CN107366729B - Double-output-shaft speed reducer - Google Patents
Double-output-shaft speed reducer Download PDFInfo
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- CN107366729B CN107366729B CN201710766167.2A CN201710766167A CN107366729B CN 107366729 B CN107366729 B CN 107366729B CN 201710766167 A CN201710766167 A CN 201710766167A CN 107366729 B CN107366729 B CN 107366729B
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 120
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000009467 reduction Effects 0.000 claims description 28
- 238000004804 winding Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 5
- 244000144972 livestock Species 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/065—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with a plurality of driving or driven shafts
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Abstract
The utility model discloses a double-output-shaft speed reducer, which solves the technical problems of unbalanced driving force distribution and load bearing of a speed reducing mechanism in the prior art. The double-output-shaft speed reducer comprises a first speed reducing mechanism, a second speed reducing mechanism and a third speed reducing mechanism, wherein the first speed reducing mechanism is connected with a driving motor, the second speed reducing mechanism and the third speed reducing mechanism are symmetrically arranged in the same structure, the first speed reducing mechanism is connected with the second speed reducing mechanism and the third speed reducing mechanism through a middle shaft I, the second speed reducing mechanism and the third speed reducing mechanism are respectively connected with an output shaft O and synchronously drive the output shaft O, and the output shaft O is provided with two output ends; the intermediate shaft I is a hollow shaft, the output shaft O passes through the intermediate shaft I, and the output shaft O is coaxial with the intermediate shaft I. The utility model can balance driving force distribution, lighten the load of a speed reducing mechanism, reduce the strength requirement of transmission parts and reduce the size of the transmission parts.
Description
Technical Field
The utility model relates to a double-output shaft speed reducer which is matched with a driving motor and used for opening and closing windows and curtain nets on a greenhouse and a livestock and poultry house.
Background
Different environmental requirements are set up for illumination intensity, temperature and ventilation conditions by the greenhouse cultivation technology and the livestock cultivation technology, so that corresponding adjustable window and curtain net devices are generally arranged in agricultural facilities and livestock facilities to ensure control requirements for illumination intensity, temperature and ventilation conditions, and an optimal growth environment is provided for plants cultivated in a greenhouse and livestock cultivated in the greenhouse by opening and closing the window and the curtain net. In an adjustable window and screen apparatus, the opening and closing of the window and screen is typically accomplished by a motor driving a dual output shaft reducer. In the prior art, a motor is generally adopted as motive power, and the high rotation speed of the motor is reduced to the low rotation speed of an output shaft through a reduction mechanism, so that the opening and closing actions of a window and a curtain net can be realized by using the motor with smaller power.
In the prior art, an electric film rolling device is generally provided with a single output shaft, a film rolling shaft in a film rolling mechanism can only be driven from one end, and long film rolling shafts with the maximum length of 200 meters are needed in application occasions such as windowing, sun-shading net drawing, roller shutter drawing and the like in the animal husbandry and the planting industry, and have high rigidity requirements, otherwise, the film rolling shafts are easy to bend and deform, so that the manufacturing cost is high.
In the prior art, an electric film rolling device with double output shafts is also provided, for example, two ends of the output shaft arranged in the electric film rolling device with double output shafts (CN 201557431U) are respectively extended out through the box body and the box cover as output ends, the two ends of the output shaft are respectively fixedly connected with the film rolling shaft, the film rolling device can be arranged in the middle of the film rolling position of the greenhouse, and the length of the film rolling shaft at one side can be reduced.
However, the electric film rolling device is only provided with a group of planetary speed reducing mechanisms, the planetary speed reducing mechanisms drive the output shaft near the right side, and the defects that the driving force distribution is unbalanced, the speed reducing mechanisms load, the strength requirement of transmission parts is high, and the size design is large exist.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a double-output-shaft speed reducer, which belongs to a 3K-II type speed reducer, and two groups of speed reducing mechanisms are symmetrically arranged and synchronously drive output shafts, so that the defects in the prior art are overcome.
In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:
the utility model provides a double-output-shaft speed reducer, which comprises a first speed reducing mechanism, a second speed reducing mechanism and a third speed reducing mechanism, wherein the first speed reducing mechanism is connected with a driving motor, the second speed reducing mechanism and the third speed reducing mechanism are symmetrically arranged in the same structure, the first speed reducing mechanism is connected with the second speed reducing mechanism and the third speed reducing mechanism through an intermediate shaft I, the second speed reducing mechanism and the third speed reducing mechanism are respectively connected with an output shaft O and synchronously drive the output shaft O, and the output shaft O is provided with two output ends; the intermediate shaft I is a hollow shaft, the output shaft O passes through the intermediate shaft I, and the output shaft O is coaxial with the intermediate shaft I.
Preferably, one or two groups of first speed reducing mechanisms are arranged, and the first speed reducing mechanisms comprise bevel gear pairs, cylindrical gear pairs or worm and gear pairs; the second speed reducing mechanism and the third speed reducing mechanism comprise planetary speed reducing mechanisms.
Preferably, the bevel gear pair comprises a bevel gear S1 and a bevel gear S2 which are meshed for transmission, the bevel gear S1 is connected with an input shaft H, the input shaft H is connected with the driving motor, and the bevel gear S2 is connected with the intermediate shaft I.
Preferably, the cylindrical gear pair comprises a cylindrical gear S3 and a cylindrical gear S4 which are in meshed transmission, the cylindrical gear S3 is connected with an input shaft H, the input shaft H is connected with the driving motor, and the cylindrical gear S4 is connected with the intermediate shaft I.
Preferably, the worm wheel and worm pair comprises a worm W1 and a worm wheel W2 which are in meshed transmission, wherein the worm W1 is connected with an input shaft H, and the worm wheel W2 is connected with the intermediate shaft I.
Preferably, a sun gear a, a planet gear G, a planet gear F, a planet carrier C, an inner gear ring B and an inner gear ring E are arranged in the planetary reduction mechanism, the sun gear a is connected with the intermediate shaft I, the inner gear ring B is fixed, the planet gear G rotates around the sun gear a and is meshed with the sun gear a and the inner gear ring B, the planet gear G and the planet gear F are mounted on the same support shaft D, the support shaft D is mounted on the planet carrier C, the planet gear F is meshed with the inner gear ring E, and the inner gear ring E is connected with the output shaft O.
Preferably, a sun gear a, a planet gear G, a planet carrier C, an annular gear B and an annular gear E are arranged in the planetary reduction mechanism, the sun gear a is connected with the intermediate shaft I and fixed with the annular gear B, the planet gear G rotates around the sun gear a and is meshed with the sun gear a, and simultaneously is meshed with the annular gear B and the annular gear E, the planet gear G is mounted on a support shaft D, the support shaft D is mounted on the planet carrier C, and the annular gear E is connected with the output shaft O.
Preferably, transmission teeth are arranged at two ends of the intermediate shaft I to replace the sun gear A.
Preferably, the first speed reducing mechanism is provided with a group, and is positioned between the second speed reducing mechanism and the third speed reducing mechanism; or the first speed reducing mechanisms are arranged in two groups and are respectively positioned outside the second speed reducing mechanism and the third speed reducing mechanism, and the second speed reducing mechanism and the third speed reducing mechanism share one annular gear E.
Preferably, the output shaft O is a whole shaft or two coaxial half shafts; the intermediate shaft I is an integral shaft or two coaxial half shafts.
Preferably, the output shaft O is a left half shaft O2 and a right half shaft O1 which are coaxial, the left half shaft O2 passes through the intermediate shaft I to be connected with the right half shaft O1, and a bearing is arranged at the connection position.
Preferably, a sliding bearing is arranged between the intermediate shaft I and the output shaft O; two groups of bearings are arranged at two ends of the output shaft O.
Preferably, the input shaft H is parallel or perpendicular to the intermediate shaft I and the output shaft O, and the input shaft H is integrally formed with a rotating shaft of the driving motor.
Preferably, the planetary gears G and F are provided with three or more.
The double-output shaft speed reducer adopting the structure has the following advantages:
the utility model symmetrically arranges two groups of speed reducing mechanisms, and the two groups of speed reducing mechanisms synchronously drive the output shafts, thereby balancing the driving force distribution, reducing the load of the speed reducing mechanisms, reducing the strength requirement of transmission parts and reducing the size of the transmission parts.
The speed reducer has double output shafts, can be arranged in the middle of the film winding shaft, and can drive the film winding shafts on two sides from the middle, and the length of the film winding shaft can be shortened, so that the rigidity requirement of the film winding shaft can be reduced, the manufacturing cost is reduced, the weight of the film winding shaft is reduced, and the effective load is improved.
The utility model is suitable for mass production by adopting the mould, reduces the manufacturing cost, and is suitable for mass popularization and application in animal husbandry and agriculture.
Drawings
FIG. 1 is a schematic view of a double output shaft reduction gear according to embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of a double output shaft reduction gear according to embodiment 2 of the present utility model;
FIG. 3 is a schematic view of a double output shaft reduction gear according to embodiment 3 of the present utility model;
FIG. 4 is a schematic view of a double output shaft reduction gear according to embodiment 4 of the present utility model;
FIG. 5 is a schematic view of a double output shaft reduction gear according to embodiment 5 of the present utility model;
FIG. 6 is a schematic view of a double output shaft reduction gear according to embodiment 6 of the present utility model;
FIG. 7 is a cross-sectional view of a dual output shaft speed reducer of embodiment 7 of the present utility model;
fig. 8 is a schematic diagram of a double output shaft speed reducer according to embodiment 8 of the present utility model.
In the figure: A. a sun gear; B. an inner gear ring; C. a planet carrier; D. a support shaft; E. an inner gear ring; E1. a right ring gear; E2. a left ring gear; F. a planet wheel; G. a planet wheel; H. an input shaft; I. an intermediate shaft; I1. a drive tooth; I2. a drive tooth; I3. a right half shaft; I4. a left half shaft; m, driving a motor; s1, bevel gears; s2, bevel gears; s3, a cylindrical gear; s4, a cylindrical gear; w1, a worm; w2, worm wheel; o, an output shaft; o1. right half shaft; o2, a left half shaft; z1. first bearing; z2. second bearing.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an embodiment 1 of the present utility model is shown, in which a dual-output shaft speed reducer is provided, which belongs to a 3K-ii type speed reducer, and includes a first speed reducing mechanism, the first speed reducing mechanism is connected with a driving motor (not shown in the figure), and further includes a second speed reducing mechanism and a third speed reducing mechanism, the structures of the second speed reducing mechanism and the third speed reducing mechanism are symmetrically arranged, the first speed reducing mechanism is connected with the second speed reducing mechanism and the third speed reducing mechanism through an intermediate shaft I, the second speed reducing mechanism and the third speed reducing mechanism are respectively and independently connected with an output shaft O and synchronously drive the output shaft O, and the output shaft O has two output ends; the intermediate shaft I is a hollow shaft, the output shaft O passes through the intermediate shaft I, and the output shaft O is coaxial with the intermediate shaft I.
The intermediate shaft I is a hollow shaft, the output shaft O passes through the intermediate shaft I, and the output shaft O is coaxial with the intermediate shaft I. The design can make the speed reducer structure more compact, reduces space occupation.
The output shaft O is externally connected with a film winding shaft (not shown in the figure) in the film winding mechanism, the film winding shafts on two sides can be driven from the middle, and the length of the film winding shaft can be reduced to half of the original length, so that the rigidity requirement of the film winding shaft can be reduced, the manufacturing cost is reduced, the weight of the film winding shaft is reduced, and the effective load is improved.
In this embodiment, the first speed reducing mechanism includes a bevel gear pair, and the second speed reducing mechanism and the third speed reducing mechanism include planetary speed reducing mechanisms.
As shown in fig. 1, the bevel gear pair comprises a bevel gear S1 and a bevel gear S2 which are meshed for transmission, wherein the bevel gear S1 is connected with an input shaft H, and the bevel gear S1 and the input shaft H can be connected through keys; the input shaft H is connected with a driving motor, and the input shaft H and the driving motor can be connected through a coupler; bevel gear S2 is connected to intermediate shaft I, which can be keyed.
The planetary reduction mechanism is provided with a sun gear A, a planet gear G, a planet gear F, a planet carrier C, an annular gear B and an annular gear E.
The sun gear A is connected with the intermediate shaft I, the annular gear B is fixed, the planet wheel G rotates around the sun gear A and is meshed with the sun gear A and the annular gear B, the planet wheel G and the planet wheel F are mounted on the same support shaft D, the support shaft D is mounted on the planet carrier C, the planet wheel F is meshed with the annular gear E, and the annular gear E is connected with the output shaft O. Both of these components may be connected by a key.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a bevel gear S1, a bevel gear S2, an intermediate shaft I, a sun gear A, a planet gear G, a support shaft D, a planet gear F, an inner gear ring E and an output shaft O in sequence.
In this embodiment, a sliding bearing is provided between the intermediate shaft I and the output shaft O, and two sets of planetary mechanisms may support the intermediate shaft I. Bearings are arranged at two ends of the output shaft O.
The input shaft H is perpendicular to the intermediate shaft I and the output shaft O, and interference between the driving motor and the film winding shafts on two sides can be avoided through the design.
The input shaft H and the rotating shaft of the driving motor can be integrally manufactured, so that the design can simplify the connecting structure between the input shaft H and the driving motor.
In this embodiment, the planetary gears G, F may be provided with three or more.
The dual output shaft speed reducer in the embodiment has a self-locking function, and the self-locking can be realized because the speed reduction ratio is large when the moment is output, the speed increase ratio is large when the moment is reversely input, and the gravity of the film rolling mechanism, the film or the curtain is insufficient to drive the speed reducer to rotate reversely.
Because the two groups of speed reducing mechanisms synchronously drive the output shaft O, the driving force distribution can be balanced, the load of the speed reducing mechanisms is reduced, the strength requirements of transmission parts in the second speed reducing mechanism and the third speed reducing mechanism can be reduced, and the size of the transmission parts can be smaller than that of an electric film winder in the prior art, wherein only one group of planetary speed reducing mechanisms is arranged.
Example 2
As shown in fig. 2, an embodiment 2 of the present utility model is modified on the basis of embodiment 1, and the difference from embodiment 1 is that the output shaft O is two coaxial left and right half shafts O2 and O1.
Bearings are required to be arranged between the left half shaft O2 and the intermediate shaft I and between the right half shaft O1 and the intermediate shaft I, and sliding bearings can be adopted here.
Although the output shaft O is divided into two half shafts, the second reduction mechanism and the third reduction mechanism drive the two half shafts synchronously due to the fact that the two half shafts are driven by the same power source.
The length of the output shaft can be shortened by arranging two half shafts, the strength requirement of the output shaft is reduced, and the size of the output shaft is reduced.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a bevel gear S1, a bevel gear S2, an intermediate shaft I, a sun gear A, a planet gear G, a support shaft D, a planet gear F, an inner gear ring E and an output shaft O (a right half shaft O1 and a left half shaft O2) in sequence.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 1, and will not be described in detail here.
Example 3
As shown in fig. 3, which is an embodiment 3 of the present utility model, the present embodiment is modified on the basis of embodiment 1, and is different from embodiment 1 in that a sun gear a, a planet gear G, a planet carrier C, a ring gear B, and a ring gear E are provided in a planetary reduction mechanism. Namely, the planet wheel is only provided with one planet wheel, the axial length is wider, and the planet wheel can be meshed with the annular gear B and the annular gear E for transmission.
As shown in fig. 3, a sun gear a is connected with an intermediate shaft I, an annular gear B is fixed, a planet gear G rotates around the sun gear a and is meshed with the sun gear a, and simultaneously is meshed with the annular gear B and an annular gear E, the planet gear G is mounted on a support shaft D, the support shaft D is mounted on a planet carrier C, and the annular gear E is connected with an output shaft O.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a bevel gear S1, a bevel gear S2, an intermediate shaft I, a sun gear A, a planet gear G, an annular gear E and an output shaft O in sequence.
In the embodiment, one wider planet wheel is adopted to replace two narrower coaxial planet wheels, so that the transmission structure design can be simplified.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 1, and will not be described in detail here.
Example 4
As shown in fig. 4, an embodiment 4 of the present utility model is modified from the embodiment 3, and the difference from the embodiment 3 is that the output shaft O is two coaxial left and right half shafts O2 and O1.
Bearings are required to be arranged between the left half shaft O2 and the intermediate shaft I and between the right half shaft O1 and the intermediate shaft I, and sliding bearings can be adopted here.
Although the output shaft O is divided into two half shafts, the second reduction mechanism and the third reduction mechanism drive the two half shafts synchronously due to the fact that the two half shafts are driven by the same power source.
The length of the output shaft can be shortened by arranging two half shafts, the strength requirement of the output shaft is reduced, and the size of the output shaft is reduced.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a bevel gear S1, a bevel gear S2, an intermediate shaft I, a sun gear A, a planet gear G, an inner gear ring E and an output shaft O (a right half shaft O1 and a left half shaft O2) in sequence.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 3, and will not be described in detail here.
Example 5
As shown in fig. 5, which is an embodiment 5 of the present utility model, this embodiment is modified on the basis of embodiment 1, and is different from embodiment 1 in that the first reduction mechanism includes a worm wheel and worm screw pair.
As shown in fig. 5, the worm wheel and worm pair comprises a worm W1 and a worm wheel W2 which are meshed and driven, wherein the worm W1 is connected with an input shaft H, and the worm wheel W2 is connected with an intermediate shaft I.
The worm W1 may be integrally formed with the input shaft H, and spiral teeth may be machined on the input shaft H.
Both turbine W2 and intermediate shaft I may be keyed.
The torque transmission path of the driving motor in this embodiment is: the transmission device sequentially passes through an input shaft H, a worm W1, a turbine W2, an intermediate shaft I, a sun gear A, a planet gear G, a support shaft D, a planet gear F, an inner gear ring E and an output shaft O to be transmitted outwards.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 1, and will not be described in detail here.
Example 6
As shown in fig. 6, an embodiment 6 of the present utility model is modified from embodiment 5, and the difference from embodiment 5 is that the output shaft O is two coaxial left and right half shafts O2 and O1.
Bearings are required to be arranged between the left half shaft O2 and the intermediate shaft I and between the right half shaft O1 and the intermediate shaft I, and sliding bearings can be adopted here.
Although the output shaft O is divided into two half shafts, the second reduction mechanism and the third reduction mechanism drive the two half shafts synchronously due to the fact that the two half shafts are driven by the same power source.
The length of the output shaft can be shortened by arranging two half shafts, the strength requirement of the output shaft is reduced, and the size of the output shaft is reduced.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a worm W1, a turbine W2, an intermediate shaft I, a sun gear A, a planet gear G, a support shaft D, a planet gear F, an inner gear ring E and an output shaft O (a right half shaft O1 and a left half shaft O2) in sequence.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 5, and will not be described in detail here.
Example 7
As shown in fig. 7, an embodiment 7 of the present utility model is modified on the basis of embodiment 1, and unlike embodiment 1, transmission teeth are provided at both ends of the intermediate shaft I instead of the sun gear a, so that the design can simplify the transmission structure.
In this embodiment, the output shaft O is two coaxial left half shafts O2 and right half shafts O1, the left half shaft O2 passes through the intermediate shaft I to be connected with the right half shaft O1, a bearing is provided at the connection position, a second bearing Z2 in fig. 7 is provided at the left end of the right half shaft O1, and a groove is provided to form a bearing seat.
A sliding bearing is arranged between the intermediate shaft I and the output shaft O.
Two sets of bearings are arranged at both ends of the output shaft O, and the first bearing Z1 in FIG. 7 can be arranged on the box body of the speed reducer.
In this embodiment, a wider planet is also used to replace two narrower coaxial planets, so that the transmission structure design can be simplified.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a bevel gear S1, a bevel gear S2, an intermediate shaft I, a planet gear G, an annular gear E and an output shaft O (a right half shaft O1 and a left half shaft O2) in sequence.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 1, and will not be described in detail here.
Example 8
As shown in fig. 8, an embodiment 8 of the present utility model is an improvement of the embodiment 3, and is different from the embodiment 3 in that in the present utility model, the first speed reducing mechanism is provided with two groups, which are respectively located outside the second speed reducing mechanism and the third speed reducing mechanism, and the second speed reducing mechanism and the third speed reducing mechanism share one ring gear E.
As shown in fig. 8, the inner gear ring E is located between the second reduction mechanism and the third reduction mechanism and connected with the output shaft O, and is formed by combining a right inner gear ring E1 and a left inner gear ring E2, and both sides have inner ring driving teeth.
The first speed reducing mechanism comprises a cylindrical gear pair, the cylindrical gear pair comprises a cylindrical gear S3 and a cylindrical gear S4 which are in meshed transmission, the cylindrical gear S3 is connected with an input shaft H, the input shaft H is connected with a driving motor, and the cylindrical gear S4 is connected with a middle shaft I.
In this embodiment, the input shaft H is parallel to the output shaft O and the intermediate shaft I.
Since the ring gear E is located between the second reduction mechanism and the third reduction mechanism, the first reduction mechanism is provided in two groups and is provided outside the second reduction mechanism and the third reduction mechanism, respectively.
Because the annular gear E is connected with the output shaft O, the intermediate shaft I is divided into two half shafts, namely a right half shaft I3 and a left half shaft I4.
Bearings are required to be arranged between the left half shaft I4 and the output shaft O and between the right half shaft I3 and the output shaft O, and sliding bearings can be adopted here.
Although the intermediate shaft I is divided into two half shafts, the second speed reducing mechanism and the third speed reducing mechanism synchronously drive the two half shafts due to the fact that the two half shafts are driven by the same power source.
The two half shafts are arranged, so that the length of the intermediate shaft can be shortened, the strength requirement of the intermediate shaft is reduced, and the size of the intermediate shaft is reduced.
The torque transmission path of the driving motor in this embodiment is: the transmission is transmitted outwards through an input shaft H, a cylindrical gear S3, a cylindrical gear S4, an intermediate shaft I (a right half shaft I3 and a left half shaft I4), a sun gear A, a planet wheel G, an inner gear ring E and an output shaft O in sequence.
Other structures of the double output shaft speed reducer in this embodiment are the same as those in embodiment 3, and will not be described in detail here.
The foregoing is merely a specific embodiment of the utility model and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the utility model more fully, and that the scope of the utility model is defined by the appended claims.
Claims (1)
1. The double-output-shaft speed reducer comprises a first speed reducing mechanism, wherein the first speed reducing mechanism is connected with a driving motor, and is characterized by further comprising a second speed reducing mechanism and a third speed reducing mechanism, the structures of the second speed reducing mechanism and the third speed reducing mechanism are symmetrically arranged, the first speed reducing mechanism is connected with the second speed reducing mechanism and the third speed reducing mechanism through an intermediate shaft I, the second speed reducing mechanism and the third speed reducing mechanism are respectively connected with an output shaft O and synchronously drive the output shaft O, and the output shaft O is provided with two output ends; the intermediate shaft I is a hollow shaft, the output shaft O passes through the intermediate shaft I, and the output shaft O is coaxial with the intermediate shaft I, so that the space occupied by the double-output-shaft speed reducer can be reduced;
the two sides of the output shaft O are respectively connected with a film winding shaft externally, and the film winding shafts on the two sides can be driven from the middle;
the first speed reducing mechanism is provided with one group or two groups, and comprises a bevel gear pair, a cylindrical gear pair or a turbine worm pair; the second speed reducing mechanism and the third speed reducing mechanism comprise planetary speed reducing mechanisms;
the bevel gear pair comprises a bevel gear S1 and a bevel gear S2 which are in meshed transmission, the bevel gear S1 is connected with an input shaft H, the input shaft H is connected with the driving motor, and the bevel gear S2 is connected with the intermediate shaft I; the cylindrical gear pair comprises a cylindrical gear S3 and a cylindrical gear S4 which are in meshed transmission, the cylindrical gear S3 is connected with an input shaft H, the input shaft H is connected with the driving motor, and the cylindrical gear S4 is connected with the intermediate shaft I;
the worm wheel and worm pair comprises a worm W1 and a worm wheel W2 which are in meshed transmission, the worm W1 is connected with an input shaft H, and the worm wheel W2 is connected with an intermediate shaft I;
the planetary reduction mechanism is provided with a sun gear A, a planet gear G, a planet gear F, a planet carrier C, an annular gear B and an annular gear E, wherein the sun gear A is connected with a middle shaft I, the annular gear B is fixed, the planet gear G rotates around the sun gear A and is meshed with the sun gear A and the annular gear B, the planet gear G and the planet gear F are arranged on the same supporting shaft D, the supporting shaft D is arranged on the planet carrier C, the planet gear F is meshed with the annular gear E, and the annular gear E is connected with an output shaft O; or alternatively, the first and second heat exchangers may be,
the planetary reduction mechanism is provided with a sun gear A, a planet gear G, a planet carrier C, an annular gear B and an annular gear E, wherein the sun gear A is connected with a middle shaft I and is fixed with the annular gear B, the planet gear G rotates around the sun gear A and is meshed with the sun gear A, and is meshed with the annular gear B and the annular gear E, the planet gear G is mounted on a supporting shaft D, the supporting shaft D is mounted on the planet carrier C, and the annular gear E is connected with an output shaft O;
the two ends of the intermediate shaft I are provided with transmission teeth to replace the sun gear A;
the first speed reducing mechanism is provided with a group and is positioned between the second speed reducing mechanism and the third speed reducing mechanism; or the first speed reducing mechanisms are arranged in two groups and are respectively positioned outside the second speed reducing mechanism and the third speed reducing mechanism, and the second speed reducing mechanism and the third speed reducing mechanism share one annular gear E;
the output shaft O is a whole shaft or two coaxial half shafts; the intermediate shaft I is a whole shaft or two coaxial half shafts;
the output shaft O is a left half shaft O2 and a right half shaft O1 which are coaxial, the left half shaft O2 passes through the intermediate shaft I to be connected with the right half shaft O1, and a bearing is arranged at the connection position;
the input shaft H is parallel or perpendicular to the intermediate shaft I and the output shaft O, and the input shaft H and the rotating shaft of the driving motor are integrally manufactured;
when the input shaft H is perpendicular to the intermediate shaft I and the output shaft O, interference between the driving motor and the film winding shafts on both sides can be avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766167.2A CN107366729B (en) | 2017-08-30 | 2017-08-30 | Double-output-shaft speed reducer |
Applications Claiming Priority (1)
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| CN107366729B true CN107366729B (en) | 2023-09-19 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366727A (en) * | 1978-10-02 | 1983-01-04 | Vena Mekan Aktiebolag | Planetary-type of gear and procedure and apparatus for its production |
| JP2007113701A (en) * | 2005-10-20 | 2007-05-10 | Japan Labour Health & Welfare Organization | Reduction gear for joint |
| CN2914470Y (en) * | 2006-05-12 | 2007-06-20 | 陈政 | Double output electric machine structure |
| CN201557431U (en) * | 2009-09-15 | 2010-08-25 | 北京东都兴业园艺设施有限公司 | Double-outlet-shaft electric film reeler |
| JP2010216535A (en) * | 2009-03-16 | 2010-09-30 | Ricoh Co Ltd | Planetary gear type reduction gear and image forming device |
| CN202309370U (en) * | 2011-11-08 | 2012-07-04 | 东阳市东政电机有限公司 | Dual-output shaft motor |
| CN103120104A (en) * | 2012-12-12 | 2013-05-29 | 邱惠民 | Biaxial rolling shutter machine installed with small teeth difference reducer and used for greenhouse |
| CN207470725U (en) * | 2017-08-30 | 2018-06-08 | 北京***汇技术有限公司 | A kind of double output shaft decelerator |
-
2017
- 2017-08-30 CN CN201710766167.2A patent/CN107366729B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366727A (en) * | 1978-10-02 | 1983-01-04 | Vena Mekan Aktiebolag | Planetary-type of gear and procedure and apparatus for its production |
| JP2007113701A (en) * | 2005-10-20 | 2007-05-10 | Japan Labour Health & Welfare Organization | Reduction gear for joint |
| CN2914470Y (en) * | 2006-05-12 | 2007-06-20 | 陈政 | Double output electric machine structure |
| JP2010216535A (en) * | 2009-03-16 | 2010-09-30 | Ricoh Co Ltd | Planetary gear type reduction gear and image forming device |
| CN201557431U (en) * | 2009-09-15 | 2010-08-25 | 北京东都兴业园艺设施有限公司 | Double-outlet-shaft electric film reeler |
| CN202309370U (en) * | 2011-11-08 | 2012-07-04 | 东阳市东政电机有限公司 | Dual-output shaft motor |
| CN103120104A (en) * | 2012-12-12 | 2013-05-29 | 邱惠民 | Biaxial rolling shutter machine installed with small teeth difference reducer and used for greenhouse |
| CN207470725U (en) * | 2017-08-30 | 2018-06-08 | 北京***汇技术有限公司 | A kind of double output shaft decelerator |
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| CN107366729A (en) | 2017-11-21 |
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