Heading machine capable of simultaneously carrying out geological sampling

Abstract

The utility model discloses a heading machine capable of simultaneously sampling geology, which comprises a cutting head and a screw rod, the cutting head comprises a cutterhead, a plurality of tunnel cutting tools and a discharge port, the plurality of tunnel cutting tools and the discharge port are distributed on the cutterhead, the cutterhead is provided with a through hole, and a plurality of sampling cutting tools are arranged on the outer side of the through hole; the screw rod is connected with the cutter head and is provided with a central hole, and the central hole is communicated with the through hole in the cutter head. The sampling cutting tool is arranged on the cutting head, geological sampling is carried out while tunneling is carried out, geological samples directly enter the center hole of the screw rod through the through hole and are stored in the center hole, after tunneling is completed, the screw rod is pulled out, the geological samples can be rapidly obtained, tunneling and geological sampling are carried out at the same time, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a tunneling machine, in particular to a tunneling machine capable of simultaneously performing geological sampling, and belongs to the technical field of underground construction equipment. Background Art

[0002] In order to meet the needs of geological exploration and underground engineering construction, tunnel boring machines also need to conduct geological sampling during the actual construction process. When existing large tunnel boring machines are in operation, due to their large structure, construction workers can directly enter the machine and reach the front of the tunnel for on-site sampling. However, when the diameter of the tunnel under construction is reduced to a certain size, especially for construction such as small underground pipeline excavation, due to space limitations and safety requirements, construction workers cannot enter the tunnel and conduct on-site sampling, and thus cannot grasp the real-time geological conditions during the construction process, which cannot meet the needs of actual construction. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a tunnel boring machine which can perform geological sampling while normally excavating a tunnel.

[0004] In order to solve the above technical problems, the utility model provides a tunnel boring machine that can perform geological sampling simultaneously, including a cutting head and a spiral rod, the cutting head includes a cutter disc, a plurality of tunnel cutting tools and a discharge port distributed on the cutter disc, the cutter disc is provided with a through hole, and a plurality of sampling cutting tools are provided on the outside of the through hole; the spiral rod is connected to the cutter disc, and the spiral rod is provided with a center hole, and the center hole is connected to the through hole on the cutter disc.

[0005] In the utility model, the through hole is located in the middle of the cutter disc.

[0006] In the utility model, the spiral rod is composed of multiple connected sections, and adjacent spiral rods are connected by a quick connection mechanism.

[0007] In the utility model, the quick connection mechanism includes a sleeve and a pressure ring, the sleeve is provided with an opening matched with the shape of the end of the spiral rod; the pressure ring is detachably connected to the sleeve; when the end of the spiral rod is inserted into the opening and the pressure ring is connected to the sleeve, the pressure ring limits the axial movement of the spiral rod.

[0008] In the utility model, the pressure ring is assembled from two semicircular rings.

[0009] The beneficial effects of the utility model are as follows: (1) a sampling and cutting tool is arranged on the cutting head, and geological sampling is carried out while tunneling. The geological sample directly enters the center hole of the spiral rod through the through hole and is stored in the center hole. After tunneling is completed, the spiral rod can be pulled out to obtain a quick geological sample, so that tunneling and geological sampling can be carried out simultaneously, which greatly improves the work efficiency; (2) the disadvantage that construction personnel cannot carry out on-site sampling at the front of the tunnel in small-sized tunneling operations is overcome, and the construction cost is greatly reduced; at the same time, the utility model can be directly applied to an operating environment where the geological conditions are complex (such as the presence of toxic and harmful gases) and manual sampling cannot be carried out, thereby improving the safety factor of construction; (3) the through hole is located in the middle of the cutter head, which can improve the efficiency of geological sampling and the representativeness of the sample; (4) the spiral rod is composed of multiple sections, which can facilitate actual construction and extraction of geological samples; (5) the quick connection mechanism can realize the quick connection of adjacent spiral rods, thereby improving the construction efficiency of tunneling; (6) the pressure ring is assembled from two semicircular rings, which is convenient for disassembly and assembly while meeting the requirements for applying strength to the spiral rod, thereby ensuring the reliability of the entry and exit of the spiral rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the tunnel boring machine that can simultaneously perform geological sampling according to the utility model;

[0011] Figure 2 This is a schematic diagram of the assembly of a tunnel boring machine capable of simultaneously performing geological sampling according to the utility model;

[0012] Figure 3 Schematic diagram of the cutting head structure Figure 1 ;

[0013] Figure 4 Schematic diagram of the cutting head structure Figure 2 ;

[0014] Figure 5 It is a schematic diagram of the spiral rod structure;

[0015] Figure 6 A schematic diagram of the structure of a tunnel boring machine in another embodiment;

[0016] Figure 7 It is a schematic diagram of the structure of the connecting sleeve assembly. DETAILED DESCRIPTION

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1 and 2As shown, the tunnel boring machine capable of simultaneously performing geological sampling of the present invention comprises a power mechanism 105, a track 106, a barrel 103, a screw rod 104, a cutting head 101 and an orienting mechanism 102. In actual construction, the track 106 is fixed on the ground, and the power mechanism 105 is assembled on the track 106 and reciprocates along the track 106.

[0019] The power mechanism 105 provides the rotational power and propulsion power required by the tunnel boring machine. In this embodiment, the engine or hydraulic motor in the power mechanism 105 provides the rotational power, and the oil cylinder provides the propulsion power. The power mechanism 105 is a conventional device in the prior art and will not be described in detail in this embodiment.

[0020] One end of the spiral rod 104 is connected to the cutting head 101 , and the other end is connected to the power mechanism 105 . The spiral rod 104 is disposed in the cylinder 103 .

[0021] The cutting head 101 is located at the front end of the tunnel boring machine. An orientation mechanism 102 is provided between the cutting head 101 and the cylinder 103 . The orientation mechanism 102 is used to maintain or adjust the tunneling direction of the cutting head 101 .

[0022] During operation, the power mechanism 105 can drive the screw rod 104 to rotate and can advance the screw rod 104 and the barrel 103. Since the cutting head 101 is connected to the rotating rod 104, it rotates and advances with the rotating rod 104. The orientation mechanism 102 and the barrel 103 are connected together and advanced by the power mechanism 105. The orientation mechanism 102 is responsible for adjusting the direction of the cutting head 101.

[0023] like Figure 3 and 4 As shown, the cutting head includes a cutter disc 1011, on which a plurality of tunnel cutting tools 1012 are installed, and a plurality of discharge ports 1014 are provided. The tunnel cutting tools 1012 cut off the broken materials, which enter the cylinder through the discharge port 1014 and are brought out to the tunnel port by the propeller of the spiral rod. A through hole 1015 is provided in the middle of the cutter disc 1011, and a plurality of sampling cutting tools 1013 are installed on the periphery of the through hole 1015. The sampling cutting tools 1013 are arranged in a ring shape. The through hole 1015 is connected to the central hole of the rotating rod 104. During the working process, the continuous whole sample cut by the sampling cutting tool 1013 enters the central hole of the spiral rod through the through hole 1015 for storage.

[0024] like Figure 5As shown, a central hole 1042 is provided on the rod body 1041 of the spiral rod 104, and geological samples such as soil or rock can pass through and be stored in the central hole 1042. In this embodiment, the two ends of the rod body 1041 of the spiral rod 104 are external hexagons, one end is inserted into the cutting head, and the other end is inserted into the power mechanism, or connected to another spiral rod by a connecting sleeve assembly. The spiral rod 104 is used to transmit rotational power and propulsion, discharge the broken materials cut by the tunnel cutting tool, and store geological samples through the central hole 1042. As the cutting head moves forward, the geological sampling sample enters the central hole 1042 of the spiral rod 104. When the excavation work is completed, the spiral rod 104 is pulled out and the geological sampling sample is taken out, thereby completing the excavation and sampling of the small diameter tunnel at the same time.

[0025] like Figure 6 As shown, in another embodiment, in order to meet the needs of different excavation lengths, the number of screw rods 104 and barrels 103 can be increased, that is, the power mechanism is retracted, and a screw rod 104 and a barrel 103 are added between the first screw rod 104 and the power mechanism. In this embodiment, two screw rods 104 and barrels 103 are used, and the two screw rods are connected by a connecting sleeve assembly 107.

[0026] like Figure 7 As shown, the connecting sleeve assembly 107 includes a sleeve body 1071, and pressure rings 1072 are respectively provided on both sides of the sleeve body 1071. The pressure rings 1072 are detachably connected to the sleeve body 1071 by bolts (not shown in the figure). An opening 1073 is opened in the middle of the sleeve body 1071, and the shape of the opening 1073 is adapted to the shape of the end of the spiral rod body. In this embodiment, the shape of the end of the spiral rod body and the shape of the opening 1073 are hexagonal. The pressure ring 1072 is assembled from two semicircular rings. After the end of the spiral rod body is inserted into the opening 1073 on the sleeve body 1071, the two semicircular rings are assembled to form the pressure ring 1072 and fixedly connected to the sleeve body 1071 by bolts, so as to limit the axial movement of the spiral rod, thereby realizing the connection and communication of adjacent spiral rods.

[0027] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0028] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A tunnel boring machine capable of simultaneously performing geological sampling, comprising a cutting head and a spiral rod, wherein the cutting head comprises a cutter disc, a plurality of tunnel cutting tools and a discharge port distributed on the cutter disc, characterized in that: The cutter disc is provided with a through hole, and a plurality of sampling and cutting knives are arranged on the outside of the through hole; the spiral rod is connected to the cutter disc, and the spiral rod is provided with a center hole, which is connected with the through hole on the cutter disc.

2. The tunnel boring machine capable of simultaneously performing geological sampling according to claim 1, characterized in that: The through hole is located in the middle of the cutter disc.

3. The tunnel boring machine capable of simultaneously performing geological sampling according to claim 1 or 2, characterized in that: The spiral rod is composed of multiple connected sections, and adjacent spiral rods are connected by a quick connection mechanism.

4. The tunnel boring machine capable of simultaneously performing geological sampling according to claim 3 is characterized in that: The quick connection mechanism comprises a sleeve body and a pressure ring, wherein the sleeve body is provided with an opening matching the shape of the end of the spiral rod body; The pressure ring is detachably connected to the sleeve body; When the end of the spiral rod body is inserted into the opening and the pressing ring is connected to the sleeve body, the pressing ring limits the axial movement of the spiral rod.

5. The tunnel boring machine capable of simultaneously performing geological sampling according to claim 4, characterized in that: The pressure ring is assembled from two semicircular rings.

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