CN215861616U - Shock attenuation powder metallurgy gear - Google Patents
Shock attenuation powder metallurgy gear Download PDFInfo
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- CN215861616U CN215861616U CN202121894174.9U CN202121894174U CN215861616U CN 215861616 U CN215861616 U CN 215861616U CN 202121894174 U CN202121894174 U CN 202121894174U CN 215861616 U CN215861616 U CN 215861616U
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- damping
- shock
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Abstract
The utility model discloses a shock-absorbing powder metallurgy gear, belonging to the technical field of powder metallurgy, which is characterized by comprising an outer gear body, wherein the front side and the rear side of the outer gear body are fixedly connected with reinforcing supporting wheel sleeves, the inner side walls of the two reinforcing supporting wheel sleeves are sequentially and fixedly connected with a rubber ring and a reinforcing wheel hub from outside to inside, the front end surfaces of the two reinforcing wheel hubs are provided with a plurality of groups of circular shock-absorbing holes in a penetrating way, a side shock-absorbing groove is arranged between the circular shock-absorbing holes in a penetrating way, the inner side wall of the side shock-absorbing groove is provided with a plurality of uniformly distributed buffering angle grooves, the inner side wall of the side shock-absorbing groove is fixedly connected with an inner shock-absorbing gear body, the outer side walls of the inner shock-absorbing gear body and a buffering lug and the inner side walls of the side shock-absorbing groove and the buffering angle grooves are both arc-shaped, so that the gear has the effect of buffering and shock absorption, the effects of shock absorption and noise reduction are achieved by the elliptical shock-absorbing holes and the circular shock-absorbing holes, the weight of the gear is reduced, and the production cost of the gear is reduced.
Description
Technical Field
The utility model relates to the technical field of powder metallurgy, in particular to a damping powder metallurgy gear.
Background
The powder metallurgy gear is difficult to be counted separately in the whole powder metallurgy part, but the proportion of the powder metallurgy gear in various machines, automobiles and motorcycles is far larger than that of the powder metallurgy part in other fields by weight or part quantity.
However, the existing powder metallurgy gear has poor noise reduction and vibration reduction performance and low impact load resistance, so that the gear is easy to break, and the service life of the gear is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problems and provides a damping powder metallurgy gear to solve the problems.
The utility model discloses a damping powder metallurgy gear, which comprises an outer gear body, wherein reinforcing supporting wheel sleeves are fixedly connected to the front side and the rear side of the outer gear body, the inner side walls of the two reinforcing supporting wheel sleeves are fixedly connected with a rubber ring and a reinforcing wheel hub from outside to inside in sequence, the rubber ring and the reinforcing wheel hub are fixedly connected with the outer gear body, a plurality of groups of circular damping holes are formed in the front end surfaces of the two reinforcing wheel hubs in a penetrating mode, a side damping groove is formed between the circular damping holes in a penetrating mode, a plurality of uniformly distributed buffering angle grooves are formed in the inner side wall of the side damping groove, an inner damping gear body is fixedly connected to the inner side wall of the side damping groove, and a plurality of uniformly distributed elliptical damping holes are formed in the front end surface of the inner damping gear body in a penetrating mode.
In order to enable the gear to have the effect of buffering and damping, the damping powder metallurgy gear is preferably used as the damping powder metallurgy gear, the outer side wall of the inner damping gear body is fixedly connected with a plurality of uniformly distributed buffering convex blocks, and the outer side walls of the buffering convex blocks are respectively and fixedly connected with the inner side walls of the buffering angular grooves.
In order to enhance the impact load of the gear and make the inner damping gear body convenient to decompose the bearing capacity of the gear, the damping powder metallurgy gear is preferably used as the damping powder metallurgy gear, and the thickness of the inner damping gear body is larger than the sum of the thicknesses of the two reinforcing hubs and the outer gear body.
In order to conveniently install the driving bearing in the shaft hole, it is preferable that the damping powder metallurgy gear of the present invention is configured such that a plurality of meshing teeth are uniformly distributed on an outer side wall of the outer gear body, and the shaft hole is formed through a plurality of the elliptical damping holes.
