CN217205984U - One-way damping gear - Google Patents
One-way damping gear Download PDFInfo
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- CN217205984U CN217205984U CN202220493741.8U CN202220493741U CN217205984U CN 217205984 U CN217205984 U CN 217205984U CN 202220493741 U CN202220493741 U CN 202220493741U CN 217205984 U CN217205984 U CN 217205984U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses an one-way damping gear, including the damping casing, the perisporium of damping casing is equipped with annular ring gear, the damping casing internal rotation is equipped with the damping axle, the damping axle sets up with the damping casing is coaxial, just produce the damping force when damping axle rotates with the damping casing relatively, the shaft hole has been seted up at the middle part of damping axle, be equipped with the connecting axle in the shaft hole, the connecting axle sets up with the damping axle is coaxial, the perisporium cover of connecting axle is equipped with one-way bearing, one-way bearing's inner ring and connecting axle fixed connection, one-way bearing's outer loop and damping axle fixed connection. The utility model provides an one-way damping gear can not produce the damping force when the one-way bearing can the pivoted direction motion towards, can produce the damping force when the unable pivoted direction motion of one-way bearing towards to reduce the roll speed.
Description
Technical Field
The utility model relates to a attenuator technical field especially relates to an one-way damping gear.
Background
Along with the development of society, at present, more and more families all have semi-automatic translation door, such as wardrobe door, locker door and show cupboard, and this type of semi-automatic translation door mostly uses the spring to provide power, uses rack and pinion to drive, and the manual door that needs at first when using, extrudees the spring, realizes closing automatically with the help of the elasticity that the spring produced when closing. Because the frictional force between the gear and the rack is small, after the elastic force generated by the spring is received, the door closing speed can be high, large impact can be generated when the door is closed, noise is generated, and the translation door is damaged. In order to solve the problem, the existing translation door is generally connected with a gear through a damping shaft, and the gear can receive damping force generated by the damping shaft when rotating, so that the rolling speed of the gear is reduced, and the door closing speed is further reduced. However, when the damping shaft is used, the sliding door can generate damping force when being opened, the rolling speed of the gear is reduced, the force required for opening the sliding door is increased, and the door opening is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an one-way damping gear can not produce the damping force when the one-way bearing can the pivoted direction motion, can produce the damping force when the unable pivoted direction motion of one-way bearing to reduce the roll speed.
The utility model discloses an one-way damping gear adopts technical scheme is:
the utility model provides an one-way damping gear, includes the damping casing, the perisporium of damping casing is equipped with annular ring gear, the damping casing internal rotation is equipped with the damping axle, the damping axle sets up with the damping casing is coaxial, just produce the damping force when damping axle rotates with the damping casing relatively, the shaft hole has been seted up at the middle part of damping axle, be equipped with the connecting axle in the shaft hole, the connecting axle sets up with the damping axle is coaxial, the perisporium cover of connecting axle is equipped with one-way bearing, one-way bearing's inner ring and connecting axle fixed connection, one-way bearing's outer loop and damping axle fixed connection, frictional force between damping casing and the damping axle is greater than the rotatory frictional force of one-way bearing inner ring.
As a preferred scheme, the damping shell is internally divided into two cavities through a damping shaft, damping oil is filled in the two cavities, a plurality of through holes are formed in the surface of the damping shaft and distributed at the same intervals around the axis of the damping shaft, the through holes are sequentially arranged in a manner of diffusing away from the axis of the damping shaft, the two cavities are communicated through the through holes, a plurality of first convex rings and second convex rings are respectively arranged on the two sides of the damping shaft, the second convex rings are arranged corresponding to the through holes, the first convex rings and the second convex rings are arranged in a staggered manner, a third convex ring is arranged on one side of the damping shell close to the first convex rings and arranged corresponding to the through holes, a gap exists between the first convex rings and the third convex rings, a fourth convex ring is arranged on one side of the damping shell close to the second convex rings, and the fourth convex rings are arranged in a staggered manner, and a gap exists between the fourth convex ring and the second convex ring.
As a preferred scheme, the second bulge loop is provided with a first avoiding groove corresponding to the through hole, and the third bulge loop is provided with a second avoiding groove corresponding to the through hole.
Preferably, a sealing ring is arranged at the joint of the damping shell and the damping shaft.
As the preferred scheme, shaft hole one end is equipped with positioning groove, one-way bearing is fixed to be located in positioning groove.
Preferably, the damping housing includes a rotating body and an end cover, the annular gear ring is disposed on a circumferential wall of the rotating body, the end cover is disposed on one side of the rotating body, the end cover and the damping shaft are coaxially disposed, and the damping shaft generates a damping force when the damping shaft rotates relative to the rotating body and the end cover.
Preferably, the damping housing is ultrasonically welded to the end cap.
The utility model discloses an one-way damping gear's beneficial effect is: because the inner ring of the one-way bearing can rotate in a certain direction and cannot rotate in the other opposite direction, when the one-way damping gear is used, the connecting shaft is in a fixed state, when the one-way damping gear rolls towards the direction in which the inner ring of the one-way bearing can rotate, because the friction force between the damping shell and the damping shaft is greater than the rotating friction force of the inner ring of the one-way bearing, when the inner ring of the one-way bearing rotates, the outer ring of the one-way bearing, the damping shaft and the damping shell form a whole and rotate around the connecting shaft, and because the damping shaft and the damping shell rotate in the same direction and do not rotate relatively, no damping force is generated, so that the rolling speed of the one-way damping gear is not influenced; on the contrary, when the unidirectional damping gear rolls towards the direction that the inner ring of the unidirectional bearing cannot rotate, the inner ring and the outer ring of the unidirectional bearing, the connecting shaft and the damping shaft form a whole body at the moment, the unidirectional bearing cannot rotate, the damping shell rotates around the damping shaft, namely, the damping shell and the damping shaft rotate relatively, damping force is generated, and therefore the rolling speed of the unidirectional damping gear is reduced. When product and one-way damping gear cooperation use: the product is fixedly connected with the connecting shaft, the opening direction of the product is the direction in which the inner ring of the one-way bearing can rotate, the closing direction of the product is the direction in which the inner ring of the one-way bearing cannot rotate, and when the product is opened, the one-way damping gear does not generate damping force, so that the opening speed of the product cannot be reduced; when the product is closed, the one-way damping gear generates damping force, so that the closing speed of the product is reduced, the impact when the product is closed is reduced, and the noise is reduced to protect the product.
Drawings
Fig. 1 is a schematic structural view of the unidirectional damping gear of the present invention.
Fig. 2 is a sectional view of fig. 1.
Fig. 3 is an exploded view of the one-way damping gear of the present invention.
Fig. 4 is a schematic structural diagram of the damping housing of the unidirectional damping gear of the present invention.
Fig. 5 is a schematic structural view of the damping shaft of the unidirectional damping gear of the present invention.
Fig. 6 is a schematic view of another angle of the damping shaft of the unidirectional damping gear of the present invention.
Fig. 7 is a schematic structural view of an end cover of the unidirectional damping gear of the present invention.
10. A damping housing; 11. rotating the main body; 12. an end cap; 13. an annular ring gear; 14. a third convex ring; 141. a second avoiding groove; 15. a fourth convex ring; 20. a damping shaft; 21. a shaft hole; 22. a through hole; 23. a first convex ring; 24. a second convex ring; 241. a first avoiding groove; 25. a positioning groove; 30. a one-way bearing; 40. a seal ring; 50. and (7) connecting the shafts.
Detailed Description
The invention will be further elucidated and described with reference to the following embodiments and drawings in which:
referring to fig. 1 to 3, a unidirectional damping gear includes a damping housing 10, a circumferential wall of the damping housing 10 is provided with an annular gear ring 13, a damping shaft 20 is rotatably disposed in the damping housing 10, the damping shaft 20 is disposed coaxially with the damping housing 10, and the damping shaft 20 and the damping housing 10 generate a damping force when rotating relatively, a shaft hole 21 is disposed in a middle portion of the damping shaft 20, a connecting shaft 50 is disposed in the shaft hole 21, the connecting shaft 50 is disposed coaxially with the damping shaft 20, a circumferential wall of the connecting shaft 50 is sleeved with a unidirectional bearing 30, an inner ring of the unidirectional bearing 30 is fixedly connected with the connecting shaft 50, an outer ring of the unidirectional bearing 30 is fixedly connected with the damping shaft 20, and a friction force between the damping housing 10 and the damping shaft 20 is greater than a rotational friction force of the inner ring of the unidirectional bearing 30.
Because the inner ring of the one-way bearing 30 can rotate in a certain direction and can not rotate in the other opposite direction, when the one-way damping gear rolls towards the direction in which the inner ring of the one-way bearing 30 can rotate, the connecting shaft 50 is in a fixed state, when the inner ring of the one-way bearing 30 rotates, because the friction force between the damping shell 10 and the damping shaft 20 is greater than the rotating friction force of the inner ring of the one-way bearing 30, when the inner ring of the one-way bearing 30 rotates, the outer ring of the one-way bearing 30, the damping shaft 20 and the damping shell 10 form a whole and rotate around the connecting shaft 50, because the damping shaft 20 and the damping shell 10 rotate in the same direction and do not rotate relatively, the damping force is not generated, and the rolling speed of the one-way damping gear is not influenced; on the contrary, when the unidirectional damping gear rolls towards the direction that the inner ring of the unidirectional bearing 30 can not rotate, at this time, the inner ring and the outer ring of the unidirectional bearing 30, the connecting shaft 50 and the damping shaft 20 form a whole body, and can not rotate, the damping shell 10 rotates around the damping shaft 20, namely, the damping shell 10 and the damping shaft 20 rotate relatively, damping force is generated, and therefore the rolling speed of the unidirectional damping gear is reduced.
Specifically, referring to fig. 4 to 7, the damping housing 10 is divided into two cavities by the damping shaft 20, and the two cavities are filled with damping oil, the surface of the damping shaft 20 is provided with a plurality of through holes 22, the plurality of through holes 22 are distributed around the axis of the damping shaft 20 at the same intervals, and the plurality of through holes 22 are sequentially arranged in a diffusion manner in the direction away from the axis of the damping shaft 20, the two cavities are communicated with each other by the through holes 22, two sides of the damping shaft 20 are respectively provided with a plurality of first convex rings 23 and second convex rings 24, the second convex rings 24 are arranged corresponding to the through holes 22, the first convex rings 23 and the second convex rings 24 are arranged in a staggered manner, one side of the damping housing 10 close to the first convex ring 23 is provided with a third convex ring 14, the third convex ring 14 is arranged corresponding to the through holes 22, a gap is formed between the first convex rings 23 and the third convex rings 14, one side of the damping housing 10 close to the second convex ring 24 is provided with a fourth convex ring 15, the fourth convex rings 15 and the second convex rings 24 are arranged in a staggered manner, and a gap exists between the fourth projecting ring 15 and the second projecting ring 24. More specifically, the second collar 24 has a first avoiding groove 241 corresponding to the through hole 22, and the third collar 14 has a second avoiding groove 141 corresponding to the through hole 22.
When the one-way damping gear rolls in the direction in which the inner ring of the one-way bearing 30 can rotate: because the inner ring of the one-way bearing 30 rotates, the one-way bearing 30, the damping shaft 20 and the damping shell 10 form a whole and rotate around the connecting shaft 50, namely the damping shaft 20 and the damping shell 10 rotate in the same direction and do not rotate relatively, the state of the damping oil in the two cavities is not changed, and therefore the damping force is not generated; on the contrary, when the one-way damping gear rolls in the direction in which the one-way bearing 30 cannot rotate: because the inner ring of the one-way bearing 30 cannot rotate, at the moment, the one-way bearing 30, the connecting shaft 50 and the damping shaft 20 form a whole and do not rotate, the damping shell 10 rotates around the damping shaft 20, namely, the damping shell 10 and the damping shaft 20 rotate relatively, the third convex ring 14 drives the damping oil in the gap to move towards the through hole 22 in the rotating process, and the damping shell 10 generates damping force due to the fact that the through hole 22 cannot enable the damping oil to pass through quickly, and the damping shell 10 is subjected to pressure provided by the damping oil, so that the rolling speed of the one-way damping gear is reduced. More damping oil can be stored in the first avoidance groove 241 and the second avoidance groove 141, when the second avoidance groove 141 on the third convex ring 14 rotates to the position of the through hole 22, more damping oil can flow to the through hole 22, and meanwhile, the area of the through hole 22 covered by the third convex ring 14 is reduced, so that the damping oil of the cavities on the two sides can flow through each other more quickly.
Specifically, referring to fig. 2, a sealing ring 40 is disposed at a connection position of the damping housing 10 and the damping shaft 20. The sealing ring 40 plays a role in sealing, and prevents damping oil in the sealing cavity from leaking.
Specifically, referring to fig. 5, one end of the shaft hole 21 is provided with a positioning groove 25, and the one-way bearing 30 is fixedly disposed in the positioning groove 25. The contact surface between the one-way bearing 30 and the damping shaft 20 is increased, so that the one-way bearing 30 is convenient to fix, the fixing effect can be enhanced, and the structural stability is improved.
Specifically, referring to fig. 2, 4 and 7, the damping housing 10 includes a rotating body 11 and an end cover 12, the ring gear 13 is disposed on a peripheral wall of the rotating body 11, the end cover 12 is disposed on one side of the rotating body 11, the end cover 12 and the damping shaft 20 are coaxially disposed, and the damping shaft 20 generates a damping force when relatively rotating with the rotating body 11 and the end cover 12. More specifically, the damping housing 10 is ultrasonically welded to the end cap 12.
During assembly, the damping shaft 20 is assembled with the rotating body 11, and then the end cover 12 is covered to close the end cover 12. The rotating main body 11 and the damping shaft 20 are connected to form a sealed cavity, so that the assembly is facilitated, and the disassembly and replacement of subsequent parts are facilitated. The ultrasonic welding efficiency is high, and intensity is high and the leakproofness is good.
The utility model provides an one-way damping gear, because the inner ring of one-way bearing can be pivoted in a certain direction, and can't be pivoted in another opposite direction, thereby when using, the connecting axle is in the stationary condition, when one-way damping gear can the pivoted direction roll towards one-way bearing inner ring, because the frictional force between damping casing and the damping axle is greater than the rotation frictional force of one-way bearing inner ring, when making the inner ring of one-way bearing rotate, the inner ring of one-way bearing, damping axle and damping casing form a whole, rotate round the connecting axle, because the damping axle is syntropy pivoted with the damping casing, do not take place relative rotation, so do not produce damping force, thus do not influence the rolling speed of one-way damping gear; on the contrary, when the unidirectional damping gear rolls towards the direction that the inner ring of the unidirectional bearing cannot rotate, the inner ring and the outer ring of the unidirectional bearing, the connecting shaft and the damping shaft form a whole body at the moment, the unidirectional bearing cannot rotate, the damping shell rotates around the damping shaft, namely, the damping shell and the damping shaft rotate relatively, damping force is generated, and therefore the rolling speed of the unidirectional damping gear is reduced. When product and one-way damping gear cooperation use: the product is fixedly connected with the connecting shaft, the opening direction of the product is the direction in which the inner ring of the one-way bearing can rotate, the closing direction of the product is the direction in which the inner ring of the one-way bearing cannot rotate, and when the product is opened, the one-way damping gear does not generate damping force, so that the opening speed of the product cannot be reduced; when the product is closed, the one-way damping gear generates damping force, so that the closing speed of the product is reduced, the impact when the product is closed is reduced, and the noise is reduced to protect the product.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides an one-way damping gear, its characterized in that, includes the damping casing, the perisporium of damping casing is equipped with annular ring gear, the damping casing internal rotation is equipped with the damping axle, the damping axle sets up with the damping casing is coaxial, just produce damping force when damping axle rotates with the damping casing relatively, the shaft hole has been seted up at the middle part of damping axle, be equipped with the connecting axle in the shaft hole, the connecting axle sets up with the damping axle is coaxial, the perisporium cover of connecting axle is equipped with one-way bearing, one-way bearing's inner ring and connecting axle fixed connection, one-way bearing's outer loop and damping axle fixed connection, frictional force between damping casing and the damping axle is greater than the rotatory frictional force of one-way bearing inner ring.
2. The unidirectional damping gear according to claim 1, wherein the damping housing is divided into two cavities by a damping shaft, and damping oil is filled in both of the two cavities, a plurality of through holes are formed in the surface of the damping shaft, the plurality of through holes are distributed around the axis of the damping shaft at equal intervals, the plurality of through holes are sequentially arranged in a manner of diffusing away from the axis of the damping shaft, the two cavities are communicated with each other by the through holes, a plurality of first convex rings and second convex rings are respectively arranged on both sides of the damping shaft, the second convex rings are arranged corresponding to the through holes, the first convex rings and the second convex rings are arranged in a staggered manner, a third convex ring is arranged on one side of the damping housing close to the first convex ring, the third convex ring is arranged corresponding to the through holes, a gap exists between the first convex ring and the third convex ring, and a fourth convex ring is arranged on one side of the damping housing close to the second convex ring, the fourth convex rings and the second convex rings are arranged in a staggered mode, and gaps exist between the fourth convex rings and the second convex rings.
3. The unidirectional damping gear of claim 2, wherein the second collar has a first anti-backlash groove at a position corresponding to the through hole, and the third collar has a second anti-backlash groove at a position corresponding to the through hole.
4. The unidirectional damping gear of claim 1, wherein a seal ring is disposed at a junction of the damping housing and the damping shaft.
5. The unidirectional damping gear of claim 1, wherein a positioning groove is formed at one end of the shaft hole, and the unidirectional bearing is fixedly arranged in the positioning groove.
6. The unidirectional damping gear of claim 1, wherein the damping housing comprises a rotating body and an end cap, the ring gear is disposed on a circumferential wall of the rotating body, the end cap is disposed at one side of the rotating body, the end cap and the damping shaft are coaxially disposed, and the damping shaft generates a damping force when the rotating body and the end cap rotate relative to each other.
7. The unidirectional damping gear of claim 6, wherein the damping housing is ultrasonically welded to the end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220493741.8U CN217205984U (en) | 2022-03-09 | 2022-03-09 | One-way damping gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220493741.8U CN217205984U (en) | 2022-03-09 | 2022-03-09 | One-way damping gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217205984U true CN217205984U (en) | 2022-08-16 |
Family
ID=82754977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220493741.8U Active CN217205984U (en) | 2022-03-09 | 2022-03-09 | One-way damping gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217205984U (en) |
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2022
- 2022-03-09 CN CN202220493741.8U patent/CN217205984U/en active Active
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