CN209838640U - Powder tank car discharge tube rotary joint - Google Patents
Powder tank car discharge tube rotary joint Download PDFInfo
- Publication number
- CN209838640U CN209838640U CN201920522814.XU CN201920522814U CN209838640U CN 209838640 U CN209838640 U CN 209838640U CN 201920522814 U CN201920522814 U CN 201920522814U CN 209838640 U CN209838640 U CN 209838640U
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- central shaft
- shaft
- wall
- mounting groove
- hole
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Abstract
The utility model discloses a rotary joint of a powder tank car discharge pipe, which comprises a shell, a central shaft, a stewart seal ring for the shaft, a circlip for the hole and deep groove ball bearings, wherein a first flange plate is connected with one end of the discharge pipe during use, a second flange plate is arranged on an air compressor, the shell and the central shaft are in sealed rotary connection through the stewart seal ring for the shaft and the deep groove ball bearings, the stewart seal ring for the shaft is elastically deformed by an O-shaped rubber ring when the polytetrafluoroethylene ring is worn, so that the polytetrafluoroethylene ring still clings to the outer wall of the shaft body of the central shaft, the two deep groove ball bearings are arranged side by side and arranged in a bearing mounting groove, the ends of the shaft are positioned by the circlip for the shaft, the circlip for the hole and a bearing positioning convex wall, so as to improve the axial load of the rotary joint, and the, compared with the rotary joint of the discharge pipe of the existing powder tanker, the rotary joint has the characteristics of temperature resistance, wear resistance, stronger axial load capacity and longer service life.
Description
Technical Field
The utility model belongs to the technical field of rotary joint, concretely relates to be used for installing the rotary joint on powder tank car air compressor with powder tank car discharge tube connection.
Background
In order to avoid the problem that the discharge pipe of the powder tank truck is distorted and damaged in the operation process due to the fact that the discharge pipe of the powder tank truck is forgotten to be disassembled due to human negligence after being connected with the tank body of the powder tank truck, the discharge pipe of the powder tank truck is generally connected with an air compressor of the powder tank truck by adopting a rotary joint. The rotary joint of the discharge pipe of the existing powder tank truck consists of two threaded connecting pieces and an outer sleeve body, wherein one threaded connecting piece is in threaded connection with an air compressor of the powder tank truck, the other threaded connecting piece is in threaded connection with one end of the discharge pipe of the powder tank truck, and the two threaded connecting pieces are in sealed rotary connection through the outer sleeve body; above-mentioned current powder tank car discharge tube rotary joint is in the in-service use process, and its seal structure easily receives high temperature high pressure to influence and appears damaging, the sealing member temperature resistant wear resistance is relatively poor, and rotary joint's axial load capacity is relatively weak, install the bearing in the overcoat body and easily appear exploding the wall problem, and rotary joint's life is shorter, remains to improve.
Disclosure of Invention
The utility model aims at providing a powder tank car discharge tube rotary joint that temperature resistant is wear-resisting, axial load capacity is stronger, life is longer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a rotary joint of a discharging pipe of a powder tanker comprises a shell, a central shaft, a steckel seal ring for the shaft, a circlip for a hole and a deep groove ball bearing, wherein a first flange plate is formed on the outer wall of the front end of the shell, a central shaft connecting hole is formed in the rear end of the shell, a first vent hole communicated with the central shaft connecting hole is formed in the front end of the shell, two seal ring mounting grooves are formed in the inner wall of a front side hole of the central shaft connecting hole in parallel, a first circlip mounting groove is formed in the inner wall of a tail end hole of the central shaft connecting hole, and a bearing mounting groove is formed in the inner wall of the central shaft connecting hole between; the outer wall of the central shaft is plated with a chromium coating with the thickness of 3mm, a second vent hole is formed in the central shaft in a penetrating mode, a second flange plate is arranged on the outer wall of the rear end of the central shaft in a forming mode, a second retaining ring mounting groove is formed in the outer wall of the central shaft in the front of the bearing mounting groove in the forming mode, a bearing positioning convex wall is formed in the outer wall of the central shaft in the protruding mode and located behind the bearing mounting groove in the protruding mode, the shaft body of the central shaft is inserted into a central shaft connecting hole of the shell, a steckel seal ring for a shaft is installed in the sealing ring mounting groove, a polytetrafluoroethylene ring of the steckel seal ring for the shaft is tightly attached to the outer wall of the central shaft, an elastic check ring for the shaft is installed in the second retaining ring mounting groove, an elastic check ring for holes is installed in the first check ring mounting groove, The end part of the hole elastic retainer ring and the bearing positioning convex wall are positioned to realize positioning and installation in the bearing installation groove.
The utility model discloses following beneficial effect has:
the utility model relates to a powder tank car discharge tube rotary joint, the one end of discharge tube is connected through first ring flange to the casing when using, the center pin passes through the second ring flange and installs on air compressor, realize sealed swivelling joint through two axle special seal sealing washers and two deep groove ball bearings between casing and the center pin, and the plating has the thick chromium coating of one deck 3mm on the outer wall of center pin, current powder tank car discharge tube rotary joint has the temperature resistant wear-resisting relatively, axial load capacity is stronger, longer characteristics of life.
Drawings
FIG. 1 is a schematic cross-sectional view of a rotary joint of a discharge pipe of a powder tanker;
fig. 2 is a schematic view of a three-dimensional structure of a rotary joint of a discharge pipe of the powder tank truck.
In the figure: 1. a housing; 2. a central shaft; 3. the shaft is sealed by a steckel seal ring; 4. a circlip for the shaft; 5. a circlip for a hole; 6. a deep groove ball bearing; 10. a first vent hole; 11. a first flange plate; 12. a central shaft connecting hole; 13. a sealing ring mounting groove; 14. a bearing mounting groove; 15. a first retainer ring mounting groove; 20. a second vent hole; 21. a second flange plate; 22. a second retainer mounting groove; 23. the bearing locates the convex wall.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the invention.
As shown in fig. 1-2, the utility model relates to a powder tank car discharge tube rotary joint, including casing 1, center pin 2, axle is with steckel seal circle 3, axle circlip 4, hole circlip 5 and deep groove ball bearing 6, the shaping is provided with first ring flange 11 on the front end outer wall of casing 1, the shaping of the rear end of casing 1 is provided with center pin connecting hole 12, the shaping has first air vent 10 communicated with center pin connecting hole 12 inside the front end of casing 1, the shaping is provided with two sealing washer mounting grooves 13 side by side on the front side opening inner wall of center pin connecting hole 12, the shaping has first retaining ring mounting groove 15 on the tail end hole inner wall of center pin connecting hole 12, the shaping that is located between sealing washer mounting groove 13 and first retaining ring mounting groove 15 on the hole inner wall of center pin connecting hole 12 is provided with bearing mounting; a chromium coating with the thickness of 3mm is plated on the outer wall of the central shaft 2, a second vent hole 20 is formed in the central shaft 2 in a penetrating mode, a second flange 21 is formed on the outer wall of the rear end of the central shaft 2, a second retaining ring mounting groove 22 is formed in the outer wall of the central shaft 2 in front of the bearing mounting groove 14, a bearing positioning convex wall 23 is formed on the outer wall of the central shaft 2 in a protruding mode and located behind the bearing mounting groove 14, the shaft body of the central shaft 2 is inserted into the central shaft connecting hole 12 of the shell 1, a shaft-used stet seal ring 3 is installed in the seal ring mounting groove 13, a polytetrafluoroethylene ring of the shaft-used stet seal ring 3 is tightly attached to the outer wall of the central shaft 2, a shaft-used elastic check ring 4 is installed on the second retaining ring mounting groove 22, a hole-used elastic check ring 5 is installed on the first retaining ring mounting groove 15, the two deep groove ball bearings 6 are arranged side by side and installed in the bearing installation groove 14, and the ends of the two deep groove ball bearings are positioned and installed in the bearing installation groove 14 by the shaft circlip 4, the hole circlip 5 and the bearing positioning convex wall 23.
The utility model discloses powder tank car discharge tube rotary joint, casing 1 connects the one end of discharge tube through first ring flange 11 when using, center pin 2 passes through second ring flange 21 and installs on air compressor, realize sealed swivelling joint through two axle-used steckel seal circle 3 and two deep groove ball bearing 6 between casing 1 and the center pin 2, axle-used steckel seal circle 3 can make the polytetrafluoroethylene circle still hug closely the axis body outer wall of center pin 2 by its O type rubber circle elastic deformation when its polytetrafluoroethylene circle appears wearing and tearing, two deep groove ball bearing 6 set up side by side and install in bearing mounting groove 14 and fix a position the axial load that can improve rotary joint to its tip by axle-used circlip 4, hole-used circlip 5 and bearing location convex wall 23, and the plating has the thick chromium coating of one deck 3mm on the outer wall of center pin 2, relative current powder tank car discharge tube rotary joint has temperature resistant wear-resisting, The axial load capacity is stronger, the longer characteristics of life.
Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.
Claims (1)
1. The utility model provides a powder tank car discharge tube rotary joint which characterized in that: comprises a shell (1), a central shaft (2), a shaft-used Stent seal ring (3), a shaft-used elastic retainer ring (4), a hole-used elastic retainer ring (5) and a deep groove ball bearing (6), a first flange plate (11) is formed on the outer wall of the front end of the shell (1), a central shaft connecting hole (12) is formed in the rear end of the shell (1), a first vent hole (10) communicated with the central shaft connecting hole (12) is formed in the front end of the shell (1), two sealing ring mounting grooves (13) are formed in the inner wall of a front side hole of the central shaft connecting hole (12) side by side, a first retainer ring mounting groove (15) is formed in the inner wall of a tail end hole of the central shaft connecting hole (12), and a bearing mounting groove (14) is formed in the inner wall of the central shaft connecting hole (12) between the sealing ring mounting groove (13) and the first retainer ring mounting groove (15);
a chromium coating with the thickness of 3mm is plated on the outer wall of the central shaft (2), a second vent hole (20) is formed in the central shaft (2) in a penetrating mode, a second flange (21) is formed on the outer wall of the rear end of the central shaft (2), a second retaining ring mounting groove (22) is formed in the outer wall of the shaft body of the central shaft (2) in front of the bearing mounting groove (14), a bearing positioning convex wall (23) is formed in the outer wall of the shaft body of the central shaft (2) in a protruding mode in the rear of the bearing mounting groove (14), the shaft body of the central shaft (2) is inserted into a central shaft connecting hole (12) of the shell (1), a steckel seal ring (3) for the shaft is installed in a seal ring mounting groove (13), a polytetrafluoroethylene ring of the steckel seal ring (3) for the shaft is tightly attached to the outer wall of the shaft body of the central shaft (2), and, circlip (5) are installed on first retaining ring mounting groove (15) for the hole, and deep groove ball bearing (6) suit is just including two on the axis body of center pin (2), and two deep groove ball bearing (6) set up side by side and install in bearing mounting groove (14) and fix a position its tip by circlip (4), circlip (5) and bearing location convex wall (23) are used to the hole and realize the location and install in bearing mounting groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522814.XU CN209838640U (en) | 2019-04-17 | 2019-04-17 | Powder tank car discharge tube rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920522814.XU CN209838640U (en) | 2019-04-17 | 2019-04-17 | Powder tank car discharge tube rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838640U true CN209838640U (en) | 2019-12-24 |
Family
ID=68911962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920522814.XU Active CN209838640U (en) | 2019-04-17 | 2019-04-17 | Powder tank car discharge tube rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209838640U (en) |
-
2019
- 2019-04-17 CN CN201920522814.XU patent/CN209838640U/en active Active
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