CN113789784B - Low-clearance anchor rod static-pressure pile machine and construction method thereof - Google Patents
Low-clearance anchor rod static-pressure pile machine and construction method thereof Download PDFInfo
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- CN113789784B CN113789784B CN202111179866.XA CN202111179866A CN113789784B CN 113789784 B CN113789784 B CN 113789784B CN 202111179866 A CN202111179866 A CN 202111179866A CN 113789784 B CN113789784 B CN 113789784B
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Abstract
The invention discloses a low clearance anchor rod static pressure pile machine and a construction method thereof, wherein the pile press machine comprises a frame body, a pile press oil cylinder, a counter-force beam unit, a switching and winding device, wherein the counter-force beam unit comprises a main beam and a secondary beam, a first clamping groove and a second clamping groove are respectively arranged at the bottom end and the top end of the vertical part of the main beam, a third clamping groove is arranged at the end part of the secondary beam, and a telescopic tongue is arranged in the third clamping groove; the switching and winding device comprises a mounting base, a driving mechanism, a pressure plate, a winding mechanism and a transmission mechanism; the pile pressing oil cylinder extends and retracts, and the pressure plate is connected with the first clamping groove, the second clamping groove and the third clamping groove respectively by matching with a driving mechanism, so that the pile body can be lifted and pressed downwards. Through pushing down girder and secondary beam respectively with pile pressing hydro-cylinder bottom, form twice pile pressing, pile pressing only need push down half pile shaft length each time, reduces the stroke of pile pressing hydro-cylinder, has reduced the height of vertical support body, can realize the operation requirement under the low headroom environment.
Description
Technical Field
The invention relates to the technical field of pile foundation construction, in particular to a low clearance anchor rod static pressure pile machine.
Background
The static pile is one kind of pile foundation and the static pile driver is used in pressing pile. The existing anchor rod static pressure pile machine in the market is mainly divided into a traditional type and an embracing compression type.
A traditional anchor rod static pressure pile machine is characterized in that a small oil cylinder is connected to a counter-force beam, counter-force Liang Ze is hinged to upright columns on two sides, and a plurality of pin shaft holes are formed in the upright columns to form pile pressing gears. Because the stroke of the oil cylinder is limited, after one-time pile pressing is completed, the counter-force beam needs to be hung by means of a hoist, then the pin is manually pulled out, the rope is released again to enable the counter-force beam to reach the next pile pressing 'gear', and after the pin is fixed, a new round of pile pressing is performed. When pile is needed to be continued, the new pile is connected with the reaction beam at the lowest point through a steel wire rope, and the new pile is hoisted to be in place while the reaction beam is hoisted through the hoist. The traditional anchor rod static pressure pile machine has the limitations of operation in narrow space due to the fact that a hoist crane needs to be arranged to cause redundancy of an upper layer structure; moreover, the repeated adjustment of the position of the counter-force beam greatly consumes physical energy of workers, the efficiency is extremely low, the labor capacity of the workers is large, and the labor time is wasted greatly if continuous pile pressing operation is performed.
The holding-pressing pile press has specially holding unit, and through the oil cylinders on the holding unit, friction force is provided to overcome the counter force of pressing pile and the pile pressing process is completed smoothly. The pile pressing machine with the structure is low in clearance height, applicable to narrow space, high in efficiency and complex in mechanism, manual intervention is not needed in the pile pressing process, the clasped clamp needs to be replaced when corresponding to piles in different forms, and obstacles can be caused to connection of new piles due to the fact that the clasped clamp is arranged on the half waist of the pile pressing machine, pile continuation is inconvenient, different clamps need to be replaced for pile bodies in different forms, and the pile pressing machine is complex.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the low-clearance anchor rod static-pressure pile machine and the construction method thereof, which can be used in a low-clearance construction environment, and are simple to operate and high in construction efficiency.
In order to solve the technical problems, the invention comprises the following technical scheme:
a low clearance anchor rod static pressure stake machine includes:
the frame body comprises a bottom plate and two vertical frames, pile holes are formed in the bottom plate, the vertical frames are arranged on two sides of the pile holes in parallel at intervals, and the bottoms of the two vertical frames are fixedly connected with the bottom plate;
the pile pressing oil cylinder is arranged on the vertical frame, the pile pressing oil cylinder is vertically arranged, and the top of the pile pressing oil cylinder is fixed with the top of the vertical frame;
the reaction beam unit comprises a main beam and a secondary beam; the main beam comprises a horizontal part and two vertical parts arranged at two ends of the horizontal part, the top end of each vertical part is connected with the end part of the horizontal part, the bottom end of each vertical part is provided with a first clamping groove, and the top of each vertical part is provided with a second clamping groove; third clamping grooves are formed in two ends of the secondary beam, and telescopic tongues are arranged in the third clamping grooves and can be matched with the second clamping grooves;
the switching and winding device comprises a mounting base, a driving mechanism, a pressure plate, a winding mechanism and a transmission mechanism; the mounting base is fixedly connected with the bottom end of the pile pressing oil cylinder; the driving mechanism is arranged on the mounting base, is used for driving the pressure plate to rotate and is also used for driving the hoisting mechanism to work; a clamping plate is arranged on the pressure plate; the clamping plate can be matched with the first clamping groove and the third clamping groove respectively.
Furthermore, the inner side of the top of the vertical frame is provided with a first lug plate which is used for being hinged with the top of the pile pressing oil cylinder, a hoop is arranged at the position close to the middle of the vertical frame, and a linear bearing is arranged in the hoop and used for guiding the pile pressing oil cylinder when the pile pressing oil cylinder stretches.
Further, the mounting base comprises an annular body, the inner diameter of the annular body is matched with the outer diameter of the bottom end of the pile pressing oil cylinder, and the mounting base is fixed at the bottom end of the pile pressing oil cylinder;
the annular body is provided with a first connecting plate, and the first connecting plate is used for mounting a driving mechanism;
the annular body is also provided with 2 second connecting plates, the 2 second connecting plates are respectively provided with 1 second lug plate, and the two lug plates are used for fixing the hoisting mechanism; and the transmission mechanism is arranged on the second ear plate and the second connecting plate.
Further, the hoisting mechanism comprises a rotating shaft, a winding drum, a lifting rope and a lifting hook;
two ends of the rotating shaft are respectively arranged on the lug plates II at the two ends, and the winding drum is sleeved on the rotating shaft;
a slotted hole is formed in the top of the secondary beam along the length, and a fixed pulley is arranged in the slotted hole; a vertical through hole is formed in the secondary beam at the middle position of the strip-shaped hole and is used as a lowering channel of a hook lifting rope of the winch;
one end of the lifting rope is fixed on the winding drum; the other end of the lifting rope is provided with a lifting hook, and one end provided with the lifting hook bypasses the fixed pulley and extends downwards from the vertical through hole on the secondary beam.
Further, actuating mechanism includes first direction of rotation and second direction of rotation, realizes controlling the pressure disk through first direction of rotation, realizes controlling hoist mechanism through the second direction of rotation.
Further, the switching and winding device also comprises a bearing, a gear ring rotary table and a bottom cover;
the gear ring rotary table comprises a base, an inner ring and an outer ring, the base is arranged in a lantern ring of the pressure plate, a plurality of first wedge-shaped notches are formed in the bottom of the base along the circumferential direction, the first wedge-shaped notches are inwards enlarged from the edge, first rollers are arranged in the first wedge-shaped notches, and the diameter of the first rollers is D 1 The inner diameter of the lantern ring of the pressure plate is D 2 The outer diameter of the base is D 3 Satisfy D 1 >D 2 -D 3 ；
The bottom cover is fixed at the bottom of the gear ring rotary table and used for limiting the pressure plate and the first roller;
the inner ring of the bearing is fixedly connected with the mounting base, and the outer ring of the bearing is fixed with the inner ring of the gear ring turntable; an inner gear ring used for being connected with the transmission mechanism is arranged on the inner wall of the outer ring of the gear ring turntable;
when the driving mechanism is in the first rotating direction, the transmission mechanism drives the gear ring rotating table to rotate, and the first roller is clamped between the lantern ring of the pressure plate and the base of the gear ring rotating table to drive the pressure plate to rotate;
when the driving mechanism is in the second rotating direction, the transmission mechanism drives the gear ring rotating table to rotate, the first roller enters the first wedge-shaped notch, and the pressure plate does not rotate.
Further, the hoisting mechanism comprises a rotating shaft and a winding drum, a plurality of second wedge-shaped notches are formed in the rotating shaft in the circumferential direction, the second wedge-shaped notches are inwards enlarged from edges, second roller columns are arranged in the second wedge-shaped notches, and the diameter of the second roller columns is d 1 The inner diameter of the drum is d 2 The outer diameter of the rotating shaft is d 3 Satisfy d 1 >d 2 -d 3 ；
When the driving mechanism is in the second rotating direction, the transmission mechanism drives the rotating shaft of the hoisting mechanism to rotate, and the second roller is clamped between the rotating shaft and the winding drum to drive the winding drum to rotate;
when the driving mechanism is in the first rotating direction, the transmission mechanism drives the rotating shaft of the hoisting mechanism to rotate, the second roller enters the second wedge-shaped notch, and the winding drum does not rotate.
Further, a vertical part of the main beam forms a vertical groove through a baffle;
the tip of secondary beam is located vertical inslot, and can reciprocate in vertical inslot.
Correspondingly, the invention also provides a construction method of the low clearance anchor rod static pressure pile machine, the low clearance anchor rod static pressure pile machine is adopted for construction, and the construction method comprises the following steps:
step one, a static pressure pile machine is in an initial state, and a lifting hook of a hoisting device is fixedly connected with a pile body; in the initial state, the pile pressing oil cylinder is in a cylinder extending state, the clamping plate of the pressure plate is clamped in the third clamping groove of the secondary beam, and the pile pressing oil cylinder is fixedly connected with the secondary beam;
step two, the pile pressing oil cylinder performs cylinder retracting operation, the secondary beam rises to the top, the driving mechanism drives the pressure plate to rotate, the clamping plate is separated from the third clamping groove, the telescopic tongue extends out and is clamped in the second clamping groove, and the main beam is fixedly connected with the secondary beam;
thirdly, the pile pressing oil cylinder performs cylinder extending operation, then the driving mechanism drives the pressure plate to rotate, the clamping plate is combined with the first clamping groove, and the pile pressing oil cylinder is fixedly connected with the bottom of the main beam;
fourthly, the pile pressing oil cylinder performs cylinder retracting operation, so that the main beam is lifted to the top; then the driving mechanism drives the hoisting mechanism to hoist the pile body and enable the pile body to be vertical;
aligning the position of the pile body, and performing cylinder extending operation on a pile pressing oil cylinder to enable the main beam to press the pile body downwards;
step six, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is separated from the first clamping groove; the pile pressing oil cylinder performs cylinder shrinkage operation, then the driving mechanism drives the pressure plate to rotate, the clamping plate of the pressure plate is clamped in the third clamping groove of the secondary beam, and the pile pressing oil cylinder is fixedly connected with the secondary beam again;
and seventhly, performing cylinder extending operation by using the pile pressing oil cylinder to enable the secondary beam to press the pile body downwards, completing one pile pressing operation, and recovering the static pile machine to the initial state.
