Anti-fatigue detection device for shield tail brush

Abstract

The utility model belongs to the technical field of shield tail brushes, in particular to an anti-fatigue detection device for a shield tail brush, which comprises a detection mechanism, the detection mechanism comprises a first lantern ring slidably connected to the outer wall of the upper end of a fixing rod, and one side of the first lantern ring is fixedly connected with a first connecting rod. A connecting block is fixedly connected to the side, away from the first lantern ring, of the first connecting rod, a fixing plate is fixedly connected to the outer wall of one side of the connecting block, a connecting column is fixedly connected to one side of the fixing plate, a connecting piece is movably connected to the outer wall of the connecting column, and a fixing column is movably connected to the end, away from the connecting column, of the connecting piece; a disc is fixedly connected to one side of the fixing column, and a motor is connected to the side, away from the fixing column, of the first disc. The anti-fatigue detection device for the shield tail brush solves the problems that an existing anti-fatigue detection device for the shield tail brush can only carry out simple static testing, the complex mechanical environment borne by the shield tail brush in the tunneling process of a shield tunneling machine is difficult to simulate, and deviation exists between the detection result and the actual use condition.

Description

Technical Field

[0001] The utility model belongs to the technical field of shield tail brushes, and in particular relates to an anti-fatigue detection device for a shield tail brush. Background Art

[0002] In tunnel excavation projects, shield machines, as a key equipment, are widely used in the excavation and excavation of underground spaces such as subways, railways, highways and municipal engineering. The shield tail brush of the shield machine is an important component, mainly used to seal the tail of the shield to prevent mud and groundwater from entering the shield machine, thereby ensuring the smooth progress of tunnel excavation. As the shield machine advances, the shield tail brush will experience repeated friction and distortion, and it is easy to cause fatigue damage after long-term use, which in turn affects its sealing performance and service life. Therefore, anti-fatigue testing of the shield tail brush and timely detection and replacement of damaged parts are important links to ensure the normal operation of the shield machine and construction quality.

[0003] Patent document CN220960580U discloses "a comprehensive detection device for the mechanical properties of a shield tail brush", including "a base and a plurality of shock-absorbing pads arranged at the lower end of the base, a workbench is arranged at the upper end of the base, and a driving mechanism is also arranged above the workbench; a plurality of pressure sensors are connected between the base and the workbench, a fixing mechanism corresponding to the shield tail brush is arranged at the upper end of the workbench, a pressure plate fixing plate is slidably arranged above the workbench, a plurality of guide pillars are vertically slidably arranged on the pressure plate fixing plate, buffer springs are sleeved under the corresponding pressure plate fixing plates of the guide pillars, and a top plate is horizontally installed at the upper end of the guide pillars."

[0004] The above-mentioned device fixes the shield tail brush through a fixing mechanism to ensure the stability of the shield tail brush during detection, and can adapt to different types of shield tail brushes, which effectively ensures the technical means of the detection effect of the shield tail brush. However, there are still some shortcomings when using the above-mentioned device. For example, the detection device can usually only perform simple static tests, and it is difficult to simulate the complex mechanical environment that the shield tail brush is subjected to during the excavation of the shield machine, resulting in a deviation between the detection results and the actual use. In addition, the traditional detection device has poor adaptability to shield tail brushes of different specifications, and the fixing method is single, which is easy to cause damage to the shield tail brush body during the test process, affecting the accuracy and reliability of the detection. In order to improve the accuracy and efficiency of the anti-fatigue detection of the shield tail brush, it is particularly important to research and develop an anti-fatigue detection device that can truly simulate the working environment of the shield machine, adapt to shield tail brushes of different specifications, and have buffering and protection functions. To this end, we provide an anti-fatigue detection device for a shield tail brush to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an anti-fatigue detection device for a shield tail brush, which has the advantages of being able to truly simulate the working environment of a shield machine, adapting to shield tail brushes of different specifications, and having buffering and protection functions. It solves the problem that the existing anti-fatigue detection device for a shield tail brush can only perform simple static tests and is difficult to simulate the complex mechanical environment to which the shield tail brush is subjected during the excavation process of the shield machine, resulting in deviations between the detection results and actual usage.

[0006] In order to achieve the above-mentioned purpose of being able to truly simulate the working environment of a shield machine, adapt to shield tail brushes of different specifications, and have buffering and protection functions, the utility model provides the following technical solutions: an anti-fatigue detection device for a shield tail brush, comprising a workbench, a fixing rod is fixedly connected to the outer wall of the upper end of the workbench, and a detection mechanism is movably connected to the outer wall of the fixing rod;

[0007] The detection mechanism includes a first ring slidably connected to the outer wall of the upper end of the fixed rod, a first connecting rod is fixedly connected to one side of the first ring, a connecting block is fixedly connected to the outer wall of one side of the connecting block, a fixing plate is fixedly connected to one side of the fixing plate, a connecting column is fixedly connected to the outer wall of the connecting column, a connecting piece is movably connected to the fixed column at one end of the connecting piece away from the connecting column, a disc is fixedly connected to one side of the fixed column, and a motor is connected to the side of the disc away from the fixed column.

