CN216715129U - Small tooth difference double-speed reducer - Google Patents
Small tooth difference double-speed reducer Download PDFInfo
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- CN216715129U CN216715129U CN202220231805.7U CN202220231805U CN216715129U CN 216715129 U CN216715129 U CN 216715129U CN 202220231805 U CN202220231805 U CN 202220231805U CN 216715129 U CN216715129 U CN 216715129U
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Abstract
The utility model discloses a small tooth difference double-speed reducer. The planetary speed reducer comprises a braking clutch and a small-tooth-difference planetary speed reducer, wherein an output shaft of the braking clutch is positioned on the inner side of a braking shaft sleeve of the braking clutch, a sun gear shaft of the small-tooth-difference planetary speed reducer is positioned on the inner side of an input shaft sleeve, a first convex block protruding forwards is arranged on the front end face of the sun gear shaft, a plurality of second convex blocks protruding forwards are arranged on the front end face of the input shaft sleeve, a first groove matched with the first convex block is arranged on the rear end face of the output shaft, and a second groove matched with the second convex block is arranged on the rear end face of the braking shaft sleeve and in a position corresponding to the second convex block. The utility model can be divided into a brake clutch and a small-tooth-difference planetary reduction gear, when in use, the brake clutch and the small-tooth-difference planetary reduction gear are combined for use, and when a fault occurs, the brake clutch and the small-tooth-difference planetary reduction gear can be separated, so that the maintenance and the replacement are convenient.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a small tooth difference double-speed reducer.
Background
The existing small-tooth-difference double-speed reducer comprises a brake clutch part and a small-tooth-difference planetary reduction part, wherein a sun gear of the small-tooth-difference planetary reduction part is directly sleeved on an output shaft of the brake clutch part, an input shaft sleeve of the small-tooth-difference planetary reduction part is fixedly connected with a brake shaft sleeve of the brake clutch part, namely the brake clutch part and the small-tooth-difference planetary reduction part are integrated and cannot be disassembled, and when the small-tooth-difference double-speed reducer breaks down, the maintenance is inconvenient.
Disclosure of Invention
The utility model provides a small-tooth-difference double-speed reducer, which can be split into a braking clutch and a small-tooth-difference planetary reducer.
In order to solve the problems, the utility model adopts the following technical scheme:
the utility model discloses a small-tooth-difference double-speed reducer which comprises a braking clutch and a small-tooth-difference planetary reduction gear, wherein an output shaft of the braking clutch is positioned on the inner side of a braking shaft sleeve of the braking clutch, a sun gear shaft of the small-tooth-difference planetary reduction gear is positioned on the inner side of an input shaft sleeve, a first convex block protruding forwards is arranged on the front end surface of the sun gear shaft, a plurality of second convex blocks protruding forwards are arranged on the front end surface of the input shaft sleeve, a first groove matched with the first convex blocks is arranged on the rear end surface of the output shaft, and a second groove matched with the second convex blocks is arranged on the rear end surface of the braking shaft sleeve and in positions corresponding to the second convex blocks.
When the planetary reduction gear is used, the first lug on the sun gear shaft is inserted into the first groove on the output shaft, and the second lug on the input shaft sleeve is inserted into the corresponding second lug on the brake shaft sleeve, so that the brake clutch and the small-tooth-difference planetary reduction gear are connected into a whole. When constant-speed output is needed, the output shaft of the brake clutch and the brake shaft sleeve synchronously rotate, and the sun gear shaft and the input shaft sleeve of the small-tooth-difference planetary reduction gear synchronously rotate under the driving of the output shaft of the brake clutch and the brake shaft sleeve, so that constant-speed output is realized. When the speed-reducing output is needed, the output shaft of the brake clutch rotates, the brake shaft sleeve does not rotate, the sun wheel shaft of the small-tooth-difference planetary speed reducing device rotates under the driving of the output shaft of the brake clutch, and the input shaft sleeve of the small-tooth-difference planetary speed reducing device does not rotate under the action of the brake shaft sleeve, so that the speed-reducing output is realized.
When a fault occurs, the braking clutch and the small-tooth-difference planetary reduction gear are separated, and detection and maintenance are respectively carried out, so that maintenance and part replacement are facilitated.
Preferably, the front end surface of the input shaft sleeve is provided with four second lugs protruding forwards at equal intervals along the circumferential direction.
Preferably, the four second protrusions enclose a circle.
Preferably, the first bump is a rectangular bump, and chamfers are arranged on two sides of the first bump.
Preferably, the braking clutch and the small tooth difference planetary reduction gear are detachably connected through a connecting piece. The connecting piece is connected with the frame.
Preferably, the planetary speed reducer with small tooth difference comprises a shell, a sun gear shaft, a sun gear, a planet carrier, an input shaft sleeve, an output main shaft, an input inner gear ring and an output inner gear ring are arranged in the shell, a first through hole is formed in the front side surface of the shell, a second through hole is formed in the rear side surface of the shell, the sun gear shaft is located on the inner side of the input shaft sleeve and is connected with the input shaft sleeve through a bearing, the front end of the sun gear shaft and the front end of the input shaft sleeve both extend out of the first through hole, the sun gear is sleeved at the rear end of the sun gear shaft, the planet carrier is sleeved on the outer side of the sun gear shaft and is connected with the sun gear shaft through a bearing, the planet gear is rotationally connected with the planet carrier, the planet gear is engaged with the sun gear, the input inner gear ring is connected with the input shaft sleeve through a first connecting mechanism, the planet carrier is located on the inner side of the input inner gear ring, and the output inner gear ring is connected with the output main shaft through a second connecting mechanism, the planet carrier is located on the inner side of the output inner gear ring, the front portion of the planet gear is meshed with the input inner gear ring, the rear portion of the planet gear is meshed with the output inner gear ring, the input inner gear ring is connected with the shell through a bearing, the output main shaft extends out of the second through hole, the output main shaft is coaxial with the sun gear shaft, and the number of internal teeth of the input inner gear ring is less than that of the output inner gear ring.
When constant-speed output is needed, the output shaft of the brake clutch and the brake shaft sleeve rotate synchronously, the sun gear shaft and the input shaft sleeve of the small-tooth-difference planetary speed reduction device rotate synchronously under the driving of the output shaft of the brake clutch and the brake shaft sleeve, the input shaft sleeve drives the input inner gear ring to rotate synchronously, the output inner gear ring is driven by the planet gear to rotate synchronously, and the output inner gear ring drives the output main shaft to rotate synchronously, so that constant-speed output is realized. When the output shaft of the brake clutch is required to be decelerated and output, the output shaft of the brake clutch rotates, the brake shaft sleeve does not rotate, the sun wheel shaft of the small-tooth-difference planetary reduction gear rotates under the driving of the output shaft of the brake clutch, the input shaft sleeve of the small-tooth-difference planetary reduction gear does not rotate under the action of the brake shaft sleeve, the input inner gear ring does not rotate, the sun wheel drives the planetary wheel to rotate, the planetary wheel drives the output inner gear ring to rotate, the output inner gear ring drives the output main shaft to synchronously rotate, and the deceleration output is realized.
The utility model has the beneficial effects that: the brake clutch and the small-tooth-difference planetary reduction gear can be separated into the brake clutch and the small-tooth-difference planetary reduction gear, when the brake clutch and the small-tooth-difference planetary reduction gear are used, the brake clutch and the small-tooth-difference planetary reduction gear can be combined for use, and when a fault occurs, the brake clutch and the small-tooth-difference planetary reduction gear can be separated, so that the brake clutch and the small-tooth-difference planetary reduction gear are convenient to maintain and replace.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is a rear view of the brake clutch;
FIG. 3 is a schematic structural diagram of a planetary reduction gear with small teeth difference;
fig. 4 is a sectional view of the small tooth difference planetary reduction gear.
In the figure: 1. the brake clutch, 2, a small-tooth-difference planetary speed reducer, 3, a first lug, 4, a second lug, 5, a first groove, 6, a second groove, 7, an output shaft, 8, a brake shaft sleeve, 9, a shell, 10, a sun wheel shaft, 11, a sun wheel, 12, a planet wheel, 13, a planet carrier, 14, an input shaft sleeve, 15, an output main shaft, 16, an input inner gear ring, 17, an output inner gear ring, 18, a first connecting mechanism, 19 and a second connecting mechanism.
Detailed Description
The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
Example (b): the small-tooth-difference two-speed reducer of the embodiment comprises a braking clutch 1 and a small-tooth-difference planetary reduction gear 2, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, an output shaft 7 of the braking clutch 1 is located inside a braking shaft sleeve 8 of the braking clutch 1, a sun gear shaft 10 of the small-tooth-difference planetary reduction gear 2 is located inside an input shaft sleeve 14, a first protruding block 3 protruding forwards is arranged on the front end face of the sun gear shaft 10, four second protruding blocks 4 protruding forwards are arranged on the front end face of the input shaft sleeve 14 at equal intervals along the circumferential direction, the four second protruding blocks 4 enclose a circle, a first groove 5 matched with the first protruding block 3 is arranged on the rear end face of the output shaft 7, four second grooves 6 matched with the second protruding blocks 4 are arranged on the rear end face of the braking shaft sleeve 8, and the positions of the four second grooves 6 correspond to the positions of the four second protruding blocks 4 one by one. The first bump 3 is a rectangular bump, and chamfers are arranged on two sides of the first bump 3. The braking clutch 1 and the small tooth difference planetary reduction gear 2 are detachably connected through a connecting piece, and the connecting piece is connected with a rack.
When the planetary reduction gear is used, the first lug on the sun gear shaft is inserted into the first groove on the output shaft, and the second lug on the input shaft sleeve is inserted into the corresponding second lug on the brake shaft sleeve, so that the brake clutch and the small-tooth-difference planetary reduction gear are connected into a whole. When a fault occurs, the braking clutch and the small-tooth-difference planetary reduction gear are separated, and detection and maintenance are respectively carried out, so that maintenance and part replacement are facilitated.
The planetary speed reducer 2 with small tooth difference comprises a shell 9, a sun gear shaft 10, a sun gear 11, a planet gear 12, a planet carrier 13, an input shaft sleeve 14, an output main shaft 15, an input inner gear ring 16 and an output inner gear ring 17 are arranged in the shell 9, a first through hole is arranged on the front side surface of the shell 9, a second through hole is arranged on the rear side surface of the shell 9, the sun gear shaft 10 is positioned on the inner side of the input shaft sleeve 14 and is connected with the input shaft sleeve 14 through a bearing, the first through hole extends out of the front end of the sun gear shaft 10 and the front end of the input shaft sleeve 14, the sun gear 11 is sleeved on the rear end of the sun gear shaft 10, the planet carrier 13 is sleeved on the outer side of the sun gear shaft 10 and is connected with the sun gear shaft 10 through a bearing, the planet gear 12 is rotatably connected with the planet carrier 13, the planet gear 12 is meshed with the sun gear 11, the input inner gear ring 16 is connected with the input shaft sleeve 14 through a first connecting mechanism 18, the planet carrier 13 is positioned on the inner side of the input inner gear ring 16, the output inner gear ring 17 is connected with the output main shaft 15 through a second connecting mechanism 19, the planet carrier 13 is positioned on the inner side of an output inner gear ring 17, the front part of the planet gear 12 is meshed with an input inner gear ring 16, the rear part of the planet gear 12 is meshed with the output inner gear ring 17, the input inner gear ring 16 is connected with the shell 9 through a bearing, the output inner gear ring 17 is connected with the shell 9 through a bearing, the output main shaft 15 extends out of a second through hole, the output main shaft 15 is coaxial with the sun gear shaft 10, and the number of teeth of inner teeth of the input inner gear ring 16 is less than that of the inner teeth of the output inner gear ring 17.
When constant-speed output is needed, the output shaft of the brake clutch and the brake shaft sleeve rotate synchronously, the sun gear shaft and the input shaft sleeve of the small-tooth-difference planetary speed reduction device rotate synchronously under the driving of the output shaft of the brake clutch and the brake shaft sleeve, the input shaft sleeve drives the input inner gear ring to rotate synchronously, the output inner gear ring is driven by the planet gear to rotate synchronously, and the output inner gear ring drives the output main shaft to rotate synchronously, so that constant-speed output is realized. When the output shaft of the brake clutch is required to be decelerated and output, the output shaft of the brake clutch rotates, the brake shaft sleeve does not rotate, the sun wheel shaft of the small-tooth-difference planetary reduction gear rotates under the driving of the output shaft of the brake clutch, the input shaft sleeve of the small-tooth-difference planetary reduction gear does not rotate under the action of the brake shaft sleeve, the input inner gear ring does not rotate, the sun wheel drives the planetary wheel to rotate, the planetary wheel drives the output inner gear ring to rotate, the output inner gear ring drives the output main shaft to synchronously rotate, and the deceleration output is realized.
Claims (6)
1. A small-tooth-difference double-speed reducer comprises a braking clutch (1) and a small-tooth-difference planetary reduction gear (2), wherein an output shaft (7) of the braking clutch (1) is located on the inner side of a braking shaft sleeve (8) of the braking clutch (1), a sun wheel shaft (10) of the small-tooth-difference planetary reduction gear (2) is located on the inner side of an input shaft sleeve (14), the small-tooth-difference double-speed reducer is characterized in that a first convex block (3) protruding forwards is arranged on the front end face of the sun wheel shaft (10), a plurality of second convex blocks (4) protruding forwards are arranged on the front end face of the input shaft sleeve (14), a first groove (5) matched with the first convex block (3) is arranged on the rear end face of the output shaft (7), and a second groove (6) matched with the second convex blocks (4) is arranged at the positions, corresponding to the second convex blocks (4), of the rear end face of the braking shaft sleeve (8).
2. A speed reducer with small tooth difference and two speeds as claimed in claim 1, wherein the front end face of said input sleeve (14) is provided with four second protrusions (4) protruding forwards at equal intervals along the circumferential direction.
3. A speed reducer with small tooth difference and two speeds as in claim 2, wherein said four second projections (4) are rounded.
4. A speed reducer according to claim 1, 2 or 3, wherein the first projection (3) is a rectangular projection, and chamfers are provided on both sides of the first projection (3).
5. A speed reducer according to claim 1, 2 or 3, wherein the braking clutch (1) and the planetary speed reducer (2) are detachably connected by a connecting member.
6. The small tooth difference double-speed reducer according to claim 1, 2 or 3, wherein the small tooth difference planetary reduction gear (2) comprises a housing (9), a sun gear shaft (10), a sun gear (11), a planetary gear (12), a planetary carrier (13), an input shaft sleeve (14), an output main shaft (15), an input inner gear ring (16) and an output inner gear ring (17) are arranged in the housing (9), a first through hole is formed in the front side surface of the housing (9), a second through hole is formed in the rear side surface of the housing (9), the sun gear shaft (10) is located inside the input shaft sleeve (14) and connected with the input shaft sleeve (14) through a bearing, the first through hole extends out of the front end of the sun gear shaft (10) and the front end of the input shaft sleeve (14), the sun gear (11) is sleeved on the rear end of the sun gear shaft (10), the planetary carrier (13) is sleeved outside the sun gear shaft (10) and connected with the sun gear shaft (10) through a bearing, the planet gear (12) is rotationally connected with a planet carrier (13), the planet gear (12) is meshed with a sun gear (11), an input inner gear ring (16) is connected with an input shaft sleeve (14) through a first connecting mechanism (18), the planet carrier (13) is positioned on the inner side of the input inner gear ring (16), an output inner gear ring (17) is connected with an output main shaft (15) through a second connecting mechanism (19), the planet carrier (13) is positioned on the inner side of the output inner gear ring (17), the front part of the planet gear (12) is meshed with the input inner gear ring (16), the rear part of the planet gear (12) is meshed with the output inner gear ring (17), the input inner gear ring (16) is connected with a shell (9) through a bearing, the output inner gear ring (17) is connected with the shell (9) through a bearing, the output main shaft (15) is connected with the shell (9) through a bearing, and the output main shaft (15) extends out of a second through hole, the output main shaft (15) is coaxial with the sun gear shaft (10), and the number of the internal teeth of the input inner gear ring (16) is less than that of the internal teeth of the output inner gear ring (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220231805.7U CN216715129U (en) | 2022-01-25 | 2022-01-25 | Small tooth difference double-speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220231805.7U CN216715129U (en) | 2022-01-25 | 2022-01-25 | Small tooth difference double-speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216715129U true CN216715129U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220231805.7U Active CN216715129U (en) | 2022-01-25 | 2022-01-25 | Small tooth difference double-speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216715129U (en) |
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2022
- 2022-01-25 CN CN202220231805.7U patent/CN216715129U/en active Active
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