Non-equidistant gap adjusting device for cogging mill

Abstract

The utility model discloses a blooming mill non-equidistant gap adjusting device, which comprises a fixed rack, a pull rod assembly and a roller seat, the fixed rack is a forge piece, and one set of fixed rack comprises four independent supports which are respectively arranged at four corners of a blooming mill, are fixed with a blooming mill foundation and are force bearing parts of the whole equipment; the upper end of the pull rod assembly is in a spline form, movement of the rollers is controlled through a screw-down device at the upper end, and the roller seat is divided into upper, lower, left and right independent supports which play a role in supporting the upper roller and the lower roller respectively. The four independent supports are provided with the four independent pull rod assemblies and the four roller supports in a matched mode, the supports and the roller supports are connected into a whole through the pull rod assemblies, and the gap between the upper roller support and the lower roller support can be adjusted in an up-and-down moving mode by rotating the pull rods and being matched with threads of the upper adjusting nut and the lower adjusting nut. And the device is reliable in work, compact in structure and convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling equipment, in particular to an unequal-spacing gap adjustment device for a blooming mill. Background Technique

[0002] With the rapid development of industrial technology, the blooming mill, as an important metal processing equipment, plays a crucial role in industries such as steel and non-ferrous metals. However, traditional blooming mills do not have the function of roll gap adjustment, which limits the applicability of the same blooming mill to different working conditions. At the same time, during the working process of the blooming mill, after determining the rolling center line, the distance that the upper roll needs to be adjusted is not equal to the distance that the lower roll needs to be adjusted. Under this background, a new type of unequal-spacing gap adjustment device for a blooming mill with the function of unequal-spacing gap adjustment has become an urgent need in the industry. Content of the Utility Model

[0003] The purpose of the utility model is to provide an unequal-spacing gap adjustment device for a blooming mill, which is used to realize the unequal-spacing adjustment of the upper and lower rolls to meet the working conditions of different specifications of the blooming mill, and has strong anti-impact load performance, reliable work, compact structure and convenient installation and maintenance, so as to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an unequal-spacing gap adjustment device for a blooming mill, including a fixed frame, a pull rod assembly and a roll seat. The roll seat is composed of four independent supports, namely, an upper left roll seat, an upper right roll seat, a lower left roll seat and a lower right roll seat, which respectively play the role of supporting the upper roll and the lower roll. The pull rod assembly connects the two through the positions reserved in the fixed frame and the roll seat. There are four independent groups of pull rod assemblies. Each group of pull rod assemblies includes a pull rod, an upper gland, an upper adjusting nut, a sealing component, a lower adjusting nut, a lower gland, a disc spring and a fixing pin. The pull rod is correspondingly connected to the upper and lower supports of the roll seat through the upper gland and the lower gland. The upper adjusting nut and the lower adjusting nut are fixedly connected to the inner walls of the upper and lower supports through the fixing pin. Trapezoidal threads are provided at corresponding positions on the pull rod to cooperate with the upper adjusting nut and the lower adjusting nut. By rotating the pull rod, the upper adjusting nut and the lower adjusting nut move up and down, thereby realizing the adjustment of the gap between the upper and lower supports of the roll seat.

[0005] Preferably, the fixed frame is a forging. A set of fixed frames includes four independent brackets, which are respectively arranged at the four corners of the blooming mill and fixed to the blooming mill foundation, serving as the load-bearing components of the whole equipment.

[0006] Preferably, a shaft seat for connecting with the pull rod is provided on the bracket, and the sealing component is filled at the connection between the shaft seat and the pull rod.

[0007] Preferably, the disc spring is in a compressed state and is located between the upper pressing cover and the upper adjusting nut for eliminating the gear clearance between the upper adjusting nut and the pull rod.

[0008] Preferably, the top end of the pull rod is a spline structure and is controlled to rotate by a pressing device adapted to the top end.

[0009] Preferably, the upper pressing cover and the lower sealing cover are fixed on the roll stand by screws.

[0010] Preferably, the pitch of the trapezoidal thread of the lower adjusting nut is designed to be one half of the pitch of the trapezoidal thread of the upper adjusting nut.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The non-equidistant gap adjusting device of this blooming mill is provided with four independent pull rod assemblies and four independently arranged roll supports through four independent brackets. The brackets and the roll supports are connected into one body through the pull rod assemblies, and the gap between the upper and lower roll supports can be adjusted up and down by rotating the pull rod and cooperating with the threads of the upper adjusting nut and the lower adjusting nut to meet the working conditions of different specifications of the blooming mill. Moreover, it has strong anti-impact load performance, reliable operation, compact structure and is convenient for installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the fixed frame of the present utility model;

[0015] Figure 3 is the structural schematic diagram of the pull rod assembly of the present utility model;

[0016] Figure 4 is the present utility model Figure 3 partial enlarged view of part A;

[0017] Figure 5 is the present utility model Figure 3 partial enlarged view of part B;

[0018] Figure 6 is the structural schematic diagram of the roll stand of the present utility model.

[0019] In the figure: 1, fixed frame; 101, bracket; 102, axle seat; 2, pull rod assembly; 201, pull rod; 202, upper pressing cover; 203, upper adjusting nut; 204, sealing assembly; 205, lower adjusting nut; 206, lower sealing cover; 207, disc spring; 208, fixed pin; 3, roll stand. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-6 , in this embodiment, a non-uniform gap adjustment device for a blooming mill is provided, which includes a fixed frame 1, a pull rod assembly 2 and a roll stand 3. The fixed frame 1 is a forging. A set of fixed frames 1 includes four independent brackets 101, and the four independent brackets 101 are respectively arranged at the four corners of the blooming mill and fixed to the blooming mill foundation, serving as the load-bearing components of the whole device; the roll stand 3 is composed of four independent supports, namely the upper left roll stand, the upper right roll stand, the lower left roll stand and the lower right roll stand, which respectively play the role of supporting the upper roll and the lower roll; the pull rod assembly 2 connects the two through the positions reserved in the fixed frame 1 and the roll stand 3.

[0022] Specifically, there are four independent sets of tie rod assemblies 2, which are distributed at the four corners of the bloom mill main body. Each set of tie rod assemblies 2 includes a tie rod 201, an upper gland 202, an upper adjusting nut 203, a sealing assembly 204, a lower adjusting nut 205, a lower gland 206, a disc spring 207 and a fixing pin 208. The top end of the tie rod 201 is a spline structure, and the rotation of the tie rod 201 is controlled by a pressing device (not shown in the figure) at the top end. The upper gland 202 is fixed to the roll stand 3 by screws, which plays a role in sealing and pressing. The upper adjusting nut 203 is designed with a trapezoidal thread that matches the corresponding position on the tie rod 201. When the tie rod 201 rotates driven by the pressing device, the upper adjusting nut 203 will move up and down accordingly. Since the upper adjusting nut 203 is fixed to the roll stand 3 by the fixing pin 208, the roll stand 3 will also move up and down, thereby realizing the function of adjusting the gap of the roll. A disc spring 207 is designed between the upper gland 202 and the upper adjusting nut 203, and the disc spring 207 is always in a compressed state. This design can eliminate the gear gap between the upper adjusting nut 203 and the tie rod 201, thereby reducing the error of gap adjustment. A pedestal 102 connected to the tie rod 201 is provided on the support 101, and the sealing assembly 204 is filled at the connection between the pedestal 102 and the tie rod 201. The sealing assembly 204 adopts a common shaft sealing structure. The installation and principle of the lower adjusting nut 205 are the same as those of the upper adjusting nut 203. Since during the working process of the bloom mill, after determining the rolling center line, the distance that the upper roll support needs to be adjusted is not equal to the distance that the lower roll support needs to be adjusted, the pitch of the trapezoidal thread of the lower adjusting nut 205 is designed to be 1 / 2 of the pitch of the trapezoidal thread of the upper adjusting nut 203. This design can achieve that under the drive of the same pressing mechanism, the distance of synchronous adjustment of the lower roll support is half of that of the upper roll support. The lower gland 206 is designed at the lowermost end of the tie rod assembly 2 to ensure the complete dust prevention and sealing of the whole mechanism.

[0023] In summary, for the unequal-gap adjusting device of the bloom mill provided by the present utility model, through four independent supports 101, four independent tie rod assemblies 2 are provided, and four independently arranged roll supports. The supports 101 and the roll supports are connected into one body through the tie rod assemblies 2, and the gap between the upper and lower roll supports can be adjusted up and down by rotating the tie rod 201 and cooperating with the threads of the upper adjusting nut 203 and the lower adjusting nut 205 to meet the working conditions of different specifications of the bloom mill. Moreover, it has strong anti-impact load performance, reliable work, compact structure and convenient installation and maintenance.

[0024] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-uniform gap adjustment device for a blanking machine, comprising a fixed frame (1), a tie rod assembly (2) and a roll stand (3), characterized in that: The roller seat (3) is composed of four independent supports, namely, an upper left roller seat, an upper right roller seat, a lower left roller seat and a lower right roller seat, which respectively support the upper roller and the lower roller; the tie rod assembly (2) connects the two together through a reserved position in the fixed frame (1) and the roller seat (3); the tie rod assembly (2) is provided with four independent groups, and each group of the tie rod assembly (2) includes a tie rod (201), an upper pressure cover (202), an upper adjustment nut (203), a sealing assembly (204), a lower adjustment nut (205), a lower sealing cover (206), a disc spring (207) and a fixing pin (208); the The pull rod (201) is connected to the upper and lower supports of the rolling mill seat (3) through the upper pressure cover (202) and the lower sealing cover (206), and the inner walls of the upper and lower supports are fixedly connected to the upper adjustment nut (203) and the lower adjustment nut (205) through the fixing pin (208); the corresponding position on the pull rod (201) is provided with a trapezoidal thread matching the upper adjustment nut (203) and the lower adjustment nut (205), and the rotation of the pull rod (201) drives the upper adjustment nut (203) and the lower adjustment nut (205) to move up and down, thereby realizing the adjustment of the gap between the upper and lower supports of the rolling mill seat (3).

2. The unequal-distance gap adjustment device for a blanking machine according to claim 1, characterized in that: The fixed frame (1) is a forging, and a set of fixed frame (1) comprises four independent brackets (101). The four independent brackets (101) are respectively arranged at the four corners of the blank opening machine and fixed to the foundation of the blank opening machine to serve as load-bearing components of the entire equipment.

3. The unequal-distance gap adjustment device of a blanking machine according to claim 2 is characterized in that: The bracket (101) is provided with an axle seat (102) connected to the pull rod (201), and the sealing assembly (204) is filled at the connection between the axle seat (102) and the pull rod (201).

4. The unequal-distance gap adjustment device for a blanking machine according to claim 1, characterized in that: The disc spring (207) is in a compressed state and is located between the upper pressure cover (202) and the upper adjustment nut (203), and is used to eliminate the gear gap between the upper adjustment nut (203) and the pull rod (201).

5. The unequal-distance gap adjustment device for a blanking machine according to claim 1, characterized in that: The top end of the pull rod (201) is a spline structure, and the rotation of the pull rod (201) is controlled by a pressing device matched with the top end.

6. The unequal-distance gap adjustment device of a blanking machine according to claim 1, characterized in that: The upper pressure cover (202) and the lower sealing cover (206) are fixed on the roller seat (3) by means of screws.

7. The unequal-distance gap adjustment device for a blanking machine according to claim 1, characterized in that: The pitch of the trapezoidal thread of the lower adjusting nut (205) is designed to be half of the pitch of the trapezoidal thread of the upper adjusting nut (203).

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