CN214617790U - Plug sealing device and gear box thereof - Google Patents
Plug sealing device and gear box thereof Download PDFInfo
- Publication number
- CN214617790U CN214617790U CN202023340659.1U CN202023340659U CN214617790U CN 214617790 U CN214617790 U CN 214617790U CN 202023340659 U CN202023340659 U CN 202023340659U CN 214617790 U CN214617790 U CN 214617790U
- Authority
- CN
- China
- Prior art keywords
- sealing
- plug
- cylinder
- sealing washer
- flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model relates to a sealing member technical field discloses a plug sealing device and gear box thereof, including plug main part, seal ring and sealing washer, the plug main part includes hexagonal head mount pad, cylinder flange, screw thread fastening cylinder and the sealing washer installation cylinder that sets gradually at length direction, and the flange mounting locating surface of seal ring laminating cylinder flange sets up, sets up the recess on the sealing washer installation cylinder and is used for installing the sealing washer. The O-shaped sealing ring forms radial static seal with the sealing cylindrical surface of the sealed piece through extrusion deformation, the copper gasket seals the sealing end surface of the sealed piece through extrusion deformation, the two sealing structures jointly act to realize strong sealing of the plug, and even if the copper gasket fails, the O-shaped sealing ring still can ensure the sealing effect of the plug. The unloading groove can eliminate the stress concentration at the root of the thread surface on the thread fastening cylinder, and the risk of the screw plug breaking in the using process is reduced.
Description
Technical Field
The utility model relates to a sealing member technical field specifically, relates to a plug sealing device and gear box thereof.
Background
The gear box is the key drive disk assembly on the rail transit vehicle bogie, and the plug is the key fastening sealing member on the gear box, and the plug needs to play the effect of good sealed gear box, still need the effect of adsorbing iron fillings in the gear box, purifying lubricating oil simultaneously incidentally.
At present, the oil injection plug and the oil discharge plug of the rail transit gear box are sealed by adopting a structure that the magnetic plug is tightly sealed with a copper gasket, the sealing structure can meet the requirement that the gear box only needs to replace the copper gasket in the process of regularly replacing lubricating oil, the sealing effect of the gear box can be ensured, and the process of frequently replacing the lubricating oil in the rail transit gear box has the characteristics of simple structure and low cost.
However, because the sealing of the gear box is ensured only by the extrusion deformation of the sealing copper gasket, the requirements on the perpendicularity of the hole end face of the plug mounting seat of the gear box body to the axis of the hole seat and the surface roughness of the end face of the hole seat are strict, the requirements on the perpendicularity of the flange face of the magnetic plug and the plug axis and the roughness of the flange face are also high, the measurement difficulty of the perpendicularity of the thread axis and the end face is high, the detection precision is low and complex, and the sealing effect cannot be ensured.
According to statistics of related application cases, oil leakage and oil leakage are more at the sealing part of the oil discharge magnetic plug of the gear box, the leakage of lubricating oil can not only influence the service life of a transmission gear and a bearing, but also pollute the environment along the track, and simultaneously, the operation and maintenance cost of the gear box can be increased.
Disclosure of Invention
The utility model provides a technical problem lie in overcoming prior art's defect, provide a simple structure, can ensure the plug sealing device of sealed effect, still provide one kind simultaneously and be equipped with plug sealing device's gear box.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a plug sealing device, includes plug main part, seal ring and sealing washer, and the plug main part includes hexagon head mount pad, cylinder flange, screw thread fastening cylinder and the sealing washer installation cylinder that sets gradually at length direction, and the flange mounting locating surface of seal ring laminating cylinder flange sets up, sets up the recess on the sealing washer installation cylinder and is used for installing the sealing washer.
Further, the sealing washer is a copper washer.
Further, the sealing washer is the O type sealing washer.
Furthermore, an unloading groove is also arranged between the cylindrical flange and the thread fastening cylinder.
Furthermore, the hexagonal head mounting seat is provided with at least one anti-loosening iron wire mounting hole.
Furthermore, the sealing washer installation cylinder terminal surface is equipped with the tang, and the magnetic core is established to the tang is embedded, and the magnetic core is arranged in getting rid of by the impurity in the interior fluid of sealing member.
A gear box is provided with the plug sealing device.
Compared with the prior art, the utility model discloses following beneficial effect has:
1) the copper gasket seals the sealing end face of the sealed piece through extrusion deformation, the O-shaped sealing ring forms radial static seal with the sealing cylindrical surface of the sealed piece through extrusion deformation, the radial static seal has the axial sealing effect, the two sealing structures act together to realize strong sealing of the plug, and even if the copper gasket fails in sealing, the O-shaped sealing washer still can ensure the sealing effect of the plug.
2) The unloading groove can eliminate the stress concentration at the root of the thread surface on the thread fastening cylinder, and the risk of the screw plug breaking in the using process is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a plug sealing device according to embodiment 1 (a partial sectional view including a sealing gasket, a sealing ring, and a magnetic core);
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic view of an application of the plug sealing device according to embodiment 1.
Detailed Description
The invention will be further described with reference to specific embodiments, wherein the drawings are designed solely for the purpose of illustration and not as a definition of the limits of the patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 3, a plug sealing device as shown in fig. 1 is arranged at a mounting hole of a plug mounting seat 1 of the gear box, the plug sealing device comprises a plug main body 4 which is in fit connection with the mounting hole, and a sealing washer 2 and a sealing washer 3 which are arranged on the plug main body, the plug main body comprises a hexagon head mounting seat 41, a cylindrical flange 42, a thread fastening cylinder 43 and a sealing washer mounting cylinder 44 which are sequentially arranged in the length direction, the hexagon head mounting seat 41 and the cylindrical flange 42 are positioned outside the mounting hole of the gear box, and the hexagon head mounting seat 41 is designed into a hexagonal prism structure so as to fasten the plug sealing device by using a hexagon head bolt wrench; the threaded fastening cylinder 43 is provided with an external thread 431, and the mounting hole is provided with an internal thread matched with the threaded fastening cylinder at the corresponding position of the threaded fastening cylinder so as to ensure that the plug sealing device is fastened at the position of the gear box; the cylindrical flange 42 is provided with a flange mounting and positioning surface 421, the sealing washer 2 is arranged by being attached to the flange mounting and positioning surface, and the sealing washer is a copper washer; the sealing ring mounting cylinder 44 is provided with a groove 441 for mounting the sealing ring 3, the sealing ring is preferably an O-shaped sealing ring, the O-shaped sealing ring can form radial static sealing with a sealing cylindrical surface of a plug mounting seat on the gear box, namely the O-shaped sealing ring has the functions of radial sealing and axial sealing, and meanwhile, the external thread on the cylinder 43 is fastened by screwing the thread, so that the copper gasket can be extruded to deform, and the sealing of a flange mounting positioning surface is realized; the gear box is sealed by the sealing structures at the two positions, and the sealing effect can be guaranteed by the O-shaped sealing ring even if the copper gasket fails, so that the risk of oil leakage and oil leakage of lubricating oil in the gear box is effectively guaranteed.
The situation that the root of the external thread of the threaded fastening cylinder is concentrated in stress and further the risk of fracture can be caused by frequent screwing of the plug sealing device in the installation process is fully considered in the embodiment, and the unloading groove 45 is particularly arranged between the cylindrical flange 42 and the threaded fastening cylinder 43, so that the cylindrical flange and the threaded fastening cylinder are in smooth transition connection, and the occurrence of the situation that the plug sealing device is fractured in the use process can be reduced to the maximum extent.
As shown in fig. 2, the hexagonal head mounting base 41 is further provided with two crossed anti-loosening iron wire mounting holes 46, and an anti-rust iron wire can be used in the holes for winding, so that the screw plug sealing device is prevented from loosening, and the risk of oil leakage and oil leakage is avoided.
Because of probably containing various impurity in the lubricating oil in the gear box, wherein inevitably can have iron fillings impurity, for avoiding iron fillings impurity to exert an influence to lubrication action, can set up tang 47 at sealing washer installation cylinder 44 terminal surface to at the embedded magnetic core 5 that establishes of tang, when lubricating oil flow through magnetic core position department, iron fillings impurity in the lubricating oil can be fully adsorbed to magnetic core 5, plays the effect of purifying lubricating oil.
The plug main body of this embodiment forms through cold-heading blank processing back, has the characteristics that the tissue is compact, intensity is high, toughness is good, plug sealing device whole part is few, simple structure, sealed effect is good.
It should be understood that the above-mentioned embodiments are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a plug sealing device, its characterized in that, includes plug main part, seal ring and sealing washer, and the plug main part includes hexagon head mount pad, cylinder flange, screw thread fastening cylinder and the sealing washer installation cylinder that sets gradually at length direction, and the flange mounting locating surface of seal ring laminating cylinder flange sets up, sets up the recess on the sealing washer installation cylinder and is used for installing the sealing washer.
2. The plug seal arrangement according to claim 1, wherein the sealing gasket is a copper gasket.
3. The plug seal of claim 1 wherein the seal ring is an O-ring seal.
4. The plug seal device according to claim 1, wherein an unloading groove is further provided between the cylindrical flange and the threaded fastening cylinder.
5. The plug seal device according to claim 1, wherein the hex head mounting base defines at least one lockwire mounting hole.
6. The plug seal device according to claim 1, wherein the end face of the mounting cylinder of the seal ring is provided with a spigot, and a magnetic core is embedded in the spigot and used for removing impurities in the fluid in the sealed piece.
7. A gearbox, characterized in that a plug seal device according to any one of claims 1 to 6 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340659.1U CN214617790U (en) | 2020-12-31 | 2020-12-31 | Plug sealing device and gear box thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023340659.1U CN214617790U (en) | 2020-12-31 | 2020-12-31 | Plug sealing device and gear box thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617790U true CN214617790U (en) | 2021-11-05 |
Family
ID=78434946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023340659.1U Active CN214617790U (en) | 2020-12-31 | 2020-12-31 | Plug sealing device and gear box thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617790U (en) |
-
2020
- 2020-12-31 CN CN202023340659.1U patent/CN214617790U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070122232A1 (en) | Ball joint assembly | |
| US5176215A (en) | Composite drain plug | |
| CN214617790U (en) | Plug sealing device and gear box thereof | |
| WO2014187085A1 (en) | Automobile steering intermediate rocker arm assembly | |
| CN219082128U (en) | Electronic parking brake caliper, electronic parking brake and vehicle | |
| CN204610558U (en) | A kind of two flange linear bearing assembly | |
| CN102086960B (en) | Self-tapping oil cup and manufacturing method thereof | |
| CN111661181B (en) | Screw rod crawler belt adjusting device with lubricating and corrosion-preventing structure | |
| CN211648752U (en) | Automobile fastener with prolonged service life | |
| CN219712267U (en) | Quick mounting structure of shafting part | |
| CN202301363U (en) | Connecting bolt of coupler | |
| CN209164552U (en) | A kind of sealing bolt structure preventing gearbox oil leak | |
| CN210502107U (en) | Double-oil-seal sealing structure on outer side of hub | |
| CN220168375U (en) | Bearing sealing ring of automobile belt pulley | |
| JP4709403B2 (en) | Bolt joint seal structure | |
| CN214146573U (en) | Bearing with square sealing seat | |
| CN201764230U (en) | Self-tapping oil cup | |
| CN218110618U (en) | Device for protecting a gasket | |
| CN220302689U (en) | Bearing pretightening force adjusting structure for speed reducer | |
| CN213969862U (en) | Framework oil seal press-fitting structure | |
| CN115143283B (en) | High-pressure metal corrugated pipe mechanical sealing element | |
| CN220622437U (en) | Locking screw fastening structure | |
| CN220551357U (en) | Rust-proof lubrication nut | |
| CN213870647U (en) | Corrosion-resistant fastener | |
| CN117267379B (en) | Oil seal structure with good sealing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |