CN203784206U - Reduceradopting double-clutch structure - Google Patents
Reduceradopting double-clutch structure Download PDFInfo
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- CN203784206U CN203784206U CN201420105194.7U CN201420105194U CN203784206U CN 203784206 U CN203784206 U CN 203784206U CN 201420105194 U CN201420105194 U CN 201420105194U CN 203784206 U CN203784206 U CN 203784206U
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- disengaging gear
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- disengaging
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Abstract
The utility model relates to a reducer adopting a double-clutch structure. The reducer is provided with a source power input shaft, a power output shaft, a first clutch device, a second clutch device and a clutch control device, wherein the first clutch device and the second clutch device can axially move in engaging positions and disengaging positions; the first clutch device always performs engaging earlier than the second clutch device and performs disengaging later than the second clutch device; the first clutch device is axially arranged between a driven device and the second clutch device; the first clutch device and the second clutch device rotate coaxially and synchronously; and when the clutch control device operates the second clutch device to move axially to the engaging position from the disengaging position, the first clutch device is axially pushed to the engaging position from the disengaging position by the second clutch device. The reducer adopting the double-clutch structure has the advantages of smaller size, simpler structure, stable operation, capacity of guaranteeing the transmission ratio and the like.
Description
Technical field
The utility model relates to a kind of retarder, and this retarder application self-propelled machinery, adopts two clutch structures, realizes the steady transmission of retarder, reduces the impact force of retarder transmission part, the vibrations that alleviate complete machine in retarder clutch process.
Background technique
Retarder is mainly used in self-propelled machinery, for example advance mowing machine, tradition retarder adopts friction ring or friction plate transmission, the U. S. Patent that for example patent publication No. is US2003006074 discloses a kind of retarder, it comprises an actuator, driving friction ring is installed on actuator, also comprises a driven member, on driven member, be provided with driven friction ring.The power of actuator is from the belt wheel being connected with drivign belt, when clutch in conjunction with time driven friction ring move to vertically and the position that drives friction ring to be combined, drive friction ring by transmission of power to driven friction ring, driven friction ring drives output shaft rotation.This kind of kind of drive cost simple in structure is low, but it lacks reliability, and driving mechanism and follower easily produce relative sliding cannot guarantee velocity ratio.When self-propelled machinery runs into larger resistance, the two easily produces relative sliding, friction produces a large amount of heat energy, causes the intensity of part and patience to reduce, and even part deforms, if and directly use gear drive as clutch, when clutch is when the drive unit of high speed rotating is combined, the gear of clutch is easily because clashing into produce weares and teares, and this kind of phenomenon is called " beating tooth ", the more wearing and tearing of phenomenon that gears to engage and disengage " is beaten tooth " are just more serious, cause transmission poor effect or inefficacy.
For solving the problems referred to above of above-mentioned friction clutch and gears to engage and disengage, patent publication No. is that US201214550 discloses a kind of retarder, it has the worm gear 6 (referring to patent accompanying drawing 1) that reducing gear comprises that worm screw 5 and worm screw 5 coordinate, on worm gear, there is driving gear being arranged on output shaft 2 of can rotating freely, it has friction clutch mechanism 7, friction clutch mechanism comprise the conical friction ring 7A that is fixedly connected with output shaft 2 and with the conical friction ring 7B of worm gear synchronous rotary, with gears to engage and disengage mechanism 8, wherein gears to engage and disengage mechanism 8 can be toggled it to binding site from disengaging configuration vertically by clutch plectrum.In gears to engage and disengage mechanism 8, be provided for holding the trench structure of U-shaped pin, U-shaped pin jack be set on output shaft 2, during 6 engagement of gear mechanism 8 and worm gear U-shaped pin by transmission of power to output shaft 2.Shell fragment 10 is set on output shaft, shell fragment moves axially with gear mechanism 8, in the middle of the end of shell fragment and worm gear, conflict, worm gear 6 is axial outwards jumps and makes conical friction ring 7A and 7B now output shaft 2 is realized pre-transmission under the effect of friction ring in conjunction with (with reference to Fig. 4 and Fig. 5).Gear 8 continues the mobile position shell fragment 10 as for worm gear 6 engagements and enters in the cavity of gear mechanism 8.Now between worm screw 5 and output shaft 2, realize reliable gear transmission.With respect to the reducing gear that only depends on friction driving, this scheme had both guaranteed the velocity ratio of retarder, the impact force having produced while having reduced again retarder clutch.The shortcoming of this technological scheme is that friction clutch mechanism 7 needs axial mobile of shell fragment 10 to realize in conjunction with separated, its complex structure, and friction clutch mechanism 7 is arranged on worm gear outside, and 7 combinations of friction clutch mechanism are when separated, and worm gear need to move axially equally.
Therefore the utility model aims to provide a kind of new reducing gear, and the impact that it produces in the time of can reducing clutch on-off, can guarantee velocity ratio again, particularly can simplify the structure of retarder.
Model utility content
For addressing the above problem the utility model, provide a kind of pair of clutch structure retarder, comprising:
Driving source input shaft, and pto＝power take-off;
For holding the housing of all parts, the inside of housing arranges reducing gear, and reducing gear comprises drive unit and connects driven device with drive unit;
Described driven device is arranged on output shaft and rotates freely around output shaft;
The first engaging and disengaging gear, is synchronously arranged on output shaft rotationally, and can at binding site and disengaging configuration, move along output shaft;
When binding site, it is driven by driven device the first engaging and disengaging gear, simultaneously the first engaging and disengaging gear driver output axle;
The second engaging and disengaging gear, is synchronously arranged on output shaft rotationally, and can at binding site and disengaging configuration, move along output shaft;
The second engaging and disengaging gear is when binding site and driven device engagement, and driver output axle;
Clutch control device, it operates the first and second engaging and disengaging gear simultaneously and moves at binding site and disengaging configuration along output shaft;
The first engaging and disengaging gear, always early than the second engaging and disengaging gear combination, pass to the second engaging and disengaging gear to start rotating speed, and it is separated to be always later than the second engaging and disengaging gear by output shaft;
The first described engaging and disengaging gear is axially arranged between driven device and the second engaging and disengaging gear;
The first described engaging and disengaging gear and the second engaging and disengaging gear coaxially, synchronize and connect rotationally;
Clutch control device, operation the second engaging and disengaging gear axial from disengaging configuration, move to binding site time, the first engaging and disengaging gear by the second engaging and disengaging gear axial from disengaging configuration, be pushed to binding site.
Preferably, the first engaging and disengaging gear has the clutch driving unit being mated, described clutch actuator and driven device coaxially, synchronize and connect rotationally.
Preferably, the first described engaging and disengaging gear is arranged on the inside of the second engaging and disengaging gear with the consistent cavity of its profile, and described clutch driving unit is arranged in inner consistent with its profile cavity of driven device.
Preferably, described clutch driving unit and the first engaging and disengaging gear use friction structure transmission.
Preferably, described output shaft and active friction member are by being arranged on pin and pin-and-hole transmission on output shaft.
Preferably, described clutch driving unit is arranged in inner consistent with its profile cavity of driven device.
Preferably, the cavity built-in elastic member of driven device can flexiblely slide clutch driving unit in cavity along output shaft.
Preferably, at least one trench structure that the cavity setting of driven device can be slided for clutch driving unit.
Preferably, on the second engaging and disengaging gear, flexible positioning piece is set, the second engaging and disengaging gear is when binding site, and locating piece connects with the locating slot being arranged on output shaft.
Preferably, flexible positioning piece is U-shaped and is inserted in the mounting hole of the second engaging and disengaging gear arranged outside.
Preferably, clutch control device comprises the shift fork portion that is built in housing and extends to the operation panel outside housing, and described operation panel has elastic reset part, and the action of operation clutch is implemented in outside by operation panel.
The relative prior art of the utility model has the following advantages:
The relatively existing retarder of the utility model, do not need is that the one the second clutch structures arrange respectively control gear, the utility model adopts a clutch control device to operate the second engaging and disengaging gear, utilize the second engaging and disengaging gear to promote the first engaging and disengaging gear combination, so clutch structure is more simple simultaneously.
The first engaging and disengaging gear is arranged in the cavity of the second engaging and disengaging gear, and clutch driving unit is arranged in the cavity of driven device, and the shared volume of engaging and disengaging gear is reduced.
The first engaging and disengaging gear is prior to the second engaging and disengaging gear combination, and the first engaging and disengaging gear gives the second engaging and disengaging gear initial start rotating speed by output shaft, makes to reduce at the second engaging and disengaging gear of rear combination the phenomenon of " beating tooth ".
The second engaging and disengaging gear and driven device adopt stable engagement system transmission, therefore can guarantee velocity ratio.
The first clutch is arranged between the second clutch and driven device, and the combination of the first clutch relies on the promotion of the second clutch, and driven device is in the axial direction without movement, has increased the operation stability of speed reducer.
Therefore, retarder of the present utility model has less volume, and structure is simpler, stable, and can guarantee velocity ratio.
Accompanying drawing explanation
Fig. 1 is the two clutch structure retarder exploded view of embodiment.
Fig. 2 is two clutch structure retarder complete machine generalized sections.
Fig. 3 is the first engaging and disengaging gear and the second engaging and disengaging gear decomposing schematic representation.
Fig. 4 is that the first engaging and disengaging gear and the second engaging and disengaging gear are all in separated state schematic diagram.
Fig. 5 is the first engaging and disengaging gear bonding state schematic diagram.
Fig. 6 is the second engaging and disengaging gear bonding state schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
See figures.1.and.2, retarder 1 can be worked between driving source input shaft 11 and pto＝power take-off 12, and it is generally used in mechanical self-walking equipment.For example at motor mower medium power, by driving belt (not shown), be passed on the belt wheel 2 being arranged on input shaft, through retarder speed change, by pto＝power take-off 12 outputting powers.Routinely, by pto＝power take-off 12, driven the wheel that travels of mechanical self-walking equipment.In order to be suitable for walking, in the application of mechanical self-walking equipment, the rotating speed of output shaft 12 is less than the rotating speed of input shaft, and its torsion is greater than input shaft 11.
Retarder has housing 10, and housing is to link together by junction plane by two and half housings, and housing adopts alloy material to make conventionally; Retarder 1 also has reducing gear 13; The first engaging and disengaging gear 14 and the second engaging and disengaging gear 15, clutch control device 16.Reducing gear further comprises drive unit and driven device, drive unit is worm screw 18, and driven device is worm gear 19, and described worm screw is arranged on the lower end of input shaft 11, on described worm gear 19 end faces, have driving gear 191, turbine 19 is arranged on output shaft and can around output shaft 12, rotates freely.Clutch control device 16, handle the second engaging and disengaging gear axial when move binding site and disengaging configuration, worm gear 19 can be combined with the second engaging and disengaging gear or be separated.The first described engaging and disengaging gear 14 is the friction members with cone structure, and the first engaging and disengaging gear has the evagination conical surface 141, and same clutch driving unit 21 is also the friction member with cone structure, and clutch driving unit has the indent conical surface 211.Described clutch driving unit 21 and worm gear synchronous rotary, the first engaging and disengaging gear 14 and clutch driving unit 21 are all arranged on output shaft 12, and can be under the manipulation of clutch control device 16 mutually near or away from.The first engaging and disengaging gear 14 and clutch driving unit 21 in conjunction with time, the evagination conical surface 141 of the tapered front end part of the first engaging and disengaging gear 14 enters in the indent conical surface 211 of clutch driving unit 21 (with reference to Fig. 3).With reference to Fig. 4 the first engaging and disengaging gear 14 and the position of clutch driving unit 21 in being separated from each other.
The clutch chamber 151 with reference to Fig. 3 the second engaging and disengaging gear 15 with hollow, its internal surface is provided with a plurality of trench structures 152 vertically, on the first engaging and disengaging gear 14, be provided with the projection 212 extending vertically adapting with this trench structure 152, the first engaging and disengaging gear 14 is arranged in the second engaging and disengaging gear 15, and projection 212 connects in trench structure 152.Driven tooth 154 is set, driving gear 191 engagements of this driven tooth when its binding site and on worm gear 19 on the end face of the second engaging and disengaging gear 15.During the second engaging and disengaging gear 15 engagement, worm gear 19 drives the second engaging and disengaging gear to rotate, and the second engaging and disengaging gear drives from the first engaging and disengaging gear 14 rotations by above-mentioned trench structure 152, and the further driver output axle 12 of the first engaging and disengaging gear 14 rotates.The first engaging and disengaging gear 14 is by being arranged on the pin 121 driver output axles 12 on output shaft, and the main body of pin is inserted in the pin-and-hole 122 being arranged on output shaft, and pin-and-hole radially extends in output shaft, and the present embodiment arranges two pins that are parallel to each other 121.In the first engaging and disengaging gear 14, be provided with when holding chute 144, the first engaging and disengaging gear 14 of described pin and move vertically, described pin can, in the interior slip of this chute 144, be sold endwisely slipping of 121 pairs of the first engaging and disengaging gear 14 simultaneously and have leading role.Be adjacent to be provided with circular groove 155 on the second engaging and disengaging gear with driven tooth 154, described circular groove can be handled so that clutch is moved in disengaging configuration and binding site for clutch control device 16.On the other end of the second engaging and disengaging gear 15, be provided with U-shaped elastic component 22 assembly departments, this assembly department has 4 projections, through hole 157 is set in projection, and the shank 221 of described U-shaped elastic component 22 is inserted in described hole, at the barb that is also provided with a wedge shape 158 near top.When barb is crossed in U-shaped spring part bottom 222, this barb make its position keep stable can rollback, this assembly department is not limited to said structure and can also adopts and well known to a person skilled in the art trench structure etc.On output shaft, be also provided with for receiving the annular groove 123 of U-shaped elastic component 22 shanks 221.
Retarder is also provided with clutch control device 16, and it handles the first engaging and disengaging gear 14 and the second engaging and disengaging gear 15 moves to binding site from disengaging configuration.Clutch control device 16 comprises that the shift fork portion 161 being built in housing and the operation panel that is arranged on outside 17 form, and shift fork portion 161 installation directions are substantially vertical with the bearing of trend of output shaft.Shift fork portion 161 can rotate along several angle around its axle, and when shift fork portion rotates, the second engaging and disengaging gear 15 is followed shift fork portion 16 and shifted and move along output shaft.Described shift fork portion has upper and lower Liang Ge branch and between top set and inferior division, forms an opening for semicircular in shape roughly, has lower hook portion 164 vertically downward in top set, has upper hook portion 165 straight up on inferior division.Described upper hook portion 164 and lower hook portion 165 inserted the circular groove 155 of the second engaging and disengaging gear, and when shift fork portion 161 rotates, it can be stirred the second engaging and disengaging gear 15 and moves thereupon, and the first engaging and disengaging gear 14 is followed the second engaging and disengaging gear 15 and moved simultaneously.On housing 10, be provided with the mounting hole of shift fork portion 161, shift fork portion has extension rod 166 upwards, and extension rod is arranged on housing by bearing, and the top of extension rod extends to outside housing.In outside, be provided with operation panel 17, operation panel 17 connects with the extension rod 166 that is positioned at outside, and Returnning spring 171 is also set on operation panel 17, and Returnning spring 171 is for helping the second engaging and disengaging gear 15 to return to disengaging configuration.Thus, can in outside operation clutch, move and make it in combination or separated state by operation panel 17, when U-shaped elastic component 22 shanks 221 described in clutch is during in bonding state snap in the annular groove 123 on output shaft, prevent that the second engaging and disengaging gear 15 is along axle rollback.When using artificially operation panel 17 to make clutch separated, U-shaped elastic component 22 shanks 221 are deviate from annular groove 123, and now under the effect of Returnning spring 171, the second engaging and disengaging gear is got back to initial position.
Referring to figs. 1 through 3, direction relative with the second engaging and disengaging gear 15 on output shaft 12 is provided with worm gear 19, the periphery of worm gear has for receiving the wrom tooth 192 from worm screw power, worm screw 18 falls slow-revving process with the process of worm drive, the rotating speed of the output of described worm gear 19 is lower than worm screw, and the torsion of its output is greater than worm screw.When worm gear 19 arranges driving gear 191, the second engaging and disengaging gear and driving gear 191 engagement on the end face of the second engaging and disengaging gear.In the middle of described worm gear 19, have worm gear chamber 193 (with reference to Fig. 5), the groove 196 that cavity inner surface setting is extended is vertically provided with metal insert 4 in worm gear chamber 193.These metal insert 4 one external annulus 41 and internal ring wall 42 be set, on external annulus outer surface, arrange with described cavity in the raised line 43 that adapts of groove 196, raised line extends vertically, while having assembled, raised line connects in described groove 196.The internal surface of external annulus 41 arranges similar groove, and its bearing of trend is parallel with output shaft.Internal ring wall 42 has smooth surface, and internal ring wall inside is the through hole 44 that runs through metal insert, and metal insert is set on output shaft by this through hole.Worm gear 19 adopts Shooting Techniques to make in the present embodiment, and metal insert 4 is embedded in the worm gear chamber 193 in the middle of worm gear, and when worm drive worm gear rotates thus, 4 of metal embeddings can be synchronizeed with worm gear 19 rotation.Helical spring 46 is installed in metal insert 4, the elastic component sliding as clutch driving unit 21, its slightly larger in diameter is in the diameter of internal ring wall 42, and helical spring 46 is set in outside internal ring wall 42.Clutch driving unit 21 is set in metal insert, the length of clutch driving unit 21 is slightly less than the length of metal insert 4, its outer surface has strip slide block, and the groove of slide block and external annulus 41 internal surface settings connects and orders about clutch driving unit 21 and rotates with metal insert 4.One end of helical spring 46 props up the bottom of metal insert 4, the other end props up on the baffle plate 48 that clutch driving unit extends radially inwardly (with reference to Fig. 5), thus when the first engaging and disengaging gear 14 is shifted to clutch driving unit 21, clutch driving unit 21 can slide in 4 of metal embeddings, and along with being moved further of the first engaging and disengaging gear 14, the pressure that the conical surface 141 is subject to and frictional force also further increase.Therefore, clutch driving unit 21 can be rotated by conical friction face is passed to the first engaging and disengaging gear, and drives pto＝power take-off 12 together to rotate.
Above-mentioned turbine 19 power are from the worm screw 18 that is arranged on housing, and the driving wrom tooth 181 of worm screw bottom meshes with the wrom tooth 192 on worm gear.On housing 10, have the hole that worm screw passes worm screw, worm screw is arranged on hole by bearing.Outside housing, the end of worm screw is provided with belt wheel 2, from the power of internal-combustion engine or motor or other power plant, by driving belt, flows to worm screw 18.
With reference to Fig. 4 retarder in original state, the second engaging and disengaging gear 15 and the first friction member coaxially arrange, the axial length of the first engaging and disengaging gear 14 is greater than the second engaging and disengaging gear, the end face of the second engaging and disengaging gear 15 is stretched out in the end of the first engaging and disengaging gear 14, pin 121 is inserted on the hole of output shaft, and its two ends enter in the chute 144 of the first engaging and disengaging gear 14.Now in clutch control device 16 shift fork portions 161, hook portion 165 and lower hook portion 164 are stuck in the circular groove 155 of the first engaging and disengaging gear 14, control panel 17 rests in initial position under the effect of Returnning spring 171, shift fork portion 161 makes the second engaging and disengaging gear 14 remain on disengaging configuration, simultaneously, the first engaging and disengaging gear 14 is also in separated state, the conical surface 141 of the first engaging and disengaging gear 14 its evagination when disengaging configuration is small with the indent conical surface of clutch driving unit 21 211 distances, so the slight rotation of shift fork portion 161 can make the first engaging and disengaging gear 14 and clutch driving unit 21 combinations.Clutch driving unit 21 coaxially arranges clutch driving unit 21 with worm gear 19 and is set in metal insert 4, and above-mentioned helical spring 46 is between metal insert and clutch driving unit 21, and spring is in undeformed original state.Described clutch driving unit 21 length are less than the length of metal insert 4, its indent conical surface 211 is in worm gear chamber 193, the bottom of clutch driving unit 21 is to the bottom tool of metal insert 4 pitch space slidably, when first, second engaging and disengaging gear carry out separation or in conjunction with time clutch driving unit 21 along pitch space, horizontally slip.Retarder is when original state, external impetus passes to worm screw 18 by belt wheel 2, and worm screw drives worm gear to rotate, and clutch driving unit 21 also synchronously rotates, clutch driving unit 21 and the first engaging and disengaging gear are all in separated state, and output shaft 12 is also in static state.
