Pile pulling device for building construction
Technical Field
The utility model relates to the technical field of building construction, in particular to a pile pulling device for building construction.
Background
The building construction refers to the production activity of engineering construction implementation stage, which is the construction process of various buildings, and can be said to be the process of changing various lines on a design drawing into real objects at a designated place. The method comprises foundation engineering construction, main body structure construction, roof engineering construction, decoration engineering construction and the like. The site of construction is referred to as a "building site" or "job site," also known as a worksite. In the construction process, a special pulling device is needed to pull the foundation pile out of the groove.
The basic principle of the existing pile pulling technology and special equipment is to destroy the extrusion force of geology around the pile foundation to the pile, loosen the soil around the pile, reduce the friction force of the soil to the pile, and then use the corresponding hoisting machinery for swinging and lifting, so that the hoisting machinery not only increases the high cost, but also severely destroys the surrounding geology, and easily causes the problem that the foundation pile damages the inner diameter of the just-driven pile body when swinging and lifting. In addition, the existing pile pulling equipment is mostly directly placed on the ground, the equipment position is easy to move in the pile pulling process, and the pile pulling effect is affected.
In view of the above, there is a need to provide a pile pulling device for construction.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a pile pulling device for building construction, which is stable and reliable in pile pulling process, small in geological damage to the surrounding of a foundation pile, easy in pile pulling and high in efficiency.
In order to solve the problems, the utility model adopts the following technical scheme:
The pile pulling device for building construction comprises a top plate and supporting legs arranged below four corners of the top plate, wherein a first telescopic device is vertically and fixedly arranged in the center of the top plate, a telescopic rod of the first telescopic device penetrates out of the bottom of the top plate and is coaxially connected with a lifting rod, a lifting plate is fixedly arranged at the lower end of the lifting rod, and a lifting disc and a mounting disc are sequentially arranged on the lifting rod from bottom to top above the lifting plate;
gear teeth are uniformly arranged on the edge of the hanging scaffold in the circumferential direction, a pinion meshed with the gear teeth is rotatably arranged below the edge of the mounting scaffold, a driving mechanism for driving the pinion to rotate is fixedly arranged above the mounting scaffold, two guide posts are vertically arranged in the middle of the left side and the right side of the top plate, and a limiting block matched with the distance between the two guide posts on the same side of the top plate is fixedly arranged at the edge of the mounting scaffold;
The bottom of the hanging scaffold is provided with a clamping mechanism.
As one implementation mode of the utility model, two mounting plates are symmetrically arranged at the bottom of the hanging scaffold, a plurality of guide rods are arranged between the two mounting plates, two clamping blocks are symmetrically arranged between the two mounting plates, the top of each clamping block is fixedly provided with a guide block, the guide block is provided with a through hole corresponding to the guide rod, the outer side of each mounting plate is fixedly provided with a second telescopic device, and the telescopic rods of the second telescopic devices penetrate from the inner side of each mounting plate and then are propped against the outer side of each clamping block.
As one implementation mode of the utility model, the bottom of the guide post is provided with a chute, a sliding block is arranged in the chute in a vertically sliding way, the upper end of the sliding block is connected with a third telescopic device fixedly arranged at the upper part of the chute, and the lower end of the sliding block is connected with the upper end of a cone rod penetrating out from the lower end of the guide post.
As an implementation mode of the utility model, a lifting mechanism is fixedly arranged between two guide posts on the same side of the top plate along the vertical direction, a moving block of the lifting mechanism is fixedly connected with a limiting block, and the lifting mechanism and the first telescopic device synchronously lift.
As one implementation mode of the utility model, at least two pinion gears and a plurality of pinion gears are circumferentially and uniformly arranged below the mounting plate and synchronously rotate, and universal wheels with brake pads are arranged at the bottoms of the supporting legs.
As one implementation mode of the utility model, the hanging scaffold is rotatably sleeved on the lifting rod, and the mounting scaffold is fixedly or movably arranged on the lifting rod.
As one embodiment of the utility model, the driving mechanism comprises a speed reducer and a servo motor which are connected, and an output shaft of the speed reducer is connected with a rotating shaft of the pinion.
As an implementation mode of the utility model, the inner side of the clamping block is provided with an arc-shaped clamping groove which is matched with the outer diameter of the foundation pile.
As an embodiment of the present utility model, the first telescopic device, the second telescopic device and the third telescopic device use electric screws or hydraulic rods.
As an embodiment of the present utility model, the lifting mechanism adopts a rodless hydraulic cylinder or a reciprocating screw.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
according to the pile pulling device for building construction, the foundation pile is clamped by the clamping mechanism and then lifted upwards by the first telescopic device, and the pinion can be driven by the driving mechanism to stir the hanging scaffold to rotate in the lifting process, so that the foundation pile is driven to rotate, friction force between the foundation pile and the groove can be reduced, geological damage on the periphery of the foundation pile is small, pile pulling difficulty is reduced, and pile pulling efficiency is improved. Through evenly setting up a plurality of pinion around the platform sling circumference, on the one hand can increase driving force, on the other hand can be spacing to the platform sling, make the platform sling atress balanced, prevent that the platform sling position level from taking place to shift the back and damaging first telescoping device.
The guide post lower extreme liftable is provided with the awl pole, when carrying out the pile pulling, makes the awl pole insert under the earth's surface, can prevent that pile pulling device from taking place the skew at pile pulling in-process position, makes pile pulling process more firm reliable.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of another angular structure of the present utility model.
Fig. 3 is a schematic view of another angle structure of the present utility model.
Fig. 4 is a schematic diagram of the front view structure of the present utility model.
Fig. 5 is a schematic view of the structure of the guide post and the taper rod in the present utility model.
Fig. 6 is a schematic view of yet another construction of the present utility model.
The lifting device comprises a top plate 1, a supporting leg 2, a universal wheel 3, a first telescopic device 4, a lifting rod 5, a lifting plate 6, a lifting disc 7, 8 gear teeth, a mounting plate 9, a guide rod 10, a clamping block 11, a 1101 guide block, a clamping groove 12, a second telescopic device 13, a guide column 14, a sliding groove 1401, a conical rod 15, a sliding block 16, a third telescopic device 17, a mounting plate 18, a limiting block 19, a driving mechanism 20, a pinion 21 and a lifting mechanism 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be clearly and completely described in connection with the following specific embodiments.
The pile pulling device for building construction comprises a top plate 1 and supporting legs 2 arranged below four corners of the top plate 1, wherein a first telescopic device 4 is vertically and fixedly arranged in the center of the top plate 1, a telescopic rod of the first telescopic device 4 penetrates out of the bottom of the top plate 1 and is coaxially connected with a lifting rod 5, a lifting plate 6 is fixedly arranged at the lower end of the lifting rod 5, and a lifting disc 7 and a mounting disc 18 are sequentially arranged above the lifting plate 6 from bottom to top on the lifting rod 5;
Gear teeth 8 are uniformly arranged on the periphery of the hanging scaffold 7 in the circumferential direction, a pinion 21 meshed with the gear teeth 8 is rotatably arranged below the periphery of the mounting scaffold 18, a driving mechanism 20 for driving the pinion 21 to rotate is fixedly arranged above the mounting scaffold 18, two guide posts 14 are vertically arranged in the middle of the left side and the right side of the top plate 1, and a limiting block 19 matched with the distance between the two guide posts 14 on the same side of the top plate 1 is fixedly arranged at the periphery of the mounting scaffold 18 to limit the rotation of the mounting scaffold 18;
the bottom of the hanging scaffold 7 is provided with a clamping mechanism.
According to the pile pulling device for building construction, when the pile is pulled out, the foundation pile is clamped by the clamping mechanism, then the pile is lifted upwards by the first telescopic device 4, and the pinion 21 can be driven by the driving mechanism 20 to stir the hanging scaffold 7 to rotate in the lifting process, so that the foundation pile is driven to rotate, the friction force between the foundation pile and the groove can be reduced, the geological damage on the periphery of the foundation pile is small, the pile pulling difficulty is reduced, and the pile pulling efficiency is improved.
In this embodiment, two vertical mounting plates 9 are symmetrically arranged at the bottom of the hanging scaffold 7, a plurality of guide rods 10 are arranged between the two mounting plates 9, two guide rods 10 are symmetrically arranged between the two mounting plates 9 in this embodiment, two clamping blocks 11 are fixedly arranged at the tops of the clamping blocks 11, through holes corresponding to the guide rods 10 are formed in the clamping blocks 1101, a second telescopic device 13 is fixedly arranged at the outer side of the mounting plates 9, telescopic rods of the second telescopic device 13 penetrate out of the inner side of the mounting plates 9 and then are propped against the outer side of the clamping blocks 11, and telescopic rods of the second telescopic device 13 are fixedly connected with the outer sides of the clamping blocks 11.
As shown in fig. 5, a sliding groove 1401 is provided at the bottom of the guide post 14, a sliding block 16 is provided in the sliding groove 1401 and capable of sliding up and down, the upper end of the sliding block 16 is connected with a third telescopic device 17 fixedly arranged at the upper part of the sliding groove 1401, the lower end of the sliding block 16 is connected with the upper end of a conical rod 15 penetrating out from the lower end of the guide post 14, and the lower end of the conical rod 15 is in a pointed cone shape. The guide post 14 lower extreme liftable is provided with awl pole 15, when carrying out the pile pulling, makes awl pole 15 insert under the earth's surface, can prevent that pile pulling device from taking place the skew at pile pulling in-process position, makes pile pulling process more firm reliable.
As shown in fig. 6, a lifting mechanism 22 is fixedly arranged between the two guide posts 14 on the same side of the top plate 1 along the vertical direction, a moving block of the lifting mechanism is fixedly connected with a limiting block 19, and the lifting mechanism and the first telescopic device 4 are lifted synchronously. Through setting up elevating system 22, can drive mounting panel 18 edge and go up and down, share the lifting pressure of first telescoping device 4 to a certain extent, keep the holistic levelness of mounting panel 18 simultaneously, prevent that the mounting panel 18 outer fringe from taking place to sag under the action of gravity.
As a further optimization, at least two pinion gears 21 are uniformly arranged circumferentially below the mounting plate 18, and a plurality of pinion gears 21 synchronously rotate, in this embodiment, two pinion gears 21 are arranged and are respectively located at inner positions of the two limiting blocks 19. By uniformly arranging the plurality of pinion gears 21 around the hanging scaffold 7 in the circumferential direction, the driving force can be increased, the hanging scaffold 7 can be limited on the one hand, the hanging scaffold 7 can be balanced in stress, and the first telescopic device 4 is prevented from being damaged after the horizontal deviation of the hanging scaffold 7 position occurs.
The universal wheels 3 with brake pads are arranged at the bottoms of the supporting legs 2, so that the pile pulling device can be conveniently moved.
The rotatable cover of hanging scaffold 7 is established on lifting rod 5, the fixed or activity setting of mounting disc 18 can on lifting rod 5, and is preferred, the mounting disc 18 activity sets up on lifting rod 5, and the via hole of seting up in the middle part of mounting disc 18 is greater than lifting rod 5's external diameter promptly, and the dismantlement maintenance of whole device of being convenient for.
As a further optimization, bearings are arranged between the hanging scaffold 7 and the lifting rod 5, the hanging plate 6 and the mounting plate 18, so as to reduce the friction force of rotation of the hanging scaffold 7.
In this embodiment, the driving mechanism 20 includes a speed reducer and a servo motor, which are connected, and an output shaft of the speed reducer is connected to a rotating shaft of the pinion 21. An arc-shaped clamping groove 12 matched with the outer diameter of the foundation pile is formed in the inner side of the clamping block 11. The first telescopic device 4, the second telescopic device 13 and the third telescopic device 17 adopt electric screw rods or hydraulic rods. The lifting mechanism adopts a rodless hydraulic cylinder or a reciprocating screw rod.
Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.