CN101886700A - Mechanically interlocking mechanism of main and auxiliary boxes of speed changer - Google Patents
Mechanically interlocking mechanism of main and auxiliary boxes of speed changer Download PDFInfo
- Publication number
- CN101886700A CN101886700A CN201010231088XA CN201010231088A CN101886700A CN 101886700 A CN101886700 A CN 101886700A CN 201010231088X A CN201010231088X A CN 201010231088XA CN 201010231088 A CN201010231088 A CN 201010231088A CN 101886700 A CN101886700 A CN 101886700A
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- fork shaft
- spring
- interlock board
- speed changer
- odd
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Abstract
The invention belongs to the technical field of mechanically driving speed changers for vehicles, and in particular relates to a mechanically interlocking mechanism of main and auxiliary boxes of a speed changer, which solves the problem that the protecting mode of a traditional speed changer rear auxiliary box synchronizer is not durable or is too high in price. The mechanically interlocking mechanism comprises an interlocking plate, a pressure plate, a spring and a spring seat, wherein a locking slot is respectively drilled on the main box fork shaft and the auxiliary box fork shaft of the speed changer, the interlocking plate is sleeved at the part of the locking slot, the pressure plate is pressed on the interlocking plate, the interlocking plate can move relative to the pressure plate, the pressure plate is fixed on a speed changer shell, a convex plate is arranged on the interlocking plate, one end of the spring is installed on the convex plate, the other end of the spring is installed on the spring seat, and the spring is arranged along the moving direction of the interlocking plate. The invention has the advantages that the shifting with loads of an auxiliary box is avoided, the auxiliary box synchronizer is effectively protected, and meanwhile, the invention has the characteristics of low cost and high reliability.
Description
Technical field
The invention belongs to the technical field of automobile with mechanical transmissions, be specifically related to a kind of mechanically interlocking mechanism of main and auxiliary boxes of speed changer, it prevents that back odd-side synchronizer band carries engage a gear, effectively the life-span of protection back odd-side synchronizer.
Background technique
The gear number of automotive transmission increase the power utilization that can improve motor, the fuel economy and the average speed of automobile, and the speed changer of band back odd-side can make traditional Transmission gear double.The odd-side synchronizer is a weak link behind this speed changer; must protect specially to improve its working life; each manufacturer adopts the solenoid valve protected-type more at present, but homemade solenoid valve reliability and durability do not guarantee that the price of import is too high again.
Summary of the invention
The present invention provides a kind of mechanically interlocking mechanism of main and auxiliary boxes of speed changer for the protected-type that solves odd-side synchronizer behind the existing speed changer or can not be durable or problem that price is too high.
The present invention adopts following technological scheme to realize:
Mechanically interlocking mechanism of main and auxiliary boxes of speed changer, comprise interlock board, pressing plate, spring and spring seat, the same side of each main tank fork shaft of speed changer, have the locked groove that identical longitudinal section is a rectangle on the same horizontal line, have on the odd-side fork shaft one identical with main tank fork shaft locked groove opening direction but the longitudinal section is trapezoidal locked groove, have some lockholes that hold each fork shaft entire cross section on the interlock board, lockhole is placed in the position of the groove of unblanking on each main tank fork shaft and the odd-side fork shaft, the position of the corresponding locked groove of lockhole is that straightway forms the locking face, and the length of locking face is more than or equal to the diameter of overlapping fork shaft; The stroke of lockhole on interlock board moving direction, it is odd-side fork shaft groove depth size, locked groove smaller or equal to the main tank fork shaft is dark, press on the interlock board and establish pressing plate, and interlock board can move relative to pressing plate, pressing plate is fixed on the case of transmission, establish projection on the interlock board, an end of mounting spring on the projection, the other end of spring is installed on the spring seat, and spring is provided with along interlock board moving direction.
When the odd-side synchronizer was on neutral gear, under the effect of spring, interlock board was stuck in the groove of major and minor case fork shaft, and the main tank fork shaft can not move, and main tank can not engage a gear; Be dovetail groove on the odd-side fork shaft, so the odd-side fork shaft can move, the interlock board that is stuck on the odd-side fork shaft dovetail groove can move under the drive of dovetail groove in the opposite direction, gradually deviate from main tank fork shaft locked groove, have only when the odd-side synchronizer switches to top grade or low grade (interlock board is deviate from dovetail groove fully) fully, interlock board is just deviate from main tank fork shaft locked groove fully, this moment the main tank fork shaft can be in lockhole free shuttling, main tank can engage a gear.
