CN113981974A - Multidirectional linkage hydraulic cutting mechanism for building waste foundation piles - Google Patents
Multidirectional linkage hydraulic cutting mechanism for building waste foundation piles Download PDFInfo
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- CN113981974A CN113981974A CN202111250926.2A CN202111250926A CN113981974A CN 113981974 A CN113981974 A CN 113981974A CN 202111250926 A CN202111250926 A CN 202111250926A CN 113981974 A CN113981974 A CN 113981974A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
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Abstract
The invention discloses a multidirectional linkage hydraulic cutting mechanism for building waste foundation piles, which comprises an annular tool rest, wherein two groups of hydraulic cylinders are arranged on the outer circumferential wall of the annular tool rest along the axial direction of the annular tool rest, the output end of each hydraulic cylinder is provided with a shearing tool bit, a plurality of cutting mechanisms capable of primarily cutting pile heads are arranged in the annular tool rest, the inner wall of the annular tool rest is provided with a cutting hole, a driving motor is arranged in a transmission cavity, two toothed belts are rotatably arranged on the outer circumferential wall of the annular tool rest along the circumferential direction of the annular tool rest, the toothed belts sequentially and movably penetrate through the plurality of transmission cavities, and the output end of the driving motor is provided with a driving gear matched with the toothed belts. According to the invention, the cutting blades are used for quickly cutting the reinforcing steel bars in the pile head in advance, the strong shearing effect of the hydraulic cylinder is directly used for extruding and shearing the pile head, the pile head pulling working hour is shortened, and the plurality of cutting seams are formed on the outer wall of the pile head in advance through the plurality of cutting blades, so that the oblique pushing resistance of the shearing cutter head is greatly reduced, and the pulling efficiency of the waste pile foundation is further improved.
Description
Technical Field
The invention relates to the field of foundation pile circular cutting, in particular to a multidirectional linkage hydraulic cutting mechanism for a building waste foundation pile.
Background
In the construction process of a building foundation, an original structure waste wharf is often encountered, the old foundation has waste foundation piles, the construction of a new structure, a pier and the foundation is influenced, the design influences the engineering quality of the new foundation due to the consideration of the bearing capacity and the settlement coefficient of the new foundation and the eccentric stress of the old foundation piles, a construction unit is required to pull out the waste foundation piles in the old foundation, and particularly, some waste piles have no utilization value and must be pulled out. In the process of pulling out the waste foundation piles, the adsorption force and the bonding force between the waste foundation piles and the soil of a foundation are large for a long time and cannot be calculated correctly, namely the waste piles are difficult to treat, a large crane cannot be pulled out completely, and safety accidents such as steel wire rigging breakage and damage, mechanical rollover and the like are easily caused in the process of pulling out the waste foundation piles. Therefore, for the above waste pile, the construction unit usually exposes the pile head of the waste pile after excavating the foundation pit, and then chisels the waste pile by using a seven-step circular cutting method, and the starting circular cutting method includes: the method comprises the steps of lofting and marking-out, circular cutting, slotting, stripping steel bars, cutting off pile heads, pile head separation and trimming, all the steps are carried out one by one manually, particularly chiseling treatment on a plurality of large-diameter pile heads, the manual labor intensity is high, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a multidirectional linkage hydraulic cutting mechanism for a building waste foundation pile, and the multidirectional linkage hydraulic cutting mechanism is used for solving the problems.
The invention is realized by the following technical scheme:
a multidirectional linkage hydraulic cutting mechanism for building abandoned foundation piles comprises an annular cutter frame, wherein a cavity is arranged in the annular cutter frame, two groups of hydraulic cylinders are arranged on the outer circumferential wall of the annular cutter frame at intervals along the axial direction of the annular cutter frame, the two groups of hydraulic cylinders are arranged in a staggered manner, a shearing cutter head is arranged at the output end of each hydraulic cylinder, the hydraulic cylinders are arranged in an inclined manner, an acute angle alpha is formed between the axis of the output end of each hydraulic cylinder and the axis of the annular cutter frame, a plurality of cutting mechanisms capable of primarily cutting pile heads are arranged in the annular cutter frame, a cutting hole for a cutting part of each cutting mechanism to penetrate through is formed in the inner wall of the annular cutter frame, a transmission cavity corresponding to each hydraulic cylinder is arranged on the outer circumferential wall of the annular cutter frame, a driving motor is arranged in the transmission cavity, two annular toothed belts are rotatably arranged on the outer circumferential wall of the annular cutter frame along the circumferential direction of the annular cutter frame, and sequentially and movably penetrate through the transmission cavities, the local part of the cutting mechanism is connected with the upper end surface of the toothed belt, and the output end of the driving motor is provided with a driving gear matched with the toothed belt; during the use, a plurality of cutting pieces carry out the hoop cutting along the circumference of pile head outer wall, until forming two sets of cutting joints at the pile head outer wall, then two sets of pneumatic cylinders drive the shearing tool bit and begin respectively to cut the pile head along upper end, the lower extreme of two sets of cutting joints. Aiming at the problem that the efficiency of manually chiseling the exposed pile head in the foundation pit is low in the prior art, the applicant designs a cutting machine, replaces manpower with machinery, and directly extrudes and shears the pile head by utilizing the rapid cutting of a cutting blade on a reinforcing steel bar in the pile head in advance and the powerful shearing effect of a hydraulic cylinder, so that the shearing working time of the pile head is shortened; and a plurality of cutting joints formed on the outer wall of the pile head in advance through a plurality of cutting sheets, so that the oblique propulsion resistance of the shearing tool bit is greatly reduced, and the cutting efficiency of the waste pile foundation is improved.
Hoisting annular tool rest to the pile head outer wall through hoisting equipment, after confirming the cutting point location, keep the hoist and mount height of annular tool rest, cutting mechanism can carry out annular cutting along predetermineeing the cutting point location, two sets of pneumatic cylinders are along the axial staggered distribution of annular tool rest on the outer periphery wall of annular tool rest, a plurality of pneumatic cylinders form a set of promptly, and the pneumatic cylinder in same group is located same circumference orbit, and the two sets of pneumatic cylinder staggered distribution that the slope set up, can form the point location of cutting into of a plurality of not equidirectionals on the outer wall of pile head, the staggered distribution here can also understand: the position of one group of hydraulic cylinders is translated for a certain distance along the axial direction of the annular tool rest and then rotates in situ, namely the position of the hydraulic cylinders can be coincided with the position of the other group of hydraulic cylinders, the distribution of the plurality of cutting mechanisms corresponds to the distribution of the shearing tool bits, namely the plurality of cutting mechanisms are also divided into two groups, and two groups of cutting seams can be formed on the outer wall of the pile head when the pile head is used; during specific operation, firstly, a driving motor is started, a driving gear drives a toothed belt to perform circular motion on the outer wall of an annular tool rest, a cutting mechanism can move towards the direction close to the pile head along the radial direction of the annular tool rest until the cutting mechanism is contacted with the outer wall of the pile head, at the moment, cutting parts of two groups of cutting mechanisms penetrate through cutting holes and continuously move towards the direction close to the outer wall of the pile head, and meanwhile, circular motion can be performed around the circumferential direction of the annular tool rest, so that circular cutting of the pile head is realized, two groups of cutting seams are directly formed on the outer wall of the pile head, and the requirement for further pointing out is that the two groups of cutting seams are formed, so that the overall connection strength of the pile head is reduced, and particularly the performance at the set cutting point is more obvious; simultaneously after two sets of pneumatic cylinders that set up in a staggered way start, a plurality of shearing tool bits can be followed a plurality of angles and cut the pile head, because the bulk joint strength of pile head reduces, the shearing tool bit cuts into near the cutting seam, the concrete part near the shearing tool bit access point removes towards the cutting seam direction after the atress, two sets of shearing tool bits can form two shear grooves on the pile head fast, and cut into along with the continuation of shearing tool bit, the pile head can be cut the fracture in the short time, in order to conveniently to operate surplus cutting point position.
Wherein, because two annular cingulums are the parcel setting on annular knife rest outer wall, the removal displacement volume of single cutting piece is one-sixth or one-eighth of pile head outer wall circumference girth, and the reinforcing bar quantity that single cutting piece needs the cutting is at 3 ~ 5 for cutting piece can continuously guarantee its cutting efficiency at a plurality of cutting point positions.
The cutting mechanism comprises an air cylinder and a servo motor, the servo motor is arranged in the cavity, a cutting blade is arranged at the output end of the servo motor, the air cylinder is horizontally fixed on the upper end face of the toothed belt, an arc-shaped guide hole is formed in the outer circumferential wall of the annular knife rest, and the output end of the air cylinder is connected with the servo motor after passing through the guide hole. Furthermore, the cylinder is fixed on the upper end surface of the toothed belt, the output end of the cylinder is connected with the outer wall of the servo motor, when a cutting seam is formed, the movement of the two groups of cutting pieces comprises two linear movements along the axial direction of the output end of the cylinder and a circumferential movement along the circumferential direction of the annular tool rest, wherein the limit positions of the circumferential movement track are two ends of the guide hole, the two groups of cutting seams are formed on the outer wall of the pile head, namely the cylinder, the servo motor and the driving motor are started, so that the plurality of cutting pieces start to perform circumferential cutting along the outer circumferential wall of the pile head, at the moment, the steel bars in the pile head are directly and completely or partially cut by the cutting pieces, as the circular angle corresponding to the arc where the transmission cavity is located is smaller than 90 degrees, the arc length corresponding to the cutting hole is also smaller than the circumferential length of the inner circumference of the annular tool rest, namely, the movement stroke of a single cutting piece is limited, and when the servo motor moves to the limit position, the cylinder moves to the limit position, The servo motor and the driving motor stop working, the hydraulic cylinders which are obliquely arranged are started, so that the shearing tool bit starts to obliquely propel the pile head along the axis direction of the shearing tool bit.
And a plurality of lifting lugs are arranged on the upper end surface of the annular tool rest. As preferred, the lug that sets up at annular knife rest up end can make things convenient for the quick hoist and mount or the dismantlement of starting equipment.
The inner circle peripheral wall of the annular tool rest is provided with a plurality of guide cylinders matched with the hydraulic cylinders, the shearing tool bit is arranged in the guide cylinders after sequentially and movably penetrating through the annular tool rest, the output end of each hydraulic cylinder is provided with a baffle, the outer wall of the shearing tool bit is sleeved with a compression spring, and the compression spring is arranged between the baffle and the guide cylinders. Further, the guide cylinder can provide direction and limiting effect for the removal of shearing tool bit, and when shearing tool bit was cutting in carrying out the slant, pneumatic cylinder and shearing tool bit self homoenergetic received great reaction force and influence, consequently, set up compression spring between baffle and guide cylinder, the reaction force that produces when can shearing the pile head is eliminated, reduces the holistic impaired probability of device.
An acute angle alpha is formed between the axis of the output end of the hydraulic cylinder and the axis of the annular tool rest, and the acute angle alpha is more than or equal to 35 degrees and less than or equal to 65 degrees. Furthermore, the hydraulic cylinder is arranged obliquely, and the angle alpha formed between the axis of the output end of the hydraulic cylinder and the axis of the annular tool rest is 35-65 degrees, so that a plurality of contact points are arranged between the annular tool rest and the pile head within a certain height range, the cutting depth of the cutting tool head is ensured, the phenomenon that the cutting tool head slips with the outer wall of the pile head in the initial contact stage is avoided, and the possibility that the transmission cavity swings on the pile head can be greatly reduced.
A plurality of bottom plates are arranged in the annular tool rest, sliding grooves for the servo motor to perform linear reciprocating motion are formed in the upper surface of each bottom plate, sliding rails are arranged on the lower surface of each bottom plate, T-shaped guide grooves are formed in the inner wall of the bottom of the annular tool rest, guide blocks matched with the guide grooves are arranged at the bottoms of the sliding rails, a plurality of limiting holes which are arc-shaped and correspond to the transmission cavities are formed in the outer circumferential wall of the annular tool rest along the circumferential direction of the annular tool rest, and the arc length of each limiting hole is smaller than the arc length of the transmission cavity; the inner circumferential wall of the toothed belt is provided with a connecting rod, the connecting rod movably penetrates through the limiting hole and then is connected with the side wall of the bottom plate, and a space is reserved among the bottom plates. Further, servo motor can be with step circular motion and linear motion at whole shearing process, and can realize the cutting to the pile head in two kinds of motion processes, to this, this technical scheme sets up a plurality of bottom plates in annular knife rest, the bottom plate passes through connecting rod and cingulum inner wall connection, and the spout can provide the direction for servo motor's linear motion, and in the circumferential direction, servo motor, the bottom plate, cingulum and cylinder become a whole temporarily, and the cooperation is realized through slider and guide way to the bottom plate lower extreme, in order to ensure the stability of cutting piece when the cutting.
And a propelling plate matched with the servo motor is arranged on the outer circumferential wall of the servo motor, and the output end of the air cylinder is connected with the propelling plate. Preferably, the arc-shaped propelling plate is fixed on the outer wall of the servo motor, so that the thrust generated by the output end of the air cylinder is uniformly distributed on the servo motor, and damage caused by pause and contusion of a cutting blade during cutting is avoided.
And an annular partition plate is arranged in the annular tool rest and divides the annular tool rest into two mutually independent areas. Preferably, the annular tool rest is horizontally divided into two parts by the arranged partition plate, so that dust, chips and the like generated during cutting or shearing can be effectively reduced to enter the transmission cavity.
And each transmission cavity is provided with arc-shaped rubber ribs on the inner walls of two sides, and the servo motor is arranged between the two rubber ribs. Preferably, the output end of the air cylinder pushes the servo motor to move towards the direction close to or far away from the pile head, and when the servo motor moves to the limit position, the arranged rubber fillet can prevent the servo motor from directly colliding with the inner wall of the transmission cavity body in a rigid mode.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the multidirectional linkage hydraulic cutting mechanism for the building waste foundation pile replaces manpower with machinery, and the pile head is directly extruded and sheared by utilizing the rapid cutting of the cutting piece on the reinforcing steel bar in the pile head in advance and the powerful shearing effect of the hydraulic cylinder, so that the working time for removing the pile head is shortened; and a plurality of cutting joints formed on the outer wall of the pile head in advance through a plurality of cutting sheets, so that the oblique propulsion resistance of the shearing tool bit is greatly reduced, and the removal efficiency of the waste pile foundation is improved.
2. According to the multidirectional linkage hydraulic cutting mechanism for the waste foundation pile of the building, the two annular toothed belts are wrapped on the outer wall of the annular tool rest, the movement displacement of a single cutting blade is one sixth or one eighth of the circumference of the outer wall of the pile head, the number of reinforcing steel bars needing to be cut by the single cutting blade is 3-5, and the cutting efficiency of the cutting blade can be continuously guaranteed at a plurality of cutting points.
3. The invention relates to a multidirectional linkage hydraulic cutting mechanism for a building abandoned foundation pile.A plurality of bottom plates are arranged in an annular cutter frame, the bottom plates are connected with the inner wall of a toothed belt through connecting rods, a sliding groove can provide guidance for the linear motion of a servo motor, the bottom plates, the toothed belt and an air cylinder are temporarily integrated in the circumferential direction, and the lower ends of the bottom plates are matched with a guide groove through a sliding block so as to ensure the stability of a cutting piece during cutting.
4. According to the multidirectional linkage hydraulic cutting mechanism for the building waste foundation pile, the output end of the air cylinder pushes the servo motor to move towards the direction close to or away from the pile head, and when the servo motor moves to the extreme position, the arranged rubber ribs can prevent the servo motor from directly colliding with the inner wall of the transmission cavity body.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a longitudinal sectional view of the present invention.
Reference numbers and corresponding part names in the drawings:
1-pile head, 2-lifting lug, 3-annular tool rest, 4-toothed belt, 5-hydraulic cylinder, 6-transmission cavity, 7-cylinder, 8-connecting rod, 9-driving gear, 10-cutting seam, 11-sliding rail, 12-bottom plate, 13-pushing plate, 14-servo motor, 15-driving motor, 16-rubber fillet, 17-cutting piece, 18-cutting hole, 19-partition plate, 20-shearing tool bit, 21-baffle plate, 22-guide cylinder and 23-clamping piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
Referring to fig. 1 and 2, the present embodiment includes a circular tool rest 3, a cavity is provided in the circular tool rest 3, two sets of hydraulic cylinders 5 are provided on an outer circumferential wall of the circular tool rest 3 at intervals along an axial direction of the circular tool rest 3, the two sets of hydraulic cylinders 5 are arranged in a staggered manner, a shearing tool bit 20 is provided on an output end of the hydraulic cylinder 5, the hydraulic cylinders 5 are arranged in an inclined manner, an acute angle α is formed between an output end axis of the hydraulic cylinder 5 and an axis of the circular tool rest 3, a plurality of cutting mechanisms capable of primarily cutting the pile head 1 are provided in the circular tool rest 3, a cutting hole 18 for passing a cutting portion of the cutting mechanism is provided on an inner wall of the circular tool rest 3, a transmission cavity 6 corresponding to the hydraulic cylinder 5 is provided on the outer circumferential wall of the circular tool rest 3, a driving motor 15 is provided in the transmission cavity 6, two annular toothed belts 4 are rotatably provided on the outer circumferential wall of the circular tool rest 3 along the circumferential direction, the toothed belt 4 sequentially and movably penetrates through the transmission cavities 6, the part of the cutting mechanism is connected with the upper end face of the toothed belt 4, and a driving gear 9 matched with the toothed belt 4 is arranged on the output end of the driving motor 15.
During the concrete operation of this embodiment, hoist annular tool rest 33 to pile head 11 outer wall through hoisting equipment on, after confirming the cutting point position, keep annular tool rest 33's hoist and mount height, cutting mechanism can carry out annular cutting along presetting the cutting point position, two sets of pneumatic cylinders 5 are along annular tool rest 3's axial staggered distribution on annular tool rest 3's outer periphery wall, a plurality of pneumatic cylinders 5 form a set of promptly, and pneumatic cylinder 5 in the same set is located same circumference orbit, and the staggered distribution of two sets of pneumatic cylinders 5 of slope setting, can form the position of cutting into of a plurality of not equidirectionals on the outer wall of pile head 1, the staggered distribution here can also understand: the position of one group of hydraulic cylinders 5 is translated for a certain distance along the axial direction of the annular tool rest 3 and then rotates in situ, namely the position of the hydraulic cylinders can be coincided with the position of the other group of hydraulic cylinders 5, the distribution of the plurality of cutting mechanisms corresponds to the distribution of the shearing tool bit 20, namely the plurality of cutting mechanisms are also divided into two groups, and two groups of cutting seams 10 can be formed on the outer wall of the pile head 1 when the pile is used; during specific operation, firstly, the driving motor 15 is started, the driving gear 9 drives the toothed belt 4 to perform circular motion on the outer wall of the annular tool rest 3, the cutting mechanisms move towards the direction close to the pile head 1 along the radial direction of the annular tool rest 3 until the cutting mechanisms are contacted with the outer wall of the pile head 1, at the moment, the cutting parts of the two groups of cutting mechanisms penetrate through the cutting holes 18 and continuously move towards the direction close to the outer wall of the pile head 1, and meanwhile, the circular motion can be performed around the circumferential direction of the annular tool rest 3, so that the circular cutting of the pile head 1 is realized, and two groups of cutting seams 10 are directly formed on the outer wall of the pile head 1; it should be further noted that the formation of the two sets of cutting seams 10 reduces the overall connection strength of the pile head 1, and is particularly evident at the shear points it sets; simultaneously after two sets of pneumatic cylinders 5 that set up in a staggered manner start, a plurality of shearing tool bits 20 can be followed a plurality of angles and sheared pile head 1, because pile head 1's bulk joint strength reduces, shearing tool bit 20 cuts into near cutting seam 10, the concrete part near shearing tool bit 20 point of cut-in moves towards cutting seam 10 direction after the atress, two sets of shearing tool bits 20 can form two shear grooves on pile head 1 fast, and cut into along with the continuation of shearing tool bit 20, pile head 1 can be sheared fracture in the short time, in order to conveniently to operate remaining cutting point position.
In this embodiment, the cutting mechanism includes a cylinder 7 and a servo motor 14, the servo motor 14 is disposed in the cavity, a cutting blade 17 is disposed on an output end of the servo motor 14, the cylinder 7 is horizontally fixed on an upper end surface of the toothed belt 4, an arc-shaped guide hole is formed in an outer circumferential wall of the annular tool holder 3, and an output end of the cylinder 7 is connected to the servo motor 14 through the guide hole. The cylinder 7 is fixed on the upper end surface of the toothed belt 4, and the output end of the cylinder 7 is connected with the outer wall of the servo motor 14, when the cutting seam 10 is formed, the movement of the two groups of cutting pieces 17 comprises two linear movements along the axial direction of the output end of the cylinder 7 and a circumferential movement along the circumferential direction of the annular tool rest 3, wherein the limit positions of the circumferential movement track are two ends of a guide hole, two groups of cutting seams 10 are formed on the outer wall of the pile head 1, namely after the cylinder 7, the servo motor 14 and the driving motor 15 are started, the plurality of cutting pieces 17 start to perform circumferential cutting along the outer circumferential wall of the pile head 1, at the moment, the steel bars in the pile head 1 are directly and completely or partially cut by the cutting pieces 17, because the circular angle corresponding to the arc where the transmission cavity 6 is located is less than 90 degrees, and the arc length corresponding to the cutting hole 18 is also less than the circumference of the inner circumference of the annular tool rest 3, namely, the movement stroke of a single cutting piece 17 is limited, when the servo motor 14 moves to the limit position, the air cylinder 7, the servo motor 14 and the driving motor 15 all stop working, and the hydraulic cylinders 5 which are obliquely arranged are started, so that the shearing tool bit 20 starts to obliquely propel the pile head 1 along the axis direction, compared with the forward chiseling, the resistance borne by the shearing tool bit 20 is smaller during oblique cutting, the power requirement output by the hydraulic cylinders 5 is lower, namely, the pile head 1 can be rapidly broken at the cutting point position by utilizing the oblique cutting of the two sets of hydraulic cylinders 5.
It should be further noted that the cutting portions formed by the two sets of cutting blades 20 are respectively located at the upper end and the lower end of the two sets of cutting slits 10, and due to the formation of the two sets of cutting slits 10, the connection strength of the whole pile head 1 is reduced, and particularly, the connection strength is more obvious at the set cutting point; simultaneously after two sets of pneumatic cylinders 5 that set up in a staggered manner start, a plurality of shearing tool bits 20 can be followed a plurality of angles and sheared pile head 1, because pile head 1's bulk joint strength reduces, shearing tool bit 20 cuts into near cutting seam 10, the concrete part near shearing tool bit 20 point of cut-in moves towards cutting seam 10 direction after the atress, the concrete part near the point of cut-in possesses certain displacement space promptly, two sets of shearing tool bits 20 can form two shear grooves on pile head 1 fast, and cut into along with cutting tool bit 20's continuation, pile head 1 can be sheared fracture in the short time, in order to conveniently to operate remaining cutting point. And the concrete part that is located between two cutting slits 10 is broken off very easily after receiving the shearing extrusion of two sets of shearing tool bits 20, and the concrete part that is located more than the cutting point position then can be by the centre gripping in annular knife rest 3, through the support of shearing tool bit 20 and the spacing back of annular knife rest 3, through hoist and mount, can be fast with the pile head 1 part that has accomplished the shearing remove to other regions.
Wherein, because two annular cingulums 4 parcel settings on annular knife rest 3 outer walls, the removal displacement volume of single cutting piece 17 is one-sixth or one-eighth of 1 outer wall circumference girth of pile head, the reinforcing bar quantity that single cutting piece 17 need cut is at 3 ~ 5 for its cutting efficiency can be continuously guaranteed at a plurality of cutting point positions to cutting piece 17, and accomplish after the cutting at the same group and the clearance between two adjacent cutting joints 10 generally only surplus concrete, reinforcing bar in the pile head 1 is then cut off by a plurality of cutting pieces 17 in proper order.
In this embodiment, the hydraulic cylinder 5 is arranged obliquely, and an angle α formed between an axis of an output end of the hydraulic cylinder 5 and an axis of the annular tool rest 3 is 35 ° to 65 °, so that a plurality of contact points are provided between the annular tool rest 3 and the pile head 1 within a certain height range, thereby ensuring the cutting depth of the shearing tool bit 20, avoiding the phenomenon that the shearing tool bit 20 slips from the outer wall of the pile head 1 in the initial contact stage, and greatly reducing the possibility that the transmission cavity 6 swings on the pile head 1. It should be noted that, on the premise that two groups of cutting seams 10 are already formed, the inclined cutting blade 20 can peel off the concrete block near the cutting seams 10 during the initial cutting, so as to form a cutting groove quickly, and as the cutting blade 20 continues to cut, the concrete part near the center line of the pile head 1 automatically breaks under the pushing and extruding action of the plurality of cutting blades 20 in the same group.
Example 2
Referring to fig. 1 and 2, in this embodiment, on the basis of embodiment 1, a baffle 21 is provided at an output end of each hydraulic cylinder 5, and a compression spring is sleeved on an outer wall of the shearing head 20 and is disposed between the baffle 21 and the guide cylinder 22. When the shearing tool bit 20 is obliquely cut, the hydraulic cylinder 5 and the shearing tool bit 20 can both receive the influence of a large reaction force, so that a compression spring is arranged between the baffle plate 21 and the guide cylinder 22, the reaction force generated when the pile head 1 is sheared can be eliminated, and the overall damage probability of the device is reduced.
A plurality of bottom plates 12 are arranged inside the annular tool rest 3, a sliding groove for a servo motor 14 to perform linear reciprocating motion is formed in the upper surface of each bottom plate 12, a sliding rail 11 is arranged on the lower surface of each bottom plate 12, a T-shaped guide groove is formed in the inner wall of the bottom of the annular tool rest 3, a guide block matched with the guide groove is arranged at the bottom of each sliding rail 11, a plurality of limiting holes which are arc-shaped and correspond to the transmission cavities 6 are formed in the outer circumferential wall of the annular tool rest 3 along the circumferential direction of the annular tool rest, and the arc length of each limiting hole is smaller than the arc length of the transmission cavity 6; the inner circumferential wall of the toothed belt 4 is provided with a connecting rod 8, the connecting rod 8 movably penetrates through the limiting hole and then is connected with the side wall of the bottom plate 12, and a space is reserved among the bottom plates 12. Servo motor 14 can be with step circular motion and linear motion at whole shearing process, and can realize the cutting to pile head 1 in two kinds of motion processes, to this, this technical scheme sets up a plurality of bottom plates 12 in annular knife rest 3, bottom plate 12 passes through connecting rod 8 and 4 inner wall connections of cingulum, and the spout can provide the direction for servo motor 14's linear motion, and in the circumferential direction, servo motor 14, bottom plate 12, cingulum 4 and cylinder 7 become a whole temporarily, and the cooperation is realized through slider and guide way to bottom plate 12 lower extreme, in order to ensure the stability of cutting piece 17 when the cutting. Preferably, the lifting lug 2 arranged on the upper end face of the annular tool rest 3 can facilitate quick hoisting or dismounting of the starting equipment.
The annular tool rest 3 in this embodiment can also be divided into two parts, that is, the annular tool rest 3 is formed by splicing two semicircular cavities, wherein two opposite end faces of the two semicircular cavities are hinged to each other, so that the annular structure formed by the annular tool rest 3 can be opened, and the other two opposite end faces of the two semicircular cavities are fastened to each other, so that the annular tool rest 3 does not need to be lifted by a crane when processing the bottom section of the pile head 1, and after the annular tool rest is sleeved on the outer wall of the pile head 1, the annular tool rest is directly connected through a fastening piece, and the shearing processing of the bottom section of the pile head 1 can be realized.
Example 3
As shown in fig. 1 and fig. 2, in this embodiment, based on embodiment 1, an arc-shaped pushing plate 13 is fixed on an outer wall of a servo motor 14, so that a pushing force generated at an output end of an air cylinder 7 is uniformly distributed on the servo motor 14, and damage caused by a pause of a cutting blade 17 during cutting is avoided.
Preferably, the partition plate 19 is provided to horizontally divide the inside of the annular blade holder 3 into two parts, so that the entry of dust, chips, and the like generated during cutting or shearing into the transmission cavity 6 can be effectively reduced.
Preferably, the output end of the air cylinder 7 pushes the servo motor 14 to move towards the direction close to or away from the pile head 1, and when the servo motor 14 moves to the extreme position, the rubber ridge 16 is arranged to prevent the servo motor 14 from directly generating hard collision with the inner wall of the transmission cavity 6.
Preferably, the annular knife rest 3 in this embodiment may be formed by two knife rests whose end surfaces are hinged to each other and are semicircular, and the movable ends of the two knife rests are respectively provided with a clamping piece 23 and a clamping groove, and the clamping piece 23 is matched with the clamping groove, so that the two knife rests can be connected and fixed; this kind of annular knife rest is applicable to the lower cutting process of pile head height, and annular knife rest 3 need not hoisting equipment hoist and mount promptly, directly can normal use by the manual work subaerial installation dismantlement.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The utility model provides a building abandonment foundation pile is with multidirectional linkage hydraulic cutting mechanism, includes annular knife rest (3), is equipped with cavity, its characterized in that in annular knife rest (3): two groups of hydraulic cylinders (5) are arranged on the outer circumferential wall of the annular tool rest (3) at intervals along the axial direction of the annular tool rest (3), the two groups of hydraulic cylinders (5) are arranged in a staggered manner, the output end of each hydraulic cylinder (5) is provided with a shearing tool bit (20), the hydraulic cylinders (5) are arranged in an inclined manner, an acute angle alpha is formed between the axis of the output end of each hydraulic cylinder (5) and the axis of the annular tool rest (3), a plurality of cutting mechanisms capable of primarily cutting the pile head (1) are arranged in the annular tool rest (3), the inner wall of the annular tool rest (3) is provided with a cutting hole (18) for a cutting part of each cutting mechanism to pass through, the outer circumferential wall of the annular tool rest (3) is provided with a transmission cavity (6) corresponding to the hydraulic cylinders (5), a driving motor (15) is arranged in the transmission cavity (6), and two annular toothed belts (4) are rotatably arranged on the outer circumferential wall of the annular tool rest (3) along the circumferential direction, the toothed belt (4) sequentially and movably penetrates through the plurality of transmission cavities (6), part of the cutting mechanism is connected with the upper end face of the toothed belt (4), and a driving gear (9) matched with the toothed belt (4) is arranged at the output end of the driving motor (15);
during the use, a plurality of cutting mechanism carry out the hoop cutting along the circumference of pile head (1) outer wall, until forming two sets of interval distribution's cutting seam (10) at pile head (1) outer wall, then two sets of pneumatic cylinders (5) drive and cut tool bit (20) and begin respectively to cut pile head (1) along the upper end of two sets of cutting seams (10), lower extreme.
2. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 1, wherein: cutting mechanism includes cylinder (7), servo motor (14), and servo motor (14) set up in the cavity, is equipped with cutting piece (17) on the output of servo motor (14), and cylinder (7) level is fixed at the up end of cingulum (4), and it has curved guiding hole to open on the outer periphery wall of annular knife rest (3), and the output of cylinder (7) is connected with servo motor (14) after passing through the guiding hole.
3. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 1, wherein: a plurality of lifting lugs (2) are arranged on the upper end surface of the annular tool rest (3).
4. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 1, wherein: the inner circumferential wall of the annular tool rest (3) is provided with a plurality of guide cylinders (22) matched with the hydraulic cylinders (5), the shearing tool bit (20) sequentially and movably penetrates through the annular tool rest (3) and then is arranged in the guide cylinders (22), the output end of each hydraulic cylinder (5) is provided with a baffle (21), the outer wall of the shearing tool bit (20) is sleeved with a compression spring, and the compression spring is arranged between the baffle (21) and the guide cylinders (22).
5. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 1, wherein: an acute angle alpha is formed between the axis of the output end of the hydraulic cylinder (5) and the axis of the annular tool rest (3), and the alpha is more than or equal to 35 degrees and less than or equal to 65 degrees.
6. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 1, wherein: a plurality of bottom plates (12) are arranged inside the annular tool rest (3), sliding grooves for a servo motor (14) to perform linear reciprocating motion are formed in the upper surface of each bottom plate (12), sliding rails (11) are arranged on the lower surface of each bottom plate (12), T-shaped guide grooves are formed in the inner wall of the bottom of the annular tool rest (3), guide blocks matched with the guide grooves are arranged at the bottoms of the sliding rails (11), a plurality of limiting holes which are arc-shaped and correspond to the transmission cavity (6) are formed in the outer circumferential wall of the annular tool rest (3) along the circumferential direction of the annular tool rest, and the arc length of each limiting hole is smaller than that of the transmission cavity (6); the inner circumferential wall of the toothed belt (4) is provided with a connecting rod (8), the connecting rod (8) movably penetrates through the limiting hole and then is connected with the side wall of the bottom plate (12), and a space is reserved among the bottom plates (12).
7. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 2, wherein: the outer circumferential wall of the servo motor (14) is provided with a propelling plate (13) matched with the servo motor, and the output end of the air cylinder (7) is connected with the propelling plate (13).
8. The multidirectional linkage hydraulic cutting mechanism for the abandoned foundation pile of the building according to any one of claims 1 to 7, characterized in that: an annular partition plate (19) is arranged inside the annular tool rest (3), and the annular tool rest (3) is divided into two mutually independent areas by the annular partition plate (19).
9. The multidirectional linkage hydraulic cutting mechanism for the construction waste foundation pile as claimed in claim 8, wherein: arc-shaped rubber fillets (16) are arranged on the inner walls of the two sides of each transmission cavity (6), and a servo motor (14) is arranged between the two rubber fillets (16).
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| CN202111250926.2A CN113981974B (en) | 2021-10-26 | 2021-10-26 | Multidirectional linkage hydraulic cutting mechanism for building waste foundation piles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111250926.2A CN113981974B (en) | 2021-10-26 | 2021-10-26 | Multidirectional linkage hydraulic cutting mechanism for building waste foundation piles |
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| CN113981974B CN113981974B (en) | 2022-05-13 |
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| CN110565641A (en) * | 2019-09-19 | 2019-12-13 | 王彬力 | equipment and method for cutting off pile head of bridge pile foundation |
| WO2020016588A1 (en) * | 2018-07-18 | 2020-01-23 | Creative Crushers Limited | A device, arrangement and method for cutting piles |
| CN111074892A (en) * | 2019-12-30 | 2020-04-28 | 中交第二公路工程局有限公司 | Circular cutting device and circular cutting method for pile head |
| CN211713964U (en) * | 2020-02-18 | 2020-10-20 | 李士通 | Cutting device for pile head convenient to highway cuts |
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2021
- 2021-10-26 CN CN202111250926.2A patent/CN113981974B/en active Active
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| CN2794784Y (en) * | 2005-04-26 | 2006-07-12 | 霍洪彪 | Pile head cutter |
| CN106836222A (en) * | 2017-02-14 | 2017-06-13 | 王本勋 | A kind of high ferro cushion cap pile crown girdling machine |
| WO2020016588A1 (en) * | 2018-07-18 | 2020-01-23 | Creative Crushers Limited | A device, arrangement and method for cutting piles |
| CN109295975A (en) * | 2018-10-28 | 2019-02-01 | 中铁十二局集团有限公司 | A kind of double blade circumferential direction cutter device abolished for pile crown |
| CN110565641A (en) * | 2019-09-19 | 2019-12-13 | 王彬力 | equipment and method for cutting off pile head of bridge pile foundation |
| CN111074892A (en) * | 2019-12-30 | 2020-04-28 | 中交第二公路工程局有限公司 | Circular cutting device and circular cutting method for pile head |
| CN211713964U (en) * | 2020-02-18 | 2020-10-20 | 李士通 | Cutting device for pile head convenient to highway cuts |
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| CN113981974B (en) | 2022-05-13 |
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