Roadbed soft soil solidification stirring device

Abstract

The utility model provides a roadbed soft soil solidification stirring device which comprises a stirring mechanism installed on a vehicle body, the stirring mechanism comprises a stirring shaft and a stirring head arranged at the tail end of the stirring shaft, and a plurality of stirring blades are fixedly arranged on the stirring head; the cleaning device further comprises a cleaning unit, the cleaning unit comprises a cleaning liquid storage box and a spray head, the spray head is fixedly arranged on the stirring blades, a hollow channel used for conveying cleaning liquid is arranged in the stirring shaft, one end of the hollow channel is communicated with the cleaning liquid storage box, and the other end of the hollow channel is communicated with the spray head. According to the stirring head cleaning device, the cleaning process of the stirring head is completed through the arranged cleaning unit, the cleaning unit is combined with the stirring head, the cleaning process of the stirring head can be completed through the arranged cleaning unit, materials left on the stirring head are prevented from affecting next use, and construction continuity and stability are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to road engineering technical field especially, relate to a kind of roadbed soft soil solidification mixing device. BACKGROUND

[0002] In-situ solidification technology as a new soft soil foundation treatment method, mixing natural soft soil relies on special mixing head, the mixing head currently used includes left and right two mixing drums, such as the utility model number for 201810092800.9, the utility model name is a kind of ground solidification mixing head of Chinese patent, and the utility model number for 202022162557.9, the utility model name is silt in-situ mixer of Chinese patent.For the soft soil with greater mobility, such as silt, the above existing mixing head can be easily inserted into soil for mixing, but there are deficiencies in mixing efficiency and mixing head cleaning, if the soft soil adhered to the mixing head is not cleaned after completing mixing operation, the soft soil adhered to it is easy to affect the next operation process, and the solidified soft soil will greatly affect construction quality and efficiency. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problems that the prior art has defects, and provides a roadbed soft soil solidification mixing device, which is convenient for cleaning the mixing head after mixing operation, so that the influence of residual materials on next use is avoided.

[0004] To solve the above technical problems, the utility model adopts the technical scheme of a kind of roadbed soft soil solidification mixing device, including the mixing mechanism installed on the vehicle body, the mixing mechanism is driven by control unit regulation driving unit, curing agent adding unit is fixed on the mixing mechanism;

[0005] The mixing mechanism includes a mixing shaft and a mixing head arranged at the end of the mixing shaft, and a plurality of stirring blades are fixedly arranged on the mixing head;

[0006] Further, the cleaning unit includes a cleaning liquid storage tank and a spray head, the spray head is fixedly arranged on the stirring blade, a hollow channel for conveying cleaning liquid is arranged in the mixing shaft, one end of the hollow channel is communicated with the cleaning liquid storage tank, and the other end is communicated with the spray head.

[0007] Further, the cleaning unit further includes a recovery device, the recovery device is fixedly arranged on the vehicle body, and the output end of the recovery device is communicated with the waste liquid storage tank.

[0008] Further, a booster unit is arranged in the mixing shaft, the booster unit receives cleaning liquid from the hollow channel and conveys the cleaning liquid into the spray head.

[0009] Further, the driving unit comprises a motor and a transmission device, the transmission device is connected with the rotating shaft of the motor and the stirring head, so as to assist the motor to drive the stirring head to complete the stirring rotation process.

[0010] Further, the curing agent adding unit comprises a curing agent storage tank and a conveying pipeline, the conveying pipeline is fixedly arranged based on the stirring shaft, one end of the conveying pipeline is communicated with the curing agent storage tank, and the other end of the conveying pipeline is fixedly arranged above the stirring head.

[0011] Further, a metering unit is further arranged above the conveying pipeline, so as to detect the flow of the curing agent in the conveying pipeline.

[0012] Further, the signal output end of the control unit is communicated with the signal receiving end of the driving unit, the curing agent adding unit and the cleaning unit, so as to control the stirring process, the curing agent adding process and the cleaning process, and the signal receiving end of the control unit is also communicated with the signal output end of the metering unit.

[0013] Compared with the prior art, the beneficial effects of the utility model include:

[0014] 1) The cleaning process of the stirring head is completed through the cleaning unit, the cleaning unit is combined with the stirring head, specifically, the channel for conveying the cleaning liquid is arranged in the stirring shaft, and the spray head for spraying the cleaning liquid is arranged based on the stirring blade or the stirring shaft, through the cleaning unit, the cleaning process of the stirring head can be completed, the residual material on the stirring head is avoided to affect the next use, and the continuity and stability of the construction are ensured.

[0015] 2) The adding amount of the curing agent can be accurately controlled through the curing agent adding unit, so that the cost is saved, and the environmental pollution is reduced, and the control unit is arranged to control the stirring process, the curing agent adding process and the cleaning process. BRIEF DESCRIPTION OF DRAWINGS

[0016] The disclosure of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0017] Figure 1 The running principle of the subgrade soft soil curing and stirring device is schematically shown;

[0018] Figure 2 The overall structure of the subgrade soft soil curing and stirring device is schematically shown;

[0019] Figure 3 The forward cross-sectional structure of the subgrade soft soil curing and stirring device is schematically shown.

[0020] Reference numerals: 1 - stirring shaft, 2 - stirring head, 3 - stirring blade, 4 - motor, 5 - transmission device, 6 - conveying pipeline, 7 - hollow channel, 8 - spray head. DETAILED DESCRIPTION

[0021] It is easy to understand that according to the technical scheme of the utility model, a person skilled in the art can propose a plurality of structure modes and implementation modes which can be replaced with each other without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction of the technical scheme of the utility model.

[0022] Figure 1 The operation principle of the subgrade soft soil solidification stirring device is schematically shown, Figure 2 The overall structure of the subgrade soft soil solidification stirring device is schematically shown. Figure 3 The forward cross-sectional structure of the subgrade soft soil solidification stirring device is schematically shown. A subgrade soft soil solidification stirring device as shown in Figure 1 and Figure 2 As shown, the stirring mechanism is mounted on the vehicle body and driven by a driving unit to complete the stirring action. The driving unit is controlled by a control unit to start or not to start and to control the speed of the driving stirring mechanism. The solidifying agent adding unit is fixed on the stirring mechanism. During the stirring operation, the solidifying agent adding unit supplies solidifying agent to the soft soil area of the subgrade as needed. Then, the stirring mechanism completes the stirring process, so that the solidifying agent supplied to the soft soil of the subgrade can be uniformly dispersed in the area, providing sufficient conditions for the solidification of the soft soil of the area.

[0023] As shown in Figure 3 The stirring mechanism includes a stirring shaft 1 and a stirring head 2 arranged at the end of the stirring shaft 1. A plurality of stirring blades 3 are fixedly arranged on the stirring head 2. The stirring head 2 is fixedly arranged on the opposite left and right sides of the stirring shaft 1. The stirring head 2 can be symmetrically arranged at an angle perpendicular to the horizontal plane or symmetrically arranged at an angle of a certain angle between the lower sides of the stirring heads 2 on both sides and the stirring shaft 1. The utility model does not specifically limit the arrangement of the stirring head 2 on the stirring shaft 1.

[0024] In order to facilitate the cleaning of the stirring head 2 after the stirring operation, a cleaning unit is also provided, including a cleaning liquid storage tank and a spray head 8 fixedly arranged above the stirring blade 3. A hollow channel 7 for conveying cleaning liquid is arranged along the length direction of the stirring shaft 1 in the stirring shaft 1. One end of the hollow channel 7 is in communication with the cleaning liquid storage tank, and the other end is in communication with the spray head 8. After the cleaning liquid is conveyed to the spray head 8 through the hollow channel 7, the spray head 8 is used to complete the flushing of the stirring head 2. In order to facilitate the arrangement of the spray head 8, a conveying channel matched with the spray head 8 is arranged in the stirring blade 3 and in communication with the hollow channel 7 and the spray head 8.

[0025] In the foregoing embodiment, only the hollow channel 7 is used to convey the cleaning liquid, and then the spray head 8 is used to spray or flush the cleaning liquid onto the stirring head 2. However, for soft soil, it has certain adhesion, and only the spraying or flushing method may not be able to achieve a better cleaning process of the stirring head 2. Therefore, a booster unit (not shown), such as a booster valve, can be arranged in the stirring shaft 1. After the cleaning liquid is conveyed by the hollow channel 7, the cleaning liquid is pressurized by the booster valve and then enters the position of the spray head 8. Then the cleaning liquid is sprayed out of the spray head 8. By the action of high pressure and cleaning liquid, compared with the foregoing embodiment, the soft soil adhered to the stirring head 2 can be better removed.

[0026] However, in the foregoing embodiment, the spray head 8 is arranged on the stirring blade 3, and the stirring blade 3 rotates with the stirring head 2. Therefore, the spray head 8 actually located on the stirring blade 3 can only clean the stirring head 2 in the front area. The soft soil adhered to the blade itself and the soft soil adhered to other positions of the stirring head 2 cannot be cleaned. In addition, the arrangement of the spray head 8 on the stirring blade 3 requires that a conveying channel be arranged in the stirring blade 3 to convey the cleaning liquid. The arrangement of the conveying channel will inevitably affect the strength of the stirring blade 3. Therefore, when the stirring blade 3 is manufactured, the strength requirement of the stirring blade 3 itself is higher. Therefore, in order to facilitate the cleaning of the stirring blade 3 and the stirring head 2 at the same time and reduce the strength requirement of the stirring blade 3 itself, the spray head 8 is arranged on the stirring shaft 1. Figure 3As shown, the nozzle can be arranged based on the stirring shaft 1, a housing is arranged outside the stirring shaft 1, the stirring shaft 1 is arranged in the housing, the hollow channel 7 inside the stirring shaft 1 is arranged in the housing outside the stirring shaft 1, and the nozzle is arranged in the housing towards the stirring head 2. When the stirring head 2 needs to be cleaned, the nozzle sprays high-pressure cleaning liquid to the stirring head 2 and the stirring blades 3 to complete the cleaning process. The stirring head 2 and the stirring blades 3 can be cleaned in a static state by driving the stirring head 2 to rotate by the driving unit, so as to ensure that the stirring head 2 and the stirring blades 3 are clean after stirring, thereby avoiding the influence of residual materials on the next use. It should be noted that, in order to avoid soft soil entering the inside of the nozzle and the housing during operation and affecting the stirring operation of the stirring head 2, a door body can be arranged on the side of the stirring shaft 1 facing the stirring head 2. The door body can be arranged to slide open in the transverse direction of the stirring shaft 1 to avoid soft soil entering the inside of the housing from the vertical direction.

[0027] It should be noted that the cleaning unit further comprises a recovery device fixedly arranged on the vehicle body, and the output end of the recovery device is in communication with the waste liquid storage tank. In use, the stirring head 2 is arranged above the recovery device. After the nozzle 8 completes the cleaning of the stirring head 2, most of the waste liquid falls into the recovery device and then flows into the waste liquid storage tank for collection, and the waste liquid is then treated.

[0028] The driving unit comprises a motor 4 and a transmission device 5. The driving unit is arranged in the stirring shaft 1, the transmission device 5 is connected to the rotating shaft of the motor 4 and the stirring head 2, and is used to assist the motor 4 to drive the stirring head 2 to complete the stirring rotation process. The transmission device 5 comprises a shaft coupling, a bevel gear set, a driving shaft and a driven shaft. The shaft coupling is used to connect the driving shaft and the rotating shaft of the motor 4 as a whole, so as to ensure the coaxial rotation therebetween. The bevel gear set is used to drive the driven shaft to rotate while considering the requirement of reversing, so as to drive the stirring head 2 on both sides of the stirring shaft 1 to drive the stirring blades 3 thereon to rotate.

[0029] The aforementioned solidifying agent adding unit comprises a solidifying agent storage tank and a conveying pipeline 6 fixedly arranged based on the stirring shaft 1, one end of the conveying pipeline 6 is communicated with the solidifying agent storage tank, and the other end is fixedly arranged above the stirring head 2; a metering unit is further arranged above the conveying pipeline 6 for detecting the flow of the solidifying agent in the conveying pipeline 6, and a valve body can be arranged above the conveying pipeline 6 for regulating whether the solidifying agent is outputted. After the spraying of the solidifying agent to the stirring operation area above the stirring head 2 is completed, the stirring mechanism is used to complete the stirring operation on the area, so as to uniformly mix the soft soil and the sprayed solidifying agent. In order to ensure the spraying effect, a nozzle 8 is arranged at the end of the conveying pipeline 6 to complete the spraying process of the solidifying agent.

[0030] The control process of the control unit is specifically described as follows. The signal output end of the control unit is communicated with the signal receiving end of the driving unit, the solidifying agent adding unit and the cleaning unit, so as to regulate the stirring process, the solidifying agent adding process and the cleaning process, including but not limited to the stirring time and the stirring speed, the solidifying agent adding amount and the adding speed in the solidifying agent adding process; the signal receiving end of the control unit is also communicated with the signal output end of the metering unit, so as to monitor the conveying amount of the solidifying agent in the conveying pipeline 6 in real time, thereby providing a basis for regulating the content of the solidifying agent added in the fixed area.

[0031] The cleaning process of the stirring head 2 is completed by the cleaning unit, and the cleaning unit is combined with the stirring head 2. Specifically, the channel for conveying the cleaning liquid is arranged in the stirring shaft 1, and the nozzle 8 for spraying the cleaning liquid is arranged based on the stirring blade 3 or the stirring shaft 1. Through the cleaning unit, the cleaning process of the stirring head 2 can be completed, the residual materials on the stirring head 2 are removed, the next use is not affected, the continuity and stability of the construction are ensured; the solidifying agent adding unit can accurately control the adding amount of the solidifying agent, thereby saving the cost and reducing the environmental pollution; and the control unit is arranged to regulate the stirring process, the solidifying agent adding process and the cleaning process.

[0032] The technical scope of the utility model is not limited to the content in the foregoing description. Those skilled in the art can make various modifications and changes to the foregoing embodiments without departing from the technical thought of the utility model, and these modifications and changes shall belong to the protection scope of the utility model.

Claims

1. A subgrade soft soil solidification mixing device, characterized in that, Including the stirring mechanism installed on the vehicle body, the stirring mechanism is driven by the control unit to drive the driving unit, and the curing agent adding unit is fixed on the stirring mechanism; The stirring mechanism includes a stirring shaft (1) and a stirring head (2) arranged at the end of the stirring shaft (1), and a plurality of stirring blades (3) are fixedly arranged on the stirring head (2); It also includes a cleaning unit, which includes a cleaning liquid storage tank and a spray head (8), the spray head (8) is fixedly arranged on the stirring blade (3), and a hollow channel (7) for conveying cleaning liquid is arranged in the stirring shaft (1), one end of the hollow channel (7) is communicated with the cleaning liquid storage tank, and the other end is communicated with the spray head (8).

2. The embankment soft soil solidifying and mixing device according to claim 1, characterized in that, The cleaning unit also includes a recycling device, which is fixedly arranged on the vehicle body, and the output end of the recycling device is communicated with the waste liquid storage tank.

3. The embankment soft soil solidifying and mixing device according to claim 1, characterized in that, A booster unit is also arranged in the stirring shaft (1), which receives cleaning liquid from the hollow channel (7) and delivers it to the spray head (8).

4. The embankment soft-soil solidifying and mixing apparatus according to claim 1, wherein The driving unit includes a motor (4) and a transmission device (5), the transmission device (5) connects the rotating shaft of the motor (4) and the stirring head (2), which is used to assist the motor (4) to drive the stirring head (2) to complete the stirring rotation process.

5. The subgrade soft ground solidification mixing apparatus of claim 1, wherein, The curing agent adding unit includes a curing agent storage tank and a conveying pipeline (6), the conveying pipeline (6) is fixedly arranged based on the stirring shaft (1), one end of which is communicated with the curing agent storage tank, and the other end is fixedly arranged above the stirring head (2).

6. The embankment soft soil solidifying and mixing device according to claim 5, characterized in that, A metering unit is also arranged on the conveying pipeline (6) for detecting the flow of curing agent in the conveying pipeline (6).

7. The embankment soft soil solidifying and mixing device according to claim 6, characterized in that, The signal output end of the control unit is communicated with the signal receiving end of the driving unit, the curing agent adding unit and the cleaning unit, so as to control the stirring process, the curing agent adding process and the cleaning process, and the signal receiving end of the control unit is also communicated with the signal output end of the metering unit.

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