CN110697585A - A mechanism for self-detaching attachment device - Google Patents

Abstract

The invention discloses a mechanism for self-detaching an attachment device. It includes an attachment bracket detachably fixed on the tower crane, the attachment bracket is connected with a hanging beam, the length of the hanging beam extending from the front side of the attachment bracket is adjustable, and the upper part of the attachment bracket and the front end of the hanging beam are A number of traction wire ropes are connected on the side, a support is fixed on the attachment bracket, a hoisting component is arranged on the support, and the hoisting component includes a wire rope, a pulley is fixed at the front end of the hanging beam, and the wire rope goes around The pulley protrudes from the lower side, and the lower end of the wire rope is provided with a sling. The present invention is simple in structure, can be standardized on the tower crane, and can be temporarily installed and used when the attachment device needs to be disassembled. Applicable to attachments of different lengths for easy adjustment and use.

Description

A mechanism for self-detaching attachment device

technical field

The invention relates to the field of tower cranes, in particular to a mechanism for self-demolition of an attachment device.

Background technique

With the vigorous development of infrastructure in our country, super-large bridges in various regions are rising from the ground, and the application of tower cranes as vertical transport machinery for the construction of bridge main towers is also increasingly widespread. An important part of use and safe disassembly. Usually, the tower crane can be used to hoist the attachment device for installation during the attachment installation, but it is cumbersome to remove the attachment device after the construction of the building is completed, because at this time, due to the obstruction of the building, the boom of the tower crane can only be Keep the direction parallel to the building, so that the hook cannot hoist the attachment device perpendicular to the building. The project site often needs to install a hoisting mechanism on the top of the bridge tower combined with the chain hoist to complete the removal of the attachment device, which has low work efficiency and safety. Low.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a mechanism for self-detaching the attachment device in view of the deficiencies in the prior art.

In order to achieve the above purpose, the present invention provides a mechanism for self-demolition of the attachment device, including an attachment bracket detachably fixed on a tower crane, the attachment bracket is connected with a hanging beam, and the hanging beam extends from the front side of the attachment bracket. The outgoing length is adjustable, the upper part of the attachment bracket is connected with the upper side of the front end of the hanging beam with a number of traction wire ropes, the attachment bracket is fixed with a support, the support is provided with a hoisting part, and the hoisting part It includes a wire rope, a pulley is fixed at the front end of the hanging beam, the wire rope goes around the pulley and protrudes out of the lower side, and the lower end of the wire rope is provided with a sling.

Further, the support includes a seat plate fixed on the rear side of the attachment bracket, a plurality of support beams are spaced on the upper side of the seat plate, the upper end of the support beam is fixed with a mounting plate, and it is connected with the seat plate and the seat plate. The mounting plate is enclosed to form an avoidance hole, and the suspension beam is arranged through the avoidance hole.

Further, the attachment bracket includes a mouth-shaped frame, a connecting plate is fixed on the lower side of the four corners of the frame, the connecting plate is bolted to the tower crane, and at least two limit plates are arranged on the upper side of the frame. , the limiting plate is provided with a limiting hole for the hanging beam to pass through.

Further, the attachment bracket is connected to one end of a plurality of chain hoists, a plurality of connecting holes are provided on the upper parts of the two axial sides of the hanging beam, and the other end of the chain hoist is connected to the hanging beam through the connecting holes.

Further, the spreader includes a U-shaped lifting lug.

Further, the attachment bracket is bolted to the tower crane.

Further, the chain hoist includes four, which are respectively connected to the inner sides of the four corners of the attachment bracket.

Further, the hoisting component includes a motor, a reducer connected to the motor, and a drum connected to the reducer and coiling the wire rope.

Further, the traction wire rope is connected between the upper end of the limiting plate and the front end of the hanging beam.

Beneficial effects: The present invention has a simple structure, can be standardized on the tower crane, and can be temporarily installed and used when the attachment device needs to be disassembled and assembled. Telescopic, and then suitable for attachment devices of different lengths, easy to adjust and use.

Description of drawings

1 is a schematic structural diagram of a mechanism of a self-detaching attachment device according to an embodiment of the present invention;

Fig. 2 is the bottom view schematic diagram of Fig. 1;

Fig. 3 is the partial schematic diagram of Fig. 1;

Figure 4 is a schematic diagram of the connection between the attachment bracket and the tower crane.

Detailed ways

The present invention is further illustrated below in conjunction with the accompanying drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

As shown in FIGS. 1 to 4 , an embodiment of the present invention provides a mechanism for self-detaching an attachment device, including an attachment bracket 1 , the attachment bracket 1 is detachably fixed on the tower crane 2 , and the attachment bracket 1 is connected with a crane For the beam 3, the front side is the side where the attachment device is hoisted and removed. The length of the hoisting beam 3 extending from the front side of the attachment bracket 1 can be adjusted to meet different lengths of the attachment device. Generally, the adjustment range is 2 to 15 meters. A plurality of traction wire ropes 4 are connected to the upper part of the attachment bracket 1 and the upper side of the front end of the hanging beam 3 , so as to improve the hoisting capacity of the hanging beam 3 . A support 5 is fixed on the attachment bracket 1, a hoisting part 6 is arranged on the support 5, the hoisting part 6 includes a wire rope 61, and a pulley 7 is fixed at the front end of the hanging beam 3, and the wire rope 61 goes around the pulley 7 and extends down On the side, the lower end of the wire rope 61 is provided with a hanger 8 . The spreader 8 includes hooks or U-shaped lugs that can be used.

The support 5 in the embodiment of the present invention is preferably arranged on the rear side of the attachment bracket 1 . The support 5 includes a seat plate 51 fixed on the rear side of the attachment bracket 1 , and a plurality of support beams 52 are spaced on the upper side of the seat plate 51 . 52 is preferably 4, and the upper end of the support beam 52 is fixed with a mounting plate 53, the support beam 52 is enclosed with the seat plate 51 and the mounting plate 53 to form an avoidance hole, and the suspension beam is interspersed with the avoidance hole to set, and the avoidance hole can avoid affecting the suspension beam 3 telescopic. The hoisting component is installed on the upper side of the mounting plate 53. The embodiment of the present invention adopts the hoisting component 6 to include a motor 62, a reducer 63 and a reel 64 fixed on the upper side of the mounting plate 53, wherein the motor 62 is connected to the reducer 63. , the reducer 63 is connected with the drum 64, the wire rope 61 is coiled and arranged on the drum 64, and then, when the motor 62 drives the drum 64 to rotate, the wire rope 61 can be retracted and retracted to realize the hanging and attaching device.

The attachment bracket 1 of the embodiment of the present invention includes a mouth-shaped frame 11 , and a connecting plate 12 is fixed on the lower side of the four corners of the frame 11 . The connecting plate 12 is preferably connected with the tower crane 2 by bolts 9 . There are two limit plates 13 , and limit holes 14 for the suspension beam 3 to pass through are provided on the limit plates 13 . The limiting hole 14 can prevent the suspension beam 3 from tilting when the front and rear forces are unevenly applied.

In order to facilitate the telescopic adjustment of the hanging beam, it is preferable to connect the attachment bracket 1 to one end of a plurality of chain hoists 10, and to provide a plurality of connecting holes 31 on the upper parts of the two axial sides of the hanging beam 3. The connecting hole 31 is connected with the hanging beam 3 . Preferably, four chain hoists 10 are used, and connecting plates 15 can be provided on the inner side of the four corners of the attachment bracket 1, and each connecting plate 15 is provided with a hanging hole 16, and the four chain hoists 10 are respectively connected to each other through the hanging holes 16. Attach bracket 1 to the inside of the four corners. By replacing the connecting holes 31 matched with the chain hoists 10 one by one, the length of the boom 3 extending from the front side of the attachment bracket 1 can be adjusted.

The above description is only a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, other parts that are not specifically described belong to the prior art or common knowledge. On the premise of not departing from the principles of the present invention, several improvements and modifications can also be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a from tearing open attachment's mechanism, its characterized in that, is including dismantling the attached support of fixing on tower crane, it has the hanging beam to adhere to the leg joint, the length that the hanging beam stretches out from attached support front side is adjustable, it is connected with a plurality of traction wire rope with the front end upper side of hanging beam to adhere to support upper portion, be fixed with the support on the attached support, be equipped with the hoist part on the support, the hoist part includes wire rope, the hanging beam front end is fixed with the pulley, wire rope walks around the pulley and stretches out the downside, wire rope's lower extreme is equipped with the hoist.

2. The mechanism of self-detaching attachment device as claimed in claim 1, wherein the support comprises a base plate fixed at the rear side of the attachment bracket, a plurality of support beams are arranged at intervals on the upper side of the base plate, a mounting plate is fixed at the upper end of each support beam, the support beams, the base plate and the mounting plate enclose to form an avoiding hole, and the hanging beam is inserted into the avoiding hole.

3. The mechanism of the self-detaching attachment device according to claim 1, wherein the attachment bracket includes a frame shaped like a Chinese character 'kou', connecting plates are fixed to lower sides of four corners of the frame, the connecting plates are connected with the tower crane through bolts, at least two limiting plates are arranged on the upper side of the frame, and limiting holes for the hanging beam to pass through are formed in the limiting plates.

4. The mechanism of self-detaching the attaching device according to claim 3, wherein the attaching bracket is connected to one ends of a plurality of chain blocks, the upper portions of two axial sides of the hanging beam are provided with a plurality of connecting holes, and the other ends of the chain blocks are connected to the hanging beam through the connecting holes.

5. The mechanism of self-detaching attachment device of claim 1, wherein the spreader includes a U-shaped lifting lug.

6. The mechanism of self-detaching an attachment device according to claim 1, wherein the attachment bracket is bolted to a tower crane.

7. The mechanism of self-detaching the attaching device according to claim 4, wherein the chain block includes 4 blocks, which are respectively attached to the inner sides of the four corners of the attaching bracket.

8. The mechanism of self-detaching an attachment device according to claim 1, wherein the hoisting member includes a motor, a speed reducer connected to the motor, and a drum connected to the speed reducer and wound around the wire rope.

9. The mechanism of self-detaching the attaching device according to claim 3, wherein the traction wire rope is connected between the upper end of the position-limiting plate and the front end of the hanging beam.

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