Shield slag sampling device

Abstract

The present invention relates to the field of detection and analysis technology, and in particular to a shield slag sampling device, comprising a cutterhead, a shield structure and an auxiliary propulsion cylinder, wherein a shield structure is installed on one side of the cutterhead, an auxiliary propulsion cylinder for propelling the cutterhead is installed on one side of the shield structure, and a segment push plate is installed on the other side of the auxiliary propulsion cylinder; a sampling structure is installed on the shield structure, and a connecting arm structure for adjusting the position is installed on one side of the sampling structure, and a displacement structure for adjusting the angle is installed on the other side of the connecting arm structure; in the present invention, by arranging a combination of the connecting arm structure and the displacement structure, the sampling mechanism can be flexibly arranged at different positions and angles, thereby obtaining representative samples in multiple directions and depths, greatly improving the comprehensiveness and scientificity of the samples, facilitating the acquisition of more comprehensive stratigraphic information, and improving the availability of geological data.

Description

Technical Field

[0001] The present invention relates to the technical field of detection and analysis, in particular to a shield slag sampling device. Background Art

[0002] During shield tunneling, real-time and effective sampling and analysis of the excavated soil is crucial. Timely monitoring of key parameters such as soil composition, particle size distribution, and moisture content can accurately guide the adjustment of shield tunneling parameters (such as thrust, torque, grouting pressure, and grouting ratio), effectively preventing engineering risks such as abnormal cutterhead wear, face instability, and excessive surface subsidence. However, existing soil sampling methods have significant limitations: traditional manual sampling requires pausing shield tunneling, severely disrupting construction efficiency and continuity; some mechanical sampling devices have low integration levels, occupy valuable tunnel space, or have a fixed sampling location (usually limited to the screw conveyor outlet), making it difficult to reflect the true state of the soil in front of the cutterhead and at different tunnel sections. Furthermore, the sampling process can easily disturb the soil structure and cause sample contamination, affecting the representativeness and accuracy of the analysis results. Therefore, a shield soil sampling device has been proposed to address these issues. Summary of the Invention

[0003] The purpose of the present invention is to provide a shield slag sampling device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The shield soil sampling device includes a cutterhead, a shield structure, and an auxiliary propulsion cylinder. The shield structure is installed on one side of the cutterhead, the auxiliary propulsion cylinder for propelling the cutterhead is installed on one side of the shield structure, and a segment push plate is installed on the other side of the auxiliary propulsion cylinder.

[0006] The shield structure is equipped with a sampling structure, and a connecting arm structure for adjusting the position is installed on one side of the sampling structure, and a displacement structure for adjusting the angle is installed on the other side of the connecting arm structure.

[0007] Preferably, the number of the auxiliary propulsion cylinders is multiple, and the auxiliary propulsion cylinders are grouped into two and evenly distributed on one side of the shield structure. The number of the segment push plates is half the number of the auxiliary propulsion cylinders, and the segment push plates are evenly distributed on one side of each group of auxiliary propulsion cylinders.

[0008] Preferably, the displacement structure includes a rotating table, a mounting plate for mounting a connecting arm structure is installed on one side of the rotating table, and one side of the mounting plate is connected to the connecting arm structure, a slide groove is opened on the outer side of the rotating table, and a slide rail is installed on the inner side of the slide groove, and the rotating table is connected to the shield structure through the slide rail.

[0009] Preferably, the slide rail is arranged in an annular shape as a whole, and the outer side of the slide rail is fixed to the shield structure. The cross section of the slide rail is arranged in a convex shape, and the protruding side of the slide rail is in contact with the shield structure.

[0010] Preferably, a transmission structure is installed on one side of the turntable, and the transmission structure includes a first motor. A first motor seat for fixing the first motor is installed on one side of the turntable, and the first motor is installed on one side of the first motor seat. A first gear is installed at the end of the main shaft of the first motor, and a gear ring is meshed on the outer side of the first gear, and the outer side of the gear ring is in contact with the shield structure.

[0011] Preferably, the connecting arm structure includes a first telescopic rod and a second telescopic rod, both ends of the first telescopic rod and the second telescopic rod are installed with hinges, one end of the first telescopic rod and the second telescopic rod are both installed on one side of the mounting plate of the displacement structure, the other end of the first telescopic rod is installed with a sampling structure through a hinge, and the other end of the second telescopic rod is installed on one side of the first telescopic rod through a hinge.

[0012] Preferably, the first telescopic rod and the second telescopic rod are arranged vertically, and the length of the first telescopic rod is half of the length of the second telescopic rod. The other end of the second telescopic rod is mounted on the sleeve of the first telescopic rod through a hinge.

[0013] Preferably, the sampling structure includes a sampling cutter head and a second motor, a connecting plate is installed at the top of the second motor, and the connecting plate is connected to the first telescopic rod of the connecting arm structure, a sampling cutter head is installed at the end of the main shaft of the second motor, and a sample storage structure is installed on one side of the sampling cutter head, and a control structure is also installed at the connection between the connecting plate and the first telescopic rod of the connecting arm structure.

[0014] Preferably, the sample storage structure includes a connecting tube, an adsorption box and a protective cover. A protective cover is installed on one side of the sampling blade head. One side of the protective cover is connected to a connecting tube. The connecting tube is L-shaped, and an adsorption box is rotated on the other side of the connecting tube. A detachable storage box is installed on one side of the adsorption box.

[0015] Preferably, the control structure includes a control motor, which is installed on one side of the connecting plate through a second motor seat, a second gear is installed at the end of the main shaft of the control motor, a third gear is engaged on one side of the second gear, and the third gear is installed on the hinge on the side of the first telescopic rod close to the connecting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, by setting a combination of a connecting arm structure and a displacement structure, the sampling mechanism can be flexibly arranged at different positions and angles, thereby obtaining representative samples in multiple directions and depths, greatly improving the comprehensiveness and scientific nature of the samples, facilitating the acquisition of more comprehensive stratigraphic information, and improving the availability of geological data.

[0018] 2. In the present invention, by providing a gear-driven rotating table structure and a first motor drive system, the rotation angle of the sampling mechanism can be accurately adjusted; at the same time, the second motor drives the sampling cutter head to realize intelligent and automatic sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation of the sampling structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A;

[0022] Figure 4 This is an overall schematic diagram of the sampling structure of the present invention.

[0023] In the figure: 1. Cutter head; 2. Shield structure; 3. Auxiliary propulsion cylinder; 4. Segment push plate; 5. Sampling structure; 51. Sampling cutter head; 52. Second motor; 53. Connecting plate; 54. Sample storage structure; 541. Connecting pipe; 542. Adsorption box; 543. Protective cover; 55. Control structure; 551. Control motor; 552. Second motor seat; 553. Second gear; 554. Third gear; 6. Connecting arm structure; 61. First telescopic rod; 62. Second telescopic rod; 63. Hinge; 7. Displacement structure; 71. Turntable; 72. Mounting plate; 73. Slide rail; 74. Transmission structure; 741. First motor; 742. First motor seat; 743. First gear; 744. Gear ring. DETAILED DESCRIPTION

[0024] See also Figure 1-4 , the present invention provides a technical solution:

[0025] The shield slag sampling device includes a cutterhead 1, a shield structure 2 and an auxiliary propulsion cylinder 3. The shield structure 2 is installed on one side of the cutterhead 1, and the auxiliary propulsion cylinder 3 for propelling the cutterhead 1 is installed on one side of the shield structure 2, and a segment push plate 4 is installed on the other side of the auxiliary propulsion cylinder 3; the shield structure 2 is installed with a sampling structure 5, and a connecting arm structure 6 for adjusting the position is installed on one side of the sampling structure 5, and a displacement structure 7 for adjusting the angle is installed on the other side of the connecting arm structure 6. This structure makes the sampling device highly integrated with the shield body, and can achieve accurate slag sampling while propelling the cutterhead, ensuring that the sampling operation is carried out synchronously with the shield operation, improving construction efficiency, and providing timely and effective data support for geological judgment during the excavation process.

