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, and the spherical head part can rotate in the spherical surface part; the main machine is further provided with a limiting part, and the limiting part is used for limiting the freedom degree of the spherical head part in the spherical surface part. According to the utility model, the problem of inconvenient control brought to an operator due to flexible rotation of a spherical hinge structure can be avoided, so that the operator can operate the spherical head part to rotate around a specific axis in a specific construction scene and under the turning requirement of a specific angle, and the operation control is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction equipment, in particular to a mainframe of tunneling equipment and the tunneling equipment. Background Art

[0002] During tunnel construction, excavation is performed using tunneling equipment, primarily shield machines or pipe jacking machines. For example, a shield machine requires turning while traveling. Therefore, a turning mechanism is required between the front and middle shields, as well as between the middle and rear shields. This mechanism typically includes multiple cylinders and an articulated structure that flexibly connects the front and middle shields, or the middle and rear shields. This allows the cylinders to be controlled to extend to different lengths, depending on the desired turning angle.

[0003] The articulated structure can be a plane articulated structure or a ball-jointed structure. Among them, for certain specific excavation scenarios, small and medium-sized shield machines (hereinafter referred to as "small shields") are required. The advantages of small shields are: small turning radius, flexible use, and the ability to make sharp turns. Therefore, they can replace drag tubes and be used in a variety of excavation scenarios with small turning radius. The small shield is compact in size, and its diameter is generally between 2 meters and 4.2 meters. Therefore, the ball-jointed structure that can turn flexibly is the key structure to ensure that the small shield can realize its sharp turn excavation function.

[0004] In specific construction scenarios, a small shield machine may only need to turn left and right and / or up and down. The ball joint structure rotates very flexibly, which increases the control difficulty for the operator when adjusting the direction. Therefore, it is very necessary to provide a technical solution that can limit the steering freedom of the main machine of the tunneling equipment to facilitate the operator's adjustment and control. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a main unit of a tunneling equipment, which includes a first shield body, a second shield body, and a ball hinge structure; the ball hinge structure includes a ball head portion arranged on the first shield body, and a spherical portion portion arranged on the second shield body and surrounding and covering the ball head portion, and the ball head portion can rotate within the spherical portion portion; the main unit is also provided with a limiting portion, which is used to limit the freedom of the ball head portion within the spherical portion portion.

[0006] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the ball head can rotate within the spherical portion, so that the main machine can adjust the excavation direction. A limit part is provided in the main machine, which can limit the freedom of the ball head, avoiding inconvenience to the operator due to the flexible rotation of the main machine. In specific construction scenarios, the operator can operate the ball head to rotate around a specific axis, making operation and control more convenient.

[0007] Furthermore, at least two limiting portions are symmetrically arranged on opposite sides of the ball joint structure along the first axis, so that the freedom of the ball head is limited and can only rotate around the first axis.

[0008] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the limiting parts are arranged in pairs and are arranged on opposite sides of the ball joint structure along the first axis, so that the limiting parts can limit the ball head to rotate only around the first axis, thereby facilitating the operator to adjust the excavation direction of the main machine.

[0009] Furthermore, the ball head has an opening, and the limiting portion is formed as a limiting pin passing through the opening in a radial direction.

[0010] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the ball head is provided with an opening, the limiting part is specifically a limiting pin, the limiting pin extends into the opening, so that the limiting pin is fixed on the ball head, which simplifies the fixing method of the limiting part and facilitates the operator to disassemble and install.

[0011] Furthermore, the spherical portion is provided with an embedding hole that cooperates with the opening, and the limiting portion passes through the opening to extend into the embedding hole.

[0012] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the spherical portion is provided with a matching hole, and the limiting portion passes through the opening and is embedded in the matching hole, so that the spherical portion and the ball head are connected through the limiting portion, thereby facilitating the operator to operate the ball head to rotate around a specific axis.

