Overturning and hoisting device for large parts

Abstract

The utility model relates to a large part overturning and hoisting device, and belongs to the technical field of large part hoisting in the metallurgical industry. According to the technical scheme, the lifting device comprises a left box body (1), a right box body (2), a pin shaft (3) and a sleeve (5), lifting holes (102) are formed in the left box body (1) and the right box body (2) respectively, the left box body (1) and the right box body (2) are connected together through the pin shaft (3), the sleeve (5) is arranged on the pin shaft (3) in a sleeving mode, a plurality of semicircular notches (501) are formed in the outer surface of the sleeve (5) in the circumferential direction, a plurality of oil guide grooves (503) are formed in the inner wall of the sleeve (5) in the axial direction, and the oil guide grooves (503) are communicated with the semicircular notches (501). And an internal thread through hole (502) communicated with the oil guide groove (503) is formed in the radial direction of the sleeve (5). The hoisting device has the beneficial effects that the abrasion of the steel wire rope caused by relative sliding friction between the hoisting device and the steel wire rope in the part hoisting process can be effectively reduced, the shaking and impact effects in the hoisting and overturning process are avoided, and the hoisting stability is ensured.

Description

Technical Field

[0001] This utility model relates to a large component tilting and hoisting device, belonging to the field of large component hoisting technology in the metallurgical industry. Background Technology

[0002] During the processing, manufacturing, transportation, and installation of components, lifting and rotating operations are often involved, which involve hoisting components from a horizontal position to a vertical position or rotating them 180°. Some components, due to cost and installation space considerations, are not designed and manufactured with lifting lugs, such as heavy-duty plate mill stands and straightener roll systems. Figure 9 As shown.

[0003] Large components are typically hoisted using wire ropes. However, due to their large size, heavy weight, lack of lifting lugs, and sharp edges, the friction and wear between the wire ropes and the components are significant, easily damaging the ropes. This can also cause momentary swaying and unstable hoisting, subjecting the load-bearing system to substantial impact loads, making hoisting difficult and posing significant safety hazards. Figure 10 As shown, therefore, a new technical solution is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a large component tilting and hoisting device that can effectively reduce the wear of the wire rope caused by relative sliding friction between the component and the wire rope during the hoisting process, avoid swaying and impact during the tilting and hoisting process, ensure hoisting stability, and solve the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] A large component tilting and hoisting device includes a left box, a right box, a pin, and a sleeve. The left and right boxes are respectively provided with hoisting holes and are connected together by the pin. The sleeve is fitted onto the pin between the left and right boxes. The outer surface of the sleeve is provided with multiple semi-circular grooves in the circumferential direction. The inner wall of the sleeve is provided with multiple oil guide grooves along the axial direction. The sleeve is provided with internal threaded through holes communicating with the oil guide grooves in the radial direction.

[0007] Both the left and right housings are provided with pin holes that match the pin shaft.

[0008] The right housing is equipped with a clamping plate that mates with the pin.

[0009] The pin has a rectangular slot that mates with the card plate.

[0010] The card plate is provided with a circular through hole, and the right box body is provided with an internal threaded hole that matches the circular through hole.

[0011] The card plate is a rectangular plate.

[0012] The beneficial effects of this invention are: the device can effectively reduce the wear of the wire rope caused by relative sliding friction between the hoisted parts and the wire rope during the rotation process, avoid swaying and impact during the rotation process, and ensure hoisting stability. It has advantages such as simple structure, small size, light weight, large load capacity, convenient operation, and safety and reliability. This invention can be used in single or multiple sets, effectively solving the problem of safe and stable rotation and hoisting of large parts. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the left box structure;

[0015] Figure 3 This is a structural diagram of the right-side box.

[0016] Figure 4 This is a schematic diagram of the pin structure;

[0017] Figure 5 This is a schematic diagram of the card plate structure;

[0018] Figure 6 This is a schematic diagram of the sleeve structure;

[0019] Figure 7 This is a schematic diagram of the application structure of this utility model;

[0020] Figure 8 This is a schematic diagram illustrating the application of this utility model in the tilting and hoisting of large components.

[0021] Figure 9 This is a schematic diagram of the structure of a rolling mill archway in the background art;

[0022] Figure 10 This is a schematic diagram of the structure for the tilting and hoisting of large components in the background technology;

[0023] In the diagram: 01-Rolling mill stand; 02-1# wire rope; 03-2# wire rope; 04-Clamping ring;

[0024] 1-Left housing, 101-Pin hole, 102-Circular lifting hole; 2-Right housing, 201-Internal threaded hole; 3-Pin, 301-Rectangular groove; 4-Clamping plate, 401-Circular through hole; 5-Sleeve, 501-Semi-circular groove, 502-Internal threaded through hole, 503-Oil guide groove. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] See attached document Figure 1-3 A large component flipping and hoisting device includes a left box 1, a right box 2, a pin 3, and a sleeve 5. The left box 1 and the right box 2 are respectively provided with hoisting holes 102. The left box 1 and the right box 2 are connected together by the pin 3. The sleeve 5 is sleeved on the pin 3 between the left box 1 and the right box 2. The outer surface of the sleeve 5 is provided with a plurality of semi-circular grooves 501 in the circumferential direction. The inner wall of the sleeve 5 is provided with a plurality of oil guide grooves 503 along the axial direction. The sleeve 5 is provided with an internal threaded through hole 502 in the radial direction that communicates with the oil guide grooves 503.

[0027] In this embodiment, refer to the appendix Figure 1-3 The device mainly includes a left housing 1, a right housing 2, a pin 3, a clamping plate 4, and a sleeve 5, wherein:

[0028] The left box 1 is a cubic structure welded from rectangular plates, with a pin hole 101 in the middle and a circular hoisting hole 102 at the top. The right box 2 also has an internal threaded hole 201 on its side. The rest of the structure is consistent with the left box 1.

[0029] The outer diameter of the pin 3 matches the pin hole 101 of the left housing 1, and a rectangular slot 301 is provided below it;

[0030] The card plate 4 is a rectangular plate with a circular through hole 401. The size and distribution of the circular through hole 401 match the internal thread hole 201 on the side of the right box 2.

[0031] Pin 3 engages with the pin holes of the left housing 1 and the right housing 2 and is positioned by constraint by clamping plate 4.

[0032] The sleeve 5 is a thick-walled cylinder with an inner diameter matching the outer diameter of the pin 3. Its outer circumference has a semi-circular groove 501 and an internally threaded through hole 502. Its inner circumference has an oil guide groove 503 connected to the groove, allowing for internal lubrication via the internally threaded through hole 502 using an oil injection device. The length of the sleeve 5 is consistent with the distance between the left housing 1 and the right housing 2. It is mounted on the pin 3 and constrained by the sides of the left housing 1 and the right housing 2.

[0033] The circular lifting holes of the left box 1 and the right box 2 can be connected to the No. 1 steel wire rope via a snap ring. The lifting components can be connected to the sleeve 5 via the No. 2 steel wire rope. The No. 2 steel wire rope can pass around the sleeve 5 and cooperate with its semi-circular groove 501. The No. 2 steel wire rope is constrained and positioned within the semi-circular groove 501 and can slowly rotate with the sleeve 5 according to the rotation of the lifting components and the change of the center of gravity, adaptively adjusting its position. This effectively reduces the relative sliding friction between the lifting components and the No. 2 steel wire rope during the flipping process, which leads to wear of the steel wire rope. It also avoids swaying and impact during the flipping process, ensuring lifting stability. At the same time, this utility model can be used in single or multiple sets to complete the safe and stable flipping and lifting operation of large components.

[0034] See Figure 7-8 As shown, when using this utility model in specific operation, a large component tilting and hoisting device is implemented according to the following detailed steps:

[0035] The No. 1 wire rope 02 is connected to the circular lifting holes on the left and right boxes by the snap ring 04. The No. 1 wire rope 02 is connected to the lifting equipment. In this operation, the present invention is used in two sets.

[0036] Use steel wire rope 03 to connect the archway 01 to this device. Steel wire rope 03 passes around sleeve 5 and engages with its semi-circular groove 501. Steel wire rope 03 is constrained within the semi-circular groove 501, and the contact points between steel wire rope 03 and the archway 01 are protected.

[0037] The lifting equipment is slowly raised, and the No. 2 steel wire rope 03 always remains in contact with the sleeve 5 of this utility model. It can also slowly rotate with the sleeve 5 according to the rotation of the archway 01 and the change of the center of gravity, and adaptively adjust its position, thereby realizing the safe and stable flipping and hoisting operation of large parts.

Claims

1. A large component tilting and hoisting device, characterized in that: It includes a left housing (1), a right housing (2), a pin (3) and a sleeve (5). The left housing (1) and the right housing (2) are respectively provided with lifting holes (102). The left housing (1) and the right housing (2) are connected together by the pin (3). The sleeve (5) is fitted on the pin (3) between the left housing (1) and the right housing (2). The outer surface of the sleeve (5) is provided with multiple semi-circular grooves (501) in the circumferential direction. The inner wall of the sleeve (5) is provided with multiple oil guide grooves (503) along the axial direction. The sleeve (5) is provided with an internal threaded through hole (502) in the radial direction that communicates with the oil guide grooves (503).

2. The large component tilting and hoisting device according to claim 1, characterized in that: Both the left housing (1) and the right housing (2) are provided with pin holes that match the pin shaft (3).

3. The large component tilting and hoisting device according to claim 2, characterized in that: The right box (2) is provided with a clamping plate (4) that cooperates with the pin (3).

4. A large component tilting and hoisting device according to claim 3, characterized in that: The pin (3) is provided with a rectangular slot (301) that cooperates with the card plate (4).

5. A large component tilting and hoisting device according to claim 4, characterized in that: The card plate (4) is provided with a circular through hole (401), and the right box (2) is provided with an internal thread hole (201) that matches the circular through hole (401).

6. A large component tilting and hoisting device according to claim 5, characterized in that: The card plate (4) is a rectangular plate.

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