CN201610924U - Six-gear medium and heavy duty automobile speed changer - Google Patents
Six-gear medium and heavy duty automobile speed changer Download PDFInfo
- Publication number
- CN201610924U CN201610924U CN2009202550443U CN200920255044U CN201610924U CN 201610924 U CN201610924 U CN 201610924U CN 2009202550443 U CN2009202550443 U CN 2009202550443U CN 200920255044 U CN200920255044 U CN 200920255044U CN 201610924 U CN201610924 U CN 201610924U
- Authority
- CN
- China
- Prior art keywords
- gear
- retainings
- speed changer
- fixed
- medium
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an automobile speed changer, in particular to a six-gear medium and heavy duty automobile speed changer, which solves the problem that the structure of the existing medium and heavy duty automobile speed changer is not reasonable. The first gear and the second gear of forward gears and a reverse gear are shifted through a sliding sleeve; the third gear of the forward gears is provided with a double-cone synchronizer; the fourth gear and the fifth gear of the forward gears are provided with single-cone synchronizers; a forward gear main shaft gear is fixed on a main shaft; a forward gear counter shaft gear meshed with the forward gear main shaft gear is fixed on a counter shaft; an input shaft gear is fixed on an input shaft; and a counter shaft driving gear meshed with the input shaft gear is fixed on the counter shaft. By adjusting the gear speed ratio of the existing automobile speed changer, the climbing capacity is strong during low gear shifting, and the double-cone synchronizer ensures that the gear shifting is more convenient and more flexible; and the three-shaft type structure ensures that the matching range of the whole automobile is wider and the adaptability is better, and the service life and the reliability of the speed changer are greatly improved.
Description
Technical field
The utility model relates to automotive transmission, is specially the medium and heavy automotive transmission of a kind of six retainings.
Background technique
At present, domestic medium and heavy automotive transmission mostly is six shift transmissions greatly, the slowest ratio of speed changer is less than 9, its structure mainly comprises main shaft and the countershaft of installing side by side in the housing, each shift gear is enclosed within on the main shaft and the double-cone synchronizer gearshift is housed, and is fixed with driving gear corresponding with each shift gear on the main shaft and engagement on the countershaft.Owing to the heavy-duty car manufacturing technology is that development along with high power engine develops, it to speed changer proposed that meshing performance is good, large speed ratio and the requirement on little speed ratio rank, obviously present heavy-duty automotive speed changer has not satisfied the growth requirement of high-power heavy-duty car.
Summary of the invention
The utility model provides a kind of six retainings medium and heavy automotive transmission in order to solve the problem of existing heavy-duty automotive speed changer unreasonable structure.
The utility model is to adopt following technological scheme to realize: the medium and heavy automotive transmission of six retainings, comprise casing, input shaft, main shaft, countershaft, clutch and forward gear and reverse gear, one retaining of forward gear, two retainings and reverse gear and be the gearshift of engagement cover, three retainings of forward gear are provided with double taper synchronizer, four retainings of forward gear and five retainings are provided with single awl synchronizer, be fixed with the forward gear mainshaft gear on the main shaft, be fixed with forward gear counter shaft gear on the countershaft with the engagement of forward gear mainshaft gear, be fixed with input shaft gear on the input shaft, be fixed with countershaft driver gear on the countershaft with the input shaft gear engagement.During work, power is imported from input shaft, input shaft drives input shaft gear and rotates with the countershaft driver gear of its engagement, then by the fork controls double-cone synchronizer and then to the speed governing of shifting gears of forward gear and backstop gear, overcome the variety of problems that existing medium and heavy automotive transmission unreasonable structure causes, it is strong to have in low shift transmission grade ability, the advantage that adaptability is good.
Double-cone synchronizer is made of outer shroud, central ring, interior ring from outside to inside, and the fitting surface of central ring and outer shroud, interior ring is all the conical surface, along the circumferential direction is evenly equipped with dog on the central ring.Have compact structure in the working procedure, capacity is big, use can make that the speed changer overall structure diminishes, weight saving.
The upper and lower surface of clutch is equipped with peephole, and the cover plate in the peephole outside is the louvre type cover plate, when central heavy-duty automotive speed changer is in running order, is easy to observe the separation structure of internal clutch, and good heat dispersion performance.
Reverse gear is a spur gear, the forward gear gear is a helical gear, and when the medium and heavy automotive transmission of six retainings added an amount of oil, forward gear and the gear that reverses gear rotate to make realized splash lubrication in it, reduce the working oil temperature of speed changer effectively, improved the working life and the reliability of speed changer greatly.
The utility model is by adjusting the retaining speed ratio of existing automotive transmission, and grade ability is stronger during the low gear speed change, has adopted double taper synchronizer, makes that gearshift is lighter, flexible; Adopt the triple axle structure, make that the matching range of car load is wider, better adaptability, improved the working life and the reliability of speed changer greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of double-cone synchronizer in the utility model.
