CN214171240U - Bidirectional stress balancing mechanism for secondary planetary reducer - Google Patents
Bidirectional stress balancing mechanism for secondary planetary reducer Download PDFInfo
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- CN214171240U CN214171240U CN202120079450.XU CN202120079450U CN214171240U CN 214171240 U CN214171240 U CN 214171240U CN 202120079450 U CN202120079450 U CN 202120079450U CN 214171240 U CN214171240 U CN 214171240U
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- planetary reducer
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Abstract
The utility model belongs to the technical field of the planetary reducer, concretely relates to two-way stress balance mechanism for second grade planetary reducer, including at least a pair of tooth cam that takes, two gear parts meshing of taking the tooth cam are in the same place, and two tops of taking the tooth cam respectively the butt on the atress device (one-level tapering ring gear and second grade tapering ring gear) of the left and right sides. The utility model discloses simple structure, reasonable in design for take the tooth cam to act on the power on the first second grade tapering ring gear of the left and right sides remain unanimous throughout, thereby at the in-process that the gear drive clearance was eliminated, guarantee that the elimination range in clearance is unanimous, improve the life of speed reducer.
Description
Technical Field
The utility model relates to a two-way atress balance mechanism for second grade planetary reducer belongs to planetary reducer technical field.
Background
The planetary reducer is an industrial product with wide application, and can reduce the rotating speed of a motor and increase the output torque. In the structure of the two-stage planetary reducer in the prior art on the market, the two-stage inner gear ring is a rigid gear ring and is connected with the casing into a whole through bolts, the inner gear ring can be gradually worn along with the prolonging of the service life, the transmission gap can be increased, the reverse gap of the reducer is increased, the transmission precision is reduced, the noise in working is increased, and even the reducer cannot work normally in serious conditions.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the bidirectional stress balance mechanism for the secondary planetary reducer is used for overcoming the defects of the prior art, and acts between the primary taper inner gear ring and the secondary taper inner gear ring to ensure that the primary taper inner gear ring and the secondary taper inner gear ring perform synchronous axial displacement and the elimination of the gap is kept consistent.
A two-way atress balance mechanism for second grade planetary reducer, including at least a pair of tooth cam of taking, two gear parts of taking the tooth cam mesh together, two tops of taking the tooth cam respectively the butt on the atress device (one-level tapering ring gear and second grade tapering ring gear) of the left and right sides.
As shown in FIG. 3, when an external force is applied to point C, point B is forced in the same direction by the toothed cam structure. When the force direction of the point B is limited, the acting force is reversely transmitted back to the point C through the toothed cam structure, and the consistent pressure of the point B, C is ensured. Due to the relation of the eccentric cam, the radial force of the first-stage taper inner gear ring and the second-stage taper inner gear ring acting on the first-stage planet gear is always kept consistent, and the elimination amplitude of the clearance is guaranteed to be consistent in the elimination process of the gear transmission clearance.
The toothed cam rotates and is arranged on the pin shaft, and the pin shaft is fixed on the outer ring of the needle bearing.
The toothed cam is provided with a plurality of pairs, and a plurality of pairs of toothed cam equipartitions are on bearing's outer loop.
Compared with the prior art, the utility model beneficial effect who has is:
a two-way atress balance mechanism for second grade planetary reducer, simple structure, reasonable in design for take the tooth cam to act on the power on the second grade tapering ring gear of the left and right sides remain unanimous all the time, thereby at the in-process that the gear drive clearance was eliminated, guarantee that the elimination range in clearance is unanimous, improve the life of speed reducer.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic view of the present invention;
FIG. 4 is a schematic view of the installation structure of the present invention in the planetary reduction gear;
fig. 5 is a partially enlarged view of a portion D in fig. 4.
In the figure: 1. a toothed cam; 2. a pin shaft; 3. a needle bearing.
Detailed Description
The invention will be further described with reference to the following examples:
as shown in fig. 1 to 4, a bidirectional stress balance mechanism for a two-stage planetary reducer comprises at least one pair of toothed cams 1, wherein gear parts of the two toothed cams 1 are meshed together, and top ends of the two toothed cams 1 are respectively abutted to stress devices on the left side and the right side.
Wherein, the cam 1 with tooth is rotated and is set up on round pin axle 2, and the cam 1 with tooth is provided with a plurality of pairs, and a plurality of pairs of cam 1 with tooth equipartition are on the outer loop of bearing 3.
The utility model discloses a theory of operation:
as shown in FIG. 3, when an external force is applied to point C, point B is forced in the same direction by the toothed cam structure. When the force direction of the point B is limited, the acting force is reversely transmitted back to the point C through the toothed cam structure, and the consistent pressure of the point B, C is ensured. Due to the relation of the eccentric cam, the radial force of the first-stage taper inner gear ring and the second-stage taper inner gear ring acting on the first-stage planet gear is always kept consistent, so that the elimination range of the gap is ensured to be consistent in the elimination process of the gear transmission gap, and the service life of the speed reducer is prolonged.
Claims (3)
1. The utility model provides a two-way atress balance mechanism for second grade planetary reducer which characterized in that: the gear comprises at least one pair of toothed cams (1), wherein gear parts of the two toothed cams (1) are meshed together, and the top ends of the two toothed cams (1) are respectively abutted to the stress devices on the left side and the right side.
2. The bidirectional force balancing mechanism for the two-stage planetary reducer according to claim 1, wherein: the toothed cam (1) is rotationally arranged on the pin shaft (2), and the pin shaft (2) is fixed on an outer ring of the needle bearing (3).
3. The bidirectional force balancing mechanism for the two-stage planetary reducer according to claim 2, wherein: the toothed cams (1) are provided with a plurality of pairs, and the toothed cams (1) are uniformly distributed on an outer ring of the needle bearing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079450.XU CN214171240U (en) | 2021-01-12 | 2021-01-12 | Bidirectional stress balancing mechanism for secondary planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120079450.XU CN214171240U (en) | 2021-01-12 | 2021-01-12 | Bidirectional stress balancing mechanism for secondary planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214171240U true CN214171240U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120079450.XU Active CN214171240U (en) | 2021-01-12 | 2021-01-12 | Bidirectional stress balancing mechanism for secondary planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214171240U (en) |
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2021
- 2021-01-12 CN CN202120079450.XU patent/CN214171240U/en active Active
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