CN220248869U - Full-function combined sealing device for speed reducer and speed reducer - Google Patents
Full-function combined sealing device for speed reducer and speed reducer Download PDFInfo
- Publication number
- CN220248869U CN220248869U CN202321929332.9U CN202321929332U CN220248869U CN 220248869 U CN220248869 U CN 220248869U CN 202321929332 U CN202321929332 U CN 202321929332U CN 220248869 U CN220248869 U CN 220248869U
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- full
- speed reducer
- sealing ring
- space
- transparent cover
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- 238000007789 sealing Methods 0.000 title claims abstract description 100
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 58
- 238000003825 pressing Methods 0.000 claims abstract description 27
- 230000000903 blocking effect Effects 0.000 claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 5
- 239000003566 sealing material Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 28
- 230000000694 effects Effects 0.000 abstract description 11
- 238000013459 approach Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 28
- 239000004519 grease Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a full-function combined sealing device for a speed reducer and the speed reducer, wherein the full-function combined sealing device comprises a transparent cover, a pressing plate and a sealing ring, wherein the transparent cover is used for connecting an outer ring and sleeved on an input shaft, at least two first bulges are arranged on the transparent cover, and a first groove is formed between every two adjacent first bulges; the pressing plate is provided with a plurality of second bulges, second grooves are formed between every two adjacent second bulges, the second grooves are matched with the first bulges, the second bulges are matched with the first grooves, and the pressing plate is matched with the transparent cover and defines a blocking space with the surface of the input shaft; the sealing ring is positioned in the blocking space and approaches to the joint of the blocking space and the rolling space. According to the full-functional combined sealing device, oil leakage can be placed by utilizing double sealing of matching of the transparent cover and the pressing plate, external dust can be prevented from entering the inside of the speed reducer, the sealing effect is ensured, and further the speed reducer can work normally under severe working conditions such as dust emission and the like.
Description
Technical Field
The utility model relates to the field of speed reducers, in particular to a full-function combined sealing device for a speed reducer and the speed reducer.
Background
In the field of bulk cargo loading and unloading, dust working conditions are more, and dust particles easily break through a conventional rubber lip sealing ring and enter the reducer. After entering the inside of the speed reducer box, dust contaminates lubricating oil, and damages the lip and the oil film of the oil seal, so that oil leakage occurs, and the meshing surface of the gear is damaged after long-time operation, thereby greatly reducing the service life of the speed reducer.
Disclosure of Invention
In view of the above, the present utility model aims to provide a full-function combined sealing device for a speed reducer, which can prevent dust from entering the speed reducer and oil leakage.
In order to solve the technical problems, the utility model adopts the following technical scheme:
in a first aspect, according to an embodiment of the present utility model, a full-function combined seal device for a speed reducer, the speed reducer includes a bearing, the bearing includes an inner ring, a roller, and an outer ring, the inner ring is connected to an input shaft, a rolling space is defined between the inner ring and the outer ring, the roller is located in the rolling space, the rolling space is communicated with an internal space of the speed reducer, the input shaft follows the roller and the inner ring to make a rotational movement relative to the outer ring, the full-function combined seal device includes:
the transparent cover is used for connecting the bearing, at least two first bulges are arranged on the transparent cover, and a first groove is formed between every two adjacent first bulges;
the pressing plate is provided with a plurality of second bulges, second grooves are formed between every two adjacent second bulges, the second grooves are matched with the first bulges, the second bulges are matched with the first grooves, the pressing plate is matched with the transparent cover, the pressing plate is connected with the input shaft, a blocking space is defined by the pressing plate, the transparent cover and the surface of the input shaft, and the blocking space is communicated with the rolling space;
the sealing ring is positioned in the blocking space and is close to the joint of the blocking space and the rolling space so as to block medium movement between the inner space of the speed reducer and the blocking space.
Further, the full-function combined sealing device further comprises a box body, and the box body is connected with the bearing.
Further, the box body is provided with a plurality of threaded holes, the outer wall of the transparent cover is provided with a flange surface, the flange surface is provided with a plurality of mounting holes, the mounting holes are matched with the threaded holes,
the full-function combined sealing device further comprises a fastener, and the fastener is inserted into the mounting hole and the threaded hole, so that the penetrating cover is connected with the box body.
Further, a spigot is arranged at the bottom end of the transparent cover, and when the transparent cover is matched with the pressing plate, the spigot is abutted to part of the surface of the outer ring.
Further, an oil seal flange and a clamping groove are arranged on the inner wall of the transparent cover, the oil seal flange is positioned at the bottom end of the inner wall of the transparent cover, the sealing ring is positioned on the surface of the oil seal flange, and the clamping groove is close to the bottom of the first bulge;
the full-function combined sealing device further comprises a clamp spring, wherein the clamp spring is clamped in the clamping groove, and the clamp spring abuts against the sealing ring on the surface of the oil seal flange.
