CN201391407Y - Starter driving device - Google Patents
Starter driving device Download PDFInfo
- Publication number
- CN201391407Y CN201391407Y CN200920101658U CN200920101658U CN201391407Y CN 201391407 Y CN201391407 Y CN 201391407Y CN 200920101658 U CN200920101658 U CN 200920101658U CN 200920101658 U CN200920101658 U CN 200920101658U CN 201391407 Y CN201391407 Y CN 201391407Y
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- live axle
- iron core
- housing
- starter motor
- gear
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- 239000007858 starting material Substances 0.000 title claims abstract description 79
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000013016 damping Methods 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 15
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 33
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 10
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model relates to a starter driving device, in particular to a driving device for a starter in an internal-combustion engine, belonging to the technical field of starters and aiming at providing a starter driving device which can realize the start of the internal-combustion engine by means of thrice rotation shaft-movement guided engagement in the start process. The scheme adopted by the utility model is as follows: the front end of a driving shaft passes through a front gear and is sheathed at the front end of a shell; the tail part of the driving shaft is arranged at the inner side of a clutch driven disk in a matching way by a driving shaft screw key; the clutch driven disk is arranged at the rear end of the shell by a rear-end bearing; the middle of the driving shaft is provided with steps and a second clamping ring; the forward-most end of the driving shaft is provided with a driving gear by a driving shaft straight key; a buffering spring is arranged between the driving gear and the driving shaft; a support spring is arranged between a convex ring at the inner side of a hollow electromagnetic moving iron core and the tail part of the driving shaft; and a thrust spring is arranged between the convex ring and the second clamping ring. The starter driving device can be widely applied in the field of starters of various internal-combustion engines.
Description
Technical field
The drive unit of the utility model starter motor is specifically related to the drive unit of starter motor in a kind of internal-combustion engine, belongs to the starter motor technical field.
Background technique
The starter motor majority that present car combustion engine uses is positively engaging formula starter motor, positively engaging formula starter motor, main direct current generator by outputting power, drive the unidirectional drive gear of internal combustion engine flywheel ring gear, the magnetic switch that is installed on the motor outside and makes the motor power supply and cut off the power supply, the transmission shift fork that can make the unidirectional drive gear release and give up the throne, and the compositions such as support copper sheathing of direct current generator running., during starter motor work, the solenoid winding power supply, electromagnet drives the transmission shift fork, the transmission shift fork produces two actions by lever principle, the lower end promotes to be set in the unidirectional drive gear on the motor shaft, meshes with the internal combustion engine flywheel ring gear.The upper end makes the power supply circuits of direct current generator connect power supply, and motor rotates, and drives internal-combustion engine ignition, behind engine starting, solenoid winding is stopped power supply, and electromagnet magnetic force disappears, under the effect of return spring, the transmission shift fork is by the lever principle effect, on the one hand unidirectional drive is given up the throne, on the other hand, the power supply road of magnetic switch disconnects, starting process is finished in the motor stall.
Three strong points that copper sheathing turns round as the starter motor axle before, during and after the general use of positively engaging formula starter motor, the lubricated part of copper sheathing is relatively poor, easy to wear, often causes starter motor stator and rotor to sweep boring, and the motor output torque is little, can't starting apparatus combustion engine.Especially in the winter of north cold, the copper sheathing of powerful diesel engine starter motor is shorter service time, and it is frequent to cause starter motor to repair.
Realize by the transmission shift fork when unidirectional drive gear of positively engaging formula starter motor and the engagement of the flywheel ring gear of internal-combustion engine, the middle and lower part of transmission shift fork with by the balance pivot of the middle bearing pin by housings support as the transmission shift fork, the transmission shift fork by static state to different with concrete parameter request, nearly 20 °～40 ° pendulum angle of dynamic duty scope internal cause electrizer watt level.Thereby the connection part of the connection part of electromagnet and transmission shift fork upper end and pin on the shape part of transmission shift fork lower end " fork " and unidirectional drive gear transmission hub must leave the free matching gap with the corresponding hunting range of transmission shift fork, in using process because of the mutual wearing and tearing between transmission shift fork, intermediate pin and the transmission shift fork, mutual wearing and tearing between intermediate pin and the housing, pin on the shape part of transmission shift fork lower end " fork " and the mutual wearing and tearing between the individual event actuation gear driving center etc.Thereby the matching gap between each parts progressively changes increase, cause the closing time of the operation of unidirectional drive gear and magnetic switch main contact asynchronous, occurring in advance, power supply causes " mill teeth ", so-called " mill teeth ": the unidirectional drive gear that is meant starter motor does not mesh with the internal combustion engine flywheel ring gear, and the starter motor high speed rotating produces the strong sound, the unidirectional drive gear is equivalent to " milling cutter " flywheel ring gear of internal-combustion engine is carried out " mill and disappear ", and both sides' gear is scrapped simultaneously when serious.
Tooth and tooth appear in the engagement of the unidirectional drive gear of positively engaging formula starter motor and the flywheel ring gear of internal-combustion engine when pushing up mutually, the transmission shift fork continues the damping spring on the compression unidirectional drive gear, main electric shock the until magnetic switch connected power supply, starter armature drives angle of actuation gear rotation and finds smooth position engaged, unidirectional drive gear and internal combustion engine flywheel ring gear engaging starter run well, because of the intrinsic structure of this starter motor, so between each transmission part corresponding free clearance must be arranged, wear and tear in the using process in addition and cause the shortcoming of gap increase, easily produce power supply in advance and cause mill teeth, in order to avoid the generation of mill teeth as far as possible, effective supply district of magnetic switch main contact is less during production.After starter motor uses a period of time, touch the gap and increase, the sound of starter motor " click click " occurs only hearing when tooth and tooth push up mutually at unidirectional drive gear and internal combustion engine flywheel ring gear, and starter motor can not be worked because of the burning of magnetic switch main contact.Here it is " apical tooth ", be meant that the tooth of unidirectional drive gear is relative with the tooth of internal combustion engine flywheel ring gear, and starter motor do not change, and starting both sides' gear continuously has stronger machinery to collide.
Unidirectional drive gear in the positively engaging formula starter motor is higher parts of this starter motor rate of fault.The unidirectional drive gear is combined by overrunning clutch and actuation gear and is gained the name.Thereby be that one-way element damages or actuation gear damages the integral replacing that all will cause the fixed combination of unidirectional drive gear.
In addition, the employing sliding gear starter is arranged also, sliding gear starter is the starter motor technology that China introduces European countries.It is typical case's representative that this starter motor moves starter motor with the in-line gears of company of German Bosch (BOSCH).This starter motor mainly is made up of direct current generator, supply relay, thrust electromagnetic coil, friction disk type single clutch, actuation gear and actuation gear push rod of having return spring etc., friction disk type one-way clutch is loaded on the front end of rotor, actuation gear independently is installed on the front end of overrunning clutch axle, and rotor shaft, overrunning clutch axle, actuation gear are hollow lumen.The actuation gear push rod is passed through rotor shaft by the rear end of rotor shaft hollow lumen connects overrunning clutch, actuation gear one line.And it is fastening with screw at the front end of actuation gear.The stator coil of this starter motor is formed the compound-wound direct current generator by 4 main coils and 4 ancillary coils that are in series of two and two strings.
This starter motor adopts the two level wiper mode when work: at first, it is the ancillary coil that supply relay contact bridge one side joint energize is given stator coil, the power supply of thrust electromagnetic coil, be actuation gear slow-speed on the one hand this moment, the thrust electromagnetic coil produces magnetic force on the other hand, promotion has the actuation gear push rod of return spring, promote overrunning clutch and actuation gear axial advancement, seek and the engagement of internal combustion engine flywheel ring gear, action by a mechanical device on the thrust electromagnetic coil and a mechanical device on the supply relay cooperates then, contact bridge opposite side primary power supply on the supply relay is connected, this moment, the main coil and the ancillary coil of stator line bag were worked simultaneously, starter motor is exported whole torques and is driven internal combustion engine operation, realizes the starting to internal-combustion engine.Behind the internal combustion engine start, the supply relay outage, actuation gear is return under the effect of push rod return spring, finishes starting.Sliding gear starter meshes the problem that the mode of afterwards powering efficiently solves " mill teeth " and " apical tooth " of the existence of positively engaging formula starter motor by the slow-speed performance and the elder generation of actuation gear, has improved the reliability of power supply.
There is following problems in it: (1) sliding gear starter is because of having supply relay, thrust electromagnetic coil: the cooperation of the associated mechanical device in the main coil of stator coil and ancillary coil and the course of action, make not only complex structure of this starter motor, manufacturing tolerance requires high, volume is bigger, and consumption copper is big, cost is high.
(2) strong point of starter armature still uses copper sheathing, and is easy to wear, and the slow-speed afunction has lost original due meshing performance when stator and rotor occurring and slightly sweep boring.
The model utility content
The drive unit of the utility model starter motor, problem to be solved provide a kind of threefold rotor of can realizing and move the cranking-motor drive of guiding engagement cranking internal combustion engine in starting process.
In order to address the above problem, the scheme that the drive unit of the utility model starter motor adopts is: the drive unit of starter motor, mainly comprise: housing, live axle, clutch driven plate, clutch driving plate, rotor shaft, electromagnetic coil, hollow electromagnetism static iron core, moving iron core of hollow electromagnetism and contact making device, its structure is: the front end of live axle passes the front end of front end gear set at housing, and stretch out housing, the afterbody of live axle cooperates the inboard that is installed in clutch driven plate by the live axle screw key, the outside of clutch driven plate is installed in the rear end of housing by rear end bearing, the neutral position of live axle is provided with step, rear end at the step of live axle is provided with second collar, outwards actuation gear is installed foremost in the outside of housing and at live axle by the straight key of live axle, be provided with damping spring between actuation gear and the live axle, afterbody at housing is coaxially installed with rotor shaft by supporting frame and live axle, the front end of rotor shaft is equipped with clutch driven plate by the cooperation of rotor shaft screw key and matches and coaxial mounted clutch driving plate, be provided with the driving disc damping spring between clutch driving plate and the supporting frame, coaxial package is free electrocardio magnetic static iron core respectively in housing and in the live axle outer end, the moving iron core of hollow electromagnetism that is positioned at the electromagnetic coil of hollow electromagnetism static iron core inboard and is positioned at the electromagnetic coil proceeds posterolateral, the arranged outside of the moving iron core of hollow electromagnetism has the contact making device of starter motor, inboard at electromagnetic coil is provided with return spring between hollow electromagnetism static iron core and the moving iron core of hollow electromagnetism, the inboard neutral position of the moving iron core of hollow electromagnetism inwardly is provided with bulge loop.
Be provided with supported spring between the above-mentioned bulge loop and the afterbody of live axle, be provided with thrust spring between the bulge loop and second collar.
Above-mentioned contact making device comprises: following stationary contact, last stationary contact, ring-type movable contact dish, annular movable contact dish supporting frame, first collar and movable contact pressure spring, its structure is: following stationary contact and last stationary contact respectively with the lower end and the upper end in the neutral position that is fixed on the housing inner chamber of housing insulation, ring-type movable contact dish is sleeved on the outer side surface of the moving iron core afterbody of hollow electromagnetism by annular movable contact dish supporting frame, the rear-most end in the moving iron core of the hollow electromagnetism outside is provided with first collar, and the movable contact pressure spring is arranged between first collar and the ring-type movable contact dish supporting frame.
The [coefficient of of above-mentioned return spring is less than the [coefficient of of thrust spring.
Compared with prior art, the drive unit of the utility model starter motor has following beneficial effect:
The drive unit of the utility model starter motor, can realize three kinds of engagement starting apparatus combustion engines under the state, at first, the electromagnetic coil energising, the moving iron core of hollow electromagnetism promotes the motion of thrust spring forward end under the gravitation of hollow electromagnetism static iron core, thrust spring promotes second collar and travels forward, second collar drives live axle and actuation gear moves forward together, the afterbody of live axle is connected with clutch driven plate by the live axle screw key, makes actuation gear and live axle realize rotating for the first time and moving axially; When if " apical tooth " appears in actuation gear and flywheel ring gear, the actuation gear of live axle front end compression damping spring, the while is along with the rotary steering of live axle, live axle continues reach, actuation gear misses the apical tooth position, finds smooth position engaged, has realized that running shaft moves for the second time; After having finished the secondary running shaft and having moved, two gears are not engagement smoothly still, and down stationary contact and last stationary contact with after annular movable contact dish contacts, starting motor rotor, rotor drives actuation gear and live axle rotates together, and thrust spring and the moving actuation gear of buffering spring band and live axle axially move together, makes actuation gear and live axle realize rotating for the third time and moving axially, actuation gear and flywheel ring gear are meshed fully, reach the purpose of safe and reliable cranking internal combustion engine.
1. adopt straight key mode to cooperate between actuation gear and the live axle, and between actuation gear and live axle, damping spring is set, and actuation gear can move axially, make actuation gear have pooling feature, the external spiral key combination of the screw key of clutch driven plate inner circumference and live axle tail end, make live axle and actuation gear have the rotary steering function, moving iron core of hollow electromagnetism and ring-type movable contact dish are through the elastic support of return spring, thrust spring and supported spring, appropriate design between each component in addition, make the complete machine close look at the swing, do not have free clearance.Not only improve both sides' gear engagement performance, improved contact-ratio, and thoroughly solved positively engaging formula starter motor " mill teeth ", " apical tooth " and problem such as effectively supply district is less.Prolonged the working life of starter motor greatly.
2. the built-in electromagnetic switch block has replaced the external magnetic switch of positively engaging formula starter motor, has removed parts such as shift fork, shifting fork pin, the reliability of not only very high power supply, and make compact integral structure.
3. because of the housing intracavity space is bigger, thereby can suitably increase effective area of contact of movable contact dish and stationary contact, the contact adhesion of having avoided starter motor to cause under big current work state causes starter motor normal then scrap.
4. actuation gear and overrunning clutch take separated type to fix, and damage one of them and can not cause can't using of both fixed combination, bad can recover normal as long as replace.
5. overrunning clutch adopts fixing mode, does not do axially moving back and forth during starter motor work.
6. preceding step bearing, rear end bearing, clutch shaft bearing, second bearing, support according to each position, the hermetically sealed rolling bearing of stressed and operating condition choose reasonable different size, having prolonged the operating time of complete machine greatly, is that positively engaging formula starter motor can't be compared with the used copper sheathing of sliding gear starter.
7. except that actuation gear, other each action components all are installed in the housing.Be not subjected to the intrusion of dust and influence the performance of starter motor.
8. motor section is divided into the armature direct-drive motor, also can adopt the deceleration type motor, and then copper, iron material can descend at double than positively engaging formula starter motor and sliding gear starter as adopting the deceleration type motor.
Description of drawings
Fig. 1 is the structural representation of the drive unit of the utility model starter motor.
Wherein, 1-housing, the 2-rotor, the 3-live axle, the 4-clutch driven plate, the 5-clutch driving plate, the 6-rotor shaft, the 7-electromagnetic coil, the hollow electromagnetism static iron core of 8-, the hollow electromagnetism of 9-moves iron core, stationary contact under the 10-, the last stationary contact of 11-, 12-ring-type movable contact dish, 13-ring-type movable contact dish supporting frame, 14-first collar, the 15-supporting frame, step bearing before the 16-, the 17-rear end bearing, the 18-actuation gear, the 19-damping spring, 20-driving disc damping spring, the 21-thrust spring, the 22-supported spring, the 23-return spring, the 24-step, 25-second collar, 26-the 3rd collar, 27-movable contact pressure spring, the 28-flywheel ring gear, the 29-bulge loop, 30-rotor shaft screw key, the straight key of 31-live axle, the 32-drive shaft detent hole, the 33-clutch shaft bearing, the 34-stator coil, the 35-brush that insulate, the 36-commutator, 37-second bearing, the 38-earthing brush, the 39-storage battery, 40-live axle screw key, the 41-contact making device.
Embodiment
Fig. 1 is the structural representation of the drive unit of the utility model starter motor, preceding step bearing 16 is equipped with in the inboard of housing 1 front end, and external diameter and housing 1 interference fit, rear end bearing 17 is equipped with at the rear portion of housing 1, and external diameter and housing 1 interference fit, the external diameter interference fit of the fore-end of internal diameter and clutch driven plate 4.The interior circle of clutch driven plate 4 is provided with the internal spiral key, live axle 3 is a multidiameter shaft, the tail end excircle of live axle 3 is a live axle screw key 40, the internal diameter of step bearing 16 before the front end of live axle 3 passes, form Spielpassung with bearing 16 internal diameters, and stretch out the front end outside of housing 1, live axle screw key 40 positions of rear end are deep into the screw key position of the inner circumference of clutch driven plate 4, and Spielpassung, the front and back strong point that preceding like this step bearing 16, rear end bearing 17 and clutch driven plate 4 turn round as live axle 3 together.Live axle 3 is by being set with hollow electromagnetism static iron core 8, electromagnetic coil 7, the moving iron core 9 of hollow electromagnetism, following stationary contact 10 behind the forward direction successively, going up stationary contact 11, ring-type movable contact dish 12 in the housing 1.The part that live axle 3 stretches out housing 1 front end is provided with the straight key 31 of live axle, actuation gear 18 cooperates suit with the straight key 31 of this position live axle, is set with damping spring 19 between the inner chamber of actuation gear 18 fore-ends and the front end of live axle 3 and actuation gear 18 can move axially.The 3rd collar 26 that is provided with stationary drive gear 18 foremost of live axle 3, the middle front end of live axle 3 be provided with successively can be spacing the step 24 and second collar 25.
Be provided with return spring 23 between the moving iron core 9 of hollow electromagnetism static iron core 8 and hollow electromagnetism, be provided with bulge loop 29 in the inner circumference of the moving iron core 9 of hollow electromagnetism, be provided with thrust spring 21 between second collar 25 and the bulge loop 29, be provided with supported spring 22 between bulge loop 29 and live axle 3 rear ends, the rear end of the moving iron core 9 of hollow electromagnetism is with annular movable contact dish supporting frame 13, be set with movable contact pressure spring 27 between the inner chamber of annular movable contact dish supporting frame 13 and the excircle at moving iron core 9 rear portions of hollow electromagnetism, be set with the ring-type movable contact dish 12 after insulation on the excircle of ring-type movable contact dish supporting frame 13.The tail end of the moving iron core 9 of hollow electromagnetism is provided with first collar 14, first collar 14 is fixed in ring-type movable contact dish 12 with the moving iron core 9 of hollow electromagnetism, the following stationary contact 10 and the last stationary contact 11 of a pair of symmetry is equipped with in the rear end of electromagnetic coil 7, following stationary contact 10 and last stationary contact 11 are fixed with housing 1 usefulness screw after insulating with housing 1.
Clutch driving plate 5 is equipped with in the rear end of clutch driven plate 4, the inner circumference of clutch driving plate 5 is provided with screw key, be provided with driving disc damping spring 20 between the tail end of clutch driving plate 5 and the supporting frame 15, constitute overrunning clutch by clutch driving plate 5 and clutch driven plate 4 during starter motor work, the middle front end of rotor shaft 6 is provided with rotor shaft screw key 30, rotor shaft 6 is by the internal diameter of the clutch shaft bearing 33 on the supporting frame 15, inner chamber through clutch driving plate 5 is deep in the live axle 3 rear end positioning holes 32, the rotor shaft screw key 30 of rotor shaft 6 freely cooperates with the inner circumference screw key of clutch driving plate 5, front end and positioning hole 32 Spielpassung, the rear end of rotor shaft 6 links to each other with rotor 2, and the rear end of rotor 2 is fixed on the rear end of housing 1 by second bearing 37.Overrunning clutch can adopt roller-type one way clutch, Retchet gear type overrunning clutch, spring overrunning clutch or friction disk type one-way clutch, concrete which kind of clutch that adopts, can be according to the size of starter motor power, the size of moment of torsion, relevant condition such as the volume of starter motor and deciding.
Can be expressed as among the figure internal-combustion engine that Weifang Diesel Engine Plant produces supporting starter motor, wherein, actuation gear 18 is with now the actuation gear number of teeth, the modulus of usefulness are identical, and because of Retchet gear type overrunning clutch long service life simple in structure, thereby overrunning clutch adopts the Retchet gear type overrunning clutch.This clutch driving plate 5 part that combines with clutch driven plate 4 is a ratchet structure, clutch driving plate 5 is 50mm with the diameter of clutch driven plate 4, housing 1 adopts ironcasting or aluminium diecasting, for the ease of machining, housing 1 can fixedly be divided into two joint designs in the back cross section of hanging feet according to starter motor, and the fastening mode of available screw is combined, the motor that is complementary with internal-combustion engine of the optional usefulness of motor part, rotor shaft screw key 30 should cooperatively interact with the internal spiral key of clutch driving plate 5, preceding step bearing 16 models are 304, rear end bearing 17 models are 1008, clutch shaft bearing 33 models are 204, bearing 37 models are 301, movable contact dish 12, following stationary contact 10 and last stationary contact 11 are selected high-quality red copper material for use, and the material of other each parts is with existing identical with the material of each corresponding part of starter motor.Live axle 3 and the moving iron core 9 of the hollow electromagnetism mechanical catching phenomenon that do not have.Should move freely under the effect of electromagnetic force, the axial displacement of actuation gear is 18mm.Reliable in order to power; movable contact dish 12 and following stationary contact 10; gap between the last stationary contact 11 should be 12～15mm; thrust spring 21 requires [coefficient of big; and be not set between the moving iron core 9 inner chamber bulge loops 29 of second collar 25 and hollow electromagnetism with almost having compression; the flexible scope of supported spring 22 should be greater than 5mm; to guarantee after electromagnetic coil 7 dead electricity under the reverse elastic force effect of return spring 23; ring-type movable contact dish 12 separates rapidly with last stationary contact 11 with following stationary contact 10; supported spring 22 is installed the weight sum that the static elastic force in back is larger than live axle 3 and actuation gear 18; effective closure that the elastic force of return spring 23 is guaranteed ring-type movable contact dish 12 and following stationary contact 10 and last stationary contact 11 with separate, return spring 23 requires [coefficient of less than thrust spring 21.
Further describe the working procedure and the working principle of the drive unit of the utility model starter motor below:
When internal-combustion engine is lighted a fire, electromagnetic coil 7 energisings produce magnetic force, the moving iron core 9 of hollow electromagnetism promotes the motion of thrust spring 21 forward end under the gravitation of hollow electromagnetism static iron core 8, thrust spring 21 promotes second collar 25 and travels forward, second collar 25 drives live axle 3 and actuation gear 18 rotates reach together, seek the chance with flywheel ring gear 28 engagements,, in engagement process, following situation can occur because of the relative position of actuation gear 18 and flywheel ring gear 28 is in stochastic regime.
Disposable smooth engagement: smoothly engagement be meant actuation gear 18 rotation reaches and internal combustion engine flywheel ring gear 28 teeth groove over against, do not mesh obstacle, be desirable engagement, this process be live axle 3 and actuation gear 18 together for the first time running shaft move.
The apical tooth state: so-called apical tooth state, the actuation gear 18 that is meant starter motor in engagement process and internal combustion engine flywheel ring gear 28 teeth and tooth over against, produced the engagement obstacle.This moment, the actuation gear 18 of live axle 3 front ends compressed damping springs 19, live axle 3 continues reach, 40 rotations of live axle screw key and the guiding of live axle 3 rears in course of action meanwhile, angle of actuation gear 18 rotations, the position of staggering apical tooth, find the chance of smooth engagement, at this moment damping spring 19 release elastic force make actuation gear 18 slip into internal combustion engine flywheel ring gear 28, both sides' gear engagement.The limited step 24 of live axle 3 front ends puts support limit in bearing 16, meanwhile, the moving iron core 9 of hollow electromagnetism drives ring-type movable contact dishes 12 and last stationary contact 11 and stationary contact 10 closures down, and at this moment motor rotates, this process be live axle 3 and actuation gear 18 together for the second time running shaft move.
When the apical tooth state, when the damping spring 19 of actuation gear 18 inner chambers reaches maximum compression stroke, and actuation gear 18 is during yet with 28 engagements of internal combustion engine flywheel ring gear; At this moment the moving iron core 9 of hollow electromagnetism is at the effect lower compression thrust spring 21 of electromagnetic force, continuing to drive ring-type movable contact dish 12 axial advancement contacts with last stationary contact 11 and following stationary contact 10, electric current is through the positive pole of storage battery 39, following stationary contact 10, ring-type movable contact dish 12, last stationary contact 11, stator coil 34, insulation brush 35, rotor commutator 36 and earthing brush 38 form the loop, rotor 2 rotates, power drives clutch driving plate 5 by the rotor shaft screw key on the motor shaft 6 30, clutch driving plate 5 drives clutch driven plate 4, drive the live axle screw key 40 of live axle 3 rears by the inner circumference screw key of clutch driven plate 4, thereby actuation gear 18 is rotated, rotate moment actuation gear 18 with the internal combustion engine flywheel ring gear 28 apical tooth position of staggering, damping spring 19 and thrust spring 21 discharge elastic force simultaneously, both sides' gear engagement, the motor high speed rotating is with engine starting.After the starting, electromagnetic coil 7 dead electricity, magnetic force disappears, the moving iron core 9 of the hollow electromagnetism of electromagnetism tends to retreat under the elastic force effect of return spring 23, ring-type movable contact dish 12 and last stationary contact 11 and stationary contact 10 disconnections down, the bulge loop 29 of moving iron core 9 inner circumferences of hollow electromagnetism promotes supported spring 22, live axle 3 and actuation gear 18 trends retreat, the moment of giving up the throne because of internal combustion engine flywheel ring gear 28 high speed rotating, both sides' gear fails to throw off at once, overrunning clutch was in and surmounted state this moment, final under the elastic force effect of return spring 23 live axle 3 and actuation gear 18 returns, the sound contact disconnects.The starting to internal-combustion engine is finished in the motor stall, this process be live axle 3 and actuation gear 18 together for the third time running shaft move.
Claims (4)
1, the drive unit of starter motor, mainly comprise: housing (1), live axle (3), clutch driven plate (4), clutch driving plate (5), rotor shaft (6), electromagnetic coil (7), hollow electromagnetism static iron core (8), hollow electromagnetism moves iron core (9) and contact making device (41), it is characterized in that: the front end of live axle (3) passes the front end that front end gear (16) is sleeved on housing (1), and stretch out housing (1), the afterbody of live axle (3) cooperates the inboard that is installed in clutch driven plate (4) by live axle screw key (40), the outside of clutch driven plate (4) is installed in the rear end of housing (1) by rear end bearing (17), the neutral position of live axle (3) is provided with step (24), rear end at the step (24) of live axle (3) is provided with second collar (25), outwards actuation gear (18) is installed foremost in the outside of housing (1) and at live axle (3) by the straight key of live axle (31), be provided with damping spring (19) between actuation gear (18) and the live axle (3), afterbody at housing (1) is coaxially installed with rotor shaft (6) by supporting frame (15) and live axle (3), the front end of rotor shaft (6) is equipped with clutch driven plate (4) by rotor shaft screw key (30) cooperation and matches and coaxial mounted clutch driving plate (5), be provided with driving disc damping spring (20) between clutch driving plate (5) and the supporting frame (15), coaxial package is free electrocardio magnetic static iron core (8) respectively in housing (1) and in live axle (3) outer end, the moving iron core (9) of hollow electromagnetism that is positioned at the inboard electromagnetic coil (7) of hollow electromagnetism static iron core (8) and is positioned at electromagnetic coil (7) proceeds posterolateral, the arranged outside that hollow electromagnetism moves iron core (9) has the contact making device of starter motor, be positioned between the moving iron core (9) of hollow electromagnetism static iron core (8) and hollow electromagnetism in the inboard of electromagnetic coil (7) and be provided with return spring (23), the inboard neutral position that hollow electromagnetism moves iron core (9) inwardly is provided with bulge loop (29).
2, the drive unit of starter motor according to claim 1 is characterized in that: be provided with supported spring (22) between the afterbody of bulge loop (29) and live axle (3), be provided with thrust spring (21) between bulge loop (29) and second collar (25).
3, the drive unit of starter motor according to claim 1 and 2, it is characterized in that: contact making device (41) comprising: following stationary contact (10), last stationary contact (11), ring-type movable contact dish (12), annular movable contact dish supporting frame (13), first collar (14) and movable contact pressure spring (27), the structure of contact making device (41) is: following stationary contact (10) and last stationary contact (11) respectively with the lower end and the upper end in the neutral position that is fixed on housing (1) inner chamber of housing (1) insulation, ring-type movable contact dish (12) is sleeved on the outer side surface of moving iron core (9) afterbody of hollow electromagnetism by annular movable contact dish supporting frame (13), the rear-most end that hollow electromagnetism moves iron core (9) outside is provided with first collar (14), and movable contact pressure spring (27) is arranged between first collar (14) and the ring-type movable contact dish supporting frame (13).
4, the drive unit of starter motor according to claim 2 is characterized in that: the [coefficient of of return spring (23) is less than the [coefficient of of thrust spring (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920101658U CN201391407Y (en) | 2009-02-24 | 2009-02-24 | Starter driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920101658U CN201391407Y (en) | 2009-02-24 | 2009-02-24 | Starter driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391407Y true CN201391407Y (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920101658U Expired - Fee Related CN201391407Y (en) | 2009-02-24 | 2009-02-24 | Starter driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391407Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168640A (en) * | 2010-02-26 | 2011-08-31 | 比亚迪股份有限公司 | Engine starter |
| CN102207053A (en) * | 2010-03-31 | 2011-10-05 | 比亚迪股份有限公司 | Engine starter |
| CN103121299A (en) * | 2011-11-17 | 2013-05-29 | 四川康源医疗设备有限公司 | Material stamping mechanism in a rotary tablet press |
| CN109883594A (en) * | 2019-03-28 | 2019-06-14 | 潍柴动力股份有限公司 | A kind of data acquisition testing stand for starter and the work of engine mechanical matching |
| CN112324599A (en) * | 2019-08-05 | 2021-02-05 | 浙江奥士弗机电有限公司 | Electric starting device for general gasoline engine |
-
2009
- 2009-02-24 CN CN200920101658U patent/CN201391407Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168640A (en) * | 2010-02-26 | 2011-08-31 | 比亚迪股份有限公司 | Engine starter |
| CN102207053A (en) * | 2010-03-31 | 2011-10-05 | 比亚迪股份有限公司 | Engine starter |
| CN102207053B (en) * | 2010-03-31 | 2013-01-30 | 比亚迪股份有限公司 | Engine starter |
| CN103121299A (en) * | 2011-11-17 | 2013-05-29 | 四川康源医疗设备有限公司 | Material stamping mechanism in a rotary tablet press |
| CN109883594A (en) * | 2019-03-28 | 2019-06-14 | 潍柴动力股份有限公司 | A kind of data acquisition testing stand for starter and the work of engine mechanical matching |
| CN109883594B (en) * | 2019-03-28 | 2021-02-23 | 潍柴动力股份有限公司 | Data acquisition test bed for matching work of starter and engine machinery |
| CN112324599A (en) * | 2019-08-05 | 2021-02-05 | 浙江奥士弗机电有限公司 | Electric starting device for general gasoline engine |
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Owner name: SHUOZHOU SANTONG YIDA AUTOMOBILE ELECTRIC APPLIANC Free format text: FORMER OWNER: JU SHUAI Effective date: 20130423 Free format text: FORMER OWNER: WU WEI Effective date: 20130423 |
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Effective date of registration: 20130423 Address after: 036002 Shanxi city of Shuozhou Province Zhang Liao Shuocheng District Road No. 8 Patentee after: Shuozhou three link Yida Automobile Electric Appliance Co., Ltd. Address before: 036002, No. 6, Ma Yi south road, Shuo Cheng, Shuozhou, Shanxi Patentee before: Ju Shuai Patentee before: Wu Wei |
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