Automatic cage unloading device for detachable pile foundation reinforcement cage and automatic cage unloading control method

Abstract

The invention provides an automatic cage unloading device for a detachable pile foundation reinforcement cage and an automatic cage unloading control method.The automatic cage unloading device comprises a supporting base, and the supporting base is provided with a cage loading assembly used for lifting the reinforcement cage and conveying the reinforcement cage to the other end of the supporting base for hoisting; the cage fixing assembly is used for being aligned with a pile hole during cage descending and fixing the reinforcement cage descending into the pile hole; the positioning assembly is arranged on the side, away from the cage feeding assembly, of the cage fixing assembly, the positioning assembly has a first state and a second state, and when the positioning assembly is in the first state, the positioning assembly assists the reinforcement cage to be conveyed in the extending direction of the supporting base; in the second state, the positioning assembly vertically lifts the reinforcement cage in the direction perpendicular to the extending direction of the supporting base; and the cage unloading assembly is used for hoisting the reinforcement cage and unloading the cage when the positioning assembly is in the second state. According to the automatic cage unloading device, the overall operation efficiency is effectively improved, personal errors are reduced, and the safety risk of constructors is effectively reduced.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of building construction, and particularly relates to a detachable automatic cage-lowering device for a pile foundation steel cage and an automatic cage-lowering control method. Background Art

[0002] In modern construction projects, pile foundations, as an important foundation engineering structure, are widely used in the construction of high-rise buildings, bridges, docks and other projects. The main function of a pile foundation is to transfer the load of the upper structure through the pile body to deeper soil layers or rock formations, thereby improving the stability and bearing capacity of the building. A pile foundation usually consists of a pile body and a pile top part. Among them, the steel cage, as an important component of the pile foundation, is responsible for bearing the internal force of the pile body and ensuring the overall strength and stability of the pile body. The steel cage is usually assembled and lowered at the construction site. In the actual construction process, the lowering process of the steel cage is one of the key links in pile foundation construction, directly affecting the construction quality and progress of the pile foundation.

[0003] Since the steel cage is usually a large and heavy structure, with large size and weight, it is difficult to operate and has high requirements for construction personnel and equipment. Traditional cage-lowering methods mostly rely on manual operation or simple lifting equipment, with problems such as low efficiency and dangerous operation. Summary of the Invention

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide a detachable automatic cage-lowering device for a pile foundation steel cage and an automatic cage-lowering control method to solve the above problems.

[0005] The first aspect of the present application provides a detachable automatic cage-lowering device for a pile foundation steel cage, including a support base, the support base includes a plurality of support units, and the plurality of support units are detachably connected along the extension direction of the support base. The support base is provided with: An upper cage component, which is installed at one end of the support base, and is used to lift the steel cage and send the steel cage to the other end of the support base for hoisting; A cage-fixing component, which is used to align with the pile hole during cage-lowering and fix the steel cage lowered into the pile hole; A positioning component, which is arranged on the side of the cage-fixing component away from the upper cage component. The positioning component includes a first state and a second state. When in the first state, the positioning component assists the steel cage to be conveyed along the extension direction of the support base; when in the second state, the positioning component vertically lifts the steel cage along the direction perpendicular to the extension of the support base; A cage-lowering component, which is arranged at the end of the positioning component away from the cage-fixing component, and is used to hoist the steel cage and lower the cage when the positioning component is in the second state.

[0006] According to the technical solution provided by the embodiment of the present application, the upper cage assembly includes: A support platform for supporting the steel cage. A conveyor belt for conveying the steel cage is provided on the surface of the support platform. First protrusions are provided on the surface of the conveyor belt. Arc-shaped retaining rods are respectively provided on both sides of the support platform; A plurality of rotating rods are respectively provided on both sides of the support platform. One end of the rotating rod is hinged to the side wall of the support platform, and the other end is hinged to the support base; A first driving device for driving the relative rotation of the rotating rod and the support base.

[0007] According to the technical solution provided by the embodiment of the present application, the steel cage fixing assembly includes: A pair of first clamps movably installed on the support base. The first clamps are arc-shaped and a pair of the first clamps are arranged oppositely to form a ring-shaped clamp. The pair of first clamps can approach or move away from each other; A plurality of second protrusions are provided on the inner side of the first clamps.

[0008] According to the technical solution provided by the embodiment of the present application, the positioning assembly includes: A positioning support rod. One end of the positioning support rod close to the steel cage fixing assembly is connected to the support base through a second driving device. A support foot is provided at the other end of the positioning support rod. The positioning support rod includes a plurality of detachably connected positioning units; the second driving device is used to drive the rotation of the positioning support rod so that the positioning assembly switches between the first state and the second state; A positioning mechanism installed on the positioning support rod. The positioning mechanism is used to assist the conveyance of the steel cage when the positioning assembly is in the first state and to clamp and fix the steel cage when the positioning assembly is in the second state.

[0009] According to the technical solution provided by the embodiment of the present application, the positioning mechanism includes: A plurality of clamping devices arranged along the extending direction of the positioning support rod on the positioning support rod. Each clamping device includes a fixed seat and a pair of second clamps provided on the fixed seat. The second clamps are arc-shaped and each pair of the second clamps forms a ring-shaped clamp for the steel cage to pass through; A driving assembly installed on the positioning support rod through a plurality of the fixed seats. The driving assembly is in transmission connection with the second clamps and is used to drive the opening or clamping of multiple pairs of the second clamps.

[0010] According to the technical solution provided by the embodiment of the present application, the driving assembly includes: A fixed rod, the fixed rod penetrates through the fixed seat and is fixed on the fixed seat. A toothed rod is rotatably installed inside the fixed rod, and a third driving device is installed at the end of the fixed rod, and the third driving device is used to drive the toothed rod to rotate; A plurality of transmission racks, the transmission racks are engaged with the toothed rod and one end is fixed to the second fixture; A plurality of pairs of transmission gears, each pair of transmission gears is rotatably installed on the corresponding fixed seat and meshes with each other, and each pair of transmission gears is fixed to a corresponding pair of second fixtures.

