Rapid pulling-out equipment for pile casing

Abstract

The utility model relates to the technical field of highway bridge construction equipment, and discloses pile casing rapid pulling-out equipment which comprises a movable bottom frame, a supporting frame is arranged on the bottom frame, an extending frame is fixed to one side of the supporting frame, a lifting frame is arranged below the extending frame, and four hooks for hanging a pile casing are arranged at the bottom of the lifting frame; the bottom limiting component is used for guiding and conveying the pile casing, and the bottom limiting component comprises a limiting frame arranged above the bottom frame; through the arrangement of the bottom limiting component, the pile casing can be clamped and limited, so that the problems that after the pile casing is pulled out of a hole pile of a highway bridge, the bottom of the pile casing is lack of limiting and shakes are solved, stable pulling out of the pile casing is facilitated, the problem that the gravity center of equipment is unstable and topples over can be solved, stable operation of the equipment is guaranteed, and the service life of the equipment is prolonged. And therefore, the pulling efficiency of the pile casing is greatly improved, and rapid pulling of the pile casing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway bridge construction equipment, in particular to a casing quick-removing device. Background Art

[0002] In the construction of highway bridges, bored piles are usually built first, and then the highway bridge is erected and built. In order to prevent the pile foundation from being too long and the soil from being unstable, steel casings are generally used to protect the bored piles to prevent the hole from collapsing and avoid affecting the construction progress and safety of the highway bridge. After the construction of the highway bridge, the steel casing usually needs to be removed by removal equipment to complete the construction of the highway bridge.

[0003] In the Chinese patent with the announcement number CN218778676U, a special casing quick removal device for highway bridge pile foundation construction is disclosed. A hook is hung on the casing, and the power is turned on by the winch, so that the winch works to reel in the wire rope. In the process of reeling in the wire rope, the wire rope is guided by the guide groove arranged on the guide wheel, and the guide roller arranged on the bracket is used to roll with the reeling of the wire rope, and the structural strength of the circular hanger is improved by the cross support frame, so that the hook drags the casing upward, and the casing can be directly removed, which is very convenient to operate. However, in the actual use of the above-mentioned casing quick removal device, when the casing is removed from the hole pile of the highway bridge, the casing loses its restriction and lacks a limit, so that the casing is easy to shake when the circular hanger lifts the casing, resulting in poor stability when the casing is removed, which is not conducive to the stable removal of the casing, and even causes the center of gravity of the equipment to be unstable and tip over, thereby affecting the removal efficiency of the casing. Utility Model Content

[0004] The utility model provides a quick casing removal device to solve the problem that the casing is easy to shake when the existing circular hanger lifts the casing, resulting in poor stability when the casing is removed, which is not conducive to the stable removal of the casing and even causes the center of gravity of the device to be unstable and tip over, affecting the efficiency of casing removal.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casing quick removal device, comprising:

[0006] A movable base frame, on which a support frame is arranged, and an extension frame is fixed on one side of the support frame, a lifting frame is arranged below the extension frame, and four hooks for hanging the casing are arranged at the bottom of the lifting frame, and a power member for driving the lifting frame to rise and fall is also arranged on the base frame; a controller and a power supply are also arranged on the base frame, and a counterweight is installed at the bottom of the base frame to ensure the center of gravity of the equipment and facilitate the stable operation of the equipment;

[0007] A bottom limiting member is used to guide the casing, and the bottom limiting member includes a limiting frame arranged above the base frame, the limiting frame is connected to a driving member that drives it to move horizontally back and forth, and the limiting frame forms an arc-shaped notch relative to one side of the driving member, a second fixed frame and two first fixed frames are arranged in the arc-shaped notch, and the second fixed frame and the two first fixed frames are respectively rotatably installed with a second roller and a first roller.

[0008] Preferably, an elastic member connecting the second fixed frame and the two first fixed frames is also provided in the arc-shaped groove, and the elastic member includes a second spring connected between the second fixed frame and the inner wall of the arc-shaped groove and a first spring connected between the two first fixed frames and the inner wall of the arc-shaped groove. Pull rods are inserted on both sides of the limit frame, and one end of the two pull rods extends into the arc-shaped groove and is fixedly connected to the two first fixed frames respectively. A retractable linkage rod is also connected between the second fixed frame and the limit frame to ensure stable retraction and extension of the second spring.

[0009] Preferably, the lifting frame is also provided with an adjusting component for adjusting the position of four hooks, the adjusting component includes a through hole opened in the middle of the lifting frame and a reinforcement frame fixed in the through hole, the outer wall of the lifting frame is screwed with adjusting screws on all four sides, and the four adjusting screws are sleeved with moving blocks, the four hooks are respectively installed at the bottom ends of the four moving blocks, and the reinforcement frame is provided with grooves for the four moving blocks to slide, one ends of the four adjusting screws respectively extend into the corresponding grooves and are rotatably connected to the inner wall of the reinforcement frame, and the bottom of the reinforcement frame is provided with a notch connected to the groove, so as to facilitate the moving block to drive the hook to move.

[0010] Preferably, the driving member includes a mounting plate and an electric push rod fixed on one side of the mounting plate, the telescopic end of the electric push rod is fixedly connected to one side of the limit frame, and two telescopic reinforcing rods are connected between the limit frame and the support frame, and the two reinforcing rods are symmetrically distributed on both sides of the mounting plate. The two reinforcing rods can increase the stability between the limit frame and the support frame, which is beneficial to the stable movement of the limit frame.

[0011] Preferably, the power component includes an electric hoist, a guide wheel fixed to the middle part of the top end of the support frame, and a guide roller rotatably installed at one end of the extension frame. The electric hoist is connected to a steel wire rope, and one end of the steel wire rope is sequentially wound around the guide wheel and the guide roller, and fixedly connected to the reinforcement frame. A concave cavity is provided on the guide wheel and the guide roller, and the steel wire rope can be stuck into the concave cavity to limit the steel wire rope and facilitate the stable retraction and release of the steel wire rope.

[0012] Preferably, the base frame is also provided with a rotating component for driving the lifting frame to rotate, and the rotating component includes a rotating table rotatably installed on the top of the base frame and a chassis fixed to the bottom of the base frame, a motor is installed in the chassis, and a main gear is installed on the main shaft of the motor, a transmission shaft is fixed to the bottom end of the rotating table, and the bottom end of the transmission shaft extends into the chassis and is installed with a sub-gear meshing with the main gear, and the support frame, rotating table and mounting plate are installed on the top of the rotating table in sequence from left to right.

[0013] Preferably, guide bars are installed on both sides of the moving block, and guide grooves matching the guide bars are opened on both sides of the inner wall of the groove cavity, which can limit the sliding of the moving block and facilitate the stable sliding of the moving block along the groove cavity.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] (1) By setting the bottom limiting component, the casing can be clamped and limited, so as to avoid the problem of shaking caused by lack of limit at the bottom of the casing after it is pulled out from the pile of the highway bridge, which is conducive to the stable removal of the casing and can prevent the problem of tipping due to the unstable center of gravity of the equipment, thereby ensuring the stable operation of the equipment, thereby greatly improving the removal efficiency of the casing and realizing the rapid removal of the casing;

[0016] (2) By providing the elastic member and the adjusting member, the bottom limiting member can be used for removing casings of different diameters, thereby greatly increasing the applicable scope of the removal device and facilitating the rapid removal of casings of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0019] Figure 2 This is the second structural diagram of the utility model;

[0020] Figure 3 It is a partial cross-sectional view of the chassis of the utility model;

[0021] Figure 4 It is a partial cross-sectional view of the lifting frame of the utility model;

[0022] Figure 5This is a schematic diagram of the structure of the bottom limiting component of the utility model;

[0023] In the figure: 1. base frame; 2. support frame; 3. rotating table; 4. electric hoist; 5. guide wheel; 6. extension frame; 7. guide roller; 8. lifting frame; 9. adjusting member; 91. adjusting screw; 92. moving block; 10. hook; 11. bottom limiting member; 111. limiting frame; 112. first fixed frame; 113. first rotating roller; 114. first spring; 115. pull rod; 116. second rotating roller; 117. second fixed frame; 118. second spring; 12. electric push rod; 13. chassis; 14. motor; 15. main gear; 16. sub gear; 17. reinforcement frame. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-Figure 5 A casing quick removal device is shown, comprising:

[0026] A movable base frame 1, on which a support frame 2 is arranged, and an extension frame 6 is fixed to one side of the support frame 2, a lifting frame 8 is arranged below the extension frame 6, and four hooks 10 for hanging the casing are arranged at the bottom of the lifting frame 8, and a power part for driving the lifting frame 8 to rise and fall is also arranged on the base frame 1;

[0027] The bottom limiting member 11 is used to guide the casing, and the bottom limiting member 11 includes a limiting frame 111 arranged above the base frame 1, the limiting frame 111 is connected to a driving member that drives it to move horizontally back and forth, and the limiting frame 111 forms an arc-shaped notch relative to one side of the driving member, a second fixed frame 117 and two first fixed frames 112 are arranged in the arc-shaped notch, and the second fixed frame 117 and the two first fixed frames 112 are respectively rotatably installed with a second roller 116 and a first roller 113.

[0028] Specifically, Figure 1 and Figure 2 As shown, the power part includes an electric hoist 4, a guide wheel 5 fixed in the middle of the top end of the support frame 2, and a guide roller 7 rotatably installed at one end of the extension frame 6. The electric hoist 4 is connected to a steel wire rope, and one end of the steel wire rope is sequentially wound around the guide wheel 5 and the guide roller 7, and is fixedly connected to the reinforcement frame 17.

[0029] Specifically, Figure 1 and Figure 2 As shown, the driving member includes a mounting plate and an electric push rod 12 fixed to one side of the mounting plate, the telescopic end of the electric push rod 12 is fixedly connected to one side of the limit frame 111, and two telescopic reinforcing rods are also connected between the limit frame 111 and the support frame 2, and the two reinforcing rods are symmetrically distributed on both sides of the mounting plate.

[0030] When the casing is to be removed, the equipment is moved to the side of the casing to be removed by the movable base frame 1, and then the electric hoist 4 is started by the controller on the base frame 1, so that the electric hoist 4 lowers the wire rope. At this time, the lifting frame 8 descends until the hook 10 descends to the top of the casing, and the casing is hung by the hook 10. Then, the wire rope is reeled in by the electric hoist 4, so that the wire rope lifts the lifting frame 8 under the action of the guide wheel 5 and the guide roller 7, and then the lifting frame 8 pulls the casing upward through the hook 10, so that the casing is removed from the pile of the highway bridge;

[0031] During the process of removing the casing, the electric push rod 12 can be started by the controller on the base frame 1, so that the electric push rod 12 pushes the limit frame 111 to move, so that the first roller 113 and the second roller 116 on the first fixed frame 112 and the second fixed frame 117 are in contact with the outer wall of the casing, and when the lifting frame 8 lifts the casing, the first roller 113 and the second roller 116 rotate accordingly to guide the casing, and after the casing is pulled out from the pile hole of the highway bridge, the first roller 113 and the second roller 116 on the limit frame 111 clamp and limit the casing, thereby avoiding the problem of lack of limit at the bottom of the casing after it is pulled out from the pile hole of the highway bridge and shaking, which is conducive to the stable removal of the casing and improves the removal efficiency.

[0032] Furthermore, if Figure 1-Figure 3 As shown, the base frame 1 is also provided with a rotating component that drives the lifting frame 8 to rotate, and the rotating component includes a rotating table 3 rotatably installed on the top of the base frame 1 and a chassis 13 fixed to the bottom of the base frame 1, a motor 14 is installed in the chassis 13, and a main gear 15 is installed on the main shaft of the motor 14, a transmission shaft is fixed to the bottom end of the rotating table 3, and the bottom end of the transmission shaft extends into the chassis 13, and a sub-gear 16 meshing with the main gear 15 is installed, and the support frame 2, the rotating table 3 and the mounting plate are installed on the top of the rotating table 3 from left to right.

[0033] During the process of removing the casing, the direction of the lifting frame 8 can be adjusted according to the construction requirements, that is, the motor 14 is started by the controller on the base frame 1, so that the motor 14 drives the main gear 15 to rotate, and then the main gear 15 drives the sub-gear 16 meshing with it to rotate, so that the sub-gear 16 drives the transmission shaft to rotate, and then the transmission shaft drives the rotating table 3 to rotate, so that the rotating table 3 drives the support frame 2 to rotate, thereby realizing the rotation of the lifting frame 8, facilitating the reversal of the lifting frame 8, and then facilitating the removal of casings at different positions, further improving the removal efficiency.

[0034] In addition, in one embodiment, if Figure 1 , Figure 2 and Figure 5 As shown, an elastic member connecting the second fixed frame 117 and the two first fixed frames 112 is also provided in the arc-shaped groove, and the elastic member includes a second spring 118 connected between the second fixed frame 117 and the inner wall of the arc-shaped groove and a first spring 114 connected between the two first fixed frames 112 and the inner wall of the arc-shaped groove. Pull rods 115 are inserted on both sides of the limit frame 111, and one end of the two pull rods 115 extends into the arc-shaped groove and is fixedly connected to the two first fixed frames 112 respectively.

[0035] Furthermore, if Figure 1 , Figure 2 and Figure 4 As shown, the lifting frame 8 is also provided with an adjusting component 9 for adjusting the position of the four hooks 10. The adjusting component 9 includes a through hole opened in the middle of the lifting frame 8 and a reinforcement frame 17 fixed in the through hole. The outer wall of the lifting frame 8 is screwed with adjusting screws 91 all around, and the four adjusting screws 91 are sleeved with moving blocks 92. The four hooks 10 are respectively installed at the bottom ends of the four moving blocks 92. The reinforcement frame 17 is provided with grooves for the four moving blocks 92 to slide. One ends of the four adjusting screws 91 extend into the corresponding grooves respectively and are rotatably connected to the inner wall of the reinforcement frame 17; guide bars are installed on both sides of the moving block 92, and guide grooves matching the guide bars are provided on both sides of the inner wall of the groove.

[0036] When the casing is removed, the position of the hook 10 can be adjusted according to the diameter of the casing, that is, by rotating the adjusting screw 91, the adjusting screw 91 drives the moving block 92 to slide along the groove cavity in the reinforcement frame 17, and then the moving block 92 drives the four hooks 10 to move closer or farther from each other, so that the positions of the four hooks 10 correspond to the diameter of the casing, and then the casing is hung by the hook 10, and the pull rod 115 can be pulled to drive the first fixed frame 112 to move. When the electric push rod 12 drives the limiting frame 111 to be sleeved on the outside of the casing, the casing contacts the second roller 11 6, so that the second roller 116 contracts by squeezing the second spring 118 through the second fixed frame 117, and then the pull rod 115 is released. At this time, the first spring 114 pushes the first fixed frame 112 to return to its original position, so that the first roller 113 in the first fixed frame 112 contacts the outer wall of the casing, and then when the lifting frame 8 lifts and removes the casing, the first roller 113 and the second roller 116 guide the casing, so that the bottom limiting member 11 can be suitable for the removal of casings of different diameters, thereby increasing the application range of the removal equipment and facilitating the rapid removal of casings of different diameters.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A casing quick removal device, characterized in that: include: A movable base frame (1), wherein a support frame (2) is arranged on the base frame (1), and an extension frame (6) is fixed to one side of the support frame (2), a lifting frame (8) is arranged below the extension frame (6), and four hooks (10) for hanging the casing are arranged at the bottom of the lifting frame (8), and a power component for driving the lifting frame (8) to rise and fall is also arranged on the base frame (1); A bottom limiting component (11) is used to guide the casing, and the bottom limiting component (11) comprises a limiting frame (111) arranged above the base frame (1), the limiting frame (111) is connected to a driving member driving it to move horizontally back and forth, and an arc-shaped notch is formed on one side of the limiting frame (111) relative to the driving member, a second fixed frame (117) and two first fixed frames (112) are arranged in the arc-shaped notch, and a second rotating roller (116) and a first rotating roller (113) are rotatably installed in the second fixed frame (117) and the two first fixed frames (112), respectively.

