Floating check ring measuring device

Abstract

The utility model relates to a floating check ring measuring device, and belongs to the technical field of measuring instruments. The floating check ring measuring device comprises a base, a plurality of linear guide rails and a planeness measuring mechanism, a reference shaft is arranged in the middle of the base, the linear guide rails are evenly arranged on the base with the reference shaft as the center, guide rail connecting plates are arranged on the linear guide rails and fixed to the linear guide rails through locking screws, and the planeness measuring mechanism is arranged on the base. A measuring reference ball and a limiting shaft are arranged on the guide rail connecting plate; a stand column is arranged on one side of the reference shaft, a gauge stand is arranged on the stand column, the gauge stand can vertically move on the stand column, and a first dial indicator is arranged on the gauge stand. The floating check ring measuring device is reasonable in structural design, can quickly and accurately position and measure the floating check ring through the cooperation of the reference shaft, the linear guide rail, the measuring reference ball and other components, and improves the measuring efficiency; the whole structure is simple, operation is convenient, cost is low, and application and popularization in production enterprises are facilitated.

Description

Technical Field

[0001] This utility model relates to a floating retaining ring measuring device, belonging to the field of measuring instrument technology. Background Technology

[0002] A floating retaining ring is a mechanical sealing element primarily used in rotating or reciprocating shafts, rods, and other components to achieve dynamic sealing, dust prevention, leak prevention, or media isolation. It is typically made of metal (such as stainless steel) or engineering plastics (such as PTFE or nylon), and has a ring-shaped structure with an inner diameter slightly larger than the shaft diameter, and an outer diameter that fits into the housing or cavity. Its floating design allows for minute axial or radial displacement to compensate for shaft movement deviations or the effects of thermal expansion.

[0003] However, measuring the thickness and flatness of floating retaining rings has long been challenging. Because both the measurement points and reference points have angles, traditional measurement methods struggle to balance simplicity, efficiency, and accuracy. Furthermore, existing measuring devices are typically designed for specific models and cannot simultaneously accommodate floating retaining rings of different sizes and structures. This necessitates different measurement schemes for small precision retaining rings and large industrial retaining rings, further increasing measurement costs and operational complexity. This problem has long constrained the quality control and inspection efficiency of floating retaining ring production. Utility Model Content

[0004] The purpose of this invention is to provide a floating retaining ring measuring device to solve the technical problems existing in the prior art as described above.

[0005] The technical solution provided by this utility model is as follows: A floating retaining ring measuring device includes a base, multiple linear guide rails, and a flatness measuring mechanism. A reference shaft is provided in the middle of the base. The linear guide rails are evenly distributed on the base with the reference shaft as the center. A guide rail connecting plate is provided on each linear guide rail, and the guide rail connecting plate is fixed to the linear guide rail by locking screws. A measuring reference ball and a limiting shaft are provided on the guide rail connecting plate. A column is provided on one side of the reference shaft, and a dial indicator frame is provided on the column. The dial indicator frame can move vertically on the column, and a dial indicator is provided on the dial indicator frame. The flatness measuring mechanism includes an L-shaped plate and a bent plate. The horizontal plate of the L-shaped plate is fixed to the base, and a keyway is provided on the vertical plate of the L-shaped plate. The bent plate can slide within the keyway, and a thickness measuring reference point and a dial indicator are provided on the bent plate.

[0006] The advantages of the above technical solution are: the centered reference axis ensures concentric positioning of the floating retaining ring; the evenly distributed linear guide rails ensure uniform distribution of measuring force, reduce clamping deformation, and improve the accuracy of flatness measurement; the flatness of the upper surface is measured by dial indicator one, while the thickness is measured by dial indicator two on the bending plate and the thickness reference point, realizing multi-parameter detection in a single station, thus improving efficiency; the L-shaped plate keyway and sliding bending plate can adjust the measurement position to accommodate retaining rings of different diameters; the limiting shaft prevents the retaining ring from shifting and ensures consistency in repeated measurements.

[0007] Based on the above technical solution, the present invention can be further improved as follows:

[0008] Furthermore, the height of the thickness measurement reference point is adjusted by adjusting screw two.

[0009] Furthermore, the locking screw penetrates vertically through the guide rail connecting plate, and the end of the locking screw contacts the surface of the linear guide rail.

[0010] Furthermore, the end of the locking screw is provided with an anti-slip pad.

[0011] Furthermore, the height of the measuring reference is adjusted by adjusting screw one.

[0012] Furthermore, the linear guide rails are configured in three parts.

[0013] Furthermore, the base is fixed to four legs.

[0014] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0015] This utility model's floating retaining ring measuring device features a reasonable structural design. Through the cooperation of components such as the reference shaft, linear guide rail, and measuring reference ball, it can quickly and accurately position and measure the floating retaining ring, improving measurement efficiency. The height of both the measuring reference ball and the thickness measuring reference point can be adjusted using adjusting screws, making the measuring device applicable to the measurement of floating retaining rings of various specifications, exhibiting strong versatility and flexibility. The flatness measuring mechanism and dial indicator enable precise measurement of key parameters such as the flatness and thickness of the floating retaining ring, ensuring the accuracy of the measurement results and providing a reliable basis for product quality inspection. This utility model has a simple overall structure, is easy to operate, and has low cost, making it convenient for widespread application in manufacturing enterprises. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 4 .

[0020] In the diagram: 1. Base; 2. Linear guide rail; 3. Reference axis; 4. Guide rail connecting plate; 5. Locking screw; 6. Measuring reference ball; 7. Limiting shaft; 8. Column; 9. Gauge holder; 10. Dial indicator one; 11. L-shaped plate; 12. Bend plate; 13. Keyway; 14. Thickness measuring reference point; 15. Dial indicator two; 16. Adjusting screw one; 17. Adjusting screw two; 18. Support leg. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0022] like Figures 1-4As shown, a floating retaining ring measuring device includes a base 1, three linear guide rails 2, and a flatness measuring mechanism. A reference shaft 3 is located in the center of the base 1, serving as the reference center for measurement. The linear guide rails 2 are evenly distributed on the base 1 with the reference shaft 3 as the center. A guide rail connecting plate 4 is provided on each linear guide rail 2, and the guide rail connecting plate 4 is fixed to the linear guide rail 2 by locking screws 5. A measuring reference ball 6 and a limiting shaft 7 are provided on the guide rail connecting plate 4. The height of the measuring reference ball 6 is adjusted by adjusting screw 16 to adapt to the measurement requirements of floating retaining rings of different specifications. The limiting shaft 7 serves a positioning function, ensuring the accurate position of the floating retaining ring during the measurement process. The locking screw 5 penetrates vertically through the guide rail connecting plate 4, and the end of the locking screw 5 contacts the surface of the linear guide rail 2. The end of the locking screw 5 is provided with an anti-slip pad to enhance the locking effect and prevent the guide rail connecting plate 4 from sliding during the measurement process. A column 8 is provided on one side of the reference shaft 3, and a dial indicator 9 is provided on the column 8. The dial indicator 9 can move vertically on the column 8 to meet the requirements of measuring at different heights. A dial indicator 10 is provided on the dial indicator 9. The flatness measuring mechanism includes an L-shaped plate 11 and a bent plate 12. The horizontal plate of the L-shaped plate 11 is fixed on the base 1, and a keyway 13 is provided on the vertical plate of the L-shaped plate 11. The bent plate 12 can slide in the keyway 13 to realize the measurement of different positions. A thickness measuring reference point 14 and a dial indicator 15 are provided on the bent plate 12. The thickness measuring reference point 14 is adjusted in height by adjusting screw 17 to adapt to the measurement of floating retaining rings of different thicknesses. The base 1 is fixed on four support legs 18, making the entire measuring device more stable and reducing the interference of external factors on the measurement results.

[0023] When using this floating retaining ring measuring device, first place the base 1 stably on the worktable using the four support legs 18. Adjust the single linear guide 2 according to the size of the floating retaining ring. Specifically, use a ruler to accurately measure the distance between the positioning shaft and the limit shaft 7. After measurement, immediately tighten the locking screw 5 on the linear guide 2. Adjust and tighten the other two linear guides 2 in the same way to ensure a stable positioning foundation for the entire measuring device. Next, place the standard floating retaining ring on the support points of the three measuring reference balls 6, and carefully adjust the dial indicator 9 to correspond to the measurement points for the thickness of the floating retaining ring. Then, precisely calibrate the positions for thickness and flatness measurements using adjusting screws 16 and 17, and control the pressure gauge readings to establish accurate standard references for subsequent measurements. After completing the above steps, remove the standard floating retaining ring, place the floating retaining ring to be measured, and accurately calculate the thickness and flatness values ​​of the floating retaining ring by observing the changes in the readings of dial indicators 10 and 15. Compare the obtained value with the tolerance range. If it is within the tolerance range, the workpiece is deemed qualified; otherwise, if it exceeds the tolerance range, it is deemed unqualified.

[0024] This utility model's measuring device significantly improves measurement efficiency through its rigorous and orderly measurement process. Simultaneously, its precise measurement principle and operating procedures ensure the accuracy of the measured values, significantly improve the precision of repeated measurements, and provide a reliable guarantee for the quality inspection of floating retaining rings.

[0025] By following the above steps, the parameters of the floating retaining ring can be measured. The operation is simple and convenient, and the measurement results are accurate and reliable.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A floating retaining ring measuring device, characterized in that, The device includes a base (1), multiple linear guides (2), and a flatness measuring mechanism. A reference shaft (3) is located in the center of the base (1). The linear guides (2) are evenly distributed on the base (1) with the reference shaft (3) as the center. A guide rail connecting plate (4) is provided on each linear guide (2), and the guide rail connecting plate (4) is fixed to the linear guide (2) by locking screws (5). A measuring reference ball (6) and a limiting shaft (7) are provided on the guide rail connecting plate (4). A column (8) is provided on one side of the reference shaft (3). A dial indicator frame (9) is provided on the column (8), and the dial indicator frame (9) can move vertically on the column (8). A dial indicator one (10) is provided on the dial indicator frame (9). The flatness measuring mechanism includes an L-shaped plate (11) and a bent plate (12). The horizontal plate of the L-shaped plate (11) is fixed on the base (1). A keyway (13) is provided on the vertical plate of the L-shaped plate (11). The bent plate (12) can slide in the keyway (13). A thickness measuring reference point (14) and a dial indicator two (15) are provided on the bent plate (12).

2. The floating retaining ring measuring device according to claim 1, characterized in that, The height of the measuring reference ball (6) is adjusted by adjusting screw one (16).

3. The floating retaining ring measuring device according to claim 1, characterized in that, The thickness measurement reference point (14) is adjusted in height by adjusting screw two (17).

4. The floating retaining ring measuring device according to claim 1, characterized in that, The locking screw (5) penetrates vertically through the guide rail connecting plate (4), and the end of the locking screw (5) contacts the surface of the linear guide rail (2).

5. The floating retaining ring measuring device according to claim 4, characterized in that, The end of the locking screw (5) is provided with an anti-slip pad.

6. The floating retaining ring measuring device according to claim 1, characterized in that, The linear guide rails (2) are set to three.

7. The floating retaining ring measuring device according to claim 1, characterized in that, The base (1) is fixed on four legs (18).

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