CN213808697U - Variable torque planetary reducer - Google Patents
Variable torque planetary reducer Download PDFInfo
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- CN213808697U CN213808697U CN202021906141.7U CN202021906141U CN213808697U CN 213808697 U CN213808697 U CN 213808697U CN 202021906141 U CN202021906141 U CN 202021906141U CN 213808697 U CN213808697 U CN 213808697U
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- sector gear
- planet carrier
- gear
- input shaft
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Abstract
The utility model relates to a torque-variable planetary reducer, which comprises an input shaft, a first gear and a second gear, wherein the first gear is sleeved on the input shaft; the annular inner wall of the shell is convexly provided with second sector teeth; the planet carrier is provided with a plurality of waist holes at equal intervals, and the opening direction of the waist holes points to the circle center of the planet carrier; the output end of the planet carrier penetrates through the shell; the third sector teeth are rotatably arranged in the corresponding waist holes and are respectively meshed with the first sector teeth and the second sector teeth; when the input shaft is close to the shell, the distance between the first sector gear and the second sector gear is reduced, the third sector gear moves towards the circle center of the planet carrier along the waist hole in an inclined mode, and the torque of the output end of the planet carrier is increased; when the input shaft moves in the horizontal direction, the distance between the first sector gear and the second sector gear is increased or decreased, the third sector gear is always meshed with the first sector gear and the second sector gear through the movement of the third sector gear relative to the waist hole, and therefore the torque change of the planetary speed reducer is achieved.
Description
Technical Field
The utility model relates to a planetary reducer specifically is a variable torque planetary reducer.
Background
The planetary reducer is connected with the motor, so that the rotating speed of the motor end is reduced, and the torque is improved, but the maximum torque of the conventional planetary reducer is limited when the conventional planetary reducer leaves a factory;
in conclusion, how to realize the torque change of the planetary reducer becomes a problem which needs to be solved urgently by researchers of the company.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to realize the torque change of the planetary reducer;
in order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model relates to a torque-variable planetary reducer, which comprises an input shaft, a first gear and a second gear, wherein the first gear is sleeved on the input shaft; the annular inner wall of the shell is convexly provided with second sector teeth; the planet carrier is provided with a plurality of waist holes at equal intervals, and the opening direction of the waist holes points to the circle center of the planet carrier; the output end of the planet carrier penetrates through the shell; the third sector teeth are rotatably arranged in the corresponding waist holes and are respectively meshed with the first sector teeth and the second sector teeth; when the input shaft is close to the shell, the distance between the first sector gear and the second sector gear is reduced, the third sector gear moves towards the circle center of the planet carrier along the waist hole in an inclined mode, and the torque of the output end of the planet carrier is increased;
in the scheme, the third sector gear is equivalent to a planet gear, the first sector gear is equivalent to a sun gear, the second sector gear plays a supporting role, the rotation of the input shaft drives the rotation of the first sector gear, the first sector gear drives the planet gear and the third sector gear to rotate relative to the second sector gear, and finally the output shaft is driven to rotate; the waist hole is formed in the planet carrier, the third sector teeth can move relative to the planet carrier, and the radius of a circle formed by a plurality of third sector teeth can be changed; in addition, in the present aspect, the position of the carrier does not move in the horizontal direction with respect to the housing, and when the input shaft moves in the horizontal direction, the distance between the first and second teeth becomes larger or smaller, and the third tooth is always engaged with the first and second teeth by the movement of the third tooth with respect to the waist hole, thereby changing the torque of the planetary reducer.
In order to explain how the output end of the planetary reducer is fixed after horizontal movement, the utility model adopts a fixed part arranged on one end surface of the shell; a bearing is movably arranged in the fixed part, and the input shaft is fixedly connected with an inner ring of the bearing; the fixing part is provided with a limiting rod which penetrates through the fixing part to abut against the outer ring of the bearing;
when the output shaft drives the bearing to move to a proper position relative to the fixing part, the limiting rod penetrates through the fixing part and abuts against the outer ring of the bearing, and the output end is fixed after moving horizontally.
