CN202091432U - A speed reducer with small tooth difference - Google Patents
A speed reducer with small tooth difference Download PDFInfo
- Publication number
- CN202091432U CN202091432U CN2011202129574U CN201120212957U CN202091432U CN 202091432 U CN202091432 U CN 202091432U CN 2011202129574 U CN2011202129574 U CN 2011202129574U CN 201120212957 U CN201120212957 U CN 201120212957U CN 202091432 U CN202091432 U CN 202091432U
- Authority
- CN
- China
- Prior art keywords
- eccentric shaft
- speed reducer
- electric flat
- flat carriage
- internal tooth
- 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
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 44
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 230000009467 reduction Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 13
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Images
Landscapes
- Retarders (AREA)
Abstract
The utility model discloses a speed reducer with a small tooth difference. A first eccentric shaft is arranged in the cavity of the case body of the reducer; the first eccentric shaft and a power device transmit a power from the power device to the first eccentric shaft through meshed gears to drive first eccentric shaft to rotate; two internal toothed circular plates are arranged on the first eccentric shaft; a second eccentric shaft and a third eccentric shaft are arranged on the two internal toothed circular plates; the first eccentric shaft, the second eccentric shaft and the third eccentric shaft are distributed on the two internal toothed circular plates in an equilateral triangular mode; the internal teeth arranged on the two internal toothed circular plates are meshed with the external teeth on an output shaft in a small-tooth difference and multi-phase mode; and a gear on the output shaft is driven to do circumferential movement to drive the output shaft to rotate. The speed reducer with the small tooth difference has common advantages of multi-gear engagement, low cost, compact structure, strong bearing capability and the like; the transmission ratio is large, so that an extra speed reducing mechanism is not required; and one speed reducer can synchronize two driving wheels of an electric flat vehicle, so that the using cost is reduced.
Description
Technical field
The utility model relates to the retarder in a kind of power transmission field, especially a kind of few tooth difference speed reducer that is used for electric flat carriage.
Background technique
At present, in field of metallurgical equipment, use haulage vehicle, the use of electric flat carriage is particularly extensive more.
The common two-stage cylindrical gear reducer of the many uses of traditional electric flat carriage, for such speed reducer, velocity ratio is generally between 7.1-50, velocity ratio is big more, the centre distance of speed reducer, form structure, the just big and transmission efficiency reduction of installation dimension, and the rotating speed of electric flat carriage wheel is generally between 20-25 rev/min, this just requires the velocity ratio of reducing gear can reach more than the 70-75 at least, all can not reach this velocity ratio for common two-stage cylindrical gear reducer, also need extra reducing gear, as: belt transmission, exposed gear transmission (being used for the undemanding occasion of usage requirement) etc., make the transmission complexity of electric flat carriage whole reducing mechanism, increase fabricating cost.
At present, the reducing gear of electric flat carriage also uses the modular combination helical speed reduction gear, its transmission principle also is to adopt the multistage transmission of cylindrical gears, velocity ratio can reach usage requirement, save extra reducing gear, but this type of speed reducer is owing to be subjected to shape limitation, the internal gear element is less, the moment of torsion that can carry is less, does not reach usage requirement, so, all there are being two modular combination gear reduction units to be installed in simultaneously on two adhesion wheels on the electric flat carriage, cause user cost to increase, and two speed reducers uses synchronously, extra automatical control system increased.
Summary of the invention
At existing electric flat carriage reducing gear above shortcomings in use, the purpose of this utility model provides a kind of few tooth difference speed reducer that is used for electric flat carriage, to lack tooth difference speed reducer structure applications in electric flat carriage, satisfy simple in structurely, easy to install, the output torque of a speed reducer just can reach conditions such as usage requirement.
The technical solution of the utility model: a kind of few tooth difference speed reducer, comprise reduction case and power plant, form cavity in the middle of the reduction case; It is characterized in that: be provided with first eccentric shaft in the cavity of reduction case, first eccentric shaft and the gear of described power plant by being meshed make power be transferred to first eccentric shaft by power plant, drive first eccentric shaft and rotate; First eccentric shaft is provided with two internal tooth ring plates, on two internal tooth ring plates, is provided with second eccentric shaft and the 3rd eccentric shaft simultaneously, and first eccentric shaft, second eccentric shaft and the 3rd eccentric shaft are equilateral triangle and distribute on internal tooth ring plate; The internal tooth that is provided with on two internal tooth ring plates becomes with external tooth on the output shaft that few tooth is poor, the leggy engagement, and the gear that drives simultaneously on the output shaft is made circular movement, drives output shaft and rotates.
Further feature is: the input gear is set on the output shaft of power plant, on first eccentric shaft middle gear is set, the middle gear that is meshed by the input gear driven rotates, and power is inputed to first eccentric shaft.
The profile of internal tooth ring plate is an equilateral triangle, and the angle is a circular arc, and center and center of gravity all overlap with the top circle center of internal tooth ring plate internal tooth; Two internal tooth ring plate profile unanimities are equal in weight.
A kind of structure that comprises the electric flat carriage of described few tooth difference speed reducer is characterized in that: described few tooth difference speed reducer is arranged on electric flat carriage stand bottom surface, and reduction case is all stretched out at the output shaft two ends of described few tooth difference speed reducer; The two ends of output shaft are connected with electric flat carriage adhesion wheel axle by two coupling respectively; Two electric flat carriage adhesion wheel assemblings are arranged on the left and right both sides of electric flat carriage stand bottom surface, and two electric flat carriage adhesion wheel axles are installed in two adhesion wheel fit ons respectively.
Described few tooth difference speed reducer is installed in the central position of two electric flat carriage adhesion wheel axles.
The two ends of output shaft are provided with keyway.
Few tooth difference speed reducer of the present utility model with respect to prior art, has following characteristics:
(1) it is total to have few tooth difference speed reducer: advantages such as multiple tooth engagement, cost are low, compact structure, bearing capacity are strong;
(2) velocity ratio is big, does not need extra reducing gear;
(3) it is synchronous to satisfy two adhesion wheels of electric flat carriage with a speed reducer, reduces user cost;
(4) installation of speed reducer, convenient disassembly.
Description of drawings
Fig. 1 is the utility model speed reducer drive mechanism sectional view;
Fig. 2 is the utility model speed reducer back flow side view;
Fig. 3 is that the utility model speed reducer uses the structural drawing on electric flat carriage.
Among the figure, the 1-disc; The 2-output shaft; The 3-left end cap; 4-first eccentric shaft; The 5-power plant; The 6-middle gear; 7-imports gear; The 8-reduction case; The 9-right end cap; The 10-internal tooth ring plate; 11-second eccentric shaft; 12-the 3rd eccentric shaft; 21-electric flat carriage stand; The assembling of 22-electric flat carriage adhesion wheel; 23-electric flat carriage adhesion wheel axle; The 24-coupling; 25-few tooth difference speed reducer of the present utility model.
Embodiment
The utility model is described in further detail in conjunction with literal to utilize accompanying drawing below.
In Fig. 1,2, a kind of few tooth difference speed reducer of the present utility model comprises reduction case 8, left end cap 3, right end cap 9, forms cavity in the middle of the reduction case 8; In the cavity of reduction case 8, be provided with first eccentric shaft 4, first eccentric shaft 4 is provided with middle gear 6, power plant 5(motor with adapted) going up the input gear 7 that (connection) is set is meshed, make power be transferred to first eccentric shaft 4 by power plant 5, drive first eccentric shaft 4 and rotate, form the first order and slow down; First eccentric shaft 4 is provided with two internal tooth ring plates 10, and internal tooth ring plate 10 is connected on first eccentric shaft 4 of importing power (connecting with roller bearing among the figure).When power plant 5 rotate, drive 4 rotations of first eccentric shaft by first order gear transmission, first eccentric shaft 4 drives two internal tooth ring plates 10 are done eccentric circle in vertical plane round translation; On two internal tooth ring plates 10, also be provided with second eccentric shaft 11 and the 3rd eccentric shaft 12 simultaneously, on two internal tooth ring plates 10, just be provided with three eccentric shafts, promptly import first eccentric shaft 4 of power and second eccentric shaft 11, the 3rd eccentric shaft 12, three eccentric shafts are equilateral triangle and distribute on internal tooth ring plate 10, triangle center overlaps with the internal tooth top circle center of internal tooth ring plate 10, the profile of internal tooth ring plate 10 also is an equilateral triangle simultaneously, the angle is a circular arc, and center and center of gravity all overlap with the internal tooth top circle center of internal tooth ring plate 10; Two internal tooth ring plate 10 profile unanimities are equal in weight or approximately equal.Internal tooth ring plate 10 drives after the translation under the effect of first eccentric shaft 4 and is attached thereto other two eccentric shafts that connect and does eccentric round translation in the vertical plane, three eccentric shafts play a part power dividing, reduce the impact force that internal tooth ring plate 10 monodentates are subjected to, and be unlikely to occur the phenomenon of broken teeth.The position of first eccentric shaft 4 is a peak among the figure, and second eccentric shaft 11 and the 3rd eccentric shaft 12 are below.The internal tooth that is provided with on two internal tooth ring plates 10 is meshed with the external tooth on the output shaft 2, its modulus is identical, it is poor that the number of teeth forms few tooth, can be meshed and rotate, first, second, third 3 eccentric shafts can be respectively three phase places simultaneously with output shaft 2 on gear parts do that few tooth is poor, the leggy engagement, the external tooth that drives on the output shaft 2 is made circular movement, drives output shaft 2 simultaneously and rotates, and dynamic torque is exported.Both numbers of teeth are looked into and are generally 1 tooth, 2 teeth or 3 teeth.Reduction case 8 is all stretched out at the two ends of output shaft 2, and the two ends of output shaft 2 are provided with keyway, be convenient to two adhesion wheel axles of electric flat carriage between be connected with coupling.
(connection) is set on second eccentric shaft 11 and/or the 3rd eccentric shaft 12 disc 1, is convenient in rotation process the lubricating oil splash in the reduction case 8 is lubricated associated components.First eccentric shaft 4 is provided with the keyway that is connected with middle gear 6, and second eccentric shaft 11 and/or the 3rd eccentric shaft 12 are provided with the keyway that is connected with disc 1, and all the other boundary dimension three eccentric shafts are just the same.On first eccentric shaft 4, second eccentric shaft 11, the 3rd eccentric shaft 12, output shaft 2, be provided with spring bearing, be connected with left end cap 3, right end cap 9.
Referring to Fig. 3, as can be seen from the figure: the bearing support of two electric flat carriage adhesion wheel assemblings 22 and few tooth difference speed reducer 25 of the present utility model all are arranged on below the electric flat carriage stand 21, be to be connected electric flat carriage stand 21 bottom surfaces among the figure by connecting bolt, the two ends of the output shaft 2 of few tooth difference speed reducer 25 of the present utility model are provided with keyway, the two ends of output shaft 2 are connected with electric flat carriage adhesion wheel axle 23 by coupling 24 respectively, and left and right two electric flat carriage adhesion wheel axles 23 are installed in respectively in left and right two adhesion wheels assembling 22 of electric flat carriage.The output shaft 2 at described few tooth difference speed reducer 25 two ends drives two electric flat carriage adhesion wheel axles 23 simultaneously and rotates, and drives electric flat carriage adhesion wheel assembling 22 again and rotates, and drives electric flat carriage to overtake.
Few tooth difference speed reducer 25 of the present utility model is installed on the central position of two adhesion wheel axles 23 of electric flat carriage, both can make two ends adhesion wheel stress balance, can make two adhesion wheels assembling start and stop simultaneously again, reaches to be synchronized with the movement.
Working principle of the present utility model and process:
(1) adopts the two-stage transmission principle, utilize the column gear transmission of the first order, reduce the eccentric shaft rotating speed;
(2) transmission principle of a tooth difference is adopted in the second level;
(3) first order velocity ratio is between 1-3, and second level velocity ratio can be selected arbitrarily between 29-99, and resultant gear ratio can satisfy the desired velocity ratio of electric flat carriage reducing gear;
(4) the inner second level of speed reducer is few tooth difference transmission, and internal tooth ring plate is two, is furnished with three eccentric shaft bearing holes on it.For making three eccentric shaft equalising torques, its being arranged as on ring flat-plate is equilateral triangle according to internal tooth ring plate internal tooth top circle center and arranges, simultaneously, the profile of internal tooth ring plate also is an equilateral triangle, and the angle is a circular arc, and the center overlaps with internal tooth top circle center, the center of gravity of internal tooth ring plate and center overlap, and the profile unanimity of two ring flat-plates is equal in weight or approximately equal, and moment is equal substantially when making the motion of three eccentric shafts;
(5) output shaft that will lack tooth difference speed reducer is made the axle of two ends band keyway, the axle with two adhesion wheel axles of electric flat carriage between the employing coupling be connected, speed reducer is installed on the neutral position of two adhesion wheel axles, can makes two adhesion wheels reach synchronous operation, and dynamical balancing.
Claims (6)
1. a few tooth difference speed reducer comprises reduction case (8) and power plant (5), forms cavity in the middle of the reduction case (8); It is characterized in that: in the cavity of reduction case (8), be provided with first eccentric shaft (4), first eccentric shaft (4) and the gear of described power plant (5) by being meshed, make power be transferred to first eccentric shaft (4), drive first eccentric shaft (4) and rotate by power plant (5); ((4) are provided with two internal tooth ring plates (10) to first eccentric shaft, on two internal tooth ring plates (10), be provided with second eccentric shaft (11) and the 3rd eccentric shaft (12) simultaneously, first eccentric shaft (4), second eccentric shaft (11) and the 3rd eccentric shaft (12) are equilateral triangle and distribute on internal tooth ring plate (10); The internal tooth that two internal tooth ring plates (10) go up to be provided with becomes with external tooth on the output shaft (2) that few tooth is poor, the leggy engagement, and the gear that drives simultaneously on the output shaft (2) is made circular movement, drive output shaft (2) rotation.
2. few tooth difference speed reducer according to claim 1, it is characterized in that: input gear (7) is set on the output shaft of power plant (5), middle gear (6) is set on first eccentric shaft (4), drive the middle gear (6) that is meshed by input gear (7) and rotate, power is inputed to first eccentric shaft (4).
3. few tooth difference speed reducer according to claim 1 and 2, it is characterized in that: the profile of internal tooth ring plate (10) is an equilateral triangle, and the angle is a circular arc, and center and center of gravity all overlap with the top circle center of internal tooth ring plate (10) internal tooth; Two internal tooth ring plates (10) profile unanimity is equal in weight.
4. one kind comprises the described structure of lacking the electric flat carriage of tooth difference speed reducer of claim 1, it is characterized in that: described few tooth difference speed reducer (25) is arranged on electric flat carriage stand (21) bottom surface, and reduction case (8) is all stretched out at output shaft (2) two ends of described few tooth difference speed reducer (25); The two ends of output shaft (2) are connected with electric flat carriage adhesion wheel axle (23) by two coupling (24) respectively; Two electric flat carriage adhesion wheel assemblings (22) are arranged on the left and right both sides of electric flat carriage stand (21) bottom surface, and two electric flat carriage adhesion wheel axles (23) are installed in respectively in two adhesion wheel assemblings (22).
5. the structure of electric flat carriage according to claim 4, it is characterized in that: the two ends of output shaft (2) are provided with keyway.
6. the structure of electric flat carriage according to claim 4 is characterized in that: described few tooth difference speed reducer (25) is installed in the central position of two electric flat carriage adhesion wheel axles (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202129574U CN202091432U (en) | 2011-06-22 | 2011-06-22 | A speed reducer with small tooth difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202129574U CN202091432U (en) | 2011-06-22 | 2011-06-22 | A speed reducer with small tooth difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091432U true CN202091432U (en) | 2011-12-28 |
Family
ID=45366501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202129574U Expired - Fee Related CN202091432U (en) | 2011-06-22 | 2011-06-22 | A speed reducer with small tooth difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230517A (en) * | 2011-06-22 | 2011-11-02 | 重庆钢铁(集团)有限责任公司 | Speed reducer with small tooth number difference and structure thereof for electric flat carriage |
| CN103307227A (en) * | 2013-05-20 | 2013-09-18 | 中国矿业大学 | Low-speed heavy-load three-ring speed reducer capable of adjusting speed |
-
2011
- 2011-06-22 CN CN2011202129574U patent/CN202091432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230517A (en) * | 2011-06-22 | 2011-11-02 | 重庆钢铁(集团)有限责任公司 | Speed reducer with small tooth number difference and structure thereof for electric flat carriage |
| CN103307227A (en) * | 2013-05-20 | 2013-09-18 | 中国矿业大学 | Low-speed heavy-load three-ring speed reducer capable of adjusting speed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202082348U (en) | Yaw speed reducer | |
| TW201139892A (en) | Planetary gear decelerator | |
| CN201651184U (en) | Two-speed transmission mechanism for small mobile robot | |
| CN202484212U (en) | Novel double oscillating tooth reducer | |
| CN201053475Y (en) | Three-crank planet cycloidal needle wheel reducer | |
| CN202176679U (en) | Crankshaft inside meshing gear speed reducer | |
| CN102606684B (en) | Multi-loop concentric circumferential drive reducing mechanism | |
| CN102080707A (en) | Two-end output speed reducing transmission device | |
| CN201747868U (en) | Double input power split differential planetary reducer | |
| CN201866168U (en) | Transmission mechanism for oil pump and water pump in engine | |
| CN201947112U (en) | Bipolar planetary speed reduction motor | |
| CN206111961U (en) | Poor planet gear of tridentate linkage double crank pinwheel few tooth of output cycloid | |
| CN203130944U (en) | Wide-range high-power continuously variable transmission | |
| CN201090682Y (en) | Internal three-cycle speed reducer | |
| CN202812006U (en) | Multi-loop concentric circumferential drive reducing mechanism | |
| CN202937772U (en) | Gear transmission structure of gear box speed reducer | |
| CN202484211U (en) | Planetary reducer capable of transmitting hydraulic motor power | |
| CN103335069B (en) | Sieve run-out tolerance speed reducer | |
| CN102230517A (en) | Speed reducer with small tooth number difference and structure thereof for electric flat carriage | |
| CN201851599U (en) | Two-stage ring gear reducer | |
| CN206972857U (en) | A kind of two grades of planetary gears gearboxes driving bridge system | |
| CN103115119A (en) | Wide-range high-power infinitely variable transmission | |
| CN202301817U (en) | Outer-swing multiple-crank-shaft less-tooth-difference accelerator/decelerator | |
| CN107461460A (en) | Modified reference circle subtractive speed variator | |
| CN201377545Y (en) | novel driving and swiveling reduction gear with two worms |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20170622 |