In order to facilitate the rotation of the driving gear, as a preferable damping powder metallurgy gear, the upper side and the lower side of the inner side wall of the shaft hole are both provided with key grooves.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the shock-absorbing powder metallurgy gear, the front side and the rear side of the outer gear body are fixedly connected with the reinforcing wheel sleeve and the reinforcing wheel hub, the rubber ring is positioned between the reinforcing wheel hub and the reinforcing wheel sleeve, the rubber ring enables the outer gear body and the reinforcing wheel hub to have a shock-absorbing effect, the reinforcing wheel hub enables the rigidity and bearing strength of the outer gear body to be improved, in a traditional system with large impact load, the gear is not prone to crack, and the service life of the gear is guaranteed;
2. this kind of shock attenuation powder metallurgy gear, the bearing rotates, and damping gear body and external gear body gear rotate in further convenient drive, and the lateral wall of interior damping gear body and buffering lug and the inside wall of side damping chute and buffering corner groove all are the arc form, make the gear have the shock attenuation effect of buffering, oval damping hole and circular damping hole not only play the effect of shock attenuation and noise reduction, simultaneously, make the weight of gear reduce, have reduced the manufacturing cost of gear.
Drawings
Fig. 1 is an overall structural view of a vibration-damping powder metallurgy gear according to the present invention.
In the figure, 1, an external gear body; 101. reinforcing a supporting wheel sleeve; 102. a reinforcing hub; 103. a rubber ring; 104. a circular shock absorbing hole; 105. a lateral damping groove; 106. a buffer corner groove; 2. an inner damper gear body; 201. an elliptical shock absorbing hole; 202. a shaft hole; 203. a keyway; 204. the bump is buffered.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the front and rear sides of the external gear body 1 are fixedly connected with the reinforced wheel sleeve 101 and the reinforced wheel hub 102, the rubber ring 103 is located between the reinforced wheel hub 102 and the reinforced wheel sleeve 101, the rubber ring 103 enables the external gear body 1 and the reinforced wheel hub 102 to have a shock absorption effect, the reinforced wheel hub 102 enables the rigidity and bearing strength of the external gear body 1 to be improved, in a traditional system with a large impact load, the gear is not prone to crack, the service life of the gear is ensured, the front end surfaces of the external gear body 1 and the reinforced wheel hub 102 are provided with side shock absorption grooves 105 in a penetrating manner, the inner sides of the side shock absorption grooves 105 are provided with a plurality of buffer corner grooves 106, the inner side walls of the side shock absorption grooves 105 and the buffer corner grooves 106 are respectively and fixedly connected with the internal shock absorption gear body 2 and the buffer bumps 204, the front end surface of the internal shock absorption gear body 2 is provided with a shaft hole 202 and a key groove 203 in a penetrating manner, the shaft hole 202 and the key groove 203 are convenient for fixing and positioning and mounting a bearing, the bearing rotates, damping gear body 2 and external gear body 1 gear rotate in further conveniently driving, and the lateral wall of interior damping gear body 2 and buffering boss 204 and the inside wall of side damping slot 105 and buffering corner groove 106 all are the arc form, make the gear have the absorbing effect of buffering, oval damping hole 201 and circular damping hole 104 not only play the effect of shock attenuation and noise reduction, and simultaneously, make the weight of gear reduce, the manufacturing cost of gear has been reduced.
The lateral walls of the inner damping gear body 2 and the buffering convex block 204 are respectively fixedly connected with the lateral damping grooves 105 and the inner side walls of the buffering corner grooves 106, the lateral walls of the inner damping gear body 2 and the buffering convex block 204 and the lateral damping grooves 105 and the inner side walls of the buffering corner grooves 106 are both arc-shaped, and therefore the gear is further enabled to play a role in buffering and damping.
The thickness of the inner damping gear body 2 is larger than the sum of the thicknesses of the reinforcing hub 102 and the outer gear body 1, so that the impact load of the gear is further enhanced, and the bearing capacity of the gear is conveniently decomposed by the inner damping gear body 2.
By providing the shaft hole 202, a drive bearing is further easily mounted in the shaft hole 202.
Through the key groove 203, the key groove 203 is further fixed and positioned to install a bearing, so that the gear is convenient to drive to rotate.
The working principle and the using process of the utility model are as follows: firstly, the front side and the rear side of the external gear body 1 are fixedly connected with the reinforcing wheel sleeve 101 and the reinforcing wheel hub 102, the rubber ring 103 is positioned between the reinforcing wheel hub 102 and the reinforcing wheel sleeve 101, the rubber ring 103 enables the shock absorption effect between the external gear body 1 and the reinforcing wheel hub 102, the reinforcing wheel hub 102 enables the rigidity performance and the bearing strength of the external gear body 1 to be improved, in a traditional system with larger impact load, the gear is not easy to crack, the service life of the gear is ensured, the inner side walls of the side shock absorption groove 105 and the buffer corner groove 106 are respectively and fixedly connected with the inner shock absorption gear body 2 and the buffer bump 204, the front end surface of the inner shock absorption gear body 2 is provided with a shaft hole 202 and a key groove 203 in a penetrating way, the shaft hole 202 and the key groove 203 are convenient for fixing and positioning and installing the bearing, the bearing rotates, and further facilitates the driving of the inner shock absorption gear body 2 and the external gear body 1 to rotate, and the outer side walls of the inner damping gear body 2 and the damping convex block 204 and the inner side walls of the side damping groove 105 and the damping corner groove 106 are both arc-shaped, so that the gear has a damping effect, the elliptic damping holes 201 and the circular damping holes 104 not only play a damping and noise reducing effect, but also reduce the weight of the gear and reduce the production cost of the gear.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A shock attenuation powder metallurgy gear, includes outer gear body (1), its characterized in that: the front side and the rear side of the outer gear body (1) are fixedly connected with reinforced wheel sleeves (101), the inner side walls of the reinforced wheel sleeves (101) are sequentially and fixedly connected with rubber rings (103) and reinforced wheel hubs (102) from outside to inside, the rubber ring (103) and the reinforcing hubs (102) are fixedly connected with the outer gear body (1), a plurality of groups of circular damping holes (104) are arranged on the front end surfaces of the two reinforcing hubs (102) in a penetrating way, a side damping groove (105) is arranged between the circular damping holes (104) in a penetrating way, the inner side wall of the side damping groove (105) is provided with a plurality of buffer angle grooves (106) which are uniformly distributed, the inner side wall of the side damping groove (105) is fixedly connected with an inner damping gear body (2), the front end face of the inner damping gear body (2) is provided with a plurality of evenly distributed elliptical damping holes (201) in a penetrating mode.
2. A vibration absorbing powder metallurgy gear according to claim 1, wherein: the outer side wall of the inner damping gear body (2) is fixedly connected with a plurality of buffer convex blocks (204) which are uniformly distributed, and the outer side walls of the buffer convex blocks (204) are fixedly connected with the inner side walls of the buffer angular grooves (106) respectively.
3. A vibration absorbing powder metallurgy gear according to claim 1, wherein: the thickness of the inner damping gear body (2) is larger than the sum of the thicknesses of the two reinforcing hubs (102) and the outer gear body (1).
4. A vibration absorbing powder metallurgy gear according to claim 1, wherein: a plurality of meshing teeth which are uniformly distributed are arranged on the outer side wall of the outer gear body (1), and a plurality of shaft holes (202) penetrate through the oval shock absorption holes (201).
5. A vibration absorbing powder metallurgy gear according to claim 4, wherein: and key grooves (203) are formed in the upper side and the lower side of the inner side wall of the shaft hole (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121894174.9U CN215861616U (en) | 2021-08-13 | 2021-08-13 | Shock attenuation powder metallurgy gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121894174.9U CN215861616U (en) | 2021-08-13 | 2021-08-13 | Shock attenuation powder metallurgy gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861616U true CN215861616U (en) | 2022-02-18 |
Family
ID=80238820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121894174.9U Active CN215861616U (en) | 2021-08-13 | 2021-08-13 | Shock attenuation powder metallurgy gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861616U (en) |
-
2021
- 2021-08-13 CN CN202121894174.9U patent/CN215861616U/en active Active
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