Lifting support suitable for replacing crane cable pulley wheel

Abstract

The utility model discloses a lifting support suitable for replacing a crane cable pulley wheel, which comprises a cross beam, a nut I, a screw, a round backing plate, a bolt pair, a vertical suspender, a horizontal bolt and a nut II, and the nut I is arranged at the center of the lower end face of the cross beam; a screw rod is arranged in the center of the cross beam; the screw rod penetrates through the cross beam and then is connected with the nut I in a matched manner; a round base plate is arranged on the lower end surface of the screw rod; two ends of the cross beam are respectively provided with one vertical suspender; the cross beam and the vertical suspender are fastened and connected through a bolt pair; a horizontal bolt is arranged at the lower end of the vertical suspender; the horizontal bolt penetrates through the two vertical suspenders and then is connected with the vertical suspenders in a fastened mode through nuts II. The lifting of the cross beam can be realized by rotating the screw rod, so that the whole lifting bracket is driven to lift. The device is simple in structure, easy to manufacture, simple and convenient to operate, reliable to use and suitable for replacing crane cable pulley wheels.

Description

Technical Field

[0001] The utility model belongs to the technical field of maintenance equipment, and further belongs to the technical field of crane maintenance equipment. Specifically, it relates to a lifting bracket that is simple in structure, easy to manufacture, convenient to operate, and reliable in use, and is suitable for replacing the wheels of a crane cable trolley. Background Art

[0002] A crane is a key equipment in industrial manufacturing. In steelmaking operations, the crane is used for hoisting molten steel, as well as hoisting equipment and materials. The crane mainly consists of a bridge, a trolley traveling mechanism, a hoisting trolley, an electrical control, and other components. The hoisting trolley includes a main hoisting mechanism, a auxiliary hoisting mechanism, and a trolley traveling mechanism. The hoisting trolley runs on the main beam of the bridge, and its power supply system generally uses cable power supply. The cable moves back and forth with the hoisting trolley. In order to enable the cable to run with the hoisting trolley, an I-beam track is provided on the walkway of the bridge. The I-beam track is parallel to the main beam, and the cable trolley is installed on the I-beam track. The cable is fixed to a plurality of cable trolleys. In this way, when the hoisting trolley runs, it drives the cable trolley and the cable to move, realizing mobile power supply.

[0003] During the daily operation of the cable trolley, the wheels are prone to jamming and damage. If not replaced or repaired in time, it is easy to cause the cable to break or the cable trolley to fall off, affecting the use of the crane. Currently, it is relatively difficult to replace the wheels of the cable trolley. Generally, the cable trolley is manually jacked up online or lifted by borrowing a maintenance hoist to replace the wheels. This method is time-consuming and laborious, with low work efficiency. It takes 4 people 30 minutes to replace one cable trolley wheel, and there are problems such as the vehicle body shaking, people standing unsteadily, and uneven force application during replacement, which are prone to cause many unsafe factors such as slipping, extrusion, and mechanical injuries, and the labor intensity of workers is high. Therefore, researching and developing a lifting bracket that is simple in structure, easy to manufacture, convenient to operate, and reliable in use, and is suitable for replacing the wheels of a crane cable trolley is the key to solving this problem. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a lifting bracket that is simple in structure, easy to manufacture, convenient to operate, and reliable in use, and is suitable for replacing the wheels of a crane cable trolley.

[0005] The purpose of the utility model is achieved in this way, including a crossbeam, a nut I, a screw, a circular pad, a bolt pair, a vertical hanger, a horizontal bolt, and a nut II, wherein a nut I is arranged at the center of the lower end surface of the crossbeam; a screw is arranged at the center of the crossbeam; the screw passes through the crossbeam and is matched with the nut I for connection; a circular pad is arranged at the lower end surface of the screw; one vertical hanger is arranged at each of the two ends of the crossbeam; the crossbeam and the vertical hanger are fastened and connected by a bolt pair; a horizontal bolt is arranged at the lower end of the vertical hanger; the horizontal bolt passes through two vertical hangers and is fastened and connected to the vertical hanger by a nut II.

[0006] The utility model is composed of a crossbeam, a nut I, a screw, a round pad, a bolt pair, a vertical suspension rod, a horizontal bolt and a nut II; a screw is arranged on the crossbeam, and the crossbeam can be lifted and lowered by rotating the screw, thereby driving the whole lifting bracket to lift and lower.

[0007] When inspecting and replacing the wheels of the crane cable pulley, the specific steps are as follows:

[0008] 1. First, assemble the crossbeam, screw rod, bolt pair and vertical hanger into one.

[0009] 2. Place the crossbeam on the I-beam track and place a round pad on the lower end of the screw.

[0010] 3. Rotate the screw to align the connecting holes at the lower ends of the two vertical hangers with the holes on the hanger plate of the cable pulley.

[0011] 4. Pass the horizontal bolt horizontally through the connection hole at the lower end of the vertical hanger and the hole of the hanger plate of the cable pulley, and tighten the connection with nut II.

[0012] 5. Rotate the screw to slowly raise the crossbeam and the cable pulley as a whole until all four wheels of the cable pulley are a certain distance away from the I-beam track.

[0013] 6. Loosen the side panels of the cable pulley, then replace the wheels of the cable pulley on the side panels. After the replacement is completed, put them back on the cable pulley and tighten the side panels.

[0014] 7. Rotate the screw rod in the opposite direction until the cable pulley returns to its original position on the I-beam track. At the same time, remove the horizontal bolts and other parts. At this point, the wheel replacement of the cable pulley is completed.

[0015] The utility model shortens the time for replacing the cable pulley wheel and has high work efficiency. It only takes 10 minutes for 2 people to replace a cable pulley wheel, which reduces labor costs and labor intensity of workers, and also improves the safety working coefficient during operation.

[0016] The utility model has a simple structure, is easy to manufacture, has a simple operation, is reliable in use, and is applicable to replacing the wheels of a cable pulley for a crane. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is Figure 1 left view schematic diagram;

[0019] Figure 3 It is a schematic diagram of the working state of the utility model;

[0020] Figure 4 is Figure 3 left view schematic diagram.

[0021] In the figure: 1 - cross beam, 2 - nut Ⅰ, 3 - screw rod, 4 - round backing plate, 5 - bolt pair, 6 - vertical suspension rod, 7 - horizontal bolt, 8 - nut Ⅱ, 9 - cable pulley, 10 - I-beam track. Detailed Embodiment

[0022] The following further describes the utility model in conjunction with the drawings, but does not limit the utility model in any way. Any transformation based on the teachings of the utility model falls within the protection scope of the utility model.

[0023] As Figures 1 to 4 shown, the utility model includes a cross beam 1, a nut Ⅰ 2, a screw rod 3, a round backing plate 4, a bolt pair 5, a vertical suspension rod 6, a horizontal bolt 7, and a nut Ⅱ 8. A nut Ⅰ 2 is arranged at the center of the lower end face of the cross beam 1; a screw rod 3 is arranged at the center of the cross beam 1; the screw rod 3 passes through the cross beam 1 and is connected with the nut Ⅰ 2 in a matching manner; a round backing plate 4 is arranged at the lower end face of the screw rod 3; one vertical suspension rod 6 is respectively arranged at both ends of the cross beam 1; the cross beam 1 and the vertical suspension rod 6 are firmly connected by a bolt pair 5; a horizontal bolt 7 is arranged at the lower end of the vertical suspension rod 6; the horizontal bolt 7 passes through two vertical suspension rods 6 and is firmly connected with the vertical suspension rod 6 by a nut Ⅱ 8.

[0024] The cross beam 1 and the nut Ⅰ 2 are welded.

[0025] The cross beam 1 is made of channel steel.

[0026] Connection hole plates are respectively arranged at both ends of the cross beam 1.

[0027] The specification of the nut Ⅰ 2 is M14 - M16.

[0028] The specification of the screw rod 3 is the same as that of the nut Ⅰ 2.

[0029] The size of the circular pad 4 is ∮65×5mm.

[0030] The specification of the bolt pair 5 is M8 to M12.

[0031] The vertical suspension rod 6 is made of angle steel of L40×40×4.

[0032] The specification of the horizontal bolt 7 is M12.

[0033] The working principle and working process of this utility model:

[0034] The cross beam 1 of the utility model is provided with a screw rod 3, and the cross beam 1 can be lifted and lowered by rotating the screw rod 3, thereby driving the entire lifting bracket to lift and lower.

[0035] When inspecting and replacing the wheels of the crane cable pulley 9, the specific operating steps are as follows:

[0036] 1. First, assemble the cross beam 1, screw rod 3, bolt pair 5, and vertical suspension rod 6 into one piece.

[0037] 2. Place the crossbeam 1 on the I-beam track 10 and place the round pad 4 on the lower end surface of the screw 3.

[0038] 3. Rotate the screw 3 to align the connecting holes at the lower ends of the two vertical suspension rods 6 with the holes of the suspension plate of the cable pulley 9.

[0039] 4. Pass the horizontal bolt 7 horizontally through the connection hole at the lower end of the vertical suspension rod 6 and the hole of the suspension plate of the cable pulley 9, and fasten the connection with nut II 8.

[0040] 5. Rotate the screw rod 3 to slowly raise the cross beam 1 and the cable pulley 9 as a whole, until all four wheels of the cable pulley 9 are a certain distance away from the I-beam track 10.

[0041] 6. Loosen the side panels of the cable pulley 9, and then replace the wheels of the cable pulley 9 on the side panels. After the replacement is completed, reinstall them on the cable pulley 9 and tighten the side panels.

[0042] 7. Rotate the screw rod 3 in the opposite direction until the cable pulley 9 returns to the original position of the I-beam rail 10, and remove the horizontal bolt 7 and other parts at the same time. At this point, the wheel replacement of the cable pulley 9 is completed.

Claims

1. A lifting bracket suitable for replacing a cable pulley wheel of a crane, comprising a crossbeam (1), a nut I (2), a screw (3), a round pad (4), a bolt pair (5), a vertical suspension rod (6), a horizontal bolt (7), and a nut II (8), wherein: A nut I (2) is arranged at the center of the lower end surface of the crossbeam (1); a screw rod (3) is arranged at the center of the crossbeam (1); the screw rod (3) passes through the crossbeam (1) and is matched with the nut I (2); a circular pad (4) is arranged at the lower end surface of the screw rod (3); one vertical suspension rod (6) is arranged at each end of the crossbeam (1); the crossbeam (1) and the vertical suspension rod (6) are fastened and connected by a bolt pair (5); a horizontal bolt (7) is arranged at the lower end of the vertical suspension rod (6); the horizontal bolt (7) passes through two vertical suspension rods (6) and is fastened and connected to the vertical suspension rod (6) by a nut II (8).

2. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The crossbeam (1) is welded to the nut I (2).

3. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The crossbeam (1) is made of channel steel.

4. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: Connecting orifice plates are respectively arranged at both ends of the crossbeam (1).

5. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The specification of the nut Ⅰ (2) is M14 to M16.

6. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The specifications of the screw rod (3) are consistent with those of the nut I (2).

7. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The size of the circular pad (4) is ∮65×5mm.

8. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The specification of the bolt pair (5) is M8 to M12.

9. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1 is characterized in that: The vertical suspension rod (6) is made of angle steel of L40×40×4.

10. The lifting bracket suitable for replacing the wheel of a crane cable pulley according to claim 1, characterized in that: The specification of the horizontal bolt (7) is M12.

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