CN203335826U - Transmission gear shifting operation mechanism - Google Patents
Transmission gear shifting operation mechanism Download PDFInfo
- Publication number
- CN203335826U CN203335826U CN201320295949XU CN201320295949U CN203335826U CN 203335826 U CN203335826 U CN 203335826U CN 201320295949X U CN201320295949X U CN 201320295949XU CN 201320295949 U CN201320295949 U CN 201320295949U CN 203335826 U CN203335826 U CN 203335826U
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- Prior art keywords
- fork
- shift
- control panel
- shift shaft
- selector
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- Expired - Lifetime
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Abstract
The utility model discloses a transmission gear shifting operation mechanism which comprises a fork shaft, a gear selecting control board, at least two gear shifting forks and a plurality of fork limiting pins. A longitudinal groove is axially arranged in the fork shaft, the gear selecting control board is mounted in the longitudinal groove of the fork shaft and is fixed in the axial direction of the fork shaft in a transmission, the longitudinal groove of the fork shaft is longer than the gear selecting control board, a plurality of bosses are arranged on the gear selecting control board, the fork limiting pins are fixed onto the fork shaft, the gear shifting forks are freely sleeved to the fork shaft, first through grooves and second through grooves distributed in the axial direction of the fork shaft are arranged in the gear shifting forks, and the fork limiting pins and the bosses are arranged on two sides of each gear shifting fork at neutral positions. By the structural design of the forks, the fork shaft and the gear selecting control board, gear engagement of two or more than two forks can be controlled by the same fork shaft, and gears can be interlocked.
Description
[technical field]
The utility model relates to the speed changer technical field, particularly a kind of shift operating mechanism of speed changer.
[background technique]
China has the speed-changer operation technology now, and major part is all that a declutch shift shaft is controlled a shifting-fork gear-shifting, utilizes steel ball and interlocking plunger to be interlocked.In general, speed changer is according to the number of gear, design several shift forks of different gears, design several the declutch shift shafts identical with shift fork quantity, like this, cause the transmission control part various simultaneously, strengthened the speed changer space, also increased speed changer manufacture cost and speed changer weight, be unfavorable for lean production and management simultaneously, also contrary with present speed changer light-weight design trend.In addition, shift fork two fork pin are difficult for accomplishing in shape the symmetry on particularly stress and distortion, bad to shift fork intensity, easily cause the unbalance loading in shift process, affect the shift of transmission performance.
[model utility content]
The purpose of this utility model is to provide a kind of shift operating mechanism of speed changer, to solve the problems of the technologies described above.
To achieve these goals, the utility model adopts following technological scheme:
A kind of shift operating mechanism of speed changer, comprise declutch shift shaft, block selecting control panel, at least two selector forks and some shift fork position limit pins; Declutch shift shaft axially is provided with cannelure, and the block selecting control panel is arranged in the cannelure of declutch shift shaft, and the block selecting control panel along the axial restraint of declutch shift shaft, can not move axially with declutch shift shaft in speed changer, can rotate with declutch shift shaft; The cannelure length of declutch shift shaft is greater than the length of block selecting control panel, and the block selecting control panel is provided with some boss; Described some shift fork position limit pins are fixed on declutch shift shaft; Described selector fork empty set is on declutch shift shaft; Selector fork is provided with first groove axial along declutch shift shaft and the second groove; At neutral gear position, the both sides of each selector fork are equipped with shift fork position limit pin and boss.
The utility model further improves and is: when a certain gear, the both sides of a selector fork in described at least two selector forks stick two shift fork position limit pins, the second groove of this selector fork is not accommodated any one in its both sides position limit pin, and accommodates in its both sides block selecting control panel boss in the first groove of this selector fork; The both sides of all the other selector forks stick two boss, and accommodate at least one shift fork position limit pin in the second groove of all the other selector forks.
The utility model further improves and is: when declutch shift shaft rotates and moves axially the choosing, the engage a gear that carry out a certain gear and operates, the a certain boss of gearshift control panel proceeds in the first groove that this gear shift fork is corresponding, while, two shift fork position limit pins were stuck in the both sides of this gear shift fork, can not enter in the second groove corresponding with it, when declutch shift shaft moves, the shift fork position limit pin plays a role in promoting it is hung into corresponding gear the selector fork be selected into; The shift fork position limit pin of all the other gears enters in the second groove with its respective notch selector fork, can not play a role in promoting to these selector forks, the boss of gearshift control panel is stuck in the both sides of these selector forks, it can not be moved axially and realizes gear interlocking.
The utility model further improves and is: block selecting control panel and each shift fork position limit pin are 180 ° of alternate installations on declutch shift shaft.
The utility model further improves and is: the block selecting control panel is Spielpassung between short transverse and declutch shift shaft cannelure.
The utility model further improves and is: the block selecting control panel is provided with the self-locking mechanism of speed changer and coordinates the self-locking grooves of carrying out the gear self-locking.
The utility model further improves and is: described the first groove takes the shape of the letter U.
The utility model further improves and is: described the second groove takes the shape of the letter U or is fan-shaped.
The utility model further improves and is: the total span of described the second groove should be looked the quantity of block selecting shift fork and be set, and is at least more than 2 times or 2 times of shift fork position limit pin thickness.
The utility model further improves and is: be fixed with the shifting guide block on described declutch shift shaft; The declutch shift shaft two end supports is in case of transmission or in transmission upper cover, and declutch shift shaft can freely move axially and rotate in the supported hole at two ends; Block selecting control panel axial position in speed changer is fixed, and is merely able to declutch shift shaft along its radial rotating.
With respect to prior art, the utlity model has following advantage:
The utility model utilizes the structural design between shift fork, declutch shift shaft and gearshift control panel, realizes meeting with same declutch shift shaft the control of putting into gear of two or more shift forks, realizes the interlocking between each gear simultaneously.
1, save cost, save space, compact structure, reduce speed changer weight.
2, the comparable conventional Shift Computation fork shaft of the design of declutch shift shaft is thick, and good rigidly is not yielding, is beneficial to and puts into gear.
But 3, shift fork symmetric design, two fork pin are stressed evenly, and distortion is consistent, avoids the unbalance loading of shift fork in shift process and causes early failue.
[accompanying drawing explanation]
Fig. 1 is the perspective view of transmission control assembly provided by the utility model;
Fig. 2 is the perspective view of declutch shift shaft assembly in transmission control provided by the utility model;
Fig. 3 is the part exploded perspective view of declutch shift shaft assembly in transmission control provided by the utility model;
Fig. 4, Fig. 5, Fig. 6 are three kinds of shift fork head through-hole structure schematic diagram that the utility model adopts;
Fig. 7 is the view that embodiment provided by the utility model is selected into the second selector fork;
Fig. 8 (a), Fig. 8 (b), Fig. 8 (c) are respectively along the sectional view of B-B line, C-C line, D-D line in Fig. 7;
Fig. 9 is the view that embodiment provided by the utility model is selected into the first selector fork;
Figure 10 (a), Figure 10 (b), Figure 10 (c) are respectively along the sectional view of B-B line, C-C line, D-D line in Fig. 9;
Figure 11 is the view that embodiment provided by the utility model is selected into the 3rd selector fork;
Figure 12 (a), Figure 12 (b), Figure 12 (c) are respectively along the sectional view of B-B line, C-C line, D-D line in Figure 11.
Wherein: the 1-declutch shift shaft; 2-block selecting control panel; 3a-the first selector fork; 3b-the second selector fork; 3c-the 3rd selector fork; 4-shift fork position limit pin; 5-shifting guide block; The 6-bolt; The 7-self-locking grooves.
[embodiment]
Referring to shown in Fig. 1 to Fig. 6, the utility model is a kind of shift operating mechanism of speed changer, comprises declutch shift shaft 1 and is arranged on block selecting control panel 2, selector fork (the first selector fork 3a, the second selector fork 3b, the 3rd selector fork 3c), shift fork position limit pin 4 and the shifting guide block 5 on declutch shift shaft 1; Block selecting control panel 2 and each shift fork position limit pin 4 are 180 ° of alternate installations on declutch shift shaft.
Block selecting control panel 2 inserts in the cannelure 10 of declutch shift shaft 1, between short transverse and declutch shift shaft 1, is Spielpassung, and cannelure 10 length of declutch shift shaft 1 are greater than the length of block selecting control panel 2, and declutch shift shaft 1 block selecting control panel 2 certain distances relatively moves axially.Block selecting control panel 2 is provided with self-locking grooves 7, can coordinate and carry out the gear self-locking with the self-locking mechanism of speed changer.
Each shift fork position limit pin 4 connects firmly on declutch shift shaft 1 by interference fit, shifting guide block 5 connects firmly on declutch shift shaft 1 by bolt 6, each selector fork empty set is on declutch shift shaft 1, the both sides of each selector fork are equipped with shift fork position limit pin 4, and block selecting control panel 2 is respectively equipped with boss 20 in the both sides of each selector fork.And the through hole that each selector fork is connected with declutch shift shaft 1 is equipped with the groove (the first groove 30, the second groove 31) of different structure, respectively in the process of putting into gear be loaded on declutch shift shaft 1 on block selecting control panel 2 and shift fork position limit pin 4 match.
1 liang of structure of looking closely speed changer of declutch shift shaft can be supported in case of transmission or in transmission upper cover, declutch shift shaft 1 can freely move axially and rotate in the supported hole at two ends, and block selecting control panel 2 in speed changer along the axial restraint of declutch shift shaft 1, can not move axially, can only rotate with declutch shift shaft.
The operation transmission gear level makes shifting guide block 5 can drive declutch shift shaft 1 and the shift fork position limit pin 4 that connects firmly on declutch shift shaft 1 is rotated and moves axially, the rotation of declutch shift shaft 1 make block selecting control panel 2 on the declutch shift shaft assembly from different selector forks in different relative positions, realize choosing of different gears, moving axially of declutch shift shaft 1, move axially and realize gear shift operation together with the shift fork that is selected into corresponding gear driving shift fork position limit pin 4.
When declutch shift shaft 1 rotates and moves axially the choosing of carrying out a certain gear, engage a gear operation, 20 of the boss of gearshift control panel 2 proceed in the first groove 30 that this gear shift fork is corresponding, while 4 both sides that just are stuck in this gear shift fork of shift fork position limit pin, can not enter in the second groove 31 corresponding with it, when declutch shift shaft 1 moves, position limit pin 4 can play a role in promoting to the selector fork be selected into it is hung into corresponding gear.4 of the shift fork position limit pins of all the other gears enter in the second groove 31 with its respective notch selector fork, can not play a role in promoting to these selector forks, the boss 20 of gearshift control panel 2 just is stuck in the both sides of these selector forks, it can not be moved axially and realizes gear interlocking.
Below with three kinds of different conditions, one by one the principle of this mechanism is described:
1, the gearshift state (be the neutral gear position of speed changer) of mechanism in the second selector fork 3b
Shown in Fig. 7 to Fig. 8 (c), now declutch shift shaft 1 in a state of nature, it is the neutral gear position of speed changer, the second selector fork 3b is in drive range, U-shaped the first groove 30 that is located at the boss 20 of block selecting control panel 2 of the second selector fork 3b both sides and the second selector fork 3b left side (seeing from back to front) over against, shift fork position limit pin 4 and second selector fork 3b right side (seeing from back to front) the second groove 31(are comprised of two U-shaped grooves) in the middle of a projection over against, as shown in C-C sectional view in Fig. 8 (b), handling shifting guide block 5 drive declutch shift shaft 1 front and back moves axially, the second selector fork 3b will cross the boss 20 of block selecting control panel 2 and moved axially with declutch shift shaft 1 front and back the operation of putting into gear under the promotion of its both sides shift fork position limit pin 4.
And now, the U-shaped first groove 30(in the first selector fork 3a and the 3rd selector fork 3c left side sees from back to front) boss 20 that all is located at the shift fork both sides with block selecting control panel 2 staggers mutually, and the shift fork position limit pin 4 of shift fork both sides is just in the second groove 31 in the first selector fork 3a and the 3rd selector fork 3c right side, when declutch shift shaft 1 moves, shift fork position limit pin 4 can not play a role in promoting to the first selector fork 3a and the 3rd selector fork 3c, as shown in B-B and D-D sectional view in Fig. 8 (a) and Fig. 8 (c).Because block selecting control panel 2 is axially fixing in speed changer, can not move, therefore, the first selector fork 3a and the 3rd selector fork 3c will, by the boss 20 of block selecting control panel 2 at axial locking, realize interlocking.
