Self-unloading lifting device for steel beams and construction method thereof

Abstract

The present invention discloses a self-unloading lifting device for steel beams and a construction method thereof, which can effectively improve the installation efficiency of steel beams, can be recycled, and reduce the safety hazards of steel beam installation. On the other hand, the self-unloading lifting device for steel beams of the present invention can be made of factory standard parts and can be applied to steel beams of various specifications. The present invention solves the problem that the traditional steel beam lifting process method is time-consuming and labor-intensive and requires manual unhooking, which poses a safety hazard.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a self-unloading hoisting device for steel beams and a construction method thereof. Background Art

[0002] In the current existing steel structure construction, the common method of steel beam hoisting is: the steel beam is pre-set with hoisting holes or welded with lifting lugs, the hook is manually connected to the hoisting hole or lifting lug before lifting, the hook is fixed by manual tightening, and then the vertical transportation machinery is used to hoist to the floor and position where the steel beam is located. After the high-altitude steel beam is in place, the hook position is manually moved and the hook is removed.

[0003] The traditional steel beam lifting process requires pre-drilling or welding of lifting ears in the steel beams, which is time-consuming and labor-intensive. During on-site installation, the hooks need to be removed manually at high altitudes, which poses a safety hazard.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] In order to overcome the defects of the prior art, a self-unloading lifting device for steel beams and a construction method thereof are provided to solve the problem that the traditional steel beam lifting process is time-consuming and labor-intensive and requires manual unhooking, which poses a safety hazard.

[0006] In order to achieve the above object, a self-unloading lifting device for steel beams is provided, comprising:

[0007] A supporting member used for temporarily supporting the steel beam, wherein the two brackets arranged opposite to each other on the main structure are respectively detachably mounted with the supporting member;

[0008] The cam is connected with the support frame of the upper and lower frames, and the cam is connected with the support frame of the lower frame to form a support frame.

[0009] A accommodating box is arranged on the upper supporting plate, and a driving mechanism for driving the upper supporting plate and the lower supporting plate to slide relative to or away from each other is installed in the accommodating box. After the driving mechanism drives the upper supporting plate and the lower supporting plate to move relative to each other, the clamping plates at the tension ends of the upper supporting plate and the lower supporting plate are clamped on the steel beam so that the supporting flange is supported on the bottom of the steel beam. After the steel beam is hoisted and placed on the supporting parts of the two corbels, the driving mechanism drives the upper supporting plate and the lower supporting plate to move away from each other, so that the clamping plate and the supporting flange are respectively separated from the steel beam.

[0010] Furthermore, the first sliding groove is a dovetail groove, and the upper part and the lower part of the sliding member are respectively in a dovetail shape that matches the shape of the dovetail groove.

[0011] Further, an upper bar hole connected to the first slide groove is opened at the upper part of the upper supporting plate, a lower bar hole is opened at the lower part of the lower supporting plate, the upper bar hole and the lower bar hole are respectively arranged along the length direction of the first slide groove, the sliding member is opened with a vertical shaft hole, and the driving mechanism includes:

[0012] A rotating shaft is rotatably installed in the vertical shaft hole, the lower part of the rotating shaft extends into the lower bar hole, and the upper part of the rotating shaft extends into the upper bar hole;

[0013] A driving gear, the lower part and the upper part of the rotating shaft are coaxially connected with the driving gear respectively;

[0014] Racks, the upper bar hole and the lower bar hole are respectively fixed with the racks, the racks are arranged along the length direction of the first slide groove, the driving gear at the lower part of the rotating shaft is meshed with the rack in the lower bar hole, and the driving gear at the upper part of the rotating shaft is meshed with the rack in the upper bar hole;

[0015] The motor is installed in the accommodating box and is transmission-connected to the rotating shaft.

[0016] Furthermore, a slide bar is formed at the lower portion of the accommodating box, a second slide groove is formed at the upper portion of the upper supporting plate and is arranged in the same direction as the first slide groove, the slide bar is slidably arranged in the second slide groove, and a through hole is opened at the bottom of the accommodating box and is coaxially arranged with the upper portion of the rotating shaft, and the output end of the motor can be rotatably inserted into the through hole and is coaxially connected to the rotating shaft.

[0017] Furthermore, a top pressing rod for pressing against the top of the steel beam is liftably mounted at the lower end of the rotating shaft.

[0018] Furthermore, a threaded hole arranged along the axial direction of the rotating shaft is formed in the end surface of the lower end of the rotating shaft, and the ejector rod is a threaded rod, and the threaded rod is screwed into the threaded hole.

[0019] Furthermore, the supporting member includes:

[0020] Two bases are arranged opposite to each other, and the two bases are oppositely formed with receiving grooves, and the opposite sides of the corbel are respectively embedded in the receiving grooves of the two bases;

[0021] A tie rod tied to the two bases; and

[0022] A vertically arranged lifting jack is installed on the base, and the lifting jack is connected with a supporting plate for supporting the steel beam.

[0023] The present invention provides a construction method of a self-unloading lifting device for a steel beam, comprising the following steps:

[0024] The supporting members are respectively installed on the two brackets so that the two supporting members are arranged opposite to each other;

[0025] The beam attachment hanger is arranged on the steel beam so that the steel beam is embedded in the clamping space;

[0026] After the driving mechanism drives the upper bearing plate and the lower bearing plate to move relative to each other, the clamping plates at the tension ends of the upper bearing plate and the lower bearing plate are clamped on the steel beam so that the supporting flange is supported on the bottom of the steel beam;

[0027] Connecting the sling of the lifting machinery to the beam attachment sling;

[0028] The lifting machinery is lifted so that the two ends of the steel beam are respectively placed on the two supporting members, and the two ends of the steel beam are respectively arranged opposite to the two brackets;

[0029] After the steel beam is placed on the supporting member, the driving mechanism drives the upper bearing plate and the lower bearing plate to move away from each other, so that the clamping plate and the supporting flange are separated from the steel beam respectively.

[0030] The beneficial effect of the present invention is that the self-unloading lifting device for steel beams of the present invention can effectively improve the efficiency of steel beam installation, and can be recycled, reducing the safety hazards of steel beam installation. On the other hand, the self-unloading lifting device for steel beams of the present invention can be made of factory standard parts and can be applied to steel beams of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0032] Figure 1 The figure is a schematic structural diagram of a self-unloading lifting device for steel beams according to an embodiment of the present invention.

[0033] Figure 2 Schematic diagram of the structure of a supporting member according to an embodiment of the present invention.

[0034] Figure 3 It is a schematic structural diagram of a beam-attached hanger according to an embodiment of the present invention.

[0035] Figure 4 It is a front view of a beam attachment hanger according to an embodiment of the present invention.

[0036] Figure 5 It is a side view of a beam attachment hanger according to an embodiment of the present invention.

[0037] Figure 6 It is a schematic structural diagram of the bottom of the beam-attached hanger according to an embodiment of the present invention.

[0038] Figure 7 It is a schematic diagram of the internal structure of the beam attachment hanger according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] Reference Figures 1 to 7 As shown, the present invention provides a self-unloading lifting device for steel beams, comprising: a supporting member 1, a beam-attached lifting device 2 and a containing box 3.

[0042] The supporting member 1 is used to temporarily support the steel beam 42. The supporting member 1 and the two brackets 41 oppositely arranged on the main structure 4 are respectively detachably mounted with the supporting member 1.

[0043] In this embodiment, see Figure 1 The main structure is a steel column, and two opposite steel columns are equipped with steel brackets. The steel beam to be installed is installed between the two steel brackets. After the steel beam to be installed is hoisted between the two steel brackets, the two ends of the steel beam to be installed are placed on the supporting members on the two steel brackets respectively, and the supporting members are used to temporarily support the steel beam to be installed, so that the steel beam to be installed and the steel bracket are arranged in a position to be welded or connected in other ways.

[0044] The beam attachment hanger 2 includes an upper deck 21, a lower deck 22 and a sliding member 23. The lower deck 22 is arranged below the upper deck 21. The upper deck 21 is slidably connected to the lower deck 22 through the sliding member 23. In this embodiment, the upper deck and the lower deck slide relative to or opposite to each other along the width direction of the steel beam.

[0045] Specifically, the upper support plate 21 and the lower support plate 22 have a connecting end and a tension end opposite to each other, respectively. The connecting end of the upper support plate 21 and the connecting end of the lower support plate 22 are arranged opposite to each other. The connecting end of the upper support plate 21 and the connecting end of the lower support plate 22 are provided with a first slide groove opposite to each other. The tension end of the upper support plate 21 and the tension end of the lower support plate 22 are arranged back to back. The upper part of the sliding member 23 is slidably arranged in the first slide groove of the upper support plate 21, and the lower part of the sliding member 23 is slidably arranged in the first slide groove of the lower support plate 22. The sliding members are slidably connected to the upper support plate 21 and the lower support plate 22, respectively.

[0046] The upper deck 21 and the lower deck 22 are respectively arranged in the horizontal direction. Clamping plates 24 are respectively formed downward at the lower parts of the tension-bearing ends of the upper deck 21 and the lower deck 22. A clamping space for the steel beam 42 to be embedded is formed between the clamping plates 24 at the tension-bearing ends of the upper deck 21 and the lower deck 22. The clamping space is arranged along the axial direction of the steel beam 42. The clamping plate 24 is extended to form a supporting flange 25 for supporting the bottom of the steel beam 42.

[0047] The accommodating box 3 is arranged on the upper bearing plate 21. A driving mechanism for driving the upper bearing plate 21 and the lower bearing plate 22 to slide relative to or opposite to each other is installed in the accommodating box 3. The driving mechanism is used to adjust the size of the clamping space so that the two clamping plates are pressed against the opposite sides of the steel beam to lock the steel beam.

[0048] In this embodiment, after the driving mechanism drives the upper deck 21 and the lower deck 22 to move relative to each other, the clamping plates 24 of the tension-bearing ends of the upper deck 21 and the lower deck 22 are clamped on the steel beam 42 so that the supporting flange 25 is supported on the bottom of the steel beam 42. Afterwards, the steel beam is hoisted to the installation position (i.e., between the two steel brackets) by connecting the slings of the hoisting machinery to the beam-attaching hoist.

[0049] After the steel beam is hoisted to the installation station and the hoisted steel beam 42 is placed on the supporting parts 1 of the two corbels 41, the driving mechanism drives the upper supporting plate 21 and the lower supporting plate 22 to move away from each other, so that the clamping plate 24 and the supporting flange 25 are respectively separated from the steel beam 42, thereby realizing automatic unloading of the beam.

[0050] The self-unloading lifting device for steel beams of the present invention can effectively improve the efficiency of steel beam installation, and can be recycled, reducing the safety hazards of steel beam installation. On the other hand, the self-unloading lifting device for steel beams of the present invention can be made of factory standard parts and can be applied to steel beams of various specifications.

[0051] As a preferred embodiment, the drive mechanism signal is connected to a controller. The construction personnel control the drive mechanism through the controller to lock the beam or automatically unload the beam.

[0052] In this embodiment, the first sliding groove is a dovetail groove, and the upper and lower parts of the sliding member 23 are respectively in a dovetail shape that matches the shape of the dovetail groove.

[0053] As a preferred implementation, a plurality of sliding members are provided between the upper bearing plate and the lower bearing plate, and correspondingly, the number of the first sliding grooves is adapted to the number of the sliding members.

[0054] In this embodiment, the first slide groove of the upper supporting plate is located at the lower part of the upper supporting plate. An upper slot hole connected to the first slide groove is provided at the upper part of the upper supporting plate 21. The first slide groove of the lower supporting plate is located at the upper part of the lower supporting plate. A lower slot hole is provided at the lower part of the lower supporting plate 22. The upper slot hole and the lower slot hole are strip-shaped holes. The upper slot hole and the lower slot hole are respectively arranged along the length direction of the first slide groove. The sliding member 23 is provided with a vertical shaft hole.

[0055] The driving mechanism includes: a rotating shaft, a driving gear 32 , a rack 33 and a motor 34 .

[0056] The rotating shaft is rotatably installed in the vertical shaft hole of the sliding member. The lower part of the rotating shaft extends into the lower bar hole of the lower bearing plate. The upper part of the rotating shaft extends into the upper bar hole. The lower and upper parts of the rotating shaft of the driving gear 32 are coaxially connected with the driving gear 32 respectively. The upper bar hole and the lower bar hole are respectively fixed with a rack 33. The rack 33 is arranged along the length direction of the first slide groove. The driving gear 32 at the lower part of the rotating shaft is meshed with the rack 33 in the lower bar hole. The driving gear 32 at the upper part of the rotating shaft is meshed with the rack 33 in the upper bar hole. The motor 34 is installed in the accommodating box 3 and is transmission-connected to the rotating shaft.

