CN103062385A - Shift control mechanism of transmission - Google Patents
Shift control mechanism of transmission Download PDFInfo
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- CN103062385A CN103062385A CN2012105742009A CN201210574200A CN103062385A CN 103062385 A CN103062385 A CN 103062385A CN 2012105742009 A CN2012105742009 A CN 2012105742009A CN 201210574200 A CN201210574200 A CN 201210574200A CN 103062385 A CN103062385 A CN 103062385A
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- shift
- fork
- gear
- range fork
- shifting cam
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Abstract
The invention relates to a shift control mechanism of a transmission. The shift control mechanism comprises a first shift lever, a second shift lever, a third shift lever and a fourth shift lever, wherein a first shift fork and a first shift drive fork are matched on the upper portion of the first shift lever, a second shift fork and a second shift drive fork are matched on the lower portion of the second shift lever, the lower portions of the third shift lever and the fourth shift lever are matched with a third shift drive fork respectively, and a third shift fork is matched on the upper portion of the fourth shift lever. The shift control mechanism is characterized in that a shift block is composed of a shift finger and a shift cam, a mounting hole is arranged at the center of the shift cam, a shift shaft is perpendicular to the fourth shift lever and matched with the mounting hole on the shift cam, and the shift finger is positioned between inner sides of the first shift fork, the second shift fork and the third shift fork. The shift control mechanism is simple in structure, and capable of achieving shift interlocking and gear selection before dislocating, reducing shift time, and improving safety and service efficiency of the transmission.
Description
Technical field
The present invention relates to transmission components, be specifically related to a kind of shift gear operation mechanism of speed variator, can be used for manual control speed changer or automatic operation transmission.
Background technique
Shift gear operation mechanism of speed variator generally also claims gear selection mechanism.The gear-shift transmission of manual control sliding gear or slip engaging cover type and the gearshift mechanism that is used for the selection gear shift of this speed changer are well-known prior aries.In recent years, the shift gear operation mechanism of speed variator of this sliding gear or slip engaging cover type many improvement had been done.As for the structure of the housing assembly of simplifying speed changer and reduce its manufacturing expense, it is the gear of rectangle that people have adopted cross section, also is flat gear and speed change lever, and this point is by known to everybody.See also U. S. Patent No. 4273004.In existing technology, the use of the mutual interlocking gear of pin or ball-type has been very much general, and these have been included in U. S. Patent No. 3387501; In the 4120212nd and No. 4296642.Although these mutual interlocking gears are gratifying in function, and be not suitable with all types of gearshift mechanisms or for making and installing, often very complicated or consumes expensive.In the prior art, the interlocking of transmission control realizes by the mutual interlocking gear of ball-type and pin that generally although this prior art can well adapt to some situation, interlocking is reliable, its complex structure, and the assembling trouble, and fault-tolerance is relatively poor.Therefore, still need to provide a kind of simple, reliable gearshift mechanism, in order to obtain needed safe variable motion, make can be easy between the different gears the realization interlocking, guarantee the security of operation of speed changer.
Summary of the invention
The purpose of this invention is to provide a kind of transmission shifter operating mechanism, it is simple in structure, can realize the gear shift interlocking, and locking is reliable; Can also be implemented in before gear selecting out of supply, reduce shift time, improve switching speed, shorten power interruption time, improve Security and the utilization efficiency of speed changer.
A kind of shift gear operation mechanism of speed variator of the present invention comprises being located on the case of transmission and at the first shift level, the second shift level, the 3rd shift level and the 4th shift level of space parallel; Be combined with the first range fork and the first reverse shift fork in the middle and upper part of described the first shift level, be combined with the second range fork and the second reverse shift fork in the middle and lower part of described the second shift level, the bottom of described the 3rd shift level and the 4th shift level cooperates with the 3rd reverse shift fork respectively, is combined with the 3rd range fork in the middle and upper part of described the 4th shift level; It is characterized in that:
One shift block is referred to consist of with shifting cam by gear shift, is provided with mounting hole at the center of described shifting cam; One shift shaft is vertical with the 4th shift level, and cooperates with mounting hole on the described shifting cam; Described gear shift refers between two inboards of the first range fork, the second range fork and the 3rd range fork; Described gear shift refers to the inboard shape of the outer shape of shifting cam and the first range fork, the second range fork and the 3rd range fork adaptive mutually.
Described a kind of shift gear operation mechanism of speed variator, its described shifting cam radially be provided with dead slot, a side of this dead slot is that front shifting cam, opposite side are rear shifting cam, and front shifting cam is corresponding with rear shifting cam.
Described a kind of shift gear operation mechanism of speed variator, the shape of its described first range fork, the second range fork and the 3rd range fork is flat, and width is equal, and stretches in the case of transmission.
Described a kind of shift gear operation mechanism of speed variator, the width of its described first range fork, the second range fork and the 3rd range fork all is slightly less than the width of the dead slot of described shifting cam, and the length of described the first range fork, the second range fork and the 3rd range fork is all less than the degree of depth of described dead slot.Do not interfere when cooperating with assurance, and can realize spacing effect, guarantee the gear that accurately safe extension to need.
The present invention and shifting of transmission assembly are used, by be fixed on the shifting shaft shift block be fixed in gear level on the cooperating of selector fork, under the prerequisite of the space layout that does not change original mechanism and matching relationship, alteration of form to shift block and selector fork in the existing mechanism is realized the gear shift interlocking, thereby has replaced the structure of ball-type of the prior art or pin.
Main feature of the present invention is to realize the active interlocking of gear, and the realization of interlocking function mainly is to refer to that by described gear shift the design with corresponding reverse shift fork guarantees with shifting cam.
In the structure of the present invention, gear shift refers to be designed to suitable curve with shifting cam with the corresponding mating part that contacts of reverse shift fork in gearshift procedure, and two-part curve profile that cooperatively interacts is identical, to guarantee to advance in the situation of grade function not affecting the original promotion of shift block, realize the gear interlock function.
The present invention can also omit the gear selecting time in the gearshift procedure with the gear selecting arrangement of the exercise before out of supply, improved to a certain extent switching speed, has shortened power interruption time, thereby has improved power character and gear shift travelling comfort.On structure, pattern of the present invention is more simple, and assembling is simple, has simplified the assembly technology flow process, has improved to a certain extent assurance ability and the reliability of quality of product.
Advantage of the present invention refers to realize with shifting cam by gear shift, at the gear shift shaft gear shift has been installed and has referred to, gear shift refers to vertically upwards install, and near reverse shift fork one side, in its rightabout both sides two shifting cams is installed.Gear shift refers to be designed to curve with the edge of shifting cam, and is consistent with the curve profile of reverse shift fork inboard, by the initiatively interlocking of effective cooperation realization of the position between them.During gear shift, gear shift refers to from middle neutral position as requested to a side shifting, realizes shelves, and shifting cam moves to opposite side simultaneously, cooperates with the reverse shift fork that requires without gear, and it is locked at neutral position, thereby realizes initiatively interlocking.
Characteristics of the present invention are to realize initiatively interlocking, and are simple in structure, interlocking is respond well, and with the gear selecting arrangement of the exercise before out of supply, removed the gear selecting time in the gearshift procedure, improved switching speed, shortened power interruption time.
Description of drawings
Fig. 1 is speed changer when being in the neutral gear neutral position, the position view of shift block of the present invention and range fork;
Fig. 2 is the axonometric drawing of shift block of the present invention;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the plan view of Fig. 3;
Fig. 6 is that entire vehicle gear is arranged exemplary plot;
Gearshift schematic representation when Fig. 7 is neutral;
The schematic representation of (out of supply 1) when Fig. 8 is the heteropleural gear shift;
The schematic representation of (out of supply 2) when Fig. 9 is the homonymy gear shift;
Figure 10 is the schematic representation that gearshift mechanism is in the lock position.
Among the figure: the 2-gear shift refers to, 3-shifting cam (rear shifting cam 3a, front shifting cam 3b), 4-shift block, the 5-dead slot, 6-mounting hole, 7-the 3rd reverse shift fork, 8-the second reverse shift fork, 10-the first reverse shift fork, 11-the first shift level, 12-the second shift level, 13-the 3rd shift level, 14-shift shaft, 15-the first range fork, 16-the second range fork, 17-the 3rd range fork, 18-the 4th shift level.
