CN111074891A - Pile cutting equipment for breaking pile head concrete structure and using method thereof - Google Patents
Pile cutting equipment for breaking pile head concrete structure and using method thereof Download PDFInfo
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- CN111074891A CN111074891A CN201911397106.9A CN201911397106A CN111074891A CN 111074891 A CN111074891 A CN 111074891A CN 201911397106 A CN201911397106 A CN 201911397106A CN 111074891 A CN111074891 A CN 111074891A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/005—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof removing the top of placed piles of sheet piles
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Abstract
The invention belongs to the technical field of building construction equipment, and particularly relates to pile cutting equipment for breaking a pile head concrete structure and a using method thereof. A pile cutting device for breaking a pile head concrete structure comprises a base, a plurality of support plates, a plurality of adjusting devices, a plurality of drill rods and a plurality of driving devices. The base is provided with a plurality of sliding chutes. A plurality of extension boards evenly set up around the circumference of pile head. The support plate corresponds to the sliding grooves one by one and is connected in a sliding mode. The adjusting device is arranged on the base and corresponds to the support plates one by one. The first end of the adjusting device is connected with the base, the second end of the adjusting device is connected with the supporting plate, and the supporting plate is driven to move along the sliding groove. The drill rods correspond to the support plates one by one and are connected in a rotating mode. The driving device is arranged on the support plate and connected with the drill rod to drive the drill rod to rotate. The equipment can quickly cut off the concrete structure of the pile head, saves time and labor in the operation process, reduces the labor intensity of constructors, and improves the construction efficiency.
Description
Technical Field
The invention belongs to the technical field of building construction equipment, and particularly relates to pile cutting equipment for breaking a pile head concrete structure and a using method thereof.
Background
The bearing platform is a reinforced concrete platform which is arranged at the top of the pile and used for connecting the pile tops in order to bear and distribute the load transmitted by the pile. The bearing platform connects several or even more than ten pile columns together to form a pile foundation. Among them, the low pile cap is generally buried in the soil or partially buried in the soil, and is used for industrial or civil buildings. In order to enhance the connection strength of the pile and the bearing platform, the pile head generally extends into the bearing platform by 0.1 meter, and is anchored into the bearing platform by steel bars, and other structures are cast on the bearing platform to form a complete force transmission system.
When the bored concrete pile was under construction, the concrete was at the vibrating in-process, because the thick liquid upwards returns, and pile head part is difficult to avoid falling into impurity such as earth during concrete placement moreover, and the yawing force of concrete can lead to necking down phenomenon, consequently, pile head intensity is difficult to guarantee. The construction specification stipulates that: when the cast-in-place pile is constructed, the actual elevation of the pile top is 0.5-1 m higher than the designed elevation so as to ensure the concrete strength of the pile head; however, in the subsequent construction of the bearing platform, the pile head part higher than the designed elevation must be chiseled off, and the part is called a cut-off pile head.
At present, the pile head is cut by manual operation, and a constructor is required to manually chisel off a concrete structure exceeding the designed elevation. The operation process is time-consuming and labor-consuming, the labor intensity is high, the construction efficiency is low, and the requirement of the construction period is difficult to be finished.
Disclosure of Invention
In view of this, the embodiment of the invention provides pile cutting equipment for breaking a pile head concrete structure and a using method thereof, and aims to solve the problems that manual operation is time-consuming and labor-consuming and the construction efficiency is low in the prior art.
In order to achieve the above object, according to a first aspect of embodiments of the present invention, there is provided a pile cutting apparatus for breaking a pile head concrete structure, comprising:
the base is provided with a plurality of sliding grooves and is used for being connected with the engineering machinery; the length direction of each sliding chute is parallel to the radial direction of the pile head;
the support plates are used for being uniformly arranged around the circumference of the pile head; the support plates correspond to the sliding grooves one by one and are connected in a sliding manner;
a plurality of adjusting devices, all arranged on the base; the adjusting devices correspond to the support plates one by one; the first end of the adjusting device is connected with the base, and the second end of the adjusting device is connected with the corresponding support plate and used for driving the corresponding support plate to move along the corresponding sliding groove;
a plurality of drill rods; the drill rods correspond to the support plates one by one and are rotatably connected with the support plates; and
a plurality of driving devices; the driving devices correspond to the drill rods one to one; the driving device is arranged on the corresponding support plate, is connected with the corresponding drill rod and is used for driving the corresponding drill rod to rotate.
As another embodiment of the present application, the adjusting device includes:
and the cylinder body is arranged on the base, and the telescopic rod is connected with the corresponding support plate and used for driving the corresponding support plate and moving along the corresponding sliding groove.
As another embodiment of the present application, the driving apparatus includes:
the driven wheel is connected with the drill rod and is used for driving the drill rod to rotate; and
and the driving component is connected with the driven wheel and is used for driving the driven wheel to rotate.
As another embodiment of the present application, the driving member includes:
the driving wheel is meshed with the driven wheel and is used for driving the driven wheel to rotate; and
and the motor component is connected with the driving wheel and is used for driving the driving wheel to rotate.
As another embodiment of the present application, the driving apparatus further includes:
the sleeve is connected with the support plate, and the axial direction of the sleeve is perpendicular to the axial direction of the pile head;
the screw rod penetrates through the sleeve and is in threaded connection with the sleeve; the first end of the screw rod is connected with the drill rod, and the second end of the screw rod is connected with the driven wheel, and the screw rod is driven by the driven wheel to rotate and move along the axial direction of the sleeve; and
and the connecting block is rotationally connected with the lead screw, is connected with the driving component and is used for driving the driving component to move.
As another embodiment of the present application, the driving apparatus further includes:
the bottom plate is connected with the driving member, is connected with the connecting block and is used for driving the driving member to move under the driving of the connecting block; the bottom plate is connected with the support plate in a sliding mode.
As another embodiment of the present application, the driving apparatus further includes:
the base is connected with the support plate and is provided with a guide groove;
the bottom plate is provided with a guide block which is in sliding fit with the guide groove.
As another embodiment of the present application, the driving apparatus further includes:
and the first end of the vertical plate is connected with the base, and the second end of the vertical plate is connected with the base in a sliding manner.
As another embodiment of the present application, the base is provided with a slide rail; the length direction of the slide rail is parallel to the length direction of the sliding chute; the vertical plate is provided with a sliding block which is in sliding fit with the sliding rail.
In a second aspect of the embodiments of the present invention, there is provided a method for using a pile cutting apparatus for breaking a pile head concrete structure, including:
moving the base until the pile head is positioned in a space surrounded by the support plates;
driving the corresponding support plate to move through each adjusting device until each drill rod is close to the pile head;
rotating the base until each drill rod avoids the position of the pile head steel bar;
and starting each adjusting device and each driving device to enable each drill rod to drill into the pile head.
Due to the adoption of the technical scheme, the invention has the technical progress that:
the base is provided with a plurality of chutes and is used for being connected with engineering machinery. The length direction of each sliding groove is used for being parallel to the radial direction of the pile head. A plurality of extension boards are used for evenly setting around the circumference of pile head. The support plate corresponds to the sliding grooves one by one and is connected in a sliding mode. A plurality of adjusting device all set up on the base. The adjusting devices correspond to the support plates one by one. The first end of the adjusting device is connected with the base, and the second end of the adjusting device is connected with the corresponding support plate and used for driving the corresponding support plate to move along the corresponding sliding groove. The drill rods correspond to the support plates one by one and are connected in a rotating mode. The driving devices correspond to the drill rods one by one. The driving device is arranged on the corresponding support plate, is connected with the corresponding drill rod and is used for driving the corresponding drill rod to rotate.
When the pile cutting device is used, the engineering machinery drives the whole pile cutting equipment to move through the base, so that the pile head is located in a space formed by surrounding of the support plates. The adjusting device drives the support plate to move so as to adapt to pile heads with different diameters, and the support plate drives the drill rod to move so as to enable the drill rod to be close to the pile heads. And then the base is rotated to drive the whole pile cutting equipment to rotate until each drill rod avoids the position of the pile head reinforcing steel bar.
And then, starting the driving device, driving the drill rod to rotate by the driving device, and when the adjusting device and the driving device are started simultaneously, drilling the drill rod into the concrete of the pile head. Because the compressive strength of the concrete is high, but the shearing strength is low, when each drill rod drills into the concrete structure along different directions, the concrete can be cut off, and the purpose of cutting off the pile head is achieved.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the pile cutting equipment in the scheme can cut the concrete structure of the pile head quickly, the time and labor are saved in the operation process, the labor intensity of constructors is reduced, and the construction efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 is a schematic view of a pile cutting apparatus for breaking a pile head concrete structure according to an embodiment of the present invention;
FIG. 2 is a top view of the base, runner, brace and cylinder provided by the present invention;
FIG. 3 is a schematic view of a support plate and a drill rod provided by an embodiment of the invention in use;
FIG. 4 is a schematic diagram of the connection of the base, the support plate, the hydraulic cylinder, the drill rod and the driving device provided by the embodiment of the invention;
FIG. 5 is a schematic structural diagram of a driving device according to an embodiment of the present invention;
fig. 6 is a schematic view of the connection of the pile, the cap and the pile head.
Description of reference numerals:
10. a base; 101. a chute; 11. a top plate; 12. a connecting rod; 20. a support plate; 21. a hydraulic cylinder; 30. a drill stem; 31. a driven wheel; 32. a driving wheel; 33. a motor assembly; 34. a sleeve; 35. a lead screw; 36. connecting blocks; 37. a base plate; 371. a guide block; 38. a base; 381. a guide groove; 39. a vertical plate.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The embodiment of the invention provides pile cutting equipment for breaking a pile head concrete structure. Referring to fig. 1, 2, 3 and 4, a pile cutting apparatus for breaking a pile head concrete structure includes a base 10, a plurality of plates 20, a plurality of adjustment devices, a plurality of drill rods 30 and a plurality of driving devices. The base 10 is provided with a plurality of sliding grooves 101 and is used for being connected with the construction machine. The length direction of each runner 101 is used to be parallel to the radial direction of the pile head. A plurality of struts 20 are provided for uniform placement around the circumference of the pile head. The support plates 20 correspond to the sliding grooves 101 one by one and are connected in a sliding manner. A plurality of adjustment devices are provided on the base 10. The adjustment devices correspond one-to-one with the brackets 20. The first end of the adjusting device is connected to the base 10, and the second end is connected to the corresponding support plate 20, for driving the corresponding support plate 20 to move along the corresponding sliding groove 101. The drill rods 30 correspond to the support plates 20 one by one and are rotatably connected. The driving devices correspond to the drill rods 30 one by one. The driving device is arranged on the corresponding support plate 20 and connected with the corresponding drill rod 30 for driving the corresponding drill rod 30 to rotate.
When the pile cutting device is used, the engineering machinery drives the integral pile cutting equipment to move through the base 10, so that the pile head is located in a space surrounded by the support plates 20. The adjustment mechanism moves the support plate 20 to accommodate pile heads of different diameters, and the support plate 20 moves the drill rod 30 to bring the drill rod 30 close to the pile head. The base 10 is then rotated to rotate the integral pile cutting apparatus to a position where each drill rod 30 avoids the pile head reinforcement.
Then the driving device is started, the driving device drives the drill rod 30 to rotate, and when the adjusting device and the driving device are started simultaneously, the drill rod 30 starts to drill into the concrete of the pile head. Since the concrete has a high compressive strength but a low shear strength, when each drill rod 30 is driven into the concrete structure in different directions, the concrete can be cut off, thereby achieving the purpose of cutting off the pile head.
Referring to fig. 6, the construction specification stipulates that, during cast-in-place pile construction, the actual elevation of the pile head is 0.5 m to 1 m higher than the designed elevation, so as to ensure the concrete strength of the pile head. In addition, the concrete on the periphery of the reinforcing steel bars is a reinforcing steel bar protective layer, and the effect of protecting the reinforcing steel bars of the pile head is achieved. After the pile head is cut, the height of the concrete of the pile head is a designed elevation, the length of the stripped pile head steel bar is 0.5-1 m, and the pile head steel bar and a steel bar cage of the bearing platform are bound into a whole, so that the connecting strength of the pile head and the bearing platform is improved.
In the prior art, manual operation wastes time and labor, and due to the fact that the height of the pile head reaches the waist of an adult, a constructor needs to bend down to operate during operation, and fatigue is prone to occurring. And once the constructor arm is unstable, easily cut off the reinforcing bar. If in the pile head cutting construction process, the pile head reinforcing steel bars are damaged and cannot be connected with the reinforcing cage of the bearing platform, the strength of the pile head reinforcing steel bars can be reduced even if a repair welding mode is adopted, the connecting strength of the pile head and the bearing platform is finally reduced, and potential safety hazards are left.
As shown in fig. 3, the present embodiment provides a pile cutting apparatus for: and (4) breaking the concrete structure of the pile head after stripping the pile head steel bars. Compare in manual work, this equipment can cut fast and surpass the concrete structure of design elevation, and labour saving and time saving can avoid the pile head reinforcing bar moreover to the integrality of protection pile head reinforcing bar.
In addition, in the prior art, a drill rod of the pile breaking machine can be used for extruding the pile body, so that the pile head is broken. However, the reinforcing steel bars are easily damaged in the mode, so that the pile head reinforcing steel bars cannot be bound with the reinforcement cage of the bearing platform, and the connection strength of the pile and the bearing platform is further influenced. Even if the pile head reinforcing steel bars are stripped and the pile breaking machine is used for operation, the pile breaking machine cannot be matched with the pile head due to the fact that construction is not standard and most of pile diameters are irregular in practical application; moreover, the pile breaking machine has high purchasing cost and cannot be popularized and used in a large range. The pile cutting equipment provided by the embodiment can adapt to pile heads with different diameters, is low in processing cost and has good actual popularization value.
Specifically, the axial direction of the pile head is a vertical direction, and the direction perpendicular to the axial direction of the pile head is a horizontal direction. Thus, the foot 20 is vertically disposed, the adjustment device is attached to the top end of the foot 20, and the adjustment device drives the foot 20 in a horizontal direction.
Specifically, the pile cutting equipment for breaking the pile head concrete structure further comprises a top plate 11 and a connecting rod 12. The top plate 11 is used for connecting with the engineering machinery. The link 12 is connected at a first end to the top plate 11 and at a second end to the base 10. Specifically, the top plate 11 and the engineering machine may be connected by bolts or threads or clamped. Specifically, the connecting rod 12 and the top plate 11 may be bolted or welded, and the connecting rod 12 and the base 10 may be bolted or welded.
Specifically, the adjusting device may adopt a transmission form of a lead screw nut, a transmission form of a gear rack, and a form of a hydraulic cylinder, an air cylinder or an electric cylinder. Specifically, the driving device may adopt a mode of combining a speed regulating motor and a transmission structure.
As an example, and as shown in connection with fig. 4, the adjusting means comprise a hydraulic cylinder 21. The cylinder body of the hydraulic cylinder 21 is arranged on the base 10, and the telescopic rod is connected with the corresponding support plate 20 and used for driving the corresponding support plate 20 to move along the corresponding chute 101.
The hydraulic cylinder 21 is horizontally arranged, and the telescopic rod drives the support plate 20 to move along the horizontal direction. Specifically, the hydraulic cylinder 21 is electrically connected to the engineering machine, and the engineering machine provides hydraulic power to the hydraulic cylinder 21 and controls the telescopic rod of the hydraulic cylinder 21 to extend or retract.
Specifically, the hydraulic cylinder 21 may be a hydraulic cylinder of type JB/ZQ4395-86, manufactured by yonan han hydro-pneumatic manufacturing ltd, or a hydraulic cylinder manufactured by north-Chuanbei hydro-mechanical ltd. Specifically, the base 10 is provided with a bracket for supporting the hydraulic cylinder 21.
As an example, as shown in fig. 4 and 5, the driving device includes a driven wheel 31 and a driving member. The driven wheel 31 is connected to the drill rod 30 and is used for driving the drill rod 30 to rotate. The driving member is connected to the driven wheel 31 and is used for driving the driven wheel 31 to rotate.
The driving member drives the driven wheel 31 to rotate, and the driven wheel 31 drives the drill rod 30 to rotate. Specifically, the driving member may adopt a mode of combining a motor and a belt pulley, a mode of combining a motor and a chain wheel and a chain, or a mode of combining a motor and a worm gear.
As an example, as shown in connection with fig. 4 and 5, the driving means comprises a driving wheel 32 and a motor assembly 33. The driving wheel 32 is engaged with the driven wheel 31 and is used for driving the driven wheel 31 to rotate. The motor assembly 33 is connected to the driving wheel 32 and is used for driving the driving wheel 32 to rotate.
The motor assembly 33 drives the driving wheel 32 to rotate, and the driving wheel 32 drives the driven wheel 31 to rotate. Specifically, because the gear transmission has high efficiency, operates stably, and occupies a small space, the driving wheel 32 and the driven wheel 31 both adopt the form of gears in this embodiment. Specifically, the motor assembly 33 may be a combination of a common motor and a speed reducer, or may be a speed-adjustable motor.
As an embodiment, as shown in fig. 4 and 5, the driving device further includes a sleeve 34, a lead screw 35, and a connecting block 36. The sleeve 34 is connected to the strip 20 and is axially oriented for perpendicular alignment with the pile head axis. The screw 35 is inserted into the sleeve 34 and is connected to the sleeve 34 by screw. The first end of the screw 35 is connected to the drill rod 30, and the second end is connected to the driven wheel 31, for rotating under the driving of the driven wheel 31 and moving along the axial direction of the sleeve 34. The connecting block 36 is rotatably connected to the lead screw 35 and connected to the driving member for driving the driving member to move.
As shown in fig. 3, if the drill rod 30 is driven to move in the horizontal direction by the adjusting device, that is: the drilling depth of the drill rod 30 is controlled by the hydraulic cylinder 21, so that the support plate 20 can collide with the pile head after moving a small distance; if the length of the drill rod 30 is set to be large, the middle part of the drill rod 30 is suspended, so that the drill rod 30 is subjected to large resistance when drilling into concrete, and the drill rod 30 is easy to shake or even break. Therefore, the sleeve 34 and the lead screw 35 are provided in the present embodiment.
The adjustment device is adapted to accommodate pile heads of different diameters and functions to coarsely adjust the drill pipe 30. In the initial stage of adjustment, the hydraulic cylinder 21 extends rapidly, so as to drive the support plate 20 to move rapidly, and the support plate 20 drives the drill rod 30 to approach the pile head rapidly; when the drill rod 30 is close to the pile head, the hydraulic cylinder 21 extends at a low speed, so that the drill rod 30 is driven to move at a low speed, and the drill rod 30 is prevented from colliding with the pile head to cause damage to the drill bit 30; when the drill rod 30 comes into contact with the concrete of the pile head, the hydraulic cylinder 21 is deactivated, and at this time, the rough adjustment of the position of the drill rod 30 is completed.
Then, the base 10 is driven by the engineering machinery to move in the vertical direction, that is: the height of the drill rod 30 is adjusted until the drill rod 30 is at the design elevation of the pile head. Then the base 10 is driven to rotate by the engineering machinery until each drill rod 30 avoids the position of the pile head reinforcing steel bar.
Then, the driving member is turned on, and the driven pulley 31 rotates the lead screw 35. Since the screw 35 is screwed to the sleeve 34 and the sleeve 34 is kept stationary, the screw 35 is rotated while moving in the axial direction of the sleeve 34. Since the axial direction of the sleeve 34 is perpendicular to the axial direction of the pile head, i.e.: the sleeve 34 is arranged horizontally, so that the screw 35, when rotated, moves simultaneously in the horizontal direction, i.e.: the screw 35 rotates the drill rod 30 and drives the drill rod 30 to move horizontally, so that the drill rod 30 is driven into the pile head. The sleeve 34 and lead screw 35 cooperate to precisely control the penetration depth of the drill rod 30.
When the screw 35 moves in the horizontal direction, the connecting block 36 is driven to move, and the connecting block 36 drives the driving member to move, so that the motor assembly 33, the driving wheel 32, the driven wheel 31 and the screw 35 move synchronously. Specifically, the lead screw 35 is connected to the connecting block 36 through a bearing. Specifically, the lead screw 35 rotates one turn and moves for a distance of 1 cm to 5 cm, so that the penetration depth of the drill rod 30 is 1 cm to 5 cm when the lead screw 35 rotates one turn. When the penetration speed of the drill rod 30 is low, the working efficiency is low; when the penetration speed of the drill rod 30 is high, the drill rod 30 is easily damaged, and therefore, the penetration speed of the drill rod 30 is set in the present embodiment as follows: the screw 35 rotates for one circle, and the drill rod 30 drills into the hole by 1 cm to 5 cm, so that the operation efficiency can be guaranteed, and the drill rod 30 can be prevented from being damaged. The number of the heads of the screw 35 is K, the pitch is H mm, and when the screw rotates one turn, the moving distance is K × H.
