A tire gantry crane device

Abstract

The present invention relates to the technical field of hoisting equipment, and specifically discloses a tire gantry crane device, which includes a gantry and a hoisting mechanism. A clamping device is arranged on the hoisting mechanism. The clamping device includes a mounting frame, a plurality of clamping claws, and a tightening mechanism arranged on the hoisting mechanism. The tightening mechanism includes a lifting belt arranged on one clamping claw, a tightening belt arranged on the other clamping claw, a tightening ring arranged on the tightening belt, and an adjusting component arranged on the hoisting mechanism and used for lifting the lifting belt. The lifting belt and the tightening belt are symmetrically arranged with respect to the axis of the steel bar bundle. The lifting belt passes through the tightening ring, and the steel bar bundle is located between the lifting belt and the tightening belt. When the lifting belt and the tightening belt are connected, the hoisting mechanism lifts the steel bar bundle, and the adjusting component drives one end of the lifting belt to rise, and the lifting belt and the tightening belt clamp the steel bar bundle tightly; the tire gantry crane device of the present invention has the effect of better stability of the steel bar bundle during the hoisting process.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, and particularly relates to a tire gantry crane device. Background Art

[0002] A gantry crane, also known as a gantry crane, is mainly used for outdoor loading and unloading operations in ports. Its metal structure is like a gantry frame. Two legs are installed under the load-bearing main beam, and it can directly run on the ground track. The two ends of the main beam can have outrigger cantilever beams. The gantry crane has the characteristics of high site utilization rate, large operation range, wide adaptability, strong versatility, etc.

[0003] Gantry cranes can be divided into gantry cranes and cantilever gantry cranes according to the frame structure form. Gantry cranes can be further divided into full gantry cranes and semi-gantry cranes, and cantilever gantry cranes can be divided into double-cantilever gantry cranes and single-cantilever gantry cranes; according to the main beam form, they can be divided into single-main-beam gantry cranes and double-main-beam gantry cranes; according to the main beam structure, they can be divided into truss beam cranes, box beam cranes, and honeycomb beam cranes; according to the usage form classification, they can be divided into ordinary gantry cranes, shipbuilding gantry cranes, and container gantry cranes.

[0004] The patent document with the publication number CN218174379U discloses a steel bar hoisting and clamping device for civil engineering construction, including a top plate and two parallel fixed blocks. At both ends of the top of the top plate, first lifting rings are symmetrically and fixedly connected. On the two first lifting rings, steel wire ropes are symmetrically and fixedly connected. The ends of the two steel wire ropes away from the first lifting rings are commonly fixedly connected to a second lifting ring. A chute is opened in the middle of the lower surface of the top plate. A bidirectional screw is rotatably connected in the inner cavity of the chute. One end of the bidirectional screw is fixedly connected to a handwheel. At the front and rear ends of the inner cavity of the chute, sliding blocks are symmetrically and slidably connected. On both sides of the upper end of the sliding block, limit blocks are symmetrically and fixedly connected; buffer grooves are symmetrically opened at the tops of the two fixed blocks. Buffer columns are movably connected in the inner cavities of the two buffer grooves. A buffer block is fixedly connected to the bottom of the buffer column. A buffer spring is sleeved on the outer side of the lower end of the buffer column; air cylinders are symmetrically and fixedly connected to the bottoms of the two fixed blocks. Bottom plates are symmetrically and fixedly connected to the bottoms of the two air cylinders. Third connecting seats are symmetrically and fixedly connected to both ends of the bottom of the bottom plate. Arc-shaped clamping claws are movably connected to the inner sides of the lower ends of the third connecting seats. A second connecting seat is fixedly connected to the outer side wall of the arc-shaped clamping claw. First connecting seats are symmetrically and fixedly connected to both sides of the fixed block. Movable connecting rods are movably connected to the inner sides of the first connecting seats.

[0005] In use, the second lifting ring is connected to the hoisting machinery. The two sets of arc-shaped clamping claws are placed at both ends outside the steel bars, such that the middle of the steel bars is located at the middle position between the two sets of arc-shaped clamping claws. Then, the two cylinders are started to contract. Under the action of the first connecting seat, the movable connecting rod, the second connecting seat, and the third connecting seat, the arc-shaped clamping claws clamp the steel bars, and then they can be lifted. The center of gravity of the steel bars is located between the two sets of arc-shaped clamping claws.

[0006] In the above technology, when hoisting bundled steel bars, since there are usually gaps between the steel bars and the binding straps when the steel bars are bundled, when the clamping claws clamp steel bar bundles of different quantities and different sizes, the bottom of the steel bar bundle supports on the clamping claws, and it is difficult for the binding straps to tightly fasten the top steel bars. The top steel bars are prone to sliding or shaking, resulting in poor stability of the steel bar bundle during hoisting. Summary of the Invention

[0007] The present invention provides a rubber-tired gantry crane device, aiming to solve the technical problem in the prior art that when hoisting bundled steel bars, since there are usually gaps between the steel bars and the binding straps when the steel bars are bundled, when the clamping claws clamp steel bar bundles of different quantities and different sizes, the bottom of the steel bar bundle supports on the clamping claws, and it is difficult for the binding straps to tightly fasten the top steel bars. The top steel bars are prone to sliding or shaking, resulting in poor stability of the steel bar bundle during hoisting.

[0008] A rubber-tired gantry crane device of the present invention includes a gantry and a hoisting mechanism provided on the gantry. A clamping device is provided on the hoisting mechanism. The clamping device includes a mounting rack, a plurality of clamping claws provided on the mounting rack and used for clamping the steel bar bundle, and a tightening mechanism provided on the hoisting mechanism. The tightening mechanism includes a lifting belt provided on one clamping claw, a tightening belt provided on the other clamping claw, a tightening ring provided on the tightening belt, and an adjusting component provided on the hoisting mechanism and used for lifting the lifting belt. The lifting belt and the tightening belt are symmetrically arranged with respect to the axis of the steel bar bundle. The lifting belt passes through the tightening ring. The steel bar bundle is located between the lifting belt and the tightening belt. When the lifting belt and the tightening belt are connected, the hoisting mechanism lifts the steel bar bundle, and the adjusting component drives one end of the lifting belt to rise, and the lifting belt and the tightening belt tighten the steel bar bundle.

[0009] Beneficial effect: through the setting of the tightening mechanism, after the steel bar bundle is placed on the clamping claws, the two clamping claws clamp the steel bar bundle, and then when the steel bar bundle is hoisted, the steel bar bundle is located between the lifting belt and the tightening belt. Since the lifting belt and the tightening belt are symmetrically arranged with respect to the axis of the steel bar bundle, and one end of the lifting belt is inserted into the tightening ring, when the steel bar bundle is lifted by the lifting mechanism, the adjusting component will drive one end of the lifting belt to rise, and one end of the lifting belt will rise in the tightening ring. During the rising process of the lifting belt, the tightening belt will be driven to move. The lifting belt and the tightening belt can gather together during movement and exert force on the periphery of the steel bar bundle to gradually tighten the steel bar bundle until the steel bar bundle is completely tightened and stopped, which can reduce the sliding or shaking of the steel bars at the top, thereby improving the stability of the steel bar bundle during the lifting process.

[0010] Preferably, the adjustment assembly includes a connecting plate connected to the lifting mechanism and a connecting belt for lifting the lifting belt, the connecting plate slides in the vertical direction to fit the mounting frame, one end of the connecting belt is connected to the connecting plate, and the other end is connected to the lifting belt.

[0011] Preferably, a connecting sleeve is provided on the mounting frame, the connecting plate is slidably fitted in the connecting sleeve along the vertical direction, and an elastic member is provided between the connecting plate and the connecting sleeve.

[0012] Beneficial effect: Through the setting of the connecting sleeve and the elastic part, the connecting sleeve and the connecting plate can make relative movement in the vertical direction, and compress or stretch the elastic part. When the lifting mechanism lifts the connecting plate, it can pull the lifting belt up to tighten the steel bar bundle.

