M-shaped sealing ring detection device

Abstract

The utility model relates to the technical field of sealing rings, in particular to an M-shaped sealing ring detection device, which comprises a clamping mechanism and a rotary detection mechanism. According to the utility model, the M-shaped sealing ring is fixed through the clamping mechanism, so that the M-shaped sealing ring is kept at the coaxial position of the central shaft rod and the driving piece, the embedding block at the end part of the rod body is embedded in the concave structure of the inner wall of the M-shaped sealing ring, the propping rod is propped against the pressure sensor, and the driving piece drives the guide piece and the propping piece to rotate; if curvature change or convex and concave defects occur in the concave structure of the inner wall of the M-shaped sealing ring, the pressure value between the propping rod and the pressure sensor changes, so that the roundness and the flatness of the concave structure of the inner wall of the M-shaped sealing ring can be detected according to the fluctuation of a pressure signal of the pressure sensor; therefore, an effective sealing contact surface is formed between the sealing ring and a matching part, gas or liquid leakage is prevented, and the sealing integrity of a system is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing rings, in particular to an M-type sealing ring detection device. Background Art

[0002] As a key sealing component, M-type sealing rings are widely used in various equipment that require strict sealing conditions, such as hydraulic systems, pneumatic systems, and various precision instruments. The performance of these sealing rings directly affects the reliability and work efficiency of the equipment. The M-type sealing ring has a tortuous cross-sectional shape, and the concave structure design of its inner wall is crucial to achieve efficient sealing. Traditional detection methods rely on manual visual inspection or simple measuring tools. It is difficult to accurately evaluate the tiny defects in the concave structure of the inner wall of the M-type sealing ring, such as irregular depressions, protrusions, or roundness deviations. This causes problems in the quality control of the M-type sealing ring, and it is impossible to ensure that an effective sealing contact surface is formed between the sealing ring and the mating parts to ensure the sealing integrity of the system. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] The utility model aims to provide an M-type sealing ring detection device, which can effectively detect the roundness and flatness of the inner wall concave structure of the M-type sealing ring and ensure the sealing performance of the M-type sealing ring.

[0005] 2. Technical Solution

[0006] The utility model is realized by the following technical solutions:

[0007] The utility model proposes an M-type sealing ring detection device, comprising:

[0008] A clamping mechanism, the clamping mechanism at least comprising a central shaft rod coaxial with the M-shaped sealing ring, and a plurality of clamping arms uniformly arranged circumferentially around the central shaft rod and used for clamping the M-shaped sealing ring;

[0009] A rotation detection mechanism, the rotation detection mechanism includes a driving member, a guide member extending along the radial direction of the M-type sealing ring, a resistance member capable of sliding in the axial direction of the guide member, an elastic member, and a pressure sensor fixed on the guide member, the driving member is coaxially arranged with the central shaft and can drive the guide member to rotate around the central axis of the M-type sealing ring, the elastic member is connected between the guide member and the resistance member and can prevent the resistance member from sliding in the direction of the central axis, the end of the resistance member resists against the inner side wall of the M-type sealing ring, and the resistance member at least partially resists against the pressure sensor.

[0010] Furthermore, the resistance member includes a rod body and an engaging block fixed to the end of the rod body; the guide member includes a guide tube and a connecting rod fixed to one end of the guide tube, the driving member is a driving motor with an output shaft facing upward and fixed to the top of the central shaft, the end of the connecting rod is fixedly connected to the side of the output shaft of the driving motor, the rod body is pluggably connected to the guide tube, and the elastic member is a compression spring fixedly connected between the bottom of the guide tube and the end of the guide rod extending into the guide tube.

[0011] Furthermore, the engaging block includes two parallel and identical arc plates, and a vertical bent plate fixedly connected between the small diameter sides of the arc plates. The two arc plates are respectively engaged in two groove structures on the inner wall of the M-shaped sealing ring, and the outer edge of the arc plate is in contact with the inner wall of the M-shaped sealing ring.

