Bidirectional spiral stirring device of three-shaft cement stirring pile

Abstract

The utility model relates to the technical field of building construction, and discloses a bidirectional spiral stirring device of a three-shaft cement stirring pile, which comprises a spiral stirring component, a stirring component and a stirring component, the spiral stirring component comprises three groups of outer rotating rods and inner rotating rods which are concentrically arranged, and the outer rotating rods and the inner rotating rods are connected with rotating blades; the assembly box is installed on a machine body of the three-shaft cement mixing pile machine, three power transmission boxes arranged side by side are connected into the assembly box, the two output ends of the power transmission boxes are connected with the outer rotating rod and the inner rotating rod correspondingly and used for driving the outer rotating rod and the inner rotating rod to rotate in the opposite directions, and the power transmission boxes located on the two sides slide in the assembly box. And a preset stirring interval is formed by the rotary stirring assembly. The position of the power transmission box in the assembly box can be adjusted, the rotary stirring assemblies on the two sides are adjusted to the preset stirring distance, the rotary stirring requirements according to different soil properties and different grouting amounts are effectively met, different construction schemes are adopted, and the uniformity and stirring efficiency of cement paste in a pile body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and more specifically, to a bidirectional rotary stirring device for a three-axis cement mixing pile. Background Art

[0002] Cement mixing piles are a commonly used foundation reinforcement method for reinforcing saturated soft soil foundations. It uses cement as a curing agent, and uses deep mixing machinery to spray cement slurry into the soft soil while drilling, so as to solidify the soft soil into cement soil with sufficient strength, deformation modulus and stability, thereby reinforcing the foundation. With the continuous expansion of cement mixing piles and the continuous development of cement mixing pile construction equipment, cement mixing piles are constantly developing in the direction of larger diameters and multiple axes.

[0003] In the prior art, for example, the utility model patent with application number CN202320696765.8 discloses a three-axis pile mixing machine for cement mixing pile construction, which includes a mobile base, a support assembly, a mixing assembly and two blocking assemblies symmetrically arranged on the mixing assembly; the support assembly includes a guide frame and a lifting member arranged on the mobile base; the mixing assembly includes a mixing member slidably connected to the guide frame and a limiting seat arranged at one end of the guide frame close to the ground; and the mixing member is vertically penetrated through the limiting seat, and the lifting member is also connected to the mixing member and can lift the mixing member; the blocking assembly includes a displacement control member arranged on one side of the limiting seat, a U-shaped blocking plate arranged on the displacement control member and a plurality of connectors equidistantly arranged on the side of the U-shaped blocking plate close to the ground; the displacement control member can drive the U-shaped blocking plate to abut against the adjacent U-shaped blocking plate, and the connector can be inserted into the soil.

[0004] When the mixing components of the three-axis cement mixing pile machine are used, the spacing of the mixing components is fixed. However, when the three-axis cement mixing pile is used in different soils, the spacing of the mixing components in different construction plans is different. This device cannot be adaptively adjusted, and the mixing effect is not ideal. Therefore, it is necessary to propose a two-way rotary stirring device for a three-axis cement mixing pile to at least partially solve the above technical problems. Utility Model Content

[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0006] In order to at least partially solve the above technical problems, the utility model provides a bidirectional rotary stirring device for a three-axis cement mixing pile, comprising:

[0007] The rotary stirring assembly includes three sets of concentrically arranged outer rotating rods and inner rotating rods, and the outer rotating rods and the inner rotating rods are connected with rotating blades;

[0008] The assembly box is installed on the body of the three-axis cement mixing pile machine. Three parallel power transmission boxes are connected to the assembly box. The two output ends of the power transmission box are respectively connected to the outer rotating rod and the inner rotating rod to drive the outer rotating rod and the inner rotating rod to rotate in opposite directions. The power transmission boxes on both sides slide in the assembly box to make the rotary stirring assembly form a preset stirring spacing.

