CN216895638U - Wear-resisting reliable bearing gear integration decelerator - Google Patents
Wear-resisting reliable bearing gear integration decelerator Download PDFInfo
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- CN216895638U CN216895638U CN202220770072.4U CN202220770072U CN216895638U CN 216895638 U CN216895638 U CN 216895638U CN 202220770072 U CN202220770072 U CN 202220770072U CN 216895638 U CN216895638 U CN 216895638U
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Abstract
The utility model discloses a wear-resistant and reliable bearing and gear integrated speed reducer which comprises a first gear, a second gear and a bearing, wherein a groove with the same tooth shape as that of the second gear is formed in the surface of an inner hole of the first gear, grooves are uniformly formed in the inner hole of the second gear, the diameter of the inner hole of the second gear is the same as the outer diameter of the bearing, protrusions are uniformly formed in the outer circular surface of the bearing, a spiral groove is formed in the inner hole of the bearing and used for storing lubricating oil, when the device runs, relative motion is generated between the bearing and a shaft to generate heat, so that the lubricating oil in the hole of an oil-containing bearing seeps out, the lubricating oil stored in the spiral groove fills the contact surface between the shaft and the bearing, the lubrication between the device and the shaft is enhanced, and the wear resistance and the reliability of the device are improved.
Description
Technical Field
The utility model belongs to the technical field of speed reducing devices, and relates to a wear-resistant and reliable bearing and gear integrated speed reducing device.
Background
The gear is an important transmission part in the field of mechanical transmission, has the advantages of high efficiency, compact structure, stable transmission ratio and the like, and is widely applied to mechanical devices such as vehicles, machine tools and the like. The speed reduction transition gear is arranged between the input gear and the output gear, and plays the roles of speed reduction and torque increment and intermediate transmission or a transition transmission device which is increased in order to obtain gear output in the opposite direction. The transmission ratio of the gears depends on the ratio of the number of the driving gears to the number of the driven gears, the smaller the number of the driving gears is, the larger the number of the driven gears is, the larger the transmission ratio is obtained by the gear set, and the larger the reduction ratio of the gear set is, the larger the torque increase ratio is.
In order to realize the purpose of speed reduction transmission of the gear, a small gear with less teeth is set as a driving gear, and a large gear with more teeth is set as a driven gear to form a speed reduction gear set. However, if the reduction ratio is too large, a driven gear with a larger number of teeth is required, resulting in an oversized whole reduction transmission mechanism; in order to realize a larger reduction ratio in a compact structure, a transition gear set is required to be arranged in a driving gear and a driven gear, namely, two gears with different tooth numbers are arranged on the same shaft, the two gears rotate synchronously with the shaft, the gear with more tooth numbers in the driving gear and the transition gear set is meshed with a gear wheel with less tooth numbers in the transition gear set, and the gear with less tooth numbers in the transition gear set is meshed with the driven gear, so that multi-stage reduction is realized, and the purpose of increasing the reduction ratio is achieved.
In the prior art, the transition speed reducer does not have the function of power input or power output, so that no power is transmitted between the transition speed reducer and the transition speed reducer shaft, the transition speed reducer shaft only has the function of fixing the transition speed reducer, and the transition speed reducer shaft and the speed reducer shell are connected and fixed by arranging a bearing on the transition speed reducer shaft, so that the purpose of fixing the transition speed reducer is achieved, and the problems of poor wear resistance, poor lubricating property, low reliability and short service life of the bearing in the prior art exist.