Further, the full-function combined sealing device further comprises:
the dustproof sealing ring is located in the blocking space, the dustproof sealing ring is located between the clamp spring and the sealing ring, and the clamp spring is abutted to the dustproof sealing ring and enables the dustproof sealing ring to be abutted to the sealing ring.
Further, the full-function combined sealing device further comprises:
the spacer ring is positioned between the dustproof sealing ring and the sealing ring, and is abutted against the dustproof sealing ring and the sealing ring under the action of the clamp spring, a filling space is formed among the spacer ring, the sealing ring, the dustproof sealing ring and the input shaft, and the filling space is used for filling a sealing material.
Furthermore, the snap spring is an elastic retainer ring for holes.
Further, the sealing ring is an oil seal box made of rubber materials.
In a second aspect, an embodiment of the present utility model further provides a speed reducer, including a full-functional combined sealing device for a speed reducer provided by any one of the embodiments provided in the first aspect.
The technical scheme of the utility model has at least one of the following beneficial effects:
the full-function combined sealing device for the speed reducer disclosed by the utility model has the advantages that the through cover is matched with the pressing plate to form the labyrinth oil seal to serve as one seal, and the sealing ring is used to form the other seal, so that the double seals can not only place oil leakage, but also prevent external dust from entering the speed reducer, ensure the sealing effect, further ensure the normal work of the speed reducer under severe working conditions such as dust emission and the like, and realize the function combined sealing effect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a full-function combined sealing device for a speed reducer according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a schematic structural view of a transparent cover in a full-function combined sealing device for a speed reducer according to an embodiment of the present utility model;
FIG. 4 is a schematic cross-sectional view of a transparent cover in a full-function combined seal for a reduction gear provided in an embodiment of the present utility model;
fig. 5 is a schematic cross-sectional view of a speed reducer according to an embodiment of the present utility model.
Reference numerals:
10. an input shaft; 11. an inner ring; 12. a roller; 13. an outer ring;
20. a transparent cover; 201. a first protrusion; 202. a first groove; 203. a flange surface; 2031. a mounting hole; 204. a spigot; 205. an oil seal flange; 206. a clamping groove; 21. a pressing plate; 211. a second protrusion; 22. a seal ring; 23. clamping springs; 24. a dust seal ring; 25. a spacer ring; 26. filling the space; 30. a fastener; 40. a case; 100. a speed reducer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.
The speed reducer 100 in the embodiment of the utility model comprises a bearing, the bearing comprises an inner ring 11, rollers 12 and an outer ring 13, the inner ring 11 is connected with an input shaft 10, a rolling space is defined between the inner ring 11 and the outer ring 13, the rollers 12 are positioned in the rolling space, the rolling space is communicated with the internal space of the speed reducer 100, and the input shaft 10 follows the rollers 12 and the inner ring 11 to do rotary motion relative to the outer ring 13.
The lubrication oil is added into the rolling space, so that friction and abrasion in the bearing and the reducer 100 can be reduced, the running accuracy of the reducer 100 can be improved, and the service life of the reducer can be prolonged.
In the prior art, as the working environment of the speed reducer 100 is severe, dust working conditions are more, dust particles easily break through the conventional sealing ring 22 and enter the speed reducer 100 to pollute lubricating oil, damage lips and an oil film of an oil seal, and cause oil leakage.
In view of the above technical problems, the embodiments of the present utility model provide a full-function combined sealing device for a speed reducer, where a plurality of seals are disposed at a bearing of the speed reducer 100, so as to prevent external dust from entering the interior of the speed reducer, and ensure a sealing effect, thereby ensuring operation accuracy and service life of the speed reducer 100.
A full-function combined sealing device for a decelerator according to an embodiment of the present utility model will be described in detail with reference to the accompanying drawings.
Specifically, as shown in fig. 1 to 4, the full-function combined sealing device for a speed reducer provided by the embodiment of the utility model comprises a transparent cover 20, a pressing plate 21 and a sealing ring 22.
The transparent cover 20 is used for connecting the bearing, at least two first protrusions 201 are disposed on the transparent cover 20, and a first groove 202 is formed between adjacent first protrusions 201.
The pressing plate 21 is provided with a plurality of second protrusions 211, second grooves are formed between every two adjacent second protrusions 211, the second grooves are matched with the first protrusions 201, the second protrusions 211 are matched with the first grooves 202, the pressing plate 21 is matched with the transparent cover 20, the pressing plate is connected with the input shaft 10, a blocking space is defined by the pressing plate 21, the transparent cover 20 and the surface of the input shaft 10, and the blocking space is communicated with the rolling space.
The pressing plate 21 is in interference connection with the input shaft 10, and the input shaft 10 rotates to drive the pressing plate 21 to rotate relative to the transparent cover 20.
The sealing ring 22 is located in the blocking space and is close to the connection between the blocking space and the rolling space, so as to block medium movement between the inner space of the speed reducer and the blocking space.
Preferably, the sealing ring 22 is an oil seal box made of rubber, and the lip of the oil seal box generates a layer of oil film in the rotating process, so that the sealing effect is achieved, and oil leakage is prevented.
The transparent cover 20 is matched with the first bulge 201 and the second groove on the pressing plate 21, a small gap is formed between the transparent cover 20 and the pressing plate 21, a labyrinth oil seal is formed between the transparent cover 20 and the pressing plate 21, the entry of external dust is effectively blocked, the sealing ring 22 is sleeved at the inlet and the outlet of the rolling space to form another seal, and even if the external dust enters the blocking space, the sealing ring 22 can further block the dust from entering the speed reducer, and the tightness of the speed reducer is improved.
In one embodiment, as shown in fig. 1, 3 and 4, the full-function combined sealing device further comprises a box 40, the box 40 is connected with the bearing, and the transparent cover 20 is sleeved on the box 40.
Further, the box 40 is provided with a plurality of threaded holes, the outer wall of the transparent cover 20 is provided with a flange surface 203, the flange surface 203 is provided with a plurality of mounting holes 2031, and the mounting holes 2031 are matched with the threaded holes.
The full function combined sealing device further comprises a fastener 30, wherein the fastener 30 is inserted into the mounting hole 2031 and the threaded hole, so that the transparent cover 20 is connected with the case 40.
That is, the case 40 is used to facilitate the connection of the transparent cover 20 with the outer ring 13. The flange surface 203 of the transparent cover 20 is provided with a plurality of mounting holes 2031, and the corresponding box body 40 is provided with a plurality of threaded holes, and the transparent cover 20 is connected with the box body 40 by using the fastener 30, so that the connection mode is simple and convenient to install.
In an embodiment, as shown in fig. 2 and 4, a spigot 204 is provided at the bottom end of the transparent cover 20, and when the transparent cover 20 is matched with the pressing plate 21, the spigot 204 abuts against a part of the surface of the outer ring 13.
That is, the remaining portion of the bottom end of the transparent cover 20 communicates with the rolling space and with the blocking space.
In an embodiment, as shown in fig. 2 and fig. 4, an oil seal flange 205 and a clamping groove 206 are provided on the inner wall of the transparent cover 20, the oil seal flange 205 is located at the bottom end of the inner wall of the transparent cover 20, the sealing ring 22 is located on the surface of the oil seal flange 205, and the clamping groove 206 is close to the bottom of the first protrusion 201.
The full-function combined sealing device further comprises a clamp spring 23, the clamp spring 23 is clamped in the clamping groove 206, and the clamp spring 23 abuts against the surface of the oil seal flange 205.
The oil seal flange 205 is used for bearing the sealing ring 22, so that the sealing ring 22 is prevented from position movement in the high-speed shaft running process, and the sealing effect is prevented from being influenced.
The snap spring 23 is preferably a hole-used elastic retainer ring, the hole-used elastic retainer ring is convenient to install, and the hole-used elastic retainer ring is clamped in a clamping groove 206 on the inner wall of the through cover 20 so as to enable the sealing ring 22 to be abutted against the surface of the oil seal flange 205, the position of the sealing ring 22 is further limited, and the sealing effect of the sealing ring 22 is improved.
The depth of the engagement groove 206 is set based on the inner hole diameter of the snap spring 23, and is not limited in this application.
In an embodiment, as shown in fig. 2, the full-functional combined sealing device further includes a dust seal ring 24, where the dust seal ring 24 is located in the blocking space, the dust seal ring 24 is located between the clamp spring 23 and the seal ring 22, and the clamp spring 23 abuts against the dust seal ring 24, so that the dust seal ring 24 abuts against the seal ring 22.
That is, the dust seal ring 24 is located at the junction of the labyrinth seal and the blocking space to further block dust from entering the interior of the reduction gear. The dust seal 24 effectively blocks dust entering the blocking space after the dust breaks a seal from the labyrinth seal. The clamp spring 23 is abutted against the dustproof sealing ring 24, and the dustproof sealing ring 24 is abutted against the sealing ring 22 so as to limit the positions of the sealing ring 22 and the dustproof sealing ring 24 in the blocking space and improve the sealing effect.
In an embodiment, as shown in fig. 2, the full-functional combined sealing device further includes a spacer ring 25, where the spacer ring 25 is located between the dust seal ring 24 and the seal ring 22 and abuts against the dust seal ring 24 and the seal ring 22 under the action of the clamp spring 23, and a filling space 26 is formed between the spacer ring 25, the seal ring 22, the dust seal ring 24 and the input shaft 10, and the filling space 26 is used for filling a sealing material.
The filling sealing material is preferably lithium-based grease, the lithium-based grease is grease, the lithium-based grease has mechanical stability and lubricating efficiency, and the lithium-based grease can further ensure the sealing effect of the oil seal.
The dustproof sealing ring 24, the spacing ring 25 and the filling sealing material form a seal, namely three seals are shared with the two seals, so that the sealing effect of the speed reducer is improved.
The embodiment of the utility model also provides a speed reducer, as shown in fig. 5, comprising the full-function combined sealing device for the speed reducer provided by any embodiment. The full-function combined sealing device is arranged on the bearing of the speed reducer, plays a role in sealing the rolling space of the bearing and the inner space of the speed reducer, and improves the sealing effect of the speed reducer.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. The utility model provides a full-functional combination sealing device for reduction gear, the reduction gear includes the bearing, the bearing includes inner circle, roller and outer lane, the input shaft is connected to the inner circle, be defined with rolling space between inner circle and the outer lane, the roller is located rolling space is interior, rolling space intercommunication the reduction gear inner space, the input shaft follows the roller with the inner circle is relative outer lane is rotary motion, its characterized in that, full-functional combination sealing device includes:
the transparent cover is used for connecting the bearing, at least two first bulges are arranged on the transparent cover, and a first groove is formed between every two adjacent first bulges;
the pressing plate is provided with a plurality of second bulges, second grooves are formed between every two adjacent second bulges, the second grooves are matched with the first bulges, the second bulges are matched with the first grooves, the pressing plate is matched with the transparent cover, the pressing plate is connected with the input shaft, a blocking space is defined by the pressing plate, the transparent cover and the surface of the input shaft, and the blocking space is communicated with the rolling space;
the sealing ring is positioned in the blocking space and is close to the joint of the blocking space and the rolling space so as to block medium movement between the inner space of the speed reducer and the blocking space.
2. The full-function combination seal for a speed reducer of claim 1, further comprising a housing, said housing being connected to said bearing.
3. A full-function combined sealing device for a speed reducer as claimed in claim 2, wherein the box body is provided with a plurality of threaded holes, the outer wall of the transparent cover is provided with a flange surface, the flange surface is provided with a plurality of mounting holes, the mounting holes are matched with the threaded holes,
the full-function combined sealing device further comprises a fastener, and the fastener is inserted into the mounting hole and the threaded hole, so that the penetrating cover is connected with the box body.
4. The full-function combined sealing device for a speed reducer according to claim 1, wherein a spigot is provided at a bottom end of the cover, and the spigot abuts against a part of a surface of the outer ring when the cover is matched with the pressing plate.
5. The full-function combined sealing device for the speed reducer according to claim 1, wherein an oil seal flange and a clamping groove are arranged on the inner wall of the transparent cover, the oil seal flange is positioned at the bottom end of the inner wall of the transparent cover, the sealing ring is positioned on the surface of the oil seal flange, and the clamping groove is close to the bottom of the first bulge;
the full-function combined sealing device further comprises a clamp spring, wherein the clamp spring is clamped in the clamping groove, and the clamp spring abuts against the sealing ring on the surface of the oil seal flange.
6. The full-function combination seal for a speed reducer of claim 5, further comprising:
the dustproof sealing ring is located in the blocking space, the dustproof sealing ring is located between the clamp spring and the sealing ring, and the clamp spring is abutted to the dustproof sealing ring and enables the dustproof sealing ring to be abutted to the sealing ring.
7. The full-function combination seal for a speed reducer of claim 6, further comprising:
the spacer ring is positioned between the dustproof sealing ring and the sealing ring, and is abutted against the dustproof sealing ring and the sealing ring under the action of the clamp spring, a filling space is formed among the spacer ring, the sealing ring, the dustproof sealing ring and the input shaft, and the filling space is used for filling a sealing material.
8. The full-featured combination seal for a decelerator of claim 5, wherein the circlip is a circlip for a hole.
9. The full-function combined sealing device for a speed reducer according to claim 1, wherein the seal ring is an oil seal box made of rubber.
10. A decelerator comprising a fully functional combined seal for a decelerator as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929332.9U CN220248869U (en) | 2023-07-21 | 2023-07-21 | Full-function combined sealing device for speed reducer and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321929332.9U CN220248869U (en) | 2023-07-21 | 2023-07-21 | Full-function combined sealing device for speed reducer and speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248869U true CN220248869U (en) | 2023-12-26 |
Family
ID=89271837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321929332.9U Active CN220248869U (en) | 2023-07-21 | 2023-07-21 | Full-function combined sealing device for speed reducer and speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248869U (en) |
-
2023
- 2023-07-21 CN CN202321929332.9U patent/CN220248869U/en active Active
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