CN212657191U - Flexible power protection decelerator of integral type cycloid pinwheel - Google Patents
Flexible power protection decelerator of integral type cycloid pinwheel Download PDFInfo
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- CN212657191U CN212657191U CN202020883863.9U CN202020883863U CN212657191U CN 212657191 U CN212657191 U CN 212657191U CN 202020883863 U CN202020883863 U CN 202020883863U CN 212657191 U CN212657191 U CN 212657191U
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- wheel
- pin
- speed reduction
- cycloid
- power protection
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Abstract
The utility model discloses a flexible power protection decelerator of integral type cycloid pinwheel, through drive assembly with deceleration assembly integral structure sets up, can reduce this decelerator's volume and weight, and the power transmission of drive assembly output extremely hollow crankshaft, relative circular motion cycloid motion is done with the needle tooth shell to hollow crankshaft, cycloid wheel, thereby circular motion is done to the needle tooth shell, later works as the needle tooth shell rotational speed is greater than during the planetary gear rotational speed, the needle tooth shell passes through power the roller transmits the besides-star wheel, the besides-star wheel passes through buffering predetermined breaking piece transmits to the wheel hub outer lane, drives wheel hub and makes the circumferential rotation, and then realizes big drive ratio, exports big moment of torsion. Therefore, the effects of small size, light weight and large transmission ratio of the integrated cycloidal-pin gear flexible power protection speed reducing device are obtained.
Description
Technical Field
The utility model relates to a power assembly field especially relates to a flexible power protection decelerator of integral type cycloid pinwheel.
Background
With the development of society, the enhancement of environmental awareness and the requirements of laws and regulations, new national standard electric bicycles and electric motorcycles are widely applied in work and life, but because certain road working conditions have greater requirements on the climbing capacity of the electric vehicles, a power system is required to output greater torque under certain power, and the braking and decelerating effects of the pin gear cycloid wheel on the overall speed reducer can be prevented when the motor stops outputting power. Therefore, the new national standard electric bicycle and electric motorcycle needs a power speed reducer with small volume, light weight and large transmission ratio.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a flexible power protection decelerator of integral type cycloid pinwheel small, light in weight, drive ratio are big.
In order to achieve the purpose, the flexible power protection speed reducing device for the integral cycloid pinwheel comprises a speed reducing component, a driving component and a fork shaft, wherein the speed reducing component and the driving component are arranged in an integral structure;
the speed reduction component comprises a drum cover, a brake, a hollow crankshaft, a cycloidal gear, a pin, a needle gear shell, an outer star wheel, a roller and a buffering preset fracture piece, the drum cover is rotationally connected with the horizontal fork shaft through a first rotating piece and is fixedly connected with the frame, the brake is rotationally connected with the horizontal fork shaft, and is fixedly connected with the frame, the brake is matched with the drum cover, one end of the hollow crankshaft is fixedly connected with the driving component, the other end of the hollow crankshaft is fixedly connected with the cycloidal gear through a second rotating piece, one end of the pin is fixedly connected with the shell on the driving component, the other end of the pin penetrates through the through hole on the cycloid wheel, the number of the pins is at least one, the pin gear shell is sleeved outside the cycloid wheel and is in clearance fit with the cycloid wheel;
the inner circle of pin wheel housing is the envelope curve, and with the outside curve match of cycloid wheel, the outer lane of pin wheel housing with the besides-star gear rotates to be connected, a plurality of recesses have on the inner wall of besides-star gear, every the inner wall of recess all is provided with the roller, a plurality of recesses that are the circumference and distribute have on the outer wall of besides-star gear, every is located respectively to cushion predetermined fracture piece the inside of recess, every cushion predetermined fracture piece supports with the wheel hub outer lane and holds.
The outer edge of the cycloidal gear is provided with nine sunken parts, and the nine sunken parts are uniformly distributed on the outer edge of the cycloidal gear.
The inner wall of the pin gear shell is provided with ten bulges, and each bulge is in clearance fit with each sunken part on the cycloidal gear which does circular motion.
The quantity of the pins is six, and the six pins are circumferentially distributed on the cycloid wheel.
The number of the buffering preset breaking pieces and the number of the grooves are ten, and each buffering preset breaking piece is matched with each groove.
Wherein each buffering predetermined breaking piece is a nylon pin.
The speed reducing assembly further comprises springs, one ends of the springs are fixedly connected with the outer star wheel, the other ends of the springs are in rolling connection with the rollers, and the springs are located in the notches respectively.
The speed reduction assembly further comprises a side cover, the side cover is rotatably connected with the horizontal fork shaft through a third rotating part, and the side cover is fixedly connected with the outer ring of the wheel hub through a bolt.
The driving assembly comprises a motor ring, a front shell, a rear shell, a fixing piece and a rotating piece, wherein the front end and the rear end of the motor ring are respectively provided with the front shell and the rear shell, the fixing piece is fixedly connected with the motor ring and is positioned in the motor ring, the rotating piece is arranged in the motor ring, one end of the hollow crankshaft penetrates through the front shell and is fixedly connected with the rotating piece.
The utility model discloses an integrated cycloidal pin wheel flexible power protection speed reducer, which is structurally integrated with a driving component through a speed reducing component; the drum cover is rotatably connected with the horizontal fork shaft through a first rotating piece and fixedly connected with the frame, the brake gate is rotatably connected with the horizontal fork shaft and fixedly connected with the frame, the brake gate is matched with the drum cover, one end of the hollow crankshaft is fixedly connected with the driving assembly, the other end of the hollow crankshaft is fixedly connected with the cycloidal gear through a second rotating piece, one end of the pin is fixedly connected with a shell on the driving assembly, the other end of the pin penetrates through a through hole on the cycloidal gear, the number of the pins is at least one, the pins are circumferentially distributed on the cycloidal gear, and the pin gear shell is sleeved outside the cycloidal gear and is in clearance fit with the cycloidal gear; the inner ring of the pin gear shell is an envelope curve and is matched with the outer curve of the cycloidal gear, the outer ring of the pin gear shell is rotationally connected with the outer star wheel, a plurality of notches are formed in the inner wall of the outer star wheel, the inner wall of each notch is provided with the roller, and when the rotating speed of the pin gear shell is greater than that of the outer star wheel, the pin gear shell drives the outer star wheel to rotate by transmitting power through the rollers; when the rotating speed of the pin gear shell is less than that of the outer star wheel, the roller does not transmit power. The outer star wheel is characterized in that a plurality of grooves distributed circumferentially are formed in the outer wall of the outer star wheel, the buffer parts are respectively arranged in the grooves, and each buffer part is abutted to the outer ring of the hub. The driving assembly and the speed reduction assembly are arranged in an integrated structure, the size and the weight of the speed reduction device can be reduced, the power output by the driving assembly is transmitted to the hollow crankshaft, the cycloid wheel and the needle gear shell perform relative circular cycloid motion, so that the needle gear shell performs circular motion, and then when the rotating speed of the needle gear shell is greater than that of the outer star wheel, the needle gear shell transmits the power to the outer star wheel through the roller, the outer star wheel transmits the buffering preset breaking piece to the outer ring of the hub to drive the hub to perform circular rotation, so that the large transmission ratio is realized, and the large torque is output. Therefore, the effects of small size, light weight and large transmission ratio of the integrated cycloidal-pin gear flexible power protection speed reducing device are obtained.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the integrated cycloidal-pin wheel flexible power protection speed reducer of the present invention.
Fig. 2 is a schematic view of a partial structure of the speed reduction assembly of the present invention.
Fig. 3 is a schematic structural diagram of the hollow crankshaft of the present invention.
Fig. 4 is a schematic structural view of the cycloid wheel of the present invention.
100-integrated cycloidal pin wheel flexible power protection speed reducer, 10-drive assembly, 11-motor ring, 12-front shell, 13-rear shell, 14-fixed piece, 15-rotating piece, 30-horizontal fork shaft, 40-speed reduction assembly, 41-drum cover, 42-brake, 43-hollow crankshaft, 44-cycloidal wheel, 441-through hole, 442-concave part, 45-pin, 46-pin shell, 462-bulge, 47-besides-star wheel, 471-roller, 472-spring, 473-concave part, 474-groove, 48-buffering predetermined breaking piece and 492-edge cover.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4, the present invention provides an integrated cycloidal-pin wheel flexible power protection speed reducer, which comprises a speed reducing component, a driving component and a fork shaft, wherein the speed reducing component and the driving component are integrated;
the speed reduction component comprises a drum cover, a brake, a hollow crankshaft, a cycloidal gear, a pin, a needle gear shell, an outer star wheel, a roller and a buffering preset fracture piece, the drum cover is rotationally connected with the horizontal fork shaft through a first rotating piece and is fixedly connected with the frame, the brake is rotationally connected with the horizontal fork shaft, and is fixedly connected with the frame, the brake is matched with the drum cover, one end of the hollow crankshaft is fixedly connected with the driving component, the other end of the hollow crankshaft is fixedly connected with the cycloidal gear through a second rotating piece, one end of the pin is fixedly connected with the shell on the driving component, the other end of the pin penetrates through the through hole on the cycloid wheel, the number of the pins is at least one, the pin gear shell is sleeved outside the cycloid wheel and is in clearance fit with the cycloid wheel;
the inner circle of pin wheel housing is the envelope curve, and with the outside curve match of cycloid wheel, the outer lane of pin wheel housing with the besides-star gear rotates to be connected, a plurality of recesses have on the inner wall of besides-star gear, every the inner wall of recess all is provided with the roller, a plurality of recesses that are the circumference and distribute have on the outer wall of besides-star gear, every is located respectively to cushion predetermined fracture piece the inside of recess, every cushion predetermined fracture piece supports with the wheel hub outer lane and holds.
In this embodiment, the tuning fork shaft can provide a mounting base for each component, and the first rotating member and the second rotating member are both bearings, wherein at least one pin is provided on the housing of the driving assembly, and each pin penetrates through the corresponding through hole on the cycloid wheel, so that the cycloid wheel is fixed on the housing of the driving assembly through the pins. The pin gear shell is sleeved outside the cycloid wheel, and the pin gear shell is sleeved outside the cycloid wheel and is in clearance fit with the cycloid wheel; the inner circle of pin wheel housing is the envelope curve, and with the outside curve match of cycloid wheel, the outer lane of pin wheel housing with the besides-star gear rotates to be connected, a plurality of recesses have on the inner wall of besides-star gear, every the inner wall of recess all is provided with the roller, a plurality of recesses that are the circumference and distribute have on the outer wall of besides-star gear, every is located respectively to cushion predetermined fracture piece the inside of recess, every cushion predetermined fracture piece supports with the wheel hub outer lane and holds.
Through drive assembly with the setting of speed reduction assembly integral structure, and install in wheel hub's inside, make the design of pin tooth cycloid wheel integral type flexible power decelerator is lighter-weighted, light in weight, small, and drive assembly with the coaxial setting in center of speed reduction assembly makes integral type cycloid wheel flexible power protection decelerator's structural design is simpler, reduction in production cost, reduces the volume simultaneously, is favorable to the installation.
When the output end of the driving assembly outputs power, the power is transmitted to the hollow crankshaft, the power is directly output through the hollow crankshaft, the cycloid wheel and the pin gear shell do relative circular cycloid motion at the moment, so that the pin gear shell does circular motion, and when the rotating speed of the pin gear shell is greater than that of the outer star wheel, the pin gear shell drives the outer star wheel to rotate through the power transmitted by the roller; when the rotating speed of the pin gear shell is less than that of the outer star wheel, the roller does not transmit power. Therefore, when the rotating speed of the pin gear shell is greater than that of the outer star wheel, the pin gear shell transmits power to the outer star wheel through the roller, the outer star wheel is transmitted to the outer ring of the hub through the buffering preset breaking piece, the hub is driven to rotate circumferentially, and then large transmission ratio is achieved, and large torque is output. Because the drum cover is fixedly connected with the frame, when the hub rotates, the drum cover rotates along with the hub, in the moving process, when the hub needs to be decelerated, acting force can be applied to the drum cover through the brake, the hub is decelerated, and a brake structure is formed through the matching of the brake and the drum cover, so that the braking effect is achieved.
Furthermore, the outer edge of the cycloid wheel is provided with nine recessed portions, and the nine recessed portions are uniformly distributed on the outer edge of the cycloid wheel. The inner wall of the pin gear shell is provided with ten bulges, and each bulge is in clearance fit with each sunken part on the cycloid wheel doing circular motion.
In this embodiment, the hollow crankshaft directly outputs power, at this time, the hollow crankshaft, the cycloid wheel and the pin gear case perform relative circular cycloid motion, the nine depressed parts are uniformly distributed on the outer edge of the cycloid wheel and are in clearance fit with the protrusions on the inner wall of the pin gear case, so that the transmission ratio of the integrated cycloid pin wheel flexible power protection speed reducer can be improved, the nine depressed parts on the cycloid wheel performing circular cycloid motion are in clearance fit with the ten protrusions on the pin gear case respectively, and the cycloid wheel drives the pin gear case to perform circular motion,
the transmission ratio is determined by the number of the sunken parts on the cycloid wheel and the number of the bulges on the pin gear shell, so that the transmission ratio is improved by respectively matching nine sunken parts on the cycloid wheel with ten bulges on the pin gear shell, the number of the cycloid wheels can be two, the two cycloid wheels are symmetrical relative to the axis of the hollow crankshaft, the two cycloid wheels are arranged on the pin in parallel, and the dynamic balance of the speed reducer can be further improved by arranging the two cycloid wheels.
Furthermore, the number of the pins is six, and the six pins are circumferentially distributed on the cycloidal gear.
In this embodiment, the six pins are circumferentially distributed on the cycloid wheel, so that the cycloid wheel can be more stably fixed on the housing of the driving assembly, and the cycloid wheel performs a circular cycloid motion relative to the pin gear housing and does not rotate relative to the frame.
Further, the number of the buffering preset breaking pieces and the number of the grooves are ten, and each buffering preset breaking piece is matched with each groove.
In this embodiment, the predetermined breaking piece of buffering is the nylon pin, the cross section of recess is the setting of semicircle structure, the predetermined breaking piece of buffering with the quantity of recess is ten, every the predetermined breaking piece of buffering is located every respectively the inside of recess the pin wheel shell is through the nylon pin with power transmission on the wheel hub outer lane, when driving the wheel hub and being the circumferencial rotation, the setting of nylon pin can make the flexible power protection decelerator of integral type cycloid pinwheel is the flexible structure design, can play buffering power transmission effect through the nylon pin, has good shock resistance and vibration ability for whole power decelerator operation is more steady, promotes whole power decelerator's security, can also reduce in addition the speed reduction subassembly with noise and the wearing and tearing that produce between the drive assembly.
Furthermore, the speed reduction assembly further comprises springs, one ends of the springs are fixedly connected with the outer star wheel, the other ends of the springs are in rolling connection with the rollers, and the springs are respectively located in the notches.
In this embodiment, the arrangement of the spring can play a role in buffering the acting force between the pin gear shell and the outer star wheel, and reduce the abrasion of the pin gear shell and the outer star wheel.
Further, the speed reduction assembly further comprises a side cover, the side cover is rotatably connected with the horizontal fork shaft through a third rotating part, and the side cover is fixedly connected with the outer ring of the wheel hub through a bolt.
In this embodiment, the third rotating member is a bearing, and the side cover can protect the driving assembly and the speed reducing assembly provided inside the hub.
Further, drive assembly includes motor circle, preceding shell, backshell, mounting and rotating member, both ends set up respectively around the motor circle preceding shell with the backshell, the mounting with motor circle fixed connection to be located the inside of motor circle, the rotating member is located the inside of motor circle, hollow crankshaft's one end runs through preceding shell, and with rotating member fixed connection.
In this embodiment, the motor ring is fixedly connected to the fixing member, a coil is wound inside the fixing member, the front housing is a front end cover, the rear housing is a rear end cover, the fixing member is a stator, the rotating member is a rotor, the motor ring, the front housing, the rear housing, the fixing member and the rotating member constitute a driving motor, and the driving motor is disposed inside the hub, so that the size of the reduction gear can be reduced.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. An integrated cycloidal pin gear flexible power protection speed reducer is characterized in that,
the speed reduction device comprises a speed reduction assembly, a driving assembly and a fork shaft, wherein the speed reduction assembly and the driving assembly are structurally integrated;
the speed reduction component comprises a drum cover, a brake, a hollow crankshaft, a cycloidal gear, a pin, a needle gear shell, an outer star wheel, a roller and a buffering preset fracture piece, the drum cover is rotationally connected with the horizontal fork shaft through a first rotating piece and is fixedly connected with the frame, the brake is rotationally connected with the horizontal fork shaft, and is fixedly connected with the frame, the brake is matched with the drum cover, one end of the hollow crankshaft is fixedly connected with the driving component, the other end of the hollow crankshaft is fixedly connected with the cycloidal gear through a second rotating piece, one end of the pin is fixedly connected with the shell on the driving component, the other end of the pin penetrates through the through hole on the cycloid wheel, the number of the pins is at least one, the pin gear shell is sleeved outside the cycloid wheel and is in clearance fit with the cycloid wheel;
the inner circle of pin wheel housing is the envelope curve, and with the outside curve match of cycloid wheel, the outer lane of pin wheel housing with the besides-star gear rotates to be connected, a plurality of recesses have on the inner wall of besides-star gear, every the inner wall of recess all is provided with the roller, a plurality of recesses that are the circumference and distribute have on the outer wall of besides-star gear, every is located respectively to cushion predetermined fracture piece the inside of recess, every cushion predetermined fracture piece supports with the wheel hub outer lane and holds.
2. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 1,
the outer edge of the cycloid wheel is provided with nine sunken parts, and the number of the sunken parts is nine, and the nine sunken parts are uniformly distributed on the outer edge of the cycloid wheel.
3. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 2,
the inner wall of the pin gear shell is provided with ten bulges, and each bulge is in clearance fit with each sunken part on the cycloid wheel doing circular motion.
4. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 1,
the number of the pins is six, and the six pins are circumferentially distributed on the cycloid wheel.
5. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 1,
the number of the buffering preset breaking pieces and the number of the grooves are ten, and each buffering preset breaking piece is matched with each groove.
6. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 5,
each buffering preset breaking piece is a nylon pin.
7. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 1,
the speed reduction assembly further comprises springs, one ends of the springs are fixedly connected with the outer star wheel, the other ends of the springs are in rolling connection with the roller, and the springs are located in the notches respectively.
8. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 1,
the speed reduction assembly further comprises a side cover, the side cover is rotatably connected with the horizontal fork shaft through a third rotating part, and the side cover is fixedly connected with the outer ring of the wheel hub through a bolt.
9. The integrated cycloidal pin wheel flexible power protection speed reduction device of claim 1,
the drive assembly comprises a motor ring, a front shell, a rear shell, a fixing piece and a rotating piece, wherein the front end and the rear end of the motor ring are respectively provided with the front shell and the rear shell, the fixing piece is fixedly connected with the motor ring and is positioned in the motor ring, the rotating piece is arranged in the motor ring, one end of the hollow crankshaft penetrates through the front shell and is fixedly connected with the rotating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883863.9U CN212657191U (en) | 2020-05-23 | 2020-05-23 | Flexible power protection decelerator of integral type cycloid pinwheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883863.9U CN212657191U (en) | 2020-05-23 | 2020-05-23 | Flexible power protection decelerator of integral type cycloid pinwheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212657191U true CN212657191U (en) | 2021-03-05 |
Family
ID=74748018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020883863.9U Expired - Fee Related CN212657191U (en) | 2020-05-23 | 2020-05-23 | Flexible power protection decelerator of integral type cycloid pinwheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212657191U (en) |
-
2020
- 2020-05-23 CN CN202020883863.9U patent/CN212657191U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |