A wetland self-balancing work device

Abstract

The application relates to a wetland self-balancing working device, relating to soft foundation construction equipment. The application comprises a working frame and a transverse stirring roller; the transverse stirring roller is hingedly arranged on the working frame and the pitch angle of the transverse stirring roller is adjusted through a small-arm linear driving mechanism hingedly connected therewith. A flattening float is hingedly arranged at the tail of the working frame and is used for assisting in supporting the working frame to walk on the mud surface. The device is stirred through the transverse stirring roller hung at the rear of the device when the screw roller provides power propulsion. The stirred place is flattened through the flattening float, and the flattening float can also provide certain buoyancy; the pitch angle of the working frame is adjusted through a large-arm linear driving mechanism, and the stirring depth of the transverse stirring roller is adjusted through a small-arm linear driving mechanism. The application has the characteristics of compact structure, site leveling after the sludge is solidified and dried, and efficient and simple subsequent construction.

Description

Technical Field

[0001] This invention relates to soft soil foundation construction equipment, and more particularly to a wetland self-balancing working device, which is especially suitable for treating coastal soft soil and road soft soil. Background Technology

[0002] Currently, the main technologies for soft soil foundation solidification treatment include sludge solidification technology, cement mixing pile technology, and high-pressure jet grouting pile technology. Sludge solidification technology can treat large areas of in-situ soft soil foundations, but it requires manual assistance during construction, resulting in relatively low construction efficiency.

[0003] The cement mixing pile technology has the following problems:

[0004] 1) The equipment used does not have the function of walking on the tidal flats. During the construction of soft soil foundation, it is necessary to set up an operating platform in advance, which is not only costly but also inefficient.

[0005] 2) Due to the limitations of the mixing system, the treatment effect on soft soil foundations varies greatly from good to poor.

[0006] High-pressure jet grouting pile technology has good pile formation results, but it has the following problems:

[0007] 1) The equipment used does not have the function of walking on the tidal flats. During the construction of soft soil foundation, it is necessary to set up an operating platform in advance, which is not only costly but also inefficient.

[0008] 2) The equipment used is relatively large;

[0009] 3) It uses a lot of cement, which is costly and not suitable for treating large areas of soft soil. It is more suitable for treating local soft soil.

[0010] To address the aforementioned issues, existing patent literature, such as the soft soil solidification treatment equipment disclosed on May 27, 2015, includes a working platform, a walking system capable of moving freely on the mudflat, and a movable cement mixing system mounted on the working platform. The working platform has a working window for the cement mixing system to operate, and the walking system is installed at the bottom of the working platform. By installing the walking system at the bottom of the working platform, the soft soil solidification treatment equipment can move freely on the mudflat without the need for a separate platform, thus reducing construction costs and improving efficiency. While this patent solves the problem of movement on soft soil, the vertical solidification design results in discontinuous operation and unevenness of the mixed surface after operation. Summary of the Invention

[0011] To address the above problems, this invention provides a wetland self-balancing working device with a compact structure, which allows for efficient and simple subsequent construction after the sludge has been solidified and dried, resulting in a flat site.

[0012] The technical solution of this invention is: a wetland self-balancing working device, comprising:

[0013] The work frame, wherein the head of the work frame is hinged to the tail of the work platform;

[0014] A transverse stirring roller is provided, which is hinged to the work frame and its pitch angle is adjusted by a linear drive mechanism of a forearm hinged thereto.

[0015] Specifically, it also includes:

[0016] The leveling pontoon is hinged at the tail of the working frame to assist in supporting the working frame as it moves on the mud surface.

[0017] Specifically, a hinged boom linear drive mechanism is provided between the work frame and the tail of the work platform.

[0018] Specifically, the forearm linear drive mechanism includes a forearm hydraulic cylinder, a forearm pneumatic cylinder, or a forearm electric push rod.

[0019] Specifically, the boom linear drive mechanism includes a boom hydraulic cylinder, a boom pneumatic cylinder, or a boom electric push rod.

[0020] Specifically, the cross-section of the work frame is a right-angled triangular structure.

[0021] Specifically, the bottom of the work platform is equipped with a hinged spiral roller propeller, which enables the work platform to move.

[0022] Specifically, the surface of the transverse stirring roller is provided with a plurality of evenly distributed stirring blades.

[0023] A hydraulic control system for a wetland self-balancing working device includes a gear pump, a three-position four-way solenoid directional valve, a hydraulic lock, and a boom cylinder connected in sequence.

[0024] Two sets of adjustment modules are provided between the hydraulic lock and the boom cylinder; one set is connected to the rodless chamber of the boom cylinder, and the other set is connected to the rod chamber of the boom cylinder.

[0025] The regulating module includes a one-way throttle valve, a two-position two-way solenoid directional valve, and a direct-acting relief valve;

[0026] The two-position two-way solenoid directional valve and the direct-acting relief valve are connected in series and connected to the oil tank;

[0027] The one-way throttle valve is connected in parallel with the two-position two-way solenoid directional valve and is connected to the oil tank.

[0028] Specifically, a check valve is provided between the three-position four-way solenoid directional valve and the gear pump;

[0029] An electromagnetic overflow valve connected to the oil tank is provided between the one-way valve and the gear pump.

[0030] This invention includes a working frame and a transverse stirring roller. The transverse stirring roller is hinged to the working frame, and its pitch angle is adjusted by a linear drive mechanism of the forearm, which is also hinged to it. A leveling float is hinged to the rear of the working frame to assist in supporting the frame's movement on the mud surface. When the spiral drum provides power for propulsion, the equipment stirs the mud by suspending the transverse stirring roller behind it. After stirring, the mud surface is leveled by the leveling float, which also provides some buoyancy. The pitch angle of the working frame is adjusted by the linear drive mechanism of the upper arm, and the stirring depth of the transverse stirring roller is adjusted by the linear drive mechanism of the forearm. This invention features a compact structure, a leveled site after the sludge has solidified and dried, and efficient and simple subsequent construction. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 This is a schematic diagram of a structure with two spiral roller propellers arranged in parallel.

[0033] Figure 3 This is a schematic diagram of the connection between the transverse stirring roller and the working frame.

[0034] Figure 4 This is the hydraulic control schematic diagram of the boom cylinder;

[0035] In the diagram, 100 represents the working platform, and 110 represents the screw roller propeller.

[0036] 200 is the work frame, and 210 is the linear drive mechanism for the boom.

[0037] 300 is the transverse stirring roller, 301 is the stirring blade, and 310 is the linear drive mechanism for the forearm.

[0038] 400 is for leveling the pontoons.

[0039] 510 is a gear pump, 520 is a three-position four-way solenoid directional valve, 530 is a hydraulic lock, 540 is a boom cylinder, 550 is a check valve, and 560 is a solenoid relief valve.

[0040] 600 is the adjustment module.

[0041] 610 is a one-way throttle valve, 620 is a two-position two-way solenoid directional valve, and 630 is a direct-acting relief valve.

[0042] 710 is the suction filter, and 720 is the return filter.

[0043] 810 is a two-position four-way solenoid directional valve, and 820 is an air cooler. Detailed Implementation

[0044] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0045] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The present invention is as follows Figure 1-3 As shown; a wetland self-balancing working device, comprising:

[0048] The work frame 200 is hinged at its head to the tail of the work platform 100;

[0049] A transverse stirring roller 300 is hinged to the work frame 200, and the pitch angle of the transverse stirring roller 300 is adjusted by a linear drive mechanism 310 of the forearm that is hinged to it.

[0050] Further restrictions also include:

[0051] A leveling pontoon 400 is hinged at the tail of the work frame 200 to assist in supporting the work frame 200 as it moves on the mud surface.

[0052] The majority of the weight borne by the rear working frame 200 is supported by the boom cylinder 540 through hydraulic pressure, while the remaining small portion of the weight is supported by the flattening float 400 used for flattening. This achieves a self-balancing effect during operation. The entire working device will flatten the previously mixed soil within a certain range, ensuring a certain degree of flatness. After the silt has solidified and dried, the entire site is relatively flat, making subsequent construction more convenient.

[0053] Furthermore, a hinged boom linear drive mechanism 210 is provided between the tail of the work frame 200 and the work platform 100, and the pitch angle of the work frame 200 is adjusted by the boom linear drive mechanism 210.

[0054] The forearm linear drive mechanism 310 includes a forearm hydraulic cylinder, a forearm pneumatic cylinder, or a forearm electric push rod.

[0055] The boom linear drive mechanism 210 includes a boom hydraulic cylinder 540, a boom pneumatic cylinder, or a boom electric push rod.

[0056] The equipment uses a spiral drum for propulsion and a horizontal mixing roller 300 suspended behind it for mixing. After mixing, the mud surface is leveled by a leveling float 400, which also provides some buoyancy. The pitch angle of the work frame 200 is adjusted by the boom linear drive mechanism 210, and the mixing depth of the horizontal mixing roller 300 is adjusted by the forearm linear drive mechanism 310.

[0057] Furthermore, the cross-section of the work frame 200 is a right-angled triangular structure, which not only reduces material usage but also ensures the stability of the work frame 200. In this case, the boom linear drive mechanism 210 and the forearm linear drive mechanism 310 are preferably hydraulic cylinders. The cylinder body of the boom hydraulic cylinder 540 is hinged to the work platform 100, and the piston rod end is hinged to the inclined surface of the triangular structure.

[0058] Further specifying, the bottom of the working platform 100 is equipped with a hinged spiral roller propeller 110, which enables the working platform 100 to move. In this case, preferably two spiral roller propellers 110 are used to move the working platform 100. The spiral roller propellers 110 provide both buoyancy and forward thrust, allowing the equipment to move and stir the silt simultaneously. This forces the soft soil and the solidifying agent to be thoroughly mixed in situ, causing a series of physical and chemical reactions between them. This hardens the soft soil into hard soil with integrity, water stability, and a certain strength, achieving the purpose of soft soil solidification.

[0059] Further specifying, the surface of the transverse stirring roller 300 is provided with a plurality of evenly distributed stirring blades 301 for mixing and stirring the curing agent and sludge. In this case, the transverse stirring roller 300 is driven to rotate by an electro-hydraulic system.

[0060] The hydraulic control system of the wetland self-balancing working device includes a gear pump 510, a three-position four-way solenoid directional valve 520, a hydraulic lock 530 and a boom cylinder 540 connected in sequence.

[0061] Two sets of adjustment modules 600 are provided between the hydraulic lock 530 and the boom cylinder 540; one set is connected to the rodless chamber of the boom cylinder 540, and the other set is connected to the rod chamber of the boom cylinder 540.

[0062] The regulating module 600 includes a one-way throttle valve 610, a two-position two-way solenoid directional valve 620, and a direct-acting relief valve 630.

[0063] The two-position two-way solenoid directional valve 620 and the direct-acting relief valve 630 are connected in series and connected to the oil tank;

[0064] The one-way throttle valve 610 is connected in parallel with the two-position two-way solenoid directional valve 620 and is connected to the oil tank.

[0065] Further optimization involves providing a check valve 550 between the three-position four-way solenoid directional valve 520 and the gear pump 510.

[0066] An electromagnetic overflow valve 560, which is connected to the oil tank, is provided between the one-way valve 550 and the gear pump 510.

[0067] Further optimization involves connecting the gear pump 510 to the oil tank via the oil suction filter 710.

[0068] Further optimization includes a hydraulic control system for a wetland self-balancing working device that also comprises an air cooler 820 and a two-position four-way solenoid directional valve 810 connected in sequence. The air cooler 820 is connected to the oil tank via a return oil filter 720.

[0069] In this case, the boom cylinder 540 is supplied with oil via gear pump 510, and the maximum pressure of the system is regulated by solenoid relief valve 560. After being operated to the corresponding position by three-position four-way solenoid directional valve 520, the pressurized oil passes through hydraulic lock 530 and enters boom cylinder 540 to control the boom lifting height, thereby controlling the height of the entire work frame.

[0070] After the three-position four-way solenoid directional valve 520 is operated to the corresponding position on the left or right, the pressurized oil enters the boom cylinder 540 after passing through the hydraulic lock 530, controlling the boom lifting height to control the height of the entire work frame.

[0071] When the three-position four-way solenoid directional valve 520 is operated to the neutral position, the hydraulic lock 530 will automatically lock the oil circuit to ensure that the oil cylinder will not move up and down, so that the rear working frame will be in a fixed position or angle.

[0072] When the equipment operates on soft ground, the terrain is not always perfectly flat and may vary in height. This causes the equipment to bounce up and down in a wavy pattern during operation. The working device, mounted at the rear of the equipment, has a certain weight, which can lead to fatigue at the connection points between the working device and the main structure. Prolonged up-and-down movement can result in fatigue fracture. Our company has implemented a special design in the hydraulic system to address this issue. This allows the working device to automatically adjust its position according to the terrain as the equipment moves up and down.

[0073] Working in complex environments, the soft ground surface is bound to be uneven. To adapt to this uneven working environment, we have installed a one-way throttle valve 610, a two-position two-tank solenoid directional valve, and a direct-acting relief valve 630 between the hydraulic lock 530 and the boom cylinder 540. The pressure of the direct-acting relief valve 630 is set to a certain value to ensure that the pressure it provides can withstand most of the weight of the working frame (including the leveling float and transverse stirring roller connected to the working frame). When the two-position two-way solenoid directional valve 620 is opened, the excess pressure in the boom cylinder 540 will be discharged back to the oil tank through the direct-acting relief valve 630 connected to the rod chamber. The flattening roller in the rear working device of the work platform will provide a portion of the buoyancy. This ensures that the entire rear device maintains a self-balancing state under a certain oil pressure, including the supporting force of the boom cylinder 540, the buoyancy of the flattening roller, and the gravity of the rear device. The function of the one-way throttle valve 610 is to cause the oil cylinder to extend and retract within a certain range when the rear device swings up and down. The extended oil cylinder chamber will be short of oil, and at this time the oil in the oil tank will replenish the oil to the oil cylinder chamber through the one-way throttle valve 610.

[0074] Regarding the information disclosed in this case, the following points need to be clarified:

[0075] (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case; other structures can refer to the general design.

[0076] (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments;

[0077] The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. A wetland self-balancing working device, characterized in that, include: The work frame has its head hinged to the tail of the work platform; a boom linear drive mechanism is provided between the work frame and the tail of the work platform, and the pitch angle of the work frame is adjusted by the boom linear drive mechanism; the boom linear drive mechanism includes a boom cylinder. A transverse stirring roller, hinged to the work frame, has its pitch angle adjusted by a linear drive mechanism with a hinged forearm; and The hydraulic control system includes a gear pump, a three-position four-way solenoid directional valve, a hydraulic lock, and a boom cylinder connected in sequence. Two sets of adjustment modules are provided between the hydraulic lock and the boom cylinder; one set communicates with the rodless chamber of the boom cylinder, and the other set communicates with the rod chamber of the boom cylinder. Each adjustment module includes a one-way throttle valve, a two-position two-way solenoid directional valve, and a direct-acting relief valve. The two-position two-way solenoid directional valve and the direct-acting relief valve are connected in series and connected to the oil tank. The one-way throttle valve and the two-position two-way solenoid directional valve are connected in parallel and connected to the oil tank. When the two-position two-way solenoid directional valve is opened, the excess pressure in the boom cylinder is discharged back to the oil tank through the direct-acting relief valve connected to the rod chamber. Meanwhile, the flattening roller at the rear of the work platform provides some buoyancy, ensuring that the boom cylinder support force, flattening roller buoyancy, and gravity of the entire rear device maintain a self-balancing state under a certain oil pressure.

2. The wetland self-balancing working device according to claim 1, characterized in that, Also includes: The leveling pontoon is hinged at the tail of the working frame to assist in supporting the working frame as it moves on the mud surface.

3. The wetland self-balancing working device according to claim 1, characterized in that, The forearm linear drive mechanism includes a forearm hydraulic cylinder, a forearm pneumatic cylinder, or a forearm electric push rod.

4. A wetland self-balancing working device according to claim 1, characterized in that, The cross-section of the work frame is a right-angled triangle.

5. A wetland self-balancing working device according to claim 1, characterized in that, The bottom of the work platform is equipped with a hinged spiral roller propeller, which enables the work platform to move.

6. A wetland self-balancing working device according to claim 1, characterized in that, The surface of the transverse stirring roller is provided with several evenly distributed stirring blades.

7. A wetland self-balancing working device according to claim 1, characterized in that, A check valve is provided between the three-position four-way solenoid directional valve and the gear pump. An electromagnetic overflow valve connected to the oil tank is provided between the one-way valve and the gear pump.

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