments, which do not exceed the protection scope of the present application.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (7)
1. The idle starting and stopping automobile isolator is characterized by comprising an isolator main body (100), wherein the isolator main body (100) comprises an output shaft (110) which is vertically arranged and a driving wheel assembly (120) which is coaxially arranged at the middle section of the output shaft (110) through a spiral spline (130), the upper end of the output shaft (110) is in unidirectional transmission connection with a starting motor through a first unidirectional clutch (140), and the lower end of the output shaft is coaxially provided with a cover cap (150) through a second unidirectional clutch (210);
The driving wheel assembly (120) comprises a positioning protrusion (121), a driving gear (122) and a shifting fork part (123) which are sequentially arranged from bottom to top and are used for being matched with an external shifting fork to drive the driving wheel assembly (120) to move along the output shaft (110), a plurality of transmission teeth are uniformly formed on the positioning protrusion (121) along the circumferential direction of the positioning protrusion, the thickness of the driving gear (122) is larger than that of an engine flywheel, a chamfer is formed at the lower end of the driving gear (122), a containing groove (151) for receiving the positioning protrusion (121) and the lower end of the driving gear (122) is formed at the upper side of the cover cap (150), and a grinding disc (152) used for polishing the chamfer at the lower end of the engine flywheel when the driving gear (122) drives the engine flywheel to rotate is arranged at the inner wall of the upper side of the containing groove (151).
2. The idle start-stop automobile isolator according to claim 1, wherein a receiving ring (160) coaxially fixed to the output shaft (110) is arranged in the receiving groove (151), a positioning groove (161) for being matched with the positioning protrusion (121) is formed in the middle of the receiving ring (160), a plurality of transmission teeth are uniformly formed on the positioning protrusion (121) along the circumferential direction of the positioning protrusion, chamfers are formed on the groove wall edges of the positioning groove (161), when the driving wheel assembly (120) axially moves to be matched with the positioning protrusion (121) and the positioning groove (161), a chamfer at the lower end of the driving gear (122) is polished by a polishing disc (152) at the receiving groove (151), and a retainer ring (230) for preventing the cover cap (150) from falling downwards is mounted at the tail end below the output shaft (110) through a clamp spring.
3. The idle start-stop automobile isolator according to claim 2, wherein the grinding plates (152) are triangular grinding plates (152), and the grinding plates (152) are uniformly arranged at intervals (30) along the circumferential direction of the inner wall of the upper side of the accommodating groove (151).
4. An idle start-stop automotive vehicle isolator according to claim 1, wherein the first one-way clutch (140) and the second one-way clutch (210) each have a one-way clutch body of the same structure, the one-way clutch body comprising a star gear assembly comprising a star gear housing, a cover (220), and a circular washer.
5. The idle start-stop automobile isolator according to claim 4, wherein a plurality of one-way clutch grooves (1010) are formed in the inner wall of the star gear shell, rollers (1030) and second springs (1020) are arranged in the one-way clutch grooves (1010), the one-way clutch grooves (1010) are formed by accommodating sections of the second springs (1020) and accommodating sections of the rollers (1030), the outer ring of the section of each accommodating section of the roller (1030) is in a slope shape, and limiting baffle plates are arranged between two adjacent one-way clutch grooves (1010).
6. The idle start-stop automobile isolator according to claim 5, wherein the roller (1030) is placed in a containing section of the roller (1030), the second spring (1020) is located in the containing section of the second spring (1020), one end of the second spring (1020) abuts against the roller (1030), the other end abuts against the limiting stop table, the cover (220) is arranged at an opening end of a containing groove of the star gear housing, a limiting ring groove is formed in the star gear housing, and the end portion of the cover cap (150) is pressed into the limiting ring groove.
7. The idle start-stop automobile isolator according to claim 4, wherein a plurality of one-way clutch grooves (1010) are formed in the inner wall of the star gear housing, a cylindrical push rod (1110) and two third springs (1120) are arranged in the one-way clutch grooves (1010), the length of the push rod is larger than the tightening width of the springs, and the cross section of the push rod head of the push rod is larger than the cross section area of the springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310084776.5A CN115898731B (en) | 2023-02-09 | 2023-02-09 | Idle speed starting and stopping automobile isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310084776.5A CN115898731B (en) | 2023-02-09 | 2023-02-09 | Idle speed starting and stopping automobile isolator |
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| Publication Number | Publication Date |
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| CN115898731A CN115898731A (en) | 2023-04-04 |
| CN115898731B true CN115898731B (en) | 2024-12-17 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327670A (en) * | 2001-04-27 | 2002-11-15 | Denso Corp | Starter |
| EP2824317A1 (en) * | 2013-07-09 | 2015-01-14 | Aktiebolaget SKF | Torque transmission mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7045861B2 (en) * | 2018-01-17 | 2022-04-01 | 株式会社ディスコ | Support base |
| CN113294276B (en) * | 2021-06-08 | 2022-07-19 | 瑞安市纪龙汽车电器有限公司 | Automobile starter with start-stop function |
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2023
- 2023-02-09 CN CN202310084776.5A patent/CN115898731B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002327670A (en) * | 2001-04-27 | 2002-11-15 | Denso Corp | Starter |
| EP2824317A1 (en) * | 2013-07-09 | 2015-01-14 | Aktiebolaget SKF | Torque transmission mechanism |
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| Publication number | Publication date |
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| CN115898731A (en) | 2023-04-04 |
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