Shield construction slurry conveying device

By designing a shield construction mud conveying device with a flexible reciprocating screw and a shielding device, the problems of position adjustment and splashing of the existing device in complex environments are solved, and efficient and safe mud conveying is achieved.

CN223317849UActive Publication Date: 2025-09-09CHINA RAILWAY NO 2 ENG GROUP CO LTD +2
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Patent Information

Application Number
CN202521541523.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-23
Publication Date
2025-09-09
Estimated Expiration
2035-07-23

AI Technical Summary

Technical Problem

The existing mud conveying device has a simple structure and lacks flexible adjustment capabilities, making it difficult to adapt to the discharge requirements of different locations in complex construction environments. In addition, mud splashing is likely to occur during the conveying process, causing equipment pollution and inconvenience in operation.

Method used

A shield construction mud conveying device including a reciprocating screw, a connecting plate, a nut, an auger and a shielding device was designed. The reciprocating screw drives the nut to move, thereby achieving precise position adjustment of the discharge device, and the movable baffle buffers the mud flow rate to prevent splashing.

Benefits of technology

It achieves efficient, accurate and safe mud transportation, improves construction efficiency, avoids equipment pollution and clutter in the work area, and improves operational safety and cleaning and maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a shield construction slurry conveying device, which belongs to the technical field of shield construction, and comprises a processing box, a stirring mechanism is arranged in the processing box, the upper surface of the processing box is fixedly connected with a moving device, the moving device is sleeved with a discharging device, a shielding device is arranged in the discharging device, and the shielding device is fixedly connected with the processing box. And the moving device comprises two connecting plates. According to the slurry discharging device, by arranging a matching structure of the reciprocating lead screw, the connecting plate and the nut, reciprocating movement of the discharging device above the processing box is achieved, slurry is stably and continuously conveyed into the processing box from the discharging device in combination with an auger conveying structure, and in the specific operation process, the first motor drives the rotating shaft and the reciprocating lead screw to rotate through a belt; and the nut drives the supporting plate and the conveying pipe to integrally and transversely slide, so that the throwing position of the slurry can be accurately adjusted according to actual construction requirements, and the slurry conveying efficiency and the loading uniformity of the processing box are improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of shield construction, in particular to a shield construction mud conveying device. Background Art

[0002] During shield tunneling, large quantities of mud must be collected, transported, and processed promptly and efficiently to ensure progress and a clean environment. However, existing mud conveying devices often have simple structures, relying solely on fixed conveying channels for mud movement. These devices lack the flexibility to adjust the conveying structure, making it difficult to adapt to the diverse mud discharge requirements of complex construction environments. Furthermore, the mud discharge process often results in splashing, which can easily contaminate equipment and cause operator inconvenience, and there is a lack of effective shielding structures to prevent splashing.

[0003] Based on this, the utility model designs a shield construction mud conveying device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to propose a shield construction mud conveying device in order to solve the problem that most existing mud conveying devices have a single structure, rely only on fixed conveying channels to move mud, lack the ability to flexibly adjust the conveying structure, and are difficult to adapt to the mud discharge needs of different locations in complex construction environments.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A shield construction slurry conveying device, comprising a processing box, a stirring mechanism installed in the processing box, a moving device fixedly connected to the upper surface of the processing box, a discharge device provided on the outer shell of the moving device, and a shielding device installed in the discharge device;

[0007] The moving device includes two connecting plates, which are symmetrically mounted on the upper surface of the processing box, and the same reciprocating screw is rotatably connected in the two connecting plates;

[0008] The discharging device comprises a nut which is sleeved on the reciprocating screw rod.

[0009] As a further description of the above technical solution:

[0010] The moving device also includes a first motor and a rotating shaft. The first motor is fixedly connected to the outside of the processing box. The output end of the first motor is provided with a second reel. The first reel is fixedly connected to the outside of the rotating shaft. The first reel and the second reel are outer-mounted with the same belt. The rotating shaft is fixedly connected to one end of the reciprocating screw rod.

[0011] As a further description of the above technical solution:

[0012] The discharging device also includes a support plate and a conveying pipe, the support plate is fixedly connected to the upper surface of the nut, the two connecting plates are fixedly connected with the same sliding rod, the support plate is fixedly connected to the second motor, the output end of the second motor is fixedly connected to an auger, the conveying pipe is fixedly connected to the upper surface of the support plate, the auger is arranged in the conveying pipe, and a hopper is connected through the conveying pipe.

[0013] As a further description of the above technical solution:

[0014] A through hole is provided in the nut, and a sliding connection is formed between the sliding rod and the through hole.

[0015] As a further description of the above technical solution:

[0016] The output end of the conveying pipe extends outside the supporting plate and is located above the processing box.

[0017] As a further description of the above technical solution:

[0018] The shielding device includes a long rod, which is fixedly connected to the outside of the conveying pipe. Both ends of the long rod are fixedly connected to horizontal plates. A movable shaft is installed in each of the two horizontal plates, and the same baffle is installed in the two movable shafts.

[0019] As a further description of the above technical solution:

[0020] The baffle is rotatably connected to the movable shaft, and the positions of the baffle correspond to those of the delivery pipe.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the utility model, the reciprocating movement of the discharge device above the processing box is realized by setting a matching structure of a reciprocating screw, a connecting plate and a nut. Combined with the auger conveying structure, the mud is stably and continuously conveyed from the discharge device to the processing box. During the specific operation process, the first motor drives the rotating shaft and the reciprocating screw to rotate through the belt, and then drives the nut sleeved on the reciprocating screw to move axially. The nut drives the support plate and the conveying pipe to slide horizontally as a whole, so that the mud delivery position can be accurately adjusted according to actual construction requirements, thereby improving the mud conveying efficiency and the loading uniformity of the processing box.

[0023] 2. In the utility model, a shielding device fixed to the outside of the conveying pipe is provided, which includes a baffle structure connected by a movable shaft. During the mud conveying process, the baffle can be slightly deflected according to the impact force of the mud to buffer the mud flow rate, and automatically return to the shielding position by its own weight or elastic reset mechanism in the absence of external force, effectively preventing the splashing of mud during the conveying or discharge process, avoiding pollution of the equipment surface and clutter in the working area, and improving the overall operational safety and cleaning and maintenance efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional structural diagram of the shield construction slurry conveying device proposed by the utility model;

[0025] Figure 2 The utility model proposes a shield construction mud conveying device Figure 1 A schematic diagram of the structure of the enlarged part A;

[0026] Figure 3 This is a three-dimensional structural diagram of the shield construction mud conveying device and discharging device proposed by the utility model;

[0027] Figure 4 The utility model proposes a shield construction mud conveying device Figure 3 Schematic diagram of the enlarged structure of part B.

[0028] Legend:

[0029] 1. Processing box; 2. Stirring mechanism; 3. Moving device; 301. Connecting plate; 302. Rotating shaft; 303. Reciprocating screw; 304. Sliding rod; 305. First reel; 306. Belt; 307. Second reel; 308. First motor; 4. Discharging device; 401. Nut; 402. Support plate; 403. Second motor; 404. Conveying pipe; 405. Auger; 406. Hopper; 5. Shielding device; 501. Long rod; 502. Horizontal plate; 503. Movable shaft; 504. Baffle. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying 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.

[0031] See also Figures 1-4 ,

[0032] First embodiment:

[0033] The utility model provides a technical solution: a shield construction slurry conveying device, comprising a processing box 1, a stirring mechanism 2 is installed in the processing box 1, a moving device 3 is fixedly connected to the upper surface of the processing box 1, a discharge device 4 is provided on the outer shell of the moving device 3, and a shielding device 5 is installed in the discharge device 4;

[0034] The moving device 3 includes two connecting plates 301, which are symmetrically mounted on the upper surface of the processing box 1. The two connecting plates 301 are rotatably connected to the same reciprocating screw rod 303;

[0035] The discharge device 4 includes a nut 401, which is sleeved on the outside of the reciprocating screw 303. The reciprocating screw 303 cooperates with the nut 401 sleeved on the outside thereof. The nut 401 is driven to slide axially by the screw rotation to realize the linear reciprocating movement of the discharge assembly, thereby flexibly adjusting the position of the mud discharge port, improving the conveying accuracy and adapting to different feeding points.

[0036] Specifically, such as Figure 2-3 As shown, the mobile device 3 also includes a first motor 308 and a rotating shaft 302. The first motor 308 is fixedly connected to the outside of the processing box 1. The output end of the first motor 308 is provided with a second reel 307. The first reel 305 is fixedly connected to the outside of the rotating shaft 302. The first reel 305 and the second reel 307 are provided with the same belt 306. The rotating shaft 302 is fixedly connected to one end of the reciprocating screw rod 303. The discharge device 4 also includes a support plate 402 and a conveying pipe 404. The support plate 402 is fixedly connected to the upper surface of the nut 401. The two connecting plates 301 are fixedly connected to The same slide bar 304 is fixedly connected to a second motor 403 on a support plate 402, an auger 405 is fixedly connected to the output end of the second motor 403, a delivery pipe 404 is fixedly connected to the upper surface of the support plate 402, the auger 405 is arranged in the delivery pipe 404, a hopper 406 is connected through the delivery pipe 404, and the auger 405 is arranged inside the delivery pipe 404 that passes through the hopper 406. During the rotation process, the mud in the hopper 406 can be continuously pushed out, effectively realizing the continuous transportation of the mud from the input port to the discharge port, reducing retention, and improving circulation efficiency;

[0037] A through hole is provided in the nut 401, and a sliding connection is formed between the slide rod 304 and the through hole. The output end of the delivery pipe 404 extends to the outside of the support plate 402 and is located above the processing box 1. The slide rod 304 is passed through the through hole in the nut 401, and a sliding connection structure is formed between the two, which provides stable guidance during the movement of the nut 401, effectively preventing the nut 401 from swinging or rotating, and improving the stability and reliability of the movement process of the discharge component.

[0038] During operation, the reciprocating movement of the discharge device 4 above the processing box 1 is realized by setting the matching structure of the reciprocating screw 303, the connecting plate 301 and the nut 401, and the mud is stably and continuously transported from the discharge device 4 to the processing box 1 in combination with the conveying structure of the auger 405. During the specific operation process, the first motor 308 drives the rotating shaft 302 and the reciprocating screw 303 to rotate through the belt 306, and then drives the nut 401 sleeved on the reciprocating screw 303 to move axially, and the nut 401 drives the support plate 402 and the conveying pipe 404 to slide horizontally as a whole, so that the mud delivery position can be accurately adjusted according to actual construction needs, thereby improving the mud conveying efficiency and the loading uniformity of the processing box 1.

[0039] Second embodiment:

[0040] Specifically, such as Figure 4 As shown, the shielding device 5 includes a long rod 501, which is fixedly connected to the outside of the conveying pipe 404. Both ends of the long rod 501 are fixedly connected to horizontal plates 502. A movable shaft 503 is installed in each of the two horizontal plates 502. The same baffle 504 is installed in the two movable shafts 503. A rotational connection is formed between the baffle 504 and the movable shaft 503, and the position of the baffle 504 corresponds to that of the conveying pipe 404.

[0041] During operation, a shielding device 5 is set to be fixed on the outside of the conveying pipe 404, which includes a baffle 504 structure connected by a movable shaft 503. During the mud conveying process, the baffle 504 can be slightly deflected according to the impact force of the mud to buffer the mud flow rate, and automatically return to the shielding position by its own weight or elastic reset mechanism in the absence of external force, effectively preventing the splashing of mud during the conveying or discharge process, avoiding pollution of the equipment surface and clutter in the working area, and improving the overall operational safety and cleaning and maintenance efficiency of the device.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shield construction slurry conveying device, comprising a processing box (1), characterized in that: A stirring mechanism (2) is installed in the processing box (1), a moving device (3) is fixedly connected to the upper surface of the processing box (1), a discharge device (4) is provided on the outer shell of the moving device (3), and a shielding device (5) is installed in the discharge device (4); The moving device (3) comprises two connecting plates (301), the two connecting plates (301) are symmetrically mounted on the upper surface of the processing box (1), and the same reciprocating screw rod (303) is rotatably connected in the two connecting plates (301); The discharge device (4) comprises a nut (401), and the nut (401) is sleeved outside the reciprocating screw (303).

2. The shield construction slurry conveying device according to claim 1, characterized in that: The moving device (3) further comprises a first motor (308) and a rotating shaft (302), wherein the first motor (308) is fixedly connected to the outside of the processing box (1), and the output end of the first motor (308) is provided with a second reel (307), and the rotating shaft (302) is fixedly connected to the outside of the first reel (305), and the first reel (305) and the second reel (307) are provided with a same belt (306) on their outer sleeves, and the rotating shaft (302) is fixedly connected to one end of the reciprocating screw rod (303).

3. The shield construction slurry conveying device according to claim 1, characterized in that: The discharging device (4) further comprises a support plate (402) and a conveying pipe (404), wherein the support plate (402) is fixedly connected to the upper surface of the nut (401), and the two connecting plates (301) are fixedly connected with a same sliding rod (304), and the support plate (402) is fixedly connected with a second motor (403), and the output end of the second motor (403) is fixedly connected with an auger (405), and the conveying pipe (404) is fixedly connected to the upper surface of the support plate (402), and the auger (405) is arranged in the conveying pipe (404), and the conveying pipe (404) is connected through a hopper (406).

4. The shield construction slurry conveying device according to claim 3, characterized in that: A through hole is provided in the nut (401), and a sliding connection is formed between the sliding rod (304) and the through hole.

5. The shield construction slurry conveying device according to claim 3, characterized in that: The output end of the delivery pipe (404) extends outside the support plate (402) and is located above the processing box (1).

6. The shield construction slurry conveying device according to claim 3, characterized in that: The shielding device (5) comprises a long rod (501), the long rod (501) being fixedly connected to the outside of the delivery pipe (404), both ends of the long rod (501) being fixedly connected to a transverse plate (502), a movable shaft (503) being installed in each of the two transverse plates (502), and a same baffle (504) being installed in each of the two movable shafts (503).

7. The shield construction slurry conveying device according to claim 6, characterized in that: The baffle (504) is rotatably connected to the movable shaft (503), and the positions of the baffle (504) and the delivery pipe (404) correspond to each other.