Fabricated reinforcement cage lowering device

Abstract

The invention provides an assembly type reinforcement cage lowering device which comprises lowering device units arranged on the outer side of a pile opening in a circumferential array mode, and every two adjacent lowering device units are detachably and fixedly connected through a supporting rod assembly. The lowering device unit is provided with a bottom plate, a supporting frame is arranged at the top of the bottom plate, a radial adjusting mechanism which moves in the radial direction of the pile hole to adjust the position of the supporting frame is arranged on the bottom plate, a positioning roller and a supporting roller which correspond to a reinforcement cage are arranged on the supporting frame, and a supporting roller translation mechanism which drives the supporting roller to move in the radial direction of the pile hole is arranged on the supporting frame. A lowering mechanism for lowering the reinforcement cage is arranged on the support frame; according to the device, the positioning rollers and the supporting rollers can be used for limiting the periphery of the reinforcement cage, so that the reinforcement cage is aligned with the center of a pile hole, and the reinforcement cage can be kept in a vertical state in the descending process of the reinforcement cage; in the descending process of the reinforcement cage, the positioning rollers and the supporting rollers rotate along with descending of the reinforcement cage, and friction between the positioning rollers and the reinforcement cage and friction between the supporting rollers and the reinforcement cage are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of bored pile construction, and in particular relates to an assembled steel cage lowering device. Background Art

[0002] The steel cage is a cage-like structure surrounded by steel bars. During the construction of the bridge pile foundation steel cage, the steel cage needs to be lowered into the hole on the ground in sections, and the adjacent sections need to be connected.

[0003] The traditional method of lowering the steel cage, such as the Chinese invention patent application with application publication number CN118257267A, discloses a construction method for secondary conversion and lowering of the pile foundation steel cage. The steel cage is lifted by a crane and workers assist in aligning the steel cage with the drill hole before lowering it. The alignment in this method is determined by the workers' experience, and the center error is large. At the same time, the alignment efficiency is low. During the lowering process, the steel cage may be offset due to crane vibration or wind blowing.

[0004] Therefore, it is necessary to design an assembled steel cage lowering device that can position the steel cage during the lowering process to prevent the steel cage from shifting, so as to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an assembled steel cage lowering device which can position the steel cage during the lowering process to prevent the steel cage from deflecting.

[0006] The technical solution of the present invention is: an assembled steel cage lowering device, comprising lowering device units arranged in a circular array outside the pile mouth, and adjacent lowering device units are detachably fixedly connected by a support rod assembly; the lowering device unit has a base plate, a support frame is arranged on the top of the base plate, a radial adjustment mechanism for adjusting the position of the support frame along the radial movement of the pile hole is arranged on the base plate, positioning rollers and support rollers corresponding to the steel cage are arranged on the support frame, a support roller translation mechanism for driving the support roller to move along the radial movement of the pile hole is arranged on the support frame, and a lowering mechanism for lowering the steel cage is arranged on the support frame; the lowering mechanism has a lowering roller and a lowering drive motor for driving the lowering roller to rotate, and a locking mechanism for locking or releasing it is arranged on the lowering roller.

[0007] Both ends of the lowering roller are rotatably provided with axle seats, and the axle seats are fixedly provided on one side of the support frame, and both ends of the lowering roller are provided with locking holes in a circumferential array; the locking mechanism has a plug slidably provided above the axle seat corresponding to the locking hole, and the end of the plug away from the lowering roller is fixedly provided with a connecting plate, and the connecting plate is slidably connected to the axle seat along the axial direction of the plug, and a connecting rod is rotatably connected to the connecting plate, and the end of the connecting rod away from the connecting plate is rotatably connected to a driving block, and a locking driving cylinder for driving the driving block to reciprocate is provided on the support frame.

[0008] The driving block is provided with an elastic support component, and the locking driving cylinder is connected to the elastic support component.

[0009] The elastic support assembly includes a buffer guide rod slidably arranged inside the driving block, a buffer baffle plate is fixedly arranged at one end of the buffer guide rod, a limiting column is fixedly arranged at the other end of the buffer guide rod, the locking drive cylinder is fixedly connected to the limiting column, and a buffer spring is sleeved on the outer side of the buffer guide rod between the buffer baffle plate and the driving block.

[0010] A support is fixedly arranged on the top of the shaft seat, a sliding rod parallel to the plug is arranged in the support, the connecting plate is slidably connected to the sliding rod, and a limiting plate is fixedly arranged on the end of the sliding rod.

[0011] The outer side of the lowering roller is provided with clamping strips in a circumferential array parallel to the axial direction thereof, and the clamping strips and the lowering roller are an integral structure.

[0012] The support roller comprises a support rod support plate, and two support rollers are rotatably arranged on one side of the support roller support plate; the support roller translation mechanism comprises a translation guide rod evenly arranged on the support roller support plate on the side away from the support roller, the translation guide rod is slidably connected to the support frame, a translation limit plate is fixedly arranged on the end of the translation guide rod, a translation screw is rotatably arranged on the support roller support plate on the side away from the support roller, the translation screw is threadedly connected to the support frame, and a handle is arranged on the end of the translation screw.

[0013] A radial adjustment screw is rotatably provided at one end of the support frame, a bottom plate support plate is threadedly connected to the radial adjustment screw, the bottom plate support plate is fixedly provided on the top of the bottom plate, and a hand wheel is fixedly provided at the end of the radial adjustment screw.

[0014] Slide plates are fixedly arranged at the bottom of both sides of the support frame, and a slide groove matching the slide plates is arranged on the top of the bottom plate, and the slide plates are slidably arranged inside the slide grooves.

[0015] The support rod assembly comprises a first support rod and a second support rod which are arranged in parallel between two adjacent lowering device units, and an oblique support rod is arranged between the lowering device unit and the second support rod.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, the positioning rollers and the supporting rollers arranged correspondingly up and down can limit the position of the steel cage around it, so that the steel cage is aligned with the center of the pile hole, and can keep the steel cage in a vertical state during the lowering process;

[0018] (2) The positioning roller and the support roller rotate as the steel cage is lowered, thereby reducing the friction between the positioning roller, the support roller and the steel cage;

[0019] (3) The support roller translation mechanism can drive the support roller to move along the radial direction of the pile hole. By adjusting the support roller to move away from the pile hole, the steel cage can be easily hoisted between the support rollers. After the steel cage enters between the support rollers, the support roller is adjusted to reset so that the support roller is against the outer side of the steel cage. Through the guiding effect of the support roller, the steel cage can easily enter between the positioning rollers.

[0020] (4) When the steel cage is hoisted between the positioning roller and the supporting roller, the steel cage is clamped between the lowering mechanisms in the lowering device units around it, and the lowering drive motor drives the lowering roller to rotate, and the steel cage is driven to move downward through the lowering roller, and the lowering speed is controllable;

[0021] (5) When two sections of steel cage need to be spliced, the lowering rollers can be locked by a locking mechanism, so that the steel cage between the lowering rollers remains fixed, making it convenient to connect another section of the steel cage to the top. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the structural schematic diagrams of the assembled steel cage lowering device in the present invention.

[0023] Figure 2 This is the second structural schematic diagram of the assembled steel cage lowering device in the present invention.

[0024] Figure 3 This is one of the structural schematic diagrams of the lowering device unit in the present invention.

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] Figure 5 This is the second structural schematic diagram of the lowering device unit in the present invention. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is not intended to be any limitation on the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limitations.

[0028] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] like Figures 1 to 5As shown, the assembled steel cage lowering device comprises lowering device units 100 arranged in a circular array outside the pile mouth, and adjacent lowering device units are detachably fixedly connected by support rod assemblies; the lowering device unit 100 comprises a bottom plate 1, a support frame 3 is arranged on the top of the bottom plate 1, a radial adjustment mechanism 2 for adjusting the position of the support frame 3 along the radial movement of the pile hole is arranged on the bottom plate 1, a positioning roller 4 and a support roller 5 corresponding to the steel cage are arranged on the support frame 3, the positioning roller 4 is arranged at the lower end of one side of the support frame 3, and the support roller 5 is arranged on the support frame 3 At the upper end of one side, a support roller translation mechanism 6 is provided on the support frame 3 to drive the support roller 4 to move radially along the pile hole, and a lowering mechanism 7 for lowering the steel cage is provided on the support frame 3; the lowering mechanism 7 has a lowering roller 71 and a lowering drive motor 72 for driving the lowering roller 71 to rotate, and a locking mechanism 8 for locking or releasing it is provided on the lowering roller 71; in this embodiment, the positioning rollers 4 and the support rollers 5 correspondingly arranged above and below can limit the steel cage around it, so that the steel cage is aligned with the center of the pile hole, and can be in the steel cage During the lowering process, the steel cage is kept in a vertical state; the positioning roller 4 and the supporting roller 5 rotate as the steel cage is lowered, reducing the friction between the positioning roller 4, the supporting roller 5 and the steel cage; the supporting roller translation mechanism 6 can drive the supporting roller 5 to move along the radial direction of the pile hole, and adjust the supporting roller 5 to move away from the pile hole, which can facilitate the lifting of the steel cage between the supporting rollers 5. After the steel cage enters between the supporting rollers 5, the supporting roller 5 is adjusted to reset, so that the supporting roller 5 is against the outer side of the steel cage, and the steel cage is guided by the supporting roller 5. The steel cage is hoisted between the positioning rollers 4 and the supporting rollers 5, and is clamped between the lowering mechanisms 7 in the lowering device units 100 around the steel cage. The lowering drive motor 72 drives the lowering rollers 71 to rotate, and the steel cage is driven to move downward and lowered through the lowering rollers 71, and the lowering speed is controllable. When it is necessary to splice two sections of the steel cage, the lowering rollers 71 can be locked by the locking mechanism 8, so that the steel cage between the lowering rollers 71 remains fixed, so that another section of the steel cage can be connected to the top of the steel cage.

[0030] In some embodiments, both ends of the lowering roller 71 are rotatably provided with axle seats 75, the axle seats 75 are fixedly provided on one side of the support frame 3, and both ends of the lowering roller 71 are provided with locking holes 74 in a circumferential array; the locking mechanism 8 has a plug 81 slidably provided above the axle seat 75 corresponding to the locking hole 74, and a connecting plate 82 is fixedly provided on the end of the plug 81 away from the lowering roller 71, and the connecting plate 82 is slidably connected to the axle seat 75 along the axial direction of the plug 81, and a connecting rod 86 is rotatably connected to the connecting plate 82, and a driving block 87 is rotatably connected to the end of the connecting rod 86 away from the connecting plate 82, and a locking driving cylinder 88 for driving the driving block 87 to move back and forth is provided on the support frame 3; the locking driving cylinder 88 for driving the driving block 87 to move back and forth is provided ... The hydraulic cylinder 88 drives the driving block 87 to move back and forth, and the driving block 87 pushes and pulls the connecting plate 82 through the connecting rod 86. The connecting plate 82 drives the plug 81 to move along the axial direction of the plug 81, so that the end of the plug 81 can be inserted into the locking hole 74, or the end of the plug 81 can be pulled out from the locking hole 74; the plug 81 is inserted into the locking hole 74, which can lock the lowering roller 71. At this time, the lowering roller 71 cannot rotate, which can keep the steel cage between the lowering rollers 71 in a fixed position, facilitating the docking between the steel cages; after the docking is completed, the end of the plug 81 is pulled out from the locking hole 74, and the lower part of the steel cage can be continued after the lock is released.

[0031] In some embodiments, an elastic support assembly 89 is provided on the driving block 87, and the locking driving cylinder 88 is connected to the elastic support assembly 89. When the locking driving cylinder 88 pulls the driving block 87 to insert the plug 81 into the locking hole 74, the elastic support assembly 89 applies elastic force to the driving block 87. Under the action of the elastic force, the driving block 87 has a tendency to insert the plug 81 into the locking hole 74. When the position of the plug 81 corresponds to the position between the two locking holes 74, the end of the plug 81 is abutted against the end of the lowering roller 71. At this time, after the lowering roller 71 rotates a certain angle, under the action of the elastic force, the plug 81 will be inserted into the locking hole 74 to lock the lowering roller 71.

