A compact grouting device

Abstract

The utility model provides a kind of compaction grouting device, it belongs to compaction grouting field, it includes: mobile seat, the mobile seat is installed with cement pump and mixing cylinder being connected, the discharge end of the cement pump is connected with grouting pipe;Mixing assembly;The mixing assembly includes cross plate installed in mixing cylinder, the first shaft and four second shaft rods that are rotatably arranged and can synchronously rotate are penetrated and arranged on the cross plate, the bottom of the first shaft is fixed with driving shaft, a plurality of stirring mixing plates are fixed on the driving shaft, the bottom of the second shaft rod is fixed with connecting block, two stirring blades are fixed on the connecting block.The utility model uses the mode of multi-shaft synchronous stirring, greatly expands stirring range, improves stirring efficiency, shortens stirring time;At the same time, reasonable component layout and transmission mechanism design ensure the stability and uniformity of stirring process, effectively improve the quality of slurry.

Description

Technical Field

[0001] This utility model relates to the field of compaction grouting technology, and in particular to a compaction grouting device. Background Technology

[0002] Compaction grouting is commonly used in medium sand and clay foundations, and can also be used in clay foundations with suitable drainage conditions. If drainage difficulties arise, potentially causing high pore water pressure in the soil, a very low grouting rate must be adopted. Compaction grouting can be used in unsaturated soils for underpinning techniques to adjust uneven settlement, and for reinforcing adjacent soils during large-scale excavations or tunnel excavations.

[0003] The prior art has a shortcoming: the simple mixing structure of the device results in a single mixing method and an effective mixing range, leading to low mixing efficiency, long mixing time, and poor mixing effect, which affects the quality of the grout.

[0004] Therefore, this application proposes a compaction grouting device. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, this utility model provides a compaction grouting device.

[0006] An embodiment of this utility model provides a compaction grouting device, comprising: A mobile base is provided, on which a cement pump and a mixing cylinder are connected and connected. The discharge end of the cement pump is connected to a grouting pipe. A mixing assembly; the mixing assembly includes a cross plate installed inside a mixing cylinder, through which a first shaft and four second shafts are rotatably configured and capable of rotating synchronously. A drive shaft is fixed to the bottom of the first shaft, and multiple stirring and mixing plates are fixed on the drive shaft. A connecting block is fixed to the bottom of the second shaft, and two stirring blades are fixed on the connecting block.

[0007] Furthermore, four second shafts are located at the ends of the cross plate, and the first shaft is located at the middle of the cross plate.

[0008] Furthermore, a first sprocket is fixed on the first shaft, and a second sprocket is fixed on the second shaft. The first sprocket and the second sprocket are connected by a chain.

[0009] Furthermore, it also includes a motor, the output end of which is connected to the first shaft.

[0010] Furthermore, the inlet of the cement pump is connected to the mixing drum via a connecting pipe, which is located near the bottom of the mixing drum.

[0011] Furthermore, the mixing plate will not come into contact with the mixing blades during the rotation process.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention employs a multi-axis synchronous stirring method, which greatly expands the stirring range, improves stirring efficiency, and shortens stirring time. At the same time, the reasonable component layout and transmission mechanism design ensure the stability and uniformity of the stirring process, effectively improving the quality of the slurry. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a compaction grouting device described in an embodiment of this utility model.

[0014] Figure 2 This is a schematic diagram of the mixing cylinder in a compaction grouting device according to an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the stirring blade in a compaction grouting device described in an embodiment of this utility model.

[0016] In the above-mentioned attached figures: 1. Movable base, 2. Cement pump, 3. Grouting pipe, 4. Connecting pipe, 5. Mixing cylinder, 6. Motor, 7. First shaft, 8. Second shaft, 9. First sprocket, 10. Second sprocket, 11. Chain, 13. Cross plate, 14. Mixing plate, 15. Connecting block, 16. Mixing blade, 17. Drive shaft. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1-3 As shown in the figure, this utility model embodiment proposes a compaction grouting device, comprising: The movable base 1 serves as the support and foundation for the entire device, and its bottom is equipped with steel wheels for movement. These steel wheels not only provide flexible mobility, facilitating rapid relocation of the device between different construction locations, but also allow for compaction of the grouting area after grouting is completed. The rolling compaction by the steel wheels effectively improves the density of the grouting area, enhancing the stability of the road and bridge structure.

[0019] A cement pump 2 and a mixing cylinder 5 are installed on the mobile base 1 and are connected to each other. The cement pump 2 serves as the power source for slurry transportation. Its inlet end is connected to the mixing cylinder 5 via a connecting pipe 4, which is located near the bottom of the mixing cylinder 5. This design allows the cement pump 2 to fully extract the thoroughly stirred slurry from the mixing cylinder 5, preventing the slurry from settling at the bottom of the mixing cylinder 5 and becoming unusable. The discharge end of the cement pump 2 is connected to a grouting pipe 3, which is made of high-strength, corrosion-resistant material, capable of withstanding the impact of high-pressure slurry and accurately delivering the slurry to the designated grouting location. The length and diameter of the grouting pipe 3 can be flexibly adjusted according to actual construction needs to meet grouting operations of different depths and ranges.

[0020] The mixing component is the core part of this device. It is installed inside the mixing cylinder 5 and is responsible for thoroughly mixing cement, water and other additives to ensure that the slurry has a uniform and stable quality.

[0021] The mixing assembly includes a cross plate 13 installed inside the mixing cylinder 5. The cross plate 13 is fixed to the mixing cylinder 5 by a bracket (not shown in the figure). A first shaft 7 and four second shafts 8, which are rotatably configured and capable of synchronous rotation, are threaded through the cross plate 13. Bearings are installed between them to ensure stable rotation. The four second shafts 8 are evenly distributed at the ends of the cross plate 13, while the first shaft 7 is located in the middle of the cross plate 13. This layout allows the mixing range to cover all areas within the mixing cylinder 5, avoiding dead zones and improving the uniformity of mixing.

[0022] A first sprocket 9 is fixed to the first shaft 7, and a second sprocket 10 is fixed to the second shaft 8. The first sprocket 9 and the second sprocket 10 are connected by a chain 11. When the motor 6 starts and drives the first shaft 7 to rotate, the first sprocket 9 rotates accordingly, and transmits power to the second sprocket 10 through the chain 11, thereby driving the four second shafts 8 to rotate synchronously. This sprocket and chain drive mechanism has the characteristics of stable and reliable transmission, which can ensure the synchronous operation between the shafts and guarantee the coordination of the stirring process.

[0023] A dust cover can be installed on the cross plate 13 to protect the chain 11, the first sprocket 9, and the second sprocket 10. The motor 6 is mounted on the dust cover. The motor 6 serves as the power source for the entire mixing assembly, and its output end is connected to the first shaft 7. The motor 6 is a high-performance, low-noise model with sufficient power and speed adjustment range, capable of providing appropriate power output according to different mixing requirements. In actual use, operators can precisely control the mixing process by controlling the motor's speed and running time, ensuring the slurry achieves optimal mixing results.

[0024] A drive shaft 17 is fixed to the bottom of the first shaft 7, and multiple mixing plates 14 are fixed on the drive shaft 17. The mixing plates 14 adopt a special shape and structural design, such as spiral or blade shape, which can generate strong mixing force during rotation, and fully tumble and mix the slurry. A connecting block 15 is fixed to the bottom of the second shaft 8, and two mixing blades 16 are fixed on the connecting block 15. The mixing blades 16 can cooperate with the mixing plates 14 to achieve mixing in the middle. The mixing blades 16 can achieve small-scale mixing in four areas, avoiding the formation of eddies. When the flowing water and cement pass through the mixing blades 16, they will change the water and cement being mixed by the mixing blades 16 in real time, further improving the mixing efficiency. At the same time, the mixing plates 14 do not come into contact with the mixing blades 16 during rotation, avoiding collision and wear between components and extending the service life of the equipment.

[0025] In practical construction applications, cement, water, and other additives are first added to the mixing drum 5 in a certain proportion. Then, the motor 6 is started, which drives the first shaft 7 to rotate. Through the transmission of the first sprocket 9, the second sprocket 10, and the chain 11, the four second shafts 8 rotate synchronously, thereby driving the mixing plate 14 and the mixing blades 16 to fully mix the slurry. After mixing is completed, the cement pump 2 is started to transport the slurry in the mixing drum 5 to the designated grouting position through the grouting pipe 3. At the same time, the steel wheel at the bottom of the moving seat 1 is used to compact the grouting position.

[0026] This municipal road and bridge construction compaction grouting device, through optimized structural design of the mixing components and the adoption of multi-axis synchronous mixing, significantly expands the mixing range, improves mixing efficiency, and shortens mixing time. Simultaneously, the rational component layout and transmission mechanism design ensure the stability and uniformity of the mixing process, effectively improving the quality of the grout.

[0027] The movable base 1 has steel wheels installed at its bottom for movement, which are used to compact the grouting position. A cement pump 2 and a mixing cylinder 5 are installed on the movable base 1. The inlet end of the cement pump 2 is connected to the mixing cylinder 5 through a connecting pipe 4. The connecting pipe 4 is located near the bottom of the mixing cylinder 5. The outlet end of the cement pump 2 is connected to a grouting pipe 3. A mixing assembly includes a cross plate 13 installed inside a mixing cylinder 5. A first shaft 7 and four second shafts 8 are rotatably mounted on the cross plate 13 and are capable of rotating synchronously. The four second shafts 8 are located at the ends of the cross plate 13, and the first shaft 7 is located in the middle of the cross plate 13. A first sprocket 9 is fixed on the first shaft 7, and a second sprocket 10 is fixed on the second shafts 8. The first sprocket 9 and the second sprocket 10 are connected by a chain 11.

[0028] It also includes a motor 6, the output end of which is connected to the first shaft 7.

[0029] A drive shaft 17 is fixed to the bottom of the first shaft 7, and a plurality of stirring and mixing plates 14 are fixed on the drive shaft 17. The stirring and mixing plates 14 will not contact the stirring blades 16 during rotation. A connecting block 15 is fixed to the bottom of the second shaft 8, and two stirring blades 16 are fixed on the connecting block 15.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A compaction grouting device, characterized in that, include: A movable base (1) is provided, on which a cement pump (2) and a mixing cylinder (5) are connected. The discharge end of the cement pump (2) is connected to a grouting pipe (3). The mixing assembly includes a cross plate (13) installed inside a mixing cylinder (5). A first shaft (7) and four second shafts (8) are rotatably mounted and can rotate synchronously through the cross plate (13). A drive shaft (17) is fixed to the bottom of the first shaft (7). Multiple stirring and mixing plates (14) are fixed to the drive shaft (17). A connecting block (15) is fixed to the bottom of the second shafts (8). Two stirring blades (16) are fixed to the connecting block (15).

2. The compaction grouting device according to claim 1, characterized in that, in: Four second shafts (8) are located at the ends of the cross plate (13), and the first shaft (7) is located at the middle of the cross plate (13).

3. The compaction grouting device according to claim 1, characterized in that, in: A first sprocket (9) is fixed on the first shaft (7), and a second sprocket (10) is fixed on the second shaft (8). The first sprocket (9) and the second sprocket (10) are connected by a chain (11).

4. The compaction grouting device according to claim 1, characterized in that, in: It also includes a motor (6), the output end of which is connected to the first shaft (7).

5. A compaction grouting device according to claim 1, characterized in that, in: The inlet of the cement pump (2) is connected to the mixing cylinder (5) via a connecting pipe (4), and the connecting pipe (4) is located near the bottom of the mixing cylinder (5).

6. The compaction grouting device according to claim 1, characterized in that, in: The mixing plate (14) will not come into contact with the mixing blade (16) during the rotation process.

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