Disclosure of Invention
In order to solve the defects in the prior art, the application provides a steel reinforcement cage hoisting device which is used for solving the problems of deformation and loose structure in the hoisting process of the steel reinforcement cage and effectively improving the hoisting stability.
In order to achieve the above object, the present invention adopts the following technique:
a rebar cage hoist device for hoisting a vertical cylindrical rebar cage, comprising:
The edge of the circular plate is provided with a plurality of positioning grooves in a circumferential array along the radial direction, a lifting block is arranged above the circular plate, and the edge of the circular plate is provided with at least three lifting lugs in circumferential array arrangement and is used for being connected with the lifting block through a lifting rope;
The positioning assembly is arranged on the top surface of the circular plate and corresponds to each positioning groove, each group comprises a movable block which moves along the length direction of each positioning groove, and a push rod which is parallel to the length direction of each positioning groove is arranged on the movable block in a sliding way along the radial direction of the circular plate;
The driving mechanism is arranged on the circular plate and is used for driving all the movable blocks to synchronously centripetal or centrifugally move;
The vertical rods are vertically arranged below the circular plate and correspond to the positioning grooves, the upper ends of the vertical rods are connected with the movable blocks, and a pair of vertical clamping plates are arranged on one side of the vertical rods, which faces the axis of the circular plate, and are positioned below the positioning grooves and face the length direction of the corresponding push rods;
When the bottom surface of the circular plate is abutted against the annular rib at the top end of the reinforcement cage, the top surfaces of the clamping plates are flush with the annular rib at the top end, the top surfaces of the bearing rods of each pair are respectively flush with the other annular ribs, when the driving mechanism drives the movable block to centripetally move to the two inner sides of the V-shaped plate and abut against the vertical ribs, the axis of the circular plate is coincident with the axis of the reinforcement cage, the clamping plates and the bearing rods are respectively opposite to the vertical ribs, and when the movable block is continuously driven centripetally, the clamping plates are inserted below the annular rib at the top end and the vertical ribs enter between the two clamping plates, and each bearing rod is inserted below the corresponding annular rib.
The invention has the beneficial effects that:
1. When the hoisting device is used for hoisting the reinforcement cage, the ring ribs at the top end of the reinforcement cage are borne by the top surfaces of the clamping plates, the rest ring ribs are respectively borne by the bearing rods, the stress points on each ring rib are arranged around the circumferential array of the ring ribs, the stress is uniform, more stress points can effectively distribute the larger dead weight of the reinforcement cage, and the problem of deformation of the ring ribs is effectively avoided;
2. the splint can clamp the vertical bar during hoisting, so that the vertical bar and the annular bar are integrally stressed and kept relatively static in the hoisting process, the influence of the dead weight of the vertical bar on binding points of the vertical bar and the annular bar is effectively reduced, and the problem that the overall structure of the reinforcement cage is loose and the geometric shape is changed is effectively solved.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, but the described embodiments of the present invention are some, but not all embodiments of the present invention.
Example 1
The embodiment of the application provides a steel reinforcement cage lifting device which is used for lifting a cylindrical steel reinforcement cage 5 shown in fig. 9. The reinforcement cage 5 of the embodiment is a cylindrical framework structure formed by binding six vertical ribs 52 and five ring ribs 51, wherein the six vertical ribs 52 are reinforcement bars which are axially arranged in parallel along the reinforcement cage 5 and are arranged around a circumferential array to form a longitudinal stressed main body of the reinforcement cage 5, the five ring ribs 51 are annular reinforcement bars which are axially arranged along the reinforcement cage 5 and encircle all the vertical ribs 52 and are bound and fixed at the crossing points of the vertical ribs 52 through steel wire ropes, so that the functions of restraining the vertical ribs 52 and maintaining the overall shape of the framework are achieved.
Specifically, as shown in fig. 1-8, the hoisting device in this embodiment includes a circular plate 1, six groups of positioning assemblies 2, a driving mechanism 3, six vertical rods 4, and the like.
As shown in fig. 1 and 5, six positioning grooves 11 which are arranged around the circumference of the circular plate 1 in an array manner are formed in the edge of the circular plate 1 in the radial direction and are respectively used for vertically penetrating through corresponding vertical ribs 52, a lifting block 12 is arranged above the middle of the circular plate 1 and is used for being connected with the lifting end of lifting equipment, three lifting lugs 13 which are arranged around the circumference of the circular plate 1 in an array manner are arranged at the edge of the circular plate 1, one ends of three steel ropes 17 with the same length are connected to the lifting block 12, and the other ends of the three steel ropes with the same length hook the lifting lugs 13 through lifting hooks, so that the circular plate 1 is always in a horizontal stable state during lifting.
As shown in fig. 1, 3,5 and 6, six groups of positioning components 2 are arranged on the top surface of a circular plate 1 and respectively correspond to each positioning groove 11, each group of positioning components 2 comprises a movable block 21 which is arranged along the length direction of the corresponding positioning groove 11, the distance between each movable block 21 and the axis of the circular plate 1 is equal, a push rod 22 parallel to the length direction of the corresponding positioning groove 11 is arranged on the movable block 21 in a sliding way along the radial direction of the circular plate 1, a V-shaped plate 23 is arranged at one end of the push rod 22, which faces the axis of the circular plate 1, two inner side faces of the V-shaped plate 23 are arranged parallel to the axis of the circular plate 1, an opening of the V-shaped plate 23 is opposite to the axis of the circular plate 1, a support plate 24 is arranged at the other end of the push rod 22, and a first spring 25 is sleeved on the push rod 22 and connected between the support plate 24 and the movable block 21.
As shown in fig. 1, a driving mechanism 3 is provided on the disk 1 for driving all the movable blocks 21 to move synchronously toward the axis of the disk 1 and away from the axis of the disk 1.
As shown in fig. 1-3, the vertical rods 4 are rectangular rods, six vertical rods 4 are vertically arranged below the circular plate 1 and respectively correspond to the positioning grooves 11, the upper ends of the vertical rods 4 penetrate through the positioning grooves 11 and are connected to the movable blocks 21, one side, facing the axis of the circular plate 1, of each vertical rod 4 is provided with a pair of vertical clamping plates 41 which are arranged below the positioning grooves 11 and facing the length direction of the corresponding push rod 22, one side, facing the axis of the circular plate 1, of each vertical rod 4 is also provided with five pairs of bearing rods 42 which are arranged along the vertical array, each pair of bearing rods 42 is arranged below the clamping plates 41 and facing the length direction of the corresponding push rod 22, and the distances between the clamping plates 41 and the adjacent bearing rods 42 and the distances between the two adjacent pairs of bearing rods 42 are equal to the distances between the adjacent annular ribs 51.
As shown in fig. 1-7, when the bottom surface of the circular plate 1 is abutted against the annular rib 51 at the top end of the reinforcement cage 5, the top surfaces of the clamping plates 41 are flush with the annular rib 51 at the top end, the top surfaces of the bearing rods 42 of each pair are respectively flush with the other annular ribs 51, when the driving mechanism 3 drives the movable block 21 to centripetally move to the two inner sides of the V-shaped plate 23 and abutted against the vertical ribs, the axis of the circular plate 1 coincides with the axis of the reinforcement cage 5, the clamping plates 41 and the bearing rods 42 are respectively opposite to the vertical ribs 52, when the movable block 21 is continuously centripetally driven, the clamping plates 41 are inserted below the annular rib 51 at the top end and the vertical ribs 52 enter between the two clamping plates 41, and each bearing rod 42 is inserted below the corresponding annular rib and the vertical ribs 52 enter between the two corresponding bearing rods 42.
The working principle of the hoisting device will be described below with reference to the above structure:
In the pre-positioning stage, as shown in fig. 1-6, the lifting end of the lifting device moves the lifting block 12 to be right above the vertical cylindrical reinforcement cage 5 fixed through the fixing frame, the three steel ropes 17 horizontally lift the circular plate 1 above the reinforcement cage 5, the lifting end of the lifting device rotates the lifting block 12 so that each positioning groove 11 on the circular plate 1 is respectively aligned up and down with each vertical rib 52 of the reinforcement cage 5, meanwhile, the driving mechanism 3 drives each movable block 21 to be synchronously far away from the axis of the circular plate 1, drives the V-shaped plate 23 to be far away from the bottom of the corresponding positioning groove 11, namely, opens a channel of the vertical rib 52 vertically penetrating through the positioning groove 11, effectively avoids movement interference between the vertical rib 52 and the V-shaped plate 23 and the push rod 22, improves the reliability of the lifting device, then the lifting end of the circular plate 1 descends synchronously along with the lifting block 12, each vertical rib 52 penetrates through the corresponding positioning groove 11 and is positioned between the positioning groove 11 and the corresponding V-shaped plate 23, the lifting block 12 continuously descends so that the circular plate 1 is abutted against the annular rib 51 at the bottom surface of the reinforcement cage 5, and the top surface of the circular plate 1, namely, the top surface of the circular plate 1 and the preset bearing bar 41 and the top surface of the annular rib 41 are aligned with the top surface of the corresponding annular rib 41 and the corresponding annular rib 42, and the top surface of the annular rib 41 are aligned with the top surface of the preset bearing bar 42.
In the secondary positioning stage, as shown in fig. 1-7, after the pre-positioning is completed, the bottom surface of the circular plate 1 is kept in sliding contact with the top annular rib 51, the driving mechanism 3 drives each movable block 21 to synchronously move towards the axis of the circular plate 1, one side surface of each V-shaped plate 23 is firstly abutted against the corresponding vertical rib 52, as the driving mechanism 3 continues to drive each movable block 21 to centripetally move, the push rod 22 slides relative to the movable block 21, the first spring 25 stretches, the first spring 25 elastically supports the V-shaped plate 23, one side surface of the V-shaped plate 23 moves against the vertical rib 52, the vertical rib 52 relatively moves into an included angle of the V-shaped plate 23, the vertical rib 52 gives the counter force to the V-shaped plate 23, so that the circular plate 1 horizontally slides, the axis of the circular plate 1 gradually tends to coincide with the axis of the corresponding vertical rib 52, and when the driving mechanism 3 continues to drive each movable block 21 to centripetally move until the two inner side surfaces of each V-shaped plate 23 are abutted against the corresponding vertical rib 52, and each first spring 25 keeps static, namely, the axis of the circular plate 1 coincides with the axis of the corresponding vertical rib 5, and the clamping plate 41 and the bearing rod 42 are located outside the annular rib 51 and respectively face the corresponding vertical rib 52.
In the matching stage, as shown in fig. 1-6, after the secondary positioning is completed, the driving mechanism 3 continues to drive each movable block 21 to move centripetally, the push rod 22 slides relative to the movable block 21, the first spring 25 continues to stretch, the two inner sides of the V-shaped plate 23 are kept in abutting contact with the corresponding vertical ribs 52, each movable block 21 drives each vertical rod 4 to synchronously move towards the axis of the circular plate 1 until the clamping plates 41 are inserted below the top annular rib 51 and the vertical ribs 52 enter between the two clamping plates 41, each bearing rod 42 is inserted below the corresponding annular rib 51 and the vertical ribs 52 enter between the corresponding two bearing rods 42, at this time, the driving mechanism 3 stops and holds the movable block 21 to complete the matching stage, the top annular rib 51 is borne by the top surface of the clamping plate 41, the rest annular ribs 51 are borne by the corresponding bearing rods 42 respectively, and each pair of clamping plates 41 clamps the corresponding vertical ribs 52.
The lifting end of the lifting equipment drives the lifting block 12 to move upwards, the fixing frame is relieved at the same time, the circular plate 1 moves upwards along with the lifting block 12 to drive each vertical rod 4 to move upwards, the top surface of the clamping plate 41 bears the top end annular rib 51, each bearing rod 42 bears the rest annular ribs 51, the stress points on each annular rib 51 are arranged around the circumferential array of the annular rib, the stress is uniform, more stress points can effectively distribute the larger dead weight of the reinforcement cage 5, and the problem of deformation of the annular ribs 51 is effectively avoided; meanwhile, the clamping plates 41 clamp the vertical ribs 52, so that the vertical ribs 52 and the annular ribs 51 are integrally stressed and kept relatively static during hoisting, the influence of the dead weight of the vertical ribs 52 on binding points of the vertical ribs and the annular ribs 51 is effectively reduced, the problems of loose overall structure and geometric shape change of the steel reinforcement cage 5 are effectively solved, in addition, the first springs 25 enable the two inner sides of the V-shaped plates 23 to tightly abut against the corresponding vertical ribs 52 all the time during hoisting, so that the movement of the steel reinforcement cage 5 in the horizontal direction is limited, the movement of the steel reinforcement cage 5 in the vertical direction is limited by the circular plate 1 and the bearing rods 42, the steel reinforcement cage 5 is always kept in a stable vertical posture during hoisting, the hoisting stability of the hoisting device is effectively improved, the steel reinforcement cage 5 is conveniently placed in a hole of a pier, and the operation convenience of the hoisting device is effectively improved.
And in the lowering stage, the lifting end of the lifting equipment lifts the lifting block 12 above the pouring hole, the reinforcement cage 5 is aligned with the pouring hole, and then the reinforcement cage 5 is lowered, so that the problem that the reinforcement cage 5 collides with the inner wall of the pouring hole due to the fact that the lifting structure of the reinforcement cage 5 is stable, the whole structure of the reinforcement cage 5 is effectively prevented from deforming, and the pouring quality is improved. When the lifting device is separated from the reinforcement cage 5, only the motor 31 is required to drive the movable block 21 to be far away from the axis of the circular plate 1, so that the V-shaped plate 23 is separated from the vertical ribs 52, the clamping plates 41 are opened and are far away from the vertical ribs 52, and each bearing rod 42 is far away from the vertical ribs 52 until the clamping plates 41 and the bearing rods 42 are separated from the lower part of the annular ribs 51, and at the moment, the lifting device is separated from the reinforcement cage 5.
Specifically, as shown in fig. 5 and 6, six pairs of sliding rods 16 are arranged around the circumference of the circular plate 1, each pair of sliding rods 16 is respectively located at two sides of the corresponding positioning groove 11 and arranged along the length direction of the corresponding positioning groove, and the movable block 21 is slidably arranged on the corresponding pair of sliding rods 16. Through the guiding action of the sliding rod 16 on the movable block 21, the movable block 21 is enabled to run stably, so that the clamping plates 41 and the bearing rods 42 on the vertical rods 4 can be matched with the reinforcement cage 5 stably, and the reliability of the hoisting device is guaranteed.
Example 2
As a further embodiment of the foregoing embodiment 1, as shown in fig. 1-4, the driving mechanism 3 includes a motor 31 fixed at the bottom of the circular plate 1, the driving end of the motor coaxially passes through the circular plate 1 and is coaxially connected with a rotating plate 32 located above the circular plate 1, six arc holes 33 arranged around the circular plate 1 in a circumferential array are formed on the rotating plate 32, the extending direction of each arc hole 33 is the circumferential tangential direction around the circular plate 1 axis, the contour curvature center of each arc hole 33 deviates from the circular plate 1 axis, the distance between the outer end of each arc hole 33 and the circular plate 1 axis is greater than the distance between the inner end and the circular plate 1 axis, the top surface of each movable block 21 is provided with a guide rod 34 perpendicular to the circular plate 1, each guide rod 34 is respectively penetrated in the corresponding arc hole 33, and the outer wall of the guide rod 34 is always in sliding contact with the inner wall of the arc hole 33.
When the motor 31 drives the rotating plate 32 to rotate in the convex direction of the outline of the arc hole 33, the guide rod 34 moves to the outer end of the arc hole 33, the inner wall of the arc hole 33 acts on the guide rod 34 to enable the corresponding movable block 21 to be far away from the axis of the circular plate 1, and when the motor 31 drives the rotating plate 32 to rotate in the concave direction of the outline of the arc hole, the guide rod 34 moves to the inner end of the arc hole 33, and the inner wall of the arc hole 33 acts on the guide rod 34 to enable the corresponding movable block 21 to move towards the axis of the circular plate 1. Through the arrangement of the rotating plate 32 and under the cooperation of the arc-shaped holes 33 and the guide rods 34, the rotating motion of the rotating plate 32 can be converted into synchronous centripetal or centrifugal motion of each movable block 21, and the guide rods 34 can obtain larger radial displacement under the same rotating angle of the rotating plate 32, so that the driving displacement efficiency is higher and the synchronism is higher than that of the traditional linear mechanism, and the reliability and the automation degree of the hoisting device are further improved.
Preferably, in the lifting process, the first spring 25 is always in a stretched state, the guide rod 34 drives the rotating plate 32 to rotate in a reverse direction, so that each movable block 21 generates a centrifugal movement trend, that is, the lifting device has high requirement on self-locking property of the motor 31, and a motor with an electromagnetic brake, a worm and gear motor and the like can be adopted in application.
Example 3
As a further embodiment of the foregoing examples 1-2, as shown in fig. 1, 2, 5 and 6, a pair of mounting plates 43 are vertically disposed at one side of each vertical rod 4 along the length direction thereof, a pair of mounting rods 44 parallel to the vertical rods 4 and the circular plate 1 are disposed between the two mounting plates 43, a clamping plate 41 is slidably disposed on the mounting rods 44 toward one end of the vertical rod 4, two second springs 45 are sleeved on each mounting rod 44 and connected between the corresponding mounting plate 43 and the clamping plate 41, when the second springs 45 are in a natural state, the distance between the two clamping plates 41 is greater than the diameter of the vertical ribs 52, a plurality of engaging blocks 14 are disposed at the bottom of the circular plate 1 and around the circumferential array, each engaging block 14 is disposed at the bottom end of the corresponding positioning groove 11, a V-shaped groove 15 is disposed at one side of the corresponding positioning groove 11 along the length direction, and the opening of the V-shaped groove 15 is opposite to the pair of clamping plates 41.
When the lifting device is used, as shown in fig. 1-6, the second springs 45 are always in a natural state in the pre-positioning and secondary positioning stages, after the secondary positioning is completed, each pair of clamping plates 41 is positioned at the outer side of the annular rib 51 and faces against one vertical rib 52, then the driving mechanism 3 drives the movable block 21 to centripetally move, the vertical ribs 52 enter between the corresponding pair of clamping plates 41, along with the centripetally movement of the movable block 21 which is continuously driven, each vertical rod 4 is continuously closed towards the axis of the reinforcement cage 5, one ends of the two clamping plates 41 facing the axis of the circular plate 1 respectively abut against the two inner sides of the V-shaped groove 15, the acting force of the V-shaped groove 15 on the clamping plates 41 enables the two clamping plates 41 to be synchronously closed, and the second springs 45 stretch, so that the corresponding vertical ribs 52 are clamped. Through the arrangement of the clamping plate 41, the mounting rod 44 and the second spring 45 and under the cooperation of the clamping plate 41 and the V-shaped groove 15, the clamping plate 41 can automatically clamp the vertical ribs 52 in the process of entering the lower part of the top end annular rib 51 and the lower part of the rest annular ribs 51 by the bearing rod 42, the automation degree of the hoisting device can be further improved, and meanwhile, the second spring 45 automatically resets when the movable block 21 moves centrifugally, so that each pair of clamping plates 41 automatically opens, and the unpowered tripping of the clamping plate 41 and the vertical ribs 52 is realized.
Preferably, as shown in fig. 5-8, one end surface of each clamping plate 41 facing the axis of the circular plate 1 is an inclined surface 411 parallel to the inner side of the corresponding V-shaped groove 15, and when the movable block 21 moves centripetally, the inclined surface 411 is used for abutting against the inner side of the V-shaped groove 15 so as to push the two clamping plates 41 to fold along the mounting rod 44. Through the cooperation of inclined plane 411 and the medial surface of V type groove 15 for splint 41 receives the effort perpendicular to inclined plane 411 all the time, thereby make two splint 41 can slide the drawing in without the skew, guarantee splint 41 to the centre gripping stability of erectting muscle 52.
Preferably, as shown in fig. 2, the clamping surfaces of each pair of clamping plates 41 are provided with an anti-slip structure 46, which comprises a plurality of transverse lines 47 arranged in a vertical array along the clamping surfaces, the extending direction of the transverse lines 47 is perpendicular to the length direction of the clamping plates 41, when the two clamping plates 41 are folded to clamp the vertical ribs 52, the transverse lines 47 are used for being clamped into grooves of the surface threads of the vertical ribs 52, further, the cross sections of the transverse lines 47 can be set into saw-tooth shapes or wave shapes, when the vertical ribs 52 are clamped, the transverse lines 47 are clamped into the grooves of the surface threads of the vertical ribs 52 to form bidirectional mechanical interlocking, the positions of the vertical ribs 52 along the horizontal direction and the vertical direction are effectively limited, the clamping stability of the clamping plates 41 to the vertical ribs 52 is further improved, and the lifting stability of the lifting device is further improved.
The above description is only of the preferred embodiments of the present application and is not intended to limit the application, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit and scope of the application.