Rolling mill roll bending block device capable of separating roll bending and roll shifting oil ways

Abstract

The utility model discloses a rolling mill roll bending block device with separated roll bending and shifting oil ways, which belongs to the technical field of roll bending block oil way distribution and comprises a roll bending block and an internal oil way, the oil way comprises an upper cavity oil way channel and a lower cavity oil way channel of a balance cylinder and a lifting cylinder, and the upper cavity oil way channel and the lower cavity oil way channel are connected to a roll bending block shell to form an external oil port. A roll shifting transition connector is omitted, oil leakage and equipment faults are reduced, meanwhile, a stainless steel pipe and a standard connector are adopted in an internal oil way, an oil port screwed plug is arranged outside, oil leakage is prevented, external oil ports are uniform in specification, maintenance is simplified, the device is suitable for a hot rolling plate rolling finishing mill, and operation stability and production efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of oil circuit distribution technology for bent roll blocks, and in particular to a rolling mill bent roll block device for separating the oil circuit of bent rolls. Background Technology

[0002] In actual use, the oil circuit of the bending roll block in the hot-rolled coil finishing mill is connected to the traverse roll block through the traverse roll transition joint. When steel passes through the stand, the stand body will generate slight vibrations, and the bending roll block and the traverse roll block will be displaced relative to each other. Over time, this will cause damage to the traverse roll transition joint, resulting in oil leakage and equipment failure. The transition joint must be replaced, which takes a long time, requiring 4-6 hours, and seriously affecting the production rhythm. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rolling mill bending roll block device for separating the oil circuit of the bending roll and the skewed roll. By processing new oil circuits on the basis of the original bending roll block, all oil circuits pass through the bending roll block only, thereby realizing the separation of the oil circuits of the bending roll block and the skewed roll block.

[0004] To achieve the above objectives, this utility model provides a rolling mill bending roll block device for separating the oil circuit of the bending roll and the bending roll, comprising:

[0005] The bending roller block has four side walls: a left side wall, a right side wall, an upper side wall, and a lower side wall.

[0006] Multiple balance cylinders, the upper ends of which are all connected to the lower surface of the upper side wall;

[0007] Each of the balance cylinders has a corresponding balance cylinder upper chamber oil passage, and the upper side wall has a balance cylinder oil inlet corresponding to each balance cylinder upper chamber oil passage. The upper chamber of the balance cylinder is connected to the balance cylinder oil inlet through the balance cylinder upper chamber oil passage.

[0008] Each of the balance cylinders has a corresponding balance cylinder lower chamber oil passage, and a balance cylinder oil outlet is provided on the lower side wall. The lower chamber of the balance cylinder is connected to the balance cylinder oil outlet through the balance cylinder lower chamber oil passage.

[0009] A lifting cylinder is located at the lower end of the balance cylinder;

[0010] The upper cavity of the lifting cylinder is provided with an upper cavity oil passage, and the upper side wall is provided with an oil inlet corresponding to the upper cavity oil passage. The upper cavity of the lifting cylinder is connected to the oil inlet through the upper cavity oil passage.

[0011] The lower chamber of the lifting cylinder is provided with a corresponding oil passage, and the lower side wall is provided with an oil outlet corresponding to the oil passage. The lower chamber of the lifting cylinder is connected to the oil outlet through the oil passage.

[0012] Furthermore, the balance cylinder has one oil outlet, and the ends of the multiple lower chamber oil passages of the balance cylinder are combined into one oil passage to connect with the balance cylinder oil outlet.

[0013] Furthermore, the oil passages in the upper chamber of the balance cylinder, the lower chamber of the balance cylinder, the upper chamber of the lifting cylinder, and the lower chamber of the lifting cylinder are all made of Φ18×3 stainless steel pipe with a wall thickness of 3mm.

[0014] Furthermore, the connectors of the upper chamber oil passage of the balance cylinder, the lower chamber oil passage of the balance cylinder, the upper chamber oil passage of the lifting cylinder, and the lower chamber oil passage of the lifting cylinder all use the G3 / 8-M24×1.5H specification.

[0015] Furthermore, oil inlet plugs of G3 / 4 size are provided on the oil inlet of the balance cylinder, the oil outlet of the balance cylinder, the oil inlet of the lifting cylinder, and the oil outlet of the lifting cylinder to seal unused oil ports and prevent oil leakage.

[0016] Furthermore, the specifications of the balance cylinder oil inlet, the balance cylinder oil outlet, the lifting cylinder oil inlet, and the lifting cylinder oil outlet are all G3 / 8.

[0017] Furthermore, both the oil inlet of the balance cylinder and the oil inlet of the lifting cylinder are connected to oil nozzles.

[0018] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0019] (1) In this utility model, by eliminating the original transition joint of the roller, the oil passage of the upper chamber of the balance cylinder, the oil passage of the lower chamber of the balance cylinder, the oil passage of the upper chamber of the lifting cylinder, and the oil passage of the lower chamber of the lifting cylinder are all connected to the side wall of the bending roller block to form an external oil port, and the oil passage in the bending roller block does not pass through the roller block, thereby reducing the oil leakage caused by the damage of the transition joint, thus reducing the frequency of equipment failure and maintenance time.

[0020] (2) The internal oil circuit of this utility model adopts a stainless steel pipe of Φ18×3 and a connector of G3 / 8-M24×1.5H specification. The outside of the bending roller block is provided with an oil port plug of G3 / 4 specification, which is used to seal unused oil ports. The external oil port is of G3 / 8 specification. Using standardized parts specifications helps to simplify the connection process, improve the compatibility and maintenance convenience of the equipment, and help to improve the durability of the oil circuit and enhance the stability of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the rolling mill bending roll block device with oil circuit separation for bending rolls and skewed rolls provided in this embodiment of the utility model;

[0022] Labeling explanation: 1. Bending roller block; 1-1. Balance cylinder; 1-2. Lifting cylinder; 1-3. Balance cylinder oil inlet; 1-4. Balance cylinder oil outlet; 1-5. Lifting cylinder oil inlet; 1-6. Lifting cylinder oil outlet. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0024] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "horizontal," 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 be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figure 1 As shown, this embodiment provides a rolling mill bending roll block device for separating the oil circuit of the bending roll and the bending roll, including:

[0027] A rolling mill bending roll block device for separating the oil circuit of the bending roll and the bending roll, comprising:

[0028] The bending roller block 1 has four side walls, namely the left side wall, the right side wall, the upper side wall and the lower side wall;

[0029] Multiple balance cylinders 1-1, the upper ends of which are all connected to the lower surface of the upper side wall;

[0030] Each balance cylinder 1-1 has a corresponding balance cylinder upper chamber oil passage, and the upper side wall is provided with a balance cylinder oil inlet 1-3 corresponding to each balance cylinder upper chamber oil passage. The upper chamber of balance cylinder 1-1 is connected to the balance cylinder oil inlet 1-3 through the balance cylinder upper chamber oil passage.

[0031] Each balance cylinder 1-1 has a corresponding balance cylinder lower chamber oil passage, and a balance cylinder oil outlet 1-4 is provided on the lower side wall. The lower chamber of balance cylinder 1-1 is connected to the balance cylinder oil outlet 1-4 through the balance cylinder 1-1 lower chamber oil passage.

[0032] Lifting cylinder 1-2 is located at the lower end of balance cylinder 1-1;

[0033] The upper cavity of the lifting cylinder 1-2 is provided with an upper cavity oil passage, and the upper side wall is provided with an oil inlet 1-5 corresponding to the upper cavity oil passage. The upper cavity of the lifting cylinder 1-2 is connected to the oil inlet 1-5 through the upper cavity oil passage.

[0034] The lower chamber of the lifting cylinder 1-2 is provided with a corresponding oil passage for the lower chamber of the lifting cylinder, and the lower side wall is provided with an oil outlet 1-6 for the lower chamber of the lifting cylinder corresponding to the oil passage for the lower chamber of the lifting cylinder. The lower chamber of the lifting cylinder 1-2 is connected to the oil outlet 1-6 of the lifting cylinder through the oil passage for the lower chamber of the lifting cylinder.

[0035] Furthermore, in the rolling mill bending roll block device with separate oil circuits for bending rolls and roll shifting, one oil outlet 1-4 of the balance cylinder is provided, and the ends of the oil circuit channels of multiple lower chambers of the balance cylinders are combined into one oil circuit channel to connect with the oil outlet 1-4 of the balance cylinder.

[0036] Furthermore, the oil passages in the upper chamber of the balance cylinder, the lower chamber of the balance cylinder, the upper chamber of the lifting cylinder, and the lower chamber of the lifting cylinder are all made of Φ18×3 stainless steel pipes with a wall thickness of 3mm to ensure the stability and durability of oil transmission.

[0037] Specifically, the connectors for the upper chamber oil passage of the balance cylinder, the lower chamber oil passage of the balance cylinder, the upper chamber oil passage of the lifting cylinder, and the lower chamber oil passage of the lifting cylinder use the G3 / 8-M24×1.5H specification.

