Detection tool for measuring leakage rate of dynamic seal

Abstract

The utility model relates to the technical field of seal detection, and discloses a detection tool for measuring dynamic seal leakage rate, which comprises four pressing plates, rotating mechanisms are respectively arranged in the four pressing plates, and an input rotating block and an output rotating block are respectively arranged in every two rotating mechanisms. A second sealing block is installed in the input rotating block, a first sealing block is installed between the second sealing ring and the output rotating block, a test piece is clamped to the outer wall of the second sealing block located in the first sealing block, and a supporting mechanism is arranged at the lower ends of the four pressing plates. Through cooperation of the input rotating block, the output rotating block, the first sealing block and the second sealing block, a sealing detection effect can be achieved on a test piece, high-precision measurement of the dynamic sealing leakage amount can be achieved through a precise sealing structure and a precise rotating mechanism, and the accuracy and reliability of a detection result are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seal detection, in particular to a detection tool for measuring dynamic seal leakage. Background Art

[0002] Modern industrial products and equipment are often accompanied by the use of hydraulic system modules. At present, most related tests are unable to test the leakage of rotating dynamic seals, and can only test the leakage of static seals. Hydraulic systems are mostly composed of complex multi-components. It is often impossible to test the leakage of a single sealing component after assembly. If it is impossible to accurately test the specific seals before assembly, it may cause R&D personnel to not fully understand the sealing situation. This means that the product verification is insufficient, which may cause troubles to product users after entering the market. In order to resolve the troubles caused to customers, a lot of manpower and material resources are also needed to support the subsequent product problem investigation. Therefore, a device that can fully detect the leakage of sealing components to ensure that developers fully understand the test process is particularly important.

[0003] At present, it is impossible to test the leakage of rotating dynamic seal components, which makes it difficult for engineering and technical personnel to fully understand the leakage of the seals. After the hydraulic system is assembled, it is often impossible to measure parameters, which will lead to insufficient verification and greatly increase the uncertainty of performance in the later market. The purpose of the utility model is to provide a test fixture that can accurately measure the leakage of rotating dynamic seal parts, so that engineering and technical personnel can have a more comprehensive grasp of product design. Utility Model Content

[0004] The utility model aims to provide a detection tool for measuring dynamic seal leakage, thereby solving the problem.

[0005] An embodiment of the present application provides a detection tool for measuring leakage of a dynamic seal, comprising four pressure plates, wherein a rotating mechanism is respectively arranged inside the four pressure plates, an input rotating block and an output rotating block are respectively arranged inside every two of the rotating mechanisms, a second sealing block is installed inside the input rotating block, a first sealing block is installed between the second sealing ring and the output rotating block, a test piece is clamped on the outer wall of the second sealing block located inside the first sealing block, a supporting mechanism is arranged at the lower ends of the four pressure plates, and a rotating mechanism is arranged inside the pressure plates.

[0006] By adopting the above technical scheme, the cooperation of the input rotating block, the output rotating block, the first sealing block and the second sealing block can be used to perform sealing detection on the test piece. In the precise sealing structure and rotating mechanism, high-precision measurement of dynamic seal leakage can be achieved, thereby improving the accuracy and reliability of the detection results.

[0007] Optionally, the rotating mechanism includes four bearings, the outer ring walls of the four bearings are fixedly connected to the inner walls of the four pressure plates respectively, and the inner ring walls of every two bearings are fixedly connected to the output rotating block and the output rotating block respectively.

[0008] By adopting the above technical solution, the output rotating block and the output rotating block and the pressure plate can be rotationally connected through the setting of the bearing.

[0009] Optionally, the supporting mechanism includes a base plate, and the base plate is fixedly connected to two of the pressure plates.

[0010] By adopting the above technical solution, the bottom plate can support the pressing plate.

[0011] Optionally, two supporting blocks are fixedly mounted on the inner bottom wall of the base plate by bolts.

[0012] By adopting the above technical solution, the support block can be fixed by the bottom plate.

[0013] Optionally, the upper ends of the two support blocks are fixedly mounted to the two pressure plates.

[0014] By adopting the above technical solution, the two pressing plates can be supported and fixed by the support block.

[0015] Optionally, O-rings are threadedly mounted between the second sealing block and the input rotating block and the first sealing block and the output rotating block.

[0016] By adopting the above technical solution, the O-ring can play a sealing role between the second sealing block and the input rotating block and the first sealing block and the output rotating block.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] The technical solution of the present application can perform sealing detection on the test piece through the cooperation of the input rotating block, the output rotating block, the first sealing block and the second sealing block. With the precise sealing structure and rotating mechanism, high-precision measurement of dynamic seal leakage can be achieved, thereby improving the accuracy and reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 It is a top view schematic diagram of a dynamic seal leakage detection tooling of the utility model;

[0021] Figure 2This is a front cross-sectional view of a dynamic seal leakage detection tooling for measuring the utility model;

[0022] Figure 3 This is a rear cross-sectional view of a dynamic seal leakage detection tooling for measuring the leakage of the utility model;

[0023] Figure 4 The utility model is a parts expansion diagram of a dynamic seal leakage measuring detection tool.

[0024] In the figure: 1, base plate; 2, bearing; 3, pressure plate; 4, input rotating block; 5, first sealing block; 6, O-ring; 7, test piece; 8, bolt; 9, second sealing block; 10, output rotating block; 11, support block. DETAILED DESCRIPTION

[0025] See also Figure 1-4 The utility model provides a technical solution: a dynamic seal leakage detection tool, comprising four pressing plates 3, wherein the four pressing plates 3 are respectively provided with rotating mechanisms, wherein an input rotating block 4 and an output rotating block 10 are respectively provided inside every two rotating mechanisms, wherein a second sealing block 9 is installed inside the input rotating block 4, a first sealing block 5 is installed between the second sealing ring and the output rotating block 10, a test piece 7 is clamped on the outer wall of the second sealing block 9 located inside the first sealing block 5, a supporting mechanism is provided at the lower end of the four pressing plates 3, a rotating mechanism is provided inside the pressing plates 3, and O-rings 6 are respectively threadedly installed between the second sealing block 9 and the input rotating block 4 and the first sealing block 5 and the output rotating block 10.

[0026] In the technical solution of the utility model, the cooperation of the input rotating block 4, the output rotating block 10, the first sealing block 5 and the second sealing block 9 can be used to perform sealing detection on the test piece 7. With the precise sealing structure and rotating mechanism, high-precision measurement of the dynamic seal leakage can be achieved, thereby improving the accuracy and reliability of the detection results.

[0027] In addition, the O-ring 6 can play a sealing role between the second sealing block 9 and the input rotating block 4 and the first sealing block 5 and the output rotating block 10.

[0028] In the technical solution of the utility model, if Figure 2 and Figure 3 As shown, the rotating mechanism includes four bearings 2, the outer ring walls of the four bearings 2 are fixedly connected to the inner walls of the four pressure plates 3 respectively, and the inner ring walls of every two bearings 2 are fixedly connected to the output rotating block 10 and the output rotating block 10 respectively. Through the setting of the bearings 2, the output rotating block 10 and the output rotating block 10 can be rotationally connected to the pressure plate 3.

[0029] In the technical solution of the utility model, if Figure 2 and Figure 4 As shown, the supporting mechanism includes a base plate 1, which is fixedly connected to two of the pressure plates 3. Two support blocks 11 are fixedly installed on the inner bottom wall of the base plate 1 by bolts 8. The upper ends of the two support blocks 11 are fixedly installed to the two pressure plates 3. The base plate 1 can support the pressure plates 3, the base plate 1 can fix the support blocks 11, and the two pressure plates 3 can be supported and fixed by the support blocks 11.

