A new type of material conveying and stirring device for subway construction shield machine

Abstract

This utility model discloses a novel material conveying and mixing device for a tunnel boring machine (TBM) in subway construction, relating to the field of subway construction technology. It includes a fixed frame, inside which is a mixing mechanism and a feeding mechanism. A conveyor is located below the mixing mechanism. A controller is installed on the inner bottom wall of the fixed frame, and a display is mounted on the upper surface of the controller. A fixed plate is fixedly connected to the inner side wall of the fixed frame. The mixing mechanism includes a mixing tank with a through hole on its upper surface. A drive motor is installed on the upper surface of the mixing tank, and a spiral mixing shaft is installed at the output end of the drive motor. This novel material conveying and mixing device for a subway construction TBM utilizes a heating wire to heat the inside of the mixing tank, improving the material mixing effect. Through the cooperation of a conveying pump and connecting pipe, the material inside the mixing tank can be extracted and conveyed, improving the material conveying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of subway construction technology, specifically a new type of material conveying and mixing device for subway construction tunnel boring machines. Background Technology

[0002] Tunnel boring machines (TBMs) have become an important part of subway construction. In order to continuously optimize the performance of TBM construction, soil improvement is essential. Different soil conditioners are often used for different strata. In TBM construction, the soil conditioners are generally foam and bentonite. However, for some special strata, such as water-rich strata, silty sand strata, and sandy strata, new polymer conditioners have been gradually tried and have achieved certain results.

[0003] Chinese Patent CN213101733U discloses a novel material conveying and mixing device for a tunnel boring machine (TBM) used in subway construction. The device includes a frame with a horizontally mounted support fixed inside. The frame and support form an E-shape. A water tank and a polymer storage tank are mounted on the top of the support. A first conveying device is connected to the bottom of the water tank via a conduit, and a second conveying device is connected to the bottom of the polymer storage tank via a conduit. A crossbar connects the first and second conveying devices. However, the material conveying and mixing device for a TBM in the aforementioned patent cannot heat the material during mixing, resulting in insufficient mixing and affecting the conveying rate. Therefore, we propose a novel material conveying and mixing device for a TBM used in subway construction to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a new type of material conveying and mixing device for subway construction tunnel boring machines, so as to solve the problems raised in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel material conveying and mixing device for a subway construction tunnel boring machine, comprising a fixed frame, a mixing mechanism inside the fixed frame, a material feeding mechanism inside the fixed frame, a material conveyor below the mixing mechanism, a controller installed on the inner bottom wall of the fixed frame, a display on the upper surface of the controller, and a fixed plate fixedly connected to the inner side wall of the fixed frame.

[0006] Preferably, the stirring mechanism includes a stirring tank, the upper surface of which has a through hole, a drive motor is mounted on the upper surface of the stirring tank, and a spiral stirring shaft is mounted on the output end of the drive motor.

[0007] Preferably, three sets of positioning rods are fixedly connected to the outer surface of the spiral stirring shaft, and a stirring crank is installed inside each set of positioning rods.

[0008] Preferably, a fixing rod is fixedly connected to the bottom end of the spiral stirring shaft, and stirring rods arranged at equal intervals are fixedly connected to the outer surface of the fixing rod. A cavity is opened inside the stirring tank, and a heating wire is provided inside the cavity.

[0009] Preferably, the feeder includes a feed pump, the input end of which is equipped with a connecting pipe, the top end of which is connected to the bottom end of the mixing tank, and the output end of which is equipped with a connecting ring.

[0010] Preferably, the feeding mechanism includes a feeding tank, the bottom end of which is fixedly connected to a fixing pipe, the bottom end of which is connected to the upper surface of the mixing tank, the bottom end of which is provided with a control valve, the input end of which is equipped with a connecting ring, and the left side of the fixing plate is connected to the outer surface of the feeding tank.

[0011] Preferably, two positioning plates are fixedly connected to the right side of the fixed frame, and mounting plates are fixedly connected to the right side of each of the two positioning plates. Symmetrical mounting holes are opened on the right side of each of the two mounting plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This application utilizes the combination of a feeding tank, a fixed pipe, and a control valve to facilitate the feeding of materials into the mixing tank. A drive motor can rotate a spiral stirring shaft, and the combination of the spiral stirring shaft and the stirring crank can mix the materials inside the mixing tank. The combination of the fixed rod and the stirring rod can stir the materials at the bottom of the mixing tank. A heating wire can be used to heat the inside of the mixing tank, improving the mixing effect. The combination of a feed pump and a connecting pipe can extract and transport the materials inside the mixing tank, improving the material conveying efficiency. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of a novel material conveying and mixing device for a subway construction tunnel boring machine according to the present invention.

[0015] Figure 2 This is a front sectional view of the mixing tank in a novel material conveying and mixing device for a subway tunnel boring machine according to this utility model.

[0016] Figure 3 This is a top sectional view of the mixing tank in a novel material conveying and mixing device for a subway tunnel boring machine according to this utility model.

[0017] Figure 4 This is a rear-view three-dimensional structural diagram of a novel material conveying and mixing device for a tunnel boring machine used in subway construction, according to this utility model.

[0018] The diagram shows the following components: 1. Fixed frame; 2. Stirring mechanism; 201. Stirring tank; 202. Through hole; 203. Drive motor; 204. Spiral stirring shaft; 205. Positioning rod; 206. Stirring crank; 207. Cavity; 208. Heating wire; 209. Fixed rod; 210. Stirring rod; 3. Feeding mechanism; 301. Feeding tank; 302. Connecting ring; 303. Fixed pipe; 304. Control valve; 4. Controller; 5. Display; 6. Feeder; 601. Connecting pipe; 602. Feed pump; 603. Connecting ring; 7. Positioning plate; 8. Mounting plate; 9. Mounting hole; 10. Fixed plate. Detailed Implementation

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms installation, connection, and linking should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1-4 As shown, this utility model provides a technical solution for a novel material conveying and mixing device for a subway construction tunnel boring machine. It includes a fixed frame 1, a mixing mechanism 2 inside the fixed frame 1, a material feeding mechanism 3 inside the fixed frame 1, a material conveyor 6 below the mixing mechanism 2, a controller 4 installed on the inner bottom wall of the fixed frame 1, a display 5 on the upper surface of the controller 4, a fixed plate 10 fixedly connected to the inner side wall of the fixed frame 1, two positioning plates 7 fixedly connected to the right side of the fixed frame 1, and mounting plates 8 fixedly connected to the right side of each of the two positioning plates 7. Symmetrical mounting holes 9 are provided on the right side of each of the two mounting plates 8. The controller 4 and the display 5 facilitate the control of the device by the operator, and the mounting plates 8 and the mounting holes 9 facilitate the installation and positioning of the device by the operator.

[0021] The stirring mechanism 2 includes a stirring tank 201. A through hole 202 is provided on the upper surface of the stirring tank 201. A drive motor 203 is mounted on the upper surface of the stirring tank 201. A spiral stirring shaft 204 is mounted on the output end of the drive motor 203. Three sets of positioning rods 205 are fixedly connected to the outer surface of the spiral stirring shaft 204. A stirring crank 206 is installed inside each set of positioning rods 205. A fixing rod 209 is fixedly connected to the bottom end of the spiral stirring shaft 204. Equally spaced stirring rods 21 are fixedly connected to the outer surface of the fixing rod 209. The mixing tank 201 has an internal cavity 207, and a heating wire 208 is installed inside the cavity 207. The drive motor 203 can drive the spiral stirring shaft 204 to rotate. The spiral stirring shaft 204 and the stirring crank 206 can stir and mix the materials inside the mixing tank 201. The fixed rod 209 and the stirring rod 210 can stir the materials at the bottom of the mixing tank 201. The heating wire 208 can heat the inside of the mixing tank 201 to improve the mixing effect of the materials.

[0022] The feeder 6 includes a feed pump 602, with a connecting pipe 601 installed at the input end of the feed pump 602. The top end of the connecting pipe 601 is connected to the bottom end of the mixing tank 201. A connecting ring 603 is installed at the output end of the feed pump 602. The feeding mechanism 3 includes a feeding tank 301, with a fixed pipe 303 fixedly connected to the bottom end of the feeding tank 301. The bottom end of the fixed pipe 303 is connected to the upper surface of the mixing tank 201. A control valve 304 is provided at the bottom end of the fixed pipe 303. A connecting ring 302 is installed at the input end of the feeding tank 301. The left side of the fixed plate 10 is connected to the outer surface of the feeding tank 301. Through the cooperation of the feed pump 602 and the connecting pipe 601, the material inside the mixing tank 201 can be extracted and transported, improving the material transport efficiency. The cooperation of the feeding tank 301, the fixed pipe 303, and the control valve 304 facilitates the feeding of material into the mixing tank 201.

[0023] The working principle of this utility model is as follows:

[0024] In use, first connect the device to the corresponding power supply. Then, use the mounting plate 8 and mounting holes 9 to install and position the device. Next, control the device through the controller 4 and display 5. Then, use the feeding tank 301, fixed pipe 303 and control valve 304 to facilitate feeding materials into the mixing tank 201. The drive motor 203 can drive the spiral stirring shaft 204 to rotate. The spiral stirring shaft 204 and stirring crank 206 can stir and mix the materials inside the mixing tank 201. The fixed rod 209 and stirring rod 210 can stir the materials at the bottom of the mixing tank 201. The heating wire 208 can heat the inside of the mixing tank 201 to improve the mixing effect. Then, through the cooperation of the conveying pump 602 and connecting pipe 601, the materials inside the mixing tank 201 can be extracted and conveyed to improve the material conveying efficiency.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel material conveying and mixing device for a tunnel boring machine used in subway construction, comprising a fixed frame (1), characterized in that: The fixed frame (1) is equipped with a stirring mechanism (2) and a feeding mechanism (3). A feeder (6) is located below the stirring mechanism (2). A controller (4) is installed on the inner bottom wall of the fixed frame (1). A display (5) is located on the upper surface of the controller (4). A fixing plate (10) is fixedly connected to the inner side wall of the fixed frame (1). The stirring mechanism (2) includes a stirring tank (201). A through hole (202) is opened on the upper surface of the stirring tank (201). A drive motor (203) is installed on the upper surface of the stirring tank (201). The output end of the drive motor (203) is equipped with a spiral stirring shaft (204). Three sets of positioning rods (205) are fixedly connected to the outer surface of the spiral stirring shaft (204). A stirring crank (206) is installed inside each set of positioning rods (205). A fixing rod (209) is fixedly connected to the bottom end of the spiral stirring shaft (204). Stirring rods (210) arranged at equal intervals are fixedly connected to the outer surface of the fixing rod (209). A cavity (207) is opened inside the stirring tank (201). A heating wire (208) is provided inside the cavity (207).

2. The novel material conveying and mixing device for a tunnel boring machine in subway construction according to claim 1, characterized in that: The feeder (6) includes a feed pump (602), the input end of which is equipped with a connecting pipe (601), the top end of which is connected to the bottom end of the mixing tank (201), and the output end of which is equipped with a connecting ring (603).

3. The novel material conveying and mixing device for a tunnel boring machine in subway construction according to claim 1, characterized in that: The feeding mechanism (3) includes a feeding tank (301), the bottom end of which is fixedly connected to a fixed pipe (303), the bottom end of which is connected to the upper surface of the mixing tank (201), the bottom end of which is provided with a control valve (304), the input end of which is equipped with a connecting ring (302), and the left side of the fixed plate (10) is connected to the outer surface of the feeding tank (301).

4. The novel material conveying and mixing device for a tunnel boring machine in subway construction according to claim 1, characterized in that: Two positioning plates (7) are fixedly connected to the right side of the fixed frame (1), and mounting plates (8) are fixedly connected to the right side of the two positioning plates (7). The right side of the two mounting plates (8) is provided with symmetrical mounting holes (9).

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