Two-wheel type electric T-shaped square pile drill bit

Abstract

The utility model belongs to the technical field of rotary excavating equipment for foundation pits, and particularly relates to a two-wheel type electric T-shaped square pile drill bit. According to the specific technical scheme, the device comprises a box body, rotatable excavating parts are coaxially arranged on the two sides of the box body, an expanding excavating part matched with a T-shaped square pile hole excavating protruding part is arranged on the periphery of an excavating wheel body of one excavating part, and the expanding excavating part and the excavating parts rotate synchronously; the expanding excavating part comprises a supporting and fixing part connected with the excavating part, and an expanding excavating element is arranged on the side, away from the excavating part, of the supporting and fixing part.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit rotary excavation equipment, and specifically relates to a two-wheel electric T-shaped square pile drill bit. Background Art

[0002] In square pile construction, a round drill is usually used to pre-drill holes. The round drill is used to drill once or multiple times according to the size of the square pile required for the operation, and the square pile is processed into a shape similar to a plum blossom pile. However, if you want to process it into a standard rectangular square pile, there will be trimming parts at the four corners of the pre-drilled hole that cannot be processed by the round drill. A special square pile drill is needed to trim it.

[0003] There are various sizes of square piles to be processed, and different sizes of square piles can be processed by replacing excavation parts of different sizes. Due to the needs of engineering projects, it is sometimes necessary to excavate T-shaped square piles. The current practice is to first use a round drill bit and a special square pile drill bit to drill a standard square pile hole. After the square pile is drilled, a special drill bit is used to excavate the protrusion of the T-shaped square pile. First, one protrusion of the T-shaped square pile is drilled, and then the other protrusion of the T-shaped square pile is drilled. This will extend the construction period, increase the excavation time cost and labor cost, and the T-shaped square pile cannot be drilled at one time.

[0004] Therefore, if a drill bit capable of drilling T-shaped square piles can be provided, it will have huge industrial application prospects. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a two-wheeled electric T-shaped square pile drill.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a two-wheeled electric T-type square pile drill, including a box body, rotatable excavation components are coaxially arranged on both sides of the box body, and an extended excavation component adapted to the protruding portion of the excavation T-type square pile hole is arranged on the periphery of the excavation wheel body of one of the excavation components, and the extended excavation component rotates synchronously with the excavation component; the extended excavation component includes a supporting and fixing portion connected to the excavation component, and an extended excavation element is arranged on the side of the supporting and fixing portion away from the excavation component.

[0007] Preferably, a plurality of extended excavating elements are arranged on the periphery of the excavating wheel body, and the distances between the excavating points of the plurality of excavating elements and the axis of the excavating wheel body are the same.

[0008] Preferably, an extended excavation component is arranged on the periphery of the excavation component; the supporting and fixing portion includes a connecting portion and an arc-shaped supporting portion, one end of the connecting portion is connected to the excavation wheel body of the excavation component, and the other end of the connecting portion is connected to the arc-shaped supporting portion; a plurality of the extended excavation elements are arranged on the side of the arc-shaped supporting portion away from the connecting portion; the side of the arc-shaped supporting portion away from the excavation wheel body is an arc-shaped surface, and the circle corresponding to the arc-shaped surface is coaxial with the excavation component.

[0009] Preferably, at least two extended excavation components are arranged in a circular array around the excavation component, and the supporting and fixing portion includes a connecting portion and an arc-shaped supporting portion, one end of the connecting portion is connected to the excavation wheel body of the excavation component, and the other end of the connecting portion is connected to the arc-shaped supporting portion; at least one extended excavation element is provided on the side of the arc-shaped supporting portion away from the connecting portion; the side of the arc-shaped supporting portion away from the excavation wheel body is an arc-shaped surface, and the circle corresponding to the arc-shaped surface is coaxial with the excavation component.

[0010] Preferably, a cylindrical body with openings at both ends and a hollow interior is provided at the lower end of the box body, and conversion mounting plates are positioned at both ends of the cylindrical body. One side of the conversion mounting plate is connected to the motor through the motor mounting plate, and the other side is connected to the reducer; the reducer is connected to the excavation component; the two motors are both located inside the cylindrical body, and the motors drive the excavation component to rotate.

[0011] Preferably, the conversion mounting plate and the motor mounting plate are both annular plates in shape; a plurality of first positioning mounting holes are arranged in a circular array at both ends of the cylinder; a second positioning mounting hole corresponding to the first positioning mounting hole is provided on the conversion mounting plate, and a plurality of third positioning mounting holes are arranged in a circular array on the conversion mounting plate, and the circle surrounded by the plurality of third positioning mounting holes is concentric with the circle surrounded by the plurality of second positioning mounting holes; the motor mounting plate and the reducer are positioned and mounted on the conversion mounting plate through the third positioning mounting holes.

[0012] Preferably, the box body includes a top plate and two vertical plates arranged at the lower end of the top plate, the top plate is provided with a surrounding plate along its circumference, and a plurality of the surrounding plates and the top plate are combined to form an upper frame with an opening facing upward; a raised frame-type box body is also provided on the side of the upper frame, and the frame-type box body is used to make way for the extended excavation component when excavating;

[0013] The two vertical plates are spaced apart from each other, and a "U"-shaped sealing plate is arranged between the two vertical plates, so that the two vertical plates, the "U"-shaped sealing plate and the lower surface of the top plate are combined to form a closed lower frame; the cylindrical body is arranged through the two vertical plates.

[0014] Preferably, the frame-type box includes a yielding top plate and a surrounding plate arranged circumferentially along the yielding top plate; a floating anti-deflection plate is detachably arranged on the surrounding plate perpendicular to the axial direction of the excavation component, and the distance between the back-to-back end faces of the two floating anti-deflection plates is smaller than the distance between the back end faces of the two excavation components.

[0015] Preferably, the enclosure on which the floating anti-deflection plate is installed is provided with an anti-deflection plate installation hole, and the floating anti-deflection plate is provided with a first installation hole adapted to the anti-deflection plate installation hole;

[0016] And / or, a positioning plate is detachably provided on the enclosure parallel to the axial direction of the excavating component, and a positioning plate mounting hole for positioning and mounting the positioning plate is provided on the enclosure on which the positioning plate is mounted.

[0017] Preferably, an anti-deflection guide plate is provided at the lower end of the top plate, and a guiding slope is provided at the upper front end of the anti-deflection guide plate. When the square drill bit moves downward, the anti-deflection guide plate is used for anti-deflection guidance.

[0018] Preferably, a slag leakage hole is provided on the top plate;

[0019] And / or, a detection wire hole is provided on the top plate, and the detection wire hole is arranged near the outlet of the square drill wire; when working, a steel wire rope is connected to the detection wire hole, and the retraction and release margin of the wire is judged by the tightness of the steel wire rope.

[0020] This application has the following beneficial effects:

[0021] The rotatable excavation parts are coaxially arranged on both sides of the box body, and an extended excavation part is arranged on the periphery of the excavation wheel body of one of the excavation parts, and the extended excavation part rotates synchronously with the excavation part. When working, the two excavation parts excavate the standard square pile hole area, and the extended excavation part excavates the protruding part area of ​​the T-shaped square pile hole. The rotation of the excavation parts drives the extended excavation parts to rotate at the same time, and the T-shaped square pile hole can be excavated at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 An exploded view of a T-shaped square pile drill bit of the present invention (without showing the extended excavation component);

[0023] Figure 2 It is a front view of the T-shaped square pile drill bit of the present invention and a stereoscopic view of the floating anti-deflection plate (the extended excavation component is not shown);

[0024] Figure 3 It is a schematic diagram of the installation of the excavation component and the electric component of the present invention (the extended excavation component is not shown);

[0025] Figure 4 It is a three-dimensional diagram of the box body of the present invention;

[0026] Figure 5 It is a cross-sectional schematic diagram of the excavation component of the present invention;

[0027] Figure 6 A three-dimensional diagram of a T-shaped square pile drill bit of the present invention;

[0028] Figure 7 It is a top view of the T-shaped square pile drill bit of the present invention when it is working.

[0029] In the figure: cylinder 1, motor 2, conversion mounting plate 4, motor mounting plate 5, excavation wheel body 7, excavation element 8, sealing plate 9, vertical plate 10, reducer 11, vertical plate 12, anti-deflection guide plate 13, "U"-shaped sealing plate 14, top plate 15, connecting square head 16, reinforcing plate 17, enclosure 18, positioning plate mounting hole 19, anti-deflection plate mounting hole 20, frame box 21, floating anti-deflection plate 22, first mounting hole 23, extended excavation element 24, arc-shaped support part 25, connecting part 26, slag leakage hole 27, detection line hole 28. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that Figure 1-7 The positioning plate is not shown; Figure 1-3 The extended excavation components are not shown.

[0032] like Figure 1-7As shown, the utility model discloses a two-wheeled electric T-type square pile drill, comprising a box body, rotatable excavation parts are coaxially arranged on both sides of the box body, wherein an extended excavation part adapted to the protrusion of the excavation T-type square pile hole is arranged on the periphery of the excavation wheel body 7 of one of the excavation parts, and the extended excavation part rotates synchronously with the excavation part; the extended excavation part comprises a supporting and fixing part connected to the excavation part, and an extended excavation element 24 is arranged on the side of the supporting and fixing part away from the excavation part. When working, the two excavation parts excavate the standard square pile hole area, and the extended excavation part excavates the protrusion area of ​​the T-type square pile hole. The rotation of the excavation part drives the extended excavation part to rotate, so as to realize the excavation of the T-type square pile hole.

[0033] Furthermore, a plurality of extended excavating elements 24 are disposed on the periphery of the excavating wheel body 7 , and the distances between the excavating points of the plurality of excavating elements 8 and the axis of the excavating wheel body 7 are the same.

[0034] An implementation manner of an extended excavation component on an excavation wheel body 7, wherein an extended excavation component is arranged on the periphery of the excavation component; the supporting and fixing portion includes a connecting portion 26 and an arc-shaped supporting portion 25, one end of the connecting portion 26 is connected to the excavation wheel body 7 of the excavation component, and the other end of the connecting portion 26 is connected to the arc-shaped supporting portion 25; a plurality of the extended excavation elements 24 are arranged on the side of the arc-shaped supporting portion 25 away from the connecting portion 26; the side of the arc-shaped supporting portion 25 away from the excavation wheel body 7 is an arc-shaped surface, and the circle corresponding to the arc-shaped surface is coaxial with the excavation component.

[0035] Another embodiment of the extended excavation component on the excavation wheel body 7, at least two of the extended excavation components are arranged in a circular array around the excavation component, the supporting and fixing portion includes a connecting portion 26 and an arc-shaped supporting portion 25, one end of the connecting portion 26 is connected to the excavation wheel body 7 of the excavation component, and the other end of the connecting portion 26 is connected to the arc-shaped supporting portion 25; at least one of the extended excavation elements 24 is provided on the side of the arc-shaped supporting portion 25 away from the connecting portion 26; the side of the arc-shaped supporting portion 25 away from the excavation wheel body 7 is an arc-shaped surface, and the circle corresponding to the arc-shaped surface is coaxial with the excavation component.

[0036] Specifically, the connecting portion 26 may be a connecting plate, a connecting rod or other embodiments.

[0037] Specifically, the arrangement of the plurality of extended excavation elements 24 on the arc-shaped support portion 25 may be regular or irregular. The regular arrangement may be uniform arrangement along the same generatrix of the arc-shaped support portion 25, staggered arrangement along the same generatrix of the arc-shaped support portion 25, or inclined arrangement along the generatrix direction of the arc-shaped support portion 25, etc.

[0038] Furthermore, a cylindrical body 1 with openings at both ends and a hollow interior is provided at the lower end of the box body main body, and conversion mounting plates 4 are positioned at both ends of the cylindrical body 1. One side of the conversion mounting plate 4 is connected to the motor 2 through the motor mounting plate 5, and the other side is connected to the reducer 11; the reducer 11 is connected to the excavation component; the two motors 2 are both located inside the cylindrical body 1, and the motor 2 drives the excavation component to rotate. That is, the motor 2 is installed on the motor mounting plate 5, the motor mounting plate 5 is installed on the conversion mounting plate 4, the reducer 11 is installed on the conversion mounting plate 4, and the conversion mounting plate 4 is installed at the conversion mounting plate 4 installation station on the box body, and the excavation component is installed at the rotation positioning end of the reducer 11, and each component is positioned, installed and connected to each other. The inside of the cylindrical body 1 is the installation space for the motor 2.

[0039] The extended excavation component and the excavation component are powered by a motor 2, which can realize the electric drive of the extended excavation component and the excavation component to rotate, so that the T-type square pile drill has lower energy consumption and is more environmentally friendly. The wire is placed inside the hydraulic oil pipe, and a layer of hydraulic oil pipe is wrapped around the outside of the wire to prevent the cable from being damaged by the outside during the construction process, thereby protecting the cable.

[0040] At the same time, due to the use of electric drive, parameter sensors and cameras are set in the main body of the box. The parameter sensors monitor the operating status parameters in the main body of the box, which improves the intelligence level and monitoring and maintenance capabilities of the equipment, making the T-type square pile drill more intelligent and more convenient to operate and maintain. Parameter sensors include temperature sensors, humidity sensors, etc. These parameter sensors are all connected to the control host outside the square drill bit, and the operating status parameters inside the main body of the box are transmitted to the control host in real time and displayed through the display device, so that the operator can monitor the operating status inside the box in real time, which is convenient for management.

[0041] Further, the conversion mounting plate 4 and the motor mounting plate 5 are both plate-type structures, specifically annular plates; a plurality of first positioning mounting holes are arranged in a circular array at both ends of the cylinder 1; a second positioning mounting hole corresponding to the first positioning mounting hole is provided on the conversion mounting plate 4, and a plurality of third positioning mounting holes are arranged in a circular array on the conversion mounting plate 4, and the circle surrounded by the plurality of third positioning mounting holes is arranged concentrically with the circle surrounded by the plurality of second positioning mounting holes. The motor mounting plate 5 and the reducer 11 are positioned and installed on the conversion mounting plate 4 through the third positioning mounting holes. The output shaft of the electric component passes through the middle circular hole of the conversion mounting plate 4 and the motor mounting plate 5 and is connected to the reducer 11. That is, the motor 2 is installed on the motor mounting plate 5, the motor mounting plate 5 is installed on the conversion mounting plate 4, the reducer 11 is installed on the conversion mounting plate 4, and the conversion mounting plate 4 is installed at the conversion mounting plate 4 installation station on the box body, and the excavation component is installed at the rotation positioning end of the reducer 11, and the various components are positioned, installed and connected to each other. The interior of the cylinder 1 is the installation space of the motor 2.

[0042] Furthermore, the box body includes a top plate 15 and two vertical plates 12 arranged at the lower end of the top plate 15. The top plate 15 is provided with a surrounding plate 18 along its circumference. A plurality of the surrounding plates 18 and the top plate 15 together form an upper frame with an opening facing upward. A raised frame-type box 21 is also provided on the side of the upper frame. The frame-type box 21 is used to make way for the extended excavation component during excavation. A connecting square head 16 is welded to the upper end surface of the top plate 15. The connecting square head 16 is connected to the operating square head of the rotary drilling rig, so as to realize the operation installation and fixation of the entire T-type square pile drill bit. Specifically, the frame-type box 21 includes a top plate 15 that makes way and a surrounding plate 18 arranged along the circumference of the top plate 15 that makes way.

[0043] Furthermore, the two vertical plates 12 are arranged apart from each other, and a "U"-shaped sealing plate 14 is arranged between the two vertical plates 12, so that the two vertical plates 12, the "U"-shaped sealing plate 14 and the lower surface of the top plate 15 are combined to form a closed lower frame; the cylindrical body 1 is arranged through the two vertical plates 12. The hollow part between the two vertical plates 12 is used to pass the wires.

[0044] In order to improve the mechanical strength of the box body, a reinforcing plate 17 is provided on the upper surface of the top plate 15, between the top plate 15 and the square head, and also on the lower surface of the top plate 15. By providing the reinforcing plate 17, the mechanical strength of the entire upper frame box is improved.

[0045] Furthermore, in order to adapt to the anti-bias positioning of different square pile sizes, a floating anti-bias plate 22 is detachably provided on the enclosure 18 perpendicular to the axis direction of the excavation component, and the distance between the back-to-back end faces of the two floating anti-bias plates 22 is smaller than the distance between the back-to-back end faces of the two excavation components. Figure 2As shown, the long excavation side B between the two excavation components is equal to the sum of the spacing A and the dimension drop C, and the spacing A is the sum of the lengths between the box body and the two floating anti-deflection plates 22.

[0046] Specifically, the floating anti-deflection plate 22 is a frame structure inlaid with steel plates. The enclosure 18 on which the floating anti-deflection plate 22 is installed is provided with an anti-deflection plate installation hole 20, and the floating anti-deflection plate 22 is provided with a first installation hole 23 adapted to the anti-deflection plate installation hole 20. By providing the anti-deflection plate installation hole 20 and the first installation hole 23, a detachable connection between the floating anti-deflection plate 22 and the enclosure 18 is achieved. The floating anti-deflection plate 22 is a correction positioning original component added when the excavation length of the square pile drill becomes longer, and the floating anti-deflection plate 22 has a positioning and anti-deflection function. For different square pile sizes, it is only necessary to replace the excavation components of different sizes, and correspondingly replace the floating anti-deflection plate 22 to achieve the anti-deflection positioning function during the excavation process.

[0047] Furthermore, in order to adapt to the anti-bias positioning of different square pile sizes, a positioning plate can be detachably provided on the enclosure 18 parallel to the axial direction of the excavation component, and a positioning plate mounting hole 19 for positioning and mounting the positioning plate is provided on the enclosure 18 on which the positioning plate is mounted. When the width direction of the square pile hole changes, a positioning plate can be added accordingly to realize the anti-bias positioning function during the excavation process.

[0048] Furthermore, the top plate 15 is provided with an anti-deflection guide plate 13 at the lower end, and the front end of the anti-deflection guide plate 13 is provided with a guiding slope, and when the square drill bit moves downward, the anti-deflection guide plate 13 is used for anti-deflection guidance. Specifically, the anti-deflection guide plate 13 is installed on both sides of the vertical plate 12 in the width direction.

[0049] Furthermore, the top plate 15 is provided with a slag discharge hole 27 to facilitate cleaning of soil and rocks accumulated in the upper frame box.

[0050] Furthermore, a detection wire hole 28 is provided on the top plate 15, and the detection wire hole 28 is arranged near the outlet of the square drill wire. When working, the detection wire hole 28 is connected with a wire rope. When the entire T-shaped square pile drill moves downward, the retraction and release margin of the wire is judged by the tightness of the wire rope to prevent the wire from being pulled strongly, thereby protecting the wire.

[0051] Furthermore, the excavation component includes an excavation wheel body 7 and an excavation element 8 arranged on the excavation wheel body 7, a vertical plate 10 connected to a speed reducer 11 is arranged inside the excavation wheel body 7, and a reinforcement ring is arranged at one end of the excavation wheel body 7 away from the box body. A reinforcement plate 17 is arranged between the vertical plate 10 and the inner side wall of the excavation wheel body 7 to strengthen the strength of the excavation wheel body 7. A sealing plate 9 is arranged on the side of the reinforcement ring away from the vertical plate 10, and the sealing plate 9 is used to prevent external soil and rocks from entering the interior of the excavation wheel body 7. The main function of the sealing plate 9 is to form a closed space inside the excavation wheel body to prevent soil and rocks from entering the interior of the excavation wheel body and damaging the speed reducer 11.

[0052] Furthermore, the excavation component includes an excavation wheel body 7 and a plurality of excavation elements 8 arranged on the excavation wheel body 7. The excavation elements 8 on the excavation wheel body 7 can be arranged in a spiral regular arrangement or a spiral irregular arrangement or arranged in a straight line at an angle to the axial direction of the excavation wheel body 7. The excavation element 8 and the extended excavation element 24 can be a finished bullet head, or a hard protrusion, or a self-made part with excavation and cutting functions.

[0053] The working principle of the two-wheel electric T-shaped square drill bit: In order to dig a T-shaped square pile hole, an extended digging component is installed on the periphery of one of the digging components. The extended digging component rotates synchronously with the digging component to realize the function of digging a T-shaped square pile hole, thereby improving the adaptability of the square pile drill bit. The extended digging components of different sizes can be replaced as needed, and the matching floating anti-deflection plate 22 and positioning plate can be replaced at the same time. The floating anti-deflection plate 22 and positioning plate are provided to prevent the T-shaped square pile drill bit from tilting during the drilling process.

[0054] The output end of the motor 2 is connected to the reducer 11, and the rotating output end of the reducer 11 is connected to the excavation component through the vertical plate 10 in the excavation wheel body 7. The excavation component is driven to rotate by the motor 2, and the electric drive method is adopted to make the square pile drill bit have lower energy consumption and be more environmentally friendly. Due to the electric drive method, parameter sensors can be added inside the square pile drill bit to monitor the operating conditions such as temperature and humidity inside the box body in real time, making the square pile drill bit more intelligent and more convenient to operate and maintain.

[0055] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. Two-wheel electric T-type square pile drill, characterized by: The invention comprises a box body, wherein rotatable excavating parts are coaxially arranged on both sides of the box body, wherein an extended excavating part adapted to the protruding part of the excavating T-shaped square pile hole is arranged on the periphery of the excavating wheel body (7) of one of the excavating parts, and the extended excavating part rotates synchronously with the excavating part; the extended excavating part comprises a supporting and fixing part connected to the excavating part, and an extended excavating element (24) is arranged on a side of the supporting and fixing part away from the excavating part.

2. The two-wheeled electric T-type square pile drill according to claim 1, characterized in that: A plurality of extended excavating elements (24) are arranged on the periphery of the excavating wheel body (7), and the distances between the excavating points of the plurality of excavating elements (8) and the axis of the excavating wheel body (7) are the same.

3. The two-wheeled electric T-type square pile drill according to claim 2, characterized in that: An extended excavation component is arranged on the periphery of the excavation component; the supporting and fixing part comprises a connecting part (26) and an arc-shaped supporting part (25); one end of the connecting part (26) is connected to the excavation wheel body (7) of the excavation component, and the other end of the connecting part (26) is connected to the arc-shaped supporting part (25); a plurality of extended excavation elements (24) are arranged on a side of the arc-shaped supporting part (25) away from the connecting part (26); a side of the arc-shaped supporting part (25) away from the excavation wheel body (7) is an arc-shaped surface, and a circle corresponding to the arc-shaped surface is coaxial with the excavation component.

4. The two-wheeled electric T-type square pile drill according to claim 2, characterized in that: At least two of the extended excavation components are arranged in a circular array around the excavation component, and the supporting and fixing portion comprises a connecting portion (26) and an arc-shaped supporting portion (25), one end of the connecting portion (26) is connected to the excavation wheel body (7) of the excavation component, and the other end of the connecting portion (26) is connected to the arc-shaped supporting portion (25); at least one of the extended excavation elements (24) is arranged on a side of the arc-shaped supporting portion (25) away from the connecting portion (26); and a side of the arc-shaped supporting portion (25) away from the excavation wheel body (7) is an arc-shaped surface, and a circle corresponding to the arc-shaped surface is coaxial with the excavation component.

5. The two-wheeled electric T-type square pile drill according to claim 3 or 4, characterized in that: A cylindrical body (1) with openings at both ends and a hollow interior is disposed at the lower end of the box body main body. Conversion mounting plates (4) are positioned at both ends of the cylindrical body (1). One side of the conversion mounting plate (4) is connected to the motor (2) via a motor mounting plate (5), and the other side is connected to a reducer (11); the reducer (11) is connected to the excavating component; the two motors (2) are both located inside the cylindrical body (1), and the motors (2) drive the excavating component to rotate.

6. The two-wheeled electric T-type square pile drill according to claim 5, characterized in that: The conversion mounting plate (4) and the motor mounting plate (5) are both annular plates; a plurality of first positioning mounting holes are arranged in a circular array at both ends of the cylindrical body (1); a second positioning mounting hole corresponding to the first positioning mounting hole is provided on the conversion mounting plate (4); a plurality of third positioning mounting holes are arranged in a circular array on the conversion mounting plate (4); a circle formed by the plurality of third positioning mounting holes is concentric with a circle formed by the plurality of second positioning mounting holes; the motor mounting plate (5) and the reducer (11) are positioned and mounted on the conversion mounting plate (4) through the third positioning mounting holes.

7. The two-wheeled electric T-type square pile drill according to claim 5, characterized in that: The box body comprises a top plate (15) and two vertical plates (12) arranged at the lower end of the top plate (15); a surrounding plate (18) is arranged on the top plate (15) along its circumference; a plurality of the surrounding plates (18) and the top plate (15) are combined to form an upper frame with an opening facing upward; a raised frame-type box body (21) is also arranged on the side of the upper frame, and the frame-type box body (21) is used to make way for the extended excavation component when excavating; The two vertical plates (12) are arranged apart from each other, and a "U"-shaped sealing plate (14) is arranged between the two vertical plates (12), so that the two vertical plates (12), the "U"-shaped sealing plate (14) and the lower surface of the top plate (15) are combined to form a closed lower frame; the cylindrical body (1) is arranged through the two vertical plates (12).

8. The two-wheeled electric T-type square pile drill according to claim 7, characterized in that: The frame-type box (21) comprises a top plate and a surrounding plate arranged along the circumference of the top plate; a floating anti-deflection plate (22) is detachably arranged on the surrounding plate perpendicular to the axial direction of the excavation component, and the distance between the back-to-back end faces of the two floating anti-deflection plates (22) is smaller than the distance between the back end faces of the two excavation components.

9. The two-wheeled electric T-type square pile drill according to claim 8, characterized in that: An anti-deflection plate mounting hole (20) is provided on the enclosure plate on which the floating anti-deflection plate (22) is mounted, and the floating anti-deflection plate (22) is provided with a first mounting hole (23) adapted to the anti-deflection plate mounting hole (20); And / or, a positioning plate is detachably provided on a surrounding plate (18) parallel to the axial direction of the excavating component, and a positioning plate mounting hole (19) for positioning and mounting the positioning plate is provided on the surrounding plate (18) on which the positioning plate is mounted.

10. The two-wheeled electric T-type square pile drill according to claim 7, characterized in that: An anti-deflection guide plate (13) is arranged at the lower end of the top plate (15), and a guiding inclined surface is arranged at the upper front end of the anti-deflection guide plate (13). When the square drill bit moves downward, the anti-deflection guide plate (13) is used for anti-deflection guidance.

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