Rapid blanking device for bridge steel strand

Abstract

A bridge steel strand rapid blanking device belongs to the technical field of bridge prestress construction and comprises a movable steel body frame, the top of the steel body frame is detachably connected with a rainproof assembly, a steel strand is fixed in the steel body frame through a connecting assembly, the steel body frame is further provided with a cutting machine, the cutting machine is arranged at the wire outlet end of the steel strand, and the cutting machine is connected with the rainproof assembly. A distance measuring instrument is arranged below the wire outlet end of the steel strand and comprises two symmetrically-arranged erecting plates, and a tape capable of rotating circumferentially is arranged between the two erecting plates. The device disclosed by the utility model can be moved, and the blanking length can be directly measured by using the range finder, so that the construction efficiency is improved, and the time waste is reduced. Meanwhile, the rainproof assembly can effectively prevent the steel strand from being eroded by rainwater, and the material utilization rate is increased; the whole structure is simple, mounting and dismounting are easy, and storage is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge prestressed construction, relates to a safe technology for rapid unloading of steel strands in bridge engineering prestressed construction, and particularly relates to a rapid unloading device for bridge steel strands. Background Art

[0002] Nowadays, with the rapid economic development, the transportation industry has been promoted. More and more roads are being newly built and expanded, and the proportion of bridges is also on the rise. At the same time, the proportion of large-span bridges is also increasing. Large-span bridges cannot be separated from prestressed bridges.

[0003] The traditional steel strand cutting device is a simple steel section welding, which cannot move freely without the assistance of lifting equipment. After the cutting is completed, the steel strand and the cutting machine need to be covered with colored strips to prevent rain. Repeated pulling, coupled with the sharp steel sections and steel strands, the colored strips are easily damaged, resulting in a large waste of materials. When cutting, it is necessary to carry a tape measure to determine the cutting length, which is very troublesome.

[0004] Therefore, a device is needed that can carry the steel strand and move freely, has its own rainproof function, and integrates measurement and cutting. Summary of the invention

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to provide a rapid unloading device for bridge steel strands, which is used to solve the technical problems in the prior art that the steel strand unloading device cannot move freely, the unloading length measurement is troublesome, the rainproof operation is troublesome and the rainproof material is easily damaged.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a rapid unloading device for bridge steel strands, comprising a movable steel frame, the top of the steel frame is detachably connected to a rainproof component, the steel strand is fixed in the steel frame through a connecting component, the steel frame is also provided with a cutting machine, the cutting machine is arranged at the outlet end of the steel strand, a distance meter is arranged below the outlet end of the steel strand, the distance meter comprises two symmetrically arranged frame plates, and a circularly rotatable tape measure is arranged between the two frame plates.

[0007] Preferably in any of the above schemes, the steel frame includes four rectangular supporting uprights, each supporting upright has a lifting lug welded to the inner side of the web at the top, three cross bars are arranged between the left and right supporting uprights, and two auxiliary uprights are arranged between two adjacent cross bars.

[0008] Preferably in any of the above schemes, the supporting uprights include supporting channel steels, limiting buckles are welded on both sides of the supporting channel steels, two strip holes are cut at the upper and lower ends of the supporting channel steels respectively, and an end sealing plate is welded at the bottom of the supporting channel steels.

[0009] Preferably in any of the above schemes, the rainproof component includes two triangularly arranged plastic plates, two groups of parallel cross bars are arranged between the two plastic plates, the cross bars in the same group are connected by side cross bars, at least two upper vertical bars are arranged between the two groups of cross bars, four lower vertical bars are fixedly connected to the bottom of the lower cross bars, buckles are welded to the bottom of the lower vertical bars, and the buckles are detachably inserted in the hanging ears.

[0010] Preferably in any of the above solutions, the rainproof assembly further comprises a retractable tarpaulin, the tarpaulin is wound around a tarpaulin hanger, and the tarpaulin hanger is welded and fixed to the front crossbar and the side crossbar.

[0011] Preferably in any of the above schemes, a cutting machine fixing rod is welded to the lower auxiliary upright rod, a cutting machine fixing plate is detachably connected to the cutting machine fixing rod, and the cutting machine is fixedly arranged on the cutting machine fixing plate.

[0012] Preferably in any of the above schemes, holes are symmetrically opened on the two middle cross bars, and a positioning tube for leading out the steel strands is fixedly connected to the hole of one of the cross bars.

[0013] Preferably in any of the above schemes, the rangefinder is fixed to the bottom cross bar through a rangefinder fixing rod, the rangefinder fixing rod is detachably connected to a base plate, the two stand plates are fixedly connected to the base plate, holes are opened at the centers of the two stand plates, bearings are welded and fixed in the holes, the tape measure is driven to rotate by a rocker, and one end of the rocker passes through two bearings and the middle part of the tape measure and is welded to the inner wall of the bearing.

[0014] Preferably in any of the above schemes, the connecting assembly includes a screw rod, which passes through the strip holes of two supporting uprights in sequence, and two groups of pads are sleeved on the screw rod, and each group of the pads includes an outer pad and an inner lining pad respectively arranged on both sides of the supporting uprights, and the other sides of the outer pad and the inner lining pad are provided with nuts matching the screw rod.

[0015] Preferably in any of the above schemes, a safety plate is provided under each of the outer pads to prevent it from sliding down, and the safety plate includes a limiting plate and fixing buckles welded to both sides of the limiting plate, and the fixing buckles match the limiting buckles and are buckled on the corresponding limiting buckles.

[0016] As described above, the bridge steel strand fast unloading device of the utility model has the following beneficial effects:

[0017] 1. The utility model has strong practicability and simple structure. The main structure is welded with steel sections, and the remaining structures are connected with bolts, which is convenient for installation, disassembly and storage.

[0018] 2. The utility model adopts screw rods and double pads for longitudinal connection, and the overall stability of the structure is strong.

[0019] 3. The utility model supports the vertical pole wing plate symmetrically welded with limit buckles, and uses the insurance plate fixing buckle to fix it, so as to prevent the screw plate from sliding down, play an insurance role, and have high safety.

[0020] 4. The utility model has its own rainproof component, which is inserted and fixed to the supporting poles for easy disassembly. The retractable rainproof tarpaulin installed on the component can prevent the rapid unloading device and the steel strand from being eroded by rain, thereby improving the utilization rate of materials.

[0021] 5. The device of the utility model can be walked, so that the steel strand fast unloading device can be moved on the bridge deck and can be moved outside the rotation radius of the lifting equipment, thereby reducing labor intensity and improving construction efficiency.

[0022] 6. The utility model is equipped with a distance meter, which can be used to directly measure the cutting length, greatly improving construction efficiency and reducing time waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a front view of the present invention.

[0024] Figure 2 Shown is a side view of the utility model.

[0025] Figure 3 Shown is a top view of the present invention.

[0026] Figure 4 Shown are three views of the support pole in the utility model.

[0027] Figure 5 Shown are three views of the crossbar in the utility model.

[0028] Figure 6 Shown are three views of the auxiliary upright pole in the utility model.

[0029] Figure 7 Shown is a front view of the connecting component in the present invention.

[0030] Figure 8 Shown are three views of the insurance plate in the present invention.

[0031] Fig. 9 Shown are three views of the lifting ear in the utility model.

[0032] Fig.10 Shown is a front view of the rainproof component of the present invention.

[0033] Fig.11 Shown is a side view of the rainproof component of the present invention.

[0034] Fig.12 Shown is a top view of the rainproof component of the present invention.

[0035] Fig.13 Shown are three views of the tarpaulin and the tarpaulin suspension rod in the present invention.

[0036] Fig.14 Shown are three views of the buckle in the utility model.

[0037] Fig.15 Shown are three views of the rangefinder in the utility model.

[0038] Fig.16 The three views of the fixed rod of the rangefinder in the utility model are shown

[0039] Fig.17 Shown are three views of the fixing rod of the cutting machine in the utility model.

[0040] Fig.18 Shown are three views of the cutting machine fixing plate in the utility model.

[0041] Fig.19 Shown are three views of the positioning tube in the utility model.

[0042] Fig. 20 Shown are three views of the travel wheel in the utility model.

[0043] Component number description

[0044] 1-supporting pole, 1.1-supporting channel steel, 1.2-limiting buckle, 1.3-end sealing plate, 2-cross bar, 3-secondary pole, 4-connecting assembly, 4.1-screw, 4.2-nut, 4.3-outer pad, 4.4-inner pad, 5-safety plate, 5.1-limiting plate, 5.2-fixing buckle, 6-lifting ear, 7-rainproof assembly, 7.1-plastic plate, 7.2-upper pole, 7.3-positive cross bar, 7.4-tarpaulin hanging rod, 7.5-tarpaulin, 7.6-lower pole, 7.7-buckle, 7.8-side cross bar, 8-distance meter, 8. 1- rocker arm, 8.2- stand plate, 8.3- tape measure, 8.4- bearing, 8.5- bottom plate, 9- distance meter fixing rod, 9.1- lifting rod, 9.2- first bolt hole, 10- cutting machine fixing rod, 10.1- fixing rod, 10.2- second bolt hole, 11- cutting machine fixing plate, 11.1- connecting steel plate, 11.2- third bolt hole, 12- positioning tube, 13- walking wheel, 13.1- connecting rod, 13.2- steering device, 13.3- fixing pin shaft, 13.4- wheel, 14- cutting machine, 15- stranded wire. DETAILED DESCRIPTION

[0045] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0046] See also Figures 1 to 20 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0047] See also Figure 1-20 The utility model provides a fast unloading device for bridge steel strands, including a movable steel frame, a rainproof component 7 is detachably connected to the top of the steel frame, a steel strand 15 is fixed in the steel frame through a connecting component 4, a cutting machine 14 is also provided on the steel frame, the cutting machine 14 is arranged at the outlet end of the steel strand 15, a distance meter 8 is arranged below the outlet end of the steel strand 15, the distance meter 8 includes two symmetrically arranged frame plates 8.2, and a circularly rotatable tape measure 8.3 is arranged between the two frame plates 8.2.

[0048] When this embodiment is used, when it is necessary to cut the steel strand 15, the steel strand 15 is hoisted into the steel frame body by a tower crane and fastened by the connecting assembly 4. Usually, for a large-span bridge, the longitudinal steel strand 15 is cut longer in the later stage, so the cutting device equipped with the steel strand 15 is pushed to a position close to the end of the bridge, which can greatly improve the cutting accuracy, and then the steel strand 15 cutting operation is carried out; when it is necessary to cut the vertical steel bundles of the bridge web and the horizontal steel bundles of the top plate, the cutting device is pushed to the specified position and fixed, and the required cutting length is measured by the distance meter 8, and marked, the steel strand 15 is led out, and the end is pulled to the marked position, and the steel strand 15 is cut off by the cutting machine 14, and the cutting operation is repeated in this way to complete the cutting. After the cutting is completed, the rainproof assembly 7 is connected to the top of the steel frame to protect the cutting device from rain. Therefore, this embodiment can directly use the distance meter 8 to measure the cutting length, greatly improve the construction efficiency, and reduce the waste of time. At the same time, the rainproof component 7 is detachably connected to the top of the steel frame, so that the rainproof component 7 can be removed when the unloading device is in use, thereby reducing the weight of the device and facilitating the movement of the device. After the unloading device is used, the rainproof component 7 can be installed to protect the unloading device.

[0049] In this embodiment, a walking wheel 13 is connected to the bottom of the steel frame, and the walking wheel 13 is used to realize the free movement of the device on the bridge deck. The walking wheel 13 is composed of a connecting rod 13.1, a steering device 13.2, a fixed pin shaft 13.3 and a wheel 13.4. The hollow part at the top of the steering device 13.2 is used to place the connecting rod 13.1, and the steering device 13.2 and the connecting rod 13.1 can rotate freely. The lower end of the steering device 13.2 is grooved to leave space for the wheel 13.4, and the edges and corners are arc-shaped. The fixed pin shaft 13.3 is obtained by piercing the two ends of the round steel. The wheel 13.4 is obtained by grinding the alloy steel into a wheel hub and then putting a rubber tire on the outside. The top of the connecting rod 13.1 of the walking wheel 13 is welded to the center of the end sealing plate 1.3 at the bottom of the support upright 1.

[0050] The connecting rod 13.1 is made of square steel of 20×20×40 mm.

[0051] The steering device 13.2 is made of square steel of 40×40×80 mm.

[0052] The pin is a round steel with a diameter of 10mm and a length of 60mm.

[0053] Wheel 13.4 is a high-strength alloy steel wheel with a diameter of 100mm and a width of 26mm and is covered with rubber.

[0054] As a further description of the above embodiment, the steel frame includes four rectangular support poles 1, each of which is welded with a lifting lug 6 on the inner side of the web at the top of each support pole 1, three cross bars 2 are arranged between the left and right support poles 1, and two auxiliary poles 3 are arranged between two adjacent cross bars 2. The support pole 1 includes a support channel steel 1.1, and limit buckles 1.2 are welded on both sides of the support channel steel 1.1. Two strip holes are cut at the upper and lower ends of the support channel steel 1.1, and an end sealing plate 1.3 is welded at the bottom of the support channel steel 1.1.

[0055] When used in this embodiment, the support channel steel 1.1 adopts a 140×60×8mm channel steel with a length of 1.5m. A 450mm strip hole is opened downward at the center of the web 200mm away from the top, and a 200mm strip hole is opened upward at the 200mm away from the bottom. The wing plate of the support channel steel 1.1 is symmetrically provided with a limit buckle 1.2 with a diameter of 20mm and a length of 40mm, and the limit buckle 1.2 is set outside the strip hole, and the limit buckle 1.2 is welded to the support channel steel 1.1. A 140×60×20mm end sealing plate 1.3 is welded at the bottom of the support channel steel 1.1. The setting of the end sealing plate 1.3 is convenient for connection with the connecting rod 13.1 of the walking wheel 13, so that the device can be moved while ensuring the stability of the device.

[0056] The crossbar 2 is used to connect two supporting poles 1 horizontally, and the two ends of the crossbar 2 are welded to the supporting poles 1. The spacing between two adjacent crossbars 2 is 500mm. The crossbar 2 is made of 80×43×5mm channel steel, with a length of 1000mm, and a total of six crossbars. The two middle crossbars are cut with holes with a diameter of 24mm at a position 415mm from the end.

[0057] The auxiliary uprights 3 are used to connect two adjacent crossbars 2. Both ends of the auxiliary uprights 3 are welded to the crossbars 2, and there are eight of them in total. The distance between the auxiliary uprights 3 and the supporting uprights 1 is 350mm. The auxiliary uprights 3 are made of 80×43×5mm channel steel and are 450mm long.

[0058] In this embodiment, the lifting lug 6 is formed by bending round steel and welded to the inner web side of the channel steel of the support upright 1, and is used for the detachable installation of the rainproof component 7. Specifically, the lifting lug 6 is made of a plain round steel bar with a diameter of 16 mm and a length of 500 mm.

[0059] As a further description of the above embodiment, the rainproof assembly 7 includes two triangular plastic plates 7.1, two sets of parallel horizontal bars 7.3 are arranged between the two plastic plates 7.1, the same set of horizontal bars 7.3 are connected by side horizontal bars 7.8, at least two upper vertical bars 7.2 are arranged between the two sets of horizontal bars 7.3, four lower vertical bars 7.6 are fixedly connected to the bottom of the lower horizontal bar 7.3, and buckles 7.7 are welded to the bottom of the lower vertical bars 7.6, which are detachably inserted into the hanging ears 6. The rainproof assembly 7 also includes a storable tarpaulin 7.5, which is wound on a tarpaulin hanging rod 7.4, and the tarpaulin hanging rod 7.4 is welded and fixed to the vertical bar 7.3 and the side horizontal bar 7.8.

[0060] When this embodiment is used, the front crossbar 7.3, the side crossbar 7.8, the upper vertical bar 7.2 and the lower vertical bar 7.6 are welded to form the framework of the rainproof assembly 7, and the plastic plate 7.1 is fixedly connected to the front crossbar 7.3 to form a triangular structure to shield the unloading device and the tarpaulin 7.5. After unloading, the tarpaulin 7.5 is lowered from the tarpaulin hanging rod 7.4, and the lower end of the tarpaulin 7.5 is fixed to the bottom of the unloading device to protect the unloading device and the steel strand 15. In this embodiment, the rainproof assembly 7 is fixed to the supporting vertical bar 1 by insertion, which is easy to disassemble. The retractable rainproof and flame-retardant tarpaulin 7.5 is installed thereon to prevent the rapid unloading device and the steel strand 15 from being eroded by rainwater, thereby improving the material utilization rate.

[0061] In this embodiment, the buckle 7.7 is made of rolled steel plate, and the two ends of the steel plate are bent toward the middle of the steel plate to form a buckle 7.7 that matches the ear 6. It can be fixed by buckling it into the ear 6, thereby realizing a detachable connection between the rainproof component 7 and the supporting pole 1, which is convenient for installation and disassembly and improves work efficiency.

[0062] In this embodiment, the size of the plastic plate 7.1 is 1560×850×2 mm.

[0063] The upper upright 7.2 is made of 20×20×5mm square steel and has a length of 130mm.

[0064] The crossbar 7.3 is made of 20×20mm×5mm square steel, and the lengths of the upper and lower crossbars 7.3 are 490mm and 1500mm respectively.

[0065] The lower upright 7.6 is made of 20×20×5mm square steel and has a length of 320mm.

[0066] Buckle 7.7 is made of rolled steel plate of 220×80×8mm.

[0067] The side cross bar 7.8 is made of 20×20mm×5mm square steel and has a length of 1500mm.

[0068] Tarpaulin suspension rod 7.4 is made of round steel with a diameter of 10mm and a length of 1740mm, which is bent to obtain a projection length of 1500mm.

[0069] The tarpaulin 7.5 is made of rainproof and flame-retardant material, with a width of 1300mm and a length of 2500mm.

[0070] As a further description of the above embodiment, holes are symmetrically provided on the two middle cross bars 2 , and a positioning tube 12 for leading out the steel strands 15 is fixedly connected to the hole of one of the cross bars 2 .

[0071] When this embodiment is used, the positioning tube 12 and the hole are arranged to facilitate the drawing out of the steel strand 15, and one end of the positioning tube 12 is welded to the cross bar 2. The inner diameter of the positioning tube 12 is larger than the diameter of the hole, ensuring that the positioning tube 12 can be stably welded to the cross bar 2. The diameter of the hole is larger than the diameter of the steel strand 15, ensuring that the steel strand 15 can be smoothly pulled out.

[0072] In this embodiment, the positioning tube 12 is Steel pipe.

[0073] As a further description of the above embodiment, a cutting machine fixing rod 10 is welded to the lower auxiliary rod 3 , a cutting machine fixing plate 11 is detachably connected to the cutting machine fixing rod 10 , and a cutting machine 14 is fixedly arranged on the cutting machine fixing plate 11 .

[0074] When the present embodiment is used, the cutting machine fixing rod 10 is located below the suspended end of the positioning tube 12, so that the installed cutting machine 14 can cut the pulled-out steel strand 15.

[0075] In this embodiment, the cutting machine fixing rod 10 includes a fixing rod 10.1 and a second bolt hole 10.2 formed on the fixing rod. One end of the cutting machine fixing rod 10 is welded to the auxiliary vertical rod 3 for fixing the cutting machine 14. The fixing rod 10.1 is made of 80×43×5mm channel steel, with a length of 470mm, and a second bolt hole 10.2 with a diameter of 10mm is formed at the center of the wing plate at 95mm and 315mm from the two end portions.

[0076] The cutting machine fixing plate 11 is used to connect the cutting machine 14 with the cutting machine fixing rod 10. The cutting machine fixing plate 11 is composed of a connecting steel plate 11.1 and a third bolt hole 11.2 provided on the connecting steel plate 11.1. The connecting steel plate 11.1 is a 520×320×20mm steel plate, and four third bolt holes 11.2 with a diameter of 10mm are provided at 50mm from the long side and 63mm from the short side. The second bolt hole 10.2 and the third bolt hole 11.2 are provided to facilitate the detachable connection between the cutting machine fixing rod 10, the cutting machine fixing plate 11 and the cutting machine 14.

[0077] As a further description of the above embodiment, the rangefinder 8 is fixed to the bottom cross bar 2 through the rangefinder fixing rod 9, and the rangefinder fixing rod 9 is detachably connected to the bottom plate 8.5. Two stand plates 8.2 are fixedly connected to the bottom plate 8.5. Holes are opened at the centers of the two stand plates 8.2, and bearings 8.4 are welded and fixed in the holes. The measuring tape 8.3 is driven to rotate by the rocker 8.1. One end of the rocker 8.1 passes through the two bearings 8.4 and the middle of the measuring tape 8.3 and is welded to the inner wall of the bearing 8.4.

[0078] When the present embodiment is used, the distance measuring device 8 is composed of a rocker 8.1, a stand plate 8.2, a tape measure 8.3, a bearing 8.4 and a bottom plate 8.5. According to the required cutting length of the drawing, the tape measure 8.3 is pulled out to the required length and marked with a ruler pen or other tools, and then the rocker 8.1 is used to retract the tape measure 8.3 into the distance measuring device to carry out the steel strand cutting construction.

[0079] In this embodiment, the rocker 8.1 is made of round steel with a diameter of 10 mm and a length of 200 mm, and after bending, the projected length is 170 mm.

[0080] The stand plate 8.2 is made of 200×50×10mm steel plate, and a hole with a diameter of 40mm is opened at its center.

[0081] The theoretical measuring length of tape measure 8.3 is 50m.

[0082] The outer diameter of bearing 8.4 is 40mm and the inner diameter is 10mm.

[0083] The bottom plate 8.5 is made of 200×70×10mm steel plate, and holes with a diameter of 10mm are opened at 30mm from the short side and 35mm from the long side, and are arranged symmetrically.

[0084] In this embodiment, the rangefinder fixing rod 9 is composed of a lifting rod 9.1 and a first bolt hole 9.2 opened on the lifting rod 9.1.

[0085] The lifting rod 9.1 is made of 80×43×5mm channel steel, with a length of 200mm, and a first bolt hole 9.2 with a diameter of 10mm is opened at the center of the wing plate 100mm away from the end. The arrangement of the first bolt hole 9.2 and the holes on the bottom plate 8.5 facilitates the detachable connection between the bottom plate 8.5 and the rangefinder fixing rod 9.

[0086] As a further description of the above embodiment, the connecting assembly 4 includes a screw rod 4.1, which passes through the strip holes of the two supporting uprights 1 in sequence. Two groups of pads are sleeved on the screw rod 4.1, and each group of pads includes an outer pad 4.3 and an inner lining plate 4.4 respectively arranged on both sides of the supporting uprights 1. The other sides of the outer pad 4.3 and the inner lining plate 4.4 are provided with a nut 4.2 matching the screw rod 4.1.

[0087] When using this embodiment, before hoisting the steel strand 15 into the device, first remove the two upper connection components 4, and adjust the inner lining plate 4.1 and the inner nut 4.2, the outer lining plate 4.3 and the outer nut 4.2 in the bottom connection component 4 according to the actual width of the steel strand drum so that the inner width of the screw rod 4.1 is exactly the same as the width of the steel strand drum; after the steel strand 15 is hoisted into the device, install the upper connection component 4, adjust the inner lining plates 4.4 and the inner nut 4.2 on both sides of the screw rod 4.1 to the same position as its width according to the width of the steel strand drum, install the outer lining plate 4.4 and the outer nut 4.2, and tighten them with a pipe clamp. Then pass the outlet end of the steel strand 15 through the positioning tube 12. In this embodiment, the screw rod 4.1 plus the double pads are used for longitudinal connection, and the overall stability of the structure is strong.

[0088] In this embodiment, the screw rod 4.1 is made of finely rolled threaded steel with a diameter of 32 mm and a length of 1500 mm, and the nut 4.2 matches the screw rod 4.1.

[0089] The outer pad 4.3 is made of 140×140×20mm steel plate.

[0090] The inner lining plate is made of 120×120×20mm steel plate.

[0091] As a further description of the above embodiment, a safety plate 5 is provided under each outer pad 4.3 to prevent it from sliding down. The safety plate 5 includes a limiting plate 5.1 and fixing buckles 5.2 welded on both sides of the limiting plate 5.1. The fixing buckles 5.2 match the limiting buckles 1.2 and are buckled on the corresponding limiting buckles 1.2.

[0092] When this embodiment is used, in order to prevent the screw 4.1 and the outer pad 4.3 from sliding down, to play a safety role for the connecting component 4 and to improve the safety of the device, a safety plate 5 is arranged under the outer pad 4.3, and the limit buckles 1.2 on both sides of the safety plate 5 are buckled on the limit buckles 1.2 on the supporting pole 1.

[0093] In this embodiment, the limiting plate 5.1 is made of a 190×170×20 mm steel plate, on which a fixing buckle 5.2 with a diameter of 20 mm and a length of 40 mm is welded.

[0094] In summary, the bridge steel strand fast unloading device is actually used as follows:

[0095] 1) Factory installed part.

[0096] In the factory, the limit buckle 1.2 is welded to the supporting channel steel 1.1 at the corresponding position, and a strip hole is cut at the corresponding position of the supporting channel steel 1.1, and the end sealing plate 1.3 is welded to the bottom end of the supporting channel steel 1.1, and the lifting lug 6 is welded to the inner side of the web of the supporting upright 1. The assembly of the supporting upright 1 is completed.

[0097] Cut the crossbar 2 and the auxiliary vertical bar 3 according to the above dimensions. Three crossbars 2 are welded to the support vertical bar 1 every 500mm. Four auxiliary vertical bars 3 are welded to the two wing plates of the crossbar 2 at a distance of 1350mm from the support vertical bar. Weld the fixing buckles 5.2 on both sides of the limit plate 5.1, weld the positioning tube 12 to the corresponding position of the crossbar 2, complete the main assembly, and make two integral structures in this way.

[0098] In the factory, the upper vertical pole 7.2, the front cross bar 7.3, the lower vertical pole 7.6, and the side cross bar 7.8 are cut and welded according to the above-mentioned size, the plastic plate 7.1 is cut out and fixed to the welded frame, the buckle 7.7 is rolled into shape, and its back is welded to the lower vertical pole 7.6, and the tarpaulin hanging rod 7.4 is bent according to the size and welded to the front cross bar 7.3 and the side cross bar 7.8, one end of the tarpaulin 7.5 is fixed thereon, and the remaining tarpaulin 7.5 is rolled thereon and fixed with a rope to complete the assembly of the rainproof device.

[0099] After cutting according to the above dimensions, weld the outer ring of the bearing 8.4 to the reserved hole of the frame plate 8.2, then weld the rocker 8.1 to the inner ring of the bearing 8.4, weld the frame plate 8.2 to the base plate 8.5, open bolt holes at the corresponding positions of the base plate 8.5, and finally fix the tape measure 8.3 to the rocker 8.1 to complete the assembly of the rangefinder 8.

[0100] After the rangefinder fixing rod 9 and the cutting machine fixing rod 10 are cut to size, bolt holes are opened at corresponding positions, and the rangefinder fixing rod 9 is welded at the center position of the crossbar 2, and the cutting machine fixing rod 10 is welded at the specified position of the auxiliary vertical rod 3.

[0101] The hollowed-out portion at the top of the steering device 13.2 is used to place the connecting rod 13.1, and the steering device 13.2 and the connecting rod 13.1 can rotate freely. The lower end of the steering device 13.2 is slotted to leave space for the wheel 13.4, and the edges and corners are arc-shaped; the fixed pin 13.3 is obtained by piercing the ends of the round steel; the wheel 13.4 is obtained by grinding the alloy steel into a wheel hub and then putting a rubber tire on the outside. The top of the connecting rod 13.1 of the walking wheel 13 is welded to the center of the end sealing plate 1.3 at the bottom of the supporting pole 1.

[0102] 2) On-site installation

[0103] After the materials are transported to the site, the two main structures of the unloading device are connected with a connecting device, and the nut 4.2 is adjusted according to the size of the steel strand 15 to fix the steel strand 15. The lower connecting device is installed first, and then the upper connecting device is installed; then the insurance plate 5 is installed at the corresponding position of the supporting upright 1, and the outer pad 4.3 of the connecting device is pressed against it; the rangefinder 8 is installed, and its pad is first welded to the fixed channel steel of the rangefinder 8, and bolt holes are opened on it, and the rangefinder 8 is placed on its pad, and it is connected and stabilized by bolts; the cutting machine fixing plate 11 is placed on the cutting machine fixing rod 10, and the bolt holes are aligned, and then the cutting machine 14 is placed on the cutting machine fixing plate 11, and the bolt holes are aligned therewith, and the cutting machine 14, the cutting machine fixing plate 11, and the cutting machine fixing rod 10 are connected and fixed by bolts; finally, the rainproof device is inserted into the lifting ear 6 through its buckle 7.7 to complete the fixation.

[0104] 3) Usage

[0105] When it is necessary to cut the steel strand 15, the steel strand 15 is hoisted into the cutting device by the tower crane in the above-mentioned manner and fastened by the connecting device. Usually, for a large-span bridge, the longitudinal steel strand 15 is cut longer in the later stage. Therefore, the cutting device with the steel strand 15 is pushed to a position close to the end of the bridge, which can greatly improve the cutting accuracy, and then the cutting operation of the steel strand 15 is carried out. When it is necessary to cut the vertical steel strands of the bridge web and the horizontal steel strands of the top plate, the cutting device is pushed to the designated position and the wheels 13 are moved. .4 Fix, measure the required cutting length by the distance meter 8, and make a mark, lead the steel strand 15 out from the positioning tube 12, pull the end to the marked position, use the cutting machine 14 to cut the steel strand 15, and complete the cutting by such reciprocating operation. After the cutting is completed, fix the rainproof device on the lifting ear 6, and lower the surrounding tarpaulin 7.5 from the tarpaulin suspension rod 7.4, fix the lower end of the tarpaulin 7.5 to the bottom end of the cutting device, and when the steel strand 15 is to be used, the tarpaulin 7.5 can be put away.

[0106] 4) Quality requirements

[0107] During the welding process, ensure that all rods are horizontal and vertical, and that the welding parts are fully welded. After welding, knock off the welding slag and conduct weld quality inspection to ensure that the weld quality meets the requirements. During the transportation and storage of each component, do not hit it hard or press it heavily to prevent the connection parts of each component from deforming, which will make the later installation difficult. After the above steps are completed, spray the device with anti-rust material to improve its durability. During installation, the bolt connections at each bolt connection should be tightened.

[0108] In summary, the device in the utility model is movable and can directly use a distance meter to measure the length of the material, thereby improving construction efficiency and reducing time waste. At the same time, the rainproof component can effectively prevent the steel strand from being eroded by rainwater and improve material utilization; the entire structure is simple, easy to install and disassemble, and convenient to store. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0109] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A bridge steel strand fast unloading device, characterized by: The invention comprises a movable steel frame, the top of which is detachably connected to a rainproof component (7), a steel strand (15) is fixed in the steel frame via a connecting component (4), a cutting machine (14) is also provided on the steel frame, the cutting machine (14) is arranged at the outlet end of the steel strand (15), a distance meter (8) is provided below the outlet end of the steel strand (15), the distance meter (8) comprises two symmetrically arranged stand plates (8.2), a circularly rotatable tape measure (8.3) is provided between the two stand plates (8.2).

2. The bridge steel strand fast unloading device according to claim 1 is characterized by: The steel frame comprises four rectangular supporting uprights (1), each supporting upright (1) having a lifting lug (6) welded to the inner side of the web at the top, three cross bars (2) arranged between the left and right supporting uprights (1), and two auxiliary uprights (3) arranged between two adjacent cross bars (2).

3. The bridge steel strand fast unloading device according to claim 2 is characterized by: The support upright (1) comprises a support channel steel (1.1), limit buckles (1.2) are welded on both sides of the support channel steel (1.1), two strip holes are cut at the upper and lower ends of the support channel steel (1.1), and an end sealing plate (1.3) is welded at the bottom of the support channel steel (1.1).

4. The bridge steel strand fast unloading device according to claim 2 is characterized by: The rainproof component (7) comprises two triangularly arranged plastic plates (7.1), two groups of parallelly arranged front cross bars (7.3) are arranged between the two plastic plates (7.1), the front cross bars (7.3) in the same group are connected by side cross bars (7.8), at least two upper vertical bars (7.2) are arranged between the two groups of the front cross bars (7.3), four lower vertical bars (7.6) are fixedly connected to the bottom of the lower front cross bar (7.3), and buckles (7.7) are welded to the bottom of the lower vertical bars (7.6), and the buckles (7.7) are detachably inserted into the hanging ears (6).

5. The bridge steel strand fast unloading device according to claim 4 is characterized in that: The rainproof assembly (7) also includes a retractable tarpaulin (7.5), wherein the tarpaulin (7.5) is wound around a tarpaulin suspension rod (7.4), and the tarpaulin suspension rod (7.4) is welded and fixed to the front crossbar (7.3) and the side crossbar (7.8).

6. The bridge steel strand fast unloading device according to claim 2 is characterized by: A cutting machine fixing rod (10) is welded to the auxiliary upright rod (3) at the bottom, a cutting machine fixing plate (11) is detachably connected to the cutting machine fixing rod (10), and the cutting machine (14) is fixedly arranged on the cutting machine fixing plate (11).

7. The bridge steel strand fast unloading device according to claim 2 is characterized by: The two middle cross bars (2) are symmetrically provided with holes, and a positioning tube (12) for leading out the steel strand (15) is fixedly connected to the hole of one of the cross bars (2).

8. The bridge steel strand fast unloading device according to claim 2 is characterized by: The distance meter (8) is fixed to the bottom cross bar (2) via a distance meter fixing rod (9); a bottom plate (8.5) is detachably connected to the distance meter fixing rod (9); two erection plates (8.2) are fixedly connected to the bottom plate (8.5); holes are provided at the centers of the two erection plates (8.2); bearings (8.4) are welded and fixed in the holes; the measuring tape (8.3) is driven to rotate via a rocker (8.1); one end of the rocker (8.1) passes through two bearings (8.4) and the middle of the measuring tape (8.3) and is welded to the inner wall of the bearing (8.4).

9. The bridge steel strand fast unloading device according to claim 3 is characterized by: The connection assembly (4) comprises a screw rod (4.1), the screw rod (4.1) sequentially passing through the strip holes of the two supporting uprights (1), two groups of pads are sleeved on the screw rod (4.1), each group of pads comprises an outer pad (4.3) and an inner pad (4.4) respectively located on both sides of the supporting uprights (1), and the other sides of the outer pad (4.3) and the inner pad (4.4) are each provided with a nut (4.2) matching the screw rod (4.1).

10. The bridge steel strand fast unloading device according to claim 9, characterized in that: A safety plate (5) is provided below each outer pad (4.3) to prevent it from sliding down, and the safety plate (5) comprises a limit plate (5.1) and fixing buckles (5.2) welded to both sides of the limit plate (5.1), and the fixing buckles (5.2) match the limit buckles (1.2) and are buckled on the corresponding limit buckles (1.2).

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