CN106763744A - Shifting detent mechanism and speed changer - Google Patents
Shifting detent mechanism and speed changer Download PDFInfo
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- CN106763744A CN106763744A CN201710179373.3A CN201710179373A CN106763744A CN 106763744 A CN106763744 A CN 106763744A CN 201710179373 A CN201710179373 A CN 201710179373A CN 106763744 A CN106763744 A CN 106763744A
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- workpiece
- push rod
- spring
- adjustment
- block selecting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Shifting detent mechanism and speed changer that the present invention is provided, shifting detent mechanism includes matrix, block selecting push rod, first adjustment workpiece and the first spring, first spring can be due to giving block selecting push rod outside pressure by block selecting push rod and the first adjustment workpiece compression, and the stop block of block selecting push rod limits the trend that block selecting push rod continues to move out, the initial alignment for so having allowed for shifting detent mechanism will not be influenceed by spring pressure, and the initial torque of shifting detent mechanism is determined by the compressed shape variable between the mounted block selecting push rod of the first spring and the first adjustment workpiece；Now the size or adjustment first by adjusting the first spring adjust the distance between workpiece and blind hole bottom surface to be adjusted initial torque, which achieves initial alignment and the separate operation of initial torque, ensure that initial torque adjustment does not interfere with initial alignment size, different user is met to realizing the requirement of adjustment block selecting torque, the comfortableness of product is improve.
Description
Technical field
The present invention relates to automotive field, more specifically, it is related to a kind of shifting detent mechanism and speed changer.
Background technology
At present, the detent mechanism that automotive transmission industry shifting is used has：Spring and pin bank are closed；Spring, pin and fixed
Whether position steel ball combination or these three detent mechanisms of Schaeffler mechanism, can position when block selecting detent mechanism directly affects gearshift
Accurately, whether gearshift torque (feel) is suitable.Upgrade along with automotive engineering, requirement of the user to shifting detent mechanism is increasingly
Lifting, how the positioning block selecting stroke of higher precision, adjust block selecting torque requirement comfortableness is wanted with adapting to different user
Asking has turned into existing automotive engineering problem demanding prompt solution.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.
Therefore, it is an advantage of the invention to provide a kind of shifting detent mechanism.
It is a further object of the invention to provide a kind of speed changer.
To achieve the above object, embodiments in accordance with the present invention provide a kind of shifting detent mechanism, for speed changer,
Shifting detent mechanism includes：Matrix, one end of matrix has first through hole；Block selecting push rod, positioned at the inside of matrix, block selecting is pushed away
One end of bar reaches the outside of matrix by first through hole；First adjustment workpiece, one end of the first adjustment workpiece extend into choosing
Gear push rod inside blind hole in, first adjustment workpiece the other end on have the first spacing ring, matrix away from first through hole one
End is resisted against on the first spacing ring；First spring, between the first adjustment workpiece and block selecting push rod, one end set of the first spring
It is located on the first adjustment workpiece, the other end of the first spring is resisted against the end of blind hole；Wherein, set on the outer wall of block selecting push rod
Stop block is equipped with, stop block is located at the inside of matrix, for limiting outside block selecting pushrod movement to the matrix inside stop block
Portion.
The shifting detent mechanism that the present invention is provided includes matrix, block selecting push rod, the first adjustment workpiece and the first spring, choosing
The one end for keeping off push rod is stretched out from the first through hole of base end, and the first spring, first are internally provided with the blind hole of the other end
Spring is adapted with the inwall of blind hole, and the first spring is set on one end of the first adjustment workpiece, in block selecting push rod and
One adjustment workpiece assembling after, be installed to block selecting push rod and first adjustment workpiece between the first spring can due to by compression to
The outside pressure of block selecting push rod, and stop block is provided with the outer wall of block selecting push rod, stop block limit block selecting push rod continue to
The trend of outer motion, block selecting push rod is limited the ultimate range moved to matrix outer and is limited, and has so allowed for choosing
The initial alignment of gearshift positioning mechanism will not be influenceed by spring pressure, block selecting push rod away from matrix end face to matrix table
The distance between face is the initial position of shifting detent mechanism, and the initial torque of shifting detent mechanism is then by first
What the compressed shape variable that spring is mounted between block selecting push rod and the first adjustment workpiece was determined, when the deformation that the first spring is compressed
Amount is big, i.e. when the first spring is big to the active force of block selecting push rod, the initial torque of shifting detent mechanism is then big；When the first spring
The deformation quantity for being compressed is small, i.e., to the active force hour of block selecting push rod, the initial torque of shifting detent mechanism is then for the first spring
It is small；Now the distance between workpiece and blind hole bottom surface can be adjusted come right by the size or adjustment first that adjust the first spring
Initial torque is adjusted, which achieves initial alignment and the separate operation of initial torque, it is ensured that initial torque is adjusted not
Initial alignment size is influenced whether, different user is met to realizing the requirement of adjustment block selecting torque, the comfortable of product is improve
Property.
In addition, the shifting detent mechanism provided according to the above embodiment of the present invention also has following additional technical feature：
In any of the above-described technical scheme, it is preferable that set on the inwall of the periphery of the first adjustment workpiece and matrix respectively
Screw thread is equipped with, makes to be attached by screw thread between the first adjustment workpiece and the axially facing surface of matrix.
In the technical scheme, screw thread is provided with the inwall of the periphery of the first adjustment workpiece and matrix respectively so that
It is attached by screw thread between first adjustment workpiece and the axially facing surface of matrix, can is now the first adjustment workpiece and base
Directly it is connected through a screw thread between body, or is connected by having threaded spline between the first adjustment workpiece and matrix
Connect, so all ensure that in the case where shifting detent mechanism various components inside is not destroyed, it is only necessary to revolve connection screw thread
Enter or screw out the control that can be achieved with to the first amount of spring compression, the control to initial torque is then realized, by so
Design structure, it is ensured that in the case where part need not be changed, complete the change of initial torque, save cost, carry
The market competition of product high.
In any of the above-described technical scheme, it is preferable that also include：Second adjustment workpiece, adjusts positioned in matrix and first
Between workpiece, the screw thread being adapted with the first adjustment workpiece and matrix is provided with the outboard sidewalls of the second tune workpiece, and
Second adjustment workpiece lateral wall on be provided with the second spacing ring so that the end of matrix be resisted against on the second spacing ring and then
Abut to indirectly on the first spacing ring；Positioning workpiece, one end has the second through hole, the outer wall phase of the second through hole and block selecting push rod
Adaptation, makes block selecting push rod pass through the second through hole；Second spring, is set on the outer wall of block selecting push rod, and positioned at block selecting push rod with
Between positioning workpiece, one end of second spring is resisted against on the second adjustment workpiece, and the other end of second spring is resisted against positioning work
On the inwall of part.
In the technical scheme, shifting detent mechanism also includes the second adjustment workpiece, positions workpiece and second spring, the
Two adjustment workpiece settings matrix and first adjustment workpiece between, and respectively with first adjustment workpiece and matrix entered by screw thread
Row connection, positioning workpiece is set on the outer wall of block selecting push rod by the second through hole, is set between block selecting push rod and positioning workpiece
It is equipped with second spring, positioning workpiece is limited in the interior of matrix, can be by setting limit element on inwall, or by matrix
Inwall be arranged to the conical surface, it is also possible to play limitation positioning workpiece and move forward, the motion of stop block on block selecting push rod
During to the position for positioning workpiece, positioning workpiece is stopped the motion of stop block, is now needed if needing to travel forward again
Overcome the elastic force of the first spring and second spring, this operation power for allowing for gear selecting is presented peak value to be increased so that user is obvious
Experience no longer identical with active force before, without being further continued for advancing block selecting push rod, realize shifting detent mechanism
One selected position, an and change for selecting torque is then had influence on to the power that the first spring is compressed, which achieves a selected position and
One separate operation for selecting torque a, it is ensured that when bit selecting is put, torque adjustment does not interfere with one and selects location dimension；And shifting is fixed
Position mechanism continues to overcome the elastic force of the first spring and second spring to advance, now two select torque by the first spring and second spring
Constitute simultaneously, two selected positions are then defined by speed changer, two selected positions and two also realized simultaneously and selects the separate operation of torque,
When ensure that two bit selectings are put, torque adjustment does not interfere with two and selects location dimension.
In any of the above-described technical scheme, it is preferable that the distance of block selecting push rod to the first spring bottom end is more than or equal to block selecting
Push rod away from the first adjustment workpiece end face the distance between to the outer face of matrix.
In the technical scheme, the distance of block selecting push rod to the first spring bottom end is adjusted more than or equal to block selecting push rod away from first
The end face of whole workpiece is the distance between to the outer face of matrix so that block selecting push rod when being pushed into, its bottom surface be not first by
First adjusts workpiece and stops, it is ensured that block selecting push rod will not be by the first adjustment workpiece limitation when intrinsic silicon is moved.
In any of the above-described technical scheme, it is preferable that there is the boss protruded to centerline direction on the madial wall of matrix,
Positioning workpiece is ridden upon on boss away from one end of the second through hole.
In the technical scheme, there is the boss protruded to centerline direction on the madial wall of matrix so that positioning work
One end of part is ridden upon on boss, it is ensured that positioning workpiece will not be moved to the orientation of stop block so that one selects position location not
Become.
In any of the above-described technical scheme, it is preferable that stop block is integral type structure with block selecting push rod；And/or first limit
Position ring and the first adjustment workpiece are integral type structure；And/or second spacing ring and second adjustment workpiece be integral type structure.
In the technical scheme, by respectively by stop block and block selecting push rod, the first spacing ring and the first adjustment workpiece, second
Spacing ring and the second adjustment workpiece setting are integral type structure, because the mechanical property of integral structure is good, it is thus possible to improve
Bonding strength, in addition, integral structure can ensure that part is made into integration, batch production, to improve the processing efficiency of product, drop
The processing cost of low product.
In any of the above-described technical scheme, it is preferable that have between the lower surface of stop block and the upper surface of positioning workpiece
First gap, the maximum compression length of the first spring is more than the first gap.
In the technical scheme, there is the first gap, first between the lower surface of stop block and the upper surface of positioning workpiece
The maximum compression length of spring is more than the first gap, it is ensured that the maximum of the first spring is more than the first gap by decrement, it is ensured that
It is that the lower surface of stop block touches the upper surface for positioning workpiece first at one selected.
In any of the above-described technical scheme, it is preferable that have the between the lower surface of positioning workpiece and the second adjustment workpiece
Two gaps, the maximum compression length of second spring is more than the second gap.
In the technical scheme, positioning between the lower surface of workpiece and the second adjustment workpiece has the second gap, the second bullet
The maximum compression length of spring is more than the second gap, it is ensured that the maximum of second spring is more than the second gap by decrement, it is ensured that two
It is that the lower surface for positioning workpiece touches the second adjustment workpiece first during selected position.
In any of the above-described technical scheme, it is preferable that the maximum compression length of the first spring is more than the first gap and second
Gap sum.
In the technical scheme, the maximum compression length of the first spring is more than the first gap and the second gap sum, it is ensured that
Before a selected position and two selected positions when being compressed twice, the first spring has enough by decrement, and then ensure that
Block selecting push rod can inwardly move enough distances.
In any of the above-described technical scheme, it is preferable that positioned at the second adjustment outer workpiece first adjusts the transversal of workpiece
Face is hexagon；And/or the cross section of the second adjustment workpiece between the first spacing ring and the second spacing ring is hexagon.
In the technical scheme, the partial cross sectional of the part of the first adjustment workpiece and the second adjustment workpiece is set to six
Side shape, so when adjusting the first adjustment workpiece and the second adjustment workpiece precession and screwing out, the outer surface of hexagon helps to apply
Plus plus load is selected the helical position of the first adjustment workpiece or the second adjustment workpiece, the cross section of hexagon compared to
The cross section of cylinder can have bigger frictional force in precession or back-out, facilitate user to be operated.
Second purpose of the invention, the invention provides a kind of speed changer, with first aspect any embodiment
The shifting detent mechanism of offer, therefore, there is the speed changer that embodiments of the invention are provided first aspect any embodiment to carry
Whole beneficial effects of the shifting detent mechanism of confession, it is numerous to list herein.
Additional aspect of the invention and advantage will be given in following description section, partly by from following description
In become obvious, or by it is of the invention practice recognize.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 illustrates the structural representation of the shifting detent mechanism of one embodiment of the present of invention offer；
Fig. 2 illustrates another structural representation of the shifting detent mechanism of one embodiment of the present of invention offer.
Reference：
Wherein, the corresponding relation in Fig. 1 and Fig. 2 between reference and component names is：
10 matrixes, 102 boss, 20 block selecting push rods, 202 stop blocks, 30 first adjustment workpiece, 302 first is spacing
Ring, 40 first springs, 50 second adjustment workpiece, 502 second spacing rings, 60 positioning workpiece, 70 second springs.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied to be further described in detail the present invention.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from mode described here using other, therefore, protection scope of the present invention does not receive following public tool
The limitation of body embodiment.
Shifting detent mechanism and the change for providing according to one embodiment of present invention are described referring to Fig. 1 and Fig. 2
Fast device.
As depicted in figs. 1 and 2, embodiments in accordance with the present invention provide a kind of shifting detent mechanism, for speed changer,
Shifting detent mechanism includes：Matrix 10, one end of matrix 10 has first through hole；Block selecting push rod 20, in matrix 10
Portion, one end of block selecting push rod 20 reaches the outside of matrix 10 by first through hole；First adjustment workpiece 30, the first adjustment workpiece
30 one end is extend into the blind hole inside block selecting push rod 20, has the first spacing ring on the other end of the first adjustment workpiece 30
302, matrix 10 is resisted against on the first spacing ring 302 away from one end of first through hole；First spring 40, positioned at the first adjustment workpiece
Between 30 and block selecting push rod 20, one end of the first spring 40 is set on the first adjustment workpiece 30, the other end of the first spring 40
It is resisted against the end of blind hole；Wherein, stop block 202 is provided with the outer wall of block selecting push rod 20, stop block 202 is located at matrix 10
Inside, moved to outside matrix 10 for limiting the block selecting push rod 20 inside the stop block 202.
The shifting detent mechanism that the present invention is provided includes matrix 10, block selecting push rod 20, the first adjustment workpiece 30 and first
Spring 40, one end of block selecting push rod 20 is stretched out from the first through hole of the end of matrix 10, is internally provided with the blind hole of the other end
First spring 40, the first spring 40 is adapted with the inwall of blind hole, and the first spring 40 is set in the first adjustment workpiece 30
On one end, after the adjustment workpiece 30 of block selecting push rod 20 and first is assembled, the adjustment workpiece 30 of block selecting push rod 20 and first is installed to
Between the first spring 40 can due to the pressure for being given block selecting push rod 20 outside by compression, and on the outer wall of block selecting push rod 20 set
There is stop block 202, stop block 202 limits the trend that block selecting push rod 20 continues to move out, and block selecting push rod 20 is limited to base
The ultimate range of the external movement of body 10 is limited so that the highest distance position that block selecting push rod 20 can be moved to is a points in Fig. 2
Place, the initial alignment for so having allowed for shifting detent mechanism will not be influenceed by spring pressure, block selecting push rod 20 away from
The initial position of the position that the end face of matrix 10 reaches as shifting detent mechanism, and the starting force of shifting detent mechanism
Square is then that the compressed shape variable being mounted between the adjustment workpiece 30 of block selecting push rod 20 and first by the first spring 40 is determined, when the
The deformation quantity that one spring 40 is compressed is big, i.e. when the first spring 40 is big to the active force of block selecting push rod 20；When the quilt of the first spring 40
The deformation quantity of compression is small, i.e. the first spring 40 can obtain torque not of uniform size to the active force hour of block selecting push rod 20, this
When the distance between workpiece 30 and blind hole bottom surface can be adjusted come right by the size or adjustment first that adjust the first spring 40
Initial torque is adjusted, which achieves initial alignment and the separate operation of initial torque, it is ensured that initial torque is adjusted not
Initial alignment size is influenced whether, different user is met to realizing the requirement of adjustment block selecting torque, the comfortable of product is improve
Property.
In one embodiment of the invention, it is preferable that respectively in the periphery and matrix 10 of the first adjustment workpiece 30
Screw thread is provided with wall, makes to be attached by screw thread between the first adjustment workpiece 30 and the axially facing surface of matrix 10.
In this embodiment, screw thread is provided with the inwall of the periphery of the first adjustment workpiece 30 and matrix 10 respectively, is made
Obtain and be attached by screw thread between the first adjustment workpiece 30 and the axially facing surface of matrix 10, can be now the first adjustment work
Directly it is connected through a screw thread between part 30 and matrix 10, or by with spiral shell between the first adjustment workpiece 30 and matrix 10
The spline of line is attached, and so all ensure that in the case where shifting detent mechanism various components inside is not destroyed, and only needs
Connection screw thread precession or back-out be can be achieved with into the control to the decrement of the first spring 40, then realized to initial torque
Control, by such design structure, it is ensured that in the case where part need not be changed, complete changing for initial torque
Become, save cost, improve the market competition of product.
In one embodiment of the invention, it is preferable that also include：Second adjustment workpiece 50, positioned in matrix 10 and the
Between one adjustment workpiece 30, it is provided with the outboard sidewalls of the second tune workpiece and is mutually fitted with the first adjustment workpiece 30 and matrix 10
The screw thread matched somebody with somebody, and second adjustment workpiece 50 lateral wall on be provided with the second spacing ring 502 so that the end of matrix 10 against
Abut on the second spacing ring 502 and then indirectly on the first spacing ring 302；Positioning workpiece 60, one end has the second through hole,
Second through hole is adapted with the outer wall of block selecting push rod 20, block selecting push rod 20 is passed through the second through hole；Second spring 70, is set in choosing
Keep off on the outer wall of push rod 20, and between block selecting push rod 20 and positioning workpiece 60, one end of second spring 70 is resisted against second
On adjustment workpiece 50, the other end of second spring 70 is resisted against on the inwall of positioning workpiece 60.
In this embodiment, shifting detent mechanism also includes the second adjustment workpiece 50, positions workpiece 60 and second spring
70, second adjustment workpiece 50 is arranged on matrix 10 and first adjustment workpiece 30 between, and respectively with first adjustment workpiece 30 and
Matrix 10 is attached by screw thread, and positioning workpiece 60 is set on the outer wall of block selecting push rod 20 by the second through hole, in block selecting
Be provided with second spring 70 between push rod 20 and positioning workpiece 60, positioning workpiece 60 is limited in the interior of matrix 10, can by
Limit element is set on inwall, or the inwall of matrix 10 is arranged to the conical surface, it is also possible to play limitation positioning workpiece 60 after
Continuous to travel forward, when the stop block 202 on block selecting push rod 20 moves to the position of positioning workpiece 60, positioning workpiece 60 will be limited
The motion of block 202 stopped, now needs to overcome the first spring 40 and second spring 70 if needing to travel forward again
Elastic force, this operation power for allowing for gear selecting is presented peak value to be increased so that user substantially experiences and the no longer phase of active force before
Together, without being further continued for propulsion block selecting push rod 20, a selected position of shifting detent mechanism is realized, the position of a selected position is such as
In Fig. 2 shown in b points, and a change for selecting torque is then had influence on to the power that the first spring 40 is compressed, which achieves a choosing
The separate operation that positioning selects torque with one a, it is ensured that when bit selecting is put, torque adjustment does not interfere with one and selects location dimension；And select
Gearshift positioning mechanism continues to overcome the elastic force of the first spring 40 and second spring 70 to advance, now two select torque by the first spring
40 and second spring 70 constitute simultaneously, two selected positions are then defined by speed changer, that is, block selecting push rod 20 is advanced to base
Ultimate range in body 10, the position of a selected position realizes two selected positions and two and selects torque simultaneously as shown in c points in Fig. 2, also
Separate operation, it is ensured that when two bit selectings are put, torque adjustment does not interfere with two and selects location dimension.
In one embodiment of the invention, it is preferable that the distance of the bottom of the 20 to the first spring of block selecting push rod 40 more than etc.
In block selecting push rod 20 away from the first adjustment workpiece 30 end face the distance between to the outer face of matrix 10.
In this embodiment, the distance of the bottom of the 20 to the first spring of block selecting push rod 40 more than or equal to block selecting push rod 20 away from the
The end face of one adjustment workpiece 30 is the distance between to the outer face of matrix 10 so that block selecting push rod 20 when being pushed into, its bottom surface
It is not to be stopped by the first adjustment workpiece 30 first, it is ensured that block selecting push rod 20 will not be adjusted in 10 internal motion of matrix by first
Whole workpiece 30 is limited.
In one embodiment of the invention, it is preferable that have what is protruded to centerline direction on the madial wall of matrix 10
Boss 102, positioning workpiece 60 is ridden upon on boss 102 away from one end of the second through hole.
In this embodiment, there is the boss 102 protruded to centerline direction on the madial wall of matrix 10 so that positioning
One end of workpiece 60 is ridden upon on boss 102, it is ensured that positioning workpiece 60 will not be moved to the orientation of stop block 202 so that one
Select position location constant.
In one embodiment of the invention, it is preferable that stop block 202 is integral type structure with block selecting push rod 20；And/or
First spacing ring 302 and the first adjustment workpiece 30 are integral type structure；And/or second spacing ring 502 and the second adjustment workpiece 50
It is integral type structure.
In this embodiment, by respectively by stop block 202 and block selecting push rod 20, the first spacing ring 302 and the first adjustment work
Part 30, the second spacing ring 502 and the second adjustment workpiece 50 are set to integral structure, because the mechanical property of integral structure
It is good, it is thus possible to improve bonding strength, in addition, integral structure can ensure that part is made into integration, batch production, to improve product
The processing efficiency of product, reduces the processing cost of product.
In one embodiment of the invention, it is preferable that as shown in figure 1, the lower surface of stop block 202 and positioning workpiece 60
Upper surface between there is the first gap h, the maximum compression length of the first spring 40 is more than the first gap h.
In this embodiment, there is the first gap h between the upper surface of the lower surface of stop block 202 and positioning workpiece 60,
The maximum compression length of the first spring 40 is more than the first gap h, it is ensured that the maximum of the first spring 40 is more than between first by decrement
Gap h, it is ensured that at one selected, is that the lower surface of stop block 202 touches the upper surface for positioning workpiece 60 first.
In one embodiment of the invention, it is preferable that between the lower surface of positioning workpiece 60 and the second adjustment workpiece 50
With the second gap, the maximum compression length of second spring 70 is more than the second gap.
In this embodiment, there is the second gap, second between the lower surface of positioning workpiece 60 and the second adjustment workpiece 50
The maximum compression length of spring 70 is more than the second gap, it is ensured that the maximum of second spring 70 is more than the second gap by decrement, really
It is that the lower surface for positioning workpiece 60 touches the second adjustment workpiece 50 first when having protected two selected.
In one embodiment of the invention, it is preferable that the maximum compression length of the first spring 40 more than the first gap with
Second gap sum.
In this embodiment, the maximum compression length of the first spring 40 is more than the first gap and the second gap sum, it is ensured that
Before a selected position and two selected positions when being compressed twice, first spring 40 has enough by decrement, and then ensures
Block selecting push rod 20 can inwardly move enough distances.
In one embodiment of the invention, it is preferable that the first adjustment workpiece 30 outside the second adjustment workpiece 50
Cross section be hexagon；And/or the second adjustment workpiece 50 between the first spacing ring 302 and the second spacing ring 502
Cross section is hexagon.
In this embodiment, the partial cross sectional of the part of the first adjustment workpiece 30 and the second adjustment workpiece 50 is set to
Hexagon, so when adjusting the first adjustment workpiece 30 and second adjustment precession of workpiece 50 and screwing out, the outer surface of hexagon has
Help applying plus load to select the helical position of the first adjustment adjustment workpiece 50 of workpiece 30 or second, the horizontal stroke of hexagon
Compared to cylindrical cross section in precession or back-out, surface can have bigger frictional force, facilitate user to be grasped in section
Make.
Second purpose of the invention, the invention provides a kind of speed changer, with first aspect any embodiment
The shifting detent mechanism of offer, therefore, there is the speed changer that embodiments of the invention are provided first aspect any embodiment to carry
Whole beneficial effects of the shifting detent mechanism of confession, it is numerous to list herein.
In the description of this specification, term " on ", the orientation of the instruction such as D score or position relationship be based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify and describe, rather than indicating or imply signified device
Or element with specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention；
Term " connection ", " installation ", " fixation " etc. all should be interpreted broadly, for example, " connection " can be fixedly connected, or can
Dismounting connection, or be integrally connected；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.For this area
For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be as the case may be understood.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that the specific features, structure, material or the feature that are described with reference to the embodiment or example are contained in of the invention at least one real
In applying example or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or reality
Example.And, the specific features of description, structure, material or feature can in one or more any embodiments or example with
Suitable mode is combined.
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of shifting detent mechanism, for speed changer, it is characterised in that the shifting detent mechanism includes：
Matrix, one end of described matrix has first through hole；
Block selecting push rod, positioned at the inside of described matrix, one end of the block selecting push rod is reached described by the first through hole
The outside of matrix；
First adjustment workpiece, one end of the first adjustment workpiece is extend into the blind hole inside the block selecting push rod, and described the
There is the first spacing ring on the other end of one adjustment workpiece, described matrix is resisted against described the away from one end of the first through hole
On one spacing ring；
First spring, between the described first adjustment workpiece and the block selecting push rod, one end of first spring is set in
On the first adjustment workpiece, the other end of first spring is resisted against the end of the blind hole；
Wherein, stop block is provided with the outer wall of the block selecting push rod, the stop block is located at the inside of described matrix, is used for
Limitation is outside the block selecting pushrod movement to the described matrix inside the stop block.
2. shifting detent mechanism according to claim 1, it is characterised in that
Screw thread is provided with the inwall of the periphery of the described first adjustment workpiece and described matrix respectively, makes the first adjustment work
It is attached by screw thread between part and the axially facing surface of described matrix.
3. shifting detent mechanism according to claim 1 and 2, it is characterised in that also include：
Second adjustment workpiece, positioned between described matrix and the first adjustment workpiece, adjusts inside and outside workpiece described second
The screw thread being adapted with the described first adjustment workpiece and described matrix is provided with the wall of side, and in the described second adjustment workpiece
The second spacing ring is provided with lateral wall so that the end of described matrix is resisted against on second spacing ring and then supports indirectly
Come on first spacing ring；
Positioning workpiece, one end has the second through hole, and second through hole is adapted with the outer wall of the block selecting push rod, makes the choosing
Gear push rod passes through second through hole；
Second spring, is set on the outer wall of the block selecting push rod, and between the block selecting push rod and the positioning workpiece,
One end of the second spring is resisted against on the second adjustment workpiece, and the other end of the second spring is resisted against the positioning
On the inwall of workpiece.
4. shifting detent mechanism according to claim 3, it is characterised in that
The block selecting push rod is adjusted more than or equal to the block selecting push rod to the distance of first spring bottom end away from described first
The end face of workpiece is the distance between to the outer face of described matrix.
5. shifting detent mechanism according to claim 4, it is characterised in that
There is the boss protruded to centerline direction, the positioning workpiece is away from second through hole on the madial wall of described matrix
One end ride upon on the boss.
6. shifting detent mechanism according to claim 5, it is characterised in that
The stop block is integral type structure with the block selecting push rod；And/or
First spacing ring is integral type structure with the described first adjustment workpiece；And/or
Second spacing ring is integral type structure with the described second adjustment workpiece.
7. shifting detent mechanism according to claim 6, it is characterised in that
There is the first gap, first spring is most between the upper surface of the lower surface of the stop block and the positioning workpiece
Big reduction length is more than first gap.
8. shifting detent mechanism according to claim 7, it is characterised in that
There is the second gap, the maximum of the second spring between the lower surface of the positioning workpiece and the second adjustment workpiece
Reduction length is more than second gap.
9. shifting detent mechanism according to claim 8, it is characterised in that
The maximum compression length of first spring is more than first gap and second gap sum.
10. the shifting detent mechanism according to any one of claim 4 to 9, it is characterised in that
Cross section positioned at the first adjustment workpiece of the described second adjustment outer workpiece is hexagon；And/or
The cross section of the second adjustment workpiece between first spacing ring and second spacing ring is hexagon.
11. a kind of speed changers, it is characterised in that including the shifting detent mechanism any one of claim 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710179373.3A CN106763744B (en) | 2017-03-23 | 2017-03-23 | Shifting positioning mechanism and speed changer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710179373.3A CN106763744B (en) | 2017-03-23 | 2017-03-23 | Shifting positioning mechanism and speed changer |
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| Publication Number | Publication Date |
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| CN106763744A true CN106763744A (en) | 2017-05-31 |
| CN106763744B CN106763744B (en) | 2019-06-25 |
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| CN201710179373.3A Active CN106763744B (en) | 2017-03-23 | 2017-03-23 | Shifting positioning mechanism and speed changer |
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| CN (1) | CN106763744B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106763744B (en) | 2019-06-25 |
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