CN116497884A - Multi-angle pile foundation anti-pulling performance detection device and detection method - Google Patents
Multi-angle pile foundation anti-pulling performance detection device and detection method Download PDFInfo
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- CN116497884A CN116497884A CN202310490131.1A CN202310490131A CN116497884A CN 116497884 A CN116497884 A CN 116497884A CN 202310490131 A CN202310490131 A CN 202310490131A CN 116497884 A CN116497884 A CN 116497884A
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- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
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- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention provides a multi-angle pile foundation anti-pulling performance detection device and a detection method, wherein the detection device comprises a support frame, a support seat, a first plate body, a lifting assembly, a first stepping motor, a rotating plate, a sliding seat, an adjusting mechanism, an inner sleeve, a connecting assembly, an outer sleeve and a pull rod, wherein the adjusting mechanism comprises a second stepping motor and a screw rod; according to the invention, the leveling assembly is arranged, so that the leveling of the support frame is realized, and the detection accuracy is improved.
Description
Technical Field
The invention belongs to the technical field of pile foundation detection, and particularly relates to a multi-angle pile foundation anti-pulling performance detection device and a detection method.
Background
The pile foundation is a deep foundation which is formed by connecting the tops of a plurality of piles into a whole through a bearing platform and bears dynamic and static loads together, and the piles are vertical or inclined foundation members arranged in the soil and act to penetrate through a soft high-compressibility soil layer or water so as to transfer the load borne by the piles to a harder, denser or less-compressibility foundation bearing layer;
according to the detection of the required pulling resistance of the pile foundation, through retrieval, chinese patent CN111549831B discloses a multi-angle pile foundation pulling resistance detection device, which has the technical scheme that a transverse frame is rotatably arranged between two brackets, a driving shaft is fixedly arranged on the end wall of the transverse frame and positioned in the center of the transverse frame, the driving shaft penetrates through one of the brackets and is fixedly connected with a turbine, a worm meshed with the turbine is rotatably arranged on the outer side wall of the bracket, and the length direction of the worm is arranged along the width direction of the bracket, so that the pulling resistance of the pile foundation is tested at a plurality of angles, and the advantage of multiple construction environments is met;
in the above patent, the worm is driven by the driving rod to rotate, and then the turbine is driven to rotate, so that the transverse frame rotates along the axis direction of the transverse frame between the two brackets, the angle between the jack and the clamping device and the ground is changed, and although the angle can be adjusted, the stress of the pile foundation can be in different directions on different planes, and the angle adjustment can not be performed in the circumferential direction only by adjusting the angle in one rotation plane.
Disclosure of Invention
The invention provides a multi-angle pile foundation anti-pulling performance detection device, and aims to solve the problems.
The technical scheme adopted by the invention is as follows: the utility model provides a multi-angle pile foundation resistance to plucking performance detection device, includes the support frame and connects in the supporting seat of support frame both sides bottom, still includes:
the lifting assembly is arranged on the support frame and used for driving the first plate to lift;
the first stepping motor is fixedly arranged on the first plate body, an output shaft of the first stepping motor faces downwards and is fixedly connected with the rotating plate, and a sliding seat is slidably arranged on the lower surface of the rotating plate;
the adjusting mechanism is arranged on the rotating plate and used for driving the sliding seat to move so as to adjust the position of the sliding seat on the rotating plate;
the inner sleeve is sleeved outside the pile foundation, and a connecting assembly used for being detachably connected with the pile foundation is arranged on the inner sleeve;
the outer sleeve is connected to the outer portion of the inner sleeve in a rotating mode, two pull rods are hinged to the outer side wall of the outer sleeve in an opposite mode, and the two pull rods are hinged to the sliding seat.
Preferably, the upper surface of the rotating plate is integrally provided with a T-shaped block, and the first plate body is provided with an annular T-shaped groove matched with the T-shaped block.
