CN1004164B - Shifting gear motivator with direct erection - Google Patents
Shifting gear motivator with direct erection Download PDFInfo
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- CN1004164B CN1004164B CN85101340.6A CN85101340A CN1004164B CN 1004164 B CN1004164 B CN 1004164B CN 85101340 A CN85101340 A CN 85101340A CN 1004164 B CN1004164 B CN 1004164B
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Abstract
The present invention provides a shift operating mechanism (10) which is connected with a speed change shift casing assembly (16) of a speed changer. A set of speed change shifts (18, 20, 22 and 24) which can axially move are arranged in the speed change shift casing (14); a shift fork (64) which is arranged in an operator casing (12) rotates around a shift line (68) in a y-y direction; a speed change lever (48) independently rotates around a shaft line (62) in an x-x direction. In a through groove (82), a shifting block offers an effective mutual interlocking mechanism; shift fork drives limit pieces (98) and (100) which are abutted with speed change shifts (18 and 24) arranged at the outer side so that the hand feeling is offered to correctly select the speed change shifts (18 and 24), and the hand feeling is offered to correctly select speed change shifts (20 and 22) by a tilted type spring plunger piston and a concave inclined plane (112).
Description
The present invention is the shift of transmission operating mechanism, generally is also referred to as gear selection mechanism, and this mechanism is used on the manual control speed changer.Characteristics of the present invention be in light weight, easy, cheap, be a kind of shift control mechanism that can directly install.
The gear-shift transmission of manual control sliding gear and/or sliding engaged shell type and the gearshift that is used for the selection gearshift of this speed changer, it is well-known prior art, in recent years, the gearshift of the manual operating speed changer of this sliding gear and/or sliding engaged shell type many improvement had been done.Yet, still need to provide a kind of quite cheap, in light weight, easy gearshift is so that obtain needed variable motion, really know and selected correct gear thereby make operator can obtain a kind of feel, and the movement process that an optimal mechanical benefit and desirable speed change lever can be provided when carrying out the operation of " gear selection " and " gear engagement " at speed change lever.In addition, the present invention also aims to simplify the mutual interlocking gear in the shifter of transmission and improve its reliability, one group of axially movable speed change retaining is arranged in the shifter of transmission, and mutual interlocking gear just makes to have only a speed change retaining to do axial motion in a certain preset time.The reliability and the operating characteristics that improve constantly this class shifter of transmission also are the purposes that people seek always.
Be to simplify the structure of speed change retaining housing assembly and reduce the expense of its manufacturing, it is the speed change retaining of rectangle that people have adopted cross section, also is called flat speed change retaining and speed change lever, and this point by known to everybody, sees also U. S. Patent the 4th, 273, No. 004.
In prior art, the use of the mutual interlocking gear of pin and/or ball-type has been well-known, and these have been included in U. S. Patent the 3rd, 387,501; The the 4th, 120,212 and the 4th, 296, in No. 642.Although these mutual interlocking gears are gratifying, and be not suitable for all types of gearshifts and/or all very complicated often and/or consumes expensive for making and/or installing on function.
When adopting the elastic deformation device to come the speed change lever of manual mechanical transmission, judge whether to choose suitable correct speed change retaining in order to make operator obtain suitable feel, people have adopted general mechanism, this has been known to the public in prior art, can be referring to U. S. Patent the 3rd, 934,485 and 4,022, No. 078, combined this mechanism in these two pieces, although the mechanism that is provided in this class prior art is applicable to some purposes, but it is for manufacturing, arrange and/or operation is complicated and/or wasteful, and/or for having 3,4, or the speed change retaining housing assembly of more a plurality of speed changes retaining, it can not show that clearly described retaining is correct for operator provide reliable feel.
In prior art, referring to above-mentioned U. S. Patent the 4th, 273, No. 004, known in the speed changer of direct change, its gear shift mechanism includes speed change lever or the member roughly the same in the bearing device that directly is installed on the manipulator housing, the speed change retaining engagement that wherein speed change lever is direct and speed changer retaining housing is interior, though the mechanism in this prior art can be applicable to some situation well, but can not be applicable to following situation, as straight type synchrom esh transmission, because require speed change lever steerage gear gear motion (promptly with the ground engagement of synchromesh cover friction type) to compare to the selection campaign of speed change lever steerage gear for this speed changer, bigger benefit mechanically arranged.
The present invention has adopted the shift control mechanism of the basic trnasmission that can directly install, and it has in light weight, simple in structure, advantages of being cheap, thereby overcomes or reduced the shortcoming of prior art.This shift of transmission operating mechanism is suitable especially to keep off the housing assembly logotype with speed change, and one group of quite flat speed change retaining of laying is side by side arranged in this speed change retaining housing assembly, and this operating mechanism can make operator obtain the correctness that a kind of feel definitely confirms block selecting in having the speed change retaining housing assembly of 3 or 4 speed change retainings.This shift of transmission operating mechanism can also provide mechanical advantage respectively for the movement process of speed change lever in " selection gear " and " gear engagement " these two kinds of modes of operation.This shift control mechanism also has a relatively simple for structure and reliable mutual interlocking gear, to prevent that effectively an above speed change retaining breaks away from neutral gear position simultaneously and does displacement.
The advantage of foregoing invention is by being installed on the speed change retaining housing assembly or can pivoting with respect to this housing assembly that " selector fork " member or parts finish.The selector fork member becomes with one group of axle that is close to the flat retaining of arranging side by side of speed change on the horizontal plane to do around the axle motion haply, and each speed change is put down to block and is equipped with a shift fork or other speed change members.Each speed change is blocked a gearshift groove and is meshed with shifting block on the speed change lever, and speed change lever is contained on the axle of selector fork, with the plane of the flat axis almost parallel that keeps off of speed change in do to move around axle.The selector fork parts provide a groove, and along extending with the direction of the flat parallel axes of keeping off of speed change, shifting block is done to be meshed with the gearshift groove of being aimed at around the axle motion in groove.The horizontal width of the groove in the selector fork parts is greater than the transverse gage of a speed change retaining, but transverse gage less than two speed change retainings, therefore only there is a speed change retaining of having aimed at shifting block might leave neutral gear position and does axial motion, thereby a quite simple and effective interlocking structure is provided.
Speed change lever is roughly becoming in a lateral direction motion will make it and selector fork parts do as a whole with the axis of speed change retaining and around the axle motion, is making that the groove on shifting block and the selector fork parts has been aimed at that speed change retaining of being chosen.The working principle of " the selection gear " of Here it is shift of transmission operating mechanism.The motion of speed change lever on the axial direction that is parallel to the speed change retaining will make it, and rotate with respect to speed change retaining housing assembly and selector fork parts together, thereby it is meshed with selected speed change retaining and makes this speed change retaining disengaging neutral gear position and do axial motion by the shifting block that its drives." gear engagement " working principle of shift of transmission manipulation that Here it is.
Since the working principle of " the selection gear " and " gear engagement " of shift control mechanism with around being separated out, independently axis rotation is relevant separately, so shift of transmission is handled and can be designed to that it all has its unique mechanical advantage for each working principle.Generally, concerning operator, the mechanical advantage of wishing this operating process of gear engagement is than the high efficiency of selecting this operating process of gear.All the more so for heavy synchrom esh transmission, as described in the known prior art, in this speed changer, need to use sizable responsive to axial force to block so that carry out friction engagement fully with friction type synchromesh cover in speed change, in addition, owing to and selection gear limited in the indoor space of vehicle drive only need quite little power, so always reduce the shift motion of speed change lever in selecting this operating process of gear usually as far as possible.
The selector fork parts laterally are provided with postive stop baffle on the dual-side relatively at it, in selecting this operating process of gear, when selector fork parts and shift lever assembly sway, one of two speed changes retainings in each baffle plate and the outside contact, make shifting block and groove aim at another outside speed change retaining relative, limit the selector fork parts around the axle motion and can show these two speed changes retainings of correctly having chosen the outside really with this with the outside speed change retaining that contacts.An inclined-plane or step surface are arranged on the selector fork parts, contact with oblique installing type spring-loaded plunger in being contained in speed change retaining housing assembly.Just in time aim at when being positioned at one of inboard speed change retaining when passage and shifting block, the inclined-plane on the selector fork parts just contacts with plunger; The selector fork parts can towards oblique installing type spring-loaded plunger motion make the latter do that flexible inclination is moved until plunger with till step re-entrant angle on being positioned at the selector fork parts contacts, this just shown shifting block and groove be positioned at inboard second speed change and keep off and having aimed at.Preferablely be, when the speed change outside will selecting is kept off with the reversing speed of acquisition speed changer, selector fork needs further to move towards oblique installing type spring-loaded plunger brake component, the oblique installing type spring-loaded plunger will be effectively released speed change lever from the above-mentioned speed change retaining that aligns with it like this, unexpectedly meshes to prevent and to reverse gear.Nature, the angle on the squareness of oblique installing type spring-loaded plunger and/or the inclined-plane that contacts with it can be adjusted so that provide needed feel for operator shift gears.
According to as seen above-mentioned, task of the present invention provide one in light weight, easy, cheap, reliable, the shift of transmission operating mechanism that can directly install, there is a quite simple interlocking structure in this mechanism and can provides separately independently mechanical advantage in the working principle of selecting gear and gear engagement.
Another task of the present invention has provided a shift of transmission operating mechanism that has improved, be particularly suitable for and adopt the speed change retaining housing assembly logotype of flat speed change retaining side by side, said mechanism has a quite simple and reliable mutual interlocking gear, it can adopt separately independently mechanical advantage in gear and these two working principles of gear engagement for selecting, and correctly chooses needed speed change retaining for operator clearly indication is provided.
After reading detailed description of the invention and relevant accompanying drawing, can be clearer and more definite to these and other task and advantage of the present invention.
Brief description of drawings
The partial elevation view of the shift of transmission operating mechanism that Fig. 1-the 4th, the present invention directly install, phantom is analysed and observe along the 1-1 place and is got by Fig. 5.This figure has comprised four positions of " selection gear ".
Figure 1A-4A be from corresponding Fig. 1,2,3 and 4 along 1A-1A, 2A-2A, 3A-3A, 4A-4A line analyse and observe and partial sectional view.
Fig. 5 is the partial side view of gear illustrated among Fig. 1-4.
Fig. 5 A is a partial view, makes broken section, is analysed and observe and gets along 5A-5A by Fig. 4.
Fig. 6 is the partial view of speed change retaining/pull-fork assembly that is used for the speed change retaining housing of shift control mechanism of the present invention.
Fig. 7 is the schematic representation of shift control mechanism of the present invention, the mechanical advantage of the working principle of graphical illustration " selection gear " and " gear engagement ".
Fig. 8 is that speed change lever of the present invention respectively keeps off key plan.
The detailed description of most preferred embodiment
In explanation, adopt some term, but can not limit its meaning at this point most preferred embodiment of the present invention.Term " forward " and " backward " refer to shifter of transmission of the present invention and are installed in direction on the vehicle routinely.Term " makes progress ", " downwards ", " to the right ", " left " refer to the direction up and down in the accompanying drawing.Term " inwardly " and " outwardly " refer to towards or leave the geometrical center of described assembly.On the change justice of those terms that above-mentioned term Jie mentions above releasing and going for especially, on the similar term that also goes for looking like.
The step-by-step variable gear speed changer has sliding type gear type and sliding type to mesh two kinds on cover type, and the sliding type gear type moves selected gear and meshes with other gears; Sliding type engagement cover type is to make constant mesh gear be meshed with a certain axle selectively by axially slidably meshing cover, above-mentioned these two kinds of pattern speed changers have been well-known in prior art, relevant example can be referring to the top U. S. Patent of having mentioned the 4th, 273, No. 004, the 3rd, 387, No. 501 and the 4th, 296, No. 642.In this class speed changer, sliding type gear or engagement cover (not listing) all have a groove, and shift fork or driving lever or other speed change members match with this groove, thereby axial motion is selectively passed to sliding gear or engagement cover.Shift fork or driving lever generally can be axially movable by one or at least the electing property earth's axis drive to the speed change retaining or the speed change lever of motion, speed change retaining and subsidiary shift fork have one be in the axial direction the neutral gear position center or can not displacement and can be from this neutral gear position along axial direction to first, if possible to second position move in case with first and second selected gear engagement if possible.This shows that in such speed changer, speed change retaining and shift fork need a pair of alternative gear and its engagement at least.In general, shifter of transmission has a speed change retaining housing assembly, and it is installed on the speed changer, and generally in case top, being slidably supported one group can axially movable speed change keep off, and each speed change flap has a shift fork to be used to move axially.The shift of transmission operating mechanism be installed on the speed change retaining housing assembly desired axial motion passed to selected that can axially movable speed change retaining.
Shift of transmission operating mechanism 10 of the present invention can be referring to Fig. 1-5.Operating mechanism 10 comprises a manipulator housing 12, and it can be directly installed on the speed change retaining housing 14, and the latter is directly installed on the top of case of transmission (unlisted on the figure).Nature, speed change retaining housing 14 and manipulator housing 12 can be an integral body.Below narration only be problem and usefulness as an illustration, rather than impose any restrictions, speed change retaining housing assembly 16 comprise a speed change retaining housing 14 as the speed changer of 6 forward velocity and a reverse speed and comprise 4 in general cross section be the flat retaining 18,20,22 and 24 of speed change of rectangle, these 4 retainings are in axial sliding in speed change retaining housing 14.Speed change retaining 18 is the speed change retainings that reverse gear, and speed change retaining 20 is speed change retainings of first retaining and second retaining, and speed change retaining 22 is that to be the 5th and the 6th retaining speed changes keep off for the third and fourth retaining speed change retaining and speed change retaining 24.General each speed change flap has one axially to be fixed on shift fork that speed change blocks so that motion or can do axial motion at least together, and this is well-known in prior art.As mentioned above, know that speed changer or gear engagement are to finish by the axial motion that selected speed change retaining leaves electing property of neutral gear position unshift on axial direction, referring to Fig. 5.
As doing more detailed understanding to the structure of typical speed change retaining/pull-fork assembly, see also Fig. 6, described the assembly of speed change retaining 24 and shift fork 26 among the figure in greater detail.Can see that the flat retaining 24 of speed change is to be fastened on rigidly on the shift fork 26 with rivet 28 or other means of fixation, thus speed change keep off 24 and shift fork 26 doing axial motion together forward and on two directions backward.Forward and axial direction backward represent this gearshift of shifter of transmission just or the direction of gear engagement with arrow x-x.Speed change retaining 24 also has speed change retaining 18,20 and 22, each speed change retaining all defines the shifting block groove of a horizontal expansion, also be called selector fork parts groove 30, this groove has two side 32 and 34,32 and 34 to be meshed with shifting block so that needed axial motion passed to the speed change retaining on arrow x-x direction and by the shift fork of its drive.Groove 30 also comprises diapire 33.As seen, speed change retaining 18,20 should be 30A, 30B and 30C mutually with 22 shifting block groove among the figure.Referring to Fig. 5, when all speed change retaining is in neutral gear position, arrangements that be in line of shifting block groove, the shifting block groove can be directly arranged in speed change to be blocked, perhaps also can be located at speed change keep off with member on.Each speed change retaining all has roughly the same cross section, and it highly is shown in 36, and width is shown in 38.
A neutral locating slot is arranged and be provided with an engagement locating slot 42 that is close to the neutral locating slot in the axial direction at least in the upper surface of each speed change retaining and shifting block groove certain axial distance of being separated by.Neutral locating slot 40 extends to the scope of the width of each speed change retaining, and the engagement locating slot is also like this, and when speed change was kept off all at neutral gear position, the neutral locating slot that each speed change is blocked also all was aligned to delegation.Axial distance between engagement locating slot 42 and the neutral locating slot 40 generally equals certain speed change retaining and puts the axial displacement of being done from neutral gear position to the engagement gear, will aim at the neutral locating slot that other speed change is kept off so be in the engagement locating slot of that speed change retaining that the engagement gear puts.From Fig. 5 as seen, alignment pin is installed in the supporting 45, the latter by spring 46 inwards and bias voltage, so that can flexibly embed in the neutral locating slot and/or engagement retaining locating slot of the speed change retaining that can do axial displacement, the summation that the single bearing pin of using as locating stud 44 can have any suitable shape of cross section and its length to be greater than the width of each speed change retaining.The neutral locating slot 40 that alignment pin 44 embedding speed changes are blocked can make all speed change retainings flexibly place neutral gear position; In case selected speed change gear shaft is when the position that is displaced to gear engagement, alignment pin 44 also will embed in the engagement retaining location cotter way 42 of selected speed change retaining, makes selected speed change retaining flexibly remain on the position with gear engagement.The influence that prevents that speed change lever from impacting suddenly etc. and brought.
Although shift control mechanism 10 of the present invention is particularly suitable for the speed change retaining housing assembly adapted with above-mentioned this class,, shift control mechanism of the present invention can keep off the housing assembly adapted with the speed change of other types too.Particularly, although elaboration is that cross section is the speed change retaining of rectangle, cross section is also adopted the advantage with uniqueness by operating mechanism 10 for the speed change retaining housing assembly of the speed change retaining of circle in the same old way.
10 li of shift control mechanisms a shift lever assembly that pivots 48 that is installed in the manipulator housing 12 is arranged, it along with the direction of the parallel axes of speed change retaining, be to swing on the arrow x-x direction, again can along with the transversal direction of speed change gear shaft line, promptly swing on the arrow y-y direction.In the embodiment who is set forth, shift lever assembly 48 has a lower position 50, and its lower end has a shifting block 52 and is used for matching with the shifting block groove.Assembly 48 also has one upwards to extend position 54, generally has a Der Schalthebel 56 in the top, and steam supply car pilot control is used.Handgrip 56 can adopt Any shape, can grip to good with operator, a joint inipple 58 is arranged, so that be threaded with top position 54 usefulness of speed change lever in the upper end of the lower position 50 of speed change lever.Also available other modes link lower position 50 and top position 54.Certainly, integrally-built shift lever assembly 48 may have more typicalness as in prior art.Everybody knows, such shift control mechanism is at first on arrow y-y direction, promptly select on the direction of gear, shifting block 52 is around the motion of electing property of axle, then on arrow x-x direction, be on the gear engagement direction, shifting block 52 moves around axle, just can make speed change retaining mesh and remaining speed change is kept off with selected gear when doing axial motion shown in the x-x direction effectively by these two step shift control mechanisms is locked on the neutral gear position, just as already known, especially in the speed change to heavy synchrom esh transmission, the power when shifting block 52 sways on the direction y-y direction that needed force rate on the direction x-x of the gear engagement direction is being selected is much bigger in the speed change of speed changer.So, have only a rotating center or a fulcrum and only have enough mechanical advantage in this mode of operation of gear engagement on two directions that rotate around axle because speed change lever is actually first kind lever thereby bar, this will cause this bar to carry out one section unnecessarily long stroke or stroke in gear selection operation mode.On the contrary, the stroke of minimizing speed change lever may cause bar needed mechanical advantage on the gear engagement direction to reduce in the selection operation mode.
Speed change lever member 50 can be rotated to support on the rotation supporting part as axle 60 and rotates so that be to move on the direction shown in the arrow x-x in the gear engagement direction around axis 62.Axle 60 is fixed on the selector fork member 64, and selector fork member 64 is supported on the pedestal by axle as is installed on the axle 66 in the manipulator housing 12 so that be to rotate around axis 68 on the arrow y-y direction in the gear choice direction.It should be noted that axle 60 only makes speed change lever member 50 move around axle on the x-x direction with respect to selector fork member 64, axle 66 then only makes selector fork member 64 and does to move around axle on the y-y direction with respect to control shell 12.Therefore, shown in Fig. 1-5, the motion of shift lever assembly 48 in choice direction will cause speed change lever member 50 and selector fork member 64 integrally to rotate around axis 68 as one, and the motion of shift lever assembly 48 on the gear engagement direction will cause speed change lever member 50 to rotate with respect to selector fork member 64 around axis 62.
Shown in Fig. 1-4, shift lever assembly 48 is will drive selector fork member 64 around the axle motion and move around axle together on the y-y direction in the direction of selecting gear.To cause groove 82 also to aim at selected speed change retaining for what shifting block 52 is aimed at any one retaining in the selected speed change retaining 18,20,22 and 24 done around the axle motion, this just makes that selected speed change retaining is can pass through on the x-x direction in gear engagement from groove 82, and the projection 76 and 78 that extends inwards will stop remaining speed change retaining to enter engagement, and this just is locked in all the other speed change retainings on the neutral gear position axial centre position or non-displacement.Therefore, by speed change lever member 50 and selector fork member 64 moving on arrow y-y direction around axle, shifting block 52 and selected speed change retaining aimed at groove 82 will be kept off with selected speed change aim at, thereby making selected speed change retaining leave neutral gear position moves axially, at the same time projection 76 and 78 is placed in the interlock slot 30 of all the other speed change retainings, make all the other speed change retainings be in the state that can not mesh and stop moving axially of all the other speed change retainings.Therefore, the invention provides quite simple, a cheap and mutual interlocking gear reliably, this mechanism needn't depend on the slip of pin member or ball member, without the spring displacement method, and the quite complicated disk-like structure that also need not always adopt.
After correctly having selected needed speed change retaining, the work that needed gear is meshed is to move and drive speed change lever part 50 around axle on the x-x direction to finish around axle 60 rotations by shift lever assembly 48 along gear engagement just, referring to Fig. 5.This swaying on the x-x direction will cause shifting block 52 to cooperate with the inwall 32 or 34 of shifting block groove 30, and selected speed change retaining and the shift fork that is driven thereof are passed in needed axial motion, and this is well-known in prior art.Horizontal width 80 by projection 76 that extends inwards and 78 grooves that limited 82 makes selected speed change retaining do axial motion by groove 82, and projection 76 and 78 will stop remaining retaining to mesh, to prevent to produce axial motion.Can see that the seal closure or the Sealing 88 that are fixed on the device are arranged in the manipulator housing 12, this is well-known in prior art.
As mentioned above, and can see in more detail that from Fig. 7 shift lever assembly 48 makes shifting block 52 and groove 82 aim at selected speed change retaining around axle motion on arrow y-y direction, usually with this selection operation as shift control mechanism 10, it is as a whole around axis 68 rotations that it causes speed change lever 54 and selector fork member 64 to be done.The motion of shift lever assembly 48 on arrow x-x direction makes selected speed change retaining produce axial motion, and this will make speed change lever member 50 rotate around axle 62 and with respect to selector fork member 64 and manipulator housing 12.Therefore, shifting block 52 in the choice direction around axle motion be independent of its on the engagement direction around the axle motion, and be around two spaced apart from each other, independently axle and fulcrum 62 and 68 and rotation separately.Because 56 distance 90 is greater than 56 the distance 92 from axis 68 to Der Schalthebel from axis 62 to Der Schalthebel, and from shifting block 52 to axis 62 distance 94 less than the distance 96 of shifting block to axis 68, so can know the mechanical advantage (by distance 90 divided by distance 94 obtain) of shift control mechanism 10 in the working principle of gear engagement, greater than the mechanical advantage in the selection working gear principle of shift control mechanism 10 (deciding divided by distance 96) by distance 92.Therefore, shift control mechanism 10 provides quite simple, a cheap and reliable structure to come one group of speed change retaining in the speed change lever housing is carried out speed governing; Thereby this structure utilize spaced apart from each other and separately independently rotating shaft or fulcrum select and the operating process of meshing and make obtainable mechanical advantage and desired Der Schalthebel stroke can be according to each mode of operation separately design satisfy some specific (special) requirements of a certain shift of transmission and/or vehicle structure.
Fig. 8 respectively keeps off key plan for the typical speed change lever of a kind of speed changer of application shift control mechanism 10 of the present invention.Fig. 8 has illustrated that has six forward velocity with illustrating, and the speed change lever of the speed changer of a reverse speed respectively keeps off key plan.
Want the 5th or the 6th retaining speed of selective transmission, shifting block 52 and groove 82 should be aimed at speed change retaining 24.Similar therewith, select the 3rd or the 4th retaining speed for use, should keep off 20 with speed change and aim at, selecting for use reverses gear then should keep off 18 with speed change and aim at.In order to guarantee that operation is correct, importantly to give a kind of indication of operator or feel, expression shifting block 52 and groove 82 have correctly been aimed at needed speed change retaining.Be purpose of safety, the motion of choosing when reversing gear to be done requires to overcome bigger resistance, and need exert oneself when disengaging is reversed gear and shifting block 52 could be released.
Shown in Fig. 1-4, can be more clearly visible, selector fork member 64 is placed restrictions on part 98 and 100 with a pair of downward extension, this places restrictions on part has the inner plane 102 and 104 of general planar across speed change retaining 18,20, around 22 and 24, it is bigger than the distance that the diapire 33 of shifting block groove 30 leaves axis 68 that it extends downwards the distance of leaving axis 68, therefore selector fork member 64 is done to be limited owing to internal surface 102 is close to speed change retaining 18 when axle moves in the counterclockwise direction, and does in the clockwise direction to be limited owing to internal surface 104 leans against on the speed change retaining 24 when axle moves.Certainly, placing restrictions on part 98 and 100 also can be close to than length 86 wideer the retainings with speed change with assurance of groove 30.The internal surface 102 of placing restrictions on part 98 is seen Fig. 2 with the spacing 106(of shifting block 52) be selected like this; Promptly be enough to make shifting block 52 and groove 82 to aim at the outermost speed change in the right when keeping off 24 when the selector fork member 64 and the counter clockwise direction of shifting block 52 move to, 102 of internal surfaces are near living speed change retaining 18, referring to Fig. 4.The internal surface 104 of placing restrictions on part 100 is seen Fig. 2 with the spacing 108(of shifting block 52) be this selected; Promptly be enough to make shifting block 52 and groove 82 to aim at the outermost speed change in the left side when keeping off 18 when selector fork member 64 and speed change lever member 50 move to along clockwise direction, 104 of internal surfaces are near the speed change retaining 24 of living the right, referring to Fig. 1.Therefore, the internal surface separately 102 and 104 of placing restrictions on part 98 and 100 has correspondingly limited selector fork 64 speed change lever members 50 and in the choice direction has been the scope of moving around axle on the direction shown in the arrow y-y, thus, for selective transmission reverse gear or the 5th or the 6th kind of speed certain stable indication is provided, show the speed change retaining 18 and 24 of having aimed at selected outside.Like this, by the pressure around the axle motion of selector fork member 64 and speed change lever member 50 being placed restrictions on the speed change retaining 18 or 24 that can confirm really to choose the outside.
An indication or feel are provided in order to give operator, show that the speed change retaining 20 or 22 of correctly choosing the inside is one of in these two, shift control mechanism 10 provides an oblique installing type spring-loaded plunger device 110, it and concave surface or step surface 112 contact with each other, and 112 are located at a suitable position on the selector fork member 64.The structure of plunger assembly 110 and concave surface 112 will describe in detail and can be referring to Figure 1A-4A relevant with Fig. 1-4 hereinafter.
In operating process, shown in Figure 1A-4A, the interaction of the plunger assembly 110 and the face 112 that concaves is as described below.When shifting block 52 and 82 the 5th and the 6th speed of just in time aiming at keeps off 24, at this moment plunger 118 does not keep off 24 selection correctness with inclined-plane 112 contacts be that internal surface 102 and the outmost speed change in the left side by placing restrictions on part 98 kept off 18 and contacted and indicate, referring to Fig. 4 and 4A.When shifting block 52 and groove 82 the 3rd and the 4th speed of just in time aiming at keep off 22, plane 130 on the top 126 of plunger 118 just in time contacts with the first portion 132 of the face of concaving 112, concaving face 112 will be to clear and definite indication of operator with initial contact of oblique installing type spring-loaded plunger 118, show that speed change retaining 22 has correctly been chosen, referring to Fig. 3 and 3A.When shifting block 52 and groove 82 just in time aim at the 1st and the speed change of the 2nd kind of speed when keeping off 20, the top 126 of oblique installing type spring-loaded plunger 118 will place in the groove between second and the third part 134 and 136 of the face of concaving 112, in the groove that 128 whiles of inclined-plane at top 126 and second portion 134 and third part are 136, the inclined-plane 128 at top 126 contacts with second portion 134 and third part 136 simultaneously, can be referring to Fig. 2 and 2A.Top 126 places on the position of surface portion 134 and 136 grooves that determined, this just gives the clear and definite indication of operator, show that speed change retaining 20 has correctly been chosen because further rotate in the direction of the clock selector fork member 64 and speed change lever member 50 just need apply one sizable or be compelling big strength at least.This shows, can provide a clear and definite indication to operator: correctly choose inboard speed change retaining 20 and 22 by using oblique installing type spring-loaded plunger device 110 and inclined-plane 112.
Shown in Fig. 1 and 1A, shifting block 52 and groove 82 with reverse gear 18 aim at, be that internal surface 104 by stop 100 contacts with the outmost speed change retaining 24 in the right and clearly indicates.Speed change lever will make inclined-plane 128 from plunger head 126 to the motion of this position from the groove location shown in Fig. 2 A surfacewise part 136 slide to the position shown in Figure 1A, this moment, outwards 120 on the spring of cant plunger 118 further was compressed.The further retraction of plunger 118 provides needed big resistance to prevent unexpected block selecting mistake and a kind of mechanism further is provided for selecting reverse gear shift 18, remain in position owing to the effect of this mechanism makes selector fork 64 and shifting block 52 can not overcome the resistance that spring baroclines, just released the position of aiming at reverse gear shift 18 effectively.Certainly, the spring constant of spring 120, the angle of the angle of the chamfered portion 128 at top 126 and surface of contact part 132,134 and 136 can change so that needed performance characteristic to be provided.
As seen, it is a kind of new that the claimant provides, the shift of transmission operating mechanism that has improved, can directly install, this mechanism arrangement a kind of quite simple but effective mutual interlocking gear, this operating mechanism at select and mesh done in two kinds of operations adopted separately independently rotating shaft or fulcrum so that this two kinds of modes of operation all have mechanical advantage separately around the axle motion, and when this mechanism also makes operator carry out speed change in the speed changer with 3 or 4 speed change retainings, confirm to have chosen needed speed change retaining.
Can think, in the foregoing description all members in detail with configuration on all changes of being carried out do not exceed the essence and the protection domain of the claim that following just the present invention proposes.
Claims (8)
1, a shift control mechanism (10), it and a speed changer keep off housing assembly (16) logotype, speed change retaining housing assembly is made up of speed change retaining housing (14) and one group of speed change retaining (18,20,22,24) of doing axial motion in above-mentioned speed change retaining housing, and each above-mentioned speed change is blocked and all is equipped with shift fork (26) and is used for meshing and separates the interior selected gear of speed changer.And having one does not make the neutral gear position of axial displacement and has an engaging position of doing axial displacement at least, all specify the shifting block groove (30) of a horizontal expansion on a certain surface of each above-mentioned speed change retaining, so that same shifting block (52) meshes, when above-mentioned all speed changes retaining all is positioned at the neutral gear position of not doing axial displacement, above-mentioned all shifting block grooves all align and communicate, a manipulator housing (12) can be installed on the speed change retaining housing, being characterized as of above-mentioned shift control mechanism:
A selector fork member (64) is bearing in first axle (68) on the above-mentioned manipulator housing (12) with axle and sentences just become a horizontal plane basically with the axis of above-mentioned speed change retaining in and rotate: above-mentioned selector fork member has a groove (82), towards roughly extending with the direction of the parallel axes of above-mentioned speed change retaining, speed change lever can sway in this groove, the contiguous above-mentioned shifting block of above-mentioned groove, has a horizontal width (80), be positioned at plane perpendicular to above-mentioned first axle, this width (80) is bigger than the width (38) of above-mentioned each speed change retaining, and littler than the combined width of any two speed changes retaining;
A shift lever assembly (48) comprises a shifting block (52) that meshes with above-mentioned shifting block groove, and above-mentioned shift lever assembly is installed on the above-mentioned selector fork member with axle, is positioned at the plane of the axis that is roughly parallel to above-mentioned speed change retaining; Above-mentioned shift lever assembly comprises a first order lever, have one from second axis (62) towards above-mentioned speed change retaining extends, with above-mentioned shifting block is the first portion (50) of terminal, and from above-mentioned second axis towards direction away from above-mentioned shifting block, and it is outward extending from above-mentioned manipulator housing, with Der Schalthebel (56) is the second portion (54) of terminal, and the distance between above-mentioned Der Schalthebel and the above-mentioned first axle is less than the distance distance (90) between above-mentioned Der Schalthebel and above-mentioned second axis;
Above-mentioned member with the horizontal y-y direction of the axis of above-mentioned speed change retaining on will cause above-mentioned selector fork member and shift lever assembly to rotate around the axle motion around above-mentioned first axis, and above-mentioned speed change lever will cause above-mentioned speed change lever around rotating with respect to speed change retaining housing and selector fork member with above-mentioned second axis around the axle motion on the x-w direction of the axis that is parallel to above-mentioned speed change retaining.
2, according to the desired shift control mechanism of claim 1, above-mentioned each speed change retaining (18,20,22,24) has a roughly horizontal width (38) of phase＜DP〉etc.
3, according to the desired shift control mechanism of claim 2, above-mentioned speed change retaining is flat basically, and is arranged on abreast in the above-mentioned speed change lever housing.
4, according to the desired shift control mechanism of claim 2, above-mentioned selector fork member has one first and places restrictions on part (98), it extends from a side of the horizontal cross direction of shift fork member, second places restrictions on part (100), its another side from the horizontal cross direction of shift fork member extends, moving to around axle at above-mentioned selector fork member is enough to make above-mentioned shifting block and groove to aim at the most close second when placing restrictions on the speed change retaining (24) of part, above-mentioned first places restrictions on part and speed change retaining (18) near living, moving to around axle at above-mentioned selector fork member is enough to make above-mentioned shifting block and groove to aim at the most close first when placing restrictions on the speed change retaining (18) of part, and above-mentioned second places restrictions on part and speed change retaining (24) near firmly.
5, according to the desired shift control mechanism of claim 4, above-mentioned speed change retaining is flat by four, speed change retaining is stem for stem formed, and has an oblique installing type spring-loaded plunger (110) that a groove type locating face (112) that forms and extend out one of from above-mentioned operating mechanism housing and speed change retaining housing on above-mentioned selector fork member, above-mentioned oblique installing type spring-loaded plunger can decide that face contacts with above-mentioned groove type and by moving to the position of different spring withdrawals from the position that the oblique displacement of above-mentioned spring is stretched most with contacting of above-mentioned locating face, when above-mentioned shifting block aimed at for the most close above-mentioned second speed change when retaining of placing restrictions on part, the oblique installing type spring-loaded plunger does not contact with the face of concaving, when above-mentioned shifting block aligning is placed restrictions on the speed change retaining of part adjacent to the most close second, above-mentioned oblique installing type spring-loaded plunger begins to contact with the above-mentioned face of concaving, when the speed change retaining of above-mentioned shifting block aligning keeps off adjacent to the most close above-mentioned first above-mentioned speed change of placing restrictions on part, above-mentioned oblique installing type spring-loaded plunger is withdrawn towards the direction opposite with spring displacement, and contacts with the groove of the above-mentioned face that concaves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101340.6A CN1004164B (en) | 1985-04-01 | 1985-04-01 | Shifting gear motivator with direct erection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101340.6A CN1004164B (en) | 1985-04-01 | 1985-04-01 | Shifting gear motivator with direct erection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101340A CN85101340A (en) | 1987-01-10 |
| CN1004164B true CN1004164B (en) | 1989-05-10 |
Family
ID=4791784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101340.6A Expired CN1004164B (en) | 1985-04-01 | 1985-04-01 | Shifting gear motivator with direct erection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004164B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455852C (en) * | 2005-06-20 | 2009-01-28 | 上海依赛工业有限公司 | Shifting fork device of automobile gearshift mechanism |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4445241B2 (en) * | 2003-10-16 | 2010-04-07 | 本田技研工業株式会社 | Shift lever device |
| WO2012103948A1 (en) * | 2011-02-03 | 2012-08-09 | Kongsberg Automotive As | Gear shift device for coupling to a gear box |
| CN102644727A (en) * | 2012-05-04 | 2012-08-22 | 李镇奇 | Universal type main speed changing device |
| JP6094459B2 (en) * | 2013-11-15 | 2017-03-15 | トヨタ自動車株式会社 | Manual transmission |
| CN103742639B (en) * | 2014-01-10 | 2016-05-18 | 重庆睿格汽车部件有限公司 | Selector and feel thimble assembly thereof |
-
1985
- 1985-04-01 CN CN85101340.6A patent/CN1004164B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455852C (en) * | 2005-06-20 | 2009-01-28 | 上海依赛工业有限公司 | Shifting fork device of automobile gearshift mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101340A (en) | 1987-01-10 |
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