[0026] There are multiple auxiliary propulsion cylinders 3, and two auxiliary propulsion cylinders 3 are evenly distributed on one side of the shield structure 2 in a group. The number of pipe segment push plates 4 is half of the number of auxiliary propulsion cylinders 3, and the pipe segment push plates 4 are evenly distributed on one side of each group of auxiliary propulsion cylinders 3. The symmetrical distribution design of the auxiliary propulsion cylinders 3 and the pipe segment push plates 4 improves the force balance and operation stability of the device. At the same time, the gap in the middle can facilitate the stable use of the sampling structure 5; the displacement structure 7 includes a rotating table 71, and a mounting plate 72 for mounting the connecting arm structure 6 is installed on one side of the rotating table 71, and one side of the mounting plate 72 is connected to the connecting arm structure 6. A sliding groove is provided on the outer side of the rotating table 71, and A slide rail 73 is installed on the inner side of the slide groove, and the rotating table 71 is connected to the shield structure 2 through the slide rail 73. This structure gives the sampling device the ability to rotate horizontally, realizing accurate sampling with adjustable angles, while ensuring high-degree-of-freedom layout in the compact shield space, which helps to improve the sampling coverage and on-site adaptability; the slide rail 73 is arranged in an annular shape as a whole, and the outer side of the slide rail 73 is fixed to the shield structure 2. The cross-section of the slide rail 73 is arranged in a convex shape, and the protruding side of the slide rail 73 fits the shield structure 2. The slide rail 73 adopts a ring-shaped and convex structure, which enhances the matching accuracy and bearing strength between the slide rail 73 and the shield, and can effectively withstand the load and friction generated when the rotating table rotates. , improving the stability and durability of the device operation; a transmission structure 74 is installed on one side of the rotating table 71, and the transmission structure 74 includes a first motor 741. A first motor seat 742 for fixing the first motor 741 is installed on one side of the rotating table 71, and the first motor 741 is installed on one side of the first motor seat 742. A first gear 743 is installed at the end of the main shaft of the first motor 741, and a gear ring 744 is engaged with the outer side of the first gear 743. The outer side of the gear ring 744 fits with the shield structure 2. Through the motor drive and the gear meshing structure, efficient and stable rotation control is achieved, the rotation angle adjustment is accurate, the response is fast, and it can adapt to different sampling positions and working conditions, further improving the sampling speed. Sampling efficiency and intelligent operation level; the connecting arm structure 6 includes a first telescopic rod 61 and a second telescopic rod 62, both ends of the first telescopic rod 61 and the second telescopic rod 62 are installed with a hinge 63, one end of the first telescopic rod 61 and the second telescopic rod 62 are installed on one side of the mounting plate 72 of the displacement structure 7, the other end of the first telescopic rod 61 is installed with the sampling structure 5 through the hinge 63, and the other end of the second telescopic rod 62 is installed on one side of the first telescopic rod 61 through the hinge 63. The combination of the telescopic rod and the hinge forms a flexible and adjustable structure, so that the sampling device can achieve precise positioning in the up and down directions, adapt to the sampling needs of soil at different depths and directions, and improve the accuracy and coverage of sampling;The first telescopic rod 61 and the second telescopic rod 62 are arranged in an upper and lower manner, and the length of the first telescopic rod 61 is half of the length of the second telescopic rod 62. The other end of the second telescopic rod 62 is mounted on the sleeve of the first telescopic rod 61 through a hinge 63. The upper and lower layered structure improves the force stability and adjustment flexibility of the sampling device. At the same time, through the ratio of different lengths, a wider range of extension can be achieved in a limited space, thereby improving the adaptability of the operating space. The sampling structure 5 includes a sampling cutter head 51 and a second motor 52. A connecting plate 53 is installed on the top of the second motor 52, and the connecting plate 53 The first telescopic rod 61 of the connecting arm structure 6 is connected to the second motor 52. The end of the main shaft is equipped with a sampling cutter head 51, and a sample storage structure 54 is installed on one side of the sampling cutter head 51. The connection between the connecting plate 53 and the first telescopic rod 61 of the connecting arm structure 6 is also equipped with a control structure 55. The sampling cutter head 51 is driven by the second motor 52 to perform cutting operations, thereby improving the power efficiency of sampling. At the same time, the sampling, sample storage and control are integrated into one, effectively reducing the size of the system, reducing the difficulty of wiring, and realizing integrated and efficient operation. The sample storage structure 54 includes a connecting pipe 541 , adsorption box 542 and protective cover 543, a protective cover 543 is installed on one side of the sampling cutter head 51, and a connecting pipe 541 is connected to one side of the protective cover 543. The connecting pipe 541 is L-shaped, and an adsorption box 542 is rotated on the other side of the connecting pipe 541. A detachable storage box is installed on one side of the adsorption box 542. The adsorption box 542 and the protective cover 543 can effectively prevent the overflow and contamination of the slag sample during the transmission process, ensure the purity and representativeness of the sample, and the detachable storage box is convenient for on-site replacement and sample classification management, thereby improving storage efficiency; control structure 55 includes a control motor 551, which is mounted on one side of the connecting plate 53 via a second motor mount 552. A second gear 553 is mounted on the end of the main shaft of the control motor 551. A third gear 554 engages with one side of the second gear 553. The third gear 554 is mounted on a hinge 63 on the side of the first telescopic rod 61 near the connecting plate 53. This structure allows for precise locking and adjustment of the position of the telescopic rod end, effectively preventing deviation caused by inertia or vibration during sampling, improving operational accuracy and the stability of the sampling system, and facilitating remote precision control.

[0027] Workflow: After the shield tunneling system is running stably, the device first enters the initial preparation stage. Multiple auxiliary propulsion cylinders 3 are distributed in pairs on one side of the shield structure 2 to assist in pushing the cutterhead 1 and maintain its stable propulsion state. At the same time, the outer segment pushers 4 provide support to the segments. The entire sampling structure 5, connecting arm structure 6 and displacement structure 7 are now in a retracted and standby state. When entering the positioning and angle adjustment stage, the first motor 741 in the displacement structure 7 starts working. The motor is fixedly mounted on the first motor base 742, driving the first gear 743 on its main shaft to rotate. The first gear 743 engages with the gear ring 744 provided on the outer side of the rotating platform 71, thereby driving the rotating platform 71 to rotate and position along the annular slide rail 73 provided on its outer ring. The slide rail 73 has a convex cross-section structure and fits the shield structure 2 to ensure the stability and smoothness of the structure during the displacement process. Subsequently, the connecting arm structure 6 is unfolded under the control command. The connecting arm structure 6 includes a first telescopic rod 61 and a second telescopic rod 62. The two are connected to the mounting plate 72 and the sampling structure 5 at multiple points through a hinge 63. The first telescopic rod 61 and the second telescopic rod 62 are arranged vertically, with the former being twice the length of the latter, thereby constructing a spatially stable telescopic arm mechanism to ensure that the sampling cutter head 51 can accurately align with the target area. During the sampling execution phase, the sampling cutter head 51 on its main shaft is driven by the second motor 52 to rotate at high speed and cut into the soil. The cut soil enters the connecting pipe 541 through the protective cover 543 on the side of the sampling cutter head 51. The connecting pipe 541 is an L-shaped structure that guides to the adsorption box 542. The adsorption box 542 is provided with a detachable storage box for temporarily storing and sealing the collected soil samples to prevent the samples from being contaminated or lost during transportation. If the angle needs to be fine-tuned during the sampling process, the control motor 551 in the control structure 55 drives the second gear 553 to rotate and engage with the third gear 554 installed on the end of the first telescopic rod 61 near the mounting plate 72, thereby adjusting the sampling arm's slight angle and further improving the flexibility and accuracy of the sampling operation. When sampling is completed, the second motor 52 stops, the sampling cutter head 51 withdraws from the soil, and the control motor 551 reverses to drive the connecting arm structure 6 to retract. The telescopic rods 61 and 62 are synchronously shortened, and the hinge 63 is linked to reset, and the sampling structure 5 returns to its original collapsed state. At the same time, the first motor 741 drives the rotating table 71 to rotate to the standby position. Finally, the storage box is removed from the adsorption box 542 manually or automatically for sample recovery processing. The adsorption box 542 can be replaced with a new storage box for the next round of sampling.

[0028] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A shield soil sampling device, comprising a cutterhead (1), a shield structure (2) and an auxiliary propulsion cylinder (3), characterized in that: A shield structure (2) is installed on one side of the cutter disc (1), an auxiliary propulsion cylinder (3) for propelling the cutter disc (1) is installed on one side of the shield structure (2), and a segment push plate (4) is installed on the other side of the auxiliary propulsion cylinder (3); The shield structure (2) is equipped with a sampling structure (5), and a connecting arm structure (6) for adjusting the position is installed on one side of the sampling structure (5), and a displacement structure (7) for adjusting the angle is installed on the other side of the connecting arm structure (6); The displacement structure (7) includes a rotating platform (71), a mounting plate (72) for mounting the connecting arm structure (6) is installed on one side of the rotating platform (71), and one side of the mounting plate (72) is connected to the connecting arm structure (6), a sliding groove is provided on the outer side of the rotating platform (71), and a sliding rail (73) is installed on the inner side of the sliding groove, and the rotating platform (71) is connected to the shield structure (2) via the sliding rail (73); The slide rail (73) is arranged in an annular shape as a whole, and the outer side of the slide rail (73) is fixed to the shield structure (2). The cross section of the slide rail (73) is arranged in a convex shape, and the protruding side of the slide rail (73) is in contact with the shield structure (2). A transmission structure (74) is installed on one side of the rotating platform (71), and the transmission structure (74) includes a first motor (741). A first motor seat (742) for fixing the first motor (741) is installed on one side of the rotating platform (71), and the first motor (741) is installed on one side of the first motor seat (742). A first gear (743) is installed at the end of the main shaft of the first motor (741), and a gear ring (744) is meshed with the outer side of the first gear (743), and the outer side of the gear ring (744) is in contact with the shield structure (2).

2. The shield soil sampling device according to claim 1, characterized in that: The number of the auxiliary propulsion cylinders (3) is multiple, and two auxiliary propulsion cylinders (3) form a group and are evenly distributed on one side of the shield structure (2). The number of the segment push plates (4) is half the number of the auxiliary propulsion cylinders (3), and the segment push plates (4) are evenly distributed on one side of each group of auxiliary propulsion cylinders (3).

3. The shield slag sampling device according to claim 1, characterized in that: The connecting arm structure (6) includes a first telescopic rod (61) and a second telescopic rod (62), both ends of the first telescopic rod (61) and the second telescopic rod (62) are installed with hinges (63), one end of the first telescopic rod (61) and the second telescopic rod (62) are both installed on one side of the mounting plate (72) of the displacement structure (7), the other end of the first telescopic rod (61) is installed with a sampling structure (5) through the hinge (63), and the other end of the second telescopic rod (62) is installed on one side of the first telescopic rod (61) through the hinge (63).

4. The shield slag sampling device according to claim 3, characterized in that: The first telescopic rod (61) and the second telescopic rod (62) are arranged vertically, and the length of the first telescopic rod (61) is half the length of the second telescopic rod (62). The other end of the second telescopic rod (62) is mounted on the sleeve of the first telescopic rod (61) via a hinge (63).

5. The shield slag sampling device according to claim 1, characterized in that: The sampling structure (5) comprises a sampling cutter head (51) and a second motor (52). A connecting plate (53) is installed at the top end of the second motor (52), and the connecting plate (53) is connected to the first telescopic rod (61) of the connecting arm structure (6). The sampling cutter head (51) is installed at the end of the main shaft of the second motor (52), and a sample storage structure (54) is installed on one side of the sampling cutter head (51). A control structure (55) is also installed at the connection between the connecting plate (53) and the first telescopic rod (61) of the connecting arm structure (6).

6. The shield slag sampling device according to claim 5, characterized in that: The sample storage structure (54) comprises a connecting tube (541), an adsorption box (542) and a protective cover (543). The protective cover (543) is installed on one side of the sampling blade (51). One side of the protective cover (543) is connected to the connecting tube (541). The connecting tube (541) is arranged in an L-shape, and the adsorption box (542) is rotated on the other side of the connecting tube (541). A detachable storage box is installed on one side of the adsorption box (542).

7. The shield slag sampling device according to claim 5, characterized in that: The control structure (55) includes a control motor (551), which is mounted on one side of the connecting plate (53) via a second motor base (552). A second gear (553) is mounted on the end of the main shaft of the control motor (551), and a third gear (554) is meshed with one side of the second gear (553). The third gear (554) is mounted on a hinge (63) on the side of the first telescopic rod (61) close to the connecting plate (53).

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