CN213298761U - Reduction gearbox convenient to assemble - Google Patents
Reduction gearbox convenient to assemble Download PDFInfo
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- CN213298761U CN213298761U CN202021761309.XU CN202021761309U CN213298761U CN 213298761 U CN213298761 U CN 213298761U CN 202021761309 U CN202021761309 U CN 202021761309U CN 213298761 U CN213298761 U CN 213298761U
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- reduction gearbox
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- output shaft
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Abstract
The utility model relates to a reducing gear box convenient to assembly. The reduction gearbox convenient to assemble is characterized by comprising a box body and a reduction assembly, wherein the reduction assembly comprises a first bearing, a limiting sleeve, a second bearing, a reduction gearbox output shaft and a linkage gear, the box body is provided with an inner cavity and a reduction gearbox output shaft fixing hole communicated with the inner cavity, the first bearing, the limiting sleeve and the second bearing are sleeved and fixed on the reduction gearbox output shaft and fixed in the reduction gearbox output shaft fixing hole, the linkage gear is fixed at the inner end of the reduction gearbox output shaft and located in the inner cavity, the reduction gearbox output shaft fixing hole sequentially comprises a hole section, a hole section and a hole section from outside to inside, the first bearing is fixed in the hole section, the second bearing is fixed in the hole section, and the limiting sleeve is fixed in the hole section and limited between the first bearing and the second bearing. The utility model has the advantages of can reduce the assembly process in order to improve assembly efficiency, be convenient for reducing gear box output shaft fixed orifices processing.
Description
Technical Field
The utility model relates to a reducing gear box convenient to assembly.
Background
As shown in fig. 1, a speed reduction assembly is required to be assembled in the reduction gearbox, the reduction gearbox body 1 comprises an inner cavity 11 for accommodating the speed reduction assembly and a box cover for sealing the inner cavity, the speed reduction assembly comprises an input shaft assembly, a transmission shaft assembly and an output shaft assembly, the input shaft assembly comprises a motor output shaft, the transmission shaft assembly comprises a transmission shaft and a speed reduction gear fixed on the transmission shaft, and the output shaft assembly comprises a reduction gearbox output shaft 12, a linkage gear 13 fixed on the reduction gearbox output shaft, an upper bearing 14 and a lower bearing 15. The box body is provided with an inner cavity 11 for accommodating a reduction gear and a linkage gear, a motor output shaft fixing hole 18 for fixing a motor output shaft, two transmission shaft fixing holes 19 for fixing transmission shafts and a reduction gearbox output shaft fixing hole 16 for fixing a reduction gearbox output shaft 12 are formed in the box body, and the motor output shaft fixing hole 18 and the reduction gearbox output shaft fixing hole 15 are respectively located on one of two opposite sides of the inner cavity.
Wherein, the reduction box output shaft fixing hole 16 is provided with a bulge 17 extending inwards to prevent the axial surface of the upper bearing 14 from contacting with the axial surface of the lower bearing 15.
In the installation process of the reduction gearbox, the output shaft assembly and the transmission shaft assembly are pressed and mounted firstly, and then the reduction gearbox is fixed with the motor, so that the motor output shaft of the input shaft assembly is meshed with the reduction gear on the transmission shaft. When the output shaft assembly is pressed, the bearings need to be pressed from two ends of the fixing hole of the output shaft of the reduction gearbox respectively, and the assembly efficiency is low.
Disclosure of Invention
The utility model aims at providing an assembly efficiency is high reducing gear box.
In order to achieve the above purpose, the utility model adopts the following scheme: the reduction gearbox convenient to assemble is characterized by comprising a box body and a reduction assembly, wherein the reduction assembly comprises a first bearing, a limiting sleeve, a second bearing, a reduction gearbox output shaft and a linkage gear, the box body is provided with an inner cavity and a reduction gearbox output shaft fixing hole communicated with the inner cavity, the first bearing, the limiting sleeve and the second bearing are sleeved and fixed on the reduction gearbox output shaft and fixed in the reduction gearbox output shaft fixing hole, the linkage gear is fixed at the inner end of the reduction gearbox output shaft and located in the inner cavity, the reduction gearbox output shaft fixing hole sequentially comprises a hole section, a hole section and a hole section from outside to inside, the first bearing is fixed in the hole section, the second bearing is fixed in the hole section, and the limiting sleeve is fixed in the hole section and limited between the first bearing and the second bearing.
When the reduction gearbox is assembled, the first bearing, the limiting sleeve and the second bearing are sleeved on the reduction gearbox output shaft, then the reduction gearbox output shaft with the first bearing, the limiting sleeve and the second bearing extends into the reduction gearbox output shaft fixing hole, and finally the reduction gearbox output shaft is assembled in the reduction gearbox output shaft fixing hole and matched with the linkage gear placed in the inner cavity. Because the position of stop collar restriction first bearing and second bearing does not have the bellied hindrance of reducing gear box output shaft fixed orifices inwards extending, and first bearing and second bearing homoenergetic once only carry out the pressure equipment from the outer end of reducing gear box output shaft fixed orifices, reduce the assembly process in order to improve assembly efficiency. The protrusions extending towards the inner side of the output shaft fixing hole of the reduction gearbox are not arranged, so that the processing of the output shaft fixing hole of the reduction gearbox is facilitated. The utility model has the advantages of can reduce the assembly process in order to improve assembly efficiency, be convenient for reducing gear box output shaft fixed orifices processing.
Preferably, the outer diameter of the upper end of the limiting sleeve is smaller than the inner diameter of the first bearing outer ring, and the outer diameter of the lower end of the limiting sleeve is smaller than the inner diameter of the second bearing outer ring. The limiting sleeve can reduce the rotating resistance of the output shaft of the reduction gearbox and improve the performance of the reduction gearbox.
Preferably, the inner diameter of the first hole section is larger than that of the second hole section, the inner diameter of the second hole section is larger than that of the third hole section, and the first hole section and the second hole section form a step surface to support the first bearing. The position of the step surface, which is provided with the first bearing, prevents the first bearing from continuously moving downwards after being pressed and installed in place. The inner diameter of the hole second section is larger than that of the hole third section, and when the first bearing, the limiting sleeve and the second bearing are sleeved on the output shaft of the reduction gearbox and are ready for press mounting, the second bearing can be located in the hole second section.
Preferably, a clamp spring groove is arranged in one section of the hole. A clamp spring can be arranged in the clamp spring groove to prevent the first bearing from being separated in the using process of the reduction gearbox.
Preferably, the output shaft of the reduction gearbox comprises a first shaft section, a second shaft section, a third shaft section and a fourth shaft section from outside to inside, the first bearing is sleeved on the outer side of the first shaft section, the limiting sleeve is sleeved on the outer side of the second shaft section, the second bearing is sleeved on the outer side of the third shaft section, the linkage gear is sleeved on the outer side of the fourth shaft section, the outer diameter of the first shaft section is larger than that of the second shaft section, and the outer diameter of the second shaft section is larger than that of the third shaft section. A step surface is formed between the first shaft section and the second shaft section to limit the position of the limiting sleeve, and a step surface is formed between the second shaft section and the third shaft section to limit the position of the second bearing.
The utility model has the advantages of can reduce the assembly process in order to improve assembly efficiency, be convenient for reducing gear box output shaft fixed orifices processing.
Drawings
FIG. 1 is a schematic structural diagram of a conventional gearbox;
fig. 2 is a schematic structural view of the present invention;
fig. 3 is another schematic structural diagram of the present invention.
Detailed Description
As shown in figures 2 to 3, the utility model discloses a reduction gearbox convenient to assemble, which comprises a box body 2 and a reduction assembly, wherein the reduction assembly comprises a first bearing 5, a stop collar 6, a second bearing 7, a reduction gearbox output shaft 8 and a linkage gear 9, the box body 2 is provided with an inner cavity 4 and a reduction gearbox output shaft fixing hole 3 communicated with the inner cavity 4, the first bearing 5, the stop collar 6 and the second bearing 7 are sleeved and fixed on the reduction gearbox output shaft 8 and fixed in the reduction gearbox output shaft fixing hole 3, the reduction gearbox output shaft 8 extends out of the reduction gearbox 2, the linkage gear 9 is fixed at the inner end of the reduction gearbox output shaft 8 and is positioned in the inner cavity 4, the output shaft fixing hole 3 of the reduction gearbox comprises a hole section 31, a hole section 32 and a hole section 33 from outside to inside in sequence, a first bearing 5 is fixed in the hole section 31, a second bearing 7 is fixed in the hole section 33, and a limiting sleeve 6 is fixed in the hole section 32 and limited between the first bearing 5 and the second bearing 7. Wherein, the external diameter of the upper end of the stop collar 6 is smaller than the internal diameter of the outer ring of the first bearing 5, and the external diameter of the lower end of the stop collar 6 is smaller than the internal diameter of the outer ring of the second bearing 7.
