A servo hydraulic cylinder pressure containment device

Abstract

The application provides a kind of servo hydraulic cylinder pressure-bearing device, including sleeve, the top mill base of the sleeve is fixedly connected;The bottom of the sleeve is detachably connected with the cylinder body of hydraulic cylinder;The outside of the sleeve is provided with pressure-bearing pad, the bottom of the pressure-bearing pad is attached with the top surface of the cylinder body, and the top of the pressure-bearing pad has a top assembly for pressing the pressure-bearing pad downward.This application bears the reaction force of servo hydraulic cylinder during the rolling process through the sleeve and the pressure-bearing pad, and the pressure-bearing pad is pressed downward to the cylinder body under the action of the top assembly, bears more reaction force, effectively protects the sleeve, prevents the sleeve from deformation, greatly improves the service life of the pressure-bearing device, and reduces the maintenance and replacement cost of the pressure-bearing device.

Description

Technical Field

[0001] This invention belongs to the field of industrial manufacturing, and in particular relates to a servo hydraulic cylinder pressure-bearing device. Background Technology

[0002] In recent years, my country's steel industry has been developing rapidly with the continuous progress of steel rolling production technology and the constant upgrading of steel rolling equipment. In vertical rolling mill steel rolling production, AGC servo hydraulic cylinder is the main device for controlling the quality of steel plates and ensuring thickness in the steel rolling production line.

[0003] During the rolling process, most AGC servo hydraulic cylinders are hoisted, and the pressure-bearing device is basically just a column. During the rolling process, the column is very easy to deform. At this time, the column needs to be straightened and repaired. The time after straightening is also very limited, and the column still needs to be replaced. However, since the top of the column is mostly welded and fixed to the rolling mill stand, the replacement is relatively laborious and the replacement efficiency is low. Summary of the Invention

[0004] In view of this, the present invention aims to provide a servo hydraulic cylinder pressure-bearing device in order to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A servo hydraulic cylinder pressure-bearing device includes a sleeve, the top of which is fixedly connected to a mill base; the bottom of which is detachably connected to the cylinder body of the hydraulic cylinder.

[0007] A pressure-bearing pad is fitted on the outer side of the sleeve. The bottom of the pressure-bearing pad is fitted against the top surface of the cylinder. The top of the pressure-bearing pad has a clamping component for pressing the pressure-bearing pad downwards.

[0008] Furthermore, a threaded sleeve is fitted onto the outer bottom of the sleeve, and the threaded sleeve is rotatably connected to the sleeve.

[0009] The top of the cylinder is fixedly provided with a threaded post corresponding to the threaded sleeve;

[0010] The sleeve and the threaded post are connected by the threaded sleeve.

[0011] Furthermore, the pressure pad includes a pressure block and a pressure plate, the pressure block is disposed on the upper surface of the pressure plate, the upper surface of the pressure plate has a groove corresponding to the pressure block, and the bottom of the pressure block is disposed in the groove;

[0012] The pressure block and the pressure plate have a through hole at their center corresponding to the sleeve, and the sleeve passes through the through hole to penetrate the pressure plate and the pressure pad.

[0013] The bottom of the pressure plate has through bolt holes, the bottom of the pressure block has threaded holes, and the pressure pad is connected to the pressure block by connecting bolts at the bottom.

[0014] Furthermore, a receiving groove is formed at the center of the bottom of the pressure pad;

[0015] The threaded sleeve is disposed within the receiving groove.

[0016] Furthermore, the clamping assembly includes a screw and a connecting plate, the connecting plate being fixedly connected to the rolling mill base;

[0017] The connecting plate has a threaded hole corresponding to the screw, and the upper surface of the pressure block has a threaded hole corresponding to the screw. The screw is threadedly connected to the threaded hole.

[0018] Furthermore, the number of screws is two or more;

[0019] The screw is a double-ended, bidirectional screw.

[0020] Furthermore, the outer wall of the cylinder body has lifting lugs for hoisting the servo hydraulic cylinder.

[0021] Compared with the prior art, the servo hydraulic cylinder pressure-bearing device of the present invention has the following beneficial effects:

[0022] (1) The servo hydraulic cylinder pressure-bearing device of the present invention uses a sleeve and a pressure-bearing pad to bear the reaction force of the servo hydraulic cylinder during the rolling process. Furthermore, the pressure-bearing pad is pressed downward against the cylinder body under the action of the clamping component, bearing more reaction force, effectively protecting the sleeve and preventing deformation of the sleeve. Compared with the traditional method of using only a column for pressure bearing, the sleeve and pressure-bearing pad of the present invention bear the reaction force of the servo hydraulic cylinder during the rolling process, which greatly improves the service life of the pressure-bearing device and reduces the maintenance and replacement cost of the pressure-bearing device.

[0023] (2) The servo hydraulic cylinder pressure bearing device of the present invention includes a pressure bearing block and a pressure bearing plate. Since the pressure bearing plate plays the main pressure bearing role during the rolling process, it is more likely to break than the pressure bearing block. When a break occurs, since the pad and the pressure bearing plate are connected separately, we only need to replace the pressure bearing plate, without replacing the entire pressure bearing pad, which greatly reduces the replacement cost of the pressure bearing pad.

[0024] (3) The servo hydraulic cylinder pressure bearing device of the present invention adopts a double-headed bidirectional screw in the clamping assembly. When the pressure bearing pad needs to be replaced, the servo hydraulic cylinder is first lifted by the lifting lug on the outer wall of the cylinder body. Then, by rotating the double-headed bidirectional screw, the entire pressure bearing pad can be moved up to expose the threaded sleeve set in the receiving groove of the pressure plate. Rotating the threaded sleeve separates the sleeve from the threaded column on the cylinder body. Then, the connecting bolts at the bottom of the pressure plate are removed. Finally, the pressure plate is removed downwards to repair or replace the new pressure plate, which greatly improves the repair or replacement cost of the pressure plate and is simple to operate. Attached Figure Description

[0025] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0026] Figure 1 This is a cross-sectional schematic diagram of the servo hydraulic cylinder pressure-bearing device according to an embodiment of the present invention;

[0027] Figure 2 This is a partial cross-sectional view of the servo hydraulic cylinder pressure-bearing device according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Sleeve; 2. Pressure block; 3. Pressure plate; 4. Connecting bolt; 5. Cylinder body; 6. Screw; 7. Connecting plate; 8. Threaded post; 9. Threaded sleeve. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," etc., 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. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, a servo hydraulic cylinder pressure-bearing device includes a sleeve 1, the top of which is fixedly connected to a mill base; the bottom of the sleeve 1 is detachably connected to the cylinder body 5 of the hydraulic cylinder.

[0035] A pressure-bearing pad is fitted on the outer side of the sleeve 1. The bottom of the pressure-bearing pad is fitted against the top surface of the cylinder 5. The top of the pressure-bearing pad has a clamping component for clamping the pressure-bearing pad downwards.

[0036] This application uses sleeve 1 and pressure pad to bear the reaction force of the servo hydraulic cylinder during the rolling process. Furthermore, the pressure pad, under the action of the clamping assembly, presses downward against the cylinder body 5, bearing more reaction force and effectively protecting sleeve 1, preventing sleeve 1 from deforming. Compared with the traditional method of using only a column for pressure bearing, this application uses sleeve 1 and pressure pad to bear the reaction force of the servo hydraulic cylinder during the rolling process, which greatly improves the service life of the pressure bearing device and reduces the maintenance and replacement costs of the pressure bearing device.

[0037] like Figure 1 , Figure 2 As shown, a threaded sleeve 9 is fitted onto the outer bottom of the sleeve 1, and the threaded sleeve 9 is rotatably connected to the sleeve 1; a threaded post 8 corresponding to the threaded sleeve 9 is fixedly provided on the top of the cylinder body 5; the sleeve 1 and the threaded post 8 are threadedly connected through the threaded sleeve 9. This structural design facilitates the connection of the threaded post 8 to the sleeve 1.

[0038] The pressure pad includes a pressure block 2 and a pressure plate 3. The pressure block 2 is disposed on the upper surface of the pressure plate 3. The upper surface of the pressure plate 3 has a groove corresponding to the pressure block 2. The bottom of the pressure block 2 is disposed in the groove. A through hole corresponding to the sleeve 1 is opened at the center position of the pressure block 2 and the pressure plate 3. The sleeve 1 passes through the pressure plate 3 and the pressure pad through the through hole. The bottom of the pressure plate 3 has a through bolt hole, and the bottom of the pressure block 2 has a threaded hole. The pressure pad is connected to the pressure block 2 by a connecting bolt 4 at the bottom.

[0039] In this application, the pressure pad includes a pressure block 2 and a pressure plate 3. Since the pressure plate 3 plays the main pressure-bearing role during the rolling process, it is more prone to breakage than the pressure block 2. When a breakage occurs, since the pad and the pressure plate 3 are connected separately, we only need to replace the pressure plate 3, without replacing the entire pressure pad, which greatly reduces the replacement cost of the pressure pad.

[0040] The pressure plate 3 has a receiving groove at the center of its bottom; the threaded sleeve 9 is disposed in the receiving groove. Through the structural design of the receiving groove, the pressure plate 3 can be in full contact with the upper surface of the cylinder 5, and the pressure plate 3 can mainly share the reaction force during the rolling process.

[0041] The clamping assembly includes a screw 6 and a connecting plate 7, the connecting plate 7 being fixedly connected to the rolling mill base; the connecting plate 7 has a threaded hole corresponding to the screw 6, and the upper surface of the pressure block 2 has a threaded hole corresponding to the screw 6, the screw 6 being threadedly connected to the threaded hole. There are two or more screws 6; the screw 6 is a double-ended, bidirectional screw 6. The outer wall of the cylinder body 5 has lifting lugs for hoisting the servo hydraulic cylinder. A double-ended, bidirectional screw 6 refers to a screw 6 with threads at both ends, and the thread directions are opposite. The double-ended, bidirectional screw 6 facilitates the rapid upward movement of the entire pressure pad, exposing the threaded sleeve 9 below.

[0042] When the pressure pad needs to be replaced, first use the lifting lugs on the outer wall of the cylinder body 5 to suspend the servo hydraulic cylinder. Then, by rotating the double-headed double-acting screw 6, the entire pressure pad can be moved upward, exposing the threaded sleeve 9 set in the receiving groove of the pressure plate 3. Rotate the threaded sleeve 9 to separate the sleeve 1 from the threaded post 8 on the cylinder body 5. Then, remove the connecting bolt 4 at the bottom of the pressure plate 3. Finally, remove the pressure plate 3 downward (it should be noted that the diameter of the through hole at the center of the pressure plate 3 is larger than the outer diameter of the threaded sleeve 9). Repair or replace the pressure plate 3. This significantly increases the repair or replacement cost of the pressure plate, and the operation is simple.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressure containment device for a servo-hydraulic cylinder, characterized by: It includes a sleeve, the top of which is fixedly connected to the rolling mill base; the bottom of which is detachably connected to the cylinder body of the hydraulic cylinder. A pressure-bearing pad is fitted on the outer side of the sleeve. The bottom of the pressure-bearing pad is fitted against the top surface of the cylinder. The top of the pressure-bearing pad has a clamping component for clamping the pressure-bearing pad downwards. A threaded sleeve is fitted onto the outer bottom of the sleeve, and the threaded sleeve is rotatably connected to the sleeve. The top of the cylinder is fixedly provided with a threaded post corresponding to the threaded sleeve; The sleeve and the threaded post are connected by the threaded sleeve; the pressure pad includes a pressure block and a pressure plate, the pressure block is disposed on the upper surface of the pressure plate, the upper surface of the pressure plate has a groove corresponding to the pressure block, and the bottom of the pressure block is disposed in the groove; The pressure block and the pressure plate have a through hole at their center corresponding to the sleeve, and the sleeve passes through the through hole to penetrate the pressure plate and the pressure pad. The bottom of the pressure plate has through bolt holes, the bottom of the pressure block has threaded holes, and the pressure pad is connected to the pressure block by connecting bolts at the bottom.

2. The pressure containment device of claim 1, wherein: The pressure pad has a receiving groove at the center of its bottom; The threaded sleeve is disposed within the receiving groove.

3. The pressure containment device of claim 1, wherein: The clamping assembly includes a screw and a connecting plate, the connecting plate being fixedly connected to the mill stand; The connecting plate has a threaded hole corresponding to the screw, and the upper surface of the pressure block has a threaded hole corresponding to the screw. The screw is threadedly connected to the threaded hole.

4. The pressure containment device of claim 3, wherein: The number of screws is two or more; The screw is a double-ended, bidirectional screw.

5. The pressure containment device of claim 1, wherein: The outer wall of the cylinder body has lifting lugs for hoisting the servo hydraulic cylinder.

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