The relative prior art of the present invention has following beneficial effect: by described mechanical interlocked mechanism, avoid the odd-side band to carry engage a gear, the odd-side synchronizer is played effective protection, have low cost simultaneously, the characteristics of high reliability.
Description of drawings
Fig. 1 is the planimetric map of odd-side mutual interlocking gear when neutral gear
Fig. 2 is the elevation of mutual interlocking gear at neutral gear for odd-side
The planimetric map of (high-grade or low-grade) mutual interlocking gear when Fig. 3 has grade for odd-side
Fig. 4 is the cross section structure schematic representation of pressing plate and interlock board
Fig. 5 is the planimetric map of odd-side mutual interlocking gear when having grade
Among the figure: 1-pressing plate, 2-interlock board, 3-main tank fork shaft, 4-odd-side fork shaft, 5-spring, 6-spring seat, 7-bolt.
Embodiment
In conjunction with the accompanying drawings the specific embodiment of the present invention is described further.
Mechanically interlocking mechanism of main and auxiliary boxes of speed changer, comprise interlock board 2, pressing plate 1, spring 5 and spring seat 6, the same side of each main tank fork shaft of speed changer, have the locked groove that identical longitudinal section is a rectangle on the same horizontal line, have on the odd-side fork shaft one identical with main tank fork shaft locked groove opening direction but the longitudinal section is trapezoidal locked groove, have some lockholes that hold each fork shaft entire cross section on the interlock board 2, just the size of lockhole must be greater than the diameter of each fork shaft, lockhole is placed in the position of the groove of unblanking on each main tank fork shaft 3 and the odd-side fork shaft 4, the position of the corresponding locked groove of lockhole is that straightway forms the locking face, the length of locking face is more than or equal to the diameter of overlapping fork shaft, the intermediate shape up and down that is lockhole locking face must not be interfered with main tank fork shaft locked groove, and is convenient to processing; The stroke of lockhole on interlock board moving direction, it is odd-side fork shaft groove depth size, locked groove smaller or equal to the main tank fork shaft is dark, press on the interlock board 2 and establish pressing plate 1, and interlock board 2 can move relative to pressing plate 1, three of pressing plate 1 usefulness are bolted to case of transmission and lean on the wall of odd-side one side, establish projection on the interlock board 2, an end of mounting spring 5 on the projection, the other end of spring 5 is installed on the spring seat 6, and spring 5 is provided with along interlock board moving direction.
When the odd-side synchronizer is on neutral gear (as Fig. 1,2), under the effect of spring, interlock board 2 is stuck in the fork shaft groove of major-minor case, and main tank fork shaft 3 can not move, and main tank can not engage a gear; Have only when the odd-side synchronizer switches to top grade or low grade fully; interlock board 2 is just deviate from the fork shaft groove fully; main tank fork shaft 3 places the lockhole of interlock board 2 can move freely; this moment, main tank can engage a gear (shown in Fig. 3,5); by this mechanical interlocked mechanism; avoid the odd-side band to carry engage a gear, the odd-side synchronizer is played effective protection.
Groove on the fork shaft can be opened in the left side of interlock board moving direction or right side (left and right be as the criterion) about on the accompanying drawing, decide on a left side or on the right side according to spring seat, the fork shaft groove is driveed when the right side, as shown in drawings, the position of the fork shaft of the corresponding main tank leftmost side, the interlock board leftmost side is open keyhole not, and the interlock board side can insert interior the getting final product of fork shaft groove of the leftmost side.The fork shaft groove is driveed when the right side, and the position of the fork shaft of the corresponding main tank rightmost side, the interlock board rightmost side is open keyhole not, and the interlock board side can insert interior the getting final product of fork shaft groove of the rightmost side.
