CN203404316U - Top fan gearbox - Google Patents
Top fan gearbox Download PDFInfo
- Publication number
- CN203404316U CN203404316U CN201320508889.5U CN201320508889U CN203404316U CN 203404316 U CN203404316 U CN 203404316U CN 201320508889 U CN201320508889 U CN 201320508889U CN 203404316 U CN203404316 U CN 203404316U
- Authority
- CN
- China
- Prior art keywords
- gear
- steel ball
- tooth case
- gearbox
- fan
- 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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- Gear Transmission (AREA)
- Gears, Cams (AREA)
Abstract
The utility model provides a top fan gearbox which is composed of a gearbox shell, a gearbox end cover, a transverse shaft worm, a double-bevel-gear shaft, double bevel gears, a bevel gear cover, a long bevel gear, a shaft sleeve, a steel ball (9), a spring and a stop block. Two holes are formed inside the shaft sleeve to be used for containing the steel ball (9), the spring and the stop block to form a clutch protection device, the steel ball (9) can not fall off, the clutch safety and transmission effects are guaranteed, and the phenomenon that the steel ball (9) falls off to lose the effect is avoided. Due to the fact that the gearbox shell, the gearbox end cover, the transverse shaft worm, the double bevel gears and the long bevel gear are made of plastic in an injection molding mode, processes are reduced, the difficulty is reduced, the accuracy is guaranteed, the defect of uneven fan oscillating is overcome, and the fan quality is greatly improved. The top fan gearbox has the advantages of being high in radiating speed, light and handy in structure, low in running noise and good in gear lubricating performance.
Description
Technical field
The utility model belongs to a kind of gear-box, relates in particular to a kind of cabin fan tooth case.
Background technique
When being fan rotation, cabin fan tooth case makes speed change by electric machine main shaft transmission; drive fan to do 360 degree rotation balanced ventilations; when rotation air-supply runs into outer barrie, can make top rotating lind rod temporarily stop operating, motor is played a protective role and the parts of unlikely damage.
At present, the constructional device of cabin fan tooth case, is, after being slowed down by wheel tooth case, by the engaging and disengaging gear on long helical gear and axle sleeve, to do transmission and protection.But owing to being drilled with in ， hole, two holes, put spring on long helical gear, at both ends of the spring, put respectively again a steel ball, then with instrument, axis hole riveting is little, make the steel ball can be movable under the pressure of spring, can not drop out again; Yet this structure makes the steel ball shielding, easily eject so that cause transmission unstable.In addition the tooth case shell of cabin fan tooth case and tooth case end cap are aluminum alloy manufacture, and manufacturing procedure is many, difficulty is large, and batch process precision is difficult to guarantee.The parts such as the driving gear transverse axis worm screw in tooth case, diclinic gear, long helical gear also need repeatedly to process and just can complete, and higher to the requirement on machining accuracy of part, easily occur the overproof irregular phenomenon of shaking the head that causes.
Summary of the invention
The purpose of this utility model is to provide a kind of clutch protective device structure of improving on long helical gear and axle sleeve, prevents that steel ball from coming off; Tooth case shell, tooth case end cap, transverse axis worm screw, diclinic gear, long helical gear are adopted to Shooting Technique simultaneously, thereby reduce operation, fall end difficulty, guarantee the cabin fan tooth case of precision.Have advantages of that rapid heat dissipation, structure are light and handy, operation noise is low, gear lubrication is good.
A kind of cabin fan tooth case provided by the utility model is comprised of tooth case shell, tooth case end cap, transverse axis snail stalk, double-helical-tooth wheel shaft, double-helical-tooth synthetic fibre, helical teeth wheel cap, long helical teeth synthetic fibre, axle sleeve, steel ball, spring, link stopper.Wherein in said tooth case shell, transverse axis worm screw, double-helical-tooth wheel shaft and diclinic gear are installed, said transverse axis worm screw one end is fixed on tooth case shell by helical teeth wheel cap, the other end supporting point is on the bearing of tooth case shell, with the diclinic gear engagement being fixed on double-helical-tooth wheel shaft; The helical gear bottom of said length is fixed on tooth case end cap, top is connected with axle sleeve; Said axle sleeve is built-in with 2 holes, places steel ball, spring and link stopper and forms clutch protective device.Said tooth case shell, tooth case end cap, transverse axis worm screw, diclinic gear, long helical gear adopt plastic injection-moulded forming.
After cabin fan electrical power, rotate, drive transverse axis worm drive, the double-helical-tooth wheel that is engaged with and is fixed on double-helical-tooth wheel shaft is rotated, also the long helical gear that makes to be fixed on tooth case end cap rotates, make to be arranged on simultaneously axle sleeve on long helical gear top also Zuo Xuan Zhuan And drive whole fan head to do 360 ° waving, to reach cooling-down effect.In axle sleeve, be provided with by steel ball, spring, the clutch protective device that link stopper forms, cannot come off steel ball, has guaranteed original clutch insurance and gearing, has solved again original assembly steel ball and has easily come off and ineffective phenomenon.While making fan run into abnormal obstacle when waving, can guarantee that fan electromotor is not damaged.Because tooth case shell, tooth case end cap, transverse axis worm screw, diclinic gear, long helical gear adopt plastic injection-moulded forming, thereby reduce operation, fall end difficulty, guarantee precision, overcome the irregular defect of shaking the head, greatly improve fan quality.Have advantages of that rapid heat dissipation, structure are light and handy, operation noise is low, gear lubrication is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
In figure, 1 tooth case shell, 2 tooth case end caps, 3 transverse axis snail stalks, 4 double-helical-tooth wheel shafts, 5 diclinic gears, 6 helical teeth wheel caps, 7 long helical gears, 8 axle sleeves, 9 steel balls, 10 springs, 11 link stoppers.
Fig. 2 is the utility model axle sleeve structure schematic diagram
In figure, 8 axle sleeves, 9 steel balls, 10 springs, 11 link stoppers.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated
A kind of cabin fan tooth case provided by the utility model is comprised of tooth case shell 1, tooth case end cap 2, transverse axis snail stalk 3, double-helical-tooth wheel shaft 4, diclinic gear 5, helical teeth wheel cap 6, long helical teeth synthetic fibre 7, axle sleeve 8, steel ball 9, spring 10, link stopper 11.Wherein in said tooth case shell 1, transverse axis worm screw 3, double-helical-tooth wheel shaft 4 and diclinic gear 5 are installed, said transverse axis worm screw 3 one end are fixed on tooth case shell 1 by helical teeth wheel cap 6, the other end and diclinic gear 5 engagements that are fixed on double-helical-tooth wheel shaft 4; The bottom of said long helical gear 7 is fixed on tooth case end cap 2, top is connected with axle sleeve 8; Said axle sleeve 8 is built-in with 2 holes, places the clutch protective device that steel ball 9, spring 10 and link stopper 11 form.Said tooth case shell 1, tooth case end cap, transverse axis worm screw 3, diclinic gear 5, long helical gear 7 adopt plastic injection-moulded forming.
After cabin fan electrical power, rotate, drive 3 transmissions of transverse axis worm screw, the diclinic gear 5 that is engaged with and is fixed on double-helical-tooth wheel shaft 4 is rotated, also the long helical gear 7 that makes to be fixed on tooth case end cap 2 rotates, make to be arranged on simultaneously axle sleeve 8 on long helical gear 7 tops also Zuo Xuan Zhuan And drive whole fan head to do 360 ° waving, to reach cooling-down effect.In axle sleeve 8, be provided with the clutch protective device being formed by steel ball 9, spring 10, link stopper 11; steel ball 9 cannot be come off; original clutch insurance and gearing have been guaranteed; solved again the original assembly steel ball ineffective phenomenon that easily drops out; while making fan run into abnormal obstacle when waving, can guarantee that fan electromotor is not damaged.Because tooth case shell 1 and tooth case end cap 2 are to adopt the injection molded and transverse axis worm screw 3 of engineering plastics (PC), diclinic gear 5, long helical gear 7 employing polyoxymethylene (POM) injection molded, thereby reduce manufacturing procedure, fall end difficulty, guarantee machining accuracy, overcome the irregular defect of shaking the head, greatly improve fan quality.Have advantages of that rapid heat dissipation, structure are light and handy, operation noise is low, gear lubrication is good.
Claims (2)
1. a cabin fan tooth case; comprise tooth case shell (1), tooth case end cap (2), transverse axis worm screw (3), double-helical-tooth wheel shaft (4), diclinic gear (5), helical teeth wheel cap (6), long helical gear (7), axle sleeve (8), steel ball (9), spring (10) and link stopper (11); it is characterized in that said axle sleeve (8) is built-in with 2 holes, place the clutch protective device that steel ball (9), spring (10) and link stopper (11) form.
2. according to the said a kind of cabin fan tooth case of claim 1, it is characterized in that said tooth case shell (1), tooth case end cap (2), transverse axis worm screw (3), diclinic gear (5), long helical gear (7) adopt plastic injection-moulded forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508889.5U CN203404316U (en) | 2013-08-19 | 2013-08-19 | Top fan gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508889.5U CN203404316U (en) | 2013-08-19 | 2013-08-19 | Top fan gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404316U true CN203404316U (en) | 2014-01-22 |
Family
ID=49940253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320508889.5U Expired - Fee Related CN203404316U (en) | 2013-08-19 | 2013-08-19 | Top fan gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503975A (en) * | 2017-10-18 | 2017-12-22 | 何金英 | A kind of electric fan protector |
-
2013
- 2013-08-19 CN CN201320508889.5U patent/CN203404316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503975A (en) * | 2017-10-18 | 2017-12-22 | 何金英 | A kind of electric fan protector |
| CN107503975B (en) * | 2017-10-18 | 2018-06-22 | 江门市裕浩家用电器有限公司 | A kind of electric fan protective device |
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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: 20140122 Termination date: 20140819 |
|
| EXPY | Termination of patent right or utility model |