CN206904152U - RV decelerators - Google Patents
RV decelerators Download PDFInfo
- Publication number
- CN206904152U CN206904152U CN201720846525.6U CN201720846525U CN206904152U CN 206904152 U CN206904152 U CN 206904152U CN 201720846525 U CN201720846525 U CN 201720846525U CN 206904152 U CN206904152 U CN 206904152U
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- China
- Prior art keywords
- mating holes
- decelerators
- roller
- epicyclodial
- output
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Abstract
Decelerator technical field is the utility model is related to, more particularly to a kind of RV decelerators.RV decelerators provided by the utility model, including input gear axle, a crank axle, planetary gear, two epicyclodial wheels, internal messing mechanism and two outputs, also, RV decelerators also include output gear unit, output gear unit includes three drive blocks and three pairs of mating holes, wherein：Two mating holes in a pair of mating holes are separately positioned on the adjacent face of two epicyclodial wheels, two mating holes in another two pairs of mating holes in each pair mating holes are separately positioned on the adjacent face of an epicycloid disk and an output, three drive blocks are separately positioned in three pairs of mating holes, and the difference of the external diameter of the internal diameter of each mating holes and drive block is equal to 2 2.5 times of epicyclodial wheel eccentric throw.RV decelerators of the present utility model only set a crank axle that being uniformly distributed for power output can be achieved, and structure is simpler, and installation difficulty is relatively low, and efficiency of assembling is higher.
Description
Technical field
Decelerator technical field is the utility model is related to, more particularly to a kind of RV decelerators.
Background technology
RV decelerators are a kind of decelerators to grow up on the basis of traditional Cycloid drive, and it generally includes first
Level cylindrical gear planet reducing gear and second level cycloidal planetary gear speed reducer structure, there is small volume, in light weight, gear range
Greatly, long lifespan, precision keep the series of advantages such as stabilization, efficiency high, stable drive, are widely used in the fields such as robot.
Existing RV decelerators, its generally use W output mechanisms are exported, several bearing pins insertion of W output mechanisms
Two eccentric settings and phase difference of second level cycloidal planetary gear speed reducer structure are in the pin-and-hole on 180 ° of epicyclodial wheel, pin-and-hole with
The difference of the size of bearing pin is typically set equal to four times of epicyclodial wheel eccentric throw, in this case, in order that power output point
Cloth is more uniform, two piece or three piece crank axle supports of two epicyclodial wheels generally by being evenly distributed on same circumference.It is this
Using the RV decelerators of at least two crank axles, structure is complex, and installation requirement is higher, and assembling process is relatively complicated.
Utility model content
A technical problem to be solved in the utility model is：In order that power output is distributed more uniform, existing RV
At least two crank axles are generally set in decelerator, and structure is complex, and installation requirement is higher, and assembling process is relatively complicated.
In order to solve the above-mentioned technical problem, the utility model, which provides one kind, includes input gear axle, positioned at input gear
A piece crank axle of axis center axis side, the planetary gear for being set on crank axle and being engaged with input gear axle, bias are arranged
On crank axle and phase difference is 180 ° of two epicyclodial wheels, the internal messing mechanism engaged with two epicyclodial wheels and setting
In two epicyclodial wheel axial direction both sides and two outputs rotatably setting, also, the RV decelerators also include output transmission
Unit, output gear unit include three drive blocks and three pairs of mating holes, wherein：Two mating holes difference in a pair of mating holes
It is arranged on the adjacent face of two epicyclodial wheels, two mating holes in another two pairs of mating holes in each pair mating holes are set respectively
On the adjacent face of an epicycloid disk and an output, three drive blocks are separately positioned in three pairs of mating holes, and often
The difference of the internal diameter of individual mating holes and the external diameter of drive block is equal to 2-2.5 times of epicyclodial wheel eccentric throw.
Alternatively, 2-2.5 times of the difference of the external diameter of the internal diameter of each mating holes and drive block equal to epicyclodial wheel eccentric throw.
Alternatively, mating holes is blind hole.
Alternatively, RV decelerators include at least two output gear units, and this at least two output gear unit is along outer
The circumference of Cycloidal Wheel is uniformly distributed.
Alternatively, internal messing mechanism includes joggle piece and supporting member, and joggle piece is arranged on the inwall of supporting member, and two outer
Cycloidal Wheel engages with joggle piece.
Alternatively, joggle piece is pin tooth or roller.
Alternatively, joggle piece is roller, and RV decelerators are also including the roller limiting structure being correspondingly arranged with roller, roller
Position limiting structure is used for the axial displacement for limiting roller.
Alternatively, roller limiting structure includes two roller rolling retainers positioned at roller axial direction both sides, and each roller is kept
Frame supports and is located at supporting member, roller and is located at roller rolling retainer between the output of roller the same side.
Alternatively, supporting member is housing or hypocycloid wheel.
Alternatively, supporting member is fixedly installed.
The utility model substitutes bearing pin of the prior art by using three drive blocks of output gear unit, and will transmission
The size relationship of block and matched mating holes is arranged to the internal diameter of mating holes and the difference of the external diameter of drive block is equal to epicycloid
Take turns eccentric throw 2-2.5 times so that drive block also acts as the effect of uniform power output realizing while power transmission effect, from
And make it that RV decelerators only set a crank axle that being uniformly distributed for power output can be achieved, because the quantity of crank axle reduces,
Therefore, it can effectively simplify structure, reduce installation difficulty, improve efficiency of assembling.
By the way that exemplary embodiment of the present utility model is described in detail referring to the drawings, it is of the present utility model its
Its feature and its advantage will be made apparent from.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the structural representation of the RV decelerators of the embodiment of the utility model one.
In figure：
11st, input gear axle；12nd, planetary gear；
21st, crank axle；22nd, epicyclodial wheel；23rd, roller；24th, housing；25th, roller rolling retainer；
31st, output；32nd, drive block；33rd, mating holes；
41st, end cap；42nd, bolt.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
There is the every other embodiment carried out and obtained under the premise of creative work, belong to the scope of the utility model protection.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In description of the present utility model, it is to be understood that the noun of locality such as " forward and backward, upper and lower, left and right ", " horizontal,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or position relationship be normally based on orientation or position shown in the drawings
Relation is put, description the utility model is for only for ease of and simplifies description, in the case where not making opposite explanation, these nouns of locality
Do not indicate that and imply that the device of meaning or element there must be specific orientation or with specific azimuth configuration and operation, because
This is it is not intended that limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each part in itself
Wide is inside and outside.
In description of the present utility model, it is to be understood that limit zero using the word such as " first ", " second "
Part, it is only for it to be easy to distinguish corresponding parts, does not such as have Stated otherwise, above-mentioned word does not have particular meaning,
Therefore it is not intended that limitation to scope of protection of the utility model.
Fig. 1 shows one embodiment of the utility model RV decelerators.Reference picture 1, RV provided by the utility model
Decelerator, including input gear axle 11, a crank axle 21 positioned at the central axis side of input gear axle 11, it is set in crank
The planetary gear 12 that is engaged on axle 21 and with input gear axle 11, eccentric it is set on crank axle 21 and phase difference is two of 180 °
Epicyclodial wheel 22, the internal messing mechanism engaged with two epicyclodial wheels 22 and be arranged on two 22 axial both sides of epicyclodial wheel and
Two outputs 31 rotatably set, moreover, the RV decelerators also include output gear unit, output gear unit includes three
Individual drive block 32 and three pairs of mating holes 33, wherein：Two mating holes 33 in a pair of mating holes 33 are separately positioned on outside two and put
On the adjacent face of line wheel 22, two mating holes 33 in another two pairs of mating holes 33 in each pair mating holes 33 are separately positioned on one
On the adjacent face of epicyclodial wheel and an output 31, three drive blocks 32 are separately positioned in three pairs of mating holes 33, and often
The difference of the internal diameter of individual mating holes 33 and the external diameter of drive block 32 is equal to 2-2.5 times of the eccentric throw of epicyclodial wheel 22.
RV decelerators of the present utility model, the drive connection between two epicyclodial wheel 22 and output 31 no longer pass through
The cooperation realization of bearing pin and pin-and-hole, but by the output gear unit with three drive blocks 32 and three pairs of mating holes 33 come real
It is existing, and the difference of the external diameter of the internal diameter of each mating holes 33 and drive block 32 is equal to 2-2.5 times of the eccentric throw of epicyclodial wheel 22, is based on
This, Continuous Contact Transmission can be remained with mating holes 33 by exporting the drive block 32 of gear unit, realize power transmission work
With while also act as the effect of crank axle 21 so that it is that being uniformly distributed for power output can be achieved only to set a crank axle 21,
So as to relative to the situation for needing at least two crank axles of setting in the prior art, can effectively simplify structure, it is difficult to reduce installation
Degree, improve efficiency of assembling.
In the utility model, the number for exporting gear unit could be arranged to one or at least two, wherein, work as output
When the number of gear unit is at least two, this at least two output gear unit is preferably along the circumferential uniform of epicyclodial wheel 22
Distribution, be so advantageous to further improve the uniformity of RV decelerators power output distribution, make the transmission of RV decelerators more steady,
Lift the performance of RV decelerators.
In addition, RV decelerators of the present utility model, its internal gearing structure can include joggle piece and supporting member, and joggle piece is set
Put on the inwall of supporting member, two epicyclodial wheels 22 engage with joggle piece.Wherein, joggle piece can be pin tooth or roller
23；And supporting member can be housing 24 or hypocycloid wheel.For example, joggle piece can be pin tooth, supporting member can be housing 24, shape
Into Cycloidal pin-wheel drive mechanism；Or joggle piece can be roller 23, supporting member can be hypocycloid wheel, form epicycloid-rolling
Post-hypocycloid transmission mechanism.
When joggle piece uses roller 23, in order to be better achieved the positioning of roller 23, RV decelerators can also include with
The roller limiting structure that roller 23 is correspondingly arranged, roller limiting structure are used for the axial displacement for limiting roller 23, so can be real
Now more stably transmission process.
The utility model is described further with reference to the embodiment shown in Fig. 1.
As shown in figure 1, in this embodiment, RV decelerators include first order cylindrical gear reducer structure, second level cycloid
Take turns reducing gear and output mechanism.Wherein, first order cylindrical gear reducer structure includes input gear axle 11 and planetary gear 12；The
Two level Cycloidal Wheel reducing gear includes 21, two epicyclodial wheels 22 of a crank axle and the internal messing with roller 23 and housing 24
Mechanism；Output mechanism includes two outputs 31 and multiple output gear units.
As shown in Figure 1, in this embodiment, input gear axle 11 is arranged on the center of two end caps 41；Crank axle 21 is set
Put in the central axis side of input gear axle 11, its middle part is provided with two eccentric parts that phase difference is 180 °；12 sets of planetary gear
It is located at the end of crank axle 21 and is engaged with input gear axle 11；Two epicyclodial wheels 22 are set at two eccentric parts so that
The phase difference of two eccentric settings of epicyclodial wheel 22 and two epicyclodial wheels 22 is in 180 °；Housing 24 is used as supporting member, and it is fixed
Set, be connected by bolt 42 with end cap 41, the grade cover of epicyclodial wheel 22 is set to the protection wherein, formed to the grade of epicyclodial wheel 22；
Roller 23 is used as joggle piece, and circumference of multiple rollers 23 along housing 24 is distributed evenly on the inwall of housing 24, and with two
Individual epicyclodial wheel 22 engages；The axial both sides of each roller 23 are equipped with two roller rolling retainers 25, two roller rolling retainers 25
As roller limiting structure, each roller rolling retainer 25 is same to being located at housing 24, roller 23 and being located at roller 23 with itself
Between the output 31 of side, to limit the axial displacement of roller 23；Two outputs 31 are arranged on the axle of two epicyclodial wheels 22
To both sides, and two outputs 31 are rotatably arranged with specifically, each output 31 is supported on input tooth by bearing
Wheel shaft 11 and with itself on the end cap 41 of two the same sides of epicyclodial wheel 22.
In this embodiment, two epicyclodial wheels 22 are realized to the dynamic of two outputs 31 by multiple output gear units
Power transmission.Multiple output gear units are arranged on same circumference, and are circumferentially uniformly distributed.Each output transmission is single
Member includes three drive blocks 33 and three pairs of mating holes 32.In order to facilitate description, below only so that one exports gear unit as an example
Illustrate.
As shown in figure 1, in one exports gear unit, two mating holes 33 in a pair of mating holes 33 are separately positioned on
On the adjacent face of two epicyclodial wheels 22, two mating holes 33 in another two pairs of mating holes 33 in each pair mating holes 33 are set respectively
Put on the adjacent face of an epicyclodial wheel and an output 31, three drive blocks 32 are separately positioned on three pairs of mating holes 33
In, and the difference of the external diameter of the internal diameter of each mating holes 33 and drive block 32 is equal to 2 times of the eccentric throw of epicyclodial wheel 22.So, it is defeated
Go out between part 31 and adjacent epicyclodial wheel 22 and between two epicyclodial wheels 22, by the drive connection of drive block 31, and
And in transmission process, each drive block 32 can remain Continuous Contact Transmission, and three with corresponding mating holes 33
It is not interfere with each other between drive block 32.The embodiment will coordinate to further reduce interfering between three drive blocks 32
Hole 33 is arranged to blind hole.
During the RV decelerators work of the embodiment, input gear axle 11 engages with planetary gear 12, realizes that the first order is slowed down；It is bent
The rotation of planetary gear 12 is transferred to two epicyclodial wheels 22 by arbor 21, two epicyclodial wheels 22 make eccentric motion and with roller 23
Engagement, now epicyclodial wheel 22 while being revolved round the sun around its axis, will also the rotation in the presence of roller 23, realize that the second level subtracts
Speed；The rotation of two epicyclodial wheels 22, it is transferred at two outputs 31 by exporting gear unit, is exported by output 31.
It can be seen that the RV decelerators of the embodiment, its input power passes through first order cylindrical gear reducer structure and second level cycloid successively
The double reduction of reducing gear is taken turns, is outwards exported by output mechanism afterwards.
In the RV decelerator courses of work, each three drive blocks 31 for exporting gear unit can play power transmission
Effect, and can play positioning action to two epicyclodial wheels 22, and each drive block 31 is formed and the identical of crank axle 21 motion rail
Mark so that power output can be evenly distributed on three drive blocks 31 of output gear unit, that is, embodiment output transmission
Three drive blocks 31 of unit can play a part of crank axle 21, therefore, can effectively reduce crank axle 21 in RV decelerators
Quantity, without setting two or three crank axles 21 again, and need to only set a crank axle 21 can make power output distribution compared with
To be uniform.Because the quantity of crank axle 21 is reduced, therefore, the RV decelerators of the embodiment, its structure is simpler, installation difficulty
Lower, efficiency of assembling is higher.
Above-described embodiment is equal to the 2 of the eccentric throw of epicyclodial wheel 22 with the difference of the internal diameter of mating holes 33 and the external diameter of drive block 32
Illustrated exemplified by times, but it should be recognized that the difference of the external diameter of the internal diameter of mating holes 33 and drive block 32 can also be equal to outer
Other multiples in 2-2.5 times of the eccentric throw of Cycloidal Wheel 22.For example, mating holes 33 internal diameter and drive block 32 external diameter difference
2.5 times of the eccentric throw of epicyclodial wheel 22 can be equal to, relative to other multiple proportions being arranged in 2-2.5 times, when being arranged to 2
Times or when 2.5, drive block 32 preferably can keep Continuous Contact Transmission with mating holes 33, export uniform force, transmission process
Steadily.
Exemplary embodiment of the present utility model is the foregoing is only, it is all in this reality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., it should be included in of the present utility model
Within protection domain.
Claims (10)
1. a kind of RV decelerators, including input gear axle (11), one positioned at the input gear axle (11) central axis side
Root crank axle (21), the planetary gear (12) for being set on the crank axle (21) and being engaged with the input gear axle (11), partially
The heart is set in two epicyclodial wheels (22) and described two epicyclodial wheels that on the crank axle (21) and phase difference is 180 °
(22) engagement internal messing mechanism and be arranged on the axial both sides of described two epicyclodial wheels (22) and two rotatably set
Output (31), it is characterised in that the RV decelerators also include output gear unit, and the output gear unit includes three
Drive block (32) and three pairs of mating holes (33), wherein：Two mating holes (33) in a pair of mating holes (33) are set respectively
On the adjacent face of two epicyclodial wheels (22), in another two pairs of mating holes (33) in mating holes (33) described in each pair
Two mating holes (33) be separately positioned on an epicycloid disk and the adjacent face of an output (31), three
The individual drive block (32) is separately positioned in three pairs of mating holes (33), and the internal diameter of each mating holes (33) and institute
The difference for stating the external diameter of drive block (32) is equal to 2-2.5 times of the epicyclodial wheel (22) eccentric throw.
2. RV decelerators according to claim 1, it is characterised in that the internal diameter of each mating holes (33) and the biography
The difference of the external diameter of motion block (32) is equal to 2 times or 2.5 times of the epicyclodial wheel (22) eccentric throw.
3. RV decelerators according to claim 1, it is characterised in that the mating holes (33) is blind hole.
4. RV decelerators according to claim 1, it is characterised in that the RV decelerators include at least two outputs
Gear unit, circumference of at least two output gear unit along the epicyclodial wheel (22) are uniformly distributed.
5. according to any described RV decelerators of claim 1-4, it is characterised in that the internal messing mechanism include joggle piece and
Supporting member, the joggle piece are arranged on the inwall of the supporting member, described two epicyclodial wheels (22) with the joggle piece
Engagement.
6. RV decelerators according to claim 5, it is characterised in that the joggle piece is pin tooth or roller (23).
7. RV decelerators according to claim 6, it is characterised in that the joggle piece is roller (23), and the RV subtracts
Fast device also includes the roller limiting structure being correspondingly arranged with the roller (23), and the roller limiting structure is used to limit the rolling
The axial displacement of post (23).
8. RV decelerators according to claim 7, it is characterised in that the roller limiting structure includes being located at the roller
(23) two roller rolling retainers (25) of axial both sides, each roller rolling retainer (25), which is supported, is located at the supporting member, institute
State roller (23) and be located at the roller rolling retainer (25) between the output (31) of the roller (23) the same side.
9. RV decelerators according to claim 5, it is characterised in that the supporting member is housing (24) or hypocycloid wheel.
10. RV decelerators according to claim 5, it is characterised in that the supporting member fixed setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846525.6U CN206904152U (en) | 2017-07-13 | 2017-07-13 | RV decelerators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720846525.6U CN206904152U (en) | 2017-07-13 | 2017-07-13 | RV decelerators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206904152U true CN206904152U (en) | 2018-01-19 |
Family
ID=61312642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720846525.6U Withdrawn - After Issue CN206904152U (en) | 2017-07-13 | 2017-07-13 | RV decelerators |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206904152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191550A (en) * | 2017-07-13 | 2017-09-22 | 北京龙微智能科技股份有限公司 | RV decelerators |
-
2017
- 2017-07-13 CN CN201720846525.6U patent/CN206904152U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191550A (en) * | 2017-07-13 | 2017-09-22 | 北京龙微智能科技股份有限公司 | RV decelerators |
| CN107191550B (en) * | 2017-07-13 | 2023-06-09 | 北京辐全智能科技股份有限公司 | RV reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 2512 Building 2, 7 innovation road, Changping District science and Technology Park, Beijing. Patentee after: BEIJING FUQUAN INTELLIGENT TECHNOLOGY Co.,Ltd. Address before: 102200 2512 Building 2, 7 innovation road, Changping District science and Technology Park, Beijing. Patentee before: BEIJING LONGWEI INTELLIGENT TECHNOLOGY Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230609 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230609 |