Sealing end cover with radial positioning structure

Abstract

The utility model provides a sealing end cover with a radial positioning structure, which comprises a bearing assembly component, a transfer positioning component, a limit support component, a radial positioning component, an external connection matching component and an axial limit component, and the radial positioning component of the sealing end cover is mounted in the limit support component through a movable connection structure. According to the sealing end cover, the limiting support component is arranged in the through-connection positioning component and is matched with the sealing static ring, the stability of the sealing static ring in the radial direction can be guaranteed, radial movement of the sealing static ring in the operation process is prevented, and therefore the reliability of the sealing state is guaranteed; the limiting support component corresponds to the through-connection positioning component in position and is used for supporting and fixing other components; the external connection matching component is located in the limiting supporting component and matched with the radial positioning component, the axial limiting component conducts axial limiting on the external connection matching component, the double-limiting design ensures the stability and the sealing performance of the sealing end cover in the operation process, and the operation reliability of the sealing end cover is further improved.

Description

Technical Field

[0001] The utility model relates to a sealing element, in particular to a sealing end cover with a radial positioning structure. Background Art

[0002] Patent document CN220286398U discloses a sealing end cover, which includes a sealing end cover body, a sealing flange connected to the sealing end cover body, an external thread is provided on the circumferential surface of the sealing end cover body, a mounting sleeve is provided on the outer side of the sealing end cover body, a mounting hole is provided on the mounting sleeve, an inner wall of the mounting hole is provided with an internal thread, the mounting sleeve is arranged on the outer side of the sealing end cover body, the sealing end cover body is located in the mounting hole and is threadedly connected to the mounting hole, a plurality of positioning bolts are provided on the mounting sleeve, after the sealing flange is connected to the blocking hole on the equipment body, the end of the positioning bolt is connected to the positioning hole on the equipment body, the mounting sleeve of the structure is connected to the sealing end cover body by threaded connection, the mounting sleeve is convenient to replace, the positioning bolt on the mounting sleeve can be matched with the positioning hole on the equipment body after replacement, when the position of the positioning hole on the equipment body changes, the mounting sleeve of the corresponding specification can be replaced to fix the sealing end cover body, and the operation is flexible and convenient. However, the mounting sleeve of this sealing end cover is connected to the sealing end cover body by thread, and cannot be fine-tuned in the radial direction, so that the assembly flexibility of the sealing end cover is poor, affecting its operating reliability. Therefore, it is necessary to optimize the structure of the sealing end cover to overcome the above-mentioned defects. Utility Model Content

[0003] The utility model aims to provide a sealing end cover with a radial positioning structure to improve its operating reliability.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A sealing end cover with a radial positioning structure, comprising:

[0006] A support assembly component, wherein the support assembly component has an assembly space, and the interior of the support assembly component has an accommodation space adapted to the shape of a sealing static ring of the mechanical seal;

[0007] A transfer positioning member is formed in the supporting assembly member and is adapted to the shape of the mounting frame. The transfer positioning member can be fixed in the mounting frame through a connecting piece, and the supporting assembly member is transferred and positioned by the transfer positioning member;

[0008] A position-limiting support component, which is formed in the supporting assembly component and corresponds to the position of the transfer positioning component, and has a support space inside;

[0009] A radial positioning component is installed in the position-limiting support component through a movable connection structure and cooperates with the sealing static ring. The sealing static ring can be radially positioned by the radial positioning component;

[0010] An external connection matching component, which is located in the position-limiting support component and cooperates with the radial positioning component, and can be matched with the installation frame through the external connection matching component;

[0011] An axial limiting component is installed in the limiting support component and cooperates with the external connecting component to axially limit the external connecting component.

[0012] The supporting assembly components include:

[0013] The supporting cylinder shell is cylindrical and has a cylindrical accommodating cavity inside which is matched with the shape of the sealing static ring.

[0014] The transfer positioning component includes:

[0015] A transition flange is formed in the middle of the outer wall of the support shell, extends along the circumference of the support shell, and protrudes radially toward the outside of the support shell;

[0016] A group of positioning notches are provided, each of which is opened in the adapter flange. It axially penetrates both ends of the adapter flange and is arranged sequentially along the circumference of the adapter flange. The adapter flange can be connected to the mounting frame by locking bolts that match the shape of the positioning notches, so that the supporting cylinder shell is fixed in the mounting frame.

[0017] The limiting support components include:

[0018] The limiting ring groove is arranged at the inner end of the outer wall of the supporting cylinder shell and corresponds to the position of the transfer flange. The limiting ring groove extends along the circumference of the supporting cylinder shell and is recessed radially toward the inside of the supporting cylinder shell. A support inner edge and a support outer edge are formed on both sides of the limiting ring groove.

