Full-rotation small crane for binding steel bars of main tower of cable-stayed bridge

Abstract

The utility model discloses a cable-stayed bridge main tower reinforcing steel bar binding full-rotation small crane, which relates to the field of hoisting equipment, and comprises a vertical arm, a rotating unit and a hoisting unit, the rotating unit comprises a support shaft, a driving component and a mounting seat, the support shaft is rotatably mounted at the top end of the vertical arm, and a rotating disc is fixedly mounted at the top end of the support shaft; the driving assembly is installed on the side face of the vertical arm, connected with the rotating disc and used for driving the rotating disc to rotate. The hydraulic rod is not fixed any more by detaching the U-shaped bolt, then the cross beam can be pulled out of the guide sleeve, and the cross beam and the vertical arm are carried in a split mode, so that the size and the weight of the whole machine are reduced, the carrying difficulty and the mounting difficulty are reduced, and the overall moving efficiency and the construction efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hoisting equipment field, concretely relates to a cable-stayed bridge main tower steel bar binding full-rotation small crane. BACKGROUND

[0002] With the rapid development of infrastructure construction in our country, as an important bridge structure form, cable-stayed bridge has been widely applied. In the construction process of cable-stayed bridge, the binding work of main tower steel bar is a key link. Because the height of main tower is higher, small crane is used to hoist materials such as steel bar.

[0003] Now, the stand column and the lifting arm of the small crane are usually fixed together, which is inconvenient to disassemble and separate. With the increase of the construction height of the main tower, the small crane is difficult to carry and install, the operation is complex, the efficiency of the overall movement is low, and the construction progress is affected.

[0004] Therefore, we propose a cable-stayed bridge main tower steel bar binding full-rotation small crane to solve the above problems. CONTENT OF UTILITY MODEL

[0005] In view of the problem that the stand column and the lifting arm of the small crane are usually fixed together, which is inconvenient to disassemble and separate, the utility model provides a cable-stayed bridge main tower steel bar binding full-rotation small crane.

[0006] The utility model adopts the scheme that a cable-stayed bridge main tower steel bar binding full-rotation small crane, including vertical arm, rotating unit and hoisting unit, rotating unit includes support shaft, drive assembly and mounting seat, support shaft rotation is installed at the top of vertical arm, its top fixed installation has rotating disc, drive assembly is installed at the side of vertical arm, and is connected with rotating disc, is used for driving rotating disc rotation;

[0007] Mounting seat fixed installation is in the top of rotating disc;

[0008] Hoisting unit includes guide sleeve, hydraulic rod, connecting piece, beam assembly and electric hoist, guide sleeve fixed installation is in the front side of mounting seat, its inside slide sets up crossbeam, hydraulic rod passes through connecting piece and is detachably installed on mounting seat, and its telescopic end is connected with crossbeam through beam assembly;

[0009] The one end of crossbeam is fixedly installed with connecting seat, and the electric hoist is fixedly installed at the bottom end of the connecting seat.

[0010] Preferably, the crossbeam is made of high-strength steel pipe, and the vertical arm is made of square steel pipe.

[0011] Preferably, the drive assembly includes a drive motor and an inner gear ring mounted on the bottom of the rotating disc, the drive motor is fixedly installed on the side of the vertical arm, a gear is sleeved on the output shaft of the drive motor, and the gear is engaged with the inner gear ring.

[0012] Preferably, the connecting piece is a U-shaped bolt.

[0013] Preferably, the brace beam assembly comprises a pipe clamp and a connecting block, the connecting block is fixedly connected with the telescopic end of the hydraulic rod, the pipe clamp is sleeved on the cross beam, and the top of the pipe clamp is welded with the connecting block.

[0014] Preferably, the bottom end of the vertical arm is fixedly provided with a fixing clamp, and the fixing clamp is fixedly installed on the stiff skeleton through bolts.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. The utility model discloses a U-shaped bolt is removed, the hydraulic rod is no longer fixed, then the cross beam can be pulled out from the guide sleeve, the cross beam and the vertical arm are carried in a split body, the volume and the weight of the whole machine are reduced, the carrying difficulty and the installation difficulty are reduced, and the overall moving efficiency and the construction efficiency are improved.

[0017] 2. The utility model discloses that the cross beam is supported and positioned through the guide sleeve, so that the stability of the cross beam in the sliding process is ensured, the cross beam is driven to move left and right through the hydraulic rod, then the position of the cross beam is adjusted, so that the reinforcing steel bar storage frame is hoisted to the appropriate position.

[0018] 3. The utility model discloses that the driving motor drives the gear to rotate, the gear is engaged transmission inner tooth ring, makes the rotary disc, mounting seat, cross beam and hydraulic rod synchronous rotation certain angle, can carry out hoisting operation in different directions, so that the reinforcing steel bar storage frame is hoisted to the appropriate position. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the front view structural schematic diagram of the utility model;

[0020] Figure 2 It is the cross section three-dimensional structure schematic diagram of the utility model.

[0021] In the drawing: 1 vertical arm, 2 fixing clamp, 31 driving motor, 32 rotary disc, 33 inner tooth ring, 34 mounting seat, 35 supporting shaft, 36 gear, 5 U-shaped bolt, 6 hydraulic rod, 71 connecting block, 72 pipe clamp, 81 guide sleeve, 82 cross beam, 83 connecting seat, 84 electric hoist, 9 reinforcing steel bar storage frame. DETAILED DESCRIPTION

[0022] The utility model is further explained in connection with the drawings and examples.

[0023] Please refer to Figures 1-2 The utility model provides a kind of technology scheme of cable-stayed bridge main tower reinforcing steel bar binding full-rotation small crane:

[0024] Example one:

[0025] According to Figure 1 and Figure 2 As shown in the drawings, including the vertical arm 1, rotating unit and lifting unit, vertical arm 1 is made of square steel pipe, the bottom end of vertical arm 1 is fixedly installed with fixed card 2, fixed card 2 is fixedly installed on the rigid skeleton by bolts, vertical arm 1 is stably supported, and the stability of vertical arm 1 in use is ensured.

[0026] The rotating unit comprises a support shaft 35, a driving assembly and a mounting seat 34, the bottom end of the support shaft 35 is sleeved with a bearing, the bearing is installed at the top end of the vertical arm 1, so that the support shaft 35 can stably rotate, and the top end of the support shaft 35 is fixedly installed with a rotating disc 32.

[0027] The driving assembly comprises a driving motor 31 and an inner ring gear 33 installed at the bottom of the rotating disc 32, the driving motor 31 is fixedly installed on the side surface of the vertical arm 1, a gear 36 is sleeved on the output shaft of the driving motor 31, the gear 36 is engaged with the inner ring gear 33, the gear 36 is driven to rotate by the driving motor 31, the gear 36 engages to drive the inner ring gear 33, and the rotating disc 32 is driven to rotate.

[0028] The mounting seat 34 is fixedly installed on the top of the rotating disc 32;

[0029] The lifting unit comprises a guide sleeve 81, a hydraulic rod 6, a connecting piece, a beam holding assembly and an electric hoist 84, the connecting piece is a U-shaped bolt 5, the guide sleeve 81 is fixedly installed on the front side of the mounting seat 34, a cross beam 82 is slidably arranged in the guide sleeve 81, the cross beam 82 is supported and limited by the guide sleeve 81, so as to ensure the stability of the cross beam 82 in the sliding process, and the cross beam 82 is made of high-strength steel pipe.

[0030] The hydraulic rod 6 is detachably installed on the mounting seat 34 through the U-shaped bolt 5, the hydraulic rod 6 is fixed through the U-shaped bolt 5, so as to ensure the stability of the hydraulic rod 6 in use, the beam holding assembly comprises a pipe clamp 72 and a connecting block 71, the connecting block 71 is fixedly connected with the telescopic end of the hydraulic rod 6, the pipe clamp 72 is sleeved on the cross beam 82, and the top of the pipe clamp 72 is welded with the connecting block 71; under the connecting action of the pipe clamp 72 and the connecting block 71, the cross beam 82 is driven to move left and right by controlling the extension and contraction of the hydraulic rod 6, and the position of the cross beam 82 is adjusted.

[0031] One end of the cross beam 82 is fixedly installed with a connecting seat 83, the electric hoist 84 is fixedly installed at the bottom end of the connecting seat 83, the lifting rope of the electric hoist 84 is connected with the steel bar storage frame 9, and the steel bar storage frame 9 can be lifted by controlling the electric hoist 84 to wind the lifting rope.

[0032] In specific use, the utility model discloses a kind of full-rotation small cranes for reinforcing bar binding of cable-stayed bridge main tower, first, vertical arm 1 is erected, and make fixed card 2 buckle on rigid skeleton, then bolt is used to connect fixed card 2 with rigid skeleton, ensure the stability of vertical arm 1 in use process, then crossbeam 82 is inserted into guide sleeve 81, crossbeam 82 is supported using guide sleeve 81, then hydraulic rod 6 is fixed on mounting seat 34 using U-shaped bolt 5, and pipe clamp 72 is connected with crossbeam 82, finally, the lifting rope of electric hoist 84 is connected with reinforcing bar storage frame 9;

[0033] When hoisting and transporting reinforcing bar, first, reinforcing bar is placed in reinforcing bar storage frame 9, then electric hoist 84 is controlled to wind lifting rope, reinforcing bar storage frame 9 is hoisted, finally, workers orderly control the work of driving motor 31 and hydraulic rod 6, adjust the position of crossbeam 82, hoist and transport reinforcing bar storage frame 9 to appropriate position.

Claims

1. A small, fully rotating crane for tying steel bars of the main tower of a cable-stayed bridge, comprising a boom, a rotating unit, and a lifting unit, characterized in that: The rotating unit includes a support shaft, a drive assembly, and a mounting base. The support shaft is rotatably mounted on the top of the vertical arm, and a rotating disk is fixedly mounted on its top. The drive assembly is mounted on the side of the vertical arm and connected to the rotating disk to drive the rotating disk to rotate. The mounting base is fixedly installed on the top of the rotating disk; The lifting unit includes a guide sleeve, a hydraulic rod, a connector, a beam assembly, and an electric hoist. The guide sleeve is fixedly installed on the front side of the mounting base, and a crossbeam is slidably installed inside it. The hydraulic rod is detachably installed on the mounting base through the connector, and its telescopic end is connected to the crossbeam through the beam assembly. A connecting seat is fixedly installed at one end of the crossbeam, and the electric hoist is fixedly installed at the bottom end of the connecting seat.

2. The small, fully rotating crane for tying the main tower reinforcement of a cable-stayed bridge according to claim 1, characterized in that: The crossbeam is made of high-strength steel pipe, and the vertical arm is made of square steel pipe.

3. The small, fully rotating crane for tying the main tower reinforcement of a cable-stayed bridge according to claim 1, characterized in that: The drive assembly includes a drive motor and an internal gear ring mounted on the bottom of the rotating disk. The drive motor is fixedly mounted on the side of the vertical arm, and a gear is mounted on its output shaft, which meshes with the internal gear ring.

4. The small, fully rotating crane for tying the main tower reinforcement of a cable-stayed bridge according to claim 1, characterized in that: The connector is a U-bolt.

5. The small, fully rotating crane for tying the main tower reinforcement of a cable-stayed bridge according to claim 1 or 2, characterized in that: The beam clamp assembly includes pipe clamps and connecting blocks. The connecting blocks are fixedly connected to the telescopic end of the hydraulic rod. The pipe clamps are fitted onto the crossbeam, and their tops are welded to the connecting blocks.

6. The small-scale crane for tying the main tower reinforcement of a cable-stayed bridge according to claim 1, characterized in that: The bottom end of the vertical arm is fixedly installed with a fixing clip, which is fixedly installed on the rigid frame by bolts.

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