CN108397527A - A kind of synchronous belt speed changer based on teeth limit - Google Patents
A kind of synchronous belt speed changer based on teeth limit Download PDFInfo
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- CN108397527A CN108397527A CN201810242849.8A CN201810242849A CN108397527A CN 108397527 A CN108397527 A CN 108397527A CN 201810242849 A CN201810242849 A CN 201810242849A CN 108397527 A CN108397527 A CN 108397527A
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- disk
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- slide block
- synchronous belt
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
- F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
- F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to transmission technology fields, more particularly to a kind of synchronous belt speed changer based on teeth limit, it includes shell, input shaft, output shaft, synchronous belt, synchronizing belt gear, arc-shaped guide rail, drive gear, servo motor, articulated joint, trigger mechanism etc., wherein the present invention drives the rotation of thread spindle to change the distance of two third disks by adjusting servo motor, and then change the distance for being hinged tooth to third disk axis, two neighboring distance between being hinged tooth is adapted to by the cooperation of hinged tooth and trigger mechanism again, finally synchronous belt is enable to transmit different drive ratios, speed changer can provide different rotating speeds according to different operating modes；It is compared to traditional gear-shift mechanism, synchronous belt speed changer can be to avoid the damage of grinding tooth caused by the engaging of the high intensity of grinding tooth between gear and gear, to extend the service life of speed changer while realize different transmission ratios using same group of toothed belt transmission structure as far as possible.
Description
Technical field
The invention belongs to transmission technology field more particularly to a kind of synchronous belt speed changers based on teeth limit.
Background technology
Speed changer traditional at present is produced by driving gear to be meshed with the change gear of different-diameter
Raw different transmission ratio exports different rotating speeds with this；But based on the speed changer of gear shift during long-time service,
Since the high intensity of grinding tooth engages between gear and gear, it is easy to cause the damage of grinding tooth and influence the use of speed changer
Service life can realize speed changing function in order to extend the service life of speed changer using synchronous belt, but since synchronous belt exists
Fixed transmission ratio can only be transmitted during transmission, so that common synchronous belt is cannot achieve and transmitted different transmission ratios, in order to
Can make synchronous belt realize transmit different transmission than come make the service life of speed changer extend and meanwhile as far as possible using same group it is same
Belt drive structure is walked to realize different transmission ratios, so just needing to design a kind of synchronous belt speed changer that speed change may be implemented.
The present invention design a kind of synchronous belt speed changer limited based on teeth solve the problems, such as it is as above.
Invention content
To solve drawbacks described above in the prior art, the present invention discloses a kind of synchronous belt speed changer limited based on teeth,
It is realized using following technical scheme.
A kind of synchronous belt speed changer based on teeth limit, it is characterised in that：It includes shell, input shaft, output shaft,
One disk, the first fixed ring, synchronous belt, synchronizing belt gear, arc-shaped guide rail, arc fixed plate, driving gear, third fixed ring,
Servo motor, the second fixed ring, first axle, Transmission gear, the second disk, guide block, the first spring, driving plate, thread spindle, third
Disk, axis hole, driving plate hole, articulated joint, drive rod, arc notch end, trigger mechanism；Wherein one end of input shaft passes through shell
And the one end for entering shell is equipped with the first disk；First fixed ring is installed on the periphery of the first disk；First fixed ring
It is mounted on by fixed plate on the bottom plate of shell；First disk is not connected in the disk of input shaft symmetrically installation, and there are two drivings
Plate；It is symmetrically opened in the disk of third disk there are two plate hole is driven, the centre position of disk is provided with axis hole；The inner headed face of axis hole
It is upper that there is screw thread；One end that two driving plates are not connected with the first disk drives plate hole and passes through accordingly across two third disks
One end the second disk is installed；Second fixed ring is installed on the periphery of the second disk；Second fixed ring passes through fixed plate
On the bottom plate of shell；Thread spindle is each passed through the axis hole of two third disks；Screw thread on axle hole inner circle face and screw thread
Screw thread on axis matches；Servo motor is mounted between two driving plates and positioned at the third disk and the close to the first disk
Between one disk；One end of thread spindle is connected with the motor shaft of servo motor.
Multiple articulated joints are equably installed on the periphery of third disk；One end of drive rod has arc notch end；
One end with arc notch end is not connected by hinged mode with corresponding articulated joint each drive rod；Close to first
There is the drive rod connected on the third disk of disk the one end at arc notch end to connect on the third disk of the second disk
There is the corresponding drive rod connect the one end at arc notch end to be connected by hinged mode；Passed through by two arc notch ends
Hinged mode constitutes a hinged tooth.
Two arc-shaped guide rails are symmetrically mounted at by arc fixed plate on the two sides in shell；The both ends pair of first axle
Claiming ground installation, there are two guide blocks；Guide block is mounted in corresponding arc-shaped guide rail；One end of first spring is mounted on guide block, another
End is on the internal face of corresponding arc-shaped guide rail；Guide block and the first spring are respectively positioned in arc-shaped guide rail；First axle passes through two
A guide block slides in two arc-shaped guide rails；It is nested with synchronizing belt gear and Transmission gear on the periphery of first axle；Transmit tooth
The side of wheel is connected with the side of synchronizing belt gear；One end of synchronous belt is mounted on the periphery of synchronizing belt gear, another
End is matched with multiple hinged teeth.
