CN204025539U - A kind of train of reduction gears with auto-lock function and electric actuator thereof - Google Patents
A kind of train of reduction gears with auto-lock function and electric actuator thereof Download PDFInfo
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- CN204025539U CN204025539U CN201420429591.XU CN201420429591U CN204025539U CN 204025539 U CN204025539 U CN 204025539U CN 201420429591 U CN201420429591 U CN 201420429591U CN 204025539 U CN204025539 U CN 204025539U
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- gear
- main shaft
- duplicate gear
- gears
- jack shaft
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Abstract
The utility model discloses a kind of train of reduction gears with auto-lock function, comprise main shaft, jack shaft, be fixedly arranged on the output gear on main shaft, be fixedly arranged on the Self locking gears on jack shaft, be sheathed on the main shaft duplicate gear of also energy relative main rotation on main shaft, be sheathed on the jack shaft duplicate gear that jack shaft also can rotate relative to jack shaft; Main shaft duplicate gear and jack shaft duplicate gear all comprise the different size of the number of teeth two gears, and the number of teeth of gearwheel is more than the number of teeth of small gear; Self locking gears, main shaft duplicate gear, jack shaft duplicate gear, output gear engage successively, Self locking gears engages with the gearwheel of main shaft duplicate gear, the small gear of main shaft duplicate gear engages with the gearwheel of jack shaft duplicate gear, and the small gear of jack shaft duplicate gear engages with output gear; The velocity ratio of Self locking gears and output gear is not less than 20.The utility model structure is ingenious, can realize slowing down and parking brake simultaneously, and manufacture simple, cost is low, effective.
Description
Technical field
The utility model relates to gear transmission field, particularly relates to a kind of train of reduction gears with auto-lock function and electric actuator thereof.
Background technique
Train of reduction gears plays coupling rotating speed and transmitting torque between prime mover and working machine or actuator, applies very extensive in modern mechanical.Slowing down, braking is the necessary mechanical transmission components of every profession and trade engineering goods, and its retarded motion and parking brake are two kinds of devices mutually restricted, and can not brake, can not move during braking during retarded motion.The device of retarded motion and parking brake two kinds restriction is mutually made a kind of device, can retarded motion can also to shut down self-locking and braking be machinery industry desired technical solution problem since the dawn of human civilization.Particularly the parking brake such as automatic valve, hoist, automobile, elevator, mass transport, lathe is the major issue being related to lives and properties and production safety.Usual deceleration and braking are two kinds of devices, be furnished with hydraulic system braking or electromagnetic braking, waste resource and the energy, complex structure, cost are high, in order to prevent hydraulic system or power failure security department, some braking device requires that equipment two overlaps braking device, such waste is more, and structure is more complicated, cost is higher.Also do not have at present both at home and abroad retarded motion can to shut down the product of self-locking and braking.Therefore research and development retarded motion can also shut down self-locking and braking train of reduction gears, and being the developing direction of machinery industry structure innovation, energy-saving and emission-reduction, low-carbon economy, is also the technical barrier that expert will solve always.
Model utility content
The purpose of this utility model there are provided a kind of train of reduction gears with auto-lock function and electric actuator thereof, solves the problem that traditional train of reduction gears cannot realize shutting down self-locking and braking.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of train of reduction gears with auto-lock function, comprise main shaft, jack shaft, be fixedly arranged on the output gear on main shaft, be fixedly arranged on the Self locking gears on jack shaft, be sheathed on the main shaft duplicate gear of also energy relative main rotation on main shaft, be sheathed on the jack shaft duplicate gear that jack shaft also can rotate relative to jack shaft; Main shaft duplicate gear and jack shaft duplicate gear all comprise the different size of the number of teeth two gears, and the number of teeth of gearwheel is more than the number of teeth of small gear; Self locking gears, main shaft duplicate gear, jack shaft duplicate gear, output gear engage successively, Self locking gears engages with the gearwheel of main shaft duplicate gear, the small gear of main shaft duplicate gear engages with the gearwheel of jack shaft duplicate gear, and the small gear of jack shaft duplicate gear engages with output gear; The velocity ratio of Self locking gears and output gear is not less than 20.
Preferably, the number of teeth of the gearwheel of main shaft duplicate gear is greater than the number of teeth of Self locking gears.
Preferably, the number of teeth of the gearwheel of main shaft duplicate gear is 1 ~ 10 times of the number of teeth of Self locking gears.
Preferably, the velocity ratio of Self locking gears and output gear is greater than 30.
With an electric actuator for auto-lock function, comprise motor and speed reducer; The train of reduction gears of above-mentioned band auto-lock function is installed in speed reducer; The output shaft of motor is provided with motor gear, and output shaft stretches into speed reducer, and motor gear engages with the gearwheel of main shaft duplicate gear.
Pass through technique scheme; a kind of train of reduction gears with auto-lock function that the utility model provides and electric actuator thereof; following technique effect can be realized: the train of reduction gears of the utility model band auto-lock function coordinates with external motor; during machine operation; retarded motion can be played; increase the function of moment of torsion, when motor stopping, can play and shut down self-locking and braking function.The utility model novel structure is unique, and can realize retarded motion by simple structure and shut down self-locking and braking, easily manufactured, cost is low, effective.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described.
Fig. 1 is a kind of speed-reducing gear-box structure schematic diagram with auto-lock function disclosed in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described.
Embodiment 1
Composition graphs 1, a kind of train of reduction gears with auto-lock function of the utility model, comprise main shaft 1, jack shaft 2, be fixedly arranged on the output gear 6 on main shaft 1, be fixedly arranged on the Self locking gears 3 on jack shaft 2, be sheathed on the main shaft duplicate gear 4 of also energy relative main 1 rotation on main shaft 1, be sheathed on the jack shaft duplicate gear 5 that jack shaft 2 also can rotate relative to jack shaft 2; Main shaft duplicate gear 4 and jack shaft duplicate gear 5 all comprise the different size of the number of teeth two gears, and the number of teeth of gearwheel is more than the number of teeth of small gear; Self locking gears 3, main shaft duplicate gear 4, jack shaft duplicate gear 5, output gear 6 engage successively, Self locking gears 3 engages with the gearwheel of main shaft duplicate gear 4, the small gear of main shaft duplicate gear 4 engages with the gearwheel of jack shaft duplicate gear 5, and the small gear of jack shaft duplicate gear 5 engages with output gear 6; Self locking gears 3 is not less than 20 with the velocity ratio of output gear 6, specifically can regulate velocity ratio by changing output gear 6, Self locking gears 3, the gearwheel of main shaft duplicate gear 4 and small gear, the gearwheel of jack shaft duplicate gear 5 and small gear, the number of teeth of such as Self locking gears 3 is 20, the gearwheel of main shaft duplicate gear 4 and the number of teeth of small gear are respectively 40 and 20, the gearwheel of jack shaft duplicate gear 5 and the number of teeth of small gear are respectively 40 and 20, the number of teeth of output gear 6 is 100, and Self locking gears 3 is 20 with the velocity ratio of output gear 6.
Working principle of the present utility model is as follows: external impetus mechanism such as the gearwheel of motor by the main shaft duplicate gear 4 of a kind of train of reduction gears with auto-lock function of gear and the utility model engages, for the utility model provides power; Also can rotate relative to jack shaft 2 because jack shaft duplicate gear 5 is sheathed on jack shaft 2, when therefore jack shaft duplicate gear 4 and jack shaft 2 relatively rotate, there is frictional force each other, the maximum static friction force of this frictional force is decided to be f
max.When machine operation, main shaft duplicate gear 4 rotates under the driving of motor, and because the gearwheel of Self locking gears 3 with main shaft duplicate gear 4 engages, the moment of torsion that now main shaft duplicate gear 4 acts on the power of Self locking gears 3 is far longer than f
maxact on the moment of torsion on Self locking gears 3, so Self locking gears 3 and jack shaft 2 are in " idle running " state, and jack shaft duplicate gear 5 and output gear 6 rotate under the drive of main shaft duplicate gear, by output gear 6 or main shaft 1 outputting power, the utility model plays the effect reducing rotating speed, heighten moment of torsion; When motor quits work, if when output gear 6 or main shaft 1 are subject to outside torsion, output gear 6 drives jack shaft duplicate gear 5, main shaft duplicate gear 4 by twisting force on Self locking gears 3, because Self locking gears 3 and the velocity ratio of output gear 6 are greater than 20, therefore torsion is very little through transmitting the moment of torsion acted on Self locking gears 3, generally, f is less than
maxact on the moment of torsion on Self locking gears 3, Self locking gears 3 is obstructed braking, and the utility model plays auto-lock function.
In order to better realize auto-lock function, the number of teeth of the gearwheel of main shaft duplicate gear 4 is more preferably greater than the number of teeth of Self locking gears 3; And the number of teeth of the gearwheel of main shaft duplicate gear 4 is excessive with the ratio of the number of teeth of Self locking gears 3, can affect efficiency of the present utility model again, the number of teeth of the gearwheel of main shaft duplicate gear 4 can be 1 ~ 10 times of the number of teeth of Self locking gears 3.And Self locking gears 3 and the velocity ratio of output gear 6 also directly affect self-locking effect, debugging finds in producing that the velocity ratio of Self locking gears 3 and output gear 6 is more preferably greater than 30.
Embodiment 2
With an electric actuator for auto-lock function, comprise motor and speed reducer; The train of reduction gears of the band auto-lock function in embodiment 1 is installed in speed reducer; The output shaft of motor is provided with motor gear, and output shaft stretches into speed reducer, and motor gear engages with the gearwheel of main shaft duplicate gear.
A kind of electric actuator with auto-lock function of the utility model can be used on the equipment such as automatic valve, elevator, hoist; regulate Self locking gears 3 and the velocity ratio of output gear 6 according to actual needs, better take into account reduction rotating speed, heighten moment of torsion and shut down auto-lock function.
To be apparent for those skilled in the art to the multiple amendment of embodiment, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. the train of reduction gears with auto-lock function, it is characterized in that, comprise main shaft, jack shaft, be fixedly arranged on the output gear on main shaft, be fixedly arranged on the Self locking gears on jack shaft, be sheathed on the main shaft duplicate gear of also energy relative main rotation on main shaft, be sheathed on the jack shaft duplicate gear that jack shaft also can rotate relative to jack shaft; Main shaft duplicate gear and jack shaft duplicate gear all comprise the different size of the number of teeth two gears, and the number of teeth of gearwheel is more than the number of teeth of small gear; Self locking gears, main shaft duplicate gear, jack shaft duplicate gear, output gear engage successively, Self locking gears engages with the gearwheel of main shaft duplicate gear, the small gear of main shaft duplicate gear engages with the gearwheel of jack shaft duplicate gear, and the small gear of jack shaft duplicate gear engages with output gear; The velocity ratio of Self locking gears and output gear is not less than 20.
2. the train of reduction gears of band auto-lock function according to claim 1, is characterized in that, the number of teeth of the gearwheel of main shaft duplicate gear is greater than the number of teeth of Self locking gears.
3. the train of reduction gears of band auto-lock function according to claim 1, is characterized in that, the number of teeth of the gearwheel of main shaft duplicate gear is 1 ~ 10 times of the number of teeth of Self locking gears.
4. the train of reduction gears of band auto-lock function according to claim 3, is characterized in that, the velocity ratio of Self locking gears and output gear is greater than 30.
5. the electric actuator with auto-lock function, is characterized in that, comprises motor and speed reducer; The train of reduction gears of the band auto-lock function of claim 1 is installed in speed reducer; The output shaft of motor is provided with motor gear, and output shaft stretches into speed reducer, and motor gear engages with the gearwheel of main shaft duplicate gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429591.XU CN204025539U (en) | 2014-07-31 | 2014-07-31 | A kind of train of reduction gears with auto-lock function and electric actuator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429591.XU CN204025539U (en) | 2014-07-31 | 2014-07-31 | A kind of train of reduction gears with auto-lock function and electric actuator thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025539U true CN204025539U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429591.XU Expired - Fee Related CN204025539U (en) | 2014-07-31 | 2014-07-31 | A kind of train of reduction gears with auto-lock function and electric actuator thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204025539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154183B (en) * | 2014-07-31 | 2017-01-11 | 苏州市弘达仪表厂(普通合伙) | Speed reducing gear group with self-locking function and electric actuating mechanism |
-
2014
- 2014-07-31 CN CN201420429591.XU patent/CN204025539U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154183B (en) * | 2014-07-31 | 2017-01-11 | 苏州市弘达仪表厂(普通合伙) | Speed reducing gear group with self-locking function and electric actuating mechanism |
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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: 20141217 Termination date: 20160731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |