Pile cutting equipment for constructional engineering

Abstract

The invention discloses constructional engineering pile cutting equipment, and relates to the technical field of building construction, the constructional engineering pile cutting equipment comprises an inner milling mechanism, a crashing mechanism and an outer milling cylinder, and the crashing mechanism and the inner milling mechanism are arranged on the inner side of the outer milling cylinder; the top of the outer milling barrel is rotatably connected with a motor bin, a motor is fixedly connected in the motor bin, an inner barrel cavity is formed in the outer milling barrel, the bottom of the outer milling barrel is of an open barrel-shaped structure, the diameter of an opening of the outer milling barrel is smaller than the maximum diameter of the outer milling barrel, and the outer milling barrel is used for reserving a space for discharging concrete powder; the outer milling cylinder further comprises outer grinding teeth, a connecting cylinder and a rotating shaft; the bottom of the outer milling cylinder is fixedly connected with a plurality of groups of outer grinding teeth around the axis; a plurality of waste outlets are formed in the section of the lower end of the outer milling cylinder; one end of the rotating shaft is fixedly connected to the output end of the motor, and the other end penetrates through the outer milling cylinder and is connected with an inner milling mechanism; the connecting cylinder is coaxially and fixedly connected to the top of the inner cylinder cavity; and the lower end of the connecting cylinder is connected with an impact mechanism, and the impact mechanism is used for impacting and crushing the milled concrete.

Description

Technical Field

[0001] The invention relates to the technical field of wind farm construction, and in particular to a pile cutting equipment for construction engineering. Background Art

[0002] In wind farm construction projects that require large-scale pile foundation construction, pile foundations are installed using equipment such as pile drivers to install the pile foundations to the predetermined position and fix them. The installation process ensures the verticality and stability of the pile foundations. Pile cutters are then required to cut off the pile heads. The efficiency of the cut-off will also directly affect the subsequent construction efficiency. At this time, the rapid pile cutting capability of the pile cutter is particularly important. Pile cutters, also known as pile breakers, are engineering machinery that directly drives the drill rod through a power source and squeezes the pile body to achieve pile head cut-off. Compared with traditional manual pile breaking methods or equipment such as pneumatic picks and hydraulic picks, this working method greatly improves construction efficiency and shortens construction period.

[0003] Publication No. CN118128043B discloses a pile cutter for construction engineering, including a peripheral milling cylinder, an inner milling mechanism and a circulating crushing mechanism, wherein the inner milling mechanism is arranged inside the peripheral milling cylinder, the circulating crushing mechanism is rotatably arranged on the inner milling mechanism, and a motor compartment is rotatably arranged on the top of the peripheral milling cylinder, and the motor compartment is provided with a power motor. The present invention belongs to the field of construction technology, and specifically refers to a pile cutter for construction engineering; the present invention can use less force and smaller amplitude to prop up concrete outward by pre-milling the ground piles, greatly reducing the damage to the steel bars, and facilitating the transportation and recycling of the cut steel bars. At the same time, compared with the traditional pile cutter, the method of milling and cutting piles will not cause fragments to splash, and more effectively protect the staff and equipment.

[0004] During the actual use of the above-mentioned equipment, since there is a blind spot inside the outer milling cylinder and the specific position of the steel bars cannot be seen, when the circulating crushing mechanism crushes the concrete, it will hit the steel bars, causing damage to the steel bars. The circulating crushing mechanism may also be stuck inside the steel bars when it is expanded and recovered, causing damage to the equipment and reducing work efficiency. Summary of the invention

[0005] The present application provides a construction engineering pile cutting equipment to solve the technical problem in the prior art that, due to the blind spot in the outer milling cylinder and the inability to see the specific position of the steel bars, when the circulating crushing mechanism crushes the concrete, it will hit the steel bars, causing damage to the steel bars, and it may also cause the circulating crushing mechanism to be stuck inside the steel bars when it is expanded and recovered, causing damage to the equipment and reducing the work efficiency. The position of the present application is adjusted by adjusting the magnetic attraction force of the electromagnet to magnetically attract the steel bars, thereby ensuring that the crushing column will not hit the steel bars when it hits, and then the telescopic crushing column is used to perform a range impact on the concrete around it, effectively solving the problem of the crushing mechanism hitting the steel bars in the blind spot, causing damage to the steel bars and damage to the equipment itself, while also extending the service life of the equipment and improving the work efficiency.

[0006] The present application provides a construction engineering pile cutting equipment, comprising an inner milling mechanism, a crushing mechanism and an outer milling cylinder, wherein the impact mechanism and the inner milling mechanism are arranged on the inner side of the outer milling cylinder; a motor compartment is rotatably connected to the top of the outer milling cylinder, and a motor is fixedly connected to the motor compartment, characterized in that: The outer milling cylinder has an inner cylinder cavity, and the bottom of the outer milling cylinder is an open cylinder structure, the opening diameter of which is smaller than the maximum diameter of the outer milling cylinder, and the function is to leave space for concrete powder to be discharged; The outer milling cylinder also includes an outer grinding tooth, a connecting cylinder and a rotating shaft; The bottom of the outer milling cylinder is fixedly connected with a plurality of groups of outer grinding teeth around the axis; The lower end section of the outer milling cylinder is provided with a plurality of waste outlets; One end of the rotating shaft is fixedly connected to the output end of the motor, and the other end passes through the outer milling cylinder and is connected to the inner milling mechanism; The connecting tube is coaxially fixedly connected to the top of the inner tube cavity; The lower end of the connecting tube is connected with an impact mechanism; The inner milling mechanism also includes a rotating column, an inner milling plate, a spiral blade, an inner grinding tooth and a positioning drill bit; One end of the rotating column is fixedly connected to the end surface of the other end of the rotating shaft, and the other end of the rotating column is fixedly connected to an inner milling plate; the outer section of the rotating column is fixedly connected to a spiral blade; The inner milling plate is a fan-shaped structure, and the diameter of the inner milling plate is smaller than the diameter of the bottom opening of the outer milling cylinder; The fan-shaped bottom surface of the inner milling plate is fixedly connected to a plurality of groups of inner grinding teeth; A positioning drill bit is coaxially and fixedly connected to the bottom surface of the inner milling plate; The impact mechanism also includes a supporting plate and a connecting plate; The support plate is fixedly connected to the lower end section of the rotating shaft; The support plate includes an electromagnet, which is fixedly connected to the outer circular cross-section of the support plate around an axis, and there are multiple electromagnets; The connecting plate is coaxially fixedly connected to the lower bottom surface of the supporting plate; The lower bottom surface of the support plate is coaxially fixedly connected with the connecting plate; A plurality of slide grooves are provided around the axis in the connecting plate, and the connecting plate also includes a hydraulic cylinder and a crushing column; One end of the slideway is fixedly connected to a hydraulic cylinder; The position of the chute is between the two electromagnets, and the number of the chute is the same as the number of the electromagnets; The pounding column is fixedly connected to the output end of the hydraulic cylinder; The crushing columns are slidably connected in the chute via a hydraulic cylinder, and the number of the crushing columns is the same as the number of the chute; Preferably, a cross crushing column is included, wherein the cross crushing column is formed by two crushing columns being cross-crossed and fixedly connected; the cross crushing column also includes an impact needle and an impact bent plate; the output end of the cross crushing column is fixedly connected to the impact needle, and the end side of the cross crushing column is fixedly connected to the impact bent plate; Preferably, the cross crushing column further comprises a connector, a support member 1, a support member 2, an expansion bag 1, a suction machine 1, a suction machine 2 and an expansion bag 2; a connector is fixedly connected to a section of the cross crushing column away from the hydraulic cylinder, the connector is a rectangular structure, and four rectangular cross sections are provided with through grooves; an expansion bag 1 is fixedly connected to the middle of the connector; suction machines 1 and 2 are fixedly connected to the interior of the cross crushing column, and are connected to the expansion bag 1 through a hose; an expansion bag 2 is sleeved on the middle section of the expansion bag 1, and is connected to the suction machine 2 through a hose passing through the interior of the expansion bag 1; Preferably, the cylindrical I-shaped structure of the expansion bladder 1 is composed of three connected bladders inside, and the diameter of the expansion bladder 1 is larger at both sides and smaller in the middle; the shape of the expansion bladder 2 is a hollow cylindrical structure, and the diameter is equal to the diameter of the upper and lower circles of the expansion bladder 1; the expansion bladder 1 and the expansion bladder 2 are both made of high-strength rubber materials, and the thickness of both is 3 cm; Preferably, the upper and lower ends of the connector are symmetrically provided with two groups of fixing holes, and each group has two fixing holes; the two side ends of the connector are symmetrically provided with a group of fixing holes; the opening of the fixing hole is smaller than the diameter of the bottom; the connector further comprises a support block; the lower ends of the support member 1 and the support member 2 are fixedly connected with the support block; Preferably, the connector also includes a limit rod; the lower end of the support member 2 is symmetrically fixedly connected to two limit rods; the lower end of the support member 1 is symmetrically fixedly connected to four limit rods; the limit rod is slidably connected to the fixing hole, the diameter of the limit rod is the same as the opening diameter of the fixing hole, and a limit block is arranged at the bottom of the limit rod to prevent the limit rod from sliding out of the fixing hole; the limit block also includes a spring; one end of the spring is fixedly connected to the bottom of the limit block, and the other end is fixedly connected to the bottom of the fixing hole, and its function is to return the support members 1 and 2 to their original positions through elastic force; the support blocks of the support members 1 and 2 are slidably connected in the through grooves through the limit rods and the fixing holes; Preferably, a placement cavity is formed at the lower end of the cross crushing column; the cross crushing column further comprises an impact assembly; the impact assembly further comprises a connecting member, an impact bent plate, a rotary motor and an action member; the connecting member is rotatably connected to the side end face of the placement cavity and is close to the first support member; the rotary motor is fixedly connected in the connecting plate and is close to the placement cavity; one end of the action member is rotatably connected to the output end of the rotary motor; Preferably, the action member further comprises an upper action column, a lower action column, an upper built-in cavity and a lower built-in cavity; one end of the upper action column is slidably connected in the upper built-in cavity, and the other end is rotatably connected to the connecting member; one end of the lower action column is slidably connected in the lower built-in cavity, and the other end is fixedly connected to the impact bent plate; the upper built-in cavity and the lower built-in cavity are connected; One or more technical solutions provided in this application have at least the following technical effects or advantages: The magnetic attraction of the electromagnet is adjusted to attract the steel bar, thereby adjusting the position of the present invention to ensure that the crushing column will not hit the steel bar when it hits, and then the telescopic crushing column is used to hit the concrete around it in a range, which effectively solves the problem that the outer milling cylinder is a blind area and the specific position of the steel bar cannot be seen. When the circulating crushing mechanism crushes the concrete, it will hit the steel bar, causing damage to the steel bar, and it may also cause the circulating crushing mechanism to be stuck inside the steel bar when it is stretched out for recovery, causing damage to the equipment and reducing the work efficiency. The technical problem is that the crushing mechanism will not hit the steel bar in the blind area, causing damage to the steel bar and damage to the equipment itself, and the service life of the equipment is extended and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural stereoscopic schematic diagram of a construction engineering pile cutting equipment of the present invention; Figure 2 A half-section structural diagram of a construction engineering pile cutting device according to the present invention; Figure 3This is a schematic diagram of the structure of an inner milling plate of a pile cutting equipment for construction engineering according to the present invention; Figure 4 This is a schematic diagram of the support plate structure of a pile cutting equipment for construction engineering according to the present invention; Figure 5 This is a schematic diagram of the connection plate structure of a construction engineering pile cutting equipment of the present invention; Figure 6 A half-section structural diagram of a construction engineering pile cutting equipment in a milling state according to the present invention; Figure 7 It is a schematic diagram of a partial cross-sectional structure of a construction engineering pile cutting equipment in a milling state according to the present invention; Figure 8 A half-section structural diagram of a second embodiment of a construction engineering pile cutting equipment of the present invention Fig. 9 This is a schematic diagram of the cross crushing column structure of a second embodiment of a construction engineering pile cutting equipment of the present invention; Fig.10 This is a schematic diagram of the connecting member structure of a third embodiment of a construction engineering pile cutting equipment of the present invention; Fig.11 This is a structural schematic diagram of a support member 1 of a third embodiment of a pile cutting equipment for construction engineering of the present invention; Fig.12 It is a partial cross-sectional structural schematic diagram of a support member of a third embodiment of a pile cutting equipment for construction engineering of the present invention; Fig.13 It is a schematic diagram of a partial cross-sectional structure of a connecting piece of a third embodiment of a pile cutting equipment for construction engineering of the present invention; Fig.14 A schematic diagram of the structure of the limiting rod of the third embodiment of the present invention is a construction engineering pile cutting equipment; Fig.15 This is a two-half cross-sectional structural diagram of an expansion bag of a third embodiment of a construction engineering pile cutting equipment of the present invention; Fig.16 This is a structural schematic diagram of a fourth embodiment of a construction engineering pile cutting equipment according to the present invention; Fig.17 It is a schematic diagram of a half-section structure of the working parts of a fourth embodiment of a pile cutting equipment for construction engineering of the present invention; In the figure: 100, outer milling cylinder, 101, motor compartment, 102, motor, 103, inner cylinder cavity, 104, outer grinding gear, 105, waste outlet, 110, steel bar, 120, concrete, 200, rotating shaft, 210, connecting cylinder, 220, rotating column, 230, inner milling plate, 231, inner grinding gear, 232, positioning drill bit, 240, spiral blade, 300, supporting plate, 301, electromagnet, 310, connecting plate, 311, slideway, 312, hydraulic cylinder, 320, crushing column, 330, cross crushing column, 331, Impact needle, 332, impact bending plate, 333, suction machine 1, 334, suction machine 2, 335, placement chamber, 340, connector, 341, fixing hole, 342, through groove, 350, expansion bag 1, 360, expansion bag 2, 370, support member 1, 380, support member 2, 390, support block, 391, spring, 400, connector, 401, limit rod, 410, rotary motor, 420, action member, 421, upper built-in chamber, 422, lower built-in chamber, 430, upper action column, 440, lower action column; DETAILED DESCRIPTION

[0008] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0009] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0010] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0011] Embodiment 1: Figures 1 to 7 As shown, the present application is a construction engineering pile cutting equipment, including an inner milling mechanism, a crushing mechanism and an outer milling cylinder 100, wherein the impact mechanism and the inner milling mechanism are arranged on the inner side of the outer milling cylinder 100; the top of the outer milling cylinder 100 is rotatably connected to a motor 102 bin 101, and the motor 102 bin 101 is fixedly connected to a motor 102, characterized in that: The outer milling cylinder 100 has an inner cylinder cavity 103, and the bottom of the outer milling cylinder 100 is an open cylinder structure, the opening diameter of which is smaller than the maximum diameter of the outer milling cylinder 100, and the function is to leave space for the concrete 120 powder to be discharged; The outer milling cylinder 100 also includes an outer grinding tooth 104, a connecting cylinder 210 and a rotating shaft 200; The bottom of the outer milling barrel 100 is fixedly connected with a plurality of sets of outer grinding teeth 104 around the axis; The lower end section of the outer milling barrel 100 is provided with a plurality of waste outlets 105; One end of the rotating shaft 200 is fixedly connected to the output end of the motor 102, and the other end passes through the outer milling cylinder 100 and is connected to the inner milling mechanism; The connecting tube 210 is coaxially fixedly connected to the top of the inner tube cavity 103; The lower end of the connecting tube 210 is connected with a striking mechanism; The inner milling mechanism further includes a rotating column 220, an inner milling plate 230, a spiral blade 240, an inner grinding tooth 231 and a positioning drill bit 232; One end of the rotating column 220 is fixedly connected to the end surface of the other end of the rotating shaft 200, and the other end of the rotating column 220 is fixedly connected to the inner milling plate 230; the outer cross section of the rotating column 220 is fixedly connected to the spiral blade 240; The inner milling plate 230 is a fan-shaped structure, and the diameter of the inner milling plate 230 is smaller than the diameter of the bottom opening of the outer milling cylinder 100; The fan-shaped bottom surface of the inner milling plate 230 is fixedly connected with a plurality of sets of inner grinding teeth 231; A positioning drill bit 232 is coaxially fixedly connected to the bottom surface of the inner milling plate 230; The impact mechanism also includes a support plate 300 and a connecting plate 310; The support plate 300 is fixedly connected to the lower end section of the rotating shaft 200; The support plate 300 includes an electromagnet 301, which is fixedly connected to the outer circular cross-section of the support plate 300 around an axis, and there are multiple electromagnets 301; The connecting plate 310 is coaxially fixedly connected to the lower bottom surface of the supporting plate 300; The connection plate 310 has a plurality of slide grooves 311 formed around the axis. The connection plate 310 also includes a hydraulic cylinder 312 and a crushing column 320. One end of the slide slot 311 is fixedly connected to a hydraulic cylinder 312; The position of the slide slot 311 is between the two electromagnets 301, and the number of the slide slots 311 is the same as the number of the electromagnets 301; The pounding column 320 is fixedly connected to the output end of the hydraulic cylinder 312; The crushing columns 320 are slidably connected in the chute 311 via a hydraulic cylinder 312, and the number of the crushing columns 320 is the same as the number of the chute 311; Specific implementation: First, the present invention is lifted from the top of the motor compartment 101 by a crane to make the present invention vertical, then the positioning drill bit 232 is aligned with the center of the ground pile to be operated, the motor 102 is started to rotate, the positioning drill bit 232 drills downward and positions, and the crane is controlled to move the present invention downward. When the inner milling plate 230 contacts the top surface of the ground pile, the ground pile is milled; the inner milling mechanism performs milling operation on the concrete 120 on the inner side of the steel bar 110 group, and the outer milling cylinder 100 performs milling operation on the concrete 120 on the outer side of the steel bar 110 group in the ground pile, and the ground pile is milled into a concrete 120 cylinder with a thinner cylinder wall. As the present invention moves downward, the milled concrete 120 powder is transported upward by the spiral blade 240. Due to the outer milling cylinder 1 The opening diameter of the outer milling cylinder 100 is smaller than the maximum diameter of the outer milling cylinder 100, so there is space for the concrete 120 powder to be discharged, and the milled concrete 120 powder is discharged to the waste outlet 105 through the space; as the present invention moves downward, the impact mechanism begins to contact the thin wall of the milled concrete 120, and the steel bar 110 is magnetically attracted by adjusting the magnetic attraction of the electromagnet 301, so that the present invention adjusts the corresponding position, and at the same time, the crushing column 320 can avoid directly hitting the steel bar 110. Under the reciprocating motion of the hydraulic cylinder 312, the crushing column 320 reciprocates to hit the thin wall of the concrete 120, and the crushed concrete 120 pieces are discharged from the waste outlet 105; after the operation is completed, the crane is controlled to lift the present invention and process the remaining concrete 120; Beneficial effect: by adjusting the magnetic attraction force of the electromagnet 301, the steel bar 110 is magnetically attracted, so as to adjust the position of the present invention, ensure that the crushing column 320 will not hit the steel bar 110 when it hits, and then the telescopic crushing column 320 is used to perform a range impact on the concrete 120 around it, which effectively solves the problem that the outer milling cylinder is a blind area and the specific position of the steel bar 110 cannot be seen. When the circulating crushing mechanism crushes the concrete 120, it will hit the steel bar 110, causing damage to the steel bar 110, and it may also cause the circulating crushing mechanism to be stuck inside the steel bar 110 when it is stretched out for recovery, resulting in damage to the equipment and reducing the work efficiency. The technical problem is achieved, thereby achieving the technical effect that the crushing mechanism will not hit the steel bar 110 in the blind area, causing damage to the steel bar 110 and damage to the equipment itself, and also extending the service life of the equipment and improving the work efficiency; Embodiment 2: Since the crushing column is an arc-shaped structure, its impact effect is poor, so the crushing column is improved; like Figures 8 to 9As shown, a cross crushing column 330 is included, and the cross crushing column 330 is formed by two crushing columns 320 being cross-crossed and fixedly connected; The cross crushing column 330 also includes an impact needle 331 and an impact bent plate 332; The output end of the cross crushing column 330 is fixedly connected with a striking needle 331, and the side edges of the end of the cross crushing column 330 are fixedly connected with striking bent plates 332; During the collision, the impact needle 331 firstly focuses the force point to impact the concrete 120 to crack it, and then the concrete 120 is further cracked in all directions by impacting the curved plate 332, which greatly improves the working efficiency of the collision and effectively solves the problem that the impact effect of the crushing column 320 is poor due to its arc structure; Embodiment 3: When the cross crushing column 330 hits the concrete 120 for multiple times, since the cross crushing column 330 is of a fixed size, it is difficult to further expand the crack after entering the concrete 120, so the cross crushing column 330 is further improved; like Figures 10 to 15 As shown, the cross crushing column 330 also includes a connecting body 340, a supporting member 1 370, a