[0008] Furthermore, a spring is movably connected to the bottom end of the outer wall of the fixed rod, a second ring is slidably connected to the middle part of the outer wall of the fixed rod, a second connecting rod is fixedly connected to the outer wall on one side of the second ring, a first pressure plate is fixedly connected to the side of the second connecting rod away from the second ring, and a third connecting rod is fixedly connected to the outer wall on the upper end of the first pressure plate.

[0009] Furthermore, a mounting block is fixedly connected to the outer wall of the upper end of the workbench, a threaded rod is threadedly connected to the outer wall of the upper end of the mounting block, a second pressure plate is movably connected to the bottom end of the threaded rod, and a shield tail brush body is movably connected to the lower end of the second pressure plate.

[0010] Furthermore, the spring, the second ring and the first ring are all slidably connected to the outer wall of the fixing rod, the first ring is arranged at the upper end of the second ring, and the spring is arranged at the lower end of the second ring.

[0011] Furthermore, the connecting block is fixedly connected to the first pressing plate via a third connecting rod, and the lower end of the first pressing plate is correspondingly connected to the shield tail brush body.

[0012] Furthermore, the connecting column and the fixing column are movably connected via a connecting piece, and one side of the connecting piece is close to one side of the outer wall of the first pressing plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the utility model is in use, by rotating the threaded rod, the second pressing plate moves downward and fixes the shield tail brush body, thereby ensuring the stability of the shield tail brush body during the test.

[0015] 2. When the utility model is in use, the motor drives the disc and the fixed column to rotate the eccentric shaft, driving the connecting piece and the connecting block to perform longitudinal reciprocating motion, ensuring continuous and uniform force acting on the shield tail brush body, simulating the repeated movement of the shield tail brush body during shield machine excavation, truly reproducing its working environment, and facilitating the observation of fatigue damage.

[0016] 3. When the utility model is in use, a spring is provided to provide a reaction force to prevent the first pressure plate from applying excessive force to the shield tail brush body, thereby preventing damage and playing a buffering and protective role.

[0017] 4. When the utility model is in use, the design of the threaded rod and the pressing plate makes the fixing and pressing of the shield tail brush body adjustable, so as to adapt to shield tail brush bodies of different sizes and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the appearance structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly of the detection mechanism structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the connection structure of the shield tail brush body of the utility model.

[0023] In the figure: 1, workbench; 2, fixing rod; 3, spring; 4, detection mechanism; 5, second ring; 6, second connecting rod; 7, first pressure plate; 8, third connecting rod; 9, mounting block; 10, threaded rod; 11, second pressure plate; 12, shield tail brush body;

[0024] 41. First ring; 42. First connecting rod; 43. Connecting block; 44. Fixing plate; 45. Connecting column; 46. Connecting piece; 47. Fixing column; 48. Disc; 49. Motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figures 1 to 3 The utility model provides a technical solution: an anti-fatigue detection device for a shield tail brush, comprising a workbench 1, a fixing rod 2 is fixedly connected to the outer wall of the upper end of the workbench 1, and a detection mechanism 4 is movably connected to the outer wall of the fixing rod 2;

[0027] The detection mechanism 4 includes a first ring 41 slidably connected to the outer wall of the upper end of the fixed rod 2, a first connecting rod 42 is fixedly connected to one side of the first ring 41, a connecting block 43 is fixedly connected to the outer wall of one side of the connecting block 43, a connecting plate 44 is fixedly connected to one side of the fixing plate 44, a connecting column 45 is fixedly connected to the outer wall of the connecting column 45, a connecting member 46 is movably connected to the outer wall of the connecting column 45, an end of the connecting member 46 away from the connecting column 45 is movably connected to a fixed column 47, a disc 48 is fixedly connected to one side of the fixed column 47, and a motor 49 is connected to the side of the disc 48 away from the fixed column 47.

[0028] A workbench 1 is provided, and a fixing rod 2 is fixedly connected to the four corner points of the upper outer wall of the workbench 1, and a detection mechanism 4 is slidably connected to the upper end of the outer wall of the fixing rod 2. The detection mechanism 4 includes a motor 49, the bottom end of the motor 49 is fixedly connected to the upper outer wall of the workbench 1, a disc 48 is rotatably connected to one side of the motor 49, and a fixing column 47 is fixedly connected to the outer wall of the other side of the disc 48, and the fixing column 47 is arranged on one side of the disc 48 and close to the center of the circle, so that when the motor 49 is started, the motor 49 can drive the disc 48 to rotate, and drive the fixing column 47 to rotate the eccentric axis, and a connecting piece 46 is movably connected to one side of the fixing column 47, and a limit block is provided on one side of the fixing column 47 to limit the connecting piece 46, and a connecting column is movably connected to the other end of the connecting piece 46 45, a fixing plate 44 is fixedly connected to both sides of the connecting column 45, which can limit the connecting piece 46, and one side of the fixing plate 44 is fixedly connected to the connecting block 43, and a circular array of four first connecting rods 42 is arranged on the outer wall of one side of the connecting block 43, and the other side of the four first connecting rods 42 is fixedly connected to a first ring 41, and the four first rings 41 are respectively slidably connected to the outer wall of the upper end of the fixing rod 2, so when the disc 48 rotates, the connecting piece 46 can be driven to move through the fixing column 47, thereby driving the first connecting rod 42 and the connecting block 43 to slide longitudinally on the outer wall of the fixing rod 2 through the first ring 41.

[0029] like Figures 1 to 4 As shown, a spring 3 is movably connected to the bottom end of the outer wall of the fixing rod 2, a second ring 5 is slidably connected to the middle part of the outer wall of the fixing rod 2, the spring 3, the second ring 5 and the first ring 41 are all slidably connected to the outer wall of the fixing rod 2, the first ring 41 is arranged at the upper end of the second ring 5, the spring 3 is arranged at the lower end of the second ring 5, a second connecting rod 6 is fixedly connected to the outer wall of one side of the second ring 5, a first pressure plate 7 is fixedly connected to the side of the second connecting rod 6 away from the second ring 5, and a third connecting rod is fixedly connected to the outer wall of the upper end of the first pressure plate 7 8. The connecting block 43 is fixedly connected to the first pressing plate 7 through the third connecting rod 8. The lower end of the first pressing plate 7 is correspondingly connected to the shield tail brush body 12. The connecting column 45 and the fixing column 47 are movably connected through the connecting piece 46. One side of the connecting piece 46 is close to the outer wall of the first pressing plate 7. The upper outer wall of the workbench 1 is fixedly connected to the mounting block 9. The upper outer wall of the mounting block 9 is threadedly connected to the threaded rod 10. The bottom end of the threaded rod 10 is movably connected to the second pressing plate 11. The lower end of the second pressing plate 11 is movably connected to the shield tail brush body 12.

[0030] It should be noted that a second ring 5 is slidably connected to the middle of the outer wall of the four fixed rods 2, and a second connecting rod 6 is fixedly connected to the other side of the four second rings 5, and a first pressure plate 7 is fixedly connected to the other side of the second connecting rod 6, and a third connecting rod 8 is fixedly connected to the outer wall of the upper end of the first pressure plate 7, and the upper end of the third connecting rod 8 is fixedly connected to the bottom end of the connecting block 43, so when the connecting block 43 moves downward, it can push the third connecting rod 8 and the first pressure plate 7 to move downward. At this time, the second ring 5 and the second connecting rod 6 can play a role in smooth sliding of the first pressure plate 7, and a shield tail brush body 12 is provided at the lower end of the first pressure plate 7, so the first pressure plate 7 can squeeze the shield tail brush body 12 to perform anti-fatigue detection on it, and during the detection process, the shield tail brush body 12 is subjected to the force generated by the extrusion. , there will be deviation, for this purpose, a second pressure plate 11 is connected to the upper end of one side of the shield tail brush body 12, and a threaded rod 10 is connected to the upper end of the second pressure plate 11 through a bearing, and a mounting block 9 is threadedly connected to the outer wall of one side of the threaded rod 10, and the shield tail brush body 12 can be placed in the middle of the mounting block 9, thereby by rotating the threaded rod 10, the threaded rod 10 will drive the second pressure plate 11 to squeeze downward, and then act on one side of the shield tail brush body 12, thereby fixing it to avoid deviation during detection, resulting in deviation in the result, and at the bottom end of the outer wall of the fixing rod 2, a spring 3 is provided at the lower end of the second ring 5, thereby after squeezing, a reaction force will be exerted on the second ring 5, avoiding the first pressure plate 7 from applying too much force to the shield tail brush body 12, causing it to be damaged, so the spring 3 can play a role of buffering and protection.

[0031] The working principle of the above embodiment is: place the shield tail brush body 12 on the mounting block 9, and then rotate the threaded rod 10, so that the threaded rod 10 pushes the second pressure plate 11 to move downward and acts on one side of the shield tail brush body 12. At this time, the shield tail brush body 12 can be fixed, and the motor 49 can be started. The motor 49 can drive the disc 48 to rotate and drive the fixed column 47 to rotate the eccentric axis. At this time, the fixed column 47 can drive the connecting piece 46, that is, the connecting block 43 connected by the fixing plate 44 and the connecting column 45 on one side to move longitudinally. Because the fixing column 47 rotates the eccentric axis, the connecting piece 46 can drive the connecting block 43 to reciprocate in the longitudinal direction. At this time, the connecting block 43 slides with the outer wall of the fixed rod 2 through the first connecting rod 42 and the first ring 41 provided on one side, so that it can slide smoothly during movement, and the connecting block 43 moves longitudinally. It can drive the third connecting rod 8 and the first pressure plate 7 connected at the bottom to move longitudinally. At this time, the first pressure plate 7 can squeeze the shield tail brush body 12 set at the bottom, so that anti-fatigue detection can be carried out, and the side wall of the first pressure plate 7 is provided with a second ring 5 and a second connecting rod 6. The second ring 5 slides on the outer wall of the fixed rod 2, ensuring that the first pressure plate 7 can slide smoothly and squeeze the shield tail brush body 12, so as to obtain accurate results. A spring 3 is provided at the lower end of the second ring 5. Therefore, after squeezing, a reaction force will be exerted on the second ring 5 to prevent the first pressure plate 7 from applying too much force to the shield tail brush body 12, causing damage to it. Therefore, the spring 3 can play a role of buffering and protection. This device uses reciprocating motion test to simulate the repeated movement of the shield tail brush body 12 in the excavation of the shield machine, observe its fatigue damage, and obtain accurate results.

[0032] Finally, it should be noted that the above are only preferred embodiments of the utility model and are not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anti-fatigue detection device for a shield tail brush, comprising a workbench (1), characterized in that: The upper outer wall of the workbench (1) is fixedly connected to a fixing rod (2), and the outer wall of the fixing rod (2) is movably connected to a detection mechanism (4); The detection mechanism (4) comprises a first ring (41) slidably connected to the outer wall of the upper end of the fixed rod (2); a first connecting rod (42) is fixedly connected to one side of the first ring (41); a connecting block (43) is fixedly connected to the side of the first connecting rod (42) away from the first ring (41); a fixing plate (44) is fixedly connected to the outer wall of one side of the connecting block (43); a connecting column (45) is fixedly connected to one side of the fixing plate (44); a connecting member (46) is movably connected to the outer wall of the connecting column (45); an end of the connecting member (46) away from the connecting column (45) is movably connected to the fixing column (47); a disc (48) is fixedly connected to one side of the fixing column (47); a motor (49) is connected to the side of the disc (48) away from the fixing column (47).

2. The anti-fatigue detection device for a shield tail brush according to claim 1, characterized in that: A spring (3) is movably connected to the bottom end of the outer wall of the fixing rod (2); a second ring (5) is slidably connected to the middle of the outer wall of the fixing rod (2); a second connecting rod (6) is fixedly connected to the outer wall of one side of the second ring (5); a first pressure plate (7) is fixedly connected to the side of the second connecting rod (6) away from the second ring (5); and a third connecting rod (8) is fixedly connected to the outer wall of the upper end of the first pressure plate (7).

3. The anti-fatigue detection device for a shield tail brush according to claim 1, characterized in that: The upper outer wall of the workbench (1) is fixedly connected to a mounting block (9), the upper outer wall of the mounting block (9) is threadedly connected to a threaded rod (10), the lower end of the threaded rod (10) is movably connected to a second pressing plate (11), and the lower end of the second pressing plate (11) is movably connected to a shield tail brush body (12).

4. The anti-fatigue detection device for a shield tail brush according to claim 2, characterized in that: The spring (3), the second ring (5) and the first ring (41) are all slidably connected to the outer wall of the fixed rod (2); the first ring (41) is arranged at the upper end of the second ring (5), and the spring (3) is arranged at the lower end of the second ring (5).

5. The anti-fatigue detection device for a shield tail brush according to claim 3, characterized in that: The connecting block (43) is fixedly connected to the first pressing plate (7) via a third connecting rod (8), and the lower end of the first pressing plate (7) is correspondingly connected to the shield tail brush body (12).

6. The anti-fatigue detection device for a shield tail brush according to claim 2, characterized in that: The connecting column (45) and the fixing column (47) are movably connected via a connecting piece (46), and one side of the connecting piece (46) is close to one side of the outer wall of the first pressing plate (7).

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