CN105134879A - Main speed reducer of FSC (Formula Student China) racing car - Google Patents
Main speed reducer of FSC (Formula Student China) racing car Download PDFInfo
- Publication number
- CN105134879A CN105134879A CN201510492260.XA CN201510492260A CN105134879A CN 105134879 A CN105134879 A CN 105134879A CN 201510492260 A CN201510492260 A CN 201510492260A CN 105134879 A CN105134879 A CN 105134879A
- Authority
- CN
- China
- Prior art keywords
- gear
- output shaft
- bearing
- racing car
- gearwheel
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
- F16H1/08—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes the members having helical, herringbone, or like teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention provides a main speed reducer of an FSC (Formula Student China) racing car. The main speed reducer comprises a tank, an input gear shaft, an output shaft, a large gear and an output chain wheel, wherein the input gear shaft, the output shaft, the large gear and the output chain wheel are arranged in an inner cavity of the tank; the shaft end of the input gear shaft is connected to the tank through a first bearing, and the gear end of the input gear shaft is meshed with the large gear; the large gear is connected to the middle part of the output shaft; the two ends of the output shaft are connected to the tank respectively through a second bearing and a third bearing; the output chain wheel is connected to the end of the extension end of the output shaft; a center connecting hole is formed in the gear end of the input gear shaft; a key groove is formed in the inner wall of the center connecting hole; and a motor output shaft is connected to the input gear shaft by keys. The main speed reducer is small in size and light in weight.
Description
Technical field
The invention belongs to the technical field of FSC racing car, particularly relate to a kind of main reducing gear of FSC racing car.
Background technique
The contest of Chinese college students electronic equation motorcycle race FSC (FormulaStudentChina) is the Automobile Design and Manufacturing contest carried out in recent years.Electronic equation motorcycle race adopts motor as power, because range of motor speeds is high, in order to reduce output speed, and obtain larger torque, so electronic equation motorcycle race generally needs to be equipped with main reducing gear, thus size of reasonable distribution racing car output speed and driving force.
The main reducing gear be applied at present above electronic equation motorcycle race have employed single-stage chain type main reducing gear and straight toothed spur gear main reducing gear mostly.Can not keep constant instantaneous transmission ratio during the running of single-stage chain type main reducing gear, easily occur after wearing and tearing to jump tooth, operational noise is large, is not suitable at a high speed and uses in occasion that load variations is very large.Chain conveyer is due to the wearing and tearing of chain simultaneously, and centre distance regulates also more miscellaneous.In straight toothed spur gear main reducing gear transmission process, the engagement of the gear teeth is actual is interval, and because of foozle, the engaging-in suddenly of the gear teeth is nibbled out, and driving mechanism will be caused to form moment impact, the shortcomings such as impact shock noise is obvious.Above-mentioned two kinds of main reducing gear forms affect electronic equation motorcycle race at a high speed, and the performance under large load and limited conditions, and poor stability, affect overall achievement.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned Problems existing, provides a kind of main reducing gear of FSC racing car, have employed cylindrical helical gear drive, reduce main reducing gear volume and weight.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of main reducing gear of FSC racing car, it is characterized in that, comprise casing and install the input gear axle in cabinets cavity, output shaft, gearwheel and output sprocket, the axle head of described input gear axle is connected with casing by clutch shaft bearing, the gear end of input gear axle is meshed with described gearwheel, gearwheel is connected with the middle part of described output shaft, the two ends of output shaft are connected with casing with the 3rd bearing respectively by the second bearing, described output sprocket is connected with the termination of the external part of output shaft, the gear end of input gear axle has center attachment hole, described center attachment hole inwall is provided with keyway.
By such scheme, gear end and the gearwheel of described input gear axle are helical gear.
By such scheme, described casing is provided with the first groove and the second groove, is provided with clutch shaft bearing end cap in described first groove, is provided with the second bearing (ball) cover in described second groove, described clutch shaft bearing end cap is connected by Cock screw with casing with the second bearing (ball) cover, and is sealed by gasket seal.
By such scheme, described gearwheel is connected by flat key with described output shaft, and the shaft shoulder of gearwheel one end and output shaft offsets, and the other end of gearwheel is offseted by the inwall of sleeve and described casing.
