CN203926489U - The friction clutch device with speed change commutation function - Google Patents
The friction clutch device with speed change commutation function Download PDFInfo
- Publication number
- CN203926489U CN203926489U CN201420277825.3U CN201420277825U CN203926489U CN 203926489 U CN203926489 U CN 203926489U CN 201420277825 U CN201420277825 U CN 201420277825U CN 203926489 U CN203926489 U CN 203926489U
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- clutch
- flywheel
- shaft
- bearing
- support
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Abstract
The utility model relates to a kind of clutch device, particularly a kind of friction clutch device with speed change commutation function.It comprises flywheel, flywheel shaft, driven disc, driven shaft, the 3rd bearing, it is characterized in that: also comprise clutch support, flip sleeve and friction cushion rubber, flywheel is arranged on clutch support by flywheel shaft, and clutch support is arranged in frame; Driven shaft is arranged in frame, the middle part of driven shaft is that cross section is that non-just circle is slide part, flip sleeve is enclosed within the slide part of driven shaft, its inner rim is that the slide part with driven shaft is corresponding consistent non-just round, driven disc and the 3rd bearing are fixed on flip sleeve, driven disc is perpendicular to flywheel disc, and friction cushion rubber is enclosed within the edge of driven disc, and gear shift fork is connected with shift control assembly with the outer ring of the 3rd bearing.The utility model is novel in design, simple in structure, has speed change commutation function concurrently, is applicable to being very much applied on the small-sized running mechanisms such as garden lawn machine, microtilling machine, snowplow.
Description
Technical field
The utility model relates to a kind of clutch device, the friction clutch device that particularly a kind of vertical effect variable speed commutates, and it is mainly applicable in the small-sized running mechanisms such as garden lawn machine, rotary cultivator, snowplow.
Background technique
Clutch is the important device in power transmission system on running mechanism, its Main Function is by closure and separated action, the steady shift speed change of auxiliary gear box, realization is to powerdriven control, make running mechanism starting, gearshift stable working, can also, being not related to the output of blocking power stop paying out motivation in the situation that, realize and stopping.But traditional clutch, in the speed-change process of running mechanism, is only that the gear shift of speed changer is helped out, and realize the speed change of running mechanism, must will have the participation of speed changer to realize.As need to coordinating gearbox, the friction clutch on automobile could realize the control to automobile variable speed.In some microminiature running mechanism fields, as microtilling machine, microminiature snowplow, lawn machine, microminiature sowing machine, also need at work walking or adjust the speed of travel, need equally clutch, as disclosed in Chinese patent 201120015880.1 " a kind of Mini-tiller clutch transmission structure ", it is to the use on microminiature running mechanism again after the simple conversion of motor vehicle friction clutch, disclosed gear change control device is the miniature version of automobile variable speed shift control apparatus substantially, realize the speed Control to microminiature running mechanism, need equally the participation of speed changer.
Automotive industry is through the development of centuries, and the very applicable automobile traveling speed of the structure of motor vehicle friction clutch and performance characteristics is fast, output power large, can use fully state by installing space.But microminiature running mechanism often low walking speed, low output power, the less installing space of complete machine individuality is limited.The disclosed clutch transmission structure of Chinese patent 201120015880.1 and whole relevant gear change control device, after being applied on the microminiature running mechanisms such as microtilling machine, have following defect: 1, the disclosed clutch of this patent and whole gear change control device complex structure, individual relative is larger, is not suitable for the feature that microminiature running mechanism overall design individuality is small and exquisite, installing space is narrow and small; 2, the disclosed clutch configuration of this patent is applicable to the feature that automobile traveling speed is high, output power is large, is not suitable for microminiature running mechanism walking speed low, the feature that output power demand is little; 3, complex structure, can cause cost of production higher.
Because above defect, there is considerable microminiature running mechanism not adopt clutch to add the power transmission arrangment of speed changer, directly by controlling the throttle of motor, control the output power of power, reach the walking of running mechanism is controlled, although this power transmission mode is simple in structure, but have following shortcoming: the gear control structure that 1, adds speed changer with clutch is compared, kinetic equation loss is high a lot, not energy-conservation; 2, the function oppositely not falling back.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of friction clutch device simultaneously with speed change commutation function simple in structure.
The utility model solves the problems of the technologies described above adopted technological scheme: this friction clutch device with speed change commutation function comprises flywheel, clutch shaft bearing, flywheel shaft, return springs, clutch for clutch control assembly, driven disc, driven shaft, the second bearing, the 3rd bearing, gear shift fork and gear are handled assembly, it is characterized in that: also comprise clutch support, flip sleeve and friction cushion rubber, described flywheel is arranged on clutch support by clutch shaft bearing and flywheel shaft, clutch support is arranged in frame, Flexible Reset body is arranged between frame and clutch support, clutch for clutch control assembly is connected with clutch support, described driven shaft is arranged in frame by the second bearing, and parallel with the disc of flywheel, be positioned on the diameter of axle of flywheel, the middle part of driven shaft is that cross section is non-just round slide part, described flip sleeve is enclosed within the slide part of driven shaft, its inner rim is that the slide part with driven shaft is corresponding consistent non-just round, described driven disc and the 3rd bearing are arranged on flip sleeve, driven disc is perpendicular to the disc of flywheel, described friction cushion rubber is enclosed within the edge of driven disc, and gear shift fork is connected with shift control assembly with the outer ring of the 3rd bearing respectively.
The structural relation of driven disc and the vertical contact friction of flywheel, not only can control the clutch of driven disc and flywheel but also can regulate driven disc and the position relationship of flywheel disc point of contact, by the control to both clutches, in the time of can realizing traditional friction clutch closure, can contact transferring power, when separated, can isolate transmission of power, the function of auxiliary shift speed change, by regulating the position relationship of point of contact, can realize mechanical speed change commutation function, when point of contact is during apart from flywheel center distance, driven disc rotating speed is fast, the machine-walking speed of walking is fast, when point of contact is near apart from flywheel circular distance, driven disc rotating speed is slow, the machine-walking speed of walking is slow, when point of contact moves to the another side in the center of circle, driven disc becomes and rotates backward, be that running mechanism is in the walking states that falls back.The effect of flip sleeve is the carrier that driven disc moves on the slide part of driven shaft, the just round structure of inner edge right and wrong of the cross section of driven shaft slide part and flip sleeve, can avoid driven disc, flip sleeve and driven shaft to occur circumferential relatively rotating between turning, but can realize axial relatively moving again.The effect of friction cushion rubber is contact flywheel, friction driving, and when cushion rubber damages simultaneously, it is convenient to change.The effect of gear shift fork and the 3rd bearing is, shift control assembly is connected by gear shift fork and bearing outer ring, both can mobile flip sleeve and the assemblying body of driven disc, and realize speed change and commutate, do not affect again the rotation of the 3rd bearing inner race, driven shaft, driven disc.Clutch support is the support of flywheel, and clutch for clutch control assembly, by the positioning control to clutch support, can be controlled the clutch position relation between flywheel and driven disc, and Flexible Reset body is the automatically reset controlling component of clutch support.
Flywheel shaft described in the utility model is fixed on clutch support, and clutch shaft bearing is enclosed within on flywheel shaft, and flywheel sleeve is in the outer ring of clutch shaft bearing, and flywheel is connected with power by belt.Flywheel directly forms rotating annexation by bearing and flywheel shaft, and flywheel just can directly be connected with power, avoids the multistage transmission of power, and cpable of lowering power loss simultaneously can simplified structure.
Location, clutch support described in the utility model one end, the other end rotates, and the positioning end of this clutch support has pillar, and pillar is arranged in frame, and described clutch for clutch control assembly is connected with the rotation end of clutch support.Pillar is the rack-mounted connected element of clutch support, is again the strong point that clutch support rotates, and this structural design can be simplified the structure of flywheel clutch supporting part greatly.
