Main machine of tunneling equipment and tunneling equipment

Abstract

The utility model provides a main machine of tunneling equipment and the tunneling equipment. The main machine of the tunneling equipment comprises a first shield body and a second shield body and is provided with a spherical hinge structure; the spherical hinge structure comprises a spherical head part arranged on the first shield body and a spherical surface part which is arranged on the second shield body and surrounds and wraps the spherical head part; any one of the spherical head part and the spherical surface part is provided with a protruding guide block; wherein the guide block is attached to the spherical head part and the spherical surface part respectively. According to the utility model, the ball head part can be prevented from greatly moving back and forth or moving through the guide block, and the guide block can also provide a guide effect for the rotation of the ball head part and provide supporting force for the rotation of the ball head part.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and more specifically, to a main unit of a tunneling machine and the tunneling equipment itself. Background Technology

[0002] During tunnel construction, excavation equipment is used for excavation, primarily tunnel boring machines (TBMs) or pipe jacking machines. Taking a TBM as an example, the excavating equipment needs to turn while moving. Therefore, structures are required between the front and middle shields, and between the middle and tail shields, to facilitate turning. These structures typically include multiple hydraulic cylinders and hinged structures that movably connect the front and middle shields, or the middle and tail shields. Thus, the extension of each cylinder can be controlled to achieve different strokes according to the required turning angle.

[0003] The articulated structure can be either a planar articulated structure or a ball joint structure. For certain specific tunneling scenarios, small to medium-sized tunnel boring machines (TBMs) are required. The advantages of small TBMs are: small turning radius, flexible operation, and the ability to make sharp turns. Therefore, they can replace towing pipes and be used in various excavation scenarios with small turning radii. Small TBMs are compact in size, with a diameter generally between 2 and 4.2 meters. Therefore, the flexible ball joint structure is a key structure to ensure that small TBMs can achieve their sharp-turn tunneling capabilities.

[0004] During prolonged operation, the ball joint structure is prone to wear due to repeated large-area contact and mutual grinding between the ball head and the ball surface. Wear can lead to jamming or damage, affecting construction efficiency. Therefore, it is essential to prevent the ball joint structure from jamming or being damaged due to wear. Utility Model Content

[0005] To solve the above problems, this utility model provides a main unit for a tunneling device. The main unit includes a first shield body and a second shield body, and is provided with a ball joint structure. The ball joint structure includes a ball head disposed on the first shield body and a ball surface disposed on the second shield body and surrounding and covering the ball head. At least one of the ball head and the ball surface is provided with a protruding guide block. The guide block is respectively attached to the ball head and the ball surface.

[0006] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: This utility model can limit the large-scale forward and backward displacement or swaying of the ball head by the guide block. The guide block can also provide guidance for the rotation of the ball head and provide support for the rotation of the ball head.

[0007] Furthermore, the ball head has a first embedding groove, and the guide block is disposed in the first embedding groove and protrudes from the first embedding groove toward the ball face; or, the ball face has a second embedding groove, and the guide block is disposed in the second embedding groove and protrudes from the second embedding groove toward the ball head.

[0008] Compared with existing technologies, the technical effects achieved by this solution are as follows: The ball head has a first embedding groove, and the guide block is disposed within the first embedding groove; alternatively, a second embedding groove is machined on the ball surface, and the guide block is disposed within the second embedding groove. This simplifies the fixing method of the guide block, facilitating disassembly and replacement. Furthermore, machining the first embedding groove on the ball head simplifies the machining process. Additionally, the main unit has an excavation end, and a seal is provided between the ball head and the ball surface. The ball hinge structure has a distal end located away from the excavation end, and the guide block is disposed between the seal and the distal end.

[0009] Compared with existing technologies, the guide block is positioned between the seal and the far end, making it easier to install when assembling the main unit. When the guide block needs to be replaced, it can be replaced without removing other components, making maintenance more convenient.

[0010] Furthermore, a seal is provided between the ball head and the ball surface, and there are at least two guide blocks, which are symmetrically arranged on opposite sides of the seal.

[0011] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the guide parts are symmetrically arranged on opposite sides of the seal, so that the ball head and the ball surface come into contact with each other through the guide block, which further effectively restricts the large-scale forward and backward displacement or swaying of the ball head, and provides a more stable support force for the rotation of the ball head.

[0012] Furthermore, the head of the ball has an outwardly convex arc surface, while the face of the ball has an inwardly concave arc surface.

[0013] Compared with existing technologies, the technical effects achieved by this technical solution are: at least part of the inner wall of the spherical surface surrounds and defines the concave arc surface, which facilitates production and processing, increases processing efficiency, and makes disassembly more convenient.

[0014] Furthermore, the main unit has an excavation end, and the spherical part has a spherical proximal end close to the excavation end, and a spherical distal end opposite to the spherical proximal end and far away from the excavation end; the spherical head is an outwardly convex arc surface, the spherical proximal end is an inwardly concave arc surface adapted to the outwardly convex arc surface, and the spherical distal end is an inwardly concave arc surface.

[0015] Compared with existing technologies, the technical effects achieved by this solution are as follows: the proximal end of the spherical part is a concave arc surface, which matches the convex arc surface of the ball head, allowing the proximal end of the spherical part to stop the ball head and prevent it from separating from the spherical part, thus facilitating the assembly of the ball head and the spherical part together. The distal end of the spherical part is a concave arc surface, which facilitates the processing of the spherical part. At the same time, the concave arc surface at the distal end of the spherical part allows the ball head to be embedded in the spherical part, making the ball joint structure more reasonable.

[0016] Furthermore, the guide block is made of at least one or a combination of the following materials: metal, polymer, inorganic non-metal.

[0017] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: better wear resistance and lower cost for the guide block.

[0018] Furthermore, the tunneling equipment also includes: a telescopic protective device, which is telescopic and is used to cover the gap at the connection between the first shield and the second shield; a first fixing member, which is located at one end of the telescopic protective device and is used to connect the telescopic protective device to the first shield; and a second fixing member, which is located at the end of the telescopic protective device away from the first fixing member and is used to connect the telescopic protective device to the second shield.

[0019] Compared with existing technologies, the technical effects achieved by this solution are as follows: During the process of adjusting the tunneling direction, the telescopic protective device can be extended or shortened by external force, thereby blocking the gap at the connection between the first and second shields and preventing mud, sand and gravel from entering and causing jamming at the connection. One end of the telescopic protective device is fixed to the first shield by the first fastener, and the other end is fixed to the second shield by the second fastener. The fixing method is relatively simple and more convenient during maintenance and repair, making it easier for operators to disassemble and replace.

[0020] Furthermore, the first shield is the middle shield and the second shield is the front shield; or the first shield is the tail shield and the second shield is the middle shield.

[0021] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: The ball joint structure in the technical solution of this utility model can be set between the front shield and the middle shield, or between the middle shield and the tail shield, making the ball joint structure applicable to more situations and more practical.

[0022] This utility model also provides a tunneling device, which includes a host as described in any of the above technical solutions, and therefore has all the beneficial effects of any of the above technical solutions, which will not be repeated here.

[0023] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0024] (1) This utility model can limit the large forward and backward displacement or movement of the ball head by the guide block. The guide block can also provide guidance for the rotation of the ball head and provide support for the rotation of the ball head.

[0025] (2) The guide block is set between the seal and the far end. When assembling the host, the guide block is more convenient to assemble. When the guide block needs to be replaced, other components do not need to be removed. It is also more convenient to maintain and repair. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a tunneling equipment host provided in an embodiment of this utility model;

[0027] Figure 2 for Figure 1 A magnified view of region A in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100: Main unit; 101: First shield body; 102: Second shield body; 103: Excavation end; 110: Spherical head; 120: Spherical surface; 120a: Proximal end of spherical surface; 120b: Distal end of spherical surface; 122: Second embedded groove; 130: Seal; 160: Telescopic protective device; 161: First fixing element; 162: Second fixing element; 200: Guide block. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] This utility model embodiment provides a main unit 100 for a tunneling machine. Specifically, the tunneling machine is a shield tunneling machine, and the main unit 100 is the core structure of the machine, used for tunnel excavation. Besides the main unit 100, the tunneling machine may also include other facilities such as a trolley, power supply unit, and hydraulic system. (See attached diagram.) Figure 1 As shown, the main unit 100 of this utility model includes a first shield body 101 and a second shield body 102, and is provided with a ball joint structure. The ball joint structure includes a ball head 110 disposed on the first shield body 101, and a ball surface 120 disposed on the second shield body 102 and surrounding and covering the ball head 110. At least one of the ball head 110 and the ball surface 120 is provided with a protruding guide block 200. The guide block 200 is respectively attached to the ball head 110 and the ball surface 120.

[0032] Specifically, the ball head 110 has a first embedding groove, the guide block 200 is disposed in the first embedding groove and protrudes from the first embedding groove toward the ball face 120; or the ball face 120 has a second embedding groove 122, the guide block 200 is disposed in the second embedding groove 122 and protrudes from the second embedding groove 122 toward the ball head 110.

[0033] Specifically, the ball head 110 is provided with a first embedding groove, and the guide block 200 is embedded in the first groove so that the guide block 200 is fixed on the ball head 110, which simplifies the fixing method of the fixing block 200 and makes the assembly or disassembly process simpler. At the same time, the first embedding groove on the ball head 110 is provided to facilitate processing. Similarly, the second embedding groove 122 is provided on the ball surface 120 to facilitate processing. At the same time, the method of fixing the guide block 200 is also simpler and easier to install and disassemble.

[0034] For example, see attached. Figure 2 As shown, a seal 130 is provided between the ball head 110 and the ball surface 120 to seal the gap between them, thereby preventing mud and gravel from entering. There are at least two guide blocks 200, which are symmetrically arranged on opposite sides of the seal 130.

[0035] It should be noted that each guide block 200 may include only one guide component, or it may consist of multiple guide components forming an integral guide block 200. For example, a guide block 200 may be formed as a guide ring arranged around the circumference of the host 100, and a guide block 200 may be composed of multiple guide blocks arranged around the circumference of the host 100 and spaced apart.

[0036] The guide portion 200 is symmetrically arranged on opposite sides of the seal 130, so that the ball head 110 and the ball surface 120 are in contact with each other through the guide block 200, which further effectively restricts the large-scale forward and backward displacement or movement of the ball head 110, and provides a more stable support force for the rotation of the ball head 110.

[0037] Specifically, the host 100 has an excavation end 103, a seal 130 is provided between the ball head 110 and the ball surface 120, the ball hinge structure has a far end that is far away from the excavation end 103, and the guide block 200 is provided between the seal 130 and the far end.

[0038] Specifically, the guide block 200 is positioned between the seal 130 and the distal end. When assembling the main unit 100, the assembly of the guide block 200 is more convenient. When the guide block 200 needs to be replaced, it can be replaced without removing other components, making maintenance more convenient.

[0039] For example, the head 110 of the ball has an outwardly convex arc surface, and the face 120 has an inwardly concave arc surface.

[0040] For example, the ball head 110 has an outward convex arc surface, and the ball face 120 has an inward concave arc surface, which facilitates production and processing, increases processing efficiency, and makes disassembly more convenient.

[0041] For example, the main unit 100 has an excavation end 103, and the spherical part 120 has a spherical proximal end 120a close to the excavation end 103, and a spherical distal end 120b opposite to the spherical proximal end 120a and far away from the excavation end 103; the spherical head 110 is an outwardly convex arc surface, the spherical proximal end 120a is an inwardly concave arc surface adapted to the outwardly convex arc surface, and the spherical distal end 120b is an inwardly concave arc surface.

[0042] For example, see attached. Figure 1 As shown, the main unit 100 is provided with an excavation end 103. The proximal end 120a of the spherical part 120 is a concave arc surface, which is adapted to the convex arc surface of the ball head 110. This allows the proximal end 120a to stop the ball head 110 and prevent the ball head 110 from separating from the spherical part 120, thus facilitating the assembly of the ball head 110 and the spherical part 120 together. The distal end 120b of the spherical part 120 is a concave arc surface, which facilitates the processing of the spherical part 120. At the same time, the concave arc surface of the distal end 120b allows the ball head 110 to be embedded in the spherical part 120, making the ball joint structure more reasonable.

[0043] Specifically, the guide block 200 is made of at least one or a combination of the following materials: metal, polymer, and inorganic non-metal. Specifically, the metal can be silver or copper; the polymer can be polyester, nylon, acrylic, chlorofiber, vinylon, or spandex; and the inorganic non-metal can be graphite.

[0044] The use of synthetic fibers such as polyester and nylon makes the guide block 200 more wear-resistant and more corrosion-resistant, resulting in a longer service life for the guide block 200 and eliminating the need for frequent replacement by operators.

[0045] The guide block 200 is preferably made of nylon fabric.

[0046] Specifically, the main unit 100 also includes: a telescopic protective device 160, which is telescopic and is used to cover the gap at the connection between the first shield 101 and the second shield 102; a first fixing member 161 and a second fixing member 162, wherein the first fixing member 161 is located at one end of the telescopic protective device 160 and is used to connect the telescopic protective device 160 to the first shield 101; and the second fixing member 162 is located at the end of the telescopic protective device 160 away from the first fixing member 161 and is used to connect the telescopic protective device 160 to the second shield 102.

[0047] Specifically, as shown in the appendix Figure 2 As shown, when the main unit 100 adjusts the tunneling direction, the gap at the connection between the first shield 101 and the second shield 102 will change with the adjustment direction, causing the telescopic protective device 160 to extend or shorten under external force, thereby adapting to the gap at the connection between the first shield 101 and the second shield 102, thus preventing mud and gravel from entering the gap at the connection, preventing external mud and water from entering the main unit 100 of the tunneling equipment, and preventing damage to the main unit 100; one end of the telescopic protective device 160 is fixed to the first shield 101 by the first fixing member 161, and the other end of the telescopic protective device 160 is fixed to the second shield 102 by the second fixing member 162. The fixing method is relatively simple and more convenient during maintenance and repair, making it easy for operators to disassemble and replace.

[0048] Preferably, the first fixing member 161 is provided with a through hole, and the first shield body 101 is provided with a threaded hole that mates with the through hole of the first fixing member 161. The through hole and the threaded hole coincide, and the screw passes through the through hole and engages with the thread in the threaded hole, so that one end of the telescopic protective device 160 is fixed on the first shield body 101. Similarly, the second fixing member 162 is provided with a through hole, and the second shield body 102 is provided with a threaded hole that mates with the through hole of the second fixing member 162. The through hole and the threaded hole coincide, and the screw passes through the through hole and engages with the thread in the threaded hole, so that the other end of the telescopic protective device 160 is fixed on the second shield body 102.

[0049] Preferably, the telescopic protective device 160 can be made of wear-resistant corrugated pipe. The wear-resistant corrugated pipe has strong wear resistance and protects the gap at the connection between the first shield body 101 and the second shield body 102, preventing mud, sand and gravel from entering the connection.

[0050] For example, the first shield 101 is the middle shield and the second shield 102 is the front shield; or the first shield 101 is the tail shield and the second shield 102 is the middle shield.

[0051] For example, the ball joint structure in the technical solution of this utility model can be disposed between the front shield and the middle shield, or between the middle shield and the tail shield, making the ball joint structure applicable to more situations and more practical. Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, and not to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A main unit of a tunneling equipment, characterized in that, The host (100) includes a first shield body (101) and a second shield body (102), and is provided with a ball joint structure; the ball joint structure includes a ball head (110) disposed on the first shield body (101), and a ball surface (120) disposed on the second shield body (102) and surrounding and covering the ball head (110); at least one of the ball head (110) and the ball surface (120) is provided with a protruding guide block (200); wherein the guide block (200) is respectively attached to the ball head (110) and the ball surface (120).

2. The host computer according to claim 1, characterized in that, The ball head (110) has a first embedding groove, and the guide block (200) is disposed in the first embedding groove and protrudes from the first embedding groove toward the ball surface (120); or, The spherical surface (120) has a second embedding groove (122), and the guide block (200) is disposed in the second embedding groove (122) and protrudes from the second embedding groove (122) toward the spherical head (110).

3. The host computer according to claim 1, characterized in that, The host (100) has an excavation end (103), and a seal (130) is provided between the ball head (110) and the ball surface (120). The ball hinge structure has a distal end away from the excavation end (103), and the guide block (200) is disposed between the seal (130) and the distal end.

4. The host computer according to claim 1, characterized in that, A seal (130) is also provided between the ball head (110) and the ball surface (120), and the number of guide blocks (200) is at least two, and the guide blocks (200) are symmetrically arranged on opposite sides of the seal (130).

5. The host computer according to any one of claims 1-4, characterized in that, The head (110) of the ball is a convex arc surface, and the part (120) of the ball is a concave arc surface.

6. The host computer according to any one of claims 1-4, characterized in that, The host (100) has an excavation end (103), and the spherical part (120) has a spherical proximal end (120a) close to the excavation end (103) and a spherical distal end (120b) opposite to the spherical proximal end (120a) and away from the excavation end (103); the spherical head (110) is an outwardly convex arc surface, the spherical proximal end (120a) is an inwardly concave arc surface adapted to the outwardly convex arc surface, and the spherical distal end (120b) is an inwardly concave arc surface.

7. The host computer according to any one of claims 1-4, characterized in that, The guide block (200) is made of at least one of the following or a combination thereof: metal, polymer, inorganic non-metal.

8. The host computer according to any one of claims 1-4, characterized in that, The host (100) also includes: Telescopic protective device (160), which is telescopic and is used to cover the gap at the connection between the first shield (101) and the second shield (102); The first fixing member (161) is provided at one end of the telescopic protective device (160) and is used to connect the telescopic protective device (160) to the first shield body (101). The second fixing member (162) is located at the end of the telescopic protective device (160) away from the first fixing member (161) and is used to connect the telescopic protective device (160) to the second shield body (102).

9. The host computer according to any one of claims 1-4, characterized in that, The first shield (101) is the middle shield, and the second shield (102) is the front shield; or the first shield (101) is the tail shield, and the second shield (102) is the middle shield.

10. A tunneling device, characterized in that, The tunneling equipment includes the host machine as described in any one of claims 1-9.

Images