A wear-resistant mechanical seal detection tool

Abstract

This utility model discloses a testing fixture for wear-resistant mechanical seals, comprising: a mounting frame and a test cylinder. A third mounting plate is embedded inside the test cylinder. Two springs are fixedly connected to the inner wall of the third mounting plate, and each spring has a fixedly connected insert block at one end. The end of the insert block away from the spring is inserted into the test cylinder. A sliding rod is fixedly connected to the lower surface of the insert block, and the lower end of the sliding rod extends to the outside of the third mounting plate. A pressure detector is detachably connected to the lower surface of the third mounting plate. A sliding groove is formed on the inner side of the mounting frame, and a test plate is arranged between the inner sides of the mounting frame. The sliding groove is slidably connected to one end of the test plate. A telescopic cylinder is fixedly connected to the side of the mounting frame, and the output end of the telescopic cylinder is fixedly connected to the side of the test plate. This design facilitates the disassembly and maintenance of the pressure detector, reduces the difficulty of disassembling the device, and facilitates alternating testing, thereby improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing component testing devices, and in particular to a testing fixture for wear-resistant mechanical seals. Background Technology

[0002] Seals are materials or parts used to prevent fluids or solid particles from leaking between adjacent mating surfaces and to prevent external impurities such as dust and moisture from entering the interior of machinery and equipment. After production, their sealing performance needs to be tested to ensure product quality.

[0003] Existing testing fixtures cannot perform alternating tests, resulting in low testing efficiency and high difficulty in disassembling the air pressure detector. This utility model device can perform alternating tests on workpieces, improving the testing efficiency of the device and making it easier for staff to disassemble and maintain the air pressure detector. Utility Model Content

[0004] The purpose of this invention is to provide a tooling for testing wear-resistant mechanical seals, which solves the problems of low testing efficiency and high difficulty in disassembling the air pressure detector.

[0005] To achieve the above objectives, a testing fixture for wear-resistant mechanical seals is provided, comprising: a mounting frame and a test cylinder. A third mounting plate is fitted inside the test cylinder. Two springs are fixedly connected to the inner wall of the third mounting plate. One end of each spring is fixedly connected to a plug. The end of the plug away from the spring is inserted into the test cylinder. A sliding rod is fixedly connected to the lower surface of the plug. The lower end of the sliding rod extends to the outside of the third mounting plate. A pressure detector is detachably connected to the lower surface of the third mounting plate, facilitating the disassembly and maintenance of the pressure detector by the operator and reducing the difficulty of disassembling the device.

[0006] The mounting bracket has a sliding groove on its inner side, and a test plate is arranged between the inner sides of the mounting bracket. The sliding groove is slidably connected to one end of the test plate. A telescopic cylinder is fixedly connected to the side of the mounting bracket, and the output end of the telescopic cylinder is fixedly connected to the side of the test plate, which facilitates alternating testing and helps improve work efficiency.

[0007] According to the aforementioned wear-resistant mechanical seal testing fixture, two test grooves are formed on the upper surface of the test plate, and mounting grooves are formed on the bottom surface of the two test grooves to facilitate testing of the seal.

[0008] According to the aforementioned wear-resistant mechanical seal testing fixture, two annular grooves are formed on the upper surface of the test plate, and a sealing ring is fixedly connected to the bottom surface of the annular grooves to ensure the seal at the connection when the second mounting plate covers the test grooves.

[0009] According to the aforementioned wear-resistant mechanical seal testing fixture, an electric telescopic rod is fixedly connected inside the mounting frame, and the output end of the electric telescopic rod is fixedly connected to a first mounting plate, which facilitates the downward movement of the second mounting plate.

[0010] According to the aforementioned wear-resistant mechanical seal testing fixture, two limiting rods are fixedly connected to the upper surface of the first mounting plate. The two limiting rods are symmetrically arranged, and the first mounting plate can be moved stably by means of the limiting rods.

[0011] According to the aforementioned wear-resistant mechanical seal testing fixture, a second mounting plate is fixedly connected to the lower surface of the first mounting plate, and the lower surface of the second mounting plate is fixedly connected to the upper surface of the test cylinder, which facilitates testing.

[0012] According to the aforementioned wear-resistant mechanical seal testing fixture, an air pump is fixedly connected to the upper surface of the first mounting plate, and the output end of the air pump is connected to the upper surface of the second mounting plate through a pipe to facilitate air inflation.

[0013] According to the aforementioned wear-resistant mechanical seal testing fixture, the sealing ring is disposed outside the test groove to ensure sealing during testing.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] 1. The sliding rod drives the insertion block to move, which facilitates the release of the insertion block's restriction on the third mounting plate. The spring elasticity facilitates the automatic push of the insertion block into the test cylinder, making it convenient for staff to disassemble and maintain the air pressure detector and reducing the difficulty of disassembling the device.

[0016] 2. The test plate is moved by a telescopic cylinder, which facilitates the alternation of the two test slots. The test plate slides smoothly inside the sliding slot, which makes it easy to perform alternating tests and improves work efficiency.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a wear-resistant mechanical seal testing fixture according to the present invention;

[0020] Figure 2 This is a front sectional view of a wear-resistant mechanical seal testing fixture according to the present invention;

[0021] Figure 3 This utility model relates to a testing fixture for wear-resistant mechanical seals. Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This utility model relates to a testing fixture for wear-resistant mechanical seals. Figure 2 Enlarged view of point B in the middle.

[0023] Legend:

[0024] 1. Mounting bracket; 2. Telescopic cylinder; 3. Limiting rod; 4. Electric telescopic rod; 5. Air pump; 6. First mounting plate; 7. Test plate; 8. Test slot; 9. Test cylinder; 10. Second mounting plate; 11. Sealing ring; 12. Insert block; 13. Sliding rod; 14. Spring; 15. Third mounting plate; 16. Air pressure detector; 17. Mounting slot; 18. Sliding slot. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] Reference Figure 1-4 This utility model provides a wear-resistant mechanical seal testing fixture, which includes: a mounting frame 1 and a test cylinder 9. A third mounting plate 15 is fitted inside the test cylinder 9. Two springs 14 are fixedly connected to the inner wall of the third mounting plate 15. The springs 14 are used to push the insert block 12 to move. One end of each of the two springs 14 is fixedly connected to the insert block 12. The insert block 12 is used to limit the third mounting plate 15. The end of the insert block 12 away from the springs 14 is inserted into the test cylinder 9. A sliding rod 13 is fixedly connected to the lower surface of the insert block 12 for sliding the insert block 12. The lower end of the sliding rod 13 extends to the outside of the third mounting plate 15. A pressure detector 16 is detachably connected to the lower surface of the third mounting plate 15 for detecting pressure changes.

[0027] A sliding groove 18 is provided on the inner side of the mounting frame 1 to allow the test plate 7 to move stably. The test plate 7 is arranged between the inner sides of the mounting frame 1. The sliding groove 18 is slidably connected to one end of the test plate 7. A telescopic cylinder 2 is fixedly connected to the side of the mounting frame 1 to drive the test plate 7 to move. The output end of the telescopic cylinder 2 is fixedly connected to the side of the test plate 7.

[0028] Two test slots 8 are formed on the upper surface of the test plate 7, and an installation slot 17 is formed on the bottom surface of the two test slots 8. The staff can install the seal to be tested inside the installation slot 17.

[0029] Two annular grooves are formed on the upper surface of the test plate 7. A sealing ring 11 is fixedly connected to the bottom surface of the annular groove, and the sealing is achieved by the contact between the second mounting plate 10 and the test plate 7 using the sealing ring 11.

[0030] The mounting bracket 1 is internally fixedly connected to an electric telescopic rod 4, and the output end of the electric telescopic rod 4 is fixedly connected to a first mounting plate 6. The electric telescopic rod 4 is used to drive the first mounting plate 6 to move.

[0031] Two limiting rods 3 are fixedly connected to the upper surface of the first mounting plate 6. The two limiting rods 3 are symmetrically arranged, and the first mounting plate 6 is limited by the limiting rods 3.

[0032] The lower surface of the first mounting plate 6 is fixedly connected to the second mounting plate 10, and the lower surface of the second mounting plate 10 is fixedly connected to the upper surface of the test cylinder 9.

[0033] An air pump 5 is fixedly connected to the upper surface of the first mounting plate 6. The output end of the air pump 5 is connected to the upper surface of the second mounting plate 10 through a pipe. The air pump 5 inflates the inside of the test tank 8 through the pipe.

[0034] The sealing ring 11 is located outside the test groove 8.

[0035] Working principle: In use, the operator first places the seal to be tested inside the mounting groove 17. Then, the controller starts the electric telescopic rod 4 to move the first mounting plate 6 and the test cylinder 9 downward, so that the test cylinder 9 is in contact with the seal to be tested. At the same time, the second mounting plate 10 is used to contact the test plate 7 to ensure a seal. Then, the air pump 5 is started to inflate the test groove 8. At the same time, the operator observes the change in air pressure value detected by the air pressure detector 16 on the display screen of the controller, which helps the operator judge the sealing performance of the workpiece. Then, the telescopic cylinder 2 is started to push the test plate 7 to slide inside the sliding groove 18, so that the other test groove 8 is aligned with the test cylinder 9, which facilitates alternating testing and improves work efficiency. When the operator needs to maintain the internal air pressure detector 16, the operator can move the insert block 12 through the slide rod 13 to release the limit of the insert block 12 on the third mounting plate 15. The spring 14 can push the insert block 12 to move and fix it, reducing the maintenance difficulty of the air pressure detector 16.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A testing fixture for wear-resistant mechanical seals, comprising: The mounting bracket (1) and the test tube (9) are characterized in that a third mounting plate (15) is fitted inside the test tube (9), and two springs (14) are fixedly connected to the inner wall of the third mounting plate (15). One end of each of the two springs (14) is fixedly connected to a plug (12). The end of the plug (12) away from the spring (14) is inserted into the test tube (9). A slide rod (13) is fixedly connected to the lower surface of the plug (12). The lower end of the slide rod (13) extends to the outside of the third mounting plate (15). A pressure detector (16) is detachably connected to the lower surface of the third mounting plate (15). The mounting bracket (1) has a sliding groove (18) on its inner side. A test plate (7) is provided between the inner sides of the mounting bracket (1). The sliding groove (18) is slidably connected to one end of the test plate (7). A telescopic cylinder (2) is fixedly connected to the side of the mounting bracket (1). The output end of the telescopic cylinder (2) is fixedly connected to the side of the test plate (7).

2. The wear-resistant mechanical seal testing fixture according to claim 1, characterized in that, Two test slots (8) are formed on the upper surface of the test plate (7), and mounting slots (17) are formed on the bottom surface of the two test slots (8).

3. The wear-resistant mechanical seal testing fixture according to claim 1, characterized in that, Two annular grooves are formed on the upper surface of the test plate (7), and a sealing ring (11) is fixedly connected to the bottom surface of the annular groove.

4. The wear-resistant mechanical seal testing fixture according to claim 1, characterized in that, The mounting bracket (1) is internally connected to an electric telescopic rod (4), and the output end of the electric telescopic rod (4) is fixedly connected to a first mounting plate (6).

5. The wear-resistant mechanical seal testing fixture according to claim 4, characterized in that, Two limiting rods (3) are fixedly connected to the upper surface of the first mounting plate (6), and the two limiting rods (3) are symmetrically arranged.

6. The wear-resistant mechanical seal testing fixture according to claim 4, characterized in that, The lower surface of the first mounting plate (6) is fixedly connected to the second mounting plate (10), and the lower surface of the second mounting plate (10) is fixedly connected to the upper surface of the test cylinder (9).

7. The wear-resistant mechanical seal testing fixture according to claim 4, characterized in that, An air pump (5) is fixedly connected to the upper surface of the first mounting plate (6), and the output end of the air pump (5) is connected to the upper surface of the second mounting plate (10) through a pipe.

8. The wear-resistant mechanical seal testing fixture according to claim 3, characterized in that, The sealing ring (11) is located outside the test groove (8).

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