Among the figure: 1-input shaft, 2-main shaft, 3-countershaft, the 4-outer shroud, ring in the 5-central ring, 6-, the 7-dog, 8-cover plate, 9-clutch, 10-tooth cover, 11-toothholder, 12-shift fork, 13-main shaft back seat bearing, 14-gear conical ring, 15-input shaft gear, the 16-countershaft driver gear, 17-forward gear counter shaft gear, 18-forward gear mainshaft gear.
Embodiment
The medium and heavy automotive transmission of six retainings, comprise casing, input shaft 1, main shaft 2, countershaft 3, clutch 9 and forward gear and reverse gear, one retaining, two of forward gear keeps off and reverses gear is the gearshift of engagement cover, three retainings of forward gear are provided with double taper synchronizer, four retainings of forward gear and five retainings are provided with single awl synchronizer, be fixed with forward gear mainshaft gear 18 on the main shaft 2, be fixed with forward gear counter shaft gear 17 on the countershaft 3 with 18 engagements of forward gear mainshaft gear, be fixed with input shaft gear 15 on the input shaft 1, be fixed with countershaft driver gear 16 on the countershaft 3 with input shaft gear 15 engagements.Double-cone synchronizer is made of outer shroud 4, central ring 5, interior ring 6 from outside to inside, and central ring 5 is all the conical surface with the fitting surface of outer shroud 4, interior ring 6, along the circumferential direction is evenly equipped with dog 7 on the central ring 5; The upper and lower surface of clutch 9 is equipped with peephole, and the cover plate 8 in the peephole outside is the louvre type cover plate; Reverse gear is a spur gear, and the forward gear gear is a helical gear.In the specific implementation process, the groove fit on dog 7 and the gear conical ring 14.Double-cone synchronizer is installed on the toothholder 11, and toothholder 11 is installed on the main shaft 2 by spline, and tooth cover 10 is set on the toothholder 11.When putting into gear, shift fork 12 drives tooth cover 10 left sides or moves right, and tooth cover 10 promotes a double-cone synchronizer left side or moves right, and in the groove that the dog 7 on the central ring 5 inserts on the gear conical ring 14, by the frictional force transferring power, makes the gear that is engaged consistent with engagement cover linear velocity.
Claims (5)
1. one kind six is kept off medium and heavy automotive transmission, comprise casing, input shaft (1), main shaft (2), countershaft (3), clutch (9) and forward gear and reverse gear, it is characterized in that: a retaining of forward gear, two retainings and reverse gear and be the gearshift of engagement cover, three retainings of forward gear are provided with double taper synchronizer, four retainings of forward gear and five retainings are provided with single awl synchronizer, be fixed with forward gear mainshaft gear (18) on the main shaft (2), be fixed with forward gear counter shaft gear (17) on the countershaft (3) with forward gear mainshaft gear (18) engagement, be fixed with input shaft gear (15) on the input shaft (1), be fixed with countershaft driver gear (16) on the countershaft (3) with input shaft gear (15) engagement.
2. the medium and heavy automotive transmission of six retainings according to claim 1, it is characterized in that: double-cone synchronizer is made of outer shroud (4), central ring (5), interior ring (6) from outside to inside, central ring (5) is all the conical surface with the fitting surface of outer shroud (4), interior ring (6), along the circumferential direction is evenly equipped with dog (7) on the central ring (5).
3. the medium and heavy automotive transmission of six retainings according to claim 1 and 2, it is characterized in that: the upper and lower surface of clutch (9) is equipped with peephole, and the cover plate (8) in the peephole outside is the louvre type cover plate.
4. the medium and heavy automotive transmission of six retainings according to claim 1 and 2, it is characterized in that: reverse gear is a spur gear, the forward gear gear is a helical gear.
5. the medium and heavy automotive transmission of six retainings according to claim 3, it is characterized in that: reverse gear is a spur gear, the forward gear gear is a helical gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202550443U CN201610924U (en) | 2009-12-15 | 2009-12-15 | Six-gear medium and heavy duty automobile speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202550443U CN201610924U (en) | 2009-12-15 | 2009-12-15 | Six-gear medium and heavy duty automobile speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610924U true CN201610924U (en) | 2010-10-20 |
Family
ID=42961558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202550443U Expired - Fee Related CN201610924U (en) | 2009-12-15 | 2009-12-15 | Six-gear medium and heavy duty automobile speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610924U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438873A (en) * | 2016-09-08 | 2017-02-22 | 陕西法士特齿轮有限责任公司 | Transmission for hybrid power system |
-
2009
- 2009-12-15 CN CN2009202550443U patent/CN201610924U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438873A (en) * | 2016-09-08 | 2017-02-22 | 陕西法士特齿轮有限责任公司 | Transmission for hybrid power system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |