A seven-block connection structure for bending roller cylinders

Abstract

This utility model provides a seven-block connection structure for a bending roller cylinder, including a seven-block, a bending roller cylinder mechanism, and a sealing component. The bending roller cylinder mechanism includes a bending roller cylinder, and the seven-block includes a weighting part, a connecting part, and a bending part. The top of the bending roller cylinder has a connecting oil port. The sealing component is built into the top of the bending roller cylinder and sleeved outside the connecting oil port. The vertical projection of the center of mass of the seven-block to the top surface of the bending roller cylinder is located within the top surface area of ​​the bending roller cylinder. By using the weighting part to balance the protruding part of the seven-block and improving the structural form of the seven-block, its center of mass is ultimately controlled within the connection support surface with the bending roller cylinder. This counteracts unbalanced forces, eliminates unstable factors, minimizes longitudinal deflection load, removes deflection torque, ensures stable connection of the seven-block without increasing the sealing gap, and further enhances the sealing effect in conjunction with the sealing component, preventing oil leakage accidents.

Description

Technical Field

[0001] This utility model relates to the field of bending roller cylinder technology, and in particular to a seven-block connection structure for bending roller cylinder. Background Technology

[0002] The rolling mill bending cylinder is an important component of the rolling mill. Its function is to control the bending degree of the rolling roll, thereby ensuring the shape quality of the rolled plate. The 7-shaped block is the connecting part between the bending cylinder and the hydraulic hose. It is bolted to the top of the bending cylinder and the hydraulic oil is connected by the preload between the bolt and the seal.

[0003] However, in actual use, the 7-block seal is prone to oil leakage. The main reason is that the asymmetrical length-to-diameter ratio of the 7-block causes fatigue elongation of the distal bolt during vibration, leading to an increase in the sealing gap and thus causing oil leakage. Furthermore, due to the high-pressure system (270 bar), in addition to the rapid loss of many barrels of hydraulic oil, repairs are time-consuming and labor-intensive, and may even cause a major accident resulting in the interruption of continuous casting, with very serious consequences.

[0004] Therefore, it is necessary to propose a seven-block connection structure for the bending roller cylinder to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this utility model is to provide a seven-segment connection structure for bending roller cylinders, so as to solve the problem that the seven-segment blocks of bending roller cylinders in the prior art are prone to oil leakage due to loosening caused by the large length-to-diameter ratio.

[0006] To achieve the above objectives, this utility model provides a seven-block connection structure for a bending roller cylinder, including a seven-block, a bending roller cylinder mechanism, and a sealing assembly; wherein,

[0007] The bending roller cylinder mechanism includes a bending roller cylinder, and the seven-shaped block includes a weighting part, a connecting part, and a bending part. The connecting part is connected to the top of the bending roller cylinder, and the weighting part and the bending part are respectively connected to the two ends of the connecting part. The bending part has an oil inlet and an oil outlet. The top of the bending roller cylinder has a connecting oil port, and the sealing assembly is built into the top of the bending roller cylinder and sleeved outside the connecting oil port.

[0008] The vertical projection of the centroid of the seven-character block to the top surface of the bending roller cylinder is located within the range of the top surface of the bending roller cylinder.

[0009] Preferably, the center of mass of the seven-character block and the central axis of the bending roller cylinder are located on the same transverse extension line.

[0010] Preferably, the bending roller cylinder mechanism further includes a bending roller cylinder housing, and the bending roller cylinder is built into the bending roller cylinder housing and is vertically movable.

[0011] Preferably, the sealing assembly includes an inner sealing ring, which is built into the top of the bending roller cylinder and sleeved on the outside of the connecting oil port.

[0012] Preferably, the sealing assembly further includes an outer sealing ring, which is built into the top of the bending roller cylinder and sleeved outside the inner sealing ring.

[0013] Preferably, it further includes a stop block, which is connected to the top of the bending roller cylinder housing and is spaced apart below the seven-character block.

[0014] Preferably, the top of the weighted part extends upward from the connecting part, and the bottom of the weighted part extends downward from the connecting part along the side laterally away from the bent part.

[0015] Preferably, the oil inlet is located on the lateral protruding sidewall of the bend, and the oil outlet is located on the top surface of the bend.

[0016] Preferably, the lateral protruding surface of the bending portion is flush with one side wall of the bending roller cylinder housing.

[0017] Preferably, the connecting part is bolted to the top of the bending roller cylinder.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model provides a seven-block connection structure for a bending roller cylinder, including a seven-block, a bending roller cylinder mechanism, and a sealing component. The bending roller cylinder mechanism includes a bending roller cylinder, and the seven-block includes a weighting part, a connecting part, and a bending part. The connecting part is connected to the top of the bending roller cylinder, and the weighting part and the bending part are respectively connected to the two ends of the connecting part. The bending part has an oil inlet and an oil outlet. The top of the bending roller cylinder has a connecting oil port. The sealing component is built into the top of the bending roller cylinder and sleeved outside the connecting oil port. The vertical projection of the center of mass of the seven-block to the top surface of the bending roller cylinder is located within the top surface area of ​​the bending roller cylinder. In this way, the weighting part balances the outward convex part of the seven-block and improves the structural form of the seven-block, ultimately controlling its center of mass within the connection support surface with the bending roller cylinder. This can offset unbalanced forces, eliminate unstable factors, minimize longitudinal deflection load, eliminate deflection torque, ensure the stability of the seven-block connection without the phenomenon of increased sealing gap, and at the same time, the sealing component further enhances the sealing effect and avoids oil leakage accidents. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure in one embodiment of the present utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the overall structure from another perspective in one embodiment of the present utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of the overall structure in one embodiment of the present invention;

[0024] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0025] Figure 5 This is a plan view of the overall structure in one embodiment of the present invention.

[0026] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0027] Explanation of icon numbers:

[0028] 10. Seven-shaped block; 110. Weighting part; 120. Connecting part; 130. Bending part; 131. Oil inlet; 132. Oil outlet; 140. Center of mass; 20. Bending roller cylinder mechanism; 210. Bending roller cylinder; 211. Connecting oil port; 220. Bending roller cylinder housing; 221. Stop block; 30. Sealing assembly; 310. Inner sealing ring; 320. Outer sealing ring. Detailed Implementation

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] Please see the appendix Figure 1-5 This utility model provides an embodiment of a bending roller cylinder seven-block 10 connection structure, including a seven-block 10, a bending roller cylinder mechanism 20, and a sealing assembly 30. First, it should be noted that the lateral direction in this application refers to the width direction of the seven-block 10. Unlike existing seven-block seals which are prone to oil leakage, primarily due to the asymmetrical aspect ratio of the seven-block causing fatigue elongation of the distal bolts during vibration, leading to increased sealing gaps and oil leakage accidents, this presents a solution to the aforementioned defects in the prior art by providing a bending roller cylinder seven-block connection structure, as detailed below:

[0034] The bending roller cylinder mechanism 20 includes a bending roller cylinder 210. The seven-shaped block 10 includes a weighting part 110, a connecting part 120, and a bending part 130. The connecting part 120 is connected to the top of the bending roller cylinder 210. The weighting part 110 and the bending part 130 are respectively connected to the two ends of the connecting part 120. The bending part 130 has an oil inlet 131 and an oil outlet 132. The top of the bending roller cylinder 210 has a connecting oil port 211. The sealing assembly 30 is built into the top of the bending roller cylinder 210 and sleeved on the connecting oil port 211. The vertical projection of the center of mass 140 of the seven-shaped block 10 to the top surface of the bending roller cylinder 210 is located within the range of the top surface of the bending roller cylinder 210.

[0035] Specifically, the swivel block connection structure of the bending roller cylinder in this application includes a swivel block 10, a bending roller cylinder mechanism 20, and a sealing assembly 30. The bending roller cylinder mechanism 20 mainly includes a bending roller cylinder 210, and also includes a bending roller cylinder housing 220. The bending roller cylinder housing 220 is used to install the bending roller cylinder 210, so that the bending roller cylinder 210 is vertically movably connected to the bending roller cylinder housing 220. Usually, the swivel block 10 is an asymmetrical component with a large length-to-diameter ratio, which can easily cause the center of mass 140 to shift outside the connection surface. With the increase of usage time and under the action of vibration, the sealing gap will increase. The swivel block 10 in this application includes a weighting part 110, a connecting part 120, and a bending part 130 to change the structural form of the swivel block 10.

[0036] The connecting part 120, as the central part of the entire swivel block 10, is used to connect with the bending roller cylinder 210. Preferably, a bolt connection is used for a secure connection and to facilitate later disassembly and replacement. It is worth noting that the connecting bolts can be produced using a forging process, and the thread machining should include a stress-relieving process to prevent fatigue fracture of the threaded portion. The weighting part 110 and the bending part 130 are respectively connected to both ends of the connecting part 120. Specifically, the bending part 130 is an oil passage section, used for oil inlet and outlet. Therefore, the oil inlet 131 and oil outlet 132 are both located at the bending part 130, and the oil pipe channel is built into the swivel block 10, which will not be elaborated here. The weighting part 110 in this application, compared to the swivel block 10 in the prior art, is longer along the longitudinal direction (length of the swivel block 10). The weighted part 110 extends away from the end of the bending part 130 and has a greater thickness to balance the outward bending structure of the bending part 130, thereby removing the deflection moment and controlling the position of the center of mass 140. Thus, when processing the spherical block 10, the outward floating position of the bending part 130 can be appropriately shortened. Combined with the extension of the weighted part 110 to reduce the large length-to-diameter ratio structure of the traditional spherical block 10, the vertical projection of the center of mass 140 of the spherical block 10 to the top surface of the bending roller cylinder 210 falls within the top surface area of ​​the bending roller cylinder 210. This means that the center of mass 140 of the entire spherical block 10 is controlled within the connection support surface with the bending roller cylinder 210, thereby minimizing the longitudinal deflection load and preventing the center of mass 140 from floating outside the bending roller cylinder 210. For example, when the entire component is as shown in the attached... Figure 1 When in normal use and placement, the top surface of the bending roller cylinder 210 is horizontal, that is, the vertical projection of the centroid 140 of the seven-shaped block 10 to the horizontal plane where the top of the bending roller cylinder 210 is located; the position of the centroid 140 in a preferred embodiment of this application can be referred to the attached figure. Figure 5 As shown in the image.

[0037] Furthermore, the sealing component 30 is used to improve the sealing performance. It is understood that the oil pipe channel of the bending roller cylinder 210 is directly connected to the oil pipe channel of the seven-shaped block 10. Therefore, a connecting oil port 211 is provided at the top of the bending roller cylinder 210. In order to avoid oil leakage at this connecting oil port 211, the sealing component 30 can be built in to enhance the sealing performance at this connecting oil port 211.

[0038] In a preferred embodiment of this utility model, the centroid 140 of the seven-character block 10 and the central axis of the bending roller cylinder 210 are located on the same transverse extension line.

[0039] It should be noted that this allows the seven-shaped block 10 of this application to have a similar symmetrical structure along the central axis of the bending roller cylinder 210, so as to form a better sealing structure. The longitudinal deflection load and deflection torque are smaller, thereby enhancing the connection stability of the seven-shaped block 10, that is, ensuring the enhanced sealing performance.

[0040] In a preferred embodiment of the present invention, the sealing assembly 30 includes an inner sealing ring 310, which is built into the top of the bending roller cylinder 210 and sleeved on the outside of the connecting oil port 211.

[0041] It is worth noting that the inner sealing ring 310, as the main seal, bears the main pressure impact and can preferentially block the leakage of internal media. It can be made of high-hardness material (such as fluororubber, hardness 70-90 Shore A) and has strong extrusion resistance.

[0042] In a preferred embodiment of the present invention, the sealing assembly 30 further includes an outer sealing ring 320, which is built into the top of the bending roller cylinder 210 and sleeved on the outside of the inner sealing ring 310.

[0043] It is worth noting that the outer sealing ring 320 serves as a backup seal to prevent leakage after the main seal fails. It can be made of a material with better elasticity (such as silicone, with a hardness of 50-70 Shore A).

[0044] Furthermore, it also includes a stop block 221, which is connected to the top of the bending roller cylinder housing 220 and is spaced apart below the seven-character block 10.

[0045] It should be noted that the stop block 221 is used to control the retraction of the bending roller cylinder 210. It is understood that the bending roller cylinder 210 usually acts between the upper and lower working rollers. Sometimes its position may move up and down. In order to avoid interfering with the surrounding equipment, a stop block 221 can be set on the top of the bending roller cylinder housing 220. In this way, when up and down movement occurs, the seven-shaped block 10 will be lowered and abut against the stop block 221, thereby achieving the stopping effect and preventing the entire bending roller cylinder 210 from sliding down further.

[0046] Furthermore, the top of the weighting part 110 extends upward from the connecting part 120, and the bottom of the weighting part 110 extends downward from the connecting part 120 along the side laterally away from the bending part 130.

[0047] It should be understood that the purpose of counterweight is achieved by extending upward and downward respectively, while the downward part is mainly concentrated on the side away from the bending part 130 in the lateral direction, so as to balance the lateral protrusion of the bending part 130, remove the deflection torque, and ultimately facilitate the control of the position of the center of mass 140.

[0048] Furthermore, the oil inlet 131 is disposed on the lateral protruding sidewall of the bent portion 130, and the oil outlet 132 is disposed on the top surface of the bent portion 130.

[0049] It should be noted that in the prior art, the oil inlet 131 and oil outlet 132 of the seven-shaped block 10 are usually located on the top surface. However, in this application, in order to control the position of the centroid 140, the protruding length of the bent part 130 will be shortened, which will reduce the top surface space of the bent part 130. Therefore, considering the suitable position distribution, the oil inlet 131 can be located on the lateral protruding side wall of the bent part 130, while the oil outlet 132 is still located on the top surface of the bent part 130.

[0050] Furthermore, the lateral protruding surface of the bending portion 130 is flush with one lateral side wall of the bending roller cylinder housing 220.

[0051] It should be noted that by significantly shortening the lateral protrusion of the bending portion 130 and minimizing any remaining lateral outward allowance, the range of the center of mass 140 can be better controlled, thereby reducing the longitudinal deflection load. In other embodiments, the lateral protrusion of the bending portion 130 can be located near a side wall of the bending roller cylinder housing 220 in the lateral direction. The specific location can be set by those skilled in the art according to actual needs.

[0052] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A seven-block connection structure for a bending roller cylinder, characterized in that, Includes a seven-shaped block, a bending roller cylinder mechanism, and a sealing assembly; among which, The bending roller cylinder mechanism includes a bending roller cylinder, and the seven-shaped block includes a weighting part, a connecting part, and a bending part. The connecting part is connected to the top of the bending roller cylinder, and the weighting part and the bending part are respectively connected to the two ends of the connecting part. The bending part has an oil inlet and an oil outlet. The top of the bending roller cylinder has a connecting oil port, and the sealing assembly is built into the top of the bending roller cylinder and sleeved outside the connecting oil port. The vertical projection of the centroid of the seven-character block to the top surface of the bending roller cylinder is located within the range of the top surface of the bending roller cylinder.

2. The seven-block connection structure for the bending roller cylinder according to claim 1, characterized in that, The centroid of the seven-character block and the central axis of the bending roller cylinder are located on the same transverse extension line.

3. The seven-block connection structure of the bending roller cylinder according to claim 2, characterized in that, The bending roller cylinder mechanism also includes a bending roller cylinder housing, in which the bending roller cylinder is built and vertically movable.

4. The seven-block connection structure of the bending roller cylinder according to claim 1, characterized in that, The sealing assembly includes an inner sealing ring, which is built into the top of the bending roller cylinder and sleeved on the outside of the connecting oil port.

5. The seven-block connection structure of the bending roller cylinder according to claim 4, characterized in that, The sealing assembly also includes an outer sealing ring, which is built into the top of the bending roller cylinder and sleeved outside the inner sealing ring.

6. The seven-block connection structure of the bending roller cylinder according to claim 3, characterized in that, It also includes a stop block, which is connected to the top of the bending roller cylinder housing and is spaced apart below the seven-character block.

7. The seven-block connection structure of the bending roller cylinder according to claim 6, characterized in that, The top of the weighting part extends upward from the connecting part, and the bottom of the weighting part extends downward from the connecting part along the side away from the bending part.

8. The seven-block connection structure of the bending roller cylinder according to claim 3, characterized in that, The oil inlet is located on the lateral protruding sidewall of the bend, and the oil outlet is located on the top surface of the bend.

9. The seven-block connection structure of the bending roller cylinder according to claim 8, characterized in that, The lateral protruding surface of the bending section is flush with one side wall of the bending roller cylinder housing.

10. The seven-block connection structure for the bending roller cylinder according to claim 1, characterized in that, The connecting part is bolted to the top of the bending roller cylinder.

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