Middle hanging synchronous connecting rod mechanism

Abstract

The utility model relates to a middle hanging synchronous connecting rod mechanism which comprises a cross rod, a first hanging assembly and a second hanging assembly, the cross rod is arranged between the first hanging assembly and the second hanging assembly, the first hanging assembly comprises a first hanging oil cylinder, a first push-pull rod and a first inclined rod, and the second hanging assembly comprises a second hanging oil cylinder, a second push-pull rod and a second inclined rod. The output end of the first hanging oil cylinder is vertically downward, the upper end of the first push-pull rod is fixedly connected with the output end of the first hanging oil cylinder, the lower end of the first push-pull rod is connected with one end of the first inclined rod, the other end of the first inclined rod is connected with one end of the transverse rod, the transverse rod is horizontally arranged, and the first inclined rod is fixedly connected with the output end of the first hanging oil cylinder. The second hanging assembly comprises a second hanging oil cylinder, a second push-pull rod and a second inclined rod. The second hanging assembly and the first hanging assembly are symmetrically arranged with the central axis of the cross rod as the symmetry axis.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling mill technology, and in particular to an intermediate suspension synchronous linkage mechanism. Background Technology

[0002] The 20-roll cold rolling mill is a high-end piece of equipment in the metallurgical cold-rolled strip steel industry. Due to its multiple means of adjusting the strip shape and its ability to roll extremely thin strips, it is an indispensable piece of equipment in aerospace, civilian, and chip industries. The thinnest strip it can roll is 0.005mm. It can roll stainless steel, alloy steel, titanium alloy, silicon steel, carbon steel, and non-ferrous metals. It can achieve high rolling force and small roll diameter rolling, and has multiple strip shape adjustment means such as strip crown adjustment and an intermediate roll shifting.

[0003] Traditional pull-out roller structure uses a hydraulic cylinder and connecting rod to hold an intermediate roller. During roller changing, the roller is lifted by the hydraulic cylinder. However, the improved push-type structure cannot directly set a connecting rod on an intermediate roller due to structural limitations. Therefore, it is necessary to prevent the intermediate roller from falling during roller changing.

[0004] Therefore, a mid-suspension synchronous linkage mechanism is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing an intermediate suspension synchronous linkage mechanism.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A mid-suspension synchronous linkage mechanism includes a crossbar, a first suspension assembly, and a second suspension assembly. The crossbar is disposed between the first suspension assembly and the second suspension assembly. The first suspension assembly includes a first suspension cylinder, a first push-pull rod, and a first diagonal rod. The output end of the first suspension cylinder is vertically downward. The upper end of the first push-pull rod is fixedly connected to the output end of the first suspension cylinder. The lower end of the first push-pull rod is connected to one end of the first diagonal rod. The other end of the first diagonal rod is connected to one end of the crossbar. The crossbar is horizontally disposed. The second suspension assembly includes a second suspension cylinder, a second push-pull rod, and a second diagonal rod. The second suspension assembly and the first suspension assembly are symmetrically disposed about the central axis of the crossbar.

[0007] Preferably, in the above-mentioned intermediate suspension synchronous linkage mechanism, a transverse tie rod is fixedly connected between the first push-pull rod and the second push-pull rod.

[0008] Preferably, in the above-mentioned intermediate suspension synchronous linkage mechanism, an upper synchronous linkage and a lower synchronous linkage are fixedly connected between the first push-pull rod and the second push-pull rod. The upper synchronous linkage, the transverse tie rod, and the first push-pull rod form a triangle, and the transverse tie rod, the lower synchronous linkage, and the second push-pull rod form a triangle.

[0009] Preferably, in the above-mentioned intermediate suspension synchronous linkage mechanism, the crossbar is provided with two roller seats, and the top of the roller seats is concave arc-shaped.

[0010] Preferably, in the above-mentioned intermediate suspension synchronous linkage mechanism, guide sleeves are provided on the sides of the first push-pull rod and the second push-pull rod that are far apart from each other, and the first push-pull rod and the second push-pull rod are slidably connected to the guide sleeves respectively.