[0012] Furthermore, a sliding groove is provided on the surface of the guide tube along its axial direction, a sliding bar is fixedly connected to the surface of the rod body, the sliding bar is slidably connected to the sliding groove, and the end of the sliding bar passes through the sliding groove and extends to the outside of the guide tube and is fixedly connected to a vertical plate, and a resist rod is fixedly connected to the vertical plate; the pressure sensor is fixed to the tail end of the guide tube on one side relatively away from the driving member, and the end of the resist rod contacts the surface of the pressure sensor.

[0013] Furthermore, the clamping mechanism also includes a slider slidably connected to the central shaft, and the slider is pivoted to multiple rotating rods equidistantly in the circumferential direction. The multiple clamping arms are pivoted to the side of the central shaft at equal distances, and the upper end of each rotating rod is pivoted to the middle of each clamping arm respectively. The upper end of the clamping arm is bent toward the central shaft and rotatably connected to a roller, and the roller is embedded in the recessed structure of the outer wall of the M-shaped sealing ring.

[0014] Furthermore, it also includes a base, the central shaft is fixedly connected to the base, a cylinder is fixedly connected to the base, and the output end of the cylinder faces upward and is fixedly connected to the slider.

[0015] Furthermore, the end of each clamping arm is rotatably connected to at least two coaxially arranged rollers.

[0016] Furthermore, the top of the central shaft is fixedly connected to a motor cover, the drive motor is fixed in the motor cover, a plurality of radial rods are equidistantly fixed on the circumference of the outer shell wall of the motor cover, and support plates are respectively fixed to the ends of the radial rods, and the upper surface of the support plates is slightly lower than the height of the lower edge of the M-shaped sealing ring after being clamped by the clamping arm.

[0017] Furthermore, a control box is fixedly connected to the base, and the pressure sensor, the driving component, and the cylinder are all electrically connected to the control box.

[0018] 3. Beneficial Effects

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model fixes the M-type sealing ring through a clamping mechanism, so that the M-type sealing ring is maintained in a coaxial position with the central shaft rod and the driving member, the engaging block at the end of the rod body is engaged in the recessed structure on the inner wall of the M-type sealing ring, the push rod contacts the pressure sensor, and the driving member drives the guide member and the contact member to rotate. If a curvature change or a convex or concave defect occurs in the recessed structure on the inner wall of the M-type sealing ring, the pressure value between the push rod and the pressure sensor changes. Therefore, the roundness and flatness of the recessed structure on the inner wall of the M-type sealing ring can be detected according to the fluctuation of the pressure signal of the pressure sensor, thereby ensuring that an effective sealing contact surface is formed between the sealing ring and the mating component, preventing gas or liquid leakage, and maintaining the sealing integrity of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the explosion structure of the connection of the guide member, the resistance member and the elastic member;

[0023] Figure 3 It is a partial three-dimensional cross-sectional view of the rotation detection mechanism in the utility model;

[0024] Figure 4 This is the connection relationship diagram between the M-type sealing ring, the roller and the fitting block;

[0025] 1. Clamping mechanism; 11. Central shaft; 12. Clamping arm; 13. Sliding block; 14. Rotating rod; 15. Roller; 2. Rotation detection mechanism; 21. Driving member; 22. Guide member; 221. Guide tube; 2211. Slide groove; 222. Connecting rod; 23. Resistance member; 231. Rod body; 232. Engaging block; 2321. Arc plate; 2322. Vertical bending plate; 233. Sliding bar; 234. Vertical plate; 235. Resistance rod; 24. Elastic member; 25. Pressure sensor; 3. Base; 4. Cylinder; 5. Motor cover; 6. Radial rod; 7. Support plate; 8. Control box. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] An M-type sealing ring detection device, please refer to Figure 1-3, including a clamping mechanism 1 and a rotation detection mechanism 2, the clamping mechanism 1 is used to fix the M-type sealing ring, and the rotation detection mechanism 2 is used to detect the flatness and roundness of the inner ring of the M-type sealing ring.

