CN109869255A - A kind of automobile starter gear pre-engagement system and its control method - Google Patents
A kind of automobile starter gear pre-engagement system and its control method Download PDFInfo
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- CN109869255A CN109869255A CN201910179840.1A CN201910179840A CN109869255A CN 109869255 A CN109869255 A CN 109869255A CN 201910179840 A CN201910179840 A CN 201910179840A CN 109869255 A CN109869255 A CN 109869255A
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- gear
- starter
- screw rod
- working chamber
- engagement system
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Abstract
The invention discloses a kind of automobile starter gear pre-engagement system and its control methods, the pre-engagement system is made of starter, gearing pre-meshing device, output gear and hydraulic circuit, gearing pre-meshing device is installed between starter and output gear, it is made of blade, screw rod, working chamber, flat key and working chamber partition, working chamber partition, blade, output gear are from left to right successively fixed on screw rod, working chamber is divided into left and right two parts by working chamber partition, and the oil inlet of working chamber is connected to hydraulic circuit.The present invention by gearing pre-meshing device, can maximum possible eliminate apical tooth phenomenon, guarantee that starter output gear engage with engine flywheel ring gear flexibility, the service life of extension output gear and flywheel ring gear, impact of the reduction starter to engine flywheel ring gear.
Description
Technical field
The present invention relates to internal-combustion engines vehicle start field, in particular to a kind of automobile starter gear pre-engagement system and its
Control method.
Background technique
During existing automobile starting, ignition switch is allocated to starting shelves, and electromagnetic switch pulls shift fork that gear is pushed to advance,
When the teeth of starter output gear are narrowly focused towards the tooth socket of engine flywheel ring gear, output gear is just smooth with flywheel ring gear
Engagement；If the teeth of starter output gear are not aligned with the tooth socket of flywheel ring gear, apical tooth phenomenon occurs, at this time electromagnetism
Switch continues to press on advance, and pulls the torque spring on shift fork, so that output gear is generated pressure to flywheel ring gear, by output gear
The tooth socket of wheel indentation flywheel ring gear.If such case is frequent occurrence, output gear is with flywheel ring gear in the case where frequent stress contacts
Phenomena such as be easy to causeing rippling, tooth face agglutination reduces the service life of gear and flywheel ring gear, and due to rigid contact,
There are stress mutations, are unfavorable for the smooth starting of automobile.
Existing gear pre-engagement method, as Chinese invention patent (CN2270647Y) discloses a kind of " gear pre-engagement
Device ", pre-engagement device is by shell, input gear, input shaft, freewheel clutch, output shaft, output gear, piston and reset
Spring is constituted, and pressure fluid pushes piston mobile, the stretching synchronous with output gear of drive output shaft and large ring gear meshing, and such as two
The gear teeth offset, and output gear can retreat a distance with respect to output shaft, and rotate an angle under the effect of non-self-lock-ing helical spline
Degree, to ensure to properly enter engagement.This method has the following disadvantages: after this method completes gear engagement first, starting
Machine works again, and priming speed is slower；Secondly, the device power transfer part is passed by a series of driving gears and driven gear
Dynamic, structure is complicated, and increases the burden of starter starting.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention discloses a kind of automobile starter gear pre-engagement systems
And its control method, this system starter output gear and engine flywheel ring gear pre-engagement when can make automobile starting, reduce
Impact of the starter to engine flywheel ring gear.
Above-mentioned technical purpose is implemented with the following technical solutions in the present invention.