Flexible Reset body described in the utility model is extension spring, and this extension spring one end is connected to the rotation end of clutch support, and the other end is connected in frame.Extension spring is a kind of elastomer simple in structure, can control the rotation of clutch support at extension spring and clutch for clutch control assembly, realize to flywheel and friction disk from the control with closing.
The slide part cross section of driven shaft described in the utility model is regular hexagon, and regular hexagon is the non-just round preferable shape in slide part cross section, and circularity is moderate, and not only side but also not too round not too, was conducive to process in the above splined shaft tooth.
On driven shaft described in the utility model, there is splined shaft tooth, its effect is that splined shaft tooth is directly processed on driven shaft, can be in the situation that not needing to increase driving gear in addition by transmitting and rotate with the engagement of next stage gear, just can realize the transmission of rotating, can simplified structure.
Gear shift fork described in the utility model comprises guide collar, guiding piece, dwang, dwang support and gear connecting base, described dwang is arranged in frame by dwang support, the inner that the fixed end of guiding piece is connected with dwang connects, rotating end is connected with guide collar, guide collar is enclosed within the outer ring of the 3rd bearing, and gear connecting base is connected with shift control assembly.Can be the depths that is delivered to clutch of shift control assembly generation shift control by dwang, these modular constructions are fairly simple simultaneously.
The beneficial effects of the utility model are: 1, the utility model is on the architecture basics of original friction clutch, the transmission way of contact face-to-face, parallel between flywheel in prior art and driven disc, change into the transmission way of contact vertical between driven disc of the present utility model and flywheel, make friction clutch of the present utility model not only there is clutch action of the prior art, make the utlity model has the function of speed change commutation simultaneously, that is, making running mechanism have adjustment can gait of march and select the function that falls back; 2, the loss of the utility model torque transmitting is little, customer service prior art at power transmission process middle gear, report to the leadship after accomplishing a task, multistage transmission, complex structure, the problem that output power loss is large; 3, combine light, take up room littlely, be applicable to very much application, be arranged on small-sized running mechanism; 4, compared with prior art, stable drive, the phenomenon of dragging gear to flutter while particularly there is no transmission; 5, the required precision of correlated parts is not high, there is no the high-precision manufacture requirement of speed changer, and simple in structure, and cost reduces obviously.
The utility model is applicable to being applied on the small-sized running mechanisms such as garden lawn machine, rotary cultivator, snowplow very much, and be also applicable to being applied in some other provides power by motor simultaneously, and operation mechanism needs on the small-sized working machine device of speed change commutation.
Accompanying drawing explanation
Fig. 1 is that three-dimensional structure diagram is looked on the utility model left side.
Fig. 2 is that three-dimensional structure diagram is looked on the utility model right side.
The structural representation of the present utility model of looking when Fig. 3 is microtilling machine horizontal positioned.
Fig. 4 is that flip sleeve mounting connection structure is related to schematic diagram.
Fig. 5 is stereochemical structure exploded view of the present utility model.
Fig. 6 is flywheel underside view of the present utility model.
Fig. 7 is the structural representation of gear shift fork of the present utility model.
Fig. 8 is gear of the present utility model and turns to schematic diagram.
Driven disc when Fig. 9 is the first gear, driving gear, tire turn to schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The present embodiment is a kind of friction clutch with speed change commutation function being arranged on microtilling machine.
As shown in the figure shown in 1,2,3,4,6, the appearance profile of clutch support 1 is square, the positioning end of clutch support 1 is that pillar 2 is installed on gulde edge, the square edge of outstanding clutch support 1, two ends of pillar 2, and be arranged in the pillar hole 301 of frame 3, clutch support 1 can be take pillar 2 as fulcrum rotation; There is a through hole 101 at the center of clutch support 1, there is screw thread one end of flywheel shaft 4, flywheel shaft 4 is through through hole 101, fastening by nut 5, be arranged on clutch support 1, the axle center of flywheel 6 is bearing holes 601, and clutch shaft bearing 7 is arranged in bearing hole 601, and flywheel 6 is arranged on flywheel shaft 4 by clutch shaft bearing 7, clutch support 1 is and horizontal direction parallel that flywheel 6 is positioned at the top of clutch support 1 with flywheel 6.There are the gear teeth at the edge of flywheel 6, tooth belt 8 covers in the above, tooth belt 8 is enclosed within on the rotatingshaft 9 of motor simultaneously, motor can directly rotate by tooth belt 8 flywheel drivens 6 like this, without transferring by other gear, can reduce the progression of transmission, not only can simplified structure but also can improve transmission efficiency.
As Fig. 1, 2, 4, shown in 5, the two ends of driven shaft 10 are rounded portions 1001, two the second bearings 11 are arranged on respectively rounded portions 1001, driven shaft 10 is arranged on the driven axis hole 302 of frame 3 by the second bearing 11, the middle part of driven shaft 10 is slide parts 1002, its cross section is hexagon, slide part 1002 left sides are provided with splined shaft tooth 1003, splined shaft tooth 1003 is by directly processing on driven shaft 10, be used for meshing with the driving gear 12 of next stage, transmit and rotate, can simplify the structure of clutch device thus, it is parallel with the disc of flywheel 6 after driven shaft 10 installs, be positioned on the diameter of axle of flywheel 6.
As shown in Fig. 1,2,4,5, flip sleeve 13 is hollow columnar structures, and the internal surface in its cross section is the hexagon consistent with the cross section of the slide part 1002 of driven shaft 10, and flip sleeve 13 is enclosed within the slide part 1002 of driven shaft 10, can be on slide part 1002 parallel, but can not rotate in a circumferential direction.
As shown in Fig. 1,2,4,5, driven disc 14 is fixed on flip sleeve 13, after driven disc 14 installs, be in vertical position with flywheel 6 discs, friction cushion rubber 15 is enclosed within the outer rim of driven disc 14, when clutch support 1 closes, friction cushion rubber 15 can contact the disc of flywheel 6, and the disc of flywheel 6 has been designed to certain roughness; The 3rd bearing 16 is enclosed within on flip sleeve 13, with driven disc 14 in position side by side, the 3rd bearing 16, driven disc 14 and flip sleeve 13 can be on the slide part 1002 of driven shaft 10 synchronizing moving.
As shown in Figure 1,2,3, 4, in the present embodiment, Flexible Reset body is extension spring 17, and the rotation end that one end of this extension spring 17 is connected to clutch support 1 rotates on limit, and the other end is connected in frame 3, tie point is positioned at clutch support 1 position on the lower side, clutch support 1 can be pulled to below around pillar 2, can depart from driven disc 14 by flywheel driven 6, in the effect without other external force simultaneously, under the pulling force effect of extension spring 17, flywheel 6 and driven disc 14 are in leaving state.
As Fig. 1, 2, 4, shown in 5, clutch for clutch control assembly comprises clutch lever 18 and clutch bracing wire 19, clutch bracing wire 19 one end are connected on clutch lever 18, one end is connected on the rotation limit of clutch support 1, on clutch lever 18 handle tubes 27, be arranged on and pull clutch lever 18, can pull clutch bracing wire 19, the pulling force that the pulling force of clutch bracing wire 19 can overcome extension spring 17 pulls to clutch support 1 to move to left, simultaneously can flywheel driven 6 toward moving left, until contact with driven disc 14, while pulling clutch lever 18, the state that can pull flywheel 6 to contact in closure with driven disc 14.
As shown in Fig. 1,2,4,7, dwang support 20 is fixed in frame, above it, there is the first through hole 2001, in frame 3, there is the second through hole 303, dwang 21 is through the first through hole 2001 and the second through hole 303, and be arranged on the inside, and gear connecting base 22 is connected to the upper end of dwang 21 by its fixed end, and the rotation end that rotates gear connecting base 22 can rotate dwang 21, guiding piece 23 is vertically fixed on the inner of dwang 21 by its fixed end, the rotation end of guiding piece 23 is connected with guide collar 24, guide collar 24 is enclosed within the outer ring of the 3rd bearing 16, when dwang rotates 21, 23 of guiding piece rotates end along with rotation, and drive guide collar 24 and the 3rd bearing 16 to move, i.e. the 3rd bearing 16, flip sleeve 13, driven disc 14 can move on the slide part 1002 of driven shaft 10, but it moves is only moving axially along driven shaft 10, the inner ring of the 3rd bearing 13, flip sleeve 13, driven disc 14, the circumferential rotation of driven shaft 10 is also unaffected.
Shift control assembly is a shift rod 25, and the manipulation head 2501 of shift rod 25 is arranged on engage a gear panel 26, and the other end is connected to the rotation end of gear connecting base 22.When controlling the manipulation head 2501 of shift rod 25, can rotate the rotation end of moving gear connecting base 22, can drive accordingly dwang 21 rotations, can rotate the rotation end of guiding piece 23, can make the 3rd bearing 16, flip sleeve 13 and driven disc 14 move on the slide part 1002 of driven shaft 10, the cushion rubber 15 that can make to rub on driven disc 14 is moved with the contacting points position of flywheel 6, thereby can make the rotational velocity of driven disc 14 change.When point of contact is during apart from flywheel 6 center of circle distance, driven disc 14 rotating speeds are fast, the machine-walking speed of walking is fast, when point of contact is during apart from flywheel 6 center of circle near distance, driven disc 14 rotating speeds are slow, and the machine-walking speed of walking is slow, when point of contact moves to the another side in the center of circle, driven disc 14 becomes and rotates backward, and running mechanism is in the walking states that falls back.On engage a gear panel 26, shift rod 25 is positioned in several definite gears, that is in shift rod 25 hangs over certain gear time, friction cushion rubber 15 on driven disc 14 and the point of contact of flywheel 6 are just in certain definite position, the rotating speed of driven disc 14 will be certain definite numerical value, and running mechanism will advance or fall back with certain definite speed (being gear).
As shown in Figure 8,9, flywheel 6 continues ceaselessly to do counterclockwise rotation under the drive of power.
When driven disc 14 is under the control of shift rod 25 and gear shift fork 34, when the first gear 28, the point of contact of driven disc 14 and flywheel 6 is positioned at the top (plane with view 8 is described) in flywheel 6 centers of circle, driven disc 14 clockwise rotates (plane with view 9 is described) under the drive of flywheel 6, driving gear 12 rotates counterclockwise, driving gear 12 drives wheel shaft 32, tire 33 to do together counterclockwise and rotates, and drives microtilling machine 35 to be moved to the left, and advances forward.
When driven disc 14 is under the control of shift rod 25 and gear shift fork 34, when the second gear 29, the point of contact of driven disc 14 and flywheel 6 is positioned at the top in flywheel 6 centers of circle, driven disc 14 clockwise rotates under the drive of flywheel 6, driving gear 12 rotates counterclockwise, driving gear 12 drives wheel shaft 32, tire 33 to do together counterclockwise and rotates, drive microtilling machine 35 to advance forward, because the point of contact of the second gear 29 than the first gear 28 near the center of circle, the speed ratio rotating reduces, so the speed of the second gear 29 to the first gears 28 is slow, but marches forward.
When driven disc 14 is under the control of shift rod 25 and gear shift fork 34, when the 3rd gear 30, the point of contact of driven disc 14 and flywheel 6 is positioned at the below (plane with view 8 is described) in flywheel 6 centers of circle, driven disc 14 rotates counterclockwise under the drive of flywheel 6, driving gear 12 clockwise rotates, driving gear 12 drives wheel shaft 32, tire 33 to do together clockwise direction and rotates, and drives microtilling machine 35 to move right, and falls back backward.
When driven disc 14 is under the control of shift rod 25 and gear shift fork 34, when the 4th gear 31, the point of contact of driven disc 14 and flywheel 6 is positioned at the below in flywheel 6 centers of circle, driven disc 14 rotates counterclockwise under the drive of flywheel 6, driving gear 12 clockwise rotates, driving gear 12 drives wheel shaft 32, tire 33 is done together clockwise direction and is rotated, drive microtilling machine 35 to fall back backward, because the point of contact of the 4th gear 31 than the 3rd gear 30 away from the center of circle, it is large that the speed ratio rotating becomes, so the speed of the 4th gear 31 to the three gears 30 is fast, and still fall back backward.
Above are only embodiment of the present utility model, design of the present utility model is not limited to this, and all equivalence or simple change of doing according to described structure, feature and the principle of the utility model design, are included in the protection domain of the utility model patent.
Claims (7)
1. a friction clutch device with speed change commutation function, comprise flywheel, clutch shaft bearing, flywheel shaft, return springs, clutch for clutch control assembly, driven disc, driven shaft, the second bearing, the 3rd bearing, gear shift fork and gear manipulation component, it is characterized in that: also comprise clutch support, flip sleeve and friction cushion rubber, described flywheel is arranged on clutch support by clutch shaft bearing and flywheel shaft, clutch support is arranged in frame, Flexible Reset body is arranged between frame and clutch support, and clutch for clutch control assembly is connected with clutch support; Described driven shaft is arranged in frame by the second bearing, and parallel with the disc of flywheel, be positioned on the diameter of axle of flywheel, the middle part of driven shaft is that cross section is non-just round slide part, described flip sleeve is enclosed within the slide part of driven shaft, its inner rim is that the slide part with driven shaft is corresponding consistent non-just round, described driven disc and the 3rd bearing are arranged on flip sleeve, driven disc is perpendicular to the disc of flywheel, described friction cushion rubber is enclosed within the edge of driven disc, and gear shift fork is connected with shift control assembly with the outer ring of the 3rd bearing respectively.
2. the friction clutch device with speed change commutation function according to claim 1, it is characterized in that: described flywheel shaft is fixed on clutch support, clutch shaft bearing is enclosed within on flywheel shaft, and flywheel sleeve is in the outer ring of clutch shaft bearing, and flywheel is connected with power by belt.
3. the friction clutch device with speed change commutation function according to claim 1, it is characterized in that: described location, clutch support one end, the other end rotates, the positioning end of this clutch support has pillar, pillar is arranged in frame, and described clutch for clutch control assembly is connected with the rotation end of clutch support.
4. the friction clutch device with speed change commutation function according to claim 1, is characterized in that: described Flexible Reset body is extension spring, and this extension spring one end is connected to the rotation end of clutch support, and the other end is connected in frame.
5. the friction clutch device with speed change commutation function according to claim 1, is characterized in that: the slide part cross section of described driven shaft is regular hexagon.
6. the friction clutch device with speed change commutation function according to claim 1, is characterized in that: on described driven shaft, have splined shaft tooth.
7. the friction clutch device with speed change commutation function according to claim 1, it is characterized in that: described gear shift fork comprises guide collar, guiding piece, dwang, dwang support and gear connecting base, described dwang is arranged in frame by dwang support, the inner that the fixed end of guiding piece is connected with dwang connects, rotating end is connected with guide collar, guide collar is enclosed within the outer ring of the 3rd bearing, and gear connecting base is connected with shift control assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277825.3U CN203926489U (en) | 2014-05-28 | 2014-05-28 | The friction clutch device with speed change commutation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277825.3U CN203926489U (en) | 2014-05-28 | 2014-05-28 | The friction clutch device with speed change commutation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926489U true CN203926489U (en) | 2014-11-05 |
Family
ID=51822303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277825.3U Withdrawn - After Issue CN203926489U (en) | 2014-05-28 | 2014-05-28 | The friction clutch device with speed change commutation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033504A (en) * | 2014-05-28 | 2014-09-10 | 浙江欧耀机械有限公司 | Friction clutch device with speed changing and reversing function |
-
2014
- 2014-05-28 CN CN201420277825.3U patent/CN203926489U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033504A (en) * | 2014-05-28 | 2014-09-10 | 浙江欧耀机械有限公司 | Friction clutch device with speed changing and reversing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141105 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |