Easily disassembled and assembled axial locking device for roller of short-stress rolling mill

Abstract

The utility model belongs to the technical field of steel rolling production equipment, and relates to a short-stress rolling mill roller axial locking device easy to disassemble and assemble, which comprises a positioning block, a spherical pad and a pressing block which are arranged along the axial direction of a roller, one end of the positioning block is pressed and attached to the end face of a rolling mill bearing seat on a roller, the two sides of the other end of the positioning block are connected with two sets of spherical pads through bolts, and the two sets of spherical pads conduct axial limiting on the positioning block. The pressing blocks are arranged on the sides, away from the positioning block, of the two sets of spherical pads, the pressing blocks are fixedly connected with the rolling mill pull rod support through bolts and attached to the spherical pads in a pressed mode, the spherical pads and the positioning block are clamped between the two pressing blocks, and the spherical pads are axially limited. According to the utility model, the locking device is separated from the rolling mill bearing seat, when the axial locking device is replaced or maintained, the positioning block and the spherical pad can be taken out for integral replacement or maintenance only by disassembling the bolt, so that the manpower and time cost for replacing and maintaining the axial locking device of the roller can be greatly saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel rolling production equipment and relates to an axial locking device for a short stress rolling mill roll which is easy to disassemble and assemble. Background Art

[0002] Short stress line rolling mills are widely used in long steel rolling production lines. They are the core equipment of rolling lines such as roughing, medium and pre-finishing mills for high-speed wires and high-bars, full-line rolling mills for small bars and medium bars, medium and fine rolling mills for high-quality steel large bars, and medium and fine rolling mills for steel sections. They roll carbon steel, alloy steel, gear steel, spring steel, bearing steel, stainless steel and other types of steel, and produce steel for construction, structure, machinery, and military purposes. Therefore, the performance and ease of operation of short stress rolling mills have a great impact on the quality and efficiency of production products.

[0003] When the rolling mill rolls are worn out after rolling for a period of time, they will be replaced offline. The reinstalled rolling mill rolls are divided into upper and lower rolls. The rolls need to be axially adjusted to align the holes and slots, and then axially locked to prevent the adjusted rolls from axially deviating and causing misalignment of the holes and slots, resulting in substandard quality of the rolled products. In addition, the rolls will be subjected to axial force during the rolling process, and the axial direction of the bearing seat is fixed by a locking device. The locking device will inevitably be subjected to axial force, which requires necessary maintenance and replacement.

[0004] When replacing and maintaining the traditional axial locking device, the rolling mill core must be disassembled as a whole to replace and maintain the spherical pad on the transmission side, which consumes huge manpower and time costs. This leads to low maintenance efficiency and high cost of the axial locking device. Therefore, it is very important to optimize the structure of the axial locking device so that it can be maintained and replaced simply and conveniently, which can greatly save manpower and time costs and improve product production efficiency and finished product quality. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an easily disassembled short-stress rolling mill roller axial locking device. When replacing or maintaining the axial locking device, the positioning block and the spherical pad can be taken out for overall replacement or maintenance by simply removing the bolts. During installation, it is also only necessary to connect the various parts by bolts for fixed restoration, which can greatly save the manpower and time costs of replacing and maintaining the roller axial locking device.

[0006] In order to achieve the above object, the utility model provides the following technical solutions:

[0007] An easily disassembled short-stress rolling mill roll axial locking device comprises a positioning block, a spherical pad and a pressure block arranged along the axial direction of the rolling mill; one end of the positioning block is pressed against the end face of the rolling mill bearing seat on the rolling mill, and two groups of spherical pads are connected on both sides of the other end by bolts, and the two groups of spherical pads axially limit the positioning block; the pressure blocks are provided on the side of the two groups of spherical pads away from the positioning blocks, and the pressure blocks are fixedly connected to the rolling mill tie rod support by bolts and pressed against the spherical pads, and the two pressure blocks sandwich the spherical pad and the positioning block in the middle to limit the spherical pad axially.

[0008] Furthermore, the spherical pad includes a concave spherical pad and a convex spherical pad, the concave spherical pad and the convex spherical pad are spherically fitted, and bolts pass through the concave spherical pad and the convex spherical pad to fix the concave spherical pad and the convex spherical pad on the positioning block.

[0009] Furthermore, a lubrication hole is provided on the positioning block, and the lubrication hole is communicated with a threaded hole on the positioning block through which the spherical pad is connected.

[0010] Furthermore, the rolling mill bearing seat is provided with a concave surface, and the positioning block is pressed into the concave surface, which facilitates the installation and positioning of the positioning block.

[0011] Furthermore, the easily disassembled short-stress rolling mill roll axial locking devices are arranged in pairs, with at least one device being provided at each of the left and right ends of each rolling mill bearing seat.

[0012] The beneficial effects of the utility model are:

[0013] The utility model fixes the positioning block to the end face of the rolling mill bearing seat on the operating side by bolts, and the spherical pad is connected to the positioning block by bolts, and the locking device is separated from the rolling mill bearing seat. When replacing or maintaining the axial locking device, the positioning block and the spherical pad can be taken out for overall replacement or maintenance by simply removing the bolts, and during installation, it is also only necessary to connect the various parts by bolts for fixing and restoring. While ensuring that the performance remains unchanged, the manpower and time costs of replacing and maintaining the roller axial locking device can be greatly saved.

[0014] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0016] Figure 1It is a schematic diagram of the installation state of the axial locking device of the short stress rolling mill roll which is easy to disassemble and assemble in the utility model.

[0017] Figure 2 This is an enlarged view of the easily disassembled short-stress rolling mill roll axial locking device in the installed state.

[0018] Figure 3 This is a partial enlarged view of the easily disassembled short-stress rolling mill roll axial locking device.

[0019] Figure 4 A cross-sectional view of an easily disassembled short-stress rolling mill roll axial locking device.

[0020] Figure numerals: 1- rolling mill upper bearing seat; 4- rolling mill lower bearing seat; 2- positioning block; 3- positioning block; 5- pressing block; 6- concave spherical pad; 7- convex spherical pad; 8- concave spherical pad; 9- convex spherical pad; 10- pressing block; 11- tie rod support. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0022] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0023] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] See also Figures 1 to 4 , is an easily disassembled short stress line rolling mill axial locking device, which is arranged in pairs, and at least one is installed at the left and right ends of each rolling mill bearing seat. It includes a pressing block, a positioning block, and a spherical pad. The spherical pad includes a concave spherical pad and a convex spherical pad. The concave spherical pad and the convex spherical pad are fitted with each other through spherical surfaces. Bolts pass through the concave spherical pad and the convex spherical pad to fix the concave spherical pad and the convex spherical pad on the positioning block.

[0025] A lubrication hole is provided on the positioning block, and the lubrication hole is communicated with a threaded hole on the positioning block connected to the spherical pad; a concave surface is provided on the bearing seat of the rolling mill, and the positioning block is pressed into the concave surface, which is convenient for the installation and positioning of the positioning block.

[0026] In this embodiment, there are four pairs of easily disassembled short-stress rolling mill roller axial locking devices, taking two pairs on one side as an example, including a positioning block 2, a positioning block 3, a pressure block 5, a concave spherical pad 6, a convex spherical pad 7, a concave spherical pad 8, a convex spherical pad 9, and a pressure block 10 which are respectively pressed against the upper bearing seat 1 and the lower bearing seat 4 of the rolling mill.

[0027] The positioning blocks 2 and 3 are fixed on the end faces of the upper bearing seat 1 and the lower bearing seat 4 of the rolling mill by bolts, respectively; the concave spherical pad 6 and the convex spherical pad 7, the concave spherical pad 8 and the convex spherical pad 9 are connected to the positioning blocks 2 and 3 by bolts, respectively, and are distributed on both sides of the axial direction of the positioning blocks 2 and 3; the spherical pads along the operating side are axially constrained by the pressure blocks 5 on the tie rod support 11, and the spherical pads along the transmission side are axially constrained by the pressure blocks 10 on the tie rod support 11.

[0028] Compared with the axial locking device of the traditional rolling mill, the axial locking device provided by the utility model has a simple structure and is easy to operate. The parts of the locking device can be disassembled by disassembling the connecting bolts one by one from the pressing block 5, the concave spherical pad 6, the convex spherical pad 7, the positioning block 2 to the concave spherical pad 8, the convex spherical pad 9, and the pressing block 10 from the outside to the inside. After disassembly, the parts can be maintained or replaced, and then installed in reverse order. This can greatly reduce the time for maintenance and replacement, improve production efficiency and yield rate, and improve product quality.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. An easily disassembled short stress rolling mill roll axial locking device, characterized in that: It includes a positioning block, a spherical pad and a pressure block arranged along the axial direction of the roller; one end of the positioning block is pressed against the end face of the rolling mill bearing seat on the roller, and two groups of spherical pads are connected on both sides of the other end by bolts, and the two groups of spherical pads limit the axial position of the positioning block; the pressure blocks are provided on the side of the two groups of spherical pads away from the positioning block, and the pressure blocks are fixedly connected to the rolling mill tie rod support by bolts and pressed against the spherical pads, and the two pressure blocks sandwich the spherical pad and the positioning block in the middle to limit the spherical pad in the axial direction.

2. The easily disassembled short stress rolling mill roll axial locking device according to claim 1, characterized in that: The spherical pad comprises a concave spherical pad and a convex spherical pad, the concave spherical pad and the convex spherical pad are spherically fitted, and bolts pass through the concave spherical pad and the convex spherical pad to fix the concave spherical pad and the convex spherical pad on the positioning block.

3. The easily disassembled short stress rolling mill roll axial locking device according to claim 1, characterized in that: A lubrication hole is provided on the positioning block, and the lubrication hole is communicated with a threaded hole on the positioning block through which the spherical pad is connected.

4. The easily disassembled short stress rolling mill roll axial locking device according to claim 1, characterized in that: The rolling mill bearing seat is provided with a concave surface, and the positioning block is pressed into the concave surface, which is convenient for the installation and positioning of the positioning block.

5. The easily disassembled short stress rolling mill roll axial locking device according to claim 4, characterized in that: The easily disassembled short-stress rolling mill roll axial locking devices are arranged in pairs, and at least one is respectively provided at the left and right ends of each rolling mill bearing seat.

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