As an example, as shown in fig. 4 and 5, the driving device further includes a bottom plate 37. The bottom plate 37 is connected with the driving member and connected with the connecting block 36 for driving the driving member to move under the driving of the connecting block 36. The base plate 37 is slidably connected to the strip 20.
Specifically, the motor assembly 33 is disposed on the bottom plate 37 and is fixedly connected to the bottom plate 37. The bottom plate 37 and the connecting block 36 can be welded or bolted. When the screw 35 moves, the connecting block 36 is driven to move, the connecting block 36 drives the bottom plate 37 to move, and the bottom plate 37 drives the motor assembly 33 to move, so that the motor assembly 33, the driving wheel 32, the driven wheel 31 and the screw 35 synchronously move.
The motor assembly 33 is connected with the connecting block 36 through the bottom plate 37, so that the processing is convenient, and the spatial layout of each part is more reasonable. In addition, the support plate 20 supports the bottom plate 37, so that the bottom plate 37 is more stable and smooth when moving, and the damage to the screw 35 caused by the heavy load of one end of the screw 35 is avoided.
As an example, as shown in fig. 5, the driving device further includes a base 38. The base 38 is connected to the support plate 20 and has a guide slot 381. The base plate 37 is provided with a guide block 371 for sliding engagement with the guide groove 381.
Specifically, the base 38 and the plate 20 may be welded or integrally formed. The guide block 371 is matched with the guide groove 381, so that the bottom plate 37 can be supported, the lead screw 35 can be limited, and the lead screw 35 is prevented from exceeding a limit position when moving, causing collision or being separated from the sleeve 34.
As an embodiment, as shown in fig. 4 and 5, the driving device further includes a vertical plate 39. The first end of the vertical plate 39 is connected to the base 38, and the second end is slidably connected to the base 10.
The vertical plate 39 plays a supporting role for the base 38, and the situation that the end part of the support plate 20 is heavy and the support plate 20 is rocked or damaged is avoided. Specifically, the number of the vertical plates 39 is plural, so that the weight of the base 38 is shared more uniformly, and the bottom plate 37 is more stable and smooth when moving.
In addition, in the initial state of the adjusting support plate 20, the vertical plate 39 drives the base 38 to move, so that the load of the support plate 20 is shared, and the support plate 20 is more stable and smooth in moving.
As an example, the base 10 is provided with a slide rail. The length direction of the slide rail is parallel to the length direction of the slide groove 101. The vertical plate 39 is provided with a slide block for sliding fit with the slide rail. The slide rail is matched with the slide block, so that the vertical plate 39 drives the base 38 to move, and the support plate 20 is more stable in moving.
The embodiment of the invention also provides a use method of the pile cutting equipment for breaking the pile head concrete structure, which comprises the following steps: the method comprises the following steps: moving the base 10 until the pile head is positioned in the space surrounded by the support plates 20; step two: driving the corresponding support plate 20 to move through each adjusting device until each drill rod 30 is close to the pile head; step three: rotating the base 10 until each drill rod 30 avoids the position of the pile head steel bar; step four: each adjusting device and each driving device are started to enable each drill rod 30 to drill into the pile head.
The purpose of step two is to accomplish a coarse adjustment of the drill rod 30, so that the drill rod 30 is in contact with the concrete of the pile head. The purpose of step four is to drill the drill rod 30 into the concrete structure, thereby cutting off the concrete structure of the pile head.
As an example, in step two, when each drill rod 30 is in contact with the concrete structure of the pile head, the hydraulic cylinder 21 is shut down; in the fourth step, the motor assembly 33 is started, so that the driven wheel 31 drives the screw rod 35 to rotate, the screw rod 35 drives the drill rod 30 to rotate, and simultaneously the drill rod 30 is driven to move along the horizontal direction, so that the drill rod 30 drills into the pile head.
In the third step, the base 10 is driven by the engineering machine to move in the vertical direction until the drill rod 30 is located at the designed elevation of the pile head, and then the base 10 is rotated.
The pile cutting equipment in the scheme can cut the concrete structure of the pile head quickly, the time and labor are saved in the operation process, the labor intensity of constructors is reduced, and the construction efficiency is improved.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A pile cutting apparatus for breaking up a pile head concrete structure, comprising:
the base is provided with a plurality of sliding grooves and is used for being connected with the engineering machinery; the length direction of each sliding chute is parallel to the radial direction of the pile head;
the support plates are used for being uniformly arranged around the circumference of the pile head; the support plates correspond to the sliding grooves one by one and are connected in a sliding manner;
a plurality of adjusting devices, all arranged on the base; the adjusting devices correspond to the support plates one by one; the first end of the adjusting device is connected with the base, and the second end of the adjusting device is connected with the corresponding support plate and used for driving the corresponding support plate to move along the corresponding sliding groove;
a plurality of drill rods; the drill rods correspond to the support plates one by one and are rotatably connected with the support plates; and
a plurality of driving devices; the driving devices correspond to the drill rods one to one; the driving device is arranged on the corresponding support plate, is connected with the corresponding drill rod and is used for driving the corresponding drill rod to rotate.
2. A pile cutting apparatus for breaking a pile head concrete structure according to claim 1, wherein the adjustment device comprises:
and the cylinder body is arranged on the base, and the telescopic rod is connected with the corresponding support plate and used for driving the corresponding support plate and moving along the corresponding sliding groove.
3. A pile cutting apparatus for breaking a pile head concrete structure according to claim 1, wherein the driving means comprises:
the driven wheel is connected with the drill rod and is used for driving the drill rod to rotate; and
and the driving component is connected with the driven wheel and is used for driving the driven wheel to rotate.
4. A pile cutting apparatus for breaking pile head concrete structures according to claim 3, wherein the driving member comprises:
the driving wheel is meshed with the driven wheel and is used for driving the driven wheel to rotate; and
and the motor component is connected with the driving wheel and is used for driving the driving wheel to rotate.
5. A pile cutting apparatus for breaking a pile head concrete structure according to claim 3, wherein the driving means further comprises:
the sleeve is connected with the support plate, and the axial direction of the sleeve is perpendicular to the axial direction of the pile head;
the screw rod penetrates through the sleeve and is in threaded connection with the sleeve; the first end of the screw rod is connected with the drill rod, and the second end of the screw rod is connected with the driven wheel, and the screw rod is driven by the driven wheel to rotate and move along the axial direction of the sleeve; and
and the connecting block is rotationally connected with the lead screw, is connected with the driving component and is used for driving the driving component to move.
6. A pile cutting apparatus for breaking a pile head concrete structure according to claim 5, wherein the driving means further comprises:
the bottom plate is connected with the driving member, is connected with the connecting block and is used for driving the driving member to move under the driving of the connecting block; the bottom plate is connected with the support plate in a sliding mode.
7. A pile cutting apparatus for breaking a pile head concrete structure according to claim 6, wherein the driving means further comprises:
the base is connected with the support plate and is provided with a guide groove;
the bottom plate is provided with a guide block which is in sliding fit with the guide groove.
8. A pile cutting apparatus for breaking a pile head concrete structure according to claim 7, wherein the driving means further comprises:
and the first end of the vertical plate is connected with the base, and the second end of the vertical plate is connected with the base in a sliding manner.
9. A pile cutting apparatus for breaking a pile head concrete structure according to claim 8, wherein: the base is provided with a slide rail; the length direction of the slide rail is parallel to the length direction of the sliding chute; the vertical plate is provided with a sliding block which is in sliding fit with the sliding rail.
10. A method of using a pile cutting apparatus for breaking a pile head concrete structure, comprising:
moving the base until the pile head is positioned in a space surrounded by the support plates;
driving the corresponding support plate to move through each adjusting device until each drill rod is close to the pile head;
rotating the base until each drill rod avoids the position of the pile head steel bar;
and starting each adjusting device and each driving device to enable each drill rod to drill into the pile head.
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| CN112392046A (en) * | 2020-11-05 | 2021-02-23 | 薛彪 | Pile cutting machine for constructional engineering |
| CN113718771A (en) * | 2021-09-14 | 2021-11-30 | 焦立征 | Pile head chiseling device capable of being flexibly adjusted for pile foundation construction |
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|---|---|
| CN111074891B (en) | 2022-04-15 |
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