CN2386815Y

CN2386815Y - Drive posive and reverse rotating device for massage chair

Info

Publication number: CN2386815Y
Application number: CN 99217767
Authority: CN
Inventors: 陈永泉
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-10
Filing date: 1999-08-10
Publication date: 2000-07-12
Anticipated expiration: 2009-08-10

Abstract

The utility model relates to a drive positive and reverse rotating device for massage chairs, which relates to a mechanical transmission mechanism, and the utility model has the advantages of simple structure, few parts and good operation. The tooth-shaped tooth edge of an end gear of a free ion is provided with a parallel edge which is parallel with the center line of a driving main shaft, and the other edge extends from a gear trough end to the top tail end of the parallel edge to form a sliding and pushing circular arc pushing surface which forms single-edge engaged linkage. The tooth shape of an end gear on the other end of the free ion forms a symmetrical shape with the sliding and pushing circular arc pushing surface, and the tooth shapes of a helical gear and an end gear of a worm screw also form corresponding parallel edges and circular arc pushing surfaces and are oppositely provided and engaged with the end gears of the free ion. The utility model is used for massage chairs.

Description

The positive inversion set of the driving of massage armchair

This utility model relates to mechanical transmissioning technology, refers in particular to a kind of actuating device that is used to massage driving.

The drives structure of existing massage armchair and die clutch construction thereof be as shown in Figure 1, 2: motor M interlock one drive shaft 11, one helical gear 12 and helical gear 131 engagements of kneading in the rotating shaft 13 are arranged on the drive shaft 11, its speed ratio is 1: 1, drive shaft 11 end in addition is a worm screw 14 and worm gear 16 engagements of beating rotating shaft 15, this kneading rotating shaft 13 is asynchronous rotation with beating rotating shaft 15, when drive shaft 11 just, when reversing, mat clutch 20, make helical gear 12 or worm screw 14, transmission is kneaded rotating shaft 13 or is beaten rotating shaft 15 respectively.Clutch 20 has a left side, right positioning sleeve 21,22, on its edge has, the locating hole 211 that following correspondence runs through, 221 and positioning sleeve 21,22 covers are fixed in the locating shaft 101 of body 10, positioning sleeve 21,22 articulate a rotor 23 free to rotate, rotor 23 and positioning sleeve 21,22 are with pad 24, axis hole is threaded hole 231 and is provided with helical rotor 25 in the rotor 23, helical rotor 25 two ends extend the end tooth wheel 252 of square shaped teeth, the end tooth wheel 121 that the axle head of this end tooth wheel 252 and helical gear 12 and worm screw 14 is provided with, 141 is corresponding, in helical rotor 25 be provided with polygonal hole 251 and in view of the above helical rotor 25 free slippages be socketed on the polygon bar position of drive shaft 11.After motor M rotation, mat threaded hole 231, rotor 23 produces axial displacements, makes end tooth wheel 252 be abutted against the end teeth wheel 121 of helical gear 12 and is engaged and linked, and drive helical rotor 25 and rotate synchronously this moment; When drive shaft 11 reversed, helical rotor 25 inversion axis moved, and other end gear 252 meshes with the end tooth wheel 141 of worm screw 14, drove worm screw 14 and rotor 23 rotations synchronously, made kneading rotating shaft 13 thus, beat rotating shaft 15 actions.This major defect that is just reversing drive mechanism is:

1, the spiral groove of this helical rotor 25 and rotor 23 very easily is out of shape, damages;

2, parts are many in addition for this clutch 20, the assembling trouble;

3, the keeper 101 corresponding precision requirement height of the positioning sleeve 21,22 of clutch 20 and body 10, assembling is complicated;

4, it is excessive that these helical rotor 25 axial plays are sowed discord the crack, and easily cause 252 engagements of end tooth wheel bad;

5, the luer engages with position of this helical rotor 25 and rotor 23, lubricating oil easily freezes, and lubricant effect is poor, and it is bad easily to cause transmission;

6, when rotor 23 during with helical rotor 25 high speed rotating, 21,22 of rotor 23 and positioning sleeves produce friction, fever, cause and can't run well.

The purpose of this utility model provides a kind of structure positive inversion set of driving of massage armchair preferably, make it part reduce, easy to assembly and transmission is more reliable.

Order of the present utility model is proposed such realization: the positive inversion set of the driving of massage armchair, and it comprises: body, drive shaft, kneading rotating shaft, beat and pinch rotating shaft and free son; To forming, the kneading rotating shaft is worn frame in body and be pivoted with helical gear and two ends and pass externally to body by two folders, and helical gear for sleeping inly meshes to helical gear with intrinsic; Beat rotating shaft and wear frame in body and be pivoted with worm gear, crouch in worm gear and the body to worm engaging; Free son is located between intrinsic helical gear and worm screw, axially is penetrated with polygonal hole, and two axial ends extends the end tooth wheel of annular distribution, and the end tooth wheel is corresponding with helical gear and worm screw end tooth wheel; Drive shaft be the polygon body of rod and with free sub-fit interlock, the two ends pivot is through at helical gear and worm screw, and is piercing in external; It is characterized in that: this tooth limit of swimming ionic end tooth form of gear tooth is provided with the parallel edges that parallels with the drive shaft centrage, it is the circular-arc parallel edges top end that extends to from tooth valley end in the limit in addition, the circular arc that formation has the slippage pushing and withstanding pushes away face and is monolateral being engaged and linked, and this free son end tooth-formation of gear of end in addition is symmetrical shape with it; The end tooth wheel of helical gear, worm screw, its profile of tooth also is set as corresponding parallel edges and circular arc pushes away face, and meshes again with the ionic end tooth wheel of trip is mutually opposed.

Above-mentioned design, mat are swum the end tooth of ionic end tooth wheel and helical gear, worm screw and are taken turns opposed engagement, are just reversing transmission, have reached the minimizing parts, make easy to assembly, and the structure that runs well effect preferably.

Be described further again below by accompanying drawing, embodiment.

The combination stereogram of the existing massage armchair drives structure of Fig. 1;

The clutch three-dimensional exploded view of the existing massage armchair drives structure of Fig. 2;

Fig. 3 this utility model D structure sketch map;

Fig. 4 of the present utility model when the alien meshes the master look sketch map;

Fig. 5 is of the present utility model to move sketch map from the alien.

Shown in Fig. 3,4: this utility model comprises: body 10, drive shaft 11, kneading rotating shaft 13, beat and pinch rotating shaft 15 and free son 30; To forming, kneading rotating shaft 13 is worn frame in body 10 in and be pivoted with helical gear 131 and two ends pass outside the body 10 to body 10 by two folders, and crouching in helical gear 131 and the body 10 meshed to helical gear 41; Beat rotating shaft 15 and wear frame in body 10 and be pivoted with worm gear 16, crouch in worm gear 16 and the body 10 to worm screw 51 engagements; Free son 30 is located in 51 of helical gear 41 in the body 10 and worm screws, axially is penetrated with polygonal hole 31, and two axial ends extends the end tooth wheel 32 of annular distribution, and end tooth wheel 32 and helical gear 41 and worm screw 51 end teeth are taken

turns

42,52 corresponding; Drive shaft 11 be the polygon body of rod and with free sub 30 fit interlocks, the two ends pivot is through at helical gear 41 and worm screw 51, and is piercing in outside the body 10; It is characterized in that: the tooth limit that the end tooth of this free son 30 is taken turns 32 profiles of tooth is provided with the parallel edges 321 that parallels with drive shaft 11 centrages, it is the circular-arc parallel edges 321 top ends that extend to from tooth valley end in the limit in addition, the circular arc that formation has the slippage pushing and withstanding pushes away face 322 and is monolateral being engaged and linked, and this free son 30 profile of tooth of the end tooth wheel 32 of end in addition is symmetrical shape with it; The

end tooth wheel

42,52 of helical gear 41, worm screw 51, its profile of tooth also is set as corresponding parallel edges 421,521 and circular arc pushes away face 422,522, and takes turns 32 mutually opposed engagements again with the end tooth of free son 30.

As Fig. 5, shown in 6: action of the present utility model is such: desire to make when beating rotating shaft 15 rotations, then drive shaft 11 is with motor M counter-rotating, so free sub 30 along with reverse, when its end tooth wheel 32 meshes with end tooth wheel 42, because parallel edges 321,421 transfer circular arc to pushes away face 322,422, two circular arcs push away face 322, at this moment 422 there is no engaged transmission, and helical gear 41 meshes because of the helical gear 131 with kneading rotating shaft 13, and kneading rotating shaft 13 is (figure does not show) that are connected with in kneading mechanism, this helical gear 41 is bearing the kneading starting load, therefore, when free son 30 reverses, when the circular arc that its circular arc pushes away face 322 pushing and withstanding helical gears 41 pushes away face 422, promptly can't produce interlock, and the spinning force of free son 30, push away face 322 by two circular arcs, 422 change axial thrust into, at this moment helical gear 41 is carried on as before having load to exist and does not rotate, even free sub 30 towards worm screw 51 direction slippages, and son 30 other the end face end teeth wheels 32 that obtain dissociating are taken turns 52 engagements with the end tooth of worm screw 51, at this moment the two

ends gear

32,52 parallel edges 321,521 interlocks that are meshed, promptly interlock is beaten rotating shaft 15 rotations.

When desiring to make kneading rotating shaft 13 to rotate, then motor M just changes, free son 30 rotations of drive shaft 11 forward interlocks, circular arc by free son 30 and worm screw 51 two

ends gears

32,52 pushes away face 321,521 mutual pushing and withstanding generation axial forces, free son 30 is engaged and linked with helical gear 41, can transmission kneading rotating shaft 13 rotations.

It one turns to the generation transmission by the

end tooth wheel

32,42,52 of free son 30, helical gear 41, worm screw 51 by upper explanation the utility model, another turns to the function that produces axial thrust, make the slip that must between helical gear 41 and worm screw 51, dissociate of free son 30, and only can one-directional rotation, reliable in action, synchro-meshing not taking place, can replace original clutch 20, has following advantage:

1, simple in structure, parts are few, make easily, and cost is low;

2, easy to assembly, technology requires to reduce, and relatively improves assembling efficient;

3, free son produces axial thrust reliable in action by circular arc face pushing tow, needn't worry the meeting slippage;

4, only need to push away face and be coated with thin layer lubricating oil in circular arc, needn't worry because of the ice knot can not transmission;

5, mutual abrasion condition improved does not cause heating, and it is smooth and easy to turn round, long service life.

Claims

1, the positive inversion set of the driving of massage armchair, it comprises: body, drive shaft, kneading rotating shaft, beat and pinch rotating shaft and free son; To forming, the kneading rotating shaft is worn frame in body and be pivoted with helical gear and two ends and pass externally to body by two folders, and helical gear for sleeping inly meshes to helical gear with intrinsic; Beat rotating shaft and wear frame in body and be pivoted with worm gear, crouch in worm gear and the body to worm engaging; Free son is located between intrinsic helical gear and worm screw, axially is penetrated with polygonal hole, and two axial ends extends the end tooth wheel of annular distribution, and the end tooth wheel is corresponding with helical gear and worm screw end tooth wheel; Drive shaft be the polygon body of rod and with free sub-fit interlock, the two ends pivot is through at helical gear and worm screw, and is piercing in external; It is characterized in that: this tooth limit of swimming ionic end tooth form of gear tooth is provided with the parallel edges that parallels with the drive shaft centrage, it is the circular-arc parallel edges top end that extends to from tooth valley end in the limit in addition, the circular arc that formation has the slippage pushing and withstanding pushes away face and is monolateral being engaged and linked, and this free son end tooth-formation of gear of end in addition is symmetrical shape with it; The end tooth wheel of helical gear, worm screw, its profile of tooth also is set as corresponding parallel edges and circular arc pushes away face, and meshes again with the ionic end tooth wheel of trip is mutually opposed.