Device for testing water-pressure-resistant sealing performance of shield tail sealing grease of shield tunneling machine
By designing a device for the test of water pressure-resistant sealing of the shield machine tail sealing grease, the push and pulling movement of the bottom plate and the adjustment plate simplifies the test network replacement process, solves the problem of cumbersome operation, improves efficiency and ensures sealing.
Patent Information
- Application Number
- CN202421345350.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During the test of the sealing oil and water pressure resistance of the shield machine tail sealing, the operation is complicated when replacing the test network, which affects efficiency.
A shield-machine shield-tail sealing oil and water pressure-resistant sealing test equipment was designed. By setting up the base plate, the adjustment plate, the test network one and the test network two, the push and pull movement of the bottom plate is used to replace the test network, and the correct position and sealing of the adjustment plate are ensured through the limit plate and the insertion rod mechanism.
The test network replacement process is simplified, the operating steps are reduced, the replacement efficiency is improved, and the correct position of the adjustment plate is ensured through indicator lights and rod mechanisms, avoiding misoperation.
Smart Images
Figure CN222618145U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing test equipment, in particular to a water pressure resistance sealing test equipment for shield tail sealing grease of a shield machine. Background Art
[0002] The shield tail sealing grease usually refers to a special type of lubricating grease used for the tail seal of the shield machine. The shield machine is a professional equipment used for tunnel excavation. The tail seal is responsible for preventing soil and water from entering the machine. Therefore, the water pressure sealing test of the sealing grease is particularly important. When testing, put the sealing grease into the test cylinder, pressurize the inside of the test cylinder, and observe the pressure of the sealing grease flowing out of the test net at the bottom of the test cylinder. After the test of the test net with a larger mesh is completed, the test net needs to be replaced with a test net with a larger mesh for a second test.
[0003] When testing the sealing grease, it is necessary to replace a different test net for testing. When disassembling the test net, it is necessary to open the top of the test cylinder, take out the remaining sealing grease inside, then take out the test net, replace it with a test net with a larger mesh, and then add the sealing grease into the test cylinder and put the cover on the top of the test cylinder back on. When replacing the test net, the replacement operation is cumbersome. Therefore, the present application provides a shield machine shield tail sealing grease water pressure resistance sealing test equipment to meet the needs. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a shield machine tail sealing grease water pressure resistance sealing test device to solve the problem of cumbersome replacement operation when replacing the test net.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0006] A shield tail sealing grease water pressure sealing test device for a shield machine comprises a machine base, a top plate supported by a round rod on the top of the machine base, a test barrel fixedly penetrated on the top of the top plate, a fixing seat fixed on the bottom of the test barrel, a cylinder fixed on the top of the fixing seat near the corner, an output end of the cylinder movably penetrates the fixing seat, a bottom plate fixed on the output end of the cylinder, an adjustment plate arranged between the bottom plate and the bottom of the test barrel, two through holes formed on the top of the adjustment plate, a test net 1 and a test net 2 respectively fixed on the inner walls of the two through holes, and the test net 1 is located directly below the test barrel.
[0007] Preferably, an upper sealing ring is fixed to the bottom of the test cylinder, a lower sealing ring is fixed to the top of the adjustment plate, and the top of the lower sealing ring fits with the bottom of the upper sealing ring.
[0008] Preferably, a limiting plate is fixed on the top of the bottom plate, and two limiting plates are provided in total, and the two limiting plates are symmetrically arranged about the middle of the adjustment plate.
[0009] Preferably, chamfers are provided at the facing corners of the limiting plates.
[0010] Preferably, a shell is fixed on the side of the limit plate, a slide groove is provided inside the shell, a limit ring is slidably connected in the slide groove, an insertion rod is fixed to the inner wall of the limit ring, a spring is sleeved on the surface of the insertion rod, the ends of the spring are respectively fixedly connected to the side of the limit plate and the inner wall of the slide groove, the insertion rod movably passes through the shell and the limit plate, a slot is provided on the side of the adjustment plate, and the insertion rod is movably inserted into the slot at one end close to the test tube.
[0011] Preferably, the end of the insertion rod is arranged as a curved surface, and the shape of the end of the insertion rod is matched with the shape of the groove of the inner wall of the slot.
[0012] Preferably, the end of the insertion rod away from the testing tube is spherical.
[0013] Preferably, a switch is embedded on the inner wall of the slide groove near the limiting ring, a battery is installed in the shell, an indicator light is fixed on the side of the shell, and the battery, switch and indicator light are electrically connected.
[0014] Compared with the prior art, the utility model has at least the following beneficial effects:
[0015] In the above scheme, by setting the bottom plate, the adjustment plate, the test net one and the test net two, when replacing, the bottom plate is moved downward, and the different test nets are replaced by pushing and pulling the adjustment plate. After the replacement is completed, the bottom plate is pulled upward, and the adjustment plate and the test cylinder are sealed by the clamping force of the bottom plate on the adjustment plate. There is no need to open the top cover of the test cylinder, and the operation is more convenient.
[0016] By setting the battery, indicator light, switch, rod and slot, when the adjustment plate is moved to the corresponding position, the rod is inserted into the slot, and the rod drives the limit ring to contact the switch. At this time, the indicator light lights up, indicating that the adjustment plate has been moved to the corresponding position. There is no need for precise measurement, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.
[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;
[0019] Figure 2This is a schematic diagram of the cross-sectional structure of the adjustment plate of the utility model;
[0020] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing seat of the utility model.
[0022] [Reference Signs]
[0023] 1. Machine base; 2. Top plate; 3. Test tube; 4. Fixed seat; 5. Cylinder; 6. Bottom plate; 7. Upper sealing ring; 8. Lower sealing ring; 9. Adjustment plate; 10. Through hole; 11. Test net 1; 12. Test net 2; 13. Limit plate; 14. Shell; 15. Slide groove; 16. Rod; 17. Limit ring; 18. Slot; 19. Spring; 20. Battery; 21. Indicator light; 22. Switch.
[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION
[0025] The following is a detailed description of a shield machine tail seal grease water pressure sealing test device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.
[0026] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).
[0027] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.
[0028] like Figure 1-Figure 4 As shown, an embodiment of the utility model provides a shield tail sealing grease water pressure sealing test device for a shield machine, comprising a machine base 1, a top plate 2 is supported on the top of the machine base 1 by a round rod, a test tube 3 is fixedly passed through the top of the top plate 2, a fixing seat 4 is fixed to the bottom of the test tube 3, a cylinder 5 is fixed at the top of the fixing seat 4 near the corner, the output end of the cylinder 5 movably passes through the fixing seat 4, a bottom plate 6 is fixed to the output end of the cylinder 5, an adjustment plate 9 is arranged between the bottom plate 6 and the bottom of the test tube 3, two through holes 10 are provided on the top of the adjustment plate 9, a test net 11 and a test net 2 12 are respectively fixed to the inner walls of the two through holes 10, the adjustment plate 9 is used to adjust the positions of the test net 11 and the test net 2 12, the test net 11 is located directly below the test tube 3, and the cylinder 5 is passed through a pipeline Connected to the air pump, a handle is fixed on the side of the adjustment plate 9 for pushing and pulling the adjustment plate 9. The mesh density of the test net 11 is greater than the mesh density of the test net 2 12. The adjustment plate 9 is only placed on the top of the bottom plate 6. When the bottom plate 6 is not moving upward, the bottom plate 6 does not squeeze the adjustment plate 9. There is a gap between the adjustment plate 9 and the test cylinder 3. The adjustment plate 9 can slide on the top of the bottom plate 6 and under the sealing ring 7 on the bottom of the test cylinder 3. When the bottom plate 6 moves upward, the bottom plate 6 drives the adjustment plate 9 and the lower sealing ring 8 to move upward, so that the lower sealing ring 8 fits against the bottom of the upper sealing ring 7. Through the squeezing force of the bottom plate 6 on the adjustment plate 9, the lower sealing ring 8 at the top of the adjustment plate 9 is tightly fitted with the lower sealing ring 8 at the bottom of the fixing seat 4, which is equivalent to fixing the adjustment plate 9.