[0038] Furthermore, oil inlet plugs of specification G3 / 4 are provided on the oil inlet 1-3 of the balance cylinder, the oil outlet 1-4 of the balance cylinder, the oil inlet 1-5 of the lifting cylinder, and the oil outlet 1-6 of the lifting cylinder to seal unused oil ports and prevent oil leakage.

[0039] Specifically, the specifications of the balance cylinder oil inlet 1-3, balance cylinder oil outlet 1-4, lifting cylinder oil inlet 1-5, and lifting cylinder oil outlet 1-6 are all G3 / 8.

[0040] Furthermore, oil inlets 1-3 of the balance cylinder and oil inlets 1-5 of the lifting cylinder are all connected to oil nozzles.

[0041] The bending roll block device is suitable for hot-rolled coil finishing mills. It optimizes the internal oil circuit layout, reduces equipment failures caused by frame vibration, effectively solves the oil leakage problem caused by damage to the transition joint of the skewed rolls in traditional solutions, and improves the operational stability of the production line.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rolling mill bending roll block device for separating the oil circuit of the bending roll and the bending roll, characterized in that, The utility model relates to a bending roll block, which comprises: a bending roll block having four side walls, i.e., a left side wall, a right side wall, an upper side wall, and a lower side wall; a plurality of balance cylinders, the upper ends of which are connected to the lower surface of the upper side wall; an upper cavity of each balance cylinder is provided with a balance cylinder upper cavity oil passage, and the upper side wall is provided with a balance cylinder oil inlet corresponding to each balance cylinder upper cavity oil passage, the upper cavity of the balance cylinder being connected to the balance cylinder oil inlet through the balance cylinder upper cavity oil passage; a lower cavity of each balance cylinder is provided with a balance cylinder lower cavity oil passage, and the lower side wall is provided with a balance cylinder oil outlet, the lower cavity of the balance cylinder being connected to the balance cylinder oil outlet through the balance cylinder lower cavity oil passage; a lifting cylinder is arranged at the lower end of the balance cylinder; the upper cavity of the lifting cylinder is provided with a lifting cylinder upper cavity oil passage, and the upper side wall is provided with a lifting cylinder oil inlet corresponding to the lifting cylinder upper cavity oil passage, the upper cavity of the lifting cylinder being connected to the lifting cylinder oil inlet through the lifting cylinder upper cavity oil passage; the lower cavity of the lifting cylinder is provided with a lifting cylinder lower cavity oil passage, and the lower side wall is provided with a lifting cylinder oil outlet corresponding to the lifting cylinder lower cavity oil passage, the lower cavity of the lifting cylinder being connected to the lifting cylinder oil outlet through the lifting cylinder lower cavity oil passage.

2. The bending and shifting mill roll chock apparatus of claim 1, wherein, The balance cylinder oil outlet is provided with one, and the ends of the plurality of balance cylinder lower cavity oil passages are connected to one oil passage to be connected to the balance cylinder oil outlet.

3. The bending and shifting mill roll chock apparatus of claim 1, wherein, The balance cylinder upper cavity oil passage, the balance cylinder lower cavity oil passage, the lifting cylinder upper cavity oil passage, and the lifting cylinder lower cavity oil passage are all made of Φ18×3 stainless steel pipes with a wall thickness of 3 mm.

4. The roll bending and roll shifting oil passage separated rolling mill roll bending block device according to claim 1, characterized by, The joints of the balance cylinder upper cavity oil passage, the balance cylinder lower cavity oil passage, the lifting cylinder upper cavity oil passage, and the lifting cylinder lower cavity oil passage are all G3 / 8-M24×1.5H.

5. The roll bending and roll shifting oil passage separated rolling mill roll bending block device according to claim 1, characterized by, The balance cylinder oil inlet, the balance cylinder oil outlet, the lifting cylinder oil inlet, and the lifting cylinder oil outlet are all provided with oil inlet plugs, which are G3 / 4 in size, for closing unused oil inlets and preventing oil leakage.

6. The roll bending and roll shifting oil passage separated rolling mill roll bending block device according to claim 1, characterized by, The balance cylinder oil inlet, the balance cylinder oil outlet, the lifting cylinder oil inlet, and the lifting cylinder oil outlet are all G3 / 8 in size.

7. The roll bending and roll shifting oil passage separated rolling mill roll bending shoe apparatus according to claim 1, characterized by, The balance cylinder oil inlet and the lifting cylinder oil inlet are both connected with oil nozzles.

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