supporting member 2 380, an expansion bag 1 350, a suction conveyor 1 333, a suction conveyor 2 334 and an expansion bag 2 360; A connector 340 is fixedly connected to a section of the cross crushing column 330 away from the hydraulic cylinder 312. The connector 340 is a rectangular structure, and four cross sections of the rectangle are provided with through grooves 342. The middle part of the connector 340 is fixedly connected with an expansion bag 1 350; The cross crushing column 330 is fixedly connected to a suction machine 1 333 and a suction machine 2 334 inside, and is connected to an expansion bag 1 350 through a hose; The middle section of the expansion bag 1 350 is covered with the expansion bag 2 360, and is connected to the suction machine 2 334 through a hose passing through the interior of the expansion bag 1 350; The expansion bladder 350 has a cylindrical I-shaped structure, and has three interconnected bladder bodies inside. The diameter of the expansion bladder 350 is larger at the two sides and smaller in the middle. The second expansion bladder 360 is in the shape of a hollow cylindrical structure, and its diameter is equal to the diameter of the upper and lower circles of the first expansion bladder 350; The first expansion bladder 350 and the second expansion bladder 360 are both made of high-strength rubber material, and the thickness of both is 3 cm; The upper and lower ends of the connector 340 are symmetrically provided with two sets of fixing holes 341, with each set having two. A set of fixing holes 341 are symmetrically formed on both side ends of the connecting body 340; The opening of the fixing hole 341 is smaller than the diameter of the bottom; The connecting body 340 also includes a supporting block 390; The lower ends of the support member 1 370 and the support member 2 380 are fixedly connected with a support block 390; The connector 340 further includes a limiting rod 401; The lower end of the second support member 380 is symmetrically fixedly connected to two limit rods 401; The lower end of the support member 370 is symmetrically fixedly connected with four limiting rods 401; The limiting rod 401 is slidably connected to the fixing hole 341, and the diameter of the limiting rod 401 is the same as the opening diameter of the fixing hole 341; A limiting block 334 is provided at the bottom of the limiting rod 401 to prevent the limiting rod 401 from sliding out of the fixing hole 341; The limit block 334 also includes a spring 391; One end of the spring 391 is fixedly connected to the bottom of the limit block 334, and the other end is fixedly connected to the bottom of the fixing hole 341, and its function is to return the support member 1 370 and the support member 2 380 to their original positions through elastic force; The support blocks 390 of the support member 1 370 and the support member 2 380 are slidably connected in the through slot 342 by cooperating with the fixing hole 341 through the limiting rod 401; When the cross crushing column 330 impacts and enters the interior of the concrete 120, the air supply to the expansion bag 1 350 is expanded by the air supply machine 1 333 to lift the support member 1 370 and the support member 2 380, and then the air supply machine 2 334 is inflated and deflated to make the support member 1 and the support member 2 380 reciprocate to expand the surface of the crushed concrete 120 outward, thereby improving the working efficiency of the cross crushing column 330; effectively solving the problem that when the cross crushing column 330 impacts and enters the interior of the concrete 120 multiple times, it is difficult to further expand the crack after entering the interior of the concrete 120 because the cross crushing column 330 is of a fixed size; Embodiment 4: Since the cross crushing column 330 cannot impact the concrete 120 when it is retracted, in order to effectively utilize the time when the cross crushing column 330 is retracted to improve work efficiency, the cross crushing column 330 and the connecting plate 310 are improved; like Figures 16 to 17 As shown, the connector 340 further includes a limiting rod 401; The lower end of the second support member 380 is symmetrically fixedly connected to two limit rods 401; The lower end of the support member 370 is symmetrically fixedly connected with four limiting rods 401; The limiting rod 401 is slidably connected to the perforation, and the diameter of the limiting rod 401 is the same as the opening diameter of the fixing hole 341; A limiting block is provided at the bottom of the limiting rod 401 to prevent the limiting rod 401 from sliding out of the fixing hole; The support blocks 390 of the support member 1 370 and the support member 2 380 are slidably connected in the through slot 342 by cooperating with the fixing hole 341 through the limiting rod 401; The lower end of the cross crushing column 330 is provided with a placement cavity 335; The cross crushing column 330 also includes an impact assembly; The impact assembly also includes a connecting member 400, an impact bent plate 332, a rotary motor 410 and an action member 420; The connecting member 400 is rotatably connected to the side end surface of the placement cavity 335 and is close to the supporting member 1 370; The rotary motor 410 is fixedly connected in the connecting plate 310 and is close to the placement cavity 335; One end of the action member 420 is rotatably connected to the output end of the rotary motor 410; The action member 420 further includes an upper action column 430, a lower action column 440, an upper built-in cavity 421 and a lower built-in cavity 422; One end of the upper action column 430 is slidably connected to the upper built-in cavity 421, and the other end is rotatably connected to the connecting member 400; One end of the lower action column 440 is slidably connected to the lower built-in cavity 422, and the other end is fixedly connected to the impact bent plate 332; The upper built-in cavity 421 and the lower built-in cavity 422 are connected; When the hydraulic cylinder 312 retracts the cross crushing column 330, the cross crushing column 330 drives the upper action column 430 to squeeze back in the upper built-in cavity 421, so that the lower action column 440 moves outward and the impact bent plate 332 impacts and squeezes the concrete 120; while the cross crushing column 330 is retracted, the impact assembly lifts and pre-impacts the concrete 120 in the next section, so that when the cross crushing column 330 moves down for impact, it is easier to smash the concrete 120, and the impact angle can be adjusted by the rotating motor 410, which greatly improves the work efficiency; effectively solves the problem of not being able to effectively use the time of the cross crushing column 330 when it is retracted to improve the work efficiency; The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction engineering pile cutting equipment, comprising an inner milling mechanism, a crushing mechanism and an outer milling cylinder (100), wherein the crushing mechanism and the inner milling mechanism are arranged inside the outer milling cylinder (100); a motor compartment (101) is rotatably connected to the top of the outer milling cylinder (100), and a motor (102) is fixedly connected to the motor compartment (101), characterized in that: The outer milling cylinder (100) has an inner cylinder cavity (103) formed inside, and the bottom of the outer milling cylinder (100) is an open cylinder structure, the opening diameter of which is smaller than the maximum diameter of the outer milling cylinder (100), and serves to leave space for concrete (120) powder to be discharged; The outer milling cylinder (100) further comprises an outer grinding tooth (104), a connecting cylinder (210) and a rotating shaft (200); The bottom of the external milling cylinder (100) is fixedly connected around an axis to a plurality of groups of external grinding teeth (104); The lower end section of the outer milling cylinder (100) is provided with a plurality of waste material outlets (105); One end of the rotating shaft (200) is fixedly connected to the output end of the motor (102), and the other end passes through the outer milling cylinder (100) and is connected to an inner milling mechanism; The connecting tube (210) is coaxially fixedly connected to the top of the inner tube cavity (103); The lower end of the connecting tube (210) is connected to a striking mechanism.

