CN214036782U - Dynamic and static sealing mechanism for transmission shaft of planetary reducer - Google Patents
Dynamic and static sealing mechanism for transmission shaft of planetary reducer Download PDFInfo
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- CN214036782U CN214036782U CN202022233001.4U CN202022233001U CN214036782U CN 214036782 U CN214036782 U CN 214036782U CN 202022233001 U CN202022233001 U CN 202022233001U CN 214036782 U CN214036782 U CN 214036782U
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- transmission shaft
- ring
- oil blanket
- planetary reducer
- bearing
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Abstract
The utility model discloses a sound sealing mechanism for planetary reducer transmission shaft, planetary reducer includes transmission shaft and casing, the casing has the shaft pipe end, be equipped with the bearing in the shaft pipe end, sound sealing mechanism includes the oil blanket seat, the oil blanket, the elasticity jump ring, and the sealing washer, it is concave to be equipped with the ring on the interior pipe wall of shaft pipe end, the oil blanket seat includes spacing outer lane and oil blanket ring chamber, be equipped with sealed annular on the periphery wall of spacing outer lane, spacing outer lane axial is spacing between the quiet bearing housing and the elasticity jump ring of bearing, the oil blanket sets up in the oil blanket ring chamber, the oil blanket respectively with the movable bearing housing looks butt of transmission shaft and bearing, the sealing washer sets up in sealed annular, the sealing washer seals the butt with the interior pipe wall of shaft pipe end. The utility model discloses satisfy the sealed demand of sound of planetary reducer transmission shaft, possess compact structure's characteristics simultaneously, occupation space is less. The assembly and disassembly are convenient and efficient, and the assembly, maintenance and repair operation are easy. The matching structure is reliable and stable, the manufacturing cost is effectively controlled, and the method is suitable for popularization and application.
Description
Technical Field
The utility model relates to a sound sealing mechanism for planetary reducer transmission shaft belongs to seal structure's technical field.
Background
The planetary reducer operation changes the in-process and need lubricate the gear, and the most common lubrication mode is exactly to add lubricating oil, and needs good leakproofness at the machine operation in-process, and traditionally seal structure is comparatively complicated, cooperatees with the transmission shaft including loading the multiple sealed shell seat on the shell seat and realizes sound seal, and occupation space is great, in addition, the movable seal circle that sets up in it wears easily at the rotatory operation in-process of transmission shaft, leads to sealed inefficacy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the not enough of above-mentioned prior art, to the complicated and easy wearing and tearing scheduling problem of traditional planetary reducer axle head seal structure, provide the sound sealing mechanism who is used for the planetary reducer transmission shaft.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
a dynamic and static sealing mechanism for a transmission shaft of a planetary reducer, the planetary reducer comprises the transmission shaft and a casing, the casing is provided with a shaft tube end extending along the transmission shaft, a bearing matched and connected with the transmission shaft is arranged in the shaft tube end,
the dynamic and static sealing mechanism comprises an oil seal seat, an oil seal, an elastic clamp spring and a sealing ring, the inner pipe wall of the end of the shaft pipe is provided with a ring recess for matching the elastic clamp spring,
the oil blanket seat includes spacing outer lane and oil blanket ring cavity, be equipped with sealed annular on the periphery wall of spacing outer lane, spacing outer lane axial is spacing the static bearing seat of bearing with between the elasticity jump ring, the oil blanket sets up in the oil blanket ring cavity, the oil blanket respectively with the transmission shaft reaches the dynamic bearing seat looks butt of bearing, the sealing washer sets up in the sealed annular, and the sealing washer with the sealed butt of inner tube wall of shaft pipe end.
Preferably, the oil seal ring cavity comprises a first ring wall and a second ring wall, a gap is reserved between the first ring wall and the transmission shaft, and a gap is reserved between the second ring wall and a movable bearing seat of the bearing.
Preferably, a hollow-out part is arranged on the second annular wall.
Preferably, two free ends of the elastic clamp spring are provided with radial protrusions, and the radial protrusions are provided with pore channels.
The beneficial effects of the utility model are mainly embodied in that:
1. satisfy the sound sealed demand of planetary reducer transmission shaft, possess compact structure's characteristics simultaneously, occupation space is less.
2. The assembly and disassembly are convenient and efficient, and the assembly, maintenance and repair operation are easy.
3. The matching structure is reliable and stable, the manufacturing cost is effectively controlled, and the method is suitable for popularization and application.
Drawings
Fig. 1 is the utility model discloses a sound sealing mechanism's for planetary reducer transmission shaft structural schematic.
Fig. 2 is the utility model discloses an explosion structure schematic diagram that is used for the sound sealing mechanism of planetary reducer transmission shaft.
Detailed Description
The utility model provides a sound sealing mechanism for planetary reducer transmission shaft. The technical solution of the present invention will be described in detail below with reference to the accompanying drawings so as to be easier to understand and grasp.
A sound sealing mechanism for planetary reducer transmission shaft, as shown in fig. 1 and fig. 2, planetary reducer includes transmission shaft 1 and casing, and the casing has shaft tube end 2 along transmission shaft 1 axial extension, is equipped with in the shaft tube end 2 and connects the bearing 3 that connects with transmission shaft 1 mutually, and sealing mechanism sets up in the outside of shaft tube end 2 traditionally, and the structure is complicated and occupation space is more.
In the scheme, as shown in fig. 1 and 2, the dynamic and static sealing mechanism comprises an oil seal seat 4, an oil seal 5, an elastic snap spring 6 and a sealing ring 7, and an annular recess 21 for matching the elastic snap spring 6 is arranged on the inner pipe wall of the shaft pipe end 2.
The oil seal seat 4 comprises a limit outer ring 41 and an oil seal ring cavity 42, a seal ring groove 411 is formed in the peripheral wall of the limit outer ring 41, the limit outer ring 41 is axially limited between a static bearing seat 31 and an elastic clamp spring 6 of a bearing 3, an oil seal 5 is arranged in the oil seal ring cavity 42, the oil seal 5 is respectively abutted against a movable bearing seat 32 of a transmission shaft 1 and the bearing 3, a seal ring 7 is arranged in the seal ring groove 411, and the seal ring 7 is abutted against the inner wall of a shaft tube end 2 in a sealing manner.
The specific implementation process and principle description are as follows:
the dynamic and static sealing mechanism is arranged in an annular space formed by the transmission shaft 1 and the shaft tube end 2, and the design such as additional connection of a sealing end cover and the like is not needed, so that the structure is compact, and the space utilization rate is improved.
The limiting outer ring 41 is limited between the static bearing seat 31 and the elastic clamp spring 6, static sealing is achieved between the limiting outer ring 41 and the shaft tube end 2 through the sealing ring 7, and high sealing reliability is achieved.
And the oil seal 5 is respectively abutted with the movable bearing seat 32 of the transmission shaft 1 and the bearing 3, and the oil seal 5 can realize dynamic sealing and static sealing requirements and meet the static and dynamic sealing requirements of the transmission shaft 1.
In one embodiment, the oil seal ring cavity 42 includes a first ring wall 8 and a second ring wall 9, a gap is left between the first ring wall 8 and the transmission shaft 1, and a gap is left between the second ring wall 9 and a movable bearing seat of the bearing.
Specifically, the clearance can prevent contact wear during rotation operation, effectively protect the oil seal seat 4, the bearing 3 and the transmission shaft, and in addition, the clearance is generally small, for example, controlled between 0.5mm and 1mm, and reasonable clearance adjustment can be performed according to the viscosity of oil products, so that oil storage leakage can be effectively reduced.
In one embodiment, the second annular wall 9 is provided with a hollow portion 91, which enables the communication between the bearing lubrication compartment and the oil seal annular cavity 42, i.e. enables the oil seal to be filled with the same source of lubricating oil, thereby meeting the oil seal requirement.
In one embodiment, the two free ends of the spring 6 are provided with radial projections 61, and the radial projections 61 are provided with holes 62.
Specifically, the two radial protrusions 61 are exposed, and the two free ends can be pressed together through the through hole 62 of the external tool, so that the oil seal seat 4 can be conveniently detached and taken out, and maintenance is realized.
Can discover through the above description, the utility model is used for the sound sealing mechanism of planetary reducer transmission shaft satisfies the sound sealed demand of planetary reducer transmission shaft, possesses compact structure's characteristics simultaneously, and occupation space is less. The assembly and disassembly are convenient and efficient, and the assembly, maintenance and repair operation are easy. The matching structure is reliable and stable, the manufacturing cost is effectively controlled, and the method is suitable for popularization and application.
The above technical solutions of the present invention have been fully described, and it should be noted that the present invention is not limited by the above description, and all technical solutions formed by equivalent transformation or equivalent transformation adopted by the spirit of the present invention in the aspects of structure, method or function by those of ordinary skill in the art all fall within the protection scope of the present invention.
Claims (4)
1. A sound sealing mechanism for planetary reducer transmission shaft, planetary reducer includes transmission shaft and casing, the casing has the edge the central siphon end that the transmission shaft extends, be equipped with in the central siphon end with the bearing that the transmission shaft matches and connects, its characterized in that:
the dynamic and static sealing mechanism comprises an oil seal seat, an oil seal, an elastic clamp spring and a sealing ring, the inner pipe wall of the end of the shaft pipe is provided with a ring recess for matching the elastic clamp spring,
the oil blanket seat includes spacing outer lane and oil blanket ring cavity, be equipped with sealed annular on the periphery wall of spacing outer lane, spacing outer lane axial is spacing the static bearing seat of bearing with between the elasticity jump ring, the oil blanket sets up in the oil blanket ring cavity, the oil blanket respectively with the transmission shaft reaches the dynamic bearing seat looks butt of bearing, the sealing washer sets up in the sealed annular, and the sealing washer with the sealed butt of inner tube wall of shaft pipe end.
2. The dynamic and static sealing mechanism for the transmission shaft of the planetary reducer as claimed in claim 1, wherein:
the oil seal ring cavity comprises a first ring wall and a second ring wall, a gap is reserved between the first ring wall and the transmission shaft, and a gap is reserved between the second ring wall and a movable bearing seat of the bearing.
3. The dynamic and static sealing mechanism for the transmission shaft of the planetary reducer as claimed in claim 2, wherein:
and a hollow part is arranged on the second annular wall.
4. The dynamic and static sealing mechanism for the transmission shaft of the planetary reducer as claimed in claim 1, wherein:
and two free ends of the elastic clamp spring are provided with radial bulges, and the radial bulges are provided with pore channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022233001.4U CN214036782U (en) | 2020-10-09 | 2020-10-09 | Dynamic and static sealing mechanism for transmission shaft of planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022233001.4U CN214036782U (en) | 2020-10-09 | 2020-10-09 | Dynamic and static sealing mechanism for transmission shaft of planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036782U true CN214036782U (en) | 2021-08-24 |
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ID=77352130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022233001.4U Active CN214036782U (en) | 2020-10-09 | 2020-10-09 | Dynamic and static sealing mechanism for transmission shaft of planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214036782U (en) |
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2020
- 2020-10-09 CN CN202022233001.4U patent/CN214036782U/en active Active
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