[0057] Continue reading Figures 3 to 5 A slide bar 35 is formed at the lower part of the container box 3. A second slide groove is formed at the upper part of the upper support plate 21 in the same direction as the first slide groove. The slide bar 35 is slidably arranged in the second slide groove. A through hole is provided at the bottom of the container box 3 and is coaxially arranged with the upper part of the rotating shaft. The output end of the motor 34 is rotatably arranged in the through hole and is coaxially connected to the rotating shaft.

[0058] In this embodiment, the lower end of the rotating shaft is movably mounted with a press rod 311 for pressing against the top of the steel beam 42. After the clamping plate is clamped on the opposite sides of the steel beam, the press rod descends to press against the top of the steel beam.

[0059] As a preferred embodiment, a threaded hole arranged along the axial direction of the rotating shaft is formed in the end surface of the lower end of the rotating shaft. The pressing rod is a threaded rod. The threaded rod is screwed into the threaded hole. A lifting motor is installed in the threaded hole, and the output shaft of the lifting motor is coaxially connected to the threaded rod. The lifting motor and the motor of the driving mechanism are respectively connected to the controller by signals.

[0060] In this embodiment, see Figure 1 and Figure 2 The supporting member 1 includes: two bases 11, a tie rod 12, and a lifting jack 13.

[0061] The two bases 11 are arranged opposite to each other. The two bases 11 are formed with receiving grooves opposite to each other. The opposite sides of the corbel 41 are respectively embedded in the receiving grooves of the two bases 11. The tie rod 12 is tied to the two bases 11. The lifting jack 13 is arranged vertically. The lifting jack 13 is installed on a base 11. The lifting jack 13 is connected to a support plate 14 for supporting the steel beam 42.

[0062] In this embodiment, the steel beam is an I-beam. The opposite sides of the upper flange plate of the steel beam are respectively embedded in the receiving grooves of the two bases. A third base is arranged below one base. One side of the lower flange plate of the steel beam is embedded in the receiving groove of the third base, and the third base is fixedly connected to the base above it.

[0063] The present invention provides a construction method of a self-unloading lifting device for a steel beam, comprising the following steps:

[0064] S1: Install the supporting members 1 on the two brackets 41 respectively, so that the two supporting members 1 are arranged opposite to each other.

[0065] Before hoisting the steel beam, supporting members are respectively installed on the corbels of the main structure so that the support plates of the supporting members extend below the space between the two corbels.

[0066] S2: The beam attachment hanger 2 is arranged on the steel beam 42 so that the steel beam 42 is embedded in the clamping space.

[0067] In this embodiment, the number of the beam attachment hangers is two. The beam attachment hangers are arranged at the hanging points according to the positions of the hanging points.

[0068] S3: After the driving mechanism drives the upper bearing plate 21 and the lower bearing plate 22 to move relative to each other, the clamping plates 24 at the tension ends of the upper bearing plate 21 and the lower bearing plate 22 are clamped on the steel beam 42 so that the supporting flange 25 is supported on the bottom of the steel beam 42 .

[0069] After the clamping plate is clamped on the steel beam, the lifting motor drives the press rod so that the press rod is pressed against the top of the steel beam.

[0070] S4: Connect the lifting rope of the lifting machinery to the beam attachment lifting device 2.

[0071] S5: The lifting machine is used to lift the steel beam 42 so that the two ends of the steel beam 42 are respectively placed on the two supporting members 1 , and the two ends of the steel beam 42 are respectively arranged opposite to the two corbels 41 .

[0072] S6: After the steel beam 42 is placed on the supporting member 1, the driving mechanism drives the upper bearing plate 21 and the lower bearing plate 22 to move away from each other, so that the clamping plate 24 and the supporting flange 25 are separated from the steel beam 42 respectively.

[0073] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A self-unloading lifting device for steel beams, characterized in that: include: A supporting member used for temporarily supporting the steel beam, wherein the two brackets arranged opposite to each other on the main structure are respectively detachably mounted with the supporting member; The cam is configured to move the upper and lower members together so that the upper and lower members are in a position to move relative to each other and to move relative to each other, and the cam is configured to move the upper and lower members together so that the cam can move relative to each other. as well as A accommodating box is arranged on the upper supporting plate, and a driving mechanism for driving the upper supporting plate and the lower supporting plate to slide relative to or away from each other is installed in the accommodating box. After the driving mechanism drives the upper supporting plate and the lower supporting plate to move relative to each other, the clamping plates at the tension ends of the upper supporting plate and the lower supporting plate are clamped on the steel beam so that the supporting flange is supported on the bottom of the steel beam. After the steel beam is hoisted and placed on the supporting parts of the two corbels, the driving mechanism drives the upper supporting plate and the lower supporting plate to move away from each other, so that the clamping plate and the supporting flange are respectively separated from the steel beam.

2. The self-unloading lifting device for steel beams according to claim 1, characterized in that: The first sliding groove is a dovetail groove, and the upper part and the lower part of the sliding member are respectively in a dovetail shape that matches the shape of the dovetail groove.

3. The self-unloading lifting device for steel beams according to claim 1, characterized in that: The upper portion of the upper support plate is provided with an upper bar hole connected to the first slide slot, the lower portion of the lower support plate is provided with a lower bar hole, the upper bar hole and the lower bar hole are respectively arranged along the length direction of the first slide slot, the sliding member is provided with a vertical shaft hole, and the driving mechanism comprises: A rotating shaft is rotatably installed in the vertical shaft hole, the lower part of the rotating shaft extends into the lower bar hole, and the upper part of the rotating shaft extends into the upper bar hole; A driving gear, the lower part and the upper part of the rotating shaft are coaxially connected with the driving gear respectively; Racks, the upper bar hole and the lower bar hole are respectively fixed with the racks, the racks are arranged along the length direction of the first slide groove, the driving gear at the lower part of the rotating shaft is meshed with the rack in the lower bar hole, and the driving gear at the upper part of the rotating shaft is meshed with the rack in the upper bar hole; The motor is installed in the accommodating box and is transmission-connected to the rotating shaft.

4. The self-unloading lifting device for steel beams according to claim 3 is characterized in that: A slide bar is formed at the lower portion of the accommodating box, a second slide groove is formed at the upper portion of the upper supporting plate and is arranged in the same direction as the first slide groove, the slide bar is slidably arranged in the second slide groove, a through hole is formed at the bottom of the accommodating box and is coaxially arranged with the upper portion of the rotating shaft, and the output end of the motor is rotatably inserted into the through hole and is coaxially connected to the rotating shaft.

5. The self-unloading lifting device for steel beams according to claim 3, characterized in that: A pressing rod for pressing against the beam top of the steel beam is installed at the lower end of the rotating shaft in a liftable manner.

6. The self-unloading lifting device for steel beams according to claim 5, characterized in that: A threaded hole arranged along the axial direction of the rotating shaft is formed in the end surface of the lower end of the rotating shaft, and the ejector rod is a threaded rod, which is screwed into the threaded hole.

7. The self-unloading lifting device for steel beams according to claim 1, characterized in that: The supporting member comprises: Two bases are arranged opposite to each other, and the two bases are oppositely formed with receiving grooves, and the opposite sides of the corbel are respectively embedded in the receiving grooves of the two bases; A tie rod tied to the two bases; and A vertically arranged lifting jack is installed on the base, and the lifting jack is connected with a supporting plate for supporting the steel beam.

8. A construction method for a self-unloading lifting device for steel beams as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: The supporting members are respectively installed on the two brackets so that the two supporting members are arranged opposite to each other; The beam attachment hanger is arranged on the steel beam so that the steel beam is embedded in the clamping space; After the driving mechanism drives the upper bearing plate and the lower bearing plate to move relative to each other, the clamping plates at the tension ends of the upper bearing plate and the lower bearing plate are clamped on the steel beam so that the supporting flange is supported on the bottom of the steel beam; Connecting the sling of the lifting machinery to the beam attachment sling; The lifting machinery is lifted so that the two ends of the steel beam are respectively placed on the two supporting members, and the two ends of the steel beam are respectively arranged opposite to the two brackets; After the steel beam is placed on the supporting member, the driving mechanism drives the upper bearing plate and the lower bearing plate to move away from each other, so that the clamping plate and the supporting flange are separated from the steel beam respectively.

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