Shield body structure of oversized shield

Abstract

The utility model discloses a shield body structure of a super-large shield, which belongs to the technical field of shield tunneling machines and comprises a shield sheet, and an oil cylinder mounting seat is fixedly arranged on the shield sheet. Inserting blocks are fixedly arranged on the shield pieces, inserting grooves are fixedly formed in the sides, away from the inserting blocks, of the shield pieces, and the multiple shield pieces are connected end to end to form a ring shape after the inserting blocks are arranged in the inserting grooves in an inserting mode; a first through hole is formed in the inserting block, a second through hole is formed in the inserting groove, and the adjacent first through hole and second through hole are communicated; a limiting rod is placed in the first through hole, a limiting block is fixedly arranged at one end of the limiting rod, and a limiting device is arranged on the side, away from the limiting block, of the limiting rod. A supporting block is fixedly arranged on the shield body, a main installation base split body is fixedly arranged on the supporting block, and a receding groove is formed in the main installation base split body.

Description

Technical Field

[0001] The utility model relates to the technical field of shield machines, in particular to a shield body structure of a super-large shield machine. Background Art

[0002] The shield machine is a kind of engineering machinery for excavation underground, which is widely used in the construction of infrastructure such as subways, highways, and railways. Its working principle is to use the cutting tool of the shield machine to dig underground, and at the same time, the outer shell of the shield machine will follow the cutting tool to support and protect it, forming a tunnel. The shield machine has the advantages of high degree of automation, fast construction speed, and stable tunnel quality, so it has been widely used in modern urban construction. With the increase in transportation demand, the size of the shield machine has also increased, and large shield machines also play the role of excavating tunnels in many scenarios.

[0003] However, as the size of large shield machines increases, the use of existing structures will increase the difficulty in transporting and installing large shield machines, resulting in the inconvenience of shield machine installation.

[0004] Based on this, the utility model designs a shield structure of a super-large shield to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a shield structure of a super-large shield machine to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it comprises a shield sheet, on which a cylinder mounting seat is fixedly provided, and a plurality of cylinder mounting seats are provided; a plug-in block is fixedly provided on the shield sheet, and a plug-in slot is fixedly provided on the side of the shield sheet away from the plug-in block, and the plurality of shield sheets are connected head to tail to form a ring shape by plugging the plug-in block in the plug-in slot; a first through hole is provided on the plug-in block, and a second through hole is provided on the plug-in slot, and the adjacent first through hole and second through hole are connected; a limiting rod is placed in the first through hole, a limiting block is fixedly provided on one end of the limiting rod, and a limiting device is provided on the side of the limiting rod away from the limiting block; a supporting block is fixedly provided on the shield body, a main mounting seat split is fixedly provided on the supporting block, and a clearance slot is provided on the main mounting seat split; a retaining mechanism is clamped in the plurality of clearance slots; an anti-intrusion plate is fixedly provided on the supporting block.

[0007] By adopting the above technical solution, the shield body of the large shield machine is divided axially along the direction of movement, so that the large shield machine can be disassembled into small parts for transportation during transportation. During installation, the matching of the plug-in blocks and the plug-in slots and the fixing effect of the limit rods make the installation of each shield body firm, and the setting of the holding mechanism makes the assembled main mounting seat stable to support the cutter disc.

[0008] Preferably, the limiting device comprises a limiting pin, a limiting hole is provided on a side of the limiting rod away from the limiting block, the limiting pin is inserted in the limiting hole, and a shaft end clamping ring is clamped on the limiting pin.

[0009] By adopting the above technical solution, the setting of the limiting pin allows the support rod to be limited in the first through hole and the second through hole, thereby preventing it from falling and causing potential danger.

[0010] Preferably, a first yielding platform is formed on the first through hole, and a second yielding platform is formed on the second through hole.

[0011] By adopting the above technical solution, the limit platform can be placed in the first yielding platform, and the limit device can be placed in the second yielding platform, so as to avoid accidentally damaging them during operation and affecting the operation of the large shield machine.

[0012] Preferably, a support rod is fixedly provided on the shield, and the other end of the support rod is fixedly provided on the main mounting seat split.

[0013] By adopting the above technical solution, the support rod can support the main mounting seat split when the large shield machine is in use, thereby achieving a supporting effect on the cutterhead.

[0014] Preferably, the limiting rod is arc-shaped.

[0015] By adopting the above technical solution, the arc-shaped limiting rod can have better anti-slip performance.

[0016] Preferably, the retaining mechanism includes a clamping block, mounting platforms are fixedly provided at both ends of the clamping block, a clearance hole is opened on the mounting platform, two clamping blocks are provided, the clearance holes on the two clamping blocks correspond to each other, and fastening devices are provided on the clearance holes, and the fastening devices are pressed against the mounting platforms of the two clamping blocks.

[0017] By adopting the above technical solution, the installation method of the mechanism can be kept simple and convenient, and the function of limiting the split of the main mounting seat can be achieved.

[0018] In summary, the present application has the following beneficial technical effects: by dividing the shield body of a large shield machine along the axial direction of the movement direction of the large shield machine, the large shield machine as a whole can be disassembled into small parts for transportation during transportation; during installation, the installation of each shield body is made firm through the pairing of the plug-in block and the plug-in slot and the fixing action of the limit rod; a plurality of shield plates are combined into a shield body, and a main mounting seat composed of a plurality of main mounting seats is stabilized by the setting of a retaining mechanism so as to support the cutter disc, so that the shield body as a whole has the advantage of convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of shield installation in this embodiment;

[0021] Figure 2 This is a schematic diagram of the installation of the oil cylinder mounting base in this embodiment;

[0022] Figure 3 This is a schematic diagram of the installation of the holding mechanism of this embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of the first yielding platform in this embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of the second yielding platform in this embodiment;

[0025] Figure 6 Schematic diagram of the structure of the limiting device of this embodiment.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Shield; 2. Cylinder mounting seat; 3. Plug-in block; 4. Plug-in slot; 5. First through hole; 6. Second through hole; 7. First give-way platform; 8. Second give-way platform; 9. Limit rod; 10. Limit block; 11. Limit device; 12. Limit pin; 13. Shaft end clamp ring; 14. Support block; 15. Anti-intrusion plate; 16. Main mounting seat split; 17. Give-way slot; 18. Support rod; 19. Holding mechanism; 20. Clamp block; 21. Mounting platform; 22. Fastening device. DETAILED DESCRIPTION

[0028] 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.

[0029] The following is combined with Figure 1 —6 Provide further details of this application.

[0030] A shield structure of a super-large shield comprises a shield piece 1, on which a cylinder mounting seat 2 is fixedly arranged, and three cylinder mounting seats 2 are arranged.

[0031] A plug-in block 3 is fixedly provided on the shield 1, and a plug-in slot 4 is fixedly provided on one side of the shield 1 away from the plug-in block 3. A plurality of shields 1 are connected head to tail to form a ring shape by plugging the plug-in block 3 in the plug-in slot 4.

[0032] The plug-in block 3 is provided with a first through hole 5, the plug-in slot 4 is provided with a second through hole 6, the first through hole 5 is provided with a first clearance platform 7, and the second through hole 6 is provided with a second clearance platform 8; the adjacent first through holes 5 and second through holes 6 are connected.

[0033] A limiting rod 9 is placed in the first through hole 5, and the limiting rod 9 is in an arc shape; a limiting block 10 is fixedly provided at one end of the limiting rod 9, and a limiting device 11 is provided on the side of the limiting rod 9 away from the limiting block 10; the limiting device 11 includes a limiting pin 12, and a limiting hole (not shown in the figure) is provided on the side of the limiting rod 9 away from the limiting block 10, the limiting pin 12 is inserted into the limiting hole, and a shaft end clamping ring 13 is clamped on the limiting pin 12.

[0034] A support block 14 is fixedly provided on the shield body, and an anti-intrusion plate 15 is fixedly provided on the support block 14; a main mounting seat split 16 is fixedly provided on the support block 14, and a clearance groove 17 is provided on the main mounting seat split 16; a support rod 18 is fixedly provided on the shield sheet 1, and the other end of the support rod 18 is fixedly provided on the main mounting seat split 16; and a retaining mechanism 19 is clamped in a plurality of clearance grooves 17.

[0035] The retaining mechanism 19 includes a clamping block 20, at both ends of which are fixedly provided with mounting platforms 21, on which are provided yield holes (not shown in the figure), and there are two clamping blocks 20, the yield holes on the two clamping blocks 20 correspond to each other, and fastening devices 22 are provided on the yield holes, which are tightly pressed against the mounting platforms 21 of the two clamping blocks 20.

[0036] The implementation principle of this embodiment is as follows: when assembling a large shield machine, first assemble multiple shield pieces 1 through the plug-in slots 4 and the plug-in blocks 3, connect the head and tail to form a ring shape of the large shield machine, then pass the limit rod 9 through the adjacent second through hole 6 from the first through hole 5, and at the same time make the limit block 10 located in the first yielding platform 7; then insert the limit pin 12 into the limit hole, and at the same time clamp the shaft end clamp ring 13 on the limit pin 12, after the installation of multiple limit rods 9 is completed, multiple shield pieces 1 form a ring to form a shield body; then fix the anti-intrusion plate 15 on the support block 14, so that the front end of the shield body forms a soil bin; then place two clamping blocks 20 in the yielding slots 17, and fasten the mounting platforms 21 on the two clamping blocks 20 together through the fastening device 22, so that the two clamping blocks 20 hold the multiple main mounting seat splits 16, that is, the installation of the shield body is completed; then, after the propulsion cylinder and the cutter head and other components are set in the shield body, the large shield machine can be used.

[0037] By dividing the shield body of the large shield machine along the axial direction of the movement direction of the large shield machine, the large shield machine as a whole can be disassembled into small parts for transportation during transportation; during installation, the matching of the plug-in block 3 and the plug-in slot 4 and the fixing effect of the limit rod 9 make the installation of each shield body firm; a plurality of shield plates 1 are combined into a shield body, and a main mounting seat composed of a plurality of main mounting seat splits 16 is stabilized by the setting of a retaining mechanism 19 to support the cutter disc, so that the shield body as a whole has the advantage of convenient installation.

[0038] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shield structure of a super-large shield machine, characterized in that: The invention comprises a shield sheet (1), on which a cylinder mounting seat (2) is fixedly arranged, and a plurality of the cylinder mounting seats (2) are arranged; a plug-in block (3) is fixedly arranged on the shield sheet (1), and a plug-in slot (4) is fixedly arranged on the side of the shield sheet (1) away from the plug-in block (3); the plurality of shield sheets (1) are connected head to tail to form a ring shape by plugging the plug-in block (3) in the plug-in slot (4); a first through hole (5) is provided on the plug-in block (3), and a second through hole (6) is provided on the plug-in slot (4); adjacent first through holes (5) and second through holes (6) are connected head to tail to form a ring shape. 6) through; a limiting rod (9) is placed in the first through hole (5), a limiting block (10) is fixedly arranged at one end of the limiting rod (9), and a limiting device (11) is arranged on the side of the limiting rod (9) away from the limiting block (10); a supporting block (14) is fixedly arranged on the shield body, a main mounting seat split (16) is fixedly arranged on the supporting block (14), and a clearance groove (17) is opened on the main mounting seat split (16); a plurality of retaining mechanisms (19) are clamped in the clearance grooves (17); an anti-intrusion plate (15) is fixedly arranged on the supporting block (14).

2. The shield structure of a super-large shield according to claim 1, characterized in that: The limiting device (11) comprises a limiting pin (12), a limiting hole is provided on a side of the limiting rod (9) away from the limiting block (10), the limiting pin (12) is inserted into the limiting hole, and a shaft end clamping ring (13) is clamped on the limiting pin (12).

3. The shield structure of a super-large shield according to claim 1, characterized in that: A first yielding platform (7) is provided on the first through hole (5), and a second yielding platform (8) is provided on the second through hole (6).

4. The shield structure of a super-large shield according to claim 1, characterized in that: A support rod (18) is fixedly arranged on the shield plate (1), and the other end of the support rod (18) is fixedly arranged on the main mounting seat split body (16).

5. The shield structure of a super-large shield according to claim 1, characterized in that: The limiting rod (9) is in an arc shape.

6. The shield structure of a super-large shield according to claim 1, characterized in that: The retaining mechanism (19) comprises a clamping block (20), and mounting platforms (21) are fixedly provided at both ends of the clamping block (20), and a clearance hole is provided on the mounting platform (21). There are two clamping blocks (20), and the clearance holes on the two clamping blocks (20) correspond to each other. A fastening device (22) is provided on the clearance holes, and the fastening device (22) is tightly pressed against the mounting platforms (21) of the two clamping blocks (20).

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