[0013] Preferably, the lifting belt is provided with a receiving mechanism, and the tightening belt is provided with a clamping mechanism which is clamped, locked and unlocked with the receiving mechanism, and when the two clamping claws symmetrically arranged about the axis of the steel bar bundle abut against each other, the receiving mechanism is clamped and locked with the clamping mechanism.

[0014] Beneficial effect: Through the setting of the receiving mechanism and the clamping mechanism, when the two clamping claws move in the direction of approaching each other and abut against each other, when the steel bar bundle is clamped, the receiving mechanism and the clamping mechanism are clamped and locked to achieve the connection between the lifting belt and the tightening belt. When the two clamping claws move in the direction of moving away from each other, the receiving mechanism and the clamping mechanism are unlocked.

[0015] Preferably, the receiving mechanism includes a receiving block arranged at one end of the lifting belt and an unlocking block elastically connected to the clamping claw at the receiving block, a receiving groove is provided on the receiving block, the receiving block is slidably fitted with the clamping claw, and the unlocking block is slidably fitted with the clamping claw along the vertical direction.

[0016] Preferably, the clamping mechanism includes a connecting block disposed at one end of the tightening belt and a clamping block that is clamped, locked, and unlocked with the receiving groove. The clamping block is elastically connected to the connecting block, and the clamping block is slidably engaged with the connecting block in the vertical direction.

[0017] Preferably, a guiding inclined surface is provided at one end of the clamping block facing away from the tightening belt. When the guiding inclined surface abuts against the end surface of the receiving block facing away from the lifting belt, the receiving block presses the clamping block to rise, the connecting block continues to slide towards the receiving block, the clamping block is inserted into the receiving groove, and is clamped and locked with the receiving groove.

[0018] Beneficial effects: Through the setting of the guiding inclined surface, when the guiding inclined surface abuts against the end surface of the receiving block, the receiving block pushes the clamping block to rise. When the connecting block continues to slide and the clamping block moves into the receiving groove, the clamping block can slide into the receiving groove and be clamped and locked with the receiving groove, realizing the connection between the lifting belt and the tightening belt.

[0019] Preferably, an installation groove is formed in the clamping jaw, and an anti-slip wheel is rotatably engaged in the installation groove. The anti-slip wheel is slidably engaged with the clamping jaw in the radial direction of the clamping jaw.

[0020] Beneficial effects: Through the setting of the anti-slip wheel, when the lifting belt and the tightening belt tighten the steel bar bundle, the anti-slip wheel can be extruded, so that the anti-slip wheel slides along the radial direction of the clamping jaw towards the steel bar bundle and extrudes and positions the steel bar bundle, further improving the stability of the steel bar bundle.

[0021] Preferably, a plurality of sliding frames are provided on the mounting frame. The sliding frames are slidably engaged with the mounting frame along the length direction of the gantry. The clamping jaws are arranged on the sliding frames, and the connecting sleeves are connected to the sliding frames.

[0022] Beneficial effects: Through the setting of the sliding frames, by sliding and adjusting the sliding frames along the length direction of the gantry, the two groups of clamping jaws can be driven to slide and adjust. When the two groups of clamping jaws are adjusted towards each other or away from each other, it is convenient to clamp steel bar bundles of different lengths.

[0023] Preferably, a traveling mechanism for driving the sliding frame to travel in the mounting frame is provided on the sliding frame.

[0024] The beneficial effects of the present invention are:

[0025] 1. In the present invention, after the steel bar bundle is placed on the clamping claws through the setting of the tightening mechanism, the two clamping claws clamp the steel bar bundle, and then when the steel bar bundle is hoisted, the steel bar bundle is located between the lifting belt and the tightening belt. Since the lifting belt and the tightening belt are symmetrically arranged with respect to the axis of the steel bar bundle, and one end of the lifting belt is inserted into the tightening ring, when the steel bar bundle is lifted by the lifting mechanism, the adjusting component will drive one end of the lifting belt to rise, and one end of the lifting belt will rise in the tightening ring. During the rising process of the lifting belt, the tightening belt will be driven to move. The lifting belt and the tightening belt can gather together during movement and exert force on the periphery of the steel bar bundle to gradually tighten the steel bar bundle until the steel bar bundle is completely tightened and stopped, which can reduce the phenomenon that the steel bars at the top are prone to sliding or shaking, thereby improving the stability of the steel bar bundle during the lifting process.

[0026] 2. In the present invention, by setting the receiving mechanism and the clamping mechanism, when the two clamping claws move in the direction of approaching each other and abut against each other, when the steel bar bundle is clamped, the receiving mechanism and the clamping mechanism are clamped and locked to achieve the connection between the lifting belt and the tightening belt. When the two clamping claws move in the direction of moving away from each other, the receiving mechanism and the clamping mechanism are unlocked.

[0027] 3. In the present invention, by setting the anti-skid wheel, when the lifting belt and the tightening belt are tightening the steel bar bundle, the anti-skid wheel can be squeezed, so that the anti-skid wheel slides toward the steel bar bundle along the radial direction of the clamping claw, and squeezes the steel bar bundle to position, thereby further improving the stability of the steel bar bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a structural schematic diagram showing the connection relationship between the lifting mechanism and the clamping device of the present invention.

[0030] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0031] Figure 4 It is a structural schematic diagram showing the connection relationship between the connecting plate and the connecting sleeve of the present invention.

[0032] Figure 5 It is a partial cross-sectional view showing the connection relationship between the lifting belt and the clamping claw of the present invention.

[0033] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0034] Figure 7 It is a partial cross-sectional view showing the connection relationship between the receiving mechanism and the locking mechanism of the present invention.

[0035] Figure 8 yes Figure 7 A partial enlarged view of point C in the middle.

[0036] Reference numerals:

[0037] 1. Gantry; 2. Hoisting mechanism; 3. Clamping device; 31. Mounting frame; 32. Clamping claw; 33. Lifting belt; 34. Tightening belt; 35. Tightening ring; 36. Adjusting assembly; 361. Connecting plate; 362. Connecting belt; 4. Connecting sleeve; 5. Elastic member; 6. Supporting mechanism; 61. Supporting block; 611. Supporting groove; 62. Unlocking block; 7. Clamping mechanism; 71. Connecting block; 72. Clamping block; 721. Guide ramp; 8. Anti-skid wheel; 9. Sliding frame; 10. Walking mechanism. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0039] Reference Figures 1-8 A tire-type gantry crane device of the present invention comprises a gantry 1 and a hoisting mechanism 2 arranged on the gantry 1, a tire for moving the gantry 1 is installed at the bottom of the gantry 1, the hoisting mechanism 2 is slidably matched with the gantry 1 along the length direction of the gantry 1, the hoisting mechanism 2 adopts a hoisting winch, and a clamping device 3 is arranged on the hoisting mechanism 2, the clamping device 3 is used to hoist the steel bar bundle, the clamping device 3 comprises a mounting frame 31, a plurality of clamping claws 32 arranged on the mounting frame 31 and used to clamp the steel bar bundle, and a clamping mechanism arranged on the hoisting mechanism 2, the mounting frame 31 is connected to the hoisting mechanism 2, the clamping claws 32 are provided with two groups, each group includes two clamping claws 32 arranged oppositely, and a driver is provided at the mounting frame 31 for driving the two opposite clamping claws 32 to slide in a direction close to or away from each other. When the steel bar bundle needs to be hoisted, the hoisting mechanism 2 is first started to drive the clamping device 3 to descend. After the clamping device 3 descends to the steel bar bundle, the driver is started to drive the two clamping claws 32 to slide in a direction close to each other. The two clamping claws 32 clamp the steel bar bundle, and then the steel bar bundle is tightened by the tightening mechanism. Then the hoisting mechanism 2 is started to hoist the steel bar bundle.

[0040] Reference Figure 2 , Figure 4 and Figure 5, the tightening mechanism includes a lifting belt 33 arranged on one clamping jaw 32, a tightening belt 34 arranged on the other clamping jaw 32, a tightening ring 35 fixedly arranged on the tightening belt 34, and an adjusting component 36 arranged on the hoisting mechanism 2 and used for lifting the lifting belt 33. A receiving groove for installing the lifting belt 33 and the tightening belt 34 is formed on the clamping jaw 32. One end of the lifting belt 33 passes through the receiving groove, and one end of the tightening belt 34 passes through the receiving groove. The lifting belt 33 and the tightening belt 34 are symmetrically arranged with respect to the axis of the steel bar bundle, and the steel bar bundle is located between the lifting belt 33 and the tightening belt 34. The tightening ring 35 is arranged in a "return" shape structure, and the lifting belt 33 passes through the tightening ring 35. When the lifting belt 33 and the tightening belt 34 are connected, the hoisting mechanism 2 lifts the steel bar bundle, the adjusting component 36 drives one end of the lifting belt 33 to rise, and the lifting belt 33 and the tightening belt 34 tighten the steel bar bundle.

[0041] Refer to Figure 2 , Figure 4 and Figure 5 , the adjusting component 36 includes a connecting plate 361 connected to the hoisting mechanism 2 and a connecting belt 362 used for lifting the lifting belt 33. The connecting plate 361 is arranged in a T-shaped structure. One end of the connecting belt 362 is fixedly connected to the connecting plate 361, and the other end is fixedly connected to the lifting belt 33. A connecting sleeve 4 is arranged on the mounting frame 31. The connecting sleeve 4 is slidably fitted to the mounting frame 31 along the length direction of the mounting frame 31. The connecting plate 361 passes through the connecting sleeve 4. The connecting plate 361 is slidably fitted to the connecting sleeve 4 on the mounting frame 31 along the vertical direction, and the connecting plate 361 is slidably fitted to the mounting frame 31 along the length direction of the mounting frame 31 through the connecting sleeve 4. An elastic member 5 is arranged between the connecting plate 361 and the connecting sleeve 4. The elastic member 5 directly adopts a spring. One end of the elastic member 5 is fixedly connected to the connecting plate 361, and the other end is fixedly connected to the connecting sleeve 4.

[0042] Refer to Figures 5-7 , a receiving mechanism 6 is arranged on the lifting belt 33. The receiving mechanism 6 includes a receiving block 61 fixedly arranged at one end of the lifting belt 33 and an unlocking block 62 elastically connected to the clamping jaw 32 at the receiving block 61. The receiving block 61 is arranged in an L-shaped structure. A receiving groove 611 is formed on the receiving block 61. The receiving block 61 is slidably fitted to the clamping jaw 32. The unlocking block 62 is slidably fitted to the clamping jaw 32 along the vertical direction. A spring for elastically connecting the unlocking block 62 and the clamping jaw 32 can be arranged between the unlocking block 62 and the clamping jaw 32. In the initial state, the bottom end of the unlocking block 62 is located below the clamping jaw 32.

[0043] Refer to Figures 6-8, a clamping mechanism 7 for clamping and locking and unlocking with the receiving mechanism 6 is provided on the tightening band 34. When the two clamping claws 32 symmetrically arranged with respect to the axis of the steel bar bundle are in contact with each other, the receiving mechanism 6 and the clamping mechanism 7 are clamped and locked; the clamping mechanism 7 includes a connecting block 71 fixedly arranged at one end of the tightening band 34 and a clamping block 72 for clamping and locking and unlocking with the receiving groove 611. The connecting block 71 is arranged in an L-shaped structure. A groove adapted to the receiving groove 611 is formed on the connecting block 71. The clamping block 72 is elastically connected to the connecting block 71, and the clamping block 72 is slidably fitted vertically to the connecting block 71. A spring for elastically connecting the clamping block 72 to the connecting block 71 can be arranged between the clamping block 72 and the connecting block 71. In the initial state, the clamping block 72 is located inside the connecting block 71; a guiding inclined surface 721 is arranged at one end of the clamping block 72 away from the tightening band 34. When the guiding inclined surface 721 abuts against the end surface of the receiving block 61 away from the lifting band 33, the receiving block 61 presses the clamping block 72 to rise, and the connecting block 71 continues to slide towards the receiving block 61. The clamping block 72 is inserted into the receiving groove 611 and is clamped and locked with the receiving groove 611.

[0044] Refer to Figure 5 and Figure 6 , a plurality of mounting grooves are formed on the clamping claws 32. The plurality of mounting grooves are evenly arranged along the clamping claws 32. Anti-slip wheels 8 are rotatably fitted in the mounting grooves, and the anti-slip wheels 8 are slidably fitted radially along the clamping claws 32. The bottom of the anti-slip wheel 8 located at the lifting band 33 abuts against the lifting band 33, and the bottom of the anti-slip wheel 8 located at the tightening band 34 abuts against the tightening band 34. In the initial state, the bottom of the anti-slip wheel 8 is located below the bottom of the mounting groove, so that when the lifting band 33 and the tightening band 34 are brought closer to each other, the anti-slip wheel 8 can be pushed to squeeze the steel bar bundle.

[0045] Refer to Figure 4 and Figure 5 , two sliding frames 9 are arranged on the mounting frame 31. The sliding frames 9 are slidably fitted to the mounting frame 31 along the length direction of the gantry 1. The connecting sleeve 4 is fixedly connected to the sliding frames 9. One end of the clamping claws 32 is slidably fitted on the sliding frames 9, and the driver is fixedly installed on the sliding frames 9. The driver directly adopts a hydraulic cylinder. The cylinder body of the driver is fixedly connected to the sliding frames 9, and the piston rod of the driver is fixedly connected to one end of the clamping claws 32. Starting the driver can drive the two clamping claws 32 to slide in the direction of approaching or separating from each other; a traveling mechanism 10 is arranged on the sliding frames 9. The traveling mechanism 10 is used to drive the sliding frames 9 to travel in the mounting frame 31. When the position of the sliding frames 9 needs to be adjusted, the traveling mechanism 10 is started to drive the sliding frames 9 to slide on the mounting frame 31, which is convenient for clamping steel bar bundles of different lengths.

[0046] The implementation principle of a tire - type gantry crane device of the present invention is as follows: When it is necessary to hoist a bundle of steel bars, first start the traveling mechanism 10, which drives the two sliding frames 9 to slide on the mounting frame 31 in the direction of approaching or separating from each other, so as to adjust the distance between the two sliding frames 9;

[0047] After the adjustment is completed, then start the hoisting mechanism 2, which drives the clamping device 3 to descend. After the clamping device 3 descends to the position of the bundle of steel bars, start the driver, which drives the two clamping claws 32 to slide in the direction of approaching each other, and the two clamping claws 32 clamp the bundle of steel bars;

[0048] When the two clamping claws 32 slide in the direction of approaching each other, they drive the receiving block 61 and the connecting block 71 to approach each other. When the guiding inclined surface 721 of the clamping block 72 abuts against the end surface of the receiving block 61 facing away from the lifting belt 33, the receiving block 61 squeezes the clamping block 72 to rise and stretches the spring. Then the connecting block 71 continues to slide towards the receiving block 61. When the clamping block 72 slides to the receiving groove 611, the spring drives the clamping block 72 to insert into the receiving groove 611 and is clamped and locked with the receiving groove 611. At this time, the receiving block 61 and the connecting block 71 are connected together, and the lifting belt 33 and the tightening belt 34 are connected together;

[0049] Subsequently, start the hoisting mechanism 2. When the hoisting mechanism 2 rises, it can drive the connecting plate 361 to rise. The connecting plate 361 drives the connecting belt 362 to rise, and the connecting belt 362 drives the lifting belt 33 to rise. At this time, the lifting belt 33 passes through the receiving block 61 and the connecting block 71, and can drive the tightening belt 34 to move. The lifting belt 33 and the tightening belt 34 gather towards each other to tighten the bundle of steel bars;

[0050] When the lifting belt 33 and the tightening belt 34 gather towards the bundle of steel bars, they can squeeze the anti - slip wheel 8, and push the anti - slip wheel 8 to squeeze the bundle of steel bars, so as to further tighten the bundle of steel bars. Subsequently, drive the bundle of steel bars to rise through the hoisting mechanism 2 to perform the hoisting operation on the bundle of steel bars;

[0051] When the hoisting of the bundle of steel bars is completed, the hoisting mechanism 2 drives the bundle of steel bars to descend. When the unlocking block 62 abuts against the ground, the unlocking block 62 rises in the clamping claw 32 and squeezes the clamping block 72, so that the clamping block 72 slides out of the receiving groove 611. Subsequently, the receiving block 61 and the connecting block 71 are no longer connected, and the lifting belt 33 and the tightening belt 34 are no longer connected. Start the driver, which drives the two clamping claws 32 to slide in the direction of separating from each other, and the two clamping claws 32 no longer clamp the bundle of steel bars, thus completing the hoisting operation on the bundle of steel bars.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above - mentioned embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above - mentioned embodiments within the scope of the present invention.

Claims

1. A tire-type gantry crane device, comprising a gantry and a hoisting mechanism arranged on the gantry, characterized in that: The hoisting mechanism is provided with a clamping device, which includes a mounting frame, a plurality of clamping claws arranged on the mounting frame and used to clamp the steel bar bundle, and a clamping mechanism arranged on the hoisting mechanism, the clamping mechanism includes a lifting belt arranged on one clamping claw, a clamping belt arranged on another clamping claw, a clamping ring arranged on the clamping belt, and an adjustment component arranged on the hoisting mechanism and used to lift the lifting belt, the lifting belt and the clamping belt are symmetrically arranged with respect to the axis of the steel bar bundle, the lifting belt is inserted in the clamping ring, the steel bar bundle is located between the lifting belt and the clamping belt, when the lifting belt and the clamping belt are connected, the hoisting mechanism lifts the steel bar bundle, the adjustment component drives one end of the lifting belt to rise, and the lifting belt and the clamping belt clamp the steel bar bundle; The adjustment assembly includes a connecting plate connected to the lifting mechanism and a connecting belt for lifting the lifting belt, the connecting plate is slidably matched with the mounting frame along the vertical direction, one end of the connecting belt is connected to the connecting plate, and the other end is connected to the lifting belt; The lifting belt is provided with a receiving mechanism, and the tightening belt is provided with a clamping mechanism for clamping, locking and unlocking the receiving mechanism. When two clamping claws symmetrically arranged along the axis of the steel bar bundle abut against each other, the receiving mechanism and the clamping mechanism are clamped and locked; The receiving mechanism includes a receiving block arranged at one end of the lifting belt and an unlocking block elastically connected to the clamping claw at the receiving block, a receiving groove is provided on the receiving block, the receiving block is slidably matched with the clamping claw, and the unlocking block is slidably matched with the clamping claw along the vertical direction; The clamping mechanism includes a connecting block arranged at one end of the tightening band and a clamping block that is clamped, locked and unlocked with the receiving groove. The clamping block is elastically connected to the connecting block, and the clamping block slides vertically to cooperate with the connecting block. A guiding slope is arranged at the end of the clamping block away from the tightening band. When the guiding slope abuts against the end face of the receiving block away from the lifting band, the receiving block squeezes the clamping block to rise, and the connecting block continues to slide toward the receiving block. The clamping block is inserted into the receiving groove and is clamped and locked with the receiving groove.

2. A rubber-tyred gantry crane device according to claim 1, characterized in that: The mounting frame is provided with a connecting sleeve, the connecting plate is slidably matched with the connecting sleeve along the vertical direction, and an elastic member is provided between the connecting plate and the connecting sleeve.

3. A rubber-tyred gantry crane device according to claim 1, characterized in that: The clamping claw is provided with a mounting groove, an anti-slip wheel is rotatably fitted in the mounting groove, and the anti-slip wheel is slidably fitted with the clamping claw along the radial direction of the clamping claw.

4. A rubber-tyred gantry crane device according to claim 2, characterized in that: A plurality of sliding frames are arranged on the mounting frame, and the sliding frames are slidably matched with the mounting frame along the length direction of the gantry frame. The clamping claws are arranged on the sliding frames, and the connecting sleeves are connected with the sliding frames.

5. A rubber-tyred gantry crane device according to claim 4, characterized in that: The sliding frame is provided with a walking mechanism for driving the sliding frame to walk in the mounting frame.

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