Preferably, the adjusting mechanism comprises a second stepping motor and screw rods, the screw rods in threaded connection with the two screw rods are respectively arranged at two ends of the sliding seat in a penetrating mode, the two screw rods are arranged in parallel and are in transmission connection through a transmission piece, the second stepping motor is fixed on the rotating plate, and an output shaft of the second stepping motor is connected with any screw rod in a driving mode.
Preferably, the lifting assembly comprises a hydraulic cylinder, a second plate body and a connecting column, a horizontal mounting plate is fixed on the upper portion of the supporting frame, a telescopic cylinder which is vertically arranged is fixed on the mounting plate, the telescopic end of the telescopic cylinder is fixedly provided with the second plate body, and the second plate body is connected with the first plate body through a plurality of vertical connecting columns.
Preferably, a first pressure sensor is arranged between the second plate body and the telescopic end of the telescopic cylinder and used for measuring acting force of the telescopic end of the telescopic cylinder to the second plate body, and the first pressure sensor is electrically connected with the display.
Preferably, the connection assembly includes:
the connecting plates are circumferentially arranged in the inner sleeve at intervals, and the shape of each connecting plate is matched with the shape of the outer side wall of the pile foundation;
and the plurality of parallel first connecting rods are connected between the connecting plate and the inner sleeve and are hinged with the connecting rods.
Preferably, the first connecting rod is hinged with a pawl, the inner sleeve is provided with a ratchet wheel which can be meshed with the pawl, a torsion spring is connected between the pawl and the first connecting rod, the acting force of the torsion spring on the pawl is used for enabling the pawl to be meshed with the ratchet wheel in a natural state, the ratchet wheel is fixed on the mounting ring, and the mounting ring is rotationally connected with the inner sleeve.
Preferably, further comprising a leveling assembly, the leveling assembly comprising:
the first threaded rod is connected between each supporting seat and the supporting frame, and is rotationally connected with the supporting seat and in threaded connection with the supporting frame;
the third stepping motor is fixed in each supporting seat and is used for driving the first threaded rod to rotate;
one end of the swing rod is hinged with the middle part of the support frame, and the other end of the swing rod is fixedly connected with a weight piece;
the second connecting rod is hinged to the two side walls of the counterweight, one end of the second connecting rod, which is far away from the counterweight, is hinged with the abutting block, and the abutting block is in sliding connection with the lower surface of the mounting plate;
the second pressure sensor is fixedly arranged on the lower surface of the mounting plate, one side, away from the second connecting rod, of each abutting block is provided with a second pressure sensor respectively, each second pressure sensor is in abutting fit with the corresponding abutting block, each second pressure sensor is electrically connected with the controller, and the controller is electrically connected with the third stepping motor in each supporting seat.
Preferably, the output shaft of the third stepping motor is fixed with a second threaded rod, the second threaded rod is horizontally arranged and is rotationally connected with the supporting seat, the second threaded rod is fixed with a driving bevel gear, the first threaded rod is fixed with a driven bevel gear meshed with the driving bevel gear, the bottom of the supporting seat is horizontally movably provided with a supporting plate, and an auxiliary plate is fixed on the supporting plate and is in threaded connection with the second threaded rod.
The invention also provides a detection method based on the multi-angle pile foundation anti-pulling performance detection device, which comprises the following steps:
moving the device to the pile foundation, sleeving the inner sleeve on the pile foundation, and connecting the inner sleeve with the pile foundation through the connecting component;
the lifting assembly drives the first plate body to ascend, the first plate body drives the rotating plate to ascend, the rotating plate drives the sliding seat to ascend, the sliding seat pulls the outer sleeve through the pull rod, and then the inner sleeve and the connecting assembly generate pulling force on the pile foundation;
the position of the sliding seat is adjusted through the adjusting mechanism, the angle of the pull rod is adjusted, and then the direction of pulling force on the pile foundation is adjusted;
the first stepping motor drives the rotating plate to rotate, the rotating plate drives the sliding seat to rotate, the sliding seat drives the pull rod to circumferentially rotate, and the direction of the pull rod is further adjusted.
