Open caisson stirring and sucking equipment

Abstract

The invention relates to the technical field of open caisson construction equipment, in particular to open caisson stirring and sucking equipment which comprises a machine shell, a stirring and crushing assembly, a slurry discharging pipe, an underwater propeller and a posture stabilizing device, the posture stabilizing device comprises a transverse moving assembly and a lifting assembly, and the transverse moving assembly is used for controlling the machine shell to move along a preset track when the machine shell is pushed by the underwater propeller; by arranging the underwater propeller and the stirring and crushing assembly, transverse soil sampling is achieved, the construction blind area is reduced, the smashed soil layer slurry is pumped through the slurry discharging pipe, the sinking posture of the open caisson and the sinking speed of all positions are accurately controlled, and the construction efficiency is improved; by arranging the posture stabilizing device, it is guaranteed that the drill bit stably and transversely moves and perpendicularly abuts against the working face in the construction process, the drill bit is not prone to swinging in the stirring and sucking process, and the working efficiency and the engineering quality in the stirring and sucking process are improved; and the lifting assembly is folded, a gear lever limits movement of a sliding block, the positions of the machine shell and the posture stabilizing device are relatively fixed, and the equipment construction position is finely adjusted through an underwater propeller.

Description

Technical Field

[0001] The invention relates to the technical field of caisson construction equipment, and in particular to caisson stirring and suction equipment. Background Art

[0002] Caisson is a construction method mainly used for the foundation of a building or as an underground space. A pit of a certain shape (usually circular or rectangular) is excavated on the ground, and then a bottomless structure (i.e. caisson) is built inside it. The structure is then gradually excavated and sunk to the designed depth, eventually forming a stable underground space. Figure 7 As shown in the figure, during construction, taking a certain amount of soil from a specific position in the caisson (usually the side that sinks slower) horizontally can reduce the resistance to the sinking of the caisson at that location, prompt this side to speed up the sinking speed, and correct the caisson's posture. However, common caisson stirring and suction equipment has a large construction blind spot and can only take soil from the bottom of the shaft, but cannot take soil horizontally; or use a steerable connector to connect the drill bit to take soil diagonally downward. The center of gravity of this type of equipment is not stable enough when taking soil, and it is easy to collide with gravel, broken rock, etc. in the soil layer on the side below the shaft, causing the equipment to shift, making it difficult to accurately control the construction posture and construction position. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] The object of the present invention is to provide a caisson stirring and suction device, which provides the ability to take soil from the caisson horizontally and can stably control the construction posture and construction position.

[0005] 2. Technical Solution

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention provides a caisson stirring and suction device, comprising:

[0008] chassis;

[0009] The mixing and crushing assembly comprises a drill bit arranged at the front end of the casing, and a driving motor arranged in the casing for driving the drill bit to rotate;

[0010] A slurry discharge pipe, wherein the slurry discharge pipe is configured such that its inlet end extends to the front end of the casing near the drill bit, and its outlet end is arranged on the top surface of the casing and can be externally connected to a pump suction pipe;

[0011] An underwater propeller, which is disposed at the rear end of the housing and is configured to push the housing in a direction parallel to the axial direction of the drill bit;

[0012] The attitude stabilizing device includes a transverse movement component for controlling the movement of the casing along a predetermined trajectory when pushed by an underwater propeller, and a lifting component for controlling the movement of the casing along a longitudinal direction perpendicular to the axis of the drill bit. The predetermined trajectory is a displacement route that can make the casing approach or move away from the contact surface between the drill bit and the caisson.

[0013] According to an embodiment of the present invention, the transverse movement assembly includes a slider fixedly connected to the lower surface of the casing, and a slide rail, and the slider is slidably connected to the slide rail.

[0014] According to an embodiment of the present invention, the lifting assembly includes an upper cross bar, a lower cross bar, a first connecting rod and a second connecting rod, and a control member for adjusting the distance between the upper cross bar and the lower cross bar, the slide rail is fixedly connected above the upper cross bar; the first connecting rod and the second connecting rod are hinged in the middle, the upper end of the first connecting rod is hinged to one end of the upper cross bar, and the lower part of the second connecting rod is hinged to one end of the lower cross bar, a first pulley is fixed to the lower end of the first connecting rod, and a second pulley is fixed to the upper end of the second connecting rod, the first pulley is rollingly connected to the upper surface of the lower cross bar, and the second pulley is rollingly connected to the lower surface of the upper cross bar.

[0015] According to an embodiment of the present invention, the control component includes a top plate, a bottom plate, and two pairs of upper rotating rods and lower rotating rods hinged to each other at the ends; the top plate is fixedly connected to the upper cross bar, and the bottom plate is fixedly connected to the lower cross bar; the upper end of the upper rotating rod is rotatably connected to the bottom surface of the top plate, and the lower end of the lower rotating rod is rotatably connected to the surface of the bottom plate, and the connection points of the two pairs of upper rotating rods and the lower rotating rods are rotatably connected to threaded seats through pin shafts, and the threaded seats are threadedly connected to a screw rod, one of the threaded seats is fixedly connected to a fixing frame, and a waterproof motor is fixedly connected to the outside of the fixing frame, and the output end of the waterproof motor extends into the fixing frame and is transmission-connected to the shaft end of the screw rod through a reduction gear set to drive the screw rod to rotate.

[0016] According to an embodiment of the present invention, a through groove is provided on the surface of the upper cross bar, and the upper ends of the first connecting rod and the second connecting rod are fixedly connected with a shift rod, and two parallel baffles are fixed on the side of the slider. When the lifting assembly is folded, the two shift rods pass through the through groove and are respectively connected with the inner sides of the two baffles to limit the movement of the slider.

[0017] According to an embodiment of the present invention, posture stabilizing devices are provided on both sides below the housing, a plurality of spikes are provided at intervals on the lower surface of the lower crossbar, and the bottom plate is flush with the lower surface of the lower crossbar.

[0018] According to an embodiment of the present invention, lifting ears are arranged at four upper corners of the casing.

[0019] According to an embodiment of the present invention, a waterproof shell is fixedly connected to the outer side of the fixing frame.

[0020] According to an embodiment of the present invention, a sensor unit is arranged on the housing, and the sensor unit includes an ultrasonic sensor and a water depth sensor that are integrated.

[0021] 3. Beneficial Effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention realizes lateral soil taking by arranging underwater propellers and stirring and crushing components, reduces construction blind areas, and can pump the crushed soil layer mud through the slurry discharge pipe, accurately control the sinking posture of the caisson and the sinking speed at various locations, and improve construction efficiency.

[0024] 2. The present invention ensures that the drill bit moves stably laterally and vertically contacts the working surface during the construction process by setting up a posture stabilizing device, so that the drill bit is not easy to swing during the stirring and suction process, which greatly improves the work efficiency and project quality during the stirring and suction process; and the lifting assembly can be folded, and the gear lever limits the movement of the slider, so that the position of the casing and the posture stabilizing device is relatively fixed, and the construction position of the equipment is fine-tuned by the underwater thruster, which ensures the accuracy of the construction position and the stability of the moving process.

[0025] 3. By setting up the sensor unit, the construction position and construction posture of the detection equipment can be stabilized, which is conducive to accurately controlling the soil taking position and amount, controlling the settlement speed of the caisson, and correcting the caisson posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above contents and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the casing;

[0029] Figure 3 It is a schematic diagram of the structure of the attitude stabilization device;

[0030] Figure 4 yes Figure 3 The structural diagram of the other side;

[0031] Figure 5 It is a schematic diagram of the structure of the control unit;

[0032] Figure 6 yes Figure 4 Front perspective view of

[0033] Figure 7 It is a schematic diagram of the structure of the caisson;

[0034] 1. Casing;

[0035] 2. Mixing and crushing components;

[0036] 21. Drill bit;

[0037] 22. Driving motor;

[0038] 3. Slurry discharge pipe;

[0039] 4. Underwater propeller;

[0040] 5. Attitude stabilization device;

[0041] 51. Transverse movement assembly;

[0042] 511, slider;

[0043] 512, slide rail;

[0044] 513, baffle;

[0045] 52. Lifting assembly;

[0046] 521, upper horizontal bar;

[0047] 521a, through slot;

[0048] 522, lower horizontal bar;

[0049] 523, first connecting rod;

[0050] 524, second connecting rod;

[0051] 525. Control parts;

[0052] 5251, top plate;

[0053] 5252, bottom plate;

[0054] 5253, turn the lever upward;

[0055] 5254, lower rotating rod;

[0056] 5255, threaded seat;

[0057] 5256, fixed frame;

[0058] 5257, waterproof motor;

[0059] 5258, reduction gear set;

[0060] 5259, screw;

[0061] 526, first pulley;

[0062] 527, second pulley;

[0063] 528, gear lever;

[0064] 529, spikes;

[0065] 6. Lifting lugs;

[0066] 7. Waterproof shell;

[0067] 8. Sensor unit. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0069] It should be noted that, although the terms "first", "second", etc. may be used herein to describe various parts, components, elements, regions, layers and / or parts, these parts, components, elements, regions, layers and / or parts should not be limited by these terms. Instead, these terms are used to distinguish one part, component, element, region, layer and / or part from another. Thus, for example, the first part, first member, first element, first region, first layer and / or first part discussed below may be referred to as the second part, second member, second element, second region, second layer and / or second part without departing from the teachings of the present invention.

[0070] For ease of description, spatial relational terms, such as "upper", "lower", "left", "right", etc., may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figure. It should be understood that the spatial relational terms are intended to cover other different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the figure is turned upside down, elements described as "below" or "beneath" other elements or features will be oriented "above" or "above" the other elements or features.

[0071] A caisson stirring and suction device, see Figure 1-6, including a casing 1, a mixing and crushing component 2, a slurry discharge pipe 3, an underwater propeller 4 and a posture stabilizing device 5; the mixing and crushing component 2 includes a drill bit 21 and a drive motor 22, the drive motor 22 is arranged in the casing 1, the drill bit 21 is connected to the output end of the drive motor 22 and is located at the front end of the casing 1, and the drive motor 22 drives the drill bit 21 to rotate to crush and mix the soil layer at the bottom of the well; the slurry discharge pipe 3 has an inlet end and an outlet end, the main part of the slurry discharge pipe 3 is located in the casing 1, the inlet end extends to the front end of the casing 1 and is close to the drill bit 21, and the outlet end is arranged on the top surface of the casing 1 and can be externally connected to a flexible pump suction pipe, the pump suction pipe is connected to a mud pump, after the mixing and crushing component 2 crushes the soil layer, the mud is sucked into the inlet end of the slurry discharge pipe 3 and discharged, reducing the soil below the caisson, thereby controlling the settlement speed and settlement position of the caisson.

[0072] In the present invention, a sensor unit 8 is provided on the housing 1, and the sensor unit 8 includes an integrated ultrasonic sensor and a water depth sensor; the ultrasonic sensor is used to sense the distance between the drill bit 21 and the horizontal soil layer wall, and the water depth sensor is used to obtain the water depth position. The two sensors cooperate to accurately control the position of the device, which facilitates accurate stirring and suction of the excess soil layer under the caisson. In addition, the sensor unit 8 can also integrate a pressure sensor and an angle sensor to monitor the relative position of the device and the caisson underwater and the construction posture in real time.

[0073] An underwater propeller 4 is provided at the rear end of the casing 1, and an attitude stabilizing device 5 is provided below the casing 1; the underwater propeller 4 pushes the casing 1 to move laterally, and the direction of the lateral movement is parallel to the axial direction of the drill bit 21. The attitude stabilizing device 5 includes a lateral movement component 51 and a lifting component 52, wherein the lateral movement component 51 is used to control the casing 1 to move along a predetermined trajectory when pushed by the underwater propeller 4, and the predetermined trajectory is a displacement route that can make the casing 1 approach or move away from the contact surface between the drill bit 21 and the caisson. Preferably, the lateral movement component 51 includes a slider 511 fixedly connected to the lower surface of the casing 1, and a slide rail 512, the slider 511 is slidably connected to the slide rail 512, and the length direction of the slide rail 512 is parallel to the axial direction of the drill bit 21, and the predetermined trajectory is the direction in which the slider 511 moves along the slide rail 512;

[0074] The lifting assembly 52 is used to control the movement of the casing 1 in a longitudinal direction perpendicular to the axial direction of the drill bit 21; the lifting assembly 52 includes an upper cross bar 521, a lower cross bar 522, a first connecting rod 523 and a second connecting rod 524, and a control member 525 for adjusting the distance between the upper cross bar 521 and the lower cross bar 522, and the slide rail 512 is fixedly connected above the upper cross bar 521; the first connecting rod 523 and the second connecting rod 524 are hinged in the middle, the upper end of the first connecting rod 523 is hinged to one end of the upper cross bar 521, and the lower part of the second connecting rod 524 is hinged to one end of the lower cross bar 522, a first pulley 526 is fixed to the lower end of the first connecting rod 523, and a second pulley 527 is fixed to the upper end of the second connecting rod 524, the first pulley 526 is rollingly connected to the upper surface of the lower cross bar 522, and the second pulley 527 is rollingly connected to the lower surface of the upper cross bar 521. A through slot 521a is formed on the surface of the upper crossbar 521, a stopper 528 is fixedly connected to the upper ends of the first connecting rod 523 and the second connecting rod 524, and two parallel baffles 513 are fixed to the side of the slider 511;

[0075] When the lifting assembly 52 is folded, the two shift rods 528 pass through the through slot 521a and are respectively connected with the inner sides of the two baffles 513 to limit the movement of the slider 511; when the lifting assembly 52 is unfolded, the shift rod 528 rotates with the first connecting rod 523 and the second connecting rod 524 to move its end below the through slot 521a, and the shift rod 528 is out of contact with the baffle 513. At this time, the slider 511 can drive the casing 1 to slide along the slide rail 512, the underwater thruster 4 is started, pushing the casing 1 to move horizontally, and the drill bit 21 breaks the horizontal soil layer located on the side below the shaft.

[0076] As an embodiment of the present invention, please refer to Figure 3-6 The control member 525 includes a top plate 5251, a bottom plate 5252, two pairs of upper rotating rods 5253 and a lower rotating rod 5254. The upper rotating rod 5253 and the lower rotating rod 5254 are hinged to each other at one end. The upper end of the upper rotating rod 5253 is rotatably connected to the bottom surface of the top plate 5251, and the lower end of the lower rotating rod 5254 is rotatably connected to the surface of the bottom plate 5252. The two pairs of upper rotating rods 5253 and the lower rotating rod 5254 are symmetrically arranged and enclosed in a diamond shape. The top plate 5251 is fixedly connected to the upper cross bar 521, and the bottom plate 5252 is fixedly connected to the lower cross bar 522.

[0077] The connection points of the two pairs of upper rotating rods 5253 and the lower rotating rods 5254 are both rotatably connected with threaded seats 5255 through pin shafts, and the threaded seats 5255 are threadedly connected with a screw rod, and the threaded seats 5255 are screw rod nut 5259 matched with the screw rod, and one of the threaded seats 5255 is fixedly connected with a fixing frame 5256, and a waterproof motor 5257 is fixedly connected to the outside of the fixing frame 5256, and the output end of the waterproof motor 5257 extends into the fixing frame 5256 and is connected to the shaft end of the screw rod through a reduction gear set 5258. The outside of the fixing frame 5256 is fixedly connected There is a waterproof shell 7, which is used to isolate the reduction gear set 5258 from water; the waterproof motor 5257 drives the reduction gear set 5258 to rotate, the reduction gear set 5258 drives the screw to rotate, the screw drives the threaded seat 5255 to move along the axial direction of the screw, the threaded seat 5255 drives the upper rotating rod 5253 and the lower rotating rod 5254 to rotate to control the distance between the top plate 5251 and the bottom plate 5252, the top plate 5251 and the bottom plate 5252 respectively drive the upper cross bar 521 and the lower cross bar 522 to move so that the lower cross bar 522 moves away from and close to the upper cross bar 521.

[0078] In the present invention, attitude stabilizing devices 5 are provided on both sides below the housing 1 , a plurality of spikes 529 are provided at intervals on the lower surface of the lower cross bar 522 , and the bottom plate 5252 is flush with the lower surface of the lower cross bar 522 . Lifting ears 6 are provided at the four corners above the casing 1. The equipment is hoisted into the well near the side of the well, and the waterproof motor 5257 rotates to drive the screw to rotate, and the screw drives the threaded seat 5255 to move, and the threaded seat 5255 drives the upper rotating rod 5253 and the lower rotating rod 5254 to rotate, and the upper rotating rod 5253 and the lower rotating rod 5254 drive the top plate 5251 and the bottom plate 5252 to move, so that the upper cross bar 521 and the lower cross bar 522 are separated from each other, and the spike 529 under the lower cross bar 522 breaks into the bottom of the well until the bottom plate 5252 fits with the bottom of the well, and the water between the bottom plate 5252 and the soil layer at the bottom of the well is drained to generate a certain adsorption force. At the same time, the spike 529 breaks into the soil layer to fix the position of the lifting component 52.

[0079] In the process of hoisting and moving the device to adjust the stirring and suction position below the caisson, the control member 525 drives the upper cross bar 521 and the lower cross bar 522 to approach each other so that the lifting assembly 52 is in a folded state. At this time, the gear rod 528 passes through the through slot 521a to the top of the upper cross bar 521, and the two gear rods 528 respectively contact the inner sides of the two baffles 513 to fix the position of the slider 511. The slider 511, the lifting assembly 52 and the casing 1 are fixed in relative position. The position of the device can be roughly adjusted by hoisting, or the device can be fine-tuned and moved toward the horizontal soil wall direction by pushing the underwater propeller 4, and the movement can be improved. Stability during the process; when the equipment is moved into place, the control member 525 drives the upper cross bar 521 and the lower cross bar 522 to approach each other and the lifting assembly 52 is in the expanded state. At this time, the gear lever 528 moves to the bottom of the through slot 521a and disengages from the baffle 513, and the housing 1 can move along the slide rail 512. At the same time, the spike 529 under the lower cross bar 522 is inserted into the soil layer to fix the position of the lifting assembly 52. ​​Starting the underwater propeller 4 can make the drill bit 21 move laterally stably and vertically contact the working surface, so that the drill bit 21 is not easy to swing during the stirring and suction process, which greatly improves the work efficiency and engineering quality during the stirring and suction process.

[0080] It will be appreciated by those skilled in the art that the features described in the various embodiments of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, without departing from the spirit and teachings of the present invention, the features described in the various embodiments of the present invention may be combined and / or combined in various ways. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A caisson stirring and suction device, characterized in that: include: chassis; The mixing and crushing assembly comprises a drill bit arranged at the front end of the casing, and a driving motor arranged in the casing for driving the drill bit to rotate; A slurry discharge pipe, wherein the slurry discharge pipe is configured such that its inlet end extends to the front end of the casing near the drill bit, and its outlet end is arranged on the top surface of the casing and can be externally connected to a pump suction pipe; An underwater propeller, which is disposed at the rear end of the housing and is configured to push the housing in a direction parallel to the axial direction of the drill bit; The attitude stabilizing device includes a transverse movement component for controlling the movement of the casing along a predetermined trajectory when pushed by an underwater propeller, and a lifting component for controlling the movement of the casing along a longitudinal direction perpendicular to the axis of the drill bit. The predetermined trajectory is a displacement route that can make the casing approach or move away from the contact surface between the drill bit and the caisson.

2. The caisson stirring and suction equipment according to claim 1, characterized in that: The transverse movement assembly comprises a sliding block fixedly connected to the lower surface of the casing, and a sliding rail, wherein the sliding block is slidably connected to the sliding rail.

3. The caisson stirring and suction equipment according to claim 2, characterized in that: The lifting assembly includes an upper cross bar, a lower cross bar, a first connecting rod and a second connecting rod, and a control member for adjusting the distance between the upper cross bar and the lower cross bar. The slide rail is fixedly connected above the upper cross bar; the first connecting rod and the second connecting rod are hinged in the middle, the upper end of the first connecting rod is hinged to one end of the upper cross bar, and the lower part of the second connecting rod is hinged to one end of the lower cross bar. A first pulley is fixed to the lower end of the first connecting rod, and a second pulley is fixed to the upper end of the second connecting rod. The first pulley is rollingly connected to the upper surface of the lower cross bar, and the second pulley is rollingly connected to the lower surface of the upper cross bar.

4. The caisson stirring and suction equipment according to claim 3, characterized in that: The control component includes a top plate, a bottom plate, and two pairs of upper rotating rods and lower rotating rods hinged to each other at the ends; the top plate is fixedly connected to the upper cross bar, and the bottom plate is fixedly connected to the lower cross bar; the upper end of the upper rotating rod is rotatably connected to the bottom surface of the top plate, and the lower end of the lower rotating rod is rotatably connected to the surface of the bottom plate, and the connection points of the two pairs of upper rotating rods and the lower rotating rods are rotatably connected to threaded seats through pin shafts, and the threaded seats are threadedly connected to screw rods, one of the threaded seats is fixedly connected to a fixing frame, and a waterproof motor is fixedly connected to the outside of the fixing frame, and the output end of the waterproof motor extends into the fixing frame and is transmission-connected to the shaft end of the screw rod through a reduction gear set to drive the screw rod to rotate.

5. The caisson stirring and suction equipment according to claim 4, characterized in that: A through slot is provided on the surface of the upper cross bar, and the upper ends of the first connecting rod and the second connecting rod are fixedly connected with a shift rod, and two parallel baffles are fixed on the side of the slider. When the lifting assembly is folded, the two shift rods pass through the through slot and are respectively connected to the inner sides of the two baffles to limit the movement of the slider.

6. A caisson stirring and suction device according to claim 4 or 5, characterized in that: Attitude stabilizing devices are arranged on both sides below the housing, a plurality of spikes are arranged at intervals on the lower surface of the lower cross bar, and the bottom plate is flush with the lower surface of the lower cross bar.

7. The caisson stirring and suction equipment according to claim 6, characterized in that: Lifting ears are arranged at the four corners above the casing.

8. The caisson stirring and suction equipment according to claim 4, characterized in that: The outer side of the fixing frame is fixedly connected with a waterproof shell.

9. The caisson stirring and suction equipment according to claim 1, characterized in that: The housing is provided with a sensor unit, and the sensor unit comprises an integrated ultrasonic sensor and a water depth sensor.

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