[0011] According to the technical solution provided by the embodiment of the present application, a plurality of rollers are provided on the second fixture, and the rollers are used to assist in the transmission of the steel reinforcement cage when the second fixture is opened; a plurality of third protrusions are also provided on the second fixture, and the third protrusions are used to assist in fixing the steel reinforcement cage when the second fixture is clamped.

[0012] According to the technical solution provided by the embodiment of the present application, the lower cage assembly includes: A fixing plate, the fixing plate is installed at one end of the positioning support rod away from the steel reinforcement cage fixing assembly; A clamping mechanism, the clamping mechanism includes a mounting seat and a fourth driving device, a pair of adjusting racks and a pair of hooks installed on the mounting seat; the adjusting racks are slidably installed on the mounting seat and meshed with the output shaft of the fourth driving device, and the hooks are fixed to the corresponding adjusting racks, and the hooks are used for hoisting the steel reinforcement cage, and the fourth driving device is used to adjust the distance between a pair of hooks; A hoisting mechanism, the hoisting mechanism is installed on the fixing plate and connected to the mounting seat, and the hoisting mechanism is used to drive the fixing plate to lift and lower.

[0013] According to the technical solution provided by the embodiment of the present application, the hoisting mechanism includes: A disc, a plurality of wire rope reels are installed on the disc, and one end of the wire rope reel is fixed to the mounting seat; A circular tooth rail, the circular tooth rail is arranged on the fixing plate; A plurality of support rods, one end of the support rod is fixed to the disc, and the other end is provided with a transmission rod that can rotate relative to the support rod, and the transmission rod meshes with the circular tooth rail; A fifth driving device, the fifth driving device is used to drive the transmission rod to rotate so that the disc rotates relative to the fixing plate.

[0014] The second aspect of the present application provides an automatic lower cage control method, based on the detachable pile foundation steel reinforcement cage automatic lower cage device as described above, the method includes: S1: Control the positioning component to be in the first state and control the upper cage component to descend; S2: When one end of the steel reinforcement cage is placed on the upper cage component, control the upper cage component to lift the steel reinforcement cage, and control the upper cage component to convey the steel reinforcement cage through the positioning component to the other end of the support base; S3: Control the lower cage component to grab the steel reinforcement cage; S4: Control the positioning component to switch to the second state so that the steel reinforcement cage is aligned with the pile hole; S5: Control the lower cage component to lower the steel reinforcement cage, and when the steel reinforcement cage is lowered into the pile hole, control the cage fixing component to fix the tail end of the steel reinforcement cage; S6: Repeat the above steps S1 - S4 to align the front end of the steel reinforcement cage not placed in the pile hole with the tail end of the steel reinforcement cage lowered into the pile hole, so as to facilitate the welding of the steel reinforcement cages.

[0015] Compared with the prior art, the beneficial effects of the present application are as follows: By providing a support base composed of multiple support units, the length of the support base can be adaptively adjusted according to the length of the steel reinforcement cage, improving the stability of the automatic cage lowering device during placement, and the detachable structure is convenient for transportation and storage; By providing an upper cage component, the upper cage component can lift the steel reinforcement cage from the ground to the automatic cage lowering device and can move the steel reinforcement cage on the automatic cage lowering device to facilitate the hoisting of the steel reinforcement cage; By providing a positioning component, on the one hand, it can guide the movement of the steel reinforcement cage on the automatic cage lowering device, and on the other hand, it can also clamp and fix the steel reinforcement cage and lift it vertically to facilitate cage lowering. In addition, the positioning component can also accurately align the steel reinforcement cage with the pile hole position, improving the accuracy of cage lowering; By providing a lower cage component, automatic cage lowering can be performed after the positioning component lifts the steel reinforcement cage. Since the lower cage component is installed on the positioning component, accurate cage lowering can be ensured during cage lowering; By providing a cage fixing component, when the lower cage component aligns with the pile hole during cage lowering of the steel reinforcement cage, the cage fixing component can fix the steel reinforcement cage already placed in the pile hole, thereby facilitating the welding and fixing of the steel reinforcement cage outside the pile hole and the steel reinforcement cage in the pile hole. The automatic cage lowering device provided by the present application has a high degree of automation, reduces manual participation, improves operation efficiency, reduces human errors, reduces the safety risks of construction workers, and can accurately position the steel reinforcement cage during cage lowering, improving the accuracy of the position of the steel reinforcement cage during cage lowering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non - restrictive embodiments with reference to the following drawings: Figure 1 It is a schematic structural diagram of the detachable pile foundation steel reinforcement cage automatic cage lowering device provided by the present application; Figure 2 It is a schematic structural diagram of the upper cage assembly; Figure 3 It is a schematic structural diagram of the cage fixing assembly; Figure 4 It is a schematic arrangement diagram of the clamping device on the positioning support rod; Figure 5 It is a schematic structural diagram of the driving assembly; Figure 6 It is a schematic structural diagram of the lower cage assembly; Figure 7 It is a schematic structural diagram of the clamping mechanism; Figure 8 It is a schematic structural diagram of the hoisting mechanism.

