Floating seal ring flatness automatic detection device

By designing an automatic detection device for the flatness of floating seal rings, and utilizing a lifting drive mechanism and a contact displacement sensor, the problem of liquid leakage caused by unevenness of the floating seal ring flatness was solved, achieving a simple and automatic detection effect.

CN223623612UActive Publication Date: 2025-12-02LONGKING FUJIAN EXCAVATOR CO LTD
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Patent Information

Application Number
CN202520253572.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-12-02
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

In existing technologies, unevenness of the flatness of the installed floating seal ring leads to leakage of liquid in the inner cavity, and there is a lack of effective automatic detection methods.

Method used

An automatic detection device for the flatness of a floating seal ring was designed. It adopts a lifting drive mechanism and a contact displacement sensor. By detecting the flatness of the floating seal ring body, the contact displacement sensor detects the change in force when the flatness is uneven, thus achieving automatic detection.

Benefits of technology

It enables simple and automatic detection of the flatness of the floating seal ring, which can promptly detect unevenness and prevent liquid leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a floating seal ring planeness automatic detection device which comprises a detection table body, a base is installed on the detection table body through a lifting driving mechanism, a floating seal ring sealing seat is fixedly installed on the top side of the base, a sealing seat groove is formed in the floating seal ring sealing seat, two side grooves are formed in the sealing seat groove respectively, and the floating seal ring planeness automatic detection device comprises a detection table body. According to the floating seal ring, when the planeness of the floating seal ring body is flat, the contact type displacement sensors cannot generate acting force on the shaft sleeve, the multiple contact type displacement sensors can smoothly and continuously move downwards, and when the planeness of the floating seal ring body is not flat, the contact type displacement sensors cannot generate acting force on the shaft sleeve. When the contact type displacement sensor abuts against the side face of the extending shaft sleeve in a contact mode, acting force can be generated on the shaft sleeve, the uneven phenomenon of the floating seal ring body can be detected through the contact type displacement sensor, and operation is very easy and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to an automatic detection device for the flatness of a floating seal ring. Background Technology

[0002] A floating seal ring is a mechanical seal device typically used to prevent liquid or gas leakage. The working principle of a floating seal ring is to prevent leakage by applying pressure between two sealing surfaces. Floating seal rings are commonly used in rotating machinery such as pumps and compressors, and they can be found in various industrial fields, including chemical, oil and gas, and water treatment.

[0003] After installation, the flatness of existing floating seal rings needs to be checked. If the flatness of the installed floating seal ring is uneven, it will lead to leakage of the internal liquid. Therefore, we propose an automatic floating seal ring flatness detection device to solve the above problem. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an automatic detection device for the flatness of a floating seal ring, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic detection device for the flatness of a floating seal ring includes a detection table. A base is mounted on the detection table via a lifting drive mechanism. A floating seal ring seat is fixedly mounted on the top side of the base. The floating seal ring seat has a seat groove. Two side grooves are formed in the seat groove, and a bushing is movably installed in each side groove. The floating seal ring seat has two inner grooves, in which a floating seal ring body and two rubber rings are placed respectively. Multiple circular grooves are formed in the floating seal ring seat, and elastic connection mechanisms for the bushings are provided in each circular groove. A frame is fixedly mounted on the top side of the detection table, and a detection mechanism is mounted on the frame.

[0007] Preferably, the lifting drive mechanism includes a cylinder and a limiting rod. The cylinder is fixedly installed on the inner wall of the bottom side of the detection table. The output end of the cylinder passes through the body of the detection table and is fixedly installed on the bottom side of the base. One end of a plurality of limiting rods is fixedly installed on the bottom side of the base. The other ends of the plurality of limiting rods all movably pass through the body of the detection table, so as to drive the base and the floating seal ring seat to move upward.

[0008] Preferably, two ring grooves are respectively formed in the sealing groove, and an O-ring is provided in the ring groove.

[0009] Preferably, the two side grooves are respectively connected to the corresponding inner grooves, the cross-section of the side grooves is L-shaped, the two corners of the bushing are arc-shaped, and one side of the bushing overlaps the floating seal ring body.

[0010] Preferably, the multiple circular grooves are arranged in a circumferential array, and the circular grooves are located below the inner groove.

[0011] Preferably, the elastic connection mechanism includes a circular plate, a spring, and a connecting rod. The circular plate is movably installed in the circular groove. One end of the spring is fixedly installed on one side of the circular plate, and the other end of the spring is fixedly installed on the inner wall of one side of the circular groove. One end of the connecting rod is fixedly installed on the other side of the circular plate, and the other end of the connecting rod extends movably into the side groove and is fixedly connected to the bushing, so as to facilitate the adjustment of the bushing in the side groove.

[0012] Preferably, the detection mechanism includes a mounting frame and contact displacement sensors. The mounting frame is fixedly installed on the bottom inner wall of the frame, and multiple contact displacement sensors are fixedly installed on the mounting frame. The multiple contact displacement sensors are adapted to the sealing seat groove to facilitate the flatness detection of the floating seal ring body. When the flatness of the floating seal ring body is flat, the side of the bushing is horizontal with the inner wall of the sealing seat groove. When the contact displacement sensor moves downward in the sealing seat groove, the contact displacement sensor will not exert a force on the bushing.

[0013] The beneficial effects of this utility model are as follows: This automatic floating seal ring flatness detection device drives the base and the floating seal ring seat upward through a lifting drive mechanism, causing multiple contact displacement sensors to move downward in the seat groove. When the flatness of the floating seal ring body is flat, the contact displacement sensors will not exert force on the bushing, and the multiple contact displacement sensors can continue to move downward smoothly. When the flatness of the floating seal ring body is uneven, the contact displacement sensors will exert force on the bushing when they contact and abut against the side of the protruding bushing. The unevenness of the floating seal ring body can be detected by the contact displacement sensors, and the operation is very simple. Attached Figure Description

[0014] Figure 1 This is a three-dimensional partial cross-sectional structural schematic diagram of the present invention;

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the structure of part A;

[0016] Figure 3 This utility model Figure 1 A structural diagram of section B;

[0017] Figure 4 This is a schematic diagram of the planar cross-section of the floating seal ring seat of this utility model.

[0018] In the diagram: 1. Detection table; 2. Base; 3. Cylinder; 4. Limiting rod; 5. Floating seal ring seat; 6. Sealing seat groove; 7. Ring groove; 8. O-ring; 9. Side groove; 10. Bushing; 11. Inner groove; 12. Floating seal ring body; 13. Rubber ring; 14. Circular groove; 15. Circular plate; 16. Spring; 17. Connecting rod; 18. Frame; 19. Mounting bracket; 20. Contact displacement sensor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Refer to Figure 1-4An automatic detection device for the flatness of a floating seal ring includes a detection table 1. A base 2 is mounted on the detection table 1 via a lifting drive mechanism. The lifting drive mechanism includes a cylinder 3 and a limit rod 4. The cylinder 3 is fixedly installed on the inner wall of the bottom side of the detection table 1. The output end of the cylinder 3 passes through the outside of the detection table 1 and is fixedly installed on the bottom side of the base 2. One end of a plurality of limit rods 4 is fixedly installed on the bottom side of the base 2. The other ends of the plurality of limit rods 4 all movably pass through the outside of the detection table 1, so as to facilitate the upward movement of the base 2 and the floating seal ring seat 5. A floating seal ring seat 5 is fixedly installed on the top side of the base 2. A seat groove 6 is formed inside the floating seal ring seat 5. Two side grooves 9 are formed inside the seat groove 6, and a bushing 10 is movably installed in each side groove 9. Two inner grooves 11 are formed inside the floating seal ring seat 5, and a floating seal ring body 12 and two rubber rings 13 are placed in each inner groove 11. Multiple circular grooves 14 are formed inside the floating seal ring seat 5, and elastic connecting mechanisms for the bushing 10 are provided within each circular groove 14. The elastic connecting mechanisms include a circular plate 15, a spring 16, and a connecting rod 17. A circular plate 15 is movably installed inside the groove 14. One end of a spring 16 is fixedly installed on one side of the circular plate 15, and the other end of the spring 16 is fixedly installed on the inner wall of one side of the circular groove 14. One end of a connecting rod 17 is fixedly installed on the other side of the circular plate 15. The other end of the connecting rod 17 extends movably into the side groove 9 and is fixedly connected to the bushing 10, facilitating the adjustment of the bushing 10 within the side groove 9. A frame 18 is fixedly installed on the top side of the testing table 1. A testing mechanism is provided on the frame 18. The testing mechanism includes a mounting frame 19 and a contact... The displacement sensor 20 is fixedly mounted on the inner wall of the bottom side of the frame 18. Multiple contact displacement sensors 20 are fixedly mounted on the mounting frame 19. The multiple contact displacement sensors 20 are adapted to the sealing seat groove 6 to facilitate the flatness detection of the floating sealing ring body 12. When the flatness of the floating sealing ring body 12 is flat, the side of the bushing 10 is horizontal with the inner wall of the sealing seat groove 6. When the contact displacement sensor 20 moves downward in the sealing seat groove 6, the contact displacement sensor 20 will not exert a force on the bushing 10.

[0021] Furthermore, two ring grooves 7 are respectively opened in the sealing groove 6, and O-rings 8 are provided in the ring grooves 7.

[0022] Furthermore, the two side grooves 9 are respectively connected to the corresponding inner grooves 11. The cross-section of the side grooves 9 is set in an L-shaped structure, and the two corners of the bushing 10 are set in an arc-shaped structure. One side of the bushing 10 overlaps the floating seal ring body 12.

[0023] Furthermore, multiple circular grooves 14 are arranged in a circumferential array, with the circular grooves 14 located below the inner groove 11.

[0024] In use: When the floating seal ring body 12 installed in the floating seal ring seat 5 is uneven, the floating seal ring body 12 will squeeze the bushing 10 outward in the side groove 9, so that the bushing 10 extends out of the side groove 9. By opening the cylinder 3, the base 2 and the floating seal ring seat 5 are pushed upward, thereby causing the seat groove 6 in the floating seal ring seat 5 to extend upward to the outside of multiple contact displacement sensors 20. When the contact displacement sensor 20 contacts and abuts against the side of the extended bushing 10, it will exert a force on the bushing 10. The contact displacement sensor 20 will detect the unevenness of the floating seal ring body 12. When the flatness of the floating seal ring body 12 is flat, the side of the bushing 10 is level with the inner wall of the seat groove 6. When the contact displacement sensor 20 moves downward in the seat groove 6, the contact displacement sensor 20 will not exert a force on the bushing 10, thereby completing the detection of the flatness of the floating seal ring body 12.

[0025] In summary, the lifting drive mechanism drives the base 2 and the floating seal ring seat 5 to move upward, causing multiple contact displacement sensors 20 to move downward within the seat groove 6. When the surface of the floating seal ring body 12 is flat, the contact displacement sensors 20 will not exert force on the bushing 10, and the multiple contact displacement sensors 20 can continue to move downward smoothly. When the surface of the floating seal ring body 12 is uneven, the contact displacement sensors 20 will exert force on the bushing 10 when they contact and abut against the side of the extended bushing 10. The unevenness of the floating seal ring body 12 can be detected by the contact displacement sensors 20, making the operation very simple.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic detection device for the flatness of a floating seal ring, comprising a detection table (1), characterized in that, The testing table (1) is equipped with a base (2) via a lifting drive mechanism. A floating seal ring seat (5) is fixedly installed on the top side of the base (2). A seat groove (6) is provided in the floating seal ring seat (5). Two side grooves (9) are provided in the seat groove (6). A bushing (10) is movably installed in the side groove (9). Two inner grooves (11) are provided in the floating seal ring seat (5). A floating seal ring body (12) and two rubber rings (13) are placed in the inner grooves (11). Multiple circular grooves (14) are provided in the floating seal ring seat (5). An elastic connection mechanism for the bushing (10) is provided in the circular grooves (14). A frame (18) is fixedly installed on the top side of the testing table (1). A testing mechanism is provided on the frame (18).

2. The automatic detection device for the flatness of a floating seal ring according to claim 1, characterized in that, The lifting drive mechanism includes a cylinder (3) and a limiting rod (4). The cylinder (3) is fixedly installed on the inner wall of the bottom side of the detection table (1). The output end of the cylinder (3) passes through the outside of the detection table (1) and is fixedly installed on the bottom side of the base (2). One end of a plurality of limiting rods (4) is fixedly installed on the bottom side of the base (2). The other end of the plurality of limiting rods (4) all move through the outside of the detection table (1).

3. The automatic detection device for the flatness of a floating seal ring according to claim 1, characterized in that, Two ring grooves (7) are respectively opened in the sealing groove (6), and an O-ring (8) is provided in the ring groove (7).

4. The automatic detection device for the flatness of a floating seal ring according to claim 1, characterized in that, The two side grooves (9) are connected to the corresponding inner grooves (11) respectively. The cross-section of the side grooves (9) is set in an L-shaped structure. The two corners of the bushing (10) are set in an arc-shaped structure. One side of the bushing (10) overlaps on the floating seal ring body (12).

5. The automatic detection device for the flatness of a floating seal ring according to claim 1, characterized in that, Multiple circular grooves (14) are arranged in a circular array, and the circular grooves (14) are located below the inner groove (11).

6. The automatic detection device for the flatness of a floating seal ring according to claim 1, characterized in that, The elastic connection mechanism includes a circular plate (15), a spring (16), and a connecting rod (17). The circular plate (15) is movably installed in the circular groove (14). One end of the spring (16) is fixedly installed on one side of the circular plate (15), and the other end of the spring (16) is fixedly installed on the inner wall of one side of the circular groove (14). One end of the connecting rod (17) is fixedly installed on the other side of the circular plate (15), and the other end of the connecting rod (17) extends movably into the side groove (9) and is fixedly connected to the bushing (10).

7. The automatic detection device for the flatness of a floating seal ring according to claim 1, characterized in that, The detection mechanism includes a mounting frame (19) and a contact displacement sensor (20). The mounting frame (19) is fixedly installed on the bottom inner wall of the frame (18). Multiple contact displacement sensors (20) are fixedly installed on the mounting frame (19) respectively. The multiple contact displacement sensors (20) are adapted to the sealing groove (6).