CN221420489U

CN221420489U - Hoisting mechanism for maintaining tower crane

Info

Publication number: CN221420489U
Application number: CN202323507786.XU
Authority: CN
Inventors: 田威; 薛可香
Original assignee: Hainan Tianshi Technology Development Co ltd
Current assignee: Hainan Tianshi Technology Development Co ltd
Priority date: 2023-12-20
Filing date: 2023-12-20
Publication date: 2024-07-26
Anticipated expiration: 2033-12-20

Abstract

The utility model discloses a hoisting mechanism for maintaining a tower crane, which comprises a foundation bearing table, wherein a supporting main frame is fixedly arranged on the foundation bearing table, a crane cross arm is arranged at the top of the supporting main frame through a rotary table, an amplitude-changing trolley is arranged at one end of the crane cross arm, a matching and recombination device is arranged at one end of the crane cross arm, which is far away from the amplitude-changing trolley, a lifting device is arranged at one end of the crane cross arm, which is positioned at the counterweight group, and a lifting device auxiliary hoisting structure is arranged on the crane cross arm through a supporting frame, and the hoisting mechanism has the beneficial effects that: the device has simple structure and convenient use, when the relatively heavy lifting device is in a problem, the lifting device does not need to be lifted through equipment on the ground, but directly completes the lifting and lowering work on the lifting device in high air, does not need to be provided with special lifting equipment, reduces the maintenance cost of the lifting device, and increases the lifting efficiency.

Description

Hoisting mechanism for maintaining tower crane

Technical Field

The utility model relates to the technical field of tower cranes, in particular to a lifting mechanism for maintaining a tower crane.

Background

The tower crane is the most commonly used hoisting equipment on the construction site, is used for hoisting construction raw materials such as reinforcing steel bars, wood ribs, concrete, steel pipes and the like, is an indispensable equipment on the site, and has the function of bearing upper loads transmitted by arm support pull ropes and balance arm pull ropes.

The crane for the tower crane is a power source for lifting objects by the tower crane, and because of the requirement of output power, the crane is very heavy, if the crane is damaged and needs to be replaced or cannot be directly maintained on the tower crane, the crane needs to be transported down, and the transportation process is very difficult, and is generally provided with a special maintenance crane for lifting the crane, and a maintenance crane for lifting, so that the whole cost is greatly increased, the lifting efficiency is low, and the maintenance progress is influenced.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to provide a lifting mechanism for maintaining a tower crane.

In order to achieve the above purpose, the lifting mechanism for the maintenance tower crane comprises a foundation bearing table, wherein a supporting main frame is fixedly arranged on the foundation bearing table, a crane cross arm is arranged at the top of the supporting main frame through a rotary table, an amplitude-changing trolley is arranged at one end of the crane cross arm, a matching and recombination device is arranged at one end, far away from the amplitude-changing trolley, of the crane cross arm, a lifter is arranged at one end, located by the weight-changing group, of the crane cross arm, and an auxiliary lifting structure of the lifter is arranged on the crane cross arm through a supporting frame.

Preferably, the auxiliary lifting structure of the lifting device comprises a supporting transverse plate fixed at the top of the supporting frame, a lifting device sliding mechanism is installed at the bottom of the supporting transverse plate, and a lifting device falling mechanism is connected to the bottom of the lifting device sliding mechanism.

Preferably, the lifter sliding mechanism comprises fixed side plates fixed on two sides of the bottom of the supporting transverse plate, a driving wheel and a driven wheel are arranged between the fixed side plates through movable shafts, and the driving wheel is connected with the driven wheel through a transmission chain.

Preferably, the positive and negative motor is installed to the one end of fixed curb plate, positive and negative motor's output with the action wheel is connected, fixed curb plate keeps away from install limit stop between the one end bottom of action wheel, be equipped with on the limit stop with positive and negative motor control is connected travel switch.

Preferably, the lifting device falling mechanism comprises a fixed plate fixed on the transmission chain, the bottom of the fixed plate is connected with an anti-swing driving mechanism through a fixed column, and triangular support plates are connected between the fixed column and the fixed plate and between the fixed column and the anti-swing driving mechanism.