Accordingly, there is a need for improvements and developments in the art.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model aims to provide a wear-resistant and reliable bearing and gear integrated speed reducer, and aims to solve the problems that a bearing is not wear-resistant, the lubricating performance is poor and the service life is short in the prior art.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the wear-resistant and reliable bearing and gear integrated speed reducer comprises a first gear, a second gear and a bearing, wherein the first gear is a large gear with a plurality of teeth, a first inner hole is formed in the center of the first gear, a first groove which is consistent with the teeth of the second gear is formed in the surface of the first inner hole and used for installing the second gear, the second gear is a small gear with a small number of teeth, a second inner hole is formed in the center of the second gear, a second groove is uniformly formed in the second inner hole, the diameter of the second inner hole is the same as the outer diameter of the bearing and used for installing the bearing, bulges are uniformly arranged on the outer circular surface of the bearing, the number, the axial length and the shape of the bulges are consistent with the number, the axial length and the shape of the second groove of the second inner hole, a third inner hole is formed in the center of the bearing and used for installing the shaft, and spiral grooves are formed in the third inner hole surface of the bearing, for storing lubricating oil.
Preferably, the ratio of the axial length of the second gear to the axial length of the first gear is 4 to 6.
Preferably, the axial length of the second gear is the same as the axial length of the bearing.
Preferably, the number of the bulges on the outer circular surface of the bearing is 6-12.
Preferably, the ratio of the axial length of the projection on the outer circular surface of the bearing to the axial length of the bearing is 0.5 to 0.8.
The beneficial effects are that: according to the wear-resistant reliable bearing and gear integrated speed reducing device, the first inner hole is formed in the center of the first gear, the first groove with the same tooth shape as the second gear is formed in the surface of the first inner hole, the second gear can be firmly embedded into the first inner hole of the first gear, reliable connection is established between the first gear and the second gear, and synchronous rotation of the first gear and the second gear is achieved; the center of second gear is provided with the second hole, evenly be provided with the second recess on the second hole, the diameter of second hole is the same with the external diameter of bearing, evenly be provided with the arch on the outer disc of bearing, bellied quantity, axial length and shape with quantity, axial length and the shape of the second recess of second hole are unanimous, can firmly imbed the bearing among the second hole of second gear, the third hole of bearing is provided with the helicla flute of storing lubricating oil, can strengthen the lubrication of contact surface between axle and the bearing, improves the wear resistance and the reliability of device.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the wear-resistant and reliable bearing and gear integrated speed reducing device of the utility model.
Detailed Description
The utility model provides a wear-resistant and reliable bearing and gear integrated speed reducer, and the utility model is further described in detail below in order to make the purpose, technical scheme and effect of the utility model clearer and clearer. 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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a preferred embodiment of the wear-resistant and reliable bearing and gear integrated speed reducer of the present invention.
The utility model provides a wear-resistant and reliable bearing and gear integrated speed reducer which comprises a first gear 1, a second gear 2 and a bearing 3.
The first gear 1 is a large gear with a large number of teeth, a first inner hole 11 is formed in the center of the first gear 1, and a first groove 12 with the same tooth form as the second gear 2 is formed in the surface of the first inner hole 11 and used for mounting the second gear 2.
The second gear 2 is a pinion with a small number of teeth, a second inner hole 21 is formed in the center of the second gear 2, second grooves 22 are uniformly formed in the second inner hole 21, and the diameter of the second inner hole 21 is the same as the outer diameter of the bearing 3 and used for installing the bearing 3.
The outer circular surface of the bearing 3 is uniformly provided with protrusions 31, and the number, the axial length and the shape of the protrusions 31 are consistent with those of the second grooves 22 of the second inner hole 21.
The center of the bearing 3 is provided with a third inner hole 32 for mounting a shaft.
The third inner hole 32 surface of the bearing 3 is provided with a spiral groove 33 for storing lubricating oil.
The ratio of the axial length of the second gear 2 to the axial length of the first gear 1 is 5, the axial length of the second gear 2 is the same as the axial length of the bearing 3, the number of the protrusions 31 on the outer circular surface of the shaft 3 is 8, and the ratio of the axial length of the protrusions 31 on the outer circular surface of the bearing 3 to the axial length of the bearing 3 is 0.8.
The working process of the utility model is as follows:
in the using process, the wear-resistant and reliable bearing and gear integrated speed reducing device is formed by assembling a first gear 1, a second gear 2 and a bearing 3.
When the second gear 2 is inserted into the first gear 1, the tooth profile of the second gear 2 is aligned with the first groove 12 of the first gear 1, so that the second gear 2 can be firmly embedded into the inner hole 11 of the first gear 1, reliable connection is established between the first gear and the second gear, and synchronous rotation of the first gear and the second gear is realized; simultaneously, the bearing 3 is inserted into the inner hole 21 of the second gear 2, the protrusion 31 on the outer circular surface of the bearing 3 is aligned with the second groove 22 of the second gear 2, and the bearing 3 is firmly embedded into the second inner hole 21 of the second gear 2; at the same time, the shaft is inserted into the third bore 32 of the bearing.
When the bearing and gear integrated speed reducing device with wear resistance and reliability provided by the utility model is installed in a speed reducer, the first gear 1 is meshed with a driving gear to play a first-stage speed reducing role, the second gear 2 is meshed with a driven gear to play a second-stage speed reducing role, a shaft is installed in an inner hole 31 of a bearing 3 and is directly fixed on a shell, when the device runs, the first gear 1, the second gear 2 and the bearing 3 rotate together, the shaft is fixed with the shell, relative motion is generated between the bearing 3 and the shaft to generate heat, so that lubricating oil in oil-containing bearing pores seeps out, a lubricating oil storage spiral groove 33 is arranged on a third inner hole 32 surface of the bearing 3 to fill up a contact surface between the shaft and the bearing 3, so that the lubrication between the device and the shaft is enhanced, the friction between the device and the shaft is reduced, and the wear resistance and reliability of the device are improved, the service life of the device is prolonged.
In summary, the wear-resistant and reliable bearing and gear integrated speed reduction device comprises a first gear, a second gear and a bearing, wherein a groove with the same tooth shape as that of the second gear is formed in the surface of an inner hole of the first gear, grooves are uniformly formed in an inner hole of the second gear, the diameter of the inner hole of the second gear is the same as that of the bearing, protrusions are uniformly formed in the outer circular surface of the bearing, and a spiral groove is formed in the inner hole of the bearing and used for storing lubricating oil.
It is to be understood that the utility model is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the utility model as defined by the appended claims.
Claims (1)
1. A wear-resistant and reliable bearing and gear integrated speed reducer comprises a first gear, a second gear and a bearing, and is characterized in that the first gear is a large gear with many teeth, a first inner hole is formed in the center of the first gear, a first groove consistent with the tooth form of the second gear is formed in the surface of the first inner hole, the second gear is a small gear with few teeth, a second inner hole is formed in the center of the second gear, a second groove is uniformly formed in the second inner hole, the diameter of the second inner hole is the same as the outer diameter of the bearing, protrusions are uniformly arranged on the outer circular surface of the bearing, the number, the axial length and the shape of the protrusions are consistent with the number, the axial length and the shape of the second groove of the second inner hole, a third inner hole is formed in the center of the bearing, spiral grooves are formed in the third inner hole surface of the bearing, and the ratio of the axial length of the second gear to the axial length of the first gear is 4-6, the axial length of the second gear is the same as that of the bearing, the number of the bulges on the outer circular surface of the bearing is 6-12, and the ratio of the axial length of the bulges on the outer circular surface of the bearing to the axial length of the bearing is 0.5-0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220770072.4U CN216895638U (en) | 2022-04-06 | 2022-04-06 | Wear-resisting reliable bearing gear integration decelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220770072.4U CN216895638U (en) | 2022-04-06 | 2022-04-06 | Wear-resisting reliable bearing gear integration decelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216895638U true CN216895638U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220770072.4U Active CN216895638U (en) | 2022-04-06 | 2022-04-06 | Wear-resisting reliable bearing gear integration decelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216895638U (en) |
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2022
- 2022-04-06 CN CN202220770072.4U patent/CN216895638U/en active Active
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