CN203115038U - Improved-type reduction gear - Google Patents
Improved-type reduction gear Download PDFInfo
- Publication number
- CN203115038U CN203115038U CN 201320077135 CN201320077135U CN203115038U CN 203115038 U CN203115038 U CN 203115038U CN 201320077135 CN201320077135 CN 201320077135 CN 201320077135 U CN201320077135 U CN 201320077135U CN 203115038 U CN203115038 U CN 203115038U
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- Prior art keywords
- eccentric
- worm gear
- wheel
- stacked
- speed reducer
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of reduction gears, in particular to an improved-type reduction gear. The improved-type reduction gear comprises a box body and an upper cover, wherein a locating shaft is installed between the box body and the center of the upper cover. A worm gear, a locating difference wheel, eccentric wheels and a wire wheel are arranged on the locating shaft in a sleeved mode. Multiple layers of eccentric shafts which are stacked are arranged in the middle of the worm gear, and the locating shaft serves as the center by the eccentric shafts which are arranged in a mutual-equal-phase mode. The number of the eccentric wheels is consistent with the number of the eccentric shafts which are stacked on the worm gear. The size of center holes of the eccentric wheels is matched with the size of the eccentric shafts which are stacked on the worm gear. The eccentric wheels are rotated in an eccentric mode. The acting force to the locating shaft is balanced to the force driving the eccentric shafts. Therefore, intensity requirements of the box body and the upper cover can be reduced. The eccentric wheels are balanced mutually. Efficiency to a reducer is effectively improved. Noises are reduced. Meanwhile, output power requirements to an external motor can be reduced, the reducer is stressed wholly in a balanced mode, and rigidity requirements to parts are reduced. The service life of the reducer is improved, and production cost can be reduced.
Description
Technical field
The utility model relates to the speed reducer technical field, refers in particular to a kind of modified model speed reducer.
Background technique
The claimant has proposed the Chinese utility application of " electronic waist holder system driving device " by name on May 19th, 2012, and application number is " 201220252135.3 ".This model utility comprises casing, loam cake, worm screw, worm gear, line wheel, eccentric wheel, and casing and loam cake are combined into box body, and box body has the wire casing of going out, has worm gear in the casing, worm gear cooperates with worm screw, and worm-wheel shaft has the eccentric wheel of eccentric motion to driving, and eccentric shaft is taken turns to drive wire.This model utility adopts the eccentric wheel of 2 eccentric motions of worm-gear driven, the scheme of 2 eccentric wheel while drive wire wheels, each drive post on the line wheel is simultaneously stressed when motion, to guarantee line wheel moving equilibrium, the number of teeth of eccentric wheel and positioning wheel differs very little, thereby whole volume is less, drives the efficient height, adopts stacked multistage transmission, realize big speed ratio, global stability is better, long service life.
In actual R﹠D process, claimant's Continual Improvement is designed improved structure, structural behaviour more originally is more stable, efficient is higher, noise is lower, cost is lower, life-span is longer, and therefore, the claimant proposes the utility model patent application in original technical foundation.
The model utility content
The purpose of this utility model is to improve original project organization, a kind of modified model speed reducer is provided, this modified model speed reducer is more stable more than original design, further reduced volume, raise the efficiency, reduce noise, raising life-span, reduce cost.
For achieving the above object, the utility model is achieved through the following technical solutions:
The modified model speed reducer, comprise casing, loam cake, between the center of casing and loam cake positioning shaft is installed, be arranged with worm gear, poor location minute wheel, eccentric wheel, line wheel on the positioning shaft, the middle part of described worm gear has stacked multilayer eccentric shaft, each eccentric shaft is mutually equiphase and arranges centered by positioning shaft, the quantity of stacked eccentric shaft is consistent on eccentric quantity and the worm gear, and each stacked on each eccentric center hole and worm gear eccentric shaft size is complementary.
The eccentric shaft of described worm gear is arranged by order from small to large from top to bottom.
Described eccentric wheel has external tooth and a plurality of drive hole, and each eccentric external tooth is consistent with drive hole quantity.
Can be, described eccentric wheel has 2, and the stacked eccentric shaft quantity of worm gear is 2 layers.
Also can be, described eccentric wheel has 3, and the stacked eccentric shaft quantity of worm gear is 3 layers.
Concrete, described 2 layers of eccentric shaft are by being mutually 180 degree phase place arranged off-centre.
Perhaps, described 3 layers of eccentric shaft are by being mutually 120 degree phase place arranged off-centre.
Described line wheel has drive post, and eccentric wheel has drive hole, and the drive post corresponding inserted is in each eccentric drive hole.
The beneficial effects of the utility model are: be mutually equiphase centered by positioning shaft a plurality of eccentric wheels are set, each eccentric wheel in off-centre rotation to the force balance of positioning shaft and line wheel drive post, therefore, can reduce the requirement of strength of casing and loam cake, make line wheel transmission balance, mutual balance between the eccentric wheel, improve the retarder mechanical efficiency, simultaneously, can reduce the demanded power output to external motor, improve the retarder life-span, the whole stress balance of retarder, rigidity to part requires to descend, and improves working life, can reduce production costs.
Description of drawings
Fig. 1 is STRUCTURE DECOMPOSITION schematic representation of the present utility model;
Fig. 2 is part-structure assembling schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
See Fig. 1---Fig. 2, the utility model modified model speed reducer comprises: casing 11, loam cake 12, positioning shaft 13 is installed between the center of casing 11 and loam cake 12, be arranged with worm gear 14, poor location minute wheel 15, eccentric wheel, line wheel 18 on the positioning shaft 13, eccentric wheel has a plurality of, and is mutually the equiphase setting centered by positioning shaft 13.
The middle part of described worm gear 14 has eccentric shaft 19, and eccentric shaft 19 has the eccentric layer consistent with eccentric wheel quantity, and each eccentric layer is 1 eccentric wheel of corresponding matching respectively, and described eccentric wheel has external tooth and drive hole; Eccentric center hole will wear for positioning shaft 13 on the one hand, to wear for the eccentric shaft 19 of worm gear 14 on the other hand, simultaneously, also to centered by positioning shaft 13, be mutually the equiphase setting, so, the diameter of each eccentric center hole is different, and this paper said " being mutually the equiphase setting centered by positioning shaft 13 " refers to: the eccentric assembly direction of consistent each the eccentric center hole simultaneously with drive hole of each eccentric external tooth is mutually equiphase.
The eccentric layer of described eccentric shaft 19 is mutually the equiphase setting centered by positioning shaft 13.
Can be, described eccentric wheel has 2: first eccentric wheel 16, second eccentric wheel 17, the biasing post 19 of worm gear 14 has 2 eccentric layers, first eccentric wheel 16, second eccentric wheel 17 are mutually the equiphase setting centered by positioning shaft 13, the eccentric direction equiphase angle of the center hole of first eccentric wheel 16, second eccentric wheel 17 is 180 degree, and the thickness of first eccentric wheel 16 of the present utility model, second eccentric wheel 17 can be half of eccentric thickness in the former patent application of claimant.
As shown in Figure 2, described line wheel 18 has drive post 22, drive post 22 corresponding inserted are in second drive hole 21 of first drive hole 20 of first eccentric wheel 16, second eccentric wheel 17, each drive post 22 all is subjected to the restriction of first drive hole 20, second drive hole 21 simultaneously, can make line wheel 18 can not produce swing when rotated like this, rotation steadily.
When the internal tooth of the eccentric rotation in first eccentric wheel, 16 clockwise direction left bottoms and poor location minute wheel 15 meshes, wherein the drive post 22 of half is subjected to the rotary thrust of first eccentric wheel 16, second half drive post 22 does not stress, meanwhile, second eccentric wheel 17 is to the internal tooth engagement of upper right off-centre rotation with poor location minute wheel 15, make the aforementioned drive post that does not stress 22 be subjected to the rotary thrust of second eccentric wheel 17, so just make that each drive post 22 is simultaneously stressed even, line is taken turns 18 stress balances and is produced steadily rotation.
Same, first eccentric wheel 16 and second eccentric wheel 17 are when off-centre is rotated separately, positioning shaft 13 applied forces also owing to being subjected to payment, symmetric relation are realized balance, simultaneously, behind positioning shaft 13 stress balances, mutual balance between first eccentric wheel 16 and second eccentric wheel 17, bigger raising the mechanical efficiency of retarder.So casing 11 does not need to use stronger material to fix positioning shaft 13 with loam cake 12, can reduce the requirement of strength of casing 11 and loam cake 12; Simultaneously, because line is taken turns 18 stress balances and steadily rotated, then can improve the mechanical efficiency of retarder, and then can reduce the demanded power output to external motor, can adopt the external motor of smaller power; The whole stress balance of the utility model and efficient improve, and can reduce production costs, and reduce noise, promote the working life of product.
Be that example is described introduction with two eccentric wheels among the figure, these two eccentric wheels are mutually the equiphase setting centered by positioning shaft 13, in theory, eccentric wheel more than 2 and 2, as long as centered by positioning shaft 13, be mutually the equiphase setting, cooperating the biasing post 19 of counter structure, all is to realize basic purpose of the present utility model:
(1) positioning shaft 13 is more stable;
(2) mutual balance between the eccentric wheel;
(3) line wheel 18 rotation stress balances are exported more stable;
(4) reduce the requirement of strength of casing 11 with loam cake 12;
(5) reduction is to the demanded power output of external motor;
(6) cost reduces;
(7) reduce noise;
(8) mechanical efficiency of raising product
(9) working life of prolongation product.
Certainly, eccentric quantity is more many, assembles more complicated, more big at positioning shaft 13 thickness on axially.
Be 3 as eccentric wheel, the biasing post 19 of worm gear 14 has 3 eccentric layers, and each eccentric wheel is mutually the equiphase setting centered by positioning rod 13, and the eccentric direction equiphase angle of each eccentric center hole is 120 degree.
Certainly, the embodiment of the above, it is preferred embodiments of the present utility model, and unrestricted the utility model practical range, so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify, and all should be included in the utility model claim.
Claims (8)
1. modified model speed reducer, comprise casing, loam cake, between the center of casing and loam cake positioning shaft is installed, be arranged with worm gear, poor location minute wheel, eccentric wheel, line wheel on the positioning shaft, it is characterized in that: the middle part of described worm gear has stacked multilayer eccentric shaft, each eccentric shaft is mutually equiphase and arranges centered by positioning shaft, the quantity of stacked eccentric shaft is consistent on eccentric quantity and the worm gear, and each stacked on each eccentric center hole and worm gear eccentric shaft size is complementary.
2. modified model speed reducer according to claim 1 is characterized in that: the eccentric shaft of described worm gear is arranged by order from small to large from top to bottom.
3. modified model speed reducer according to claim 2, it is characterized in that: described eccentric wheel has external tooth and a plurality of drive hole, and each eccentric external tooth is consistent with drive hole quantity.
4. modified model speed reducer according to claim 3, it is characterized in that: described eccentric wheel has 2, and the stacked eccentric shaft quantity of worm gear is 2 layers.
5. modified model speed reducer according to claim 3, it is characterized in that: described eccentric wheel has 3, and the stacked eccentric shaft quantity of worm gear is 3 layers.
6. modified model speed reducer according to claim 4 is characterized in that: described 2 layers of eccentric shaft are by being mutually 180 degree phase place arranged off-centre.
7. modified model speed reducer according to claim 5 is characterized in that: described 3 layers of eccentric shaft are by being mutually 120 degree phase place arranged off-centre.
8. modified model speed reducer according to claim 1 is characterized in that: described line wheel has drive post, and eccentric wheel has drive hole, and the drive post corresponding inserted is in each eccentric drive hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077135 CN203115038U (en) | 2013-02-19 | 2013-02-19 | Improved-type reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320077135 CN203115038U (en) | 2013-02-19 | 2013-02-19 | Improved-type reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115038U true CN203115038U (en) | 2013-08-07 |
Family
ID=48895387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320077135 Expired - Fee Related CN203115038U (en) | 2013-02-19 | 2013-02-19 | Improved-type reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115038U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158592A (en) * | 2013-02-19 | 2013-06-19 | 东莞市凌锐汽车零部件有限公司 | Modified type reduction gear |
| CN109058279A (en) * | 2018-11-01 | 2018-12-21 | 长沙多浦乐泵业科技有限公司 | A kind of eccentric wheel |
| CN112178150A (en) * | 2020-09-29 | 2021-01-05 | 东台世恒机械科技有限公司 | Noise reduction transmission mechanism and reinforced motion assembly of deep-pressing embosser |
-
2013
- 2013-02-19 CN CN 201320077135 patent/CN203115038U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103158592A (en) * | 2013-02-19 | 2013-06-19 | 东莞市凌锐汽车零部件有限公司 | Modified type reduction gear |
| CN109058279A (en) * | 2018-11-01 | 2018-12-21 | 长沙多浦乐泵业科技有限公司 | A kind of eccentric wheel |
| CN109058279B (en) * | 2018-11-01 | 2024-04-26 | 长沙多浦乐泵业科技有限公司 | Eccentric wheel |
| CN112178150A (en) * | 2020-09-29 | 2021-01-05 | 东台世恒机械科技有限公司 | Noise reduction transmission mechanism and reinforced motion assembly of deep-pressing embosser |
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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: 20130807 Termination date: 20150219 |
|
| EXPY | Termination of patent right or utility model |