CN204624957U - A kind of hoisting fixture - Google Patents

Abstract

The utility model discloses a hoisting tool. The tooling structure is used as an intermediate transition piece for the middle piece in the hoisting process of heavy objects such as the frame of a grader. The lifting force of the heavy object can be transmitted to different shackle plates through a beam. In this way, it can not only reduce the lifting requirements for a single crane, but also help reduce the dependence on the lifting capacity of the workshop crane; by adjusting the position of the shackle plate, it can meet the hoisting of heavy objects of different shapes or volumes; the hoisting provided In the tooling, it is convenient to obtain multiple lifting points on the heavy object, which is beneficial to eliminate or reduce the possibility of dangerous situations such as the heavy object rolling over that may be caused by the center of gravity not being on the lifting line during the lifting process, so as to facilitate the stable hoisting sex.

Description

a hoisting tool

technical field

The utility model relates to the field of machining equipment, in particular to a hoisting tool.

Background technique

The strip steel after recrystallization annealing and galvanizing often needs to be leveled, so that the strip steel can obtain the necessary performance and surface quality, and meet the requirements of the subsequent processing. The skin tempering machine plays an irreplaceable role in the above process. The total weight of the tempering mill equipment in the prior art is about 253.65 tons, which is disassembled by the manufacturer and shipped to the construction or installation site. Among them, the largest single part of the above tempering machine is the frame (archway), the weight of the frame (archway) is about 60 tons, and its overall size is 3.43m long * 0.925m wide * 6.71m high. The installation position of the frame (archway) is generally set on the longitudinal axis 3-4 to 3-5 axis of the main rolling span of the workshop, and the horizontal axis is between the 3-K to 3-L axis.

Due to the limitation of the workshop area and height, the car leveling machine cannot use the car hoisting equipment, but can only use the crane installed in the workshop, and the maximum lifting capacity of the crane hoisting equipment installed in the workshop in the current field generally cannot meet the requirements of the frame. Lifting requirements, that is, a single crane cannot meet the installation requirements of the equipment. At the same time, the lifting height of the crane in the workshop in this field is about 10 meters, while the height of the above frame reaches 6.71 meters. The lifting height is too low, which further aggravates the machine. The difficulty of the hoisting process of the frame (archway).

Utility model content

For the frame of the skin pass machine in the above-mentioned prior art, the existing single crane cannot meet the installation requirements of the equipment. At the same time, the lifting height of the crane in the workshop in this field is about 10 meters, and the height of the above frame reaches 6.71 meters. The lifting height is too low, which further exacerbates the difficulty of the hoisting process of the frame (archway). The utility model provides a hoisting tool.

In view of the above problems, the utility model provides a hoisting tool to solve the problem through the following technical points: a hoisting tool, including a beam, lifting lugs and a shackle plate, the number of lifting lugs is two, and the two lifting lugs are respectively fixed At different ends of the beam, the lifting lug is a plate structure provided with a hook hole, and the lower end of the lifting lug is fixed on the beam, and the hook hole is located at the upper end of the lifting lug;

There are at least two shackle plates, and the shackle plate is a plate-shaped structure provided with an engaging groove and a shackle hole, the bottom surface and the side surface of the engaging groove are respectively welded and connected to the bottom surface and the side surface of the beam, and the shackle hole is located at the bottom of the engaging groove. Below, and the shackle plates are respectively fixed at different positions along the length direction of the beam.

Specifically, the hook holes provided on the above lugs are used to connect with the hooks of the crane, that is, this structure needs to use two cranes to complete the suspension of the beam, and the shackle holes on each shackle plate are used to pass through the sling, Connectors such as wire ropes or shackles are used to connect objects to be hoisted. The above structure is used as an intermediate transition piece for the hoisting process of heavy objects such as the frame of the grader. The lifting force of the heavy object can be transmitted to different shackle plates through the beam. In the case of a certain weight of the heavy object, Compared with the traditional hoisting method, this not only reduces the lifting requirements for a single crane, but also helps to reduce the dependence on the lifting capacity of the workshop crane; Multiple lifting points are obtained on the object, which is beneficial to eliminate or reduce the possibility of dangerous situations such as the heavy object rolling over which may be caused by the center of gravity not being on the lifting line during the lifting process, so as to facilitate the stability of the hoisting. The above characteristics of stability make it possible for the trolley and cart to move along their respective guide rails even when the shape of the heavy object is complex, the center of gravity is difficult to judge, the lifting point is not easy to select, and the height of the heavy object is too high relative to the lifting height. Direct lifting with small component force.

As a structural form in which the beam has good flexural modulus under the same weight or material consumption, the beam is in the shape of a hollow rectangular beam. At the same time, the above structure facilitates the manufacture of crossbeams with suitable strength or volume through steel plates, channel steels, angle steels and other materials according to actual requirements after mechanical calculations.

Since the bending moment on the beam during the working process of the utility model will inevitably cause the center of the beam to bend downward toward both ends, so that the interaction force between the driving hook and the lifting lug, the unloading The interaction force between the buckle plate and the connecting parts such as the sling, wire rope or shackle does not necessarily exist along the direction of the lifting lug or the shackle plate. The above interaction force will inevitably lead to the bending of the lifting lug and the shackle plate , which is not conducive to the stability of the hoisting operation, but also not conducive to the force of the lifting lug and the shackle plate. The position where the force is the worst is especially at the connection point between the lifting lug and the shackle plate. The degree to which the lifting lug and the shackle plate are bent by the bending moment caused by the bending of the beam, the first reinforcing rib is arranged between the lifting lug and the beam, and the projection of the first reinforcing rib on the beam is located at the length of the beam direction, and the connection point between the first reinforcement rib and the lifting lug is located at the upper end of the lifting lug; further, a second reinforcement rib is also provided between the shackle plate and the beam, and the projection of the second reinforcement rib on the beam It is located in the length direction of the beam, and the connection point between the second reinforcing rib and the shackle plate is located at the lower end of the shackle plate.

As a structural form especially suitable for lifting symmetrically shaped heavy objects, in order to balance the uniformity of the force on the two cranes during the working process, which is beneficial to the calculation of the driving capacity or the selection of the crane, there are two shackle plates, and the shackle holes and the hook hole are respectively located in the center of the shackle plate and the lifting lug, and the two shackle plates are symmetrical to the cross-section of the midpoint of the cross beam.

The utility model also provides a method of using the above-mentioned hoisting tool: a hoisting method, which adopts the hoisting tool described in any one of the above claims to realize the installation and hoisting of the tempering machine frame in the factory building, including the sequence Perform the following steps:

1) Transfer the skin pass machine frame to the factory building through the transportation equipment;

2) Brake the two cranes to the top of the frame of the skin pass mill, and at the same time fasten the hooks of the two cranes into different hook holes of the hoisting tooling, and pass through the shackle holes of each shackle plate provide a shackle;

3) Determine the lifting point on the leveler frame according to the shackle plate, or set the position of the shackle plate on the beam through the lifting point set on the leveler frame, and connect the leveler machine through the wire rope The frame is connected with each shackle, and an arc-shaped protective piece is set between each lifting point and the wire rope on the lifting point;

4) Start the two cranes to make the hooks of the two move up and down and reciprocate at the same time until the frame of the grader is hoisted to the required installation position and height.

The above method is used to realize the hoisting of the frame of the tempering machine, which realizes the transfer of the frame of the tempering machine from the unloading point to the installation point in the workshop. In step 1), it is convenient to realize the transfer through the existing device. The transportation equipment It is possible to use a truck crane to transfer the tempering machine frame to the transport trolley with a lower table, so that the tempering machine frame can pass through the workshop entrance, and then tow the transport trolley to the installation point of the tempering machine frame; in step 2) Complete the connection between the crane and the beam, the shackle plate and the lifting load-bearing connecting device in step 3), and complete the connection of the crane, hoisting tooling, and leveler frame in step 3). At the same time, in this step, the arc-shaped protective parts can It is a part of the arc-shaped tile or the inner ring of the discarded cylindrical roller bearing, so as to avoid the damage of the steel wire rope caused by the corners of the lifting point and affect the installation of the hoisting. In step 4), the hoisting of the frame of the leveler is completed by braking and driving. .

Further, in the above hoisting method, according to the actual selected hoisting point or the height limitation of the hoisting space, the shackle plate and the frame of the tempering machine may also be directly connected through at least one shackle.

The utility model has the following beneficial effects:

1. In the utility model, a hoisting tool and a hoisting method using the tool to complete the hoisting and transfer of heavy objects are provided. The method depends on the tool. The middle piece in the hoisting process, the lifting force of the heavy object can be transmitted to different shackle plates through the beam. In the case of a certain weight of the heavy object, compared with the traditional hoisting method, this not only reduces the impact on a single driving The lifting requirements are conducive to reducing the dependence on the lifting capacity of the workshop.

2. In the hoisting tooling provided, at least two shackle plates set on the beam can be used to obtain multiple lifting points on the heavy object, which is beneficial to prevent or reduce the center of gravity of the heavy object when it is not on the lifting line during the lifting process. The possibility of dangerous situations such as heavy objects rolling over may occur, so as to facilitate the stability of hoisting. The above characteristics of stability make it possible for the trolley and cart to move along their respective guide rails even when the shape of the heavy object is complex, the center of gravity is difficult to judge, the lifting point is not easy to select, and the height of the heavy object is too high relative to the lifting height. Direct lifting with small component force.

Description of drawings

Fig. 1 is a structural schematic diagram of a specific embodiment of a hoisting tool described in the utility model;

Fig. 2 is a structural front view of a shackle plate in a specific embodiment of a hoisting tool described in the present invention;

Fig. 3 is a side view of the structure of the shackle plate in a specific embodiment of the hoisting tool described in the present invention.

The numbers in the figure are: 1. Hook hole, 2. Lifting lug, 3. First rib, 4. Beam, 5. Shackle plate, 51. Engagement groove, 52. Second rib, 53. Shackle hole.

Detailed ways

The utility model will be further described in detail below in conjunction with the examples, but the structure of the utility model is not limited to the following examples.

Example 1:

As shown in Fig. 1 to Fig. 3, a kind of hoisting tooling comprises crossbeam 4, lifting lug 2 and shackle plate 5, and described lifting lug 2 is two, and two lifting lugs 2 are fixed on the different ends of crossbeam 4 respectively, described The lifting lug 2 is a plate structure provided with a hook hole 1, and the lower end of the lifting lug 2 is fixed on the beam 4, and the hook hole 1 is located at the upper end of the lifting lug 2;

The shackle plate 5 is at least two, and the shackle plate 5 is a plate structure provided with an engagement groove 51 and a shackle hole 53. The bottom surface and the side surface of the engagement groove 51 are welded to the bottom surface and the side surface of the beam 4 respectively, The buckle holes 53 are located below the engaging grooves 51 , and the shackle plates 5 are respectively fixed at different positions along the length direction of the beam 4 .

In this embodiment, the hook holes 1 respectively provided on the above lifting lugs 2 are used to connect with the hooks of the crane. Holes 53 are used to connect objects to be hoisted by connecting pieces such as slings, wire ropes or shackles. The above structure is used as an intermediate transition piece for the middle piece in the hoisting process of heavy objects such as the frame of the grader. The lifting force of the heavy object can be transmitted to different shackle plates 5 through the beam 4. In the case of a certain weight of the heavy object Compared with the traditional hoisting method, this not only reduces the lifting requirements for a single crane, but also helps reduce the dependence on the lifting capacity of the workshop crane; at the same time, through at least two shackle plates 5 set on the beam 4 , It is convenient to obtain multiple lifting points on the heavy object, which is beneficial to eliminate or reduce the possibility of dangerous situations such as the heavy object rolling over that may be caused by the center of gravity not being on the lifting line during the lifting process, so as to facilitate the stability of the hoisting. The above characteristics of stability make it possible for the trolley and cart to move along their respective guide rails even when the shape of the heavy object is complex, the center of gravity is difficult to judge, the lifting point is not easy to select, and the height of the heavy object is too high relative to the lifting height. Direct lifting with small component force.

Example 2:

This embodiment further limits this solution on the basis of Example 1: as shown in Figures 1 to 3, as a structural form in which the crossbeam 4 has a good flexural modulus under the same weight or material consumption, the crossbeam 4 is a hollow rectangular beam shape. At the same time, the above structure facilitates the manufacture of crossbeams 4 with suitable strength or volume through steel plates, channel steels, angle steels and other materials according to actual requirements after mechanical calculations.

Since the bending moment on the crossbeam 4 during the working process of the utility model will inevitably cause the center of the crossbeam 4 to be concavely bent toward both ends, so that the interaction between the driving hook and the lifting lug 2 will be reduced under ideal operating conditions. Force, the interaction force between the shackle plate 5 and the connecting parts such as slings, wire ropes or shackles does not necessarily exist in the direction along the lifting lug 2 or the shackle plate 5, the above interaction force will inevitably lead to the lifting lug 2 and The shackle plate 5 is bent by the bending moment, which is not only not conducive to the stability of the hoisting operation, but also unfavorable for the stress on the lifting lug 2 and the shackle plate 5. The position of the connection point of the plate 5, so in order to reduce the degree of bending of the lifting lug 2 and the shackle plate 5 due to the bending moment caused by the bending of the beam 4, a first reinforcement is provided between the lifting lug 2 and the beam 4 Rib 3, the projection of the first reinforcing rib 3 on the beam 4 is located in the length direction of the beam 4, and the connection point between the first reinforcing rib 3 and the lifting lug 2 is located at the upper end of the lifting lug 2; further, the shackle A second rib 52 is also arranged between the plate 5 and the beam 4, the projection of the second rib 52 on the beam 4 is located in the length direction of the beam 4, and the connection point between the second rib 52 and the shackle plate 5 Located at the lower end of the shackle plate 5.

As a structural form that is particularly suitable for lifting heavy objects with symmetrical shapes, in order to balance the uniformity of the force on the two cranes during the work process, which is beneficial to the calculation of the driving capacity or the selection of the crane, there are two shackle plates 5, and the shackle The hole 53 and the hook hole 1 are located at the center of the shackle plate 5 and the lifting lug 2 respectively, and the two shackle plates 5 are symmetrical to the cross-section of the midpoint of the cross beam 4 .

Simultaneously, the present embodiment provides the hoisting tooling for a concrete leveling machine base, and this base weighs 60 tons, and the crossbeam 4 of hoisting tooling is the rectangular cylindrical structure that adopts four pieces of 20# steel splicing with a thickness of 20mm, The cylindrical structure has a length of 10.5m, a height of 0.7m, and a width of 0.3m. The lifting lug 2 and the shackle plate 5 are 20# steel plates with a thickness of 40mm, and the diameter of the shackle hole 53 is not less than 50mm. Thread a steel wire rope with a diameter of 50mm or a shackle with a load capacity of 50 tons. The height of the lifting lug 2 is 1.1m, and the width of the lifting lug 2 is equivalent to the width of the beam 4. At the same time, the bottom of the lifting lug 2 and the bottom of the beam 4 Flush, connect and fix lifting lug 2 and crossbeam 4 by welding, the width of engagement groove 51 is suitable with the width of crossbeam 4, the depth of engagement groove 51 is not less than 30cm, and the parameter of driving is 45/5 tons.

Example 3:

This embodiment provides a method of adopting the structure provided by any one of the schemes in Embodiment 1 or Embodiment 2 to realize the transfer of the frame of the grader from the unloading point to the installation point in the workshop: a hoisting method, The method adopts any one of the lifting fixtures described above to realize the installation and lifting of the tempering machine frame in the factory building, including the following steps carried out in sequence:

1) Transfer the skin pass machine frame to the factory building through the transportation equipment;

2) Brake the two cranes to the top of the tempering machine frame, and at the same time fasten the hooks of the two cranes to the different hook holes 1 of the hoisting tooling, and each shackle hole 53 of the shackle plate 5 There is a shackle in each;

3) According to the shackle plate 5, determine the lifting point on the frame of the grader, or set the position of the shackle plate 5 on the beam 4 through the lifting point set on the frame of the grader, and use the wire rope to connect the leveler The frame of the whole machine is connected with each shackle, and an arc-shaped protective piece is set between each lifting point and the wire rope on the lifting point;

4) Start the two cranes to make the hooks of the two move up and down and reciprocate at the same time until the frame of the grader is hoisted to the required installation position and height.

The above method is used to realize the hoisting of the frame of the tempering machine, which realizes the transfer of the frame of the tempering machine from the unloading point to the installation point in the workshop. In step 1), it is convenient to realize the transfer through the existing device. The transportation equipment It is possible to use a truck crane to transfer the tempering machine frame to the transport trolley with a lower table, so that the tempering machine frame can pass through the workshop entrance, and then tow the transport trolley to the installation point of the tempering machine frame; in step 2) Complete the connection between the crane and the beam 4, the shackle plate 5 and the lifting load-bearing connector in step 3), and complete the connection of the crane, hoisting tooling, and leveler frame in step 3). At the same time, in this step, the arc protection set The part can be an arc-shaped tile or a part of the inner ring of the discarded cylindrical roller bearing, so as to avoid the damage of the steel wire rope caused by the edges and corners of the lifting point and affect the installation of the hoisting. In step 4), the hoisting of the frame of the leveler is completed by braking the driving in place.

As another solution for using the hoisting tool to hoist the grader frame into place, the shackle plate 5 and the grader frame may also be directly connected through at least one shackle.

As a specific implementation scheme of step 4), in this embodiment, the two cranes are hoisted at the same time. When the distance from the ground is about 50mm, check the brakes of the cranes. Two back and forth, once again confirming that the brakes are not slipping, the two cranes are hoisted to the installation height at the same time; at this time, the cranes are started at the same time, run to the top of the equipment installation foundation, and then the two cranes are started at the same time. Go directly above the installation point, then slowly descend to the top of the anchor bolts, brake the cart to fine-tune the position, and then slowly place the equipment on the equipment foundation.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be determined that the specific embodiments of the utility model are only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, other implementation modes obtained without departing from the technical solution of the utility model shall be included in the protection scope of the utility model.

Claims (5)

1. a hoisting fixture, it is characterized in that, comprise crossbeam (4), hanger (2) and unload buckle (5), described hanger (2) is two, two hangers (2) are individually fixed in the difference end of crossbeam (4), described hanger (2) is for being provided with the platy structure of hook hole (1), and the lower end of hanger (2) is fixed on crossbeam (4), and hook hole (1) is positioned at the upper end of hanger (2);

The described buckle (5) that unloads is at least two, unload buckle (5) for being provided with the platy structure of engaging groove (51) and shackle eye (53), the bottom surface of engaging groove (51) and side are welded to connect with the bottom surface of crossbeam (4) and side respectively, shackle eye (53) is positioned at the below of engaging groove (51), and unloads on diverse location that buckle (5) is separately fixed on crossbeam (4) length direction.

2. a kind of hoisting fixture according to claim 1, is characterized in that, the rectangle beam-like of described crossbeam (4) in hollow.

3. a kind of hoisting fixture according to claim 1, it is characterized in that, the first reinforced rib (3) is provided with between described hanger (2) and crossbeam (4), the projection of described first reinforced rib (3) on crossbeam (4) is positioned at the length direction of crossbeam (4), and the first reinforced rib (3) is positioned at the upper end of hanger (2) with the point of connection of hanger (2).

4. a kind of hoisting fixture according to claim 1, it is characterized in that, described unloading between buckle (5) and crossbeam (4) is also provided with the second reinforced rib (52), the projection of described second reinforced rib (52) on crossbeam (4) is positioned at the length direction of crossbeam (4), and the second reinforced rib (52) is positioned at the lower end of unloading buckle (5) with the point of connection unloading buckle (5).

5. a kind of hoisting fixture according to claim 1, it is characterized in that, the described buckle (5) that unloads is two, shackle eye (53) and hook hole (1) lay respectively at the central authorities of unloading buckle (5) and hanger (2), and two are unloaded buckle (5) relative to the cross-sectional plane symmetry crossing crossbeam (4) mid point.