A kind of automobile starter gear pre-engagement system, including starter, gearing pre-meshing device, output gear and hydraulic
Oil circuit, the gearing pre-meshing device are installed between starter and output gear, gearing pre-meshing device also with hydraulic circuit
Connection；The gearing pre-meshing device includes screw rod, and the output shaft of starter abuts one end of screw rod, and the other end of screw rod passes through
It is connected after working chamber with output gear；From left to right successively be fixed on screw rod inside the working chamber working chamber partition and
Blade；The oil inlet of the working chamber is connected to hydraulic circuit, and the hydraulic circuit includes the hydraulic pump being connected with oil inlet, liquid
Press pump is also connected with hydraulic cylinder, and check valve is equipped between hydraulic pump and oil inlet, is equipped between hydraulic pump and hydraulic cylinder
Pressure switch in parallel and travel displacement switch；The working chamber lower end is equipped with oil outlet, and oil outlet is connected with fuel reserve tank；It abuts
The screw rod of output shaft one end is equipped with keyway, is equipped with flat key in keyway, flat key can head into output shaft under the action of hydraulic oil
In the keyway on surface；The blade is 6 or 8 or 10 or 12 along screw rod radial equipartition, the quantity of blade；, the oil inlet is located at
Above blade, and radial offset is in blade.
A kind of control method of automobile starter gear pre-engagement system, after ignition switch is allocated to starting shelves, if output gear
With flywheel ring gear apical tooth phenomenon occurs for wheel, and hydraulic circuit is opened under the action of pressure switch, pre-engagement device starting, hydraulic
Blade starts to rotate under the impact of oil, and screw rod rotation is driven to complete gear engagement；Flat key heads into the keyway of output shaft inner surface, rises
Connecting firmly for motivation output shaft and screw rod, transmits the torque of starter；If hydraulic circuit is in travel displacement apical tooth phenomenon does not occur
It is opened under the action of switch, flat key heads into the keyway of output shaft inner surface, and starter output shaft and screw rod connect firmly, and transmitting starts
The torque of machine.
The beneficial effects of the present invention are:
1. pre-engagement device uses Hydraulic Elements, pass through travel displacement switch and pressure switch Collaborative Control hydraulic circuit
It opens；After hydraulic circuit unlatching, if output gear does not engage with engine flywheel ring gear, blade is impacted by hydraulic oil,
Then the form of screw rod rotation is driven, to complete engaging for output gear that screw end connects firmly and flywheel ring gear.Compared to machinery
Structure, present invention impact is small, can be realized output gear and engages with the flexibility of flywheel ring gear.
2. lighter weight drives pre-engagement device in starter since blade and working chamber partition use plastic or other material
During starting, the starting burden of starter can be mitigated, will not excessively increase load when starter starts.
3. when ignition switch is allocated to starting shelves, output shaft is protruding, and right end indent section lead-screw moves right,
Once the output gear of screw end is engaged with engine flywheel ring gear completion, starter can drive engine to be opened immediately
It is dynamic.Output gear can be completed to engage while starter works with flywheel ring gear, reduce the starting time.
Detailed description of the invention
Fig. 1 is structure diagram of the invention；
Fig. 2 is the structure diagram of output shaft；
Fig. 3 is the structure diagram of screw rod；
Fig. 4 is the structure diagram of blade；
Fig. 5 is the structure diagram of starter；
Fig. 6 is the operating condition flowering structure figure that gearing pre-meshing device does not engage in output gear with flywheel ring gear；
Fig. 7 is the operating condition flowering structure figure that gearing pre-meshing device has been engaged in output gear with flywheel ring gear；
Wherein: 1- starter, 2- output shaft, 3- gearing pre-meshing device, 4- output gear, 5- engine flywheel ring gear,
6- hydraulic pump, 7- check valve, 8- blade, 9- screw rod, 10- working chamber, 11- flat key, 12- working chamber partition, 13- ignition switch,
14- iron core, 15- shift fork, 16- fuel reserve tank, 17- pressure switch, 18- travel displacement switch.
Specific embodiment
Specifically describe starter gear pre-engagement system and its control method of the invention with reference to the accompanying drawing.
