CN205896114U - Speed reducer - Google Patents

Abstract

The utility model provides a speed reducer, this speed reducer can make speed reducer's speed reducing ratio increase and not influence the leakproofness. This speed reducer includes, the shell is arranged along whole circumference on its inner peripheral surface and is equipped with the internal tooth teeth of a cogwheel, tooth rest portion, this tooth rest portion is with the help of the bearing in order installing the inner peripheral surface at the shell around speed reducer's the central axis pivoted mode for the shell, the bent axle, it has eccentric portion, and the direction of following the central axis runs through in the axial through hole of tooth rest portion to through the bearing in order supporting in tooth rest portion around its axis pivoted mode, be fixed with drive gear in the one end installation of being close the motor of this bent axle, and oscillating gear, its suit is in the eccentric portion of bent axle, thus through making the bent axle rotate with internal tooth teeth of a cogwheel meshing the carrying on transmission of shell, drive gear sets up in the outside of being close to the axial terminal surface of motor side of tooth rest portion, the input gear who establishes at the tip of the output shaft of motor meshes with drive gear mutually.

Description

Reductor

Technical field

This utility model is related to a kind of reductor.

Background technology

It is known to a kind of effect playing coupling rotating speed and transmission torque between prime mover and working machine or actuator Reductor, specifically, it is changed to rotating speed using the gear ratio of gear, by motor, internal combustion engine or other power source The dynamic retarding running up is to required rotating speed, and obtains larger torque.As one, existed the output of motor in the past Axle is connected with the input gear of reductor, thus the mode that the power of motor is transmitted to reductor.

Application with reductor is more and more extensive, and the original speed reducing ratio of reductor can not in some cases for appearance Meet the situation of needs, the requirement that then expectation reductor speed reducing ratio can become big is also more and more urgent.

Further, since reductor generally is realized slowing down using the transmission of gear, therefore in reductor, grease must not Can lack.Thus, by reductor and motor match use when, need to avoid the lubricating grease leakage in reductor to arrive outside and make Become and in reductor, lack grease, or motor is caused damage along the output shaft entrance motor inside of motor.

Utility model content

Utility model problem to be solved

This utility model is put forward based on above-mentioned background, and its object is to provide a kind of can make subtracting of reductor Speed ratio increases and does not affect the reductor of sealing.

For solution to problem

First technical scheme of the present utility model for providing reductor as described below, moved by it by the rotation inputting from motor Power exports power transmission object it is characterised in that described reductor includes after slowing down, shell, along entirely in inner circumferential surface Circumferential array is provided with internal gear teeth；Tooth rest portion, this tooth rest portion is by bearing with can be with respect to described shell around reductor The mode of center axis thereof is arranged on the inner peripheral surface of described shell；Bent axle, it has eccentric part, along the side of described central axis To the axial pass-through holes through described tooth rest portion, and it is supported on described tooth by way of bearing is rotatable around its axis with energy Wheel carrier portion, is mounted with travelling gear in this bent axle close to one end of motor；And wobble gear, it is sleeved on described song The described eccentric part of axle, engages thus being driven by making described crank rotation with the described internal gear teeth of described shell, Described travelling gear is arranged on the outside of the axial end close to motor-side in described tooth rest portion, is located at the output of described motor The input gear of the end of axle is meshed with described travelling gear, for the power of described motor is delivered to described reductor.

Using technique scheme, because travelling gear is arranged on the outer of the axial end close to motor-side in tooth rest portion Side, therefore travelling gear are not limited by tooth rest portion size such that it is able to pass through to increase travelling gear with the size of input shaft To increase the speed reducing ratio between travelling gear and input shaft, so that the speed reducing ratio of reductor increases.

Second technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described song The quantity of axle is two, and configuration is in the position symmetrical with respect to described central axis.

Using technique scheme, the quantity of part can be reduced, thus reduces cost.

3rd technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described outer The outer peripheral face of shell has the one or more planes removed periphery local along the direction parallel to described central axis.

Using technique scheme, can in the working machine being installed on so-called use object or actuator etc., not with Other parts phases are disturbed, and user can carry out suitable selection as needed.

4th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described tooth The axial end away from motor-side in wheel carrier portion is provided with the multiple installing holes circumferentially arranging.

Using technique scheme, disclosure satisfy that to the installation needs installed using object when reductor is installed.

5th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described The end away from motor-side of the inner peripheral surface of shell is provided with oil sealing mounting groove, is provided with by two oil sealing shapes in this oil sealing mounting groove The w type oil sealing becoming, this w type oil sealing is used for preventing the grease within reductor from leaking between described shell and described tooth rest portion Go out.

Using technique scheme, because oil sealing is w type oil sealing, therefore, it is possible to prevent grease further in reductor Portion leaks into outside reductor.

6th technical scheme of the present utility model is that the reductor according to the 5th technical scheme is it is characterised in that form institute State two oil sealings of w type oil sealing by opposite direction, link in the way of i.e. the back side is relative.

Using technique scheme, due to two oil sealings by opposite direction, link in the way of i.e. the back side is relative, can not only Prevent grease outside and be prevented from oil outside reductor, foreign body etc. and enter into from reductor internal leakage to reductor Inside reductor.

7th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described outer The periphery of shell, along being entirely circumferentially with the flange part protruding to radial outside, is arranged circumferentially from one another at spaced intervals in this flange part Row be provided with multiple depressed parts, this depressed part this flange part outer peripheral face opening and this flange part away from motor-side end Face opening.

Using technique scheme, the weight of reductor can be mitigated, and the area of dissipation of reductor can be increased, from And improve the thermal diffusivity of reductor itself.

8th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described The outer peripheral face of shell is provided with the circumferential slot installed for o type sealing ring.

Using technique scheme, o type sealing ring can be easily installed, mitigate workload when installing.

9th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described The outer peripheral face opening of shell is provided with the supply and discharge fat hole for the inside supply and discharge grease with respect to described reductor.

Using technique scheme, supply and discharge fat hole is opened up by the outer peripheral face in shell, user is when using reductor Carry out supply and discharge grease without separately opening up hole, thus convenient safeguarded in the state of being assembled with working machine or actuator.

Tenth technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described The end away from motor-side of the outer peripheral face in tooth rest portion is provided with phase identification portion.

Using technique scheme, by phase identification portion is provided with component, it is possible to increase correctness during installation.

11st technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that outside The end away from motor-side of shell is provided with the protection board for protecting oil sealing.

Using technique scheme, oil sealing can be protected, it is to avoid oil sealing carries out welding job in reductor 1 using object When be soldered produced spark and damage.

12nd technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that in institute The axial end stating the baseplate part in tooth rest portion is provided with along the recessed fitting portion in the direction of described central axis, or described tooth The periphery edge of the baseplate part in wheel carrier portion becomes fitting portion.

Using technique scheme, user can according to circumstances come to install reductor using suitable mounting means.

13rd technical scheme of the present utility model is that the reductor according to the first technical scheme is it is characterised in that this subtracts Fast machine itself meets iso specification.

Using technique scheme, because reductor is directly becoming iso specification, therefore no longer need as conventional reductor Want other accessories, eliminate accessory.

14th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that at this The interior support of reductor described input gear.

Using technique scheme, by reductor interior support input gear such that it is able to make reductor compact Change.

15th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described The bolt hole for inserting bolt in tooth rest portion is the through hole in tooth rest portion described in insertion.

Using technique scheme, by tooth rest portion is changed to insertion well format positioned at the bolt hole of end plate, profit With bolt, reductor and the object relative with this reductor are screwed, using this bolt carry out tooth rest portion fastening and with The link of this object is such that it is able to easily be fixed from deceleration pusher side.

16th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described Length on the direction of described central axis for flange part length on the direction of described central axis than described internal gear teeth Long.

Using technique scheme, by the length on the direction of central axis described in flange part than internal gear teeth described Length on the direction of central axis is long, thus the deformation of flange part is less, and then can reduce the shell with this flange part Thickness.

17th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that in institute The end stating shell is clamped with o type sealing ring using mounting object component.

Using technique scheme, the circumference for installing o type sealing ring of the outer peripheral face setting of shell can be omitted in Groove, can simplify operation, reduces cost.

18th technical scheme of the present utility model is, the reductor according to the first technical scheme is it is characterised in that described The diameter of the fitting portion than mounting object component for the jointly circumscribed circular diameter of travelling gear is little.

Using technique scheme, the common circumcircle of travelling gear is less than the inner circumferential of mounting object side, therefore, it is possible to reality The densification of existing reductor.

19th technical scheme of the present utility model is, according to arbitrary in the first technical scheme～the 18th technical scheme Reductor is it is characterised in that this reductor utilizes bevel gear drive so that described together with described motor combination The central axis of motor and the central axis of this reductor intersect and by described bevel gear drive by the rotation of motor Rotatory force is delivered to described reductor.

Using technique scheme, reductor and motor drive shaft can be combined together as finished product and be used, use Easy.In addition gear can more reliably be kept using bevel gear.

The effect of utility model

Using the technical solution of the utility model, using the teaching of the invention it is possible to provide a kind of speed reducing ratio that can make reductor increases and do not affect The reductor of sealing.

Brief description

Fig. 1 is the major part along its center axis cutting of the reductor representing the 1st embodiment of the present utility model The figure of outline side section view.

Fig. 2 is the general principal view of the reductor representing the 1st embodiment of the present utility model, is represent reductor defeated Enter the figure of side end face.

Fig. 3 is the figure of the outlet side end face of reductor representing the 1st embodiment of the present utility model.

Fig. 4 be represent the 1st embodiment of the present utility model reductor outline side-looking, rotate 90 ° compared to Fig. 1 Figure.

Fig. 5 is the figure of the diagrammatic perspective of reductor representing the 1st embodiment of the present utility model.

Fig. 6 is the figure of the reductor of a variation representing the 1st embodiment of the present utility model.

Fig. 7 is the figure of the reductor of another variation representing the 1st embodiment of the present utility model.

Fig. 8 is the figure of the reductor of another variation representing the 1st embodiment of the present utility model.

Fig. 9 is the figure of the reductor of another variation representing the 1st embodiment of the present utility model.

Figure 10 is the figure of the reductor of another variation representing the 1st embodiment of the present utility model.

Figure 11 is the figure of the reductor representing the 2nd embodiment of the present utility model.

Description of reference numerals

1st, 1a, 1b, 1c, 1d, 1e, 1 ': reductor；2nd, 2 ': shell；3rd, 3 ': internal gear teeth；4th, 4 ', 4 ": tooth rest portion； 5: bent axle；6: wobble gear；7th, 7 ': w type oil sealing；7a, 7b, 7a ', 7b ': oil sealing；8: travelling gear；9: circumferential slot；10: flat Face；11: installing hole；12: depressed part；13: supply and discharge fat hole；14th, 14 ': base bearing；15: oil sealing mounting groove；G: mounting object structure Part；S:o type sealing ring

Specific embodiment

Content shown here is only to illustrate and for illustratively illustrating to embodiment of the present utility model, chat State this content purpose be that offer is considered can be most effective and will be readily understood that principle of the present utility model and conceptual spy The content of the explanation levied.Based on this point it is therefore intended that in order to fundamentally understand that this utility model excessively illustrates this practicality New detailed configuration, but for make it will be appreciated that the explanation that how to be carried out using cooperation accompanying drawing in practice Lai Realize several mode of the present utility model.In addition, it is necessary to it is to be noted that accompanying drawing is outline represents embodiment, its purport does not exist In embodiment is defined in this, and in figure illustrates size, ratio etc. and is also possible to there is difference with actual.

Hereinafter, referring to the drawings reductor of the present utility model is illustrated.

[the 1st embodiment]

With reference to Fig. 1～5, the reductor of the 1st embodiment of the present utility model is illustrated.Fig. 1 represents this utility model The reductor of the 1st embodiment the major part outline side section view along its center axis cutting.Fig. 2 is to represent that this practicality is new The general principal view of the reductor of the 1st embodiment of type, is the figure of the input end face representing reductor.Fig. 3 is to represent this reality Figure with the output end face of the reductor of the 1st new embodiment.Fig. 4 represents the 1st embodiment of the present utility model Figure outline side-looking, rotating 90 ° compared to Fig. 1 of reductor.Fig. 5 is to represent subtracting of the 1st embodiment of the present utility model The approximate three-dimensional map of fast machine.Fig. 6 is the figure of the reductor of a variation representing the 1st embodiment of the present utility model.Fig. 7 is Represent the figure of the reductor of another variation of the 1st embodiment of the present utility model.Fig. 8 is to represent the of the present utility model 1st The figure of the reductor of another variation of embodiment.Fig. 9 is the another variation representing the 1st embodiment of the present utility model Reductor figure.Figure 10 is the figure of the reductor of another variation representing the 1st embodiment of the present utility model.

In reductor 1 involved by present embodiment, if based on input shaft rotation and bent axle 5 rotates, swing tooth Wheel 6 and eccentric part 5a, 5b of bent axle 5 linkage and carry out swinging and rotate, therefore, by the rotation of wobble gear 6 make shell 2 or Tooth rest portion 4 rotates, and is obtained in that rotated the output after slowing down rotates by input.

As shown in figure 1, reductor 1 includes shell 2,4, three, tooth rest portion, 5, two wobble gears 6 of bent axle and three Travelling gear 8.Input shaft is not shown, is provided with little gear in the top ends of this input shaft.

Shell 2 is in substantially cylindric.The inner peripheral surface of shell 2 has internal gear teeth 3, and this internal gear teeth 3 is by outer at this The whole inner peripheral surface of shell 2 is formed with multiple cotter way 2b and inlays pin respectively in the plurality of cotter way 2b.Each pin is constituted The tooth of internal gear teeth 3.Internal gear teeth 3 is engaged with wobble gear 6.

In addition, being provided with oil sealing mounting groove 15 in the end away from motor (not shown) side of the inner peripheral surface of shell 2, this oil sealing Two oil sealings 7a, 7b being arranged side by side in the axial direction are installed in mounting groove 15.This two oil sealings 7a, 7b form w type oil sealing 7. By arranging double oil sealing, it is possible to increase sealing is such that it is able to more reliably prevent the grease within reductor from outer Leak out between shell 2 and tooth rest portion 4.In addition, though shown in the figure go out to be two oil sealings linked with equidirectional, but this Utility model not limited to this, but this utility model not limited to this, two oil sealing 7a ', 7b ' for example as shown in Figure 6 can also be with In opposite direction, i.e. the relative mode in the back side link.

Certainly, an oil sealing can also be only set as needed.

In addition, as shown in figure 4, the periphery of shell 2 is along being entirely circumferentially with the flange part 17 protruding to radial outside, outside The end away from motor-side of the outer peripheral face of flange part 17 of shell 2 is provided with multiple depressed parts 12.The plurality of depressed part 12 is along shell 2 Circumference spread configuration spaced apart from each other.This depressed part 12 simultaneously the outer peripheral face of flange part 17 and flange part 17 away from The end face opening of motor-side.Alternatively, it is also possible to length ratio in reductor central axial direction for the flange part 17 ' as shown in Figure 9 Length in reductor central axial direction for the internal gear teeth 3 ' is long.

It is provided with the supply and discharge fat hole 13 for the inside supply and discharge grease with respect to reductor 1 in the outer peripheral face of shell 2.

In addition, the outer peripheral face in shell 2 is provided with the circumferential slot 9 being provided as that the o type sealing ring of oil sealing is installed.Furthermore it is possible to Shell 2 away from motor-side end be provided with for from away from motor-side cover w type oil sealing 7 and protect the protection of w type oil sealing 7 Plate 19.Using this protection board 19 avoid oil sealing be decelerated machine 1 carry out being soldered during weld job using object produced Spark damages.

Tooth rest portion 4 pass through base bearing 14 can with respect to shell 2 around reductor center axis thereof support in shell 2 Inner peripheral surface.Tooth rest portion 4 includes baseplate part 4a and end plate 4b.Central part in this tooth rest portion 4 is provided with through hole 4d.Base Plate portion 4a is circumferentially about equally spaced provided with three bent axle through hole 4e (hereinafter referred to as " through holes in through hole 4d 4e "), three through hole 4e are disposed at equal intervals in the circumferential.In addition, for this base bearing 14, can as shown in Figure 1 not The part being equivalent to inner ring is pre-formed on tooth rest portion 4, and is mounted directly the bearing completed products of other companies manufacture.But do not limit In this it is also possible to as shown in figure 9, using the internal home built product of applicant company, that is, in tooth rest portion 4 " in advance Form the part being equivalent to bearing inner race, thus being configured.

Three axle portions 4c, this axle portion 4c and baseplate part 4a are axially protruded in baseplate part 4a close to the end face of motor-side Form one, this axle portion 4c is circumferentially equidistantly spaced from.

Baseplate part 4a is located at the position away from motor-side in tooth rest portion 4.It is provided with the radial direction central part of baseplate part 4a and pass through Perforation 4d.As shown in figure 3, being provided with phase identification portion 20 in tooth rest 4 away from the end of motor-side.For this phase identification portion 20 form be not particularly limited it is illustrated that shown in the form of breach or groove, labelling etc..

Additionally, partly can the becoming from what shell 2 exposed of the end away from motor-side of baseplate part 4a in tooth rest portion 4 Be with as the fitting portion chimeric using the working machine of object, actuator etc., by reductor 1 install with using object When, the fitting portion using object is mutually chimeric with this fitting portion.But not limited to this, this fitting portion can also be in baseplate part 4a Axial end set recess and form.In addition, jointly circumscribed circular diameter being fitted than mounting object component of multiple travelling gears 8 The diameter in portion is little.I.e. as shown in Figure 10, travelling gear 8 is not contacted with mounting object component.

End plate 4b is presented axially in the position close to motor-side in tooth rest portion 4.Radial direction central authorities in end plate 4b Portion is provided with through hole 4f.This through hole 4f and through hole 4d and central part through hole 6b described below is constituted from reductor Axial one end is through to the center through hole of the other end.

End plate 4b through hole 4f be circumferentially about equally spaced provided with three bent axle through hole 4g (hereinafter referred to as For " through hole 4g "), three through hole 4g are located at the one-to-one position of through hole 4e with baseplate part 4a.Each through hole 4g and Each through hole 4e is combined into three crankshaft installed holes for installing bent axle.

As shown in figure 1, end plate 4b is anchored on the end face close to motor-side of axle portion 4c using bolt 4h.In addition, as Fig. 7 The bolt hole 4i for inserting bolt 4h of shown end plate 4b can also be the through hole in insertion tooth rest portion 4 '.

In addition, as shown in figure 3, the axial end away from motor-side in tooth rest portion 4, i.e. output end face are provided with and circumferentially arrange Multiple installing holes 11 of row.It is provided with the o type sealing ring peace being provided as oil sealing in the end close to motor-side of the outer peripheral face of shell 2 The circumferential slot 9 of dress.Close alternatively, it is also possible to clamp o type in the end of shell 2 using mounting object component g as shown in Figure 10 Seal s.

Input shaft plays the effect of the input unit of the driving force as input drive motor (not shown).This input shaft can To be the individual components coaxially connected with the output shaft of motor, in that case, this input shaft can pass through shaft coupling and horse The top of the output shaft reaching links together.Described input shaft can also be held a concurrent post by the output shaft of motor.Top in input shaft The outer peripheral face in portion is provided with input gear.In addition, as shown in Figure 8 it is also possible to the not outer peripheral face setting at the top ends of input shaft Input gear 18, but the inner utilization bearing 22 in reductor 1 to carry independent input gear 18.

Three bent axles 5 are respectively arranged on three crankshaft installed holes.Each bent axle 5 is each propped up by a pair of crankshaft bearing 16a, 16b Hold as (with reference to Fig. 1) can be rotated around central axis with respect to tooth rest portion 4.Specifically, in each bent axle 5 from axial one The part having held the axially inner side to designated length is provided with the first crankshaft bearing 16a, and this first crankshaft bearing 16a is installed in The through hole 4e of baseplate part 4a.In addition, being provided with the second crankshaft bearing 16b in the other end of the axial direction of each bent axle 5, this second Crankshaft bearing 16b is installed in the through hole 4g of end plate 4b.Accordingly, bent axle 5 can rotationally be supported in baseplate part 4a and End plate 4b.

Each bent axle 5 has bent axle main body 5c and first eccentric part 5a integral part of with this bent axle main body 5c, the second bias Portion 5b.First eccentric part 5a and the second eccentric part 5b is axially aligned to be located at by the part of two crankshaft bearing 16a, 16b supportings Between.First eccentric part 5a and the second eccentric part 5b cylindrical form respectively, all eccentric in the axle center with respect to bent axle main body 5c In the state of, prominent to radial outside from bent axle main body 5c.First eccentric part 5a and the second eccentric part 5b respectively from axle center to refer to Fixed offset is eccentric, and is configured to be mutually of the phase contrast of specified angle.

Reductor 1 has two wobble gears 6, and this two wobble gears 6 are positioned at the inner peripheral surface by shell 2, baseplate part 4a And in the inner space that surrounded of end plate 4b, two wobble gear 6 arranged in the axial direction, and, this two swings Gear 6 is respectively arranged in first, second eccentric part 5a, 5b of each bent axle 5 by roller bearing 21.Here, because two swing Gear is identical, therefore only the wobble gear being installed on the first eccentric part 5a is illustrated.

Wobble gear 6 has the size of the internal diameter being slightly less than shell 2.Wobble gear 6 has external tooth 6a, central part through hole 6b, three eccentric part through hole 6c and three axle portion through hole 6d.

Central part through hole 6b is located at the radial direction central part of wobble gear 6.Between input shaft is with central part through hole 6b There is the state of clearance through central part through hole 6b.

Three eccentric part through hole 6c in wobble gear 6 in equally spaced mode in the circumferential located at central part through hole 6b Around.In the state of first eccentric part 5a of each bent axle 5 is provided with roller bearing 21 between each eccentric part through hole 6c Extend through in each eccentric part through hole 6c.

Three axle portion through hole 6d in wobble gear 6 in equally spaced mode in the circumferential located at central part through hole 6b's Around.Each axle portion through hole 6d is respectively arranged on the position between adjacent eccentric part through hole 6c in the circumferential.Run through in each axle portion There is corresponding axle portion 4c there is the state of clearance run through in the 6d of hole.

So bent axle 5 runs through wobble gear 6, if each bent axle 5 rotates and eccentric part eccentric rotary, wobble gear 6 with should Eccentric part 5a eccentric rotary linkage, engage with internal gear teeth 3 while swinging rotation, thus this wobble gear 6 with respect to Shell 2 rotates.

Travelling gear 8 is used for for rotation passing to corresponding bent axle 5.Each travelling gear 8 respectively outer be embedded in be located at corresponding The end close to motor-side of axle main body 5c of bent axle 5, and engage with the little gear being located at input shaft one end.Each travelling gear 8 Around the rotary shaft identical axis with bent axle 5 and bent axle 5 unitary rotation, thus being driven to bent axle 5.In addition, travelling gear 8 It is located at the side close to motor of first, second eccentric part 5a, 5b of bent axle 5.

In the case that reductor 1 has input shaft in itself, the reductor 1 of present embodiment can be passed using bevel gear Motivation structure is together with motor combination so that the central axis of motor is intersected with the central axis of this reductor 1, by described The rotary power of motor is delivered to reductor 1 by bevel gear drive.In addition, reductor 1 itself meets iso9409-1 rule Lattice.

According to above 1st embodiment, effect shown below can be played.

Because travelling gear 8 is arranged on the outside of the axial end close to motor-side in tooth rest portion 4, and with reductor 1 Installed surface place side contrary, the size of therefore travelling gear 8 and input shaft do not limited by tooth rest portion size such that it is able to Speed reducing ratio between travelling gear 8 and input shaft is increased by increase travelling gear 8, so that the speed reducing ratio of reductor 1 increases Greatly.In addition, input shaft needs to seal with the side of travelling gear 8 cooperation, and opposite side does not need to seal, and does not therefore affect to slow down Machine 1 sealing of itself.In addition, reductor 1 interior support input gear such that it is able to make reductor densification.

Further, since the outer peripheral face in shell 2 is provided with the circumferential slot 9 being provided as that the o type sealing ring of oil sealing is installed.Therefore, Reserve installation site for o type sealing ring such that it is able to easily install o type sealing ring.Alternatively, it is also possible to the end face in shell 2 Place is clamped with o type sealing ring using mounting object component, be thus omitted in shell 2 outer peripheral face setting close for installing o type The circumferential slot of seal, can simplify operation, reduces cost.

It is provided with the axial direction in the oil sealing mounting groove of the end away from motor (not shown) side of the inner peripheral surface of shell 2 Two oil sealings 7a, 7b being arranged side by side, this two oil sealings 7a, 7b become w type oil sealing such that it is able to prevent further grease from Reductor 1 internal leakage.In addition this two oil sealings can by opposite direction, link in the way of i.e. the back side is relative, thus can not only Prevent grease from can also prevent the oil outside reductor 1, foreign body etc. from entering into inside reductor 1 from reductor internal leakage.

In addition, shell 2 be additionally provided with protection board 19 for protecting oil sealing 7a, 7b away from motor end, thus can also protect Shield oil sealing, it is to avoid oil sealing is decelerated carrying out produced spark during weld job using object and damaging of machine 1.

And, in conventional reductor, it is not previously provided with supply and discharge fat hole in the outer peripheral face of shell, but on axle It is provided with supply and discharge fat hole, cannot directly use under therefore some special assembled states, thus sometimes safeguarding inconvenient.Using this reality Apply the reductor 1 of mode, because the outer peripheral face opening in shell 2 is provided with for the inside supply and discharge grease with respect to reductor 1 Supply and discharge fat hole 13, therefore can directly use under any circumstance, convenient in the state with working machine or actuator assembling Under safeguarded.

The flange part 17 of shell 2 outer peripheral face the end away from motor-side with side circumferentially spaced at intervals Formula is provided with multiple depressed parts 12.The radiating of reductor itself thereby, it is possible to mitigate the weight of reductor itself, can also be increased simultaneously Area, thus improve thermal diffusivity.

In addition, flange part can also length in reductor central axial direction than internal gear teeth in reductor central shaft Length on line direction is long.Deformation by this flange part is less, and then can reduce the thickness of the shell with this flange part.

Further, since the peripheral end of the baseplate part 4a in tooth rest portion 4 can become embedding with working machine, actuator etc. The fitting portion closing, or this fitting portion also can arrange in the way of recessed at the axial end in baseplate part 4a.Thus, use Person can according to circumstances come to install reductor using suitable mounting means.In addition, the common circumcircle of multiple travelling gears 8 The diameter of the fitting portion than mounting object component for the diameter is little.Thus, the common circumcircle of multiple travelling gears compares mounting object The inner circumferential of side little such that it is able to be mounted directly mounting object, reductor densification can be made.

Additionally, the bolt hole for inserting bolt 4h in tooth rest portion 4 can also be the through hole in insertion tooth rest portion 4. Thus, using bolt 4h, reductor and the object relative with this reductor 1 are screwed, carry out tooth rest portion using this bolt 4 fastening and with the link of this object such that it is able to easily be fixed from deceleration pusher side.

Because in tooth rest portion 4 away from the axial end of motor-side, i.e. output end face is provided with circumferentially arrange multiple Installing hole.Thereby, it is possible to meet installation needs when reductor is installed.

It is provided with phase identification portion 20 in tooth rest portion 4 away from the end of motor-side.Thus, it is possible to just improve during installation Really property.Further, since reductor is directly becoming iso specification, therefore no longer need other accessories as conventional reductor, omit Accessory.

[the 2nd embodiment]

Referring next to Fig. 6, the 3rd embodiment of the present utility model to be described.2nd embodiment and the area of the 1st embodiment It is not, in the 3rd embodiment, the outer peripheral face of the shell 2 ' of reductor 1 ' has along the central axis parallel to reductor 1 ' A direction plane 10 that the periphery local of shell is removed.

By using the 2nd embodiment, the outer peripheral face due to the shell to reductor cuts, can be by reductor When being installed on working machine or actuator etc., do not disturb with other parts phases, user can be carried out suitably as needed Selection.

In addition, though the quantity of the 2nd embodiment midplane 10 is one, but be not limited to this or two with Multiple planes of upper quantity.Those skilled in the art can be selected according to practical situation.

[the 3rd embodiment]

3rd embodiment is with the difference of the 1st embodiment, and in the 3rd embodiment, the bent axle quantity of reductor is Two, and this two bent axle configurations are in the symmetrical position of the central axis of reductor relatively.Therefore, travelling gear, crankshaft installed Also each it is correspondingly provided with two with hole, eccentric part through hole, axle portion through hole.Remaining structure of 3rd embodiment is real with the 1st Apply mode identical.

By using the 3rd embodiment, the number of parts of reductor, reduces cost can be reduced.

Of the present utility model concrete example has been described in detail above, but these are only exemplified with one of the present utility model Point, it is not that claims are defined.In technology described in claims, comprise to tool illustrated above Style carry out various modifications, change after technical scheme.Technical characteristic illustrated by this specification or accompanying drawing individually or passes through Various combinations, to play technological applicability, are not limited to the combination described in claim when applying for.In addition, this specification Or the technology illustrated in accompanying drawing realizes multiple technical purposes simultaneously, and realize one of technical purpose and inherently there is technology Practicality.

Claims (19)

1. a kind of reductor, its will the rotary power that input from motor slow down after export power transmission object it is characterised in that

Described reductor includes:

Shell, is provided with internal gear teeth along whole circumferential array in inner circumferential surface；

Tooth rest portion, this tooth rest portion by bearing by can with respect to described shell around the center axis thereof of reductor in the way of It is arranged on the inner peripheral surface of described shell；

Bent axle, it has eccentric part, along described central axis direction through the axial pass-through holes in described tooth rest portion, and lead to Cross bearing and be supported on described tooth rest portion in the way of energy is rotatable around its axis, install close to one end of motor in this bent axle solid Surely there is travelling gear；And

Wobble gear, it is sleeved on the described eccentric part of described bent axle, by make described crank rotation and the institute with described shell State internal gear teeth to engage thus being driven,

Described travelling gear is arranged on the outside of the axial end close to motor-side in described tooth rest portion,

The input gear of end being located at the output shaft of described motor is meshed with described travelling gear, for by described motor Power is delivered to described reductor.

2. reductor according to claim 1 it is characterised in that

The quantity of described bent axle is two, and its configuration is in the position symmetrical with respect to described central axis.

3. reductor according to claim 1 it is characterised in that

The outer peripheral face of described shell has removing periphery local along the direction parallel to described central axis Or multiple plane.

4. reductor according to claim 1 it is characterised in that

The axial end away from motor-side in described tooth rest portion is provided with the multiple installing holes circumferentially arranging.

5. reductor according to claim 1 it is characterised in that

Be provided with oil sealing mounting groove in the end away from motor-side of the inner peripheral surface of described shell, be provided with this oil sealing mounting groove by The w type oil sealing that two oil sealings are formed, this w type oil sealing is used for preventing the grease within reductor from described shell and described gear Frame spills between portion.

6. reductor according to claim 5 it is characterised in that

Formed two oil sealings of described w type oil sealing by opposite direction, link in the way of i.e. the back side is relative.

7. reductor according to claim 1 it is characterised in that

The periphery of described shell along being entirely circumferentially with the flange part protruding to radial outside, this flange part circumferentially from one another every Open compartment of terrain arrangement be provided with multiple depressed parts, this depressed part this flange part outer peripheral face opening and this flange part away from The end face opening of motor-side.

8. reductor according to claim 1 it is characterised in that

It is provided with the circumferential slot installed for o type sealing ring in the outer peripheral face of described shell.

9. reductor according to claim 1 it is characterised in that

It is provided with the supply and discharge fat hole for the inside supply and discharge grease with respect to described reductor in the outer peripheral face opening of described shell.

10. reductor according to claim 1 it is characterised in that

It is provided with phase identification portion in the end away from motor-side in described tooth rest portion.

11. reductors according to claim 1 it is characterised in that

It is provided with the protection board for protecting oil sealing in described shell away from the end of motor-side.

12. reductors according to claim 1 it is characterised in that

The side along described central axis for being fitted together to using object is provided with the axial end of the baseplate part in described tooth rest portion To recessed fitting portion, or the peripheral end of the baseplate part in described tooth rest portion becomes the fitting portion for being fitted together to using object.

13. reductors according to claim 1 it is characterised in that

This reductor itself meets iso specification.

14. reductors according to claim 1 it is characterised in that

Described input gear in the interior support of this reductor.

15. reductors according to claim 1 it is characterised in that

The bolt hole for inserting bolt in described tooth rest portion is the through hole in tooth rest portion described in insertion.

16. reductors according to claim 7 it is characterised in that

Length on the direction of described central axis for the described flange part is than described internal gear teeth in the direction of described central axis On length long.

17. reductors according to claim 1 it is characterised in that

It is clamped with o type sealing ring in the end of described shell using mounting object component.

18. reductors according to claim 17 it is characterised in that

The diameter of the fitting portion than described mounting object component for the jointly circumscribed circular diameter of described travelling gear is little.

19. reductors according to any one of claim 1～18 it is characterised in that

This reductor utilize bevel gear drive with described motor combination together with so that the central axis of described motor and The central axis of this reductor is intersected and is delivered to the rotary power of motor by described bevel gear drive described Reductor.