CN219102318U - High-performance rotary joint - Google Patents
High-performance rotary joint Download PDFInfo
- Publication number
- CN219102318U CN219102318U CN202223316180.3U CN202223316180U CN219102318U CN 219102318 U CN219102318 U CN 219102318U CN 202223316180 U CN202223316180 U CN 202223316180U CN 219102318 U CN219102318 U CN 219102318U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- annular groove
- sealing ring
- rotary joint
- filler
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000009713 electroplating Methods 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 238000004372 laser cladding Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010791 quenching Methods 0.000 abstract description 3
- 230000000171 quenching effect Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Sealing Devices (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model provides a high-performance rotary joint, which comprises a mandrel, wherein an annular groove is formed in the position of the mandrel, which is connected with a sealing ring; the annular groove is filled with filler in a laser cladding mode, and the filler is made of iron-based alloy powder; the electroplating thickness of the outer surface of the mandrel is 0.05-0.06mm. The hardness of the part of the mandrel connected with the sealing ring can reach HRC55-60 before electroplating, and the part is not easy to wear, so that the service life is prolonged; and the performance is improved, the electroplating thickness is reduced, and the surface quenching process is eliminated, so that the cost is reduced.
Description
Technical Field
The utility model relates to the technical field of shield tunneling machine construction equipment, in particular to a high-performance rotary joint.
Background
The shield machine excavates through the rotary cutterhead. Therefore, a large amount of medium is required to be added to the cutting surface of the cutterhead continuously during construction, for example: water, foam, bentonite, hydraulic oil, air, etc. These media are transported through the rotary joint.
The rotary joint comprises a shell and a mandrel which is arranged in the shell and is rotationally connected, and the shell and the mandrel are sealed through a plurality of sealing rings. The traditional mandrel is made of 40Cr material, is finished after tempering (the hardness is HRC 32-36), is surface quenched (the hardness is HRC 52-55), and is electroplated with the thickness of a single side of 0.15mm after grinding. Due to the relatively low cleanliness of foam, water, bentonite, etc. and grease used for lubrication seals, particulate matter is entrained and can adsorb onto the seal ring, causing wear on the mandrel surface.
The repair is carried out by adopting a repair welding and reprocessing mode at the worn part, so that the mandrel is out of round due to high welding temperature, and the welding surface is easy to have air holes, so that the mandrel cannot reach the original size and performance.
Therefore, how to overcome the above-mentioned drawbacks is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In order to solve the technical problems in the background technology, the utility model discloses a high-performance rotary joint.
The utility model provides a high-performance rotary joint, which comprises a mandrel, wherein an annular groove is formed in the position of the mandrel, which is connected with a sealing ring; the annular groove is filled with filler in a laser cladding mode, and the filler is made of iron-based alloy powder; the electroplating thickness of the outer surface of the mandrel is 0.05-0.06mm.
The hardness of the part of the mandrel connected with the sealing ring can reach HRC55-60 before electroplating, and the part is not easy to wear, so that the service life is prolonged; and the performance is improved, the electroplating thickness is reduced, and the surface quenching process is eliminated, so that the cost is reduced.
When the mandrel is machined and assembled, position accumulated errors exist, so that the sealing ring part is positioned at the outer side of the annular groove, and the outer side part of the annular groove is worn, and therefore the problem is further improved and solved.
If the annular groove is too wide, waste is caused, and the cost is increased, so that the problem is further improved and solved, and particularly, the width of the annular groove is 1.5-2.5 times of the thickness of the sealing ring.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a front cross-sectional view of the present utility model;
FIG. 2 is an enlarged view at A in FIG. 1;
in the figure: 1. a mandrel; 2. an annular groove; 3. a seal ring; 4. a housing; 5. a fixing plate; 6. a filler; 7. an end cap.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Embodiment one:
as shown in fig. 1, the utility model is a high-performance rotary joint, which comprises a shell 4 and a mandrel 1 inserted into the shell 4. The two ends of the shell 4 are respectively provided with an end cover 7 which is locked and fixed through bolts. The end cap 7 is mounted on the fixing plate 5 by bolts and nuts. Ball bearings are arranged at two ends of the mandrel 1 and are rotatably connected with the shell 4.
The inner wall of casing 4 is provided with a plurality of bulge loops that the interval was arranged, and every bulge loop all joint has two sealing washer 3, with dabber 1 sealing connection. The inner wall of the end cover 7 is also clamped with a sealing ring 3 which is in sealing connection with the mandrel 1.
As shown in fig. 2, an annular groove 2 is formed in the outer wall of the mandrel 1, which is connected with a sealing ring 3; the annular groove 2 is filled with a filler 6 in a laser cladding mode, and the filler 6 is made of iron-based alloy powder Fe60. The electroplating thickness of the outer surface of the mandrel 1 is 0.05mm. In embodiments thereof, the plating thickness may also be 0.06mm.
The hardness of the part of the mandrel 1 connected with the sealing ring 3 can reach HRC55-60 before electroplating, and the mandrel is not easy to wear, so that the service life is prolonged; and the performance is improved, the electroplating thickness is reduced, and the surface quenching process is eliminated, so that the cost is reduced.
Embodiment two:
the difference from the first embodiment is that: the width of the annular groove 2 is 1.5-2.5 times of the thickness of the sealing ring 3. In this embodiment, the annular groove 2 has a width twice the thickness of the seal ring 3. The arrangement of the width of the groove ensures that the packing 6 covers the sealing ring 3 when the mandrel 1 is processed and assembled to generate position accumulated errors, and waste is avoided.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (3)
1. High performance rotary joint, including dabber (1), its characterized in that:
an annular groove (2) is formed in the position, connected with the sealing ring (3), of the mandrel (1);
filling a filler (6) in the annular groove (2) in a laser cladding mode, wherein the filler (6) is made of iron-based alloy powder;
the electroplating thickness of the outer surface of the mandrel (1) is 0.05-0.06mm.
2. A high performance swivel according to claim 1, wherein: the annular groove (2) is symmetrically arranged relative to the sealing ring (3), and the groove width of the annular groove is larger than the thickness of the sealing ring (3).
3. A high performance swivel according to claim 2, wherein: the width of the annular groove (2) is 1.5-2.5 times of the thickness of the sealing ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223316180.3U CN219102318U (en) | 2022-12-09 | 2022-12-09 | High-performance rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223316180.3U CN219102318U (en) | 2022-12-09 | 2022-12-09 | High-performance rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219102318U true CN219102318U (en) | 2023-05-30 |
Family
ID=86465113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223316180.3U Active CN219102318U (en) | 2022-12-09 | 2022-12-09 | High-performance rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219102318U (en) |
-
2022
- 2022-12-09 CN CN202223316180.3U patent/CN219102318U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |