Main drive support structure of shield machine and shield machine

Abstract

The present invention provides a shield machine main drive support structure and a shield machine, wherein the support structure comprises a main drive support and a main bearing assembly, wherein the main bearing assembly is installed on the front side of the main drive support through a stud e; the shield machine main drive support structure comprises a main drive housing, a main drive slideway extension ring and a main drive connecting ring; the main drive housing, the main drive support and the main drive slideway extension ring are sequentially connected from front to back through a stud a, and the main drive housing is located on the outside of the main bearing assembly; the outer cylindrical surface of the main drive housing is used as a sliding surface to connect a shield body I connected to a telescopic translation main drive; the main drive connecting ring is installed on the rear side of the main drive support through a stud c. According to the requirements of the shield machine host, the present invention is simultaneously applied to both fixed and telescopic translation assembly modes without additional processing and modification of the shield machine.

Description

Technical Field

[0001] The invention belongs to the technical field of shield machine main drive assembly and manufacturing, and in particular relates to a shield machine main drive support structure and a shield machine. Background Art

[0002] At present, large-diameter shield machines have been widely used in tunnel excavation for subway construction. Due to the complex and changeable geological conditions in various cities and even in various construction sections, many shield machines often adopt targeted designs when dealing with different geological conditions. The main drive structure used can be divided into two categories, fixed and telescopic translation. The shield machine itself can meet the requirements of recycling through the maintenance and remanufacturing process of the manufacturer, but if the shield machine main drive itself needs to change the assembly method in the new project target design, from fixed to telescopic translation, or from telescopic translation to fixed, the current working method is to do a lot of processing and modification work on the original main drive support, and even some main drive supports will be remade to meet the design requirements of the main drive support of the new assembly method. The maintenance and modification of the main drive support itself has the characteristics of large processing volume and high processing precision. It will occupy a large production cost in the entire shield machine main drive manufacturing process, and it also requires a certain surveying, design and production and manufacturing cycle. Especially in the maintenance and remanufacturing project of shield machines with larger diameters, it has a great impact on the overall economic benefits and construction cycle of the entire shield machine put into the actual operation of the new subway project. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a main drive support structure of a shield machine and a shield machine, which can be applied to both fixed and telescopic translational assembly modes without additional processing and modification of the shield machine main machine according to the requirements of the shield machine main machine.

[0004] The present invention is implemented as follows: a shield machine main drive support structure, including a main drive support and a main bearing assembly, wherein the main bearing assembly is installed on the front side of the main drive support through a stud e; the shield machine main drive support structure includes a main drive housing, a main drive slideway extension ring and a main drive connecting ring;

[0005] The main drive housing, the main drive support and the main drive slide extension ring are connected in sequence from front to back through studs a, and the main drive housing is located on the outside of the main bearing assembly; the outer cylindrical surface of the main drive housing is used as a sliding surface to connect the shield body I connected to the telescopic translation main drive; the main drive connecting ring is installed on the rear side of the main drive support through studs c.

[0006] Furthermore, the main drive housing includes a front housing and a rear housing, and the front housing and the rear housing are connected in sequence through the stud a.

[0007] Furthermore, the outer circumferential surfaces of the front housing, the rear housing, the main drive support and the main drive slideway extension ring have equal diameters and are coaxially arranged.

[0008] Furthermore, the threaded holes on the front housing and the main drive slide extension ring for connecting the stud a are blind holes.

[0009] Furthermore, the main drive slide extension ring is also connected to the main drive support via a stud b, and the stud b is located on the inner side of the stud a.

[0010] The present invention also provides a main drive support structure of a shield machine, comprising a main drive support and a main bearing assembly, wherein the main bearing assembly is installed on the front side of the main drive support through a stud e; the main drive support structure of the shield machine comprises a main drive fixing ring plate; the main drive fixing ring plate is installed on the rear side of the main drive support through a stud d; the outer cylindrical surface of the main bearing assembly is used as a mounting surface for mounting a shield body II, the front side surface of the main drive support is used as a limiting surface for limiting the movement of the shield body II, and the shield body II is fixed through the stud d.

[0011] Furthermore, the main drive fixed ring plate has a first part and a second part, the first part is fixed to the rear side of the main drive support through the stud d and covers the threaded hole on the rear side, and the second part covers the outer circumferential surface of the main drive support.

[0012] The present invention also provides a main drive support structure of a shield machine, comprising a main drive support and a main bearing assembly, wherein the main bearing assembly is mounted on the front side of the main drive support through a stud e; the main drive support structure of the shield machine has a telescopic translation assembly state and a fixed assembly state, and when the main drive support structure of the shield machine is in the telescopic translation assembly state, it comprises a main drive housing, a main drive slideway extension ring and a main drive connecting ring;

[0013] The main drive housing, the main drive support and the main drive slide extension ring are connected in sequence from front to back through studs a, and the main drive housing is located outside the main bearing assembly; the outer cylindrical surface of the main drive housing is used as a sliding surface to connect the shield body I connected to the telescopic translation main drive; the main drive connecting ring is installed on the rear side of the main drive support through studs c;

[0014] When the main drive support structure of the shield machine is in a fixed assembly state, it includes a main drive fixing ring plate; the main drive fixing ring plate is installed on the rear side of the main drive support through the stud d; the outer cylindrical surface of the main bearing assembly is used as a mounting surface for installing the shield body II, and the front side surface of the main drive support is used as a limiting surface to limit the movement of the shield body II, and the shield body II is fixed by the stud d.

[0015] The present invention also provides a shield machine, comprising any one of the above-mentioned main drive support structures of the shield machine.

[0016] The beneficial effects brought by the present invention are:

[0017] 1. The support structure of the present invention can convert the main drive support assembly mode from fixed type to telescopic translation type, eliminating the need to redesign and process the manufacturing process. Only through the assembly process of various parts, the technical difficulty of maintenance and transformation is reduced, the production cost of host remanufacturing is reduced, and the overall shield machine maintenance period is shortened, greatly improving production efficiency.

[0018] 2. In addition to being connected via stud a, the main drive slide extension ring and the main drive support in the present invention are also connected via stud b, which increases the contact pressure of the two mating surfaces when the main drive is in a telescopic translation structure. This is an effective supplement to stud a and increases the reliability of the entire main drive assembly.

[0019] 3. The outer diameter of the main drive support shell in the present invention is consistent with the outer diameter of the main drive support and the main drive slide extension ring. After assembly, it can be used as the outer cylindrical sliding surface of the main drive telescopic and translational assembly form. At the same time, this component is detachable, and after removal, it can meet the needs of converting the main drive into a fixed assembly form; at the same time, the front shell forms a protective cover for the head connection part of the stud a inside the rear shell.

[0020] 4. The main drive fixed ring plate in the present invention, on the one hand, serves as a pad for the longer stud d, and on the other hand, its structure can cover and protect the outer diameter slide surface and the inner threaded holes of the main drive support, ensuring that these structures will not be mechanically damaged during the operation of the main drive as a fixed structure, ensuring that the main drive assembly form of the future project can be smoothly converted from fixed to telescopic translation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural cross-sectional view of the first embodiment of the present invention (telescopic and translational assembly method);

[0022] Figure 2 This is a structural cross-sectional view of the second embodiment of the present invention (fixed assembly method).

[0023] 1. Main drive support; 2. Main drive front housing; 3. Rear housing; 4. Stud a; 5. Main drive slide extension ring; 6. Stud b; 7. Main drive connecting ring; 8. Stud c; 9. Main drive fixing ring plate; 10. Stud d; 11. Main drive housing; 12. Stud e; 13. Threaded hole; 14. Shield body I; 15. Main bearing assembly; 16. Shield body II. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0025] Embodiment 1

[0026] The present invention provides a shield machine main drive support structure, including a main drive support 1 and a main bearing assembly 15, wherein the main bearing assembly 15 is mounted on the front side of the main drive support 1 through a stud e12; the shield machine main drive support structure has a telescopic translation assembly state and a fixed assembly state. Figure 1 As shown, when the main drive support structure of the shield machine is in the telescopic translation assembly structure, the main drive support structure of the shield machine includes a main drive housing 11 , a main drive slideway extension ring 5 and a main drive connecting ring 7 .

[0027] The main drive housing 11, the main drive support 1 and the main drive slide extension ring 5 are connected in sequence from front to back through the studs a4, and the main drive housing 11 is located outside the main bearing assembly 15; the outer cylindrical surface of the main drive housing 11 is used as a sliding surface to connect the shield body I14 connected to the telescopic translation main drive. The main drive connecting ring 7 is installed on the rear side of the main drive support 1 through the studs c8.

[0028] In an optional embodiment, the main drive housing 11 includes a front housing 2 and a rear housing 3, and the front housing 2 and the rear housing 3 are connected in sequence through studs a4.

[0029] In an optional embodiment, the outer circumferential surfaces of the front housing 2, the rear housing 3, the main drive support 1 and the main drive slideway extension ring 5 are all of equal diameter and coaxially arranged. After assembly, these four components can serve as the outer cylindrical sliding surface of the main drive telescopic translation assembly form. At the same time, this component is detachable, and after removal, the main drive can be converted into a fixed assembly form.

[0030] In an optional embodiment, the threaded holes for connecting the stud a4 on the front housing 2 and the main drive slide extension ring 5 are blind holes. The front housing serves as a protective cover for the head connection portion of the stud a inside the rear housing.

[0031] In an optional embodiment, the main drive slideway extension ring 5 is also connected to the main drive support 1 through a stud b6, and the stud b6 is located on the inner side of the stud a4. The threaded hole 13 on the main drive support 1 connected to the stud b6 is a blind hole, and the hole on the main drive slideway extension ring 5 connected to the stud b6 is a through hole. The connection through the stud b increases the contact pressure of the two fitting surfaces when the main drive is in the telescopic translation structure, which is an effective supplement to the stud a and increases the reliability of the entire main drive assembly.

[0032] Based on the same inventive concept, the present invention also provides a shield machine, including a main drive support 1, a main bearing assembly 15 and a shield body 14. The shield body 114 is telescopically and translatorily installed by the main drive support structure of the shield machine in the first embodiment.

[0033] Embodiment 2

[0034] Different from the first embodiment, this embodiment describes another state of the main drive support structure of the shield machine. Figure 2 As shown, when the main drive support structure of the shield machine is in a fixed assembly state, it includes a main drive fixed ring plate 9. The main drive fixed ring plate 9 is installed on the rear side of the main drive support 1 through the stud d10; the outer cylindrical surface of the main bearing assembly 15 is used as a mounting surface for mounting the shield body II16, and the front side surface of the main drive support 1 is used as a limit surface to limit the movement of the shield body II16, and the shield body II16 is fixed through the stud d10.

[0035] It should be noted that when converting from the telescopic translation assembly mode to the fixed assembly mode, it is necessary to remove the front housing 2, the rear housing 3, the stud a4, the main drive slide extension ring 5, the stud b6, the stud c8 and the main drive connecting ring 7. The bearing assembly 15 and the main drive support 1 assembly remain unchanged, and the main drive fixed ring plate 9 and the main drive support 1 are fixed to the shield body II16 through the stud d10. At this moment, the relationship between the main drive and the shield body is fixed and there is no relative movement, thereby completing the conversion process of the entire assembly mode. The other removed parts are retained. When the main drive support needs to be converted from a fixed type to a telescopic translation type, the above work process can be reversed to dismantle and assemble to achieve the purpose.

[0036] In an optional embodiment, the main drive fixed ring plate 9 has a first part 91 and a second part 92, the first part 91 is fixed to the rear side of the main drive support 1 through the stud d10 and covers the threaded hole 13 on the rear side, and the second part 92 covers the outer circumferential surface of the main drive support 1. This structure allows the main drive fixed ring plate to serve as a pad for the longer stud d10 on the one hand, and on the other hand, its structure can cover and protect the outer diameter slide surface and the inner threaded hole 13 of the main drive support 1, ensuring that these structures will not be mechanically damaged during the working period of the main drive as a fixed structure, ensuring that the main drive assembly form of the project can be smoothly converted from fixed to telescopic translation in the future.

[0037] Based on the same inventive concept, the present invention also provides a shield machine, including a main drive support 1, a main bearing assembly 15 and a shield body II 16. The shield machine realizes the fixed installation of the shield body II 16 and the main bearing assembly 15 through the shield machine main drive support structure in the second embodiment.

[0038] The shield machine in the present invention realizes the conversion of two assembly modes through the structures in the first embodiment and the second embodiment.

[0039] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A shield machine main drive support structure, comprising a main drive support (1) and a main bearing assembly (15), wherein the main bearing assembly (15) is mounted on the front side of the main drive support (1) via a stud e (12); characterized in that: The shield machine main drive support structure has a telescopic translation assembly state and a fixed assembly state. When the shield machine main drive support structure is in the telescopic translation assembly state, it comprises a main drive housing (11), a main drive slideway extension ring (5) and a main drive connection ring (7); The main drive housing (11), the main drive support (1) and the main drive slideway extension ring (5) are connected in sequence from front to back via studs a (4), and the main drive housing (11) is located outside the main bearing assembly (15); the outer circumferential surface of the main drive housing (11) is used as a sliding surface for connecting to a shield body I (14) connected to the telescopic translation main drive; the main drive connecting ring (7) is installed on the rear side of the main drive support (1) via studs c (8); the main drive slideway extension ring (5) is also connected to the main drive support (1) via studs b (6), and the studs b (6) are located inside the studs a (4); When the main drive support structure of the shield machine is in a fixed assembly state, it comprises a main drive fixing ring plate (9); the main drive fixing ring plate (9) is mounted on the rear side of the main drive support (1) via a stud d (10); the outer cylindrical surface of the main bearing assembly (15) is used as a mounting surface for mounting a shield body II (16); the front side surface of the main drive support (1) is used as a limiting surface for limiting the movement of the shield body II (16), and the shield body II (16) is fixed via the stud d (10); When the main drive support structure of the shield machine is converted from a telescopic translation assembly state to a fixed assembly state, it is necessary to remove the main drive housing (11), stud a (4), main drive slideway extension ring (5), stud c (8) and main drive connecting ring (7); the main bearing assembly (15) and the main drive support (1) are assembled unchanged, and the main drive fixing ring plate (9) and the main drive support (1) are fixed to the shield body II (16) by stud d (10). At this moment, the main drive support (1) and the shield body II (16) are in a fixed relationship and do not move relative to each other, thereby completing the conversion process of the entire assembly mode.

2. A shield machine, characterized in that: It comprises a main drive support structure of a shield machine as described in claim 1.

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