By such scheme, the surface of contact of described second bearing (ball) cover and described output shaft is provided with seal ring.
By such scheme, described casing to be connected by connecting bolt by upper box and lower box and to form, and described upper box and lower box are equipped with connection hanger.
By such scheme, described output shaft is connected by square key with output sprocket.
The invention has the beneficial effects as follows: the main reducing gear that 1, a kind of FSC racing car is provided, have employed cylindrical helical gear drive, in transmission process, engaging-in the nibbling out of often pair of gear is gradually, avoids the engaging-in suddenly of impact and nibbles out, stable drive, impact shock noise is little, meet heavy duty, complicated, the requirement of racing car runnability under limited conditions; 2, compared with straight toothed spur gear, the axially loaded of helical gear is little, and helical gear gear teeth helix angle in turn enhances its normal direction stress-bearing capability simultaneously, so its gear-tooth strength is high, is applicable to high-impact occasion; 3, owing to adopting helical gear, reduce main reducing gear volume and weight, to the layout of car load back axle and lightweight significant.
Accompanying drawing explanation
Fig. 1 is the sectional view of one embodiment of the invention.
Fig. 2 is the axonometric drawing of one embodiment of the invention.
Wherein: 1. upper box, 2. lower box, 3. input gear axle, 4. output shaft, 5. gearwheel, 6. output sprocket, 7. clutch shaft bearing, 8. the second bearing, 9. the 3rd bearing, 10. center attachment hole, 11. keyways, 12. first grooves, 13. second grooves, 14. clutch shaft bearing end caps, 15. second bearing (ball) covers, 16. gasket seals, 17. flat keys, 18. sleeves, 19. seal rings, 20. connect hanger.
Embodiment
For understanding the present invention better, below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1-2, a kind of main reducing gear of FSC racing car, comprise casing and install the input gear axle 3 in cabinets cavity, output shaft 4, gearwheel 5 and output sprocket 6, casing to be connected by connecting bolt by upper box 1 and lower box 2 and to form, upper box is connected hanger 20 with lower box is equipped with, casing is connected by hanger screw and motor, the axle head of input gear axle is connected to form cantilever configuration by clutch shaft bearing 7 and casing, its gear end is meshed with gearwheel, gear end and the gearwheel of input gear axle are helical gear, stable drive, impact shock noise is little, meet heavy duty, complicated, the requirement of racing car runnability under limited conditions, gearwheel is connected by flat key 17 with the middle part of output shaft, the shaft shoulder of gearwheel one end and output shaft offsets, the other end is offseted by the inwall of sleeve 18 with casing, to realize axially locating, the two ends of output shaft to be connected to form with casing respectively by the second bearing 8 and the 3rd bearing 9 and to be arranged symmetrically with, the termination of the external part of output shaft is connected by square key with output sprocket, the gear end of input gear axle has center attachment hole 10, center attachment hole inwall is provided with keyway 11, the output shaft of motor is stretched into casing with center attachment hole phase configuration and is connected by key, motor output shaft and casing surface of contact arrange seal ring seal.
Casing is provided with the first groove 12 and the second groove 13, clutch shaft bearing end cap 14 is provided with in first groove, the second bearing (ball) cover 15 is provided with in second groove, clutch shaft bearing end cap is connected by Cock screw with casing with the second bearing (ball) cover, and sealed by gasket seal 16, and clearance-adjustable, the second bearing (ball) cover directly contacts with the external diameter of the second bearing, to carry out axially locating to the second bearing, the surface of contact of the second bearing (ball) cover and output shaft is provided with seal ring 19 and seals.
Power is passed to input gear axle by the motor output shaft of racing car, input gear axle is again by engaging with gearwheel, by transmission of power to gearwheel, gearwheel by transmission of power to output shaft, output power to the output sprocket of casing outside again through output shaft, main reducing gear of the present invention can reasonable distribution output speed and moment of torsion.Stable drive, structure is simple, is easy to realize, and reduces main reducing gear volume and weight, to the layout of car load back axle and lightweight significant.
Claims (7)
1. the main reducing gear of a FSC racing car, it is characterized in that, comprise casing and install the input gear axle in cabinets cavity, output shaft, gearwheel and output sprocket, the axle head of described input gear axle is connected with casing by clutch shaft bearing, the gear end of input gear axle is meshed with described gearwheel, gearwheel is connected with the middle part of described output shaft, the two ends of output shaft are connected with casing with the 3rd bearing respectively by the second bearing, described output sprocket is connected with the termination of the external part of output shaft, the gear end of input gear axle has center attachment hole, described center attachment hole inwall is provided with keyway.
2. the main reducing gear of a kind of FSC racing car according to the claims 1, is characterized in that, gear end and the gearwheel of described input gear axle are helical gear.
3. the main reducing gear of a kind of FSC racing car according to claim 2, it is characterized in that, described casing is provided with the first groove and the second groove, clutch shaft bearing end cap is provided with in described first groove, the second bearing (ball) cover is provided with in described second groove, described clutch shaft bearing end cap is connected by Cock screw with casing with the second bearing (ball) cover, and is sealed by gasket seal.
4. the main reducing gear of a kind of FSC racing car according to claim 1, it is characterized in that, described gearwheel is connected by flat key with described output shaft, and the shaft shoulder of gearwheel one end and output shaft offsets, and the other end of gearwheel is offseted by the inwall of sleeve and described casing.
5. the main reducing gear of a kind of FSC racing car according to claim 3, is characterized in that, the surface of contact of described second bearing (ball) cover and described output shaft is provided with seal ring.
6. the main reducing gear of a kind of FSC racing car according to claim 1 or 3, is characterized in that, described casing to be connected by connecting bolt by upper box and lower box and to form, and described upper box and lower box are equipped with connection hanger.
7. the main reducing gear of a kind of FSC racing car according to claim 1, it is characterized in that, described output shaft is connected by square key with output sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510492260.XA CN105134879A (en) | 2015-08-12 | 2015-08-12 | Main speed reducer of FSC (Formula Student China) racing car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510492260.XA CN105134879A (en) | 2015-08-12 | 2015-08-12 | Main speed reducer of FSC (Formula Student China) racing car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105134879A true CN105134879A (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510492260.XA Pending CN105134879A (en) | 2015-08-12 | 2015-08-12 | Main speed reducer of FSC (Formula Student China) racing car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105134879A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010031683A1 (en) * | 2000-04-08 | 2001-10-18 | Renk Aktiengesellschaft | Generator drive |
| CN203051626U (en) * | 2013-01-21 | 2013-07-10 | 浙江工贸职业技术学院 | Single-stage speed reducing device |
| CN203570933U (en) * | 2013-10-10 | 2014-04-30 | 湖北星菱特种齿轮箱有限公司 | Electric automobile speed reducing device |
| CN203892537U (en) * | 2014-06-24 | 2014-10-22 | 纳恩博（天津）科技有限公司 | Single-stage speed reducer applied to scooter |
| CN204114076U (en) * | 2014-09-15 | 2015-01-21 | 厦工机械（焦作）有限公司 | A kind of Novel wheel-side retarder |
-
2015
- 2015-08-12 CN CN201510492260.XA patent/CN105134879A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010031683A1 (en) * | 2000-04-08 | 2001-10-18 | Renk Aktiengesellschaft | Generator drive |
| CN203051626U (en) * | 2013-01-21 | 2013-07-10 | 浙江工贸职业技术学院 | Single-stage speed reducing device |
| CN203570933U (en) * | 2013-10-10 | 2014-04-30 | 湖北星菱特种齿轮箱有限公司 | Electric automobile speed reducing device |
| CN203892537U (en) * | 2014-06-24 | 2014-10-22 | 纳恩博（天津）科技有限公司 | Single-stage speed reducer applied to scooter |
| CN204114076U (en) * | 2014-09-15 | 2015-01-21 | 厦工机械（焦作）有限公司 | A kind of Novel wheel-side retarder |
Non-Patent Citations (1)
| Title |
|---|
| A.K.托马斯著，武汉钢铁设计院译: "《齿轮承载能力》", 30 November 1973, 冶金工业出版社 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |