KR20230103903A - Eccentric flange and liquid riser installation method - Google Patents

Abstract

The present invention relates to an eccentric flange and a liquid riser tube installation method. Comprised are: a flange bolt, a red copper pad, a flange plate, a sealing ring, a gasket and a bottom plate, wherein the flange plate is an eccentric annular steel plate, and a first circular groove is formed by taking the circle center of an inner hole of the flange plate as the circle center and is used for installing the gasket; the circle center of the excircle of the flange plate is taken as the circle center, and a concave groove is formed in the edge of the flange plate and is used for installing the sealing ring; circular holes are machined in the periphery of the first circular groove and are used for penetrating the flange bolt; the bottom plate is an eccentric annular steel plate, and a second circular groove is formed by taking the circle center of the inner hole as the circle center and is used for installing the gasket; and threads are machined in the periphery of the second circular groove on the bottom plate and are used for screwing in the flange bolts. The present invention effectively solved the problems of installation and air leakage caused by the sinking of a refractory material. In addition, a space below the liquid riser tube is used to design the flange in an eccentric form so that the installation position of the liquid riser tube can be moved downward to avoid the sinking refractory material. Moreover, the stability of sealing is secured using the method of combining the gasket, the sealing ring and the red copper pad.

Description

Eccentric flange and liquid riser installation method

The present invention relates to the field of die casting equipment technology, and more particularly to a method for installing an eccentric flange and a liquid riser pipe.

In the process of casting and producing aluminum alloy automobile parts, the aluminum liquid is stored in a sealed furnace, and is extruded from the liquid riser of the furnace into a die casting machine under the control of a pneumatic system. The fixed furnace shell is manufactured by welding with steel, and the inner surface is injected with refractory material. The refractory in the liquid riser installation area is prone to sedimentation, so the liquid riser may not be installed normally or air leakage may occur after installation. In order to solve this problem, conventionally, a method of stopping the operation of the furnace and restoring the refractory has been used, but this takes a lot of time and costs a lot.

The present invention provides an eccentric flange and a liquid riser installation method. This effectively solves the problems of installation and air leakage due to refractory sedimentation. In addition, by designing the flange in an eccentric shape using the space below the liquid riser, the installation position of the liquid riser was moved downward to avoid sedimenting refractories. In addition, sealing stability was ensured by using a combination of gasket, sealing ring and red copper pad.

To achieve the above object, the present invention adopts the following technical solutions.

In one aspect, the present invention provides an eccentric flange. This includes flange bolts, copper pads, flange plates, sealing rings, gaskets and sole plates. The flange plate is an eccentric round ring-shaped steel plate, and a first circular groove is opened with a centrifugal center of a hole inside the flange plate to be used for mounting a gasket. A concave groove is installed on the edge of the flange plate by centrifugation of the outer circle of the flange plate, and is used to mount the sealing ring. A circular hole is machined around the first circular groove and is used to penetrate the flange bolt. The bottom plate is an eccentric round ring-shaped steel plate, and a second circular groove is opened centrifugally in the inner hole centrifugally, and is used for mounting a gasket. A thread is machined around the second circular groove on the bottom plate and is used to rotate the flange bolt.

In some embodiments, the flange plate is installed on one side of the first circular groove and the concave groove, and has a surface roughness of 3.2.

In some embodiments, the first circular groove depth is less than a gasket thickness.

In some embodiments, the flange plate edge concave depth is smaller than the sealing ring thickness.

In some embodiments, the inner diameter of the sealing ring is larger than the outer diameter in which the furnace body is installed.

In some embodiments, the gasket inner diameter is slightly larger than the liquid riser outer diameter, and the gasket outer diameter is equal to the liquid riser protruding ridge outer diameter.

In some embodiments, the second circular groove depth is less than a gasket thickness.

In some embodiments, the threads on the soleplate are a harness.

In a second aspect, a method for installing a liquid riser pipe in which the aforementioned eccentric flange is used is provided. Step 1 of a liquid riser passing through the gasket of the eccentric flange and the bottom plate; Step 2 of inserting a gasket into the first circular groove, covering the bottom plate, covering the flange bolt with an anti-locking pad, and then penetrating the flange plate and rotating it into the bottom plate to firmly fix it; and Step 3, the sealing ring is put into the concave groove of the edge of the flange plate, the liquid riser pipe and the eccentric flange assembly are inserted into the furnace body mounting hole, and fixed using a tightening bolt and a pressing block.

In some embodiments, the liquid riser projecting ridge bottom surface is pressed onto a gasket, and the gasket is pressed into the bottom plate second circular groove.

Compared with the prior art, the advantageous effects of the present invention are as follows.

The present invention provides an eccentric flange and a liquid riser installation method. This effectively solves the problems of installation and air leakage due to refractory sedimentation. In addition, by designing the flange in an eccentric shape using the space below the liquid riser, the installation position of the liquid riser was moved downward to avoid sedimenting refractories. In addition, the sealing stability is ensured by using a combination of gasket, sealing ring and copper pad.

In order to more clearly describe the technical solutions in the embodiments of the present application, the following briefly introduces drawings used in the description of the embodiments. In the following description, the drawings are some embodiments of the present application. Those skilled in the art can obtain other drawings from these drawings without creative efforts.
1 is an exploded view of an eccentric flange and a liquid riser according to the present invention.
2 is an installation view of an eccentric flange and a liquid riser pipe according to the present invention.
3 is a schematic diagram of an eccentric flange and a flange plate according to the present invention.
4 is a schematic diagram of an eccentric flange and sole plate according to the present invention.
Here, 1 is flange bolt, 2 is copper pad, 3 is flange plate, 4 is sealing ring, 5 is gasket, 6 is bottom plate, 7 is tightening bolt, 8 is pressure block, 9 is liquid rise pipe, 10 is furnace body. am.

DESCRIPTION OF EMBODIMENTS The following clearly and completely describes the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. The described embodiments are only some examples, not all of the embodiments of the present application. All other embodiments obtained by a person skilled in the art without creative work based on the embodiments of the present application fall within the protection scope of the present application.

Terms such as "first", "second", "third", and "fourth" used in the specification and claims of the present application and the accompanying drawings are not intended to describe a specific order, but to distinguish different objects. that was used for Also, the terms "comprising" and "including" and variations thereof are intended to include a non-exclusive inclusion. For example, a process, method, product, or equipment comprising a series of steps or units is not limited to the listed steps or units, optionally further includes unlisted steps or units, or such process, method, product, or equipment is unique. It may optionally further include other steps or units of.

Reference herein to “an embodiment” means that a particular feature, structure, or characteristic described with reference to the embodiment may be included in at least one embodiment of the present application. The appearances of the above phrases at respective positions in the specification do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art can expressly or implicitly understand that the embodiments described herein may be combined with other embodiments.

Example 1:

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4 .

The eccentric flange includes a flange bolt (1), an actuation pad (2), a flange plate (3), a sealing ring (4), a gasket (5) and a bottom plate (6). The flange plate 3 is an eccentric round ring-shaped steel plate (ie, a round hole is opened on the round steel plate, and the center of the circular hole and the center of the round steel plate do not overlap). The flange plate 3 is used to mount the gasket 5 by processing the first circular groove by centrifuging the inner hole centrifugally. The centrifugal force of the outer circle of the flange plate (3) is used to process a single concave groove on the edge of the flange plate (3) to mount the sealing ring (4). Several circular holes are machined around the first circular groove and are used to penetrate the flange bolt (1). The bottom plate 6 is also an eccentric round ring-shaped steel plate, and is used to mount the gasket 5 by processing a second circular groove by centrifugal centrifugation of the inner hole centrifugal. A thread is machined around the second circular groove on the bottom plate (6) and used to rotate the flange bolt (1).

In some embodiments, to ensure sealing performance, the flange plate 3 is processed on one side of the first circular groove and the concave groove, and the surface roughness reaches 3.2. The flange plate 3 first circular groove depth is smaller than the gasket 5 thickness to ensure that the gasket 5 is placed in a compressed form. The depth of the concave groove at the edge of the flange plate 3 is smaller than the thickness of the sealing ring 4 to ensure that the sealing ring 4 is elevated in a compressed state. The inner diameter of the sealing ring 4 is greater than the outer diameter on which the furnace body 10 is mounted, ensuring that the sealing ring 4 is placed in a compressed state between the flange plate 3 and the steel plate of the furnace body 10. The inner diameter of the gasket (5) is slightly larger than the outer diameter of the liquid riser tube (9), and the outer diameter of the gasket (5) is the same as the outer diameter of the protruding ridge of the liquid riser tube (9), so that the installation is easy, the positioning is accurate, and the contact area is maximized. guarantee The second circular groove depth of the bottom plate 6 is smaller than the gasket 5 thickness to ensure that the gasket 5 is placed in a compressed state. The thread on the bottom plate 6 is a harness and ensures that the flange bolts 1 are rotated to a sufficient depth, while preventing the problem that the flange bolts 1 are not tight due to being blocked by foreign matter. The inner diameter of the driving pad 2 is slightly larger than the outer diameter of the flange bolt 1, and the flange bolt 1 uses an external hex bolt to ensure that the driving pad 2 is fully pressed to perform a sealing function.

The installation method of the liquid riser pipe 9 uses the above eccentric flange. It includes a tightening bolt (7), a press block (8), a liquid riser (9) and a furnace body (10). The liquid riser pipe 9 is a hemispherical tubular body having a protruding ridge tail at one top, and a circular hole at the center of the hemisphere of the tail, which is used to distribute the aluminum liquid. First, the liquid riser pipe (9) passes through the gasket (5) and the bottom plate (6) of the eccentric flange. The diameter of the inner hole of the bottom plate 6 is slightly larger than the outer diameter of the liquid riser tube 9, and the diameter of the second circular groove of the bottom plate 6 is slightly larger than the diameter of the protruding ridge of the liquid riser tube 9. The bottom surface of the protruding ridge of the liquid riser pipe 9 is pressed onto the gasket 5, and the gasket 5 is pressed into the second circular groove of the bottom plate 6. After that, insert the gasket (5) into the first circular groove of the flange plate (3), cover the bottom plate (6), cover the flange bolt (1) with the red pad (2), and penetrate the flange plate (3). Rotate it into the bottom plate (6) and fix it firmly. Finally, put the sealing ring (4) into the concave groove of the edge of the flange plate (3), insert the liquid rise pipe (9) and the eccentric flange assembly into the mounting hole of the furnace body (10), tighten the bolt (7) and press block Fix using (8).

It can be seen that the present invention effectively solves the problems of installation and air leakage due to refractory sedimentation by providing a method for installing the eccentric flange and the liquid riser pipe 9. By designing the flange in an eccentric shape using the space below the liquid riser pipe 9, the installation position of the liquid riser pipe 9 was moved downward to avoid the refractory material settling. In addition, sealing stability was ensured by using a method in which a gasket, a sealing ring 4 and an anti-locking pad 2 were combined.

Compared with the prior art, the advantageous effects of the present invention are as follows.

The present invention provides an eccentric flange and a liquid riser installation method. This effectively solves the problems of installation and air leakage due to refractory sedimentation. In addition, by designing the flange in an eccentric shape using the space below the liquid riser, the installation position of the liquid riser was moved downward to avoid sedimenting refractories. In addition, the sealing stability was ensured by using a combination of gasket, sealing ring and copper pad.

Although embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereto.

Claims (10)

In the eccentric flange,
It includes a flange bolt (1), an actuation pad (2), a flange plate (3), a sealing ring (4), a gasket (5) and a bottom plate (6),
The flange plate 3 is an eccentric round ring-shaped steel plate, and a first circular groove is opened with the centrifugal center of the inner hole of the flange plate 3 to be used to mount the gasket 5, and the outer circle of the flange plate 3 A concave groove is installed on the edge of the flange plate (3) by centrifugation and is used to mount the sealing ring (4), and a circular hole is machined around the first circular groove to pass through the flange bolt (1), The bottom plate 6 is an eccentric round ring-shaped steel plate, and a second circular groove is opened centrifugally around the inner hole centrifugally and is used to mount the gasket 5, and a screw thread is formed around the second circular groove on the bottom plate 6. Eccentric flange, characterized in that it is machined and used to rotate the flange bolt (1). According to claim 1,
The flange plate 3 is installed on one side of the first circular groove and the concave groove, and the surface roughness is 3.2. According to claim 1,
Eccentric flange, characterized in that the first circular groove depth is smaller than the gasket (5) thickness. According to claim 3,
Eccentric flange, characterized in that the depth of the concave groove on the edge of the flange plate (3) is smaller than the thickness of the sealing ring (4). According to claim 4,
Eccentric flange, characterized in that the inner diameter of the sealing ring (4) is larger than the outer diameter in which the furnace body (10) is installed. According to claim 5,
Eccentric flange, characterized in that the inner diameter of the gasket (5) is slightly larger than the outer diameter of the liquid riser pipe (9), and the outer diameter of the gasket (5) is the same as the outer diameter of the protruding ridge of the liquid riser pipe (9). According to claim 1,
Eccentric flange, characterized in that the second circular groove depth is smaller than the gasket (5) thickness. According to claim 7,
Eccentric flange, characterized in that the thread on the bottom plate (6) is a harness. In the installation method of the liquid riser pipe (9) using the eccentric flange according to any one of claims 1 to 8,
Step 1, in which the liquid riser pipe 9 passes through the gasket 5 and the bottom plate 6 of the eccentric flange; After inserting the gasket (5) into the first circular groove, cover the bottom plate (6), cover the flange bolt (1) with the anti-locking pad (2), and penetrate the flange plate (3) to rotate into the bottom plate (6) step 2 to firmly fix it; And the sealing ring 4 is put into the concave groove of the edge of the flange plate 3, the liquid rising pipe 9 and the eccentric flange combination are inserted into the mounting hole of the furnace body 10, and the tightening bolt 7 and the pressing block ( A liquid riser installation method comprising step 3 of fixing using 8). According to claim 9,
The liquid riser installation method, characterized in that the bottom surface of the protruding ridge of the liquid riser pipe (9) is pressed onto the gasket (5), and the gasket (5) is pressed into the second circular groove of the bottom plate (6).

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