CN2648183Y - Bearing reducer - Google Patents

Abstract

The utility model relates to a bearing formula decelerator, it is by the action wheel, drive swivel mount, outer sleeve and bearing group constitute, this action wheel has more than one drive wheel that is eccentric settings, the drive wheel periphery sets up the bearing, drive swivel mount periphery ring in addition and establish the through-hole that passes through empty, the through-hole periphery sets up the piece that supports with drive wheel periphery bearing contact, the number is established to the peripheral face ring in the sleeve in addition and is more than the slot that supports the piece, the potential difference between piece and slot is supported by eccentric design cooperation, make the part support the piece promote and the rotating, in order to reach the purpose of speed reduction, the event need not only set up the gear train, and when each component is mutually supported, also can not produce very big noise during its transmission, and have after the constitution not account for the space and make the lower advantage of cost, and be fit for the industry and adopt.

Description

The bearing type speed reducer

Technical field

The utility model is about a kind of bearing type speed reducer, especially refer to a kind of by eccentric driving wheel with push part, outer sleeve groove and do not wait the formed potential difference of number, reach splendid deceleration effect, and can effectively reduce noise and prevent that the speed reducer of each member wearing and tearing from designing.

Background technique

Retarder is very extensive in the purposes of industry at present, especially in the indispensable especially equipment of motor transmission design aspect, and be widely used on the various traffic tool, for example possess comfortable light electric bicycle, automobile or the locomotive etc. that drive effect, and on the work mechanism of essential collocation retarder utilization, wherein, the structural design of tradition retarder, it mainly is start principle by planetary gear set, and utilize being meshing with each other and rotating between the gear of some different gear ratios, so that can reach the function that tool slows down during the motor transmission.

Thought aforementioned conventional retarder, though can effectively reach the function of deceleration, and also constantly improve through relevant dealer, and form in the retarder research and development that more different structures and Perfect in shape and function are arranged on the market, yet no matter how traditional retarder is improved, it finally still need utilize cooperatively interacting between each gear to reach deceleration, so when reality was used, the many shortcomings that still have the following stated existed:

During 1, owing to the start of gear type retarder, mainly be to utilize the transmission that is meshing with each other between each gear to reach, gear is when continuous engagement driving as only, also relatively easily wearing and tearing of intermeshing flank of tooth place between each gear, therefore, under long-standing use, its running can't be smooth and easy, causes this retarder also to damage easily.

2, when each gear of this retarder during in start, the contact between its each gear during engagement also is easy to generate great noise, therefore, is not suitable for the quiet traffic tool of having relatively high expectations or mechanically.

3, because the main composition of the wheeled retarder of conventional tooth, be with gear train be configured to mainly, therefore, overall weight and volume after it is formed are relatively large, and also take up space, and do not emphasize on the light traffic tool that drive effect and be suitable for.

4, the wheeled retarder of conventional tooth, unitary construction are quite complicated, and its requirement on machining accuracy is higher, and the matched combined between each gear also need so its manufacture cost also improves relatively, not meet economic benefit through accurate calculating.

The model utility content

Therefore, for improving the shortcoming of aforementioned conventional gear type retarder, the inventor is that a kind of " bearing type speed reducer " designed in research and development, uncommon design by this, make it need not utilize gear can reach deceleration, reducing wear, do not take up space, reduce the effect of noise and manufacture cost to reach effectively, is to be its main goal of the invention.In order to reach aforesaid goal of the invention, the technological means that the utility model used is to be to provide a kind of bearing type speed reducer, and it includes:

One driving wheel is to have to be the eccentric drive wheel that is provided with more than one, and drive wheel one side forms drive-connecting shaft, and in its peripheral sheathed bearing;

One drives swivel base, and it has body, and body one side forms opening end, side then is a closed end in addition, extends output shaft in closed end, and can insert the driving wheel of sheathed bearing from opening end, and the saturating empty through hole that the proper corresponding body periphery ring of bearing is established, in through hole, be provided with and push part;

One outer sleeve, its inner formation for driving the ccontaining containing space wherein of swivel base, containing space inner peripheral edge surfaces ring is established groove, and the number of groove is more than the quantity that pushes part.

Described bearing type speed reducer, its driving wheel are the design of two drive wheels, are be 180 degree eccentric corresponding between two drive wheels.

Described bearing type speed reducer, its part that pushes that drives swivel base is cylindric.

Described bearing type speed reducer, it drives swivel base one side and forms sleeved part, and outer sleeve one side corresponding part forms depressed part, between sleeved part and depressed part bearing is set.

Described bearing type speed reducer, its driving wheel inside is provided with positioning hole, and unilateral bearing is set in the positioning hole.

Combination by said structure, the deceleration power output of this speed reducer, mainly be the off-centre design that utilizes driving wheel, cooperation pushes part and outer sleeve does not wait the formed potential difference of number, only promotes by partly pushing part, to reach the purpose of deceleration, so gear train need be set fully, and more not easy to wear when cooperatively interacting between each member, also can not produce great noise during its transmission, and do not take up space and advantage of low manufacturing cost after having combination concurrently, adopted and be fit to industry.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is a sectional view of the present utility model.

Fig. 3 is a positive view one of the present utility model.

Fig. 4 is a positive view two of the present utility model.

Fig. 5 is the sectional view of the utility model first mode of execution.

Fig. 6 is the positive view of the utility model first mode of execution.

Schematic representation when Fig. 7 is the eccentric rotation of the utility model driving wheel start.

Fig. 8 is the sectional view of the utility model second mode of execution.

Fig. 9 is the positive view of the utility model second mode of execution.

Sectional view when Figure 10 is the use of the utility model second mode of execution.

Positive view when Figure 11 is the use of the utility model second mode of execution.

In the accompanying drawing:

10--driving wheel 11--drive wheel

111--drive-connecting shaft 12--drive wheel

13--positioning hole 14--unilateral bearing

20--drives swivel base 21--body

211--containing space 212--ora terminalis

213--through hole 214--sleeved part

215--output shaft 216--pivoted hole

22--pushes part 30--outer sleeve

31--body 311--containing space

312--groove 313--depressed part

40--bearing pack 41--bearing

42--bearing 43--bearing

44--bearing 50--motor

51 1 axostylus axostyle 60--fixing-assemblys

The 70--wheel rim

Embodiment

For making your juror can understand structural design of the present utility model really, and other goal of the invention and effect, below enumerate a specific embodiment now, and cooperate graphic being described in detail as follows:

Relevant concrete enforcement design of the present utility model sees also shown in Figure 1ly, is the three-dimensional exploded view of the utility model bearing type speed reducer, and it drives swivel base 20, an outer sleeve 30 and bearing pack 40 by a driving wheel 10, forms, wherein:

Driving wheel 10, it has the drive wheel that is eccentric setting more than, and be depicted as the design of two drive wheels 1112 on the figure, this moment, 1112 of two drive wheels were be 180 degree eccentric corresponding, and, extend drive-connecting shaft 111 in the center of whole speed reducer in drive wheel 11 1 side end faces, so compared to drive-connecting shaft 111, drive wheel 11 is down eccentric design, and 12 of drive wheels are up eccentric design; 111 side in addition forms positioning hole 13 in driving wheel 10 compared to drive-connecting shaft in addition, please cooperate referring to shown in Figure 2, one unilateral bearing 14 is set in positioning hole 13, and compel to connect the axostylus axostyle 51 of motor 50 transmission power by unilateral bearing 14, motor 50 can be the DC inverter motor that volume is little and torsion is big, to be applicable on the comparatively light electric bicycle of structural design.

Drive the body 21 that swivel base 20 has general rounded sleeve shape, it is the ora terminalis 212 of opening end than big and inside that body 21 1 sides form diameter, it is less and be the sleeved part 214 of closed end that opposite side forms diameter, in sleeved part 214 outsides and extend the output shaft 215 of tool screw section, and be containing space 211 in body 21 inside, containing space 211 forms pivoted hole 216 towards output shaft 215 directions, and establish the through hole 213 of corresponding driving wheel 10 in body 21 periphery rings, if driving wheel 10 is single design, it then on body 21 through hole 213 that forms the monocycle annular arrangement, if as shown in scheming to go up, it is the design of two driving wheels 1112, then on body 21, promptly form the through hole 213 of dicyclo annular arrangement,, push part 22 and can be columned design in addition in all sheathed part 22 that pushes of each through hole 213.

Outer sleeve 30, it has the body 31 of rounded hollow shape, its wide footpath is to cooperate driving wheel 10 and design, if the design of two drive wheels, its wide footpath is promptly bigger, if the design of a drive wheel, then its wide footpath is less, form containing space 311 in the body 31 in addition, ring is established the corresponding groove 312 that drives swivel base 20 through holes 213 and be arranged radially in containing space 311, and groove 312 is circular-arc design, and its groove 312 numbers are greater than driving set part 22 quantity that push in the swivel base 20 single rings, in corresponding sleeved part 214 positions that drive swivel base 20 of containing space 311 1 side inner edges, form the depressed part 313 of a link spring shape in addition.

When speed reducer in addition of the present utility model is assembled, be fitted bearing group 40 and the group establish, bearing pack 40 is the bearings 41 by different-diameter, 42,43,44 form, wherein, two bearings 41,42 are sheathed on two drive wheels 11 of driving wheel 10 respectively, 12 peripheries, one bearing 43 is sheathed on its drive-connecting shaft 111 peripheries, and 313 of depressed parts that another bearing 44 are sheathed on the sleeved part 214 that drives swivel base 20 and outer sleeve 30, so when assembling is used, please cooperate and consult Fig. 2, shown in Figure 3, but even the bearing 41 of bearing pack 40,42,43 are sheathed on two drive wheels 11 of driving wheel 10 earlier, 12 and drive-connecting shaft 111 peripheries, and via containing space 211 1 side openings that drive swivel base 20, it is arranged at this containing space 211 inside, the bearing 43 that is sheathed on drive-connecting shaft 111 peripheries then is located in the pivoted hole 216, what equal number was set in the severals through holes 213 that drive swivel base 20 in addition in regular turn pushes part 22, and makes and respectively push part 22 peripheries and be sheathed on drive wheel 11, bearing 41 on 12,42 peripheries contact.

Again, with soon having assembled driving swivel base 20 members of finishing such as grade, be arranged in the containing space 311 of outer sleeve 30, and the output shaft 215 that drives swivel base 20 containing space 311 1 side openings of outer sleeve 30 that also stretch through out, at last, in the sleeved part 214 that drives swivel base 20 and 313 of the depressed parts of outer sleeve 30 another bearing 44 is set, can finishes the assembling operation of the utility model speed reducer; At this moment, when drive wheel is two design, by can seeing respectively among Fig. 3 and Fig. 4 and in the same time, different drive wheel 11,12 and be positioned at the relativeness that pushes 30 of part 22 and outer sleeves of different rings, wherein:

Because 1112 of two drive wheels are be 180 degree eccentric corresponding, so be located at the bearing 42 on the drive wheel 11, be can compressing be arranged at drive swivel base 20 wherein a ring push part 22, groove 312 in side direction pushing and pressing outer sleeve 30, and be located at bearing 41 on another drive wheel 12, also can oppress be arranged at drive swivel base 20 another rings push part 22, push against the groove 312 of outer sleeve 30 simultaneously in other direction, both pushing and pressing directions then just are the opposite direction correspondences of 180 degree.

When reality is used, the utility model bearing type speed reducer is the work mechanism that can be applicable to the various traffic tool and the utilization of essential collocation speed reducer, and when being applied to as electric bicycle, when automobile or locomotive, the power output of its deceleration control, be to be respectively the output shaft 215 that drives swivel base 20 directly to export, or setting firmly rim of vehicle wheel on outer sleeve 30 rotates to cooperate thereupon, and utilize the design of the unilateral bearing 14 that is forced in its driving wheel 10 positioning holes 13, when motor 50 axostylus axostyles 51 that connect this unilateral bearing 14 during in single specific direction rotation, then unilateral bearing 14 can drive driving wheel 10 and be matched with same direction rotation, to carry out deceleration smoothly, wherein:

As Fig. 5 and shown in Figure 6, when the power of deceleration control is output as the output shaft 215 direct outputs that drive swivel base 20, then can utilize suitable fixing-assembly 60 that outer sleeve 30 is located earlier, it can not rotated arbitrarily, at this moment, when motor 50 drives driving wheel 10 rotations, because the drive wheel 11 of driving wheel 10,12 axostylus axostyles 51 with respect to motor 50 transmission power are eccentric design, so when motor 50 drives these driving wheel 10 rotations, its drive wheel 11, the 12nd, in the containing space 211 that drives swivel base 20, carry out off-centre rotation start as shown in Figure 7, and when rotation, be arranged at this drive wheel 11, bearing 41 on 12,42, also can oppress to be arranged at and push part 22 in the several through holes 213 that drive swivel base 20, make respectively push part 22 can be in different time, in regular turn it is partly pushed the constantly outside grooves 312 of pushing and pressing outer sleeves 30 of part 22.

Design by this, when pushing the constantly groove 312 of pushing and pressing outer sleeve 30 of part 22, and cooperate aforementioned drive wheel 11, distance between 12 both eccentric point, and when rotation formed eccentric circular trace, the part that then drives swivel base 20 pushes the groove 312 that part 22 promptly can push against outer sleeve 30 in regular turn, and the contrast active force that produces, move and form hypocycloid, at this moment, driving swivel base 20 is can be with respect to the sense of rotation of motor 50, form reciprocal rotation, and reach the effect of deceleration simultaneously, therefore, maybe need arrange in pairs or groups the work mechanism of speed reducer utilization when being fixed on the output shaft 215 that drives swivel base 20 when the wheel of the various traffic tool, be the deceleration effect that can reach splendid really.

Fig. 8 and shown in Figure 9 for another example, when being output as outer sleeve 30, the power of deceleration control sets firmly rim of vehicle wheel 70 directly during output, then can earlier the output shaft 215 that utilizes suitable fixing-assembly will drive swivel base 20 be located, driving swivel base 20 itself can not rotated arbitrarily, at this moment, when motor 50 drives driving wheel 10 rotations, make drive wheel 11,12 carry out off-centre when rotating start in the containing space 211 that drives swivel base 20, then be arranged at this drive wheel 11, bearing 41 on 12,42, also can oppress to be arranged at and push part 22 in the several through holes 213 that drive swivel base 20, make respectively push part 22 can be in different time, in regular turn it is partly pushed the constantly outside grooves 312 of pushing and pressing outer sleeves 30 of part 22.

Design by this, because driving swivel base 20 can not rotate arbitrarily, and utilize the off-centre design of aforementioned drive wheel 11,12, and cooperate to drive the potential difference design that swivel base 20 respectively pushes part 22 and 312 of outer sleeve 30 grooves, then as Figure 10 and shown in Figure 11, this outer sleeve 30 promptly can begin to rotate, and reach the deceleration effect simultaneously, therefore, when the rim of vehicle wheel 70 of the various traffic tool is sheathed on the outer sleeve 30, still can reach splendid deceleration effect.

By above-mentioned architectural feature and compound mode, the characteristics of the utility model bearing speed reducer are:

1, because deceleration device of the present utility model when actual start, mainly is the off-centre of utilizing driving wheel 10 Design, and the bearing 41 of fitted bearing group 40,42 compressings drive swivel bases 20 push part 22, make it Constantly the groove 312 formed contrast active forces of pushing and pressing outer sleeve 30 are reached, so phase interworking between each member More not easy to wear when closing, even under long-standing use, its running also can be quite smooth and easy and not fragile.

2, the design that utilizes aforesaid deceleration to rotate, then the utility model also can not produce the utmost point when actual start Therefore big noise, is applicable to the quiet vehicles of having relatively high expectations or mechanically.

3, compared to the main composition of the wheeled decelerator of conventional tooth, be with gear train be configured to main, then this practicality Novel deceleration device is after forming, and its whole weight and volume are relatively to reduce, and do not take up space, and are suitable for In emphasizing on the light vehicles that drive effect.

4, deceleration device unitary construction composition of the present utility model is quite simple and easy, and requirement on machining accuracy need not be set Need the accurate gear train that calculates during higher and matched combined, so its manufacturing cost is also relatively low, and meet economic effect Benefit.

By above explanation as can be known, the utility model bearing speed reducer can make it need not utilize gear to reach To deceleration, reduce wear, do not take up space, reduce the effect of noise and manufacturing cost to reach effectively, and fit Close industry and adopted, it really is a quite excellent design.

Claims (5)

1, a kind of bearing type speed reducer is characterized in that it includes:

One driving wheel is to have to be the eccentric drive wheel that is provided with more than one, and drive wheel one side forms drive-connecting shaft, and in its peripheral sheathed bearing;

One drives swivel base, and it has body, and body one side forms opening end, side then is a closed end in addition, extends output shaft in closed end, and can insert the driving wheel of sheathed bearing from opening end, and make bearing close the saturating empty through hole that corresponding body periphery ring is established, in through hole, be provided with and push part;

One outer sleeve, its inner formation for driving the ccontaining containing space wherein of swivel base, containing space inner peripheral edge surfaces ring is established groove, and the number of groove is more than the quantity that pushes part.

As 1 described bearing type speed reducer of claim the, it is characterized in that 2, wherein, driving wheel is the design of two drive wheels, is be 180 degree eccentric corresponding between two drive wheels.

As claim the 1 or 2 described bearing type speed reducer, it is characterized in that 3, wherein, the part that pushes that drives swivel base is cylindric.

4, as 3 described bearing type speed reducer of claim the, it is characterized in that, wherein, drive swivel base one side and form sleeved part, and outer sleeve one side corresponding part forms depressed part, between sleeved part and depressed part bearing is set.

5, as 4 described bearing type speed reducer of claim the, it is characterized in that wherein, driving wheel inside is provided with positioning hole, and unilateral bearing is set in the positioning hole.

Images