One end of output shaft passes through shell and is equipped with driving gear into one end of shell；Pacify on the periphery of output shaft
Equipped with third fixed ring；Third fixed ring is mounted on by fixed plate on the bottom plate of shell；Driving gear is mutually nibbled with Transmission gear
It closes.
It is provided with mechanism slot on the interior zone face of synchronous belt；There are teeth on the both sides groove face of mechanism slot；In synchronous belt equably
It is provided with multiple slide block slots；Slide block slot is communicated with mechanism slot；There are one trigger mechanisms for the installation of each slide block slot；Synchronizing belt gear with
Trigger mechanism matches；Hinged tooth is matched with trigger mechanism.
Above-mentioned trigger mechanism include fillet, sliding block, the first c-type spring, mechanism slot, slide block slot, triggering block, position limiting slide block,
Second spring, arc panel, position limiting slide block slot；Wherein sliding block is mounted in slide block slot；It is right respectively on the two sides at the both ends of sliding block
Claiming ground installation, there are two the first c-type springs；The corresponding side groove face phase of one end of the not connected sliding block of the first c-type spring and slide block slot
Connection；Sliding block is by the first c-type spring slide in slide block slot；Triggering block is mounted on the middle position of sliding block bottom surface and is located at
In mechanism slot；Triggering block one end has fillet；Position limiting slide block slot there are two symmetrically being opened on the two sides of triggering block；Two limits
Sliding block is separately mounted in corresponding position limiting slide block slot；Have between its corresponding position limiting slide block slot groove face of two position limiting slide blocks
One second spring；There are teeth on side of the position limiting slide block far from second spring；Teeth on position limiting slide block and mechanism slot side
Teeth on groove face match；Two arc panels are separately mounted on corresponding position limiting slide block；Hinged tooth respectively with arc panel and
Triggering block matches.
As being further improved for this technology, the center of circle and the center of circle of driving gear of the radian of arc-shaped guide rail are concentric.
As being further improved for this technology, between having between two sides side channel corresponding with the mechanism slot face of triggering block
Gap.
As being further improved for this technology, when second spring is not stretched, position limiting slide block is located in position limiting slide block slot.
As being further improved for this technology, the diameter of above-mentioned Transmission gear is more than the diameter of synchronizing belt gear.
First fixed ring is installed, then the first disk is fixed and the first circle in the present invention on the periphery of the first disk
Disk can rotate in the first fixed ring；Second fixed ring is installed, then the second disk is consolidated on the periphery of the second disk
Fixed and the second disk can rotate in the first fixed ring；Two driving plates are mounted on the first disk and justify across two thirds
Disk is connected with the second disk, then two driving plates are fixed；Input shaft can drive driving plate rotation through the first disk, drive
Movable plate can drive third disk and the second disc rotary；Multiple articulated joints are equably installed on the periphery of third disk,
One end of drive rod is connected with articulated joint, then third disk can drive drive rod rotation through articulated joint；It is hinged tooth in this way
Third disk rotary can be followed to transfer and coordinate drive synchronous belt rotation with trigger mechanism.
Thread spindle passes through the axis hole of third disk in the present invention, and one end of threaded rod is connected with the motor shaft of servo motor
It connecing, thread spindle is matched with the screw thread on axis hole, then when servo motor drives thread spindle rotation, under screw-thread fit, two
A third disk is close mobile to the direction of other side, and the angle between corresponding a pair of drive rod also becomes smaller, and is hinged tooth in this way and arrives
The distance of third disk axis increases；Likewise, when servo motor drives thread spindle to reversely rotate, hinged tooth to third disk
The distance of axis reduces；Such design can be such that synchronous belt transmits by the hinged tooth of adjusting to the distance of third disk axis
Transmission ratio increase or reduce.
Synchronizing belt gear and Transmission gear are installed, the side of Transmission gear is connected with the side of synchronous belt in first axle
It connects, then when synchronous belt drives synchronizing belt gear rotation, synchronizing belt gear can drive the rotation of Transmission gear；Transmission gear
Diameter be more than synchronizing belt gear diameter design be in order to increase synchronizing belt gear transmission transmission ratio.
Third fixed ring is installed, then output shaft is fixed and output shaft can be solid in third on the periphery of output shaft
Determine to rotate in ring；Transmission gear is meshed with driving gear, then Transmission gear can be through driving gear band to move output shaft rotation.
The design concentric with the center of circle of driving gear of the center of circle of the radian of arc-shaped guide rail is：When link tooth to third disk
When the distance change of axis, be linked tooth driving synchronous belt radius also and then change, then the axis of synchronizing belt gear with
The distance between axis of third disk also and then changes, in order to adapt to such variation and ensure Transmission gear always with driving
Gear is meshed, it is necessary that Transmission gear is around the periphery moving in rotation for driving gear, first axle and guide block and follows
It the track in the center of circle of Transmission gear and moves, then just needing the center of circle of the radian of arc-shaped guide rail and the center of circle of driving gear same
The heart.
The effect of first spring is that guide block movement can be made to reset.
In trigger mechanism, the both sides of sliding block are equipped with the first c-type spring, then when sliding block moves in slide block slot, the first C
Type spring can be such that sliding block movement resets.Triggering block is mounted on sliding block, then triggering block can be slided with movable slider.Triggering block
One end there is fillet, then hingedly tooth can convenient inlet/outlet mechanism slot.The effect of second spring is：Second spring can make
Position limiting slide block movement resets.Hinged tooth is matched with arc panel and triggering block respectively, then hingedly tooth after access mechanism slot, with
The rotation driving of third disk, hinged tooth stirs arc panel, and arc panel, which is extruded, to be strutted, then being extruded distracted arc panel
Position limiting slide block can be driven to be moved to away from the direction of second spring；After position limiting slide block stretches out position limiting slide block slot, position limiting slide block
On teeth will be meshed with the teeth on mechanism slot groove face, position limiting slide block is limited, and then triggering block and sliding block will no longer
It is mobile；Trigger mechanism is limited at this time, and hinged tooth can drive trigger mechanism to rotate, and then trigger mechanism drives synchronous belt rotation
Transmit energy.
The design with gap is to ensure triggering block between side channel corresponding with the mechanism slot face of the two sides of triggering block
In the process of moving, triggering block will not generate interference with the teeth on mechanism slot side channel face.
After input shaft is started by power unit to be rotated, input shaft is through the first disk, driving plate, third disk and is hinged
Head drives drive rod rotation；Hinged tooth makes hinged tooth pass through trigger mechanism band by being matched with the trigger mechanism on synchronous belt
Dynamic synchronous belt rotation；Synchronous belt moves output shaft rotation using synchronizing belt gear, Transmission gear and driving gear band.
When synchronous belt speed changer needs to obtain the output rotating speed of larger output rotating speed or smaller, synchronous belt is torn open first
Get off, then so that thread spindle is rotated by adjusting servo motor, thread spindle by with the screw-thread fit on axis hole, make two thirds circle
Disk is close to each other to be either located remotely from each other and then hinged tooth is made to increase or reduce to the distance of third disk axis；With obtain compared with
For big output rotating speed, under the screw-thread fit on thread spindle and axis hole, two third disks are close to each other, corresponding a pair of
Angle between drive rod also becomes smaller, and the distance for being hinged tooth to third disk axis in this way increases, the synchronous belt of driven portion
Radius and the radius ratio of synchronizing belt gear will will increase, then the transmission ratio that synchronous belt transmits increases, the rotating speed of output is also
It is promoted.Synchronous belt is installed again, during the installation process, on the one hand in the increased process of distance of hinged tooth to third disk axis
In, in order to adapt to the shortening of the distance between the axis of synchronizing belt gear and the axis of third disk, first axle can be in synchronous belt
Pulling under moved along the direction of arc-shaped guide rail, the first spring is compressed, and such synchronous belt can remain at the shape of tension
State；On the other hand, since the distance of hinged tooth to third disk axis increases, then the distance between two neighboring hinged tooth
With regard to increasing, in synchronous belt installation process, when hinged tooth coordinates again with the triggering block in trigger mechanism on synchronous belt, in order to suitable
Answer the increase of the distance between two hinged teeth, hinged tooth that there is one end of fillet by stirring triggering block, triggering block is made to slide
It to suitable distance, is continued deeper into mechanism slot under the drive of rotation then as hinged tooth, hinged tooth will stir arc
Shape plate, arc panel, which is extruded, to be strutted, and position limiting slide block can be driven to away from second spring then being extruded distracted arc panel
It moves in direction；After position limiting slide block stretches out position limiting slide block from slot, teeth on position limiting slide block will be with the tooth on mechanism slot groove face
Tooth is meshed, and position limiting slide block is limited, and then triggering block and sliding block will no longer be moved；Trigger mechanism is limited at this time, hinged tooth
Trigger mechanism can be driven to rotate.Finally input shaft is allowed to rotate again, it is synchronous with the trigger mechanism drive of hinged tooth cooperation
Energy is transmitted in band rotation, finally realizes and is adjusting synchronous belt not to the distance of third disk axis by the hinged tooth of change
Same transmission ratio makes synchronous belt speed changer export the rotating speed of different operating modes；Same group of synchronous belt drive mechanism is utilized in the present invention, is led to
It crosses and adjusts installation manually and realize different transmission ratios and the structure used in different transmission ratios is just the same, structure is not present
It is vacant, realize different drive ratios by replacing different gear so as to avoid in such as gear-shift mechanism.
Relative to traditional transmission technology, the present invention drives the rotation of thread spindle to change two by adjusting servo motor
The distance of a third disk, and then change hinged tooth to the distance of third disk axis, then pass through hinged tooth and trigger mechanism
Coordinate to adapt to distance between two neighboring hinged tooth, so that synchronous belt is transmitted different drive ratios, speed changer can root
Different rotating speeds is provided according to different operating modes；It is compared to traditional gear-shift mechanism, synchronous belt speed changer can be to avoid gear
The damage of grinding tooth caused by the engaging of the high intensity of grinding tooth between gear, to extend the service life while to the greatest extent of speed changer
Different transmission ratios may be realized using same group of toothed belt transmission structure.The configuration of the present invention is simple has preferable use
Effect.
Description of the drawings
Fig. 1 is speed changer overall schematic.
Fig. 2 is speed changer integral perspective schematic diagram.
Fig. 3 is speed changer entirety section schematic elevation view.
Fig. 4 is speed changer entirety section schematic top plan view.
Fig. 5 is speed changer internal structure schematic diagram.
Fig. 6 is synchronizing belt gear scheme of installation.
Fig. 7 is arc-shaped guide rail structural schematic diagram.
Fig. 8 is guide block scheme of installation.
Fig. 9 is the first disk scheme of installation.
Figure 10 is servo motor scheme of installation.
Figure 11 is third disc structure schematic diagram.
Figure 12 is drive rod structural schematic diagram.
Figure 13 is drive rod connection diagram.
Figure 14 is Partial synchronization band schematic diagram.
Figure 15 is Partial synchronization band section（One）Schematic diagram.
Figure 16 is Partial synchronization band section（Two）Schematic diagram.
Figure 17 is Partial synchronization band section（Two）Close-up schematic view.
Figure 18 is synchronous belt structural profile（One）Schematic diagram.
Figure 19 is synchronous belt structural profile（Two）Schematic diagram.
Figure 20 is trigger mechanism schematic diagram.
Figure 21 is triggering block structural schematic diagram.
Figure 22 is arc panel scheme of installation.
Figure label title：1, shell；2, input shaft；3, output shaft；4, the first disk；5, the first fixed ring；6, synchronous
Band；7, synchronizing belt gear；8, arc-shaped guide rail；9, arc fixed plate；10, gear is driven；12, third fixed ring；13, servo electricity
Machine；14, the second fixed ring；15, first axle；16, Transmission gear；17, the second disk；19, guide block；20, the first spring；21, it drives
Movable plate；22, thread spindle；23, third disk；24, axis hole；25, plate hole is driven；26, articulated joint；27, drive rod；28, arc lacks
Mouth end；29, fillet；30, trigger mechanism；31, sliding block；32, the first c-type spring；33, mechanism slot；34, slide block slot；35, it triggers
Block；36, position limiting slide block；37, second spring；38, arc panel；39, position limiting slide block slot.
Specific implementation mode
As shown in Figure 1, 2, it includes shell 1, input shaft 2, output shaft 3, the first disk 4, the first fixed ring 5, synchronous belt
6, synchronizing belt gear 7, arc-shaped guide rail 8, arc fixed plate 9, driving gear 10, third fixed ring 12, servo motor 13, second are solid
Determine ring 14, first axle 15, Transmission gear 16, the second disk 17, guide block 19, the first spring 20, driving plate 21, thread spindle 22,
Three disks 23, axis hole 24, driving plate hole 25, articulated joint 26, drive rod 27, arc notch end 28, trigger mechanism 30；Such as Fig. 1,4
Shown, wherein one end of input shaft 2 passes through shell 1 and is equipped with the first disk 4 into one end of shell 1；As shown in Fig. 3,9,
First fixed ring 5 is installed on the periphery of first disk 4；First fixed ring 5 is mounted on the bottom plate of shell 1 by fixed plate
On；As shown in Figure 10, the first disk 4 is not connected in the disk of input shaft 2 driving plate 21 there are two symmetrically installations；Such as Figure 11 institutes
Show, is symmetrically opened in the disk of third disk 23 there are two plate hole 25 is driven, the centre position of disk is provided with axis hole 24；Axis hole 24
Inner headed face on have screw thread；As shown in Figure 10, two driving plates 21 are not connected with one end of the first disk across two thirds circles
Disk 23 drives plate hole 25 accordingly and the one end passed through is equipped with the second disk 17；As shown in 9,10, the outer circle of the second disk 17
Second fixed ring 14 is installed on face；Second fixed ring 14 is mounted on by fixed plate on the bottom plate of shell 1；Thread spindle 22 is distinguished
Across the axis hole 24 of two third disks 23；Screw thread on 24 inner headed face of axis hole is matched with the screw thread on thread spindle 22；Servo
Motor 13 is mounted between two driving plates 21 and positioned between the third disk 23 and the first disk 4 of the first disk 4；Spiral shell
One end of line axis 22 is connected with the motor shaft of servo motor 13.
As shown in figure 11, multiple articulated joints 26 are equably installed on the periphery of third disk 23；Such as Figure 12,13 institutes
Show, one end of drive rod 27 has arc notch end 28；One end with arc notch end 28 does not pass through each drive rod 27
Hinged mode is connected with corresponding articulated joint 26；The drive rod 27 connected on the third disk 23 of the first disk 4 has
There is the one end at arc notch end 28 that there is arc with the corresponding drive rod 27 connected on the third disk 23 of the second disk 17
The one end at v notch v end 28 is connected by hinged mode；By two arc notch ends 28 one is constituted by hinged mode
A hinged tooth.
As shown in Fig. 4,6, two arc-shaped guide rails 8 are symmetrically mounted at the two sides in shell 1 by arc fixed plate 9
On；As shown in Figure 7,8, the both ends of first axle 15 are symmetrically installed there are two guide block 19；Guide block 19 is led mounted on corresponding arc
In rail 8；One end of first spring 20 is mounted on guide block 19, and the other end is mounted on the internal face of corresponding arc-shaped guide rail 8；It leads
Block 19 and the first spring 20 are respectively positioned in arc-shaped guide rail 8；First axle 15 slides on two arc-shaped guide rails 8 by two guide blocks 19
In；Synchronizing belt gear 7 and Transmission gear 16 are nested on the periphery of first axle 15；The side of Transmission gear 16 and synchronous belt tooth
The side of wheel 7 is connected；As shown in figure 5, one end of synchronous belt 6 be mounted on synchronizing belt gear 7 periphery on, the other end with it is more
A hinged tooth matches.
As shown in Fig. 1,4, one end of output shaft 3 passes through shell 1 and is equipped with driving gear 10 into one end of shell 1；
Third fixed ring 12 is installed on the periphery of output shaft 3；Third fixed ring 12 is mounted on the bottom plate of shell 1 by fixed plate
On；Driving gear 10 is meshed with Transmission gear 16.
As shown in Figure 14,18,19, mechanism slot 33 is provided on the interior zone face of synchronous belt 6；Have on the both sides groove face of mechanism slot 33
There are teeth；Multiple slide block slots 34 are equably provided in synchronous belt 6；Slide block slot 34 is communicated with mechanism slot 33；Each slide block slot 34
There are one trigger mechanisms 30 for installation；Synchronizing belt gear 7 is matched with trigger mechanism 30；Hinged tooth is matched with trigger mechanism 30.
As shown in figure 20, above-mentioned trigger mechanism 30 includes fillet 29, sliding block 31, the first c-type spring 32, mechanism slot 33, slides
Block slot 34, triggering block 35, position limiting slide block 36, second spring 37, arc panel 38, position limiting slide block slot 39；As shown in Figure 15,20,
Middle sliding block 31 is mounted in slide block slot 34；First c-type bullet there are two respectively symmetrically being installed on the two sides at the both ends of sliding block 31
Spring 32；One end of the not connected sliding block 31 of first c-type spring 32 is connected with the corresponding side groove face of slide block slot 34；Sliding block 31 passes through
First c-type spring 32 slides in slide block slot 34；As shown in figure 20, triggering block 35 is mounted on the middle position of 31 bottom surface of sliding block
And in mechanism slot 33；As shown in figure 21,35 one end of triggering block has fillet 29；It is symmetrically opened on the two sides of triggering block 35
There are two position limiting slide block slots 39；As shown in Figure 16,17,22, two position limiting slide blocks 36 are separately mounted to corresponding position limiting slide block slot
In 39；There are one second springs 37 between two 36 its corresponding 39 groove faces of position limiting slide block slot of position limiting slide block；Position limiting slide block
There are teeth on 36 sides far from second spring 37；Teeth on position limiting slide block 36 and the teeth phase on 33 side channel face of mechanism slot
Cooperation；Two arc panels 38 are separately mounted on corresponding position limiting slide block 36；Hinged tooth respectively with arc panel 38 and triggering block 35
It matches.
As shown in figure 3, the center of circle of the radian of arc-shaped guide rail 8 and the center of circle of driving gear 10 are concentric.
There is gap between side channel corresponding with mechanism slot 33 face of the two sides of triggering block 35.
When second spring 37 is not stretched, position limiting slide block 36 is located in position limiting slide block slot 39.
As shown in figure 3, the diameter of above-mentioned Transmission gear 16 is more than the diameter of synchronizing belt gear 7.
First fixed ring 5 is installed, then the first disk 4 is fixed and in the present invention on the periphery of first disk 4
One disk 4 can rotate in the first fixed ring 5；Second fixed ring 14 is installed on the periphery of second disk 17, then the
Two disks 17 are fixed and the second disk 17 can rotate in the first fixed ring 5；Two driving plates 21 are mounted on the first disk 4
Above and across two third disks 23 it is connected with the second disk 17, then two driving plates 21 are fixed；Input shaft 2 can be through
First disk 4 drives driving plate 21 to rotate, and driving plate 21 can drive third disk 23 and the second disk 17 to rotate；Third disk
Multiple articulated joints 26 are equably installed, one end of drive rod 27 is connected with articulated joint 26, then third on 23 periphery
Disk 23 can drive drive rod 27 to rotate through articulated joint 26；Being hinged tooth in this way can follow the rotation of third disk 23 to come and triggering
The cooperation of mechanism 30 drives synchronous belt 6 to rotate.
Thread spindle 22 passes through the axis hole 24 of third disk 23, the motor of one end and servo motor 13 of threaded rod in the present invention
Axis is connected, and thread spindle 22 is matched with the screw thread on axis hole 24, then when servo motor 13 drives thread spindle 22 to rotate,
Under screw-thread fit, two third disks 23 are close mobile to the direction of other side, the angle between corresponding a pair of drive rod 27
Become smaller, the distance for being hinged tooth to 23 axis of third disk in this way increases；Likewise, when servo motor 13 drives thread spindle 22 reversed
When rotation, the distance of hinged tooth to 23 axis of third disk reduces；Such design can be justified by the hinged tooth of adjusting to third
The distance of 23 axis of disk increases or reduces come the transmission ratio for making synchronous belt 6 transmit.
Synchronizing belt gear 7 and Transmission gear 16, the side of the side and synchronous belt 6 of Transmission gear 16 are installed in first axle 15
Face is connected, then when synchronous belt 6 drives synchronizing belt gear 7 to rotate, synchronizing belt gear 7 can drive the rotation of Transmission gear 16
Turn；The design that the diameter of Transmission gear 16 is more than the diameter of synchronizing belt gear 7 is to increase the transmission of the transmission of synchronizing belt gear 7
Than.
Third fixed ring 12 is installed, then output shaft 3 is fixed and output shaft 3 can be on the periphery of output shaft 3
It is rotated in third fixed ring 12；Transmission gear 16 is meshed with driving gear 10, then Transmission gear 16 can be through driving gear
10 drive output shaft 3 to rotate.
The design concentric with the center of circle of driving gear 10 of the center of circle of the radian of arc-shaped guide rail 8 is：When link tooth to third
When the distance change of 23 axis of disk, the radius for being linked the synchronous belt 6 of tooth driving also and then changes, then synchronizing belt gear 7
The distance between the axis of axis and third disk 23 also and then change, in order to adapt to such variation and ensure Transmission gear
16 are meshed with driving gear 10 always, it is necessary that periphery moving in rotation of the Transmission gear 16 around driving gear 10,
First axle 15 and guide block 19 and be followed by Transmission gear 16 the center of circle track and move, then just needing the arc of arc-shaped guide rail 8
The center of circle of degree and the center of circle of driving gear 10 are concentric.
The effect of first spring 20 is that the movement of guide block 19 can be made to reset.
In trigger mechanism 30, the both sides of sliding block 31 are equipped with the first c-type spring 32, then sliding block 31 moves in slide block slot 34
When dynamic, the first c-type spring 32 can be such that the movement of sliding block 31 resets.Triggering block 35 is mounted on sliding block 31, then triggering block 35 can
It is slided with band movable slider 31.One end of triggering block 35 has fillet 29, then hingedly tooth can convenient inlet/outlet mechanism slot 33.The
The effect of two springs 37 is：Second spring 37 can be such that the movement of position limiting slide block 36 resets.Hinged tooth respectively with arc panel 38 and tactile
Hair block 35 matches, then hingedly tooth drives after access mechanism slot 33 with the rotation of third disk 23, hinged tooth stirs arc
Shape plate 38, arc panel 38, which is extruded, to be strutted, and position limiting slide block 36 can be driven to away from then being extruded distracted arc panel 38
It moves in the direction of two springs 37；After position limiting slide block 36 stretches out position limiting slide block slot 39, the teeth on position limiting slide block 36 will be with machine
Teeth on 33 groove face of flute are meshed, and position limiting slide block 36 is limited, and then triggering block 35 and sliding block 31 will no longer be moved；At this time
Trigger mechanism 30 is limited, and hinged tooth can drive trigger mechanism 30 to rotate, and then trigger mechanism 30 drives the rotation of synchronous belt 6 to pass
Pass energy.
The design with gap is to ensure to touch between side channel corresponding with mechanism slot 33 face of the two sides of triggering block 35
Send out block 35 in the process of moving, triggering block 35 will not generate interference with the teeth on 33 side channel face of mechanism slot.
Specific implementation mode：After input shaft 2 is started by power unit to be rotated, input shaft 2 is through the first disk 4, driving
Plate 21, third disk 23 and articulated joint 26 drive drive rod 27 to rotate；Hinged tooth by with 30 phase of trigger mechanism on synchronous belt 6
Cooperation makes hinged tooth pass through trigger mechanism 30 and synchronous belt 6 is driven to rotate；Synchronous belt 6 is using synchronizing belt gear 7, Transmission gear
16 drive output shaft 3 to rotate with driving gear 10.
When 6 speed changer of synchronous belt needs to obtain the output rotating speed of larger output rotating speed or smaller, first by synchronous belt 6
Remove, then by adjust servo motor 13 make thread spindle 22 rotate, thread spindle 22 by with the screw-thread fit on axis hole 24, make
Two third disks 23 are close to each other be either located remotely from each other so that make hinged tooth to the distance increase of 23 axis of third disk or
Reduce；For obtaining larger output rotating speed, under the screw-thread fit on thread spindle 22 and axis hole 24, two third disks 23
Close to each other, the angle between corresponding a pair of drive rod 27 also becomes smaller, so hingedly distance of the tooth to 23 axis of third disk
Increase, the radius of the synchronous belt 6 of driven portion will will increase with the radius ratio of synchronizing belt gear 7, then what synchronous belt 6 transmitted
Transmission ratio increases, and the rotating speed of output is also just promoted.Synchronous belt 6 is installed again, during the installation process, on the one hand in hinged tooth to the
During the distance of three disks, 23 axis is increased, in order to adapt to the axis of synchronizing belt gear 7 and third disk 23 axis it
Between distance shortening, first axle 15 can be moved along the direction of arc-shaped guide rail 8 under the pulling of synchronous belt 6, the first spring 20
It is compressed, such synchronous belt 6 can remain at the state of tension；On the other hand, due to hinged tooth to 23 axis of third disk
Distance increase, then the distance between two neighboring hinged tooth also just increases, in 6 installation process of synchronous belt, hinged tooth with
When triggering block 35 on synchronous belt 6 in trigger mechanism 30 coordinates again, in order to adapt to the increase of the distance between two hinged teeth,
Hinged tooth has one end of fillet 29 by stirring triggering block 35, so that triggering block 35 is slided into suitable distance, then as hinge
It connects tooth to continue deeper under the drive of rotation in mechanism slot 33, hinged tooth will stir arc panel 38, and arc panel 38 is extruded
It struts, position limiting slide block 36 can be driven to be moved to away from the direction of second spring 37 then being extruded distracted arc panel 38；When
Position limiting slide block 36 stretches out position limiting slide block 36 after slot, and teeth on position limiting slide block 36 will be with the teeth phase on 33 groove face of mechanism slot
Engagement, position limiting slide block 36 is limited, and then triggering block 35 and sliding block 31 will no longer be moved；Trigger mechanism 30 is limited at this time, hinge
Connecing tooth can drive trigger mechanism 30 to rotate.Finally input shaft 2 is allowed to rotate again, the trigger mechanism 30 with the cooperation of hinged tooth
It drives the rotation of synchronous belt 6 to transmit energy, finally realizes and adjusted to the distance of 23 axis of third disk by the hinged tooth of change
The different drive ratios for saving synchronous belt 6, make 6 speed changer of synchronous belt export the rotating speed of different operating modes；It is same using same group in the present invention
6 transmission mechanism of band is walked, the structure used in realizing different transmission ratios and different transmission ratio by adjusting installation manually is complete
Complete the same, there is no the vacant of structure, and not simultaneous interpretation is realized by replacing different gears so as to avoid in such as gear-shift mechanism
Dynamic ratio.