[0030] When in use, firstly, the seal leakage measuring detection tool can be placed on a horizontal plane to ensure that the bottom plate 1 is stably supported, and the rotating mechanism inside the four pressure plates 3 can be checked to ensure that the bearing 2, the input rotating block 4 and the output rotating block 10 are firmly installed and rotate smoothly. The status of the second sealing block 9 and the first sealing block 5 can be checked to ensure that there is no damage and they are correctly installed in the corresponding position. The test piece 7 to be tested is placed between the second sealing block 9 and the first sealing block 5, and it can be ensured that the test piece 7 fits tightly with the sealing block. When the output rotating block 10 and the input rotating block 4 are driven by the bearing 2, the output rotating block 10 and the test piece 7 are driven to rotate together. During the rotation process, the leakage situation is observed and recorded, including the leakage amount, leakage position and other information;

[0031] The bottom plate 1 is provided with an oil discharge hole at the bottom so that the oil leaked during the test can be collected. The second sealing block 9 is preferably threadedly connected to the output rotating block 10, and the second sealing block 9 and the output rotating block 10 are sealed with an O-ring 6. The first sealing block 5 is preferably threadedly connected to the input rotating block 4, and the first sealing block 5 and the input rotating block 4 are sealed with an O-ring 6. The test piece 7 is installed on the second sealing block 9. The external device can be connected to the output rotating block 10 and the input rotating block 4 on both sides and provide a target speed, rotation direction or fix. In addition, the external device is connected to the output rotating block 10 and the input rotating block 4 on both sides, and the oil passes through the middle oil hole of the tooling rotating block and the sealing block, and the leakage amount is measured;

[0032] The leakage of rotating dynamic sealing parts of different specifications can be measured by replacing different combinations of sealing blocks. The performance of the sealing parts under different working conditions can also be tested by changing the combination connection between the sealing block and the two rotating blocks, changing the external input speed, pressure, etc. Similarly, by changing the type of test piece 7, different types of rotating dynamic sealing parts can be measured, including but not limited to PTFE sealing rings, O-rings 6 types of parts, etc.

Claims

1. A dynamic seal leakage detection tool, characterized in that: The invention comprises four pressing plates (3), wherein a rotating mechanism is respectively arranged inside the four pressing plates (3), an input rotating block (4) and an output rotating block (10) are respectively arranged inside every two of the rotating mechanisms, a second sealing block (9) is installed inside the input rotating block (4), a first sealing block (5) is installed between the second sealing ring and the output rotating block (10), a test piece (7) is clamped on the outer wall of the second sealing block (9) located inside the first sealing block (5), a supporting mechanism is arranged at the lower ends of the four pressing plates (3), and a rotating mechanism is arranged inside the pressing plates (3).

2. A dynamic seal leakage detection tool according to claim 1, characterized in that: The rotating mechanism comprises four bearings (2), the outer ring walls of the four bearings (2) being fixedly connected to the inner walls of the four pressure plates (3) respectively, and the inner ring walls of every two bearings (2) being fixedly connected to the output rotating block (10) and the output rotating block (10) respectively.

3. The dynamic seal leakage detection tooling according to claim 1, characterized in that: The support mechanism comprises a bottom plate (1), wherein the bottom plate (1) is fixedly connected to two of the pressure plates (3).

4. A dynamic seal leakage detection tool as claimed in claim 3, characterized in that: Two support blocks (11) are fixedly mounted on the inner bottom wall of the bottom plate (1) via bolts (8).

5. A dynamic seal leakage detection tool as claimed in claim 4, characterized in that: The upper ends of the two support blocks (11) are fixedly mounted on the two pressing plates (3).

6. The dynamic seal leakage detection tooling according to claim 1, characterized in that: O-rings (6) are respectively threadedly mounted between the second sealing block (9) and the input rotating block (4) and the first sealing block (5) and the output rotating block (10).

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