CN200993229Y - Divider box high-low gear preshift mechanism - Google Patents
Divider box high-low gear preshift mechanism Download PDFInfo
- Publication number
- CN200993229Y CN200993229Y CN 200620172706 CN200620172706U CN200993229Y CN 200993229 Y CN200993229 Y CN 200993229Y CN 200620172706 CN200620172706 CN 200620172706 CN 200620172706 U CN200620172706 U CN 200620172706U CN 200993229 Y CN200993229 Y CN 200993229Y
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- China
- Prior art keywords
- gear
- shift
- tooth
- transfer case
- shifting fork
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a transfer tank high and low gear pre gear shifting mechanism, which includes a shifting fork shaft and a shifting fork, the shifting fork shaft passes through a leading movable stand, one section of the shifting fork is provided with a slide gear sleeve, the shifting fork is connected with the slide gear sleeve, a spring is provided between the shifting fork and the leading movable stank. The mechanism has a simple structure, a convenient operation, which can effectively solve the problems of that all the shafts can not freely rotate in the transfer tank because the vehicle is in the rest condition during the shifting process, the internal teeth of the slide gear sleeve and the outside teeth of a soldered gear easily form the tooth to tooth situation when the slide gear sleeve moves to the soldered gear, and a transition gear can not axially move for influencing the shifting.
Description
Technical field
The utility model belongs to the gearshift mechanism of vehicle gear box, is specifically related to a kind of pre-gear shift mechanism of transfer case high and low shift.
Background technique
All the time, off-road vehicle, the engineering vehicle of the need of China's domestic production equipments transfer case, the transfer case that two gears is set for need all need be provided with the high and low shift gearshift mechanism of transfer case.Adopt shifter collar slip gear shift at present mostly between the high and low shift constant mesh gear, minority adopts synchronizer shift.As shown in Figure 1 and Figure 2; Sliding gear collar in the structure promotes to move axially the purpose that reaches gear shift by the high and low shift reverse shift fork that the high and low shift gearshift mechanism drives.In gearshift procedure, because vehicle remains static, each of transfer case spool all can not freely be rotated, when sliding gear collar moves to soldered tooth, the internal tooth of sliding gear collar and the external tooth of soldered tooth form the situation of tooth to tooth easily, and the tooth cover that moves can not axially move, shown in Fig. 3 (a).At this moment,, internal tooth and external tooth are staggered, can insert corresponding gear smoothly as long as soldered tooth and sliding gear collar relatively rotate a very little angle.10-sliding gear collar among the figure; The low-grade gear of 11-; The high gear of working as of 12-; The low-grade gear engagement tooth of 13-; The high-grade gear engagement tooth of 14-.
Summary of the invention
The purpose of this utility model is to provide a kind of transfer case high and low shift pre-gear shift mechanism that can realize the smooth gear shift of high and low shift when vehicle stationary state.
The technical solution of the utility model is: transfer case high and low shift pre-gear shift mechanism, and it comprises declutch shift shaft, shift fork, described declutch shift shaft passes the guiding movable stand, declutch shift shaft is provided with sliding gear collar for one section, and shift fork is connected with sliding gear collar, establishes spring between shift fork and guiding movable stand.
This mechanism structure is simple, easy to operate, can solve effectively in gearshift procedure, because vehicle remains static, each of transfer case spool all can not freely be rotated, when sliding gear collar moved to soldered tooth, the internal tooth of sliding gear collar and the external tooth of soldered tooth formed the situation of tooth to tooth easily, and the tooth cover that moves can not axially move influences the problem of gear shift.
Description of drawings
Fig. 1 shifter collar gearshift mechanism figure.
Fig. 2 synchronizer shift structural drawing.
Fig. 3 (a) is relative to the tooth schematic representation in conjunction with tooth and sliding gear collar.
Fig. 3 (b) is in conjunction with the relative dislocation schematic representation of tooth with sliding gear collar.
Fig. 4 transfer case high and low shift pre-gear shift mechanism schematic representation
Embodiment
As shown in Figure 4, the output terminal 1 of the external operating mechanism of transfer case is connected with guiding movable stand 2.Guiding movable stand 2 is " U " type.Declutch shift shaft 3 passes guiding movable stand 2.Declutch shift shaft is provided with sliding gear collar 4 for 3 one sections.The sliding sleeve end of sliding gear collar 4 stretches in the guiding movable stand 2, and shift fork 5 is connected with sliding gear collar 4.Be equipped with spring 6,7 between shift fork 5 both sides and the guiding movable stand 2.
The working principle of this grade pre-gear shift mechanism is: drive shift fork guiding movable stand and move axially when the external operating mechanism of transfer case moves, because there be the situation of tooth to tooth in the internal tooth of sliding gear collar and the external tooth of soldered tooth, sliding gear collar can't be realized moving axially, thereby shift fork does not move axially with it, spring between guiding movable stand and shift fork is compressed accumulation of energy at this moment, external operating mechanism shows, transfer case has been changed top grade or low grade, and actual in transfer case inside, sliding gear collar and the gear shift of being unrealized action.When the timely vehicle start of driver, engine power reaches the input shaft of transfer case through output shaft of gear-box with power, and drives soldered tooth rotation, sense of rotation shown in Fig. 3 (a).After soldered tooth rotated, the internal tooth tooth top of the external tooth of soldered tooth and sliding gear collar staggered, shown in Fig. 3 (b), in the effect of preloading spring power.
Claims (4)
1, a kind of transfer case high and low shift pre-gear shift mechanism, it comprises declutch shift shaft, and shift fork is characterized in that described declutch shift shaft passes the guiding movable stand, and declutch shift shaft is provided with sliding gear collar for one section, and shift fork is connected with sliding gear collar, establishes spring between shift fork and guiding movable stand.
2, transfer case high and low shift pre-gear shift mechanism according to claim 1, the movable stand that it is characterized in that leading is connected with the output terminal of the external operating mechanism of transfer case.
3, transfer case high and low shift pre-gear shift mechanism according to claim 1 is characterized in that described guiding movable stand is " U " type.
4, transfer case high and low shift pre-gear shift mechanism according to claim 1 is characterized in that the shift fork both sides are equipped with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620172706 CN200993229Y (en) | 2006-12-28 | 2006-12-28 | Divider box high-low gear preshift mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620172706 CN200993229Y (en) | 2006-12-28 | 2006-12-28 | Divider box high-low gear preshift mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993229Y true CN200993229Y (en) | 2007-12-19 |
Family
ID=38946304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620172706 Expired - Lifetime CN200993229Y (en) | 2006-12-28 | 2006-12-28 | Divider box high-low gear preshift mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993229Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711895A (en) * | 2012-09-28 | 2014-04-09 | 北京航天发射技术研究所 | Serial gear shifting mechanism of transfer case |
-
2006
- 2006-12-28 CN CN 200620172706 patent/CN200993229Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711895A (en) * | 2012-09-28 | 2014-04-09 | 北京航天发射技术研究所 | Serial gear shifting mechanism of transfer case |
| CN103711895B (en) * | 2012-09-28 | 2016-08-31 | 北京航天发射技术研究所 | The tandem gearshift of transfer case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071219 |
|
| EXPY | Termination of patent right or utility model |