[0017] Appended drawing reference numerals: 100, support base; 110, long straight rod; 101, support unit; 200, upper cage assembly; 210, support platform; 220, conveyor belt; 221, first protrusion; 230, arc-shaped baffle; 240, rotating rod; 250, first driving device; 300, cage fixing assembly; 310, first clamp; 320, second protrusion; 400, positioning assembly; 410, positioning support rod; 411, positioning unit; 420, second driving device; 421, bearing plate; 422, support plate; 430, positioning mechanism; 440, clamping device; 441, fixed seat; 442, second clamp; 443, roller; 444, third protrusion; 450, driving assembly; 451, fixed rod; 452, toothed rod; 453, third driving device; 454, transmission rack; 455, transmission gear; 460, support leg; 500, lower cage assembly; 510, fixing plate; 520, clamping mechanism; 521, mounting seat; 522, fourth driving device; 523, adjusting rack; 524, grab hook; 530, hoisting mechanism; 531, disc; 532, wire rope reel; 533, circular toothed rail; 534, support rod; 535, transmission rod; 536, fifth driving device; 540, connecting rod. Specific embodiments

[0018] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0019] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0020] Embodiment 1 Please refer to Figures 1-8, this embodiment provides a detachable automatic cage-lowering device for pile foundation reinforcement cages, including a support base 100. The support base 100 includes a plurality of support units 101, and the plurality of support units 101 are detachably connected along the extending direction of the support base 100. The support base 100 is provided with: An upper cage assembly 200, which is installed at one end of the support base 100 and is used to lift the reinforcement cage and send the reinforcement cage to the other end of the support base 100 for hoisting; A cage-fixing assembly 300, which is used to align with the pile hole during cage lowering and fix the reinforcement cage lowered into the pile hole; A positioning assembly 400, which is arranged on the side of the cage-fixing assembly 300 away from the upper cage assembly 200. The positioning assembly 400 includes a first state and a second state. When in the first state, the positioning assembly 400 assists the reinforcement cage to be conveyed along the extending direction of the support base 100; when in the second state, the positioning assembly 400 vertically lifts the reinforcement cage along the direction perpendicular to the extension of the support base 100; A cage-lowering assembly 500, which is arranged at the end of the positioning assembly 400 away from the cage-fixing assembly 300. The cage-lowering assembly 500 is used to hoist the reinforcement cage and lower the cage when the positioning assembly 400 is in the second state.

[0021] Specifically, as Figure 1 and Figure 2 shown, the support base 100 is composed of two long straight rods 110, and the two long straight rods 110 are parallel to each other for placing on the ground. Each long straight rod 110 is composed of a plurality of support units 101. The support unit 101 is a straight sleeve with a shorter length. The length of the long straight rod 110 is increased by the way of mutual socket fixation of a plurality of straight sleeves, and then the extending length of the support base 100 is increased to adapt to reinforcement cages of different lengths. For a longer reinforcement cage, increasing the length of the support base 100 can improve the stability of the device during cage lowering.

[0022] The upper cage assembly 200 is arranged at one end of the support base 100. The upper cage assembly 200 can be automatically lifted and lowered. By lowering to a lower position, it is convenient to place the reinforcement cage on the upper cage assembly 200. After the reinforcement cage is placed on the upper cage assembly 200, the upper cage assembly 200 lifts the reinforcement cage onto the automatic cage-lowering device by raising the position; and the upper cage assembly 200 can also drive the reinforcement cage so that the reinforcement cage can be conveyed to the other end of the support base 100 for hoisting. The entire lifting and conveying process does not require manual participation.

[0023] The cage fixing assembly 300 is installed on the side of the upper cage assembly 200 close to the side where the steel reinforcement cage is to be hoisted. The cage fixing assembly 300 is arranged between two long straight rods 110. During construction at the construction site, the two long straight rods 110 are erected on the ground on both sides of the pile hole. The cage fixing assembly 300 is aligned with the position of the pile hole. After each section of the steel reinforcement cage is lowered into the pile hole, the steel reinforcement cage in the pile hole can be fixed through the cage fixing assembly 300. Thus, before hoisting the next section of the steel reinforcement cage and lowering it into the pile hole, it is convenient to weld the front and rear sections of the steel reinforcement cage. During the welding process, the steel reinforcement cage can be prevented from shaking, improving the stability during welding.

[0024] The positioning assembly 400 is installed on the side of the cage fixing assembly 300 away from the upper cage assembly 200. The positioning assembly 400 is arranged between the two long straight rods 110 and above the two long straight rods 110. One end of the positioning assembly 400 close to the cage fixing assembly 300 can rotate relative to the support base 100. During the relative rotation of the positioning assembly 400 and the support base 100, there are a first state and a second state. When in the first state, the positioning assembly 400 is in the same extension direction as the long straight rod 110, and the height of the positioning assembly 400 is close to the height after the upper cage assembly 200 is raised, so as to facilitate supporting the steel reinforcement cage conveyed from the upper cage assembly 200 to the hoisting position and guiding the conveyance of the steel reinforcement cage; when in the second state, the positioning assembly 400 can fix the steel reinforcement cage and is placed in a position perpendicular to the extension direction of the long straight rod 110, so as to place the steel reinforcement cage vertically. After the steel reinforcement cage is vertically placed, its position is aligned with the cage fixing assembly 300, facilitating the subsequent hoisting of the steel reinforcement cage and lowering it into the pile hole.

[0025] The lower cage assembly 500 is installed at one end of the positioning assembly 400 away from the cage fixing assembly 300. The lower cage assembly 500 can hoist the steel reinforcement cage when the positioning assembly 400 is in the second state. After the positioning assembly 400 releases the fixation of the steel reinforcement cage, the lower cage assembly 500 can lower the steel reinforcement cage into the pile hole.

[0026] The automatic cage lowering device provided by the present application rarely requires manual intervention during the entire working process. Construction workers only need to weld at the connection position of two sections of the steel reinforcement cage, and the rest of the process is completed by the device itself, improving the operation efficiency, reducing the errors caused by manual participation, and reducing the safety risks of construction workers; moreover, by the device working automatically for cage lowering, it can effectively ensure the accuracy of the position of the steel reinforcement cage when it is lowered into the pile hole, improving the cage lowering accuracy.

[0027] Further, the upper cage assembly 200 includes: A support platform 210 for supporting a steel reinforcement cage. A conveyor belt 220 for conveying the steel reinforcement cage is provided on the surface of the support platform 210. First protrusions 221 are provided on the surface of the conveyor belt 220. Arc-shaped retaining bars 230 are respectively provided on both sides of the support platform 210; A plurality of rotating rods 240 are respectively provided on both sides of the support platform 210. One end of the rotating rod 240 is hinged to the side wall of the support platform 210, and the other end is hinged to the support base 100; A first driving device 250 for driving the relative rotation of the rotating rod 240 and the support base 100.

[0028] Specifically, as Figure 2 shown, the upper cage assembly 200 mainly includes a support platform 210. The support platform 210 is a flat plate parallel to the two long straight rods 110. Two rotating rods 240 are respectively provided on both sides of the support platform 210. One end of the rotating rod 240 is hinged to the support platform 210, and the other end is hinged to the corresponding long straight rod 110 on the same side. The rotating rod 240 can be driven by the first driving device 250 to rotate relative to the long straight rod 110. When the rotating rod 240 rotates, it can drive the support platform 210 to rise and fall. Optionally, the first driving device 250 is a driving motor; by lowering the support platform 210, it is convenient to place the steel reinforcement cage, and then raising the support platform 210 for upper cage operation; in order to improve the stability of the steel reinforcement cage when the support platform 210 is used for upper cage, two arc-shaped retaining bars 230 are respectively provided on both sides of the support platform 210. The arc-shaped retaining bars 230 play a role in limiting the steel reinforcement cage to prevent the steel reinforcement cage from falling off the support platform 210.

[0029] A conveyor belt 220 is provided on the surface of the support platform 210. When the steel reinforcement cage is placed on the support platform 210, the conveyor belt 220 can drive the steel reinforcement cage through its conveying action to realize the conveying of the steel reinforcement cage; in order to improve the conveying efficiency of the steel reinforcement cage, a plurality of first protrusions 221 are provided on the surface of the conveyor belt 220. The first protrusions 221 are metal protrusions, which can contact the steel reinforcement cage during the conveying process of the conveyor belt 220, increasing the friction between the steel reinforcement cage and the conveyor belt 220 and preventing the steel reinforcement cage and the conveyor belt 220 from sliding relative to each other and affecting the conveying efficiency.

[0030] Furthermore, the steel reinforcement cage fixing assembly 300 includes: A pair of first clamps 310, which are movably installed on the support base 100. The first clamps 310 are arc-shaped and the pair of first clamps 310 are arranged oppositely to form a circular clamp. The pair of first clamps 310 can approach or move away from each other; A plurality of second protrusions 320 are provided on the inner side of the first clamps 310.

[0031] Specifically, as Figure 3 shown, the first fixture 310 is arc-shaped. A pair of first fixtures 310 are respectively movably installed on two long straight rods 110. The first fixture 310 can move in a horizontal direction perpendicular to the extension of the long straight rod 110, so that a pair of first fixtures 310 can approach or move away from each other. When the steel cage needs to be lowered into the pile hole, control a pair of first fixtures 310 to move away from each other to avoid affecting the lowering of the steel cage. After the steel cage is lowered into the pile hole and before the cage lowering assembly 500 releases the steel cage, control a pair of first fixtures 310 to approach each other to clamp the steel cage, so as to fix the steel cage, and further ensure the stability of the steel cage in the pile hole during the welding of two sections of the steel cage; Optionally, a pair of first fixtures 310 are respectively driven by two cylinders.

[0032] To improve the clamping stability of a pair of first fixtures 310 on the steel cage, a plurality of second protrusions 320 are respectively provided on the sides where a pair of first fixtures 310 approach each other. The second protrusions 320 are metal protrusions, which are used to increase the restrictive effect of the first fixture 310 on the steel cage.

[0033] Furthermore, the positioning assembly 400 includes: A positioning support rod 410. One end of the positioning support rod 410 close to the steel cage fixing assembly 300 is connected to the support base 100 through a second driving device 420. The other end of the positioning support rod 410 is provided with a foot 460. The positioning support rod 410 includes a plurality of detachably connected positioning units 411; The second driving device 420 is used to drive the positioning support rod 410 to rotate, so that the positioning assembly 400 can be switched between the first state and the second state; A positioning mechanism 430. The positioning mechanism 430 is installed on the positioning support rod 410. The positioning mechanism 430 is used to assist the transmission of the steel cage when the positioning assembly 400 is in the first state, and to clamp and fix the steel cage when the positioning assembly 400 is in the second state.

[0034] Specifically, as Figure 2 shown, the positioning assembly 400 is composed of a positioning support rod 410 and a positioning mechanism 430. Among them, the positioning support rod 410 is used to realize the switching between the first state and the second state, and the positioning mechanism 430 is used to realize the guiding and fixing of the steel cage.

[0035] The positioning support rod 410 is a straight rod. When the positioning assembly 400 is in the first state, the positioning support rod 410 extends in a direction parallel to the two long straight rods 110. The positioning support rod 410 is arranged above the middle position of the two long straight rods 110. The positioning support rod 410 is provided with a second drive device 420 at one end close to the cage assembly 300. The second drive device 420 can be two drive motors. The two drive motors are connected to the positioning support rod 410 in a transmission manner. The two drive motors are installed on the two long straight rods 110 through the bearing plate 421. A carrying plate 421 is fixedly connected to the two long straight rods 110, a support plate 422 is arranged between the two driving motors, the support plate 422 is fixed on the carrying plate 421, the end of the positioning strut 410 is hinged to the support plate 422, and the other end of the positioning strut 410 is provided with a support foot 460 for support; the positioning strut 410 is driven by the second driving device 420 so that the positioning strut 410 can be rotated, and when the positioning strut 410 is rotated to be perpendicular to the two long straight rods 110, the positioning assembly 400 is placed in the second state.

[0036] The positioning mechanism 430 is installed on the positioning support rod 410, and the positioning mechanism 430 also has two states. When the positioning assembly 400 is placed in the first state, the positioning mechanism 430 is placed in the first state. In the first state, the positioning mechanism 430 can guide the transmission of the steel cage; when the positioning assembly 400 is placed in the second state, the positioning mechanism 430 is placed in the second state. In the second state, the positioning mechanism 430 can fix the steel cage.

