CN101065198A - Method for producing transmission member with tooth provided with oil basin and transmission member with tooth produced by this production method - Google Patents
Method for producing transmission member with tooth provided with oil basin and transmission member with tooth produced by this production method Download PDFInfo
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- CN101065198A CN101065198A CN 200580040923 CN200580040923A CN101065198A CN 101065198 A CN101065198 A CN 101065198A CN 200580040923 CN200580040923 CN 200580040923 CN 200580040923 A CN200580040923 A CN 200580040923A CN 101065198 A CN101065198 A CN 101065198A
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Abstract
A method of producing a toothed transmission member having oil holders, not causing very large increase in production costs, suitable for mass production, and having increased lubricant retaining ability, and a toothed transmission member produced by the method. The method of producing a toothed transmission member with oil holders has a primitive recess forming process for forming primitive recesses (21), the origin of the oil holders, in the surface of a material for the toothed transmission member and has a tooth surface forming process for forming a toothed transmission member by processing the toothed transmission member so as to leave marks of the primitive recesses. The marks of the primitive recesses (21) left in the toothed transmission member formed by the tooth surface forming process function as the oil holders.
Description
Technical field
The present invention relates to a kind of be used to the make method of toothed power Transmission Part and the product made from this manufacture method with oil conservator.More particularly, the present invention relates to a kind of technology that forms oil conservator, this oil conservator is used for lubricant is offered the tooth surface that meshes with toothed counter pair power Transmission Part, and this oil conservator is formed by the recess of the similar pond shape (pond-like) that forms on the tooth surface of this toothed power Transmission Part or the part of similar groove shape.
Explanation in passing, in this manual, " lubricant " is not limited to the material such as the grease with the lubrication that is similar to lubricating oil of lubricating oil and common indication.This material storage is in this oil conservator.
Background technology
A kind of toothed power Transmission Part, this Transmission Part are suitable in gear, spline (spline), screw mandrel or the ball-screw, are the machine parts that is suitable for power is transferred to toothed counter pair power Transmission Part.In toothed power Transmission Part, big pressure of contact surface not only makes between the tooth surface and contacts, and makes generation slip relatively between them.Therefore, for the wearing and tearing that prevent tooth surface and the power loss between them, and in order to realize power transmission stably between them, it is necessary always having lubricating oil (or lubricant) on tooth surface (or mating surface) part.
As the method that lubricating oil is provided to tooth surface, it is known that several different methods is arranged.One of them is to form one or more oil conservators at tooth surface for a method, and oozes out lubricant naturally on this tooth surface from this oil conservator.Example is shown in patent documentation 1 to patent documentation 3.This lubricating method be create traditionally and its advantage be that its principle is simple, and maintenance intervals, for example the interval of supply of lubricant can prolong.But because very difficult in the processing with the groove on the complex-curved tooth surface, realization not can be used in the low-cost processing method of batch process.
Be formed on toothed power Transmission Part at oil conservator, such as on pinion, tooth bar and the leading screw (screw shaft) situation under, oil conservator for example is formed on the surface as involute (involute) tooth of this machine part of transmission mechanism or tooth thread.Processing at the groove on the tooth surface can be after the tooth cutting tool processing tooth that utilizes such as hob, by carrying out cutting, Laser Processing, discharge processing realization.But along with the quantity of groove increases, the groove processing except forming tooth becomes difficult more, and therefore, its processing can not realize efficiently.
Secondly, the transfer that is described below is as the example of the device of the toothed power Transmission Part of needs.
In transfer, telescopic shaft (telescopic shaft) is integrated into jackshaft or steering spindle, and but this telescopic shaft comprises being mounted to and can not rotate the male splined shaft and the female splined shaft that can slide relatively.This telescopic shaft is disclosed in patent documentation 8, patent documentation 9, patent documentation 10 and the patent documentation 11.
Figure 33 to Figure 35 illustrates conventional telescopic shaft.Figure 33 is the front view that the conventional transfer with telescopic shaft is shown.Figure 34 illustrates the male splined shaft that constitutes jackshaft shown in Figure 33, and wherein (1) illustrates the front view of this male splined shaft, and (2) illustrate along the cutaway view of the intercepting of the A-A line shown in (1).Figure 35 illustrates the female splined shaft that constitutes jackshaft shown in Figure 33, and wherein (1) illustrates the longitudinal section of this female splined shaft, and (2) illustrate the right view of the female splined shaft shown in (1).
Jackshaft 12 and steering spindle 13 as telescopic shaft are incorporated in the transfer shown in Figure 33.When universal (cardan) joint 17 was fixed in pinion shaft 16 with rack shaft 15 engagement of tooth sector 14, this jackshaft 12 temporarily shrank mate gear axle 16 then, thereby is fixed thereon.Therefore jackshaft 12 needs Telescopic.And, the axial displacement that this jackshaft 12 produces in the time of need having the absorption vehicle operating and the ability of vibration, and prevent that this displacement and vibration transmission are to steering wheel 18.Because the position that need move steering wheel 18 according to driver's physique and vehicle driving posture, steering spindle 13 need have the function of axial elongation and contraction.
Figure 34 illustrates the male splined shaft 121 that constitutes jackshaft 12.Figure 35 illustrates the female splined shaft 122 that constitutes jackshaft 12.The telescopic shaft that is made of male splined shaft 121 and female splined shaft 122 need reduce the resistance to sliding of generation when extending and shrink, so that stretch smoothly with very little power.Therefore, as described in the patent documentation 8 and shown in Figure 34 (2), the outer surface of the tooth surface of male splined shaft 121 applies with the very little resin 123 of resistance to sliding.Then, lubricant applies thereon.Thereafter this male splined shaft 121 is installed in wherein, thereby is assembled into telescopic shaft.
When steering vehicle by simultaneously it being applied torque, this telescopic shaft repetitiousness crustal extension.Therefore need constantly apply lubricant (or lubricating oil) to the contact portion between the tooth surface between male splined shaft and the female splined shaft.As a solution, as described in patent documentation 10, the tooth surface of male splined shaft has the double-layer structure of levels with resin-coating thereby formation.And the space that is communicated with the outside is formed on the resin bed, so that lubricant reservoir is in this space.The manufacturing process complexity but the shortcoming of this conventional components is, its manufacturing cost increases.
And, as described in patent documentation 11, exist a kind of free-sliding spline of coated with resins to be configured such that recess is excavated to extending on the circumferencial direction of the tooth surface of this internal spline, and form by the thickness that adjusting is coated in the resin-coating film on this recess corresponding to the oil conservator of this recess.But this method is to form recess on the tooth surface at internal spline after forming internal spline.Therefore be difficult to form the recess of constant depth along very uneven inner spline gear surface.Just, under the situation that recess is processed with machining, carry out intermittent cut.Therefore, on the tooth surface of this spline, produce burr.It is very time-consuming to remove burr.And reduction in the service life of machining tool.Therefore, the shortcoming of this method is that manufacturing cost increases.And under the situation that recess is processed with plastic working, the shape that centers on the splined section of this recess is worn.Therefore, this method has another shortcoming, and the dimensional accuracy that is exactly the spline tooth surface reduces.
Also have, have a kind of ability to strengthen the method that lubricant keeps capacity according to lubricant.But the viscosity of lubricant uprises, the resistance that stretches of the height when this causes assembling.Therefore, the problem of this method is that this assembling is difficult to realize.
Generally speaking, fluid lubrication is intended to reduce the friction of slidingsurface of the threaded portion of mechanical part, gears engaged part and leading screw, reduces its wearing and tearing by the thickness that keeps oil film, and the heat that dissipates and produce.By keep suitable oil film thickness operate machines and the situation of installing under, the wearing and tearing of slidingsurface can obviously reduce.Can prolong the life-span of machine and device.Along with such as the variation of the load and the machine conditions of speed and influence with lubricator, oil film thickness often changes.Therefore, to satisfy lubricating requirement premature by applying lubricant simply.
Particularly, in the gears engaged part of power transmission mechanism, the surface pressing of gear is very big.Therefore, the variation of gear surface pressure is to the very big influence that is formed with of oil film.As everyone knows, it is high more that gear surface pressure rises, and oil film thickness is more little.Therefore, when the load on being applied to tooth surface is very big, can not keep the fluid lubrication of expecting.When lubrication mechanism changes to mixed lubrication from fluid lubrication, produce bigger friction.Simultaneously, because the friction that the contact between gear teeth and the counter pair gear teeth produces increase, thereby the wearing and tearing of tooth surface obviously increase.
Preferably, be the wearing and tearing of the tooth that suppresses gear better, propose to help to guarantee this method of oil film thickness.Proposed to form the method for oil conservator, this method lubricating oil is remained on the tooth of gear of turbine of reducer of turbodrill (referring to, for example, JP-A-8-226526).
Even if when tooth surface temporarily lacks oil film, by supplying with the lubricant that is stored in the oil conservator to tooth surface, oil film can recover immediately.Therefore, the oil conservator in zone that is arranged on the gear teeth sliding-contact of the gear teeth of scroll bar and turbine can be used for stably forming oil film.
Patent documentation 1:JP-A-2004-155223
Patent documentation 2:JP-A-2003-207031
Patent documentation 3:JP-A-08-226536
Patent documentation 4:JP-A-2002-079349
Patent documentation 5:JP-A-11-010274
Patent documentation 6:JP-A-07-310807
Patent documentation 7:JP-A-07-308729
Patent documentation 8:JP-A-2003-054421
Patent documentation 9:JP-A-2004-324863
Patent documentation 10:JP-A-2003-013986
Patent documentation 11:JP-A-56-059030
Patent documentation 12:JP-A-8-226526 (the 4th page, Figure 16-5)
Summary of the invention
The problem that the present invention solves
The present invention is In view of the foregoing proposed.
The problem to be solved in the present invention provides a kind of method that is used to make the toothed power Transmission Part with oil conservator, this oil conservator keeps the ability of lubricant to be enhanced, this manufacture method is suitable for producing in batches and does not increase its a lot of manufacturing costs, and the invention provides the toothed power Transmission Part of this manufacture method manufacturing of a kind of usefulness.
The method of dealing with problems
Foregoing problems solves by following means.
According to first aspect present invention, a kind of manufacturing has the method for the toothed power Transmission Part of oil conservator, comprises the steps:
Form initial recess on the surface of toothed power Transmission Part workpiece, this recess forms the basis of this oil conservator;
By processing the tooth surface that toothed power Transmission Part workpiece forms toothed power Transmission Part, make the trace of this initial recess be left,
The trace of wherein staying this initial recess on this toothed power Transmission Part is as oil conservator.
According to a second aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a first aspect of the present invention, the step that forms this initial recess is included in the step that forms initial recess on the cylindrical surface of shaft-like workpiece, and
The step that forms tooth surface comprises that this shaft-like workpiece is pushed into the cold forging step in the forging die, and this forging die has the cross section of shape complementarity of the toothed power Transmission Part of its shape and expection.
According to a third aspect of the invention we, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a second aspect of the present invention, this initial recess comprises the helicla flute on the cylindrical surface that is formed on this shaft-like workpiece, so that form this oil conservator with the groove shape.
According to a forth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a second aspect of the present invention, this initial recess comprises a plurality of cannelures that are formed on this shaft-like workpiece cylindrical surface, so that form this oil conservator with the groove shape.
According to a fifth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a second aspect of the present invention, this initial recess is included in a plurality of vertical shape groove that forms along the longitudinal on the cylindrical surface of this shaft-like workpiece, so that form this oil conservator with the groove shape.
According to a sixth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a second aspect of the present invention, this the initial recess that is formed on this shaft-like workpiece cylindrical surface comprises the circular recess part, so that form this oil conservator of pond shape.
According to a seventh aspect of the invention, have the method for the toothed power Transmission Part of oil conservator, make gear, external splines and external screw thread with commutating tooth (spur tooth) or helical teeth with the manufacturing that proposes as second to the 6th aspect of the present invention,
Wherein each tooth surface does not have burr and is flat basically between adjacent oil conservator.
According to the tenth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a first aspect of the present invention, the step that forms initial recess is included in the step that forms the initial recess of circumference on the inner circumferential surface of hollow cylinder workpiece, and
The step that forms tooth surface comprises by carry out the step that plastic working forms internal spline on the inner circumferential surface of this hollow cylinder workpiece that forms initial recess office.
According to an eleventh aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a tenth aspect of the present invention, this initial recess comprises helicla flute.
According to a twelfth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a tenth aspect of the present invention, this initial recess comprises a plurality of cannelures.
According to a thirteenth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a tenth aspect of the present invention, this initial recess forms by roll extrusion.
According to a fourteenth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a eleventh aspect of the present invention, this helicla flute forms by roll extrusion.
According to a fifteenth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a twelveth aspect of the present invention, these a plurality of cannelures form by roll extrusion.
According to a sixteenth aspect of the invention, the method that has the toothed power Transmission Part of oil conservator with the manufacturing that proposes as one of the tenth to the 15 aspect of the present invention is made female splined shaft, and wherein the tooth surface of this female splined shaft does not have burr and is flat basically between adjacent oil conservator.
According to a seventeenth aspect of the invention, a kind of transfer has steering spindle or jackshaft,
Wherein this steering spindle or jackshaft comprise with as the manufacturing that proposes of one of the tenth to the 15 aspect of the present invention have the female splined shaft that the method for the toothed power Transmission Part of oil conservator is made.
According to an eighteenth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a first aspect of the present invention, this initial recess comprises helicla flute or straight trough, and
The step that forms tooth surface comprises the step that forms tooth, makes the bottom of this helicla flute or this straight trough stay in the zone that comprises this helicla flute or this straight trough on this toothed power Transmission Part workpiece.
This helicla flute cuts on this toothed power Transmission Part workpiece with turning process.By utilizing the main leading screw on the lathe and using the cutting edge on it is circular lathe tool, and this cutting can accurately be carried out.And, preferred according to a twentieth aspect of the invention, adopt plastic working to form tooth, for example gear teeth or spline tooth.For example, by the roll extrusion or the profile roll that utilize the rack-and-pinion cutter this gear teeth is processed.In the formation of this gear teeth that utilizes roll extrusion, the bottom of teeth groove is left.At this moment, the bottom of this groove that stays is as the oil conservator that helps fluid lubrication.
According to this oil conservator formation method, owing on toothed power Transmission Part workpiece, carry out helicla flute cutting, when forming this tooth surface, can form many oil conservators effectively and do not need to slot.
According to a nineteenth aspect of the invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a first aspect of the present invention, this initial recess comprises helicla flute or straight trough, and
The step that forms tooth surface comprises and forms screw thread or thread spindle, makes the bottom of this helicla flute or straight trough stay in the zone that comprises this helicla flute or straight trough on this toothed power Transmission Part workpiece.
This helicla flute is cut in the turning step on this toothed power Transmission Part workpiece.By utilizing the main leading screw on the lathe and using the cutting edge on it is circular lathe tool, and this cutting can accurately be carried out.And, preferred according to a twenty-first aspect of the invention, adopt plastic working on this toothed power Transmission Part workpiece, to form screw thread or thread spindle.This screw thread or thread spindle utilize a pair of round mould (round dies) processing.In this this screw thread or the shaping of thread spindle by roll extrusion, the bottom of thread groove is left.At this moment, the bottom of this groove that stays is as the oil conservator that helps fluid lubrication.
According to this oil conservator formation method, owing on the thread spindle workpiece, carry out helicla flute cutting, when forming this screw thread or thread groove, can form many oil conservators effectively and do not need to slot.
According to the 22 to 25 aspect of the present invention, have in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a first aspect of the present invention, this toothed power Transmission Part comprises pinion,
The step that forms this initial recess is included in and forms the spiral fluted step on this pinion workpiece, and
The step of formation tooth surface comprises the step by plastic working formative gear tooth, makes the bottom of this groove stay comprising in this spiral fluted zone on the pinion workpiece,
And wherein the method for this manufacturing with toothed power Transmission Part of oil conservator also comprises the step of finishing the shaping of this toothed power Transmission Part with machining.And the pinion that provides the method for the toothed power Transmission Part that this manufacturing of a kind of usefulness has oil conservator to make makes the tooth surface of this pinion not have burr, and is flat basically between adjacent oil conservator.
And, according to the 26 to 20 eight aspect of the present invention, having in the method for toothed power Transmission Part of oil conservator in the manufacturing that proposes as a first aspect of the present invention, this toothed power Transmission Part comprises tooth bar,
The step that forms this initial recess is included in and forms the spiral fluted step on this tooth bar workpiece, and
The step of formation tooth surface comprises the step by plastic working formative gear tooth, makes the bottom of this groove stay comprising in this spiral fluted zone on this tooth bar workpiece,
And wherein the method for this manufacturing with toothed power Transmission Part of oil conservator also comprises the step of finishing the shaping of this toothed power Transmission Part with machining.And the tooth bar that provides the method for the toothed power Transmission Part that this manufacturing of a kind of usefulness has oil conservator to make makes the tooth surface of this tooth bar not have burr, and is flat basically between adjacent oil conservator.
According to the twenty-ninth aspect, a kind of transfer comprises the gear assembly with intermeshing pinion and tooth bar, and wherein this gear assembly has pinion that proposes as the 23 aspect of the present invention and the tooth bar that proposes as the 27 aspect of the present invention.
Advantage of the present invention
As what understood from aforesaid structure, manufacturing method according to the invention can realize having batch the producing of toothed power Transmission Part of the oil conservator that its lubricant hold facility strengthens, and not increase too many manufacturing cost, is difficult to so far realize.
And, do not produce burr on the flank of tooth between the adjacent oil conservator of the toothed power Transmission Part of manufacturing method according to the invention manufacturing.Therefore do not need deburring.
Description of drawings
Fig. 1 is the partial sectional view that can realize the major part of forging equipment of the present invention.
Fig. 2 is the perspective view that the shape of the workpiece W among first embodiment is shown.
Fig. 3 illustrates the explanatory that comprises according to the part section of the axle of the workpiece W of first embodiment, and wherein (1) illustrates and carries out the workpiece that initial recess forms step, and (2) illustrate the workpiece that carries out the cold forging step.
Fig. 4 is the photo that workpiece W is shown, and wherein forms the helicla flute according to first embodiment.
Fig. 5 illustrates the photo that has carried out the gear of cold forging step according to first embodiment.
Fig. 6 is the perspective view that the shape of the workpiece W among second embodiment is shown.
Fig. 7 is the perspective view that the shape of the workpiece W among the 3rd embodiment is shown.
Fig. 8 is the perspective view that the shape of the workpiece W among the 4th embodiment is shown.
Fig. 9 is the perspective view that the shape of the workpiece W among the 5th embodiment is shown.
Figure 10 illustrates the female splined shaft that manufacturing method according to the invention is made, and wherein (1) is the longitudinal section of this female splined shaft, and (2) are the right side views that section shown in (1) is shown.
Figure 11 illustrates the tooth surface of the female splined shaft shown in Figure 10, wherein (1) is the perspective view of the amplification of this tooth surface, (2) be formed in the enlarged perspective of the oil conservator on this tooth surface, and (3) are formed in the cutaway view of the amplification of the oil conservator on this tooth surface.
Figure 12 illustrates the perspective view of the amplification of the tooth surface of the female splined shaft of manufacture method manufacturing in accordance with another embodiment of the present invention.
Figure 13 is the explanatory that the manufacture process of female splined shaft according to the present invention is shown.
Figure 14 illustrates the turning process according to the inventive method, and wherein (a) is the front view that wherein forms spiral fluted pinion workpiece, (b) is that this spiral fluted detailed view is shown.
Figure 15 illustrates the plastic processing according to the inventive method, and wherein (a) is the front view of the pinion workpiece of wherein formative gear tooth, and (b) is the transverse cross-sectional view that this gear teeth is shown.
Figure 16 illustrates the machine finishing process according to the inventive method, and is the front view of pinion workpiece, and wherein shaft portion is finished.
Figure 17 illustrates the pinion with method of the present invention processing, and wherein (a) is the front view of amplification that the major part of this pinion is shown, and (b) is the detailed view of oil conservator.
Figure 18 illustrates the plastic processing according to the inventive method, and wherein (a) is the front view of the pinion workpiece of wherein formative gear tooth, and (b) is the transverse cross-sectional view that gear teeth is shown.
Figure 19 is the profile of tooth figure according to the amplification of the gear teeth of the pinion of the inventive method.
Figure 20 is the perspective view of mould therefor in the method according to the invention.
Figure 21 is the amplification front elevation with the major part of the pinion of method processing of the present invention.
Figure 22 illustrates the plastic processing according to the inventive method, and wherein (a) is the front view of the pinion workpiece of wherein formative gear tooth, and (b) is the transverse cross-sectional view that gear teeth is shown.
Figure 23 is the amplification front elevation that the major part of the pinion of processing according to the inventive method is shown.
Figure 24 illustrates the turning processing of the method according to this invention, and is the perspective view that helicla flute forms thread spindle thereon.
Figure 25 illustrates the plastic processing according to the inventive method, and (a) is the perspective view that illustrates owing to the molded state of roll extrusion.
Figure 26 illustrates the plastic processing according to the inventive method, and is the detailed view of the oil conservator that forms in screw thread.
Figure 27 is the view that illustrates with the amplification of the major part of the thread spindle of the method according to this invention processing.
Figure 28 illustrates the turning processing of the method according to this invention, and is the front view of processing spiral fluted tooth bar workpiece thereon.
Figure 29 illustrates the punch process process according to the inventive method, and the conceptual scheme of the formation state of gear teeth is shown.
Figure 30 illustrates with method racks processed of the present invention, and wherein (a) is the perspective view of the tooth bar workpiece of wherein formative gear tooth, and (b) is the detailed view of this gear teeth.
Figure 31 illustrates the turning processing according to the inventive method, and is the perspective view that wherein forms the tooth bar workpiece of straight trough.
Figure 32 illustrates the cutaway view that is incorporated in according to the gear assembly in the transfer of the present invention.
Figure 33 is the front view with conventional transfer of telescopic shaft.
Figure 34 illustrates the male splined shaft that constitutes jackshaft shown in Figure 33, and wherein (1) is the front view of this male splined shaft, and (2) are the profiles along the A-A line intercepting of figure (1).
Figure 35 illustrates the female splined shaft that constitutes jackshaft shown in Figure 33, and wherein (1) is the longitudinal section of this female splined shaft, and (2) are the right side views of section shown in (1).
Figure 36 is the explanatory that the conventional manufacturing process of the female splined shaft shown in Figure 35 is shown.
The explanation of Reference numeral and symbol
10 forging dies
11 holes
111 cylindrical introduction parts
112 profile of tooth complementary portions
113 leaders
21,25 helicla flutes
23 cannelures
24 cannelures
26 recesses
The W workpiece
12 jackshafts
121 male splined shafts
122 female splined shafts
123 resins
124 inner circumferential surfaces
125 external splines
13 steering spindles
14 tooth sectors
15 rack shafts
16 pinion shafts
17 universal joints
18 deflecting rollers
3 female splined shafts
31 inner circumferential surfaces
32 circumferential grooves
33 inner circumferential surfaces
34 internal splines
35 oil conservators
W1 hollow cylinder workpiece
The W2 intermediate piece
P, P1 pitch
B, B1 groove width
D, D1 groove depth
W3 pinion workpiece
302,314,319 helicla flutes
303,322 gear teeth
304,311,312 pinions
305,316,324 oil conservators
W4 thread spindle workpiece
315 screw threads
317 thread spindles
W5 tooth bar workpiece
323 tooth bars
The specific embodiment
Before describing the following examples, will be described below the equipment that is used for making toothed power Transmission Part by die forging.This equipment is not special installation.The forging equipment of describing to the patent documentation 7 at patent documentation 4 can be used as this equipment.
Fig. 1 is the partial sectional view of the major part of this forging equipment.Hole 11 is formed on the core of forging die 10.Profile of tooth complementary portion 112 is arranged on the following of this hole and has shape with the profile complementation of the toothed power Transmission Part of target.Cylindrical introducing part 111 be arranged on this profile of tooth complementary portion 112 above.And workpiece W introduces in this hole 11.Conical leader 113 is formed on the border between this cylindrical leader 111 and this profile of tooth complementary portion 112.
When processing work W, this workpiece W is inserted this cylindrical leader 111 from the top.Utilize the mold (not shown) to push away this workpiece W downwards.Then, by standing plastic deformation simultaneously, the material of this workpiece W moves through this leader 113 to profile of tooth complementary portion 112.When workpiece W was forced into the precalculated position, the reduction campaign of mold stopped.Therefore, the distortion of workpiece W can be transferred to the shape of leader 113 and profile of tooth complementary portion 112 on the workpiece W.
Thereafter, mold is upwards drawn.And workpiece W is upwards clashed into from following by push rod (knockout pin) (not shown).Like this, the toothed power Transmission Part that machines is removed.Therefore, can make and not only have (directly) tooth that extends along axis but also have the toothed power Transmission Part of helical teeth as shown in Figure 1.
This processing is finished as cold working, and this tooth surface is enough smooth.Therefore, the workpiece of finishing can be used as toothed power Transmission Part, for example, and the gear of the common purpose that is used to want.And, carry out such as grinding, be unnecessary with the fine finishining that removes deburring etc.
According to the present invention, as described in the explanation of each embodiment, on workpiece W, carry out preliminary treatment processing (initial recess forming step).By it is carried out machining in advance, oil conservator is formed on the tooth surface of finished product.
First embodiment
Fig. 2 is the perspective view that the shape of used workpiece W among first embodiment is shown.Helicla flute as small initial recess is formed on the cylindrical surface of workpiece W, and this small initial recess is the basis of oil conservator.Under the situation of first embodiment, this initial recess forms step and can only finish by the very little helicla flute in interval that lathes on cylindrical surface.
Wherein form this workpiece of spiral fluted W and be pushed in the forging die 10, this forging die has the cross section of the shape complementarity of its shape and the toothed power Transmission Part of target, as shown in Figure 1.This step is the cold forging step.The spiral fluted number can be one or more.
Fig. 3 is the explanatory that the part section of the axle that comprises workpiece W is shown, and wherein (1) illustrates the workpiece that carries out initial recess forming step, and (2) illustrate the workpiece that carries out the cold forging step.
Shown in Fig. 3 (1), the interval of helicla flute 21 of just having carried out initial recess forming step is very close.But, after workpiece W carries out the cold forging step, this helicla flute, the interval of helicla flute 21 and width increase.And the degree of depth of helicla flute 21 reduces.Linear segment is formed between this helicla flute 21 then.This linear segment forms the profile of extending along the surface of this forging die 10.Use microscopic examination, this linear segment forms this toothed power Transmission Part, for example, and the profile of gear.Use microscopic examination, initial helicla flute 21 stays and is very shallow groove shape trace.Therefore, this trace is as oil conservator.The trace of this helicla flute 21 (oil conservator) not only appears on the tooth surface, and appears at tooth bottom and tooth top part.But this can not cause any special shortcoming.
Fig. 4 illustrates the photo that wherein forms spiral fluted workpiece W.Fig. 5 illustrates the photo that carries out the gear of cold forging step.Seen in from figure shown in Figure 5, can see that flagpole pattern not only appears on the tooth surface of this gear parts, and appear on top, tooth bottom and its conical portion of this tooth.This is because linear segment and shallow slot shape trace (just, oil conservator) alternately occur, and makes this linear segment and shallow groove shape trace look like striped.Though curved portion is formed on this flagpole pattern, this be since when forging the flowing velocity of material along with the result of change in location.
Second embodiment
Fig. 6 is the perspective view that the shape of the workpiece W among second embodiment is shown.Form many cannelures 23 as initial recess on the cylindrical surface of workpiece W, this initial recess is the basis of oil conservator.Except the groove annular that forms, this second embodiment is similar to first embodiment.
The 3rd embodiment
Fig. 7 is the perspective view that the shape of the workpiece W among the 3rd embodiment is shown.Form many vertical shape grooves along the longitudinal as initial meticulous recess on the cylindrical surface of workpiece W, this initial recess is the basis of oil conservator.This cannelure 24 can form by cutting with ring-type cutting teeth or former, or forms with toothed mould roll extrusion.Except the groove that forms is the cannelure, the 3rd embodiment is similar to first embodiment.
The 4th embodiment
Fig. 8 is the perspective view that the shape of the workpiece W among the 4th embodiment is shown.In this embodiment, each helicla flute 25 with king bolt lift angle (lead angle) forms initial recess, and makes mutual the intersection.Except cutting, the annular knurl method also can be used for this initial recess of processing.
The 5th embodiment
Fig. 9 is the perspective view that the shape of the workpiece W among the 5th embodiment is shown.Be different from aforementioned embodiment, on cylindrical surface, form many annular recesses parts 26 as initial recess with groove.This recess can the formation rule figure.Alternatively, for example by sand-blast, this recess can form randomly, as shown in Figure 9.In this case, oil conservator forms discontinuous pond shape dispersal point
Figure 10 illustrates the female splined shaft made from manufacturing method according to the invention, and wherein (1) is the longitudinal section of this female splined shaft, and (2) are the right side views that section shown in (1) is shown.Figure 11 illustrates the tooth surface of the female splined shaft shown in Figure 10, and wherein (1) is the perspective view that this tooth surface amplifies, and (2) are formed in the enlarged perspective of the oil conservator on this tooth surface, and (3) are formed in the cutaway view of the amplification of oil conservator on this tooth surface.Figure 12 is the perspective view of amplification that the tooth surface of the female splined shaft made from according to another embodiment of the invention manufacture method is shown.Figure 13 is the explanatory that the process of female splined shaft constructed in accordance is shown.Figure 36 is the explanatory that the conventional manufacturing process of female splined shaft shown in Figure 35 is shown.
As shown in figure 36, this conventional female splined shaft forms with following method.That is, on the hollow cylinder workpiece W shown in (1), carry out chemical conversion and apply, thereby prevent that plastic working mould and workpiece from being burnt.Thereafter, the diameter utilization of part that forms this workpiece W1 of female splined shaft therein reduces on the whole length of the mould shown in (2) in this part.Then, female splined shaft 125 is formed in the inner circumferential surface 124, and its diameter reduces with the mould shown in (3).
As shown in figure 13, internal spline according to the present invention forms with following method.That is, on the hollow cylinder workpiece W1 shown in (1), carry out chemical conversion and apply, thereby prevent that plastic working mould and workpiece from being burnt.Thereafter, as shown in (2), a plurality of circumferential grooves 32 are formed on the inner circumferential surface 31 of this hollow cylinder workpiece W1, thereby form intermediate piece W2.The method that forms circumferential groove 32 is used to form a plurality of cannelures, and is used to form single and a plurality of helicla flutes.This circumferential groove 32 can be formed on the axial length L of the part that wherein forms this internal spline at least.
Because the inner circumferential surface 31 of this hollow cylinder workpiece W1 is columniform, circumferential groove 32 can be by using the necking tool turning processing soon that is connected on the lathe saddle.Therefore, equipment cost is low.And, the increase of manufacturing cost can be suppressed at minimum.Alternatively, this circumferential groove 32 can for example be connected in the rolled tap turning efficiently processing on the lathe saddle by using rolling tool.
As (3) as shown in, by utilize the cold forging of mould, at the axial length of this part reduce wherein form the diameter of this workpiece W1 of internal spline thereafter.At last, this internal spline 34 is formed on this inner circumferential surface 33, and its diameter is by using the mould shown in (4) to reduce with cold forging.Therefore make female splined shaft 3.
Figure 10 illustrates the female splined shaft of making in this way 34.Figure 11 illustrates the tooth surface of this female splined shaft shown in Figure 10, wherein (1) is that cannelure forms after the circumferential groove 32, internal spline 34 forms the perspective view of the tooth surface amplification of female splined shaft 3 thereon, (2) be formed in the enlarged perspective of the oil conservator on this tooth surface, and (3) are formed in the cutaway view of the amplification of oil conservator on this tooth surface.Figure 12 illustrates helicla flute to form after the circumferential groove 32, the perspective view of the amplification of the tooth surface of internal spline 34 formation female splined shaft 3 thereon.
Shown in Figure 11 and 12, even if after forming internal spline 34 by mould, the circumferential groove 32 that is formed on the intermediate piece W2 is left as trace, makes the width B of this groove and the depth D of groove reduce.Therefore, this cannelure 32 is as the oil conservator 35 of storage lubricating oil.Therefore, when these female splined shaft 3 assemblings telescopic shaft thereon was correlated with slide, lubricating oil was provided to the tooth surface of this spline from oil conservator 35, thereby guarantees lubricating ability at every turn.
According to the lead angle θ that the diameter and the number of teeth of internal spline are suitably selected the spiral oil conservator 35 shown in Figure 12, lubricating oil is supplied with the tooth surface of this spline effectively when carrying out slide with convenient telescopic shaft.In order in oil conservator 35, to keep lubricating oil effectively and when telescopic shaft carries out slide, effectively lubricating oil to be supplied with tooth surface from oil conservator 35, preferably, consider the possibility of processing, the pitch P of oil conservator 35, groove width B and groove depth D are arranged to satisfy following mathematic(al) representation:
0.5mm＜P＜5mm
0.01mm＜B＜2.0mm
0.001＜D＜0.5mm
For the aforementioned numerical value of the pitch P, groove width B and the groove depth D that obtain oil conservator 35, pitch P, groove width B1 and groove depth D1 that suggestion will be formed on the circumferential groove 32 on the inner circumferential surface 31 of this intermediate piece W2 are arranged to satisfy the expression formula of this following this intermediate piece W2 in this stage.
0.5mm＜P1＜5mm
0.1mm＜B1＜4.0mm
0.1＜D1＜2.0mm
Incidentally, having the external splines of oil conservator can be constructed in accordance and can unite use with common internal spline.
Below with reference to accompanying drawing different embodiments of the invention are described.The pinion that this toothed power Transmission Part is a rack-and-pinion formula transfer.At first, the pinion workpiece is processed into the round bar with predetermined diameter with turning.Thereafter, shown in Figure 14 (a), bite acts on pinion workpiece W3 to process spiral oil conservator 2.By lead angle being remained on little value, cut this helicla flute 302 thick and fast.The cross section of this groove 2 is semicircle (seeing Figure 14 (b)) basically.
Thereafter, as Figure 15 (a) with (b), gear teeth 303 is by carrying out plastic working, for example roll extrusion and forming on pinion workpiece W3.The profile of this gear teeth 303 is involute teeths.Under the situation of this processing, the bottom of the helicla flute 302 that intersects along tooth trace direction and tooth surface is left.Part outside the bottom of this groove 2 forms smooth surface by plastic working.
Thereafter, as shown in figure 16, the shaft portion outside the gear teeth 303 is finish-machined to predetermined size and is done in the turning step.Pinion 304 shown in Figure 17 (a) can obtain by carrying out aforesaid step.The bottom of helicla flute 302 of tooth surface of staying this gear teeth 303 is as helping the oil conservator 305 of fluid lubrication, shown in Figure 17 (b).
Therefore,, in the formative gear tooth, can form many oil conservators effectively, and need not groove processing by on the pinion workpiece, cutting helicla flute.
Incidentally, the method that is used for formative gear tooth on pinion is not limited to roll extrusion.As long as can stay oil conservator, can adopt any plastic working, for example flatten, push, draw, precision forging and punch process.Similarly, among each embodiment below, can adopt, push, draw such as roll extrusion, pressing, any plastic working of precision forging and punch process.
Different embodiments of the invention are described below.The pinion that this toothed power Transmission Part is a rack-and-pinion formula transfer.At first, the pinion workpiece is processed into the round bar with predetermined diameter with turning.Thereafter, shown in Figure 14 (a), bite acts on this pinion workpiece W3.Then, groove 2 is processed to similar spiral.Thereafter, as shown in figure 18, gear teeth 6 forms by this pinion workpiece W3 is carried out plastic working.The profile of this gear teeth 6 is polygonal involute teeths.As shown in figure 19, form polygonal involute teeth by connecting five limit 7a, 7b, 7c, 7d and 7e at a certain angle, this angle is to form according to the tangent line of reference involute.
The formation of this polygonal involute is by utilizing mould shown in Figure 20 8 to carry out.The cutting tip 9 of this mould 8 has five limit 10a, 10b, 10c, 10d and 10e corresponding to this polygonal involute teeth.When pinion workpiece W3 is placed in the mould 8, can form this polygonal involute teeth.Under the situation of this processing, the bottom of this helicla flute 302 that intersects along trace direction and this tooth surface is left.Part outside the bottom of this groove 2 forms flat smooth surface by plastic working.
Thereafter, this shaft portion is refined to predetermined size in the turning step.Pinion with polygonal involute teeth 311 shown in Figure 21 can form by carrying out aforesaid step.The bottom of helicla flute 302 of tooth surface of staying this gear teeth 6 is as helping the oil conservator 305 of fluid lubrication.
Different embodiments of the invention are described below.The pinion that this toothed power Transmission Part is a rack-and-pinion formula transfer.At first, the pinion workpiece is processed into the round bar with predetermined diameter by turning.Thereafter, as shown in figure 22, by plastic working, gear teeth 6 is formed on this pinion workpiece W3.The profile of this gear teeth 6 be with previous embodiment in the identical polygonal involute teeth of gear teeth that adopted.This gear teeth 6 forms by mould 8 (seeing Figure 20).Thereafter, this shaft portion is refined to predetermined size in the turning step.Pinion 312 shown in Figure 23 can obtain by carrying out abovementioned steps.
Incidentally, on the pinion workpiece W3 in this embodiment, there is not helicla flute processed.Therefore, there is not oil conservator to be formed on this gear teeth 6.But the lubrication mechanism that is used to form oil film can be configured by the processing oil conservator, and this will illustrate below, for example, with the tooth bar of these pinion 312 combinations on.
Different embodiments of the invention are described below.The thread spindle that this toothed power Transmission Part is electric leaning device or telescoping mechanism.At first, the thread spindle workpiece is processed into the round bar with predetermined diameter by turning.Thereafter, as shown in figure 24, bite acts on the outer surface of this thread spindle workpiece W4.Then, helicla flute 314 is processed to similar spiral.By lead angle being remained on little value, cut this helicla flute 314 thick and fast.The cross section of this groove is semicircle basically.
As shown in figure 25, in roll extrusion step, utilize a pair of round mould D on thread spindle workpiece W4 form screw thread thereafter.As shown in figure 26, screw thread 315 forms by roll extrusion.When finishing roll extrusion, the interval between the helicla flute 314 increases.Simultaneously, the degree of depth of helicla flute 314 reduces.The bottom of this groove 314 is as the oil conservator that helps fluid lubrication.Thread spindle 317 shown in Figure 27 can obtain by carrying out abovementioned steps.
Therefore, according to this embodiment, on the thread spindle workpiece, cut helicla flute.Therefore, in the formative gear tooth, can form oil conservator effectively, not need to carry out groove processing.
Below with reference to accompanying drawing different embodiments of the invention are described.The pinion rack that this toothed power Transmission Part is a rack and pinion formula transfer.At first, the tooth bar workpiece is processed into the round bar with predetermined diameter by turning.Thereafter, as shown in figure 28, bite acts on tooth bar workpiece W5 with processing spiral slot 19.By lead angle being remained on little value, cut this helicla flute 319 thick and fast.Thereafter, in pressurization steps, as shown in figure 29, this tooth bar workpiece W5 is placed between the mould 20 and 21 that is connected in hydraulic press.Then, pressure head (ram) is started, and therefore oil pressure is acted on this mould 20 and 21.Therefore, the formative gear tooth 322.Under this processing situation, the bottom of the helicla flute 319 that intersects along the surface of trace direction and this gear teeth 322 is left.Part outside the bottom of this helicla flute 319 forms flat and smooth surface by plastic working.
Thereafter, the shaft portion except that gear teeth is finished by machining.Tooth bar 323 shown in Figure 30 (a) and 30 (b) can obtain by carrying out abovementioned steps.The bottom of helicla flute 319 of tooth surface of staying this gear teeth 322 is as helping the oil conservator 324 of fluid lubrication.
Therefore, by cutting helicla flute or straight trough on the tooth bar workpiece, in the formative gear tooth, can form many oil conservators effectively, and need not groove processing.
Incidentally, can revise this embodiment, make in the turning step along the direction cutting slot 25 that intersects with this trace direction, as shown in figure 31, and form oil conservator along the direction that intersects with this tooth trace direction, rather than form oil conservator 324 along the direction of the tooth trace of the gear teeth 322 of this tooth bar.
And the machine that is used to form gear teeth is not limited to oil pressure hydraulic press (oil hydraulicpress).Therefore, can use any forcing press such as crankshaft press.
Preferably, become to integrate with gear assembly in the transfer with the pinion of method manufacturing of the present invention and rack configurations.Shown in figure 32, gear assembly comprises the pinion 31 that is connected in the steering spindle (not shown) by the joint (not shown), and comprise tooth bar 332, its center line that is arranged so that this pinion and this tooth bar intersects each other, and its gear teeth is meshed with the gear teeth of this mating member pinion 331.
Be applied to the gear assembly 330 of manufacturing such as the lubricant of grease, be used for fluid lubrication.In the oil conservator that this lubricant reservoir that applies forms on the whole tooth surface of this gear teeth 334 and 336.A large amount of lubricants makes gear assembly 330 can stably keep fluid lubrication for a long time.Therefore, can reduce the wearing and tearing of the gear teeth of transfer significantly.
In aforementioned any embodiment, shallow recess is formed on the tooth surface of toothed power Transmission Part, and as oil conservator.Lubricating oil scatters from oil conservator.Then, this tooth surface is by oil lubrication.And, because comprising plasticity, processing flows, the oil conservator of this formation is provided with randomly.But the randomness of oil conservator position can not have problems.Also have, can be with the combination of disclosed aforementioned techniques in this embodiment specification.
And the pinion of power transmission unit, turbine gear etc. is assembled into the place that is difficult to realize to its supplying lubricating oil in periodic maintenance.Therefore, it is effective especially forming oil conservator at tooth surface.In making this toothed power Transmission Part, method of the present invention can be used effectively.And method of the present invention not only can be used to be manufactured on the gear described in the foregoing description, and can be used in manufacturing other general toothed power Transmission Part with oil conservator, for example very big external screw threads of external splines and lift angle.
Though the present invention is described in detail, for a person skilled in the art, obviously, under the situation that does not break away from the present invention's spirit essence and scope, can carry out variations and modifications with reference to specific embodiment.
The Japanese patent application No. No.2005-329232 that the Japanese patent application No. No.2005-017935 that the Japanese patent application No. No.2004-345035 that the application submitted to based on November 29th, 2004, on January 26th, 2005 submit to and on November 14th, 2005 submit to.Their content is incorporated into that this is for reference.
Industrial applicibility
Manufacturing method according to the invention can realize having the toothed power transmission spare of oil conservator Batch production, it keeps the ability of lubricant to strengthen, at whole toothed power transmission spares In the manufacturing, do not increase too many manufacturing cost.
Claims (29)
1. a manufacturing has the method for the toothed power Transmission Part of oil conservator, comprises the steps:
Form initial recess on the surface of toothed power Transmission Part workpiece, this initial recess forms the basis of this oil conservator; And
By processing the tooth surface that this toothed power Transmission Part workpiece forms this toothed power Transmission Part, make the trace of this initial recess be left,
The trace of wherein staying this initial recess on this toothed power Transmission Part is as oil conservator.
2. manufacturing according to claim 1 has the method for the toothed power Transmission Part of oil conservator,
The step that wherein forms initial recess is included in the step that forms initial recess on the cylindrical surface of shaft-like workpiece, and
The step that forms tooth surface comprises that this shaft-like workpiece wherein is pushed into the cold forging step in the forging die, and this forging die has the cross section of the shape complementarity of its shape and desirable toothed power Transmission Part.
3. manufacturing according to claim 2 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess comprises the helicla flute on the cylindrical surface that is formed on this shaft-like workpiece, so that form this oil conservator with the shape of groove.
4. manufacturing according to claim 2 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess comprises a plurality of cannelures on the cylindrical surface that is formed on this shaft-like workpiece, so that form this oil conservator with the shape of groove shape.
5. manufacturing according to claim 2 has the method for the toothed power Transmission Part of oil conservator,
A plurality of cannelures of forming along the longitudinal of this initial recess cylindrical surface of being included in this shaft-like workpiece wherein are so that form this oil conservator with the shape of groove shape.
6. manufacturing according to claim 2 has the method for the toothed power Transmission Part of oil conservator,
This initial recess that wherein is formed on the cylindrical surface of this shaft-like workpiece comprises the circular recess part, so that form this oil conservator with the shape of pond shape.
7. according to the gear with commutating tooth or helical teeth of any one described method manufacturing in the claim 2 to 6,
Wherein the tooth surface of commutating tooth or helical teeth does not have burr and is flat basically between adjacent oil conservator.
8. the external splines of making according to any one described method in the claim 2 to 6,
Wherein the tooth surface of external splines does not have burr and is flat basically between adjacent oil conservator.
9. the external screw thread of making according to any one described method in the claim 2 to 6,
Wherein externally threaded tooth surface does not have burr and is flat basically between adjacent oil conservator.
10. the method that has the toothed power Transmission Part of oil conservator according to manufacturing as claimed in claim 1,
The step that wherein forms initial recess is included in the step that forms the initial recess of circumference on the inner circumferential surface of hollow cylinder workpiece, and
The step that forms tooth surface comprises, carries out the step that plastic working forms internal spline by the inner circumferential surface to this hollow cylinder workpiece of this initial recess formation place.
11. manufacturing according to claim 10 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess comprises helicla flute.
12. manufacturing according to claim 10 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess comprises a plurality of cannelures.
13. manufacturing according to claim 10 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess forms by roll extrusion.
14. manufacturing according to claim 11 has the method for the toothed power Transmission Part of oil conservator,
Wherein this helicla flute forms by roll extrusion.
15. manufacturing according to claim 12 has the method for the toothed power Transmission Part of oil conservator,
Wherein these a plurality of cannelures form by roll extrusion.
16. according to the female splined shaft of any one described method manufacturing in the claim 10 to 15,
Wherein the tooth surface of this female splined shaft does not have burr and is flat basically between adjacent oil conservator.
17. the transfer with steering spindle or jackshaft,
Wherein this steering spindle or jackshaft comprise the female splined shaft of using according to the method manufacturing of any one in the claim 10 to 15.
18. manufacturing according to claim 1 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess comprises helicla flute or straight trough, and
The step that forms tooth surface comprises the step that forms tooth, makes the bottom of this helicla flute or this straight trough stay in the zone that comprises this helicla flute or this straight trough on this toothed power Transmission Part workpiece.
19. manufacturing according to claim 1 has the method for the toothed power Transmission Part of oil conservator,
Wherein this initial recess comprises helicla flute or straight trough, and
The step that forms tooth surface comprises the step that forms screw thread or thread spindle, makes the bottom of this helicla flute or straight trough stay in the zone that comprises this helicla flute or straight trough.
20. manufacturing according to claim 18 has the method for the toothed power Transmission Part of oil conservator,
The step that wherein forms tooth surface comprises the step that forms tooth by plastic working.
21. manufacturing according to claim 19 has the method for the toothed power Transmission Part of oil conservator,
The step that wherein forms tooth surface comprises the step that forms screw thread or thread spindle by plastic working.
22. manufacturing according to claim 1 has the method for the toothed power Transmission Part of oil conservator,
Wherein this toothed power Transmission Part comprises pinion,
The step that forms initial recess is included in and forms the spiral fluted step on this pinion workpiece, and
The step of formation tooth surface comprises the step by plastic working formative gear tooth, makes the bottom of this groove stay comprising in this spiral fluted zone of pinion workpiece,
And wherein the method for this manufacturing with toothed power Transmission Part of oil conservator also comprises the step of finishing the formation of this toothed power Transmission Part with machining.
23. the pinion of method manufacturing according to claim 22,
Wherein the tooth surface of this pinion does not have burr, and is flat basically between adjacent oil conservator.
24. pinion according to claim 23, wherein the step of formative gear tooth comprises the formation involute teeth.
25. pinion according to claim 23, wherein the step of formative gear tooth comprises the polygonal involute teeth of formation.
26. manufacturing according to claim 1 has the method for the toothed power Transmission Part of oil conservator,
Wherein this toothed power Transmission Part comprises tooth bar,
The step that forms this initial recess is included in and forms the spiral fluted step on this tooth bar workpiece, and
The step of formation tooth surface comprises the step by plastic working formative gear tooth, makes the bottom of this groove stay comprising in this spiral fluted zone of this tooth bar workpiece,
And wherein the method for this manufacturing with toothed power Transmission Part of oil conservator also comprises the step of finishing the formation of this toothed power Transmission Part with machining.
27. the tooth bar of method manufacturing according to claim 26,
Wherein the tooth surface of this tooth bar does not have burr, and is flat basically between adjacent oil conservator.
28. tooth bar according to claim 27, the step that wherein forms this gear teeth comprises the formation involute teeth.
29. the transfer with gear assembly, this gear assembly comprises intermeshing pinion and tooth bar, and wherein this gear assembly comprises:
Pinion according to claim 23; And
Tooth bar according to claim 27.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004345035A JP4626280B2 (en) | 2004-11-29 | 2004-11-29 | Manufacturing method of toothed transmission member provided with oil reservoir, and toothed transmission member manufactured by this manufacturing method |
| JP345035/2004 | 2004-11-29 | ||
| JP017935/2005 | 2005-01-26 | ||
| JP329232/2005 | 2005-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101065198A true CN101065198A (en) | 2007-10-31 |
Family
ID=36629306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200580040923 Pending CN101065198A (en) | 2004-11-29 | 2005-11-29 | Method for producing transmission member with tooth provided with oil basin and transmission member with tooth produced by this production method |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4626280B2 (en) |
| CN (1) | CN101065198A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102782352A (en) * | 2010-02-23 | 2012-11-14 | 株式会社捷太格特 | Extendable spline shaft, vehicle steering provided with extendable spline shaft, and method for producing extendable spline shaft |
| CN102966457A (en) * | 2011-08-29 | 2013-03-13 | 福特全球技术公司 | Method of making a barbed surface for receiving a thermal spray coating and the surface made by the method |
| CN107009102A (en) * | 2015-11-06 | 2017-08-04 | 大众汽车有限公司 | Method for manufacturing power transmission shaft |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588931B2 (en) * | 1973-12-05 | 1983-02-18 | アイコク工業 （株） | Cold forming method for spline shaft |
| JPH1047457A (en) * | 1996-08-05 | 1998-02-20 | Tochigi Fuji Ind Co Ltd | Differential device |
| JP3503816B2 (en) * | 2000-01-24 | 2004-03-08 | トヨタ自動車株式会社 | Bevel gear with web cold forging die and method of manufacturing bevel gear with web |
| JP3700156B2 (en) * | 2000-12-08 | 2005-09-28 | 栃木富士産業株式会社 | Helical gear and differential device |
| JP3662524B2 (en) * | 2001-07-11 | 2005-06-22 | 本田技研工業株式会社 | Gear forming method and gear forming apparatus |
| JP2003266144A (en) * | 2002-03-15 | 2003-09-24 | Honda Motor Co Ltd | Cold forging method of crank |
-
2004
- 2004-11-29 JP JP2004345035A patent/JP4626280B2/en not_active Expired - Fee Related
-
2005
- 2005-11-29 CN CN 200580040923 patent/CN101065198A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102782352A (en) * | 2010-02-23 | 2012-11-14 | 株式会社捷太格特 | Extendable spline shaft, vehicle steering provided with extendable spline shaft, and method for producing extendable spline shaft |
| CN102966457A (en) * | 2011-08-29 | 2013-03-13 | 福特全球技术公司 | Method of making a barbed surface for receiving a thermal spray coating and the surface made by the method |
| CN102966457B (en) * | 2011-08-29 | 2016-12-21 | 福特全球技术公司 | Accept surface, the method that coating is put on surface and the explosive motor of spraying |
| CN107009102A (en) * | 2015-11-06 | 2017-08-04 | 大众汽车有限公司 | Method for manufacturing power transmission shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006150410A (en) | 2006-06-15 |
| JP4626280B2 (en) | 2011-02-02 |
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