CN107559405B - Gear and transmission mechanism - Google Patents
Gear and transmission mechanism Download PDFInfo
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- CN107559405B CN107559405B CN201710832192.6A CN201710832192A CN107559405B CN 107559405 B CN107559405 B CN 107559405B CN 201710832192 A CN201710832192 A CN 201710832192A CN 107559405 B CN107559405 B CN 107559405B
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Abstract
The present invention provides a kind of gear and transmission mechanisms, belong to gear technique field.Gear includes the sequentially connected gear teeth, wheel rim, former and wheel hub, and using the face of the rotational axis line perpendicular to gear as benchmark face, former is tilted relative to datum level.The gear can deform under load effect, reduce each operating condition engagement magnitude of misalignment and magnitude of misalignment difference, reduce design of gears profiling quantity, to guarantee that gear teeth face carries, improve the strength of gear teeth and service life.Transmission mechanism includes gear, the repertoire with the gear.
Description
Technical field
The present invention relates to gear technique fields, in particular to a kind of gear and transmission mechanism.
Background technique
Gear refers to the mechanical organ for having gear continuously to engage passing movement and power on wheel rim.Gear answering in transmission
With very early there have been.At the end of the 19th century, the principle of cutting method and the phase of special purpose machine tool and cutter using this principle cutting are transformed into
After appearance, with the development of production, the stationarity of gear operation is taken seriously.
Inventor has found that traditional gear at least has the disadvantage in that under study for action
If loaded backgear engagement magnitude of misalignment is very big, the profiling quantity of correction of the flank shape needed for gear can be bigger, at present tooth
Taking turns correction of the flank shape is realized by roll flute, and excessive grinding modification amount increases the roll flute time, is easy to form grinding in tooth root
Boss and reduce tooth face hardness；
If the operating condition that gear uses is changeable, for example, in heavy-duty vehicle transmission gear use include starting, climbing, turning,
The various workings such as straight trip, the engagement magnitude of misalignment difference of each operating condition gear is larger, and correction of the flank shape often can only be for one of work
The magnitude of misalignment that condition generates is designed, therefore cannot be guaranteed that every kind of operating condition flank of tooth can be carried.
Summary of the invention
The object of the present invention is to provide a kind of gears, improve the deficiencies in the prior art, can be under load effect
Deformation reduces each operating condition engagement magnitude of misalignment and magnitude of misalignment difference, design of gears profiling quantity is reduced, to guarantee that gear teeth face is equal
It carries, improves the strength of gear teeth and service life.
Another object of the present invention is to provide a kind of transmission mechanisms comprising gear mentioned above, having should
The repertoire of gear.
The embodiment of the present invention is achieved in that
The embodiment provides a kind of gears comprising the sequentially connected gear teeth, wheel rim, former and wheel hub, with
Face perpendicular to the rotational axis line of the gear is benchmark face, and the former is tilted relative to the datum level；
The former has the first opposite side and second side, and the distance between first side and described second side are c,
The c is greater than 0.1b and is less than 0.2b, and the b is the facewidth of the gear teeth；
First side includes from the wheel rim to sequentially connected first, second on the direction of the wheel hub and
Three, described second is plane, and second angle between the datum level is a, and a is greater than 10 ° and is less than
20°。
Specifically, the gear can deform under load effect, reduce each operating condition engagement magnitude of misalignment and magnitude of misalignment difference,
Design of gears profiling quantity is reduced, to guarantee that gear teeth face carries, improves the strength of gear teeth and service life.
Optionally, described first include from the wheel rim to the first sub-portion sequentially connected on the direction of the wheel hub and
Second sub-portion, first sub-portion are plane, and second sub-portion is arc surface, first sub-portion and the second sub-portion phase
Cut, second sub-portion and described second it is tangent.
Optionally, the third portion include from the wheel rim to third sub-portion sequentially connected on the direction of the wheel hub and
4th sub-portion, the third sub-portion are arc surface, and the 4th sub-portion is plane, the third sub-portion and the 4th sub-portion phase
Cut, the third sub-portion and it is described second it is tangent.
Optionally, described second side include from the wheel rim to sequentially connected 4th on the direction of the wheel hub,
Five and the 6th, described 5th is plane, and the 5th angle between the datum level is d, and the d is greater than
10 ° and less than 20 °.
Optionally, described 4th include from the wheel rim to the 5th sub-portion sequentially connected on the direction of the wheel hub and
6th sub-portion, the 5th sub-portion are plane, and the 6th sub-portion is arc surface, the 5th sub-portion and the 6th sub-portion phase
Cut, the 6th sub-portion and described 5th it is tangent.
Optionally, described 6th include from the wheel rim to the 7th sub-portion sequentially connected on the direction of the wheel hub and
8th sub-portion, the 7th sub-portion are arc surface, and the 8th sub-portion is plane, the 7th sub-portion and the 8th sub-portion phase
Cut, the 7th sub-portion and described 5th it is tangent.
Optionally, the plane where the wheel rim end face is parallel with the plane where the wheel hub end face and is not overlapped.
Optionally, the former is provided with multiple sets of vias, and each sets of vias includes multiple through-holes, the through-hole
It is open arc-shaped, multiple through-holes in each sets of vias are from the wheel hub to successively dividing on the direction of the wheel rim
Cloth, central angle corresponding to multiple through-holes in each sets of vias is identical, multiple institutes in each sets of vias
Through-hole is stated on from the wheel hub to the direction of the wheel rim, the width of the through-hole is gradually reduced, in each sets of vias
In, the through-hole and the wheel hub close to the wheel hub are greater than close to the through-hole of the wheel rim and the spacing of the wheel rim
Spacing.
Optionally, the gear further includes the first detection piece and the second detection piece, one end of first detection piece and institute
Former connection is stated, the other end of first detection piece is located in the through-hole, and the other end of first detection piece has ball
One end of first test section of shape, second detection piece is connect with the former, and the other end of second detection piece is located at
In the through-hole, the other end of second detection piece has the second spherical test section, first test section and described the
The contact of two test sections.
The embodiments of the present invention also provide a kind of transmission mechanisms comprising gear mentioned above has the gear
Repertoire.
Compared with prior art, the beneficial effect of the embodiment of the present invention is:
In conclusion the gear can deform under load effect, reduces each operating condition engagement magnitude of misalignment and magnitude of misalignment is poor
Value reduces design of gears profiling quantity, to guarantee that gear teeth face carries, improves the strength of gear teeth and service life.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram for the gear that the embodiment of the present invention 1 provides；
Fig. 2 is the schematic cross-sectional view of Section X-X in Fig. 1；
Fig. 3 is the structural schematic diagram for the gear that the embodiment of the present invention 2 provides；
Fig. 4 is the structural schematic diagram for the former that the embodiment of the present invention 2 provides.
Icon: 100- gear；101- rotational axis line；102- datum level；The first side 103-；104- second side；10- wheel
Tooth；20- wheel rim；30- former；301- through-hole；The first detection piece of 302-；The first test section of 303-；The second detection piece of 304-；305-
Second test section；31- first；The first sub-portion of 311-；The second sub-portion of 312-；32- second；33- third portion；331- third
Portion；The 4th sub-portion of 332-；34- the 4th；The 5th sub-portion of 341-；The 6th sub-portion of 342-；35- the 5th；36- the 6th；361-
7th sub-portion；The 8th sub-portion of 362-；40- wheel hub.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the side of the instructions such as term " on ", "lower", "left", "right", "inner"
Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the side usually put
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply
Relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
Embodiment 1
Fig. 1 and Fig. 2 are please referred to, a kind of gear 100 is present embodiments provided comprising the sequentially connected gear teeth 10, wheel rim
20, former 30 and wheel hub 40, using the face of the rotational axis line 101 perpendicular to gear 100 as benchmark face 102, former 30 relative to
Datum level 102 tilts.
The gear teeth 10, wheel rim 20, former 30 are fixedly connected or are integrally formed with wheel hub 40.
The setting of 30 relative tilt of former, for the gear 100 under load effect, former 30 can produce deformation to have
Certain flexibility.
When gear 100 engages loaded, former 30 can stress deformation, reduce gear 100 engagement magnitude of misalignment, to reduce
The profiling quantity that gear 100 designs, since the deflection of flexible former 30 is related with operating loading size, i.e., load is bigger, engagement
The magnitude of misalignment of generation is bigger, and the deflection of flexible former 30 is also bigger at this time, and the gear 100 that 30 deflection of former can reduce is nibbled
It is also bigger to close magnitude of misalignment, therefore the engagement magnitude of misalignment difference of each operating condition lower gear 100 becomes smaller, by engaging for gear 100
Magnitude of misalignment correction of the flank shape can guarantee that the flank of tooth of meshing gear 100 under each operating condition is all realized and carries, thus improve gear 100 intensity and
Reliability.
Optionally, former 30 has the first opposite side 103 and second side 104, between the first side 103 and second side 104
Distance be c, c be greater than 0.1b and be less than 0.2b, b be the gear teeth 10 the facewidth.
By the way that the former 30 of the size is arranged, guarantee its with it is flexible under the premise of, can preferably realize power pass
It passs.
When it is implemented, c can select 0.1b to any number between 0.2b, can for 0.11b, 0.12b,
0.13b, 0.14b, 0.15b, 0.16b, 0.17b, 0.18b, 0.19b etc..
Optionally, the first side 103 includes from wheel rim 20 to sequentially connected first 31, second on the direction of wheel hub 40
32 and third portion 33, second 32 is plane, and the angle between second 32 and datum level 102 is a, and a is greater than 10 ° and is less than
20°。
When it is implemented, any number between 10 ° to 20 ° can be selected, can for 11 °, 12 °, 13 °, 14 °,
15 °, 16 °, 17 °, 18 °, 19 ° etc..
Schematic cross-sectional view shown in Fig. 2 in conjunction with Fig. 2, that is to say, that shown in Fig. 2 second 32 linearly.
Optionally, first 31 includes from wheel rim 20 to the first sub-portion 311 sequentially connected on the direction of wheel hub 40 and
Two sub-portions 312, the first sub-portion 311 are plane, and the second sub-portion 312 is arc surface, and the first sub-portion 311 and the second sub-portion 312 are tangent,
Second sub-portion 312 and second it is 32 tangent.
It is schematic cross-sectional view shown in Fig. 2 in conjunction with Fig. 2, that is to say, the first sub-portion 311 shown in Fig. 2 is linearly, the
Two sub-portions 312 are in circular arc.
The junction that first sub-portion 311 and the second sub-portion 312 both are tangential on, the second sub-portion 312 and second it is 32 tangent
In the junction of the two, smooth transition is realized.It is whole easily manufactured, avoid stress from concentrating, it is practical.
Optionally, third portion 33 includes from wheel rim 20 to third sub-portion 331 sequentially connected on the direction of wheel hub 40 and
Four sub-portions 332, third sub-portion 331 are arc surface, and the 4th sub-portion 332 is plane, and third sub-portion 331 and the 4th sub-portion 332 are tangent,
Third sub-portion 331 and second it is 32 tangent.
Similarly, third sub-portion 331 shown in Fig. 2 is in circular arc, and the 4th sub-portion 332 is linearly.
The junction that third sub-portion 331 and the 4th sub-portion 332 both are tangential on, third sub-portion 331 and second it is 32 tangent
In the junction of the two, smooth transition is realized.It is whole easily manufactured, avoid stress from concentrating, it is practical.
Optionally, second side 104 includes from wheel rim 20 to sequentially connected 4th 34, the 5th on the direction of wheel hub 40
35 and the 6th 36, the 5th 35 is plane, and the 5th angle between 35 and datum level 102 is d, and d is greater than 10 ° and is less than
20°。
Similarly, shown in Fig. 2 the 5th 35 linearly.When it is implemented, d can select it is any between 10 ° to 20 °
Numerical value can be 11 °, 12 °, 13 °, 14 °, 15 °, 16 °, 17 °, 18 °, 19 ° etc..
The distance between first side 103 and second side 104 are c, it is understood that between second 32 and the 5th 35
Distance be c.
Of course, when second 32 with the 5th 35 it is parallel when, c is spacing between the two.
Second 32 and when the 5th 35 relative tilt, which can be understood as the shortest distance between the two.
Optionally, the 4th 34 includes from wheel rim 20 to the 5th sub-portion 341 sequentially connected on the direction of wheel hub 40 and
Six sub-portions 342, the 5th sub-portion 341 are plane, and the 6th sub-portion 342 is arc surface, and the 5th sub-portion 341 and the 6th sub-portion 342 are tangent,
6th sub-portion 342 and the 5th it is 35 tangent.
Similarly, linearly, the 6th sub-portion 342 is in circular arc to the 5th sub-portion 341 shown in Fig. 2.
The junction that 5th sub-portion 341 and the 6th sub-portion 342 both are tangential on, the 6th sub-portion 342 and the 5th it is 35 tangent
In the junction of the two.
Optionally, the 6th 36 includes from wheel rim 20 to the 7th sub-portion 361 sequentially connected on the direction of wheel hub 40 and
Eight sub-portions 362, the 7th sub-portion 361 are arc surface, and the 8th sub-portion 362 is plane, and the 7th sub-portion 361 and the 8th sub-portion 362 are tangent,
7th sub-portion 361 and the 5th it is 35 tangent.
Similarly, the 7th sub-portion 361 shown in Fig. 2 is in circular arc, and the 8th sub-portion 362 is linearly.
The junction that 7th sub-portion 361 and the 8th sub-portion 362 both are tangential on, the 5th 35 tangent with the 7th sub-portion 361
In the junction of the two.
Optionally, the plane where 20 end face of wheel rim is parallel with the plane where 40 end face of wheel hub and is not overlapped.
It in conjunction with Fig. 2, is described with the relative position in Fig. 2, where the plane and 40 end face of wheel hub where 20 end face of wheel rim
Both planes it is parallel, and be not overlapped.It can be understood as 40 relative misalignment of wheel rim 20 and wheel hub, 20 phase of wheel rim shown in Fig. 2
A certain distance has been displaced to the right for wheel hub 40.
The gear 100 selected in the present embodiment, structure can be understood as complete unsymmetric structure, base shown in Fig. 2
Quasi- face 102 it can be appreciated that the gear teeth 10 the axis of symmetry, at left and right sides of structure it is completely different, such design can
Effectively to realize the flexibility of former 30, and it is durable.
It needs exist for explaining, datum level 102, rotational axis line 101 and axis of symmetry etc. are for preferably retouching
The introduced virtual lines of the structure of gear 100 are stated, are not the structure of gear 100 itself.
Figure embodiment:
In conjunction with Fig. 1, gear 100 includes the sequentially connected gear teeth 10, wheel rim 20, former 30 and wheel hub 40.
In conjunction with Fig. 2, the gear teeth 10 and wheel rim 20 are arranged with 40 relative misalignment of wheel hub as a whole, the end face of wheel hub 40 and wheel rim
20 end face is parallel and is not overlapped.
Former 30 has the first opposite side 103 and second side 104.
First side 103 includes from wheel rim 20 to the first sub-portion 311 sequentially connected on the direction of wheel hub 40, the second sub-portion
312, second 32, third sub-portion 331 and the 4th sub-portion 332.
First sub-portion 311 is connected with the end face of wheel rim 20, and the first sub-portion 311 is plane, the first sub-portion 311 and datum level
102 relative tilts.
Second sub-portion 312 and the connection of the first sub-portion 311, the second sub-portion 312 are arc surface, and the two is tangential on the connection of the two
Place.
It is connect with the second sub-portion 312 for second 32, second 32 is plane, and the two is tangential on the junction of the two.Second
Portion 32 and 102 relative tilt of datum level.
Third sub-portion 331 and second 32 connection, third sub-portion 331 are arc surface, and the two is tangential on the junction of the two.
4th sub-portion 332 and third sub-portion 331 connect, and the 4th sub-portion 332 is plane, and the two is tangential on the connection of the two
Place.
4th sub-portion 332 is connect with the end face of wheel hub 40, the 4th sub-portion 332 and 102 Relative vertical of datum level.
Second side 104 includes from wheel rim 20 to the 5th sub-portion 341 sequentially connected on the direction of wheel hub 40, the 6th sub-portion
342, the 5th the 35, the 7th sub-portion 361 and the 8th sub-portion 362.
5th sub-portion 341 is connect with the end face of wheel rim 20, and the 5th sub-portion 341 is plane, the 5th sub-portion 341 and datum level
102 relative tilts.
6th sub-portion 342 is connect with the 5th sub-portion 341, and the 6th sub-portion 342 is arc surface, the 5th sub-portion 341 and the 6th son
Portion 342 is tangential on the junction of the two.
It is connect with the 6th sub-portion 342 for 5th 35, the 5th 35 is plane, and the 5th 35 is tangential on the 6th sub-portion 342
The junction of the two, the 5th 35 tilts relative to datum level 102.
7th sub-portion 361 and the 5th 35 connection, the 7th sub-portion 361 are arc surface, the 7th sub-portion 361 and the 5th 35 phases
It is cut in the junction of the two.
8th sub-portion 362 and the connection of the 7th sub-portion 361, the 8th sub-portion 362 are plane, the 7th sub-portion 361 and the 8th sub-portion
362 are tangential on the junction of the two.
8th sub-portion 362 is connect with the end face of wheel hub 40, and the 8th sub-portion 362 is vertical relative to datum level 102.
Tilt angle and fiveth sub-portion 341 inclining relative to datum level 102 of first sub-portion 311 relative to datum level 102
Rake angle etc., and the width that the width that extends internally of the first sub-portion 311 and the 5th sub-portion 341 extend internally differs.
The corresponding arc length of second sub-portion 312 and the corresponding arc length of the 6th sub-portion 342 differ, and the second sub-portion 312 is corresponding
Radius is differed with the corresponding radius of the 6th sub-portion 342.
Second 32 tilt angle relative to datum level 102 and the 5th 35 tilt angle relative to datum level 102
It differs, and second 32 corresponding length and the 5th 35 corresponding length differ.
The corresponding arc length of third sub-portion 331 and the corresponding arc length of the 7th sub-portion 361 differ, and third sub-portion 331 is corresponding
Radius and the corresponding radius of the 7th sub-portion 361 differ.
The corresponding length of 4th sub-portion 332 and the corresponding length of the 8th sub-portion 362 differ.
A kind of gear 100 provided according to embodiments of the present invention, the working principle of gear 100 is:
It is arranged by 30 relative tilt of former, controls the thickness of former 30, pass through the control to each spot size of former 30
System, makes it have certain flexibility, and can be realized the included function of gear 100 itself.
Embodiment 2
Referring to FIG. 3, the present embodiment also provides a kind of gear 100, the technical solution that embodiment 1 describes is equally applicable to
The present embodiment, the published technical solution of embodiment 1 are not repeated to describe.
Specifically, the present embodiment the difference from embodiment 1 is that, former 30 is provided with multiple sets of vias, each sets of vias
Including multiple through-holes 301, the opening of through-hole 301 is arc-shaped, and multiple through-holes 301 in each sets of vias are from wheel hub 40 to wheel rim
It is sequentially distributed on 20 direction, central angle corresponding to multiple through-holes 301 in each sets of vias is identical, in each sets of vias
On from wheel hub 40 to the direction of wheel rim 20, the width of through-hole 301 is gradually reduced multiple through-holes 301, in each sets of vias, is leaned on
The through-hole 301 of nearly wheel rim 20 and the spacing of wheel rim 20 are greater than the spacing of through-hole 301 and wheel hub 40 close to wheel hub 40.
In conjunction with Fig. 3, there are four sets of vias for the tool of gear 100 in the present embodiment, and each sets of vias includes three through-holes
301, when it is implemented, the quantity of sets of vias can for two, three, five or more.
301 quantity of through-hole in each sets of vias may be two, four, five or more.
301 quantity of through-hole in the present embodiment in each sets of vias is identical, of courses, can not also phase in other embodiments
Together.
The setting of through-hole 301, when gear 100 bear radial force after, due to there is the presence of through-hole 301, can play compared with
Good buffer function, after bearing biggish radial force, the width of through-hole 301 narrows, to assist former 30 to generate small shape
Become, whole using effect is preferable.
Referring to FIG. 4, optional, gear 100 further includes the first detection piece 302 and the second detection piece 304, the first detection piece
302 one end is connect with former 30, and the other end of the first detection piece 302 is located in through-hole 301, the first detection piece 302 it is another
End has the first spherical test section 303, and one end of the second detection piece 304 connect with former 30, the second detection piece 304 it is another
End is located in through-hole 301, and the other end of the second detection piece 304 has the second spherical test section 305, the first test section 303 with
The contact of second test section 305.
First detection piece 302 and the second detection piece 304 can be to be fixedly connected with former 30, is also possible to be integrally formed
's.
Not in the case where by radial force, the first test section 303 contacts gear 100 with the second test section 305, works as gear
After 100 bear biggish radial force, the width of through-hole 301 narrows, then necessarily leads to relatively close second inspection of the first detection piece 302
Part 304 is surveyed, in the process, the first test section 303 and the second test section 305 generate friction, and friction necessarily leads to polishing scratch, use
Person can intuitively find out whether the gear 100 once bore biggish radial force, so that former 30 by observing polishing scratch
Generated biggish deformation.User can be according to the first test section 303 of gear 100 and the abrasion feelings of the second test section 305
Condition, it is determined whether need replacing new gear 100.
Embodiment 3
The present embodiment also provides a kind of transmission mechanism comprising gear 100 mentioned above has the gear 100
Repertoire.
The structure of gear 100 can be with reference implementation example 1 or 2.
The transmission mechanism can select a gear 100 mentioned above, two or more can also be selected above-mentioned
The gear 100 mentioned.
The transmission mechanism has preferable in the case where heavily loaded, applying working condition is changeable, coupling gear engages the biggish situation of magnitude of misalignment
Using effect.
In conclusion the gear 100 can deform under load effect the present invention provides a kind of gear 100, reduce each
A operating condition engagement magnitude of misalignment and magnitude of misalignment difference reduce the design profiling quantity of gear 100 and mention to guarantee that 100 flank of tooth of gear carries
High 100 intensity of gear and service life.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of gear, which is characterized in that including the sequentially connected gear teeth, wheel rim, former and wheel hub, perpendicular to the gear
The face of rotational axis line be benchmark face, the former tilts relative to the datum level；
The former has the first opposite side and second side, and the distance between first side and described second side are c, described
C is greater than 0.1b and is less than 0.2b, and the b is the facewidth of the gear teeth；
First side includes from the wheel rim to sequentially connected first, second and third on the direction of the wheel hub
Portion, described second is plane, and second angle between the datum level is a, and a is greater than 10 ° and is less than
20°；
The former is provided with multiple sets of vias, and each sets of vias includes multiple through-holes, and the opening of the through-hole is arc-shaped,
Multiple through-holes in each sets of vias are each described from the wheel hub to being sequentially distributed on the direction of the wheel rim
Central angle corresponding to multiple through-holes in sets of vias is identical, and multiple through-holes in each sets of vias are from institute
It states on wheel hub to the direction of the wheel rim, the width of the through-hole is gradually reduced, in each sets of vias, close to the wheel
The through-hole of edge and the spacing of the wheel rim are greater than the spacing of the through-hole and the wheel hub close to the wheel hub；
The gear further includes the first detection piece and the second detection piece, and one end of first detection piece is connect with the former,
The other end of first detection piece is located in the through-hole, and the other end of first detection piece has the first spherical detection
The one end in portion, second detection piece is connect with the former, and the other end of second detection piece is located in the through-hole, institute
The other end for stating the second detection piece has the second spherical test section, and first test section is contacted with second test section.
2. gear according to claim 1, which is characterized in that described first includes from the wheel rim to the wheel hub
Sequentially connected first sub-portion and the second sub-portion on direction, first sub-portion are plane, and second sub-portion is arc surface, institute
State the first sub-portion and second sub-portion be tangent, second sub-portion and described second it is tangent.
3. gear according to claim 1, which is characterized in that the third portion includes from the wheel rim to the wheel hub
Sequentially connected third sub-portion and the 4th sub-portion on direction, the third sub-portion are arc surface, and the 4th sub-portion is plane, institute
State third sub-portion and the 4th sub-portion be tangent, the third sub-portion and it is described second it is tangent.
4. gear according to claim 1-3, which is characterized in that described second side includes from the wheel rim to institute
Sequentially connected 4th, the 5th and the 6th on the direction of wheel hub are stated, described 5th is plane, described 5th and institute
Stating the angle between datum level is d, and the d is greater than 10 ° and less than 20 °.
5. gear according to claim 4, which is characterized in that described 4th includes from the wheel rim to the wheel hub
Sequentially connected 5th sub-portion and the 6th sub-portion on direction, the 5th sub-portion are plane, and the 6th sub-portion is arc surface, institute
State the 5th sub-portion and the 6th sub-portion be tangent, the 6th sub-portion and described 5th it is tangent.
6. gear according to claim 4, which is characterized in that described 6th includes from the wheel rim to the wheel hub
Sequentially connected 7th sub-portion and the 8th sub-portion on direction, the 7th sub-portion are arc surface, and the 8th sub-portion is plane, institute
State the 7th sub-portion and the 8th sub-portion be tangent, the 7th sub-portion and described 5th it is tangent.
7. gear according to claim 1-3, which is characterized in that plane where the wheel rim end face and described
Plane where wheel hub end face is parallel and is not overlapped.
8. a kind of transmission mechanism, which is characterized in that including the described in any item gears of claim 1-7.
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| CN201710832192.6A CN107559405B (en) | 2017-09-15 | 2017-09-15 | Gear and transmission mechanism |
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| CN201710832192.6A CN107559405B (en) | 2017-09-15 | 2017-09-15 | Gear and transmission mechanism |
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| CN107559405B true CN107559405B (en) | 2019-07-19 |
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| JPH09144852A (en) * | 1995-11-22 | 1997-06-03 | Kenji Mimura | Differential device |
| CN201335245Y (en) * | 2009-01-09 | 2009-10-28 | 江阴市燎原锻压有限公司 | Forging gear blank |
| CN102950437A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Processing process for timing gear of cam shaft |
| CN102950441A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Production method for timing gear for engines |
| CN103056628A (en) * | 2012-10-27 | 2013-04-24 | 富莱茵汽车部件有限公司 | Crankshaft timing gear manufacturing method |
| CN104439955A (en) * | 2014-11-17 | 2015-03-25 | 江苏太平洋精锻科技股份有限公司 | Two-sided combination gear molding method |
| CN207333623U (en) * | 2017-09-15 | 2018-05-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Gear and transmission mechanism |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09144852A (en) * | 1995-11-22 | 1997-06-03 | Kenji Mimura | Differential device |
| CN201335245Y (en) * | 2009-01-09 | 2009-10-28 | 江阴市燎原锻压有限公司 | Forging gear blank |
| CN102950437A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Processing process for timing gear of cam shaft |
| CN102950441A (en) * | 2012-10-27 | 2013-03-06 | 富莱茵汽车部件有限公司 | Production method for timing gear for engines |
| CN103056628A (en) * | 2012-10-27 | 2013-04-24 | 富莱茵汽车部件有限公司 | Crankshaft timing gear manufacturing method |
| CN104439955A (en) * | 2014-11-17 | 2015-03-25 | 江苏太平洋精锻科技股份有限公司 | Two-sided combination gear molding method |
| CN207333623U (en) * | 2017-09-15 | 2018-05-08 | 中车戚墅堰机车车辆工艺研究所有限公司 | Gear and transmission mechanism |
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|---|---|
| CN107559405A (en) | 2018-01-09 |
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Address after: 213000, No. 258, Wuyi Road, Changzhou City, Jiangsu Province Patentee after: CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 213000, No. 258, Wuyi Road, Changzhou City, Jiangsu Province Patentee before: CRRC QISHUYAN INSTITUTE Co.,Ltd. Guo jiahuodiqu before: Zhong Guo |