CN216200185U - Stable multistage gear reducer of transmission - Google Patents
Stable multistage gear reducer of transmission Download PDFInfo
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- CN216200185U CN216200185U CN202122469774.7U CN202122469774U CN216200185U CN 216200185 U CN216200185 U CN 216200185U CN 202122469774 U CN202122469774 U CN 202122469774U CN 216200185 U CN216200185 U CN 216200185U
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Abstract
The utility model discloses a multi-stage gear reducer with stable transmission, which comprises a shell and a driving motor, wherein the driving motor is fixed on one side of the shell, a motor shaft of the driving motor extends into the shell, a transmission shaft and an output shaft are arranged in the shell, the motor shaft is sequentially connected with the transmission shaft and the output shaft in a transmission way through a transmission pair, an installation plate matched with the transmission shaft and the output shaft is arranged in the shell, two ends of the transmission shaft are rotationally connected with the shell, and the transmission shaft is rotationally connected with the installation plate; the output shaft is rotatably arranged on the shell and the mounting plate. The transmission shaft has the advantages that the structure is compact, the middle part of the transmission shaft is provided with the bearing for transmission and support, the stability of the transmission shaft is improved, the service life of the transmission shaft is prolonged, the axial displacement of the input shaft, the transmission shaft and the output shaft can be strictly limited, and the transmission stability is high.
Description
Technical Field
The application relates to the technical field of gear speed reducers, in particular to a multi-stage gear speed reducer with stable transmission.
Background
The gear reducer is generally used for low-rotating-speed and high-torque transmission equipment, and the common reducer of the motor also has several pairs of gears with the same principle to achieve an ideal speed reduction effect, wherein the ratio of the number of the teeth of the large gear to the number of the teeth of the small gear is the transmission ratio. With the continuous development of the speed reducer industry, more and more enterprises apply the speed reducer, and the stability of the gear speed reducer is always pursued in the industry.
In the Chinese patent document, the utility model with the publication number of CN208919223U is published in 2019, 5.31.A speed reducer with stable transmission is disclosed in the application, which comprises a box body and a base, wherein the box body is arranged on the base, an output shaft and an input shaft are arranged in the box body, the output shaft is perpendicular to the input shaft, an intermediate shaft and a gear shaft are arranged between the output shaft and the input shaft, the gear shaft is arranged between the input shaft and the intermediate shaft, the intermediate shaft is arranged between the gear shaft and the output shaft, a large bevel gear is arranged on the gear shaft, a small bevel gear is arranged on the input shaft, the large bevel gear and the small bevel gear are both arranged into equal-top-clearance arc-tooth bevel gears, the large bevel gear and the small bevel gear are meshed for rotation, and a first output gear and a second output gear are arranged on the intermediate shaft, the output shaft is provided with a second output gear, the second output gear is meshed with the first output gear to rotate, the second output gear is meshed with the large bevel gear to rotate, and the output shaft is further provided with an inner pressure plate. The transmission shaft has the defects that the two ends of the transmission shaft are provided with bearings for connection, the distance between the two gears on the transmission shaft is close, and the middle part of the transmission shaft is arranged in a suspension manner, so that the transmission shaft is easily deformed due to the influence of rotational inertia, and the transmission stability is poor.
Disclosure of Invention
Based on the defects in the prior art, the utility model provides the multi-stage gear reducer with stable transmission, the structure is compact, the middle part of the transmission shaft is provided with the bearing for transmission and support, the stability and the service life of the transmission shaft are improved, the axial displacement of the input shaft, the transmission shaft and the output shaft can be strictly limited, and the transmission stability is high.
In order to achieve the above object, the present application adopts the following technical solutions.
A multi-stage gear reducer with stable transmission is characterized by comprising a shell and a driving motor, wherein the driving motor is fixed on one side of the shell, a motor shaft of the driving motor extends into the shell, a transmission shaft and an output shaft are arranged in the shell, the motor shaft is sequentially connected with the transmission shaft and the output shaft in a transmission way through a transmission pair, a mounting plate matched with the transmission shaft and the output shaft is arranged in the shell, two ends of the transmission shaft are rotatably connected with the shell, and the transmission shaft is rotatably connected with the mounting plate; the output shaft is rotatably arranged on the shell and the mounting plate.
The gear speed reducer directly takes the motor shaft as the input shaft, the output rotating speed of the speed reducer can be adjusted by adjusting the rotating speed of the motor, a reliable smaller rotating speed can be output, the problem that the input shaft needs to be installed in the traditional speed reducer does not exist, the motor shaft can be arranged in a suspension mode, a bearing does not need to be installed, the problem that the input shaft of the traditional speed reducer is easy to axially float when rotating at a high speed is also avoided, and the transmission stability is higher; the mounting panel provides the support of intermediate position for the transmission shaft, improves the stability of transmission shaft, prolongs the life of transmission shaft.
Preferably, the transmission pair comprises an input gear, a transition large gear, a transition small gear and an output gear, the input gear is meshed with the transition large gear, the transition small gear is meshed with the output gear, the input gear is positioned on a motor shaft, the transition large gear and the transition small gear are positioned on a transmission shaft, the output gear is positioned on an output shaft, the transition large gear and the transition small gear are respectively corresponding to two sides of the mounting plate, and the transmission shaft and the mounting plate are connected by adopting double-row self-aligning roller bearings. The transition large gear and the transition small gear are respectively arranged on two sides of the mounting plate, and can provide reliable radial support for the transmission shaft; the setting of biserial self-aligning roller bearing can restrict the axial float of transmission shaft, improves the transmission stability of transmission shaft.
Preferably, the output shaft and the housing are connected by a double row self-aligning roller bearing. The axial displacement of the output shaft is limited, and the output stability of the output shaft is improved.
Preferably, both ends of the transmission shaft and the housing are connected by two tapered roller bearings disposed in opposition to each other. The axial spacing of the transmission shaft is further enhanced, and the transmission shaft is prevented from moving axially, so that the transmission stability of the gear speed reducer is improved.
Preferably, the transmission shaft is provided with a first spacer sleeve, and the first spacer sleeve tightly supports the transition large gear and two groups of bearings adjacent to the transition large gear. The first spacer sleeve realizes the simultaneous expansion of the two groups of bearings and the transition gear wheel, the four bearings are linearly arranged on the transmission shaft and mutually restrained, the position of the transition gear wheel on the transmission shaft can be reliably limited, the transition gear wheel is prevented from axially moving, and the transmission stability is improved.
Preferably, an opening is formed in one side of the shell, an installation cover connected with a shell screw is arranged on the opening, and the driving motor is fixedly installed on the installation cover. The assembly of the driving motor and the gear reducer is convenient.
Preferably, the output shaft and the mounting plate are connected through a cylindrical roller bearing, a second spacer bush is arranged on the output shaft, and the second spacer bush tightly pushes against the output gear and two groups of bearings on the output shaft. The reliable limit of the output gear on the output shaft is realized.
Preferably, one side of the output gear, which is opposite to the mounting plate, is provided with an extension ring part which extends outwards. The matching area of the output gear and the output shaft is enlarged, and the stability of radial transmission is improved.
The utility model has the following beneficial effects: the problem that an input shaft needs to be installed in a traditional speed reducer is solved, a motor shaft can be arranged in a suspension mode, a bearing does not need to be installed, the problem that the input shaft of the traditional speed reducer is easy to axially float when rotating at a high speed is solved, and the transmission stability is higher; the mounting plate provides support for the middle position of the transmission shaft, so that the stability of the transmission shaft is improved, and the service life of the transmission shaft is prolonged; the axial displacement of the input shaft, the transmission shaft and the output shaft can be strictly limited, and the transmission stability is high.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a cross-sectional view at a-a in fig. 2.
In the figure: a shell 1 drives a motor 2, a motor shaft 3, a transmission shaft 4, an output shaft 5, an output gear 6, an extension ring part 7, an installation plate 8, an input gear 9, a transition large gear 10, a transition small gear 11, a double-row self-aligning roller bearing 12, a tapered roller bearing 13, a cylindrical roller bearing 14, an eyebolt 15, a first spacer 16, an installation cover 17, a second spacer 18, a flange 19, an oil seal 20, a manhole cover 21 and an oil drain bolt 22.
Detailed Description
The utility model is further illustrated with reference to the figures and the specific embodiments.
In the embodiment of the method, the first step,
as shown in fig. 1 to 3, a multi-stage gear reducer with stable transmission, including casing 1 and driving motor 2, driving motor 2 is fixed in casing 1 one side, inside motor shaft 3 of driving motor 2 stretched into casing 1, be equipped with transmission shaft 4 and output shaft 5 in the casing 1, motor shaft 3 passes through the transmission pair and connects transmission shaft 4 and output shaft 5 in proper order in the transmission, be equipped with the mounting panel 8 of cooperation transmission shaft 4 and output shaft 5 in the casing 1, the both ends of transmission shaft 4 rotate with casing 1 and connect, transmission shaft 4 rotates with mounting panel 8 and connects. The transmission pair comprises an input gear 9, a transition large gear 10, a transition small gear 11 and an output gear 6, the input gear 9 is meshed with the transition large gear 10, the transition small gear 11 is meshed with the output gear 6, the input gear 9 is positioned on the motor shaft 3, the transition large gear 10 and the transition small gear 11 are positioned on the transmission shaft 4, the output gear 6 is positioned on the output shaft 5, the transition large gear 10 and the transition small gear 11 are respectively corresponding to two sides of the mounting plate 8, and the transmission shaft 4 is connected with the mounting plate 8 through a double-row self-aligning roller bearing 12. Both ends of the transmission shaft 4 are connected with the housing 1 through two tapered roller bearings 13 arranged oppositely. The output shaft 5 is rotatably disposed on the housing 1 and the mounting plate 8. The output shaft 5 and the housing 1 are also connected by a double row self-aligning roller bearing 12. The output shaft 5 and the mounting plate 8 are connected by a cylindrical roller bearing 14. The transmission shaft 4 is provided with a first spacer 16, and the first spacer 16 tightly supports the transition gearwheel 10 and two groups of bearings adjacent to the transition gearwheel 10. An opening is formed in one side of the shell 1, an installation cover 17 in screw connection with the shell 1 is arranged on the opening, and the driving motor 2 is fixedly installed on the installation cover 17 through screws. The output shaft 5 is provided with a second spacer bush 18, and the second spacer bush 18 tightly pushes against the output gear 6 and two groups of bearings on the output shaft 5. One side of the output gear 6, which is back to the mounting plate 8, is provided with an extension ring part 7 which extends outwards. The output gear 6 and the extended ring portion 7 are both provided with a keyway for engaging the output shaft 5. The housing 1 is provided with a connecting flange 19 on the side from which the output shaft 5 projects, and an oil seal 20 is provided between the connecting flange 19 and the output shaft 5. The upper side of the shell 1 is provided with a sight hole cover 21, the sight hole cover 21 is provided with an oil drain bolt 22, and the oil drain bolt 22 is over against the output gear 6. The upper side of the shell 1 is also provided with an eyebolt 15, so that the reducer can be conveniently hoisted.
The gear speed reducer directly takes the motor shaft 3 as an input shaft, the output rotating speed of the speed reducer can be adjusted by adjusting the rotating speed of the motor, a reliable smaller rotating speed can be output, the problem that the input shaft needs to be installed in the traditional speed reducer does not exist, the motor shaft 3 can be arranged in a suspension mode, a bearing does not need to be installed, the problem that the input shaft of the traditional speed reducer is easy to axially float when rotating at a high speed is also avoided, and the transmission stability is higher; the mounting plate 8 provides the support of intermediate position for the transmission shaft 4, improves the stability of transmission shaft 4, prolongs the life of transmission shaft 4. The transition large gear 10 and the transition small gear 11 are respectively arranged at two sides of the mounting plate 8, and can provide reliable radial support for the transmission shaft 4; the arrangement of the double-row self-aligning roller bearing 12 can limit the axial movement of the transmission shaft 4 and improve the transmission stability of the transmission shaft 4. The first spacer sleeve 16 achieves the simultaneous expansion of the two groups of bearings and the transition large gear 10, the four bearings and the transition large gear are linearly arranged on the transmission shaft 4 and are mutually constrained, the position of the transition large gear 10 on the transmission shaft 4 can be reliably limited, the transition large gear 10 is prevented from axially moving, and the transmission stability is improved.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A multi-stage gear reducer with stable transmission is characterized by comprising a shell and a driving motor, wherein the driving motor is fixed on one side of the shell, a motor shaft of the driving motor extends into the shell, a transmission shaft and an output shaft are arranged in the shell, the motor shaft is sequentially connected with the transmission shaft and the output shaft in a transmission way through a transmission pair, a mounting plate matched with the transmission shaft and the output shaft is arranged in the shell, two ends of the transmission shaft are rotatably connected with the shell, and the transmission shaft is rotatably connected with the mounting plate; the output shaft is rotatably arranged on the shell and the mounting plate.
2. The multi-stage gear reducer with stable transmission as claimed in claim 1, wherein the transmission pair comprises an input gear, a transition gear wheel, a transition pinion and an output gear, the input gear is engaged with the transition gear wheel, the transition pinion is engaged with the output gear, the input gear is located on the motor shaft, the transition gear wheel and the transition pinion are located on the transmission shaft, the output gear is located on the output shaft, the transition gear wheel and the transition pinion are respectively corresponding to two sides of the mounting plate, and the transmission shaft and the mounting plate are connected by a double-row self-aligning roller bearing.
3. The multi-stage gear reducer according to claim 1 or 2, wherein the output shaft and the housing are connected by a double-row self-aligning roller bearing.
4. The multi-stage gear reducer according to claim 2, wherein the two ends of the transmission shaft are connected to the housing through two tapered roller bearings disposed opposite to each other.
5. The multi-stage gear reducer with stable transmission as claimed in claim 4, wherein the transmission shaft is provided with a first spacer sleeve, and the first spacer sleeve tightly supports the transition gear wheel and two sets of bearings adjacent to the transition gear wheel.
6. The multi-stage gear reducer of claim 1, wherein the housing has an opening at one side, the opening has a mounting cover screwed to the housing, and the driving motor is fixedly mounted on the mounting cover.
7. The multi-stage gear reducer of claim 5, wherein the output shaft and the mounting plate are connected by cylindrical roller bearings, and the output shaft is provided with a second spacer which abuts against two sets of bearings on the output gear and the output shaft.
8. The multi-stage gear reducer with stable transmission as claimed in claim 2, wherein the side of the output gear, which faces away from the mounting plate, is provided with an extension ring portion extending outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469774.7U CN216200185U (en) | 2021-10-13 | 2021-10-13 | Stable multistage gear reducer of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469774.7U CN216200185U (en) | 2021-10-13 | 2021-10-13 | Stable multistage gear reducer of transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200185U true CN216200185U (en) | 2022-04-05 |
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ID=80865752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122469774.7U Active CN216200185U (en) | 2021-10-13 | 2021-10-13 | Stable multistage gear reducer of transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200185U (en) |
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2021
- 2021-10-13 CN CN202122469774.7U patent/CN216200185U/en active Active
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