Preferably, the bottom of the anti-swing driving mechanism is connected with a hoisting steel wire cable, and a hoisting hook is arranged at the bottom of the hoisting steel wire cable.

Preferably, the anti-swing driving mechanism comprises an outer box body, a guide opening is formed in the bottom of the outer box body, a driving motor is arranged on one side of the outer wall of the outer box body, the output end of the driving motor is connected with a linkage shaft, a hoisting wheel is mounted on the linkage shaft, and the hoisting steel wire cable is wound on the hoisting wheel.

Preferably, the outer box body is internally provided with anti-offset rollers symmetrically arranged below the hoisting wheels, the anti-offset rollers are provided with mounting brackets through connecting rotating shafts, and the mounting brackets are fixed in the outer box body.

The utility model provides a lifting mechanism hoisting mechanism for maintaining a tower crane, which has the following beneficial effects:

The device is simple in structure and convenient to use, when the heavy lifting device is in a problem, the lifting device does not need to be lifted through equipment on the ground, but directly finishes lifting and lowering work on the heavy lifting device in a high altitude, special lifting equipment is not needed, the maintenance cost of the lifting device is reduced, and the lifting efficiency is increased.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a hoisting mechanism for a repair tower according to an embodiment of the utility model;

Fig. 2 is a schematic structural view of an auxiliary hoisting structure of a lifter in a hoisting mechanism of a hoisting mechanism for maintaining a tower crane according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a jack-up mechanism in a jack-up mechanism hoisting mechanism for maintaining a tower crane according to an embodiment of the present utility model;

Fig. 4 is a schematic structural view of a lifting device dropping mechanism in a lifting mechanism for maintaining a tower crane according to an embodiment of the present utility model;

Fig. 5 is a schematic structural view of an anti-swing driving mechanism in a hoisting mechanism for a maintenance tower crane according to an embodiment of the present utility model.

In the figure:

1. A base load-bearing table; 2. a support main; 3. a rotary table; 4. a crane cross arm; 5. a luffing trolley; 6. matching and recombining; 7. a lifter; 8. a support frame; 9. auxiliary hoisting structure of the lifter; 10. a supporting cross plate; 11. a lifter sliding mechanism; 12. a lifting device dropping mechanism; 13. fixing the side plates; 14. driven wheel; 15. a driving wheel; 16. a drive chain; 17. a forward and reverse motor; 18. a limit stop; 19. a fixing plate; 20. fixing the column; 21. a triangular support plate; 22. an anti-swing driving mechanism; 23. hoisting the steel wire cable; 24. hoisting hooks; 25. an outer case; 26. a guide opening; 27. a driving motor; 28. a linkage shaft; 29. hoisting wheels; 30. a mounting bracket; 31. an anti-offset roller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a hoisting mechanism for maintaining a tower crane according to an embodiment of the present utility model includes a foundation bearing table 1, a supporting main frame 2 is fixedly installed on the foundation bearing table 1, a crane cross arm 4 is installed on the top of the supporting main frame 2 through a rotary table 3, an amplitude-changing trolley 5 is disposed at one end of the crane cross arm 4, a counterweight group 6 is installed at one end of the crane cross arm 4 far away from the amplitude-changing trolley 5, the rotary table 3 and the crane cross arm 4 are supported by the supporting main frame 2 through the supporting main frame 1, the balance of the equipment during hoisting can be ensured by the disposed counterweight group 6, a lifter 7 is installed at one end of the counterweight group 4, a lifter auxiliary hoisting structure 9 is installed on the crane cross arm 4 through a supporting frame 8, when the equipment lifter 7 needs to be maintained, the equipment can be dismounted later through the effect of the lifter auxiliary hoisting structure 9, the equipment is hoisted through the fixed installation of the supporting main frame 2, the equipment can be directly lifted to the equipment when the equipment needs to be maintained, the equipment needs to be directly lifted on the ground, and the equipment needs not to be lifted by the special equipment, the special equipment needs to be lifted when the equipment is required to be directly lifted, the equipment is not lifted, and the equipment needs to be directly lifted by the special equipment is not to be convenient to be maintained, and the equipment is convenient to be lifted when the equipment is required to be directly in the equipment to be lifted, and is convenient to be in the utility model, and the equipment is compared to be lifted to be directly in the equipment to be in the need to be convenient to be compared to be used and convenient to be in the convenient to be used and to be used.

