CN207131846U - One rod-type shift control mechanism - Google Patents
One rod-type shift control mechanism Download PDFInfo
- Publication number
- CN207131846U CN207131846U CN201721102768.5U CN201721102768U CN207131846U CN 207131846 U CN207131846 U CN 207131846U CN 201721102768 U CN201721102768 U CN 201721102768U CN 207131846 U CN207131846 U CN 207131846U
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- gear
- shift
- shift fork
- variable
- speed shaft
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Abstract
The utility model discloses an a kind of rod-type shift control mechanism, belong to gearbox technical field, including shift fork axle, variable-speed shaft, self-locking spring and self-locking steel ball, the shift fork axle be arranged in parallel with the variable-speed shaft, at least two shift forks are connected in the shift fork axle, each shift fork is all connected with the tooth set of shift sleeve, and the shift sleeve is arranged on the variable-speed shaft；There are multiple axially disposed shift slots, by the flexible of the self-locking spring, the self-locking steel ball realizes positioning of floating with the shift slot in the shift fork axle；The shift fork axle can axially move, and makes the shift fork drive the tooth set of the shift sleeve to be axially moveable, realizes the switching between multiple gears on the variable-speed shaft.The utility model is simple in construction, convenient use, saves space, can reduce the overall weight and cost of gearbox, and is easy to assemble, and improves production efficiency.
Description
Technical field
The utility model belongs to gearbox technical field, more particularly to an a kind of rod-type shift control mechanism.
Background technology
In harvest machinery, gearbox plays speed change and increased and turn round as the most important position of vehicle, passing power and moment of torsion
Important function.How gearbox shifts gears, and how each gear arranges and the arrangement mode of shift fork axle and shift fork directly affects speed change
The quality of case.Shift fork is the device for promoting balladeur train during gearshift, has an annular groove shift fork just to ride over this ring on balladeur train
In groove, when driver promotes gear lever, gear lever drives shift fork axle, and shift fork axle drives shift fork, and shift fork promotes gear to reach again
To speed change.
In gearshift, driver will push hard gear lever, and the V-groove in shift fork axle overcomes the top power of self-locking steel ball, extrusion from
Steel ball is locked, moves shift fork axle.When shift fork axle, which is moved to self-locking steel ball, touches next V-groove, acted in self-locking spring
Under, self-locking steel ball is pressed into V-groove automatically, at this moment gives gear lever one impact, feels driver and hang up gear, driver
Unclamp gear lever.
Operated when gear needed for a car is more, when driver shifts gears and just feel complex, because a shift fork control
Make one or two gear, a shift fork axle controls a shift fork, when causing the driver to drive more gear cars, needs not stop all around
Ground manipulates gear level, and comfort level when being driven to driver impacts.In addition, shift fork axle it is more cause gearbox inner structure compared with
For complexity, very big influence is come on the overall arrangement spatial band of gearbox, so, how to optimize gearshift turns into influence gearbox
One of deciding factor of product competitiveness in the market.
At present in wheel type harvester tool field, most widely used gearshift mode is that a shift fork axle controls a shift fork to change
The gear shifting structure form of gear, two gears of a shift fork axle general control and a neutral, such as traditional gearbox shifting mechanism,
Main transformer speed is mostly two to three shift fork axles, and simplest is two shift fork axles, controls a gear, two gears, three gears respectively and falls
Gear；The controllable gears of three shift fork axles, two gears, three gears, four gears and reverse gear, this gearshift arrangement is changed than more visible
Stroke is smaller needed for gear, but because increasing for gear results in the need for increasing more shift fork axles, it is complicated and corresponding so as to cause
A series of problems.
Prior art is the gearshift mode that a shift fork axle controls a shift fork mostly, complicated, so as to cause because of institute
The more caused design space of assembling element is needed to be limited, the spatial arrangement of gear and axle is difficult, and gearbox takes up space too big
The scheme for influenceing vehicle is arranged, and the user caused by complicated uses complexity, gearbox preponderance, cost too
Height, shop worker assemble when operating difficulties so as to cause under low production efficiency the problems such as.
Utility model content
Technical problem to be solved in the utility model is：An a kind of rod-type shift control mechanism, simple in construction, side are provided
Just use, save space, the overall weight and cost of gearbox can be reduced, and be easy to assemble, improve production efficiency.
In order to solve the above technical problems, the technical solution of the utility model is：One rod-type shift control mechanism, including shift fork
Axle, variable-speed shaft, self-locking spring and self-locking steel ball, the shift fork axle be arranged in parallel with the variable-speed shaft, in the shift fork axle respectively
At least two shift forks are connected with, each shift fork is all connected with the tooth set of shift sleeve, and the shift sleeve is arranged on institute
State on variable-speed shaft；There are multiple axially disposed shift slots in the shift fork axle, it is described by the flexible of the self-locking spring
Self-locking steel ball realizes positioning of floating with the shift slot；The shift fork axle can axially move, and make to change described in the shift fork drive
The tooth set of gear engaging sleeve is axially moveable, and realizes the switching between multiple gears on the variable-speed shaft.
As an improvement at least two shift forks include the first shift fork and the second shift fork, the first shift fork connection
The tooth set of bottom gear engaging sleeve, the tooth set of the second shift fork connection operation walking gear engaging sleeve；
The bottom gear engaging sleeve, bottom gear gear train, walking gear gear train, the work are sequentially provided with the variable-speed shaft
The tooth of industry walking gear engaging sleeve and operation gear gear train, the toothholder of the bottom gear engaging sleeve and operation walking gear engaging sleeve
Seat is solidly set on the variable-speed shaft, and the bottom gear gear train, the walking gear gear train and operation gear gear train are equal
Empty set is on the variable-speed shaft；
The bottom gear gear train includes being set to integral or affixed bottom gear driving gear and first gear, the walking
Gear gear train includes being set to integral or affixed walking and keeps off driving gear and second gear, and the operation gear gear train includes being set to
Integral or affixed operation gear driving gear and the 3rd gear, the tooth set of the bottom gear engaging sleeve are slidably mounted on the low speed
Keep off on the toothholder and the first gear of engaging sleeve, the tooth set of the operation walking gear engaging sleeve is slidably mounted on the operation row
Walk to keep off on toothholder, the second gear and the 3rd gear of engaging sleeve.
After employing above-mentioned technical proposal, the beneficial effects of the utility model are：
1) the rod-type shift control mechanism disclosed in the utility model, simple in construction, convenient use, it is empty to save design
Between, substantial amounts of space is saved for gearbox gear and shaft design arrangement, while because the optimization of operating mechanism causes gearbox
The volume occupied reduces, and greatly improves the spatial arrangement space of overall design.
2) the reason for optimizing because of operating mechanism, reduce the use of operating element, reduce the overall weight of gearbox, reach
The purpose of design loss of weight is arrived.
3) because operating mechanism is simple in construction, operating element greatly reduces, and reduces the design cost of gearbox, improves change
The profit margin of fast case.
4) because the element used in operating mechanism is less, gearbox is easy to assemble, and greatlys save installation time, improves work
The production efficiency of people.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model original state (first time neutral position state)；
Fig. 2 is the structural representation that the utility model is in walking gear state；
Fig. 3 is the structural representation that the utility model is in operation gear state；
Fig. 4 is the structural representation that the utility model is in second of neutral position state；
Fig. 5 is the structural representation that the utility model is in bottom gear state；
In figure：1- variable-speed shafts, 2- bottom gear engaging sleeves, 21- toothholders, 22- tooth sets, 3- bottom gear gear trains, 31- bottom gears
Driving gear, 32- first gears, 4- walking gear gear trains, 41- walking gear driving gears, 42- second gears, 5- operations walking
Keep off engaging sleeve, 51- toothholders, 52- tooth sets, 6- operations gear gear train, 61- operations gear driving gear, the gears of 62- the 3rd, 7- first
Shift fork, the shift forks of 8- second, 9- shift fork axles, 91- bottom gear shift slots, 92- the second neutral shift slots, 93- operations gear shift slot,
94- the first neutral shift slots, 95- walking gear shift slots, 10- self-locking steel balls, 11- self-locking springs.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As shown in figure 1, an a kind of rod-type shift control mechanism, including variable-speed shaft 1, bottom gear is sequentially provided with variable-speed shaft 1
Engaging sleeve 2, bottom gear gear train 3, walking gear gear train 4, operation walking gear engaging sleeve 5 and operation gear gear train 6, bottom gear is nibbled
The toothholder 51 of the toothholder 21 of trap 2 and operation walking gear engaging sleeve 5 is solidly set on variable-speed shaft 1, bottom gear gear train 3, walking
Keep off gear train 4 and operation keeps off 6 equal empty set of gear train on variable-speed shaft 1.
Bottom gear gear train 3 includes being set to integral or affixed bottom gear driving gear 31 and first gear 32, walking gear
Gear train 4 includes being set to integral or affixed walking and keeps off driving gear 41 and second gear 42, and operation gear gear train 6 includes being set to
The integral or affixed operation gear gear 62 of driving gear 61 and the 3rd, the tooth set 22 of bottom gear engaging sleeve 2 are slidably mounted on low speed
Keep off on the toothholder 21 and first gear 32 of engaging sleeve 2, the tooth set 52 of operation walking gear engaging sleeve 5 is slidably mounted on operation walking gear
On the toothholder 51 of engaging sleeve 5, the gear 62 of second gear 42 and the 3rd.
The tooth set 22 of bottom gear engaging sleeve 2 is connected with the first shift fork 7, and the tooth set 52 of operation walking gear engaging sleeve 5 is connected with
Second shift fork 8, the first shift fork 7 and the second shift fork 8 are each attached in same shift fork axle 9, and shift fork axle 9 be arranged in parallel with variable-speed shaft 1.
There are multiple shift slots, above-mentioned rod-type shift control mechanism also includes self-locking steel ball 10 and self-locking in shift fork axle 9
Spring 11, by the flexible of self-locking spring 11, self-locking steel ball 10 realizes positioning of floating with shift slot.In the present embodiment, gear
Groove has five, specially bottom gear shift slot 91, the second neutral shift slot 92, operation gear shift slot 93, the first neutral shift slot
94 and walking gear shift slot 95, the axial distance between two neighboring shift slot is identical, in the present embodiment preferably 8mm.When
So, the axial distance between two neighboring shift slot can also be designed as other chis by those skilled in the art according to actual conditions
It is very little.
As shown in figure 1, during original state, the tooth set 22 of bottom gear engaging sleeve 2 engages with toothholder 21, operation walking gear engagement
The tooth set 52 of set 5 engages with toothholder 51, and tooth set 22 and tooth set 52 are in neutral gear position, the neutral gear of self-locking steel ball 10 and first
Groove 94 is against now gearbox is in first time neutral position state.
As shown in Fig. 2 in an initial condition, shift fork axle 9 is moved to the left into 8mm, now, the first shift fork 7 is with moving teeth set 22
It is moved to the left 8mm to be still combined with toothholder 21, tooth set 22 is in neutral gear position, does not play gearshift, and the second shift fork 8 drives
Tooth set 52 is moved to the left 8mm, and now, tooth set 52 is not only combined with toothholder 51 but also combined with second gear 42, and tooth set 52 is in walking
Gear is put, and self-locking steel ball 10 is with walking gear shift slot 95 against now gearbox is in walking gear state.So, variable-speed shaft 1
Power can be transferred to second gear 42 through operation walking gear engaging sleeve 5, then be exported through walking gear driving gear 41.
As shown in figure 3, in an initial condition, shift fork axle 9 is moved right 8mm, now, the first shift fork 7 is with moving teeth set 22
The 8mm that moves right still is combined with toothholder 21, and tooth set 22 is in neutral gear position, does not play gearshift, and the second shift fork 8 drives
Tooth set 52 is moved right 8mm, and now, tooth set 52 is not only combined with toothholder 51 but also combined with the 3rd gear 62, and tooth covers 52 and is in operation
Gear is put, and self-locking steel ball 10 keeps off shift slot 93 against now gearbox is in operation gear state with operation.So, variable-speed shaft 1
Power can be transferred to the 3rd gear 62 through operation walking gear engaging sleeve 5, then be exported through operation gear driving gear 61.
As shown in figure 4, in an initial condition, shift fork axle 9 is moved right 16mm, now, the first shift fork 7 is with moving teeth set 22
The 16mm that moves right still is combined with toothholder 21, and tooth set 22 is in neutral gear position, does not play gearshift, and the second shift fork 8 drives band
Moving teeth set 52 is moved right 16mm, and now, tooth set 52 is combined with the 3rd gear 62, and tooth set 52 departs from toothholder 51, and tooth is covered at 52
In neutral gear position, do not play gearshift, the neutral shift slot 92 of self-locking steel ball 10 and second is against now gearbox is in second
Neutral position state.
As shown in figure 5, in an initial condition, shift fork axle 9 is moved right 24mm, now, the first shift fork 7 is with moving teeth set 22
Moved right 24mm, and tooth set 22 is combined with toothholder 21 and first gear 32 simultaneously, and tooth set 22 is in bottom gear position, second group
Fork 8 drives band moving teeths set 52 to move right 24mm, and now, tooth set 52 is combined with the 3rd gear 62, and tooth covers 52 and departed from toothholder 51,
Tooth set 52 is in neutral gear position, does not play gearshift, self-locking steel ball 10 is with bottom gear shift slot 91 against now gearbox is in
Bottom gear state.So, the power of variable-speed shaft 1 can be transferred to first gear 32 through bottom gear engaging sleeve 2, then through bottom gear actively
Gear 31 exports.
It is above-mentioned that two shift forks are set in shift fork axle 9, it is possible to achieve the switching between three gears and two neutrals.Need
Illustrate, those skilled in the art can also be set multiple shift forks, set on variable-speed shaft according to actual conditions in shift fork axle
Corresponding shift sleeve and power shift gear group are put, when shift fork axle is axially moveable, shift fork is driven the tooth of shift sleeve
Set is axially moveable, and realizes the switching between multiple gears on variable-speed shaft.
Rod-type shift control mechanism provided by the utility model, simple in construction, convenient use, space is saved, can be reduced
The overall weight and cost of gearbox, and be easy to assemble, improve production efficiency.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (2)
1. a rod-type shift control mechanism, including shift fork axle, variable-speed shaft, self-locking spring and self-locking steel ball, it is characterised in that described
Shift fork axle is be arranged in parallel with the variable-speed shaft, and at least two shift forks are connected in the shift fork axle, and each shift fork is equal
The tooth set of shift sleeve is connected, the shift sleeve is arranged on the variable-speed shaft；
There are multiple axially disposed shift slots in the shift fork axle, pass through the flexible of the self-locking spring, the self-locking steel
Ball realizes positioning of floating with the shift slot；
The shift fork axle can axially move, and make the shift fork drive the tooth set of the shift sleeve to be axially moveable, and realize
Switching on the variable-speed shaft between multiple gears.
2. rod-type shift control mechanism according to claim 1, it is characterised in that at least two shift forks include the
One shift fork and the second shift fork, the tooth set of the first shift fork connection bottom gear engaging sleeve, the second shift fork connection operation walking
Keep off the tooth set of engaging sleeve；
The bottom gear engaging sleeve, bottom gear gear train, walking gear gear train, the operation row are sequentially provided with the variable-speed shaft
Walk to keep off engaging sleeve and operation gear gear train, the toothholder that the toothholder of the bottom gear engaging sleeve and operation walking keep off engaging sleeve is equal
It is solidly set on the variable-speed shaft, the bottom gear gear train, the walking gear gear train and the operation gear equal empty set of gear train
On the variable-speed shaft；
The bottom gear gear train includes being set to integral or affixed bottom gear driving gear and first gear, the walking gear tooth
Wheel group includes being set to integral or affixed walking and keeps off driving gear and second gear, and the operation gear gear train includes being set to one
Or affixed operation gear driving gear and the 3rd gear, the tooth set of the bottom gear engaging sleeve are slidably mounted on the bottom gear and nibbled
On the toothholder of trap and the first gear, the tooth set of the operation walking gear engaging sleeve is slidably mounted on the operation walking gear
On the toothholder of engaging sleeve, the second gear and the 3rd gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102768.5U CN207131846U (en) | 2017-08-30 | 2017-08-30 | One rod-type shift control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721102768.5U CN207131846U (en) | 2017-08-30 | 2017-08-30 | One rod-type shift control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131846U true CN207131846U (en) | 2018-03-23 |
Family
ID=61636969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721102768.5U Active CN207131846U (en) | 2017-08-30 | 2017-08-30 | One rod-type shift control mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022152196A1 (en) * | 2021-01-18 | 2022-07-21 | Ningbo Geely Automobile Research & Development Co., Ltd. | A transmission |
| CN110296185B (en) * | 2019-08-06 | 2024-01-30 | 特百佳动力科技股份有限公司 | Heavy-duty gearbox |
-
2017
- 2017-08-30 CN CN201721102768.5U patent/CN207131846U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296185B (en) * | 2019-08-06 | 2024-01-30 | 特百佳动力科技股份有限公司 | Heavy-duty gearbox |
| WO2022152196A1 (en) * | 2021-01-18 | 2022-07-21 | Ningbo Geely Automobile Research & Development Co., Ltd. | A transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai leiwo Heavy Industry Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: LOVOL HEAVY INDUSTRY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee after: Weichai Lovol Intelligent Agricultural Technology Co.,Ltd. Address before: 261206 No. 192 South Beihai Road, Fangzi District, Shandong, Weifang Patentee before: Weichai leiwo Heavy Industry Co.,Ltd. |