Tower crane hook assembly tool

Abstract

The application discloses a tower crane hook assembly tool, which comprises a first assembly device, a second assembly device and a third assembly device, the second assembly device is arranged on the front side of the first assembly device, the third assembly device is arranged on the front side of the second assembly device, the first assembly device comprises an assembly frame, the second assembly device comprises a jacking mechanism, a platform, a placing rack and a turnover mechanism, the jacking mechanism is vertically arranged on the front side of the assembly frame, the platform is horizontally arranged on the top of the jacking mechanism, a placing groove is formed in the middle of the platform, and the jacking mechanism can drive the platform to ascend and descend, the turnover mechanism is arranged in the placing groove, the bottom of the placing rack is arranged on the top of the turnover mechanism, after the platform is lowered by the jacking mechanism, the turnover mechanism can drive the placing rack to turn over forward, and the hook assembly placed on the placing rack is sent into the third assembly device, and the application can save the assembly time of the hook assembly and improve the assembly efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of hoisting devices, and particularly relates to a tower crane hook assembly tool. BACKGROUND

[0002] A tower crane, also known as a tower crane, is a rotating crane with a movable arm mounted on the upper part of a high tower. It has a large working space and is mainly used for vertical and horizontal transportation of materials and installation of building components in building construction. It is composed of three parts: metal structure, working mechanism and electrical system. The metal structure includes the tower body, movable arm and base. The working mechanism has four parts: lifting, amplitude, rotation and walking. The electrical system includes motors, controllers, switchboards, connecting lines, signals and lighting devices, etc.

[0003] The hook is a common hoist for tower cranes. The hook is suspended on the tower crane wire rope with the help of pulley blocks and other components, and has the advantages of simple structure and convenient use.

[0004] A common tower crane hook assembly in the prior art is shown in Figure 1 The upper support 4 and the lower support 5 are provided with pulleys, the lower support 5 is provided with anti-collision frames 6 on both sides, and the hook head assembly 7 is arranged at the bottom of the lower support 5. This hook assembly has the advantages of high strength, high bearing capacity, not easy to damage and high safety performance. When assembling this kind of hook assembly, the pulleys need to be installed in the upper support 4 and the lower support 5 respectively, and then the upper support 4 and the lower support 5 are connected together.

[0005] When assembling, since this kind of hook assembly is commonly used in large tower cranes, it is too time-consuming and laborious to assemble only by manpower, so in the prior art, the lower support is usually lifted by hoisting equipment and placed vertically, and then the upper support 4 is lifted to the upper side of the lower support 5, the installation position of the upper support 4 is aligned with the installation position of the lower support 5, the upper support 4 is inserted into the lower support 5, and then connected. This assembly method needs to lift two supports respectively, and the working efficiency is low. SUMMARY

[0006] The purpose of the present application is to provide a tower crane hook assembly tool, which can solve the technical problems of time-consuming and laborious assembly of the hook assembly in the prior art, low working efficiency, without the need to lift two supports respectively, saving assembly time and improving assembly efficiency.

[0007] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0008] The utility model provides a tower crane hook assembly tool, including first assembly device, second assembly device, third assembly device, second assembly device is located first assembly device front side, third assembly device is located second assembly device front side bottom, first assembly device includes assembly frame, second assembly device includes jacking mechanism, platform, placing rack, turnover mechanism, jacking mechanism is located assembly frame front side vertically, platform is located jacking mechanism top horizontally, and the middle part is equipped with placing groove, and jacking mechanism can drive platform to go up and down, turnover mechanism is located in placing groove, placing rack bottom front end is located in turnover mechanism top, after jacking mechanism drives platform to go down, turnover mechanism can drive placing rack to turn over to the front, and the hook assembly on placing rack is sent into third assembly device.

[0009] Further, the jacking mechanism is a hydraulic jacking machine.

[0010] Further, the turnover mechanism includes a mounting assembly and a connecting assembly, the mounting assembly is provided with two, and is respectively arranged in the left and right sides of the placing groove of the platform, the mounting assembly includes a mounting seat, a rack, a cylinder and a push block, the mounting seat is arranged along the front and back horizontal direction, the bottom surface of the mounting seat is provided with a mounting groove, and the top surface of the mounting seat is provided with a horizontal sliding groove in communication with the mounting groove, the rack is arranged on the top surface of the mounting seat along the front and back horizontal direction, the cylinder is horizontally arranged in the mounting groove of the bottom surface of the mounting seat, and the piston rod of the cylinder faces the back side, the push block is arranged on the output end of the cylinder, and the top surface of the push block penetrates through the sliding groove and is connected with the bottom surface of the rack in an upward manner, when the piston rod of the cylinder is elongated or shortened, the push block drives the rack to move back and forth on the top surface of the mounting seat.

[0011] The connecting assembly includes a connecting block, a rotating shaft, a shaft seat and a gear, the top surface of the connecting block is fixedly connected with the bottom surface of the front end of the placing rack, the rotating shaft penetrates through the connecting block along the left and right horizontal direction and is fixedly connected with the connecting block, the two ends of the rotating shaft extend out of the left and right sides of the placing rack, the shaft seat is arranged on the left and right sides of the rotating shaft, and the bottom surface of the shaft seat is fixedly connected with the top surface of the placing groove, and the gear is fixedly sleeved on the left and right ends of the rotating shaft and is engaged with the rack.

[0012] Further, the gear is a half gear.

[0013] Further, the utility model also includes a blocking block, the blocking block is arranged on the rear end of the top surface of the mounting seat.

[0014] Further, the utility model also includes a base, the base is fixedly arranged in the rear side of the placing groove along the left and right horizontal direction, when the placing rack is in the horizontal state, the bottom surface of the rear end of the placing rack is arranged on the top surface of the base.

[0015] Further, the utility model also includes a limiting block, the limiting block is fixedly arranged on the top surface of the front end of the placing rack.

[0016] Further, the third assembly device comprises a support frame; the support frame is horizontally arranged at the bottom of the front end of the second assembly device.

[0017] Further, the top surface of the left and right sides of the support frame is provided with a fixing groove in the front-rear direction.

[0018] Further, a limiting rod is further included; the limiting rod is vertically arranged at the left and right ends of the support frame.

[0019] The beneficial effects of the present application compared with the prior art are:

[0020] 1. The present application can realize the quick, convenient and safe assembly of the upper bracket and the lower bracket of the hook, without the need to separately hoist two brackets, thereby improving the assembly quality and efficiency of the hook assembly and reducing the assembly cost and risk.

[0021] 2. The first assembly device of the present application can provide a stable horizontal placement platform for the upper bracket of the hook, facilitating the installation and adjustment of the pulley; the second assembly device can provide a liftable and overturnable placement platform for the lower bracket of the hook, facilitating the installation and adjustment of the pulley and the docking with the third assembly device; the third assembly device can provide a fixable and alignable combination platform for the upper bracket and the lower bracket of the hook, facilitating the connection and fixation thereof; the jacking mechanism can adjust the height of the second assembly device according to the need, so that it maintains an appropriate distance and angle with the third assembly device; the overturning mechanism can realize the 90-degree overturning of the second assembly device and limit the overturning angle, so that the lower bracket of the hook can be changed from the horizontal state to the vertical state and smoothly sent into the third assembly device; the support frame can enable the lower bracket of the hook to be smoothly overturned and vertically placed, and prevent it from toppling over through the limiting rod. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the prior art hook assembly;

[0023] Figure 2 is a structural schematic diagram of a tower crane hook assembly tool of the present application;

[0024] Figure 3 is a connection structure schematic diagram of the placement frame and the overturning mechanism of the present application;

[0025] Figure 4 is a structural schematic diagram of the overturning mechanism of the present application;

[0026] Figure 5 is a side view of the overturning mechanism of the present application;

[0027] Figure 6 is an assembly schematic diagram of the tower crane hook assembly tool of the present application and the upper bracket and the lower bracket of the hook;

[0028] Figure 7 This is a schematic diagram of the assembly of the third assembly device and the lower support of the present invention;

[0029] In the attached drawings, 1-first assembly device; 11-assembly frame;

[0030] 2-Second assembly device; 21-Lifting mechanism; 22-Platform; 23-Placement slot; 24-Placement rack;

[0031] 25 - Tilting mechanism;

[0032] 251-Mounting component; 2511-Mounting base; 2512-Mounting slot; 2513-Rack; 2514-Cylinder; 2515-Push block; 2516-Blocking block;

[0033] 252-Connecting assembly; 2521-Connecting block; 2522-Shaft; 2523-Shaft seat; 2524-Gear;

[0034] 26-Base; 27-Limiting block;

[0035] 3-Third assembly device; 31-Support frame; 32-Fixing groove; 33-Limiting rod;

[0036] 4-Upper bracket; 5-Lower bracket; 6-Bumper guard; 7-Hook assembly. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the present invention, and these aspects of the invention can be implemented even without these specific details.

[0038] like Figures 2-5 As shown, a tower crane hook assembly fixture includes a first assembly device 1, a second assembly device 2, and a third assembly device 3. The second assembly device 2 is located in front of the first assembly device 1. The third assembly device 3 is located at the bottom of the front side of the second assembly device 2. The first assembly device 1 includes an assembly frame 11. The second assembly device 2 includes a lifting mechanism 21, a platform 22, a placement frame 24, and a tilting mechanism 25. The lifting mechanism 21 is vertically located in front of the assembly frame 11. The platform 22 is horizontally located on top of the lifting mechanism 21, with a placement groove 23 in its middle. The lifting mechanism 21 can drive the platform 22 to rise and fall. The tilting mechanism 25 is located in the placement groove 23. The bottom front end of the placement frame 24 is located on top of the tilting mechanism 25. After the lifting mechanism 21 drives the platform 22 to fall, the tilting mechanism 25 can drive the placement frame 24 to tilt forward, sending the hook assembly placed on the placement frame 24 into the third assembly device 3.

[0039] The jacking mechanism 21 is a hydraulic jacking machine, and the hydraulic jacking machine is connected with a control system.

[0040] The overturning mechanism 25 comprises mounting assemblies 251 and a connecting assembly 252; the mounting assemblies 251 are arranged on the left and right sides in the placing grooves 23 of the platform 22; the mounting assembly 251 comprises a mounting base 2511, a rack 2513, a cylinder 2514 and a push block 2515; the mounting base 2511 is arranged on the left and right sides in the placing grooves 23 along the front-rear horizontal direction, and the bottom surface of the mounting base 2511 is provided with a mounting groove 2512, and the top surface of the mounting base 2511 is provided with a sliding groove which is communicated with the mounting groove 2512 and is arranged along the front-rear horizontal direction; the rack 2513 is arranged on the top surface of the mounting base 2511 along the front-rear horizontal direction; the cylinder 2514 is horizontally arranged in the mounting groove 2512 of the bottom surface of the mounting base 2511, and the piston rod of the cylinder 2514 is directed to the rear side, and the cylinder 2514 is connected with a control system; the push block 2515 is arranged on the output end of the cylinder 2514, and the top surface of the push block 2515 is connected with the bottom surface of the rack 2513 through the sliding groove in a penetrating mode, and when the piston rod of the cylinder 2514 is elongated or shortened, the push block 2515 drives the rack 2513 to move forward and backward on the top surface of the mounting base 2511.

[0041] The connecting assembly 252 comprises a connecting block 2521, a rotating shaft 2522, a shaft base 2523 and a gear 2524; the top surface of the connecting block 2521 is fixedly connected with the bottom surface of the front end of the placing rack 24; the rotating shaft 2522 penetrates through the connecting block 2521 along the left-right horizontal direction and is fixedly connected with the connecting block 2521, and the two ends of the rotating shaft 2522 extend out of the left and right sides of the placing rack 24; the shaft base 2523 is arranged on the left and right sides of the rotating shaft 2522, and the bottom surface of the shaft base 2523 is fixedly connected with the top surface of the placing groove 23; the gear 2524 is fixedly sleeved on the left and right ends of the rotating shaft 2522 and is engaged with the rack 2513, and when the piston rod of the cylinder 2514 is elongated or shortened, the push block 2515 drives the rack 2513 to move forward and backward, the rack 2513 is engaged with the gear 2524, the gear 2524 is driven to rotate, the rotating shaft 2522 is driven to rotate, the connecting block 2521 and the placing rack 24 are driven to rotate based on the rotating shaft 2522, and the placing rack 24 is overturned.

[0042] In another embodiment, the gear 2524 is a half gear, the placing rack 24 can be overturned within an angle of 0-90°, and a blocking block 2516 is arranged on the top surface of the rear end of the rack 2513, so as to prevent the piston rod of the cylinder 2514 from being elongated too much, to prevent the rack 2513 from moving backward by a distance exceeding the center line of the half gear, and to prevent the rack 2513 from being unable to be re-engaged with the gear 2524.

[0043] It also includes a base 26; the base 26 is located on the rear side of the placement groove 23 in a horizontal direction. When the placement rack 24 is in a horizontal state, the bottom surface of the rear end of the placement rack 24 is placed on the top surface of the base 26, so that the placement rack 24 remains horizontal.

[0044] It also includes a limiting block 27; the limiting block 27 is located on both sides of the top front surface of the placement frame 24, and the limiting block 27 is used to block the lower support 5 to prevent the lower support 5 from slipping during the flipping process.

[0045] The third assembly device 3 includes a support frame 31; the support frame 31 is horizontally disposed at the bottom front end of the second assembly device 2, and the support frame 31 is used to place the lower support 5 in a vertical state after being flipped over.

[0046] The support frame 31 has a fixing groove 32 on the top surface of the left and right sides along the front and back direction. The fixing groove 32 is used to place the anti-collision frame 6 of the lower support 5.

[0047] It also includes a limiting rod 33; the limiting rod 33 is vertically installed at both ends of the support frame 31, and the limiting rod 33 is used to block the lower support 5 and prevent the lower support 5 from tilting forward.

[0048] The working principle of this invention is as follows:

[0049] like Figures 6-7 As shown, firstly, the upper bracket 4 of the hook assembly is placed horizontally on the assembly frame 11 of the first assembly device 1, and the lower bracket 5 is placed horizontally on the placement frame 24 of the second assembly device 2, with the limiting block 27 positioned inside the anti-collision frame, simultaneously blocking the bottom of the lower bracket 5. The pulleys inside the upper bracket 4 and lower bracket 5 are then installed on the assembly frame 11 and the placement frame 24.

[0050] After installing the pulleys, activate the lifting mechanism 21 to lower the platform 22 to the appropriate position. Activate the cylinder 2514 of the tilting mechanism 25, causing the piston rod of cylinder 2514 to extend backward, moving the rack 2513 backward. During this movement, the rack 2513 engages with the gear 2524, causing the gear 2524 to rotate. The gear 2524 then rotates the rotating rod, causing the connecting block 2521 and the placement frame 24 to rotate forward based on the rotating rod, thus tilting the placement frame 24. Since the anti-collision frame 6 and the lower support 5 are perpendicular to each other, during the tilting process of the placement frame 24, the anti-collision frame 6 will first contact the fixing groove 32 of the support frame 31 of the third assembly device 3. In the subsequent tilting process, the lower support 5 will rotate based on the contact point between the anti-collision frame 6 and the fixing groove 32, thereby tilting the lower support 5 from a horizontal state to a vertical state and fixing it within the fixing groove 32.

[0051] The upper support 4 on the assembling frame 11 is hoisted to above the vertically placed lower support 5 by the hoisting device, and after being aligned and installed in position, the upper support 4 is inserted into the lower support 5 to connect the upper support 4 and the lower support 5 to each other, and then the hook head assembly 7 is connected to the bottom of the lower support 5, so that the assembly of the lifting hook is completed.

[0052] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A tower crane hook assembly tool, characterized by: The utility model provides a kind of assembly device, including first assembly device, second assembly device, third assembly device;The second assembly device is equipped in first assembly device front side;The third assembly device is equipped in second assembly device front side bottom;The first assembly device includes assembly frame;The second assembly device includes jacking mechanism, platform, placing rack, turnover mechanism;The jacking mechanism is vertically equipped in assembly frame front side;The platform is horizontally equipped in jacking mechanism top, and its middle part is provided with placing slot, and jacking mechanism can drive platform to lift;The turnover mechanism is equipped in placing slot;The third assembly device includes support frame;The support frame is horizontally equipped in second assembly device front end bottom;The support frame left and right sides top surface is provided with fixed slot along front-back direction;The placing rack bottom front end is equipped in turnover mechanism top, and it is used to place the lower support and anti-collision frame of hook assembly, after jacking mechanism drives platform to descend, turnover mechanism can drive placing rack to turn over forward, during the turning over of placing rack, anti-collision frame will first contact the fixed slot of support frame, and in subsequent turning over process, lower support will rotate based on the contact point of anti-collision frame and fixed slot, so that lower support turns over from horizontal state to vertical state, and is fixed in fixed slot.

2. The tower crane hook assembly tooling of claim 1, wherein: The jacking mechanism is a hydraulic jacking machine.

3. The tower crane hook assembly tooling system of claim 1, wherein: The turnover mechanism includes mounting assembly and connecting assembly;The mounting assembly is equipped with two, and is equipped in the left and right sides of the placing slot of platform respectively;The mounting assembly includes mounting seat, rack, cylinder, push block;The mounting seat is arranged along the front-back horizontal direction, and the bottom surface is provided with mounting slot, and the top surface is provided with horizontal slide connected with mounting slot;The rack is arranged along the front-back horizontal direction on the top surface of mounting seat;The cylinder is horizontally arranged in the mounting slot of mounting seat bottom surface, and the piston rod faces the rear side;The push block is arranged on the output end of cylinder, and the top surface passes through the slide and is connected with the bottom surface of rack upward, when the piston rod of cylinder extends or shortens, the push block drives the rack to move forward and backward on the top surface of mounting seat; The connecting assembly includes connecting block, shaft, shaft seat and gear, the top surface of connecting block is fixedly connected with the bottom surface of the front end of placing rack, the shaft passes through the connecting block along the horizontal direction and is fixedly connected with the connecting block, and the two ends of the shaft extend out of the left and right sides of placing rack, the shaft seat is arranged on the left and right sides of shaft, and the bottom surface is fixedly connected with the top surface of placing slot, and the gear is fixedly sleeved on the left and right ends of shaft and is engaged with the rack.

4. The tower crane hook assembly tooling system of claim 3, wherein: The gear is a half gear.

5. The tower crane hook assembly tooling system of claim 4, wherein: The utility model also includes a blocking block, and the blocking block is arranged on the rear end of the top surface of mounting seat.

6. The tower crane hook assembly tooling system of claim 3, wherein: The utility model also includes a base, and the base is fixedly arranged in the rear side of placing slot along the horizontal direction, and when the placing rack is in horizontal state, the bottom surface of rear end of placing rack is arranged on the top surface of base.

7. The tower crane hook assembly tooling system of claim 3, wherein: The utility model also includes a limiting block, and the limiting block is fixedly arranged on the top surface of front end of placing rack.

8. The tower crane hook assembly tooling system of claim 1, wherein: The utility model also includes a limiting rod, and the limiting rod is vertically arranged on the left and right ends of support frame.

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