[0019] The radial positioning member comprises:

[0020] A radial bolt hole, which is provided in a group, each radial bolt hole is located in a limiting ring groove, penetrates the inner wall and the outer wall of the supporting cylinder shell in the radial direction, and is arranged in sequence along the circumference of the supporting cylinder shell;

[0021] A group of positioning bolt heads are provided, each of which is screwed into a radial bolt hole through a thread, and its inner end extends into the accommodating cavity and abuts against the outer wall of the sealing static ring, so as to radially position the sealing static ring.

[0022] The external connection components include:

[0023] The outer connecting ring body is located at the limiting ring groove, and its inner diameter is larger than the outer diameter of the inner edge of the support, and its axial width is smaller than the axial width of the limiting ring groove. An outer connecting notch is formed between the outer connecting ring body and the limiting ring groove, and the outer end of the positioning bolt head is screwed into the outer connecting ring body through a thread, and the positioning bolt head performs radial positioning on the outer connecting ring body.

[0024] The axial limiting component includes:

[0025] An axial hoop ring, the inner diameter of which is smaller than the outer diameter of the inner edge of the support, and the outer diameter of which is larger than the inner diameter of the outer ring body, has an operating side opening on its side, through which the axial hoop ring can be expanded so that it fits between the inner edge of the support and the outer ring body, and the axial hoop ring performs axial positioning on the outer ring body.

[0026] The advantages of the utility model are:

[0027] The radial positioning component of the sealing end cover is installed in the limiting support component through a movable connection structure, and cooperates with the sealing static ring, which can ensure the stability of the sealing static ring in the radial direction and prevent it from radially moving during operation, thereby ensuring the reliability of the sealing state. The limiting support component corresponds to the position of the transfer positioning component, and has a supporting space inside it for supporting and fixing other components, thereby enhancing the overall structural stability of the sealing end cover and reducing the possibility of sealing failure due to vibration or impact during operation. The external connection matching component is located in the limiting support component and cooperates with the radial positioning component, and the axial limiting component axially limits the external connection matching component. The double limiting design ensures the stability and sealing of the sealing end cover during operation and prevents sealing failure caused by axial movement. The axial hoop is fitted between the inner edge of the support and the external connection ring body to axially position the external connection ring body, thereby ensuring the stability and sealing between the components and further improving the operating reliability of the sealing end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of a sealing end cover with a radial positioning structure proposed by the utility model;

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the sealing end cover. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0031] like Figure 1 , Figure 2 As shown, the sealing end cover with a radial positioning structure proposed by the utility model includes a supporting assembly component, a transfer positioning component, a limiting support component, a radial positioning component, an external matching component and an axial limiting component. The supporting assembly component has an assembly space, and has an accommodating space adapted to the shape of the sealing static ring of the mechanical seal. The transfer positioning component is formed in the supporting assembly component and adapted to the shape of the mounting frame, and can be fixed in the mounting frame through a connecting piece. The supporting assembly component is transferred and positioned by the transfer positioning component. The limiting support component is formed in the supporting assembly component and corresponds to the position of the transfer positioning component, and has a supporting space inside. The radial positioning component is installed in the limiting support component through a movable connection structure and cooperates with the sealing static ring. The sealing static ring can be radially positioned by the radial positioning component. The external matching component is located in the limiting support component and cooperates with the radial positioning component. It can be matched with the mounting frame through the external matching component. The axial limiting component is installed in the limiting support component and cooperates with the external matching component, and can axially limit the external matching component.

[0032] The support assembly component comprises a support shell 100, which is cylindrical and has a cylindrical accommodating cavity inside which is adapted to the shape of the sealing static ring.

[0033] The adapter positioning component includes an adapter flange 210 and a positioning notch 220. The adapter flange is formed in the middle of the outer wall of the supporting cylinder shell. It extends along the circumference of the supporting cylinder shell and protrudes radially toward the outside of the supporting cylinder shell. A group of positioning notches are provided. Each positioning notch is respectively opened in the adapter flange. It axially penetrates both ends of the adapter flange and is arranged sequentially along the circumference of the adapter flange. The adapter flange can be connected to the mounting frame by a locking bolt that matches the shape of the positioning notch, so that the supporting cylinder shell is fixed in the mounting frame.

[0034] The limiting support component includes a limiting ring groove 300, which is opened at the inner end of the outer wall of the supporting cylinder shell and corresponds to the position of the transfer flange. It extends along the circumference of the supporting cylinder shell and is radially recessed toward the inside of the supporting cylinder shell. A support inner edge 310 and a support outer edge 320 are formed on both sides of the limiting ring groove.

[0035] The radial positioning component includes a radial bolt hole 410 and a positioning bolt head 420. A group of radial bolt holes are provided, and each radial bolt hole is respectively located in a limiting ring groove. It radially penetrates the inner wall and the outer wall of the supporting cylinder shell, and is arranged sequentially along the circumference of the supporting cylinder shell. A group of positioning bolt heads are provided, and each positioning bolt head is respectively screwed into the radial bolt hole through a thread, and its inner end extends into the accommodating cavity and abuts against the outer wall of the sealing static ring, so as to radially position the sealing static ring.

[0036] The external connection matching component includes an external connection ring body 500, which is located at the limiting ring groove. Its inner diameter is larger than the outer diameter of the inner edge of the support, and its axial width is smaller than the axial width of the limiting ring groove. An external connection notch is formed between the external connection ring body and the limiting ring groove. The outer end of the positioning bolt head is screwed into the external connection ring body through a thread, and the positioning bolt head performs radial positioning on the external connection ring body.

[0037] The axial limiting component includes an axial hoop 600, the inner diameter of which is smaller than the outer diameter of the inner edge of the support, and the outer diameter of which is larger than the inner diameter of the outer ring body. An operating side opening 610 is provided on the side of the axial hoop, through which the axial hoop can be expanded so that it can fit between the inner edge of the support and the outer ring body, and the outer ring body can be axially positioned by the axial hoop.

[0038] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A sealing end cover with a radial positioning structure, characterized in that: include: A support assembly component, wherein the support assembly component has an assembly space, and the interior of the support assembly component has an accommodation space adapted to the shape of a sealing static ring of the mechanical seal; A transfer positioning member is formed in the supporting assembly member and is adapted to the shape of the mounting frame. The transfer positioning member can be fixed in the mounting frame through a connecting piece, and the supporting assembly member is transferred and positioned by the transfer positioning member; A position-limiting support component, which is formed in the supporting assembly component and corresponds to the position of the transfer positioning component, and has a support space inside; A radial positioning component is installed in the position-limiting support component through a movable connection structure and cooperates with the sealing static ring. The sealing static ring can be radially positioned by the radial positioning component; An external connection matching component, which is located in the position-limiting support component and cooperates with the radial positioning component, and can be matched with the installation frame through the external connection matching component; An axial limiting component is installed in the limiting support component and cooperates with the external connecting component to axially limit the external connecting component.

2. The sealing end cover with radial positioning structure according to claim 1, characterized in that: The supporting assembly components include: The supporting cylinder shell is cylindrical and has a cylindrical accommodating cavity inside which is matched with the shape of the sealing static ring.

3. The sealing end cover with radial positioning structure according to claim 2, characterized in that: The transfer positioning component includes: A transition flange is formed in the middle of the outer wall of the support shell, extends along the circumference of the support shell, and protrudes radially toward the outside of the support shell; A group of positioning notches are provided, each of which is opened in the adapter flange. It axially penetrates both ends of the adapter flange and is arranged sequentially along the circumference of the adapter flange. The adapter flange can be connected to the mounting frame by a locking bolt that matches the shape of the positioning notch.

4. The sealing end cover with radial positioning structure according to claim 3, characterized in that: The limiting support components include: The limiting ring groove is arranged at the inner end of the outer wall of the supporting cylinder shell and corresponds to the position of the transfer flange. The limiting ring groove extends along the circumference of the supporting cylinder shell and is recessed radially toward the inside of the supporting cylinder shell. A support inner edge and a support outer edge are formed on both sides of the limiting ring groove.

5. The sealing end cover with radial positioning structure according to claim 4, characterized in that: The radial positioning member comprises: A radial bolt hole, which is provided in a group, each radial bolt hole is located in a limiting ring groove, penetrates the inner wall and the outer wall of the supporting cylinder shell in the radial direction, and is arranged in sequence along the circumference of the supporting cylinder shell; A group of positioning bolt heads are provided, each positioning bolt head is screwed into a radial bolt hole through a thread, and the inner end thereof extends into the accommodating cavity and abuts against the outer wall of the sealing static ring.

6. The sealing end cover with radial positioning structure according to claim 5, characterized in that: The external connection components include: The outer connection ring body is located at the limiting ring groove, its inner diameter is larger than the outer diameter of the inner edge of the support, and its axial width is smaller than the axial width of the limiting ring groove. An outer connection notch is formed between the outer connection ring body and the limiting ring groove, and the outer end of the positioning bolt head is screwed into the outer connection ring body through a thread.

7. The sealing end cover with radial positioning structure according to claim 6, characterized in that: The axial limiting component includes: The axial hoop has an inner diameter smaller than the outer diameter of the inner edge of the support and an outer diameter larger than the inner diameter of the outer ring body. An operating side opening is provided on the side of the axial hoop, through which the axial hoop can be expanded to fit between the inner edge of the support and the outer ring body.

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