Support roller installation structure and rolling mill

Abstract

The utility model provides a support roller installation structure and a rolling mill, including a bearing seat, a bearing and a connection box arranged on the bearing seat, and an anode water tank arranged outside the bearing seat; the bearing is used to install the shaft head of the support roller; the connection box is arranged on the side of the bearing seat close to the roll neck of the support roller, and the connection box is arranged along the circumferential extension of the roll neck, and a water storage space is formed between the connection box and the roll neck; the anode water tank is connected to the water storage space and filled with electrolyte, and an anode metal is arranged in the anode water tank, and the anode metal is connected to the shaft head of the support roller through a wire. The support roller installation structure described in the utility model, by providing a connection box and an anode water tank, allows the roll neck and the anode metal to be immersed in the electrolyte to form a primary battery system, thereby preventing the roll neck from being corroded and increasing the service life of the support roller.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical steel rolling machinery, in particular to a support roller installation structure.

[0002] The utility model also relates to a rolling mill provided with the supporting roller installation structure. Background Art

[0003] During the operation of the rolling mill, spray cooling of the rolls and rolled steel is an important means to ensure the normal operation of the rolling mill and the quality of rolled steel products. Usually, cooling water is used to cool the rolls and rolled steel, and the cooling water is generally recycled using tap water or river water. As the number of uses increases, the water quality of the cooling water will change, which is more likely to cause stress corrosion on the roll neck of the support roll of the rolling mill. At present, a water retaining ring is usually provided at the roll neck of the support roll, but there is a gap between the water retaining ring and the roll neck for retaining cooling water, which causes the cooling water to contact the roll neck for a long time, causing roll neck corrosion, thereby reducing the service life of the support roll. Utility Model Content

[0004] In view of this, the utility model aims to provide a support roller installation structure, which can prevent the roller neck from being corroded and increase the service life of the support roller.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A support roller installation structure comprises a bearing seat, a bearing and a connection box arranged on the bearing seat, and an anode water tank arranged outside the bearing seat.

[0007] The bearing is used to install the shaft head of the support roller; the connecting box is arranged on the side of the bearing seat close to the roller neck of the support roller, and the connecting box is arranged to extend circumferentially along the roller neck, and a water storage space is formed between the connecting box and the roller neck; the anode water tank is connected to the water storage space and is filled with electrolyte, and an anode metal is provided in the anode water tank, and the anode metal is connected to the shaft head of the support roller through a wire.

[0008] Furthermore, a water inlet is provided on the top of the connection box, and a first sealing ring and a second sealing ring are provided on the connection box; the first sealing ring abuts against one end of the roller body of the support roller, and the second sealing ring abuts against the roller neck.

[0009] Furthermore, the first sealing ring and the second sealing ring each have two lips, and the lips are coated with a wear-resistant coating.

[0010] Furthermore, a bearing cover is provided on the bearing seat, and the bearing cover is located at the end of the shaft head; an elastic component is provided on the bearing cover, one end of the elastic component abuts against the shaft head, and the other end of the elastic component is connected to the wire.

[0011] Furthermore, the elastic component includes a spring connected to the bearing cover, and a top ball arranged on the spring; the top ball abuts against the shaft head, and the top ball is made of a copper-based graphite composite material.

[0012] Furthermore, the anode metal and the bearing cover are both provided with sockets, and the wire can be plugged into the two sockets to connect the elastic component and the anode metal.

[0013] Furthermore, the anode metal is made of Mg-Mn alloy or Mg-6Al-3Zn-Mn alloy.

[0014] Furthermore, the anode water tank is provided with an observation window, and / or the connection box and the anode water tank are both provided with drainage outlets.

[0015] Furthermore, the connection box is connected to the anode water tank via a hose, and the bottoms of the connection box and the anode water tank are both provided with connectors for connecting the hose.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The support roller installation structure of the utility model, by arranging a connection box and an anode water tank, allows the roller neck and the anode metal to be immersed in the electrolyte to form a galvanic cell system, thereby preventing the roller neck from being corroded and increasing the service life of the support roller.

[0018] In addition, a water inlet is provided on the top of the connection box to facilitate the replenishment of electrolyte, and a first sealing ring and a second sealing ring are provided on the connection box. Moreover, the first sealing ring and the second sealing ring each have two lips, and the lips are coated with a wear-resistant coating, which can improve the tightness of the contact between each sealing ring and the support roller and the durability of the sealing ring, so as to prevent the electrolyte from flowing out from the gap between the connection box and the support roller.

[0019] Another object of the utility model is to provide a rolling mill, in which the supporting roller installation structure as described above is provided.

[0020] The rolling mill of the utility model is provided with the above-mentioned support roller installation structure, which can have the technical advantages of the above-mentioned support roller installation structure, so as to increase the service life of the rolling mill and reduce the maintenance cost of the rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic structural diagram of the support roller installation structure according to an embodiment of the utility model;

[0023] Figure 2 For the utility model Figure 1 A schematic diagram of the local structure at the position indicated by A;

[0024] Figure 3 For the utility model Figure 2 A schematic diagram of the local structure at the position indicated by B;

[0025] Figure 4 For the utility model Figure 2 A schematic diagram of the local structure at the position indicated by C in the middle;

[0026] Description of reference numerals:

[0027] 1. Bearing seat; 2. Connection box; 3. Anode water tank; 4. Shaft head; 5. Roller neck; 6. Water storage space; 7. Anode metal; 8. Roller body; 9. Water inlet;

[0028] 11. Four-row cylindrical roller bearing; 12. Double-row ball bearing; 13. Oil seal; 14. Bearing cover; 15. Spring; 16. Top ball; 17. Socket;

[0029] 21. First sealing ring; 22. Second sealing ring; 23. Joint. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

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

[0034] Embodiment 1

[0035] The present embodiment relates to a support roller installation structure, which can prevent the roller neck 5 of the support roller from being corroded.

[0036] In terms of overall structure, Figure 1 As shown, the support roller installation structure of this embodiment includes a bearing seat 1, a bearing and a connecting box 2 arranged on the bearing seat 1, and an anode water tank 3 arranged outside the bearing seat 1.

[0037] The bearing is used to install the shaft head 4 of the support roller, the connection box 2 is arranged on the side of the bearing seat 1 close to the roller neck 5 of the support roller, and the connection box 2 is arranged along the circumference of the roller neck 5, and a water storage space 6 is formed between the connection box 2 and the roller neck 5. The anode water tank 3 is connected to the water storage space 6 and filled with electrolyte, and the anode water tank 3 is provided with an anode metal 7, and the anode metal 7 is connected to the shaft head 4 of the support roller through a wire.

[0038] As described above, the support roller installation structure of this embodiment, by setting the connecting box 2 and the anode water tank 3, allows the roller neck 5 and the anode metal 7 to be immersed in the electrolyte to form a galvanic cell system, thereby preventing the roller neck 5 from being corroded and increasing the service life of the support roller.

[0039] Based on the above overall introduction, continue to combine Figure 1 As shown, in this embodiment, the connecting box 2 and the anode water tank 3 can be preferably made of stainless steel plates welded together to prevent the connecting box 2 and the anode water tank 3 themselves from being corroded by the electrolyte. In the specific implementation, the connecting box 2 can be preferably designed as a U-shaped structure or a ring structure, so that the connecting box 2 is arranged on the outer periphery of the roller neck 5, and the anode water tank 3 can be preferably arranged on the frame of the rolling mill where the above-mentioned bearing seat 1 is installed, or at other locations, to ensure that the connecting box 2 and the anode water tank 3 are connected.

[0040] In this embodiment, the anode metal 7 serves as the anode and the roller neck 5 serves as the cathode. Both are immersed in the electrolyte and connected by a wire to form a galvanic cell system. The anode metal 7 is preferentially corroded in the electrolyte and loses electrons. The electrons move to the anode via the wire to protect the cathode (i.e., the roller neck 5), thereby achieving the cathodic protection effect of the sacrificial anode.

[0041] In addition, the bearings of this embodiment may preferably include four-row cylindrical roller bearings 11 and double-row ball bearings 12 to ensure the smoothness of the rotation of the support rollers. Figure 2 and Figure 3 As shown, an oil seal 13 is provided between the bearing and the connection box 2 to prevent electrolyte or cooling water from entering the bearing.

[0042] As a preferred implementation form, combined with Figure 1 , Figure 2 and Figure 3 As shown, the top of the connection box 2 of this embodiment is provided with a water inlet 9, so that the electrolyte can be replenished into the water storage space 6 through the water inlet 9. When the rolling mill is working, it is necessary to spray cooling water to cool the rolled steel, support rolls and working rolls. It is precisely because the cooling water itself will corrode the roll neck 5 that the cooling water can be used as the electrolyte. In specific implementation, the water inlet 9 on the top of the connection box 2 can preferably be set to be always open. When the rolling mill is working, the sprayed cooling water can enter the connection box 2 through the water inlet 9 and enter the anode water tank 3 through the hose to replenish the electrolyte at all times.

[0043] It can be understood that there is a certain gap between the side wall of the connection box 2 and the support roller. Therefore, as a preferred implementation form, the connection box 2 of this embodiment is provided with a first sealing ring 21 and a second sealing ring 22. The first sealing ring 21 abuts against one end of the roller body 8 of the support roller, and the second sealing ring 22 abuts against the roller neck 5. The roller neck 5 is located between the first sealing ring 21 and the second sealing ring 22, so that the side wall of the connection box 2, the first sealing ring 21, the second sealing ring 22 and the roller neck 5 together form a water storage space 6 to completely immerse the roller neck 5 in the electrolyte and seal the water storage space 6 to prevent the loss of electrolyte.

[0044] In this embodiment, as a preferred implementation form, the first sealing ring 21 and the second sealing ring 22 each have two lips, and the lips are coated with a wear-resistant coating. When the support roller rolls, it rubs against each sealing ring. The wear-resistant coating can increase the service life of each sealing ring, and the two lips can ensure the sealing between the connection box 2 and the support roller. In specific implementation, the wear-resistant coating can preferably adopt a polytetrafluoroethylene coating, or other conventional coating materials known to those skilled in the art, which can increase the wear resistance and durability of the lips.

[0045] In addition, combined Figure 1 and Figure 3 As shown, a bearing cover 14 is provided on the bearing seat 1, and the bearing cover 14 is located at the end of the shaft head 4, and an elastic component is provided on the bearing cover 14, one end of the elastic component abuts the shaft head 4, and the other end is connected to the wire. As the support roller rotates, the connection method of connecting the wire to the shaft head 4 through the elastic component has a better connection effect.

[0046] Specifically, continue to combine Figure 3 As shown, as a preferred implementation form, the elastic component includes a spring 15 connected to the bearing cover 14, and a top ball 16 arranged on the spring 15, the top ball 16 abuts on the shaft head 4, and the top ball 16 is made of a copper-based graphite composite material. The spring 15 pushes the top ball 16 to press on the shaft head 4, and the top ball 16 is made of a copper-based graphite composite material with good conductivity, self-lubrication and durability, ensuring the connection effect between the shaft head 4 and the wire. In the specific implementation, a pit is provided at the end of the shaft head 4, and the top ball 16 abuts in the pit, increasing the contact area with the shaft head 4.

[0047] Among them, as a preferred implementation form, the anode metal 7 and the bearing cover 14 are both provided with sockets 17, and the wires can be plugged into the two sockets 17 to connect the elastic component and the anode metal 7, so that when the support roller installation structure needs maintenance, it is convenient to insert the wires, and it is convenient for maintenance personnel to replace the anode metal 7 and the elastic component, which is beneficial to the maintenance of the equipment. Specifically, the anode metal 7 in this embodiment is made of Mg-Mn alloy or Mg-6Al-3Zn-Mn alloy. Compared with other types of anode metal 7, the surface dissolution uniformity of Mg-Mn alloy and Mg-6Al-3Zn-Mn alloy is better, the current efficiency is high, and it has a better protective effect on the roll neck 5.

[0048] Furthermore, as a preferred implementation form, an observation window is provided on the anode water tank 3 of this embodiment, so that the consumption of the anode metal 7 can be checked through the observation window, so that the maintenance personnel can replace the anode metal 7 in time. In addition, a drain port is provided on both the connecting water tank and the anode water tank 3, and when the rolling mill is shut down or maintained, the electrolyte can be discharged through the drain port to facilitate maintenance work.

[0049] In this embodiment, as a preferred implementation form, the connection box 2 is connected to the anode water tank 3 through a hose, and the bottom of the connection box 2 and the anode water tank 3 are provided with a connector 23 for connecting the hose. The hose can be a stainless steel hose, which has better durability than a rubber hose to prevent the hose from aging and cracking, and avoid the outflow of electrolyte, which would damage the anti-corrosion protection of the roll neck 5.

[0050] The support roller installation structure of this embodiment, by setting the connecting box 2 and the anode water tank 3, immerses the roller neck 5 and the anode metal 7 in the electrolyte to form a galvanic cell system, thereby preventing the roller neck 5 from being corroded and increasing the service life of the support roller, and has good practicality.

[0051] Embodiment 2

[0052] This embodiment designs a rolling mill, which is used for metal rolling in the rolling production process. At the same time, the rolling mill is provided with the support roller installation structure of the first embodiment.

[0053] The rolling mill of this embodiment is provided with the support roller installation structure of the first embodiment, which can prevent the roll neck 5 of the support roller from being corroded, thereby increasing the service life of the support roller and the rolling mill, reducing the maintenance cost of the rolling mill, and having good practicality.

[0054] 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 in the protection scope of the present invention.

Claims

1. A support roller installation structure, characterized in that: It comprises a bearing seat (1), a bearing and a connection box (2) arranged on the bearing seat (1), and an anode water tank (3) arranged outside the bearing seat (1); The bearing is used to mount the shaft head (4) of the support roller; The connection box (2) is arranged on a side of the bearing seat (1) close to the roll neck (5) of the support roll, and the connection box (2) is arranged to extend along the circumference of the roll neck (5), and a water storage space (6) is formed between the connection box (2) and the roll neck (5); The anode water tank (3) is connected to the water storage space (6) and is filled with electrolyte, and an anode metal (7) is provided in the anode water tank (3), and the anode metal (7) is connected to the shaft head (4) of the support roller through a wire.

2. The support roller installation structure according to claim 1, characterized in that: A water inlet (9) is provided on the top of the connection box (2), and a first sealing ring (21) and a second sealing ring (22) are provided on the connection box (2); The first sealing ring (21) abuts against one end of the roller body (8) of the support roller, and the second sealing ring (22) abuts against the roller neck (5).

3. The support roller installation structure according to claim 2, characterized in that: The first sealing ring (21) and the second sealing ring (22) both have two lip edges, and the lip edges are coated with a wear-resistant coating.

4. The support roller installation structure according to claim 1, characterized in that: The bearing seat (1) is provided with a bearing cover (14), and the bearing cover (14) is located at the end of the shaft head (4); An elastic component is provided on the bearing cover (14), one end of the elastic component abuts against the shaft head (4), and the other end of the elastic component is connected to the wire.

5. The support roller installation structure according to claim 4, characterized in that: The elastic component comprises a spring (15) connected to the bearing cover (14), and a top ball (16) arranged on the spring (15); The top ball (16) abuts against the shaft head (4), and the top ball (16) is made of a copper-based graphite composite material.

6. The support roller installation structure according to claim 4, characterized in that: The anode metal (7) and the bearing cover (14) are both provided with a socket (17); The wire can be plugged into the two sockets (17) to connect the elastic component and the anode metal (7).

7. The support roller installation structure according to claim 1, characterized in that: The anode metal (7) is made of Mg-Mn alloy or Mg-6Al-3Zn-Mn alloy.

8. The support roller installation structure according to claim 1, characterized in that: The anode water tank (3) is provided with an observation window, and / or the connection box (2) and the anode water tank (3) are both provided with drainage outlets.

9. The support roller installation structure according to claim 1, characterized in that: The connection box (2) is connected to the anode water tank (3) via a hose, and the bottoms of the connection box (2) and the anode water tank (3) are both provided with a connector (23) for connecting the hose.

10. A rolling mill, characterized in that: The rolling mill is provided with the support roller mounting structure according to any one of claims 1 to 9.

Images