2, the gearshift state of mechanism in the first selector fork 3a
Shown in Fig. 9 to Figure 10 (c), manipulation shifting guide block 5 drive declutch shift shafts 1 turn clockwise, and ((seeing from back to front) is selected into the drive range of the first selector fork 3a, now be located at the first selector fork 3a both sides block selecting control panel 2 boss 20 and shift fork 3a left side (seeing from back to front) U-shaped the first groove 30 over against, fan-shaped second groove 31 on shift fork position limit pin 4 and the first selector fork 3a right side staggers, as shown in B-B sectional view in Figure 10 (a), handling shifting guide block 5 drive declutch shift shaft 1 front and back moves axially, shift fork 3a will cross the boss 20 of block selecting control panel 2 and moved axially with the declutch shift shaft front and back operation of putting into gear under the promotion of its both sides shift fork position limit pin 4.
Gearshift state at the first selector fork 3a, the U-shaped first groove 30(in the second selector fork 3b and the 3rd selector fork 3c left side sees from back to front) boss 20 that all is located at the shift fork both sides with block selecting control panel 2 staggers mutually, and the shift fork position limit pin 4 of shift fork both sides is just respectively in the second groove 31 in the second selector fork 3b and the 3rd selector fork 3c right side, when declutch shift shaft 1 moves, shift fork position limit pin 4 can not play a role in promoting to the second selector fork 3b and the 3rd selector fork 3c, as shown in C-C in Figure 10 and D-D sectional view.Because block selecting control panel 2 is axially fixing in speed changer, can not move, therefore, the second selector fork 3b and the 3rd selector fork 3c will, by the boss 20 of block selecting control panel 2 at axial locking, realize interlocking.
3, the gearshift state of mechanism in the 3rd selector fork 3c
Shown in Figure 11 to Figure 12 (c), handle shifting guide block 5 drive declutch shift shafts 1 and be rotated counterclockwise the drive range that (seeing from back to front) is selected into the 3rd selector fork 3c, now be located at the 3rd selector fork 3c both sides block selecting control panel 2 boss 20 and shift fork 3c left side (seeing from back to front) U-shaped the first groove 30 over against, fan-shaped second groove 31 on shift fork position limit pin 4 and the 3rd selector fork 3c right side staggers, as shown in D-D sectional view in Figure 11 (c), handling shifting guide block 5 drive declutch shift shaft 1 front and back moves axially, the 3rd selector fork 3c will cross the boss 20 of block selecting control panel 2 and moved axially with declutch shift shaft 1 front and back the operation of putting into gear under the promotion of its both sides shift fork position limit pin 4.
Gearshift state at the 3rd selector fork 3c, U-shaped first groove 30 in the first selector fork 3a and the second selector fork 3b left side (seeing from back to front) all staggers mutually with the boss 20 that block selecting control panel 2 is located at the shift fork both sides, and the shift fork position limit pin 4 of shift fork both sides is just respectively in the second groove 31 in the first selector fork 3a and the second selector fork 3b right side (seeing from back to front), when declutch shift shaft 1 moves, shift fork position limit pin 4 can not play a role in promoting to the first selector fork 3a and the second selector fork 3b, as Figure 12 (a), 12(b) shown in middle B-B and C-C sectional view.Because block selecting control panel 2 is axially fixing in speed changer, can not move, therefore, the first selector fork 3a and the second selector fork 3b will, by the boss 20 of block selecting control panel 2 at axial locking, realize interlocking.
Claims (9)
1. a shift operating mechanism of speed changer, is characterized in that, comprises declutch shift shaft (1), block selecting control panel (2), at least two selector forks and some shift fork position limit pins (4); Declutch shift shaft (1) axially is provided with cannelure (10), block selecting control panel (2) is arranged in the cannelure (10) of declutch shift shaft (1), block selecting control panel (2) is fixed along the axial position of declutch shift shaft (1) in speed changer, can not move axially with declutch shift shaft, can rotate with declutch shift shaft; Cannelure (10) length of declutch shift shaft (1) is greater than the length of block selecting control panel (2), and block selecting control panel (2) is provided with some boss (20); Described some shift fork position limit pins (4) are fixed on declutch shift shaft (1); Described selector fork empty set is on declutch shift shaft (1); Selector fork is provided with first groove (30) axial along declutch shift shaft (1) and the second groove (31); At neutral gear position, the both sides of each selector fork are equipped with shift fork position limit pin (4) and boss (20).
