CN218261692U

CN218261692U - Auxiliary rope threading device of tower crane

Info

Publication number: CN218261692U
Application number: CN202222718772.1U
Authority: CN
Inventors: 潘佳辉; 徐慧; 陈孝忠
Original assignee: Zhejiang Huba Construction Machinery Co ltd
Current assignee: Zhejiang Huba Construction Machinery Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-10
Anticipated expiration: 2032-10-17

Abstract

The utility model relates to the technical field of rope threading equipment of tower cranes, in particular to an auxiliary rope threading device of a tower crane, which comprises an amplitude-variable steel wire rope, a lifting steel wire rope, a trolley, a movable arm, a first arm joint, a second arm joint, a sharp arm joint, a steel wire rope traction mechanism and a pulley assembly; the steel wire rope traction mechanism comprises a motor and a traction steel wire rope, wherein the motor is connected with an external power circuit; the traction steel wire rope is connected with the output end of the motor; the pulley block is arranged on the movable arm, and the traction steel wire rope penetrates through the pulley block to be detachably connected with the amplitude-variable steel wire rope under the amplitude-variable working condition; when rising the operating mode, traction wire rope passes the assembly pulley and rises wire rope and can dismantle and be connected, through the utility model discloses can realize fast, effectively, safely wear to rise around and become width of cloth wire rope.

Description

Auxiliary rope threading device of tower crane

Technical Field

The utility model relates to a tower crane reeving equipment technical field, concrete field is a rope handling device is assisted to tower crane.

Background

Most tower cranes also adopt manual traction or auxiliary equipment to thread the hoisting steel wire rope, so that manpower and material resources are consumed in the operation of installing and replacing the hoisting steel wire rope, and the efficiency of hoisting preparation operation is low; although hoisting mechanisms are used for threading and tensioning hoisting steel wire ropes on a few tower cranes, most of the hoisting mechanisms are large in size and heavy in weight, and cannot meet the requirements of the whole crane on weight control and convenience in installation and debugging. In particular to a hoisting steel wire rope of a tower crane (T80150), the diameter of which is phi 30, and the weight of which is 447kg/100m; the diameter of the amplitude-variable steel wire rope is phi 16, the weight of the amplitude-variable steel wire rope is 107kg/100m, the steel wire rope is too heavy, 5-6 persons wear the steel wire rope for 8-10 hours only by manpower, the traction efficiency is very low, and the risk of high-altitude operation is increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a supplementary wire rope handling device of tower crane, it can realize fast, effectively, safely wear to rise around and become width of cloth wire rope.

In order to achieve the above object, the utility model provides a following technical scheme: an auxiliary rope threading device of a tower crane comprises an amplitude-variable steel wire rope, a lifting steel wire rope, a trolley, a movable arm, an arm section I, an arm section II, an arm tip section, a steel wire rope traction mechanism and a pulley component;

the steel wire rope traction mechanism comprises a motor and a traction steel wire rope, wherein the motor is connected with an external power circuit; the traction steel wire rope is connected with the output end of the motor;

the pulley block is arranged on the movable arm, and the traction steel wire rope passes through the pulley block and is detachably connected with the amplitude-variable steel wire rope in the amplitude-variable working condition; when the lifting working condition is carried out, the traction steel wire rope passes through the pulley block and is detachably connected with the lifting steel wire rope.

Preferably, the device further comprises a rotary connector; when the working condition of amplitude variation is carried out, the traction steel wire rope penetrates through the pulley block and is connected with the amplitude variation steel wire rope through the rotary connector; when the lifting working condition is carried out, the traction steel wire rope penetrates through the pulley block to be connected with the lifting steel wire rope through the rotary connector.

Preferably, the pulley component comprises an upper chord amplitude variation pulley, an arm tip pulley, a lifting pulley, a trolley riding wheel, a weight limiter pulley and a traction pulley; the upper chord amplitude pulley is arranged on the movable arm; the arm sharp joint pulley is arranged on the arm sharp joint; the lifting pulley is arranged on the first arm section; the trolley riding wheel is arranged on the trolley; and the weight limiter pulley and the traction pulley are both arranged on the arm section II.

Preferably, the upper chord amplitude-changing pulley is arranged between the second arm joint and the arm tip joint.

Preferably, the number of the upper chord amplitude variation pulleys is less than three.

Preferably, the non-fixed end of the amplitude-variable steel wire rope and the non-fixed end of the lifting steel wire rope are both provided with a steel wire mesh sleeve, and the steel wire mesh sleeves are matched with the rotary connector.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up wire rope drive mechanism and setting up the assembly pulley on the arm festival, wire rope directly connects through swivelling joint ware, has promoted the stringing efficiency, and wire rope is owing to block on the assembly pulley simultaneously, mutually supports between the assembly pulley for whole traction route is stable, has increased the security and the stability of stringing.

Drawings

Fig. 1 is a schematic structural diagram of an amplitude variation working condition of the present invention;

fig. 2 is the structural schematic diagram of the lifting operating mode of the present invention.

In the figure: the device comprises a steel wire rope traction mechanism 1, a traction steel wire rope 2, an amplitude variation mechanism 3, an upper chord amplitude variation pulley 4, an arm tip pulley 5, a rotary connector 6, an amplitude variation steel wire rope 7, a lifting pulley 8, a trolley riding wheel 9, a lifting mechanism 10, a lifting steel wire rope 11, a weight limiter pulley 12, a traction pulley 13 and a pulley block 14.

Detailed Description

The following detailed description of the embodiments of the invention, taken in conjunction with the accompanying drawings, will make it clear to those skilled in the art how the invention may be practiced. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not limiting, of the scope of the invention.

The first embodiment is as follows: referring to fig. 1-2, an auxiliary rope threading device for a tower crane comprises: the device comprises a steel wire rope traction mechanism 1, a traction steel wire rope 2, an upper chord amplitude variation pulley 4, an arm tip pulley 5, a rotary connector 6, a lifting pulley 8, a trolley riding wheel 9, a limiter pulley 12 and a traction pulley 13.

The existing tower crane comprises a tower body, a movable arm, a base, an amplitude variation mechanism 3, a hoisting mechanism 10 and the like, wherein the amplitude variation mechanism 3 is matched with an amplitude variation steel wire rope 7; a hoisting steel wire rope 11 is arranged in a matching way on the hoisting mechanism 10; the movable arm is provided with a trolley which moves back and forth and is used for supporting the lifting hook, and the trolley is also provided with a tensioning wheel and a pulley block 14; the movable arm is composed of a plurality of arm sections from the tower body, for easy understanding, the arm sections are sequentially provided with an arm section I, an arm section II and an arm section nine from the tower body, the arm section nine is followed by an arm tip section, and the arm tip section is provided with an anti-twisting mechanism; and the amplitude variation mechanism 3 is arranged on the second arm section.

The steel wire rope traction mechanism 1 and the lifting pulley 8 are both arranged on the arm section I, the steel wire rope traction mechanism 1 comprises a motor, and the motor is connected with an external power circuit and is used for providing traction force for steel wire rope collection; the head end of the traction steel wire rope 2 is connected with the output end of the motor; the number of the upper chord variable amplitude pulleys 4 is three, the three upper chord variable amplitude pulleys 4 are uniformly arranged on the movable arm, and the three upper chord variable amplitude pulleys 4 are positioned between the arm joint II and the arm tip joint; preferably, when the length of the boom of the crane is short, the number of the upper chord amplitude variation pulley 4 can be two or one, and the function of guiding the steel wire rope can also be realized.

The arm tip section pulley 5 is arranged on the arm tip section; in an initial state, the trolley is positioned at the lower side of the first arm section; the trolley riding wheel 9 is arranged on the trolley frame; the weight limiter pulley 12 and the traction pulley 13 are both mounted on the second arm section.

In the embodiment, the device can play a role under two working conditions of amplitude variation and lifting, wherein in amplitude variation, the traction steel wire rope 2 is connected with the amplitude variation steel wire rope 7 through the rotary connector 6; when lifting, the traction wire rope 2 is connected with the lifting wire rope 11 through the rotary connector 6.

The working principle of the device is as follows:

FIG. 1 is a schematic diagram of variable amplitude working conditions: firstly, a traction steel wire rope 2 of a steel wire rope traction mechanism 1 sequentially passes through a lifting pulley 8, a trolley riding wheel 9, an arm tip pulley 5 and three upper chord amplitude-changing pulleys 4, a steel wire mesh sleeve is arranged at the non-fixed end of the amplitude-changing steel wire rope 7, the traction steel wire rope 2 is connected with the amplitude-changing steel wire rope 7 on the amplitude-changing mechanism 3 in a mode of matching the rotary connector 6 with the steel wire mesh sleeve, then a motor is started, the amplitude-changing steel wire rope 7 is directly pulled to the trolley from the amplitude-changing mechanism 3 and is fixed on a tension pulley, and amplitude-changing action can be carried out after rope threading is finished.

Fig. 2 is a schematic view of a lifting condition: firstly, a traction steel wire rope 2 of a steel wire rope traction mechanism 1 sequentially passes through a traction pulley 13 of an arm section II, a pulley block 14, a lifting pulley 8 on the arm section I and a weight limiter pulley 12 to be pulled to a lifting mechanism 10, a steel wire net sleeve is arranged at the non-fixed end of the lifting steel wire rope 11, the traction steel wire rope 2 is connected with the lifting steel wire rope 11 in a mode of matching the rotary connector 6 with the steel wire net sleeve, a motor is started, the lifting steel wire rope 11 is pulled to a trolley to be fixed, the steel wire net sleeve is disassembled, the traction steel wire rope 2 is retracted, the trolley is started to the arm tip, the lifting steel wire rope 11 is fixed on an anti-twisting mechanism, and lifting action can be carried out after rope threading is finished.

Through setting up wire rope drive mechanism 1 and setting up the assembly pulley on the arm festival, wire rope directly passes through the swivelling joint ware and connects, has promoted the threading efficiency, and wire rope is owing to block on the assembly pulley simultaneously for whole traction route is stable, has increased the security and the stability of threading.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rope handling device is assisted to tower crane, includes becomes width of cloth wire rope (7), plays to rise wire rope (11), dolly, swing arm, arm festival one, arm festival two and arm sharp festival, its characterized in that: a steel wire rope traction mechanism (1) and a pulley component;

the steel wire rope traction mechanism (1) comprises a motor and a traction steel wire rope (2) which are connected with an external power circuit; the traction steel wire rope (2) is connected with the output end of the motor;

the pulley block is arranged on the movable arm, and the traction steel wire rope (2) penetrates through the pulley block to be detachably connected with the amplitude-variable steel wire rope (7) under the amplitude-variable working condition; when the hoisting is in a working condition, the traction steel wire rope (2) passes through the pulley block and is detachably connected with the hoisting steel wire rope (11).

2. The auxiliary rope threading device of the tower crane according to claim 1, characterized in that: further comprising a rotary connector (6); when the working condition of amplitude variation is carried out, the traction steel wire rope (2) penetrates through the pulley block and is connected with the amplitude variation steel wire rope (7) through the rotary connector (6); when the hoisting is in a hoisting working condition, the traction steel wire rope (2) passes through the pulley block and is connected with the hoisting steel wire rope (11) through the rotary connector (6).

3. The auxiliary rope threading device of the tower crane according to claim 1, characterized in that: the pulley component comprises an upper chord amplitude variation pulley (4), an arm tip pulley (5), a lifting pulley (8), a trolley riding wheel (9), a weight limiter pulley (12) and a traction pulley (13); the upper chord amplitude pulley (4) is arranged on the movable arm; the arm tip section pulley (5) is arranged on the arm tip section; a lifting pulley (8) is arranged on the first arm section; a trolley riding wheel (9) is arranged on the trolley; the weight limiter pulley (12) and the traction pulley (13) are both arranged on the arm section II.

4. The auxiliary rope threading device of the tower crane according to claim 3, wherein: and the upper chord amplitude-variable pulley (4) is arranged between the arm joint II and the arm tip joint.

5. The auxiliary rope threading device of the tower crane according to claim 3, wherein: the number of the upper chord amplitude-variable pulleys (4) is less than three.

6. The auxiliary rope threading device of the tower crane according to claim 2, characterized in that: and the non-fixed end of the amplitude-variable steel wire rope (7) and the non-fixed end of the lifting steel wire rope (11) are both provided with a steel wire net sleeve, and the steel wire net sleeves are matched with the rotary connector (6).