CN219899647U

CN219899647U - Fastening structure of high-speed roller

Info

Publication number: CN219899647U
Application number: CN202320486567.9U
Authority: CN
Inventors: 赵军
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-10-27
Anticipated expiration: 2033-03-14

Abstract

The utility model relates to the technical field of cold rolling, in particular to a fastening structure of a high-speed roller, which comprises a roller seat, a roller and a fastening piece, wherein the roller seat is used for being fixed on a guide plate frame, the roller seat is provided with a roller shaft, the roller is arranged on the roller shaft, one side of the roller is used for being contacted with an upper working roller and rotates along with the rotation of the upper working roller, the other side of the roller is provided with the fastening piece, one end of the fastening piece is connected with the guide plate frame, and the other end of the fastening piece is connected with the roller, so that the vibration of the roller under the impact of the upper working roller is reduced. The other side of the high-speed roller opposite to the upper working roller is provided with the fastening piece, so that the high-speed roller is limited to move away from the upper working roller under the impact of the upper working roller, the vibration amplitude of the roller is reduced, the stability of the roller is improved, the roller is prevented from being damaged too early, the service life of the roller is prolonged, and the maintenance difficulty of equipment is reduced.

Description

Fastening structure of high-speed roller

Technical Field

The utility model relates to the technical field of cold rolling, in particular to a tightening structure of a high-speed roller.

Background

In the production process of rolled plates, the plates release a large amount of deformation heat, emulsion is required to be lubricated and cooled, after the emulsion is sprayed out to finish lubrication and cooling, in order to reduce accumulation and residue of the emulsion on the surfaces of the plates to the greatest extent, the pressure of a wringing roller and an air blowing device is reduced, an anti-entanglement guide plate is designed to receive the emulsion cooled by an upper intermediate roller and an upper supporting roller and quickly guide the emulsion to two sides, and the emulsion is discharged to an emulsion collecting tank from a space outside the width of strip steel. In order to achieve a good sealing and guiding effect, it is required that the gap between the wear plate at the front end of the anti-tangling plate and the upper work roll is kept small enough and unchanged during rolling in the rolling mill. The hydraulic valve cannot actually achieve a hundred percent zero leakage, and the simple electro-hydraulic control technology is very difficult to achieve.

Chinese document CN104209353a proposes a device for cleaning strip during rolling, comprising an anti-tangling plate arranged above the strip outlet side of the cold rolling mill, and a water deflector arranged at the end of the anti-tangling plate close to the upper working roll. The two sides of the water baffle are respectively provided with a roller, the rollers are connected with a guide plate frame of the anti-winding guide plate through roller seats, and the anti-winding guide plate is arranged on the guide plate frame, so that the rollers and the waterproof plate can be driven to be close to the upper working roller when the anti-winding guide plate moves, the rollers are contacted with the upper working roller during rolling and are pressed against the upper working roller by the gravity of the anti-winding guide plate, and a small gap is maintained between the water baffle and the upper working roller. The roller is generally a high-speed roller (the rotating speed is up to 3600 r/min), and after the high-speed roller is contacted with the upper working roller, a small gap between the waterproof plate and the upper working roller can be kept and the gap is kept unchanged. But the gyro wheel is being connected with the gyro wheel seat with the mode of cantilever beam, stability is relatively poor, and high-speed gyro wheel is leaning on the back of last work roll, and the gyro wheel needs to bear the impact that goes up the work roll and bring in rolling process, leads to the gyro wheel to produce along the gyro wheel with go up the vibration on the work roll axle heart connecting line, makes the premature destruction of gyro wheel, reduces the life-span of high-speed gyro wheel, brings very big difficulty for actual production and maintenance.

Disclosure of Invention

The utility model aims to provide a fastening structure of a high-speed roller, which solves the problem that the service life of the high-speed roller is short due to the impact of an upper working roller.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a tight structure of high-speed gyro wheel, includes gyro wheel seat, gyro wheel, tight piece that decides, and the gyro wheel seat is used for fixing on the guide plate frame, and the gyro wheel seat is equipped with the roller shaft, and the gyro wheel setting is epaxial at the roller, and one side of gyro wheel is used for with last work roll contact, and the gyro wheel rotates along with last work roll rotation, and the opposite side of gyro wheel is equipped with tight piece that decides, and tight piece one end is connected with the guide plate frame, and the other end is connected with the gyro wheel to reduce the vibration of gyro wheel under the impact of last work roll.

The other side of the high-speed roller, which is opposite to the upper working roller, is provided with the fastening piece, so that the high-speed roller is limited to move away from the direction of the upper working roller under the impact of the upper working roller, the vibration amplitude of the roller is reduced, the stability of the roller is improved, the roller is prevented from being damaged too early, the service life of the roller is prolonged, and the maintenance difficulty of equipment is reduced.

Further, the fastening piece is a rod piece, one end of the rod piece is fixedly connected with the roller shaft, and the other end of the rod piece is connected with the guide plate frame.

Further, one end of the tightening piece is provided with an external thread, the roller seat is provided with a threaded hole, the external thread of the tightening piece is connected with the threaded hole on the roller seat, and the other end of the tightening piece is abutted against the guide plate frame.

Further, the fastening piece is a bolt, and the end face of the nut of the bolt is abutted against the surface, facing the roller, of the guide plate frame.

Further, the guide plate frame is provided with a sinking groove, the roller seat is arranged in the sinking groove, and the shape and the size of the sinking groove correspond to those of the roller seat, so that the contact surface of the roller seat and the guide plate frame is prevented from rotating relatively.

Further, the sinking groove is rectangular in shape, and the contact surface of the roller seat connected with the guide plate frame is rectangular.

Further, the depth of the sinking groove is not less than 6mm.

Further, a bearing is arranged between the roller and the roller shaft, and the oil-gas lubrication channel is arranged on the roller shaft and is also connected with the end face of the bearing, so that the running heat and friction force of the bearing are reduced.

Further, the oil-gas lubrication channel comprises an oil-gas lubrication hole arranged on the side surface of the roller seat, and lubrication oil gas enters the oil-gas lubrication channel through the oil-gas lubrication hole and sequentially flows through the roller seat, the roller shaft and the bearing.

The utility model has the following beneficial effects:

1. according to the utility model, the fastening piece is arranged on one side of the high-speed roller far away from the upper working roller, and the two ends of the fastening piece are respectively connected with the roller seat and the guide plate frame, so that the movement of the roller in the direction far away from the upper working roller is limited, the vibration amplitude of the roller under the impact of the upper working roller is reduced, the stability of the roller is improved, the premature failure of the roller is prevented, the service life of the roller is prolonged, and the maintenance difficulty of equipment is reduced.

2. A sinking groove stop is arranged between the roller seat and the guide plate frame to stop and position, the relative rotation of the contact surface of the roller seat and the guide plate frame is limited, the roll seat is prevented from tipping caused by the impact of the upper working roll.

3. The high-speed bearing arranged inside the high-speed roller can generate heat in the high-speed running process, and the oil-gas lubrication mode can not only play a role in lubrication, but also play a role in cooling, so that the service life of the bearing is prolonged to a certain extent compared with other lubrication modes.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the present utility model;

FIG. 2 is a front view of a portion of the structure of the present utility model;

FIG. 3 is a right side view of FIG. 2;

wherein: the device comprises a winding prevention guide plate 1, a guide plate frame 2, a sinking groove 21, a roller 3, a roller seat 4, a roller mounting part 41, a fastening piece 5, a connecting piece 6, a roller shaft 7, a bearing 8, an oil-gas lubrication channel 9, an oil-gas lubrication oil hole 91, a supporting roller 100, a middle roller 200 and a working roller 300.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

Referring to fig. 1 to 3, as an embodiment of the present utility model, there is provided a tightening structure of a high-speed roller, which includes an upper backup roll 100, an upper middle roll 200, and an upper work roll 300 arranged up and down, an anti-entanglement guide 1 is provided at an outlet side of the upper work roll 300, a lower portion of the anti-entanglement guide 1 is fixed on a guide frame 2, and the high-speed roller is provided at a lower portion of the anti-entanglement guide 1 and is connected with the guide frame 2.

The high-speed roller 3 is located between the anti-winding guide plate 1 and the upper working roller 200, one side of the guide plate frame 2 is provided with a roller seat 4, the roller 3 is arranged on the roller seat 4 in a manner of being rotatable around the center thereof, one side of the roller 3 is in contact with the upper working roller, the roller 3 rotates along with the rotation of the upper working roller, the other side of the roller 3 is provided with a fastening piece 5, one end of the fastening piece 5 is connected with the guide plate frame 2, and the other end of the fastening piece is connected with the roller 3, so that vibration of the roller 3 under the impact of the upper working roller is reduced.

Referring to fig. 2 and 3, the side surface of the roller seat 4 is connected with the guide plate frame 2 through a connecting piece 6, and in this example, the connecting piece 6 is a bolt and a nut, specifically: the roller seat 4 and the guide plate frame 2 are respectively provided with a through hole, and bolts penetrate through the through holes of the roller seat 4 and the guide plate frame 2 and are connected with each other by adopting nuts at the other side, so that the roller seat 4 is fixed on the guide plate frame 2. One side of the roller seat 4 far away from the guide plate frame 2 is provided with a roller mounting part 41, the roller mounting part 41 is provided with a roller shaft 7, one end of the roller shaft 7 is fixed on the roller mounting part 41, and the other end is connected with the roller 3 through a bearing 8, so that the roller 3 is mounted on the roller seat 4 in a cantilever manner.

Referring to fig. 1 and 2, the roller 3 is in contact with the upper work roll 300 and rotates as the upper work roll 300 rotates at a high speed, so that the roller 3 vibrates under the impact of the upper work roll 300. The other side of the roller 3 opposite to the upper working roller 300 is provided with the fastening piece 5, so that the roller 3 is limited to move in the direction away from the upper working roller 300 under the impact of the upper working roller 300, the vibration amplitude of the roller 3 is reduced, the stability of the roller is improved, the roller is prevented from being damaged too early, the service life of the roller is prolonged, and the maintenance difficulty of equipment is reduced.

In this example, the fastening piece is a bolt, the roller seat 4 is provided with a threaded hole, the bolt is connected with the threaded hole of the roller seat 4, and the end face of the nut of the bolt is abutted with the surface of the guide plate frame facing the roller, or the end face of the nut is kept in a smaller gap with the surface of the guide plate frame facing the roller. In other embodiments, the fastening member may also be a screw, one end of which is screwed with the roller seat 4 and the other end of which abuts against the guide plate frame or is kept at a small distance from the guide plate frame 2. The connection of the fastening member and the roller seat 4 is not limited to threaded connection, a threaded hole is formed in the guide plate frame 2, and a bolt or a screw rod can also be used to pass through the threaded hole of the guide plate frame 2 and abut against the roller shaft from the end or keep a small gap between the end and the roller shaft.

In addition, the fastening member 5 is not limited to having external threads, and may be other rod members, for example, a polished rod having a surface with no threads, one end of the polished rod being welded to the roller seat 4, the other end being in contact with the guide plate frame 2, or one end being welded to the guide plate frame 2, and the other end being in contact with the roller seat 4. The fastening member 5 may be in the form of a plate member or a block member other than the lever member, as long as the relative displacement between the roller mount 4 and the guide frame 2 in the direction away from the upper work roller 300 can be restricted.

The fastening member 5 limits the vibration of the roller 3 in the direction of connecting the upper work roll 300 by limiting the relative displacement between the roller seat 4 and the guide plate frame 2 in the direction away from the upper work roll 300, thereby improving the stability and the service life of the roller 3.

Referring to fig. 2 and 3, since the roller 1 vibrates under the impact of the upper work roll 300, the energy of the vibration is transferred to the roller housing 4 through the roller shaft 7, so that the connection member 6 between the roller housing 4 and the guide frame 2 is subjected to a shearing force, resulting in damage of the connection member 6, and reduction of the connection strength of the roller housing 4 and the guide frame 2. For this purpose, a sink 21 is provided on the contact surface of the guide plate frame 2 with the roller seat 4, the roller seat 4 is installed in the sink 21, and the sink 21 has a shape and a size corresponding to those of the roller seat 4, so that the contact surface of the roller seat 4 and the guide plate frame 2 is prevented from rotating relatively, thereby forming a sink stop, and the contact surface of the roller seat 4 with the guide plate frame 2 is a stop surface. Because the rotating speed of the upper working roller rotating at high speed and the rotating speed of the high-speed roller are large, the impact force is strong, and in order to ensure the effect of the sink stop, the depth of the sink 21 is not less than 6mm, preferably 10mm. In this example, the sinking groove 21 is rectangular in shape, and the contact surface of the roller seat 4 connected with the guide plate frame 2 is rectangular. In other embodiments, the shape of the countersink 21 may be a shape other than a circle, for example, a triangle, an ellipse, or a special shape, which can prevent the contact surface of the roller seat 4 and the guide frame 2 from rotating relatively.

Since the high-speed bearing 8 installed inside the high-speed roller 3 generates heat during high-speed operation, an oil-gas lubrication passage 9 is provided for reducing the heat and lubricating the bearing. The oil-gas lubrication channel 9 comprises an oil-gas lubrication hole 91 arranged on the side surface of the roller seat 4, lubrication oil gas enters the oil-gas lubrication channel 9 through the oil-gas lubrication hole 91, sequentially flows through the roller seat 4, the roller shaft 7 and the bearing 8, and is connected with the end surface of the bearing, so that the running heat and friction force of the bearing are reduced. The oil gas lubrication channel adopts an oil gas lubrication mode, which not only can play a role in lubrication, but also can play a role in cooling, and compared with other lubrication modes, the service life of the bearing is prolonged to a certain extent.

In order to delay the abrasion of the roller 3 rotating at a high speed, the service life of the roller 3 is prolonged, the roller is made of alloy steel, and the roller 3 is quenched and tempered and hard-chromium plated, has high hardness, higher fatigue limit and multiple impact resistance, has good abrasion resistance and corrosion resistance, and is suitable for being in direct contact with a working roller.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a tight structure of high-speed gyro wheel, its characterized in that, including gyro wheel seat, gyro wheel, tight piece that decides, the gyro wheel seat is used for fixing on the guide plate frame, and the gyro wheel seat is equipped with the roller axle, and the gyro wheel setting is epaxial at the roller, and one side of gyro wheel is used for contacting with last work roll, and the gyro wheel rotates along with last work roll rotation, and the opposite side of gyro wheel is equipped with tight piece that decides, and tight piece one end is connected with the guide plate frame, and the other end is connected with the gyro wheel to reduce the vibration of gyro wheel under the impact of last work roll.

2. The fastening structure of a high-speed roller according to claim 1, wherein the fastening member is a rod, one end of the rod is fixedly connected with the roller shaft, and the other end of the rod is connected with the guide plate frame.

3. The fastening structure of a high-speed roller according to claim 2, wherein one end of the fastening member is provided with an external thread, the roller seat is provided with a threaded hole, the external thread of the fastening member is connected with the threaded hole on the roller seat, and the other end of the fastening member abuts against the guide plate frame.

4. A tightening structure of a high-speed roller according to claim 3, wherein the tightening member is a bolt, and a nut end surface of the bolt abuts against a surface of the guide plate frame facing the roller.

5. The fastening structure of a high-speed roller according to claim 1, wherein the guide frame is provided with a sink groove, the roller seat is installed in the sink groove, and the size of the sink groove corresponds to the size of the roller seat, so that the contact surface of the roller seat and the guide frame is prevented from rotating relatively.

6. The fastening structure of a high-speed roller according to claim 5, wherein the sinking groove is rectangular in shape, and a contact surface of the roller seat connected with the guide frame is rectangular.

7. A tightening structure of a high-speed roller according to claim 5 or 6, wherein the depth of the sink is not less than 6mm.

8. The fastening structure of a high-speed roller according to claim 1, wherein a bearing is arranged between the roller and the roller shaft, and the fastening structure further comprises an oil-gas lubrication channel arranged on the roller shaft, wherein the oil-gas lubrication channel is further connected with the end face of the bearing, so that the running heat and friction force of the bearing are reduced.

9. The fastening structure of a high-speed roller according to claim 8, wherein the oil-air lubrication passage includes oil-air lubrication holes provided at the sides of the roller seat, and the lubrication oil air enters the oil-air lubrication passage through the oil-air lubrication holes to sequentially flow through the roller seat, the roller shaft and the bearing.