Tunnel boring machine with adjustable section

Abstract

The utility model relates to a tunnel boring machine with an adjustable section, and belongs to the technical field of tunnel boring machines. The section-adjustable cutter head comprises a telescopic inner beam and a cutting tool, and the excavation section is adjusted through hydraulic driving; the section-adjustable shield body is provided with an external variable-section shield shell, and the section shape is adjusted through a telescopic oil cylinder. And the central rotary joint is matched with the main drive to drive the cutterhead to rotate and control the cutting direction. The telescopic inner beam is hydraulically driven to stretch out and draw back, the shape of an excavation section is adjusted, the telescopic oil cylinder adjusts the shape of an external variable-section shield shell, conversion of a circular section, a rectangular section or a combined section is achieved, and meanwhile continuous deformation of the shield shell is achieved by synchronously controlling the stretching amount of the telescopic oil cylinder. The heading machine can complete adjustment of various sections in the shutdown state of the tunnel, the requirements of different tunnels are met, and the heading efficiency and flexibility are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel boring machine technical field, especially a cross section adjustable tunnel boring machine. BACKGROUND

[0002] With the development of global tunnel boring technology, intelligent and advanced tunnel boring technology appears, which has high safety and convenience features, so that the tunnel boring equipment is widely used in various projects of underground space construction.

[0003] In the related art, the tunnel boring equipment usually adopts fixed diameter and structure form for tunneling operation.

[0004] However, the above-mentioned tunnel boring method or related boring equipment has certain limitations. Especially in the tunnel with complex geological conditions and frequently changing cross section shape, due to the lack of conditions to replace the whole equipment, the fixed diameter and fixed structure form of the conventional tunnel boring machine are very inconvenient, which limits its application range and flexibility. UTILITY MODEL CONTENTS

[0005] The applicant provides a cross section adjustable tunnel boring machine to overcome the above-mentioned shortcomings in the prior art, so that the adjustment of various cross sections can be completed under the tunnel shutdown state to adapt to the requirements of the tunnel, and the tunnel boring machine is more convenient for escape, disassembly, maintenance and subsequent modification in the tunnel.

[0006] The technical scheme adopted by the utility model is as follows: a cross section adjustable tunnel boring machine, comprising:

[0007] The cross section adjustable cutter head, the cross section adjustable shield body, the center rotary joint and the main drive;

[0008] The cross section adjustable cutter head is arranged at the front end of the cross section adjustable shield body and connected with the center rotary joint; the other end of the center rotary joint is matched with the main drive;

[0009] The cross section adjustable cutter head comprises an outer beam, a telescopic inner beam, a cutting tool and a hydraulic drive device; the telescopic inner beam is nested in the inner part of the outer beam and controlled to be telescopic through the hydraulic drive device; the cutting tool is arranged at the top of the telescopic inner beam, and the telescopic inner beam is arranged on the telescopic inner beam base;

[0010] The cross-section adjustable shield body comprises an outer variable cross-section shield shell, an inner shield shell, a telescopic oil cylinder and detachable partitions; the outer variable cross-section shield shell is connected in blocks by shield body connecting block one and shield body connecting block two, and the cross-section shape thereof is adjusted by the telescopic oil cylinder; the detachable partitions comprise a front end detachable partition and a middle detachable partition, and are fixed in the inner shield body by partition connecting bolts.

[0011] As a further improvement of the above technical solution:

[0012] Preferably, the bottom of the telescopic inner beam is provided with a hydraulic drive device and an electric sensing device, which are used for controlling the extension amount of the telescopic inner beam, so as to adjust the excavation cross-section shape of the cutter head.

[0013] Preferably, the cross-section shape of the outer variable cross-section shield shell can be adjusted to be circular, rectangular or combined type by the telescopic oil cylinder.

[0014] Preferably, the block connection part of the outer variable cross-section shield shell is provided with an elbow connecting bolt, which is used for fixing the shield shell block.

[0015] Preferably, the cross-section adjustable cutter head further comprises a supporting ring and a center cutter, the supporting ring is connected with the outer beam, and the center cutter is arranged at the center position of the cutter head.

[0016] Preferably, the center rotary joint is internally provided with a center pipeline, which is used for conveying hydraulic fluid and electric power.

[0017] Preferably, the telescopic cavity is formed between the inner shield shell and the outer variable cross-section shield shell of the cross-section adjustable shield body, and the telescopic oil cylinder is installed in the telescopic cavity.

[0018] Preferably, the detachable partitions are fixed with the shield body connecting block one and the shield body connecting block two by partition connecting bolts, so as to form a segmented structure in the inner shield body.

[0019] Preferably, the main drive front end is connected with the cross-section adjustable cutter head, the cross-section adjustable cutter head is driven to rotate by a motor or a motor, and the cutting direction of the cross-section adjustable cutter head is controlled.

[0020] Preferably, when the cross-section of the outer variable cross-section shield shell of the cross-section adjustable shield body is adjusted, the telescopic amount of the telescopic oil cylinder is synchronously controlled, so as to realize the continuous deformation of the shield shell.

[0021] The beneficial effects of the cross-section adjustable shield tunneling machine are as follows:

[0022] The cross-section adjustable shield tunneling machine has the advantages of compact structure, flexible adjustment, adjustable cutter head and shield body, adjustable excavation cross-section of the cutter head by the telescopic inner beam and the hydraulic drive device, and flexible conversion of the cross-section shape of the shield body by the telescopic oil cylinder, which includes circular, rectangular or combined type.

[0023] The utility model still includes the following advantages:

[0024] (1) the utility model can adapt to the tunnel excavation demand of complex geological condition, section shape needs frequent change, need not to replace whole set of equipment, has improved the application range and flexibility of the tunneling machine;

[0025] (2) the utility model adjusts simple, can realize the continuous deformation of the shield body shell through the synchronous control telescopic cylinder telescopic amount, convenient operation has improved work efficiency;

[0026] (3) the utility model adopts detachable partition in the shield body, forms segmented structure, is convenient for getting out of trouble, dismantling, overhauls and subsequent reconstruction work. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the overall structure side view of the utility model.

[0028] Figure 2 It is the cross section adjustable cutter head structure view of the utility model.

[0029] Figure 3 It is the cross section adjustable cutter head structure view in another view angle.

[0030] Figure 4 It is the cross section adjustable shield body structure view of the utility model.

[0031] Figure 5 It is the cross section adjustable shield body structure view in another state.

[0032] Figure 6 It is the M part enlarged schematic view in Figure 4

[0033] Figure 7 It is the cross section adjustable shield body variable cross section structure view of the utility model.

[0034] Figure 8 It is the cross section adjustable shield body variable cross section structure view in another state.

[0035] Figure 9 It is the N part enlarged schematic view in Figure 7

[0036] Figure 10 It is the cross section adjustable shield body external variable cross section shield shell connecting mode view of the utility model.

[0037] Wherein: 1, cross section adjustable cutter head;2, cross section adjustable shield body;3, center swivel joint;4, main drive

[0038] ​​101, telescopic inner beam; 102, telescopic inner beam base; 103, center pipe; 104, cutting tool; 105, outer beam; 106, support ring; 107, center tool;

[0039] 201, outer variable cross-section shield; 202, shield connecting block one; 203, telescopic oil cylinder; 204, inner shield; 205, shield connecting block two; 206, front detachable partition; 207, middle detachable partition; 208, elbow connecting bolt; 209, partition connecting bolt. DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0041] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] In the case of using "include", "have", and "contain" described herein, unless an explicit limiting term is used, such as "only", "consisting of", etc., another component can be added. Unless otherwise mentioned, the singular form of the term can include the plural form and cannot be understood as one in number.

[0044] It should be understood that although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element.

[0045] In addition, the drawings are not drawn to scale 1:1, and the relative sizes of the elements are only drawn by example in the drawings, not necessarily according to the true scale.

[0046] As Figures 1-10, shows the structural state schematic diagram of the tunnel boring machine with adjustable cross section in an embodiment of the utility model; for the convenience of description, the drawings only show the structure related to the embodiment of the utility model.

[0047] In the embodiment, a tunnel boring machine with adjustable cross section is provided, comprising:

[0048] The cross section adjustable cutter head 1, the cross section adjustable shield body 2, the center rotary joint 3 and the main drive 4;

[0049] The cross section adjustable cutter head 1 is arranged at the front end of the cross section adjustable shield body 2 and is connected with the center rotary joint 3; the other end of the center rotary joint 3 is matched with the main drive 4;

[0050] The cross section adjustable cutter head 1 comprises an outer beam 105, a telescopic inner beam 101, a cutting tool 104 and a hydraulic drive device; the telescopic inner beam 101 is nested in the inner part of the outer beam 105 and is controlled to be telescopic through the hydraulic drive device; the cutting tool 104 is arranged at the top of the telescopic inner beam 101, and the telescopic inner beam 101 is arranged on a telescopic inner beam base 102;

[0051] The cross section adjustable shield body 2 comprises an outer variable cross section shield 201, an inner shield 204, a telescopic oil cylinder 203 and a detachable partition plate; the outer variable cross section shield 201 is connected in blocks through a shield connecting block one 202 and a shield connecting block two 205 and is adjusted in cross section shape through the telescopic oil cylinder 203; the detachable partition plate comprises a front end detachable partition plate 206 and a middle detachable partition plate 207 and is fixed in the inner part of the shield through a partition plate connecting bolt 209.

[0052] In the embodiment, the bottom of the telescopic inner beam 101 is provided with a hydraulic drive device and an electric sensing device, which are used for controlling the telescopic amount of the telescopic inner beam 101 to adjust the excavation cross section shape of the cutter head.

[0053] In the embodiment, the cross section shape of the outer variable cross section shield 201 can be adjusted to be circular, rectangular or combined through the telescopic oil cylinder 203.

[0054] Specifically, the block connection part of the outer variable cross section shield 201 is provided with an elbow connecting bolt 208, which is used for fixing the shield block.

[0055] In the embodiment, the cross section adjustable cutter head 1 further comprises a supporting ring 106 and a center tool 107; the supporting ring 106 is connected with the outer beam 105, and the center tool 107 is arranged at the center position of the cutter head.

[0056] In the embodiment, the center rotary joint 3 is built-in with a center pipeline 103, which is used for conveying hydraulic fluid and electric power.

[0057] In the embodiment, the telescopic cavity is formed between the inner shield 204 of the cross-section adjustable shield body 2 and the outer variable cross-section shield 201, and the telescopic oil cylinder 203 is installed in the telescopic cavity.

[0058] In the embodiment, the detachable partition plate is fixed by the partition plate connecting bolt 209 and the shield connecting block one 202 and the shield connecting block two 205, forming a segmented structure inside the shield body.

[0059] In the embodiment, the front end of the main drive 4 is connected with the cross-section adjustable cutter head 1, the cross-section adjustable cutter head 1 is driven to rotate by the motor or the motor, and the cutting direction of the cross-section adjustable cutter head 1 is controlled.

[0060] In the embodiment, when the outer variable cross-section shield 201 of the cross-section adjustable shield body 2 is adjusted, the telescopic amount of the telescopic oil cylinder 203 is synchronously controlled to realize the continuous deformation of the shield shell.

[0061] The cross-section adjustable cutter head 1 adjusts the excavation cross-section through the telescopic inner beam 101 and the hydraulic driving device, the cross-section adjustable shield body 2 realizes the flexible conversion of the cross-section shape by the telescopic oil cylinder 203, and the cross-section shape includes a circular shape, a rectangular shape or a combined type.

[0062] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0063] The above-described embodiments only express the implementation of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A cross-section adjustable tunnel boring machine characterized by, The utility model relates to a cross section adjustable cutter head (1), cross section adjustable shield (2), center swivel joint (3) and main drive (4) are included. The cross section adjustable cutter head (1) is arranged at the front end of the cross section adjustable shield (2) and is connected with the center swivel joint (3), and the other end of the center swivel joint (3) is matched with the main drive (4). The cross section adjustable cutter head (1) includes outer beam (105), telescopic inner beam (101), cutting tool (104) and hydraulic drive device, the telescopic inner beam (101) is nested in the outer beam (105), and the telescopic inner beam (101) is controlled telescopic through the hydraulic drive device, the cutting tool (104) is arranged at the top of the telescopic inner beam (101), and the telescopic inner beam (101) is arranged on telescopic inner beam base (102). The cross section adjustable shield (2) includes outer variable cross section shield (201), inner shield (204), telescopic oil cylinder (203) and detachable partition, the outer variable cross section shield (201) is connected in blocks through shield connecting block one (202) and shield connecting block two (205), and the cross section shape of the outer variable cross section shield (201) is adjusted through the telescopic oil cylinder (203), the detachable partition includes front detachable partition (206) and middle detachable partition (207), and is fixed in the shield interior through partition connecting bolt (209). The bottom of the telescopic inner beam (101) is provided with hydraulic drive equipment and electric sensing equipment, which is used for controlling the telescopic amount of the telescopic inner beam (101) to adjust the excavation cross section shape of the cutter head.

2. The cross-section adjustable tunnel boring machine according to claim 1, wherein, The cross section shape of the outer variable cross section shield (201) can be adjusted to be circular, rectangular or combined type through the telescopic oil cylinder (203).

3. The cross section adjustable tunnel boring machine of claim 1, wherein, The block connection of the outer variable cross section shield (201) is provided with elbow connecting bolt (208) for fixing the shield block.

4. The cross section adjustable tunnel boring machine of claim 1, wherein, The cross section adjustable cutter head (1) further includes support ring (106) and center tool (107), the support ring (106) is connected with the outer beam (105), and the center tool (107) is arranged at the center position of the cutter head.

5. The cross section adjustable tunnel boring machine of claim 1, wherein, The center swivel joint (3) is built-in center pipeline (103) for conveying hydraulic fluid and power.

6. The cross section adjustable tunnel boring machine of claim 1, wherein, The inner shield (204) of the cross section adjustable shield (2) and the outer variable cross section shield (201) form telescopic cavity, and the telescopic oil cylinder (203) is installed in the telescopic cavity.

7. The cross section adjustable tunnel boring machine of claim 1, wherein, The detachable partition is fixed with the shield connecting block one (202) and shield connecting block two (205) through partition connecting bolt (209), and forms the sectional structure of the shield interior.

8. The cross section adjustable tunnel boring machine of claim 1, wherein, The front end of the main drive (4) is connected with the cross section adjustable cutter head (1), the cross section adjustable cutter head (1) is driven to rotate through motor or motor, and the cutting direction of the cross section adjustable cutter head (1) is controlled.

9. The cross section adjustable tunnel boring machine of claim 1, wherein, When the outer variable cross section shield (201) of the cross section adjustable shield (2) adjusts the cross section, the telescopic amount of the telescopic oil cylinder (203) is synchronously controlled, and the continuous deformation of the shield shell is realized.

10. The cross section adjustable tunnel boring machine of claim 1, wherein, ​

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