CN109083985A - A kind of accurate reliable gear reduction unit of reduction ratio - Google Patents
A kind of accurate reliable gear reduction unit of reduction ratio Download PDFInfo
- Publication number
- CN109083985A CN109083985A CN201811088978.2A CN201811088978A CN109083985A CN 109083985 A CN109083985 A CN 109083985A CN 201811088978 A CN201811088978 A CN 201811088978A CN 109083985 A CN109083985 A CN 109083985A
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- gear
- stepped
- sprocket
- sun gear
- sun
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of accurate reliable gear reduction unit of reduction ratio, shells；Internal gear disc；Planetary gear, interval are arranged in internal gear disc；A sun gear group is provided on sprocket center to the cylinder between sprocket first end；At least two supporting roller groups are symmetricly set on the periphery of sun gear group, and radial position locating for supporting roller group is fixed in the internal gear disc, and supporting roller group is moved axially with sprocket is synchronous；Stepped gear group, is set in the periphery of supporting roller group, and stepped gear group is moved axially with sprocket is synchronous；Ring gear is provided on each stepped gear inner sidewall, it is engaged with the outermost side wall of corresponding sun gear at the most inner side end of follower gear, the outermost side of follower gear is engaged with corresponding stepped gear ring gear, and the outermost side wall of each stepped gear is engaged with the most inner side wall axial selectivity of planetary gear.The present invention solves the retarder output insecure technical problem of reduction ratio accuracy in the prior art.
Description
Technical field
The present invention relates to retarder technical field, it is more particularly related to a kind of accurate reliable tooth of reduction ratio
Wheel decelerator.
Background technique
Speed reducer is generally used for the drive apparatus of low rotation speed large torque, motor, internal combustion engine or other runs at high speed
Gear wheel on the few gear engagement output shaft of the number of teeth on input shaft that power passes through speed reducer achievees the purpose that deceleration, general
Logical speed reducer also has several pairs of same principle gears and reaches ideal slowing effect, and speed reducer is national economy numerous areas
Mechanical driving device, industry related products classification include all kinds of gear reduction units, planet-gear speed reducer and worm speed-down
Machine also includes various dedicated transmissions, such as speeder, speed regulation device and each including flexible gearing
Class compound gearing etc..
Currently, to provide more selectivity, occurring stepless subtract in the prior art to enrich the reduction ratio of retarder
Fast machine, reduction ratio is continuously adjustable, but the output reliability of stepless reducer machine is poor, can not provide accurate reliable reduction ratio, lead
Cause baffles in industrial application.
Summary of the invention
It is an object of the invention to solve at least the above problems, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of reduction ratio, accurately reliable gear reduction unit, retarder are configured with more
The continuously adjustable reduction ratio of kind, can adjust, it is defeated that the present invention solves retarder in the prior art according to actual needs and voluntarily
The insecure technical problem of reduction ratio accuracy out.
In order to realize these purposes and other advantages according to the present invention, a kind of reduction ratio accurately reliable gear is provided
Retarder, comprising:
Shell, first end are set as open type structure, and the opening of the shell is closed with an end cap；
Internal gear disc is rotatably arranged in the accommodating space that the end cap and shell are formed, the opening direction of the shell
It is opposite with the opening direction of the internal gear disc；
Several planetary gears are arranged at intervals in the internal gear disc, the axis of the axial direction of the planetary gear and the internal gear disc
To being arranged in parallel, the lateral wall of the planetary gear is engaged with the inner sidewall of the internal gear disc；
Sprocket is axially disposed within the center of the internal gear disc, and the sprocket center is between sprocket first end
Cylinder on be provided with a sun gear group, the sun gear group includes several sun gears being continuously arranged concentrically, it is each it is described too
The diameter of sun wheel is gradually reduced towards the sprocket first end, and the outboard end of each sun gear is in described on axis
The step-like distribution that sprocket first end gradually tapers up；The end of the second end of the sprocket is provided with first axle attachment base,
Cylinder between the first axle attachment base and sun gear group, which protrudes above, is provided with a limit ring body；The internal gear disc outer side center
One second axis connection seat is opened up, an output connecting shaft is provided in the second axis connection seat；
At least two supporting roller groups are symmetricly set on the periphery of the sun gear group, diameter locating for the supporting roller group
Fixed in the internal gear disc to position, the supporting roller group is moved axially with the sprocket is synchronous, the supporting roller group packet
Several follower gears that interval is arranged concentrically are included, the diameter of each follower gear gradually increases towards the bottom of the internal gear disc
Greatly, the outboard end of each follower gear is on axis in the step-like distribution being gradually increased to the sprocket first end；
And
Stepped gear group, is set in the periphery of the supporting roller group, and the stepped gear group is synchronous with the sprocket
Axial movement, the stepped gear group includes several stepped gears being continuously arranged concentrically, the inner concentric of the stepped gear
A hollow part is opened up, the outer diameter of each stepped gear is consistent, and the bottom of internal diameter towards the internal gear disc is gradually increased, each
The inner end of the stepped gear is on axis in the step-like distribution gradually tapered up to the sprocket second end；
Wherein, be provided with ring gear on each stepped gear inner sidewall, the most inner side end of the follower gear with it is right
The outermost side wall of the sun gear is answered to engage, the outermost side of the follower gear is nibbled with the corresponding stepped gear ring gear
It closes, the outermost side wall of each stepped gear is engaged with the most inner side wall axial selectivity of the planetary gear.
