Lifting appliance for realizing box turnover function of hot rolling and finish rolling working roll

Abstract

The utility model discloses a lifting appliance for realizing a box turnover function of a hot rolling and finish rolling working roll, which comprises a lifting beam structure used for supporting other components, and two ends of the lifting beam structure are respectively provided with a clamp structure and a hook head structure downwards; the transmission side roller head of the roller with the box is supported through the up-down stroke and opening and closing of the clamp structure; the working side roller head of the roller with the box is supported through the up-and-down stroke and opening and closing of the hook head structure; the transmission side power device and the working side power device are connected with the driving hydraulic unit through hydraulic pipelines and are controlled by the driving hydraulic unit; the hanging beam structure is arranged on the guide rail and slides up and down along the guide rail through the sliding assembly. A box turnover structure is arranged below the hanging beam structure, the box turnover structure is driven by the driving hydraulic unit, and at least one hydraulic rod stretching up and down is arranged in the box turnover structure.

Description

Technical Field

[0001] The utility model relates to the field of hot rolling finishing work roll manufacturing, in particular to a hoisting device for realizing the box turning function of the hot rolling finishing work roll. Background Art

[0002] Hot-rolled finishing rolls are typically ground with the bearing housing removed, meaning the grinding process is performed without removing the bearing housing. To maintain the bearing housing's balance during the grinding process and prevent interference with the grinding wheel and tool, the bearing housing must be flipped 45° from a flat position before grinding. Currently, mainstream hot-rolled mills utilize proprietary housing flipping devices and bearing housing support systems for finishing roll grinders. However, due to the harsh, oily, and muddy working conditions of hot-rolled mills, coupled with the complex wiring layout of the two devices, equipment failures frequently impact grinding production and increase the workload of inspection personnel.

[0003] How to achieve efficient and convenient replacement and disassembly of grinding machine supports in the context of improving production efficiency and streamlining staff is an urgent need in current production. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the present utility model is to provide a sling that realizes the box turning function of the hot rolling finishing work rolls.

[0005] Through the sling of the utility model, the box turning mechanism originally possessed by each grinder is concentrated on the sling, avoiding the harsh working conditions of oil and mud on the grinder, and completing the box turning in the air, thereby improving work efficiency and achieving fast production. At the same time, the structure of the support device is simplified, and only the extension and retraction functions of the soft support of the bearing box are retained, which reduces the failure rate and also reduces the workload and intensity of the inspection personnel.

[0006] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0007] A lifting device for realizing the box turning function of hot rolling finishing work rolls, comprising:

[0008] a hanging beam structure for supporting other components, with a clamp structure and a hook structure respectively provided downward at both ends of the hanging beam structure;

[0009] The up and down stroke and opening and closing of the clamp structure are controlled by the transmission side power device;

[0010] The up and down stroke and opening and closing of the hook structure are controlled by the working side power device;

[0011] The driving side roller head of the belt box roller is supported by the up and down stroke and opening and closing of the clamp structure;

[0012] The working side roller head of the box roller is supported by the up and down stroke and opening and closing of the hook head structure;

[0013] The transmission side power device and the working side power device are connected to the driving hydraulic unit through hydraulic pipelines and are controlled by the driving hydraulic unit;

[0014] The hanging beam structure is arranged on the guide rail and slides up and down along the guide rail through the sliding assembly;

[0015] A box turning structure is provided under the hanging beam structure. The box turning structure is driven by the driving hydraulic unit. At least one hydraulic rod that can be telescoped up and down is provided in the box turning structure.

[0016] In a preferred embodiment of the present invention, the sliding assembly is a first sliding assembly and a second sliding assembly symmetrically arranged at two ends of the central axis of the suspension beam structure.

[0017] In a preferred embodiment of the present invention, the first sliding assembly is a first pulley set and a first steel wire rope connected to the external fixed structure and the first sliding pulley set.

[0018] In a preferred embodiment of the present invention, the second sliding assembly is a second pulley set and a second steel wire rope connected to the external fixed structure and the second sliding pulley set.

[0019] In a preferred embodiment of the present invention, at least one transverse counterweight unit is provided below the suspension beam structure.

[0020] In a preferred embodiment of the present invention, the transmission-side power device is connected to the clamp structure via a rotating lifting structure.

[0021] In a preferred embodiment of the present invention, the working side power device is connected to the hook head structure via a rotating lifting structure.

[0022] The beneficial effects of the present invention are:

[0023] The utility model centralizes the box turning mechanism originally possessed by each grinder onto the sling, avoiding the harsh working conditions of high oil and mud on the grinder and completing the box turning in the air, thereby improving work efficiency and achieving rapid production. At the same time, it simplifies the structure of the supporting device, retaining only the extension and retraction functions of the soft support of the bearing box, reducing the failure rate and also reducing the workload and intensity of the inspection personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0025] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 . DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. However, it should be understood that the specific embodiments described herein are intended solely to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following descriptions to avoid unnecessary confusion regarding the concepts of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," and "top / bottom" and other terms indicating positions or locations are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific manner, and therefore should not be construed as limitations of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] like Figure 1-2 The illustrated sling for realizing the box turning function of hot rolling finishing work rolls includes a sling beam structure 100 for supporting other components, with a clamp structure 110 and a hook structure 120 respectively provided downwardly at both ends of the sling beam structure 100 .

[0029] The up and down stroke and opening and closing of the clamp structure 110 are controlled by the transmission side power device 130 , and the up and down stroke and opening and closing of the hook head structure 120 are controlled by the working side power device 140 .

[0030] The transmission-side power device 130 and the working-side power device 140 are both connected to the driving hydraulic unit 150 via a hydraulic pipeline 151 and are controlled by the driving hydraulic unit 150 .

[0031] The driving side roller head (not shown in the figure) of the box roller is supported by the up and down stroke and opening and closing of the clamping structure 110, and the working side roller head (not shown in the figure) of the box roller is supported by the up and down stroke and opening and closing of the hook head structure 120.

[0032] The hanging beam structure 100 is set on the guide rail and slides up and down along the guide rail through the sliding assembly 20. The sliding assembly 20 is a first sliding assembly 21 and a second sliding assembly 22 symmetrically arranged at both ends of the central axis of the hanging beam structure 100.

[0033] The first sliding assembly 21 includes a first pulley set 211 and a first steel wire rope 212 connected to an external fixed structure (not shown) and the first sliding pulley set 211 .

[0034] The sliding of the first pulley block 211 is controlled by the first steel wire rope 212 .

[0035] The second sliding assembly 22 includes a second pulley set 221 and a second steel wire rope 222 connected to an external fixed structure (not shown) and the second sliding pulley set 221 .

[0036] The sliding of the second sliding wheel set 221 is controlled by the second steel wire rope 222 .

[0037] A box-turning structure 160 is provided under the hanging beam structure 100 . The box-turning structure 160 is driven by the hydraulic unit 150 . At least one hydraulic rod 161 that can be telescoped upward and downward is provided in the box-turning structure 160 .

[0038] In order to configure the overall moving weight, a transverse counterweight unit 170 is provided below the hanging beam structure 100. The counterweight unit 170 may be a counterweight block that moves laterally left and right along the bottom of the hanging beam structure 100.

[0039] Because of the above structure, the working principle of the utility model is:

[0040] The sling of the present invention reaches a position above the box roller (not shown in the figure), and the central control module 180 of the sling receives a lifting instruction, and controls the operation of the rotating lifting structure 190 by driving the hydraulic unit 150 and the hydraulic pipeline 151, so that the up and down stroke and opening and closing of the clamp structure 110 and the up and down stroke and opening and closing of the hook head structure 120 can be adjusted according to the type of the lifted roller.

[0041] The rotary lifting structure 190 is connected to the clamp structure 110 and the hook structure 120 respectively, and the rotary lifting operation of the clamp structure 110 and the hook structure 120 is realized by rotating the lifting structure 190. The rotary lifting structure 190 itself has a built-in cylinder.

[0042] After the stroke adjustment is completed, the clamp structure 110 opens to the stroke limit, and the hook structure 120 extends outward to the stroke limit.

[0043] When the lifting beam structure 100 drops to a suitable position away from the box roller through the first sliding assembly 21 and the second sliding assembly 22, the central control module 180 of the sling issues a roller grabbing instruction, and drives the hydraulic unit 150 and the hydraulic pipeline 151 to close the clamping structure 110 to support the driving side roller head of the box roller (not shown in the figure). At the same time, the hook head structure 120 retracts inward to the stroke limit so that the hook head 121 at its end can support the working side roller head of the box roller (not shown in the figure).

[0044] After completing the roller grabbing, the hanging beam structure 100 rises slowly, and supports the driving side roller head (not shown in the figure) of the box roller through the up and down stroke and opening and closing of the clamp structure 110, and supports the working side roller head (not shown in the figure) of the box roller through the up and down stroke and opening and closing of the hook head structure 120.

[0045] And make the box roller as a whole leave the grinder a certain distance.

[0046] At this time, the box-turning structure 160 extends the hydraulic rod 161 to support the bearing box to prevent shaking. At the same time, the transverse counterweight unit 170 automatically adjusts the counterweight according to the preset position to ensure the overall balance of the sling after lifting.

[0047] After completing the above steps, the spreader rises at a constant speed to the limit position. The spreader's central control module 180 issues a command to flip the bearing housing. The transmission-side power unit 130 and the working-side power unit 140 respectively press against the transmission-side (DS) and working-side (O.S) bearing housings to flip them, turning them flat from their side during grinding. Simultaneously, the counterweight unit 170 automatically adjusts the counterweight according to the preset position to ensure the spreader's overall balance during the flipping process, eliminating the risk of the spreader's center of gravity being unbalanced due to the bearing housing flipping.

[0048] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above.

[0049] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A sling for realizing the box turning function of hot rolling finishing work rolls, characterized in that: include: a hanging beam structure for supporting other components, with a clamp structure and a hook structure respectively provided downward at both ends of the hanging beam structure; The up and down travel and opening and closing of the clamp structure are controlled by a transmission side force device; The up and down stroke and opening and closing of the hook structure are controlled by the working side power device; The driving side roller head of the belt box roller is supported by the up and down stroke and opening and closing of the clamp structure; The working side roller head of the box roller is supported by the up and down stroke and opening and closing of the hook head structure; The transmission side power device and the working side power device are connected to the driving hydraulic unit through hydraulic pipelines and are controlled by the driving hydraulic unit; The hanging beam structure is arranged on the guide rail and slides up and down along the guide rail through the sliding assembly; A box-turning structure is provided under the hanging beam structure. The box-turning structure is driven by the driving hydraulic unit. Two groups of hydraulic rods that can be telescoped up and down are provided in the box-turning structure.

2. A sling for realizing the box turning function of hot rolling finishing work rolls according to claim 1, characterized in that: The sliding components are a first sliding component and a second sliding component symmetrically arranged at two ends of the central axis of the suspension beam structure.

3. The sling for realizing the box turning function of hot rolling finishing work rolls according to claim 1, characterized in that: The first sliding assembly is a first pulley set and a first steel wire rope connected to the external fixed structure and the first sliding pulley set.

4. The sling for realizing the box turning function of hot rolling finishing work rolls according to claim 1, characterized in that: The second sliding assembly is a second pulley set and a second steel wire rope connected to the external fixed structure and the second sliding pulley set.

5. The sling for realizing the box turning function of hot rolling finishing work rolls according to claim 1, characterized in that: At least one transverse counterweight unit is provided below the suspension beam structure.

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