CN219866179U - High-precision rotary speed reducer - Google Patents
High-precision rotary speed reducer Download PDFInfo
- Publication number
- CN219866179U CN219866179U CN202321324097.2U CN202321324097U CN219866179U CN 219866179 U CN219866179 U CN 219866179U CN 202321324097 U CN202321324097 U CN 202321324097U CN 219866179 U CN219866179 U CN 219866179U
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- worm
- shell
- sealing
- speed reducer
- rotary speed
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 239000003921 oil Substances 0.000 abstract description 22
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Gear Transmission (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a high-precision rotary speed reducer, which comprises a shell, wherein a worm gear and a worm screw are arranged in the shell in a rotating way, one end of the worm screw is connected with the outside through a transmission assembly, a cover plate is arranged at one end of the worm gear far away from the worm screw and is connected with the outside, the position of the worm gear close to the cover plate is in sealing fit with an opening of the shell through a sealing assembly, the sealing assembly comprises an oil seal arranged between the opening of the shell and the worm screw, and at least two sealing rings are arranged between the shell and the worm screw at one side of the oil seal far away from the cover plate; the oil seal is arranged on the shell and is in rotary seal with the worm wheel, the sealing ring is arranged on the worm wheel and is in rotary seal with the shell, and combined seal is realized through the combined structure of the oil seal and the sealing ring, so that the sealing performance of the rotary speed reducer is improved, the leakage of lubricating oil used for lubricating the slewing bearing (worm wheel) and the worm in the shell is avoided, and the service life of the rotary speed reducer is prolonged.
Description
Technical Field
The utility model relates to the technical field of rotary speed reducers, in particular to a high-precision rotary speed reducer.
Background
The rotary speed reducer adopts a slewing bearing (commonly called a turntable) as a speed reducer driven part, can realize unlimited circumferential rotation and speed reduction, can bear larger axial force, radial force and overturning force, can be manufactured into a standard mechanical part so as to be applied to various mechanical equipment with rotation requirements, and particularly has the advantages of high precision, compact structure and large bearing capacity, and is suitable for being used in a relatively severe working condition environment. The shell of the rotary speed reducer is internally provided with a meshed slewing bearing (worm wheel) and a worm, then the shell is sealed by a cover plate, in the prior art, an oil seal is generally arranged between the slewing bearing (worm wheel) and the shell, the oil seal can be aged and deformed after long-time use, the tightness is poor, and lubricating oil used for lubricating the slewing bearing (worm wheel) and the worm in the shell leaks, so that the normal use of the rotary speed reducer is affected.
Disclosure of Invention
The utility model aims to solve the technical problems, and provides a high-precision rotary speed reducer, which improves the sealing performance of the rotary speed reducer through a combined sealing structure, avoids the leakage of lubricating oil used for lubricating a rotary support (worm wheel) and a worm in a shell, and prolongs the service life of the rotary speed reducer.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a high-precision rotary speed reducer, includes the casing, be equipped with the worm gear that rotates the setting in the casing, worm one end is through drive assembly and external connection, the one end that worm was kept away from to the worm gear is equipped with apron and external connection, the position that the worm gear is close to the apron pass through seal assembly with the opening part sealing fit of casing, seal assembly is including setting up casing opening part with the oil blanket between the worm gear, the oil blanket is kept away from apron one side the casing with be equipped with two at least sealing washer between the worm gear.
In order to ensure reasonable and compact sealing structure and convenient processing and manufacturing, a further preferable technical scheme is that a circle of outer roller path is arranged at the position, close to the opening of the shell, of the worm wheel, a circle of inner roller path is arranged on the corresponding shell, and a plurality of balls are arranged in the worm wheel outer roller path and the shell inner roller path.
In order to ensure that the sealing structure is reasonable and compact and has good sealing effect, a further preferable technical scheme is that at least two circles of sealing grooves are arranged on two sides of an outer raceway of the worm wheel, and the sealing rings are respectively arranged in the corresponding sealing grooves.
In order to ensure that the sealing structure is reasonable and has good sealing effect, a further preferable technical scheme is that an oil seal groove is formed in the opening of the shell, and the oil seal is arranged in the oil seal groove.
Compared with the prior art, the utility model has the beneficial effects that: the oil seal is arranged on the shell and is in rotary seal with the worm wheel, the sealing ring is arranged on the worm wheel and is in rotary seal with the shell, and the combined seal is realized through the combined structure of the oil seal and the sealing ring, so that the sealing performance of the rotary speed reducer is improved, the leakage of lubricating oil used for lubricating a slewing bearing (worm wheel) and a worm in the shell is avoided, and the service life of the rotary speed reducer is prolonged; in order to realize the setting of sealing washer, will the worm wheel with pass through ball connection between the casing, reduce the clearance between the worm wheel with the setting of sealing washer is convenient for.
Drawings
FIG. 1 is one of the isometric views of the present utility model;
FIG. 2 is a second perspective view of the present utility model;
FIG. 3 is one of the semi-sectional isometric views of the present utility model;
FIG. 4 is a second semi-sectional isometric view of the present utility model;
in the figure: 10. a housing; 11. a worm box; 12. a worm gear case; 20. a cover plate; 30. a worm; 40. a transmission assembly; 50. a rolling bearing; 60. a worm wheel; 70. a ball; 80. a seal assembly; 81. an oil seal; 82. and (3) sealing rings.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Examples
As shown in fig. 1-4, a high-precision rotary speed reducer comprises a housing 10, wherein the housing 10 comprises a worm gear case 12, one end of the worm gear case 12 is closed, the other end is in an open structure, one side of the worm gear case 12 close to the closed end is provided with a worm gear case 11 with mutually communicated inside, one end of the worm gear case 11 is closed, the other end is also in an open structure, the worm gear case 12 and the worm gear case 12 are integrated into a housing 10 through casting, a worm 30 is arranged in the worm gear case 11, one closed end of the worm 30 close to the worm gear case 11 is in rotary connection with the worm gear case 11 through a rolling bearing 50 at one end, a transmission assembly 40 is arranged in an opening of the worm gear case 12 corresponding to the other end of the worm 30 and is in external connection, the transmission assembly 40 is a gear transmission assembly, in this embodiment, preferably a planetary gear transmission assembly, the planetary gear transmission assembly can adopt a first stage, a second stage and a third stage, an inner hole is arranged on an output shaft of the planetary gear transmission assembly, which is close to one end of the worm, and one end of the worm is connected with one end of the planetary gear transmission assembly through a key, an inner hole is arranged on an input shaft of the planetary gear transmission assembly, which is close to one end of the worm case, and is connected with a driving shaft of an external driving mechanism, a worm wheel 60 which is rotationally arranged in the worm case 12 is arranged in the worm case 12, one end of the worm wheel 60, which is close to the worm case 12, is rotationally connected with the worm case 12 through a sliding bearing, one end of the worm wheel 60, which is close to the sliding bearing, is provided with a circle of worm teeth for meshing transmission with the worm 30, a circle of outer rollaway is arranged at a position of the worm wheel 60, which is close to the opening of the worm case 12, a circle of inner rollaway is arranged on the corresponding worm case 12, a plurality of balls 70 are arranged in the outer rollaway nest of the worm wheel 60 and the inner rollaway joint of the worm case 12, the worm wheel 60 is in a stepped shaft shape, the shaft diameter of the worm wheel 60 from the opening of the worm wheel case 12 to the closed end is sequentially reduced, worm teeth are arranged on an intermediate shaft of the worm wheel 60, an outer raceway is arranged on the shaft of the worm wheel 60 corresponding to the opening of the worm wheel case 12, a cover plate 20 is arranged at one end, close to the opening of the worm wheel case 12, of the worm wheel 60, the cover plate 20 is fixedly connected with the end face of the worm wheel 60 through a set of bolts, a plurality of annular through holes are further formed in the cover plate 20, and the cover plate 20 is connected with a client through bolts;
as shown in fig. 1-3, the position of the worm wheel 60 close to the cover plate 20 is in sealing fit with the opening of the worm wheel case 12 through a sealing assembly 80, the sealing assembly 80 comprises an oil seal 81 arranged between the opening of the worm wheel case 12 and the worm wheel 60, an oil seal groove is arranged at the opening of the worm wheel case 12, the oil seal 81 is arranged in the oil seal groove, and the oil seal 81 is in rotary sealing with the outside of the worm wheel 60;
two sealing rings 82 are arranged between the worm gear case 12 and the worm gear 60 on the side, far away from the cover plate 20, of the oil seal 81, specifically, two rings of sealing grooves are arranged on two sides of an outer raceway of the worm gear 60, the sealing rings 82 are respectively arranged in the corresponding sealing grooves, the sealing rings 82 and the inner side surface of the worm gear case 12 are rotationally sealed, in order to realize the arrangement of the sealing rings 82, the worm gear 60 and the worm gear case 12 are connected through balls, so that the gap between the worm gear 60 and the worm gear case 12 is reduced, and the arrangement of the sealing rings 82 is facilitated;
the oil seal 81 is arranged on the worm gear case 12 and is in rotary seal with the worm gear 60, the sealing ring 82 is arranged on the worm gear 60 and is in rotary seal with the worm gear case 12, and the combined structure of the oil seal 81 and the sealing ring 82 realizes combined seal, so that the sealing performance of the rotary speed reducer is improved, the leakage of lubricating oil used for lubricating the rotary support (worm gear) and the worm 30 in the shell 10 is avoided, and the service life of the rotary speed reducer is prolonged.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (4)
1. The utility model provides a high-precision rotary speed reducer, includes the casing, be equipped with the worm gear that rotates the setting in the casing, worm one end is through drive assembly and external connection, the one end that worm was kept away from to the worm gear is equipped with apron and external connection, the position that the worm gear is close to the apron pass through seal assembly with the opening part sealing fit of casing, a serial communication port, seal assembly is including setting up casing opening part with the oil blanket between the worm gear, the oil blanket is kept away from one side of apron the casing with be equipped with two at least sealing washer between the worm gear.
2. The high-precision rotary speed reducer according to claim 1, wherein a circle of outer roller path is arranged at a position of the worm wheel close to the opening of the shell, a circle of inner roller path is arranged on the corresponding shell, and a plurality of balls are arranged in the worm wheel outer roller path and the shell inner roller path.
3. The high-precision rotary speed reducer according to claim 2, wherein at least two rings of sealing grooves are arranged on two sides of the outer raceway of the worm wheel, and the sealing rings are respectively arranged in the corresponding sealing grooves.
4. The high-precision rotary speed reducer according to claim 1, wherein an oil seal groove is formed in the opening of the housing, and the oil seal is arranged in the oil seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321324097.2U CN219866179U (en) | 2023-05-29 | 2023-05-29 | High-precision rotary speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321324097.2U CN219866179U (en) | 2023-05-29 | 2023-05-29 | High-precision rotary speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866179U true CN219866179U (en) | 2023-10-20 |
Family
ID=88343457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321324097.2U Active CN219866179U (en) | 2023-05-29 | 2023-05-29 | High-precision rotary speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866179U (en) |
-
2023
- 2023-05-29 CN CN202321324097.2U patent/CN219866179U/en active Active
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