2. A construction engineering pile cutting equipment as claimed in claim 1, characterized in that: The internal milling mechanism also includes a rotating column (220), an internal milling plate (230), a spiral blade (240), an internal grinding tooth (231), and a positioning drill bit (232); One end of the rotating column (220) is fixedly connected to the end surface of the other end of the rotating shaft (200), and the other end of the rotating column (220) is fixedly connected to an inner milling plate (230); The outer cross section of the rotating column (220) is fixedly connected with a spiral blade (240); The inner milling plate (230) is a fan-shaped structure, and the diameter of the inner milling plate (230) is smaller than the diameter of the bottom opening of the outer milling cylinder (100); The sector-shaped bottom surface of the inner milling plate (230) is fixedly connected to a plurality of groups of inner grinding teeth (231); A positioning drill bit (232) is coaxially and fixedly connected to the bottom surface of the inner milling plate (230).

3. A construction engineering pile cutting equipment as claimed in claim 2, characterized in that: The impact mechanism also includes a support plate (300) and a connecting plate (310); The support plate (300) is fixedly connected to the lower end section of the rotating shaft (200); The support plate (300) comprises an electromagnet (301); The electromagnet (301) is fixedly connected to the outer circular cross-section of the support plate (300) around an axis, and there are a plurality of electromagnets (301); The connecting plate (310) is coaxially fixedly connected to the lower bottom surface of the supporting plate (300); A plurality of slide grooves (311) are formed in the connection disk (310) around the axis. The connection disk (310) further comprises a hydraulic cylinder (312) and a crushing column (320); One end of the slide groove (311) is fixedly connected to a hydraulic cylinder (312); The position of the slide groove (311) is between the two electromagnets (301), and the number of the slide grooves (311) is the same as the number of the electromagnets (301); The pounding column (320) is fixedly connected to the output end of the hydraulic cylinder (312); The output end of the crushing column (320) is an arc-shaped structure; The crushing columns (320) are slidably connected in the slide groove (311) via a hydraulic cylinder (312), and the number of the crushing columns (320) is the same as the number of the slide grooves (311).

4. A construction engineering pile cutting equipment as claimed in claim 3, characterized in that: It comprises a cross crushing column (330), wherein the cross crushing column (330) is formed by two crushing columns (320) being cross-fixedly connected; The cross crushing column (330) further includes an impact needle (331) and an impact bent plate (332); The output end of the cross crushing column (330) is fixedly connected to a striking needle (331), and the end sides of the cross crushing column (330) are fixedly connected to striking bent plates (332).

5. A construction engineering pile cutting equipment as claimed in claim 4, characterized in that: The cross crushing column (330) further comprises a connecting body (340), a supporting member 1 (370), a supporting member 2 (380), an expansion bag 1 (350), a suction conveyor 1 (333), a suction conveyor 2 (334) and an expansion bag 2 (360); A connecting body (340) is fixedly connected to a section of the cross crushing column (330) away from the hydraulic cylinder (312); the connecting body (340) is a rectangular structure, and four cross sections of the rectangle are provided with through grooves (342); An expansion bag 1 (350) is fixedly connected to the middle portion of the connector (340); The cross crushing column (330) is fixedly connected to a suction conveyor 1 (333) and a suction conveyor 2 (334) inside, and is connected to an expansion bag 1 (350) via a hose; The middle section of the expansion bag 1 (350) is covered with the expansion bag 2 (360), and is connected to the suction machine 2 (334) through a hose passing through the interior of the expansion bag 1 (350).