[0009] Preferably, each set of rotating stirring components is provided with three sets of rotating blades, wherein one set of rotating blades is connected to the outer rotating rod, and two sets of rotating blades are connected to the inner rotating rod, the bottom end of the inner rotating rod extends out of the outer rotating rod, and the spacing between the three sets of rotating blades is equal.

[0010] Preferably, the rotating blades on the rotating stirring assemblies on both sides are arranged in the same manner, and the rotating blades on the middle rotating stirring assembly are arranged alternately with the rotating blades on the rotating stirring assemblies on both sides.

[0011] Preferably, the power transmission box includes: a driving motor, a driving shaft, an outer rotating rod transmission shaft and an inner rotating rod transmission shaft, the driving motor is connected to the top of the power transmission box; the driving shaft is rotatably connected to the inner wall of the power transmission box and connected to the output end of the driving motor, and the driving shaft is connected to a driving gear and a first pulley; the outer rotating rod transmission shaft is rotatably connected to the bottom end of the power transmission box, and the outer rotating rod transmission shaft is connected to a driven gear, and the driven gear is meshed with the driving gear; the inner rotating rod transmission shaft is rotatably connected to the top of the power transmission box and passes through the center of the outer rotating rod transmission shaft, and the inner rotating rod transmission shaft is connected to a second pulley, and the second pulley is connected to the first pulley through a synchronous belt.

[0012] Preferably, the outer rotating rod transmission shaft and the inner rotating rod transmission shaft are concentrically arranged.

[0013] Preferably, flanges are provided at the bottom ends of the outer rotating rod transmission shaft and the inner rotating rod transmission shaft, the flange at the bottom end of the outer rotating rod transmission shaft is connected to the outer rotating rod, and the flange at the bottom end of the inner rotating rod transmission shaft is connected to the inner rotating rod.

[0014] Preferably, lugs are symmetrically connected to the front and rear sides of the power transmission box, mounting holes are provided on the lugs, the lugs extend out of the front and rear sides of the assembly box, and a slide groove is provided on the assembly box for the lugs, drive motor and outer rotating rod transmission shaft to extend out.

[0015] Preferably, an adjustment component is provided outside the assembly box, and the adjustment component includes:

[0016] A screw motor, the screw motor is connected to the outer wall of the assembly box, the output end of the screw motor is connected to a screw shaft, and the screw shaft is connected to an adjustment plate;

[0017] Guide rails, the guide rails are horizontally connected to the outer wall of the assembly box, and the two guide rails are symmetrically arranged on both sides of the screw motor. A guide block is slidably connected to the guide rails, and a screw is connected to the bottom end of the guide block. The two screws pass through the mounting holes on the same side of the left and right power transmission boxes respectively and are connected by nuts;

[0018] A connecting rod, both ends of which are respectively connected to a guide block and an adjusting plate.

[0019] Preferably, the screw shaft is arranged perpendicular to the guide rail.

[0020] Preferably, adjustment components are provided on both the front and rear sides of the assembly box, and the screws of the adjustment components are respectively connected to the mounting holes on the front and rear sides.

[0021] Compared with the prior art, the present invention provides a bidirectional rotary stirring device for a three-axis cement mixing pile, which at least comprises the following:

[0022] Beneficial effects:

[0023] The present application provides a bidirectional rotary stirring device for a three-axis cement mixing pile, which adopts a three-axis rotary stirring assembly with adjustable spacing. The inner rotating rod and the outer transmission rod rotate in opposite directions, and the position of the power transmission box in the assembly box can be adjusted to adjust the rotary stirring assemblies on both sides to a preset stirring spacing, effectively adapting to the rotary stirring requirements based on different soil types and different grouting amounts, and adopting different construction schemes, thereby improving the uniformity and stirring efficiency of the cement slurry in the pile body.

[0024] The utility model describes a bidirectional rotary stirring device for a three-axis cement mixing pile. Other advantages, objectives and features of the utility model will be partially reflected through the following description, and will also be partially understood by technicians in this field through research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the assembly box in the utility model;

[0028] Figure 3 It is a schematic cross-sectional structure diagram of the power transmission box in the utility model;

[0029] Figure 4 This is a schematic diagram of the installation structure of the adjustment component in the utility model;

[0030] Figure 5 It is a structural schematic diagram of the adjustment component in the utility model;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the screw shaft in the utility model;

[0032] Figure 7 It is the on-site operation construction drawing of the present utility model.

[0033] In the figure: 1. outer rotating rod; 2. inner rotating rod; 3. rotating blade; 4. assembly box; 5. fuselage; 6. power transmission box; 11. driving motor; 12. driving shaft; 13. driving gear; 14. first pulley; 15. outer rotating rod transmission shaft; 16. driven gear; 17. inner rotating rod transmission shaft; 18. second pulley; 19. synchronous belt; 20. flange; 21. lug; 22. mounting hole; 23. screw motor; 24. screw shaft; 25. adjustment plate; 26. guide track; 27. guide block; 28. screw; 29. ​​connecting rod; 30. limit hole; 31. limit rod. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0035] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0036] Example:

[0037] like Figure 1 , 2 As shown, the utility model provides a bidirectional rotary stirring device for a three-axis cement mixing pile, comprising:

[0038] The rotary stirring assembly comprises three sets of outer rotating rods 1 and inner rotating rods 2 arranged concentrically, and the outer rotating rods 1 and the inner rotating rods 2 are connected with rotating blades 3;

[0039] Assembly box 4, assembly box 4 is installed on the body 5 of the three-axis cement mixing pile machine, and three parallel power transmission boxes 6 are connected in the assembly box 4. The two output ends of the power transmission box 6 are respectively connected to the outer rotating rod 1 and the inner rotating rod 2, and are used to drive the outer rotating rod 1 and the inner rotating rod 2 to rotate in opposite directions. The power transmission boxes 6 located on both sides slide in the assembly box 4, so that the rotary stirring assembly forms a preset stirring distance.

[0040] Each set of rotary stirring components is provided with three sets of rotating blades 3, wherein one set of rotating blades 3 is connected to the outer rotating rod 1, and two sets of rotating blades 3 are connected to the inner rotating rod 2, the bottom end of the inner rotating rod 2 extends out of the outer rotating rod 1, and the three sets of rotating blades 3 are equally spaced.

[0041] The rotating blades 3 on the rotating stirring components on both sides are arranged in the same manner, and the rotating blades 3 on the middle rotating stirring component are arranged alternately with the rotating blades 3 on the rotating stirring components on both sides.

[0042] The working principle and beneficial effects of the above technical solution are:

[0043] A bidirectional rotary stirring device for a three-axis cement mixing pile, when in use, an outer rotary stirring device 1 and an inner rotating rod 2 are driven to rotate in opposite directions by a power transmission box 6, a grouting port is arranged on the side of the bottom opening of the inner rotating rod 2, and rotary blades 3 on the outer rotary stirring device 1 and the inner rotating rod 2 stir the cement slurry, and the rotary blades 3 on the inner rotating rod 2 stir the cement slurry so that it is evenly distributed in the pile body, and the rotary blades 3 on the outer rotary stirring device 2 press down the emerging cement slurry by rotating in the opposite direction, thereby reducing the loss of cement slurry.

[0044] Before operation, the power transmission boxes 6 on both sides are slid in the assembly box 4, and the spacing between the rotary stirring components on both sides is adjusted to the preset stirring spacing, so that it can adapt to the rotary stirring requirements of different soil types and different grouting amounts, while improving the mutual influence of soil pressure during the rotary stirring and grouting process of adjacent rotating rods.

[0045] By providing a plurality of groups of staggered rotating blades 3, the rotating blades 3 rotate at a high speed during operation, and the degree of soil shearing is high, so that the cement slurry is quickly stirred, the slurry absorption effect of the soil is improved, and the uniformity and stirring efficiency of the cement slurry in the pile are improved.

[0046] The present application provides a bidirectional rotary stirring device for a three-axis cement mixing pile, which adopts a three-axis rotary stirring assembly with adjustable spacing. The inner rotating rod and the outer transmission rod rotate in opposite directions, and the position of the power transmission box 6 in the assembly box can be adjusted to adjust the rotary stirring assemblies on both sides to a preset stirring spacing, effectively adapting to the rotary stirring requirements based on different soil types and different grouting amounts, and adopting different construction schemes, thereby improving the uniformity and stirring efficiency of the cement slurry in the pile body.

[0047] In one embodiment, Figure 3 As shown, the power transmission box 6 includes: a driving motor 11, a driving shaft 12, an outer rotating rod transmission shaft 15 and an inner rotating rod transmission shaft 17, the driving motor 11 is connected to the top of the power transmission box 6; the driving shaft 12 is rotatably connected to the inner wall of the power transmission box 6, and is connected to the output end of the driving motor 11, and the driving shaft 12 is connected with a driving gear 13 and a first pulley 14; the outer rotating rod transmission shaft 15 is rotatably connected to the bottom end of the power transmission box 6, and the outer rotating rod transmission shaft 15 is connected with a driven gear 16, and the driven gear 16 is meshed with the driving gear 13; the inner rotating rod transmission shaft 17 is rotatably connected to the top of the power transmission box 6, and passes through the center of the outer rotating rod transmission shaft 15, and the inner rotating rod transmission shaft 17 is connected with a second pulley 18, and the second pulley 18 is connected to the first pulley 14 through a synchronous belt 19.

[0048] The outer rotating rod transmission shaft 15 and the inner rotating rod transmission shaft 17 are arranged concentrically.

[0049] The bottom ends of the outer rotating rod transmission shaft 15 and the inner rotating rod transmission shaft 17 are both provided with flanges 20 . The flange 20 at the bottom end of the outer rotating rod transmission shaft 15 is connected to the outer rotating rod 1 , and the flange 20 at the bottom end of the inner rotating rod transmission shaft 17 is connected to the inner rotating rod 2 .

[0050] The working principle and beneficial effects of the above technical solution are:

[0051] When the power transmission box 6 is used, the driving motor 11 is started to drive the driving shaft 12 to rotate, the driving gear 13 and the first pulley 14 on the driving shaft 12 rotate synchronously, and the first pulley 14 drives the second pulley 18 to rotate through the synchronous belt 19, so that the inner rotating rod transmission shaft 17 rotates in the same direction; the driving gear 13 is meshed with the driven gear 16 to drive the driven gear 16 to rotate in the opposite direction, so that the outer rotating rod transmission shaft 15 also rotates in the opposite direction; the outer rotating rod transmission shaft 15 and the inner rotating rod transmission shaft 17 are respectively connected to the outer rotating rod 1 and the inner rotating rod 2, so that the outer rotating rod 1 and the inner rotating rod 2 rotate in opposite directions. The power transmission path in the power transmission box 6 is clear and easy to control.

[0052] In one embodiment, Figure 4 , 5 As shown, the power transmission box 6 is symmetrically connected to the front and rear sides with lugs 21, and mounting holes 22 are provided on the lugs 21. The lugs 21 extend out of the front and rear sides of the assembly box 4, and the assembly box 4 is provided with a slide groove for the lugs 21, the drive motor 11 and the outer rotating rod transmission shaft 15 to extend out.

[0053] An adjustment component is arranged outside the assembly box 4, and the adjustment component includes:

[0054] A screw motor 23, the screw motor 23 is connected to the outer wall of the assembly box 4, the output end of the screw motor 23 is connected to a screw shaft 24, and the screw shaft 24 is connected to an adjustment plate 25;

[0055] A guide rail 26, the guide rail 26 is horizontally connected to the outer wall of the assembly box 4, and the two guide rails 26 are symmetrically arranged on both sides of the screw motor 23, a guide block 27 is slidably connected to the guide rail 26, and a screw 28 is connected to the bottom end of the guide block 27, and the two screws 28 pass through the mounting holes 22 on the same side of the left and right power transmission boxes 6 respectively, and are connected by nuts;

[0056] The connecting rod 29 has two ends connected to the guide block 27 and the adjusting plate 25 respectively.

[0057] The screw shaft 24 and the guide rail 26 are arranged perpendicularly.

[0058] Adjustment components are provided on both the front and rear sides of the assembly box 4, and the screw rods 28 of the adjustment components are respectively connected to the installation holes 22 on the front and rear sides.

[0059] The working principle and beneficial effects of the above technical solution are:

[0060] An adjusting assembly is arranged on the assembly box 4. When in use, the screw motor 23 is started to drive the screw shaft 24 to rotate, and the adjusting plate 25 moves along the screw shaft 24. The adjusting plate 25 drives the guide block 27 to slide in the guide rail 29 through the connecting rod 29. The guide block 29 is connected to the mounting hole 22 on the lug 21 through the screw 28, thereby driving the power transmission box 6 to slide in the assembly box 4; when the screw motor 23 rotates forward, the adjusting plate 25 moves in the direction away from the screw motor 23, driving the power transmission boxes 6 on the left and right sides to approach each other, and the spacing of the rotating and stirring components is reduced; on the contrary, when the screw motor 23 rotates reversely, the adjusting plate 25 moves in the direction close to the screw motor 23, driving the power transmission boxes 6 on the left and right sides to move away from each other, and the spacing of the rotating and stirring components is increased; therefore, the spacing of the rotating and stirring components can be adjusted by controlling the screw motor 23. By means of two guide rails 26 symmetrically arranged on the left and right sides, synchronous adjustment of the power transmission box 6 on the left and right sides can be achieved, thereby reducing the deviation of the spacing during the adjustment process; by means of two sets of adjustment components arranged in the front and rear, the front and rear sides of the power transmission box 6 can be adjusted synchronously, thereby avoiding the situation in which the power transmission box 6 is unbalanced by the torsional force during unilateral adjustment, which affects the sliding and improves the reliability of the transmission.

[0061] In one embodiment, Figure 5 , 6 As shown, a plurality of limiting holes 30 are provided on the lead screw shaft 24 , and a limiting rod 31 is telescopically provided on the adjusting plate 25 .

[0062] The working principle and beneficial effects of the above technical solution are:

[0063] When the spacing of the stirring assembly is adjusted to the preset value, the limit rod 31 is located directly above one of the limit holes 30. At this time, the limit rod 31 is inserted into the limit hole 30 here to lock the position of the adjustment plate 25, and the position of the stirring assembly is locked accordingly, solving the problem of vibration during operation and causing the stirring assembly to shift. The limit rod 31 adopts a telescopic design. In the initial state, the limit rod 31 pops out relative to the adjustment plate 25 and does not contact the screw shaft 24; after the adjustment is completed, it is driven by magnetic force or other means to shrink the limit rod 31 in the adjustment plate 25 so that its bottom end enters the limit hole 30.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A bidirectional rotary stirring device for a three-axis cement mixing pile, characterized in that: include: The rotary stirring assembly comprises three groups of concentrically arranged outer rotating rods (1) and inner rotating rods (2), and the outer rotating rods (1) and the inner rotating rods (2) are connected with rotating blades (3); The assembly box (4) is mounted on a body (5) of a three-axis cement mixing pile machine. Three parallel power transmission boxes (6) are connected inside the assembly box (4). Two output ends of the power transmission box (6) are respectively connected to an outer rotating rod (1) and an inner rotating rod (2) to drive the outer rotating rod (1) and the inner rotating rod (2) to rotate in opposite directions. The power transmission boxes (6) located on both sides slide inside the assembly box (4) so ​​that the rotary stirring assembly forms a preset stirring interval.

2. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 1, characterized in that: Each set of rotary stirring components is provided with three sets of rotary blades (3), wherein one set of rotary blades (3) is connected to the outer rotary rod (1), and two sets of rotary blades (3) are connected to the inner rotary rod (2), the bottom end of the inner rotary rod (2) extends out of the outer rotary rod (1), and the three sets of rotary blades (3) are spaced at equal intervals.

3. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 2, characterized in that: The rotating blades (3) on the rotating stirring assemblies on both sides are arranged in the same manner, and the rotating blades (3) on the middle rotating stirring assembly are arranged alternately with the rotating blades (3) on the rotating stirring assemblies on both sides.

4. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 1, characterized in that: The power transmission box (6) comprises: a driving motor (11), a driving shaft (12), an outer rotating rod transmission shaft (15) and an inner rotating rod transmission shaft (17), wherein the driving motor (11) is connected to the top of the power transmission box (6); the driving shaft (12) is rotatably connected to the inner wall of the power transmission box (6) and is connected to the output end of the driving motor (11), and the driving shaft (12) is connected to a driving gear (13) and a first pulley (14); the outer rotating rod transmission shaft (15) is rotatably connected to the bottom end of the power transmission box (6), and the outer rotating rod transmission shaft (15) is connected to a driven gear (16), and the driven gear (16) is meshedly connected to the driving gear (13); the inner rotating rod transmission shaft (17) is rotatably connected to the top of the power transmission box (6) and passes through the center of the outer rotating rod transmission shaft (15), and the inner rotating rod transmission shaft (17) is connected to a second pulley (18), and the second pulley (18) is connected to the first pulley (14) through a synchronous belt (19).

5. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 4, characterized in that: The outer rotating rod transmission shaft (15) and the inner rotating rod transmission shaft (17) are arranged concentrically.

6. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 4, characterized in that: The bottom ends of the outer rotating rod transmission shaft (15) and the inner rotating rod transmission shaft (17) are both provided with flanges (20); the flange (20) at the bottom end of the outer rotating rod transmission shaft (15) is connected to the outer rotating rod (1), and the flange (20) at the bottom end of the inner rotating rod transmission shaft (17) is connected to the inner rotating rod (2).

7. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 4, characterized in that: Lugs (21) are symmetrically connected to the front and rear sides of the power transmission box (6), and mounting holes (22) are arranged on the lugs (21). The lugs (21) extend out of the front and rear sides of the assembly box (4), and a slide groove is provided on the assembly box (4) for the lugs (21), the drive motor (11) and the outer rotating rod transmission shaft (15) to extend out.

8. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 7, characterized in that: An adjustment component is arranged outside the assembly box (4), and the adjustment component comprises: A lead screw motor (23), the lead screw motor (23) is connected to the outer wall of the assembly box (4), the output end of the lead screw motor (23) is connected to a lead screw shaft (24), and the lead screw shaft (24) is connected to an adjustment plate (25); A guide rail (26), the guide rail (26) is horizontally connected to the outer wall of the assembly box (4), and the two guide rails (26) are symmetrically arranged on both sides of the screw motor (23), a guide block (27) is slidably connected to the guide rail (26), a screw rod (28) is connected to the bottom end of the guide block (27), and the two screw rods (28) respectively pass through the mounting holes (22) on the same side of the left and right power transmission boxes (6) and are connected by nuts; The connecting rod (29) has two ends connected to the guide block (27) and the adjusting plate (25) respectively.

9. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 8, characterized in that: The lead screw shaft (24) and the guide track (26) are arranged vertically.

10. A bidirectional rotary stirring device for a three-axis cement mixing pile according to claim 8, characterized in that: Adjustment components are arranged on both the front and rear sides of the assembly box (4), and screw rods (28) of the adjustment components are respectively connected to the installation holes (22) on the front and rear sides.

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