[0028] The clamping mechanism 1 includes a central shaft 11 and a plurality of clamping arms 12 uniformly arranged around the central shaft 11, the clamping arms 12 can movably clamp the M-shaped sealing ring. Specifically, the central shaft 11 is coaxial with the M-shaped sealing ring, the plurality of clamping arms 12 are equidistantly pivoted to the side of the central shaft 11, a slider 13 is slidably connected to the central shaft 11, the slider 13 is equidistantly pivoted to a plurality of rotating rods 14 in the circumferential direction, the upper end of each rotating rod 14 is respectively pivoted to the middle of each clamping arm 12, the upper end of the clamping arm 12 is bent toward the central shaft 11 and is rotatably connected to a roller 15; In addition, the base 3 also includes a central axis 11 fixedly connected to the base 3, and the base 3 is fixedly connected to a cylinder 4, the output end of the cylinder 4 faces upward and is fixedly connected to the slider 13, when the cylinder 4 is extended, the cylinder 4 drives the slider 13 to slide upward, the slider 13 drives the rotating rod 14 to rotate, the rotating rod 14 drives the clamping arm 12 to rotate inward, and the clamping arm 12 drives the roller 15 to be embedded in the recessed structure of the outer wall of the M-shaped sealing ring, thereby fixing the position of the M-shaped sealing ring, and when the M-shaped sealing ring is fixed, the central axis of the M-shaped sealing ring coincides with the central axis of the central axis 11.

[0029] In this embodiment, the end of each clamp arm 12 is rotatably connected to at least two coaxially arranged rollers 15, see Figure 4 The edges of the two rollers 15 are respectively embedded in the concave structures of the outer wall of the M-shaped sealing ring, and the multiple clamping arms 12 drive the rollers 15 to clamp the M-shaped sealing ring in the circumferential direction, which has a high degree of stability.

[0030] The rotation detection mechanism 2 includes a driving member 21, a guide member 22, a resistance member 23, an elastic member 24 and a pressure sensor 25, wherein a motor cover 5 is fixedly connected to the top of the central shaft 11, the driving member 21 is a driving motor with an output shaft facing upward, the driving motor is fixed in the motor cover 5 and the output shaft of the driving motor is coaxial with the central shaft 11; the guide member 22 extends along the radial direction of the M-shaped sealing ring, the guide member 22 is connected to the driving member 21, and the driving member 21 can drive the guide member 22 to rotate around the central axis of the M-shaped sealing ring; the pressure sensor 25 is fixed on the guide member 22, the end of the resistance member 23 is in contact with the inner side wall of the M-shaped sealing ring, and the resistance member 23 at least partially contacts the pressure sensor 25; the elastic member 24 is connected between the guide member 22 and the resistance member 23 and can prevent the resistance member 23 from sliding toward the central axis. The driving member 21 drives the guide member 22 and the resistance member 23 to rotate around the central axis of the M-type sealing ring, and the end of the resistance member 23 resists the inner wall of the M-type sealing ring. At the same time, the elastic member 24 is compressed to drive part of the structure of the resistance member 23 to resist and press on the pressure sensor 25. If the inner wall of the M-type sealing ring is round and has a uniform curvature, then after one rotation, the pressure value of the pressure sensor 25 does not change significantly, so that the roundness and flatness of the inner wall recessed structure of the M-type sealing ring can be detected, analyzed and characterized by collecting the pressure signal of the pressure sensor 25.

[0031] In this embodiment, the resistance member 23 includes a rod body 231 and an engaging block 232 fixed to the end of the rod body 231, and the engaging block 232 is used to engage with the inner wall recessed structure of the M-shaped sealing ring; the guide member 22 includes a guide tube 221 and a connecting rod 222 fixed to one end of the guide tube 221, and the end of the connecting rod 222 is fixedly connected to the side of the output shaft of the driving motor, and the rod body 231 is plugged and connected to the guide tube 221. The elastic member 24 is a compression spring, and the two ends of the compression spring are respectively fixedly connected to the bottom of the guide tube 221 and the end of the guide rod extending into the guide tube 221.

[0032] The engaging block 232 includes two parallel and identical arc-shaped plates 2321 and a vertical curved plate 2322 fixedly connected between the arc-shaped plates 2321 on one side of the small diameter. Figure 4 The two arc plates 2321 are respectively embedded in the two groove structures of the inner wall of the M-shaped sealing ring. The outer edge of the arc plate 2321 fits with the inner wall of the M-shaped sealing ring, so that the embedding block 232 can quickly respond to the position of the tiny defects and curvature changes in the concave structure of the inner wall of the M-shaped sealing ring when rotating in the circumferential direction, with high detection accuracy and fast response speed.

[0033] A slide groove 2211 is provided on the surface of the guide tube 221 along its axial direction, and a slide bar 233 is fixedly connected to the surface of the rod body 231. The slide bar 233 is slidably connected to the slide groove 2211, and the end of the slide bar 233 passes through the slide groove 2211 and extends to the outside of the guide tube 221 and is fixedly connected to a vertical plate 234. A support rod 235 is fixedly connected to the vertical plate 234. The rod body 231 can move along the axial direction of the guide tube 221, and the slide bar 233 slides in the slide groove 2211 to guide and stabilize the rod body 231; the pressure sensor 25 is fixed to the tail end of the guide tube 221 on one side relatively away from the driving member 21, and the end of the support rod 235 contacts the surface of the pressure sensor 25.

[0034] In addition, a plurality of radial rods 6 are fixed equidistantly on the outer wall of the motor cover 5 in the circumferential direction, and the ends of the radial rods 6 are respectively fixed with support plates 7, and the upper surface of the support plate 7 is slightly lower than the height of the lower edge of the M-shaped sealing ring after being clamped by the clamp arm 12. The M-shaped sealing ring is initially placed on the surface of the support plate 7, and when the clamp arm 12 drives the roller 15 to rotate inward, the roller 15 is embedded in the concave structure of the outer wall of the M-shaped sealing ring, and the M-shaped sealing ring is slightly lifted to a certain height, so that the M-shaped sealing ring is separated from the surface of the support plate 7. Therefore, by setting the support plate 7, the clamping mechanism 1 can quickly locate and fix the M-shaped sealing ring, which is convenient for subsequent detection.

[0035] A control box 8 is fixedly connected to the base 3. The pressure sensor 25, the driving member 21, and the cylinder 4 are all electrically connected to the control box 8. The control box 8 controls the cylinder 4 to start extending and retracting, controls the driving member 21 to start and drive the rotation detection mechanism 2 to rotate as a whole, controls and receives the pressure signal of the pressure sensor 25 and performs analysis and processing to determine the roundness and flatness of the inner wall recessed structure of the M-shaped sealing ring.

[0036] During use, the M-shaped sealing ring is placed on the surface of the support plate 7, and the rod body 231 is pressed to make the rod body 231 shrink a certain distance into the guide tube 221, and the cylinder 4 is started to extend and drive the slider 13 to move upward, and the slider 13 drives the connecting rod 222 to rotate, and the connecting rod 222 drives the clamping arm 12 to rotate inward, and the clamping arm 12 drives the roller 15, so that the edge of the roller 15 is embedded in the concave structure of the outer wall of the M-shaped sealing ring, thereby fixing the M-shaped sealing ring. At this time, the central axis of the central shaft 11 coincides with the central axis of the M-shaped sealing ring, and the rod body 231 is loosened, and the compression spring drives the rod body 231 to move radially toward the outside of the guide tube 221, and the end of the rod body 231 is The engaging block 232 engages with the recessed structure on the inner wall of the M-shaped sealing ring. At the same time, the end of the push rod 235 presses against the surface of the pressure sensor 25, so that the pressure sensor 25 receives an initial pressure value. The driving motor drives the guide member 22 and the resisting member 23 to rotate. If the curvature of the recessed structure on the inner wall of the M-shaped sealing ring decreases or a protruding structure appears, the rod body 231 retracts into the guide tube 221, and the pressure between the end of the push rod 235 and the pressure sensor 25 decreases. Conversely, the pressure increases. The control box 8 can receive the pressure signal received by the pressure sensor 25, thereby characterizing the pressure fluctuation value and reflecting the roundness and flatness of the M-shaped sealing ring.

[0037] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. An M-type sealing ring detection device, characterized in that: include: A clamping mechanism, the clamping mechanism at least comprising a central shaft rod coaxial with the M-shaped sealing ring, and a plurality of clamping arms uniformly arranged circumferentially around the central shaft rod and used for clamping the M-shaped sealing ring; A rotation detection mechanism, the rotation detection mechanism includes a driving member, a guide member extending along the radial direction of the M-type sealing ring, a resistance member capable of sliding in the axial direction of the guide member, an elastic member, and a pressure sensor fixed on the guide member, the driving member is coaxially arranged with the central shaft and can drive the guide member to rotate around the central axis of the M-type sealing ring, the elastic member is connected between the guide member and the resistance member and can prevent the resistance member from sliding in the direction of the central axis, the end of the resistance member resists against the inner side wall of the M-type sealing ring, and the resistance member at least partially resists against the pressure sensor.

2. An M-type sealing ring detection device according to claim 1, characterized in that: The resistance member includes a rod body and an engaging block fixed to the end of the rod body; the guide member includes a guide tube and a connecting rod fixed to one end of the guide tube; the driving member is a driving motor with an output shaft facing upward and fixed to the top of the central shaft; the end of the connecting rod is fixedly connected to the side of the output shaft of the driving motor; the rod body is pluggably connected to the guide tube; the elastic member is a compression spring fixedly connected between the bottom of the guide tube and the end of the guide rod extending into the guide tube.

3. An M-type sealing ring detection device according to claim 2, characterized in that: The engaging block comprises two parallel and identical arc plates and a vertical curved plate fixedly connected between the small diameter sides of the arc plates. The two arc plates are respectively engaged in two groove structures on the inner wall of the M-shaped sealing ring, and the outer edge of the arc plate is in contact with the inner wall of the M-shaped sealing ring.

4. The M-type sealing ring detection device according to claim 2, characterized in that: A sliding groove is provided on the surface of the guide tube along its axial direction, and a sliding bar is fixedly connected to the surface of the rod body. The sliding bar is slidably connected to the sliding groove, and the end of the sliding bar passes through the sliding groove and extends to the outside of the guide tube and is fixedly connected to a vertical plate, and a resist rod is fixedly connected to the vertical plate; the pressure sensor is fixed to the tail end of the guide tube on one side relatively away from the driving member, and the end of the resist rod contacts the surface of the pressure sensor.

5. An M-type sealing ring detection device according to claim 1 or 2, characterized in that: The clamping mechanism also includes a slider slidably connected to the central shaft, and the slider is pivoted to multiple rotating rods equidistantly in the circumferential direction. Multiple clamping arms are pivoted to the side of the central shaft at equal distances. The upper end of each rotating rod is pivoted to the middle of each clamping arm respectively. The upper end of the clamping arm is bent toward the central shaft and rotatably connected to a roller, and the roller is embedded in the recessed structure of the outer wall of the M-shaped sealing ring.

6. An M-type sealing ring detection device according to claim 5, characterized in that: It also includes a base, the central shaft is fixedly connected to the base, a cylinder is fixedly connected to the base, and the output end of the cylinder faces upward and is fixedly connected to the slider.

7. The M-type sealing ring detection device according to claim 5, characterized in that: The end of each clamping arm is rotatably connected to at least two coaxially arranged rollers.

8. The M-type sealing ring detection device according to claim 2, characterized in that: The top of the central shaft is fixedly connected to a motor cover, the drive motor is fixed in the motor cover, a plurality of radial rods are equidistantly fixed on the outer wall of the motor cover in the circumferential direction, and support plates are respectively fixed to the ends of the radial rods, and the upper surface of the support plates is slightly lower than the height of the lower edge of the M-shaped sealing ring after being clamped by the clamping arm.

9. The M-type sealing ring detection device according to claim 6, characterized in that: A control box is fixedly connected to the base, and the pressure sensor, the driving member, and the cylinder are all electrically connected to the control box.

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