[0011] Preferably, in the above-mentioned intermediate suspension synchronous linkage mechanism, the guide sleeve has an axially penetrating groove inside, the cross-section of the groove is arc-shaped, the groove is adapted to the first push-pull rod and the second push-pull rod, and a notch is provided on one side of the cross-section of the groove, the notch being located on the side where the first push-pull rod and the second push-pull rod are close to each other.

[0012] The beneficial effects of this utility model are as follows: During roller changing, the first and second hanging cylinders pull upwards, causing the first and second push-pull rods to move upwards, which in turn causes the first and second inclined rods and the cross rod to move upwards, thereby lifting the two intermediate rollers and preventing them from falling during the roller changing process. The two triangular structures formed by the upper synchronous connecting rod, the transverse connecting rod, and the lower synchronous connecting rod ensure the stability of the first and second push-pull rods during synchronous operation, keeping them parallel at all times. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure at point AA;

[0015] Figure 3 This is a schematic diagram of the roller holder structure.

[0016] The attached diagram lists the components represented by each number as follows:

[0017] 1. First hanging cylinder; 2. First push-pull rod; 3. First diagonal rod; 4. Horizontal rod; 5. Second hanging cylinder; 6. Second push-pull rod; 7. Second diagonal rod; 8. Guide sleeve; 9. Upper synchronous connecting rod; 10. Horizontal tie rod; 11. Lower synchronous connecting rod; 12. Intermediate roller; 13. Roller seat. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] like Figures 1-3 As shown, a mid-suspension synchronous linkage mechanism includes a crossbar 4, a first suspension assembly, and a second suspension assembly. The crossbar 4 is positioned between the first and second suspension assemblies. The crossbar 4 is horizontally positioned. The first suspension assembly includes a first suspension cylinder 1, a first push-pull rod 2, and a first diagonal rod 3; the second suspension assembly includes a second suspension cylinder 5, a second push-pull rod 6, and a second diagonal rod 7; the second suspension assembly and the first suspension assembly are symmetrically arranged about the central axis of the crossbar 4.

[0020] The connection structure of the first hanging assembly is described in detail below. Since the connection structure of the second hanging assembly is the same as that of the first hanging assembly, it will not be described in detail here.

[0021] The output end of the first hanging cylinder 1 is vertically downward. The upper end of the first push-pull rod 2 is fixedly connected to the output end of the first hanging cylinder 1, and the lower end of the first push-pull rod 2 is fixedly connected to one end of the first inclined rod 3. The other end of the first inclined rod 3 is fixedly connected to one end of the horizontal rod 4, and the other end of the horizontal rod 4 is fixedly connected to one end of the second inclined rod 7. When the first hanging cylinder 1 and the second hanging cylinder 5 are pulled upward, they drive the first push-pull rod 2 and the second push-pull rod 6 to move upward, which in turn drives the first inclined rod 3, the second inclined rod 7, and the horizontal rod 4 to move upward, thereby lifting the two intermediate rollers 12.

[0022] To ensure the synchronous operation of the two lifting cylinders and the first push-pull rod 2 and the second push-pull rod 6, a transverse tie rod 10 is fixedly connected between them. Furthermore, to ensure stability during synchronization, an upper synchronous connecting rod 9 and a lower synchronous connecting rod 11 are also fixedly connected between them. The upper synchronous connecting rod 9, the transverse tie rod 10, and the first push-pull rod 2 form a triangle, as do the transverse tie rod 10, the lower synchronous connecting rod 11, and the second push-pull rod 6. Because triangles are stable, these two triangular structures ensure the stability of the synchronous operation of the first push-pull rod 2 and the second push-pull rod 6, keeping them always parallel.

[0023] like Figure 1 , Figure 3 As shown, two roller seats 13 are provided on the crossbar 4. The positions of the two roller seats 13 correspond to the two intermediate rollers 12. The top of the roller seats 13 is concave arc-shaped. The arrangement of the roller seats 13 ensures the lateral stability of the intermediate rollers 12 and prevents them from swaying left and right.

[0024] Guide sleeves 8 are provided on the opposite sides of the first push-pull rod 2 and the second push-pull rod 6. The guide sleeves 8 are fixedly installed, and the first push-pull rod 2 and the second push-pull rod 6 are slidably connected to the guide sleeves 8. A groove runs axially through the inside of the guide sleeve 8. The groove has an arc-shaped cross-section and is adapted to the first push-pull rod 2 and the second push-pull rod 6. A notch is provided on one side of the cross-section of the groove. The notch is located on the side where the first push-pull rod 2 and the second push-pull rod 6 are close to each other to prevent the first push-pull rod 2 and the second push-pull rod 6 from interfering with or being blocked by the upper synchronous connecting rod 9, the transverse tie rod 10, and the lower synchronous connecting rod 11 when sliding in the groove.

[0025] Working principle: When the first hanging cylinder 1 and the second hanging cylinder 5 are pulled upward, they drive the first push-pull rod 2 and the second push-pull rod 6 to move upward, which in turn drives the first diagonal rod 3, the second diagonal rod 7, and the horizontal rod 4 to move upward, thereby lifting the two intermediate rollers 12. The two triangular structures formed by the upper synchronous connecting rod 9, the horizontal tie rod 10, and the lower synchronous connecting rod 11 ensure the stability of the synchronous operation of the first push-pull rod 2 and the second push-pull rod 6, so that the first push-pull rod 2 and the second push-pull rod 6 are always parallel.

[0026] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A mid-suspension synchronous linkage mechanism, characterized in that: The system includes a crossbar (4), a first hanging assembly, and a second hanging assembly. The crossbar (4) is positioned between the first hanging assembly and the second hanging assembly. The first hanging assembly includes a first hanging cylinder (1), a first push-pull rod (2), and a first diagonal rod (3). The output end of the first hanging cylinder (1) is vertically downward. The upper end of the first push-pull rod (2) is fixedly connected to the output end of the first hanging cylinder (1). The lower end of the first push-pull rod (2) is connected to one end of the first diagonal rod (3). The other end of the first diagonal rod (3) is connected to one end of the crossbar (4). The crossbar (4) is horizontally positioned. The second hanging assembly includes a second hanging cylinder (5), a second push-pull rod (6), and a second diagonal rod (7). The second hanging assembly and the first hanging assembly are symmetrically positioned with the central axis of the crossbar (4) as the axis of symmetry.

2. The intermediate suspension synchronous linkage mechanism according to claim 1, characterized in that: A transverse tie rod (10) is fixedly connected between the first push-pull rod (2) and the second push-pull rod (6).

3. The intermediate suspension synchronous linkage mechanism according to claim 2, characterized in that: An upper synchronous link (9) and a lower synchronous link (11) are fixedly connected between the first push-pull rod (2) and the second push-pull rod (6). The upper synchronous link (9), the transverse pull rod (10), and the first push-pull rod (2) form a triangle, and the transverse pull rod (10), the lower synchronous link (11), and the second push-pull rod (6) form a triangle.

4. The intermediate suspension synchronous linkage mechanism according to claim 1, characterized in that: Two roller seats (13) are provided on the crossbar (4), and the top of the roller seat (13) is concave arc shape.

5. The intermediate suspension synchronous linkage mechanism according to claim 1, characterized in that: The first push-pull rod (2) and the second push-pull rod (6) are each provided with a guide sleeve (8) on the side away from each other, and the first push-pull rod (2) and the second push-pull rod (6) are slidably connected to the guide sleeve (8).

6. The intermediate suspension synchronous linkage mechanism according to claim 5, characterized in that: The guide sleeve (8) has an axially penetrating groove inside. The cross-section of the groove is arc-shaped. The groove is adapted to the first push-pull rod (2) and the second push-pull rod (6). A notch is provided on one side of the cross-section of the groove. The notch is located on the side where the first push-pull rod (2) and the second push-pull rod (6) are close to each other.

Images