Lifting structure and beam falling construction equipment
By introducing safety bars and limit blocks into the lifting structure, the problem of loads falling due to rope breakage in lifting machinery is solved, achieving safety protection in the event of breakage.
Patent Information
- Application Number
- CN202520324725.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing lifting machinery lacks reliable safety devices when high-strength ropes break, leading to major safety accidents such as the falling of suspended loads.
A safety bar and a limiting block are introduced into the lifting structure. The safety bar is connected to the load-bearing beam, and the limiting block can be adjusted to restrict the vertical movement of the safety bar relative to the load-bearing beam, thus preventing the suspended object from falling.
When the rope breaks, the safety bar and limit block work together to prevent the suspended load from falling, improving construction safety and preventing accidents.
Smart Images
Figure CN223737487U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hoisting technology field, specifically, relates to a hoisting structure and fall beam construction equipment. BACKGROUND
[0002] Hoisting machinery is often used in industrial production equipment, mostly through steel wire rope, chain or other forms of high strength rope lifting or lowering heavy objects.
[0003] Some hoisting machinery in high strength rope breakage, through the sensor will detect this change, then the controller will immediately execute emergency braking action, to prevent the falling of the hanging object. However, for the serious rupture (such as more steel wire rope breakage), high strength rope breakage may lead to its loss of hanging capacity, cause the falling of the hanging object, major safety accidents, namely these hoisting machinery lack reliable safety device, prevent the falling of the hanging object due to high strength rope breakage. SUMMARY
[0004] The utility model solves the problem of how to set reliable safety device, prevent the falling of the hanging object due to rope breakage.
[0005] To solve the above problems, the utility model provides a hoisting structure and fall beam construction equipment.
[0006] Firstly, the utility model provides a hoisting structure, including bearing beam body, lifting mechanism and bumper, the bearing beam body is used for supporting the lifting mechanism, the lifting mechanism is used for lifting the hanging object through the rope, the bumper is vertically through the bearing beam body, the bottom end of the bumper is used for fixed connection with the hanging object, the bumper is located on the rod body above the bearing beam body and is provided with a limit block, the position of the limit block on the bumper is adjustable, the limit block is used for limiting the bumper vertically downward movement relative to the bearing beam body, thereby preventing the falling of the hanging object.
[0007] Optionally, the bumper and the limit block are connected through threads.
[0008] Optionally, the bumper is a straight rod, which is made of fine rolling threaded steel. The limit block includes a nut for threadedly engaging with the fine rolling threaded steel.
[0009] Optionally, when the rope normally hangs the hanging object, the limit block is higher than the corresponding contact limiting part on the bearing beam body by a set distance.
[0010] Optionally, the bumper has a plurality of rods, which are symmetrically arranged on both sides of the rope.
[0011] The second aspect of the utility model provides a fall beam construction equipment, including two hangers, each hanger includes two above-mentioned hoisting structure.
[0012] Optionally, the two bearing beam bodies of each hanger are arranged in parallel, and a plurality of cross beams are arranged between the two bearing beam bodies arranged in parallel; the bottom of each bearing beam body is provided with a plurality of supporting legs, so that one end of the bearing beam body is suspended for arranging the lifting mechanism.
[0013] Optionally, the bearing beam body is a box beam structure; the top plate of the bearing beam body is provided with an upper through hole on both sides of the lifting mechanism, and the bottom plate of the bearing beam body is provided with a lower through hole vertically opposite the upper through hole; the hole diameter of the upper through hole and the lower through hole is greater than the outer diameter of the bumper.
[0014] Optionally, the lifting mechanism comprises a continuous jack, a plurality of steel strands and a lifting appliance; the continuous jack is used for lifting the lifting appliance through the steel strands; and the lifting appliance is used for hanging the hoisted object.
[0015] Optionally, the lifting appliance is rotationally connected with the lifting lug on the hoisted object.
[0016] The hoisting structure has the following beneficial effects: the bumper and the limiting block are added to the existing hoisting machinery, and form a reliable safety device for preventing the hoisted object from falling; when the rope breaks and loses the ability to hang the hoisted object, that is, when the rope cannot bear the weight of the hoisted object, the hoisted object will move downward together with the bumper and the limiting block relative to the bearing beam body, and then the limiting block will be in contact with the bearing beam body, and the hoisted object will be pulled by the bumper, so that the falling accident of the hoisted object is prevented, and the safety of construction is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a hoisting structure schematic view of the utility model.
[0018] Figure 2 It is a fall beam construction equipment schematic view of the utility model.
[0019] Figure 3 It is Figure 2 It is a middle A-A sectional view.
[0020] Figure 4 It is Figure 2 It is a middle B-B sectional view.
[0021] Figure 5 It is a cross beam arrangement schematic view of the fall beam construction equipment of the utility model.
[0022] Figure 6 It is a lifting appliance structure schematic view of the fall beam construction equipment of the utility model.
[0023] Figure 7 It is the lifting device split structure schematic view of the falling beam construction equipment of the utility model.
[0024] Figure 8 It is the lifting lug structure schematic view of the falling beam construction equipment of the utility model.
[0025] Figure 9 For Figure 3 The local enlarged view at C.
[0026] Mark explanation:
[0027] 1, bearing beam body;2, lifting mechanism;20, traction fixed rope;21, continuous jack;22, steel strand;23, lifting device;231, top plate assembly;2311, first top plate;2312, first bottom plate;2313, first partition plate;232, bottom plate assembly;2321, second top plate;2322, second bottom plate;2323, second partition plate;233, side plate;234, rib plate;235, first lifting ring plate;24, tool anchor;25, pad;3, safety lever;4, limit block;5, lifting object;51, lifting lug;511, second lifting ring plate;512, reinforcing plate;52, rotating shaft;6, cross beam;61, attached beam;7, support leg;71, support;8, prefabricated beam body. Specific implementation
[0028] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings. Although some embodiments of the utility model are shown in the drawings, it should be understood that the utility model can be realized in various forms, and should not be interpreted as being limited to the embodiments described herein, on the contrary, these embodiments are provided to more thoroughly and completely understand the utility model. It should be understood that the drawings and embodiments of the utility model are only for illustrative purposes, and are not intended to limit the scope of protection of the utility model.
[0029] The term "comprising" and its variants used herein are open-ended, i.e. "including but not limited to"; the term "based on" is "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". Related definitions of other terms will be given in the following description. It should be noted that the "first", "second", etc. concepts mentioned in the utility model are only used to distinguish different devices, modules or units, and are not intended to limit the functions performed by these devices, modules or units in order or mutual dependence.
[0030] It should be noted that the modification of "one" and "multiple" mentioned in the utility model is illustrative rather than restrictive, and those skilled in the art should understand that unless explicitly indicated in the context, it should be understood as "one or more".
[0031] As Figure 1 shown, the utility model provides a kind of hoisting structure, including bearing beam body 1, lifting mechanism 2 and bumper 3;Bearing beam body 1 is used to support lifting mechanism 2;Lifting mechanism 2 is used to hoist object 5 by rope;Bumper 3 vertically passes through bearing beam body 1, and the bottom end of bumper 3 is used to be fixedly connected with object 5, and bumper 3 is located on the rod body above bearing beam body 1 and is provided with limit block 4;The position of limit block 4 on bumper 3 can be adjusted;Limit block 4 is used to limit by being contacted with bearing beam body 1, limit bumper 3 vertically downward movement relative to bearing beam body 1, to prevent object 5 from falling.
[0032] Bearing beam body 1 and lifting mechanism 2 are the basic structure of hoisting machinery.Bearing beam body 1 is the bearing beam structure in conventional hoisting machinery, and is used as the key component for supporting and transmitting weight, not only can bear the weight of lifting mechanism 2, but also can bear the weight of object 5, to ensure the stability and safety of hoisting machinery in hoisting process.In Figure 1 the embodiment, bearing beam body 1 is schematically shown as box beam structure, which can also be beam of other structural forms, and of course can also be other loadable support structure other than beam structure.Lifting mechanism 2 generally converts the power of motor or hydraulic motor into lifting movement of hook or other object taking device through specific transmission device and winding system, to realize the vertical lifting of object 5.Rope can be steel wire rope, steel strand rope, chain or other form of high-strength rope.
[0033] The hoisting structure adds bumper 3 and limit block 4 to existing hoisting machinery, and bumper 3 and limit block 4 constitute safety device for preventing object 5 from falling with bearing beam body 1.The specific working principle is as follows: when rope breaks and loses the ability to hang object 5, i.e., when rope cannot bear the weight of object 5 due to breakage, object 5 will fall with bumper 3 and limit block 4 moving vertically downward relative to bearing beam body 1, and then limit block 4 will be in contact with bearing beam body 1 to limit, and then object 5 is pulled by bumper 3 to prevent falling accident, to improve the safety of construction.
[0034] It should be noted that when the rope does not lose the ability to hang the hanging object 5, that is, the rope can bear the weight of the hanging object 5, the lifting mechanism 2 normally lowers the heavy object, and the position of the limiting block 4 needs to be adjusted in real time to avoid contact with the load beam body 1 to limit the lowering work. In addition, in order to ensure good effect of preventing the hanging object 5 from falling, the limiting block 4 cannot be adjusted too high from the load beam body 1 when lifting and lowering the hanging object 5. Therefore, when the rope does not lose the ability to hang the hanging object 5, that is, the rope normally hangs the hanging object 5, the limiting block 4 needs to maintain a set distance above the corresponding contact limiting part of the load beam body 1. The specific value of the set distance is designed according to the actual situation and should not be too large, and the position can be 5-15 cm.
[0035] Specifically, the adjustment of the limiting block 4 can be manually adjusted by workers, such as continuously following the lowering speed of the hanging object 5 to adjust the limiting block 4 to rise relative to the bumper 3 when lowering the hanging object 5; for example, continuously following the lifting speed of the hanging object 5 to adjust the limiting block 4 to descend relative to the bumper 3 when lifting the hanging object 5, and always maintaining the set distance between the limiting block 4 and the load beam body 1, so that the added safety device does not affect the normal lifting of the hanging object 5 and has good safety effect. Of course, the position adjustment of the limiting block 4 can also be automatically performed through a mechanical and electrical structure.
[0036] Alternatively, the bumper 3 and the limiting block 4 are connected through threads. The bumper 3 is provided with external threads and is screwed with the limiting block 4, and without external rotation torque, the two will not move axially relative to each other. The axial positioning of the limiting block 4 is reliable, and in the process of adjusting the position of the limiting block 4, the bumper 3 and the limiting block 4 also can respond to sudden situations of the hanging object 5 falling at any time to ensure construction safety. Moreover, when the limiting block 4 contacts and limits the load beam body 1, it is equivalent to applying a clamping force to the screwed threads, making the connection between the bumper 3 and the limiting block 4 more secure and having better anti-falling effect. In addition, the bumper 3 and the limiting block 4 are connected through threads, and it is very easy to manually or automatically adjust the position of the limiting block 4 on the bumper 3.
[0037] Alternatively, the bumper 3 is a straight rod made of precision rolled threaded steel; the precision rolled threaded steel can bear large load and high stress, and can be adapted to screw on a connector or nut with internal threads, which is reliable and easy to obtain.
[0038] Optionally, when the safety bar 3 is made of high-strength threaded steel, the limiting block 4 includes a nut for engaging with the threads of the high-strength threaded steel. Specifically, the limiting block 4 can be composed of multiple nuts connected in parallel, increasing the thread engagement length with the high-strength threaded steel, thereby increasing the load-bearing capacity. This ensures that the limiting block 4 is stably and reliably fixed on the safety bar 3, and that the contact limiting with the load-bearing beam 1 is also stably and reliably maintained. The limiting block 4 can also be a plate or block structure with an internal threaded hole, as long as it can be adapted to the threads of the safety bar 3. In addition, a reinforcing plate can be installed on the load-bearing beam 1 opposite the limiting block 4 to enhance the load-bearing capacity. The bottom end of the safety bar 3 can be fixed to the suspended object 5 in various ways, such as by welding or bolt tightening, as long as the connection strength is guaranteed.
[0039] Optionally, there are multiple safety bars 3. Multiple safety bars 3 can provide sufficient load-bearing capacity, ensuring that if the rope breaks and cannot support the weight of the suspended object 5, the safety bars 3 and the limiting block 4 can withstand the weight of the suspended object 5 and the impact of falling, preventing the suspended object 5 from falling. The specific number and thickness of the safety bars 3 need to be designed according to the weight of the suspended object 5. Figure 1 As shown, multiple safety bars 3 can be symmetrically arranged on both sides of the rope, which can provide a relatively uniform pulling force for the suspended object 5.
[0040] In addition, the supporting beam 1 is provided with a hole for the safety bar 3 to pass through vertically, so that the safety bar 3 can rise and fall freely relative to the supporting beam 1 as the load 5 is lifted and lowered, that is, the safety bar 3 will not interfere with the supporting beam 1. It should be noted that the cross-sectional size of the limiting block 4 is larger than the size of the hole to form a limiting structure.
[0041] like Figures 2-8 As shown in the figure, the beam lowering construction equipment provided in this embodiment of the utility model includes two hangers, each of which includes two of the above-mentioned lifting structures.
[0042] The beam-dropping construction technique involves first prefabricating the precast beam on the ground or in an independent location, then using lifting or transport equipment to adjust the beam above the installation position, and finally lowering the beam to the predetermined position for installation and fixation. This construction method has advantages such as high construction efficiency, alternating wet and dry conditions, and good quality control. The beam-dropping construction equipment of this utility model has a hanger at each end of the precast beam 8, and each hanger is equipped with two of the aforementioned lifting structures, i.e., two lifting points are arranged at each end of the precast beam 8. Each lifting point has a safety device consisting of a safety rod 3 and a limiting block 4, ensuring stable and reliable lifting of the precast beam 8 and high construction safety.
[0043] Optionally, the two load-bearing beam bodies 1 of each hanger are arranged in parallel, and several cross beams 6 are arranged between the two parallel load-bearing beam bodies 1, so that the structure of the entire hanger is more stable; the bottom of each load-bearing beam body 1 is provided with several supporting legs 7, so that one end of the load-bearing beam body 1 is suspended for setting the lifting mechanism 2.
[0044] As shown in Figures 2-4 , a hanger structure using three cross beams 6 and four supporting legs 7 is shown. Specifically, the three cross beams 6 are all arranged perpendicularly to the load-bearing beam body 1, one of which is arranged between the suspended ends of the load-bearing beam body 1, and on the outside of each load-bearing beam body 1, there is a cross beam 61 opposite to the cross beam 6, and the beam body of the cross beam 61 is also perpendicular to the load-bearing beam body 1. The lifting mechanism 2 is arranged at the suspended end of the load-bearing beam body 1, so that four traction fixing ropes 20 can be evenly arranged around the lifting mechanism 2 to keep the lifting mechanism 2 running smoothly. The two supporting legs 7 are supported on the support 71 or the ground, etc., to support the load-bearing beam body 1 at one end, and the precast beam body 8 can be lowered.
[0045] Optionally, the load-bearing beam body 1 is a box beam structure, which is welded into a box shape using steel plates to improve strength and rigidity. Inside the load-bearing beam body 1, partitions, stiffening ribs, etc. can be arranged to enhance its torsional strength and stability.
[0046] Optionally, as shown in Figure 2 , the precast beam body 8 adopts a steel box beam. When the bottom end of the safety bar 3 using a finished rolling threaded rod is fixedly connected, the following method can be used: first, a hole is opened in the top plate of the precast beam body 8, then the bottom end of the safety bar 3 is inserted into the top plate of the steel box beam, and then nuts are used to tighten and fix the safety bar 3 from the top and bottom of the top plate.
[0047] Optionally, the top plate of the load-bearing beam body 1 is provided with an upper through hole on both sides of the lifting mechanism 2, and the bottom plate of the load-bearing beam body 1 is provided with a lower through hole vertically opposite to the upper through hole. The hole diameter of the upper through hole and the lower through hole is larger than the outer diameter of the safety bar 3, so that the safety bar 3 can pass through the load-bearing beam body 1 vertically and freely. In addition, because the safety bar 3 is vertically inserted into the upper through hole and the lower through hole, the shaking of the hoisted object 5 can also be reduced through the interference with the hole wall. When the safety bar 3 is a threaded rod, the outer diameter is the major diameter and the nominal diameter. As shown in Figure 2 and Figure 4 , two groups of safety bars 3 are arranged on both sides of the lifting mechanism 2 along the length direction of the load-bearing beam body 1.
[0048] Optionally, the lifting mechanism 2 includes a continuous jack 21, a plurality of steel strands 22 and a lifting device 23; the continuous jack 21 is used to lift the lifting device 23 through the steel strands 22; the lifting device 23 is used to hang the hoisted object 5.
[0049] Steel wire rope and steel strand rope can be collectively referred to as steel wire rope or steel wire cable, both of which are made of steel wire and have high strength, wear resistance and flexibility, etc. They play an important role in lifting, traction and fixing operations. A tool anchor 24 is arranged at the bottom end of the steel strand 22, that is, the ends of the plurality of steel strands 22 are fastened together by the tool anchor 24, the tool anchor 24 is clamped in the lifting appliance 23, and then the loading is realized.
[0050] Optionally, the lifting appliance 23 is rotatably connected with the lifting lug 51 on the hoisted object 5, and can be connected through a rotating shaft 52. In this way, the hoisted object 5 is allowed to sway within a small range during hoisting, which helps to disperse stress and reduce the risk of damage to the hoisted object 5, the lifting appliance or the crane caused by instantaneous impact when the hoisted object 5 is suddenly stressed or unbalanced.
[0051] Optionally, as shown in Figure 6 and Figure 7 , the lifting appliance 23 is welded by a plurality of steel plates, including a top plate assembly 231, a bottom plate assembly 232, two side plates 233, four rib plates 234 and two first lifting ring plates 235. The top plate assembly 231 and the bottom plate assembly 232 are arranged vertically opposite to each other, and are fixedly connected by one side plate 233 on each side; the two first lifting ring plates 235 are arranged at the bottom of the bottom plate assembly 232 in a spaced manner; the rib plates 234 are arranged symmetrically on the outer side of the side plate 233, and extend downward to connect the corresponding first lifting ring plate 235.
[0052] The top plate assembly 231 includes a first top plate 2311, a first bottom plate 2312 and four first partition plates 2313. The plate surfaces of the first top plate 2311 and the first bottom plate 2312 are horizontal and vertically opposite. The plate surfaces of the four first partition plates 2313 are vertical and used for connecting the first top plate 2311 and the first bottom plate 2312. The middle part of the plate surface of the first top plate 2311 and the first bottom plate 2312 is provided with a through hole for the steel strand 22 to pass through, and the middle part of the four first partition plates 2313 surrounds a cavity for the steel strand 22 to pass through. The tool anchor 24 is attached to the bottom surface of the first bottom plate 2312, Figure 6 and Figure 7 The first bottom plate 2312 is a double-layer plate.
[0053] Optionally, as shown in Figure 9As shown, the tool anchor 24 is provided with a spacer plate 25 between the first bottom plate 2312, the spacer plate 25 is composed of two upper and lower plates stacked, and the bottom surface of the upper plate is a concave spherical surface, and the top surface of the lower plate is a convex spherical surface, and the two spherical surfaces are adapted to each other and overlap. That is, the spacer plate 25 includes a matching concave surface and a convex surface, and the concave surface and the convex surface can rotate relative to each other. During the falling beam process, due to various factors such as hydraulic pressure changes, etc., there may be a slight asynchronization among the four continuous jacks 21, and the steel strand 22 will be slightly tilted. At this time, the convex surface of the spacer plate 25 is slightly rotated along the concave surface, so that the steel strand 22 is again in a vertical state, and the prefabricated beam body 8 is kept stable.
[0054] The bottom plate assembly 232 includes a second top plate 2321, a second bottom plate 2322, and four second partition plates 2323. The plate surfaces of the second top plate 2321 and the second bottom plate 2322 are both horizontal and vertically opposite; the plate surfaces of the four second partition plates 2323 are all vertical, and are used to connect the second top plate 2321 and the second bottom plate 2322.
[0055] The plate surface of the first lifting ring plate 235 is vertical, and a horizontal through hole is formed in the plate body for inserting a pin shaft.
[0056] Optionally, as shown in the drawings, Figure 8 The lifting lug 51 includes a second lifting ring plate 511 and a plurality of reinforcing plates 512. The plate surface of the second lifting ring plate 511 is vertical, and a horizontal through hole is formed in the plate body for inserting a pin shaft. The second lifting ring plate 511 is used to be inserted between the two first lifting ring plates 235, and then the three are connected through the pin shaft. The plate surface of the reinforcing plate 512 is perpendicular to the second lifting ring plate 511, and the reinforcing plate 512 and the second lifting ring plate 511 can be welded and fixed on the prefabricated beam body 8 of the steel box girder when in use.
[0057] Although the utility model discloses as above, the protection scope of the utility model is not limited to this. The person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will all fall within the protection scope of the utility model.
Claims
1. A hoisting structure, characterized in that, The lifting structure comprises a bearing beam body (1), a lifting mechanism (2) and a bumper bar (3); the bearing beam body (1) is used for supporting the lifting mechanism (2); the lifting mechanism (2) is used for lifting a hoisted object (5) through a rope; The bumper bar (3) vertically penetrates the bearing beam body (1), the bottom end of the bumper bar (3) is used for fixedly connecting with the hoisted object (5), and a limiting block (4) is arranged on the rod body above the bearing beam body (1). The position of the limiting block (4) on the bumper bar (3) is adjustable; the limiting block (4) is used for limiting the bumper bar (3) from vertically moving downward relative to the bearing beam body (1) through contact with the bearing beam body (1), thereby preventing the hoisted object (5) from falling.
2. A hoisting arrangement according to claim 1, characterised in that The bumper bar (3) and the limiting block (4) are connected through threads.
3. A hoisting arrangement according to claim 2, characterised in that The bumper bar (3) is a straight rod and is made of a precision-rolled threaded steel.
4. The hoisting arrangement of claim 1, wherein, When the rope normally hangs the hoisted object (5), the limiting block (4) is arranged at a distance above the corresponding contact limiting part on the bearing beam body (1).
5. The hoisting arrangement of claim 1, wherein, The bumper bar (3) comprises a plurality of rods and is symmetrically arranged on both sides of the rope.
6. A beam lowering construction apparatus characterized by, The lifting structure comprises two lifting frames, each of which comprises two lifting structures as claimed in any one of claims 1-5.
7. The beam launching apparatus according to claim 6, wherein The two bearing beam bodies (1) of each lifting frame are arranged in parallel, and a plurality of cross beams (6) are arranged between the two parallel bearing beam bodies (1); the bottom of each bearing beam body (1) is provided with a plurality of supporting legs (7), so that one end of the bearing beam body (1) is suspended for arranging the lifting mechanism (2).
8. The beam launching apparatus according to claim 6, wherein The bearing beam body (1) is a box-shaped beam structure; the top plate of the bearing beam body (1) is provided with an upper through hole on both sides of the lifting mechanism (2), the bottom plate of the bearing beam body (1) is vertically provided with a lower through hole opposite the upper through hole, and the diameters of the upper through hole and the lower through hole are greater than the outer diameter of the bumper bar (3).
9. The beam launching apparatus according to claim 6, wherein The lifting mechanism (2) comprises a continuous jack (21), a plurality of steel wires (22) and a lifting tool (23); the continuous jack (21) is used for lifting the lifting tool (23) through the steel wires (22); and the lifting tool (23) is used for hanging the hoisted object (5).
10. The beam launching apparatus according to claim 9, wherein The lifting tool (23) is rotatably connected with a lifting lug (51) on the hoisted object (5).