2. a kind of shift operating mechanism of speed changer according to claim 1, it is characterized in that, when a certain gear, the both sides of a selector fork in described at least two selector forks stick two shift fork position limit pins (4), second groove (31) of this selector fork is not accommodated any one in its both sides shift fork position limit pins (4), and accommodates in its both sides boss (20) in first groove (30) of this selector fork; The both sides of all the other selector forks stick two boss (20), and accommodate in its both sides shift fork position limit pins (4) in second groove (31) of all the other selector forks.
3. a kind of shift operating mechanism of speed changer according to claim 1, it is characterized in that, when declutch shift shaft (1) rotates and moves axially the choosing of carrying out a certain gear, engage a gear operation, the a certain boss (20) of gearshift control panel (2) proceeds in the first groove (30) that this gear shift fork is corresponding, two shift fork position limit pins (4) are stuck in the both sides of this gear shift fork simultaneously, can not enter in the second groove (31) corresponding with it, when declutch shift shaft (1) is mobile, shift fork position limit pin (4) plays a role in promoting it is hung into corresponding gear the selector fork be selected into; The shift fork position limit pin (4) of all the other gears enters in the second groove (31) with its respective notch selector fork, can not play a role in promoting to these selector forks, the boss (20) of gearshift control panel (2) is stuck in the both sides of these selector forks, it can not be moved axially and realizes gear interlocking.
4. a kind of shift operating mechanism of speed changer according to claim 1, is characterized in that, block selecting control panel (2) and each shift fork position limit pin (4) are 180 ° of alternate installations on declutch shift shaft.
5. a kind of shift operating mechanism of speed changer according to claim 1, is characterized in that, between the cannelure (10) of block selecting control panel (2) on short transverse and declutch shift shaft (1), is Spielpassung.
6. a kind of shift operating mechanism of speed changer according to claim 1, is characterized in that, block selecting control panel (2) is provided with and coordinates the self-locking grooves (7) of carrying out the gear self-locking with the self-locking mechanism of speed changer.
7. a kind of shift operating mechanism of speed changer according to claim 1, is characterized in that, described the first groove (30) takes the shape of the letter U, and described the second groove (31) takes the shape of the letter U or be fan-shaped.
8. a kind of shift operating mechanism of speed changer according to claim 1, is characterized in that, the total span of described the second groove (31) is more than 2 times or 2 times of shift fork position limit pin (4) thickness.
9. a kind of shift operating mechanism of speed changer according to claim 1, is characterized in that, is fixed with shifting guide block (5) on described declutch shift shaft (1); Declutch shift shaft (1) two end supports is in case of transmission or in transmission upper cover, and declutch shift shaft (1) can freely move axially and rotate in the supported hole at two ends; Block selecting control panel (2) can, with declutch shift shaft (1) along its radial rotating, can not move axially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320295949XU CN203335826U (en) | 2013-05-27 | 2013-05-27 | Transmission gear shifting operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320295949XU CN203335826U (en) | 2013-05-27 | 2013-05-27 | Transmission gear shifting operation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335826U true CN203335826U (en) | 2013-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320295949XU Expired - Lifetime CN203335826U (en) | 2013-05-27 | 2013-05-27 | Transmission gear shifting operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106931160A (en) * | 2015-12-29 | 2017-07-07 | 伊顿公司 | For the interlock system of speed changer punched shifting system |
-
2013
- 2013-05-27 CN CN201320295949XU patent/CN203335826U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106931160A (en) * | 2015-12-29 | 2017-07-07 | 伊顿公司 | For the interlock system of speed changer punched shifting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BAOJI FAST GEAR Co.,Ltd. Assignor: SHAANXI FAST GEAR Co.,Ltd. Contract record no.: 2014610000073 Denomination of utility model: Transmission gear shifting operation mechanism Granted publication date: 20131211 License type: Exclusive License Record date: 20140423 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |