Axial automatic locking device of rolling mill

Abstract

The utility model provides a rolling mill axial automatic locking device which is installed on the left side and the right side of a roller bearing seat, a hydraulic cylinder base is fixed on a rolling mill housing, the front end of a hydraulic cylinder piston rod is connected with a pressing block, a locking clamping plate is a concave plate composed of a vertical plate and two transverse plates, and a concave groove formed by the vertical plate and the transverse plates is used for containing a hydraulic cylinder body. A horizontal T-shaped groove is formed in the vertical plate along the center line, a transverse groove of the T-shaped groove is used for containing a hydraulic cylinder piston rod, a vertical groove of the T-shaped groove is used for containing a pressing block, horizontal sliding grooves are formed in the two transverse plates, a positioning bolt penetrates through the sliding grooves to connect the locking clamping plate with a rolling mill housing, the sliding grooves can move relative to the positioning bolt, and a matching face connected with a bearing seat in an abutting mode is arranged on the side face of the locking clamping plate. Axial adjustment and self-locking of the rolling mill are automatically controlled through actions of the hydraulic cylinders on the two sides of the bearing, an axial system is adjusted more simply, conveniently and quickly, axial movement can be effectively prevented, stability is high, and therefore stability of a production line in the metallurgical steel rolling industry is improved, and product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron and steel metallurgy, and particularly relates to an axial automatic locking device for a rolling mill. Background Art

[0002] When the rolling mill adjusts the axial error offline, it can only rely on manual adjustment, which leads to the phenomenon of upper and lower roll misalignment after the rolling mill is put into use, especially too many online adjustments, low adjustment accuracy, and dimensional deviation. The finished rolling mill needs to be repeatedly adjusted according to the misalignment of the finished product. Chinese invention patent application CN101168170A discloses an axial locking method for an intermediate roll, wherein hydraulic cylinders are respectively installed on both sides of the rolling mill frame, the forward direction of the hydraulic cylinder is perpendicular to the bearing seat on the transmission side of the intermediate roll, the hydraulic cylinder is connected with a baffle, so that the baffle is movably connected with the slide groove, the hydraulic cylinder drives the baffle to slide arbitrarily in the slide groove, the baffle has a pin head, and the pin head can be inserted into the groove of the bearing seat on the transmission side of the intermediate roll, when the intermediate roll is driven by the axial force of the intermediate roll driving hydraulic cylinder fixed on the two side plates of the intermediate roll transmission to the specified position, the hydraulic cylinders installed on both sides of the rolling mill frame move inward respectively, and the left and right baffles move inward in the left and right slide grooves respectively, the slide groove plays a guiding role, and the baffle pin head cooperates with the groove of the left and right transmission side bearing seat of the intermediate roll to be inserted. The above device requires the cooperation of the intermediate roller driving hydraulic cylinder and the hydraulic cylinders installed on both sides of the rolling mill frame to make the pin head fit into the bearing seat groove and insert. The operation is relatively complicated, which increases the workload of workers. When employees are in a hurry, they tend to overlook the need to position the intermediate roller driving hydraulic cylinder in advance. The pin head and the bearing seat groove are not in the same straight line, which directly damages the pin head and affects the axial locking of the rolling mill. Summary of the invention

[0003] The technical problem solved by the utility model is that when a rolling mill adjusts axial error, the adjustment accuracy is low and repeated adjustments are required.

[0004] The utility model provides an axial automatic locking device for a rolling mill, which is installed on the left and right sides of a roller bearing seat, and is characterized in that it comprises two sets of identical axial adjustment self-locking mechanisms, and the axial self-locking mechanisms comprise a hydraulic cylinder, a locking clamping plate, and a positioning bolt. The hydraulic cylinder base is fixed on the rolling mill arch, and a pressure block is connected to the front end of the hydraulic cylinder piston rod. The locking clamping plate is a concave plate composed of a vertical plate and two horizontal plates, and the two horizontal plates are fixedly connected at the upper and lower ends of the vertical plate. The concave groove formed by the vertical plate and the horizontal plate is used to accommodate the hydraulic cylinder body, and the vertical plate is provided with a horizontal T-slot along the center line, and the T-slot horizontal groove is used to accommodate the hydraulic cylinder piston rod, and the T-slot vertical groove is used to accommodate the pressure block. Horizontal slide grooves are provided on both horizontal plates, and the positioning bolts pass through the slide grooves to connect the locking clamping plate with the rolling mill arch, and the slide grooves can move relative to the positioning bolts, so that the locking clamping plate can be automatically locked and released under the drive of the hydraulic cylinder, and a matching surface abutting the bearing seat is provided on the side of the locking clamping plate.

[0005] The transverse plate is provided with two slide grooves, each of which is provided with a positioning bolt, and the two positioning bolts are on the same horizontal line.

[0006] The matching surface is an L-shaped step surface.

[0007] The utility model has the following beneficial effects: the utility model adopts a small hydraulic cylinder as a power source, and automatically controls the axial adjustment and self-locking of the rolling mill through the action of the hydraulic cylinders on both sides of the bearing. It is simpler and faster to adjust the axial system, the work efficiency of employees is high, the axial movement can be effectively prevented, and the stability is high, thereby improving the stability of the production line in the metallurgical steel rolling industry and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 , a front view of the automatic axial locking device of a rolling mill according to the utility model.

[0009] Figure 2 , a side sectional view of the automatic axial locking device of a rolling mill according to the utility model. DETAILED DESCRIPTION

[0010] In order to clearly illustrate the technical features of this solution, the solution is described below through specific implementation methods and in combination with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the utility model.

[0011] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0012] like Figure 1 and Figure 2 As shown, an axial automatic locking device for a rolling mill is installed on the left and right sides of the roller bearing seat, including two sets of identical axial adjustment self-locking mechanisms. The axial self-locking mechanism includes a hydraulic cylinder 6, a locking clamping plate 1, and a positioning bolt 3. The base of the hydraulic cylinder 6 is fixed on the rolling mill arch. The front end of the hydraulic cylinder piston rod 7 is connected to a pressure block 5.

[0013] The locking card plate 1 is a concave plate composed of a vertical plate 8 and two horizontal plates 9. The two horizontal plates 9 are fixedly connected to the upper and lower ends of the vertical plate 8. The vertical plate 8 is provided with a horizontal T-shaped groove along the center line. The cylinder body of the hydraulic cylinder 6 is arranged in the concave groove 12 composed of the vertical plate 8 and the horizontal plate 9. The piston rod 7 is located in the horizontal groove 11 of the T-shaped groove, and the pressure block 5 is located in the vertical groove 10 of the T-shaped groove.

[0014] The side of the locking clamp 1 is provided with a mating surface 4 that abuts against the bearing seat. In this embodiment, the mating surface is an L-shaped step surface, and the step surface fits the side of the bearing seat. Both horizontal plates 9 are provided with horizontal slide grooves 2. The positioning bolts 3 pass through the slide grooves to connect the locking clamp 1 with the mill arch. The slide grooves 2 can move relative to the positioning bolts 3, so that the locking clamp 1 can be automatically locked and released under the drive of the hydraulic cylinder 6. In this embodiment, two slide grooves 2 are provided on the horizontal plate 9, and a positioning bolt 3 is provided in each slide groove 2. The two positioning bolts 3 are located on the same horizontal line.

[0015] The utility model adopts a small hydraulic cylinder 6 as a power source, and automatically controls the axial adjustment and self-locking of the rolling mill through the action of the hydraulic cylinders 6 on both sides of the bearing. It is simpler and faster to adjust the axial system, and the employees have high work efficiency. It can effectively prevent axial movement and has high stability, thereby improving the stability of the production line in the metallurgical steel rolling industry and improving product quality.

[0016] Other parts of the present invention not described in detail belong to the prior art and will not be described here.

[0017] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An automatic axial locking device for a rolling mill, installed on the left and right sides of a roller bearing seat, characterized in that: It comprises two sets of identical axial adjustment self-locking mechanisms, which comprise a hydraulic cylinder, a locking card plate, and a positioning bolt. The hydraulic cylinder base is fixed on the rolling mill arch, a pressure block is connected to the front end of the hydraulic cylinder piston rod, and the locking card plate is a concave plate composed of a vertical plate and two horizontal plates. The two horizontal plates are fixedly connected to the upper and lower ends of the vertical plate. The concave groove formed by the vertical plate and the horizontal plate is used to accommodate the hydraulic cylinder body. The vertical plate is provided with a horizontal T-slot along the center line. The T-slot horizontal groove is used to accommodate the hydraulic cylinder piston rod, and the T-slot vertical groove is used to accommodate the pressure block. Horizontal slide grooves are provided on both horizontal plates. The positioning bolts pass through the slide grooves to connect the locking card plate to the rolling mill arch. The slide grooves can move relative to the positioning bolts, so that the locking card plate can be automatically locked and released under the drive of the hydraulic cylinder. A mating surface abutting the bearing seat is provided on the side of the locking card plate.

2. The automatic axial locking device for a rolling mill according to claim 1, characterized in that: The transverse plate is provided with two slide grooves, each of which is provided with a positioning bolt, and the two positioning bolts are on the same horizontal line.

3. The automatic axial locking device of a rolling mill according to claim 1, characterized in that: The matching surface is an L-shaped step surface.

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