CN219655253U - Sealing device for extruder perforation tail rod - Google Patents
Sealing device for extruder perforation tail rod Download PDFInfo
- Publication number
- CN219655253U CN219655253U CN202320618424.9U CN202320618424U CN219655253U CN 219655253 U CN219655253 U CN 219655253U CN 202320618424 U CN202320618424 U CN 202320618424U CN 219655253 U CN219655253 U CN 219655253U
- Authority
- CN
- China
- Prior art keywords
- wear
- tail rod
- sealing device
- extruder
- perforation
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model belongs to the field of nonferrous metal extrusion forming equipment, and particularly relates to a sealing device for a perforated tail rod of an extruder. The sealing device for the perforating tail rod of the extruder has the advantages of simple structure, low manufacturing cost and good sealing effect, and can effectively prolong the service life of the perforating tail rod and reduce the production cost.
Description
Technical Field
The utility model belongs to the field of nonferrous metal extrusion forming equipment, and particularly relates to a sealing device for a perforated tail rod of an extruder.
Background
Hot piercing extrusion of solid ingots using an extruder to obtain seamless tubes is a common technique in the field of metal material manufacture. The perforation cogging processing generally adopts a double-acting extruder, wherein the double-acting extruder comprises a perforation hydraulic power system and an extrusion hydraulic power system, and the outer wall of a perforation tail rod is sleeved with a sealing device which is used for ensuring that oil cavities at the front part and the rear part of the tail rod are isolated when the perforation tail rod reciprocates in the sealing device so as to prevent oil leakage. The extrusion operation belongs to high-pressure operation, and the main part of the sealing device is generally composed of a plurality of metal piston rings 4 overlapped between two limit sleeves 5, see fig. 2, so as to adapt to the high-pressure environment. In operation, friction between the outer wall of the tail rod and the inner wall of the metal piston ring causes abrasion of the tail rod to a certain extent, the sealing device starts to fail, internal leakage oil occurs, and perforation weakness and even extrusion failure are caused. The cost of replacing a new tail rod is huge, and the replaced new tail rod also faces the problem of abrasion and oil leakage after the working time is long. The sealing device can be improved, and the purposes of providing the same sealing effect and prolonging the service life of the tail rod can be achieved.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a sealing device for a perforated tail rod of an extruder, which has the advantages of good sealing effect, simple structure and low manufacturing cost.
The technical scheme for achieving the purpose comprises the following steps.
The utility model provides a sealing device for extruder perforation tail rod, includes copper sheathing, wear-resisting ribbon tape, the internal diameter of copper sheathing and the external diameter adaptation of perforation tail rod, telescopic inner wall interval is equipped with the ring channel of twice or more, wear-resisting ribbon tape width and ring channel width adaptation, the thickness and the ring channel degree of depth looks adaptation of wear-resisting ribbon tape, installation wear-resisting ribbon tape in every ring channel, during operation, perforation tail rod alternates reciprocating motion in the copper sheathing, wear-resisting ribbon tape hugs closely perforation tail rod outer wall.
Further, the wear-resistant flat belt is made of a high-molecular organic composite material containing copper powder.
Further, the wear-resistant flat belt is a tetrafluoro copper powder guide belt.
Further, the copper sleeve is made of tin bronze.
Further, the width of the annular groove is 5-10 times of the depth of the annular groove.
Above-mentioned sealing device for extruder perforation tail rod, set up the ring channel that holds wear-resisting ribbon tape at copper sheathing inner wall, during operation, the tail rod pastes in copper sheathing inner wall reciprocating motion, wear-resisting ribbon tape has hugged closely the tail rod outer wall and has played sealed effect, the ring channel provides axial positioning action for wear-resisting ribbon tape, prevent ribbon tape axial to move in a series, ring channel structure still provides pressure for wear-resisting ribbon tape tightly supports the tail rod, ensure reliable sealed effect, this sealing device uses the copper sheathing as the supporter of wear-resisting ribbon tape, wear-resisting ribbon tape direct contact tail rod outer wall has reached both sealed tail rod and has reduced the effect to the wearing and tearing of tail rod betterly.
The sealing device for the perforating tail rod of the extruder has the advantages of simple structure, low manufacturing cost and good sealing effect, and can effectively prolong the service life of the perforating tail rod and reduce the production cost.
Drawings
FIG. 1 is a schematic view of a sealing device for an extruder perforated tail stock according to an embodiment;
fig. 2 is a schematic structural view of a sealing device in the prior art.
In the figure, 1. Tail rod; 2. a copper sleeve; 2-1, an annular groove; 3. wear-resistant flat belts; 4. piston rings; 5. and a limit sleeve.
Detailed Description
The present utility model will be specifically described with reference to examples.
Referring to fig. 1 and 2, the sealing device of the embodiment is used on a perforated tail rod of a daily 22MN double-acting horizontal extruder, the diameter of the perforated tail rod is 228.6mm, the sealing device comprises a copper sleeve 2 and a wear-resistant flat belt 3 which are arranged between two limiting sleeves 5, the copper sleeve 2 is made of tin bronze, the inner diameter of the copper sleeve is 228.6mm, two annular grooves 2-1 are formed in the inner wall of the copper sleeve 2 at intervals, the depth of the annular grooves 2-1 is 3mm, the width of the annular grooves is 25mm, the wear-resistant flat belt 3 is a tetrafluoro copper powder guide belt, the thickness of the wear-resistant flat belt 3 is 3mm, the width of the wear-resistant flat belt is 25mm, a wear-resistant flat belt 3 connected end to end is arranged in each annular groove 2-1, during operation, the perforated tail rod 1 is inserted in the copper sleeve 2 to reciprocate, the wear-resistant flat belt 3 is tightly attached to the outer wall of the perforated tail rod 1, the copper sleeve 2 is softer than the perforated tail rod 1, during operation, the penetration between the copper sleeve 2 and the perforated tail rod 1 plays a lubricating role, the friction between the copper sleeve and the perforated tail rod 1 is further reduced, the perforated tail rod 1 is guaranteed, the service life of the wear-resistant flat belt is prolonged, the wear-resistant flat belt 3 is beneficial to the outer wall of the perforated tail rod 1, and the wear-resistant flat belt is a small number of the wear-resistant flat belt 1, and the wear-resistant flat belt is used as the outer layer. The sealing device of the embodiment has simple structure and low cost.
Claims (5)
1. A sealing device for an extruder perforation tail rod is characterized by comprising a copper sleeve and wear-resistant flat belts, wherein the inner diameter of the copper sleeve is matched with the outer diameter of the perforation tail rod, two or more annular grooves are formed in the inner wall of a sleeve at intervals, the width of the wear-resistant flat belts is matched with the width of the annular grooves, the thickness of the wear-resistant flat belts is matched with the depth of the annular grooves, one wear-resistant flat belt is arranged in each annular groove, during operation, the perforation tail rod is inserted into the copper sleeve to reciprocate, and the wear-resistant flat belts are tightly attached to the outer wall of the perforation tail rod.
2. The sealing device for an extruder perforated tail stock of claim 1, wherein the wear flat strip is made of a polymeric organic composite material containing copper powder.
3. The sealing device for an extruder perforated tail stock of claim 1, wherein the wear flat strip is a tetrafluorocopper powder guide strip.
4. The sealing device for an extruder perforated tail stock of claim 1, wherein the copper jacket is tin bronze.
5. The sealing device for an extruder perforation tail according to claim 1, wherein the annular groove has a width 5-10 times its depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320618424.9U CN219655253U (en) | 2023-03-27 | 2023-03-27 | Sealing device for extruder perforation tail rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320618424.9U CN219655253U (en) | 2023-03-27 | 2023-03-27 | Sealing device for extruder perforation tail rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219655253U true CN219655253U (en) | 2023-09-08 |
Family
ID=87858972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320618424.9U Active CN219655253U (en) | 2023-03-27 | 2023-03-27 | Sealing device for extruder perforation tail rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219655253U (en) |
-
2023
- 2023-03-27 CN CN202320618424.9U patent/CN219655253U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |