CN101737489A - Transmission assembly special for engineering vehicle - Google Patents
Transmission assembly special for engineering vehicle Download PDFInfo
- Publication number
- CN101737489A CN101737489A CN200810237634A CN200810237634A CN101737489A CN 101737489 A CN101737489 A CN 101737489A CN 200810237634 A CN200810237634 A CN 200810237634A CN 200810237634 A CN200810237634 A CN 200810237634A CN 101737489 A CN101737489 A CN 101737489A
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- CN
- China
- Prior art keywords
- interlocking
- gear
- shift fork
- gear shift
- fork shaft
- Prior art date
- 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.)
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- Gear-Shifting Mechanisms (AREA)
Abstract
The invention relates to a transmission assembly special for an engineering vehicle, which comprises a shell (1) and an upper cover (4) arranged at the upper end of the shell (1). The upper cover (4) is horizontally provided with interlocking holes (19) of which the axial lines and the axial lines of speed shifting fork shafts are on the same horizontal plane and are vertical to each other; an interlocking block (25) is arranged in one interlocking hole (19) between the adjacent speed shifting fork shafts; the shapes of the two ends of the interlocking block (25) are matched with the shapes of concave pits which are formed on the side faces of the speed shifting fork shafts; the first-gear and the second-gear speed shifting fork shafts (6) positioned in the middle of the three speed shifting fork shafts are provided with through holes which are coaxial with the interlocking holes (19); and interlocking pins (24) are arranged in the through holes. The transmission has a self-locking and interlocking structure to solve the out-of-gear and erratic-gear problems; and the reasonable configuration of a driving gear reduces the driving noise of the gear and enhances the driving power, so the transmission is used safely and reliably.
Description
Technical field the present invention relates to a kind of transmission assembly, specifically a kind of transmission assembly of engineering vehicle special use.
The following defective of the existing transmission assembly special for engineering vehicle ubiquity of background technique: (1), under stressed huge working environment, variable-speed shaft is out of supply easily, random shelves, has potential safety hazard; (2), gear transmission noises is big, the torsion deficiency.
Summary of the invention technical problem to be solved by this invention is, a kind of transmission assembly special for engineering vehicle is provided, structure by self-locking, interlocking solves problems out of supply, random shelves, reasonable disposition by driving gear reduces the gear transmission noise and increases transfer motion power, to overcome the defective of above-mentioned existing procucts.
In order to solve the problems of the technologies described above, the present invention has adopted following technological scheme.
A kind of transmission assembly special for engineering vehicle, comprise housing and the loam cake that is installed on the housing upper end, it is characterized in that: offer last covering that substantially horizontal is provided with, the axis of axially bored line and gear shift fork shaft be positioned on the same horizontal plane and with the mutually perpendicular interlocking of the axis of gear shift fork shaft hole; In the interlocking hole between adjacent gear shift fork shaft interlocking block is installed, the shape at interlocking block two ends is consistent with the pit shape that is opened in the gear shift fork shaft side; Being positioned on middle first and second grade gear shift fork shaft of three gear shift fork shafts, offer the through hole coaxial, and in this through hole, interlocking plunger is installed with the interlocking hole.
Also offer vertical setting and be positioned at self-locking hole above the gear shift fork shaft last covering, in self-locking hole, be disposed with plug screw, spring and steel ball from top to bottom, and the pit that is consistent with described steel ball arc shape in the setting of gear shift fork shaft upside.
Also be equipped with first and second in housing, first as input shaft, and two reduction gear of a shaftgear of first and second are commonly engaged gear, and they are the helical gear of transmission of intermeshing.
The present invention has following characteristics.
(1), self-locking mechanism and mutual interlocking gear two-part constitute the variable-speed shaft locking mechanism of this transmission assembly, have guaranteed under the stressed huge working environment of engineering vehicle variable-speed shaft not out of supplyly, random shelves have improved working efficiency and have guaranteed the Security of vehicle operation.
(2), two reduction gear of a shaftgear of first and second are the helical gear of transmission of intermeshing, this helical teeth transmission has that operational noise is low, torsion is big, the characteristics of power foot.
Description of drawings Fig. 1 is an overall structure schematic representation of the present invention.
Fig. 2 is the B-B sectional view of Fig. 1.
Fig. 3 is the structural representation of variable-speed shaft locking mechanism of the present invention.
Embodiment further specifies the present invention below in conjunction with drawings and Examples.
As shown in Figure 1, the transmission assembly of present embodiment comprises housing 1 and the loam cake 4 that is installed on housing 1 upper end.Wherein, first and second grade shifting fork 2 is installed in the loam cake 4, third gear shifting fork 5 and reversing shifting fork 8, first and second grade gear shift fork shaft 6, third gear gear shift fork shaft 3 and reversing shifting fork axle 9, correspondence is installed on first and second grade shifting fork 2 respectively, in third gear shifting fork 5 and the reversing shifting fork 8.Match with described shifting fork in speed change lever 7 lower ends.
As Fig. 2, as first 15, the second 14 of input shaft, as the 3rd 13, the four 12, the five 11 of reverse gear shaft be installed in the housing 1 by gear mechanism respectively as the 6th 10 of output shaft.Wherein said shifting fork lower end cooperates with slide teeth roller box on second 14.
Still as Fig. 2, a shaftgear 16 of first 15 and two reduction gear 17 of second 14 are commonly engaged gear, and they are the helical gear of transmission of intermeshing.
As shown in Figure 3, the variable-speed shaft locking mechanism of this transmission assembly comprises self-locking mechanism and mutual interlocking gear two-part.
Wherein, the structure and the working principle of self-locking mechanism are: offering vertical setting on the loam cake 4 and being positioned at self-locking hole 23 above the gear shift fork shaft, be disposed with plug screw 22, spring 21 and steel ball 20 from top to bottom in self-locking hole 23.And the pit that is consistent with described steel ball 20 arc shapes in the setting of gear shift fork shaft upside.
Wherein, the structure and the working principle of mutual interlocking gear are: offer cross setting on loam cake 4, promptly substantially horizontal is provided with, the axis of axially bored line and gear shift fork shaft be positioned on the same horizontal plane and with the mutually perpendicular interlocking of the axis of gear shift fork shaft hole 19.In the interlocking hole 19 between adjacent gear shift fork shaft interlocking block 25 is installed, the shape at interlocking block 25 two ends is consistent with the pit shape that is opened in the gear shift fork shaft side.On first and second grade gear shift fork shaft 6 that is being positioned in the middle of three gear shift fork shafts, offer the through hole coaxial, and interlocking plunger 24 is installed in this through hole with interlocking hole 19.The patch 18 that is used to seal interlocking hole 19 is installed in interlocking hole 19 external port.
Under the neutral state, interlocking block 25 two ends all are arranged in the pit of gear shift fork shaft side, a certain gear shift fork shaft is stirred the back by speed change lever 7 axial displacement is taken place, interlocking block 25 1 ends are forced to shift out described pit, and withstand on the shifting fork axial wall of this displacement, distance between the adjacent gear shift fork shaft is forced to strengthen, and the interlocked that plays between gear shift fork shaft is used.In addition, when interlocking block 25 ends moved in the side pit on first and second grade gear shift fork shaft 6, interlocking block 25 ends to opposite side, and held out against the interlocking block 25 of opposite side by interlocking plunger 24 with interlocking plunger 24 tops, realize the locking of this opposite side gear shift fork shaft.
Claims (3)
1. transmission assembly special for engineering vehicle, comprise housing (1) and be installed on the loam cake (4) of housing (1) upper end, it is characterized in that: offer on loam cake (4) that substantially horizontal is provided with, the axis of axially bored line and gear shift fork shaft be positioned on the same horizontal plane and with the mutually perpendicular interlocking of the axis of gear shift fork shaft hole (19); In the interlocking hole (19) between adjacent gear shift fork shaft interlocking block (25) is installed, the shape at interlocking block (25) two ends is consistent with the pit shape that is opened in the gear shift fork shaft side; Being positioned on middle first and second grade gear shift fork shaft (6) of three gear shift fork shafts, offer and the coaxial through hole in interlocking hole (19), and interlocking plunger (24) is installed in this through hole.
2. transmission assembly special for engineering vehicle as claimed in claim 1, it is characterized in that: on loam cake (4), also offer vertical setting and be positioned at the self-locking hole (23) of gear shift fork shaft top, in self-locking hole (23), be disposed with plug screw (22), spring (21) and steel ball (20) from top to bottom, and the pit be consistent with described steel ball (20) arc shape be set at the gear shift fork shaft upside.
3. transmission assembly special for engineering vehicle as claimed in claim 1 or 2, it is characterized in that: first (15) and second (14) also are installed in housing (1), first (15) are as input shaft, one shaftgear (16) of first (15) and two reduction gear (17) of second (14) are commonly engaged gear, and they are the helical gear of transmission of intermeshing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810237634A CN101737489A (en) | 2008-11-26 | 2008-11-26 | Transmission assembly special for engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810237634A CN101737489A (en) | 2008-11-26 | 2008-11-26 | Transmission assembly special for engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101737489A true CN101737489A (en) | 2010-06-16 |
Family
ID=42461368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810237634A Pending CN101737489A (en) | 2008-11-26 | 2008-11-26 | Transmission assembly special for engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101737489A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886700A (en) * | 2010-07-17 | 2010-11-17 | 中国重汽集团大同齿轮有限公司 | Mechanically interlocking mechanism of main and auxiliary boxes of speed changer |
| CN102296654A (en) * | 2010-06-22 | 2011-12-28 | 天津建筑机械厂 | Mechanical gearbox of bulldozer |
| CN102537339A (en) * | 2012-01-15 | 2012-07-04 | 福田雷沃国际重工股份有限公司 | Self-locking and interlocking mechanism for shifting fork shafts of gearbox |
| CN103867710A (en) * | 2014-03-31 | 2014-06-18 | 长城汽车股份有限公司 | Transmission control mechanism and vehicle with transmission control mechanism |
| CN103867710B (en) * | 2014-03-31 | 2016-11-30 | 长城汽车股份有限公司 | Transmission control and there is the vehicle of this transmission control |
-
2008
- 2008-11-26 CN CN200810237634A patent/CN101737489A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296654A (en) * | 2010-06-22 | 2011-12-28 | 天津建筑机械厂 | Mechanical gearbox of bulldozer |
| CN101886700A (en) * | 2010-07-17 | 2010-11-17 | 中国重汽集团大同齿轮有限公司 | Mechanically interlocking mechanism of main and auxiliary boxes of speed changer |
| CN102537339A (en) * | 2012-01-15 | 2012-07-04 | 福田雷沃国际重工股份有限公司 | Self-locking and interlocking mechanism for shifting fork shafts of gearbox |
| CN103867710A (en) * | 2014-03-31 | 2014-06-18 | 长城汽车股份有限公司 | Transmission control mechanism and vehicle with transmission control mechanism |
| CN103867710B (en) * | 2014-03-31 | 2016-11-30 | 长城汽车股份有限公司 | Transmission control and there is the vehicle of this transmission control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100616 |