Compared with the prior art, the embodiment of the application has the following main beneficial effects:
according to the multi-angle pile foundation anti-pulling performance detection device, the supporting frame, the supporting seat, the first plate body, the lifting assembly, the first stepping motor, the rotating plate, the sliding seat, the adjusting mechanism, the inner sleeve, the connecting assembly, the outer sleeve and the pull rod are arranged, the inner sleeve is sleeved on a pile foundation, the inner sleeve is connected with the pile foundation through the connecting assembly, the lifting assembly drives the first plate body to lift, the first plate body drives the rotating plate to lift, the rotating plate drives the sliding seat to lift, the sliding seat pulls the outer sleeve through the pull rod, then the inner sleeve and the connecting assembly pull force to the pile foundation, the pulling force direction is along the length direction of the pull rod, the position of the sliding seat is adjusted through the adjusting mechanism, so that the angle of the pull rod is adjusted, the direction of the pulling force to the pile foundation is adjusted, the rotating plate is driven to rotate through the first stepping motor, the sliding seat is driven to rotate, the pull rod is driven by the sliding seat to circumferentially rotate, the pull rod is further adjusted, and more detection requirements are met.
According to the multi-angle pile foundation anti-pulling performance detection device, the connection assembly comprises the connection plate, the plurality of first connecting rods and the connection rod, the connection plate is propped against the outer side wall of the pile foundation, one end of the first connecting rod, which is close to the pile foundation, is higher than the other end of the first connecting rod, when the outer sleeve is pulled upwards by the pull rod, the inner sleeve is driven to upwards by the outer sleeve, the connection plate is propped against the outer side wall of the pile foundation through the first connecting rods, so that the connection is connected with the pile foundation, and in the detection process, if the pulling force of the pull rod to the outer sleeve is larger, the trend that the inner sleeve is driven to upwards move by the outer sleeve is larger, so that the pressure of the connection plate to the pile foundation through the first connecting rod is larger, the connection stability is higher, and the connection with the pile foundation is prevented from being separated;
according to the multi-angle pile foundation anti-pulling performance detection device provided by the invention, the leveling assembly is arranged and comprises the first threaded rod, the third stepping motor, the swinging rod, the second connecting rod, the abutting block and the second pressure sensor, when the support frame is inclined, the swinging rod is kept vertical under the action of the counterweight, the swinging rod and the counterweight deflect towards the inclined side of the support frame, the counterweight pushes the abutting block to move towards the second pressure sensor on the inclined side through the second connecting rod on the inclined side, so that the value of the second pressure sensor on the inclined side is larger than that of the second pressure sensor on the other side, the controller controls the third stepping motor on the right side to start, the third stepping motor on the right side drives the first threaded rod to rotate, the inclined side of the support frame rises until the verticality of the two second pressure sensors is equal, and the controller controls the third stepping motor in the right side support frame to stop, so that the support frame is leveled, and the detection accuracy is improved.
