CN220488450U - Sealing device of hydraulic control butterfly valve of quenching machine - Google Patents
Sealing device of hydraulic control butterfly valve of quenching machine Download PDFInfo
- Publication number
- CN220488450U CN220488450U CN202321875327.4U CN202321875327U CN220488450U CN 220488450 U CN220488450 U CN 220488450U CN 202321875327 U CN202321875327 U CN 202321875327U CN 220488450 U CN220488450 U CN 220488450U
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- CN
- China
- Prior art keywords
- end cover
- butterfly valve
- annular
- quenching machine
- hydraulic control
- 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 73
- 238000010791 quenching Methods 0.000 title claims abstract description 24
- 230000000171 quenching effect Effects 0.000 title claims abstract description 24
- 229910002804 graphite Inorganic materials 0.000 claims description 25
- 239000010439 graphite Substances 0.000 claims description 25
- 238000012856 packing Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 13
- 230000007123 defense Effects 0.000 abstract description 3
- 230000003139 buffering effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model provides a sealing device of quenching machine liquid accuse butterfly valve, includes end cover, axle sleeve and pivot, end cover and axle sleeve are annular, and the axle sleeve cover is established in the valve body and is established in the pivot with the end cover in proper order, be equipped with ring seal structure on annular axle sleeve inner ring and the outer loop and prevent the first line of defense that liquid revealed, the contact surface of end cover and axle sleeve sets up labyrinth seal structure and prevents the second line of defense that liquid revealed as the labyrinth seal structure that sets up on the axle sleeve and the end cover mutually support, ensures the leakproofness of quenching machine liquid accuse butterfly valve to leak in a large number for the liquid and provide buffering time, supply the staff to change in time, avoid the incident to take place.
Description
Technical Field
The utility model relates to the field of hydraulic control butterfly valves, in particular to a sealing device of a hydraulic control butterfly valve of a quenching machine.
Background
The hydraulic control butterfly valve has wide application and brings new requirements for tightness when being applied to a quenching machine. The sealing means of the common hydraulic control butterfly valve is to spread plane sealant on the contact surface of the end cover and the valve body, and then use bolts to tighten the end cover and the valve body so as to keep sealing, however, the sealing means can ensure that the gap at the rotating shaft is too large and water leakage accidents are easy to be caused by the too large gap after long-time operation, the splashing water is easy to cause the burning of the solenoid valve coil, safety accidents occur, and normal work and production of quenched steel plates are influenced. Therefore, improvement of the sealing performance of the hydraulic control butterfly valve is urgent.
Disclosure of Invention
In order to solve the problem of poor sealing performance of the hydraulic butterfly valve, the utility model provides the sealing device of the hydraulic butterfly valve of the quenching machine, which can improve the sealing performance of the hydraulic butterfly valve of the quenching machine, reduce the loss caused by shutdown due to accidents and improve the productivity; the technical proposal is as follows.
The technical scheme is as follows:
the sealing device of the hydraulic control butterfly valve of the quenching machine comprises an end cover, a shaft sleeve and a rotating shaft, wherein the end cover and the shaft sleeve are annular, the shaft sleeve is sleeved in a valve body and is sequentially sleeved on the rotating shaft together with the end cover, an annular sealing ring structure is arranged between the inner annular wall of the shaft sleeve and the rotating shaft, and the outer annular wall of the shaft sleeve and the valve body; the labyrinth sealing structure is arranged on the contact surface of the end cover and the shaft sleeve, the arrangement position of the labyrinth sealing structure is close to the contact surface of the end cover and the shaft sleeve, and the labyrinth sealing structure comprises a rectangular groove arranged at the end part of the contact surface of the end cover and the shaft sleeve and a graphite packing tightly attached to the rectangular groove; the central axes of the rectangular groove and the graphite packing are coincident with the central axis of the rotating shaft; the shaft sleeves are mutually matched to ensure the tightness of the hydraulic control butterfly valve of the quenching machine.
Further, the central axes of the first annular sealing groove, the second annular sealing groove and the annular sealing ring are coincident with the central axis of the rotating shaft.
Further, the number of the first annular seal grooves is the same as the number of the second annular seal grooves, and the first annular seal grooves and the second annular seal grooves are arranged in an alternating and uniform manner from being close to the end cover.
