Shield tunneling machine single-piston thrust oil cylinder anti-deflection device

Abstract

The utility model relates to an anti-deflection device for a single-piston thrust oil cylinder of a shield tunneling machine, which aims at solving the technical problems that the current installation operation is tedious, time-consuming and labor-consuming, and comprises a tail shield, the single-piston thrust oil cylinder and a supporting shoe, a fixing ring close to the supporting shoe is movably installed on the inner wall of the tail shield, a connecting assembly is installed on the ring face, close to the supporting shoe, of the fixing ring, the connecting assembly is detachably connected with a fixing block, a limiting groove is formed in the front side face of the fixing block, a groove is formed in the upper side face of the fixing block, and the limiting groove is matched with the groove. The device has the advantages of being convenient to install and operate, capable of limiting the positions of a plurality of supporting shoes at the same time, simple in structural matching, convenient to disassemble and assemble, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of shield tunnel engineering, in particular to an anti-deflection device for a single-piston propulsion cylinder of a shield machine. Background Art

[0002] During the shield construction process of tunnel engineering, due to the various divisions of the segments, the arrangements of the thrust cylinders are also varied, including single-cylinder arrangement, double-cylinder arrangement, and single-double-cylinder alternating arrangement.

[0003] In order to prevent deflection, the existing single-piston propulsion cylinder of the shield machine generally adds an anti-deflection device to ensure the stability of the position. In contrast, the patent document with the publication number CN202222490575.9 provides an anti-deflection device for a single-piston propulsion cylinder of a shield machine, in which the support shoe structure cooperates with the guide sleeve and the top support component to ensure the stability of the position, and needs to be fixed on both sides of the support shoe. However, because the support shoe structure is set in multiple groups, it is necessary to install double anti-deflection structures, which makes the installation operation cumbersome, time-consuming and labor-intensive. Therefore, an anti-deflection device that can synchronously fix the positions of multiple support shoes is needed. In view of this, we propose an anti-deflection device for a single-piston propulsion cylinder of a shield machine. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a single-piston propulsion cylinder anti-deflection device for a shield machine to solve the current technical problems of complicated installation operations, time-consuming and labor-intensive.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a shield machine single piston propulsion cylinder anti-deflection device, including a tail shield, a single piston propulsion cylinder and a support shoe, the left and right side surfaces of the support shoe are fixed with fixed blocks, the inner wall of the tail shield is movably equipped with a fixed ring close to the support shoe, the ring surface of the fixed ring close to the support shoe is equipped with a connecting assembly, and the connecting assembly is detachably connected to the fixed block;

[0006] A limiting groove is provided on the front side of the fixing block, and a groove is provided on the upper side of the fixing block;

[0007] The connecting assembly includes a fixed plate, a bottom block is fixed on the side of the fixed plate, a limit plate combined with the limit groove is fixed on the upper side of the bottom block, an elastic plate fitted with the fixed block is fixed on the upper surface of the fixed plate, and a convex block combined with the groove is fixed on the lower side of the elastic plate.

[0008] Preferably, an inclined surface is arranged between the ground surface and the end surface of the side end of the elastic plate, and an angle between the inclined surface and the upper surface of the fixing block is an acute angle.

[0009] Preferably, an arc-shaped groove is formed on the bottom side of the elastic plate close to the fixing plate.

[0010] Preferably, a connecting plate is fixedly provided on the annular surface of the fixing ring, and the connecting plate is detachably connected to the fixing plate.

[0011] Preferably, a threaded rod is fixedly provided on the plate wall where the fixing plate and the connecting plate are in contact, and the threaded rod penetrates the plate wall of the connecting plate, and a nut is installed on the side end of the threaded rod.

[0012] Preferably, a limiting protrusion is fixedly provided on the side surface of the fixing plate, and a limiting hole combined with the limiting protrusion is opened on the plate wall of the connecting plate.

[0013] Preferably, a strip groove is provided on the inner wall of the tail shield, a limit block is fixedly provided on the annular surface where the fixing ring and the tail shield are in contact, and the limit block is movably connected to the strip groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can simultaneously set multiple groups of connection components connected to the fixed block through the setting of the fixing ring, so that the positions of multiple groups of support shoes can be fixed at one time, thereby ensuring that the positions of the support shoes are fixed and avoiding the deflection of the single-piston propulsion cylinder. Such structural coordination can effectively save the time required for installation, reduce the operating steps, save time and effort, and facilitate use.

[0016] 2. In the utility model, the connection assembly can fix its position by inserting the limit plate into the limit groove of the fixed block. The protrusion on the elastic plate combines with the groove on the fixed block to fix the connection position between the two, so that the fixed ring can move synchronously with the support shoe, and there is no limit problem. At the same time, the connection assembly is connected to the fixed ring through the connecting plate, which is convenient for separate disassembly. In this way, when a separate support shoe is damaged, it can be replaced separately, which is convenient for replacement operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the cutaway structure of the connection component part in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the connection assembly in the utility model;

[0021] Figure 5 It is an enlarged schematic diagram of the structure of part A in the utility model;

[0022] Figure 6 It is an enlarged schematic diagram of the structure of part B in the utility model.

[0023] In the figure: 1, tail shield; 101, strip groove; 2, piston propulsion cylinder; 3, support shoe; 4, fixing block; 401, limit groove; 402, groove; 5, fixing ring; 501, limit block; 6, connecting assembly; 601, fixing plate; 602, bottom block; 603, limit plate; 604, elastic plate; 605, protrusion; 606, inclined surface; 607, arc groove; 608, threaded rod; 609, limit protrusion; 7, connecting plate; 701, limit hole; 8, nut. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Embodiment: A shield machine single piston propulsion cylinder anti-deflection device, see Figures 1 to 6 , including a tail shield 1, a single-piston propulsion cylinder 2 and a support shoe 3, a fixing block 4 is fixedly provided on both the left and right side surfaces of the support shoe 3, the fixing block 4 is welded on the support shoe 3, a fixing ring 5 close to the support shoe 3 is movably installed on the inner wall of the tail shield 1, a connecting component 6 is installed on the ring surface of the fixing ring 5 close to the support shoe 3, and the connecting component 6 is detachably connected to the fixing block 4, and multiple groups of connecting components 6 are arranged on the fixing ring 5 so that it can be combined with multiple fixing blocks 4 at the same time, so that multiple groups of support shoes 3 can be limited at one time;

[0026] A limiting groove 401 is provided on the front side of the fixing block 4, and a groove 402 is provided on the upper side of the fixing block 4. The notch of the limiting groove 401 is square, and the notch of the groove 402 is circular.

[0027] The connecting component 6 includes a fixing plate 601, on the side of which a bottom block 602 is fixedly provided, on the upper side of the bottom block 602 a limiting plate 603 combined with the limiting groove 401 is fixedly provided, on the upper surface of the fixing plate 601 an elastic plate 604 fitted with the fixing block 4 is fixedly provided, and on the lower side of the elastic plate 604 a convex block 605 combined with the groove 402 is fixedly provided; the fixing block 4 can be limited by inserting the limiting plate 603 into the limiting groove 401, and the effect of fixed limitation can be achieved; the setting of the elastic plate 604 can be turned upward, and can be automatically restored under the elastic force, so that it is convenient to insert the convex block 605 into the groove 402, so as to limit the position where the connecting component 6 is combined with the fixing block 4, and the side pushed by the convex block 605 is set as an inclined surface, so that after contacting the upper side of the fixing block 4, the extrusion force can make it automatically warp up without affecting the movement, so that the convex block 605 is convenient to automatically insert into the groove 402.

[0028] Specifically, a slope 606 is set between the ground and the end face of the side end of the elastic plate 604, and the angle between the slope 606 and the upper surface of the fixed block 4 is an acute angle; the setting of the slope 606 makes it convenient to lift the side end of the elastic plate 604, so that the protrusion 605 can be separated from the groove 402, which is convenient for disassembly operation.

[0029] Furthermore, an arc-shaped groove 607 is provided on the bottom side of the elastic plate 604 close to the fixed plate 601 ; the arc-shaped groove 607 can reduce the strength of the elastic plate 604 , and the arc-shaped setting can ensure tension, facilitating the recovery of the elastic plate 604 .

[0030] Furthermore, a connecting plate 7 is fixedly provided on the annular surface of the fixing ring 5, and the connecting plate 7 is detachably connected to the fixing plate 601; the connecting assembly 6 can be removed separately through the detachable connection between the connecting plate 7 and the fixing plate 601, so that a separate support shoe 3 can be replaced separately when it is damaged.

[0031] It is worth mentioning that a threaded rod 608 is fixed on the plate wall where the fixing plate 601 and the connecting plate 7 are in contact, and the threaded rod 608 passes through the plate wall of the connecting plate 7, and a nut 8 is installed on the side end of the threaded rod 608; the installation position can be fixed by the connection between the threaded rod 608 and the nut 8, and this connection method is convenient for disassembly operation.

[0032] It is worth noting that a limiting protrusion 609 is fixed on the side of the fixed plate 601, and a limiting hole 701 combined with the limiting protrusion 609 is opened on the wall of the connecting plate 7; through the combination of the limiting protrusion 609 and the limiting hole 701, the fixity of the combined position of the fixed plate 601 and the connecting plate 7 can be improved, and there is no offset.

[0033] It is worth mentioning that a strip groove 101 is opened on the inner wall of the tail shield 1, and a limit block 501 is fixedly provided on the annular surface where the fixing ring 5 and the tail shield 1 are in contact, and the limit block 501 is movably connected to the strip groove 101; the installation position of the fixing ring 5 can be limited by the cooperation between the strip groove 101 and the limit block 501, so that the connecting component 6 can be quickly docked with the fixing block 4.

[0034] Working principle: first, dock the limit block 501 on the fixing ring 5 with the strip groove 101 on the tail shield 1, and then put the fixing ring 5 into the tail shield 1, and the limit plate 603 on the connecting component 6 can be inserted into the limit groove 401 on the fixing block 4 by moving, so that under the limit of the fixing ring 5, multiple groups of connecting components 6 can be connected to the fixing blocks 4 on multiple support shoes 3 at the same time, so as to achieve the effect of synchronous limit, and then the inclined part on the protrusion 605 can be brought into contact with the upper side of the fixing block 4 by thrust, so that the side end of the elastic plate 604 can be squeezed upward, so that the protrusion 605 moves to the upper surface of the fixing block 4 When the protrusion 605 moves to the position of the groove 402, it will fall into the groove 402 under the influence of the squeezing force, so that the position of the limiting plate 603 and the limiting groove 401 can be fixed, so as to complete the limitation of the support shoe 3. Through such structural coordination, the position of the support shoe 3 can be fixed without displacement. At the same time, such a limiting method can reduce the installation operation steps, save time, and improve the convenience of operation. The connecting component 6 is fixed to the fixing ring 5 through the connecting plate 7 and can be disassembled separately. In this way, when a single support shoe 3 is damaged, it can be replaced separately without affecting the replacement operation.

[0035] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A shield machine single piston propulsion cylinder anti-deflection device, comprising a tail shield (1), a single piston propulsion cylinder (2) and a support shoe (3), characterized in that: The left and right side surfaces of the support shoe (3) are fixedly provided with fixing blocks (4); a fixing ring (5) close to the support shoe (3) is movably installed on the inner wall of the tail shield (1); a connecting component (6) is installed on the annular surface of the fixing ring (5) close to the support shoe (3); and the connecting component (6) is detachably connected to the fixing block (4); A limiting groove (401) is provided on the front side of the fixing block (4), and a groove (402) is provided on the upper side of the fixing block (4); The connecting assembly (6) comprises a fixing plate (601), a bottom block (602) is fixedly provided on the side surface of the fixing plate (601), a limiting plate (603) combined with the limiting groove (401) is fixedly provided on the upper side surface of the bottom block (602), an elastic plate (604) in contact with the fixing block (4) is fixedly provided on the upper surface of the fixing plate (601), and a convex block (605) combined with the groove (402) is fixedly provided on the lower side surface of the elastic plate (604).

2. The shield machine single piston propulsion cylinder anti-deflection device according to claim 1, characterized in that: An inclined surface (606) is provided between the ground surface and the end surface of the side end of the elastic plate (604), and the angle between the inclined surface (606) and the upper surface of the fixing block (4) is an acute angle.

3. The shield machine single piston propulsion cylinder anti-deflection device according to claim 1, characterized in that: An arc-shaped groove (607) is provided on the bottom side of the elastic plate (604) close to the fixed plate (601).

4. The shield machine single piston propulsion cylinder anti-deflection device according to claim 1, characterized in that: A connecting plate (7) is fixedly provided on the annular surface of the fixing ring (5), and the connecting plate (7) is detachably connected to the fixing plate (601).

5. The shield machine single piston propulsion cylinder anti-deflection device according to claim 4, characterized in that: A threaded rod (608) is fixedly provided on the plate wall where the fixing plate (601) and the connecting plate (7) are in contact, and the threaded rod (608) passes through the plate wall of the connecting plate (7), and a nut (8) is installed on the side end of the threaded rod (608).

6. The shield machine single piston propulsion cylinder anti-deflection device according to claim 4, characterized in that: A limiting protrusion (609) is also fixedly provided on the side surface of the fixing plate (601), and a limiting hole (701) engaged with the limiting protrusion (609) is provided on the plate wall of the connecting plate (7).

7. The shield machine single piston propulsion cylinder anti-deflection device according to claim 1, characterized in that: The inner wall of the tail shield (1) is provided with a strip groove (101), and a limit block (501) is fixedly provided on the annular surface where the fixing ring (5) and the tail shield (1) are in contact, and the limit block (501) is movably connected to the strip groove (101).

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