Preferably, the sun gear group include the first sun gear to the 5th sun gear, the described first to the 5th sun gear with
The sprocket rotates synchronously, and the diameter of the described first to the 5th sun gear is sequentially reduced；The supporting roller group include first with
Moving gear to the 5th follower gear, the described first to the 5th follower gear independently rotates, the described first to the 5th follower gear
Diameter is gradually increased；The stepped gear group includes the first stepped gear to the 5th stepped gear, the described first to the 5th classification
Gear independently rotates, and the internal diameter of the described first to the 5th stepped gear is gradually increased.
Preferably, the thickness of each sun gear is not less than the thickness of the follower gear, the sun gear lateral wall
On open up one first cavity, the lateral wall of the follower gear is mounted in first cavity；Described first to the 5th sun
Wheel is corresponded with the axial position of the first to the 5th follower gear, and the of the described first to the 5th sun gear and corresponding position
The engagement of one to the 5th follower gear；
The thickness of each stepped gear and the consistency of thickness of the sun gear, and it is not less than the thickness of the planetary gear
Degree；One second cavity is opened up on the stepped gear ring gear side wall, the lateral wall of the follower gear is mounted on described second
In cavity；The axial position of described first to the 5th stepped gear and the first to the 5th follower gear corresponds, and described first
First to the 5th follower gear of ring gear and corresponding position to the 5th stepped gear engages；
The lateral wall of described first to the 5th stepped gear is selectively engaged with the planetary gear of corresponding position.
Preferably, the housing first end and end cap are in turn connected to form an overall structure by screw rod, in the end cap
The heart opens up a first through hole, and the output connecting shaft extends outwardly certain distance through the first through hole.
Preferably, the first end of the sprocket opens up one first locating slot, the inner surface center setting of the internal gear disc
There is one second locating slot, first locating slot and the second locating slot are oppositely arranged, first locating slot and the second locating slot
Between be folded with a spring, when the spring is in normal condition, one spacing of first locating slot and the second locating slot interval
From the 5th stepped gear is engaged with the planetary gear.
Preferably, the thickness of the shell is described not less than the spacing between first sun gear and the first locating slot
A guide rail groove is provided on the cylinder of sprocket second end, rotation is provided with a round slip ring in the guide rail groove, described
Round slip ring periphery is at least symmetrically extended there are two connecting rod, the connecting rod direction axially vertical, company with the sprocket
The other end of bar is provided with a guide sleeve, and a guide post, the direction of the guide post and institute are movably set in the guide sleeve
The axial parallel of sprocket is stated, the length of the guide post is not less than the distance between the described first to the 5th sun gear；
It is at least symmetrically opened up on the internal gear disc inner surface there are two location hole, the first end of the guide post is fixed on institute
It states in location hole.
Preferably, the described first to the 5th follower gear center is fixedly installed a rolling bearing, and described first to the 5th
Follower gear is set in the guide post by the rolling bearing, and the rolling bearing can axially live with the guide post
It is dynamic, so that each follower gear is engaged between the corresponding sun gear and ring gear, the sun gear, follower gear
With stepped gear axial direction synchronizing moving, while making the outboard end of each stepped gear on the same axis, and the outside
It holds and is selectively engaged with the inner sidewall of the corresponding planetary gear.
Preferably, the second end of the housing center, which is run through, opens up one second through-hole, the first through hole and the second through-hole pair
Standard, second through-hole are outward extended with one section of first open tubular column, and the second end of the sprocket runs through second through-hole simultaneously
It extends in first open tubular column, the internal diameter of first open tubular column is greater than the outer diameter of the limit ring body, and described first is empty
A guide bearing is fixedly installed in stem, the guide bearing is slidably located between first sun gear and limit ring body
The sprocket cylinder on, first sun gear and limit the distance between ring body are not less than first sun gear and the
Spacing between five sun gears.
Preferably, at least open up a sliding groove on the first open tubular column lateral wall, the direction of the sliding groove with it is described
The axial direction of first open tubular column is consistent, between the length of the sliding groove is not less than between first sun gear and the 5th sun gear
Away from the sliding groove end is spaced apart between the tail of end equipped with several lock slots, the direction of the lock slots and the sliding
The direction of slot is vertical, the distance between two neighboring described sun gear of the distance between described adjacent two described lock slots one
It causes, another end of each lock slots extends a locking notch.
Preferably, sliding is arranged a position adjuster on first open tubular column, and the position adjuster includes one second open tubular column, institute
The first cavity and the second cavity that the second open tubular column center is divided into perforation are stated, the internal diameter of first cavity is less than second chamber
The internal diameter of body, the outer diameter of second open tubular column are greater than the outer diameter of first open tubular column, the internal diameter of first cavity between
Between the inside and outside diameter of the limit ring body, the internal diameter of second cavity is greater than the outer diameter of the limit ring body, and described second is empty
Hollow ring body is offered in stem side wall, the axial distance of the hollow ring body is not less than first sun gear and the 5th sun
Spacing between wheel, the hollow ring body are movably set on first open tubular column；On the hollow ring body bottom outside wall
Protrusion is provided with a guide pad, and the guide pad is slidably arranged in the sliding groove or each lock slots, first cavity
The joining place of second cavity is provided with an annular ball plate, the outer diameter of the annular ball plate is between the first cavity internal diameter
Between the second cavity internal diameter, the internal diameter of the annular ball plate is between the inside and outside diameter of the limit ring body, the annular
The rolling of ball disk is pressed together in the limit ring body.
The present invention is include at least the following beneficial effects:
1, retarder of the invention can significantly improve reduction ratio；
2, there are many continuously adjustable reduction ratio for retarder configuration, and can facilitate adjustment according to actual needs, have simultaneously
Effect improves the reliability of reduction ratio accuracy, to expand the application range of retarder.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the overall structure diagram of retarder；
Fig. 2 is the mounting structure schematic diagram of internal gear disc and end cap；
Fig. 3 is the mounting structure schematic diagram of internal gear disc and planetary gear；
Fig. 4 is the structural schematic diagram of sprocket；
Fig. 5 is the side view of sprocket；
Fig. 6 is the mounting structure side view of guide post；
Fig. 7 is the mounting structure side view of follower gear and sun gear；
Fig. 8 is the mounting structure cross-sectional view of follower gear and sun gear；
Fig. 9 is the mounting structure cross-sectional view of stepped gear, follower gear and sun gear；
Figure 10 is the mounting structure top view of follower gear；
Figure 11 is the mounting structure top view of stepped gear, follower gear and sun gear；
Figure 12 is the structural schematic diagram of end cap；
Figure 13 is internal gear disc bottom substance schematic diagram；
Figure 14 is the mounting structure schematic diagram for exporting connecting shaft；
Figure 15 is the structural schematic diagram of the first open tubular column；
Figure 16 is the overall structure diagram of position adjuster；
Figure 17 is the cross-sectional view of position adjuster；
Figure 18 is the bottom substance schematic diagram of retarder；
Figure 19 is cross-sectional view when planetary gear is engaged with the first stepped gear；
Figure 20 is cross-sectional view when planetary gear is engaged with the 5th stepped gear.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art referring to specification text
Word can be implemented accordingly.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
As shown in Fig. 1-18, the present invention provides a kind of reduction ratio accurately reliable gear reduction units, including 110 He of shell
The internal gear disc 130 and deceleration wheel assembly being rotatably arranged in the shell 110 are provided with several planets in the internal gear disc 130
Wheel 160.
Specifically, 130 inner surface of internal gear disc is symmetrically installed with several first bearings 141, first bearing 141 is close to interior
The teeth face of fluted disc 130, in the present embodiment, setting is rotatably equipped with there are five first bearing 141 in the first bearing 141
One planetary gear 160, second bearing 142 is rotatably equipped on the other end axis of the planetary gear 160, and 110 other end of shell is corresponding
Protrusion is provided with the positioning cavity 111 for accommodating fixed second bearing 142, and the second bearing 142 is fixedly mounted on described
In positioning cavity 111, the position of first bearing 141 and second bearing 142 is fixed, and planetary gear 160 is rotatably arranged on first bearing
Between 141 and second bearing 142.
The lateral wall of the planetary gear 160 is engaged with the inner sidewall of the internal gear disc 130, the center of the internal gear disc 130
Axially it is provided with a sprocket 170, the axial central location of the sprocket 170 to the cylinder between sprocket first end 176
It is provided with a sun gear group, the sun gear group includes 171 to the 5th sun gear 175 of the first sun gear being continuously arranged concentrically,
Described first to the 5th sun gear 175 is rotated synchronously with the sprocket 170, and the diameter of each sun gear is towards the tooth
170 first end 176 of wheel post is gradually reduced, that is to say, that the diameter of the described first to the 5th sun gear 175 is sequentially reduced, so that respectively
The outboard end of a sun gear is on axis in the step-like distribution gradually tapered up to the sprocket first end 176.
The periphery of the sun gear group is symmetrically arranged at least two supporting roller groups, radial position locating for the supporting roller group
It sets and is fixed in the internal gear disc, the supporting roller group is moved axially with the sprocket 170 is synchronous.Specifically, described servo-actuated
Wheel group includes the first to the 5th follower gear 275 that interval is arranged concentrically, and enables the first to the 5th follower gear 275 independent
Rotation, the bottom of diameter towards the internal gear disc 130 of each follower gear is gradually increased, that is, described first to the
The diameter of five follower gears is gradually increased, and the outboard end of each follower gear is on axis in the sprocket 170 the
The step-like distribution that one end 176 is gradually increased, the step are corresponding with the step of sun gear group.
The axial position of described first to the 5th sun gear 175 and the first to the 5th follower gear 275 corresponds, described
First to the 5th sun gear 175 is engaged with first to 275 side wall of the 5th follower gear, as shown, the first follower gear 271 with
The engagement of first sun gear 171, the second follower gear 272 are engaged with the second sun gear 172, and third follower gear 273 and third are too
173 engagement of sun wheel, the 4th follower gear 274 are engaged with the 4th sun gear 174, the 5th follower gear 275 and the 5th sun gear 175
Engagement can drive corresponding follower gear to rotate when driving sprocket 170 to rotate by sun gear.
Stepped gear group is set in the periphery of the supporting roller group, and the stepped gear group is same with the sprocket 170
Step moves axially, and in the present embodiment, the corresponding stepped gear group includes the first to the 5th classification tooth being continuously arranged concentrically
Wheel 375, while each stepped gear independently rotates, the inner concentric of the stepped gear opens up a hollow part, so that classification tooth
Wheel be in double sided gear ring structure, the outer diameter of each stepped gear is consistent, internal diameter towards the bottom of the internal gear disc 130 gradually
Increase, that is, the internal diameter of the described first to the 5th stepped gear 375 is gradually increased, the inner end of each stepped gear exists
In the step-like distribution gradually tapered up to 170 second end of sprocket on axis, the step is corresponding with the step of supporting roller group.
Ring gear, the described first to the 5th stepped gear 375 and first are provided on each stepped gear inner sidewall
Axial position to the 5th follower gear 275 corresponds, and described first to 375 inner sidewall of the 5th stepped gear and first to the
The engagement of five follower gears, 275 lateral wall, that is, ring gear engagement are set in the periphery of corresponding follower gear, as shown, the
One follower gear 271 is engaged with 371 ring gear of the first stepped gear, 372 internal tooth of the second follower gear 272 and the second stepped gear
Circle engagement, third follower gear 273 are engaged with 373 ring gear of third stepped gear, the 4th follower gear 274 and the 4th classification tooth
The engagement of 374 ring gears is taken turns, the 5th follower gear 275 is engaged with 375 ring gear of the 5th stepped gear, when 170 turns of sprocket of driving
When dynamic, corresponding stepped gear can be driven to rotate by sun gear and follower gear.
Outer gear ring, the external tooth of the described first to the 5th stepped gear 375 are provided on each stepped gear lateral wall
Circle engage with the most inner side wall axial selectivity of planetary gear, that is, pass through axial movement sprocket 170 can choose it is therein
One stepped gear is engaged with each planetary gear 160, when driving sprocket 170 to rotate, by one of sun gear and its
Corresponding follower gear and stepped gear drive planetary gear rotation, it can and driving internal gear disc 130 rotates, and due to each sun
The diameter of wheel is different, so retarder can export different decelerations when planetary gear 160 is engaged from different stepped gears and linked
Than to achieve the effect that become reduction ratio.
Specifically, being provided with a guide rail groove 179 on the cylinder of 170 second end of sprocket, guide rail groove 179 is opened up
On the cylinder close to the first sun gear 171, rotation is provided with a round slip ring 730, round slip ring in the guide rail groove 179
730 are rotated in guide rail groove 179 by limitation, so that round slip ring 730 can be rotated independently with sprocket 170, but circle
Shape slip ring 730 can be moved axially with sprocket 170.
Circle slip ring 730 periphery is at least symmetrically extended that there are two connecting rod 700,700 direction of connecting rod and the teeth
Wheel post 170 it is axially vertical, the other end of the connecting rod 700 is provided with a guide sleeve 720, and activity is set in the guide sleeve 720
It is equipped with a guide post 710, guide sleeve 720 is used to provide guiding role for the relative motion of guide post 710, so that sprocket 170
And guide sleeve 720 is moved axially along guide post 710.The axial direction of the direction of the guide post 710 and the sprocket 170 is flat
Row, the length of the guide post 710 are the axial direction of sprocket 170 not less than the distance between the described first to the 5th sun gear
It is mobile that enough distances are provided, so that each stepped gear can be contacted axially with planetary gear.
Location hole there are two symmetrically being opened up on 130 inner surface of the internal gear disc of 141 inner space of first bearing
131, the radial distance between the distance between two location holes 131 and two guide posts 710 is consistent, the guide post 710
First end is fixed in the location hole 131, guarantees not relatively rotate between round slip ring 730 and internal gear disc 130, and tooth
It relatively rotates between wheel post 170 and internal gear disc 130.
Described first is fixedly installed a rolling bearing to 275 center of the 5th follower gear, specifically, each follower gear
Center offers cavity, and a rolling bearing is fixedly installed in the cavity, and the described first to the 5th follower gear passes through described
Rolling bearing is set in the guide post 710, connection is spaced between two neighboring rolling bearing, so that each rolling bearing is independent
Rotation ensure that the synchronous axial movement of each rolling bearing in guide post 710.
The rolling bearing and the guide post 710 are axial movable, so that each follower gear is engaged on correspondence
The sun gear and ring gear between, the sun gear, follower gear and stepped gear axial direction synchronizing moving, while making each
The outboard end of a stepped gear on the same axis, and selectively nibble with the inner sidewall of the corresponding planetary gear by the outboard end
It closes, that is to say, that joined between planetary gear 160 and the sun gear of different-diameter by follower gear, the stepped gear of corresponding position
It is dynamic, and the outermost side of each stepped gear is on the same axis, in order to when sprocket 170 moves axially, respectively
A stepped gear is smoothly engaged with the switching of planetary gear 160.
The center of internal gear disc 130 is arranged in sprocket 170, after sprocket 170 is installed in place, with sprocket 170
Axial movement so that the lateral wall of each stepped gear lateral wall and the corresponding planetary gear 160 selectively engages, thus
So that the sun gear of the different-diameter on internal gear disc 130 and sprocket 170 links, to adjust reduction ratio.
Wherein, the consistency of thickness of each sun gear and stepped gear and the thickness not less than the planetary gear 160 are
The linkage of engaging of planetary gear 160 and each stepped gear provides enough attaching spaces, avoid planetary gear 160 simultaneously with classification tooth
Two stepped gears contact in wheel group.
The thickness of each sun gear is not less than the thickness of the follower gear, the structure of usual sprocket such as Fig. 4 institute
Show, but in order to by the axial movement synchronous with stepped gear of sun gear, follower gear, on each sun gear lateral wall
One first cavity 1711 is opened up, as seen in figs. 5-6, the height of first cavity 1711 and the consistency of thickness of follower gear are described
The lateral wall of follower gear is mounted in first cavity 1711, and is engaged with the side wall in the first cavity 1711, to make
Follower gear be limited in the first cavity 1711, complete follower gear and sun gear location and installation, when sun wheel shaft to
When mobile, the synchronous axial movement of follower gear can be driven.Described first to the 5th sun gear and the first to the 5th follower gear
Axial position correspond, the described first to the 5th sun gear engages with the first to the 5th follower gear of corresponding position.