2. A casing quick removal device according to claim 1, characterized in that: An elastic member connecting the second fixing frame (117) and the two first fixing frames (112) is also provided in the arc-shaped groove, and the elastic member includes a second spring (118) connected between the second fixing frame (117) and the inner wall of the arc-shaped groove, and a first spring (114) connected between the two first fixing frames (112) and the inner wall of the arc-shaped groove. Pull rods (115) are inserted on both sides of the limit frame (111), and one end of the two pull rods (115) extends into the arc-shaped groove and is fixedly connected to the two first fixing frames (112) respectively.

3. A casing quick removal device according to claim 1, characterized in that: The lifting frame (8) is also provided with an adjusting component (9) for adjusting the position of the four hooks (10), and the adjusting component (9) includes a through hole opened in the middle of the lifting frame (8) and a reinforcement frame (17) fixed in the through hole. The outer wall of the lifting frame (8) is screwed with adjusting screws (91) on all sides, and the four adjusting screws (91) are sleeved with moving blocks (92). The four hooks (10) are respectively installed at the bottom ends of the four moving blocks (92). The reinforcement frame (17) is provided with grooves for the four moving blocks (92) to slide. One end of the four adjusting screws (91) respectively extends into the corresponding grooves and is rotatably connected to the inner wall of the reinforcement frame (17).

4. A casing quick removal device according to claim 1, characterized in that: The driving member comprises a mounting plate and an electric push rod (12) fixed to one side of the mounting plate, the telescopic end of the electric push rod (12) being fixedly connected to one side of a limit frame (111), and two telescopic reinforcing rods being connected between the limit frame (111) and the support frame (2), and the two reinforcing rods being symmetrically distributed on both sides of the mounting plate.

5. The casing quick removal device according to claim 3, characterized in that: The power component comprises an electric hoist (4), a guide wheel (5) fixed at the middle of the top end of the support frame (2), and a guide roller (7) rotatably mounted on one end of the extension frame (6); the electric hoist (4) is connected to a steel wire rope, and one end of the steel wire rope is sequentially wound around the guide wheel (5) and the guide roller (7) and fixedly connected to the reinforcement frame (17).

6. A casing quick removal device according to claim 4, characterized in that: The base frame (1) is also provided with a rotating component for driving the lifting frame (8) to rotate, and the rotating component includes a rotating table (3) rotatably mounted on the top of the base frame (1) and a chassis (13) fixed to the bottom of the base frame (1), a motor (14) is installed in the chassis (13), and a main gear (15) is installed on the main shaft of the motor (14), a transmission shaft is fixed at the bottom end of the rotating table (3), and the bottom end of the transmission shaft extends into the chassis (13) and is installed with a sub-gear (16) meshing with the main gear (15), and the support frame (2), the rotating table (3) and the mounting plate are sequentially installed on the top of the rotating table (3) from left to right.

7. A casing quick removal device according to claim 3, characterized in that: Guide strips are installed on both sides of the moving block (92), and guide grooves matching the guide strips are opened on both sides of the inner wall of the groove cavity.

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