[0013] Furthermore, cutting planes are provided on opposite sides of the ball head, the limiting portion is fixed on one side of the spherical portion close to the ball head, and the limiting portion is provided with a supporting surface, and the supporting surface and the cutting plane are close to each other.

[0014] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: cutting planes are provided on the opposite sides of the ball head, which cooperate with the abutment surface of the limiting part, thereby limiting the freedom of the ball head within the spherical part, thereby facilitating the operator to operate the ball head to rotate around a specific axis.

[0015] Furthermore, the limiting portion is fixed to the spherical portion by means of screws; wherein the limiting portion is provided with a countersunk hole, the spherical portion is provided with a threaded hole, and the screw passes through the countersunk hole and engages with the thread in the threaded hole.

[0016] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the limiting part is fixed on the spherical part by a screw, which is convenient for installing and disassembling the limiting part. At the same time, the limiting part is provided with a countersunk hole, so that when the screw is fixing the limiting part, it can prevent the screw from protruding relative to the surface of the limiting part, thereby avoiding position interference between the screw and the ball head. The spherical part is provided with a threaded hole that cooperates with the countersunk hole, so that after the screw passes through the countersunk hole, it engages with the thread in the threaded hole, thereby fixing the limiting part on the side of the spherical part close to the ball head.

[0017] Furthermore, the telescopic protective device can be telescopic and used to cover the gap at the connection between the first shield body and the second shield body.

[0018] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the first shield body is connected to the second shield body, and the telescopic protective device is arranged at the connection between the first shield body and the second shield body. In the process of the main machine adjusting the excavation direction, the telescopic protective device can be extended or shortened by external force, thereby blocking the gap at the connection between the first shield body and the second shield body, preventing mud and gravel from entering and causing jamming at the connection.

[0019] Furthermore, the main unit also includes: a first fixing member, which is arranged at one end of the telescopic protective device and is used to connect the telescopic protective device with the first shield body; a second fixing member, which is arranged at one end of the telescopic protective device away from the first fixing member and is used to connect the telescopic protective device with the second shield body.

[0020] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: one end of the telescopic protective device is fixed to the first shield body through the first fixing member, and the other end of the telescopic protective device is fixed to the second shield body through the second fixing member. The fixing method is relatively simple and more convenient during the repair and maintenance process, which is convenient for operators to disassemble and replace.

[0021] Furthermore, the first shield body is a middle shield, and the second shield body is a front shield; or the first shield body is a tail shield, and the second shield body is a middle shield.

[0022] Compared with the existing technology, the technical effect achieved by adopting this technical solution is: the ball hinge structure in the technical solution of this application can be set between the front shield and the middle shield, and can also be set between the middle shield and the tail shield, so that the ball hinge structure has more applicable occasions and is more practical.

[0023] The present invention also provides a tunneling device, which includes a main machine as in any of the above technical solutions. Therefore, it has all the beneficial effects of any of the above technical solutions, which will not be repeated here.

[0024] After adopting the technical solution of the utility model, the following technical effects can be achieved:

[0025] (1) The ball head can rotate within the spherical portion, so that the mainframe of the excavation equipment can adjust the excavation direction. A limiter is provided in the mainframe, which can limit the freedom of the ball head to avoid inconvenience to the operator due to the flexible rotation, swinging and movement of the mainframe. In a specific construction scenario, the operator can operate the ball head to rotate around a specific axis;

[0026] (2) The limiting parts are arranged in pairs and are arranged on opposite sides of the ball joint structure along the first axis, so that the limiting parts can limit the ball head to rotate only around the first axis, thereby facilitating the operator to adjust the excavation direction of the main machine.

[0027] (3) The limiting portion forms a ball head with an opening, and the limiting portion is specifically a limiting pin shaft. The limiting pin shaft extends into the opening, so that the limiting pin shaft is fixed on the ball head, which simplifies the fixing method of the limiting portion and is convenient for operators to disassemble and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic structural diagram of a mainframe of a tunneling device provided by an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 Enlarged view of middle area A;

[0030] Figure 3 is a second structural schematic diagram of the limiting portion;

[0031] Figure 4 for Figure 3 Magnified view of area B in the middle.

[0032] Description of reference numerals:

[0033] 100: Main unit; 101: First shield body; 102: Second shield body; 104: Drive assembly; 110: Ball head; 112: Opening; 114: Cutting plane; 120: Spherical portion; 123: Embedding hole; 160: Telescopic protective device; 161: First fixing member; 162: Second fixing member; 300: Limiting portion; 300a: Abutment surface; 300b: Countersunk hole. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] The utility model provides a main unit 100 of a tunneling device, which includes a first shield body 101, a second shield body 102, and a ball joint structure; the ball joint structure includes a ball head 110 arranged on the first shield body 101, and a spherical portion 120 arranged on the second shield body 102 and surrounding and covering the ball head 110, and the ball head 110 can rotate within the spherical portion 120; the main unit 100 is also provided with a limiting portion 300, which is used to limit the freedom of the ball head 110 within the spherical portion 120.

[0036] Specifically, as attached Figure 1 As shown, the present invention provides a host 110, the host 100 includes a first shield body 101 and a second shield body 102, the first shield body 101 is connected to the second shield body 102; Figure 2 As shown, the ball joint structure includes a ball head 110 and a spherical portion 120. The ball head 110 can rotate within the spherical portion 120, so that the main machine 100 can adjust the excavation direction. A limit portion 300 is provided in the main machine 100, and the limit portion 300 can limit the degree of freedom of the ball head 110. The degree of freedom of the ball head 110 includes the degree of freedom in the direction of rotation, and also includes shaking, swaying and moving. The present invention can avoid the inconvenience caused to the operator due to the flexible rotation of the main machine 100, so that in specific construction scenarios, the operator can limit the degree of freedom of the ball head 110, reduce the flexibility of the ball joint structure, make operation and control more convenient, and avoid shaking, swaying or moving of the ball head 110.

[0037] For example, at least two limiting portions 300 are symmetrically arranged on opposite sides of the ball joint structure along the first axis, so that the freedom of the ball head 110 is limited and it can only rotate around the first axis.

[0038] For example, the limiting portion 300 is symmetrically arranged relative to the ball joint structure. When the limiting portion 300 is relatively arranged along the first axis, the limiting portion 300 can limit the ball head 110 to rotate only around the first axis, thereby adjusting the excavation direction. In a specific construction environment, the difficulty of the operator in adjusting the excavation direction is reduced, thereby facilitating the operator to operate the ball head to rotate around a specific axis.

[0039] Specifically, during the excavation process of the main machine 100, the excavation direction is mainly adjusted in the horizontal direction and the vertical direction. Therefore, the direction of the first axis can be the vertical direction of up and down, or the horizontal direction of left and right.

[0040] For example, the ball head 110 has an opening 112 , and the limiting portion 300 is formed as a limiting pin passing through the opening 112 in a radial direction.

[0041] For example, as shown in the attached Figure 2As shown, the ball head 110 is provided with an opening 112, and the limiting part 300 is specifically a limiting pin shaft, which extends into the opening 112 so that the limiting pin shaft is fixed on the ball head 110, simplifying the fixing method of the limiting part 300 and facilitating disassembly and installation by the operator.

[0042] Specifically, the spherical portion 120 is provided with an embedding hole 123 that cooperates with the opening 112 , and the limiting portion 300 passes through the opening 112 to extend into the embedding hole 123 .

[0043] Specifically, as attached Figure 2 As shown, the spherical portion 120 is provided with an embedding hole 123, which cooperates with the opening 112. The limiting portion 300 passes through the opening 112 and extends into the embedding hole 123, so that the spherical portion 120 is connected to the ball head 110 through the limiting portion, thereby limiting the freedom of the ball head 110 in the spherical portion 120, thereby facilitating the operator to operate the ball head to rotate around a specific axis.

[0044] For example, the cutting planes 114 are provided on opposite sides of the ball head 110, the limiting portion 300 is fixed on the side of the spherical portion 120 close to the ball head 110, and the limiting portion 300 is provided with abutting surfaces 300a, and the abutting surfaces 300a and the cutting plane 114 are close to each other.

[0045] For example, as shown in the attached Figure 4 As shown, cutting planes 114 are provided on opposite sides of the ball head 110, and the cutting planes 114 cooperate with the abutment surface 300a of the limiting portion 300, wherein the limiting portion 300 is fixed on the spherical portion 120. During the process of adjusting the excavation direction, the abutment surface 300a can abut against the cutting plane 114 to limit the freedom of the ball head 110 within the spherical portion 120, thereby facilitating the operator to operate the ball head to rotate around a specific axis.

[0046] In addition, if the cutting plane 114 is set in the horizontal direction, the limiting portion 300 is fixed on the spherical portion 120 in the horizontal direction, and then cooperates with the cutting plane 114, thereby limiting the rotation of the host 100 in the horizontal direction. Similarly, if the cutting plane 114 and the limiting portion 300 are set in the vertical direction, the rotation of the host 100 in the vertical direction is limited.

[0047] Specifically, the limiting portion 300 is fixed to the spherical portion 120 by screws; wherein the limiting portion 300 is provided with a countersunk hole 300b, and the spherical portion 120 is provided with a threaded hole, and the screw passes through the countersunk hole 300b and engages with the thread in the threaded hole.

[0048] Specifically, the limiting portion 300 is fixed to the spherical portion 120 by screws, which facilitates the installation and disassembly of the limiting portion 300. At the same time, the limiting portion 300 is provided with a countersunk hole 300b, so that when the screw is fixing the limiting portion 300, it can prevent the screw from protruding relative to the surface of the limiting portion 300, thereby avoiding position interference between the screw and the ball head 110. The spherical portion 120 is provided with a threaded hole that cooperates with the countersunk hole 300b, so that after the screw passes through the countersunk hole 300b, it engages with the thread in the threaded hole, thereby fixing the limiting portion 300 on the side of the spherical portion 120 close to the ball head.

[0049] Preferably, the limiting portion 300 is provided with a plurality of countersunk holes 300b, and the countersunk holes 300b are dispersed along the length direction of the limiting portion 300 to increase the reliability of fixing the limiting portion 300 to the spherical portion 120, preventing the limiting portion 300 from being separated from the spherical portion 120 during the construction of the main unit 100, thereby ensuring the stability of the main unit 100.

[0050] Specifically, the host 100 further includes a telescopic protection device 160 . The telescopic protection device 160 is telescopic and is used to cover the gap at the connection between the first shield body 101 and the second shield body 102 .

[0051] Specifically, as attached Figure 2 As shown, the main machine 100 is provided with a telescopic protective device 160, the first shield body 101 is connected to the second shield body 102, and the telescopic protective device 160 is provided at the connection between the first shield body 101 and the second shield body 102; when the main machine 100 adjusts the excavation direction, the telescopic protective device 160 can be extended or shortened by external force, thereby blocking the gap at the connection between the first shield body 101 and the second shield body 102, preventing mud and gravel from entering and causing jamming at the connection.

[0052] For example, the host 100 also includes: a first fixing member 161 and a second fixing member 162, 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 provided at one 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.

[0053] For example, as shown in the attached Figure 2 As shown, one end of the telescopic protective device 160 is fixed to the first shield body 101 through a first fixing member 161, and the other end of the telescopic protective device 160 is fixed to the second shield body 102 through a second fixing member 162. The fixing method is relatively simple and more convenient during repair and maintenance, making it easier for operators to disassemble and replace.

[0054] 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 cooperates with the through hole of the first fixing member 161, the through hole and the threaded hole coincide with each other, 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 to the first shield body 101, and the second fixing member 162 is also provided with a through hole, and the second shield body 102 is provided with a threaded hole that cooperates with the through hole of the second fixing member 162, the through hole and the threaded hole coincide with each other, 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 to the second shield body 102.

[0055] Preferably, the telescopic protection device 160 can be made of a wear-resistant bellows, which has strong wear resistance and protects the gap between the first shield body 101 and the second shield body 102 to prevent mud, sand and gravel from entering the connection.

[0056] For example, the host 100 is further provided with a plurality of drive assemblies 104 that are dispersedly arranged axially around the host 100 . The drive assemblies 104 are used to cooperate with the ball joint structure to drive the host 100 to turn.

[0057] For example, as shown in the attached Figure 1 As shown, the host 100 is provided with a driving assembly 104, and the driving assembly 104 is distributed along the axial direction of the host 100. When the host 100 turns, the driving assemblies 104 need to cooperate with each other. There are multiple driving assemblies 104. The different elongation of the driving assembly 104 drives the spherical part 120 to rotate, thereby driving the host 100 to turn.

[0058] For example, the first shield body 101 is a middle shield, and the second shield body 102 is a front shield; or the first shield body 101 is a tail shield, and the second shield body 102 is a middle shield.

[0059] For example, the ball joint structure in the technical solution of the present application can be arranged between the front shield and the middle shield, or between the middle shield and the rear shield, so that the ball joint structure has more applicable occasions and is more practical.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A main engine of a tunneling device, characterized in that: The host (100) comprises a first shield body (101), a second shield body (102), and is provided with a ball joint structure; the ball joint structure comprises a ball head (110) arranged on the first shield body (101), and a spherical portion (120) arranged on the second shield body (102) and surrounding and covering the ball head (110); the ball head (110) is capable of rotating within the spherical portion (120); the host (100) is further provided with a limiting portion (300), and the limiting portion (300) is used to limit the degree of freedom of the ball head (110) within the spherical portion (120).

2. The host according to claim 1, wherein: At least two of the limiting portions (300) are symmetrically arranged on opposite sides of the ball joint structure along the first axis, so that the degree of freedom of the ball head (110) is limited and the ball head (110) can only rotate around the first axis.

3. The host according to claim 1, wherein: The ball head (110) has an opening (112), and the limiting portion (300) is formed as a limiting pin passing through the opening (112) in a radial direction.

4. The host according to claim 3, characterized in that The spherical portion (120) is provided with an embedding hole (123) that cooperates with the opening (112), and the limiting portion (300) passes through the opening (112) to extend into the embedding hole (123).

5. The host according to claim 1, wherein: Cutting planes (114) are provided on opposite sides of the ball head (110); the limiting portion (300) is fixed on a side of the spherical portion (120) close to the ball head (110); the limiting portion (300) is provided with a supporting surface (300a); and the supporting surface (300a) and the cutting plane (114) are close to each other.

6. The host according to claim 5, characterized in that The limiting portion (300) is fixed to the spherical portion (120) by means of screws; wherein the limiting portion (300) is provided with a countersunk hole (300b), the spherical portion (120) is provided with a threaded hole, and the screw passes through the countersunk hole (300b) and engages with the thread in the threaded hole.

7. The host according to any one of claims 1 to 6, characterized in that: The host (100) further includes: A telescopic protective device (160) is capable of being telescopic and is used to cover a gap at a connection between the first shield body (101) and the second shield body (102).

8. The host according to claim 7, characterized in that: The host (100) further includes: a first fixing member (161), the first fixing member (161) being provided at one end of the telescopic protective device (160) and being used for connecting the telescopic protective device (160) to the first shield body (101); A second fixing member (162) is provided at one end of the telescopic protection device (160) away from the first fixing member (161), and is used to connect the telescopic protection device (160) with the second shield body (102).

9. The host according to any one of claims 1 to 6, characterized in that: The first shield body (101) is a middle shield, and the second shield body (102) is a front shield; or the first shield body (101) is a tail shield, and the second shield body (102) is a middle shield.

10. A tunneling device, characterized in that: The excavation equipment includes a main machine according to any one of claims 1-9.

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