Upper intermediate roller supporting device

Abstract

The utility model relates to the technical field of mechanical equipment, and discloses a support device for an upper intermediate roll, which is applied to a Sendzimir twenty-high roll mill and comprises an upper support part for supporting the upper intermediate roll, a lower support part for contacting with a lower intermediate roll and a positioning seat positioned between the upper support part and the lower support part, the upper supporting part comprises two first arc grooves which are arranged in parallel and are provided with upward openings, the inner diameter of each first arc groove is matched with the outer diameter of a previous middle roller so as to bear one previous middle roller, and the lower supporting part comprises two second arc grooves which are arranged in parallel and are provided with downward openings; the inner diameter of each second arc groove is matched with the outer diameter of the next middle roller so that the second arc grooves can be used for supporting the upper supporting part, grooves used for avoiding the spraying beam are formed in the two sides of the positioning base, and guide wheels are evenly distributed at the groove bottom of the first arc groove. By using the supporting device, not only is the convenience of roller changing operation improved, but also time loss caused by looseness of the locking nut of the injection beam is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to an upper intermediate roller supporting device. Background Art

[0002] At present, the mill roll system of the Sendzimir 20-high rolling mill is symmetrically arranged in the form of four support rolls, three two-intermediate rolls, two one-intermediate rolls, and one working roll. After the roll system is assembled, the upper 10 rolls fit each other, and are driven by the left and right two-intermediate rolls connected to the gear box at the rear of the mill. There are a total of four driving rolls in the upper and lower parts. The support rolls are fixed by the plum blossom holes in the main machine arch with the locking mechanism, the driving side of the two upper drives is fixed by the spline of the roll body and the spline of the transmission shaft, the driving side of the one-intermediate idler roll and the two-intermediate idler rolls are fixed by a liftable hook, and the operating side is fixed by a retractable hook.

[0003] The mill roll system has a relatively fixed replacement cycle. According to the general process regulations, the replacement cycle of an intermediate roll is about 3 days. When abnormal conditions such as broken strips and peeling of the roll surface occur during the rolling process, it may also be necessary to replace the mill intermediate roll in advance. When replacing an intermediate roll, since the upper two intermediate rolls are hung on the driving side and the operating side by hooks, when the hooks on the driving side and the operating side are lowered, the upper two intermediate rolls fall on the rolling oil spray beams on the left and right sides of the mill, and then the operator manually pulls the roll body out of the mill frame. When the roll body is pulled out 2 / 3, the roll body is placed on the roll-changing trolley, and finally the upper two intermediate rolls are pulled out. It is more convenient to replace the lower two intermediate rolls. You only need to lift the hook on the driving side, and then pull the roll body out to the roll-changing trolley to pull it out smoothly. When installing a new intermediate roller, the lower two rollers and the middle one only need to be pushed into place to complete the installation. To install the upper intermediate roller, the roller needs to be placed on the spray beam, and then the roller head is hit by the roller changing trolley to increase the thrust before it can be installed.

[0004] At present, in the process of replacing an intermediate roller, since the upper two intermediate rollers are suspended relative to the lower intermediate roller, they are only supported by the upper rolling oil spray beam, and the rolling oil spray beam is fixed on the frame by nut locking. When an intermediate roller body is placed on the spray beam, the weight of the roller body will cause the spray beam to loosen, which will cause the roller body position to shift. When the roller is pushed into the frame, it cannot match the hook position on the driving side, which makes subsequent operations extremely inconvenient. What is more serious is that the locking nut of the spray beam needs to be re-locked after it is loosened. Due to the limitation of the installation position of the spray beam, the operating space for locking the spray beam is very small, and the locking process takes longer than the time to replace the intermediate roller itself. Therefore, it is urgent to design an intermediate roller support device to prevent the upper intermediate roller from falling directly on the spray beam when replacing the upper intermediate roller, so as to prevent the locking nut of the spray beam from loosening. Utility Model Content

[0005] The purpose of the utility model is to provide an upper intermediate roller support device to solve the problems mentioned in the above background technology that when replacing the upper intermediate roller, it is difficult to remove and install and the upper intermediate roller will directly fall on the spray beam, causing the locking nut of the spray beam to loosen.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The camshaft of the second intermediate roller is connected with the roller bearing cap to form a circle, and the circle is connected with the roller bearing cap to form a circle. The camshaft of the second intermediate roller is connected with the roller bearing cap to form a circle. The camshaft of the second intermediate roller is connected with the roller bearing cap to form a circle. This device is used to support the previous intermediate roller, so that the previous intermediate roller is prevented from falling directly on the spray beam during roller change, which may cause the fastening nut to loosen. A guide wheel is arranged at the bottom of the first circular arc groove, so that when replacing the previous intermediate roller, the staff can directly push the previous intermediate roller by hand, which reduces the impact of the roller-changing trolley on the driving side suspension, and also prevents the roller body of the previous intermediate roller from rubbing against the first circular arc groove during movement, which may cause scratches on the roller surface.

[0008] Furthermore, there is a first partition section between the two first arc grooves, and the outer end walls of the two first arc grooves are higher than or flush with the first partition section. This arrangement can separate the two upper intermediate rollers, while increasing the coverage range of the first arc groove and improving the stability of the upper intermediate roller falling into the first arc groove.

[0009] Furthermore, there is a second partition section between the two second circular arc grooves, and the outer end walls of the two second circular arc grooves are higher than or flush with the second partition section. This arrangement can increase the coverage range of the second circular arc grooves and improve their support stability.

[0010] Furthermore, the center angle of the first arc groove is 90° to 180°. In specific implementation, the center angle of the first arc groove is selected according to support stability and installation convenience.

[0011] Furthermore, the center angle of the second arc groove is 90° to 180°. In specific implementation, the center angle of the second arc groove is reasonably selected according to the support stability.

[0012] Furthermore, the two side walls of the opening end of the groove are respectively connected to the outer end wall of the first arc groove and the outer end wall of the second arc groove adjacent thereto as a whole. This arrangement simplifies the structure of the support device and makes it aesthetically pleasing.

[0013] Furthermore, the positioning seat is provided with a hollow circular hole, the hollow circular hole is located between the two grooves, and the axial direction of the hollow circular hole is parallel to the axial direction of the upper intermediate roller. Through this arrangement, the weight of the support device can be reduced and the operation convenience can be improved.

[0014] Furthermore, the bottom of the groove is provided with a plurality of hollow sections connected with the hollow circular hole. Through this arrangement, the weight of the support device can be reduced and the convenience of operation can be improved.

[0015] Furthermore, the hollow section is circular, rectangular, prismatic or triangular. The shape of the hollow section can be reasonably selected according to aesthetics.

[0016] Furthermore, the bottom of the second arc groove is evenly distributed with guide wheels, which are rubber wheels. This arrangement facilitates the pushing of the support device.

[0017] The utility model has the following advantages over the prior art:

[0018] 1. The upper intermediate roller support device of the utility model has a lower support part in contact with the two lower intermediate rollers, so that the upper support part can lift up the two upper intermediate rollers. When changing rollers, the upper intermediate roller directly falls into the first arc groove without falling on the spray beam. By using this support device, the convenience of the roller changing operation is improved and the time loss caused by the loosening of the spray beam locking nut is effectively avoided, and the downtime of the roller changing operation of an intermediate roller is shortened from 45 minutes to 15 minutes. The two sides of the positioning seat of the support device are provided with grooves, which can avoid the spray beam and avoid collision with the spray beam during the roller changing process; the support device evenly arranges guide wheels at the bottom of the first arc groove, so as to save more effort when pulling out and loading the upper intermediate roller, and also avoids the friction between the roller body of the upper intermediate roller and the first arc groove when the roller moves, resulting in scratches on the roller surface.

[0019] 2. The upper intermediate roller support device of the utility model is made of light materials. The positioning seat of the support device is provided with a hollow circular hole, and the bottom of the groove is provided with a hollow section connected to the hollow circular hole, which can effectively reduce the overall weight and improve the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of an upper intermediate roller support device in an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the use state of the upper intermediate roller support device in the embodiment of the utility model;

[0022] In the figure: 1. upper support part; 101. first arc groove; 102. first partition section; 2. positioning seat; 201. groove; 3. lower support part; 301. second arc groove; 302. second partition section; 4. guide wheel; 5. hollow circular hole; 6. hollow section; 7. upper intermediate roller; 8. lower intermediate roller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.

[0026] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further discussed and described in detail in the description of the subsequent drawings.

[0027] Example:

[0028] In the prior art, when replacing an intermediate roller, the upper two intermediate rollers have no stable support after the suspension is released, and the locking nut of the spray beam that supports it is easy to loosen. The existing solution cannot achieve convenient and efficient replacement of an intermediate roller.

[0029] In order to solve the problems existing in the process of replacing the upper intermediate roller, an integrated upper intermediate roller support device was designed based on the cavity space when the roller system is fully opened to improve the efficiency and convenience of the upper intermediate roller replacement operation. Figure 1 and Figure 2 As shown, a support device for an upper intermediate roll is applied to a Sendzimir twenty-high rolling mill, comprising: an upper support portion 1 for supporting an upper intermediate roll 7, a lower support portion 3 for contacting a next intermediate roll 8, and a positioning seat 2 located between the upper support portion 1 and the lower support portion 3; the upper support portion 1 comprises two first circular arc grooves 101 arranged in parallel and opening upward, the length direction of the first circular arc grooves 101 extending along the axis direction of the upper intermediate roll 7, and the inner diameter of each of the first circular arc grooves 101 matches the outer diameter of the upper intermediate roll 7 for bearing The lower support part 3 includes two second arc grooves 301 arranged in parallel and opening downward, the length direction of the second arc grooves 301 extends along the axis direction of the next intermediate roller 8, and the inner diameter of each second arc groove 301 matches the outer diameter of the next intermediate roller 8 to support the upper support part 1. The two sides of the positioning seat 2 have grooves 201 for avoiding the spray beam, and the length direction of the grooves 201 extends along the axis direction of the upper intermediate roller 7. The bottom of the first arc groove 101 is evenly distributed with guide wheels 4. When changing the rollers, when the roller system is fully opened, the support device can be inserted into the roller system, wherein the two second arc grooves 301 of the lower support part 3 contact the two next intermediate rollers 8, thereby obtaining the fulcrum point, so that the two first arc grooves 101 of the upper support part 1 lift up the two upper intermediate rollers 7 to avoid falling directly on the spray beam when the upper intermediate roller 7 is replaced, and prevent the locking nut of the spray beam from loosening. By arranging the guide wheel 4 at the bottom of the first circular arc groove 101, when replacing the previous intermediate roller, the staff can directly push the previous intermediate roller by hand, reducing the impact of the roller changing trolley on the driving side suspension, and also avoiding the friction between the roller body of the previous intermediate roller and the first circular arc groove 101 when moving, causing scratches on the roller surface.

[0030] In specific implementation, the bottom of the second arc groove 301 can also be equipped with a guide wheel 4, and the guide wheel 4 is a rubber wheel. This arrangement facilitates the insertion of the support device when the roller system is opened, and can also avoid friction between the roller surface and the second arc groove 301, thereby preventing the roller surface from being scratched.

[0031] In this embodiment, a first partition section 102 is provided between the two first circular arc grooves 101, and the outer end walls of the two first circular arc grooves 101 are higher than the first partition section 102 or flush with the first partition section 102. This arrangement can separate the two upper intermediate rollers 7, while increasing the coverage range of the first circular arc groove 101 and improving the stability of the upper intermediate roller 7 falling in the first circular arc groove 101.

[0032] In this embodiment, considering the aesthetics, the two second arc grooves 301 have the same structure as the two first arc grooves 101, that is, there is also a second partition section 302 between the two second arc grooves 301, and the outer end walls of the two second arc grooves 301 are higher than the second partition section 302 or flush with the second partition section 302. This arrangement can increase the coverage range of the second arc grooves 301 and improve its support stability.

[0033] Among them, the center angle corresponding to the first arc groove 101 is 90° to 180°. In specific implementation, the center angle corresponding to the first arc groove is selected according to the support stability and the convenience of extraction. The center angle corresponding to the second arc groove 301 is 90° to 180°. In specific implementation, the center angle corresponding to the second arc groove is reasonably selected according to the support stability.

[0034] In this embodiment, the two side walls of the opening end of the groove 201 are respectively connected to the outer end wall of the adjacent first arc groove 101 and the outer end wall of the second arc groove 301. This arrangement can expand the opening range of the groove 201, avoid hitting the spray beam during the roller change process, and simplify the structure of the support device to make it aesthetically pleasing.

[0035] In this embodiment: the positioning seat 2 is provided with a hollow circular hole 5, the hollow circular hole 5 is located between the two grooves 201, and the axis direction of the hollow circular hole 5 is parallel to the axis direction of the upper intermediate roller 7. The bottom of the groove 201 is provided with a plurality of hollow sections 6 connected to the hollow circular hole 5. By providing the hollow circular hole 5 and the hollow sections 6, the weight of the support device can be reduced and the convenience of operation can be improved. Among them, the hollow sections 6 are circular, rectangular, prismatic or triangular. The shape of the hollow sections can be reasonably selected according to aesthetics.

[0036] This embodiment solves the problem of the upper intermediate roller having no stable support by designing a light, integrated intermediate roller support device. It is manufactured according to the shape of the rolling mill roll system to ensure that it can be placed inside the frame when the roll system is fully opened, solving the possible inapplicability of different rolling mill roll systems of different sizes. Effective support for the upper intermediate roller is achieved, and a guide wheel is installed in the first arc groove to ensure that the position of the upper intermediate roller body is stable and flexible to remove and install, solving the problem of the operator having no fulcrum during the replacement of an intermediate roller, especially when installing the upper intermediate roller. The guide wheel can accurately achieve the matching of the upper intermediate roller head and the drive side hook with the least effort, improving the convenience of the roll changing operation and shortening the downtime of the intermediate roller changing operation from 45 minutes to 15 minutes.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An upper intermediate roll support device, applied to a Sendzimir twenty-high rolling mill, characterized in that: include: An upper support part for supporting the last intermediate roller, a lower support part for contacting the next intermediate roller, and a positioning seat between the upper support part and the lower support part; The upper support portion includes two first arc grooves arranged in parallel and opening upward, the length direction of the first arc grooves extending along the axial direction of the upper intermediate roller, the inner diameter of each of the first arc grooves matches the outer diameter of the upper intermediate roller for carrying an upper intermediate roller, the lower support portion includes two second arc grooves arranged in parallel and opening downward, the length direction of the second arc grooves extending along the axial direction of the next intermediate roller, the inner diameter of each of the second arc grooves matches the outer diameter of the next intermediate roller for supporting the upper support portion, both sides of the positioning seat are provided with grooves for avoiding the spray beam, the length direction of the grooves extending along the axial direction of the upper intermediate roller, and guide wheels are evenly distributed on the bottom of the first arc grooves.

2. The upper intermediate roller support device according to claim 1, characterized in that: A first partition section is provided between the two first circular arc grooves, and outer end walls of the two first circular arc grooves are higher than or flush with the first partition section.

3. The upper intermediate roller support device according to claim 1 or 2, characterized in that: A second partition section is provided between the two second circular arc grooves, and outer end walls of the two second circular arc grooves are higher than or flush with the second partition section.

4. The upper intermediate roller support device according to claim 1, characterized in that: The center angle corresponding to the first arc groove is 90° to 180°.

5. The upper intermediate roller supporting device according to claim 1 or 4, characterized in that: The central angle corresponding to the second arc groove is 90° to 180°.

6. The upper intermediate roller support device according to claim 1, characterized in that: The two side walls of the opening end of the groove are respectively connected to the outer end wall of the first circular arc groove and the outer end wall of the second circular arc groove adjacent thereto as a whole.

7. The upper intermediate roller supporting device according to claim 1, characterized in that: The positioning seat is provided with a hollow circular hole, the hollow circular hole is located between the two grooves, and the axial direction of the hollow circular hole is parallel to the axial direction of the previous intermediate roller.

8. The upper intermediate roller supporting device according to claim 7, characterized in that: The bottom of the groove is provided with a plurality of hollow sections which are connected with the hollow circular hole.

9. The upper intermediate roller supporting device according to claim 8, characterized in that: The hollow section is circular, rectangular, prismatic or triangular.

10. The upper intermediate roller supporting device according to claim 1, characterized in that: The groove bottom of the second arc groove is also evenly distributed with guide wheels, and the guide wheels are rubber wheels.

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