A kind of high cohesive soil layer forced stirring system mud scraping device

Abstract

The utility model discloses a kind of mud scraping devices of high viscidity soil layer forced mixing system, it is related to mixing device technical field, the single-shaft mixing drill bit in prior art can solve the problem that viscidity soil layer is easy to stick on drill tool and not easy to fall off after stirring in high viscidity soil layer, leading to the problem of high stirring power consumption, stirring quality reduces.The utility model embodiment discloses a kind of mud scraping devices of high viscidity soil layer forced mixing system, including the mud scraping frame of being equipped with on stirring vane and being slidably connected with it, and the connecting rod of one end rotationally connected in mud scraping frame bottom, the other end for rotationally connected on drill head main body;Further include transmission assembly and be used for driving transmission assembly to pull or push mud scraping frame and slide on stirring vane driving structure, the output end of transmission assembly is transmission connection with driving structure one end, and the other end is rotationally connected with the top of several mud scraping frames.

Description

Technical Field

[0001] This utility model relates to the field of mixing device technology, specifically to a sludge scraping device for a forced mixing system for high-viscosity soil layers. Background Technology

[0002] Deep mixing is a construction method that uses deep mixing machinery to forcibly mix powder or slurry materials with soil, thereby producing a physical-chemical reaction in the soil to form a reinforced body with integrity, water stability and a certain strength, which in turn forms a composite foundation, seepage barrier or retaining wall with the original soil.

[0003] Deep mixing is typically suitable for soil layers with high plasticity and high viscosity, such as cohesive soil, silt, and loess. However, when performing deep mixing, the cohesive soil tends to adhere to the mixing drill bit and its mixing blades in existing mixing devices. This increases the power consumption of the entire mixing device and may result in insufficient mixing, leading to lower-than-expected mixing quality.

[0004] Based on the above background, the applicant has designed a scraping device for a forced mixing system of high-viscosity soil to solve the above problems, and hereby submits this application. Summary of the Invention

[0005] The purpose of this application is to provide a scraping device for a forced mixing system for high-viscosity soil layers, which solves the problem in the prior art where, when a single-axis mixing drill bit is used to mix high-viscosity soil layers, the cohesive soil layer easily adheres to the drill bit and is difficult to remove, resulting in increased mixing power consumption and reduced mixing quality.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0007] This application provides a scraping device for a forced mixing system for high-viscosity soil layers, including several scraping frames sleeved on and slidably connected to the mixing blades, and several connecting rods with one end rotatably connected to the bottom of the scraping frame and the other end rotatably connected to the drill bit body.

[0008] It also includes a transmission assembly and a drive structure for driving the transmission assembly to pull or push the scraper frame to slide on the stirring blade. One end of the transmission assembly is connected to the output end of the drive structure, and the other end is rotatably connected to the top of several scraper frames.

[0009] Optionally, the transmission assembly includes a plurality of transmission rods, as well as a transmission cage and a drive ring for mounting on the drill pipe;

[0010] One end of several of the transmission rods is rotatably connected to the top of the scraper frame, and the other end is rotatably connected to the bottom of the transmission cage. The top of the transmission cage is rotatably connected to the bottom of the drive ring.

[0011] The drive ring is fixedly connected to the output end of the drive structure.

[0012] Optionally, the transmission cage includes a first transmission ring and a second transmission rod arranged coaxially, as well as a plurality of connecting rods, the two ends of which are fixedly connected to the first transmission ring and the second transmission ring, respectively.

[0013] Several of the aforementioned transmission rods are rotatably connected to the first transmission rod, and the bottom of the drive ring is rotatably connected to the top of the second transmission ring.

[0014] Optionally, the drive structure is a hydraulic drive cylinder that is inverted and mounted on the frame, with the output shaft of the hydraulic drive cylinder fixedly connected to the drive ring.

[0015] Optionally, the drive ring is provided with two connecting platforms that are arranged in opposite directions;

[0016] The hydraulic drive cylinder is provided in two parts, and the output shafts of the two hydraulic drive cylinders are respectively fixedly connected to two connecting platforms on the drive ring.

[0017] Optionally, the sludge scraper frame includes a first scraper and a second scraper arranged parallel to each other, with the top and bottom of the first scraper and the second scraper fixedly connected, and a sludge scraping gap for accommodating the stirring blades between the first scraper and the second scraper.

[0018] Optionally, the sides of the scraper frame are also provided with several arc-shaped scraper rods, the inner side of which is adapted to the shape of the outer circumferential wall of the drill bit body.

[0019] When the mud scraper frame is fitted onto the mixing blade, the center of the arc corresponding to the inner side of the arc-shaped mud scraper rod coincides with the central axis of the drill bit body.

[0020] Optionally, the length of the arc-shaped scraper is less than half the distance between the mixing blades.

[0021] Beneficial effects of the utility model:

[0022] This application, by setting a scraper frame fitted on the mixing blades, and a drive structure consisting of a connecting rod, a transmission assembly, and a drive transmission assembly to push and pull the scraper frame, enables the drill bit body and mixing blades to be mixed in deep, highly viscous soil layers. After the highly viscous soil adheres to the mixing blades, the drive structure can promptly drive the transmission assembly, causing the transmission assembly to push or pull the scraper frame to slide on the mixing blades. This scrapes off the highly viscous soil adhering to the mixing blades, thereby increasing mixing power consumption and reducing mixing quality, effectively solving the problems of existing technologies.

[0023] In addition, since the scraper frame in this application rotates with the drill bit body and the mixing blades, the scraper frame itself can also play a certain mixing role, thereby improving the mixing effect between the cohesive soil layer and the added materials. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0025] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0026] Explanation of reference numerals in the attached drawings: 1-Drill bit body, 11-Agitating blade, 2-Scraper frame, 21-First scraper, 22-Second scraper, 23-Scraper gap, 3-Transmission assembly, 31-Transmission rod, 32-Transmission cage, 321-First transmission ring, 322-Second transmission ring, 323-Connecting rod, 33-Drive ring, 331-Connecting platform, 4-Connecting rod, 5-Drill rod, 6-Hydraulic drive cylinder, 7-Frame, 8-Arc-shaped scraper rod. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection 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.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Example 1:

[0032] like Figure 1 As shown, this embodiment provides a scraping device for a forced mixing system of high-viscosity soil, including several scraping frames 2 sleeved on and slidably connected to the mixing blades 11, and several connecting rods 4 with one end rotatably connected to the bottom of the scraping frame 2 and the other end rotatably connected to the drill bit body 1.

[0033] It also includes a transmission assembly 3 and a drive structure for driving the transmission assembly 3 to pull or push the scraper frame 2 to slide on the stirring blade 11. One end of the transmission assembly 3 is connected to the output end of the drive structure, and the other end is rotatably connected to the top of several scraper frames 2.

[0034] This embodiment, by setting a scraper frame 2 sleeved on the mixing blade 11, and a driving structure consisting of a connecting rod 4, a transmission component 3, and a drive transmission component 3 to push and pull the scraper frame 2, enables the high-viscosity soil to adhere to the mixing blade 11 when the drill bit body 1 and the mixing blade 11 are mixing in a deep high-viscosity soil layer. The transmission component 3 can then be driven in time by the drive structure to push or pull the scraper frame 2 to slide on the mixing blade 11, thereby scraping off the high-viscosity soil adhering to the mixing blade 11. This effectively solves the problems of the prior art by reducing the mixing power consumption and lowering the mixing quality.

[0035] In addition, since the scraper frame 2 in this embodiment rotates with the drill bit body 1 and the mixing blade 11, the scraper frame 2 itself can also play a certain mixing role, thereby improving the mixing effect between the cohesive soil layer and the added materials.

[0036] In this embodiment, the transmission assembly 3 includes a plurality of transmission rods 31, as well as a transmission cage 32 and a drive ring 33 for mounting on the drill rod 5;

[0037] One end of each of the aforementioned transmission rods 31 is rotatably connected to the top of the scraper frame 2, and the other end is rotatably connected to the bottom of the transmission cage 32. The top of the transmission cage 32 is rotatably connected to the bottom of the drive ring 33.

[0038] The drive ring 33 is fixedly connected to the output end of the drive structure.

[0039] In this embodiment, the transmission component 3 can simultaneously drive multiple transmission rods 31 using the transmission cage 32, thereby enabling multiple transmission rods 31 to simultaneously drive multiple scraper frames 2 to perform scraping actions, thus improving the scraping effect. The drive structure in this embodiment can periodically drive the transmission component 3, causing the scraper frames 2 to periodically slide back and forth on the mixing blades 11 to scrape mud, preventing sticky soil from adhering to the mixing blades 11 for extended periods.

[0040] In this embodiment, the transmission cage 32 includes a first transmission ring 321 and a second transmission rod 31 arranged coaxially, as well as a plurality of connecting rods 323, the two ends of which are fixedly connected to the first transmission ring 321 and the second transmission ring 322 respectively.

[0041] Several of the aforementioned transmission rods 31 are rotatably connected to the first transmission rod 31, and the bottom of the drive ring 33 is rotatably connected to the top of the second transmission ring 322. In this embodiment, the first transmission ring 321, the second transmission rod 31, and the connecting rod 323 are provided to reduce the weight of the entire transmission cage 32 and to prevent a large amount of cohesive soil from entering and remaining between the transmission cage 32 and the drill rod 5.

[0042] In this embodiment, the driving structure is a hydraulic drive cylinder 6 that is inverted and mounted on the frame 7, and the output shaft of the hydraulic drive cylinder 6 is fixedly connected to the drive ring 33.

[0043] In this embodiment, the drive ring 33 is provided with two oppositely arranged connecting platforms 331;

[0044] Two hydraulic drive cylinders 6 are provided, and the output shafts of the two hydraulic drive cylinders 6 are fixedly connected to the two connecting platforms 331 on the drive ring 33 respectively. The provision of two hydraulic drive cylinders 6 can make the force on the drive ring 33 more stable.

[0045] In this embodiment, the sludge scraping frame 2 includes a first scraper 21 and a second scraper 22 arranged parallel to each other. The top and bottom of the first scraper 21 and the second scraper 22 are fixedly connected. There is a sludge scraping gap 23 between the first scraper 21 and the second scraper 22 for accommodating the stirring blade 11. In this embodiment, the sludge scraping gap 23 has a rectangular cross-sectional shape in both the transverse and longitudinal directions.

[0046] Example 2:

[0047] like Figure 2 As shown, in this embodiment, the two sides of the mud scraper frame 2 are also provided with a plurality of arc-shaped mud scraper rods 8, and the inner side shape of the arc-shaped mud scraper rod 8 is adapted to the outer circumferential wall shape of the drill bit body 1.

[0048] When the mud scraper frame 2 is mounted on the stirring blade 11, the center of the arc corresponding to the inner side of the arc-shaped mud scraper rod 8 coincides with the central axis of the drill bit body 1. By setting the arc-shaped mud scraper rod 8, when the mud scraper frame 2 moves in the direction close to the drill bit body 1, the arc-shaped mud scraper rod 8 can be used to cut and scrape off part of the sticky soil adhering to the outer peripheral wall of the drill bit body 1, thereby improving the scraping effect of the sticky soil.

[0049] In this embodiment, the length of the arc-shaped scraper rod 8 is less than half the spacing of the stirring blades 11, so as to avoid interference between the arc-shaped scraper rod 8 on the scraper frame 2 and the stirring blades 11.

[0050] The remaining structures in this embodiment are the same as those in Embodiment 1 above, and will not be described again here.

[0051] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A mud scraping device for a forced mixing system of a high clay soil layer, characterized in that, It includes several mud scraper frames (2) fitted on and slidably connected to the stirring blades (11), and several connecting rods (4) with one end rotatably connected to the bottom of the mud scraper frame (2) and the other end rotatably connected to the drill bit body (1); It also includes a transmission assembly (3) and a drive structure for driving the transmission assembly (3) to pull or push the scraper frame (2) to slide on the stirring blade (11). One end of the transmission assembly (3) is connected to the output end of the drive structure, and the other end is rotatably connected to the top of several scraper frames (2).

2. The mud scraping device of the forced mixing system for high cohesive soil layer according to claim 1, characterized in that, The transmission assembly (3) includes several transmission rods (31), as well as a transmission cage (32) and a drive ring (33) for mounting on the drill rod (5); One end of several of the transmission rods (31) is rotatably connected to the top of the scraper frame (2), and the other end is rotatably connected to the bottom of the transmission cage (32). The top of the transmission cage (32) is rotatably connected to the bottom of the drive ring (33). The drive ring (33) is fixedly connected to the output end of the drive structure.

3. The mud scraping device of the forced mixing system for high cohesive soil layer according to claim 2, characterized in that, The transmission cage (32) includes a first transmission ring (321) and a second transmission rod (31) arranged coaxially, and a number of connecting rods (323). The two ends of the connecting rods (323) are fixedly connected to the first transmission ring (321) and the second transmission ring (322) respectively. Several of the aforementioned transmission rods (31) are rotatably connected to the first transmission rod (31), and the bottom of the drive ring (33) is rotatably connected to the top of the second transmission ring (322).

4. The mud scraping device of the forced mixing system for high viscous soil layer according to claim 2, characterized in that, The drive structure is a hydraulic drive cylinder (6) that is inverted and mounted on the frame (7). The output shaft of the hydraulic drive cylinder (6) is fixedly connected to the drive ring (33).

5. The mud scraping device of the forced mixing system for high viscous soil layer according to claim 4, characterized in that, The drive ring (33) is provided with two oppositely arranged connecting platforms (331); Two hydraulic drive cylinders (6) are provided, and the output shafts of the two hydraulic drive cylinders (6) are fixedly connected to two connecting platforms (331) on the drive ring (33).

6. The mud scraping device of the forced mixing system for high viscous soil layer according to claim 1, wherein The scraper frame (2) includes a first scraper (21) and a second scraper (22) arranged parallel to each other. The top and bottom of the first scraper (21) and the second scraper (22) are fixedly connected. There is a scraping gap (23) between the first scraper (21) and the second scraper (22) for accommodating the stirring blade (11).

7. The mud scraping device of the forced mixing system for high viscous soil layer according to claim 6, characterized in that, The two sides of the scraper frame (2) are also provided with several arc-shaped scraper rods (8), and the inner side shape of the arc-shaped scraper rods (8) is adapted to the outer circumferential wall shape of the drill bit body (1). When the mud scraper frame (2) is fitted onto the stirring blade (11), the center of the arc corresponding to the inner side of the arc-shaped mud scraper rod (8) coincides with the central axis of the drill bit body (1).

8. The sludge scraping device of the forced mixing system for high-viscosity soil layer according to claim 7, characterized in that, The length of the arc-shaped scraper (8) is less than half the spacing between the stirring blades (11).

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