As shown in Figure 1, a kind of automobile starter gear pre-engagement system is by starter 1, gearing pre-meshing device 3, output
Gear 4, hydraulic circuit composition, gearing pre-meshing device 3 is by blade 8, screw rod 9, working chamber 10, flat key 11, working chamber partition 12
Composition.Hydraulic circuit is made of pressure switch 17, travel displacement switch 18, hydraulic pump 6, check valve 7 and hydraulic cylinder.
The 2 right end indent of output shaft of starter 1, and the left end (as shown in Figure 2) of screw rod 9 is abutted, when output shaft 2 moves right
When dynamic, screw rod 9 is pushed out, and screw rod 9 is connected after passing through working chamber 10 with output gear 4；Working chamber 10 is cylindrical shape, quilt
Mobile working chamber partition 12 divides for left and right two parts, and 10 upper end of working chamber is equipped with oil inlet, and works as output gear 4 and engine
When flywheel ring gear 5 does not engage, oil inlet is located at 8 top of blade, is in radial offset with blade 8, guarantees blade 8 by hydraulic oil
It is rotated clockwise when impact.
As shown in Figure 1-3, working chamber partition 12 and blade 8 are successively fixed on 9 middle part of screw rod, 9 left end of screw rod from left to right
Equipped with keyway, it is equipped with flat key 11 in keyway, flat key 11 can be under the pressure of hydraulic oil from being headed into upwards in output shaft 2 in keyway
In the keyway on surface, the output shaft 2 for completing starter 1 is connected firmly with screw rod 9, since there is connected output gear 4 in 9 end of screw rod,
The torque of starter 1 just can be transmitted at this time；9 right end of screw rod is equipped with screw thread, rotates clockwise when under drive of the screw rod 9 in blade 8
When, screw rod 9 can stretch out to the right；Working chamber partition 12 is circular slab, and screw rod 9 can be followed to rotate and move axially together, work as spiral shell
When bar 9 moves axially, working chamber partition 12 makes oil inlet be respectively aligned to left and right two parts of working chamber 10.10 lower end of working chamber
Equipped with oil outlet, oil outlet is connected by pipeline with fuel reserve tank 16；Oil inlet is connected by pipeline with hydraulic pump 6, and on pipeline
Equipped with check valve 7, hydraulic pump 6 is connected by pipeline with hydraulic cylinder, and the pipeline between hydraulic pump 6 and hydraulic cylinder is equipped with
Pressure switch 17 and travel displacement switch 18 in parallel, pressure switch 17 and travel displacement switch 18 are used for coordinated control hydraulic oil
Road is turned on or off.
As shown in figure 4, blade 8 is rectangle, it is evenly arranged on screw rod 9,8 quantity of blade can be 6,8,10,12, hydraulic
When oil circuit is opened, blade 8 rotates clockwise under the impact of hydraulic oil, then screw rod 9 is driven to rotate.Blade 8 and working chamber every
Plate 12 is using light materials such as plastics.
The present invention, can be maximum by installing gearing pre-meshing device 3 among starter 1 and engine flywheel ring gear 5
May eliminate apical tooth phenomenon, guarantee starter output gear 4 with engine flywheel ring gear 5 is flexible engage, extension output gear 4 and
The service life of flywheel ring gear 5 reduces impact of the starter 1 to engine flywheel ring gear 5.
A kind of course of work of automobile starter gear pre-engagement system of the present invention is as follows:
As shown in figure 5, ignition switch 13 is allocated to starting shelves, starter solenoid is powered, and electromagnetic coil generates electromagnetic force
Attract iron core 14 that the pulling force of spring is overcome to be moved to the left, iron core 14 drives 15 upper end of shift fork to be moved to the left, due to 15 middle part of shift fork
There is positioning pin, so 15 lower end of shift fork drives output shaft 2 to move right；Due to 2 right end indent of output shaft, and screw rod 9 protrudes into simultaneously
Against the indent end face of output shaft 2, screw rod 9 is also pushed outwardly, therefore output gear 4 generates axial movement outward.
As shown in fig. 6, if the teeth of output gear 4 are not aligned with the tooth socket with engine flywheel ring gear 5, pressure switch
17 experience axial compressive force, and pressure switch 17 is opened, hydraulic circuit access；The stroke of screw rod 9, which is not up to, engages required row
Journey, working chamber partition 12 are located at the left end of oil inlet, at this time the right end of oil inlet alignment work chamber 10；Hydraulic oil is by hydraulic cylinder
The right end of working chamber 10 is flowed into through hydraulic pump 6, check valve 7；Since oil inlet and blade 8 are axially aligned but radial offset,
Blade 8 rotates clockwise under the impact of hydraulic oil.Output gear 4 also rotates clockwise therewith, and while rotating outward
It stretches out, completion is engaged with flywheel ring gear 5.Again since working chamber partition 12 is as screw rod 9 rotates and moves right, oil inlet at this time
By the left end of alignment work chamber 10, the left end that hydraulic oil flows into working chamber 10 then flows into flat key slot and flat key 11 is headed into output mouth
In the keyway of 2 inner surface of axis, completion output shaft 2 is connected firmly with screw rod 9.So far, starter output gear 4 and engine are completed
The overall process that flywheel ring gear 5 engages.After output gear 4 is engaged with flywheel ring gear 5, automobile starter output shaft 2 will drive spiral shell
Bar 9 rotates, and since there is the output gear 4 connected firmly in 9 end of screw rod, just can transmit the torque of starter 1 at this time.
As shown in fig. 7, if the teeth of output gear 4 are narrowly focused towards the tooth socket of engine flywheel ring gear 5, output gear 4
It is engaged with the completion of flywheel ring gear 5.At this point, for the pressure of output gear 4, therefore pressure switch 17 is not felt by flywheel ring gear 5
Pressure switch 17 is closed；At the same time, travel displacement switch 18 is judged output gear 4 and is started by the stroke of output shaft 2
Machine flywheel ring gear 5 has engaged, and travel displacement switch 18 is opened, hydraulic circuit access.The stroke of screw rod 9 has reached gear engagement
Position, so working chamber partition 12 also follows the right end for being moved to oil inlet, working chamber oil inlet alignment work chamber 10 at this time
Left end.Hydraulic oil is flowed directly into the left end of working chamber 10 by hydraulic cylinder through hydraulic pump 6, check valve 7, flows into flat key slot for flat key
11 head into the keyway of 2 inner surface of output shaft, complete connecting firmly for output gear 4 and screw rod 9, connect firmly since 9 end of screw rod has
Output gear 4 just can transmit the torque of starter 1 at this time.
In entire starting process, output gear 4 and flywheel ring gear 5 do not have rigid shock, being capable of maximum possible elimination top
Tooth phenomenon guarantees that starter output gear 4 and engine flywheel ring gear 5 are flexibly connected, extends output gear 4 and flywheel ring gear
Service life reduces impact of the starter 1 to engine flywheel ring gear 5, guarantees to combine smooth, engine smooth running.
It is situated between above to a kind of automobile starter gear pre-engagement system provided by the present invention and its control method
It continues, and construction and specific control principle to device and embodiment are expounded, it is described above to be only intended to help
Understand method and its core concept of the invention.It should be pointed out that for those skilled in the art, not taking off
, can be with several improvements and modifications are made to the present invention under the premise of from the principle of the invention, these improvement and modification also fall into this
In scope of protection of the claims.
Claims (10)
1. a kind of automobile starter gear pre-engagement system, which is characterized in that including starter (1), gearing pre-meshing device
(3), output gear (4) and hydraulic circuit, the gearing pre-meshing device (3) be installed on starter (1) and output gear (4) it
Between, gearing pre-meshing device (3) is also connected to hydraulic circuit.
2. automobile starter gear pre-engagement system according to claim 1, which is characterized in that the gear pre-engagement dress
Setting (3) includes screw rod (9), and the output shaft (2) of starter (1) abuts the one end of screw rod (9), and the other end of screw rod (9) passes through work
Make to be connected after chamber (10) with output gear (4).
3. automobile starter gear pre-engagement system according to claim 1, which is characterized in that in the working chamber (10)
Working chamber partition (12) and blade (8) are from left to right successively fixed on the screw rod (9) in portion.
4. automobile starter gear pre-engagement system according to claim 1 or 2, which is characterized in that the working chamber
(10) oil inlet is connected to hydraulic circuit.
5. automobile starter gear pre-engagement system according to claim 4, which is characterized in that the hydraulic circuit includes
The hydraulic pump (6) being connected with oil inlet, hydraulic pump (6) are also connected with hydraulic cylinder, and are equipped between hydraulic pump (6) and oil inlet
Check valve (7) is equipped with pressure switch (17) in parallel and travel displacement switch (18) between hydraulic pump (6) and hydraulic cylinder.
6. automobile starter gear pre-engagement system according to claim 5, which is characterized in that under the working chamber (10)
End is equipped with oil outlet, and oil outlet is connected with fuel reserve tank (16).
7. automobile starter gear pre-engagement system according to claim 1, which is characterized in that abut output shaft (2) one
The screw rod (9) at end is equipped with keyway, is equipped with flat key (11) in keyway, flat key (11) can head into output shaft under the action of hydraulic oil
(2) in the keyway of inner surface.
8. automobile starter gear pre-engagement system according to claim 1, which is characterized in that the blade (8) is along spiral shell
Bar (9) radial equipartition, the quantity of blade (8) are 6 or 8 or 10 or 12.
9. automobile starter gear pre-engagement system according to claim 8, which is characterized in that the oil inlet is located at leaf
Above piece (8), and radial offset is in blade (8).
10. a kind of control method of automobile starter gear pre-engagement system, which is characterized in that ignition switch is allocated to starting shelves
Afterwards, if apical tooth phenomenon occurs for output gear and flywheel ring gear, hydraulic circuit is opened under the action of pressure switch, gear pre-engagement
Device starting, blade starts to rotate under the impact of hydraulic oil, and screw rod rotation is driven to complete gear engagement；Flat key heads into output shaft
Connecting firmly for the keyway of inner surface, starter output shaft and screw rod, transmits the torque of starter；If apical tooth phenomenon, liquid do not occur
Pressure oil road is opened under the action of stroke displacement switch, and flat key heads into the keyway of output shaft inner surface, starter output shaft and spiral shell
Bar connects firmly, and transmits the torque of starter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179840.1A CN109869255B (en) | 2019-03-11 | 2019-03-11 | Automobile starter gear pre-meshing system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910179840.1A CN109869255B (en) | 2019-03-11 | 2019-03-11 | Automobile starter gear pre-meshing system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109869255A true CN109869255A (en) | 2019-06-11 |
| CN109869255B CN109869255B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910179840.1A Active CN109869255B (en) | 2019-03-11 | 2019-03-11 | Automobile starter gear pre-meshing system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027655A (en) * | 2021-03-31 | 2021-06-25 | 郑州宇通重工有限公司 | Dragging starting system and engineering equipment using same |
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| CN103562541A (en) * | 2011-05-27 | 2014-02-05 | 波克兰液压工业设备公司 | Hydraulic transmission device and compact hydraulic starter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113027655A (en) * | 2021-03-31 | 2021-06-25 | 郑州宇通重工有限公司 | Dragging starting system and engineering equipment using same |
| CN113027655B (en) * | 2021-03-31 | 2022-03-18 | 郑州宇通重工有限公司 | Dragging starting system and engineering equipment using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109869255B (en) | 2021-02-12 |
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Effective date of registration: 20230613 Address after: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University |
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