Similarly, one second cavity, the lateral wall of the follower gear are opened up on each stepped gear ring gear side wall
It is mounted in second cavity；The height of second cavity and the consistency of thickness of follower gear, the outside of the follower gear
Wall is mounted in second cavity, and engages with the side wall in the second cavity, so that follower gear is limited in second
In cavity, complete follower gear and stepped gear location and installation, when sun gear axial movement when, can synchronous drive with movable tooth
Wheel, stepped gear axial movement.
The axial position of described first to the 5th stepped gear 375 and the first to the 5th follower gear corresponds, described
The ring gear of first to the 5th stepped gear 375 is engaged with the first to the 5th follower gear of corresponding position.Described first to
The lateral wall of 5th stepped gear 375 is selectively engaged with the planetary gear of corresponding position.
The first end 176 of the sprocket 170 opens up one first locating slot, and the inner surface center of the internal gear disc 130 is set
It is equipped with one second locating slot 150, first locating slot and the second locating slot 150 are oppositely arranged, first locating slot and
Be folded with a spring between two locating slots 150, that is to say, that spring be mounted be located in locating slot that two are oppositely arranged it
Between.When the spring is in normal condition, first locating slot and the second locating slot 150 are spaced apart, described at this time
5th sun gear 175, the 5th follower gear 275 and its 5th stepped gear 375 are engaged with the planetary gear 160, sprocket 170
Pass through the 5th sun gear 175 engaged with internal gear disc 130 and links after the deceleration of planetary gear 160.
When pushing sprocket 170 mobile to 130 bottom of internal gear disc, the 4th sun gear, the 4th follower gear and its 4th
Stepped gear is mobile to planetary gear 160 until the two engages, and the 5th stepped gear 375 is separated with the planetary gear 160, sprocket
170 pass through the 4th sun gear engaged with internal gear disc 130 and link after the deceleration of planetary gear 160.
When continuing to press on sprocket 170 to when the movement of 130 bottom of internal gear disc, sprocket 170 passes through with internal gear disc 130 to be engaged
Third sun gear and planetary gear 160 slow down after link；And so on, final gear column 170 and internal gear disc 130, which pass through, to be engaged
First sun gear 171 and planetary gear 160 link after slowing down；In the process, spring is compressed, when sun gear group resets,
Under the action of spring, the 5th sun gear 175 keeps linking with planetary gear 160.It follows that sprocket 170 has with internal gear disc 130
Continuous five kinds of linked manners, and due to the diameter of the first to the 5th sun gear 175 difference, it is hereby achieved that five kinds are different
Reduction ratio, it is of course possible to the quantity of sun gear in sun gear group is adjusted according to the actual situation, to adjust the configuration number of reduction ratio
Amount.
The end of the second end of the sprocket 170 is provided with first axle attachment base 177, which makees
For the input shaft end of retarder, the cylinder between the first axle attachment base 177 and the first sun gear 171, which protrudes above, is provided with one
Limit ring body 178；130 outer side center of internal gear disc opens up one second axis connection seat 113, the second axis connection seat 113 and internal tooth
Disk 130 rotates synchronously, and is provided with an output connecting shaft 410 in the second axis connection seat 113,410 conduct of output connecting shaft
The output of retarder and internal gear disc 130 rotate synchronously, and the output connecting shaft 410 is to extending on the outside of the shell 110, by defeated
Connecting shaft 410 drives external equipment out.
Linkage sun gear 420 can also be provided with by disjunctor on the elongated end of the output connecting shaft 410, by linking too
Sun takes turns 420 to facilitate drive external equipment.
110 first end of shell is set as open type structure, the opening direction of the shell 110 and the internal gear disc
For 130 opening direction on the contrary, the opening of the shell 110 is closed with an end cap 120, the height in shell 110 is not less than the sun
The height of wheel group, to provide the axial movement space of sun gear group, the internal gear disc 130 is located at the end cap 120 and shell 110
In the accommodating space of formation, 120 center of end cap opens up a first through hole 121, and 130 lower rotation of internal gear disc is mounted on end cap
On 120 upper surface, first through hole 121 is aligned with the second axis connection seat 113, and the linkage sun gear 420 runs through described first
Through-hole 121 extends outwardly certain distance.
Specifically, the 120 upper surface center of end cap opens up one first circular guideway slot, the first circular guideway slot position
In 121 periphery of first through hole, an annular rolling disk 122, the annular rolling disk 122 are provided in the first circular guideway slot
The 120 upper surface certain distance of end cap is protruded from, 130 lower surface center of the internal gear disc correspondence opens up one second circular guideway
Slot 112, the second circular guideway slot 112 are located at 113 periphery of the second axis connection seat, the second circular guideway slot 112
It is mounted on the annular rolling disk 122,130 bottom of internal gear disc is rotatably arranged on the end by the annular rolling disk 122
120 upper surface of lid.
Specifically, between the thickness of the shell 110 is not less than between the 5th sun gear 175 and the first locating slot
Away from enabling the sprocket 170 cylinder activity of sun gear group and its lower end in shell 110.
In the present embodiment, 110 first end of shell, end cap 120, internal gear disc 130 are in turn connected to form one by screw rod
Overall structure, the 110 second end center of shell, which is run through, opens up one second through-hole, the first through hole 121 and the second through-hole pair
Standard, second through-hole are outward extended with one section of first open tubular column 180, and the second end of the sprocket 170 runs through described second
Through-hole simultaneously extends in first open tubular column 180, while it is outer that first axle attachment base 177 is exposed to, defeated convenient for retarder
Enter connection.
The internal diameter of first open tubular column 180 is greater than the outer diameter of the limit ring body 178, enables and limits ring body 178
It stretches in the first open tubular column 180, a guide bearing (not shown) is fixedly installed in first open tubular column 180, is led
Fixed to bearing lateral wall and 180 inner sidewall of the first open tubular column, the guide bearing be slidably located in the round slip ring 730 with
Limit on 170 cylinder of the sprocket between ring body 178 so that guide bearing can only relatively activity round slip ring 730 with
It limits between ring body 178, the distance between the circle slip ring 730 and limit ring body 178 are not less than the first sun gear 171 and the
Spacing between five sun gears 175, to guarantee that planetary gear 160 can contact respectively with the first to the 5th sun gear 175.Meanwhile
Guide bearing also plays axially directed effect, and by sprocket 170, strictly limitation is moved axially.
A sliding groove 181, the direction of the sliding groove 181 and institute are at least opened up on first open tubular column, 180 lateral wall
State the axial consistent of the first open tubular column 180, the length of the sliding groove 181 is too not less than first sun gear 171 and the 5th
Spacing between sun wheel 175, to guarantee that planetary gear 160 can contact respectively with the first to the 5th sun gear 175.The sliding groove
Interval opens up 182 to the 5th lock slots 184 of the first lock slots, the locking of the first lock slots 182 to the 5th between the tail of 181 ends to end
The direction of slot 184 is vertical with the direction of the sliding groove 181, the distance between adjacent two described lock slots and two neighboring institute
State the distance between sun gear unanimously, another end of each lock slots extends a locking notch, as shown, the first lock
Determine another end of slot 182 and be provided with locking notch 183, another end of the 5th lock slots 184 is provided with locking notch 185.
Sliding is arranged a position adjuster 300 on first open tubular column 180, and the position adjuster 300 includes one second open tubular column,
Second open tubular column center is divided into the first cavity 320 and the second cavity 350 of perforation, and the internal diameter of first cavity 320 is small
In the internal diameter of second cavity 350, the outer diameter of second open tubular column is greater than the outer diameter of first open tubular column 180, described
For the internal diameter of first cavity 320 between the inside and outside diameter of the limit ring body 178, the internal diameter of the second cavity 350 is greater than stop collar
The outer diameter of body 173 offers hollow ring body 310 in the second open tubular column side wall, and the axial distance of the hollow ring body 310 is not
Less than the spacing between first sun gear 171 and the 5th sun gear 175, the hollow ring body 310 is movably set in described
On the side wall of first open tubular column 180；The 310 bottom outside wall of hollow ring body, which protrudes above, is provided with a guide pad 330, described to lead
It is arranged in the sliding groove 181 or each lock slots to 330 limit slippage of block, so that position adjuster 300 is movably arranged on
On first open tubular column 180.
The joining place of first cavity 320 and the second cavity 350 is provided with an annular ball plate 340, the annular rolling
The outer diameter of pearl disk 340 is between first cavity 320 and the internal diameter and internal diameter of the second cavity 350, the annular ball plate
340 internal diameter is mounted on the first open tubular column 180 when position adjuster 300 is arranged between the inside and outside diameter of the limit ring body 178
Afterwards, the rolling of annular ball plate 340 is pressed together in the limit ring body 178, and position adjuster 300 is pushed to push sprocket 170,
First axle attachment base 177 is exposed to outer from the first cavity 320.
The course of work is as follows:
The input terminal axis of external equipment is connect with first axle attachment base 177, by output connecting shaft after slowing down via retarder
410 or linkage sun gear 420 export.When normal condition, position adjuster 300 is rotated, so that guide pad 330 is moved to sliding groove 181
In, under the action of the spring, push sprocket 170 to moving at the top of internal gear disc 130 so that the 5th stepped gear 375 with it is described
Planetary gear 160 engages, and as shown in figure 20, sprocket 170 passes through the 5th sun gear 175 and planetary gear engaged with internal gear disc 130
It links after 160 decelerations.
When needing to reduce the reduction ratio of retarder, position adjuster 300 is pressed, ring body will be limited by annular ball plate 340
178 and entire sprocket 170 it is mobile to 130 bottom of internal gear disc, position adjuster 300 is along sliding groove 181 outside the first open tubular column 180
It is moved on side wall, until guide pad 330 is moved to the position of corresponding first lock slots 182 of sliding groove 181, in the process, bullet
Spring is constantly compressed, and the 4th sun gear, the 4th follower gear and its 4th stepped gear are mobile to planetary gear 160 until the two is nibbled
It closes, the 5th stepped gear 375 is separated with the planetary gear 160, and sprocket 170 passes through the 4th sun engaged with internal gear disc 130
Wheel and planetary gear 160 link after slowing down.Then rotation position adjuster 300, so that guide pad 330 is moved in the first lock slots 182,
Until guide pad 330 is limited in locking notch 183, under the pressure effect of spring, guide pad 330 is locked, sprocket
170 axial position is fixed.