With reference to Fig. 4, by operation panel 17 from external rotating clutch control device 16, the second engaging and disengaging gear 15 is stirred by shift fork portion 161, the second described engaging and disengaging gear axially moves to worm gear 19, the first engaging and disengaging gear 14 is promoted 15 by the second engaging and disengaging gear and equally axially to clutch driving unit 21, moves, and slides along chute 144 in described pin 121 two ends.The shank 221 of U-shaped elastic component radially struts perpendicular to output shaft 12, and 221 pairs of output shafts 12 of shank of U-shaped elastic component have chucking power.The front portion of the first engaging and disengaging gear 14 enters worm gear chamber 193, the first engaging and disengaging gear 14 evagination conical surfaces 141 of worm gear and conflicts with the indent conical surface 211 of clutch driving unit 21.Moving that described the first engaging and disengaging gear 14 is axial promotes clutch driving unit 21 in the interior slip of metal insert 4, and the distance that clutch driving unit 21 slides is more than or equal to the second engaging and disengaging gear 15 from disengaging configuration to the distance with the worm gear 19 required slips in engaging position.Helical spring 46 gradually reduces, and its elastic force acts on mineralization pressure on the conical contact face of the second engaging and disengaging gear 15, the first engaging and disengaging gear 14 and clutch driving unit 21.Under the rubbing action of the clutch driving unit 21 indent conical surfaces 211, the first engaging and disengaging gear 14 makes output shaft 12 start to rotate by pin 121, and the second engaging and disengaging gear 15 rotates with same angular velocity.Conventionally the first engaging and disengaging gear 14 and clutch driving unit 21 start in conjunction with time, the rotating speed of the first engaging and disengaging gear 14 and output shaft 12 is lower than the rotating speed of clutch driving unit 21, and along with the first engaging and disengaging gear 14 is moved further, the frictional force of conical contact face increases the also increase gradually of corresponding the first engaging and disengaging gear 14 rotating speeds with the increase of elastic force.
With reference to Fig. 5, from the state at Fig. 4 place, continue mobile the first engaging and disengaging gear 14, clutch driving unit 21 continues to move to the bottom of metal insert, the first engaging and disengaging gear 14 approaches with the rotating speed of clutch driving unit 21, and same clutch driving unit 21 approaches with the rotating speed of worm gear 19.Be moved further the state that the rotating speed of the first engaging and disengaging gear 14 and clutch driving unit 21, the second engaging and disengaging gear 15 can be consistent or approaching with the rotating speed of worm gear 19, now the first engaging and disengaging gear 14 and worm gear 19 engagements.During with driving gear 191 engagement under rotating speed, can not exist the phenomenon of " beating tooth " can extend the working life of gear.Formative gear transmission between its power worm screw 19 and output shaft 12 after the second engaging and disengaging gear and worm gear engagement, it has the feature of stability and high efficiency, can guarantee velocity ratio.The shank 221 of described U-shaped elastic component 22 enters in the annular groove 123 that is arranged on output shaft, the second engaging and disengaging gear is stuck on the position of its combination, the effect of the screens of U-shaped elastic component 22 can 171 pairs of operation panels 17 of balance Returnning spring pulling force, and prevent that engaging and disengaging gear from returning disengaging configuration.When adopting larger external force operating operation plate 17 separated clutch, U-shaped elastic component 22 can be deviate from smoothly again from annular groove 123, and now under the effect of Returnning spring, the second engaging and disengaging gear can return back to disengaging configuration.The Packed housing 10 of tool of retarder, fills oiling agent in housing, oiling agent makes the operation of clutch smooth and easy.
In a word, the relatively existing retarder of the utility model, do not need is that the one the second clutch structures arrange respectively control gear, the utility model adopts a clutch control device to operate the second engaging and disengaging gear, utilize the second engaging and disengaging gear to promote the first engaging and disengaging gear combination, so clutch structure is more simple simultaneously.
The first engaging and disengaging gear is arranged in the cavity of the second engaging and disengaging gear, and clutch driving unit is arranged in the cavity of driven device, and the shared volume of engaging and disengaging gear is reduced.The first engaging and disengaging gear is prior to the second engaging and disengaging gear combination, and the first engaging and disengaging gear gives the second engaging and disengaging gear initial start rotating speed by output shaft, makes to reduce at the second engaging and disengaging gear of rear combination the phenomenon of " beating tooth ".The second engaging and disengaging gear and driven device adopt stable engagement system transmission, therefore can guarantee velocity ratio.The first clutch is arranged between the second clutch and driven device, and the combination of the first clutch relies on the promotion of the second clutch, and driven device is in the axial direction without movement, has increased the operation stability of speed reducer.
The above embodiments are the utility model one preferred embodiments, but protection domain of the present utility model is not limited to this.In accordance with the utility model spirit, can also do equivalent change or replacement, for example: for the consideration of manufacture cost and structural strength, turbine of the present utility model adopts plastic materials to make, the interior metal insert that arranges in worm gear chamber 193, and clutch driving unit 21 is used metal to make; The second same engaging and disengaging gear 15 uses working of plastics to make, and the first engaging and disengaging gear 14 of its inside uses metalwork; By enlightenment of the present utility model, can know following improvement project, 1. worm gear 19 adopts metalwork manufacture, the chamber that the direct formation in worm gear chamber 193 can be slided for the second engaging and disengaging gear 15, thereby the minimizing structure complexity of omission metal insert 4; Thereby 2. adopt metalwork manufacture to reduce the structure complexity of the second engaging and disengaging gear 15 the second clutch piece and the first engaging and disengaging gear 14.Employing clutch driving unit 21 of the present utility model can be interior flexible flexible at worm gear 19, and the first engaging and disengaging gear 14 and two engaging and disengaging gear 15 are fixedly installed, clutch in conjunction with time the first engaging and disengaging gear 14 slide into worm gear inside.As a kind of conversion scheme, the first engaging and disengaging gear 14 can be set can flexiblely slide in the first engaging and disengaging gear, and clutch driving unit 21 is fixedly installed with worm gear 19, in the chamber that clutch driving unit 21 enters when clutch is tied.3. the indent conical surface can also be set on the first engaging and disengaging gear, the relative evagination conical surface that arranges on clutch driving unit.Therefore the utility model protection domain should be replaced all in protection domain of the present utility model be as the criterion all changes of being done according to the connotation of the utility model claim and equivalence of specification.
Claims (11)
1. pair clutch structure retarder, comprising:
Driving source input shaft, and pto＝power take-off;
For holding the housing of all parts, the inside of housing arranges reducing gear, and reducing gear comprises drive unit and the driven device connecting with drive unit;
Described driven device is arranged on output shaft and rotates freely around output shaft;
The first engaging and disengaging gear, is synchronously arranged on output shaft rotationally, and can at binding site and disengaging configuration, move along output shaft;
When binding site, it is driven by driven device the first engaging and disengaging gear, simultaneously the first engaging and disengaging gear driver output axle;
The second engaging and disengaging gear, is synchronously arranged on output shaft rotationally, and can at binding site and disengaging configuration, move along output shaft;
The second engaging and disengaging gear is when binding site and driven device engagement, and driver output axle;
Clutch control device, it operates the first and second engaging and disengaging gear simultaneously and moves at binding site and disengaging configuration along output shaft;
The first engaging and disengaging gear is always early than the second engaging and disengaging gear combination, and it is separated to be always later than the second engaging and disengaging gear;
It is characterized in that:
The first described engaging and disengaging gear is axially arranged between driven device and the second engaging and disengaging gear;
The first described engaging and disengaging gear and the second engaging and disengaging gear coaxially, synchronize rotation;
Described clutch control device, operation the second engaging and disengaging gear axial from disengaging configuration, move to binding site time, the first engaging and disengaging gear by the second engaging and disengaging gear axial from disengaging configuration, be pushed to binding site.
2. according to claim 1 pair of clutch structure retarder, is characterized in that, the first engaging and disengaging gear has the clutch driving unit being mated, described clutch driving unit and driven device coaxially, synchronize and connect rotationally.
3. according to claim 2 pair of clutch structure retarder, it is characterized in that, the first described engaging and disengaging gear is arranged in the cavity consistent with its profile of the inside of the second engaging and disengaging gear, and described clutch driving unit is arranged in inner consistent with its profile cavity of driven device.
4. according to claim 2 pair of clutch structure retarder, is characterized in that, described clutch driving unit and the first engaging and disengaging gear use friction structure transmission.
5. according to claim 3 pair of clutch structure retarder, is characterized in that, described output shaft and initiatively friction member are by being arranged on pin and the pin-and-hole transmission on output shaft.
6. according to claim 5 pair of clutch structure retarder, is characterized in that, described clutch driving unit is arranged in inner consistent with its profile cavity of driven device.
7. according to claim 3 pair of clutch structure retarder, is characterized in that, the cavity built-in elastic member of described driven device can flexiblely slide clutch driving unit in cavity along output shaft.
8. according to claim 7 pair of clutch structure retarder, is characterized in that, at least one trench structure that the cavity setting of described driven device can be slided for clutch driving unit.
9. according to claim 1 pair of clutch structure retarder, is characterized in that, on the second described engaging and disengaging gear, flexible positioning piece is set, and the second engaging and disengaging gear is when binding site, and locating piece connects with the locating slot being arranged on output shaft.
10. according to claim 8 pair of clutch structure retarder, is characterized in that, described flexible positioning piece is U-shaped and is inserted in the mounting hole of the second engaging and disengaging gear arranged outside.
11. according to claim 1 pairs of clutch structure retarders, it is characterized in that, described clutch control device comprises the shift fork portion being built in housing and extends to the operation panel outside housing, described operation panel has elastic reset part, and the action of operation clutch is implemented in outside by operation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105194.7U CN203784206U (en) | 2014-03-10 | 2014-03-10 | Reduceradopting double-clutch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105194.7U CN203784206U (en) | 2014-03-10 | 2014-03-10 | Reduceradopting double-clutch structure |
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| Publication Number | Publication Date |
|---|---|
| CN203784206U true CN203784206U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420105194.7U Withdrawn - After Issue CN203784206U (en) | 2014-03-10 | 2014-03-10 | Reduceradopting double-clutch structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913010A (en) * | 2014-03-10 | 2015-09-16 | 天佑电器（苏州）有限公司 | Double clutch structure reducer |
-
2014
- 2014-03-10 CN CN201420105194.7U patent/CN203784206U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913010A (en) * | 2014-03-10 | 2015-09-16 | 天佑电器（苏州）有限公司 | Double clutch structure reducer |
| WO2015135453A1 (en) * | 2014-03-10 | 2015-09-17 | 天佑电器（苏州）有限公司 | Reducer with double-clutch structure |
| CN104913010B (en) * | 2014-03-10 | 2017-09-05 | 天佑电器（苏州）有限公司 | Double clutch structure decelerators |
| US10006495B2 (en) | 2014-03-10 | 2018-06-26 | Suzhou Cleva Electric Appliance Co. Ltd. | Reducer with double-clutch structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20170905 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140820 Effective date of abandoning: 20170905 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |