CN202579993U - Shifting fork component applied to automated mechanical transmission (AMT) - Google Patents
Shifting fork component applied to automated mechanical transmission (AMT) Download PDFInfo
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- CN202579993U CN202579993U CN 201220124800 CN201220124800U CN202579993U CN 202579993 U CN202579993 U CN 202579993U CN 201220124800 CN201220124800 CN 201220124800 CN 201220124800 U CN201220124800 U CN 201220124800U CN 202579993 U CN202579993 U CN 202579993U
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Abstract
The utility model provides a shifting fork component applied to an automated mechanical transmission (AMT) and belongs to the technical field of automotive transmissions. The shifting fork component applied to the AMT resolves the problems that a shifting fork and a fork shaft in an existing gear-shifting mechanism are connected in a welded mode or through bolts, so that the transmission space is large, the number of parts is large and assembly is complex. The shifting fork component applied to the AMT comprises a fork shaft and a plurality of shifting forks sleeved outside the fork shaft, wherein gear selecting-and-shifting plates are arranged between the fork shaft and the shifting forks, one side of each gear selecting-and-shifting plate is fixed on the fork shaft through a fixing structure along the axial direction of the fork shaft, and a gear selecting-and-shifting mechanism is arranged between the gear selecting-and-shifting plates and the shifting forks and enables one of the shifting forks to move along the axial direction of the fork shaft and other shifting forks not to move along the axial direction of the fork shaft after the fork shaft rotates. According to the shifting fork component applied to the AMT, the shifting forks with the gear-selecting function and the gear-shifting function are integrated on the same fork shaft, namely the function of the fork shaft and the function of a gear-selecting shaft are integrated, and therefore the space of the transmission is saved, and the integration degree of parts and components is improved.
Description
Technical field
The utility model belongs to the automotive transmission technical field, relates to a kind of AMT speed changer, particularly a kind of selector fork assembly that is used for the AMT speed changer.
Background technique
Speed changer is one of topmost parts in the automotive transmission, also is the important component part of automobile.Speed changer is through changing velocity ratio, change the torque of engine crankshaft, adapts at the needs of starting to walk, quicken, go and overcome under the different driving conditions such as different kinds of roads obstruction driving wheel tractive force and speed of a motor vehicle demands of different.Existing speed changer generally is divided into manual transmission, automatic transmission, manual speed changer and stepless speed variator.Speed changer is made up of variable transmission mechanism and selector gear: the main effect of variable transmission mechanism is numerical value and the direction that changes torque and rotating speed; The main effect of selector gear is the control driving mechanism, realizes the conversion of transmission ratio, promptly realizes gearshift, to reach the speed change bending moment.And, have a series of deficiency and problem for existing speed changer with gearshift actuator, and such as pluck shelves, gearshift difficulty in the gearshift, component integrated not high installed phenomenons such as very complicated.
For the gearshift of existing automotive transmission, also some patent is improved the deficiency of its existence, discloses a kind of gearshift mechanism of automotive transmission [patent No.: ZL200620010089.0 like the Chinese patent document; Notice of authorization number: CN 200961681Y].This gearshift mechanism of automotive transmission; Comprise fork shaft, gearshift axle, shift fork one, shift fork two and shift fork three, fork shaft is provided with the gearshift shifting block, and the gearshift axle is provided with the gearshift shifting block; The gearshift shifting block matches with the gearshift shifting block; Shift fork one, shift fork two and shift fork three are installed on the fork shaft, and can endwisely slip along fork shaft, and the fork shaft between shift fork one and the shift fork two is provided with the interlocking axle sleeve; The right side fork shaft of shift fork three is provided with the self-locking axle sleeve, and the both sides that the gearshift axle is gone up the gearshift shifting block are provided with block selecting spring one and block selecting spring two.In this patent, the gearshift of this automotive transmission can effectively solve the problem of plucking retaining, gearshift difficulty in the gearshift.
But; Also there is a series of problem in this gearshift mechanism of automotive transmission; Such as: 1, shift fork in the gearshift and fork shaft connect through welding or bolt; Through shift fork and fork shaft that welding method connects, there is the possibility of distortion in shift fork in welding process, and the difficulty of processing of component is strengthened; And the disabler that shift fork that connects through bolt and fork shaft are easy to make because of coming off of bolt shift fork and forked axle assembly, and the assembling of this shift fork and fork shaft is comparatively complicated.2, this shift fork, fork shaft and gearshift are realized its function separately by different part respectively, can not height integrated, strengthened the space of speed changer, and the structure of this gearshift is comparatively complicated, number of spare parts is more, versatility is poor.Owing to there is above-mentioned problem; Technician for this automotive transmission field; Be still waiting further gearshift mechanism of automotive transmission to be done deep research,, gearshift in the automotive transmission become oversimplify more and integrated to solve the above problems.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of selector fork assembly of the AMT of being used for speed changer, and this selector fork assembly has choosing gearshift function.
The purpose of the utility model can realize through following technical proposal: a kind of selector fork assembly of the AMT of being used for speed changer; Comprise fork shaft and some fork shaft upper shift forks that is set in; Be provided with choosing gearshift plate between described fork shaft and the shift fork; Described choosing gearshift plate one side is fixed on the described fork shaft through the axial direction of a fixed structure along fork shaft, is provided with between described choosing gearshift plate and the shift fork to work as to rotate one of them shift fork is moved axially behind the fork shaft along with fork shaft and other shift fork can't be along with axially movable gear shift mechanism.
Originally the selector fork assembly that is used for the AMT speed changer moves axially with the actuator that circumferentially rotates with the fork shaft that can control this assembly and links to each other.Under the effect of actuator, make fork shaft take place circumferentially to rotate, select shelves; Under the effect of actuator, fork shaft is moved axially, under the effect of gear shift mechanism, have only one of them shift fork to move axially together along with fork shaft, all the other shift forks can't move axially along with fork shaft together, so just can shift gears.
At the above-mentioned selector fork assembly that is used for the AMT speed changer; The quantity of said shift fork is three; Be shift fork one, shift fork two and shift fork three; Described shift fork one, shift fork two and shift fork three include installation head with mounting hole and the turning lever that is solidly fixed with installation head, and the mounting hole of said installation head all is set on the above-mentioned fork shaft.Each shift fork all is to be set on the fork shaft through the mounting hole on the installation head, and the mode of stirring through turning lever is shifted gears the completion of AMT speed changer.
At the above-mentioned selector fork assembly that is used for the AMT speed changer; Described gear shift mechanism comprises and is opened on the choosing gearshift plate opposite side three grooves, is opened in groove one and groove two on the mounting hole hole wall of shift fork one, is opened in groove three and the groove four on the mounting hole hole wall of shift fork two and is opened in groove five and the groove six on the mounting hole hole wall of shift fork three; Described groove one and groove five to offer direction identical; Said groove two and groove three to offer direction identical, said groove four and groove six to offer direction identical; The installation head of described shift fork one, shift fork two and shift fork three is separately positioned in three grooves, and the installation head of described shift fork one, shift fork two and shift fork three can be resisted against respectively on the cell wall of groove separately; The groove depth of described groove one, groove two, groove three, groove four, groove five and groove six is all greater than the groove depth of groove.
When needs are stirred shift fork one and are shifted gears; Choosing gearshift plate can act on the installation head of shift fork one at the cell wall that is arranged with shift fork one groove place; And choosing gearshift plate the cell wall that is arranged with shift fork two and shift fork three groove places can be corresponding respectively the groove six of the groove that is located in shift fork two four and shift fork three in; When moving axially under the effect of fork shaft in actuator, fork shaft can be stirred shift fork one and move axially, and does not stir shift fork two and shift fork three; When needs are stirred shift fork two and are shifted gears; Choosing gearshift plate can act on the installation head of shift fork two at the cell wall that is arranged with shift fork two groove places; And choosing gearshift plate the cell wall that is arranged with shift fork one and shift fork three groove places can be corresponding respectively the groove five of the groove that is located in shift fork one one and shift fork three in; When moving axially under the effect of fork shaft in actuator, fork shaft can be stirred shift fork two and move axially, and does not stir shift fork one and shift fork three; When needs are stirred shift fork three and are shifted gears; Choosing gearshift plate can act on the installation head of shift fork three at the cell wall that is arranged with shift fork three groove places; And choosing gearshift plate the cell wall that is arranged with shift fork one and shift fork two groove places can be corresponding respectively the groove three of the groove that is located in shift fork one two and shift fork two in; When moving axially under the effect of fork shaft in actuator, fork shaft can be stirred shift fork three and move axially, and does not stir shift fork one and shift fork two.
At the above-mentioned selector fork assembly that is used for the AMT speed changer, the quantity of described choosing gearshift plate is two, and two are selected the gearshift plate to be symmetrical set with respect to the shaft axis of fork shaft.When fork shaft circumferentially rotated and moves axially, two blocks of choosing gearshift plates can act on respectively on shift fork one or shift fork two or the shift fork three uniformly, thereby guarantee the stability of fork shaft to block selecting and gearshift.
At the above-mentioned selector fork assembly that is used for the AMT speed changer; The quantity of described groove one, groove two, groove three, groove four, groove five and groove six is two, and four, two grooves five of three, two grooves of two, two grooves of one, two grooves of two grooves and two grooves six all are symmetrical set with respect to separately the mounting hole hole heart.Because two blocks of choosing gearshift plates are symmetrically arranged with respect to the fork shaft shaft axis; When fork shaft in circumferential rotation process; Two blocks of choosing gearshift plates must be positioned in the groove of any wherein two shift forks; When two blocks of choosing gearshift plates need not stirred these two shift forks, fork shaft moved axially, and two blocks of choosing gearshift plates just can pass through from the groove of these two shift forks smoothly.
At the above-mentioned selector fork assembly that is used for the AMT speed changer; Described fixed structure comprises the locating slot of offering along the fork shaft axial direction one and locating slot two, latch one and latch two; Described two choosing gearshift plate one sides are separately positioned in locating slot one and the locating slot two, and two choosing gearshift plate opposite sides stretch out locating slot one and locating slot two respectively; Described latch one and latch two are symmetricly set between the installation head of fork shaft and shift fork one, shift fork two and shift fork three, and two blocks of above-mentioned choosing gearshift plates all are between latch one and the latch two and with latch one and latch two and lean.
At the above-mentioned selector fork assembly that is used for the AMT speed changer, the length of described choosing gearshift plate is identical with the flute length of locating slot one and locating slot two, and the thickness of described choosing gearshift plate is identical with the groove width of locating slot one and locating slot two.
Two sides of selecting the gearshift plate wherein not have three grooves can be inserted into respectively in the locating slot one and locating slot two of fork shaft; A side that has three grooves can be stretched out locating slot one and locating slot two respectively, make two blocks of choosing gearshift plates not relatively the fork shaft generation move axially.When two blocks of choosing gearshift plates are plugged in locating slot one and locating slot two; And latch one and latch two is fastened on two blocks of choosing gearshift plates simultaneously when stretching out between the position of locating slot one and locating slot two; The circumferential rotation of fork shaft can drive latch one, latch two and two blocks of choosing gearshift plates simultaneously and rotate together; Fork shaft, latch one, latch two and two blocks of choosing gearshift plates can relatively not rotated, and whole fixed structure is compact more.
At the above-mentioned selector fork assembly that is used for the AMT speed changer, described latch one is provided with latch two can prevent that both are along the axially movable axial limiting structure of fork shaft; Described limit structure comprise be opened in latch one and latch two wherein the restraining groove one on the end with restraining groove two, offer restraining groove three and restraining groove four, back-up ring one and back-up ring two on latch one and the latch two other ends; Described restraining groove one all is symmetrical set with respect to fork shaft with restraining groove four with restraining groove two and restraining groove three; Described back-up ring one the inner is set in restraining groove one and the restraining groove two, and described restraining groove one is stretched out in the outer end of back-up ring one and restraining groove two leans with an end that selects the gearshift plate; Described back-up ring two the inners are set in restraining groove three and the restraining groove four, and described restraining groove three is stretched out in the outer end of back-up ring two and restraining groove four leans with the other end that selects the gearshift plate.
Be set in restraining groove one and restraining groove two on latch one and latch 21 ends through back-up ring one; Back-up ring two is set on the restraining groove three and restraining groove four on the latch one and latch two the other ends; Back-up ring one and back-up ring two not relatively latch one produce with latch two and move axially, and can make latch one and latch two be installed in the surface of fork shaft more closely.Because back-up ring one is resisted against an end of two blocks of choosing gearshift plates; Back-up ring two is resisted against the other end of two blocks of choosing gearshift plates; Latch one can not move axially with latch two in the generation of relative two blocks of choosing gearshift plates; Two blocks of choosing gearshift plates not relatively fork shaft produce and move axially, thereby guarantee back-up ring one, back-up ring two, latch one, latch two and two blocks of choosing gearshift plates not relatively the fork shaft generation move axially.
At the above-mentioned selector fork assembly that is used for the AMT speed changer, described shift fork one, shift fork two and shift fork three are all one-body molded through the mode of forging.Adopt the shift fork of forging molding to have higher plasticity, the stability in the time of can guaranteeing shift fork work.
The selector fork assembly that is used for the AMT speed changer above-mentioned offers some ringwise self-locking grooves on the described fork shaft.Because the end that fork shaft has a self-locking grooves is to be inserted among the housing of AMT speed changer; Has holding down bolt on the housing; This holding down bolt can act in any self-locking grooves of fork shaft, after fork shaft is accomplished the choosing gearshift to the AMT speed changer, holding down bolt is positioned in the self-locking grooves; Fork shaft is locked, thereby guarantee to select the gear accomplished safe and reliable.
Compared with prior art, the selector fork assembly that originally is used for the AMT speed changer has the following advantages:
1, the utility model carries out block selecting and gearshift through the shift-selecting and changing actuating mechanism of AMT speed changer; Can the shift fork Unified Set that can realize block selecting and gearshift function become to be installed on the same fork shaft, promptly the function of fork shaft be integrated with the function of gearshift axle, has removed the gearshift axle from; Block selecting and gearshift are all accomplished by fork shaft; Reduce cost of production, also saved the space of speed changer simultaneously, improved the integrated degree of component.
2, shift fork in this selector fork assembly and fork shaft need not connect through modes such as welding or bolts, so assembly process is simple and convenient.
3, the shift fork in this selector fork assembly is the forge piece shift fork, adopts the shift fork of forging molding to have higher plasticity, the stability in the time of can guaranteeing shift fork work.
4, the utility model also have reasonable in design, compact structure, easy to use, block selecting and gearshift flexibly, advantage such as versatility is good.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of fork shaft in the utility model;
Fig. 3 is the structural representation of shift fork one in the utility model;
Fig. 4 is the structural representation of shift fork two in the utility model;
Fig. 5 is the structural representation of shift fork three in the utility model;
Fig. 6 is the structural representation of choosing gearshift plate one in the utility model;
Fig. 7 is the structural representation of choosing gearshift plate two in the utility model;
Fig. 8 is the structural representation of latch one in the utility model;
Fig. 9 is the structural representation of latch two in the utility model;
Figure 10 is that the utility model is faced structural representation when linking to each other with the AMT case of transmission.
Among the figure, 1, fork shaft; 111, locating slot one; 2, shift fork one; 21, installation head; 22, shifting fork bar; 23, mounting hole; 24, groove one; 25, groove two; 3, shift fork two; 31, groove three; 32, groove four; 4, shift fork three; 41, groove five; 42, groove six; 5, choosing gearshift plate one; 6, choosing gearshift plate two; 7, latch one; 71, restraining groove one; 72, restraining groove three; 8, latch two; 81, restraining groove two; 82, restraining groove four; 9, back-up ring one; 10, back-up ring two; 11, self-locking grooves; 12, holding down bolt; 13, AMT case of transmission.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
As shown in Figure 1; A kind of selector fork assembly that is used for the AMT speed changer; Comprise fork shaft 1 and some shift forks that are set on the fork shaft 1; Be provided with choosing gearshift plate between fork shaft 1 and the shift fork, choosing gearshift plate one 5 sides are fixed on the fork shaft 1 through the axial direction of a fixed structure along fork shaft 1, are provided with between choosing gearshift plate and the shift fork to work as to rotate one of them shift fork is moved axially behind the fork shaft 1 along with fork shaft 1 and other shift fork can't be along with axially movable gear shift mechanism.
Do bright specifically when present embodiment only is three to the quantity of the selector fork assembly shift fork that is used for the AMT speed changer when this.
Like Fig. 3, Fig. 4 and shown in Figure 5; Be respectively shift fork 1, shift fork 23 and shift fork 34 in the selector fork assembly of this AMT speed changer; Shift fork 1, shift fork 23 and shift fork 34 include installation head 21 with mounting hole 23 and the turning lever that is solidly fixed with installation head 21; These three shift forks all are set on the fork shaft 1 through the mounting hole 23 of installation head 21, and the mode of stirring through turning lever is shifted gears the completion of AMT speed changer.Shift fork 1, shift fork 23 and shift fork 34 are all one-body molded through the mode of forging, and adopt the shift fork of forging molding to have higher plasticity, the stability in the time of can guaranteeing shift fork work.
Like Fig. 3, Fig. 4 Fig. 5, Fig. 6 and shown in Figure 7, the gear shift mechanism that originally is used for the selector fork assembly of AMT speed changer comprises and is opened on the choosing gearshift plate opposite side three grooves, is opened in groove 1 and groove 2 25 on mounting hole 23 hole walls of shift fork 1, is opened in groove 3 31 and the groove 4 32 on mounting hole 23 hole walls of shift fork 23 and is opened in groove 5 41 and the groove 6 42 on mounting hole 23 hole walls of shift fork 34.Wherein, groove 1 and groove 5 41 to offer direction identical, groove 2 25 and groove 3 31 to offer direction identical, groove 4 32 and groove 6 42 to offer direction identical.The installation head 21 of shift fork 1, shift fork 23 and shift fork 34 is separately positioned in three grooves on the choosing gearshift plate, and the installation head 21 of shift fork 1, shift fork 23 and shift fork 34 can be resisted against respectively on the cell wall of groove separately; The groove depth of groove 1, groove 2 25, groove 3 31, groove 4 32, groove 5 41 and groove 6 42 is all greater than the groove depth of groove.Wherein, the quantity of choosing gearshift plate is two, i.e. choosing gearshift plate 1 and choosing gearshift plate 26, and choosing gearshift plate 1 is symmetrical set with the shaft axis of choosing gearshift plate 26 with respect to fork shaft 1.The quantity of groove 1, groove 2 25, groove 3 31, groove 4 32, groove 5 41 and groove 6 42 is two, and two grooves 1, two grooves 2 25, two grooves 3 31, two grooves 4 32, two grooves 5 41 and two grooves 6 42 all are symmetrical set with respect to separately the mounting hole 23 hole hearts.When fork shaft 1 circumferentially rotates, can select the required shift fork of stirring 1 or shift fork 23 or shift fork 34 with respect to the symmetrically arranged choosing gearshift of fork shaft 1 shaft axis plate 1 and choosing gearshift plate 26; When fork shaft 1 moved axially, choosing gearshift plate 1 can act on shift fork 1 or shift fork 23 or the shift fork 34 with choosing gearshift plate 26 uniformly, thereby guaranteed the stability of 1 pair of block selecting of fork shaft and gearshift.Because choosing gearshift plate 1 is symmetrically arranged with respect to the shaft axis of fork shaft 1 with choosing gearshift plate 26; When two blocks of choosing gearshift plates need not stirred non-selected two shift forks that arrive; Fork shaft 1 moves axially; Two blocks of choosing gearshift plates just can pass through from the symmetrical groove of these two shift forks smoothly, thereby do not stir this two shift forks.
Like Fig. 2, Fig. 8 and shown in Figure 9, the fixed structure that originally is used for the selector fork assembly of AMT speed changer comprises the locating slot of offering along fork shaft 1 axial direction 1 and locating slot two, latch 1 and latch 28.Two choosing gearshift plate one 5 sides are separately positioned in locating slot 1 and the locating slot two, and two choosing gearshift plate opposite sides stretch out locating slot 1 and locating slot two respectively.Latch 1 and latch 28 are symmetricly set between the installation head 21 of fork shaft 1 and shift fork 1, shift fork 23 and shift fork 34, and two blocks of choosing gearshift plates all are between latch 1 and the latch 28 and with latch 1 and latch 28 and lean.The length of two blocks of choosing gearshift plates is identical with the flute length of locating slot 1 and locating slot two, and the thickness of choosing gearshift plate is identical with the groove width of locating slot 1 and locating slot two.This choosing gearshift plate 1 can be inserted into respectively in the locating slot 1 and locating slot two of fork shaft 1 with the side that choosing gearshift plate 26 does not wherein have three grooves; A side that has three grooves can be stretched out locating slot 1 and locating slot two respectively, make two blocks of choosing gearshift plates not relatively fork shaft 1 generation move axially.When two blocks of choosing gearshift plates are plugged in locating slot 1 and locating slot two; And latch 1 and latch 28 is fastened on two blocks of choosing gearshift plates simultaneously when stretching out between the position of locating slot 1 and locating slot two; The circumferential rotation of fork shaft 1 can drive latch 1, latch 28 and one 5 rotations of two blocks of choosing gearshift plates simultaneously; Fork shaft 1, latch 1, latch 28 and two blocks of choosing gearshift plates can relatively not rotated, and whole fixed structure is compact more.
Originally the latch 1 that is used for the selector fork assembly of AMT speed changer is provided with latch 28 and can prevents both along fork shaft 1 axially movable axial limiting structure, this limit structure comprise be opened in latch 1 and latch 28 wherein the restraining groove 1 on the end with restraining groove 2 81, offer restraining groove 3 72 and restraining groove 4 82, back-up ring 1 and back-up ring 2 10 on latch 1 and the latch 28 other ends.Restraining groove 1 all is symmetrical set with respect to fork shaft 1 center line with restraining groove 4 82 with restraining groove 2 81 and restraining groove 3 72.Back-up ring one 9 the inners are set in restraining groove 1 and the restraining groove 2 81, and restraining groove 1 is stretched out in the outer end of back-up ring 1 and restraining groove 2 81 leans with an end that selects the gearshift plate; Back-up ring 10 the inners are set in restraining groove 3 72 and the restraining groove 4 82, and restraining groove 3 72 is stretched out in the outer end of back-up ring 10 and restraining groove 4 82 leans with the other end that selects the gearshift plate.Be set in restraining groove 1 and restraining groove 2 81 on latch 1 and latch 281 ends through back-up ring 1; Back-up ring 10 is set on the restraining groove 3 72 and restraining groove 4 82 on the latch 1 and latch 8 the other ends; Back-up ring 1 and back-up ring 10 not relatively latch 1 produce with latch 8 and move axially, and can make latch 1 and latch 28 be installed in the surface of fork shaft 1 more closely.Because back-up ring 1 is resisted against an end of two blocks of choosing gearshift plates; Back-up ring 10 is resisted against the other end of two blocks of choosing gearshift plates; Latch 1 and latch 28 can not moved axially in the generation of relative two blocks of choosing gearshift plates; Two blocks of choosing gearshift plates not relatively fork shaft 1 produce and move axially, thereby guarantee back-up ring 1, back-up ring 10, latch 1, latch 28 and two blocks of choosing gearshift plates not relatively fork shaft 1 generation move axially.
Shown in figure 10, also offer some ringwise self-locking grooves 11 on the fork shaft 1, in the present embodiment, the quantity of this self-locking grooves 11 is three.Because the end that fork shaft 1 has a self-locking grooves 11 is to be inserted among the housing of AMT speed changer, has holding down bolt 12 on the housing, this holding down bolt 12 can act in any self-locking grooves 11 of fork shaft 1.After fork shaft 1 is accomplished the choosing gearshift to the AMT speed changer, holding down bolt 12 is inserted in the self-locking grooves 11, fork shaft 1 is locked, thereby guarantee to select the gear accomplished safe and reliable.
Originally the selector fork assembly that is used for the AMT speed changer moves axially with the actuator that circumferentially rotates with the fork shaft that can control this assembly 1 and links to each other.Its groundwork principle is such: under the effect of actuator, make fork shaft 1 take place circumferentially to rotate, select shelves; Under the effect of actuator; Fork shaft 1 is moved axially; Selected shift fork when stirring block selecting through choosing gearshift plate has only this shift fork to move axially together along with fork shaft 1, and all the other shift forks can't move axially along with fork shaft 1 together; Form this AMT speed changer and select the interlocking function when shifting gears, so just can accomplish the function of AMT shift of transmission.
More particularly: when fork shaft 1 circumferentially rotates; Fork shaft 1 turns to and makes choosing gearshift plate 1 and choosing gearshift plate 26 can act on the installation head 21 of shift fork 1 at the cell wall that is arranged with shift fork 1; And choosing gearshift plate 1 and choosing gearshift plate 26 the cell wall that is arranged with shift fork 23 and shift fork 34 groove places can be corresponding respectively be located in the groove 6 42 on groove 4 32 and shift fork 34 installation head 21 on shift fork 23 installation head 21; Accomplish the process of block selecting, when fork shaft 1 moved axially, shift fork 1 again can be along with fork shaft 1 moves axially together; And do not stir shift fork 23 and shift fork 34, accomplish the process of gearshift; When fork shaft 1 circumferentially rotates; Fork shaft 1 turns to and makes choosing gearshift plate 1 and choosing gearshift plate 26 can act on the installation head 21 of shift fork 23 at the cell wall that is arranged with shift fork 23; And choosing gearshift plate 1 and choosing gearshift plate 26 the cell wall that is arranged with shift fork 1 and shift fork 34 groove places can be corresponding respectively be located in the groove 5 41 on groove 1 and shift fork 34 installation head 21 on shift fork one 2 installation head 21; Accomplish the process of block selecting, when fork shaft 1 moved axially, shift fork 23 again can be along with fork shaft 1 moves axially together; And do not stir shift fork 1 and shift fork 34, accomplish the process of gearshift; When fork shaft 1 circumferentially rotates; Fork shaft 1 turns to and makes choosing gearshift plate 1 and choosing gearshift plate 26 can act on the installation head 21 of shift fork 34 at the cell wall that is arranged with shift fork 34; And choosing gearshift plate 1 and choosing gearshift plate 26 the cell wall that is arranged with shift fork 1 and shift fork 23 groove places can be corresponding respectively be located in the groove 3 31 on groove 2 25 and shift fork 23 installation head 21 on shift fork one 2 installation head 21; Accomplish the process of block selecting, when fork shaft 1 moved axially, shift fork 34 again can be along with fork shaft 1 moves axially together; And do not stir shift fork 1 and shift fork 23, accomplish the process of gearshift.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used 1, fork shaft morely; 111, locating slot one; 2, shift fork one; 21, installation head; 22, shifting fork bar; 23, mounting hole; 24, groove one; 25, groove two; 3, shift fork two; 31, groove three; 32, groove four; 4, shift fork three; 41, groove five; 42, groove six; 5, choosing gearshift plate one; 6, choosing gearshift plate two; 7, latch one; 71, restraining groove one; 72, restraining groove three; 8, latch two; 81, restraining groove two; 82, restraining groove four; 9, back-up ring one; 10, back-up ring two; 11, self-locking grooves; 12, holding down bolt; 13, term such as AMT case of transmission, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (10)
1. selector fork assembly that is used for the AMT speed changer; Comprise fork shaft (1) and some fork shaft (1) upper shift forks that is set in; Be provided with choosing gearshift plate between described fork shaft (1) and the shift fork; Described choosing gearshift plate one side is fixed on the described fork shaft (1) through the axial direction of a fixed structure along fork shaft (1), is provided with between described choosing gearshift plate and the shift fork to work as one of them shift fork is moved axially behind the rotation fork shaft (1) along with fork shaft (1) and other shift fork can't be along with axially movable gear shift mechanism.
2. the selector fork assembly that is used for the AMT speed changer according to claim 1; It is characterized in that; The quantity of described shift fork is three; Be shift fork one (2), shift fork two (3) and shift fork three (4), described shift fork one (2), shift fork two (3) and shift fork three (4) include the have mounting hole installation head (21) of (23) and the turning lever that is solidly fixed with installation head (21), and the mounting hole (23) of said installation head (21) all is set on the above-mentioned fork shaft (1).
3. the selector fork assembly that is used for the AMT speed changer according to claim 2; It is characterized in that; Described gear shift mechanism comprises and is opened on the choosing gearshift plate opposite side three grooves, is opened in groove one (24) and groove two (25) on mounting hole (23) hole wall of shift fork one (2), is opened in groove three (31) and the groove four (32) on mounting hole (23) hole wall of shift fork two (3) and is opened in groove five (41) and the groove six (42) on mounting hole (23) hole wall of shift fork three (4); Described groove one (24) and groove five (41) to offer direction identical; Said groove two (25) and groove three (31) to offer direction identical, said groove four (32) and groove six (42) to offer direction identical; The installation head (21) of described shift fork one (2), shift fork two (3) and shift fork three (4) is separately positioned in three grooves, and the installation head (21) of described shift fork one (2), shift fork two (3) and shift fork three (4) can be resisted against respectively on the cell wall of groove separately; The groove depth of described groove one (24), groove two (25), groove three (31), groove four (32), groove five (41) and groove six (42) is all greater than the groove depth of groove.
4. according to claim 1 or the 2 or 3 described selector fork assemblies that are used for the AMT speed changer, it is characterized in that the quantity of described choosing gearshift plate is two, two are selected the gearshift plate to be symmetrical set with respect to the shaft axis of fork shaft (1).
5. the selector fork assembly that is used for the AMT speed changer according to claim 3; It is characterized in that; The quantity of described groove one (24), groove two (25), groove three (31), groove four (32), groove five (41) and groove six (42) is two, and five (41) and two grooves six (42) of four (32), two grooves of three (31), two grooves of two (25), two grooves of one (24), two groove of two grooves all are symmetrical set with respect to separately mounting hole (23) the hole heart.
6. the selector fork assembly that is used for the AMT speed changer according to claim 2; It is characterized in that; Described fixed structure comprises locating slot one (111) and locating slot two, latch one (7) and the latch of offering along fork shaft (1) axial direction two (8); Described two choosing gearshift plate one sides are separately positioned in locating slot one (111) and the locating slot two, and two choosing gearshift plate opposite sides stretch out locating slot one (111) and locating slot two respectively; Described latch one (7) and latch two (8) are symmetricly set between the installation head (21) of fork shaft (1) and shift fork one (2), shift fork two (3) and shift fork three (4), and two blocks of above-mentioned choosing gearshift plates all are between latch one (7) and the latch two (8) and with latch one (7) and latch two (8) and lean.
7. the selector fork assembly that is used for the AMT speed changer according to claim 6; It is characterized in that; The length of described choosing gearshift plate is identical with the flute length of locating slot one (111) and locating slot two, and the thickness of described choosing gearshift plate is identical with the groove width of locating slot one (111) and locating slot two.
8. the selector fork assembly that is used for the AMT speed changer according to claim 6 is characterized in that, described latch one (7) and latch two (8) are provided with and can prevent that both are along the axially movable axial limiting structure of fork shaft (1); Described limit structure comprise be opened in latch one (7) and latch two (8) wherein restraining groove one (71) and the restraining groove two (81) on the end, offer restraining groove three (72) and restraining groove four (82), back-up ring one (9) and back-up ring two (10) on latch one (7) and latch two (8) the other ends; Described restraining groove one (71) and restraining groove two (81) and restraining groove three (72) and restraining groove four (82) all are symmetrical set with respect to fork shaft (1); Described back-up ring one (9) the inner is set in restraining groove one (71) and the restraining groove two (81), and described restraining groove one (71) is stretched out in the outer end of back-up ring one (9) and restraining groove two (81) leans with an end that selects the gearshift plate; Described back-up ring two (10) the inners are set in restraining groove three (72) and the restraining groove four (82), and described restraining groove three (72) is stretched out in the outer end of back-up ring two (10) and restraining groove four (82) leans with the other end that selects the gearshift plate.
9. according to claim 2 or the 3 described selector fork assemblies that are used for the AMT speed changer, it is characterized in that described shift fork one (2), shift fork two (3) and shift fork three (4) are all one-body molded through the mode of forging.
10. according to claim 1 or the 2 or 3 described selector fork assemblies that are used for the AMT speed changer, it is characterized in that, offer some ringwise self-locking grooves (11) on the described fork shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124800 CN202579993U (en) | 2012-03-29 | 2012-03-29 | Shifting fork component applied to automated mechanical transmission (AMT) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220124800 CN202579993U (en) | 2012-03-29 | 2012-03-29 | Shifting fork component applied to automated mechanical transmission (AMT) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202579993U true CN202579993U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220124800 Expired - Fee Related CN202579993U (en) | 2012-03-29 | 2012-03-29 | Shifting fork component applied to automated mechanical transmission (AMT) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202579993U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056576A (en) * | 2012-12-20 | 2013-04-24 | 重庆市永川区飞达机械有限责任公司 | Clutch shift fork shaft and shift fork welding tool |
| CN103244666A (en) * | 2013-05-27 | 2013-08-14 | 陕西法士特齿轮有限责任公司 | Transmission gear shifting operation mechanism |
-
2012
- 2012-03-29 CN CN 201220124800 patent/CN202579993U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103056576A (en) * | 2012-12-20 | 2013-04-24 | 重庆市永川区飞达机械有限责任公司 | Clutch shift fork shaft and shift fork welding tool |
| CN103056576B (en) * | 2012-12-20 | 2015-10-21 | 重庆市永川区飞达机械有限责任公司 | A kind of clutch shifter axle and shift fork welding tool |
| CN103244666A (en) * | 2013-05-27 | 2013-08-14 | 陕西法士特齿轮有限责任公司 | Transmission gear shifting operation mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140329 |