In conclusion the main advantageous effect of the present invention is：The present invention drives thread spindle 22 by adjusting servo motor 13
Rotation change the distance of two third disks 23, and then change hinged tooth to the distance of 23 axis of third disk, then pass through
The cooperation of tooth and trigger mechanism 30 is hinged to adapt to distance between two neighboring hinged tooth, synchronous belt 6 is finally enable to transmit not
Same transmission ratio, speed changer can provide different rotating speeds according to different operating modes；It is compared to traditional gear-shift mechanism, it is synchronous
It can be to avoid the damage of grinding tooth caused by the engaging of the high intensity of grinding tooth between gear and gear, to extend with 6 speed changers
The service life of speed changer realizes different transmission ratios using same group of 6 drive mechanism of synchronous belt as far as possible simultaneously.The present invention
It is simple in structure, there is preferable using effect.
Claims (5)
1. a kind of synchronous belt speed changer based on teeth limit, it is characterised in that：It includes shell, input shaft, output shaft, first
Disk, synchronous belt, synchronizing belt gear, arc-shaped guide rail, arc fixed plate, driving gear, third fixed ring, is watched the first fixed ring
Take motor, the second fixed ring, first axle, Transmission gear, the second disk, guide block, the first spring, driving plate, thread spindle, third circle
Disk, axis hole, driving plate hole, articulated joint, drive rod, arc notch end, trigger mechanism；Wherein one end of input shaft pass through shell and
The first disk is installed into one end of shell；First fixed ring is installed on the periphery of the first disk；First fixed ring is logical
Fixed plate is crossed on the bottom plate of shell；First disk is not connected in the disk of input shaft symmetrically installation, and there are two drivings
Plate；It is symmetrically opened in the disk of third disk there are two plate hole is driven, the centre position of disk is provided with axis hole；The inner headed face of axis hole
It is upper that there is screw thread；One end that two driving plates are not connected with the first disk drives plate hole and passes through accordingly across two third disks
One end the second disk is installed；Second fixed ring is installed on the periphery of the second disk；Second fixed ring passes through fixed plate
On the bottom plate of shell；Thread spindle is each passed through the axis hole of two third disks；Screw thread on axle hole inner circle face and screw thread
Screw thread on axis matches；Servo motor is mounted between two driving plates and positioned at the third disk and the close to the first disk
Between one disk；One end of thread spindle is connected with the motor shaft of servo motor；
Multiple articulated joints are equably installed on the periphery of third disk；One end of drive rod has arc notch end；It is each
One end with arc notch end is not connected by hinged mode with corresponding articulated joint a drive rod；Close to the first disk
Third disk on the drive rod that connects there is the one end at arc notch end and connected on the third disk of the second disk
There is corresponding drive rod the one end at arc notch end to be connected by hinged mode；Passed through by two arc notch ends hinged
Mode constitute a hinged tooth；
Two arc-shaped guide rails are symmetrically mounted at by arc fixed plate on the two sides in shell；The both ends of first axle are symmetrically
There are two guide blocks for installation；Guide block is mounted in corresponding arc-shaped guide rail；One end of first spring is mounted on guide block, other end peace
On the internal face of corresponding arc-shaped guide rail；Guide block and the first spring are respectively positioned in arc-shaped guide rail；First axle is led by two
Block slides in two arc-shaped guide rails；It is nested with synchronizing belt gear and Transmission gear on the periphery of first axle；Transmission gear
Side is connected with the side of synchronizing belt gear；One end of synchronous belt be mounted on synchronizing belt gear periphery on, the other end with
Multiple hinged teeth match；
One end of output shaft passes through shell and is equipped with driving gear into one end of shell；It is equipped on the periphery of output shaft
Third fixed ring；Third fixed ring is mounted on by fixed plate on the bottom plate of shell；Driving gear is meshed with Transmission gear；
It is provided with mechanism slot on the interior zone face of synchronous belt；There are teeth on the both sides groove face of mechanism slot；It is equably provided in synchronous belt
Multiple slide block slots；Slide block slot is communicated with mechanism slot；There are one trigger mechanisms for the installation of each slide block slot；Synchronizing belt gear and triggering
Mechanism matches；Hinged tooth is matched with trigger mechanism；
Above-mentioned trigger mechanism includes fillet, sliding block, the first c-type spring, mechanism slot, slide block slot, triggering block, position limiting slide block, second
Spring, arc panel, position limiting slide block slot；Wherein sliding block is mounted in slide block slot；On the two sides at the both ends of sliding block respectively symmetrically
There are two the first c-type springs for installation；One end of the not connected sliding block of first c-type spring is connected with the corresponding side groove face of slide block slot
It connects；Sliding block is by the first c-type spring slide in slide block slot；Triggering block is mounted on the middle position of sliding block bottom surface and is located at machine
In flute；Triggering block one end has fillet；Position limiting slide block slot there are two symmetrically being opened on the two sides of triggering block；Two limits are slided
Block is separately mounted in corresponding position limiting slide block slot；Have one between its corresponding position limiting slide block slot groove face of two position limiting slide blocks
A second spring；There are teeth on side of the position limiting slide block far from second spring；Teeth on position limiting slide block and mechanism slot side channel
Teeth on face match；Two arc panels are separately mounted on corresponding position limiting slide block；Hinged tooth respectively with arc panel and tactile
Hair block matches.
2. a kind of synchronous belt speed changer based on teeth limit according to claim 1, it is characterised in that：Arc-shaped guide rail
The center of circle of radian and the center of circle of driving gear are concentric.
3. a kind of synchronous belt speed changer based on teeth limit according to claim 1, it is characterised in that：The two of triggering block
There is gap between side channel corresponding with the mechanism slot face of side.
4. a kind of synchronous belt speed changer based on teeth limit according to claim 1, it is characterised in that：Work as second spring
When being not stretched, position limiting slide block is located in position limiting slide block slot.
5. a kind of synchronous belt speed changer based on teeth limit according to claim 1, it is characterised in that：Above-mentioned transmission tooth
The diameter of wheel is more than the diameter of synchronizing belt gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242849.8A CN108397527A (en) | 2018-03-23 | 2018-03-23 | A kind of synchronous belt speed changer based on teeth limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810242849.8A CN108397527A (en) | 2018-03-23 | 2018-03-23 | A kind of synchronous belt speed changer based on teeth limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108397527A true CN108397527A (en) | 2018-08-14 |
Family
ID=63091617
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810242849.8A Pending CN108397527A (en) | 2018-03-23 | 2018-03-23 | A kind of synchronous belt speed changer based on teeth limit |
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| Country | Link |
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| CN (1) | CN108397527A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896263A (en) * | 2020-08-07 | 2020-11-06 | 中国航空工业集团公司沈阳空气动力研究所 | Grid finger type distortion generator |
| CN112503147A (en) * | 2020-12-02 | 2021-03-16 | 徐俊韬 | Belt pulley drive regulation control mechanism |
| CN112901735A (en) * | 2021-02-09 | 2021-06-04 | 孙萱泽 | Machining speed change mechanism capable of being regulated and controlled in large range |
| CN113719593A (en) * | 2021-09-02 | 2021-11-30 | 湖州晨翼五金有限公司 | Auxiliary connection equipment for transmission with driving belt pulley |
-
2018
- 2018-03-23 CN CN201810242849.8A patent/CN108397527A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896263A (en) * | 2020-08-07 | 2020-11-06 | 中国航空工业集团公司沈阳空气动力研究所 | Grid finger type distortion generator |
| CN112503147A (en) * | 2020-12-02 | 2021-03-16 | 徐俊韬 | Belt pulley drive regulation control mechanism |
| CN112901735A (en) * | 2021-02-09 | 2021-06-04 | 孙萱泽 | Machining speed change mechanism capable of being regulated and controlled in large range |
| CN112901735B (en) * | 2021-02-09 | 2024-04-05 | 山东圣利锻造有限公司 | Speed change mechanism capable of regulating and controlling speed for machining |
| CN113719593A (en) * | 2021-09-02 | 2021-11-30 | 湖州晨翼五金有限公司 | Auxiliary connection equipment for transmission with driving belt pulley |
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| CB02 | Change of applicant information |
Address after: 350015 Fujian Province Fuzhou Bonded Port Area Processing and Trade Zone Supervision Building Room 113 268 Fujian Dena Gear Co., Ltd. Applicant after: Ma Weiwei Applicant after: Sun Wengang Applicant after: Wang Jian Applicant after: Zhang Haibin Applicant after: Zhou Liping Applicant after: Zhou Qiaoyun Address before: 062650 Hebei Cangzhou Qingxian County Qingzhou town east ring road Hua Yi machine factory area Applicant before: Ma Weiwei Applicant before: Sun Wengang Applicant before: Wang Jian Applicant before: Zhang Haibin Applicant before: Zhou Liping Applicant before: Zhou Qiaoyun |
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Application publication date: 20180814 |
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| RJ01 | Rejection of invention patent application after publication |