CN216665612U - Shield tail grease water scour resistance test device - Google Patents
Shield tail grease water scour resistance test device Download PDFInfo
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- CN216665612U CN216665612U CN202123332434.6U CN202123332434U CN216665612U CN 216665612 U CN216665612 U CN 216665612U CN 202123332434 U CN202123332434 U CN 202123332434U CN 216665612 U CN216665612 U CN 216665612U
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Abstract
The utility model relates to the technical field of inspection devices, in particular to a test device for testing the water scour resistance of shield tail grease of a shield. The utility model provides a shield constructs water scour resistance test device of shield tail grease, test device is including experimental water tank, water pump, delivery pipe, outlet pipe, fan nozzle, flow meter, filler mould, slot frame, the lower part inner wall of experimental water tank is equipped with the slot frame, is equipped with filler mould on the slot frame, and filler mould's top is equipped with fan nozzle, the water pump is established to the top of experimental water tank, fan nozzle passes through the outlet pipe and is connected with the water pump, and the one end of delivery pipe is connected to one side of water pump. Compared with the prior art, the device has the advantages that by simulating the parameter conditions such as the water pressure scouring resistance bearing pressure and the like in shield construction, the inspection data of the device can accurately reflect the parameter conditions of the underground shield construction working condition, the final scouring loss quality can be measured through the graduated scale, the quantitative test result can be obtained, and the difference of the water resistance performance of the grease can be reflected.
Description
Technical Field
The utility model relates to the technical field of inspection devices, in particular to a test device for testing the water scour resistance of shield tail grease of a shield.
Background
The construction of the track and the underground engineering is generally carried out by adopting a shield construction method, and shield tail sealing grease is one of the most important sealing materials. Therefore, the excellent shield tail sealing grease is particularly important in a shield construction method, and the high-efficiency sealing performance and the good lubricating effect of the grease can effectively protect the shield tail, avoid collapse accidents, fully isolate underground water and mud and ensure the smooth operation of shield construction. Moreover, the excellent shield tail sealing oil can also effectively prevent the shield machine from being corroded, and avoid unnecessary abrasion. The product is easy to be washed away by water under the condition of water existence, so that the shield grease loss is more, and the equipment structure is damaged in the past. Therefore, the shield tail sealing grease must have good scouring performance.
At present, the shield tail grease water-resistant scouring test of the shield does not have a unified standard, and a test device with the unified standard does not exist. Most shield tail grease water-resistant scouring equipment in China can only obtain qualitative test result data, and quantitative data which indicates the water-resistant performance of grease cannot be obtained, so that actual working conditions and parameter conditions of underground shield construction cannot be really simulated.
The utility model designs a test device for testing the water scouring resistance of shield tail grease of a shield, which can accurately reflect the parameter conditions of the underground shield construction working condition by simulating the parameter conditions such as the water pressure scouring resistance bearing pressure and the like of the shield construction, the final scouring loss quality can be measured by a graduated scale, a quantitative test result can be obtained, the difference of the water scouring resistance of the grease can be reflected, in addition, a water tank is additionally arranged, a separation net is arranged in the middle of the water tank, water can be recycled, and water resources are saved.
Disclosure of Invention
In order to solve the technical problem, an embodiment of the utility model provides a test device for testing the water scouring resistance of shield tail grease of a shield, which comprises a test water tank, a water pump, a water supply pipe, a water outlet pipe, a fan-shaped nozzle, a flow meter, a packing mold and a slot frame, wherein the slot frame is arranged on the inner wall of the lower part of the test water tank, the packing mold is arranged on the slot frame, the fan-shaped nozzle is arranged above the packing mold, the water pump is arranged above the test water tank and is connected with the water pump through the water outlet pipe, one side of the water pump is connected with one end of the water supply pipe, the other end of the water supply pipe is positioned in the test water tank, the flow meter is arranged on the water outlet pipe, and a water flow regulating switch is arranged on the water pump.
Further, the middle part of the test water tank is provided with a filter screen.
Further, the water pump is connected with the upper end of the test water tank through a water pump frame.
Furthermore, the packing mould is of a T-shaped structure, a packing groove is formed in one end of the packing mould, and an inserting groove is formed in the other end of the packing mould.
Furthermore, a graduated scale is arranged on one side of the packing groove.
Furthermore, the upper end of the slot frame is provided with an insertion block, and the structure of the insertion block is matched with the structure of the slot of the packing mold.
Further, the equivalent orifice aperture of the fan-shaped nozzle is 2.4mm, and the jet flow angle of the fan-shaped nozzle is 50 °.
Further, the water flow supply flow of the water pump is 4L/min, and the water supply pressure of the water pump is 0.1 MPa.
Compared with the prior art, the device has the advantages that parameter conditions such as water pressure scouring resistance bearing pressure and the like in shield construction are simulated, the inspection data of the device can accurately reflect the parameter conditions of the underground shield construction working condition, the final scouring loss quality can be measured through the graduated scale, a quantitative test result can be obtained, the difference of the water resistance performance of grease can be reflected, in addition, the water tank is additionally arranged, the separation net is arranged in the water tank, water can be recycled, and water resources are saved.
Drawings
Fig. 1 is a front view of a test device for testing the water scour resistance of shield tail grease of the shield of the utility model.
FIG. 2 is a side view of the test device for testing the water scour resistance of shield tail grease of the shield tunneling machine.
FIG. 3 is a mounting diagram of a packing mold of the test device for testing the water scour resistance of shield tail grease of the shield of the utility model.
Fig. 4 is a front view of a filling mold of the test device for testing the water scour resistance of the shield tail grease of the shield of the utility model.
Fig. 5 is a top view of a packing mold of the test device for testing the water scour resistance of the shield tail grease of the shield of the utility model.
Fig. 6 is a rear view of a filling mold of the test device for testing the water scour resistance of the shield tail grease of the shield tunneling machine.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model discloses a test device for testing the water scouring resistance of shield tail grease of a shield, which comprises a test water tank 1, a water pump 2, a water supply pipe 3, a water outlet pipe 4, a fan-shaped nozzle 5, a flow meter 6, a packing mold 7 and a slot frame 8, wherein the inner wall of the lower part of the test water tank 1 is provided with the slot frame 8, the packing mold 7 is arranged on the slot frame 8, the fan-shaped nozzle 5 is arranged above the packing mold 7, the water pump 2 is arranged above the test water tank 1, the fan-shaped nozzle 5 is connected with the water pump 2 through the water outlet pipe 4, one side of the water pump 2 is connected with one end of the water supply pipe 3, the other end of the water supply pipe 3 is positioned in the test water tank 1, the flow meter 6 is arranged on the water outlet pipe 4, and the water pump 2 is provided with a water flow regulating switch 9.
Wherein, the middle part of test water tank 1 is equipped with filter screen 10. And the water pump 2 is connected with the upper end of the test water tank 1 through a water pump frame 11. The packing mould 7 is of a T-shaped structure, a packing groove 12 is formed in one end of the packing mould 7, and a slot 13 is formed in the other end of the packing mould 7. A graduated scale 14 is arranged on one side of the stuffing box 12. The upper end of the slot frame 8 is provided with an insertion block 15, and the structure of the insertion block 15 is matched with the structure of the slot 13 of the packing mould 7. The equivalent orifice aperture of the fan-shaped nozzle 5 is 2.4mm, and the jet flow angle of the fan-shaped nozzle 5 is 50 degrees. The water flow supply flow of the water pump 2 is 4L/min, and the water supply pressure of the water pump 2 is 0.1 Mpa.
Example (b): the structure of the utility model is shown in attached figures 1 and 2.
The utility model comprises a test water tank 1, a water pump 2, a water supply pipe 3, a water outlet pipe 4, a fan-shaped nozzle 5, a flow meter 6, a filling mold 7 and a slot frame 8. The inner wall of the lower part of the test water tank 1 is provided with a slot frame 8, the upper end of the slot frame 8 is provided with an insert block 15, and the slot frame 8 is provided with a packing mold 7. The packing mould 7 is of a T-shaped structure, one end of the packing mould 7 is provided with a packing groove 12, and the other end of the packing mould 7 is provided with an inserting groove 13. As shown in fig. 5.
The insert 15 is configured to fit within the slot 13 of the packing mold 7. As shown in fig. 3.
One side of stuffing box 12 is equipped with scale 14, and the specification of size of stuffing box 12 is 40mm x 100mm x 5 mm. As shown in fig. 4.
A fan-shaped nozzle 5 is arranged above the filling die 7, the equivalent orifice aperture of the fan-shaped nozzle 5 is 2.4mm, and the jet flow angle of the fan-shaped nozzle 5 is 50 degrees. The fan-shaped nozzle 5 is connected with the water pump 2 through the water outlet pipe 4, the water pump 2 is connected with the upper end of the test water tank 1 through the water pump frame 11, one side of the water pump 2 is provided with the water supply pipe 3, the test water tank 1 is arranged below the water supply pipe 3, the water outlet pipe 4 is provided with the flow meter 6, and the water pump 2 is provided with the water flow regulating switch 9. The water flow adjusting switch 9 is used for adjusting the supply flow of the water pump 2. The water flow supply flow rate of the water pump 2 is 4L/min, and the water supply pressure of the water pump 2 is 0.1 Mpa.
The middle part of the test water tank 1 is provided with a filter screen 10. The filter screen 10 is used for filtering water in the test water tank 1, so that the water supply pipe 3 is prevented from being blocked, and the water is recycled.
The specific process for testing the scouring resistance is as follows:
firstly, preparing a grease sample to be tested and equipment, wherein the grease sample to be tested is required to be placed in a constant temperature box for at least 3 hours at the temperature of 20 +/-3 ℃ before testing;
then, connecting a water inlet pipe 3 of the testing device with a water source, checking whether a flow meter 6 is normal or not, opening a water supply valve of a water pump 2, and regulating a water flow regulating switch 9 according to the display of the flow meter 6 so as to stably control the water supply flow at 0.14 +/-0.05 m for carrying out the cultivation/Hr;
then, fixing a filling mold 7 on a slot frame 8 right below the fan-shaped nozzle 5, enabling the height difference between the top end of the filling mold 7 and the fan-shaped nozzle 5 to be 6 +/-0.5 cm, adjusting the position of the filling mold 7, and enabling a fan-shaped water flow flushing area to lock the top center of the filling mold 7;
and after debugging is finished, closing a water supply valve of the water pump 2, taking back the filling mold 7, and wiping the filling mold clean.
Then, taking out a sample to be measured, uniformly filling the sample into a filling mold 7 by using a scraper, wherein the volume standard of the filling is 40 x 5 x 100mm, the grease is required to be uniformly coated, no obvious gap is formed, the outer surfaces of the top and the side are smooth, and the excessive grease overflows and is removed by using the scraper;
the filled mold 7 filled with sample grease is then secured back to the cradle 8.
Then, the water supply valve of the water pump 2 was opened while a timer was pressed, and a water flush test was performed for 30 minutes.
And after the testing time is up, closing a water supply valve of the water pump 2, taking out the filling mold 7, measuring the depth of the trace of the grease in the filling groove 12, which is flushed by water flow, through a graduated scale 14 on one side of the filling groove 12, and recording.
Wherein the test results should comply with the following regulations:
1. the scale reading of the measuring tape is used as the test result of the water erosion resistance, and the accuracy is 1 mm.
2. The deepest position of the flush trace is measured.
3. The average of two sample tests is taken as the test result.
The test conditions should comply with the following regulations:
the sample required by the anti-water-washing test is preferably not less than 300 ml;
the anti-scouring test equipment should meet the following regulations: the water source supply flow of the water pump 2 reaches 4L/min, and the water pressure reaches 0.1 Mpa; the equivalent orifice aperture of the fan-shaped nozzle 5 is 2.4mm, and the jet flow angle reaches 50 degrees; the packing channel 12 has dimensions 40mm x 100mm x 5 mm.
Claims (8)
1. The utility model provides a shield constructs water scour resistance test device of shield tail grease which characterized in that: the test device comprises a test water tank (1), a water pump (2), a water supply pipe (3), a water outlet pipe (4), a fan-shaped nozzle (5), a flow meter (6), a packing mold (7) and a slot frame (8), wherein the inner wall of the lower part of the test water tank (1) is provided with the slot frame (8), the packing mold (7) is arranged on the slot frame (8), the fan-shaped nozzle (5) is arranged above the packing mold (7), the water pump (2) is arranged above the test water tank (1), the fan-shaped nozzle (5) is connected with the water pump (2) through the water outlet pipe (4), one end of the water supply pipe (3) is connected to one side of the water pump (2), the other end of the water supply pipe (3) is positioned in the test water tank (1), the flow meter (6) is arranged on the water outlet pipe (4), and a water flow regulating switch (9) is arranged on the water pump (2).
2. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 1, characterized in that: the middle part of the test water tank (1) is provided with a filter screen (10).
3. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 1, which is characterized in that: the water pump (2) is connected with the upper end of the test water tank (1) through a water pump frame (11).
4. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 1, which is characterized in that: the packing mould (7) is of a T-shaped structure, a packing groove (12) is formed in one end of the packing mould (7), and a slot (13) is formed in the other end of the packing mould (7).
5. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 4, characterized in that: and a graduated scale (14) is arranged on one side of the packing groove (12).
6. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 1, which is characterized in that: the upper end of the slot frame (8) is provided with an insertion block (15), and the structure of the insertion block (15) is matched with the structure of the slot (13) of the packing mold (7).
7. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 1, which is characterized in that: the equivalent orifice aperture of the fan-shaped nozzle (5) is 2.4mm, and the jet flow angle of the fan-shaped nozzle (5) is 50 degrees.
8. The test device for testing the water scouring resistance of the shield tail grease of the shield according to claim 1, characterized in that: the water flow supply flow of the water pump (2) is 4L/min, and the water supply pressure of the water pump (2) is 0.1 Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123332434.6U CN216665612U (en) | 2021-12-28 | 2021-12-28 | Shield tail grease water scour resistance test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123332434.6U CN216665612U (en) | 2021-12-28 | 2021-12-28 | Shield tail grease water scour resistance test device |
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| Publication Number | Publication Date |
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| CN216665612U true CN216665612U (en) | 2022-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123332434.6U Active CN216665612U (en) | 2021-12-28 | 2021-12-28 | Shield tail grease water scour resistance test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990492A (en) * | 2023-09-25 | 2023-11-03 | 纳拓润滑技术江苏有限公司 | Method for testing spreading uniformity of shield tail grease and application thereof |
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2021
- 2021-12-28 CN CN202123332434.6U patent/CN216665612U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116990492A (en) * | 2023-09-25 | 2023-11-03 | 纳拓润滑技术江苏有限公司 | Method for testing spreading uniformity of shield tail grease and application thereof |
| CN116990492B (en) * | 2023-09-25 | 2024-01-02 | 纳拓润滑技术江苏有限公司 | Method for testing spreading uniformity of shield tail grease and application thereof |
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