Cement improved soil mixing and stirring head

Abstract

The utility model discloses a cement improved soil mixing and stirring head which comprises a rotating roller, and a spike tooth mechanism is arranged on the outer side of the rotating roller. The rotating roller comprises a rotating shell, the rotating shell is in a transverse cylindrical shell shape, an adjusting mechanism is arranged in the rotating shell, the rotating shell is connected with a telescopic mechanism through the adjusting mechanism, and the telescopic mechanism extends out of the outer side of the rotating shell and then is connected with a spike tooth mechanism; the telescopic mechanism comprises a plurality of movable plates, the movable plates are all located in the rotating shell and are arranged at equal intervals in the circumferential direction of the rotating shell, the sides, close to the axis of the rotating shell, of the movable plates are connected with the adjusting mechanism, and the sides, close to the inner wall of the rotating shell, of the movable plates are fixedly connected with telescopic arms; the telescopic arm penetrates out of an avoiding hole formed in the side wall of the rotary shell and then is connected with the spike tooth mechanism. According to the utility model, the stirring depth of the spike tooth mechanism can be adjusted according to the depth of a soil layer, so that the spike tooth mechanism can be suitable for operation of soil layers with various depths.

Description

Technical Field

[0001] The utility model relates to the field of road construction, in particular to a cement-improved soil mixing and stirring head. Background Art

[0002] In the existing technology, as the axle load of large transport vehicles has increased significantly, the bearing capacity requirements for the roadbed are getting higher and higher. In some places in my country, most of the soil is silty soil, clay, loess and expansive soil, which are not suitable for direct roadbed filling. If abandoned replacement is used, the project cost will be too high. If excavation and drying are used, the construction period will be too long. The road mixing method achieves roadbed strength hardening by laying cement on the soil layer and mixing it, which can speed up the construction progress and reduce construction costs.

[0003] Patent No. ZL201711415666.3 discloses an integrated intelligent construction device for road-mixing method. Although it can realize the mixing and stirring operation of cement and soil layers, the device adopts a reamer structure for roadbed mixing operation. In the actual construction process, before laying cement, the soil layer will first be flattened. The hardness of the flattened soil layer is relatively high, and the reamer structure is not easy to crush and stir the flattened soil layer. At the same time, the reamer structure is not easy to penetrate into the soil layer during construction, and the crushing and stirring operation of the deeper soil layer cannot be realized, which seriously affects the mixing and stirring effect of cement and soil layers. It is necessary to improve it. Summary of the invention

[0004] The utility model aims to solve the above problems and provide a cement improved soil mixing stirring head which has a simple structure and is convenient to use.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A cement-improved soil mixing head comprises a rotating roller, and a spike mechanism is arranged on the outer side of the rotating roller; the rotating roller comprises a rotating shell, and the rotating shell is in the shape of a horizontal cylindrical shell, and an adjustment mechanism is arranged inside the rotating shell and is connected to the telescopic mechanism through the adjustment mechanism, and the telescopic mechanism is connected to the spike mechanism after extending out of the rotating shell; the telescopic mechanism comprises a plurality of movable plates, and the plurality of movable plates are all located in the rotating shell and are arranged at equal intervals along the circumferential direction of the rotating shell, and the side of the movable plate close to the axis of the rotating shell is connected to the adjustment mechanism, and the side of the movable plate close to the inner wall of the rotating shell is fixedly connected to a telescopic arm, and the telescopic arm is connected to the spike mechanism after passing through an avoidance hole arranged on the side wall of the rotating shell.

[0007] Furthermore, the movable plate is in the shape of an arc plate, the length direction of the movable plate is consistent with the axial direction of the rotating shell, a plurality of telescopic arms are arranged on the movable plate at equal intervals along the length direction of the movable plate, and the telescopic arms on adjacent movable plates are staggered.

[0008] Furthermore, a plurality of guide sleeves are fixedly connected to the outside of the rotating shell, and the guide sleeves are arranged corresponding to the telescopic arm; the guide sleeves are arranged in a trapezoidal column shape, and a guide through hole is arranged inside the guide sleeve, and the guide through hole is connected to the avoidance hole; when the telescopic arm is connected to the rotating shell, one end of the telescopic arm passes through the avoidance hole and the guide through hole in sequence and is connected to the spike tooth mechanism.

[0009] Furthermore, a mounting sleeve is welded to one end of the telescopic arm away from the movable plate, the axial direction of the mounting sleeve is perpendicular to the length direction of the telescopic arm and the axial direction of the rotating shell, and the mounting sleeve is detachably connected to the spike mechanism.

[0010] Furthermore, the spike mechanism includes a mounting column and a cone part, one end of the mounting column is inserted into the mounting sleeve, and the other end of the mounting column is fixedly connected to the cone part, the mounting column is provided with a first mounting hole, and the mounting sleeve is provided with a second mounting hole, and the first mounting hole and the second mounting hole are connected by a latch part; the cone part is composed of a symmetrical combination of four groups of right-angle blades, and the outer edges of the four groups of right-angle blades are arranged in a blade shape.

[0011] Furthermore, the adjustment mechanism includes a positioning column, the length direction of the positioning column is consistent with the length direction of the rotating shell and the two are coaxially arranged, the two ends of the positioning column are respectively fixedly connected to the side walls on both sides of the rotating shell, and the outer side of the positioning column is slidably connected to two support components, the two support components are symmetrically arranged at the two ends of the movable plate and the support components are connected to the movable plate.

[0012] Furthermore, the support assembly includes a sleeve and a support shaft. The sleeve is slidably connected to the positioning column and can slide along the length direction of the positioning column. A plurality of support shafts are arranged at equal intervals on the outside of the sleeve along the circumferential direction of the sleeve. One end of the support shaft is connected to a first connecting ear pin shaft arranged on the outside of the sleeve, and the other end of the support shaft is connected to a second connecting ear pin shaft arranged on the inner side wall of the movable plate. The support shaft is arranged in an inclined state.

[0013] Furthermore, a first positioning hole is provided on the sliding sleeve, and a plurality of second positioning holes are provided at equal intervals at the top end of the positioning column along the length direction of the positioning column; after the position adjustment of the sliding sleeve is completed, the first positioning hole is connected to any second positioning hole by a positioning bolt.

[0014] Furthermore, limiting protrusions are arranged on the inner walls on both sides of the sliding sleeve, and limiting grooves corresponding to the limiting protrusions are arranged on the side walls of the positioning column, and the length direction of the limiting grooves is consistent with the length direction of the positioning column; when the sliding sleeve is connected to the positioning column, the limiting protrusions are located in the limiting grooves and can slide along the length direction of the limiting grooves.

[0015] Furthermore, the center positions on both sides of the outer end of the rotating shell are connected to the stirring device, and the side walls on both sides of the rotating shell are provided with adjustment openings, and the outer sides of the adjustment openings are bolted with opening and closing baffles.

[0016] Compared with the prior art, the utility model has the following advantages and positive effects:

[0017] The utility model improves the structure of the spike tooth mechanism so that when performing cement and soil mixing operations, it is only necessary to make the rotating roller drive the spike tooth mechanism to rotate, and the cone member in the spike tooth mechanism can easily crush and mix the flattened soil layer, thereby finally achieving the mixing and mixing effect between the cement and soil layers; at the same time, the utility model can control the telescopic mechanism through the adjustment mechanism, so as to adjust the distance between the spike tooth mechanism and the rotating shell body, and when performing crushing and mixing operations on deeper soil layers, it is only necessary to increase the distance between the spike tooth mechanism and the rotating shell body, and the spike tooth mechanism can enter the deeper soil layer for crushing and mixing operations when the rotating shell body rotates, thereby finally achieving the cement improved soil mixing and mixing operations in the deep soil layer; the utility model has a simple structure, and the mixing depth of the spike tooth mechanism can be adjusted according to the depth of the soil layer, so that it can be applied to soil layer operations of various depths, effectively improving the mixing and mixing effect of cement and soil layers, and bringing convenience to the mixing and mixing operations of cement improved soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a top view of the structure of the utility model;

[0020] Figure 2 for Figure 1 AA cross-sectional structure diagram;

[0021] Figure 3 for Figure 2 A magnified view of the local structure;

[0022] Figure 4 for Figure 1 BB cross-sectional structure diagram;

[0023] Figure 5 This is a cross-sectional structural diagram of the utility model after adjustment;

[0024] Figure 6 for Figure 5 A magnified view of the local structure;

[0025] Figure 7 It is a structural schematic diagram of the spike tooth mechanism. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the utility model.

[0027] like Figures 1 to 7 As shown, this embodiment discloses a cement-improved soil mixing head, comprising a rotating roller, and a spike mechanism 2 is arranged on the outer side of the rotating roller;

[0028] The rotating roller includes a rotating shell 1, which is in the shape of a horizontal cylindrical shell. An adjusting mechanism is arranged inside the rotating shell 1 and is connected to the telescopic mechanism through the adjusting mechanism. The telescopic mechanism is connected to the spike mechanism 2 after extending out of the rotating shell 1; the telescopic mechanism includes a plurality of movable plates 3, which are in the shape of arc plates. The length direction of the movable plates 3 is consistent with the axial direction of the rotating shell 1. The plurality of movable plates 3 are all located inside the rotating shell 1 and the movable plates 3 are arranged at equal intervals along the circumferential direction of the rotating shell 1. The side of the movable plate 3 close to the axis of the rotating shell 1 is connected to the adjusting mechanism. The side of the movable plate 3 close to the inner wall of the rotating shell 1 is fixedly connected with a telescopic arm 4. The telescopic arm 4 has a plurality of them and the plurality of telescopic arms 4 are arranged at equal intervals along the length direction of the movable plate 3. The telescopic arms 4 on adjacent movable plates 3 are staggered.

[0029] A plurality of guide sleeves 101 are fixedly connected to the outer side of the rotating shell 1, and the guide sleeves 101 are arranged corresponding to the telescopic arms 4; the guide sleeves 101 are arranged in a trapezoidal column shape, and a guide through hole 102 is arranged inside the guide sleeve 101, and the guide through hole 102 is connected to the avoidance hole 105 arranged on the side wall of the rotating shell 1;

[0030] One end of the telescopic arm 4 is connected to the movable plate 3, and the other end of the telescopic arm 4 passes through the avoidance hole 105 and the guide through hole 102 in sequence and then is welded with a mounting sleeve 401. The axial direction of the mounting sleeve 401 is perpendicular to the length direction of the telescopic arm 4 and the axial direction of the rotating shell 1 at the same time. The mounting sleeve 401 is detachably connected to the spike mechanism 2, such as Figure 2 , Figure 3 shown.

[0031] When the adjusting mechanism controls the telescopic mechanism, the telescopic arm will slide in the guide through hole. The structural design of the guide sleeve has great structural strength to withstand the reverse force brought by the spike tooth mechanism when breaking the soil layer. The staggered design of adjacent telescopic arms can make the adjacent spike tooth mechanisms also staggered, thereby improving the stirring effect when the spike tooth mechanism rotates.

[0032] like Figure 2 , Figure 7 As shown, the spike mechanism 2 includes a mounting column 201 and a cone member 202. One end of the mounting column 201 is inserted into a mounting sleeve 401, and the other end of the mounting column 201 is fixedly connected to the cone member 202. A first mounting hole 203 is provided on the mounting column 201, and a second mounting hole 402 is provided on the mounting sleeve 401. The first mounting hole 203 and the second mounting hole 402 are connected by a latch member. The cone member 202 is composed of a symmetrical combination of four groups of right-angle blades, and the outer edges of the four groups of right-angle blades are blade-shaped.

[0033] The cone in the spike mechanism has a sharp end and a blade edge, which can easily break the soil layer, thereby improving its crushing and stirring effect on the flattened soil layer; and the connection structure between the mounting column and the mounting sleeve facilitates the replacement of a damaged spike mechanism.

[0034] The center positions of both sides of the outer end of the rotating shell 1 are connected to the stirring device and driven by the stirring device to rotate around the axis. Adjustment openings 103 are provided on the side walls of both sides of the rotating shell 1. The outer side of the adjustment opening 103 is bolted with an opening and closing baffle 104 to facilitate opening the opening and closing baffle 104 and adjusting the adjustment mechanism through the adjustment opening 103.

[0035] The adjustment mechanism includes a positioning column 5, the length direction of the positioning column 5 is consistent with the length direction of the rotating shell 1 and the two are coaxially arranged, the two ends of the positioning column 5 are respectively fixedly connected to the side walls on both sides of the inside of the rotating shell 1, and the outer side of the positioning column 5 is slidably connected to two support components, and the two support components are symmetrically arranged at the two ends of the movable plate 3 and the support components are connected to the movable plate 3.

[0036] The support assembly includes a sleeve 6 and a support shaft 7. The sleeve 6 is slidably connected to the positioning column 5 and can slide along the length direction of the positioning column 5. A number of support shafts 7 are evenly spaced along the circumferential direction of the sleeve 6 on the outside of the sleeve 6. One end of the support shaft 7 is pin-connected to a first connecting ear 601 disposed on the outside of the sleeve 6, and the other end of the support shaft 7 is pin-connected to a second connecting ear 301 disposed on the inner wall of the movable plate 3. The support shaft 7 is arranged in an inclined state.

[0037] The sliding sleeve 6 is provided with a first positioning hole, and the top end of the positioning column 5 is provided with a plurality of second positioning holes 501 at equal intervals along the length direction of the positioning column 5; after the position adjustment of the sliding sleeve 6 is completed, the first positioning hole is connected to any second positioning hole 501 by a positioning bolt 602.

[0038] Limiting protrusions 603 are arranged on the inner walls on both sides of the sliding sleeve 6, and limiting grooves corresponding to the limiting protrusions 603 are arranged on the side walls of the positioning column 5, and the length direction of the limiting grooves is consistent with the length direction of the positioning column 5; when the sliding sleeve 6 is connected to the positioning column 5, the limiting protrusions 603 are located in the limiting grooves and can slide along the length direction of the limiting grooves.

[0039] When performing the adjustment operation, first open the adjustment opening, then remove the positioning bolt, and then push the two sliding sleeves on the positioning column to slide relatively close to or relatively away from each other. When the sliding sleeves slide, the position of the support shaft changes, so that the movable plate and the telescopic arm retract or extend, and finally the position adjustment of the spike mechanism is achieved (such as Figure 4 , Figure 5 , Figure 6 As shown); after adjustment, the first positioning hole and the corresponding second positioning hole can be reconnected by the positioning bolt; when adjusting, the sliding distance of the two sleeves needs to be kept consistent so that the two ends of the movable plate can remain in a parallel state.

[0040] The utility model improves the structure of the spike tooth mechanism so that when performing cement and soil mixing operations, it is only necessary to make the rotating roller drive the spike tooth mechanism to rotate, and the cone member in the spike tooth mechanism can easily crush and mix the flattened soil layer, thereby finally achieving the mixing and mixing effect between the cement and soil layers; at the same time, the utility model can control the telescopic mechanism through the adjustment mechanism, so as to adjust the distance between the spike tooth mechanism and the rotating shell body, and when performing crushing and mixing operations on deeper soil layers, it is only necessary to increase the distance between the spike tooth mechanism and the rotating shell body, and the spike tooth mechanism can enter the deeper soil layer for crushing and mixing operations when the rotating shell body rotates, thereby finally achieving the cement improved soil mixing and mixing operations in the deep soil layer; the utility model has a simple structure, and the mixing depth of the spike tooth mechanism can be adjusted according to the depth of the soil layer, so that it can be applied to soil layer operations of various depths, effectively improving the mixing and mixing effect of cement and soil layers, and bringing convenience to the mixing and mixing operations of cement improved soil.

Claims

1. A cement-improved soil mixing head, comprising a rotating roller, and a spike mechanism is arranged on the outer side of the rotating roller; characterized in that: The rotating roller includes a rotating shell, which is in the shape of a horizontally placed cylindrical shell. An adjusting mechanism is arranged inside the rotating shell and is connected to the telescopic mechanism through the adjusting mechanism. The telescopic mechanism is connected to the spike mechanism after extending out of the rotating shell. The telescopic mechanism includes a plurality of movable plates, which are all located inside the rotating shell and are arranged at equal intervals along the circumferential direction of the rotating shell. A side of the movable plate close to the axis of the rotating shell is connected to the adjusting mechanism, and a side of the movable plate close to the inner wall of the rotating shell is fixedly connected to a telescopic arm, which is connected to the spike mechanism after passing through a avoidance hole arranged on the side wall of the rotating shell.

2. The cement-improved soil mixing head according to claim 1, characterized in that: The movable plate is in the shape of an arc plate, the length direction of the movable plate is consistent with the axial direction of the rotating shell, a plurality of telescopic arms are arranged on the movable plate at equal intervals along the length direction of the movable plate, and the telescopic arms on adjacent movable plates are staggered.

3. The cement-improved soil mixing head according to claim 2, characterized in that: A plurality of guide sleeves are fixedly connected to the outside of the rotating shell, and the guide sleeves are arranged corresponding to the telescopic arm; the guide sleeves are arranged in a trapezoidal column shape, and a guide through hole is arranged inside the guide sleeve, and the guide through hole is connected to the avoidance hole; when the telescopic arm is connected to the rotating shell, one end of the telescopic arm passes through the avoidance hole and the guide through hole in sequence and is connected to the spike tooth mechanism.

4. The cement-improved soil mixing head according to claim 3, characterized in that: A mounting sleeve is welded to one end of the telescopic arm away from the movable plate, the axial direction of the mounting sleeve is perpendicular to the length direction of the telescopic arm and the axial direction of the rotating shell, and the mounting sleeve is detachably connected to the spike mechanism.

5. The cement-improved soil mixing head according to claim 4, characterized in that: The spike mechanism includes a mounting column and a cone member, one end of the mounting column is inserted into the mounting sleeve, and the other end of the mounting column is fixedly connected to the cone member, a first mounting hole is provided on the mounting column, and a second mounting hole is provided on the mounting sleeve, and the first mounting hole and the second mounting hole are plugged in by a latch member; the cone member is composed of a symmetrical combination of four groups of right-angle blades, and the outer edges of the four groups of right-angle blades are blade-shaped.

6. The cement-improved soil mixing head according to claim 5, characterized in that: The adjustment mechanism includes a positioning column, the length direction of the positioning column is consistent with the length direction of the rotating shell and the two are coaxially arranged, the two ends of the positioning column are respectively fixedly connected to the side walls on both sides of the rotating shell, and the outer side of the positioning column is slidably connected to two support components, the two support components are symmetrically arranged at the two ends of the movable plate and the support components are connected to the movable plate.

7. The cement-improved soil mixing head according to claim 6, characterized in that: The support assembly includes a sleeve and a support shaft. The sleeve is slidably connected to the positioning column and can slide along the length direction of the positioning column. A plurality of support shafts are arranged at equal intervals on the outside of the sleeve along the circumferential direction of the sleeve. One end of the support shaft is connected to a first connecting ear pin shaft arranged on the outside of the sleeve, and the other end of the support shaft is connected to a second connecting ear pin shaft arranged on the inner side wall of the movable plate. The support shaft is arranged in an inclined state.

8. The cement-improved soil mixing head according to claim 7, characterized in that: The sliding sleeve is provided with a first positioning hole, and a plurality of second positioning holes are provided at equal intervals on the top of the positioning column along the length direction of the positioning column; after the position adjustment of the sliding sleeve is completed, the first positioning hole is connected to any second positioning hole by a positioning bolt.

9. The cement-improved soil mixing head according to claim 8, characterized in that: Limiting protrusions are arranged on the inner walls on both sides of the sliding sleeve, and limiting grooves corresponding to the limiting protrusions are arranged on the side walls of the positioning column, and the length direction of the limiting grooves is consistent with the length direction of the positioning column; when the sliding sleeve is connected to the positioning column, the limiting protrusions are located in the limiting grooves and can slide along the length direction of the limiting grooves.

10. The cement-improved soil mixing head according to claim 9, characterized in that: The central positions of both sides of the outer end of the rotating shell are connected to the stirring device, and the side walls of both sides of the rotating shell are provided with adjustment openings, and the outer sides of the adjustment openings are bolted with opening and closing baffles.

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