[0029] like Figure 4 As shown, in this embodiment, an upper sealing ring 7 is fixed to the bottom of the test tube 3, and a lower sealing ring 8 is fixed to the top of the adjustment plate 9. The top of the lower sealing ring 8 fits with the bottom of the upper sealing ring 7. The fit between the lower sealing ring 8 and the upper sealing ring 7 improves the sealing of the contact surface and avoids errors in the test.
[0030] like Figure 2 As shown, in this embodiment, a limiting plate 13 is fixed on the top of the bottom plate 6, and there are two limiting plates 13 in total, and the two limiting plates 13 are symmetrically arranged about the middle of the adjustment plate 9. The two limiting plates 13 position the adjustment plate 9 so that the position of the adjustment plate 9 will not deviate after insertion, and the adjustment is more convenient.
[0031] like Figure 2 As shown, in this embodiment, chamfers are provided at the opposing corners of the limiting plates 13 . When the adjustment plate 9 is inserted between the limiting plates 13 , the chamfers can be provided to guide the adjustment plate 9 , thereby facilitating the insertion of the adjustment plate 9 between the limiting plates 13 .
[0032] like Figure 3 As shown, in this embodiment, a shell 14 is fixed to the side of the limit plate 13, a slide groove 15 is provided inside the shell 14, a limit ring 17 is slidably connected in the slide groove 15, an insertion rod 16 is fixed to the inner wall of the limit ring 17, a spring 19 is sleeved on the surface of the insertion rod 16, and the ends of the spring 19 are respectively fixedly connected to the side of the limit plate 13 and the inner wall of the slide groove 15, the insertion rod 16 movably passes through the shell 14 and the limit plate 13, a slot 18 is provided on the side of the adjustment plate 9, and the end of the insertion rod 16 close to the test tube 3 is movably inserted in the slot 18, and when the insertion rod 16 is inserted into the slot 18, it indicates that the adjustment plate 9 has been moved to the specified position, avoiding deviation of the test network 11 and the test network 2 12 during use.
[0033] like Figure 3 As shown, in this embodiment, the end of the rod 16 is set as a curved surface, and the shape of the end of the rod 16 is adapted to the shape of the groove on the inner wall of the slot 18. After the end of the rod 16 is set as a curved surface, the area between the rod 16 and the contact surface is relatively small, which facilitates the insertion of the rod 16 into the slot 18.
[0034] like Figure 3 As shown, in this embodiment, the end of the insertion rod 16 away from the test tube 3 is spherical, which increases the contact area with the hand and facilitates pulling the insertion rod 16. Anti-slip stripes are provided on the spherical surface to increase the friction between the fingers and prevent the hand from slipping.
[0035] like Figure 3 As shown, in this embodiment, a switch 22 is embedded on the inner wall of the slide groove 15 near the limit ring 17, a battery 20 is installed in the shell 14, and an indicator light 21 is fixed to the side of the shell 14. The battery 20, the switch 22 and the indicator light 21 are electrically connected. When the indicator light 21 lights up, it can be intuitively known that the insertion rod 16 is inserted into the slot 18, and there is no need to test. The operation steps are simpler.
[0036] Working principle: open the top cover of the test tube 3, add sealing grease into the test tube 3, add clean water on the top of the sealing grease, and then fix the cover on the top of the test tube 3 again. After fixing, ventilate the inside of the test tube 3 through the pipeline, pressurize the inside of the test tube 3, until the sealing grease flows out at the test net 11, record the pressure at this time, and then empty the pressure inside the test tube 3;
[0037] Then start the cylinder 5, and drive the bottom plate 6 to move downward through the cylinder 5. After the bottom plate 6 moves downward, the extrusion force of the bottom plate 6 on the adjusting plate 9 disappears. After the adjusting plate 6 loses the extrusion force, the adjusting plate 9 is only placed on the top of the bottom plate 6, and the bottom plate 6 only supports the adjusting plate 9. Pull the adjusting plate 9, and the adjusting plate 9 drives the test net 11 and the test net 2 12 to move. At this time, pull the insertion rod 16 away from the test tube 3, and the insertion rod 16 is away from the slot 18. When the insertion rod 16 moves, the insertion rod 16 drives the limit ring 17 to move, and the limit ring 17 compresses the spring 19. Then, pull the adjustment plate 9 through the handle on the side of the adjustment plate 9 to move the test net 2 12 Move to the bottom of the test tube 3, at this time, the spring 19 drives the limit ring 17 to rebound, and the limit ring 17 drives the insertion rod 16 to move in the direction of the test tube 3, and the insertion rod 16 is inserted into the slot 18. At this time, the limit ring 17 contacts the switch 22. After the switch 22 is started, it is powered by the battery 20, and the indicator light 21 lights up, prompting the test net 2 12 to move to the specified position. At this time, the test net 2 12 is located directly below the test tube 3, and then the cylinder 5 is started. The cylinder 5 drives the bottom plate 6 to move upward. After the bottom plate 6 moves upward, the bottom plate 6 squeezes the adjustment plate 9, and the lower sealing ring 8 on the top of the adjustment plate 9 fits against the bottom of the upper sealing ring 7, so as to seal the contact surface, and then the test can be performed again.
[0038] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.
[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A shield machine tail sealing grease water pressure sealing test device, comprising a machine base (1), a top plate (2) supported by a round rod on the top of the machine base (1), a test tube (3) fixedly passing through the top of the top plate (2), characterized in that: A fixing seat (4) is fixed at the bottom of the test cylinder (3); a cylinder (5) is fixed at the top of the fixing seat (4) near the corner; an output end of the cylinder (5) movably passes through the fixing seat (4); a bottom plate (6) is fixed at the output end of the cylinder (5); an adjustment plate (9) is arranged between the bottom plate (6) and the bottom of the test cylinder (3); two through holes (10) are formed at the top of the adjustment plate (9); a test net 1 (11) and a test net 2 (12) are respectively fixed on the inner walls of the two through holes (10); the adjustment plate (9) is used to adjust the positions of the test net 1 (11) and the test net 2 (12); the test net 1 (11) is located directly below the test cylinder (3).
2. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 1 is characterized in that: An upper sealing ring (7) is fixed to the bottom of the fixing seat (4), and a lower sealing ring (8) is fixed to the top of the adjusting plate (9), and the top of the lower sealing ring (8) is in contact with the bottom of the upper sealing ring (7).
3. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 1 is characterized in that: A limiting plate (13) is fixed on the top of the bottom plate (6), and two limiting plates (13) are provided in total, and the two limiting plates (13) are symmetrically arranged about the middle of the adjustment plate (9).
4. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 3 is characterized in that: The limiting plates (13) are provided with chamfers at the facing corners.
5. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 4 is characterized in that: A shell (14) is fixed to the side of the limit plate (13), a slide groove (15) is provided inside the shell (14), a limit ring (17) is slidably connected inside the slide groove (15), an insertion rod (16) is fixed to the inner wall of the limit ring (17), a spring (19) is sleeved on the surface of the insertion rod (16), the ends of the spring (19) are respectively fixedly connected to the side of the limit plate (13) and the inner wall of the slide groove (15), the insertion rod (16) movably passes through the shell (14) and the limit plate (13), a slot (18) is provided on the side of the adjustment plate (9), and the end of the insertion rod (16) close to the test tube (3) is movably inserted into the slot (18).
6. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 5 is characterized in that: The end of the insertion rod (16) is arranged as a curved surface, and the shape of the end of the insertion rod (16) is adapted to the shape of the groove on the inner wall of the slot (18).
7. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 5 is characterized in that: The end of the insertion rod (16) away from the test tube (3) is spherical.
8. The shield tail sealing grease water pressure resistance sealing test equipment of the shield machine according to claim 5 is characterized in that: A switch (22) is embedded on one side of the inner wall of the slide groove (15) close to the limit ring (17), a battery (20) is installed in the shell (14), an indicator light (21) is fixed to the side of the shell (14), and the battery (20), the switch (22) and the indicator light (21) are electrically connected.