Positioning structure for steel box girder floating crane
By installing a detachable positioning unit at the bottom of the steel box girder and matching it with the docking unit on the slider, the problem of inaccurate positioning of the floating crane for the steel box girder was solved, improving construction efficiency and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional methods for positioning steel box girders using floating cranes are affected by wind and water flow, resulting in inaccurate positioning, requiring multiple operators, large errors, and complex hoisting processes that affect construction efficiency.
A detachable positioning unit is used to connect with the steel box girder. By matching the positioning unit with the docking unit, the steel box girder and the slider are accurately positioned. The positioning unit can be recycled, simplifying the construction process.
This improved the positioning accuracy and construction efficiency of steel box girder hoisting, reduced manpower requirements, lowered construction costs, and achieved the economy and practicality of the positioning unit.
Smart Images
Figure CN224031497U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to bridge construction technical field, concretely relates to a positioning structure for steel box girder floating crane. BACKGROUND
[0002] In the bridge construction process, often adopt floating crane to hoist steel box girde section and then carry out slip construction on support, so need to position steel box girde section on sliding block. The traditional method is to mark cross line on the bottom of steel box girde and sliding block, and use the method of two cross lines coinciding to position. When operating, need to use floating crane to hoist steel box girde section to the upper of sliding block, mark cross line on the bottom of steel box girde section and corresponding position of sliding block, then report to the hoisting commander by construction personnel. The commander gives orders to floating crane driver through intercom to adjust the left and right of floating crane, so that the cross line on the bottom of steel box girde section is aligned with the cross line of sliding block, then slowly falls. The slip construction personnel dynamically monitor the deviation of steel box girde section, and adjust the deviation in time to complete the positioning of steel box girde section.
[0003] However, this method has large swing in the hoisting process due to the influence of wind and water flow on floating crane, and the cross line position is not easy to position. Moreover, the front and back of the bottom of steel box girde need to be observed by personnel, and more construction personnel are needed. At the same time, the positioning accuracy of floating crane hoisting is not enough, the error is large, the time of steel box girde in place is long, and the working hours are wasted.
[0004] The document with authorized announcement number CN206843950U discloses a kind of hoisting steel box girde quick positioning device, floating crane, steel box girde, sliding block and slide, the steel box girde is hoisted on the floating crane, and is correspondingly located above sliding block, the sliding block is movably arranged on the slide, the steel box girde bottom spot welding has conical block, the sliding block top is provided with the conical groove corresponding with the conical block, the floating crane drives the steel box girde gradually close to the sliding block, the conical block is inserted into the conical groove accordingly.
[0005] Although the device reduces the positioning difficulty between steel box girde and sliding block, but in the mode of welding conical block at the lower end of hoisting steel box girde, after the sliding block is removed, the conical block loses effect, even still need to cut off the conical block protruding at the bottom of steel box girde, otherwise not only will affect the butt joint of steel box girde bottom and other structures, but also there is security risk. UTILITY MODEL CONTENTS
[0006] In view of the above problems, the purpose of the utility model is to provide a positioning structure for steel box girde floating crane, through the detachable connection mode of positioning unit and steel box girde, the positioning unit installed at the bottom of steel box girde can be easily removed, and the positioning unit can be recycled, with the advantages of convenient implementation and good economy.
[0007] To achieve the above object, the technical scheme of the utility model is as follows:
[0008] A positioning structure for steel box girder floating crane, including the positioning unit of setting in the bottom of steel box girder and the docking unit of setting on slider and with the positioning unit matching,
[0009] The positioning unit includes the mounting hole of setting in the bottom of steel box girder, the mounting column of being detachably connected with the mounting hole and the positioning block of being set at the end of mounting column;
[0010] The docking unit includes the positioning slot of setting on the upper end of slider and with the positioning block matching.
[0011] As a further preferred embodiment of the utility model, the positioning unit further includes a connecting plate disposed on the outer peripheral side of the end of the positioning block proximate to the mounting column, and a connecting hole disposed on the connecting plate; the docking unit further includes a connecting slot disposed on the upper surface of the slider, in communication with the positioning slot, and matching the connecting plate, and a connecting column disposed on the groove bottom surface of the connecting slot and matching the connecting hole.
[0012] As a further preferred embodiment of the utility model, the positioning unit further includes a side slot disposed on the upper surface of the connecting plate, in communication with the connecting hole; the connecting column includes a lower column body, and an upper column body hingedly connected to the upper end of the lower column body; when the upper column body is within an angle range of 70 degrees to 110 degrees with the lower column body, the upper column body is embedded into the side slot.
[0013] As a further preferred embodiment of the utility model, the positioning unit further includes a protrusion disposed on the groove side wall of the side slot; the protrusion is located at the upper end of the upper column body when the upper column body is embedded into the side slot.
[0014] As a further preferred embodiment of the utility model, the upper column body includes a main body connected to the lower column body, and a narrow section body disposed on the end of the main body distal to the lower column body.
[0015] As a further preferred embodiment of the utility model, the upper end of the lower column body is provided with two oppositely disposed fixing plates, and a fixing rod is disposed between the two fixing plates; the lower end of the upper column body is provided with a hole passage through which the fixing rod passes.
[0016] As a further preferred embodiment of the utility model, the positioning unit further includes a first fixing protrusion disposed on the inner hole wall of the mounting hole, and a second fixing protrusion disposed on the end side wall of the mounting column distal to the positioning block and mutually engaged with the first fixing protrusion.
[0017] As a further preferred embodiment of the present application, the mounting hole is located at the lower end of the reinforcing partition plate arranged on the inner bottom surface of the steel box girder.
[0018] As a further preferred embodiment of the present application, the positioning block is a tapered block, and the positioning groove is a tapered groove matched with the positioning block.
[0019] As a further preferred embodiment of the present application, the number of positioning units is at least four.
[0020] The present application has the following beneficial effects:
[0021] The positioning structure for the steel box girder floating crane provided by the present application can easily remove the positioning units installed at the bottom of the steel box girder through the detachable connection of the positioning units and the steel box girder, and the positioning units can be recycled, having the advantages of convenient implementation and good economy.
[0022] The positioning structure for the steel box girder floating crane provided by the present application can complete the locking of the positioning units after the connection of the positioning units and the docking units, so that the positioning units and the docking units form an integral whole, facilitating the integral removal and greatly simplifying the construction process, having the advantage of strong practicability. BRIEF DESCRIPTION OF DRAWINGS
[0023] ATTACHED Figure 1 The present application is a three-dimensional structure schematic diagram.
[0024] ATTACHED Figure 2 The present application is a structure schematic diagram under the front view angle.
[0025] ATTACHED Figure 3 The present application is a local structure schematic diagram A.
[0026] ATTACHED Figure 4 The present application is a connection schematic diagram of the positioning unit and the docking unit.
[0027] ATTACHED Figure 5 The present application is a structure schematic diagram of the positioning unit under the top view angle.
[0028] ATTACHED Figure 6 The present application is a structure schematic diagram of the docking unit under the top view angle.
[0029] ATTACHED Figure 7 The present application is a local structure schematic diagram B.
[0030] BRIEF DESCRIPTION OF DRAWINGS: steel box girder 1, sliding block 2, reinforcing partition plate a;
[0031] mounting hole 31, mounting column 32, positioning block 33, connecting plate 34, connecting hole 35, side slot 36, protrusion 37, first fixing protrusion 38, second fixing protrusion 39;
[0032] Positioning groove 41, connecting groove 42, connecting column 43;
[0033] Lower column body 431, upper column body 432, fixing plate 433, fixing rod 434, hole 435;
[0034] Main body 432a, narrow section body 432b. DETAILED DESCRIPTION
[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0036] In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance
[0037] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected: can be mechanically connected, or electrically connected: can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0038] It should be noted that the positioning structure provided by the present application is used in the floating process of the steel box girder. The steel box girder is a prior art structure, generally including a top plate, a bottom plate, a web plate, a transverse plate and the like, and the main body is generally made of Q345 or Q390 steel. The slider is also a prior art, generally used in combination with a slide and a pushing force structure, and is a core temporary device in the sliding construction of the steel box girder, mainly used for reducing friction resistance, achieving precise guidance and stable bearing. In the floating process, in addition to the positioning unit provided by the present application, the equipment required for lifting the steel box girder can include a lifting machine, a lifting device and the like. Since the above-mentioned equipment is commonly used in the art, it will not be described in detail.
[0039] As shown in the accompanying Figure 1As shown, the positioning structure for the steel box girder floating crane provided by the embodiment comprises positioning units arranged at the bottom of the steel box girder 1 and docking units arranged on the sliding blocks 2 and matched with the positioning units.
[0040] Preferably, the number of the positioning units is four, and the four positioning units are arranged symmetrically with the center line of the steel box girder 1, so as to ensure that the steel box girder 1 can be stably supported. In the case that the number of the positioning units is four, the number of the sliding blocks 2 is also four, and two sliding blocks 2 form a group, and each group of sliding blocks is equipped with a sliding channel, so that the sliding blocks can be slidably connected to the sliding channel.
[0041] The positioning unit comprises mounting holes 31 arranged at the bottom of the steel box girder 1, mounting columns 32 detachably connected with the mounting holes 31, and positioning blocks 33 arranged at the end of the mounting columns 32; and the docking unit comprises positioning grooves 41 arranged at the upper end of the sliding blocks 2 and matched with the positioning blocks 33.
[0042] By means of detachable connection between the positioning unit and the steel box girder, the positioning unit installed at the bottom of the steel box girder 1 can be easily removed, and the positioning unit can be recycled, which has the advantages of convenient implementation and good economy.
[0043] Further preferably, the mounting holes 31 are located at the lower end of the reinforcing partition plate a (i.e. the transverse partition plate in the prior art) arranged on the inner bottom surface of the steel box girder 1, so as to ensure that the opening of the mounting holes 31 will not affect the structural strength of the steel box girder.
[0044] Further preferably, the positioning block 33 is a conical block, and the positioning groove 41 is a conical groove matched with the positioning block 33, so as to ensure that the positioning block 33 can smoothly enter the positioning groove 41 during the lowering process of the steel box girder 1, thereby reducing the difficulty of positioning and docking.
[0045] Further preferably, as shown in the accompanying drawings, Figure 3 Further preferably, as shown in the accompanying drawings,
[0046] In some preferred embodiments, as shown in the accompanying drawings, Figure 2 ~In some preferred embodiments, as shown in the accompanying drawings, Figure 3As shown, the positioning unit further includes a connecting plate 34 disposed on the outer periphery of the end of the positioning block 33 near the mounting post 32, and a connecting hole 35 disposed on the connecting plate 34; the docking unit further includes a connecting groove 42 disposed on the upper surface of the slider 2, communicating with the positioning groove 41 and matching the connecting plate 34, and a connecting post 43 disposed on the bottom surface of the connecting groove 42 and matching the connecting hole 35.
[0047] The connecting plates 34 are flat plates, two in number, symmetrically distributed on both sides of the mounting columns 32. The number and position of the connecting grooves 42 correspond to the connecting plates 34. At least one connecting column 43 is provided on the bottom surface of each connecting groove 42, and its height should not exceed the upper end of the groove opening of the connecting groove 42. The number and position of the connecting holes 35 correspond to the connecting columns 43. By inserting the connecting columns 43 and the connecting holes 35, the connection strength between the positioning unit and the steel box girder 1 and the slider 2 can be further strengthened, ensuring the stability of the steel box girder 1 when it is driven by the slider 2.
[0048] In some preferred embodiments, as shown in the appendix Figure 3 ~Appendix Figure 7 As shown, the positioning unit further includes a side slot 36 disposed on the upper surface of the connecting plate 34 and communicating with the connecting hole 35; the connecting column 43 includes a lower column 431 and an upper column 432 hinged to the upper end of the lower column 431; when the angle between the upper column 432 and the lower column 431 is in the range of 70 degrees to 110 degrees (preferably 90 degrees), the upper column 432 is embedded in the side slot 36.
[0049] As an example of the hinged structure between the lower column 431 and the upper column 432 in this embodiment, the specific details are as follows: the upper end of the lower column 431 is provided with two oppositely arranged fixing plates 433, and a fixing rod 434 is provided between the two fixing plates 433; the lower end of the upper column 432 is provided with a channel 435 through which the fixing rod 434 passes.
[0050] It is worth noting that the articulation of the upper column 432 and the lower column 431 needs to be higher than the bottom surface of the side opening groove 36 in height, and the upper column 432 preferably at least partially exceeds the groove opening of the upper end of the connecting groove 42. The principle that can be achieved is that after the connecting plate 34 enters the connecting groove 42, the upper column 432 passes through the connecting hole 35 and the end abuts against the lower end of the steel box girder 1, and in the process of gradually increasing stress, the upper column 432 rotates and "falls" into the side opening groove 36 until it is completely embedded in the side opening groove 36, so that the "locking" of the positioning unit by the docking unit is completed, and the slider 2 and the positioning unit are connected to form a whole. At this time, only the connection strength of the slider 2 and the positioning unit needs to be greater than the connection strength between the positioning unit and the steel box girder 1, so that the slider 2 and the positioning unit can be removed as a whole after the steel box girder 1 moves to the specified position, greatly simplifying the process flow.
[0051] Further preferably, the positioning unit further comprises a protrusion 37 arranged on the groove side wall of the side opening groove 36; the protrusion 37 is located at the upper end of the upper column 432 when the upper column 432 is embedded into the side opening groove 36. The protrusion 37 can preferably be made of metal material, and the arrangement helps to improve the connection strength between the upper column 432 and the side opening groove 36.
[0052] Further preferably, the upper column 432 comprises a main body 432a connected with the lower column 431, and a narrow section body 432b arranged on the end of the main body 432a away from the lower column 431. Such arrangement is mainly used to reduce the difficulty of the upper column 432 entering the side opening groove 36, and reduce the precision requirement of construction.
[0053] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.
Claims
1. A positioning structure for a floating crane for a steel box girder, comprising a positioning unit disposed at the bottom of the steel box girder (1) and a docking unit disposed on a slider (2) and matched with the positioning unit, characterized in that: The positioning unit includes a mounting hole (31) at the bottom of the steel box girder (1), a mounting column (32) detachably connected to the mounting hole (31), and a positioning block (33) at the end of the mounting column (32). The docking unit includes a positioning groove (41) disposed on the upper end of the slider (2) and matched with the positioning block (33).
2. The positioning structure for a steel box girder floating crane according to claim 1, characterized in that: The positioning unit further includes a connecting plate (34) disposed on the outer periphery of the end of the positioning block (33) near the mounting post (32), and a connecting hole (35) disposed on the connecting plate (34); the docking unit further includes a connecting groove (42) disposed on the upper surface of the slider (2), communicating with the positioning groove (41) and matching the connecting plate (34), and a connecting post (43) disposed on the bottom surface of the connecting groove (42) and matching the connecting hole (35).
3. The positioning structure for a steel box girder floating crane according to claim 2, characterized in that: The positioning unit further includes a side slot (36) disposed on the upper surface of the connecting plate (34) and communicating with the connecting hole (35); the connecting column (43) includes a lower column (431) and an upper column (432) hinged to the upper end of the lower column (431); when the angle between the upper column (432) and the lower column (431) is in the range of 70 degrees to 110 degrees, the upper column (432) is embedded in the side slot (36).
4. The positioning structure for a steel box girder floating crane according to claim 3, characterized in that: The positioning unit also includes a protrusion (37) disposed on the side wall of the side slot (36); the protrusion (37) is located at the upper end of the upper column (432) when the upper column (432) is embedded into the side slot (36).
5. The positioning structure for a steel box girder floating crane according to claim 3, characterized in that: The upper column (432) includes a main body (432a) connected to the lower column (431) and a narrow section (432b) disposed at the end of the main body (432a) away from the lower column (431).
6. The positioning structure for a steel box girder floating crane according to claim 3, characterized in that: The lower column (431) has two oppositely arranged fixing plates (433) at its upper end, and a fixing rod (434) is provided between the two fixing plates (433); the upper column (432) has a channel (435) at its lower end for the fixing rod (434) to pass through.
7. The positioning structure for a steel box girder floating crane according to claim 1, characterized in that: The positioning unit further includes a first fixing protrusion (38) disposed on the inner wall of the mounting hole (31), and a second fixing protrusion (39) disposed on the end side wall of the mounting post (32) away from the positioning block (33) and engaged with the first fixing protrusion (38).
8. The positioning structure for a steel box girder floating crane according to claim 1, characterized in that: The mounting hole (31) is located at the lower end of the reinforcing partition (a) provided on the inner bottom surface of the steel box girder (1).
9. The positioning structure for a steel box girder floating crane according to claim 1, characterized in that: The positioning block (33) is a conical block, and the positioning groove (41) is a conical groove that matches the positioning block (33).
10. The positioning structure for a steel box girder floating crane according to claim 1, characterized in that: The number of positioning units is at least four.
Citation Information
Patent Citations
Quick positioner of hoist and mount steel case roof beam
CN206843950U