Wherein, the inner diameter of the first hole section 31 is larger than that of the second hole section 32, the inner diameter of the second hole section 32 is larger than that of the third hole section 33, and the first hole section 31 and the second hole section 32 form a step surface to support the first bearing 5. One side of the hole section 31, which is far away from the step surface, is provided with a clamp spring groove 311, and a clamp spring can be arranged in the clamp spring groove to prevent the first bearing from falling off when the reduction gearbox is used.
The output shaft 8 of the reduction gearbox comprises a shaft section 81, a shaft section 82, a shaft section 83 and a shaft section 84 from outside to inside, the first bearing 5 is sleeved on the outer side of the shaft section 81, the limiting sleeve 6 is sleeved on the outer side of the shaft section 82, the second bearing 7 is sleeved on the outer side of the shaft section 83, the linkage gear 9 is sleeved on the outer side of the shaft section 84, the outer diameter of the shaft section 81 is larger than that of the shaft section 82, and the outer diameter of the shaft section 82 is larger than that of the shaft section 83.
As shown in fig. 1 to 3, the conventional gear box is provided with two transmission shaft fixing holes 19 and a motor output shaft fixing hole 18. The utility model discloses also be equipped with two transmission shaft fixed orificess 21 and motor output shaft fixed orifices 22, motor output shaft fixed orifices 22 and 3 coaxial settings of reducing gear box output shaft fixed orifices.
When the utility model is assembled, the positioning seat of the reduction gearbox assembling device passes through the motor output shaft fixing hole of the box body to extend into the inner cavity of the box body, and simultaneously the linkage gear is put into the inner cavity from the opening of the inner cavity and the guide post of the positioning seat extends into the linkage gear; and then sleeving the first bearing, the limiting sleeve and the second bearing on the output shaft of the reduction gearbox, and finally assembling the output shaft of the reduction gearbox into the fixing hole of the output shaft of the reduction gearbox.
The utility model has the advantages of can reduce the assembly process in order to improve assembly efficiency, be convenient for reducing gear box output shaft fixed orifices processing.
Claims (5)
1. The reduction gearbox convenient to assemble is characterized by comprising a box body and a reduction assembly, wherein the reduction assembly comprises a first bearing, a limiting sleeve, a second bearing, a reduction gearbox output shaft and a linkage gear, the box body is provided with an inner cavity and a reduction gearbox output shaft fixing hole communicated with the inner cavity, the first bearing, the limiting sleeve and the second bearing are sleeved and fixed on the reduction gearbox output shaft and fixed in the reduction gearbox output shaft fixing hole, the linkage gear is fixed at the inner end of the reduction gearbox output shaft and located in the inner cavity, the reduction gearbox output shaft fixing hole sequentially comprises a hole section, a hole section and a hole section from outside to inside, the first bearing is fixed in the hole section, the second bearing is fixed in the hole section, and the limiting sleeve is fixed in the hole section and limited between the first bearing and the second bearing.
2. The reduction gearbox convenient to assemble according to claim 1, wherein the outer diameter of the upper end of the limiting sleeve is smaller than the inner diameter of the outer ring of the first bearing, and the outer diameter of the lower end of the limiting sleeve is smaller than the inner diameter of the outer ring of the second bearing.
3. The reduction gearbox for facilitating assembly according to claim 1, wherein an inner diameter of the first bore section is larger than an inner diameter of the second bore section, an inner diameter of the second bore section is larger than an inner diameter of the third bore section, and the first bore section and the second bore section form a step surface for supporting the first bearing.
4. A reduction gearbox facilitating assembly according to claim 1, characterised in that a section of said bore is provided with a circlip groove therein.
5. The reduction gearbox convenient to assemble according to claim 1, wherein the reduction gearbox output shaft comprises a first shaft section, a second shaft section, a third shaft section and a fourth shaft section from outside to inside, the first bearing is sleeved on the outer side of the first shaft section, the limiting sleeve is sleeved on the outer side of the second shaft section, the second bearing is sleeved on the outer side of the third shaft section, the linkage gear is sleeved on the outer side of the fourth shaft section, the outer diameter of the first shaft section is larger than that of the second shaft section, and the outer diameter of the second shaft section is larger than that of the third shaft section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021761309.XU CN213298761U (en) | 2020-08-21 | 2020-08-21 | Reduction gearbox convenient to assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021761309.XU CN213298761U (en) | 2020-08-21 | 2020-08-21 | Reduction gearbox convenient to assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213298761U true CN213298761U (en) | 2021-05-28 |
Family
ID=76026009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021761309.XU Active CN213298761U (en) | 2020-08-21 | 2020-08-21 | Reduction gearbox convenient to assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213298761U (en) |
-
2020
- 2020-08-21 CN CN202021761309.XU patent/CN213298761U/en active Active
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