Four-side hydraulic correction device for preventing rotation of oil cylinder and pressure head

Abstract

The utility model discloses a four-side hydraulic correction oil cylinder and pressure head rotation prevention device which comprises a first base and a second base, the left side of the first base is provided with the second base which is of a symmetrical structure, and a hydraulic cylinder is fixed to the rear side between the first base and the second base. The left end of the hydraulic cylinder is embedded in a mounting groove formed in the left end of the second base and fixed, the hydraulic cylinder is connected to a connector through a piston rod, a pressing head is arranged on the left side of the connector, and a guide sleeve is arranged between the first base and the second base and located in front of the hydraulic cylinder. The guide sleeve is arranged in front of the hydraulic cylinder, the guide rod in sliding connection is arranged in the guide sleeve, the guide sleeve and the guide rod are both of rectangular structures, the left end of the guide rod is connected with the connector at the left end of the piston rod through the connecting plate, and when the hydraulic cylinder works, the stroke of the piston is measured; the guide rod is ensured to move between the guide sleeves, and rotation of the piston rod and the cylinder barrel is controlled through the guide device.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to a four-sided hydraulic straightening anti-rotation cylinder and pressure head rotation device. Background Technology

[0002] Currently, in the cold-rolling process of heavy rails in metallurgical steel rolling mills, a problem arises when using four-sided hydraulic straighteners for pressing steel. Because there is no limit control on the piston rod relative to the cylinder barrel, the piston rod rotates under hydraulic impact, causing the pressure head fixed to the piston rod to rotate as well. Since the pressure head is made according to the shape of the heavy rail, this rotation prevents alignment with the rail head and bottom, resulting in the twisting of hundreds of meters of heavy rail, rendering it unusable. Previously, when the rotation prevented pressing, the hydraulic system needed to be shut off during production, and jacks used to slowly adjust it back to its original position. However, this rotation would recur. Therefore, this invention provides a four-sided hydraulic straightener device to prevent the rotation of the cylinder and pressure head, thus solving the above problems. Utility Model Content

[0003] The purpose of this utility model is to provide a four-sided hydraulic straightening anti-rotation cylinder and pressure head device to solve the problems in the background art mentioned above.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a four-sided hydraulic straightening anti-rotation cylinder and pressure head device, comprising a first base and a second base, a second base with a symmetrical structure is provided on the left side of the first base, a hydraulic cylinder is fixed on the rear side between the first base and the second base, the left end of the hydraulic cylinder is embedded in the mounting groove opened on the left end of the second base and fixed, the hydraulic cylinder is connected to the connector through a piston rod, and a pressure head is provided on the left side of the connector;

[0005] A guide sleeve is provided between the first base and the second base in front of the hydraulic cylinder. The guide sleeve has a hollow structure and is rectangular in shape. Its left end is embedded in a slot on the second base. A guide rod is provided inside the guide sleeve and is slidably connected. The left end of the guide rod is protruding.

[0006] A connecting plate is welded to the front end of the connector, and the right end of the connecting plate is connected to the guide rod.

[0007] As a preferred embodiment of this utility model, both the outer sides of the bottom ends of the first base and the second base are fixed by bolts.

[0008] In a preferred embodiment of this invention, the left end face of the hydraulic cylinder is flush with the left end face of the mounting groove, and the hydraulic cylinder is electrically connected to the solenoid valve.

[0009] In a preferred embodiment of this invention, the left end face of the guide sleeve is flush with the left end face of the groove.

[0010] In a preferred embodiment of this invention, the length of the guide rod is greater than the length of the piston rod.

[0011] In a preferred embodiment of this invention, the bolt post welded to the left end of the guide rod is located inside the through hole on the connecting plate, and the nut threaded onto the bolt post is located on the left side of the connecting plate.

[0012] In a preferred embodiment of this invention, the diameter of the through hole is greater than the diameter of the bolt post, and the diameter of the through hole is less than the outer diameter of the nut.

[0013] In a preferred embodiment of this invention, a gap is provided between the connecting plate and the pressure head.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: a guide sleeve is provided at the front position of the hydraulic cylinder, and a guide rod is provided in the guide sleeve for sliding connection. Both the guide sleeve and the guide rod are rectangular structures. The left end of the guide rod is connected to the connector at the left end of the piston rod through a connecting plate. When the hydraulic cylinder is working, the piston stroke is measured to ensure that the guide rod moves between the guide sleeves. The rotation of the piston rod and the cylinder is controlled by the guiding device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of the hydraulic cylinder, base, and guide sleeve of this utility model.

[0017] Figure 3 This is a top view of the overall structure of this utility model.

[0018] In the diagram: 1. First base; 2. Hydraulic cylinder; 3. Second base; 4. Piston rod; 5. Connector; 6. Pressure head; 7. Guide sleeve; 8. Guide rod; 9. Connecting plate; 10. Through hole; 11. Mounting groove; 12. Groove; 13. Bolt post; 14. Nut. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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 be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.

[0022] Example: Figure 1-3 The present invention provides a technical solution: including a first base 1 and a second base 3. The second base 3 with a symmetrical structure is provided on the left side of the first base 1. A hydraulic cylinder 2 is fixed between the first base 1 and the second base 3. The left end of the hydraulic cylinder 2 is embedded in the mounting groove 11 opened on the left end of the second base 3 and fixed. The hydraulic cylinder 2 is connected to the connector 5 through the piston rod 4, and a pressure head 6 is provided on the left side of the connector 5.

[0023] A guide sleeve 7 is provided between the first base 1 and the second base 3 in front of the hydraulic cylinder 2. The guide sleeve 7 has a hollow structure and is rectangular. Its left end is embedded in the slot 12 opened on the second base 3. A guide rod 8 is provided inside the guide sleeve 7 and is slidably connected. The left end of the guide rod 8 is protruding.

[0024] A connecting plate 9 is welded to the front end of the connector 5, and the right end of the connecting plate 9 is connected to the guide rod 8.

[0025] Both the first base 1 and the second base 3 are fixed to the outer sides of their bottom ends with bolts.

[0026] The left end face of hydraulic cylinder 2 is flush with the left end face of mounting groove 11, and hydraulic cylinder 2 is electrically connected to solenoid valve.

[0027] The left end face of guide sleeve 7 is flush with the left end face of groove 12.

[0028] The length of guide rod 8 is greater than the length of piston rod 4.

[0029] The bolt post 13 welded to the left end of the guide rod 8 is located in the through hole 10 on the connecting plate 9, and the nut 14 threaded on the bolt post 13 is located on the left side of the connecting plate 9.

[0030] The diameter of the through hole 10 is greater than the diameter of the bolt post 13, and the diameter of the through hole 10 is less than the outer diameter of the nut 14.

[0031] There is a gap between the connecting plate 9 and the pressure head 6.

[0032] Working principle:

[0033] In use, the hydraulic cylinder 2 is electrically connected to the solenoid valve, and the extension and retraction length can be controlled at will. During installation, the first base 1 and the second base 3 are fixed to the operating table with bolts. When the hydraulic cylinder 2 and the piston rod 4 are in use, the guide rod 8 slides out from the guide sleeve 7 and extends and retracts with the piston rod 4. During the extension and retraction process, the piston stroke is measured to ensure that the guide rod moves between the guide sleeves. The rotation of the piston rod and the cylinder is controlled by the guide device.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A four-sided hydraulic straightening anti-rotation cylinder and pressure head device, comprising a first base (1) and a second base (3), characterized in that: The first base (1) has a second base (3) with a symmetrical structure on the left side. A hydraulic cylinder (2) is fixed between the first base (1) and the second base (3) on the rear side. The left end of the hydraulic cylinder (2) is embedded in the mounting groove (11) opened on the left end of the second base (3) and fixed. The hydraulic cylinder (2) is connected to the connector (5) through the piston rod (4), and a pressure head (6) is provided on the left side of the connector (5). A guide sleeve (7) is provided between the first base (1) and the second base (3) in front of the hydraulic cylinder (2), and the guide sleeve (7) has a hollow structure inside. The guide sleeve (7) has a rectangular structure and its left end is embedded in the slot (12) opened on the second base (3). A guide rod (8) is provided inside the guide sleeve (7) and its left end has a protruding structure. A connecting plate (9) is welded to the front end of the connector (5), and the right end of the connecting plate (9) is connected to the guide rod (8).

2. The four-side hydraulic straightening and preventing oil cylinder and pressure head from rotating device according to claim 1, characterized in that: The bottom outer sides of the first base (1) and the second base (3) are both fixed by bolts.

3. The four-side hydraulic straightening and preventing oil cylinder and pressure head from rotating device according to claim 1, characterized in that: The left end face of the hydraulic cylinder (2) is flush with the left end face of the mounting groove (11), and the hydraulic cylinder (2) is electrically connected to the solenoid valve.

4. The four-side hydraulic straightening and preventing oil cylinder and pressure head from rotating device according to claim 1, characterized in that: The left end face of the guide sleeve (7) is flush with the left end face of the groove (12).

5. The four-side hydraulic straightening and anti-rotation device of claim 1, wherein: The length of the guide rod (8) is greater than the length of the piston rod (4).

6. The four-side hydraulic straightening and anti-rotation device of claim 1, wherein: The bolt post (13) welded to the left end of the guide rod (8) is located in the through hole (10) on the connecting plate (9), and the nut (14) threaded on the bolt post (13) is located on the left side of the connecting plate (9).

7. The four-side hydraulic straightening and anti-rotation device of claim 6, wherein: The diameter of the through hole (10) is greater than the diameter of the bolt post (13), and the diameter of the through hole (10) is less than the outer diameter of the nut (14).

8. The four-side hydraulic straightening and anti-rotation device of claim 1, wherein: There is a gap between the connecting plate (9) and the pressure head (6).

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