Hoisting device for sleeve chimney

Abstract

The utility model discloses a hoisting device for a sleeve chimney, which relates to the field of chimney hoisting and comprises two groups of hoisting rope components mounted on hoisting equipment, the hoisting rope components are symmetrically arranged, each hoisting rope component comprises a long steel wire rope, an outer cylinder steel wire rope and an inner cylinder steel wire rope, one end of each outer cylinder steel wire rope is connected to an outer cylinder lifting lug of an outer cylinder, and the other end of each outer cylinder steel wire rope is connected to an inner cylinder lifting lug of an inner cylinder. One end of the inner cylinder steel wire rope is connected to an inner cylinder lifting lug of the inner cylinder, the other end of the inner cylinder steel wire rope is connected with the long steel wire rope, and the long steel wire rope is used for being connected to a lifting hook of lifting equipment. And the hoisting device can be suitable for chimneys with different calibers, can be repeatedly used, and has low requirements on transportation. And the transportation cost can be reduced while the light weight of the product is realized.

Description

Technical Field

[0001] This utility model relates to the field of chimney hoisting technology, specifically to a hoisting device for sleeve chimneys. Background Technology

[0002] A sleeve chimney is a new type of chimney where the outer sleeve provides structural strength and the inner sleeve provides corrosion protection. Because the inner sleeve is designed solely for corrosion resistance, its wall thickness is relatively thin, resulting in poor bending moment resistance. Therefore, it can only be hoisted together with the outer sleeve. Currently, there are two common hoisting methods: 1. Hoisting using a lifting crossbar: The lifting crossbar has multiple lifting points, allowing for the simultaneous hoisting of both the inner and outer sleeves. This method requires high strength from the lifting crossbar, often using larger steel sections, resulting in greater weight, higher transportation costs, and higher reuse costs; 2. Installing a limiting device on the outer sleeve: During hoisting, the crane only lifts the outer sleeve. As the outer sleeve rises, the limiting device on the inner wall of the outer sleeve contacts the limiting legs on the inner sleeve, lifting the inner sleeve and achieving simultaneous hoisting of both the inner and outer sleeves. This method requires the fabrication of limiting devices for each chimney section. For chimneys with a large distance between the inner and outer casings, the limiting devices and supporting legs need to be made larger to support the weight of the inner casing. Each supporting leg can weigh anywhere from tens to hundreds of kilograms. In conclusion, neither of the current two hoisting structures is suitable for hoisting sleeve chimneys. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a hoisting device for sleeve chimneys to solve the deficiencies of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: a hoisting device for a sleeve chimney, comprising a hoisting rope assembly installed on a hoisting device, wherein two sets of hoisting rope assemblies are symmetrically arranged, and the hoisting rope assembly includes a long steel wire rope, an outer cylinder steel wire rope and an inner cylinder steel wire rope. One end of the outer cylinder steel wire rope is connected to the outer cylinder lifting lug of the outer cylinder, and the other end is connected to the long steel wire rope. One end of the inner cylinder steel wire rope is connected to the inner cylinder lifting lug of the inner cylinder, and the other end is connected to the long steel wire rope. The long steel wire rope is used to connect to the hook of the hoisting device.

[0005] Furthermore, both ends of the long steel wire rope are connected to rings, and both ends of the outer cylinder steel wire rope and both ends of the inner cylinder steel wire rope are connected to elastic lifting rings.

[0006] Furthermore, the elastic lifting ring includes a lifting ring body and a movable body. The side of the lifting ring body is provided with a notch, and the movable body is disposed in the notch. One end of the movable body is hinged to the lifting ring body, and the other end contacts the lifting ring body to close the notch.

[0007] Furthermore, the lifting ring body has an installation groove at one end of the notch, a hinge shaft is fixed in the installation groove, and a through hole is opened at one end of the movable body, a torsion spring is installed in the through hole, and the torsion spring is fixedly fitted on the hinge shaft.

[0008] Furthermore, the movable body has a first wedge-shaped surface on the outer side of the end away from the hinge axis, and the lifting ring body has a second wedge-shaped surface on the inner side of the notch, with the first wedge-shaped surface and the second wedge-shaped surface engaging with each other.

[0009] Furthermore, two sets of limiting protrusions are fixed at both ends of the inner wall of the lifting ring body, and a steel wire rope limiting space is formed between the two sets of limiting protrusions.

[0010] The beneficial effects of this utility model are:

[0011] It enables simultaneous lifting of both inner and outer cylinders, is applicable to chimneys of different diameters, is reusable, and has low transportation requirements. It also reduces transportation costs while achieving product lightweighting. Attached Figure Description

[0012] Figure 1 This is a hoisting diagram of a hoisting device for a sleeve chimney according to the present invention;

[0013] Figure 2 This is a schematic diagram of the elastic lifting ring in a hoisting device for a sleeve chimney according to the present invention;

[0014] Figure 3 This is a diagram showing the usage state of the elastic lifting ring in the hoisting device for a sleeve chimney according to the present invention;

[0015] Figure 4 This is a schematic diagram illustrating the use of a hoisting device for a sleeve chimney according to the present invention;

[0016] In the diagram, 1-long steel wire rope, 2-outer cylinder steel wire rope, 3-inner cylinder steel wire rope, 4-inner cylinder lifting lug, 5-circular ring, 6-elastic lifting ring, 7-lifting ring body, 8-moving body, 9-hinged shaft, 10-first wedge surface, 11-second wedge surface, 12-limiting protrusion, 13-outer cylinder lifting lug, 14-inner cylinder flange, 15-outer cylinder flange. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 4As shown, a hoisting device for a sleeve chimney includes a hoisting rope assembly installed on a hoisting device. Two sets of hoisting rope assemblies are symmetrically arranged. The hoisting rope assembly includes a long steel wire rope 1, an outer cylinder steel wire rope 2, and an inner cylinder steel wire rope 3. One end of the outer cylinder steel wire rope 2 is connected to the outer cylinder lifting lug 13 of the outer cylinder, and the other end is connected to the long steel wire rope 1. One end of the inner cylinder steel wire rope 3 is connected to the inner cylinder lifting lug 4 of the inner cylinder, and the other end is connected to the long steel wire rope 1. The long steel wire rope 1 is used to connect to the hook of the hoisting device. Three sets of steel wire ropes—short, medium, and long—are installed: outer cylinder steel wire rope 2, inner cylinder steel wire rope 3, and long steel wire rope 1. Two inner cylinder lifting lugs 4 are symmetrically fixed to the side wall at the top of the inner cylinder. The inner cylinder steel wire rope 3 of the two sets of lifting rope assemblies is connected to the two inner cylinder lifting lugs 4 respectively. Two outer cylinder lifting lugs 13 are symmetrically fixed to the side wall at the top of the outer cylinder. The outer cylinder steel wire rope 2 of the two sets of lifting rope assemblies is connected to the two outer cylinder lifting lugs 13 respectively. The end of the inner cylinder steel wire rope 3 furthest from the inner cylinder lifting lug 4 is connected to the corresponding long steel wire rope 1. The end of the outer cylinder steel wire rope 2 furthest from the outer cylinder lifting lug 13 is connected to the corresponding long steel wire rope 1. The long steel wire rope 1 is furthest from the outer cylinder... One end of the wire rope 2 is connected to a lifting ring. Finally, the crane hooks onto the lifting rings on the two long wire ropes 1 to lift the inner and outer cylinders together. Because the inner cylinder wire rope 3 is relatively long, when the chimney is off the ground, the height of the inner cylinder flange 14 at the bottom of the inner cylinder is lower than that of the outer cylinder flange 15. Using this height difference, we can first complete the connection of the inner cylinder flanges of the upper and lower chimney sections and tighten the flange connection bolts. Then, we connect the outer cylinder, that is, lower the outer cylinder so that the outer cylinder flanges 15 of the upper and lower outer cylinders are connected, and complete the flange bolt connection. The wire rope has a certain degree of flexibility, and the installers can carry it with them, resulting in low transportation costs.

[0019] Example 2

[0020] Based on Example 1, such as Figures 1 to 3 As shown, both ends of the long steel wire rope 1 are connected to rings 5, and both ends of the outer cylinder steel wire rope 2 and the inner cylinder steel wire rope 3 are connected to elastic lifting rings 6. Each elastic lifting ring 6 includes a lifting ring body 7 and a movable body 8. The side of the lifting ring body 7 has a notch, and the movable body 8 is disposed within the notch. One end of the movable body 8 is hinged to the lifting ring body 7, and the other end contacts the lifting ring body 1 to close the notch. The lifting ring body 7 has an installation groove at one end of the notch, and a hinge shaft 9 is fixed within the installation groove. One end of the movable body 8 has a through hole. An internal torsion spring is installed and fixedly mounted on the hinge shaft 9. Since the two ends of the outer cylinder wire rope 2 need to be connected to the outer cylinder lifting lug 13 and the long wire rope 1, and the two ends of the inner cylinder wire rope 3 need to be connected to the inner cylinder lifting lug 4 and the long wire rope 1, an elastic lifting ring 6 is provided to facilitate the installation and disassembly of the outer cylinder wire rope 2 and the inner cylinder wire rope 3. The elastic lifting ring 6 is set as a movable structure. By pushing the movable body 8, the torsion spring is deformed, and the movable body 8 is separated from the lifting ring body 7, thereby opening the notch of the lifting ring body 7 for easy connection.

[0021] Furthermore, such as Figure 2 and Figure 3 As shown, the movable body 8 has a first wedge-shaped surface 10 on the outer side of the end away from the hinge shaft 9, and the lifting ring body 7 has a second wedge-shaped surface 11 on the inner side of the notch. The first wedge-shaped surface 10 and the second wedge-shaped surface 11 are inclined to cooperate, so that the movable body 8 can only be deflected to the inner side of the lifting ring body 7 to open the notch. It is impossible to open the notch from the outer side of the lifting ring body 7. When the lifting is offset and the ring 5 or the lifting lug squeezes the movable body 8, the first wedge-shaped surface 10 and the second wedge-shaped surface 11 come into contact to prevent the movable body 8 from deflecting to the outer side to open the notch, making it safer to use.

[0022] Example 3

[0023] Based on Example 2, such as Figures 1 to 3 As shown, two sets of limiting protrusions 12 are fixed at both ends of the inner wall of the lifting ring body 7. The two sets of limiting protrusions 12 form a steel wire rope restriction space. When the outer cylinder lifting lug 13, the inner cylinder lifting lug 4 and the ring 5 are engaged with the elastic lifting ring 6, their engagement positions are located between the two sets of limiting protrusions 12, thereby reducing the amount of chimney swaying during the hoisting process, speeding up the connection between the upper and lower chimney sections and improving the chimney installation efficiency.

Claims

1. A hoisting device for a sleeve chimney, characterized in that, The system includes a hoisting rope assembly installed on a lifting device. Two sets of the hoisting rope assembly are symmetrically arranged. The hoisting rope assembly includes a long steel wire rope (1), an outer cylinder steel wire rope (2), and an inner cylinder steel wire rope (3). One end of the outer cylinder steel wire rope (2) is connected to the outer cylinder lifting lug (13) of the outer cylinder, and the other end is connected to the long steel wire rope (1). One end of the inner cylinder steel wire rope (3) is connected to the inner cylinder lifting lug (4) of the inner cylinder, and the other end is connected to the long steel wire rope (1). The long steel wire rope (1) is used to connect to the hook of the lifting device.

2. The hoisting device for a sleeve chimney according to claim 1, characterized in that, Both ends of the long steel wire rope (1) are connected to rings (5), and both ends of the outer cylinder steel wire rope (2) and the inner cylinder steel wire rope (3) are connected to elastic lifting rings (6).

3. A hoisting device for a sleeve chimney according to claim 2, characterized in that, The elastic lifting ring (6) includes a lifting ring body (7) and a movable body (8). The side of the lifting ring body (7) is provided with a notch. The movable body (8) is disposed in the notch. One end of the movable body (8) is hinged to the lifting ring body (7), and the other end contacts the lifting ring body (7) to close the notch.

4. A hoisting device for a sleeve chimney according to claim 3, characterized in that, The lifting ring body (7) has an installation groove at one end of the notch, and a hinge shaft (9) is fixed in the installation groove. One end of the movable body (8) has a through hole, and a torsion spring is installed in the through hole. The torsion spring is fixedly mounted on the hinge shaft (9).

5. A hoisting device for a sleeve chimney according to claim 4, characterized in that, The movable body (8) has a first wedge-shaped surface (10) on the outer side away from the hinge shaft (9), and the lifting ring body (7) has a second wedge-shaped surface (11) on the inner side of the notch. The first wedge-shaped surface (10) and the second wedge-shaped surface (11) are inclined to cooperate.

6. A hoisting device for a sleeve chimney according to claim 5, characterized in that, Two sets of limiting protrusions (12) are fixed at both ends of the inner wall of the lifting ring body (7), and a steel wire rope limiting space is formed between the two sets of limiting protrusions (12).

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