The utility model has the advantages that: the utility model relates to a become torque planetary reducer, when the input shaft takes place the removal of horizontal direction, the distance grow or diminish between first, two fan teeth, realize through the removal of third fan tooth for the waist hole that third fan tooth meshes with first, two fan teeth all the time to realize planetary reducer's moment of torsion change.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the planet carrier of the present invention;
in the figure: 1-input shaft, 2-first sector gear, 3-shell, 4-second sector gear, 5-planet carrier, 6-waist hole, 7-third sector gear, 8-output end, 9-fixing part, 10-bearing and 11-limiting rod.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-2, the utility model relates to a torque-variable planetary reducer, which comprises an input shaft 1, a first sector gear 2 is sleeved and fixed on the input shaft; the annular inner wall of the shell 3 is convexly provided with a second sector gear 4; the planet carrier 5 is provided with a plurality of waist holes 6 at equal intervals, and the opening direction of the waist holes 6 points to the circle center of the planet carrier 5; the output end 8 of the planet carrier 5 penetrates through the shell 3; the third sector 7 teeth are rotatably arranged in the corresponding waist holes 6, and the third sector teeth 7 are respectively meshed with the first sector teeth 2 and the second sector teeth 4; when the input shaft 1 is close to the shell, the distance between the first sector gear 2 and the second sector gear 4 is reduced, the third sector gear 7 obliquely moves to the circle center of the planet carrier 5 along the waist hole 6, and the torque of the output end 8 of the planet carrier 5 is increased;
in the scheme, the third sector gear is equivalent to a planet gear, the first sector gear is equivalent to a sun gear, the second sector gear plays a supporting role, the rotation of the input shaft drives the rotation of the first sector gear, the first sector gear drives the planet gear and the third sector gear to rotate relative to the second sector gear, and finally the output shaft is driven to rotate; the waist hole is formed in the planet carrier, the third sector teeth can move relative to the planet carrier, and the radius of a circle formed by a plurality of third sector teeth can be changed; in addition, in the present aspect, the position of the carrier does not move in the horizontal direction with respect to the housing, and when the input shaft moves in the horizontal direction, the distance between the first and second teeth becomes larger or smaller, and the third tooth is always engaged with the first and second teeth by the movement of the third tooth with respect to the waist hole, thereby changing the torque of the planetary reducer.
As shown in fig. 1, in order to explain how the output end of the planetary reducer is fixed after moving horizontally, the present invention adopts a fixing part 9 arranged on one end surface of the casing 3; a bearing 10 is movably arranged in the fixed part 9, and the input shaft 1 is fixedly connected with an inner ring of the bearing 10; a limiting rod 11 is arranged on the fixing part 9, and the limiting rod 11 penetrates through the fixing part 9 to abut against the outer ring of the bearing 10;
when the output shaft drives the bearing to move to a proper position relative to the fixing part, the limiting rod penetrates through the fixing part and abuts against the outer ring of the bearing, and the output end is fixed after moving horizontally.
The utility model has the advantages that: the utility model relates to a become torque planetary reducer, when the input shaft takes place the removal of horizontal direction, the distance grow or diminish between first, two fan teeth, realize through the removal of third fan tooth for the waist hole that third fan tooth meshes with first, two fan teeth all the time to realize planetary reducer's moment of torsion change.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (2)
1. A torque-variable planetary reducer is characterized in that: comprises that
The input shaft is sleeved with a first sector gear;
the annular inner wall of the shell is convexly provided with second sector teeth;
the planet carrier is provided with a plurality of waist holes at equal intervals, and the opening direction of the waist holes points to the circle center of the planet carrier; the output end of the planet carrier penetrates through the shell;
the third sector teeth are rotatably arranged in the corresponding waist holes and are respectively meshed with the first sector teeth and the second sector teeth;
when the input shaft is close to the shell, the distance between the first sector gear and the second sector gear is reduced, the third sector gear is obliquely arranged along the waist hole to move towards the circle center of the planet carrier, and the torque of the output end of the planet carrier is increased.
2. The torque-variable planetary reducer according to claim 1, wherein: a fixing part is arranged on one end face of the shell;
a bearing is movably arranged in the fixed part, and the input shaft is fixedly connected with an inner ring of the bearing;
the fixing part is provided with a limiting rod, and the limiting rod penetrates through the fixing part to abut against the outer ring of the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021906141.7U CN213808697U (en) | 2020-09-03 | 2020-09-03 | Variable torque planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021906141.7U CN213808697U (en) | 2020-09-03 | 2020-09-03 | Variable torque planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213808697U true CN213808697U (en) | 2021-07-27 |
Family
ID=76952449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021906141.7U Active CN213808697U (en) | 2020-09-03 | 2020-09-03 | Variable torque planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213808697U (en) |
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2020
- 2020-09-03 CN CN202021906141.7U patent/CN213808697U/en active Active
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