Drawings
FIG. 1 is a schematic structural diagram of a multi-angle pile foundation anti-pulling performance detection device provided by the embodiment 1 of the invention;
FIG. 2 is a schematic structural diagram of an adjusting mechanism in the multi-angle pile foundation anti-pulling performance detecting device provided by the embodiment 1 of the invention;
FIG. 3 is a schematic structural view of the outer sleeve, inner sleeve and connecting assembly in the multi-angle pile foundation anti-pulling performance detecting device provided by embodiment 1 of the invention;
fig. 4 is an enlarged view at a in fig. 3;
FIG. 5 is a schematic top view of a connection assembly in the multi-angle pile foundation anti-pulling performance detection device according to embodiment 1 of the present invention;
fig. 6 is a schematic structural diagram of a multi-angle pile foundation anti-pulling performance detection device provided by embodiment 2 of the invention.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Example 1
The embodiment of the invention provides a multi-angle pile foundation anti-pulling performance detection device, which is shown in fig. 1-5, and comprises a support frame 2 and support seats 1 connected to the bottoms of two sides of the support frame 2, wherein the support frame 2 is preferably in a door shape, the support seats 1 and the support frame 2 can be fixed through bolts, and the multi-angle pile foundation anti-pulling performance detection device further comprises:
the first plate body 8 is arranged in the support frame 2, and a lifting assembly for driving the first plate body 8 to lift is arranged on the support frame 2;
the first stepping motor 13 is fixedly arranged on the first plate body 8, and can be fixed through bolts, an output shaft of the first stepping motor 13 faces downwards and is fixedly connected with the rotating plate 7, preferably, a T-shaped block is integrally arranged on the upper surface of the rotating plate 7, an annular T groove matched with the T-shaped block is formed in the first plate body 8, the connection stability of the first plate body 8 and the rotating plate 7 is improved, a sliding seat 15 is slidably arranged on the lower surface of the rotating plate 7, a sliding block can be integrally arranged on the sliding seat 15, and a sliding groove which is slidably connected with the sliding block is formed in the lower surface of the rotating plate 7;
the adjusting mechanism is arranged on the rotating plate 7 and is used for driving the sliding seat 15 to move to adjust the position of the sliding seat on the rotating plate 7, in the embodiment, the adjusting mechanism comprises a second stepping motor 6 and a screw rod 14, the screw rods 14 which are in threaded connection with the sliding seat 15 are respectively arranged at two ends of the sliding seat 15 in a penetrating way, the two screw rods 14 are arranged in parallel and are in transmission connection through a transmission piece 16, and the transmission piece 16 can be in a belt transmission mode or a chain transmission mode and the like without excessive limitation; the second stepper motor 6 is fixed on the rotating plate 7 through a bolt, an output shaft of the second stepper motor 6 is in driving connection with any screw rod 14, preferably, the output shaft of the second stepper motor 6 is fixedly connected with one end of the screw rod 14 through a coupler, the second stepper motor 6 is started, the second stepper motor 6 drives the screw rod 14 to rotate, and the screw rod 14 drives the sliding seat 15 to move;
the inner sleeve 4 is sleeved outside the pile foundation, and a connecting component used for being detachably connected with the pile foundation is arranged on the inner sleeve 4;
the outer sleeve 3 is rotatably connected to the outside of the inner sleeve 4, an annular bulge can be integrally arranged on the outer side wall of the inner sleeve 4, an annular groove matched with the annular bulge is arranged on the inner side wall of the outer sleeve 3, so that the outer sleeve 3 and the inner sleeve 4 can rotate relatively, two pull rods 5 are hinged to the outer side wall of the outer sleeve 3 relatively, the two pull rods 5 are hinged to the sliding seat 15, and an angle gauge is fixed on the sliding seat 15 and can measure the angle of the pull rods 5;
when using, remove the device to pile foundation department, then with inner skleeve 4 cover on the pile foundation, be connected inner skleeve 4 and pile foundation through coupling assembling, then drive first plate body 8 through lifting unit and rise, first plate body 8 drives rotor plate 7 and rises, rotor plate 7 drives slide 15 and rises, slide 15 pulls outer sleeve 3 through pull rod 5, then produce pulling force to the pile foundation through inner skleeve 4, coupling assembling, pulling force direction is along pull rod 5 length direction, accessible adjustment mechanism adjusts the position of slide 15, thereby adjust the angle of pull rod 5, and then adjust the direction to pile foundation pulling force, still accessible first step motor 13 drives rotor plate 7 and rotates, rotor plate 7 drives slide 15 and rotates, slide 15 drives pull rod 5 circumference and rotates, further adjust the direction of pull rod 5, satisfy more detection demands.
The lifting assembly comprises a hydraulic cylinder 12, a second plate body 11 and a connecting column 9, wherein a horizontal mounting plate 10 is fixed on the upper portion of a supporting frame 2, welding fixation can be adopted, a vertically arranged telescopic cylinder is fixed on the mounting plate 10, the telescopic cylinder can be fixed through bolts, the second plate body 11 is fixed at the telescopic end of the telescopic cylinder through the bolts, a first pressure sensor 35 is arranged between the telescopic end of the second plate body 11 and the telescopic end of the telescopic cylinder and used for measuring acting force of the telescopic end of the telescopic cylinder on the second plate body 11, the first pressure sensor 35 is electrically connected with a display, the display can be fixed on the supporting frame 2, the second plate body 11 is connected with the first plate body 8 through a plurality of vertical connecting columns 9, the connecting column 9 can be respectively fixed with the first plate body 8 and the second plate body 11 through welding, guide holes for the connecting column 9 to penetrate through are formed in the top of the supporting frame 2 and the mounting plate 10, the telescopic end of the hydraulic cylinder 12 stretches or shortens, the second plate body 11 is driven to lift through the telescopic end of the hydraulic cylinder 12, and the second plate body 11 is driven to lift through the connecting column 9.
In this embodiment, the connection assembly includes:
a plurality of connecting plates 17 which are circumferentially arranged in the inner sleeve 4 at intervals, wherein the shape of the connecting plates 17 is matched with the shape of the outer side wall of the pile foundation, and anti-slip teeth are preferably integrally arranged on the inner side wall of the connecting plates 17;
a plurality of parallel first links 18 connected between the connecting plate 17 and the inner sleeve 4, the plurality of parallel first links 18 being each hinged to a connecting rod 21;
during operation, the connecting plate 17 is propped against the outer side wall of the pile foundation, one end of the first connecting rod 18, which is close to the pile foundation, is higher than the other end, when the pull rod 5 pulls the outer sleeve 3 upwards, the outer sleeve 3 drives the inner sleeve 4 upwards, the inner sleeve 4 enables the connecting plate 17 to prop against the outer side wall of the pile foundation through the first connecting rod 18, so that the connecting plate is connected with the pile foundation, in the detection process, if the pull rod 5 pulls the outer sleeve 3 more, the trend that the outer sleeve 3 drives the inner sleeve 4 to move upwards is more, the inner sleeve 4 enables the pressure of the connecting plate 17 to the pile foundation to be more through the first connecting rod 18, so that the connection stability is higher, the separation from the pile foundation is prevented, and the detection work is affected.
Further, the first connecting rod 18 is hinged with the pawl 19, the inner sleeve 4 is provided with the ratchet 20 which can be meshed with the pawl 19, a torsion spring is connected between the pawl 19 and the first connecting rod 18, the acting force of the torsion spring to the pawl 19 is used for enabling the pawl 19 to be meshed with the ratchet 20 in a natural state, the ratchet 20 can be fixed on the mounting ring 22 through welding, the mounting ring 22 is rotationally connected with the inner sleeve 4, and when the detection is carried out, the pawl 19 is meshed with the ratchet 20, the first connecting rod 18 can be limited to rotate, so that the connecting plate 17 is limited to leave the outer side wall of a pile foundation, after the detection work is completed, the pawl 19 can be rotated and separated from the pawl 19 in a dislocation mode through the direct mounting ring 22, so that the connecting plate 17 and the first connecting rod 18 can move, and the connecting plate 17 is convenient to separate from the pile foundation.
Example 2
In the specific use of device, can receive the influence of whether leveling of the bearing surface near the pile foundation, in the testing process, the counter-force supporting seat 1 of pile foundation both sides that awaits measuring usually can take place the subsidence of certain degree after the atress, the subsidence height of pile foundation both sides counter-force supporting seat 1 that awaits measuring probably differs because of the soil humidity of pile foundation both sides foundation that awaits measuring is different, thereby lead to support frame 2 to take place the slope, and then lead to the atress direction of pile foundation to await measuring to take place the skew, influence the accuracy of test data, this embodiment is on the basis of embodiment 1, as shown in fig. 6, still include leveling subassembly, leveling subassembly includes:
a first threaded rod 28 connected between each support seat 1 and the support frame 2, wherein the first threaded rod 28 is rotatably connected with the support seat 1 and is in threaded connection with the support frame 2;
a third stepping motor 32 fixed in each supporting seat 1, which can be fixed by bolts and is used for driving the first threaded rod 28 to rotate;
one end of the swing rod 23 is hinged with the middle part of the support frame 2, the other end of the swing rod 23 is fixedly connected with a weight piece 24, and the weight piece 24 is preferably spherical;
the second connecting rods 27 are hinged to the two side walls of the weight piece 24, one ends of the second connecting rods 27, which are far away from the weight piece 24, are hinged with the abutting blocks 25, and the abutting blocks 25 are in sliding connection with the lower surface of the mounting plate 10;
the second pressure sensors 26 are fixedly arranged on the lower surface of the mounting plate 10, one side, far away from the second connecting rod 27, of each of the two abutting blocks 25 is provided with one second pressure sensor 26, the second pressure sensors 26 can be fixedly arranged through screws, the second pressure sensors 26 are in abutting fit with the abutting blocks 25, the two second pressure sensors 26 are electrically connected with a controller, the controller is electrically connected with the third stepping motor 32 in the two supporting seats 1, and the controller can be a singlechip;
when the support frame 2 is inclined, the swing rod 23 is kept vertical under the action of the weight piece 24, the swing rod 23 and the weight piece 24 are equivalent to deflecting towards the inclined side of the support frame 2, if the support frame 2 is inclined rightwards, the weight piece 24 pushes the abutting block 25 to move towards the second pressure sensor 26 on the right side through the second connecting rod 27 on the right side, so that the value of the second pressure sensor 26 on the right side is larger than that of the second pressure sensor 26 on the left side, the controller controls the third stepping motor 32 in the right support seat 1 to start, the third stepping motor 32 on the right side drives the first threaded rod 28 to rotate, the right side of the support frame 2 rises until the verticality of the two second pressure sensors 26 is equal, and the controller controls the third stepping motor 32 in the right support seat 1 to stop; similarly, if the support frame 2 is inclined leftwards, the weight 24 pushes the supporting block 25 to move towards the second pressure sensor 26 on the left side through the second connecting rod 27 on the left side, so that the numerical value of the second pressure sensor 26 on the left side is larger than that of the second pressure sensor 26 on the right side, the controller controls the third stepping motor 32 in the left side support seat 1 to start, the third stepping motor 32 on the left side drives the first threaded rod 28 to rotate, the left side of the support frame 2 is lifted until the two second pressure sensors 26 are equal vertically, and the controller controls the third stepping motor 32 in the left side support seat 1 to stop, so that leveling is realized;
in a specific implementation, the output shaft of the third stepper motor 32 is fixed with a second threaded rod 30, which can be fixed by a coupling, the second threaded rod 30 is horizontally arranged, the second threaded rod 30 is rotatably connected with the support base 1, the second threaded rod 30 is fixed with a drive bevel gear 33, and the first threaded rod 28 is fixed with a driven bevel gear 29 meshed with the drive bevel gear 33. The third stepping motor 32 drives the second threaded rod 30 to rotate, the second threaded rod 30 drives the drive bevel gear 33 to rotate, and the drive bevel gear 33 drives the first threaded rod 28 to rotate through the driven bevel gear 29;
in this embodiment, the support plate 31 is movably mounted at the bottom of the support seat 1 horizontally, the auxiliary plate 34 is fixed on the support plate 31, the auxiliary plate 34 is in threaded connection with the second threaded rod 30, when the support seat 1 is sunk at the side to incline the support frame 2, the third stepping motor 32 is started, the first threaded rod 28 rotates to drive the support frame 2 to rise, and at the same time, the second threaded rod 30 drives the auxiliary plate 34 to move away from the support seat 1, the auxiliary plate 34 drives the support plate 31 to move towards the outer side of the support seat 1, and the support seat 1 is matched with the support plate 31 to enlarge the whole support area and reduce the continuous sinking of the support seat 1.
In summary, the invention provides a multi-angle pile foundation anti-pulling performance detection device, which has the following working principle:
the device is moved to a pile foundation, then the inner sleeve 4 is sleeved on the pile foundation, the connecting plate 3417 is propped against the outer side wall of the pile foundation, one end of the first connecting rod 18, which is close to the pile foundation, is higher than the other end, when the outer sleeve 3 is pulled upwards by the pull rod 5, the inner sleeve 3 drives the inner sleeve 4 to upwards, the connecting plate 3417 is propped against the outer side wall of the pile foundation through the first connecting rod 18 so as to be connected with the pile foundation, the second stepping motor 6 is started, the second stepping motor 6 drives the screw rod 14 to rotate, the screw rod 14 drives the sliding seat 15 to move, thereby adjusting the angle of the pull rod 5, the angle of the pull rod 5 is measured through the protractor, the rotating plate 7 can be driven to rotate through the first stepping motor 13, the sliding seat 15 is driven to rotate, the pull rod 5 is driven to rotate circumferentially through the hydraulic cylinder 12, the telescopic end of the hydraulic cylinder 12 drives the second plate 11 to be lifted, the second plate 11 is driven to lift through the connecting post 9, the first plate 8 drives the rotating plate 7 to lift, the sliding seat 15 is driven to lift through the pull rod 5, then the outer sleeve 3 is driven by the pull rod 5, the inner sleeve 4 and the connecting plate 3417 is driven to generate a pair along the direction of the pull rod, the length direction is measured, and the tensile force is measured through the tensile force in the direction of the direction 35, and the tensile force is measured in the tensile force is measured.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention. It will be apparent that the described embodiments are merely some, but not all, embodiments of the invention. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the invention.
Claims (10)
1. The utility model provides a multi-angle pile foundation resistance to plucking performance detection device, includes the support frame and connects in the supporting seat of support frame both sides bottom, its characterized in that: further comprises:
the lifting assembly is arranged on the support frame and used for driving the first plate to lift;
the first stepping motor is fixedly arranged on the first plate body, an output shaft of the first stepping motor faces downwards and is fixedly connected with the rotating plate, and a sliding seat is slidably arranged on the lower surface of the rotating plate;
the adjusting mechanism is arranged on the rotating plate and used for driving the sliding seat to move so as to adjust the position of the sliding seat on the rotating plate;
the inner sleeve is sleeved outside the pile foundation, and a connecting assembly used for being detachably connected with the pile foundation is arranged on the inner sleeve;
the outer sleeve is connected to the outer portion of the inner sleeve in a rotating mode, two pull rods are hinged to the outer side wall of the outer sleeve in an opposite mode, and the two pull rods are hinged to the sliding seat.
2. The multi-angle pile foundation anti-pulling performance detection device according to claim 1, wherein: the upper surface integral type of rotor plate is provided with T type piece, offer on the first plate body with T type piece complex annular T groove.
3. The multi-angle pile foundation anti-pulling performance detection device according to claim 1, wherein: the adjusting mechanism comprises a second stepping motor and screw rods, the screw rods in threaded connection with the screw rods are respectively arranged at two ends of the sliding seat in a penetrating mode, the two screw rods are arranged in parallel and are in transmission connection through a transmission piece, the second stepping motor is fixed on the rotating plate, and an output shaft of the second stepping motor is connected with any screw rod in a driving mode.
4. The multi-angle pile foundation anti-pulling performance detection device according to claim 1, wherein: the lifting assembly comprises a hydraulic cylinder, a second plate body and a connecting column, a horizontal mounting plate is fixed on the upper portion of the supporting frame, a telescopic cylinder which is vertically arranged is fixed on the mounting plate, the telescopic end of the telescopic cylinder is fixedly provided with the second plate body, and the second plate body is connected with the first plate body through a plurality of vertical connecting columns.
5. The multi-angle pile foundation anti-pulling performance detection device according to claim 4, wherein: and a first pressure sensor is arranged between the second plate body and the telescopic end of the telescopic cylinder and used for measuring acting force of the telescopic end of the telescopic cylinder to the second plate body, and the first pressure sensor is electrically connected with the display.
6. The multi-angle pile foundation anti-pulling performance detection device according to claim 1, wherein: the connection assembly includes:
the connecting plates are circumferentially arranged in the inner sleeve at intervals, and the shape of each connecting plate is matched with the shape of the outer side wall of the pile foundation;
and the plurality of parallel first connecting rods are connected between the connecting plate and the inner sleeve and are hinged with the connecting rods.
7. The multi-angle pile foundation anti-pulling performance detection device of claim 6, wherein: the ratchet wheel is fixed on the mounting ring, and the mounting ring is rotationally connected with the inner sleeve.
8. The multi-angle pile foundation anti-pulling performance detection device of claim 7, wherein: still include leveling subassembly, leveling subassembly includes:
the first threaded rod is connected between each supporting seat and the supporting frame, and is rotationally connected with the supporting seat and in threaded connection with the supporting frame;
the third stepping motor is fixed in each supporting seat and is used for driving the first threaded rod to rotate;
one end of the swing rod is hinged with the middle part of the support frame, and the other end of the swing rod is fixedly connected with a weight piece;
the second connecting rod is hinged to the two side walls of the counterweight, one end of the second connecting rod, which is far away from the counterweight, is hinged with the abutting block, and the abutting block is in sliding connection with the lower surface of the mounting plate;
the second pressure sensor is fixedly arranged on the lower surface of the mounting plate, one side, away from the second connecting rod, of each abutting block is provided with a second pressure sensor respectively, each second pressure sensor is in abutting fit with the corresponding abutting block, each second pressure sensor is electrically connected with the controller, and the controller is electrically connected with the third stepping motor in each supporting seat.
9. The multi-angle pile foundation anti-pulling performance detection device of claim 8, wherein: the output shaft of the third stepping motor is fixedly provided with a second threaded rod which is horizontally arranged, the second threaded rod is rotationally connected with the supporting seat, the second threaded rod is fixedly provided with a driving bevel gear, the first threaded rod is fixedly provided with a driven bevel gear meshed with the driving bevel gear, the bottom of the supporting seat is horizontally movably provided with a supporting plate, and an auxiliary plate is fixedly arranged on the supporting plate and is in threaded connection with the second threaded rod.
10. The detection method of the multi-angle pile foundation anti-pulling performance detection device according to any one of claims 1 to 9, wherein the detection method is characterized by comprising the following steps: the method comprises the following steps:
moving the device to the pile foundation, sleeving the inner sleeve on the pile foundation, and connecting the inner sleeve with the pile foundation through the connecting component;
the lifting assembly drives the first plate body to ascend, the first plate body drives the rotating plate to ascend, the rotating plate drives the sliding seat to ascend, the sliding seat pulls the outer sleeve through the pull rod, and then the inner sleeve and the connecting assembly generate pulling force on the pile foundation;
the position of the sliding seat is adjusted through the adjusting mechanism, the angle of the pull rod is adjusted, and then the direction of pulling force on the pile foundation is adjusted;
the first stepping motor drives the rotating plate to rotate, the rotating plate drives the sliding seat to rotate, the sliding seat drives the pull rod to circumferentially rotate, and the direction of the pull rod is further adjusted.
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| CN116497884B (en) | 2024-07-23 |
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