CN220060503U - Sealing device for mill cylinder - Google Patents
Sealing device for mill cylinder Download PDFInfo
- Publication number
- CN220060503U CN220060503U CN202321426998.2U CN202321426998U CN220060503U CN 220060503 U CN220060503 U CN 220060503U CN 202321426998 U CN202321426998 U CN 202321426998U CN 220060503 U CN220060503 U CN 220060503U
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- sealing
- outer side
- cylinder
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- sleeve
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- 238000007789 sealing Methods 0.000 title claims abstract description 112
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 210000004907 gland Anatomy 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 7
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 7
- 238000005457 optimization Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003250 coal slurry Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model relates to the technical field of mill cylinder sealing, in particular to a mill cylinder sealing device which comprises a cylinder, a buffer cushion, a steel lining plate, a connecting bolt and a sealing sleeve, wherein the buffer cushion and the steel lining plate are sequentially arranged on the inner side of the cylinder from outside to inside, a plurality of mounting grooves with outward openings are distributed on the outer side of the steel lining plate at intervals, and gaskets with the outer sides in contact with the inner sides of the buffer cushion are arranged in each mounting groove. The utility model has reasonable and compact structure and convenient use, when the connecting nut is screwed down by arranging the limiting sleeve, the connecting nut and the outer side of the cylinder body extrude the sealing sleeve, so that the first sealing bulge is in sealing contact with the outer side of the cylinder body, the limiting sleeve can effectively prevent the sealing sleeve from cracking due to overlarge outward expansion after extrusion, the sealing sleeve and the first sealing bulge can be effectively attached to the outer side of the cylinder body and the outer side of the connecting bolt, and the connecting bolt and the outer side of the cylinder body are sealed together, thereby having the characteristics of safety, labor saving, simplicity and high efficiency.
Description
Technical Field
The utility model relates to the technical field of mill cylinder sealing, in particular to a mill cylinder sealing device.
Background
The leakage of the cylinder bolt is the most common problem of a wet rod mill and is also a difficult problem which puzzles the gasification industry of the water-coal-slurry for a long time, the most direct reason of the leakage of the cylinder bolt is the failure of a sealing rubber gasket, the poor sanitation of field equipment is difficult to treat, the environment protection requirement is not facilitated, and the fluctuation of production (the influence of the reduction of the liquid level of a coal slurry tank after short stop on the production) is caused during the short stop treatment.
At present, the joint of the cylinder body and the bolt has the following defects: 1) Because the rubber product cannot be compressed in an infinite way, after the gland steel gasket is subjected to plastic deformation, the binding effect on the periphery of the rubber gasket is lost, and the rubber gasket is excessively deformed to generate cracking in the bolt fastening process; 2) A sealing surface is formed between the rubber gasket and the surface of the cylinder body, and the surface of the cylinder body is an arc surface, so that the contact area between the planar gasket and the surface of the cylinder body of the arc surface can be reduced, and the sealing effect is poor.
Disclosure of Invention
The utility model provides a sealing device for a mill cylinder body, which overcomes the defects of the prior art, and can effectively solve the problems that a rubber gasket is easy to crack and a planar gasket reduces the sealing effect when a fastening bolt exists at the joint of the prior cylinder body and the bolt.
The technical scheme of the utility model is realized by the following measures: the utility model provides a mill barrel sealing device, which comprises a barrel, the blotter, steel welt, connecting bolt and seal cover, the barrel inboard has set gradually blotter and steel welt from outside to interior, steel welt outside interval distribution has a plurality of opening outside mounting groove, the gasket of outside and the inboard mutual contact of cushion is all installed to every mounting groove, the inboard mounting hole that extends to the barrel outside of being equipped with of steel welt of corresponding mounting groove position tip, all install the connecting bolt that the tip is located the barrel outside after passing the mounting hole in every mounting hole, the connecting bolt outside spiro union that corresponds barrel outside position has connecting nut, the connecting bolt outside that corresponds the position between connecting nut and the barrel is equipped with seal cover and stop collar from interior to outside in proper order, the seal cover is close to the tip of barrel and is fixed with at least one and is annular first sealed arch with barrel outside mutual contact.
The following are further optimizations and/or improvements to the above-described inventive solution:
the center of the end part of the sealing sleeve, which is close to the cylinder body, can be fixed with a second sealing bulge with an annular structure, and the second sealing bulge is arranged between the inner side of the mounting hole and the outer side of the connecting bolt.
The outer side surface of the second sealing bulge can be a conical surface with large outside and small inside.
The end part of the sealing sleeve, which is close to the cylinder body, can be fixedly provided with two first sealing bulges from inside to outside.
The inner side of the sealing sleeve can be uniformly provided with a plurality of third sealing bulges with annular structures at intervals along the length direction.
A gap can be arranged between the end part of the limiting sleeve and the outer side of the cylinder body, an annular fourth sealing bulge is fixed on the outer side of the end part of the sealing sleeve, which is close to the cylinder body, and a fifth sealing bulge is fixed on the outer side of the fourth sealing bulge.
A gland sleeved between the outer side of the connecting bolt and the limiting sleeve can be arranged between the end part of the sealing sleeve, which is far away from the cylinder, and the connecting nut, and an outer ring platform is fixed on the outer side of the gland.
The utility model has reasonable and compact structure and convenient use, when the connecting nut is screwed down by arranging the limiting sleeve, the connecting nut and the outer side of the cylinder body extrude the sealing sleeve, so that the first sealing bulge is in sealing contact with the outer side of the cylinder body, the limiting sleeve can effectively prevent the sealing sleeve from cracking due to overlarge outward expansion after extrusion, the sealing sleeve and the first sealing bulge can be effectively attached to the outer side of the cylinder body and the outer side of the connecting bolt, and the connecting bolt and the outer side of the cylinder body are sealed together, thereby having the characteristics of safety, labor saving, simplicity and high efficiency.
Drawings
Fig. 1 is a schematic view of a partially sectioned structure from the front view of the first embodiment.
Figure 2 is a schematic diagram of a cross-sectional front view of a seal cartridge in accordance with a first embodiment.
Fig. 3 is a schematic bottom view of the seal cartridge in the first embodiment.
The codes in the drawings are respectively: 1 is a cylinder body, 2 is a buffer pad, 3 is a steel lining plate, 4 is a gasket, 5 is a connecting bolt, 6 is a connecting nut, 7 is a sealing sleeve, 8 is a limiting sleeve, 9 is a first sealing bulge, 10 is a second sealing bulge, 11 is a third sealing bulge, 12 is a fourth sealing bulge, 13 is a fifth sealing bulge, 14 is a gland, and 15 is an outer annular platform.
Detailed Description
The present utility model is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present utility model.
In the present utility model, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The utility model is further described below with reference to examples and figures:
embodiment one: as shown in fig. 1, 2 and 3, the mill cylinder sealing device comprises a cylinder 1, a cushion pad 2, a steel lining plate 3, a connecting bolt 5 and a sealing sleeve 7, wherein the cushion pad 2 and the steel lining plate 3 are sequentially arranged on the inner side of the cylinder 1 from outside to inside, a plurality of installing grooves with outwards openings are distributed on the outer side of the steel lining plate 3 at intervals, gaskets 4 which are mutually contacted with the outer side and the inner side of the cushion pad 2 are respectively installed in each installing groove, installing holes with ends extending to the outer side of the cylinder 1 are respectively arranged on the inner side of the steel lining plate 3 corresponding to the positions of the installing grooves, the connecting bolts 5 with ends penetrating through the installing holes and then being positioned on the outer side of the cylinder 1 are respectively installed in each installing hole, the connecting nuts 6 are respectively in threaded connection with the outer sides of the connecting bolts 5 corresponding to the positions of the cylinder 1, the sealing sleeve 7 and a limiting sleeve 8 are sequentially sleeved on the outer sides of the connecting bolts 5 corresponding to the positions between the connecting nuts 6 and the cylinder 1 from inside to outside, and at least one annular first sealing bulge 9 which is mutually contacted with the outer side of the cylinder 1 is fixedly arranged on the end of the sealing sleeve 7.
According to the demand, the quantity of coupling nut 6 can be two, and the material of seal cover 7 is the rubber of current well known, and the cross-section of first sealed protruding 9 is semi-circular, and first sealed protruding 9 and seal cover 7 an organic whole set up. In the use, through setting up stop collar 8, when tightening coupling nut 6, coupling nut 6 and barrel 1 outside extrusion seal cover 7 for first sealed protruding 9 and barrel 1 outside sealing contact, stop collar 8 can effectively prevent that seal cover 7 from receiving the too big emergence fracture phenomenon of external expansion volume after the extrusion, can make seal cover 7 and first sealed protruding 9 effectively laminate barrel 1 outside and coupling bolt 5 outside, seal coupling bolt 5 and barrel 1 outside jointly, the utility model rational in infrastructure and compact, convenient to use has safe, laborsaving, simple and convenient, efficient characteristics.
The sealing device of the mill cylinder body can be further optimized or/and improved according to actual needs:
embodiment two: as an optimization of the above embodiment, as shown in fig. 2 and 3, a second sealing protrusion 10 with an annular structure is fixed at the center of the end of the sealing sleeve 7 near the cylinder 1, and the second sealing protrusion 10 is installed between the inner side of the mounting hole and the outer side of the connecting bolt 5. The second sealing bead 10 is provided integrally with the sealing sleeve 7 as required. In the use, through such setting, after tightening coupling nut 6, seal cover 7 extrudees the protruding 10 of second seal, can make the protruding 10 inflation back of second seal mounting hole inner wall and coupling bolt 5 outer wall, promotes sealed effect.
Embodiment III: as an optimization of the above embodiment, as shown in fig. 2 and 3, the outer side surface of the second sealing protrusion 10 is a conical surface with a large outside and a small inside. In the use process, through the arrangement, the installation of the second sealing bulge 10 is facilitated, the manufacture of the second sealing bulge 10 is facilitated, the second sealing bulge 10 is sleeved into the installation hole, and the sealing effect between the inner wall of the installation hole and the outer side of the connecting bolt 5 is enhanced.
Embodiment four: as an optimization of the above embodiment, as shown in fig. 1, 2 and 3, the end of the sealing sleeve 7 close to the cylinder 1 is fixed with two first sealing bulges 9 from inside to outside. In the use, through such setting, screw up coupling nut 6 back, seal cover 7 receives the extrusion back and can make the effective laminating of cambered surface in first sealed protruding 9 and barrel 1 outside, realizes sealing contact, promotes sealing performance.
Fifth embodiment: as an optimization of the above embodiment, as shown in fig. 2 and 3, a plurality of third sealing protrusions 11 with annular structures are uniformly distributed on the inner side of the sealing sleeve 7 at intervals along the length direction. According to the demand, the cross-section of the third seal bulge 11 is semi-circular, and the third seal bulge 11 sets up with seal cover 7 an organic whole, in the use, through such setting, screw up behind the coupling nut 6, the inboard third seal bulge 11 of seal cover 7 can receive after the extrusion and sealing contact with coupling bolt 5 outside, prevents that the material from revealing along coupling bolt 5 axial direction from barrel 1 inboard.
Example six: as shown in fig. 1, 2 and 3, a gap is formed between the end of the stop collar 8 and the outer side of the cylinder 1, an annular fourth sealing protrusion 12 is fixed on the outer side of the end of the sealing sleeve 7, which is close to the cylinder 1, and a fifth sealing protrusion 13 is fixed on the outer side of the fourth sealing protrusion 12. According to the requirement, the fourth sealing bulge 12, the fifth sealing bulge 13 and the stop collar 8 are integrally arranged, the cross section of the fifth sealing bulge 13 can be semicircular, the material of the fifth sealing bulge 13 can be the prior known technology, such as the fiber material, the diameter of the fourth sealing bulge 12 is not smaller than the inner diameter of the stop collar 8, and the end part of the stop collar 8 and the end surface of the fourth sealing bulge 12 far away from the barrel 1 are in contact with each other. In the use, through the fourth sealed protruding 12, can increase the sealing performance between stop collar 8 and the barrel 1 outside, through the protruding 13 of fifth seal, can prevent stop collar 8 from taking place the fracture phenomenon after receiving the extrusion, extension stop collar 8's life.
Embodiment seven: as shown in fig. 1 and 2, a gland 14 sleeved between the outer side of the connecting bolt 5 and the limit sleeve 8 is arranged between the end of the sealing sleeve 7 far away from the cylinder body 1 and the connecting nut 6, and an outer ring table 15 is fixed on the outer side of the gland 14. In the use, through setting up gland 14 and outer loop platform 15, when coupling nut 6 is screwed up, can extrude fourth seal protruding 12 and fifth seal protruding 13 through gland 14 and stop collar 8, make fourth seal protruding 12 and fifth seal protruding 13 and barrel 1 outside sealing contact, play sealed effect, can also increase simultaneously and seal cover 7 keep away from the area of contact of barrel 1 outside tip for seal cover 7 can be with coupling bolt 5 outside sealing contact when being extruded.
The technical characteristics form the embodiment of the utility model, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (10)
1. The utility model provides a mill barrel sealing device, a serial communication port, including the barrel, the blotter, steel welt, connecting bolt and seal cover, the barrel inboard has set gradually blotter and steel welt from outside to interior, steel welt outside interval distribution has a plurality of opening outside mounting groove, all install the gasket of outside and the inboard mutual contact of buffer cushion in every mounting groove, the inboard mounting hole that extends to the barrel outside of being equipped with of steel welt of corresponding mounting groove position, all install the connecting bolt that the tip passed the mounting hole in every mounting hole back and lie in the barrel outside, connecting bolt outside spiro union that corresponds barrel outside position has coupling nut, the connecting bolt outside that corresponds the position between coupling nut and the barrel is equipped with seal cover and stop collar from interior to outside in proper order, the tip that the seal cover is close to the barrel is fixed with at least one and is annular first sealed arch with barrel outside mutual contact.
2. The mill cylinder sealing device according to claim 1, wherein a second sealing protrusion of an annular structure is fixed to the center of the end portion of the sealing sleeve near the cylinder, and the second sealing protrusion is installed between the inner side of the installation hole and the outer side of the connecting bolt.
3. The mill bowl sealing arrangement of claim 2 wherein the outer surface of the second sealing projection is tapered with a larger outside and a smaller inside.
4. A mill bowl sealing arrangement according to claim 1 or 2 or 3, wherein the end of the sealing sleeve adjacent the bowl is secured with two first sealing projections from inside to outside.
5. A mill cylinder sealing device according to claim 1, 2 or 3, wherein a plurality of third sealing protrusions of annular structure are uniformly distributed on the inner side of the sealing sleeve at intervals along the length direction.
6. The mill cylinder sealing device according to claim 4, wherein a plurality of third sealing protrusions with annular structures are uniformly distributed on the inner side of the sealing sleeve at intervals along the length direction.
7. The mill cylinder sealing device according to claim 1, 2, 3 or 6, wherein a gap is arranged between the end of the limit sleeve and the outer side of the cylinder, an annular fourth sealing protrusion is fixed on the outer side of the end, close to the cylinder, of the seal sleeve, and a fifth sealing protrusion is fixed on the outer side of the fourth sealing protrusion.
8. The mill cylinder sealing device according to claim 4, wherein a gap is arranged between the end of the limit sleeve and the outer side of the cylinder, an annular fourth sealing protrusion is fixed on the outer side of the end, close to the cylinder, of the seal sleeve, and a fifth sealing protrusion is fixed on the outer side of the fourth sealing protrusion.
9. The mill cylinder sealing device according to claim 5, wherein a gap is arranged between the end of the limit sleeve and the outer side of the cylinder, an annular fourth sealing protrusion is fixed on the outer side of the end, close to the cylinder, of the seal sleeve, and a fifth sealing protrusion is fixed on the outer side of the fourth sealing protrusion.
10. The mill cylinder sealing device according to claim 1 or 2 or 3 or 6 or 8 or 9, wherein a gland sleeved between the outer side of the connecting bolt and the limiting sleeve is arranged between the end of the sealing sleeve far away from the cylinder and the connecting nut, and an outer ring platform is fixed on the outer side of the gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321426998.2U CN220060503U (en) | 2023-06-06 | 2023-06-06 | Sealing device for mill cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321426998.2U CN220060503U (en) | 2023-06-06 | 2023-06-06 | Sealing device for mill cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220060503U true CN220060503U (en) | 2023-11-21 |
Family
ID=88787428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321426998.2U Active CN220060503U (en) | 2023-06-06 | 2023-06-06 | Sealing device for mill cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220060503U (en) |
-
2023
- 2023-06-06 CN CN202321426998.2U patent/CN220060503U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |