CN210566155U - Oil seal structure for underwater reamer gear box of cutter suction dredger - Google Patents
Oil seal structure for underwater reamer gear box of cutter suction dredger Download PDFInfo
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- CN210566155U CN210566155U CN201920915546.8U CN201920915546U CN210566155U CN 210566155 U CN210566155 U CN 210566155U CN 201920915546 U CN201920915546 U CN 201920915546U CN 210566155 U CN210566155 U CN 210566155U
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- gear box
- oil
- gravity
- oil pocket
- suction dredger
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Abstract
The utility model discloses an oil blanket structure for cutter suction dredger underwater reamer gear box, including the gear box, its characterized in that, the gear box is equipped with the output shaft, be equipped with the axle sleeve on the output shaft, be equipped with sealing washer and spacer ring on the axle sleeve, be equipped with gravity oil pocket, high-order oil tank and lubricating oil pocket on the gear box, the end of gravity oil pocket is equipped with the floating seal ring, and the axle sleeve sets up in the below of gravity oil pocket, high-order oil tank and lubricating oil pocket; the utility model discloses set up independent spacer ring of twice, three sealing washers, leave the clearance between spacer ring and the axle sleeve, guarantee that the gear box can not be rotatory along with the output shaft at during operation spacer ring, sealing washer, let the sealing washer play sealed effect, effectually prevented that the gravity oil from revealing to the gear box inside, prevent that the sea water from getting into the gravity cycle oil pocket, also prevent that the sea water from getting into inside the gear box.
Description
Technical Field
The utility model belongs to the technical field of the gear box crude oil seals, concretely relates to an oil blanket structure that is used for cutter suction dredger reamer gear box under water.
Background
The cutter suction dredger underwater reamer gear box crude oil seal ring is arranged on the output shaft in an interference manner, and only comprises a spacer ring and two seal rings, the spacer ring and the shaft sleeve are forged into a whole, and the seal rings synchronously rotate while rotating along with the shaft, so that the radial outer surface of the seal ring is abraded, and the seal ring is made to fail; when the sealing ring is invalid, the gravity circulating oil enters the gear box, and then the high-level pressure to the seawater cannot be maintained after the liquid level is reduced; the floating seal ring can not bear the pressure of a single side, the leakage is carried out under the pressure of seawater, the seawater enters the gravity circulating oil cavity and enters the gear box along with the gravity circulating oil, and the water enters the gear box.
Disclosure of Invention
The utility model discloses a solve sealing washer synchronous revolution or wearing and tearing, make the sealing washer inefficacy, the sea water gets into gear box scheduling problem, provides an oil blanket structure that is used for cutter suction dredger reamer gear box under water.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the utility model provides an oil blanket structure for cutter suction dredger reamer gear box under water, includes the gear box, its characterized in that, the gear box is equipped with the output shaft, be equipped with the axle sleeve on the output shaft, be equipped with sealing washer and spacer ring on the axle sleeve, be equipped with gravity oil pocket, high-order oil tank and lubricating oil pocket on the gear box, the end of gravity oil pocket is equipped with floats the seal ring, and the axle sleeve sets up in the below of gravity oil pocket, high-order oil tank and lubricating oil pocket.
Preferably, three sealing rings are arranged on the shaft sleeve.
Preferably, 2 independent spacer rings are arranged between the three sealing rings, and a gap is reserved between each spacer ring and the shaft sleeve.
Preferably, the seal ring includes, but is not limited to, a V-seal, a U-seal, an O-seal, a Y-seal, a hole YX-seal, and a shaft YX-seal.
Preferably, a round nut is arranged on the right side of the lubricating oil cavity.
The technical scheme has the following beneficial effects:
the utility model discloses leave the clearance between spacer ring and the axle sleeve, guarantee that the gear box can not be rotatory along with the output shaft at the during operation spacer ring, let the sealing washer play sealed effect, prevent that gravity oil from revealing to the gear box inside, also prevent that the sea water from getting into the gravity cycle oil pocket, again along with gravity cycle oil gets into the gear box, cause the gear box to intake.
The utility model discloses structurally simple, improve with low costsly, nevertheless very big reduction cost of maintenance, improved work efficiency, increased the productivity effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a structure view of the utility model.
FIG. 2 is an enlarged view of the portion A of the sleeve, the seal ring and the spacer ring.
In the figure: 1. the oil pump comprises an output shaft, 2, a high-level oil tank, 3, a shaft sleeve, 4, a sealing ring, 5, a spacer ring, 6, a floating seal ring, 7, a round nut, 8, a gravity oil cavity, 9 and a lubricating oil cavity.
Detailed Description
The invention will be further explained with reference to the drawings:
as shown in fig. 1-2, an oil seal structure for an underwater reamer gear box of a cutter suction dredger comprises a gear box, and is characterized in that the gear box is provided with an output shaft 1, the output shaft 1 is provided with a shaft sleeve 3, the shaft sleeve 3 is provided with a sealing ring 4 and a spacer ring 5, the gear box is provided with a gravity oil cavity 8, a high-level oil tank 2 and an oil slide cavity 9, the tail end of the gravity oil cavity 8 is provided with a floating seal ring 6, and the shaft sleeve 3 is arranged below the gravity oil cavity 8, the high-level oil tank 2 and the oil slide cavity 9. And three sealing rings 4 are arranged on the shaft sleeve 3. 2 spacer rings 5 are arranged between the three sealing rings 4, and gaps are reserved between the spacer rings and the shaft sleeve. The sealing rings include, but are not limited to, V-shaped sealing rings, U-shaped rings, O-shaped sealing rings, Y-shaped sealing rings, YX-shaped sealing rings for holes, and YX-shaped sealing rings for shafts. And a round nut 7 is arranged on the right side of the lubricating oil cavity 9.
The technical scheme for dismantling the crude oil seal ring is as follows:
1. before the oil seal ring is removed, the oil in the box body is clear, an air tightness test is carried out, the sealing condition of the box body is checked, and the pressure value in the box body is recorded every 10 minutes according to the actual condition.
2. After the external parts of the oil seal ring are removed, the surface of the output shaft neck is checked, protruding parts such as flash and the like are removed by a file, oilstone or metallographic abrasive paper, and the surface of the shaft neck at the contact part of the output shaft neck and the oil seal is protected.
3. The end part of the output shaft is provided with a tooling plate, the tooling plate is provided with a phi 470 inner spigot which is positioned at the shaft end and fixed at the shaft end through a 4-M60 bolt, 8M 20 screws penetrate through the tooling plate, the screws are firstly spot-welded on the end surface of the oil seal ring, and then the screws are fully welded on the end surface of the oil seal ring; if the tooling plate hinders the welding, can remove the tooling plate after the screw rod spot welding is fixed a position in oil seal ring, install the tooling plate after the welding is accomplished, pay attention to the protection of axle journal surface before the welding, tooling plate and 8M 20 screws are provided by south high tooth.
4. Coating calcium-based grease butter on the surface of a shaft neck, installing nuts at the end of an M20 screw rod, sequentially screwing each nut according to a cross shape, uniformly pulling out an oil seal ring, and taking out the oil seal ring by heating or cutting off the oil seal ring after most of the oil seal ring is moved out of an output through cover.
5. And taking out the internal oil seal, and cleaning and repairing the surface of the optical output shaft neck.
The utility model discloses the installation scheme as follows:
1. after the oil seal ring is removed, the actual depth dimension of the oil seal position at the inner opening of the output transparent cover is measured, the thickness of the spacer ring is actually repaired, and the compression amount of the seal ring seals arranged on the two sides of the spacer ring after assembly is ensured to meet the design requirement.
2. The surface of the shaft neck is coated with calcium-based grease, a distance ring is heated and sleeved on the output shaft in a hot mode, and the distance ring needs to be close to the shaft shoulder.
3. And a sealing ring, a spacer ring and an oil seal baffle are sequentially arranged.
4. And performing an air tightness pressure maintaining test, checking the sealing condition of the gravity oil cavity, and recording the pressure value in the cavity every 10 minutes according to the actual condition.
Claims (5)
1. The utility model provides an oil blanket structure for cutter suction dredger reamer gear box under water, includes the gear box, its characterized in that, and the gear box is equipped with output shaft (1), be equipped with axle sleeve (3) on output shaft (1), be equipped with sealing washer (4) and spacer ring (5) on axle sleeve (3), be equipped with gravity oil pocket (8), high-order oil tank (2) and lubricating oil pocket (9) on the gear box, the end of gravity oil pocket (8) is equipped with floats seal ring (6), and axle sleeve (3) set up the below at gravity oil pocket (8), high-order oil tank (2) and lubricating oil pocket (9).
2. The oil seal structure for the underwater reamer gearbox of the cutter suction dredger according to claim 1, wherein: and three sealing rings (4) are arranged on the shaft sleeve (3).
3. The oil seal structure for the underwater reamer gearbox of the cutter suction dredger according to claim 2, wherein: 2 independent spacer rings (5) are arranged between the three sealing rings (4), and gaps are reserved between the spacer rings and the shaft sleeve.
4. The oil seal structure for the underwater reamer gearbox of the cutter suction dredger according to claim 1, wherein: the sealing rings include, but are not limited to, V-shaped sealing rings, U-shaped rings, O-shaped sealing rings, Y-shaped sealing rings, YX-shaped sealing rings for holes, and YX-shaped sealing rings for shafts.
5. The oil seal structure for the underwater reamer gearbox of the cutter suction dredger according to claim 1, wherein: and a round nut (7) is arranged on the right side of the lubricating oil cavity (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920915546.8U CN210566155U (en) | 2019-06-18 | 2019-06-18 | Oil seal structure for underwater reamer gear box of cutter suction dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920915546.8U CN210566155U (en) | 2019-06-18 | 2019-06-18 | Oil seal structure for underwater reamer gear box of cutter suction dredger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566155U true CN210566155U (en) | 2020-05-19 |
Family
ID=70628629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920915546.8U Active CN210566155U (en) | 2019-06-18 | 2019-06-18 | Oil seal structure for underwater reamer gear box of cutter suction dredger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566155U (en) |
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2019
- 2019-06-18 CN CN201920915546.8U patent/CN210566155U/en active Active
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