Embodiment
The present invention is further illustrated for following structure accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of shift gear operation mechanism of speed variator comprises being located on the case of transmission and at the first shift level 11, the second shift level 12, the 3rd shift level 13 and the 4th shift level 18 of space parallel; Be combined with the first range fork 15 and the first reverse shift fork 10 in the middle and upper part of described the first shift level 11, be combined with the second range fork 16 and the second reverse shift fork 8 in the middle and lower part of described the second shift level 12, the bottom of described the 3rd shift level 13 and the 4th shift level 18 cooperates with the 3rd reverse shift fork 7 respectively, described the 4th shift level 18 the middle and upper part be combined with the 3rd range fork 17; Its structural feature is:
One shift block 4 by gear shift refer to 2 and shifting cam 3 consist of, be provided with mounting hole 6 at the center of described shifting cam 3; One shift shaft 14 is vertical with the 4th shift level 18, and cooperates with mounting hole 6 on the described shifting cam 3; Described gear shift refers to 2 between two inboards of the first range fork 15, the second range fork 16 and the 3rd range fork 17; Described gear shift refer to 2 and the inboard shape of the outer shape of shifting cam 3 and the first range fork 15, the second range fork 16 and the 3rd range fork 17 adaptive mutually.
Further, described shifting cam 3 radially be provided with dead slot 5, a side of this dead slot 5 is that front shifting cam 3b, opposite side are rear shifting cam 3a, and front shifting cam is corresponding with rear shifting cam.
Further, the shape of described the first range fork 15, the second range fork 16 and the 3rd range fork 17 is flat, and width is equal, and stretches in the case of transmission.
Further, the width of described the first range fork 15, the second range fork 16 and the 3rd range fork 17 all is slightly less than the width of the dead slot 5 of described shifting cam 3, and the length of described the first range fork 15, the second range fork 16 and the 3rd range fork 17 is all less than the degree of depth of described dead slot 5.Do not interfere when cooperating with assurance, and can realize spacing effect, guarantee the gear that accurately safe extension to need.
The present invention relates to each selector fork and is fixed on the corresponding gear level, with the movement campaign of gear level, hangs gear into requirement with the motion that drives synchronizer; Each selector fork also is fixed on the corresponding gear level, and arranged superposed cooperates with shift block side by side, drives the movement of gear level with the rotation of shift block; Shifting shaft is perpendicular to selector fork, and cooperates with mounting hole on the shift block, and this shift block is referred to consist of with shifting cam by gear shift, is fixed on the shifting shaft, between two inboards of selector fork; Shift block can be selected the gear positions that requires with the movement of shifting shaft, and rotates with shifting shaft, has reached the function that promotes selector fork.
During gear shift, gear shift refers to the curve fitting at the narrower place of outside curve and reverse shift fork upper end, can promote the reverse shift fork transverse shifting, drives range fork and moves, and realizes shelves and the function of moving back shelves; Shifting cam outside curve matches with wider place, range fork lower end inside curve, also can promote the range fork transverse shifting; Gear shift refers to match with range fork simultaneously with shifting cam, can realize the movement of range fork, realizes locking gear level.
For convenience of description, some term be adopted, but its meaning can not be limited at this point." homonymy gear shift " refers to that the gear that withdraws from and the gear that will enter are in same side that gear shift refers to; " heteropleural gear shift " refers to that the gear that withdraws from and the gear that will enter are in both sides that gear shift refers to.Entire vehicle gear is as pressing the layout of Fig. 6, and " homonymy gear shift " can be exemplified as 2 grades and change 4 grades, and " heteropleural gear shift " 2 grades changed 3 grades.Above-mentioned terminological interpretation can be used for the change justice of the above-mentioned term of mentioning especially, on the similar term that also goes for looking like.
The invention provides a kind of simple mutual interlocking gear, specifically can be referring to shown in Fig. 1,2,3,4,5.In concrete the use, the present invention can drive by external agency, such as motor, pneumatic, hydraulic drive mechanism etc., drives shift shafts 14 rotations by these driver parts, and then drives shift block 2 and rotate.Shift block is installed on the shift shaft, is referred to form with cam one out of supply by gear shift.Shifting cam is both sides below shift block, are divided into shifting cam 3a behind the front shifting cam 3b.Gear shift refers to shifting cam in rotary course, its outer counter can with the inside curve concentric fit of the first reverse shift fork 15, the second reverse shift fork 16, the 3rd reverse shift fork 17, can effectively cooperate by position mutual between them and to realize initiatively interlocking.
Gear shift of the present invention and latch functions can be by Fig. 7, Fig. 8, Fig. 9, Figure 10 explanations.For convenience of description, suppose the gear layout of speed changer as shown in Figure 6, at first gear shift refers to get back to first " neutral position ", perhaps its initial position is in the neutral position, as shown in Figure 7, thereafter shift shaft is by the transforming gear requirement, move along axis and to make gear shift refer to move on to change to the gear shift groove of gear shift shift fork, the reverse shift fork that this moment, former extension filed keeps motionless, and then shift shaft and the shift block on it are rotated according to the direction that will change to shelves, if speed changer is in a grade state before, then realize first out of supply, this moment shift block upper end gearshift refer to or the curved profile of the cam out of supply of lower end will hang first the slide rail that files to the neutral position (neutral gear) mobile, realize out of supply.Can be divided into two kinds of situations this moment:
(1) when the range fork that changes to shelves is consistent with the range fork moving direction of throwing off shelves, when advancing 3 grades by 2 grades, the cooperation position of shifting cam and the first range fork 15, the second selector fork 16 as shown in Figure 8 at this moment, shifting cam cooperates with the first range fork 15, promote 2 grades of the first selector fork 15 motion realizations and move back shelves, simultaneously gearshift refers to cooperate with the second selector fork 16, promote 16 motions of the second selector fork, thereby make 3 grades of realizations advance shelves, mainly promote the first selector fork 15 by the shifting cam upper end in the case and realize out of supply.
(2) when the reverse shift fork that changes to shelves is opposite with the reverse shift fork moving direction of throwing off shelves, when advancing 4 grades by 2 grades, cooperating as shown in Figure 9 of this moment gearshift and the first selector fork 15, the second selector fork 16, shifting cam cooperates with the first range fork 15, promote 2 grades of the first selector fork 15 motion realizations and move back shelves, simultaneously gearshift refers to cooperate with the second selector fork 16, promote 16 motions of the second selector fork, thereby make 4 grades of realizations advance shelves, mainly promote the first range fork 15 by the shifting cam lower end in the case and realize out of supply.
When finish under the drive of range fork at shifting cam out of supply in, shift shaft is rotated further, gear shift refers to that the range fork that promotes hanging gear moves, realize shelves, the cylinder of meanwhile two sections circular arcs formation of cam out of supply and the circular arc of other two range fork lower ends are realized concentric fit, the gear shift groove of all slide rails the slide rail that refers to the place except gear shift is locked on the neutral position, as shown in figure 10, thereby realizes initiatively interlocking.
The present invention can realize the effective interlocking between different gears.By the design of shifting cam and range fork molded line, utilize realize cooperating between simple cam face and the range fork into shelves with move back shelves.The present invention is simple in structure, and self-locking is respond well, can handle with shifting of transmission manually or automatically.The present invention is not limited only to the example of this explanation statement; for example when gear increases or sliding distance when increasing; can increase the axial movement length of shifting cam; or on shift shaft, can arrange two groups of shift block and cam out of supply; perhaps Transmission gear is arranged different and the specifically described variation of shift process that cause, and the conversion of this kind form is all within protection scope of the present invention.Can think that all changes that all members carry out in above-described embodiment do not exceed essence and the protection domain of the claim of following just the present invention proposition in details and configuration.
Claims (4)
1. shift gear operation mechanism of speed variator comprises being located on the case of transmission and at the first shift level (11), the second shift level (12), the 3rd shift level (13) and the 4th shift level (18) of space parallel; Be combined with the first range fork (15) and the first reverse shift fork (10) in the middle and upper part of described the first shift level (11), be combined with the second range fork (16) and the second reverse shift fork (8) in the middle and lower part of described the second shift level (12), the bottom of described the 3rd shift level (13) and the 4th shift level (18) cooperates with the 3rd reverse shift fork (7) respectively, described the 4th shift level (18) the middle and upper part be combined with the 3rd range fork (17); It is characterized in that:
One shift block (4) refers to that by gear shift (2) and shifting cam (3) consist of, and are provided with mounting hole (6) at the center of described shifting cam (3); One shift shaft (14) is in and the 4th shift level (18) vertical position, cooperates with mounting hole (6) on the described shifting cam (3); Described gear shift refers to that (2) are positioned between two inboards of the first range fork (15), the second range fork (16) and the 3rd range fork (17); Described gear shift refers to that the inboard shape of the outer shape of (2) and shifting cam (3) and the first range fork (15), the second range fork (16) and the 3rd range fork (17) is adaptive mutually.
2. a kind of shift gear operation mechanism of speed variator according to claim 1, it is characterized in that: described shifting cam (3) radially be provided with dead slot (5), one side of this dead slot (5) is that front shifting cam (3b), opposite side are rear shifting cam (3a), and front shifting cam is corresponding with rear shifting cam.
3. a kind of shift gear operation mechanism of speed variator according to claim 1 and 2, it is characterized in that: the shape of described the first range fork (15), the second range fork (16) and the 3rd range fork (17) is flat, and width equates, and stretches in the case of transmission.
4. a kind of shift gear operation mechanism of speed variator according to claim 1 and 2, it is characterized in that: the width of described the first range fork (15), the second range fork (16) and the 3rd range fork (17) is all less than the width of the dead slot (5) of described shifting cam (3), and the length of described the first range fork (15), the second range fork (16) and the 3rd range fork (17) is all less than the degree of depth of described dead slot (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105742009A CN103062385A (en) | 2012-12-26 | 2012-12-26 | Shift control mechanism of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105742009A CN103062385A (en) | 2012-12-26 | 2012-12-26 | Shift control mechanism of transmission |
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|---|---|
| CN103062385A true CN103062385A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105742009A Pending CN103062385A (en) | 2012-12-26 | 2012-12-26 | Shift control mechanism of transmission |
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| CN (1) | CN103062385A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295735A (en) * | 2013-07-16 | 2015-01-21 | 上海通用汽车有限公司 | Bridge-type gear shifting fork and manufacturing method thereof |
| CN108533746A (en) * | 2018-06-20 | 2018-09-14 | 浙江吉利控股集团有限公司 | Shift-selecting and changing actuating mechanism and vehicle with it |
| CN116538248A (en) * | 2023-05-13 | 2023-08-04 | 江苏盖亚环境科技股份有限公司 | Flexible speed change mechanism of self-adaptive feedback weak disturbance intelligent sampling equipment |
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| CN1711436A (en) * | 2002-11-16 | 2005-12-21 | Zf腓德烈斯哈芬股份公司 | Shifting device for a transmission |
| CN1952446A (en) * | 2005-10-20 | 2007-04-25 | 现代自动车株式会社 | Arrangement for control of transmission unit |
| US20070131048A1 (en) * | 2005-12-14 | 2007-06-14 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Method and device for shifting gears of an automatic transmission |
| US20110252920A1 (en) * | 2010-04-15 | 2011-10-20 | Hyundai Wia Corporation | Gear Shifting Actuator and Method of Shifting Gear Ratios |
| CN102597573A (en) * | 2009-11-03 | 2012-07-18 | Zf腓德烈斯哈芬股份公司 | Shifting device for a multi-group transmission |
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2012
- 2012-12-26 CN CN2012105742009A patent/CN103062385A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711436A (en) * | 2002-11-16 | 2005-12-21 | Zf腓德烈斯哈芬股份公司 | Shifting device for a transmission |
| CN1952446A (en) * | 2005-10-20 | 2007-04-25 | 现代自动车株式会社 | Arrangement for control of transmission unit |
| US20070131048A1 (en) * | 2005-12-14 | 2007-06-14 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Method and device for shifting gears of an automatic transmission |
| CN102597573A (en) * | 2009-11-03 | 2012-07-18 | Zf腓德烈斯哈芬股份公司 | Shifting device for a multi-group transmission |
| US20110252920A1 (en) * | 2010-04-15 | 2011-10-20 | Hyundai Wia Corporation | Gear Shifting Actuator and Method of Shifting Gear Ratios |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295735A (en) * | 2013-07-16 | 2015-01-21 | 上海通用汽车有限公司 | Bridge-type gear shifting fork and manufacturing method thereof |
| CN108533746A (en) * | 2018-06-20 | 2018-09-14 | 浙江吉利控股集团有限公司 | Shift-selecting and changing actuating mechanism and vehicle with it |
| CN108533746B (en) * | 2018-06-20 | 2020-09-08 | 浙江吉利控股集团有限公司 | Gear selecting and shifting actuating mechanism and vehicle with same |
| CN116538248A (en) * | 2023-05-13 | 2023-08-04 | 江苏盖亚环境科技股份有限公司 | Flexible speed change mechanism of self-adaptive feedback weak disturbance intelligent sampling equipment |
| CN116538248B (en) * | 2023-05-13 | 2023-10-17 | 江苏盖亚环境科技股份有限公司 | Flexible speed change mechanism of self-adaptive feedback weak disturbance intelligent sampling equipment |
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Application publication date: 20130424 |