Rectangular pile foundation trenching device, excavating apparatus, and rectangular pile foundation trenching method

Abstract

The application provides a rectangular pile foundation trenching device, a digging equipment and a rectangular pile foundation trenching method, and relates to the technical field of building construction. The rectangular pile foundation trenching device comprises a mounting frame, a milling wheel assembly and a slag collecting cylinder. The mounting frame is used for connecting the output end of the digging equipment. The milling wheel assembly is arranged below the mounting frame. The slag collecting cylinder is arranged below the milling wheel assembly, and an upwardly open slag collecting cavity is arranged on the slag collecting cylinder. In the application, in the process of digging the rectangular trench, the slag collecting cylinder can collect slag along with the downward feeding of the milling wheel assembly, and the collected slag is more easily discharged, so that the efficiency of the rectangular pile hole forming is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a rectangular pile foundation trenching device, a digging equipment and a rectangular pile foundation trenching method. BACKGROUND

[0002] The rectangular pile foundation refers to a pile foundation with a rectangular cross-section. Compared with a circular pile, the rectangular pile has better bending resistance and anti-sliding capacity, and is lower in cost. Therefore, in the field of pile foundation construction, there is an increasing demand for rectangular pile foundation trenching devices.

[0003] The current rectangular pile foundation trenching device is provided with a milling wheel to mill a rectangular trench. However, a large amount of slag is generated during milling by the milling wheel, and the accumulated slag is not easy to discharge from the rectangular trench, thereby affecting the efficiency of rectangular pile hole forming. SUMMARY

[0004] The present application aims to solve the problem that the accumulated slag is not easy to discharge from the rectangular trench during milling by the current rectangular pile foundation trenching device, thereby affecting the efficiency of rectangular pile hole forming.

[0005] To solve the above problems, the present application provides a rectangular pile foundation trenching device for a digging equipment, which comprises a mounting frame, a milling wheel assembly and a slag collecting cylinder. The mounting frame is used to connect the output end of the digging equipment. The milling wheel assembly is arranged below the mounting frame. The slag collecting cylinder is arranged below the milling wheel assembly, and an upwardly open slag collecting cavity is arranged on the slag collecting cylinder.

[0006] Optionally, the bottom of the slag collecting cavity is provided with an open door body.

[0007] Optionally, the sidewall surface of the slag collecting cylinder is used to abut and cooperate with the inner wall surface of the guide hole to be formed.

[0008] Optionally, the milling wheel assembly comprises two milling wheel mechanisms, which are arranged side by side below the mounting frame along a first horizontal direction.

[0009] Optionally, the milling wheel assembly further comprises two yaw mechanisms, which are arranged on the mounting frame and connected to the two milling wheel mechanisms respectively. The yaw mechanism is adjustable in pose to adjust the milling area of the corresponding milling wheel mechanism in the horizontal plane.

[0010] Optionally, the yawing mechanism comprises a connecting plate assembly and two yawing oil cylinders, the connecting plate assembly has a first end and a second end oppositely arranged in the first horizontal direction, the first end of the connecting plate assembly is hinged to the mounting frame, the connecting plate assembly is connected to the corresponding milling wheel mechanism, the upper ends of the two yawing oil cylinders are both hinged to the mounting frame, and the lower ends are respectively hinged to the two ends of the connecting plate assembly in the second horizontal direction, and the second horizontal direction is arranged perpendicular to the first horizontal direction.

[0011] Optionally, the rectangular pile foundation trench forming device further comprises a plurality of correction mechanisms, the plurality of correction mechanisms are arranged on the side wall of the mounting frame in a spaced manner along the circumference of the mounting frame, each correction mechanism has a movable part, the movable part is movably arranged in the direction of approaching and moving away from the side wall of the mounting frame, and the movable part is used for abutting against the excavated inner wall of the rectangular trench; and / or the rectangular pile foundation trench forming device further comprises a plurality of wear-resistant plates, the plurality of wear-resistant plates are arranged on the side wall of the mounting frame in a spaced manner along the circumference of the mounting frame.

[0012] In addition, the application also provides a digging equipment comprising the above-mentioned rectangular pile foundation trench forming device.

[0013] Since the technical improvement and the technical effects of the digging equipment are the same as those of the rectangular pile foundation trench forming device, the technical effects of the digging equipment will not be described in detail.

[0014] Compared with the prior art, the rectangular pile foundation trench forming device provided by the application has the following technical effects, but is not limited to the following technical effects:

[0015] In the rectangular pile foundation trench forming device, the mounting frame is connected to the output end of the digging equipment, and the milling wheel assembly is arranged below the mounting frame, so that when the digging equipment provides a downward feeding force to the mounting frame through the output end, the mounting frame can drive the milling wheel assembly to feed downward for milling, thereby realizing the excavation of the rectangular trench. In addition, the slag collecting cylinder is arranged below the milling wheel assembly, and the slag collecting cavity with an upward opening is arranged on the slag collecting cylinder, so that when slag is generated during the milling of the milling wheel assembly, the slag can fall into the slag collecting cavity, thereby collecting the slag. Therefore, during the excavation of the rectangular trench, the slag collecting cylinder can collect the slag along with the downward feeding of the milling wheel assembly, the collected slag is easier to discharge, and the rectangular pile hole forming efficiency is higher.

[0016] In addition, the application also provides a rectangular pile foundation trench forming method based on the above-mentioned digging equipment, and the rectangular pile foundation trench forming method comprises the following steps:

[0017] Moving the digging equipment to the vicinity of the to-be-formed guide hole, and placing the slag collecting cylinder in the to-be-formed guide hole through the output end of the digging equipment;

[0018] The milling wheel assembly mills the hole wall of the to-be-grooved guide hole, so that the milled slag stone falls into the slag collecting cylinder.

[0019] Optionally, the milling wheel assembly comprises two milling wheel mechanisms, and the two milling wheel mechanisms are arranged side by side below the mounting frame in the first horizontal direction.

[0020] The milling of the hole wall of the to-be-grooved guide hole by the milling wheel assembly comprises:

[0021] The two milling wheel mechanisms mill the two opposite hole walls of the to-be-grooved guide hole respectively, so as to form a rectangular groove.

[0022] Compared with the prior art, the rectangular pile foundation grooving method provided by the present application has the following technical effects, but is not limited thereto:

[0023] The rectangular pile foundation grooving method provided by the present application first places the slag collecting cylinder in the to-be-grooved guide hole, and then mills the to-be-grooved guide hole by the milling wheel assembly, so that the milled slag stone can fall into the slag collecting cylinder in a large amount, and the slag collecting effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application.

[0025] Figure 2 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application. Figure 1

[0026] It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application. Figure 3 Figure 1 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application.

[0027] Figure 4 Figure 1 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application.

[0028] Figure 5 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application. Figure 2

[0029] It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application. Figure 6 Figure 1 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application.

[0030] Figure 7 It is a structure front view of the rectangular pile foundation grooving device in the embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS

[0032] ​​​1-mounting frame, 11-frame, 2-milling wheel assembly, 21-milling wheel mechanism, 22-oscillation mechanism, 221-up and down oscillation shaft, 222-left and right oscillation shaft, 223-connection plate assembly, 223a-first connection plate, 223b-second connection plate, 224-oscillation oil cylinder, 3-slag collecting cylinder, 31-door body, 4-connection column, 5-correction mechanism, 51-supporting seat, 52-pressing plate, 521-movable part, 53-connection arm, 54-first telescopic driving part, 6-wear plate, 7-control cabinet, 8-bag type compensator, 9-output end. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0034] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0035] In addition, the X-axis in the drawings represents the horizontal direction and is designated as the left-right position, and the positive direction of the X-axis represents the left direction, and accordingly, the negative direction of the X-axis represents the right direction; the Y-axis in the drawings also represents the horizontal direction and is designated as the front-rear position, and the positive direction of the Y-axis represents the front direction, and accordingly, the negative direction of the Y-axis represents the rear direction; the Z-axis in the drawings represents the vertical direction, that is, the up-down position, and the positive direction of the Z-axis represents the upward direction, and accordingly, the negative direction of the Z-axis represents the downward direction, it should be noted that the meanings of the aforementioned X-axis, Y-axis and Z-axis are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0036] In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme.

[0037] The rectangular slot excavation method of the rectangular pile foundation forming device is: first, using a rotary drilling pile foundation equipment to rotary drill a circular guide hole on the ground, and then using the rectangular pile foundation forming device to feed and excavate along the axis of the circular guide hole to mill and remove the soil layer of the hole wall of the circular guide hole, so as to form the required rectangular slot. However, the soil layer of the hole wall of the circular guide hole will become slag after being milled and removed, and will fall into the bottom of the circular guide hole. If the slag is not discharged in time, it will affect the feeding and milling of the rectangular pile foundation forming device, thereby affecting the efficiency of the rectangular pile hole forming.

[0038] In view of this, the present application provides a rectangular pile foundation trenching device, Figures 1 to 7 The present application provides a rectangular pile foundation trenching device.

[0039] Please refer to Figure 1 and Figure 2 The rectangular pile foundation trenching device is used for a digging equipment, and the rectangular pile foundation trenching device comprises a mounting frame 1, a milling wheel assembly 2 and a slag collecting cylinder 3. The mounting frame 1 is used for connecting an output end 9 of the digging equipment. The milling wheel assembly 2 is arranged below the mounting frame 1. The slag collecting cylinder 3 is arranged below the milling wheel assembly 2, and the slag collecting cylinder 3 is provided with a slag collecting cavity (not shown in the figure) which is upwardly open.

[0040] The output end 9 of the digging equipment, i.e. the output end 9 of the main machine of the digging equipment, can input electricity, hydraulic pressure or feeding force to the rectangular pile foundation trenching device. The feeding force input to the rectangular pile foundation trenching device by the output end 9 is exemplarily described. Specifically, the output end 9 can be arranged as a movable piece which can be fed up and down. During the milling and digging by using the rectangular pile foundation trenching device, the mounting frame 1 is connected to the movable piece. The movable piece can drive the rectangular pile foundation trenching device to be lifted as a whole during the lifting process of the movable piece. In some cases, the lifting of the movable piece can drive the rectangular pile foundation trenching device to be lifted, and the lowering of the movable piece can drive the rectangular pile foundation trenching device to be lowered. The lowering of the rectangular pile foundation trenching device can realize the downward feeding of the milling and digging operation of the rectangular pile foundation trenching device. Specifically, in the embodiment, the movable piece is exemplarily described as a drill rod. At this time, the mounting frame 1 is connected to the drill rod by a pin shaft.

[0041] In the rectangular pile foundation trenching device of the present application, the mounting frame 1 is connected to the output end 9 of the digging equipment, and the milling wheel assembly 2 is arranged below the mounting frame 1. When the digging equipment provides the downward feeding force to the mounting frame 1 through the output end 9, the mounting frame 1 can drive the milling wheel assembly 2 to be fed downward for milling, so as to realize the digging of the rectangular trench. In addition, the slag collecting cylinder 3 is arranged below the milling wheel assembly 2, and the slag collecting cylinder 3 is provided with the slag collecting cavity which is upwardly open. When the milling wheel assembly 2 mills the slag, the slag can fall into the slag collecting cavity, so as to collect the slag. In this way, during the digging of the rectangular trench, the slag collecting cylinder 3 can collect the slag along with the downward feeding of the milling wheel assembly 2. The collected slag is easier to be discharged, and the rectangular pile hole forming efficiency is higher.

[0042] Please refer to Figure 1 and Figure 3 The bottom of the slag collecting cavity is arranged to be open. The bottom of the slag collecting cavity is provided with a door body 31 which can be opened and closed.

[0043] The present application does not limit the specific manner in which the door body 31 is opened and closed. For example, the door body 31 is hinged to the slag collecting cylinder 3 and is arranged corresponding to the bottom opening of the slag collecting cavity. In this way, the door body 31 is at the two limit positions of the rotation stroke, which correspond to the position of opening the bottom opening and the position of closing the bottom opening. For another example, the door body 31 is slidingly installed on the slag collecting cylinder 3 and is arranged corresponding to the bottom opening of the slag collecting cavity. In this way, the door body 31 is at the two limit positions of the sliding stroke, which correspond to the position of opening the bottom opening and the position of closing the bottom opening. Of course, the door body 31 can also be opened and closed in other ways, which will not be described here. Specifically, in the present embodiment, one end of the door body 31 is hinged to one side of the bottom opening of the slag collecting cavity, and the other end of the door body 31 is connected to the other side of the bottom opening of the slag collecting cavity through a latch structure. In this way, when the latch of the latch structure is pulled out, the door body 31 can be rotated to open and close the bottom opening. When the latch of the latch structure is not pulled out, the door body 31 is fixed relative to the bottom opening, and the door body 31 remains in the position of closing the bottom opening.

[0044] In this way, by arranging the door body 31 which can be opened and closed at the bottom opening of the slag collecting cavity, when the slag stones in the slag collecting cavity are full, the rectangular pile foundation trenching device can be lifted upward, and the slag collecting cylinder 3 is lifted out of the bottom surface. At this time, the slag can be discharged by opening the door body 31, which is convenient and simple to operate.

[0045] Preferably, the side wall surface of the slag collecting cylinder 3 is used to abut and cooperate with the inner wall surface of the guide hole to be grooved.

[0046] In this way, by abutting and cooperating the side wall surface of the slag collecting cylinder 3 with the inner wall surface of the guide hole to be grooved, the slag collecting cylinder 3 can move downward along the axis of the guide hole to be grooved, thereby providing a guiding effect for the downward feeding and excavation of the entire rectangular pile foundation trenching device, and ensuring that the entire rectangular pile foundation trenching device can be vertically excavated downward.

[0047] Preferably, the size of the slag collecting cylinder 3 in the first horizontal direction is less than or equal to the size of the milling wheel assembly 2 in the first horizontal direction, and the size of the slag collecting cylinder 3 in the second horizontal direction is less than or equal to the size of the milling wheel assembly 2 in the second horizontal direction. Specifically, in the present embodiment, the slag collecting cylinder 3 is a cylindrical cylinder, the diameter of the cylindrical cylinder is less than or equal to the length of the milling wheel assembly 2, and the diameter of the cylindrical cylinder is less than or equal to the width of the milling wheel assembly 2. In this way, the projection of the slag collecting cylinder 3 in the vertical direction is inside the projection area of the milling wheel assembly 2 in the vertical direction, so that the milling wheel assembly 2 exceeds the slag collecting cylinder 3 outwardly along the first horizontal direction and the second horizontal direction, avoiding interference between the downward feeding stroke of the milling wheel assembly 2 and the downward moving stroke of the slag collecting cylinder 3, and facilitating the slag collecting cylinder 3 to collect slag stones.

[0048] Preferably, the size of the mounting frame 1 in the first horizontal direction is less than or equal to the size of the milling wheel assembly 2 in the first horizontal direction, and the size of the mounting frame 1 in the second horizontal direction is less than or equal to the size of the milling wheel assembly 2 in the second horizontal direction. In particular in the embodiment, the length of the mounting frame 1 is less than or equal to the length of the milling wheel assembly 2, and the width of the mounting frame 1 is less than or equal to the width of the milling wheel assembly 2. In this way, the projections of the mounting frame 1 in the vertical direction are all inside the projection area of the milling wheel assembly 2 in the vertical direction, so that the milling wheel assembly 2 protrudes outwardly beyond the mounting frame 1 in both the first horizontal direction and the second horizontal direction, avoiding interference between the downward feeding stroke of the milling wheel assembly 2 and the downward moving stroke of the mounting frame 1, and facilitating the milling and excavation of the milling wheel assembly 2.

[0049] Please refer to Figure 1 and Figure 4 Preferably, the milling wheel assembly 2 comprises two milling wheel mechanisms 21, which are arranged side by side below the mounting frame 1 in the first horizontal direction.

[0050] It should be noted that the number of milling wheels included in each milling wheel mechanism 21 can be one or more (two or more), and when the number of milling wheels is more than one, the milling wheels are arranged coaxially; and the first horizontal direction can be any horizontal direction parallel to the X-axis direction in the drawings, which is not limited by the present application.

[0051] In particular, in the embodiment, the mounting frame 1 comprises a frame 11, which is connected to the slag collecting cylinder 3 through the connecting column 4, and the two milling wheel mechanisms 21 are arranged below the frame 11 and are respectively located on both sides of the connecting column 4 in the first horizontal direction.

[0052] In this way, by arranging the milling wheel assembly 2 as two milling wheel mechanisms 21, the two milling wheel mechanisms 21 can mill on both sides at the same time, forming a rectangular slot in one operation without the need for secondary operation, improving the efficiency of milling and excavation, and the collision reaction force of the rock wall on the two sets of milling wheel mechanisms 21 during the milling and excavation process can be offset, which is beneficial to reduce the damage to the milling wheel mechanisms 21.

[0053] In some embodiments, the connecting column 4 and the frame 11 are detachably connected. If the rock soil at the to-be-slotted guide hole is relatively soft and the rock soil reaction force is relatively small, the connecting column 4 together with the slag collecting cylinder 3 can be detached from the frame 11, that is, the slag collecting cylinder 3 is avoided to be arranged, and the milling wheel mechanism 21 can directly reach the bottom of the to-be-slotted guide hole during the milling and excavation process, so that the milling and excavation effect is better; and it is also convenient to detach and replace the slag collecting cylinder 3 to adapt to different sizes of to-be-slotted guide holes.

[0054] Further, please refer to Figure 1 , Figure 4 and Figure 5The milling wheel assembly 2 further comprises two yawing mechanisms 22, each of which is arranged on the mounting frame 1 and connected to the corresponding milling wheel mechanism 21, and the yawing mechanism 22 is adjustable in position to adjust the milling area of the corresponding milling wheel mechanism 21 in the horizontal plane.

[0055] The yawing mechanism 22 can be adjusted in position in the up-down direction (rotating around the up-down swing axis 221), in the left-right direction (rotating around the left-right swing axis 222), or in the up-down and left-right directions simultaneously.

[0056] In this way, the yawing mechanism 22 is adjusted in position, and the yawing mechanism 22 can drive the milling wheel mechanism 21 to yaw after yawing, so that the milling wheel mechanism 21 can avoid the support installed on the inner wall of the rectangular groove by yawing during the reaming and digging milling.

[0057] Preferably, please continue to refer to Figure 1 、 Figure 4 and Figure 5 The yawing mechanism 22 comprises a connecting plate assembly 223 and two yawing oil cylinders 224, the connecting plate assembly 223 has a first end and a second end arranged opposite in the first horizontal direction, the first end of the connecting plate assembly 223 is hinged to the mounting frame 1, the connecting plate assembly 223 is connected to the corresponding milling wheel mechanism 21, and the upper ends of the two yawing oil cylinders 224 are hinged to the mounting frame 1, and the lower ends are respectively hinged to the two ends of the connecting plate assembly 223 in the second horizontal direction, and the second horizontal direction is arranged perpendicular to the first horizontal direction.

[0058] The second horizontal direction can be any horizontal direction parallel to the Y-axis direction in the drawings, and the present application does not make any limitation; the specific structure of the connecting plate assembly 223 is not limited, and specifically, in the embodiment, the connecting plate assembly 223 on the right side is specifically described, as shown in Figure 4 and Figure 5 The connecting plate assembly 223 comprises a first connecting plate 223a and a second connecting plate 223b, the right end of the first connecting plate 223a is hinged to the mounting frame 1, the upper end surface of the second connecting plate 223b is connected to the first connecting plate 223a, and the upper ends of the two yawing oil cylinders 224 are hinged to the mounting frame 1, and the lower ends are respectively hinged to the two ends of the second connecting plate 223b in the second horizontal direction.

[0059] The specific working process of the yawing mechanism 22 is described as follows: Figure 7 Figure 7 ​The top view of the rectangular groove milling is shown, the middle circular area is the to-be-grooved pilot hole, the A area and the A1 area on both sides of the to-be-grooved pilot hole are the excavation faces, and the B area, the B1 area, the C area, the C1 area, the D area and the D1 area on the periphery are the supporting excavation faces (used for supporting installation). When the two deflection oil cylinders 224 are in the initial state, the two milling wheel mechanisms 21 are just milling the A area and the A1 area, respectively. When the two deflection oil cylinders 224 of each deflection mechanism 22 are synchronously retracted, the connecting plate assembly 223 is driven to rotate around the up-down swing shaft 221, the pose is deflected upward, and the two milling wheel mechanisms 21 mill the B area and the B1 area, respectively. When only one of the two deflection oil cylinders 224 of each deflection mechanism 22 is retracted, the connecting plate assembly 223 is driven to rotate around the left-right swing shaft 222, and the two milling wheel mechanisms 21 mill the C area and the C1 area, respectively. Similarly, the two milling wheel mechanisms 21 can also mill the D area and the D1 area, respectively.

[0060] In this way, by hingedly connecting the upper ends of the two deflection oil cylinders 224 to the mounting frame 1 and hingedly connecting the lower ends of the two deflection oil cylinders 224 to the two ends of the connecting plate assembly 223 in the second horizontal direction, synchronous extension and retraction or asynchronous extension and retraction of the two deflection oil cylinders 224 can drive the connecting plate assembly 223 to deflect, thereby adjusting the pose of the connecting plate assembly 223. The deflection mechanism 22 has a simple structure and is convenient to control.

[0061] Preferably, please refer to Figure 1 , Figure 2 and Figure 6 , the rectangular pile foundation grooving device further comprises a plurality of correction mechanisms 5, the plurality of correction mechanisms 5 are arranged on the side wall of the mounting frame 1 in a spaced manner along the circumference of the mounting frame 1, each correction mechanism 5 has a movable part 521, the movable part 521 is movably arranged in the direction of approaching and moving away from the side wall of the mounting frame 1, and the movable part 521 is used for abutting against the excavated inner wall of the rectangular groove.

[0062] Specifically, in the embodiment, the mounting frame 1 has two first side walls oppositely arranged along the X-axis direction and two second side walls oppositely arranged along the Y-axis direction, two correction mechanisms 5 are arranged on each first side wall and each second side wall, the movable part 521 of the correction mechanism 5 on the first side wall is movably arranged along the X-axis direction, and the movable part 521 of the correction mechanism 5 on the second side wall is movably arranged along the Y-axis direction. More specifically, in the embodiment, the correction mechanism 5 includes a support seat 51, a pressing plate 52, two connecting arms 53, and a first telescopic driving member 54, the support seat 51 is arranged on the mounting frame 1, the pressing plate 52 is located outside the support seat 51, the two connecting arms 53 are located between the support seat 51 and the pressing plate 52, and the two ends of each connecting arm 53 are hingedly connected to the support seat 51 and the pressing plate 52, respectively, one end of the first telescopic driving member 54 is hingedly connected to the hinged connection between one of the connecting arms 53 and the support seat 51, and the other end is hingedly connected to the hinged connection between the other connecting arm 53 and the pressing plate 52, and the outer side of the pressing plate 52 constitutes the movable part 521, when the first telescopic driving member 54 is retracted, the outer side of the pressing plate 52 moves in the direction of approaching the side wall of the mounting frame 1, and when the first telescopic driving member 54 is extended, the outer side of the pressing plate 52 moves in the direction of moving away from the side wall of the mounting frame 1.

[0063] In this way, by arranging the correction mechanism 5 on the side wall of the mounting frame 1, and the correction mechanism 5 having the movable part 521 movably arranged in the direction of approaching and moving away from the side wall of the mounting frame 1, during the milling and digging process, the movable part 521 abuts against the already dug inner wall of the rectangular groove, when the movable part 521 moves, the distance between the side wall of the mounting frame 1 and the already dug inner wall of the rectangular groove changes, thereby adjusting the perpendicularity of the downward feeding of the entire rectangular pile foundation trench forming device, and further better ensuring the perpendicularity of the rectangular groove, and the perpendicularity adjusting effect of the correction mechanism 5 cooperates with the downward feeding guiding effect of the slag collecting cylinder 3, further ensuring the vertical downward digging of the entire rectangular pile foundation trench forming device, in addition, the movable part 521 abutting against the already dug inner wall of the rectangular groove will generate a pressing friction force with the already dug inner wall, thereby providing a certain supporting reaction force for the milling wheel assembly 2, the milling wheel assembly 2 mills more smoothly, which is beneficial to improving the milling efficiency.

[0064] Preferably, please continue to refer to Figure 1 and Figure 2 The rectangular pile foundation trench forming device further comprises a plurality of wear-resistant plates 6, and the plurality of wear-resistant plates 6 are arranged on the side wall of the mounting frame 1 in a spaced manner along the circumferential direction of the mounting frame 1.

[0065] In this way, by arranging the wear-resistant plate 6 on the side wall of the mounting frame 1, when milling and digging, the already dug inner wall of the rectangular groove will contact the wear-resistant plate 6, rather than directly contacting the mounting frame 1, thereby protecting the mounting frame 1 from shock and sliding, and preventing the collision caused by milling hard stone blocks from damaging the internal structure of the mounting frame 1.

[0066] Specifically, in the embodiment, the rectangular pile foundation trenching device further comprises a control cabinet 7 and a bladder compensator 8, both of which are arranged in the mounting frame 1, the control cabinet 7 has waterproof and dustproof functions, ensuring reliable control in an underwater environment, the milling wheel mechanism 21 is a hydraulic drive type milling wheel mechanism 21, and the bladder compensator 8 is arranged on a hydraulic circuit of the milling wheel mechanism 21. The structure of the milling wheel mechanism 21 can adopt related technologies, for example, the milling wheel mechanism 21 comprises a hydraulic motor, a speed reducer and a milling wheel, the hydraulic motor is drivingly connected to the milling wheel through the speed reducer, the hydraulic motor and the speed reducer are arranged below the mounting frame 1, and a hard milling head is arranged on the milling wheel. The bladder compensator 8 can be used to conveniently observe the working state of the milling wheel mechanism 21 and balance and compensate the pressure of the milling wheel mechanism 21, and the bladder compensator 8 is a conventional arrangement in the field, which will not be described in detail here.

[0067] The application further provides a digging equipment comprising the rectangular pile foundation trenching device.

[0068] The application further provides a rectangular pile foundation trenching method based on the digging equipment, which comprises the following steps.

[0069] In step S100, the digging equipment is moved to the vicinity of a to-be-trenched guide hole, and the slag collecting cylinder 3 is placed in the to-be-trenched guide hole through the output end 9 of the digging equipment.

[0070] In step S100, the slag collecting cylinder 3 is placed in the to-be-trenched guide hole, so that the milling wheel assembly 2 of the rectangular pile foundation trenching device performs rectangular groove milling. Specifically, the output end 9 (a moving part) of the digging equipment is fed downward, thereby driving the mounting frame 1 connected to the output end 9 to move downward, and then the slag collecting cylinder 3 is dropped into the to-be-trenched guide hole, so that the slag collecting cylinder 3 is placed in the to-be-trenched guide hole.

[0071] In step S200, the hole wall of the to-be-trenched guide hole is milled by the milling wheel assembly 2, so that the milled slag stones enter the slag collecting cylinder 3.

[0072] In step S200, milling and slag collecting are realized. Specifically, the milling wheel assembly 2 is fed downward for milling, and in this process, the milled slag stones will fall into the slag collecting cylinder 3 in the to-be-trenched guide hole, so that synchronous milling and slag collecting are realized.

[0073] The rectangular pile foundation trenching method of the application places the slag collecting cylinder 3 in the to-be-trenched guide hole first, and then the milling wheel assembly 2 mills the to-be-trenched guide hole, so that a large amount of milled slag stones can fall into the slag collecting cylinder 3, and the slag collecting effect is good.

[0074] Further, the milling wheel assembly 2 comprises two milling wheel mechanisms 21, which are arranged side by side below the mounting frame 1 along the first horizontal direction;

[0075] The milling of the hole wall of the to-be-grooved guide hole by the milling wheel assembly 2 comprises:

[0076] In step S201, the two opposite hole walls of the to-be-grooved guide hole are respectively milled by the two milling wheel mechanisms 21 to form a rectangular groove.

[0077] After the rectangular groove is milled by step S201, specifically, the two milling wheel mechanisms 21 are synchronously fed downward for milling, and finally the rectangular groove is milled. In step S201, since the two milling wheel mechanisms 21 are arranged side by side along the first horizontal direction, in the process of milling and excavating, the two milling wheel mechanisms 21 will mill the A area and the A1 area, or the C area and the C1 area, or the D area and the D1 area, respectively, and the reaction force of the hole wall rock on the milling wheel mechanisms 21 is counteracted, and the milling and excavating efficiency is high.

[0078] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "arranged", "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0079] In the description of the present application, the description of the terms "embodiment", "exemplarily", "some embodiments" means that the specific features, structures, materials or characteristics described in combination with the embodiment or implementation are contained in at least one embodiment or implementation of the present application. In the present application, the exemplary description of the above terms does not necessarily mean the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0080] The terms "first", "second", etc. are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0081] Although the present application is disclosed as above, the protection scope of the present application is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, and these changes and modifications will fall within the protection scope of the present application.

Claims

1. A method of trenching for a rectangular pile foundation, characterized by, The excavating device comprises a rectangular pile foundation trenching device, the rectangular pile foundation trenching device comprises a mounting frame (1), a milling wheel assembly (2) and a slag collecting cylinder (3), the mounting frame (1) is used for connecting an output end (9) of the excavating device, the milling wheel assembly (2) is arranged below the mounting frame (1), the slag collecting cylinder (3) is arranged below the milling wheel assembly (2), and an upwardly open slag collecting cavity is arranged on the slag collecting cylinder (3); The rectangular pile foundation trenching method comprises the following steps: The excavating device is moved to the vicinity of a to-be-trenched guide hole, and the slag collecting cylinder (3) is placed in the to-be-trenched guide hole through the output end (9) of the excavating device; The milling wheel assembly (2) mills the hole wall of the to-be-trenched guide hole, so that the milled slag enters the slag collecting cylinder (3).

2. A method of trenching for a rectangular pile foundation according to claim 1, wherein The bottom of the slag collecting cavity is provided with an open door body (31).

3. A method of trenching for a rectangular pile foundation according to claim 1, wherein The side wall surface of the slag collecting cylinder (3) is used to abut against the inner wall surface of the to-be-trenched guide hole.

4. The method of trenching for a rectangular pile foundation according to claim 1, wherein The milling wheel assembly (2) comprises two milling wheel mechanisms (21), and the two milling wheel mechanisms (21) are arranged side by side below the mounting frame (1) along a first horizontal direction.

5. A method of trenching for a rectangular pile foundation according to claim 4, wherein The milling wheel assembly (2) further comprises two yaw mechanisms (22), the two yaw mechanisms (22) are arranged on the mounting frame (1) and are connected to the two milling wheel mechanisms (21) respectively, and the pose of each yaw mechanism (22) can be adjusted to adjust the milling area of the corresponding milling wheel mechanism (21) in the horizontal plane.

6. A method of trenching for a rectangular pile foundation according to claim 5, wherein The yaw mechanism (22) comprises a connecting plate assembly (223) and two yaw oil cylinders (224), the connecting plate assembly (223) has a first end and a second end arranged oppositely in the first horizontal direction, the first end of the connecting plate assembly (223) is hinged to the mounting frame (1), the connecting plate assembly (223) is connected to the corresponding milling wheel mechanism (21), the upper ends of the two yaw oil cylinders (224) are hinged to the mounting frame (1), and the lower ends are hinged to the two ends of the connecting plate assembly (223) in a second horizontal direction, and the second horizontal direction is arranged perpendicularly to the first horizontal direction.

7. The method of trenching for a rectangular pile foundation according to claim 1, wherein The rectangular pile foundation trenching device further comprises a plurality of correction mechanisms (5), the plurality of correction mechanisms (5) are arranged on the side wall of the mounting frame (1) in a spaced manner along the circumference of the mounting frame (1), each correction mechanism (5) has a movable part (521) which is movably arranged in a direction close to and away from the side wall of the mounting frame (1), and the movable part (521) is used for abutting against the excavated inner wall of the rectangular slot; and / or the rectangular pile foundation trenching device further comprises a plurality of wear-resistant plates (6), and the plurality of wear-resistant plates (6) are arranged on the side wall of the mounting frame (1) in a spaced manner along the circumference of the mounting frame (1).

8. The method of trenching for a rectangular pile foundation according to claim 1, wherein The milling wheel assembly (2) comprises two milling wheel mechanisms (21), and the two milling wheel mechanisms (21) are arranged side by side below the mounting frame (1) along a first horizontal direction; The milling of the hole wall of the to-be-grooved guide hole by the milling wheel assembly (2) comprises: The two opposite hole walls of the to-be-grooved guide hole are respectively milled by the two milling wheel mechanisms (21), and a rectangular groove is formed.

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