[0037] Furthermore, the positioning mechanism 430 includes: A plurality of clamping devices 440, wherein the plurality of clamping devices 440 are arranged on the positioning support rod 410 along the extension direction of the positioning support rod 410, and the clamping devices 440 include a fixing seat 441 and a pair of second clamps 442 provided on the fixing seat 441, wherein the second clamps 442 are arc-shaped and each pair of the second clamps 442 forms an annular clamp for the steel cage to pass through; The driving assembly 450 is installed on the positioning support rod 410 through a plurality of the fixing seats 441 . The driving assembly 450 is in transmission connection with the second clamps 442 for driving a plurality of pairs of the second clamps 442 to open or clamp.

[0038] Specifically, Figure 2 and Figure 4 As shown, the positioning mechanism 430 is composed of a plurality of clamping devices 440 and a driving assembly 450, wherein the clamping devices 440 are used to realize the first state and the second state mentioned above, and the driving assembly 450 is used to switch the clamping devices 440 between the first state and the second state.

[0039] A plurality of clamping devices 440 are arranged on the positioning support rod 410, and the clamping devices 440 are composed of a fixed seat 441 and a pair of second clamps 442. The fixed seat 441 is fixedly installed on the positioning support rod 410, and a pair of second clamps 422 are hinged on the fixed seat 441 and are respectively placed on both sides of the fixed seat 441; the second clamps 442 are semicircular arc-shaped, and the semicircular arc openings of the pair of second clamps 442 are arranged facing each other, so that the pair of second clamps 442 can cooperate to form a ring clamp; by controlling the pair of second clamps 442 to rotate synchronously, the ring clamp can be opened or clamped. When the positioning assembly 400 is placed in the first state, the second clamp 442 is opened. At this time, the second clamp 442 can support and guide the steel cage during the transmission of the steel cage, that is, the clamping device 440 is placed in the above-mentioned first state; when the positioning assembly 400 is ready to be placed in the second state, the second clamp 442 is clamped first. At this time, the second clamp 442 clamps and fixes the upper steel cage, that is, the clamping device 440 is placed in the above-mentioned second state.

[0040] The driving assembly 450 is supported by a plurality of fixing seats 441 , and the driving assembly 450 is transmission-connected to each second clamp 442 . The driving action of the driving assembly 450 can cause the plurality of second clamps 442 to be opened or clamped simultaneously.

[0041] Furthermore, the driving assembly 450 includes: A fixing rod 451, the fixing rod 451 passes through the fixing seat 441 and is fixed on the fixing seat 441, a gear rod 452 is rotatably mounted inside the fixing rod 451, a third driving device 453 is mounted at the end of the fixing rod 451, and the third driving device 453 is used to drive the gear rod 452 to rotate; A plurality of transmission racks 454, wherein the transmission racks 454 are meshed with the gear rod 452 and one end of the transmission racks 454 is fixed to the second clamp 442; A plurality of pairs of transmission gears 455 , each pair of the transmission gears 455 is rotatably mounted on a corresponding fixing seat 441 and meshes with each other, and each pair of the transmission gears 455 is fixed to a corresponding pair of the second clamps 442 .

[0042] Specifically, Figure 5As shown, the fixed rod 451 passes through all the fixed seats 441 and is connected to each fixed seat 441. The third driving device 453 is fixed to one end of the fixed rod 451 close to the reinforcement cage assembly 300. The rack bar 452 is rotatably installed inside the fixed rod 451. The rack bar 452 extends along a direction parallel to the positioning support rod 410. Multiple groups of teeth are provided on the side wall of the rack bar 452. The multiple groups of teeth penetrate the side wall of the fixed rod 451. The rack bar 452 is also in transmission connection with the third driving device 453. The third driving device 453 can be selected as a motor. Each group of teeth on the side wall of the rack bar 452 corresponds to the position of a fixed seat 441. The positions of the multiple transmission rack bars 454 correspond one by one to the positions of the multiple fixed seats 441. The transmission rack bars 454 are in a semi-circular arc shape. Each transmission rack bar 454 meshes with a group of teeth corresponding to the position of the corresponding fixed seat 441, and one end of the transmission rack bar 454 is fixedly connected to one of the second clamps 442 installed on the corresponding fixed seat 441.

[0043] When the third driving device 453 drives the rack bar 452 to rotate, the rotation of the rack bar 452 synchronously drives all the transmission rack bars 454 to rotate. When each transmission rack bar 454 rotates, it drives one of the second clamps 442 fixedly connected to the corresponding fixed seat 441 and fixedly connected to the transmission rack bar 454 to rotate. Since a pair of second clamps 442 on each fixed seat 441 are driven by a pair of transmission gears 455, when the second clamp 442 connected to the transmission rack bar 454 rotates, it drives the other second clamp 442 in the same pair to follow, thereby realizing the opening or clamping between the pair of second clamps 442.

[0044] Further, a plurality of rollers 443 are provided on the second clamp 442. The rollers 443 are used to assist in the transmission of the reinforcement cage when the second clamp 442 is opened. A plurality of third protrusions 444 are also provided on the second clamp 442. The third protrusions 444 are used to assist in fixing the reinforcement cage when the second clamp 442 is clamped.

[0045] Specifically, as Figure 2 and Figure 5 shown, a plurality of rollers 443 are provided inside the second clamp 442 at a position close to the lower side. When the positioning assembly 400 is in the first state, when the reinforcement cage is transmitted on the second clamp 442, it is placed on the rollers 443. The rollers 443 will rotate as the reinforcement cage is transmitted, thereby reducing the friction between the reinforcement cage and the second clamp 442 and improving the transmission efficiency. A plurality of third protrusions 444 are provided at the position inside the second clamp 442 where the rollers 443 are not provided. When the positioning assembly 400 is in the second state, the plurality of third protrusions 444 can improve the stability of the fixation between the second clamp 442 and the reinforcement cage and prevent the reinforcement cage from falling off the second clamp 442. Optionally, the third protrusions 444 are metal protrusions.

[0046] Furthermore, the lower cage assembly 500 includes: A fixing plate 510, wherein the fixing plate 510 is mounted on an end of the positioning support rod 410 away from the fixed cage assembly 300; The clamping mechanism 520 includes a mounting seat 521 and a fourth driving device 522 mounted on the mounting seat 521, a pair of adjustment racks 523 and a pair of grab hooks 524; the adjustment rack 523 is slidably mounted on the mounting seat 521 and meshes with the output shaft of the fourth driving device 522, the grab hook 524 is fixed on the corresponding adjustment rack 523, the grab hook 524 is used to hoist the steel cage, and the fourth driving device 522 is used to adjust the distance between the pair of grab hooks 524; The hoisting mechanism 530 is installed on the fixing plate 510 and connected to the mounting seat 521 . The hoisting mechanism 530 is used to drive the fixing plate 510 to rise and fall.

[0047] Specifically, Figure 6 As shown, the lower cage assembly 500 is composed of a fixed plate 510, a clamping mechanism 520 and a lifting mechanism 530, wherein the fixed plate 510 is fixed to the end of the positioning support rod 410 away from the fixed cage assembly 300 through a connecting rod 540, and the clamping mechanism 520 is connected to the fixed plate 510 through the lifting mechanism 530. The clamping mechanism 520 is used to clamp the steel cage, and the lifting mechanism 530 is used to drive the clamping mechanism 520 to rise and fall to achieve lifting.

[0048] like Figure 6 and Figure 7 As shown, in the clamping mechanism 520, the mounting seat 521 is connected to the lifting mechanism 530, and a pair of adjusting racks 523 are colinearly arranged on the mounting seat 521. The adjusting racks 523 are slidably connected to the mounting seat 521, and the adjusting racks 523 are also transmission-connected to the fourth driving device 522. Optionally, the fourth driving device 522 is two driving motors, and the output shafts of the two driving motors are respectively engaged with the pair of adjusting racks 523 through gears. The two driving motors can drive the pair of adjusting racks 523 to approach or move away from each other, and a pair of grab hooks 524 are respectively fixedly installed on the pair of adjusting racks 523, and the grab hooks 524 move with the adjusting racks 523; the grab hooks 524 are arc-shaped hooks, and the pair of grab hooks 524 are cross-arranged.

[0049] When the positioning assembly 400 is placed in the first state, the steel cage is transferred to the position of the clamping mechanism 520 and is mounted on the outside of the clamping mechanism 520. The fourth driving device 522 drives a pair of adjustment racks 523 to move in opposite directions, thereby causing a pair of grab hooks 524 to extend and hook the steel cage from the inside of the steel cage, thereby fixing the steel cage and facilitating subsequent lifting by the lifting mechanism 530.

[0050] Further, the hoisting mechanism 530 includes: A disc 531, on which a plurality of wire rope reels 532 are installed, and one end of each wire rope reel 532 is fixed to the mounting seat 521; A circular ring tooth rail 533, which is arranged on the fixed plate 510; A plurality of support rods 534, one end of each support rod 534 is fixed to the disc 531, and the other end is provided with a transmission rod 535 that can rotate relative to the support rod 534, and the transmission rod 535 meshes with the circular ring tooth rail 533; A fifth driving device 536, which is used to drive the transmission rod 535 to rotate so that the disc 531 rotates relative to the fixed plate 510.

[0051] Specifically, as Figure 8 shown, the hoisting mechanism 530 is composed of a disc 531, wire rope reels 532, a circular ring tooth rail 533, a plurality of support rods 534 and a fifth driving device 536. A circular through hole is provided at the center position of the fixed plate 510. The mounting seat 521 is arranged on one side of the through hole close to the fixing cage assembly 300, and the disc 531 is arranged on the side of the through hole away from the fixing cage assembly 300. A groove is provided on the side wall of the through hole, and the circular ring tooth rail 533 is arranged in the groove on the side wall of the through hole and is respectively arranged on the two side walls of the groove; a plurality of support rods 534 are arranged uniformly around the axis of the through hole. One end of the support rod 534 is fixed to the disc 531, and the other end is provided with a transmission rod 535 perpendicular to the support rod 534. Teeth are provided on the side wall of the transmission rod 535. The transmission rod 535 can rotate relative to the support rod 534. The transmission rod 535 extends into the groove from the side wall of the through hole and meshes with the circular ring tooth rail 533; the fifth driving device 536 is used to drive the transmission rod 535 to rotate. Optionally, the fifth driving device 536 is a plurality of driving motors, and each driving motor controls one transmission rod 535 separately; the wire rope reel 532 is fixedly installed on the disc 531, and the wire rope passes through the through hole of the fixed plate 510 and is fixed to the mounting seat 521.

[0052] When the positioning component 400 is in the first state, the mounting seat 521 is tightened by tightening the wire rope reel 532, so that the mounting seat 521 is tightly attached to the fixed plate 510 to prevent the fixed plate 510 from shaking; when the steel reinforcement cage reaches the clamping mechanism 520, a pair of hooks 524 are driven to open by the fourth driving device 522 to fix the steel reinforcement cage; when the positioning component 400 is in the second state, by releasing the wire rope reel 532, the wire rope reel 532 can drive the steel reinforcement cage to lower the cage. During this period, the fifth driving device 536 drives the transmission rod 535 to rotate, and then the disc 531 can rotate self - sufficiently. The steel reinforcement cage is driven to rotate by the wire rope reel 532, so as to be more convenient to align with the steel reinforcement cage in the pile hole and facilitate welding.

[0053] Embodiment 2 This embodiment provides an automatic cage-lowering control method, based on the detachable pile foundation steel cage automatic cage-lowering device described in Embodiment 1. The method includes: S1: Control the positioning assembly 400 to be in the first state and control the upper cage assembly 200 to descend.

[0054] Specifically, in step S1, before loading the steel cage, drive the rotating rod 240 to rotate counterclockwise in the figure through the first driving device 250, and drive the supporting platform 210 to descend by the rotation of the rotating rod 240; at this time, control a pair of first clamps 310 to move away from each other through two cylinders, and also drive the positioning support rod 410 to be in a horizontal state through the second driving device 420, that is, drive the positioning assembly 400 to be in the first state. At the same time, control the second clamp 442 to open through the third driving device 453.

[0055] S2: When one end of the steel cage is placed on the upper cage assembly 200, control the upper cage assembly 200 to lift the steel cage, and control the upper cage assembly 200 to transfer the steel cage through the positioning assembly 400 to the other end of the support base 100.

[0056] Specifically, in step S2, after the steel cage is placed on the supporting platform 210, drive the rotating rod 240 to rotate clockwise in the figure through the first driving device 250 to lift the steel cage by the supporting platform 210; after the steel cage is lifted, start the conveyor belt 220 to make the steel cage move downward to the lower cage assembly 500 under the drive of the conveyor belt 220 and the support of the second clamp 442. During this period, the rollers 443 on the second clamp 442 play a role in reducing the friction when the steel cage is conveyed.

[0057] S3: Control the lower cage assembly 500 to grab the steel cage.

[0058] Specifically, in step S3, when the steel cage moves to the outside of the clamping mechanism 520, drive a pair of adjusting racks 523 to move through the fourth driving device 522, and then drive a pair of hooks 524 to move to grab the steel cage. At this time, the steel wire rope reel 532 is in a tightened state, and the mounting seat 521 is close to the fixed plate 510.

[0059] S4: Control the positioning assembly 400 to switch to the second state to align the steel cage with the pile hole.

[0060] Specifically, in step S4, after the hook 524 fixes the steel cage, first drive the second clamp 442 to clamp through the third driving device 453 to fix the steel cage, and then drive the positioning support rod 410 to be in a vertical state through the second driving device 420 to align the steel cage with the pile hole position.

[0061] S5: Control the lower cage assembly 500 to lower the steel reinforcement cage. When the steel reinforcement cage is lowered into the pile hole, control the cage fixing assembly 300 to fix the tail end of the steel reinforcement cage.

[0062] Specifically, in step S5, drive the second clamp 442 to open through the third driving device 453, and then lower the steel reinforcement cage by relaxing the wire rope reel 532. After the steel reinforcement cage is lowered into the pile hole, drive the first clamp 310 to clamp the top of the steel reinforcement cage in the pile hole through the cylinder.

[0063] S6: Repeat the above steps S1 - S4 to align the front end of the steel reinforcement cage not placed in the pile hole with the tail end of the steel reinforcement cage lowered into the pile hole, so as to facilitate the welding of the steel reinforcement cage.

[0064] Specifically, in step S6, lower the second section of the steel reinforcement cage in the same manner by repeating the above steps. It should be noted that after the second section of the steel reinforcement cage is lowered and docked with the first section of the steel reinforcement cage in the pile hole, the transmission rod 535 can be driven to rotate through the fifth driving device 536, thereby driving the disc 531 to rotate. Then, utilize the driving effect of the wire rope reel 532 to rotate the second section of the steel reinforcement cage, so that the second section of the steel reinforcement cage is aligned with the first section of the steel reinforcement cage. Then, the second section of the steel reinforcement cage and the first section of the steel reinforcement cage can be welded. After welding, the steel reinforcement cage can be further lowered through the wire rope reel 532. After lowering, continue to fix the steel reinforcement cage through the first clamp 310 to facilitate subsequent welding until the steel reinforcement cage is placed at the bottom of the pile hole.

[0065] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A detachable automatic cage-lowering device for pile foundation steel reinforcement cages, characterized in that It includes a support base (100), and the support base (100) includes a plurality of support units (101). The plurality of support units (101) are detachably connected along the extension direction of the support base (100). The support base (100) is provided with: An upper cage assembly (200), which is installed at one end of the support base (100). The upper cage assembly (200) is used to lift the steel reinforcement cage and send the steel reinforcement cage to the other end of the support base (100) for hoisting; A cage fixing assembly (300), which is used to align with the pile hole during cage lowering and fix the steel reinforcement cage lowered into the pile hole; A positioning assembly (400), which is arranged on the side of the cage fixing assembly (300) away from the upper cage assembly (200). The positioning assembly (400) includes a first state and a second state. When in the first state, the positioning assembly (400) assists the steel reinforcement cage to be conveyed along the extension direction of the support base (100); when in the second state, the positioning assembly (400) vertically lifts the steel reinforcement cage along the direction perpendicular to the extension of the support base (100); A cage lowering assembly (500), which is arranged at one end of the positioning assembly (400) away from the cage fixing assembly (300). The cage lowering assembly (500) is used to hoist the steel reinforcement cage and lower the cage when the positioning assembly (400) is in the second state.

2. The detachable pile foundation steel cage automatic cage-lowering device according to claim 1, wherein, The upper cage assembly (200) includes: A support platform (210), which is used to support the steel reinforcement cage. The surface of the support platform (210) is provided with a conveyor belt (220) for conveying the steel reinforcement cage. The surface of the conveyor belt (220) is provided with first protrusions (221). Arc-shaped retaining rods (230) are respectively arranged on both sides of the support platform (210); A plurality of rotating rods (240), which are respectively arranged on both sides of the support platform (210). One end of the rotating rod (240) is hinged to the side wall of the support platform (210), and the other end is hinged to the support base (100); A first driving device (250), which is used to drive the relative rotation of the rotating rod (240) and the support base (100).

3. The detachable pile foundation steel reinforcement cage automatic cage lowering device according to claim 2, wherein, The cage fixing assembly (300) includes: A pair of first clamps (310), which are movably installed on the support base (100). The first clamps (310) are arc-shaped and the pair of first clamps (310) are arranged oppositely to form a circular clamp. The pair of first clamps (310) can approach or move away from each other; A plurality of second protrusions (320), which are arranged on the inner side of the first clamp (310).

4. The detachable pile foundation steel reinforcement cage automatic cage lowering device according to claim 3, characterized in that, The positioning assembly (400) includes: A positioning support rod (410), one end of the positioning support rod (410) close to the cage fixing assembly (300) is connected to the support base (100) through a second driving device (420), the other end of the positioning support rod (410) is provided with a support foot (460), and the positioning support rod (410) comprises a plurality of detachably connected positioning units (411); the second driving device (420) is used for driving the positioning support rod (410) to rotate so that the positioning assembly (400) can switch between the first state and the second state; A positioning mechanism (430), the positioning mechanism (430) is installed on the positioning support rod (410), and the positioning mechanism (430) is used for assisting in the conveying of the steel reinforcement cage when the positioning assembly (400) is in the first state and clamping and fixing the steel reinforcement cage when the positioning assembly (400) is in the second state.

5. The detachable pile foundation steel reinforcement cage automatic cage lowering device according to claim 4, characterized in that, The positioning mechanism (430) comprises: A plurality of clamping devices (440), the plurality of clamping devices (440) are arranged on the positioning support rod (410) along the extending direction of the positioning support rod (410), each clamping device (440) comprises a fixed seat (441) and a pair of second clamps (442) arranged on the fixed seat (441), the second clamps (442) are arc-shaped and each pair of the second clamps (442) forms an annular clamp for the steel reinforcement cage to pass through; A driving assembly (450), the driving assembly (450) is installed on the positioning support rod (410) through a plurality of the fixed seats (441), the driving assembly (450) is in transmission connection with the second clamps (442) and is used for driving the plurality of pairs of second clamps (442) to open or clamp.

6. The automatic cage-lowering device for the detachable pile foundation steel reinforcement cage according to claim 5, characterized in that, The driving assembly (450) comprises: A fixed rod (451), the fixed rod (451) penetrates through the fixed seat (441) and is fixed on the fixed seat (441), a toothed rod (452) is rotatably installed inside the fixed rod (451), a third driving device (453) is installed at the end of the fixed rod (451), and the third driving device (453) is used for driving the toothed rod (452) to rotate; A plurality of transmission racks (454), the transmission racks (454) are meshed with the toothed rod (452) and one end of each transmission rack (454) is fixed to the second clamp (442); A plurality of pairs of transmission gears (455), each pair of transmission gears (455) is rotatably installed on the corresponding fixed seat (441) and meshes with each other, and each pair of transmission gears (455) is fixed to the corresponding pair of second clamps (442).

7. The detachable pile foundation steel reinforcement cage automatic cage lowering device according to claim 6, characterized in that A plurality of rollers (443) are arranged on the second clamp (442), and the rollers (443) are used for assisting in the conveying of the steel reinforcement cage when the second clamp (442) is opened; a plurality of third protrusions (444) are further arranged on the second clamp (442), and the third protrusions (444) are used for assisting in fixing the steel reinforcement cage when the second clamp (442) is clamped.

8. The automatic cage-lowering device for a detachable pile foundation steel reinforcement cage according to claim 7, characterized in that, The lower cage assembly (500) comprises: A fixed plate (510), the fixed plate (510) is installed at one end of the positioning support rod (410) away from the cage fixing assembly (300); A clamping mechanism (520), the clamping mechanism (520) includes a mounting seat (521) and a fourth driving device (522), a pair of adjusting racks (523) and a pair of hooks (524) installed on the mounting seat (521); the adjusting racks (523) are slidably installed on the mounting seat (521) and meshed with the output shaft of the fourth driving device (522), the hooks (524) are fixed to the corresponding adjusting racks (523), the hooks (524) are used for hoisting the steel reinforcement cage, and the fourth driving device (522) is used for adjusting the distance between the pair of hooks (524); A hoisting mechanism (530), the hoisting mechanism (530) is installed on the fixed plate (510) and connected to the mounting seat (521), and the hoisting mechanism (530) is used for driving the fixed plate (510) to lift and lower.

9. The automatic cage lowering device for detachable pile foundation reinforcement cages according to claim 8, characterized in that, The hoisting mechanism (530) includes: A disc (531), a plurality of wire rope reels (532) are installed on the disc (531), and one end of the wire rope reel (532) is fixed to the mounting seat (521); A circular tooth rail (533), the circular tooth rail (533) is arranged on the fixed plate (510); A plurality of support rods (534), one end of the support rod (534) is fixed to the disc (531), and the other end is provided with a transmission rod (535) that can rotate relative to the support rod (534), and the transmission rod (535) is meshed with the circular tooth rail (533); A fifth driving device (536), the fifth driving device (536) is used for driving the transmission rod (535) to rotate, so that the disc (531) rotates relative to the fixed plate (510).

10. An automatic cage lowering control method, characterized in that, Based on the detachable pile foundation steel reinforcement cage automatic cage lowering device according to any one of claims 1-9, the method includes: S1: Control the positioning assembly (400) to be in the first state and control the upper cage assembly (200) to descend; S2: When one end of the steel reinforcement cage is placed on the upper cage assembly (200), control the upper cage assembly (200) to lift the steel reinforcement cage, and control the upper cage assembly (200) to convey the steel reinforcement cage through the positioning assembly (400) to the other end of the support base (100); S3: Control the lower cage assembly (500) to grab the steel reinforcement cage; S4: Control the positioning assembly (400) to switch to the second state, so that the steel reinforcement cage is aligned with the pile hole; S5: Control the lower cage assembly (500) to lower the steel reinforcement cage, and when the steel reinforcement cage is lowered into the pile hole, control the cage fixing assembly (300) to fix the tail end of the steel reinforcement cage; S6: Repeat the above steps S1-S4 to align the front end of the steel reinforcement cage not placed in the pile hole with the tail end of the steel reinforcement cage lowered into the pile hole, so as to facilitate the welding of the steel reinforcement cage.

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