Roll collar lifting appliance

Abstract

The utility model belongs to the field of universal rolling mills, and particularly relates to a roll collar lifting appliance, which is mainly used for lifting roll collars and comprises a mounting plate, a lifting shaft, a lifting hook and a fixing plate. A first through hole is formed in the center of the mounting plate, and the hanger shaft is located in the first through hole and is in sliding fit with the first through hole; the lifting hooks are arranged in an annular array around the mounting plate, the upper ends of the lifting hooks are rotationally connected with the mounting plate, the lower ends of the lifting hooks are provided with hooking parts 33 facing the outer side, and the middle parts of the lifting hooks protrude inwards; the fixing plate is mounted at the lower end of the lifting shaft, and the fixing plate can slide up and down along the inner side of the lifting hook when the lifting shaft slides up and down relative to the mounting plate. When the lifting hook is used, the lifting hooks only need to be inserted into the inner hole of the roll collar, and the fixing plate can drive the hooking part to firmly hook the roll collar by pulling the lifting shaft upwards, so that the roll collar can be lifted; due to the fact that the mounting plate, the lifting shaft and the lifting hook are all in hard connection, the stability of the roll collar in the lifting process can be guaranteed, and operation is very convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal rolling mill auxiliary equipment in a steel section workshop, and specifically relates to a roller ring hanger. Background Art

[0002] The universal rolling mill is generally composed of a pair of horizontal rollers and a pair of vertical rollers to form the main frame, which can process the rolled parts in the steel workshop on all four sides. It includes the vertical roller ring and the horizontal roller ring. The roller ring needs to be hoisted during the disassembly and installation process. The conventional practice is to use wire ropes to assist in hoisting, but the wire ropes will shake greatly during the hoisting process and there is a risk of falling off. Utility Model Content

[0003] The present application provides a roller ring lifting device, which is mainly used to solve the problem of severe shaking and the risk of falling off during the roller ring lifting process in the prior art.

[0004] The present application provides a roller ring hoist, which is mainly used for hoisting roller rings and is characterized by comprising:

[0005] A mounting plate, wherein the center of the mounting plate has a first through hole;

[0006] A hanging shaft, the hanging shaft is located in the first through hole and slidingly cooperates with the first through hole;

[0007] More than two hooks, all of which are arranged in a circular array around the mounting plate, the upper ends of the hooks are rotatably connected to the mounting plate, the lower ends of the hooks have hooking portions 33 facing outward, and the middle portions of the hooks protrude inward;

[0008] A fixing plate is mounted on the lower end of the hanging shaft, and when the hanging shaft slides up and down relative to the mounting plate, the fixing plate is configured to be able to slide up and down along the inner side of the hook.

[0009] The roller ring hoist is mainly used for hoisting the roller ring. When in use, it is only necessary to insert the hooks into the inner hole of the roller ring, pull up the hanging shaft, move the fixed plate upward to support all the hooks, so that the hook part can firmly hook the roller ring, and then the roller ring can be hoisted. Since the mounting plate, hanging shaft and hook are all hard-linked, the stability of the roller ring during the hoisting process can be guaranteed, and the operation is very convenient.

[0010] In the technical solution of one embodiment, the number of the hooks is 3-4.

[0011] In the technical solution of one embodiment, the mounting plate includes a mounting plate body, the center of the mounting plate body has a first through hole, the outer edge of the mounting plate body is evenly arranged with hinge parts with the same number as the hooks, and the hinge parts are used to be hinged with the hooks.

[0012] In a technical solution of an embodiment, an inner wall of the first through hole is provided with an axially arranged limit groove, and the hanging shaft has an axially arranged limit key, and the limit key is axially slidably matched with the limit groove.

[0013] In the technical solution of one embodiment, the hook includes an elongated hook body, the inner side of the hook body has a protrusion, and the protrusion is wedge-shaped or arc-shaped.

[0014] In a technical solution of an embodiment, the fixing plate includes a fixing plate body, and the fixing plate body is circular.

[0015] In a technical solution of an embodiment, the outer edge of the upper surface of the fixing plate body is chamfered in an arc shape.

[0016] In the technical solution of one embodiment, the center of the fixing plate body has a second through hole, and the fixing plate body is sleeved on the hanging shaft; the lower end of the hanging shaft has an external thread and is equipped with a nut.

[0017] In a technical solution of an embodiment, the lower surface of the fixing plate body has a thickened portion, and the thickened portion is arranged around the second through hole.

[0018] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in this application are used to illustrate preferred embodiments, so as to facilitate a person skilled in the art to clearly understand various other advantages and benefits, and should not be considered as limiting this application. In addition, the same reference numerals are used to represent the same components in all the drawings.

