CN211339620U

CN211339620U - Sealing device for furnace mouth of high-pressure gas quenching furnace

Info

Publication number: CN211339620U
Application number: CN201922372480.5U
Authority: CN
Inventors: 吴继稳; 徐成俊
Original assignee: Shanghai Shunke Mould Technology Co ltd
Current assignee: Shanghai Shunke Mould Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-25
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a sealing device for high-pressure gas quenching stove mouth, including a stove mouth and a sealed lid section of thick bamboo, the interior bottom welding of a sealed lid section of thick bamboo have with the main sealed crown plate of stove mouth looks adaptation, and one side welding that a sealed lid section of thick bamboo is close to the main sealed crown plate has the annular end, the annular end all opens the screw thread end that has the looks adaptation with relative one side of stove mouth, and the welding of the bottom port department of a sealed lid section of thick bamboo has the clamping ring, one side that the stove mouth is close to the clamping ring is installed and is consolidated locking mechanism. The utility model discloses an annular end, the screw thread end that set up can make a sealed lid section of thick bamboo move down through rotating a sealed lid section of thick bamboo, ensure closely laminating between main sealed crown plate and fire door and seal ring one and the seal ring two, support mutually supporting between pole and the annular chimb through arm board, screw thread section of thick bamboo, screw thread that set up, are favorable to supporting the extrusion effect of pole through the screw thread, make the device's the seal part between the laminating inseparabler, ensure the device's sealed effect.

Description

Sealing device for furnace mouth of high-pressure gas quenching furnace

Technical Field

The utility model relates to a fire door sealing technical field especially relates to a sealing device for high pressure gas quenching stove fire door.

Background

The heat treatment is usually carried out by quenching using oil or a water-soluble quenching liquid, and the gas quenching method has been originally applied only to high hardenability steel, but has also been applied to quenching of medium and low hardenability steel in recent years. The high-pressure gas or high-flow-rate gas quenching is adopted, so that the application field of gas quenching is expanded, and the deformation is reduced. To minimize workpiece distortion, some quenching methods should be used that can adjust the local velocity and simulate the workpiece opening. Gas quenching and spray quenching may meet these requirements. Therefore, qi is attracting attention.

When the gas quenching furnace is operated, the internal gas pressure is higher, so the requirement on the sealing performance of the furnace mouth is higher. For example, chinese patent application No. CN201821848701.0 discloses a sealing device for high pressure gas quenching stove mouth, which comprises a furnace body, the stove mouth has been seted up to the preceding terminal surface of furnace body, the one end of keeping away from the fixed block on the expansion plate is rotated and is connected with the furnace gate, the surperficial sliding connection with the stove mouth of furnace gate, the internal surface rotation in convex groove is connected with the protruding piece, the rear end face of protruding piece has seted up the plane screw thread, and the internal surface sliding connection of three spout has the slide bar. However, the sealing design of the furnace door and the furnace mouth in the patent is still simpler, and the sealing effect is more general, so that certain limitation exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a sealing device for a furnace mouth of a high-pressure gas quenching furnace.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sealing device for high pressure gas quenching stove mouth, includes a furnace mouth and a sealed cover section of thick bamboo, the interior bottom welding of a sealed cover section of thick bamboo have with the main sealed crown plate of furnace mouth looks adaptation, and one side welding that a sealed cover section of thick bamboo is close to main sealed crown plate has the annular end, the threaded end that has the looks adaptation is all opened to the annular end and relative one side of furnace mouth, and the welding of the bottom port department of a sealed cover section of thick bamboo has the clamping ring, the furnace mouth is close to one side of clamping ring and installs reinforcement locking mechanism, and consolidates locking mechanism and including seting up the ring channel in furnace mouth one end circumference outer wall, the inner wall joint of ring channel has the clamp of looks adaptation, and the one end circumference outer wall welding that is close to the clamping ring has the clamp trunnion.

Furthermore, the edge of the outer wall of the circumference of the compression ring is welded with arm plates which are vertically distributed, and the arm plates are provided with oblique mounting openings.

Furthermore, the inner wall welding of the oblique mounting opening has a screw thread section of thick bamboo that the slope set up, and the inner wall of a screw thread section of thick bamboo all has screw thread to support the pole through threaded connection.

Furthermore, one end of the threaded abutting rod is opposite to the outer side of the annular convex edge, and the cross section of the annular convex edge is a right-angled triangle.

Furthermore, a first sealing washer and a second sealing washer are fixedly extruded on one side, opposite to the supporting ring, of the pressing ring.

Furthermore, the circumference outer wall welding of sealed lid section of thick bamboo has the handle of equidistance distribution, and is connected through the bolt between the clamp.

Furthermore, reinforcing rods which are distributed in an equidistant annular mode are welded on the opposite side of the hoop and the opposite side of the supporting ring.

Compared with the prior art, the utility model provides a sealing device for high-pressure gas quenching stove fire door possesses following beneficial effect:

1. this a sealing device for high pressure gas quenching stove mouth mutually supports between post sealing ring board, seal ring one and the seal ring two that set up, can play good sealed effect, guarantees the leakproofness of stove mouth.

2. This a sealing device for high pressure gas quenching stove mouth, annular end through setting up, the screw thread end can be through rotating sealed lid section of thick bamboo, make sealed lid section of thick bamboo downstream, ensure closely laminating between main sealed crown plate and stove mouth and seal ring one and the seal ring two, through the arm board that sets up, a screw thread section of thick bamboo, mutually support between screw thread support rod and the annular chimb, be favorable to the extrusion effect through screw thread support rod, it is inseparabler to make the laminating between the device's the seal part, ensure the device's sealed effect.

3. This a sealing device for high pressure gas quenching stove fire door through the stiffener that sets up, is favorable to playing good supporting effect between backing ring and clamp, improves the structural strength of backing ring, prevents that it from appearing not hard up, influences sealed effect.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses the principle is simple, sealed effectual.

Drawings

FIG. 1 is a schematic sectional view of a sealing device for a furnace mouth of a high-pressure gas quenching furnace according to the present invention;

FIG. 2 is a schematic view of a clamp of the sealing device for the furnace mouth of the high-pressure gas quenching furnace according to the present invention;

fig. 3 is a schematic diagram of a semi-sectional structure of a sealing cover cylinder of the sealing device for the furnace mouth of the high-pressure gas quenching furnace provided by the utility model.

In the figure: 1-sealing cover cylinder, 2-main sealing ring plate, 3-furnace mouth, 4-annular end, 5-press ring, 6-arm plate, 7-thread cylinder, 8-thread abutting rod, 9-supporting ring, 10-clamp, 11-annular groove, 12-reinforcing rod, 13-annular convex edge, 14-sealing washer I, 15-sealing washer II, 16-thread end and 17-handle.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, a sealing device for a furnace mouth of a high-pressure gas quenching furnace, including a furnace mouth 3 and a sealing cover cylinder 1, the inner bottom of the sealing cover cylinder 1 is welded with a main sealing ring plate 2 matched with the furnace mouth, one side of the sealing cover cylinder 1 close to the main sealing ring plate 2 is welded with an annular end 4, the opposite side of the annular end 4 and the furnace mouth 3 is provided with a threaded end 16 matched with the threaded end, the bottom port of the sealing cover cylinder 1 is welded with a pressure ring 5, one side of the furnace mouth 3 close to the pressure ring 5 is provided with a reinforcing and locking mechanism, the reinforcing and locking mechanism comprises an annular groove 11 arranged on the circumferential outer wall of one end of the furnace mouth 3, the inner wall of the annular groove 11 is clamped with a clamp 10 matched with the annular groove, the circumferential outer wall of one end of the clamp 10 close to the pressure ring 5 is welded with a supporting ring.

The utility model discloses in, the equal welding of circumference outer wall edge of clamping ring 5 has the arm board 6 of vertical distribution, and arm board 6 has all opened the oblique shape installing port.

Wherein, the inner wall welding of the oblique shape installing port has a screw thread section of thick bamboo 7 that the slope set up, and the inner wall of a screw thread section of thick bamboo 7 all has screw thread to support pole 8 through threaded connection.

Wherein, one end of the screw thread resisting rod 8 is right opposite to the outer side of the annular convex edge 13, and the section of the annular convex edge 13 is a right triangle.

Wherein, the opposite side of the press ring 5 and the backing ring 9 is fixedly provided with a first sealing washer 14 and a second sealing washer 15 in a pressing way.

Wherein, the circumference outer wall welding of sealed lid section of thick bamboo 1 has the handle 17 of equidistance distribution, and is connected through the bolt between the clamp 10.

The working principle is as follows: when the furnace mouth sealing device is used, the hoop 10 is clamped in the annular groove 11 and is connected and fixed through the bolt, the first sealing washer 14 and the second sealing washer 15 are placed on the supporting ring 9, after the completion, the furnace mouth 3 is sleeved with the sealing cover cylinder 1, when the annular end 4 is contacted with the threaded end 16, the sealing cover cylinder 1 is rotated through the handle 17, the sealing cover cylinder 1 moves downwards, the main sealing ring plate 2 is tightly attached to the furnace mouth 3, and the first sealing washer 14 and the second sealing washer 15 are also tightly attached to each other through the pressing ring 5 and the supporting ring 9; meanwhile, the threaded abutting rod 8 is arranged on the threaded cylinder 7 on the arm plate 6, the threaded abutting rod 8 is rotated until the threaded abutting rod is extruded with the annular convex edge 13, and the sealing parts of the device are attached more tightly through the extrusion effect of the threaded abutting rod, so that the sealing effect of the device is ensured.

Example 2

Referring to fig. 1-2, compared with embodiment 1, the sealing device for the furnace mouth of the high-pressure gas quenching furnace further includes that reinforcing rods 12 are welded on the opposite sides of the hoop 10 and the trunnion ring 9 and are distributed in an annular shape at equal intervals.

The working principle is as follows: during the use, utilize the setting of stiffener 12, can play good supporting effect between backing ring 9 and clamp 10, improve the structural strength of backing ring 9, prevent that it from appearing becoming flexible when carrying out extrusion seal, influencing sealed effect.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The sealing device for the furnace mouth of the high-pressure gas quenching furnace comprises a furnace mouth (3) and a sealing cover cylinder (1), and is characterized in that a main sealing ring plate (2) matched with the furnace mouth is welded at the inner bottom of the sealing cover cylinder (1), an annular end (4) is welded at one side, close to the main sealing ring plate (2), of the sealing cover cylinder (1), a threaded end (16) matched with the annular end (4) and the opposite side of the furnace mouth (3) are respectively formed in the annular end (4) and the bottom port of the sealing cover cylinder (1), a pressure ring (5) is welded at the bottom port of the sealing cover cylinder (1), a reinforcing locking mechanism is installed at one side, close to the pressure ring (5), of the furnace mouth (3) and comprises an annular groove (11) formed in the circumferential outer wall of one end of the furnace mouth (3), a clamp (10) matched with the inner wall of the annular groove (11) is clamped with the clamp (10), and a supporting ring (9) is welded at, the bottom edge of the supporting ring (9) is welded with an annular convex edge (13).

2. The sealing device for the furnace mouth of the high-pressure gas quenching furnace according to claim 1, wherein the edge of the circumferential outer wall of the compression ring (5) is welded with arm plates (6) which are vertically distributed, and the arm plates (6) are provided with oblique mounting holes.

3. The sealing device for the furnace mouth of the high-pressure gas quenching furnace as claimed in claim 2, wherein the inner wall of the oblique mounting mouth is welded with an obliquely arranged threaded cylinder (7), and the inner wall of the threaded cylinder (7) is connected with a threaded support rod (8) through threads.

4. The sealing device for the furnace mouth of the high-pressure gas quenching furnace as claimed in claim 3, wherein one end of the threaded retaining rod (8) is opposite to the outer side of the annular convex edge (13), and the section of the annular convex edge (13) is a right triangle.

5. The sealing device for the furnace mouth of the high-pressure gas quenching furnace is characterized in that a first sealing washer (14) and a second sealing washer (15) are fixedly pressed on one side of the compression ring (5) opposite to the supporting ring (9).

6. The sealing device for the furnace mouth of the high-pressure gas quenching furnace as claimed in claim 1, wherein handles (17) are welded to the circumferential outer wall of the sealing cover cylinder (1) and are equidistantly distributed, and the clamping bands (10) are connected through bolts.

7. The sealing device for the furnace mouth of the high-pressure gas quenching furnace is characterized in that reinforcing rods (12) which are distributed in an equidistant annular mode are welded on the opposite side of the clamping hoop (10) and the supporting ring (9).