Claims (1)
1. mechanically interlocking mechanism of main and auxiliary boxes of speed changer, it is characterized in that it comprises interlock board (2), pressing plate (1), spring (5) and spring seat (6), the same side of each main tank fork shaft of speed changer, have the locked groove that identical longitudinal section is a rectangle on the same horizontal line, have on the odd-side fork shaft one identical with main tank fork shaft locked groove opening direction but the longitudinal section is trapezoidal locked groove, have some lockholes that hold each fork shaft entire cross section on the interlock board (2), lockhole is placed in the position of the groove of unblanking on each main tank fork shaft (3) and the odd-side fork shaft (4), the position of the corresponding locked groove of lockhole is that straightway forms the locking face, and the length of locking face is more than or equal to the diameter of overlapping fork shaft; The stroke of lockhole on interlock board moving direction, it is odd-side fork shaft groove depth size, locked groove smaller or equal to the main tank fork shaft is dark, interlock board (2) go up to be pressed and to be established pressing plate (1), and interlock board (2) can move relative to pressing plate (1), and pressing plate (1) is fixed on the case of transmission, interlock board is established projection on (2), one end of mounting spring on the projection (5), the other end of spring (5) are installed on the spring seat (6), and spring (5) is provided with along interlock board moving direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231088XA CN101886700A (en) | 2010-07-17 | 2010-07-17 | Mechanically interlocking mechanism of main and auxiliary boxes of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010231088XA CN101886700A (en) | 2010-07-17 | 2010-07-17 | Mechanically interlocking mechanism of main and auxiliary boxes of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101886700A true CN101886700A (en) | 2010-11-17 |
Family
ID=43072732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010231088XA Pending CN101886700A (en) | 2010-07-17 | 2010-07-17 | Mechanically interlocking mechanism of main and auxiliary boxes of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886700A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906002A (en) * | 2019-12-30 | 2020-03-24 | 綦江齿轮传动有限公司 | Transmission interlocking mechanism |
| CN111692327A (en) * | 2020-06-30 | 2020-09-22 | 中国重汽集团大同齿轮有限公司 | Gear selecting and shifting mechanism of light commercial vehicle transmission |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1719520A (en) * | 1927-08-18 | 1929-07-02 | Brown Lipe Gear Co | Transmission-gear lock |
| WO1987003714A1 (en) * | 1985-12-06 | 1987-06-18 | Zahnradfabrik Friedrichshafen Ag | Locking device for gearshift rods |
| DE19949742A1 (en) * | 1999-10-15 | 2001-04-19 | Zahnradfabrik Friedrichshafen | Gear box for utility vehicles has blocking device with spring arrangement between main and auxiliary transmissions |
| CN201306441Y (en) * | 2008-12-17 | 2009-09-09 | 李殿荣 | Shift rail interlocking device of cross shaft gearbox |
| CN101660606A (en) * | 2009-09-21 | 2010-03-03 | 重庆大学 | Combined locking mechanism for shifting between master and slave boxes in mechanical transmission |
| CN101737489A (en) * | 2008-11-26 | 2010-06-16 | 陆柄霖 | Transmission assembly special for engineering vehicle |
| CN201714961U (en) * | 2010-07-17 | 2011-01-19 | 中国重汽集团大同齿轮有限公司 | Mechanical interlocking mechanism of main and auxiliary cases of transmission |
-
2010
- 2010-07-17 CN CN201010231088XA patent/CN101886700A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1719520A (en) * | 1927-08-18 | 1929-07-02 | Brown Lipe Gear Co | Transmission-gear lock |
| WO1987003714A1 (en) * | 1985-12-06 | 1987-06-18 | Zahnradfabrik Friedrichshafen Ag | Locking device for gearshift rods |
| DE19949742A1 (en) * | 1999-10-15 | 2001-04-19 | Zahnradfabrik Friedrichshafen | Gear box for utility vehicles has blocking device with spring arrangement between main and auxiliary transmissions |
| CN101737489A (en) * | 2008-11-26 | 2010-06-16 | 陆柄霖 | Transmission assembly special for engineering vehicle |
| CN201306441Y (en) * | 2008-12-17 | 2009-09-09 | 李殿荣 | Shift rail interlocking device of cross shaft gearbox |
| CN101660606A (en) * | 2009-09-21 | 2010-03-03 | 重庆大学 | Combined locking mechanism for shifting between master and slave boxes in mechanical transmission |
| CN201714961U (en) * | 2010-07-17 | 2011-01-19 | 中国重汽集团大同齿轮有限公司 | Mechanical interlocking mechanism of main and auxiliary cases of transmission |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906002A (en) * | 2019-12-30 | 2020-03-24 | 綦江齿轮传动有限公司 | Transmission interlocking mechanism |
| CN111692327A (en) * | 2020-06-30 | 2020-09-22 | 中国重汽集团大同齿轮有限公司 | Gear selecting and shifting mechanism of light commercial vehicle transmission |
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| PB01 | Publication | ||
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Application publication date: 20101117 |