CN110164284A - A kind of planetary gear train Teaching instrument of multistep speed regulation - Google Patents
A kind of planetary gear train Teaching instrument of multistep speed regulation Download PDFInfo
- Publication number
- CN110164284A CN110164284A CN201910409088.5A CN201910409088A CN110164284A CN 110164284 A CN110164284 A CN 110164284A CN 201910409088 A CN201910409088 A CN 201910409088A CN 110164284 A CN110164284 A CN 110164284A
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- Prior art keywords
- planetary gear
- gear train
- rotation axis
- support
- input shaft
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- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims description 40
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 21
- 230000006872 improvement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/70—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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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
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/10—Braking arrangements
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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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/36—Generation or transmission of movements for final actuating mechanisms with at least one movement being transmitted by a cable
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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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
- F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Fluid Mechanics (AREA)
- Retarders (AREA)
- Structure Of Transmissions (AREA)
Abstract
A kind of planetary gear train Teaching instrument of multistep speed regulation, including substrate, planetary gear train and input shaft, planetary gear train include the rotation axis of sun gear, planetary gear, gear ring, planet carrier and sun gear, and substrate is equipped with left support abutment and right fulcrum；Rotation axis and input shaft are coaxially disposed, the center of planet carrier is equipped with the axle sleeve coaxial with rotation axis, and the axle sleeve of planet carrier slides on rotation axis left end, and rotation axis left end is equipped with convex shoulder on the left of axle sleeve, for rotation axis right end through bearing support on right support abutment, axle sleeve is equipped with right sliding sleeve；In the middle part of input shaft through bearing support on left support abutment, input shaft right end is equipped with left sliding sleeve；Convex shoulder and input shaft right end are equipped with the first keyway, and the first convex key is equipped in left sliding sleeve, and axle sleeve and left sliding sleeve are equipped with the second keyway, are equipped with the second convex key in right sliding sleeve；Connecting shaft is equipped between rotation axis and input shaft.The teaching that the present invention can be used for planetary gear train transmission principle is shown, can be realized multistep speed regulation output, is conducive to increase teaching interest.
Description
Technical field
The present invention relates to a kind of planetary gear train Teaching instruments of multistep speed regulation.
Background technique
Planetary gear train refers to cyclic train only with one degree of freedom.Planetary gear train is a kind of close coupled type (i.e. output shaft
Line is overlapped with input axis) transmission device, and again use several identical planetary gears be evenly arranged on the four of centre wheel
Week.Planetary gear train is a kind of advanced gear drive, with compact-sized, small in size, quality is small, large carrying capacity, biography
Pass the advantages that power bracket and transmission range are big, running noises are small, the high-efficient and service life is long.
And in the course of mechanical speciality, planetary gear train is a critically important knowledge point, due to the biography of planetary gear train
Flowing mode and other gears are less identical, and in primary learning planetary gear train knowledge, major part all exists excessively abstract student
Problem, traditional teaching method be usually against on textbook schematic diagram or PPT explained, be difficult to allow student to have in this way
Intuitive and accurate impression.
In view of this, if be capable of providing a kind of teaching aid of planetary gear train class, and it is used for the religion of planetary gear train transmission principle
It learns and shows, this can provide great convenience with the planetary gear train knowledge point learnt in mechanical speciality for student and facilitate.
Summary of the invention
Present invention aims to overcome that the shortcomings that prior art and deficiency, the planetary gear train for providing a kind of multistep speed regulation show
Instrument is taught, the teaching that can be used for planetary gear train transmission principle is shown, while can be realized multistep speed regulation output, is conducive to increase teaching
Interest, and have the wider scope of application.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of planetary gear train Teaching instrument of multistep speed regulation, including substrate, planetary gear train and input shaft, planetary gear train include too
The rotation axis of positive wheel, planetary gear, gear ring, planet carrier and sun gear, substrate are equipped with left support abutment and right fulcrum；Rotation axis and input
The center of axis coaxial arrangement, planet carrier is equipped with the axle sleeve coaxial with rotation axis, and the axle sleeve of planet carrier slides on rotation axis left end,
Rotation axis left end is equipped with convex shoulder identical with input shaft outer diameter on the left of axle sleeve, and rotation axis right end is by bearing support in right support abutment
On, axle sleeve is equipped with right sliding sleeve；In the middle part of input shaft through bearing support on left support abutment, input shaft right end be equipped with outside axle sleeve
The identical left sliding sleeve of diameter；Convex shoulder and input shaft right end, which are equipped with, to be connected and the first coaxial keyway, is equipped in left sliding sleeve
The first convex key that can be slided along the first keyway, axle sleeve and left sliding sleeve, which are equipped with, to be connected and the second coaxial keyway, right sliding
The second convex key that can be slided along the second keyway is equipped in set；Between rotation axis and input shaft be equipped with connecting shaft, rotation axis left end and
Input shaft right end slides over the both ends of connecting shaft respectively.
From the foregoing, it will be observed that the present invention can be by driving unit to input shaft input torque, when left sliding sleeve is in input shaft
When right end, since rotation axis left end and input shaft right end slide over the both ends of connecting shaft respectively, connecting shaft be supporting role simultaneously
Do not play the role of torque drive, there is no torque inputs for planetary gear train at this time；It, will when left sliding sleeve is in input shaft right end
Left sliding sleeve slides to convex shoulder along the first keyway, and left sliding sleeve realizes torque drive by convex shoulder and input shaft at this time, and input shaft drives
The rotation of turn moving axis, rotation axis drive planetary gear train rotation, gear ring are pinned fixation at this time, then planet carrier is as power output,
Transmission ratio is much larger than 1, it can demonstration low or first gear；Then after left sliding sleeve slides to convex shoulder along the first keyway above, then by right cunning
Dynamic set slides to left sliding sleeve along the second keyway, and right sliding sleeve realizes that key is driven between axle sleeve and left sliding sleeve at this time, input shaft
Torque be transmitted on the sun gear and planet carrier of planetary gear train simultaneously, sun gear and planet carrier are used as in planetary gear train simultaneously
Power input, gear ring will be used as power output, and transmission ratio is 1 at this time, it can demonstration direct high；When left sliding sleeve is in input
When axis right end, right sliding sleeve is slided into left sliding sleeve along the second keyway, right sliding sleeve and left sliding sleeve are directly realized by torque at this time
Transmission, planet carrier as in planetary gear train power input, at this point, by gear ring or sun gear wherein any one pin consolidate
Fixed, another is by the power output as planetary gear train, and transmission ratio is less than 1 at this time, it can demonstration overgear.
In conclusion the teaching that the present invention can be used for planetary gear train transmission principle is shown, while it can be realized multistep speed regulation
Output is conducive to the interest for increasing teaching, and has the wider scope of application；It is exported by planetary gear train multistep speed regulation, it can
To accelerate student to help to improve quality of instruction to the understanding of planetary gear train transmission performance.
As an improvement of the present invention, the left sliding sleeve left end is equipped with first annular slot, sets on first annular slot
There is the first lantern ring, the lower end of the first lantern ring is equipped with the first support plate, and the first support plate is equipped with the first horizontal operating stick, and first
The left end of operating stick passes through the through-hole of left support abutment and is slidably supported on left support abutment；The right sliding sleeve is equipped with the second ring
Shape slot, the second annular groove are equipped with the second lantern ring, and the lower end of the second lantern ring is equipped with the second support plate, and the second support plate is equipped with water
The second flat operating stick, the left end of the second operating stick pass through the through-hole of left support abutment and are slidably supported on left support abutment.
As an improvement of the present invention, first lantern ring and the second lantern ring are U-shaped ring, and U-shaped ring is placed in first annular
The lower section of slot and the second annular groove, substrate is equipped with middle support between left support abutment and planetary gear train, between left support abutment and middle support
Equipped with balancing pole, the first support plate and the second support plate slide on balancing pole respectively.
As an improvement of the present invention, limitation rotation axis is equipped in the rotation axis between planetary gear train and right support abutment
First brake of rotation, the gear ring right side are equipped with the change of sliding sleeve on the rotating shaft, and change is equipped with limitation ring gear against rotation
Second brake.
Further, first brake and second brake respectively include being located at the brake holder below rotation axis,
Brake holder upper end is equipped with split ring, and on the rotating shaft, the free end of split ring is equipped with brake handle to split ring ring set, passes through
Split ring outer diameter is enabled to shrink for pressing brake handle so that split ring holds rotation axis or change tightly and realizes rotation axis or gear ring braking.
As an improvement of the present invention, the substrate is equipped with brake actuator, and brake actuator includes operation
Support and the support shaft by being fixed on operation support, support shaft are equipped with rotatable first winding roll, the first spiral
Steel wire is wound on disk, the free end of the first winding roll steel wire is fixedly connected with the brake handle of the first brake, in support shaft
Equipped with rotatable second winding roll, steel wire, the free end of the second winding roll steel wire and the second system are wound on the second winding roll
The brake handle of dynamic device is fixedly connected；Freely slidable turn is equipped in support shaft between the first winding roll and the second winding roll
Dynamic set, the both ends of turning set are respectively equipped with outer teeth, be respectively equipped on the inside of the inside of the first winding roll and the second winding roll with
The interior teeth that outer teeth are meshed, turning set are equipped with operation handle.
Further, first winding roll and the second winding roll are located in support shaft in the form of eccentric wheel.
Further, the planet carrier is mutually sequentially connected by resilient key with planetary gear.
As an improvement of the present invention, the resilient key is equipped with U-type groove in axially grooved bottom.
Compared with prior art, the invention has the following advantages that
The teaching that the present invention can be used for planetary gear train transmission principle is shown, while can be realized multistep speed regulation output, favorably
In the interest for increasing teaching, and there is the wider scope of application；It is exported by planetary gear train multistep speed regulation, student can be accelerated
Understanding to planetary gear train transmission performance, helps to improve quality of instruction.
Detailed description of the invention
Fig. 1 is the perspective view of the planetary gear train Teaching instrument of multistep speed regulation of the present invention；
Fig. 2 is the right view of the planetary gear train Teaching instrument of multistep speed regulation of the present invention；
Fig. 3 is the D-D cross-sectional view of Fig. 2；
Fig. 4 is the perspective view of the planetary gear train Teaching instrument planetary gear train of multistep speed regulation of the present invention；
Fig. 5 is the exploded view of Fig. 4；
Fig. 6 is the transmission schematic diagram between the planetary gear train Teaching instrument input shaft and planetary gear train of multistep speed regulation of the present invention；
Fig. 7 is the exploded view of Fig. 6；
Fig. 8 is the schematic diagram of planetary gear train Teaching instrument the first brake and second brake of multistep speed regulation of the present invention；
Fig. 9 is the schematic diagram of the planetary gear train Teaching instrument resilient key of multistep speed regulation of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
Embodiment
Please refer to Fig. 1 to Fig. 9, a kind of planetary gear train Teaching instrument of multistep speed regulation, including substrate 10, planetary gear train 20 and defeated
Enter axis 30, planetary gear train 20 includes the rotation axis 24 of sun gear 21, planetary gear 22, gear ring 23, planet carrier 25 and sun gear 21, base
Plate is equipped with left support abutment and right support abutment；
Rotation axis 24 and input shaft 30 are coaxially disposed, and the center of planet carrier 25 is equipped with the axle sleeve 26 coaxial with rotation axis 24,
The axle sleeve 26 of planet carrier 25 slides on 24 left end of rotation axis, 24 left end of rotation axis on the left of axle sleeve 26 be equipped with outside input shaft 30
The identical convex shoulder 27 of diameter, for 24 right end of rotation axis through bearing support on right support abutment 12, axle sleeve 26 is equipped with right sliding sleeve 40；
In the middle part of input shaft 30 through bearing support on left support abutment 11,30 right end of input shaft is equipped with identical as 26 outer diameter of axle sleeve
Left sliding sleeve 50；Convex shoulder 26 and 30 right end of input shaft, which are equipped with, to be connected and the first coaxial keyway 31, in left sliding sleeve 50
Equipped with the first convex key 52 that can be slided along the first keyway 31, axle sleeve 26 is equipped with second to be connected and coaxially with left sliding sleeve 50
Keyway 51, right sliding sleeve 40 is interior to be equipped with the second convex key 41 that can be slided along the second keyway 51；
Connecting shaft 32 is equipped between rotation axis 24 and input shaft 30,24 left end of rotation axis and 30 right end of input shaft distinguish sliding sleeve
At the both ends of connecting shaft 32.
From the foregoing, it will be observed that the present invention can be by driving unit to input shaft input torque, when left sliding sleeve is in input shaft
When right end, since rotation axis left end and input shaft right end slide over the both ends of connecting shaft respectively, connecting shaft be supporting role simultaneously
Do not play the role of torque drive, there is no torque inputs for planetary gear train at this time；It, will when left sliding sleeve is in input shaft right end
Left sliding sleeve slides to convex shoulder along the first keyway, and left sliding sleeve realizes torque drive by convex shoulder and input shaft at this time, and input shaft drives
The rotation of turn moving axis, rotation axis drive planetary gear train rotation, gear ring are pinned fixation at this time, then planet carrier is as power output,
Transmission ratio is much larger than 1, it can demonstration low or first gear；Then after left sliding sleeve slides to convex shoulder along the first keyway above, then by right cunning
Dynamic set slides to left sliding sleeve along the second keyway, and right sliding sleeve realizes that key is driven between axle sleeve and left sliding sleeve at this time, input shaft
Torque be transmitted on the sun gear and planet carrier of planetary gear train simultaneously, sun gear and planet carrier are used as in planetary gear train simultaneously
Power input, gear ring will be used as power output, and transmission ratio is 1 at this time, it can demonstration direct high；When left sliding sleeve is in input
When axis right end, right sliding sleeve is slided into left sliding sleeve along the second keyway, right sliding sleeve and left sliding sleeve are directly realized by torque at this time
Transmission, planet carrier as in planetary gear train power input, at this point, by gear ring or sun gear wherein any one pin consolidate
Fixed, another is by the power output as planetary gear train, and transmission ratio is less than 1 at this time, it can demonstration overgear.
In conclusion the teaching that the present invention can be used for planetary gear train transmission principle is shown, while it can be realized multistep speed regulation
Output is conducive to the interest for increasing teaching, and has the wider scope of application；It is exported by planetary gear train multistep speed regulation, it can
To accelerate student to help to improve quality of instruction to the understanding of planetary gear train transmission performance.
In the present embodiment, 50 left end of left sliding sleeve is equipped with first annular slot 53, and first annular slot 53 is equipped with
First lantern ring 54, the lower end of the first lantern ring 54 are equipped with the first support plate 55, and the first support plate 55 is equipped with the first horizontal operation
Bar 56, the left end of the first operating stick 56 pass through the through-hole of left support abutment 11 and are slidably supported on left support abutment 11；The right cunning
Dynamic set 40 is equipped with the second annular groove 42, and the second annular groove 42 is equipped with the second lantern ring 43, and the lower end of the second lantern ring 43 is equipped with the
Two support plates 44, the second support plate 44 are equipped with the second horizontal operating stick 45, and the left end of the second operating stick 45 passes through left support abutment
11 through-hole is simultaneously slidably supported on left support abutment 11.Left sliding is moved respectively by the first operating stick and the second operating stick
Set and right sliding sleeve are more convenient.In the present embodiment, it is improved further again on the basis of the above, the first set
Ring 54 and the second lantern ring 43 are U-shaped ring, and U-shaped ring is placed in the lower section of first annular slot 53 and the second annular groove 42, and substrate 10 is on a left side
Between support 11 and planetary gear train 20 be equipped with middle support 13, between left support abutment 11 and middle support 13 be equipped with balancing pole 57, first
Fagging 55 and the second support plate 44 are slided over respectively on balancing pole 57.First lantern ring and the second lantern ring are set as to the form of U-shaped ring,
It is convenient for changing and dismantles, and balancing pole can balance the first support plate and the second support plate, and prevent the first support plate and
Two support plates are swung.
In the present embodiment, limitation rotation axis 24 is equipped in the rotation axis 24 between planetary gear train 20 and right support abutment 12
First brake 60 of rotation, the change slided in rotation axis 34 is equipped on the right side of the gear ring 23, and change is equipped with limitation tooth
The second brake 70 of 23 rotation of circle.Using brake can sun gear to planetary gear train or gear ring carry out hand brake, energy
The output of enough flexibly control planetary gear trains, so as to the transmission situation of multi-angle observation planetary gear train.On the basis of the above, institute
It states the first brake 60 and second brake 70 respectively includes the brake holder 61,71 for being located at 24 lower section of rotation axis, brake holder
61,71 upper ends are equipped with split ring 62,72, and split ring 62,72 ring sets are set on the free end of split ring 62,72 in rotation axis 24
There is brake handle 63,73, enables split ring 62,72 outer diameters shrink so that split ring holds rotation tightly by pressing brake handle 63,73
Axis 24 or change and realize rotation axis 24 or gear ring 23 and brake.
In the present embodiment, the substrate 10 is equipped with brake actuator 80, and brake actuator 80 includes operation branch
Seat 81 and the support shaft 82 by being fixed on operation support 81, support shaft 82 are equipped with rotatable first winding roll 83,
Steel wire 90, the free end of 83 steel wire 90 of the first winding roll and the brake handle of the first brake 60 are wound on first winding roll 83
63 are fixedly connected, and support shaft 82 is equipped with rotatable second winding roll 84, are wound with steel wire 90 on the second winding roll 84, and second
The free end of 84 steel wire 90 of winding roll is fixedly connected with the brake handle 73 of second brake 70；In the first spiral in support shaft 82
Freely slidable turning set 85 is equipped between disk 83 and the second winding roll 84, the both ends of turning set 85 are respectively equipped with outer teeth
86, the inside of the inside of the first winding roll 83 and the second winding roll 84 is respectively equipped with the interior teeth 87 being meshed with outer teeth 86,
Turning set 85 is equipped with operation handle 88.Utilize the outer teeth and the interior teeth phase of the first winding roll or the second winding roll of turning set
Cooperation can enable split ring outer diameter shrink so that split ring holds rotation axis tightly or rotation is realized in change by rotating operation handle
Axis or gear ring braking, it is convenient and strength-saving, and also a turning set can be matched with the first winding roll or the second winding roll respectively, knot
Structure simple functions are powerful.
In the present embodiment, first winding roll 83 and the second winding roll 84 are located at support shaft 82 in the form of eccentric wheel
On.By way of eccentric wheel, the first winding roll and the second winding roll can be shunk split ring with less angle of rotation, opening
Ring shrinks rapider.
In the present embodiment, the planet carrier 25 is sequentially connected by resilient key 28 and 22 phase of planetary gear.Using resilient key
Replacement disassembly convenient for assembly.On the basis of the above, it then is further improved, bottom of the resilient key 28 axially grooved 281
Equipped with U-type groove 282, resilient key is provided with U-type groove in axially grooved bottom, in order to increase elasticity, it is more convenient quick
Assembly.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (9)
1. a kind of planetary gear train Teaching instrument of multistep speed regulation, it is characterised in that: including substrate, planetary gear train and input shaft, planet
Train includes the rotation axis of sun gear, planetary gear, gear ring, planet carrier and sun gear, and substrate is equipped with left support abutment and right fulcrum；Turn
Moving axis and input shaft are coaxially disposed, and the center of planet carrier is equipped with the axle sleeve coaxial with rotation axis, and the axle sleeve of planet carrier, which slides over, to be turned
On moving axis left end, rotation axis left end is equipped with convex shoulder identical with input shaft outer diameter on the left of axle sleeve, and rotation axis right end passes through bearing
It is supported on right support abutment, axle sleeve is equipped with right sliding sleeve；In the middle part of input shaft through bearing support on left support abutment, input shaft right end
Equipped with left sliding sleeve identical with axle sleeve outer diameter；Convex shoulder and input shaft right end, which are equipped with, to be connected and the first coaxial keyway, left
The first convex key that can be slided along the first keyway is equipped in sliding sleeve, axle sleeve is equipped with second to be connected and coaxially with left sliding sleeve
Keyway, right sliding sleeve is interior to be equipped with the second convex key that can be slided along the second keyway；It is equipped with connecting shaft between rotation axis and input shaft, turns
Moving axis left end and input shaft right end slide over the both ends of connecting shaft respectively.
2. the planetary gear train Teaching instrument of multistep speed regulation according to claim 1, it is characterised in that: the left sliding sleeve left end
It is equipped with first annular slot, first annular slot is equipped with the first lantern ring, and the lower end of the first lantern ring is equipped with the first support plate, and first
Fagging is equipped with the first horizontal operating stick, and the left end of the first operating stick passes through the through-hole of left support abutment and is slidably supported at a left side
On support；The right sliding sleeve is equipped with the second annular groove, and the second annular groove is equipped with the second lantern ring, and the lower end of the second lantern ring is set
There is the second support plate, the second support plate is equipped with the second horizontal operating stick, and the left end of the second operating stick passes through the logical of left support abutment
Hole is simultaneously slidably supported on left support abutment.
3. the planetary gear train Teaching instrument of multistep speed regulation according to claim 2, it is characterised in that: first lantern ring and
Two lantern rings are U-shaped ring, and U-shaped ring is placed in the lower section of first annular slot and the second annular groove, substrate left support abutment and planetary gear train it
Between be equipped with middle support, balancing pole is equipped between left support abutment and middle support, the first support plate and the second support plate slide over flat respectively
It weighs on bar.
4. the planetary gear train Teaching instrument of multistep speed regulation according to claim 1, it is characterised in that: be expert in the rotation axis
It is equipped with the first brake of limitation rotation axis rotation between star wheel series and right support abutment, is equipped on the right side of the gear ring and slides over rotation axis
On change, change be equipped with limitation ring gear against rotation second brake.
5. the planetary gear train Teaching instrument of multistep speed regulation according to claim 4, it is characterised in that: first brake and
Second brake respectively includes being located at the brake holder below rotation axis, and brake holder upper end is equipped with split ring, split ring ring set
On the rotating shaft, the free end of split ring be equipped with brake handle, by press brake handle enable split ring outer diameter shrink so that
Split ring holds rotation axis or change tightly and realizes rotation axis or gear ring braking.
6. the planetary gear train Teaching instrument of multistep speed regulation according to claim 5, it is characterised in that: the substrate is equipped with system
Pneumatic operating mechanism, brake actuator includes operating support and the support shaft by being fixed on operation support, in support shaft
Equipped with rotatable first winding roll, steel wire, the free end of the first winding roll steel wire and the first system are wound on the first winding roll
The brake handle of dynamic device is fixedly connected, and support shaft is equipped with rotatable second winding roll, is wound with steel wire on the second winding roll,
The free end of second winding roll steel wire is fixedly connected with the brake handle of second brake；In the first winding roll and in support shaft
Freely slidable turning set is equipped between two winding rolls, the both ends of turning set are respectively equipped with outer teeth, the first winding roll it is interior
The interior teeth being meshed with outer teeth are respectively equipped on the inside of side and the second winding roll, turning set is equipped with operation handle.
7. the planetary gear train Teaching instrument of multistep speed regulation according to claim 6, it is characterised in that: first winding roll and
Second winding roll is located in support shaft in the form of eccentric wheel.
8. the planetary gear train Teaching instrument of multistep speed regulation according to claim 1, it is characterised in that: the planet carrier passes through bullet
Property pin is mutually sequentially connected with planetary gear.
9. the planetary gear train Teaching instrument of multistep speed regulation according to claim 8, it is characterised in that: the resilient key is in axial direction
The bottom of fluting is equipped with U-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409088.5A CN110164284A (en) | 2019-05-16 | 2019-05-16 | A kind of planetary gear train Teaching instrument of multistep speed regulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20210343184A1 (en) * | 2020-04-29 | 2021-11-04 | Paul Garrett Boswell | Mechanical analog of electronics |
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