Integral roller system

Abstract

The purpose of the present invention is to provide an integral roller system to ensure that the position of the lower bearing seat is convenient to adjust and safe and reliable, including upper and lower bearing seats for fixing the upper and lower rollers, an elastic element is set between the upper and lower bearing seats to drive the upper and lower separation of the two, the bottom of the lower bearing seat is connected to the base by bolts and constitutes a limit in the axial direction of the roller and a limit in the direction of travel of the material, and a spring is sleeved on the bolt body of the bolt, and the spring provides elastic force to drive the lower bearing seat to press or approach the base. In the above scheme, the base is fixed on the rolling mill frame, and when the adjustment mechanism applies an upward external force to the lower bearing seat, the lower bearing seat is guided by the bolt and moves in the vertical direction. At the same time, the spring provides elastic force to drive the lower bearing seat to press or approach the base, ensuring a reliable connection between the two.

Description

Technical Field

[0001] The present invention relates to steel rolling equipment, in particular to a roller structure of a rolling mill. Background Art

[0002] In the prior art, the processing of wire rods is mostly done by rolling mills. The rolling mill can be generally divided into arch-type frames, cantilever-type frames or arch-type frames welded from profiles according to its structure. The upper and lower rollers form a roller system to roll the materials to be rolled. The rollers will cause fatigue wear or damage after long-term use, and the rollers need to be maintained or replaced. Since the lower bearing seat is fixed to the bottom support of the arch-type frame with bolts, the pressing device of the upper bearing seat is usually set on the upper crossbeam, that is, the upper and lower rollers are set independently of each other. When replacing the rollers, not only is it time-consuming and labor-intensive to replace the rollers, but the roller system also needs to be repositioned, adjusted, and locked.

[0003] In order to save time and improve the working efficiency of the rolling mill, the applicant of this application previously applied for a patent named "Integrated Roller System" with patent number CN104668286B, which includes upper and lower bearing seats for fixing upper and lower rollers, a spring is arranged between the upper and lower bearing seats to drive the upper and lower separation of the two, the lower end of the bearing seat column is fixedly connected to the lower bearing seat, and the lower plate surface of the web located in the middle of the lower bearing seat is reserved for cooperation with the slide plate 100, and the first, second and third convex strips 102a, 102b, 102c are arranged on the slide plate 100 from the front end to the middle in sequence, wherein the first and second convex strips 102a, 102b constitute a slot 103 that is clamped on the axial end surfaces of the lower end of the lower bearing seat 40 at the power end, and the second and third convex strips 102b, 102c are arranged at the axial end surfaces of the two lower bearing seats 40 opposite to each other, so that the integrated roller system can be fixed on the slide plate 100. During the use of the roller system, the roller surface will be worn, so that the gap between the two rollers becomes larger and cannot meet the rolling requirements of the rolled piece. However, the rollers are not completely damaged or fatigued and can continue to be used. Therefore, the distance between the upper and lower rollers must be adjusted. However, the upper and lower positions of the lower bearing seat 40 in the above structure are not easy to adjust, and there is no guide mechanism during the adjustment process, which may cause the lower bearing seat 40 to tilt. Summary of the invention

[0004] The object of the present invention is to provide an integrated roller system, which ensures that the position of the lower bearing seat can be adjusted conveniently and safely.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an integrated roller system, including upper and lower bearing seats for fixing upper and lower rolling rollers, an elastic element is arranged between the upper and lower bearing seats to drive the upper and lower separation of the two, the bottom of the lower bearing seat is connected to the base by bolts and constitutes a limit in the axial direction of the rolling roller and a limit in the direction of travel of the material, a spring is sleeved on the bolt body, and the spring provides elastic force to drive the lower bearing seat to press or approach the base.

[0006] In the above scheme, the base is fixed on the rolling mill frame. When the adjusting mechanism applies an upward external force to the lower bearing seat, the lower bearing seat moves in the vertical direction under the guidance of the bolts. At the same time, the spring provides elastic force to drive the lower bearing seat to press or approach the base to ensure a reliable connection between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the three-dimensional structure of the integral roller system;

[0008] Figure 2 for Figure 1 Left view of

[0009] Figure 3 is a three-dimensional schematic diagram of the lower bearing seat;

[0010] Figure 4 is a schematic diagram of the three-dimensional structure of the base;

[0011] Figure 5 Schematic diagram of the three-dimensional structure of the wear-resistant plate;

[0012] Figure 6 for Figure 1 A partially enlarged schematic diagram of . DETAILED DESCRIPTION

[0013] For ease of explanation and understanding, several basic concepts of direction and position are first explained and defined.

[0014] The feed side of the roll refers to the side where the material to be rolled begins to enter the roll for rolling, and the discharge side of the roll refers to the side where the material to be rolled leaves the roll after being rolled; the up and down directions refer to the state where the roll is placed horizontally, and the following description only takes this state as an example. This rolling mill can be completely placed in a vertical roll position for rolling.

[0015] See also Figure 1-Figure 3An integral roller system includes upper and lower bearing seats 30 and 40 for fixing upper and lower rollers 10 and 20. An elastic element is arranged between the upper and lower bearing seats 30 and 40 to drive the upper and lower parts to separate. The bottom of the lower bearing seat 40 is connected to the base 50 by a bolt 61 and forms a limit position in the axial direction of the roller and a limit position in the direction of travel of the material. A spring 63 is sleeved on the bolt body of the bolt 61. The spring 63 provides elastic force to drive the lower bearing seat 40 to press or approach the base 50. Because the distance between the two rollers needs to be adjusted before the roller system is assembled to meet the rolling requirements, and the roller surface will be worn during the use of the roller system, so that the gap between the two rollers becomes larger and cannot meet the rolling requirements of the rolled piece. However, the rollers are not completely damaged or fatigued and can continue to be used. This is achieved by utilizing an adjusting mechanism to adjust the roller core height of the lower roller 20, that is, the distance between the lower bearing seat 40 and the base 50. Since the base 50 is fixed on the rolling mill frame, when the adjusting mechanism applies an upward external force to the lower bearing seat 40, the lower bearing seat 40 is guided by the bolt 61 and moves in the vertical direction. At the same time, the spring 63 provides elastic force to drive the lower bearing seat 40 to press or approach the base 50, thereby ensuring a reliable connection between the two.

[0016] In order to limit the relative positions of the bottom plate 50 and the lower bearing seat 40 in the vertical direction, a concave notch 42 is provided on the lower bearing seat 40 on the feed side and the discharge side. The opening of the concave notch 42 on the feed side points in the opposite direction of the travel direction of the material to be rolled, and the opening of the concave notch 42 on the discharge side points in the same direction as the travel direction of the material to be rolled. The portion below the concave notch 42 is connected to the plate frame-shaped base 50 by bolts 61.

[0017] Specifically, Figure 6As shown, a through slot 43 is provided at the lower part of the concave notch 42, the opening of the through slot 43 on the feed side points in the opposite direction of the travel direction of the material to be rolled, and the opening of the through slot 43 on the discharge side points in the same direction as the travel direction of the material to be rolled, the slot length of the through slot 43 is in the vertical direction, and a missing portion 51 is provided at the corresponding position of the base 50 and the through slot 43, and the bolt 61 passes through the missing portion 51 and the through slot 43 in turn and is connected to the nut 62, and the spring 63 is sleeved on the bolt body of the bolt 61 between the nut 62 and the upper end surface of the through slot 44. As shown in the figure, the concave notch 42 is actually a slot shape, the slot mouth faces outward, the slot length direction is parallel to the roller core of the roller, the slot length direction of the through slot 43 is arranged in the vertical direction, and the through slot 43 passes through the bottom wall of the concave notch 42. During installation, the spring 63 is first sleeved on the bolt body of the bolt 61, and then pushed in from the notch of the through groove 43 and the opening of the missing portion 55. Due to the elastic force of the spring 63, the lower bearing seat 40 always presses the base 50. When the height of the roll core of the lower roller 20 needs to be adjusted, an external force drives the lower bearing seat 40 to move upward, and the gap between the lower bearing seat 40 and the base 50 becomes larger. At this time, the spring 63 is compressed, thereby achieving the purpose of adjusting the height of the roll core of the lower roller 20.

[0018] In order to ensure the reliability of the connection between the lower bearing seat 40 and the base 50, as shown in FIG. Figure 6 As shown, the T-shaped head of the bolt 61 is placed horizontally in the width direction of the missing portion 51, and a gasket 64 is provided between the spring 63 and the upper end surface of the through slot 43 and the lower end surface of the nut 62. A limiting convex strip 431 is provided on the outer side of the upper end surface of the through slot 43, and the limiting convex strip 431 cooperates with the gasket 64 to limit the displacement of the two in the direction of material movement. The gasket 64 is blocked by the limiting convex strip 431 and the upper end surface of the through slot 43 and cannot move in the horizontal plane, thereby ensuring that the bolt 61 cannot be separated from the notch of the through slot 43 and the opening of the missing portion 51, and ensuring the reliable connection between the lower bearing seat 40 and the base 50.

[0019] Described spring 63 is compression spring or disc spring or inner and outer ring spring. Any one of these springs can be selected to achieve.

[0020] As a preferred solution, the inner and outer ring springs of the inner and outer ring springs have opposite rotation directions, which can increase the rigidity of the springs, and at the same time, the torsional forces of the two springs with opposite rotation directions offset each other when compressed, making their performance more stable.

[0021] In order to cooperate with the adjustment mechanism, the bottom surface of the lower bearing seat 40 is an E-shape pointing downward, and the two guide grooves 41 formed by the E-shape are for the adjustment mechanism to be placed.

[0022] Since the integral roller system needs to move on the rolling mill frame, a wear-resistant plate 70 is provided on the lower plate surface of the base 50. Figure 5As shown, the main body 71 of the wear-resistant plate 70 is connected to the base 50, and the inner side of the main body 71 is provided with a convex strip 72 protruding downward, and the length direction of the convex strip 72 is consistent with the length direction of the lower roller 20. The convex strip 72 and the lower plate surface of the main body 71 together form a matching surface for sliding cooperation with the track at the bottom of the rolling mill frame, and the matching surface of the convex strip 72 and the track is an inclined surface 721. The contact-type moving cooperation between the track and the inclined surface 721 of the convex strip 72 can not only play the role of sliding cooperation, but also play the role of guiding, effectively preventing the integral roller system from tilting during movement.

[0023] In order to facilitate the clamping of the drive mechanism, such as Figure 4 As shown, a T-shaped head 52 is also provided at the end of the base 50, and the clamping head on the cylinder piston rod clamps the T-shaped head 52 to drag the base 50 to move along the track.

Claims

1. An integrated roller system, comprising upper and lower bearing seats (30, 40) for fixing upper and lower rollers (10, 20), wherein an elastic element is arranged between the upper and lower bearing seats (30, 40) to drive the upper and lower bearing seats to separate, characterized in that: The bottom of the lower bearing seat (40) is connected to the base (50) by a bolt (61) and forms a limit fit in the axial direction of the roller and in the direction of movement of the material. A spring (63) is sleeved on the bolt body of the bolt (61). The spring (63) provides an elastic force to drive the lower bearing seat (40) to be pressed tightly or close to the base (50). The lower bearing seat (40) is provided with concave notches (42) on the sides where the feed side and the discharge side are located. The opening of the concave notch (42) on the feed side points in the opposite direction of the travel direction of the material to be rolled, and the opening of the concave notch (42) on the discharge side points in the same direction as the travel direction of the material to be rolled. The portion below the concave notch (42) is connected to the plate frame-shaped base (50) by bolts (61). A through groove (43) is provided at the lower part of the concave notch (42); the opening of the through groove (43) on the feeding side points in the opposite direction of the travel direction of the material to be rolled, and the opening of the through groove (43) on the discharging side points in the same direction as the travel direction of the material to be rolled; the groove length of the through groove (43) is located in the vertical direction; a missing portion (51) is provided at a position corresponding to the through groove (43) on the base (50); a bolt (61) passes through the missing portion (51) and the through groove (43) in sequence and is connected to a nut (62); a spring (63) is sleeved on the bolt body of the bolt (61) between the nut (62) and the upper end surface of the through groove (43); The bottom surface of the lower bearing seat (40) is in an E-shape pointing downwards. Two guide grooves (41) formed by the E-shape are provided for the adjustment mechanism to be inserted. The adjustment mechanism adjusts the distance between the lower bearing seat (40) and the base (50).

2. The integrated roller system according to claim 1, characterized in that: The T-shaped head of the bolt (61) is placed transversely in the width direction of the missing portion (51); a gasket (64) is provided between the spring (63) and the upper end surface of the through groove (43) and the lower end surface of the nut (62); a limiting convex strip (431) is provided on the outer side of the upper end surface of the through groove (43); the limiting convex strip (431) cooperates with the gasket (64) to limit the displacement of the two in the direction of material movement.

3. The integrated roller system according to claim 1, characterized in that: The spring (63) is a compression spring or a disc spring or an inner and outer ring spring.

4. The integrated roller system according to claim 3, characterized in that: The inner and outer coil springs have opposite rotation directions to the outer coil springs.

5. The integrated roller system according to claim 1, characterized in that: A wear-resistant plate (70) is arranged on the lower plate surface of the base (50); a main body (71) of the wear-resistant plate (70) is connected to the base (50); a convex strip (72) is arranged on the inner side edge of the main body (71) so as to protrude downward; the length direction of the convex strip (72) is consistent with the length direction of the lower roller (20); the convex strip (72) and the lower plate surface of the main body (71) together form a matching surface for slidingly matching with a rail at the bottom of the rolling mill frame; and the matching surface between the convex strip (72) and the rail is an inclined surface (721).

6. The integrated roller system according to claim 1, characterized in that: A T-shaped head (52) is also provided at the end of the base (50), and a clamping head on the oil cylinder piston rod clamps the T-shaped head (52) to drag the base (50) to move along the track.

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