In an embodiment, referring to fig. 2 of the specification, the auxiliary lifting structure 9 for a lifter includes a supporting transverse plate 1O fixed on the top of the supporting frame 8, a lifter sliding mechanism 11 is installed at the bottom of the supporting transverse plate 1O, and a lifter dropping mechanism 12 is connected to the bottom of the lifter sliding mechanism 11. The lifting device sliding mechanism 11 is matched with the lifting device dropping mechanism 12, so that the lifting device 7 can be lifted and translated out, and finally, the lifting device is dropped on the ground.

In an embodiment, referring to fig. 3 of the specification, the lifter sliding mechanism 11 includes fixed side plates 13 fixed on two sides of the bottom of the supporting transverse plate 1O, a driving wheel 15 and a driven wheel 14 are installed between the fixed side plates 13 through a movable shaft, the driving wheel 15 and the driven wheel 14 are connected through a transmission chain 16, a forward and reverse motor 17 is installed at one end of the fixed side plate 13, an output end of the forward and reverse motor 17 is connected with the driving wheel 15, a limit stop 18 is installed between the bottom of one end of the fixed side plate 13, which is far away from the driving wheel 15, and a travel switch in control connection with the forward and reverse motor 17 is arranged on the limit stop 18. The driving wheel 15 is driven by the positive and negative motor 17, so that the transmission chain 16 is driven by the cooperation of the driven wheel 14, the lifting device falling mechanism 12 arranged on the transmission chain 16 can translate, when the lifting device falling mechanism is translated to the limit stop 18, the positive and negative motor 17 automatically stops when a travel switch is touched, and the positive and negative motor 17 can automatically return after the lifting and falling work of the lifting device 7 is completed.

In an embodiment, please refer to fig. 4 and 5 of the present disclosure, the falling mechanism 12 of the lifting device includes a fixing plate 19 fixed on the driving chain 16, the bottom of the fixing plate 19 is connected with an anti-swing driving mechanism 22 through a fixing column 20, triangular support plates 21 are respectively connected between the fixing column 20 and the fixing plate 19 and the anti-swing driving mechanism 22, the bottom of the anti-swing driving mechanism 22 is connected with a lifting steel wire cable 23, a lifting hook 24 is mounted at the bottom of the lifting steel wire cable 23, the anti-swing driving mechanism 22 includes an outer box 25, a guiding opening 26 is formed at the bottom of the outer box 25, a driving motor 27 is disposed at one side of the outer wall of the outer box 25, an output end of the driving motor 27 is connected with a linkage shaft 28, lifting wheels 29 are mounted on the linkage shaft 28, anti-swing rollers 31 are symmetrically disposed below the lifting wheels 29 in the outer box 25, and the anti-swing rollers 31 are connected with mounting brackets 30, and the mounting brackets 30 are mounted in the outer box 25. The lifting wheel 29 on the linkage shaft 28 is driven to rotate by the driving motor 27, so that the lifting steel wire cable 23 is lowered, the lifting device 7 on the lifting hook 24 is lowered, and the lifting steel wire cable 23 passes through the middle through the two anti-deflection rollers 31, so that when the lifting steel wire cable 23 is lowered, the source of the lifting steel wire cable 23 can be prevented from shaking, the shaking of the lifting device 7 during the lowering is greatly reduced, and the safety of the lifting steel wire cable is improved.

In practical application, through fixedly mounting the support main frame 2 on the foundation plummer 1, utilize the support main frame 2 to support revolving stage 3 and hoist xarm 4, the balance of equipment when hoist and mount can be guaranteed to counterweight group 6 that sets up, the supplementary hoisting structure 9 of lifting device that sets up is when using, when the lifting device 7 of equipment goes wrong and need carry out maintenance, can dismantle it back, through the effect of the supplementary hoisting structure 9 of lifting device, lift it, and directly hoist it to subaerial, the convenient follow-up maintenance work, the device of the application is simple in structure, convenient to use, when facing the relatively heavy lifting device 7 and going wrong, need not hoist it through the equipment on ground, but directly accomplish the hoist and put work to it in the high altitude, the cost of lifting device 7 maintenance has been reduced, and the efficiency of lifting has been increased simultaneously.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Claims

1. Hoisting mechanism that maintenance tower crane was used, a serial communication port, including basic plummer (1), fixed mounting has on basic plummer (1) and supports body frame (2), hoist xarm (4) are installed through revolving stage (3) at the top of supporting body frame (2), the one end of hoist xarm (4) is provided with luffing trolley (5), the one end that is kept away from of hoist xarm (4) luffing trolley (5) is installed and is joined in marriage recombinant (6), hoist xarm (4) are located one end of weight group (6) is installed and is played to lifting device (7), install on hoist xarm (4) and play supplementary hoisting structure (9) of lifting device through support frame (8).

2. Hoisting mechanism for a maintenance tower crane according to claim 1, characterized in that the auxiliary hoisting mechanism (9) for a lifter comprises a supporting transverse plate (10) fixed at the top of the supporting frame (8), a lifter sliding mechanism (11) is installed at the bottom of the supporting transverse plate (10), and a lifter falling mechanism (12) is connected to the bottom of the lifter sliding mechanism (11).

3. Hoisting mechanism for a maintenance tower crane according to claim 2, characterized in that the lifter sliding mechanism (11) comprises fixed side plates (13) fixed on two sides of the bottom of the supporting transverse plate (10), a driving wheel (15) and a driven wheel (14) are mounted between the fixed side plates (13) through movable shafts, and the driving wheel (15) and the driven wheel (14) are connected through a transmission chain (16).

4. A hoisting mechanism for a maintenance tower crane according to claim 3, characterized in that, a positive and negative motor (17) is installed at one end of the fixed side plate (13), the output end of the positive and negative motor (17) is connected with the driving wheel (15), a limit stop (18) is installed between one end bottom of the fixed side plate (13) far away from the driving wheel (15), and a travel switch in control connection with the positive and negative motor (17) is arranged on the limit stop (18).

5. Hoisting mechanism for a maintenance tower crane according to claim 4, characterized in that the lifting device dropping mechanism (12) comprises a fixed plate (19) fixed on the transmission chain (16), the bottom of the fixed plate (19) is connected with an anti-swing driving mechanism (22) through a fixed column (20), and triangular support plates (21) are connected between the fixed column (20) and the fixed plate (19) and between the fixed column and the anti-swing driving mechanism (22).

6. Hoisting mechanism for a maintenance tower crane according to claim 5, characterized in that the bottom of the anti-swing driving mechanism (22) is connected with a hoisting wire cable (23), and the bottom of the hoisting wire cable (23) is provided with a hoisting hook (24).

7. Hoisting mechanism for a maintenance tower crane according to claim 6, characterized in that, the anti-swing driving mechanism (22) comprises an outer box body (25), a guiding opening (26) is formed in the bottom of the outer box body (25), a driving motor (27) is arranged on one side of the outer wall of the outer box body (25), an output end of the driving motor (27) is connected with a linkage shaft (28), a hoisting wheel (29) is mounted on the linkage shaft (28), and the hoisting steel wire cable (23) is wound on the hoisting wheel (29).

8. Hoisting mechanism for maintaining a tower crane according to claim 7, characterized in that, the lower part of the hoisting wheel (29) in the outer box (25) is symmetrically provided with an anti-deflection roller (31), the anti-deflection roller (31) is provided with a mounting bracket (30) through a connecting rotating shaft, and the mounting bracket (30) is fixed in the outer box (25).