CN211117384U - Speed reduction clutch - Google Patents
Speed reduction clutch Download PDFInfo
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- CN211117384U CN211117384U CN201921525808.6U CN201921525808U CN211117384U CN 211117384 U CN211117384 U CN 211117384U CN 201921525808 U CN201921525808 U CN 201921525808U CN 211117384 U CN211117384 U CN 211117384U
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- gear
- shaft
- input shaft
- output shaft
- support frame
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Abstract
The application discloses a speed reduction clutch, which comprises an input shaft, a shell, a plurality of duplicate gears and an output shaft, wherein the input shaft and the output shaft are coaxially arranged, and are all rotatably arranged on the shell, a plurality of duplicate gears are arranged in the shell and are arranged along the circumferential direction of the input shaft and the output shaft, a first gear is arranged at the end part of the input shaft close to the output shaft, a second gear is arranged at the end part of the output shaft close to the input shaft, the dual gear comprises a third gear and a fourth gear which are coaxially arranged, the first gear is meshed with the third gear, the number of teeth of the third gear is larger than that of the teeth of the first gear, so as to form a first-stage speed reducing structure, the second gear is meshed with the fourth gear, and the tooth number of the fourth gear is greater than that of the second gear, so as to form a second-stage speed reducing structure. The utility model provides a speed reduction clutch, reasonable in design, simple structure, it is with low costs, assembly process nature is good.
Description
Technical Field
The utility model relates to a washing machine field especially relates to a speed reduction clutch.
Background
The speed reducing clutch is also called as speed reducer, and is an important part of the transmission system of the pulsator washing machine, and has the functions of reducing the rotating speed of the motor, increasing the transmission torque and driving the pulsator to work.
At present, the decelerating part of the decelerating clutch of the existing washing machine is generally a planetary gear reducer, which has its own advantages, such as: smooth transmission, small volume and the like. However, because the transmission ratio required by the speed reduction clutch is not very high relatively, the design of planetary gear transmission is adopted, and the functionality is relatively redundant; and the planetary transmission system is also provided with a sun wheel and a brake wheel, so that the cost is increased undoubtedly, and the planetary transmission system is complex in assembly process and poor in practicability.
With the development of the technology, some cases of improving the planetary gear transmission also appear at present, for example, in the patent with publication number CN107385788A, aiming at the problem of low load capacity of a gear train in the conventional planetary gear transmission, the conventional uniform arrangement of the planet wheels is changed into the non-uniform arrangement, and the scheme can improve the load capacity of the gear train, but from the assembly point of view, the assembly process is more complicated than that of the conventional planetary gear transmission, and the most important point is that, under the condition of ensuring the assembly reasonability, the scheme needs to be assembled to realize the revolution track of the planet wheels, and how to ensure that the planetary gear train does not have the self-locking and the problem that the revolution track of the planet wheels is in the same revolution circle in the motion process is an innovative difficulty. For example, in the patent with publication number CN101358416B, the conventional planetary gear transmission is replaced by the transmission of the planetary gear with small teeth difference (harmonic gear), but according to the application of the planetary gear with small teeth difference, the planetary gear with small teeth difference has the problems of low bearing capacity and low transmission efficiency, and is generally only suitable for the occasions of light load and short time work.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, provide a speed reduction clutch that structural design is reasonable, simple structure, with low costs, assembly manufacturability are good.
The utility model adopts the following technical scheme: the utility model provides a speed reduction clutch, which comprises an input shaft, a shell, a plurality of duplicate gears and an output shaft, wherein the input shaft and the output shaft are coaxially arranged, and are all rotatably arranged on the shell, a plurality of duplicate gears are arranged in the shell and are arranged along the circumferential direction of the input shaft and the output shaft, a first gear is arranged at the end part of the input shaft close to the output shaft, a second gear is arranged at the end part of the output shaft close to the input shaft, the dual gear comprises a third gear and a fourth gear which are coaxially arranged, the first gear is meshed with the third gear, the number of teeth of the third gear is larger than that of the teeth of the first gear, so as to form a first-stage speed reducing structure, the second gear is meshed with the fourth gear, and the tooth number of the fourth gear is greater than that of the second gear, so as to form a second-stage speed reducing structure.
In an embodiment of the present invention, the casing includes a first support frame, a second support frame and a plurality of support legs, the first support frame with the second support frame sets up relatively, the input shaft with the output shaft rotationally locates respectively the first support frame with on the second support frame, the first support frame with still be equipped with a plurality of support legs between the second support frame, a plurality of support legs are followed the input shaft with the circumference of output shaft evenly sets up.
In an embodiment of the present invention, the dual gear further includes a mandrel, the mandrel is sleeved in the third gear and the fourth gear, two ends of the mandrel are respectively connected to the first support frame and the second support frame, and the third gear and the fourth gear can wind the mandrel rotates.
In an embodiment of the present invention, the dual gear further includes a mandrel, the mandrel is sleeved in the third gear and the fourth gear, and is integrated with the third gear and the fourth gear, two ends of the mandrel are respectively movably connected to the first support frame and the second support frame.
In an embodiment of the present invention, the first support frame or the second support frame and the joint of the mandrel are provided with a spacing post.
In an embodiment of the present invention, the input shaft, the dual gear and the output shaft form a reduction transmission chain, and the transmission ratio of the reduction transmission chain is 4-5.
In an embodiment of the present invention, the number of teeth of the third gear is 2-2.3 times that of the first gear, and the number of teeth of the second gear is 2-2.3 times that of the fourth gear; the number of teeth of the third gear is larger than that of the fourth gear.
In an embodiment of the present invention, the plurality of duplicate gears are uniformly arranged along the circumferential direction of the input shaft and the output shaft; the number of the duplicate gears is 2-4.
In an embodiment of the present invention, the reduction clutch further includes an input shaft sleeve, the input shaft sleeve is sleeved in the input shaft sleeve, and the first support frame is fixedly connected to the input shaft sleeve; and a bearing is arranged between the input shaft and the input shaft sleeve and is in interference fit with the input shaft sleeve.
In an embodiment of the present invention, the speed reduction clutch further includes a dewatering shaft, the dewatering shaft is a hollow structure, the output shaft is sleeved in the dewatering shaft, and the second support frame is connected with the dewatering shaft in an interference fit manner; the second support frame is connected with the dehydration shaft in an interference fit manner by adopting a spline; and a bearing is arranged between the output shaft and the dehydration shaft, and the bearing is in interference fit with the dehydration shaft.
The utility model has the advantages that: the utility model provides a speed reduction clutch, through the duplicate gear linkage and speed reduction between input shaft and the output shaft, the last first gear of input shaft meshes with duplicate gear's third gear mutually, form one-level reduction structure, the last second gear of output shaft meshes with duplicate gear's fourth gear mutually, form second grade reduction structure, through two-stage reduction structure, can satisfy the drive ratio requirement of speed reduction clutch, it is effectual to slow down, compare in original planetary gear train transmission and the poor planetary gear transmission of few teeth, moreover, the steam generator is simple in structure, easy assembly, and can reduce cost.
Drawings
Fig. 1 is a schematic structural view of a reduction clutch according to the present invention;
FIG. 2 is a cross-sectional view of the reduction clutch of the present invention;
FIG. 3 is a diagram showing the relationship between the input shaft, the duplicate gear and the output shaft;
FIG. 4 is an assembly view of the input shaft portion of the present invention;
fig. 5 is an assembly view of the output shaft portion of the present invention.
The figures are numbered: 1. an input shaft; 2. a housing; 3. a duplicate gear; 4. an output shaft; 5. a limiting column; 6. an input shaft sleeve; 7. a bearing; 8. a dewatering shaft; 11. a first gear; 21. a first support frame; 22. a second support frame; 23. supporting legs; 31. a third gear; 32. a fourth gear; 33. a mandrel; 41. a second gear.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.
Referring to fig. 1-5, the present invention provides a speed reduction clutch, including an input shaft 1, a housing 2, a plurality of duplicate gears 3 and an output shaft 4, wherein the input shaft 1 and the output shaft 4 are coaxially disposed and both rotatably disposed on the housing 2, the plurality of duplicate gears 3 are disposed in the housing 2 and circumferentially disposed along the input shaft 1 and the output shaft 4, a first gear 11 is disposed at an end of the input shaft 1 close to the output shaft 4, a second gear 41 is disposed at an end of the output shaft 4 close to the input shaft 1, the duplicate gears 3 include a third gear 31 and a fourth gear 32 coaxially disposed, the first gear 11 is engaged with the third gear 31, and the number of teeth of the third gear 31 is greater than that of the first gear 11 to form a first-level speed reduction structure, the second gear 41 is engaged with the fourth gear 32, the number of teeth of the fourth gear 32 is greater than that of the second gear 41, to form a two-stage deceleration structure. The input shaft 1 and the output shaft 4 are linked and decelerated through the duplicate gear 3, the first gear 11 on the input shaft 1 is meshed with the third gear 31 of the duplicate gear 3 to form a first-stage deceleration structure, the second gear 41 on the output shaft 4 is meshed with the fourth gear 32 of the duplicate gear 3 to form a second-stage deceleration structure, the transmission ratio requirement of the deceleration clutch can be met through the two-stage deceleration structure, the deceleration effect is good, compared with the original planetary gear train transmission and the small-tooth-difference planetary gear transmission, the structure is simple, the assembly is easy, and the cost can be reduced.
Preferably, the first gear 11, the second gear 41, the third gear 31 and the fourth gear 32 are all in involute tooth form, so that the transmission ratio of transmission among the gears can be ensured to be fixed, the structure is simple, and the manufacturing cost is low. The input shaft 1 and the first gear 11 and the output shaft 4 and the second gear 41 can be of an integrated structure, namely a gear shaft, and the structure is simple and the connection is reliable. But not limited to this, also can split type structure between input shaft 1 and the first gear 11, between output shaft 4 and the second gear 41, it is fixed to adopt spline interference fit, and the assembly is simple, connects reliably, the utility model discloses do not limit to this.
The casing 2 includes first support frame 21, second support frame 22 and a plurality of supporting legs 23, first support frame 21 and the relative setting of second support frame 22, input shaft 1 and output shaft 4 rotationally locate respectively on first support frame 21 and second support frame 22, still be equipped with a plurality of supporting legs 23 between first support frame 21 and the second support frame 22, with the relative motion between restriction first support frame 21 and the second support frame 22, a plurality of supporting legs 23 evenly set up along input shaft 1 and output shaft 4's circumference. But not limited to this, the whole of casing 2 also can be the structure of integral type, simple structure, and the utility model discloses do not limit this.
Be clearance fit between input shaft 1 and the first support frame 21 and between output shaft 4 and the second support frame 22, input shaft 1 can take place to wind axial rotation for first support frame 21, output shaft 4 can take place to wind axial rotation for second support frame 22, through the rotation of input shaft 1, drive first gear 11 and rotate, and then the rotation of the third gear 31 of drive and first gear 11 meshing, form one-level reduction structure, because third gear 31 and fourth gear 32 are interconnect's structure, and then drive the rotation of fourth gear 32, and then the rotation of the second gear 41 of drive and fourth gear 32 meshing, form second grade reduction structure.
One end of the supporting leg 23 is injection molded with the second supporting frame 22, and the other end is connected with the first supporting frame 21 in an interference fit manner. In one embodiment, the number of duplicate gears 3 and supporting legs 23 is two, and be relative setting between two duplicate gears 3 and between two supporting legs 23, and duplicate gears 3 and supporting legs 23 set up in a staggered way for the holistic structure of speed reduction clutch is more small and exquisite.
The dual gear 3 further comprises a spindle 33, and the spindle 33 is sleeved in the third gear 31 and the fourth gear 32. In one embodiment, two ends of the spindle 33 are respectively fixedly connected with the first support frame 21 and the second support frame 22, and the third gear 31 and the fourth gear 32 can rotate around the spindle 33; the first support frame 21 and the second support frame 22 are fixedly connected with the mandrel 33 through interference fit, that is, the third gear 31 and the fourth gear 32 on the duplicate gear 3 rotate around the mandrel 33, so as to realize transmission with the first gear 11 and the second gear 41. In another embodiment, the mandrel 33 is sleeved in the third gear 31 and the fourth gear 32 and is integrated with the third gear 31 and the fourth gear 32, and two ends of the mandrel 33 are movably connected with the first support frame 21 and the second support frame 22 respectively; the first support frame 21 and the second support frame 22 are movably connected with the spindle 33 by clearance fit, that is, when the gears are driven, the whole rotation of the duplicate gear 3 is realized by the rotation of the spindle 33.
The connection part of the first support frame 21 or the second support frame 22 and the mandrel 33 is provided with a limiting column 5, the arrangement of the limiting column 5 can limit the axial movement of the duplicate gear 3, and the connection structure of the mandrel 33 and the first support frame 21 or the second support frame 22 can be enhanced through the limiting column 5. In an embodiment, the first support frame 21 is provided with a limiting column 5, the limiting column 5 and the first support frame 21 are of an integrated structure, the limiting column 5 and the second support frame 22 opposite to the limiting column 5 are provided with grooves for mounting the mandrel 33, and two ends of the mandrel 33 are fixed with the grooves on the limiting column 5 and the grooves on the second support frame 22 in an interference fit manner respectively.
The input shaft 1, the duplicate gear 3 and the output shaft 4 form a speed reduction transmission chain, the transmission ratio of the speed reduction transmission chain is 4-5, the design is reasonable, and the work is reliable.
The number of teeth of the third gear 31 is greater than that of the fourth gear 32; the number of teeth of the third gear 31 is 2-2.3 times of the number of teeth of the first gear 11, and the gear ratio of the two gears is equal to the transmission ratio, namely the transmission ratio of the third gear 31 to the first gear 11 is 2-2.3; the number of teeth of the second gear 41 is 2-2.3 times that of the fourth gear 32, and the gear ratio of the two gears is equal to the transmission ratio, i.e. the transmission ratio of the second gear 41 to the fourth gear 32 is 2-2.3. The bearing capacity of the first-stage reduction transmission and the second-stage reduction transmission is approximately equal, and the transmission is stable. The specific tooth numbers of the first gear 11, the second gear 41, the third gear 31 and the fourth gear 32 are selected according to the size requirement and the transmission ratio requirement of the speed reduction clutch, so that the assembly requirement and the transmission ratio are met.
The plurality of duplicate gears 3 are uniformly arranged along the circumferential direction of the input shaft 1 and the output shaft 4; the number of the duplicate gears 3 is 2-4, and the transmission is stable and reliable.
The speed reduction clutch also comprises an input shaft sleeve 6, the input shaft sleeve 6 is arranged in the input shaft sleeve 6, and the first support frame 21 is fixedly connected with the input shaft sleeve 6; the first support frame 21 and the input shaft sleeve 6 can be fixedly connected through roll riveting. A bearing 7 is arranged between the input shaft 1 and the input shaft sleeve 6, so that the input shaft 1 can rotate more smoothly in the input shaft sleeve 6, and the bearing 7 is in interference fit with the input shaft sleeve 6.
The speed reduction clutch further comprises a dehydration shaft 8, the dehydration shaft 8 is of a hollow structure, the output shaft 4 is sleeved in the dehydration shaft 8, and the second support frame 22 is connected with the dehydration shaft 8 in an interference fit mode. Preferably, the second support frame 22 and the dewatering shaft 8 are connected in an interference fit manner by adopting splines, so that the assembly is simple and the connection is reliable. But not limited to this, the utility model discloses a second support frame 22 also can be the integral type structure with dehydration axle 8, the gear shaft promptly, simple structure connects reliably, the utility model discloses do not do the restriction to this. A bearing 7 is arranged between the output shaft 4 and the dewatering shaft 8, so that the output shaft 4 can rotate more smoothly in the dewatering shaft 8, and the bearing 7 is in interference fit with the dewatering shaft 8.
The above is only the preferred embodiment of the present invention, and not the patent protection scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings of the present invention can be directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (10)
1. A speed reduction clutch is characterized by comprising an input shaft, a shell, a plurality of duplicate gears and an output shaft, wherein the input shaft and the output shaft are coaxially arranged, and are all rotatably arranged on the shell, a plurality of duplicate gears are arranged in the shell and are arranged along the circumferential direction of the input shaft and the output shaft, a first gear is arranged at the end part of the input shaft close to the output shaft, a second gear is arranged at the end part of the output shaft close to the input shaft, the dual gear comprises a third gear and a fourth gear which are coaxially arranged, the first gear is meshed with the third gear, the number of teeth of the third gear is larger than that of the teeth of the first gear, so as to form a first-stage speed reducing structure, the second gear is meshed with the fourth gear, and the tooth number of the fourth gear is greater than that of the second gear, so as to form a second-stage speed reducing structure.
2. The speed reduction clutch of claim 1, wherein the housing includes a first support, a second support, and a plurality of support legs, the first support and the second support are disposed opposite to each other, the input shaft and the output shaft are rotatably disposed on the first support and the second support, respectively, and the plurality of support legs are further disposed between the first support and the second support and are uniformly disposed along a circumferential direction of the input shaft and the output shaft.
3. The speed reduction clutch of claim 2, wherein the dual gear further comprises a mandrel, the mandrel is sleeved in a third gear and a fourth gear, two ends of the mandrel are fixedly connected with the first support frame and the second support frame respectively, and the third gear and the fourth gear can rotate around the mandrel.
4. The speed reduction clutch of claim 2, wherein the dual gear further comprises a mandrel, the mandrel is sleeved in the third gear and the fourth gear and is integrated with the third gear and the fourth gear, and two ends of the mandrel are movably connected with the first support frame and the second support frame respectively.
5. The speed reduction clutch of claim 3 or 4, wherein a limiting post is disposed at a connection of the first support frame or the second support frame and the mandrel.
6. The reduction clutch of claim 1, wherein the input shaft, the dual gear and the output shaft form a reduction drive train having a gear ratio of 4-5.
7. The speed reduction clutch of claim 6, wherein the number of teeth of the third gear is 2-2.3 times the number of teeth of the first gear, and the number of teeth of the second gear is 2-2.3 times the number of teeth of the fourth gear; the number of teeth of the third gear is larger than that of the fourth gear.
8. The reduction clutch of claim 1, wherein a plurality of duplicate gears are disposed evenly circumferentially of the input shaft and the output shaft; the number of the duplicate gears is 2-4.
9. The speed reduction clutch of claim 2, further comprising an input sleeve, said input sleeve being received within said input sleeve, said first support bracket being fixedly connected to said input sleeve; and a bearing is arranged between the input shaft and the input shaft sleeve and is in interference fit with the input shaft sleeve.
10. The speed reduction clutch according to claim 2, further comprising a dewatering shaft, wherein the dewatering shaft is of a hollow structure, the output shaft is sleeved in the dewatering shaft, and the second support frame is connected with the dewatering shaft in an interference fit manner; the second support frame is connected with the dehydration shaft in an interference fit manner by adopting a spline; and a bearing is arranged between the output shaft and the dehydration shaft, and the bearing is in interference fit with the dehydration shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525808.6U CN211117384U (en) | 2019-09-12 | 2019-09-12 | Speed reduction clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921525808.6U CN211117384U (en) | 2019-09-12 | 2019-09-12 | Speed reduction clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211117384U true CN211117384U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921525808.6U Active CN211117384U (en) | 2019-09-12 | 2019-09-12 | Speed reduction clutch |
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| Country | Link |
|---|---|
| CN (1) | CN211117384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469637A (en) * | 2019-09-12 | 2019-11-19 | 卧龙电气驱动集团股份有限公司 | Speed-reducing clutch |
-
2019
- 2019-09-12 CN CN201921525808.6U patent/CN211117384U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469637A (en) * | 2019-09-12 | 2019-11-19 | 卧龙电气驱动集团股份有限公司 | Speed-reducing clutch |
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