CN117842838B - Hoisting device for prefabricated stairway and hoisting method thereof - Google Patents
Hoisting device for prefabricated stairway and hoisting method thereof Download PDFInfo
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- CN117842838B CN117842838B CN202410250835.6A CN202410250835A CN117842838B CN 117842838 B CN117842838 B CN 117842838B CN 202410250835 A CN202410250835 A CN 202410250835A CN 117842838 B CN117842838 B CN 117842838B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 210000000078 claw Anatomy 0.000 claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 description 11
- 230000009471 action Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The application relates to the technical field of prefabricated part hoisting, in particular to a hoisting device and a hoisting method for prefabricated stairs. The hoisting device comprises a traction mechanism, a bearing column, a driving mechanism, a guide top plate and a hanging claw; one axial end of the bearing column is connected with a traction rope of the traction mechanism so as to lift by the driving of the traction rope in a working state; the driving mechanism is arranged on the bearing column; at least three guide top plates are movably connected with the bearing column and uniformly distributed along the circumferential direction of the bearing column, and each guide top plate is in transmission fit with the driving mechanism so as to be in rolling contact with the inner wall of the lifting hole along the radial direction of the bearing column; the lifting claw is movably connected with the bearing column and is in transmission fit with the driving mechanism so as to radially expand along the bearing column, wherein after the lifting claw is expanded, the lifting claw can be hooked on the prefabricated staircase when the bearing column is lifted. The application can reduce the manual participation in the hoisting process and can reduce the safety risk of staff.
Description
Technical Field
The application relates to the technical field of prefabricated part hoisting, in particular to a hoisting device and a hoisting method for prefabricated stairs.
Background
Prefabricated stairways are stairway structures prefabricated at the factory and then transported to the site for installation. They are typically made of concrete, steel or wood, of standardized size and design, capable of being installed quickly and meeting the requirements of building codes.
The prefabricated staircase has the advantages of quick installation, easy quality control, material saving and customization. In order to meet the hoisting requirement, hoisting holes are reserved at the top and the bottom of the prefabricated staircase respectively for hoisting by hoisting equipment. To prefabricated staircase's hoist and mount, current lifting device sets up the lifting hook as the member generally, with the lifting hole threaded connection of member and prefabricated staircase, but prefabricated staircase is used for installing between two-layer building, needs the staff to dismantle the member in the lifting hole after the prefabricated staircase installation is accomplished, has certain security risk in the dismantlement process.
Disclosure of Invention
The application provides a hoisting device and a hoisting method for a prefabricated staircase, which are characterized in that the prefabricated staircase is hooked by a controllable-action lifting claw so as to hoist the prefabricated staircase, and after the prefabricated staircase is hoisted, the hooking of the prefabricated staircase can be relieved by controlling the action of the lifting claw, so that the prefabricated staircase is prevented from being disassembled manually, and the safety risk of workers is reduced.
The application is realized by the following technical scheme:
In a first aspect, the present application provides a lifting device for a prefabricated staircase, comprising:
a traction mechanism;
The bearing column is connected with a traction rope of the traction mechanism at one axial end of the bearing column so as to lift under the working state by the driving of the traction rope;
the driving mechanism is arranged on the bearing column;
The guide top plates are movably connected with the bearing columns and uniformly distributed along the circumferential direction of the bearing columns, and each guide top plate is in transmission fit with the driving mechanism so as to be in rolling contact with the inner wall of the lifting hole along the radial direction of the bearing column;
The lifting claw is movably connected with the bearing column and is in transmission fit with the driving mechanism so as to radially expand along the bearing column, wherein after the lifting claw is expanded, the lifting claw can be hooked on a prefabricated staircase when the bearing column is lifted.
In some optional embodiments of the first aspect, the driving mechanism includes:
A driving source;
The driving screw is in transmission connection with the driving source;
The first movable nut is in transmission fit with the driving screw, a plurality of guide ejector rods are rotatably connected to the first movable nut, and each guide ejector rod is rotatably connected with the guide top plate;
the second movable nut is in transmission fit with the driving screw and is connected with the hanging claw through an expansion connecting rod;
The bearing column is provided with a driving cavity, the driving screw is coaxially inserted into the driving cavity and is rotationally connected with the bearing column, the first movable nut is positioned in the driving cavity, and the cavity wall of the driving cavity is provided with an ejector rod movable hole for the guide ejector rod to pass through.
In some optional embodiments of the first aspect, the first movable nut is sleeved with a first one-way bearing, and the first one-way bearing is configured with a first locking component for locking the rotatable direction;
The second movable nut is sleeved with a second one-way bearing, and the second one-way bearing is provided with a second locking component for locking the rotatable direction.
In some optional embodiments of the first aspect, a torsion spring is disposed between the guide ejector rod and the guide top plate, so that the plate surface of the guide top plate can be kept perpendicular to the length direction of the guide ejector rod.
In some optional embodiments of the first aspect, the guide top plate is configured as an arc plate adapted to the inner wall of the lifting hole, wherein a plurality of steel balls for rolling contact with the inner wall of the lifting hole are arranged on the arc plate through a groove locking ball process.
In some optional embodiments of the first aspect, the hanging claw includes at least three hanging rods uniformly distributed along a circumferential direction of the bearing column, one end of each hanging rod is rotatably connected with the bearing column, a middle part of each hanging rod is rotatably connected with one end of the expansion connecting rod, and the other end of the expansion connecting rod is rotatably connected with the second movable nut.
In some optional embodiments of the first aspect, a first ear plate and a second ear plate are disposed on the bearing post, one end of the boom is located between the first ear plate and the second ear plate and is respectively connected with the first ear plate and the second ear plate in a rotating manner through a first rotating shaft, and a bearing cavity is further disposed on the bearing post so that when the boom rotates, the boom end portion is enabled to move and forms a rotation limit to the boom end portion through a cavity wall, wherein a first buffer layer is respectively configured between the first rotating shaft and the first ear plate and between the first rotating shaft and the second ear plate.
In some optional embodiments of the first aspect, one end of the bearing column is connected with a bearing disc, a limiting column corresponding to the position of the hanging rod is arranged on the bearing disc, when the hanging claws are unfolded, each hanging rod can be respectively abutted to the limiting column, the expansion connecting rod is rotatably connected with the hanging rod through a second rotating shaft, and a second buffer layer is arranged between the second rotating shaft and the hanging rod.
In some optional embodiments of the first aspect, the load-bearing post is connected to the traction rope by a tightening mechanism; wherein, tight mechanism in top includes:
The connecting shell is fixedly connected with the bearing column;
The jacking driving assembly is positioned in the connecting shell;
The jack-up posts, at least three jack-up posts activity wear to establish on the connection shell and be the polygon and arrange, every jack-up post with tight drive assembly transmission is connected in order to be in tight drive assembly's of top drive down walk in the connection shell, the jack-up post is used for work as the carrier bar is located with the prefabricated stair is contradicted when in the hoist and mount hole.
In a second aspect, the present application provides a hoisting method for a prefabricated staircase, which is implemented based on the hoisting device for a prefabricated staircase according to the first aspect, and includes the following contents:
Enabling the bearing column to pass through the hoisting hole of the prefabricated staircase;
lifting the bearing column through the traction mechanism until the guide top plate is positioned in the lifting hole and the lifting claw is positioned outside the lifting hole;
the guide top plate is driven by the driving mechanism to act so as to enable the guide top plate to be in rolling contact with the inner wall of the lifting hole and enable the lifting claw to expand;
lifting the bearing column through the traction mechanism until the lifting claw is hooked on the prefabricated staircase;
moving the prefabricated staircase to the installation position;
lowering the carrying column through the traction mechanism to separate the lifting claw from the prefabricated staircase;
The lifting claw is driven to act through the driving mechanism so as to be folded;
and lifting the bearing column by the traction mechanism until the bearing column is separated from the lifting hole.
Compared with the prior art, the application has the following advantages and beneficial effects:
1. According to the application, the automatic expansion or the folding of the hanging claw can be realized through the driving mechanism, the centering of the hanging claw relative to the hanging hole can be ensured through the arrangement of the guide top plate, after the hanging of the prefabricated staircase is finished, the hanging claw is driven to act through the driving mechanism so as to release the hooking of the hanging claw to the prefabricated staircase, and then the whole hanging device is driven by the traction mechanism so as to be separated from the prefabricated staircase, so that the automatic disassembly of the hanging device is finished, and the safety risk of workers is greatly reduced.
2. According to the application, after the bearing column is arranged in the lifting hole in a penetrating way, the lifting claw can be automatically expanded by the driving of the driving mechanism, and the automatic matching of the lifting claw and the prefabricated staircase can be realized by matching with the traction mechanism, so that the installation process is simpler and more convenient.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present application, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a schematic structural view of a hoisting device for a prefabricated staircase according to an embodiment of the present application;
fig. 2 is a schematic structural view of a hoisting device for prefabricated stairway in a use state according to an embodiment of the present application;
FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 1;
FIG. 4 is a schematic view of a partial enlarged structure at B in FIG. 2;
FIG. 5 is a schematic view of a partial enlarged structure at C in FIG. 2;
fig. 6 is a schematic view of a partial cross-sectional structure of a first locking assembly according to an embodiment of the present application when the first locking assembly is engaged with a first one-way bearing.
In the drawings, the reference numerals and corresponding part names:
The device comprises a 1-bearing column, a 2-driving screw, a 3-guiding top plate, a 4-suspender, a 5-guiding ejector rod, a 6-first movable nut, a 7-second movable nut, an 8-driving cavity, a 9-ejector rod movable hole, a 10-expansion connecting rod, a 11-bearing cavity, a 12-bearing disc, a 13-connecting shell, a 14-ejector column, a 15-limiting column, a 16-second rotating shaft, a 17-second buffer layer, a 18-first rotating shaft, a 19-first buffer layer, a 20-first one-way bearing, a 21-adsorbing ring and a 22-iron core coil.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present application, the present application will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present application and the descriptions thereof are for illustrating the present application only and are not to be construed as limiting the present application.
In a first aspect, an embodiment of the present application provides a hoisting device for a prefabricated staircase, as shown in fig. 1 to 5, where the hoisting device for a prefabricated staircase includes a traction mechanism, a bearing column 1, a driving mechanism, a guide top plate 3 and a lifting claw.
The traction mechanism serves as a main power source in the hoisting process and can be configured as a crane.
The bearing column 1 can be configured to be cylindrical so as to be matched with a lifting hole on a prefabricated staircase, one axial end of the bearing column 1 is connected with a traction rope of a traction mechanism to lift under the working state by driving of the traction rope, wherein a plurality of lifting points can be arranged at one axial end of the bearing column 1, the plurality of lifting points are circumferentially distributed about the axis of the bearing column 1, and the plurality of lifting points are respectively connected with the traction rope.
The driving mechanism is arranged on the bearing column 1.
The number of the guide top plates 3 is at least three, the guide top plates 3 are movably connected with the bearing column 1 and are uniformly distributed along the circumferential direction of the bearing column 1, each guide top plate 3 is in transmission fit with the driving mechanism so as to be in rolling contact with the inner wall of the lifting hole along the radial direction of the bearing column 1, namely, the guide top plates 3 can be close to or far away from the inner wall of the lifting hole along the radial direction of the bearing column 1 under the driving of the driving mechanism, after all the guide top plates 3 are in rolling contact with the inner wall of the lifting hole, the bearing column 1 is limited in the radial direction of the guide top plates, and at the moment, the axis of the bearing column 1 coincides with the axis of the lifting hole.
The lifting claw is movably connected with the bearing column 1 and is in transmission fit with the driving mechanism so as to extend along the radial direction of the bearing column 1, wherein after the lifting claw extends, the lifting claw can be hooked on the prefabricated staircase when the bearing column 1 is lifted.
When the guide top plate 3 is in rolling contact with the inner wall of the lifting hole, the bearing column 1 is driven by the traction mechanism to act until the lifting claw is hooked with the prefabricated stair; after the prefabricated stairway is hoisted to the installation position, the traction mechanism is controlled to act, the bearing column 1 can freely fall due to the gravity action of the bearing column 1 and the rolling contact between the guide top plate 3 and the inner wall of the hoisting hole, namely, the lifting claw can be separated from the prefabricated stairway by itself, the driving mechanism is controlled to act, the guide top plate 3 moves towards the direction away from the inner wall of the hoisting hole under the driving of the driving mechanism, meanwhile, the lifting claw is folded, and after the lifting claw is folded to an expected state, the traction mechanism is controlled to act so as to pull the bearing column 1 out of the hoisting hole to realize the automatic separation of the hoisting device and the prefabricated stairway.
According to the embodiment of the application, through the arrangement of the guide top plate 3, after the hanging claw is expanded, the whole movement direction of the hanging claw can move along the axial direction of the lifting hole under the guide action of the guide top plate 3, so that the hanging claw can be stably hooked with the prefabricated staircase; and the inner wall of the guide top plate 3 and the inner wall of the lifting hole are in rolling contact, so that after the traction force of the traction mechanism is relieved, the bearing column 1 can freely fall under the action of self gravity, thereby realizing the separation of the lifting claw and the prefabricated staircase, and further realizing the automatic disassembly flow.
In some alternative embodiments of the first aspect, the drive mechanism may comprise a drive source, a drive screw 2, a first moveable nut 6 and a second moveable nut 7.
The driving source can be specifically configured as a rotating motor, and an output shaft of the driving source is coaxially connected with the driving screw 2, so that the driving screw 2 is driven by the driving source to realize autorotation motion.
The driving screw 2 can be rotatably arranged on the bearing column 1. Specifically, the bearing column 1 can be provided with a circular driving cavity 8 along the axial direction of the bearing column 1 from one end face, the driving screw 2 is coaxially inserted into the driving cavity 8 and is rotationally connected with the cavity bottom of the driving cavity 8, a rolling bearing can be arranged between the driving screw 2 and the cavity bottom to ensure the rotation fluency of the driving screw 2, the end face on the bearing column 1 can be connected with a top cover, the top cover is matched with the shaft hole of the driving screw 2, the rolling bearing can be arranged between the top cover and the driving screw 2 to ensure the rotation fluency of the screw, and the top cover can play a role in positioning the driving screw 2.
The first movable nut 6 is in transmission fit with the driving screw 2, a plurality of guide ejector rods 5 are rotatably connected to the first movable nut 6, each guide ejector rod 5 is rotatably connected with the guide top plate 3, the first movable nut 6 can be located in the driving cavity 8, ejector rod movable holes 9 with the same number as the guide ejector rods 5 are formed in the cavity wall of the driving cavity 8, one end of each guide ejector rod 5 is rotatably connected with the first movable nut 6, and the other end of each guide ejector rod 5 penetrates through the ejector rod movable hole 9 to be located outside the driving cavity 8 and rotatably connected with the guide top plate 3.
The second movable nut 7 is in transmission fit with the driving screw 2, and the second movable nut 7 is connected with the hanging claw through an expansion connecting rod 10.
In the initial state, the first movable nut 6 is positioned at a first position on the driving screw rod 2, at this time, the length direction of the guide ejector rod 5 forms an included angle with the length direction of the driving screw rod 2, and the inner side plate surface of the guide top plate 3 is attached to the outer wall surface of the bearing column 1; the driving screw rod 2 is driven to rotate, the first movable nut 6 moves to a second position on the driving screw rod 2 along the axial direction of the driving screw rod 2, an included angle between the length direction of the guide ejector rod 5 and the length direction of the driving screw rod 2 gradually becomes larger in the movement process of the first movable nut 6, meanwhile, the guide ejector rod 5 extends outwards through the ejector rod movable hole 9, the guide ejector plate 3 moves towards the inner wall direction of the lifting hole, when the first movable nut 6 moves to the second position, the length direction of the guide ejector rod 5 is perpendicular to the length direction of the driving screw rod 2, and at the moment, the guide ejector plate 3 is in rolling contact with the inner wall of the lifting hole. In the process that the first movable nut 6 moves from the first position to the second position, the second movable nut 7 simultaneously moves on the driving screw 2, the second movable nut 7 drives the lifting claw to expand through the transmission of the expansion connecting rod 10, and when the first movable nut 6 is located at the second position, the lifting claw is expanded to an expected state.
It can be understood that the ejector rod movable hole 9 in the embodiment of the application is an inclined hole to adapt to the initial state of the guide ejector rod 5; the diameter of the ejector rod movable hole 9 is larger than the maximum span of the section of the guide ejector rod 5 to adapt to the rotation state of the guide ejector rod 5, specifically, the guide movable hole is an elliptical hole, the hole of the guide movable hole is an inner hole in the driving cavity 8, the other hole is an outer hole, the centers of the inner hole and the outer hole are provided with a distance in the axial direction of the driving screw rod 2, the highest point of the inner hole is higher than the lowest point of the outer hole, and the distance between the two points is larger than or equal to the diameter of the guide ejector rod 5.
In some alternative embodiments of the first aspect, the first movable nut 6 is sleeved with a first one-way bearing 20, and the first one-way bearing 20 is provided with a first locking component for locking the rotatable direction, that is, the inner ring and the outer ring of the first one-way bearing 20 can be relatively fixed through the locking action of the first locking component; the second movable nut 7 is sleeved with a second one-way bearing, and the second one-way bearing is provided with a second locking component for locking the rotatable direction, namely, the inner ring and the outer ring of the second one-way bearing can be relatively fixed through the locking function of the second locking component.
As mentioned above, since the first movable nut 6 is located in the driving chamber 8, both the first locking assembly and the second locking assembly may be configured as electromagnets in practical implementation. Specifically, taking the first locking assembly as an example, referring to fig. 6, the first locking assembly includes a coil 22 with an iron core and an adsorption ring 21, the adsorption ring 21 is coaxially and fixedly connected to an inner ring of the first unidirectional bearing 20, the coil 22 with an iron core is elastically and slidably connected to an outer ring of the first unidirectional bearing 20, and after the coil 22 with an iron core is energized, the iron core can be adsorbed on the adsorption ring 21, so as to realize locking of the first unidirectional bearing 20; the second locking assembly has the same structure as the first locking assembly, and will not be described again.
Assuming that the rotatable directions of the first unidirectional bearing 20 and the second unidirectional bearing are clockwise, when the hoisting device is matched with the prefabricated staircase, the driving screw rod 2 is made to rotate anticlockwise, at the moment, the first movable nut 6 and the second movable nut 7 can move on the driving screw rod 2, the guide top plate 3 moves towards the direction close to the inner wall of the hoisting hole, and the hoisting claw is gradually unfolded; after the prefabricated staircase is hoisted, the second unidirectional bearing is locked through the second locking component, so that the driving screw rod 2 rotates clockwise, the second movable nut 7 can move on the driving screw rod 2, and the first movable nut 6 synchronously rotates along with the driving screw rod 2 due to the action of the first unidirectional bearing 20, namely the position of the guide top plate 3 is unchanged at the moment, and the guide top plate 3 can still be contacted with the inner wall of the hoisting hole after the lifting claw is folded, so that a guide effect can be provided for the bearing column 1 to be separated from the hoisting hole; after the bearing column 1 is separated from the lifting hole, the second locking component is used for unlocking the second one-way bearing, the first one-way bearing 20 is locked through the first locking component, the driving screw 2 rotates clockwise, the first movable nut 6 can move on the driving screw 2, so that the guide top plate 3 can move towards the direction close to the bearing column 1, and the second movable nut 7 can synchronously rotate along with the driving screw 2 under the action of the second one-way bearing, namely, the lifting claw does not have a folding trend at the moment; after the guide top plate 3 moves into place, the first locking assembly is unlocked from the first one-way bearing 20.
In some alternative embodiments of the first aspect, a torsion spring is disposed between the guide ejector 5 and the guide top plate 3 to enable the plate surface of the guide top plate 3 to be kept perpendicular to the length direction of the guide ejector 5. By the arrangement, the guide top plate 3 does not swing at will relative to the guide top rod 5 in the moving process, and the contact between the end surface of the guide top plate 3 and the inner wall of the lifting hole caused by overlarge swing amplitude can be prevented.
In some alternative embodiments of the first aspect, the guiding roof 3 is configured as an arc adapted to the inner wall of the hoisting hole, wherein the arc is provided with a number of steel balls for rolling contact with the inner wall of the hoisting hole by a groove locking ball process. The arrangement is that the guide top plate 3 is contacted with the inner wall of the lifting hole more stably, and the guide effect of the guide top plate 3 is improved.
In some alternative embodiments of the first aspect, the lifting claw may specifically include at least three lifting rods 4 uniformly distributed along the circumference of the bearing column 1, one end of each lifting rod 4 is rotatably connected with the bearing column 1, the middle part of each lifting rod 4 is rotatably connected with one end of the expansion connecting rod 10, and the other end of the expansion connecting rod 10 is rotatably connected with the second movable nut 7.
In some alternative embodiments of the first aspect, a first ear plate and a second ear plate are arranged on the bearing post 1 at intervals, one end of the suspension rod 4 is located between the first ear plate and the second ear plate and is respectively connected with the first ear plate and the second ear plate in a rotating way through a first rotating shaft 18, a bearing cavity 11 is further arranged on the bearing post 1 to enable the end part of the suspension rod 4 to move when the suspension rod 4 rotates and form a rotation limit on the end part of the suspension rod 4 through a cavity wall, that is to say, when the suspension claw is opened to a desired state, the end part of the suspension rod 4 is contacted with the cavity wall of the bearing cavity 11, and a first buffer layer 19 is respectively arranged between the first rotating shaft 18 and the first ear plate and the second ear plate. In this way, when the other end of the suspension rod 4 is hooked with the prefabricated staircase and bears force in the hoisting process, the connection point of the expansion connecting rod 10 and the suspension rod 4 is used as a fulcrum, and the first buffer layer 19 is respectively arranged between the first rotating shaft 18 and the first lug plate and between the first rotating shaft 18 and the second lug plate, so that the counter force is applied to the suspension rod 4 by the cavity wall of the bearing cavity 11 to limit the rotation of the suspension rod 4, and the first rotating shaft 18 has much smaller bearing force, so that the relative rotation smoothness of the suspension rod 4 and the bearing column 1 can be ensured.
In some alternative embodiments of the first aspect, one end of the carrying column 1 is connected with a carrying disc 12, a limiting column 15 corresponding to the position of the hanging rods 4 is arranged on the carrying disc 12, when the hanging claws are unfolded, each hanging rod 4 can be respectively abutted against the limiting column 15, wherein the expansion connecting rod 10 is rotatably connected with the hanging rod 4 through a second rotating shaft 16, and a second buffer layer 17 is arranged between the second rotating shaft 16 and the hanging rod 4. The arrangement is that the expansion connecting rod 10 basically does not provide lifting force in the lifting process, so that the rotation flow of the lifting rod 4 and the expansion connecting rod 10 is ensured, and the axial load of the driving screw rod 2 is greatly reduced.
In some alternative embodiments of the first aspect, the load column 1 is connected to the traction rope by a tightening mechanism; the jacking mechanism comprises a connecting shell 13, a jacking driving assembly and a jacking column 14; the connecting shell 13 is fixedly connected with the bearing column 1; the jacking driving assembly is positioned in the connecting shell 13; at least three jack posts 14 are movably arranged on the connecting shell 13 in a penetrating way and are distributed in a polygonal way, each jack post 14 is in transmission connection with the jacking driving assembly so as to penetrate through the connecting shell 13 under the driving of the jacking driving assembly, and the jack posts 14 are used for abutting against the prefabricated staircase when the bearing post 1 is located in the hoisting hole.
Wherein the jack drive assembly may be configured as a lead screw slider mechanism, with each jack post 14 being connected to a slider in the lead screw slider mechanism. The setting like this, when lifting claw and prefabricated staircase hook joint, can drive the action of jack-prop 14 through pushing up tight drive assembly so that jack-prop 14 pushes up tightly on prefabricated staircase, so be equivalent to prefabricated staircase by jack-prop 14 and lifting claw centre gripping to the situation that the lifting claw that leads to because of the vibration in the hoist and mount in-process bumps with prefabricated staircase can be avoided.
In a second aspect, an embodiment of the present application provides a hoisting method for a prefabricated staircase, implemented based on the hoisting device for a prefabricated staircase of the first aspect, where the hoisting method for a prefabricated staircase includes the following contents:
The bearing column 1 passes through the hoisting hole of the prefabricated staircase;
lifting the bearing column 1 through the traction mechanism until the guide top plate 3 is positioned in the lifting hole and the lifting claw is positioned outside the lifting hole;
The guide top plate 3 and the lifting claw are driven by the driving mechanism to act so as to enable the guide top plate 3 to be in rolling contact with the inner wall of the lifting hole and expand the lifting claw;
lifting the bearing column 1 through the traction mechanism until the lifting claw is hooked on the prefabricated staircase;
moving the prefabricated staircase to the installation position;
Lowering the carrying column 1 through the traction mechanism to enable the hanging claw to be separated from the prefabricated staircase;
The lifting claw is driven to act through the driving mechanism so as to be folded;
And lifting the bearing column 1 by the traction mechanism until the bearing column 1 is separated from the lifting hole.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (10)
1. A hoist device for prefabricated staircase, characterized in that includes:
a traction mechanism;
The bearing column (1) is connected with a traction rope of the traction mechanism at one axial end of the bearing column (1) so as to lift under the working state by the driving of the traction rope;
The driving mechanism is arranged on the bearing column (1);
The guide top plates (3) are movably connected with the bearing columns (1) and uniformly distributed along the circumferential direction of the bearing columns (1), and each guide top plate (3) is in transmission fit with the driving mechanism so as to be in rolling contact with the inner wall of the lifting hole along the radial direction of the bearing column (1);
the lifting claw is movably connected with the bearing column (1) and is in transmission fit with the driving mechanism so as to radially expand the bearing column (1), wherein after the lifting claw is expanded, the lifting claw can be hooked on a prefabricated staircase when the bearing column (1) is lifted.
2. Hoisting device for prefabricated stairway according to claim 1, characterised in that the drive mechanism comprises:
A driving source;
the driving screw (2) is in transmission connection with the driving source;
the first movable nut (6) is in transmission fit with the driving screw (2), a plurality of guide ejector rods (5) are rotatably connected to the first movable nut (6), and each guide ejector rod (5) is rotatably connected with the guide top plate (3);
The second movable nut (7) is in transmission fit with the driving screw (2), and the second movable nut (7) is connected with the hanging claw through an expansion connecting rod (10);
The bearing column (1) is provided with a driving cavity (8), the driving screw (2) is coaxially inserted into the driving cavity (8) and is rotationally connected with the bearing column (1), the first movable nut (6) is located in the driving cavity (8), and a push rod movable hole (9) for the guide push rod (5) to pass through is formed in the cavity wall of the driving cavity (8).
3. Hoisting device for prefabricated stairways according to claim 2, characterized in that the first movable nut (6) is sleeved with a first one-way bearing (20), the first one-way bearing (20) being provided with a first locking assembly for locking the rotatable direction;
the second movable nut (7) is sleeved with a second one-way bearing, and the second one-way bearing is provided with a second locking component for locking the rotatable direction.
4. Hoisting device for prefabricated stairway according to claim 2, characterized in that torsion springs are arranged between the guide ejector rods (5) and the guide top plate (3) to keep the plate surface of the guide top plate (3) perpendicular to the length direction of the guide ejector rods (5).
5. Hoisting device for prefabricated stairways according to claim 2, characterized in that the guiding roof (3) is configured as an arc adapted to the inner wall of the hoisting hole, wherein the arc is provided with a number of steel balls for rolling contact with the inner wall of the hoisting hole by means of a groove locking ball process.
6. Hoisting device for prefabricated stairway according to claim 2, characterized in that the hoisting claw comprises at least three hoisting rods (4) uniformly distributed along the circumference of the bearing column (1), one end of each hoisting rod (4) is rotationally connected with the bearing column (1), the middle part of each hoisting rod (4) is rotationally connected with one end of the corresponding expansion connecting rod (10), and the other end of the corresponding expansion connecting rod (10) is rotationally connected with the corresponding second movable nut (7).
7. Hoisting device for prefabricated stairway according to claim 6, characterized in that the bearing column (1) is provided with a first ear plate and a second ear plate which are arranged at intervals, one end of the hanging rod (4) is located between the first ear plate and the second ear plate and is respectively connected with the first ear plate and the second ear plate in a rotating way through a first rotating shaft (18), the bearing column (1) is further provided with a bearing cavity (11) for the hanging rod (4) to move at the end part when the hanging rod (4) rotates and form a rotating limit for the hanging rod (4) end part through a cavity wall, wherein a first buffer layer (19) is respectively arranged between the first rotating shaft (18) and the first ear plate and between the first ear plate and the second ear plate.
8. Hoisting device for prefabricated stairway according to claim 6, characterized in that one end of the bearing column (1) is connected with a bearing disc (12), a limit column (15) corresponding to the position of the hanging rod (4) is arranged on the bearing disc (12), when the hanging claw is unfolded, each hanging rod (4) can be respectively abutted to the limit column (15), wherein the expansion connecting rod (10) is rotatably connected with the hanging rod (4) through a second rotating shaft (16), and a second buffer layer (17) is arranged between the second rotating shaft (16) and the hanging rod (4).
9. Hoisting device for prefabricated stairways according to claim 1, characterized in that the load-bearing column (1) is connected to the traction rope by means of a tightening mechanism; wherein, tight mechanism in top includes:
The connecting shell (13), the connecting shell (13) is fixedly connected with the bearing column (1);
The jacking driving assembly is positioned in the connecting shell (13);
The jack-up posts (14), at least three jack-up posts (14) are movably worn to establish on the connection shell (13) and are polygon arrangement, every jack-up post (14) with tight drive assembly transmission is connected in order to push up tightly drive assembly's drive down walk in connection shell (13), jack-up post (14) are used for work as bear post (1) are located with prefabricated stair conflict when hoist and mount downthehole.
10. Hoisting method for prefabricated stairways, based on a hoisting device for prefabricated stairways according to any one of claims 1-9, characterized in that it comprises the following:
enabling the bearing column (1) to pass through a hoisting hole of the prefabricated staircase;
lifting the bearing column (1) through the traction mechanism until the guide top plate (3) is positioned in the lifting hole and the lifting claw is positioned outside the lifting hole;
The guide top plate (3) is driven by the driving mechanism to act so as to enable the guide top plate (3) to be in rolling contact with the inner wall of the lifting hole and enable the lifting claw to expand;
lifting the bearing column (1) through the traction mechanism until the lifting claw is hooked on the prefabricated staircase;
moving the prefabricated staircase to the installation position;
lowering the bearing column (1) through the traction mechanism so as to separate the lifting claw from the prefabricated staircase;
The lifting claw is driven to act through the driving mechanism so as to be folded;
and lifting the bearing column (1) through the traction mechanism until the bearing column (1) is separated from the lifting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410250835.6A CN117842838B (en) | 2024-03-06 | 2024-03-06 | Hoisting device for prefabricated stairway and hoisting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410250835.6A CN117842838B (en) | 2024-03-06 | 2024-03-06 | Hoisting device for prefabricated stairway and hoisting method thereof |
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| CN117842838A CN117842838A (en) | 2024-04-09 |
| CN117842838B true CN117842838B (en) | 2024-05-07 |
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| CN202410250835.6A Active CN117842838B (en) | 2024-03-06 | 2024-03-06 | Hoisting device for prefabricated stairway and hoisting method thereof |
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| CN (1) | CN117842838B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117842838A (en) | 2024-04-09 |
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