CN101929511B

CN101929511B - Transmission device with differential function

Info

Publication number: CN101929511B
Application number: CN 200910150236
Authority: CN
Inventors: 王骏瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-22
Filing date: 2009-06-22
Publication date: 2013-05-08
Anticipated expiration: 2029-06-22
Also published as: CN101929511A

Abstract

The invention relates a transmission device with a differential function, which is used for driving two wheel shafts. The transmission device comprises a shaft sleeve which can be driven by a power source to rotate around an axial line and two unidirectional ratchets which are fixedly arranged at both sides of the shaft sleeve and are respectively fixedly connected with the wheel shafts to form linkage. With the rotation of the shaft sleeve, the unidirectional ratchets can drive the wheel shafts to synchronously rotate in the forward direction, and can permit one of the wheel shafts to idle in the forward direction in an asynchronous condition. Thus, based on the special design of the unidirectional ratchets, the invention enables the wheel shafts rotating in the same direction to rotate at different rotation speeds, thereby maintaining the steering stability.

Description

Transmission device with differential function

Technical field

The present invention relates to a kind of transmission device, particularly relate to a kind of for driving two wheels and producing the poor transmission device with differential function of speed.

Background technique

See also Fig. 1, take the transmission device 1 of general vehicle (not shown) as example, consist predominantly of a wheel shaft 11, be arranged on these wheel shaft 11 2 ends and with two wheels 12 of these wheel shaft 11 coaxial rotation, and with these wheel shaft 11 coaxial rotation and be used for a Passive part 13 of transferring power.Whereby, drive when this Passive part 13 is subjected to a power source, and when driving this wheel shaft 11 and rotating, just can make aforementioned wheel 12 synchronize rotation with this wheel shaft 11, reach the purpose that vehicle is advanced.

Only, work as Ackermann steer angle, can be because the path that inboard wheel 12 is walked be shorter, the path that outboard wheels 12 is walked is longer, cause left and right two wheels 12 must face the different problem of rotating speed in same time, therefore, if reluctantly two wheels 12 are arranged on same wheel shaft 11, certainly will will cause turns has some setbacks, and the problems such as easy overturning, tire wear are arranged.

So in order to improve aforementioned drawback, a kind of " differential mechanism " that can make wheel produce speed difference has been widely used in aforementioned transmission device, as Taiwan bulletin M312612 case, M277687 case, No. 549381 case etc.Only, the differential mechanism that uses on the market at present is all mainly to use bevel reduction gear set as the structure of differential, and not only structure, assembly are complicated, and assembling, maintenance the defective such as be difficult for, and dynamic loss is large, the high in cost of production defective.

This shows, the transmission device of above-mentioned existing general vehicle obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore how to found a kind of transmission device with differential function of new structure, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.

Summary of the invention

The object of the invention is to, overcome the defective that the transmission device of existing general vehicle exists, is to make it can simplified construction and assembly and a kind of transmission device with differential function of new structure, technical problem to be solved are provided, and is very suitable for practicality.

The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of transmission device with differential function that the present invention proposes, be used for driving two wheel shafts, wherein this transmission device comprises: an axle sleeve is driven by a power source and rotates centered by an axis; And two single direction ratchet, be installed in this axle sleeve two sides, and respectively with the affixed formation interlock of this wheel shaft, rotate with this axle sleeve and drive aforementioned wheel shaft synchronous forward and rotate, and allow wherein wheel shaft forward idle running under nonsynchronous situation.

The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.

Preferably, aforesaid transmission device with differential function, wherein this axle sleeve also has mutual docking and is installed with respectively first shell block and second shell block of this single direction ratchet.

Preferably, aforesaid transmission device with differential function is wherein planted this axle sleeve and is also had a Passive part that is installed between this first shell block and this second shell block, and this Passive part is used for transmitting the power that comes from aforementioned power source.

Preferably, aforesaid transmission device with differential function, wherein this axle sleeve also has a nut, and this first shell block has the section of being spirally connected that is nested with along this Axis Extension and for this Passive part, this second shell block has an axis hole that runs through and pass for this first shell block section of being spirally connected along this axis, and the section of being spirally connected of this nut and this first shell block screws togather and urgent this first, second shell block and this Passive part is fixed is integrated.

Preferably, aforesaid transmission device with differential function, but wherein this Passive part gear, belt pulley, gear teeth wheels are wherein a kind of.

Preferably, aforesaid transmission device with differential function, wherein this first, second shell block has respectively around this axis and defines a ring wall of a groove, and be formed on an internal thread segment of this ring wall one internal surface, aforementioned single direction ratchet is separately positioned in the groove of this first, second shell block, and has respectively an external thread section that is formed on an outer surface and screws togather with this internal thread segment around this axis.

Preferably, aforesaid transmission device with differential function, wherein aforementioned single direction ratchet have respectively with this axle sleeve form interlock an outer shroud, with affixed one of this wheel shaft in ring, an and ratchet group, aforementioned outer shroud has respectively a plurality of ratchet slots that are formed on an internal surface around this axis, and this ratchet group has a plurality of ratchets that are arranged on this interior ring one outer surface and engage with this ratchet slot.

Preferably, aforesaid transmission device with differential function, wherein this transmission device also includes the unit that reverses, this counter-rotating unit has and an inversion device of a wheel shaft keyed jointing and relative this single direction ratchet displacement wherein, and one group of control, this group control be used for to be dialled this inversion device of control and engage an interlock position that forms interlock with this axle sleeve, and displacement between a neutral of this axle sleeve of disengaging.

Preferably, aforesaid transmission device with differential function, wherein this axle sleeve has a ring rib around this axis forms at one end and vertical this axial direction in edge extends, and being formed on a plurality of breach of this ring rib, this inversion device has a plurality of latches that are formed on an inner face and are used for engaging with aforementioned breach.

Preferably, aforesaid transmission device with differential function, wherein this inversion device has an annular groove that is formed on an outer surface around this axis, this group control has reverse extension and with a gripping section of a fulcrum beat and one group of control section, this gripping section is held in the annular groove of this inversion device, and this group control section is used for this gripping section of interlock and dials this inversion device of control along this axial direction displacement.

The present invention compared with prior art has obvious advantage and beneficial effect.As known from the above, for achieving the above object, the invention provides a kind of transmission device with differential function, be used for driving two wheel shafts, comprise an axle sleeve, and two single direction ratchet.This axle sleeve is driven by a power source and rotates centered by an axis.Aforementioned single direction ratchet is installed in this axle sleeve two sides, and respectively with the affixed formation interlock of this wheel shaft, can rotate with this axle sleeve and drive aforementioned wheel shaft synchronous forward and rotate, and allow wherein wheel shaft forward idle running under nonsynchronous situation.

Effect of the present invention is with the particular design of two single direction ratchet, the wheel shaft of rotating in same direction can be rotated with different rotating speeds, and then reach the effect of simplified construction and assembly.

Advantage of the present invention:

1. the present invention need only be with the particular design of an axle sleeve 3 and two single direction ratchet 4, the wheel shaft 21 of rotating in same direction is rotated with different rotating speeds, stability when turning to except keeping, and structure and assembly very simplify, and is applicable to the different car types such as tricycle, four-wheel wagon, model car.

2. according to aforementioned, the present invention can simplified assembly, and not only assembling easily, do not take up space, and can significantly not reduce costs and the situation of kinetic equation loss, and can the room for promotion benefit.

And the present invention only need by this counter-rotating unit, just can make vehicle of the present invention is installed has the function of advancing and retreating, and then promote practicability of the present invention and effect.

In sum, the present invention is a significant progress in technology, and has obvious good effect, is really a new and innovative, progressive, practical new design.

Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.

Description of drawings

Fig. 1 is a front view, and general transmission device is described;

Fig. 2 is a front view, illustrates that the present invention one has a preferred embodiment of transmission device and two wheels of differential function;

Fig. 3 is an exploded perspective view of this preferred embodiment;

Fig. 4 is a combination stereogram of this preferred embodiment;

Fig. 5 is a sectional view of this preferred embodiment;

Fig. 6 is the sectional view along Fig. 5 straight line VI-VI direction;

Fig. 7 is the sectional view that in this preferred embodiment, inversion device and axle sleeve form interlock; And

Fig. 8 is the sectional view along Fig. 7 straight line VIII-VIII direction.

Embodiment

Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to the transmission device with differential function that foundation the present invention proposes, its embodiment, structure, feature and effect thereof are described in detail as follows.

See also Fig. 2, the preferred embodiment that the present invention has the transmission device of differential function is for driving two wheels 2.Aforementioned wheels 2 have respectively a wheel shaft 21, reach a wheel 22 with these wheel shaft 21 coaxial rotation.Consult Fig. 3, Fig. 4, and Fig. 5, this transmission device with differential function comprises an axle sleeve 3, two single direction ratchet 4, and the unit 5 that reverses.

This axle sleeve 3 has first shell block 31, second shell block 32, a Passive part 33, and a nut 34.This first shell block 31 have around an axis X and define a groove 310 a ring wall 311, be formed on an internal thread segment 312 of these ring wall 311 1 internal surfaces, around this axis X and a ring edge 313 that extends along vertical this axis X direction, be formed on a terrace edge 314 of this

ring edge

313 and 311 of this ring walls, reach around this axis X and by the be spirally connected section 315 of this ring edge 313 along this axis X direction extension.this second shell block 32 has around this axis X and defines a ring wall 321 of a groove 320, be formed on an internal thread segment 322 of these ring wall 321 1 internal surfaces, a ring edge 323 around vertical this axis X direction extension of this axis X and edge, be formed on a terrace edge 324 of 321 of this ring edge 323 and this ring walls, along the axis hole 325 that this axis X direction runs through and these the first shell block 31 sections of being spirally connected 315 of confession pass, be formed on around this axis the ring rib 326 that vertical this axis X direction of these ring wall 321 1 ends and edge is extended, and be formed on a plurality of breach 327 of this ring rib 326.This Passive part 33 is nested with in the section of being spirally connected 315 of this first shell block 31 and is limited in this first,

second shell block

31,32 ring edge 313,323.It is worth mentioning that, this Passive part 33 is used for transmitting and comes from the power of a power source, and can be that gear, belt pulley, gear teeth wheels are wherein a kind of.This nut 34 screws togather with the section of being spirally connected 315 of this first shell block 31, and urgent this first,

second shell block

31,32 and this Passive part 33 is fixed is integrated.

Aforementioned single direction ratchet 4 is separately positioned in this first,

second shell block

31,32 groove 310,320, and be resisted against respectively on this terrace edge 314,324, and have respectively encircle 42 in outer shroud 41 of mutual fit and one, with should in ring 42 2 ends screw togather and place restrictions on the screw 44 that ring 42 in this is set in two fixed plates 43 in this outer shroud 41, runs through ring 42 in this along this axis X, an and ratchet group 45.Aforementioned outer shroud 41 has respectively an external thread section 411 that is formed on an outer surface and screws togather with this first,

second shell block

31,32 internal thread segment 312,322 respectively around this axis X, and is formed on a plurality of ratchet slots 412 of an internal surface around this axis X.Aforementioned screw 44 is spirally connected with aforementioned wheel shaft 21 respectively.But this ratchet group 45 has and is arranged on two ratchets 451 that ring 42 1 outer surfaces in this and bullet engage with this ratchet slot 412 with taking off.

This counter-rotating unit 5 has and wheel shaft 21 keyed jointings wherein and a inversion device 51 that can relative these single direction ratchet 4 displacements, and one is dialled control 52.This inversion device 51 has a plurality of latches 511 that are formed on an inner face, and is formed on an annular groove 512 of an outer surface around this axis X.Aforementioned latch 511 can engage with the breach 327 of this second shell block 32.This group control 52 has reverse extension and with a gripping section 521 of a fulcrum beat and one group of control sections 522.This gripping section 521 is held in the annular groove 512 of this inversion device 51.This group control section 522 is used for 521 groups of these inversion devices 51 of control of this gripping section of interlock along this axial direction displacement, makes this inversion device 51 engage an interlock position that forms interlock with this second shell block 32, and displacement between a neutral of this second shell block 32 of disengaging.

see also Fig. 4, Fig. 5, and Fig. 6, when straight forward, first stir this inversion device 51 with this group control 52 and be positioned at the neutral that breaks away from this second shell block 32, then, with manpower or power source that electric power was produced, drive this Passive part 33 and drive this axle sleeve 3 forward rotation centered by this axis X, at this moment, the outer shroud 41 of aforementioned single direction ratchet 4 can be together with these axle sleeve 3 forward rotation, and by the snap-fit relationship of aforementioned ratchet slot 412 with aforementioned ratchet 451, drive and interiorly to encircle 42, with ring 42 wheel shafts that are spirally connected 21 in this, and rotate with inversion device 51 synchronous forward of these wheel shaft 21 keyed jointings.Whereby, this axle sleeve 3 is that synchronous forward is rotated with aforementioned single direction ratchet 4, aforementioned wheel shaft 21, this inversion device 51, and aforementioned wheel 22 is advanced with identical speed in same time, turns round with same wheel shaft as aforementioned wheel 22.

when aforementioned wheel 22 enters bend, can be because the path that inboard wheel 22 is walked be shorter, the path that outboard wheels 22 is walked is longer, cause a left side, right two wheels 22 produce the difference of rotating speed in same time, at this moment, although this axle sleeve 3 equally can be according to the aforementioned activities relation, drive aforementioned single direction ratchet 4, aforementioned wheel shaft 21 forward rotation, only, because the rotating speed of this axle sleeve 3 of wheel shaft 21 rotating ratios in the outside is fast, therefore, the wheel shaft 21 in the outside can drive and should accelerate to rotate by interior ring 42, make the ratchet slot 412 of aforementioned this outer shroud 41 of ratchet 451 slippages, and then in the interior acceleration idle running of this outer shroud 41, whereby, allow that aforementioned wheel shaft 21 has different rotating speeds from aforementioned wheel 22, and can turn smoothly.

see also Fig. 7, Fig. 8, when retreating when advancing, first oppositely stir this inversion device 51 with this group control 52, make this inversion device 51 follow relative these the second shell block 32 displacements of this wheel shaft 21, to engaging with aforementioned breach 327 with aforementioned latch and after being positioned at clamped position, with manpower or power source that electric power was produced, drive this Passive part 33 and drive this axle sleeve 3 backward rotation centered by this axis X, at this moment, because the outer shroud 41 of aforementioned single direction ratchet 4 is around 42 idle running of ring in this, therefore, engage the inversion device 51 that forms interlock with this second shell block 32, can be with synchronous these wheel shaft 21 backward rotation that drive of this axle sleeve 3, make aforementioned wheel 22 reach the function that retreats.

the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.

Claims

1. the transmission device with differential function, be used for driving two wheel shafts, it is characterized in that this transmission device comprises:

an axle sleeve, driven by a power source and rotate centered by an axis, and have mutual docking and be installed with respectively one first shell block and one second shell block of single direction ratchet, be installed in the Passive part between this first shell block and this second shell block, an and nut, this first shell block has the section of being spirally connected that is nested with along this Axis Extension and for this Passive part, this second shell block has an axis hole that runs through and supply this first shell block section of being spirally connected to pass along this axis, this Passive part is used for transmitting the power that comes from aforementioned power source, the section of being spirally connected of this nut and this first shell block screw togather and urgent this first, the second shell block and this Passive part is fixed is integrated, and

Two single direction ratchet, be installed in respectively a side of this first shell block and this second shell block, and respectively with the affixed formation interlock of this wheel shaft, rotate with this axle sleeve and drive aforementioned wheel shaft synchronous forward rotation, and allow wherein wheel shaft forward idle running under nonsynchronous situation.

2. the transmission device with differential function as claimed in claim 1 is characterized in that this Passive part can be that gear, belt pulley, gear teeth wheels are wherein a kind of.

3. the transmission device with differential function as claimed in claim 1, it is characterized in that this first, second shell block has respectively around this axis and defines a ring wall of a groove, and be formed on an internal thread segment of this ring wall one internal surface, aforementioned single direction ratchet is separately positioned in the groove of this first, second shell block, and has respectively an external thread section that is formed on an outer surface and screws togather with this internal thread segment around this axis.

4. the transmission device with differential function as claimed in claim 1, it is characterized in that aforementioned single direction ratchet have respectively with this axle sleeve form interlock an outer shroud, with affixed one of this wheel shaft in ring, an and ratchet group, aforementioned outer shroud has respectively a plurality of ratchet slots that are formed on an internal surface around this axis, and this ratchet group has a plurality of ratchets that are arranged on this interior ring one outer surface and engage with this ratchet slot.

5. the transmission device with differential function as claimed in claim 1, it is characterized in that this transmission device also includes the unit that reverses, this counter-rotating unit has and an inversion device of a wheel shaft keyed jointing and relative this single direction ratchet displacement wherein, and one group of control, this group control be used for to be dialled this inversion device of control and engage an interlock position that forms interlock with this axle sleeve, and displacement between a neutral of this axle sleeve of disengaging.

6. the transmission device with differential function as claimed in claim 5, it is characterized in that this axle sleeve has a ring rib around this axis forms at one end and vertical this axial direction in edge extends, and being formed on a plurality of breach of this ring rib, this inversion device has a plurality of latches that are formed on an inner face and are used for engaging with aforementioned breach.

7. the transmission device with differential function as claimed in claim 5, it is characterized in that this inversion device has an annular groove that is formed on an outer surface around this axis, this group control has reverse extension and with a gripping section of a fulcrum beat and one group of control section, this gripping section is held in the annular groove of this inversion device, and this group control section is used for this gripping section of interlock and dials this inversion device of control along this axial direction displacement.