[0020] Figure 1 Schematic diagram of a roller ring hanger in one embodiment of the present application.

[0021] Figure 2 It is a schematic diagram of a roller ring hoist when hoisting a roller ring in one embodiment of the present application.

[0022] Figure 3 It is a schematic diagram of a mounting plate in one embodiment of the present application.

[0023] Figure 4 It is a schematic diagram of a hook in one embodiment of the present application.

[0024] Figure 5 Schematic diagram of a support plate in one embodiment of the present application.

[0025] Figure 6It is a partial schematic diagram of a suspension shaft in one embodiment of the present application.

[0026] Description of Figure Numbers:

[0027] 10-mounting plate, 11-mounting plate body, 12-first through hole, 13-hinge portion, 14-limiting groove;

[0028] 20- suspension shaft;

[0029] 30-hook, 31-hook body, 32-hinged hole, 33-hook portion, 34-protruding portion;

[0030] 40 -fixing plate, 41 -fixing plate body, 42 -second through hole, 43 -thickened portion, 44 -nut.

[0031] 50-rings;

[0032] 60-Roller ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two (including two), unless otherwise clearly and specifically defined.

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] See also Figure 1-Figure 6 As shown, in one aspect, an embodiment of the present application provides a roller ring hoist, which is mainly used for hoisting a universal rolling mill roller ring 60, and mainly includes a mounting plate 10, a suspension shaft 20, two or more suspension hooks 30 and a fixed plate 40. The mounting plate 10 has a first through hole 12 in the center, and the suspension shaft 20 is inserted into the first through hole 12 and slidably cooperates with the first through hole 12; all the suspension hooks 30 are arranged in a ring array (or radially arranged) around the mounting plate 10, and the upper end of the suspension hook 30 is rotatably connected to the outer edge of the mounting plate 10, and the lower end of the suspension hook 30 has a hooking portion 33 facing outward, and the middle part of the suspension hook 30 protrudes inward, and the protrusion and the hook 30 are smoothly transitioned as a whole; the fixed plate 40 is installed at the lower end of the suspension shaft 20, and when the suspension shaft 20 slides up and down relative to the mounting plate 10, the fixed plate 40 slides up and down correspondingly along the inner edge of the suspension hook 30. When the roller ring hoist in this embodiment is used, first insert all the hooks 30 into the inner hole of the roller ring, then fix the mounting plate 10 and pull up the suspension shaft 20, the fixing plate 40 moves upward, and all the hooks 30 are opened synchronously, so that the hooking part 33 firmly hooks the roller ring 60, and then the upper end of the suspension shaft 20 can be connected for lifting. Since the mounting plate 10, the suspension shaft 20 and the hook 30 are all hard-linked (compared to the steel rope), the roller ring hoist and the roller ring 60 become a whole during the lifting process, and will not shake like the steel rope connection, which can ensure the stability of the roller ring 60 during the lifting process, and it is also very convenient to operate.

[0039] In some embodiments, in order to further maintain stability, spacing reliability and low cost, the number of hooks 30 can be 3-4, and the hooking parts 33 of the three hooks 30 can ensure the stability of the roller ring 60 (three points are coplanar); too many hooks 30 will increase the cost, and the reliability will decrease as the number increases. Figure 3 , four hooks 30 are used, and three hooks 30 are no longer described in detail.

[0040] In some embodiments, the mounting plate 10 includes a mounting plate body 11 having a first through hole 12 at the center thereof, and the outer edge of the mounting plate body 11 is evenly provided with hinged portions 13 having the same number as the hooks 30 , and the hinged portions 13 are used for hinged connection with the hooks 30 .

[0041] It is understandable that the mounting plate body 11 can be a regular circle or polygon to ensure balanced configuration. The first through hole 12 can be a circle, or other similar shapes that can achieve axial sliding fit, which will not be listed here.

[0042] Furthermore, when the first through hole 12 is designed to be circular, a limit groove 14 can be opened on the inner wall of the first through hole 12, and the limit groove 14 is arranged axially. The hanging shaft 20 has an axially arranged limit key (not shown in the figure), and the limit key is axially slidably matched with the limit groove 14. By setting the limit groove 14 to cooperate with the hanging shaft 20, the hanging shaft 20 can be prevented from rotating relative to the hook 30, thereby preventing the roller ring 60 from rotating uncontrolled during the lifting process.

[0043] In some embodiments, the hook 30 includes a long hook body 31, a hinge hole 32 is provided at the upper end of the hook body 31 for hinge connection with the hinge part 13; a hooking part 33 is protruded from the lower end of the hook body 31; and a protrusion 34 is provided on the inner side of the middle of the hook body 31. The protrusion 34 is preferably wedge-shaped or arc-shaped, and does not smoothly transition with the hook body 31. The wedge-shaped or arc-shaped protrusion 34 makes it smooth when the fixing plate 40 slides relative to it.

[0044] exist Figure 4 In the illustrated embodiment, the hook body 31 is formed by stamping a steel sheet and then polished, so it is easy to manufacture and has high structural strength.

[0045] In some embodiments, the fixing plate 40 includes a fixing plate body 41, the fixing plate body 41 is circular, and the suspension shaft 20 is centrally connected to the fixing plate body 41. The circular fixing plate 40 can ensure that the support of all the suspension hooks 30 tends to be synchronous.

[0046] Furthermore, an arc-shaped chamfer may be formed on the outer edge of the upper surface of the fixing plate body 41 to improve the smoothness when sliding with the hook 30 .

[0047] Furthermore, in order to facilitate the disassembly and assembly between the fixing plate 40 and the suspension shaft 20, and also to facilitate the assembly of the entire roller ring hanger, the fixing plate 40 and the suspension shaft 20 can be designed to be detachably connected. Specifically, a second through hole 42 is opened in the center of the fixing plate body 41, and the suspension shaft 20 is inserted into the second through hole 42; then an external thread is designed at the lower end of the suspension shaft 20, and a matching nut 44 is connected, and the fixing plate 40 is installed on the suspension shaft 20.

[0048] Furthermore, a thickened portion 43 may be designed on the lower surface of the fixing plate body 41, and the thickened portion 43 is arranged around the second through hole 42. The support of the nut 44 to the fixing plate 40 all falls on the thickened portion 43, which can prevent the fixing plate body 41 from deforming during use and also reduce the weight.

[0049] In summary, the roller ring hoist provided by the present application is mainly used for hoisting the roller ring. When in use, it is only necessary to insert the hooks 30 into the inner hole of the roller ring, pull up the hanging shaft 20, and the hanging shaft 20 moves up with the fixing plate 40, and simultaneously open all the hooks 30, so that the hooking part 33 firmly hooks the roller ring 60, and then the roller ring 60 can be hoisted to complete the hoisting. By adopting a hard link, the stability of the roller ring 60 during the hoisting process can be ensured, and the operation is very convenient. In addition, the structure is simple and easy to operate, and the hoisting of roller rings with different inner diameters can be satisfied within the adjustment range.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A roller ring hoist, mainly used for hoisting roller rings, characterized in that include: A mounting plate, wherein the center of the mounting plate has a first through hole; A hanging shaft, the hanging shaft is located in the first through hole and slidingly cooperates with the first through hole; More than two hooks, all of which are arranged in a circular array around the mounting plate, the upper ends of the hooks being rotatably connected to the mounting plate, the lower ends of the hooks having hooking portions (33) facing outwards, and the middle portions of the hooks protruding inwards; A fixing plate is mounted on the lower end of the hanging shaft, and when the hanging shaft slides up and down relative to the mounting plate, the fixing plate is configured to be able to slide up and down along the inner side of the hook.

2. The roller ring hanger according to claim 1, characterized in that: The number of the hooks is 3-4.

3. The roller ring hanger according to claim 1, characterized in that: The mounting plate comprises a mounting plate body, the center of the mounting plate body is provided with a first through hole, and the outer edge of the mounting plate body is evenly arranged with hinged parts having the same number as the hooks, and the hinged parts are used for hinged connection with the hooks.

4. The roller ring hanger according to claim 3, characterized in that: An inner wall of the first through hole is provided with an axially arranged limiting groove, and the hanging shaft has an axially arranged limiting key, and the limiting key is axially slidably matched with the limiting groove.

5. The roller ring hanger according to claim 1, characterized in that: The hook comprises a long hook body, the inner side of which is provided with a protrusion, and the protrusion is wedge-shaped or arc-shaped.

6. The roller ring hanger according to claim 1, characterized in that: The fixing plate comprises a fixing plate body, and the fixing plate body is circular.

7. The roller ring hanger according to claim 6, characterized in that: The outer edge of the upper surface of the fixing plate body is chamfered in an arc shape.

8. The roller ring hanger according to claim 6, characterized in that: The center of the fixing plate body is provided with a second through hole, and the fixing plate body is sleeved on the hanging shaft; the lower end of the hanging shaft is provided with an external thread and is equipped with a nut.

9. The roller ring hanger according to claim 8, characterized in that: The lower surface of the fixing plate body has a thickened portion, and the thickened portion is arranged around the second through hole.

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