6. A construction engineering pile cutting equipment as claimed in claim 5, characterized in that: The expansion bladder 1 (350) has a cylindrical I-shaped structure, and has three interconnected bladder bodies inside. The diameter of the expansion bladder 1 (350) is larger at the two sides and smaller in the middle; The shape of the second expansion bladder (360) is a hollow cylindrical structure, and the diameter is equal to the diameter of the upper and lower circles of the first expansion bladder (350); The expansion bladder 1 (350) and the expansion bladder 2 (360) are both made of high-strength rubber material, and both are 3 cm thick.

7. A construction engineering pile cutting equipment as claimed in claim 6, characterized in that: Two groups of fixing holes (341) are symmetrically formed at the upper and lower ends of the connecting body (340), with each group having two fixing holes; A group of fixing holes (341) are symmetrically formed at both side ends of the connecting body (340); The opening of the fixing hole (341) is smaller than the diameter of the bottom; The connecting body (340) further includes a supporting block (390); The lower ends of the support member 1 (370) and the support member 2 (380) are fixedly connected with a support block (390).

8. A construction engineering pile cutting equipment as claimed in claim 7, characterized in that: The connector (340) further includes a limiting rod (401); The lower end of the second support member (380) is symmetrically fixedly connected to two limiting rods (401); Four limiting rods (401) are symmetrically fixedly connected to the lower end of the support member 1 (370); The limiting rod (401) is slidably connected to the fixing hole (341), and the diameter of the limiting rod (401) is the same as the opening diameter of the fixing hole (341); A limiting block (334) is provided at the bottom of the limiting rod (401) to prevent the limiting rod (401) from sliding out of the fixing hole (341); The limit block (334) further includes a spring (391); One end of the spring (391) is fixedly connected to the bottom of the limit block (334), and the other end is fixedly connected to the bottom of the fixing hole (341), and its function is to return the support member 1 (370) and the support member 2 (380) to their original positions through elastic force; The support blocks (390) of the support member 1 (370) and the support member 2 (380) are slidably connected in the through slot (342) by cooperating with the fixing hole (341) via a limiting rod (401).

9. A construction engineering pile cutting equipment as claimed in claim 8, characterized in that: The lower end of the cross crushing column (330) is provided with a placement cavity (335); The cross crushing column (330) also includes an impact assembly; The impact assembly also includes a connecting member (400), an impact bending plate (332), a rotary motor (410), and an action member (420); The connecting member (400) is rotatably connected to a side end surface of the placement cavity (335) and is close to the first supporting member (370); The rotary motor (410) is fixedly connected inside the connection disk (310) and is close to the placement cavity (335); One end of the action member (420) is rotationally connected to the output end of the rotary motor (410).

10. A construction engineering pile cutting equipment as claimed in claim 9, characterized in that: The action member (420) further comprises an upper action column (430), a lower action column (440), an upper built-in cavity (421) and a lower built-in cavity (422); One end of the upper action column (430) is slidably connected in the upper built-in cavity (421), and the other end is rotatably connected to the connecting member (400); One end of the lower action column (440) is slidably connected in the lower built-in cavity (422), and the other end is fixedly connected to the impact bent plate (332); The upper built-in cavity (421) and the lower built-in cavity (422) are arranged in communication.

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