Novel auxiliary steering device of composite TBM (tunnel boring machine)

Abstract

The utility model discloses a novel auxiliary steering device of a combined type TBM (tunnel boring machine), which comprises a base and an anti-stress plate arranged on the base, wherein a jack acting surface is arranged on the anti-stress plate; the anti-stress plate comprises a stress plate body, a connecting column arranged below the stress plate body, and an auxiliary fixing ring which hoops the connecting column and is connected to the base. An arc-shaped adjusting groove is formed in the base, a plurality of anti-stress plate fixing point positions are arranged in the arc-shaped adjusting groove, each fixing point position is a groove formed in the arc-shaped adjusting groove in a concave mode, and the size of each groove is matched with the size of the connecting column. According to the utility model, the reverse stress plate of which the position can be changed continuously is matched with the hydraulic jack to work, so that the underground steering operation of the shield tunneling machine is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tunnel construction, specifically relates to a compound TBM novel auxiliary steering device. BACKGROUND

[0002] Tunnel Boring Machine (TBM) is also called shield machine, which is a professional equipment for tunneling, and has the characteristics of high automation and intelligence.

[0003] The shield machine has a complex structure, and in the prior art, the shield machine is composed of many different functional components, needs to be sequentially lowered into the well and assembled in the well, which is an important process of subway shield construction. However, the components of the shield machine may not necessarily reach the starting position of the shield when lowered into the well.

[0004] Therefore, it is necessary to perform steering and other operations after the shield machine is lowered into the well, so that the shield machine is in the preset starting position. However, in the prior art, hoisting machinery or hoisting vehicles are generally used to assist the shield machine in steering.

[0005] However, due to the narrow space in the tunnel underground, there may not be enough space to deploy the hoisting machinery. At the same time, the shield machine itself is heavy, and manual steering cannot be used, so in this case, hydraulic jacks and the like are needed to cooperate to steer the shield machine. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a compound TBM novel auxiliary steering device, which can change the position of the counterforce plate to cooperate with the hydraulic jack to work, and is more convenient for steering the shield machine in the well.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme as follows:

[0008] A compound TBM novel auxiliary steering device, comprising a base, a counterforce plate arranged on the base, and a jack acting surface arranged on the counterforce plate; the counterforce plate comprises a force plate body, a connecting column arranged below the force plate body, an auxiliary fixing ring connected to the connecting column and fixed to the base by a clamp; the base is provided with an arc-shaped adjusting groove, and a plurality of counterforce plate fixing points are arranged in the arc-shaped adjusting groove, each fixing point is a groove arranged along the arc-shaped adjusting groove, and the size of each groove is matched with the size of the connecting column.

[0009] Further, the auxiliary fixing ring comprises at least two symmetrically arranged clamp rings, and at least two supporting ribs are connected to each clamp ring.

[0010] Further, each of the hoop rings is provided with an arc-shaped fixing plate, and the support ribs are fixed to both sides of the arc-shaped fixing plates.

[0011] Further, the arc-shaped fixing plates are provided with hoop butt joints.

[0012] Further, the base is provided with a plurality of positioning insertion holes for fixing the support ribs.

[0013] Further, the tail ends of the support ribs are provided with positioning rings matched with the positioning insertion holes, and positioning pins are inserted into each of the positioning rings and pass through the positioning insertion holes of the base.

[0014] Compared with the prior art, the utility model has the advantages that the utility model is simple in appearance, symmetrical and compact in structure, convenient to install, and small in requirement for installation space. When the shield machine is adjusted in steering, the direction of the stress plate body of the counterforce can be adjusted according to the continuous change of the angle and position, the structure adjustment is more flexible, and the direction adjustment is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical schemes of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0016] Fig. 1 is a structural schematic view of the base of the composite TBM new auxiliary steering device provided by the utility model.

[0017] Fig. 2 is a structural schematic view of the counterforce plate of the composite TBM new auxiliary steering device provided by the utility model.

[0018] Reference signs:

[0019] 1, base; 2, arc-shaped adjusting groove; 3, groove; 4, positioning insertion hole; 5, connecting column; 6, support rib; 7, hoop ring; 8, counterforce plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] It should be noted that: similar labels and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0022] In the description of the utility model, it needs to be explained that, if the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship commonly placed when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, structure and operation, therefore, it cannot be understood as a limitation on the utility model.

[0023] In addition, if the terms "first", "second", "third" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, if the terms "horizontal", "vertical", "overhanging" and the like appear, they do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, if the terms "setting", "mounting", "connecting", "connection" and the like appear, they should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] It needs to be explained that, in the case of no conflict, the features in the embodiments of the utility model can be combined with each other.

[0027] For example, Figure 1As shown, a new auxiliary steering device of a composite TBM comprises a base 1, a counter-force plate 8 arranged on the base 1, and a jack acting surface arranged on the counter-force plate 8; the counter-force plate 8 comprises a force plate body, a connecting column 5 arranged below the force plate body, and an auxiliary fixing ring connected to the base 1 through the hoop connecting column 5; the base 1 is provided with an arc-shaped adjusting groove 2, and a plurality of counter-force plate 8 fixing points are arranged in the arc-shaped adjusting groove 2; each fixing point is a groove 3 arranged in a concave manner along the arc-shaped adjusting groove 2, and the size of each groove 3 is adapted to the size of the connecting column 5.

[0028] Compared with the prior art, in the prior art, the counter-force plate 8 is mainly welded at a fixed position, and then the counter-force plate 8 and the TBM base 1 are connected through a jack, so that the TBM is steered through the action of the jack. However, due to the limitation of the fixed position, the counter-force plate 8 can only be re-welded each time the steering is changed to meet the changed force angle. In this mode, on the one hand, it wastes manpower and material resources and requires a large amount of manual operation to repeatedly weld, and on the other hand, the repeated welding / removing of the counter-force plate 8 leads to low work efficiency. In the present application, after the base 1 is fixed to a predetermined position, the specific position of the adjustable counter-force plate 8 is adjusted to adapt to steering at different angles, thereby reducing the welding process and improving work efficiency.

[0029] The auxiliary fixing ring comprises at least two symmetrically arranged hoop rings 7, and at least two supporting ribs 6 are connected to each hoop ring 7. Each hoop ring 7 is provided with an arc-shaped fixing piece, and the supporting ribs 6 are fixed to both sides of the arc-shaped fixing piece. The arc-shaped fixing piece is provided with a hoop butt joint hole. The counter-force plate 8 is fixed through the hoop ring 7, and the base 1 is provided with a plurality of positioning insertion holes 4 for fixing the supporting ribs 6. By adjusting the counter-force plate 8 in different grooves 3 of the arc-shaped adjusting groove 2 and fixing the supporting ribs 6 to different positions, the force direction of the counter-force plate 8 is adjusted, so that it can be applied to steering at different angles.

[0030] The tail end of the supporting rib 6 is provided with a positioning ring matched with the positioning insertion hole 4, and a positioning pin is inserted into each positioning ring and penetrates into the positioning insertion hole 4 of the base 1.

[0031] In specific use, the TBM is first successively lowered from the shaft and then assembled in the first step in the tunnel. After assembly is completed, the TBM needs to be transported to the starting position, which may not be on the same straight line as the shaft position. Therefore, the TBM will encounter steering problems in this process, and the TBM will need to be steered again in place due to the limited space in the tunnel.

[0032] When the steering operation is performed, first, the position of the counterforce plate 8 is set according to the position of the shield machine, specifically, the base 1 needs to be fixed to the appropriate position, then the hydraulic jack is arranged on the base 1 of the shield machine, and the output shaft of the hydraulic jack is connected to the counterforce plate 8, and the output of the hydraulic jack is used to realize the steering of the shield machine.

[0033] After rotating a certain amplitude, the base 1 of the shield machine is offset in a certain direction relative to the initial position, at this time, the counterforce plate 8 cannot be well connected to the hydraulic jack, and the facing of the counterforce plate 8 needs to be changed. According to the specific needs, the installation slot of the counterforce plate 8 can be adjusted, and the direction is adjusted, and then the counterforce plate 8 is fixed again. In this process, mainly using bolts and other detachable parts to change, without adjusting and disassembling the welded base 1, effectively saving the labor cost, improving the work efficiency.

[0034] The above-described and the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A new type of auxiliary steering device for composite TBM, characterized in that: The utility model relates to a jack-up platform, including base (1), set up on base (1) counterforce plate (8), counterforce plate (8) is provided with jack acting surface, counterforce plate (8) includes force plate body, the connecting column (5) of setting in force plate body below, the auxiliary fixed ring of hoop connecting column (5) and connecting to base (1), base (1) is provided with arc adjusting groove (2), and be provided with multiple counterforce plate (8) fixed point position in arc adjusting groove (2), and every fixed point position is the recess (3) of being set in along the concave of arc adjusting groove (2), and the size of every recess (3) with the size of connecting column (5) adaptation.

2. The combined TBM new auxiliary steering device according to claim 1, characterized in that: The auxiliary fixed ring includes at least two symmetrically arranged hoop rings (7), and at least two supporting ribs (6) are connected to each hoop ring (7).

3. The combined TBM new auxiliary steering device according to claim 2, characterized in that: Each of the hoop rings (7) is provided with an arc-shaped fixing plate, and the supporting ribs (6) are fixed to both sides of the arc-shaped fixing plate.

4. The combined TBM new auxiliary steering device according to claim 3, characterized in that: The arc-shaped fixing plate is provided with a hoop butt joint hole.

5. The combined TBM new auxiliary steering device according to claim 1, wherein: The base (1) is provided with a plurality of positioning insertion holes (4) for fixing the supporting ribs (6).

6. The combined TBM new auxiliary steering device according to claim 2, wherein: The tail end of the supporting rib (6) is provided with a positioning ring matched with the positioning insertion hole (4), and a positioning pin is inserted into each positioning ring, and the positioning pin penetrates into the positioning insertion hole (4) of the base (1).

Images