Further, the first annular seal groove is arranged in 2 groups with the second annular seal groove.
Further, the graphite packing is of an annular structure, the inner ring of the graphite packing is a circular ring matched with the rotating shaft, and the outer ring of the graphite packing is of a rectangular structure with the same shape as the rectangular groove.
Further, the shaft sleeve is made of copper.
The beneficial effects are that:
by adopting the technical scheme, compared with the prior art, the utility model has the following advantages:
through set up ring seal on the inner wall and the outer wall of axle sleeve for ring seal structure prevents that the quenching machine from making pivot department clearance too big through long-time operation, and thereby the axle sleeve position does not set up sealing device and leads to revealing the problem. The rectangular groove is formed in the contact surface of the end cover and the shaft sleeve and used for placing the graphite packing, and the graphite packing is used as a labyrinth sealing structure, and has excellent performances of high temperature resistance, wear resistance and acid and alkali resistance and a labyrinth effect, so that when liquid leaks to the position, the labyrinth sealing structure can absorb liquid leakage, and when the liquid leakage reaches a saturated state, the liquid leakage state is also a state of a small amount of seepage, reaction and repair time are provided for workers, and safety accidents caused by large-scale water leakage are overcome.
Drawings
FIG. 1 is a schematic diagram of a sealing device of a hydraulic butterfly valve of a quenching machine;
FIG. 2 is a schematic view of an annular sealing rubber ring
FIG. 3 is a schematic view of a graphite packing;
in fig. 1: 1-end caps; 2-shaft sleeve; 3-rotating shaft; 4-a valve body; 5-a first annular seal groove, 6-a second annular seal groove; 7-an annular sealing ring; 8-rectangular grooves; 9-graphite packing.
Detailed Description
Examples
The embodiment provides a sealing device of a hydraulic control butterfly valve of a quenching machine, which comprises an end cover 1, a shaft sleeve 2 and a rotating shaft 3, wherein the end cover 1 and the shaft sleeve 2 are annular, and the shaft sleeve 2 is sleeved in a valve body 4 and is sequentially sleeved on the rotating shaft 3 with the end cover 1; in order to prevent internal liquid from leaking outside due to long-term abrasion of the hydraulic control butterfly valve in the valve, an annular sealing ring structure is arranged between the inner annular wall of the annular shaft sleeve 2 and the rotating shaft and between the outer annular wall of the shaft sleeve 2 and the valve body 4, a labyrinth sealing structure is arranged on the contact surface of the end cover 1 and the shaft sleeve 2, and the annular sealing ring structure on the shaft sleeve 3 is matched with the labyrinth sealing structure arranged on the end cover 2, so that the tightness of the hydraulic control butterfly valve of the quenching machine is ensured.
The specific structure of the annular sealing ring structure comprises a first annular sealing groove 5 arranged on the inner ring of the shaft sleeve 2 and a second annular sealing groove 6 arranged on the outer ring of the shaft sleeve 2, wherein annular sealing rings 7 matched with the first annular sealing groove 5 and the second annular sealing groove 6 are embedded in the first annular sealing groove and the second annular sealing groove 6. The central axes of the first annular sealing groove 5, the second annular sealing groove 6 and the annular sealing ring 7 are coincident with the central axis of the rotating shaft 3. The number of the first annular sealing grooves 5 is the same as the number of the second annular sealing grooves 6, and the arrangement positions of the first annular sealing grooves 5 and the second annular sealing grooves 6 are alternately and uniformly arranged from the position close to the end cover 2; in this embodiment, 2 groups of first annular seal grooves 5 and 2 groups of second annular seal grooves 6 are respectively provided.
The labyrinth seal structure is arranged at a position close to the contact surface of the end cover 1 and the shaft sleeve 2, and comprises a rectangular groove 8 arranged at the end part of the contact surface of the end cover 1 and a graphite packing 9 matched with the rectangular groove 8; the central axes of the rectangular groove 8 and the graphite packing 9 are coincident with the central axis of the rotating shaft 3; the depth of the rectangular groove 8 is consistent with the height of the graphite packing 9, the graphite packing 9 is of an annular structure, the inner ring of the graphite packing 9 is a circular ring matched with the rotating shaft 3, the outer ring of the graphite packing is of a rectangular structure with the same shape as the rectangular groove 8, and when the graphite packing is installed, the annular sealing ring 7 is tightly attached to the shaft sleeve 2 and the valve body 4, so that liquid is prevented from leaking; the graphite packing 9 is tightly attached to the rectangular groove 8, the graphite packing 9 has the excellent performances of high temperature resistance, wear resistance and acid and alkali resistance, and the labyrinth effect of the graphite packing 9, when liquid leaks to the position, the labyrinth sealing structure can absorb leakage, when the liquid reaches a saturated state, the leakage condition is little oozed, the reaction and repair time are provided for workers, the safety accident caused by large-scale water leakage is overcome, and the final line of defense is provided for the leakage provided by the hydraulic control butterfly valve of the quenching machine.
In this embodiment, the shaft sleeve 2 is made of copper, and in actual rotation wear, the shaft sleeve 2 made of copper is worn to protect the rotating shaft 3 from damage.
The sealing device of the hydraulic control butterfly valve of the quenching machine comprises the following mounting steps:
step one: an annular sealing ring 7 is arranged in the first annular sealing groove 5 and the second annular sealing groove 6, and after the annular sealing ring is arranged, the shaft sleeve 2 is sleeved on the rotating shaft 3;
step two: sleeving the valve body 4 on the shaft sleeve 2 in the first step, so that the valve body 4 is flush with the end surface of the shaft sleeve 2;
step three: the graphite packing 9 is embedded into the rectangular groove 8 arranged on the end cover 1, and the whole is sleeved on the rotating shaft 3.
Step four: and installing bolts and nuts, and fixing a sealing device of a hydraulic control butterfly valve of the quenching machine.
The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (6)
1. The sealing device of the hydraulic control butterfly valve of the quenching machine comprises an end cover, a shaft sleeve and a rotating shaft, wherein the end cover and the shaft sleeve are annular, the shaft sleeve is sleeved in a valve body and is sequentially sleeved on the rotating shaft together with the end cover; the labyrinth sealing structure is arranged on the contact surface of the end cover and the shaft sleeve, the arrangement position of the labyrinth sealing structure is close to the contact surface of the end cover and the shaft sleeve, and the labyrinth sealing structure comprises a rectangular groove arranged at the end part of the contact surface of the end cover and the shaft sleeve and a graphite packing tightly attached to the rectangular groove; the central axes of the rectangular groove and the graphite packing are coincident with the central axis of the rotating shaft; the annular sealing ring structure on the shaft sleeve is matched with the labyrinth sealing structure arranged on the end cover, so that the tightness of the hydraulic control butterfly valve of the quenching machine is ensured.
2. The sealing device of the hydraulic control butterfly valve of the quenching machine according to claim 1, wherein the central axes of the first annular sealing groove, the second annular sealing groove and the annular sealing ring coincide with the central axis of the rotating shaft.
3. The sealing device of a hydraulic control butterfly valve of a quenching machine according to claim 2, wherein the number of the first annular sealing grooves is the same as the number of the second annular sealing grooves, and the first annular sealing grooves and the second annular sealing grooves are arranged at positions which are alternately and uniformly arranged from being close to the end cover.
4. The sealing device of a hydraulic control butterfly valve of a quenching machine according to claim 2, wherein the first annular sealing groove and the second annular sealing groove are respectively provided with two groups.
5. The sealing device of the hydraulic control butterfly valve of the quenching machine according to claim 1, wherein the graphite packing is of an annular structure, an inner ring of the graphite packing is a circular ring matched with the rotating shaft, and an outer ring of the graphite packing is of a rectangular structure with the same shape as the rectangular groove.
6. The sealing device of a hydraulic control butterfly valve of a quenching machine according to claim 1, wherein the sleeve is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875327.4U CN220488450U (en) | 2023-07-17 | 2023-07-17 | Sealing device of hydraulic control butterfly valve of quenching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321875327.4U CN220488450U (en) | 2023-07-17 | 2023-07-17 | Sealing device of hydraulic control butterfly valve of quenching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220488450U true CN220488450U (en) | 2024-02-13 |
Family
ID=89825607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321875327.4U Active CN220488450U (en) | 2023-07-17 | 2023-07-17 | Sealing device of hydraulic control butterfly valve of quenching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220488450U (en) |
-
2023
- 2023-07-17 CN CN202321875327.4U patent/CN220488450U/en active Active
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| GR01 | Patent grant |