CN201121687Y - Double-crankshaft double-pendulum line gear planet speed reducer - Google Patents
Double-crankshaft double-pendulum line gear planet speed reducer Download PDFInfo
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- CN201121687Y CN201121687Y CNU2007200415607U CN200720041560U CN201121687Y CN 201121687 Y CN201121687 Y CN 201121687Y CN U2007200415607 U CNU2007200415607 U CN U2007200415607U CN 200720041560 U CN200720041560 U CN 200720041560U CN 201121687 Y CN201121687 Y CN 201121687Y
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- double
- double cycloid
- speed reducer
- gear
- cycloid
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Abstract
The utility model discloses a double-crankshaft and double-cycloid epicyclic gear reduction unit, which comprises a side cover type box body (1), two double-throw crankshafts (2), a double-cycloid internal tooth ring (3), a synchronous gear (4) and a double-cycloid external gear output shaft (6), wherein, the side cover type box body (1) is internally provided with the two double-throw crankshafts (2) and the double-cycloid external gear output shaft (6) through three pairs of bearing seats, the double-cycloid internal tooth ring (3) and the synchronous gear (4) are arranged on the two double-throw crankshafts (2), and the double-cycloid internal tooth ring (3) is meshed with the double-cycloid external gear output shaft (6). The reduction unit of the utility model has the characteristics of large speed ratio, large output torque, large bearing capacity, strong overload capacity, stable transmission, small vibration, low working noise, high transmission efficiency, small size, light weight, etc.
Description
Technical field
The utility model relates to a kind of fewer differential teeth planetary speed reducer, is specifically related to hyperbolic axle double cycloid gear planetary speed reducer.
Background technique
China has the wide in variety and assorted of the used speed reducer of marine deck machinery now, and defective is more, mainly is: 1. speed ratio is little, output torque is smaller; 2. " heavy moment ratio " is big, and the speed reducer structure is heavy, and dimensional weight is big, arranges on boats and ships difficulty is installed; 3. some deck machinery adopts worm and gear speed-reduction apparatus, and total bearing capacity is not strong, and output torque is little, and overload capacity is relatively poor, and transmission efficiency is lower, manufacturing process complexity, cost height; 4. many model windlass, winch, towing winch, mooring arrangement all get used to adopting big modulus involute gear open type (no box) drive technology, this kind open type (no box) drive technology was once brought into play important function in shipbuilding industry, but many experts both at home and abroad think that obviously there is following major defect in it: (one) velocity ratio is less, output torque is little, and bearing capacity and overload capacity are poor; (2) transmission poor stability; (3) " heavy moment ratio " is big, and dimensional weight is bigger, and manufacture cost is higher; (4) the relatively lower η of total transmission efficiency=0.70～0.85; (5) concerning seagoing vessel, exposed gear is easy to be subjected to seawater corrosion, reduces working life.
Existing " three-ring speed reducer ", patent of invention 8510692.5, national sector standard YB/T079-1995, it is a kind of uniqueness " parallel axes---moving axis " gear transmission retarder, its gear engagement motion belongs to dynamic gear train, have the planetary drive with small teeth difference feature, parallel configuration between its output shaft and input shaft, it has the feature of parallel axes cylinder gear speed reducer simultaneously again.The structural design of existing " three-ring speed reducer " has fully been used the mechanism of power dividing and multiple tooth interior engagement, has realized that transmission speed ratio is big, and input power is big, the big and high gearing down pattern of transmission efficiency of output torque.Existing " three-ring speed reducer " is a kind of advanced technology of generally acknowledging of the same trade or business both at home and abroad, the planetary drive with small teeth difference retarder that has preeminent performance, " three-ring speed reducer " has the following advantages: 1. bearing capacity is bigger, overload capacity is stronger, many during transmission tooth is entered the meshing zone simultaneously, the Contact Tooth logarithm strengthens with load and increases, and can alleviate tooth loads; 2. velocity ratio is big, and classification is intensive; 3. transmission efficiency height, stage efficiency 92%---96% at full capacity places an order; 4. structure is compact, and volume is little, and is in light weight, than the little 1/3---2/3 of common cylinder gear reducer; 5. easily manufactured, need not special material and special thermal treatment; 6. the applicability broadness can be designed to structures such as horizontal, vertical, set type and combination transmission.
Also there is following shortcoming in existing " three-ring speed reducer ", needs to be improved raising:
What 1. its gear transmission was adopted is Involute Gear Pair, the gear teeth intensity of its gear a little less than, during engagement driving, Nie He gear teeth logarithm is less simultaneously in few tooth difference, its overload capacity is not strong; What 2. existing " three-ring speed reducer " adopted is three-throw crankshaft and three identical internal tooth ring plates, and processing technology is complicated, and machining accuracy is difficult to guarantee; Dynamic balance performance is relatively poor in the running for it, produces bigger dynamic unbalance vibration and noise, and the heating temperature rise is bigger, and operating life is not high; The manufacturing process complexity of 3. existing " three-ring speed reducer ", cost height, the market sale price is higher.
Summary of the invention
The purpose of this utility model is: a kind of hyperbolic axle double cycloid gear planetary speed reducer is provided, this speed reducer has that speed ratio is big, output torque is big, bearing capacity is big, overload capacity is strong, stable drive, vibration is little, operating noise is low, the little characteristics such as in light weight of the high and size of transmission efficiency.
Technical solution of the present utility model is: this speed reducer comprises limit cover type box body, two-throw crank shaft, double cycloid internal gear, synchromesh gear and double cycloid external gear output shaft, in the cover type box body of limit, two two-throw crank shafts and a double cycloid external gear output shaft are installed by three pairs of bearing supports, double cycloid internal gear and synchromesh gear are installed, double cycloid internal gear engagement double cycloid external gear output shaft on two-throw crank shaft.
In the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, the axle head center portion of double cycloid external gear output shaft is provided with interior six holes or half through hole.
In the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, between two-throw crank shaft axle journal position and the double cycloid internal gear resilient sleeve is installed, resilient sleeve is an elastic cylindrical body, on barrel, vertically open the otch of 6-8 wide 1-2mm, be positioned at the aperture of 6-8 Φ 3-4mm of barrel intermediate portion processing in the bottom of otch.
In the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, limit cover type box body is made up of main box body, base plate, active edges lid, the three pairs of bearing supports and limit base plate, main box body welding base plate, the active edges lid connects main box body by locating stud, and three pairs of bearing support welded and installed cover at base plate and active edges.
In the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, the base designs of limit cover type box body is in the vertical border area part of double cycloid external gear output shaft center line.
During installation, the output shaft of oil hydraulic motor or marine electric machine is that a two-throw crank shaft links to each other by spline with the speed reducer input shaft, is decelerated the double cycloid external gear output shaft of the direct speed reducer of main shaft of equipment; During use, the hydraulic motor output shaft high speed rotating, a two-throw crank shaft that drives speed reducer rotates, driving another root two-throw crank shaft by synchromesh gear rotates synchronously, when two synchronous two-throw crank shafts rotate, drive two double cycloid internal gears and do plane symmetry swing transmission, two double cycloid internal gears are meshed with a double cycloid external gear output shaft, double cycloid external gear output shaft obtains high pulling torque and slowly runs, and will hang down fast high pulling torque transmission of power by double cycloid external gear output shaft and give the equipment that is decelerated.
The utlity model has following advantage: (1) adopts two double cycloid internal gears that two-throw crank shaft is identical with two, three-throw crankshaft and three internal gears of replacing " three-ring speed reducer ", simplified structure, simplified processing process, improve machining accuracy, improve its dynamic balance performance, cut down finished cost simultaneously; (2) " resilient sleeve " is installed between two-throw crank shaft axle journal position and double cycloid internal gear, utilize " resilient sleeve " under external load function, to have minimal shrink distortion (0.02～0.06mm) ability, by the dynamic unbalances that parts produced such as double cycloid internal gear vibration, reduce operational noise and heating when absorbing the speed reducer running; (3) adopt two double cycloid internal gears and a double cycloid external gear output shaft to be meshing with each other, constitute few tooth difference transmission double cycloid gear pair, overcome the inadequate natural endowment of " three-ring speed reducer " Involute Gear Pair, increased gear teeth intensity, produce large speed ratio and obtain big output torque; (4) design six square tube holes or half through hole in the center portion of double cycloid external gear output shaft, conveniently neutralization is docked, save a cover large torque shaft coupling, good economy performance with the input shaft that is decelerated equipment (being with six square toes); (5) adopt limit cover type box body, improve the rigidity of casing, increase is to the ability to bear of dynamic unbalance vibration, reduce noise, avoided conventional " split type casing " to exist and made and problems such as assembling inconvenience and the easy seepage fluid of poor rigidity, simultaneously, the base designs of casing at the border area position vertical with the output shaft center line, is convenient to the equipment of main shaft levels runnings such as winch, windlass neutralization be installed and is connect.
Description of drawings
Fig. 1 is a hyperbolic axle double cycloid gear planetary speed reducer structure principle chart.
Fig. 2 is Fig. 1's " resilient sleeve " structure principle chart.
Fig. 3 is the limit cover type box body structure schematic diagram of Fig. 1.
Among the figure: 1. limit cover type box body, 2. two-throw crank shaft, 3. double cycloid internal gear, 4. synchronizing wheel wheel, 5. idle pulley, 6. double cycloid external gear output shaft, 7. resilient sleeve, 8. rolling bearing, 9. main box body, 10. base plate, 11. the active edges lid, 12. bearing supports, 13. limit base plates, 14. otch, 15. apertures.
Embodiment
As shown in Figure 1, this speed reducer comprises limit cover type box body 1, two-throw crank shaft 2, double pendulum interior lines ring gear 3, synchromesh gear 4 and double cycloid external gear output shaft 6, in limit cover type box body 1, two two-throw crank shafts 2 and a double cycloid external gear output shaft 6 are installed by three pairs of bearing supports 12, double cycloid internal gear 3 and synchromesh gear 4 are installed, double cycloid internal gear 3 engagement double cycloid external gear output shafts 6 on two-throw crank shaft 2.
In the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, the axle head center portion of double cycloid external gear output shaft 6 is provided with interior six holes or half through hole.
As shown in Figure 2, in the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, resilient sleeve 7 is installed between the axle journal position of two-throw crank shaft 2 and the double cycloid internal gear 3, resilient sleeve 7 is an elastic cylindrical body, on barrel, vertically open the otch 14 of 6-8 wide 1-2mm, be positioned at the aperture 15 of 6-8 Φ 3-4mm of barrel intermediate portion processing in the bottom of otch 14.
As shown in Figure 3, in the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, limit cover type box body 1 is made up of main box body 9, base plate 10,11, three pairs of bearing supports 12 of active edges lid and limit base plate 13, main box body 9 welding base plates 10, active edges lid 11 connects 9, three pairs of bearing support 12 welded and installed of main box body on base plate 10 and active edges lid 11 by locating stud.
In the hyperbolic axle double cycloid gear planetary speed reducer of the present utility model, base 10 designs of limit cover type box body 1 are in the vertical border area part of double cycloid external gear output shaft 6 center lines.
During installation, the output shaft of oil hydraulic motor or marine electric machine and speed reducer input shaft i.e. two-throw crank shaft 2 link to each other by spline, are decelerated the double cycloid external gear output shaft 6 of the direct speed reducer of main shaft of equipment; During use, the hydraulic motor output shaft high speed rotating, a two-throw crank shaft 2 that drives speed reducer rotates, driving another root two-throw crank shaft 2 by synchromesh gear 4 rotates synchronously, when two synchronous two-throw crank shafts 2 rotate, drive two double cycloid internal gears 3 and do plane symmetry swing transmission, two double cycloid internal gears 3 are meshed with a double cycloid external gear output shaft 6, double cycloid external gear output shaft 6 obtains high pulling torque and slowly runs, and will hang down fast high pulling torque transmission of power by double cycloid external gear output shaft 6 and give the equipment that is decelerated.
Claims (8)
1. hyperbolic axle double cycloid gear planetary speed reducer, it is characterized in that: this speed reducer comprises limit cover type box body (1), two-throw crank shaft (2), double cycloid internal gear (3), synchromesh gear (4) and double cycloid external gear output shaft (6), in limit cover type box body (1), two two-throw crank shafts (2) and a double cycloid external gear output shaft (6) are installed by three pairs of bearing supports (12), go up installation double pendulum internal gear (3) and synchromesh gear (4) at two-throw crank shaft (2), double cycloid internal gear (3) engagement double cycloid external gear output shaft (6).
2. hyperbolic axle double cycloid gear planetary speed reducer according to claim 1, it is characterized in that: the axle head center portion of double cycloid external gear output shaft (6) is provided with interior six holes or half through hole.
3. hyperbolic axle double cycloid gear planetary speed reducer according to claim 1, it is characterized in that: between the axle journal position of two-throw crank shaft (2) and the double cycloid internal gear (3) resilient sleeve (7) is installed, resilient sleeve (7) is an elastic cylindrical body, vertically opens otch (14) on barrel.
4. hyperbolic axle double cycloid gear planetary speed reducer according to claim 3 is characterized in that: be positioned at barrel intermediate portion processing aperture (15) in the bottom of otch (14).
5. hyperbolic axle double cycloid gear planetary speed reducer according to claim 3 is characterized in that: the otch (14) of vertically opening 6-8 wide 1-2mm on barrel.
6. hyperbolic axle double cycloid gear planetary speed reducer according to claim 3 is characterized in that: the aperture (15) that is positioned at 6-8 Φ 3-4mm of barrel intermediate portion processing in the bottom of otch (14).
7. hyperbolic axle double cycloid gear planetary speed reducer according to claim 1, it is characterized in that: limit cover type box body (1) is made up of main box body (9), base plate (10), active edges lid (11), three pairs of bearing supports (12) and limit base plate (13), main box body (9) welding base plate (10), active edges lid (11) connects main box body (9) by locating stud, and three pairs of bearing welding bases (12) are installed on base plate (10) and the active edges lid (11).
8. hyperbolic axle double cycloid gear planetary speed reducer according to claim 7 is characterized in that: base (10) design of limit cover type box body (1) is in the vertical border area part of double cycloid external gear output shaft (6) center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200415607U CN201121687Y (en) | 2007-11-23 | 2007-11-23 | Double-crankshaft double-pendulum line gear planet speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200415607U CN201121687Y (en) | 2007-11-23 | 2007-11-23 | Double-crankshaft double-pendulum line gear planet speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121687Y true CN201121687Y (en) | 2008-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200415607U Expired - Fee Related CN201121687Y (en) | 2007-11-23 | 2007-11-23 | Double-crankshaft double-pendulum line gear planet speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121687Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813164A (en) * | 2010-05-01 | 2010-08-25 | 吴声震 | Wind power generation single-stage pitch control double-cycloid speed reducer |
| CN101825154A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating dual-cycloid variable-blade reducer |
| CN101832238A (en) * | 2010-05-01 | 2010-09-15 | 吴声震 | Wind power generating three-sheet double cycloid single-stage pitch reducer |
| CN105782355A (en) * | 2016-04-08 | 2016-07-20 | 陈基甸 | Single-input double-output transmission device |
-
2007
- 2007-11-23 CN CNU2007200415607U patent/CN201121687Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813164A (en) * | 2010-05-01 | 2010-08-25 | 吴声震 | Wind power generation single-stage pitch control double-cycloid speed reducer |
| CN101825154A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating dual-cycloid variable-blade reducer |
| CN101832238A (en) * | 2010-05-01 | 2010-09-15 | 吴声震 | Wind power generating three-sheet double cycloid single-stage pitch reducer |
| CN101813164B (en) * | 2010-05-01 | 2012-07-04 | 吴声震 | Wind power generation single-stage pitch control double-cycloid speed reducer |
| CN105782355A (en) * | 2016-04-08 | 2016-07-20 | 陈基甸 | Single-input double-output transmission device |
| CN105782355B (en) * | 2016-04-08 | 2017-12-19 | 陈基甸 | The transmission device of single-input double-output |
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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: 20080924 Termination date: 20151123 |