Anti-deflection tube push bench structure

Abstract

The utility model discloses an anti-deflection pipe jacking machine structure which comprises a heading machine cutter head, a heading machine body, an anti-deflection center rod and an anti-deflection pipe joint, the anti-deflection center rod is arranged on the heading machine cutter head, and the anti-deflection center rod is arranged in a soil layer to be tunneled in advance; and the heading machine main body is arranged in the anti-deflection pipe joint in a sliding manner. Firstly, the anti-deflection center rod is drilled into a soil layer to be tunneled, the anti-deflection center rod is used for guiding the tunneling direction of the cutterhead of the tunneling machine, the tunneling direction of the cutterhead of the tunneling machine is prevented from deflecting, meanwhile, the anti-deflection pipe joint is used for guiding the tunneling direction of the tunneling machine body, and the tunneling direction of the tunneling machine body is prevented from deflecting. Therefore, the problem that the direction of the pipe jacking machine deflects in the tunneling process can be effectively avoided, and then the tunneling precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe jacking construction equipment, in particular to an anti-deflection pipe jacking machine structure. Background Art

[0002] The pipe jacking machine is a construction equipment used in pipe jacking construction. The pipe jacking machine currently used is mainly a hydraulic pipe jacking machine, which is mainly composed of a rotary excavation system, a main top hydraulic propulsion system, a soil conveying system, a grouting system, a measuring device, a ground hoisting equipment and an electrical system. Among them, the rotary excavation system (commonly known as the "machine head") is mainly composed of a machine head housing, a cutting disc, a cutter reducer, a mud delivery and discharge mechanism, a hydraulic power unit, a deviation correction hydraulic cylinder, a waterproof ring, a cutter disc rotating shaft, an electrical system, an automatic control system and ancillary devices. Since pipe jacking construction requires pushing the pipe section into the excavated tunnel at one time, in order to reduce the difficulty of pipe jacking construction and improve the safety of pipe jacking construction, pipe jacking construction generally adopts a straight-line excavation operation. However, the excavation disc is affected by factors such as soil settlement during the excavation process, which will cause the excavation direction to deviate, affecting the accuracy of the excavation line direction. Utility Model Content

[0003] The utility model aims to provide an anti-deflection pipe jacking machine structure to solve the problem of direction deflection of the pipe jacking machine during the excavation process, thereby improving the accuracy of excavation.

[0004] The utility model is realized by the following technical solutions:

[0005] A deflection-proof pipe jacking machine structure includes a tunnel boring machine cutterhead, a tunnel boring machine body, an anti-deflection center rod and an anti-deflection pipe section, wherein the anti-deflection center rod is arranged on the tunnel boring machine cutterhead, and the anti-deflection center rod is arranged in advance in the soil layer to be excavated; the tunnel boring machine body is slidably arranged in the anti-deflection pipe section. In order to solve the above technical problems and achieve corresponding technical effects, the utility model first drills the anti-deflection center rod into the soil layer to be excavated, and uses the anti-deflection center rod to guide the excavation direction of the tunnel boring machine cutterhead to avoid the excavation direction of the tunnel boring machine cutterhead from deflecting, and at the same time uses the anti-deflection pipe section to guide the excavation direction of the tunnel boring machine body to avoid the excavation direction of the tunnel boring machine body from deflecting, thereby effectively avoiding the problem of direction deflection of the pipe jacking machine during the excavation process, thereby improving the accuracy of excavation.

[0006] Further technical solutions:

[0007] The anti-deflection center rod is arranged at the center of the cutter head of the tunnel boring machine, and the anti-deflection center rod is a drill rod with drilling capability.

[0008] Furthermore: the anti-deflection center rod passes through the tunnel boring machine cutter head and extends into the tunnel boring machine body, and one end of the anti-deflection center rod is connected to a driving motor.

[0009] Furthermore: a motor movable cavity is arranged on the side of the tunnel boring machine cutter head away from the soil layer to be tunneled, the drive motor is arranged in the motor movable cavity, and the drive motor can slide back and forth along the motor movable cavity.

[0010] Furthermore: the setting direction of the motor active chamber is consistent with the excavation direction, and a hydraulic cylinder is arranged in the motor active chamber, the fixed end of the hydraulic cylinder is fixed to the motor active chamber, and the driving motor is fixed to the active end of the hydraulic cylinder.

[0011] Furthermore: a cylinder bottom sensor and a cylinder top sensor are arranged in the hydraulic cylinder, and the cylinder bottom sensor and the cylinder top sensor are used to detect the position of the piston in the hydraulic cylinder and are used to control the pressurization or depressurization of the hydraulic cylinder.

[0012] Furthermore: when the piston contacts the cylinder bottom sensor, the hydraulic cylinder is in a pressurized state, and the drive motor is in a powered-on state, and the anti-deflection center rod extends toward the front of the soil layer to be excavated.

[0013] Furthermore: when the piston contacts the cylinder top sensor, the hydraulic cylinder is in a pressure relief state, and the drive motor is in a shutdown state, and the anti-deflection center rod is stationary in the soil layer to be excavated.

[0014] Furthermore: an anti-deflection slide rail is arranged in the anti-deflection pipe section, an anti-deflection slide groove is opened on the tunnel boring machine body, and the anti-deflection slide rail and the anti-deflection slide groove cooperate with each other.

[0015] Furthermore: the anti-deflection pipe section is also provided with anti-deflection positioning nails, the anti-deflection positioning nails are arranged on the pipe wall of the anti-deflection pipe section, and the anti-deflection positioning nails are inserted into the soil layer for fixing.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] 1. The utility model discloses an anti-deflection pipe jacking machine structure. First, an anti-deflection center rod is drilled into the soil layer to be excavated, and the anti-deflection center rod is used to guide the excavation direction of the cutter head of the tunnel boring machine to avoid the excavation direction of the cutter head of the tunnel boring machine from being deflected. At the same time, an anti-deflection pipe section is used to guide the excavation direction of the tunnel boring machine body to avoid the excavation direction of the tunnel boring machine body from being deflected, thereby effectively avoiding the problem of direction deflection of the pipe jacking machine during the excavation process, thereby improving the accuracy of excavation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the local structure of the connection between the anti-deflection center rod, the drive motor, the motor active chamber and the hydraulic cylinder;

[0021] Figure 3 It is a schematic diagram of the piston cylinder structure;

[0022] Figure 4 This is a schematic diagram of the main structure of the tunnel boring machine;

[0023] Figure 5 Schematic diagram of the anti-deflection pipe segment structure.

[0024] Marks and corresponding parts names in the attached drawings:

[0025] 1- tunnel boring machine cutterhead, 2- tunnel boring machine body, 3- anti-deflection center rod, 4- anti-deflection pipe section, 5- driving motor, 6- motor active chamber, 7- hydraulic cylinder, 21- anti-deflection slide groove, 41- anti-deflection slide rail, 42- anti-deflection positioning pin, 71- cylinder bottom sensor, 72- cylinder top sensor, 73- piston. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0027] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0028] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0030] Example:

[0031] like Figure 1 to Figure 5 As shown, the utility model provides an anti-deflection pipe jacking machine structure, including a tunnel boring machine cutter head 1, a tunnel boring machine body 2, an anti-deflection center rod 3 and an anti-deflection pipe section 4, wherein the anti-deflection center rod 3 is arranged on the tunnel boring machine cutter head 1, and the anti-deflection center rod 3 is arranged in advance in the soil layer to be excavated; the tunnel boring machine body 2 is slidably arranged in the anti-deflection pipe section 4. In this embodiment, the anti-deflection center rod is first drilled into the soil layer to be excavated, and the anti-deflection center rod 3 is used to guide the excavation direction of the tunnel boring machine cutter head 2 to avoid the excavation direction of the tunnel boring machine cutter head 2 from deflecting, and the anti-deflection pipe section 4 is used to guide the excavation direction of the tunnel boring machine body 2 to avoid the excavation direction of the tunnel boring machine body 2 from deflecting, thereby effectively avoiding the problem of direction deflection of the pipe jacking machine during the excavation process, thereby improving the accuracy of excavation. Furthermore, the anti-deflection center rod 3 is arranged at the center of the tunnel boring machine cutter head 1, and the anti-deflection center rod 3 is a drill rod with drilling capability. Arranging the anti-deflection center rod 3 at the center of the tunnel boring machine cutter head 1 can prevent the device from rotating with the tunnel boring machine cutter head 1, thereby ensuring that it can effectively be located at the center of the tunnel boring machine cutter head 1 to play a guiding role, thereby preventing the tunneling direction of the tunnel boring machine cutter head 1 from deflecting.

[0032] The anti-deflection center rod 3 penetrates the tunnel boring machine cutter head 1 and extends into the tunnel boring machine body 2, and one end of the anti-deflection center rod 3 is connected to a drive motor 5. In this embodiment, the anti-deflection center rod 3 is driven by the drive motor 5 to ensure that it can be quickly and effectively transferred to the soil layer to be excavated.

[0033] A motor activity chamber 6 is provided on the side of the tunnel boring machine cutter head 1 away from the soil layer to be excavated, and the drive motor 5 is provided in the motor activity chamber 6, and the drive motor 5 can slide back and forth along the motor activity chamber 6. Specifically, the setting direction of the motor activity chamber 6 is consistent with the excavation direction, and a hydraulic cylinder 7 is provided in the motor activity chamber 6, the fixed end of the hydraulic cylinder 7 is fixed to the motor activity chamber 6, and the drive motor 5 is fixed to the movable end of the hydraulic cylinder 7. A cylinder bottom sensor 71 and a cylinder top sensor 72 are provided in the hydraulic cylinder 7, and the cylinder bottom sensor 71 and the cylinder top sensor 72 are used to detect the position of the piston 73 in the hydraulic cylinder 7, and are used to control the pressurization or depressurization of the hydraulic cylinder 7. When the piston 73 contacts the cylinder bottom sensor 71, the hydraulic cylinder 7 is in a pressurized state, and the drive motor 5 is in a powered-on state, and the anti-deflection center rod 3 extends toward the front of the soil layer to be excavated. When the piston 73 contacts the cylinder top sensor 72, the hydraulic cylinder 7 is in a depressurized state, and the drive motor 5 is in a stopped state, and the anti-deflection center rod 3 is stationary in the soil layer to be excavated. In this embodiment, the reciprocating motion of the drive motor 5 in the motor active chamber 6 can reduce the energy consumption of the drive motor 5.

[0034] An anti-deflection slide rail 41 is provided in the anti-deflection pipe section 4, and an anti-deflection slide groove 21 is provided on the tunnel boring machine body 2, and the anti-deflection slide rail 41 cooperates with the anti-deflection slide groove 21. In this embodiment, the anti-deflection slide rail 41 cooperates with the anti-deflection slide groove 21, and this structural form can effectively use the anti-deflection pipe section 4 to guide the tunneling direction of the tunnel boring machine body 2, thereby effectively preventing the tunneling direction of the tunnel boring machine body 2 from deflecting. At the same time, in order to ensure the stability of the anti-deflection pipe section 4, an anti-deflection positioning nail 42 is also provided on the anti-deflection pipe section 4, and the anti-deflection positioning nail 42 is provided on the pipe wall of the anti-deflection pipe section 4, and the anti-deflection positioning nail 42 is inserted into the soil layer for fixing.

[0035] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An anti-deflection pipe jacking machine structure, characterized in that: The invention comprises a tunnel boring machine cutterhead (1), a tunnel boring machine body (2), an anti-deflection center rod (3) and an anti-deflection pipe section (4), wherein the anti-deflection center rod (3) is arranged on the tunnel boring machine cutterhead (1), and the anti-deflection center rod (3) is arranged in advance in the soil layer to be excavated; The tunnel boring machine body (2) is slidably arranged in the anti-deflection pipe section (4).

2. The anti-deflection pipe jacking machine structure according to claim 1, characterized in that: The anti-deflection center rod (3) is arranged at the center of the tunnel boring machine cutter head (1), and the anti-deflection center rod (3) is a drilling rod with drilling capability.

3. The anti-deflection pipe jacking machine structure according to claim 2, characterized in that: The anti-deflection center rod (3) penetrates the tunnel boring machine cutter head (1) and extends into the tunnel boring machine body (2), and one end of the anti-deflection center rod (3) is connected to a drive motor (5).

4. The anti-deflection pipe jacking machine structure according to claim 3, characterized in that: A motor activity chamber (6) is provided on the side of the tunnel boring machine cutter head (1) away from the soil layer to be tunneled, the drive motor (5) is arranged in the motor activity chamber (6), and the drive motor (5) can slide back and forth along the motor activity chamber (6).

5. The anti-deflection pipe jacking machine structure according to claim 4, characterized in that: The setting direction of the motor active chamber (6) is consistent with the excavation direction, and a hydraulic cylinder (7) is arranged in the motor active chamber (6), the fixed end of the hydraulic cylinder (7) is fixed to the motor active chamber (6), and the drive motor (5) is fixed to the movable end of the hydraulic cylinder (7).

6. The anti-deflection pipe jacking machine structure according to claim 5, characterized in that: A cylinder bottom sensor (71) and a cylinder top sensor (72) are arranged in the hydraulic cylinder (7). The cylinder bottom sensor (71) and the cylinder top sensor (72) are used to detect the position of the piston (73) in the hydraulic cylinder (7) and are used to control the pressurization or depressurization of the hydraulic cylinder (7).

7. The anti-deflection pipe jacking machine structure according to claim 6, characterized in that: When the piston (73) contacts the cylinder bottom sensor (71), the hydraulic cylinder (7) is in a pressurized state, and the drive motor (5) is in a powered-on state, and the anti-deflection center rod (3) extends toward the front of the soil layer to be excavated.

8. The anti-deflection pipe jacking machine structure according to claim 6, characterized in that: When the piston (73) contacts the cylinder top sensor (72), the hydraulic cylinder (7) is in a pressure relief state, and the drive motor (5) is in a shutdown state, and the anti-deflection center rod (3) is stationary in the soil layer to be excavated.

9. The anti-deflection pipe jacking machine structure according to claim 1, characterized in that: An anti-deflection slide rail (41) is arranged in the anti-deflection pipe section (4), an anti-deflection slide groove (21) is provided on the tunnel boring machine body (2), and the anti-deflection slide rail (41) cooperates with the anti-deflection slide groove (21).

10. The anti-deflection pipe jacking machine structure according to claim 9, characterized in that: The anti-deflection pipe section (4) is also provided with an anti-deflection positioning nail (42), which is arranged on the pipe wall of the anti-deflection pipe section (4) and is inserted into the soil layer for fixation.

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