[0032] In some embodiments, the elastic support component 89 has a buffer guide rod 891 slidably arranged inside the driving block 87, a buffer baffle 892 is fixedly arranged at one end of the buffer guide rod 891, and a limiting column 894 is fixedly arranged at the other end of the buffer guide rod 891. The locking driving cylinder 88 is fixedly connected to the limiting column 894, and a buffer spring 893 is sleeved on the outer side of the buffer guide rod 891 between the buffer baffle 892 and the driving block 87; when the locking driving cylinder 88 pulls the driving block 87 to insert the bolt 81 into the locking hole 74, the locking driving cylinder 88 pulls the buffer guide rod 891 and the buffer baffle 892 through the limiting column 894, and the buffer baffle 892 moves to compress the buffer spring Spring 893, the buffer spring 893 applies elastic force to the driving block 87. Under the action of the elastic force of the buffer spring 893, the driving block 87 makes the bolt 81 tend to be inserted into the locking hole 74. When the position of the bolt 81 corresponds to the position between the two locking holes 74, the end of the bolt 81 is against the end of the lowering roller 71. At this time, after the lowering roller 71 rotates a certain angle, under the action of the elastic force, the bolt 81 will be inserted into the locking hole 74 to lock the lowering roller 71; when the lowering roller 71 is released, the locking driving cylinder 88 drives the limit column 894 to reset, the limit column 894 pushes the driving block 87, and the driving block 87 drives the connecting rod 86 to push the connecting plate 82 and the bolt 81 to reset.

[0033] In some embodiments, a support 83 is fixedly provided on the top of the shaft seat 75, a sliding rod 84 parallel to the plug 81 is provided in the support 83, the connecting plate 82 is slidably connected to the sliding rod 84, a limiting plate 85 is fixedly provided at the end of the sliding rod 84, the plug 81 is slidably connected to the sliding rod 84 through the connecting plate 82, and the limiting plate 85 can prevent the connecting plate 82 from slipping off the sliding rod 84.

[0034] In some embodiments, the outer side of the lowering roller 71 has a circular array of clamping strips 73 parallel to its axial direction. The clamping strips 73 and the lowering roller 71 are an integral structure. The clamping strips 73 cooperate with the stirrups outside the steel cage and can block the stirrups outside the steel cage to prevent the steel cage from slipping off the lowering roller 71 during the lowering process.

[0035] In some embodiments, Figure 3 and 5As shown, the support roller 5 has a support rod support plate 51, and two support rollers 5 are rotatably arranged on one side of the support roller support plate 51; the support roller translation mechanism 6 has a translation guide rod 61 evenly arranged on the support roller support plate 51 and away from the support roller 5 side, the translation guide rod 61 is slidably connected to the support frame 3, and a translation limit plate 62 is fixedly arranged on the end of the translation guide rod 61, and a translation screw 63 is rotatably arranged on the support roller support plate 51 away from the support roller 5 side, and the translation screw 63 is threadedly connected to the support frame 3, and the translation screw 63 is A handle 64 is provided at the end, which is used to facilitate the rotation of the translation screw 63. The threaded structure between the translation screw 63 and the support frame 3 can drive the support roller 5 to move radially along the pile hole. Before the steel cage is first installed, the support roller 5 can be moved away from the pile hole by rotating the translation screw 63 to increase the distance between the support rollers 5, which facilitates the insertion of the steel cage. After insertion, the translation screw 63 is adjusted to make the support roller 5 close to the pile hole, so that the support roller 5 abuts against the outside of the steel cage to limit the lowering of the steel cage.

[0036] In some embodiments, Figure 5 As shown, a radial adjustment screw 21 is rotatably provided at one end of the support frame 3, and a bottom plate support plate 24 is threadedly connected to the radial adjustment screw 21. The bottom plate support plate 24 is fixedly provided on the top of the bottom plate 1, and a hand wheel 24 is fixedly provided at the end of the radial adjustment screw 21. The radial adjustment screw 21 is rotated by the hand wheel 24, and the threaded structure between the radial adjustment screw 21 and the bottom plate support plate 24 drives the radial adjustment screw 21 to drive the support frame 3 to move along the radial direction of the pile hole, so that it is suitable for lowering steel cages with different diameters.

[0037] In some embodiments, slide plates 23 are fixedly disposed on the bottom of both sides of the support frame 3 , a slide groove 22 matching the slide plate 23 is disposed on the top of the bottom plate 1 , and the slide plate 23 is slidably disposed inside the slide groove 23 .

[0038] In some embodiments, the support rod assembly is used to provide stable support between adjacent lowering device units 100, and the support rod assembly has a first support rod 200 and a second support rod 300 arranged in parallel between two adjacent lowering device units 100, and a diagonal support rod 400 is arranged between the lowering device unit 100 and the second support rod 200, and the first support rod 200, the second support rod 300, the diagonal support rod 400 and the bottom plate 1 of the lowering device unit 100 are detachably fixed and assembled with bolts and nuts, and the diagonal support rod 400 and the second support rod 300 are detachably fixed and assembled with bolts and nuts.

[0039] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0040] The above-mentioned embodiments only express some implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An assembled steel cage lowering device, characterized in that: It comprises lowering device units arranged in a circumferential array outside the pile opening, and adjacent lowering device units are detachably and fixedly connected via a support rod assembly; The lowering device unit comprises a bottom plate, a support frame is arranged on the top of the bottom plate, a radial adjustment mechanism is arranged on the bottom plate for adjusting the position of the support frame by radial movement along the pile hole, a positioning roller and a support roller corresponding to the steel cage are arranged on the support frame, a support roller translation mechanism is arranged on the support frame for driving the support roller to move radially along the pile hole, and a lowering mechanism for lowering the steel cage is arranged on the support frame; The lowering mechanism comprises a lowering roller and a lowering driving motor for driving the lowering roller to rotate, and a locking mechanism for locking or releasing the lowering roller is arranged on the lowering roller.

2. The assembled steel cage lowering device according to claim 1 is characterized in that: Both ends of the lowering roller are rotatably provided with shaft seats, the shaft seats are fixedly provided on one side of the support frame, and both ends of the lowering roller are provided with locking holes in a circumferential array; The locking mechanism comprises a plug which is slidably arranged above the axle seat corresponding to the locking hole, a connecting plate is fixedly arranged on the end of the plug which is away from the lowering roller, the connecting plate is slidably connected to the axle seat along the axial direction of the plug, a connecting rod is rotatably connected to the connecting plate, a driving block is rotatably connected to the end of the connecting rod which is away from the connecting plate, and a locking driving cylinder which drives the driving block to reciprocate is arranged on the support frame.

3. The assembled steel cage lowering device according to claim 2 is characterized in that: The driving block is provided with an elastic support component, and the locking driving cylinder is connected to the elastic support component.

4. The assembled steel cage lowering device according to claim 3 is characterized in that: The elastic support assembly includes a buffer guide rod slidably arranged inside the driving block, a buffer baffle plate is fixedly arranged at one end of the buffer guide rod, a limiting column is fixedly arranged at the other end of the buffer guide rod, the locking drive cylinder is fixedly connected to the limiting column, and a buffer spring is sleeved on the outer side of the buffer guide rod between the buffer baffle plate and the driving block.

5. The assembled steel cage lowering device according to claim 3 is characterized in that: A support is fixedly arranged on the top of the shaft seat, a sliding rod parallel to the plug is arranged in the support, the connecting plate is slidably connected to the sliding rod, and a limiting plate is fixedly arranged on the end of the sliding rod.

6. The assembled steel cage lowering device according to claim 1 is characterized in that: The outer side of the lowering roller is provided with clamping strips in a circumferential array parallel to the axial direction thereof, and the clamping strips and the lowering roller are an integral structure.

7. The assembled steel cage lowering device according to claim 1 is characterized in that: The support roller has a support rod support plate, and two support rollers are rotatably arranged on one side of the support roller support plate; The support roller translation mechanism comprises a translation guide rod evenly arranged on the support roller support plate on the side away from the support roller, the translation guide rod is slidably connected to the support frame, a translation limit plate is fixedly arranged on the end of the translation guide rod, a translation screw is rotatably arranged on the support roller support plate on the side away from the support roller, the translation screw is threadedly connected to the support frame, and a handle is arranged on the end of the translation screw.

8. The assembled steel cage lowering device according to claim 1 is characterized in that: A radial adjustment screw is rotatably provided at one end of the support frame, a bottom plate support plate is threadedly connected to the radial adjustment screw, the bottom plate support plate is fixedly provided on the top of the bottom plate, and a hand wheel is fixedly provided at the end of the radial adjustment screw.

9. The assembled steel cage lowering device according to claim 1 is characterized in that: Slide plates are fixedly arranged at the bottom of both sides of the support frame, and a slide groove matching the slide plates is arranged on the top of the bottom plate, and the slide plates are slidably arranged inside the slide grooves.

10. The assembled steel cage lowering device according to claim 1 is characterized in that: The support rod assembly comprises a first support rod and a second support rod which are arranged in parallel between two adjacent lowering device units, and an oblique support rod is arranged between the lowering device unit and the second support rod.

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