Further, the driving mechanism comprises a first rotating direction and a second rotating direction, the pressure plate is controlled through the first rotating direction, and the winch mechanism is controlled through the second rotating direction;
in the second step, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is separated from the third clamping groove, and the driving mechanism rotates towards the first rotating direction to control the rotation;
in the third step, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is combined with the first clamping groove, and the driving mechanism rotates towards the first rotating direction to control the clamping plate and the first clamping groove;
in the fourth step, the driving mechanism drives the hoisting mechanism to hoist the pile body and enable the pile body to be vertical, and the driving mechanism rotates towards the second rotation direction to control the pile body to be vertical;
and in the sixth step, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is separated from the first clamping groove, the driving mechanism drives the pressure plate to rotate, the clamping plate of the pressure plate is buckled in the third clamping groove of the secondary beam, and the driving mechanism rotates towards the first rotating direction to control the rotation.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the invention provides a low-clearance anchor rod static pressure pile machine which comprises a frame body, a pile pressing oil cylinder, a counter-force beam unit, a switching device and a winding device, wherein the counter-force beam unit comprises a main beam and a secondary beam, a first clamping groove and a second clamping groove are respectively arranged at the bottom end and the top end of the vertical part of the main beam, a third clamping groove is arranged at the end part of the secondary beam, and a telescopic tongue is arranged in the third clamping groove; the switching and winding device comprises a mounting base, a driving mechanism, a pressure plate, a winding mechanism and a transmission mechanism; the pile pressing oil cylinder extends and retracts, and the pressure plate is connected with the first clamping groove, the second clamping groove and the third clamping groove respectively by matching with a driving mechanism, so that the pile body can be lifted and pressed downwards. Through being fixed with pile pressing hydro-cylinder top and vertical frame top otic placode, girder and secondary beam are pushed down respectively to the bottom, form twice pile pressing, and the pile pressing only needs half pile body length of pushing down each time, consequently, can reduce the stroke of pile pressing hydro-cylinder, has reduced the height of vertical support body, and the overall height of static pressure stake machine is a little higher than the height of pile body, can realize operation requirement under the low headroom environment. The pile body hoisting and pile body pressing operation can be automated through the hydraulic oil cylinder and the driving mechanism, and the pile pressing efficiency is greatly improved. Through with actuating mechanism rotation direction control pressure disk and hoist mechanism respectively, simplified switching and hoist device's structure and the complexity of operation greatly, reduced equipment cost, improved the convenience of construction.
Drawings
Fig. 1 is a schematic structural view of a low clearance anchor rod static pressure pile machine in one embodiment of the invention;
FIG. 2 is a schematic structural view of a frame body according to an embodiment of the present invention;
FIG. 3 is a side view of a frame according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a main beam according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a secondary beam according to an embodiment of the present invention;
FIG. 6 is an exploded view of a secondary beam according to one embodiment of the present invention;
FIG. 7 is a perspective view of the transfer and hoisting device according to an embodiment of the present invention;
FIG. 8 is a perspective view of another embodiment of the transfer and hoisting device of the present invention;
FIG. 9 is an exploded view of a portion of the transfer and winching device in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of a mounting base according to an embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a ring gear turntable according to an embodiment of the present invention;
FIG. 12 is a schematic structural view of a rotating shaft and a winding drum of the winding mechanism according to an embodiment of the present invention;
fig. 13 is a schematic view of an initial state of the low clearance anchor rod static pressure pile machine in the invention;
FIG. 14 is a schematic view of the connection between the platen and the third slot of the secondary beam;
FIG. 15 is a schematic view of the connection between the pile body and the hoisting mechanism according to the present invention;
FIG. 16 is a schematic diagram of the pile pressing cylinder driving the secondary beam to ascend;
FIG. 17 is a schematic view of the connection of the secondary beams to the primary beams of the present invention;
FIG. 18 is a schematic view of the connection of the platen and the first card slot of the present invention;
FIG. 19 is a schematic view of pile body hoisting according to the present invention;
FIG. 20 is a schematic view of a first staking operation of the present invention;
FIG. 21 is a schematic view of the platen of the present invention separated from the first card slot;
FIG. 22 is a schematic view of a pile pressing cylinder retracting mechanism according to the present invention;
FIG. 23 is a schematic view showing the connection between the platen and the third slot;
fig. 24 is a schematic view of a second piling operation in accordance with the present invention.
The numbers in the figures are as follows:
1-pile body;
10-a frame body; 11-a base plate; 12-a vertical frame; 13-pile hole; 14-ear plate one; 15-anchor ear;
20-pile pressing oil cylinder;
30-a reaction beam unit; 31-a main beam; 311-horizontal part; 312-vertical; 313-a first card slot; 314-a second card slot; 32-secondary beam; 321-a third card slot; 322-telescoping tongue; 323-spring; 324-slotted holes; 325-fixed pulley;
40-switching and winding device; 41-mounting a base; 411-a cyclic body; 412-a first connection plate; 413-a second connection plate; 414-ear plate two; 42-a drive mechanism; 43-bearings; 44-ring gear turntable; 441-a base; 442-inner ring; 443-outer ring; 444-wedge-shaped notch one; 445-roller one; 45-pressing a plate; 46-a bottom cover; 47-a retainer ring; 48-a transmission mechanism; 49-hoisting mechanism; 491-a rotating shaft; 4911-wedge notch two; 4912-roller two; 492-a reel; 493-a lifting rope; 494-hook.
Detailed Description
The invention provides a low clearance anchor rod static pressure pile machine and a construction method thereof, which are further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in light of the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
Example one
As shown in fig. 1, the low clearance anchor rod static pressure pile machine provided in this embodiment includes a frame 10, a pile pressing cylinder 20 disposed on the frame 10, a reaction beam unit 30, and a transfer and hoisting device 40.
Referring to fig. 1 to 3, the frame body 10 includes a bottom plate 11 and two vertical frames 12, the bottom plate 11 is provided with pile holes 13, and the pile holes 13 are used as channels for pressing down the pile body 1. The vertical frames 12 are arranged on two sides of the pile hole 13 at intervals in parallel, and the bottoms of the two vertical frames 12 are fixedly connected with the bottom plate 11. By way of example, the vertical frame 12 is formed by welding steel plates and channel steel. The inner side of the top of the vertical frame 12 is provided with a first ear plate 14 which is used for being hinged with the top of the pile pressing oil cylinder 20, a hoop 15 is arranged at the position close to the middle of the vertical frame 12, the hoop 15 is used for limiting the oil cylinder, and the more preferable embodiment is that a linear bearing is arranged in the hoop 15 and plays a role in guiding the pile pressing oil cylinder 20.
Referring to fig. 1 to 3, the pile pressing cylinder 20 is vertically disposed, and for example, two pile pressing cylinders 20 with a sufficient rated pressure are selected, and the stroke of the pile pressing cylinders is half of the pile length.
As shown in fig. 1, 4 to 6, 13, and 16, the reaction beam unit 30 includes a main beam 31 and a sub beam 32. The main beam 31 comprises a horizontal portion 311 and two vertical portions 312 arranged at two ends of the horizontal portion 311, wherein the top ends of the vertical portions 312 are connected with the end portion of the horizontal portion 311, the bottom ends of the vertical portions 312 are provided with first clamping grooves 313, and the top portions of the vertical portions 312 are provided with second clamping grooves 314. Third clamping grooves 321 are formed in two ends of the secondary beam 32, and telescopic tongues 322 are arranged in the third clamping grooves 321, wherein the telescopic tongues 322 are matched with the second clamping grooves 314. The main beam 31 in fig. 4 is shaped like a Chinese character 'ji', which is just one implementation manner of the main beam 31, as long as the main beam includes a horizontal portion 311 and two vertical portions 312 disposed at two ends of the horizontal portion 311, and there is no limitation on whether the main beam includes other structures, the end of the main beam 31 shaped like a Chinese character 'ji' is mainly used for disposing the first engaging groove 313, and of course, the first engaging groove 313 may be directly disposed at the bottom end side portion of the vertical portion 312. Further, a bearing plate is provided at the bottom of the vertical portion 312 as a pile pressing cylinder 20 for transmitting pile pressing force.
In fig. 4, the second locking groove 314 is formed on the top of the vertical portion 312 of the main beam 31 by disposing a bump on the vertical portion 312 and spaced from the horizontal portion 311, and the second locking groove 314 is formed between the bump and the horizontal portion 311. The second engaging groove 314 is mainly used for engaging the extension tongue 322 in the third engaging groove 321 into the second engaging groove 314 when the secondary beam 32 is close to the top of the primary beam 31, so that the primary beam 31 and the secondary beam 32 are connected together. The first clamping groove 313 is used for realizing the connection between the main beam 31 and the switching and winding device 40, so that the main beam 31 can move up and down under the driving of the pile pressing oil cylinder 20; the third slot 321 is used to connect the secondary beam 32 with the transfer and hoisting device 40, so that the secondary beam 32 can move up and down under the driving of the pile pressing cylinder 20.
Referring to fig. 5 and 6, the main structure of the secondary beam 32 is a bar shape, the two ends of the secondary beam are provided with third slots 321, the third slots 321 are provided with telescopic tongues 322 and springs 323, and the springs 323 provide acting force for the resetting of the telescopic tongues 322. The top of the main structure of the secondary beam 32 is provided with a slotted hole 324 along the length, and the slotted hole 324 is internally provided with 4 fixed pulleys 325, and the fixed pulleys 325 are used for providing support and steering for the lifting rope of the hoisting mechanism. The secondary beam 32 at the middle position of the slotted hole is provided with a vertical through hole as a lifting rope lowering channel of the hoisting mechanism. Further, the vertical portion 312 of the main beam 31 forms a vertical groove through a baffle, the end portion of the secondary beam 32 is located in the vertical groove, and can move up and down in the vertical groove under the action of power, and the vertical groove plays a role in limiting and guiding.
As shown in fig. 7 to 9, the switching and winding device includes a mounting base 41, a driving mechanism 42, a pressure plate 45, a transmission mechanism 48, and a winding mechanism 49. The mounting base 41 is arranged on the pile pressing oil cylinder 20, and the driving mechanism 42 is arranged on the mounting base 41 and used for driving the pressure plate 45 to rotate and driving the hoisting mechanism 49 to work. Clamping plates are arranged on the pressure plate 45 and can be matched with the first clamping groove 313 and the third clamping groove 321 respectively. The winding mechanism 49 is operated by the driving mechanism 42. The switching and winding device 40 is arranged at an oil inlet of the pile pressing oil cylinder 20, oil is divided into two paths, and one path of oil enters the oil cylinder to finish pile pressing operation; the other path enters a driving mechanism, the driving mechanism outputs torque under the driving of oil, and the arrangement mode enables one path of oil source to supply oil for two paths, so that the arrangement of the oil path is simple.
By way of example and not limitation, as shown in fig. 7 to 10, the mounting base 41 includes a ring body 411, the ring body 411 is of a stepped ring structure, an inner diameter of the ring body 411 matches an outer diameter of a bottom end of the pile ram 20, and the mounting base 41 is fixed to the bottom end of the pile ram 20 and may be fixed by a bolt or a pin. The ring-shaped body 411 is provided with a first connecting plate 412, and the first connecting plate 412 is used for mounting the driving mechanism 42. The annular body 411 is further provided with 2 second connecting plates 413,2, and the second connecting plates 413 are respectively provided with 1 second lug plate 414, and the two second lug plates 414 are used for fixing the rotating shaft of the hoisting mechanism 49. The second ear plate 414 and the second connecting plate 413 are also used for mounting the transmission mechanism 48, and the transmission mechanism 48 is a transmission gear set by way of example.
By way of example and not limitation, as shown in fig. 7-9, the platen 45 includes a collar and a catch plate, the driving mechanism 42 rotates the collar to move the catch plate circumferentially, and the catch plate is configured to engage with the first catch 313 and the third catch 321.
By way of example and not limitation, as shown in fig. 7, 8 and 12, the hoisting mechanism 49 includes a shaft 491, a drum 492, a hoist rope 493, and a hook 494. The two ends of the rotating shaft 491 are disposed on the second ear plate 414 of the mounting base 41 and rotatably connected. The drum 492 is used for winding and unwinding the rope, the hook 494 is located at one end of the rope, and the secondary beam is provided with a fixed pulley for supporting the rope and changing the direction of the rope, which is described in the foregoing and will not be described herein again.
The low headroom stock static pressure stake machine that this embodiment provided, its theory of operation is: under the condition that the telescopic tongue 322 in the third clamping groove 321 is clamped into the second clamping groove 314 and the clamping plate is clamped into the first clamping groove 313, the secondary beam 32 and the main beam 31 are fixed and close to the horizontal part 311 of the main beam 31, the bottom of the main beam 31 is fixed with the bottom end of the pile pressing oil cylinder 20, and the pile pressing oil cylinder 20 extends to realize the first pile pressing of the pile body 1; and then the pile-pressing oil cylinder 20 retracts, the clamping plate is clamped into the second clamping groove 314 through the driving mechanism 42, the telescopic tongue 322 is pushed out from the second clamping groove 314 by the clamping plate, the secondary beam is separated from the main beam and is fixed with the bottom end of the pile-pressing oil cylinder 20, and the pile body 1 is extended through the pile-pressing oil cylinder 20 to realize secondary pile pressing. Therefore, the static pile press can complete one-time complete pile pressing operation through 'two extension and one contraction' of the pile pressing oil cylinder 20, and pile pressing efficiency is greatly improved. And, through fixing pile pressing hydro-cylinder top and vertical frame top otic placode, the bottom pushes down girder and secondary beam respectively, forms twice pile pressing, and the pile pressing only need push down half pile body length each time, consequently, can reduce the stroke of pile pressing hydro-cylinder, has reduced the height of vertical support body, and the total height of static pressure stake machine is a little higher than the height of pile body 1, can realize the operation requirement under the low headroom environment.
It should be noted that the driving mechanism 42 can control the rotation of the winding drum 492 of the winding mechanism 49 through the transmission mechanism 48, and can also control the rotation of the pressure plate 45 through the transmission mechanism 48. One way of doing this is two drive mechanisms 42, controlling the winch mechanism 49 and the pressure plate 45, respectively. In another implementation, the same transmission mechanism 48 can control the hoisting mechanism 49 and the pressure plate 45 respectively by switching different gear sets in different modes, the arrangement of the gear sets can be set as required, and those skilled in the art can design the transmission mechanism according to the gear transmission principle and the prior art on the basis of the disclosure of the present invention.
The present application provides a more efficient non-conventional implementation of controlling the winding mechanism 49 and the pressure plate 45 separately by switching gear sets relative to either two drive mechanisms or one drive mechanism. The drive mechanism 42 includes a first rotational direction by which the control of the pressure plate 45 is achieved and a second rotational direction by which the control of the winding mechanism 49 is achieved.
As shown in fig. 7 to 11, the switching and winding device 40 further includes a bearing 43, a ring gear turntable 44, and a bottom cover 46. The gear ring rotating table 44 comprises a base 441, an inner ring 442 and an outer ring 443, wherein the base 441 is arranged in a lantern ring of the pressure plate 45, a plurality of wedge-shaped notches I444 are arranged at the bottom of the base 441 along the circumferential direction, the wedge-shaped notches I444 are inwards expanded from the edge, a roller I445 is arranged in each wedge-shaped notch I444, and each roller I445 is arranged in each roller IDiameter of one 445 of D 1 The inner diameter of the lantern ring of the pressure plate 45 is D 2 The outer diameter of the base 441 is D 3 Satisfy D 1 >D 2 -D 3 . The first roller 445 is used for realizing unidirectional rotation between the gear ring rotating table 44 and the pressure plate 45. When the ring gear turntable 44 rotates clockwise, as shown in fig. 8, the roller one 445 is located in the wedge-shaped notch one 444, and the pressure plate 45 does not rotate; when the gear ring rotating table 44 rotates counterclockwise, the first roller 445 is clamped between the inner wall of the collar of the pressure plate 45 and the outer wall of the base 441 of the gear rotating table, so that the pressure plate 45 rotates counterclockwise along with the first roller. And a bottom cover 46 is fixed at the bottom of the gear ring rotating table 44 through bolts and used for limiting the pressure plate 45 and the first roller 445. The inner ring of the bearing 43 is fixedly connected to the mounting base 41, and the outer ring thereof is fixed to the inner ring 442 of the ring gear turntable 44. An inner ring gear connected with the transmission mechanism 48 is arranged on the inner wall of the outer ring 443 of the gear ring rotary table 44, the transmission mechanism 48 can drive the gear ring rotary table 44 to rotate, and the bearing 43 realizes that the gear ring rotary table 44 freely rotates relative to the mounting base 41. Further, the switching and winding device 40 further comprises a retainer ring 47, wherein the retainer ring 47 is located below the large ring of the stepped structure of the mounting base, so that the mounting base and the outer ring 443 of the bearing 43 are arranged at intervals.
The driving mechanism 42 controls the hoisting mechanism 49 through a second rotation direction, and the gear shifting can be selectively performed through the transmission mechanism 48, in this embodiment, another implementation manner is provided, as shown in fig. 7 to 12, a plurality of wedge-shaped notches two 4911 are arranged on a rotating shaft 491 of the hoisting mechanism 49 along the circumferential direction, the wedge-shaped notches two 4911 are inwards enlarged from the edge, roller two 4912 are arranged in the wedge-shaped notches two 4911, and the diameter of the roller two 4912 is d 1 The inner diameter of the reel 492 is d 2 The outer diameter of the rotating shaft 491 is d 3 And satisfies the following conditions: d 1 >d 2 -d 3 . The second roller 4912 is used for realizing unidirectional rotation between the winding drum 492 and the rotating shaft 491. As shown in fig. 12, when the rotating shaft 491 rotates clockwise, the second roller 4912 is clamped between the rotating shaft 491 and the winding drum 492, so that the pressure plate 45 rotates clockwise; when the shaft 491 rotates counterclockwise, the second roller 4912 is positioned in the second wedge-shaped slot 4911 and the spool 492 does not rotate therewith.
Example two
The embodiment provides a construction method of a low-clearance anchor rod static pressure pile machine, and the construction method is further described with reference to the first embodiment and the accompanying drawings 1 to 23. The construction method comprises the following steps:
step one, as shown in fig. 13 and fig. 14, the static pile press is in an initial state, and a hook 494 of a hoisting device is fixedly connected with a pile body 1; in the initial state, the pile pressing oil cylinder 20 is in a cylinder extending state, the clamping plate of the pressure plate 45 is clamped in the third clamping groove 321 of the secondary beam 32, and the pile pressing oil cylinder 20 is fixedly connected with the secondary beam 32; as shown in fig. 15, the top end of the pile body is fixed to the hook after being bundled by the rope, and it should be noted that the pile body and the hook may be fixed in step two or step three.
Step two, as shown in fig. 15, the pile pressing oil cylinder 20 performs a cylinder retracting operation, and the secondary beam 32 rises to the top; as shown in fig. 16, the driving mechanism drives the pressure plate 45 to rotate, so that the clamping plate is separated from the third clamping groove 321, the telescopic tongue 322 extends out and is clamped in the second clamping groove 314, and the main beam 31 is fixedly connected with the secondary beam 32;
step three, as shown in fig. 18, the pile pressing oil cylinder 20 performs cylinder extending operation, then the driving mechanism drives the pressure plate 45 to rotate, so that the clamping plate is combined with the first clamping groove 313, and the pile pressing oil cylinder 20 is fixedly connected with the bottom of the main beam 31;
step four, as shown in fig. 19, the pile pressing oil cylinder 20 performs a cylinder retracting operation to lift the main beam 31 to the top; then the driving mechanism drives the hoisting mechanism 49 to hoist the pile body 1 and make the pile body 1 vertical;
step five, as shown in fig. 19 and fig. 20, the pile body 1 is aligned, and the pile pressing oil cylinder 20 performs cylinder extending operation, so that the main beam 31 presses the pile body 1;
sixthly, as shown in fig. 21, the driving mechanism drives the pressure plate 45 to rotate, so that the clamping plate is separated from the first clamping groove 313; referring to fig. 22 and 23, the pile pressing oil cylinder 20 performs a cylinder retracting operation, then the driving mechanism drives the pressure plate 45 to rotate, a clamping plate of the pressure plate 45 is fastened in a third clamping groove 321 of the secondary beam 32, and the pile pressing oil cylinder 20 is fixedly connected with the secondary beam 32 again;
seventhly, as shown in fig. 24, the pile pressing oil cylinder 20 performs cylinder extending operation, so that the secondary beam 32 presses the pile body 1 downwards, one pile pressing operation is completed, and the static pile press is restored to the initial state.
Further, the driving mechanism 42 includes a first rotation direction and a second rotation direction, the control of the pressure plate 45 is realized through the first rotation direction, and the control of the winding mechanism 49 is realized through the second rotation direction; in the second step, the driving mechanism drives the pressure plate 45 to rotate, so that the clamping plate is separated from the third clamping groove 321, and the driving mechanism rotates towards the first rotating direction to control the rotation; in the third step, the driving mechanism drives the pressure plate 45 to rotate, so that the clamping plate is combined with the first clamping groove 313, and the driving mechanism rotates towards the first rotating direction to control the rotation; in the fourth step, the driving mechanism drives the hoisting mechanism 49 to hoist the pile body 1 and enable the pile body 1 to be vertical, and the driving mechanism rotates towards the second rotation direction to control the hoisting; in the sixth step, the driving mechanism drives the pressure plate 45 to rotate, so that the clamping plate is separated from the first clamping groove 313, the driving mechanism drives the pressure plate 45 to rotate, the clamping plate of the pressure plate 45 is clamped in the third clamping groove 321 of the secondary beam 32, and the rotation of the driving mechanism towards the first rotation direction is controlled. The specific structures of the gear ring rotating platform 44 and the hoisting mechanism 49 are described in the first embodiment, and are not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a low headroom stock static pressure stake machine which characterized in that includes:
the frame body comprises a bottom plate and two vertical frames, pile holes are formed in the bottom plate, the vertical frames are arranged on two sides of the pile holes in parallel at intervals, and the bottoms of the two vertical frames are fixedly connected with the bottom plate;
the pile pressing oil cylinder is arranged on the vertical frame, the pile pressing oil cylinder is vertically arranged, and the top of the pile pressing oil cylinder is fixed with the top of the vertical frame;
the reaction beam unit comprises a main beam and a secondary beam; the main beam comprises a horizontal part and two vertical parts arranged at two ends of the horizontal part, the top end of each vertical part is connected with the end part of the horizontal part, the bottom end of each vertical part is provided with a first clamping groove, and the top of each vertical part is provided with a second clamping groove; third clamping grooves are formed in two ends of the secondary beam, and telescopic tongues are arranged in the third clamping grooves and can be matched with the second clamping grooves;
the switching and winding device comprises a mounting base, a driving mechanism, a pressure plate, a winding mechanism and a transmission mechanism; the mounting base is fixedly connected with the bottom end of the pile pressing oil cylinder; the driving mechanism is arranged on the mounting base, is used for driving the pressure plate to rotate and is also used for driving the hoisting mechanism to work; a clamping plate is arranged on the pressing plate; the clamping plate can be matched with the first clamping groove and the third clamping groove respectively;
under the condition that the telescopic tongue in the third clamping groove is clamped into the second clamping groove and the clamping plate is clamped into the first clamping groove, the secondary beam and the main beam are fixed, the bottom of the main beam is fixed with the bottom end of the pile pressing oil cylinder, and the pile pressing oil cylinder extends the cylinder to realize primary pile pressing of a pile body; and then the pile pressing oil cylinder retracts to operate, the clamping plate is clamped into the second clamping groove through the driving mechanism, the clamping plate pushes the telescopic tongue out of the second clamping groove, the secondary beam is separated from the main beam, the bottom end of the secondary beam is fixed with the pile pressing oil cylinder, and the pile body can be pressed for the second time through the pile pressing oil cylinder extending.
2. A low clearance anchor rod static pile machine as claimed in claim 1,
the inner side of the top of the vertical frame is provided with a first lug plate used for being hinged to the top of the pile pressing oil cylinder, a hoop is arranged at the position close to the middle of the vertical frame, and a linear bearing is arranged in the hoop and used for guiding the pile pressing oil cylinder when the pile pressing oil cylinder stretches out and draws back.
3. A low clearance anchor rod static pile machine as claimed in claim 1,
the mounting base comprises an annular body, the inner diameter of the annular body is matched with the outer diameter of the bottom end of the pile pressing oil cylinder, and the mounting base is fixed at the bottom end of the pile pressing oil cylinder;
the annular body is provided with a first connecting plate, and the first connecting plate is used for mounting a driving mechanism;
the annular body is also provided with 2 second connecting plates, 1 second lug plate is arranged on each of the 2 second connecting plates, and the two lug plates are used for fixing the hoisting mechanism; and the transmission mechanism is arranged on the second ear plate and the second connecting plate.
4. A low clearance anchor rod static pile machine as claimed in claim 3,
the hoisting mechanism comprises a rotating shaft, a winding drum, a lifting rope and a lifting hook;
two ends of the rotating shaft are respectively arranged on the lug plates II at the two ends, and the winding drum is sleeved on the rotating shaft;
a slotted hole is formed in the top of the secondary beam along the length, and a fixed pulley is arranged in the slotted hole; a vertical through hole is formed in the secondary beam at the middle position of the strip-shaped hole and is used as a lowering channel of a hook lifting rope of the winch;
one end of the lifting rope is fixed on the winding drum; the other end of the lifting rope is provided with a lifting hook, and one end provided with the lifting hook bypasses the fixed pulley and extends downwards from the vertical through hole on the secondary beam.
5. A low clearance anchor rod static pile machine as claimed in claim 4,
the driving mechanism comprises a first rotating direction and a second rotating direction, the pressure plate is controlled through the first rotating direction, and the winch mechanism is controlled through the second rotating direction.
6. A low clearance anchor rod static pile machine as claimed in claim 5,
the switching and winding device also comprises a bearing, a gear ring rotary table and a bottom cover;
the gear ring rotary table comprises a base, an inner ring and an outer ring, the base is arranged in a lantern ring of the pressure plate, a plurality of first wedge-shaped notches are formed in the bottom of the base along the circumferential direction, the first wedge-shaped notches are inwards enlarged from the edge, first rollers are arranged in the first wedge-shaped notches, and the diameter of the first rollers is D 1 The inner diameter of the lantern ring of the pressure plate is D 2 The outer diameter of the base is D 3 Satisfy D 1 >D 2 -D 3 ；
The bottom cover is fixed at the bottom of the gear ring rotary table and used for limiting the pressure plate and the first roller;
the inner ring of the bearing is fixedly connected with the mounting base, and the outer ring of the bearing is fixed with the inner ring of the gear ring turntable; an inner gear ring used for being connected with the transmission mechanism is arranged on the inner wall of the outer ring of the gear ring turntable;
when the driving mechanism is in the first rotating direction, the transmission mechanism drives the gear ring rotating table to rotate, and the first roller is clamped between the lantern ring of the pressure plate and the base of the gear ring rotating table to drive the pressure plate to rotate;
when the driving mechanism is in the second rotating direction, the transmission mechanism drives the gear ring rotating table to rotate, the first roller enters the first wedge-shaped notch, and the pressure plate does not rotate.
7. A low clearance anchor rod static pile machine as claimed in claim 6,
the hoisting mechanism comprises a rotating shaft and a winding drum, a plurality of second wedge-shaped notches are formed in the rotating shaft in the circumferential direction, the second wedge-shaped notches are inwards enlarged from edges, second roller rollers are arranged in the second wedge-shaped notches, and the diameter of the second roller rollers is d 1 The inner diameter of the drum is d 2 The outer diameter of the rotating shaft is d 3 Satisfy d 1 >d 2 -d 3 ；
When the driving mechanism is in the second rotating direction, the transmission mechanism drives the rotating shaft of the hoisting mechanism to rotate, and the second roller is clamped between the rotating shaft and the winding drum to drive the winding drum to rotate;
when the driving mechanism is in the first rotating direction, the transmission mechanism drives the rotating shaft of the hoisting mechanism to rotate, the second roller enters the second wedge-shaped notch, and the winding drum does not rotate.
8. A low clearance anchor rod static pile machine as claimed in claim 1,
the vertical part of the main beam forms a vertical groove through a baffle;
the tip of secondary beam is located vertical inslot, and can reciprocate in vertical inslot.
9. A construction method of a low clearance anchor rod static pile machine, which is characterized in that the low clearance anchor rod static pile machine of claim 1 is adopted for construction, and the construction method comprises the following steps:
step one, a static pressure pile machine is in an initial state, and a lifting hook of a hoisting device is fixedly connected with a pile body; in the initial state, the pile pressing oil cylinder is in a cylinder extending state, the clamping plate of the pressure plate is clamped in the third clamping groove of the secondary beam, and the pile pressing oil cylinder is fixedly connected with the secondary beam;
step two, the pile pressing oil cylinder retracts, the secondary beam rises to the top, the driving mechanism drives the pressure plate to rotate, the clamping plate is separated from the third clamping groove, meanwhile, the telescopic tongue extends out and is clamped in the second clamping groove, and the main beam is fixedly connected with the secondary beam;
thirdly, the pile pressing oil cylinder performs cylinder extending operation, then the driving mechanism drives the pressure plate to rotate, the clamping plate is combined with the first clamping groove, and the pile pressing oil cylinder is fixedly connected with the bottom of the main beam;
fourthly, the pile pressing oil cylinder performs cylinder retracting operation, so that the main beam is lifted to the top; then the driving mechanism drives the hoisting mechanism to hoist the pile body and enable the pile body to be vertical;
aligning the position of the pile body, and performing cylinder extending operation on a pile pressing oil cylinder to enable the main beam to press the pile body downwards;
step six, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is separated from the first clamping groove; the pile pressing oil cylinder is used for performing cylinder contraction operation, then the driving mechanism drives the pressure plate to rotate, the clamping plate of the pressure plate is clamped in the third clamping groove of the secondary beam, and the pile pressing oil cylinder is fixedly connected with the secondary beam again;
and seventhly, performing cylinder extending operation by using the pile pressing oil cylinder to enable the secondary beam to press the pile body downwards, completing one pile pressing operation, and recovering the static pile machine to the initial state.
10. The construction method of the low clearance anchor rod static pressure pile machine as claimed in claim 9,
the driving mechanism comprises a first rotating direction and a second rotating direction, the pressure plate is controlled through the first rotating direction, and the winch mechanism is controlled through the second rotating direction;
in the second step, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is separated from the third clamping groove, and the driving mechanism rotates towards the first rotating direction to control the rotation;
in the third step, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is combined with the first clamping groove, and the driving mechanism rotates towards the first rotating direction to control the clamping plate and the first clamping groove;
in the fourth step, the driving mechanism drives the hoisting mechanism to hoist the pile body and enable the pile body to be vertical, and the driving mechanism rotates towards the second rotation direction to control the pile body to be vertical;
and in the sixth step, the driving mechanism drives the pressure plate to rotate, so that the clamping plate is separated from the first clamping groove, the driving mechanism drives the pressure plate to rotate, the clamping plate of the pressure plate is buckled in the third clamping groove of the secondary beam, and the driving mechanism rotates towards the first rotating direction to control the rotation.
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| CN202111179866.XA CN113789784B (en) | 2021-10-11 | 2021-10-11 | Low-clearance anchor rod static-pressure pile machine and construction method thereof |
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