CN204878546U - Speed reducer - Google Patents
Speed reducer Download PDFInfo
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- CN204878546U CN204878546U CN201520659234.7U CN201520659234U CN204878546U CN 204878546 U CN204878546 U CN 204878546U CN 201520659234 U CN201520659234 U CN 201520659234U CN 204878546 U CN204878546 U CN 204878546U
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- gear
- double
- teeth portion
- speed reducer
- shaft
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Abstract
The utility model discloses a speed reducer, this speed reducer includes: a quick -witted case, install input shaft and the output shaft on quick -witted case and install in quick -witted case and connect the step down gear mechanism between input shaft and output shaft, step down gear mechanism is provided with measure -alike first, second pinion including installing the transmission shaft in quick -witted case and installing in epaxial first, the 2nd double gear of transmission on this input shaft, this is first, the second pinion meshes with first, the 2nd double gear respectively, be provided with the gear wheel on the output shaft, this gear wheel and first, the 2nd double gear meshing. The utility model discloses the structure is comparatively simple to adopting dual drive and the two kind of drive to go on matcing rotational speed and transmitting torque to input shaft and output shaft, having good effect, and have fabulous transmission stability, the maintenance of still being convenient for makes the utility model discloses higher market competition has.
Description
technical field:
The utility model relates to speed reducer technical field, refers in particular to a kind of speed reducer.
background technique:
Speed reducer is a kind of speed changer, it is generally used for the transmission device of low rotation speed large torque, principle is motor, internal-combustion engine, motor or other power run up, and by the gearwheel on the gears meshing output shaft that the number of teeth on the input shaft of speed reducer is few, thus reaches the object of deceleration; The ratio of the number of teeth of large small gear is exactly velocity ratio.Retarder is commonly used for the speed reduction gearing between prime mover and working machine, plays coupling rotating speed and transmitting torque, apply very extensive in modern mechanical between prime mover and working machine or actuator.
Retarder of the prior art generally comprises: a cabinet, be installed on input shaft and the output shaft on cabinet and be installed in cabinet and the reduction gearing mechanism be connected between input shaft and output shaft, the structure of this reduction gearing mechanism is very simple, cause its transmission stability not good, and the effect of coupling rotating speed and transmitting torque is not ideal enough; Or the structure of this reduction gearing mechanism is comparatively complicated, make its transmission stability better, and the effect of coupling rotating speed and transmitting torque is ideal, but its fabricating cost is high, is unfavorable for maintenance.
In view of this, the present inventor proposes following technological scheme.
model utility content:
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of speed reducer.
In order to solve the problems of the technologies described above, the utility model have employed following technical proposals: this speed reducer comprises: a cabinet, be installed on input shaft and the output shaft on cabinet and be installed in cabinet and the reduction gearing mechanism be connected between input shaft and output shaft, described reduction gearing mechanism comprises the transmission shaft be installed in cabinet and first, second Double-gear be installed on transmission shaft, this input shaft is provided with first, second measure-alike small gear, this first, second small gear engages with first, second Double-gear respectively; Described output shaft is provided with gearwheel, and this gearwheel engages with first, second Double-gear.
Furthermore, in technique scheme, the first described Double-gear is the same with the second Double-gear structure, and this first Double-gear and the second Double-gear symmetry are installed on described transmission shaft.
Furthermore, in technique scheme, first, second Double-gear described includes the middle gear and miniature gear that are solidified as a whole, and the middle gear in this first, second Double-gear engages with first, second small gear described respectively; Miniature gear in this first, second Double-gear all engages with described gearwheel.
Furthermore, in technique scheme, described gearwheel periphery is provided with the second teeth portion that circle first teeth portion and a circle are positioned at the first teeth portion side, and this first teeth portion and the second teeth portion engage with the miniature gear in first, second Double-gear described respectively.
Furthermore, in technique scheme, the middle gear in the teeth portion of first, second small gear described and first, second Double-gear and the teeth portion of miniature gear are helical teeth; First teeth portion and the second teeth portion are helical teeth, and this first teeth portion and the second teeth portion symmetrical.
Furthermore, in technique scheme, described input shaft, output shaft and transmission shaft are all installed in cabinet by first, second, third bearing.
Furthermore, in technique scheme, described input shaft is socketed with the first seal ring, this first seal ring is positioned at clutch shaft bearing side; Described output shaft is socketed with the second seal ring, this second seal ring is positioned at the second bearing side; Described transmission shaft is socketed with the 3rd seal ring, the 3rd seal ring is positioned at the 3rd bearing side.
Furthermore, in technique scheme, the root diameter size of the middle gear of first, second Double-gear described is more than 2 times or 2 times of the root diameter size of miniature gear; The root diameter size of the middle gear of first, second Double-gear described is more than 3 times or 3 times of the root diameter size of first, second small gear; The root diameter size of described gearwheel is more than 1.5 times or 1.5 times of the root diameter size of the middle gear of first, second Double-gear described.
After adopting technique scheme, the utility model has following beneficial effect compared with prior art: the utility model structure is comparatively simple, and adopt Dual Drive and two kind of drive to carry out carrying out coupling rotating speed and transmitting torque to input shaft and output shaft, there is good effect, and there is fabulous transmission stability, also be convenient to maintenance, make the utility model have the higher market competitiveness.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model.
embodiment:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
As shown in Figure 1, for a kind of speed reducer, it comprises: a cabinet 1, be installed on input shaft 2 and the output shaft 3 on cabinet 1 and be installed in cabinet 1 and the reduction gearing mechanism 4 be connected between input shaft 2 and output shaft 3, described reduction gearing mechanism 4 comprises the transmission shaft 41 be installed in cabinet 1 and first, second Double-gear 42,43 be installed on transmission shaft 41, this input shaft 2 is provided with first, second measure-alike small gear 21,22, this first, second small gear 21,22 engages with first, second Double-gear 42,43 respectively; Described output shaft 3 is provided with gearwheel 31, and this gearwheel 31 engages with first, second Double-gear 42,43.
The first described Double-gear 42 is the same with the second Double-gear 43 structure, and this first Double-gear 42 and the second Double-gear 43 symmetry are installed on described transmission shaft 41.
First, second Double-gear 42,43 described includes the middle gear 421,431 and miniature gear 422,432 that are solidified as a whole, middle gear 421,431 in this first, second Double-gear 42,43 engages with first, second small gear 21,22 described respectively, to cause described input shaft 2 to realize Dual Drive by first, second small gear 21,22 pairs of transmission shafts 41, and there is fabulous transmission stability.Miniature gear 422,432 in this first, second Double-gear 42,43 all engages with described gearwheel 31.
Described gearwheel 31 periphery is provided with the second teeth portion 312 that circle first teeth portion 311 and a circle are positioned at the first teeth portion 311 side, this first teeth portion 311 and the second teeth portion 312 engage with the miniature gear 422,432 in first, second Double-gear 42,43 described respectively, to cause reduction gearing mechanism 4 pairs of output shafts to carry out two transmission, and there is fabulous transmission stability.
Middle gear 421,431 in the teeth portion of first, second small gear 21,22 described and first, second Double-gear 42,43 and the teeth portion of miniature gear 422,432 are helical teeth; First teeth portion 311 and the second teeth portion 312 are helical teeth, and this first teeth portion 311 and the second teeth portion 312 symmetrical.
The root diameter size of the middle gear 421,431 of first, second Double-gear 42,43 described is more than 2 times or 2 times of the root diameter size of miniature gear 422,432; The root diameter size of the middle gear 421,431 of first, second Double-gear 42,43 described is more than 3 times or 3 times of the root diameter size of first, second small gear 21,22; The root diameter size of described gearwheel is more than 1.5 times or 1.5 times of the root diameter size of the middle gear 421,431 of first, second Double-gear 42,43 described.
Described input shaft 2, output shaft 3 and transmission shaft 41 are all installed in cabinet 1 by first, second, third bearing 101,102,103.Wherein, described input shaft 2 is socketed with the first seal ring 104, this first seal ring 104 is positioned at clutch shaft bearing 101 side; Described output shaft 3 is socketed with the second seal ring 105, this second seal ring 105 is positioned at the second bearing 102 side; Described transmission shaft 41 is socketed with the 3rd seal ring the 106, three seal ring 106 and is positioned at the 3rd bearing 103 side.
The utility model structure is comparatively simple, and adopt Dual Drive and two kind of drive to carry out carrying out coupling rotating speed and transmitting torque to input shaft and output shaft, there is good effect, and there is fabulous transmission stability, also be convenient to maintenance, make the utility model have the higher market competitiveness.
Certainly, the foregoing is only specific embodiment of the utility model, be not limit the utility model practical range, all equivalences done according to structure, feature and principle described in the utility model claim change or modify, and all should be included in the utility model claim.
Claims (8)
1. a speed reducer, it comprises: a cabinet (1), be installed on input shaft (2) and the output shaft (3) on cabinet (1) and be installed in cabinet (1) and the reduction gearing mechanism (4) be connected between input shaft (2) and output shaft (3), it is characterized in that: described reduction gearing mechanism (4) comprises the transmission shaft (41) be installed in cabinet (1) and be installed on transmission shaft (41) first, second Double-gear (42, 43), this input shaft (2) is provided with measure-alike first, second small gear (21, 22), this is first years old, second small gear (21, 22) respectively with first, second Double-gear (42, 43) engage, described output shaft (3) is provided with gearwheel (31), this gearwheel (31) engages with first, second Double-gear (42,43).
2. a kind of speed reducer according to claim 1, it is characterized in that: described the first Double-gear (42) is the same with the second Double-gear (43) structure, and this first Double-gear (42) and the second Double-gear (43) symmetry are installed on described transmission shaft (41).
3. a kind of speed reducer according to claim 1, it is characterized in that: first, second Double-gear described (42,43) includes the middle gear (421,431) and miniature gear (422,432) that are solidified as a whole, and the middle gear (421,431) in this first, second Double-gear (42,43) engages with first, second small gear described (21,22) respectively; Miniature gear (422,432) in this first, second Double-gear (42,43) all engages with described gearwheel (31).
4. a kind of speed reducer according to claim 3, it is characterized in that: described gearwheel (31) periphery is provided with the second teeth portion (312) that circle first teeth portion (311) He Yiquan is positioned at the first teeth portion (311) side, this first teeth portion (311) and the second teeth portion (312) engage with the miniature gear (422,432) in first, second Double-gear described (42,43) respectively.
5. a kind of speed reducer according to claim 4, is characterized in that: the middle gear (421,431) in the teeth portion of first, second small gear described (21,22) and first, second Double-gear (42,43) and the teeth portion of miniature gear (422,432) are helical teeth; First teeth portion (311) and the second teeth portion (312) are helical teeth, and this first teeth portion (311) and the second teeth portion (312) are symmetrically.
6. a kind of speed reducer according to claim 1-5 any one, is characterized in that: described input shaft (2), output shaft (3) and transmission shaft (41) are all installed in cabinet (1) by first, second, third bearing (101,102,103).
7. a kind of speed reducer according to claim 6, is characterized in that: described input shaft (2) is socketed with the first seal ring (104), and this first seal ring (104) is positioned at clutch shaft bearing (101) side; Described output shaft (3) is socketed with the second seal ring (105), this second seal ring (105) is positioned at the second bearing (102) side; Described transmission shaft (41) is socketed with the 3rd seal ring (106), the 3rd seal ring (106) is positioned at the 3rd bearing (103) side.
8. a kind of speed reducer according to claim 3-5 any one, is characterized in that: the root diameter size of the middle gear (421,431) of first, second Double-gear described (42,43) is more than 2 times or 2 times of the root diameter size of miniature gear (422,432); The root diameter size of the middle gear (421,431) of first, second Double-gear described (42,43) is more than 3 times or 3 times of the root diameter size of first, second small gear (21,22); The root diameter size of described gearwheel is more than 1.5 times or 1.5 times of the root diameter size of the middle gear (421,431) of first, second Double-gear described (42,43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520659234.7U CN204878546U (en) | 2015-08-28 | 2015-08-28 | Speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520659234.7U CN204878546U (en) | 2015-08-28 | 2015-08-28 | Speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878546U true CN204878546U (en) | 2015-12-16 |
Family
ID=54822921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520659234.7U Expired - Fee Related CN204878546U (en) | 2015-08-28 | 2015-08-28 | Speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195140A (en) * | 2016-08-30 | 2016-12-07 | 嘉善金亿精密铸件有限公司 | The drive mechanism that a kind of electric rotating aperture apparatus uses |
| CN106594184A (en) * | 2016-12-19 | 2017-04-26 | 传仕重工(苏州)有限公司 | Double-gear joint structure of speed reducer |
-
2015
- 2015-08-28 CN CN201520659234.7U patent/CN204878546U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195140A (en) * | 2016-08-30 | 2016-12-07 | 嘉善金亿精密铸件有限公司 | The drive mechanism that a kind of electric rotating aperture apparatus uses |
| CN106594184A (en) * | 2016-12-19 | 2017-04-26 | 传仕重工(苏州)有限公司 | Double-gear joint structure of speed reducer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20190828 |