CN208804217U - A kind of control structure of selector fork - Google Patents

A kind of control structure of selector fork Download PDF

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Publication number
CN208804217U
CN208804217U CN201821006294.9U CN201821006294U CN208804217U CN 208804217 U CN208804217 U CN 208804217U CN 201821006294 U CN201821006294 U CN 201821006294U CN 208804217 U CN208804217 U CN 208804217U
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CN
China
Prior art keywords
shift fork
deep gouge
open slot
main body
shift
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CN201821006294.9U
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Chinese (zh)
Inventor
张敏
袁立立
伍超军
钱清
管伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU DONGFENG JINGCHONG ENGINEERING Co Ltd
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SUZHOU DONGFENG JINGCHONG ENGINEERING Co Ltd
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Priority to CN201821006294.9U priority Critical patent/CN208804217U/en
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Abstract

The utility model provides a kind of shifting precision of its certifiable total of the control structure of selector fork, and radial extension is small, reasonable Arrangement convenient for gearbox.It includes shift fork axle, interlock, several selector forks, the input coupling part of several selector forks is set in the shift fork axle, the input coupling part of the selector fork is correspondingly arranged on the shift fork frid of axial length arrangement, each shift fork frid is arranged in the different radial positions of shift fork axle, the corresponding axial extension position that all shift fork frids correspond to the shift fork axle is respectively arranged with shift fork groove, the interlock is set in the regional location of shift fork groove corresponding to the shift fork groove, the interlock includes annular convex platform, the annular convex platform locks corresponding shift fork frid by clamping shift fork groove, the interlock further includes having the open slot for being set to surface, and it is set to the guiding deep gouge on through hole inner wall.

Description

A kind of control structure of selector fork
Technical field
The utility model relates to the technical field of vehicle transmission, specially a kind of control structure of selector fork.
Background technique
Existing speed-changer operation technology, shift fork axle and selector fork correspond arrangement, make the number of shift fork axle Measure it is more so that space required for speed changer is big;After a piece shift fork axle of appearance corresponds to the technology of multiple selector forks, need Mutual interlocking gear is set, however the combination of existing mutual interlocking gear and shift fork axle and to occupy radial area big, and shifting precision is not It is high.
Summary of the invention
In view of the above-mentioned problems, the utility model provides a kind of control structure of selector fork, total can guarantee Shifting precision, and radial extension is small, reasonable Arrangement convenient for gearbox.
A kind of control structure of selector fork, it is characterised in that: it includes shift fork axle, interlock, several selector forks, The input coupling part of several selector forks is set in the shift fork axle, the input interconnecting piece of the selector fork Divide the shift fork frid for being correspondingly arranged on axial length arrangement, each shift fork frid is arranged in the radial positions of difference of shift fork axle It sets, the corresponding axial extension position that all shift fork frids correspond to the shift fork axle is respectively arranged with shift fork groove, described mutual Locking device is set in the regional location of shift fork groove corresponding to the shift fork groove, and the interlock includes convex annular Platform, the annular convex platform lock corresponding shift fork frid by clamping shift fork groove, and the interlock further includes setting The guiding deep gouge for being placed in the open slot on surface and being set on through hole inner wall, the shift fork axle correspond to open slot, guiding It is provided with the shift extended radially through in the length areas of deep gouge to refer to, the reversal means referred to of shifting gears is located at corresponding open slot region Interior, the bottom referred to of shifting gears is located in the region of corresponding guiding deep gouge, and the reversal means thickness referred to of shifting gears is no more than any The thickness of shift fork frid.
It is typically characterized by:
The corresponding position of the annular convex platform is additionally provided with axial limit structure, and the card slot of the axial limit structure blocks The side convex portion of the annular convex platform, it is ensured that the axial position of interlock is fixed reliable;
The interlock includes the class annulus main body with axial length, the axial centre setting of the class annulus main body There is through hole, the through hole is set in the shift fork axle, and the outer ring surface of the class annulus main body corresponds to axial length direction One at be provided with the annular convex platform of evagination, the outer surface of the class annulus main body is additionally provided with open slot, the open slot edge The outer surface of class annulus main body length direction arrangement, the annular convex platform correspond to the open slot position be sky, institute It states and is additionally provided with guiding deep gouge on the inner wall of the through hole of class annulus main body, convex portion is protruded into described under the bottom referred to of shifting gears It is oriented in deep gouge, the length of the guiding deep gouge covers the projection section of the length of the open slot, and the open slot is connected to institute Through hole is stated, the guiding deep gouge is connected to the through hole;
The shift fork axle corresponds to open slot, is provided with one and extends radially through hole in the length areas for being oriented to deep gouge, described Shift refers to that inserting extends radially through in hole described in being positioned at, and the reversal means referred to of shifting gears is convex, convex under the bottom referred to of shifting gears, really Being responsible to replace the both ends for keeping off and referring to can guide-localization;
Another region of radial direction corresponding to the open slot of the class annulus main body is provided with side convex portion, and the side is convex Partial inner wall is recessed the guiding deep gouge;
When the form of the class annulus main body is annulus form, the diameter corresponding to the open slot of the class annulus main body Inner wall thickness direction indent, the formation guiding deep gouge to another region;
The length of the guiding deep gouge is equal to the axial length of class annulus main body;
The width of the guiding deep gouge corresponds to the width arrangement of convex portion under the bottom shifted gears and referred to;
The both ends of the open slot are that flat mouth ends end, is specially opening square groove, ensure the upper lobes position referred to of shifting gears The axial movement set is accurate and reliable;
The annular convex platform is located at the medium position part of the axial length of the class annulus main body, it is ensured that logical when installation The property used.
After the utility model, mutual interlocking gear is directly sleeved in shift fork axle, and outside the upper lobes that shift is referred to It is convex that in open slot, under the bottom referred to that ensures to shift gears simultaneously, convex portion is located at the corresponding region of guiding deep gouge, so that open slot, Deep gouge is oriented in entire shift process, guiding role can be played, the shifting precision of certifiable total, and due to The class annulus ontology of mutual interlocking gear is directly sleeved in shift fork axle, and raised maximum gauge is only the outer surface of annular convex platform, Radial extension is small, reasonable Arrangement convenient for gearbox;It specifically has the beneficial effect that 1 realizes interlocking by an Element Design Function, design is compact, small to the requirement of gearbox steric requirements, is more suitable for current horizontal, longitudinal Gearbox design thinking;2, it realizes Interlock function need to only design card slot on interlock shell, and matching design is simple, and dimension chain checks few, saving design week Phase;3, interlock design reversal means square groove, integrated shift guiding, reduce the matching design of shell, reduce manufacture, assembly misses Difference, it is more smooth that interlock function is more precisely, shift is oriented to slide piece;4, the mutual interlocking gear is integrated in a part, cooperates housing design Limiting slot reduces interlocking features and designs and develops quantity, can reduce product development cost;5, the mutual interlocking gear is integrated in one A part reduces the matching relationship of other parts, simplifies assembly difficulty, improves assembly beat, reduces gearbox production cost;6, Amount of parts is reduced, the weight of gear shift mechanism is reduced, meets gearbox light-weight design;7, interlock assembly letter Easily, interlocking features quantity is reduced, the shop 4S part management cost is reduced, reduces market maintenance cost;8, interlock assembly letter Easily, mating parts are few, reduce assembly complexity, reduce the shop 4S personnel and understand difficulty, safeguard convenient for gearbox market.
Detailed description of the invention
Fig. 1 is the three-dimensional figure structure schematic representation of specific embodiment of the utility model;
Fig. 2 is the three-dimensional figure structure schematic representation of the interlock of the utility model;
The vertical view figure structure schematic representation (removal axial limit structure) that Fig. 3 is Fig. 1;
Fig. 4 is selected into one or two grades of shift forks for selector fork control mechanism and cuts open structural schematic diagram corresponding to the A-A of Fig. 3;
Fig. 5 is selected into three fourth gear shift forks for selector fork control mechanism and cuts open structural schematic diagram corresponding to the A-A of Fig. 3;
Fig. 6 is selected into five reverse speed forks for selector fork control mechanism and cuts open structural schematic diagram corresponding to the A-A of Fig. 3;
Title corresponding to serial number is as follows in figure:
Shift fork axle 1, class annulus main body 21, annular convex platform 3, open slot 4, through hole 5, guiding deep gouge 6, is changed interlock 2 Gear refers to 7, reversal means 8, bottom 9, side convex portion 10, a second gear shift fork 11, three fourth gear shift forks 12, five back forks 13, one or two retaining grooves Plate 14, three or four retaining groove plates 15, five reverse gear frid 16, shift fork groove 17, axial limit structure 18.
Specific embodiment
A kind of control structure of selector fork, is shown in Fig. 1-Fig. 6: it includes shift fork axle 1, interlock 2, several shifts group Fork, the input coupling part of several selector forks are set in shift fork axle 1, and the input coupling part correspondence of selector fork is set It is equipped with the shift fork frid of axial length arrangement, each shift fork frid is arranged in the different radial positions of shift fork axle 2, all shift forks The corresponding axial extension position that frid corresponds to shift fork axle 2 is respectively arranged with shift fork groove 17, and it is recessed that interlock 2 is set in shift fork The regional location of shift fork groove corresponding to slot 1, interlock 2 include annular convex platform 3, and annular convex platform 3 is dialled by clamping Fork groove 17 locks corresponding shift fork frid, and interlock 2 further includes having the open slot for being set to surface 4 and being set to Guiding deep gouge 6 on 5 inner wall of through hole, shift fork axle 1 correspond to open slot 4, be oriented to deep gouge 6 length areas on be provided with radial direction Perforative shift refers to 7, and shift refers to that 7 reversal means 8 is located in corresponding 4 region of open slot, and the bottom 9 for referring to 7 of shifting gears is positioned at corresponding It is oriented in the region of deep gouge 6, shift refers to that 7 reversal means thickness is not more than the thickness of any shift fork frid.
The corresponding position of annular convex platform 3 is additionally provided with axial limit structure 18, and the card slot of axial limit structure 18 blocks ring The side convex portion of shape boss 3, it is ensured that the axial position of interlock 2 is fixed reliable;
Interlock 2 includes the class annulus main body 21 with axial length, and the axial centre of class annulus main body 21 is provided with Through hole 5, through hole 5 are set in shift fork axle 1, and the outer ring surface of class annulus main body 21, which corresponds at the one of axial length direction, to be arranged There is the annular convex platform 3 of evagination, the outer surface of class annulus main body 21 is additionally provided with open slot 4, and open slot 4 is along class annulus main body 21 Outer surface length direction arrangement, annular convex platform 3 correspond to open slot 4 position be sky, the through hole 5 of class annulus main body 21 Inner wall on be additionally provided with guiding deep gouge 6, shift refers to that the 7 lower convex portion in bottom 9 is protruded into guiding deep gouge 6, guiding deep gouge 6 Length covers the projection section of the length of open slot 4, and open slot 4 is connected to through hole 5, and guiding deep gouge 6 is connected to through hole 5;
Shift fork axle 1 corresponds to open slot 4, is provided with one and extends radially through hole in the length areas for being oriented to deep gouge 6, and shift refers to 7 insertings are positioned at and extend radially through in hole, and shift refers to that 7 reversal means 8 is convex, and shift refers to convex under 7 bottom 9, it is ensured that shift refers to 7 It both ends can guide-localization;
4 radial another regions corresponding to open slot of class annulus main body 21 are provided with side convex portion 10, side convex portion 10 Inner wall be recessed guiding deep gouge 6;
When the form of class annulus main body 21 is annulus form, the radial direction corresponding to open slot 4 of class annulus main body 21 is another The inner wall thickness direction indent in region forms guiding deep gouge 6;
The length for being oriented to deep gouge 6 is equal to the axial length of class annulus main body 21;
The width of guiding deep gouge 6 corresponds to the width arrangement that shift refers to the 7 lower convex portion in bottom 9;
The both ends of open slot 4 are that flat mouth ends end, is specially opening square groove, and ensure to shift gears the upper lobes position referred to It is axially moved accurate and reliable;
Annular convex platform 3 is located at the medium position part of the axial length of class annulus main body 21, it is ensured that versatility when installation.
In specific embodiment, there are three selector forks, a specially second gear shift fork 11, three fourth gear to dial for suit in shift fork axle 1 12, five back forks 13 are pitched, have respectively corresponded a second gear frid 14, three or four retaining groove plates 15, five reverse gear frid 16, a second gear Frid 14, three or four retaining groove plates 15, five frid 16 that reverses gear are respectively arranged different radial positions in shift fork axle 1, all fork slots The axial length position setting that plate corresponds to shift fork axle 1 is respectively arranged with shift fork groove 17, and interlock 2 is set in shift fork The regional location of shift fork axle 1 corresponding to groove 17.
Its working principles are as follows: the selector fork and interlock empty set of three gears are in shift fork axle;On interlock Equipped with the through hole passed through for shift fork axle;Interlock is equipped with opening square groove, guiding deep gouge and annular convex platform;Shift fork axle passes through The through hole of interlock, the reversal means referred to of shifting gears and bottom are stuck in opening square groove and guiding deep gouge;On each fork slot It is equipped with shift fork groove, when neutral position, only one shift fork groove is aligned with reversal means, and the groove of other gears is stuck in convex annular On platform, interlocking is realized;
Mutual interlocking gear is directly sleeved in shift fork axle, and the upper lobes that refer to of shift is made to externally protrude out in open slot, simultaneously really It is responsible to replace the corresponding region that convex portion under the bottom that gear refers to is located at guiding deep gouge, so that open slot, guiding deep gouge are entirely changing During gear, guiding role can be played, can guarantee the shifting precision of total, and due to the class annulus of mutual interlocking gear Ontology is directly sleeved in shift fork axle, and raised maximum gauge is only the outer surface of annular convex platform, and radial extension is small, is convenient for becoming The reasonable Arrangement of fast case.
Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created Preferred embodiment should not be construed as limiting the practical range of the utility model creation.All create according to the utility model is applied All the changes and improvements made by range etc., shall still fall within the scope of this patent.

Claims (10)

1. a kind of control structure of selector fork, it is characterised in that: it includes shift fork axle, interlock, several selector forks, if The input coupling part for doing the selector fork is set in the shift fork axle, the input coupling part of the selector fork It is correspondingly arranged on the shift fork frid of axial length arrangement, each shift fork frid is arranged in the different radial positions of shift fork axle, The corresponding axial extension position that all shift fork frids correspond to the shift fork axle is respectively arranged with shift fork groove, the interlocking dress The regional location for being set in shift fork groove corresponding to the shift fork groove is set, the interlock includes annular convex platform, institute It states annular convex platform and locks corresponding shift fork frid by clamping shift fork groove, the interlock further includes being set to table The open slot in face and the guiding deep gouge being set on through hole inner wall, the shift fork axle correspond to open slot, are oriented to deep gouge It is provided with the shift extended radially through in length areas to refer to, the reversal means referred to of shifting gears is located in corresponding open slot region, described The bottom referred to shift gears in the region of corresponding guiding deep gouge, the reversal means thickness referred to of shifting gears is no more than any shift fork frid Thickness.
2. a kind of control structure of selector fork as described in claim 1, it is characterised in that: the correspondence position of the annular convex platform It sets and is additionally provided with axial limit structure, the card slot of the axial limit structure blocks the side convex portion of the annular convex platform.
3. a kind of control structure of selector fork as described in claim 1, it is characterised in that: the interlock includes having The class annulus main body of axial length, the axial centre of the class annulus main body are provided with through hole, and the through hole is set in institute State shift fork axle, the outer ring surface of the class annulus main body correspond to axial length direction one at be provided with the annular convex platform of evagination, The outer surface of the class annulus main body is additionally provided with open slot, the open slot along the outer surface of class annulus main body length side To arrangement, the annular convex platform corresponds to the position of the open slot for sky, on the inner wall of the through hole of the class annulus main body It is additionally provided with guiding deep gouge, convex portion is protruded into the guiding deep gouge under the bottom referred to of shifting gears, the length of the guiding deep gouge Degree covers the projection section of the length of the open slot, and the open slot is connected to the through hole, and the guiding deep gouge is connected to institute State through hole.
4. a kind of control structure of selector fork as described in claim 1, it is characterised in that: the shift fork axle corresponds to opening Slot is oriented to and is provided with one in the length areas of deep gouge and extends radially through hole, and the shift refers to that inserting is positioned at described extend radially through In hole, the reversal means referred to of shifting gears is convex, convex under the bottom referred to of shifting gears.
5. a kind of control structure of selector fork as claimed in claim 3, it is characterised in that: the correspondence of the class annulus main body Another region of the radial direction of the open slot is provided with side convex portion, it is heavy that the inner wall of the side convex portion is recessed the guiding Slot.
6. a kind of control structure of selector fork as claimed in claim 3, it is characterised in that: the form of the class annulus main body When for annulus form, in the inner wall thickness direction corresponding to another region of radial direction of the open slot of the class annulus main body Recessed, the formation guiding deep gouge.
7. a kind of control structure of selector fork as claimed in claim 3, it is characterised in that: the length etc. of the guiding deep gouge In the axial length of class annulus main body.
8. a kind of control structure of selector fork as claimed in claim 1 or 3, it is characterised in that the width of the guiding deep gouge Width arrangement corresponding to convex portion under the bottom shifted gears and referred to.
9. a kind of control structure of selector fork as claimed in claim 1 or 3, it is characterised in that: the both ends of the open slot End end for flat mouth, be specially opening square groove.
10. a kind of control structure of selector fork as claimed in claim 1 or 3, it is characterised in that: the annular convex platform is located at The medium position part of the axial length of the class annulus main body.
CN201821006294.9U 2018-06-28 2018-06-28 A kind of control structure of selector fork Active CN208804217U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821006294.9U CN208804217U (en) 2018-06-28 2018-06-28 A kind of control structure of selector fork

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Application Number Priority Date Filing Date Title
CN201821006294.9U CN208804217U (en) 2018-06-28 2018-06-28 A kind of control structure of selector fork

Publications (1)

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CN208804217U true CN208804217U (en) 2019-04-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108644379A (en) * 2018-06-28 2018-10-12 苏州东风精冲工程有限公司 A kind of control structure of selector fork

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108644379A (en) * 2018-06-28 2018-10-12 苏州东风精冲工程有限公司 A kind of control structure of selector fork

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