When the reduction ratio for needing to continue to reduce retarder, position adjuster 300 is rotated, so that guide pad 330 is from locking notch
183 are detached from and are moved in sliding groove 181, continue to press on sprocket 170 to the movement of 130 bottom of internal gear disc, in the process, bullet
Spring is further compressed, and third sun gear, third follower gear and its third stepped gear are mobile to planetary gear 160 until the two
Engagement, the 4th stepped gear are separated with the planetary gear 160, and sprocket 170 passes through the third sun gear engaged with internal gear disc 130
It links after slowing down with planetary gear 160.Then rotation position adjuster 300, so that guide pad 330 is moved in the second lock slots, until
Guide pad 330 is limited in the locking notch on the second lock slots, and under the pressure effect of spring, guide pad 330 is locked,
The axial position of sprocket 170 is fixed.
When the reduction ratio for needing to continue to reduce retarder, adjustment process and so on, it is final to can be so that sprocket 170
Pass through the first sun gear 171 engaged with internal gear disc 130 and link after the deceleration of planetary gear 160, as shown in figure 19.
When needing spring reset, it is only necessary to press position adjuster 300 and guide pad 330 is made to be detached from locking notch 185, then
Rotation position adjuster 300 is moved to guide pad 330 in sliding groove 181.When sun gear group resets, in the effect of spring
Under, the 5th sun gear 175 keeps linking with planetary gear 160.
From the above mentioned, retarder of the invention can significantly improve reduction ratio；Meanwhile there are many connect for retarder configuration
Continue adjustable reduction ratio, and adjustment can be facilitated according to actual needs, while effectively increasing the reliability of reduction ratio accuracy,
To expand the application range of retarder.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (10)
1. a kind of accurate reliable gear reduction unit of reduction ratio characterized by comprising
Shell, first end are set as open type structure, and the opening of the shell is closed with an end cap；
Internal gear disc is rotatably arranged in the accommodating space that the end cap and shell are formed, the opening direction of the shell and institute
The opening direction for stating internal gear disc is opposite；
Several planetary gears are arranged at intervals in the internal gear disc, and the axial direction of the axial direction of the planetary gear and the internal gear disc is flat
Row setting, the lateral wall of the planetary gear are engaged with the inner sidewall of the internal gear disc；
Sprocket is axially disposed within the center of the internal gear disc, the sprocket center to the column between sprocket first end
A sun gear group is provided on body, the sun gear group includes several sun gears being continuously arranged concentrically, each sun gear
Diameter be gradually reduced towards the sprocket first end, the outboard end of each sun gear is on axis in the gear
The step-like distribution that column first end gradually tapers up；The end of the second end of the sprocket is provided with first axle attachment base, described
Cylinder between first axle attachment base and sun gear group, which protrudes above, is provided with a limit ring body；The internal gear disc outer side center opens up
One second axis connection seat is provided with an output connecting shaft in the second axis connection seat；
At least two supporting roller groups are symmetricly set on the periphery of the sun gear group, radial position locating for the supporting roller group
It sets and is fixed in the internal gear disc, the supporting roller group is moved axially with the sprocket is synchronous, between the supporting roller group includes
It is gradually increased every the bottom of several follower gears being arranged concentrically, diameter towards the internal gear disc of each follower gear,
The outboard end of each follower gear is on axis in the step-like distribution being gradually increased to the sprocket first end；And
Stepped gear group, is set in the periphery of the supporting roller group, and the stepped gear group synchronizes axial direction with the sprocket
Mobile, the stepped gear group includes several stepped gears being continuously arranged concentrically, and the inner concentric of the stepped gear opens up
The outer diameter of one hollow part, each stepped gear is consistent, and the bottom of internal diameter towards the internal gear disc is gradually increased, each described
The inner end of stepped gear is on axis in the step-like distribution gradually tapered up to the sprocket second end；
Wherein, it is provided with ring gear on each stepped gear inner sidewall, the most inner side end of the follower gear and corresponding institute
The outermost side wall engagement of sun gear is stated, the outermost side of the follower gear is engaged with the corresponding stepped gear ring gear, respectively
The outermost side wall of a stepped gear is engaged with the most inner side wall axial selectivity of the planetary gear.
2. the accurate reliable gear reduction unit of reduction ratio as described in claim 1, which is characterized in that the sun gear group includes
First sun gear to the 5th sun gear, the described first to the 5th sun gear and the sprocket rotate synchronously, and described first to the
The diameter of five sun gears is sequentially reduced；The supporting roller group include the first follower gear to the 5th follower gear, described first to
5th follower gear independently rotates, and the diameter of the described first to the 5th follower gear is gradually increased；The stepped gear group includes
First stepped gear to the 5th stepped gear, the described first to the 5th stepped gear independently rotate, the described first to the 5th classification
The internal diameter of gear is gradually increased.
3. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 2, which is characterized in that each sun gear
Thickness is not less than the thickness of the follower gear, opens up one first cavity on the sun gear lateral wall, the follower gear
Lateral wall is mounted in first cavity；The axial position of described first to the 5th sun gear and the first to the 5th follower gear
It corresponds, the described first to the 5th sun gear is engaged with the first to the 5th follower gear of corresponding position；
The thickness of each stepped gear and the consistency of thickness of the sun gear, and it is not less than the thickness of the planetary gear；Institute
It states and opens up one second cavity on stepped gear ring gear side wall, the lateral wall of the follower gear is mounted on second cavity
In；The axial position of described first to the 5th stepped gear and the first to the 5th follower gear corresponds, and described first to the
The ring gear of five stepped gears is engaged with the first to the 5th follower gear of corresponding position；
The lateral wall of described first to the 5th stepped gear is selectively engaged with the planetary gear of corresponding position.
4. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 2, which is characterized in that the housing first end and
End cap is in turn connected to form an overall structure by screw rod, and the end cap central opens up a first through hole, the output connecting shaft
Extend outwardly certain distance through the first through hole.
5. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 2, which is characterized in that the first of the sprocket
End opens up one first locating slot, and the inner surface of the internal gear disc is provided centrally with one second locating slot, first locating slot and
Second locating slot is oppositely arranged, and a spring is folded between first locating slot and the second locating slot, and the spring is in just
When normal state, first locating slot and the second locating slot are spaced apart, the 5th stepped gear and the planetary gear
Engagement.
6. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 5, which is characterized in that the thickness of the shell is not
Less than the spacing between first sun gear and the first locating slot, a guide rail is provided on the cylinder of the sprocket second end
Groove, rotation is provided with a round slip ring in the guide rail groove, and the circle slip ring periphery is at least symmetrically extended that there are two connect
Bar, the connecting rod direction is axially vertical with the sprocket, and the other end of the connecting rod is provided with a guide sleeve, the guiding
A guide post, axial parallel, the length of the guide post in the direction of the guide post and the sprocket are movably set in set
Degree is not less than the distance between the described first to the 5th sun gear；
Location hole there are two at least symmetrically opening up on the internal gear disc inner surface, the first end of the guide post is fixed on described fixed
In the hole of position.
7. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 6, which is characterized in that described first to the 5th with
Moving gear center is fixedly installed a rolling bearing, and the described first to the 5th follower gear is set in institute by the rolling bearing
It states in guide post, the rolling bearing and the guide post are axially movable, so that each follower gear is engaged on correspondence
The sun gear and ring gear between, the sun gear, follower gear and stepped gear axial direction synchronizing moving, while making each
The outboard end of a stepped gear on the same axis, and selectively nibble with the inner sidewall of the corresponding planetary gear by the outboard end
It closes.
8. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 4, which is characterized in that in the second end of the housing
The heart is through opening up one second through-hole, the first through hole and the second through-hole alignment, and second through-hole is outward extended with one section the
The second end of one open tubular column, the sprocket through second through-hole and extends in first open tubular column, described first
The internal diameter of open tubular column is greater than the outer diameter of the limit ring body, is fixedly installed with a guide bearing in first open tubular column, described
Guide bearing is slidably located on the sprocket cylinder between first sun gear and limit ring body, first sun
The distance between wheel and limit ring body are not less than the spacing between first sun gear and the 5th sun gear.
9. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 8, which is characterized in that outside first open tubular column
A sliding groove, axial consistent, the sliding groove in the direction of the sliding groove and first open tubular column are at least opened up on side wall
Length not less than spacing between first sun gear and the 5th sun gear, the sliding groove end is spaced to holding between tail
Several lock slots are offered, the direction of the lock slots is vertical with the direction of the sliding groove, adjacent two locks
Determine the distance between the distance between slot and the two neighboring sun gear unanimously, another end of each lock slots extends
One locking notch.
10. the accurate reliable gear reduction unit of reduction ratio as claimed in claim 9, which is characterized in that first open tubular column
Upper sliding is arranged a position adjuster, and the position adjuster includes one second open tubular column, and second open tubular column center is divided into the of perforation
One cavity and the second cavity, the internal diameter of first cavity are less than the internal diameter of second cavity, second open tubular column it is outer
Diameter is greater than the outer diameter of first open tubular column, and the internal diameter of first cavity is between the inside and outside diameter of the limit ring body, institute
The internal diameter for stating the second cavity is greater than the outer diameter of the limit ring body, offers hollow ring body, institute in the second open tubular column side wall
The axial distance of hollow ring body is stated not less than the spacing between first sun gear and the 5th sun gear, the hollow ring body is living
It is dynamic to be set on first open tubular column；The hollow ring body bottom outside wall, which protrudes above, is provided with a guide pad, the guiding
Block is slidably arranged in the sliding groove or each lock slots, and the joining place of first cavity and the second cavity is provided with a ring
Shape ball disk, the outer diameter of the annular ball plate is between the first cavity internal diameter and the second cavity internal diameter, the annular
For the internal diameter of ball disk between the inside and outside diameter of the limit ring body, the annular ball plate rolling is pressed together on the stop collar
On body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088978.2A CN109083985B (en) | 2018-09-18 | 2018-09-18 | Gear reducer with accurate and reliable reduction ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088978.2A CN109083985B (en) | 2018-09-18 | 2018-09-18 | Gear reducer with accurate and reliable reduction ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109083985A true CN109083985A (en) | 2018-12-25 |
| CN109083985B CN109083985B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811088978.2A Active CN109083985B (en) | 2018-09-18 | 2018-09-18 | Gear reducer with accurate and reliable reduction ratio |
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| Country | Link |
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| CN (1) | CN109083985B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111371243A (en) * | 2020-04-07 | 2020-07-03 | 江苏川钿明椿电气机械有限公司 | Stable output aluminum wire motor of speed reduction motor |
| CN111555198A (en) * | 2020-06-05 | 2020-08-18 | 南京工程学院 | High-altitude cable on-line peeling machine |
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| CN111555198A (en) * | 2020-06-05 | 2020-08-18 | 南京工程学院 | High-altitude cable on-line peeling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109083985B (en) | 2021-08-03 |
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