Device for quickly and automatically detecting cracks of shaft sleeve of mechanical sealing element

Abstract

The utility model discloses a mechanical sealing element shaft sleeve crack rapid automatic detection device which comprises a bottom plate, a first supporting plate and a second supporting plate are symmetrically and fixedly installed on the top of the bottom plate respectively, and a lifting plate is arranged on the opposite sides of the first supporting plate and the second supporting plate. A sliding groove is formed in the side, close to the lifting plate, of the first supporting plate, an output shaft of a first motor rotates to drive a threaded rod to rotate, through indirect limiting of a limiting groove, a limiting rod and a limiting block, the lifting block can move in the sliding groove, then the lifting plate is driven to move, and the distance between a detection head and a shaft sleeve is adjusted. And then the output shaft of the second motor rotates to drive the circular plate to rotate, and the circular plate drives the connecting plate and the detection head to rotate, so that the detection head does circular motion around the shaft sleeve, the shaft sleeve is automatically detected, the detection precision is improved, and the occurrence of false detection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeve detection, in particular to a rapid automatic detection device for cracks in a shaft sleeve of a mechanical seal. Background Art

[0002] Since the transmission shaft of the liquid medium rotating machinery runs through the inside and outside of the equipment, there is a circumferential gap between the shaft and the equipment. The medium in the equipment leaks outward through the gap. Therefore, there must be a shaft sealing device to prevent leakage. There are many types of shaft seals. Mechanical seals have the advantages of less leakage and long life. They have become the most important shaft sealing method. Mechanical seals are axial end face sealing devices that rely on the pre-tightening of the sleeve end face sealing pair by elastic elements and the compression of the medium pressure and the elastic element pressure to achieve sealing. They have been widely used in rotating machinery such as centrifugal pumps, centrifuges, reactors and compressors.

[0003] However, most existing detection methods use manual visual inspection, which is labor-intensive, has low accuracy, and is prone to false detection. Therefore, we need to propose a rapid automatic detection device for mechanical seal sleeve cracks. Utility Model Content

[0004] The purpose of the utility model is to provide a mechanical seal shaft sleeve crack rapid automatic detection device, which can automatically detect the shaft sleeve, improve the detection accuracy, and reduce the occurrence of false detection, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A device for quickly and automatically detecting cracks in a mechanical seal sleeve comprises a base plate, a first support plate and a second support plate are symmetrically fixedly installed on the top of the base plate, a lifting plate is arranged on the opposite side of the first support plate and the second support plate, a slide groove is provided on the side of the first support plate close to the lifting plate, a lifting component for driving the lifting plate to lift and lower is arranged inside the slide groove, a detection component for detecting the sleeve is also arranged on the lifting plate, the base plate is fixedly installed with a limiting column between the first support plate and the second support plate, and a limiting ring is fixedly sleeved on the outer wall of the limiting column.

[0007] Preferably, the lifting assembly includes a threaded rod, which is rotatably installed inside the slide groove, the top end of the threaded rod passes through the first support plate and is fixedly connected to the first motor, and the outer wall of the threaded rod is threadedly connected to a lifting block.

[0008] Preferably, a limiting groove is provided on one side of the second supporting plate close to the lifting plate, a limiting rod is fixedly installed inside the limiting groove, and a limiting block is slidably installed on the outer wall of the limiting rod.

[0009] Preferably, the limiting block and the lifting block are fixedly connected to both sides of the lifting plate respectively, and the top of the lifting plate and the tops of the lifting block and the limiting block are all located on the same horizontal line.

[0010] Preferably, the detection component includes a second motor, which is fixedly mounted on the top of the lifting plate, the bottom end of the output shaft of the second motor passes through the lifting plate and is fixedly connected to a circular plate, the bottom of the circular plate is fixedly connected to a connecting plate, and a detection head is provided on one side of the connecting plate.

[0011] Preferably, the limiting column is located at the center below the circular plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model drives the threaded rod to rotate by rotating the output shaft of the first motor, and can make the lifting block move inside the slide groove through the indirect limitation of the limit groove, the limit rod and the limit block, thereby driving the lifting plate to move, adjusting the distance between the detection head and the shaft sleeve, and then driving the circular plate to rotate by rotating the output shaft of the second motor, and the circular plate drives the connecting plate and the detection head to rotate, so that the detection head makes a circular motion around the shaft sleeve, and the shaft sleeve is automatically detected, thereby improving the detection accuracy and reducing the occurrence of false detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the left side of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the right side of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model in section.

[0017] In the figure: 1. bottom plate; 2. first support plate; 3. second support plate; 4. lifting plate; 5. slide groove; 6. limit column; 7. limit ring; 8. threaded rod; 9. first motor; 10. lifting block; 11. limit groove; 12. limit rod; 13. limit block; 14. second motor; 15. circular plate; 16. connecting plate; 17. detection head. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 , the utility model provides a technical solution:

[0020] A quick automatic detection device for cracks in a mechanical seal sleeve comprises a bottom plate 1, a first support plate 2 and a second support plate 3 are symmetrically fixedly installed on the top of the bottom plate 1, a lifting plate 4 is arranged on the opposite side of the first support plate 2 and the second support plate 3, a slide groove 5 is provided on the side of the first support plate 2 close to the lifting plate 4, a lifting component for driving the lifting plate 4 to lift and lower is arranged inside the slide groove 5, and a detection component for detecting the sleeve is also arranged on the lifting plate 4, the bottom plate 1 is located between the first support plate 2 and the second support plate 3, a limiting column 6 is fixedly installed, a limiting ring 7 is fixedly sleeved on the outer wall of the limiting column 6, when detecting the sleeve, firstly, the bearing sleeve is connected to the outer wall of the limiting column 6, the limiting ring 7 supports the bottom of the sleeve and limits the sleeve, and the preparation work before detection is completed;

[0021] The lifting assembly includes a threaded rod 8, which is rotatably mounted inside the slide groove 5. The top of the threaded rod 8 passes through the first support plate 2 and is fixedly connected to the first motor 9. The outer wall of the threaded rod 8 is threadedly connected to a lifting block 10. The output shaft of the first motor 9 rotates to drive the threaded rod 8 to rotate, so that the lifting block 10 can move up and down.

[0022] A limiting groove 11 is provided on one side of the second support plate 3 close to the lifting plate 4, a limiting rod 12 is fixedly installed inside the limiting groove 11, and a limiting block 13 is slidably installed on the outer wall of the limiting rod 12, which can indirectly limit the lifting block 10 through the lifting plate 4, so that the lifting block 10 can move when the threaded rod 8 rotates;

[0023] The limit block 13 and the lifting block 10 are fixedly connected to the two sides of the lifting plate 4, respectively, and the top of the lifting plate 4 and the tops of the lifting block 10 and the limit block 13 are all located on the same horizontal line, which can improve the stability of the lifting plate 4 when moving, thereby improving the stability of the detection component and improving the detection accuracy;

[0024] The detection component includes a second motor 14, which is fixedly mounted on the top of the lifting plate 4. The bottom end of the output shaft of the second motor 14 penetrates the lifting plate 4 and is fixedly connected to a circular plate 15. The bottom of the circular plate 15 is fixedly connected to a connecting plate 16. A detection head 17 is arranged on one side of the connecting plate 16. The output shaft of the second motor 14 rotates to drive the circular plate 15 to rotate. The circular plate 15 drives the connecting plate 16 and the detection head 17 to rotate, so that the detection head 17 makes a circular motion around the shaft sleeve, and the shaft sleeve is automatically detected, thereby improving the detection accuracy and reducing the occurrence of false detection.

[0025] The limiting column 6 is located at the center below the circular plate 15, thereby ensuring that the detection head 17 can perform a circular motion around the shaft sleeve when rotating.

[0026] Working principle: When the utility model is used, the bearing sleeve is first connected to the outer wall of the limit column 6, the limit ring 7 supports the bottom of the sleeve and limits the sleeve to complete the preparation work before detection, and then the output shaft of the first motor 9 rotates to drive the threaded rod 8 to rotate, and the indirect limitation of the limit groove 11, the limit rod 12 and the limit block 13 can make the lifting block 10 move inside the slide groove 5, and then drive the lifting plate 4 to move, adjust the distance between the detection head 17 and the sleeve, and then the output shaft of the second motor 14 rotates to drive the circular plate 15 to rotate, and the circular plate 15 drives the connecting plate 16 and the detection head 17 to rotate, so that the detection head 17 makes a circular motion around the sleeve, and automatically detects the sleeve, thereby improving the detection accuracy and reducing the occurrence of false detection.

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

Claims

1. A mechanical seal sleeve crack rapid automatic detection device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is symmetrically fixedly mounted with a first support plate (2) and a second support plate (3); a lifting plate (4) is arranged on the opposite side of the first support plate (2) and the second support plate (3); a sliding groove (5) is provided on the side of the first support plate (2) close to the lifting plate (4); a lifting component for driving the lifting plate (4) to move up and down is arranged inside the sliding groove (5); a detection component for detecting the shaft sleeve is also arranged on the lifting plate (4); a limiting column (6) is fixedly mounted on the bottom plate (1) between the first support plate (2) and the second support plate (3); a limiting ring (7) is fixedly sleeved on the outer wall of the limiting column (6).

2. The mechanical seal sleeve crack rapid automatic detection device according to claim 1 is characterized in that: The lifting assembly comprises a threaded rod (8), the threaded rod (8) is rotatably mounted inside the slide groove (5), the top end of the threaded rod (8) passes through the first support plate (2) and is fixedly connected to the first motor (9), and the outer wall of the threaded rod (8) is threadedly connected to a lifting block (10).

3. The mechanical seal sleeve crack rapid automatic detection device according to claim 2 is characterized in that: A limiting groove (11) is provided on one side of the second supporting plate (3) close to the lifting plate (4), a limiting rod (12) is fixedly installed inside the limiting groove (11), and a limiting block (13) is slidably installed on the outer wall of the limiting rod (12).

4. The mechanical seal sleeve crack rapid automatic detection device according to claim 3 is characterized in that: The limit block (13) and the lifting block (10) are respectively fixedly connected to the two sides of the lifting plate (4), and the top of the lifting plate (4) and the tops of the lifting block (10) and the limit block (13) are all located on the same horizontal line.

5. The mechanical seal sleeve crack rapid automatic detection device according to claim 1 is characterized in that: The detection assembly comprises a second motor (14), the second motor (14) is fixedly mounted on the top of the lifting plate (4), the bottom end of the output shaft of the second motor (14) passes through the lifting plate (4) and is fixedly connected to a circular plate (15), the bottom of the circular plate (15) is fixedly connected to a connecting plate (16), and a detection head (17) is arranged on one side of the connecting plate (16).

6. The mechanical seal sleeve crack rapid automatic detection device according to claim 5, characterized in that: The limiting column (6) is located at the center below the circular plate (15).

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